A quick-tensioning tapered tension clamp

Abstract

This utility model belongs to the field of power fittings, specifically relating to a quick-tensioning conical tension clamp, including a clamp body, a wedge core assembly, and a pull rod assembly. The clamp body has a frustum-shaped hole for placing the wedge core assembly. The wedge core assembly includes a separator and multiple wedge cores, forming a clamping space between the multiple wedge cores for clamping the conductor. A spring is provided between the multiple wedge cores and the outlet of the frustum-shaped hole, and a guide cap is provided inside the inlet of the frustum-shaped hole. By integrating multiple wedge cores onto the separator, the separator ensures that the multiple wedge cores will not be misaligned during installation, ensuring that the multiple wedge cores can be reliably pressed onto the conductor, which helps to improve the reliability of the connection. Installation can be completed simply by passing the conductor through the clamping space between the multiple wedge cores, without the need for auxiliary installation tools, making installation more convenient and enabling quick tensioning and fixing of the conductor with high connection reliability.

Description

Technical Field

[0001] This utility model belongs to the field of power fittings technology, specifically relating to a quick-tensioning tapered tension clamp. Background Technology

[0002] Tension clamps are hardware used to secure conductors, withstand conductor tension, and attach conductors to tension strings or towers.

[0003] Patent No. 202021802880.1 discloses an insulated tension clamp. During installation, the first and second cores need to be removed from the insulation body, then joined to the conductor before being reinserted into the main body. The first and second cores are then pre-tightened with a hammer to complete the installation of the tension clamp and conductor. This installation method has the following drawbacks: First, it requires auxiliary installation tools, which is inconvenient for high-altitude operations, making the installation cumbersome and unable to quickly tighten and fix the conductor. Second, it easily leads to excessive misalignment of the first and second cores, resulting in an unreliable connection between the tension clamp and the conductor. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a fast-tensioning tapered tension clamp that can quickly tighten and fix the conductor, resulting in high connection reliability.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A quick-tensioning tapered tension clamp includes a clamp body, a wedge core assembly, and a pull rod assembly disposed on the clamp body. The clamp body is provided with a frustum-shaped hole for placing the wedge core assembly. The wedge core assembly includes a partition plate slidably disposed in the frustum-shaped hole and multiple wedge cores arranged in a ring array on the partition plate. A clamping space for clamping the wire is formed between the multiple wedge cores. A spring is provided between the multiple wedge cores and the outlet of the frustum-shaped hole. A guide cap is provided in the inlet of the frustum-shaped hole.

[0006] In some embodiments, one end of the guide cap has a groove for inserting a wire, and the other end of the guide cap has a spherical protrusion extending into a frustum-shaped hole. The plurality of wedge cores are respectively provided with a spreading guide arc surface that cooperates with the spherical protrusion at the wire inlet of the clamping space.

[0007] In some embodiments, the inner walls of the plurality of wedge cores are respectively provided with a plurality of anti-detachment teeth that abut against the wires.

[0008] In some embodiments, the plurality of wedge cores are provided with a plurality of snap-fit ​​parts at the outlet of the clamping space, and the separator is provided with a ring array of slots that engage with the plurality of snap-fit ​​parts.

[0009] In some embodiments, the separator is provided with a through hole that communicates with the outlet of the clamping space.

[0010] In some embodiments, one end of the spring abuts against multiple snap-fit ​​portions of a plurality of wedge cores, and the other end of the spring abuts against a limiting surface inside the outlet of the frustoconical hole.

[0011] In some embodiments, the clamp body is provided with a cap that covers the outlet of the frustoconical hole.

[0012] In some embodiments, the pull rod assembly includes a pull ring and a pull rod. The pull ring is provided with a limiting hole through which the clamp body can pass. The clamp body is provided with a protruding ring portion that abuts against one side of the pull ring at the outlet of the truncated cone-shaped hole.

[0013] In some embodiments, the pull rod is U-shaped, and the pull ring is provided with two pull rod grooves through which both ends of the pull rod can pass. The two ends of the pull rod pass through the two pull rod grooves respectively and have a limiting frustum portion that abuts against the other side of the pull ring.

[0014] In some embodiments, an observation hole is provided on the clamp body at the point where the spring abuts against the plurality of wedge cores.

[0015] The beneficial effects of this utility model are as follows: By integrating multiple wedge cores onto a separator, the separator ensures that the multiple wedge cores will not misalign during installation, guaranteeing that they are reliably pressed onto the conductor, thus improving connection reliability. Installation is completed simply by passing the conductor through the clamping space between the multiple wedge cores, without the need for auxiliary installation tools, making installation more convenient. During installation, the conductor is inserted into the groove of the guide cap. The guide cap prevents the conductor tip from unraveling. The spherical protrusion of the guide cap abuts against the spreading guide arc surface of the multiple wedge cores, causing them to be stretched open and move backward simultaneously within the frustum-shaped hole. The separator prevents misalignment during movement. The moving wedge cores compress the spring, and the spring force provides preload. When the clamping space between the multiple wedge cores is expanded to a size greater than the outer diameter of the guide cap, the guide cap passes through the wedge cores, separator, and spring. The conductor is then passed through the outlet of the frustum-shaped hole, completing the installation of the tension clamp and enabling rapid tightening and securing of the conductor. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0017] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0019] Figure 3 This is an exploded view of an embodiment of the present utility model. Detailed Implementation

[0020] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0022] The directional and positional terms used in this utility model, such as up, down, front, back, left, right, inside, outside, top, bottom, side, etc., are only for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0024] like Figure 1-3As shown, a quick-tensioning tapered tension clamp includes a clamp body 1, a wedge core assembly 2, and a pull rod assembly 3 disposed on the clamp body 1. The clamp body 1 has a frustoconical hole 10 for placing the wedge core assembly 2. The wedge core assembly 2 includes a partition plate 21 slidably disposed within the frustoconical hole 10 and multiple wedge cores 22 arranged in a ring array on the partition plate 21. A clamping space 220 for clamping wires is formed between the multiple wedge cores 22. A spring 23 is disposed between the multiple wedge cores 22 and the outlet 11 of the frustoconical hole 10. A guide cap 24 is disposed within the inlet 12 of the frustoconical hole 10. One end of the guide cap 24 has a groove 241 for inserting wires, and the other end of the guide cap 24 has a spherical protrusion 242 extending into the frustoconical hole 10. Each of the multiple wedge cores 22 has a spreading guide arc surface 2211 corresponding to the wire inlet 221 of the clamping space 220, which cooperates with the spherical protrusion 242. The groove of the conductor cap can accommodate the front end of the conductor, preventing the conductor from unraveling. The spherical protrusion of the conductor cap can reliably support multiple wedge cores, thereby improving the installation efficiency of the tension clamp.

[0025] like Figure 2 As shown, multiple anti-detachment teeth 222 are distributed on the inner walls of multiple wedge cores 22, which abut against the conductor. These anti-detachment teeth increase the clamping force of the multiple wedge cores on the conductor, preventing detachment and ensuring a more reliable connection between the tension clamp and the conductor. Multiple locking parts 224 are provided on the multiple wedge cores 22 at the outlet 223 of the clamping space 220, and the separator plate 21 has slots 211 arranged in a ring array to engage with the locking parts 224. The multiple wedge cores and the separator plate are assembled using a locking engagement method, which improves the assembly efficiency of the tension clamp. The separator plate 21 has through holes 212 that communicate with the outlet 223 of the clamping space 220. The through holes of the separator plate allow the conductor to pass through smoothly, further improving the installation efficiency of the tension clamp. One end of the spring 23 abuts against the multiple engaging portions 224 of the multiple wedge cores 22, and the other end of the spring 23 abuts against the limiting surface 13 inside the outlet 11 of the frustoconical hole 10. The spring abuts against the engaging portions and limiting surface of the wedge cores, thereby facilitating the assembly of the spring with the wedge cores and the clamp body. The clamp body 1 is provided with a cover 25 that covers the outlet 11 of the frustoconical hole 10. The cover can prevent foreign objects from entering the clamp body from the outlet, and can prevent the wedge cores from getting stuck or jammed due to foreign objects.

[0026] like Figure 1 and 3As shown, the pull rod assembly 3 includes a pull ring 31 and a pull rod 32. The pull ring 31 has a limiting hole 311 through which the clamp body 1 passes. The clamp body 1 has a protruding ring portion 14 at the outlet 11 corresponding to the frustoconical hole 10, which abuts against one side of the pull ring 31. The pull ring engages with the clamp body, facilitating modular assembly of the pull rod assembly and the clamp body, thereby improving the assembly efficiency of the tension clamp. The pull rod 32 is U-shaped. The pull ring 31 has two pull rod grooves 312 through which both ends of the pull rod 32 pass. Both ends of the pull rod 32 pass through the two pull rod grooves 312 and have a limiting frustoconical portion 321 abutting against the other side of the pull ring 31. The pull rod and the pull ring are assembled by a snap-fit ​​method, which helps to improve the assembly efficiency of the pull rod and the pull ring.

[0027] like Figure 1 As shown, an observation hole 15 is provided on the clamp body 1 at the contact point between the spring 23 and the multiple wedge cores 22. The observation hole on the clamp body allows the installer to observe the connection status between the tension clamp and the conductor, thus facilitating the installer's operation.

[0028] By integrating multiple wedges onto a separator, the separator ensures that the wedges do not misalign during installation, guaranteeing reliable clamping of the wedges onto the conductor and improving connection reliability. Installation is simple; the conductor only needs to be passed through the clamping space between the wedges, eliminating the need for auxiliary tools. During installation, the conductor is inserted into the groove of the guide cap, which prevents the conductor tip from unraveling. The spherical protrusion of the guide cap abuts against the spreading guide arc surface of the wedges, causing them to be stretched open and move backward within the frustum-shaped hole. The separator prevents misalignment during movement. The wedges move and compress the spring, which provides preload. When the clamping space between the wedges is expanded to a size greater than the outer diameter of the guide cap, the guide cap passes through the wedges, separator, and spring. The conductor is then passed through the outlet of the frustum-shaped hole, completing the installation of the tension clamp. This allows for rapid tightening and securing of the conductor.

[0029] The above description is only one embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model; the scope of protection of the present utility model is defined by the claims in the claims, and all equivalent changes and modifications made in accordance with the utility model are within the scope of protection of the present utility model patent.

Claims

1. A quick make-up strain cone, characterized in that: The device includes a wire clamp body, a wedge core assembly, and a pull rod assembly disposed on the wire clamp body. The wire clamp body has a frustoconical hole for placing the wedge core assembly. The wedge core assembly includes a partition plate slidably disposed within the frustoconical hole and multiple wedge cores arranged in a ring array on the partition plate. A clamping space for clamping wires is formed between the multiple wedge cores. A spring is disposed between the multiple wedge cores and the outlet of the frustoconical hole. A guide cap is disposed within the inlet of the frustoconical hole.

2. The quick tighten conical strain clamp of claim 1, wherein: One end of the guide cap has a groove for inserting a wire, and the other end of the guide cap has a spherical protrusion extending into a frustum-shaped hole. The multiple wedge cores are respectively provided with a spreading guide arc surface that cooperates with the spherical protrusion at the wire inlet of the clamping space.

3. The fast-tensioning, conical strain clamp of claim 1 or 2, characterized in that: The inner walls of the multiple wedge cores are respectively distributed with multiple anti-detachment teeth that abut against the wires.

4. The fast-tensioning, conical strain clamp of claim 1 or 2, characterized in that: The multiple wedge cores are provided with multiple locking parts at the outlet of the clamping space, and the separator plate is provided with slots that engage with the multiple locking parts in a ring array.

5. The quick tighten conical strain clamp of claim 4, wherein: The separator is provided with a through hole that communicates with the outlet of the clamping space.

6. The quick tighten conical strain clamp of claim 4, wherein: One end of the spring abuts against multiple snap-fit ​​parts of multiple wedge cores, and the other end of the spring abuts against the limiting surface inside the outlet of the frustum-shaped conical hole.

7. The quick tighten conical strain clamp of claim 1, wherein: The clamp body is provided with a cover that fits into the outlet of the truncated cone-shaped hole.

8. The quick tighten conical strain clamp of claim 1, wherein: The pull rod assembly includes a pull ring and a pull rod. The pull ring is provided with a limiting hole through which the wire clamp body can pass. The wire clamp body is provided with a protruding ring portion that abuts against one side of the pull ring at the outlet of the truncated cone-shaped hole.

9. The quick tighten conical strain clamp of claim 8, wherein: The pull rod is U-shaped, and the pull ring is provided with two pull rod grooves through which the two ends of the pull rod can pass. The two ends of the pull rod pass through the two pull rod grooves respectively and have a limiting frustum portion that abuts against the other side of the pull ring.

10. The quick tighten conical strain clamp of claim 1, wherein: The clamp body has observation holes at the contact points between the spring and the multiple wedge cores.

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