A wall surface grinding device for building decoration

Abstract

This utility model discloses a wall grinding device for building decoration, including a mounting base. A motor is fixedly mounted on the top of the mounting base, and the motor output shaft passes through and extends to the other side of the mounting base. The motor is fixedly connected to a grinding disc. A central controller is provided at the bottom of the motor, and a wire harness box is fixedly connected to the bottom of the central controller. Handle slots are respectively opened on both sides of the mounting base, and a gripping structure is provided in the handle slot. The gripping structure includes a handle inserted into the handle slot. The top and bottom of the handle slot are connected to a movable groove. Multiple sets of springs are welded to the inner wall of each movable groove, and a locking block is welded to the other end of each spring. The movable groove and the handle slot are connected, and a locking groove is machined at the root of the handle slot. This utility model, by providing a gripping structure, allows the handle to be quickly installed and removed, has good disassembly and maintainability, helps to avoid concrete residue and hand contamination, and reduces the risk of injury.

Description

Technical Field

[0001] This utility model relates to the technical field of wall surface grinding equipment, specifically a wall surface grinding equipment used in building decoration. Background Technology

[0002] In construction, wall grinding equipment is a common type of power tool. It typically uses a motor to drive a grinding disc at high speed to uniformly treat the wall surface. The operator needs to hold the handles on both sides of the equipment with both hands to push and adjust the angle of the machine, thereby completing the work on the entire wall.

[0003] Currently, most equipment uses handles that are fixed to the machine body with screws or welded on. While this provides a certain degree of stability during daily use, after prolonged operation, issues such as concrete residue and dirt buildup often arise on the handle area. In severe cases, this can lead to a rough grip surface or even hardening. During equipment maintenance or cleaning, disassembling fixed handles is cumbersome, requiring tools to loosen the fasteners, increasing cleaning difficulty and maintenance costs. Most importantly, frequent hand contact with contaminated areas poses certain hygiene and injury risks to workers.

[0004] Therefore, there is an urgent need for a wall grinding device for building decoration to solve the above-mentioned technical defects. Utility Model Content

[0005] The purpose of this utility model is to provide a wall grinding device for building decoration, in order to solve the problem mentioned in the background art that the handles of the devices are mostly fixed to the device body by screws or welding, and concrete residue and dirt accumulate on the handle, posing a risk of injury to construction workers when their hands frequently come into contact with the contaminated area.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wall surface grinding device for building decoration, comprising a mounting base, a motor fixedly mounted on the top of the mounting base, the motor output shaft passing through and extending to the other side of the mounting base, the motor fixedly connected to a grinding disc, a central controller provided at the bottom of the motor, a wire harness box fixedly connected to the bottom of the central controller, handle slots respectively opened on both sides of the mounting base, and a gripping structure provided in the handle slot; the gripping structure includes a handle inserted into the handle slot, the top and bottom of the handle slot are connected to a movable groove, multiple sets of springs are welded to the inner wall of the movable groove, and a locking block is welded to the other end of each spring, the movable groove and the handle slot are connected, a locking groove is machined at the root of the handle slot, and the locking block matches the shape of the locking groove to form a locking fixation.

[0007] As a further technical solution of this utility model, the bottom end of the mounting base is fixed with an outer shell, which covers the outside of the grinding disc.

[0008] As a further technical solution of this utility model, the handle is provided in two sets, and the handles are symmetrically distributed about the mounting base.

[0009] As a further technical solution of this utility model, a red and green operation indicator light is provided at the central controller, and a speed regulator and a main switch are also provided inside the central controller.

[0010] As a further technical solution of this utility model, the wire harness box is fixedly connected to the central controller by screws, and a coiled spring disc is movably assembled inside the wire harness box. The edge of the coiled spring disc is machined into a serrated groove, and a power cord is wound around the outside of the coiled spring disc.

[0011] As a further technical solution of this utility model, a stop rod is inserted into the bottom end of the wire harness box, a limit rod is welded to the inner wall of the wire harness box, a protrusion is processed in the middle of the stop rod, the protrusion is engaged and fixed with the limit rod, and the top end of the stop rod is engaged in the sawtooth groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by setting a grip structure, the handle can be quickly assembled and disassembled, with good disassembly and maintainability, which helps to avoid concrete residue and hand contamination, and reduces the risk of injury;

[0013] By incorporating a wire harness box, stop rod, limit rod, serrated groove, spring coil, and power cord, the device achieves fixed-length release and automatic storage of the power cord, preventing the cord from being dragged and contaminating wet walls during use, and enhancing the adaptability and portability of the equipment in different locations. Attached Figure Description

[0014] Figure 1 This is a top view of the structure of this utility model;

[0015] Figure 2 This is a side view of the mounting base of this utility model.

[0016] Figure 3 This is a side view of the structure of this utility model;

[0017] Figure 4 For the present utility model Figure 1 A magnified view of the structure at point A in the middle.

[0018] In the diagram: 1. Outer casing; 2. Mounting base; 3. Handle; 4. Handle groove; 5. Motor; 6. Central controller; 7. Main switch; 8. Red and green running indicator lights; 9. Speed ​​controller; 10. Wiring harness box; 11. Spring coil plate; 12. Serrated groove; 13. Limit rod; 14. Stop rod; 15. Power cord; 16. Movable groove; 17. Locking block; 18. Locking slot; 19. Spring; 20. Grinding disc; 21. Raised step. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-4 This utility model provides an embodiment of a wall surface grinding device for building decoration, including a mounting base 2. A motor 5 is fixedly mounted on the top of the mounting base 2. The output shaft of the motor 5 passes through and extends to the other side of the mounting base 2. The motor 5 is fixedly connected to a grinding disc 20. A central controller 6 is provided at the bottom of the motor 5. A wire harness box 10 is fixedly connected to the bottom of the central controller 6. Handle slots 4 are respectively opened on both sides of the mounting base 2. A grip structure is provided in the handle slots 4. The grip structure includes a handle 3 inserted into the handle slot 4. The top and bottom of the handle slot 4 are connected to a movable slot 16. Multiple sets of springs 19 are welded to the inner wall of the movable slot 16. A locking block 17 is welded to the other end of each spring 19. The movable slot 16 and the handle slot 4 are connected. A locking groove 18 is processed at the root of the handle slot 4. The locking block 17 matches the shape of the locking groove 18 and forms a locking and fixing. Two sets of handles 3 are provided. The handles 3 are symmetrically distributed about the mounting base 2.

[0021] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, the handle 3 has a double grip structure, which facilitates even force application. The handle 3 abandons the screw fixing structure and uses a locking block 17 and a locking groove 18 to engage. During installation, the locking block 17 is pushed towards the spring 19, the spring 19 is compressed, the handle 3 is inserted into the handle groove 4, and then the hand is released. When the locking block 17 rebounds, it overcomes the friction and locks into the locking groove 18, so that the handle 3 is fixed in the handle groove 4. This makes it easy to disassemble and clean, reduces the amount of concrete material stuck on the handle 3, and reduces the injury caused by repeated contact with the hands. It is highly removable.

[0022] The mounting base 2 has a housing 1 fixed at the bottom. The housing 1 covers the outside of the grinding disc 20. The central controller 6 is equipped with red and green running indicator lights 8. The central controller 6 is also equipped with a speed controller 9 and a main switch 7.

[0023] Specifically, such as Figure 1 and Figure 3As shown, the grinding disc 20 can effectively smooth protruding areas and clean residues during its rotation in contact with the wall surface. The device uses a motor 5 to drive the grinding disc 20 at the bottom of the outer casing 1 to smooth the wall surface. The motor 5 is a MY6812-24 model with an adjustable speed range of 800~3000rpm. The central controller 6 is equipped with a main switch 7 and a speed controller 9, which are used to start and stop the motor 5 and adjust the speed of the grinding disc 20. The speed controller 9 is a PWM pulse width speed control module with a potentiometer knob adjustment interface, which can realize continuous speed adjustment and load feedback adjustment functions, stably control the speed of the motor 5, and the red and green running indicator lights 8 can indicate the operating status, which is convenient to observe and highly operable.

[0024] The wire harness box 10 is fixedly connected to the central controller 6 by screws. A spring coil 11 is movably assembled inside the wire harness box 10. The edge of the spring coil 11 is machined into a serrated groove 12. A power cord 15 is wound around the outside of the spring coil 11. A stop rod 14 is inserted into the bottom of the wire harness box 10. A limit rod 13 is welded to the inner wall of the wire harness box 10. A protrusion 21 is machined in the middle of the stop rod 14. The protrusion 21 is snapped and fixed with the limit rod 13. The top of the stop rod 14 is snapped into the serrated groove 12.

[0025] Specifically, such as Figure 1 As shown, the wire harness box 10 is installed below the central controller 6. Before using the equipment, the stop rod 14 is pulled out. The protrusion 21 at the stop rod 14 overcomes the frictional resistance of the limit rod 13 and releases its limit on the serrated groove 12, so that the coiling disc 11 can rotate in its natural state. The power cord 15 can be pulled out and unwound to the required length. The stop rod 14 is then inserted back into the serrated groove 12 to fix the length of the power cord 15 pulled out, which is convenient for use in the venue according to the distance required. The power cord 15 is not easy to touch the undried wall surface due to dragging. After using the equipment, the power cord 15 can be retrieved through the coiling disc 11, which is convenient for moving and carrying the equipment and has strong portability.

[0026] Working Principle: Before using the equipment, the operator first pulls the power cord 15 out of the wire harness box 10. The power cord 15 is wound on the coiled spring disc 11. When pulling it out, the stop rod 14 must be pulled out first, so that the protrusion 21 on the stop rod 14 overcomes the elastic resistance of the limit rod 13, thereby releasing the limit on the sawtooth groove 12. The coiled spring disc 11 can then rotate to release the cord. The user pulls out the power cord 15 according to the length required for the construction site and inserts the stop rod 14 back into the sawtooth groove 12 to lock and fix it, preventing the power cord from springing back and affecting the operation during use. Then, the equipment is started by the main switch 7 on the central controller 6. The red and green operation indicator lights 8 illuminate, indicating that the equipment has entered the working state. The power signal is transmitted to the motor 5 through the internal circuit of the central controller 6, and its output shaft directly drives the motor. The grinding disc 20, which is fixed to the bottom of the outer casing 1, rotates at high speed. After the motor 5 drives the grinding disc 20 to rotate stably, the speed can be adjusted by the speed controller 9 to adapt to different wall surface hardness and smoothing requirements. During operation, the operator holds the handle 3 with both hands for guidance. The handle 3 adopts a detachable structure with a locking block 17 and a locking slot 18. During installation, the locking block 17 is locked into the locking slot 18 under the elastic force of the spring 19, fixing the handle 3 in the handle slot 4. The structure is firm, the force is even, and it is easy to clean or replace. After the operation is completed, the main switch 7 is turned off, the equipment stops running, and after the stop rod 14 is pulled out to release the limit, the coiling disc 11 automatically rewinds the power cord 15 under the drive of the built-in return spring, which is convenient for subsequent mobile equipment to be moved to other areas for continued operation or for storage.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wall surface grinding device for building decoration, comprising a mounting base (2), characterized in that: A motor (5) is fixedly installed at the top of the mounting base (2). The output shaft of the motor (5) passes through and extends to the other side of the mounting base (2). The motor (5) is fixedly connected to the grinding disc (20). A central controller (6) is provided at the bottom of the motor (5). A wire harness box (10) is fixedly connected at the bottom of the central controller (6). Handle slots (4) are respectively opened on both sides of the mounting base (2). A grip structure is provided in the handle slots (4). The grip structure includes a handle (3) inserted into a handle groove (4). The top and bottom of the handle groove (4) are connected to a movable groove (16). Multiple sets of springs (19) are welded to the inner wall of the movable groove (16). A locking block (17) is welded to the other end of each spring (19). The movable groove (16) and the handle groove (4) are connected. A locking groove (18) is machined at the root of the handle groove (4). The locking block (17) matches the shape of the locking groove (18) and forms a locking and fixing.

2. The wall surface grinding equipment for building decoration according to claim 1, characterized in that: The mounting base (2) has an outer shell (1) fixed at its bottom end, and the outer shell (1) covers the outside of the grinding disc (20).

3. The wall surface grinding equipment for building decoration according to claim 1, characterized in that: The handle (3) is provided in two sets, and the handle (3) is symmetrically distributed about the mounting base (2).

4. The wall surface grinding equipment for building decoration according to claim 1, characterized in that: The central controller (6) is equipped with red and green operation indicator lights (8), and the central controller (6) is also equipped with a speed controller (9) and a main switch (7).

5. A wall surface grinding device for building decoration according to claim 1, characterized in that: The wire harness box (10) is fixedly connected to the central controller (6) by screws. A coiled spring disc (11) is movably assembled inside the wire harness box (10). The edge of the coiled spring disc (11) is machined into a serrated groove (12). A power cord (15) is wound around the outside of the coiled spring disc (11).

6. A wall surface grinding device for building decoration according to claim 1, characterized in that: A stop rod (14) is inserted into the bottom of the wire harness box (10). A limit rod (13) is welded to the inner wall of the wire harness box (10). A protrusion (21) is machined in the middle of the stop rod (14). The protrusion (21) is snapped and fixed with the limit rod (13). The top of the stop rod (14) is snapped into the sawtooth groove (12).

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