Electric power fitting connection stability improving structure

By combining the design of the gear limit plate and the return spring, the nut is restricted to rotating only clockwise, which solves the problem of loose bolts and nuts in power fittings and achieves a stable connection of power fittings.

CN223549624UActive Publication Date: 2025-11-14RUGAO LINDA CIRCUIT FITTING CO LTD
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Patent Information

Application Number
CN202423223299.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-11-14
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

In existing electrical fitting connections, bolts and nuts are prone to loosening after prolonged use, leading to unstable connections.

Method used

The combination of gears and limit plates restricts the nut to rotate only clockwise. Combined with the design of the return spring and transmission plate, it prevents the nut from rotating counterclockwise, ensuring that the bolt and nut are tightened.

Benefits of technology

It effectively prevents bolts and nuts from loosening during use, improves the stability of electrical fitting connections, and ensures long-term reliable operation of equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric power fitting connection stability improving structure, which belongs to the technical field of electric power fitting connection structures and comprises a connection plate body, a bolt is slidably connected in the connection plate body, a nut is in threaded connection with the outer surface of the bolt, and a gear is clamped on the outer side of the nut. A limiting plate is fixedly connected to the right side face of the connecting plate body, the interior of the limiting plate makes contact with the outer surface of the bolt, a rectangular frame is arranged on the left side of the connecting plate body, a rotating shaft is rotationally connected to the inner wall of the rectangular frame, a limiting plate is fixedly connected to the outer surface of the rotating shaft, and the outer surface of the limiting plate makes contact with the outer surface of the gear. According to the electric power fitting connection stability improving structure, the nut is screwed on the bolt and cannot be detached from the bolt by rotating anticlockwise, in addition, the limiting plate can limit the bolt and prevent the bolt from rotating, and therefore the problem that the bolt and the nut are prone to loosening in the using process of equipment can be effectively solved.
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Description

Technical Field

[0001] This application belongs to the technical field of power fitting connection structure, and particularly relates to a structure for improving the stability of power fitting connections. Background Technology

[0002] Power fittings are metal accessories used in power systems to connect and combine various power devices. They serve to transmit mechanical and electrical loads and provide some form of protection. There are many types of power fittings, which can be classified according to their function and structure into suspension clamps, tension clamps, UT clamps, connecting fittings, splicing fittings, protective fittings, equipment clamps, T-clamps, busbar fittings, and guy wire fittings.

[0003] Currently, existing high-voltage lines typically use bolts and nuts to connect with insulators using connecting hardware. However, after the equipment has been used for a period of time, the nuts and bolts may loosen, leading to unstable connections.

[0004] To address this issue, we propose a structure to improve the stability of power fitting connections. Utility Model Content

[0005] The purpose of this application is to solve the problem of loosening of bolts and nuts during long-term use in the prior art, and to propose a structure to improve the stability of power fitting connections.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A structure for improving the stability of power fitting connections includes a connecting plate body. A bolt is slidably connected inside the connecting plate body, and a nut is threaded onto the outer surface of the bolt. A gear is engaged with the outer side of the nut. A limiting plate is fixedly connected to the right side of the connecting plate body, with the interior of the limiting plate contacting the outer surface of the bolt. A rectangular frame is provided on the left side of the connecting plate body. A rotating shaft is rotatably connected to the inner wall of the rectangular frame. A limiting plate is fixedly connected to the outer surface of the rotating shaft, with the outer surface of the limiting plate contacting the outer surface of the gear. A baffle is fixedly connected to the inner wall of the rectangular frame, with the upper surface of the baffle contacting the bottom surface of the limiting plate. A transmission plate is fixedly connected to the outer surface of the rotating shaft. A return spring is fixedly connected to the inner bottom wall of the rectangular frame, and a lifting plate is fixedly connected to the top of the return spring.

[0008] Preferably, a T-shaped groove is provided on the left side of the connecting plate body, and a T-shaped slider is slidably connected inside the T-shaped groove. The left side of the T-shaped slider is fixedly connected to the right side of the rectangular frame.

[0009] Preferably, the upper surface of the connecting plate body has a circular opening, and a limiting shaft is slidably connected inside the circular opening. The outer surface of the limiting shaft is in contact with the back of the T-shaped slider.

[0010] Preferably, a circular plate is fixedly connected to the top end of the limiting shaft, and the bottom surface of the circular plate is in contact with the upper surface of the connecting plate body.

[0011] Preferably, the inner wall of the rectangular frame has two sliding grooves, and each sliding groove has a sliding block slidably connected inside. The two sliding blocks are fixedly connected to the two sides of the lifting plate on their sides with one side close to the other.

[0012] Preferably, the inner wall of the lifting plate is rotatably connected to a roller, and the outer surface of the roller is in contact with the bottom surface of the transmission plate.

[0013] In summary, the technical effects and advantages of this application are as follows:

[0014] By incorporating a gear and utilizing the interlocking relationship between the gear and the nut, the nut and gear can be tightened together onto the bolt surface. The gear teeth contact the surface of the limiting plate, which can rotate around the center of a rotating shaft. Under the limitation of the baffle, the limiting plate can only rotate clockwise and cannot rotate counterclockwise. Therefore, it restricts the gear and nut to rotating only clockwise, ensuring that the nut is tightened onto the bolt and cannot be removed by counterclockwise rotation. In addition, the presence of the limiting plate can also limit the bolt and prevent it from rotating. This effectively avoids the problem of bolts and nuts easily loosening during equipment use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the power fitting connection stability improvement structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the nut of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the rotating shaft of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the reset spring of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the limiting shaft of this utility model.

[0020] In the diagram: 1. Connecting plate body; 2. Circular plate; 3. T-shaped slide groove; 4. Rectangular frame; 5. Limiting plate; 6. Bolt; 7. Nut; 8. Gear; 9. Limiting plate; 10. Circular opening; 11. Rotating shaft; 12. Transmission plate; 13. Limiting shaft; 14. Baffle; 15. T-shaped slider; 16. Roller; 17. Lifting plate; 18. Return spring; 19. Sliding block; 20. Sliding groove. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1-5 A structure for improving the stability of power fitting connections includes a connecting plate body 1. A bolt 6 is slidably connected inside the connecting plate body 1, and a nut 7 is threaded onto the outer surface of the bolt 6. A gear 8 is engaged with the outer side of the nut 7. A limiting plate 9 is fixedly connected to the right side of the connecting plate body 1, with the interior of the limiting plate 9 contacting the outer surface of the bolt 6. A rectangular frame 4 is provided on the left side of the connecting plate body 1, and a T-shaped groove 3 is provided on the left side of the connecting plate body 1. A T-shaped slider 15 is slidably connected inside the T-shaped groove 3, and the left side of the T-shaped slider 15 is fixedly connected to the right side of the rectangular frame 4. By using the sliding relationship between the T-shaped groove 3 and the T-shaped slider 15, the rectangular frame 4 can be pushed and limited, allowing the rectangular frame 4 to operate smoothly on the left side of the connecting plate body 1.

[0023] The inner wall of the rectangular frame 4 is rotatably connected to a rotating shaft 11. A limiting plate 5 is fixedly connected to the outer surface of the rotating shaft 11. A circular opening 10 is provided on the upper surface of the connecting plate body 1. A limiting shaft 13 is slidably connected inside the circular opening 10. The outer surface of the limiting shaft 13 is in contact with the back of the T-shaped slider 15. By providing the circular opening 10 and the limiting shaft 13, the limiting shaft 13 can be moved to the back of the T-shaped slider 15 through the circular opening 10, thereby limiting the T-shaped slider 15 and the rectangular frame 4 and preventing the rectangular frame 4 from moving.

[0024] The outer surface of the limiting plate 5 is in contact with the outer surface of the gear 8. A baffle 14 is fixedly connected to the inner wall of the rectangular frame 4. A circular plate 2 is fixedly connected to the top of the limiting shaft 13. The bottom surface of the circular plate 2 is in contact with the upper surface of the connecting plate body 1. By providing the circular plate 2, the limiting shaft 13 can be easily pulled out, which has a good auxiliary effect.

[0025] The upper surface of the baffle 14 is in contact with the bottom surface of the limiting plate 5. The outer surface of the rotating shaft 11 is fixedly connected to the transmission plate 12. The inner bottom wall of the rectangular frame 4 is fixedly connected to the return spring 18. The top of the return spring 18 is fixedly connected to the lifting plate 17. The inner wall of the rectangular frame 4 has two sliding grooves 20. Each sliding groove 20 has a sliding block 19 slidably connected inside. The two sliding blocks 19 are fixedly connected to the two sides of the lifting plate 17 on their sides. By setting the sliding grooves 20 and the sliding blocks 19, the position of the lifting plate 17 can be limited by the sliding relationship of the sliding blocks 19 inside the sliding grooves 20, so that the lifting plate 17 can only move up and down.

[0026] The inner wall of the lifting plate 17 is rotatably connected to a roller 16. The outer surface of the roller 16 is in contact with the bottom surface of the transmission plate 12. By providing the roller 16, the friction between the lifting plate 17 and the transmission plate 12 can be reduced, thus achieving a better auxiliary effect.

[0027] The working principle of this utility model is as follows: When using this device, first insert the bolt 6 into the interior of the connecting plate body 1, and allow the hexagonal block fixed at one end of the bolt 6 to enter the interior of the limiting plate 9, making them contact each other. This prevents the bolt 6 from rotating. Then, snap the nut 7 into the interior of the gear 8. Utilizing the snapping relationship between the gear 8 and the nut 7, the nut 7, along with the gear 8, can be tightened onto the surface of the bolt 6. The teeth of the gear 8 are in contact with the surface of the limiting plate 5. The limiting plate 5 can rotate around the center of the rotating shaft 11 using the rotating shaft 11. Under the limitation of the baffle 14, the limiting plate 5 can only rotate clockwise and cannot rotate counterclockwise. When the gear 8 rotates clockwise, it pushes the limiting plate 5 to rotate clockwise. Therefore, the rotation of the gear 8 and the nut 7 is restricted to only the clockwise direction, thus tightening the nut 7. On bolt 6, it is impossible to remove nut 7 from bolt 6 by turning counterclockwise. In addition, when the limiting plate 5 drives the rotating shaft 11 to rotate clockwise, the transmission plate 12 fixed on the surface of the rotating shaft 11 will also rotate clockwise, which can push the lifting plate 17 to move downward and squeeze the return spring 18. When one tooth of gear 8 rotates completely out of the range of the limiting plate 5, the return spring 18 will push the lifting plate 17 and the transmission plate 12 to return to their original positions, thereby driving the limiting plate 5 to return to its original position. This ensures that nut 7 and bolt 6 will not rotate again after installation, thus avoiding the problem of bolt 6 and nut 7 easily loosening during the use of the equipment. When the worker needs to remove nut 7, he only needs to pull out the limiting shaft 13 and then pull the rectangular frame 4 to move backward along the T-shaped slide 3 until the limiting plate 5 is no longer in contact with the surface of gear 8.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] 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 structure for improving the stability of power fitting connections, comprising a connecting plate body (1), characterized in that: The connecting plate body (1) is internally slidably connected to a bolt (6), and the outer surface of the bolt (6) is threadedly connected to a nut (7). A gear (8) is engaged on the outer side of the nut (7). A limiting plate (9) is fixedly connected to the right side of the connecting plate body (1). The inside of the limiting plate (9) is in contact with the outer surface of the bolt (6). A rectangular frame (4) is provided on the left side of the connecting plate body (1). A rotating shaft (11) is rotatably connected to the inner wall of the rectangular frame (4). A limiting plate (5) is fixedly connected to the outer surface of the rotating shaft (11). The outer surface of the limiting plate (5) is in contact with the outer surface of the gear (8). A baffle (14) is fixedly connected to the inner wall of the rectangular frame (4). The upper surface of the baffle (14) is in contact with the bottom surface of the limiting plate (5). A transmission plate (12) is fixedly connected to the outer surface of the rotating shaft (11). A return spring (18) is fixedly connected to the inner bottom wall of the rectangular frame (4). A lifting plate (17) is fixedly connected to the top of the return spring (18).

2. The power fitting connection stability improvement structure according to claim 1, characterized in that: The left side of the connecting plate body (1) is provided with a T-shaped groove (3), and a T-shaped slider (15) is slidably connected inside the T-shaped groove (3). The left side of the T-shaped slider (15) is fixedly connected to the right side of the rectangular frame (4).

3. The power fitting connection stability improvement structure according to claim 2, characterized in that: The upper surface of the connecting plate body (1) is provided with a circular opening (10), and a limiting shaft (13) is slidably connected inside the circular opening (10). The outer surface of the limiting shaft (13) is in contact with the back of the T-shaped slider (15).

4. The power fitting connection stability improvement structure according to claim 3, characterized in that: A circular plate (2) is fixedly connected to the top of the limiting shaft (13), and the bottom surface of the circular plate (2) is in contact with the upper surface of the connecting plate body (1).

5. The power fitting connection stability improvement structure according to claim 1, characterized in that: The inner wall of the rectangular frame (4) has two sliding grooves (20), and each sliding groove (20) has a sliding block (19) slidably connected inside. The two sliding blocks (19) are fixedly connected to the two sides of the lifting plate (17) on their side sides.

6. The power fitting connection stability improvement structure according to claim 1, characterized in that: The inner wall of the lifting plate (17) is rotatably connected to a roller (16), and the outer surface of the roller (16) is in contact with the bottom surface of the transmission plate (12).