Standardized cotter pin convenient to install

Abstract

The utility model relates to the technical field of cotter pins and discloses a standard cotter pin convenient to install, which comprises a pin body, a pin head is fixedly connected to the top end of the pin body, a first limiting hole is formed in the front end of the pin body, a second limiting hole is formed in the front end of the pin body, and two fixing blocks are fixedly connected to each of the left end and the right end of the pin body. Rotating shafts are rotatably connected to the opposite ends of the fixing blocks, clamping feet are fixedly connected to the outer walls of the rotating shafts, first connecting blocks are connected to the bottom ends of the clamping feet through rotating assemblies, a sliding groove is formed in the inner wall of the pin body, a spring is connected to the inner wall of the sliding groove through a reset assembly, and the other end of the spring is fixedly connected to the inner wall of the pin body. When the pin needs to be dismantled, only the limiting rod needs to be pulled out, the clamping feet are pushed by hands to be closed to return to the left side and the right side of the pin body, and then the limiting rod is inserted into the second limiting hole, so that the pin body can be dismantled, meanwhile, the pin body does not generate bending which affects the structure of the pin body, and the pin can be repeatedly used.

Description

Technical Field

[0001] The utility model relates to the technical field of split pins, in particular to a standardized split pin which is easy to install. Background Art

[0002] The cotter pin is a common mechanical connection element, mainly used for fastening and fixing connections. After the nut is tightened, the cotter pin is inserted into the nut groove and the hole at the tail of the bolt, and the tail of the cotter pin is opened to prevent relative rotation between the nut and the bolt.

[0003] After searching, the self-locking anti-retraction cotter pin with announcement number CN217713292U includes: a connecting end and a pin body; the connecting end is fixedly connected to the pin body; the pin body includes a first pin body and a second pin body; the first pin body and the second pin body are symmetrically arranged, and the ends of the first pin body and the second pin body away from the connecting end are provided with barbs; the installation of the utility model only requires inserting the pin body into the pin hole, which is more convenient and quicker than ordinary cotter pins, saving time and effort and high work efficiency; the barbs on the pin body have rigidity, and can rebound and open by themselves after passing through the pin hole and clamp the pin hole, and it is difficult for the cotter pin to fall off by itself without human action, so it is safe and reliable to use. The cotter pin does not undergo irreversible bending during use and can be repeatedly installed and disassembled;

[0004] Based on the above patent, the cotter pins mentioned in the background technology are mostly consumable hardware, and the pin body is easily broken after multiple bending and cannot be reused. In response to this technical problem, the present application proposes a standardized cotter pin that is easy to install. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a standardized cotter pin which is easy to install. The cotter pin does not need to be bent by tools when fixing the nut and the bolt, is easy to disassemble and can be reused without damaging the cotter pin.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A standardized cotter pin that is easy to install comprises a pin body, a pin head is fixedly connected to the top of the pin body, a limiting hole 1 is arranged at the front end of the pin body, a limiting hole 2 is arranged at the front end of the pin body, two fixing blocks are fixedly connected to the left and right ends of the pin body, the fixing blocks are rotatably connected to a rotating shaft at one opposite end, a clamping foot is fixedly connected to the outer wall of the rotating shaft, the bottom end of the clamping foot is connected to a connecting block 1 through a rotating component, a sliding groove is arranged on the inner wall of the pin body, and the inner wall of the sliding groove is connected to a spring through a reset component.

[0008] Furthermore, the rotating assembly includes a second connecting block fixedly connected to the bottom end of the clamping foot, the inner wall of the second connecting block is rotatably connected to a connecting frame, and one side of the outer wall of the connecting frame is rotatably connected to the inner wall of the first connecting block.

[0009] Furthermore, the reset assembly comprises a slider slidably connected to the inner wall of the slide groove, a limiting hole three is arranged at the front end of the slider, and one end of the spring is fixedly connected to the top of the slider.

[0010] Furthermore, a limiting rod is provided on the inner wall of the limiting hole 1, and its length can be inserted into the limiting hole 3.

[0011] Furthermore, an inward end of the connection block is fixedly connected to the left and right ends of the slider, and an outer wall of the connection block is slidably connected to the inner wall of the pin body.

[0012] Furthermore, the other end of the spring is fixedly connected to the inner wall of the pin body.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the clamping foot cooperates with the connecting block 1, the connecting frame, the connecting block 2, the spring and the slider, so that the cotter pin does not need to be bent by tools when fixing the nut and the bolt, and is easy to disassemble without damaging the cotter pin and can be used repeatedly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a standardized split pin that is easy to install proposed by the utility model;

[0016] Figure 2 A schematic diagram of the use of a standardized split pin that is easy to install proposed by the utility model;

[0017] Figure 3 A cross-sectional view of a pin body in a standardized cotter pin that is easy to install proposed by the utility model;

[0018] Figure 4 for Figure 2 The enlarged view of point A in the middle;

[0019] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0020] Legend:

[0021] 1. Pin body; 2. Pin head; 3. Clamp foot; 4. Connecting block 1; 5. Limit hole 1; 6. Limit hole 2; 7. Connecting frame; 8. Slide groove; 9. Connecting block 2; 10. Fixed block; 11. Rotating shaft; 12. Spring; 13. Sliding block; 14. Limit hole 3. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-5 The utility model provides an embodiment: a standardized cotter pin that is easy to install, including a pin body 1, a pin head 2 is fixedly connected to the top of the pin body 1, a limiting hole 5 is arranged at the front end of the pin body 1, a limiting rod is arranged on the inner wall of the limiting hole 5, and its length can be inserted into the limiting hole 3 14, a limiting hole 2 6 is arranged at the front end of the pin body 1, two fixing blocks 10 are fixedly connected to the left and right ends of the pin body 1, and the fixing blocks 10 are rotatably connected to the rotating shaft 11 at one end relative to each other, and the outer wall of the rotating shaft 11 is fixedly connected to the clamping foot 3, and the bottom end of the clamping foot 3 is fixed A connecting block 2 9 is fixedly connected, and the inner wall of the connecting block 2 9 is rotatably connected to the connecting frame 7, and one side of the outer wall of the connecting frame 7 is rotatably connected to the connecting block 1 4, and the inner end of the connecting block 1 4 is respectively fixedly connected to the left and right ends of the slider 13, and the outer wall of the connecting block 1 4 is slidably connected to the inner wall of the pin body 1, and the inner wall of the pin body 1 is provided with a slide groove 8, and the inner wall of the slide groove 8 is slidably connected to the slider 13, and the front end of the slider 13 is provided with a limiting hole 3 14, and the top of the slider 13 is fixedly connected to the spring 12, and the other end of the spring 12 is fixedly connected to the inner wall of the pin body 1;

[0024] Specifically, the pin body 1 is inserted into the nut groove and the bolt tail hole, and then the limiting rod inserted in the limiting hole 2 6 and the limiting hole 3 14 is pulled out, so that the slider 13 can slide in the slide groove 8, and then the slider 13 will move upward along the slide groove 8 under the action of the elastic force of the spring 12. At this time, the connecting frame 7 inside the connecting block 1 4 will rotate and lift the clamping foot 3 with the cooperation of the connecting block 2 9 at the bottom of the clamping foot 3, so that the clamping foot 3 is unfolded from both sides of the pin body 1 to form a barrier, fix the bolt and the nut to prevent them from rotating relative to each other, and then insert the limiting rod into the limiting hole 3 14 through the limiting hole 1 5 to re-fix the slider 13. When it needs to be removed, just pull out the limiting rod, push the clamping foot 3 by hand to close it back to the left and right sides of the pin body 1, and then insert the limiting rod into the limiting hole 2 6, so that the pin body 1 can be removed. At the same time, the pin body 1 does not produce any bending that affects its own structure, and can be used repeatedly.

[0025] Working principle: insert the pin body 1 into the nut groove and the bolt tail hole, then pull out the limiting rod inserted in the limiting hole 2 6 and the limiting hole 3 14, so that the slider 13 can slide inside the slide groove 8, and then the slider 13 will move upward along the slide groove 8 under the action of the elastic force of the spring 12. At this time, the connecting frame 7 inside the connecting block 1 4 will rotate and lift the card foot 3 with the cooperation of the connecting block 2 9 at the bottom of the card foot 3, so that the card foot 3 is unfolded from both sides of the pin body 1 to form a barrier, fix the bolt and nut to prevent them from rotating relative to each other, and then insert the limiting rod into the limiting hole 3 14 through the limiting hole 1 5 to re-fix the slider 13. When it needs to be removed, just pull out the limiting rod, push the card foot 3 by hand to close it back to the left and right sides of the pin body 1, and then insert the limiting rod into the limiting hole 2 6, so that the pin body 1 can be removed. At the same time, the pin body 1 does not produce any bending that affects its own structure, and can be used repeatedly.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A standardized split pin that is easy to install, comprising a pin body (1), characterized in that: The top of the pin body (1) is fixedly connected with a pin head (2), the front end of the pin body (1) is provided with a limiting hole (5), the front end of the pin body (1) is provided with a limiting hole (6), the left and right ends of the pin body (1) are fixedly connected with two fixing blocks (10), the opposite ends of the fixing blocks (10) are rotatably connected with a rotating shaft (11), the outer wall of the rotating shaft (11) is fixedly connected with a clamping foot (3), the bottom end of the clamping foot (3) is connected with a connecting block (4) through a rotating component, the inner wall of the pin body (1) is provided with a sliding groove (8), and the inner wall of the sliding groove (8) is connected with a spring (12) through a reset component.

2. A standardized split pin for easy installation according to claim 1, characterized in that: The rotating assembly comprises a second connecting block (9) fixedly connected to the bottom end of the clamping foot (3), the inner wall of the second connecting block (9) is rotatably connected to a connecting frame (7), and one side of the outer wall of the connecting frame (7) is rotatably connected to the inner wall of the first connecting block (4).

3. A standardized split pin for easy installation according to claim 1, characterized in that: The reset assembly comprises a slider (13) slidably connected to the inner wall of the slide groove (8), a limiting hole three (14) is arranged at the front end of the slider (13), and one end of the spring (12) is fixedly connected to the top of the slider (13).

4. A standardized split pin for easy installation according to claim 1, characterized in that: The inner wall of the limiting hole 1 (5) is provided with a limiting rod, the length of which can be inserted into the limiting hole 3 (14).

5. A standardized split pin for easy installation according to claim 2, characterized in that: The inward end of the connection block 1 (4) is fixedly connected to the left and right ends of the slider (13), and the outer wall of the connection block 1 (4) is slidably connected to the inner wall of the pin body (1).

6. A standardized split pin for easy installation according to claim 3, characterized in that: The other end of the spring (12) is fixedly connected to the inner wall of the pin body (1).

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