Four-core strain clamp capable of clamping firmly

Abstract

The utility model discloses a firmly clamping four-core strain clamp, the firmly clamping four-core strain clamp comprises a base plate, the upper end and the lower end of the base plate are provided with clamping assemblies, each clamping assembly comprises a clamping base plate and a clamping cover plate, the clamping cover plate is provided with two wire clamping grooves, the clamping base plate is provided with two abdicating grooves, and the abdicating grooves are arranged on the base plate. A plurality of penetrating holes are formed in the abdicating groove at equal intervals, cylinders are arranged in the penetrating holes, wire clamping plates are arranged in the abdicating groove and fixedly connected with the cylinders, and springs are arranged on the cylinders, abut against the bottom plate and act on the wire clamping plates, so that the wire clamping plates abut against the wire clamping grooves, and holes wrapping wires are formed. According to the utility model, the wire clamping plate can move up and down through the spring, wires with different diameters can be accommodated conveniently, when the diameter of the wire changes, the spring enables the wire clamping plate to cling to the surface of the wire all the time, the wire is ensured to be subjected to enough clamping force, and the product has the advantages of compensation function and firm clamping.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power hardware, in particular to a four-core tension wire clamp with firm clamping. Background Art

[0002] A tension clamp is a metal fitting used to fix a conductor to withstand the conductor tension and hang the conductor on a tension string or pole tower. The existing four-core tension clamp only provides a tension connection point. When the conductor is affected by tension, the conductor is forced to extend and the diameter becomes smaller, which in turn weakens the gripping force applied by the clamp to the conductor, resulting in wire slippage. Therefore, the applicant has made a useful design and found a solution to the above problem. The technical solution to be introduced below was produced in this context. Summary of the invention

[0003] The purpose of the utility model is to overcome the shortcomings of the above-mentioned traditional four-core tension clamp design and provide a product with compensation function and firm clamping.

[0004] To solve the above problems, the utility model adopts the following technical solutions.

[0005] A four-core tension wire clamp with firm clamping comprises a base plate, wherein the upper and lower ends of the base plate are provided with clamping assemblies, wherein the clamping assembly comprises a clamping base plate and a clamping cover plate, wherein the clamping cover plate is provided with two wire clamping grooves, wherein the clamping base plate is provided with two clearance grooves, wherein the clearance grooves are provided with a plurality of equally spaced through holes, wherein the through holes are provided with cylinders, wherein the clearance grooves are provided with wire clamping plates, which are connected and fixed to the cylinders, wherein the cylinders are provided with springs, which abut against the base plate and act on the wire clamping plates, so that the wire clamping plates abut against the wire clamping grooves, forming holes for wrapping the wires, and wherein a spacing is left between the bottom of the wire clamping plate and the bottom of the clearance grooves.

[0006] Preferably, the through hole is provided with a limiting blind hole, the cylinder is provided with a retaining ring and is arranged in the limiting blind hole, the cylinder is provided with a first countersunk hole, and the cylinder is provided with a threaded hole.

[0007] Preferably, the bottom plate is provided with a second countersunk hole corresponding to the perforation, and connecting blocks are provided on both sides of the bottom plate, and the connecting blocks are provided with U-shaped pull rods.

[0008] Preferably, the spring is arranged in the first countersunk hole and the second countersunk hole.

[0009] Preferably, the wire clamping groove and the wire clamping plate are provided with a plurality of convex ribs at equal intervals, the wire clamping plate is provided with positioning holes corresponding to the threaded holes, and the positioning holes are provided with headless screws to connect and fix the wire clamping plate to the cylinder.

[0010] Preferably, the base plate, the clamping base plate and the clamping cover plate are provided with at least two through holes, the upper and lower ends of the base plate are provided with a plurality of first avoidance grooves, the clamping base plate is provided with at least two second avoidance grooves, the clamping base plate is provided with a first protrusion corresponding to the first avoidance groove and inserted in the first avoidance groove, the clamping cover plate is provided with a second protrusion corresponding to the second avoidance groove and inserted in the second avoidance groove.

[0011] Preferably, the through holes are provided with fastening bolts to connect and fix the bottom plate and the clamping bottom plate, and the clamping bottom plate and the clamping cover plate to each other.

[0012] Preferably, avoidance grooves are provided on both sides of the wire clamping groove, and the wire clamping plate abuts against the avoidance grooves.

[0013] Beneficial effects:

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model enables the wire clamping plate to move up and down through the spring, so as to accommodate wires of different diameters. When the wire diameter changes, the spring makes the wire clamping plate always close to the wire surface, ensuring that the wire is subjected to sufficient clamping force. In addition, according to the material and type of the spring and the coordination of multiple convex ribs, it is ensured that the wire is firmly fixed between the clamping plate and the wire clamping groove to prevent the wire from slipping, so that the product has the advantages of compensation function and firm clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a four-core tension wire clamp with firm clamping according to the utility model;

[0017] Figure 2 This is a schematic diagram of the side cross-sectional structure of a four-core tension wire clamp with a firm clamping function according to the utility model. Figure 1 ;

[0018] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle part;

[0019] Figure 4 This is a schematic diagram of the side cross-sectional structure of a four-core tension wire clamp with a firm clamping function according to the utility model. Figure 2 ;

[0020] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0021] Figure numerals: 1. base plate; 2. clamping assembly; 3. cylinder; 4. spring; 5. through hole; 6. fastening bolt; 11. second countersunk hole; 12. connecting block; 13. U-shaped pull rod; 14. first avoidance groove; 21. clamping base plate; 22. clamping cover plate; 23. wire clamping plate; 24. convex rib; 211. make way groove; 212. through hole; 213. limit blind hole; 214. second avoidance groove; 215. first protrusion; 221. wire clamping groove; 222. second protrusion; 223. avoidance groove; 231. positioning hole; 232. headless screw; 31. retaining ring; 32. first countersunk hole; 33. threaded hole. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0024] Reference example Figures 1 to 4 , a four-core tension wire clamp with firm clamping, comprising a bottom plate 1, a clamping assembly 2 is provided at the upper and lower ends of the bottom plate 1, the clamping assembly 2 comprises a clamping bottom plate 21, a clamping cover plate 22, the clamping cover plate 22 is provided with two clamping grooves 221, the clamping bottom plate 21 is provided with two give-way grooves 211, the give-way groove 211 is provided with a plurality of equally spaced perforations 212, the perforations 212 are provided with cylinders 3, the give-way groove 211 is provided with a clamping plate 23, and is connected and fixed to the cylinder 3, the cylinder 3 is provided with a spring 4, and abuts the bottom plate 1, and acts on the clamping plate 23, so that the clamping plate 23 abuts against the clamping groove 221, forming a hole for wrapping the wire, and a spacing is left between the bottom of the clamping plate 23 and the bottom of the give-way groove 211, the spacing is the space for the clamping plate 23 to move downward, thereby increasing the distance between the clamping plate 23 and the clamping groove 221;

[0025] It is worth mentioning that the through hole 212 is provided with a limiting blind hole 213, the cylinder 3 is provided with a retaining ring 31, and is arranged in the limiting blind hole 213, the cylinder 3 is provided with a first countersunk hole 32, and the cylinder 3 is provided with a threaded hole 33. The limiting blind hole 213 limits the upward movement distance of the cylinder 3, the first countersunk hole 32 provides more accommodation space for the spring 4, and the threaded hole 33 is used in conjunction with the headless screw 232;

[0026] It is worth mentioning that the bottom plate 1 is provided with a second countersunk hole 11 corresponding to the through hole 212, and connecting blocks 12 are provided on both sides of the bottom plate 1. The connecting blocks 12 are provided with U-shaped pull rods 13. The second countersunk hole 11 provides more accommodation space for the spring 4. The U-shaped pull rod 13 can be fixed on the wire rod to provide a tension-resistant connection point for the wire.

[0027] It is worth mentioning that the spring 4 is arranged in the first countersunk hole 32 and the second countersunk hole 11. The spring 4 can be a rectangular cross-section cylindrical helical compression spring or a flat cross-section cylindrical helical compression spring. This type of spring 4 has the advantages of large energy storage and high rigidity in a small compression space.

[0028] It is worth mentioning that the clamping groove 221 and the clamping plate 23 are provided with a plurality of convex ribs 24 at equal intervals. The clamping plate 23 is provided with a positioning hole 231 corresponding to the threaded hole 33. The positioning hole 231 is provided with a headless screw 232, so that the clamping plate 23 is connected and fixed to the cylinder 3. The convex rib 24 abuts against the surface of the wire, thereby increasing the friction between the wire and the clamping groove 221 and the clamping plate to prevent the wire from slipping. The headless screw 232 is used to prevent the head from protruding and interfering with the wire.

[0029] It is worth mentioning that the bottom plate 1, the clamping bottom plate 21, and the clamping cover plate 22 are provided with at least two through holes 5, the upper and lower ends of the bottom plate 1 are provided with a plurality of first avoidance grooves 14, the clamping bottom plate 21 is provided with at least two second avoidance grooves 214, the clamping bottom plate 21 is provided with a first convex block 215 corresponding to the first avoidance groove 14, and is inserted in the first avoidance groove 14, the clamping cover plate 22 is provided with a second convex block 222 corresponding to the second avoidance groove 214, and is inserted in the second avoidance groove 214, and the through hole 5 is convenient for the use of bolts The first protrusion 215 is inserted into the first avoidance groove 14 to prevent the clamping base plate 21 from being displaced on the base plate 1 during the process of screwing the bolt, thereby causing the center points of the first countersunk hole 32 and the second countersunk hole 11 to be offset. The second protrusion 222 is inserted into the second avoidance groove 214 to prevent the clamping cover plate 22 from being displaced on the clamping base plate 21 during the process of screwing the bolt, thereby causing the clamping groove 221 and the clamping plate 23 to be misaligned. At the same time, the first avoidance groove 14 and the second avoidance groove 214 also play a positioning role;

[0030] It is worth mentioning that the through hole 5 is provided with a fastening bolt 6, so that the bottom plate 1 and the clamping bottom plate 21, and the clamping bottom plate 21 and the clamping cover plate 22 are connected and fixed to each other;

[0031] It is worth mentioning that avoidance grooves 223 are provided on both sides of the wire clamping groove 221, and the wire clamping plate 23 abuts against the avoidance grooves 223. The yielding grooves 211 increase the upward movement distance of the wire clamping plate 23, so as to facilitate the accommodation of wires with smaller diameters.

[0032] The above design scheme can enable the product to achieve the advantages of compensation function and firm clamping.

[0033] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A four-core tension clamp with a firm clamping function, comprising a base plate (1), wherein the base plate (1) is provided with clamping components (2) at the upper and lower ends, wherein the clamping components (2) include a clamping base plate (21) and a clamping cover plate (22), wherein: The clamping cover plate (22) is provided with two wire clamping grooves (221), the clamping bottom plate (21) is provided with two clearance grooves (211), the clearance groove (211) is provided with a plurality of equally spaced through holes (212), the through holes (212) are provided with a cylinder (3), the clearance groove (211) is provided with a wire clamping plate (23) and is connected and fixed to the cylinder (3), the cylinder (3) is provided with a spring (4) and abuts against the bottom plate (1) and acts on the wire clamping plate (23), so that the wire clamping plate (23) abuts against the wire clamping groove (221) to form a hole for wrapping the wire, and a distance is left between the bottom of the wire clamping plate (23) and the bottom of the clearance groove (211).

2. The four-core tension clamp with firm clamping according to claim 1 is characterized in that: The through hole (212) is provided with a limiting blind hole (213), the cylinder (3) is provided with a retaining ring (31) and is arranged in the limiting blind hole (213), the cylinder (3) is provided with a first countersunk hole (32), and the cylinder (3) is provided with a threaded hole (33).

3. The four-core tension clamp with firm clamping according to claim 2 is characterized in that: The bottom plate (1) is provided with a second countersunk hole (11) corresponding to the through hole (212), and connecting blocks (12) are provided on both sides of the bottom plate (1), and the connecting blocks (12) are provided with U-shaped pull rods (13).

4. The four-core tension clamp with firm clamping according to claim 3 is characterized in that: The spring (4) is arranged in the first countersunk hole (32) and the second countersunk hole (11).

5. The four-core tension clamp with firm clamping according to claim 4 is characterized in that: The wire clamping groove (221) and the wire clamping plate (23) are provided with a plurality of convex ribs (24) at equal intervals, the wire clamping plate (23) is provided with a positioning hole (231) corresponding to the threaded hole (33), and the positioning hole (231) is provided with a headless screw (232) so that the wire clamping plate (23) is connected and fixed to the cylinder (3).

6. The four-core tension clamp with firm clamping according to claim 1 is characterized in that: The base plate (1), the clamping base plate (21), and the clamping cover plate (22) are provided with at least two through holes (5); the base plate (1) is provided with a plurality of first avoidance grooves (14) at the upper and lower ends; the clamping base plate (21) is provided with at least two second avoidance grooves (214); the clamping base plate (21) is provided with a first convex block (215) corresponding to the first avoidance groove (14) and inserted in the first avoidance groove (14); the clamping cover plate (22) is provided with a second convex block (222) corresponding to the second avoidance groove (214) and inserted in the second avoidance groove (214).

7. The four-core tension clamp with firm clamping according to claim 6 is characterized in that: The through hole (5) is provided with a fastening bolt (6) so that the base plate (1) and the clamping base plate (21), and the clamping base plate (21) and the clamping cover plate (22) are connected and fixed to each other.

8. The four-core tension clamp with firm clamping according to claim 1 is characterized in that: Avoidance grooves (223) are provided on both sides of the wire clamping groove (221), and the wire clamping plate (23) abuts against the avoidance grooves (223).

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