Lifting pressure-tight seal type floodgate device, system and control method thereof

Abstract

This invention relates to a lifting and pressing sealing floodgate device, system, and control method. The device includes a door body and a door leaf drive mechanism. The door body includes a lower locking mechanism. A bottom lifting 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 and closing position detection sensor, a bottom lifting sealing structure pressing 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 according to 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 the floodgate 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 a lifting and pressing sealing floodgate device, 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. Firstly, the sealing at the bottom of the door has always been a weak point. Because the door needs to maintain a certain gap with the ground during opening and closing to avoid friction, the side and top sealing strips alone cannot effectively seal the large gaps at the bottom after the door is closed, making the bottom area a major leakage channel. Although some systems attempt to add sealing strips to the bottom, these are usually fixed installations. After long-term use, the sealing strips are prone to failure due to wear or uneven ground, making it difficult to guarantee a reliable seal under high water pressure. Under high water pressure, the sealing strips bear enormous compressive force, easily causing them to roll over, shift, or even detach from the sealing position, leading to instability of the sealing structure and leakage. The sealing adjustment of existing flood-proof doors is usually quite complex. For sealing problems caused by localized wear or uneven ground, it is often necessary to adjust or replace the entire sealing element, which is cumbersome, costly to maintain, and difficult to control in terms of adjustment precision. Secondly, existing locking mechanisms and sealing structures mostly rely on passive mechanical cooperation, lacking real-time sensing and feedback on the sealing and tightening status. This makes it difficult to accurately determine whether the door is truly in an effective flood-proof state under complex operating conditions. Furthermore, existing flood-proof door systems are primarily based on independent control of individual doors. Even those with electric opening / 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 overall water flow characteristics of the project. In multi-entry, multi-channel civil defense projects, when floodwaters intrude from different directions, existing technologies struggle to achieve orderly linkage and dynamic adjustment of multiple doors, easily leading to problems such as unreasonable closing sequences, localized delays, or misoperations. Simultaneously, existing systems have limited utilization of external risk factors such as meteorological information and water level trends, making it difficult to predict and control risks in advance. The overall flood-proof safety and intelligence level still need improvement. Summary of the Invention

[0004] In view of the above-mentioned defects in the existing technology, the present invention provides a lifting and pressing sealing flood door device, system and control method thereof. By optimizing the door sealing and locking execution structure and combining sensor monitoring and centralized control, the sealing reliability and control safety of the air 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: A lifting and pressing sealing floodproof door device includes a door body and a door leaf driving mechanism; the door body includes a lower locking mechanism, the upper part and sides of the left and right door leaves are respectively sealed to the corresponding upper door frame and side door frame through sealing strips, and 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; an embedded sealing groove is provided on the lower door frame, and the door leaf driving mechanism is connected to the left and right door leaves for driving the opening and closing of the left and right door leaves; the bottom lifting sealing structure includes a lifting pressure plate, an embedded sealing strip, a ground sealing strip, and a fixed baffle, the embedded sealing strip is fixed to the bottom of the lifting pressure plate, and the embedded sealing strip is pressed into the embedded sealing groove on the lower door frame under the pressure of the lifting pressure plate, thereby forming a first sealing structure; The ground sealing strip is connected to the back surface of the lifting pressure plate via a lifting adjustment mechanism. The bottom edge of the ground sealing strip is provided with a sealing lip. The lifting pressure plate is provided with an elastic pressure plate, which is used to press the sealing lip. The ground sealing strip is pressed against the lower door frame or the ground under the pressure of the lifting pressure plate, thereby forming a second sealing structure. The fixed baffle is fixed to the water-facing side of the lifting pressure plate, serving as a rigid water-blocking surface; The upper end of the lifting pressure plate is linked to 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 lifting pressure plate, the embedded sealing strip, the ground sealing strip, and the whole thing to press down to the ground or the lower door frame.

[0006] Furthermore, the lifting adjustment mechanism includes a fixed adjustment plate, which is fixed on the back surface of the lifting pressure plate. The fixed adjustment plate is provided with multiple adjustment threaded holes, and each adjustment threaded hole is provided with an adjustment screw. The lower end of all adjustment screws is connected to the ground sealing strip.

[0007] Furthermore, the lower end of the adjusting screw is rotatably connected to the lifting slider, and multiple lifting guide grooves are fixedly provided on the back surface of the fixed adjusting plate. An embedded protrusion is fixedly provided on the lifting slider, and the embedded protrusion is slidably limited within the lifting guide groove. The lower end of the adjusting screw is fixedly provided with a rotating connector, and the lower end of the adjusting screw is also fitted with a fixing cover. The top of the lifting slider is provided with a rotating mounting hole, the rotating connector is rotatably limited within the rotating mounting hole, and the fixing cover is fixed to the bottom of the lifting slider.

[0008] Furthermore, the bottom of the lifting pressure plate is also provided with a fixed embedding block, and the embedded sealing strip is a U-shaped sealing strip. The embedded sealing strip is fixed to the outer wall of the fixed embedding block. Both the embedded sealing strip and the ground sealing strip are made of EPDM material. Multiple connecting diagonal ribs are fixed on the water-facing surface of the lifting pressure plate, and the fixed baffle is fixed to the water-facing surface of the lifting pressure plate through the connecting diagonal ribs.

[0009] Furthermore, 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 and right door leaves; 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.

[0010] Furthermore, the left and right door panels 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 or motor of the door body and engage with the corresponding locking base to share the force of the original built-in locking rods under high water pressure.

[0011] Furthermore, the door drive mechanism adopts an externally mounted walking wheel drive structure or a curved arm sliding groove drive structure; The external walking wheel drive structure is located at the bottom of the left and right door panels, and the rollers are driven by a motor to open and close the left and right door panels. The articulated arm sliding drive structure is located on the backwater side, and the rotational motion of the motor is converted into the opening and closing motion of the left and right doors through the cooperation of the articulated arm and the sliding groove.

[0012] Furthermore, the door drive mechanism adopts 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, as well as 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.

[0013] The present invention also provides a lifting and pressing sealing floodgate system, which includes the above-mentioned lifting and pressing sealing floodgate 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 and sealing structure pressing status detection sensor, and a water level height detection sensor. The drive control module controls the door drive mechanism and the lower locking mechanism according to the sensor module detection signal and the remote control platform command, so as to realize the linkage intelligent control of the left and right door opening and closing actions and sealing actions; Multiple lifting and pressing sealing floodgate 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 in 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. The remote control platform is used to acquire meteorological forecast data, including rainstorm intensity, rainfall trend and meteorological warning level, and when heavy rainfall is predicted or the meteorological warning level reaches a set threshold, it issues a pre-closing or pre-closing command to the lifting and pressing sealing floodproof door system in advance. 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. 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. 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.

[0014] The present invention also provides a control method based on the above-mentioned lifting and pressing sealing floodgate system, wherein the drive control module executes the following steps: 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. S2. After a preset delay, start the door closing drive motor to move the left and right door panels in the closing direction; 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; 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. 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.

[0015] This invention proposes a lifting and pressing sealing floodgate device, system, and control method. Compared with the prior art, the advantages of this invention are as follows: (1) The present invention provides a bottom lifting sealing structure at the bottom of the door, which uses a fixed baffle on the water-facing side of the lifting pressure plate as a rigid water-blocking surface. When the door is subjected to water pressure, the fixed baffle can block most of the water pressure and directly act on the water pressure load, thereby significantly reducing the water pressure burden on the embedded sealing strip and the ground sealing strip. This effectively protects the sealing strip, preventing it from prematurely fatigued or damaged due to excessive pressure, and significantly improves the stability and service life of the sealing structure under high pressure. The bottom lifting sealing structure adopts a design that combines the first sealing structure and the second sealing structure. Even if the first seal leaks slightly under extreme conditions, the second seal can effectively intercept it, forming a double guarantee, which greatly improves the anti-leakage capability of the bottom of the door and ensures absolute sealing under flood pressure. The sealing lip set at the bottom edge of the ground sealing strip cooperates with the elastic pressure plate set on the lifting pressure plate. The elastic pressure plate consistently presses the sealing lip, effectively preventing the ground-mounted sealing strip from rolling over or becoming unstable when subjected to water pressure. This ensures the sealing strip remains in the optimal pressure-sealing posture, maintaining a stable sealing effect. A unique lifting adjustment mechanism allows for independent and precise adjustment of the height of the ground-mounted sealing strip at different positions. When the sealing strip experiences localized wear due to long-term use or encounters uneven installation surfaces, there's no need to replace the entire strip. Simply adjust the corresponding adjusting screw to re-press the sealing strip tightly against the ground. This local compensation function significantly improves the sealing effect, reduces maintenance costs and difficulty, and offers flexible and convenient operation, quickly adapting to various complex ground conditions. The structure achieves overall downward pressure through a locking linkage mechanism driven by the lower locking mechanism, forming an active pressure seal with the ground. This not only effectively compensates for gaps caused by door installation errors and uneven ground but also maintains a stable seal 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.

[0016] (2) The present invention integrates a door opening and closing position detection sensor, a bottom lifting and sealing structure pressing status detection sensor and a water level height detection sensor on the door body. The drive control module coordinates and controls the door driving mechanism and the lower locking mechanism in a unified manner, so that the door closing, bottom lifting and sealing structure pressing and locking processes are completed automatically in sequence according to the preset logic. The locking action is performed only after the sealing and pressing status 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 lifting and pressing sealing flood prevention door under complex flood conditions.

[0017] (3) This invention establishes a communication connection with multiple lifting and pressing sealing floodgate 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 the 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 combination 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

[0018] Figure 1 This is a schematic diagram of the water-facing structure of the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0019] Figure 2 for Figure 1 A cross-sectional view of AA.

[0020] Figure 3 for Figure 1 A cross-sectional view of BB.

[0021] Figure 4 This is a front view of the backwater structure of the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0022] Figure 5 This is a top view of the backwater structure of the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0023] Figure 6 This is a side view of the backwater structure of the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0024] Figure 7This is a three-dimensional schematic diagram of the water-facing side of the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0025] Figure 8 This is a three-dimensional schematic diagram of the backwater surface of the intelligent lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0026] Figure 9 This is a schematic diagram of the bottom lifting sealing structure of the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0027] Figure 10 This is a partial schematic diagram of the bottom lifting and sealing structure of the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0028] Figure 11 This is a schematic diagram of the adjusting screw of the bottom lifting sealing structure of the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0029] Figure 12 This is a schematic diagram of the external walking wheel drive structure of the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0030] Figure 13 This is a schematic diagram of the crank arm sliding drive structure of the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0031] Figure 14 This is a schematic diagram of the through-wall linkage drive structure of the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0032] Figure 15 This is a flowchart illustrating the control method of a lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0033] Figure 16 This is a schematic diagram of the connection of the drive control module of the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0034] Figure 17 This is a schematic diagram of the remote control platform connection for the lifting and pressing sealing floodgate device according to an embodiment of the present invention.

[0035] 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-Rubber strip groove; 192-Center seam sealing rubber strip; 193-Embedding plate; 2-Door leaf drive mechanism; 21-External hanging walking wheel drive structure; 211-Roller; 22-Crank arm sliding groove drive structure; 221-Crank arm; 222-Sliding groove; 23-Through-wall linkage drive Moving 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-Lifting pressure plate; 311-Fixed embedded block; 32-Embedded sealing strip; 33-Ground sealing strip; 331-Sealing lip; 35-Adjusting screw; 351-Rotating connector; 352-Fixed baffle; 353-Connecting rib; 36-Lifting slider; 361-Rotating mounting hole; 362-Fixed cover; 363-Embedded protrusion. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] like Figure 1-8 As shown in the figure, this embodiment discloses a lifting and pressing sealing floodgate device, including a door body 1 and a door leaf drive mechanism 2, wherein the door body 1 serves as the main load-bearing structure of the lifting and pressing sealing floodgate device, and is used to reliably seal the passage under flood or wartime conditions.

[0039] 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. 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. 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. 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. like Figure 9-11 As shown, the bottom lifting sealing structure 3 includes a lifting pressure plate 31, an embedded sealing strip 32, a ground sealing strip 33, and a fixed baffle 352. The embedded sealing strip 32 and the ground sealing strip 33 are both made of EPDM material. The upper end of the lifting pressure plate 31 is linked to the locking linkage mechanism 181 of the left and right door leaves 14 and 15 through a connecting sleeve. When the locking linkage mechanism 181 moves down, it drives the lifting pressure plate 31, the embedded sealing strip 32, the ground sealing strip 33, and the whole structure to press down to the ground or the lower door frame 12. The lower locking mechanism 18 can move laterally under the drive of the handwheel, thereby driving the lower end of the vertical rod to move up and down through the locking linkage mechanism 181, which in turn drives the lifting pressure plate 31 to move up and down, realizing the opening and closing of the bottom lifting sealing structure 3. After the bottom lifting sealing structure 3 is opened, the left door 14 and the right door 15 open or close. After the bottom lifting sealing structure 3 is closed, the waterproof seal at the bottom of the left door 14 and the right door 15 is completed. The handwheel can also be rotated under the drive of the drive motor and belt transmission mechanism. The process of the lower locking mechanism 18 driving the lifting pressure plate 31 to move up and down through the locking linkage mechanism 181 is existing technology and will not be described in detail here.

[0040] The embedded sealing strip 32 is fixed to the bottom of the lifting pressure plate 31. The embedded sealing strip 32 is used to be pressed into the embedded sealing groove (not shown in the figure) on the lower door frame 12 under the pressure of the lifting pressure plate 31, thereby forming a first sealing structure. The bottom of the lifting pressure plate 31 is also provided with a strip-shaped fixed embedded block 311. The fixed embedded block 311 and the lifting pressure plate 31 are an integrated structure. The embedded sealing strip 32 is a U-shaped sealing strip and a flexible sealing strip. The embedded sealing strip 32 is fixed to the outer wall of the fixed embedded block 311 and covers the remaining positions except for the connection with the lifting pressure plate 31. When the lifting pressure plate 31 is pressed down, the lower end of the fixed embedded block 311 is partially or completely embedded into the embedded sealing groove on the lower door frame 12. At this time, the embedded sealing strip 32 is squeezed into the embedded sealing groove by the fixed embedded block 311. The embedded sealing strip 32 elastically fills the gap between the embedded sealing groove and the fixed embedded block 311, thereby achieving the primary sealing effect of the bottom lifting sealing structure 3.

[0041] The ground-mounted sealing strip 33 is connected to the back surface of the lifting pressure plate 31 via a lifting adjustment mechanism. The bottom edge of the ground-mounted sealing strip 33 is provided with a sealing lip 331. The lifting pressure plate 31 is provided with an elastic pressure plate, which is used to press the sealing lip. The ground-mounted sealing strip 33 is pressed against the lower door frame or the ground under the pressure of the lifting pressure plate 31, thereby forming a second sealing structure. The elastic pressure plate has a bent support structure formed in the horizontal direction. The upper end of the elastic pressure plate is fixed to the lifting pressure plate 31. Its bent support structure gives the elastic pressure plate elasticity in the vertical direction. When not under pressure, its lower part extends slightly downward to below the ground-mounted sealing strip 33. When the lifting pressure plate 31 is pressed down, the elastic pressure plate first presses the sealing lip 331, and then the rest of the ground-mounted sealing strip 33 is pressed against the lower door frame or the ground. The elastic pressure plate can provide additional elastic lateral pressure on the back water side edge of the ground sealing strip 33 after the lifting pressure plate 31 is fully pressed down. It can effectively limit the ground sealing strip 33 from rolling over or becoming unstable on the back water side, and further improve the sealing ability of the ground sealing strip 33.

[0042] The bottom lifting sealing structure 3 features a double-layer sealing structure. Even if the first seal experiences minor leakage in extreme conditions, the second seal can effectively intercept it, forming a double guarantee. This greatly improves the leak-proof capability of the bottom of the door, ensuring absolute sealing under high flood pressure. The sealing lip at the bottom edge of the ground sealing strip cooperates with the elastic pressure plate on the lifting pressure plate. The elastic pressure plate can always press the sealing lip tightly, effectively preventing the ground sealing strip from rolling over or becoming unstable on the back side when subjected to water pressure. This ensures that the sealing strip is always in the optimal pressure sealing posture, maintaining a continuous and stable sealing effect.

[0043] The fixed baffle 352 is fixed to the water-facing side of the lifting pressure plate 31, serving as a rigid water-blocking surface. The fixed baffle 352 is fixed to the water-facing surface of the lifting pressure plate 31 via connecting diagonal ribs 353. When the door is subjected to water pressure, the fixed baffle 352 can block most of the water pressure, directly acting on the water pressure load, thereby significantly reducing the water pressure burden acting on the embedded sealing strip and the ground sealing strip.

[0044] The lifting and adjusting mechanism includes a fixed adjusting plate 34, which is fixed on the back surface of the lifting pressure plate 31. The fixed adjusting plate 34 is provided with multiple adjusting threaded holes, and each adjusting threaded hole is threaded with an adjusting screw 35. The lower ends of all adjusting screws 35 are connected to the ground sealing strip 33.

[0045] The lower end of the adjusting screw 35 is rotatably connected to the lifting slider 36. Multiple lifting guide grooves are also fixed on the back surface of the fixed adjusting plate 34. An embedded protrusion 363 is fixed on the lifting slider 36, and the embedded protrusion 363 is slidably limited within the lifting guide groove. A rotating connector 351 is fixed on the lower end of the adjusting screw. A fixing cover 362 is also sleeved on the lower end of the adjusting screw 35. A rotating mounting hole 361 is provided on the top of the lifting slider 36. The rotating connector 351 is rotatably limited within the rotating mounting hole 361. The fixing cover 362 is fixed to the bottom of the lifting slider 36. When the adjusting screw 35 is rotated, the engagement between the adjusting screw 35 and the adjusting threaded hole allows the adjusting screw 35 to rise and fall. The rotating engagement structure of the embedded protrusion 363 and the rotating connector 351 prevents the lifting slider 36 from rotating and ensures that the lifting slider 36 rises and falls synchronously with the adjusting screw. When all adjusting screws 35 are adjusted synchronously, the ground sealing strip 33 can be raised and lowered as a whole to match the height of the ground or lower door frame 12, improving the flexibility of the bottom lifting sealing structure 3. When the ground sealing strip experiences localized wear due to long-term use, or encounters uneven installation ground, there is no need to replace the entire sealing strip. Simply adjust the adjusting screw 35 at the corresponding position to allow the sealing strip to re-adhere tightly to the ground. At this time, a corrugated structure can be formed locally on the ground sealing strip to compensate for localized wear or uneven installation ground. This local compensation function greatly improves the sealing effect, reduces maintenance costs and difficulty, and is flexible and convenient to operate, quickly adapting to various complex ground conditions. This structure achieves overall downward pressure under the action of the locking linkage mechanism driven by the lower locking mechanism, forming an active compression seal with the ground. It can not only effectively compensate for the gap problems caused by door installation errors and uneven ground, but also maintain 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] It should be noted that the bottom lifting sealing structure 3 is sealed to the side walls of the left and right door panels 14 and 15 by elastic patches (not shown). When the lifting pressure plate 31 rises and falls, the back surface of the fixed adjustment plate 34 rises and falls relative to the elastic patches on the surfaces of the left and right door panels 14 and 15. The fixed adjustment plate 34 always presses the elastic patches on the surfaces of the left and right door panels 14 and 15, thus ensuring the sealing and waterproof function of the bottom lifting sealing structure 3 and the left and right door panels 14 and 15.

[0047] 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.

[0048] In this embodiment, local seals are provided in the wall-penetrating hole of the handwheel 16, the lower locking sleeve of the lower locking mechanism 18, and the installation area of ​​the locking rod and 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-penetrating parts and the installation holes of moving parts. This effectively prevents water from seeping into the structural gaps when the handwheel 16 is driven, the lower locking mechanism 18 is activated, and the water-facing handle 17 is under force, thereby improving the overall waterproof safety of the door under high water conditions.

[0049] 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.

[0050] The door drive mechanism 2 can take many forms, such as Figure 12As 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 , 13 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 14 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.

[0051] This invention also discloses a lifting and pressing sealing floodgate system, including the aforementioned lifting and pressing sealing floodgate device, 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 pressing 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 pressing status detection sensor is used to confirm whether the sealing structure has been pressed, 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.

[0052] Furthermore, a bottom lifting sealing structure compression state detection sensor is installed at the bottom of the ground sealing strip 33. The bottom lifting sealing structure compression state detection sensor is used to output a detection signal when the ground sealing strip 33 is in full contact with the ground and reaches the predetermined compression state, and outputs a compression detection signal to the drive control module to determine whether the bottom seal has been performed in place.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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 lifting and pressing sealing floodproof door system can be connected to the existing building automation monitoring system to realize centralized monitoring and remote linkage control of the operating status.

[0057] Please see Figure 15 Another embodiment of the present invention discloses a control method based on the above-described lifting and pressing sealing floodgate system, wherein the drive control module executes the following steps: 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. 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. 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. 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 the embedding of the sealing strip 32 and the ground sealing strip 33 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. 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 lifting and pressing sealing floodproof door in real time, completing a complete door closing and sealing linkage control process.

[0058] 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.

[0059] like Figure 16-17As 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 status of multiple doors 1 (such as Door A, Door B, Door C, Door D... Door N), so as to achieve cross-door collaborative flood prevention response when the flood level rises rapidly. Multiple lifting and pressing sealed 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, and 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 makes each door 1 no longer respond independently to the water level change, but forms an orderly linkage according to the internal space structure of the civil air defense project and the water flow propagation path, so as to build 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.

[0060] The remote control platform further obtains meteorological forecast data, including rainstorm intensity, rainfall trend and meteorological warning level, and 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 lifting and pressing sealed flood prevention door system in advance, so that the door 1 enters the waiting 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 to sudden heavy rainfall conditions in advance.

[0061] 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 build 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.

[0062] 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.

[0063] In summary, this invention discloses a lifting and pressing sealing floodproof door device, system, and control method. The device 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, right door leaf 15, and door leaf drive mechanism 2, reliable opening and closing of the door body 1 under different working conditions is achieved. Furthermore, 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 embedded sealing strip 32 and the ground-mounted sealing strip 33 downwards to press against the ground, thereby forming a stable and controllable ground seam sealing interface at the bottom of the door body. Using the technical solution of this invention, the door body 1, in the closed state, can simultaneously press against the upper door frame 1. 1. The side door frame 13 and the center seam position form a circumferential seal and a center seam seal. The center seam sealing structure 19, through the cooperation of the rubber strip groove 191, the center seam sealing rubber strip 192 and the pressure 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 conjunction 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.

[0064] Furthermore, the system of this invention automates and intelligently performs the door opening, closing, locking, and sealing processes by arranging water level height detection sensors, door opening / closing position detection sensors, and locking status detection sensors at key locations on 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 lifting and pressing sealing floodproof door systems, combined 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 floodproof control system.

[0065] 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 lifting and pressing sealing 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 engineering under extreme rainfall, urban waterlogging, and sudden flood conditions.

[0066] 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. A lifting, pressing, and sealing floodgate 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). An embedded sealing groove is provided on 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 a lifting pressure plate (31), an embedded sealing strip (32), a ground sealing strip (33), and a fixed baffle (352). The embedded sealing strip (32) is fixed to the bottom of the lifting pressure plate (31). The embedded sealing strip (32) is used to be pressed into the embedded sealing groove on the lower door frame (12) under the pressure of the lifting pressure plate (31), thereby forming the first sealing structure. The ground sealing strip (33) is connected to the back surface of the lifting pressure plate (31) through a lifting adjustment mechanism. The bottom edge of the ground sealing strip (33) is provided with a sealing lip (331). The lifting pressure plate (31) is provided with an elastic pressure plate, which is used to press the sealing lip. The ground sealing strip (33) is used to be pressed against the lower door frame or the ground under the pressure of the lifting pressure plate (31), thereby forming a second sealing structure. The fixed baffle (352) is fixed to the water-facing side of the lifting pressure plate (31) and serves as a rigid water-blocking surface; The upper end of the lifting pressure plate (31) is linked with the locking linkage mechanism (181) of the left and right door leaves (14, 15) through the connecting sleeve. When the locking linkage mechanism (181) moves down, it drives the lifting pressure plate (31), the embedded sealing strip (32), the ground sealing strip (33), and the whole thing to press down to the ground or the lower door frame (12).

2. The lifting and pressing sealing floodgate device according to claim 1, characterized in that: The lifting adjustment mechanism includes a fixed adjustment plate (34), which is fixed on the back surface of the lifting pressure plate (31). The fixed adjustment plate (34) is provided with multiple adjustment thread holes, and each adjustment thread hole is threaded with an adjustment screw (35). The lower ends of all adjustment screws (35) are connected to the ground sealing strip (33).

3. The lifting and pressing sealing floodgate device according to claim 2, characterized in that: The lower end of the adjusting screw (35) is rotatably connected to the lifting slider (36). Multiple lifting guide grooves are also fixed on the back surface of the fixed adjusting plate (34). An embedded protrusion (363) is fixed on the lifting slider (36), and the embedded protrusion (363) is slidably limited within the lifting guide groove. The lower end of the adjusting screw (35) is fixedly provided with a rotating connector (351), and the lower end of the adjusting screw (35) is also fitted with a fixing cover (362). The top of the lifting slider (36) is provided with a rotating mounting hole (361). The rotating connector (351) is limited to rotating within the rotating mounting hole (361). The fixing cover (362) is fixed to the bottom of the lifting slider (36).

4. The lifting and pressing sealing floodgate device according to claim 3, characterized in that: The bottom of the lifting pressure plate (31) is also provided with a fixed embedding block (311). The embedded sealing strip (32) is a U-shaped sealing strip. The embedded sealing strip (32) is fixed to the outer wall of the fixed embedding block (311). The embedded sealing strip (32) and the ground sealing strip (33) are both made of EPDM material. Multiple connecting diagonal ribs (353) are fixed on the water-facing surface of the lifting pressure plate (31). The fixed baffle (352) is fixed to the water-facing surface of the lifting pressure plate (31) through the connecting diagonal ribs (353).

5. The lifting and pressing sealing floodgate device 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). 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 lifting and pressing sealing floodgate device 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 lifting and pressing sealing floodgate device according to claim 1, characterized in that, The door drive mechanism (2) adopts an external walking wheel drive structure (21) or a curved arm slide type drive structure (22). The external walking wheel drive structure (21) is located at the bottom of the left and right door panels (14, 15), and the roller (211) is driven by a motor to roll and push the left and right door panels (14, 15) to open and close. The crank arm chute drive structure (22) is located on the back side, and the rotational motion of the motor is converted into the opening and closing motion of the left and right door panels (14, 15) through the cooperation of the crank arm (221) and the chute (222).

8. The lifting and pressing sealing floodgate device 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).

9. A lifting and pressing sealing floodgate system, comprising the lifting and pressing sealing floodgate device according to any one of claims 1-8, 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); Multiple lifting and pressing sealing floodgate 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 in 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. The remote control platform is used to acquire meteorological forecast data, including rainstorm intensity, rainfall trend and meteorological warning level, and when heavy rainfall is predicted or the meteorological warning level reaches a set threshold, it issues a pre-closing or pre-closing command to the lifting and pressing sealing floodproof door system in advance. 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. 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. 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.

10. A control method for a lifting and pressing sealing floodgate system based on claim 9, 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.

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