Electric power explosion-proof power distribution cabinet

Abstract

The utility model discloses an electric power explosion-proof power distribution cabinet, belongs to the field of electric power distribution cabinets, and solves the problem of explosion caused by a gap between an explosion-proof door and an explosion-proof box body due to aging of a sealing gasket. The anti-explosion device comprises an anti-explosion box body and an anti-explosion door, a tensioning mechanism is arranged between the anti-explosion box body and the anti-explosion door, the tensioning mechanism comprises a rotating rod, a limiting block, a guide column, a guide seat and a spring, the rotating rod is rotationally connected to the anti-explosion door, the guide seat is fixed to the side portion of the anti-explosion box body, a guide hole is formed in the guide seat, the guide column is connected into the guide hole in a sliding mode, and the spring is arranged in the guide hole. A baffle is arranged at one end of the guide column, a spring is arranged between the baffle and the guide seat, the other end of the guide column is connected with a limiting block, a claw hook is arranged on the limiting block, hook grooves are formed in the rotating rod, and the claw hook is detachably connected with the hook grooves. And the limiting block can tension the rotating rod under the elastic action of the spring, so that the explosion-proof door is tensioned, the explosion-proof door is tightly attached to the explosion-proof box body, and the sealing performance of the interior of the explosion-proof box body is improved.

Description

Technical Field

[0001] The utility model belongs to the field of electric power distribution cabinets, and in particular relates to an electric power explosion-proof distribution cabinet. Background Art

[0002] When the electrical equipment in the explosion-proof distribution cabinet is working, it is inevitable that heat and sparks will be generated. If the sealing is not good, it is easy to come into direct contact with dangerous flammable and explosive gases and cause an explosion. Therefore, it is necessary to improve the sealing of the distribution cabinet.

[0003] However, most of the common distribution cabinets on the market are sealed by gaskets between explosion-proof doors and explosion-proof boxes. After long-term use, the gaskets may age, which may cause gaps between the explosion-proof doors and the explosion-proof boxes, allowing flammable and explosive gases to enter the explosion-proof boxes and cause accidents. Utility Model Content

[0004] The utility model aims to provide an electric explosion-proof distribution cabinet to solve the problem that the aging of the sealing gasket leads to a gap between the explosion-proof door and the explosion-proof box body, thereby causing an explosion.

[0005] The technical scheme of the utility model is: an electric explosion-proof distribution cabinet, comprising an explosion-proof box and an explosion-proof door, the explosion-proof door is hinged on the explosion-proof box, a sealing gasket is arranged at the joint of the explosion-proof box and the explosion-proof door, a tensioning mechanism is arranged between the explosion-proof box and the explosion-proof door, the tensioning mechanism comprises a rotating rod, a limit block, a guide column, a guide seat and a spring, the rotating rod is rotatably connected to the explosion-proof door, the guide seat is fixed to the side of the explosion-proof box, a guide hole is arranged on the guide seat, the guide column is slidably connected in the guide hole, a baffle is arranged at one end of the guide column, a spring is arranged between the baffle and the guide seat, the other end of the guide column is connected to the limit block, a grab hook is arranged on the limit block, a hook groove is arranged on each of the rotating rods, and the grab hook and the hook groove are detachably connected.

[0006] As a further improvement of the utility model, a hinge seat is provided on the side of the explosion-proof door, and the rotating rod is rotatably connected to the hinge seat.

[0007] As a further improvement of the utility model, a nitrogen box and an air pump are provided outside the explosion-proof box. The air inlet end of the air pump is connected to the nitrogen box through an air suction pipe, and the air outlet end of the air pump is connected to the explosion-proof box through an air inlet pipe. An air inlet valve is provided on the air inlet pipe, and an exhaust pipe is provided on the explosion-proof box, and an exhaust valve is provided on the exhaust pipe.

[0008] The beneficial effects of the utility model are:

[0009] 1. The utility model provides a tensioning mechanism between the explosion-proof box and the explosion-proof door. The limit block and the rotating rod are connected by a grab hook and a hook groove. At this time, the spring is in a stretched state. The limit block will tighten the rotating rod under the elastic force of the spring, and then tighten the explosion-proof door, so that the explosion-proof door fits tightly with the explosion-proof box, thereby improving the sealing inside the explosion-proof box.

[0010] 2. The utility model designs a nitrogen box on the explosion-proof box, and nitrogen can be filled into the explosion-proof box through an air pump to exhaust air, thereby improving the stability of the interior of the explosion-proof box. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a first overall structural schematic diagram of the utility model;

[0012] Figure 2 It is a structural schematic diagram of the tensioning mechanism in the utility model;

[0013] Figure 3 It is a second overall structural schematic diagram of the utility model;

[0014] Figure 4 It is a schematic diagram of the internal structure of the explosion-proof box in the utility model.

[0015] In the figure: 1-explosion-proof box; 2-explosion-proof door; 3-exhaust pipe; 4-air pump; 5-nitrogen box; 6-observation window; 7-rotating rod; 8-baffle; 9-spring; 10-guide seat; 11-limiting block; 12-guide column; 13-hinge seat; 14-inlet pipe; 15-wire outlet; 16-explosion-proof cable gland; 17-intake pipe; 18-catch hook; 19-hook groove. DETAILED DESCRIPTION

[0016] The utility model is described in detail below in conjunction with the accompanying drawings.

[0017] like Figure 1-4As shown, an electric explosion-proof distribution cabinet includes an explosion-proof box body 1 and an explosion-proof door 2. The bottom of the explosion-proof box body 1 is provided with a plurality of outlets 15, and the outlets 15 are provided with explosion-proof cable glands 16. The explosion-proof door 2 is provided with an observation window 6, and the observation window 6 is installed with explosion-proof glass; the explosion-proof door 2 is hinged on the explosion-proof box body 1, and a sealing gasket is provided at the joint of the explosion-proof box body 1 and the explosion-proof door 2. A tensioning mechanism is provided between the explosion-proof box body 1 and the explosion-proof door 2, and the tensioning mechanism includes a rotating rod 7, a limit block 11, a guide column 12, and a guide seat 10. And spring 9, the rotating rod 7 is rotatably connected to the explosion-proof door 2, the guide seat 10 is fixed to the side of the explosion-proof box 1, the guide seat 10 is provided with a guide hole, the guide column 12 is slidably connected in the guide hole, a baffle 8 is provided at one end of the guide column 12, a spring 9 is provided between the baffle 8 and the guide seat 10, the spring 9 surrounds the outer periphery of the guide column 12, the other end of the guide column 12 is connected to the limit block 11, the limit block 11 is provided with a grab hook 18, and a hook groove 19 is provided on the rotating rod 7, and the grab hook 18 and the hook groove 19 are detachably connected.

[0018] A hinge seat 13 is provided on the side of the explosion-proof door 2 , and the rotating rod 7 is rotatably connected to the hinge seat 13 .

[0019] A nitrogen box 5 and an air pump 4 are provided on the outside of the explosion-proof box 1. The air inlet end of the air pump 4 is connected to the nitrogen box 5 through an air suction pipe 17, and the air outlet end of the air pump 4 is connected to the explosion-proof box 1 through an air inlet pipe 14. An air inlet valve is provided on the air inlet pipe 14. An exhaust pipe 3 is provided on the explosion-proof box 1. The exhaust pipe 3 runs through the side wall of the explosion-proof box 1, and an exhaust valve is provided on the exhaust pipe 3.

[0020] When in use, after closing and locking the explosion-proof door 2, the guide column 12 is pulled by the limit block 11, and the guide column 12 drives the baffle 8 to squeeze the spring 9, aligning the catch 18 on the limit block 11 with the hook groove 19 on the rotating rod 7 and connecting them, loosening the limit block 11, the limit block 11 will tighten the rotating rod 7 under the action of the spring 9, and then tighten the explosion-proof door 2, so that the explosion-proof door 2 and the explosion-proof box 1 are closely fitted, improving the sealing inside the explosion-proof box 1. Even if the sealing gasket is aged, the explosion-proof door 2 can still be tightened by the tightening mechanism.

[0021] At the same time, the air inlet valve and the exhaust valve are opened, and the air pump 4 is turned on. The air pump 4 draws the nitrogen in the nitrogen box 5 into the explosion-proof box 1, and discharges the air in the explosion-proof box 1. Then, the air inlet valve, the exhaust valve and the air pump 4 are closed, so as to further improve the stability inside the explosion-proof box 1.

Claims

1. An electric explosion-proof distribution cabinet, comprising an explosion-proof box and an explosion-proof door, wherein the explosion-proof door is hinged on the explosion-proof box, and a sealing gasket is provided at the joint between the explosion-proof box and the explosion-proof door, characterized in that: A tensioning mechanism is provided between the explosion-proof housing (1) and the explosion-proof door (2), the tensioning mechanism comprising a rotating rod (7), a limit block (11), a guide column (12), a guide seat (10) and a spring (9), the rotating rod (7) being rotatably connected to the explosion-proof door (2), the guide seat (10) being fixed to the side of the explosion-proof housing (1), the guide seat (10) being provided with a guide hole, the guide column (12) being slidably connected in the guide hole, a baffle (8) being provided at one end of the guide column (12), a spring (9) being provided between the baffle (8) and the guide seat (10), the other end of the guide column (12) being connected to the limit block (11), the limit block (11) being provided with a grab hook (18), the rotating rod (7) being provided with a hook groove (19), the grab hook (18) being detachably connected to the hook groove (19).

2. The explosion-proof power distribution cabinet according to claim 1, characterized in that: A hinge seat (13) is provided on the side of the explosion-proof door (2), and the rotating rod (7) is rotatably connected to the hinge seat (13).

3. An explosion-proof power distribution cabinet according to claim 1 or 2, characterized in that: A nitrogen box (5) and an air pump (4) are provided outside the explosion-proof housing (1); an air inlet end of the air pump (4) is connected to the nitrogen box (5) via an air suction pipe (17); an air outlet end of the air pump (4) is connected to the explosion-proof housing (1) via an air inlet pipe (14); an air inlet valve is provided on the air inlet pipe (14); an exhaust pipe (3) is provided on the explosion-proof housing (1); and an exhaust valve is provided on the exhaust pipe (3).

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