CN102545091B - Charged disconnecting wire lead clamp device - Google Patents

Abstract

The present invention relates to a tool or equipment for installing and dismounting cables or wires, in particular to a lead wire clip device for disconnecting live wires. It is an inverted "T"-shaped structure, with a through hole on the top, and a screw hole communicating with the through hole on the outer wall of the through hole, and bolts are screwed into the screw hole from outside to inside, and the lower bottom is a semicircular arc groove; The second clamp body has a semi-circular arc groove corresponding to the semi-circular arc groove on the first clamp body. After the two are combined, a circular hole is formed. The shoulder side of the first clamp body and the second clamp body is hinged. member, and a fastener connecting the first clamping body and the second clamping body is installed on the other side shoulder. The utility model has the advantages of shortening the working time of the workers in the electric field, ensuring the safety of the workers, and improving the working efficiency. The wire clamp device has a simple structure, convenient operation, reliable connection and strong practical effect. Adjusting the length of the copper wire rope is simple and convenient.

Description

Live disconnect wire lead wire clamp device

technical field

The invention relates to a tool or equipment for installing and dismounting a cable or an electric wire, in particular to a wire clamp device for disconnecting a live wire.

Background technique

During the operation of the transmission line, due to the line infrastructure, defect treatment, etc., it is necessary to untie or connect the lead wire of a certain line connection point. When the line cannot be powered off to handle the above operations, only live work can be used to disconnect or connect. Connect the wires. The disconnection of the lead wire with power can only be carried out on the no-load line. At this time, the diversion rope must be used, and the no-load line has capacitive current, so arc suppression measures must be taken during the disconnection process. At present, the arc-suppression rope is used as a diversion and arc-extinguishing tool. The arc-suppression rope itself has no arc-suppression ability. It uses the artificial disconnection speed to extend the arc to achieve the purpose of self-extinguishing. The arc suppression rope is made by weaving a section of copper wire rope at the end of silk insulating rope or nylon insulating rope. During live work, it is necessary to tie the copper wire rope to the lead wire of the connecting wire, and at the same time, the copper wire rope is connected to the wire and conducts conduction. At this time, the copper wire rope is equivalent to a temporary transition wire.

Since the copper wire rope is the diversion wire that connects the wire lead at the same time during the live disconnection of the wire lead, in order to ensure the smooth completion of the live work, it is very important whether the copper wire rope is bound firmly on the lead wire.

In order to bind this piece of copper wire rope firmly to the lead wire, and the length of the current guide wire meets the requirements of safe operation, so as to avoid the accident that the arc cannot be extinguished or the binding lead wire falls off during the arc extinguishing process, it is necessary to standardize the lead wire binding process: First of all, the copper wire rope should be bound on the lead wire with no less than 5 buckles. The starting buckle is an 8-shaped buckle, followed by straight buckle and reverse buckle cross binding. This binding process is relatively cumbersome, takes a long time, and has low operating efficiency. Moreover, if the operation time in the electric field is long and the copper wire rope is not firmly grasped, serious accidents will occur.

Contents of the invention

The object of the present invention is to provide a live disconnect wire lead clamp device with simple operation, short working time, high safety and improved working efficiency according to the shortcomings of the prior art.

The purpose of the present invention is achieved by the following approach:

The main point of the structure of the lead wire clamp device for disconnecting live wires is that it includes a first clamp body and a second clamp body. The first clamp body is an inverted "T"-shaped structure with a through hole above it. A screw hole communicating with the through hole is provided, and a bolt is screwed into the screw hole from the outside to the inside, and the lower bottom is a semicircular arc groove; the second clamp body has a corresponding semicircular groove on the first clamp body. The semi-circular arc groove, after the two are combined, forms a circular hole. One shoulder side of the first clamp body and the second clamp body is a hinged member, and the other shoulder is equipped with a joint connecting the first clamp body and the second clamp body. of fasteners.

The through hole on the first clamp body is used for placing the copper wire rope, and the circular hole formed by combining the first clamp body and the second clamp body is used for connecting lead wires. The specific operation method is: pass the copper wire rope through the through hole on the first clamp body, screw on the bolt and screw it into the through hole, lock to fix the copper wire rope, and loosen the connection between the first clamp body and the second clamp body Specifically, to install the fastener, open the clamp, place the lead wire in the semicircular groove of the first clamp body or the second clamp body, then put the two clamp bodies together, install the fastener, and complete the connection.

In this way, the connection between the copper wire rope and the lead wire can be realized only by using the above-mentioned wire clamp device, and the wire clamp is a hardware conductor, which can realize the electrical conduction between the copper wire rope and the lead wire. The wire clip adopts a one-through-one-clip structure, and the copper wire rope can be installed on the wire clip before the equipotential operator enters the electric field, and then connected to the lead wire after entering the electric field, which shortens the work of the operator in the electric field time, the safety of personnel is guaranteed, and the working efficiency is improved. The wire clamp device of the present invention is simple in structure, easy to operate, reliable in connection, and has a strong practical effect. Moreover, in the process of use, in order to adapt to the operation requirements, when the length of the copper wire rope needs to be adjusted, it is only necessary to loosen the bolts, which is easy to operate and does not affect the connection relationship of other parts.

The present invention can further specifically be:

It also includes an arc-shaped metal washer, which is installed in the through hole on the first clamp body and connected to the end of the bolt.

In order to prevent the copper wire rope from being damaged by the extrusion force generated by the bolt locking, an arc-shaped metal washer is added, and the extrusion force on the copper wire rope will be distributed in the arc as the bolt is locked. On the metal sheet, reduce the damage to the copper wire rope.

It also includes a connecting part installed on the top end of the first clip body.

The connecting portion is used to connect the insulating stay cord, so that the operator can operate the insulating stay cord at any time, or operate the wire clamp through the insulating stay cord, adjust the position of the wire clamp and so on.

The above-mentioned connecting part is a kind of ring. This is convenient for binding the insulating stay rope on the ring, which is both firm and simple.

In summary, the present invention provides a live wire lead wire clamp device, which adopts a one-through-one-clamp structure, and the copper wire rope can be installed on the wire clamp before the equipotential operator enters the electric field, and after entering the electric field Then connect to the lead wire, thus shortening the working time of the operator in the electric field, ensuring the safety of the personnel, and improving the working efficiency. The wire clamp device of the present invention has simple structure, convenient operation, reliable connection, and strong Practical effect. Moreover, in the process of use, in order to adapt to the operation requirements, when the length of the copper wire rope needs to be adjusted, it is only necessary to loosen the bolts, which is easy to operate and does not affect the connection relationship of other parts.

Description of drawings

Fig. 1 is a schematic structural view of the lead wire clip device for disconnecting live wires in the preferred embodiment 1 of the present invention.

FIG. 2 is a top view of FIG. 1 .

Figure 3 shows the left side view of Figure 1.

The present invention will be further described below in conjunction with the examples.

specific embodiment

Best practice:

With reference to accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, live wire disconnecting lead wire clamping device includes first clamping body 1 and second clamping body 2; The first clamping body 1 is an inverted "T" shape structure, and There is a through hole 3, and the outer wall of the through hole 2 is provided with two screw holes communicating with the through hole 3, and the bolts 4 are screwed in from the outside to the inside in the two screw holes, and the lower bottom has a semi-arc shape Slot; the second clamp body 2 has a semi-circular arc groove corresponding to the semi-circular arc groove on the first clamp body, and after the two are merged, a circular hole 5 is formed, and the through hole 3 is a smaller hole, circular The hole 5 is a larger hole; one shoulder side of the first clamp body 1 and the second clamp body 2 is a hinge member 6, and a fastener connecting the first clamp body 1 and the second clamp body 2 is installed on the other shoulder - Two fastening bolts 7. The method of use has been described in the summary of the invention, and will not be repeated here.

An arc-shaped metal washer (not shown in the figure) is installed on the end of the bolt 4 located in the through hole 3, and a ring 8 is installed on the top end side of the first clamp body 1 for connecting an insulating stay rope .

The parts not described in the present invention are the same as the prior art.

Claims (3)

1. charged disconnecting wire lead clamp device, it is characterized in that, include the first clamp body and the second clamp body, first clamp body is inverse-T-shaped structure, top has a through hole, the lateral wall of this through hole is provided with the screw be communicated with this through hole, screws in bolt from outside to inside in screw, first clamp body lower bottom part is semicircular arc groove

Described charged disconnecting wire lead clamp device also includes a curved metal pad, and this curved metal pad is arranged in the through hole on the first clamp body, is connected to bolt end; Second clamp body have the half-arc groove corresponding with the half-arc groove on the first clamp body, after the two merges, form a circular port, a shoulder side of the first clamp body and the second clamp body is articulated element, opposite side shoulder is provided with the securing member of connection first clamp body and the second clamp body;

Through hole on first clamp body is for placing copper rope, first clamp body and the second clamp body are combined the circular port of formation for connecting lead wire: by copper rope through the through hole on the first clamp body, screw on bolt to precession in through hole, locking, to fix copper rope, is unclamped the securing member on connection first clamp body and the second clamp body, is opened wire clamp, lead placement in the half-arc groove of the first clamp body or the second clamp body, then by two clamp bodies altogether, first-class securing member, completes connection.

2. charged disconnecting wire lead clamp device according to claim 1, is characterized in that, also includes a junction, and it is arranged in the first clamp body top ends.

3. charged disconnecting wire lead clamp device according to claim 2, is characterized in that, described connecting portion is a kind of annulus.