Undersea underground subway section anti-flood door

Abstract

The utility model relates to the technical field of interval anti-flood door, propose a kind of cross-sea underground subway interval anti-flood door, the anti-flood door includes frame seat and the sliding door plate assembled to its inner side, frame seat outside is equipped with the sliding lock component of driving sliding door plate horizontal transverse movement. Sliding door plate middle part is opened with flow-through groove, its side is equipped with pumping unit, can with one side interval ponding pumping to the other side through flow-through groove. Flow-through groove is equipped with opening and closing component, the component includes by the main shaft of second reversible motor drive, fixed in main shaft's worm, the worm wheel meshed with worm, and the sealing cover rotated by worm wheel drive is opened and closed. The utility model innovatively integrates drainage and sealing function, by pumping unit can actively discharge the ponding that has invaded, and reliable self-locking sealing of flow-through groove is realized using worm and gear mechanism, solve the problem that internal ponding cannot be discharged after traditional anti-flood door is closed, significantly improve the initiative safety of cross-sea subway tunnel emergency anti-flood.

Description

Technical Field

[0001] This utility model relates to the field of flood prevention gate technology, specifically, to a flood prevention gate for a cross-sea underground subway section. Background Technology

[0002] As a crucial transportation hub connecting both sides of the sea, the tunnel sections of cross-sea subways are constantly threatened by high water pressure. Floodgates are critical safety facilities used to block water flow and prevent the spread of disaster in emergencies such as tunnel ruptures and leaks. Currently, most common floodgates adopt swing-type or ordinary sliding-type structures. While these structures can provide some water-blocking effect when closed, they still have significant shortcomings: First, after traditional floodgates close, water that has seeped into the protected area cannot drain, still leading to equipment soaking and operational interruptions; second, the sealing mechanisms of ordinary sliding or flat doors are prone to deformation or opening under high water pressure, resulting in insufficient sealing reliability; furthermore, existing floodgates have limited functionality and lack the ability to actively manage internal water accumulation in a sealed state. Therefore, there is an urgent need to design a floodgate system that can quickly seal, actively drain water, and has stronger pressure-bearing sealing performance. Utility Model Content

[0003] This utility model proposes a flood-proof door for cross-sea underground subway sections, which solves the above-mentioned problems existing in the prior art.

[0004] The technical solution of this utility model is as follows: a flood-proof door for a cross-sea underground subway section, comprising a main component, the main component comprising a frame base and a sliding door panel assembled inside the frame base;

[0005] A push-pull locking assembly disposed on the outside of the frame base and capable of driving the push-pull door panel to move horizontally to complete opening and closing.

[0006] A flow groove is formed in the middle of the sliding door panel;

[0007] A water pumping assembly is installed at the flow channel of the sliding door panel and is capable of pumping water accumulated on one side to the other side.

[0008] An opening and closing component installed inside the flow channel, which can be closed and locked after the pumping component has finished pumping out the accumulated water.

[0009] Preferably, the push-pull locking assembly further includes:

[0010] A threaded rod that is symmetrically rotated and connected to the upper and lower inner sides of the frame seat;

[0011] The threaded rod and the sliding door panel are connected by a threaded drive.

[0012] The first positive and negative motors are fixedly installed on the outside of the frame base;

[0013] The output end of the first forward and reverse motor is fixedly connected to one of the sets of threaded rods.

[0014] Preferably, the push-pull locking assembly further includes:

[0015] Synchronizing pulleys are fixedly connected to the outside of each of the threaded rods.

[0016] Preferably, the push-pull locking assembly further includes:

[0017] A synchronous belt located outside the two sets of synchronous pulleys;

[0018] The inner side of the synchronous belt is in contact with the synchronous pulley and is connected by meshing transmission.

[0019] Preferably, the pumping assembly includes:

[0020] A water pump is fixedly installed on the side of the sliding door panel;

[0021] The water pump is positioned corresponding to the flow channel.

[0022] Preferably, the pumping assembly further includes:

[0023] A pumping pipe is fixedly connected to the inside of the water pump;

[0024] One end of the water pumping pipe faces the ground, and the other end faces the inside of the flow channel.

[0025] Preferably, the opening and closing component includes:

[0026] A support frame symmetrically and fixedly connected to the outside of the sliding door panel;

[0027] A second positive and negative motor is fixedly installed on the outside of one of the support frames.

[0028] Preferably, the opening and closing component further includes:

[0029] The main shaft is rotatably connected to the middle of the two sets of support frames;

[0030] The main shaft is fixedly connected to the output end of the second forward and reverse motor.

[0031] The worm gear is fixedly connected to the outside of the main shaft.

[0032] Preferably, the opening and closing component further includes:

[0033] A secondary pivot is rotatably connected to the side of the sliding door panel;

[0034] A worm gear fixedly connected to one end of the secondary shaft;

[0035] The worm gear is in contact with the worm and is connected in a meshing rotational manner.

[0036] Preferably, the opening and closing component further includes:

[0037] A cover for opening and closing is fixedly connected to the other end of the secondary rotating shaft;

[0038] The opening and closing cap is located inside the flow channel.

[0039] The beneficial effects of this utility model are as follows:

[0040] Innovation Point 1: Floodgate Structural Design with "Active Drainage" Function

[0041] Innovative content:

[0042] A flow channel was created on the floodgate body (sliding door panel) and a set of water pumping components (water pump and water pipe) were integrated. This constitutes a "closable temporary drainage channel".

[0043] The technical problems solved and the benefits achieved:

[0044] Solving the problem of delayed flooding: Traditional floodgates, while preventing further influx of external floodwater after closing, cannot drain water that has already entered the protected section (inner zone), and will still flood that section. This design can actively drain the infiltrated water back to the danger zone after the gate is closed, buying valuable time for emergency repairs and evacuations, and minimizing losses.

[0045] Achieving "Dynamic Sealing": This design upgrades the floodgate from a purely physical barrier into a system with dynamic water management capabilities. It allows for controlled drainage operations in emergencies without reopening the main gate, representing a smarter and more proactive safety strategy.

[0046] Innovation Point Two: Self-Locking Sealing Mechanism for Flow Grooves Based on Worm Gears

[0047] Innovative content:

[0048] The opening and closing assembly for shutting off the flow channel employs a worm gear and worm wheel-driven opening and closing cap. This is a key mechanical design feature.

[0049] The technical problems solved and the benefits achieved:

[0050] Achieving reliable one-way self-locking: The worm gear mechanism has a reverse self-locking characteristic. When water flow attempts to open the sealing cover from the outside (danger zone), the mechanism can automatically lock, preventing the cover from being forced open by water pressure and ensuring the absolute reliability of the final seal.

[0051] Enhanced pressure resistance and safety: Compared with ordinary screw or hydraulic mechanisms, this purely mechanical self-locking method does not rely on external power or sensors to maintain the closed state. It has strong anti-interference ability and low failure risk, making it particularly suitable for cross-sea tunnel scenarios with high pressure requirements and complex environments. Attached Figure Description

[0052] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0053] Figure 1 This is a schematic diagram of the overall device of this utility model. Figure 1 ;

[0054] Figure 2 This is a schematic diagram of the overall device of this utility model. Figure 2 ;

[0055] Figure 3 This is a schematic diagram of the sliding door panel of this utility model;

[0056] Figure 4 This is a schematic diagram of the opening and closing component of this utility model;

[0057] In the diagram: 1. Main component; 11. Frame base; 12. Sliding door panel; 121. Flow channel; 2. Sliding locking component; 21. First forward and reverse motor; 22. Threaded rod; 221. Synchronous pulley; 23. Synchronous belt; 3. Water pumping component; 31. Water pump; 32. Water pumping pipe; 4. Opening and closing component; 41. Support frame; 42. Second forward and reverse motor; 43. Main shaft; 431. Worm gear; 44. Secondary shaft; 441. Worm wheel; 442. Opening and closing cover. Detailed Implementation

[0058] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0059] Please see Figures 1 to 4 This utility model provides a flood-proof door for a cross-sea underground subway section, including a main component 1, which is mainly composed of a frame base 11 and a sliding door panel 12. The frame base 11 serves as the core support structure, and it is firmly connected to the tunnel concrete structure through embedded parts to ensure that it can withstand the huge water pressure thrust. The sliding door panel 12 is assembled in the inner track of the frame base 11, and its water-facing surface and periphery are inlaid with polymer rubber sealing strips to achieve a preliminary static seal when closed.

[0060] Located on the outside of the frame base 11 is the push-pull locking assembly 2, which is responsible for driving the push-pull door panel 12 to move horizontally to open and close the tunnel. In a preferred embodiment, the push-pull locking assembly 2 includes a first forward / reverse motor 21 fixedly mounted on the outside of the frame base 11. The output shaft of the first forward / reverse motor 21 is fixedly connected to one of the threaded rods 22 via a coupling. The two threaded rods 22 are symmetrically rotatably connected to the upper and lower inner sides of the frame base 11, and they are threadedly connected to the push-pull door panel 12 through threaded holes. To ensure synchronous rotation of the two threaded rods 22 and prevent the push-pull door panel 12 from jamming, a synchronous pulley 221 is fixedly connected to the end of each threaded rod 22, and the two synchronous pulleys 221 are meshed and driven by a synchronous belt 23. When the first forward / reverse motor 21 is started, it drives the two threaded rods 22 to rotate synchronously, thereby causing the push-pull door panel 12 to move smoothly horizontally.

[0061] A flow channel 121 is formed in the middle of the sliding door panel 12. The design of this flow channel 121 is the key to the active drainage of this patent. It provides a controllable fluid channel on the basis of the complete blockage of the channel by conventional flood doors.

[0062] A water pumping assembly 3 is located on the side of the sliding door panel 12, at the flow channel 121. The water pumping assembly 3 includes a water pump 31 fixedly installed on the side of the sliding door panel 12. The inlet of the water pump 31 is connected to a water pumping pipe 32. One end of the water pumping pipe 32 extends to the vicinity of the ground in the inner section of the protected area to draw up accumulated water, while the other end faces the inner side of the flow channel 121. When drainage is required, the water pump 31 is started, which forces the accumulated water in the inner section to be pumped through the flow channel 121 and discharged to the outer section of the non-protected area.

[0063] The opening and closing assembly 4 is installed within the flow channel 121. Its function is to completely seal the flow channel 121 after pumping operations or in emergency situations. The opening and closing assembly 4 includes support frames 41 symmetrically fixedly connected to the outside of the sliding door panel 12, and a second forward and reverse motor 42 fixedly installed on one of the support frames 41. The output end of the second forward and reverse motor 42 is fixedly connected to a main rotating shaft 43, which is rotatably supported between the two sets of support frames 41 via bearing seats. A worm gear 431 is fixedly installed on the main rotating shaft 43. Cooperating with it is a secondary rotating shaft 44 rotatably connected to the side of the sliding door panel 12. One end of the secondary rotating shaft 44 is fixedly connected to a worm wheel 441 that meshes with the worm gear 431, and the other end is fixedly connected to an opening and closing cover 442 that can completely cover the flow channel 121. The meshing transmission between the worm gear 441 and the worm 431 has a reverse self-locking characteristic, which means that when water flows from the outside and attempts to open the sealing cover 442, the mechanism can automatically lock, thereby ensuring the absolute reliability of the seal under high water pressure.

[0064] Working principle:

[0065] When the tunnel monitoring system detects a significant water leakage hazard in a section on one side of the frame base 11, such as the outer section, the control system first activates the first forward and reverse motor 21. The first forward and reverse motor 21 drives the threaded rod 22 at its output end to rotate. Under the meshing transmission of the synchronous pulley 221 and the synchronous belt 23, the upper and lower threaded rods 22 rotate synchronously. Through threaded transmission with the sliding door panel 12, the sliding door panel 12 moves horizontally within the frame base 11, quickly closing the tunnel passage and forming the first waterproof barrier.

[0066] Specifically, if some water has already entered the inner section of the protected area before or after the main gate closes, water pump 31 can be started immediately. Water pump 31 draws the water from the inner section through the pumping pipe 32 and pumps it to the flow channel 121, ultimately discharging it to the dangerous seepage area on the outside. This "active drainage" function can effectively control the rise in water level within the protected area, buying valuable time for personnel evacuation and equipment repair.

[0067] Specifically, when the water in the inner section is effectively drained by the pumping assembly 3, or when it is determined that the connection between the inner and outer water flows needs to be completely cut off, the second forward and reverse motor 42 can be activated. The second forward and reverse motor 42 drives the main shaft 43 and the worm gear 431 to rotate. The worm gear 431 drives the worm wheel 441 to rotate, which in turn drives the auxiliary shaft 44 and the opening and closing cover 442 fixed at its end to rotate, until the opening and closing cover 442 completely closes the flow channel 121. Due to the one-way self-locking characteristic of the worm gear mechanism, even if the external water pressure is huge, it is impossible to drive the worm gear 431 in the reverse direction, thereby ensuring the stability and sealing of the opening and closing cover 442 in the closed state, forming a reliable second waterproof barrier.

[0068] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flood-proof door for a cross-sea underground subway section, comprising a main component (1), characterized in that: The main component (1) includes a frame base (11) and a sliding door panel (12) assembled inside the frame base (11); A push-pull locking assembly (2) is provided on the outside of the frame base (11) and is capable of driving the push-pull door panel (12) to move horizontally to complete opening and closing; A flow groove (121) is formed in the middle of the sliding door panel (12); A water pumping assembly (3) is installed in the sliding door panel (12) at the flow channel (121) and is capable of pumping water accumulated on one side to the other side. An opening and closing component (4) is installed in the flow channel (121) and is able to close and lock after the pumping component (3) has completed pumping out the accumulated water.

2. The flood-proof door for a cross-sea underground subway section according to claim 1, characterized in that, The push-pull locking assembly (2) also includes: A threaded rod (22) is symmetrically rotated and connected to the upper and lower inner sides of the frame seat (11); The threaded rod (22) and the sliding door panel (12) are connected by a threaded transmission. The first positive and negative motor (21) is fixedly installed on the outside of the frame base (11); The output end of the first forward and reverse motor (21) is fixedly connected to one of the threaded rods (22).

3. A flood-proof door for a cross-sea underground subway section according to claim 2, characterized in that, The push-pull locking assembly (2) also includes: Synchronous pulleys (221) are fixedly connected to the outside of each of the threaded rods (22).

4. A flood-proof door for a cross-sea underground subway section according to claim 3, characterized in that, The push-pull locking assembly (2) also includes: Synchronous belts (23) are located outside the two sets of synchronous pulleys (221); The inner side of the synchronous belt (23) is in contact with the synchronous pulley (221) and is connected by meshing transmission.

5. A flood-proof door for a cross-sea underground subway section according to claim 1, characterized in that, The pumping assembly (3) includes: A water pump (31) is fixedly installed on the side of the sliding door panel (12); The water pump (31) is positioned corresponding to the flow channel (121).

6. A flood-proof door for a cross-sea underground subway section according to claim 5, characterized in that, The pumping assembly (3) also includes: A water pumping pipe (32) is fixedly connected to the inside of the water pump (31); One end of the water pump (32) faces the ground, and the other end faces the inside of the flow channel (121).

7. A flood-proof door for a cross-sea underground subway section according to claim 1, characterized in that, The opening and closing component (4) includes: A support frame (41) is symmetrically and fixedly connected to the outside of the sliding door panel (12); A second forward and reverse motor (42) is fixedly installed on the outside of one of the support frames (41).

8. A flood-proof door for a cross-sea underground subway section according to claim 7, characterized in that, The opening and closing component (4) also includes: The main shaft (43) is rotatably connected to the middle of the two sets of support frames (41); The main rotating shaft (43) is fixedly connected to the output end of the second forward and reverse motor (42); The worm (431) is fixedly connected to the outside of the main shaft (43).

9. A flood-proof door for a cross-sea underground subway section according to claim 8, characterized in that, The opening and closing component (4) also includes: The auxiliary pivot (44) is rotatably connected to the side of the sliding door panel (12); A worm gear (441) is fixedly connected to one end of the secondary shaft (44); The worm wheel (441) is in contact with the worm (431) and is meshed and rotated.

10. A flood-proof door for a cross-sea underground subway section according to claim 9, characterized in that, The opening and closing component (4) also includes: An opening and closing cover (442) is fixedly connected to the other end of the secondary rotating shaft (44); The opening and closing cover (442) is located inside the flow channel (121).

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