CN215816448U

CN215816448U - Portable grounding wire

Info

Publication number: CN215816448U
Application number: CN202121445266.9U
Authority: CN
Inventors: 令狐建刚; 姚宁; 张�浩; 令狐瑞丽; 马慧波; 薛李俐; 刘跃斌
Original assignee: Yuncheng Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Current assignee: Yuncheng Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-02-11
Anticipated expiration: 2031-06-28

Abstract

The utility model provides a portable grounding wire, belonging to the technical field of disconnecting tools for high-voltage tests of power transformation equipment; the purpose is to solve the problem that induced electricity hurts people and personnel to repeatedly get on and off the equipment transmission tool; the technical scheme includes that the device comprises a hook, a connecting rod and a grounding clamp, wherein the connecting rod comprises a first rod body and a second rod body, the upper end of the first rod body is connected with the hook, the lower end of the first rod body is connected with the second rod body, two sides of the lower part of the second rod body are both transversely connected with a bolt, a steel strand is clamped between the two bolts, a channel for the steel strand to pass downwards is arranged in the second rod body, an insulating sleeve is arranged on the outer side of the steel strand, and the lower end of the steel strand is connected with the grounding clamp; the grounding device has the advantages of being simple, convenient, firm in grounding, safe, efficient, time-saving and labor-saving, and effectively avoiding the problem that induced electricity hurts people and personnel to repeatedly get on and off the device and transfer tools.

Description

Portable grounding wire

Technical Field

The utility model belongs to the technical field of disconnecting and connecting tools for high-voltage tests of power transformation equipment, and particularly relates to a portable grounding wire.

Background

When carrying out high-voltage test to equipment such as 110 kilovolts and above voltage transformer, current transformer, circuit breaker, transformer, the existence of response electricity can constitute certain threat to test personnel's life, and during the transfer means about the high altitude construction, the risk that has climbing equipment personnel repeatedly and fall moreover, wastes time and energy, complex operation, inefficiency.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the defects of the prior art, provides a portable grounding wire and aims to solve the problem that induced electricity hurts people and personnel repeatedly get on and off a device and transfer tools.

In order to achieve the above object, the present invention is achieved by the following technical solutions.

The utility model provides a portable earth connection, includes couple, connecting rod, ground clamp, the connecting rod includes the first body of rod and the second body of rod, the upper end of the first body of rod with the couple is connected, the lower extreme with the second body of rod is connected, the equal transverse connection in lower part both sides of the second body of rod has a bolt, two the centre gripping has steel strand wires between the bolt, be provided with the confession in the second body of rod the passageway that steel strand wires passed through downwards, steel strand wires's the outside is provided with insulating cover, steel strand wires's lower extreme with ground clamp is connected.

Further, a drum wheel is arranged on the outer side of the second rod body, the drum wheel is arranged below the bolt, a transverse hole is formed in the lower portion of the second rod body, and the steel strand is wound on the drum wheel through the transverse hole.

Further, the lower extreme of couple is provided with the external screw thread, the first body of rod is hollow, first body of rod inboard upper end is provided with the internal thread, the outside lower extreme of the first body of rod is provided with the external screw thread, the upper end outside of the second body of rod is provided with the internal thread, the couple with the first body of rod is connected through the screw thread, the first body of rod with the second body of rod is connected through the screw thread.

Furthermore, an L-shaped plate is arranged on the outer side of the first rod body, and the position of the L-shaped plate is matched with the lower edge of the bent part of the hook.

Compared with the prior art, the utility model has the following beneficial effects: the grounding device is simple, convenient, firm in grounding, safe, efficient, time-saving and labor-saving, and effectively avoids the problems that induced electricity hurts people and people repeatedly get on and off the device and transfer tools.

Drawings

The utility model is further described below with reference to the accompanying drawings;

fig. 1 is a front view of a portable earth wire in embodiment 1;

fig. 2 is a left side view of the portable earth wire in embodiment 1;

fig. 3 is a top view of the portable grounding wire in embodiment 1;

fig. 4 is a front view of the portable grounding cord in embodiment 2;

fig. 5 is a front view of the portable grounding cord in embodiment 3;

wherein, 1 is the couple, 2 is the connecting rod, 3 is the steel strand wires, 4 is the ground connection clamp, 5 is the first body of rod, 6 is the second body of rod, 7 is the bolt, 8 is the drum, and 9 is the L shaped plate.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the embodiments and the accompanying drawings, it is to be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention, and the technical solutions of the present invention are described in detail with reference to the embodiments and the accompanying drawings, but the scope of protection is not limited thereby.

Example 1

As shown in fig. 1-3, the portable grounding wire of the present invention comprises a hook 1, a connecting rod 2, and a grounding clip 4, wherein the hook 1 and the connecting rod 2 are made of stainless steel, an insulating protective sleeve can be disposed on the outer side of the connecting rod 2, external threads are disposed on the lower ends of the connecting rod 2 and the hook 1, internal threads are disposed on the upper end of the inner side of the connecting rod 2, the hook 1 is connected with the connecting rod 2 through threads, a nut is fixedly connected to both sides of the lower portion of the connecting rod 2, the central line of the nut is horizontal, a bolt 7 is connected to the nut, a steel strand 3 is clamped between the ends of the screws of the two bolts 7, a channel for the steel strand 3 to pass through is disposed in the connecting rod 2, an insulating sleeve is disposed on the outer side of the steel strand 3, and the lower end of the steel strand 3 is connected with the grounding clip 4.

Example 2

As shown in fig. 4, a further improvement is made on the basis of embodiment 1, which is different from embodiment 1 in that a drum 8 is arranged on the outer side of the second rod body 6, and the drum 8 and the hook 1 are located on the same side of the connecting rod 2, so that the hook 1 can be suspended stably on the wire to a certain extent, the drum 8 is arranged below the bolt 7, a transverse hole is formed in the lower portion of the second rod body 6, the steel strand 3 is wound on the drum 8 through the transverse hole, therefore, the upper end of the steel strand 3 is clamped between the two bolts 7, the steel strand 3 extends downwards from between the two bolts 7, the lower end of the steel strand 3 is connected with the grounding clamp 4 through the drum 8, and the steel strand 3 can be wound and unwound through the drum 8, so that the length of the steel strand 3 is increased, thereby adapting to the operation under different conditions, and being convenient and fast.

Couple 1 is threaded connection with the first body of rod 5, and the first body of rod 5 is threaded connection with the second body of rod 6, and consequently connecting rod 2 can reach flexible purpose through the length of the first body of rod 5 in the second body of rod 6 of adjustment to reduce shared space when idle, make the handle have longer length when high altitude construction, convenient operation.

Example 3

As shown in fig. 5, a further improvement is made on the basis of embodiment 2, which is different from embodiment 2 in that an L-shaped plate 9 is arranged outside the first rod 5, the position of the L-shaped plate 9 is adapted to the lower edge of the downward bent portion of the hook 1, specifically, the L-shaped plate 9 comprises a horizontal plate and a vertical plate, the horizontal plate is connected with the first rod 5, the vertical plate corresponds to the downward bent portion of the hook 1, when in use, after the hook 1 is hung on a wire of test equipment, the first rod body 5 is rotated to enable the first rod body 5 to rotate relative to the hook 1 until the vertical plate is aligned with the lower edge of the downward bent part of the hook 1 so as to prevent the wire from being released from the hook 1, when the hook 1 needs to be taken down from the wire, the first rod body 5 is rotated in the opposite direction until the vertical plate is staggered with the lower edge of the downward bent part of the hook 1, so that the wire can be conveniently taken off from the hook 1.

The hook 1 is made of stainless steel, one end of the hook is used for fastening the steel strand 3, the other end of the hook is used for up-and-down transferring tools when the tester works at a high place, so that the device is effectively prevented from being repeatedly climbed by the personnel, various risks such as falling of the personnel in the operation process are further reduced, when the hook is used, the hook 1 faces downwards, the purpose of transferring the tools to the high place for operation is facilitated, and the other situation is that the hook 1 faces upwards and is hung on a wire of the device, and the purpose of grounding is realized; the steel strand 3 is wrapped by a sheath with moderate hardness, namely an insulating sleeve, the sheath has high insulating strength, is not easy to deform and durable, and the length of the steel strand 3 is manufactured according to the universal installation height of the power transformation equipment, so that the steel strand is light, moderate and convenient to carry; the grounding clamp 4 is tightly connected with the lower end of the steel strand 3, the grounding clamp 4 is changeable in shape and high in adaptation degree, can be widely applied to various test places, and is small in contact resistance when reliably grounded, so that the induction electricity threat can be effectively avoided in the process of disconnecting and connecting the test personnel, and the working efficiency and the equipment safety can be improved.

The multifunctional portable grounding wire is used as an auxiliary tool in the high-voltage test process of equipment such as a voltage transformer, a current transformer, a circuit breaker, a transformer and the like of 110 kilovolt or more, and has wide application and remarkable effect. When the device is used, the end 1 of the hook can be used for transferring tools up and down from a high place, so that the device is prevented from being repeatedly climbed by a tester, and the falling risk of the tester is reduced; the earthing terminal can connect the high ground connection of various adaptation degree and press from both sides 4, ensures the reliable effective ground connection of equipment, prevents that the response electricity from hindering the people, has promoted work efficiency, shortens the power off time, guarantee personnel life safety.

The high-voltage testing device is used as an auxiliary tool in the high-voltage testing process of equipment such as a voltage transformer, a current transformer, a circuit breaker, a transformer and the like of 110 kilovolt or more, is simple and convenient to use, safe, economical, time-saving and labor-saving, and effectively avoids the problems that induced electricity hurts people and people repeatedly get on and off the equipment and transfer tools.

While the utility model has been described in further detail with reference to specific preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a portable earth connection, its characterized in that, presss from both sides including couple, connecting rod, ground connection, the connecting rod includes the first body of rod and the second body of rod, the upper end of the first body of rod with the couple is connected, the lower extreme with the second body of rod is connected, the equal transverse connection in lower part both sides of the second body of rod has a bolt, two the clamp has steel strand wires between the bolt, be provided with the confession in the second body of rod the passageway that steel strand wires passed through downwards, steel strand wires's the outside is provided with insulating cover, steel strand wires's lower extreme with the ground connection presss from both sides and is connected.

2. The portable grounding wire of claim 1, wherein a drum is disposed outside the second rod, the drum is disposed below the bolt, a transverse hole is disposed at a lower portion of the second rod, and the steel strand is wound on the drum through the transverse hole.

3. The portable grounding wire as claimed in claim 1, wherein the hook has an external thread at a lower end thereof, the first rod is hollow, an internal thread is provided at an upper end of an inner side of the first rod, an external thread is provided at a lower end of an outer side of the first rod, an internal thread is provided at an outer side of an upper end of the second rod, the hook is connected to the first rod by a thread, and the first rod is connected to the second rod by a thread.

4. The portable grounding wire as in claim 3, wherein an L-shaped plate is disposed outside the first rod, and the position of the L-shaped plate is adapted to the lower edge of the curved portion of the hook.