Explosion-proof high-voltage power distribution cabinet

Abstract

The utility model relates to the technical field of power distribution cabinets, and discloses an explosion-proof high-voltage power distribution cabinet, which comprises a cabinet body, a cabinet door connected to the outer surface of the cabinet body through hinges, an electric push rod rotatably connected to the top end of the cabinet door, a baffle connected to the inner surface of the cabinet door through screws, an arc-shaped plate fixedly connected to the inner surface of the cabinet door, and a supporting rod inserted into the bottom of the cabinet door. The outer surfaces of the supporting rods are sleeved with springs, and the bottom ends of the supporting rods are connected with universal wheels. The electromagnetic valve is started to be opened, so that the pressure storage type gas cylinder starts to release pressure, carbon dioxide gas in the pressure storage type gas cylinder can enter the bent pipe and then enter the perforated pipe, the carbon dioxide gas is sprayed out through the air holes and enters the cabinet body, air in the cabinet body can be extruded out, and then the carbon dioxide gas enters the cabinet body. And the cabinet body is filled with a large amount of carbon dioxide gas, so that the effects of air isolation and flame retardance are achieved, explosion is avoided, and the explosion-proof effect of the power distribution cabinet is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution cabinets, in particular to an explosion-proof high-voltage distribution cabinet. Background Technique

[0002] An explosion-proof high-voltage distribution cabinet refers to an electrical device that plays roles such as on-off, control, or protection in the processes of power generation, transmission, distribution, power conversion, and consumption in the power system, with a voltage range of 3.6 kV - 550 kV. One of the core features of an explosion-proof high-voltage cabinet is its excellent explosion-proof performance. It adopts a special design that can effectively prevent explosion accidents caused by sparks or arcs generated by high-voltage equipment. By maintaining a positive pressure state inside the cabinet, the high-voltage explosion-proof cabinet prevents external flammable gases or dust from entering, thus ensuring the safe operation of the equipment. It can also withstand the impact of high voltage and high current, ensuring the stable operation of high-voltage equipment.

[0003] The cabinet door of the explosion-proof high-voltage distribution cabinet is made of strong materials, and many components such as instruments, relays, and control switches are installed on its outer surface, so the weight of the cabinet door is relatively heavy. During the maintenance process of the distribution cabinet, the cabinet door needs to be opened. After a long time, the cabinet door is prone to sink, which may cause the cabinet door to be difficult to close with the cabinet body. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides an explosion-proof high-voltage distribution cabinet, which has the advantages of effectively preventing the cabinet door from sinking and facilitating the docking and closing of the cabinet door with the cabinet body, and solves the above technical problems.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: an explosion-proof high-voltage distribution cabinet, including a cabinet body, the outer surface of the cabinet body is connected with a cabinet door through a hinge, the top end of the cabinet door is rotatably connected with an electric push rod, the inner surface of the cabinet door is connected with a baffle through a screw, and the inner surface of the cabinet door is fixedly connected with an arc plate. A support rod penetrates through the bottom of the cabinet door, a spring is sleeved on the outer surface of the support rod, and the bottom end of the support rod is connected with a universal wheel. Both sides inside the cabinet body are fixedly connected with shaft rods, one end of the shaft rod is rotatably connected with a pulley, an installation plate is fixedly connected to the outer wall of the cabinet body, a pressure storage gas cylinder is installed on the top surface of the installation plate, a solenoid valve is installed at the outlet of the pressure storage gas cylinder, one end of the solenoid valve is connected with a bent pipe, one end of the bent pipe is connected with a porous pipe, a smoke alarm is installed on the top of the cabinet body, and a controller is installed on the outer wall of the cabinet body.

[0008] Preferably, a control switch is installed on the cabinet door, the control switch is connected to the controller through a wire, and the output end of the controller is connected to the electric push rod through a wire.

[0009] With the above technical solution, the output end of the control switch is connected to the input end of the controller, and one of the output ends of the controller is connected to the electric push rod. When the control switch is started, a signal can be sent to the controller, and the controller then controls the electric push rod to start. In this way, the push rod end of the electric push rod extends to open the cabinet door, which is convenient for automatically opening the cabinet door.

[0010] Preferably, a support frame is installed at the bottom of the cabinet body. The bottom end of the support frame is flush with the bottom end of the universal wheel, and a limiting piece is fixedly connected to the top end of the support rod.

[0011] With the above technical solution, the support frame is used to support the cabinet body. When the cabinet door is opened, it will drive the support rod to move, and the support rod will then drive the universal wheel to slide on the ground. Since a spring is provided to abut between the bottom end of the cabinet door and the universal wheel, when the ground is not in a horizontal state, the support rod can automatically adjust its length so that the universal wheel can adapt to the uneven ground, and the spring has a certain strength to play a certain supporting role for the cabinet door, and can prevent the cabinet door from sinking when the cabinet door is opened.

[0012] Preferably, two arc-shaped plates are symmetrically welded on the inner surface of the cabinet door, and heat dissipation holes are opened at a position near the bottom of the outer surface of the cabinet door. A plurality of heat dissipation fans are installed at a position near the top of the back surface of the cabinet body, and a plurality of through holes are opened at the bottom end of the cabinet door.

[0013] With the above technical solution, during the process of closing the cabinet door and the cabinet body, the arc-shaped plate slides into contact with the pulley. When the cabinet door is closed on the cabinet body, the two arc-shaped plates will contact the two pulleys. In this way, by setting the pulley and the arc-shaped plate, it can play a supporting role for the cabinet door and can further prevent the cabinet door from sinking.

[0014] Preferably, a clamp is installed on the inner wall of the cabinet body, a porous pipe is clamped in the clamp, a plurality of air holes are equidistantly opened on the outer surface of the porous pipe, and carbon dioxide gas is injected into the pressure storage gas cylinder.

[0015] With the above technical solution, by setting a plurality of clamps, it can be used to fix the porous pipe, so that the porous pipe is close to the inner wall of the cabinet body. When the solenoid valve is started to be opened and the pressure storage gas cylinder starts to release pressure, the carbon dioxide gas in the pressure storage gas cylinder will enter the elbow pipe, and then enter the porous pipe. The carbon dioxide gas is then ejected through a plurality of air holes and enters the interior of the cabinet body. In this way, the air inside the cabinet body will be squeezed out, and a large amount of carbon dioxide gas will fill the cabinet body, thereby playing a role in isolating the air and achieving a flame retardant effect, avoiding explosion, and improving the explosion-proof effect of the power distribution cabinet.

[0016] Preferably, the output end of the controller is connected to the solenoid valve through a wire, and the input end of the controller is connected to the smoke alarm through a wire.

[0017] Through the above technical solution, when a malfunction occurs in the electrical components installed inside the cabinet body and smoke appears, the smoke detector can detect the smoke inside the cabinet body in a timely manner. In this way, the smoke detector emits an alarm sound in a timely manner and sends a signal to the controller, and the controller then activates the solenoid valve, so that potential dangerous situations that may occur inside the cabinet body can be automatically prevented.

[0018] Compared with the prior art, the present utility model provides an explosion-proof high-voltage power distribution cabinet, which has the following beneficial effects:

[0019] 1. In the present utility model, two arc-shaped plates are arranged on the inner surface of the cabinet door, and shaft rods are connected to both sides of the inner wall of the cabinet body. One end of the shaft rod is rotatably connected to a pulley. During the closing process of the cabinet door and the cabinet body, the arc-shaped plate slides into contact with the pulley, so that there is no obstruction during the closing process. When the cabinet door is closed on the cabinet body, the two arc-shaped plates will contact the two pulleys. In this way, the pulley and the arc-shaped plate can support the cabinet door, effectively preventing the cabinet door from sinking. And during the opening process of the cabinet door, the support rod will be driven to move, and the support rod will then drive the universal wheel to slide on the ground. Since a spring is provided to abut between the bottom end of the cabinet door and the universal wheel, when the ground is not in a horizontal state, the support rod can automatically adjust its length, so that the universal wheel can adapt to the uneven ground, and the spring has a certain strength to support the cabinet door to a certain extent. The overall structure can effectively prevent the cabinet door from sinking.

[0020] 2. When a malfunction occurs in the electrical components installed inside the cabinet body of the present utility model and smoke appears, the smoke detector can detect the smoke inside the cabinet body in a timely manner. In this way, the smoke detector emits an alarm sound in a timely manner and sends a signal to the controller, and the controller then activates the solenoid valve to open it, so that the pressure storage cylinder starts to release pressure. In this way, the carbon dioxide gas in the pressure storage cylinder will enter the elbow pipe, and then enter the porous pipe. The carbon dioxide gas will be ejected through multiple air holes and enter the inside of the cabinet body. In this way, the air inside the cabinet body will be squeezed out, and a large amount of carbon dioxide gas will fill the cabinet body, thereby playing a role in isolating the air and achieving a flame-retardant effect, avoiding explosion, and improving the explosion-proof effect of the power distribution cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional schematic diagram of the structure of the present utility model;

[0022] Figure 2 is the structure of the present utility model Figure 1 partial enlarged schematic diagram of A in;

[0023] Figure 3 is a schematic diagram of the back of the structure of the present utility model;

[0024] Figure 4 is the structure of the present utility model Figure 1Partial enlarged schematic diagram of B;

[0025] Figure 5 It is a three-dimensional schematic diagram of the structure of the present utility model after removing the cabinet door.

[0026] Wherein: 1, cabinet body; 2, cabinet door; 3, electric push rod; 4, baffle; 5, arc plate; 6, support rod; 7, spring; 8, universal wheel; 9, shaft rod; 10, pulley; 11, mounting plate; 12, pressure storage gas cylinder; 13, solenoid valve; 14, elbow pipe; 15, perforated pipe; 16, smoke alarm; 17, controller; 18, support frame; 19, heat dissipation fan; 20, clamp; 21, through hole. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1-5 , an explosion-proof high-voltage power distribution cabinet, including a cabinet body 1, the outer surface of the cabinet body 1 is connected with a cabinet door 2 through a hinge, the top end of the cabinet door 2 is rotatably connected with an electric push rod 3, the inner surface of the cabinet door 2 is connected with a baffle 4 by screws, and the inner surface of the cabinet door 2 is fixedly connected with an arc plate 5. A support rod 6 is inserted through the bottom of the cabinet door 2, a spring 7 is sleeved on the outer surface of the support rod 6, and the bottom end of the support rod 6 is connected with a universal wheel 8. Both sides inside the cabinet body 1 are fixedly connected with shaft rods 9, one end of the shaft rod 9 is rotatably connected with a pulley 10, a mounting plate 11 is fixedly connected to the outer wall of the cabinet body 1, a pressure storage gas cylinder 12 is installed on the top surface of the mounting plate 11, a solenoid valve 13 is installed at the outlet of the pressure storage gas cylinder 12, one end of the solenoid valve 13 is connected with an elbow pipe 14, one end of the elbow pipe 14 is connected with a perforated pipe 15, a smoke alarm 16 is installed on the top of the cabinet body 1, and a controller 17 is installed on the outer wall of the cabinet body 1.

[0029] Specifically, a control switch is installed on the cabinet door 2, the control switch is connected to the controller 17 through a wire, and the output end of the controller 17 is connected to the electric push rod 3 through a wire. The advantage is that the output end of the control switch is connected to the input end of the controller 17, and one of the output ends of the controller 17 is connected to the electric push rod 3. When the control switch is started, a signal can be sent to the controller 17, and the controller 17 then controls the electric push rod 3 to start. In this way, the push rod end of the electric push rod 3 extends to open the cabinet door 2, so it is convenient to automatically open the cabinet door 2.

[0030] Specifically, a support frame 18 is installed at the bottom of the cabinet body 1. The bottom end of the support frame 18 is flush with the bottom end of the universal wheel 8. The top end of the support rod 6 is fixedly connected with a limiting piece. The advantage is that the support frame 18 is used to support the cabinet body 1. When the cabinet door 2 is opened, it will drive the support rod 6 to move. The support rod 6 will then drive the universal wheel 8 to slide on the ground. Since the spring 7 is arranged to abut between the bottom end of the cabinet door 2 and the universal wheel 8, when the ground is not in a horizontal state, the support rod 6 can automatically adjust its length so that the universal wheel 8 can adapt to the uneven ground. And the spring 7 has a certain strength and can play a certain supporting role for the cabinet door 2, which can prevent the cabinet door 2 from sinking when the cabinet door 2 is opened.

[0031] Specifically, two arc-shaped plates 5 are symmetrically welded on the inner surface of the cabinet door 2, and heat dissipation holes are opened at a position close to the bottom of the outer surface of the cabinet door 2. A plurality of heat dissipation fans 19 are installed at a position close to the top of the back surface of the cabinet body 1. A plurality of through holes 21 are opened at the bottom end of the cabinet door 2. The advantage is that during the closing process of the cabinet door 2 and the cabinet body 1, the arc-shaped plate 5 slides into contact with the pulley 10. When the cabinet door 2 is closed on the cabinet body 1, the two arc-shaped plates 5 will contact the two pulleys 10. In this way, by setting the pulley 10 to cooperate with the arc-shaped plate 5, it can play a supporting role for the cabinet door 2 and can further prevent the cabinet door 2 from sinking.

[0032] Specifically, a clamp 20 is installed on the inner wall of the cabinet body 1, and a porous pipe 15 is clamped in the clamp 20. A plurality of air holes are equidistantly opened on the outer surface of the porous pipe 15, and carbon dioxide gas is injected into the pressure storage cylinder 12. The advantage is that by setting a plurality of clamps 20, it can be used to fix the porous pipe 15, so that the porous pipe 15 is close to the inner wall of the cabinet body 1. When the solenoid valve 13 is started to be opened and the pressure storage cylinder 12 starts to release pressure, the carbon dioxide gas in the pressure storage cylinder 12 will enter the elbow pipe 14, and then enter the porous pipe 15. The carbon dioxide gas will be ejected through a plurality of air holes and enter the interior of the cabinet body 1. In this way, the air inside the cabinet body 1 will be squeezed out, and a large amount of carbon dioxide gas will fill the cabinet body 1, thereby playing a role in isolating the air and achieving a flame retardant effect, avoiding explosion, and improving the explosion-proof effect of the power distribution cabinet.

[0033] Specifically, the output end of the controller 17 is connected to the solenoid valve 13 through a wire, and the input end of the controller 17 is connected to the smoke alarm 16 through a wire. The advantage is that when the electrical components installed inside the cabinet body 1 fail and smoke appears, the smoke alarm 16 can detect the smoke inside the cabinet body 1 in time. In this way, the smoke alarm 16 will emit an alarm sound in time and send a signal to the controller 17, and the controller 17 will start the solenoid valve 13. In this way, it can automatically prevent possible dangerous situations inside the cabinet body 1.

[0034] In use, the electric push rod 3 can be started through the control switch installed on the cabinet door 2 to make its push rod end extend, and then the cabinet door 2 can be opened. When the cabinet door 2 is opened, the support rod 6 will be driven to move, and the support rod 6 will then drive the universal wheel 8 to slide on the ground. Since the spring 7 is provided to abut between the bottom end of the cabinet door 2 and the universal wheel 8, the support rod 6 can automatically adjust its length when the ground is not in a horizontal state, so that the universal wheel 8 can adapt to the uneven ground. When the electrical components installed inside the cabinet body 1 fail and smoke appears, the smoke detector 16 can detect the smoke inside the cabinet body 1 in time. In this way, the smoke detector 16 will emit an alarm sound in time and send a signal to the controller 17. The controller 17 will then start the solenoid valve 13 to open it, so that the pressure storage cylinder 12 starts to release pressure. In this way, the carbon dioxide gas in the pressure storage cylinder 12 will enter the elbow pipe 14, and then enter the porous pipe 15. The carbon dioxide gas will be ejected through multiple pores and enter the inside of the cabinet body 1. In this way, the air inside the cabinet body 1 will be squeezed out, and a large amount of carbon dioxide gas will fill the cabinet body 1, thereby playing a role in isolating the air and achieving a flame retardant effect to avoid explosion.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof high-voltage power distribution cabinet, comprising a cabinet body (1), characterized in that: The outer surface of the cabinet body (1) is connected to a cabinet door (2) via a hinge, the top of the cabinet door (2) is rotatably connected to an electric push rod (3), the inner surface of the cabinet door (2) is connected to a baffle (4) via screws, and the inner surface of the cabinet door (2) is fixedly connected to an arc plate (5), a support rod (6) is inserted through the bottom of the cabinet door (2), a spring (7) is sleeved on the outer surface of the support rod (6), and the bottom end of the support rod (6) is connected to a universal wheel (8), and the inner two sides of the cabinet body (1) are fixedly connected to a shaft rod (9), so that One end of the shaft (9) is rotatably connected to a pulley (10); a mounting plate (11) is fixedly connected to the outer wall of the cabinet (1); a pressure-storage gas cylinder (12) is mounted on the top surface of the mounting plate (11); an electromagnetic valve (13) is mounted on the outlet of the pressure-storage gas cylinder (12); one end of the electromagnetic valve (13) is connected to a curved pipe (14); one end of the curved pipe (14) is connected to a porous pipe (15); a smoke alarm (16) is mounted on the top of the cabinet (1); and a controller (17) is mounted on the outer wall of the cabinet (1).

2. An explosion-proof high-voltage power distribution cabinet according to claim 1, characterized in that: A control switch is installed on the cabinet door (2), the control switch is connected to a controller (17) via a wire, and the output end of the controller (17) is connected to an electric push rod (3) via a wire.

3. An explosion-proof high-voltage power distribution cabinet according to claim 1, characterized in that: A support frame (18) is installed at the bottom of the cabinet (1), the bottom end of the support frame (18) is flush with the bottom end of the universal wheel (8), and the top end of the support rod (6) is fixedly connected to a limiting plate.

4. An explosion-proof high-voltage power distribution cabinet according to claim 1, characterized in that: Two arc-shaped plates (5) are symmetrically welded on the inner surface of the cabinet door (2), and a heat dissipation hole is provided on the outer surface of the cabinet door (2) near the bottom. A plurality of heat dissipation fans (19) are installed on the back side of the cabinet body (1) near the top, and a plurality of through holes (21) are provided at the bottom end of the cabinet door (2).

5. The explosion-proof high-voltage power distribution cabinet according to claim 1, characterized in that: A clamp (20) is installed on the inner wall of the cabinet (1), a porous tube (15) is inserted into the clamp (20), a plurality of air holes are provided at equal intervals on the outer surface of the porous tube (15), and carbon dioxide gas is injected into the pressure storage gas cylinder (12).

6. The explosion-proof high-voltage power distribution cabinet according to claim 1, characterized in that: The output end of the controller (17) is connected to the solenoid valve (13) through a wire, and the input end of the controller (17) is connected to the smoke alarm (16) through a wire.

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