Dustproof auxiliary device for angle grinder

Abstract

The utility model belongs to the technical field of angle grinders, and relates to an angle grinder dustproof auxiliary device which comprises a dustproof cover, a fan-shaped first sliding groove is formed in the top of the dustproof cover, a second sliding groove is formed in the side portion of the dustproof cover, the top end of the second sliding groove is communicated with the first sliding groove, and a window is formed in the position, located in the middle of the first sliding groove, of the dustproof cover. The window penetrates through the second sliding groove, two fan-shaped covers are arranged in the first sliding groove and the second sliding groove in a sliding mode, connecting springs are fixedly connected between the ends, away from each other, of the two fan-shaped covers and the end face of the corresponding first sliding groove, and the two fan-shaped covers are arranged in the window in a sliding mode. The polishing device has the advantages that the dust cover is moved to enable the rolling wheels to move on an object and drive the fan-shaped covers to slide in the dust cover, so that the distance between the two fan-shaped covers is increased, the polishing disc can be conveniently exposed out of the window between the two fan-shaped covers for polishing, the fan-shaped covers do not need to be detached, operation is easy and convenient, and working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of angle grinder technology and relates to a dust prevention auxiliary device for angle grinders. Background Technology

[0002] An angle grinder is a handheld power tool that uses fiberglass for cutting and grinding, primarily used for cutting, grinding, and brushing metals and stone. During the grinding process, the grinding disc on the angle grinder rotates at high speed, rubbing against the workpiece surface and generating a large amount of dust. If this dust is not properly protected, it can be inhaled by the worker, affecting their health. Therefore, it is necessary to install a dust cover on the grinder to block the dust and prevent it from entering the worker's face. Thus, a dust protection auxiliary device is needed.

[0003] A quick-release dust cover disclosed in Chinese patent CN220561267U includes a cover, a dust suction port fixedly connected to the upper surface of the cover, a side cover provided on the outer surface of the cover, a quick-release assembly provided at the connection between the side cover and the cover, the quick-release assembly including a first hollow cylinder provided at the break of the cover, a first magnet fixedly connected inside the first hollow cylinder, a recessed hole opened at the break of the cover, a second hollow cylinder fixedly connected to the outer surface of the side cover, a second magnet fixedly connected inside the second hollow cylinder, and a convex shaft fixedly connected to the outer surface of the side cover.

[0004] During use, if the grinding disc needs to grind the edges and corners of an object, the dust cover needs to be pulled outwards to remove it, exposing the grinding disc for grinding. This requires turning off the angle grinder before disassembly, making the process cumbersome and reducing work efficiency.

[0005] To address the aforementioned problems, this utility model proposes a dust prevention auxiliary device for angle grinders. Utility Model Content

[0006] To address the problems existing in the background technology, this utility model proposes a dust prevention auxiliary device for angle grinders.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a dust cover is provided, the top of the dust cover is provided with a fan-shaped first groove, the side of the dust cover is provided with a second groove, the top of the second groove is connected to the first groove, and the dust cover is provided with a window at the middle of the first groove, the window passing through the second groove.

[0008] The first and second slides are equipped with two fan-shaped covers. Each of the two fan-shaped covers is fixedly connected to the end face of the corresponding first slide with a connecting spring at the far end. Both fan-shaped covers are slidably disposed inside the window.

[0009] Furthermore, the connecting spring includes a first spring and a second spring, one end of which is fixedly connected to the side of the fan-shaped cover, and the other end of which is fixedly connected to the end face of the first slide groove.

[0010] Furthermore, an arc-shaped first arc ring is fixedly connected inside the first groove. The first arc ring slides through the two fan-shaped covers, and the two first springs are both sleeved on the first arc ring.

[0011] Both ends of the first groove are fixedly connected to an arc-shaped second arc ring, and two fan-shaped covers are slidably sleeved on the corresponding second arc rings, and the second spring is sleeved on the corresponding second arc rings.

[0012] Furthermore, connecting rods are fixedly connected to the top and bottom of the two fan-shaped covers at their closest ends, and rollers are rotatably connected between the two connecting rods located on the same fan-shaped cover.

[0013] Furthermore, brushes are fixedly connected to the bottom surfaces of the dust cover and the two fan-shaped covers.

[0014] Furthermore, the top of the dust cover is provided with a dust outlet, and a dust suction interface is fixedly connected inside the dust outlet.

[0015] Furthermore, a through hole is provided in the middle of the top surface of the dust cover, a mounting plate is fixedly connected to the top of the dust cover, a clamp is fixedly connected to one side of the mounting plate, a bolt is provided at the opening of the clamp, and the clamp is located at the top of the through hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The dustproof auxiliary device of this angle grinder has two fan-shaped covers that slide in the first groove. The two fan-shaped covers work together to block the window. When it is necessary to grind the edges and corners of an object, the dust cover is moved so that the two rollers come into contact with the object. Moving the dust cover closer to the object will squeeze the rollers, causing them to move on the object and drive the fan-shaped covers to slide inside the dust cover. This increases the distance between the two fan-shaped covers, so that the grinding disc can be exposed from the window between the two fan-shaped covers for grinding. There is no need to disassemble the fan-shaped covers, making the operation simple and improving work efficiency.

[0018] 2. The dustproof auxiliary device of the angle grinder is equipped with a fan-shaped cover. When the fan-shaped cover moves on the dust cover, it will compress the first spring and the second spring. After grinding the edges and corners of the object, the dust cover is moved so that the roller leaves the object. At this time, the first spring and the second spring push the fan-shaped cover to move into the window, so that the two fan-shaped covers continue to cooperate to seal the window, which facilitates the continued dustproofing. Attached Figure Description

[0019] Figure 1This is a first-view three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective;

[0021] Figure 3 This is a schematic diagram of the structure of the fan-shaped cover in this utility model.

[0022] In the diagram: 1. Dust cover; 2. Clamp; 3. Bolt; 4. Dust suction port; 5. Fan-shaped cover; 6. First arc ring; 7. First spring; 8. Second arc ring; 9. Second spring; 10. Roller; 11. Connecting rod; 12. Brush; 13. First slide groove; 14. Second slide groove; 15. Window; 16. Mounting plate. Detailed Implementation

[0023] 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.

[0024] like Figures 1-3 As shown, the technical solution adopted by this utility model is as follows: A dustproof auxiliary device for an angle grinder includes a dust cover 1, the top of which has a fan-shaped first sliding groove 13. The first sliding groove 13 is horizontally arranged. A second sliding groove 14 is provided on the side of the dust cover 1, and the second sliding groove 14 is vertically arranged. The top of the second sliding groove 14 is connected to the first sliding groove 13.

[0025] The dust cover 1 has a window 15 in the middle of the first slide 13, and the window 15 passes through the second slide 14.

[0026] Two sector-shaped covers 5 are slidably disposed inside the first slide groove 13 and the second slide groove 14. A connecting spring is fixedly connected to the end of each sector-shaped cover 5 that is far apart from the other. Both sector-shaped covers 5 are slidably disposed within the window 15. The two sector-shaped covers 5 cooperate to seal the window 15.

[0027] Two fan-shaped covers 5 are fixedly connected to the top and bottom of their respective ends with connecting rods 11. Rollers 10 are rotatably connected between the two connecting rods 11 on the same fan-shaped cover 5. When the rollers 10 move, they cause the fan-shaped cover 5 to slide on the dust cover 1, thereby exposing the central area of ​​the window 15 to facilitate the grinding work of the grinding disc.

[0028] The connecting springs include a first spring 7 and a second spring 9. One end of each of the first spring 7 and the second spring 9 is fixedly connected to the side of the sector-shaped cover 5, and the other end of each is fixedly connected to the end face of the first slide groove 13. In the initial state, the first spring 7 and the second spring 9 push the sector-shaped cover 5, causing the two sector-shaped covers 5 to slide into the interior of the window 15, with the adjacent ends of the two sector-shaped covers 5 contacting each other, thereby sealing the window 15.

[0029] An arc-shaped first arc ring 6 is fixedly connected inside the first groove 13, and the first arc ring 6 slides through the two fan-shaped covers 5. Two first springs 7 are both sleeved on the first arc ring 6. The first arc ring 6 restricts the first springs 7 to facilitate their return to their original position.

[0030] Both ends of the first slide groove 13 are fixedly connected to arc-shaped second arc rings 8, and two fan-shaped covers 5 are slidably sleeved on the corresponding second arc rings 8. The second spring 9 is sleeved on the corresponding second arc ring 8. The second arc rings 8 limit the second spring 9 to facilitate its return to its original position.

[0031] The bottom surfaces of the dust cover 1 and the two fan-shaped covers 5 are all fixedly connected to brushes 12. After the dust cover 1 is fixed on the grinding disc, the brushes 12 will come into contact with the surface of the workpiece during grinding. When the grinding depth is changed, the brushes 12 will be compressed, and the brushes 12 will seal the bottom of the dust cover 1, thus improving the dust prevention effect.

[0032] The dust cover 1 has a dust outlet on its top, and a suction port 4 is fixedly connected inside the dust outlet. When using the dust cover 1, connect the suction port of a vacuum cleaner to the suction port 4 so that the dust inside the dust cover 1 can be sucked away.

[0033] A through hole is provided in the middle of the top surface of the dust cover 1. A mounting plate 16 is fixedly connected to the top of the dust cover 1, and a clamp 2 is fixedly connected to one side of the mounting plate 16. A bolt 3 is provided at the opening of the clamp 2, and the clamp 2 is located at the top of the through hole. The clamp 2 is a component used to hold or clamp one material with another material. It is a fastener and is an existing product.

[0034] Working principle:

[0035] In use, move the dust cover 1 onto the angle grinder through the through hole, and use bolts 3 to fix the clamp 2 onto the angle grinder, thus securing the dust cover 1. Then install the grinding disc, positioning it inside the dust cover 1. Connect the suction port 4 to the suction port of the vacuum cleaner.

[0036] When the grinding disc is working, the brush 12 comes into contact with the grinding surface of the object. This seals the outside of the grinding disc with the dust cover 1, keeping the dust generated during grinding inside the dust cover 1, thus achieving a dust-proof effect. When the grinding depth is changed, the brush 12 is squeezed, and the brush 12 seals the bottom of the dust cover 1.

[0037] Turn on the vacuum cleaner and suck away the dust and debris inside the dust cover 1 through the suction port 4.

[0038] When grinding the edges and corners of an object, move the angle grinder closer to the object's edge and corner, causing the dust cover 1 to move as well. The two rollers 10 will initially contact the object, then be pressed against it, causing them to rotate and move in opposite directions. The rollers 10 will then move the corresponding sector-shaped cover 5 via the connecting rod 11, causing the sector-shaped cover 5 to slide inside the first groove 13 and the second groove 14, compressing the first spring 7 and the second spring 9.

[0039] The two fan-shaped covers 5 move away from the window 15, exposing the central area of ​​the window 15. At this time, the grinding disc can grind through the exposed part.

[0040] After grinding, move the angle grinder so that roller 10 is away from the object. As roller 10 moves, the first spring 7 and the second spring 9 push the sector covers 5, bringing the two sector covers 5 closer together. This continues until the two sector covers 5 contact and seal the window 15.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dust containment assist device for an angle grinder, characterized in that, The dust cover (1) is provided with a first sliding groove (13) in the top thereof, a second sliding groove (14) in the side thereof, and a window (15) in the middle of the first sliding groove (13). The first sliding groove (13) and the second sliding groove (14) are internally provided with two fan-shaped covers (5), and the ends of the two fan-shaped covers (5) away from each other are fixedly connected with the end faces of the corresponding first sliding grooves (13), and the two fan-shaped covers (5) are slidably arranged in the window (15).

2. An angle grinder dust containment assist device according to claim 1, wherein: The connecting spring comprises a first spring (7) and a second spring (9), one end of the first spring (7) and the second spring (9) is fixedly connected with the side face of the fan-shaped cover (5), and the other end of the first spring (7) and the second spring (9) is fixedly connected with the end face of the first sliding groove (13).

3. An angle grinder dust containment assist device according to claim 2, wherein: The first sliding groove (13) is internally fixedly connected with an arc-shaped first arc-shaped ring (6), the first arc-shaped ring (6) is slidably penetrated through the two fan-shaped covers (5), and the two first springs (7) are sleeved on the first arc-shaped ring (6). The two ends of the first sliding groove (13) are fixedly connected with arc-shaped second arc-shaped rings (8), the two fan-shaped covers (5) are slidably sleeved on the corresponding second arc-shaped rings (8), and the second springs (9) are sleeved on the corresponding second arc-shaped rings (8).

4. The dust containment accessory for an angle grinder of claim 1, wherein: The top and the bottom of the end of the two fan-shaped covers (5) away from each other are fixedly connected with connecting rods (11), and the two connecting rods (11) on the same fan-shaped cover (5) are rotatably connected with a roller (10).

5. The dust containment accessory for an angle grinder of claim 1, wherein: The bottom surfaces of the dust cover (1) and the two fan-shaped covers (5) are fixedly connected with brushes (12).

6. An angle grinder dust containment assist device according to claim 1, wherein: The top of the dust cover (1) is provided with a dust outlet, and the dust outlet is internally fixedly connected with a dust suction interface (4).

7. The dust containment accessory for an angle grinder of claim 1, wherein: The top of the dust cover (1) is provided with a through hole, the top of the dust cover (1) is fixedly connected with a mounting plate (16), one side of the mounting plate (16) is fixedly connected with a hoop (2), the opening of the hoop (2) is provided with a bolt (3), and the hoop (2) is located at the top of the through hole.

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