Waterproof device of electrical cabinet for water pumping station

Abstract

The invention discloses a waterproof device of an electrical cabinet for a water pumping station, and relates to the technical field of electrical cabinets, and the waterproof device comprises a cabinet body, a cabinet door is rotatably installed on the left side of the cabinet body, electrical equipment is arranged in the cabinet body, a door handle is rotatably installed on the left side of the cabinet door, a sealing device is arranged on the right side of the cabinet door, and a protection device is arranged in the cabinet body. A power-off protection device is arranged in the cabinet body, the sealing device comprises a first sealing strip, a second sealing strip, a fixing rod, a first bevel block, a gear, a sliding rod, a rack, an air inlet pipe and a piston, and the second sealing strip moves to make contact with the first sealing strip for sealing so that water or moisture can be prevented from entering the electrical cabinet from the outside. Water drops, rainwater or other liquid can be effectively prevented from permeating into the cabinet, electrical elements in the cabinet are protected from being damaged by water, and meanwhile short circuit, corrosion, insulation performance reduction and even equipment failure caused by the fact that water intrudes into the electrical cabinet are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical cabinets, and particularly to a waterproof device for an electrical cabinet used in a pump station. Background Art

[0002] The waterproof device for an electrical cabinet used in a pump station is a key facility to ensure the normal operation of electrical equipment in a humid, wet or water-containing environment. By adopting a waterproof design, it can protect electrical equipment from failures or damages caused by moisture intrusion.

[0003] The patent with the patent announcement number CN217064300U relates to the technical field of electrical cabinets. This patent discloses a waterproof device for an electrical cabinet used in a pump station, which includes a cabinet shell and a cover plate. The front side of the cabinet shell is movably connected to the rear side of the cover plate, and a fixed block is fixedly connected to the right side of the cabinet shell. Through the combined use of the cover plate, fixed block, connecting block, docking block, docking groove, storage groove, fixing device, moving hole, pull plate, sealing ring and sealing groove, flipping the cover plate drives the sealing ring to insert into the sealing groove on the front side of the cabinet shell, and then releasing the pull plate, the spring undergoes elastic deformation to drive the two movable plates to move, and the movement of the movable plates drives the clamping blocks to insert into the clamping grooves, thus completing the sealing of the electrical cabinet, solving the problem that there is no waterproof device for the front side of the existing electrical cabinet in the pump station. When the humidity in the pump station is too high, the moisture will enter the cabinet through the gaps on the front side of the electrical cabinet, and the moisture condensing into water droplets in the cabinet may cause the equipment in the electrical cabinet to burn out.

[0004] In the above patent, by flipping the cover plate to drive the sealing ring to insert into the sealing groove on the front side of the cabinet shell, and then releasing the pull plate, the spring undergoes elastic deformation to drive the two movable plates to move, and the movement of the movable plates drives the clamping blocks to insert into the clamping grooves, thus completing the sealing of the electrical cabinet. However, after sealing the electrical cabinet, it may cause the air pressure inside and outside the electrical cabinet to be inconsistent, making it difficult to open the electrical cabinet door when needed. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a waterproof device for an electrical cabinet used in a pump station, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A waterproof device for an electrical cabinet used in a pump station, including a cabinet body, a cabinet door is rotatably installed on the left side of the cabinet body, electrical equipment is arranged inside the cabinet body, a door handle is rotatably installed on the left side of the cabinet door, a sealing device is arranged on the right side of the cabinet door, a protection device is arranged inside the cabinet body, and a power-off protection device is arranged inside the cabinet body; Among them, the sealing device includes a first sealing strip, a second sealing strip, a fixing rod, a first inclined block, a gear, a sliding rod, a rack, an air inlet pipe and a piston. The first sealing strip is fixedly installed on the right side of the cabinet door. The second sealing strip is slidably installed on the inner wall of the cabinet body. The fixing rod is fixedly installed on the circumferential surface of the handle near the first sealing strip. The first inclined block is fixedly installed on the right side of the second sealing strip. The gear is fixedly installed on the circumferential surface of the handle near the first sealing strip. The sliding rod is slidably installed inside the cabinet door. The rack is fixedly installed at the bottom of the sliding rod. The air inlet pipe is fixedly installed inside the cabinet door. The piston is fixedly installed at one end of the sliding rod away from the rack. When the cabinet door moves to close, it drives the first sealing strip to start moving. After the cabinet door is closed, the handle is rotated, so that the handle drives the fixing rod to start rotating. The fixing rod rotates to push the first inclined block to start rotating. The first inclined block rotates to drive the second sealing strip to start moving. The second sealing strip moves and contacts the first sealing strip.

[0007] According to the above technical solution, the surfaces of the fixing rod and the first inclined block that are close to each other are set as inclined surfaces. The gear meshes with the rack. The piston contacts the air inlet pipe. A first spring is arranged between the second sealing strip and the inner wall of the cabinet body. By setting it as an inclined surface, it is ensured that the fixing rod can smoothly push the first inclined block when rotating. By meshing, it is ensured that the gear can smoothly drive the rack to move when rotating. By contacting, it is ensured that the piston can control the intake and exhaust of the air inlet pipe. By setting the first spring, it is ensured that the second sealing strip can achieve self-reset.

[0008] According to the above technical solution, the protection device includes a first push rod, a sliding column, a protection plate and a second inclined block. The first push rod is fixedly installed on the right side of the second sealing strip. The sliding column slidably penetrates the cabinet body. The protection plate is fixedly installed at one end of the sliding column away from the inside of the cabinet body. The second inclined block is fixedly installed at one end of the sliding column away from the protection plate. When the second sealing strip moves, it drives the first push rod to start moving at the same time. The first push rod moves to push the second inclined block to start moving. The second inclined block moves to drive the sliding column to start moving. The sliding column moves to drive the protection plate to start moving.

[0009] According to the above technical solution, the protection device further includes a long rod, two rotating columns, a transmission belt and two clamping plates. The long rod is fixedly installed at one end of the sliding column away from the protection plate. The two rotating columns are rotatably installed at the bottom of the inner wall of the cabinet body. The two rotating columns are connected by a transmission belt. The two clamping plates are fixedly installed on the top of the transmission belt. When the protection plate contracts towards the inside of the cabinet body due to frictional collision, it drives the long rod to start moving at the same time. The long rod moves to push the clamping plate to start moving. The clamping plate moves to drive the transmission belt to start rotating. The transmission belt rotates to drive the other clamping plate to start moving.

[0010] According to the above technical solution, the mutually approaching surfaces of the first push rod and the second inclined plane block are provided as inclined planes. A second spring is provided between the protection plate and the cabinet body. By providing the inclined plane, it is ensured that the first push rod can smoothly push the second inclined plane block when moving. By providing the second spring, it is ensured that the protection plate can achieve self-resetting.

[0011] According to the above technical solution, the power-off protection device includes a base, a brake body, an electric wire, and a brake switch. The base is fixedly installed on the inner wall of the cabinet. The brake body is fixedly installed on the back of the base. The brake body is electrically connected to the electrical equipment through the electric wire. The brake switch is rotatably installed on the back of the brake body. When an accident occurs inside the cabinet, when the electrical equipment may be short-circuited, overloaded, and leaked due to impact, the protection device inside the brake body cuts off the connection between the brake body and the electric wire.

[0012] According to the above technical solution, the power-off protection device further includes an L-shaped rod, an inclined plane rod, an elastic telescopic rod, a third inclined plane block, and a second push rod. The L-shaped rod is fixedly installed at the end of the sliding column away from the protection plate. The inclined plane rod is slidably installed on the inner wall of the cabinet. The elastic telescopic rod is fixedly installed on the back of the base. The second push rod is fixedly installed at the movable end of the elastic telescopic rod. The third inclined plane block is fixedly installed at the end of the second push rod away from the brake switch. When the sliding column moves, it drives the L-shaped rod to start moving. The movement of the L-shaped rod pushes the inclined plane rod to start moving. The movement of the inclined plane rod pushes the third inclined plane block to start moving. The movement of the third inclined plane block drives the second push rod to start moving. The movement of the second push rod pushes the brake switch to rotate, and the brake switch rotates to cut off the connection between the brake body and the electrical equipment.

[0013] According to the above technical solution, an overload protection device, a short-circuit protection device, and a leakage protection device are provided inside the brake body. The brake switch is electrically connected to the brake body. The mutually approaching surfaces of the L-shaped rod and the inclined plane rod are provided as inclined planes. The mutually approaching surfaces of the inclined plane rod and the third inclined plane block are provided as inclined planes. A third spring is provided between the inclined plane rod and the inner wall of the cabinet. By providing the overload protection device, the short-circuit protection device, and the leakage protection device, it is ensured that the brake body can cut off the power supply autonomously when in danger. By the electrical connection, it is ensured that the brake switch can control the state of the brake body. By providing the inclined plane, it is ensured that the L-shaped rod can smoothly push the inclined plane rod when moving. By providing the inclined plane, it is ensured that the inclined plane rod can smoothly push the third inclined plane block when moving. By providing the third spring, it is ensured that the inclined plane rod can achieve self-resetting.

[0014] The present invention provides a waterproof device for an electrical cabinet used in a pump station. It has the following beneficial effects: (1)In this invention, by moving the second sealing strip into contact with the first sealing strip for sealing, moisture or wetness from the outside is prevented from entering the interior of the electrical cabinet. This can effectively avoid water droplets, rainwater, or other liquids from seeping into the cabinet, protecting the electrical components inside the cabinet from water damage. At the same time, it prevents moisture from entering the electrical cabinet, which could cause short circuits, corrosion, a decline in insulation performance, and even equipment failures. Through the design of the piston and the intake pipe, external air is introduced into the interior of the cabinet body to balance the internal and external air pressure differences, reducing the air pressure difference when opening the cabinet door, thereby making it easier to open the cabinet door and preventing the cabinet door from being difficult to open due to inconsistent internal and external air pressures when the cabinet is in a sealed state.

[0015] (2)In this invention, when the cabinet door is closed, the moving guard plate can effectively protect the electrical cabinet from external impacts or scratches, avoiding damage to the cabinet surface or failures of internal components due to external forces. It prevents the electrical cabinet from being damaged or internal components from being damaged due to direct impacts or friction during use. When the guard plate is subjected to friction and collision, it drives the clamping plates on both sides of the electrical equipment to move, effectively clamping the equipment in place, avoiding faults such as poor contact, wire disconnection, or short circuits caused by equipment displacement, ensuring the normal operation of the electrical equipment, and preventing equipment damage or failures.

[0016] (3)In this invention, the protection device inside the brake body cuts off the connection between the brake body and the wire, ensuring that the equipment will not be severely damaged due to overload, short circuit, or electrical shock, preventing long-term damage to the equipment caused by system failures or abnormal conditions, and improving the stability of the overall system. By rotating the brake switch to cut off the connection between the brake body and the electrical equipment, it prevents electrical faults or accidents from causing safety accidents such as electrical fires and electric shocks, protecting the safety of operators and equipment. It ensures that when the power-off protection device fails, the power can still be cut off mechanically to avoid the expansion of faults. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a sectional view of the structure of the cabinet body and the electrical equipment of the present invention; Figure 3 is a sectional view of the structure of the sealing device of the present invention; Figure 4 is a sectional view of the structure of the intake pipe and the piston of the present invention; Figure 5 is a sectional view of the structure of the protection device of the present invention; Figure 6 is a sectional view of the structure of the sliding column and the guard plate of the present invention; Figure 7 is a sectional view of the structure of the power-off protection device of the present invention; Figure 8 is a sectional view of the structure of the brake body and the wire of the present invention.

[0018] In the figure: 1, cabinet body; 2, cabinet door; 3, electrical equipment; 4, door handle; 5, first sealing strip; 6, second sealing strip; 7, fixing rod; 8, first inclined block; 9, gear; 10, sliding rod; 11, rack; 12, intake pipe; 13, piston; 141, first push rod; 142, sliding column; 143, protection plate; 144, second inclined block; 145, long rod; 146, rotating column; 147, transmission belt; 148, clamping plate; 151, base; 152, brake body; 153, electric wire; 154, brake switch; 155, L-shaped rod; 156, inclined rod; 157, elastic telescopic rod; 158, third inclined block; 159, second push rod. Specific implementation manner

[0019] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 8 , an embodiment of the present invention is: a waterproof device for an electrical cabinet used in a pump station, including a cabinet body 1, a cabinet door 2 is rotatably installed on the left side of the cabinet body 1, electrical equipment 3 is arranged inside the cabinet body 1, a door handle 4 is rotatably installed on the left side of the cabinet door 2, and a sealing device is arranged on the right side of the cabinet door 2; Among them, the sealing device includes a first sealing strip 5, a second sealing strip 6, a fixing rod 7, a first inclined block 8, a gear 9, a sliding rod 10, a rack 11, an intake pipe 12 and a piston 13. The first sealing strip 5 is fixedly installed on the right side of the cabinet door 2, the second sealing strip 6 is slidably installed on the inner wall of the cabinet body 1, the fixing rod 7 is fixedly installed on the circumferential surface of the door handle 4 near one end of the first sealing strip 5, the first inclined block 8 is fixedly installed on the right side of the second sealing strip 6, the gear 9 is fixedly installed on the circumferential surface of the door handle 4 near one end of the first sealing strip 5, the sliding rod 10 is slidably installed inside the cabinet door 2, the rack 11 is fixedly installed at the bottom of the sliding rod 10, the intake pipe 12 is fixedly installed inside the cabinet door 2, and the piston 13 is fixedly installed at one end of the sliding rod 10 away from the rack 11. By moving the second sealing strip 6 into contact with the first sealing strip 5 for sealing, it can prevent moisture or humidity from entering the interior of the electrical cabinet from the outside, effectively avoid water droplets, rainwater or other liquids from seeping into the cabinet, protect the electrical components inside the cabinet from water damage, and at the same time prevent moisture from invading the electrical cabinet and causing short circuits, corrosion, deterioration of insulation performance, and even equipment failures.

[0021] One side of the fixed rod 7 close to the inclined plane block 8 is set as an inclined plane. The gear 9 meshes with the rack 11. The piston 13 contacts the air inlet pipe 12. A first spring is arranged between the second sealing strip 6 and the inner wall of the cabinet body 1. By setting it as an inclined plane, it is ensured that the fixed rod 7 can smoothly push the inclined plane block 8 when rotating. By meshing, it is ensured that the gear 9 can smoothly drive the rack 11 to move when rotating. By contacting, it is ensured that the piston 13 can control the air intake and outlet of the air inlet pipe 12. By arranging the first spring, it is ensured that the second sealing strip 6 can achieve self-resetting.

[0022] When this embodiment works: After the electrical equipment 3 is assembled in the electrical cabinet and the inspection is completed, the cabinet body 1 is placed at the designated position and then the cabinet door 2 is closed. The movement of the cabinet door 2 to close drives the first sealing strip 5 to start moving. After the cabinet door 2 is closed, the door handle 4 is rotated, so that the door handle 4 drives the fixed rod 7 to start rotating. The rotation of the fixed rod 7 pushes the inclined plane block 8 to start rotating. The rotation of the inclined plane block 8 drives the second sealing strip 6 to start moving. The movement of the second sealing strip 6 contacts and seals with the first sealing strip 5 to prevent moisture or humidity from entering the interior of the electrical cabinet from the outside, which can effectively avoid water droplets, rainwater or other liquids from seeping into the cabinet, protect the electrical components in the cabinet from water damage, and at the same time prevent moisture from invading the electrical cabinet and causing short circuits, corrosion, and a decrease in insulation performance, and even cause equipment failures; At the same time as the door handle 4 rotates, it drives the gear 9 to start rotating. The rotation of the gear 9 drives the rack 11 to start moving. The movement of the rack 11 drives the slide rod 10 to start moving. The movement of the slide rod 10 drives the piston 13 to start moving. The movement of the piston 13 blocks the air inlet pipe 12 to ensure that no moisture enters the air inlet pipe 12 in a sealed environment. When the cabinet door 2 is opened, the door handle 4 is rotated to drive the gear 9 to start rotating. The rotation of the gear 9 drives the rack 11 to start moving. The movement of the rack 11 drives the slide rod 10 to start moving. The movement of the slide rod 10 drives the piston 13 to start moving. The movement of the piston 13 opens the air inlet pipe 12 to allow air to enter the interior of the cabinet body 1 from the air inlet pipe 12. Through the design of the piston 13 and the air inlet pipe 12, external air is introduced into the interior of the cabinet body 1 to balance the internal and external air pressure differences and reduce the air pressure difference when the cabinet door 2 is opened, so that the cabinet door 2 is easier to open and prevent the cabinet door 2 from being difficult to open due to inconsistent internal and external air pressures when the interior of the cabinet body 1 is in a sealed state.

[0023] Please refer to Figures 1 - 8On the basis of the above embodiment, in another embodiment of the present invention, a protective device is arranged inside the cabinet 1, and a power-off protection device is arranged inside the cabinet 1. The protective device includes a push rod 141, a sliding column 142, a guard plate 143 and a second inclined block 144. The push rod 141 is fixedly installed on the right side of the sealing strip 6, the sliding column 142 slides through the cabinet 1, the guard plate 143 is fixedly installed on the end of the sliding column 142 away from the inside of the cabinet 1, and the second inclined block 144 is fixedly installed on the end of the sliding column 142 away from the guard plate 143. When the cabinet door 2 is closed, the guard plate 143 moves to effectively protect the electrical cabinet from external impact or scratching, avoid damage to the surface of the cabinet 1 or failure of internal components due to external force, and prevent the electrical cabinet from being directly impacted or rubbed during use, resulting in damage to the electrical cabinet or internal components.

[0024] The protective device also includes a long rod 145, two rotating columns 146, a transmission belt 147 and two clamping plates 148. The long rod 145 is fixedly installed on the end of the sliding column 142 away from the guard plate 143. The two rotating columns 146 are rotatably installed at the bottom of the inner wall of the cabinet 1. The two rotating columns 146 are connected by a transmission belt 147. The two clamping plates 148 are fixedly installed on the top of the transmission belt 147. When the guard plate 143 is subjected to friction and collision, the clamping plates 148 on both sides of the electrical equipment 3 are driven to move and clamp the electrical equipment 3 to effectively fix the equipment in place, thereby avoiding poor contact, line shedding or short circuit caused by displacement of the equipment, ensuring the normal operation of the electrical equipment 3, and avoiding equipment damage or failure.

[0025] The side where the push rod 141 and the inclined plane block 2 144 are close to each other is set as an inclined plane, and a spring 2 is set between the guard plate 143 and the cabinet 1. The inclined plane is set to ensure that the push rod 141 can smoothly push the inclined plane block 2 144 when moving, and the spring 2 is set to ensure that the guard plate 143 can achieve self-reset.

[0026] The power-off protection device includes a base 151, a gate body 152, an electric wire 153 and a gate switch 154. The base 151 is fixedly mounted on the inner wall of the cabinet 1, the gate body 152 is fixedly mounted on the back of the base 151, the gate body 152 is electrically connected to the electrical equipment 3 through the electric wire 153, and the gate switch 154 is rotatably mounted on the back of the gate body 152. The connection between the gate body 152 and the electric wire 153 is cut off by the protection device inside the gate body 152, ensuring that the equipment will not be seriously damaged due to overload, short circuit or electrical shock, preventing system failure or abnormal conditions from causing long-term damage to the equipment, and improving the stability of the overall system.

[0027] The power-off protection device further includes an L-shaped rod 155, an inclined plane rod 156, an elastic telescopic rod 157, an inclined plane block III 158, and a push rod II 159. The L-shaped rod 155 is fixedly installed at one end of the sliding column 142 away from the protection plate 143. The inclined plane rod 156 is slidably installed on the inner wall of the cabinet body 1. The elastic telescopic rod 157 is fixedly installed on the back of the base 151. The push rod II 159 is fixedly installed at the movable end of the elastic telescopic rod 157. The inclined plane block III 158 is fixedly installed at one end of the push rod II 159 away from the brake switch 154. By rotating the brake switch 154 to cut off the connection between the brake body 152 and the electrical equipment 3, it can prevent electrical fires, electric shocks and other safety accidents caused by electrical failures or accidents, protect the safety of operators and equipment, and ensure that when the power-off protection device fails, the power can still be cut off mechanically to avoid the expansion of the failure.

[0028] An overload protection device, a short-circuit protection device and a leakage protection device are arranged inside the brake body 152. The brake switch 154 is electrically connected to the brake body 152. The surfaces of the L-shaped rod 155 and the inclined plane rod 156 close to each other are arranged as inclined planes. The surfaces of the inclined plane rod 156 and the inclined plane block III 158 close to each other are arranged as inclined planes. A spring III is arranged between the inclined plane rod 156 and the inner wall of the cabinet body 1. By arranging the overload protection device, the short-circuit protection device and the leakage protection device, it is ensured that the brake body 152 can cut off the power autonomously when a danger occurs. By means of the electrical connection, it is ensured that the brake switch 154 can control the state of the brake body 152. By arranging the inclined planes, it is ensured that the L-shaped rod 155 can smoothly push the inclined plane rod 156 when moving. By arranging the inclined planes, it is ensured that the inclined plane rod 156 can smoothly push the inclined plane block III 158 when moving. By arranging the spring III, it is ensured that the inclined plane rod 156 can achieve self-resetting.

[0029] When this embodiment works: while the sealing strip II 6 moves, it drives the push rod I 141 to start moving. The push rod I 141 moves to push the inclined plane block II 144 to start moving. The inclined plane block II 144 moves to drive the sliding column 142 to start moving. The sliding column 142 moves to drive the protection plate 143 to start moving. When the protection plate 143 moves, it can effectively protect the electrical cabinet from external impacts or scratches when the cabinet door 2 is closed, avoid damage to the surface of the cabinet body 1 or failures of internal components caused by external forces, and prevent the electrical cabinet from being directly impacted or rubbed during use, resulting in damage to the electrical cabinet or internal components; when the protection plate 143 is subjected to frictional collision, it shrinks towards the inside of the cabinet body 1 and at the same time drives the long rod 145 to start moving. The long rod 145 moves to push the clamping plate 148 to start moving. The clamping plate 148 moves to drive the transmission belt 147 to start rotating. The transmission belt 147 rotates to drive the other clamping plate 148 to start moving. When the protection plate 143 is subjected to frictional collision, it drives the clamping plates 148 on both sides of the electrical equipment 3 to move to clamp the electrical equipment 3, effectively fixing the equipment in place, avoiding faults such as poor contact, wire disconnection or short circuit caused by the displacement of the equipment, ensuring the normal operation of the electrical equipment 3, and avoiding the occurrence of equipment damage or faults.

[0030] When an accident occurs inside the cabinet body 1, the electrical equipment 3 may short-circuit, overload, and have its leakage protection device inside the switch body 152 cut off the connection between the switch body 152 and the wire 153 when being impacted, ensuring that the equipment will not be severely damaged due to overload, short circuit, or electrical shock, preventing long-term damage to the equipment caused by system failures or abnormal conditions, and improving the stability of the overall system; if the device inside the switch body 152 is damaged or fails to cut off the power in time, while the sliding column 142 moves, it drives the L-shaped rod 155 to start moving. The movement of the L-shaped rod 155 pushes the inclined plane rod 156 to start moving. The movement of the inclined plane rod 156 pushes the third inclined plane block 158 to start moving. The movement of the third inclined plane block 158 drives the second push rod 159 to start moving. The movement of the second push rod 159 pushes the switch 154 to rotate. The rotation of the switch 154 cuts off the connection between the switch body 152 and the electrical equipment 3, preventing safety accidents such as electrical fires and electric shocks caused by electrical failures or accidents, protecting the safety of operators and equipment, and ensuring that when the power-off protection device fails, the power can still be cut off mechanically to avoid the expansion of the failure.

[0031] 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 principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof device for an electrical cabinet for a water pump station, comprising a cabinet body (1), characterized in that: A cabinet door (2) is rotatably mounted on the left side of the cabinet body (1), an electrical device (3) is arranged inside the cabinet body (1), a door handle (4) is rotatably mounted on the left side of the cabinet door (2), a sealing device is arranged on the right side of the cabinet door (2), a protective device is arranged inside the cabinet body (1), and a power-off protection device is arranged inside the cabinet body (1); The sealing device comprises a sealing strip 1 (5), a sealing strip 2 (6), a fixing rod (7), a bevel block 1 (8), a gear (9), a sliding rod (10), a rack (11), an air inlet pipe (12) and a piston (13), wherein the sealing strip 1 (5) is fixedly mounted on the right side of the cabinet door (2), the sealing strip 2 (6) is slidably mounted on the inner wall of the cabinet body (1), the fixing rod (7) is fixedly mounted on the circumferential surface of the door handle (4) close to one end of the sealing strip 1 (5), the bevel block 1 (8) is fixedly mounted on the right side of the sealing strip 2 (6), the gear (9) is fixedly mounted on the circumferential surface of the door handle (4) close to one end of the sealing strip 1 (5), the sliding rod (10) is slidably mounted inside the cabinet door (2), the rack (11) is fixedly mounted at the bottom of the sliding rod (10), the air inlet pipe (12) is fixedly mounted inside the cabinet door (2), and the piston (13) is fixedly mounted on one end of the sliding rod (10) away from the rack (11).

2. The waterproof device for an electrical cabinet for a water pump station according to claim 1, characterized in that: The surfaces of the fixing rod (7) and the inclined surface block 1 (8) that are close to each other are arranged as inclined surfaces, the gear (9) is meshed with the rack (11), the piston (13) is in contact with the air intake pipe (12), and a spring 1 is arranged between the sealing strip 2 (6) and the inner wall of the cabinet (1).

3. The waterproof device for an electrical cabinet for a water pump station according to claim 2, characterized in that: The protective device comprises a push rod 1 (141), a sliding column (142), a guard plate (143) and a second inclined surface block (144); the push rod 1 (141) is fixedly mounted on the right side of the second sealing strip (6); the sliding column (142) slides through the cabinet (1); the guard plate (143) is fixedly mounted on an end of the sliding column (142) away from the interior of the cabinet (1); and the second inclined surface block (144) is fixedly mounted on an end of the sliding column (142) away from the guard plate (143).

4. The waterproof device for an electrical cabinet for a water pump station according to claim 3, characterized in that: The protective device further comprises a long rod (145), two rotating columns (146), a transmission belt (147) and two clamping plates (148); the long rod (145) is fixedly mounted on one end of the sliding column (142) away from the guard plate (143); the two rotating columns (146) are rotatably mounted on the bottom of the inner wall of the cabinet (1); the two rotating columns (146) are connected by a transmission belt (147); and the two clamping plates (148) are fixedly mounted on the top of the transmission belt (147).

5. The waterproof device for an electrical cabinet for a water pump station according to claim 4, characterized in that: A surface of the push rod 1 (141) and the inclined surface block 2 (144) that is close to each other is arranged as an inclined surface, and a spring 2 is arranged between the guard plate (143) and the cabinet body (1).

6. The waterproof device for an electrical cabinet for a water pump station according to claim 5, characterized in that: The power-off protection device comprises a base (151), a gate body (152), an electric wire (153) and a gate switch (154); the base (151) is fixedly mounted on the inner wall of the cabinet (1); the gate body (152) is fixedly mounted on the back of the base (151); the gate body (152) is electrically connected to the electrical equipment (3) via the electric wire (153); and the gate switch (154) is rotatably mounted on the back of the gate body (152).

7. The waterproof device for an electrical cabinet for a water pump station according to claim 6, characterized in that: The power-off protection device further comprises an L-shaped rod (155), an inclined rod (156), an elastic telescopic rod (157), an inclined block three (158) and a push rod two (159), wherein the L-shaped rod (155) is fixedly mounted on an end of the sliding column (142) away from the guard plate (143), the inclined rod (156) is slidably mounted on the inner wall of the cabinet (1), the elastic telescopic rod (157) is fixedly mounted on the back of the base (151), the push rod two (159) is fixedly mounted on the movable end of the elastic telescopic rod (157), and the inclined block three (158) is fixedly mounted on an end of the push rod two (159) away from the gate switch (154).

8. The waterproof device for an electrical cabinet for a water pump station according to claim 7, characterized in that: An overload protection device, a short circuit protection device and a leakage protection device are arranged inside the gate body (152); the gate switch (154) is electrically connected to the gate body (152); a surface of the L-shaped rod (155) and the inclined rod (156) close to each other is arranged as an inclined surface; a surface of the inclined rod (156) and the inclined block three (158) close to each other is arranged as an inclined surface; and a spring three is arranged between the inclined rod (156) and the inner wall of the cabinet body (1).

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