Urban rail transit underground station integrated protection and flood prevention system

Abstract

The invention relates to the technical field of flood-proof systems, in particular to an urban rail transit underground station integrated protection flood-proof system which comprises a floor board, one end of the floor board is connected with a water baffle, and a strip-shaped inserting groove is formed in the floor board; the fixing rod is arranged in a hollow mode, the fixing rod is pre-buried in the soil body, the lower end of the fixing rod is connected with a pre-buried box body, and an inner cavity of the fixing rod communicates with an inner cavity of the pre-buried box body; the locking rods are arranged in the fixing rods in a penetrating mode, the upper ends of the locking rods are vertically connected with pressing rods, the lower ends of the locking rods are connected with balance weight units, the balance weight units are located in the inner cavity of the embedded box body, and the pressing rods penetrate through the strip-shaped inserting grooves and then horizontally rotate to abut against the top wall of the floor board; the device has the advantages that a containing space can be provided for the locking rod and the balance weight unit through the fixing rod and the pre-buried box body, horizontal displacement control and overturning control over the floor can be achieved through cooperation of the locking rod and the pressing rod, then the position stability of the water baffle is guaranteed, and the rainwater interception reliability is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of flood prevention systems, and in particular to an integrated flood prevention system for underground stations of urban rail transit. Background Art

[0002] Urban rail transit refers to public transportation that serves cities or suburbs, using various forms of rail transit transportation systems as carriers. Due to the gradual saturation of ground rail transit, underground rail transit such as subways has begun to be gradually developed. It has the advantages of fast speed, large capacity, and high punctuality. It can effectively alleviate urban traffic congestion and improve urban traffic operation efficiency.

[0003] Due to the low absolute altitude of underground rail transit, when there is heavy rainfall in the surrounding environment, rainwater backflow and flooding are prone to occur inside the underground rail transit, so protection is required. The prior art discloses an underground road tunnel entrance flood prevention and water retaining device, including a first upright rectangular flood prevention and water retaining plate and a second inclined rectangular flood prevention and water retaining plate, the bottom side of the second flood prevention and water retaining plate abuts against the lower part of one side of the first flood prevention and water retaining plate, and the top side is connected to the outer side of the horizontally arranged rectangular connecting top plate to form a V-shaped structure, and a plurality of buffer components arranged in a line are arranged on the plate near the inner side of the connecting top plate at intervals; the buffer component includes a protective circular sleeve, a fixed column and a buffer spring, the bottom of the fixed column is fixed on the top surface of the first flood prevention and water retaining plate, and passes through the through hole of the connecting top plate upwards and extends to the top of the connecting top plate and slides with the through hole; a horizontally arranged disc-shaped mounting plate is provided on the upper part of the fixed column, and the buffer spring is sleeved outside the fixed column and one end is fixed on the connecting top plate, and the other end is fixed on the bottom surface of the mounting plate; the mounting plate is mounted in the protective circular sleeve for sliding fit.

[0004] With regard to the above-mentioned related technologies, before the arrival of rain, the first anti-flooding water retaining plate is placed at the entrance of the passage, and then the impact of the incoming rain is buffered by the second anti-flooding water retaining plate. However, when the rain reaches a certain depth, the lateral thrust on the first anti-flooding water retaining plate will cause the first anti-flooding water retaining plate to become unstable, resulting in horizontal movement or flipping or both, thereby losing the function of intercepting rainwater. Summary of the invention

[0005] In order to improve the position stability of the water retaining plate to ensure the reliability of intercepting rainwater, the present application provides an integrated protection and flood prevention system for underground stations of urban rail transit.

[0006] The integrated flood prevention system for underground urban rail transit stations provided in this application adopts the following technical solutions: An integrated flood prevention system for underground urban rail transit stations, comprising: A plurality of floor panels, one end of each floor panel is connected to a water retaining plate, and each floor panel is provided with a plurality of strip-shaped insertion grooves; A plurality of hollow fixing rods, wherein the fixing rods are pre-buried in the soil, and the lower ends of the fixing rods are connected to the pre-buried box, and the inner cavities of the fixing rods are connected to the inner cavities of the pre-buried box; A plurality of locking rods are provided, wherein the locking rods are passed through the fixing rods, and the upper ends of the locking rods are vertically connected to pressure rods, and the lower ends of the locking rods are connected to counterweight units, and the counterweight units are located in the inner cavity of the embedded box body, and the pressure rods can rotate horizontally after passing through the strip-shaped insertion grooves to abut against the top wall of the floor.

[0007] By adopting the above technical solution, before the rain comes, force is applied to the water retaining plate, and the water retaining plate drives the floor to move until the strip insertion groove opened on the floor is aligned with the pre-installed pressure rod on the passage opening, force is applied to the pressure rod to make it pass through the strip insertion groove, and then the pressure rod is rotated until the pressure rod can overlap the top wall of the floor, and then the force applied to the pressure rod is stopped. Under the action of the counterweight unit, the pressure rod applies vertical downward pressure to the floor, so that a large pressure is maintained between the floor and the ground. When rainwater accumulates step by step and reaches a certain depth, the rainwater will apply lateral force to the water retaining plate. At this time, since the locking rod passes through the strip insertion groove, the floor will not have a large horizontal impact with the passage opening. The relative displacement of the pressure rod, and because the pressure rod is pressed tightly against the floor, and the movement direction of the pressure rod is restricted by the positional relationship between the locking rod and the fixed rod, it can only move upward, so the water retaining plate will not flip over, thereby ensuring the position stability of the floor and the water retaining plate, and ensuring the reliability of intercepting rainwater; the designed urban rail transit underground station integrated protection and flood prevention system can form an interception structure for intercepting water bodies through the cooperation of the floor and the water retaining plate, and the fixed rod and the embedded box can provide accommodating space for the locking rod and the counterweight unit, and the locking rod and the pressure rod can cooperate to realize the horizontal displacement control and flipping control of the floor, thereby ensuring the position stability of the water retaining plate, and ensuring the reliability of intercepting rainwater.

[0008] In a specific possible implementation manner, the counterweight unit includes a counterweight block, the counterweight block is connected to the locking rod, and the counterweight block is located in the inner cavity of the embedded box.

[0009] By adopting the above technical solution, the counterweight unit is designed, which can use gravity to increase the pressure applied by the pressure rod on the top wall of the floor through the counterweight block, thereby ensuring the reliability of the contact between the floor and the ground at the passage opening, thereby reducing the possibility of the water retaining plate flipping over.

[0010] In a specific possible implementation mode, the counterweight block is hollow and has a top wall opening to form a water-containing cavity, a water-entry gap is left when the pressure rod and the fixing rod are in contact, and the fixing rod is located directly above the water-containing cavity.

[0011] By adopting the above technical scheme, the designed counterweight block is hollow and has an opening on the top wall. The water that seeps through the water entry gap is gathered into the water containing chamber and then the water's own weight is used to achieve counterweight. Before the rain comes, the amount of water in the water containing chamber is small, which can reduce the labor intensity of the operator to increase the pressure rod. At the same time, the water entry gap can also be used as an intervention point for the operator to apply force to the pressure rod.

[0012] In a specific possible implementation scheme, an elastic waterproof ring is connected to the inner wall of the embedded box, and when the pressure rod passes through the strip insertion groove and abuts against the top wall of the floor, the top wall of the counterweight block abuts against the elastic waterproof ring.

[0013] By adopting the above technical solution, the designed elastic waterproof ring can make the water-containing cavity and the inner cavity of the fixed rod form an integral water-containing structure when the pressure rod abuts against the top wall of the floor, which is equivalent to increasing the downward gravity applied to the locking rod.

[0014] In a specific feasible implementation scheme, the locking rod is connected to a blocking disk at one end away from the pressure rod, and the blocking disk is located below the counterweight block. The locking rod is rotatably connected to the counterweight block, and the blocking disk slides relative to the counterweight block. A plurality of water outlet holes are provided on the blocking disk, and a plurality of leakage holes are provided on the bottom wall of the counterweight block. After the blocking disk is rotated, the water outlet holes and the leakage holes are connected, and a plurality of leakage holes are provided on the embedded box.

[0015] By adopting the above technical scheme, force is applied to the pressure rod so that the pressure rod passes through the strip insertion groove, and then the pressure rod is rotated so that the pressure rod overlaps the floor. At this time, the water outlet hole on the sealing plate and the leakage hole on the counterweight block are staggered, and the lower part of the water containing chamber is in a closed state. At this time, the water in the water containing chamber applies downward gravity to the locking rod. After the rainwater recedes, the pressure rod is rotated, and the pressure rod drives the sealing rod to rotate through the locking rod, so that the water outlet hole is connected with the leakage hole. The water in the water containing chamber enters the inner cavity of the embedded box through the connected water outlet hole and leakage hole, and finally seeps into the soil through the leakage hole. The designed sealing plate can realize the preservation and release of water in the water containing chamber, thereby reducing the contact time of the locking rod, the counterweight block and the water body, and extending the service life of the counterweight block, the locking rod and the fixing rod.

[0016] In a specific possible implementation manner, the strip-shaped insertion groove is arranged on the floor at one end away from the water retaining plate.

[0017] By adopting the above technical solution, the pressure exerted by the pressure rod on the floor can maintain the maximum torque acting on the water retaining plate, so as to reduce the possibility of the water retaining plate turning over.

[0018] In a specific possible implementation manner, the end of the water retaining plate away from the floor surface is connected to a hanging chain, and the hanging chain is detachably fixedly connected to the pressure rod.

[0019] By adopting the above technical solution, the designed hanging chain can increase the stability of the connection structure between the water retaining plate and the floor. At the same time, after the anti-flooding function is completed, it can be unlocked to realize the convenient storage of the water retaining plate and the floor.

[0020] In a specific possible implementation manner, the strip-shaped insertion groove is arranged on the floor near one end of the water retaining plate.

[0021] By adopting the above technical solution, the position reliability after horizontal displacement against the floor can be improved, and the speed of rainwater penetrating into the water holding cavity through the water inlet gap can also be reduced.

[0022] In a specific possible implementation manner, a plurality of reinforcing ribs are connected between the floor surface and the water retaining plate.

[0023] By adopting the above technical solution, the designed reinforcing ribs can increase the stability of the connection structure between the water retaining plate and the floor.

[0024] In a specific possible implementation mode, two adjacent water retaining plates are spliced ​​together to form a splicing seam, and a U-shaped bar is inserted at the splicing seam, and the U-shaped bar is slidably connected to the water retaining plate.

[0025] By adopting the above technical solution, the designed U-shaped strip can increase the sealing performance of the protective flood prevention system formed by multiple water retaining plates, and reduce the possibility of rainwater leakage through the joints.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The designed integrated protection and flood prevention system for underground urban rail transit stations can form an interception structure for intercepting water bodies by cooperating with the floor and the water retaining plate. The fixed rod and the embedded box can provide accommodation space for the locking rod and the counterweight unit. The locking rod and the pressure rod can cooperate to achieve horizontal displacement control and flip control of the floor, thereby ensuring the position stability of the water retaining plate and the reliability of intercepting rainwater.

[0027] 2. The designed integrated protection and flood prevention system for underground urban rail transit stations uses a counterweight block that is hollow and has an opening on the top wall. The water that seeps through the water gap is gathered into the water-containing cavity and then the water's own weight is used to achieve counterweight. Before the rain comes, the amount of water in the water-containing cavity is small, which can reduce the labor intensity of operators to increase the pressure rod.

[0028] 3. The designed integrated protection and flood prevention system for urban rail transit underground stations can realize the preservation and release of water in the water-containing cavity, thereby reducing the contact time between the locking rod, the counterweight block and the water body, and extending the service life of the counterweight block, the locking rod and the fixing rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the integrated protection and flood prevention system for an urban rail transit underground station according to an embodiment of the present application.

[0030] Figure 2 yes Figure 1 sectional view of .

[0031] Figure 3 is Figure 2 On this basis, a two-dimensional structural schematic diagram of the counterweight unit structure is further disclosed.

[0032] Figure 4 is Figure 3 Schematic diagram of the structure after adding a blocking plate to the foundation.

[0033] Figure 5 yes Figure 4 Schematic diagram of part of the structure.

[0034] Figure 6 It is a schematic diagram of the usage status of the integrated protection and flood prevention system for underground stations of urban rail transit in Example 1 of the present application.

[0035] Figure 7 It is a schematic diagram of the usage status of the integrated protection and flood prevention system for underground stations of urban rail transit in Example 2 of the present application.

[0036] Explanation of the reference numerals: 1. Flooring; 11. Strip-shaped insertion groove; 2. Water retaining plate; 21. Hanging chain; 22. Reinforcing ribs; 3. Fixing rod; 31. Sealing plate; 311. Water outlet; 4. Embedded box; 41. Elastic waterproof ring; 42. Leakage hole; 5. Locking rod; 6. Pressure rod; 7. Counterweight unit; 71. Counterweight block; 711. Leakage hole; 8. U-shaped strip. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-7 This application is described in further detail.

[0038] The embodiment of the present application discloses an integrated protection and flood prevention system for underground stations of urban rail transit.

[0039] Reference Figure 1An integrated flood protection system for an underground station of an urban rail transit includes a floor 1 and a water baffle 2. The number of the floor 1 and the water baffle 2 is the same and both are multiple. The water baffle 2 is welded and fixed to one end of the floor 1, and a plurality of strip-shaped insertion grooves 11 are provided on the floor 1. In the present application, the angle between the floor 1 and the water baffle 2 is between 45 degrees and 90 degrees. In the present embodiment, the angle between the floor 1 and the water baffle 2 is preferably 90 degrees. By making the floor 1 in contact with the ground at the passage entrance, the water baffle 2 will form a water retaining area with a height.

[0040] Reference Figure 1 , two adjacent water retaining plates 2 are spliced ​​to form a splicing seam. In order to increase the sealing performance of the protection and flood prevention system formed by multiple water retaining plates 2 and reduce the possibility of rainwater leakage through the splicing seam, the urban rail transit underground station integrated protection and flood prevention system also includes at least one U-shaped bar 8, which is located at the splicing seam and is slidably connected to the water retaining plate 2.

[0041] Reference Figure 2 In order to ensure the position stability of the floor 1 and the water retaining plate 2 during flood protection and to reduce the possibility that the floor 1 loses its flood protection function due to position movement or flipping, it is necessary to restrict the position of the floor 1. Therefore, the integrated flood protection system for underground stations of urban rail transit also includes fixed rods 3 and embedded boxes 4. The number of fixed rods 3 and embedded boxes 4 is the same and both are multiple. The fixed rods 3 are hollow and embedded in the soil at the passage entrance. The lower end of the fixed rod 3 is welded and fixed to the embedded box 4. The embedded box 4 is hollow and the inner cavity of the embedded box 4 is connected to the inner cavity of the fixed rod 3.

[0042] Reference Figure 2 Furthermore, the integrated flood prevention and protection system for underground urban rail transit stations also includes a locking rod 5, a pressure rod 6 and a counterweight unit 7. The number of the locking rod 5, the pressure rod 6 and the counterweight unit 7 is the same and they are all multiple. The locking rod 5 is inserted into the fixed rod 3, and the lower end of the locking rod 5 extends into the inner cavity of the embedded box 4. The pressure rod 6 is vertically welded to the upper end of the locking rod 5, and the axial direction of the pressure rod 6 is horizontally arranged. The counterweight unit 7 is connected to the lower end of the locking rod 5, and the counterweight unit 7 is located in the inner cavity of the embedded box 4. The pressure rod 6 passes through the strip insertion groove 11 and then rotates horizontally. At this time, the upward force applied to the pressure rod 6 is stopped, and the pressure rod 6 can be overlapped on the top wall of the floor 1 under the action of the counterweight unit 7 and its own gravity.

[0043] Reference Figure 2Furthermore, the counterweight unit 7 includes a counterweight block 71, which is connected to the locking rod 5 and is located in the inner cavity of the embedded box 4. The gravity of the counterweight block 71 is applied to the pressure rod 6 through the locking rod 5, thereby increasing the force of the pressure rod 6 acting on the floor 1, thereby reducing the possibility of horizontal displacement or flipping of the floor 1.

[0044] Reference Figure 3 The counterweight block 71 is hollow, and the top wall opening of the counterweight block 71 is formed into a water-containing cavity. When the pressure rod 6 and the fixed rod 3 are in contact, a water-entry gap is left. The fixed rod 3 is located directly above the water-containing cavity. When the rain is small, the rainwater entering the channel mouth flows into the inner cavity of the fixed rod 3 through the water-entry gap, and then flows into the embedded box 4 to achieve rainwater retention; the counterweight block 71 is hollow and has a top wall opening, and the water that infiltrates through the water-entry gap can be gathered into the water-containing cavity and then the water's own weight can be used to achieve counterweighting. Before the rain comes, the amount of water in the water-containing cavity is small, which can reduce the labor intensity of the operator to increase the pressure rod 6.

[0045] Reference Figure 3 An elastic waterproof ring 41 is bonded and fixed on the inner top wall of the embedded box 4. When the pressure rod 6 passes through the strip insertion groove 11 and overlaps with the top wall of the floor 1, the upper edge of the top wall of the counterweight block 71 is pressed against the elastic waterproof ring 41, so that the counterweight block 71 and the inner cavity of the fixing rod 3 form an enlarged water-containing cavity, thereby increasing the gravity exerted by the water on the locking rod 5, thereby improving the position stability of the floor 1.

[0046] Reference Figure 4 and Figure 5 Furthermore, a sealing disk 31 is welded and fixed to one end of the locking rod 5 away from the pressure rod 6. The sealing disk 31 is located below the counterweight block 71, and the locking rod 5 passes through the counterweight block 71 and is rotatably connected to the counterweight block 71 through a sealed bearing. The sealing disk 31 and the counterweight block 71 slide relatively with each other, and a plurality of water outlet holes 311 are provided on the sealing disk 31, and a plurality of leakage holes 711 are provided on the bottom wall of the counterweight block 71. The plurality of water outlet holes 311 and the leakage holes 711 are distributed around the circumference of the locking rod 5. After the sealing disk 31 is rotated, the water outlet holes 311 can be connected with the leakage holes 711, and a plurality of leakage holes 42 are provided on the embedded box 4.

[0047] Reference Figure 6, apply force to the pressure rod 6 so that the pressure rod 6 passes through the strip insertion groove 11, and then rotate the pressure rod 6 so that the pressure rod 6 overlaps the floor 1. At this time, the water outlet hole 311 on the sealing plate 31 and the leakage hole 711 on the counterweight block 71 are staggered, and the lower part of the water containing chamber is in a closed state. At this time, the water in the water containing chamber applies downward gravity to the locking rod 5. After the rainwater recedes, the pressure rod 6 is rotated, and the pressure rod 6 drives the sealing plate 31 to rotate through the locking rod 5, so that the water outlet hole 311 is connected with the leakage hole 711, and the water in the water containing chamber enters the inner cavity of the embedded box 4 through the connected water outlet hole 311 and leakage hole 711, and finally penetrates into the soil through the leakage hole 42; the water in the water containing chamber can be stored and released, thereby reducing the contact time between the locking rod 5 and the counterweight block 71 and the water body, and extending the service life of the counterweight block 71, the locking rod 5 and the fixing rod 3.

[0048] Reference Figure 6 In some embodiments of the present application, a strip-shaped insertion groove 11 is opened on the floor surface 1 at one end away from the water baffle plate 2, so that the pressure exerted by the pressure rod 6 on the floor surface 1 can maintain the maximum torque acting on the water baffle plate 2, so as to reduce the possibility of the water baffle plate 2 flipping over; and the end of the water baffle plate 2 away from the floor surface 1 is bolted to a hanging chain 21, and the end of the hanging chain 21 away from the water baffle plate 2 is detachably fixedly connected to the pressure rod 6 by bolts, so as to increase the stability of the connection structure between the water baffle plate 2 and the floor surface 1.

[0049] Reference Figure 7 In some other embodiments of the present application, a strip-shaped insertion groove 11 is arranged on the floor surface 1 near one end of the water retaining plate 2, which can improve the position reliability of the floor surface 1 after horizontal displacement, and can also reduce the speed at which rainwater penetrates into the water holding cavity through the water entry gap; and a plurality of reinforcing ribs 22 are welded and fixed between the floor surface 1 and the water retaining plate 2, and the reinforcing ribs 22 are arranged perpendicular to the floor surface 1 and the water retaining plate 2 to increase the stability of the connection structure between the water retaining plate 2 and the floor surface 1.

[0050] The implementation principle of an integrated flood protection system for an underground station of urban rail transit in the embodiment of the present application is as follows: before the rain comes, force is applied to the water retaining plate 2, and the water retaining plate 2 drives the floor 1 to move until the strip-shaped insertion groove 11 opened on the floor 1 is aligned with the pre-installed pressure rod 6 on the passage opening, force is applied to the pressure rod 6 so that the pressure rod 6 passes through the strip-shaped insertion groove 11, and then the pressure rod 6 is rotated until the pressure rod 6 can overlap the top wall of the floor 1, and then the force applied to the pressure rod 6 is stopped. The pressure rod 6 applies vertical downward pressure to the floor 1 under the action of the counterweight unit 7, so that a large pressure is maintained between the floor 1 and the ground. When the rainwater accumulates step by step and reaches a certain depth, the rainwater will apply lateral force to the water retaining plate 2. At this time, since the locking rod 5 passes through the strip-shaped insertion groove 11, the locking rod 5 Groove 11, so the floor 1 will not produce a large relative displacement with the channel opening in the horizontal direction. Since the pressure rod 6 is pressed against the floor 1, and the movement direction of the pressure rod 6 is limited by the positional relationship between the locking rod 5 and the fixing rod 3, it can only move upward. Therefore, the water retaining plate 2 will not flip over, thereby ensuring the position stability of the floor 1 and the water retaining plate 2, and ensuring the reliability of intercepting rainwater; an interception structure for intercepting water can be formed by cooperating with the floor 1 and the water retaining plate 2, and a accommodating space can be provided for the locking rod 5 and the counterweight unit 7 by the fixing rod 3 and the embedded box 4, and the horizontal displacement control and flipping control of the floor 1 can be realized by cooperating with the locking rod 5 and the pressure rod 6, thereby ensuring the position stability of the water retaining plate 2 and ensuring the reliability of intercepting rainwater.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An integrated flood prevention system for underground urban rail transit stations, characterized in that: include: A plurality of floor panels (1), one end of each of the floor panels (1) being connected to a water retaining plate (2), and a plurality of strip-shaped insertion grooves (11) being provided on the floor panels (1); A plurality of hollow fixing rods (3), wherein the fixing rods (3) are pre-buried in the soil, and the lower ends of the fixing rods (3) are connected to a pre-buried box (4), and the inner cavities of the fixing rods (3) are in communication with the inner cavities of the pre-buried box (4); A plurality of locking rods (5), wherein the locking rods (5) are inserted into the fixing rods (3), and the upper ends of the locking rods (5) are vertically connected to the pressing rods (6), and the lower ends of the locking rods (5) are connected to the counterweight units (7), and the counterweight units (7) are located in the inner cavity of the embedded box (4), and the pressing rods (6) are horizontally rotated after passing through the strip-shaped insertion grooves (11) so as to abut against the top wall of the floor surface (1).

2. The integrated flood prevention system for underground urban rail transit stations according to claim 1 is characterized in that: The counterweight unit (7) comprises a counterweight block (71), the counterweight block (71) is connected to the locking rod (5), and the counterweight block (71) is located in the inner cavity of the embedded box (4).

3. The integrated flood prevention system for underground urban rail transit stations according to claim 2 is characterized in that: The counterweight block (71) is hollow and has an opening on the top wall to form a water-containing cavity. When the pressure rod (6) and the fixing rod (3) are in contact, a water-entry gap is left, and the fixing rod (3) is located directly above the water-containing cavity.

4. The integrated flood prevention system for underground urban rail transit stations according to claim 3 is characterized in that: An elastic waterproof ring (41) is connected to the inner wall of the embedded box (4), and when the pressure rod (6) passes through the strip-shaped insertion groove (11) and abuts against the top wall of the floor surface (1), the top wall of the counterweight block (71) abuts against the elastic waterproof ring (41).

5. The integrated flood prevention system for underground urban rail transit stations according to claim 4 is characterized in that: The locking rod (5) is connected to a blocking disk (31) at one end away from the pressure rod (6); the blocking disk (31) is located below the counterweight (71); the locking rod (5) is rotatably connected to the counterweight (71); the blocking disk (31) and the counterweight (71) slide relative to each other; a plurality of water outlet holes (311) are provided on the blocking disk (31); a plurality of water leakage holes (711) are provided on the bottom wall of the counterweight (71); and after the blocking disk (31) is rotated, the water outlet holes (311) and the water leakage holes (711) are connected to each other; and a plurality of leakage holes (42) are provided on the embedded box (4).

6. The integrated flood prevention system for underground urban rail transit stations according to any one of claims 1 to 5, characterized in that: The strip-shaped insertion groove (11) is arranged on the floor surface (1) at one end away from the water retaining plate (2).

7. The integrated flood prevention system for underground urban rail transit stations according to claim 6 is characterized by: The end of the water retaining plate (2) away from the floor surface (1) is connected to a hanging chain (21), and the hanging chain (21) is detachably fixedly connected to the pressure rod (6).

8. The integrated flood prevention system for underground urban rail transit stations according to any one of claims 1 to 5, characterized in that: The strip-shaped insertion groove (11) is arranged on the floor surface (1) close to one end of the water retaining plate (2).

9. The integrated flood prevention system for underground urban rail transit stations according to claim 8 is characterized in that: A plurality of reinforcing ribs (22) are connected between the floor surface (1) and the water retaining plate (2).

10. The integrated flood prevention system for underground urban rail transit stations according to claim 1 is characterized in that: Two adjacent water retaining plates (2) are spliced ​​together to form a splicing seam, and a U-shaped strip (8) is inserted at the splicing seam. The U-shaped strip (8) is slidably connected to the water retaining plates (2).

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