Water-impermeable structures and systems

Abstract

To provide an impervious structure and an impervious system which can be built without large scaled construction and have compact configurations.SOLUTION: An impervious structure 100 has: a strip-shaped lid 30 extending in a longitudinal direction of a strip-shaped recess 20 provided on a road surface; multiple links 41 supporting the lid 30; and an impervious material 60 partially fixed to the lid 30. When the links 41 are folded, the impervious structure 100 is accommodated in the recess 20 and the lid 30 closes an opening of the recess 20, and when the links 41 are unfolded, the lid 30 is lifted upward from the recess 20 and the impervious material 60 is extended.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a water-blocking structure and a water-blocking system. [Background technology]

[0002] Heavy rains, typhoons, and the resulting flooding of rivers cause water levels to rise on the streets, leading to frequent natural disasters in which water seeps in through first-floor entrances to houses and apartment buildings, and aboveground entrances to underground infrastructure such as subways and underground shopping malls, causing flooding. This flooding damage is also said to be a man-made disaster caused by global warming. Measures to prevent water from seeping in and flooding include piling up sandbags at the entrances and installing waterstops. However, all of these measures have the problem that they require manual installation, and when the installation area is wide, many manpower is required and the installation work takes time, making it difficult to take flood prevention measures quickly.

[0003] Here, Patent Document 1 proposes a water stop structure for a passageway that allows people to easily pass through when water is stopped. This water stop structure for a passageway includes a base body that is placed in a recess formed in the passageway, and a road surface body that is housed in the base body. The road surface body includes treads that people can walk on and water stop plates that connect to the edges of the treads in the walking direction, and is housed in the base body so that the upper surface of the treads is flush with the road surface of the passageway. By lifting the treads of the road surface body housed in the base body, the water stop plate is placed on the road surface of the passageway in the shape of a vertical wall or slope, and the base body is equipped with a hydraulic cylinder that raises and lowers the treads. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-143501 A Summary of the Invention [Problem to be solved by the invention]

[0005] The water-stopping structure for a passageway described in Patent Document 1 is configured so that the tread is completely contained within the base body, and therefore the construction of the recess to completely contain the tread and the base body is extensive, and the water-stopping structure for a passageway must also be large-scale.

[0006] The present invention has been made in consideration of the above problems, and aims to provide a waterproof structure and waterproof system that are compact in configuration and do not require large-scale construction. [Means for solving the problem]

[0007] In order to achieve the above object, one aspect of the water impermeable structure according to the present invention is to A waterproof structure comprising a belt-shaped lid extending in the longitudinal direction of a belt-shaped recess provided in a road surface, a plurality of links supporting the lid, and a waterproof material partially fixed to the lid, When the link is folded, the water-blocking structure is accommodated in the recess and the lid closes the opening of the recess; When the link is deployed, the cover is lifted upward from the recess, thereby spreading the waterproof material.

[0008] According to this aspect, the band-shaped lid can be raised and lowered by folding and unfolding multiple links, and the waterproofing material, a portion of which is fixed to the lid, is accommodated in the recess as the lid moves up and down and is unfolded above the recess, thereby making it possible to form a waterproofing structure with a simple configuration while eliminating the need for large-scale construction of a waterproofing structure that includes a band-shaped recess.

[0009] In addition, it is preferable that the links are configured so that their height when deployed (the height of the spread waterproof material) can be adjusted freely, and it is desirable that the links be deployed and the waterproof material spread to a height that allows for a safety margin for the expected water height.

[0010] Furthermore, the road surfaces on which the waterproof structure of this embodiment is installed are road surfaces such as above-ground entrances and underground entrances leading to underground infrastructure such as subways, and underpass entrances. When there is a risk of flooding or inundation, the inlet openings of these various entrances and other entrances are blocked with the enlarged waterproof material to prevent water from entering, and when there is no risk of flooding or inundation at all times, the waterproof structure is completely contained in the recess, allowing the entrances and other entrances to be used normally.

[0011] The multiple links can be deployed or folded manually or automatically. Even if it is done manually, the links can be deployed, for example, by lifting a lid contained in a recess, and the waterproofing material can be spread at the same time, making it possible to quickly install the waterproof structure at an entrance / exit with a small number of personnel.

[0012] In another aspect of the water impermeable structure according to the present invention, The four links form a pantograph, and a plurality of the pantographs are folded and deployed in the longitudinal direction.

[0013] According to this aspect, the four links form a pantograph, and the multiple pantographs are deployed above the recess, so that the belt-shaped lid can be raised vertically upward in response to the deployment of the pantograph, and the water-shielding material can be stably supported by the lid and the pantograph. Here, the number of pantographs provided can range from one to multiple, depending on the longitudinal length of the belt-shaped lid.

[0014] In another aspect of the water impermeable structure according to the present invention, The two links are assembled in an X shape around a pivot axis to form an X-shaped body, and a plurality of the X-shaped bodies are folded in the longitudinal direction and then unfolded.

[0015] According to this embodiment, two links are assembled in an X shape around a pivot axis to form an X-shaped body, and multiple X-shaped bodies are deployed above the recess. By doing so, the band-shaped lid can be raised vertically upward as the X-shaped bodies deploy, and the water-proofing material can be stably supported by the lid and the X-shaped bodies.

[0016] In another aspect of the water impermeable structure according to the present invention, The plurality of links are characterized in that the plurality of links are folded and unfolded in the longitudinal direction by rotating in the longitudinal direction.

[0017] According to this aspect, multiple links rotate in the longitudinal direction of the recess and are deployed and folded, thereby making it possible to store the waterproofing material in the recess and deploy it above the recess using links of as simple a configuration as possible.

[0018] In another aspect of the water impermeable structure according to the present invention, The waterproof material is either a waterproof sheet or a folding plate in which a plurality of rectangular pieces are connected to each other so as to be freely foldable, The water-shielding material is accommodated in the recess in a wound state, When the link is deployed, the waterproof material in a wound position is lifted upward and spread out.

[0019] According to this aspect, since the waterproof material is accommodated in the recess in a wound state, the dimensions of the recess can be made as small as possible. Furthermore, when the link is deployed, the waterproof material in the wound state is unwound and spread upward, so that the waterproof material can be spread smoothly.

[0020] In another aspect of the water impermeable structure according to the present invention, A flexible stiffening material that imparts water pressure resistance to the waterproof material is attached to the left and right ends of the waterproof material, The stiffening material is characterized in that it comprises a waterproof gasket.

[0021] According to this aspect, flexible stiffening materials that impart water pressure resistance to the waterproof material are attached to the left and right ends of the waterproof material, making it possible to form a waterproof material that is flexible yet capable of resisting water pressure. Also, since the stiffening materials are flexible, they can be wound together with the waterproof material and housed in a recess. Furthermore, since the stiffening materials are provided with a waterproof gasket (for example, built-in), the waterproof gasket can come into contact with the opening wall surface of the entrance / exit of a building around the waterproof structure to form a seal structure, making it possible to suppress water seepage between the end of the waterproof structure and the opening wall surface of the entrance / exit.

[0022] In another aspect of the water impermeable structure according to the present invention, The waterproof material is characterized in that a sign saying "Road Closed" or an equivalent sign is attached to the waterproof material.

[0023] According to this aspect, in particular, by providing a road closure or a similar sign in the waterproof material of the waterproof structure provided at entrances to public facilities such as underground infrastructure and underpasses, it is possible to prevent people from flowing into underground infrastructure that is at risk of flooding while suppressing water intrusion into the underground infrastructure. Here, "a sign equivalent to a road closure" includes a sign indicating a predicted time period for road closure, a detour route, and the like.

[0024] Another aspect of the water impermeable structure according to the present invention is An actuator for rotating the link is further provided, The actuator is characterized in that the link is folded and unfolded.

[0025] According to this aspect, the actuator that displaces (rotates, raises and lowers) the link automatically controls the displacement of the link and the cover, so that in an emergency when flooding is imminent, the position can be changed to deploy the link and the waterproofing material in the shortest possible time. Here, the actuator includes various forms such as an electric motor, a motor including a servo motor or a linear motor, a hydraulic cylinder, a pneumatic cylinder, a water pressure cylinder, an electric cylinder, etc.

[0026] Moreover, one aspect of the waterproof system according to the present invention is The water impermeable structure; A user terminal, The actuator includes a first communication unit and an actuator drive unit. The user terminal is characterized by including a second communication unit capable of wirelessly communicating with the first communication unit, and a drive control unit that executes drive control of the actuator drive unit.

[0027] According to this aspect, the waterproof structure is equipped with actuators that automatically control the displacement of the links and waterproof material, and by performing drive control of the actuator via wireless communication from a user terminal, it becomes possible to quickly control the displacement of the links and waterproof material of the waterproof structure under management from, for example, a remote underground infrastructure management facility or a management facility for a building or condominium, and to deploy the waterproof material.

[0028] In another aspect of the water shielding system according to the present invention, The user terminal is characterized in that it further includes an information acquisition unit that acquires heavy rain information or flood information for the area in which the waterproof structure is installed.

[0029] According to this aspect, by further comprising an information acquisition unit that acquires heavy rain information or flood information for the area in which the waterproof structure is installed, it is possible to reliably change the posture by deploying the links and spreading the waterproof material before flooding occurs in underground infrastructure, etc. that is to be prevented from flooding. Effect of the Invention

[0030] As can be understood from the above description, the waterproof structure and waterproof system of the present invention can eliminate the need for large-scale construction and can provide a waterproof structure and waterproof system with a compact configuration. [Brief description of the drawings]

[0031] [Figure 1]FIG. 2 is a front view of the waterproof structure according to the first embodiment, showing both a normal state and an emergency state. [Diagram 2] FIG. 4 is an enlarged view of an end portion of the waterproof structure. [Diagram 3] FIG. 11 is a perspective view showing another example of a waterproof material. [Figure 4] 11A and 11B are diagrams showing other examples of the sealing structure between the waterproof material and the wall surface. [Diagram 5] FIG. 11 is a front view of a waterproof structure according to a second embodiment, showing both a normal state and an emergency state. [Figure 6] A figure showing the overall configuration of an example of a waterproofing system according to an embodiment, as well as an example of the functional configuration of an actuator that changes the posture of a waterproofing structure and a user terminal. [Figure 7] FIG. 2 is a diagram illustrating an example of a hardware configuration of a user terminal. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0032] Hereinafter, examples of a waterproof structure and a waterproof system according to each embodiment will be described with reference to the accompanying drawings. In this specification and the drawings, substantially identical components are designated by the same reference numerals, and duplicated descriptions may be omitted.

[0033] [Water-impermeable structure according to the first embodiment] First, an example of a waterproof structure according to the first embodiment will be described with reference to Fig. 1 and Fig. 2. Fig. 1 is a front view of the waterproof structure according to the first embodiment, showing both a normal state and an emergency state, and Fig. 2 is an enlarged view of an end of the waterproof structure. In Fig. 1, a pantograph 40 is present on the rear side of the waterproof material 60, but to facilitate understanding, the waterproof structure 100 in an emergency is shown by a solid line instead of a dashed line, and the waterproof structure 100 in a normal state is shown by a dashed line.

[0034] The waterproof structure 100 in the illustrated example is provided on the road surface of a ground-level entrance 10 of a subway. Here, the waterproof structure 100 may also be provided on the road surface of a ground floor or basement entrance of a building such as a building, an apartment building, or a detached house, a ground-level entrance or an underground entrance leading to an underground infrastructure such as an underground shopping mall other than a subway, an entrance of an underpass, or the like.

[0035] The ground entrance 10 of the subway is a gate-shaped entrance made of reinforced concrete, and has left and right walls 11 made of reinforced concrete and a foundation 12 supporting the walls 11, with an entrance opening 13 leading to the subway form exposed above ground.

[0036] The waterproof structure 100 is accommodated in a band-shaped recess 20 formed by digging out a part of the road surface of the concrete foundation 12, and is configured to be deployed upward from the recess 20. The band-shaped recess 20 extends in the longitudinal direction, that is, in the direction connecting the left and right walls 11.

[0037] The waterproof structure 100 comprises a band-shaped lid 30 extending in the longitudinal direction of the recess 20 , a plurality of links 41 supporting the lid 30 , and a waterproof material 60 whose upper end is fixed to the lid 30 .

[0038] The band-shaped lid 30 is made of metal or hard resin, and the lid 30 in the illustrated example is made of channel steel as shown in Fig. 2. As shown by the dashed dotted line in Fig. 1, when the waterproof structure 100 is accommodated in the recess 20, the flat surface (of the flange) of the lid 30 closes the upper opening of the recess 20 and is configured to be flush with the road surface around the recess 20.

[0039] Four links 41 form a pantograph 40, and the legs of a plurality of pantographs 40 (two in the illustrated example) are fixed to the recess 20, and the top is fixed to the underside of the lid 30 to support the lid 30. The pantograph 40 is accommodated in the recess 20 by folding in the longitudinal direction of the recess 20, and is unfolded upward to push up the lid 30 in the X3 direction.

[0040] The pantograph 40 has an upper link mechanism and a lower link mechanism consisting of a pair of links 41 rotatably attached to a lower pivot shaft 42 fixed to the recess 20 and an upper pivot shaft 43 fixed to the lid 30, and the upper link mechanism and the lower link mechanism are rotatably attached to separate left and right pivot shafts 44. A screw rod 45 is attached to these left and right pivot shafts 44, and the upper link mechanism and the lower link mechanism can be expanded and contracted by rotating the screw rod 45.

[0041] A motor 50 (one example of an actuator) is attached to one end of the screw rod 45, and the screw rod 45 rotates in the X1 direction when driven by the motor 50, and the upper link mechanism and the lower link mechanism move toward the center in the X2 direction in response to the rotation of the screw rod 45, changing the position from the normal folded state shown by the dashed dotted line to the unfolded state shown by the solid line, thereby lifting the lid 30 upward in the X3 direction. The two motors 50 are rotated synchronously.

[0042] Here, the actuator 50 may be a motor as shown in the figure, or a cylinder mechanism such as a hydraulic cylinder, an air cylinder, or an electric cylinder, or a ball screw (mechanism), etc. Furthermore, the screw rod 45 may be rotated manually as well as rotated by the actuator 50 as shown in the figure. Even if the screw rod 45 is rotated manually, the waterproof structure 100 can be deployed quickly by, for example, rotating both screw rods 45 synchronously by two people, and the entrance opening 13 can be blocked in a short time compared to the conventional method of stacking sandbags by multiple people.

[0043] A water-sealing material roll 61 wound with water-sealing material 60 is housed inside the recess 20, and the end unwound from the water-sealing material roll 61 is fixed to the lid 30. When the pantograph 40 is deployed to lift the lid 30 upward, the water-sealing material 60 is unwound from the water-sealing material roll 61 and blocks the lower part of the entrance / exit opening 13. The height of the water-sealing material 60 in the deployed state shown in Fig. 1 (the height lifted by the pantograph 40) can be set according to the expected flood height, and the water-sealing material 60 may be deployed up to above the entrance / exit opening 13 to ensure safety.

[0044] Here, the waterproof material 60 is not a plate material that requires a large storage space, but a waterproof sheet made of a woven fabric, cloth (including nonwoven fabric), flexible resin (for example, a blue sheet made of synthetic resin such as polyethylene), etc. Another example of the waterproof material may be a folding plate 60A in which a plurality of rectangular pieces 60a are connected to each other so as to be freely foldable, as shown in Fig. 3, and this folding plate 60A can be formed from a thin metal piece, a thin resin piece, etc. The folding plate 60A also includes a waterproof material roll 62 in which a plurality of rectangular pieces 60a are folded, and the waterproof material roll 62 is stored in the recess 20 shown in Figs. 1 and 2.

[0045] 1, a sign such as "Road Closed" is attached to the front of the waterproof material 60, which indicates that the use of the above-ground subway entrance / exit 10 is prohibited. As shown in the illustrated example, the waterproof material 60 of the waterproof structure 100 provided at an entrance / exit leading to a public facility such as an underground infrastructure is marked with a sign that says "Road Closed" or an equivalent, thereby preventing water from entering the underground infrastructure, etc., while preventing people from flowing into the underground infrastructure, etc., which is at risk of flooding.

[0046] In addition, flexible stiffening materials 65 that impart water pressure resistance to the waterproof material 60 are attached to the left and right ends of the waterproof material 60. The stiffening materials 65 may be entirely made of a waterproof gasket, or may have a waterproof gasket inside.

[0047] Flexible stiffening materials 65 that impart water pressure resistance to the waterproof material 60 are attached to the left and right ends of the waterproof material 60, thereby forming a waterproof material 60 that can withstand the water pressure Pw acting as shown in Figure 2.

[0048] Here, in addition to the illustrated example, one or more additional stiffening materials may be provided on the central side of the water-shielding material 60 as necessary.

[0049] In addition, since the stiffening material 65 has flexibility, it can be wound together with the water-shielding material 60 and housed in the recess 20. Furthermore, by providing the stiffening material 65 with, for example, a waterproof gasket, the waterproof gasket comes into contact with the wall 11 around the water-shielding structure 100 to form a seal structure, and water can be prevented from entering between the end of the water-shielding structure 100 and the left and right walls 11 of the entrance / exit 10. Here, as shown in FIG. 4, a recess 11a having a U-shape in cross section is provided in the wall 11, a channel steel 11b is fitted into the recess 11a, and a gasket 66 is attached to the inside of the channel steel 11b, so that when an end of the water-shielding material 60A (an example of a water-shielding material) is housed in the channel steel 11b, the gasket 66 comes into close contact with the end of the lid 30 or the end of the water-shielding material 60A to form a seal structure.

[0050] In addition, since a flexible waterproof material 60 is used and is accommodated in the recess 20 as a waterproof material roll 61, it is possible to use a wide range of plate-shaped waterproof material and eliminate the need for a large-scale recess that can accommodate this waterproof material, resulting in a waterproof structure 100 with a simple configuration while eliminating the need for large-scale construction related to the recess.

[0051] Once the risk of flooding has been eliminated, the pantograph 40 is folded to lower the lid 30 and the waterproofing material 60, the waterproof structure 100 is housed in the recess 20, and the opening of the recess 20 is closed with the lid 30, thereby returning the above-ground subway entrance 10 to its normal state where it can be used again.

[0052] [Waterproof structure according to the second embodiment] Next, an example of a waterproof structure according to a second embodiment will be described with reference to Fig. 5. Here, Fig. 5 is a front view of the waterproof structure according to the second embodiment, showing both a normal state and an emergency state.

[0053] The illustrated waterproof structure 100A differs from the waterproof structure 100 in that an X-shaped body 70 is provided instead of the pantograph 40.

[0054] X-shaped body 70 is formed by assembling two links 71 in an X shape around a pivot shaft 72, and the legs of multiple (two in the illustrated example) X-shaped bodies 70 are fixed to recesses 20 and their tops are fixed to the underside of lid 30 to support lid 30. X-shaped body 70 is accommodated in recess 20 by folding in the longitudinal direction of recess 20, and is unfolded upward to push lid 30 upward in the X6 direction.

[0055] The recess 20 is provided with a guide rail 74 for accommodating the wheels 73 at one end of each link 71 so as to be freely movable in the longitudinal direction of the recess 20, and similarly, the lid 30 is provided with a guide rail 75 for accommodating the wheels 73 at the other end of each link 71 so as to be freely movable in the longitudinal direction.

[0056] Motors 50 (one example of an actuator) are mounted on the rotation shafts 72 of the two links 71, and when the two links 71 rotate in the X4 direction by being driven by the motors 50, the wheels 73 at the ends of the links 71 move in the X5 direction toward the center inside the guide rails 74, 75, and the position is changed from the normal folded state shown by the dashed dotted line to the unfolded state shown by the solid line, thereby lifting the lid 30 upward in the X6 direction. The two motors 50 are rotated synchronously.

[0057] Like the waterproof structure 100, the waterproof structure 100A can be quickly deployed unmanned or with as few personnel as possible to block the ground entrance 10 while suppressing or preventing flooding.

[0058] [Waterproof structure according to the third embodiment] Next, an example of a waterproof structure according to a third embodiment will be described without referring to the drawings.

[0059] This waterproof structure has a configuration in which the multiple links rotate in the longitudinal direction of the recess 20, causing the multiple links to be folded in the longitudinal direction and then unfolded.

[0060] In this form, the waterproof material 60 can be stored in the recess 20 and deployed above the recess 20 by using links of as simple a configuration as possible (simpler than the pantograph 40 and the X-shaped body 70), in which multiple links rotate in the longitudinal direction of the recess to be deployed and then folded.

[0061] [Water shielding system according to the embodiment] Next, an example of a waterproof system according to an embodiment will be described with reference to Fig. 6 and Fig. 7. Here, Fig. 6 shows an overall configuration of an example of a waterproof system according to an embodiment, and is a diagram showing an example of a functional configuration of an actuator that changes the attitude of a waterproof structure and a user terminal, and Fig. 7 is a diagram showing an example of a hardware configuration of the user terminal.

[0062] As shown in Fig. 6, the waterproof system 400 includes a waterproof structure 100 (100A) and a user terminal 200 provided by an administrator or the like who manages the attitude change of the waterproof structure 100 (100A). The waterproof system 400 is formed by connecting the actuator 50 that changes the attitude of the waterproof structure 100 (100A) and the user terminal 200 via a network 300. Examples of the user terminal 200 include a personal computer (PC), a tablet, a smartphone, and the like.

[0063] The network 300 includes a public network such as the Internet, a wireless network such as a mobile phone network, a dedicated network such as a Virtual Private Network (VPN), a Local Area Network (LAN), and the like.

[0064] 7, the user terminal 200 includes a CPU 211, a main memory device 212, an auxiliary memory device 213, a communication IF (interface) 214, and an input / output IF 215, which are interconnected by a connection bus 216. The main memory device 212 and the auxiliary memory device 213 are computer-readable recording media. Note that the above components may be provided separately, or some of the components may not be provided.

[0065] The CPU 211 is also called an MPU (Microprocessor) or a processor, and may be a single processor or a multiprocessor. The CPU 211 is a central processing unit that performs overall control of the user terminal 200, which is a computer. The CPU 211, for example, develops a program stored in the auxiliary storage device 213 in an executable manner in the working area of ​​the main storage device 212, and controls peripheral devices through the execution of the program, thereby providing a function that meets a predetermined purpose.

[0066] The main storage device 212 stores computer programs executed by the CPU 211, data processed by the CPU 211, etc. The main storage device 212 includes, for example, a flash memory, a RAM (Random Access Memory), and a ROM (Read Only Memory). The auxiliary storage device 213 stores various programs and various data in a readable and writable recording medium, and is also called an external storage device. The auxiliary storage device 213 stores, for example, an OS (Operating System), various programs, various tables, etc. The OS includes, for example, a communication interface program that transfers data to and from an external device, etc. connected via the communication IF 214. The external device, etc. includes, for example, an actuator 50 connected to a network.

[0067] The auxiliary storage device 213 is used, for example, as a storage area that supports the main storage device 212, and stores computer programs executed by the CPU 211, data processed by the CPU 211, etc. The auxiliary storage device 213 is a silicon disk including a non-volatile semiconductor memory (flash memory, EPROM (Erasable Programmable ROM)), a hard disk drive (HDD: Hard Disk Drive) device, a solid state drive device, etc. Examples of the auxiliary storage device 213 include drives for removable recording media such as a CD drive device, a DVD drive device, and a BD drive device, and examples of the removable recording media include a CD, a DVD, a BD, a USB (Universal Serial Bus) memory, and an SD (Secure Digital) memory card, etc.

[0068] The communication IF 214 is an interface with a network 300 to which the user terminal 200 is connected. The communication IF 214 transmits, via the network 300, a drive signal and a drive stop signal to each actuator 50 constituting the waterproof structure 100 (100A).

[0069] The input / output IF 215 is an interface for inputting and outputting data between devices connected to the user terminal 200. Input devices, such as a keyboard, a pointing device such as a touch panel or a mouse, and a microphone, are connected to the input / output IF 215. The user terminal 200 receives operation instructions and the like from an operator who operates the input device via the input / output IF 215. In addition, output devices, such as a display device such as a liquid crystal panel (LCD: Liquid Crystal Display) or an organic EL panel (EL: Electroluminescence), a printer, a speaker, and the like, are connected to the input / output IF 215.

[0070] As shown in FIG. 6, the user terminal 200 provides various functions of at least a second communication unit 201, a drive control unit 202, and an information acquisition unit 203 by the execution of a program by a CPU 211.

[0071] On the other hand, the actuator 50 has a first communication unit 51 and an actuator driving unit 52 .

[0072] A command signal from the drive control unit 202 of the user terminal 200 is transmitted to the first communication unit 51 of each actuator 50 via the second communication unit 201, and the actuator drive unit 52 controls the rotation of the links 41, 71 by the actuator 50, thereby performing automatic displacement control of the pantograph 40, X-shaped body 70, and water-proof material 60.

[0073] Furthermore, the information acquisition unit 203 of the user terminal 200 is configured to continually acquire heavy rain information and flood information for the area in which the waterproof structure 100 (100A) is installed. This information acquisition unit 203 issues an alarm to alert the manager before heavy rain, river water, or the like inundates the ground entrance / exit 10 of the subway, making it possible to reliably change the posture of the waterproof structure 100 (100A) in an emergency.

[0074] The present invention is not limited to the configurations shown here, and may be implemented in other embodiments in which other components are combined with the configurations and the like set forth in the above embodiments. In this regard, the present invention may be modified without departing from the spirit of the present invention, and may be appropriately determined according to the application form. [Explanation of symbols]

[0075] 10: Subway entrance (ground level entrance) 11: Wall 11a: Recess 11b: Channel steel 12: Basics 13: Entrance opening 20: Recess 30: Lid 40: Pantograph 41: Link 42, 43, 44: Rotation axis 45: Screw rod 50: Actuator (motor) 51: First Communications Department 52: Actuator drive unit 60: Water-impermeable material (water-impermeable sheet) 60A: Water-resistant material (folding plate) 61, 62: Water-shielding material roll 65: Stiffening material 66: Gasket 70:X-shaped body 71: Link 72: Rotating shaft 73: Wheel 74,75: Guide rail 100, 100A: Water-impermeable structure 200: User terminal 201: Second Communications Department 202: Drive control unit 203: Information acquisition department 300: Network 400: Water-resistant system Pw: Water pressure

Claims

1. A waterproof structure comprising a belt-shaped lid extending in the longitudinal direction of a belt-shaped recess provided in a road surface, a plurality of links supporting the lid, and a waterproof material partially fixed to the lid, When the link is folded, the water-blocking structure is accommodated in the recess, and the lid closes the opening of the recess; A waterproof structure, characterized in that, when the link is deployed, the lid is lifted upward from the recess and the waterproof material is spread.

2. 2. The waterproof structure according to claim 1, wherein four of the links form a pantograph, and a plurality of the pantographs are folded and deployed in the longitudinal direction.

3. 2. The waterproof structure according to claim 1, wherein the two links are assembled in an X shape around a pivot shaft to form an X-shaped body, and a plurality of the X-shaped bodies are folded in the longitudinal direction and then unfolded.

4. The waterproof structure according to claim 1 , wherein the links are folded and unfolded in the longitudinal direction by rotating the links in the longitudinal direction.

5. The waterproof material is either a waterproof sheet or a folding plate in which a plurality of rectangular pieces are connected to each other so as to be freely foldable, The water-shielding material is accommodated in the recess in a wound state, 5. A waterproof structure as claimed in claim 1, wherein when the link is deployed, the waterproof material in a wound position is lifted upward and spread out.

6. A flexible stiffening material that imparts water pressure resistance to the waterproof material is attached to the left and right ends of the waterproof material, 6. A waterproof structure according to claim 1, wherein the stiffening material comprises a waterproof gasket.

7. 7. The waterproof structure according to claim 1, wherein the waterproof material is marked with a sign indicating "Road No Entry" or an equivalent sign.

8. An actuator for rotating the link is further provided, 8. The waterproof structure according to claim 1, wherein the actuator performs folding and unfolding of the link.

9. The waterproof structure according to claim 8 , A user terminal, The actuator includes a first communication unit and an actuator drive unit. The water-blocking system is characterized in that the user terminal is provided with a second communication unit capable of wireless communication with the first communication unit, and a drive control unit that executes drive control of the actuator drive unit.

10. The waterproof system according to claim 9 , wherein the user terminal further comprises an information acquisition unit that acquires heavy rain information or flood information for an area in which the waterproof structure is installed.

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