Dual-purpose protective cover for angle grinder

Abstract

The present utility model provides a dual-purpose protective cover for an angle grinder, used for solving the problem of being inconvenient to frequently disassemble and assemble cover plates of existing angle grinders. The dual-purpose protective cover comprises a first protective cover and a connecting part; the first protective cover comprises a semicircular or fan-shaped base and a surrounding edge arranged on the edge of the base, and the surrounding edge extends towards one side of the base at a set length; an arc-shaped notch used for allowing a rotating shaft of an external angle grinder to pass through is further formed in the circle center part of the base; an extending part protruding towards the side away from the surrounding edge is arranged at the notch of the base; the connecting part used for connecting the angle grinder is fixedly arranged on the extending part of the base; the dual-purpose protective cover further comprises a second protective cover; the second protective cover is fixedly arranged on the side of the surrounding edge away from the base; and the second protective cover is in a truncated small circle shape. The present utility model has the following advantages: first, chippings can be effectively prevented from flying away from the side surface of the protective cover; second, the interference of the second protective cover on a material needing angle grinding during angle grinding is reduced, and the operation is convenient; and third, the present solution has simple structure and low costs, and achieves easy industrial processing.

Description

Angle grinder dual-purpose guard Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to a dual-purpose protective cover for an angle grinder. Background Art

[0002] An angle grinder, also known as a grinder or polisher, is a tool primarily used for cutting and polishing materials such as glass and steel. To improve the safety of angle grinders, they are often fitted with a protective shield. Traditional angle grinder shields are typically semicircular, with axially extending baffles along the edges to reduce the possibility of contact with the rotating grinding disc. Due to the limited blocking area of ​​the baffles on traditional shields, chippings easily fly out of the opening on the side of the baffle away from the angle grinder. This increases the difficulty of cleaning the chippings and also presents certain safety risks.

[0003] In order to overcome the above problems, a structure in which a detachable cover plate is provided on the guard has been developed, such as that shown in the patent with publication number CN202556182U and publication number CN114423564A. In the improved guard scheme, the area of ​​the cover plate and the side plate of the main body are almost the same, which can effectively block the debris during the cutting process, and during the grinding process, grinding can also be conveniently performed by removing the cover plate. However, in the improved technical solution, since the cover plate and the side plate of the main body are connected by a detachable structure, there is a problem of connection stability, and frequent disassembly and assembly of the cover plate also causes many inconveniences. Therefore, there is a need for an integrated dual-purpose guard for an angle grinder. Technical issues

[0004] In the above-mentioned improved technical solution, since the cover plate and the side plate of the main body are connected by a detachable structure, there is a problem of connection stability, and frequent disassembly and assembly of the cover plate also causes many inconveniences. Solution

[0005] The purpose of the utility model is to solve the deficiencies of the prior art and provide a dual-purpose protective cover for an angle grinder.

[0006] In order to solve the above problems, the present invention adopts the following solutions:

[0007] A dual-purpose protective cover for an angle grinder comprises a first protective cover and a connecting portion; wherein the first protective cover comprises a semicircular or fan-shaped base and a surrounding edge arranged at the edge of the base, the surrounding edge extending to a set length toward one side of the base; an arc-shaped notch is further provided at the center of the base for passing the rotating shaft of an external angle grinder; an extension portion protruding toward a side away from the surrounding edge is provided at the notch of the base; a connecting portion for connecting to the angle grinder is fixedly provided on the extension portion of the base; and further comprises a second protective cover; the second protective cover is fixedly provided on a side of the surrounding edge away from the base; the second protective cover is in the shape of a small cut circle.

[0008] Furthermore, the edge is provided with an arc edge curved toward the center of the base at one end away from the base.

[0009] Furthermore, the edge of the second shield is provided with an inclined surface corresponding to the arc edge; the inclined surface of the edge of the second shield is provided to fit the outer side surface or the inner side surface of the arc edge.

[0010] Furthermore, the arc edge is connected to the second shield by welding or riveting.

[0011] Furthermore, the second shield is arranged close to the middle area in the length direction of the surrounding edge.

[0012] Furthermore, the connecting portion is a clamp.

[0013] Furthermore, the clamp is fixedly connected to the extension portion by welding. Beneficial effects

[0014] The beneficial effects of the utility model are:

[0015] By providing a smaller, circular second guard on the edge of the first guard, firstly, it can effectively prevent debris from flying from the side of the guard, secondly, it can reduce the interference of the second guard with the material to be angle-grinded during the angle grinding operation, thus facilitating the operation, and thirdly, this solution has a simple structure, low cost, and is easy to process and produce.

[0016] By setting the connecting part as a clamp, the guard can be easily disassembled and assembled with the angle grinder, making it easy to replace or clean the guard;

[0017] By arranging an arc edge that bends toward the center of the base on the surrounding edge, on the one hand, the blocking of debris is enhanced, and on the other hand, it is also convenient to connect the second shield. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is an overall schematic diagram of the second shield attached to the inner side of the arc edge in Example 1;

[0019] FIG2 is an overall schematic diagram of the second shield attached to the outer side of the arc edge in Example 1;

[0020] FIG3 is a schematic diagram of a second protective cover in accordance with Embodiment 1;

[0021] FIG4 is a schematic cross-sectional view taken along line AA of FIG3 ;

[0022] FIG5 is an overall top view of Example 1;

[0023] FIG6 is a schematic cross-sectional view taken along line BB of FIG5 ;

[0024] FIG7 is a partial enlarged view of area a of FIG6 ;

[0025] FIG8 is an overall cross-sectional view of the second shield of Example 1 attached to the inner side of the arc edge.

[0026] Description of the accompanying drawings: first shield 1, base 11, extension portion 111, surrounding edge 12, arc edge 13, connecting portion 2, second shield 3, inclined surface 31. Implementation Method

[0027] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0028] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the figures only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0029] Example 1:

[0030] As shown in Figures 1 to 8, a dual-purpose protective cover for an angle grinder includes a first protective cover 1 and a connecting portion 2; wherein the first protective cover 1 includes a semicircular or fan-shaped base 11 and a surrounding edge 12 arranged at the edge of the base 11, and the surrounding edge 12 extends to a set length to one side of the base 11; the center of the base 11 is also provided with an arc-shaped notch for passing the rotating shaft of the external angle grinder; an extension portion 111 protruding toward the side away from the surrounding edge 12 is provided at the notch of the base 11; a connecting portion 2 for connecting the angle grinder is fixedly provided on the extension portion 111 of the base 11; it also includes a second protective cover 3; the second protective cover 3 is fixedly provided on the side of the surrounding edge 12 away from the base 11; in this example, the second protective cover 3 is in the shape of a small cut circle, wherein the small cut circle is a circle cut into two parts along a straight line, the part with a smaller area is the small cut circle, and the part with a larger area is the large cut circle; the second protective cover 3 corresponds to a part of the base 11.

[0031] The edge 12 is also provided with an arc edge 13 at the end away from the base 11, which is curved toward the center of the base 11. This creates an arc at the edge of the edge 12, thereby enhancing the edge 12's ability to block debris generated during angle grinding or cutting. Furthermore, the arc edge 13 can also be used to connect to the second shield 3. The edge of the second shield 3 is provided with a bevel 31 corresponding to the arc edge 13. The bevel 31 on the edge of the second shield 3 is arranged to fit the outer or inner side of the arc edge 13. In this example, the overlapping length L2 of the bevel 31 on the second shield 3 and the arc edge 13 in FIG7 is 16 mm. The arc edge 13 is welded to the second shield 3. In this example, four welding points are provided between the arc edge 13 and the second shield 3, and the four welding points are distributed at equal angles on the edge 12. When the second shield 3 is in contact with the outer side of the arc edge 13, as shown in FIG6 , the height L1 of the second shield 3 above the arc edge 13 is 5 mm. When the second shield 3 is in contact with the inner side of the arc edge 13, as shown in FIG8 , the height L3 of the second shield 3 above the arc edge 13 is 3.5 mm. It should be noted that in some other embodiments, the surrounding edge 12 and the second shield 3 may also be connected by riveting, threading, or snap fastening.

[0032] The second guard 3 is positioned near the middle region of the longitudinal direction of the edge 12. In this example, the longitudinal direction of the edge 12 is the direction in which the edge of the base 11 extends. Because during actual operation, chips from cutting or angle grinding are mostly directed toward the middle region of the longitudinal direction of the edge 12, positioning the second guard 3 in this middle region can effectively reduce the possibility of chips flying out of the side of the guard, thereby blocking more chips with a smaller area.

[0033] The connecting portion 2 is a clamp, which is located at the outer periphery of the extension portion 111. The extension portion 111 is fixedly connected to the angle grinder by tightening the clamp; the clamp is also fixedly connected to the extension portion 111 by welding; in some other embodiments, the clamp and the extension portion 111 can also be connected by riveting, threading or snapping, or a groove for embedding the clamp is provided on the outside of the extension portion 111 to achieve connection.

[0034] During the implementation process, by setting a smaller, circular second guard 3 on the edge 12 of the first guard 1, it can effectively block debris from flying from the side of the guard, and secondly reduce the interference of the second guard 3 with the material to be angled during the angle grinding operation. In addition, the shape of the first guard is completely consistent with the shape of the existing angle grinder guard, and the second guard can be added on the basis of the existing guard by welding or riveting to reduce costs; by setting the connecting part 2 as a clamp, the guard and the angle grinder can be easily disassembled and assembled, which is convenient for replacing or cleaning the guard; by setting an arc edge 13 bent toward the center of the base 11 on the edge 12, on the one hand, the blocking of debris is enhanced, and on the other hand, it is also convenient to connect the second guard 3.

[0035] The above description is merely a specific example of the present invention and does not constitute any limitation thereto. It is obvious that those skilled in the art, after understanding the content and principles of the present invention, may make various modifications and changes in form and details without departing from the principles and structure of the present invention. However, such modifications and changes based on the concept of the present invention are still within the scope of protection of the claims of the present invention.

Claims

1. A dual-purpose protective cover for an angle grinder, comprising a first protective cover (1) and a connecting portion (2); wherein the first protective cover (1) comprises a semicircular or fan-shaped base (11) and a peripheral edge (12) arranged at the edge of the base (11), the peripheral edge (12) extending to a set length toward one side of the base (11); an arc-shaped notch for passing a rotating shaft of an external angle grinder is also arranged at the center of the base (11); an extension portion (111) protruding toward a side away from the peripheral edge (12) is arranged at the notch of the base (11); a connecting portion (2) for connecting to an angle grinder is fixedly arranged on the extension portion (111) of the base (11); the characteristic is that: It also comprises a second protective cover (3); the second protective cover (3) is fixedly arranged on a side of the surrounding edge (12) away from the base (11); the second protective cover (3) is in the shape of a small cut circle.

2. The dual-purpose protective cover for an angle grinder according to claim 1, characterized in that: The surrounding edge (12) is provided with an arc edge (13) curved towards the center of the base (11) at one end away from the base (11).

3. The dual-purpose protective cover for an angle grinder according to claim 2, characterized in that: The edge of the second protective cover (3) is provided with an inclined surface (31) corresponding to the arc edge (13); the inclined surface (31) of the edge of the second protective cover (3) is arranged to fit the outer side surface or the inner side surface of the arc edge (13).

4. The dual-purpose protective cover for an angle grinder according to claim 3, characterized in that: The arc edge (13) is connected to the second shield (3) by welding or riveting.

5. The dual-purpose protective cover for an angle grinder according to claim 1, characterized in that: The second protective cover (3) is arranged close to the middle area of ​​the surrounding edge (12) in the length direction.

6. The dual-purpose protective cover for an angle grinder according to claim 1, characterized in that: The connecting portion (2) is a clamp.

7. The dual-purpose protective cover for an angle grinder according to claim 6, characterized in that: The clamp is also fixedly connected to the extension portion (111) by welding.

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