Fire-fighting emergency fire extinguishing device for power distribution cabinet

Abstract

The utility model relates to a power distribution cabinet fire-fighting emergency fire extinguishing device which comprises a power distribution cabinet and dry powder bottles arranged on the two sides of the power distribution cabinet, the power distribution cabinet is provided with an installation seat, the installation seat is provided with a monitoring mechanism, the two sides of the power distribution cabinet are provided with heat dissipation holes, and the dry powder bottles are provided with electromagnetic valves. According to the fire-fighting emergency fire extinguishing device for the power distribution cabinet, when a fire occurs in the power distribution cabinet, the monitoring mechanism can quickly monitor a fire signal and trigger the electromagnetic valve and the electromagnet to be synchronously started. The one-way rolling mechanism relieves one-way rotation limitation through an electromagnet, so that the flame-retardant cloth wound on the cross rod can be rapidly unfolded downwards, and a magnetic guiding counterweight strip at the lower end of the flame-retardant cloth rapidly and stably shields heat dissipation holes under the action of gravity and adsorption of a magnetic strip in the power distribution cabinet, so that fire is effectively prevented from spreading outwards through the heat dissipation holes, and the service life of the power distribution cabinet is prolonged. And meanwhile, the air inflow in the power distribution cabinet is reduced, and further development of fire is inhibited.

Description

Technical Field

[0001] This utility model belongs to the field of fire protection technology, specifically relating to a fire emergency extinguishing device for a power distribution cabinet. Background Technology

[0002] In power systems, distribution cabinets are important power distribution equipment, and their safe operation is crucial. However, due to various reasons such as long-term high-load operation, aging of electrical components, and short circuits, there is a risk of fire inside distribution cabinets.

[0003] Currently, there are some shortcomings in the fire protection devices for distribution cabinets on the market. When a fire occurs, the distribution cabinet usually dissipates heat through the heat dissipation holes on both sides. These heat dissipation holes can become channels for air circulation during a fire, making it easy for the fire to spread and hindering firefighting efforts. Therefore, a fire emergency extinguishing device for distribution cabinets is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a fire emergency extinguishing device for a power distribution cabinet that can block the air intake channel in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A fire extinguishing device for a power distribution cabinet includes a power distribution cabinet and dry powder bottles arranged on both sides of the power distribution cabinet. The power distribution cabinet is provided with a mounting base, and a monitoring mechanism is provided on the mounting base. Heat dissipation holes are opened on both sides of the power distribution cabinet, and a solenoid valve is provided on the dry powder bottle.

[0007] It also includes:

[0008] A unidirectional winding mechanism is provided, which is positioned above the heat dissipation holes;

[0009] Flame-retardant fabric, wherein the flame-retardant fabric is wound onto a unidirectional winding mechanism;

[0010] An electromagnet is connected in parallel with a solenoid valve, and the solenoid valve and the electromagnet are activated synchronously, thereby blocking the heat dissipation holes below the flame-retardant cloth.

[0011] As a further optimization of this utility model, the unidirectional winding mechanism includes a crossbar, which is mounted on a mounting base. A ratchet is mounted on the crossbar, and a pawl is rotatably mounted on the mounting base. The pawl is in contact with the ratchet.

[0012] As a further optimization of this utility model, the flame-retardant cloth is wound around the crossbar, and a magnetic counterweight is provided at the lower end of the flame-retardant cloth.

[0013] As a further optimization of this utility model, the mounting base is provided with a bracket, and a magnetic block is inclinedly arranged on the ratchet, and the electromagnet can attract the magnetic block.

[0014] As a further optimization of this utility model, a magnetic strip is provided inside the power distribution cabinet. The magnetic strip is located below the heat dissipation holes and can attract the magnetic counterweight strip.

[0015] As a further optimization of this utility model, a connecting pipe is provided on the dry powder bottle, and a diversion pipe is provided above the mounting base, with the connecting pipe connected to the diversion pipe.

[0016] The beneficial effects of this utility model are as follows:

[0017] Unlike existing technologies, in actual use, when a fire occurs inside the distribution cabinet, the monitoring mechanism can quickly detect the fire signal and trigger the solenoid valve and electromagnet to start synchronously. The one-way winding mechanism releases the one-way rotation restriction through the electromagnet, allowing the flame-retardant cloth wrapped around the crossbar to quickly unfold downwards. Under the attraction of gravity and the magnetic strips inside the distribution cabinet, the magnetic counterweight at its lower end quickly and stably blocks the heat dissipation holes, effectively preventing the fire from spreading outwards through the heat dissipation holes. At the same time, it reduces the amount of air entering the distribution cabinet, suppressing the further development of the fire. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the mounting base structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the unidirectional winding mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure of the dry powder bottle of this utility model.

[0022] In the diagram: 1. Distribution cabinet; 2. Dry powder bottle; 21. Solenoid valve; 22. Connecting pipe; 23. Diverter pipe; 3. Mounting base; 4. Magnetic strip; 5. Monitoring mechanism; 6. One-way winding mechanism; 61. Crossbar; 62. Ratchet; 63. Pawl; 7. Flame-retardant cloth; 71. Magnetic counterweight; 8. Electromagnet; 81. Bracket; 82. Magnetic block. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Example 1

[0025] like Figure 1 - Figure 4 As shown, a fire emergency extinguishing device for a power distribution cabinet includes a power distribution cabinet 1 and dry powder bottles 2 arranged on both sides of the power distribution cabinet 1. The power distribution cabinet 1 is provided with a mounting base 3, and the mounting base 3 is provided with a monitoring mechanism 5. Heat dissipation holes are opened on both sides of the power distribution cabinet 1, and a solenoid valve 21 is provided on the dry powder bottle 2.

[0026] It also includes:

[0027] A one-way winding mechanism 6 is provided above the heat dissipation holes.

[0028] Flame-retardant cloth 7 is wound onto the unidirectional winding mechanism 6.

[0029] Electromagnet 8 is connected in parallel with solenoid valve 21. Solenoid valve 21 and electromagnet 8 are activated synchronously, thereby blocking the heat dissipation holes below the flame-retardant cloth 7.

[0030] The one-way winding mechanism 6 includes a crossbar 61, which serves as a support structure for winding the flame-retardant cloth 7, ensuring the orderly winding and unwinding of the flame-retardant cloth 7. The crossbar 61 is mounted on the mounting base 3, and a ratchet 62 is mounted on the crossbar 61. A pawl 63 is rotatably mounted on the mounting base 3. The pawl 63 is in contact with the ratchet 62, realizing the one-way rotation function, which can prevent the flame-retardant cloth 7 from unfolding randomly under normal conditions.

[0031] The flame-retardant cloth 7 is wrapped around the crossbar 61. It can be quickly unfolded in the event of a fire to block the heat dissipation holes on both sides of the distribution cabinet 1, effectively preventing the spread of fire. At the same time, it reduces the air intake in the distribution cabinet 1, suppresses the development of fire, and plays a good role in fire prevention and heat insulation. The lower end of the flame-retardant cloth 7 is equipped with a magnetic counterweight strip 71, which increases the weight of the flame-retardant cloth 7 and allows it to fall quickly when unfolded.

[0032] The mounting base 3 is equipped with a bracket 81, and a magnetic block 82 is inclinedly mounted on the ratchet 62 so that the pawl 63 can be flatly attracted to the electromagnet 8 after rotation. The electromagnet 8 can attract the magnetic block 82. The electromagnet 8 is connected in parallel with the solenoid valve 21 and starts synchronously. By attracting the magnetic block 82 on the ratchet 62, the ratchet 62 is released from the unidirectional rotation restriction, thereby controlling the unfolding of the flame-retardant cloth 7.

[0033] A magnetic strip 4 is installed inside the power distribution cabinet 1. The magnetic strip 4 is located below the heat dissipation holes. The magnetic strip 4 can attract the magnetic counterweight strip 71 to ensure that the flame-retardant cloth 7 can accurately and tightly cover the heat dissipation holes.

[0034] A connecting pipe 22 is provided on the dry powder bottle 2, and a diversion pipe 23 is provided above the mounting base 3. The dry powder delivered from the dry powder bottle 2 can be evenly sprayed into the distribution cabinet 1, which improves the coverage and fire extinguishing effect of the dry powder and enhances the fire extinguishing capability of the device. The connecting pipe 22 is connected to the diversion pipe 23.

[0035] It should be noted that the working principle of this fire emergency extinguishing device for the distribution cabinet is as follows: When the distribution cabinet 1 is working normally, the heat dissipation holes on both sides can dissipate heat. When a fire occurs inside the distribution cabinet 1, after the monitoring mechanism 5 detects the fire signal, it will trigger the solenoid valve 21 and the electromagnet 8 connected in parallel to it to start synchronously. First, the one-way winding mechanism 6 starts to work. The crossbar 61 in the one-way winding mechanism 6 is set on the mounting base 3. The ratchet 62 on the crossbar 61 is in contact with the pawl 63 rotatably set on the mounting base 3. The electromagnet 8 is set on the bracket 81 on the mounting base 3. The ratchet 62 is inclinedly set with a magnetic block 82. The electromagnet 8 attracts... The magnetic block 82 releases the ratchet 62 from its unidirectional rotation restriction, causing the flame-retardant cloth 7 wrapped around the crossbar 61 to unfold downwards under the action of the magnetic counterweight 71. The magnetic counterweight 71 falls rapidly under the action of gravity. At the same time, the magnetic strip 4 located below the heat dissipation hole in the distribution cabinet 1 will also attract the magnetic counterweight 71, ultimately blocking the heat dissipation hole to prevent the fire from spreading and reduce the air intake in the distribution cabinet 1. Meanwhile, the solenoid valve 21 on the dry powder bottle 2 opens, and the dry powder bottle 2 delivers dry powder to the diversion pipe 23 above the mounting base 3 through the connecting pipe 22. The diversion pipe 23 then sprays the dry powder into the distribution cabinet 1 to extinguish the fire.

[0036] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A fire extinguishing device for a power distribution cabinet, comprising a power distribution cabinet (1) and dry powder bottles (2) disposed on both sides of the power distribution cabinet (1), wherein a mounting base (3) is provided on the power distribution cabinet (1), and a monitoring mechanism (5) is provided on the mounting base (3), characterized in that: The power distribution cabinet (1) has heat dissipation holes on both sides, and the dry powder bottle (2) is equipped with a solenoid valve (21); It also includes: A one-way winding mechanism (6) is provided above the heat dissipation holes; Flame-retardant cloth (7) is wound around a one-way winding mechanism (6); Electromagnet (8) is connected in parallel with solenoid valve (21). Solenoid valve (21) and electromagnet (8) are activated synchronously, so that the heat dissipation holes are blocked below the flame retardant cloth (7).

2. The fire extinguishing device for a power distribution cabinet according to claim 1, characterized in that: The unidirectional winding mechanism (6) includes a crossbar (61), which is mounted on a mounting base (3). A ratchet (62) is mounted on the crossbar (61), and a pawl (63) is rotatably mounted on the mounting base (3). The pawl (63) is in contact with the ratchet (62).

3. The fire extinguishing device for a power distribution cabinet according to claim 2, characterized in that: The flame-retardant cloth (7) is wound around the crossbar (61), and a magnetic counterweight (71) is provided at the lower end of the flame-retardant cloth (7).

4. The fire extinguishing device for a power distribution cabinet according to claim 2, characterized in that: The mounting base (3) is provided with a bracket (81), and a magnetic block (82) is inclinedly provided on the ratchet (62). The electromagnet (8) can attract the magnetic block (82).

5. A fire-fighting emergency extinguishing device for a power distribution cabinet according to claim 3, characterized in that: The power distribution cabinet (1) is equipped with a magnetic strip (4), which is located below the heat dissipation hole. The magnetic strip (4) can attract the magnetic counterweight strip (71).

6. The fire extinguishing device for a distribution cabinet according to claim 1, characterized in that: A connecting pipe (22) is provided on the dry powder bottle (2), and a diversion pipe (23) is provided above the mounting base (3). The connecting pipe (22) is connected to the diversion pipe (23).

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