Dustproof mechanism for angle grinder
By designing a dustproof mechanism, the problem of dust entering the head shell of the angle grinder when it is not in use is solved, thereby extending the motor life and improving heat dissipation efficiency without affecting heat dissipation.
Patent Information
- Application Number
- CN202520401810.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-10
AI Technical Summary
When not in use, dust can easily enter the head shell of existing angle grinders through the heat dissipation holes, leading to reduced heat dissipation efficiency and affecting motor performance and lifespan.
A dustproof mechanism is designed, including a protective component and a cleaning component. The heat dissipation holes are covered by a cover plate to prevent dust from entering, and the heat dissipation holes are automatically opened during use. A cleaning brush is also provided to clean the dust on the dustproof screen.
It effectively prevents dust from entering the head shell, improves the lifespan of parts, ensures heat dissipation efficiency, avoids motor overheating, and extends the service life of the equipment.
Smart Images
Figure CN223790149U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to angle grinder technical field especially relates to a dustproof mechanism for angle grinder. BACKGROUND
[0002] Angle grinder is a common electric tool, is widely used in metal, stone, concrete, wood and other material polishing, cutting, polishing and cleaning. Its main feature is to adopt the circular grinding wheel or cutting piece, realizes the processing to the object surface through high speed rotation. Angle grinder because its convenient operation, function is various, is widely used in the field of building, machinery repair, automobile repair, decoration etc.
[0003] In prior art, the head shell of the front end of angle grinder is provided with a heat dissipation hole, and the heat dissipation hole always keeps open state, when not using, dust is easy to enter the transmission gear in the head shell from the heat dissipation hole, too much dust is accumulated in the vicinity of heat dissipation hole or inside the head shell, will hinder the circulation of air, reduce the heat dissipation efficiency, makes angle grinder more easily heat when using motor and other components, influences its performance and life.
[0004] Therefore, the dustproof mechanism for angle grinder is provided to solve the above problems. SUMMARY
[0005] In order to make up for the above shortage, the utility model provides a dustproof mechanism for angle grinder, aims at improving the prior art when not using, dust is easy to enter the transmission gear in the head shell from the heat dissipation hole, too much dust is accumulated in the vicinity of heat dissipation hole or inside the head shell, will hinder the circulation of air, reduce the heat dissipation efficiency, makes angle grinder more easily heat when using motor and other components, influences its performance and life problem.
[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:
[0007] A dustproof mechanism for angle grinder, including angle grinder main part, the end of angle grinder main part is fixedly connected with head shell, the surface of head shell is provided with installation slot, the bottom of installation slot is provided with heat dissipation hole, the surface of head shell is provided with protection assembly, the protection assembly includes recess, the inside of recess is slidably connected with mobile seat, the surface of mobile seat is fixedly connected with cover plate, the side wall of cover plate is fixedly connected with extension plate, the surface of extension plate is provided with threaded hole, and the threaded hole is threadedly connected with fastening bolt.
[0008] As the further description of the above technical scheme:
[0009] The surface of cover plate is provided with cleaning assembly, the surface of installation plate is provided with through hole, and the through hole is slidably connected with guide rod, and the bottom end of guide rod is fixedly connected with cleaning brush.
[0010] As a further description of the above technical solutions:
[0011] The cleaning brush is elastically connected with the mounting plate through a supporting spring, and the supporting spring is sleeved on the outer wall of the guide rod.
[0012] As a further description of the above technical solutions:
[0013] The surface of the head shell is fixedly connected with a wear-resistant rubber pad, and the position of the fastening bolt corresponds to the position of the wear-resistant rubber pad.
[0014] As a further description of the above technical solutions:
[0015] The inside of the mounting groove is fixedly installed with a dustproof net.
[0016] As a further description of the above technical solutions:
[0017] A through hole is formed in the side wall of the moving seat, a positioning rod is slidably connected in the through hole, and the end of the positioning rod is fixedly connected to the inner wall of the groove.
[0018] As a further description of the above technical solutions:
[0019] The moving seat and the inner wall of the groove are elastically connected through a reset spring.
[0020] The utility model has the advantages of the following beneficial effects:
[0021] 1. In the utility model, the dustproof net and the heat dissipation hole are covered by the cover plate, so that the dust in the air cannot enter the head shell through the dustproof net when the angle grinder body is not used, the service life of the parts in the head shell is improved, and when the angle grinder body is used, the cover plate is moved to remove the cover of the dustproof net, so that the heat dissipation hole is opened, thereby providing the heat dissipation effect.
[0022] 2. In the utility model, the extension plate is moved synchronously by the movement of the cover plate, the cleaning assembly is also moved, the cleaning brush keeps the pressure on the dustproof net under the elastic force of the supporting spring, the surface of the dustproof net is cleaned, the attached dust is brushed off, the dustproof net is prevented from being blocked by dust, and the ventilation effect of the dustproof net is affected. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 The utility model provides a kind of overall structure schematic diagram of dustproof mechanism for angle grinder;
[0024] Figure 2 The utility model provides a kind of head shell structure schematic diagram of dustproof mechanism for angle grinder;
[0025] Figure 3The utility model provides a kind of dustproof mechanism's protective assembly, cleaning assembly structure schematic view for angle grinder.
[0026] Legend:
[0027] 1, angle grinder main body;2, head shell;21, installation groove;22, heat dissipation hole;23, dust screen;3, protective assembly;31, recess;32, moving seat;33, cover plate;34, positioning rod;35, reset spring;36, extension plate;37, fastening bolt;38, wear-resistant rubber pad;4, cleaning assembly;41, mounting plate;42, guide rod;43, cleaning brush;44, support spring. Specific embodiments
[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0029] Refer to Figure 1 - Figure 2 An embodiment provided by the utility model: a dustproof mechanism for angle grinder, including angle grinder main body 1, the end of the angle grinder main body 1 is fixedly connected with head shell 2, the surface of the head shell 2 is equipped with installation groove 21, the bottom of the installation groove 21 is equipped with heat dissipation hole 22, the inside of the installation groove 21 is fixedly installed with dust screen 23, installation groove 21 is used to install dust screen 23, dust screen 23 can effectively filter dust in air, and heat dissipation hole 22 helps the parts in head shell 2 to dissipate heat, to prevent overheating.
[0030] Refer to Figure 2 - Figure 3The surface of the head shell 2 is provided with a protection assembly 3, which is used to block the dust screen 23 and the heat dissipation hole 22, so as to avoid dust in the air entering the head shell 2 through the dust screen 23 when the angle grinder body 1 is not used, and improve the service life of the parts in the head shell 2. The protection assembly 3 comprises a groove 31, a moving seat 32 is slidably connected in the groove 31, a cover plate 33 is fixedly connected to the surface of the moving seat 32, a through hole is formed in the side wall of the moving seat 32, and a positioning rod 34 is slidably connected in the through hole, and the end of the positioning rod 34 is fixedly connected to the inner wall of the groove 31. The groove 31 is used to provide a track for the movement of the moving seat 32, the positioning rod 34 is used to position and guide the moving seat 32, so that the moving seat 32 moves stably along the inner wall of the groove 31, and the cover plate 33 is used to cover the dust screen 23, so as to block the dust screen 23 and the heat dissipation hole 22, and prevent dust from entering. When the angle grinder body 1 is used, the cover plate 33 is moved to remove the shielding of the dust screen 23, so that the heat dissipation hole 22 is opened, thereby providing a heat dissipation effect.
[0031] With reference to Figure 2 - Figure 3 The moving seat 32 and the inner wall of the groove 31 are elastically connected by a return spring 35, which provides elastic support for the moving seat 32, so that the position of the moving seat 32 can be quickly reset after movement. The side wall of the cover plate 33 is fixedly connected with an extension plate 36, the surface of the extension plate 36 is provided with a threaded hole, and a fastening bolt 37 is threadedly connected in the threaded hole. The surface of the head shell 2 is fixedly connected with a wear-resistant rubber pad 38, and the positions of the fastening bolt 37 and the wear-resistant rubber pad 38 correspond. By rotating the round block at the top end of the fastening bolt 37, the fastening bolt 37 moves downward, so that the fastening bolt 37 is in close contact with the wear-resistant rubber pad 38, thereby fixing the cover plate 33, and the wear-resistant rubber pad 38 can avoid wear caused by hard contact between the head shell 2 and the fastening bolt 37.
[0032] With reference to Figure 3The surface of the cover plate 33 is provided with a cleaning assembly 4 for cleaning the dust attached to the surface of the dust screen 23 and ensuring the ventilation effect of the dust screen 23. The cleaning assembly 4 comprises a mounting plate 41, the surface of the mounting plate 41 is provided with a through hole, and a guide rod 42 is slidably connected in the through hole. The bottom end of the guide rod 42 is fixedly connected with a cleaning brush 43. The guide rod 42 is used for positioning and guiding the cleaning brush 43, so that the cleaning brush 43 can move in the vertical direction. The cleaning brush 43, the mounting plate 41 and the guide rod 42 are synchronously moved by the movement of the cover plate 33, so as to clean the dust screen 23. The cleaning brush 43 and the mounting plate 41 are elastically connected through a supporting spring 44 which is sleeved on the outer wall of the guide rod 42. The supporting spring 44 provides elastic support for the cleaning brush 43. The cleaning brush 43 keeps moving downward and closely contacts with the surface of the dust screen 23, so as to improve the cleaning effect of the dust screen 23.
[0033] Working principle: The cover plate 33 covers the dust screen 23 from above, so as to shield the dust screen 23 and the heat dissipation hole 22, prevent the dust from entering, and avoid the dust in the air from entering the head shell 2 through the dust screen 23 when the angle grinder body 1 is not used, thereby improving the service life of the parts in the head shell 2.
[0034] When the angle grinder body 1 needs to be used, first rotate the fastening bolt 37 to make the fastening bolt 37 out of contact with the wear-resistant rubber pad 38, release the fixing effect of the cover plate 33, push the moving seat 32 to move along the positioning rod 34 away from the dust screen 23, and fix the cover plate 33 through the close contact of the fastening bolt 37 and the wear-resistant rubber pad 38, so that the heat dissipation hole 22 is opened to provide the heat dissipation effect.
[0035] Meanwhile, the movement of the cover plate 33 drives the extension plate 36 to move synchronously, and the cleaning assembly 4 also moves. The cleaning brush 43 keeps the pressure on the dust screen 23 under the elastic force of the supporting spring 44, and cleans the surface of the dust screen 23 to brush off the attached dust, so as to prevent the dust from blocking the dust screen 23 and affecting the ventilation effect of the dust screen 23.
[0036] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A dust-proof mechanism for an angle grinder, comprising an angle grinder main body (1), characterized in that: The end of the angle grinder body (1) is fixedly connected with a head shell (2), a mounting groove (21) is arranged on the surface of the head shell (2), a heat dissipation hole (22) is arranged in the bottom of the mounting groove (21), a protection assembly (3) is arranged on the surface of the head shell (2), the protection assembly (3) comprises a groove (31), a moving seat (32) is slidably connected in the groove (31), a cover plate (33) is fixedly connected to the surface of the moving seat (32), an extension plate (36) is fixedly connected to the side wall of the cover plate (33), a threaded hole is arranged on the surface of the extension plate (36), and a fastening bolt (37) is threadedly connected in the threaded hole.
2. The dust-proof mechanism for an angle grinder according to claim 1, characterized in that: A cleaning assembly (4) is arranged on the surface of the cover plate (33), the cleaning assembly (4) comprises an installation plate (41), a through hole is arranged on the surface of the installation plate (41), and a guide rod (42) is slidably connected in the through hole, and the bottom end of the guide rod (42) is fixedly connected with a cleaning brush (43).
3. The dust-proof mechanism for an angle grinder according to claim 2, characterized in that: The cleaning brush (43) and the installation plate (41) are elastically connected through a supporting spring (44), and the supporting spring (44) is sleeved on the outer wall of the guide rod (42).
4. The dust-proof mechanism for an angle grinder according to claim 1, characterized in that: A wear-resistant rubber pad (38) is fixedly connected to the surface of the head shell (2), and the position of the fastening bolt (37) corresponds to the position of the wear-resistant rubber pad (38).
5. The dust-proof mechanism for an angle grinder according to claim 1, characterized in that: A dust screen (23) is fixedly installed in the mounting groove (21).
6. The dust-proof mechanism for an angle grinder according to claim 1, characterized in that: A through hole is arranged on the side wall of the moving seat (32), and a positioning rod (34) is slidably connected in the through hole, and the end of the positioning rod (34) is fixedly connected to the inner wall of the groove (31).
7. The dust-proof mechanism for an angle grinder according to claim 1, characterized in that: The moving seat (32) and the inner wall of the groove (31) are elastically connected through a return spring (35).