Dust cover for sander

Abstract

The application relates to a dustproof device of a sander, in particular to a dustproof cover of a sander, which comprises a dustproof cover main body and a dismounting assembly, a first mounting support is arranged in the dustproof cover main body, and the support is movably connected with the dustproof cover main body in the axial direction; the dismounting assembly comprises a dismounting shell and a second mounting support, the dismounting shell is matched with the dustproof cover main body to form a complete circular shell, and the second mounting support is matched with the first mounting support to form a circular mounting support. Through the unique structural design, the application effectively reduces the diffusion of dust generated in the polishing process, improves the polishing effect, facilitates dismounting and maintenance, and prolongs the service life of the equipment.

Description

Technical Field

[0001] This application relates to the field of grinding machine equipment technology, and in particular to a dust cover for a grinding machine. Background Technology

[0002] Grinding machines are common specialized tools in the decoration industry. Due to uneven ground, grinding machines are needed to smooth it out. The related technology of grinding machines includes the machine body, on which a grinding disc is rotatably connected. A dustproof component, either a brush ring or a rubber ring, is installed on the outer wall of the machine body. The lower end of the dustproof component is flush with the lower surface of the grinding disc, which is located inside the dustproof component. When the grinding disc comes into contact with the ground, the dustproof component simultaneously comes into contact with the ground, thus blocking gravel or dust during grinding and reducing pollution to the working environment.

[0003] Existing grinding machines are equipped with dustproof components, which are made of brush rings. The brush rings are placed around the grinding disc to form a wrap around the grinding disc and block the dust generated during the grinding process.

[0004] Grinding machines are generally round. During grinding, the dust cover makes it difficult for round grinding machines to grind the corners and edges of the floor. Therefore, it is necessary to partially remove the dust cover and use the grinding disc to grind the corners and edges directly. During disassembly, the dust cover must be removed to avoid interfering with the grinding disc's operation. A patent application (CN221871644U) entitled "A Dust Cover for a Grinding Machine" discloses a utility model patent that uses a structure where the dust cover is a combination of a first dust cover and a second dust cover. During disassembly, the second dust cover can be removed, allowing the grinding disc to grind the corners and edges directly. While the grinding disc can also prevent dust, when the grinding disc becomes thinner, the first and second dustproof components slide independently along the axial direction of the outer shell. During actual operation of the grinding machine, it is impossible to balance the distance the first and second dustproof components move inside the outer shell (i.e., it is impossible to ensure that the first and second dustproof components are subjected to the same longitudinal force). This causes the brush rings on the first and second dustproof components to be subjected to different lateral forces at different locations, resulting in uneven inward curling of the brushes on the brush rings of the first and second dustproof components, which seriously affects the grinding effect of the grinding machine on the ground. Summary of the Invention

[0005] To address the problem in existing technologies where, during actual operation of a grinding machine, the distance the first and second dustproof components move within the outer casing cannot be balanced, resulting in different lateral forces on the brush rings of the first and second dustproof components at different locations. This leads to inconsistent inward curling of the brushes on the brush rings of the first and second dustproof components, severely affecting the grinding effect of the grinding machine on the ground, this application provides a dust cover for a grinding machine.

[0006] The present application provides a dust cover for a grinding machine, which adopts the following technical solution: A dust cover for a grinding machine includes a dust cover body and a disassembly assembly. The dust cover body is provided with a first mounting bracket inside. The first mounting bracket is axially movably connected to the dust cover body. The disassembly assembly includes a disassembly housing. The disassembly housing cooperates with the dust cover body to form a complete circular housing. A second mounting bracket is connected inside the disassembly housing. The disassembly assembly is detachably connected to the first mounting bracket. The second mounting bracket cooperates with the first mounting bracket to form a ring-shaped mounting bracket.

[0007] By adopting the above technical solution, the design of the dust cover body and the detachable components enables quick assembly and disassembly of the dust cover, facilitating the removal of some dust cover components when grinding edge areas of the grinder, thereby improving grinding efficiency. Simultaneously, the combination of the first and second mounting brackets forms a circular mounting bracket, ensuring that the brush can evenly cover the entire grinding area during normal grinding, effectively blocking dust and gravel and reducing environmental pollution. Furthermore, the second mounting bracket is connected to the first mounting bracket, and during use, the second and first mounting brackets move axially synchronously, ensuring that the inward curl of the brushes on both brackets is consistent, improving the grinding effect.

[0008] Optionally, a plurality of limiting screws are evenly spaced along the circumference inside the dust cover body. Each limiting screw is fitted with a limiting washer. The inner wall of the first mounting bracket has a limiting protrusion corresponding to the limiting screw. The limiting screws axially limit the first mounting bracket through the cooperation of the limiting protrusion and the limiting washer, preventing the first mounting bracket from detaching from the dust cover body.

[0009] By adopting the above technical solution, the cooperation between the limiting screw and the limiting protrusion effectively prevents the first mounting bracket from falling off in the axial direction, ensuring the stability and reliability of the first mounting bracket within the dust cover body, thereby improving the safety of the grinder during operation.

[0010] Optionally, a plurality of second springs are evenly spaced along the circumference between the first mounting bracket and the dust cover body, and a plurality of connecting protrusions are provided on the upper surface of the first mounting bracket, with the second springs sleeved on the connecting protrusions.

[0011] By adopting the above technical solution, the second spring between the first mounting bracket and the dust cover body can effectively buffer the axial force on the first mounting bracket, keeping it stable under different terrain conditions and preventing the brush from curling inward due to uneven force. At the same time, the design of the connecting protrusion allows the second spring to be installed more securely, ensuring that the first mounting bracket will not shift during operation, thus improving the working efficiency and grinding quality of the grinder.

[0012] Optionally, the first mounting bracket has an upwardly extending snap-fit ​​portion on one side, and the dust cover body has a corresponding slot on the snap-fit ​​portion. The first mounting bracket is movably connected to the dust cover body through the engagement of the snap-fit ​​portion and the slot.

[0013] By adopting the above technical solution, the movable connection between the first mounting bracket and the dust cover body ensures that the first mounting bracket can move freely inside the dust cover body without falling off, thus improving the stability and reliability of the dust cover. Simultaneously, this design allows the first mounting bracket to maintain a relatively stable axial position when subjected to different forces, reducing the inward curling of the brushes caused by uneven force, thereby improving the grinding effect of the grinder on the floor.

[0014] Optionally, the detachable housing and the second mounting bracket cooperate to form a clamping mechanism, and are fixedly clamped and connected to the snap-fit ​​portion.

[0015] By adopting the above technical solution, the clamping mechanism formed by the cooperation of the disassembly housing and the second mounting bracket can firmly fix the snap-fit ​​part on the first mounting bracket, ensuring a stable connection between the first mounting bracket and the dust cover body. This design not only improves the overall stability of the dust cover but also effectively avoids the problem of reduced dustproof effect caused by the loosening of the first mounting bracket. At the same time, this clamping connection method facilitates disassembly and assembly, allowing users to quickly remove part of the dust cover when grinding corner areas, thus improving work efficiency.

[0016] Optionally, the second mounting bracket has an upwardly extending connecting portion on one side, and a connecting post is provided inside the disassembly housing. The connecting post is movably sleeved inside the connecting portion, and a first spring is provided between the connecting post and the connecting portion.

[0017] By adopting the above technical solution, the connecting part and the connecting column cooperate to form an openable clamping structure with the second mounting bracket. Through the elastic force of the first spring, the disassembly housing and the second mounting bracket can be clamped and fixed with the first mounting bracket.

[0018] Optionally, the disassembly housing has an L-shaped first clamping part extending outward from the side facing the snap-fit ​​part, and the connecting part has an L-shaped second clamping part extending outward from the side facing the snap-fit ​​part. The first clamping part and the second clamping part cooperate with each other to clamp the upper and lower sides of the snap-fit ​​part.

[0019] By adopting the above technical solution, the first clamping part and the second clamping part cooperate with each other to clamp the upper and lower sides of the snap-fit ​​part, thereby ensuring a stable connection between the first mounting bracket and the disassembly housing, effectively preventing the first mounting bracket from loosening or falling off due to vibration or other reasons during the grinding process, improving the overall stability and reliability of the dust cover, and ensuring that the dustproof effect is not affected.

[0020] Optionally, the bottom sides of the snap-fit ​​portion are recessed inward to form a groove, and the two ends of the second mounting bracket are provided with protrusions that cooperate with the grooves. The grooves and the protrusions cooperate to limit the axial movement between the second mounting bracket and the first mounting bracket.

[0021] By adopting the above technical solution, the grooves formed by the inward indentation on both sides of the bottom of the snap-fit ​​part cooperate with the protrusions at both ends of the second mounting bracket, which can effectively restrict the axial movement between the second mounting bracket and the first mounting bracket, ensuring that the two maintain a stable positional relationship during the grinding process. This avoids the problem of inconsistent brush inward curl caused by the movement of the mounting bracket, and improves the dustproof effect and grinding quality of the grinding machine.

[0022] Optionally, a first brush is connected to the bottom of the first mounting bracket, and a second brush is connected to the bottom of the second mounting bracket, with the first brush and the second brush cooperating to form a ring-shaped brush.

[0023] By adopting the above technical solution, a first brush is connected to the bottom of the first mounting bracket, and a second brush is connected to the bottom of the second mounting bracket. The first and second brushes work together to form a circular brush, which effectively blocks and collects dust during the polishing process, improving dust prevention and reducing pollution to the working environment. At the same time, the circular brush design ensures consistent dust prevention at different locations, avoiding the problem of uneven brush curling affecting polishing quality.

[0024] Optionally, the bottom of the first mounting bracket is connected to a first rubber ring, and the bottom of the second mounting bracket is connected to a second rubber ring, the first rubber ring and the second rubber ring cooperating to form a circular rubber ring.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By designing the dust cover body and disassembly components as detachable connections, some dust cover parts can be easily removed when grinding corner areas, ensuring that the grinding disc can directly contact and grind corner areas, thus improving the applicability and flexibility of the grinder; 2. The limiting screws inside the dust cover body and the limiting protrusions on the first mounting bracket ensure the axial stability and uniform force distribution of the first mounting bracket, preventing the first mounting bracket from detaching from the dust cover body, facilitating the disassembly and assembly of the first mounting bracket, and preventing the brush from curling inward due to uneven force distribution in different parts, thus improving the polishing effect. 3. The clamping mechanism formed by the disassembly and assembly housing and the second mounting bracket, through the cooperation of the snap-fit ​​part and the slot, as well as the buffering effect of the first spring, ensures a reliable connection between the disassembly and assembly components and the first mounting bracket. The second mounting bracket is connected to the first mounting bracket. During use, the second mounting bracket and the first mounting bracket move axially synchronously, ensuring that the inward curl of the brushes on the first mounting bracket and the second mounting bracket is consistent, improving the polishing effect, and enhancing the overall structural stability and dustproof effect. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a dust cover for a grinding machine in an embodiment of this application.

[0027] Figure 2 This is an exploded schematic diagram of a dust cover for a grinder in an embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the bottom structure of a dust cover for a grinding machine in an embodiment of this application.

[0029] Figure 4 This is a dust cover for a grinder in one of the embodiments of this application. Figure 3 A schematic diagram of the AA section structure.

[0030] Figure 5 This is a schematic diagram of the connection structure between the disassembly and assembly shell and the second mounting bracket of a dust cover for a grinding machine according to Embodiment 1 of this application. Figure 6 This is an exploded schematic diagram of a dust cover for a grinding machine according to Embodiment 2 of this application. Figure 7 This is a schematic diagram of the connection structure between the mounting bracket of a dust cover for a grinder and the first and second rubber rings in Embodiment 2 of this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Dust cover body; 2. Disassembly / assembly assembly; 21. Disassembly / assembly housing; 22. Button; 23. Second mounting bracket; 24. First clamping part; 25. Connecting part; 26. Second clamping part; 27. Connecting post; 28. First spring; 29. ​​Protrusion; 3. First mounting bracket; 31. Connecting protrusion; 32. Limiting protrusion; 33. Snap-fit ​​part; 34. Groove; 4. Second spring; 5. Limiting screw; 6. First brush; 7. Second brush; 8. Limiting washer; 9. First rubber ring; 10. Second rubber ring; 11. Threaded hole. Detailed Implementation

[0032] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0033] Please see Figure 1-5 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of this application and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this application, should still fall within the scope of the technical content disclosed in this application. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this application. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this application's implementation.

[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0035] Example 1: This embodiment discloses a dust cover for a grinding machine.

[0036] Reference Figure 1 and Figure 2 A dust cover for a grinding machine includes a dust cover body 1, a first mounting bracket 3 inside the dust cover body 1, and a disassembly assembly 2 connected to one side of the dust cover body 1. The disassembly assembly 2 includes a disassembly housing 21 and a second mounting bracket 23. The disassembly housing 21 cooperates with the dust cover body 1 to form a circular integral housing. The second mounting bracket 23 cooperates with the first mounting bracket 3 to form a ring-shaped mounting bracket. A first brush 6 is connected to the bottom of the first mounting bracket 3, and a second brush 7 is connected to the bottom of the second mounting bracket 23.

[0037] Reference Figure 3 and Figure 4The first mounting bracket 3 has a snap-fit ​​part 33 extending upward on one side. The dust cover body 1 has a corresponding slot. The snap-fit ​​part 33 is movably snapped into the slot. The dust cover body 1 has several limit screws 5 evenly spaced along the circumference inside. Limiting washers 8 are fitted on the limit screws 5. Limiting protrusions 32 are correspondingly provided on the inner wall of the first mounting bracket 3. The limiting protrusions 32 abut against the edge of the limiting washers 8. Several second springs 4 are provided between the first mounting bracket 3 and the dust cover body 1. The upper surface of the first mounting bracket 3 has a connecting protrusion 31 corresponding to the second springs 4. The second springs 4 are fitted on the connecting protrusions 31.

[0038] Reference Figure 4 and Figure 5 The second mounting bracket 23 has an upwardly extending connecting portion 25 on one side. The disassembly housing 21 has a connecting post 27 inside, which is movably fitted inside the connecting portion 25. A first spring 28 is provided between the connecting post 27 and the connecting portion 25. A button 22 is provided on the top of the disassembly housing 21, which abuts against the connecting portion 25. An L-shaped first clamping portion 24 extends outward from the side of the disassembly housing 21 facing the snap-fit ​​portion 33. An L-shaped second clamping portion 26 extends outward from the side of the connecting portion 25 facing the snap-fit ​​portion 33. The first clamping portion 24 and the second clamping portion 26 cooperate to clamp the upper and lower sides of the snap-fit ​​portion 33. The bottom sides of the snap-fit ​​portion 33 are recessed inward to form a groove 34. The second mounting bracket 23 has protrusions 29 at both ends that cooperate with the grooves 34. The grooves 34 and the protrusions 29 cooperate to axially limit the distance between the second mounting bracket 23 and the first mounting bracket 3.

[0039] The implementation principle of a dust cover for a grinding machine in this embodiment is as follows: The disassembly assembly 2 is clamped and fixed to one side of the first mounting bracket 3 through the cooperation of the disassembly housing 21 and the second mounting bracket 23. During use, the second mounting bracket 23 moves up and down synchronously with the first mounting bracket 3, thereby ensuring that the inward curl of the brushes on the first mounting bracket 3 and the second mounting bracket 23 is consistent, improving the polishing effect and enhancing the overall structural stability and dustproof effect. When polishing the corner area of ​​the ground, if the disassembly assembly 2 needs to be disassembled, press the button 22. The button 22 pushes the second mounting bracket 23 to move downward along the connecting column 27, compresses the first spring 28, and opens the second clamping part 26 and the first clamping part 24 on one side of the second mounting bracket 23 and the disassembly housing 21. The disassembly assembly 2 is separated from the first mounting bracket 3, thereby realizing the quick disassembly and assembly of the disassembly assembly 2. When polishing the corners, the first brush 6 can still achieve the dustproof effect, improving the polishing effect of the polisher.

[0040] Example 2: The difference between this embodiment and Embodiment 1 is that, in this embodiment, the bottom of the first mounting bracket 3 is connected to a first rubber ring 9, and the bottom of the second mounting bracket 23 is connected to a second rubber ring 10. The first rubber ring 9 and the second rubber ring 10 cooperate to form a circular rubber ring. Both the first rubber ring 9 and the second rubber ring 10 are provided with screw holes 11. The first mounting bracket 3 and the second mounting bracket 23 are also provided with corresponding screw holes. The first rubber ring 9 and the second rubber ring 10 are respectively fixedly installed on the first mounting bracket 3 and the second mounting bracket 23 by screws, which facilitates the disassembly and replacement of the first rubber ring 9 and the second rubber ring 10 without disassembling the first mounting bracket 3 and the second mounting bracket 23. This makes it more convenient to use and reduces the cost of use.

[0041] In summary, this application designs the dust cover body and the disassembly assembly as detachable connections, allowing for easy removal of some dust-proof components when grinding corner areas. This ensures the grinding disc can directly contact and grind corner areas, improving the applicability and flexibility of the grinder. The limiting screws inside the dust cover body and the limiting protrusions on the first mounting bracket ensure the axial stability and uniform force distribution of the first mounting bracket, preventing it from detaching from the dust cover body and facilitating its disassembly and assembly. It also prevents brush inward curling caused by uneven force distribution in different areas, improving the grinding effect. The clamping mechanism formed by the disassembly housing and the second mounting bracket, through the cooperation of the snap-fit ​​part and slot, and the buffering effect of the first spring, ensures a reliable connection between the disassembly assembly and the first mounting bracket. The second mounting bracket is connected to the first mounting bracket, and during use, the second and first mounting brackets move axially synchronously, ensuring consistent brush inward curling on both brackets, improving the grinding effect, and enhancing the overall structural stability and dustproof performance. Therefore, this application effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0042] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered within the protection scope of this application.

Claims

1. A dust cover for a grinding machine, characterized in that, The assembly includes a dust cover body (1) and a disassembly assembly (2). The dust cover body (1) is provided with a first mounting bracket (3) inside. The first mounting bracket (3) is axially connected to the dust cover body (1). The disassembly assembly (2) includes a disassembly housing (21). The disassembly housing (21) cooperates with the dust cover body (1) to form a complete circular housing. The disassembly housing (21) is connected with a second mounting bracket (23) inside. The disassembly assembly (2) is detachably connected to the first mounting bracket (3). The second mounting bracket (23) cooperates with the first mounting bracket (3) to form a ring-shaped mounting bracket. A plurality of second springs (4) are evenly spaced along the circumference between the first mounting bracket (3) and the dust cover body (1). A plurality of connecting protrusions (31) are provided on the upper surface of the first mounting bracket (3). The second springs (4) are sleeved on the connecting protrusions (31). The first mounting bracket (3) has an upwardly extending snap-fit ​​part (33) on one side, and the dust cover body (1) has a slot corresponding to the snap-fit ​​part (33). The first mounting bracket (3) is movably connected to the dust cover body (1) through the cooperation of the snap-fit ​​part (33) and the slot. The disassembly housing (21) and the second mounting bracket (23) cooperate to form a clamping mechanism and are fixedly clamped and connected to the snap-fit ​​part (33); The second mounting bracket (23) has an upwardly extending connecting part (25) on one side. The disassembly housing (21) has a connecting post (27) inside. The connecting post (27) is movably sleeved inside the connecting part (25). A first spring (28) is provided between the connecting post (27) and the connecting part (25).

2. The dust cover for a grinding machine according to claim 1, characterized in that: The dust cover body (1) has several limiting screws (5) evenly spaced along the circumference inside. Each limiting screw (5) is fitted with a limiting washer (8). The inner wall of the first mounting bracket (3) is provided with a limiting protrusion (32) corresponding to the limiting screw (5). The limiting screw (5) axially limits the first mounting bracket (3) through the cooperation of the limiting protrusion (32) and the limiting washer (8), preventing the first mounting bracket (3) from detaching from the dust cover body (1).

3. A dust cover for a grinding machine according to claim 1, characterized in that: The disassembly housing (21) has an L-shaped first clamping part (24) extending outward from the side facing the snap-fit ​​part (33), and the connecting part (25) has an L-shaped second clamping part (26) extending outward from the side facing the snap-fit ​​part (33). The first clamping part (24) and the second clamping part (26) cooperate with each other to clamp the upper and lower sides of the snap-fit ​​part (33).

4. A dust cover for a grinding machine according to claim 1, characterized in that: The bottom sides of the snap-fit ​​part (33) are recessed inward to form a groove (34). The two ends of the second mounting bracket (23) are provided with protrusions (29) that cooperate with the groove (34). The groove (34) and the protrusions (29) cooperate to limit the axial movement between the second mounting bracket (23) and the first mounting bracket (3).

5. A dust cover for a grinding machine according to claim 1, characterized in that: The first mounting bracket (3) is connected to a first brush (6) at its bottom, and the second mounting bracket (23) is connected to a second brush (7) at its bottom. The first brush (6) and the second brush (7) work together to form a ring-shaped brush.

6. A dust cover for a grinding machine according to claim 1, characterized in that: The first mounting bracket (3) is connected to a first rubber ring (9) at its bottom, and the second mounting bracket (23) is connected to a second rubber ring (10) at its bottom. The first rubber ring (9) and the second rubber ring (10) cooperate to form a circular rubber ring.

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