Power-saving power distribution cabinet for port station

Abstract

The invention discloses a power-saving power distribution cabinet for a port station, and belongs to the technical field of power-saving power distribution cabinets, the power-saving power distribution cabinet comprises a cabinet body installed at the port station, a cabinet door is hinged to the outer side of the cabinet body, heat dissipation holes are formed in the side wall of the cabinet body, and a smoke sensor is installed on the inner side of the cabinet body; a corrosion-resistant reaction bin is fixedly installed on the inner side of the upper end of the cabinet body, storage bins are symmetrically connected to the two sides of the corrosion-resistant reaction bin, a blowing assembly used for conveying carbon dioxide gas is installed on the outer side of the corrosion-resistant reaction bin, and a pressure relief assembly used for relieving pressure is arranged at the top of the cabinet body; and the side wall of the corrosion-resistant reaction bin is also symmetrically provided with mixing assemblies for improving the reaction efficiency of the medicament. According to the power-saving power distribution cabinet for the port station, the heat dissipation holes can be automatically closed when a fire occurs, a large amount of carbon dioxide can be generated through a chemical reaction to extinguish the fire, meanwhile, the carbon dioxide can be assisted to quickly and uniformly act on the fire point, and the use safety of the power-saving power distribution cabinet is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy-saving power distribution cabinets, and specifically to an energy-saving power distribution cabinet for ports and stations. Background Art

[0002] During the operation of ports and stations, a large number of electrical devices are used. In order to achieve power supply and distribution, a large number of power distribution cabinets are required. Since there are a large number of goods in ports and stations, the fire safety of the power distribution cabinets in ports and stations is particularly important.

[0003] The prior art (Chinese patent with application number: 201921095454.6, application date: July 14, 2019) discloses an energy-saving and heat-dissipating high and low voltage complete set of power distribution cabinets, including a cabinet body. A cabinet door is provided at the front of the cabinet body. A hinge is provided between the cabinet door and the cabinet body. The cabinet door is movably connected to the cabinet body through the hinge. A handle is movably installed at the center position on one side of the front of the cabinet door. A base is fixedly installed at the bottom of the cabinet body. A dry powder box is fixedly installed at the top of the cabinet body. A nozzle is fixedly installed at the center position of the bottom of the dry powder box. A glass column is fixedly installed at the nozzle outlet. A heat dissipation hole is opened on one side of the cabinet body. A groove is opened at the center position on one side of the cabinet body. An expansion board is provided inside the groove. A connecting shaft is provided between the top of the expansion board and the groove. The energy-saving and heat-dissipating high and low voltage complete set of power distribution cabinets of the present utility model can play a function of automatically extinguishing fire and suppressing flames, improve safety performance, and secondly, it can also facilitate people to carry the power distribution cabinet and is more convenient to use; The prior art (Chinese patent with application number: 202221758747.X, application date: July 8, 2022) discloses a power distribution cabinet with an automatic fire extinguishing function, belonging to the field of power distribution cabinets. A power distribution cabinet with an automatic fire extinguishing function of the present utility model includes a cabinet body. A cabinet door is provided at the front end of the cabinet body. Rollers are provided below the cabinet body. A fire extinguishing component is provided on the cabinet body. The present utility model solves the problems that when the existing power distribution cabinet catches fire, it cannot automatically extinguish the fire and requires manual fire extinguishing, resulting in great hidden dangers and high risks; when the existing power distribution cabinet extinguishes the fire, it cannot automatically cut off the power supply, and it is easy to cause a short circuit in the line during fire extinguishing. By extinguishing the fire inside the power distribution cabinet, it can effectively extinguish the fire automatically and improve the safety of using the power distribution cabinet. And a fuse is provided inside the power distribution cabinet. Before extinguishing the fire, the high temperature causes the fuse to cut off the power supply, ensuring that there will be no circuit damage during fire extinguishing; Although the existing energy-saving power distribution cabinets can extinguish fires when a fire occurs, they often use a single existing fire extinguishing device for auxiliary use, and it is inconvenient to prevent air from continuously entering the inner side of the cabinet during the fire extinguishing process, resulting in sufficient oxygen on the inner side of the cabinet and making it easy for the fire to further expand, having certain defects in use. Summary of the Invention

[0004] The purpose of the present invention is to provide an energy-saving distribution cabinet for ports and stations, so as to solve the problem raised by the above background technology that although the energy-saving distribution cabinets on the market can extinguish fire when a fire occurs, they are often used as an auxiliary by a single existing fire-fighting equipment, and it is inconvenient to prevent air from continuously entering the inside of the cabinet during the fire-fighting process, which leads to sufficient oxygen inside the cabinet, making it easy for the fire to further expand.

[0005] To achieve the above object, the present invention provides the following technical solutions: a power-saving distribution cabinet for a port station, comprising a cabinet installed in the port station, wherein a cabinet door is hingedly connected to the outside of the cabinet, and a heat dissipation hole is opened on the side wall of the cabinet, and a smoke sensor is installed on the inside of the cabinet; A corrosion-resistant reaction bin is fixedly installed on the inner side of the upper end of the cabinet, and storage bins are symmetrically connected to the two sides of the corrosion-resistant reaction bin, a motor is fixedly installed on the top of the cabinet, and a screw is fixedly installed on the output end of the motor, and a movable plate is connected to the outer side of the screw, and a film-breaking thorn is fixedly installed on the lower end of the movable plate, and a sealing component for sealing the heat dissipation holes is provided on the inner wall of the cabinet, a blowing component for conveying carbon dioxide gas is installed on the outer side of the corrosion-resistant reaction bin, and a pressure relief component for pressure relief is provided on the top of the cabinet, and a mixing component for improving the reaction efficiency of the agent is also symmetrically provided on the side walls of the corrosion-resistant reaction bin.

[0006] Preferably, the screw rod and the movable plate are threadedly connected, and the movable plate is attached to the upper inner wall of the corrosion-resistant reaction chamber, and the motor drives the movable plate to be raised and lowered through the screw rod. At the same time, a liquid storage bag is placed on the inner side of the corrosion-resistant reaction chamber, and water is stored in the liquid storage bag, and the liquid storage bag is punctured by the membrane-breaking thorns during the downward movement of the movable plate.

[0007] Preferably, a discharge hole is provided between the storage bin and the corrosion-resistant reaction bin, and through holes are provided on both sides of the movable plate, and the through holes and the discharge holes are gradually connected and overlapped during the downward movement of the movable plate, and sodium bicarbonate and aluminum sulfate solid powders are respectively stored in the two storage bins.

[0008] Preferably, the blocking assembly includes a fixing frame fixedly installed on the inner side of the cabinet, and the inner side of the fixing frame is connected to a sealing baffle by elastic lifting through a first spring, and connecting holes are evenly opened on the sealing baffle, and at the same time, a first pull rope is connected between the movable plate and the top of the sealing baffle, and the sealing baffle is pulled up by the first pull rope during the downward movement of the movable plate, and the heat dissipation holes and the connecting holes are misaligned during the upward movement of the sealing baffle to achieve blocking of the heat dissipation holes.

[0009] Preferably, the blowing assembly includes a spray pipe elastically rotatably installed below the corrosion-resistant reaction chamber, and nozzles are evenly arranged on the spray pipe, and the spray pipe and the corrosion-resistant reaction chamber are connected by an air supply pipe, and the air inlet end of the air supply pipe is higher than the liquid level in the corrosion-resistant reaction chamber.

[0010] Preferably, the pressure relief component includes an air hole opened at the top of the cabinet body, and a sealing plug is elastically connected in the air hole through a second spring. The sealing plug is arranged in a frustum shape, and the sealing plug blocks the air hole at the top of the cabinet body.

[0011] Preferably, the mixing component includes a liquid extraction cylinder fixedly installed on the side wall of the corrosion-resistant reaction chamber. A pull rod is telescopically installed inside the liquid extraction cylinder. One end of the pull rod located inside the liquid extraction cylinder is fixedly installed with a piston sheet, and the piston sheet is in interference sliding connection with the liquid extraction cylinder. A second pull rope is connected between the end of the pull rod located outside the liquid extraction cylinder and the lower end of the sealing plug.

[0012] Preferably, the mixing component further includes a fixing ring fixedly installed on the outside of the liquid extraction cylinder. A ball is embedded inside the fixing ring. A stirring rod is rotatably installed on the outside of the piston sheet. A spiral rolling groove is opened on the outer wall of the stirring rod, and the ball rolls along the rolling groove to drive the stirring rod to rotate.

[0013] Preferably, a wire winding wheel is fixedly installed on the outer side of the rotating shaft part of the spray pipe. A third pull rope is wound and connected on the outside of the wire winding wheel, and the upper end of the third pull rope is fixedly connected to the end of the pull rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The power-saving power distribution cabinet for port stations can automatically close the heat dissipation holes when a fire occurs, and can generate a large amount of carbon dioxide through a chemical reaction for fire extinguishing. At the same time, it can assist the carbon dioxide to act on the fire point quickly and evenly, effectively improving the use safety of the power-saving power distribution cabinet. The specific content is as follows; 1. The cabinet body and the heat dissipation holes are provided. Through the heat dissipation holes, the air flow inside the cabinet body can be effectively improved, promoting the heat dissipation inside the cabinet body, avoiding the electrical components from working in a high-temperature environment, improving the working efficiency of the components, and realizing effective power saving; 2. The sealing shutter is provided. When a fire is detected, the control motor drives the lead screw to drive the movable plate to move downward, so that the movable plate can pull the sealing shutter to adjust the lifting through the first pull rope, so that the connecting holes on the sealing shutter are staggered from the heat dissipation holes, realizing the automatic blocking of the heat dissipation holes, and avoiding the outside oxygen from entering the inside of the cabinet body to intensify the fire; 3. The corrosion-resistant reaction chamber, the storage chamber and the spray pipe are provided. When the chemicals in the storage chamber fall into the corrosion-resistant reaction chamber for reaction and generate a large amount of carbon dioxide, the carbon dioxide will enter the spray pipe through the gas transmission pipe, and the spray pipe will rotate reciprocally when the sealing plug relieves pressure, so that the carbon dioxide generated by the reaction can be evenly transported to the inside of the cabinet body, thus realizing efficient automatic fire extinguishing; 4. A liquid extraction cylinder and a stirring rod are provided. As the sealing plug moves, it can pull the pull rod through the second pull rope to move, so that the piston piece reciprocates inside the liquid extraction cylinder, enabling the liquid extraction cylinder to extract and discharge the solution in the corrosion-resistant reaction chamber, thereby promoting the flow and mixing of the solution in the corrosion-resistant reaction chamber. Moreover, the piston piece will drive the stirring rod to reciprocate and rotate, further improving the mixing reaction effect of the solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is an installation structural schematic diagram of the corrosion-resistant reaction chamber and the storage chamber of the present invention; Figure 3 It is a sectional structural schematic diagram of the corrosion-resistant reaction chamber and the storage chamber of the present invention; Figure 4 It is an installation structural schematic diagram of the sealing shutter of the present invention; Figure 5 It is an installation structural schematic diagram of the piston piece of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural schematic diagram at A in; Figure 7 It is a bottom view structural schematic diagram of the movable plate of the present invention; Figure 8 It is a top view structural schematic diagram of the corrosion-resistant reaction chamber and the storage chamber of the present invention.

[0016] In the figure: 1. Cabinet; 2. Cabinet door; 3. Heat dissipation holes; 4. Corrosion-resistant reaction chamber; 5. Storage chamber; 6. Motor; 7. Lead screw; 8. Movable plate; 801. Through hole; 9. First pull rope; 10. Fixed frame; 11. First spring; 12. Sealing shutter; 13. Connecting hole; 14. Film-piercing thorn; 15. Liquid storage bladder; 16. Discharge hole; 17. Spray pipe; 18. Second spring; 19. Sealing plug; 20. Liquid extraction cylinder; 21. Pull rod; 22. Second pull rope; 23. Third pull rope; 24. Piston piece; 25. Fixed ring; 26. Ball; 27. Stirring rod; 28. Rolling groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment 1: When a fire occurs in the existing power-saving distribution cabinet, only a single existing fire extinguishing device can be used for fire extinguishing. It is impossible to prevent oxygen from entering the cabinet, which makes it easy for the fire to re-ignite. In order to solve this technical problem, this embodiment discloses the following technical content, please refer to Figures 1-4 As shown; a power-saving distribution cabinet for a port station, comprising a cabinet body 1 installed in the port station, and a cabinet door 2 is hinged on the outer side of the cabinet body 1, and a heat dissipation hole 3 is opened on the side wall of the cabinet body 1, and a smoke sensor is installed on the inner side of the cabinet body 1; A corrosion-resistant reaction chamber 4 is fixedly installed on the inner side of the upper end of the cabinet 1, and storage chambers 5 are symmetrically connected to both sides of the corrosion-resistant reaction chamber 4. A motor 6 is fixedly installed on the top of the cabinet 1, and a screw rod 7 is fixedly installed on the output end of the motor 6, and a movable plate 8 is connected to the outer side of the screw rod 7. At the same time, a film-breaking thorn 14 is fixedly installed on the lower end of the movable plate 8. A blocking component for blocking the heat dissipation hole 3 is provided on the inner wall of the cabinet 1; The screw rod 7 and the movable plate 8 are threadedly connected, and the movable plate 8 is attached to the upper inner wall of the corrosion-resistant reaction chamber 4, and the motor 6 drives the movable plate 8 to be raised and lowered through the screw rod 7. At the same time, a liquid storage capsule 15 is placed on the inner side of the corrosion-resistant reaction chamber 4, and water is stored in the liquid storage capsule 15, and the liquid storage capsule 15 is pierced by the membrane piercing thorn 14 during the downward movement of the movable plate 8.

[0019] The blocking component includes a fixing frame 10 fixedly installed on the inner side of the cabinet 1, and the inner side of the fixing frame 10 is elastically raised and lowered connected with a sealing baffle 12 through a first spring 11, and connecting holes 13 are evenly opened on the sealing baffle 12. At the same time, a first pull rope 9 is connected between the movable plate 8 and the top of the sealing baffle 12, and the sealing baffle 12 is pulled up by the first pull rope 9 during the downward movement of the movable plate 8. During the upward movement of the sealing baffle 12, the heat dissipation hole 3 and the connecting hole 13 are misaligned to achieve the blocking of the heat dissipation hole 3.

[0020] By adopting the above technical solution, when the smoke sensor detects fire smoke, the control motor 6 drives the screw rod 7, so that the screw rod 7 drives the movable plate 8 to move downward. At this time, the movable plate 8 will pull the sealing baffle 12 on the fixed frame 10 through the first pull rope 9 to elastically lift and lower the sealing baffle 12, so that the connecting holes 13 on the sealing baffle 12 can be staggered with the heat dissipation holes 3. At this time, the sealing baffle 12 can effectively block the heat dissipation holes 3, thereby preventing outside air from continuously entering the inner side of the cabinet 1, thereby isolating oxygen, preventing the fire from rekindling, and improving the safety of use.

[0021] Embodiment 2: The technical content disclosed in this embodiment is a further improvement on the above embodiment 1. Although the existing power-saving distribution cabinet can use carbon dioxide to achieve fire extinguishing operation, it cannot assist carbon dioxide to act evenly on the fire point, so that the fire extinguishing effect is limited. In order to further solve this technical problem, this embodiment discloses the following technical content, such as Figures 1-3and Figures 5-8 As shown in Figures 5-8 ; a blowing assembly for conveying carbon dioxide gas is installed outside the corrosion-resistant reaction chamber 4, a pressure relief assembly for relieving pressure is provided at the top of the cabinet body 1, and mixing assemblies for improving the reaction efficiency of the medicament are symmetrically arranged on the side walls of the corrosion-resistant reaction chamber 4.

[0022] An emission hole 16 is formed between the storage bin 5 and the corrosion-resistant reaction chamber 4, through holes 801 are respectively formed on both sides of the movable plate 8, and during the downward movement of the movable plate 8, the through holes 801 and the emission hole 16 are gradually communicated and overlapped. At the same time, solid powders of sodium bicarbonate and aluminum sulfate are respectively stored in the two storage bins 5.

[0023] The blowing assembly includes a spray pipe 17 elastically and rotatably installed below the corrosion-resistant reaction chamber 4. Nozzles are uniformly arranged on the spray pipe 17. The spray pipe 17 is connected to the corrosion-resistant reaction chamber 4 through an air delivery pipe. At the same time, the intake end of the air delivery pipe is higher than the liquid level in the corrosion-resistant reaction chamber 4.

[0024] The pressure relief assembly includes an air hole formed in the top of the cabinet body 1. A sealing plug 19 is elastically connected in the air hole through a second spring 18. The sealing plug 19 is arranged in a frustum shape structure. At the same time, the sealing plug 19 plugs the air hole at the top of the cabinet body 1.

[0025] The mixing assembly includes a liquid extraction cylinder 20 fixedly installed on the side wall of the corrosion-resistant reaction chamber 4. A pull rod 21 is telescopically installed inside the liquid extraction cylinder 20. A piston piece 24 is fixedly installed at one end of the pull rod 21 located inside the liquid extraction cylinder 20. At the same time, the piston piece 24 is in interference sliding connection with the liquid extraction cylinder 20. A second pull rope 22 is connected between the end of the pull rod 21 located outside the liquid extraction cylinder 20 and the lower end of the sealing plug 19.

[0026] The mixing assembly further includes a fixing ring 25 fixedly installed outside the liquid extraction cylinder 20. A ball 26 is embedded and installed inside the fixing ring 25. A stirring rod 27 is rotatably installed on the outer side of the piston piece 24. At the same time, spiral rolling grooves 28 are formed on the outer wall of the stirring rod 27. Moreover, the ball 26 rolls along the rolling grooves 28 to drive the stirring rod 27 to rotate.

[0027] A wire winding wheel is fixedly installed on the outer side of the rotating shaft part of the spray pipe 17. A third pull rope 23 is wound and connected on the outer side of the wire winding wheel. The upper end of the third pull rope 23 is fixedly connected to the end of the pull rod 21.

[0028] By adopting the above technical solution, when the movable plate 8 moves downward, the film-breaking thorn 14 provided on its lower surface can gradually approach the liquid storage bag 15 pre-stored inside the corrosion-resistant reaction chamber 4, causing the liquid storage bag 15 to be punctured. As a result, the water inside the liquid storage bag 15 will flow into the inside of the corrosion-resistant reaction chamber 4. At the same time, during the downward movement of the movable plate 8, the through hole 801 on it will gradually communicate with the discharge hole 16, enabling the medicament in the storage chamber 5 to fall into the corrosion-resistant reaction chamber 4 and dissolve and react in the water, thereby absorbing heat and generating a large amount of carbon dioxide. At this time, the carbon dioxide will enter the spray pipe 17 through the air pipe and be evenly blown towards the inside of the cabinet body 1. As the air pressure inside the cabinet body 1 increases, the sealing plug 19 will elastically move upward under the action of the air pressure to achieve automatic air discharge. During the upward movement of the sealing plug 19, it will pull the pull rod 21 through the second pull rope 22, causing the piston piece 24 at the end of the pull rod 21 to slide in the liquid extraction cylinder 20, enabling the liquid extraction cylinder 20 to suck and push the solution, thereby accelerating the flow and mixing of the solution in the corrosion-resistant reaction chamber 4, promoting the reaction. At the same time, when the piston piece 24 moves, it can drive the stirring rod 27 to move synchronously. During the movement of the stirring rod 27, the balls 26 on the fixing ring 25 will roll along the rolling groove 28, causing the stirring rod 27 to rotate, further improving the mixing and reaction effect of the solution. At the same time, when the pull rod 21 moves, it can pull the spray pipe 17 to perform reciprocating elastic rotation through the third pull rope 23, further improving the uniformity of the distribution effect of carbon dioxide and achieving rapid fire extinguishing.

[0029] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A power-saving power distribution cabinet for a port station, comprising a cabinet body (1) installed in the port station, a cabinet door (2) is hinged on the outer side of the cabinet body (1), heat dissipation holes (3) are opened on the side wall of the cabinet body (1), and a smoke sensor is installed inside the cabinet body (1). It is characterized in that An anti-corrosion reaction chamber (4) is fixedly installed on the inner side of the upper end of the cabinet body (1), storage chambers (5) are symmetrically connected to both sides of the anti-corrosion reaction chamber (4), a motor (6) is fixedly installed on the top of the cabinet body (1), a lead screw (7) is fixedly installed at the output end of the motor (6), a movable plate (8) is connected to the outer side of the lead screw (7), a film-breaking thorn (14) is fixedly installed at the lower end of the movable plate (8), a plugging assembly for plugging the heat dissipation holes (3) is arranged on the inner wall of the cabinet body (1), a blowing assembly for conveying carbon dioxide gas is installed on the outer side of the anti-corrosion reaction chamber (4), a pressure relief assembly for pressure relief is arranged on the top of the cabinet body (1), and mixing assemblies for improving the reaction efficiency of the medicine are symmetrically arranged on the side walls of the anti-corrosion reaction chamber (4).

2. The power-saving power distribution cabinet for port stations according to claim 1, characterized in that: The lead screw (7) is in threaded connection with the movable plate (8), the movable plate (8) fits on the upper inner wall of the anti-corrosion reaction chamber (4), the motor (6) drives the movable plate (8) to perform lifting adjustment through the lead screw (7), a liquid storage bag (15) is placed inside the anti-corrosion reaction chamber (4), water is stored in the liquid storage bag (15), and the liquid storage bag (15) is punctured by the film-breaking thorn (14) during the downward movement of the movable plate (8).

3. The power-saving power distribution cabinet for port stations according to claim 1, characterized in that: An emission hole (16) is opened between the storage chamber (5) and the anti-corrosion reaction chamber (4), through holes (801) are respectively opened on both sides of the movable plate (8), the through holes (801) and the emission hole (16) are gradually communicated and overlapped during the downward movement of the movable plate (8), and solid powders of sodium bicarbonate and aluminum sulfate are respectively stored in the two storage chambers (5).

4. The power-saving power distribution cabinet for port stations according to claim 1, characterized in that: The plugging assembly includes a fixed frame (10) fixedly installed on the inner side of the cabinet body (1), a sealing shutter (12) is elastically connected to the inner side of the fixed frame (10) through a first spring (11) for lifting, connecting holes (13) are uniformly opened on the sealing shutter (12), a first pull rope (9) is connected between the tops of the movable plate (8) and the sealing shutter (12), the sealing shutter (12) is pulled to move upward through the first pull rope (9) during the downward movement of the movable plate (8), and the heat dissipation holes (3) and the connecting holes (13) are misaligned during the upward movement of the sealing shutter (12) to plug the heat dissipation holes (3).

5. The power-saving power distribution cabinet for port stations according to claim 1, wherein: The blowing assembly includes a spray pipe (17) elastically and rotatably installed below the anti-corrosion reaction chamber (4), nozzles are uniformly arranged on the spray pipe (17), the spray pipe (17) is connected to the anti-corrosion reaction chamber (4) through an air delivery pipe, and the intake end of the air delivery pipe is higher than the liquid level in the anti-corrosion reaction chamber (4).

6. The power-saving power distribution cabinet for ports and stations according to claim 1, characterized in that: The pressure relief component includes an air hole opened at the top of the cabinet body (1), and a sealing plug (19) is elastically connected in the air hole through a second spring (18). The sealing plug (19) is arranged in a frustum shape, and the sealing plug (19) seals the air hole at the top of the cabinet body (1).

7. The power-saving power distribution cabinet for ports and stations according to claim 6, characterized in that: The mixing component includes a liquid extraction cylinder (20) fixedly installed on the side wall of the corrosion-resistant reaction chamber (4). A pull rod (21) is telescopically installed inside the liquid extraction cylinder (20). A piston piece (24) is fixedly installed at one end of the pull rod (21) located inside the liquid extraction cylinder (20). The piston piece (24) is in interference sliding connection with the liquid extraction cylinder (20). A second pull rope (22) is connected between the end of the pull rod (21) located outside the liquid extraction cylinder (20) and the lower end of the sealing plug (19).

8. The power-saving power distribution cabinet for ports and stations according to claim 7, wherein: The mixing component further includes a fixing ring (25) fixedly installed on the outside of the liquid extraction cylinder (20). A ball (26) is embedded and installed inside the fixing ring (25). A stirring rod (27) is rotatably installed on the outside of the piston piece (24). A spiral rolling groove (28) is formed on the outer wall of the stirring rod (27). The ball (26) rolls along the rolling groove (28) to drive the stirring rod (27) to rotate.

9. The power-saving power distribution cabinet for port stations according to claim 5, characterized in that: A wire winding wheel is fixedly installed on the outer side of the rotating shaft part of the spray pipe (17). A third pull rope (23) is wound and connected to the outside of the wire winding wheel. The upper end of the third pull rope (23) is fixedly connected to the end of the pull rod (21).

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