Self-locking type detachable pin shaft

Abstract

The utility model discloses a self-locking type detachable pin shaft which comprises a connecting base, a shaft hole is formed in the middle shaft position of the front face of the connecting base, one side of the shaft hole is movably connected with a pin shaft tail table, one side of the pin shaft tail table is fixedly connected with round steel, and one side of the pin shaft tail table is in contact with a limiting frame. One side of the limiting frame is fixedly connected with a connecting base, and the bottom of the connecting base is fixedly connected with a fixing plate. The pin shaft tail table is cut off, then the pin shaft tail table is connected with the shaft hole in an inserted mode, then the round steel is rotated, and the round steel drives the pin shaft tail table to rotate, so that the pin shaft tail table makes contact with the limiting frame, installation work is completed, the pin shaft tail table is limited by the limiting frame after installation, and the pin shaft tail table is stable after installation; and meanwhile, the round steel can make contact with the limiting plate in the rotating process, after the limiting plate corresponds to the arc-shaped groove, the limiting plate is driven to move through thrust of the spring, the round steel is limited through the limiting plate, and stability after installation can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of pin technology, specifically a self-locking detachable pin. Background Technology

[0002] Currently, common pin fixing and anti-detachment methods generally involve a screw at the end of the pin, which is fixed and prevented from detaching by a nut and washer, or a hole is drilled at the end of the pin, and a cotter pin is used to fix and prevent detachment by a washer. These methods are complex and require special tools for disassembly, making quick disassembly and installation impossible. Therefore, we propose a self-locking detachable pin. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a self-locking detachable pin shaft, which has the advantages of quick disassembly and installation, no need for any tools, and a robust structure. It solves the problem that current common pin shaft fixing and anti-loosening methods generally involve a screw at the end of the pin shaft for fixing and anti-loosening with a nut and washer, or drilling a hole at the end of the pin shaft and using a cotter pin and washer for fixing and anti-loosening, which are complex structures that require special tools for disassembly and cannot achieve quick disassembly and installation.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a self-locking detachable pin, including a connecting seat, a shaft hole is provided at the central shaft on the front of the connecting seat, a pin tail is movably connected to one side of the shaft hole, a round steel is fixedly connected to one side of the pin tail, one side of the pin tail contacts a limit frame, and one side of the limit frame is fixedly connected to the connecting seat.

[0005] Preferably, a fixing plate is fixedly connected to the bottom of the connecting seat, and springs are fixedly connected to both sides of the front of the fixing plate, with a limit plate fixedly connected to one side of the springs.

[0006] Preferably, the front of the limiting plate is provided with an arc-shaped groove, and the inner cavity of the arc-shaped groove is engaged with the round steel.

[0007] Preferably, a telescopic column is fixedly connected to the central axis on the back of the limiting plate, and one side of the telescopic column is fixedly connected to the fixing plate.

[0008] Preferably, the diameter of the round steel is 20mm.

[0009] Compared with the prior art, this utility model provides a self-locking detachable pin shaft, which has the following characteristics:

[0010] Beneficial effects:

[0011] This invention involves cutting off a piece from the tailstock of a pin, inserting the tailstock into the shaft hole, and then rotating the round steel bar. The round steel bar drives the tailstock of the pin to rotate, causing the tailstock of the pin to contact the limiting frame, thus completing the installation. After installation, the pinstock is limited by the limiting frame, ensuring stability. During the rotation of the round steel bar, it will contact the limiting plate. After the limiting plate aligns with the arc-shaped groove, the spring push will drive the limiting plate to move. By limiting the round steel bar with the limiting plate, the installation can be stabilized. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 3 This is a schematic diagram of the limiting plate structure of this utility model.

[0015] In the diagram: 1. Connecting seat; 2. Shaft hole; 3. Pin tailstock; 4. Round steel; 5. Limiting frame; 6. Fixing plate; 7. Spring; 8. Telescopic column; 9. Limiting plate; 10. Arc groove. 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0018] Example 1:

[0019] Please see Figure 1 and Figure 2 As shown, this utility model provides a self-locking detachable pin, including a connecting seat 1. A shaft hole 2 is provided at the central shaft on the front of the connecting seat 1. A pin tail 3 is movably connected to one side of the shaft hole 2. A round steel 4 is fixedly connected to one side of the pin tail 3. One side of the pin tail 3 contacts a limit frame 5. One side of the limit frame 5 is fixedly connected to the connecting seat 1. The diameter of the round steel 4 is 20mm.

[0020] The specific function of this technical solution is as follows: by cutting off a piece from the tailstock 3 of the pin shaft, inserting the tailstock 3 of the pin shaft into the shaft hole 2, and then rotating the round steel 4, the round steel 4 drives the tailstock 3 of the pin shaft to rotate, thereby making the tailstock 3 of the pin shaft contact the limiting frame 5, thus completing the installation work. Moreover, after installation, it is limited by the limiting frame 5, making the installation stable.

[0021] Example 2:

[0022] Based on Embodiment 1, this utility model is as follows: Figure 1 , Figure 2 and Figure 3 As shown, a fixing plate 6 is fixedly connected to the bottom of the connecting seat 1. Springs 7 are fixedly connected to both sides of the front of the fixing plate 6. A limiting plate 9 is fixedly connected to one side of the springs 7. An arc groove 10 is opened on the front of the limiting plate 9. The inner cavity of the arc groove 10 is engaged with the round steel 4. A telescopic column 8 is fixedly connected to the central axis of the back of the limiting plate 9. One side of the telescopic column 8 is fixedly connected to the fixing plate 6.

[0023] The specific function of this technical solution is as follows: During the rotation of the round steel 4, it will come into contact with the limiting plate 9. After the limiting plate 9 aligns with the arc groove 10, the limiting plate 9 will move due to the thrust of the spring 7. The limiting plate 9 will limit the round steel 4, thus ensuring stability after installation.

[0024] Working principle: A piece is cut off from the tailstock 3 of the pin shaft, and then the tailstock 3 of the pin shaft is inserted into the shaft hole 2. Then, the round steel 4 is rotated, which drives the tailstock 3 of the pin shaft to rotate, so that the tailstock 3 of the pin shaft comes into contact with the limiting frame 5, thereby completing the installation work. Moreover, after installation, it is limited by the limiting frame 5, which makes the installation stable. At the same time, during the rotation of the round steel 4, it will come into contact with the limiting plate 9. After the limiting plate 9 aligns with the arc groove 10, the pushing force of the spring 7 drives the limiting plate 9 to move. The limiting plate 9 limits the round steel 4, which makes the installation stable.

[0025] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0026] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A self-locking detachable pin, comprising a connecting seat (1), characterized in that: The connecting seat (1) has a shaft hole (2) on the central axis of the front side. A pin tailpiece (3) is movably connected to one side of the shaft hole (2). A round steel (4) is fixedly connected to one side of the pin tailpiece (3). One side of the pin tailpiece (3) contacts a limit frame (5). One side of the limit frame (5) is fixedly connected to the connecting seat (1). A fixing plate (6) is fixedly connected to the bottom of the connecting seat (1). Springs (7) are fixedly connected to both sides of the front of the fixing plate (6). A limit plate (9) is fixedly connected to one side of the spring (7). The front of the limiting plate (9) is provided with an arc-shaped groove (10), and the inner cavity of the arc-shaped groove (10) is engaged with the round steel (4).

2. The self-locking detachable pin according to claim 1, characterized in that: A telescopic column (8) is fixedly connected to the central axis on the back of the limiting plate (9), and one side of the telescopic column (8) is fixedly connected to the fixing plate (6).

3. The self-locking detachable pin according to claim 1, characterized in that: The diameter of the round steel (4) is 20 mm.

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