B15-S fireproof bulkhead box

Abstract

The utility model belongs to the technical field of marine flame-retardant equipment, and relates to a B15-S fireproof bulkhead box. Comprising a box outer shell, a box inner shell, a supporting base, aluminum strips, preformed holes, fastening screws, metal clamping plates and the like. The whole box outer shell is of an integrated structure with the lower portion in a cylindrical shape and the upper portion in a circular truncated cone shape, preformed holes are formed in the side wall of the box outer shell, the box outer shell is installed outside the box inner shell in a nested mode, a supporting base on the lower portion of the box inner shell is composed of four end corners and arc edges between every two end corners, and inner fixing hole grooves and outer fixing grooves which are formed in the box inner shell in an axial symmetry mode are distributed at intervals. The box body is installed in the thin wall through fastening screws, metal clamping plates, outer fixing grooves and fastening plates, the box shell is provided with an aluminum strip sheet grid, and the box body is made of fireproof flame-retardant materials in an injection molding mode. The device is firm in installation, flame-retardant and high-temperature-resistant, the added aluminum strip grids have an anti-static effect, meanwhile, the structural stability is improved, and the device can be applied to thin-wall places such as cabin walls, indoor partition thin walls and temporary housing walls.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of marine flame -retardant equipment, relates to a marine fire -resistant bulkhead box with high temperature resistance and excellent flame -retardant performance has high temperature resistance, the function of flame -retardant reaches B15 grade ship fire -resistant grade, especially a kind of B15-S fireproof bulkhead box. BACKGROUND

[0002] The ship structure should meet the requirements of stability, strength, rigidity, vibration and noise reduction. Marine plastic devices should be made of corrosion-resistant, wear-resistant and high-temperature-resistant plastic materials, such as polyethylene and polypropylene. At the same time, the material of the device should have sufficient strength and rigidity to withstand the influence of ship rocking and vibration, so as to ensure that the device will not be deformed or damaged.

[0003] For the plastic of the ship fireproof area, fireproof insulation material needs to be used. According to the General Specification for Ships and the Fire Protection Requirements for Ships, the fire resistance level of ships is divided into A, B and C levels. The structural fireproof design needs to meet the fire resistance level requirements of the ship fireproof area and the cabin fireproof boundary specified in the specification. Thermal conductivity is the main indicator to measure the performance of fire-resistant materials, and it is an important physical parameter of fire-resistant materials. The smaller the thermal conductivity, the better the fire resistance.

[0004] The junction box is one of the auxiliary equipment for circuit layout. When installing the wire, the junction box is often used as a transition at the joint of the wire. The wire is connected and tapped in the junction box, and the junction box plays a role in protecting the safety of the wire connection, preventing electric shock and ensuring the stability of the connection. When the ship sails on the sea, the environment is harsh, the humidity is high, the salt spray corrosion ability is strong, and the ship swings obviously. Therefore, the marine junction box used on the ship requires light weight, high strength, corrosion resistance, stable connection, and in the ship cabin protection area, the marine junction box also requires fireproof and flame retardant characteristics.

[0005] However, the current marine junction box has poor high temperature resistance, poor flame retardant effect, and is not firmly installed. After ignition, it cannot effectively prevent the spread of fire, and the production cost is high. SUMMARY

[0006] The purpose of the present application is to overcome the shortcomings of the prior art, and to design a B15-S fireproof bulkhead box that is easy to use and has poor high temperature resistance, poor flame retardant effect and poor installation.

[0007] In order to achieve the above-mentioned purpose, the B15-S fireproof bulkhead box mainly comprises a box shell, a box inner shell, a supporting base, a reserved hole, a fixed plate slot, a fastening screw, a metal clamping plate, an outer fixed slot, a buckle fastening plate, an inner fixed hole slot and a fixed screw. The box shell is an integrated structure with a cylindrical lower part and a circular table-shaped upper part, the upper side wall of the box shell is provided with two or more reserved holes for passing through wires, the box shell is fixedly connected with the box inner shell, the box inner shell is integrally provided with the supporting base at the lower part, the supporting base is composed of four end corners and arc edges between every two end corners, the four protruding end corners of the supporting base increase the contact area between the box body and the thin wall, and the installation is more stable, a group of inner fixed hole slots are symmetrically arranged in the box inner shell, the fixed hole slots are in a cylindrical shape, and the fixed screw is threadedly connected with the inner fixed hole slot, a group of outer fixed slots are also symmetrically arranged in the box inner shell, the outer fixed slots are arranged at intervals with the fixed hole slots, the outer fixed slots pass through the box inner shell and are communicated with the box shell, the outer fixed slots are composed of a lower cylindrical slot cavity and a semi-cylindrical slot cavity which is recessed in the upper part of the box shell, the fastening screw penetrates into the outer fixed slot, the metal clamping plate is sleeved on the front middle part of the fastening screw, the front end of the fastening screw is threadedly provided with the buckle fastening plate, and the outer fixed slot is provided with the fixed plate slot at the front end.

[0008] One end of the metal clamping plate is provided with a through hole, the metal clamping plate is sleeved on the fastening screw through the through hole, the other end of the metal clamping plate is in a pointed shape, the pointed end of the metal clamping plate can be combined more closely with the thin wall during installation, the buckle fastening plate can abut against the through hole end of the metal clamping plate, and the buckle fastening plate limits and fixes the metal clamping plate.

[0009] The box shell is provided with a grid composed of two interwoven aluminum strips, the grid plays a role of preventing static electricity and has a flame-retardant effect when the product burns.

[0010] The side wall of the box shell is also provided with an expansion slot, the expansion slot provides a certain expansion space, and the risk of explosion of the B15-S fireproof bulkhead box is reduced.

[0011] In order to improve the stability and strength of the B15-S fireproof bulkhead box, the inner top edge of the box inner shell is symmetrically provided with a reinforcing rib.

[0012] The box shell and the box inner shell of the B15-S fireproof bulkhead box are formed by injection molding of a fireproof and flame-retardant material.

[0013] The B15-S fireproof bulkhead box is installed in the wall through slot of the thin wall, the fastening screw is rotated, the pointed end of the metal clamping plate is closely combined with one side of the thin wall, the metal clamping plate is limited and fixed by the buckle fastening plate, the supporting base is closely combined with the other side of the thin wall, the B15-S fireproof bulkhead box is fixed on the thin wall, and the circuit device is fixedly connected with the B15-S fireproof bulkhead box through the cooperation of the fixed screw and the inner fixed hole slot.

[0014] Further, the box inner shell is provided with one or more than one partition plate fixed in the box inner shell, the partition plate divides the groove cavity of the box inner shell, and the clamping plate reserved hole is arranged on the partition plate.

[0015] The technical effects achieved by the present application are:

[0016] (1) The B15-S fireproof bulkhead box improves the structural stability and installation stability through the unique structural design, the grid formed by the peripheral aluminum sheet not only plays a role in preventing static electricity when the product is burning, but also tightly wraps the product, slows down the spread of fire, and prolongs the escape time.

[0017] (2) The combination design of the fastening screw, the metal clamping plate, the outer fixing groove, and the buckle fastening plate better fixes the product and firmly locks the product without easily loosening.

[0018] (3) The combination of the integrally formed box outer shell and the box outer shell enhances the fireproof performance, the multiple inner fixing hole grooves and the corresponding fixing screws simplify the installation and maintenance process, the reinforcing ribs on the inner side of the box enhance the mechanical strength, the wiring reserved hole improves the safety, and the overall design meets the functionality while also considering the aesthetics, providing a safe, efficient, durable, and beautiful electrical installation solution for users. The B15-S fireproof bulkhead box can be applied to thin-walled places such as ship bulkheads, indoor partition thin walls, and temporary housing walls (construction site sheds, offices, etc.), and has a wide application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is an external structure principle diagram of the B15-S fireproof bulkhead box involved in the present application.

[0020] Figure 2 It is an internal structure principle diagram of the B15-S fireproof bulkhead box involved in the present application.

[0021] Figure 3 It is a schematic diagram of the installation of the B15-S fireproof bulkhead box involved in the present application.

[0022] Figure 4 It is a schematic diagram of the partition plate involved in the present application. DETAILED DESCRIPTION

[0023] The present application will be further described below through examples and in conjunction with the drawings.

[0024] Example 1

[0025] The B15-S fireproof bulkhead box of the embodiment comprises a box outer shell 1, a box inner shell 2, a support base 3, an aluminum strip 4, an expansion slot 5, a reserved hole 6, a fixed plate slot 7, a fastening screw 8, a metal clamping plate 9, an outer fixed slot 10, a buckle fastening plate 11, an inner fixed hole slot 12, and a fixed screw 13. Figure 1 As shown in the figure, the box outer shell is an integrated structure with a cylindrical lower part and a circular truncated cone upper part, the upper side wall of the box outer shell 1 is provided with two or more reserved holes 6, and the reserved holes 6 are used for passing through the wires after being punched through; the box outer shell 1 is nested and fixedly connected outside the box inner shell 2, and the box inner shell 2 is integrally provided with the support base 3 at the lower part. Figure 2 As shown in the figure, the support base 3 is composed of four end corners and circular arc edges between every two end corners, the four protruding end corners of the support base 3 increase the contact area between the box body and the thin wall (such as the cabin bulkhead), and the installation is more stable; a group of inner fixed hole slots 12 is symmetrically arranged inside the box inner shell 2, the fixed hole slots 12 are in the shape of a cylinder as a whole, and the fixed screw 13 is threadedly connected with the inner fixed hole slots 12; a group of outer fixed slots 10 is also symmetrically arranged inside the box inner shell 2, the outer fixed slots 10 are arranged at intervals with the fixed hole slots 12, the outer fixed slots 10 pass through the box inner shell 2 and are communicated with the box outer shell 1, and the outer fixed slots 10 are composed of a lower cylindrical slot cavity and a semi-cylindrical slot cavity which is recessed in the upper part of the box outer shell 1; the fastening screw 8 penetrates into the outer fixed slot 10, the metal clamping plate 9 is sleeved on the front middle part of the fastening screw 8, one end of the metal clamping plate 9 is provided with a through hole, the metal clamping plate 9 is sleeved on the fastening screw 8 through the through hole, the other end of the metal clamping plate 9 is in the shape of a sharp tip, the sharp tip of the metal clamping plate 9 can be combined more tightly with the thin wall during installation (the sharp tip of the metal clamping plate 9 penetrates into the thin wall to different degrees according to the different materials of the thin wall), the buckle fastening plate 11 is threadedly installed at the front end of the fastening screw 8, the buckle fastening plate 11 can abut against the through hole end of the metal clamping plate 9 during installation, and the buckle fastening plate 11 limits and fixes the metal clamping plate 9; the fixed plate slot 7 is arranged at the front end of the outer fixed slot 10, as shown in the figure, the fixed plate slot 7 is located at the top end of the box outer shell 1, and the fixed plate slot 7 is used for placing the buckle fastening plate 11 when the B15-S fireproof bulkhead box is packaged and transported, the fixed plate slot 7 fixes the buckle fastening plate 11 by relying on the friction force, and prevents the fastening screw 8, the metal clamping plate 9, and the buckle fastening plate 11 from moving greatly. Figure 1

[0026] The box outer shell 1 is provided with a grid composed of two aluminum strips 4, the grid not only plays a role in preventing static electricity when the product burns, but also tightly wraps the B15-S fireproof bulkhead box, reduces the burning and dripping of the B15-S fireproof bulkhead box and the splashing of fragments after explosion, and increases the flame retardant effect.

[0027] The side wall of the box outer shell 1 is also provided with the expansion slot 5, which provides a certain expansion space when an explosion occurs inside the B15-S fireproof bulkhead box, thereby reducing the risk of explosion of the B15-S fireproof bulkhead box. ​

[0028] To improve the stability and strength of the B15-S fireproof cabin wall box, reinforcing ribs are symmetrically arranged on the top edge of the inner shell 2.

[0029] The outer shell 1 and inner shell 2 of the B15-S fireproof bulkhead box are injection molded from fire-retardant materials. Through its unique structural design, the B15-S fireproof bulkhead box achieves structural stability and installation firmness. The grid formed by the outer aluminum sheet has the functions of anti-static and reducing combustion spread. It has high safety, beautiful structure, and can be used in thin-walled places such as ship bulkheads, thin interior partition walls, and temporary housing walls.

[0030] Example 2:

[0031] like Figure 3 As shown, the specific installation method of the B15-S fireproof cabin bulkhead box in Example 1 is as follows:

[0032] (1) Junction box fixing: A wall groove is opened on the thin wall such as the ship cabin plate, the thin wall of the interior partition, and the temporary housing (construction site shed, office, etc.). The B15-S fireproof cabin wall box is installed in the wall groove. Rotate the fastening screw 8 to make the pointed end of the metal plate 9 tightly connected with one side of the thin wall. Fasten the fastening plate 11 to hold the metal plate 9 against the wall for limiting and fixing. The support base 3 is tightly attached to the other side of the thin wall. The B15-S fireproof cabin wall box is fixed on the thin wall.

[0033] (2) Line introduction: According to the number of lines to be connected, use a drill bit or other tools to open the reserved hole 6 of the B15-S fireproof cabin wall box and put the pipeline into the internal cavity of the B15-S fireproof cabin wall box through the reserved hole 6.

[0034] (3) Connecting circuit components: Connect circuit components such as switches, plugs, and lamps to pipelines. Connect the circuit components to the B15-S fireproof enclosure box by using the fixing screws 13 and the inner fixing slots 12. In the thin-walled circuit installation environment, the B15-S fireproof enclosure box avoids the exposure of the line connection end, ensuring electrical safety. At the same time, when a fire occurs outside or inside the line connection end, it can effectively delay the spread of the fire.

[0035] Example 3:

[0036] The B15-S fireproof cabin wall box described in Example 1 has one or more partition plates 14 installed in the inner shell 2. The partition plates are fixed inside the inner shell 2 and divide the cavity of the inner shell 2 equally. When multiple wires enter the B15-S fireproof cabin wall box for connection, the partition plates 14 can reduce the mutual interference of multiple connection wires and improve safety.

[0037] like Figure 4As shown, the partition plate 14 is provided with a clamping plate reserved hole 15. When the line entering the internal slot cavity of the junction box needs to be divided into two branches for connection, the clamping plate reserved hole 15 is punched through, so that one branch of the slot cavity on one side of the partition plate 14 passes through the clamping plate reserved hole 15 into the slot cavity on the other side of the partition plate 14, and the circuit is connected.

Claims

1. A B15-S fire protected bulkhead enclosure, characterized by: The main structure comprises a box shell, a box inner shell, a support base, a reserved hole, a fixed plate groove, a fastening screw, a metal clamping plate, an outer fixing groove, a buckle fastening plate, an inner fixing hole groove and a fixing screw; the box shell is an integrated structure with a cylindrical lower part and a circular truncated cone upper part, two or more reserved holes are arranged on the upper side wall of the box shell, the box shell is fixedly connected outside the box inner shell, and the box inner shell is integrally provided with the support base at the lower part; the support base is composed of four end corners and arcs between every two end corners, a group of inner fixing hole grooves are arranged inside the box inner shell in an axisymmetric mode, and the fixing screw is in threaded connection with the inner fixing hole groove; a group of outer fixing grooves are also arranged inside the box inner shell in an axisymmetric mode, and the outer fixing grooves are arranged at intervals with the fixing hole groove; the fastening screw penetrates into the outer fixing groove, the metal clamping plate is sleeved on the front middle part of the fastening screw, the buckle fastening plate is installed on the front end of the fastening screw in a threaded mode, and the fixed plate groove is arranged at the front end of the outer fixing groove and located at the top end of the box shell.

2. The B15-S fire protected bulkhead box of claim 1, wherein: The outer fixing groove penetrates out of the box inner shell and communicates with the box shell, and the outer fixing groove is composed of a lower cylindrical groove cavity and a semi-cylindrical groove cavity which is recessed in the upper part of the box shell; one end of the metal clamping plate is provided with a through hole, the metal clamping plate is sleeved on the fastening screw through the through hole, the other end of the metal clamping plate is in the form of a sharp head, the sharp head end of the metal clamping plate can be combined more closely with the thin wall during installation, the buckle fastening plate can abut against the through hole end of the metal clamping plate, and the buckle fastening plate limits and fixes the metal clamping plate.

3. The B15-S fire protected bulkhead box of claim 2, wherein: The box shell is provided with a grid composed of two interwoven aluminum strips.

4. The B15-S fire protected bulkhead box of claim 3, wherein: The fixing hole groove is in the form of a cylinder as a whole.

5. The B15-S fireproof bulkhead box of claim 1, wherein: An expansion expansion groove is further arranged on the side wall of the box shell.

6. The B15-S fire protected bulkhead box of claim 1, wherein: A reinforcing rib is symmetrically arranged at the top end edge inside the box inner shell.

7. The B15-S fire protected bulkhead box of claim 6, wherein: The box shell and the box inner shell are both made of fireproof and flame-retardant materials and are injection molded.

8. The B15-S fire protected bulkhead box of claim 7, wherein: The B15-S fireproof bulkhead box is installed in the wall through groove of the thin wall, the fastening screw is rotated, the sharp head end of the metal clamping plate is closely combined with one side of the thin wall, the buckle fastening plate limits and fixes the metal clamping plate, the support base is closely combined with the other side of the thin wall, and the B15-S fireproof bulkhead box is fixed on the thin wall; the circuit device is fixedly connected with the B15-S fireproof bulkhead box through cooperation between the fixing screw and the inner fixing hole groove.

9. The B15-S fire protected bulkhead box of claim 8, wherein: The box inner shell is provided with one or more than one partition plate, the partition plate is fixed in the box inner shell, and the partition plate divides the groove cavity of the box inner shell.

10. The B15-S fire protected bulkhead box of claim 9, wherein: A clamping plate reserved hole is arranged on the partition plate.

Images