CN202856236U

CN202856236U - Pull-out device for electric grounding bar

Info

Publication number: CN202856236U
Application number: CN 201220453158
Authority: CN
Inventors: 董祥涛; 孙青�
Original assignee: State Grid Corp of China SGCC; State Grid Hebei Electric Power Co Ltd; Cangzhou Power Supply Co of State Grid Hebei Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Hebei Electric Power Co Ltd; Cangzhou Power Supply Co of State Grid Hebei Electric Power Co Ltd
Priority date: 2012-09-07
Filing date: 2012-09-07
Publication date: 2013-04-03
Anticipated expiration: 2022-09-07

Abstract

The utility model discloses a pull-out device for an electric grounding bar to solve the problem of dismounting a temporary grounding bar. The pull-out device comprises a hydraulic jack, a clamp pate mounting seat, a clamp pate, a pincerlike clamp and a base support body; the hydraulic jack is fixed on the base support body; a support rod and the snap-gauge mounting seat are fixedly assembled; the clamp pate is fixed on the clamp pate mounting seat; the pincerlike clamp and the clamp pate are assembled; a jaw part of the pincerlike clamp is matched with the grounding bar, and the base support body is fixed on a horizontal ground. According to the pull-out device, injuries on a connection part of the grounding bar and a grounding wire while dismounting the temporary grounding bar is prevented; the potential safety hazard in continuous use of the grounding bar is reduced, and the dismantling operation of the grounding wire is relatively more standard.

Description

A kind of power ground extracting apparatus of rod

Technical field

The utility model relates to a kind of provisional earth rod extracting apparatus of electricity earthing cable, belongs to the Maintenance of Electric Transmission Line equipment technical field.

Background technology

In the power transmission lines overhauling operation; earth connection is an important technique measure of protection workmen safety; it is being 16 millimeters to diameter; when length is removed at the provisional round steel earth rod more than 60 centimetres; the general employing pounded pine with sledgehammer first; promote out again the original method on ground; it is also very low that the method has not only increased operator's labour intensity, inefficiency; particularly operation is more difficult in the winter time; often cause the damage of earth bar and earth connection connecting portion; make earth rod when continuing to use, have potential safety hazard, increased simultaneously the Maintenance of Electric Transmission Line cost.

The utility model content

The purpose of this utility model is the drawback for prior art, and a kind of simple in structure, easy to operate, earth rod extracting apparatus that provisional electricity earthing cable is removed smoothly is provided.

Problem described in the utility model realizes with following technical proposals:

A kind of power ground extracting apparatus of rod, it comprises hydraulic jack, clamp mount pad, clamp, pincerlike folder and base support body, described hydraulic jack is fixed on the base support body, the fixing assembling of its support bar and clamp mount pad, described clamp is fixed on the clamp mount pad, described pincerlike folder is equipped with clamp, and jaw position and the earth rod of pincerlike folder are complementary, and described base support body is fixed on the level ground.

The above-mentioned power ground extracting apparatus of rod, described pincerlike folder comprises tong arm, adjusting bolt and Compress Spring, described tong arm is comprised of two parts, their ends are hinged by jointed shaft, the other end arranges jaw, and described jaw working face is non-smooth rubbing surface, and described adjusting bolt is installed between two tong arms, at the outside of adjusting bolt suit Compress Spring, described Compress Spring two ends respectively with two tong arms in side compression.

The above-mentioned power ground extracting apparatus of rod, described clamp mount pad is provided with high and low two working faces, is equipped with the opening slotted hole that mates with earth rod in the end of two working faces, fixedly mounts clamp at height working face.

The above-mentioned power ground extracting apparatus of rod, described clamp comprises clamp body and bolt assembly, and described clamp body is upper and lower double-layer structure, and described bolt assembly runs through the two-layer up and down of clamp body, is installed in the middle part of clamp body.

The above-mentioned power ground extracting apparatus of rod, described base support body is the symmetrical slab construction that is installed in the jack stand both sides.

The utility model has installed the base support body additional at the hydraulic jack top/bottom part, has strengthened integrally-built stability; At hydraulic jack post upper fixing chuck plate mount pad, the opening slotted hole that is arranged on the high and low working face of clamp mount pad two ends cooperates with the earth rod of differing heights respectively, by the action of control hydraulic jack, by earth rod lift-pull handle or pincerlike the folder the earth rod application of force, earth rod is extracted, therefore when having avoided removing temporary ground wire to the damage of earth bar and earth connection connecting portion, reduced the potential safety hazard of earth rod when continuing to use, the dismantling operation that makes simultaneously earth connection is standard more.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is rough package drawing of the present utility model;

Fig. 2 is the front view of pincerlike folder;

Fig. 3 is A-A sectional structure chart among Fig. 2;

Fig. 4 is the front view of clamp mount pad;

Fig. 5 is the vertical view of clamp mount pad;

Fig. 6 is the main cutaway view of clamp;

Fig. 7 is the vertical view of clamp;

Fig. 8 is the end view of clamp.

Each label is among the figure: 1, hydraulic jack, 2, the clamp mount pad, 2-1, opening slotted hole, 3, clamp, 3-1, clamp body, 3-2, bolt assembly, 4, pincerlike folder, 4-1, tong arm, 4-2, adjusting bolt, 4-3, Compress Spring, 4-4, jointed shaft, 4-5, jaw, 5, the base support body, 6, earth rod, 6-1, earth rod lift-pull handle.

Embodiment

Referring to Fig. 1, the utility model comprises hydraulic jack 1, clamp mount pad 2, clamp 3, pincerlike folder 4 and base support body 5, described hydraulic jack 1 is fixed on the base support body 5, its support bar and the 2 fixing assemblings of clamp mount pad, described clamp 3 is fixed on the clamp mount pad 2, described pincerlike folder 4 is equipped with clamp 3, and jaw 4-5 and the earth rod of pincerlike folder 4 are complementary, and described base support body 5 is fixed on the level ground.

Referring to Fig. 1～Fig. 8, pincerlike folder 4 of the present utility model comprises tong arm 4-1, adjusting bolt 4-2 and Compress Spring 4-3, described tong arm 4-1 is comprised of two parts, their ends are hinged by jointed shaft 4-4, the other end arranges jaw 4-5, and described jaw working face is non-smooth rubbing surface, and described adjusting bolt 4-2 is installed between the two tong arm 4-1, at the outside of adjusting bolt 4-2 suit Compress Spring 4-3, described Compress Spring 4-3 two ends respectively with two tong arms in side compression; Clamp mount pad 2 of the present utility model is provided with high and low two working faces, be equipped with the opening slotted hole 2-1 that mates with earth rod in the end of two working faces, at height working face fixed installation clamp 3, described clamp 3 comprises clamp body 3-1 and bolt assembly 3-2, described clamp body is upper and lower double-layer structure, it is two-layer up and down that described bolt assembly 3-2 runs through the clamp body, is installed in the middle part of clamp body 3-1.

Referring to Fig. 1～Fig. 8, the course of work of the present utility model is: in the time need to removing the earth rod 6 of interim setting, can highly select according to earth rod 6 working face of clamp mount pad 2.When adopting the low working face that mates with physical features lower earth rod, can cooperate by opening slotted hole 2-1 direct by the earth rod lift-pull handle and that clamp mount pad 2 hangs down on the working faces, by 1 action of control hydraulic jack, earth rod 6 be pulled up certain altitude.Owing to being subjected to hydraulic jack 1 travel limits, can not disposablely extract earth rod fully, can be by rotational hydraulic jack support bar with being equipped with the opening slotted hole 2-1 of earth rod on clamp mount pad 2 height working faces, by pincer folder 4 earth rod 6 is clamped, then control hydraulic jack 1 action, again earth rod 6 is pulled up certain altitude, repeat aforesaid operations, until earth rod 6 is extracted fully.

The working face of pincerlike folder 4 of the present utility model is non-smooth rubbing surface, and pincerlike folder 4 cooperates with clamp mount pad 2 to be made pincer press from both sides working face and earth rod 6 to be certain angle of inclination, to have guaranteed the reliability of this earth rod extracting apparatus work; The utility model has installed base support body 5 additional in hydraulic jack 1 bottom, has strengthened integrally-built stability.

Claims

One kind power ground the rod extracting apparatus, it is characterized in that, it comprises hydraulic jack (1), clamp mount pad (2), clamp (3), pincerlike folder (4) and base support body (5), described hydraulic jack (1) is fixed on the base support body (5), the fixing assembling of its support bar and clamp mount pad (2), described clamp (3) is fixed on the clamp mount pad (2), described pincerlike folder (4) is equipped with clamp (3), the jaw (4-5) of pincerlike folder (4) is complementary with earth rod, and described base support body (5) is fixed on the level ground.
According to claim 1 a kind of power ground the rod extracting apparatus, it is characterized in that, described pincerlike folder (4) comprises tong arm (4-1), adjusting bolt (4-2) and Compress Spring (4-3), described tong arm (4-1) is comprised of two parts, their ends are hinged by jointed shaft (4-4), the other end arranges jaw (4-5), described jaw (4-5) working face is non-smooth rubbing surface, described adjusting bolt (4-2) is installed between two tong arms (4-1), at the outside of adjusting bolt (4-2) suit Compress Spring (4-3), described Compress Spring (4-3) two ends respectively with two tong arms in side compression.
According to claim 1 and 2 a kind of power ground the rod extracting apparatus, it is characterized in that, described clamp mount pad (2) is provided with high and low two working faces, be equipped with the opening slotted hole (2-1) that mates with earth rod in the end of two working faces, fixedly mount clamp (3) at height working face.
According to claim 3 a kind of power ground the rod extracting apparatus, it is characterized in that, described clamp (3) comprises clamp body (3-1) and bolt assembly (3-2), described clamp body is upper and lower double-layer structure, described bolt assembly (3-2) runs through the two-layer up and down of clamp body, is installed in the middle part of clamp body (3-1).
5. a kind of power ground extracting apparatus of rod according to claim 4 is characterized in that, described base support body (5) is the symmetrical slab construction that is installed in the jack stand both sides.