Angle grinder with dustproof window cover

By designing a dustproof window cover and a dustproof mesh structure that slides between the cover and the outer casing on the angle grinder, the problem of dust entering the housing is solved, achieving good heat dissipation and dust prevention effects, and extending the service life of the angle grinder.

CN223790146UActive Publication Date: 2026-01-13ZHEJIANG HUAFENG ELECTRIC TOOLS
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Patent Information

Application Number
CN202423026940.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2026-01-13
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

The existing through-slot design of angle grinders allows dust to easily enter the housing, affecting the performance and lifespan of electrical components. The existing mesh design also makes it easy for dust to be scraped off during insertion and removal, further exacerbating the situation.

Method used

The dustproof window cover is slidably connected to the outer cover. The dustproof window cover is equipped with a dustproof net and a wind window groove. The combination structure of the wind window groove, long through hole and dustproof net achieves heat dissipation and dust prevention. The dustproof window cover is equipped with claws and chamfers to stabilize the sliding, and the anti-slip protrusions facilitate operation.

Benefits of technology

It effectively reduces dust entering the inner casing, improves the performance and lifespan of the angle grinder, and ensures the normal operation of electrical components.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223790146U_ABST
    Figure CN223790146U_ABST
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Abstract

The utility model belongs to the technical field of electric tools, and particularly relates to an angle grinder with a dustproof window cover, which comprises an outer cover arranged on a handle portion of the angle grinder and the dustproof window cover connected with the outer cover in a sliding mode, the outer cover is provided with a heat dissipation connecting portion, two side walls of the dustproof window cover are connected along two side walls of the heat dissipation connecting portion in a sliding mode, and the dustproof window cover is located on the outer wall of the outer cover. The heat dissipation connecting part is provided with a plurality of air window grooves used for heat dissipation, the dustproof window cover is provided with long-strip-shaped through holes corresponding to the air window grooves in a one-to-one mode, the dustproof window cover is further provided with a dustproof net used for blocking dust, and the dustproof net is arranged at the end, close to the heat dissipation connecting part, of the dustproof window cover. According to the utility model, the outer wall of the outer cover is slidably connected with the dustproof window cover with the dustproof net, so that dust in the air window groove is prevented from being scraped into the outer cover in the pulling process of the dustproof window cover, dust entering the outer cover is reduced, the influence of dust collection of electrical components in the outer cover is reduced, and the service life of the electrical components is prolonged. And the use effect and the service life of the angle grinder are improved.
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Description

Technical Field

[0001] This utility model belongs to the field of power tool technology, specifically relating to an angle grinder with a dustproof window cover. 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. The handle of an angle grinder typically has a groove in the housing to facilitate heat dissipation for the internal electrical components. However, this groove also allows dust to easily enter the housing, affecting the performance and lifespan of the components. To address this issue, existing angle grinders on the market incorporate a removable mesh in the groove to reduce dust ingress. However, this mesh usually slides along the inner wall of the housing, and during insertion and removal, dust can easily be scraped into the housing, further impacting the grinder's performance and lifespan. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an angle grinder with a dustproof window cover, which reduces dust entering the inner part of the cover and ensures the performance and lifespan of the angle grinder.

[0004] To solve the above problems, the present invention adopts the following solution:

[0005] An angle grinder with a dustproof window cover includes an outer cover located on the handle of the angle grinder and a dustproof window cover slidably connected to the outer cover. The outer cover has a heat dissipation connection part, and the two side walls of the dustproof window cover are slidably connected along the two side walls of the heat dissipation connection part. The dustproof window cover is located on the outer wall of the outer cover. The heat dissipation connection part has multiple air vents for heat dissipation. The dustproof window cover has elongated through holes that correspond one-to-one with the air vents. The dustproof window cover also has a dustproof net for blocking dust.

[0006] In the above solution, the dustproof window cover is slidably connected to the heat dissipation connection part of the outer cover. At this time, the dustproof net is placed on multiple air window slots. The heat inside the outer cover is dissipated through the air window slots, long through holes and the small mesh of the dustproof net. At the same time, the dustproof net also blocks most of the dust from entering the outer cover through the air window slots.

[0007] Preferably, the dustproof net is located at one end of the dustproof window cover near the heat dissipation connection.

[0008] During use, dust may accumulate on the dustproof window cover. Pulling out the dustproof window cover may cause the dust on it to fall into the air vent groove. The above-mentioned design ensures that the dust falling from the dustproof window cover will first fall onto the dustproof mesh, further reducing the amount of dust entering the interior of the outer cover.

[0009] Preferably, the dustproof window cover is provided with a latch, which is slidably connected to the window groove.

[0010] In the above configuration, when the dust cover is inserted into the heat dissipation connection, the claw will be placed in the windshield groove and can slide along it, so that the sliding direction of the dust cover is stable, ensuring smooth insertion and removal, and facilitating installation and disassembly.

[0011] Preferably, the outer cover can also be detachably connected to a tail cover, and the tail cover is provided with a clearance groove at the position of the heat dissipation connection part. The clearance groove is connected to the heat dissipation connection part and the outside, and the bottom end face of the clearance groove is lower than the bottom end face of the heat dissipation connection part.

[0012] In the above configuration, the tail cover is used for decoration and reinforcement of the outer cover, and the dustproof window cover slides from the outside along the relief groove to the heat dissipation connection part. The bottom of the relief groove is lower than the bottom of the heat dissipation connection part, so that the clip can slide smoothly into the windshield groove.

[0013] Preferably, the dustproof window cover has two chamfers at one end where it is inserted into the clearance groove.

[0014] The chamfer is designed to facilitate insertion into the clearance slot and improve ease of operation.

[0015] Preferably, the end of the heat dissipation connection away from the outer cover is provided with a fitting angle that fits with the two chamfers.

[0016] The above configuration ensures that when the dustproof cover slides to the bottom of the heat dissipation connection, the outer peripheral wall of the dustproof cover and the inner peripheral wall of the heat dissipation connection can fit completely together, reducing dust from falling into the gap between them.

[0017] Preferably, the dustproof window cover has an anti-slip protrusion at the other end opposite the chamfer.

[0018] Anti-slip protrusions are provided to facilitate the pulling and removing of the dustproof window cover by hand.

[0019] Preferably, there are two heat dissipation connection parts and two dustproof window covers.

[0020] The above settings are to ensure heat dissipation efficiency and dust prevention.

[0021] Preferably, the dustproof net and the dustproof window cover are integrally molded by injection molding.

[0022] The dustproof net and the dustproof window cover are molded as one piece, eliminating the need for the dustproof net installation step and improving production efficiency.

[0023] The beneficial effects of this utility model are as follows:

[0024] This invention utilizes a dustproof window cover with a dustproof mesh that is slidably connected to the outer wall of the outer casing. This prevents dust from being scraped off the wall of the windshield groove and falling into the interior of the outer casing during the removal and removal of the dustproof window cover. As a result, the amount of dust entering the interior of the outer casing is reduced, the impact of dust on the electrical components inside the outer casing is mitigated, and the performance and service life of the angle grinder are improved. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the anti-slip window cover of this utility model when it is installed in the heat dissipation connection part;

[0026] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the dustproof window cover of this utility model;

[0028] Figure 4 This is a schematic diagram of the heat dissipation connection part of the present invention on the outer cover.

[0029] Reference numerals: outer cover 11, left outer cover 111, right outer cover 112, angle grinder body 12, tail cover 13, dustproof window cover 21, heat dissipation connection part 22, clearance through groove 23, wind window groove 31, long through hole 32, dustproof net 40, claw 50, chamfer 61, fitting angle 62, anti-slip protrusion 70. Detailed Implementation

[0030] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0031] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the figures only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0032] This embodiment: Reference Figures 1-4 An angle grinder with a dustproof cover 21 includes an angle grinder body 12 for cutting or grinding, and an outer cover 11 located on the handle of the angle grinder to protect the angle grinder. To facilitate the disassembly and installation of the angle grinder, the outer cover 11 is usually configured as a left outer cover 111 and a right outer cover 112 connected by screws. To further protect the angle grinder, reinforce the left outer cover 111 and the right outer cover 112, and improve the aesthetics, a tail cover 13 is provided at the end of the handle and is detachably connected to the outer cover 11. The electrical components that drive the angle grinder body 12 to cut or grind are located inside the outer cover 11, while the switch button to start the angle grinder is located on the tail cover 13.

[0033] The angle grinder with dustproof window cover 21 also includes a dustproof window cover 21 that is slidably connected to the outer cover 11. The outer cover 11 is provided with a heat dissipation connection part 22. The heat dissipation connection part 22 can be recessed into the outer cover 11 or flush with the outer cover 11. The tail cover 13 is provided with a clearance groove 23 corresponding to the position of the heat dissipation connection part 22. The clearance groove 23 communicates with the heat dissipation connection part 22 and the outside. The dustproof window cover 21 slides into the heat dissipation connection part 22 through the clearance groove 23, and the two side walls of the dustproof window cover 21 are slidably connected along the two side walls of the heat dissipation connection part 22. The above configuration realizes the detachable connection between the dustproof window cover 21 and the angle grinder.

[0034] To achieve both heat dissipation and dust prevention for the angle grinder, the heat dissipation connection 22 has multiple air vents 31 for heat dissipation. The dustproof cover 21 has elongated through holes 32 corresponding to the air vents 31. The dustproof cover 21 also has a dustproof net 40 for blocking dust. The dustproof net 40 has a fine mesh and blocks all the elongated through holes 40. Heat inside the outer cover 11 can be dissipated through the air vents 31, the elongated through holes 32, and the fine mesh of the dustproof net 40. At the same time, the dustproof net 40 can also prevent most dust from entering the outer cover 11 through the air vents 31.

[0035] To prevent dust from being blown into the interior of the outer cover 11 by the windshield groove 31, the heat dissipation connection 22, or other parts of the outer cover 11 during the removal and removal of the dust cover 21, the dust cover 21 is placed on the outside of the outer cover 11.

[0036] Since dust on the dustproof window cover 21 may fall into the outer cover 11 through the air vent 31 during the removal process, the dustproof net 40 is set at the end of the dustproof window cover 21 near the heat dissipation connection part 22, so that the dust falling from the dustproof window cover 21 will first fall onto the dustproof net 40, thereby reducing the amount of dust entering the outer cover 11.

[0037] To ensure stable and smooth sliding of the dustproof window cover 21, the dustproof window cover 21 is equipped with a claw 50, which is slidably connected within the window groove 31, allowing the dustproof window cover 21 to maintain stable sliding direction through the claw 50. The claw 50 can also engage or disengage with the heat dissipation connection part 22 through its own plastic elasticity.

[0038] The bottom end face of the clearance groove 23 is lower than the bottom end face of the heat dissipation connection part 22; so that when the dustproof window cover 21 slides into the heat dissipation connection part 22, the claw 50 can just slide into the wind window groove 31, making the installation and operation convenient.

[0039] To facilitate insertion into the clearance slot 23 and improve operational convenience, the dustproof window cover 21 has two chamfers 61 at one end where it is inserted into the clearance slot 23.

[0040] To avoid a large gap between the dustproof cover 21 and the heat dissipation connection part 22 caused by the chamfer 61, the end of the heat dissipation connection part 22 away from the outer cover 11 is provided with a fitting angle 62 that fits against the two chamfers 61; so that when the dustproof cover 21 slides to the bottom of the heat dissipation connection part 22, the outer peripheral wall of the dustproof cover 21 and the inner peripheral wall of the heat dissipation connection part 22 can fit completely, reducing the amount of dust falling into the gap between them.

[0041] To facilitate the operator's application of force and easy removal of the dustproof window cover 21, the other end of the dustproof window cover 21 opposite the chamfer 61 is provided with an anti-slip protrusion 70.

[0042] To ensure heat dissipation efficiency and dust prevention, two heat dissipation connection parts 22 are provided, respectively located on the left outer cover 111 and the right outer cover 112, and two dustproof window covers 21 are also provided accordingly.

[0043] The dustproof net 40 and the dustproof window cover 21 are integrally formed by injection molding, which avoids the step of installing the dustproof net 40 and improves production efficiency.

[0044] The working process and principle of this utility model:

[0045] Insert the dust cover 21 into the clearance slot 23 of the tail cover 13 and slide it along it. When the dust cover 21 slides to the end of the heat dissipation connection 22, the claw 50 will slide into the windshield slot 31. Continue to slide the dust cover 21 along the heat dissipation connection 22.

[0046] By setting up the dustproof window cover 21 and the dustproof net 40 on it, a portion of the dust falling into the outer cover 11 is reduced. By setting the dustproof window cover 21 on the outside of the outer cover 11, dust from the air vent 31, the heat dissipation connection 22, or other parts of the outer cover 11 is prevented from being blown into the outer cover 11 during the removal and removal of the dustproof window cover 21. Furthermore, by setting the dustproof net 40 at the end of the dustproof window cover 21 near the heat dissipation connection 22, the dust falling from the dustproof window cover 21 will first fall onto the dustproof net 40, further reducing the amount of dust entering the outer cover 11. Therefore, a good dustproof effect is achieved for the angle grinder.

[0047] The above description is merely a specific example of this utility model and does not constitute any limitation on this utility model. Obviously, those skilled in the art, after understanding the content and principle of this utility model, may make various modifications and changes in form and details without departing from the principle and structure of this utility model. However, these modifications and changes based on the concept of this utility model are still within the protection scope of the claims of this utility model.

Claims

1. An angle grinder with a dustproof window cover, characterized in that, The device includes an outer cover (11) located on the handle of an angle grinder and a dustproof window cover (21) slidably connected to the outer cover (11). The outer cover (11) is provided with a heat dissipation connection part (22). The two side walls of the dustproof window cover (21) are slidably connected along the two side walls of the heat dissipation connection part (22), and the dustproof window cover (21) is located on the outer wall of the outer cover (11). The heat dissipation connection part (22) has multiple air vents (31) for heat dissipation. The dustproof window cover (21) is provided with elongated through holes (32) corresponding to the air vents (31). The dustproof window cover (21) is also provided with a dustproof net (40) for blocking dust.

2. The angle grinder with a dustproof window cover according to claim 1, characterized in that, The dustproof net (40) is located at one end of the dustproof window cover (21) near the heat dissipation connection part (22).

3. The angle grinder with a dustproof window cover according to claim 1, characterized in that, The dustproof window cover (21) is provided with a claw (50), which is slidably connected to the window groove (31).

4. The angle grinder with a dustproof window cover according to claim 1, characterized in that, The outer cover (11) can also be detachably connected to a tail cover (13). The tail cover (13) is provided with a clearance groove (23) at the position corresponding to the heat dissipation connection part (22). The clearance groove (23) is connected to the heat dissipation connection part (22) and the outside. The bottom end face of the clearance groove (23) is lower than the bottom end face of the heat dissipation connection part (22).

5. The angle grinder with a dustproof window cover according to claim 4, characterized in that, The dustproof window cover (21) has two chamfers (61) at one end of the insertion relief groove (23).

6. The angle grinder with a dustproof window cover according to claim 5, characterized in that, The heat dissipation connection part (22) has a fitting angle (62) at one end away from the outer cover (11) that fits with the two chamfers (61).

7. The angle grinder with a dustproof window cover according to claim 5, characterized in that, The dustproof window cover (21) has an anti-slip protrusion (70) at the other end of the chamfer (61).

8. The angle grinder with a dustproof window cover according to any one of claims 1-7, characterized in that, Two heat dissipation connection parts (22) are provided, and two dustproof window covers (21) are also provided accordingly.

9. The angle grinder with a dustproof window cover according to claim 1, characterized in that, The dustproof net (40) and the dustproof window cover (21) are integrally formed by injection molding.