Patent Application
20250122679
The present application claims the priority of the following Chinese patent applications: serial No. CN202311317790.1, filed on Oct. 11, 2023, CN202322737404.6, filed on Oct. 11, 2023, CN202311387529.9, filed on Oct. 24, 2023, CN202322863724.6, filed on Oct. 24, 2023, CN202323261391.6, filed on Nov. 30, 2023, CN202323265129.9, filed on Nov. 30, 2023; the disclosure of which is hereby incorporated by reference herein in its entirety for all purposes.
The disclosure belongs to a technical field of garden tools, and particularly relates to a high-pressure cleaning device.
In the field of high-pressure cleaning, especially when it comes to road cleaning, a typical practice involves utilizing a high-pressure cleaning device, where the user connects a high-pressure water gun. The road is then cleaned with the jet of high-pressure water emanating from the nozzle. Alternatively, a floor brush can be attached to the gun rod of the water gun via a quick-connect fitting, enabling the user to hold the water gun and push the floor brush along the road. However, this method suffers from insufficient rigidity in the connection between the brush and the water gun, resulting in wobbling at the interface. Moreover, the user has to manually push and pull the brush back and forth, leading to low efficiency, uneven cleaning, and user fatigue. This approach is not well-suited for extensive work areas like roads, parks, plazas, and sidewalks. Furthermore, current floor-cleaning devices often incorporate gasoline engines, contributing to vibration, noise, and pollution.
Existing high-pressure cleaning devices generally consist of a machine head and a high-pressure water gun. The machine head pumps water from a source and delivers it to the water gun, allowing the user to directly clean the floor with the water gun or attach a floor brush to the front of the water gun and push it along while holding the water gun. The drawback of this method is that the user has to bear the full weight of both the cleaning water gun and the floor brush, resulting in high physical demands. Additionally, for greater flexibility, the cleaning water gun is typically not designed to be excessively long, necessitating the user to bend over during operation, which compromises user comfort.
The power specifications vary between different countries or regions, and the compatible plug types also differ. For example, in North America, household power supply mainly includes two types: 120V 15 A and 120V 20 A. The hot and neutral terminals of the 120V 15 A plug are arranged parallel to each other, while the hot and neutral terminals of the 120V 20 A plug are arranged perpendicular to each other. However, many use cases require compatibility with both 15 A rated power and 20 A rated power, yet the products designed for these two power types are not mutually compatible. This creates significant limitations in the scope of product usage.
Existing brushless high-pressure cleaning devices require maintaining a certain pressure and flow rate during operation, resulting in relatively high operational power for the high-pressure cleaning device. This, in turn, causes the components of the controller to generate excessive heat, significantly increasing the cooling requirements for the controller. Traditionally, the heat from the controller is discharged through the motor air duct by the high-speed rotation of the motor fan blades. However, this cooling method restricts the controller to be positioned directly behind the motor fan blades, so that the heat from the controller can be drawn away by the rotation of the fan blades. As a result, the layout of the motor pump and controller is highly constrained and fixed.
When using a high-pressure cleaning device or other products, there are often accessories that need to be stored, especially electrical components such as plugs, which require relatively high storage conditions. Traditional storage lids typically use a latch structure in their design. While this type of structure is simple and low-cost, prolonged use of the lid can cause wear on the latch and lead to failure. To address this, some high-pressure cleaning devices have adopted a button mechanism, but this design tends to be cumbersome, and requires manual pressing of the button to close the lid.
In view of the aforementioned drawbacks of the existing technology, the purpose of the disclosure is to provide a high-pressure cleaning device to solve at least some of defects mentioned above.
In some embodiments of the disclosure, a high-pressure cleaning device includes a carrier, a power unit, a valve assembly, a high-pressure water gun and a floor brush.
The power unit is mounted on the carrier. The power unit includes a pump. The valve assembly is mounted on the carrier. The valve assembly includes a liquid inlet, a first liquid outlet and a second liquid outlet. The liquid inlet is in communication with an outlet of the pump. The high-pressure water gun is in communication with the first liquid outlet through a pipeline. The floor brush is mounted on a bottom of the carrier. The floor brush includes a nozzle assembly. The nozzle assembly is in communication with the second liquid outlet through a pipeline. The valve assembly is configured to be switchable between at least two of the following positions: position one and position two. In position one, the liquid inlet is in communication with the first liquid outlet, and the liquid inlet is disconnected from the second liquid outlet. In position two, the liquid inlet is in communication with the second liquid outlet, and the liquid inlet is disconnected from the first liquid outlet.
In some embodiments of the disclosure, the valve assembly is configured to be further switchable to position three. When the valve assembly is in the position three, the liquid inlet is simultaneously in communication with the first liquid outlet and the second liquid outlet.
In some embodiments of the disclosure, the power unit is a DC motor pump, an AC motor pump or an internal combustion engine driven pump.
In some embodiments of the disclosure, the power unit further includes a battery pack. The battery pack is used to supply power to the pump.
In some embodiments of the disclosure, the power unit further includes a housing. The housing is arranged with a first accommodation cavity and a second accommodation cavity. The pump is mounted in the first accommodation cavity. The battery pack is mounted in the second accommodation cavity. The second accommodation cavity is arranged with a detachable compartment cover.
In some embodiments of the disclosure, the carrier includes a frame and wheels. One end of the frame is arranged with a handle arm. An upper end of the handle arm is arranged with a handle.
In some embodiments of the disclosure, the handle arm includes a first section and a second section. The first section is fixedly connected to the frame. The second section is movably connected to the first section, so that the second section can be switched between an expanded position and a folded position relative to the first section. When the second section is in the expanded position, an overall height of the handle arm can be increased. When the second section is in the folded position, the overall height of the handle arm can be reduced.
In some embodiments of the disclosure, a holding mechanism is arranged between the first section and the second section. The holding mechanism is configured to be able to hold the first section in the expanded position when the first section is in the expanded position, and to be able to release the first section from the expanded position.
In some embodiments of the disclosure, the holding mechanism includes a first locking block and a second locking block. An end face of the first locking block and an end face of the second locking block are oppositely arranged and abut against each other. A clamping mechanism is arranged between the first locking block and the second locking block. The clamping mechanism is configured to be able to adjust a magnitude of a pressing force between the first locking block and the second locking block. One of the first locking block and the second locking block is fixedly connected to the first section, and the other is fixedly connected to the second section.
In some embodiments of the disclosure, the valve assembly is mounted on the handle arm or the handle.
In some embodiments of the disclosure, the frame and/or the handle arm is arranged with a hanger for storing the high-pressure water gun and/or a pipeline of the high-pressure water gun.
In some embodiments of the disclosure, an end of the frame away from the handle arm is arranged with an anti-collision beam.
In some embodiments of the disclosure, the wheels comprise traveling wheels and a steering wheel. The traveling wheels are located on both sides of the frame. The steering wheel is located at a front end or a rear end of the frame. The floor brush is located between the traveling wheels on both sides, and the floor brush is located behind or in front of the steering wheel.
In some embodiments of the disclosure, the high-pressure cleaning device may also include an auxiliary bracket. The auxiliary bracket is detachably connected to the carrier. The power unit is mounted on the auxiliary bracket.
In some embodiments of the disclosure, the floor brush includes a cover shell. The cover shell is fixedly mounted on a bottom of the carrier. A bottom of the cover shell is open. Bristles are arranged on an edge of the bottom of the cover shell. The nozzle assembly is mounted inside the cover shell.
In some embodiments of the disclosure, the nozzle assembly includes a rotating member and a nozzle. The rotating member is rotatably connected to the cover shell or the carrier. A flow passage is arranged inside the rotating member. The nozzle is mounted on the rotating member, and the nozzle is in communication with the flow passage. The flow passage is in communication with the second liquid outlet.
In some embodiments of the disclosure, the nozzle is configured such that when water flow is ejected from the nozzle, a reaction force produced by the water flow against the nozzle can drive the rotating member to rotate.
In some embodiments of the disclosure, a fixed pipe joint is arranged on the cover shell or the carrier. The flow passage of the rotating member is in communication with one end of the fixed pipe joint. The other end of the fixed pipe joint is in communication with the second liquid outlet through a pipeline. A mechanical sealing unit is arranged between the rotating member and the fixed pipe joint.
The technical effect of the disclosure is as follows: The high-pressure cleaning device of the disclosure integrates a high-pressure cleaning device, a high-pressure water gun, and a floor brush on one carrier. Users can control the operation of the cleaning water gun or floor brush according to actual needs. When users operate the floor brush for cleaning, they only need to provide the pushing force for the carrier to move, without having to bear the weight of the high-pressure water gun and floor brush. This greatly reduces the user's workload, improves comfort, and thus can adapt to large-scale cleaning tasks.
Given the drawbacks of the existing technology mentioned above, the purpose of the disclosure is to provide an electrical device, gardening tool, and high-pressure cleaning device that can be compatible with different types of power sources.
To achieve the above purpose and other related purposes, the disclosure provides an electrical device. The electrical device includes an electrical appliance, a controller, a plug assembly and a conversion switch. The controller is electrically connected to the electrical appliance, and the controller is used to control the operation of the electrical appliance. The controller is arranged with a first live wire input terminal and a second live wire input terminal, with different rated input currents for the first and second live wire input terminals. The connected between the plug assembly and the controller. The conversion switch is configured to switch between the following two positions: position a and position b. In the position a, the conversion switch connects the live wire of the plug assembly to the first live wire input terminal. In the position b, the conversion switch connects the live wire of the plug assembly to the second live wire input terminal.
In some embodiments of the disclosure, the plug assembly includes a first set of connecting terminals and a second set of connecting terminals. The plug assembly is configured to switch between the following two states: state one and state two. In the state one, the first set of connecting terminals is exposed to be compatible with an external power socket. In the state two, the second set of connecting terminals is exposed to be compatible with an external power socket.
In some embodiments of the disclosure, a constraint mechanism is arranged between the conversion switch and the plug assembly. The constraint mechanism is configured to restrict the conversion switch to position a when the plug assembly is in state one, and to restrict the conversion switch to position b when the plug assembly is in state two.
In some embodiments of the disclosure, the first set of connecting terminals includes a first live wire terminal and a first neutral wire terminal, and the second set of connecting terminals includes a second live wire terminal and a second neutral wire terminal. The relative arrangement of the first live wire terminal and first neutral wire terminal is different from the relative arrangement of the second live wire terminal and the second neutral wire terminal.
In some embodiments of the disclosure, the plug assembly includes a main plug and a conversion plug. The first set of connecting terminals is mounted on the main plug. The first live wire terminal connected to the conversion switch through a wire. The second set of connecting terminals is mounted on the conversion plug. The conversion plug is configured to be detachably connected to the main plug, and when the conversion plug is connected to the main plug, the conversion plug enables the first live wire terminal to electrically connect with the second live wire terminal, and enables the first neutral wire terminal to electrically connect with the second neutral wire terminal.
In some embodiments of the disclosure, the first neutral wire terminal is electrically connected to the neutral wire port of the controller through a wire.
In some embodiments of the disclosure, the conversion plug is configured so that when the conversion plug is connected to the main plug, it can shield the first set of connecting terminals and expose the second set of connecting terminals.
In some embodiments of the disclosure, the conversion switch includes a first port, a second port, a third port, and a movable part. The movable part is connected to the first port and is movably arranged between a first position and a second position. When the movable part is in the first position, the movable part is connected to the second port, and the movable part is disconnected from the third port. When the movable part is in the second position, the movable part is connected to the third port, and the movable part is disconnected from the second port, Wherein the first port is electrically connected to the first live wire terminal, the second port is electrically connected to the first live wire input terminal, and the third port is electrically connected to the second live wire input terminal.
In some embodiments of the disclosure, it also includes a housing. The conversion switch is mounted in the housing. The constraint mechanism includes a storage portion arranged in the housing. The storage portion is configured to store the conversion plug, enabling the movable part to be switched from the second position to the first position when the conversion plug is stored in the storage portion, and enabling the movable part to be switched from the first position to the second position when the conversion plug is removed from the storage portion.
In some embodiments of the disclosure, the controller includes a main circuit, an AC to DC conversion unit, a power inverter, a main control chip, and a current detection circuit. The AC to DC conversion unit is connected in series to the main circuit. A power supply port of the power inverter is connected downstream of the AC to DC conversion unit. A detection signal output terminal of the current detection circuit is electrically connected to a main control chip. A control signal output terminal of the main control chip is electrically connected to a control signal input terminal of the power inverter. The first live wire input terminal and the second live wire input terminal are connected to a live wire port of the main circuit through a first branch and a second branch respectively. The current detection circuit is used to detect the current status of the first branch or the second branch. The main control chip is configured to control the working state of the power inverter based on the detection results of the current detection circuit. The power inverter is electrically connected to the electrical appliance.
To achieve the above purpose and other related purposes, the disclosure also provides a gardening tool. The gardening tool includes an electric motor, a controller, a plug assembly and a conversion switch.
The controller is electrically connected to the electric motor, and the controller electrically is used to control the operation of the electric motor. The controller is arranged with a first live wire input terminal and a second live wire input terminal, with different rated input currents for the first and second live wire input terminals. The conversion switch is connected between the plug assembly and the controller. The conversion switch is configured to switch between the following two positions: position a and position b. In the position a, the conversion switch connects the live wire of the plug assembly to the first live wire input terminal. In the position b, the conversion switch connects the live wire of the plug assembly to the second live wire input terminal.
In some embodiments of the disclosure, the gardening tool also includes a wheeled carrier. The electric motor, controller, and conversion switch are mounted on the wheeled carrier.
In some embodiments of the disclosure, the plug assembly includes a main plug and a conversion plug. The main plug is electrically connected to the conversion switch, and the conversion plug is configured to be detachably connected to the main plug.
In some embodiments of the disclosure, the wheeled carrier is arranged with a storage portion for storing the conversion plug. When the conversion plug is stored in the storage portion, the conversion can be switched from position b to position a. When the conversion plug is removed from the storage portion, the conversion can be switched from position a to position b.
In some embodiments of the disclosure, the storage portion includes a storage slot and a flip cover. The flip cover is configured to open or close the storage slot. The flip cover is arranged with a hanger for fixing the conversion plug. When the flip cover is closed and the conversion plug is mounted on the flip cover, the conversion switch can be switched from position b to position a. When the flip cover is open or the conversion plug is not mounted on the flip cover, the conversion switch can remain in the position two.
To achieve the above purpose and other related purposes, the disclosure also provides a high-pressure cleaning device. The high-pressure cleaning device including a motor pump assembly, a controller, a plug assembly and a conversion switch. The controller is electrically connected to the motor pump assembly, and the controller is used to control the operation of the motor pump assembly. The controller is arranged with a first live wire input terminal and a second live wire input terminal, with different rated input currents for the first and second live wire input terminals. The conversion switch is connected between the plug assembly and the controller. The conversion switch is configured to switch between the following two positions: position a and position b. In the position a, the conversion switch connects the live wire of the plug assembly to the first live wire input terminal. In the position b, where the conversion switch connects the live wire of the plug assembly to the second live wire input terminal.
The technical effect of the disclosure is: The disclosure equips the controller with two different specifications of live wire interfaces and controls the alternate connection and disconnection between the plug assembly and the two live wire interfaces through a conversion switch. This allows the electrical device to adapt to different types of external power sources, for example, it can adapt to both 120V 15 A and 120V 20 A power sources. This improves the compatibility of gardening tools with power sources, expands the application range of gardening tools, and reduces the cost of garden maintenance.
The objective of some embodiments of the disclosure is to provide a high-pressure cleaning device, which is no longer restricted by the installation position of the controller, thereby broadening the design direction of the internal layout of the high-pressure cleaning device.
To achieve the above objective, some embodiments of the disclosure provide a high-pressure cleaning device. The high-pressure cleaning device includes a controller, a motor assembly and a pump assembly fixedly connected to the motor assembly. The high-pressure cleaning device further includes an independent water cooling system and an independent air cooling system. The water cooling system is used to dissipate heat from the controller, and the air cooling system is used to dissipate heat from the motor assembly. The water cooling system includes a water inlet, a water-cooling channel assembly fixed inside the controller, a water outlet, and a pipe connected to the water inlet and water outlet respectively. The water outlet is connected to the pump assembly through a pipe, and the water inlet is connected to an external water source through a pipe. In this way, external water flows through pipes, passes through the water inlet, the water-cooling channel assembly, and the water outlet, and subsequently enters the pump assembly and flows out.
In some further embodiments of the disclosure, the controller includes a first housing and a second housing that are fixedly engaged with each other. The first housing and the second housing are assembled to form a mounting port and a receiving cavity connected to the mounting port. The second housing is arranged with a support platform extending outward from the mounting port. The water-cooling channel assembly is accommodated within the receiving cavity. One end of the water-cooling channel assembly passes through the mounting port and is fixedly connected to the support platform to expose the water inlet and the water outlet to the exterior of the controller.
In some further embodiments of the disclosure, the water-cooling channel assembly is arranged with a fixing portion, and the support platform is correspondingly arranged with a fixing slot. The fixing portion is aligned with the fixing slot to realize the fixed connection between the water-cooling channel assembly and the support platform by using a fastener passing through the fixing slot to coordinate with the fixing portion.
In some further embodiments of the disclosure, the controller also includes a circuit board and a heat-generating element, the circuit board and the heat-generating element are fixed inside the receiving cavity. The heat-generating element is mounted on the circuit board and forms a receiving area on the circuit board. The water-cooling channel assembly is fixed within the receiving area, and the water-cooling channel assembly is in contact with the heat-generating element.
In some further embodiments of the disclosure, the water-cooling channel assembly includes a base and a cover. A water flow chamber is recessed inside the base. The cover is mounted on the outside of the water flow chamber, and the cover is sealed to the base. The water flow chamber is connected to both the water inlet and the water outlet. External water enters the water flow chamber through the water inlet and then discharges from the water outlet. The water inlet and the water outlet are arranged on the same side of the water-cooling channel assembly.
In some further embodiments of the disclosure, the water flow chamber is arranged with a partition plate, and the partition plate is integrally formed with the base. The partition plate separates the water inlet from the water outlet, and forms a U-shaped water flow passage inside the water flow chamber. External water enters the water flow chamber through the water inlet, passes through the water flow passage, and then discharges through the water outlet.
In some further embodiments of the disclosure, the partition plate is arranged with a positioning portion, and the cover is arranged with a corresponding positioning slot. The positioning portion is aligned with the positioning slot, allowing a positioning component to pass through the positioning slot and be fixedly connected to the positioning portion. A first sealing element is fixed between the positioning component and the positioning slot to ensure a sealed connection between the cover and the base.
In some further embodiments of the disclosure, one side of the base facing the cover is arranged with a groove, and a second sealing element is accommodated within the groove. When the cover is fixedly connected to the base, the second sealing element is compressed by the cover and the base in different directions, ensuring that the second sealing element is sealed within the groove.
In some further embodiments of the disclosure, the motor assembly is arranged with an air inlet and an air outlet on opposite sides. A stator and a rotor are fixed inside the motor assembly. The stator is fixedly connected to the pump assembly. The rotor includes a rotating shaft passing through the stator. A fan is fixed to one end of the rotating shaft near the air inlet, and the other end of the rotating shaft passes through the air outlet and is connected to the pump assembly.
In some further embodiments of the disclosure, the pump assembly is arranged with a shaft hole, and an inner wall surface of the shaft hole is arranged with a slot. The end of the rotating shaft is arranged with a locking strip. When the rotating shaft is connected to the pump assembly, the locking strip is limited and accommodated within the slot.
The beneficial effects of some embodiments of the disclosure are as follows: By providing independent water cooling and air cooling systems to respectively dissipate heat from the controller and the motor assembly, the high-pressure cleaning device is no longer limited by the installation position of the controller, thereby broadening the design possibilities for the internal layout of the high-pressure cleaning device.
This arrangement allows for greater flexibility in the positioning of the controller within the high-pressure cleaning device, as it is no longer constrained to be near the motor or fan for cooling purposes. The independent water cooling system ensures that the controller can be placed in any location within the machine, without concern for airflow limitations. This design not only optimizes the internal structure of the machine but also enhances the efficiency of heat dissipation for both the controller and the motor assembly.
By separating the cooling systems, each component can operate at optimal performance levels without overheating. The water cooling system for the controller ensures that sensitive electronic components are kept at a stable temperature, which increases their lifespan and reliability. Meanwhile, the air cooling system for the motor ensures that the motor operates within safe temperature ranges, preventing damage from prolonged use or overexertion.
The dual cooling systems also contribute to the overall durability of the high-pressure cleaning device. The motor, which generates significant heat during operation, benefits from targeted air cooling, while the controller, which handles the machine's operations and electrical load, is protected by the water cooling system. This reduces the wear and tear on both components, extending the overall service life of the high-pressure cleaning device.
Furthermore, the modular design of the water cooling system, which includes components such as the water inlet, water outlet, and water-cooling channel assembly, makes it easier to maintain and replace individual parts if needed. This simplifies the servicing of the machine and reduces maintenance costs over time, as damaged or worn parts can be replaced without requiring extensive disassembly of the entire machine.
The innovative combination of air and water cooling systems in this high-pressure cleaning device represents a significant improvement over traditional cooling methods, which typically rely solely on air cooling through the motor's fan. By incorporating a water-cooling system for the controller, the design ensures more efficient heat dissipation, allowing for higher performance and more flexible design options for future high-pressure cleaning devices.
Finally, the improved design of the motor assembly, with its air inlet and air outlet positioned to maximize airflow, ensures that the motor operates smoothly and efficiently. The stator and rotor are securely housed, with the rotor's rotating shaft connected to a fan that enhances air circulation. This keeps the motor cool even during extended periods of use, ensuring the machine can handle heavy-duty cleaning tasks without the risk of overheating.
In addition, the integration of the locking mechanisms between the motor's rotating shaft and the pump assembly enhances the structural integrity and operational stability of the high-pressure cleaning device. The shaft hole in the pump assembly, with its inner wall slot and the locking strip on the rotating shaft, ensures that the components are securely connected. This design minimizes the risk of dislocation or misalignment during operation, particularly when the machine is subject to vibrations or prolonged usage. This precise locking system also aids in the overall efficiency of the high-pressure cleaning device, as it ensures that the mechanical components work in harmony without unnecessary wear or energy loss.
The use of sealing elements, such as the first and second sealing components in the water-cooling system, further contributes to the reliability of the machine. These seals prevent leakage of water within the cooling system, ensuring that the flow of water remains consistent and that none of the electrical components are exposed to moisture. This level of protection is critical for maintaining the safety and functionality of the machine, especially in environments where water and electricity are both in use. The sealing mechanisms also ensure the longevity of the water cooling system by preventing corrosion or damage to the internal components over time.
Another important advantage of the dual cooling systems is the ability to maintain the high-pressure cleaning device's performance across a variety of environments. Whether the machine is used in hot, humid conditions or in areas where the workload is particularly heavy, the separate cooling systems ensure that both the controller and motor can handle temperature increases without affecting the machine's performance. This adaptability makes the high-pressure cleaning device suitable for both household and industrial applications, providing a versatile solution for users with different cleaning needs.
The thoughtful arrangement of the components within the high-pressure cleaning device, including the modular water-cooling assembly and the well-ventilated motor housing, also makes the machine more compact without sacrificing performance. By allowing for more flexible placement of the controller, the internal space can be optimized, reducing the overall size and weight of the machine. This makes the high-pressure cleaning device more portable and easier to maneuver, which is particularly beneficial for users who need to clean large or hard-to-reach areas.
The versatility of the design is further enhanced by the compatibility of the machine with various cleaning attachments and tools. Since the core components, such as the motor and pump, are effectively cooled and protected, the high-pressure cleaning device can support a range of high-powered attachments, making it capable of handling tasks such as deep cleaning, pressure washing, and heavy-duty scrubbing. The machine's ability to remain cool and operate efficiently over extended periods makes it a reliable tool for both residential and commercial use.
In conclusion, the high-pressure cleaning device outlined in this disclosure offers a significant advancement in both design and functionality. By incorporating independent water and air cooling systems, it resolves the limitations of traditional high-pressure cleaning devices that rely solely on air cooling. This innovation not only allows for greater flexibility in the internal layout of the machine but also enhances its overall performance, durability, and usability across different environments. The combination of modular components, effective sealing systems, and adaptable cooling solutions ensures that the machine is well-equipped to meet the diverse cleaning needs of modern users.
The beneficial effects of some embodiments of the disclosure are as follows: The high-pressure cleaning device, through the provision of independent water cooling and air cooling systems, can respectively dissipate heat from the controller and the motor assembly. This arrangement eliminates the restrictions on the installation position of the controller, broadening the design possibilities for the internal layout of the high-pressure cleaning device.
Additionally, this innovation ensures that both the controller and the motor assembly can operate efficiently without overheating, even in different environments and for prolonged periods. This structure not only enhances the overall performance and durability of the high-pressure cleaning device but also provides flexibility in design, allowing for more compact and efficient configurations, which are beneficial for both household and industrial cleaning applications.
The purpose of the disclosure is to provide a flip cover reset structure that enables the automatic resetting of the flip cover when it is in the open position.
To achieve the above objective, the disclosure provides a flip cover reset structure, including a housing and a flip cover pivotally connected to the housing. A storage slot is recessed inside the housing, and the flip cover is configured to open or close the storage slot. One of the flip cover and the housing is arranged with a pivoting portion extending outward, the other is correspondingly arranged with a mounting portion. The pivoting portion and the mounting portion cooperate to realize the pivotal connection between the flip cover and the housing. An elastic structure is also arranged between the pivoting portion and the mounting portion. The elastic structure is configured to drive the flip cover to automatically close when it is in the open position. One of the flip cover and the housing is arranged with an magnetic attachment, and the other is correspondingly arranged with a metal component. The magnetic attachment and the metal component cooperate to ensure that the flip cover and the housing are attracted and close the storage slot.
As a further improvement of the disclosure, a side of the housing facing the flip cover is arranged with a double stop flange. The double stop flange is used to achieve a sealed connection between the flip cover and the housing after the flip cover is closed. The double stop flange is a notch formed in a sidewall of the storage slot.
As a further improvement of the disclosure, a pivot hole is arranged on the pivoting portion, and a rotating shaft passes through the pivot hole. The elastic structure cooperates with the rotating shaft to drive the flip cover to automatically close when the flip cover is in the open position.
As a further improvement of the disclosure, the elastic structure includes a first connecting portion connected to the pivoting portion, a second connecting portion connected to the mounting portion, and a third connecting portion sleeved on the rotating shaft. When the flip cover is opened, the first connecting portion is compressed by external force and moves toward the second connecting portion.
As a further improvement of the disclosure, the first connecting portion is L-shaped. The first connecting portion includes a first end connected to the third connecting portion and a second end perpendicular to the first end. The pivoting portion is arranged with a connecting hole, and the second end is rotatably accommodated within the connecting hole.
As a further improvement of the disclosure, the second connecting portion includes a third end connected to the third connecting portion and a fourth end perpendicular to the third end. The mounting portion is arranged with a mounting groove to accommodate the third connecting portion. The third end extends out of the mounting groove to expose the fourth end outside the mounting portion.
As a further improvement of the disclosure, two first connecting portions, two second connecting portions, and two third connecting portions are symmetrically arranged. The two fourth ends are connected to combine the two second connecting portions into a U-shape. A protrusion is arranged on the mounting groove. the protrusion is positioned between the two second connecting portions to prevent a offset to the second connecting portion.
As a further improvement of the disclosure, the housing is recessed with a receiving groove to accommodate the magnetic attachment. The receiving groove is arranged on one side of the storage slot, and the mounting portion is arranged on the other side of the storage slot. The receiving groove closely attached to the storage slot.
As a further improvement of the disclosure, the flip cover is arranged with a metal hole, and the metal component is fixed inside the metal hole. When the flip cover closes the storage slot, the metal component and the magnetic attachment attract and contact each other.
The purpose of the disclosure is also to provide a high-pressure cleaning device that can automatically reset the flip cover when the cover of the storage portion is opened.
To achieve the above objective, the disclosure provides a high-pressure cleaning device that includes a housing and a storage portion arranged on the housing. The storage portion includes a storage slot and a flip cover. The flip cover is configured to open or close the storage slot. One of the flip cover or the housing is arranged with a pivoting portion extending outward, while the other is correspondingly arranged with a mounting portion. The pivoting portion and the mounting portion cooperate to realize the pivotal connection between the flip cover and the housing. An elastic structure is arranged between the pivoting portion and the mounting portion, and it is configured to automatically drive the flip cover to close when it is in the open position. One of the flip cover and the housing is also fixed with an magnetic attachment, and the other is correspondingly arranged with a metal component. The magnetic attachment and the metal component cooperate to attract and secure the flip cover to the housing, closing the storage slot.
As a further improvement of the disclosure, the high-pressure cleaning device also includes a conversion plug accommodated in the storage portion. The conversion plug is fixed to the flip cover and can be installed or removed by opening or closing the storage slot. The flip cover is arranged with a hanger for securing the conversion plug, and the conversion plug is correspondingly arranged with a fixing slot with a fastener passing through it. The fastener and the hanger cooperate to achieve the fixed connection between the conversion plug and the flip cover.
As a further improvement of the disclosure, a side of the housing facing the flip cover is arranged with a double stop flange. The double stop flange is used to achieve a sealed connection between the flip cover and the housing after the flip cover is closed. The double stop flange is a notch formed in a sidewall of the storage slot.
As a further improvement of the disclosure, a pivot hole is arranged on the pivoting portion, and a rotating shaft passes through the pivot hole. The elastic structure cooperates with the rotating shaft to automatically close the flip cover when the flip cover is in the open position.
The beneficial effect of the disclosure is that the flip cover reset structure realizes the automatic reset function of the flip cover by setting up an elastic structure, magnetic attachment, and metal component between the flip cover and the housing.
It should be noted that, expressions “front”, “rear”, “left” and “right” indicating directions in the disclosure are general terms for various directions of garden tools by those skilled in the art, which means that a forward direction of the garden tool is front, and a reverse direction is rear. A left hand side of an operator when riding on the garden tool is a left side, and a right hand side of an operator when riding on the garden tool is a right side.
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The clamping mechanism may include, for example, a bolt 163 and a hand-adjustable nut 164. The bolt 163 passes through the first locking block 161 and the second locking block 162 in sequence. The head of the bolt 163 presses against the first locking block 161, and the hand-adjustable nut 164 is connected to the bolt 163 and presses against the second locking block 162. When the second section 142 is in the expanded position, the hand-adjustable nut 164 can be tightened to keep the second section 142 and the first section 141 relatively fixed, facilitating the user's pushing of the high-pressure cleaning device. When the second section 142 needs to be folded, the hand-adjustable nut 164 can be loosened, allowing the second section 142 to swing freely relative to the first section 141. In a further embodiment, toothed surfaces can be arranged on the relative end faces of the first locking block 161 and the second locking block 162 to further increase the relative motion resistance when they are clamped.
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Users can freely control the flow direction of the cleaning water according to their needs. In a specific embodiment, the valve assembly 30 can be either a manual valve or an electric valve. When using a manual valve, the valve assembly 30 can be mounted on the handle arm 14 in a position that can be reached by the user. Specifically, the valve assembly 30 can be mounted on the second section 142, as shown by the solid line in
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In a specific embodiment, the nozzle assembly includes a rotating member 55 and a nozzle 57. The rotating member 55 is rotatably connected to the cover shell 51 or the carrier. A flow passage 56 is arranged inside the rotating member 55. The nozzle 57 is mounted on the rotating member 55, and the nozzle 57 is in communication with the flow passage 56. The flow passage 56 is in communication with the second liquid outlet. Specifically, a fixed pipe joint 53 is arranged on the cover shell 51 or the carrier. One end of the flow passage 56 of the rotating member 55 is in communication with the fixed pipe joint 53, and the other end of the fixed pipe joint 53 is in communication with the second liquid outlet through a pipeline. A mechanical sealing unit 54 is arranged between the rotating member 55 and the fixed pipe joint 53. The nozzle 57 is configured so that when water flow is ejected from the nozzle 57, the reaction force produced by the water flow against the nozzle 57 can drive the rotating member 55 to rotate. It should be understood that the driving method of the rotating member 55 is not unique. For example, in some other embodiments, the rotating member 55 can also be driven by an electric motor.
In summary, the high-pressure cleaning device of the disclosure integrates a high-pressure cleaning device, a high-pressure water gun 40 and a floor brush 50 on one carrier. Users can control the operation of the cleaning water gun or floor brush 50 according to actual needs. When users operate the floor brush 50 for cleaning, they only need to provide the pushing force for the carrier to move, without having to bear the weight of the high-pressure water gun 40 and floor brush 50. This greatly reduces the user's workload, improves comfort, and thus can adapt to large-scale cleaning tasks. The handle arm 14 of the disclosure can be folded and expanded. When the second section 142 is expanded, the handle arm 14 has sufficient length for the user to push while standing, and when the second section 142 is folded, it can reduce the overall height of the high-pressure cleaning device, facilitating storage and transportation. The disclosure adopts an AC pump or DC pump which can not only ensure sufficient power output, but also avoid the noise and pollution problems caused by internal combustion engines. Users can remove the auxiliary bracket 60 from the frame 10 as a whole, and the power unit can be used independently or adapted to other machines, further expanding the applicable scenarios of the high-pressure cleaning device.
The electrical device provided by the disclosure includes, but is not limited to, electric motors, water pumps, or fans, and can even be lighting devices or heating devices. The disclosure is combined with a gardening tool, specifically a high-pressure cleaning device, to explain the technical solution in detail. It should be understood that when the disclosure is applied to gardening tools, the applicable products include, but are not limited to, lawn mowers, sweepers, snow blowers, chain saws, blowers, and others.
Please refer to
It should be noted that the power input terminals of the controller 70a in this disclosure include, but are not limited to, the first live wire input terminal L1 and the second live wire input terminal L2. When the product needs to be compatible with more types of power sources, more live wire input terminals of different specifications can be added, such as a third live wire input terminal, a fourth live wire input terminal, and so on.
The disclosure sets up two different specifications of live wire interfaces in the controller 70a and controls the alternate connection and disconnection between the plug assembly 50a and the two live wire interfaces through the conversion switch 60a. This allows the electrical device to adapt to different types of external power sources, for example, it can adapt to both 120V 15 A and 120V 20 A power sources. This improves the compatibility of gardening tools with power sources, expands the application range of gardening tools, and eliminates the need to replace the entire machine to adapt to different power sources, thus reducing the cost of garden maintenance.
Correspondingly, the controller 70a can switch to different working states (such as the output current of the controller 70a) according to different power input types. The specific implementation method is as follows:
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The controller 70a also includes an AC to DC conversion unit 72a. The AC to DC conversion unit 72a is connected in series with the main circuit 71a, specifically including: EMI filter, rectifier bridge, PFC circuit, and rectification filter circuit.
In a specific embodiment, the controller 70a can also include a drive circuit, a power inverter 74a, a current detection unit, a DC/DC 15V output circuit, a 5V output circuit, a 3.3V output circuit, sampling resistors, and an operation circuit, etc. A control signal output terminal of a main control chip 73a is electrically connected to a control signal input terminal of a power inverter 74a through the drive circuit. The current detection unit is connected between the power inverter 74a and the main control chip 73a, so that the main control chip 73a can obtain the working status of the power inverter 74a. The DC/DC 15V output circuit is used to supply power to the drive circuit. The 3.3V output circuit is used to supply power to the main control chip 73a. The sampling resistors and the operation circuit are used for the main control chip 73a to obtain the working status of the main circuit 71a in real-time. The power inverter 74a is electrically connected to the electrical appliance.
Please refer to
After the motor starts running, the bus current will flow through the sampling resistor to generate a voltage signal for the operation circuit. The operation circuit amplifies the collected voltage and provides it to the main control chip 73a for internal operation and calculation, calculating whether the bus current is within the set range. By continuously monitoring the motor status and output, comparing the bus current and speed feedback signals with the set values, and adjusting the current and output, precise current control is achieved. This is the working flow when the plug assembly is connected to L1 (first live wire input terminal). Therefore, at this time, the bus current does not flow through the current sensor CT1, and point A of the current detection circuit 75a outputs no signal, indicating a 0 signal. This indicates that the A point control pin of the main control chip 73a detects no signal, i.e., a 0 signal.
In practical applications, rules can be pre-programmed into the main control chip 73a. For example: a 0 signal adjusts 20 A current, which corresponds to the L1 (first live wire input terminal) channel, and a 1 signal adjusts 15 A current, which corresponds to the L2 (second live wire input terminal) channel.
When the plug assembly is connected to L2 (second live wire input terminal), the input voltage first passes through the primary winding of the CT1 current sensor. This generates an induced voltage in the secondary winding of the current sensor. This voltage is rectified by diode D1, then filtered by C1 and C2. The resulting voltage at point A is transmitted to the main control chip 73a for identification. The presence of voltage at point A signifies a 1 signal, indicating that this channel is configured for 15 A current. The input voltage passes through the F2 fuse, following a process similar to when connected to L1. The input voltage goes through the EMI filter, then proceeds to the rectifier bridge for rectification. Afterward, it enters the PFC circuit for boosting, and the boosted voltage is filtered by the rectification filter circuit for filtering. One path provides stable power to the DC/DC 15V output, the 5V output circuit and 3.3V output circuit to power the main control chip 73a. The other path provides the primary power to the power inverter 74a. After the main control chip 73a powers on and completes self-checks, it sends drive signals to the drive circuit. These signals are amplified by the drive circuit and subsequently drive the power inverter 74a to work. The power inverter 74a then converts power voltage into three-phase AC. The main control chip 73a calculates the appropriate phase and amplitude based on the rotor position information, and inputs the AC with specific timing to the motor's phase coils. This generates the required magnetic field. The main control chip 73a will dynamically adjust the phase and amplitude of the three-phase current to achieve alignment between the magnetic field and the rotor magnetic field, thereby achieving the best torque output and speed control. This way, the phase and magnitude of the current can be adjusted to control the motor's speed and direction, thus achieving control over the current magnitude. After the motor starts running, the bus current will flow through the sampling resistor to generate a voltage signal for the operation circuit. The operation circuit amplifies the collected voltage and provides it to the main control chip 73a for internal operation and calculation, calculating whether the bus current is within the set range. By continuously monitoring the motor status and output, comparing the bus current and speed feedback signals with the set values, and adjusting the current and output, precise current control is achieved.
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The wheeled carrier 10a in the illustrated embodiment is a non-powered carrier that relies on the user's pushing to move. It should be understood that in some other embodiments, the wheeled carrier 10a can also be equipped with independent walking drive elements. When the wheeled carrier 10a is equipped with walking drive elements, its power structure can be similar to that of the motor pump assembly 30a to achieve compatibility with different types of power sources.
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In a specific embodiment, the first neutral wire terminal 532a is electrically connected to the neutral wire port of the controller 70a through a wire. The conversion plug 52a is configured so that when the conversion plug 52a is connected to the main plug 51a, it can shield the first set of connecting terminals 53a and expose the second set of connecting terminals 54a.
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It should be noted that the conversion plug 52a solution is just one of the preferred embodiments of the disclosure. In some other embodiments, it's possible not to set up a conversion plug 52a, but instead set up multiple wired plugs connected to the conversion switch 60a. As shown in
It should be understood that the number of conversion plugs 52a is not limited to one. For example, when the product needs to be compatible with more types of socket panels, the number of conversion plugs 52a can be multiple. Users can choose one of the conversion plugs 52a to connect with the main plug 51a as needed. Correspondingly, the controller 70a can have multiple live wire input terminals, and the conversion switch 60a can control the connection between various plug types and different live wire input terminals.
Please refer to
It should be understood that the disclosure has implemented a fool-proof design for the conversion switch 60a through the constraint mechanism. That is, only when the plug assembly 50a is in state one will the conversion switch 60a be in position a, and similarly, only when the plug assembly 50a is in state two will the conversion switch 60a be in position b. This can prevent mismatch between the power source connected to the plug and the type of live wire interface of the controller 70a. The specific implementation method is as follows:
Please refer to
In a further embodiment, a start-stop switch 23a for controlling the start and the stop of the motor pump assembly 30a can also be arranged on the housing 20a.
Specifically, the storage portion includes a storage slot 21a and a flip cover 22a. The flip cover 22a is configured to open or close the storage slot 21a. The flip cover 22a is arranged with a hanger for fixing the conversion plug 52a. The trigger lever of the conversion switch 60a protrudes into the storage slot 21a. When the flip cover 22a is closed and the conversion plug 52a is mounted on the flip cover 22a, the conversion switch 60a can be switched from position b to position a. When the flip cover 22a is open or the conversion plug 52a is not mounted on the flip cover 22a, the conversion switch 60a can remain in the position b.
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It should be understood that the above implementation method of the constraint mechanism is not the only one. When the specific implementation method of the plug assembly 50a changes, the implementation method of the constraint mechanism can also be adjusted accordingly. For example, when the plug assembly 50a adopts the scheme shown in
In summary, the disclosure sets up two different specifications of live wire interfaces in the controller 70a and controls the alternate connection and disconnection between the plug assembly 50a and the two live wire interfaces through the conversion switch 60a. This allows the electrical device to adapt to different types of external power sources, improving the compatibility of gardening tools with power sources, expanding the application range of gardening tools, and eliminating the need to replace the entire machine to adapt to different power sources, thus reducing the cost of garden maintenance. The disclosure implements a fool-proof design for the conversion switch 60a through the constraint mechanism. That is, only when the plug assembly 50a is in state one will the conversion switch 60a be in the position a, and similarly, only when the plug assembly 50a is in state two will the conversion switch 60a be in the position b. This can prevent mismatch between the power source connected to the plug and the type of live wire interface of the controller 70a.
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Specifically, the water cooling system 2b includes a water cooling channel assembly 20b fixed inside the controller 70b, a water inlet 21b and a water outlet 22b arranged on the same side of the water cooling channel assembly 20b, and pipes 23b connected to the water inlet 21b and the water outlet 22b respectively. The water outlet 22b is connected to the motor pump assembly 30b through the pipe 23b, and the water inlet 21b is connected to external water flow through the pipe 23b, so that the external water flow enters the motor pump assembly 30b and flows out after passing through the water inlet 21b, the water cooling channel assembly 20b, and the water outlet 22b through the pipe 23b. In other words, the external water flow passes through the controller 70b before entering the motor pump assembly 30b, to dissipate heat from the controller 70b. Preferably, connectors 24b are arranged between the water inlet 21b and water outlet 22b and the pipes 23b, and they are connected by the connectors 24b. By setting the water inlet 21b and water outlet 22b on the same side, the internal structure of the high-pressure cleaning device 1b is more compact.
The water cooling channel assembly 20b includes a base 201b and a cover 202b. A water flow cavity 203b is recessed inside the base 201b. The cover 202b is mounted on the outside of the water flow cavity 203b, and the cover 202b is sealed to the base 201b. The water flow cavity 203b is connected to the water inlet 21b and the water outlet 22b. The external water flow enters the water flow cavity 203b from the water inlet 21b and then discharges from the water outlet 22b. Specifically, a partition plate 204b integrally formed with the base 201b is positioned inside the water flow cavity 203b. The partition plate 204b separates the water inlet 21b and the water outlet 22b, and forms a U-shaped water flow path inside the water flow cavity 203b. The external water flow enters the water flow cavity 203b from the water inlet 21b, passes through the U-shaped water flow channel, and discharges from the water outlet 22b. In this way, the direction of water flow in the water cooling channel assembly 20b is defined, making the water flow along the inner wall surface of the water flow cavity 203b. Preferably, the water cooling channel assembly 20b is designed to transfer the temperature of the water flow, effectively cooling its surroundings by water cooling.
A positioning part 2041b is arranged on the partition plate 204b, and a corresponding positioning groove 2021b is mounted on the cover 202b. The positioning part 2041b and the positioning groove 2021b are aligned with each other, so that a positioning member 2022b can pass through the positioning groove 2021b and be fixedly connected to the positioning part 2041b. A first sealing member 2023b is fixed between the positioning member 2022b and the positioning groove 2021b to achieve a sealed connection between the cover 202b and the base 201b. This not only increases the fixation tightness between the cover 202b and the base 201b, but also prevents water from flowing out from the connection seam between the cover 202b and the base 201b.
Optionally, a recess 2011b is mounted on the side of the base 201b facing the cover 202b, and a second sealing member 2012b is accommodated in the recess 2011b. When the cover 202b is fixedly connected to the base 201b, the second sealing member 2012b is compressed by the cover 202b and the base 201b in different directions, sealing it within the recess 2011b. This seals the entire periphery of the water flow cavity 203b to prevent water from flowing out from the connection seam between the cover 202b and the base 201b. Of course, either one or both of the first sealing member 2023b and the second sealing member 2012b can be set, without limitation, as long as the sealed fixation between the cover 202b and the base 201b is ensured.
The controller 70b includes a first shell 701b and a second shell 702b that are snap-fitted and fixed to each other. After assembly, the first shell 701b and second shell 702b form a mounting opening 703b and a receiving cavity 704b connected to the mounting opening 703b. The second shell 702b has a support platform 7021b extending outward from the mounting opening 703b. The water cooling channel assembly 20b is accommodated within the receiving cavity 704b, with one end passing through the mounting opening 703b and fixedly connected to the support platform 7021b, exposing the water inlet 21b and water outlet 22b outside the controller 70b. By setting the water cooling channel assembly 20b inside the controller 70b, heat dissipation of the controller 70b is achieved through external water flow without increasing the volume of the controller 70b, ensuring that the internal layout of the high-pressure cleaning device is not affected. In this embodiment, the first shell 701b has a snap-fit part 7010b, and the second shell 702b has a corresponding snap-fit block 7020b. The snap-fit part 7010b and the snap-fit block 7020b cooperate with each other to snap-fit and fix the first shell 701b and the second shell 702b.
Specifically, the water cooling channel assembly 20b comprises a fixing part 205b, and the support platform 7021b has a corresponding fixing slot 7022b. The fixing part 205b and the fixing slot 7022b are aligned with each other, enabling a fastener 7023b passing through the fixing slot 7022b to cooperate with the fixing part 205b, achieving fixed connection between the water cooling channel assembly 20b and the support platform 7021b. In other words, the water cooling channel assembly 20b is fixed to the shell of the controller 70b through the fixing part 205b and the fixing slot 7022b. Preferably, fixing parts 205b are positioned at both ends of the water cooling channel assembly 20b, with corresponding fixing slots 7022b set at the corresponding positions on the shell of the controller 70b, to fix the water cooling channel assembly 20b to the controller 70b.
The controller 70b also includes a circuit board 705b and a heat-generating element 706b. The circuit board 705b and the heat-generating element 706b are fixed inside the receiving cavity 704b. The heat-generating element 706b is assembled on the circuit board 705b and forms a receiving area on the circuit board 705b. The water cooling channel assembly 20b is fixed in the receiving area, and the water cooling channel assembly 20b is in contact with the heat-generating element 706b. In other words, the water cooling channel assembly 20b mainly dissipates heat for the circuit board 705b and the heat-generating element 706b. In this embodiment, there are multiple heat-generating elements 706b, with the heat-generating element 706b with the highest heat generation power placed in close contact with the water cooling channel assembly 20b to maximize heat dissipation efficiency.
The high-pressure cleaning device 1b also includes an air cooling system 3b. The air cooling system 3b is mounted on the motor pump assembly 30b. The motor pump assembly 30b includes a fixedly connected motor assembly 301b and pump assembly 302b. The air cooling system 3b is mounted on the motor assembly 301b, and the air cooling system 3b is used to dissipate heat from the motor assembly 301b. The pump assembly 302b is connected to the water outlet 22b through the pipe 23b, and the pump assembly 302b is exposed to the outside of the high-pressure cleaning device 1b to discharge the water flow entering the pump assembly 302b.
The motor assembly 301b includes a motor shell 300b, an air inlet 303b and an air outlet 304b, the air inlet 303b and the air outlet 304b are arranged on opposite sides of the motor shell 300b. A stator 305b and a rotor 306b are fixed inside the motor assembly 301b. The stator 305b is fixedly connected to the pump assembly 302b. The rotor 306b includes a rotating shaft 3061b passing through the stator 305b. One end of the rotating shaft 3061b near the air inlet 303b is fixed with a fan 307b, while the other end passes through the air outlet 304b and connects to the pump assembly 302b. In other words, the air outlet 304b directly faces the pump assembly 302b. The motor assembly 301b rotates the fan 307b to make the airflow enter the motor assembly 301b from the air inlet 303b and discharge from the air outlet 304b.
The pump assembly 302b has an axle hole 3021b, and a groove 3022b is arranged on the inner wall surface of the axle hole 3021b. The end of the rotating shaft 3061b has a spline 3062b. When the rotating shaft 3061b is connected to the pump assembly 302b, the spline 3062b is limitedly accommodated in the groove 3022b to prevent the rotating shaft 3061b from rotating freely inside the axle hole 3021b.
In summary, the high-pressure cleaning device 1b of this disclosure comprises mutually independent water cooling system 2b and air cooling system 3b to dissipate heat from the controller 70b and motor assembly 301b respectively. As a result, the installation position of the controller 70b is no longer limited, thereby broadening the design direction for the internal layout of the high-pressure cleaning device 1b.
Referring to
Specifically, the storage portion includes a storage slot 21c and a flip cover 22c. The flip cover 22c is assembled to be able to open or close the storage slot 21c. The conversion plug 52c is arranged on the flip cover 22c, and the conversion plug 52c is installed or removed by opening or closing the storage slot 21c. The flip cover 22c is arranged with a hanger 221c for fixing the conversion plug 52c. The conversion plug 52c is correspondingly arranged with a fixing slot 521c and a fastener 522c passing through the fixing slot 521c. The fastener 522c cooperates with the hanger 221c to achieve a fixed connection between the conversion plug 52c and the flip cover 22c.
To enable the flip cover 22c to automatically reset after opening, restoring the state of closing the storage slot 21c, this disclosure provides a flip cover reset structure that can automatically reset after the flip cover 22c is opened. For ease of understanding, it will be explained in conjunction with the high-pressure cleaning device 1c. However, it should be known that the flip cover reset structure is not only applicable to high-pressure cleaning devices but can be adapted to most tools that need automatic reset.
One of the flip cover 22c and the housing 20c is arranged with an outwardly extending pivoting portion 222c, and the other of the flip cover 22c and the housing 20c is correspondingly arranged with a mounting portion 201c. The pivoting portion 222c is arranged with a pivot hole 2220c and a rotating shaft 2221c passing through the pivot hole 2220c. The rotating shaft 2221c cooperates with the mounting portion 201c to achieve a pivoting connection between the flip cover 22c and the housing 20c. An elastic structure 223c is also arranged between the pivoting portion 222c and the mounting portion 201c. The elastic structure 223c is configured to drive the flip cover 22c to close automatically when the flip cover 22c is in an open state. The elastic structure 223c is preferably a torsion spring. After opening the flip cover 22c, the torsion spring drives the flip cover 22c to close automatically through torsional force, thereby achieving the reset of the flip cover 22c. In this embodiment, the flip cover 22c is integrally formed with a pivoting portion 222c extending outward, and the housing 20c is arranged with a mounting portion 201c, to achieve the pivoting connection between the flip cover 22c and the housing 20c through the rotating shaft 2221c and the elastic structure 223c set between the flip cover 22c and the housing 20c.
The elastic structure 223c includes a first connecting portion 2231c connected to the pivoting portion 222c, a second connecting portion 2232c connected to the mounting portion 201c, and a third connecting portion 2233c fitted on the rotating shaft 2221c. When the flip cover 22c is opened, the first connecting portion 2231c is compressed under external force and moves towards the side of the second connecting portion 2232c. After losing the external force, the elastic structure 223c is driven by its own torsional force, and the first connecting portion 2231c moves towards the side away from the second connecting portion 2232c, thereby driving the flip cover 22c to reset.
Specifically, the first connecting portion 2231c is L-shaped and includes a first end 22311c connecting the third connecting portion 2233c and a second end 22312c perpendicular to the first end 22311c. The pivoting portion 222c is arranged with a connecting hole 2222c, and the second end 22312c is rotatably accommodated in the connecting hole 2222c. The second connecting portion 2232c includes a third end 22321c connecting the third connecting portion 2233c and a fourth end 22322c perpendicular to the third end 22321c. The mounting portion 201c is arranged with a mounting groove 2010c for accommodating the third connecting portion. The third end 22321c extends out of the mounting groove 2010c to expose the fourth end 22322c outside the mounting portion 201c. Two first connecting portions 2231c, second connecting portions 2232c, and third connecting portions 2233c are arranged and symmetrically arranged. The two fourth ends 22322c are connected to each other to make the two second connecting portions 2232c combined into a U-shape. The mounting groove 2010c is arranged with a protrusion 2011c located between the two second connecting portions 2232c to prevent the second connecting portion 2232c from being displaced. Because the housing 20c does not move when the flip cover 22c is opened or closed, the second connecting portion 2232c is fixed to the mounting portion 201c in different directions through the fourth end 22322c and the protrusion 2011c, so that the second connecting portion 2232c will not move due to the opening or closing of the flip cover 22c.
One of the flip cover 22c and the housing 20c is arranged with an magnetic attachment 202c. The magnetic attachment 202c and the mounting portion 201c are respectively mounted on opposite sides of the storage slot 21c. The other of the flip cover 22c and the housing 20c is correspondingly arranged with a metal component 224c. The magnetic attachment 202c cooperates with the metal component 224c to adsorb the flip cover 22c and the housing 20c together and close the storage slot 21c. That is to say, in the process of automatic reset of the flip cover 22c under the torsional force of the elastic structure 223c, an adsorption force is added. While ensuring that the flip cover 22c can be fixed to the housing 20c through the adsorption force, it also speeds up the reset time. The magnetic attachment 202c is preferably a magnet to adsorb most metal objects. In this embodiment, the magnetic attachment 202c is fixed on the housing 20c, and the metal component 224c is mounted on the flip cover 22c, so that the flip cover 22c and the housing 20c are adsorbed together and the storage slot 21c is closed through the cooperation of the magnetic attachment 202c and the metal component 224c.
Specifically, the housing 20c is recessed with an accommodating groove 203c for accommodating the magnetic attachment 202c. The accommodating groove 203c is arranged opposite to the mounting portion 201c and close to the storage slot 21c. By setting the accommodating groove 203c and the mounting portion 201c on both sides of the storage slot 21c, and each of the accommodating groove 203c and the mounting portion 201c corresponding to a force acting on the reset of the flip cover 22c, the reset process is simpler, and the fixing surface between the flip cover 22c and the housing 20c is larger, making the fixing more secure.
The flip cover 22c is arranged with a metal hole 225c, and the metal component 224c is fixed in the metal hole 225c. When the flip cover 22c closes the storage slot 21c, the metal component 224c and the magnetic attachment 202c mutually attract and abut.
A side of the housing 20c facing the flip cover 22c is also arranged with a double stop flange 204c. The double stop flange 204c is used to achieve a sealed connection between the flip cover 22c and the housing 20c after the flip cover 22c is closed. Through the design of the double stop flange 204c, even on rainy days, rainwater will not splash into the interior of the housing 20c, damaging the components stored in the storage slot 21c, such as the conversion plug 52c in this embodiment. In this embodiment, the flip cover 22c is also correspondingly arranged with the double stop flange 204c to ensure the sealed connection between the flip cover 22c and the housing 20c.
In summary, the flip cover reset structure and high-pressure cleaning device of this disclosure achieve the automatic reset function of the flip cover 22c by setting the elastic structure 223c, magnetic attachment 202c, and metal component 224c between the flip cover 22c and the housing 20c. At the same time, by setting the double stop flange 204c on the housing 20c, the sealed connection between the flip cover 22c and the housing 20c is ensured.
The foregoing description, for purpose of explanation, has been described with reference to specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings.
The embodiments were chosen and described in order to best explain the principles of the techniques and their practical applications. Others skilled in the art are thereby enabled to best utilize the techniques and various embodiments with various modifications as are suited to the particular use contemplated.
Although the disclosure and examples have been fully described with reference to the accompanying drawings, it is to be noted that various changes and modifications will become apparent to those skilled in the art. Such changes and modifications are to be understood as being included within the scope of the disclosure and examples as defined by the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202311317790.1 | Oct 2023 | CN | national |
| 202322737404.6 | Oct 2023 | CN | national |
| 202311387529.9 | Oct 2023 | CN | national |
| 202322863724.6 | Oct 2023 | CN | national |
| 202323261391.6 | Nov 2023 | CN | national |
| 202323265129.9 | Nov 2023 | CN | national |
