High-voltage line strain clamp

Abstract

The utility model provides a strain clamp for a high-voltage line, which relates to the technical field of strain clamps, and comprises a clamp assembly which comprises a clamp body, and the clamp body is provided with a wedge-shaped cylinder with a longitudinal opening; the wedge core assembly comprises a wedge core body, the wedge core body is matched with the wedge-shaped cylinder, a wire hole is formed in the wedge core body, the wedge core body is connected with two wedge core square blocks, the two wedge core square blocks form a gap, the gap is communicated with the wire hole, and positioning holes are formed in the two wedge core square blocks respectively; and the positioning assembly comprises a positioning column, and the positioning column is matched with the positioning hole. In order to overcome the defects in the prior art, the strain clamp for the high-voltage line is developed, the positioning columns and the positioning holes are adopted, and after the wedge core body is installed in place, the positioning columns are clamped into the positioning holes, so that the position of the wedge core body is fixed.

Description

Technical Field

[0001] This utility model relates to the field of tension clamp technology, and in particular to a high-voltage line tension clamp. Background Technology

[0002] With the continuous improvement of economic level, power transmission technology has also been greatly improved. Ultra-high voltage is the most advanced power transmission technology in the world, with advantages such as large transmission capacity, long transmission distance and less land occupation. However, ultra-high voltage transmission lines need to use clamps to fix the lines. There are many types of clamps, which can be divided into equipment clamps, fusion clamps, double-headed clamps and terminal clamps.

[0003] Existing technology, such as the utility model of a tension clamp for ultra-high voltage transmission lines, authorized publication number: CN214379965U, utilizes reinforcing rods evenly installed on the inner side of the main body. These reinforcing rods enhance the internal strength and stress resistance of the main body, preventing deformation during long-term use, extending its service life, and improving its utilization rate.

[0004] Currently, there is a lack of tension clamps that can easily fix the conductor and fix the position of the wedge core body.

[0005] Therefore, in order to address the above problems, a high-voltage line tension clamp is proposed to solve them. Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies by developing a high-voltage line tension clamp. This invention uses a positioning post and a positioning hole. After the wedge core body is installed in place, the positioning post is inserted into the positioning hole to fix the position of the wedge core body.

[0007] The technical solution to the technical problem solved by this utility model is as follows: This utility model provides a high-voltage line tension clamp, including: a clamp assembly, including a clamp body, which is thicker at the front end and thinner at the rear end, and has a wedge-shaped inner cavity inside. The clamp body is provided with a longitudinally open wedge-shaped cylinder for accommodating a wedge core assembly; a wedge core assembly, including a wedge core body, which cooperates with the clamp body to generate gripping force on the conductor through the wedge structure, ensuring that the conductor does not slip during use. The wedge core body matches the wedge-shaped cylinder. The wedge core body is provided with a wire hole for accommodating and clamping the insulated conductor. The wedge core body connects two wedge core blocks, which form a gap. The two wedge core blocks match the wedge-shaped cylinder, and the gap communicates with the wire hole, facilitating the placement of the cable into the wire hole. Each of the two wedge core blocks is provided with a positioning hole, the upper part of which is a semi-cylindrical hole and the lower part is a square hole; a positioning assembly, including a positioning post, which matches the positioning hole and is used to fix the position of the wedge core assembly to prevent it from shifting during use.

[0008] As an optimization, the clamp body is connected to symmetrical fixed shafts, and the symmetrical fixed shafts are respectively rotatably connected to the upper seats. The fixed shafts are connected to the clamp body to provide support and connection functions. The symmetrical upper seats are respectively connected to T-hole shafts, and T-shafts are respectively provided in the symmetrical T-hole shafts. The symmetrical T-shafts are respectively connected to the lower seats, and the symmetrical lower seats are respectively connected to the positioning pins. The T-shafts can move within the T-hole shafts. When installing the positioning pins, the positioning pins are swung to insert them into the positioning holes. During the process, the wedge core block undergoes elastic deformation and then recovers.

[0009] As an optimization, springs are respectively installed inside the symmetrical T-hole shafts. The symmetrical springs are respectively connected to the corresponding upper seats and the corresponding T-shafts. The springs connect the upper seats and the T-shafts, providing elastic support for the positioning assembly, ensuring that the position can be flexibly adjusted when under force, while remaining stable when not under force.

[0010] As an optimization, at least one of the fixed shafts is provided with a threaded hole, and the upper seat is threadedly connected to a positioning bolt, which matches the threaded hole. The threaded connection to the threaded hole is used to fix the position of the upper seat, ultimately achieving position locking of the wedge core body and the wedge core block.

[0011] As an optimization, the system also includes a pull ring assembly comprising symmetrical pull rings. The clamp body is connected to symmetrical hanging point T-axis, and each of the symmetrical hanging point T-axis is rotatably connected to a corresponding pull ring. Bolts pass through the symmetrical pull rings and are threadedly connected to nuts. This system is used to connect insulator strings or tower crossarms, enhancing the connection stability of the clamp.

[0012] As an optimization, the clamp body is connected to a set of reinforcing ribs. This improves the structural strength of the clamp body and enhances its tensile strength and stability during use.

[0013] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0014] (1) This utility model uses the wedge-shaped structure of the clamp body and the wedge core assembly to generate sufficient gripping force on the insulated wire, ensuring that the wire does not slip during operation, thereby ensuring the safe operation of the power line.

[0015] (2) This utility model ensures that the wedge core assembly remains stable during use and prevents displacement by cooperating with the positioning pin and the positioning hole of the wedge core assembly.

[0016] (3) This utility model achieves the movement of the wedge core body and the wedge core block along the wedge-shaped cylinder direction through the design of positioning bolts and threaded holes, thereby achieving the position locking of the wedge core body and the wedge core block. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0020] Figure 3 This is a partial exploded view of the present invention.

[0021] In the picture:

[0022] 1. Wire clamp assembly; 11. Wire clamp body; 12. Reinforcing rib; 13. Hanging point T-axis; 14. Fixing shaft; 15. Threaded hole; 16. Wedge-shaped cylinder.

[0023] 2. Wedge core assembly; 21. Wedge core body; 22. Wedge core block; 23. Positioning hole; 24. Gap; 25. Wire hole;

[0024] 3. Positioning assembly; 31. Upper seat; 32. T-hole shaft; 33. T-shaft; 34. Lower seat; 35. Positioning pin; 36. Spring; 37. Positioning bolt.

[0025] 4. Pull ring assembly; 41. Nut; 42. Bolt; 43. Pull ring. Detailed Implementation

[0026] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The present invention omits descriptions of well-known components and processing techniques and processes to avoid unnecessarily limiting the present invention. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1 to 3As shown in Embodiment 1: A high-voltage line tension clamp includes: a clamp assembly 1, comprising a clamp body 11, thicker at the front end and thinner at the rear end, with a wedge-shaped inner cavity inside; the clamp body 11 is provided with a longitudinally open wedge-shaped cylinder 16 for accommodating a wedge core assembly 2; the wedge core assembly 2 includes a wedge core body 21, which cooperates with the clamp body 11 to generate gripping force on the conductor through the wedge structure, ensuring that the conductor does not slip during use; the wedge core body 21 matches the wedge-shaped cylinder 16; the wedge core body 21 is provided with a wire hole 25 for accommodating and clamping insulation. The insulated conductor, the wedge core body 21 is connected to two wedge core blocks 22, the two wedge core blocks 22 form a gap 24, the two wedge core blocks 22 match the wedge-shaped cylinder 17, the gap 24 connects to the wire hole 25, so as to facilitate the placement of the cable into the wire hole 25, the two wedge core blocks 22 are respectively provided with positioning holes 23, the upper part of the positioning hole 23 is a semi-cylindrical hole and the lower part is a square hole; the positioning component 3 includes a positioning post 35, the positioning post 35 matches the positioning hole 23, and is used to fix the position of the wedge core component 2 to prevent it from shifting during use.

[0028] The wedge core body 21 and the wedge core block 22 are made of rubber material.

[0029] like Figure 2 and 3 As shown, the clamp body 11 is connected to symmetrical fixed shafts 14. The symmetrical fixed shafts 14 are rotatably connected to the upper seat 31. The fixed shafts 14 are connected to the clamp body 11 to provide support and connection functions. The symmetrical upper seat 31 is connected to the T-hole shaft 32. The symmetrical T-hole shaft 32 is provided with T-shafts 33. The symmetrical T-shafts 33 are connected to the lower seat 34. The symmetrical lower seat 34 is connected to the positioning pin 35. The T-shafts 33 can move within the T-hole shaft 32. When installing the positioning pin 35, the positioning pin 35 is swung to insert it into the positioning hole 23. During the process, the wedge core block 22 undergoes elastic deformation and then recovers.

[0030] like Figure 1 and 2 As shown, it also includes a pull ring assembly 4 comprising symmetrical pull rings 43. The clamp body 11 is connected to symmetrical hanging point T-axis 13. The symmetrical hanging point T-axis 13 are rotatably connected to the corresponding pull rings 43. Bolts 42 pass through the symmetrical pull rings 43 and are threadedly connected to nuts 41. It is used to connect insulator strings or tower crossarms to enhance the connection stability of the clamp.

[0031] like Figure 1-3 As shown, the wire clamp body 11 is connected to a set of reinforcing ribs 12. This improves the structural strength of the wire clamp body 11 and enhances its tensile strength and stability during use.

[0032] The workflow of this embodiment is as follows:

[0033] During installation, swing the positioning pin 35 downwards. The positioning pin 35 drives the lower seat 34 to swing, which in turn drives the T-axis 33 to swing while moving along the T-hole shaft 32. The T-axis 33 drives the T-hole shaft 32 to swing, which in turn drives the upper seat 31 to swing, disengaging it from the positioning hole 23. This causes the wedge core block 22 to elastically deform. After the positioning pin 35 disengages from the positioning hole 23, the wedge core block 22 returns to its original position. Pull out the wedge core body 21 and the wedge core block 22, and insert the wire through the gap 24 into the wire hole 25. Move the wedge core body 21 and the wedge core block 22 until their ends are flush with the wire clamp body 11. Swing the positioning pin 35 in the opposite direction to engage it in the positioning hole 23.

[0034] Example 2: This example is a further elaboration based on Example 1, such as... Figure 3 As shown, at least one of the fixed shafts 14 is provided with a threaded hole 15, and the upper seat 31 is threadedly connected to a positioning bolt 37, which matches the threaded hole 15. The threaded connection to the threaded hole 15 is used to fix the position of the upper seat 31, ultimately achieving position locking of the wedge core body 21 and the wedge core block 22.

[0035] The workflow of this embodiment is as follows:

[0036] Initially, the positioning bolt 37 is not screwed into the threaded hole 15. After the positioning pin 35 is engaged in the positioning hole 23 again, the positioning bolt 37 is screwed into the threaded hole 15. This restricts the movement of the wedge core body 21 and the wedge core block 22 along the wedge-shaped cylinder 16, thereby locking the position of the wedge core body 21 and the wedge core block 22.

[0037] Example 3: This example is a further elaboration based on Example 1 or 2, such as... Figure 3 As shown, springs 36 are respectively installed inside the symmetrical T-hole shafts 32. The symmetrical springs 36 are respectively connected to the corresponding upper seats 31 and the corresponding T-shafts 33. The springs 36 connect the upper seats 31 and the T-shafts 33, providing elastic support for the positioning assembly 3, ensuring that the position can be flexibly adjusted when under force, and remains stable when not under force.

[0038] The workflow of this embodiment is as follows:

[0039] When the T-axis 33 swings, it drives the spring 36 to swing, and at the same time stretches the spring 36.

[0040] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

Claims

1. A tension clamp for high-voltage lines, characterized in that, include: The wire clamp assembly (1) includes a wire clamp body (11) having a wedge-shaped cylinder (16) with a longitudinal opening. The wedge core assembly (2) includes a wedge core body (21), which matches the wedge-shaped cylinder (16). The wedge core body (21) is provided with a wire hole (25). The wedge core body (21) connects two wedge core blocks (22), which form a gap (24). The gap (24) communicates with the wire hole (25). The two wedge core blocks (22) are respectively provided with positioning holes (23). The positioning component (3) includes a positioning post (35) that matches the positioning hole (23).

2. The high-voltage line tension clamp according to claim 1, characterized in that: The clamp body (11) is connected to a symmetrical fixed shaft (14). The symmetrical fixed shaft (14) is rotatably connected to an upper seat (31). The symmetrical upper seat (31) is connected to a T-hole shaft (32). The symmetrical T-hole shaft (32) is provided with a T-shaft (33). The symmetrical T-shaft (33) is connected to a lower seat (34). The symmetrical lower seat (34) is connected to the positioning post (35).

3. A high-voltage line tension clamp according to claim 2, characterized in that: Springs (36) are respectively provided in the symmetrical T-hole shafts (32), and the symmetrical springs (36) are respectively connected to the corresponding upper seats (31) and the symmetrical springs (36) are respectively connected to the corresponding T-shafts (33).

4. A high-voltage line tension clamp according to claim 2, characterized in that: At least one of the fixed shafts (14) is provided with a threaded hole (15), and the upper seat (31) is threadedly connected to a positioning bolt (37), the positioning bolt (37) matching the threaded hole (15).

5. A high-voltage line tension clamp according to claim 1, characterized in that: It also includes a pull ring assembly (4) comprising symmetrical pull rings (43), the clamp body (11) being connected to symmetrical hanging point T-axis (13), the symmetrical hanging point T-axis (13) being rotatably connected to the corresponding pull rings (43), and bolts (42) passing through the symmetrical pull rings (43) and threadedly connecting to nuts (41).

6. A high-voltage line tension clamp according to claim 1, characterized in that: The clamp body (11) is connected to a set of reinforcing ribs (12).

Images