CN212849616U

CN212849616U - Binding tool

Info

Publication number: CN212849616U
Application number: CN202021986063.6U
Authority: CN
Inventors: 李士雅; 马芳; 许茂茂; 寇会宾; 王伟; 胡铁栓; 裴琦; 华红伟; 王磊; 杨飞
Original assignee: State Grid Henan Xichuan Power Supply Co
Current assignee: State Grid Henan Xichuan Power Supply Co
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-03-30
Anticipated expiration: 2030-09-11

Abstract

A binding tool belongs to the field of connection of post insulators and cables. The rigid bending piece comprises a middle ring sleeve part and a spiral winding part, wherein the middle ring sleeve part is used for being sleeved at an annular groove of the post insulator, the spiral winding part is used for spirally winding a cable, and two ends of the middle ring sleeve part extend to be spirally bent to form two spiral winding parts respectively. It can be convenient dismouting post insulator and being connected of cable.

Description

Binding tool

Technical Field

The utility model relates to a post insulator and cable connecting means, concretely relates to ligature instrument.

Background

The post insulator is used for fixing the cable and realizing electrical isolation between the cable and the attachment. Generally, the post insulator and the cable are two separate parts, and the post insulator needs to be fixed in a use state.

Patent document CN210957731U describes a high-voltage cable insulator mounting and fixing device, which includes a first cable, a second cable and an insulator assembly, wherein an upper connector is arranged at the upper end of the insulator assembly, a lower connector is arranged at the lower end of the insulator assembly, and the upper connector and the lower connector are respectively in threaded connection with a first locking device and a second locking device; the first locking device is matched with the first cable, and the second locking device is matched with the second cable; the first and second locking means are of the same construction and size.

Patent document CN109038374A describes a low-voltage insulator tightening device, which is attached to an insulator, and includes: the insulating clamping ring is arranged around the annular groove of the insulator, and two ends of the insulating clamping ring respectively extend to be positioned at two sides of the insulator; the wire tightening seats are arranged at two ends of the insulation clamping ring; one end of the fixing piece is rotatably arranged on the wire tightening seat, and the other end of the fixing piece, which surrounds the cable, is connected with the wire tightening seat through a locking structure; the cable and the insulation clamping ring between the two fixing pieces are respectively arranged on two sides of the insulator.

The two tools for connecting the insulator and the cable need to be installed in an auxiliary mode, and the dismounting efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a binding tool to solve the technical problem of the dismouting of being not convenient for of current binding tool structure.

The technical scheme of the utility model is that:

the utility model provides a ligature instrument for ligature post insulator and cable, includes the rigidity bending member, the rigidity bending member is including being used for the cover to establish the well ring cover portion of the annular groove department of post insulator and the spiral winding portion that is used for the spiral winding cable, the both ends of well ring cover portion extend the spiral bending and form two respectively spiral winding portion.

Preferably, the spiral winding part is used for tightly connecting the cable, and the cable is a stranded wire.

Further, the two spiral winding parts are respectively a left spiral winding part and a right spiral winding part, and the spiral directions of the left spiral winding part and the right spiral winding part are opposite.

Furthermore, the two spiral winding parts are respectively a left spiral winding part and a right spiral winding part, the spiral directions of the left spiral winding part and the right spiral winding part are the same, and the pitch of the spiral winding parts is consistent with that of the stranded wires.

Preferably, the rigid bending member is made of a steel wire with an anti-rust isolation layer.

The utility model has the advantages that:

1. the middle ring sleeve part can realize the fixed connection of the binding tool and the post insulator, and the spiral winding part can realize the fixed connection of the binding tool and the cable, so that the fixed connection of the post insulator and the cable is realized. The material property of the rigid bending piece is convenient for sleeving the middle ring sleeve part on the annular groove of the post insulator and spirally winding the spiral winding part on the cable. The characteristics of the rigid material are matched with the structural characteristics, so that the disassembly and assembly operation of the post insulator and the cable can be conveniently realized.

2. When the cable is a twisted wire, the surface of the cable is rough, and static friction can be formed when the spiral winding part is tightly connected with the cable. Meanwhile, under the action of static friction force, the spiral winding part can also apply elastic reset force to the cable.

3. When the spiral direction of the left spiral winding part is opposite to that of the right spiral winding part, if the inner diameter of the spiral winding part is tightly connected with the cable, one spiral winding part is opposite to the spiral direction of the stranded wire, and the stranded wire is subjected to extremely large static friction force.

4. The spiral direction of the left spiral winding part is the same as that of the right spiral winding part, and when the pitch of the spiral winding part is consistent with that of the stranded wire, the laminating property of the spiral wire and the spiral wire is good.

5. The steel wire with the antirust isolation layer has long service life and long maintenance period.

Drawings

FIG. 1 is a front view of a banding tool of the present invention.

Fig. 2 is a top view of fig. 1.

FIG. 3 is a reference view showing a state of use of the ligating tool of FIG. 1.

Fig. 4 is a top view of fig. 1.

The reference numbers indicate 1-post insulator, 2-cable, 3-ligature tool, 31-middle loop, 32-left spiral wrap, 33-right spiral wrap.

Detailed Description

The present invention is described below in terms of embodiments with reference to the accompanying drawings to assist those skilled in the art in understanding and realizing the invention. Unless otherwise indicated, the following embodiments and technical terms therein should not be understood to depart from the background of the technical knowledge in the technical field.

Example 1: a binding tool, see Figs. 1-4, for binding a post insulator 1 and a cable 2, comprises a rigid bending member, the rigid bending member comprises a middle ring sleeve part 31 for being sleeved at an annular groove of the post insulator 1 and a spiral winding part for spirally winding the cable 2, and two ends of the middle ring sleeve part 31 extend and are spirally bent to form two spiral winding parts respectively.

Preferably, the spiral winding is used for tightly connecting the cable 2, and the cable 2 is a stranded wire.

Further, the two spiral wound portions are a left spiral wound portion 32 and a right spiral wound portion 33, respectively, and the spiral directions of the left spiral wound portion 32 and the right spiral wound portion 33 are opposite.

Referring to fig. 3-4, in use, the middle ring sleeve 31 is sleeved on the annular groove of the post insulator 1, a cable is placed in the cable groove at the top of the post insulator 1, the middle ring sleeve 31 and the post insulator 1 are held, the movable end of the left spiral winding part 32 is pulled to sequentially wind the left thread winding part 32 on the cable 2 from the middle ring sleeve 31 side, and then the movable end of the right spiral winding part 33 is pulled to sequentially wind the right thread winding part 33 on the cable 2 from the middle ring sleeve 31 side, so that the post insulator 1 and the cable 2 are fixedly connected.

Example 2: the utility model provides a ligature instrument for ligature post insulator 1 and cable 2, includes the rigidity curved member, and the rigidity curved member is including being used for the cover to establish the middle ring cover portion 31 of the annular groove department of post insulator 1 and the spiral winding portion that is used for spiral winding cable 2, and the both ends of middle ring cover portion 31 extend the spiral bending and form two spiral winding portions respectively. The spiral winding part is used for tightly connecting the cable 2, and the cable 2 is a stranded wire. The present embodiment is different from embodiment 1 in that the helical winding direction of the left-side helical winding portion 32 is the same as that of the right-side helical winding portion 33, and the pitch of the helical winding portion coincides with that of the twisted wire in the present embodiment.

The present invention has been described in detail with reference to the accompanying drawings and examples. It should be understood that this description is not exhaustive of all possible embodiments, and that the inventive concepts are presented herein by way of illustration to the extent possible. Without departing from the inventive concept of the present invention and without paying creative labor, the technical features of the above embodiments are combined, the specific parameters are changed by experiment, or the prior art in the technical field is used to carry out the specific implementation manner of conventional replacement formation by the disclosed technical means, which all belong to the content hidden in the present invention.

Claims

1. The utility model provides a ligature instrument for ligature post insulator and cable, its characterized in that, including the rigidity bending member, the rigidity bending member is including being used for the cover to establish the well ring cover portion of the ring channel department of post insulator and the spiral winding portion that is used for the spiral winding cable, the both ends of well ring cover portion extend the spiral bending and form two respectively spiral winding portion.

2. The ligature tool of claim 1, wherein the helical wrap is for tightly connecting the cables, the cables being twisted wires.

3. The ligating tool of claim 2, wherein two of said spirally wound sections are a left spirally wound section and a right spirally wound section, respectively, said left spirally wound section spiraling in an opposite direction to said right spirally wound section.

4. The ligating tool of claim 2, wherein two of said spirally wound portions are a left spirally wound portion and a right spirally wound portion, respectively, wherein the spiral direction of said left spirally wound portion is the same as the spiral direction of said right spirally wound portion, and wherein the pitch of said spirally wound portions is the same as the pitch of said strand.

5. The ligating tool of claim 1, wherein the rigid flexure member is made of steel wire with a rust resistant barrier.