Protective cover limiting mechanism of handheld angle grinder

Abstract

The utility model discloses a protective cover limiting mechanism of a handheld angle grinder, and relates to a rotary grinding tool. The utility model relates to the technical field of accessories. The protective cover limiting mechanism of the handheld angle grinder comprises an angle grinder body, the surface of the angle grinder body is fixedly connected with an angle grinder head, the surface of the angle grinder body is slidably sleeved with an angle grinder sliding switch, and the power output end of the angle grinder head is fixedly connected with an angle grinder output shaft. A bearing and a limiting pressing piece are fixedly connected to the surface of the angle grinder output shaft, an angle grinder protective cover is fixedly connected to the surface of the bearing, the limiting structure is arranged on the surface of the angle grinder body and used for adjusting the angle of the protective cover, and the angle of the protective cover can be conveniently adjusted through the structure. And through mutual cooperation of a sliding groove, a spring, a limiting block, a fixing column, a fixing block, a bolt, a power block and a limiting groove, the problems that normal construction is hindered due to the fact that a protective cover is inconvenient to adjust, and an operator is not comprehensively protected can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of a rotary grinding tool and its accessories, in particular to a protective cover limiting mechanism of a handheld angle grinder. Background Art

[0002] Angle grinder, also known as grinding machine or disc grinder, is a kind of grinding tool used for cutting and grinding fiberglass. It is mainly used for cutting, grinding and brushing metal and stone, etc. As a kind of electric tool, the background technology of angle grinder can be traced back to the invention of electric motor in the late nineteenth century. With the continuous maturity of electric motor technology and the improvement of grinding technology, angle grinder technology has also been continuously improved and innovated, becoming a modern industrial production efficient, flexible and reliable grinding tool. In the use of angle grinder, in order to prevent the debris from flying everywhere, angle grinders are generally equipped with protective covers. The protective covers are generally in the shape of semicircular baffle rings. When the debris is blocked, it flies out from the other semicircular direction, thus ensuring the safety of the operator.

[0003] Most of the existing angle grinders are equipped with protective covers, but the protective covers are usually fixed with threads and are not easy to adjust. However, when performing multi-angle cutting operations, the fixed protective covers will hinder normal construction and affect the cutting efficiency. It is also easy to cause some debris to rush towards the operator, and the protection for the operator is not comprehensive enough. Therefore, it is urgent to design a protective cover limit mechanism for a handheld angle grinder that can easily adjust the angle of the protective cover. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a protective cover limiting mechanism for a handheld angle grinder, which can solve the problem that the protective cover is difficult to adjust, hindering normal construction and providing insufficient protection for the operator.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a protective cover limiting mechanism of a handheld angle grinder, comprising an angle grinder body, a surface of the angle grinder body being fixedly connected to an angle grinder head, a surface of the angle grinder body being slidably sleeved with an angle grinder sliding switch, a power output end of the angle grinder head being fixedly connected to an angle grinder output shaft, and further comprising:

[0006] A limiting structure for adjusting the angle of the protective cover is arranged on the surface of the angle grinder body, and the structure can conveniently adjust the angle of the protective cover.

[0007] Preferably, the limiting structure for adjusting the angle of the protective cover includes a movable groove, which is opened on the surface of the angle grinder body, a spring is fixedly connected to the bottom of the movable groove, an end of the spring away from the bottom of the movable groove is fixedly connected to a limiting block, two fixed columns are fixedly connected to the surface of the limiting block, a fixed block is fixedly connected to the surface of the angle grinder body, a bolt is rotatably sleeved on the surface of the fixed block, a power block is bolted to the surface of the fixed block, and a penetrating sliding hole and two sliding grooves are opened on the surface of the power block.

[0008] Preferably, the limit block is slidably connected to the movable groove, and the two fixed columns are slidably connected to the corresponding sliding grooves respectively.

[0009] Preferably, the surface of the angle grinder output shaft is fixedly connected with a bearing and a limiting pressure plate, the surface of the bearing is fixedly connected with an angle grinder protective cover, the surface of the angle grinder protective cover is provided with a plurality of limiting grooves, the surface of the bearing is fixedly connected with an angle grinder grinding wheel, and the surface of the bearing is threadedly connected with a pressure plate nut.

[0010] Preferably, the bearing is in contact with the limiting pressure plate, and the limiting groove is in contact with the limiting block.

[0011] Preferably, the angle grinder grinding wheel is in contact with the limiting pressure plate, and the pressure plate nut is in contact with the angle grinder grinding wheel.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The protective cover limiting mechanism of the handheld angle grinder can effectively solve the problem that the protective cover is difficult to adjust, which hinders normal construction and thus provides insufficient protection for the operator through the mutual cooperation of the sliding groove, spring, limiting block, fixed column, fixed block, bolt, power block and limiting groove, thereby improving practicality, convenience and safety.

[0014] (2) The protective cover limiting mechanism of the handheld angle grinder separates the bearing from the angle grinder grinding wheel through a limiting pressure plate. The limiting pressure plate can effectively prevent the angle grinder grinding wheel from rubbing against the bearing during operation, thereby preventing the bearing from being damaged over a long period of time. This improves the practicality and reduces the failure rate of the angle grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 It is a schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the protective cover of the angle grinder of the utility model;

[0018] Figure 3 This is a schematic diagram of the limit pressing piece of the utility model;

[0019] Figure 4 This is a schematic diagram of the spring of the utility model;

[0020] Figure 5 This is a schematic diagram of the power block of the utility model;

[0021] Figure 6 It is a schematic diagram of the limit block of the utility model.

[0022] Figure numerals: 1. Angle grinder body; 2. Angle grinder head; 3. Angle grinder sliding switch; 4. Angle grinder output shaft; 5. Bearing; 6. Limiting plate; 7. Angle grinder protective cover; 8. Limiting groove; 9. Angle grinder grinding wheel; 10. Pressure plate nut; 11. Moving groove; 12. Spring; 13. Limiting block; 14. Fixed column; 15. Fixed block; 16. Bolt; 17. Power block; 18. Sliding hole; 19. Sliding groove. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] See also Figure 1-Figure 6The utility model provides a technical solution: a protective cover limiting mechanism of a handheld angle grinder, comprising an angle grinder body 1, an angle grinder head 2 is fixedly connected to the surface of the angle grinder body 1, the angle grinder head 2 is used to provide power for the angle grinder, an angle grinder sliding switch 3 is slidably sleeved on the surface of the angle grinder body 1, the angle grinder sliding switch 3 is used to control the start and stop of the angle grinder, and the power output end of the angle grinder head 2 is fixedly connected to the angle grinder output shaft 4, and the power generated inside the angle grinder head 2 is transmitted through the angle grinder output shaft 4, and also includes: a limiting structure for adjusting the angle of the protective cover arranged on the surface of the angle grinder body 1, and the structure can conveniently adjust the angle of the protective cover;

[0028] Wherein, the limiting structure for adjusting the angle of the protective cover includes a moving groove 11, the moving groove 11 is provided on the surface of the angle grinder body 1, a spring 12 is fixedly connected to the bottom of the moving groove 11, one end of the spring 12 away from the bottom of the moving groove 11 is fixedly connected to a limiting block 13, the limiting block 13 is slidably connected to the moving groove 11, the surface of the limiting block 13 is fixedly connected to two fixing columns 14, the surface of the angle grinder body 1 is fixedly connected to a fixing block 15, the surface of the fixing block 15 is rotatably sleeved with a bolt 16, the surface of the fixing block 15 is bolted to a power block 17, the surface of the power block 17 is provided with a penetrating sliding hole 18 and two sliding grooves 19, and the two fixing columns 14 are slidably connected to the corresponding sliding grooves 19 respectively;

[0029] Among them, the surface of the angle grinder output shaft 4 is fixedly connected with a bearing 5 and a limiting pressure plate 6, the bearing 5 is in contact with the limiting pressure plate 6, the surface of the bearing 5 is fixedly connected with an angle grinder protective cover 7, the surface of the angle grinder protective cover 7 is provided with a plurality of limiting grooves 8, the limiting grooves 8 are in contact with the limiting blocks 13, thereby playing a limiting role, the surface of the bearing 5 is fixedly connected with an angle grinder grinding wheel 9, the angle grinder grinding wheel 9 is in contact with the limiting pressure plate 6, the surface of the bearing 5 is threadedly connected with a pressure plate nut 10, the pressure plate nut 10 is in contact with the angle grinder grinding wheel 9, thereby achieving the fixation of the grinding wheel and ensuring the safety of the user.

[0030] Working principle: When the angle of the protective cover needs to be adjusted for multi-angle cutting operations, the staff presses the power block 17, and the power block 17 drives the limit block 13 to move downward through the fixed column 14, so that the limit block 13 is separated from the limit groove 8, and then the staff rotates the protective cover to a suitable angle, and finally releases the power block 17 to make the limit block 13 cooperate with the appropriate limit groove 8. This method can be repeated to adjust the protective cover to different angles.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A protective cover limiting mechanism for a handheld angle grinder, comprising an angle grinder body (1), a surface of the angle grinder body (1) being fixedly connected to an angle grinder head (2), a surface of the angle grinder body (1) being slidably sleeved with an angle grinder sliding switch (3), and a power output end of the angle grinder head (2) being fixedly connected to an angle grinder output shaft (4), characterized in that: Also includes: A limiting structure for adjusting the angle of the protective cover is arranged on the surface of the angle grinder body (1), and the structure can conveniently adjust the angle of the protective cover.

2. The protective cover limiting mechanism of a handheld angle grinder according to claim 1, characterized in that: The limiting structure for adjusting the angle of the protective cover comprises a movable groove (11), the movable groove (11) is provided on the surface of the angle grinder body (1), a spring (12) is fixedly connected to the bottom of the movable groove (11), one end of the spring (12) away from the bottom of the movable groove (11) is fixedly connected to a limiting block (13), the surface of the limiting block (13) is fixedly connected to two fixing columns (14), the surface of the angle grinder body (1) is fixedly connected to a fixing block (15), the surface of the fixing block (15) is rotatably sleeved with a bolt (16), the surface of the fixing block (15) is bolted to a power block (17), and the surface of the power block (17) is provided with a penetrating sliding hole (18) and two sliding grooves (19).

3. The protective cover limiting mechanism of a handheld angle grinder according to claim 2 is characterized in that: The limit block (13) is slidably connected to the movable groove (11), and the two fixed columns (14) are slidably connected to the corresponding sliding grooves (19) respectively.

4. The protective cover limiting mechanism of a handheld angle grinder according to claim 1, characterized in that: The surface of the angle grinder output shaft (4) is fixedly connected with a bearing (5) and a limiting pressure plate (6); the surface of the bearing (5) is fixedly connected with an angle grinder protective cover (7); the surface of the angle grinder protective cover (7) is provided with a plurality of limiting grooves (8); the surface of the bearing (5) is fixedly connected with an angle grinder grinding wheel (9); and the surface of the bearing (5) is threadedly connected with a pressure plate nut (10).

5. The protective cover limiting mechanism of a handheld angle grinder according to claim 4, characterized in that: The bearing (5) is in contact with the limiting pressure sheet (6), and the limiting groove (8) is in contact with the limiting block (13).

6. The protective cover limiting mechanism of a handheld angle grinder according to claim 4, characterized in that: The angle grinder grinding wheel (9) is in contact with the limiting pressure plate (6), and the pressure plate nut (10) is in contact with the angle grinder grinding wheel (9).

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