CN213484009U

CN213484009U - Earthing device for maintenance protection

Info

Publication number: CN213484009U
Application number: CN202023036784.3U
Authority: CN
Inventors: 张健; 陈鹏; 刘洋; 李博
Original assignee: China Nuclear Tianjin Machinery Co ltd
Current assignee: China Nuclear Tianjin Machinery Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-06-18
Anticipated expiration: 2030-12-16

Abstract

The utility model mainly discloses a grounding device for maintenance protection, which comprises a protection terminal, wherein the protection terminal is connected with the grounding device through a grounding cable; the protection terminal includes the fastener, the outside of fastener is provided with U type casing, the internally mounted of U type casing have with electric conductor fixed connection's jump ring, the outside fixed mounting of fastener has the terminal, the lower fixedly connected with action bars of fastener, the other end swing joint handle of action bars earthing device includes the wiring board, the wiring board is connected with the terminal through ground connection cable, wiring board fixedly connected with ground rod. The utility model discloses a rational in infrastructure, the ground connection cable is convenient for dismantle with protection terminal and earthing device and is connected, has saved the time that the construction was prepared. And simultaneously, the utility model discloses a grounding device can insert ground fast, further saves maintenance duration, improves work efficiency.

Description

Earthing device for maintenance protection

Technical Field

The utility model relates to an overhaul protection apparatus technical field, especially an overhaul earthing device for protection.

Background

Electric power is one of the most important energy sources in the modern society, and the application range of the electric power is wide. In order to use the electrical energy source, associated electrical equipment and wiring are thus provided. Under the premise of wide-range use, and dependence of people on electric energy, maintenance of electric equipment and lines also becomes very important. The line maintenance refers to the work of the power transmission line aiming at eliminating defects, improving the health level of equipment, preventing accidents and ensuring the safe operation of the line according to the problems discovered by inspection, detection and tests.

At present, the requirement on the power supply stability of high-voltage power supply equipment or low-voltage power supply equipment is higher, and the requirement of more and more customers for continuous stable power supply can be met. However, in routine maintenance of the power supply equipment, the power supply equipment or the power consumption equipment needs to be overhauled in a power failure mode, and when the working space is relatively small, the equipment nearby or adjacent equipment to be overhauled is in a live running mode, or mistaken power transmission is caused by mistaken switching-on misoperation, so that certain influence is caused on the overhauling safety.

There are patents: CN 207069436U discloses safety device is overhauld to circuit, including backup pad, support column, first staple bolt and link, first staple bolt is all installed at the both ends of backup pad bottom, the one end of first staple bolt articulates in the backup pad bottom, and the other end of first staple bolt passes through the axle sheath and fixes, the intermediate position department on backup pad top installs the support column, and installs the cuff on the support column, the cuff is connected with the one end of link, and the other end of link installs the second staple bolt, the fixed block is all installed to the both sides of second staple bolt and link, the one end of electrically conductive connecting block and the cable core contact of cable conductor, and the other end of electrically conductive connecting block passes through the wire and is connected with the earthing rod. The implementation of this scheme needs to connect earth connection or earthing device, can not carry out effectual protection under the condition of not having the earth terminal in outdoor construction.

There are patents: CN 203800493U discloses a safety protection device for circuit repair, which comprises a cable end fixing part, a grounding pin and a connecting part for electrically connecting the grounding pin with a cable fixed by the cable end fixing part; the connecting part comprises a bracket fixed on the fixed part, a rotating frame hinged on the bracket, a conductive connecting block fixed on the rotating frame in an insulating way, and a torsional spring which is arranged on a hinge shaft between the rotating frame and the bracket and is used for providing elasticity for the rotating frame so that the conductive connecting block is elastically pressed on the cable core part; the conductive connecting block is electrically connected with the grounding pin. The protection device is complex in structure and difficult to operate, the connection operation of the wire clamp and the grounding device is complex, the maintenance time is greatly wasted, and the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

To the not enough among the above-mentioned prior art, the utility model provides an overhaul earthing device for protection, its is rational in infrastructure, and the earthing cable is convenient for dismantle with protection terminal and earthing device and is connected, has saved the time that the construction was prepared. And simultaneously, the utility model discloses a grounding device can insert ground fast, further saves maintenance duration, improves work efficiency.

The utility model discloses a realize according to following technical scheme:

the grounding device for maintenance protection comprises a protection terminal, wherein the protection terminal is connected with the grounding device through a grounding cable;

the protection terminal comprises a wire clamp, a U-shaped shell is arranged outside the wire clamp, a clamp spring fixedly connected with the electric conductor is arranged inside the U-shaped shell, a binding post is fixedly arranged outside the wire clamp, the lower end of the wire clamp is fixedly connected with an operating rod, and the other end of the operating rod is movably connected with a handle;

the grounding device comprises a wiring board, the wiring board is connected with a wiring terminal through a grounding cable, and a grounding stick is fixedly connected with the wiring board.

Preferably, the wiring board is a single layer, and the single layer wiring board is inserted into the slot at the upper end of the ground rod.

Preferably, the wiring board is two layers, the two layers of wiring boards are sleeved outside the grounding stick, and the single layer of wiring board is inserted into the slot at the upper end of the grounding stick.

Preferably, the grounding stick is vertically installed with the wiring board, and a graduated scale which is convenient for reading the depth of the ground is arranged on the outer wall of the grounding stick.

Preferably, one end of the grounding stick, which is far away from the wiring board, is provided with an internal thread, and a conical head or a round head which is conveniently inserted into the ground is spirally arranged in the internal thread.

Preferably, the wiring board is provided with a screw hole, the screw hole is in threaded connection with a wiring bolt, and the grounding cable is fixedly installed on the wiring board through the wiring bolt.

Preferably, the diameter of the handle is larger than that of the operating rod, and the handle is of a hollow structure and is sleeved on the operating rod.

Preferably, the operating rod adopts a telescopic rod, and the surface of the handle is wrapped with an insulating rubber layer.

Preferably, the auxiliary wing is clamped outside the ground rod.

The utility model has the advantages that:

this overhaul earthing device for protection is rational in infrastructure, and the earthing cable is convenient for dismantle with protection terminal and earthing device and is connected, has saved the time of construction preparation. And simultaneously, the utility model discloses a grounding device can insert ground fast, further saves maintenance duration, improves work efficiency, and protection terminal sets up action bars and handle, has also increased operational safety.

Drawings

Fig. 1 is a schematic structural view of the grounding device for maintenance protection provided by the present invention;

fig. 2 is a schematic structural diagram of the protection terminal provided by the present invention;

fig. 3 is a schematic structural diagram of the grounding device provided by the present invention;

fig. 4 is a schematic structural diagram of a double-layer wiring board provided by the present invention.

In the figure:

1. wire clamps; 2. a binding post; 3. an operating lever; 4. a handle; 5. a ground cable; 6. a wiring bolt; 7. a wiring board; 8. a ground rod.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The present invention is described in detail below with reference to the accompanying drawings 1-4:

above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Example 1

A grounding device for maintenance protection comprises a protection terminal, wherein the protection terminal is connected with a grounding device through a grounding cable 5; the protection terminal comprises a wire clamp 1, a U-shaped shell is arranged outside the wire clamp 1, a clamp spring fixedly connected with a conductor is arranged inside the U-shaped shell, a binding post 2 is fixedly arranged outside the wire clamp 1, the lower end of the wire clamp 1 is fixedly connected with an operating rod 3, and the other end of the operating rod 3 is movably connected with a handle 4; the grounding device comprises a wiring board 7, the wiring board 7 is connected with the wiring terminal 2 through a grounding cable 5, and a grounding stick 8 is fixedly connected to the wiring board 7.

The working principle is as follows: in this technical scheme, protection terminal is connected with earthing device through ground connection cable 5, and protection terminal uses fastener 1, and earthing device uses wiring board 7, and wiring board 7 fixed connection earthing rod 8, 5 termination of ground connection cable are on fastener 1, and the other termination is on wiring board 7, and earthing rod 8 inserts in the ground. When misoperation occurs, current is guided to the ground through the wiring board 7 and the grounding rod 8, so that the conductive loop is tripped, and electric shock accidents are avoided.

In this embodiment, the operating rod 3 is fixedly connected in the wire clamp 1, the operating rod 3 is movably connected with the handle 4, and the operating rod 3 increases the operation safety and prevents the wire leakage of the grounding cable 5 from being touched carelessly. Meanwhile, the handle 4 is connected to the operating rod 3, safety can be further improved, meanwhile, the movable connecting structure is convenient for replacing the handle 4, and the handle 4 can be replaced with a new handle 4 in time when being dirty or worn.

Furthermore, it is also considered in this embodiment that the wiring board 7 has two layers, the two layers of wiring board 7 are sleeved outside the ground rod 8, and the ground rod 8 is fixedly connected between the two layers of wiring board 7. The connection mode can further fix the connection between the grounding stick 8 and the wiring boards 7, and the wiring cables 5 are clamped between the two wiring boards 7, so that the metal wires of the grounding cables 5 are prevented from leaking to cause electric shock hidden troubles.

The wiring board 7 can also be a single-layer structure, the upper end of the grounding stick 8 is provided with a slot matched with the wiring board 7, and the single-layer wiring board 7 is inserted into the slot at the upper end of the grounding stick 8.

Furthermore, in the present embodiment, it is considered that the ground rod 8 is perpendicular to the terminal block 7, and the area used between the terminal block 7 and the ground rod 8 is minimal when the ground rod is perpendicular, and the ground rod does not occupy too much space when being constructed on site. Be provided with the scale that conveniently reads and insert the underground degree of depth on earthing rod 8's the outer wall, through the position of observing the scale, can be detailed grasp earthing rod 8 inserts the underground degree of depth to earthing rod 8 can effectual ground connection, under the condition that has the electric current, in time imports the underground with the electric current.

Furthermore, the ground rod 8 is fixedly connected to the middle of the wiring board 7, and the ground rod 8 is perpendicular to the wiring board 7 and is positioned at the middle of the wiring board 7, so that the ground rod 8 can be kept in a stable balanced state when inserted into the ground.

Furthermore, the one end that wiring board 7 was kept away from to ground rod 8 is provided with the internal thread, the spiral is installed and is conveniently inserted underground cone or circular head in the internal thread, and ground can be pricked fast to ground rod 8 to the setting of cone, and convenient operation further saves maintenance duration, improves work efficiency. Under the condition of not using, pull down the conical head, install round head spiral on grounded stick 8, the effectual stab problem of taking the in-process emergence of having avoided.

Example 2

On the basis of embodiment 1, it can be considered in this embodiment that the wiring board 7 is provided with a screw hole, the screw hole is connected with a wiring bolt 6 by screw thread, the wiring bolt 6 is connected with one end of the grounding cable 5, and the other end of the grounding cable 5 is connected with the wire clamp 1.

When the grounding cable 5 is fixed to the terminal block 7 by setting the terminal bolt 6, the time required for connecting the two can be reduced. When the wiring boards 7 are two-layer, both the two-layer wiring boards have screw holes, and the screw holes correspond to the screw holes. The terminal bolts 6 are usually passed through the screw holes of the two-layer terminal block 7, but are not tightened. When the grounding cable fixing device is used, the metal wire head of the grounding cable 5 only needs to be inserted between the two layers of wiring boards 7, and the wiring bolt 6 is screwed, so that the operation is convenient, a large amount of working time and labor are saved, the connection strength is high, the safety is high, and the wire head of the grounding cable 5 is prevented from leaking from the wiring boards 7 to cause electric shock hidden trouble.

Furthermore, it can be considered in this embodiment that a screw hole is formed at one end of the wire clamp 1, the screw hole is connected with the terminal 2 through a screw thread, and the terminal 2 is connected with the grounding cable 5.

The mode through terminal 2 is fixed in on fastener 1 with earth connection cable 5, only need during the use with earth connection cable 5 screw up on fastener 1 through ground connection post 2 can. This connection can further save working time.

Example 3

On the basis of embodiments 1 and 2, it can be considered in this embodiment that the diameter of the handle 4 is larger than that of the operating rod 3, and the handle 4 is a hollow structure and is sleeved on the operating rod 3. The sleeved connection structure is convenient and quick for replacing the handle 4, and can be disassembled or assembled on site according to the site construction condition, thereby increasing the operation safety and saving the time.

Further, it is also considered in the present embodiment that the surface of the grip 4 is provided with an insulating rubber layer. Rubber possesses good insulating effect, sets up it on handle 4, can further isolated electric current, increases the security.

Furthermore, the auxiliary wing is clamped outside the grounding rod 8, and the auxiliary wing is arranged on the grounding rod 8, so that the auxiliary wing can be conveniently pressed, and the grounding rod 8 can be inserted underground.

The above embodiments are described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides an overhaul earthing device for protection which characterized in that: the protection terminal is connected with a grounding device through a grounding cable (5);

the protection terminal comprises a wire clamp (1), a U-shaped shell is arranged outside the wire clamp (1), a clamp spring fixedly connected with a conductor is installed inside the U-shaped shell, a binding post (2) is fixedly installed outside the wire clamp (1), the lower end of the wire clamp (1) is fixedly connected with an operating rod (3), and the other end of the operating rod (3) is movably connected with a handle (4);

the grounding device comprises a wiring board (7), the wiring board (7) is connected with the wiring terminal (2) through a grounding cable (5), and the wiring board (7) is fixedly connected with a grounding stick (8).

2. The grounding device for overhaul protection according to claim 1, wherein: the wiring board (7) is a single layer, and the single layer wiring board (7) is inserted into the slot at the upper end of the grounding stick (8).

3. The grounding device for overhaul protection according to claim 1, wherein: the wiring board (7) is in two layers, and the two layers of wiring boards (7) are sleeved outside the grounding stick (8).

4. The grounding device for overhaul protection according to claim 2 or 3, wherein: the ground rod (8) and the wiring board (7) are vertically installed, and a graduated scale which is convenient for reading the depth of the ground rod (8) inserted into the ground is arranged on the outer wall of the ground rod.

5. The grounding device for overhaul protection according to claim 1, wherein: one end of the grounding stick (8) far away from the wiring board (7) is provided with an internal thread, and a conical head or a round head which is convenient to insert underground is spirally arranged in the internal thread.

6. The grounding device for overhaul protection according to claim 1, wherein: the wiring board (7) is provided with a screw hole, the screw hole is in threaded connection with a wiring bolt (6), and the grounding cable (5) is fixedly installed on the wiring board (7) through the wiring bolt (6).

7. The grounding device for overhaul protection according to claim 1, wherein: the diameter of the handle (4) is larger than that of the operating rod (3), and the handle (4) is of a hollow structure and is sleeved on the operating rod (3).

8. The grounding device for overhaul protection according to claim 7, wherein: the operating rod (3) adopts a telescopic rod, and the surface of the handle (4) is wrapped with an insulating rubber layer.

9. The grounding device for overhaul protection according to claim 1, wherein: auxiliary wings are clamped outside the grounding rod (8).