Strain clamp for high-voltage line

Abstract

The invention provides a strain clamp for a high-voltage line. The first shell is rotationally installed at the top of the second shell through a hinge, an extrusion wedge block is installed on the inner wall of the second shell in a sliding mode, the pushing and extruding mechanism is arranged between the inner wall of the first shell and the inner wall of the second shell, and the enclasping mechanism is fixedly installed on the inner wall of the second shell; the lifting and replacing mechanism is arranged between the inner wall of the first shell and the inner wall of the second shell. According to the strain clamp for the high-voltage line, after the shell of the clamp is closed, a wire is clamped through the wedging effect between the wedge block and the clamp body, when the wire is subjected to tension, the wedge block is wedged more and more tightly, and therefore reliable gripping force can be provided, the wedge block cannot be loosened due to the external effect in the long-time working state, and the service life of the wire is prolonged. The simple structure enables installation and operation to be relatively easy, and complex tools and technologies are not needed.

Description

Technical Field

[0001] The invention relates to the connection field in high-voltage lines, and in particular to a tension clamp for high-voltage lines. Background Art

[0002] High-voltage power transmission is a key means to achieve long-distance, large-capacity power transmission. By increasing the transmission voltage, the current in the transmission line can be reduced, thereby reducing line losses and improving transmission efficiency. Therefore, in modern power systems, high-voltage lines, as the "arteries" of power transmission, are crucial for safe and stable operation. As a key component in high-voltage lines, tension clamps play an important role in fixing conductors, bearing conductor tension, and achieving electrical connections.

[0003] At present, the common tension clamps for high-voltage lines on the market mainly include bolt type, wedge type and compression type. Among them, the wedge type tension clamp uses the wedging effect of the wedge block to fix the conductor. The wedge type clamp is widely used in the construction of transmission lines due to its stable operation and simple installation, and has a certain self-locking function. However, under the long-term working state, due to the influence of natural weather, the wedge block of the wedge type tension clamp may become loose after long-term operation, affecting the clamping effect.

[0004] Therefore, it is necessary to provide a tension clamp for high voltage lines to solve the above technical problems. Summary of the invention

[0005] The invention provides a tension clamp for a high-voltage line, which solves the problem that a wedge block of the type tension clamp may become loose after long-term operation, thereby affecting the clamping effect.

[0006] In order to solve the above technical problems, the present invention provides a tension clamp for high voltage lines, comprising:

[0007] Shell 2;

[0008] Shell 1, wherein the shell 1 is rotatably mounted on the top of the shell through a hinge, and an extrusion wedge is slidably mounted on the inner wall of the shell 2;

[0009] A pushing mechanism is arranged between the inner walls of the shell one and the shell two, and includes a pushing connecting rod and a pushing rotating seat. One end surface of the pushing connecting rod is rotatably connected to the inner wall of the shell one through the rotating seat, and the other end surface of the pushing connecting rod is rotatably connected to the surface of the pushing rotating seat. The bottom of the pushing rotating seat is rotatably installed on the surface of the extrusion wedge block.

[0010] Preferably, the angle between the pushing connecting rod and the pushing rotating seat always maintains a movable range of 120 degrees to 180 degrees.

[0011] Preferably, the clamping mechanism is fixedly mounted on the inner wall of the outer shell two, and the clamping mechanism includes a clamping wheel, the surface of the clamping wheel is rotatably mounted on the inner wall of the outer shell two through a mounting seat, the inner surface of the clamping wheel is meshed with four clamping claws, a stopping claw is rotatably mounted on one side surface of the outer shell two, the bottom of the stopping claw is fixedly connected to a spring, and one end of the spring is fixedly mounted on one side surface of the outer shell two.

[0012] Preferably, one side surface of the housing is rotatably connected to a clamping link via a swivel seat, and one end of the clamping link is rotatably connected to the surface of the clamping wheel.

[0013] Preferably, the length of the clamping link and the angle at which the clamping link is installed are adapted to the degree of clamping of the high-voltage wire by the clamping claw.

[0014] Preferably, the lifting and replacing mechanism is arranged between the shell one and the inner wall of the shell two, and the lifting and replacing mechanism comprises a movable connecting rod, the movable connecting rod is rotatably connected to the inner wall of the shell one through a swivel seat, one end of the movable connecting rod is rotatably installed with a lifting connecting rod, a limit block is slidably installed on the surface of the lifting connecting rod, one side surface of the limit block is fixedly installed on the inner wall of the shell one, one end of the lifting connecting rod is rotatably connected with a detent block, the surface of the detent block is rotatably installed on the inner wall of the shell two, one end of the detent block is rotatably connected with a lifting rotating block, and a lifting rotating frame is rotatably installed on the center surface of the lifting rotating block, the bottom of the lifting rotating frame is fixedly installed on the inner wall of the shell two, and a lifting plate is fixedly installed on one end of the top of the lifting rotating block, and two telescopic rods are fixedly installed on the bottom of the lifting plate, and the bottom of the two telescopic rods are fixedly installed on the inner wall of the shell two.

[0015] Preferably, the turning block and the lifting rotating block are rotationally connected and relatively slidably connected at the same time.

[0016] Preferably, the lifting height of the lifting plate is adapted to the thickness of the extrusion wedge.

[0017] Compared with the related art, the tension clamp for high voltage lines provided by the present invention has the following beneficial effects:

[0018] The present invention provides a tension clamp for a high-voltage line. After the high-voltage line passes through the tension clamp, the outer shell of the clamp is closed and the conductor is clamped by utilizing the wedging action between a wedge block and a body of the clamp. When the conductor is subjected to tension, the wedge block becomes tighter and tighter, thereby providing a reliable grip. Under long-term working conditions, the wedge block will not become loose due to external effects. Moreover, this simple structure makes it relatively easy to install and operate, and does not require complicated tools and techniques. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a preferred embodiment of a tension clamp for a high voltage line provided by the present invention;

[0020] Figure 2 for Figure 1 The structural schematic diagram of the pushing mechanism shown;

[0021] Figure 3 A schematic structural diagram of a second preferred embodiment of a tension clamp for a high voltage line provided by the present invention;

[0022] Figure 4 for Figure 3 The structural schematic diagram of the clamping mechanism shown;

[0023] Figure 5 A schematic structural diagram of a third preferred embodiment of a tension clamp for a high voltage line provided by the present invention;

[0024] Figure 6 A schematic diagram of the structure of one side of a third preferred embodiment of a tension clamp for a high-voltage line provided by the present invention;

[0025] Figure 7 for Figure 6 The structural schematic diagram of the lifting and replacement mechanism shown;

[0026] Figure 8 A motion diagram of a tension clamp for a high-voltage line provided by the present invention.

[0027] Numbers in the figure: 1. Shell 1, 2. Shell 2, 3. Pushing mechanism, 301. Pushing connecting rod, 302. Pushing rotating seat, 4. Extruding wedge block, 5. Clamping mechanism, 501. Clamping wheel, 502. Clamping claw, 503. Stop claw, 504. Spring, 6. Clamping connecting rod, 7. Lifting and replacing mechanism, 701. Movable connecting rod, 702. Pulling connecting rod, 703. Limiting block, 704. Turning block, movable connecting rod, 705. Lifting rotating block, 706. Lifting rotating frame, 707. Lifting plate, 708. Telescopic rod. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0029] Please refer to Figure 1 and Figure 2 , a tension clamp for a high voltage line comprises:

[0030] Shell II 2;

[0031] Shell 1, the shell 1 is rotatably mounted on the top of the shell 2 through a hinge, and an extrusion wedge 4 is slidably mounted on the inner wall of the shell 2;

[0032] The pushing mechanism 3 is arranged between the inner walls of the outer shell 1 and the outer shell 2, and the pushing mechanism 3 includes a pushing connecting rod 301 and a pushing rotating seat 302. One end surface of the pushing connecting rod 301 is rotatably connected to the inner wall of the outer shell 1 through a rotating seat, and the other end surface of the pushing connecting rod 301 is rotatably connected to the surface of the pushing rotating seat 302. The bottom of the pushing rotating seat 302 is rotatably installed on the surface of the extrusion wedge block 4.

[0033] The angle between the pushing connecting rod 301 and the pushing rotating seat 302 always maintains a movable range of 120 degrees to 180 degrees.

[0034] The length of the pushing connecting rod 301 is to ensure that the housing 1 can push the squeezing wedge 4 and firmly squeeze the wire when it is turned over, and will not hit the inner wall of the housing 1 while rotating.

[0035] The working principle of a tension clamp for high-voltage lines provided by the present invention is as follows:

[0036] After the conductor passes through the tension clamp, the housing 1 is closed so that the housing 1 and the housing 2 are tightly closed to form a whole. While closing the housing 1 and the housing 2, the housing 1 pushes the pushing connecting rod 301, and the pushing connecting rod 301 further pushes the squeezing wedge block 4 to wedge-clamp the conductor in the clamp, and finally the clamp is tightened to prevent loosening by bolts.

[0037] Compared with the related art, the tension clamp for high voltage lines provided by the present invention has the following beneficial effects:

[0038] The wire is clamped by closing the housing 1 and the housing 2 2 and utilizing the wedging effect between the extrusion wedge 4 and the wire clamp body. When the wire is subjected to tension, the wedge will become tighter and tighter, and the wedge will not become loose due to external influences during long-term operation. This simple structure makes it relatively easy to install and operate, and does not require complicated tools and techniques.

[0039] Second embodiment

[0040] Please refer to Figure 3 and Figure 4 Based on the first embodiment of the present application, a tension clamp for a high-voltage line is provided. The second embodiment of the present application provides another tension clamp for a high-voltage line. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0041] Specifically, the second embodiment of the present application provides a tension clamp for a high-voltage line. The difference is that the clamping mechanism 5 is fixedly mounted on the inner wall of the housing 2, the clamping mechanism 5 includes a clamping wheel 501, the surface of the clamping wheel 501 is rotatably mounted on the inner wall of the housing 2 through a mounting seat, the inner surface of the clamping wheel 501 is meshed with four clamping claws 502, a stop claw 503 is rotatably mounted on one side surface of the housing 2, the bottom of the stop claw 503 is fixedly connected with a spring 504, one end of the spring 504 is fixedly mounted on one side surface of the housing 2. A clamping link 6 is rotatably connected to one side surface of the housing 1 through a swivel seat, one end of the clamping link 6 is rotatably connected to the surface of the clamping wheel 501. The length of the clamping link 6 and the angle at which the clamping link 6 is installed are adapted to the degree of clamping of the clamping claw 502 on the high-voltage line.

[0042] The rotation of the clamping wheel 501 can drive the clamping claw 502 to rotate significantly and clamp the wire, while the locking claw 503 cooperates to prevent the wire from getting loose.

[0043] The working principle of a tension clamp for high-voltage lines provided by the present invention is as follows:

[0044] When the housing 2 2 and the housing 1 1 are opened, the housing 1 drives the clamping link 6 to push the clamping wheel 501, and then drives the clamping claw 502 to clamp the wire. At the same time, the stop claw 503 prevents the clamping wheel 501 from rotating in the opposite direction to make the wire loose. When it is necessary to close, the stop claw 503 is twisted, and then the housing 2 2 and the housing 1 1 are closed to wedge the wire.

[0045] Compared with the related art, the tension clamp for high voltage lines provided by the present invention has the following beneficial effects:

[0046] When inspecting the wire clamp, it is convenient for maintenance personnel to inspect and repair. The maintenance personnel no longer need to re-assemble the wire and tighten the wire. The maintenance personnel only need to open the shell 2 and the shell 1, and the wire can be clamped by the action of the clamping wheel 501, which is convenient for maintenance personnel to inspect and repair.

[0047] The third implementation

[0048] Please refer to Figure 5 , Figure 6 , Figure 7 and Figure 8 Based on the first embodiment of the present application, a tension clamp for a high-voltage line is provided. The third embodiment of the present application provides another tension clamp for a high-voltage line. The third embodiment is only a preferred embodiment of the first embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first embodiment.

[0049] Specifically, the third embodiment of the present application provides a tension clamp for a high-voltage line, which is different in that the lifting and replacement mechanism 7 is arranged between the inner wall of the shell 1 and the shell 2, and the lifting and replacement mechanism 7 includes a movable connecting rod 701, and the movable connecting rod 701 is rotatably connected to the inner wall of the shell 1 through a swivel seat, and one end of the movable connecting rod 701 is rotatably installed with a lifting connecting rod 702, and a limit block 703 is slidably installed on the surface of the lifting connecting rod 702, and one side surface of the limit block 703 is fixedly installed on the inner wall of the shell 1, and the lifting connecting rod 702 One end of the deflection block 704 is rotatably connected, and the surface of the deflection block 704 is rotatably mounted on the inner wall of the shell 2, and one end of the deflection block 704 is rotatably connected to a lifting rotating block 705, and the central surface of the lifting rotating block 705 is rotatably mounted with a lifting rotating frame 706, and the bottom of the lifting rotating frame 706 is fixedly mounted on the inner wall of the shell 2, and one end of the top of the lifting rotating block 705 is fixedly mounted with a lifting plate 707, and the bottom of the lifting plate 707 is fixedly mounted with two telescopic rods 708, and the bottoms of the two telescopic rods 708 are fixedly mounted on the inner wall of the shell 2. The deflection block 704 and the lifting rotating block 705 are rotatably connected and relatively slidably connected. The lifting height of the lifting plate 707 is adapted to the thickness of the extrusion wedge block 4.

[0050] The lifting of the lifting plate 707 can ensure that the extrusion wedge block 4 can be taken out smoothly, and the movement of the lifting rotating block 705 does not interfere with the turning block 704 .

[0051] The working principle of a tension clamp for high-voltage lines provided by the present invention is as follows:

[0052] When the shell 1 is opened, the shell 1 pulls the movable connecting rod 701, and at the same time drives the pulling connecting rod 702 to pull the turning block 704 to rotate. When the turning block 704 rotates, it drives the lifting rotating block 705 to rotate and lift the lifting plate 707 to lift the wire, and when the shell 1 is opened, the extrusion wedge block 4 is smoothly pulled out.

[0053] Compared with the related art, the tension clamp for high voltage lines provided by the present invention has the following beneficial effects:

[0054] By opening the housing 1, the conductor is lifted to a certain height and the extrusion wedge 4 is pulled out, so that it is convenient for maintenance workers to replace the extrusion wedge 4 that has been working for a long time, ensuring the normal operation of the tension clamp without affecting the transmission of high voltage electricity.

[0055] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tension clamp for high voltage lines, characterized in that: include; Shell two (2); Shell 1 (1), the shell 1 (1) is rotatably mounted on the top of the shell (2) through a hinge, and an extrusion wedge (4) is slidably mounted on the inner wall of the shell 2 (2); A pushing mechanism (3), the pushing mechanism (3) is arranged between the inner walls of the shell one (1) and the shell two (2), the pushing mechanism (3) comprises a pushing connecting rod (301) and a pushing rotating seat (302), one end surface of the pushing connecting rod (301) is rotatably connected to the inner wall of the shell one (1) through the rotating seat, the other end surface of the pushing connecting rod (301) is rotatably connected to the surface of the pushing rotating seat (302), and the bottom of the pushing rotating seat (302) is rotatably mounted on the surface of the extrusion wedge block (4).

2. A tension clamp for high voltage lines according to claim 1, characterized in that: The angle between the pushing connecting rod (301) and the pushing rotating seat (302) always maintains a movable range of 120 degrees to 180 degrees.

3. A tension clamp for high voltage lines according to claim 1, characterized in that: The clamping mechanism (5) is fixedly mounted on the inner wall of the second shell (2), and the clamping mechanism (5) comprises a clamping wheel (501), the surface of the clamping wheel (501) is rotatably mounted on the inner wall of the second shell (2) through a mounting seat, the inner surface of the clamping wheel (501) is meshed with four clamping claws (502), a stop claw (503) is rotatably mounted on a side surface of the second shell (2), the bottom of the stop claw (503) is fixedly connected to a spring (504), and one end of the spring (504) is fixedly mounted on a side surface of the second shell (2).

4. A tension clamp for high voltage lines according to claim 3, characterized in that: A side surface of the housing 1 (1) is rotatably connected to a clamping link (6) via a swivel seat, and one end of the clamping link (6) is rotatably connected to the surface of the clamping wheel (501).

5. A tension clamp for high voltage lines according to claim 3, characterized in that: The length of the clamping link (6) and the angle at which the clamping link (6) is installed are adapted to the degree of clamping of the high-voltage wire by the clamping claw (502).

6. A tension clamp for high voltage lines according to claim 1, characterized in that: The lifting and replacement mechanism (7) is arranged between the inner wall of the shell one (1) and the shell two (2), and the lifting and replacement mechanism (7) includes a movable connecting rod (701), and the movable connecting rod (701) is rotatably connected to the inner wall of the shell one (1) through a swivel seat, and one end of the movable connecting rod (701) is rotatably installed with a lifting connecting rod (702), and a limit block (703) is slidably installed on the surface of the lifting connecting rod (702), and one side surface of the limit block (703) is fixedly installed on the inner wall of the shell one (1), and one end of the lifting connecting rod (702) is rotatably connected with a toggle block (704). The surface of the turning block (704) is rotatably mounted on the inner wall of the second shell (2), one end of the turning block (704) is rotatably connected to a lifting rotating block (705), the central surface of the lifting rotating block (705) is rotatably mounted with a lifting rotating frame (706), the bottom of the lifting rotating frame (706) is fixedly mounted on the inner wall of the second shell (2), one end of the top of the lifting rotating block (705) is fixedly mounted with a lifting plate (707), the bottom of the lifting plate (707) is fixedly mounted with two telescopic rods (708), and the bottoms of the two telescopic rods (708) are fixedly mounted on the inner wall of the second shell (2).

7. A tension clamp for high voltage lines according to claim 6, characterized in that: The turning block (704) and the lifting turning block (705) are rotationally connected and relatively slidably connected at the same time.

8. A tension clamp for high voltage lines according to claim 6, characterized in that: The lifting height of the lifting plate (707) is adapted to the thickness of the extrusion wedge (4).

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