Flood season drainage device for subway station

Abstract

The invention relates to the technical field of subway station drainage, and particularly discloses a subway station flood season drainage device which comprises a drainage ditch, a plurality of cover plates are laid on the drainage ditch, the cover plates are sequentially hinged end to end, a dredging device is arranged at the drainage ditch, and the dredging device comprises moving vehicles arranged on the two sides of the drainage ditch respectively. The tops of the two moving vehicles are fixed through a cover plate, and a collecting device is arranged between the two moving vehicles. The device has the beneficial effects that the shovel plate at the front end of the collecting tank makes contact with the bottom face of the drainage ditch, sundries can enter the collecting tank from the collecting opening along the shovel plate during advancing, and the sundries can be smashed and discharged, so that the deposited sundries at the bottom of the drainage ditch can be removed, the drainage capacity of the drainage ditch is recovered, and the service life of the drainage ditch is prolonged. And the cross rod can be inserted into the gap of the cover plate when rotating along with the rotating ring, so that the gap of the cover plate is dredged.

Description

Technical Field

[0001] This invention relates to the field of subway station drainage technology, and more particularly to a subway station flood season drainage device. Background Technology

[0002] Urban rail transit systems, especially subways, are crucial infrastructure in modern cities, and their safe operation is paramount. Subway stations are typically underground, with their entrances, ventilation shafts, and other areas generally lower than the surrounding ground level, facing the severe challenge of rainwater intrusion during the flood season. Once rainwater enters the station, it not only disrupts normal operations but can also endanger critical equipment such as power supply and signaling systems, causing significant economic losses and social impact. Therefore, an efficient and reliable station drainage system is a key element in ensuring subway safety during the flood season. Currently, subway stations generally use drainage ditches (or intercepting ditches, collection ditches) at entrances, passageways, and platform edges to collect and drain inflowing rainwater. These drainage ditches are usually constructed of concrete or metal, covered with slotted covers. Surface water flows into the ditch through the gaps in the covers, then flows down the longitudinal slope of the ditch into a collection well, and is finally pumped out. However, in actual operation, existing drainage systems mainly suffer from the following technical problems: First, debris easily accumulates at the bottom of drainage ditches, affecting drainage capacity during the flood season. During the non-flood season, due to low rainfall, surface runoff carries less sediment, leaves, cigarette butts, and other debris into the drainage ditches, and the water flow is slow. While this debris may settle at the bottom, it is insufficient to completely block the drainage cross-section, having a limited impact on daily drainage. However, during the flood season, heavy rainfall increases the flow rate, carrying large amounts of previously deposited and newly added debris. These deposits are stirred and migrated by the rapid flow, easily causing blockages at bends, slope changes, or entrances to collection wells in the drainage ditches. This significantly reduces the cross-sectional area, or even completely blocks the flow, leading to a sharp decline in drainage capacity. This inability to promptly remove incoming rainwater can result in surface flooding and even backflow into the station.

[0003] Secondly, the gaps in the drainage ditch covers are easily clogged, affecting the timely inflow of surface water. To prevent larger debris from falling into the drainage ditch, the covers are usually designed with perforations. However, during the flood season, as rainfall intensity increases, floating debris such as plastic bags, paper, and fallen leaves carried by surface runoff quickly accumulates and covers the cover surface. Under water pressure and suction, this debris easily clogs the water inlet gaps. Furthermore, at crowded station entrances and exits, mud and sand carried by passengers' shoes, as well as carelessly discarded debris, can easily become embedded in the gaps. Clogged cover gaps directly prevent surface water from flowing smoothly into the drainage ditch, causing water accumulation above the covers. This not only affects normal passenger passage but also increases the possibility of rainwater overflowing the flood barriers and entering the station interior.

[0004] Therefore, when dealing with heavy rainfall during the flood season, the existing subway station drainage systems face two interconnected and critical issues that significantly impact drainage efficiency: the migration and blockage of sediment at the bottom of the drainage ditches and the surface sealing of the water inlet gaps in the cover plates. Effectively cleaning or preventing the accumulation of debris in the drainage ditches and maintaining the unobstructed flow of water in the cover plate gaps during the flood season are urgent problems that need to be solved. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drainage device for subway stations during the flood season.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A drainage device for a subway station during the flood season includes a drainage ditch with multiple cover plates laid flat on it. The cover plates are hinged together end to end in sequence. A dredging device is provided at the drainage ditch, which includes two mobile vehicles respectively set on both sides of the drainage ditch. The tops of the two mobile vehicles are fixed together by cover plates. A collection device is provided between the two mobile vehicles. The collection device includes a collection tank, the lower side of which is located in the drainage ditch. The two cover plates above the collection tank are pressed upward and tilted by the collection tank. Both ends of the collection tank are provided with sewage pipes. Each mobile vehicle has a waste storage box on one side. The sewage pipes pass through the gap between the two tilted cover plates. The sewage pipes pass through the mobile vehicles one by one and are connected to the storage boxes. A collection port is provided on one side of the collection tank. A shovel plate is fixedly connected to the side of the collection port. A crushing and guiding device is provided inside the collection tank.

[0007] Preferably, the outside of the collection tank is provided with a gap cleaning device, which includes two fixing rings. The fixing rings are fitted around the outside of the collection tank, and one side of the fixing ring is rotatably connected to a rotating ring. One side of the rotating ring is provided with multiple crossbars evenly distributed.

[0008] Preferably, the crossbar is a rubber rod with a trapezoidal cross-section.

[0009] Preferably, a water collection trough is provided on one side of the fixed ring, a cavity is provided inside the crossbar, multiple water spray holes are provided on one side of the cavity, and a connecting pipe is provided on one side of the crossbar, which is connected to the cavity and passes through the clearance hole of the rotating ring.

[0010] Preferably, a water supply device is fixedly connected to one side of the collection tank. The water supply device includes a mounting plate fixed to one side of the collection tank, a booster pump is mounted on the upper side of the mounting plate, the inlet hose of the booster pump is connected to the filter bucket, the filter bucket is suspended in the drainage ditch, and the outlet pipe of the booster pump is connected to the water collection tank.

[0011] The beneficial effects of the present invention are as follows: In the present invention, the shovel plate at the front end of the collection tank contacts the bottom surface of the drainage ditch. When moving forward, the debris can enter the collection tank from the collection port along the shovel plate. These debris can be crushed and discharged, thus removing the sediment at the bottom of the drainage ditch and restoring the drainage capacity of the drainage ditch. When the crossbar rotates with the rotating ring, it can be inserted into the gap of the cover plate, thereby clearing the gap of the cover plate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the basic structure of the present invention; Figure 2 This is a schematic diagram of the basic structure of the unblocking device; Figure 3 This is a schematic diagram of the connection structure between the collection device and the gap cleaning device; Figure 4 This is a schematic diagram of the basic structure of the collection device; Figure 5 This is a schematic diagram of the basic structure of a gap-cleaning device; Figure 6 This is a schematic diagram of the basic structure of the fixed ring; Figure 7 This is a schematic diagram of the basic structure of a rotating ring; Figure 8 This is a schematic diagram of the connection structure between the drainage ditch and the cover plate. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0014] Example 1 like Figures 1-7 As shown in the figure, the flood season drainage device for a subway station disclosed in this embodiment includes a drainage ditch 100, on which multiple cover plates 200 are laid flat. The cover plates 200 are sequentially hinged end to end, and multiple evenly distributed gaps are provided on the cover plates 200. A dredging device is provided at the drainage ditch 100, which includes two mobile carts 1 respectively set on both sides of the drainage ditch 100. The tops of the two mobile carts 1 are fixed together by cover plates 11. A collection device 3 is provided between the two mobile carts 1, which is used to collect, crush and discharge the sediment at the bottom of the drainage ditch 100.

[0015] Specifically, the collection device 3 in this embodiment includes a collection tank 31, which is a cylindrical storage tank. The collection tank 31 is horizontally arranged, that is, the axis of the collection tank 31 is consistent with the horizontal plane. When the lower side of the collection tank 31 is located in the drainage ditch 100, the height of the axis of the collection tank 31 is higher than the depth of the drainage ditch 100. At this time, the two cover plates 200 above the collection tank 31 are pressed upward and tilted by the collection tank 31. At this time, the two cover plates 200 form a gap with the upper surface of the drainage ditch 100. Both ends of the collection tank 31 are provided with sewage pipes 32. Each mobile vehicle 1 is provided with a waste storage box 2 on one side. The sewage pipes 32 pass through the gap between the two tilted cover plates 200. The sewage pipes 32 pass through the mobile vehicle 1 one by one and are connected to the storage box 2. The collection tank 31 has a collection port 33 on one side, and a shovel plate 34 is fixedly connected to the side of the collection port 33. A crushing and guiding device is provided inside the collection tank 31. The crushing and guiding device is existing technology. The crushing and guiding device can crush and discharge the debris entering the collection tank 31. The specific structure and working principle will not be described in detail here.

[0016] During use, the two mobile vehicles 1 move forward slowly and synchronously. At the same time, the collection tank 31 moves forward accordingly. The shovel 34 at the front end of the collection tank 31 contacts the bottom surface of the drainage ditch 100. As it moves forward, debris can enter the collection tank 31 from the collection port 33 along the shovel 34. This debris can be crushed and discharged. In this way, the sediment at the bottom of the drainage ditch can be removed, restoring the drainage capacity of the drainage ditch.

[0017] As the collection tank 31 moves forward, the cover plates 200 are pressed by the collection tank 31, causing them to tilt one by one before gradually returning to a horizontal position. This design eliminates the need for workers to manually remove the cover plates 200 one by one before cleaning the drainage ditch 100, saving both time and manpower. When not in use, the collection device can be moved to the side of a wall, thus not obstructing pedestrian traffic.

[0018] Example 2 Based on Embodiment 1, to effectively solve the problem of easy clogging of the gaps in the drainage ditch cover, this embodiment provides a gap-cleaning device 4 on the outside of the collection tank 31. The gap-cleaning device 4 includes two fixing rings 41, which are fitted around the outside of the collection tank 31 and fixedly connected to it. One side of the fixing ring 41 is rotatably connected to a rotating ring 42, and one side of the rotating ring 42 is provided with multiple evenly distributed crossbars 43. The spacing of the crossbars 43 matches the gap spacing of the cover 200. The surfaces of the rotating ring 42 and the crossbars 43 are rough. Thus, during the initial movement of the collection tank 31, under the action of the rotating ring 42 and the cover 200, the rotating ring 42 rotates around the fixing ring 41. When the rotating ring 42 rotates, the crossbars 43 also rotate. When the crossbars 43 rotate with the rotating ring 42, they can be inserted into the gaps of the cover 200, thereby clearing the gaps in the cover.

[0019] In this embodiment, the crossbar 43 is made of rubber and has a trapezoidal cross-section. This gives the crossbar 43 a certain degree of deformability, and the front end is smaller than the width of the gap, making it easier to insert into the gap of the cover plate 200. This further improves the unblocking effect on the gap of the cover plate.

[0020] To further improve the unblocking effect on the gaps in the cover plate, a water collection trough 411 is provided on one side of the fixing ring 41, and a cavity is provided inside the crossbar 43. Multiple water spray holes 44 are provided on one side of the cavity, and a connecting pipe is provided on one side of the crossbar 43, which is connected to the cavity. The connecting pipe passes through the clearance hole 421 of the rotating ring 42. With this configuration, as the crossbar 43 moves, when the connecting pipe of the crossbar 43 aligns with the water collection trough 411, water from the water collection trough 411 enters the cavity of the crossbar 43 and is sprayed out from the water spray holes 44, thereby cleaning the gaps in the cover plate.

[0021] To facilitate water collection, a water supply device 5 is fixedly connected to one side of the collection tank 31 in this embodiment. The water supply device 5 includes a mounting plate 51 fixed to one side of the collection tank 31, and a booster pump 52 is mounted on the upper side of the mounting plate 51. The inlet hose 53 of the booster pump 52 is connected to a filter bucket 54, which is suspended in the drainage ditch 100. The outlet pipe 55 of the booster pump 52 is connected to the water collection tank 411. In this way, water in the drainage ditch 100 can be drawn out directly by the booster pump 52 for use without the need for an additional water supply.

Claims

1. A drainage device for a subway station during the flood season, comprising a drainage ditch (100), wherein a plurality of cover plates (200) are laid flat on the drainage ditch (100), and the cover plates (200) are sequentially hinged end to end, characterized in that: A dredging device is provided at the drainage ditch (100). The dredging device includes two mobile vehicles (1) respectively set on both sides of the drainage ditch (100). The tops of the two mobile vehicles (1) are fixed together by a cover plate (11). A collection device (3) is provided between the two mobile vehicles (1). The collection device (3) includes a collection tank (31). The lower side of the collection tank (31) is located inside the drainage ditch (100). The two cover plates (200) above the collection tank (31) are pressed upward and tilted by the collection tank (31). Both ends of the collection tank (31) are provided with sewage pipes (32), and each mobile vehicle (1) is provided with a waste storage box (2) on one side. The sewage pipe (32) passes through the gap between two inclined cover plates (200). The sewage pipe (32) passes through the mobile vehicle (1) one by one and is connected to the storage box (2). The collection tank (31) is provided with a collection port (33) on one side. The collection port (33) is fixedly connected to a shovel plate (34) on one side. A crushing and guiding device is provided in the collection tank (31).

2. A drainage device for subway stations during the flood season according to claim 1, characterized in that: The collection tank (31) is provided with a gap cleaning device (4) on the outside. The gap cleaning device (4) includes two fixing rings (41). The fixing rings (41) are sleeved on the outside of the collection tank (31). One side of the fixing rings (41) is rotatably connected to a rotating ring (42). One side of the rotating ring (42) is provided with multiple crossbars (43) evenly arranged.

3. A drainage device for subway stations during the flood season according to claim 2, characterized in that: The crossbar (43) is a rubber rod with a trapezoidal cross-section.

4. A drainage device for subway stations during the flood season according to claim 2, characterized in that: The fixed ring (41) has a water collection trough (411) on one side, and the crossbar (43) has a cavity inside. The cavity has multiple water spray holes (44) on one side, and the crossbar (43) has a connecting pipe on one side. The connecting pipe is connected to the cavity and passes through the clearance hole (421) of the rotating ring (42).

5. A subway station flood season drainage device according to claim 4, characterized in that: A water supply device (5) is fixedly connected to one side of the collection tank (31). The water supply device (5) includes a mounting plate (51) fixed to one side of the collection tank (31). A booster pump (52) is mounted on the upper side of the mounting plate (51). The inlet hose (53) of the booster pump (52) is connected to the filter bucket (54). The filter bucket (54) is suspended in the drainage ditch (100). The outlet pipe (55) of the booster pump (52) is connected to the water collection tank (411).

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