A smart civil defense and flood prevention door device, system and control method

Abstract

This invention relates to an intelligent civil defense and flood-proof door equipment, system, and control method. The equipment includes a door body and a door leaf drive mechanism. The door body includes a lower locking mechanism. A bottom lifting-type sealing structure is provided between the bottom of the left and right door leaves and the lower door frame. The door leaf drive mechanism is connected to the left and right door leaves. The system also includes an intelligent control device, which includes a sensor module and a drive control module integrated on the door body, as well as a remote control platform. The sensor module includes a door leaf opening / closing position detection sensor, a bottom lifting-type sealing structure compression status detection sensor, and a water level height detection sensor. The drive control module controls the door leaf drive mechanism and the lower locking mechanism based on the detection signals from the sensor module and the instructions from the remote control platform. This invention improves the sealing reliability and control safety of civil defense doors under high water levels and complex water flow conditions by optimizing the door body sealing and locking execution structure and combining sensor monitoring and centralized control.

Description

Technical Field

[0001] This invention relates to the field of civil defense flood control engineering, specifically to an intelligent civil defense and flood control gate equipment, system and control method. Background Technology

[0002] With the continuous development of urban underground space, various protective or airtight doors are widely installed in civil defense projects, underground passages, underground parking garages, and subway ancillary facilities to achieve isolation, protection, and structural enclosure in wartime or accident situations. Among them, double-leaf steel structure protective airtight doors have been widely used in underground civil defense projects due to their strong load-bearing capacity and high reliability of opening and closing. Existing civil defense airtight doors usually achieve airtightness, watertightness, or a certain degree of protection after the door is closed by installing rubber sealing strips between the door leaf and the door frame, combined with mechanical locking mechanisms. In recent years, affected by factors such as extreme rainfall and urban flooding, the risk of flooding faced by underground civil defense projects has become increasingly prominent. Civil defense doors, which were traditionally designed primarily for "airtightness," have begun to be used to also accommodate flood prevention functions. In existing engineering practices, the water-blocking capacity of doors under flood conditions is usually improved by thickening the door body, increasing the rigidity of the door frame, installing sealing strips around the door leaf, or adding water-blocking components locally. Some projects have also tried to introduce electric drive mechanisms or remote control methods to realize electric opening and closing or centralized management of the door body in order to meet the needs of rapid response in emergency situations.

[0003] However, existing airtight doors for civil defense and their flood-proof retrofit solutions still reveal many shortcomings in practical applications. First, the existing door sealing structures are mostly concentrated in the upper and side areas of the door leaf. The bottom of the door leaf is often limited by factors such as the lack of a threshold, uneven ground, or construction errors, making it difficult to achieve a reliable and controllable seal. Under high water levels or continuous water pressure, this can easily become a weak point for leakage. Second, the existing locking mechanisms and sealing structures mostly rely on passive mechanical cooperation, lacking real-time perception and feedback of the sealing pressure state, making it difficult to accurately determine whether the door is truly in an effective flood-proof state under complex conditions. Furthermore, existing flood-proof door systems are mostly based on independent control of individual doors. Even those with electric opening and closing or remote control functions typically only achieve simple "open-close" operations, lacking the ability to coordinate control based on water level changes, door status, and the overall water flow characteristics of the project. In civil defense projects with multiple entrances and exits and multiple channels, when floodwaters enter from different directions, existing technology struggles to coordinate and dynamically adjust multiple doors, easily leading to problems such as unreasonable closing sequences, local lag, or misoperation. Meanwhile, the existing system has limited ability to utilize external risk factors such as meteorological information and water level change trends, making it difficult to predict and control them in advance. The overall flood prevention safety and intelligence level still need to be improved. Summary of the Invention

[0004] In view of the above-mentioned defects in the existing technology, the present invention provides an intelligent civil defense and flood prevention door equipment, system and control method. By optimizing the door sealing and locking execution structure and combining sensor monitoring and centralized control, the sealing reliability and control safety of the civil defense door under high water level and complex water flow conditions are improved.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] An intelligent civil defense and flood prevention door device includes a door body and a door leaf drive mechanism;

[0007] The door includes a lower locking mechanism. The upper part and sides of the left and right door leaves are sealed to the corresponding upper door frame and side door frame by sealing strips. A center seam sealing structure is provided at the center seam of the left and right door leaves. A bottom lifting sealing structure is provided between the bottom of the left and right door leaves and the lower door frame.

[0008] The door drive mechanism is connected to the left and right door panels and is used to drive the opening and closing of the left and right door panels;

[0009] The bottom lifting sealing structure includes an edge sealing strip, a ground sealing strip, a sealing strip clamping plate, a movable pressure plate, a fixed baffle, and a connecting sleeve.

[0010] The edge sealing strip is fixed to the bottom of the left and right door panels by a sealing strip clip and has a bent support structure formed in the horizontal direction. The ground sealing strip is embedded in the bottom groove of the edge sealing strip.

[0011] The lower end of the movable pressure plate is set in the groove of the edge sealing strip, and the upper end is linked with the locking linkage mechanism of the left and right door panels through the connecting sleeve. When the locking linkage mechanism moves down, it drives the edge sealing strip and the ground sealing strip to press down on the ground as a whole.

[0012] The bottom lifting sealing structure is equipped with a fixed baffle on the water-facing side as a rigid water-blocking surface.

[0013] Preferably, a sealing strip baffle is provided on the outer side of the edge sealing strip.

[0014] Preferably, a diagonal rib structure is provided at the corner of the sealing strip at the bottom of the side door frame, and part of the sealing strip presses against the diagonal rib when the ground sealing strip is pressed down.

[0015] Preferably, the center seam sealing structure includes a rubber strip groove welded on the left or right door leaf, a center seam sealing rubber strip installed in the rubber strip groove, and a pressing plate installed on the left or right door leaf.

[0016] Preferably, the edge sealing strip at the bottom joint of the left and right door panels is provided with a limiting or pressure compensation structure to suppress the deformation gap of the edge sealing strip at the junction of the center seam and the ground seam under water pressure.

[0017] Preferably, the wall-penetrating hole of the handwheel of the door body, the lower lock sleeve of the lower locking mechanism, and the installation area of ​​the lock rod and lock head are all provided with partial seals, and the handle position on the water-facing side of the door body is provided with a seepage-proof gasket seal.

[0018] Preferably, the edge sealing strip is made of high-hardness EPDM material; the ground sealing strip is made of high-compression EPDM material.

[0019] Preferably, the left and right door panels are provided with an external locking rod structure on the water-facing side. After the door panels are closed, the external locking rod is extended outward by the handwheel or motor of the door body and engages with the corresponding locking base to share the force of the original built-in locking rod under high water pressure.

[0020] Preferably, the door drive mechanism can adopt an externally mounted walking wheel drive structure, which is located at the bottom of the left and right door panels and drives the rollers to roll via a motor to open and close the left and right door panels.

[0021] Preferably, the door drive mechanism can adopt a curved arm slide type drive structure, which is set on the back side and converts the motor rotation motion into the opening and closing motion of the left and right door panels through the cooperation of the curved arm and the slide.

[0022] Preferably, the door drive mechanism can adopt a through-wall linkage drive structure, which includes a drive motor, a primary reducer, and a universal joint connected to the output end of the primary reducer located on the back side, and a vertical reducer, an output shaft rocker arm, and a connecting rod located on the front side. The vertical reducer and the universal joint are connected through a through-wall rotating shaft.

[0023] On the other hand, the present invention also discloses an intelligent civil defense and flood prevention door system, including the above-mentioned intelligent civil defense and flood prevention door equipment, and also includes an intelligent control device. The intelligent control device includes a sensor module and a drive control module integrated on the door body, as well as a remote control platform. The sensor module includes a door leaf opening and closing position detection sensor, a bottom lifting sealing structure pressing state detection sensor, and a water level height detection sensor.

[0024] The drive control module controls the door drive mechanism and the lower locking mechanism based on the sensor module's detection signals and the remote control platform's instructions, thereby achieving intelligent linkage control of the left and right door opening and closing actions and sealing actions.

[0025] Preferably, the bottom lifting sealing structure compression state detection sensor is located at the bottom of the ground sealing strip. The bottom lifting sealing structure compression state detection sensor is used to detect the compression state of the ground sealing strip and output a compression detection signal to the drive control module.

[0026] Preferably, the drive control module is located inside a control box, which has an open / close button, a key management function, and an audible and visual alarm module to provide human-machine interaction and issue status prompts during the opening, closing, and sealing of the door.

[0027] Preferably, the drive control module in the control box is electrically connected to the motor of the door leaf drive mechanism, the motor of the lower locking mechanism, and the push rod pin drive mechanism, and performs forward and reverse switching of door opening, closing, unlocking / locking, and pin extension / retraction actions through contactors, frequency converters, and relays.

[0028] Preferably, the sensor module further includes a locking rod travel detection sensor and a pin position detection sensor. After detecting the corresponding mechanism's position, the sensor module sends a stop drive command trigger signal back to the drive control module.

[0029] Preferably, the remote control platform is a building automation system, and the drive control module outputs door open, door closed and fault alarm information to the building automation system through hard contact signals.

[0030] Furthermore, this invention also discloses a control method based on the above-mentioned intelligent civil defense and flood prevention door system, wherein the drive control module executes the following steps:

[0031] S1. When the water level detection sensor detects an over-limit water level signal or a door closing linkage command issued by the remote control platform, the lower locking mechanism is driven to unlock, causing the locking rod to retract.

[0032] S2. After a preset delay, start the door closing drive motor to move the left and right door panels in the closing direction;

[0033] S3. Stop driving the left and right doors based on the closing position detection sensor feedback signal from the left and right door opening and closing position detection sensor;

[0034] S4. Drive the lower locking mechanism to drive the locking linkage mechanism to perform the pressing action, and confirm the pressing is in place according to the feedback of the pressing status detection sensor of the bottom lifting sealing structure. After the pressing is in place, drive the locking rod of the lower locking mechanism to extend to complete the locking.

[0035] S5. After the action is completed, the audible and visual alarm will stop and the door will be reported to the remote control platform as closed.

[0036] Preferably, the closing and locking steps are performed sequentially on the left and right door panels, and the closing and locking action of the right door panel is triggered by the completion of locking of the left door panel.

[0037] Preferably, when the emergency stop button is pressed in any step, the drive control module immediately terminates the drive; when the door closing command is triggered again after the emergency stop is released, the system resumes execution from the interrupted step.

[0038] Preferably, when the water level sensor detects a high water level signal during the control process, the drive control module automatically sends an alarm status to the remote control platform and allows remote linkage control.

[0039] Preferably, multiple intelligent civil defense and flood prevention gate systems are connected to the same remote control platform. The remote control platform stores a gate linkage control route map obtained based on the water flow direction analysis within the civil defense project. When the water level detection sensor at any upstream position detects a water level exceeding the limit signal, it issues a linkage command to prioritize closing the upstream gate in order to prevent floodwater from spreading downstream in advance.

[0040] Preferably, the remote control platform further acquires meteorological forecast data, including rainstorm intensity, rainfall trend and meteorological warning level, and issues a pre-closing or pre-closing command to the intelligent civil defense and flood prevention door system in advance when heavy rainfall is predicted or the meteorological warning level reaches a set threshold.

[0041] Preferably, the remote control platform restricts the scope of action permissions for each gate based on the location of different gates within the civil defense project, the design water level, and the risk zone division, so that operators in the risk zone are only allowed to perform opening and closing operations on the gates within the corresponding area; while the pre-plan trigger control commands at the entire project level are uniformly issued by the remote control platform.

[0042] Preferably, when an abnormal state occurs during the closing action of a certain gate, the remote control platform recalculates the water flow diffusion path based on the gate linkage control route map and automatically readjusts the closing command sequence of other gates.

[0043] Preferably, the remote control platform has multiple gate linkage control route maps pre-stored based on different flood intrusion directions and water flow evolution paths within the civil defense project. The remote control platform intelligently matches each route map according to real-time water level height detection sensor feedback, rainfall data, and water level change trends, selects the linkage control route map with the highest matching degree as the execution strategy for this round, and rematches and switches to a more suitable route map to update the linkage control sequence when the water level flow direction or water level change trend deviates significantly during the execution process.

[0044] This invention proposes an innovative intelligent civil defense and flood prevention door equipment, system, and control method. Compared with the prior art, the advantages of this invention are as follows:

[0045] (1) The present invention provides a bottom lifting sealing structure at the bottom of the door. This structure is designed by combining the edge sealing strip and the ground sealing strip, and under the action of the locking linkage mechanism driven by the lower locking mechanism, the whole structure is pressed down to form an active compression seal with the ground. This not only effectively compensates for the gap problem caused by the door installation error and the uneven ground, but also maintains a stable sealing state under water pressure, avoiding the defects of traditional fixed or passive compression sealing structures that are prone to deformation and failure under high water head conditions.

[0046] (2) The present invention integrates a door leaf opening and closing position detection sensor, a bottom lifting sealing structure pressing state detection sensor and a water level height detection sensor on the door body. The drive control module coordinates and controls the door leaf drive mechanism and the lower locking mechanism in a unified manner, so that the door leaf closing, bottom lifting sealing structure pressing and locking rod locking processes are completed automatically in sequence according to the preset logic. The locking action is performed only after the sealing and pressing state is detected in real time, thereby avoiding the risk of incomplete sealing, delayed locking and flood prevention failure caused by relying on manual experience or single actuator control in the prior art. It significantly improves the sealing reliability and operational safety of the civil defense and flood prevention door under complex flood conditions.

[0047] (3) This invention establishes a communication connection with multiple civil defense and flood prevention gate systems through a remote control platform, centrally acquires the operating status, water level information and alarm information of each gate, and pre-stores multiple sets of gate linkage control route maps based on the internal water flow direction analysis of civil defense projects. When floods occur or water levels are abnormal, it intelligently matches and selects appropriate linkage control strategies based on real-time water level detection results, rainfall data and water level change trends, and prioritizes the control of key gates to block water flow diffusion. At the same time, during the execution process, the linkage sequence of gates can be dynamically adjusted according to the water flow direction or changes in operating conditions, and preventive control commands can be triggered in advance in conjunction with meteorological forecast information, thereby overcoming the shortcomings of the existing technology of independent control of single gates, lack of overall coordination and forward-looking decision-making capabilities, and significantly enhancing the overall flood prevention capability and emergency response efficiency of civil defense projects in complex flood scenarios. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the water-facing structure of the intelligent civil defense and flood prevention door equipment according to an embodiment of the present invention.

[0049] Figure 2 for Figure 1 A cross-sectional view of AA.

[0050] Figure 3 for Figure 1 A cross-sectional view of BB.

[0051] Figure 4 This is a front view of the backwater structure of the intelligent civil defense and flood prevention door equipment according to an embodiment of the present invention.

[0052] Figure 5 This is a top view of the backwater structure of the intelligent civil defense and flood prevention door equipment according to an embodiment of the present invention.

[0053] Figure 6 This is a side view of the backwater structure of the intelligent civil defense and flood prevention door equipment according to an embodiment of the present invention.

[0054] Figure 7 This is a three-dimensional schematic diagram of the water-facing side of the intelligent civil defense and flood prevention door equipment according to an embodiment of the present invention.

[0055] Figure 8 This is a three-dimensional schematic diagram of the backwater side of the intelligent civil defense and flood prevention door equipment according to an embodiment of the present invention.

[0056] Figure 9 This is a schematic diagram of the bottom lifting sealing structure of the intelligent civil defense and flood prevention door equipment according to an embodiment of the present invention.

[0057] Figure 10 This is a schematic diagram of the locking linkage mechanism of the intelligent civil defense and flood prevention door equipment according to an embodiment of the present invention.

[0058] Figure 11 This is a schematic diagram of the external walking wheel drive structure of the intelligent civil defense and flood prevention door equipment according to an embodiment of the present invention.

[0059] Figure 12 This is a schematic diagram of the articulated arm sliding drive structure of the intelligent civil defense and flood prevention door equipment according to an embodiment of the present invention.

[0060] Figure 13 This is a schematic diagram of the through-wall linkage drive structure of the intelligent civil defense and flood prevention door equipment according to an embodiment of the present invention.

[0061] Figure 14 This is a flowchart of the control method for the intelligent civil defense and flood prevention door system according to an embodiment of the present invention.

[0062] Figure 15 This is a schematic diagram of the connection of the drive control module of the intelligent civil defense and flood prevention door system according to an embodiment of the present invention.

[0063] Figure 16 This is a schematic diagram of the remote control platform connection for the intelligent civil defense and flood prevention door system according to an embodiment of the present invention.

[0064] Explanation of reference numerals in the attached drawings: 1-Door body; 11-Upper door frame; 12-Lower door frame; 13-Side door frame; 14-Left door leaf; 15-Right door leaf; 16-Handwheel; 17-Water-facing handle; 18-Lower locking mechanism; 181-Lower locking linkage mechanism; 19-Center seam sealing structure; 191-Glue strip groove; 192-Center seam sealing glue strip; 193-Embedding plate; 2-Door leaf drive mechanism; 21-External hanging walking wheel drive structure; 211-Roller; 22- 221-Crank arm sliding drive structure; 222-Sliding groove; 23-Through-wall connecting rod drive structure; 231-Single stage reducer; 232-Universal joint; 233-Rotating shaft; 234-Vertical reducer; 235-Output shaft rocker arm; 236-Connecting rod; 3-Bottom lifting sealing structure; 31-Edge sealing strip; 32-Ground sealing strip; 33-Sealing strip retainer; 34-Modible pressure plate; 35-Fixed baffle; 36-Sealing strip baffle. Detailed Implementation

[0065] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the present invention.

[0066] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0067] like Figure 1-8 As shown, this embodiment discloses an intelligent civil defense and flood prevention door equipment, including a door body 1 and a door leaf drive mechanism 2, wherein the door body 1 serves as the main load-bearing structure for both flood prevention and civil defense functions, and is used to reliably close the passage under flood or wartime conditions.

[0068] The door body 1 includes an upper door frame 11, a lower door frame 12, a side door frame 13, a left door leaf 14, a right door leaf 15, a handwheel 16, a water-facing handle 17, and a lower locking mechanism 18. The upper door frame 11, the lower door frame 12, and the side door frame 13 form the door body installation frame. The left door leaf 14 and the right door leaf 15 are double-leaf structures and serve as the main structure of the door body 1. The handwheel 16 is used for manual operation in case of power failure or emergency. The water-facing handle 17 is located on the water-facing side of the door leaf so that personnel can perform auxiliary operations under special working conditions. The lower locking mechanism 18 is located in the bottom area of ​​the door body and serves as the core actuator for the locking and sealing linkage of the door body 1.

[0069] The upper part and sides of the left and right door leaves 14 and 15 are sealed with the corresponding upper door frame 11 and side door frame 13 by sealing strips to form a circumferential sealing interface when the door leaves are closed. A center seam sealing structure 19 is provided at the center seam of the left and right door leaves 14 and 15. The center seam sealing structure 19 is used to seal and compensate the joint in the middle of the double door to prevent water from seeping in from the joint of the door leaves.

[0070] A bottom lifting sealing structure 3 is provided between the bottom of the left and right door leaves 14 and 15 and the lower door frame 12. During the door locking process, the bottom lifting sealing structure 3 can move downward with the action of the lower locking mechanism 18 and press against the ground, thereby forming a reliable seal at the ground seam.

[0071] The door drive mechanism 2 is connected to the left and right door leaves 14 and 15 and is used to drive the opening and closing of the left and right door leaves 14 and 15. The door drive mechanism 2 can adopt any one of the following according to the installation space and force conditions: external walking wheel drive structure 21, curved arm slide drive structure 22 or through wall linkage drive structure 23, so as to realize the mechanical drive of the door opening and closing movement.

[0072] like Figure 9-10 As shown, the bottom lifting sealing structure 3 includes an edge sealing strip 31, a ground sealing strip 32, a sealing strip retaining plate 33, a movable pressure plate 34, a fixed baffle 35, and a connecting sleeve. The edge sealing strip 31 and the ground sealing strip 32 constitute the flexible sealing body of the bottom seal. The sealing strip retaining plate 33 is used to reliably fix the sealing strip to the left and right door leaves 14 and 15. The movable pressure plate 34 and the connecting sleeve are used to transmit the action of the lower locking mechanism 18 to the sealing structure.

[0073] The edge sealing strip 31 is fixed to the bottom of the left and right door panels 14 and 15 by the sealing strip retainer 33 and has a bent support structure formed in the horizontal direction. This bent support structure can provide lateral support when the edge sealing strip 31 is compressed, preventing the sealing strip from rolling over or becoming unstable towards the back water side. The ground sealing strip 32 is embedded in the bottom groove of the edge sealing strip 31, so that the ground sealing strip 32 can produce local elastic deformation relative to the edge sealing strip 31 when pressed against the ground to adapt to the uneven ground. The lower end of the movable pressure plate 34 is set in the retainer groove of the edge sealing strip 31, and the upper end is linked to the locking linkage mechanism 181 of the left and right door panels 14 and 15 through the connecting sleeve. The movable pressure plate 34 acts as a force transmission mechanism. The locking linkage mechanism 181 converts the linear motion of the locking linkage mechanism 181 into a downward pressing action on the edge sealing strip 31 and the ground sealing strip 32. When the locking linkage mechanism 181 moves downward, it drives the edge sealing strip 31 and the ground sealing strip 32 to press down on the ground as a whole, thereby completing the bottom sealing synchronously during the door locking stage. The bottom lifting sealing structure 3 has a fixed baffle 35 on the water-facing side as a rigid water-blocking surface. The fixed baffle 35 is located on the water-facing side of the edge sealing strip 31 and is used to withstand the main water pressure under high water head pressure and form structural support for the flexible sealing strip. In addition, a sealing strip baffle 36 is provided on the outside of the edge sealing strip 31 to limit the deformation or displacement of the sealing strip under water pressure impact.

[0074] Furthermore, a diagonal rib structure is provided at the corner of the sealing strip at the bottom of the side door frame 13. When the ground sealing strip 32 is pressed down, part of the sealing strip presses against the diagonal rib to eliminate the movement gap at the bottom joint and enhance the resistance to deformation under water pressure. The diagonal rib structure is set along the corner area where the side door frame 13 meets the ground and forms an oblique force contact relationship with the ground sealing strip 32. When the bottom lifting sealing structure 3 performs the pressing action, while the ground sealing strip 32 is vertically pressed against the ground, its lateral part is guided by the diagonal rib structure to generate an inward or upward supporting reaction force, thereby eliminating the movement gap caused by assembly tolerance or structural deformation at the corner of the door leaf and the side door frame 13. This prevents the area from local warping, collapse or extrusion deformation under high water level or water pressure, thereby improving the sealing continuity and overall water pressure resistance stability at the corner.

[0075] like Figure 3 As shown, the center seam sealing structure 19 includes a rubber strip groove 191 welded on the left door leaf 14 or the right door leaf 15, a center seam sealing rubber strip 192 installed in the rubber strip groove 191, and a pressing plate 193 installed on the left and right door leaves 14 and 15. During the closing process, one of the door leaves is driven to close first and form a seal with the door frame. Then, the other door leaf is driven to close, so that the pressing plate 193 is gradually pressed into the center seam sealing rubber strip 192. The radial compression seal is formed by the pressing, thereby creating a reliable waterproof sealing interface at the center seam of the two door leaves, avoiding leakage channels at the center seam under water pressure, and improving the overall water pressure resistance and sealing stability of the double door.

[0076] In this embodiment, a limiting or pressure-compensating structure is provided at the end of the edge sealing strip 31 at the bottom joint of the left and right door panels 14 and 15. This structure is used to suppress the deformation gap of the edge sealing strip 31 at the intersection of the center seam and the ground seam under water pressure, thereby preventing it from becoming a weak point for leakage. The limiting or pressure-compensating structure can be formed by local thickening, setting a limiting shoulder, or an elastic compensation component. In addition, local seals are provided in the wall hole of the handwheel 16, the lower lock sleeve of the lower locking mechanism 18, and the installation area of ​​the lock rod lock head. A seepage-proof gasket is provided at the water-facing handle 17. The local seals can be a combination of sealing rings, sealing gaskets, or sealant to reliably cover the wall hole and the installation hole of the moving parts, thereby effectively protecting the handwheel 16 from transmission, the lower locking mechanism 18 from action, and the water-facing handle 17 from stress. The system prevents water from seeping into the structure through gaps, enhancing the overall waterproof safety of the door under high water conditions. The edge sealing strip 31 is made of high-hardness EPDM material to withstand water pressure, with a Shore hardness of approximately 70. The ground sealing strip 32 is made of high-compression EPDM material to seal ground gaps, with a Shore hardness of approximately 30. The edge sealing strip 31, with its high hardness, ensures that it does not undergo significant lateral deformation under water pressure, thus maintaining the stability of the sealing profile on the water-facing side. The ground sealing strip 32, with its lower hardness and higher compressibility, achieves full adhesion to the ground. Under the clamping action of the locking linkage mechanism 181, it can effectively fill the small gaps caused by uneven ground. The two sealing strips with different properties work together to achieve a balance between water pressure resistance and ground sealing effect in the bottom lifting sealing structure 3.

[0077] In some embodiments, the left and right door panels 14 and 15 are provided with external locking rod structures (not shown in the figure) on the water-facing side. The external locking rod structure is arranged on the water-facing side of the door panel as an auxiliary force-bearing component in addition to the built-in locking rod, and is used to provide additional structural constraints under high water level conditions. After the door panel is closed, the external locking rod extends outward by handwheel 16 or motor drive and engages with the corresponding locking base. This drive method can be selected to be manual or electric depending on the site conditions, so that the external locking rod participates in the load-bearing after the door panel is closed, thereby sharing the force of the original built-in locking rod under high water pressure, thereby improving the bending strength and overall structural stability of the floodproof door when subjected to water pressure. By transferring part of the water pressure to the door frame or base structure, the stress concentration of the door panel body and the built-in locking rod is reduced, and the safety and reliability of the door 1 under extreme floodproof conditions are enhanced.

[0078] The door drive mechanism 2 can take many forms, such as Figure 11As shown, the externally mounted walking wheel drive structure 21 is installed at the bottom of the left and right door panels 14 and 15. The motor drives the rollers 211 to roll, thus opening and closing the left and right door panels 14 and 15. This structure utilizes the rolling support between the bottom of the door panel and the ground to achieve smooth movement of the door panel. It is suitable for installation scenarios where the door panel is heavy and ground conditions allow for the installation of rollers 211 for guidance. Figure 8 , 12 As shown, the articulated arm sliding drive structure 22 is located on the backwater side, and through the cooperation of the articulated arm 221 and the sliding groove 222, the rotational motion of the motor is converted into the opening and closing motion of the left and right door panels 14 and 15. This structure achieves controlled movement of the door panels through the geometric constraint relationship between the articulated arm 221 and the sliding groove 222, and is suitable for working conditions with high requirements for the opening and closing stroke and movement trajectory of the door panels; Figure 13 As shown, the through-wall linkage drive structure 23 includes a drive motor, a first-stage reducer 231, and a universal joint 232 connected to the output end of the first-stage reducer located on the back water side. It also includes a vertical reducer 234, an output shaft rocker arm 235, and a connecting rod 236 located on the front water side. The vertical reducer 234 and the universal joint 232 are connected by a through-wall rotating shaft 233. This structure, by arranging the drive components on the back water side and driving the front water side door to move through the wall, is beneficial to protecting the working reliability of the drive motor and reducer components in a high water level environment.

[0079] This invention also discloses an intelligent civil defense and flood prevention door system, including the aforementioned intelligent civil defense and flood prevention door equipment, and further including an intelligent control device. The intelligent control device includes a sensor module and a drive control module integrated on the door body 1, as well as a remote control platform located in the machine room. The sensor module is arranged at key positions on the door body 1 to obtain the door's operating status. The sensor module includes a door leaf opening and closing position detection sensor, a bottom lifting sealing structure compression status detection sensor, and a water level height detection sensor. The door leaf opening and closing position detection sensor is used to determine whether the door leaf movement is in place, the bottom lifting sealing structure compression status detection sensor is used to confirm whether the sealing structure has been compressed, and the water level height detection sensor is used to sense changes in the water level around the door body in real time. The drive control module controls the door leaf drive mechanism 2 and the lower locking mechanism 18 according to the detection signals from the sensor module and the instructions from the remote control platform. By coordinating the door leaf opening and closing actions with the locking and sealing actions of the lower locking mechanism 18, the linkage intelligent control of the opening and closing actions and sealing actions of the left and right door leaves 14 and 15 is realized.

[0080] Furthermore, a bottom lifting sealing structure compression state detection sensor is installed at the bottom of the ground sealing strip 32. The bottom lifting sealing structure compression state detection sensor is used to output a detection signal when the ground sealing strip 32 is in full contact with the ground and reaches the predetermined compression state, and output a compression detection signal to the drive control module to determine whether the bottom seal has been performed in place.

[0081] The drive control module is located in the control box on the back side of the door. The control box has an opening and closing button, a key management function, and an audible and visual alarm module. It is used to provide local human-machine interaction and issue status prompts during the opening, closing and sealing of the door. The control box serves as the centralized control unit on the back side of the door 1. On the one hand, it facilitates on-site manual operation and emergency intervention. On the other hand, the audible and visual alarm module prompts the surrounding personnel about the current operating status during the opening and closing of the door 14 and 15, the action of the lower locking mechanism 18, and the pressing of the bottom lifting sealing structure 3.

[0082] The drive control module inside the control box is electrically connected to the motor of the door leaf drive mechanism 2, the motor of the lower locking mechanism 18, and the push rod pin drive mechanism, respectively. It performs forward and reverse switching of door opening, closing, unlocking / locking, and pin extension and retraction actions through contactors, frequency converters, and relays. The contactors and relays are used to realize the on and off and direction control of each actuator, and the frequency converter is used to adjust the start and stop and running speed of the door leaf drive motor to ensure that the door leaf opening and closing process is smooth and reliable.

[0083] The sensor module also includes a locking rod travel detection sensor and a pin position detection sensor. After detecting the corresponding mechanism's position, the sensor module sends a stop drive command trigger signal to the drive control module, thereby terminating the corresponding drive action in a timely manner when the locking rod or pin reaches the predetermined position, avoiding overtravel or malfunction of the mechanism.

[0084] In some embodiments, the remote control platform is a building automation system (BAS). The drive control module outputs door open position, door close position and fault alarm information to the building automation system through hard contact signals, so that the civil defense and flood prevention door system in the civil defense project can be connected to the existing building automation monitoring system to realize centralized monitoring and remote linkage control of the operating status.

[0085] Please see Figure 14 Another embodiment of the present invention discloses a control method based on the above-mentioned intelligent civil defense and flood prevention door system, wherein the drive control module executes the following steps:

[0086] S1. When the water level detection sensor detects an over-limit water level signal or a door closing linkage command issued by the remote control platform, the lower locking mechanism 18 is driven to unlock, causing the locking rod to retract. This step is used to release the mechanical constraint before the door panels 14 and 15 perform opening and closing actions, so as to avoid structural damage caused by the door panels being forcibly moved in the locked state.

[0087] S2. After a preset delay, start the door closing drive motor to make the left and right door panels 14 and 15 move in the closing direction; by setting the delay, it can be ensured that the lower locking mechanism 18 is fully unlocked before the door panel movement is executed, thereby improving the reliability of action coordination.

[0088] S3. Based on the closing position detection sensor feedback signal of the left and right door panels 14 and 15, stop the drive of the left and right door panels 14 and 15, so as to terminate the drive in time when the door panel reaches the predetermined closing position and avoid overtravel operation.

[0089] S4. Drive the lower locking mechanism 18 to drive the locking linkage mechanism 181 to perform the pressing action, and confirm the pressing is in place according to the feedback of the pressing status detection sensor of the bottom lifting sealing structure 3. After the pressing is in place, drive the locking rod of the lower locking mechanism 18 to extend to complete the locking. This step achieves reliable pressing of the edge sealing strip 31 and the ground sealing strip 32 to the ground by the downward movement of the locking linkage mechanism 181, and the locking rod undertakes the locking function of the door 1 after the sealing is completed.

[0090] S5. After the action is completed, the audible and visual alarm stops and the door is reported to the remote control platform to indicate that the door is closed. This allows the remote control platform to obtain the final execution result of the civil defense and flood prevention door in real time, completing a complete door closing and sealing linkage control process.

[0091] In step S2, the closing and locking steps are performed sequentially on the left door leaf 14 and the right door leaf 15, with the closing and locking action of the right door leaf 15 triggered by the locking of the left door leaf 14. This sequential control method allows the double-leaf structure to form a force relationship of positioning first and then overlapping during the closing process, which is beneficial to the reliable fit of the center seam sealing structure 19. In other embodiments, the closing and locking sequence can also be adjusted to the right door leaf 15 first and then the left door leaf 14, thereby improving the system's adaptability to different installation conditions. Furthermore, when the emergency stop button is pressed in any step, the drive control module immediately terminates the drive. This setting is used to quickly interrupt the execution action in the event of sudden personnel intrusion, mechanism abnormality, or external interference. When the closing command is triggered again after the emergency stop is released, the system continues execution from the interrupted step, making the control process recoverable without the need for a complete reset.

[0092] like Figure 15-16As described above, in this embodiment, when the water level sensor detects a high water level signal during the control process, the drive control module automatically sends an alarm status to the remote control platform and allows remote linkage control. The remote control platform uniformly schedules the operating states of multiple doors 1 (such as Door A, Door B, Door C, Door D... Door N), so as to achieve a coordinated flood prevention response across doors when the flood level rises rapidly. Multiple intelligent civil air defense and flood prevention door systems are communicatively connected to the same remote control platform (where Door A corresponds to Drive Control Module A, Door B corresponds to Drive Control Module B, Door C corresponds to Drive Control Module C, Door B corresponds to Drive Control Module D... Door N corresponds to Drive Control Module N). The remote control platform stores a door linkage control roadmap (such as Roadmap A, Roadmap B, Roadmap C...) obtained based on the analysis of the water flow direction in the civil air defense project. When the water level height detection sensor at any upstream position detects a water level overlimit signal, it issues a linkage instruction to preferentially close the upstream door to block the spread of flood water downstream in advance. This method enables each door 1 to no longer respond independently to water level changes, but to form an orderly linkage according to the internal space structure of the civil air defense project and the water flow propagation path, so as to construct a hierarchical water blocking barrier at the initial stage of local water ingress and reduce the risk of rapid spread of flood in the project.

[0093] The remote control platform further obtains meteorological forecast data, including rainstorm intensity, rainfall trend and meteorological warning level. When it is predicted that heavy rainfall will occur or the meteorological warning level reaches the set threshold, it issues a preliminary closing or pre-closing instruction to the intelligent civil air defense and flood prevention door system in advance, so that the door 1 enters the standby or semi-closed state before the actual water level rises significantly, thus reserving response time for subsequent full closing and linkage control, and improving the overall flood prevention system's ability to respond in advance to sudden heavy rainfall conditions.

[0094] The remote control platform restricts the action authority range of each door based on the positions of different doors in the civil air defense project, the designed water level grade and the risk area division, so that the operators in the risk area are only allowed to perform opening and closing operations on the doors 1 in the corresponding area; and the pre-plan trigger control instructions at the whole project level are uniformly issued by the remote control platform. Through this authority grading method, the on-site operation behavior is matched with the flood prevention zoning and risk level of the civil air defense project, avoiding the influence of local misoperations on the linkage effect of the overall flood prevention system, and at the same time ensuring that the opening and closing decisions of key doors 1 are concentrated under a unified control logic; when an abnormal state occurs during the closing action of a certain door 1, the remote control platform recalculates the water flow diffusion path based on the door linkage control roadmap and automatically readjusts the closing instruction sequence of other doors 1, so as to continue to construct an effective water blocking path by dynamically adjusting the linkage strategy of the remaining doors 1 in the case of abnormal operation of individual doors 1, and improve the flood prevention reliability and system robustness of the whole civil air defense project under complex or abnormal conditions.

[0095] The remote control platform has multiple pre-stored gate linkage control route maps based on different flood intrusion directions and water flow evolution paths within the civil defense project. The platform intelligently matches these route maps based on real-time water level detection sensor feedback, rainfall data, and water level change trends, selecting the linkage control route map with the highest matching degree as the execution strategy for this round. During execution, if the water level flow direction or water level change trend deviates significantly, the platform rematches and switches to a more suitable route map to update the linkage control sequence. Through this multi-route map pre-stored and dynamic matching mechanism, the remote control platform can automatically select the most advantageous gate 1 linkage closure path for different flood inflow directions, inflow intensities, and evolution speeds. This avoids the insufficient adaptability caused by a single path strategy during flood prevention. At the same time, it can correct the linkage sequence and control logic of gate 1 in real time when the flood situation changes, thereby improving the intelligence level, response flexibility, and overall safety redundancy capability of the entire civil defense project's flood prevention control.

[0096] In summary, this invention discloses an intelligent civil defense and flood prevention door equipment, system, and control method. The equipment uses the door body 1 as the core load-bearing structure for both flood prevention and civil defense functions. Through the coordinated configuration of the left door leaf 14, the right door leaf 15, and the door leaf drive mechanism 2, the door body 1 can be reliably opened and closed under different working conditions. Through the linkage design of the lower locking mechanism 18 and the bottom lifting sealing structure 3, after the door leaves 14 and 15 complete the closing action, they synchronously drive the edge sealing strip 31 and the ground sealing strip 32 to press down to the ground, thereby forming a stable and controllable ground seam sealing interface at the bottom of the door body. By adopting the technical solution of the present invention, the door body 1 can simultaneously form circumferential seal and central seal at the upper door frame 11, side door frame 13 and central seam position when closed. The central seam sealing structure 19, through the cooperation of the rubber strip groove 191, the central seam sealing rubber strip 192 and the pressing plate 193, constructs a reliable joint sealing interface between the left door leaf 14 and the right door leaf 15. At the same time, the bottom lifting sealing structure 3 completes controlled pressing under the drive of the lower locking mechanism 18 and the locking linkage mechanism 181, and confirms the sealing execution status in combination with the pressing status detection sensor. This effectively avoids the problem of traditional floodproof door bottom sealing relying on manual experience and the sealing status being imperceptible, and significantly improves the overall sealing reliability and structural stability of the door body 1 under high water level and high water head pressure conditions.

[0097] Furthermore, the system of this invention automates and intelligently performs the door opening and closing, locking and sealing processes by arranging water level height detection sensors, door opening and closing position detection sensors, and locking status detection sensors at key positions of the door body 1, and by using a drive control module to uniformly coordinate and control the door drive mechanism 2 and the lower locking mechanism 18. Moreover, by leveraging a remote control platform for centralized management of multiple civil defense and flood prevention door systems, and combining this with a door linkage control route map constructed based on the internal water flow direction analysis of civil defense projects, multiple doors 1 can be linked and closed in an orderly manner according to the flood intrusion path, and the control sequence can be dynamically adjusted when water level changes or abnormal conditions occur, thereby constructing an engineering-level intelligent flood prevention control system.

[0098] Therefore, this invention not only provides a flood-proof door solution integrating door leaf drive, locking execution, and bottom lifting sealing at the structural level, but also proposes a brand-new intelligent civil defense and flood-proof door system for civil defense engineering application scenarios at the system level. By deeply integrating the door structure design, sealing execution mechanism, and intelligent control logic, it realizes a technological leap from single-door passive protection to multi-door collaborative and intelligent linkage flood prevention. It has important engineering application value and industry promotion significance for improving the overall safety protection capability of civil defense projects under extreme rainfall, urban waterlogging, and sudden flood conditions.

[0099] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Under the concept of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent civil defense and flood prevention door device, characterized in that: Includes door body (1) and door leaf drive mechanism (2); The door body (1) includes a lower locking mechanism (18). The upper part and sides of the left and right door leaves (14, 15) are sealed to the corresponding upper door frame (11) and side door frame (13) by sealing strips. A center seam sealing structure (19) is provided at the center seam of the left and right door leaves (14, 15). A bottom lifting sealing structure (3) is provided between the bottom of the left and right door leaves (14, 15) and the lower door frame (12). The door drive mechanism (2) is connected to the left and right door panels (14, 15) and is used to drive the opening and closing of the left and right door panels (14, 15); The bottom lifting sealing structure (3) includes an edge sealing strip (31), a ground sealing strip (32), a sealing strip clamping plate (33), a movable pressure plate (34), a fixed baffle (35), and a connecting sleeve; The edge sealing strip (31) is fixed to the bottom of the left and right door panels (14, 15) by the sealing strip clip (33) and has a bent support structure formed in the horizontal direction. The bent support structure can provide lateral support when the edge sealing strip (31) is compressed. The ground sealing strip (32) is embedded in the bottom groove of the edge sealing strip (31). The movable pressure plate (34) is a force transmission component. Its lower end is set in the slot of the edge sealing strip (31), and its upper end is linked with the locking linkage mechanism (181) of the left and right door leaves (14, 15) through the connecting sleeve. It drives the lower locking mechanism (18) to drive the locking linkage mechanism (181) to perform the pressing action. When the locking linkage mechanism (181) moves down, it drives the edge sealing strip (31) and the ground sealing strip (32) to press down on the ground as a whole. The bottom lifting sealing structure (3) is provided with a fixed baffle (35) on the water-facing side as a rigid water-blocking surface. The edge sealing strip (31) is provided with a sealing strip baffle (36) on the outside. The edge sealing strip (31) is made of high-hardness EPDM material; the ground sealing strip (32) is made of high-compression EPDM material.

2. The intelligent civil defense and flood prevention door equipment according to claim 1, characterized in that, A diagonal rib structure is provided at the corner of the sealing strip at the bottom of the side door frame (13), and part of the sealing strip presses against the diagonal rib when the ground sealing strip (32) is pressed down.

3. The intelligent civil defense and flood prevention door equipment according to claim 1, characterized in that, The center seam sealing structure (19) includes a rubber strip groove (191) welded on the left door leaf (14) or the right door leaf (15), a center seam sealing rubber strip (192) installed in the rubber strip groove (191), and a pressing plate (193) installed on the left and right door leaves (14, 15).

4. The intelligent civil defense and flood prevention door equipment according to claim 1, characterized in that, The edge sealing strip at the bottom joint of the left and right door panels (14, 15) is provided with a limiting or pressure compensation structure to suppress the deformation gap of the edge sealing strip at the junction of the middle seam and the ground seam under water pressure.

5. The intelligent civil defense and flood prevention door equipment according to claim 1, characterized in that, The wall-penetrating hole of the handwheel (16) of the door body (1), the lower lock sleeve of the lower locking mechanism (18), and the installation area of ​​the lock rod and lock head are all provided with partial seals. The water-facing handle (17) of the door body (1) is provided with a seepage-proof gasket seal.

6. The intelligent civil defense and flood prevention door equipment according to claim 1, characterized in that, The left and right door panels (14, 15) are equipped with external locking rod structures on the water-facing side. After the door panels are closed, the external locking rods are extended outward by the handwheel (16) of the door body (1) or by the motor and engage with the corresponding locking base to share the force of the original built-in locking rod under high water pressure.

7. The intelligent civil defense and flood prevention door equipment according to claim 1, characterized in that, The door drive mechanism (2) adopts an external walking wheel drive structure (21). The external walking wheel drive structure (21) is located at the bottom of the left and right door panels (14, 15). The roller (211) is driven by a motor to roll and push the left and right door panels (14, 15) to open and close.

8. The intelligent civil defense and flood prevention door equipment according to claim 1, characterized in that, The door drive mechanism (2) adopts a curved arm slide type drive structure (22). The curved arm slide type drive structure (22) is located on the back side and converts the motor rotation motion into the opening and closing motion of the left and right door panels (14, 15) through the cooperation of the curved arm (221) and the slide (222).

9. The intelligent civil defense and flood prevention door equipment according to claim 1, characterized in that, The door drive mechanism (2) adopts a through-wall linkage drive structure (23). The through-wall linkage drive structure (23) includes a drive motor located on the back side, a first-stage reducer (231), and a universal joint (232) connected to the output end of the first-stage reducer (231). It also includes a vertical reducer (234), an output shaft rocker arm (235), and a connecting rod (236) located on the front side. The vertical reducer (234) and the universal joint (232) are connected through a through-wall rotating shaft (233).

10. An intelligent civil defense and flood prevention door system, comprising the intelligent civil defense and flood prevention door equipment as described in any one of claims 1-9, characterized in that, It also includes an intelligent control device, which includes a sensor module and a drive control module integrated on the door body (1), as well as a remote control platform. The sensor module includes a door opening and closing position detection sensor, a bottom lifting sealing structure pressing state detection sensor, and a water level height detection sensor. The drive control module controls the door drive mechanism (2) and the lower locking mechanism (18) according to the sensor module detection signal and the remote control platform instructions, so as to realize the linkage intelligent control of the opening and closing action and sealing action of the left and right door panels (14, 15).

11. The intelligent civil defense and flood prevention door system according to claim 10, characterized in that, The bottom lifting sealing structure compression state detection sensor is located at the bottom of the ground sealing strip (32). The bottom lifting sealing structure compression state detection sensor is used to detect the compression state of the ground sealing strip (32) and output a compression detection signal to the drive control module.

12. The intelligent civil defense and flood prevention door system according to claim 11, characterized in that, The drive control module is located inside the control box, which has an open / close button, a key management function, and an audible and visual alarm module to provide human-machine interaction and issue status prompts during the opening, closing, and sealing of the door.

13. The intelligent civil defense and flood prevention door system according to claim 12, characterized in that, The drive control module in the control box is electrically connected to the motor of the door drive mechanism (2) and the motor of the lower locking mechanism (18), and performs door opening, door closing, unlocking / locking through contactors, frequency converters and relays.

14. The intelligent civil defense and flood prevention door system according to claim 13, characterized in that, The sensor module also includes a locking rod travel detection sensor. After detecting the position of the corresponding mechanism, the sensor module sends a stop drive command trigger signal back to the drive control module.

15. The intelligent civil defense and flood prevention door system according to claim 14, characterized in that, The remote control platform is a building automation system, and the drive control module outputs door open position, door close position and fault alarm information to the building automation system through hard contact signals.

16. A control method for an intelligent civil defense and flood prevention door system based on claim 13 or 14, characterized in that, The drive control module performs the following steps: S1. When the water level detection sensor detects a water level exceeding the limit signal or a door closing linkage command issued by the remote control platform, the lower locking mechanism (18) is driven to unlock, causing the locking rod to retract. S2. After a preset delay, start the door closing drive motor to make the left and right door panels (14, 15) move in the closing direction; S3. Stop driving the left and right doors (14, 15) based on the closing position detection sensor feedback signal of the left and right doors (14, 15). S4. Drive the lower locking mechanism (18) to drive the locking linkage mechanism (181) to perform the pressing action, and confirm the pressing is in place according to the feedback of the pressing status detection sensor of the bottom lifting sealing structure (3). After the pressing is in place, drive the locking rod of the lower locking mechanism (18) to extend to complete the locking. S5. After the action is completed, the audible and visual alarm will stop and the door will be reported to the remote control platform as closed.

17. The control method for the intelligent civil defense and flood prevention door system according to claim 16, characterized in that, The closing and locking steps are performed sequentially on the left door leaf (14) and the right door leaf (15), and the closing and locking action of the right door leaf (15) is triggered by the locking of the left door leaf (14).

18. The control method for the intelligent civil defense and flood prevention door system according to claim 16 or 17, characterized in that, When the emergency stop button is pressed in any step, the drive control module immediately terminates the drive; when the door closing command is triggered again after the emergency stop is released, the system resumes execution from the interrupted step.

19. The control method for the intelligent civil defense and flood prevention door system according to claim 18, characterized in that, When the water level sensor detects a high water level signal during the control process, the drive control module automatically sends an alarm status to the remote control platform and allows remote linkage control.

20. The control method for the intelligent civil defense and flood prevention door system according to claim 16, characterized in that, Multiple intelligent civil defense and flood prevention gate systems are connected to the same remote control platform. The remote control platform stores a gate linkage control route map obtained based on the water flow direction analysis within the civil defense project. When the water level detection sensor at any upstream position detects a water level exceeding the limit signal, it issues a linkage command to prioritize closing the upstream gate in order to prevent floodwater from spreading downstream in advance.

21. The control method for the intelligent civil defense and flood prevention door system according to claim 20, characterized in that, The remote control platform further acquires meteorological forecast data, including rainstorm intensity, rainfall trend and meteorological warning level, and issues a pre-closing or pre-closing command to the intelligent civil defense and flood prevention door system in advance when heavy rainfall is predicted or the meteorological warning level reaches the set threshold.

22. The control method for the intelligent civil defense and flood prevention door system according to claim 20 or 21, characterized in that, The remote control platform restricts the scope of action permissions for each gate based on the location of different gates within the civil defense project, the design water level, and the risk zone division. This ensures that operators in the risk zone are only allowed to perform opening and closing operations on the gates within their corresponding area. Meanwhile, the remote control platform uniformly issues the pre-planned control commands for the entire project.

23. The control method for the intelligent civil defense and flood prevention door system according to claim 22, characterized in that, When an abnormal state occurs during the closing action of a certain gate, the remote control platform recalculates the water flow diffusion path based on the gate linkage control route map and automatically readjusts the closing command sequence of other gates.

24. The control method for the intelligent civil defense and flood prevention door system according to claim 20, characterized in that, The remote control platform has multiple gate linkage control route maps pre-stored based on different flood intrusion directions and water flow evolution paths within the civil defense project. The remote control platform intelligently matches each route map according to real-time water level height detection sensor feedback, rainfall data, and water level change trends, and selects the linkage control route map with the highest matching degree as the execution strategy for this round. During the execution process, if the water level flow direction or water level change trend deviates significantly, it rematches and switches to a more suitable route map to update the linkage control sequence.

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