CN212497577U

CN212497577U - Low-voltage switch drawer cable clamp spring replacing device

Info

Publication number: CN212497577U
Application number: CN202021320909.2U
Authority: CN
Inventors: 武传; 张双强; 张雅文; 王昊; 徐广建; 黄巍华; 王雄辉; 郭鑫; 罗德志; 司旭东; 黄进伟; 杨亚松; 张睿
Original assignee: Jiangsu Nuclear Power Corp
Current assignee: Jiangsu Nuclear Power Corp
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-02-09
Anticipated expiration: 2030-07-08

Abstract

The utility model belongs to the technical field of the nuclear power station electrical maintenance, concretely relates to device is changed to low-voltage switch drawer cable jump ring, the device including the pincers body, handle and spring, wherein two pincers bodies respectively with two handle fixed connection, spring coupling is between two handles. The utility model avoids the increase of workload caused by the reconstruction of the cable primary loop plug connector on the spot of the worker, saves the cost, reduces the waste of materials, improves the working efficiency, and greatly improves the clamping force of the drawer primary loop plug connector after the replacement, so that the drawer primary loop plug connector meets the inspection standard; the spring is arranged at the position close to the handle, so that certain resilience force is ensured, and the elastic spring is convenient for workers to use and carry to a field for use.

Description

Low-voltage switch drawer cable clamp spring replacing device

Technical Field

The utility model belongs to the technical field of the nuclear power station electrical maintenance, concretely relates to device is changed to low-voltage switch drawer cable jump ring.

Background

Most of buses of a certain nuclear power station unit adopt low-voltage switch cabinet drawers with the height of more than 8E (1E is 25mm), and the following problems are found in the process of detecting the clamping force of primary loop plug connectors of the drawers: (1) most connectors of the primary circuit plug connectors of the drawers of 8E and above adopt MNS2.0 models, the qualified standard is 73N, but on-site detection finds that some cable primary circuit plug connectors cannot meet the detection standard due to long-term online use; (2) if the cable with insufficient clamping force of the primary loop plug connector of the switch drawer is replaced, a worker needs to modify a new cable, the length of the new cable is consistent with that of a field cable, and the joint of the new cable needs to be pressed again for treatment, so that the process is complex, time-consuming and labor-consuming. The inner space of the drawer is narrow, so that the operation is inconvenient during replacement; (3) if when the jump ring is changed to the cable that the primary circuit plug connector clamp force of switch drawer is not enough, because of not having specialized tool, can only use the long flat nose pincers to change usually, can't once only put new jump ring installation in place, and can't guarantee to change the clamp force of the back primary circuit plug connector.

Therefore, the cable clamp spring replacing device for the low-voltage switch drawer is needed to be provided for optimizing the processing work when the clamping force of the primary loop plug connector of the drawer with the large volume specification is insufficient, and the defects in the prior art are overcome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a device is changed to low voltage switch drawer cable jump ring not enough of above-mentioned prior art, in the course of the work, the staff can utilize this device to take off the old jump ring of drawer cable primary loop plug connector, and this device of reuse is installed new jump ring and is target in place can. The device avoids the work load increase caused by the work of transforming the cable on the site of the worker, crimping and the like, and reduces the material waste. The replacing device can improve the working efficiency, reduce the working time, and greatly improve the clamping force of the primary loop plug connector of the drawer after replacement, so that the primary loop plug connector of the drawer meets the inspection standard.

The technical scheme of the utility model is that:

the utility model provides a low voltage switch drawer cable jump ring changes device, the device includes pincers body, handle and spring, wherein two pincers bodies respectively with two handle fixed connection, spring coupling is between two handles.

The two forceps bodies are fixedly connected with the two handles through the handle supporting block.

The inside trompil of handle supporting shoe.

The handle and the spring are fixedly connected by a pin.

The surface of the clamp body is provided with a cylindrical bulge.

The clamp body is subjected to polishing anti-slip treatment and insulation treatment.

The tail part of the forceps body is in a ring shape.

The utility model discloses following beneficial effect has:

(1) the tail part of the clamp body of the utility model is provided with the circular ring type closed limiting part, which can avoid that the clamp spring of the primary loop plug connector deforms too much to cause the failure of the clamp spring effect and the clamping force of the new primary loop plug connector can not meet the inspection requirement due to overlarge force applied by the working personnel in the process of using the device;

(2) the utility model avoids the reformation of the cable primary loop plug connector on the site of the worker, increases the workload due to the compression joint, saves the cost and reduces the waste of materials; the whole clamp body is polished to prevent slipping, so that the phenomenon that a clamp spring and a clamp body clamp head slip when the clamp is used on site is prevented;

(3) the clamp body of the utility model is also insulated to prevent the risk of electric shock of the working personnel caused by the mistaken touch of the clamp body on the electrified part;

(4) the utility model can ensure that the new clamp spring is reliably connected with the cable head primary loop plug connector after replacement, thereby not only improving the working efficiency and reducing the working time, but also greatly improving the clamping force of the drawer primary loop plug connector after replacement, and ensuring that the drawer primary loop plug connector meets the inspection standard;

(5) the spring is arranged at the position of the tool close to the handle, so that certain resilience force is ensured, the tool is more humanized and is convenient for workers to use;

(6) the utility model has a circular convex part at both ends inside the chuck of the replacing device, and the clamp spring can play a role in fixing during replacing;

(7) the utility model discloses small in size, portable uses to the scene.

Drawings

Fig. 1 is a schematic structural view of a low-voltage switch drawer cable clamp spring replacing device provided by the present invention;

in the figure: 1-a clamp body; 2-a handle; 3-a spring; 4-a handle support block; 5-cylindrical protrusion.

Detailed Description

The invention is further described below with reference to the following examples and figures:

as shown in figure 1, the utility model provides a pair of low-voltage switch drawer cable jump ring changes device, the device include the pincers body 1, handle 2, spring 3, handle supporting shoe 4 and cylindrical arch 5.

Two pincers bodies 1 pass through handle supporting shoe 4 and pin fixed connection with two handles 2 respectively, and spring 3 is with pin fixed connection in the middle of two handles 2 to assemble into a whole with jump ring change device. The handle support block 4 is internally perforated.

The clamp body 1 is made of stainless steel.

The surface of the clamp body 1 is provided with a cylindrical protrusion 5, and the cylindrical protrusion 5 is firmly connected with the clamp spring, so that the clamp spring can be rapidly taken down and reinstalled.

The tail part of the forceps body 1 is in a ring shape.

The spring 3 has the function of a reset handle, so that the clamp spring can be conveniently installed or taken down by a worker by using the device for the next time.

A method for replacing a low-voltage switch drawer cable clamp spring replacing device comprises the following steps:

step 1, inserting a clamp body 1 into a clamp spring of a primary loop connector, pressing a handle 2, enlarging an opening of the clamp spring, taking the clamp spring down from the primary loop connector, loosening the handle 2, and taking the clamp spring down from the clamp body 1;

and 2, installing the new clamp spring on the clamp body 1, pressing the handle 2, then installing the new clamp spring on the primary loop connector plug, loosening the handle 2 after stable connection, and installing the clamp spring on the primary loop connector plug under the action of the force of the spring 3 to complete clamp spring replacement.

In the working process, the working personnel utilize the device to rapidly take down the old clamp spring of the primary circuit connector clip and then use the device to complete the installation of the new primary circuit connector clip spring.

The tail of the clamp body 1 is annular, so that the phenomenon that the clamp spring of the primary loop connector is deformed too much to cause the failure of the clamp spring due to overlarge force applied by a worker in the process of using the clamp device is avoided, and the clamping force of the new primary loop connector cannot meet the inspection requirement.

The device also avoids the increase of workload caused by the reconstruction of a new cable of the primary loop plug connector on the spot of workers, and reduces the waste of materials.

The whole clamp body 1 is subjected to polishing and anti-skidding treatment, so that the phenomenon of skidding of the clamp spring and the clamp body clamping head 5 when the clamp is used on site is prevented.

The clamp body 1 is also subjected to insulation treatment, so that the risk of electric shock of a worker caused when the clamp body 1 is mistakenly touched to touch a charged part is prevented.

The replacing device can improve the working efficiency, reduce the working time, and greatly improve the clamping force of the primary loop plug connector of the drawer after replacement, so that the primary loop plug connector of the drawer meets the inspection standard.

The present invention has been described in detail with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art. The present invention can adopt the prior art for the content which is not described in detail in the present invention.

Claims

1. The utility model provides a device is changed to low pressure switch drawer cable jump ring which characterized in that: the device comprises two forceps bodies (1), handles (2) and springs (3), wherein the two forceps bodies (1) are fixedly connected with the two handles (2) respectively, and the springs (3) are connected between the two handles (2).

2. The low-voltage switch drawer cable clamp spring replacing device of claim 1, wherein: the two forceps bodies (1) are fixedly connected with the two handles (2) through the handle supporting block (4).

3. The low-voltage switch drawer cable clamp spring replacing device of claim 2, wherein: the inside of the handle supporting block (4) is provided with a hole.

4. The low-voltage switch drawer cable clamp spring replacing device of claim 3, wherein: the handle (2) and the spring (3) are fixedly connected by a pin.

5. The low-voltage switch drawer cable clamp spring replacing device of claim 4, wherein: the surface of the clamp body (1) is provided with a cylindrical bulge (5).

6. The low-voltage switch drawer cable clamp spring replacing device of claim 5, wherein: the clamp body (1) is subjected to polishing anti-skid treatment and insulation treatment.

7. The low-voltage switch drawer cable clamp spring replacing device of claim 6, wherein: the tail of the forceps body (1) is in a ring shape.