Power distribution cabinet with fire extinguishing structure

Abstract

The utility model relates to the technical field of power distribution cabinets, and discloses a power distribution cabinet with a fire extinguishing structure, which comprises a cabinet body, the cabinet body is hinged with a cabinet door, the inner wall of the cabinet body is fixedly connected with a mounting rack, the side wall of the cabinet body is provided with a ventilation opening, and the inner wall of the cabinet body is provided with a fire extinguishing assembly. According to the power distribution cabinet with the fire extinguishing structure, the shielding plate shields the ventilation opening, the interior and the exterior of the cabinet body are isolated, oxygen is prevented from entering through the ventilation opening, a combustion-supporting substance is provided for flame combustion, the fire extinguisher is pressed down, carbon dioxide is sprayed into the cabinet body through the nozzle, the content of carbon dioxide in the cabinet body is increased, oxygen supply in the combustion process is restrained, and the combustion efficiency is improved. And by cutting off air exchange, increasing the content of carbon dioxide and reducing comburent required by combustion, fire extinguishment in the power distribution cabinet is realized, electric shock accidents are prevented, and meanwhile, the problems of short circuit or insulation damage caused by water and the like are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with a fire extinguishing structure. Background Art

[0002] The distribution cabinets are divided into power distribution cabinets, lighting distribution cabinets and metering cabinets. They are the final equipment of the distribution system and are used to distribute electric energy to the nearest load. The main functions of the distribution cabinets and motor control centers are to protect, monitor and control loads. They receive the electric energy of a circuit of the upper-level distribution equipment and distribute it to the nearest load.

[0003] According to a disclosed power distribution cabinet with an internal fire extinguishing structure (publication number: CN216773862U), the above application includes a power distribution cabinet body, a liquid storage tank and a filter chamber. The liquid storage tank is located at the bottom of the back of the power distribution cabinet body, and the filter chamber is located at the top of the back of the power distribution cabinet body. An exhaust fan a is installed on the top of the filter chamber, and is connected to the input end of the exhaust fan through an air supply pipe a. A dust hood a is provided at the bottom of the air supply pipe a, and is connected to the output end of the exhaust fan a through an exhaust pipe a. A filter screen and an activated carbon filter screen are provided on the inner wall of the filter chamber.

[0004] However, the above-mentioned distribution cabinet uses water to extinguish electrical fires. Water is a good conductive medium. When water comes into contact with energized electrical appliances or circuits, it may cause electric shock accidents. At the same time, water may cause circuit short circuits and insulation damage, thereby making electrical equipment that was not on fire unable to work normally or even completely damaged. In view of this, we propose a distribution cabinet with a fire extinguishing structure. Utility Model Content

[0005] The purpose of the utility model is to provide a power distribution cabinet with a fire extinguishing structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a power distribution cabinet with a fire extinguishing structure, comprising a cabinet body, the cabinet body is hinged with a cabinet door, a mounting frame is fixedly connected to the inner wall of the cabinet body, a vent is opened on the side wall of the cabinet body, a fire extinguishing assembly is arranged on the inner wall of the cabinet body, and the fire extinguishing assembly comprises:

[0007] A shielding plate, the inner wall of the cabinet is fixedly connected to a guide rail, the inner wall of the cabinet is fixedly connected to a block, the guide rail is slidably connected to the shielding plate, the top end surface of the shielding plate is fixedly connected to a connecting wire, and one end of the connecting wire away from the shielding plate is fixedly connected to the inner top end surface of the cabinet;

[0008] A fire extinguisher, the outer wall of the cabinet is fixedly connected to a mounting box, the inner bottom of the mounting box is provided with a fire extinguisher, the side wall of the fire extinguisher is fixedly connected to a nozzle, the inner wall of the mounting box is movably connected to a pressing block, the bottom end surface of the pressing block abuts against a push rod, one end of the push rod away from the pressing block abuts against the inner bottom of the mounting box, the side wall of the push rod is fixedly connected to a connecting rope, and one end of the connecting rope away from the push rod is fixedly connected to the side wall of the baffle.

[0009] Preferably, a sealing ring 1 is fixedly connected to one end of the cabinet door close to the cabinet body, and a sealing ring 2 is fixedly connected to the inner wall of the vent.

[0010] Preferably, the side wall of the shielding plate abuts against the inner wall of the cabinet, the length of the shielding plate is greater than the width of the vent, and the width of the shielding plate is greater than the width of the vent.

[0011] Preferably, a pulley is provided on the inner top of the cabinet, and the pulleys are arranged in several groups, and the pulleys in several groups are respectively arranged on the inner top and inner bottom of the cabinet, and the pulleys are movably connected to the connecting line.

[0012] Preferably, a maintenance baffle is provided on a side of the installation box away from the cabinet, through which the fire extinguisher can be maintained and replaced.

[0013] Preferably, the nozzle is sleeved with the side wall of the mounting frame, and the carbon dioxide sprayed from the nozzle increases the carbon dioxide content in the cabinet, thereby extinguishing the flame.

[0014] Compared with the prior art, the utility model provides a power distribution cabinet with a fire extinguishing structure, which has the following beneficial effects:

[0015] 1. The power distribution cabinet with a fire extinguishing structure is provided with a baffle and a fire extinguisher. The baffle blocks the vents to isolate the inside of the cabinet from the outside, preventing oxygen from entering through the vents to provide combustion aids for flame combustion. The fire extinguisher is pressed down, and carbon dioxide is sprayed into the cabinet through a nozzle to increase the carbon dioxide content in the cabinet, thereby inhibiting the oxygen supply during the combustion process and achieving the effect of extinguishing the fire. By cutting off the air exchange and increasing the carbon dioxide content, the combustion aids required for combustion are reduced, and the fire in the distribution cabinet is extinguished to prevent electric shock accidents. At the same time, problems such as circuit short circuit or insulation damage caused by water are avoided.

[0016] 2. The distribution cabinet with a fire extinguishing structure improves the sealing between the cabinet body and the cabinet door, and between the baffle plate and the cabinet body by setting the sealing ring 1 and the sealing ring 2, prevents oxygen from entering the cabinet body through the vents and the gap between the cabinet door and the cabinet body, improves the fire extinguishing effect of the carbon dioxide fire extinguisher, and reduces the risk of the fire spreading to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the unfolded structure of the cabinet door of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the fire extinguishing assembly of the utility model;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the structure of the middle A area;

[0021] Figure 5 This is a schematic diagram of the structure of the installation box of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the fire extinguisher and the mounting frame of the utility model.

[0023] In the figure: 1. cabinet body; 2. cabinet door; 3. mounting frame; 4. vent; 5. guide rail; 6. block; 7. shielding plate; 8. connecting wire; 9. pulley; 10. mounting box; 11. inspection baffle; 12. fire extinguisher; 13. nozzle; 14. lower pressure block; 15. push rod; 16. connecting rope; 17. sealing ring 1; 18. sealing ring 2. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: a power distribution cabinet with a fire extinguishing structure, including a cabinet body 1, the cabinet body 1 is hinged with a cabinet door 2, the inner wall of the cabinet body 1 is fixedly connected with a mounting frame 3, the side wall of the cabinet body 1 is provided with a vent 4, the inner wall of the cabinet body 1 is provided with a fire extinguishing assembly, and the fire extinguishing assembly includes the cabinet body 1, the cabinet door 2, the mounting frame 3, the vent 4, the guide rail 5, the block 6, the shielding plate 7, the connecting line 8, the pulley 9, the installation box 10, the maintenance baffle 11, the fire extinguisher 12, the nozzle 13, the lower pressure block 14, the push rod 15, the connecting rope 16, the sealing ring 17, and the sealing ring 2 18.

[0025] In one embodiment of the utility model, the end of the cabinet door 2 close to the cabinet body 1 is fixedly connected with a sealing ring 17, the inner wall of the vent 4 is fixedly connected with a sealing ring 2 18, the inner wall of the cabinet body 1 is fixedly connected with a guide rail 5, the inner wall of the cabinet body 1 is fixedly connected with a block 6, the guide rail 5 is slidably connected with a shielding plate 7, the side wall of the shielding plate 7 abuts against the inner wall of the cabinet body 1, the length of the shielding plate 7 is greater than the width of the vent 4, the width of the shielding plate 7 is greater than the width of the vent 4, the top end surface of the shielding plate 7 is fixedly connected with a connecting line 8, the end of the connecting line 8 away from the shielding plate 7 is fixedly connected to the inner top surface of the cabinet body 1, the inner top of the cabinet body 1 is provided with a pulley 9, the number of pulleys 9 is provided in a plurality of groups, and the plurality of groups of pulleys 9 are respectively provided at the inner top and the inner bottom of the cabinet body 1, and the pulley 9 is movably connected with the connecting line 8;

[0026] A fire extinguisher 12 is provided with a mounting box 10 fixedly connected to the outer wall of the cabinet 1, and a fire extinguisher 12 is arranged on the inner bottom of the mounting box 10. A maintenance baffle 11 is provided on the side of the mounting box 10 away from the cabinet 1, and the fire extinguisher 12 can be maintained and replaced through the maintenance baffle 11. A nozzle 13 is fixedly connected to the side wall of the fire extinguisher 12, and the nozzle 13 is socketed with the side wall of the mounting frame 3. The carbon dioxide sprayed from the nozzle 13 increases the carbon dioxide content in the cabinet 1, thereby extinguishing the flame. A lower pressure block 14 is movably connected to the inner wall of the mounting box 10, and the bottom end surface of the lower pressure block 14 abuts against the push rod 15, and one end of the push rod 15 away from the lower pressure block 14 abuts against the inner bottom of the mounting box 10, and a connecting rope 16 is fixedly connected to the side wall of the push rod 15, and one end of the connecting rope 16 away from the push rod 15 is fixedly connected to the side wall of the shielding plate 7.

[0027] When the electrical components in the distribution cabinet catch fire, the flame burns the connecting wire 8, and the baffle plate 7 loses the pull of the connecting wire 8 and moves downward due to the effect of gravity. The baffle plate 7 blocks the vent 4, isolates the inside of the cabinet 1 from the outside, and prevents oxygen from entering through the vent 4 to provide combustion aids for the flame combustion. When the baffle plate 7 moves downward, the connecting rope 16 is pulled to make the top rod 15 lose its support for the lower pressing block 14. The lower pressing block 14 moves downward to press the fire extinguisher 12, and the fire extinguisher 12 is filled with carbon dioxide. When the fire extinguisher 12 is pressed down, the carbon dioxide is sprayed into the cabinet 1 through the nozzle 13, increasing the carbon dioxide content in the cabinet 1, thereby suppressing the oxygen supply during the combustion process and achieving the effect of extinguishing the fire. By cutting off the air exchange and increasing the carbon dioxide content, the combustion aids required for combustion are reduced, the fire in the distribution cabinet is extinguished, and electric shock accidents are prevented. At the same time, problems such as circuit short circuit or insulation damage caused by water are avoided.

[0028] Furthermore, a sealing ring 17 is fixedly connected to one end of the cabinet door 2 close to the cabinet body 1, and a sealing ring 2 18 is fixedly connected to the inner wall of the vent 4. When the cabinet door 2 is closed, the sealing ring 17 improves the sealing between the cabinet body 1 and the cabinet door 2, and the baffle plate 7 falls, and the sealing ring 2 18 improves the sealing between the baffle plate 7 and the cabinet body 1, preventing oxygen from entering the cabinet body 1 through the vent 4 and the gap between the cabinet door 2 and the cabinet body 1, thereby improving the sealing inside the cabinet body 1 and the fire extinguishing effect of the carbon dioxide fire extinguisher 12, while reducing the risk of fire spreading to the outside.

[0029] In the utility model, when in use, when the electrical components in the distribution cabinet catch fire, the flame burns the connecting wire 8, the baffle plate 7 loses the pull of the connecting wire 8, and moves downward due to the effect of gravity. The baffle plate 7 blocks the vent 4, isolates the inside of the cabinet 1 from the outside, and prevents oxygen from entering through the vent 4. When the baffle plate 7 moves downward, the connecting rope 16 is pulled, so that the top rod 15 loses its support for the lower pressing block 14. The lower pressing block 14 moves downward to press the fire extinguisher 12, and the fire extinguisher 12 is filled with carbon dioxide. When the fire extinguisher 12 is pressed down, the carbon dioxide is sprayed into the cabinet 1 through the nozzle 13, increasing the carbon dioxide content in the cabinet 1 to achieve the effect of extinguishing the fire. Furthermore, the sealing ring 18 improves the sealing between the baffle plate 7 and the cabinet 1, prevents oxygen from entering the cabinet 1 through the vent 4 and the gap between the cabinet door 2 and the cabinet 1, improves the sealing inside the cabinet 1, and improves the fire extinguishing effect of the carbon dioxide fire extinguisher 12.

[0030] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A power distribution cabinet with a fire extinguishing structure, comprising a cabinet body (1), wherein the cabinet body (1) is hinged to a cabinet door (2), and a mounting frame (3) is fixedly connected to the inner wall of the cabinet body (1), characterized in that: The side wall of the cabinet (1) is provided with a ventilation hole (4), and the inner wall of the cabinet (1) is provided with a fire extinguishing assembly, which comprises: A shielding plate (7), the inner wall of the cabinet (1) is fixedly connected to a guide rail (5), the inner wall of the cabinet (1) is fixedly connected to a stopper (6), the guide rail (5) is slidably connected to the shielding plate (7), the top end surface of the shielding plate (7) is fixedly connected to a connecting wire (8), and one end of the connecting wire (8) away from the shielding plate (7) is fixedly connected to the inner top end surface of the cabinet (1); A fire extinguisher (12), wherein the outer wall of the cabinet (1) is fixedly connected to a mounting box (10), the inner bottom of the mounting box (10) is provided with a fire extinguisher (12), the side wall of the fire extinguisher (12) is fixedly connected to a nozzle (13), the inner wall of the mounting box (10) is movably connected to a lower pressing block (14), the bottom end surface of the lower pressing block (14) abuts against a push rod (15), one end of the push rod (15) away from the lower pressing block (14) abuts against the inner bottom of the mounting box (10), the side wall of the push rod (15) is fixedly connected to a connecting rope (16), and one end of the connecting rope (16) away from the push rod (15) is fixedly connected to the side wall of the shielding plate (7).

2. A power distribution cabinet with a fire extinguishing structure according to claim 1, characterized in that: A sealing ring 1 (17) is fixedly connected to one end of the cabinet door (2) close to the cabinet body (1), and a sealing ring 2 (18) is fixedly connected to the inner wall of the ventilation opening (4).

3. The power distribution cabinet with a fire extinguishing structure according to claim 1, characterized in that: The side wall of the shielding plate (7) abuts against the inner wall of the cabinet (1); the length of the shielding plate (7) is greater than the width of the ventilation opening (4); and the width of the shielding plate (7) is greater than the width of the ventilation opening (4).

4. The power distribution cabinet with a fire extinguishing structure according to claim 1, characterized in that: The inner top of the cabinet (1) is provided with a pulley (9), and the pulleys (9) are arranged in a plurality of groups. The plurality of groups of pulleys (9) are arranged at the inner top and inner bottom of the cabinet (1) respectively, and the pulleys (9) are movably connected to the connecting line (8).

5. The power distribution cabinet with a fire extinguishing structure according to claim 1, characterized in that: A maintenance baffle (11) is provided on a side of the installation box (10) away from the cabinet (1).

6. The power distribution cabinet with a fire extinguishing structure according to claim 1, characterized in that: The nozzle (13) is sleeved with the side wall of the mounting frame (3).

Images