Flame-retardant structure of distribution box

Abstract

The utility model relates to the technical field of distribution box protection, in particular to a distribution box flame-retardant structure which comprises a box body, a plurality of heat dissipation grooves are formed in the two side walls of the box body, and sealing plates are installed on the inner walls of the heat dissipation grooves in a sliding mode. A fire extinguishing system; the air injection assembly comprises an air injection seat fixed to the inner top wall of the box body, a communicating groove formed in the inner wall of the air injection seat, an annular push seat sliding in the communicating groove, and a reset spring connected to the annular push seat and installed between the annular push seat and the communicating groove; a traction assembly; by arranging the air injection assembly, the traction assembly and the sliding assembly, when a fire occurs in the box, rapid detection is conducted for fire extinguishing, the fire extinguishing system releases a fire extinguishing agent, meanwhile, a sealing plate is pulled to move, the sealing plate rapidly blocks a heat dissipation groove, the box body is in a sealed state at the moment, external oxygen is isolated from entering, the flame retardant effect is improved, and the fire behavior is rapidly extinguished.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution box protection, in particular to a flame-retardant structure of a distribution box. Background Technique

[0002] Distribution boxes are usually located in public areas of buildings or near important facilities. Once a fire breaks out, it will not only threaten the safety of personnel, but also quickly spread to other areas, resulting in property losses and casualties. Electrical fires are one of the common causes of fires globally, especially in residential, commercial buildings, and industrial sites. As the core equipment for power distribution and control, distribution boxes concentrate various electrical components such as circuit breakers, relays, and terminal blocks. These parts may generate high temperatures or electric arcs during current overload, short circuit, or equipment failure, thus triggering a fire. The flame-retardant structure can effectively slow down the development of the fire and buy precious time for personnel evacuation and fire fighting and rescue.

[0003] The existing flame-retardant structures of distribution boxes usually adopt a perfluoropentanone fire extinguishing system to monitor the inside of the distribution box. When a fire is detected, perfluoropentanone is sprayed inside the box body. After the perfluoropentanone is released, it quickly vaporizes, absorbs a large amount of heat, reduces the temperature of the fire scene, and at the same time dilutes the oxygen concentration to interrupt the combustion chain reaction. However, in order to ensure the heat dissipation performance, a distribution box needs to be provided with many heat dissipation slots. However, the setting of the heat dissipation slots will cause the vaporized perfluoropentanone to be released from the heat dissipation slots, and it is difficult to ensure the sealing of the box body during flame retardancy. Therefore, a flame-retardant structure of a distribution box is proposed. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and the title of the application of this application, to avoid obscuring the purpose of this part, the abstract, and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the above problem that in order to ensure the heat dissipation performance, a distribution box needs to be provided with many heat dissipation slots, but the setting of the heat dissipation slots will cause the vaporized perfluoropentanone to be released from the heat dissipation slots, and it is difficult to ensure the sealing of the box body during flame retardancy, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a flame-retardant structure of a distribution box.

[0007] To solve the above technical problems, the present utility model provides the following technical solution: A flame-retardant structure of a distribution box includes a box body, and a plurality of heat dissipation slots are opened on both side walls of the box body, and a sealing plate is slidably installed at the inner wall of the heat dissipation slot;

[0008] A fire extinguishing system, which includes a storage tank installed on the outer wall of the box, a conduit connected to the gas outlet end of the storage tank, a solenoid valve installed on the periphery of the conduit, and a temperature monitor installed on the inner wall of the box;

[0009] A jet component, which includes a jet seat fixed to the inner top wall of the box, a communication groove opened on the inner wall of the jet seat, an annular push seat sliding in the communication groove, a connection to the annular push seat, and a return spring installed between the annular push seat and the communication groove;

[0010] A traction component, which includes a sliding component installed at the annular push seat and a traction rope connected between the sealing plate and the sliding component.

[0011] As a preferred solution of a flame-retardant structure of a distribution box according to the present invention, wherein: a plurality of through grooves are opened on the inner wall of the sealing plate, and the positions of the through grooves correspond to the heat dissipation grooves.

[0012] As a preferred solution of a flame-retardant structure of a distribution box according to the present invention, wherein: a spray pipe is connected to the bottom surface of the jet seat, a connecting pipe is connected to the bottom surface of the annular push seat, and the connecting pipe slides in the spray pipe.

[0013] As a preferred solution of a flame-retardant structure of a distribution box according to the present invention, wherein: the sliding component includes a plurality of connecting grooves opened on the bottom wall of the jet seat, sliding rods sliding in the connecting grooves, connecting blocks connected between the sliding rods and the annular push seat, and connecting plates fixed to the bottom surfaces of the sliding rods. A connecting ring is fixedly connected to the side wall of the sealing plate, and a traction rope is connected between the connecting plate and the connecting ring.

[0014] As a preferred solution of a flame-retardant structure of a distribution box according to the present invention, wherein: a plurality of suspension rods are fixedly connected to the inner top wall of the box, and the traction rope is connected to the connecting plate through the suspension rods.

[0015] As a preferred solution of a flame-retardant structure of a distribution box according to the present invention, wherein: a positioning frame is fixedly connected to the inner wall of the box, a sliding groove is opened on the inner wall of the positioning frame, and the sealing plate slides in the sliding groove.

[0016] As a preferred solution of a flame-retardant structure of a distribution box according to the present invention, wherein: a positioning component is arranged between the sliding rod and the annular push seat.

[0017] As a preferred solution of a flame-retardant structure of a distribution box according to the present invention, wherein: the positioning component includes a spring groove opened on the side wall of the sliding rod, a rotating plate rotatably connected to the inner wall of the spring groove, a memory spring connected between the rotating plate and the spring groove, and a clamping groove opened on the side wall of the communication groove; the rotating plate is clamped with the clamping groove.

[0018] As a preferred embodiment of the flame-retardant structure of the distribution box of the present utility model, wherein: the inner diameter of the annular push seat is greater than that of the connecting pipe.

[0019] As a preferred embodiment of the flame-retardant structure of the distribution box of the present utility model, wherein: a diversion seat is fixedly connected to the inner wall of the communication groove.

[0020] The beneficial effects of the flame-retardant structure of the distribution box of the present utility model: By setting the jet component, the traction component and the sliding component, when a fire breaks out inside the box, it is quickly detected and extinguished. While the fire extinguishing system releases the fire extinguishing agent, the traction seal plate moves, and the seal plate quickly blocks the heat dissipation grooves, making the box in a sealed state at this time, isolating the entry of external oxygen, improving the flame-retardant effect, and quickly extinguishing the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0022] Figure 1 It is an overall schematic diagram of a flame-retardant structure of a distribution box.

[0023] Figure 2 It is a first sectional structure schematic diagram of a flame-retardant structure of a distribution box.

[0024] Figure 3 It is a second sectional structure schematic diagram of a flame-retardant structure of a distribution box.

[0025] Figure 4 For Figure 2 The sectional structure schematic diagram of B-B in

[0026] Figure 5 It is a left-side three-dimensional structure schematic diagram of a flame-retardant structure of a distribution box;

[0027] Figure 6 It is a structure schematic diagram after the seal plate is lifted. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific embodiments of the present utility model in conjunction with the drawings of the specification.

[0029] In the following description, numerous specific details are set forth to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other manners different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0030] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present utility model. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that are mutually exclusive of other embodiments.

[0031] Embodiment 1

[0032] Referring to Figure 1 - Figure 6 , which is the first embodiment of the present utility model. This embodiment provides a flame-retardant structure for a distribution box, including a box body 1. A plurality of heat dissipation slots 101 are opened on both side walls of the box body 1. A sealing plate 402 is slidably installed on the inner wall of the heat dissipation slot 101. A positioning frame 401 is fixedly connected to the inner wall of the box body 1. A sliding slot 401a is opened on the inner wall of the positioning frame 401. The sealing plate 402 slides within the sliding slot 401a;

[0033] A fire extinguishing system 2, which includes a storage tank 201 installed on the outer wall of the box body 1, a conduit 202 connected to the gas outlet end of the storage tank 201, an electromagnetic valve 203 installed on the periphery of the conduit 202, and a temperature monitor 7 installed on the inner wall of the box body 1. The temperature monitor 7 is a linear heat detector, and a smoke detector and a flame detector can also be used;

[0034] An air jet assembly 3, which includes an air jet seat 301 fixed to the inner top wall of the box body 1, a communication slot 302 opened on the inner wall of the air jet seat 301, an annular push seat 303 slidably disposed within the communication slot 302, a connection to the annular push seat 303, and a return spring 304 installed between the annular push seat 303 and the communication slot 302. When the temperature monitor 7 detects the high temperature generated by an open fire, it will immediately activate the release of the perfluoroketone fire extinguishing system 2. The electromagnetic valve 203 is opened, enabling the fire extinguishing agent to be quickly released into the distribution cabinet through the air jet assembly 3 to quickly extinguish the fire;

[0035] The traction assembly includes a sliding assembly 5 installed at the annular push seat 303 and a traction rope 602 connected between the sealing plate 402 and the sliding assembly 5. When the fire extinguishing agent is quickly released through the nozzle 301, since it first passes through the annular push seat 303 and the aperture of the nozzle 301 is small, the annular push seat 303 moves downward under pressure, thereby driving the displacement of the traction rope 602. The displacement of the traction rope 602 drives the movement of the sealing plate 402, and the sealing plate 402 quickly blocks the heat dissipation slots 101, so that the box body 1 is in a sealed state at this time, isolating the entry of external oxygen, thereby enhancing the flame retardant effect and quickly extinguishing the fire.

[0036] Specifically, a plurality of through slots 402a are formed in the inner wall of the sealing plate 402, and the positions of the through slots 402a correspond to the heat dissipation slots 101. The sealing plate 402 is attached to the heat dissipation slots 101 for installation. When the sealing plate 402 is displaced, the through slots 402a are staggered from the heat dissipation slots 101, so that the heat dissipation slots 101 are in a sealed state.

[0037] Furthermore, a nozzle 301a is connected to the bottom surface of the jet seat 301, a connecting pipe 303a is connected to the bottom surface of the annular push seat 303, the connecting pipe 303a slides in the nozzle 301a, and the inner diameter of the annular push seat 303 is larger than that of the connecting pipe 303a.

[0038] Furthermore, the sliding assembly 5 includes a plurality of connecting slots 501 formed in the bottom wall of the jet seat 301, sliding rods 502 sliding in the connecting slots 501, a connecting block 503 connected between the sliding rods 502 and the annular push seat 303, and a connecting plate 504 fixed to the bottom surface of the sliding rods 502. A connecting ring 402b is fixedly connected to the side wall of the sealing plate 402, and a traction rope 602 is connected between the connecting plate 504 and the connecting ring 402b.

[0039] Furthermore, a plurality of suspension rods 601 are fixedly connected to the inner top wall of the box body 1. The traction rope 602 is connected to the connecting plate 504 through the suspension rods 601. By providing the suspension rods 601, the traction rope 602 can be attached to the inner wall of the box body 1 to prevent the traction rope 602 from blocking the components inside the box body 1.

[0040] Operation process: When the temperature monitor 7 detects the high temperature generated by an open fire, it will immediately activate the release of the perfluoromethylcyclohexanone fire extinguishing system 2. The solenoid valve 203 opens, allowing the fire extinguishing agent to be quickly released into the power distribution cabinet through the jet component 3. Since the inner diameter of the annular push seat 303 is larger than that of the connecting pipe 303a, the fire extinguishing agent in a high-pressure state inside the jet seat 301 is released through the connecting pipe 303a. The fire extinguishing agent in a high-pressure state pushes the annular push seat 303 to displace. The annular push seat 303 drives the slide bar 502 and the connecting plate 504 to move downward through the connecting block 503, thereby driving the traction rope 602 to move. The displacement of the traction rope 602 drives the sealing plate 402 to move. The sealing plate 402 quickly blocks the heat dissipation slots 101, so that the box body 1 is in a sealed state at this time, isolating the entry of external oxygen, thereby improving the flame retardant effect and quickly extinguishing the fire.

[0041] Appendix Figure 3 In the figure, the annular push seat 303 and the slide bar 502 are in a downward movement state. At this time, the sealing plate 402 moves upward to seal the heat dissipation slots 101.

[0042] Embodiment 2

[0043] Refer to Figure 1 - Figure 6 This is the second embodiment of the present invention. Different from the previous embodiment: A positioning component is provided between the slide bar 502 and the annular push seat 303. The positioning component includes a spring groove 502a opened on the side wall of the slide bar 502, a rotating plate 502b rotatably connected to the inner wall of the spring groove 502a, a memory spring 502c connected between the rotating plate 502b and the spring groove 502a, and a card slot 502d opened on the side wall of the communication groove 302; The rotating plate 502b is engaged with the card slot 502d. When the slide bar 502 follows the annular push seat 303 to move downward, the rotating plate 502b reaches the card slot 502d. At this time, the memory spring 502c resets and pops out the rotating plate 502b. After the rotating plate 502b pops out, it is located at the card slot 502d. When the slide bar 502 moves upward as the fire extinguishing agent release amount decreases, the rotating plate 502b abuts against the card slot 502d, so that the slide bar 502 is in a locked state after the fire extinguishing agent is released and moves downward, avoiding the situation that the annular push seat 303 rebounds due to the reset of the return spring 304, resulting in the reset of the sealing plate 402, so that the overall box body 1 remains in a closed state.

[0044] Specifically, a diversion seat 301b is fixedly connected to the inner wall of the communication groove 302. The diversion seat 301b diverts the fire extinguishing agent released into the communication groove 302, allowing the fire extinguishing agent to be sprayed at the annular push seat 303, so as to better displace the annular push seat 303 and improve the overall stability of the device structure.

[0045] All other structures are the same as those in Embodiment 1.

[0046] Operation process: When it is necessary to release the limit of the rotating plate 502b, open the box body 1 to repair the fire components inside the box body 1. After the repair is completed, the normal state is restored inside the box body 1. At this time, press the rotating plate 502b on both sides of the air jet seat 301 to press the rotating plate 502b into the spring groove 502a, and the rotating plate 502b disengages from the card slot 502d. At this time, the return spring 304 loses resistance and thus quickly resets, raising the position of the annular push seat 303. At this time, the sealing plate 402 moves downward to open the heat dissipation groove 101, keeping the box body 1 in a heat dissipation state; by setting the positioning component, after a fire occurs inside the box body 1, the sealing plate 402 can be quickly adjusted to the positioning state to prevent the sealing plate 402 from opening during the fire extinguishing process and affecting the fire extinguishing effect. And after the subsequent repair is completed, the positioning can be released to restore the sealing plate 402 to its original position and open the heat dissipation groove 101.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A flame-retardant structure for a distribution box, characterized in that: It includes a box body (1). A number of heat dissipation grooves (101) are provided on both side walls of the box body (1), and a sealing plate (402) is slidably installed on the inner wall of the heat dissipation groove (101); A fire extinguishing system (2), which includes a storage tank (201) installed on the outer wall of the box body (1), a conduit (202) connected to the gas outlet end of the storage tank (201), a solenoid valve (203) installed on the periphery of the conduit (202), and a temperature monitor (7) installed on the inner wall of the box body (1); A jet component (3), which includes a jet seat (301) fixed to the inner top wall of the box body (1), a communication groove (302) opened on the inner wall of the jet seat (301), an annular push seat (303) slid in the communication groove (302), a reset spring (304) connected to the annular push seat (303) and installed between the annular push seat (303) and the communication groove (302); A traction component, which includes a sliding component (5) installed at the annular push seat (303) and a traction rope (602) connected between the sealing plate (402) and the sliding component (5).

2. The flame-retardant structure of a distribution box according to claim 1, wherein: A number of through grooves (402a) are opened on the inner wall of the sealing plate (402), and the positions of the through grooves (402a) correspond to the heat dissipation grooves (101).

3. A flame-retardant structure of a distribution box according to claim 2, characterized in that: A nozzle (301a) is connected to the bottom surface of the jet seat (301), a connecting pipe (303a) is connected to the bottom surface of the annular push seat (303), and the connecting pipe (303a) slides in the nozzle (301a).

4. The flame-retardant structure of a distribution box according to claim 3, characterized in that: The sliding component (5) includes a number of connecting grooves (501) opened on the bottom wall of the jet seat (301), a sliding rod (502) slid in the connecting groove (501), a connecting block (503) connected between the sliding rod (502) and the annular push seat (303), and a connecting plate (504) fixed to the bottom surface of the sliding rod (502). A connecting ring (402b) is fixedly connected to the side wall of the sealing plate (402), and the traction rope (602) is connected between the connecting plate (504) and the connecting ring (402b).

5. The flame-retardant structure of a distribution box according to claim 4, characterized in that: A number of suspension rods (601) are fixedly connected to the inner top wall of the box body (1), and the traction rope (602) is connected to the connecting plate (504) through the suspension rods (601).

6. The flame-retardant structure of a distribution box according to claim 5, characterized in that: A positioning frame (401) is fixedly connected to the inner wall of the box body (1), a sliding groove (401a) is opened on the inner wall of the positioning frame (401), and the sealing plate (402) slides in the sliding groove (401a).

7. A flame-retardant structure of a distribution box according to claim 4 or 6, characterized in that: A positioning component is arranged between the sliding rod (502) and the annular push seat (303).

8. A flame-retardant structure of a distribution box according to claim 7, characterized in that: The positioning component includes a spring groove (502a) opened on the side wall of the sliding rod (502), a rotating plate (502b) rotatably connected to the inner wall of the spring groove (502a), a memory spring (502c) connected between the rotating plate (502b) and the spring groove (502a), and a card slot (502d) opened on the side wall of the communication groove (302); the rotating plate (502b) is engaged with the card slot (502d).

9. A flame-retardant structure of a distribution box according to claim 8, characterized in that: The inner diameter of the annular push seat (303) is larger than that of the connecting pipe (303a).

10. A flame-retardant structure of a distribution box according to claim 9, characterized in that: A diversion seat (301b) is fixedly connected to the inner wall of the communication groove (302).

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