Protective closed junction box structure for closed partition wall of civil air defense basement

Abstract

The utility model discloses a protective closed junction box structure for a closed partition wall of a civil air defense basement, which comprises a floor slab and a closed partition wall integrally arranged at the lower part of the floor slab, an electric sleeve is arranged in the floor slab, and a closed junction box is respectively arranged on two sides of the closed partition wall in the floor slab. The two ends of the electrical sleeve are respectively connected to a closed junction box; a protective cover is detachably mounted at an opening of a closed junction box, a wire holder is fixedly arranged in the closed junction box, a flexible sealing element is fixedly mounted in the protective cover, and when the protective cover is mounted on the closed junction box, the flexible sealing element is in contact with the wire holder to divide the closed junction box into two independent areas. The structure has high shock wave resistance and good leakproofness, can prevent gas and water, and is simple and compact in structure, convenient to construct and install and high in construction percent of pass.

Description

TECHNICAL FIELD

[0001] The utility model relates to a construction technology field of civil air defence basement junction box installation, specifically relates to a kind of protective airtight junction box structure for civil air defence basement airtight partition wall. BACKGROUND

[0002] Civil air defence basement has the effect of preventing air raid and nuclear weapon, biochemical weapon attack in wartime, so there are many differences between the design, construction and equipment facilities of engineering and ordinary basement. In order to ensure the water, electricity and ventilation needs of civil air defence basement in wartime, the airtight wall penetrating sleeve should be pre-buried for each professional pipeline crossing the wall of civil air defence basement. It can prevent shock wave and toxic gas when the pipeline crosses the wall. At present, many basements are not all civil air defence basements. In order to smoothly convert from peacetime to wartime, it is very important to correctly and standardize the pre-burial of airtight wall penetrating sleeve. The construction method of existing civil air defence basement airtight wall penetrating sleeve has low pass rate in the process of civil air defence acceptance, and the engineering quality needs to be further improved. SUMMARY

[0003] The utility model aims at providing a kind of protective airtight junction box structure for civil air defence basement airtight partition wall, which has strong shock wave resistance, good airtightness, gas and water resistance, simple and compact structure, easy construction and installation, and high construction qualification rate.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] A kind of protective airtight junction box structure for civil air defence basement airtight partition wall, comprising a floor and an airtight partition wall integrally arranged in the lower part of the floor, an electrical conduit is arranged in the floor, one airtight junction box is arranged on each side of the airtight partition wall in the floor, and the two ends of the electrical conduit are connected to one of the airtight junction boxes; a protective cover is detachably installed at the opening of the airtight junction box, a terminal block is fixedly arranged in the airtight junction box, and a flexible sealing element is fixedly installed inside the protective cover; when the protective cover is installed on the airtight junction box, the flexible sealing element contacts the terminal block, dividing the airtight junction box into two independent areas.

[0006] Preferably, the electrical conduit is a hot-dipped galvanized steel pipe with a wall thickness not less than 2.5 mm.

[0007] Preferably, one or more airtight ribs are arranged on the outer wall of the electrical conduit.

[0008] Preferably, the airtight rib is a hot-dipped galvanized steel plate with a plate thickness not less than 5 mm.

[0009] Preferably, airtight filler is arranged in the airtight junction box.

[0010] Preferably, a sealing gasket is arranged on the protective cover, and the sealing gasket seals the connection between the protective cover and the sealed junction box.

[0011] Preferably, a through hole is arranged on the protective cover, and a sealing plug is detachably arranged on the through hole.

[0012] In the utility model, the two sealed junction boxes are arranged on the two sides of the sealed partition wall, the cable can be connected through the wall, and the electrical connection or signal connection between the two sides can be realized while the shock wave is blocked. The sealed ribs improve the stability of the installation of the electrical sleeve. The flexible sealing element can divide the sealed junction box into two independent areas. When the external toxic gas or toxic water flows into the sealed junction box through the electrical sleeve from the outside, the toxic gas or toxic water can be guided to the designated area through the through hole, and the protective capacity is high, and the diffusion of the toxic gas or toxic water along the electrical sleeve is avoided. The sealing gasket can seal the connection between the protective cover and the sealed junction box, and the overall sealing property is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall structure section schematic view of the utility model;

[0014] Figure 2 It is the sealed junction box structure exploded view of the utility model;

[0015] In the drawing: 1, floor; 2, sealed partition wall; 3, electrical sleeve; 4, sealed rib; 5, sealed junction box; 6, protective cover; 7, junction seat; 8, flexible sealing element; 9, through hole; 10, sealing plug. DETAILED DESCRIPTION

[0016] The utility model is further described below in combination with the drawings:

[0017] As shown in Figure 1 And Figure 2 The utility model discloses a protective sealed junction box structure for sealed partition wall of civil air defense basement, including floor 1 and the sealed partition wall 2 of integrally cast setting in the lower part of floor 1, can set up protective sealed door or temporary war plugging structure in sealed partition wall 2. The electrical sleeve 3 is embedded in the floor 1, and the electrical sleeve 3 is made of hot-dip galvanized steel pipe, and the wall thickness of the hot-dip galvanized steel pipe is not less than 2.5 mm. One or more sealed ribs 4 are fixedly arranged on the outer wall of the electrical sleeve 3. The sealed rib 4 is made of hot-dip galvanized steel plate, and the plate thickness of the hot-dip galvanized steel plate is not less than 5 mm. The sealed rib 4 improves the installation stability of the electrical sleeve 3.

[0018] The closed junction box 5 is arranged on the inner and outer sides of the closed partition wall 2 in the floor 1, and the two ends of the electric sleeve 3 are connected to the closed junction box 5 through bolts and sealing pads, respectively, and the closed junction box 5 is provided with a connecting hole matched with the electric sleeve 3. When the junction is completed, the gap in the closed junction box 5 is filled with a closed filler for sealing. The distance between the closed junction box 5 and the closed partition wall 2 is not less than 300 mm.

[0019] The protective cover 6 is detachably mounted on the opening of the closed junction box 5 through fasteners, and the junction seat 7 is fixedly arranged in the closed junction box 5, which is located at the middle position of the bottom of the closed junction box 5 and divides the closed junction box 5 into two parts. The flexible sealing member 8 is fixedly mounted inside the protective cover 6, and when the protective cover 6 is mounted on the closed junction box 5, the flexible sealing member 8 is in contact with the junction seat 7 and divides the closed junction box 5 into two independent areas. Specifically, a plurality of junction columns are arranged on the junction seat 7, and the junction columns are used to connect two cables to be connected. A rubber pad is arranged on the top of the junction seat 7, and a groove is arranged on the rubber pad. The cables that do not need to be connected are arranged in the groove, and when the protective cover 6 is installed, the cables that do not need to be connected can be sealed and fixed between the rubber pad and the flexible sealing member 8. The problem of loose sealing of the closed filler is solved. Of course, in the case of protection and other non-extreme cases, the closed filler can not be used, and the closed junction can be realized only through the flexible sealing member 8 and the junction seat 7, which is convenient for dismounting the cables on the junction seat 7.

[0020] A sealing pad made of rubber material is arranged on the protective cover 6, which seals the connection between the protective cover 6 and the closed junction box 5 and improves the sealing performance. The protective cover 6 is provided with a through hole 9, and a sealing plug 10 is detachably arranged on the through hole 9. When the enemy flows the toxic gas or toxic water from the external closed junction box 5 into the electric sleeve 3, the protective personnel can guide the toxic gas or toxic water to the designated area through the through hole 9, which has strong protective ability and avoids the diffusion of the toxic gas or toxic water along the electric sleeve 3.

[0021] The above embodiments are only a number of descriptions of the concept and implementation of the present application, and are not limited thereto. Under the concept of the present application, the technical solutions without substantial changes are still within the protection scope.

Claims

1. A protective sealing junction box structure for airtight partition wall of a civil air defense basement, comprising a floor and an airtight partition wall integrally arranged at a lower portion of the floor, characterized in that: An electrical sleeve is arranged in the floor, and airtight junction boxes are arranged in the floor on both sides of the airtight partition, both ends of the electrical sleeve being connected to one of the airtight junction boxes; a protective cover is detachably arranged at the opening of the airtight junction box, a junction seat is fixedly arranged in the airtight junction box, and a flexible sealing member is fixedly arranged inside the protective cover; when the protective cover is arranged on the airtight junction box, the flexible sealing member is in contact with the junction seat, and the airtight junction box is divided into two independent areas.

2. The protective sealing junction box structure for the sealed partition wall of the civil air defense basement according to claim 1, characterized in that: The electrical sleeve is a hot-dip galvanized steel pipe, and the wall thickness of the hot-dip galvanized steel pipe is not less than 2.5 mm.

3. The protective sealing junction box structure for a sealed partition wall of a civil air defense basement according to claim 1 or 2, characterized in that: One or more airtight ribs are arranged on the outer wall of the electrical sleeve.

4. The protective sealing junction box structure for the sealed partition wall of the civil air defense basement according to claim 3, characterized in that: The airtight rib is a hot-dip galvanized steel plate, and the plate thickness of the hot-dip galvanized steel plate is not less than 5 mm.

5. The protective sealing junction box structure for the sealed partition wall of the civil air defense basement according to claim 1 or 4, characterized in that: An airtight filler is arranged in the airtight junction box.

6. The protective sealing junction box structure for the sealed partition wall of the civil air defense basement according to claim 1, characterized in that: A sealing gasket is arranged on the protective cover, and the sealing member seals the connection between the protective cover and the airtight junction box.

7. The protective sealing junction box structure for the sealed partition wall of the civil air defense basement according to claim 1, characterized in that: A through hole is arranged on the protective cover, and a sealing plug is detachably arranged on the through hole.

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