A distribution box for a marine fire extinguishing system

Abstract

The application discloses a distribution box for a ship fire extinguishing device and relates to the technical field of distribution boxes.The distribution box comprises a distribution box body, a distribution box door is arranged on the front side of the distribution box body, and door opening expansion mechanisms are symmetrically arranged on the front side of the distribution box body and correspond to the distribution box door, so that the distribution box door can be rotated to the maximum opening distance when the distribution box is maintained.The distribution box for the ship fire extinguishing device can be used for the following purposes: when the distribution box is maintained, the distribution box door can be pulled away from the distribution box beside it by a certain distance by using the cooperation between the connecting gear and the connecting rack during the opening of the distribution box door, the distribution box door can be rotated to open by 180 degrees, a larger maintenance space is left, the maintenance efficiency of the maintenance personnel is improved, and the distribution box can be used to control and distribute the fire extinguishing equipment of the ship in time.

Description

Technical Field

[0001] This invention relates to the field of distribution box technology, specifically to a distribution box for a ship fire extinguishing system. Background Technology

[0002] The distribution box of a ship's fire extinguishing system is a device used for centralized control and distribution of power to supply various fire extinguishing equipment. It is usually a box containing electrical components and connectors, used to receive electrical energy from the power system and distribute it to the various components of the fire extinguishing system. During normal operation, the circuit can be connected or disconnected by manual or automatic switches. In case of failure or abnormal operation, the circuit is cut off or an alarm is triggered by protective electrical devices. Various parameters during operation can be displayed by measuring instruments, and some electrical parameters can be adjusted. It can also provide prompts or signals for deviations from normal operating conditions.

[0003] When existing distribution boxes are placed on ships, limited space is a common problem due to the mobile nature of the vessels. Therefore, multiple distribution boxes are usually placed side-by-side to save space by minimizing the distance between them. However, when maintaining or repairing the internal components of the distribution boxes, the close spacing causes interference between the boxes and adjacent boxes, restricting their opening and making the maintenance space cramped. This hinders maintenance personnel and affects efficiency. Furthermore, when ships are at sea, the movement caused by waves can make the opened boxes unstable, potentially posing a collision risk to maintenance personnel and creating safety hazards. Summary of the Invention

[0004] The purpose of this invention is to provide a distribution box for a ship fire extinguishing system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a distribution box for a ship fire extinguishing device, comprising a distribution box body, wherein a distribution box door is provided on the front side of the distribution box body;

[0006] The front side of the distribution box is symmetrically provided with an opening and expansion mechanism corresponding to the distribution box door, so that the distribution box door can be rotated to the maximum opening distance when the distribution box is being maintained.

[0007] The side of the dispensing box door facing the dispensing box body is provided with an opening and flipping mechanism to facilitate maintenance personnel to retrieve and search for tools when the dispensing box is being maintained.

[0008] The side of the distribution box door away from the distribution box body is provided with an opening and fixing mechanism so that the distribution box door can be quickly fixed when the distribution box is being maintained.

[0009] Preferably, the door opening and expansion mechanism includes an extended outer shell, with the same side wall of the two extended outer shells fixedly connected to the front corner of the dispensing box, and an expansion groove provided on the side wall of the two extended outer shells that are close to each other. Connecting columns are fixedly connected to the upper and lower outer walls of the dispensing box door, and the upper and lower outer walls of the dispensing box door slide against the side wall of the two extended outer shells that are close to each other. The opposite end faces of the two connecting columns slide against the inner wall of the expansion groove.

[0010] Preferably, a connecting gear is fixedly connected to the outer wall of the connecting column, and a connecting rack is fixedly connected to the inner wall of the expansion groove corresponding to the connecting gear. One side of the connecting gear meshes with the connecting rack. A slider is rotatably connected to the outer wall of the connecting column, and the outer wall of the slider slides against the inner wall of the expansion groove. A circular groove is formed on the side wall of the two sliders that are close to each other. A first torsion spring is fitted against the outer wall of the connecting column. One end of the first torsion spring overlaps the outer wall of the connecting column, and the other end of the first torsion spring overlaps the inner wall of the circular groove.

[0011] Preferably, the door opening and flipping mechanism includes a support block, and one side wall of the support block is fixedly connected to the side of the dispensing box door facing the dispensing box body. A rotating rod is rotatably connected inside the support block, and a winding groove is provided on the outer wall of the rotating rod. A pull rope is wound around the inner wall of the winding groove, and the other end of the pull rope is fixedly connected to the inner wall of the dispensing box body. A connecting frame is threadedly connected to the outer wall of the rotating rod, and one side wall of the connecting frame slides against the side of the dispensing box door facing the dispensing box body.

[0012] Preferably, the distribution box door is symmetrically and fixedly connected to a support frame on one side facing the distribution box body, and a vertical groove is opened through one side wall of the support frame. A flip groove is opened through one side wall of the support frame, and the inner wall of the flip groove is connected and matched with the inner wall of the vertical groove. A support plate is provided on the side wall of the two support frames that are close to each other, and a first shaft is fixedly connected to the two side walls of the support plate. The outer wall of the first shaft slides against the inner wall of the vertical groove. A second shaft is fixedly connected to the two side walls of the support plate, and the outer wall of the second shaft slides against the inner wall of the flip groove. The two inner walls of the connecting frame are rotatably connected to the two ends of the first shaft that are far apart.

[0013] Preferably, the tray has a groove on one side facing the dispensing box door, and a first spring is fixedly connected to the inner wall of the groove. An auxiliary plate is fixedly connected to the other end of the first spring, and the outer wall of the auxiliary plate slides against the inner wall of the groove. The auxiliary plate and the groove form a telescopic structure through the first spring. The dispensing box door has a telescopic groove on one side facing the dispensing box body, and a second spring is fixedly connected to the inner wall of the telescopic groove. An auxiliary push block is fixedly connected to the other end of the second spring, and the outer wall of the auxiliary push block slides against the inner wall of the telescopic groove.

[0014] Preferably, a second torsion spring is fitted to the outer wall of the rotating rod, with one end of the second torsion spring overlapping the outer wall of the rotating rod and the other end of the second torsion spring overlapping the bottom of the support block.

[0015] Preferably, the door opening and fixing mechanism includes a fixed shell, and one side wall of the fixed shell is fixedly connected to the side of the distribution box door away from the distribution box body. A limiting groove is formed on one side wall of the fixed shell, and a tension spring is fixedly connected to the inner wall of the limiting groove. A fixing plate is fixedly connected to the other end of the tension spring, and the outer wall of the fixing plate slides against the inner wall of the limiting groove. A guide rod is provided inside the fixing plate, and a switching slide groove is formed on one side of the distribution box door corresponding to the guide rod, and the outer wall of the guide rod slides against the inner wall of the switching slide groove.

[0016] Preferably, the fixing plate has a guide groove on the side wall facing the distribution box door corresponding to the guide rod, the side of the distribution box door facing the distribution box body is fixedly connected to the mounting block, and the inside of the mounting block is slidably connected to the guide rod corresponding to the trigger rod. The side wall of the guide rod facing the trigger rod is inclined, the side of the trigger rod near the top of the guide rod is fixedly connected to the limit block, and the end of the trigger rod facing the auxiliary push block is inclined.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. When maintaining the distribution box, the connecting gear and rack can be used to move forward a certain distance during the opening of the distribution box door, allowing the distribution box door to be opened 180 degrees, providing a large maintenance space. This improves the maintenance efficiency of maintenance personnel and facilitates the timely redistribution of the ship's fire extinguishing equipment using the distribution box.

[0019] 2. When repairing the distribution box, the pull rope can be used to lower the tray during the opening of the distribution box door. When the distribution box door is fully opened, the flip-top groove can be used to automatically flip the tray flat, allowing maintenance personnel to place the toolbox on the tray surface. This makes it easier to retrieve and search for tools during maintenance, thus improving maintenance efficiency.

[0020] 3. When repairing the distribution box, the auxiliary push block and guide rod can be used to push the fixing plate into the gap between the distribution box body and the distribution box door during the process of flipping and laying the pallet flat. This allows for quick fixing of the distribution box door, ensuring the stability of the distribution box door during sea voyages and thus ensuring the safety of maintenance personnel during maintenance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a structural diagram illustrating the overall maintenance state of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the first part of the door opening and expansion mechanism of the present invention;

[0024] Figure 4 This is a schematic diagram of the second part of the door opening and expansion mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the first part of the door opening and flipping mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the second part of the door opening and flipping mechanism of the present invention;

[0027] Figure 7 This is a schematic diagram of the door opening and fixing mechanism of the present invention.

[0028] In the diagram: 1. Dispensing box; 2. Dispensing box door; 6. Switching slide; 3. Door opening and expansion mechanism; 301. Extended outer shell; 302. Expansion groove; 303. Connecting column; 304. Connecting gear; 305. Connecting rack; 306. Slider; 307. Circular groove; 308. First torsion spring; 4. Door opening and flipping mechanism; 401. Support block; 402. Rotating rod; 403. Rewinding groove; 404. Pull rope; 405. Connecting frame; 406. Support frame; 407. Vertical groove; 408. Flipping mechanism. 409. Groove; 410. Support plate; 411. First shaft; 412. Second shaft; 413. Groove; 414. First spring; 415. Auxiliary plate; 416. Telescopic groove; 417. Second spring; 418. Auxiliary push block; 419. Second torsion spring; 500. Door opening and fixing mechanism; 501. Fixing shell; 502. Limiting groove; 503. Tension spring; 504. Fixing plate; 505. Guide rod; 506. Guide inclined groove; 507. Mounting block; 508. Trigger rod; 509. Limiting block. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1:

[0031] Please see Figure 1-7 The present invention provides a technical solution: a distribution box for a ship fire extinguishing device, comprising a distribution box body 1, wherein a distribution box door 2 is provided on the front side of the distribution box body 1;

[0032] A door opening and expansion mechanism 3 is symmetrically provided on the front side of the distribution box 1 corresponding to the distribution box door 2, so that the distribution box door 2 can be rotated to the maximum opening distance when the distribution box is being maintained.

[0033] Furthermore, the door opening expansion mechanism 3 includes an extension housing 301. The same side wall of the two extension housings 301 is fixedly connected to the front corner of the distribution box 1. An expansion groove 302 is provided on the side wall of the two extension housings 301 that are close to each other. Connecting columns 303 are fixedly connected to the upper and lower outer walls of the distribution box door 2. The upper and lower outer walls of the distribution box door 2 slide against the side wall of the two extension housings 301 that are close to each other. The opposite end faces of the two connecting columns 303 slide against the inner wall of the expansion groove 302.

[0034] More specifically, in this embodiment, a set of components is first installed inside the distribution box 1 to connect and control several fire extinguishing, early warning and other devices. When it is necessary to maintain or repair the components inside the distribution box 1, the upper and lower outer walls of the distribution box door 2 are first slid against the side wall of the two extended outer shells 301 that are close to each other, and the opposite end faces of the two connecting columns 303 are slid against the inner wall of the expansion groove 302, thereby supporting the distribution box door 2.

[0035] When the distribution box door 2 is rotated open, a connecting gear 304 is fixedly connected to the outer wall of the connecting column 303, and a connecting rack 305 is fixedly connected to the inner wall of the expansion groove 302 corresponding to the connecting gear 304. One side of the connecting gear 304 meshes with the connecting rack 305, so that the connecting gear 304 is rotated synchronously during the rotation of the connecting column 303. The connecting rack 305 allows the distribution box door 2 to move forward a certain distance synchronously when it is rotated open, so that the distribution box door 2 can be separated from the adjacent distribution box as a whole, realizing the 180-degree rotation opening of the distribution box door 2, leaving a large maintenance space.

[0036] Then, during the opening process, a slider 306 is rotatably connected to the outer wall of the connecting column 303, and the outer wall of the slider 306 slides against the inner wall of the expansion groove 302, thereby ensuring the stability of the connecting gear 304 and the connecting rack 305 during meshing transmission.

[0037] Next, a circular groove 307 is provided on one side wall of the two sliders 306 that are close to each other, and a first torsion spring 308 is attached to the outer wall of the connecting post 303. One end of the first torsion spring 308 is attached to the outer wall of the connecting post 303, and the other end of the first torsion spring 308 is attached to the inner wall of the circular groove 307. Thus, when the dispensing box door 2 is closed later, the first torsion spring 308 can be used to drive the dispensing box door 2 to close automatically, which is convenient to use.

[0038] As described above, during the maintenance of the distribution box, the connecting gear 304 and the connecting rack 305 can be used to simultaneously move forward a certain distance when the distribution box door 2 is opened, allowing the distribution box door 2 to be separated from the adjacent distribution box and rotated 180 degrees to open. This provides a larger maintenance space, which is beneficial to improving the maintenance efficiency of maintenance personnel and facilitating the timely redistribution of the ship's fire extinguishing equipment using the distribution box.

[0039] Example 2:

[0040] Based on the above embodiments, a door opening and flipping mechanism 4 is provided on one side of the dispensing box door 2 facing the dispensing box body 1, so that maintenance personnel can easily take and search for tools when the dispensing box is being maintained.

[0041] Furthermore, the door opening and flipping mechanism 4 includes a support block 401, and one side wall of the support block 401 is fixedly connected to the side of the distribution box door 2 facing the distribution box 1. The support block 401 is rotatably connected to a rotating rod 402, and the outer wall of the rotating rod 402 is provided with a winding groove 403. A pull rope 404 is wound around the inner wall of the winding groove 403, and the other end of the pull rope 404 is fixedly connected to the inner wall of the distribution box 1. A connecting frame 405 is threadedly connected to the outer wall of the rotating rod 402, and one side wall of the connecting frame 405 slides against the side of the distribution box door 2 facing the distribution box 1.

[0042] More specifically, in this embodiment, during the opening of the dispensing box door 2, a rotating rod 402 is first rotatably connected to the inside of the support block 401, and a winding groove 403 is provided on the outer wall of the rotating rod 402. A pull rope 404 is wound around the inner wall of the winding groove 403, and the other end of the pull rope 404 is fixedly connected to the inner wall of the dispensing box 1. Thus, during the opening of the dispensing box door 2, the pull rope 404 can be unfolded by the rotating rod 402, causing the rotating rod 402 to rotate. Then, a connecting frame 405 is threadedly connected to the outer wall of the rotating rod 402, and one side wall of the connecting frame 405 slides against the side of the dispensing box door 2 facing the dispensing box 1. Thus, the rotating rod 402 can drive the connecting frame 405 to move downward.

[0043] Next, a first shaft 410 is fixedly connected to both sides of the support plate 409, and the outer wall of the first shaft 410 slides against the inner wall of the vertical groove 407. A second shaft 411 is fixedly connected to both sides of the support plate 409, and the outer wall of the second shaft 411 slides against the inner wall of the tilting groove 408. The inner walls of both sides of the connecting frame 405 are rotatably connected to the ends of the two first shafts 410 that are far apart. Thus, when the dispensing box door 2 is not open, supported by the connecting frame 405, the second shaft 411 is located in the upper inner wall of the vertical groove 407. As the connecting frame 405 moves downward, it synchronously drives the support plate 409 downward. When the dispensing box door 2 is fully open, the first shaft 410 is located in the lower inner wall of the vertical groove 407, and the second shaft 411 is located in the vertical groove 407 and the tilting groove 408. At the junction of slots 408, the pallet 409 is no longer restricted. At this time, a telescopic slot 415 is opened on one side of the distribution box 1 through the distribution box door 2. A second spring 416 is fixedly connected to the inner wall of the telescopic slot 415, and an auxiliary push block 417 is fixedly connected to the other end of the second spring 416. Thus, the second spring 416 can drive the auxiliary push block 417 to push the pallet 409. Then, under the action of gravity, the pallet 409 drives the second shaft 411 to slide into the flipping slot 408, and the pallet 409 flips and lies flat. This allows maintenance personnel to place the toolbox on the surface of the pallet 409, making it easy to pick up and search for tools during maintenance without having to bend over or squat down to pick them up, thus reducing the labor intensity of maintenance personnel.

[0044] Next, a groove 412 is provided on one side of the pallet 409 facing the distribution box door 2, and a first spring 413 is fixedly connected to the inner wall of the groove 412. An auxiliary plate 414 is fixedly connected to the other end of the first spring 413. At the same time, the outer wall of the auxiliary plate 414 slides against the inner wall of the groove 412. The auxiliary plate 414 forms a telescopic structure with the groove 412 through the first spring 413. So when the pallet 409 is flipped flat, the auxiliary plate 414 is lifted by the elastic force of the first spring 413. This can work with the two support frames 406 and the distribution box door 2 to restrict the toolbox around its perimeter and prevent the toolbox from slipping off the pallet 409 when the ship shakes.

[0045] Next, a second torsion spring 418 is attached to the outer wall of the rotating rod 402, with one end of the second torsion spring 418 overlapping the outer wall of the rotating rod 402 and the other end overlapping the bottom of the support block 401. Thus, when the maintenance is completed, the toolbox is first removed, and then the pallet 409 is manually flipped back to the vertical position and the auxiliary push block 417 is pressed back into the telescopic groove 415. That is, the first shaft 410 and the second shaft 411 are both located in the vertical groove 407. Then, the first torsion spring 308 drives the distribution box door 2 to close automatically, and then the second torsion spring 418 drives the connecting frame 405 to move upward, thereby synchronously driving the pallet 409 back to its original position to quickly restore it to the initial position, so as to improve maintenance efficiency when maintaining multiple distribution boxes.

[0046] As described above, when repairing the distribution box, the pull rope 404 can be used to lower the tray 409 during the opening of the distribution box door 2. When the distribution box door 2 is fully opened, the flip groove 408 can be used to automatically flip the tray 409 flat, allowing maintenance personnel to place the toolbox on the surface of the tray 409. This makes it easier to retrieve and search for tools during maintenance, thus improving the maintenance efficiency of maintenance personnel.

[0047] Example 3:

[0048] Based on the above embodiments, an opening and fixing mechanism 5 is provided on the side of the distribution box door 2 away from the distribution box body 1 so that the distribution box door 2 can be quickly fixed when the distribution box is being repaired.

[0049] Furthermore, the door opening and fixing mechanism 5 includes a fixing shell 501, and one side wall of the fixing shell 501 is fixedly connected to the side of the distribution box door 2 away from the distribution box body 1. A limiting groove 502 is opened on one side wall of the fixing shell 501, and a tension spring 503 is fixedly connected to the inner wall of the limiting groove 502. A fixing plate 504 is fixedly connected to the other end of the tension spring 503, and the outer wall of the fixing plate 504 slides against the inner wall of the limiting groove 502. A guide rod 505 is provided inside the fixing plate 504. A switching slide groove 6 is opened through one side of the distribution box door 2 corresponding to the guide rod 505, and the outer wall of the guide rod 505 slides against the inner wall of the switching slide groove 6.

[0050] More specifically, in this embodiment, during the flipping and flattening of the pallet 409, when the auxiliary push block 417 first applies a push to the pallet 409, it simultaneously pushes the trigger rod 508. The trigger rod 508 has an inclined surface at one end towards the auxiliary push block 417, thus pushing the guide rod 505. Then, the guide rod 505 has an inclined surface at one side wall towards the trigger rod 508, and its outer wall slides in contact with the inner wall of the switching groove 6. This allows the guide rod 505 to be used to move the fixed plate 504. The guide plate 504 is pushed forward, and then a guide groove 506 is opened on one side wall of the distribution box door 2 corresponding to the guide rod 505. The outer wall of the guide plate 504 slides against the inner wall of the limiting groove 502. A tension spring 503 is fixedly connected to the inner wall of the limiting groove 502, and the other end of the tension spring 503 is fixedly connected to the guide plate 504. Thus, the guide groove 506 can be used to make the guide plate 504 extend out of the limiting groove 502 and fit into the gap between the distribution box body 1 and the distribution box door 2, so as to quickly fix the distribution box door 2.

[0051] When the tray 409 is manually flipped back to the vertical position and the auxiliary push block 417 is pressed back into the telescopic groove 415, the trigger rod 508 is no longer pushed by the auxiliary push block 417, so that the fixing plate 504 can be pulled out from the gap between the distribution box 1 and the distribution box door 2 by the tension spring 503, thereby releasing the fixation.

[0052] Next, an installation block 507 is fixedly connected to one side of the distribution box door 2 facing the distribution box body 1, and a trigger rod 508 is slidably connected inside the installation block 507 to the guide rod 505, so that the trigger rod 508 can be supported by the installation block 507. Then, a limit block 509 is fixedly connected to the side of the trigger rod 508 near the top of the guide rod 505, so that when the trigger rod 508 returns to its original position, the limit block 509 and the installation block 507 can be used to limit the return position of the trigger rod 508.

[0053] As described above, during maintenance of the distribution box, the auxiliary push block 417 and the guide rod 505 can be used to push the fixing plate 504 into the gap between the distribution box body 1 and the distribution box door 2 during the flipping and flattening of the pallet 409. This allows for quick fixation of the distribution box door 2, ensuring its stability during sea voyages and thus guaranteeing the safety of maintenance personnel during maintenance.

[0054] Working principle: During maintenance, the distribution box door 2 is first rotated to open, which drives the connecting column 303 to rotate. During the rotation of the connecting column 303, the connecting gear 304 is rotated synchronously. The connecting rack 305 is used to make the distribution box door 2 move forward a certain distance when it is rotated open, so that the distribution box door 2 can be separated from the adjacent distribution box as a whole, realizing the 180-degree rotation opening of the distribution box door 2.

[0055] Next, during the process of opening the distribution box door 2, the pull rope 404 can be unfolded by the rotating rod 402, causing the rotating rod 402 to rotate. This allows the connecting frame 405 to move downwards. As the connecting frame 405 moves downwards, the tray 409 will move downwards in sync. When the distribution box door 2 is fully open, the tray 409 is no longer restricted. The second spring 416 drives the auxiliary push block 417 to push the tray 409. Then, under the action of gravity, the tray 409 drives the second shaft 411 to slide into the flipping groove 408, and the tray 409 flips and lies flat, allowing maintenance personnel to place the toolbox on the surface of the tray 409.

[0056] Next, after the pallet 409 is flipped flat, the auxiliary plate 414 is lifted by the elastic force of the first spring 413, so as to cooperate with the two support frames 406 and the distribution box door 2 to restrict the toolbox around its sides and prevent the toolbox from slipping off the pallet 409 when the ship shakes.

[0057] Next, during the process of flipping and flattening the pallet 409, the auxiliary push block 417 first applies a push to the pallet 409, which in turn pushes the trigger rod 508. This causes the trigger rod 508 to push the guide rod 505, which in turn pushes the fixing plate 504. Consequently, the fixing plate 504 extends out of the limiting groove 502 using the guide groove 506, and then gets into the gap between the dispensing box 1 and the dispensing box door 2, thereby quickly fixing the dispensing box door 2.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A distribution box for a ship fire extinguishing system, comprising a distribution box body (1), characterized in that: The front side of the distribution box (1) is provided with a distribution box door (2); The front side of the distribution box (1) is symmetrically provided with an opening expansion mechanism (3) corresponding to the distribution box door (2) so that when the distribution box is being maintained, the distribution box door (2) can be rotated to the maximum opening distance. The distribution box door (2) is provided with a door opening and flipping mechanism (4) on the side facing the distribution box body (1) so that maintenance personnel can easily take and search for tools when the distribution box is being maintained. The door opening and flipping mechanism (4) includes a tray (409). The tray (409) has a groove (412) on one side facing the distribution box door (2). A first spring (413) is fixedly connected to the inner wall of the groove (412). An auxiliary plate (414) is fixedly connected to the other end of the first spring (413). The outer wall of the auxiliary plate (414) slides against the inner wall of the groove (412). The auxiliary plate (414) forms a telescopic structure with the groove (412) through the first spring (413). A telescopic groove (415) is opened on one side facing the distribution box body (1). A second spring (416) is fixedly connected to the inner wall of the telescopic groove (415). An auxiliary push block (417) is fixedly connected to the other end of the second spring (416). The outer wall of the auxiliary push block (417) slides against the inner wall of the telescopic groove (415). The side of the distribution box door (2) away from the distribution box body (1) is provided with a door opening and fixing mechanism (5) so as to quickly fix the distribution box door (2) when the distribution box is being repaired; The door opening and fixing mechanism includes a fixing plate (504). The fixing plate (504) has a guide groove (506) on one side wall facing the distribution box door (2) corresponding to the guide rod (505). The distribution box door (2) is fixedly connected to one side facing the distribution box body (1) with an installation block (507). The installation block (507) is slidably connected to the guide rod (505) inside. The guide rod (505) has an inclined side wall facing the trigger rod (508). The trigger rod (508) has a limit block (509) fixedly connected to the side of the trigger rod (508) near the top of the guide rod (505). The trigger rod (508) has an inclined end facing the auxiliary push block (417).

2. A distribution box for a ship fire extinguishing system according to claim 1, characterized in that, The door opening expansion mechanism (3) includes an extension shell (301). The same side wall of the two extension shells (301) is fixedly connected to the front corner of the distribution box (1). An expansion groove (302) is opened on the side wall of the two extension shells (301) that are close to each other. The upper and lower outer walls of the distribution box door (2) are fixedly connected to connecting columns (303). The upper and lower outer walls of the distribution box door (2) slide against the side wall of the two extension shells (301) that are close to each other. The opposite end faces of the two connecting columns (303) slide against the inner wall of the expansion groove (302).

3. A distribution box for a ship fire extinguishing system according to claim 2, characterized in that, A connecting gear (304) is fixedly connected to the outer wall of the connecting column (303). A connecting rack (305) is fixedly connected to the inner wall of the expansion groove (302) corresponding to the connecting gear (304). One side of the connecting gear (304) meshes with the connecting rack (305). A slider (306) is rotatably connected to the outer wall of the connecting column (303). The outer wall of the slider (306) slides against the inner wall of the expansion groove (302). A circular groove (307) is opened on the side wall of the two sliders (306) that are close to each other. A first torsion spring (308) is attached to the outer wall of the connecting column (303). One end of the first torsion spring (308) overlaps the outer wall of the connecting column (303), and the other end of the first torsion spring (308) overlaps the inner wall of the circular groove (307).

4. A distribution box for a ship fire extinguishing system according to claim 1, characterized in that, The door opening and flipping mechanism (4) includes a support block (401), and one side wall of the support block (401) is fixedly connected to the side of the distribution box door (2) facing the distribution box body (1). The support block (401) is rotatably connected to a rotating rod (402), and the outer wall of the rotating rod (402) is provided with a winding groove (403). The inner wall of the winding groove (403) is wound with a pull rope (404), and the other end of the pull rope (404) is fixedly connected to the inner wall of the distribution box body (1). The outer wall of the rotating rod (402) is threadedly connected to a connecting frame (405), and one side wall of the connecting frame (405) slides against the side of the distribution box door (2) facing the distribution box body (1).

5. A distribution box for a ship fire extinguishing system according to claim 4, characterized in that, The distribution box door (2) is symmetrically fixedly connected to a support frame (406) on one side facing the distribution box body (1), and a vertical groove (407) is provided through one side wall of the support frame (406), and a flip groove (408) is provided through one side wall of the support frame (406), and the inner wall of the flip groove (408) is connected and matched with the inner wall of the vertical groove (407). A tray (409) is provided on the side wall of the two support frames (406) that are close to each other, and the tray (409) is provided with a support plate (409). The two sides of the support plate (409) are fixedly connected to the first shaft (410), the outer wall of the first shaft (410) slides against the inner wall of the vertical groove (407), the two sides of the support plate (409) are fixedly connected to the second shaft (411), and the outer wall of the second shaft (411) slides against the inner wall of the flip groove (408), and the two sides of the inner wall of the connecting frame (405) are rotatably connected to the two ends of the first shaft (410) that are far apart.

6. A distribution box for a ship fire extinguishing system according to claim 5, characterized in that, The outer wall of the rotating rod (402) is fitted with a second torsion spring (418), and one end of the second torsion spring (418) is attached to the outer wall of the rotating rod (402), while the other end of the second torsion spring (418) is attached to the bottom of the support block (401).

7. A distribution box for a ship fire extinguishing system according to claim 6, characterized in that, The door opening and fixing mechanism (5) includes a fixing shell (501), and one side wall of the fixing shell (501) is fixedly connected to the side of the distribution box door (2) away from the distribution box body (1). A limiting groove (502) is opened on one side wall of the fixing shell (501), and a tension spring (503) is fixedly connected to the inner wall of the limiting groove (502). A fixing plate (504) is fixedly connected to the other end of the tension spring (503), and the outer wall of the fixing plate (504) slides against the inner wall of the limiting groove (502). A guide rod (505) is provided inside the fixing plate (504). A switching groove (6) is opened through one side of the distribution box door (2) corresponding to the guide rod (505), and the outer wall of the guide rod (505) slides against the inner wall of the switching groove (6).

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