Strain clamp with strengthening structure

Abstract

The utility model relates to a strain clamp with a strengthening structure, and relates to the technical field of electric power fittings, the strain clamp comprises a clamp main body and a locking assembly, the clamp main body comprises a straight section portion and a bending portion, the straight section portion and the bending portion are integrally formed, and the locking assembly is arranged on the straight section portion. The locking assembly comprises a connecting cylinder, a U-shaped locking ring, an anti-loose gasket, a self-locking nut and a pre-tightening spring, the connecting cylinder is arranged on the straight section part, a connecting groove is formed in the connecting cylinder, the U-shaped locking ring penetrates through the connecting groove to be arranged on the connecting cylinder, the U-shaped locking ring comprises a U-shaped part and a linear part, and the anti-loose gasket is arranged on the U-shaped part. The anti-loose gasket is arranged at the end, away from the U-shaped portion, of the linear portion, the self-locking nut is arranged on the linear portion through threads, the pre-tightening spring is arranged on the linear portion, one end of the pre-tightening spring abuts against the anti-loose gasket, and the other end of the pre-tightening spring abuts against the self-locking nut. Therefore, the wire clamp can reinforce the fixation of the wire.

Description

Technical Field

[0001] This application relates to the field of power fittings technology, and in particular to a tension clamp with a reinforced structure. Background Technology

[0002] Tension clamps are devices used in power lines to secure conductors or lightning protection wires. They can withstand the full tension of the conductor and anchor it to tension insulator strings on non-straight towers. Widely used in corner connections, terminal connections, and guy wire fixing, tension clamps with reinforced structures effectively ensure the stability and safety of power lines while reducing construction and maintenance costs.

[0003] Currently, Chinese utility model patent application CN 216564441U, published on May 17, 2022, discloses a tension clamp, including a body, a rotator, and a drain clamp. The rotator includes a body portion and a rotating portion, the body portion being connected to the body. The rotating portion is rotatably mounted on the body portion about a first axis, and the drain clamp is rotatably mounted on the rotating portion about a second axis. The angle between the first axis and the second axis is greater than 0 degrees and less than or equal to 90 degrees. This utility model can avoid excessive bending angles, reduce wear, increase service life, and improve the safety of line operation.

[0004] In related technologies, tension clamps, when the cable is clamped inside the clamp, do not have a special fixing structure to strengthen and fix the cable. When the cable is subjected to external force or is under complex working conditions such as vibration and friction for a long time, it is easy for it to loosen or even fall off. This risk of falling off can not only lead to the interruption of line connection and affect the stability and reliability of signal transmission, but may also cause equipment malfunction.

[0005] Therefore, it is necessary to provide a tension clamp with a reinforced structure to solve the above problems. Utility Model Content

[0006] This application provides a tension clamp with a reinforced structure to improve the technical problem in related technologies where tension clamps lack a reinforced fixing structure for cables, which can easily cause cables to loosen or even fall off, thus leading to equipment malfunctions.

[0007] This application provides a tension clamp with a reinforced structure, including a clamp body and a locking assembly. The clamp body includes a straight section and a bent section, which are integrally formed. The locking assembly includes a connecting cylinder, a U-shaped locking ring, an anti-loosening washer, a self-locking nut, and a preload spring. The connecting cylinder is disposed on the straight section and has a connecting groove. The U-shaped locking ring passes through the connecting groove and is disposed on the connecting cylinder. The U-shaped locking ring includes a U-shaped portion and a straight portion. The anti-loosening washer is disposed on the end of the straight portion away from the U-shaped portion. The self-locking nut is threaded onto the straight portion. The preload spring is disposed on the straight portion, with one end abutting against the anti-loosening washer and the other end abutting against the self-locking nut.

[0008] The technical solution described above in this application embodiment has at least the following technical effects: In the process of fixing the conductor to the tension clamp, firstly, by loosening the U-shaped locking ring and loosening the self-locking nut, the conductor is passed through the U-shaped locking ring and fixed to the tension clamp. After adjustment, by tightening the self-locking nut, the space between the U-shaped locking ring and the clamp body is reduced, so that the U-shaped locking ring abuts against the conductor, thus fixing and locking the conductor. At the same time, in subsequent use, the pre-tensioning spring abuts against the relaxation washer to abut against the self-locking nut, preventing the bolt from loosening due to vibration or long-term use, thereby better fixing the conductor.

[0009] The tension clamp with a reinforced structure provided in this application embodiment can achieve rapid installation, reliable fixation, and long-term anti-loosening of wires through the locking assembly. The opening design of the U-shaped locking ring allows the wire to pass through quickly and be initially fixed, reducing installation time and operation difficulty. By loosening or tightening the self-locking nut, the space between the U-shaped locking ring and the clamp body can be easily adjusted to accommodate wires of different diameters, making it suitable for various wire fixing scenarios that require high reliability and long-term stability.

[0010] In some embodiments, the straight section and the bent section are smoothly connected, a bolt is provided on the side of the bent section near the straight section, a nut is locked on the bolt, and a pin is provided at one end of the bolt.

[0011] In some embodiments, an elastic cushioning sleeve is provided on the straight section.

[0012] In some embodiments, an anti-slip contact strip is provided inside the elastic cushioning pad, and an anti-slip contact point is provided on the end of the anti-slip contact strip away from the elastic cushioning pad.

[0013] In some embodiments, a limit stop is provided on one end of the U-shaped portion near the elastic cushioning sleeve.

[0014] In some embodiments, a reinforcing tube is provided on the side of the bend away from the bolt.

[0015] In some embodiments, the clamp body is made of high-strength aluminum alloy. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a tension clamp with a reinforced structure provided in an embodiment of this application;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the main structure of the locking assembly provided in an embodiment of this application;

[0019] Figure 4 A cross-sectional structural diagram of the elastic buffer sleeve provided in the embodiments of this application;

[0020] The following are the labeling elements in the figure:

[0021] 1. Cable clamp body; 11. Straight section; 12. Bending section; 2. Locking assembly; 21. Connecting cylinder; 22. U-shaped locking ring; 221. U-shaped section; 222. Straight section; 23. Anti-loosening washer; 24. Self-locking nut; 25. Preload spring; 3. Bolt; 31. Nut; 32. Insert pin; 4. Elastic buffer pad sleeve; 5. Anti-slip contact strip; 51. Anti-slip contact point; 6. Limiting block; 7. Reinforcing tube. Detailed Implementation

[0022] Based on this, in order to improve the technical problem in the related technology that the tension clamp lacks a reinforcing and fixing structure for the cable, which makes the cable easy to loosen or even fall off, thereby causing equipment malfunction, the embodiments of this application provide the following solution.

[0023] Please refer to the following: Figures 1 to 4 This application provides a tension clamp with a reinforced structure. The tension clamp with the reinforced structure includes a clamp body 1 and a locking component 2. The clamp body 1 includes a straight section 11 and a bent section 12. The straight section 11 and the bent section 12 are integrally formed, and the locking component 2 is disposed on the straight section 11.

[0024] In some embodiments, please refer to the following: Figures 1 to 3The locking assembly 2 includes a connecting cylinder 21, a U-shaped locking ring 22, an anti-loosening washer 23, a self-locking nut 24, and a preload spring 25. The connecting cylinder 21 is disposed on the straight section 11 and has a connecting groove. The U-shaped locking ring 22 passes through the connecting groove and is disposed on the connecting cylinder 21. The U-shaped locking ring 22 includes a U-shaped part 221 and a straight part 222. The anti-loosening washer 23 is disposed on the end of the straight part 222 away from the U-shaped part 221. The self-locking nut 24 is disposed on the straight part 222 by a thread. The preload spring 25 is disposed on the straight part 222. One end of the preload spring 25 abuts against the anti-loosening washer 23, and the other end of the preload spring 25 abuts against the self-locking nut 24.

[0025] With this setup, during the process of fixing the conductor to the tension clamp, firstly, by loosening the U-shaped locking ring 22 and then loosening the self-locking nut 24, the conductor is passed through the U-shaped locking ring 22 and fixed to the tension clamp. After adjustment, by tightening the self-locking nut 24, the space between the U-shaped locking ring 22 and the clamp body 1 is reduced, so that the U-shaped locking ring 22 abuts against the conductor, thus fixing and locking the conductor. At the same time, during subsequent use, the pre-tensioning spring 25 abuts against the relaxation washer to abut against the self-locking nut 24, preventing the bolt 3 from loosening due to vibration or long-term use, thereby better fixing the conductor. Thus, the open design of the U-shaped locking ring 22 allows the wire to pass through quickly and be initially fixed, reducing installation time and operational difficulty. By loosening or tightening the self-locking nut 24, the space between the U-shaped locking ring 22 and the wire clamp body 1 can be easily adjusted to accommodate wires of different diameters. After tightening the self-locking nut 24, the U-shaped locking ring 22 will tightly abut against the wire, forming a uniform clamping force to ensure that the wire will not slip or fall off. The design of the self-locking nut 24 can effectively prevent the nut 31 from loosening due to vibration or long-term use, ensuring that the locking force is stable and long-lasting. The pre-tensioning spring 25 applies a continuous pre-tensioning force to the self-locking nut 24 by abutting against the relaxation washer. This design, through the combination of the U-shaped locking ring 22, the self-locking nut 24, and the pre-tensioning spring 25, achieves quick installation, reliable fixation, and long-term anti-loosening of the wire, and is suitable for various wire fixing scenarios that require high reliability and long-term stability.

[0026] In some embodiments, please refer to the following: Figures 1 to 4 The straight section 11 and the bent section 12 are smoothly connected. A bolt 3 is provided on the side of the bent section 12 near the straight section 11. A nut 31 is locked on the bolt 3. A pin 32 is provided at one end of the bolt 3. A reinforcing tube 7 is provided on the side of the bent section 12 away from the bolt 3. The main body 1 of the wire clamp is made of high-strength aluminum alloy.

[0027] With this configuration, bolts 3 are installed on the bending section 12 to enhance the tensile strength of the clamp body 1. Simultaneously, bolts 3 also constrain cable movement within the channel. A reinforcing tube 7 is installed outside the bending section 12 to improve its structural strength. The clamp body 1 is made of high-strength aluminum alloy, which has a low density and light weight, facilitating installation and transportation. Aluminum alloy also exhibits excellent corrosion resistance, enabling long-term use in harsh environments such as humidity and acid rain. High-strength aluminum alloy possesses sufficient mechanical strength to withstand conductor tension, while also exhibiting good plasticity and toughness. Furthermore, aluminum alloy has good electrical conductivity, effectively reducing power loss, making it suitable for tension clamps requiring conductivity.

[0028] In some embodiments, please refer to the following: Figures 1 to 4 An elastic buffer pad 4 is provided on the straight section 11. A limit stop 6 is provided on the end of the U-shaped section 221 near the elastic buffer pad 4. An anti-slip contact strip 5 is provided inside the elastic buffer pad 4. An anti-slip contact point 51 is provided on the end of the anti-slip contact strip 5 away from the elastic buffer pad 4.

[0029] With this setup, during the process of fixing the wire with the clamp, the wire first passes through the buffer pad sleeve. During the process of locking the U-shaped locking ring 22, the upper limit stop 6 of the U-shaped part 221 first abuts against the elastic buffer pad sleeve 4 to avoid over-tightening and damage to the wire or clamp. The elastic buffer pad sleeve 4 provides buffer protection for the wire, reducing surface damage to the wire, while increasing the contact area, dispersing stress, and providing anti-slip contact strip 5 and anti-slip electric shock, in order to increase the friction between the wire and the elastic buffer pad sleeve 4. Thus, the elastic buffer sleeve 4 can cushion the conductor, preventing damage to the conductor surface due to excessive tightening. Conductors are typically made of metal, making their surface relatively fragile. Excessive mechanical pressure can cause deformation, scratches, or even breakage. The use of the buffer sleeve effectively reduces this risk and extends the conductor's service life. By increasing the contact area, stress is distributed over a wider area rather than concentrated at a single point. This helps prevent conductor fatigue or damage caused by excessive local stress, especially during long-term operation when conductors are affected by factors such as wind and temperature changes. The stress-dispersing design significantly improves the conductor's fatigue resistance. The anti-slip contact strip 5 and anti-slip contact point 51 increase the friction between the conductor and the buffer sleeve, ensuring that the conductor does not loosen or slip due to vibration, external forces, or other factors during operation. This design is particularly important in high-voltage transmission lines, as loose conductors can lead to line faults or even safety accidents. The upper limit stop is also included in this design. 6. When the U-shaped locking ring 22 is tightened, over-tightening is effectively prevented. Over-tightening can damage the conductor and may also cause structural deformation of the clamp itself, affecting its long-term stability. A reasonable locking mechanism ensures that the clamp performs optimally within a safe range. This design makes the conductor installation process simpler and faster. Construction personnel do not need to worry about over-tightening or conductor damage; they can complete the installation simply by following the standard procedure, greatly improving construction efficiency. Because the conductor and clamp are better protected, malfunctions caused by damage or loosening are reduced, thereby reducing maintenance frequency and costs. At the same time, the elastic design of the buffer sleeve allows the clamp to better adapt to the thermal expansion and contraction of the conductor during operation, reducing maintenance work caused by temperature changes. Through the buffer sleeve and anti-slip design, the contact between the conductor and the clamp is more stable, reducing conductor vibration and sway. This not only improves the mechanical stability of the conductor but also reduces power loss caused by conductor sway, improving power transmission efficiency.

[0030] The implementation principle of a tension clamp with a reinforced structure in this application embodiment is as follows: During the process of fixing the conductor to the tension clamp, the U-shaped locking ring 22 is first loosened, and the self-locking nut 24 is loosened to allow the conductor to pass through the buffer pad sleeve. After adjustment, the space between the U-shaped locking ring 22 and the clamp body 1 is reduced by tightening the self-locking nut 24. The upper limit stop 6 of the U-shaped part 221 first abuts against the elastic buffer pad sleeve 4 to avoid over-tightening and damage to the conductor or clamp. The elastic buffer pad sleeve 4 provides buffer protection for the conductor, reducing surface damage to the conductor, while increasing the contact area, dispersing stress, and providing anti-slip contact strip 5 and anti-slip electric shock. In order to increase the friction between the conductor and the elastic buffer pad sleeve 4, the conductor is fixed and locked. At the same time, in subsequent use, the pre-tightening spring 25 abuts against the loosening pad to abut against the self-locking nut 24 to prevent the bolt 3 from loosening due to vibration or long-term use, thereby better fixing the conductor.

[0031] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tension clamp with a reinforced structure, characterized in that: The device includes a clamp body (1) and a locking assembly (2). The clamp body (1) includes a straight section (11) and a bent section (12), which are integrally formed. The locking assembly (2) includes a connecting cylinder (21), a U-shaped locking ring (22), an anti-loosening washer (23), a self-locking nut (24), and a preload spring (25). The connecting cylinder (21) is disposed on the straight section (11), and a connecting groove is provided on the connecting cylinder (21). The U-shaped locking ring (22) passes through the connecting groove. The U-shaped locking ring (22) is placed on the connecting cylinder (21). It includes a U-shaped part (221) and a straight part (222). The anti-loosening washer (23) is disposed on the end of the straight part (222) away from the U-shaped part (221). The self-locking nut (24) is disposed on the straight part (222) by means of a thread. The preload spring (25) is disposed on the straight part (222). One end of the preload spring (25) abuts against the anti-loosening washer (23), and the other end of the preload spring (25) abuts against the self-locking nut (24).

2. A tension clamp with a reinforced structure according to claim 1, characterized in that: The straight section (11) and the bent section (12) are smoothly connected. A bolt (3) is provided on the side of the bent section (12) near the straight section (11). A nut (31) is locked on the bolt (3). A pin (32) is provided at one end of the bolt (3).

3. A tension clamp with a reinforced structure according to claim 2, characterized in that: An elastic buffer sleeve (4) is provided on the straight section (11).

4. A tension clamp with a reinforced structure according to claim 3, characterized in that: The elastic buffer pad sleeve (4) is provided with an anti-slip contact strip (5), and an anti-slip contact point (51) is provided on the end of the anti-slip contact strip (5) away from the elastic buffer pad sleeve (4).

5. A tension clamp with a reinforced structure according to claim 4, characterized in that: A limit stop (6) is provided on one end of the U-shaped part (221) near the elastic buffer pad sleeve (4).

6. A tension clamp with a reinforced structure according to claim 5, characterized in that: A reinforcing tube (7) is provided on the side of the bent portion (12) away from the bolt (3).

7. A tension clamp with a reinforced structure according to claim 6, characterized in that: The clamp body (1) is made of high-strength aluminum alloy.

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