Fire extinguishing device for electric appliance cabinet

Abstract

The utility model discloses an electric appliance cabinet fire extinguishing device which comprises an electric appliance cabinet body, ventilation openings are formed in the left end and the right end of the electric appliance cabinet body, mounting grooves are formed in the left end and the right end of the electric appliance cabinet body, sealing plates are slidably connected into the mounting grooves respectively, a plurality of tension springs are arranged at the lower ends of the sealing plates, and the lower ends of the tension springs are arranged on the electric appliance cabinet body. A sealing plate is arranged at the left end and the right end of the electric appliance cabinet body, a plurality of through holes corresponding to the ventilation openings are formed in the sealing plate, a high-pressure inert gas tank is fixed in the electric appliance cabinet body, a cylinder is rotationally connected to the upper end of the high-pressure inert gas tank, and an upper ring is fixed to the upper end of the cylinder and rotationally connected with the electric appliance cabinet body through a torsional spring. Convection is formed in the electric appliance cabinet body, it is ensured that external air can quickly penetrate through the electric appliance cabinet body, heat in the electric appliance cabinet body can be taken away, heat dissipation is further carried out on electrical elements in the electric appliance cabinet body, and spontaneous combustion of the electrical elements due to too high temperature is prevented.

Description

Technical Field

[0001] This utility model relates to the field of electrical cabinets, specifically to a fire extinguishing device for electrical cabinets. Background Technology

[0002] Electrical cabinets are commonly used electrical devices in power equipment. They are the final stage equipment in the power distribution system, playing an important role in voltage regulation, current distribution, and switching. They occupy an important position in people's daily lives. With the development of technology, existing distribution cabinets have advantages such as good dynamic and thermal stability, convenient assembly, and strong practicality, and are therefore widely used.

[0003] The following situations may occur during the use of the power distribution cabinet:

[0004] If the heat generated during the long-term operation of electrical equipment is not dissipated in time, it may cause the temperature to become too high and burn, resulting in damage to the electrical components inside the distribution cabinet.

[0005] Because some electrical cabinets are fully enclosed, once a fire starts inside, the cabinet will be at a high temperature. Firefighters will be unable to open the cabinet or extinguish the fire from the outside. In addition, different devices are connected inside the cabinet, and a fire in the cabinet will affect the normal use of other devices. Utility Model Content

[0006] To address the above problems, this utility model provides a fire extinguishing device for electrical cabinets, thus solving the aforementioned issues.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electrical cabinet fire extinguishing device, comprising an electrical cabinet body, with ventilation openings at both the left and right ends of the electrical cabinet body, and mounting grooves at both ends of the electrical cabinet body, with sealing plates slidably connected in the mounting grooves respectively, and multiple tension springs at the lower end of the sealing plates, the lower ends of the tension springs being on the electrical cabinet body, and multiple through holes corresponding to the ventilation openings on the sealing plates, a high-pressure inert gas tank fixed inside the electrical cabinet body, a cylinder rotatably connected to the upper end of the high-pressure inert gas tank, an upper ring fixed to the upper end of the cylinder, the upper ring being rotatably connected to the electrical cabinet body via a torsion spring, two symmetrically arranged connecting rods rotatably connected to the outer side of the upper ring, the other ends of the connecting rods being inserted into the sealing plates, a fixing ring fixed to the upper ring, and a thermosensitive glass tube being snapped into the fixing ring, the thermosensitive glass tube being fixedly connected to the electrical cabinet body.

[0008] Preferably, a bottom ring is fixed to the lower end of the cylinder, the bottom ring is rotatably connected to the high-pressure inert gas tank, multiple exhaust holes are opened along the circumference of the outer side of the bottom ring, multiple connecting holes are opened along the circumference of the lower end of the bottom ring, and multiple air outlet holes are opened at the upper end of the high-pressure inert gas tank, with the connecting holes and the high-pressure inert gas tank being arranged intersectingly.

[0009] Preferably, the bottom ring is in communication with the interior of the cylinder, and the surface of the cylinder has multiple diffusion holes.

[0010] Preferably, the upper four corners of the appliance cabinet body are fixed with lifting rings, the upper part of the appliance cabinet body is fixed with two symmetrical handles, and the lower four corners of the appliance cabinet body are fixed with casters.

[0011] Preferably, a bracket is fixed inside the appliance cabinet body, and a mounting plate is provided on the bracket. The cylinder passes through the mounting plate, and the cylinder is rotatably connected to the mounting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] By opening ventilation openings at both ends of the electrical cabinet, convection is created inside the cabinet, ensuring that external air can quickly pass through it. This helps to remove heat from the cabinet and further dissipate heat from the electrical components, preventing them from overheating and spontaneously combusting.

[0014] The high-pressure inert gas canister is connected to a cylindrical structure. A heat-sensitive glass tube is used to determine if there is a fire inside the electrical cabinet. This allows for a rapid response, filling the cabinet with gas from the high-pressure inert gas canister. Simultaneously, through the cooperation of torsion springs, tension springs, and connecting rods, the heat-sensitive glass tube breaks after a fire starts, no longer obstructing the rotation of the upper ring. After the upper ring rotates, it pulls the connecting rod out of the sealing plate, and the tension spring pulls the sealing plate down, causing the through hole and ventilation opening to no longer align, thus sealing the electrical cabinet. This allows the gas from the high-pressure inert gas canister to quickly fill the cabinet, achieving a rapid fire extinguishing effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall internal structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall cylindrical structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall design of this utility model.

[0019] The diagram shows the following labels: 1. Electrical cabinet body; 2. Sealing plate; 3. Cylinder; 4. High-pressure inert gas tank; 101. Ventilation port; 102. Mounting groove; 103. Lifting ring; 104. Handle; 21. Tension spring; 22. Through hole; 31. Bottom ring; 32. Upper ring; 33. Connecting rod; 34. Diffuser hole; 311. Exhaust hole; 312. Connecting hole; 321. Fixing ring; 322. Thermosensitive glass tube; 41. Vent hole; 5. Bracket. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] Please see Figure 1 , Figure 2 and Figure 3An electrical cabinet fire extinguishing device includes an electrical cabinet body 1. Ventilation openings 101 are provided at both the left and right ends of the electrical cabinet body 1. By providing ventilation openings 101 at both ends of the electrical cabinet body 1, convection is created inside the electrical cabinet body 1, ensuring that external air can quickly pass through the electrical cabinet body 1. This facilitates the removal of heat from inside the electrical cabinet body 1, further dissipating heat from the electrical components inside the electrical cabinet body 1, preventing overheating and spontaneous combustion of the electrical components. Mounting grooves 102 are provided at both ends of the electrical cabinet body 1. A sealing plate 2 is slidably connected within the mounting groove 102. Multiple tension springs 21 are located at the lower end of each sealing plate 2, with the lower ends of the tension springs 21 attached to the electrical cabinet body 1. Multiple through holes 22 corresponding to the ventilation openings 101 are provided on the sealing plate 2. A high-pressure inert gas tank 4 is fixed inside the electrical cabinet body 1. A cylinder 3 is rotatably connected to the upper end of the high-pressure inert gas tank 4. An upper ring 32 is fixed to the upper end of the cylinder 3. The upper ring 32 is rotatably connected to the electrical cabinet body 1 via a torsion spring, which is in a torsional state. Two symmetrically arranged connecting rods 33 are rotatably connected on the outer side. The other end of each connecting rod 33 is inserted into the sealing plate 2. A fixing ring 321 is fixed on the upper ring 32. The outer wall of the fixing ring 321 has a notch. The fixing ring 321 is secured to the heat-sensitive glass tube 322 through the notch. Through the cooperation of the torsion spring, the tension spring 21 and the connecting rods 33, after the fire starts, the heat-sensitive glass tube 322 breaks and no longer obstructs the rotation of the upper ring 32. After the upper ring 32 rotates, it pulls the connecting rods 33 out of the sealing plate 2. The tension spring 21 pulls the sealing plate 2 down, so that the through hole 22 is connected to the ventilation. When 101 is not in correspondence, the electrical cabinet body 1 is sealed, which facilitates the rapid filling of the interior of the electrical cabinet body 1 with gas from the high-pressure inert gas tank 4, achieving a rapid fire extinguishing effect. The thermal glass tube 322 is fixedly connected to the electrical cabinet body 1 and is connected to the cylinder 3 through the high-pressure inert gas tank 4. The thermal glass tube 322 is used to determine whether there is a fire inside the electrical cabinet body 1, which facilitates a rapid response to fill the interior of the electrical cabinet body 1 with gas from the high-pressure inert gas tank 4. At the same time, the thermal glass tube 322 restricts the rotation of the upper ring 32.

[0022] Please see Figure 1 , Figure 2 and Figure 3A bottom ring 31 is fixed to the lower end of the cylinder 3. The bottom ring 31 is rotatably connected to the high-pressure inert gas tank 4. The bottom ring 31 is used to connect the high-pressure inert gas tank 4 and transfer gas. Multiple exhaust holes 311 are formed along the circumference of the outer side of the bottom ring 31. Multiple connecting holes 312 are formed along the circumference of the lower end of the bottom ring 31. The connecting holes 312 are used to discharge the gas from the high-pressure inert gas tank 4, allowing the gas in the high-pressure inert gas tank 4 to quickly fill the lower end of the electrical cabinet body 1. Multiple air outlet holes 41 are formed at the upper end of the high-pressure inert gas tank 4. The connecting holes 312 are intersected with the high-pressure inert gas tank 4. The bottom ring 31 is connected to the interior of the cylinder 3. The surface of the cylinder 3... Multiple diffusion holes 34 are provided. In the initial state, the connecting hole 312 on the bottom ring 31 intersects with the vent hole 41 on the high-pressure inert gas tank 4. The bottom ring 31 blocks the vent hole 41 to prevent the gas in the high-pressure inert gas tank 4 from escaping. When the inside of the electrical cabinet body 1 catches fire, the heat-sensitive glass tube 322 breaks, and the torsion spring rotates the upper ring 32, which in turn rotates the cylinder 3 and the bottom ring 31. At this time, the connecting hole 312 and the vent hole 41 are connected, and the high-pressure inert gas in the high-pressure inert gas tank 4 is quickly discharged from the connecting hole 312 and the diffusion hole 34 respectively. This allows the high-pressure inert gas to quickly fill the inside of the electrical cabinet body 1, achieving a rapid fire extinguishing effect and protecting the electrical appliances inside the electrical cabinet body 1 from being completely burned.

[0023] Please see Figure 1 , Figure 2 and Figure 4 The electrical cabinet body 1 has four lifting rings 103 fixed at the upper corners of its upper end, which facilitates the movement of the device with the aid of a lifting device. The electrical cabinet body 1 also has two symmetrical handles 104 fixed at its upper end, which facilitates the lifting of the device by workers. The electrical cabinet body 1 has four casters fixed at its lower corners, which facilitates the movement of the device. The electrical cabinet body 1 has a bracket 5 fixed inside, and a mounting plate is provided on the bracket 5. The cylinder 3 passes through the mounting plate and is rotatably connected to the mounting plate. The mounting plate is used to fix electrical components, which is convenient for fixing the electrical components.

[0024] When using this utility model:

[0025] First, when the internal components of the electrical cabinet body 1 catch fire, the internal temperature of the electrical cabinet body 1 will rise.

[0026] Then, the temperature rise will cause the thermal glass tube 322 to break. The breakage of the thermal glass tube 322 will no longer hinder the rotation of the upper ring 32. The torsion spring will cause the upper ring 32 to rotate, and then the cylinder 3 and the bottom ring 31 will rotate.

[0027] Next, after the upper ring 32 rotates, the connecting rod 33 is pulled out from the sealing plate 2, and the tension spring 21 pulls the sealing plate 2 down, so that the through hole 22 is no longer in line with the vent 101, so that the electrical cabinet body 1 is sealed. At the same time, the connecting hole 312 is connected to the air outlet 41.

[0028] Finally, the high-pressure inert gas in the high-pressure inert gas tank 4 is quickly discharged from the connecting hole 312 and the diffusion hole 34 respectively. At this time, it is convenient for the high-pressure inert gas to quickly fill the interior of the electrical cabinet body 1, so as to achieve the effect of rapid fire extinguishing and protect the electrical appliances inside the electrical cabinet body 1 from being completely burned.

[0029] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electrical cabinet fire extinguishing apparatus, characterized by: The appliance cabinet includes an electrical cabinet body (1), with ventilation openings (101) at both the left and right ends. Mounting grooves (102) are provided at both the left and right ends of the electrical cabinet body (1). Sealing plates (2) are slidably connected in the mounting grooves (102). Multiple tension springs (21) are provided at the lower end of the sealing plate (2). The lower ends of the tension springs (21) are on the electrical cabinet body (1). Multiple through holes (22) corresponding to the ventilation openings (101) are provided on the sealing plate (2). A high-pressure inert gas tank (4) is fixed inside the electrical cabinet body (1). The upper end of the high-pressure inert gas tank (4) is rotatably connected to a cylinder (3). The upper end of the cylinder (3) is fixed with an upper ring (32). The upper ring (32) is rotatably connected to the electrical cabinet body (1) through a torsion spring. Two symmetrically arranged connecting rods (33) are rotatably connected to the outside of the upper ring (32). The other end of the connecting rods (33) is inserted into the sealing plate (2). A fixing ring (321) is fixed on the upper ring (32). A thermosensitive glass tube (322) is snapped into the fixing ring (321). The thermosensitive glass tube (322) is fixedly connected to the electrical cabinet body (1).

2. An electrical cabinet fire suppression apparatus according to claim 1, wherein: The lower end of the cylinder (3) is fixed with a bottom ring (31), which is rotatably connected to the high-pressure inert gas tank (4). Multiple exhaust holes (311) are opened on the outer side of the bottom ring (31) along its circumference. Multiple connecting holes (312) are opened on the lower end of the bottom ring (31) along its circumference. Multiple air outlet holes (41) are opened on the upper end of the high-pressure inert gas tank (4). The connecting holes (312) are arranged intersectingly with the high-pressure inert gas tank (4).

3. An electrical cabinet fire suppression apparatus according to claim 2, wherein: The bottom ring (31) is connected to the interior of the cylinder (3), and the surface of the cylinder (3) is provided with multiple diffusion holes (34).

4. The fire extinguishing device for an electrical cabinet according to claim 1, characterized in that: The upper four corners of the appliance cabinet body (1) are respectively fixed with hanging rings (103), the upper end of the appliance cabinet body (1) is fixed with two left and right symmetrical handles (104), and the lower four corners of the appliance cabinet body (1) are respectively fixed with casters.

5. An electrical cabinet fire suppression apparatus according to claim 1, wherein: The appliance cabinet body (1) has a bracket (5) fixed inside. The bracket (5) is provided with an mounting plate. The cylinder (3) passes through the mounting plate and is rotatably connected to the mounting plate.

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