Underground flood control barriers at subway station entrances and exits

Abstract

The present invention discloses an underground flood-prevention baffle at an entrance and exit of a subway station, and relates to the technical field of flood-prevention baffles, comprising a base frame, one side of the base frame is symmetrically fixedly connected with a vertical rod, one side of the base frame is fixedly connected with a bottom sealing rod, one side of the base frame is rotatably connected with a flood-prevention lifting plate, the bottom of an inner wall of the base frame is symmetrically rotatably connected with an electric push rod, one end of the electric push rod is rotatably connected with the flood-prevention lifting plate, through the coordinated arrangement of a cleaning and drying mechanism and a cleaning and sealing mechanism, the upper surface and the front and rear sides of the flood-prevention lifting plate can be cleaned by a scraper and a scraper block, and at the same time, the upper surface and the left and right sides of the flood-prevention lifting plate are cleaned by blowing out airflow through a swing pipe, thereby improving the cleaning effect of the flood-prevention lifting plate, preventing the fitting effect between the flood-prevention lifting plate and the vertical rod and the bottom sealing rod from being affected by impurities on the side or upper surface of the flood-prevention lifting plate, ensuring the sealing of the flood-prevention lifting plate when in use, and further ensuring the flood-prevention protection effect of the flood-prevention lifting plate.

Description

Technical Field

[0001] The invention relates to the technical field of flood baffles, in particular to underground flood baffles at subway station entrances and exits. Background Art

[0002] The underground flood-prevention barriers at subway station entrances and exits are usually composed of a combination of panels. These panels can be buried under the ground at the subway station entrances and exits when not in use. When flood prevention is needed, they can be raised to block floods or accumulated water. The flood prevention principle is mainly to use the physical barrier effect of the baffles to keep floods or accumulated water out of the subway station.

[0003] When the existing underground flood barriers at the entrances and exits of subway stations are not in use, they are buried in the ground for a long time and are trampled on by passers-by for a long time, so there will be a lot of dust and impurities on the surface. The dust and impurities may adhere to the surface or side of the flood barriers, forming a physical barrier. When the flood barriers are raised, these impurities may hinder the close fit between the barriers and the ground or door frames, thereby resulting in a decrease in sealing.

[0004] Therefore, underground flood barriers at subway station entrances and exits are proposed to solve the above problems. Summary of the invention

[0005] In view of this, the technical problem to be solved by the present invention is to propose an underground flood baffle at the entrance and exit of a subway station to solve the problem that when the flood baffle in the prior art is raised, impurities on the surface or sides of the baffle may hinder the close fit between the baffle and the ground or door frame, thereby causing a decrease in sealing.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an underground flood-proof baffle at the entrance and exit of a subway station, comprising a base frame, one side of the base frame is symmetrically fixedly connected with a vertical rod, one side of the base frame is fixedly connected with a bottom sealing rod, one side of the base frame is rotatably connected with a flood-blocking lifting plate, the bottom of the inner wall of the base frame is symmetrically rotatably connected with an electric push rod, one end of the electric push rod is rotatably connected with the flood-blocking lifting plate, and also includes: a cleaning and sealing mechanism and a cleaning and air-drying mechanism, the cleaning and air-drying mechanism is driven by the cleaning and sealing mechanism;

[0007] The cleaning and sealing mechanism and the cleaning and air-drying mechanism are both used for cleaning the surface and side surfaces of the flood-blocking lifting plate.

[0008] Preferably, the cleaning and sealing mechanism includes an inverted U-shaped scraper rod, which is slidably connected to the bottom of the inner wall of the base frame. A slider is fixedly connected to one side of the inverted U-shaped scraper rod, and the slider is slidably connected to the base frame. A one-way screw is rotatably connected to one side of the base frame, and the one-way screw is threadedly connected to the slider.

[0009] Preferably, a scraper is equidistantly slidably connected to the bottom of the inverted U-shaped scraper rod, a scraper block is equidistantly fixedly connected to one side of the scraper, a sliding rod is fixedly connected to one side of the scraper, and the sliding rod is slidably connected to the inverted U-shaped scraper rod.

[0010] Preferably, a return spring is fixedly connected between the sliding rod and the inverted U-shaped scraper rod, a semicircular block is equidistantly fixedly connected to one side of the base frame, and the sliding rod is configured to be arc-shaped on one side close to the semicircular block.

[0011] Preferably, the cleaning and drying mechanism includes a rack, which is symmetrically fixedly connected to one side of the base frame, and inflation chambers are provided on both sides of the inverted U-shaped scraper rod. A one-way air intake valve is symmetrically fixedly connected to one side of the inverted U-shaped scraper rod, and the one-way air intake valve is connected to the adjacent inflation chamber.

[0012] Preferably, a connecting shaft is rotatably connected to one side of the one-way air intake valve, a gear is fixedly connected to one end of the connecting shaft near the rack, the gear is meshed with an adjacent rack, a reciprocating screw is fixedly connected to one end of the connecting shaft, and the reciprocating screw is rotatably connected to one side of the inflation chamber.

[0013] Preferably, a suction plate is threadedly connected to the outer surface of the reciprocating screw, and the suction plate is slidably connected to the inner surface of the inflation chamber. A connecting hose is fixedly passed through the bottom of the inflation chamber, and reciprocating shafts are rotatably connected to both sides of the inverted U-shaped scraper rod. A swing tube is fixedly connected between the reciprocating shafts, and the swing tube is connected to the connecting hose.

[0014] Preferably, an air outlet is fixedly connected to the outer surface of the swing tube at equal intervals, a torsion spring is fixedly connected between the reciprocating shaft and the inverted U-shaped scraper rod, a toggle rod is fixedly connected to the outer surface of the reciprocating shaft, the top of the toggle rod is arranged in an arc shape, and protrusions are fixedly connected to the outer surface of the connecting shaft at equal intervals, and one end of the protrusions is arranged in an arc shape.

[0015] Compared with the prior art, the present invention provides an underground flood-proof baffle for subway station entrances and exits, which has the following beneficial effects:

[0016] 1. Through the coordinated arrangement of the cleaning and drying mechanism and the cleaning and sealing mechanism, the upper surface and the front and rear sides of the flood control lifting plate can be cleaned by the scraper and the scraper block, and the upper surface and the left and right sides of the flood control lifting plate can be cleaned by blowing out the airflow through the swing pipe, thereby improving the cleaning effect of the flood control lifting plate, preventing the impurities on the side or upper surface of the flood control lifting plate from affecting the fitting effect between the flood control lifting plate and the vertical rod and the bottom sealing rod, ensuring the sealing of the flood control lifting plate during use, and thus ensuring the flood prevention and protection effect of the flood control lifting plate, and the one-way screw rod is driven to rotate by a single driving source, so that the scraping work of the swing pipe and the blowing work of the air outlet head can be carried out simultaneously, which not only improves the cleaning effect of the flood control lifting plate, but also saves additional operation steps and reduces the installation of additional driving sources;

[0017] 2. Through the setting of the sliding rod, the return spring and the semicircular block, the scraper and the scraper block can scrape the flood control lifting plate horizontally and realize longitudinal reciprocating scraping at the same time. By moving the scraper once, the effect of multiple moving scraping can be achieved, saving time and steps. At the same time, through the setting of the reciprocating shaft, the torsion spring, the toggle rod and the protrusion, the swing tube and the air outlet head can perform the air blowing cleaning work while the air outlet head can swing back and forth during the air blowing cleaning process. Changing the direction and angle of the air blowing can more effectively blow away the stains from the surface, improve the thoroughness of the cleaning, and increase the angle and efficiency of the air blowing cleaning of the air outlet head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 For the present invention Figure 1 Partial three-dimensional structure diagram;

[0020] Figure 3 It is a three-dimensional structural diagram of the sliding rod of the present invention;

[0021] Figure 4 It is a three-dimensional structural diagram of the rack of the present invention;

[0022] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0023] Figure 6 This is a cross-sectional structural diagram of an inverted U-shaped rod of the present invention;

[0024] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B in the middle.

[0025] In the figure:

[0026] 1. Base frame; 11. Vertical rod; 12. Bottom sealing rod; 13. Flood control lifting plate; 14. Electric push rod;

[0027] 201, inverted U-shaped scraper rod; 202, slider; 203, one-way screw rod; 204, scraper; 205, scraper block; 206, sliding rod; 207, return spring; 208, semicircular block;

[0028] 301. rack; 302. inflation chamber; 303. one-way air inlet valve; 304. connecting shaft; 305. gear; 306. reciprocating screw rod; 307. suction plate; 308. connecting hose; 309. reciprocating shaft; 310. swing tube; 311. air outlet head; 312. torsion spring; 313. toggle rod; 314. bump. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0031] Embodiments of the present invention: Please refer to Figures 1 to 7 As shown:

[0032] In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides an underground flood-proof baffle at the entrance and exit of a subway station, including a base frame 1, a vertical rod 11 is symmetrically fixedly connected to one side of the base frame 1, a bottom sealing rod 12 is fixedly connected to one side of the base frame 1, a flood-proof lifting plate 13 is rotatably connected to one side of the base frame 1, an electric push rod 14 is symmetrically rotatably connected to the bottom of the inner wall of the base frame 1, one end of the electric push rod 14 is rotatably connected to the flood-proof lifting plate 13, and also includes: a cleaning and sealing mechanism and a cleaning and air-drying mechanism, and the cleaning and air-drying mechanism is driven by the cleaning and sealing mechanism;

[0033] The cleaning sealing mechanism and the cleaning air-drying mechanism are both used for cleaning the surface and sides of the flood-blocking lifting plate 13 .

[0034] The cleaning and sealing mechanism includes an inverted U-shaped scraper rod 201, which is slidably connected to the bottom of the inner wall of the base frame 1. A slider 202 is fixedly connected to one side of the inverted U-shaped scraper rod 201, and the slider 202 is slidably connected to the base frame 1. A one-way screw rod 203 is rotatably connected to one side of the base frame 1, and the one-way screw rod 203 is threadedly connected to the slider 202. A scraper plate 204 is equidistantly slidably connected to the bottom of the inverted U-shaped scraper rod 201, and a scraper block 205 is equidistantly fixedly connected to one side of the scraper plate 204. A sliding rod 206 is fixedly connected to one side of the scraper plate 204. The sliding rod 206 is slidably connected to the inverted U-shaped scraper rod 201, and a reset spring 207 is fixedly connected between the sliding rod 206 and the inverted U-shaped scraper rod 201. A semicircular block 208 is equidistantly fixedly connected to one side of the base frame 1, and the sliding rod 206 is set to an arc shape on the side close to the semicircular block 208.

[0035] For further examples, please refer to Figures 1 to 7 As shown:

[0036] The cleaning and drying mechanism includes a rack 301, which is symmetrically fixedly connected to one side of the base frame 1. Inflatable chambers 302 are opened on both sides of the inverted U-shaped scraper rod 201. A one-way air intake valve 303 is symmetrically fixedly connected to one side of the inverted U-shaped scraper rod 201. The one-way air intake valve 303 is communicated with the adjacent inflation chamber 302. A connecting shaft 304 is rotatably connected to one side of the one-way air intake valve 303. A gear 305 is fixedly connected to one end of the connecting shaft 304 near the rack 301. The gear 305 is meshed with the adjacent rack 301. A reciprocating screw 306 is fixedly connected to one end of the connecting shaft 304. The reciprocating screw 306 is rotatably connected to one side of the inflation chamber 302.

[0037] A suction plate 307 is threadedly connected to the outer surface of the reciprocating screw rod 306, and the suction plate 307 is slidably connected to the inner surface of the inflation chamber 302. A connecting hose 308 is fixedly connected to the bottom of the inflation chamber 302, and a reciprocating shaft 309 is rotatably connected to both sides of the inverted U-shaped scraper rod 201. A swing tube 310 is fixedly connected between the reciprocating shafts 309, and the swing tube 310 is connected to the connecting hose 308. An air outlet head 311 is fixedly connected to the outer surface of the swing tube 310 at an equal distance, and a torsion spring 312 is fixedly connected between the reciprocating shaft 309 and the inverted U-shaped scraper rod 201. A toggle rod 313 is fixedly connected to the outer surface of the reciprocating shaft 309, and the top of the toggle rod 313 is set to an arc shape. The outer surface of the connecting shaft 304 is fixedly connected with bumps 314 at an equal distance, and one end of the bumps 314 is set to an arc shape.

[0038] In the prior art, when the underground flood baffles at the entrances and exits of subway stations are not in use, they are buried in the ground for a long time and are stepped on by passers-by for a long time, so there will be a lot of dust and impurities on the surface. The dust and impurities may adhere to the surface or side of the flood baffles, forming a physical barrier. When the flood baffles are raised, these impurities may hinder the close fit between the baffles and the ground or door frame, thereby causing a decrease in sealing. Compared with the prior art, the cleaning and drying mechanism and the cleaning and sealing mechanism are arranged in coordination The upper surface and the front and rear sides of the flood-blocking lifting plate 13 can be cleaned by the scraper 204 and the scraper block 205. At the same time, the upper surface and the left and right sides of the flood-blocking lifting plate 13 are cleaned by blowing air through the swing pipe 310, thereby improving the cleaning effect of the flood-blocking lifting plate 13 and preventing the impurities on the side or upper surface of the flood-blocking lifting plate 13 from affecting the fitting effect between the flood-blocking lifting plate 13 and the vertical rod 11 and the bottom sealing rod 12, thereby ensuring the sealing of the flood-blocking lifting plate 13 when in use, thereby ensuring the flood prevention of the flood-blocking lifting plate 13 The one-way screw 203 is driven to rotate by a single driving source, so that the scraping work of the swing tube 310 and the blowing work of the air outlet head 311 can be performed simultaneously, which not only improves the cleaning effect of the flood control lifting plate 13, but also saves additional operation steps and reduces the installation of additional driving sources. Through the setting of the sliding rod 206, the reset spring 207 and the semicircular block 208, the scraper 204 and the scraper block 205 can scrape the flood control lifting plate 13 horizontally while realizing longitudinal reciprocating scraping. The brush can achieve the effect of multiple moving scraping brushes by moving the scraping brush once, saving time and steps. At the same time, through the arrangement of the reciprocating shaft 309, the torsion spring 312, the toggle rod 313 and the protrusion 314, the swing tube 310 and the air outlet head 311 can perform air blowing cleaning work while the air outlet head 311 can swing back and forth during the air blowing cleaning process, changing the direction and angle of the air blowing, which can more effectively blow away the stains from the surface, improve the thoroughness of the cleaning, and increase the angle and efficiency of the air blowing cleaning of the air outlet head 311.

[0039] Everything in the above example works like this:

[0040] In the initial state: one end of the one-way screw rod 203 is connected to the output end of the external drive motor, and when the flood control lifting plate 13 is in the storage state, the electric push rod 14 is in the tilted state;

[0041] When the flood control lifting plate 13 needs to be raised for protection, the electric push rod 14 is started, and the output end of the inclined electric push rod 14 pushes the flood control lifting plate 13 to rotate and lift until the flood control lifting plate 13 and the base frame 1 are in a vertical state. At this time, the flood control lifting plate 13 is lifted. Figure 1At this time, the front and rear sides of the flood-blocking lifting plate 13 are in contact with the inner side of the vertical rod 11, and the bottom of the flood-blocking lifting plate 13 is in contact with the top of the bottom sealing rod 12, thereby forming a vertical protective "wall" that can block external water accumulation or floods.

[0042] The following is the working process of cleaning the sealing mechanism:

[0043] When the flood control lifting plate 13 needs to be lifted, the external drive motor can be started and clicked to rotate to drive the one-way screw rod 203 to rotate. Because the one-way screw rod 203 is threadedly connected to the slider 202, and the slider 202 is slidably connected to the base frame 1, the rotation of the one-way screw rod 203 can drive the slider 202 to slide, thereby driving the inverted U-shaped scraper rod 201 to slide in the direction of the flood control lifting plate 13 through the sliding of the slider 202. Through the inverted U-shaped setting of the inverted U-shaped scraper rod 201, when the inverted U-shaped scraper rod 201 slides, the scraper plate 204 set at the bottom of the inverted U-shaped scraper rod 201 can scrape the top of the flood control lifting plate 13. At the same time, the two sides of the inverted U-shaped scraper rod 201 can scrape the sides of the flood control lifting plate 13, and in the process of the inverted U-shaped scraper rod 201 moving in the direction of the flood control lifting plate 13, the sliding rod 2 06 continuously approaches the semicircular block 208. When the sliding rod 206 approaches the semicircular block 208, the arc surface of the semicircular block 208 squeezes the arc surface of the sliding rod 206, so that the sliding rod 206 drives the scraper 204 to slide in the direction away from the semicircular block 208. At the same time, the reset spring 207 is compressed, and when the sliding rod 206 is away from the semicircular block 208, the resilience of the reset spring 207 can make the sliding rod 206 and the scraper 204 reset. Then, in the process of the inverted U-shaped scraper rod 201 moving toward the flood control lifting plate 13, through the cooperation of the sliding rod 206, the semicircular block 208 and the reset spring 207, the scraper 204 drives the scraper block 205 to reciprocately scrape the upper surface of the flood control lifting plate 13, so as to realize the synchronous horizontal scraping and longitudinal scraping.

[0044] Please refer to the above working process Figures 1 to 7 .

[0045] The following is the working process of cleaning and drying mechanism:

[0046] When the cleaning sealing mechanism is in use, the sliding of the inverted U-shaped scraper rod 201 can simultaneously drive the gear 305 to move. Since the gear 305 is meshed with the rack 301, the gear 305 can drive the connecting shaft 304 to rotate under the action of the rack 301 during the sliding of the inverted U-shaped scraper rod 201. When the connecting shaft 304 rotates, the reciprocating screw rod 306 can be driven to rotate at the same time. Since the reciprocating screw rod 306 is threadedly connected to the suction plate 307, and the suction plate 307 slides in the inflation chamber 302, when the inverted U-shaped scraper rod 201 slides, the reciprocating screw rod 306 rotates continuously under the cooperation of the gear 305 and the rack 301, thereby driving the suction plate 307 to slide back and forth in the inflation chamber 302. When the suction plate 307 slides toward the connecting hose 308, the air in the inflation chamber 302 can be squeezed through the connecting hose 308 and enter the swing tube 310, and finally blown out from the air outlet head 311. Figure 2 When the air outlet head 311 passes through the front and rear sides and the upper surface of the flood-blocking lifting plate 13, the dust particles on the front and rear sides of the upper surface of the flood-blocking lifting plate 13 can be blown away by the blown air flow, and when the suction plate 307 slides away from the connecting hose 308, the outside air can pass through the one-way air inlet valve 303 and then into the inflation chamber 302, thereby facilitating the continuous blowing of air out of the inflation chamber 302.

[0047] Furthermore, when the connecting shaft 304 rotates, the protrusion 314 is driven to rotate at the same time, so that the protrusion 314 is close to the top of the toggle rod 313, and the arc surface of the protrusion 314 squeezes the arc surface of the toggle rod 313, thereby driving the toggle rod 313 to rotate at an appropriate angle, and the torsion spring 312 is twisted. When the protrusion 314 is away from the toggle rod 313, the toggle rod 313 is reset under the twisting of the torsion spring 312, so that the toggle rod 313 can be continuously driven under the continuous rotation of the connecting shaft 304. The swinging of the reciprocating shaft 309 causes the reciprocating shaft 309 to rotate reciprocatingly, and then through the arrangement of the reciprocating shaft 309, the torsion spring 312, the toggle rod 313 and the protrusion 314, the reciprocating shaft 309 drives the swinging tube 310 and the air outlet head 311 to swing reciprocatingly. After the cleaning sealing mechanism first scrapes and cleans the inverted U-shaped scraper rod 201, and after the first cleaning by the scraper 204 and the scraper block 205, the surface of the flood control lifting plate 13 can be cleaned for the second time by the swinging tube 310 and the air outlet head 311, thereby improving the cleaning effect.

[0048] By coordinating the cleaning and drying mechanism and the cleaning and sealing mechanism, the upper surface and the front and rear sides of the flood-blocking lifting plate 13 can be cleaned by the scraper 204 and the scraper block 205, and at the same time, the airflow is blown out by the swing tube 310 to clean the upper surface and the left and right sides of the flood-blocking lifting plate 13, thereby improving the cleaning effect of the flood-blocking lifting plate 13 and preventing the impurities on the side or upper surface of the flood-blocking lifting plate 13 from affecting the fitting effect between the flood-blocking lifting plate 13 and the vertical rod 11 and the bottom sealing rod 12, thereby ensuring the sealing of the flood-blocking lifting plate 13 during use, and thus ensuring the flood prevention and protection effect of the flood-blocking lifting plate 13, and by driving the one-way screw rod 203 to rotate by a single driving source, the scraping work of the swing tube 310 and the blowing work of the air outlet head 311 can be performed simultaneously, which not only improves the cleaning effect of the flood-blocking lifting plate 13, but also saves additional operating steps and reduces the installation of additional driving sources.

[0049] At the same time, through the setting of the sliding rod 206, the return spring 207 and the semicircular block 208, the scraper 204 and the scraper block 205 can scrape the flood control lifting plate 13 horizontally while realizing longitudinal reciprocating scraping. By moving the scraper once, the effect of multiple moving scraping can be achieved, saving time and steps. At the same time, through the setting of the reciprocating shaft 309, the torsion spring 312, the toggle rod 313 and the protrusion 314, the swing tube 310 and the air outlet head 311 can perform air blowing cleaning work while the air outlet head 311 can swing back and forth during the air blowing cleaning process, changing the direction and angle of the air blowing, which can more effectively blow stains off the surface, improve the thoroughness of the cleaning, and increase the angle and efficiency of the air blowing cleaning of the air outlet head 311.

[0050] Please refer to the above working process Figures 1 to 7 .

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The underground flood baffle at the entrance and exit of a subway station comprises a base frame, one side of the base frame is symmetrically fixedly connected with a vertical rod, one side of the base frame is fixedly connected with a bottom sealing rod, one side of the base frame is rotatably connected with a flood control lifting plate, the bottom of the inner wall of the base frame is symmetrically rotatably connected with an electric push rod, one end of the electric push rod is rotatably connected with the flood control lifting plate, and the characteristics are: It also includes: a cleaning and sealing mechanism and a cleaning and air-drying mechanism, wherein the cleaning and air-drying mechanism is driven by the cleaning and sealing mechanism; The cleaning and sealing mechanism and the cleaning and air-drying mechanism are both used to clean the surface and sides of the flood control lifting plate; The cleaning and sealing mechanism comprises an inverted U-shaped scraper rod, which is slidably connected to the bottom of the inner wall of the base frame, a slider is fixedly connected to one side of the inverted U-shaped scraper rod, the slider is slidably connected to the base frame, a one-way screw rod is rotatably connected to one side of the base frame, and the one-way screw rod is threadedly connected to the slider; The bottom of the inverted U-shaped scraper rod is equidistantly connected to a scraper plate, one side of the scraper plate is equidistantly fixedly connected to a scraper block, one side of the scraper plate is fixedly connected to a sliding rod, and the sliding rod is slidably connected to the inverted U-shaped scraper rod; A return spring is fixedly connected between the sliding rod and the inverted U-shaped scraper rod, a semicircular block is fixedly connected to one side of the base frame at an equal distance, and a side of the sliding rod close to the semicircular block is set in an arc shape; The cleaning and drying mechanism includes a rack, which is symmetrically fixedly connected to one side of the base frame, and both sides of the inverted U-shaped scraper rod are provided with an air-filled cavity, and one side of the inverted U-shaped scraper rod is symmetrically fixedly connected with a one-way air intake valve, which is connected to the adjacent air intake cavity; A connecting shaft is rotatably connected to one side of the one-way air intake valve, a gear is fixedly connected to one end of the connecting shaft near the rack, the gear is meshed with the adjacent rack, a reciprocating screw is fixedly connected to one end of the connecting shaft, and the reciprocating screw is rotatably connected to one side of the inflation chamber.

2. The underground flood-proof baffle at the entrance and exit of a subway station according to claim 1, characterized in that: The outer surface of the reciprocating screw rod is threadedly connected with a suction plate, which is slidably connected to the inner surface of the inflation chamber. A connecting hose is fixedly connected to the bottom of the inflation chamber. Reciprocating shafts are rotatably connected to both sides of the inverted U-shaped scraper rod. A swing tube is fixedly connected between the reciprocating shafts, and the swing tube is connected to the connecting hose.

3. The underground flood-proof baffle at the entrance and exit of a subway station according to claim 2, characterized in that: An air outlet is fixedly connected to the outer surface of the swing tube at equal intervals, a torsion spring is fixedly connected between the reciprocating shaft and the inverted U-shaped scraper rod, a toggle rod is fixedly connected to the outer surface of the reciprocating shaft, the top of the toggle rod is arranged in an arc shape, and convex blocks are fixedly connected to the outer surface of the connecting shaft at equal intervals, and one end of the convex blocks is arranged in an arc shape.

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