Pre-twisted strain clamp for power transmission and distribution line

Abstract

The utility model relates to the technical field of strain clamp devices, in particular to a pre-twisted strain clamp for a power transmission and distribution line, which comprises a clamp, an inner groove is arranged in the middle of the bottom end of the clamp, a hooking plate is fixed on the outer side of the inner groove, and the outer side walls of two ends of the hooking plate and the inner groove are trumpet-shaped with one large side and one small side. The inner groove is internally provided with two groups of clamping blocks, the bottom ends of the clamping blocks are symmetrically and fixedly provided with two groups of hooking blocks, the tail ends of the hooking blocks are kept in contact with the outer side wall of the hooking plate, by arranging the cable clamp structure with the hooking plate, when a user places the two groups of clamping blocks in the inner groove, a cable can penetrate through the space between the two groups of clamping blocks, and when the clamping blocks are driven by external force to move, the cable can be clamped by the hooking plate. When the wire clamp is in use, the clamping blocks can be gradually tightened through the horn-shaped structure characteristic that one end is large and the other end is small, the hooking blocks at the bottom ends of the clamping blocks can make contact with the hooking plates to form a friction pair structure, the function of assisting in weakening movement can be achieved, and the function of reinforcing the structural strength of the wire clamp can be achieved through the external reinforcing rib structure.

Description

Technical Field

[0001] This utility model relates to the technical field of tension clamp devices, specifically to a pre-stretched tension clamp for power transmission and distribution lines. Background Technology

[0002] For coastal areas, salt spray corrosion severely affects the safe operation of power transmission and distribution lines, shortens their service life, and increases maintenance workload. Therefore, our county has set high requirements for salt spray corrosion prevention of power transmission and distribution lines during the design process of rural and urban power grid renovation. From design to construction and line maintenance, strengthening and improving the safe and reliable operation of power transmission and distribution lines and reducing the accident rate are related to the safety, stability, and reliability of the power grid, as well as the development of the social economy and the economic benefits of power companies.

[0003] The positioning of the tension clamps used in power transmission and distribution lines is very unstable. An overly strong positioning structure can easily lead to excessive stiffness of the pre-stranded tension clamp, causing damage when subjected to strong forces. At the same time, when positioning the pre-stranded sheath, the positioning wheel on the pre-stranded tension clamp cannot properly position and tension the pre-stranded sheath. Utility Model Content

[0004] Technical problems to be solved

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a pre-twisted tension clamp for power transmission and distribution lines, which can effectively solve the problem that the excessively strong positioning structure in the existing technology can easily lead to excessive stiffness of the pre-twisted tension clamp and damage when subjected to strong forces.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides a pre-stretched tension clamp for power transmission and distribution lines, including a clamp with an inner groove in the middle of the bottom end of the clamp. A hook plate is fixed to the outer side of the inner groove. The outer walls of both ends of the hook plate and the inner groove are flared, with one side larger and the other side smaller. Two sets of clamping blocks are provided in the inner groove. Two sets of hooking blocks are symmetrically fixed to the bottom end of the clamping blocks. The ends of the hooking blocks are in contact with the outer walls of the hook plate.

[0009] Furthermore, a circular groove is provided in the middle of the clamping block, and the circular groove is funnel-shaped with one end larger and the other end smaller.

[0010] Furthermore, the hook block is provided with two sets of hook claw structures, and the hook block is a trapezoidal structure with one end larger than the other.

[0011] Furthermore, the front end of the clamp is provided with convex-shaped side grooves on both sides, and each set of side grooves is provided with a conduit. One end of the two sets of conduits is fixedly connected to both ends of the external cable.

[0012] Furthermore, multiple sets of reinforcing ribs are fixed at equal intervals on the top back of the clamp.

[0013] Furthermore, the cross-section of the hook plate is L-shaped.

[0014] Beneficial effects

[0015] The technical solution provided by this utility model has the following advantages compared with the known public technology:

[0016] This utility model features a wire clamp structure with a hook plate. When the user places two sets of clamps in the inner groove, the cable can pass between the two sets of clamps. When the clamps are moved by external force, they can gradually tighten due to their trumpet-shaped structure, which is larger at one end and smaller at the other. The hook block at the bottom of the clamp can contact the hook plate to form a friction pair structure, which can help reduce movement. The external reinforcing rib structure can strengthen the structural strength of the wire clamp. Attached Figure Description

[0017] 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, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0019] Figure 2 This is the second structural schematic diagram of the present invention;

[0020] Figure 3 This is an exploded view of the structure of this utility model;

[0021] Figure 4 This is the third structural schematic diagram of this utility model.

[0022] The labels in the diagram represent: 1. Wire clamp; 11. Side groove; 12. Inner groove; 13. Hook plate; 2. Clamp block; 21. Hook block; 3. Conduit; 4. Reinforcing rib. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Example: A pre-stretched tension clamp for power transmission and distribution lines, see attached figure. Figure 1 -Appendix Figure 4 The device includes a wire clamp 1, with an inner groove 12 at the bottom center of the wire clamp 1. A hook plate 13 is fixed to the outside of the inner groove 12. Both outer walls of the hook plate 13 and the inner groove 12 are funnel-shaped with one side larger than the other. Two sets of clamping blocks 2 are provided in the inner groove 12. Two sets of hooking blocks 21 are symmetrically fixed to the bottom of the clamping blocks 2. The ends of the hooking blocks 21 are in contact with the outer walls of the hook plate 13.

[0026] The clamping block 2 has a circular groove in its middle, which is funnel-shaped with one end larger than the other; the hooking block 21 has two sets of hooking claw structures, and the hooking block 21 is trapezoidal with one end larger than the other; the front sides of the wire clamp 1 have convex side grooves 11, and each set of side grooves 11 contains a wire conduit 3, with one end of each set of wire conduits 3 fixedly connected to both ends of an external cable; multiple sets of reinforcing ribs 4 are fixed at equal intervals on the top back of the wire clamp 1; the cross-section of the hooking plate 13 is... It is L-shaped; by setting the wire clamp 1 structure with hook plate 13, when the user places the two sets of clamp blocks 2 in the inner groove 12, the cable can pass through the two sets of clamp blocks 2. When the clamp blocks 2 are moved by external force, they can be gradually tightened by the funnel-shaped structure with one end larger than the other. The hook block 21 at the bottom of the clamp block 2 can contact the hook plate 13 to form a friction pair structure, which can play a role in assisting to reduce movement. The external reinforcing rib 4 structure can play a role in strengthening the structural strength of the wire clamp 1.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A preformed strain clamp for power distribution lines, characterized in that, The device includes a wire clamp (1), with an inner groove (12) at the bottom center of the wire clamp (1). A hook plate (13) is fixed to the outside of the inner groove (12). The outer walls of both ends of the hook plate (13) and the inner groove (12) are both funnel-shaped with one side larger and the other side smaller. Two sets of clamping blocks (2) are provided in the inner groove (12). Two sets of hooking blocks (21) are symmetrically fixed to the bottom of the clamping blocks (2). The ends of the hooking blocks (21) are in contact with the outer walls of the hook plate (13).

2. A preformed strain clamp for power lines as claimed in claim 1, wherein The clamping block (2) has a circular groove in the middle, and the groove is funnel-shaped with one end larger and the other end smaller.

3. A preformed strain clamp for power lines as claimed in claim 1, wherein, The hook block (21) is provided with two sets of hook claw structures, and the hook block (21) is a trapezoidal structure with one end larger and the other end smaller.

4. A preformed strain clamp for power lines as defined in claim 1, wherein The front end of the clamp (1) is provided with convex side grooves (11) on both sides. Each set of side grooves (11) is provided with a wire tube (3). One end of the two sets of wire tubes (3) is fixedly connected to both ends of the external cable.

5. A preformed strain clamp for power lines as claimed in claim 4, wherein, Multiple sets of reinforcing ribs (4) are fixed at equal intervals on the top back of the clamp (1).

6. A preformed strain clamp for power lines as defined in claim 1, wherein The cross-section of the hook plate (13) is L-shaped.

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