CN217642577U

CN217642577U - Ground wire junction box

Info

Publication number: CN217642577U
Application number: CN202221625040.1U
Authority: CN
Inventors: 王结鑫; 赵波波; 郭好勇; 杨国鑫; 陈栋; 王聪; 尤猛; 王姗姗
Original assignee: China Railway Construction Electrification Bureau Group Co Ltd; Third Engineering Co Ltd of China Railway Construction Electrification Bureau Group Co Ltd
Current assignee: China Railway Construction Electrification Bureau Group Co Ltd; Third Engineering Co Ltd of China Railway Construction Electrification Bureau Group Co Ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-10-21
Anticipated expiration: 2032-06-28

Abstract

The utility model provides a ground wire terminal box, its structure includes that terminal box, lid establish the line lid on the terminal box, set up binding post row and the ground connection copper bar in the terminal box, wherein it has entrance hole and wire hole to open on the terminal box, the ground connection copper bar is used for connecing the wiring portion and the ground wire connecting portion that the cable becomes the end including being located the terminal box, the one end and the wiring portion of ground wire connecting portion meet, the other end is worn out the terminal box and is extended outside for meet with the ground wire cable. The utility model discloses can avoid ground wire cable to insert the inside of terminal box for the inside cable of terminal box is arranged more neatly pleasing to the eye, and the change of the ground wire cable of being convenient for helps promoting the efficiency of construction. Additionally, the utility model discloses can not only avoid making the end on ground wire cable, can also avoid damaging other cables at the copper nose of wiring in-process ground wire cable.

Description

Ground wire junction box

Technical Field

The utility model relates to a terminal box, specifically speaking are a be used for railway signal system ground wire terminal box.

Background

With the progress of society, the economic level is improved, and the informatization level is also improved to a great extent, so that a large number of cables are laid on a railway to transmit signals, the cables comprise various signal cables, grounding wires and other lines, and the lines are connected to form a junction box. However, the ground wire junction box used on the current railway has the problems of narrow internal space of the junction box and difficult construction due to the excessive number of cables in the wiring process. In addition, the existing cables are not attractive in arrangement inside the cable box, the internal space of the cable box is occupied, and other cables are easily damaged when the ground wire or a copper nose on the ground wire is bent in the installation process, so that the need of reworking is caused, and the waste of manpower and resources is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a ground wire terminal box to solve the problem of the construction difficulty that leads to because of the cable inserts much of current ground wire terminal box and the problem that the cable was arranged unattractive in the terminal box.

The utility model discloses a realize like this:

the utility model provides an earth wire terminal box, includes that terminal box, lid are established line lid, setting on the terminal box are in binding post row and ground connection copper bar in the terminal box, wherein it has entrance hole and wire hole to open on the terminal box, ground connection copper bar is including being located the wiring portion and the earth wire connecting portion that are used for connecing the cable one-tenth end in the terminal box, the one end and the wiring portion of earth wire connecting portion meet, and the other end is worn out the terminal box and is extended outward for meet with the earth wire cable.

The wiring portion of the grounding copper bar is fixed on the box bottom of the junction box, the ground wire connecting portion is of a cylindrical structure, one end of the ground wire connecting portion is connected with the wiring portion, and the other end of the ground wire connecting portion penetrates through the box bottom of the junction box and extends outside.

And a wire connecting ring used for being connected with a ground wire cable is arranged at the penetrating end of the ground wire connecting part.

The wiring portion of the grounding copper bar is of an arc-shaped structure, the ground wire connecting portion is connected with the middle of the wiring portion through threads, a limiting bulge is arranged on the ground wire connecting portion, and when the ground wire connecting portion is connected with the wiring portion, the limiting bulge on the ground wire connecting portion abuts against the outer bottom face of the junction box.

The wire inlet hole and the wire outlet hole are formed in the box bottom of the junction box, one wire inlet hole is formed and located in the middle of the box bottom of the junction box, and the plurality of wire outlet holes are uniformly and annularly arranged around the wire inlet hole.

The wiring terminal strip is a bent six-column wiring terminal strip, the number of the wiring terminal strip is equal to the number of the wire holes, the wiring terminal strip corresponds to the wire holes one by one, and the wiring terminal strip is also uniformly and annularly arranged around the wire inlet hole.

The wiring terminal strip is arranged on one side, close to the wire inlet hole, of the wire outlet hole.

The junction box is connected with the wire box cover through bolts.

The wiring terminal row and the grounding copper bar are fixed on the bottom of the junction box through bolts.

The utility model discloses avoid the access of ground wire cable, help saving the inner space of terminal box, made the interior cable of terminal box arrange more neatly pleasing to the eye. Additionally, the utility model discloses with the end setting that meets of ground copper bar and earth cable in the outside of terminal box, make the operation of being connected of ground wire cable and ground copper bar go on in the terminal box outside, can avoid damaging other cables. And when the ground wire cable is damaged, the quick replacement of the ground wire cable can be realized, and the method is convenient and quick. Furthermore, the utility model discloses a ground wire cable can also be avoided to make the end in the setting of ground copper bar's external connection end, helps practicing thrift the construction process, promotes the efficiency of construction.

Drawings

Fig. 1 is a front schematic view of the present invention.

Fig. 2 is a schematic view of the reverse structure of the present invention.

Fig. 3 is a schematic view of the structure of the ground copper bar.

In the figure: 1. a terminal block; 2. a wire outlet hole; 3. a wire inlet hole; 4. a ground copper bar; 5. a junction box; 6. a connecting lug; 7. a fixing lug; 8. a wiring portion; 9. a limiting bulge; 10. a connecting ring; 11. a ground wire connection portion.

Detailed Description

As shown in fig. 1 and 2, the utility model discloses a terminal box 5, line box lid, binding post row 1 and ground copper bar 4, its line box lid is established on the box mouth of terminal box 5, and binding post row 1 and ground copper bar 4 set up in terminal box 5. The box bottom of the junction box 5 is provided with a wire inlet hole 3 and a wire outlet hole 2. As shown in fig. 3, the ground copper bar 4 includes a wiring portion 8 located in the junction box 5 and a ground wire connection portion 11, one end of the ground wire connection portion 11 is connected to the wiring portion 8, and the other end of the ground wire connection portion 11 penetrates through the junction box 5 and is exposed outside the junction box 5 for being connected to a ground wire cable.

As shown in fig. 3, the wiring portion 8 of the ground copper bar 4 in this embodiment is in an arc-shaped structure and fixed on the bottom of the junction box 5, the ground wire connecting portion 11 is in a cylindrical structure, one end of the ground wire connecting portion 11 is connected to the wiring portion, the other end of the ground wire connecting portion 11 penetrates through the bottom of the junction box 5 and is exposed outside the junction box 5 for being connected to a ground wire, and a connecting ring 10 is disposed at the exposed end of the ground wire connecting portion 11 for facilitating connection to the ground wire. The ground wire connecting portion 11 is connected to the middle of the wire connecting portion 8 by a screw. A circle of limiting bulges 9 are arranged on the ground wire connecting part 11, and when the ground wire connecting part 11 is connected with the wiring part 8, the limiting bulges 9 on the ground wire connecting part 11 are abutted against the outer bottom surface of the junction box 5.

As shown in fig. 1 and fig. 2, in this embodiment, the wire inlet hole 3 and the wire outlet hole 2 are both formed in the bottom of the junction box 5, one wire inlet hole 3 is formed in the middle of the bottom of the junction box 5, and the wire outlet holes 2 are formed in a plurality of numbers and uniformly and annularly arranged around the wire inlet hole 3. As shown in fig. 1, the terminal block 1 is a bent six-post terminal block, the number of the terminal block is equal to the number of the wire holes 2, and the terminal block 1 corresponds to the wire holes 2 one by one and is also uniformly and annularly arranged around the wire hole 2. Binding post row 1 in this embodiment sets up in the wire hole and is close to one side of entrance hole 3, can make the cable conductor that gets into from entrance hole 3 can be after connecting binding post row 1, draw forth from wire hole 2 in order, can make the cable conductor arrange more neatly pleasing to the eye like this.

The junction box 5 in this embodiment is attached to the junction box cover by a bolt. As shown in fig. 2, the utility model discloses be equipped with connection lug 6 in the outside of terminal box 5, set up the bolt perforation of wearing to establish the bolt on the connection lug 6, the bolt perforation is just used for wearing to connect connection terminal box 5 and line box lid bolt. In addition, the utility model discloses still be provided with fixed lug 7 in the outside of terminal box 5, it has the bolt perforation to open on the fixed lug 7 equally, can fix terminal box 5 on wall or other supports through wear to establish the bolt in the bolt perforation on fixed lug 7.

The utility model provides a binding post row 1 and ground copper bar 4 all pass through the bolt fastening on the box bottom of terminal box 5.

The utility model discloses when using, at first penetrate the main cable in terminal box 5 from entrance hole 3, then with the separated time cable dispersion of main cable be connected to binding post row 1 go up carry on the branch to, then draw forth through wire hole 2, the cable becomes to hold and is connected to the wiring portion 8 of ground copper bar 4 on, connects ground wire cable and ground copper bar 4's ground wire connecting portion 11 at last mutually.

The utility model discloses adopt following connection form between ground connection copper bar 4 and the ground wire connecting portion 11: the connecting ring 10 of the grounding copper bar 4 is connected with the copper nose at the end part of the ground wire cable through a bolt, and the exposed end of the grounding copper bar 4 and the outer part of the joint of the grounding copper bar and the ground wire cable are coated with a composite plastic layer.

Claims

1. The utility model provides a ground wire terminal box, characterized by includes that terminal box, lid are established line lid on the terminal box, setting are in binding post row and ground connection copper bar in the terminal box, wherein it has entrance hole and wire hole to open on the terminal box, ground connection copper bar is including being located the terminal box and being used for connecing the wiring portion and the ground wire connecting portion that the cable becomes the end, the one end and the wiring portion of ground wire connecting portion meet, and the other end is worn out the terminal box and is extended outward for meet with the ground wire cable.

2. The ground wire connection box as claimed in claim 1, wherein the connection portion of the ground copper bar is fixed to the bottom of the box, and the ground wire connection portion has a cylindrical structure with one end connected to the connection portion and the other end extending through the bottom of the box.

3. The ground connection box as claimed in claim 2, wherein a wire loop for connecting to a ground cable is provided on the leading end of the ground connection portion.

4. The ground wire connection box as claimed in claim 2, wherein the wiring portion of the ground copper bar has a circular arc shape, the ground wire connection portion is connected to a middle portion of the wiring portion by a screw, and a stopper protrusion is provided on the ground wire connection portion, and abuts against an outer bottom surface of the connection box when the ground wire connection portion is connected to the wiring portion.

5. The ground wire junction box of claim 1, wherein said wire inlet hole and said wire outlet hole are both formed in the bottom of the junction box, one wire inlet hole is formed in the middle of the bottom of the junction box, and a plurality of wire outlet holes are formed and uniformly arranged around the wire inlet hole in a circular manner.

6. The ground wire terminal box of claim 5, wherein the terminal block is a six-pin terminal block having a number equal to the number of the wire holes, and the terminal block is in one-to-one correspondence with the wire holes and is also uniformly and annularly arranged around the wire holes.

7. The ground terminal block of claim 6, wherein said terminal strip is disposed on a side of said wire outlet adjacent to said wire inlet.

8. The ground terminal box of claim 1, wherein said terminal box is bolted to said terminal box cover.

9. The ground terminal block as set forth in claim 1, wherein said terminal block and said ground copper bar are each fixed to a bottom of the terminal block by a bolt.