Intelligent flood-proof device for entrance of space channel

Abstract

The invention discloses an intelligent anti-flooding device for a space channel entrance, and particularly relates to the field of underground garage flooding prevention. The intelligent anti-flooding device comprises a channel pavement and side walls on the two sides of the channel pavement, a first groove and a second groove are formed in the bottom of the channel pavement, and a grid plate is placed at the top of the first groove; a plurality of drainage holes are formed in the bottom of the first groove, and a cover plate is hinged to the top of the second groove. By arranging the water level sensor and the air inflation assembly, when the water level sensor senses that the water level is high, the air inflation assembly inflates the air bag so that the air bag can be expanded on the channel road surface, and water flow is blocked through the air bag so as to prevent the water flow from entering the underground garage; the anti-flooding device can be automatically inducted to be started, stopped, retracted and released according to water level changes under the condition that urban inland inundation flood flows backwards, so that the full-intelligent anti-flooding effect without manual operation is achieved, and the risk that the underground garage is rapidly submerged is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of flood prevention for underground garages, and more specifically, to an intelligent flood prevention device for an entrance of a space passage. Background Art

[0002] With more and more extreme weather occurring in recent years, many urban areas will experience urban flooding when encountering heavy rains. Since the city's flood drainage capacity is limited during heavy rains, the underground garages in many communities will be flooded or backflow.

[0003] Traditional flood prevention measures usually adopt the placement of waterproof facilities inside or around the garage before a rainstorm or when waterlogging has occurred. However, this measure arranges facilities such as sandbags or flood baffles in advance when waterlogging has not occurred, which not only takes up space, but also affects the overall appearance of the garage. These facilities usually need to occupy a certain ground area, which may hinder the normal parking and passage of vehicles, and also affect the normal use of the garage before waterlogging and after drainage. At the same time, if backflow and waterlogging have already occurred, it is very difficult for staff to temporarily move flood prevention items. Once the water level rises, moving heavy objects is not only dangerous but also inefficient. In addition, if the garage has been flooded, the movement of staff will also be restricted, and the transportation work is almost impossible to complete. When waterlogging has already occurred, it is often too late to temporarily move flood prevention items. Floods are usually sudden, leaving people with limited time to prepare, especially when heavy rains suddenly intensify. It is difficult to put temporary flood prevention facilities in place in time. A large amount of manpower is required to move flood prevention facilities before and after each waterlogging. After drainage is completed, manpower is required to move the flood prevention facilities away again. This process is time-consuming and labor-intensive, increasing management costs and manpower burden. Summary of the invention

[0004] The intelligent flood prevention device for the entrance of a spatial channel provided by the present invention aims to solve the following problems: although the existing flood prevention measures can alleviate the impact of waterlogging to a certain extent, in the case where waterlogging has not occurred, the arrangement of facilities such as sandbags or flood baffles in advance not only takes up space, but also affects the overall appearance of the garage. In addition, when backflow and waterlogging have already occurred, it is very difficult for staff to temporarily carry flood prevention items. Once the water level rises, carrying heavy objects is not only dangerous but also inefficient. In addition, if the garage has been flooded, the movement of staff will also be restricted, and the carrying work will be almost impossible to complete. In addition, a large amount of manpower is required to carry flood control facilities before and after each waterlogging occurs. After the drainage is completed, manpower is required again to move the flood control facilities away. This process is both time-consuming and labor-intensive, increasing management costs and manpower burden.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent flood prevention device for a space channel entrance, comprising: a channel pavement and side walls on both sides of the channel pavement, a groove 1 and a groove 2 are arranged at the bottom of the channel pavement, a grid plate is placed at the top of the groove 1, and a plurality of drainage holes are opened at the bottom of the groove 1, and a cover plate is hinged at the top of the groove 2;

[0006] The inner wall of groove one is provided with a plurality of water level sensors in the vertical direction, and the plurality of water level sensors are evenly arranged at equal intervals. A flood prevention mechanism is provided in groove two, and the flood prevention mechanism includes an air bag, which is provided in groove two, and an inflatable component is provided in groove two, and the inflatable component is used to inflate and deflate the air bag. The flood prevention mechanism inflates the air bag through the inflatable component to block rainwater.

[0007] In a preferred embodiment, a pumping assembly is provided in the groove 1, and the pumping end of the pumping assembly extends to the top of the passage pavement through the mesh plate and is introduced into other drainage pipes or wells.

[0008] In a preferred embodiment, a connecting piece is fixedly connected to the bottom of the cover plate, and one end of the connecting piece away from the cover plate is fixedly arranged on the airbag.

[0009] In a preferred embodiment, a limiting assembly is provided in groove two, and the limiting assembly includes a limiting member and a fixing member. The fixing member is fixedly provided on the bottom inner wall of groove two, and the fixing member is used to fix the airbag in groove two. The cover plate is hingedly provided at the top opening of groove two through the limiting member, and the limiting member is used to limit the opening angle of the cover plate.

[0010] In a preferred embodiment, a barrier assembly is provided in the groove 2, and the barrier assembly includes a winch, the winch is provided at the opening of the groove 2, and a roller curtain is wound around the winch, and the end of the roller curtain away from the winch is connected to the airbag.

[0011] In a preferred embodiment, the width of the airbag is greater than the width of the passage road surface, and flexible parts are provided at the contact portions of both sides of the airbag with the side walls.

[0012] In a preferred embodiment, a sealing assembly is provided on the side wall, the sealing assembly includes a side groove, the side groove is on the side wall where the two side walls are close to each other, and sealing members are provided in both side grooves, and both sides of the airbag are sealed and fitted with the sealing members.

[0013] In a preferred embodiment, a protection component is disposed in the side groove, the protection component includes a protection baffle, and the protection component is used to protect the seal when the airbag is not inflated.

[0014] In a preferred embodiment, the protective baffle is hingedly arranged in the side groove, and a horizontal bar is arranged on the top of the airbag, and the horizontal bar is used to contact and lift the protective baffle through the horizontal bar when the airbag is inflated.

[0015] In a preferred embodiment, a stopper is further provided in the side groove, and the protective baffle is in movably contact with the stopper, and the stopper is used to limit the protective baffle so that the protective baffle remains in an inclined state when the airbag is not inflated.

[0016] The beneficial effects of the present invention are:

[0017] The present invention provides a water level sensor and an inflation component, so that when the water level sensor senses a high water level, the inflation component inflates the airbag to expand the airbag on the passage road surface, and the water flow is blocked by the airbag to prevent the water from entering the underground garage. In the case of urban waterlogging and backflow, the flood prevention device can be automatically sensed and started and stopped and retracted and deployed according to water level changes, so as to achieve a fully intelligent flood prevention effect without the need for human operation, thereby reducing the risk of rapid flooding of the underground garage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the daily uninflated state of the present invention.

[0019] Figure 2 The inflatable molding state of the present invention is schematically shown Figure 1 .

[0020] Figure 3 It is a schematic diagram of the front cross-sectional structure of the present invention.

[0021] Figure 4 The inflatable molding state of the present invention is schematically shown Figure 2 .

[0022] Figure 5 It is a partial structural schematic diagram of the present invention in the inflation molding state.

[0023] Figure 6 for Figure 3 Enlarged view of part A.

[0024] Figure 7 It is a schematic diagram of the sealing assembly of the present invention in a normal state.

[0025] Figure 8 It is a schematic diagram of the sealing component of the present invention in the inflated molding state.

[0026] Fig. 9 for Figure 7 Enlarged view of part B.

[0027] Fig.10 for Figure 8Magnified view of part C.

[0028] Fig.11 It is a flow chart of the device of the present invention.

[0029] The accompanying drawings are marked as follows: 1. passage pavement; 2. side wall; 3. groove one; 31. grid plate; 32. drainage hole; 4. groove two; 41. cover plate; 411. connector; 5. water level sensor; 6. pumping assembly; 7. flood prevention mechanism; 71. air bag; 711. flexible part; 72. inflatable assembly; 8. limit assembly; 81. fixing part; 82. limit member; 9. barrier assembly; 91. winch; 92. roller shutter; 10. sealing assembly; 101. side groove; 102. sealing member; 11. protective assembly; 111. protective partition; 112. block; 113. horizontal bar. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0031] Refer to the instruction manual Figures 1 to 11 , an intelligent flood prevention device for a space channel entrance, comprising: a channel pavement 1 and side walls 2 on both sides of the channel pavement 1, a groove 1 3 and a groove 2 4 are arranged at the bottom of the channel pavement 1, a grid plate 31 is placed on the top of the groove 1 3, and a plurality of drainage holes 32 are opened at the bottom of the groove 1 3, and a cover plate 41 is hinged on the top of the groove 2 4;

[0032] The inner wall of the groove 1 3 is provided with a plurality of water level sensors 5 in the vertical direction, and the plurality of water level sensors 5 are evenly arranged at equal intervals. A flood prevention mechanism 7 is provided in the groove 2 4 , and the flood prevention mechanism 7 includes an air bag 71 , and the air bag 71 is provided in the groove 2 4 , and an inflatable component 72 is provided in the groove 2 4 , and the inflatable component 72 is used to inflate and deflate the air bag 71 , and the flood prevention mechanism 7 inflates the air bag 71 through the inflatable component 72 to block rainwater.

[0033] It should be noted that if Figure 1 and Figure 2 As shown, the arrow direction is the water flow direction, the inflation component 72 is an inflation pump, and the intelligent flood prevention device is also provided with a controller, which can be a PLC controller, and the inflation pump is controlled by the PLC controller to inflate and deflate.

[0034] It should also be noted that an air pressure safety valve is provided in the airbag 71, which automatically releases excess gas when the internal air pressure exceeds a preset value to prevent the airbag 71 from being damaged due to overpressure. The air pump can adopt multiple linked air pumps, which predict the water level conditions by transmitting water level data (water level line and rising rate) in real time according to the water level sensor 5, and thereby control the inflation rate of the air pump and the number of intelligent start-stop air pumps.

[0035] The specific implementation scenario is as follows: when rainwater enters the channel from the direction of water flow, it will enter the groove 3 through the grid plate 31. Since a drainage hole 32 is provided at the bottom of the groove 3, when the amount of rainwater is small, it can be directly discharged from the drainage hole 32. When the amount of rainwater is large or the municipal drainage pipe has been blocked by waterlogging, water will accumulate in the groove 3 and cannot be discharged. At this time, when the low water level sensor 5 senses that the water level in the groove 3 has reached a low value, a signal is transmitted to the PLC controller to determine whether the highest water level sensor 5 has been triggered. If the highest water level sensor 5 has not sensed the water level, there is no need to trigger the intelligent flood prevention device. When the highest water level sensor 5 senses the water level, the intelligent flood prevention device will be triggered. When the water level sensor 5 senses that the water level in the groove 3 has reached a high value, the water level sensor 5 transmits a signal to the PLC controller, which controls the air pump to inflate the airbag 71 through the PLC controller, so that the airbag 71 is inflated and expanded, and the cover plate 41 hingedly arranged on the top of the groove 24 is pushed open, so that the airbag 71 can expand and extend out of the groove 24, so that the airbag 71 can block rainwater and prevent rainwater from entering the underground garage from the passage pavement 1. In the case of urban waterlogging and flooding backflow, the anti-flooding device can be automatically sensed and started and stopped and retracted and deployed according to water level changes, so as to achieve a fully intelligent anti-flooding effect without human operation, thereby reducing the risk of the underground garage being quickly flooded.

[0036] It should also be noted that when the water level drops, the airbag 71 needs to be deflated and shrunk back into groove 24 to cope with the next flood backflow. However, when the airbag 71 is in an inflated state to block the water flow, the water flow will enter groove 24 through the opening position of groove 24. However, when the water level drops, there will still be accumulated water in groove 24. If the airbag 71 is deflated and shrunk back at this time, the accumulated water will affect the deflation and deflation of the airbag 71. For this purpose, a drainage hole can be opened at the bottom of groove 24 so that the accumulated water in groove 24 can be discharged through the drainage hole to avoid the problem that the accumulated water in groove 24 affects the deflation and deflation of the airbag 71 into groove 24.

[0037] For further information, please refer to the attached manual. Figure 3 A pumping assembly 6 is arranged in the groove 1 3 , and the pumping end of the pumping assembly 6 extends to the top of the passage pavement 1 through the grid plate 31 and is introduced into other drainage pipes or wells.

[0038] It should be noted that the number of water level sensors 5 is at least three, and the pumping component 6 is a submersible pump. When the middle water level sensor 5 senses that the water level in the groove 3 has reached the median value, the water level sensor 5 transmits a signal to the PLC controller, and the PLC controller controls the submersible pump to pump water, thereby playing a role in auxiliary drainage.

[0039] It should also be noted that the submersible pump can adopt a larger submersible pump, and a circle of pipes can be arranged around the bottom of the groove 3, and a filtering structure such as a nylon mesh can be arranged outside the pipe to increase the pumping efficiency and prevent leaves, sand and stones from being sucked in and causing machine failure.

[0040] For further information, please refer to the attached manual. Figure 6 A connecting piece 411 is fixedly connected to the bottom of the cover plate 41 , and one end of the connecting piece 411 away from the cover plate 41 is fixedly arranged on the airbag 71 .

[0041] It should be noted that the connecting piece 411 is a soft pull rope. When the low water level sensor 5 senses that the water level in the groove 3 has reached a low value, the signal is transmitted to the PLC controller to determine whether the highest water level sensor 5 has been triggered. If the highest water level sensor 5 has sensed an excessive water level, it is necessary to control the intelligent flood prevention device to reset so that it can be used again. Therefore, when the low water level sensor 5 senses that the water level in the groove 3 has reached a low value, if the highest water level sensor 5 has sensed an excessive water level, it is necessary to control the inflation pump through the PLC controller to extract the gas in the airbag 71. When the airbag 71 is deflated and deflated into the groove 2 4, the cover plate 41 will be pulled to the covered state by the soft pull rope, and reset by the cover plate 41, so that it does not need to be manually reset, and does not affect the normal passage of vehicles.

[0042] For further information, please refer to the attached manual. Figure 4 and Figure 5 A limiting assembly 8 is provided in the groove 24, and the limiting assembly 8 includes a limiting member 82 and a fixing member 81. The fixing member 81 is fixedly provided on the bottom inner wall of the groove 24, and the fixing member 81 is used to fix the airbag 71 in the groove 24. The cover plate 41 is hingedly provided at the top opening of the groove 24 through the limiting member 82, and the limiting member 82 is used to limit the opening angle of the cover plate 41.

[0043] It should be noted that the limiting member 82 is a hinge with a 90-degree limit, and the fixing member 81 is a hook. When the airbag 71 pushes the cover plate 41 open, the cover plate 41 can provide support for the airbag 71 to prevent the airbag 71 from tilting and displacement, thereby ensuring the water-blocking effect of the airbag 71. A hook is provided on the bottom inner wall of the groove 2 4, and the airbag 71 is connected and fixed to the bottom inner wall of the groove 2 4 by the hook, so that the airbag 71 can be limited to prevent the airbag 71 from displacement. The limiting member 82 limits the cover plate 41, so that the cover plate 41 can provide support for the airbag 71, and the fixing member 81 limits the airbag 71, which can prevent the airbag 71 from displacement during use, thereby effectively avoiding the problem of affecting the water-blocking effect due to the displacement of the airbag 71 during use.

[0044] In the above technical solution, when rainwater enters the channel from the direction of water flow, the rainwater often carries some floating objects, such as garbage like branches. When the airbag 71 is used to block the rainwater and prevent it from entering the channel, the rainwater carries sharp branches and other debris to the channel entrance and is blocked by the airbag 71. If the sharp branches and other debris pierce the airbag 71 at this time, the intelligent flood prevention device will fail. For this reason, the present invention proposes a blocking component 9 for protecting the airbag 71 to prevent the airbag 71 from being pierced by sharp branches and other debris. At the same time, it has a certain water-blocking effect and a function of limiting the tilt displacement of the top of the airbag 71.

[0045] For details, please refer to the attached manual. Figure 6 A barrier assembly 9 is arranged in the groove 2 4 , and the barrier assembly 9 includes a winch 91 , which is arranged at the opening of the groove 2 4 , and a roller curtain 92 is wound around the winch 91 , and one end of the roller curtain 92 away from the winch 91 is connected to the airbag 71 .

[0046] It should be noted that when the airbag 71 is inflated, the winch 91 releases the roller curtain 92, and when the airbag 71 expands, the roller curtain 92 will unfold, so that the roller curtain 92 protects the side of the airbag 71 close to the water inlet direction, thereby preventing rainwater from carrying sharp branches and other debris to the entrance of the channel and causing the airbag 71 to be pierced. At the same time, it has a certain water-blocking effect and limits the tilting displacement of the top of the airbag 71.

[0047] For further information, please refer to the attached manual. Figure 5 and Figure 7 The width of the airbag 71 is greater than the width of the passage road surface 1, and flexible parts 711 are provided on both sides of the airbag 71 at the contact parts with the side walls 2.

[0048] It should be noted that the flexible member 711 can be a rubber pad. Since the width of the airbag 71 is not less than the width of the passage pavement 1, when the airbag 71 is inflated, it will squeeze the rubber pad, making the airbag 71 fit more closely to the wall surface of the side wall 2, thereby increasing the friction and making the structure more stable and less prone to tilting, and reducing the possibility of water seeping along the edge seams.

[0049] However, in the above technical solution, although rubber pads are provided at the contact parts between the two sides of the airbag 71 and the side wall 2 to reduce the possibility of water seepage along the edge seams, when the airbag 71 is inflated, the internal gas pressure increases, which will cause the airbag 71 to expand. As the volume of the airbag 71 increases, it will exert greater pressure on the surrounding structure. If the airbag 71 expands unevenly, this pressure change will cause the contact between the airbag 71 and the side wall 2 to become unstable, which will easily cause water seepage along the edge seams. For this reason, the present invention also proposes a sealing assembly 10, which is used to provide a continuous sealing effect during the process of dynamic pressure changes caused by the inflation of the airbag 71 to prevent water seepage caused by dynamic changes.

[0050] For details, please refer to the attached manual. Figures 7 to 10 A sealing assembly 10 is provided on the side wall 2, and the sealing assembly 10 includes a side groove 101. The side groove 101 is on the side wall where the two side walls 2 are close to each other, and sealing members 102 are provided in both side grooves 101. Both sides of the airbag 71 are sealed and fitted with the sealing members 102.

[0051] It should be noted that the sealing member 102 is a sealing strip. When the airbag 71 is inflated, since the total width of the airbag 71 is greater than the width of the passage pavement 1, the two sides of the airbag 71 can extend into the corresponding side grooves 101, so that the airbag 71 can fit tightly with the sealing strip and seal, thereby achieving a good sealing and anti-water seepage effect.

[0052] In the above technical solution, a side groove 101 is opened on the side wall 2, and a sealing strip is arranged in the side groove 101 to achieve the effect of sealing and preventing water seepage. However, since the side groove 101 is usually opened, some daily garbage and other debris may enter the side groove 101, which will cause the garbage or debris to hinder the sealing effect during use and cause water seepage problems. For this reason, the present invention also proposes a protective component 11, which is used to protect the seal 102 in daily life to prevent garbage or debris from entering the side groove 101.

[0053] For details, please refer to the attached manual. Figures 7 to 10A protection component 11 is arranged in the side groove 101, and the protection component 11 includes a protection baffle 111. The protection component 11 is used to protect the seal 102 when the airbag 71 is not inflated. The protection baffle 111 is hingedly arranged in the side groove 101, and a horizontal bar 113 is arranged on the top of the airbag 71. The horizontal bar 113 is used to contact and lift the protection baffle 111 through the horizontal bar 113 when the airbag 71 is inflated.

[0054] It should be noted that the hinged protective baffle 111 prevents garbage or debris from entering the side groove 101, and when the airbag 71 is inflated, the horizontal bar 113 can contact the bottom of the protective baffle 111 and lift the protective baffle 111, so that the protective baffle 111 can be rotated and opened without hindering the inflation of the airbag 71.

[0055] Refer to the instruction manual Figures 7 to 10 A stopper 112 is also provided in the side groove 101, and the protective baffle 111 is in active contact with the stopper 112. The stopper 112 is used to limit the protective baffle 111 so that the protective baffle 111 remains in an inclined state when the airbag 71 is not inflated.

[0056] It should be noted that by arranging a stopper 112 in the side groove 101, the stopper 112 can limit the protective baffle 111, so that the protective baffle 111 can maintain a tilted state during daily use. The tilt of the protective baffle 111 can facilitate the opening operation of the protective baffle 111 when the airbag 71 is inflated.

[0057] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An intelligent flood prevention device for a space channel entrance, characterized in that: include: A passage pavement (1) and side walls (2) on both sides of the passage pavement (1), wherein the bottom of the passage pavement (1) is provided with a groove 1 (3) and a groove 2 (4), a mesh plate (31) is placed on the top of the groove 1 (3), and a plurality of drainage holes (32) are opened at the bottom of the groove 1 (3), and a cover plate (41) is hingedly connected to the top of the groove 2 (4); The inner wall of the groove one (3) is provided with a plurality of water level sensors (5) in the vertical direction, and the plurality of water level sensors (5) are evenly arranged at equal intervals. The groove two (4) is provided with a flood prevention mechanism (7), and the flood prevention mechanism (7) comprises an air bag (71), and the air bag (71) is provided in the groove two (4). The groove two (4) is provided with an inflatable component (72), and the inflatable component (72) is used to inflate and deflate the air bag (71). The flood prevention mechanism (7) inflates the air bag (71) through the inflatable component (72) to block rainwater.

2. The intelligent flood prevention device for space channel entrance according to claim 1, characterized in that: A connecting piece (411) is fixedly connected to the bottom of the cover plate (41), and one end of the connecting piece (411) away from the cover plate (41) is fixedly arranged on the airbag (71).

3. The intelligent flood prevention device for space channel entrance according to claim 2, characterized in that: A limiting assembly (8) is arranged in the second groove (4), and the limiting assembly (8) comprises a limiting member (81) and a fixing member (82). The fixing member (81) is fixedly arranged on the bottom inner wall of the second groove (4), and the fixing member (81) is used to fix the airbag (71) in the second groove (4). The cover plate (41) is hingedly arranged at the top opening of the second groove (4) through the limiting member (82), and the limiting member (82) is used to limit the opening angle of the cover plate (41).

4. The intelligent flood prevention device for space channel entrance according to claim 3, characterized in that: A barrier component (9) is arranged in the second groove (4), and the barrier component (9) comprises a winch (91). The winch (91) is arranged at the opening of the second groove (4), and a rolling curtain (92) is wound around the winch (91). The end of the rolling curtain (92) away from the winch (91) is connected to the airbag (71).

5. The intelligent flood prevention device for space channel entrance according to claim 4, characterized in that: The width of the airbag (71) is greater than the width of the passage road surface (1), and flexible parts (711) are provided at the contact parts of both sides of the airbag (71) with the side walls (2).

6. The intelligent flood prevention device for space channel entrance according to claim 5, characterized in that: A sealing assembly (10) is provided on the side wall (2), and the sealing assembly (10) comprises a side groove (101). The side groove (101) is on a side wall where the two side walls (2) are close to each other, and sealing members (102) are provided in both side grooves (101). Both sides of the airbag (71) are sealed and fitted with the sealing members (102).

7. The intelligent flood prevention device for space channel entrance according to claim 6, characterized in that: A pumping assembly (6) is arranged in the groove one (3), and the pumping end of the pumping assembly (6) extends to the top of the passage pavement (1) through the grid plate (31) and is introduced into other drainage pipes or wells.

8. The intelligent flood prevention device for space channel entrance according to claim 7, characterized in that: A protection component (11) is arranged in the side groove (101), and the protection component (11) comprises a protection baffle (111). The protection component (11) is used to protect the sealing component (102) when the airbag (71) is not inflated.

9. The intelligent flood prevention device for space channel entrance according to claim 8, characterized in that: The protective baffle (111) is hingedly arranged in the side groove (101), and a horizontal bar (113) is arranged on the top of the airbag (71). The horizontal bar (113) is used to contact the protective baffle (111) through the horizontal bar (113) and lift up the protective baffle (111) when the airbag (71) is inflated.

10. The intelligent flood prevention device for space channel entrance according to claim 9, characterized in that: A stopper (112) is also provided in the side groove (101), and the protective baffle (111) is in active contact with the stopper (112). The stopper (112) is used to limit the position of the protective baffle (111), so that the protective baffle (111) remains in an inclined state when the airbag (71) is not inflated.

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