CN218161645U

CN218161645U - Intrinsic safety junction box

Info

Publication number: CN218161645U
Application number: CN202222191792.8U
Authority: CN
Inventors: 于桂斌
Original assignee: Qingdao Xinzhichuang Electromechanical Co ltd
Current assignee: Qingdao Xinzhichuang Electromechanical Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-12-27
Anticipated expiration: 2032-08-19

Abstract

The utility model discloses an this ampere of terminal box relates to this ampere of terminal box technical field. This intrinsic safety terminal box, including the terminal box main part, the inside of terminal box main part is fixed with the connection module, the outside of terminal box main part is provided with a plurality of terminal subassembly, the terminal subassembly includes insulating hollow block, the inside of insulating hollow block is fixed with metal track pipe, the top of insulating hollow block is inlayed and is had the nut, the internal thread of nut is connected with the bolt, the bottom of bolt is rotated and is connected with the metal clamp plate. This application is through the metal track pipe of horseshoe form, makes the copper wire of wire can take place to buckle naturally in the metal track pipe, promotes the area of contact of copper wire and metal track pipe in the wire, fixes through the metal clamp plate afterwards, has solved among the prior art and has adopted the less and bolt of connection scope that the bolt fastening leads to twist the in-process problem that very easily causes the copper wire to split.

Description

Intrinsic safety junction box

Technical Field

The utility model relates to an this ampere of terminal box technical field specifically is an this ampere of terminal box.

Background

The junction box JHH-8/60 for the mining intrinsic safety circuit can be matched with a cable used by a coal mine communication and monitoring system, can be used for underground coal mine excavation working surfaces, roadway chambers, environments with dangerous gas and coal dust explosion such as up and down mountains and the like, and is used for communication with an intrinsic safety type cable connecting device of monitoring system equipment, and the cable connecting device has the advantages of light weight, high strength, no corrosion, reliable contact and the like.

At present, the existing intrinsic safety junction box adopts a single bolt to fix a copper wire in a wire, so that the connection range of the bolt and the copper wire in the wire is small, and the copper wire is easy to break in the process of screwing the bolt, so that the connection safety and stability are affected.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an this ampere of terminal box has solved the problem that proposes in the above-mentioned background art. In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an intrinsic safe terminal box, includes the terminal box main part, the inside of terminal box main part is fixed with the connection module, the outside of terminal box main part is provided with a plurality of terminal subassemblies, the terminal subassembly includes insulating hollow block, the inside of insulating hollow block is fixed with metal track pipe, the top of insulating hollow block is inlayed and is had the nut admittedly, the internal thread of nut is connected with the bolt, the bottom of bolt is rotated and is connected with the metal clamp plate, the inner wall bottom of insulating hollow block is fixed with hydraulic pressure storehouse, the inside one end sliding connection in hydraulic pressure storehouse has hydraulic stem one, the inside other end sliding connection in hydraulic pressure storehouse has hydraulic stem two.

Preferably, the whole metal track pipe is in a horseshoe shape, one end of the metal track pipe is in an open communication state, the other end of the metal track pipe is in a closed state, and a through hole is formed in the side wall of the open end of the metal track pipe.

Preferably, the hydraulic rod I is integrally L-shaped, and one end of the hydraulic rod I, which is far away from the hydraulic cabin, is fixed on the metal pressing plate.

Preferably, one end of the second hydraulic rod, which is far away from the hydraulic cabin, is slidably connected in a through hole formed in the side wall of the open end of the metal track pipe.

Preferably, the whole metal pressing plate is in a horseshoe shape, and the specification of the metal pressing plate is the same as that of the inner wall of the metal track pipe.

Preferably, two sliding grooves are formed in the metal pressing plate, two limiting rods are fixed to the top end of the inner wall of the insulating hollow block, and the two limiting rods slide in the two sliding grooves of the metal pressing plate respectively.

The utility model provides an intrinsic safety junction box. The method has the following beneficial effects:

(1) This application is through the metal track pipe of horseshoe form, makes the copper wire of wire can take place to buckle naturally in the metal track pipe, promotes the area of contact of copper wire and metal track pipe in the wire, fixes through the metal pressing plate afterwards, has solved among the prior art and has adopted the less and bolt of connection scope that the bolt fastening leads to and has twisted the in-process problem that very easily causes the copper wire fracture.

(2) This application sets up assistance-localization real-time's hydraulic stem two in insulating hollow block, increases the contact stability of copper wire and metal track pipe in the wire, further promotes the whole compactness of being connected with the wire of equipment.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a schematic view of the terminal assembly of the present invention;

FIG. 3 is a schematic view of an internal structure of the terminal assembly of the present invention;

FIG. 4 is a schematic structural view of the metal pressing plate of the present invention;

fig. 5 is a schematic structural diagram of the first hydraulic rod of the present invention.

In the figure: 1. a junction box main body; 2. connecting the module; 3. a terminal assembly; 31. an insulating hollow block; 32. a metal track tube; 33. a nut; 34. a bolt; 35. a metal platen; 36. a limiting rod; 37. a hydraulic pressure cabin; 38. a first hydraulic rod; 39. and a second hydraulic rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, the present invention provides a technical solution: an intrinsic safety junction box comprises a junction box main body 1, a connecting module 2 is fixed inside the junction box main body 1, a plurality of terminal assemblies 3 are arranged outside the junction box main body 1, each terminal assembly 3 comprises an insulating hollow block 31, a metal track pipe 32 is fixed inside the insulating hollow block 31, the metal track pipe 32 is integrally in a horseshoe shape, one end of each metal track pipe 32 is in an open communication state, the other end of each metal track pipe 32 is in a closed state, a through hole is formed in the side wall of the open end of each metal track pipe 32, a nut 33 is embedded at the top end of the insulating hollow block 31, a bolt 34 is connected with the internal thread of the nut 33, a metal pressing plate 35 is rotatably connected to the bottom of the bolt 34, the metal pressing plate 35 is integrally in a horseshoe shape, the specification of the metal pressing plate 35 is the same as that of the inner wall of the metal track pipe 32, two sliding grooves are formed inside the metal pressing plate 35, the inner wall top of insulating hollow block 31 is fixed with two gag lever posts 36, two gag lever posts 36 slide respectively in two spouts of metal pressing plate 35, the inner wall bottom of insulating hollow block 31 is fixed with hydraulic pressure storehouse 37, the inside one end sliding connection of hydraulic pressure storehouse 37 has hydraulic stem one 38, hydraulic stem one 38 is whole to be the L type, hydraulic stem one 38 is kept away from the one end of hydraulic pressure storehouse 37 and is fixed on metal pressing plate 35, the inside other end sliding connection of hydraulic pressure storehouse 37 has hydraulic stem two 39, hydraulic stem two 39 keep away from the one end sliding connection of hydraulic pressure storehouse 37 in the through-hole of seting up on the open end lateral wall of metal track pipe 32, this application sets up auxiliary positioning's hydraulic stem two 39 in insulating hollow block 31, increase copper wire and metal track pipe 32's contact stability in the wire, further the whole compactness of being connected with the wire of lifting means. This application is through the metal track pipe 32 of horseshoe form, makes the copper wire of wire can take place to buckle naturally in metal track pipe 32, promotes the area of contact of copper wire and metal track pipe 32 in the wire, fixes through metal pressing plate 35 afterwards, has solved among the prior art that the connection range is less and fixed in-process very easily causes the cracked problem of copper wire.

When the device is used, firstly, the insulating sleeve at one end of the lead is removed, the copper wire leaks, then the copper wire is inserted into the open end of the metal track pipe 32, the copper wire is bent naturally in the metal track pipe 32, then the bolt 34 is rotated and moves downwards under the action of the nut 33, the metal pressing plate 35 is driven to move downwards through the bolt 34, the copper wire in the metal track pipe 32 is extruded through the metal pressing plate 35, and the limiting rod 36 is connected in the metal pressing plate 35 in a sliding mode, so that the motion track of the metal pressing plate 35 can be limited, meanwhile, in the downward movement process of the metal pressing plate 35, the first hydraulic rod 38 is driven to move downwards, the liquid pressure in the hydraulic bin 37 is increased, the second hydraulic rod 39 extends out to assist in positioning of the copper wire in the metal track pipe 32, and the connection tightness of the whole device and the lead is further improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an this ampere of terminal box, includes terminal box main part (1), its characterized in that: the inside of terminal box main part (1) is fixed with connects module (2), the outside of terminal box main part (1) is provided with a plurality of wiring end subassemblies (3), wiring end subassembly (3) are including insulating hollow block (31), the inside of insulating hollow block (31) is fixed with metal track pipe (32), the top of insulating hollow block (31) inlays intrinsic nut (33), the internal thread of nut (33) is connected with bolt (34), the bottom of bolt (34) is rotated and is connected with metal clamp plate (35), the inner wall bottom of insulating hollow block (31) is fixed with hydraulic pressure storehouse (37), the inside one end sliding connection of hydraulic pressure storehouse (37) has hydraulic stem one (38), the inside other end sliding connection of hydraulic pressure storehouse (37) has hydraulic stem two (39).

2. An intrinsically safe junction box as claimed in claim 1, wherein: the metal track pipe (32) is wholly horseshoe-shaped, one end of the metal track pipe (32) is in an open communicating state, the other end of the metal track pipe is in a closed state, and a through hole is formed in the side wall of the open end of the metal track pipe (32).

3. An intrinsically safe junction box as claimed in claim 2, wherein: the hydraulic rod I (38) is L-shaped integrally, and one end, far away from the hydraulic cabin (37), of the hydraulic rod I (38) is fixed on the metal pressing plate (35).

4. An intrinsically safe junction box as claimed in claim 3, wherein: one end of the second hydraulic rod (39) far away from the hydraulic cabin (37) is connected in a through hole formed in the side wall of the open end of the metal track pipe (32) in a sliding mode.

5. An intrinsically safe junction box as claimed in claim 1, wherein: the metal pressing plate (35) is in a horseshoe shape as a whole, and the specification of the metal pressing plate (35) is the same as that of the inner wall of the metal track pipe (32).

6. An intrinsically safe junction box as claimed in claim 1, wherein: two sliding grooves are formed in the metal pressing plate (35), two limiting rods (36) are fixed to the top end of the inner wall of the insulating hollow block (31), and the two limiting rods (36) slide in the two sliding grooves of the metal pressing plate (35) respectively.