Intelligent modularized low-voltage switch cabinet

Abstract

The invention belongs to the technical field of low-voltage switch cabinets, and discloses an intelligent modular low-voltage switch cabinet which comprises a cabinet body and heat dissipation holes formed in the two sides, a cabinet door is hinged to the front end of the cabinet body, a mounting plate is fixed to the middle of the cabinet body, a control module is mounted at the front end of the mounting plate, a connector bar is fixed to the lower end in the cabinet body, and the connector bar is connected with a wire. A positioning plate is fixed at the bottom of the cabinet body, a first connector lug penetrates through the positioning plate, a trunking is arranged at the lower end of the positioning plate, a sealing box is fixed at the upper end of the trunking, a connector base is arranged in the sealing box, a second connector lug is installed in the connector base, transmission rods penetrate through the two sides of the positioning plate, and fixing blocks are fixed at the lower ends of the transmission rods. According to the intelligent modular low-voltage switch cabinet, by arranging the fire extinguishing detection structure, when a fire breaks out due to the conditions of short circuit, poor contact and the like in the cabinet body, the fire extinguishing structure can be triggered to be started, so that carbon dioxide is sprayed to achieve rapid fire extinguishing, external connection can be cut off while fire extinguishing is conducted, and it is ensured that reburning cannot occur due to the conditions of short circuit and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage switchgear, and particularly to an intelligent modular low-voltage switchgear. Background Technique

[0002] A low-voltage switchgear is an enclosed vertical complete set of equipment assembled by one or more low-voltage switch appliances and associated secondary equipment such as measurement, control, and protection; it is applicable to industries such as power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings, etc., and is used for power transmission, distribution, and power conversion;

[0003] The switchgear controls the on-off of the circuit through the main circuit breaker, the fuse provides overload and short-circuit protection, the current transformer and voltage transformer monitor the current and voltage values, and the relay realizes various protection and control functions according to the measurement results.

[0004] However, when the existing intelligent modular low-voltage switchgear is in use, there are still certain problems:

[0005] Existing is a high and low voltage switchgear with an automatic fire extinguishing function such as Chinese Patent Application No. CN215387159U, including a high and low voltage switchgear, a box body is provided on the high and low voltage switchgear, an alarm box is provided on the box body, the box body has a cavity, an automatic fire extinguishing mechanism is provided in the cavity, the automatic fire extinguishing mechanism includes a fire extinguishing bottle, a fixing plate is provided under the fire extinguishing bottle, symmetric support blocks are provided on both sides of the end of the fixing plate away from the fire extinguishing bottle, a sealing plug is provided in the bottle mouth on one side of the fire extinguishing bottle, a safety pin is provided in the sealing plug, and one end of the safety pin penetrates through the bottle mouth of the fire extinguishing bottle and extends to the outside;

[0006] However, the existing fire extinguishing structure of the switchgear is relatively poor in stability and reliability. Although it can achieve fire extinguishing, usually the fire in the switchgear is due to reasons such as short circuit and poor contact. The root cause is not solved after fire extinguishing, and if not handled in time, re-ignition is likely to occur.

[0007] In view of the above problems, an innovative design is carried out on the basis of the original intelligent modular low-voltage switchgear. Summary of the Invention

[0008] The purpose of the present invention is to provide an intelligent modular low-voltage switchgear to solve the problem that the existing fire extinguishing structure of the switchgear is not reliable enough, and if the cause of the fire cannot be handled in time, re-ignition is likely to occur after fire extinguishing as mentioned in the above background technique.

[0009] To achieve the above purpose, the present invention provides the following technical solution: an intelligent modular low-voltage switchgear, including a cabinet body and heat dissipation holes opened on both sides, a cabinet door is hinged to the front end of the cabinet body, a mounting plate is fixed in the middle of the cabinet body, and a control module is installed at the front end of the mounting plate:

[0010] A wiring terminal is fixed at the lower end inside the cabinet body, and the wiring terminal is connected to a wire. A positioning plate is fixed at the bottom of the cabinet body. A first wiring head penetrates through the positioning plate. A wire groove is arranged at the lower end of the positioning plate. A sealing box is fixed at the upper end of the wire groove. A wiring seat is arranged inside the sealing box, and a second wiring head is installed inside the wiring seat.

[0011] The transmission rods penetrate through both sides of the positioning plate. A fixing block is fixed at the lower end of the transmission rod. A return spring is sleeved outside the transmission rod. A transmission shaft is arranged inside the cabinet body. Transmission connecting rods penetrate through both sides of the transmission shaft. The lower end of the transmission connecting rod is connected to a first transmission rope.

[0012] A storage tank is arranged at the upper end inside the cabinet body. Valves are connected to both ends of the storage tank. A conduction pipe is connected to the lower end of the valve.

[0013] Preferably, the upper end of the sealing box extends to the positioning plate, and the upper end of the sealing box is snap-fitted with the positioning plate. The second wiring head is designed in a "V" shape. The lower end of the first wiring head is snap-fitted with the second wiring head. The second wiring head is made of elastic metal.

[0014] By adopting the above technical solution, the external cable can be directly conducted with the wire through the first wiring head and the second wiring head, the wire is connected to the wiring terminal, and finally further conduction is carried out between the wiring terminal and the control module. Moreover, the first wiring head and the second wiring head can be equivalent to a snap-fastener design, enabling quick connection and disconnection.

[0015] Preferably, a sealing door is hinged to the front end of the wire groove. Sealing plates are fixed at both ends of the wire groove. Sealing grooves are fixed on the inner walls of both sides of the cabinet body, and the sealing grooves are slidably connected with the sealing plates. The left side of the wire groove extends to the outside of the cabinet body, and a wiring conduit is fixed on the left side of the wire groove.

[0016] By adopting the above technical solution, through the sliding fit between the sealing groove and the sealing plate, the movable guiding of the wire groove can be realized. Installing a sealing door at the front end of the wire groove is convenient for connecting the external cable to the second wiring head, improving the operation convenience, and can achieve the sealing protection of the connection point, avoiding the situation of the connection point getting damp, etc.

[0017] Preferably, positioning brackets are fixed on both sides of the positioning plate. The transmission rod penetrates through the middle of the positioning brackets. The transmission rod is slidably connected with the positioning brackets. The upper and lower ends of the return spring are in contact with the positioning brackets and the positioning plate respectively.

[0018] By adopting the above technical solution, through the positioning of the transmission rod by the positioning brackets, the return spring can be used to push the structures such as the transmission rod, the fixing block and the sealing box to move downward, so as to provide power for the separation of the first wiring head and the second wiring head, and it is convenient to quickly cut off the power supply when the movement of the transmission rod is not restricted.

[0019] Preferably, both ends of the transmission shaft are fixedly connected to the inner wall of the cabinet, and both sides of the transmission shaft are rotatably connected to the transmission connecting rod. The lower end of the transmission connecting rod is fixed to the first transmission rope, and the lower end of the first transmission rope is fixedly connected to the upper end of the transmission rod.

[0020] With the above technical solution, by using the first transmission rope, the connection between the transmission rod and the transmission connecting rod can be realized, and the transmission rod can be pulled and positioned by the transmission connecting rod and the first transmission rope. The first transmission rope is made of flame-retardant material and is non-combustible, maintaining stable and reliable transmission.

[0021] Preferably, a positioning shaft is fixed to the front end of the transmission connecting rod, and guide rings are fixed to the upper ends on both sides of the positioning shaft. A limiting pull rope passes through the inside of the guide ring. A positioning seat is fixed to the front end of the mounting plate, and the inner end of the limiting pull rope is fixed to the positioning seat. The inner end of the limiting pull rope extends to the upper end at the rear side of the mounting plate, and a guide ring is connected to the upper end at the rear side of the mounting plate, and the limiting pull rope is connected to the guide ring.

[0022] With the above technical solution, through the cooperation of the guide ring and the limiting pull rope, the rotational limit of the transmission connecting rod can be realized. The positioning seat can position both ends of the limiting pull rope. The limiting pull rope is connected to the transmission connecting rod through the guide ring. The surrounding design of the limiting pull rope realizes the rotational restriction of the transmission connecting rod. When the limiting pull rope is burned and cut off, the rotational restriction of the transmission connecting rod can be released.

[0023] Preferably, torsion springs are sleeved on both ends of the transmission shaft, and both ends of the torsion springs are respectively connected to the transmission connecting rod and the transmission shaft.

[0024] With the above technical solution, through the design of the torsion spring, when the rotation of the transmission connecting rod is not restricted, the transmission connecting rod can be driven to rotate around the transmission shaft.

[0025] Preferably, the valve is a rotary shaft valve, and the liquid outlet end of the valve is conductively connected to the conduction pipe. The lower end of the conduction pipe is connected to a spray head, and the spray heads are distributed in an equidistant array.

[0026] With the above technical solution, the storage tank can store compressed carbon dioxide. When the valve is opened, the compressed carbon dioxide is transported to the conduction pipe and is transported into the cabinet by multiple spray heads.

[0027] Preferably, a pull rod is connected to the shaft end of the valve, and the end of the pull rod is connected to a second transmission rope, and the lower end of the second transmission rope is fixed to the transmission connecting rod.

[0028] With the above technical solution, through the cooperation of the pull rod and the second transmission rope, the connection between the valve and the transmission connecting rod can be realized. When the limiting pull rope is burned and broken, the transmission connecting rod rotates and pulls the second transmission rope and the pull rod to rotate, thereby opening the valve and realizing fire extinguishing in the cabinet.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: The intelligent modular low-voltage switch cabinet is provided with a fire extinguishing detection structure. When a fire breaks out inside the cabinet due to short circuit, poor contact, etc., it can trigger the activation of the fire extinguishing structure, thereby spraying carbon dioxide to achieve rapid fire extinguishing, and can cut off the connection of the external power supply during fire extinguishing to ensure that there will be no re-ignition due to short circuit or other situations.

[0030] 1. To build a rigorous safety protection system, this design innovatively adopts a limit pull rope detection system that surrounds the inside of the cabinet. The limit pull rope not only has a physical limit function. When an open flame appears inside the cabinet, the high temperature of the flame will instantly melt the pull rope, triggering a built-in dual safety protection mechanism: on the one hand, the fire extinguishing device will be immediately activated to release a high-efficiency fire extinguishing agent to accurately extinguish the open flame; on the other hand, the intelligent power-off system will quickly cut off the power supply to prevent the spread of fire caused by a short circuit in the circuit. This integrated design can not only respond quickly at the budding stage of the fire, but also minimize the fire risk through the dual protection of fire extinguishing and power-off, building a solid and reliable barrier for the safety of equipment and personnel;

[0031] 2. This safety protection scheme deeply integrates the dual safety mechanisms of fire extinguishing and power-off to build an efficient and rigorous fire prevention and control system. The fire extinguishing structure adopts a fire induction trigger design. When a fire breaks out, it can respond quickly, quickly release a high-efficiency fire extinguishing agent to cover the fire source, isolate oxygen and reduce the temperature, accurately extinguish the initial flames, and block the path of fire spread from the source. At the same time, the power-off structure is linked with the fire extinguishing system to eliminate the potential risk of electric sparks caused by circuit short circuit and poor contact, effectively preventing the secondary re-ignition of the fire, adding a "double insurance" to the safety protection, and comprehensively protecting the fire safety of the usage scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 is a schematic diagram of the internal structure of the cabinet of the present invention;

[0034] Figure 3 is a schematic diagram of the wiring row and wire structure of the present invention;

[0035] Figure 4 is a schematic diagram of the structure of the first wiring head and the second wiring head of the present invention;

[0036] Figure 5 is a schematic diagram of the wire groove and sealed box structure of the present invention;

[0037] Figure 6 is a schematic diagram of the structure of the sealing plate and sealing groove of the present invention;

[0038] Figure 7 is a schematic diagram of the structure of the transmission connecting rod and positioning shaft of the present invention;

[0039] Figure 8 Structural schematic diagram of the valve and storage tank of the present invention;

[0040] Figure 9 Structural schematic diagram of the valve and conduction pipe of the present invention;

[0041] Figure 10 Structural schematic diagram of the transmission connecting rod and positioning shaft of the present invention.

[0042] In the figure: 1, cabinet body; 2, heat dissipation holes; 3, cabinet door; 4, mounting plate; 5, control module; 6, wiring row; 7, wire; 8, positioning plate; 9, first wiring head; 10, wire groove; 11, sealed box; 12, wiring seat; 13, second wiring head; 14, wiring conduit; 15, sealing plate; 16, sealing groove; 17, positioning bracket; 18, transmission rod; 19, return spring; 20, fixing block; 21, transmission shaft; 22, transmission connecting rod; 23, positioning shaft; 24, first transmission rope; 25, torsion spring; 26, guiding ring; 27, limiting pull rope; 28, positioning seat; 29, storage tank; 30, valve; 31, conduction pipe; 32, pull rod; 33, second transmission rope. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0044] Please refer to Figures 1-10, the present invention provides a technical solution: an intelligent modular low-voltage switchgear cabinet, which includes a cabinet body 1 and heat dissipation holes 2 opened on both sides. A cabinet door 3 is hinged to the front end of the cabinet body 1. An installation plate 4 is fixed in the middle of the cabinet body 1. A control module 5 is installed at the front end of the installation plate 4. A wiring row 6 is fixed at the lower end inside the cabinet body 1, and a wire 7 is connected to the wiring row 6. A positioning plate 8 is fixed at the bottom of the cabinet body 1. A first wiring head 9 penetrates through the positioning plate 8. A wire groove 10 is arranged at the lower end of the positioning plate 8. A sealing box 11 is fixed at the upper end of the wire groove 10. A wiring seat 12 is arranged inside the sealing box 11, and a second wiring head 13 is installed inside the wiring seat 12; the upper end of the sealing box 11 extends to the positioning plate 8, and the upper end of the sealing box 11 is snap-connected to the positioning plate 8. The second wiring head 13 is designed in a "V" shape, and the lower end of the first wiring head 9 is snap-connected to the second wiring head 13, and the second wiring head 13 is made of elastic metal; the heat dissipation holes 2 are installed on both sides of the cabinet body 1, the cabinet door 3 is hinged to the front end of the cabinet body 1, the installation plate 4 is fixed in the middle of the cabinet body 1, the control module 5 is installed at the front end of the installation plate 4. The control module 5 mainly includes circuit breakers such as air circuit breakers, molded case circuit breakers, load switches, and devices such as relays and meters. The wiring row 6 is fixed at the lower end inside the cabinet body 1 and is connected to the wire 7. The positioning plate 8 is fixed at the bottom of the cabinet body 1 to divide the upper and lower parts of the connection terminal.

[0045] A sealing door is hinged to the front end of the wire groove 10. Sealing plates 15 are fixed at both ends of the wire groove 10. Sealing grooves 16 are fixed on the inner walls of both sides of the cabinet body 1, and the sealing grooves 16 are slidably connected to the sealing plates 15. The left side of the wire groove 10 extends to the outside of the cabinet body 1, and a wiring conduit 14 is fixed to the left side of the wire groove 10; when in use, an external cable is inserted into the wire groove 10. The external cable is connected to the left end of the wire groove 10 by using the wiring conduit 14 to keep the connection end sealed. After the external cable extends into the wire groove 10, it is bolted to the lower end of the second wiring head 13. And to improve the operation convenience, a sealing door that rotates and opens is arranged in the middle of the wire groove 10. The second wiring head 13 and the first wiring head 9 can be snap-connected to realize the conduction between the external cable and the connecting wire 7. The second wiring head 13 and the sealing box 11 are connected through the wiring seat 12, and the upper end of the sealing box 11 is snap-connected to the positioning plate 8 to achieve sealing, and the sealing box 11 and the positioning plate 8 can be slidably connected.

[0046] Inside the cabinet body 1, a transmission shaft 21 is provided. On both sides of the transmission shaft 21, transmission connecting rods 22 penetrate through. At the lower end of the transmission connecting rod 22, a first transmission rope 24 is connected. Both ends of the transmission shaft 21 are fixedly connected to the inner wall of the cabinet body 1, and both sides of the transmission shaft 21 are rotatably connected to the transmission connecting rods 22. A positioning shaft 23 is fixed at the front end of the transmission connecting rod 22. At the upper ends on both sides of the positioning shaft 23, a guide ring 26 is fixed. A limiting pull rope 27 penetrates through the inside of the guide ring 26. A positioning seat 28 is fixed at the front end of the mounting plate 4. The inner end of the limiting pull rope 27 is fixedly connected to the positioning seat 28. The inner end of the limiting pull rope 27 extends to the upper rear side of the mounting plate 4. At the upper rear side of the mounting plate 4, a guide ring is connected, and the limiting pull rope 27 is connected to the guide ring. The transmission connecting rod 22 can be connected by the transmission shaft 21. The transmission connecting rod 22 can rotate around the transmission shaft 21. Both ends of the transmission connecting rod 22 are connected with guide rings 26. The limiting pull rope 27 can be inserted into the inside of the guide ring 26, and both ends of the limiting pull rope 27 are connected and fixed to the middle of the mounting plate 4 with the positioning seat 28. The two sides of the limiting pull rope 27 extend to the upper rear side of the mounting plate 4. At the rotating shaft of the limiting pull rope 27, it can be connected to the mounting plate 4 by the guide ring, so as to ensure smooth movement after disconnection. The cooperation between the limiting pull rope 27 and the guide ring 26 can pull the transmission connecting rod 22 from the upper end to limit its downward rotation. If there is an open fire inside the cabinet body 1, the limiting pull rope 27 will be burned and broken, thereby releasing the restriction on the downward rotation of the transmission connecting rod 22. And the limiting pull rope 27 covers multiple positions, and can realize the detection of open fire at multiple positions.

[0047] On both sides of the positioning plate 8, the transmission rod 18 penetrates through. At the lower end of the transmission rod 18, a fixed block 20 is fixed. An outer sleeve of the transmission rod 18 is provided with a return spring 19. On both sides of the positioning plate 8, a positioning frame 17 is fixed. The transmission rod 18 penetrates through the middle of the positioning frame 17, and the transmission rod 18 is slidably connected to the positioning frame 17. The upper and lower ends of the return spring 19 are respectively in contact with the positioning frame 17 and the positioning plate 8. The lower end of the transmission connecting rod 22 is fixedly connected to the first transmission rope 24, and the lower end of the first transmission rope 24 is fixedly connected to the upper end of the transmission rod 18. The transmission rod 18 penetrates through both ends of the positioning plate 8. By using the cooperation of the transmission rod 18 and the fixed block 20, the positioning of the sealed box 11 and the second connection head 13 can be realized. By using the cooperation of the transmission connecting rod 22 and the first transmission rope 24, the transmission rod 18 can be pulled upward to prevent it from moving downward, so as to maintain the stable and reliable engagement of the first connection head 9 and the second connection head 13. When the limiting pull rope 27 is disconnected, the transmission connecting rod 22 and the positioning shaft 23 rotate downward. The return spring 19 is used to push the transmission rod 18, the fixed block 20, and the sealed box 11 to move downward, thereby releasing the engagement between the first connection head 9 and the second connection head 13, realizing rapid power-off, and avoiding the subsequent secondary reignition caused by short circuit or poor contact again.

[0048] The limiting pull rope 27 is connected to the positioning shaft 23 by means of a guide ring 26. The distance between the guide ring 26 and the transmission shaft 21 is greater than the distance between the first transmission rope 24 and the transmission shaft 21. It can maintain the stability of pulling and positioning the upper end of the first transmission rope 24 with a smaller pulling force, and a thinner rope diameter can be designed to improve the response speed of the first transmission rope 24 when it is burned by an open flame. Moreover, the first transmission rope 24 and the second transmission rope 33 are made of flame-retardant materials, preferably steel ropes with a diameter of 3 mm, to avoid being burned by an open flame. The limiting pull rope 27 is a hemp rope. Hemp fibers have a certain heat resistance, but they are also easy to burn under the direct action of a flame. The diameter of the hemp rope is 2 - 3 mm. The flame is relatively mild when the hemp fibers burn, and it is usually difficult to maintain continuous combustion after the fire source is removed, thus avoiding expanding the combustion range inside the cabinet 1.

[0049] At the upper end inside the cabinet 1, there is a storage tank 29. Both ends of the storage tank 29 are connected to valves 30, and the lower ends of the valves 30 are connected to a conduction pipe 31. Both ends of the transmission shaft 21 are sleeved with torsion springs 25, and both ends of the torsion springs 25 are respectively connected to the transmission link 22 and the transmission shaft 21. The valve 30 is a rotary shaft valve 30, and the liquid outlet end of the valve 30 is conductively connected to the conduction pipe 31. The lower end of the conduction pipe 31 is connected with spray nozzles, and the spray nozzles are distributed in an equidistant array. The shaft end of the valve 30 is connected with a pull rod 32, and the end of the pull rod 32 is connected with a second transmission rope 33. And the lower end of the second transmission rope 33 is fixed to the transmission link 22. Through the storage tank 29, the compressed storage of carbon dioxide can be realized. The valves 30 at both ends of the storage tank 29 are connected to the transmission link 22 by means of the pull rod 32 and the second transmission rope 33. When the limiting pull rope 27 burns out, the restriction on the downward rotation of the transmission link 22 is released. The torsion spring 25 can drive the transmission link 22 to rotate downward and pull the valves 30 and 32 to rotate and open. The angles of the valves 30 and the pull rod 32 are 0 - 30°. And the carbon dioxide or the stored aerosol inside the storage tank 29 is transported to the conduction pipe 31 and sprayed out by multiple groups of spray nozzles opened at the lower end, so as to achieve a reliable and effective fire extinguishing effect after a fire breaks out. Both the torsion spring 25 and the return spring 19 can provide the power for the downward rotation of the transmission link 22 after the limiting pull rope 27 burns out, ensuring that the valve 30 can rotate and open smoothly and has sufficient power. And the pull rod 32 can further increase the pulling force generated by the second transmission rope 33, further ensuring that there is sufficient pulling force when the transmission link 22 rotates.

[0050] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. 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 intelligent modular low-voltage switchgear cabinet, including a cabinet body (1) and heat dissipation holes (2) opened on both sides. A cabinet door (3) is hinged to the front end of the cabinet body (1). An installation plate (4) is fixed in the middle of the cabinet body (1). A control module (5) is installed at the front end of the installation plate (4). It is characterized in that: A wiring row (6) is fixed at the lower end inside the cabinet body (1), and the wiring row (6) is connected with a wire (7). A positioning plate (8) is fixed at the bottom of the cabinet body (1). A first wiring head (9) penetrates through the positioning plate (8). A wire groove (10) is arranged at the lower end of the positioning plate (8). A sealing box (11) is fixed at the upper end of the wire groove (10). A wiring seat (12) is arranged inside the sealing box (11), and a second wiring head (13) is installed inside the wiring seat (12); The driving rods (18) penetrate through both sides of the positioning plate (8). A fixed block (20) is fixed at the lower end of the driving rod (18), and a return spring (19) is sleeved outside the driving rod (18). A transmission shaft (21) is arranged inside the cabinet body (1), and driving connecting rods (22) penetrate through both sides of the transmission shaft (21). The lower end of the driving connecting rod (22) is connected with a first transmission rope (24); A storage tank (29) is arranged at the upper end inside the cabinet body (1). Both ends of the storage tank (29) are connected with valves (30), and a conduction pipe (31) is connected to the lower end of the valve (30).

2. The intelligent modular low-voltage switchgear according to claim 1, characterized in that: The upper end of the sealing box (11) extends to the positioning plate (8), and the upper end of the sealing box (11) is snap-fitted with the positioning plate (8). The second wiring head (13) is designed in a "V" shape, and the lower end of the first wiring head (9) is snap-fitted with the second wiring head (13). The second wiring head (13) is made of elastic metal.

3. The intelligent modular low-voltage switchgear according to claim 2, characterized in that: A sealing door is hinged to the front end of the wire groove (10). Sealing plates (15) are fixed at both ends of the wire groove (10). Sealing grooves (16) are fixed on the inner walls of both sides of the cabinet body (1), and the sealing grooves (16) are slidably connected with the sealing plates (15). The left side of the wire groove (10) extends to the outside of the cabinet body (1), and a wiring conduit (14) is fixed on the left side of the wire groove (10).

4. An intelligent modular low-voltage switchgear according to claim 1, characterized in that: Positioning frames (17) are fixed on both sides of the positioning plate (8), and the driving rod (18) penetrates through the middle of the positioning frame (17). The driving rod (18) is slidably connected with the positioning frame (17). The upper and lower ends of the return spring (19) are respectively in contact with the positioning frame (17) and the positioning plate (8).

5. An intelligent modular low-voltage switchgear according to claim 4, characterized in that: Both ends of the transmission shaft (21) are fixedly connected with the inner wall of the cabinet body (1), and both sides of the transmission shaft (21) are rotatably connected with the driving connecting rods (22). The lower end of the driving connecting rod (22) is fixed with the first transmission rope (24), and the lower end of the first transmission rope (24) is fixedly connected with the upper end of the driving rod (18).

6. The intelligent modular low-voltage switchgear according to claim 5, wherein: A positioning shaft (23) is fixed to the front end of the transmission connecting rod (22), and guide rings (26) are fixed to the upper ends on both sides of the positioning shaft (23). A limiting pull rope (27) passes through the inside of the guide rings (26). A positioning seat (28) is fixed to the front end of the mounting plate (4), and the inner end of the limiting pull rope (27) is fixed to the positioning seat (28). The inner end of the limiting pull rope (27) extends to the upper rear side of the mounting plate (4), and a guide ring is connected to the upper rear side of the mounting plate (4), and the limiting pull rope (27) is connected to the guide ring.

7. An intelligent modular low-voltage switchgear according to claim 6, characterized in that: Torsion springs (25) are sleeved on both ends of the transmission shaft (21), and the two ends of the torsion springs (25) are respectively connected to the transmission connecting rod (22) and the transmission shaft (21).

8. An intelligent modular low-voltage switchgear according to claim 1, characterized in that: The valve (30) is a rotating shaft valve (30), and the liquid outlet end of the valve (30) is conductively connected to the conduction pipe (31). A spray head is connected to the lower end of the conduction pipe (31), and the spray heads are distributed in an equidistant array.

9. An intelligent modular low-voltage switchgear according to claim 8, characterized in that: A pull rod (32) is connected to the shaft end of the valve (30), and a second transmission rope (33) is connected to the end of the pull rod (32), and the lower end of the second transmission rope (33) is fixed to the transmission connecting rod (22).

Images