Quick-change grinding wheel cover of angle grinder

Abstract

The utility model relates to an angle grinder quick-change grinding wheel cover, which comprises a protective cover, an elastic limiting mechanism and a head shell mechanism, the protective cover is C-shaped, the head shell mechanism comprises a front cover and a bottom cover, the front cover is fixedly arranged above the bottom cover, the bottom cover is fixedly arranged in an angle grinder head, an assembly part is arranged at the bottom of the protective cover, and the elastic limiting mechanism is arranged on the assembly part. Width limiting rib plates are arranged at the two ends of the assembling part, the front cover is provided with two flat squares matched with the width limiting rib plates, and the assembling part is detachably connected with the front cover; the assembling part is further provided with more than one limiting hole matched with the elastic limiting mechanism, the elastic limiting mechanism is fixedly installed in the bottom cover, and the end portion of the elastic limiting mechanism and the limiting hole are clamped and limited in a matched mode. According to the utility model, rapid assembly and disassembly and position adjustment of the protective cover can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of angle grinders, and particularly relates to a quick-change grinding wheel cover for an angle grinder. Background Art

[0002] An angle grinder is a hand-held tool used to grind and polish metal surfaces. It is often used to repair and polish metal surfaces, such as pipes, pipe joints, valves, metal surface decoration, etc. Angle grinders are efficient, durable, and easy to operate, making them suitable for a variety of metal surface treatment jobs. Angle grinders are usually equipped with different types of grinding wheels, such as those for coarse and fine grinding. It usually uses batteries as a power source, so it is very suitable for working in confined spaces.

[0003] However, when operating an angle grinder, sparks and debris will be emitted, which will cause serious harm to the operator and the surrounding environment. The angle grinder protective cover can wrap the material to be processed, prevent fragments and sparks from flying, and protect the operator's eyes, face, body and hands from injury; it can prevent fragments and sparks from flying, effectively prevent accidents, and protect the environment and equipment in the area; it can not only protect personnel and the environment, but also improve operating efficiency, and avoid interruptions and stops in operations caused by fragments and sparks flying. Therefore, the use of angle grinder protective covers is very common in the market, and users often need to install and remove protective covers and adjust the position of protective covers during use.

[0004] Chinese patent publication number CN217992032U discloses an angle grinder protective cover, including a structural body, the structural body is composed of a front cover plate, a rear cover plate and a top cover plate arranged between the front cover plate and the rear cover plate, the front cover plate, the rear cover plate and the top cover plate are combined to form a cavity structure; the front cover plate is provided with symmetrically distributed grooves, the grooves are provided with first elastic locking parts, "U"-shaped grooves are provided at both ends of the top cover plate, and second elastic locking parts are provided at both ends of the top cover plate. When installing, the angle grinder protective cover is buckled and connected with the metal lower shield of the angle grinder through the first elastic locking parts and the second elastic locking parts to form a fully enclosed protective cover, so as to achieve rapid installation. However, it can be quickly disassembled after installation, but the position of the protective cover cannot be adjusted as required. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a quick-change grinding wheel cover for an angle grinder, which can realize the quick assembly and disassembly and position adjustment of the protective cover.

[0006] The utility model provides a quick-change grinding wheel cover for an angle grinder, which comprises a protective cover, an elastic limiting mechanism, and a head shell mechanism. The protective cover is C-shaped, and the head shell mechanism comprises a front cover and a bottom cover. The front cover is fixedly installed above the bottom cover, and the bottom cover is fixedly installed in the head of the angle grinder. An assembly part is provided at the bottom of the protective cover, and width limiting ribs are provided at both ends of the assembly part. The front cover is provided with two flat squares matching the width limiting ribs, and the assembly part is detachably connected to the front cover; the assembly part is also provided with more than one limiting hole matching the elastic limiting mechanism, and the elastic limiting mechanism is fixedly installed in the bottom cover, and the end portion is adapted to engage with the limiting hole for limiting.

[0007] Preferably, the bottom cover is provided with a limiting groove, and the elastic limiting mechanism includes a quick-change plate buckle, a limiting pin shaft matching the limiting hole, a limiting block and a limiting spring, the limiting block is fixed to the middle part of the limiting pin shaft, the limiting spring is sleeved on the bottom of the limiting pin shaft, and one end is against the limiting block, and the other end is fixedly installed in the limiting groove, one end of the quick-change plate buckle is fixedly installed in the bottom cover, and the quick-change plate buckle is provided with a limiting through hole matching the limiting pin shaft, the top of the limiting pin shaft passes through the limiting through hole and adapts to the limiting hole, and the limiting block is fixedly riveted to the quick-change plate buckle.

[0008] Preferably, the assembly portion is provided with an arc-shaped clamping portion, the front cover is provided with a clamping groove adapted to the arc-shaped clamping portion, and the arc-shaped clamping portion is detachably connected to the clamping groove.

[0009] Preferably, the flat square is composed of a flat surface and an arc surface at the top edge of the flat surface, and the flat surface is a smooth plane.

[0010] Preferably, the assembly portion is provided with nine evenly distributed limiting holes.

[0011] Preferably, one end of the quick-change plate buckle is fixedly installed in the bottom cover by a step screw.

[0012] The utility model has the following technical effects:

[0013] 1. By setting the elastic limiting mechanism to match more than one limiting hole, the corresponding limiting hole can be selected according to different needs, so as to quickly adjust the position of the protective cover. When it needs to be taken out, the elastic limiting mechanism will no longer limit it, which can achieve efficient adjustment and loading and unloading;

[0014] 2. The width limiting rib plate cooperates with the flat square, so that the protective cover can be installed through this unique position, which is more convenient for efficient assembly and use;

[0015] 3. By pressing the unfixed end of the quick-change plate buckle to drive the limit pin to move, the elastic limit mechanism can be tightened and loosened, which is convenient and efficient to operate;

[0016] 4. The arc-shaped clamping part is matched with the clamping slot on the front cover, so that the protective cover moves in the direction of the clamping slot, effectively preventing the occurrence of its dislocation, so that it can only rotate in the circumferential direction, making the adjustment process smoother and more convenient to adjust during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of an exploded view of a quick-change grinding wheel cover for an angle grinder;

[0018] Figure 2 It is an assembly drawing of a quick-change grinding wheel cover for an angle grinder;

[0019] Figure 3 It is an assembly diagram of an elastic limiting mechanism and a head shell mechanism in a quick-change grinding wheel cover of an angle grinder;

[0020] Figure 4 A schematic diagram of the assembly process of a protective cover in a quick-change grinding wheel cover for an angle grinder Figure 1 ;

[0021] Figure 5 A schematic diagram of the assembly process of a protective cover in a quick-change grinding wheel cover for an angle grinder Figure 2 ;

[0022] Figure 6 The utility model is a schematic diagram of the usage status of a quick-change grinding wheel cover of an angle grinder.

[0023] In the figure: 1. Protective cover; 2. Elastic limiting mechanism; 3. Head shell mechanism; 11. Assembly part; 111. Limiting hole; 112. Width limiting rib plate; 113. Arc-shaped clamping part; 21. Quick-change plate buckle; 211. Step screw; 22. Limiting pin; 23. Limiting block; 24. Limiting spring; 31. Bottom cover; 32. Front cover; 311. Limiting groove; 321. Flat square; 322. Clamping slot. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described in detail below with reference to the accompanying drawings.

[0025] In the description of the present invention, it is necessary to understand that the terms "upper", "bottom", "inside" and "outside" 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, rather than indicating or implying 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.

[0026] like Figure 1 , Figure 2 , Figure 3As shown, a quick-change grinding wheel cover for an angle grinder includes a protective cover 1, an elastic limiting mechanism 2, and a head shell mechanism 3. The protective cover 1 is C-shaped, and the head shell mechanism 3 includes a front cover 32 and a bottom cover 31. The front cover 32 is fixedly installed above the bottom cover 31, and the bottom cover 31 is fixedly installed in the head of the angle grinder. An assembly portion 11 is provided at the bottom of the protective cover 1, and width limiting ribs 112 are provided at both ends of the assembly portion 11. The front cover 32 is provided with two flat squares 321 matching the width limiting ribs 112, and the assembly portion 11 is detachably connected to the front cover 32; the assembly portion 11 is also provided with more than one limiting hole 111 matching the elastic limiting mechanism 2, and the elastic limiting mechanism 2 is fixedly installed in the bottom cover 31, and the end portion is adapted to engage with the limiting hole 111 for limiting. By setting the elastic limiting mechanism 2 to fit with more than one limiting hole 111, the corresponding limiting hole 111 can be selected according to different needs, so as to quickly adjust the position of the protective cover 1. When it needs to be taken out, the elastic limiting mechanism 2 will no longer limit it, so that efficient adjustment and loading and unloading can be achieved; by cooperating with the width limiting rib plate 112 and the flat square 321, the protective cover 1 can be installed through this unique position, which is more convenient for efficient assembly and use.

[0027] The bottom cover 31 is provided with a limiting groove 311, and the elastic limiting mechanism 2 includes a quick-change plate buckle 21, a limiting pin 22 matching the limiting hole 111, a limiting block 23 and a limiting spring 24, the limiting block 23 is fixed to the middle of the limiting pin 22, the limiting spring 24 is sleeved on the bottom of the limiting pin 22, and one end is against the limiting block 23, and the other end is fixedly installed in the limiting groove 311, one end of the quick-change plate buckle 21 is fixedly installed in the bottom cover 31, the quick-change plate buckle 21 is provided with a limiting through hole matching the limiting pin 22, the top of the limiting pin 22 passes through the limiting through hole and adapts to the limiting hole 111, and the limiting block 23 is fixedly riveted to the quick-change plate buckle 21. Since one end of the quick-change plate buckle 21 is fixedly installed in the bottom cover 31, the free end of the quick-change plate buckle 21 can be pressed to press the limit block 23 and the limit spring 24 downward, thereby driving the limit pin to move downward, thereby tightening the elastic limit mechanism 2 and causing the limit pin to disengage from the limit hole 111; when the protective cover 1 is rotated to the required position as required, the quick-change plate buckle 21 is released, and the limit pin moves upward to engage with the corresponding limit hole 111 for limit.

[0028] The assembly portion 11 is provided with an arc-shaped clamping portion 113, and the front cover 32 is provided with a clamping groove 322 adapted to the arc-shaped clamping portion 113, and the arc-shaped clamping portion 113 is detachably connected to the clamping groove 322. When the width limiting rib plate 112 cooperates with the flat square 321, so that the protective cover 1 is clamped with the front cover 32 through this unique position, the arc-shaped clamping portion 113 enters the clamping groove 322 for clamping, and the arc-shaped clamping portion 113 matches the clamping groove 322 on the front cover 32, so that the protective cover 1 moves in the direction of the clamping groove 322, effectively preventing the occurrence of its dislocation phenomenon, so that it can only rotate in the circumferential direction, making the adjustment process more stable and more convenient to adjust during use.

[0029] The flat square 321 is composed of a flat surface and an arc surface at the top edge of the flat surface, and the flat surface is a smooth plane.

[0030] The assembly portion 11 is provided with nine evenly distributed limiting holes 111. The corresponding limiting holes 111 can be selected according to different requirements to quickly adjust the position of the protective cover 1.

[0031] One end of the quick-change plate buckle 21 is fixedly installed in the bottom cover 31 by a step screw 211 .

[0032] like Figure 4 , Figure 5 , Figure 6 As shown, a method for using a quick-change grinding wheel cover of an angle grinder comprises the following steps:

[0033] (1) Install the bottom cover 31 into the angle grinder head;

[0034] (2) Install the front cover 32 onto the bottom cover 31, and then install the entire head shell mechanism 3 into the angle grinder head;

[0035] (3) Install the elastic limiting mechanism 2 into the bottom cover 31;

[0036] (4) Fit the width limiting rib plate 112 in the protective cover 1 to the flat square 321 in the front cover 32 and then transfer the plate into the front cover 32;

[0037] (5) During installation, tighten the elastic limiting mechanism 2 (press the unfixed end of the quick-change plate buckle 21, the quick-change plate buckle 21 presses the limiting block 23 downward, the spring is compressed downward, and the limiting pin is lower than the plane of the assembly part 11 of the protective cover 1), and at the same time, the protective cover 1 is rotated circumferentially (the arc-shaped clamping part 113 in the protective cover 1 rotates circumferentially along the clamping groove 322), so that the limiting hole 111 rotates to the position where the elastic limiting mechanism 2 is located, and then relax the elastic limiting mechanism 2 (loosen the quick-change plate buckle 21, the quick-change plate buckle 21 releases the force pressing the limiting block 23, the spring stretches upward, and drives the limiting pin to push upward, and the limiting pin is against the limiting hole 111 at this time), so that the elastic limiting mechanism 2 is against the limiting hole 111, and is engaged with the limiting hole 111 to limit the position, and the installation of the protective cover 1 is completed;

[0038] (6) When adjusting, tighten the elastic limiting mechanism 2 (press the unfixed end of the quick-change plate buckle 21, the quick-change plate buckle 21 presses the limit block 23 downward, the spring is compressed downward, and the limit pin is lower than the plane of the assembly part 11 of the protective cover 1). At the same time, rotate the protective cover 1 as required. When it is rotated to the required position, relax the elastic limiting mechanism 2 (loosen the quick-change plate buckle 21, the quick-change plate buckle 21 releases the force pressing the limit block 23, the spring stretches upward, and drives the limit pin to push upward. At this time, the limit pin abuts against the limit hole 111), so that the elastic limiting mechanism 2 abuts against the limit hole 111 at the required position, and is engaged with the limit hole 111 at the required position, and the position adjustment of the protective cover 1 is completed;

[0039] (7) During disassembly, tighten the elastic limiting mechanism 2 (press the unfixed end of the quick-change plate buckle 21, the quick-change plate buckle 21 presses the limiting block 23 downward, and the spring is compressed downward. At this time, the limiting pin is lower than the plane of the assembly part 11 of the protective cover 1), and at the same time, rotate the protective cover 1 to the corresponding position of the width limiting rib 112 and the flat square 321 of the front cover 32, take out the protective cover 1, and complete the disassembly of the protective cover 1.

[0040] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A quick-change grinding wheel cover for an angle grinder, characterized in that: It includes a protective cover, an elastic limiting mechanism, and a head shell mechanism. The protective cover is C-shaped, and the head shell mechanism includes a front cover and a bottom cover. The front cover is fixedly installed above the bottom cover, and the bottom cover is fixedly installed in the head of the angle grinder. An assembly part is provided at the bottom of the protective cover, and width limiting ribs are provided at both ends of the assembly part. The front cover is provided with two flat squares matching the width limiting ribs, and the assembly part is detachably connected to the front cover; the assembly part is also provided with more than one limiting hole matching the elastic limiting mechanism, and the elastic limiting mechanism is fixedly installed in the bottom cover, and the end is adapted to engage with the limiting hole for limiting.

2. The quick-change grinding wheel cover for an angle grinder according to claim 1, characterized in that: The bottom cover is provided with a limiting groove, and the elastic limiting mechanism includes a quick-change plate buckle, a limiting pin shaft matching the limiting hole, a limiting block and a limiting spring, the limiting block is fixed to the middle part of the limiting pin shaft, the limiting spring is sleeved on the bottom of the limiting pin shaft, and one end is against the limiting block, and the other end is fixedly installed in the limiting groove, one end of the quick-change plate buckle is fixedly installed in the bottom cover, the quick-change plate buckle is provided with a limiting through hole matching the limiting pin shaft, the top of the limiting pin shaft passes through the limiting through hole and adapts to the limiting hole, and the limiting block is fixedly riveted to the quick-change plate buckle.

3. The quick-change grinding wheel cover for an angle grinder according to claim 1, characterized in that: The assembly portion is provided with an arc-shaped clamping portion, and the front cover is provided with a clamping groove adapted to the arc-shaped clamping portion, and the arc-shaped clamping portion is detachably connected to the clamping groove.

4. The quick-change grinding wheel cover for an angle grinder according to claim 1, characterized in that: The flat square is composed of a flat surface and an arc surface at the top edge of the flat surface, and the flat surface is a smooth plane.

5. The quick-change grinding wheel cover for an angle grinder according to claim 1, characterized in that: The assembly portion is provided with nine evenly distributed limiting holes.

6. The quick-change grinding wheel cover for an angle grinder according to claim 2, characterized in that: One end of the quick-change plate buckle is fixedly installed in the bottom cover by a step screw.

Images