Cylindrical pin with anti-loosening limiting structure

Abstract

The utility model relates to the field of cylindrical pin, especially a cylindrical pin with anti -loose limiting structure, including cylindrical pin, the left and right sides of cylindrical pin surface are equipped with the mounting groove, the mounting groove is connected with the limiting block through the spring activity, and the top of cylindrical pin is provided with the moving groove, the moving groove is connected with the moving column in the sliding, and the upper and lower ends of moving column are fixedly installed with fixed column, and the left and right sides of its lower end fixed column are connected with the tow rope one side, the outside of cylindrical pin is provided with the connecting piece, is provided with the pin hole on the connecting piece, the front and back sides of pin hole top are equipped with the locating slot, and the bottom of locating slot is provided with the limiting slot, through setting limiting block, can increase the fastening degree between both in the installation process of cylindrical pin and pin hole, thereby avoiding loose after long -time use, and further enhance the operation stability of machine.

Description

Technical Field

[0001] This utility model relates to the field of cylindrical pin technology, and in particular to a cylindrical pin with an anti-loosening limiting structure. Background Technology

[0002] Cylindrical pins are generally used to connect or lock parts or for assembly positioning, and can also be used as parts for safety devices.

[0003] In the existing cylindrical pin installation process, the cylindrical pin is mainly fastened to the pin hole of the connector by thread to achieve the effect of preventing loosening. However, in long-term use, the vibration generated by the operation of the equipment can cause the cylindrical pin to loosen, which in turn affects the stability of the equipment operation. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cylindrical pin with an anti-loosening limiting structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A cylindrical pin with an anti-loosening limiting structure includes a cylindrical pin, with mounting grooves on the left and right sides of the cylindrical pin surface. A limiting block is movably connected in the mounting groove via a spring. A movable groove is provided at the top of the cylindrical pin, and a movable column is slidably connected in the movable groove. Fixed columns are fixedly installed at the upper and lower ends of the movable column, and a traction rope is connected to one side of the lower fixed column on both the left and right sides.

[0006] A connector is provided on the outside of the cylindrical pin. The connector has a pin hole. Positioning grooves are provided on the front and rear sides of the top of the pin hole, and a limit groove is provided at the bottom of the positioning groove.

[0007] Furthermore, in a preferred configuration, the mounting slots on the left and right sides are connected to the bottom of the movable slot.

[0008] In addition, a preferred structure is that a connecting post is fixedly installed inside the limiting block, and the connecting post is connected to the other side of the traction rope.

[0009] Furthermore, a preferred structure is that the limiting block is an inverted trapezoid, and the size of the bottom end of the limiting block is smaller than the size of the positioning groove.

[0010] Furthermore, in a preferred configuration, the upper end of the movable column and the lower end of the fixed column are in contact with the top of the cylindrical pin.

[0011] In addition, a preferred structure is that a cover plate is provided at the top of the cylindrical pin, and the cover plate is located above the movable column.

[0012] The beneficial effects of this utility model are as follows: by setting a limiting block, the tightness between the cylindrical pin and the pin hole can be increased during the installation process, thereby avoiding loosening after long-term use and improving the operational stability of the machine. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a cylindrical pin with an anti-loosening limiting structure proposed in this utility model; Figure 2 This is a schematic diagram of a cylindrical pin structure with an anti-loosening limiting structure proposed in this utility model; Figure 3 This is a schematic diagram of the connection structure between the movable column and the limiting block of a cylindrical pin with an anti-loosening limiting structure proposed in this utility model. Figure 4 This is a schematic diagram of the moving groove and mounting groove structure of a cylindrical pin with an anti-loosening limiting structure proposed in this utility model. Figure 5 This is a schematic diagram of a connecting component with a cylindrical pin and an anti-loosening limiting structure proposed in this utility model.

[0014] In the diagram: 1. Cylindrical pin; 11. Mounting groove; 12. Spring; 13. Limiting block; 14. Moving groove; 15. Moving column; 16. Fixed column; 17. Traction rope; 18. Connecting column; 19. Cover plate; 2. Connecting piece; 21. Pin hole; 22. Positioning groove; 23. Limiting groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-5 A cylindrical pin with an anti-loosening limiting structure includes a cylindrical pin 1 and a connector 2. The cylindrical pin 1 has mounting grooves 11 on the left and right sides of its surface. A limiting block 13 is movably connected to the mounting groove 11 by a spring 12. The top of the cylindrical pin 1 is provided with a moving groove 14, which is convex in shape. The bottom of the moving groove 14 communicates with the mounting grooves 11 on the left and right sides. A moving column 15 is slidably connected in the moving groove 14. Fixed columns 16 are fixedly installed at the upper and lower ends of the moving column 15. The bottom end of the upper fixed column 16 contacts the top of the cylindrical pin 1. The lower fixed column 16 is connected to one side of a traction rope 17 on the left and right sides. The other side of the traction rope 17 passes through the moving groove 14 and is fixedly connected to the connecting column 18 in the mounting groove 11. The lower fixed column 16 is located in the lower part of the moving groove 14.

[0017] The outer sides of the left and right connecting columns 18 are fixedly connected to the inner sides of the left and right limiting blocks 13. The limiting blocks 13 are inverted trapezoidal, and the outer side of the cylindrical pin 1 is provided with a connector 2. The connector 2 is provided with a pin hole 21. The top of the pin hole 21 is provided with positioning grooves 22 on the front and rear sides. The size of the positioning groove 22 is larger than the bottom size of the limiting block 13. The bottom of the positioning groove 22 is provided with a limiting groove 23. The size of the limiting groove 23 is the same as the size of the limiting block 13. In addition, the top of the cylindrical pin 1 is connected to a cover plate 19 by a thread. The cover plate 19 is located above the moving column 15.

[0018] In this embodiment, during installation, the cylindrical pin 1 is inserted into the pin hole 21 on the connector 2. During the insertion process, the limiting blocks 13 on the front and rear sides of the cylindrical pin 1 are aligned with the positioning grooves 22 on the front and rear sides of the pin hole 21. Through the positioning grooves 22 and the limiting blocks 13, the cylindrical pin 1 and the pin hole 21 on the connector 2 can be placed in a coaxial position during the installation process. The limiting blocks 13 can also be quickly inserted into the limiting grooves 23, avoiding the need to manually align the positions of the limiting blocks 13 and the limiting grooves 23 during the subsequent installation process, thereby improving efficiency.

[0019] During insertion, the bottom ends of the left and right limiting blocks 13 will contact the top end of the connector 2. Since the limiting blocks 13 are inverted trapezoids and the size of the positioning groove 22 is larger than the bottom end size of the limiting blocks 13, the left and right limiting blocks 13 will be forced inward into the mounting groove 11, thereby causing the spring 12 to compress within the mounting groove 11. The limiting blocks 13 will also cause the traction rope 17 to move inward through the connecting post 18. At this time, the traction rope 17 will be deformed by force, but it will not affect the moving post 15 or... When the fixed post 16 has an effect, when the bottom end of the cylindrical pin 1 contacts the bottom end of the pin hole 21, the limiting blocks 13 on the left and right sides will be in a horizontal position with the limiting groove 23. At this time, the spring 12 in the mounting groove 11 will rebound, thereby driving the limiting block 13 and the connecting post 18 to move outward. When the spring 12 has fully rebounded, the limiting block 13 will be limited and fixed in the limiting groove 23. In this way, the cylindrical pin 1 will be limited and fixed together with the connecting piece 2, and then it can be used.

[0020] When disassembling the cylindrical pin 1, simply unscrew the cover plate 19 at the top of the cylindrical pin 1, and then manually pull the moving column 15. The moving column 15 drives the lower fixed column 16 to move upward. The lower fixed column 16 then drives the connecting column 18 to move inward into the mounting groove 11 through the traction ropes 17 on both sides. Subsequently, the connecting column 18 will drive the limiting block 13 to move inward, thereby compressing the spring 12. When the moving column 15 moves upward to the maximum extent, the limiting block 13 will move from the limiting groove 23 into the mounting groove 11. Then, manually pull the cylindrical pin 1 upward, and the cylindrical pin 1 will separate from the connecting piece 2.

[0021] The upper fixed post 16 of the movable post 15 is to prevent the limit block 13 from causing the top of the movable post 15 to move down into the movable groove 14 during the rebound of the spring 12, so that the movable post 15 cannot be operated after the cylindrical pin 1 is removed. In addition, the cover plate 19 on the movable post 15 is to protect the movable post 15 and prevent it from being damaged during use.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cylindrical pin with anti-loosening limiting structure, comprising a cylindrical pin (1), characterized in that, The cylindrical pin (1) has mounting grooves (11) on both sides of its surface. A limit block (13) is movably connected to the mounting groove (11) via a spring (12). The top of the cylindrical pin (1) has a moving groove (14). A moving column (15) is slidably connected to the moving groove (14). Fixed columns (16) are fixedly installed at the upper and lower ends of the moving column (15). The lower fixed column (16) is connected to one side of the traction rope (17) on both sides. A connector (2) is provided on the outside of the cylindrical pin (1). A pin hole (21) is provided on the connector (2). A positioning groove (22) is provided on the front and rear sides of the top of the pin hole (21), and a limit groove (23) is provided at the bottom of the positioning groove (22).

2. The cylindrical pin with anti-loosening and limiting structure according to claim 1, characterized in that, The mounting slots (11) on the left and right sides are connected to the bottom of the moving slots (14).

3. The cylindrical pin with anti-loosening and limiting structure according to claim 1, characterized in that, A connecting column (18) is fixedly installed on the inner side of the limiting block (13), and the connecting column (18) is connected to the other side of the traction rope (17).

4. The cylindrical pin with anti-loosening and limiting structure according to claim 1, characterized in that, The limiting block (13) is an inverted trapezoid, and the size of the bottom end of the limiting block (13) is smaller than the size of the positioning groove (22).

5. The cylindrical pin with anti-loosening and limiting structure according to claim 1, characterized in that, The bottom end of the upper fixed column (16) of the movable column (15) contacts the top end of the cylindrical pin (1).

6. The cylindrical pin with anti-loosening and limiting structure according to claim 1, characterized in that, The top of the cylindrical pin (1) is provided with a cover plate (19).

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