CN212811208U

CN212811208U - Explosion-proof junction box

Info

Publication number: CN212811208U
Application number: CN202022046150.XU
Authority: CN
Inventors: 金加听
Original assignee: Jiayi Explosion Proof Electrical Appliance Co ltd
Current assignee: Jiayi Explosion Proof Electrical Appliance Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-03-26
Anticipated expiration: 2030-09-17

Abstract

The utility model discloses an explosion-proof junction box, its technical scheme main points include that the box body outer wall sets up to the three-layer and divide into inlayer, hollow layer and skin, is equipped with the one-way pneumatic valve outside leading to by the lining on the inlayer, is equipped with the plunger of making by elastic material on the skin, is equipped with pressure sensor and alarm on the lid, has gas leakage or electric leakage burning to all can make inside atmospheric pressure rise to trigger the alarm when inside, can make the plunger blowout reduce internal energy and pressure release through one-way pneumatic valve after pressure risees gradually, the utility model discloses have the effect of avoiding the explosion accident, still have the effect that reduces box body explosion intensity when the explosion can't prevent, make the intensity and the security of explosion-proof junction box stronger.

Description

Explosion-proof junction box

Technical Field

The utility model relates to a terminal box, more specifically say that it relates to an explosion-proof terminal box.

Background

An explosion-proof junction box is a fitting for laying electric wires and cables which is often used in electrical engineering installation. The explosion-proof junction box is generally composed of a box body and a box cover, is used for gathering electric wires or flammable pipelines to form a circuit switch or form turning or collecting and distributing and the like, and is a necessary spare part of the flammable pipelines of electric wires and cables.

When an accident occurs, the existing explosion-proof junction box often has no early warning, so that other surrounding equipment is damaged by explosion, and the scattered metal fragments are often seriously injured by surrounding workers due to the explosion caused by high internal pressure.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides an explosion-proof terminal box has the early warning explosion, avoids the effect of explosion accident, still has the effect that alleviates explosion intensity, makes explosion-proof terminal box's security stronger.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an explosion-proof junction box, includes box body, lid and leads to the chamber, its characterized in that, the box body sets up to the cross-pipe type, the conch wall of box body divide into the three-layer and sets up to inlayer, hollow layer and skin, hollow layer cuts off inlayer and skin, be provided with a plurality of on the inlayer and access to hollow layer's one-way pneumatic valve by the inlayer, be provided with a plurality of through-hole on the skin and wherein be provided with the plunger, the plunger leans on can to when hollow layer's one end receives gas pressure the box external motion is and drops, install pressure sensor and alarm on the lid, pressure sensor with the alarm is connected and is established control relation, be provided with a plurality of solid line posts that are used for fixed pipeline in the box body.

The utility model discloses further set up to: the one-way air valves are uniformly distributed on the inner layer.

The utility model discloses further set up to: the plunger is made of elastic materials and is tightly attached to the through hole, and a plug cap with a cross section larger than that of the plunger column body is arranged at one end of the plunger close to the outer side of the box body.

The utility model discloses further set up to: the pressure sensor and the alarm are connected and installed, wherein the control relationship is that when the pressure sensor monitors that the pressure is greater than a preset threshold value, the alarm is started.

The utility model discloses further set up to: the wire fixing column is arranged at the bottom in the box body, and a clamping groove for fixing the direction of a pipeline is arranged in the wire fixing column.

The utility model discloses further set up to: the box body and the box cover are both made of cast aluminum alloy.

To sum up, the utility model discloses following beneficial effect has: the effect of buffering can be played in the time of the explosion in the setting of box body shell three-layer, the setting up of one-way pneumatic valve makes gaseous entering hollow layer in can only following the inlayer, the leakproofness in the inlayer has been ensured, the plunger that sets up on the skin can play the energy of consuming some explosions and play the effect of further pressure release after the plunger drops, the plunger is made by elastic material and can ensures the leakproofness, destructive nature is not big when also enabling the plunger to pop out, the setting of cock cap has prevented that the plunger from falling into hollow layer because of outside atress, the very first time early warning before the occurence of failure can be in the setting of pressure sensor and alarm, the box body internal wiring structure can be optimized in the setting of solid line post. The possibility of accidents of the explosion-proof junction box is reduced, and the safety of the explosion-proof junction box is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

fig. 2 is a schematic diagram of the structure of the box body housing of the embodiment.

Reference numerals: 1. a box body; 2. a box cover; 3. a cavity is communicated; 4. an inner layer; 5. a hollow layer; 6. an outer layer; 41. a one-way air valve; 61. a one-way plunger; 21. a pressure sensor; 22. an alarm.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, an explosion-proof junction box comprises a box body 1, a box cover 2 and a through cavity 3, it is characterized in that the box body 1 is a four-way pipe type, the shell wall between the through cavities 3 is divided into three layers, wherein an inner layer 4, a hollow layer 5 and an outer layer 6 are arranged, wherein the hollow layer 5 separates the inner layer 4 from the outer layer 6, the inner layer 4 is provided with a plurality of one-way air valves 41 from the inner part of the inner layer 4 to the hollow layer 5, the outer layer 6 is provided with a plurality of through holes and is internally provided with a plunger 61 which moves towards the outside of the box body 1 when being stressed, the plunger 61 is made of elastic materials and is tightly attached with the through holes, one end of the plunger 61 close to the outer side of the box body 1 is also provided with a plug cap with a cross section larger than the column body of the plunger 61, so that the plunger 61 can move from inside to outside and pop up and cannot move from outside to inside under the condition that one end close to the hollow layer 5 is subjected to gas pressure. The box cover 2 is provided with a pressure sensor 21 and an alarm 22, and the box body 1 is internally provided with a plurality of wire fixing columns 7 for fixing pipelines.

As shown in fig. 1 and fig. 2, the fixing post 7 has an annular slot for fixing the pipeline, so that the pipeline inside the box is not wound together and interfered with each other. The box cover 2 is provided with the pressure sensor 21 and the alarm 22, the pressure sensor 21 and the alarm 22 are connected, installed and connected, when the pressure sensor 21 senses the air pressure exceeding a preset threshold value, the alarm 22 can give out sound for early warning to surrounding people, when no people overhaul or no people overhaul the alarm 22 after early warning, the gradually increased air pressure in the box can enable air to enter the hollow layer through the one-way air valve 41 and push the one-way plunger 61, when the one-way plunger 61 is pushed out by air, the accumulated energy of the air in most of the box can be reduced, when explosion cannot be prevented, the hollow layer is further buffered, and the explosion strength is further reduced.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. An explosion-proof junction box comprises a box body (1), a box cover (2) and a through cavity (3), and is characterized in that the box body (1) is arranged into a four-way pipe type, the shell wall of the box body (1) is divided into three layers and is arranged into an inner layer (4), a hollow layer (5) and an outer layer (6), the hollow layer (5) separates the inner layer (4) from the outer layer (6), the inner layer (4) is provided with a plurality of one-way air valves (41) leading to the hollow layer (5) from the inner layer (4), the outer layer (6) is provided with a plurality of through holes and is provided with a plunger (61), the plunger (61) moves out of the box body (1) and falls off when one end close to the hollow layer (5) is subjected to air pressure, the box cover (2) is provided with a pressure sensor (21) and an alarm (22), the pressure sensor (21) and the alarm (22) are connected and establish a control relationship, the box body (1) is internally provided with a plurality of wire fixing columns (7) for fixing pipelines.

2. The explosion-proof junction box of claim 1, wherein: the one-way air valves (41) are uniformly distributed on the inner layer (4).

3. The explosion-proof junction box of claim 1, wherein: plunger (61) are made by elastic material and in the through-hole close fitting, plunger (61) lean on one end in box body (1) outside is provided with the cross section and is greater than the stopper cap of plunger (61) shaft.

4. The explosion-proof junction box of claim 1, wherein: the pressure sensor (21) and the alarm (22) are connected and installed, wherein the control relationship is that when the pressure monitored by the pressure sensor (21) is greater than a preset threshold value, the alarm (22) is started.

5. The explosion-proof junction box of claim 1, wherein: the cable fixing post (7) is arranged at the bottom in the box body (1), and a clamping groove for fixing the direction of a pipeline is arranged in the cable fixing post (7).

6. The explosion-proof junction box of any one of claims 1 to 5, wherein: the box body (1) and the box cover (2) are both made of cast aluminum alloy.