Patent Application
20210129190
Embodiments of the present disclosure relate to a handheld high-pressure cleaning machine, and in particular, to the position of a battery pack mounting portion of a handheld high-pressure cleaning machine.
A cleaning device is configured to clean stains such as muds, oil stains, leaves, and dust on the surface of an object by using water pressure. There are a variety of cleaning devices. One common cleaning device is a seat-type cleaning machine. However, the seat-type cleaning machine is poorly portable and can only be used in very limited scenarios and places. A user cannot perform cleaning anytime and anywhere.
To meet requirements that the user can perform cleaning conveniently and carry the cleaning machine easily at home or outdoors, currently, a handheld high-pressure cleaning machine powered by a direct current battery pack is commercially available. However, the high-pressure cleaning machine configured with a single battery pack has some problems. On one hand, the capacity of the battery pack is insufficient. On the other hand, other functional components matching the single battery pack cannot provide relatively high water flow and water outlet pressure. As a result, the cleaning performance of the cleaning machine cannot meet the requirements of the user.
Therefore, it is necessary to provide a novel handheld high-pressure cleaning machine, to resolve the foregoing problems.
To overcome disadvantages in the prior art, a problem to be resolved by embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine with high power supply.
A technical solution used by the embodiments of the present disclosure to resolve the problem of the prior art is to provide a handheld high-pressure cleaning machine, including: a main machine housing, mounted or integrally formed with a battery pack mounting portion, where the battery pack mounting portion is configured to allow detachable attachment of a battery pack; a liquid outlet, disposed at a free end of the main machine housing; a first handle, to be held by an operator, where the first handle is mounted or integrally formed on the main machine housing and is disposed at an end away from the liquid outlet; a motor, disposed in the main machine housing, where the battery pack is capable of supplying power to the motor, to supply a driving force for the handheld high-pressure cleaning machine to operate; and a pump, driven by the motor to output a cleaning liquid, where
the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack connected to the first battery pack mounting portion and a second battery pack connected to the second battery pack mounting portion; the center of gravity G of the handheld high-pressure cleaning machine is located between the first handle and the liquid outlet, so that the first battery pack and the second battery pack are configured between the liquid outlet and the first handle in a manner that a ratio Q of a distance D between the center of the first handle and the center of gravity G of the handheld high-pressure cleaning machine to a distance H between the center of gravity G of the handheld high-pressure cleaning machine and the liquid outlet in the longitudinal direction is less than 1.
In an implementation, the ratio Q is greater than or equal to 30% and less than or equal to 80%.
In an implementation, the main machine housing includes a main body portion, the motor and the pump are both located in the main body portion, the main body portion and the first handle cooperate with each other to form a mounting space, and the two battery pack mounting portions are both located in the mounting space.
In an implementation, the main machine housing further includes a liquid outlet pipe, the liquid outlet pipe is disposed on a side of the main body portion that is away from the first handle, and the liquid outlet is disposed at a free end of the liquid outlet pipe.
In an implementation, the handheld high-pressure cleaning machine includes a liquid inlet joint provided with a liquid inlet, the liquid inlet is in communication with the pump, and the first battery pack and the second battery pack are disposed between the liquid inlet joint and the first handle and located below the main body portion.
In an implementation, the first handle is closer to the two battery pack mounting portions than the liquid outlet.
In an implementation, the motor, the first battery pack, and the second battery pack form an energy component, and in the longitudinal direction, and the energy component is placed on a relatively rear side of the handheld high-pressure cleaning machine.
In view of this, one of the objectives of the embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine with high power supply.
To achieve the foregoing objective, a technical solution used by the embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine, including: a main machine housing, mounted or integrally formed with a battery pack mounting portion, where the battery pack mounting portion is configured to allow detachable attachment of a battery pack; a liquid outlet, provided in the main machine housing; a first handle, to be held by an operator, where the first handle is mounted or integrally formed on the main machine housing and is disposed at an end away from the liquid outlet; a motor, disposed in the main machine housing, where the battery pack is capable of supplying power to the motor, to supply a driving force for the handheld high-pressure cleaning machine to operate; and a pump, driven by the motor to output a cleaning liquid, where the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, the battery pack includes a first battery pack connected to the first battery pack mounting portion and a second battery pack connected to the second battery pack mounting portion, and the first battery pack mounting portion and the second battery pack mounting portion are configured in a manner that the first battery pack and the second battery pack can be respectively disposed on left and right sides of the main machine housing.
In an implementation, the main machine housing includes a main body portion, the motor and the pump are both located in the main body portion, the main body portion is provided with a middle plane, and the main body portion is disposed approximately symmetrically about the middle plane.
In an implementation, the first battery pack mounting portion and the second battery pack mounting portion are symmetrical about the middle plane.
In an implementation, the two battery pack mounting portions are disposed in parallel on left and right sides of the middle plane in a manner that a distance W2 between a leftmost edge of the first battery pack mounting portion and a rightmost edge of the second battery pack mounting portion in the transverse direction is not greater than a width W1 of the main body portion in the transverse direction.
In an implementation, the first battery pack and the second battery pack are slidably attached to corresponding battery pack mounting portions respectively, and directions of slidable attachment of the first battery pack and the second battery pack are the same.
In an implementation, each of the first battery pack mounting portion and the second battery pack mounting portion is provided with an opening for slidable attachment of a corresponding battery pack, and the opening is provided facing downward.
To overcome disadvantages in the prior art, a problem to be resolved by embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine with high power supply.
A technical solution used by the embodiments of the present disclosure to resolve the problem of the prior art is to provide a handheld high-pressure cleaning machine, including: a main machine housing, mounted or integrally formed with a battery pack mounting portion, where the battery pack mounting portion is configured to allow detachable attachment of a battery pack; a liquid outlet, provided in the main machine housing; a first handle, to be held by an operator, where the first handle is mounted or integrally formed on the main machine housing and is disposed at an end away from the liquid outlet; a motor, disposed in the main machine housing, where the battery pack is capable of supplying power to the motor, to supply a driving force for the handheld high-pressure cleaning machine to operate; and a pump, driven by the motor to output a cleaning liquid, where
the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack connected to the first battery pack mounting portion and a second battery pack connected to the second battery pack mounting portion;
the handheld high-pressure cleaning machine further includes a second handle, and the second handle cooperates with the first handle to implement two-hand operation of the handheld high-pressure cleaning machine; and
the center of gravity G of the handheld high-pressure cleaning machine is located between the first handle and the second handle, so that the first battery pack and the second battery pack are configured between the first handle and the second handle in a manner that a ratio K of a distance D between the center of gravity G of the handheld high-pressure cleaning machine and the center of the first handle to a straight-line distance L between the center of the first handle and the center of the second handle is within a range of greater than or equal to 35% and less than 50% in the longitudinal direction.
In an implementation, the first battery pack and the second battery pack are configured between the first handle and the second handle in a manner that the ratio K of the distance D between the center of gravity G of the handheld high-pressure cleaning machine and the center of the first handle to the straight-line distance L between the center of the first handle and the center of the second handle is within a range of greater than or equal to 35% and less than or equal to 45% in the longitudinal direction.
In an implementation, the second handle is disposed closer to the liquid outlet than the first handle.
In an implementation, the first battery pack is inserted into the first battery pack mounting portion in a manner that the center of gravity G1 of the first battery pack is located between the center of gravity G of the handheld high-pressure cleaning machine and the center of the first handle in the longitudinal direction.
In an implementation, the second battery pack is inserted in the second battery pack mounting portion in a manner that the center of gravity G2 of the second battery pack is located between the center of gravity G of the handheld high-pressure cleaning machine and the center of the first handle in the longitudinal direction.
To overcome disadvantages in the prior art, a problem to be resolved by embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine with high power supply.
A technical solution used by the embodiments of the present disclosure to resolve the problem of the prior art is to provide a handheld high-pressure cleaning machine, including: a main machine housing, mounted or integrally formed with a battery pack mounting portion, where the battery pack mounting portion is configured to allow detachable attachment of a battery pack; a liquid outlet, provided in the main machine housing; a first handle, to be held by an operator, where the first handle is mounted or integrally formed on the main machine housing and is disposed at an end away from the liquid outlet; a motor, disposed in the main machine housing, where the battery pack is capable of supplying power to the motor, to supply a driving force for the handheld high-pressure cleaning machine to operate; and a pump, driven by the motor to output a cleaning liquid, where the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack connected to the first battery pack mounting portion and a second battery pack connected to the second battery pack mounting portion; and
the positions of the first battery pack mounting portion and the second battery pack mounting portion are configured to enable lower surfaces of the two battery packs to be located in the same plane when the two battery packs are mounted on corresponding battery pack mounting portions.
To overcome disadvantages in the prior art, a problem to be resolved by embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine with high power supply.
In an implementation, the main machine housing includes a main body portion, the motor and the pump are both located in the main body portion, the main body portion is provided with a middle plane, the main body portion is disposed approximately symmetrically about the middle plane, and the first battery pack mounting portion and the second battery pack mounting portion both extend across the middle plane in the transverse direction.
In an implementation, the first battery pack mounting portion and the second battery pack mounting portion are arranged in a row in the longitudinal direction, to enable one of the first battery pack mounting portion and the second battery pack mounting portion to be constructed to be closer to the liquid outlet than the other.
To overcome disadvantages in the prior art, a problem to be resolved by embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine with high power supply.
A technical solution used by the embodiments of the present disclosure to resolve the problem of the prior art is to provide a handheld high-pressure cleaning machine, including: a main machine housing, mounted or integrally formed with a battery pack mounting portion, where the battery pack mounting portion is configured to allow detachable attachment of a battery pack; a liquid outlet, provided in the main machine housing; a first handle, to be held by an operator, where the first handle is mounted or integrally formed on the main machine housing and is disposed at an end away from the liquid outlet; a motor, disposed in the main machine housing, where the battery pack is capable of supplying power to the motor, to supply a driving force for the handheld high-pressure cleaning machine to operate; and a pump, driven by the motor to output a cleaning liquid, where the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack connected to the first battery pack mounting portion and a second battery pack connected to the second battery pack mounting portion; and the first battery pack mounting portion and the second battery pack mounting portion are constructed in a manner that a ratio C of a distance A between the combined center of gravity G0 of the first battery pack and the second battery pack and the center of the first handle to a distance B between the combined center of gravity G0 and the liquid outlet is less than 1.
To overcome disadvantages in the prior art, a problem to be resolved by embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine with high power supply.
A technical solution used by the embodiments of the present disclosure to resolve the problem of the prior art is to provide a handheld high-pressure cleaning machine, including: a main machine housing, mounted or integrally formed with a battery pack mounting portion, where the battery pack mounting portion is configured to allow detachable attachment of a battery pack; a liquid outlet, provided in the main machine housing; a first handle, to be held by an operator, where the first handle is mounted or integrally formed on the main machine housing and is disposed at an end away from the liquid outlet; a motor, disposed in the main machine housing, where the battery pack is capable of supplying power to the motor, to supply a driving force for the handheld high-pressure cleaning machine to operate; and a pump, driven by the motor to output a cleaning liquid, where the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the first battery pack mounting portion is constructed to be closer to the liquid outlet than the second battery pack mounting portion.
To overcome disadvantages in the prior art, a problem to be resolved by embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine with high power supply.
A technical solution used by the embodiments of the present disclosure to resolve the problem of the prior art is to provide a handheld high-pressure cleaning machine, including: a main machine housing, mounted or integrally formed with a battery pack mounting portion, where the battery pack mounting portion is configured to allow detachable attachment of a battery pack; a liquid outlet pipe, disposed on the main machine housing; a first handle, to be held by an operator, where the first handle is mounted or integrally formed on the main machine housing and is disposed at an end away from the liquid outlet; a motor, disposed in the main machine housing, where the battery pack is capable of supplying power to the motor, to supply a driving force for the handheld high-pressure cleaning machine to operate; and a pump, driven by the motor to output a cleaning liquid, where the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack and a second battery pack respectively connected to the first battery pack mounting portion and the second battery pack mounting portion; and the handheld high-pressure cleaning machine is supported on a support plane by the liquid outlet piped, the first and the second battery packs; a part, in contact with the support plane, of the liquid outlet pipe is defined as a first support point; a part, in contact with the support plane, of the first battery pack is defined as a second support point;
a part, in contact with the support plane, of the second battery pack is defined as a third support point, the first support point, the second support point, and the third support point are connected end to end to form a triangle, and in the transverse direction, a projection G′ of the center of gravity G of the handheld high-pressure cleaning machine on a triangular plane Z is located on a perpendicular line of the triangle, or the two battery packs are mounted on corresponding battery pack mounting portions in a manner that a size range in which the projection G′ deviates leftward or rightward from the perpendicular line of the triangle is not greater than a half of the size of a line segment formed by connecting the second support point and the third support point.
In one of the implementations, the projection G′ of the center of gravity G of the handheld high-pressure cleaning machine on the triangular plane Z is located in a region formed by the triangle.
In an implementation, the triangular plane Z includes a perpendicular line drawn through the first support point U to an opposite side of the first support point U, and the projection G′ of the center of gravity G of the handheld high-pressure cleaning machine on the triangular plane Z is located on the perpendicular line, or the first battery pack and the second battery pack are mounted on corresponding battery pack mounting portions in a manner that a ratio of a size that the projection G′ deviates leftward or rightward from the perpendicular line to the size of a line segment formed by connecting the second support point and the third support point is 0.55 to 0.9.
To overcome disadvantages in the prior art, a problem to be resolved by embodiments of the present disclosure is to provide a handheld high-pressure cleaning machine, including: a main machine housing, including a first handle for holding, a main body portion that is disposed at an angle from the first handle, a liquid inlet joint for a liquid to enter, and a liquid outlet portion for a liquid to be sprayed outward; a battery pack mounting portion, mounted or integrally formed on the main machine housing, where the battery pack mounting portion is configured to allow detachable connection of a battery pack; and functional components, including a motor disposed in the main body portion and a pump driven by the motor to transport a liquid outward, where the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, the first battery pack mounting portion and the second battery pack mounting portion are respectively configured on left and right sides of the main machine housing, and a maximum distance w2 between outermost edges of the first battery pack mounting portion and the second battery pack mounting portion in the transverse direction is not greater than a maximum width w1 of the main body portion in the transverse direction.
In an implementation, each of the first battery pack mounting portion and the second battery pack mounting portion is provided with an opening for slidable attachment of a corresponding battery pack, and the opening is provided facing downward.
In an implementation, each of the first battery pack mounting portion and the second battery pack mounting portion is provided with two parallel mounting guide rails, and the corresponding battery packs are slidably attached from bottom to top to the first battery pack mounting portion and the second battery pack mounting portion along the mounting guide rails in an extending direction of the mounting guide rail.
In an implementation, the first handle includes a holding portion, and an extending direction of each mounting guide rail is approximately parallel to an extending direction of the holding portion.
In an implementation, the main body portion is provided with a middle plane, the main body portion is disposed approximately symmetrically about the middle plane, and the first battery pack mounting portion and the second battery pack mounting portion are symmetrical about the middle plane.
In a preferred implementation, the center of gravity of the handheld high-pressure cleaning machine is within a range of 1 to 1.5 times the width of the holding portion of the handle on the left or right side of the middle plane.
In an implementation, the battery pack includes a first battery pack adapted to be connected to the first battery pack mounting portion and a second battery pack adapted to be connected to the second battery pack mounting portion, where the first battery pack and the second battery pack are specifically a group of battery packs with the same specifications, and the group of battery packs is capable of being used together to supply power to the motor.
In an implementation, when the first battery pack and the second battery pack are mounted on the first battery pack mounting portion and the second battery pack mounting portion respectively, the handheld high-pressure cleaning machine is capable of being stably supported on a horizontal plane by using lower ends of the first battery pack and the second battery pack and the liquid outlet portion as support points.
In an implementation, when the first battery pack and the second battery pack are mounted on the first battery pack mounting portion and the second battery pack mounting portion respectively, a range of a width by which the handheld high-pressure cleaning machine increases in the left direction or right direction is 17 mm to 47 mm.
In an implementation, when the first battery pack and the second battery pack are mounted on the first battery pack mounting portion and the second battery pack mounting portion respectively, a range of a ratio of a maximum width w3 of the first battery pack and the second battery pack in the transverse direction to a maximum width w1 of the main body portion in the transverse direction is 1.2 to 2.
In an implementation, the main body portion and the first handle cooperate with each other to form a mounting space, and the first battery pack mounting portion and the second battery pack mounting portion are both located in the mounting space.
In a preferred implementation, the first battery pack mounting portion and the second battery pack mounting portion are located between the first handle and the liquid inlet joint in the longitudinal direction.
In a preferred embodiment, the first battery pack mounting portion is provided with a first accommodation portion, and the second battery pack mounting portion includes a second accommodation portion, where the first accommodation portion and the second accommodation portion are joined to form a sole portion, and the sole portion includes a hollow mounting cavity configured to mount a control component.
The present invention further provides a handheld high-pressure cleaning machine, including: a main machine housing, including a handle for holding, a main body portion that is disposed at an angle from the first handle, a liquid inlet joint for a liquid to enter, and a liquid outlet portion for a liquid to be sprayed outward; a battery pack mounting portion, mounted or integrally formed on the main machine housing; a battery pack, configured to be detachably connected to the battery pack mounting portion; and functional components, including a motor disposed in the main body portion and a pump driven by the motor to transport a liquid outward, where
the battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack adapted to be connected to the first battery pack mounting portion and a second battery pack adapted to be connected to the second battery pack mounting portion; the first battery pack mounting portion and the second battery pack mounting portion are respectively configured on left and right sides of the main machine housing; and a maximum distance w2 between outermost edges of the first battery pack mounting portion and the second battery pack mounting portion in the transverse direction is not greater than a maximum width w1 of the main body portion in the transverse direction.
The present invention further provides a handheld high-pressure cleaning machine, including: a main machine housing and a pump disposed in the main machine housing; and a motor, disposed in the main machine housing, and configured to drive the pump to work. The handheld high-pressure cleaning machine further includes: a liquid outlet, provided in the main machine housing; a first handle, disposed on the main machine housing at a position away from the liquid outlet; and a second handle, disposed on the main machine housing at a position close to the liquid outlet.
In an implementation, the main machine housing includes a liquid outlet pipe, where the liquid outlet is disposed at a free end of the liquid outlet pipe; and the second handle is sleeved outside the liquid outlet pipe and is disposed coaxially with the liquid outlet pipe.
In an implementation, the main machine housing includes a liquid outlet pipe, where the liquid outlet is disposed at a free end of the liquid outlet pipe; and the second handle is connected to the outside of the liquid outlet pipe, and the second handle and the liquid outlet pipe are disposed at an angle, where a value range of the angle α is 0°<α<180°; and
a preferred angle is: α=90°.
In an implementation, the position of the second handle may be adjusted in an axial direction of the liquid outlet pipe.
In an implementation, the center of gravity of the handheld high-pressure cleaning machine is located between the first handle and the second handle.
In an implementation, a value range of a distance L between the center of the first handle and the center of the second handle is 200 mm≤L≤400 mm, where a preferred value of L is 200 mm, 220 mm, 240 mm, 260 mm, 280 mm, 300 mm, 320 mm, 340 mm, 360 mm, 380 mm or 400 mm.
In an implementation, holding regions of the first handle and/or the second handle have lengths not less than 100 mm.
In an implementation, the holding regions of the first handle and/or the second handle are provided with rubber coating, where a preferred material of rubber coating is TPE.
In an implementation, the holding regions of the first handle and/or the second handle are provided with skidproof stripes.
In an implementation, the first handle is disposed in a gun barrel form or a cross rod form relative to the main body portion.
Compared with the prior art, the present invention at least has the following beneficial effects:
1. The function of a large-capacity battery pack may be implemented by using two battery packs without redesigning a large-capacity battery pack matching the high-pressure cleaning machine. That is, the high power supply of the handheld high-pressure cleaning machine is implemented without changing a battery pack platform used for an existing tool, thereby improving a cleaning capability.
2. The battery pack is compatible with other direct current tools, to implement resource sharing.
3. An arrangement form of double handles facilitates holding by an operator with less effort, thereby effectively reducing arm fatigue during one-hand operation of the operator and improving the work experience of the operator.
The following describes preferred embodiments of embodiments of the present disclosure in detail with reference to the accompanying drawings, so that the advantages and features of the present disclosure can be more easily understood by a person skilled in the art, thereby defining the protection scope of the embodiments of the present disclosure more clearly and explicitly.
As shown in
A structure with a left half and a right half is used for the main machine housing 1, and is formed by connecting a first half housing 11 and a second half housing 12. The main machine housing 1 includes a main body portion 10, a liquid outlet portion 13 disposed at one end of the main body portion 10, and a first handle 14 disposed at the other end of the main body portion 10. That is, the liquid outlet portion 13 is disposed at an end away from the first handle 14. The liquid outlet portion 13 includes a liquid outlet pipe 130 in fluid communication with a cavity of the pump 4, and a liquid outlet 131 is disposed at a free end of the liquid outlet portion 13. In the present invention, the first handle 14 includes a holding portion 141 to be held by an operator, and the main body portion 10 and the first handle 14 are disposed at an angle. Specifically, the main body portion 10 approximately has a cylindrical shape and includes a central axis X1, the first handle 14 also includes a central axis X2, and the two central axes intersect with each other to form an angle. The angle is less than 180 degrees. The angle is configured to enable the main body portion 10 and the first handle 14 to form a mounting space 101.
The motor 3 and the pump 4 are both disposed in the main machine housing 1. Specifically, the motor 3 and the pump 4 are both disposed in the main body portion 10.
One end of the liquid inlet joint 2 may be assembled on the main machine housing 1 or integrally formed with the main machine housing 1, and the other end is suspended and provided with a liquid inlet 20. The liquid inlet joint 2 is connected to an external pipe through which a liquid flows (a water pipe) through the liquid inlet 20 to guide the liquid into the high-pressure cleaning machine 100. Further, in the present invention, the high-pressure cleaning machine 100 in which the motor 3 and the pump 4 are disposed in the main machine housing 1 is a handheld high-pressure cleaning machine. The handheld high-pressure cleaning machine is specifically an integrated spray gun, and the main machine 1 is approximately shaped like a pistol. For a requirement of portability, the handheld high-pressure cleaning machine 100 itself does not include a water tank storing water and is connected to a water pipe (not shown in the figure) through the liquid inlet 20 instead, and then the water pipe (not shown in the figure) is connected to an external water source. The external water source may be a pond, piped water, or provided by a container apparatus similar to a water tank or a barrel. Working scenarios of the handheld high-pressure cleaning machine 100 mainly include a household cleaning scenario and an outdoor activity scenario.
The trigger mechanism 5 is rotatably disposed on the first handle 14 at a connection between the trigger mechanism and the first handle 14 as a support point, and the trigger mechanism 5 is partially accommodated in the main body portion 10. The trigger mechanism 5 is specifically a trigger. The handheld high-pressure cleaning machine 100 further includes a control component (not shown in the figure). The pump 4 and the motor 3 are both connected to the control component. When a cleaning operation needs to be implemented, a cleaning signal may be inputted into the control component through the trigger mechanism 5 and the waterway in the inlet valve sealing system is opened. An external cleaning liquid (water) may pass through the waterway in the inlet valve sealing system under the action of the pump 4 and the motor 3 to be sprayed outward through the liquid outlet 131 to clean the surface of an object.
In the present invention, for ease of understanding, as shown in
In the present invention, a direct current power supply supplies power to the handheld high-pressure cleaning machine 100. Specifically, the direct current power supply may be a rechargeable battery pack 200. The battery pack 200 may be detachably mounted on the main machine housing 1 to supply power to the motor 3. There may be one or two or more battery packs 200. In the implementations described in the present invention, the battery pack 200 includes a first battery pack 201 and a second battery pack 202. The position of the center of gravity of the first battery pack is G1, and the position of the center of gravity of the second battery pack is G2. The rated voltage of each battery pack 201 or 202 is 18 V to 56 V. Preferably, the rated voltage of each battery pack is configured to be 18 V, and the rated capacity of each battery pack may be 2 Ah, 2.5 Ah, 3 Ah, 4 Ah, 6 Ah or 8 Ah. However, in other implementations, according to different requirements for the cleaning performance of the handheld high-pressure cleaning machine 100, the rated voltage of each battery pack may be alternatively 36 V or 42 V, and the rated capacity may be alternatively 2 Ah, 2.5 Ah, 3 Ah, 4 Ah, 6 Ah or 8 Ah. In this case, according to different configurations of the battery pack, the weight of the battery pack may be slightly adjusted.
In the embodiments of the present disclosure, the battery pack 200 is a detachable rechargeable lithium battery pack. The lithium battery pack 200 is at least adaptively connected to two direct current tools of different types. For example, the lithium battery pack may be commonly compatible with electric tools such as a direct current blower, a trimmer, a lawn mower, a chainsaw or a pruning shear. In this embodiment, a user may even buy only a main machine of the handheld high-pressure cleaning machine 100, and use a battery pack of another existing tool (for example, a blower or a trimmer) to adapt to the handheld high-pressure cleaning machine 100, so that energy sharing is implemented for real, to facilitate the compatibility of the battery pack platform. It should be noted that, the battery pack 200 may be alternatively not a lithium battery, but is a nickel hydrogen battery or a nickel cadmium battery instead. In addition, the configuration of two battery packs 200 improves energy reservation of the handheld high-pressure cleaning machine 100, thereby ensuring the cleaning performance of the handheld high-pressure cleaning machine 100 after a single time of charging. Meanwhile, the function of a large-capacity battery pack may be implemented by using two battery packs 200 without redesigning a large-capacity battery pack matching the handheld high-pressure cleaning machine 100. Therefore, the high power supply of the handheld high-pressure cleaning machine 100 is implemented without changing a battery pack platform used for an existing tool, thereby improving a cleaning capability.
The main machine housing 1 further includes a battery pack mounting portion 15 for detachable connection of the battery pack 200, and the quantity of the battery pack mounting portions 15 is the same as the quantity of the battery packs 200. That is, there are two battery pack mounting portions 15. Specifically, the two battery pack mounting portions 15 are defined as a first battery pack mounting portion 151 and a second battery pack mounting portion 152. The battery pack 200 is configured to be connected to or detached from the battery pack mounting portion 15 in a sliding manner. The same reference numeral is used for the first battery pack mounting portions in different embodiments, and the same reference numeral is also used for the second battery pack mounting portions in different embodiments.
The following specifically describes the sliding matching between the battery pack 200 and the battery pack mounting portion 15. Because in the implementations of the present disclosure, the two battery pack mounting portions 15 have the same structure, the two battery packs also have the same structure. For brevity of description, the following only describes the structures of the first battery pack 201 and the first battery pack mounting portion 151 in detail.
Referring to
Further, referring to
Referring to
To improve the cleaning performance of the handheld high-pressure cleaning machine 100, in the present invention, referring to
Further, to consider both the cleaning performance and the requirement of the operator for the portability of the handheld high-pressure cleaning machine 100, in the present invention, the triple plunger pump 4 is driven by a motor shaft of a high-speed small motor, to optimize the weight of the handheld high-pressure cleaning machine 100 and improve the portability. The rotation of the motor 3 is converted into the reciprocation of the plungers 42 through a transmission mechanism 43. In the triple plunger pump 4, the efficiency of outputting a cleaning liquid is improved greatly. Certainly, since the three plungers 42 reciprocate, sliding resistance between the three plungers 42 and the pump body 41 is relatively great and power consumption is increased, so that a motor 3 with relatively high rated power is needed to overcome the sliding resistance of the three plungers. Compared with direct use of a relatively heavy low-speed motor with a relatively large volume, in the embodiments of the present disclosure, through appropriate cooperation between a reduction mechanism and the high-speed small motor, the weight and volume of the motor 3 are significantly reduced. Specifically, the transmission mechanism 43 includes a gear reduction mechanism 431 and a swashplate mechanism 432 disposed between the gear reduction mechanism 431 and the pump body 41. A no-load speed of the motor 3 is greater than or equal to 17500 rpm. The swashplate mechanism 432 drives the plungers 42 to reciprocate in the pump body 41. In the present invention, the relatively heavy low-speed big motor is replaced with the relatively light high-speed small motor and the gear reduction mechanism, to reduce the total weight.
As described above, in the handheld high-pressure cleaning machine 100 provided in the present invention, the high-speed motor drives the triple plunger pump to output the cleaning liquid, and the double battery packs supply power to the motor 3. The total weight is approximately between 3 kg to 5 kg. With this weight, when the user operates the machine to work with one hand, arm fatigue may occur soon. To help the user to hold the machine more comfortably and improve work experience of the user, in the present invention, the handheld high-pressure cleaning machine 100 further includes a second handle 6. Specifically, the second handle 6 is at least partially disposed on the periphery of the liquid outlet pipe 130. When the operator uses the handheld high-pressure cleaning machine 100 to perform a cleaning operation, the two handles may be held at the same time. In this case, the weight of the handheld high-pressure cleaning machine 100 is borne by two arms holding the two handles. Compared with the handheld high-pressure cleaning machine with only one handle disposed in the prior art, such an arrangement form of double handles facilitates holding by the operator with less effort, thereby effectively reducing arm fatigue during one-hand operation of the operator, improving the work experience of the operator, and improving the cleaning efficiency at the same time.
The present invention mainly provides two implementations of setting the second handle 6. The following is the detailed description. It should be noted that, the same reference numeral is used for the second handles 6 in different implementations.
A first implementation of arranging the second handle 6 is shown in
Referring to
It should be noted that, in this embodiment, “the free end of the liquid outlet pipe 130” refers to an end of the liquid outlet pipe 130 away from the first handle 14, that is, an outermost end for outputting a liquid of the main machine housing 1 of the handheld high-pressure cleaning machine 100.
It should be noted that, a line box in
It should further be noted that, in this embodiment, “the second handle 6 and the liquid outlet pipe 130 are coaxial” is that an extending direction of the second handle 6 and an axial direction of the liquid outlet pipe 130 are coaxial, and the “the axial direction of the liquid outlet pipe 130” is a liquid outlet direction in the liquid outlet pipe 130. When the second handle 6 and the liquid outlet pipe 130 are coaxial, it may be understood that the extending direction of the second handle 6 and the liquid outlet direction in the liquid outlet pipe 130 are parallel to each other.
A second implementation of arranging the second handle 6 is specifically shown in
It should be noted that, in this embodiment, “the second handle 6 is perpendicular to the liquid outlet pipe 130” is that the extending direction of the second handle 6 is perpendicular to the axial direction of the liquid outlet pipe 130. In addition, the definition of “the axial direction of the liquid outlet portion 13” is the same as the definition of the axial direction of the liquid outlet pipe 130 in the foregoing embodiment.
It should further be noted that, in this embodiment, a form that the second handle 6 is perpendicular to the liquid outlet pipe 130 may be that the second handle 6 in
Further, in this embodiment, the position of the second handle 6 may be adjusted back and forth in the axial direction of the liquid outlet pipe 130. When the operator uses the handheld high-pressure cleaning machine 100 to perform a cleaning operation, a distance between the first handle 14 and the second handle 6 may be adaptively adjusted as required, to reach an optimal holding distance. Such an arrangement enables the handheld high-pressure cleaning machine 100 in this embodiment to meet use requirements of different operators, to achieve relatively high compatibility.
Specifically, referring to
In this embodiment, the handheld high-pressure cleaning machine 100 implements the mounting and adjustment of the position of the second handle 6 on the liquid outlet pipe 130 by using the U-shaped connecting member sleeved on the liquid outlet pipe 130, to implement a simple structure, easy control, and low costs. Certainly, in other implementations, the mounting portion 61 may be alternatively in a structural form of the foregoing circular member sleeved on the liquid outlet pipe 130. A connection manner between the holding portion 62 and the mounting portion 61 may be the foregoing fixed connection manner, but is not limited thereto, and may be set to other forms. For example, the holding portion and the mounting portion are hinged, to enable the holding portion to be retracted toward the mounting portion when the handheld high-pressure cleaning machine 100 is not in operation, to implement storage of the holding portion.
The handheld high-pressure cleaning machine 100 further includes a fixing member (not shown) configured to fix the position of the second handle 6. After the position of the second handle 6 is adjusted completely, the second handle 6 may be fixed to the liquid outlet pipe 130 by using the fixing member, to reduce or even avoid an adverse case in which the second handle 6 is detached from the liquid outlet pipe 130 in a cleaning operation process, thereby ensuring the working stability of the handheld high-pressure cleaning machine 100 in this embodiment.
Referring to
Further, referring to
Referring to
Therefore, in this embodiment, referring to
The balance between the load bearing of the two arms of the operator is the first consideration factor for the joint positions of the two battery packs 201 and 202. According to the foregoing consideration factor, as shown in
The center of the first handle 14 should be understood as the center of gravity of the first handle 14 or a holding point of the first handle 14 or a geometric center of the first handle 14, and the center of the second handle 6 should be understood as the center of gravity of the second handle 6 or a holding point of the second handle 6 or a geometric center of the second handle 6. The handheld high-pressure cleaning machine 100 includes a plumb line L2 passing through the center of gravity G of the handheld high-pressure cleaning machine 100, a plumb line L1 passing through the center of the first handle 14, and a plumb line L3 passing through the center of the second handle 6. The distance D should be understood as a longitudinal distance between the plumb line L1 and the plumb line L2, and the distance L should be understood as a longitudinal distance between the plumb line L1 and the plumb line L3. Such a design ensures the balance between the load bearing of the two arms and the stability of the handheld high-pressure cleaning machine 100 in a working process.
Referring to
Certainly, in the handheld high-pressure cleaning machine provided in this embodiment, the distance between the center of the first handle 14 and the center of the second handle 6 may be alternatively another appropriate value. In this embodiment, the length of the holding region of the first handle 14 is not less than 100 mm, and the length of the holding region of the second handle 6 is not less than 100 mm at the same time. Such an arrangement ensures sufficient contact between the hands of the operator and the first handle 14 and the second handle 6, so that the reliability of holding the handheld high-pressure cleaning machine by the operator is ensured in a cleaning operation process, thereby further ensuring a smooth cleaning operation.
It should be noted that, the arrangement is not limited thereto, and another arrangement form may be used. For example, only the length of the holding region of the first handle 14 is set to not less than 100 mm, or only the length of the holding region of the second handle 6 is set to not less than 100 mm.
Referring to
It should be noted that, in this embodiment, the second handle 6 may be the arrangement form of a gun barrel, but is not limited thereto, and another arrangement form such as a cross rod form (not shown in the figure) may be used. Specifically, the extending direction of the second handle 6 is parallel to an extending direction (a liquid outlet direction of the liquid outlet pipe 130) of the main body portion 10. The arrangement form of a cross rod form is a conventional arrangement in this art, and details are not described herein again.
In this embodiment, a lower end of the first handle 14 and the battery pack mounting portion are connected through a connecting rib 105, to form an enclosed D shape, so that the housing of the high-pressure cleaning machine has higher strength and a more stable structure. Specifically, the width of the connecting rib is the same as a width of the holding portion 141 of the first handle 14 in the transverse direction.
In addition, when the handheld high-pressure cleaning machine 100 operates, a high-pressure water flow is sprayed outward from a nozzle to impact the surface of an object. When the water flow impacts the surface of the object, the water flow inevitably splashes backward, especially when the handheld high-pressure cleaning machine is used to clean a high-altitude object. To prevent the battery pack mounting portion and/or the battery pack mounted on the corresponding battery pack mounting portion from being wetted by a water jet splashing backward, the two battery pack mounting portions 15 are disposed at the back in this implementation.
The preventing the splashing of the water flow from affecting the sealing of the battery pack mounting portion 15 and/or the battery pack 200 mounted on the corresponding battery pack mounting portion 15 is a second consideration factor for the design of the joint positions of the two battery packs 201 and 202. Specifically, the center of gravity G of the handheld high-pressure cleaning machine 100 is located between the first handle 14 and the liquid outlet 131, and the first handle 14 is closer to the two battery pack mounting portions 15 than the liquid outlet 131. The center of gravity G of the handheld high-pressure cleaning machine 100 is mainly determined based on the positions of weight objects such as the position of the motor 3, the position of the pump 4, and the positions of the two battery packs 200 mounted on the battery pack mounting portions 15. Therefore, a mounting configuration of the two battery packs 201 and 202 is that as shown in
In addition, the foregoing solution may be alternatively understood as that, when the battery packs 201 and 202 are attached to the corresponding battery pack mounting portions 15, the battery packs 201 and 202 are relatively far from the liquid outlet 131. Specifically, as shown in
It should be noted that, the combined center of gravity G0 of the two battery packs should be understood as a middle point of a connecting line between the center of gravity G1 of the first battery pack and the center of gravity G2 of the second battery pack.
In addition, as described above, the center of gravity G of the handheld high-pressure cleaning machine 100 is mainly determined based on the positions of the weight objects such as the position of the motor 3, the position of the pump 4, and the positions of the two battery packs 200 mounted on the battery pack mounting portions 15. Therefore, in this embodiment, the motor 3, the pump 4, and the two battery packs 200 are distributed in a manner that at least one structure of the motor 3, the pump 4, and the two battery packs 200 is configured on a rear side of the center of gravity G of the handheld high-pressure cleaning machine 100, to balance the position of the center of gravity of the entire machine in the longitudinal direction. The motor 3 and the first battery pack 201 and the second battery pack 202 form an energy component. As shown in
In addition, to ensure that the handheld high-pressure cleaning machine 100 can be balanced in the transverse direction even when two battery packs 200 are mounted and maintain relatively adequate operability of the tool, in this design, the two battery packs 200 are mounted in the width direction (that is, the transverse direction) of the main machine housing 1.
The maintaining operation balance of the handheld high-pressure cleaning machine 100 in the transverse direction is a third consideration factor for the design of the joint positions of the two battery packs 201 and 202. Specifically, referring to
Referring to
It should be noted that, the maximum distance W2 herein should be understood as a distance between a leftmost edge of the first battery pack mounting portion 151 and a rightmost edge of the second battery pack mounting portion 152. Further, when mounting surfaces of the two battery packs are both parallel to the middle plane S, the maximum distance W2 herein is a straight-line distance between the mounting surfaces of the two battery packs, namely, the distance between “edges” should be understood as a distance between the surfaces. When the mounting surfaces of the two battery packs are obliquely disposed relative to the middle plane S, in other words, when the mounting surfaces of the two battery packs extend outward relative to the middle plane S, the maximum distance herein should be understood as a distance between outermost extended edges of the mounting surfaces of the two battery packs. In this case, the distance between the “edges” should be understood as a distance between two lines or two symmetrical points.
Further, referring to
The following describes several implementations for the design of the joint positions of the two battery packs 200, and these implementations meet at least one of the four consideration factors.
Referring to
When the two battery packs 201 and 202 are joined to the battery pack mounting portions 151 and 152 in an attachment direction from top to bottom, a distance between the middle plane S of the main body portion 10 and the mounting surface of the battery pack is inevitably not lower than a distance between the middle plane S of the main body portion 10 and a left end surface of the main body portion 10, or a distance between the middle plane S of the main body portion 10 and the mounting surface of the battery pack is inevitably not lower than a distance between the middle plane S of the main body portion 10 and a right end surface of the main body portion 10, to prevent the left end surface of the right end surface of the main body portion 10 from interfering with the insertion of the battery packs 201 and 202, so that the battery packs 201 and 202 can be slidably attached to the battery pack accommodation cavity 1510. However, according to such a design, the entire machine becomes very wide in the transverse direction, and the volume of the entire machine is increased.
It should be noted that, “an attachment direction of the battery packs 201 and 202 from top to bottom” herein may be understood as a direction from a front-upper side to a rear-lower side or from directly above vertical to directly below or a direction from a rear-upper side to a front-lower side. “A left end surface of the main body portion 10” may be understood as a leftmost plane that is away from the middle plane S of the main body portion 10 and parallel to the middle plane S of the main body portion 10. “A right end surface of the main body portion 10” may be understood as a rightmost plane that is away from the middle plane S of the main body portion 10 and parallel to the middle plane S of the main body portion 10. A distance between the left end surface and the right end surface of the main body portion 10 forms the width W1 of the main body portion 10 in the transverse direction.
In view of this, in this implementation, the attachment direction in which the battery packs 201 and 202 are slidably attached to the battery pack mounting portions 151 and 152 is designed as that the first battery pack 201 and the second battery pack 202 are attached to the corresponding battery pack mounting portions 151 and 152 in a manner of sliding from bottom to top. In other words, an opening 1511 provided in the battery pack accommodation cavity 1510 for the sliding attachment of the battery packs 201 and 202 is a downward opening (as shown in
It should be noted that, the direction from bottom to top herein may be understood as an oblique upward direction from a rear-lower side or a vertical upward direction from a directly below or an oblique upward direction from a front-lower side. Preferably, the first battery pack 201 and the second battery pack 202 slide obliquely upward from the rear-lower side to be attached to the corresponding battery pack mounting portions 151 and 152 (as shown in
Further, as shown in
In addition, when the handheld high-pressure cleaning machine 100 needs to be placed, at least two support points need to be selected to be in contact with the ground or a working surface (a support plane), and the two support points should be distributed on the front and rear sides. The handheld high-pressure cleaning machine 100 is stably placed on the ground or the working surface through the cooperation between the support points distributed on the front and rear sides. Referring to
In this implementation, the arrangement of the two battery packs 200 is properly used to implement the stable placement of the handheld high-pressure cleaning machine 100 even in a case that the handheld high-pressure cleaning machine is connected to the battery packs 200. In addition, the inventor further finds that the position of the center of gravity G of the entire machine is associated with whether the handheld high-pressure cleaning machine 100 with which the battery packs 200 are connected can be stably placed on the ground or the working surface, and description is made below in detail.
Since the first battery pack 201 and the second battery pack 202 are both disposed close to the rear side, and the first battery pack 201 and the second battery pack 202 are symmetrically distributed on two sides of the middle plane S, the two battery packs 200 may be respectively mounted on the corresponding battery pack mounting portions 151 and 152. A part of the first battery pack 201 which in contact with the support plane is used as a second support point V, and a part of the second battery pack 202 which in contact with the support plane is used as a third support point W. Specifically, as shown in
An implementation of the second support point V and the third support point W is that the second support point V and the third support point W are a line. In other words, an edge, in contact with the ground or the working surface, of the first battery pack 201 is linear contact. An edge, in contact with the ground or the working surface, of the second battery pack 202 is also linear contact. In this case, a distance between a leftmost edge of the second support point V and a rightmost edge of the third support point W is the width of a bottom edge V-W of the triangle shown in
Another implementation of the second support point V and the third support point W is that, the second support point V and the third support point W are both fixed points. In other words, the edge, in contact with the ground or the working surface, of the first battery pack 201 is an arc, and the contact between the first battery pack 201 and the ground or the working surface is point contact. The edge, in contact with the ground or the working surface, of the second battery pack 202 is also an arc, and the contact between the second battery pack 202 and the ground or the working surface is point contact. In this case, the distance between the two fixed points in the transverse direction is the length of the bottom edge V-W of the triangle shown in
Certainly, the support points, in contact with the ground or the working surface, of the two battery packs 200 may be alternatively in other forms.
Further, in this implementation, the width of the liquid outlet portion 13 in the transverse direction is relatively small. Specifically, the width of the liquid outlet portion 13 in the transverse direction is approximately 40 mm to 55 mm. To ensure that the three support points stably support the entire machine, a maximum length V-W between the second support point V and the third support point W in the transverse direction is greater than a maximum width of the liquid outlet portion 13.
As described above, in this implementation, the attachment direction in which the battery packs 201 and 202 are slidably attached to the battery pack mounting portions 151 and 152 is designed as that the first battery pack 201 and the second battery pack 202 slide obliquely upward from the rear-lower side to be attached to the corresponding battery pack mounting portions 151 and 152. Therefore, as shown in
Further, in this implementation, the weight of the motor 3 is approximately 435 g, the weight of the pump 4 is approximately 1 kg, the weight of one single battery pack is approximately 400 g, and the specifications of the two battery packs 200 are the same, so that the weight of the two battery packs 200 is 800 g. Considering that the center of gravity G of the handheld high-pressure cleaning machine 100 is mainly determined based on the positions of the weight objects such as the position of the motor 3, the position of the pump 4, and the positions of the two battery packs 200 mounted on the handheld high-pressure cleaning machine 100. The motor 3 and the pump 4 are both located in the main body portion 10, and a sum of weights of the motor 3 and the pump 4 is greater than a sum of weights of the two battery packs 200. Therefore, the center of gravity G of the entire machine should be located in the main body portion 10.
Further, to consider both a relatively small width size of the entire machine and stable support of the three support points, a side U-V (that is, a lateral side of the isosceles triangle) formed by the first support point U and the second support point V through connection, a side U-W (that is, another lateral side of the isosceles triangle) formed by the first support point U and the third support point W through connection. A range of an angle formed by the side U-V and the side U-W is 20 degrees to 45 degrees, for example, 30 degrees, 35 degrees or 40 degrees.
In this implementation, a structure with a left half and a right half is used for the main machine housing 1, and there is only a little difference between the first half housing 11 and the second half housing 12 of the main machine housing 1. For element parts accommodated in the main machine housing 1, there is a little difference between the weight of the element parts located in the first half housing 11 and the weight of the element parts located in the second half housing 12. In addition, the two battery packs 200 joined to the main machine housing 1 are arranged on the left and right sides and have the same specifications. Therefore, an amplitude that the center of gravity G of the handheld high-pressure cleaning machine 100 deviates leftward or rightward from the middle plane S is modest. Specifically, as shown in
Specifically, in an implementation, the projection G′ of the center of gravity G of the entire machine on the plane Z formed by the triangle may be configured to bias leftward or rightward at a distance of a half of the size of the bottom side V-W of the triangle. That is, the projection G′ overlaps with the point V or W. In another implementations, the projection G′ is located in a region formed by the three sides of the triangle, and a distance at which the projection G′ bias leftward or rightward is less than a half of the size of the bottom side V-W of the triangle.
Preferably, as shown in
It should be noted that, the distance at which the projection G′ of the center of gravity G of the entire machine on the plane Z bias leftward or rightward from the perpendicular line of the triangle needs to be configured to ensure that G′ is located in the triangular plane enclosed by the triangle.
For the implementation that the three support points construct an isosceles triangle, a ratio of a distance between the projection G′ of the center of gravity G of the entire machine on the plane Z and a plumb line L4 at which the first support point U is located to a distance between the plumb line L4 and a straight line L5 at which the triangle bottom side formed by the second support point V and the third support point W through connection is configured to be 0.55 to 0.8. Preferably, as shown in
According to such a design, after the two battery packs 200 are mounted, the handheld high-pressure cleaning machine 100 may be in a stable standing state, and does not tilt leftward or rightward or tilt forward or backward.
Referring to
Certainly, the axis X3 and the axis X4 and the middle plane S of the main body portion 10 may be alternatively constructed as nonparallel arrangement. Specifically, an extending direction of the axis X3 may intersect with the middle plane S to form a first acute angle, an extending direction of the axis X4 may intersect with the middle plane S to form a second acute angle, and the first acute angle is equal to the second acute angle. In addition, a sum of the first acute angle and the second acute angle is still an acute angle. In other words, the axis X3 and the axis X4 are set symmetrical about the middle plane S of the main body portion 10, and the two battery packs 201 and 202 may slide from the lower-rear side to the upper-front side to be attached to the corresponding battery pack mounting portions 151 and 152.
In the following embodiments, at least one of the foregoing four consideration factors is considered in a design of the joint positions of the two battery packs, and main differences between the design and the first implementation lie in a specific position relationship between the battery pack mounting portion and the main body portion 10 and an assembling direction of the battery pack 200.
Specifically,
In addition, in this implementation, the attachment direction of the two battery packs 201 and 202 may be designed as that: the two battery packs 201 and 202 are slidably joined to the battery pack mounting portions 151 and 152 from top to bottom. The direction from top to bottom herein may be understood as oblique insertion from the front-upper side to the rear-lower side or oblique insertion from the rear-upper side to the front-lower side or vertical insertion from directly above to directly below. According to such a design, the attached battery packs 201 and 202 may be prevented from being detached from the battery pack mounting portions 151 and 152. Preferably, the attachment direction of the battery packs 201 and 202 is that the battery packs are slidably attached to the corresponding battery pack mounting portion vertically downward from the directly above. The attachment direction of the battery packs is opposite to a direction in which an external water source is introduced into the liquid inlet 20. The battery pack mounting portion is configured to allow the battery pack to be configured between the liquid inlet joint 2 and the first handle 14.
In addition, in this embodiment, there may be two types of position relationships between the attachment direction of the battery packs 201 and 202 and the middle plane S of the main body portion 10. Referring to
In addition, as shown in
In the following embodiments, at least one of the foregoing four factors is considered in a design of the joint positions of the two battery packs, and main differences between the design and the second implementation lie in a specific position relationship between the battery pack mounting portions 151 and 152 and the main body portion 10 and an assembling direction of the battery pack 200.
Specifically,
A difference between this implementation and the previous implementation lies in that the attachment directions of the battery packs 200 are different. Specifically, as shown in
Further,
In the following embodiments, at least one of the foregoing four factors is considered in a design of the joint positions of the two battery packs 200, and main differences between the design and the first implementation, the second implementation, and the third implementation lie in the specific positions of the battery pack mounting portions 151 and 152 and an assembling direction of the battery packs 201 and 202.
Specifically,
According to such a design, on one hand, the battery pack mounting portions 151 and 152 and the liquid inlet joint 2 are disposed on the upper and lower sides, to enable the battery packs 200 to be far away from the water source, thereby improving a waterproof effect of the battery packs 200. On the other hand, the two battery packs 200 are inserted and removed in the same direction, to facilitate user operations.
In the foregoing four implementations, although there is a difference between the specific mounting positions of the two battery packs 200, there is at least one common point between the four implementations: the two battery pack mounting portions are both located between the first handle 14 and the second handle 6, thereby ensuring that the two battery packs (the first battery pack 201 and the second battery pack 202) are configured between the first handle 14 and the second handle 6 in a manner that the ratio K of the distance D between the center of gravity G of the handheld high-pressure cleaning machine and the center of the first handle 14 to the distance L between the center of the first handle 14 and the center of the second handle 6 is within a range greater than or equal to 35% and less than or equal to 50% in the longitudinal direction (or as observed from the left side).
The difference between the positions of the two battery pack mounting portions in the following embodiments and that in the foregoing implementations is relatively great. The difference mainly lies in that at least one of the battery pack mounting portions is not disposed between the first handle 14 and the second handle 6, and detailed description is given below.
Specifically, as shown in
Furthermore, a foremost end of the at least one battery pack mounting portion 151 extends forward beyond the plumb line L2 at which the center of gravity G of the handheld high-pressure cleaning machine is located. According to such a design, when the two battery packs 201 and 202 are respectively mounted on the battery pack mounting portions 151 and 152, the two coplanar battery packs 201 and 202 can support the handheld high-pressure cleaning machine 100 to be in a standing state.
In addition, the attachment directions of the two battery packs 200 are the same, and the two battery packs are connected to the corresponding battery pack mounting portions 151 and 152 in a manner of being perpendicular to the extending direction (or the middle plane S) of the motor shaft. Preferably, for the battery packs 200, the battery packs 200 are joined to the corresponding battery pack mounting portions 151 and 152 in an attachment direction from right to left.
Specifically, the two battery pack mounting portions 151 and 152 are located at one end, away from the main body portion 10, of the first handle 14. The two battery pack mounting portions 151 and 152 are disposed on the left and right sides of the middle plane S in a manner of facing away from each other, and are symmetrical with each other about the middle plane S. Specifically, the two battery pack mounting portions 151 and 152 are configured in parallel on the left and right sides of the main machine housing 1 in the transverse direction. In addition, insertion directions of the battery packs 201 and 202 may be the same. According to such a design, the machine is relatively balanced in the transverse direction to ensure the reliability of operations, and the two battery packs 201 and 202 may be mounted and removed in the same direction at one time, to facilitate a disassembly operation of the user.
In the present invention, the handheld high-pressure cleaning machine 100 further includes an accessory attachment portion (not marked) integrally formed or mounted on the liquid outlet 131. The accessory attachment portion is operably connected to a spray rod, and the cleaning liquid flowing to the handheld high-pressure cleaning machine 100 can be sprayed outward from the spray rod. The spray rod includes a long-gun spray rod 300 or a short-gun spray rod 400 selectively detachably connected to the accessory attachment portion. Specifically, as shown in
The foregoing embodiments only show some implementations of the present invention, although the descriptions are relatively specific and detailed, the implementations should not be understood as a limitation to the patent scope of the present invention. It should be noted that, persons of ordinary skill in the art may further make some variations and improvements without departing from the concept of the present invention, and the variations and improvements belong to the protection scope of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201810742000.7 | Jul 2018 | CN | national |
| 201810743756.3 | Jul 2018 | CN | national |
| 201810747334.3 | Jul 2018 | CN | national |
| 201910247328.6 | Mar 2019 | CN | national |
| 201910279910.0 | Apr 2019 | CN | national |
This application is a Continuation of International Application No. PCT/CN2019/095225, filed on Jul. 9, 2019, which claims the benefit of and priority to Chinese Patent Application No. 201810743756.3, entitled “HANDHELD HIGH-PRESSURE CLEANING MACHINE” and filed on Jul. 9, 2018; Chinese Patent Application No. 201910247328.6, entitled “HANDHELD HIGH-PRESSURE CLEANING MACHINE” and filed on Mar. 29, 2019; Chinese Patent Application No. 201810742000.7, entitled “HANDHELD HIGH-PRESSURE CLEANING MACHINE” and filed on Jul. 9, 2018; Chinese Patent Application No. 201910279910.0, entitled “HANDHELD HIGH-PRESSURE CLEANING MACHINE” and filed on Apr. 9, 2019; and Chinese Patent Application No. 201810747334.3, entitled “HANDHELD HIGH-PRESSURE CLEANING MACHINE AND CLEANING DEVICE” and filed on Jul. 9, 2018, all content thereof is incorporated herein by reference in their entireties.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2019/095225 | Jul 2019 | US |
| Child | 17145165 | US |
