A wall surface dust removal and polishing device

Abstract

The utility model discloses a wall surface dust removal polishing device, including polisher body, polisher body built -in controller and battery, and battery and controller electric connection, the lateral wall fixed setting of polisher body has the handle, still include protective cover, mobile ring, moving disc, polishing disc, moving mechanism and dust extraction mechanism, and the protective cover fixed setting is in the lateral wall of polisher body, and mobile ring and moving disc are sealed and set up in the protective cover along the axial direction of protective cover and slide, and install pressure detector between mobile ring and moving disc, and this wall surface dust removal polishing device is used to solve the problem that the polishing effect is influenced by the deviation of polishing pressure in the process of polishing the wall surface with the handheld polishing device of prior art.

Description

Technical Field

[0001] This utility model relates to the field of wall sanding technology, specifically to a wall cleaning and sanding device. Background Technology

[0002] Wall cleaning and sanding is a core process in building decoration, old wall renovation and wall maintenance projects. The quality of sanding directly determines the construction effect of subsequent wall painting, tiling and other processes, and has a decisive impact on the flatness, decorative beauty and service life of the wall.

[0003] In the current technology, the sanding of walls in small houses is generally done using handheld devices. The operator holds the sander, and the motor inside the sander drives the sandpaper disc to rotate at high speed, rubbing against the wall to remove impurities such as burrs and old paint layers. The sanding pressure depends entirely on the operator's hand force, and the contact force between the sandpaper disc and the wall is controlled manually.

[0004] However, during the sanding process, the sanding pressure is greatly affected by the operator's physical exertion, operating experience, hand stability, and subjective judgment. In long-term operation scenarios, the operator's hands are prone to fatigue and soreness, which leads to a gradual decrease in the applied force and a decrease in sanding pressure. Moreover, the difference in the force application habits of different operators or the same operator at different stages of operation will cause fluctuations in sanding pressure in different areas of the same wall, resulting in deviations in the flatness of the wall surface. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a wall cleaning and sanding device, which solves the problem mentioned in the background art that the sanding effect is easily affected by deviations in sanding pressure during the sanding process of the existing hand-held sanding device.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a wall cleaning and sanding device, comprising a sanding machine body, a built-in controller and a battery, the battery being electrically connected to the controller, a handle fixedly mounted on the side wall of the sanding machine body, and further comprising a protective cover, a moving ring, a moving disc, a sanding disc, a moving mechanism, and a dust collection mechanism. The protective cover is fixedly mounted on the side wall of the sanding machine body. The moving ring and the moving disc slide along the axial direction of the protective cover and are sealed within the protective cover. A pressure detector is installed between the moving ring and the moving disc. A display screen is mounted on the sanding machine body. The pressure detector is electrically connected to the display screen and the battery, respectively. The sanding disc is rotatably mounted on the moving disc. A first motor is mounted on the moving disc. The output end of the first motor is fixedly connected to the sanding disc. The first motor is electrically connected to the battery. The moving mechanism is mounted on the moving ring for adjusting the position of the moving ring. The dust collection mechanism is located on one side of the protective cover for collecting dust during the sanding process.

[0009] Preferably, the moving mechanism includes a first cavity, a support plate, positioning posts, and a moving component. The first cavity is located inside the protective cover, and an installation opening is provided on the inner bottom wall of the first cavity. The support plate is slidably disposed within the first cavity. A plurality of positioning posts are fixedly disposed on the top side wall of the moving ring. The positioning posts penetrate the support plate and are slidably connected to the support plate. A positioning disc is fixedly disposed at the top of the positioning post, and a damping spring is fitted on the positioning post. The moving component is disposed on the support plate and is used to adjust the position of the support plate.

[0010] Furthermore, the movable component includes a self-locking threaded rod, a guide rod, and a handwheel. The self-locking threaded rod is rotatably disposed within the first cavity and passes through the support plate via a threaded connection. The guide rod is fixedly disposed within the first cavity, passes through the support plate, and is slidably connected to the support plate. The handwheel is rotatably disposed on the protective cover and is fixedly connected to the self-locking threaded rod. The self-locking threaded rod is a transmission or fixing component that achieves anti-loosening self-locking by relying on the structure of the threaded pair itself. Its core feature is that it can resist loosening caused by vibration without the need for additional anti-loosening components.

[0011] Furthermore, the dust collection mechanism includes a collection box, a fan, and a telescopic tube. The collection box and the fan are located on one side of the protective cover. The collection box has a built-in filter plate. The input end of the fan is connected to the collection box, and the output end of the fan is connected to the external environment. The telescopic tube is provided through the bottom of the side wall of the protective cover, and the two ends of the telescopic tube are connected to the protective cover and the collection box, respectively.

[0012] Furthermore, multiple ball bearings are embedded in the bottom of the side wall of the protective cover.

[0013] Based on the above scheme, a protective box is fixedly installed on the mobile disk, and the first motor is located inside the protective box.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a wall surface cleaning and sanding device, which has the following beneficial effects:

[0016] 1. In this utility model, through the setting of the moving mechanism, after the operator presses the ball bearings on the protective cover onto the wall, the operator can rotate the handwheel to drive the self-locking threaded rod to rotate, and then drive the support plate to move through the threaded engagement of the self-locking threaded rod and the support plate. The continuous movement of the support plate can drive the grinding disc to press against the wall and compress the damping spring. The rebound force generated when the damping spring is compressed can act on the surface of the grinding disc and adjust the pressure between the grinding disc and the wall as the support plate moves. At the same time, the pressure on the grinding disc can be detected by the tension detector. When the appropriate grinding pressure is reached, the rotation of the handwheel is stopped. Afterwards, during the grinding process, the ball bearings always remain in contact with the wall and move on the wall, thereby maintaining a constant grinding pressure of the grinding disc.

[0017] 2. In this utility model, by setting up a dust collection mechanism, a negative pressure can be generated in the collection box by the operation of the fan, which facilitates the collection of dust generated during the grinding process through the telescopic tube. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this application;

[0019] Figure 2 This is a structural diagram from another perspective of this application;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of this application;

[0021] Figure 4 This is a schematic diagram of the moving mechanism structure of this application;

[0022] Figure 5 This is a schematic diagram of the cooperative structure of the moving ring and the moving disk in this application.

[0023] In the diagram: 1. Grinding machine body; 2. Handle; 3. Protective cover; 4. Moving ring; 5. Moving disc; 6. Pressure detector; 7. Display screen; 8. Grinding disc; 9. First motor; 10. First cavity; 11. Support plate; 12. Positioning column; 13. Positioning disc; 14. Damping spring; 15. Self-locking threaded rod; 16. Guide rod; 17. Handwheel; 18. Collection box; 19. Fan; 20. Telescopic tube; 21. Ball bearing; 22. Protective box. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5 A wall cleaning and sanding device includes a sanding body 1, a built-in controller and a battery, the battery being electrically connected to the controller. A handle 2 is fixedly mounted on the side wall of the sanding body 1. The device also includes a protective cover 3, a moving ring 4, a moving disc 5, a sanding disc 8, a moving mechanism, and a dust collection mechanism. The protective cover 3 is fixedly mounted on the side wall of the sanding body 1. The moving ring 4 and the moving disc 5 slide along the axial direction of the protective cover 3 and are sealed within the protective cover 3. A pressure detector 6 is installed between the moving ring 4 and the moving disc 5. The sanding body 1... A display screen 7 is installed, and a pressure detector 6 is electrically connected to the display screen 7 and the battery respectively. The grinding disc 8 is rotatably mounted on the movable disc 5. The movable disc 5 is equipped with a first motor 9, the output end of which is fixedly connected to the grinding disc 8. The first motor 9 is electrically connected to the battery. The moving mechanism is mounted on the movable ring 4 for adjusting the position of the movable ring 4. The dust collection mechanism is located on one side of the protective cover 3 for collecting dust during the grinding process. A protective box 22 is fixedly mounted on the movable disc 5, and the first motor 9 is located inside the protective box 22.

[0026] Reference Figures 2-5The moving mechanism includes a first cavity 10, a support plate 11, positioning posts 12, and a moving assembly. The first cavity 10 is located inside the protective cover 3, and an installation opening is provided on the inner bottom wall of the first cavity 10. The support plate 11 is slidably disposed within the first cavity 10. Multiple positioning posts 12 are fixedly disposed on the top side wall of the moving ring 4. The positioning posts 12 penetrate the support plate 11 and are slidably connected to the support plate 11. A positioning disc 13 is fixedly disposed on the top of the positioning post 12, and a damping spring 14 is fitted on the positioning post 12. The moving assembly is... The moving assembly, placed on the support plate 11, is used to adjust the position of the support plate 11. It includes a self-locking threaded rod 15, a guide rod 16, and a handwheel 17. The self-locking threaded rod 15 is rotatably disposed within the first cavity 10 and passes through the support plate 11 via a threaded connection. The guide rod 16 is fixedly disposed within the first cavity 10, passes through the support plate 11, and is slidably connected to it. The handwheel 17 is rotatably disposed on the protective cover 3 and is fixedly connected to the self-locking threaded rod 15. The self-locking threaded rod 15 is a transmission or fixing component that achieves anti-loosening self-locking by relying on the structure of the threaded pair itself. Its core feature is that it can resist loosening caused by vibration without the need for additional anti-loosening components. Specifically, after the operator presses the ball bearing 21 on the protective cover 3 against the wall, the operator can rotate the self-locking threaded rod 15 by rotating the handwheel 17. In turn, the threaded engagement between the self-locking threaded rod 15 and the support plate 11 will cause the support plate 11 to move. The continuous movement of the support plate 11 can cause the grinding disc 8 to press against the wall and compress the damping spring 14. The rebound force generated when the damping spring 14 is compressed can act on the surface of the grinding disc 8 and adjust the pressure between the grinding disc 8 and the wall as the support plate 11 moves. At the same time, the pressure on the grinding disc 8 can be detected by the tension detector. When the appropriate grinding pressure is reached, the rotation of the handwheel 17 is stopped. Afterwards, during the grinding process, the ball bearing 21 always remains in contact with the wall and moves on the wall, thereby maintaining a constant grinding pressure of the grinding disc 8.

[0027] Reference Figure 1 and Figure 2 The dust collection mechanism includes a collection box 18, a fan 19, and a telescopic tube 20. The collection box 18 and the fan 19 are located on one side of the protective cover 3. The collection box 18 has a built-in filter plate. The input end of the fan 19 is connected to the collection box 18, and the output end of the fan 19 is connected to the external environment. The telescopic tube 20 is installed through the bottom of the side wall of the protective cover 3. The two ends of the telescopic tube 20 are connected to the protective cover 3 and the collection box 18, respectively. Multiple ball bearings 21 are embedded in the bottom of the side wall of the protective cover 3. Specifically, the fan 19 can generate negative pressure in the collection box 18, which facilitates the collection of dust generated during the grinding process into the collection box 18 through the telescopic tube 20.

[0028] Working principle: During use, the operator holds handle 2 to press ball bearing 21 against the wall. Then, turning handwheel 17 rotates handwheel 17, which in turn rotates self-locking threaded rod 15. This rotation, through the threaded engagement between self-locking threaded rod 15 and support plate 11, moves support plate 11. The continuous movement of support plate 11 causes grinding disc 8 to press against the wall and compresses damping spring 14. The rebound force generated by the compressed damping spring 14 acts on the surface of grinding disc 8, thus reducing the pressure between grinding disc 8 and the wall. The pressure is adjusted by moving the support plate 11. At the same time, the pressure on the grinding disc 8 can be detected by the tension detector. When the appropriate grinding pressure is reached, the rotation of the handwheel 17 is stopped. During the grinding process, the ball bearing 21 always keeps in contact with the wall and moves on the wall, thereby maintaining a constant grinding pressure on the grinding disc 8. In addition, during the grinding process, the operation of the fan 19 can generate negative pressure in the collection box 18, which facilitates the collection of dust generated during the grinding process through the telescopic tube 20.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wall surface cleaning and sanding device, comprising a sanding machine body (1), wherein the sanding machine body (1) has a built-in controller and a battery, the battery being electrically connected to the controller, and a handle (2) is fixedly provided on the side wall of the sanding machine body (1), characterized in that, Also includes: A protective cover (3) is fixedly installed on the side wall of the grinding machine body (1); A movable ring (4) and a movable disk (5) are provided. The movable ring (4) and the movable disk (5) slide along the axial direction of the protective cover (3) and are sealed inside the protective cover (3). A pressure detector (6) is installed between the movable ring (4) and the movable disk (5). The grinding machine body (1) is equipped with a display screen (7), and the pressure detector (6) is electrically connected to the display screen (7) and the battery respectively. A grinding disc (8) is rotatably mounted on a movable disc (5). A first motor (9) is mounted on the movable disc (5). The output end of the first motor (9) is fixedly connected to the grinding disc (8). The first motor (9) is electrically connected to the battery. A moving mechanism is provided on the moving ring (4) for adjusting the position of the moving ring (4); A dust collection mechanism is provided on one side of the protective cover (3) for collecting dust during the polishing process.

2. The wall surface cleaning and sanding device according to claim 1, characterized in that, The moving mechanism includes: The first cavity (10) is opened inside the protective cover (3), and the inner bottom wall of the first cavity (10) is provided with an installation port; A support plate (11) is slidably disposed within the first cavity (10); Positioning post (12): Multiple positioning posts (12) are fixedly provided on the top side wall of the moving ring (4). The positioning post (12) passes through the support plate (11) and is slidably connected to the support plate (11). A positioning disk (13) is fixedly provided at the top of the positioning post (12). A damping spring (14) is fitted on the positioning post (12). A movable component is disposed on the support plate (11) for adjusting the position of the support plate (11).

3. The wall surface cleaning and sanding device according to claim 2, characterized in that, The moving component includes: A self-locking threaded rod (15) is rotatably disposed in the first cavity (10), and the self-locking threaded rod (15) passes through the support plate (11) through a threaded engagement; Guide rod (16), the guide rod (16) is fixedly disposed in the first cavity (10), the guide rod (16) passes through the support plate (11) and is slidably connected to the support plate (11); Handwheel (17) is rotatably mounted on the protective cover (3) and is fixedly connected to the self-locking threaded rod (15).

4. The wall surface cleaning and sanding device according to claim 3, characterized in that, The dust collection mechanism includes: The collection box (18) and the fan (19) are arranged on one side of the protective cover (3). The collection box (18) has a built-in filter plate. The input end of the fan (19) is connected to the collection box (18), and the output end of the fan (19) is connected to the external environment. Telescopic tube (20) is provided through the bottom end of the side wall of the protective cover (3), and the two ends of the telescopic tube (20) are respectively connected to the protective cover (3) and the collection box (18).

5. A wall surface cleaning and sanding device according to claim 4, characterized in that, Multiple ball bearings (21) are embedded at the bottom of the side wall of the protective cover (3).

6. A wall surface cleaning and sanding device according to claim 5, characterized in that, A protective box (22) is fixedly installed on the mobile disk (5), and the first motor (9) is located inside the protective box (22).

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