Handheld wireless cleaning tool

Abstract

A handheld wireless cleaning tool comprises a cleaning shell which is provided with a cleaning barrel part and a handheld shell part; the liquid storage box is connected to the rear end of the cleaning barrel part, at least part of the liquid storage box is in a perspective state, a water adding opening is formed in the upper end of the liquid storage box, and a sealing cover is detachably connected to the water adding opening; the brush head assembly is assembled at the front end part of the cleaning barrel body part; the pressure pump is respectively connected and communicated with the liquid storage box and the brush head assembly through liquid conveying pipes; the driving mechanism is in transmission connection fit with the brush head assembly; and a circuit board, a battery and a button assembly. The liquid storage box is at least partially in a perspective state, so that a user can intuitively observe the residual amount of the liquid in the liquid storage box, and the liquid can be supplemented in time; the liquid conveying pipe is directly in butt joint with the brush head assembly, so that the liquid spraying position is located in the area covered by the brush head, the brush head can make contact with the liquid immediately, and the more uniform and good cleaning effect is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of cleaning tools, and in particular to a handheld wireless cleaning tool. Background Technology

[0002] In daily life, furniture such as sofas, coffee tables, and cabinets easily accumulate dust and stains after a period of use, affecting their appearance; therefore, regular cleaning is necessary. Currently, most cleaning is done by hand, applying cleaning agent to a damp cloth before cleaning the furniture surface. This method is inefficient, and direct contact with the cleaning agent during cleaning can be harsh on the hands, while also not effectively removing stains. Handheld electric cleaning devices are available on the market, using an electric rotating brush. These require applying cleaning agent to the stains before using the brush, a more cumbersome process with lower cleaning efficiency.

[0003] Example 1 of the prior art, referring to patent document CN206462954U, discloses a handheld electric cleaner with a liquid filling function, including a handle, a cleaner head, and a brush head. The handle is equipped with a speed control switch and a liquid filling button, and the handle contains a battery box, a speed control module, and a hand pump. The cleaner head contains a motor electrically connected to the battery, the speed control switch, and the speed control module. The motor drives the brush head, and the area outside the motor is set as a liquid-holding cavity. The liquid filling port of the liquid-holding cavity is located at the upper end of the cleaner head, and the liquid filling port is equipped with a plug. The brush head includes a support plate and a sponge head. The sponge head is fixed on the support plate. The support plate has a three-blade wheel-type hollow structure, and the hollow part allows liquid to enter the sponge head. A fence is set around the edge of the support plate. The liquid inlet of the hand pump is located in the liquid-holding cavity, and the liquid outlet is located above the brush head support plate. Analysis and comparison revealed several flaws in Example 1, including: 1. The liquid reservoir and the main body are integrated, thus requiring a higher level of sealing within the main body. Any localized leakage would render the entire product unusable; 2. The liquid inside the reservoir cannot be directly observed, meaning users cannot promptly detect low liquid levels, affecting usability; 3. The use of a hand pump compromises the stability of the dispensing process, and its operation is more cumbersome; 4. The internal connection and transmission structures of the components are not clearly shown, making it impossible to replicate the product.

[0004] Example 2 of the prior art, referring to patent document CN215016770U, discloses a handheld electric cleaning device, including a main body, a handle disposed on the main body, and a brush head detachably installed below the main body; the inner cavity of the main body is provided with a power supply, a motor, and a liquid storage tank; the main body is provided with a function panel, and the function panel is provided with a switch assembly; the power supply and the motor are electrically connected to the switch assembly; the motor is connected to the brush head and is used to drive the brush head to rotate; the switch assembly includes a control switch and a liquid dispensing switch; the liquid storage tank is provided with a liquid filling port and a liquid dispensing port, and the bottom of the main body is also provided with a liquid dispensing nozzle; the input end of the pump body is connected to the liquid dispensing port, and the output end of the pump body is connected to the liquid dispensing nozzle. Analysis and comparison revealed several defects in Example 2, including: 1. The liquid reservoir is an integral part of the main body, thus requiring a higher level of sealing within the main body. Any localized leakage would render the entire product unusable; 2. The liquid inside the reservoir cannot be directly observed, meaning users cannot promptly detect liquid shortages, affecting the cleaning effect; 3. The dispensing nozzle is located between the two brush heads and is a certain distance from each brush head. Therefore, after spraying, the brush head needs to be brought close to the liquid to achieve the desired cleaning effect. This is cumbersome and prone to uneven application, resulting in inconsistent cleaning results. Summary of the Invention

[0005] In order to overcome the above-mentioned shortcomings of the prior art, this utility model provides a handheld wireless cleaning tool.

[0006] The technical solution of this utility model to solve its technical problem is: a handheld wireless cleaning tool, comprising:

[0007] A cleaning housing has a cleaning cylinder portion and a handheld housing portion, wherein the cleaning cylinder portion has a first chamber and the handheld housing portion has a second chamber;

[0008] A liquid storage box is connected to the rear end of the cleaning cylinder. The liquid storage box is at least partially transparent, and a water inlet is provided at the upper end of the liquid storage box. A sealing cap is detachably connected to the water inlet.

[0009] The brush head assembly is mounted on the front end of the cleaning cylinder.

[0010] A pressure pump is disposed in the second chamber and is connected and energized to the reservoir and the brush head assembly via infusion tubing.

[0011] A drive mechanism is disposed in the first chamber and is connected to the brush head assembly in a transmission manner.

[0012] A circuit board is disposed in the second chamber and is connected to the pressure pump and the drive device for communication and control.

[0013] The battery is disposed in the second chamber and is electrically connected to the pressure pump, the drive mechanism and the circuit board.

[0014] A button assembly is disposed on the side wall of the handheld housing portion, and the button assembly forms a control connection with the circuit board.

[0015] The above-mentioned structural technology has many advantages over similar products. First, the liquid storage box is partially transparent, allowing users to directly observe the remaining liquid level inside, so as to replenish it in time through the water inlet and ensure a continuous and stable liquid output during use. Second, the built-in battery eliminates the spatial constraints of cables on handheld cordless cleaning tools, allowing users to move freely and perform all-around cleaning. Third, the pressure pump provides the power for liquid flow, accelerating the liquid outward spray. Fourth, the infusion tube directly connects to the brush head assembly, ensuring that the liquid is sprayed into the area covered by the brush head, allowing the brush head to immediately contact the liquid (usually cleaning solution or water) and achieve a more uniform and better cleaning effect.

[0016] Optionally, the liquid storage box is detachably connected to the rear end of the cleaning cylinder via a snap-fit ​​structure;

[0017] The front end of the liquid storage box is provided with a liquid outlet, and the rear end of the cleaning cylinder is provided with a connector hose. The liquid outlet can be inserted into the connector hose to form a sealed fit, and the front end of the connector hose is connected to and conducts through the infusion tube.

[0018] Unlike existing technologies, the liquid storage box in this invention adopts a detachable structure, thus the liquid storage box and the cleaning shell are molded separately, reducing the molding difficulty. Furthermore, the liquid storage box does not encroach on the internal space of the cleaning shell, which is beneficial for the spatial layout of other components, making the cleaning shell smaller and easier for users to hold and use. In addition, the liquid outlet on the liquid storage box is connected to the infusion tube through a connector tubing, which not only realizes the function of conducting liquid but also achieves a sealing fit at the joint to prevent liquid leakage.

[0019] In some preferred embodiments of this utility model, the drive mechanism includes a motor, an input gear sleeved on the output shaft of the motor, a first transmission gear and a second transmission gear respectively meshing with the input gear, an output gear meshing with the first transmission gear, and a first rotating shaft and a second rotating shaft.

[0020] The first rotating shaft and the output gear form a transmission connection, and the second transmission gear and the second rotating shaft are an integral part;

[0021] The brush head assembly includes a first brush head and a second brush head, wherein the first brush head is mounted on the front end of the first rotating shaft and the second brush head is mounted on the front end of the second rotating shaft.

[0022] By adopting the above technical solution, a single motor with dual outputs is achieved, enabling the motor to drive the first and second brush heads to rotate together and perform their respective cleaning functions. Furthermore, the transmission structure between the motor and the first brush head has an additional transmission gear (specifically, an output gear) compared to the transmission structure between the motor and the second brush head. This causes the first and second brush heads to rotate in opposite directions, allowing the liquid (cleaning solution) to flow in different directions, resulting in a more superior brush head cleaning effect.

[0023] Preferably, the first rotating shaft has a first through hole through itself, the second rotating shaft passes through the first through hole, and the second rotating shaft and the first rotating shaft form a clearance fit;

[0024] The first brush head has a second through hole that penetrates it, the second rotating shaft passes through the second through hole, and the second brush head and the first brush head form a clearance fit.

[0025] By setting the first and second through holes, a structural scheme approximating the shaft-in-shaft is formed. Specifically, the second rotating shaft passes through the first rotating shaft, and the second brush head passes through the first brush head. The structural space design is more reasonable, the component distribution is more compact, and the overall volume can be effectively reduced.

[0026] In this utility model, a support assembly is provided in the first chamber, and the support assembly includes a cylindrical support, an annular support and a motor support;

[0027] The outer wall of the cylindrical support is tightly fitted to the inner wall of the first chamber;

[0028] The annular bracket is located inside the cylindrical bracket, and the annular bracket encloses the output gear.

[0029] The motor bracket is arranged along the axial direction of the cleaning cylinder. The front end of the motor bracket abuts against the rear end of the annular bracket through several balance blocks. The periphery of the motor bracket is fixedly connected to the cylindrical bracket through a snap-fit ​​structure.

[0030] The motor is mounted on a motor bracket, and a transmission chamber is formed between the motor bracket and the annular bracket. The input gear, the first transmission gear, and the second transmission gear are all located in the transmission chamber.

[0031] Furthermore, a rigid tube is inserted through the second rotating shaft, and the rear end of the rigid tube is connected to and conducts through an infusion tube to a pressure pump. The second brush head has an outlet, and the front end of the rigid tube is connected to and conducts through the outlet.

[0032] Optionally, the front end of the rigid tube is provided with a pressure boosting block, and the pressure boosting block has one or more fine holes.

[0033] In some preferred embodiments of this utility model, a first rotating bearing is provided on the outer periphery of the first rotating shaft, and a second rotating bearing is provided on the outer periphery of the second rotating shaft.

[0034] Furthermore, a first sealing ring is provided on the outer periphery of the first rotating shaft, a second sealing ring is provided on the outer periphery of the second rotating shaft, and a third sealing ring is provided on the outer periphery of the rigid tube.

[0035] More specifically, the first sealing ring, the second sealing ring, and the third sealing ring each include an annular body, a first rib, and a second rib protruding from the outer periphery of the annular body.

[0036] In some preferred embodiments of this utility model, the handheld housing is provided with a multi-functional bracket, which is arc-shaped and is fixedly connected to the handheld housing by fasteners.

[0037] The pressure pump is located on one side of the multi-functional bracket, and the circuit board is located on the other side of the multi-functional bracket.

[0038] The handheld housing is provided with a charging interface, which is electrically connected to the battery.

[0039] The beneficial effects of this utility model are as follows:

[0040] First, the liquid storage box should be partially transparent, allowing users to visually observe the remaining amount of liquid inside, so that it can be replenished in a timely manner through the water inlet and ensure a continuous and stable liquid output during use.

[0041] Second, the built-in battery eliminates the spatial constraints of cables on handheld cordless cleaning tools, allowing users to move freely and perform all-around cleaning.

[0042] Third, the pressure pump provides the power for liquid flow, enabling the liquid to be ejected outward at an accelerated speed.

[0043] Fourth, the infusion tube is directly connected to the brush head assembly, so that the liquid is sprayed into the area covered by the brush head, thus allowing the brush head to immediately come into contact with the liquid (usually cleaning solution or water) and achieve a more uniform and better cleaning effect.

[0044] 5. The transmission structure between the motor and the first brush head has an additional transmission gear (specifically, an output gear) compared to the transmission structure between the motor and the second brush head. This causes the first and second brush heads to rotate in opposite directions, allowing the liquid (cleaning solution) to flow in different directions, thus achieving a more superior brush head cleaning effect. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the front-end structure of this utility model.

[0046] Figure 2 This is a schematic diagram of the back-end structure of this utility model.

[0047] Figure 3 This is a schematic diagram of the structure when the sealing cap is open relative to the liquid storage box.

[0048] Figure 4 This is a structural breakdown diagram of the cleaning housing and the liquid storage box.

[0049] Figure 5 This is a structural breakdown diagram of the cleaning housing, the first brush head, and the second brush head.

[0050] Figure 6 This is a schematic diagram of a partial structure within the second chamber.

[0051] Figure 7 This is a schematic diagram of the internal structure of this utility model.

[0052] Figure 8 This is a schematic diagram showing a partial structural breakdown within the first chamber.

[0053] Figure 9 This is an enlarged schematic diagram of a portion of the structure within the first chamber.

[0054] Figure 10 This is a structural breakdown diagram of the second brush head and the second rotating shaft.

[0055] Figure 11 This is a schematic diagram of the second sealing ring.

[0056] In the diagram: 1. Cleaning housing; 11. Cleaning cylinder section; 111. First chamber; 12. Handheld housing section; 121. Second chamber; 13. Support assembly; 131. Cylindrical support; 132. Ring support; 133. Motor support; 134. Balance weight; 135. Snap-fit ​​structure; 136. Transmission chamber; 14. Multifunctional support; 15. Charging interface; 2. Liquid storage box; 21. Water inlet; 22. Sealing cap; 23. Twist-lock structure; 24. Dispensing nozzle; 25. Connecting hose; 3. Brush head assembly; 31. First brush head; 32. Second brush head; 321. Dispensing port; 4. Pressure pump; 41. Infusion pump 5. Pipe; 5. Drive mechanism; 51. Motor; 52. Input gear; 53. First transmission gear; 54. Second transmission gear; 55. Output gear; 56. First rotating shaft; 561. First through hole; 562. First rotating bearing; 563. First sealing ring; 57. Second rotating shaft; 571. Second through hole; 572. Second rotating bearing; 573. Second sealing ring; 5731. Annular body; 5732. First rib; 5733. Second rib; 574. Rigid tube; 5741. Third sealing ring; 575. Pressure booster block; 5751. Fine hole; 6. Circuit board; 7. Battery; 8. Button assembly. Detailed Implementation

[0057] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments are merely specific descriptions of the present invention, and their purpose is to enable those skilled in the art to better understand the technical solution of the present invention, and should not be regarded as limitations on the present invention.

[0058] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0059] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0060] Example 1

[0061] Reference Figures 1-10 A handheld cordless cleaning tool includes: a cleaning housing 1 having a cleaning cylinder portion 11 and a handheld housing portion 12, wherein the cleaning cylinder portion 11 has a first chamber 111 and the handheld housing portion 12 has a second chamber 121; a liquid storage tank 2 connected to the rear end of the cleaning cylinder portion 11, the liquid storage tank 2 being at least partially transparent, and having a water inlet 21 at its upper end, the water inlet 21 being detachably connected to a sealing cap 22; a brush head assembly 3 assembled to the front end of the cleaning cylinder portion 11; and a pressure pump 4 disposed in the second chamber 121, and the pressure... Pump 4 is connected and energized to the reservoir 2 and brush head assembly 3 via infusion tubing 41; drive mechanism 5 is disposed in the first chamber 111 and forms a transmission connection with brush head assembly 3; circuit board 6 is disposed in the second chamber 121 and forms a communication and control connection with pressure pump 4 and drive mechanism 3; battery 7 is disposed in the second chamber 121 and forms an electrical connection with pressure pump 4, drive mechanism 5 and circuit board 6; button assembly 8 is disposed on the side wall of handheld housing 12 and forms a control connection with circuit board 6. In use, the user operates button assembly 8, which sends control signals to pressure pump 4 and drive mechanism 5 via circuit board 6 to achieve their respective on / off functions.

[0062] The above-mentioned structural technical solution has many advantages over similar products. First, the liquid storage box 2 is at least partially transparent, allowing users to intuitively observe the remaining amount of liquid inside, so as to replenish it in time through the water inlet 21 and ensure a continuous and stable liquid output during use. Second, the built-in battery 7 eliminates the spatial constraints of cables on handheld cordless cleaning tools, allowing users to move freely and perform all-round cleaning. Third, the pressure pump 4 provides the power for liquid flow, accelerating the liquid outward spray. Fourth, the infusion tube 41 directly connects to the brush head assembly 3, so that the liquid is sprayed into the area covered by the brush head, allowing the brush head to immediately contact the liquid (usually cleaning solution or water) and achieve a more uniform and better cleaning effect.

[0063] Optionally, refer to Figure 4The liquid storage box 2 is detachably connected to the rear end of the cleaning cylinder 11 via a snap-fit ​​structure 23. A liquid outlet 24 is provided at the front end of the liquid storage box 2, and a connector hose 25 is provided at the rear end of the cleaning cylinder 11. The liquid outlet 24 can be inserted into the connector hose 25 to form a sealed fit, and the front end of the connector hose 25 is connected to and conducts through the infusion tube 41. Unlike existing technologies, the liquid storage box 2 in this invention adopts a detachable structure, thus the liquid storage box 2 and the cleaning shell 1 are molded separately, reducing molding difficulty. Furthermore, the liquid storage box 2 does not encroach on the internal space of the cleaning shell 1, which is beneficial for the spatial layout of other components, making the cleaning shell 1 smaller and easier for users to hold and use. In addition, the liquid outlet 24 on the liquid storage box 2 is connected to the infusion tube 41 via the connector hose 25, which not only achieves the function of conducting liquid but also achieves a sealed fit at the joint to prevent liquid leakage.

[0064] It is worth mentioning that, since the liquid storage box 2 and the cleaning shell 1 adopt a split molding and detachable structure, users can use different liquid storage boxes 2 and cleaning shell 1 to adapt to their own needs and meet the cleaning needs of different scenarios.

[0065] Example 2

[0066] In this preferred embodiment, refer to Figures 7-8 The drive mechanism 5 includes a motor 51, an input gear 52 sleeved on the output shaft of the motor 51, a first transmission gear 53 and a second transmission gear 54 respectively meshing with the input gear 52, an output gear 55 meshing with the first transmission gear 53, and a first rotating shaft 56 and a second rotating shaft 57; wherein the first rotating shaft 56 and the output gear 55 form a transmission connection, and the second transmission gear 54 and the second rotating shaft 57 are integral parts; the brush head assembly 3 includes a first brush head 31 and a second brush head 32, the first brush head 31 is assembled at the front end of the first rotating shaft 56, and the second brush head 32 is assembled at the front end of the second rotating shaft 57.

[0067] By adopting the above technical solution, the transmission function of a single motor 51 with dual outputs is realized. Thus, motor 51 can drive the first brush head 31 and the second brush head 32 to rotate together and achieve their respective cleaning functions. Furthermore, the transmission structure between motor 51 and the first brush head 31 has an additional transmission gear (specifically, output gear 55) compared to the transmission structure between motor 51 and the second brush head 32. This causes the first brush head 31 and the second brush head 32 to rotate in opposite directions, allowing the liquid (cleaning fluid) to flow in different directions, thereby achieving a more superior brush head cleaning effect.

[0068] Preferably, refer to Figure 8The first rotating shaft 56 has a first through hole 561 passing through it, and the second rotating shaft 57 passes through the first through hole 561, with the second rotating shaft 57 and the first rotating shaft 56 forming a clearance fit. The first brush head 31 has a second through hole 571 passing through it, and the second rotating shaft 57 passes through the second through hole 571, with the second brush head 32 and the first brush head 31 forming a clearance fit. The arrangement of the first through hole 561 and the second through hole 571 forms an approximate shaft-within-a-shaft structure. Specifically, the second rotating shaft 57 passes through the first rotating shaft 56, and the second brush head 32 passes through the first brush head 31. This design is more rational in terms of structural space, the components are more compactly distributed, and the overall volume is effectively reduced.

[0069] In some preferred embodiments of this utility model, reference is made to Figure 8 A first rotary bearing 562 is provided on the outer periphery of the first rotating shaft 56, and a second rotary bearing 572 is provided on the outer periphery of the second rotating shaft 57. The first rotary bearing 562 and the second rotary bearing 572 respectively support the rotation of the first rotating shaft 56 and the second rotating shaft 57, transmit loads, reduce friction and energy loss, ensure rotational accuracy and stability, and extend the service life of the machinery.

[0070] On the other hand, refer to Figure 8 A first sealing ring 563 is provided on the outer periphery of the first rotating shaft 56, a second sealing ring 573 is provided on the outer periphery of the second rotating shaft 57, and a third sealing ring 5741 is provided on the outer periphery of the rigid tube 574. The first sealing ring 563, the second sealing ring 573, and the third sealing ring 5741 all serve to physically isolate and seal the space, preventing foreign objects from entering.

[0071] More specifically, refer to Figure 11 The first sealing ring 563, the second sealing ring 573, and the third sealing ring 5741 all include an annular body 5731 and a first rib 5732 and a second rib 5733 protruding from the outer periphery of the annular body 5731. The double-layer ribs, through a design concept of "structural redundancy + functional zoning," achieve a comprehensive improvement in sealing performance without significantly increasing the volume of the sealing rings or the complexity of installation. Its core value lies in achieving high reliability at a low cost, making it particularly suitable for scenarios sensitive to leakage, difficult to maintain, or complex operating conditions. During design, attention must be paid to the spacing, height, angle, and material matching of the ribs to fully leverage the synergistic effect of the double-layer structure.

[0072] Example 3

[0073] Based on the structure of any of the foregoing embodiments, this embodiment provides a preferred installation structure scheme, as follows:

[0074] I. Installation structure inside the cleaning cylinder 11: Refer to Figures 7-9 The first chamber 111 is provided with a support assembly 13, which includes a cylindrical support 131, an annular support 132, and a motor support 133. The outer wall of the cylindrical support 131 is tightly fitted to the inner wall of the first chamber 111. The annular support 132 is located inside the cylindrical support 131. The output gear 55 is preferably a sun gear, which can provide a larger reduction ratio. The annular support encloses the output gear 55, providing good protection for it. The motor support 133 is arranged along the axial direction of the cleaning cylinder 11, and the front end of the motor support 133 is connected by several balance blocks. 134 abuts against the rear end of the annular bracket 132. The periphery of the motor bracket 133 is fixedly connected to the cylindrical bracket 131 through the snap-fit ​​structure 135, realizing the connection of related components and providing good structural support. The motor 51 is installed on the motor bracket 133. The motor bracket 133 and the annular bracket 132 form a transmission chamber 136. The input gear 52, the first transmission gear 53 and the second transmission gear 54 are all located in the transmission chamber 136, thereby providing a relatively stable operating space for the input gear 52, the first transmission gear 53 and the second transmission gear 54, and playing a good protective role.

[0075] Furthermore, referring to Figure 8 , Figure 10 A rigid tube 574 is inserted through the second rotating shaft 57. The rear end of the rigid tube 574 is connected to and conducts through the infusion tube 41 to the pressure pump 4. The second brush head 32 has an outlet 321, and the front end of the rigid tube 574 is connected to and conducts through the outlet 321. The rigid tube 574 is used at the end of the entire infusion path for two reasons: first, it can adapt to the drive mechanism 5; second, the rigid tube 574 has a more stable shape, preventing bending and blockage. Optionally, a pressure boosting block 575 is provided at the front end of the rigid tube 574. The pressure boosting block 575 has one or more fine holes 5751. When the liquid passes through the fine holes 5751, the structure of reducing the unit flow area increases the pressure of the liquid when it is sprayed out, preventing it from sticking to the wall.

[0076] II. Mounting structure within the handheld housing 12: Refer to Figure 6The handheld housing 12 is equipped with a multi-functional support 14, which is arc-shaped and is fixedly connected to the handheld housing 12 by fasteners. A pressure pump 4 is located on one side of the multi-functional support 14, and a circuit board 6 is located on the other side. The pressure pump 4 and circuit board 6 are respectively mounted on both sides of the multi-functional support 14, providing good structural support, and are then fixedly connected to the handheld housing 12 by fasteners (preferably screws). Furthermore, the handheld housing 12 is provided with a charging interface 15, which is electrically connected to the battery 7 to provide power to the battery 7.

[0077] It is worth noting that the other technical solutions of this utility model are all existing technologies, and therefore will not be described in detail.

[0078] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the concept of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A handheld cordless cleaning tool, characterized in that, Including: A cleaning housing (1) having a cleaning cylinder portion (11) and a handheld housing portion (12), wherein the cleaning cylinder portion (11) has a first chamber (111) and the handheld housing portion (12) has a second chamber (121); The liquid storage box (2) is connected to the rear end of the cleaning cylinder (11). The liquid storage box (2) is at least partially transparent, and a water inlet (21) is provided at the upper end of the liquid storage box (2). A sealing cap (22) is detachably connected to the water inlet (21). The brush head assembly (3) is mounted on the front end of the cleaning cylinder (11); A pressure pump (4) is disposed in the second chamber (121) and is connected and energized to the reservoir (2) and the brush head assembly (3) respectively via an infusion tube (41); The drive mechanism (5) is disposed in the first chamber (111) and the drive mechanism (5) forms a transmission connection with the brush head assembly (3); Circuit board (6) is disposed in the second chamber (121) and circuit board (6) forms a communication control connection with pressure pump (4) and drive device respectively; The battery (7) is disposed in the second chamber (121) and is electrically connected to the pressure pump (4), the drive mechanism (5) and the circuit board (6); A button assembly (8) is disposed on the side wall of the handheld housing (12), and the button assembly (8) forms a control connection with the circuit board (6).

2. The handheld cordless cleaning tool according to claim 1, characterized in that: The liquid storage box (2) is detachably connected to the rear end of the cleaning cylinder (11) via a snap fastener structure (23); The front end of the liquid storage box (2) is provided with a liquid outlet (24), and the rear end of the cleaning cylinder (11) is provided with a connector hose (25). The liquid outlet (24) can be inserted into the connector hose (25) to form a sealed fit, and the front end of the connector hose (25) is connected to and conducts through the infusion tube (41).

3. The handheld cordless cleaning tool according to claim 1, characterized in that: The drive mechanism (5) includes a motor (51), an input gear (52) sleeved on the output shaft of the motor (51), a first transmission gear (53) and a second transmission gear (54) respectively meshing with the input gear (52), an output gear (55) meshing with the first transmission gear (53), and a first rotating shaft (56) and a second rotating shaft (57); The first rotating shaft (56) and the output gear (55) form a transmission connection, and the second transmission gear (54) and the second rotating shaft (57) are an integral piece; The brush head assembly (3) includes a first brush head (31) and a second brush head (32). The first brush head (31) is mounted on the front end of the first rotating shaft (56), and the second brush head (32) is mounted on the front end of the second rotating shaft (57).

4. The handheld cordless cleaning tool according to claim 3, characterized in that: The first rotating shaft (56) has a first through hole (561) through itself, the second rotating shaft (57) passes through the first through hole (561), and the second rotating shaft (57) and the first rotating shaft (56) form a clearance fit. The first brush head (31) has a second through hole (571) that penetrates it, the second rotating shaft (57) passes through the second through hole (571), and the second brush head (32) and the first brush head (31) form a clearance fit.

5. The handheld cordless cleaning tool according to claim 3, characterized in that: The first chamber (111) is provided with a support assembly (13), which includes a cylindrical support (131), an annular support (132) and a motor support (133); The outer wall of the cylindrical support (131) is in close contact with the inner wall of the first chamber (111); The annular bracket (132) is located inside the cylindrical bracket (131), and the annular bracket encloses the output gear (55); The motor bracket (133) is arranged along the axial direction of the cleaning cylinder (11). The front end of the motor bracket (133) abuts against the rear end of the annular bracket (132) through several balance blocks (134). The periphery of the motor bracket (133) is fixedly connected to the cylindrical bracket (131) through a snap-fit ​​structure (135). The motor (51) is mounted on the motor bracket (133), and a transmission chamber (136) is formed between the motor bracket (133) and the ring bracket (132). The input gear (52), the first transmission gear (53) and the second transmission gear (54) are all located in the transmission chamber (136).

6. The handheld cordless cleaning tool according to claim 4, characterized in that: A rigid tube (574) is inserted through the second rotating shaft (57). The rear end of the rigid tube (574) is connected to the pressure pump (4) through the infusion tube (41) and is in communication. The second brush head (32) has an outlet (321). The front end of the rigid tube (574) is connected to the outlet (321) and is in communication. The front end of the rigid tube (574) is provided with a pressure boosting block (575), and the pressure boosting block (575) has one or more fine holes (5751).

7. The handheld cordless cleaning tool according to claim 6, characterized in that: A first rotating bearing (562) is provided on the outer periphery of the first rotating shaft (56), and a second rotating bearing (572) is provided on the outer periphery of the second rotating shaft (57).

8. The handheld cordless cleaning tool according to claim 7, characterized in that: A first sealing ring (563) is provided on the outer periphery of the first rotating shaft (56), a second sealing ring (573) is provided on the outer periphery of the second rotating shaft (57), and a third sealing ring (5741) is provided on the outer periphery of the rigid tube (574).

9. The handheld cordless cleaning tool according to claim 8, characterized in that: The first sealing ring (563), the second sealing ring (573) and the third sealing ring (5741) each include an annular body (5731), a first rib (5732) and a second rib (5733) protruding on the outer periphery of the annular body (5731).

10. The handheld cordless cleaning tool according to claim 1, characterized in that: The handheld housing (12) is provided with a multi-functional bracket (14), which is arc-shaped and is fixedly connected to the handheld housing (12) by fasteners. The pressure pump (4) is located on one side of the multi-functional bracket (14), and the circuit board (6) is located on the other side of the multi-functional bracket (14). The handheld housing (12) is provided with a charging interface (15), which is electrically connected to the battery (7).

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