Decorative wall surface polishing equipment

Abstract

Decorative wall surface polishing equipment comprises a box body and a third motor, the left end of the box body is fixedly connected with the third motor, an output shaft of the third motor is fixedly connected with a threaded rod, the outer wall of a bent block is slidably connected with the box body, and the end of the bent block is fixedly connected with a shell. And a grinding wheel anti-deviation structure is arranged in the shell. Through cooperation of a polishing wheel anti-deviation structure and a polishing wheel moving structure, an output shaft of a first motor rotates to drive a worm to rotate, the worm rotates to drive a worm gear to rotate, the worm gear rotates to drive a groove frame to slide upwards on a first sliding rod, and it is further indicated that the worm gear and the worm have the self-locking characteristic; the grinding wheel can work according to a preset track in the grinding process, position deviation caused by factors such as counter-acting force is avoided, an output shaft of a fourth motor rotates to drive a round rod to rotate, the round rod rotates to drive a shell to rotate, and therefore the grinding wheel rotates, and the wall face corresponding to the shell can be ground conveniently.

Description

Technical Field

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

[0002] Wall sanding plays a crucial role in the field of building decoration and renovation, as it affects the final appearance of the wall. When the sanding wheel rotates at high speed and comes into contact with the wall, according to Newton's third law, the wall will exert a reaction force on the sanding wheel that is equal in magnitude and opposite in direction. This will cause the sanding wheel to shift position, resulting in uneven sanding depth and force.

[0003] For example, a decorative wall polishing device with authorization announcement number "CN221248053U" uses a drive component to make the first vertical plate move linearly. Since the first vertical plate, the second vertical plate, and two pairs of connecting rods form a parallelogram mechanism, the first vertical plate is parallel to the second vertical plate. The second vertical plate moves upward, and at the same time, multiple telescopic cylinders move upward, and the polishing component performs polishing. This wall sanding equipment uses a multi-section telescopic cylinder and a parallelogram mechanism to support the sanding wheel. When the equipment is raised, the center of gravity shifts upward, reducing the equipment's stability. Furthermore, during sanding, the wall surface exerts an equal and opposite reaction force on the sanding wheel. This reaction force not only hinders the rotation of the sanding wheel but also causes the entire sanding device to shift. Under the continuous action of the reaction force, the sanding wheel is prone to vertical displacement. When sanding a protruding part of the wall, the reaction force on the sanding wheel suddenly increases. Due to the lack of self-locking, the sanding wheel may jump up or down, changing the originally set sanding height and thus affecting the flatness of the wall surface. Summary of the Invention

[0004] The present invention aims to solve the problems existing in the prior art by providing a decorative wall sanding device to prevent the sanding wheel from deviating during wall sanding.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This decorative wall sanding equipment includes a housing and a third motor. The third motor is fixedly connected to the left end of the housing. The output shaft of the third motor is fixedly connected to a threaded rod. Both ends of the threaded rod are rotatably connected to the housing through bearings. The threaded rod is threadedly connected to a threaded block. A bent block is fixedly connected to the lower end of the threaded block. The outer wall of the bent block is slidably connected to the housing. The outer wall of the bent block is provided with a sanding wheel repositioning structure.

[0006] To further improve the design, the grinding wheel repositioning structure includes a horizontal plate, the end of which is fixedly connected to a bent block. A rectangular frame is fixedly connected to the outer wall of the horizontal plate, and a fourth motor is fixedly connected to the inner end of the rectangular frame. A round rod is fixedly connected to the output shaft of the fourth motor, and the outer wall of the round rod is rotatably connected to the rectangular frame through a bearing.

[0007] Further improvements include a fixed connection between the end of the round rod and the housing, and an anti-displacement structure for the grinding wheel inside the housing.

[0008] Further improvements include a first motor, whose outer wall is fixedly connected to the housing. A worm gear is fixedly connected to the output shaft of the first motor, and both ends of the worm gear are rotatably connected to the housing via bearings. The worm gear meshes with a worm wheel, and both ends of the worm wheel's rotating shaft are rotatably connected to the housing via bearings. A connecting rod is fixedly connected to the outer wall of the worm wheel's rotating shaft, and a cylinder is fixedly connected to the end of the connecting rod. The outer wall of the cylinder is slidably connected to a groove frame. The inner walls on both sides of the groove frame are slidably connected to a first sliding rod, both ends of which are fixedly connected to the housing. The inner wall of the right end of the groove frame is rotatably connected to a first gear via a bearing. Both sides of the first gear mesh with a first rack and a second rack, respectively. The end of the second rack is fixedly connected to the housing. A horizontal block is fixedly connected to the right end of the first rack, and the inner wall on the left side of the horizontal block is slidably connected to a second sliding rod.

[0009] Further improvements include fixing both ends of the second slide bar to the housing, sliding the outer wall of the cross block to the housing, and fixing a square plate to the right end of the cross block.

[0010] To further improve the design, a second motor is fixedly connected to the end of the square plate. The output shaft of the second motor is rotatably connected to the housing via a bearing, and a grinding wheel is fixedly connected to the output shaft of the second motor.

[0011] The beneficial effects of this utility model are as follows: This utility model, a decorative wall sanding device, utilizes the cooperation of a sanding wheel anti-deviation structure and a sanding wheel moving structure. The output shaft of the first motor rotates, driving the worm gear to rotate. The worm gear rotates, driving the worm wheel to rotate. The worm wheel rotates, causing the groove frame to slide upward on the first slide rod. Furthermore, the worm gear has a self-locking characteristic, allowing the sanding wheel to work along a preset trajectory during sanding, avoiding positional deviation caused by factors such as reaction forces. The movement of the groove frame causes the square plate to move upward, which in turn drives the second motor to move. The second motor then drives the sanding wheel to move upward. Further, because the gear meshes with two racks simultaneously, the moving distance of the rack depends not only on the rotation of the gear but also on the displacement caused by the gear's own movement, thus achieving a stroke multiplication effect and allowing the sanding wheel to move a longer distance. The output shaft of the fourth motor rotates, driving the round rod to rotate. The round rod rotates, driving the housing to rotate, which in turn rotates the sanding wheel, facilitating sanding of the wall surface corresponding to the housing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 Front sectional view of the middle box;

[0014] Figure 3 for Figure 1 Top sectional view;

[0015] Figure 4 for Figure 1 Front sectional view of the middle shell;

[0016] Figure 5 for Figure 4 A partial right-side sectional view;

[0017] Figure 6 for Figure 4 A partial top sectional view.

[0018] Explanation of reference numerals in the attached drawings: 1. Box body, 2. Shell, 3. Grinding wheel anti-displacement structure, 301. First motor, 302. Worm gear, 303. Worm wheel, 304. Connecting rod, 305. Cylinder, 306. Groove frame, 307. First slide rod, 308. First gear, 309. First rack, 310. Second rack, 311. Horizontal block, 312. Second slide rod, 4. Grinding wheel repositioning structure, 401. Horizontal plate, 402. Rectangular frame, 403. Fourth motor, 404. Round rod, 5. Square plate, 6. Second motor, 7. Grinding wheel, 8. Third motor, 9. Threaded rod, 10. Threaded block, 11. Third slide rod, 12. Bent block. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] See attached document Figure 1-6 In this embodiment, a decorative wall polishing device includes a housing 1 and a third motor 8. The third motor 8 is fixedly connected to the left end of the housing 1. The third motor 8 is a stepper motor. The output shaft of the third motor 8 is fixedly connected to a threaded rod 9. Both ends of the threaded rod 9 are rotatably connected to the housing 1 through bearings. The threaded rod 9 rotates inside the housing 1 through the bearings. The threaded rod 9 is threadedly connected to a threaded block 10. The lower end of the threaded block 10 is fixedly connected to a bent block 12. The outer wall of the bent block 12 is slidably connected to the housing 1. The bent block 12 slides inside the housing 1. The outer wall of the bent block 12 is provided with a polishing wheel replacement structure 4. The end of the round rod 404 is fixedly connected to the housing 2.

[0021] The interior of the housing 2 is equipped with a grinding wheel anti-displacement structure 3. Both ends of the second slide rod 312 are fixedly connected to the housing 2. The outer wall of the horizontal block 311 is slidably connected to the housing 2. The horizontal block 311 slides inside the housing 2. The right end of the horizontal block 311 is fixedly connected to a square plate 5. The end of the square plate 5 is fixedly connected to a second motor 6. The second motor 6 is a servo motor. The output shaft of the second motor 6 is rotatably connected to the housing 2 through a bearing. The output shaft of the second motor 6 rotates inside the housing 2 through a bearing. The output shaft of the second motor 6 is fixedly connected to a grinding wheel 7.

[0022] See attached document Figure 3 , Figure 4 , Figure 5 and Figure 6 The anti-deviation structure 3 of the grinding wheel includes a first motor 301. The outer wall of the first motor 301 is fixedly connected to the housing 2. The first motor 301 is a servo motor. The output shaft of the first motor 301 is fixedly connected to a worm 302. Both ends of the worm 302 are rotatably connected to the housing 2 through bearings. The worm 302 rotates in the housing 2 through the bearings. The worm 302 is meshed with a worm wheel 303. Both ends of the rotating shaft of the worm wheel 303 are rotatably connected to the housing 2 through bearings. The worm wheel 303 rotates in the housing 2 through the bearings. A connecting rod 304 is fixedly connected to the outer wall of the rotating shaft of the worm wheel 303. A cylinder 305 is fixedly connected to the end of the connecting rod 304.

[0023] The outer wall of the cylinder 305 is slidably connected to the groove frame 306. The cylinder 305 slides inside the groove frame 306. The inner walls on both sides of the groove frame 306 are slidably connected to the first slide rod 307. The groove frame 306 slides on the first slide rod 307. Both ends of the first slide rod 307 are fixedly connected to the housing 2. The inner wall of the right end of the groove frame 306 is rotatably connected to the first gear 308 through a bearing. The first gear 308 rotates inside the groove frame 306 through a bearing. The two sides of the first gear 308 are respectively meshed with the first rack 309 and the second rack 310. The end of the second rack 310 is fixedly connected to the housing 2. A horizontal block 311 is fixedly connected to the right end of the first rack 309. The inner wall on the left side of the horizontal block 311 is slidably connected to the second slide rod 312. The horizontal block 311 slides on the second slide rod 312.

[0024] See attached document Figure 3 The rotating position structure 4 includes a horizontal plate 401. The end of the horizontal plate 401 is fixedly connected to the bending block 12. A rectangular frame 402 is fixedly connected to the outer wall of the horizontal plate 401. A fourth motor 403 is fixedly connected to the inner end of the rectangular frame 402. The fourth motor 403 is a servo motor. A round rod 404 is fixedly connected to the output shaft of the fourth motor 403. The outer wall of the round rod 404 is rotatably connected to the rectangular frame 402 through a bearing. The round rod 404 rotates within the rectangular frame 402 through the bearing.

[0025] Working principle:

[0026] Sanding walls during decoration and renovation: Even after applying putty, there may still be minor bumps or unevenness on the wall surface during construction. Sanding can eliminate these imperfections and make the wall surface smoother.

[0027] The operator moves the device to the area to be polished using the casters. Casters are installed at the four corners of the lower end of the housing 1, ensuring the outer wall of the polishing wheel 7 is flush against the wall. The second motor 6 is started. The second motor 6 is electrically connected to a battery via wires. The battery has a switch connected to an external remote control device. The output shaft of the second motor 6 rotates, causing the polishing wheel 7 to rotate (e.g., ...). Figure 3 This allows the grinding wheel 7 to perform a grinding operation on the wall surface;

[0028] When the external power supply of the first motor 301 is connected and the first motor 301 is started, the output shaft of the first motor 301 rotates, driving the worm gear 302 to rotate (e.g. Figure 4 The worm gear 302 rotates, which drives the worm wheel 303 to rotate. The worm wheel 303 rotates, which drives the connecting rod 304 to rotate. The connecting rod 304 rotates, which drives the cylinder 305 to rotate. The cylinder 305 rotates, which drives the groove frame 306 to slide upward on the first slide rod 307. It should be further explained that the worm gear has a self-locking characteristic, which enables the grinding wheel 7 to work according to the preset trajectory during the grinding process, avoiding positional deviation caused by factors such as reaction force.

[0029] The movement of the groove frame 306 drives the first gear 308 to move and rotate on the second rack 310 simultaneously (e.g.) Figure 4 This causes the first rack 309 to slide upwards on the second slide bar 312. The movement of the first rack 301 drives the horizontal block 311 to move, which in turn drives the square plate 5 to move. The movement of the square plate 5 drives the second motor 6 to move, which in turn drives the grinding wheel 7 to move upwards. Furthermore, since the gear meshes with both racks simultaneously, the moving distance of the rack depends not only on the rotation of the gear but also on the displacement caused by the gear's own movement, thus achieving a multiplied stroke effect. This results in the grinding wheel 7 moving a longer distance. When the grinding wheel 7 reaches its highest point, the output shaft of the first motor 301 reverses direction, and the first motor 301, through the aforementioned connection method, causes the grinding wheel 7 to move downwards, thus bringing the grinding wheel 7 against the wall surface. The reciprocating grinding motion improves the grinding effect. After grinding at this position is completed, the external power supply of the third motor 8 is connected, and the third motor 8 is started. The output shaft of the third motor 8 rotates, driving the threaded rod 9 to rotate. The rotation of the threaded rod 9 drives the threaded block 10 to slide to the left on the fourth slide rod 11. The fourth slide rod 11 acts as a limit for the threaded block 10. The movement of the threaded block 10 drives the bent block 12 to move, and the movement of the bent block 12 drives the housing 2 to move. The housing 2 drives the grinding wheel 7 to move to the left in the above manner. The third motor 8 is a stepper motor, which can rotate intermittently. The number of rotations is consistent each time, so that the distance the threaded block 10 moves is consistent. This makes the distance the grinding wheel 7 moves laterally the same, so that the operator does not need to frequently adjust the grinding position or worry about missing any grinding spots.

[0030] When the threaded block 10 moves to the leftmost end, the corresponding wall surface cannot be sanded due to the position of the housing 2. The fourth motor 403 (a servo motor with self-locking capability) is then activated. The fourth motor 403 is electrically connected to the battery via wires. The battery has a switch connected to an external remote control device. The output shaft of the fourth motor 403 rotates, causing the round rod 404 to rotate (e.g., ...). Figure 3 The rotation of the round rod 404 causes the housing 2 to rotate 180°, thereby causing the grinding wheel 7 to rotate 180°, which facilitates grinding the wall surface corresponding to the housing 2, and then the fourth motor 403 is turned off.

[0031] After sanding is completed, the first motor 301, the third motor 8 and the fourth motor 403 reset the sanding wheel 7, and then all motors and power are turned off, thus completing the sanding process of the decorative wall sanding equipment on the wall.

[0032] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A decorative wall polishing device, comprising a housing (1) and a third motor (8), wherein the third motor (8) is fixedly connected to the left end of the housing (1), characterized in that: The output shaft of the third motor (8) is fixedly connected to a threaded rod (9). Both ends of the threaded rod (9) are rotatably connected to the housing (1) through bearings. The threaded rod (9) is threadedly connected to a threaded block (10). A bent block (12) is fixedly connected to the lower end of the threaded block (10). The outer wall of the bent block (12) is slidably connected to the housing (1). The outer wall of the bent block (12) is provided with a grinding wheel replacement structure (4).

2. The decorative wall sanding equipment according to claim 1, characterized in that: The grinding wheel repositioning structure (4) includes a horizontal plate (401), the end of which is fixedly connected to a bent block (12). A rectangular frame (402) is fixedly connected to the outer wall of the horizontal plate (401), and a fourth motor (403) is fixedly connected to the inner end of the rectangular frame (402). A round rod (404) is fixedly connected to the output shaft of the fourth motor (403), and the outer wall of the round rod (404) is rotatably connected to the rectangular frame (402) through a bearing.

3. The decorative wall sanding equipment according to claim 2, characterized in that: The end of the round rod (404) is fixedly connected to the housing (2), and the interior of the housing (2) is provided with a grinding wheel anti-displacement structure (3).

4. The decorative wall sanding equipment according to claim 3, characterized in that: The anti-deviation structure (3) of the grinding wheel includes a first motor (301). The outer wall of the first motor (301) is fixedly connected to the housing (2). The output shaft of the first motor (301) is fixedly connected to a worm gear (302). Both ends of the worm gear (302) are rotatably connected to the housing (2) through bearings. The worm gear (302) is meshed with a worm wheel (303). Both ends of the rotating shaft of the worm wheel (303) are rotatably connected to the housing (2) through bearings. A connecting rod (304) is fixedly connected to the outer wall of the rotating shaft of the worm wheel (303). A cylinder (305) is fixedly connected to the end of the connecting rod (304). The outer wall of the cylinder (305) is connected to... The groove frame (306) is slidably connected, and the inner walls on both sides of the groove frame (306) are slidably connected to the first slide rod (307). Both ends of the first slide rod (307) are fixedly connected to the housing (2). The inner wall of the right end of the groove frame (306) is rotatably connected to the first gear (308) through a bearing. The two sides of the first gear (308) are respectively meshed with the first rack (309) and the second rack (310). The end of the second rack (310) is fixedly connected to the housing (2). A horizontal block (311) is fixedly connected to the right end of the first rack (309). The inner wall on the left side of the horizontal block (311) is slidably connected to the second slide rod (312).

5. The decorative wall sanding equipment according to claim 4, characterized in that: Both ends of the second slide bar (312) are fixedly connected to the housing (2), the outer wall of the cross block (311) is slidably connected to the housing (2), and a square plate (5) is fixedly connected to the right end of the cross block (311).

6. The decorative wall sanding equipment according to claim 5, characterized in that: The end of the square plate (5) is fixedly connected to a second motor (6), the output shaft of the second motor (6) is rotatably connected to the housing (2) through a bearing, and a grinding wheel (7) is fixedly connected to the output shaft of the second motor (6).

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