Handheld electric wall joint cleaning device

By designing a handheld electric wall crevic cleaning device, which uses a disc-shaped cleaning brush head and a drive motor, the problem of low cleaning efficiency and high labor intensity of existing tools is solved, achieving efficient cleaning of wall crevices and making it suitable for exterior wall repair.

CN224119962UActive Publication Date: 2026-04-14CHINA CONSTR SEVENTH ENG DIVISION CORP LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing wall crack cleaning tools are inefficient and labor-intensive, making it difficult to meet the needs of exterior wall repair in old residential areas.

Method used

A handheld electric wall grout cleaning device was designed, which uses a disc-shaped cleaning brush head and a drive motor. The electric rotation of the cleaning brush head is achieved through a connecting rod structure, and a friction damping hinge and a limit block are combined to improve the ease of operation and efficiency.

Benefits of technology

It achieves efficient cleaning of dust and impurities in wall crevices, reduces manual labor intensity, improves crevic cleaning efficiency, and is suitable for various wall renovation and cleaning operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a handheld electric wall joint cleaning device. The handheld electric wall joint cleaning device comprises a machine body, a connecting rod, a driving motor and a cleaning brush head. A mobile power supply and a controller are arranged in the machine body, a connecting rod extending forwards is arranged at the front end of the machine body, a mounting plate is fixedly connected to the end of the connecting rod, and a rotating shaft is horizontally and rotatably arranged on the mounting plate perpendicular to the connecting rod; the cleaning brush head is disc-shaped and sleeves one end of the rotating shaft; the driving motor is fixedly mounted on the mounting plate, an output shaft of the driving motor is in transmission connection with the other end of the rotating shaft, and the driving motor is in wire connection with the mobile power supply and the controller. Dust and impurities in wall gaps can be efficiently cleaned, the gap cleaning efficiency is greatly improved, the labor intensity of workers is relieved, and the wall gap cleaning device is suitable for various wall renovation and cleaning operation scenes.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a handheld electric wall cleaning device. Background Technology

[0002] With the rapid development of my country's construction industry and the improvement of technology, a large number of exterior wall decoration materials have entered the market for the facades of older residential communities. Due to their age and the adverse effects of the external environment, these walls often exhibit fading and pollution. Furthermore, some exterior walls use low-quality paint, have poor construction techniques, and use substandard construction processes, resulting in substandard coating quality, uneven wall surfaces, uneven paint thickness, and uneven color. Therefore, exterior wall repair is crucial for the renovation and refurbishment of older residential communities.

[0003] Cleaning wall cracks is a crucial part of exterior wall repair. Traditional cleaning tools such as Figure 1 As shown, it consists of a handheld connecting rod and a cleaning brush. When using it, the person holds the connecting rod and uses the cleaning brush to clean the wall cracks. This method has low cleaning efficiency and high labor intensity.

[0004] Therefore, it is necessary to study a handheld electric wall cleaning device. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a handheld electric wall crack cleaning device, which can effectively solve the problems of low cleaning efficiency and high labor intensity of existing wall crack cleaning tools.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A handheld electric wall grout cleaning device includes a main body, a connecting rod, a drive motor, and a cleaning brush head;

[0008] The main body of the device is equipped with a mobile power supply and a controller. The front end of the main body of the device is provided with a connecting rod that extends forward. The end of the connecting rod is fixedly connected to a mounting plate. A rotating shaft is provided on the mounting plate that is perpendicular to the connecting rod and rotates horizontally.

[0009] The cleaning brush head is disc-shaped and is fitted onto one end of the rotating shaft.

[0010] The drive motor is fixedly mounted on the mounting plate, and the output shaft of the drive motor is connected to the other end of the rotating shaft. The drive motor is connected to the power supply and controller wires.

[0011] Furthermore, the main body of the device has a receiving area with a lower opening for accommodating the connecting rod and the cleaning brush head;

[0012] The connecting rod is hinged to the main body of the fuselage via a friction damping hinge, allowing the connecting rod to rotate downwards into the receiving area and maintain its angle.

[0013] Furthermore, the main body of the fuselage includes a control compartment and a cable tray, and the mobile power supply and controller are both located in the control compartment;

[0014] The rear end of the cable tray is fixedly mounted on the control compartment, and the front end of the cable tray is hinged to the connecting rod via a friction damping hinge, forming an accommodating area between the control compartment and the cable tray.

[0015] Furthermore, a handle is provided on the rear side wall of the control compartment, and a lifting handle is provided on the top of the cable tray.

[0016] Furthermore, the cleaning brush head rotates downwards perpendicular to the wall; a limit block is fixed on the upper surface of the rear end of the connecting rod, and when the connecting rod rotates forward to the horizontal, the limit block abuts against the front end of the main body of the machine.

[0017] Furthermore, the end of the rotating shaft connected to the cleaning brush head is provided with a stepped surface, and an end cap is detachably connected to this end. The cleaning brush head is distributed between the stepped surface and the end cap.

[0018] The beneficial effects of the above technical solution are:

[0019] This invention utilizes a disc-shaped cleaning brush head, combined with a connecting rod structure equipped with a drive motor, to achieve electric rotation drive of the cleaning brush head. This enables efficient cleaning of dust and impurities in wall crevices, significantly improving cleaning efficiency. The disc-shaped cleaning brush head has good conformability, resulting in more thorough cleaning during rotation. It is also easy to operate by hand. Compared to traditional manual wall crevic cleaning tools, it effectively solves the problems of low cleaning efficiency and high labor intensity associated with existing manual wall crevic cleaning tools, reducing manual labor intensity and improving work efficiency. It is suitable for various wall renovation and cleaning scenarios. Attached Figure Description

[0020] Figure 1 For existing wall cleaning tools;

[0021] Figure 2 This is a three-dimensional schematic diagram of the present invention;

[0022] Figure 3 for Figure 1 The front view;

[0023] Figure 4 This is a schematic diagram of the present invention in its stored state;

[0024] Figure 5 A schematic diagram of the cleaning brush head nodes;

[0025] Figure 6 for Figure 5 A cross-sectional view along the AA direction.

[0026] Reference numerals in the attached diagram: 1 is the main body of the machine, 2 is the connecting rod, 3 is the drive motor, 4 is the mounting plate, 5 is the rotating shaft, 6 is the cleaning brush head, 7 is the friction damping hinge, 8 is the handle, 9 is the carrying handle, 10 is the limit block, 11 is the end cover, 12 is the key, 13 is the bearing, 101 is the control compartment, 102 is the bridge, 103 is the accommodating area, 301 is the output shaft, and 501 is the stepped surface. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0028] This embodiment aims to provide a handheld electric wall crack cleaning device, which is mainly used for cleaning wall cracks during exterior wall repair, addressing the problems of low cleaning efficiency and high labor intensity of existing wall crack cleaning tools.

[0029] A handheld electric wall cleaning device, such as Figure 2 and Figure 3 It includes a main body 1, a connecting rod 2, a drive motor 3, and a cleaning brush head 6. The main body 1 is equipped with a mobile power supply and a controller, which are used to supply power and control the drive motor 3, respectively.

[0030] A connecting rod 2 extending forward is provided at the front end of the main body 1, with the front end close to the wall. A mounting plate 4 is fixedly connected to the end of the connecting rod 2. Figure 6 A rotating shaft 5 is mounted on the mounting plate 4, which is perpendicular to the connecting rod 2 and rotates horizontally. A bearing 13 is installed between the rotating shaft 5 and the mounting plate 4.

[0031] The cleaning brush head 6 is disc-shaped and vertically arranged perpendicular to the wall. It is fitted onto one end of the rotating shaft 5. Specifically, a key 12 is provided between the cleaning brush head 6 and the rotating shaft 5, allowing them to rotate synchronously. The end of the rotating shaft 5 connected to the cleaning brush head 6 has a stepped surface 501, and an end cap 11 is detachably threaded onto this end. This secures the cleaning brush head 6 between the stepped surface 501 and the end cap 11, and the cleaning brush head 6 can be removed by removing the end cap 11.

[0032] The drive motor 3 is fixedly mounted on the mounting plate 4. The output shaft 301 of the drive motor 3 is connected to the other end of the rotating shaft 5. The drive motor 3 is connected to the power supply and controller wires. Since this embodiment is mainly used for cleaning the dust in the wall cracks, the drive motor 3 does not need to provide a large torque; it only needs to be sufficient for brush cleaning. Therefore, a smaller, lighter motor model can be used directly, or the motor can be directly mounted on the mounting plate 4. A miniature planetary geared motor, such as an N20 planetary geared motor, is suitable for the drive motor 3.

[0033] Furthermore, the main body 1 has a receiving area 103 with a lower opening for accommodating the connecting rod 2 and the cleaning brush head 6, such as... Figure 2-4 The main body 1 includes a control compartment 101 and a cable tray 102. The power supply and controller are both located in the control compartment 101. The specific internal structure and layout are based on existing technology and will not be described in detail here. The rear end of the cable tray 102 is fixedly mounted on the upper part of the outer wall of the control compartment 101, and the front end of the cable tray 102 is hinged to the connecting rod 2 via a friction damping hinge 7. An accommodating area 103 is formed between the control compartment 101 and the cable tray 102.

[0034] The connecting rod 2 is hinged to the front end of the cable tray 102 via a friction damping hinge 7, allowing the connecting rod 2 to rotate downwards into the receiving area 103 and maintain its angle. The friction damping hinge 7 is a hinge structure with frictional resistance, and a fastener is provided on its rotation axis. By rotating the fastener, the frictional resistance can be adjusted to ensure that the connecting rod 2 can overcome its own weight through frictional resistance to maintain a specific angle. The specific structure and working principle of the friction damping hinge 7 adopt existing technology and will not be described in detail here.

[0035] like Figure 4 By rotating the connecting rod 2 downwards into the receiving area 103, i.e., rotating it clockwise, the overall volume of the device can be reduced for easier storage. In other embodiments, the main body 1 can also be configured as a box structure with a receiving area 103 having a lower opening inside the box. When the connecting rod 2 is rotated downwards into the receiving area 103, it is directly and completely stored inside the box.

[0036] During use, the cleaning brush head 6 rotates downwards perpendicular to the wall. Considering the upward reaction force exerted by the wall on the cleaning brush head 6, which would cause the cleaning brush head 6 to tilt upwards, the friction damping hinge 7 alone may not be sufficient to overcome this reaction force. Therefore, if... Figure 5 A limit block 10 is fixed on the upper surface of the rear end of the connecting rod 2. When the connecting rod 2 rotates forward to the horizontal, the limit block 10 abuts against the front end of the main body 1 to limit its further upward movement, thereby resisting the reaction force of the wall.

[0037] In this embodiment, a handle 8 is fixedly installed on the rear side wall of the control compartment 101, and a lifting handle 9 is fixedly installed on the top of the cable tray 102, so as to facilitate hand-holding the device for operation.

Claims

1. A handheld electric wall cleaning device, characterized in that: Includes the main body, connecting rod, drive motor, and cleaning brush head; The main body of the device is equipped with a mobile power supply and a controller. The front end of the main body of the device is provided with a connecting rod that extends forward. The end of the connecting rod is fixedly connected to a mounting plate. A rotating shaft is provided on the mounting plate that is perpendicular to the connecting rod and rotates horizontally. The cleaning brush head is disc-shaped and is fitted onto one end of the rotating shaft. The drive motor is fixedly mounted on the mounting plate, and the output shaft of the drive motor is connected to the other end of the rotating shaft. The drive motor is connected to the power supply and controller wires.

2. The handheld electric wall cleaning device according to claim 1, characterized in that: The main body of the device has a receiving area with a lower opening for accommodating the connecting rod and the cleaning brush head; The connecting rod is hinged to the main body of the fuselage via a friction damping hinge, allowing the connecting rod to rotate downwards into the receiving area and maintain its angle.

3. The handheld electric wall cleaning device according to claim 2, characterized in that: The main body of the fuselage includes a control compartment and a cable tray, and the mobile power supply and controller are both located in the control compartment; The rear end of the cable tray is fixedly mounted on the control compartment, and the front end of the cable tray is hinged to the connecting rod via a friction damping hinge, forming an accommodating area between the control compartment and the cable tray.

4. A handheld electric wall cleaning device according to claim 3, characterized in that: A handle is provided on the rear side wall of the control compartment, and a lifting handle is provided on the top of the cable tray.

5. A handheld electric wall cleaning device according to claim 2, characterized in that: The cleaning brush head rotates downwards perpendicular to the wall; a limit block is fixed on the upper surface of the rear end of the connecting rod, and when the connecting rod rotates forward to the horizontal, the limit block abuts against the front end of the main body of the machine.

6. A handheld electric wall cleaning device according to any one of claims 1-5, characterized in that: The end of the rotating shaft connected to the cleaning brush head is provided with a stepped surface, and an end cap is detachably connected to this end. The cleaning brush head is distributed between the stepped surface and the end cap.