CN106129666A - A kind of earthing clamp device - Google Patents

Abstract

The invention discloses a grounding wire clamp device. A pull cord connecting two wire clamp clamp bodies is arranged at the rear end of the wire clamp body, and an operating rod with an inverted cone cavity structure inside is connected with a hook at the top. The operating lever realizes the steady clamping of the grounding wire clamp on the transmission line. The whole process avoids the hard collision between the wire clamp and the transmission line. The traditional method uses the pull wire to cause scratches or broken strands on the transmission line. Its operation method is simple and convenient, and the process of hooking and removing the whole grounding clamp is stable and controllable, which effectively guarantees the safety of the transmission line.

Description

A grounding clamp device

technical field

The invention relates to the technical field of power grounding clamps, in particular to a grounding clamp device that can effectively avoid damage to power transmission cables.

Background technique

When the transmission line is powered off, safety measures must first be taken for the maintenance line. The main work is to conduct electrical inspection and hang the ground wire. At present, the ground wire mounted on the tower mainly adopts the touch-type spring release ground wire clamp. Attach a thin insulating cord to the end of the ground clamp. The staff opens the wire clamp in advance, hangs it above the conductor with the insulated rope at the tail, and then loosens the insulation rope downwards, so that the ground wire clamps itself and the annealed copper wire connected to it, and falls rapidly under the gravity of itself and the annealed copper wire connected to it. After contact, the touch-type support piece of the grounding wire clamp is released, the opening of the grounding wire clamp is closed, and the wire is clamped to complete the entire installation process. Because the distance between the wire and the cross arm is 2-3 meters, there is a soft copper wire connected to one side of the grounding clamp (the center of gravity will shift), and under the influence of natural wind, the grounding clamp cannot always maintain a vertical downward direction, so the installation It is difficult and affects work efficiency. In addition, when this kind of grounding clamp is installed, it is necessary to touch the transmission line through the release. When removing it, the clamp is pulled off the transmission line by pulling the pull wire or the grounding wire, which often causes scratches and other damage to the wire.

For example, the invention patent with the application number 201120560411.8 authorized on October 3, 2012 discloses a self-locking wire terminal grounding clamp, and the patent application with the publication number CN 203398349U authorized on January 15, 2014 provides a All there is above-mentioned defective in a kind of ground wire installation auxiliary device.

Contents of the invention

The object of the present invention is to provide a grounding wire clamp device, by using the grounding wire clamping device, the occurrence of damage to the transmission line during installation and removal can be effectively avoided.

Another object of the present invention is to provide a working method using the above-mentioned grounding clamp device.

The technical solution adopted to realize the purpose of the present invention is: a grounding clamp device, including a clamp body and an operating mechanism, the clamp body includes a clamp body hinged by a rotating shaft and a strong spring, the clamp The front part of the clamp body is provided with a groove for clamping the transmission line, and the tail end of the clamp body is provided with a pull rope connected between the clamp bodies. The operating mechanism includes two insulating operating rods, one of which is The top end is provided with a hook structure, and the other operating rod has a metal screw at the top, and a cylinder with an inverted cone cavity structure inside is provided through the metal screw, and the insulating operation rod with a hook at the end is connected from the cylinder The small mouth end penetrates and passes through the large mouth end. Bolt holes are provided on one side of the cylinder, and the cylinder is connected to the metal screw through the bolt holes. The operating rod is a telescopic operating rod, including an inner rod and an outer rod. tube, and the outer tube is provided with compression bolts.

A graphite layer is arranged in the groove of the clamp body.

The tail of the clamp body is provided with a slope structure matching the cavity structure of the inverted cone.

An insulating extension rod is connected to the lower end of the operating rod, one end of the insulating extension rod is a screw structure, and the other end is a bolt hole structure.

The hook structure at the top of the operating rod is a groove structure opened on the side of the top of the operating rod.

A working method of the above-mentioned grounding clamp device, comprising the following steps:

1) According to the distance between the operator and the transmission line during the specific operation, as well as the length of the operating rod and the extension rod, different numbers of insulating extension rods are prepared. The rope transmits the grounding wire clamp device and the electric test sensor to the work cross arm, and the cross arm operator assembles the operating rod and the extension rod, first uses the insulated operating rod with a metal screw at the end, and connects the electric test sensor to the metal screw Electricity inspection of the transmission line to be repaired to ensure that the line has no voltage;

2) After the electrical inspection is completed, remove the electrical inspection sensor and replace the cylinder with the grounding wire clamp device, take another insulating operating rod with a hook at the end and penetrate it from the small mouth of the cylinder, and insert it from the large mouth. Put it out, make the opening of the hook on the operating rod upward, hang the drawstring of the grounding wire clamp in the hook, pull the operating rod with the hook, so that the grounding wire clip enters the cavity of the inverted cone inside the barrel, to avoid The grounding clip falls off;

3) Keep the grounding wire clip stable by controlling the two operating levers, and send the grounding wire clip to the power transmission wire, then keep the operating rod connected to the cylinder stable and pull the operating rod with a hook to open the grounding wire clamp. And put the wire in the groove of the grounding wire clamp, and then slowly loosen the operating lever with the hook, so that the grounding wire clamp is closed smoothly, that is, the safe connection between the grounding wire clamp and the transmission line is realized, and the operating rod with the hook extends forward Out of the barrel, make the pull rope out of the hook, and the operating rod and the barrel can be retracted together;

4) After the inspection and maintenance work is completed, remove the grounding wire clip, and connect the operating rod to the cylinder body as in step 2). Keep the operating rod connected to the cylinder stable and pull the operating rod with the hook back hard to open the grounding wire clamp and realize the removal of the grounding wire clamp.

In the present invention, a pull cord connecting two clamp bodies is arranged at the rear end of the clamp body, and an inverted cone cavity structure is arranged on the top of an insulating operating rod. When in use, the clamp body is placed in the cavity structure, and the other An insulated operating rod with a hook structure at the top penetrates into the cavity structure of the inverted cone from the bottom of the barrel, and the hook is used to hook the pull rope, and the wire clamp can be opened by pulling the pull rope, and the wire clamp is realized by controlling the operating rod. The opening and closing of the grounding wire clip can be realized smoothly on the transmission line. The whole process avoids the hard collision between the wire clip and the transmission line. , to avoid the traditional method of pulling the wire to cause the transmission line to be scratched or broken. As an optimized solution, by setting a graphite layer in the groove of the clip body, it can be simply inlaid. Graphite can effectively protect the safety of the transmission line due to its soft texture, and graphite has good conductivity, which can effectively improve the connection between the clamp and the transmission line. Good contact, improve the conductivity of the grounding wire, the grounding wire clamp device operation method of the present invention is simple and convenient, the mounting and removal process of the whole grounding wire clamp is stable and controllable, effectively ensuring the safety of the transmission line.

Description of drawings

Below in conjunction with accompanying drawing, the present invention will be further described:

Fig. 1 is the structural representation when wire clip of the present invention is closed;

Fig. 2 is a structural schematic diagram when the wire clip of the present invention is opened;

Fig. 3 is a schematic structural view of the operating rod hook of the present invention.

detailed description

As shown in Figure 1, Figure 2, and Figure 3:

Embodiment one

A grounding clamp device, including a clamp body and an operating mechanism, one side of the clamp body is welded or crimped with a ground wire 7 through bolts, and the clamp body includes a clamp body 6 hinged by a rotating shaft 4 and a strong spring , the front part of the clamp body 6 is provided with a groove for clamping the transmission line, a slot is provided in the groove, and the graphite layer 5 is snapped into the groove through the slot; the tail of the clamp body is The end is provided with a pull cord 3 connected between the clamp bodies 6. The operating mechanism includes two insulating operating rods 1, one of which is provided with a hook structure 8 at the top of the operating rod 1, and a metal screw 11 at the top of the other operating rod 1. , and the metal screw 11 is provided with a cylindrical member 2 with an inverted cone cavity structure inside, and a bolt hole is provided on one side of the cylindrical member 2, and the cylindrical member 2 is threaded with the metal screw 11 through the bolt hole connect. The lower end of the operating rod 1 is connected with an insulating extension rod 10. One end of the insulating extension rod 10 is a screw structure, and the other end is a bolt hole structure.

Embodiment two

The difference between this embodiment and the first embodiment lies in that: the tail of the clamp body is provided with a slope structure 9 matching the cavity structure of the inverted cone. The operating rod 1 is a telescopic operating rod, including an inner rod and an outer tube. The outer tube is provided with a compression bolt, and the inner rod and the outer tube are reliably connected by the compression bolt through the outer tube wall to compress the inner rod. connect. The hook structure 8 at the top of the operating rod 1 is a groove structure opened on the side of the top of the operating rod 1 .

Embodiment Three

A method for performing operations using the grounding clamp device of the above-mentioned embodiment 1 or embodiment 2, comprising the following steps:

1) According to the distance between the operator and the transmission line during the specific operation, and the length of the operating rod 1 and the extension rod 10, different numbers of insulating extension rods 10 are prepared, and the staff arrives at the crossarm where the transmission line to be repaired is located on the tower , through the transfer rope, the grounding wire clamp device and the electric inspection inductor are transferred to the work cross arm. An insulating operating rod 1 is connected to an electric inspection inductor on its metal screw rod 11, and an electric inspection is carried out on the power transmission line to be repaired to ensure that the line has no voltage;

2) After the electric test is completed, remove the electric test sensor and replace the cylinder part 2 with the grounding wire clamp device, take another insulating operating rod 1 with a hook at the end and penetrate it from the small mouth end of the cylinder part 2, and Go out from the big mouth, make the opening of the hook on the operating rod 1 face upward, hang the pull rope 3 of the grounding wire clip in the hook, pull the operating rod 1 with the hook, and make the grounding wire clip enter the inverted cone inside the barrel In the body cavity, avoid the grounding clip from falling off;

3) Keep the ground wire clamp stable by controlling the two operating rods 1, and clamp the ground wire to the power transmission wire, then keep the operating rod 1 connected to the barrel 2 stable and pull the operating rod 1 with the hook firmly to connect the ground wire. Open the wire clamp, put the wire in the groove of the ground wire clamp, and then slowly loosen the operating lever 1 with the hook to make the ground wire clamp close smoothly, that is, to realize the safe connection between the ground wire clamp and the transmission line. The operating rod 1 protrudes forward from the cylinder 2, so that the pull rope 3 is detached from the hook, and the operating rod 1 and the cylinder 2 can be retracted together;

4) After the maintenance work is completed, remove the ground wire clamp, and connect the operating rod 1 and the cylinder body 2 with the installation method as in step 2). The operating rod 1 with the hook extends forward from the cylinder 2, and hooks the ground wire through the hook The drawstring 3 on the clip keeps the operating rod 1 connected to the barrel 2 stable and pulls the operating rod 1 with the hook back hard to open the grounding wire clamp and realize the removal of the grounding wire clamp.

The grounding clamp device of the present invention has simple structure, easy manufacture and low cost, and its operation method is simple and convenient. The whole process of attaching and removing the grounding clamp is stable and controllable, which effectively guarantees the safety of the transmission line.

Claims (6)

1. A grounding clamp device, comprising a clamp body and an operating mechanism, the clamp body comprising a clamp body hinged by a rotating shaft and a strong spring, characterized in that: the front part of the clamp body is provided with a Clamp the groove of the power transmission line, the tail end of the clamp body is provided with a pull rope connected between the clamp bodies, the operating mechanism includes two insulating operating rods, one of which is provided with a hook structure at the top of the operating rod, and the other There is a metal screw at the top of an operating rod, and a cylinder with an inverted cone cavity structure inside is provided through the metal screw, and an insulating operating rod with a hook at the end penetrates through the small mouth end of the cylinder, and from the There is a bolt hole on one side of the barrel, and the barrel is connected to the metal screw through the bolt hole. The operating rod is a telescopic operating rod, including an inner rod and an outer tube. Set with hold-down bolts. 2. The grounding clamp device according to claim 1, wherein a graphite layer is arranged in the groove of the clamp body. 3. The grounding clamp device according to claim 1, characterized in that: the rear part of the clamp body is provided with a slope structure matching the cavity structure of the inverted cone. 4. The grounding clamp device according to claim 1, 2 or 3, characterized in that: the lower end of the operating rod is connected with an insulating extension rod, one end of the insulating extension rod is a screw structure, and the other end is a bolt hole structure. 5 . The grounding clamp device according to claim 4 , wherein the hook structure at the top of the operating rod is a groove structure opened at the side of the top of the operating rod. 6 . 6. A working method using the grounding clamp device according to any one of the above claims, comprising the following steps: 1) According to the distance between the operator and the transmission line during the specific operation, as well as the length of the operating rod and the extension rod, different numbers of insulating extension rods are prepared. The rope transmits the grounding wire clamp device and the electric test sensor to the work cross arm, and the cross arm operator assembles the operating rod and the extension rod, first uses the insulated operating rod with a metal screw at the end, and connects the electric test sensor to the metal screw Electricity inspection of the transmission line to be repaired to ensure that the line has no voltage; 2) After the electrical inspection is completed, remove the electrical inspection sensor and replace the cylinder with the grounding wire clamp device, take another insulating operating rod with a hook at the end and penetrate it from the small mouth of the cylinder, and insert it from the large mouth. Put it out, make the opening of the hook on the operating rod upward, hang the drawstring of the grounding wire clamp in the hook, pull the operating rod with the hook, so that the grounding wire clip enters the cavity of the inverted cone inside the barrel, to avoid The grounding clip falls off; 3) Keep the grounding wire clip stable by controlling the two operating levers, and send the grounding wire clip to the power transmission wire, then keep the operating rod connected to the cylinder stable and pull the operating rod with a hook to open the grounding wire clamp. And put the wire in the groove of the grounding wire clamp, and then slowly loosen the operating lever with the hook, so that the grounding wire clamp is closed smoothly, that is, the safe connection between the grounding wire clamp and the transmission line is realized, and the operating rod with the hook extends forward Out of the barrel, make the pull rope out of the hook, and the operating rod and the barrel can be retracted together; 4) After the inspection and maintenance work is completed, remove the grounding wire clip, and connect the operating rod to the cylinder body as in step 2). Keep the operating rod connected to the cylinder stable and pull the operating rod with the hook back hard to open the grounding wire clamp and realize the removal of the grounding wire clamp.