Dust cover detachable angle grinder
Patent Information
- Application Number
- CN202522136858.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-10-10
AI Technical Summary
本实用新型通过将外壳以及防尘罩设计呈上宽下窄的结构,从而使得防尘罩在其中一个方向从结构上就能够实现固定效果,在另一个方向通过卡扣和卡块的配合可实现防尘罩的便于拆卸。
Smart Images

Figure CN224751032U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power tool technology, and more specifically, to an angle grinder with a detachable dust cover. Background Technology
[0002] An angle grinder is a portable power tool whose core function is to grind, cut, remove rust, and polish materials such as metal, stone, and concrete using a high-speed rotating grinding or cutting disc. It is widely used in construction and decoration, machinery repair, metal processing, and DIY crafts. It uses series-wound motors or brushless motors as power sources, with transmission via a gear mechanism. The high-speed rotation of the motor drives a fan for cooling. Due to the specific working conditions, iron powder and stone dust raised in the environment are sucked into the machine. These dust particles can penetrate the motor's protective layer at high speed or accumulate, causing short circuits between electrical components and resulting in temporary failure. Therefore, corresponding protective measures have been gradually developed and applied to address the problem of dust ingress.
[0003] The housing of an angle grinder is one of its main components, serving crucial roles in protection and assembly positioning, and is also the primary location for the air inlet. Existing dust covers for angle grinders sometimes use clips to secure them to the air inlet, which inherently reduces the air intake area, leading to insufficient heat dissipation for internal components like the motor. Others use screws for fixing, which has the drawback of stripped screw holes that cannot be reinstalled when the dust cover is removed for cleaning.
[0004] To address the aforementioned issues, there is an urgent need for an angle grinder with a detachable dust cover. Utility Model Content
[0005] The purpose of this invention is to provide an angle grinder with a detachable dust cover to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, a detachable dust cover angle grinder is provided, comprising a housing and a dust cover movably mounted on the housing. The housing has protruding locking blocks and air inlets. The dust cover covers the outside of the housing. To facilitate installation and removal, the dust cover adopts the same design as the housing, with a top opening larger than the bottom opening. During installation, the dust cover is slipped off from the top, and the locking blocks hold the dust cover in place to prevent it from falling off. The dust cover consists of an inner cover and an outer cover, wherein the inner side of the outer cover has a protruding limiting strip for securing the inner cover. The inner cover has air inlets on both sides, and the outer cover has air windows on both sides. The outer cover also has buckles corresponding to the locking blocks.
[0007] Furthermore, the air inlet is located on both sides of the housing, and the air inlet, air hole and air window are in the same position, arranged from the inside to the outside as air inlet, air hole and air window.
[0008] Furthermore, the air inlet includes a plurality of holes or wire mesh arranged in a matrix.
[0009] Furthermore, the inner cover is made of a tough, rigid material, and the outer cover is made of a plastic material.
[0010] Furthermore, the dust cover can adopt a one-piece molded structure, designing the inner cover and the outer cover as a whole.
[0011] Furthermore, the buckle is T-shaped, with one end of its horizontal top portion used for pressing and the other end used for contacting the top of the buckle block, which holds the buckle in place to prevent the protective cover from falling off.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model designs the outer shell and dust cover with a structure that is wider at the top and narrower at the bottom, so that the dust cover can be fixed in one direction, and can be easily disassembled in the other direction through the cooperation of buckles and blocks.
[0013] As an internal heat dissipation structure, the air inlet area on the casing is large enough to ensure sufficient air intake area during operation. As an external heat dissipation structure, the air inlet is composed of several holes arranged in a matrix or made of woven wire mesh. Its dense and fine diameter effectively prevents large dust particles from entering while ensuring sufficient air intake area. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the shell structure in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the shell (without the dust cover) in an embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the dust cover in the embodiment of this utility model; Figure 5 This is a schematic diagram of the outer cover in an embodiment of the present utility model; Figure 6 This is a schematic diagram of the inner cover in an embodiment of the present invention.
[0015] In the picture: 1. Housing; 2. Dust cover; 201. Inner cover; 202. Outer cover; 3. Locking block; 4. Air inlet; 5. Limiting strip; 6. Air inlet hole; 7. Air inlet window; 8. Buckle. Detailed Implementation
[0016] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0017] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.
[0018] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," and "rear," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.
[0019] As used herein, the singular forms “a,” “an,” and “the” include plural objects, and the plural form “multiple” includes two or more objects, unless otherwise expressly indicated. As used herein, the term “or” is generally used to include the meaning of “and / or,” unless otherwise expressly indicated, and the terms “install,” “connect,” and “link” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Connections can be direct or indirect through an intermediate medium, and can be internal communication between two components or an interaction between two components.
[0020] Please see Figures 1-6 As shown, this utility model embodiment provides an angle grinder with a detachable dust cover, including a housing 1 and a dust cover 2 movably mounted on the housing 1. The housing 1 is provided with a protruding locking block 3 and an air inlet 4. The dust cover 2 is wrapped around the outside of the housing 1. In order to facilitate installation and removal, the dust cover 2 adopts the same design as the housing 1, with the top opening being larger than the bottom opening. During installation, the dust cover 2 is put off from the top, and the presence of the locking block 3 can hold the dust cover 2 in place to prevent it from falling off.
[0021] The dust cover 2 consists of an inner cover 201 and an outer cover 202, wherein the inner side of the outer cover 202 is provided with a protruding limiting strip 5 for fixing the inner cover 201.
[0022] The inner cover 201 has air inlets 6 on both sides, the outer cover 202 has air inlets 7 on both sides, and the outer cover 202 has buckles 8 corresponding to the buckle 3.
[0023] It is worth noting that the locking block 3 has an inverted triangular structure, and the buckle 8 is T-shaped. One end of the horizontal part at the top is used for pressing, and the other end is used to contact the top of the locking block 3. When it is necessary to remove the dust cover 2, press one end of the buckle 8 downward, and the buckle 8 bends outward, thereby disengaging from the locking block 3, thus completing the disassembly process.
[0024] like Figure 3 As shown, the air inlet 4 is located on both sides of the housing 1. The air inlet 4, air inlet hole 6 and air inlet window 7 are in the same position. From the inside to the outside, they are air inlet 4, air inlet hole 6 and air inlet window 7. The air inlet hole 6 is composed of several holes arranged in a matrix. Its dense and small diameter can prevent dust from entering while expelling heat. In addition, the air inlet hole 6 can also be composed of a wire mesh woven ventilation structure.
[0025] In this embodiment, the inner cover 201 is made of a tough hard material, and the outer cover 202 is made of plastic material. This not only protects the inner cover 201, but also, since the buckle 8 is integrated into the outer cover 202, it not only meets the strength requirements but also allows the buckle 8 to be bent easily and disassembled.
[0026] In another embodiment of this application, the dust cover 2 may adopt a one-piece molded structure, designing the inner cover 201 and the outer cover 202 as a single unit. In this embodiment, the inner cover 201 may be located on the inner side, outer side, or middle of the outer cover, depending on actual needs.
[0027] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the above specific embodiments. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.
Claims
1. An angle grinder with a detachable dust cover, comprising a housing and a dust cover mounted on the housing, characterized in that: The housing is provided with protruding locking blocks and air inlets, and the dust cover is wrapped around the outside of the housing; The dust cover consists of an inner cover and an outer cover, wherein the inner side of the outer cover is provided with a protruding limiting strip for fixing the inner cover. The inner cover has air inlets on both sides, the outer cover has air windows on both sides, and the outer cover has buckles corresponding to the locking blocks.
2. The angle grinder with a detachable dust cover according to claim 1, characterized in that: The air inlets are located on both sides of the housing. The air inlets, air holes, and air windows are in the same position, arranged from the inside out as air inlets, air holes, and air windows.
3. The angle grinder with a detachable dust cover according to claim 2, characterized in that: The air inlet includes a number of holes or wire mesh arranged in a matrix.
4. The angle grinder with a detachable dust cover according to claim 1, characterized in that: The inner cover is made of a tough, rigid material, and the outer cover is made of plastic.
5. The angle grinder with a detachable dust cover according to claim 1, characterized in that: The dust cover has an opening structure at both the top and bottom, with the diameter of the upper opening being larger than the diameter of the lower opening.
6. The angle grinder with a detachable dust cover according to claim 1, characterized in that: The dust cover is a one-piece molded structure.
7. The angle grinder with a detachable dust cover according to claim 1, characterized in that: The buckle is T-shaped, with one end of its horizontal top portion used for pressing and the other end used for contacting the top of the buckle block. The buckle block holds the buckle in place to prevent the protective cover from falling off.