Bolt compression type wire nose
The innovative mechanical structure design of the bolt-clamping wire lug solves the problem of unstable traditional grounding wire connections, achieving a stable connection of steel strands and improving safety and reliability.
Patent Information
- Application Number
- CN202520566433.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Traditional underground grounding wire connection methods are not stable enough, making the grounding wires prone to falling off, which affects the operation of the power system and the safety of mine workers.
The design incorporates a bolt-pressurized wire lug, which is installed by rotating a fastening nut and a fastening threaded cylinder. Combined with the elastic characteristics of the limiting and resetting components, this achieves a stable connection of the steel strand and prevents loosening.
The installation process has been simplified, ensuring the stability of the steel strands, effectively avoiding the risk of detachment, and improving safety and reliability in use.
Smart Images

Figure CN223942034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamping wire lugs, and more particularly to bolt clamping wire lugs. Background Technology
[0002] In the mining environment, the safe connection of the grounding wire is a key link to ensure the stable operation of the power system and the safety of personnel. In the traditional underground grounding wire connection method, copper wire lugs, as commonly used connection accessories by electricians, undertake the important task of effectively connecting the grounding wire to the power system.
[0003] In the process of connecting grounding wires in underground mines, the traditional method of connecting wire lugs mainly involves using wire clamps to tighten them or using a hammer to strike them. Although these methods can achieve the connection to a certain extent, their stability is obviously insufficient and urgently needs to be improved.
[0004] Therefore, to address the aforementioned problem of inconvenience in preventing wire ends from detaching, a bolt-clamping wire lug can be designed. During use, the clamping wire lug is tightened by rotating the threaded sleeve and the nut. Then, the limiting component is released. Based on the elastic characteristics of the reset component, the limiting component can be reset by adjusting the component. The reset component rotates to the lower end of the nut and fits tightly against its bottom wall, making the connection between the nut and the threaded sleeve more secure and preventing the steel strand from loosening. Utility Model Content
[0005] In order to overcome the problem that bolt-clamped grounding lugs are prone to being pulled out of the lugs during use due to the complexity of the mine environment and the various external forces acting on the grounding wire, which not only affects the normal operation of the power system, but also poses a serious threat to the safety of mine workers, improvements are urgently needed to prevent the wire ends from falling off.
[0006] The technical solution of this utility model is as follows: a bolt-tightening wire lug, including a steel strand, a fastener, a fastening nut, a fastening threaded cylinder, a bending and fixing block, an adjusting component, a resetting component, a limiting component, and a fixing component. The upper end of the steel strand is provided with a fastener, the outside of the fastener is provided with a fastening nut, the outside of the fastening nut is provided with a fastening threaded cylinder, the upper part of the threaded cylinder is provided with an adjusting component, the inside of the adjusting component is provided with a resetting component, the lower end of the adjusting component is provided with a limiting component, the side wall of the fastening threaded cylinder is provided with a bending and fixing block, and one side of the bending and fixing block is provided with a fixing component.
[0007] Preferably, during the use of the clamping lug, firstly, the fastening nut is fitted onto the side wall of the steel strand. Then, the fastening nut is moved to the outside of the upper fastener on the steel strand, and it fits tightly against it. Next, the limiting component is pushed outward to rotate and unfold. At this time, the reset component stores energy. Subsequently, the fastening threaded sleeve and the fastening nut are rotated and tightened to achieve initial tightening. Then, the limiting component is released. Based on the elastic characteristics of the reset component, the limiting component can be reset and rotated by the adjusting component to the lower end of the fastening nut, where it fits tightly against its bottom wall. This makes the connection between the fastening nut and the fastening threaded sleeve more stable, preventing the steel strand from loosening. In summary, this utility model, through innovative mechanical structure design, not only simplifies the installation steps but also ensures the firmness of the steel strand after clamping, effectively avoiding the risk of falling off and improving the safety and reliability of use.
[0008] Preferably, the threaded cylinder is threadedly connected to the fastening nut, the inner wall of the limiting component is in contact with the bottom wall of the fastening nut, and the bent fixing block is in contact with the fixing component.
[0009] Preferably, the adjustment assembly includes a connecting plate, an adjustment hole, and an adjustment shaft. The connecting plate is located above the threaded cylinder, the connecting plate has an adjustment hole inside, and the adjustment shaft is located inside the adjustment hole.
[0010] Preferably, the reset assembly includes a spiral spring, with the spiral spring disposed inside the adjustment hole. One end of the spiral spring is fixedly connected to the upper end of the adjustment shaft, and the other end of the spiral spring is fixedly connected to the inner wall of the adjustment hole.
[0011] Preferably, the limiting assembly includes an adjusting component and an arc-shaped limiting rod. The lower end of the adjusting shaft is provided with an arc-shaped limiting rod, the inner wall of which abuts against the bottom wall of the fastening nut, and the adjusting component is provided on the side wall of the adjusting shaft.
[0012] Preferably, the fixing component includes a fixing threaded post and a fixing seat. The fixing seat is provided on one side of the bent fixing block, and the fixing threaded post is provided on the side wall of the fixing seat. The fixing threaded post is located inside the bent fixing block.
[0013] Preferably, the fixing component also includes a fixing hole and a fixing nut. The fixing hole is provided inside the bent fixing block, the fixing threaded post is provided inside the fixing hole, and the fixing nut is provided on the side wall of the fixing threaded post. The fixing nut is threadedly connected to the fixing threaded post.
[0014] The beneficial effects of this utility model are:
[0015] When using the clamping lug, firstly, the fastening nut is placed on the side wall of the steel strand. Then, the fastening nut is moved to the outside of the upper fastener on the steel strand, and it fits tightly against it. Next, the limiting component is pushed outward to rotate and unfold. At this time, the reset component stores energy. Then, the fastening threaded sleeve and the fastening nut are rotated and tightened to achieve initial tightening. Immediately afterward, the limiting component is released. Based on the elastic characteristics of the reset component, the limiting component can be reset and rotated by the adjusting component to the lower end of the fastening nut, where it fits tightly against its bottom wall. This makes the connection between the fastening nut and the fastening threaded sleeve more stable and prevents the steel strand from loosening. In summary, this utility model, through innovative mechanical structure design, not only simplifies the installation steps but also ensures the firmness of the steel strand after clamping, effectively avoiding the risk of falling off and improving the safety and reliability of use. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the bolt-clamping wire lug of this utility model.
[0017] Figure 2 The diagram shown is a partial three-dimensional structural schematic of the bolt-clamping wire lug of this utility model.
[0018] Figure 3 The diagram shown is a partial three-dimensional structural schematic of the bolt-clamping wire lug of this utility model.
[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the third part of the bolt-clamping wire lug of this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Steel strand; 2. Fastener; 3. Fastening nut; 4. Fastening threaded cylinder; 5. Bending and fixing block; 101. Connecting plate; 102. Adjusting hole; 103. Adjusting shaft; 201. Spiral spring; 301. Adjusting component; 302. Arc-shaped limit rod; 401. Fixing threaded post; 402. Fixing seat; 403. Fixing hole; 404. Fixing nut. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figure 1 and Figure 2This utility model provides an embodiment of a bolt-tightening wire lug, including a steel strand 1, a fastener 2, a fastening nut 3, a fastening threaded cylinder 4, a bending and fixing block 5, an adjusting component, a resetting component, a limiting component, and a fixing component. The upper end of the steel strand 1 is provided with the fastener 2, the outside of the fastener 2 is provided with the fastening nut 3, the outside of the fastening nut 3 is provided with the fastening threaded cylinder 4, the upper part of the fastening threaded cylinder 4 is provided with the adjusting component, the inside of the adjusting component is provided with the resetting component, the lower end of the adjusting component is provided with the limiting component, the side wall of the fastening threaded cylinder 4 is provided with the bending and fixing block 5, and one side of the bending and fixing block 5 is provided with the fixing component.
[0023] Please see Figure 3 and Figure 4 The threaded cylinder 4 is threadedly connected to the fastening nut 3. The inner wall of the limiting component is in contact with the bottom wall of the fastening nut 3. The bent fixing block 5 is in contact with the fixing component. The threaded cylinder 4 and the fastening nut 3 are rotated and tightened to achieve initial tightening. The adjusting component includes a connecting plate 101, an adjusting hole 102, and an adjusting shaft 103. The connecting plate 101 is provided above the threaded cylinder 4. The adjusting hole 102 is provided inside the connecting plate 101. The adjusting shaft 103 is provided inside the adjusting hole 102. The adjusting shaft 103 can be adjusted and rotated through the adjusting hole 102. The reset component includes a spiral spring 201. The spiral spring 201 is provided inside the adjusting hole 102. One end of the spiral spring 201 is fixedly connected to the upper end of the adjusting shaft 103. The other end of the spiral spring 201 is fixedly connected to the inner wall of the adjusting hole 102. According to the elastic characteristics of the spiral spring 201, the adjusting shaft 103 can be driven to achieve reset rotation.
[0024] Please see Figure 1 and Figure 3The limiting component includes an adjusting element 301 and an arc-shaped limiting rod 302. The lower end of the adjusting shaft 103 is provided with the arc-shaped limiting rod 302, and the inner wall of the arc-shaped limiting rod 302 abuts against the bottom wall of the fastening nut 3. The adjusting element 301 is provided on the side wall of the adjusting shaft 103. The arc-shaped limiting rod 302 rotates to the lower end of the fastening nut 3 and fits tightly against its bottom wall, which can make the connection between the fastening nut 3 and the fastening threaded cylinder 4 more stable and prevent the steel strand 1 from loosening. The fixing component includes a fixing threaded post 401 and a fixing seat 402. A fixing seat 402 is provided on one side of the bending fixing block 5, and a fixing threaded post 401 is provided on the side wall of the fixing seat 402. The fixing threaded post 401 is provided on the bending fixing block 5. Inside block 5, one end of the steel strand 1 can be connected via a fixed threaded post 401 and a fixed seat 402. The fixing assembly also includes a fixing hole 403 and a fixing nut 404. The fixing hole 403 is provided inside the bending fixing block 5, and the fixed threaded post 401 is located inside the fixing hole 403. The fixing nut 404 is provided on the side wall of the fixed threaded post 401. The fixing nut 404 is threadedly connected to the fixed threaded post 401. The fixing hole 403 on the bending fixing block 5 is aligned with the fixed threaded post 401 on the fixed seat 402 and inserted. The fixing nut 404 is then rotated to a tight state. This process securely installs the bending fixing block 5 on the fixed seat 402, providing a stable support base for the entire wire lug.
[0025] When using the clamping lug, firstly, the fastening nut 3 is fitted onto the side wall of the steel strand 1. Then, the fastening nut 3 is moved to the outside of the upper fastener 2 of the steel strand 1, and it fits tightly against it.
[0026] Next, by moving the adjusting component 301 outward, the arc-shaped limiting rod 302 can be rotated and unfolded via the adjusting shaft 103. At this time, the spiral spring 201 stores energy. Subsequently, the fastening threaded cylinder 4 and the fastening nut 3 are rotated and tightened to achieve initial tightening.
[0027] Then, the adjusting component 301 is released. Based on the elastic characteristics of the spiral spring 201, the arc-shaped limiting rod 302 can be driven by the adjusting shaft 103 to achieve a reset rotation. Furthermore, when it rotates to the lower end of the fastening nut 3 and fits tightly against its bottom wall, the connection between the fastening nut 3 and the fastening threaded cylinder 4 can be made more secure, preventing the steel strand 1 from loosening.
[0028] Furthermore, by aligning the fixing hole 403 on the bending fixing block 5 with the fixing threaded post 401 on the fixing seat 402 and inserting it, and then rotating the fixing nut 404 to a tight state, the bending fixing block 5 is securely installed on the fixing seat 402, providing a stable support base for the entire wire lug.
[0029] In summary, this utility model, through its innovative mechanical structure design, not only simplifies the installation process but also ensures the firmness of the steel strand 1 after compression, effectively avoiding the risk of detachment and improving safety and reliability in use.
[0030] Through the above steps, when the clamping lug is in use, firstly, the fastening nut 3 is fitted onto the side wall of the steel strand 1. Then, the fastening nut 3 is moved to the outside of the upper fastener 2 of the steel strand 1 and tightly fitted thereto. Next, the limiting component is pushed outward to rotate and unfold. At this time, the reset component stores energy. Subsequently, the fastening threaded cylinder 4 and the fastening nut 3 are rotated and tightened to achieve initial tightening. Then, the limiting component is released. According to the elastic characteristics of the reset component, the limiting component can be reset and rotated by the adjusting component to the lower end of the fastening nut 3 and tightly fitted to its bottom wall. This makes the connection between the fastening nut 3 and the fastening threaded cylinder 4 more stable and prevents the steel strand 1 from loosening. In summary, this utility model, through innovative mechanical structure design, not only simplifies the installation steps but also ensures the firmness of the steel strand 1 after clamping, effectively avoiding the risk of falling off and improving the safety and reliability of use.
[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A bolt-clamped wire lug, comprising steel strand (1), characterized in that: It also includes fasteners (2), fastening nuts (3), fastening threaded cylinders (4), bending fixing blocks (5), adjusting components, resetting components, limiting components and fixing components. Fasteners (2) are provided at the upper end of the steel strand (1), fastening nuts (3) are provided on the outside of the fasteners (2), fastening threaded cylinders (4) are provided on the outside of the fastening nuts (3), adjusting components are provided above the fastening threaded cylinders (4), resetting components are provided inside the adjusting components, limiting components are provided at the lower end of the adjusting components, bending fixing blocks (5) are provided on the side wall of the fastening threaded cylinders (4), and fixing components are provided on one side of the bending fixing blocks (5).
2. The bolt-clamping wire lug according to claim 1, characterized in that: The threaded cylinder (4) is threadedly connected to the fastening nut (3), the inner wall of the limiting component is in contact with the bottom wall of the fastening nut (3), and the bent fixing block (5) is in contact with the fixing component.
3. The bolt-clamping wire lug according to claim 1, characterized in that: The adjustment assembly includes a connecting plate (101), an adjustment hole (102), and an adjustment shaft (103). The connecting plate (101) is provided above the fastening threaded cylinder (4). The connecting plate (101) has an adjustment hole (102) inside, and the adjustment shaft (103) is provided inside the adjustment hole (102).
4. The bolt-clamping wire lug according to claim 3, characterized in that: The reset assembly includes a spiral spring (201), and the spiral spring (201) is disposed inside the adjustment hole (102). One end of the spiral spring (201) is fixedly connected to the upper end of the adjustment shaft (103), and the other end of the spiral spring (201) is fixedly connected to the inner wall of the adjustment hole (102).
5. The bolt-clamping wire lug according to claim 3, characterized in that: The limiting assembly includes an adjusting component (301) and an arc-shaped limiting rod (302). The lower end of the adjusting shaft (103) is provided with an arc-shaped limiting rod (302). The inner wall of the arc-shaped limiting rod (302) abuts against the bottom wall of the fastening nut (3). The adjusting component (301) is provided on the side wall of the adjusting shaft (103).
6. The bolt-clamping wire lug according to claim 3, characterized in that: The fixing component includes a fixing threaded post (401) and a fixing seat (402). The fixing seat (402) is provided on one side of the bent fixing block (5), and the fixing threaded post (401) is provided on the side wall of the fixing seat (402). The fixing threaded post (401) is located inside the bent fixing block (5).
7. The bolt-clamping wire lug according to claim 3, characterized in that: The fixing component also includes a fixing hole (403) and a fixing nut (404). The fixing hole (403) is provided inside the bent fixing block (5). The fixing threaded post (401) is provided inside the fixing hole (403). The fixing nut (404) is provided on the side wall of the fixing threaded post (401). The fixing nut (404) is threadedly connected to the fixing threaded post (401).