Pre-twisted wire type strain clamp for power equipment

Abstract

The utility model discloses a pre-twisted wire type strain clamp for power equipment, and relates to the technical field of power equipment, the pre-twisted wire type strain clamp comprises a U-shaped clamp, the U-shaped clamp is in threaded connection with a fixing bolt, in the pre-twisted wire type strain clamp, a second limiting bolt is in threaded connection with an extension ring, a cable penetrates through the extension ring, a limiting piece and a twisted wire body, the limiting piece is rotated, and the fixing bolt is in threaded connection with the U-shaped clamp. The twisted wire body is attached to the outer ring face of the cable, the second limiting bolt is rotated, the clamping blocks move towards the side close to the outer ring face of the cable, the cable is clamped through the clamping blocks, the tail end of the twisted wire body is fixed, shaking of the end of the twisted wire body during use and friction to the surface of the cable are reduced, damage to the surface of the cable is reduced, and normal use of the cable is guaranteed. Insertion of the cable can be guided through the guide wheel, the cable is fixed through the supporting plate and the limiting piece, looseness of the cable in use is reduced, and the cable can be protected by wrapping the cable through the limiting piece and the supporting plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to power equipment technical field especially relates to a pre -stranded wire formula strain clamp for power equipment. BACKGROUND

[0002] The pre-stranded wire formula strain clamp is a fitting for fixing a conductor and bearing the tension of the conductor in a power line, and is usually composed of a pre-stranded wire and a connecting fitting. In a catenary system of an electrified railway, the pre-stranded wire formula strain clamp is used to fix a contact wire and a messenger wire, and bears the tension of the contact wire to ensure the normal operation of the catenary system.

[0003] For example, Chinese patent CN212197942U discloses a pre-stranded wire formula strain clamp for power equipment, which includes a pre-stranded wire formula strain clamp body, a protection frame is arranged at the inner end center of the pre-stranded wire formula strain clamp body, an adapter ring is connected to the outer end of the protection frame, a first horizontal rod is arranged at the inner end position of the protection frame, a spring block is elastically connected to the center position of the first horizontal rod through a connecting frame, a first stand is welded to the lower end position of the first horizontal rod, a center ring is inserted into the lower end of the first stand, a clasp is rotatably connected to the side end position of the center ring through a rotating shaft, the lower end position of the clasp is fixedly connected through a first clamping block and a second clamping block, a second horizontal rod is arranged at the inner end center of the adapter ring, and a second stand is fixedly connected to the top end position of the second horizontal rod.

[0004] In the above patent, although the first clamping block and the second clamping block solve the problem of inconvenience in high-strength tensile resistance at the inner end, the pre-stranded wire is directly wound on the surface of the cable, and no fixing structure is arranged at the end. When affected by shaking, the end of the pre-stranded wire will rub against the surface of the cable, causing the surface of the cable to be prone to damage and affecting the normal use of the cable. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem in the prior art that the pre-stranded wire is directly wound on the surface of the cable, no fixing structure is arranged at the end, and when affected by shaking, the end of the pre-stranded wire will rub against the surface of the cable, causing the surface of the cable to be prone to damage and affecting the normal use of the cable, and provides a pre-stranded wire formula strain clamp for power equipment.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a pre-stranded wire formula strain clamp for power equipment, including U type clamp, U type clamp is connected with fixed peg through screw thread, U type piece is inserted in U type clamp bottom, fixed mechanism is set up in U type piece bottom, fixed mechanism includes side plate, sleeve and extension ring, side plate is connected with sleeve through screw thread, sleeve one side is fixedly connected with stranded wire body, stranded wire body one end is fixedly connected with limit piece, limit piece one side is fixedly connected with extension ring, extension ring side wall is connected with limit peg two through screw thread, limit peg two one end is rotatably connected with clamping block.

[0007] Preferably, the inner ring surface of the limiting piece is fixedly connected with an elastic piece, and the elastic piece and the clamping block are both arc-shaped.

[0008] Preferably, the bottom of the side plate is fixedly connected with a bottom plate, the top of the bottom plate is fixedly connected with a fixed block, and the top of the fixed block is fixedly connected with a supporting plate.

[0009] Preferably, the top of the supporting plate is inserted with the limiting piece, the top of the limiting piece is rotatably connected with an extension rod, and the inner rod and the outer rod of the extension rod are threadedly connected.

[0010] Preferably, the top of the extension rod is fixedly connected with a connecting plate, and the bottom of the connecting plate is fixedly connected with the side plate.

[0011] Preferably, the bottom of the connecting plate is fixedly connected with a mounting frame, and one side of the mounting frame is rotatably connected with a guide wheel.

[0012] Preferably, the connecting plate is penetrated by a U-shaped piece, the U-shaped piece and the connecting plate are slidably connected, and the U-shaped piece and the connecting plate are threadedly connected with a limiting pin.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that:

[0014] 1、the utility model discloses a sleeve and side plate are connected through the thread, and the limiting pin no. 2 is connected with the extension ring through the thread, and the cable is passed through the extension ring, the limiting piece and the wire body, rotates the limiting piece, and the wire body is attached to the outer ring surface of the cable, and the limiting pin no. 2 is rotated, and the clamping block moves to the side close to the outer ring surface of the cable, and the cable is clamped by the clamping block, so that the fixation of the wire body end is realized, the shaking of the wire body end in use is reduced, and the friction on the surface of the cable is reduced, so that the damage on the surface of the cable is reduced, and the normal use of the cable is guaranteed.

[0015] 2、the utility model discloses that the bottom of the supporting plate is fixedly connected with the bottom plate through the fixed block, and the bottom of the extension rod is rotatably connected with the limiting piece, and the inner rod of the extension rod is rotated, and the limiting piece is moved down, and the bottom of the limiting piece is inserted with the supporting plate, and the insertion of the cable can be guided through the guide wheel, and the cable is fixed by the supporting plate and the limiting piece, so that the loosening of the cable in use is reduced, and the protection of the cable can also be realized through the wrapping of the limiting piece and the supporting plate. DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic diagram of the pre-stranded wire type strain clamp for power equipment is provided for the utility model;

[0017] Figure 2 A telescopic rod structure installation schematic diagram of the pre-stranded wire type strain clamp for power equipment is provided for the utility model;

[0018] Figure 3The utility model provides a prelaid wire type strain clamp's fixed block structure installation schematic drawing for power equipment.

[0019] Figure 4 The utility model provides a prelaid wire type strain clamp's elastic piece structure installation schematic drawing for power equipment.

[0020] Legend: 1, fixed peg, 2, U-shaped piece, 3, limit peg one, 4, bottom plate, 5, connecting plate, 6, side plate, 7, guide wheel, 8, telescopic link, 9, sleeve, 10, wire body, 11, supporting plate, 12, limiting piece, 13, fixed block, 14, limit peg two, 15, extension ring, 16, clamping block, 17, elastic piece, 18, U-shaped clamp. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and examples.It should be explained that the embodiment of the present application and the features in the embodiment can be combined mutually without conflict.

[0022] In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from the description herein, therefore, the utility model is not limited to the specific embodiment disclosed in the following disclosure.

[0023] Example one: refer to Figures 1-4 As shown: a prelaid wire type strain clamp for power equipment, including U-shaped clamp 18, U-shaped clamp 18 is connected with fixed peg 1 through screw thread, U-shaped clamp 18 bottom is inserted with U-shaped piece 2, U-shaped piece 2 bottom is provided with fixed mechanism, and the fixed mechanism includes side plate 6, sleeve 9 and extension ring 15, and side plate 6 is connected with sleeve 9 through screw thread, one side of sleeve 9 is fixedly connected with wire body 10, one end of wire body 10 is fixedly connected with limiting piece 12, one side of limiting piece 12 is fixedly connected with extension ring 15, and the lateral wall of extension ring 15 is connected with limit peg two 14 through screw thread, one end of limit peg two 14 is rotatably connected with clamping block 16, the inner ring surface of limiting piece 12 is fixedly connected with elastic piece 17, and elastic piece 17 and clamping block 16 are all arc-shaped.

[0024] The fixing bolt 1 and U-shaped clamp 18 can be used to assist in the connection of the entire device with the tower fasteners. The threaded connection between the side plate 6 and the sleeve 9 can be used to adjust the extension length of the sleeve 9 on one side of the side plate 6. The twisted wire body 10 can be used to connect the sleeve 9 and the limiting member 12. The twisted wire body 10 can wrap and protect the cable. The elastic member 17 can fill the gap between the inner wall of the limiting member 12 and the outer ring surface of the cable, reducing the deviation of the cable when moving in the limiting member 12. The extension ring 15 can increase the wrapping area of ​​the cable by the limiting member 12. The distance between the clamping block 16 and the outer ring surface of the cable can be adjusted by the limiting bolt 14. When the symmetrically arranged clamping blocks 16 clamp and fix the cable, the end of the twisted wire body 10 can be fixed, reducing the friction and collision damage to the cable caused by the shaking of the end of the twisted wire body 10.

[0025] Example 2: Figures 1-3 As shown, a base plate 4 is fixedly connected to the bottom of the side plate 6, a fixing block 13 is fixedly connected to the top of the base plate 4, a support plate 11 is fixedly connected to the top of the fixing block 13, a limiting member 12 is inserted into the top of the support plate 11, a telescopic rod 8 is rotatably connected to the top of the limiting member 12, the inner rod and outer rod of the telescopic rod 8 are connected by threads, a connecting plate 5 is fixedly connected to the top of the telescopic rod 8, the bottom of the connecting plate 5 is fixedly connected to the side plate 6, a mounting bracket is fixedly connected to the bottom of the connecting plate 5, a guide wheel 7 is rotatably connected to one side of the mounting bracket, the connecting plate 5 is penetrated by a U-shaped piece 2, the U-shaped piece 2 and the connecting plate 5 are slidably connected, and a limiting bolt 3 is threadedly connected between the U-shaped piece 2 and the connecting plate 5.

[0026] The base plate 4 can be used to support and reinforce the bottom of the side plate 6. The connection between the support plate 11 and the base plate 4 can be achieved through the fixing block 13, which facilitates the stable installation and use of the support plate 11 on the top of the base plate 4. The support plate 11 can be used to wrap the bottom of the cable. The height of the limiting member 12 can be adjusted by the telescopic rod 8. The insertion of the support plate 11 and the limiting member 12 can increase the wrapping area of ​​the cable, thereby limiting and protecting the cable and reducing the loosening of the cable during use. The insertion depth of the U-shaped member 2 in the connecting plate 5 can be adjusted by the sliding connection between the connecting plate 5 and the U-shaped clamp 18, thereby adjusting the distance between the connecting plate 5 and the U-shaped clamp 18. The limiting bolt 3 is used to limit the U-shaped member 2, which can ensure the stable use of the U-shaped member 2.

[0027] The method for using and the working principle of the device are as follows: firstly, the U-shaped clamp 18 is clamped on the tower fastener, then the fixed bolt 1 is used for fixed connection, the cable is sequentially threaded from the right side to the left side through the wire body 10 and the side plate 6, when moving, the guide wheel 7 rotates through friction with the cable, and the movement of the cable can be guided, after the cable is inserted, the wire body 10 on both sides is overlapped on the outer ring surface of the cable, the inner rod of the telescopic rod 8 is rotated, the length of the telescopic rod 8 is adjusted, the limiting piece 12 is lowered, the bottom of the limiting piece 12 is inserted into the supporting plate 11, the top of the cable is pressed, the cable is fixed, then the limiting piece 12 is rotated, the wire body 10 is attached to the outer ring surface of the cable, then the limiting bolt two 14 is rotated, the clamp block 16 is overlapped with the outer ring surface of the cable, the cable is clamped by the symmetrically arranged clamp blocks 16, and the wire body 10 and the limiting piece 12 are fixed.

[0028] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the present application.

Claims

1. A pre-stirred tension clamp for power equipment, comprising a U-shaped clamp (18), wherein the U-shaped clamp (18) is threadedly connected to a fixing bolt (1), characterized in that: The bottom of the U-shaped clamp (18) is inserted with a U-shaped part (2). The bottom of the U-shaped part (2) is provided with a fixing mechanism. The fixing mechanism includes a side plate (6), a sleeve (9) and an extension ring (15). The side plate (6) and the sleeve (9) are connected by threads. A twisted wire body (10) is fixedly connected to one side of the sleeve (9). A limit piece (12) is fixedly connected to one end of the twisted wire body (10). One side of the limit piece (12) is fixedly connected to the extension ring (15). The side wall of the extension ring (15) is connected to a second limit bolt (14) by threads. A clamping block (16) is rotatably connected to one end of the second limit bolt (14).

2. The pre-stirred tension clamp for power equipment according to claim 1, characterized in that: The inner ring surface of the limiting member (12) is fixedly connected to an elastic member (17), and both the elastic member (17) and the clamping block (16) are arc-shaped.

3. The pre-stirred tension clamp for power equipment according to claim 1, characterized in that: The bottom of the side plate (6) is fixedly connected to the bottom plate (4), the top of the bottom plate (4) is fixedly connected to the top of the fixing block (13), and the top of the fixing block (13) is fixedly connected to the support plate (11).

4. The pre-stirred tension clamp for power equipment according to claim 3, characterized in that: A limiting member (12) is inserted into the top of the tray (11), and a telescopic rod (8) is rotatably connected to the top of the limiting member (12). The inner rod and outer rod of the telescopic rod (8) are connected by threads.

5. The pre-stirred tension clamp for power equipment according to claim 4, characterized in that: The top of the telescopic pole (8) is fixedly connected to a connecting plate (5), and the bottom of the connecting plate (5) is fixedly connected to the side plate (6).

6. The pre-stirred tension clamp for power equipment according to claim 5, characterized in that: The bottom of the connecting plate (5) is fixedly connected to a mounting bracket, and a guide wheel (7) is rotatably connected to one side of the mounting bracket.

7. The pre-stirred tension clamp for power equipment according to claim 6, characterized in that: The connecting plate (5) is penetrated by the U-shaped part (2), and the U-shaped part (2) and the connecting plate (5) are slidably connected. The U-shaped part (2) and the connecting plate (5) are connected by a threaded bolt (3).

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