Box-type substation provided with flood control structure

Abstract

The application relates to the technical field of box-type substations, and discloses a box-type substation provided with a flood control structure, which comprises a box-type substation body, a box door is attached to the box opening of the box-type substation body, a flood control base is fixedly installed at the bottom of the box-type substation body, a drainage control module is fixedly installed at one side of the top of the flood control base, a shell cover is fixedly installed at the back of the box door, a flow guide ring plate is fixedly sleeved outside the shell cover, and a main abutting mechanism and a secondary abutting mechanism are slidably embedded in the box door. The box-type substation provided with the flood control structure adopts double-layer hierarchical sealing cooperation and a time sequence type pressing mechanism, pressure of the sealing structure is balanced, external accumulated water can be effectively blocked from invading the electrical inner cavity of the box under a flood condition, the box-type substation has the functions of water seepage, water flow guiding and water collection and automatic flood control of the base, has a pre-tightening force supplementing structure, and can reduce the risk of loosening of the sealing structure caused by water flow impact on the box door.

Description

Technical Field

[0001] This invention relates to the field of prefabricated substation technology, specifically a prefabricated substation equipped with a flood-proof structure. Background Technology

[0002] Prefabricated substations are widely used in urban power distribution networks, industrial parks, and residential communities. Some are installed in low-lying areas, making them susceptible to flooding during the rainy season. To address these issues, innovative designs for prefabricated substations are urgently needed. However, existing prefabricated substations still have some problems: Most existing prefabricated substations use ordinary single-ring rubber seals for their door seals. This simple sealing method allows water to easily seep into the equipment's interior through gaps during flooding, causing short circuits and burnout of internal components. Furthermore, the accumulated water inside the enclosure reduces electrical insulation performance. Existing systems lack a double-layer, graded sealing structure, making it impossible to collect and channel small amounts of leaked water. The sealing structure also lacks a pressure-recovery mechanism, making it susceptible to loosening under impact and resulting in insufficient reliability for flood protection.

[0003] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing prefabricated substations. Summary of the Invention

[0004] The purpose of this invention is to provide a prefabricated substation with a flood-proof structure to solve the problems mentioned in the background art. In existing prefabricated substations, when floods occur in low-lying areas, water can easily seep into the interior of the substation through the gaps in the door, causing damage to electrical components. Ordinary single-seal structures lack leakage diversion channels, and the sealing structure lacks a power storage compensation mechanism. The sealing structure of the device is easily loosened by impact, and water accumulated in the base cannot be automatically drained. The cabinet is also prone to corrosion and reduced insulation performance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated substation equipped with a flood control structure, comprising: The transformer substation body has a door fitted to its opening, a flood-proof base is fixedly installed at the bottom of the transformer substation body, and a drainage control module is fixedly installed on one side of the top of the flood-proof base. A cover is fixedly installed on the back of the box door, and a flow guide ring plate is fixedly sleeved on the outside of the cover. The box door is internally fitted with a main contact mechanism and a secondary contact mechanism. The outer edges of the main contact mechanism and the secondary contact mechanism are fitted with an annular sealing strip, which is fitted into an annular groove on the inner wall of the transformer body. A drive disc is rotatably embedded in the inner wall of the box door. The drive disc has an inner guide groove and an outer guide groove. The inner guide groove and the outer guide groove are respectively connected to the ends of the auxiliary contact mechanism and the main contact mechanism. A transmission rod is coaxially fixedly installed on the surface of the drive disc. The transmission rod rotatably passes through the front of the box door, and a power storage locking module is sleeved on the outer side of the transmission rod.

[0006] Preferably, a vertical connecting plate is fixedly installed at the outer edge of the box door, and the horizontal cross-section of the connecting plate is "L" shaped. A vertically arranged shaft is fixedly installed through the connecting plate, and the convex shafts at the upper and lower ends of the shaft are rotatably fitted into the mounting grooves on the outer wall of the transformer body. The side of the box door away from the connecting plate is fixed to the transformer body by a door lock. The top of the integrated shell side wall of the transformer body is provided with an oblique ventilation groove and a wire hole, so that the box door can drive the connecting plate to move.

[0007] Preferably, the drainage control module includes a sealed box fixedly installed on the top of the flood control base, and a liquid level sensor and a pump are fixedly installed inside the sealed box. The probe of the liquid level sensor and the suction pipe of the pump are both fixedly connected through the sealed box and the flood control base. The probe of the liquid level sensor and the suction pipe of the pump are arranged inside the cavity of the flood control base. Three reinforcing ribs are arranged in the sealed space of the flood control base to improve the structural strength. The lower port of the drainage pipe is fixedly connected to the upper part of the pump, and the top port of the drainage pipe is inverted "U" shape. The top of the drainage pipe is fixedly installed on the outer wall of the transformer body, and the bottom of the drainage pipe is fixedly connected through the sealed box. The top of the conduit of the sealed box is fixedly connected to the upper part of the side wall of the transformer body, so that the pump can discharge water through the drainage pipe.

[0008] Preferably, a rubber ring is fixedly connected to the surface of the guide ring plate. The guide ring plate presses the rubber ring tightly against the convex ring on the inner wall of the transformer body to form a flow-guiding and sealing structure. A drain pipe is fixedly installed through the bottom of the transformer body and the top of the flood-proof base. The upper end of the drain pipe is located between the two layers of sealed structure formed by the rubber ring and the annular sealing strip to discharge leaked water. The guide ring plate can prevent leaked water from flowing into the device.

[0009] Preferably, the main contact mechanism includes a main guide plate, which is slidably and symmetrically embedded in the back of the door. A main force rod and a drive frame are fixedly connected to both ends of the main guide plate. The drive frame is fitted between the back of the door and the inner wall of the casing. Symmetrically distributed control slots are provided on both sides of the drive frame, and a main thrust rod is fitted inside each control slot. A slanted push plate is fixedly installed at the bottom of the main thrust rod. Both the slanted push plate and the main thrust rod are slidably embedded in the inner wall of the door. A main contact plate is fixedly installed at the end of the slanted push plate away from the main thrust rod. The main contact plate has an "L" shape with equal lengths on both sides, and the angle between the axis of the slanted push plate and the axes of the two sides of the main contact plate is a 45° bisecting angle. The axis of the slanted push plate is perpendicular to the control slots, allowing the main guide plate to drive the drive frame to move.

[0010] Preferably, the secondary abutment mechanism includes secondary guide plates, four of which are evenly distributed inside the door, and secondary force rods and secondary abutment plates are fixedly connected to both ends of the secondary guide plates respectively. The secondary guide plates and secondary force rods are slidably embedded in the inner wall of the door, so that the secondary guide plates can drive the secondary abutment plates to move.

[0011] Preferably, the enclosure door has a rectangular annular storage groove around its perimeter. A main contact plate and a secondary contact plate are slidably fitted inside the annular storage groove, and an annular sealing strip is fixedly installed on the outside of the annular storage groove. The annular sealing strip is made of elastic rubber material. Different end faces of the main contact plates are respectively fitted to the ends of the secondary contact plates. The four secondary contact plates and four main contact plates together form a pressing, sealing, and locking structure for the annular sealing strip. The annular sealing strip is pressed and sealed in the annular groove on the inner wall of the transformer body. The contact surfaces of the secondary contact plates, main contact plates, and annular sealing strip have an arc-shaped structure, allowing the main contact plates and secondary contact plates to move within the annular storage groove of the enclosure door.

[0012] Preferably, the inner side of the drive disk has four equally angled inner guide grooves, and the outer side of the drive disk has two centrally symmetrically distributed outer guide grooves. A secondary force-bearing rod and a primary force-bearing rod are respectively fitted into the inner and outer guide grooves, and the ends of the inner and outer guide grooves have movement clearances for the secondary and primary force-bearing rods, respectively. The axes of the secondary guide plate and the primary guide plate are perpendicular to the axis of the drive disk. Both the inner and outer guide grooves are divided into arc-shaped grooves and inclined grooves. The arc-shaped groove portions of the inner and outer guide grooves are coaxial with the drive disk, and the inclined groove portions of the inner and outer guide grooves are staggered. The initial rotation angle of the inclined groove is smaller than that of the inclined groove of the outer guide groove. The drive disk rotates clockwise from the initial position. In the 0-40° rotation range, only the inclined groove section of the inner guide groove drives the auxiliary force rod to move inward, while only the arc groove of the outer guide groove follows the rotation, and the main force rod remains stationary. When the drive disk rotates to a 40° angle, the auxiliary contact mechanism retracts into place. After the drive disk continues to rotate beyond a 40° angle, the inclined groove section of the outer guide groove contacts the main force rod. At this time, the main contact mechanism retracts in the next step. The inner and outer guide grooves on the drive disk drive the auxiliary force rod and the main force rod to move sequentially, so that the auxiliary force rod can move within the inner guide groove.

[0013] Preferably, the energy-storing locking module includes a sleeve coaxially fitted on the outer side of the end of the transmission rod. Two ends of an energy-storing coil spring are fixedly connected between the end side wall of the transmission rod and the inner wall of the sleeve. The bottom of the sleeve is rotatably fitted against the front of the door. A limiting shell is rotatably fitted onto the outer wall of the sleeve, and the bottom of the limiting shell is fixedly installed on the front of the door. A central rod is coaxially fixedly installed on the top of the inner wall of the sleeve, and the end of the central rod is coaxially rotatably embedded in the end face of the transmission rod. An eccentric rod is vertically fixedly installed at the outer edge of the end face of the transmission rod, and an arm plate is provided on the side of the eccentric rod. The two ends of the arm plate are respectively fixedly installed on the central rod and the inner wall of the sleeve. The energy-storing coil spring independently and continuously outputs elastic preload torque to the transmission rod to compensate for the relaxation of the sealing structure caused by water flow impact, allowing the arm plate to drive the transmission rod to rotate via the eccentric rod.

[0014] Preferably, the power-locking module further includes a grip frame with both ends slidably inserted into the side wall of the sleeve. The movable grip on the grip frame and the fixed grip on the sleeve are arranged facing each other. The side walls of both ends of the grip frame are flush with the side wall of the sleeve. An outer cylinder is fitted into the mounting groove in the middle of the grip frame, and the bottom end of the outer cylinder is coaxially fixedly embedded in the sleeve. A reset rod is slidably inserted into the top of the outer cylinder, and the top end of the reset rod is fixedly installed on the grip frame. A pressure spring is fixedly connected between the bottom convex plate of the reset rod and the bottom of the inner wall of the outer cylinder. Positioning heads are fixedly installed at both ends of the grip frame, and the positioning heads are slidably embedded in the inside of both sides of the sleeve. The top of the inner wall of the limiting shell is fixedly installed with equal-angled limiting holes. The protrusions of the positioning heads are movably inserted into the limiting holes to form a locking structure, so that the grip frame can drive the reset rod to move.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This box-type substation with a flood-proof structure adopts a double-layer graded seal combined with a time-sequential clamping mechanism, which balances the pressure on the sealing structure. Under flood conditions, it can effectively prevent external water from entering the electrical cavity of the box. At the same time, it has the ability to guide and collect seepage water and automatically drain water accumulated at the base. It also has a pre-tightening force supplementation structure, which can reduce the risk of water flow impacting the box door and causing the sealing structure to loosen. The specific details are as follows: 1. Double-layer sealing structure: The outer layer relies on the main and secondary contact mechanisms to jointly squeeze the annular sealing strip to form a primary main seal; the inner layer relies on the guide ring plate to drive the rubber ring to press the convex ring on the inner wall of the transformer body to form a secondary guide seal. A sandwich cavity is formed between the two seals. A small amount of seepage water can be introduced into the flood control base through the discharge pipe to avoid seepage water directly invading the electrical cavity, thereby improving the protection capability under flood conditions. The liquid level sensor monitors the water accumulation inside the flood control base in real time. When the water accumulation reaches the threshold, the pump will automatically start to drain the water out. 2. The timing-driven drive plate, through the staggered inner and outer guide grooves, enables the secondary and main contact mechanisms to extend sequentially. The main and secondary contact plates are spliced ​​end to end, and the arc contact surface uniformly squeezes the annular sealing strip to ensure uniform sealing pressure and stable sealing effect. The energy storage locking module twists the energy storage coil spring to store elastic potential energy when the sleeve is rotated. After locking, the energy storage coil spring can continuously output pre-tightening force, thereby effectively preventing the sealing structure of the device from loosening under the impact of external water flow. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of the present invention; Figure 2 This is a cross-sectional view of the main body of the transformer substation and the drainage control module of the present invention; Figure 3 This is a schematic diagram of the drainage pipe installation structure of the present invention; Figure 4 This is a schematic diagram of the door installation structure of the present invention; Figure 5 This is a schematic diagram of the double-layer sealing structure of the present invention; Figure 6 This is a schematic diagram of the housing mounting structure of the present invention; Figure 7 This is a partial schematic diagram of the hinge position of the cabinet door in this invention; Figure 8 This is a schematic diagram of the overall assembly of the inner door abutment mechanism of the present invention; Figure 9 This is a schematic diagram of the assembly of the drive disk and the housing of the present invention; Figure 10 This is a schematic diagram of the drive frame mounting structure of the present invention; Figure 11 This is a schematic diagram of the drive disc transmission structure of the present invention; Figure 12 This is a schematic diagram of the transmission rod mounting structure of the present invention; Figure 13 This is a schematic diagram of the assembly of the drive disk and the energy storage locking module of the present invention; Figure 14 This is a schematic diagram of the energy-storing coil spring mounting structure of the present invention; Figure 15 This is a schematic diagram of the grip frame mounting structure of the present invention; Figure 16 This is a schematic diagram of the reset rod mounting structure of the present invention; Figure 17 This is a schematic diagram of the arm plate mounting structure of the present invention.

[0017] In the diagram: 1. Transformer body; 2. Box door; 3. Connecting plate; 4. Shaft; 5. Flood-proof base; 6. Liquid level sensor; 7. Sealing box; 8. Pump; 9. Drainage pipe; 10. Housing; 11. Guide ring plate; 12. Rubber ring; 13. Drain pipe; 14. Main contact mechanism; 1401. Main guide plate; 1402. Main force rod; 1403. Drive frame; 1404. Control slot; 1405. Main thrust rod; 1406. Inclined push plate; 1407. Main contact. 15. Plate; 15. Secondary contact mechanism; 1501. Secondary guide plate; 1502. Secondary force-bearing rod; 1503. Secondary contact plate; 16. Annular sealing strip; 17. Drive disc; 18. Inner guide groove; 19. Outer guide groove; 20. Transmission rod; 21. Energy-saving coil spring; 22. Sleeve; 23. Limiting shell; 24. Grip frame; 25. Positioning head; 26. Limiting hole; 27. Reset rod; 28. Outer cylinder; 29. ​​Pressure spring; 30. Center rod; 31. Arm plate; 32. Eccentric rod. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-17 This invention provides a technical solution: a box-type substation equipped with a flood control structure, comprising: The transformer substation body 1 has a door 2 fitted to its opening. A flood-proof base 5 is fixedly installed at the bottom of the transformer substation body 1, and a drainage control module is fixedly installed on one side of the top of the flood-proof base 5. A cover 10 is fixedly installed on the back of the box door 2, and a guide ring plate 11 is fixedly sleeved on the outside of the cover 10. The main contact mechanism 14 and the auxiliary contact mechanism 15 are slidably embedded inside the box door 2. The outer edges of the main contact mechanism 14 and the auxiliary contact mechanism 15 are fitted with an annular sealing strip 16, and the annular sealing strip 16 is fitted into the annular groove on the inner wall of the transformer body 1. A drive disc 17 is rotatably embedded in the inner wall of the door 2. The drive disc 17 has an inner guide groove 18 and an outer guide groove 19. The inner guide groove 18 and the outer guide groove 19 are respectively connected to the ends of the auxiliary contact mechanism 15 and the main contact mechanism 14. A transmission rod 20 is coaxially fixedly installed on the surface of the drive disc 17. The transmission rod 20 is rotatably inserted through the front of the door 2, and a power storage locking module is sleeved on the outer side of the transmission rod 20.

[0020] A rubber ring 12 is fixedly connected to the ring surface of the flow guide plate 11. The flow guide plate 11 presses the rubber ring 12 tightly against the convex ring on the inner wall of the transformer body 1 to form a flow guide and sealing structure. A drain pipe 13 is fixedly installed through the bottom of the transformer body 1 and the top of the flood control base 5. The upper end of the drain pipe 13 is located between the two layers of sealed structure formed by the rubber ring 12 and the annular sealing strip 16 to discharge leaked water. The flow guide plate 11 can block the water flow into the transformer body 1. The water will enter the flood control base 5 through the drain pipe 13. The drainage control module includes a sealing box 7 fixedly installed on the top of the flood control base 5. A liquid level sensor 6 and a pump 8 are fixedly installed in the sealing box 7. The probe of the liquid level sensor 6 and the suction pipe of the pump 8 are both fixedly connected through the sealing box 7 and the flood control base 5. The flood control base 5 is equipped with a level sensor 6 probe and a pump 8 suction pipe inside its cavity. Three reinforcing ribs are installed within the sealed space of the flood control base 5 to improve structural strength. The pump 8 has a fixed connection to the lower port of a drainage pipe 9, the top port of which is inverted "U"-shaped. The top of the drainage pipe 9 is fixedly installed on the outer wall of the transformer substation body 1, and the bottom of the drainage pipe 9 is fixedly connected to a sealing box 7. The top of the conduit in the sealing box 7 is fixedly connected to the upper side wall of the transformer substation body 1. The level sensor 6 detects the water level and outputs a signal through the electrical circuit to control the pump 8 to start. The pump 8 discharges water from the flood control base 5 through the drainage pipe 9. When the water level drops to the low water level reset threshold, the level sensor 6 controls the pump 8 to stop working.

[0021] A vertical connecting plate 3 is fixedly installed on the outer edge of the box door 2, and the horizontal cross section of the connecting plate 3 is "L" shaped. A vertically arranged shaft 4 is fixedly installed through the connecting plate 3, and the convex shafts at the upper and lower ends of the shaft 4 are rotatably fitted into the mounting groove on the outer wall of the transformer body 1. The side of the box door 2 away from the connecting plate 3 is fixed to the transformer body 1 by a door lock. The top of the integrated shell side wall of the transformer body 1 is provided with an oblique ventilation groove and a wire hole. The box door 2 can drive the shaft 4 to move through the connecting plate 3.

[0022] The inner side of the drive disk 17 has four equally angled inner guide grooves 18, and the outer side of the drive disk 17 has two centrally symmetrically distributed outer guide grooves 19. A secondary force-bearing rod 1502 and a primary force-bearing rod 1402 are respectively fitted into the inner guide grooves 18 and the outer guide grooves 19. The ends of the inner guide grooves 18 and the outer guide grooves 19 have clearances for the movement of the secondary force-bearing rod 1502 and the primary force-bearing rod 1402. The axes of the secondary guide plate 1501 and the primary guide plate 1401 are perpendicular to the axis of the drive disk 17. Both are divided into two parts: an arc-shaped groove and an inclined groove. The arc-shaped grooves of the inner guide groove 18 and the outer guide groove 19 are coaxially set with the drive disk 17. The inclined grooves of the inner guide groove 18 and the outer guide groove 19 are staggered. When the lock needs to be released, the drive disk 17 rotates clockwise from the initial position. In the 0-40° rotation range, only the inclined groove section of the inner guide groove 18 drives the auxiliary force rod 1502 to move inward. Only the arc-shaped groove of the outer guide groove 19 follows the rotation, while the main force rod 1402 remains stationary. When the drive disk 17 rotates to a 40° angle, the auxiliary contact mechanism 15 retracts into place.After the drive disc 17 continues to rotate beyond 40°, the inclined section of the outer guide groove 19 contacts the main force-bearing rod 1402. At this point, the main abutment mechanism 14 retracts. The inner guide groove 18 and outer guide groove 19 on the drive disc 17 drive the auxiliary force-bearing rod 1502 and the main force-bearing rod 1402 to move sequentially. This allows the drive disc 17 to drive the auxiliary force-bearing rod 1502 and the main force-bearing rod 1402 to move through the inner guide groove 18 and outer guide groove 19, respectively. At this time, the main guide plate 1401 and the auxiliary guide plate 1501 will move synchronously. The main abutment mechanism 14 includes the main guide plate 1401, which is slidably and symmetrically embedded on the back of the door 2. The main force-bearing rod 1402 and the drive frame 1403 are fixedly connected to both ends of the main guide plate 1401, respectively. The drive frame 1403 is fitted between the back of the door 2 and the inner wall of the housing 10. Symmetrically distributed control slots 1404 are provided on both sides of the drive frame 1403, and a main thrust rod 1405 is fitted inside each control slot 1404. A slanted push plate 1406 is fixedly installed at the bottom of the main thrust rod 1405. Both the slanted push plate 1406 and the main thrust rod 1405 are slidably embedded in the inner wall of the door 2, allowing the drive frame 1403 to move the main thrust rod 1405 via the control slots 1404. The main thrust rod 1405, in turn, moves the slanted push plate 1406. A main contact plate 1407 is fixedly installed at the end of the slanted push plate 1406 away from the main thrust rod 1405. The main contact plate 1407 has an "L" shape with equal lengths on both sides, and the slanted push plate 1406... The angle between the axis of the push plate 1406 and the axes on both sides of the main contact plate 1407 is 45°. The axis of the inclined push plate 1406 is perpendicular to the control groove 1404. At this time, the inclined push plate 1406 will drive the main contact plate 1407 to move synchronously. The secondary contact mechanism 15 includes a secondary guide plate 1501. Four secondary guide plates 1501 are evenly distributed inside the door 2. The two ends of the secondary guide plate 1501 are respectively fixedly connected to the secondary force rod 1502 and the secondary contact plate 1503. The secondary guide plate 1501 and the secondary force rod 1502 are slidably embedded in the inner wall of the door 2. The secondary guide plate 1501 will drive the secondary contact plate 1503 to move. Since the door 2 has a rectangular cross-section annular storage groove around its perimeter, and the inner side of the annular storage groove of the door 2 slides... A main contact plate 1407 and a secondary contact plate 1503 are fitted together, and an annular sealing strip 16 is fixedly installed on the outside of the annular receiving groove of the box door 2. The annular sealing strip 16 is made of elastic rubber material. The two ends of the secondary contact plate 1503 are respectively fitted with the end faces of the main contact plates 1407. The four secondary contact plates 1503 and the four main contact plates 1407 together form a pressing and sealing locking structure for the annular sealing strip 16. The annular sealing strip 16 is pressed and sealed in the annular groove on the inner wall of the transformer body 1. The contact surfaces of the secondary contact plates 1503, the main contact plates 1407 and the annular sealing strip 16 are arc-shaped. At this time, the secondary contact plates 1503 and the main contact plates 1407 can press the annular sealing strip 16 tightly in the annular groove of the transformer body 1.

[0023] The power-locking module also includes a gripping frame 24 with both ends slidably inserted into the side walls of the sleeve 22. The movable grip on the gripping frame 24 and the fixed grip on the sleeve 22 are positioned opposite each other. The side walls at both ends of the gripping frame 24 are flush with the side walls of the sleeve 22. An outer cylinder 28 is fitted into the mounting groove in the middle of the gripping frame 24, and the bottom end of the outer cylinder 28 is coaxially fixedly embedded in the sleeve 22. A reset rod 27 is slidably inserted into the top of the outer cylinder 28, and the top end of the reset rod 27 is fixedly installed on the gripping frame 24. Above, a pressure spring 29 is fixedly connected between the bottom convex plate of the reset rod 27 and the bottom of the inner wall of the outer cylinder 28. Positioning heads 25 are fixedly installed at both ends of the grip 24, and the positioning heads 25 are slidably embedded inside the sides of the sleeve 22. Equally angled limiting holes 26 are fixedly installed on the top of the inner wall of the limiting shell 23. The protrusions of the positioning heads 25 are movably inserted into the limiting holes 26 to form a locking structure, allowing the grip 24 to drive the reset rod 27 to move. The reset rod 27 then applies the pressure spring... When the spring 29 is compressed, the gripping frame 24 will cause the protrusion on the positioning head 25 to disengage from the limiting hole 26. The power-saving locking module includes a sleeve 22 coaxially sleeved on the outer side of the end of the transmission rod 20. The two ends of the power-saving coil spring 21 are fixedly connected between the end side wall of the transmission rod 20 and the inner wall of the sleeve 22. The bottom of the sleeve 22 is rotatably fitted against the front of the door 2. A limiting shell 23 is rotatably fitted onto the outer wall of the sleeve 22, and the bottom of the limiting shell 23 is fixedly installed on the front of the door 2. A central rod 30 is coaxially fixedly installed on the top of the inner wall of the sleeve 22, and the end of the central rod 30 is coaxially rotatably embedded on the end face of the transmission rod 20. An eccentric rod 32 is vertically fixedly installed on the outer edge of the end face of the transmission rod 20, and an arm plate 31 is provided on the side of the eccentric rod 32. The two ends of the arm plate 31 are respectively fixedly installed on the inner wall of the central rod 30 and the sleeve 22. When the grip frame 24 and the sleeve 22 rotate, the sleeve 22 will drive the transmission rod 20 to rotate synchronously through the energy storage coil spring 21.

[0024] Working principle: When using this prefabricated substation equipped with flood protection structure, first refer to... Figures 1-17 The outlet of the drainage pipe 9 inside the device and the inclined ventilation groove and wire hole on the top of the integrated shell side wall of the transformer body 1 are all above the designed flood control level. The box door 2 is hinged to the transformer body 1 through the connecting plate 3 and the shaft 4 to realize the rotation opening and closing of the box door 2. After the box door 2 is closed, the sealing mechanism is driven and locked by the power storage locking module on the front of the box door 2. After the following operations are completed, the device will be in the state shown in the attached figure. During operation, press the grip 24 inward to overcome the elastic force of the pressure spring 29, causing the positioning head 25 to disengage from the limiting hole 26 on the limiting shell 23, releasing the circumferential lock of the sleeve 22. Rotating the sleeve 22 drives the transmission rod 20 and the drive plate 17 inside the box door 2 to rotate. During this process, the grip 24 drives the sleeve 22 to rotate, and the central rod 30 and arm plate 31 inside the sleeve 22 will rotate synchronously. At the same time, the energy storage coil spring 21 is twisted to store energy. The arm plate 31 can also drive the transmission rod 20 to rotate through the eccentric rod 32. During the rotation of the drive plate 17, the inner guide groove 18 and the outer guide groove 19 arranged on it realize the time-sequential transmission. First, the inner guide groove 18 drives the four secondary contact plates 1503 of the secondary contact mechanism 15 to extend outward. Then, the outer guide groove 19 drives the main contact mechanism 14 to move. 1403 is driven by the control groove 1404, the main thrust rod 1405, and the inclined push plate 1406 to drive the two sets of main contact plates 1407 to extend outward. The main contact plates 1407 and the auxiliary contact plates 1503 are spliced ​​together to form a rectangular ring structure, which together squeezes the annular sealing strip 16 outward, pressing the annular sealing strip 16 tightly into the annular groove of the inner wall of the transformer body 1 to form a primary main seal and achieve the effect of uniform pressure locking the entire box door 2. In the above process, the moving distance of the auxiliary guide plate 1501 in the auxiliary contact mechanism 15 is greater than the moving distance of the main guide plate 1401 in the main contact mechanism 14. After the grip 24 is released, the pressure spring 29 drives the reset rod 27 to reset the grip 24. The positioning head 25 is re-inserted into the limit hole 26 to lock the mechanism. The energy storage coil spring 21 continuously outputs pre-tightening force to prevent the external water flow impact from causing the device sealing structure to loosen. The guide ring plate 11 on the outer side of the back cover 10 of the box door 2 drives the rubber ring 12 to press against the inner wall protruding ring of the transformer body 1, forming a secondary guide seal. A sandwich chamber is formed between the secondary guide seal and the primary main seal. The bottom of the sandwich chamber is connected to the drain pipe 13. When a small amount of water seeps into the primary main seal, the seepage is blocked between the two layers of seals and is guided into the cavity of the flood prevention base 5 through the drain pipe 13, preventing water from entering the electrical cavity of the transformer body 1. A liquid level is set in the sealing box 7 at the top of the flood prevention base 5. Sensor 6 and pump 8 are connected via electrical circuits. The liquid level sensor 6 provides control signals to the pump 8. The probe of the liquid level sensor 6 monitors the water level in the cavity of the base in real time. When the water level reaches the set threshold, the liquid level sensor 6 triggers the pump 8 to start. The pump 8 draws out the water inside the flood control base 5 through the suction pipe and discharges it outward through the inverted U-shaped drainage pipe 9. When the water level drops back to the safe level, the pump 8 stops working. The conduit of the sealing box 7 is connected to the upper side wall of the transformer body 1 to protect the electrical circuit. When it is necessary to open the box door 2, press the grip 24 again to release the lock. As can be seen from the above steps, the drive plate 17 can be driven to rotate in the opposite direction through the transmission relationship of the grip 24. The components of the main contact mechanism 14 and the secondary contact mechanism 15 retract into the annular storage groove of the box door 2, releasing the pressure on the annular sealing strip 16. At this time, the box door 2 can be opened normally to carry out maintenance work. The flood prevention base 5 is equipped with reinforcing ribs to improve the overall structural strength of the flood prevention base 5.

[0025] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated substation equipped with a flood control structure, comprising: The transformer substation body (1) is characterized in that: a door (2) is fitted to the opening of the transformer substation body (1), a flood-proof base (5) is fixedly installed at the bottom of the transformer substation body (1), and a drainage control module is fixedly installed on one side of the top of the flood-proof base (5). A cover (10) is fixedly installed on the back of the box door (2), and a flow guide ring plate (11) is fixedly sleeved on the outside of the cover (10). The main contact mechanism (14) and the secondary contact mechanism (15) are slidably embedded inside the box door (2). The outer edges of the main contact mechanism (14) and the secondary contact mechanism (15) are fitted with an annular sealing strip (16), and the annular sealing strip (16) is fitted into the annular groove on the inner wall of the transformer body (1). A drive disc (17) is rotatably embedded on the inner wall of the door (2). The drive disc (17) has an inner guide groove (18) and an outer guide groove (19). The inner guide groove (18) and the outer guide groove (19) are respectively connected to the ends of the auxiliary contact mechanism (15) and the main contact mechanism (14). A transmission rod (20) is coaxially fixed on the surface of the drive disc (17). The transmission rod (20) is rotatably inserted through the front of the door (2). A power storage locking module is sleeved on the outer side of the transmission rod (20).

2. A prefabricated substation with a flood control structure according to claim 1, characterized in that: A vertical connecting plate (3) is fixedly installed at the outer edge of the box door (2), and the horizontal cross section of the connecting plate (3) is "L" shaped. A vertically arranged shaft (4) is fixedly installed on the connecting plate (3), and the convex shafts at the upper and lower ends of the shaft (4) are rotatably fitted into the mounting groove on the outer wall of the transformer body (1). The side of the box door (2) away from the connecting plate (3) is fixed to the transformer body (1) by a door lock. The top of the integrated shell side wall of the transformer body (1) is provided with an oblique ventilation groove and a wire hole.

3. A prefabricated substation with a flood control structure according to claim 1, characterized in that: The drainage control module includes a sealed box (7) fixedly installed on the top of the flood control base (5), and a liquid level sensor (6) and a pump (8) are fixedly installed inside the sealed box (7). The probe of the liquid level sensor (6) and the suction pipe of the pump (8) are fixedly connected to the sealed box (7) and the flood control base (5). The probe of the liquid level sensor (6) and the suction pipe of the pump (8) are provided inside the cavity of the flood control base (5). Three reinforcing ribs are provided in the sealed space of the flood control base (5) to improve the structural strength. The lower port of the drainage pipe (9) is fixedly connected to the upper part of the pump (8), and the top port of the drainage pipe (9) is inverted "U" shape. The top of the drainage pipe (9) is fixedly installed on the outer wall of the transformer body (1), and the bottom of the drainage pipe (9) is fixedly connected to the sealed box (7). The top of the conduit of the sealed box (7) is fixedly connected to the upper part of the side wall of the transformer body (1).

4. A prefabricated substation with a flood control structure according to claim 1, characterized in that: A rubber ring (12) is fixedly connected to the ring surface of the flow guide plate (11). The flow guide plate (11) presses the rubber ring (12) tightly onto the convex ring on the inner wall of the transformer body (1) to form a flow guide sealing structure. A drain pipe (13) is fixedly installed through the bottom of the transformer body (1) and the top of the flood control base (5). The upper end of the drain pipe (13) is located between the two sealed structures formed by the rubber ring (12) and the annular sealing strip (16) to discharge leaked water. A sandwich cavity is formed between the rubber ring (12) and the annular sealing strip (16). The upper end of the drain pipe (13) is arranged at the lowest position of the sandwich cavity. The seepage water flows into the flood control base (5) by gravity through the drain pipe (13).

5. A prefabricated substation with a flood control structure according to claim 1, characterized in that: The main contact mechanism (14) includes a main guide plate (1401), which is slidably and symmetrically embedded on the back of the door (2). The main guide plate (1401) is fixedly connected to a main force rod (1402) and a drive frame (1403) at both ends. The drive frame (1403) is fitted between the back of the door (2) and the inner wall of the shell (10). The drive frame (1403) has symmetrically distributed control slots (1404) on both sides. The control slots (1404) are fitted with a main thrust rod (1405) inside. The bottom end of the main thrust rod (1405) is fixedly installed with an inclined push plate (1406). The inclined push plate (1406) and the main thrust rod (1405) are slidably embedded on the inner wall of the door (2). The axis of the main guide plate (1401) and the axis of the drive disc (17) intersect perpendicularly. The inclined push plate (1406) is fixedly installed with a main contact plate (1407) at the end away from the main thrust rod (1405). The main contact plate (1407) has an "L" shape with equal lengths on both sides. The two sides of the L-shaped main contact plate (1407) are perpendicular to each other. The direction of movement of the inclined push plate (1406) is arranged along the bisector of the 45° angle between the two sides of the L-shaped main contact plate (1407). The axis of the inclined push plate (1406) is perpendicular to the control groove (1404).

6. A prefabricated substation with a flood control structure according to claim 1, characterized in that: The secondary contact mechanism (15) includes a secondary guide plate (1501). Four secondary guide plates (1501) are arranged at equal angles inside the box door (2). The two ends of the secondary guide plate (1501) are respectively fixedly connected to a secondary force rod (1502) and a secondary contact plate (1503). The secondary guide plate (1501) and the secondary force rod (1502) are slidably embedded in the inner wall of the box door (2).

7. A prefabricated substation with a flood control structure according to claim 6, characterized in that: The enclosure door (2) has a rectangular cross-section annular storage groove around its perimeter. A main contact plate (1407) and a secondary contact plate (1503) are slidably fitted inside the annular storage groove of the enclosure door (2). An annular sealing strip (16) is fixedly installed on the outer side of the annular storage groove of the enclosure door (2). The annular sealing strip (16) is made of elastic rubber material. The two ends of the secondary contact plate (1503) are respectively fitted with the end faces of different main contact plates (1407). The four secondary contact plates (1503) and the four main contact plates (1407) together form a pressing, sealing and locking structure of the annular sealing strip (16). The annular sealing strip (16) will be pressed and sealed in the annular groove on the inner wall of the transformer body (1). The contact surface of the secondary contact plate (1503) and the main contact plate (1407) that are fitted with the annular sealing strip (16) has an arc-shaped structure.

8. A prefabricated substation with a flood control structure according to claim 7, characterized in that: The drive disk (17) has four equally angled inner guide grooves (18) on its inner side and two centrally symmetrical outer guide grooves (19) on its outer side. The inner guide grooves (18) and outer guide grooves (19) are respectively fitted with a secondary force rod (1502) and a main force rod (1402). The ends of the inner guide grooves (18) and outer guide grooves (19) are respectively left with a moving gap for the secondary force rod (1502) and the main force rod (1402). The axes of the secondary guide plate (1501) and the main guide plate (1401) are perpendicular to the axis of the drive disk (17). The inner guide grooves (18) and outer guide grooves (19) are both divided into arc grooves and inclined grooves. The arc grooves of the inner guide grooves (18) and outer guide grooves (19) are coaxial with the drive disk (17). The starting angle of the inner guide groove (18) is smaller than that of the outer guide groove (19). The angle range of the inner guide groove (18) is 0-40°, while the angle range of the outer guide groove (19) is 40-70°. At the same time, the length of the inner guide groove (18) is greater than that of the outer guide groove (19), so that the distance that the inner guide groove (18) drives the auxiliary force rod (1502) to move is longer than the distance that the outer guide groove (19) drives the main force rod (1402) to move. The inner guide groove (18) and the outer guide groove (19) on the drive disk (17) drive the auxiliary force rod (1502) and the main force rod (1402) to move sequentially according to the time sequence.

9. A prefabricated substation with a flood control structure according to claim 1, characterized in that: The energy storage locking module includes a sleeve (22) coaxially sleeved on the outer side of the end of the transmission rod (20). The two ends of an energy storage coil spring (21) are fixedly connected between the end side wall of the transmission rod (20) and the inner wall of the sleeve (22). The bottom of the sleeve (22) is rotatably fitted against the front of the door (2). A limiting shell (23) is rotatably fitted onto the outer wall of the sleeve (22), and the bottom of the limiting shell (23) is fixedly installed on the front of the door (2). A central rod (30) is coaxially fixedly installed on the top of the inner wall of the sleeve (20), and the end of the central rod (30) is coaxially rotatably embedded on the end face of the transmission rod (20). An eccentric rod (32) is vertically fixedly installed at the outer edge of the end face of the transmission rod (20), and an arm plate (31) is provided on the side of the eccentric rod (32). The two ends of the arm plate (31) are respectively fixedly installed on the inner wall of the central rod (30) and the sleeve (22), and a gap is reserved between the arm plate (31) and the eccentric rod (32). During the clockwise rotation of the drive disc (17), the sleeve (22) pushes the eccentric rod (32) through the arm plate (31) to achieve hard transmission; during the counterclockwise rotation locking stage of the drive disc (17), the sleeve (22) drives the arm plate (31) to disengage from the eccentric rod (32), and the sleeve (22) outputs pre-tightening anti-loosening torque to the transmission rod (20) through the energy storage coil spring (21).

10. A prefabricated substation with a flood control structure according to claim 9, characterized in that: The power-locking module also includes a grip (24) that is slidably inserted into the side wall of the sleeve (22) at both ends. The movable grip on the grip (24) and the fixed grip on the sleeve (22) are arranged facing each other. The side walls at both ends of the grip (24) are flush with the side wall of the sleeve (22). An outer cylinder (28) is fitted into the mounting groove in the middle of the grip (24), and the bottom end of the outer cylinder (28) is coaxially fixedly embedded in the sleeve (22). A reset rod (27) is slidably inserted into the top of the outer cylinder (28), and the reset rod (27) is slidably inserted into the sleeve (22). The top of the reset rod (27) is fixedly installed on the grip (24), and a pressure spring (29) is fixedly connected between the bottom convex plate of the reset rod (27) and the bottom of the inner wall of the outer cylinder (28). The two ends of the grip (24) are fixedly installed with positioning heads (25), and the positioning heads (25) are slidably embedded in the inside of both sides of the sleeve (22). The top of the inner wall of the limiting shell (23) is fixedly installed with equal-angled limiting holes (26), and the protrusion of the positioning head (25) is movably inserted into the limiting hole (26) to form a locking structure.

Images