CN203774711U

CN203774711U - Explosion-proof junction box

Info

Publication number: CN203774711U
Application number: CN201420190732.7U
Authority: CN
Inventors: 宋文强
Original assignee: DAQING HONGFULAI ELECTRICAL EQUIPMENT MANUFACTURING Co Ltd
Current assignee: Daqing Hengchi Electric Co ltd
Priority date: 2014-04-20
Filing date: 2014-04-20
Publication date: 2014-08-13
Anticipated expiration: 2024-04-20

Abstract

An explosion-proof junction box of the utility model relates to an electrical junction box. The explosion-proof junction box is composed of a box body, a box cover and threading ports. The inside of the box body is provided with a wiring terminal row. The four walls of the box body are respectively provided with more than one threading port. A winding shaft is arranged at each threading port inside the box body. Each winding shaft is connected with a screw socket at the bottom of the box by passing a screw rod I through the winding shaft. The box cover and the box body are matched in use. Sealing gaskets are arranged between the box cover and the box body. The box cover and the box body are connected and fixed by more than two screw rods II. The explosion-proof junction box of the utility model is internally provided with a reserved winding shaft, each inlet/outlet line can be reserved inside the box body by a certain length, and the problem that the existing line is not long enough due to later line change is solved. In addition, the structure avoids the disadvantage that an external line is suddenly stretched to cause a line at an internal wiring terminal to easily fall off, a fixing and buffering role is achieved, and cleanness inside the box body is not affected.

Description

Explosion-proof wiring box

Technical field

The utility model relates to electric circuit connection container, relates in particular to explosion-proof wiring box.

Background technology

The explosion-proof form of electrical explosion proof equipment of using mostly at present is flame-proof type, the parts that can produce spark arc while being about to electric equipment operation are placed in explosion-proof casing, explosion-proof casing bears blast pressure, and can guarantee that inner flame gas reduces energy while propagating by gap, prevent from igniting extraneous gas, explosion-proof wiring box is higher in explosive place utilance, existing explosion-proof wiring box is only provided with binding post in inside, the line length of turnover is comparatively fixing, thereby when to electric change, often occur that existing line length can not meet the rear needed length of change, just have to increase junction box or be replaced with longer whole circuit, thereby can increase equipment cost and required time and the human input of rewiring, even if there is reserved line also can be placed on the outside of casing, cause outside line confusion very.

Utility model content

The utility model is intended to for the problem existing in background technology, and a kind of explosion-proof wiring box proposing.

Explosion-proof wiring box of the present utility model, to be formed by casing, case lid and threading opening, box house described in it is provided with connecting terminal block, casing wall is equipped with more than one threading opening, each threading opening place of box house is equipped with roll, described roll is run through with screw socket at the bottom of case and is connected by screw rod I, and described case lid and casing are used in conjunction with, between be provided with seal gasket and be connected and fixed by plural screw rod II.

As further improvement of the utility model, in each described threading opening, be equipped with cable sealed joint.

As further improvement of the utility model, described roll is being set with more than one interlayer packing ring.

As further improvement of the utility model, described bottom half is provided with plural fixture.

Explosion-proof wiring box of the present utility model, in inside, be provided with reserved wire-wound axle, every line all can be reserved to certain length at box house, solved later stage circuit change time existing line the inadequate problem of length, in addition, this structure has also been avoided the outside line drawback that stretching makes the circuit at back panel wiring terminal place be easy to come off suddenly, play the effect of fixing buffering, can not affect the in order clean and tidy of box house and casing outside line simultaneously.

Accompanying drawing explanation

Fig. 1 is the utility model box inner structure schematic top plan view;

Fig. 2 is this practical casing schematic top plan view;

Fig. 3 is that the A-A of the utility model Fig. 1 is to cutaway view.

Embodiment

Below in conjunction with accompanying drawing 1, Fig. 2 and Fig. 3, to explosion-proof wiring box of the present utility model, be described further.

Embodiment 1

Explosion-proof wiring box of the present utility model, by casing 1, case lid 2 and threading opening 3 form, the interior middle part of casing 1 described in it is fixed wtih connecting terminal block 4, casing 1 wall is equipped with more than one threading opening 3, in each threading opening 3, be equipped with cable sealed joint 9, inner each threading opening 3 place of casing 1 are equipped with roll 5, effect is that every inlet wire and outlet can be wound around on axle 5, as reserved line, for later adjusting circuit, at the bottom of described roll 5 runs through rear and case by screw rod I 6, screw socket is connected and fixed, described case lid 2 is used in conjunction with casing 1, between be provided with seal gasket 7 and be connected and fixed by plural screw rod II 8.

Embodiment 2

Explosion-proof wiring box of the present utility model, by casing 1, case lid 2 and threading opening 3 form, the interior middle part of casing 1 described in it is fixed wtih connecting terminal block 4, casing 1 wall is equipped with more than one threading opening 3, in each threading opening 3, be equipped with cable sealed joint 9, inner each threading opening 3 place of casing 1 are equipped with roll 5, effect is that every inlet wire and outlet can be wound around on axle 5, as reserved line, for later adjusting circuit, at the bottom of described roll 5 runs through rear and case by screw rod I 6, screw socket is connected and fixed, described case lid 2 is used in conjunction with casing 1, between be provided with seal gasket 7 and be connected and fixed by plural screw rod II 8.Described roll 5 is being set with more than one interlayer packing ring 10, for having many circuits at a threading opening, pass, in the coiling of the different circuits on axle, just can be separated by interlayer packing ring 10 like this, the phenomenon that there will not be circuit confusion, casing 1 bottom is provided with plural fixture 11, for static housing.

Claims

1. explosion-proof wiring box, to be formed by casing (1), case lid (2) and threading opening (3), it is characterized in that: described casing (1) inside is provided with connecting terminal block (4), casing (1) wall is equipped with more than one threading opening (3), inner each threading opening of casing (1) (3) locates to be equipped with roll (5), described roll (5) is run through with screw socket at the bottom of case and is connected by screw rod I (6), described case lid (2) and casing (1) are used in conjunction with, between be provided with seal gasket (7) and be connected and fixed by plural screw rod II (8).

2. explosion-proof wiring box as claimed in claim 1, is characterized in that: in described each threading opening (3), be equipped with cable sealed joint (9).

3. explosion-proof wiring box as claimed in claim 1 or 2, is characterized in that: described roll (5) is being set with more than one interlayer packing ring (10).

4. explosion-proof wiring box as claimed in claim 1 or 2, is characterized in that: described casing (1) bottom is provided with plural fixture (11).