Fireproof cassette of ship bulkhead

Abstract

The utility model discloses a fireproof cassette of a ship bulkhead, which comprises a cassette shell, the cassette shell is embedded in the ship bulkhead, a switch element is embedded in the cassette shell, a cable outlet hole is arranged at the bottom of an inner cavity of the cassette shell, a through hole is arranged on the wall of the inner cavity of the cassette shell, and the through hole is communicated with the switch element. The cassette shell is fixedly installed on the ship bulkhead through a screw rod and a sliding fixing block, the sliding fixing block moves in the axial direction of the screw rod to achieve locking, the sliding fixing block abuts against the ship bulkhead, and the screw rod is located in the penetrating through hole. According to the fireproof cassette of the ship bulkhead, the screw rod is rotated through the thread rotating tool, flames can be effectively blocked, the structure of the ship bulkhead cannot be damaged, and installation of electrical equipment such as a ship electrical switch and a lamp is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fireproof box, especially a fireproof box of a ship bulkhead. BACKGROUND

[0002] Most of the conventional ship boxes are made of flame-retardant plastic particles by injection molding, which cannot meet the fireproof requirements. When the box shell encounters open fire or high temperature, although the flame-retardant plastic particles can self-extinguish within a specified time, the cables in the box shell and cavity will burn or form liquid flow, leak out of the cable outlet hole or burn through the box, and the flame (smoke, heat, etc.) passes through the through hole, thus failing to meet the B15 fireproof grade requirement. Moreover, most of the box shells will produce toxic gases (PVC combustion generates hydrogen chloride; PS combustion generates benzene, toluene, styrene; PC combustion generates phenolic compounds; PA combustion generates nitrogen oxides, etc.) according to the combustion of different materials. A ship usually carries a large number of passengers or crew. Once a fire occurs, the flame will directly spread to the adjacent wall due to the stronger sea wind compared to land, and there is basically no time for self-rescue, fire extinguishing and escape. Compared with land, sea rescue is more difficult. By the time the rescue arrives, the fire has basically burned out, which often leads to serious personnel casualties and economic property losses. Fire caused by oil leakage may cause serious pollution to the ocean. Therefore, the ship box is not conducive to the use of the ship, and the raw material price is high and not environmentally friendly.

[0003] In addition, most of the existing ship boxes use self-adhesive fixing fins, which are manually cut and attached to the box shell without direction reference, which is prone to misalignment and wrinkles, and needs to be re-torn and adjusted for attachment, which not only wastes manpower and resources, but also lacks aesthetic and practicality, and even needs to be scrapped and reattached in severe cases. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem to provide a fireproof box of a ship bulkhead, which can effectively block the flame and will not damage the structure of the ship bulkhead, and is more conducive to the installation of electrical equipment such as electrical switches and lamps on the ship.

[0005] The utility model provides a fireproof box of a ship bulkhead, which comprises a box shell, the box shell is embedded in the ship bulkhead, wherein the switch element is embedded in the box shell, the cable outlet hole is arranged at the bottom of the inner cavity of the box shell, the through hole is arranged on the inner cavity wall of the box shell, the box shell is fixedly installed on the ship bulkhead through the screw rod and the sliding fixing block, the sliding fixing block moves along the axial direction of the screw rod to realize locking, so that the sliding fixing block abuts against the ship bulkhead, and the screw rod is located in the through hole.

[0006] Furthermore, there are two screws, symmetrically distributed on both sides of the inner wall of the dark box housing.

[0007] Furthermore, one end of the sliding fixing block is provided with a threaded hole for the screw to enter, and the other end of the sliding fixing block forms a bent part that fits against the ship's bulkhead.

[0008] Furthermore, a fixed heat sink is provided at the bottom of the dark box housing. The fixed heat sink is arranged in a cross shape at the bottom of the dark box housing and is folded upward to fit against the outer wall of the dark box housing.

[0009] Furthermore, the material of the dark box housing is expandable graphite composite flame-retardant PP.

[0010] Compared with the prior art, the present invention has the following advantages: The fireproof box for ship bulkheads provided by the present invention will expand rapidly when the front of the box shell is exposed to flames or high temperatures, and the exposed cable outlet holes and through holes will be filled with expanded carbides, which can effectively block flames; at the same time, by rotating the screw with a threaded rotating tool, the sliding fixing block moves axially along the thread of the screw to install and fix it, which does not damage the structure of the ship bulkhead. The screw design does not require the reservation of the distance of the installation screw hole in the ship bulkhead, and the internal cavity can be designed to be larger, which is more conducive to the installation of ship electrical switches, lamps and other electrical equipment. Attached Figure Description

[0011] Figure 1 This is a wiring diagram of the fireproof junction box for the ship bulkhead of this utility model.

[0012] Figure 2 This is a schematic diagram of the cross-sectional installation structure of the fireproof concealed box for the ship bulkhead according to this utility model.

[0013] Figure 3 This is a schematic diagram of the explosion structure of the fireproof box in the ship bulkhead of this utility model.

[0014] The diagram is marked as follows:

[0015] 1. Box housing 2. Ship bulkhead 3. Box interior cavity

[0016] 4. Cable 5. Sliding fixing block 6. Screw

[0017] 7. Fixed heat sink 8. Switching element 9. Cable outlet hole

[0018] 10 Through Holes Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a wiring diagram of the fireproof junction box for the ship bulkhead of this utility model.Figure 2 This is a schematic diagram of the cross-sectional installation structure of the fireproof concealed box for the ship bulkhead according to this utility model. Figure 3 This is a schematic diagram of the explosion structure of the fireproof box in the ship bulkhead of this utility model.

[0021] Please see Figure 1 , Figure 2 and Figure 3 The fireproof concealed box for ship bulkheads provided by this utility model includes a concealed box housing 1, which is embedded in the ship bulkhead 2. A switch element 8 is embedded in the concealed box housing 1. A cable outlet hole 9 is provided at the bottom of the inner cavity of the concealed box housing 1, through which a cable 4 passes and connects to the switch element 8. A through hole 10 is provided in the inner wall of the concealed box housing 1. The concealed box housing 1 is fixedly installed on the ship bulkhead 2 by a screw 6 and a sliding fixing block 5. The sliding fixing block 5 is locked by moving along the axial direction of the screw 6, so that the sliding fixing block 5 abuts against the ship bulkhead 2. The screw 6 is located in the through hole 10.

[0022] This utility model provides a fireproof concealed box for ship bulkheads. When the concealed box is installed on the front of the ship bulkhead and encounters an open flame or high temperature, the front of the concealed box shell 1 will rapidly expand under the influence of the flame or high temperature. Even if the cable 4 pulled out from the opening in the inner cavity of the concealed box shell is burned into ash or forms liquid and flows away, the exposed cable outlet hole 9 and through hole 10 will be filled with expanded carbides. This prevents the flame (smoke, heat, etc.) from penetrating to the back of the concealed box shell 1, preventing the flame from spreading and giving crew or passengers time to extinguish the fire and escape, thus protecting property and lives in a timely manner. Preferably, the concealed box shell 1 is made of expandable graphite composite flame-retardant PP, and the products of complete combustion are CO2 and H2O. This characteristic not only reduces harm to the human body but also has virtually no pollution to the environment, making it more environmentally friendly. Compared with concealed boxes made of other materials, the raw material price of this concealed box is relatively lower, making it easier to promote and popularize.

[0023] This utility model provides a fireproof concealed box for a ship bulkhead. The box housing 1 is fixedly installed on the ship bulkhead 2 by a screw 6 and a sliding fixing block 5. The sliding fixing block 5 moves axially along the screw 6 to achieve locking, so that the sliding fixing block 5 and the ship bulkhead 2 abut against each other. During installation, the box housing 1 is embedded in the ship bulkhead 2. The screw 6 is rotated by a threaded rotating tool, and the sliding fixing block 5 moves axially along the thread of the screw 6 to be installed and fixed. There are two screws 6, symmetrically distributed on both sides of the box housing 1. One end of the sliding fixing block 5 is provided with a threaded hole for the screw 6 to enter, and the other end of the sliding fixing block 5 forms a bent part to fit against the ship bulkhead 2 for better locking and fixing.

[0024] The fireproof concealed box for ship bulkheads provided by this utility model has a fixed heat dissipation fin 7 at the bottom of the concealed box housing 1. The fixed heat dissipation fin 7 is arranged in a cross shape at the bottom of the concealed box housing 1 and is folded upward to fit against the outer wall of the concealed box housing 1 in order to better achieve heat dissipation.

[0025] In summary, the fireproof concealed box for ship bulkheads provided by this utility model allows the front of the box housing 1 to expand rapidly when exposed to flames or high temperatures. The exposed cable outlet hole 9 and through hole 10 will be filled with expanded carbides, effectively blocking flames. At the same time, by rotating the screw 6 with a threaded rotating tool, the sliding fixing block 5 moves axially along the thread of the screw 6 for installation and fixation. This does not damage the structure of the ship bulkhead 2. The screw design does not require the pre-reserved distance for the installation screw hole of the ship bulkhead. The inner cavity 3 of the concealed box can be designed to be larger, which is more conducive to the installation of electrical equipment such as ship electrical switches and lamps.

[0026] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A fireproof concealed box for a ship bulkhead, comprising a box housing (1), the box housing (1) being embedded in a ship bulkhead (2), characterized in that, A switch element (8) is embedded in the housing (1). A cable outlet hole (9) is provided at the bottom of the inner cavity of the housing (1). A through hole (10) is provided in the inner wall of the housing (1). The housing (1) is fixedly installed on the ship bulkhead (2) by a screw (6) and a sliding fixing block (5). The sliding fixing block (5) is locked by moving along the axial direction of the screw (6), so that the sliding fixing block (5) and the ship bulkhead (2) abut against each other. The screw (6) is located in the through hole (10).

2. The fireproof concealed box for a ship bulkhead as described in claim 1, characterized in that, The number of screws (6) is two, which are symmetrically distributed on both sides of the inner wall of the dark box housing (1).

3. The fireproof concealed box for a ship bulkhead as described in claim 1, characterized in that, One end of the sliding fixing block (5) is provided with a threaded hole for the screw (6) to enter, and the other end of the sliding fixing block (5) forms a bent part that fits against the ship's bulkhead (2).

4. The fireproof concealed box for a ship bulkhead as described in claim 1, characterized in that, The bottom of the dark box housing (1) is provided with a fixed heat sink (7). The fixed heat sink (7) is arranged in a cross shape at the bottom of the dark box housing (1) and is folded upward to fit against the outer wall of the dark box housing (1).

5. The fireproof concealed box for a ship's bulkhead as described in claim 1, characterized in that, The material of the dark box housing (1) is expandable graphite composite flame retardant PP.

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