Patent Application
20230255419
The invention relates to air blowing and suction integrated device and more particularly to an air flow channel switching structure of the air blowing and suction all-in-one device.
An device integrating air blowing and suction relates to two technologies of air blowing and suction. In the air blowing technology, a mechanism capable of generating wind power is required, and air flow is usually generated by rotating a motor, and the air flow is blown to a place needing air blowing through an air nozzle. Suction technology requires a mechanism that generates a negative pressure, usually through a rotating impeller, that draws air and dust into the dust bin.
At present, there is a vacuum cleaner with a comb on the market, which can be used for combing pet hair and suction the fallen hair into the dust bin of vacuum cleaner. While this appliance can solve the problem of storing lost hair during grooming, it cannot blow dry the hair.
However, similar appliance existing on the market include pet hair dryer, blow dryer and vacuum cleaners hair dryer can be used for drying human or animal hair, but cannot rapidly switch vacuum cleaner, and vacuum cleaners can be used for cleaning hairs on floors and furniture, but cannot dry hair of people or animals. The pet blow dryer is mainly used for professional pet markets or families raising large pets. The pet hair dryer is large, although the wind is strong, it does not have the ability to quickly switch between blowing and suction on the same device, which needs to be improved.
In order to overcome the above disadvantages of the prior art, an embodiment of the invention provides an air flow channel switching structure of a blowing and suction integrated device to solve the problems in the background technology.
To achieve the purpose, the invention provides the following technical scheme: the air flow channel switching structure of the air blowing and suction integrated device comprises a device, wherein the device comprises a housing, and the front end of the housing is provided with an air inlet and outlet;
In one prefer embodiment, an annular groove is arranged on that bottom surface part in the cavity, at the opening of the air inlet connection port and at the opening of the air outlet connection port. A adaptive elastic rubber pad can be arrange in the annular groove.
In a preferred embodiment, the bottom base plate is provided with an annular arc convex platforms which is matched with the annular groove in the cavity. If the base plate slides to the air inlet connecting port or the air outlet connecting port, the annular arc convex platforms is firmly clamped in the annular groove under the elastic force of the spring, so that the connection dislocation of the linkage pipe connector is effectively prevented, and the blowing or suction effect of the device is influenced. The bottom surface of the base plate may also be planar or curved.
In a preferred embodiment, two opposite side walls of the mounting bracket are provided with one or more groups of chute, and the chute on the mounting bracket are matched with the convex platforms on the base plate.
In a preferred embodiment, that bottom surface within the cavity may also be planar or curved and adapt to the bottom surface in contact with the pipe connector.
In a preferred embodiment, one side surface of the u-shaped bracket is provided with a contact piece and a contact piece. And, the contact piece is arranged at one side of the contact piece.
In a preferred embodiment, a corresponding trigger device is arranged above a contact piece on the u-shaped bracket. The trigger device is fixed on the housing through a screw or a buckle.
In a preferred embodiment, the device also includes a circuit board and a driver circuit adapted to the circuit board. The circuit board is mounted on an internal side of the housing.
In a preferred embodiment, the blower assembly comprises a motor assembly and an electric heating wire mounted on an inner side of the blower assembly housing. The motor assembly, electric heating wire, trigger device are electrically connected with the circuit board. Twist the control handle downward, and the u-shaped bracket linkage pipe connector on the control handle moves downward. When the annular arc convex platforms on the bottom face of the base plate of the pipe connector is stuck into the annular groove below the cavity, the contact piece on the u-shaped bracket contacts with the trigger device. Turn on the corresponding switch button on the device, and motor assembly in the blower assembly works with the electric heating wire. The blower assembly blows outward.
In a preferred embodiment, the vacuum assembly also includes a motor assembly mounted on an internal side of the vacuum assembly housing and a strainer tank mounted in front of the motor assembly. The motor assembly, trigger device is electrically connected with the circuit board. Twist the control handle upward, u-shaped bracket linkage pipe connector on the control handle rotates upward. When the annular arc convex platforms on the bottom base plate of the pipe connector is stuck into the annular groove on the upper inner part, the contact plate on the u-shaped bracket is in contact with the trigger device. Turn on the corresponding switch button on the device, and the motor assembly in the vacuum assembly is powered on. The vacuum assembly draws air inward.
Following are technical effects and advantages of the invention: by setting the air duct switching assembly composed of flexible hose, rotating assembly, pipe connector and mounting bracket, in use, only need to twist the control handle on the rotating assembly, control handle u-shaped bracket linkage pipe connector, pipe connector sliding up and down or left and right in the cavity of the mounting bracket. The flexible hose fixed at one end of the pipe connector is switched to the corresponding air inlet or outlet pipe to realize the blowing and suction of the device. The device is multi-functional and has a relatively simple structure, with small size, which convenient for users.
The above and other objects, features and advantages of the invention will become apparent from the following detailed description taken with the accompanying drawings.
Referring to
An annular groove 1222 is provided on the inner bottom surface of cavity 1221 and is located at the inlet air connection opening and outlet air connection opening. An adaptive elastic rubber cushion can also be set in the annular groove 1222 to increase air tightness. The bottom surface of the base plate 1231 is provided with an annular arc convex platforms 12312 which is matched with the annular groove 1222 in cavity 1221. When the base plate 1231 slides to the air inlet connecting port 1224 or the air outlet connecting port 1225, the annular arc convex platforms 12312 is firmly clamped into the annular groove 1222 under the elastic force of the spring 1232, so that the connection dislocation of the pipe connector 123 is effectively prevented, and the blowing/suction effect of the device 1 is influenced. In addition, the hair can be effectively prevented from being clamped into the air duct switching assembly 12 during suction, thereby reducing the failure of the air duct switching assembly 12 in use. The bottom surface of the base plate 1231 can also be designed as a flat or curved shape. The two opposite sidewalls of the mounting bracket 122 are provided with one or more groups of chute 1223. The chute 1223 on the mounting bracket 122 are matched with the convex platforms 1234 on the base plate 1231, wherein, the convex platforms 1234 on the base plate 1231 move up and down or left along with the base plate 1231, and the convex platforms 1234 on the cavity 1221 move up and down or left or right in the chute 1223 to prevent the pipe connector 123 from shaking or rotating in the cavity 1221 or the curved surface. A bottom surface portion in contact with the pipe connector 123 is fitted.
A corresponding trigger device 17 is installed above the contact piece 1213 on the u-shaped bracket 1212, and the trigger device 17 is fixed on the housing 11 through screws or fasteners. The corresponding trigger device 18 is installed below the contact piece 1214 on the u-shaped bracket 1212, and the trigger device 18 is fixed on the housing 11 through screws or fasteners. The contact piece 1213 corresponds to the trigger device 17, and the contact piece 1214 corresponds to the trigger device 18. The trigger device 17 and trigger device 18 are a kind of device to open and close the circuit, which can be set into contact switch and induction switch, and is compatible with contact piece 1213 and contact piece 1214. The device 1 also includes a circuit board 14 and a driving circuit which is compatible with the circuit board 14. The circuit board 14 is installed in the inner side of the housing 11. The blower assembly 15 comprises a motor assembly and an electric heating wire installed on the inner side of the blower assembly 15 housing; motor assembly, electric heating wire, trigger device 17 are electrically connected with the circuit board 14. Twist the control handle 1211 downward, u-shaped bracket 1212 linkage pipe connector 123 on the control handle 1211 moves downward, when the pipe connector 123 is stuck into the annular arc convex platforms 12312 on the bottom face of the base plate 1231 into the annular groove 1222 on the bottom of the cavity 1221. The contact piece 1213 on u-shaped bracket 1212 is in contact with trigger device 17. At this time, turn on the corresponding switch button on the device 1. The motor assembly in the blower assembly 15 corresponding switch button on the device 1. The motor assembly in the blower assembly 15 is energized with the electric heater to start, and blower assembly 15 blows air outward; the vacuum assembly 16 also includes a motor assembly mounted on the inside side of the vacuum assembly 16 housing and a dust cup with air filter assembly mounted in front of the motor assembly. The motor assembly and trigger device 18 are electrically connected with circuit board 14, and the control handle 1211 is twisted upward. The u-shaped bracket 1212 on the control handle 1211 is connected to the pipe connector 123. When the annular arc convex platforms 12312 on the bottom face of the base plate 1231 of the pipe connector 123 is stuck into the annular groove 1222 on the inside of the cavity 1221, the contact piece 1214 on the u-shaped bracket 1212 is in contact with the trigger device 18. At this time, turn on the corresponding switch button on the device 1, and the motor assembly in the vacuum assembly 16 is powered on. The vacuum assembly 16 draws air or dust into the dust cup.
Working of the invention: in the invention, the air duct switching assembly 12 is used in this invention. First, it connects the plug-in wire on the device 1 to the adaptive power supply, and then connect the adaptive external connection hose on the intake and outlet of the device 1. When the user needs the blowing function/suction function, simply by twisting the control handle 1211 on the rotating assembly 121 upward or downward. The u-shaped bracket 1212 rotates upward or downward, moves up or down with the convex platforms 1234 on base plate 1231 through the upper limit sliding hole 12121 of u-shaped bracket 1212, and links the pipe connector 123 at the same time. If the pipe connector 123 moves to the air outlet connection port on air duct switching assembly 12, this is the blowing mode. When the annular arc convex platforms 12312 on the bottom face of the base plate 1231 is stuck into the annular groove 1222 on the inside of the cavity 1221, the contact piece 1213 on the u-shaped bracket 1212 is in contact with the trigger device 17. At this time, turn on the corresponding switch button on the device 1. The circuit board 14 and the driving circuit compatible with circuit board 14 (the driving circuit belongs to the prior art, and will not be explained in detail here) connect the power supply of the blower assembly 15. The motor assembly in the blower assembly 15 is energized with the electric heater to start, and the blower assembly 15 blew the air outward. If the pipe connector 123 moves to the air inlet connection port on the air duct switching assembly 12. This is suction mode. When the annular arc convex platforms 12312 on the bottom face of the base plate 1231 for the pipe connector 123 is stuck into the annular groove 1222 on the bottom of the cavity 1221, the contact piece 1214 on the u-shaped bracket 1212 is in contact with the trigger device 18. At this time, turn on the corresponding switch button on the device 1. Circuit board 14 is connected to the power supply of the vacuum assembly 16. The motor in the vacuum assembly 16 is energized. The device’s blowing mode and suction mode are very easy to operate, and the structure is simple.
Wherein, the air inlet connecting port 1224 of the air duct switching assembly 12 is connected to the dust cup with air filter assembly of the vacuum assembly 16 through the pipe connector 123, and dust cup with air filter assembly is used to filter and store the inhaled dust and hair.
While the invention has been described in terms of preferred embodiments, those skilled in the art will recognize that the invention can be practiced with modifications within the spirit and scope of the appended claims.
