CN219304408U

CN219304408U - Junction box

Info

Publication number: CN219304408U
Application number: CN202320607916.8U
Authority: CN
Inventors: 孙向东; 章斌辉; 张作涛; 魏俊杰; 南建龙; 文辉; 张彤
Original assignee: Huating Coal Industry Group Co ltd
Current assignee: Huating Coal Industry Group Co ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-07-04
Anticipated expiration: 2033-03-24

Abstract

The utility model belongs to the technical field of electrical equipment, and particularly relates to a junction box. The junction box comprises a box body and a plurality of wire clamping assemblies, wherein the wire clamping assemblies are arranged on the inner wall of one side of the box body side by side; the card line subassembly includes: the connecting rod is connected to the inner wall of the box body, and a sliding groove is formed in the upper surface of the connecting rod along the length direction; the two ends of the sliding rod are fixedly connected with the two ends of the sliding groove respectively; the wire clamping slide block slides along the sliding groove and comprises a sliding part sleeved on the sliding rod and a wire clamping part fixedly connected above the sliding part; and the spring is sleeved on the sliding rod, and two ends of the spring are respectively fixed with the inner wall, close to the box body, of the sliding groove and the sliding part. Therefore, the wire clamping assembly is arranged on the inner wall of the box body, the spring in the wire clamping assembly can apply thrust to the sliding part to tightly prop against the wire clamping sliding block in the sliding groove on the connecting rod, and meanwhile, the wire clamping part fixes the wire end, so that the wire end is tightly inserted into the wire connector and is not easy to loosen.

Description

Junction box

Technical Field

The utility model belongs to the technical field of electrical equipment, and particularly relates to a junction box.

Background

In mining coal mines, many electromechanical devices are used, and the operation of the devices requires electricity and signals, so that the electromechanical devices need to be connected with wires for power and signals, and in mine tunnels, junction boxes are usually used for connection with the wires. When the wire is a single-strand wire core, the wire core is directly inserted into a pin hole of a wiring port of the junction box and wound on the binding post, and then the crimping screw is used for pressing the wire head. Whether the wire is a single-strand wire or a multi-strand wire, the end of the wire must be inserted to the bottom when the end of the wire is inserted into the pinhole, the insulating layer of the wire must not be inserted into the hole, and the length of the bare wire outside the pinhole must not exceed 3mm.

However, after the existing junction box is connected with the wire, the wire cannot be pulled in the working process, the end head of the wire and the wiring port of the junction box are loose and even fall off in the long time, so that the multi-strand wire core is loose, the multi-strand wire core and the single-strand wire core are broken and exposed, the length of the bare wire head exceeds 3mm, and the short circuit or the overhigh resistance is caused, so that the using effect of the coal mine electromechanical equipment is affected.

Disclosure of Invention

First, the technical problem to be solved

In order to solve the problems in the prior art, the utility model provides the junction box, thereby solving the technical problems that the connection part of the end head of the wire and the junction box is easy to loosen and even fall off.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

the utility model provides a junction box, which comprises a box body and a plurality of wire clamping assemblies, wherein the wire clamping assemblies are fixed in the box body and are used for fixing wire ends, and the wire clamping assemblies are arranged on the inner wall of one side of the box body side by side; the card line subassembly includes: the connecting rod is connected to the inner wall of the box body, and a sliding groove is formed in the upper surface of the connecting rod along the length direction; the two ends of the sliding rod are fixedly connected with the two ends of the sliding groove respectively; the wire clamping slide block slides along the sliding groove and comprises a sliding part sleeved on the sliding rod and a wire clamping part fixedly connected above the sliding part; and the spring is positioned in the sliding groove and sleeved on the sliding rod, and two ends of the spring are respectively fixed with the inner wall, close to the box body, of the sliding groove and the sliding part.

Further, the wire clamping part is provided with a positioning hole and a first opening communicated with the positioning hole at one side of the wire clamping part, the end head of the wire enters the positioning hole through the first opening and is clamped in the positioning hole, and the wire positioned in the positioning hole is wrapped with sponge.

Further, a second opening for guiding the lead is formed on the same side of the connecting rod as the first opening.

Further, the wire clamping device also comprises a plurality of fixing heads for fixing wires, a plurality of limiting holes for the wires to enter the box body are formed in the side wall of the box body connected with the wire clamping assembly, and the fixing heads can be installed in an adaptive mode with the limiting holes; the fixed head comprises a tubular fixed part and a limiting ring fixedly sleeved outside the fixed part, the fixed part is divided into a head end and a tail end by the limiting ring, and the tail end is arranged in the limiting hole.

Further, an internal thread is arranged in the limiting hole, an external thread is arranged at the tail end, and the tail end is in threaded connection with the limiting hole.

Further, a third opening for the wire to enter the fixing part is formed in the corresponding position of the fixing part and the limiting ring; the wire enters the fixing part through the third opening and is clamped in the fixing part, and the wire positioned in the fixing part is wrapped with sponge.

Further, the wire connector is arranged in the box body and used for connecting wires, one side, close to the wire clamping assembly, of the wire connector is provided with a wire connecting port corresponding to the wire clamping assembly, and the wire connecting port is connected with the wire end.

Further, the box cover is fixed above the box body, and a dust screen is arranged on the side wall of the box cover.

Further, the bottom surface of box lid is provided with the flange, and box corresponds flange department and is provided with the mounting hole, and the lateral wall of mounting hole is provided with the screw hole, and the flange inserts and locates the mounting hole and stretches into the screw hole through the bolt and fix.

Further, the lateral wall bottom of box is provided with the fixing base, has seted up the through-hole on the fixing base.

(III) beneficial effects

The beneficial effects of the utility model are as follows:

according to the wiring box provided by the utility model, the wire clamping assembly is arranged on the inner wall of the box body, the wire clamping sliding block in the wire clamping assembly comprises the sliding part and the wire clamping part fixedly connected above the sliding part, the spring in the wire clamping assembly can apply thrust to the sliding part to tightly prop the wire clamping sliding block in the sliding groove on the connecting rod, and meanwhile, the wire clamping part is used for fixing the wire end, so that the wire end is tightly inserted into the wiring device and is not easy to loosen.

Drawings

FIG. 1 is a schematic view of the structure of the inside of a junction box;

FIG. 2 is a schematic diagram of a wire clamping assembly;

FIG. 3 is a schematic view of the structure of the wire clamping slider when the wire is fixed;

FIG. 4 is a schematic structural view of a stationary head;

fig. 5 is a schematic structural view of the junction box.

[ reference numerals description ]

1: a case; 11: a limiting hole; 12: a mounting hole; 13: a threaded hole; 14: a fixing seat; 141: a through hole;

2: a wire clamping assembly; 21: a connecting rod; 211: a sliding groove; 212: a second opening; 22: a slide bar; 23: a wire clamping slide block; 231: a sliding part; 232: a wire clamping part; 2321: a first opening; 2322: positioning holes; 24: a spring;

3: a fixed head; 31: a fixing part; 32: a limiting ring; 33: a third opening;

4: a wire connector; 41: a wiring port;

5: a case cover; 51: a dust screen;

6: a wire; 7: and (3) a sponge.

Detailed Description

In order that the above-described aspects may be better understood, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete

And will fully convey the scope of the utility model to those skilled in the art.

As shown in fig. 1 to 5, the present utility model provides a junction box, comprising a box body 1, a plurality of wire clamping assemblies 2 fixed in the box body 1 for fixing wire ends, a wire connector 4 arranged in the box body 1 for connecting wires 6, and a box body cover 5 fixed above the box body 1. The wire clamping assemblies 2 are arranged on the inner wall of one side of the box body 1 side by side, one side, close to the wire clamping assemblies 2, of the wire connector 4 is provided with a wire connecting port 41 corresponding to the wire clamping assemblies 2, and the wire connecting port 41 is connected with a wire end. The bottom surface of box lid 5 is provided with the flange, and box 1 corresponds flange department and is provided with mounting hole 12, and the lateral wall of mounting hole 12 is provided with screw hole 13, and the flange inserts and locates mounting hole 12 and stretches into screw hole 13 through the bolt and fix. The bottom end of the side wall of the box body 1 is provided with a fixing seat 14, and the fixing seat 14 is provided with a through hole 141 for fixing the junction box at a specified position.

As shown in fig. 1 and 2, the wire clamping assembly 2 includes a connecting rod 21, a slide rod 22, and a wire clamping slider 23. The connecting rod 21 is connected on the inner wall of the box body 1, the upper surface of the connecting rod 21 is provided with a sliding groove 211 along the length direction, two ends of the sliding rod 22 are respectively fixedly connected with two ends of the sliding groove 211, and the wire clamping slide block 23 slides along the sliding groove 211.

As shown in fig. 2 and 3, the wire clamping slider 23 includes a sliding portion 231 sleeved on the sliding rod 22 and a wire clamping portion 232 fixedly connected above the sliding portion 231. The wire clamping part 232 is provided with a positioning hole 2322 and a first opening 2321 formed in one side of the wire clamping part 232 and communicated with the positioning hole 2322, a wire end enters the positioning hole 2322 through the first opening 2321 and is clamped in the positioning hole 2322, and a wire 6 positioned in the positioning hole 2322 is wrapped with a sponge 7. The spring 24 is disposed in the sliding groove 211 and sleeved on the sliding rod 22, and both ends of the spring are respectively fixed with the sliding groove 211 and the sliding part 231 near the inner wall of the case 1. The wire clamping slider 23 can push the wire clamping slider 23 against the inner wall of the sliding groove 211 under the action of the spring 24, so that the wire end on the wire clamping slider 23 is tightly abutted, and the wire end cannot loosen.

In addition, as shown in fig. 2, a second opening 212 for guiding the wire 6 is formed on the same side of the connecting rod 21 as the first opening 2321.

As shown in fig. 1, the junction box further includes a plurality of fixing heads 3 for fixing the wires 6. A plurality of limiting holes 11 used for the wires 6 to enter the box body 1 are formed in the side wall of the box body 1 connected with the wire clamping assembly 2, and the fixing head 3 can be installed in an adaptive mode with the limiting holes 11 to well limit the wires 6.

As shown in fig. 4, the fixing head 3 includes a tubular fixing portion 31 and a limiting ring 32 fixedly sleeved outside the fixing portion 31, the limiting ring 32 divides the fixing portion 31 into a head end and a tail end, and the tail end is mounted in the limiting hole 11. The corresponding positions of the fixing part 31 and the limiting ring 32 are provided with a third opening 33 for the lead 6 to enter the fixing part 31, the lead 6 enters the fixing part 31 through the third opening 33 and is clamped in the fixing part 31, and the lead 6 positioned in the fixing part 31 is wrapped with the sponge 7.

In this embodiment, an internal thread is disposed in the limiting hole 11, an external thread is disposed at the tail end of the fixing portion 31, and the tail end of the fixing portion 31 is in threaded connection with the limiting hole 11.

In summary, the wire clamping assembly 2 and the fixing head 3 combine to perform a good clamping function on the wire 6.

In addition, as shown in fig. 5, the dust screen 51 is provided on the side wall of the case cover 5, so that it is possible to ensure that dust is prevented from entering the junction box while heat is dissipated.

Working principle: when the fixing device is used, firstly, a bolt passes through the through hole 141 on the fixing seat 14, the junction box is installed in a mine channel, and the tail end of the fixing part 31 is connected with the limit hole 11 in a threaded manner so that the fixing head 3 is installed in a matched manner with the limit hole 11. Then, the wire 6 enters the fixing portion 31 through the third opening 33, so that the end of the wire enters the box 1 and is clamped in the fixing portion 31, and the wire 6 in the fixing portion 31 is wrapped with the sponge 7. The end of the wire entering the box body 1 firstly enters the second opening 212 on the connecting rod 21 for guiding, then enters the positioning hole 2322 through the first opening 2321 and is clamped in the positioning hole 2322, and the wire 6 positioned in the positioning hole 2322 is wrapped with the sponge 7. Finally, the wire ends are connected to the connection ports 41 on the connector 4. At this time, the wire end on the wire clamping slider 23 is abutted against under the action of the spring 24, so that the wire end is not loosened.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims

1. The wiring box comprises a box body (1) and is characterized by further comprising a plurality of wire clamping assemblies (2) which are fixed in the box body (1) and used for fixing wire ends, wherein the wire clamping assemblies (2) are arranged on the inner wall of one side of the box body (1) side by side;

the card wire assembly (2) comprises:

the connecting rod (21) is connected to the inner wall of the box body (1), and a sliding groove (211) is formed in the upper surface of the connecting rod (21) along the length direction;

the two ends of the sliding rod (22) are fixedly connected with the two ends of the sliding groove (211) respectively;

the wire clamping slider (23) slides along the sliding groove (211), and the wire clamping slider (23) comprises a sliding part (231) sleeved on the sliding rod (22) and a wire clamping part (232) fixedly connected above the sliding part (231);

and the spring (24) is positioned in the sliding groove (211) and sleeved on the sliding rod (22), and two ends of the spring (24) are respectively fixed with the inner wall, close to the box body (1), of the sliding groove (211) and the sliding part (231).

2. The junction box according to claim 1, wherein the wire clamping portion (232) is provided with a positioning hole (2322) and a first opening (2321) formed in one side of the wire clamping portion (232) and communicated with the positioning hole (2322), the wire end enters the positioning hole (2322) through the first opening (2321) and is clamped in the positioning hole (2322), and the wire (6) located in the positioning hole (2322) is wrapped with a sponge (7).

3. Junction box according to claim 2, characterized in that the connecting rod (21) is provided with a second opening (212) on the same side as the first opening (2321) for guiding the wire (6).

4. Junction box according to claim 1, characterized in that it further comprises a plurality of fixing heads (3) for fixing the wires (6), a plurality of limit holes (11) for the wires (6) to enter the box (1) are formed in the side wall of the box (1) connected with the wire clamping assembly (2), and the fixing heads (3) can be mounted in an adaptive manner with the limit holes (11);

the fixing head (3) comprises a tubular fixing part (31) and a limiting ring (32) fixedly sleeved on the outer side of the fixing part (31), the limiting ring (32) divides the fixing part (31) into a head end and a tail end, and the tail end is installed in the limiting hole (11).

5. Junction box according to claim 4, characterized in that the limiting hole (11) is internally provided with an internal thread, the tail end is provided with an external thread, and the tail end is screwed with the limiting hole (11).

6. Junction box according to claim 4, characterized in that the fixing part (31) and the stop collar (32) are provided with a third opening (33) for the wire (6) to enter the fixing part (31) in corresponding positions;

the lead (6) enters the fixing part (31) through the third opening (33) and is clamped in the fixing part (31), and the lead (6) positioned in the fixing part (31) is wrapped with a sponge (7).

7. Junction box according to claim 1, characterized in that it further comprises a wire connector (4) arranged in the box body (1) and used for connecting the wires (6), one side of the wire connector (4) close to the wire clamping assembly (2) is provided with a wire connecting port (41) corresponding to the wire clamping assembly (2), and the wire connecting port (41) is connected with the wire ends.

8. Junction box according to claim 1, characterized in that it further comprises a box cover (5) fixed above the box (1), the side walls of the box cover (5) being provided with dust screens (51).

9. Junction box according to claim 8, characterized in that the bottom surface of the box cover (5) is provided with a flange, the box (1) is provided with a mounting hole (12) corresponding to the flange, the side wall of the mounting hole (12) is provided with a threaded hole (13), and the flange is inserted into the mounting hole (12) and is fixed by extending into the threaded hole (13) through a bolt.

10. Junction box according to claim 1, characterized in that the bottom end of the side wall of the box body (1) is provided with a fixing seat (14), and the fixing seat (14) is provided with a through hole (141).