Intelligent control anti-flooding protective air-tight door for entrance and exit of subway station

Abstract

The invention discloses a subway station entrance and exit intelligent control anti-flooding protective airtight door, and relates to the technical field of civil air defense engineering protection, the subway station entrance and exit intelligent control anti-flooding protective airtight door comprises a door body, the door body comprises a door frame and a door leaf, the bottom of the door frame is opened, the door leaf is arranged in the door frame, and an electric airtight split hinge structure is arranged on the door frame; the electric closed split hinge structure is used for controlling the door leaf to be opened or closed, and a sealing structure is arranged on the door leaf and used for sealing the door body. Automatic opening or closing of the door leaf can be achieved, the convenience of opening and closing movement of the door leaf is enhanced, and meanwhile the watertight performance is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of civil air defense engineering protection, and in particular to an intelligently controlled anti-flooding protective closed door for a subway station entrance and exit. Background Art

[0002] In addition to meeting the needs of daily travel, subway stations also need to have a disaster prevention function. For example, in areas with frequent rainfall, when a city encounters extreme rainfall and the roads are flooded, the subway will be flooded. The traditional subway anti-flooding closed doors have a certain ability to prevent flooding. When the water volume is not large, the subway closed doors can be closed as a temporary water blocking facility, but they cannot be used as flood control and flood prevention facilities to withstand large amounts of water.

[0003] In the prior art, for example, the Chinese invention patent application with application publication number CN114320125A discloses a threshold-free lifting and sealing system for subway and tunnel mainline protection equipment, which uses a lifting and lowering sealing beam set on the door leaf of the protection door. After the subway protection door is closed, the sealing beam is lowered so that the sealing beam seals the space at the bottom of the door body. The Chinese invention patent application with application publication number CN116905933A discloses an intelligent subway entrance and exit flood-proof protective closed door, which further improves the sealing effect of the sealing beam through structural improvement.

[0004] However, the above-mentioned opening and closing drive mechanism has the problem of manual operation to remove the pin in terms of manual and electric conversion; the electric cylinder drive system has certain difficulties in the electric structure layout, such as large rotation radius, complex electric structure, and difficulty in arranging the power source, and requires certain hidden door-style civil engineering conditions for layout; the sealing strip of the existing structure is an embedded sponge strip, which has high requirements on installation accuracy and the compression amount of the sealing strip is small. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides an intelligently controlled flood-proof protective closed door for the entrance and exit of a subway station, which can realize automatic opening or closing of the door leaf, enhance the convenience of opening and closing the door leaf, and at the same time, improve the watertight performance.

[0006] To achieve the above object, the present invention can be carried out by adopting the following technical solutions: The present invention provides a subway station entrance and exit intelligently controlled flood-proof protective closed door, which comprises: The door body comprises a door frame and a door leaf, wherein the bottom of the door frame is open and the door leaf is arranged in the door frame; The door frame is provided with an electric sealed split hinge structure, and the electric sealed split hinge structure is used to control the opening or closing of the door leaf; The door leaf is provided with a sealing structure, and the sealing structure is used for sealing the door body.

[0007] As mentioned above, the intelligently controlled flood-proof protective closed door at the entrance and exit of a subway station, further, the electric closed split hinge structure includes a driving mechanism, the driving mechanism includes a motor, the motor is connected to a reducer, the reducer is connected to an electromagnetic clutch, and the electromagnetic clutch is connected to the door leaf through a spline shaft hinge seat.

[0008] As for the above-mentioned subway station entrance and exit intelligent control anti-flooding protective closed door, further, the electric closed split hinge structure includes a composite hinge mechanism, the composite hinge mechanism includes a base and a load-bearing arm, the base is connected to the existing building, and the load-bearing arm is fixedly connected to the door leaf; Among them, the load-bearing arm is connected to a load-bearing shaft, and the load-bearing shaft is connected to a translation support through a thrust roller self-aligning bearing, and the load-bearing shaft drives the translation support to move under the action of a driving mechanism to realize the rotation of the door leaf; the base is connected to a load-bearing support, and the load-bearing support is connected to a guide support, and a linear motion needle bearing is arranged in the guide support, and the linear motion needle bearing and the translation support have rolling friction under the action of a driving mechanism to realize the translation of the door leaf.

[0009] As for the above-mentioned intelligently controlled flood-proof protective closed door at the entrance and exit of a subway station, further, the composite hinge mechanism also includes a door hinge seat, the door hinge seat is fixedly connected to the door leaf, the door hinge seat is connected to a hinge plate via a needle bearing, the hinge plate is connected to the hinge seat via a hinge shaft and a rolling bearing, and the hinge seat is fixedly connected to the base.

[0010] As for the above-mentioned intelligently controlled flood-proof protective closed door for entrances and exits of subway stations, further, a stopper is arranged on the hinge seat.

[0011] As in the above-mentioned intelligently controlled flood-proof protective closed door for subway station entrances and exits, further, the reducer is fixed by a reducer mounting seat, and a reinforcement plate is provided on the side of the reducer mounting seat facing the mounting surface.

[0012] As for the above-mentioned subway station entrance and exit intelligent control flood protection closed door, further, the sealing structure includes a middle seam sealing structure, and the middle seam sealing structure includes a door leaf angle steel, a first sealing strip and a second sealing strip; The door leaf angle steel is composed of a main beam and a secondary beam, the main beam is arranged vertically, and the secondary beam is arranged between two adjacent main beams; The door leaf angle steel is connected with a steel plate and a first pressing plate, the steel plate is provided with the first sealing strip, and the first sealing strip is fixed by the first pressing plate; The door leaf angle steel is also connected to a support plate and a second pressure plate, the second sealing strip is arranged between the support plate and the second pressure plate, and a plurality of reinforcing ribs are arranged on the support plate; Among them, when the electric closed split hinge structure drives the door leaf to close, the door leaf angle steel is subjected to force so that the first sealing strip on the steel plate is squeezed, and the second sealing strip is squeezed by the support plate and the second pressure plate at the same time, so that the door leaves and the door leaves and the door frame fit together, thereby achieving sealing of the center seam of the door leaf.

[0013] As for the above-mentioned subway station entrance and exit intelligent control flood protection closed door, further, the sealing structure also includes a surrounding sealing structure, and the surrounding sealing structure includes a door leaf angle steel, a second sealing strip and a third sealing strip; The second sealing strip is fixed between the door leaf angle steel and the door frame via a second pressing plate, and the third sealing strip is arranged close to the second sealing strip and connected to the edge of the door leaf; Among them, when the electric closed split hinge structure drives the door leaf to close, the door leaf angle steel is subjected to force so that the second sealing strip is squeezed by the second pressure plate, and the third sealing strip is squeezed by the door leaf and the door frame, so that the door leaf fits around the door frame and the door leaf is sealed on all sides.

[0014] The above-mentioned intelligent control flood-proof protective closed door for subway station entrances and exits further includes a lifting and locking sealing structure, wherein the lifting and locking sealing structure includes a lifting and driving mechanism, wherein the lifting and driving mechanism includes a lifting beam, wherein the lifting beam is connected to a sealing beam, and an oblique support rod is further connected between the lifting beam and the sealing beam; Wherein, the lifting beam is arranged transversely, the sealing beam is arranged parallel to the lifting beam and is located on a side close to the door leaf, and a second sealing strip is arranged on the bottom of the sealing beam and on a side facing the door leaf; When the door leaf is closed, the sealing beam descends along with the lifting beam and presses the second sealing strip, so that the gap between the lower edge of the door leaf and the ground is sealed; When the door leaf is in a sealed state, the oblique support rod provides the sealing beam with a supporting force in a direction toward the bottom and the door leaf.

[0015] As mentioned above, the intelligently controlled flood-proof protective closed door of the subway station entrance and exit, further, the lifting locking sealing structure includes a locking mechanism, the locking mechanism includes a locking column, a locking seat and a locking sleeve, the locking column is connected to the lifting beam, the locking seat is arranged below the door frame, and the locking sleeve is arranged on the door leaf for the locking column to pass through.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets an electric closed split hinge structure, which has a large opening and closing torque and a small layout space, can optimize the civil engineering size, reduce the civil engineering excavation cost, and is suitable for the use characteristics and layout requirements of the anti-flooding protection door of the subway civil air defense project; 2. The present invention can realize automatic opening and closing of the door leaf by automatically switching between electric and manual operation modes through the electromagnetic clutch, thereby enhancing the convenience of the door leaf switch movement and realizing timely and rapid opening and closing in emergency situations; 3. The center seam of the present invention adopts two sealing measures of overlapping rubber strips and P-type natural rubber strips, while the surrounding edges adopt edge sealing treatment of P-type natural rubber strips and silicone rubber, thereby realizing two-way flood prevention inside and outside the door leaf and improving watertight performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a front structural schematic diagram of a closed door in an embodiment of the present invention; Figure 2 This is a schematic diagram of the back structure of the closed door in an embodiment of the present invention; Figure 3 It is a schematic diagram of the top view of the closed door in an embodiment of the present invention; Figure 4 It is an overall schematic diagram of the electric closed split hinge structure in an embodiment of the present invention; Figure 5 It is a schematic diagram of the upper part of the electric closed split hinge structure in the embodiment of the present invention; Figure 6 It is a schematic diagram of the lower part of the electric closed split hinge structure in the embodiment of the present invention; Figure 7 for Figure 3 The enlarged view of point A in the middle; Figure 8 for Figure 3 The enlarged view of point B in the middle; Fig. 9 A side view of a lifting and locking sealing structure in an embodiment of the present invention; Fig.10 for Fig. 9 Enlarged view of point C in the middle; Fig.11 It is a waterproof schematic diagram of the connecting fastener in an embodiment of the present invention; Fig.12This is a schematic diagram of the layout dimensions of the door leaf angle steel in an embodiment of the present invention; In the figure, 1, door frame; 2, electric closed split hinge structure; 3, door leaf; 4, lifting locking sealing structure; 21, motor; 22, reducer; 23, electromagnetic clutch; 24, spline shaft hinge seat; 25, reducer mounting seat; 26, load-bearing arm; 27, composite hinge mechanism; 28, load-bearing shaft; 29, door leaf hinge seat; 30, hinge plate; 31, door panel; 32, door leaf angle steel; 41, first sealing strip; 42, first pressure plate; 43, steel plate; 44, support plate; 45, second sealing strip; 46, reinforcing rib plate; 47, second pressure plate; 211, coupling; 221, involute spline shaft; 231, spline shaft; 232, first hexagon socket Cylindrical head screw; 233, pin; 251, stud; 252, anchor plate; 253, reinforcement plate; 271, load-bearing support; 272, guide support; 273, translation support; 274, hinge seat; 275, hinge shaft; 276, base; 277, thrust roller self-aligning bearing; 278, linear motion needle bearing; 279, rolling bearing; 280, stopper; 281, second hexagon socket head screw; 411, lifting beam; 412, sealing beam; 413, oblique support rod; 414, locking column; 415, locking seat; 416, locking sleeve; 417, third sealing strip; 51, waterproof cap; 52, waterproof material; 53, bolt hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] Example: It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations of the embodiments of the present invention are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or devices is not necessarily limited to those steps or devices clearly listed, but may include other steps or devices that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly defined. In addition, unless otherwise clearly defined and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] The present invention provides an intelligently controlled flood-proof and sealed door for entrances and exits of a subway station, comprising a door body, wherein the door body comprises a door frame 1 and a door leaf 3, the bottom of the door frame 1 is opened, the door leaf 3 is arranged in the door frame 1, an electric sealed split hinge structure 2 is arranged on the door frame 1, the electric sealed split hinge structure 2 is used to control the opening or closing of the door leaf 3, and a sealing structure is arranged on the door leaf 3, and the sealing structure is used to seal the door body.

[0025] Specifically, see Figure 1 and Figure 2The door frame 1 of the sealed door of the present invention is sealed and connected to the wall of the subway station. At the same time, the bottom of the door frame 1 is open, that is, there is no threshold at the bottom of the door frame 1. In this way, a gap between the threshold and the door leaf 3 can be avoided, thereby preventing water leakage. The door leaf 3 of the present invention is divided into a left door and a right door, wherein the electric sealed split hinge structure 2 is installed at the connection between the left door / right door and the door frame 1. In this way, the door leaf 3 can be automatically opened or closed, and the convenience of opening and closing the door leaf 3 is enhanced. At the same time, sealing measures are also adopted in the door leaf 3, which can greatly improve the watertight performance.

[0026] As an optional implementation, in some embodiments, the electric closed split hinge structure 2 includes a driving mechanism, which includes a motor 21, the motor 21 is connected to a reducer 22, the reducer 22 is connected to an electromagnetic clutch 23, and the electromagnetic clutch 23 is connected to the door leaf 3 through a spline shaft hinge seat 24. Further, the reducer 22 is fixed by a reducer mounting seat 25, and a reinforcing plate 253 is provided on the side of the reducer mounting seat 25 facing the mounting surface.

[0027] Specifically, see Figure 4 and Figure 5 The output end of the motor 21 is connected to the reducer 22 through the coupling 211, the reducer 22 is connected to the electromagnetic clutch 23 through the involute spline shaft 221, the reducer 22 is fixedly connected to the reducer mounting seat 25 through the hexagonal bolt, the reducer mounting seat 25 is connected to the anchor plate 252 through the stud 251, and is installed to the existing building (the existing building refers to the concrete structure of the entrance and exit of the subway station) by anchoring. The reinforcing plate 253 is arranged horizontally and vertically on the back of the reducer mounting seat 25, so as to improve the local structural strength of the reducer mounting seat 25. At the same time, the present invention realizes the improvement of manual and electric conversion efficiency through the electromagnetic clutch 23, the electromagnetic clutch 23 outputs the rotation torque through the spline shaft 231, and the spline shaft 231 is connected to the spline shaft articulated seat 24 through the circumferentially distributed first hexagon socket head screw 232 and the pin 233, and the circumferentially distributed pin 233 can also enhance the shear bearing capacity. The spline shaft hinge seat 24 is fixedly connected to the door leaf 3 by a hexagonal bolt, and the door leaf 3 is relatively rotatably connected through the spline shaft hinge seat 24 and the spline shaft 231. Considering that a large torque is required to open the anti-flooding protective closed door, for the convenience of installation, the electromagnetic clutch 23 adopts a spline connection method, and the output adapter shaft of the reducer 22 adopts a locking disk hollow shaft mode. In this way, one end of the electric closed split hinge structure 2 is a locking disk connected to the output shaft of the reducer 22, and the other end is an involute spline shaft 221 connected to the electromagnetic clutch 23. In the absence of electricity, the electromagnetic clutch 23 can be automatically disconnected inside to cut off the connection with the reducer 22.

[0028] In some implementations, further, according to the drive requirements and in order to reduce the size of the reducer 22, the motor 21 can select a high inertia medium capacity servo motor that meets the drive torque. According to the space layout and axial size restriction requirements, the reducer 22 can select a 90° reversing K series spiral bevel gear reducer. Considering the high cost of servo motors, the reduction transmission scheme can use an R series reducer in series with a 90° reversing K series spiral bevel gear reducer. In this way, a low-power, low-torque, AC variable frequency motor plus a frequency converter can be used for speed regulation.

[0029] In the above embodiment, further, the electric closed split hinge structure 2 includes a composite hinge mechanism 27, the composite hinge mechanism 27 includes a base 276 and a load-bearing arm 26, the base 276 is connected to the existing building, and the load-bearing arm 26 is fixedly connected to the door leaf 3; wherein, the load-bearing arm 26 is connected to a load-bearing shaft 28, and the load-bearing shaft 28 is connected to a translation support 273 through a thrust roller self-aligning bearing 277, and the load-bearing shaft 28 drives the translation support 273 to move under the action of the driving mechanism to realize the rotation of the door leaf 3; the base 276 is connected to a load-bearing support 271, and the load-bearing support 271 is connected to a guide support 272, and a linear motion needle roller bearing 278 is arranged in the guide support 272, and the linear motion needle roller bearing 278 and the translation support 273 roll and rub under the action of the driving mechanism to realize the translation of the door leaf 3.

[0030] Specifically, see Figure 6 The composite hinge mechanism 27 at the lower part of the door leaf 3 includes a bearing support 271, a guide support 272, a translation support 273, a hinge seat 274, a hinge shaft 275 and a base 276. The load-bearing arm 26 is fixedly connected to the door leaf 3 by a hexagonal bolt, and is connected to the bearing shaft 28 by a hexagonal cylindrical screw. The bearing shaft 28 and the translation support 273 are connected by a thrust roller self-aligning bearing 277, so as to realize the rotation of the door leaf 3. The guide support 272 is connected to the bearing support 271 by a hexagonal cylindrical screw, and linear motion needle bearings 278 are installed on both sides of the guide support 272. In this way, translation can be realized through the rolling friction between the translation support 273 and the linear motion needle bearing 278. The bearing support 271 is connected to the base 276 by a hexagonal bolt, and the base 276 is connected to the anchor plate 252 by a stud 251, and is installed to the existing building (the existing building refers to the concrete structure of the entrance and exit of the subway station) by anchoring. In some implementations, a reinforcement plate 253 may also be arranged laterally and longitudinally on the back of the base 276 , so as to improve the local structural strength of the base 276 and ensure the reliability of the installation of the composite hinge mechanism 27 .

[0031] In the above embodiment, further, the composite hinge mechanism 27 also includes a door hinge seat 29, which is fixedly connected to the door leaf 3, and the door hinge seat 29 is connected to the hinge plate 30 through a needle bearing, and the hinge plate 30 is connected to the hinge seat 274 through a hinge shaft 275 and a rolling bearing 279, and the hinge seat 274 is fixedly connected to the base 276.

[0032] Specifically, the door hinge seat 29 is fixedly connected to the door leaf 3 by a hexagonal bolt, the door hinge seat 29 and the hinge plate 30 achieve rolling cooperation through a needle bearing, and the hinge plate 30 and the hinge seat 274 achieve rolling cooperation through a hinge shaft 275 and a rolling bearing 279, and the hinge seat 274 is fixedly connected to the base 276 by a hexagonal bolt.

[0033] In the above embodiment, further, a stopper 280 is provided on the hinge seat 274. Considering that the reducer mounting seat 25 and the base 276 need to be installed in advance in the concrete structure of the entrance and exit of the subway station by anchoring, stoppers 280 are installed on both sides of the hinge seat 274, and the position of the hinge seat 274 can be fine-tuned by rotating the second hexagon socket head screws 281 on the left and right stoppers 280, thereby ensuring the installation coaxiality requirements of the bearing seat hinge ear on the reducer mounting seat 25, the bearing support 271 and the hinge seat 274.

[0034] As an optional embodiment, in some embodiments, the sealing structure includes a door leaf angle steel 32, a first sealing strip and a second sealing strip, the door leaf angle steel 32 includes a main beam and a secondary beam, the main beam is vertically arranged, the secondary beam is arranged between two adjacent main beams, a plurality of reinforcing ribs 46 are arranged on the support plate 44, the door leaf angle steel 32 is connected to a steel plate 43 and a first pressure plate 42, a first sealing strip 41 is arranged on the steel plate 43, the first sealing strip 41 is fixed by the first pressure plate 42, the door leaf angle steel 32 is also connected to a support plate 44 and a second pressure plate 47, and a second sealing strip 45 is arranged between the support plate 44 and the second pressure plate 47; wherein, when the electric closed split hinge structure 2 drives the door leaf 3 to close, the door leaf angle steel 32 is subjected to force to squeeze the first sealing strip 41 on the steel plate 43, and the second sealing strip 45 is squeezed by the support plate 44 and the second pressure plate 47 at the same time, so that the door leaves 3 and the door leaves 3 and the door frame 1 fit together, thereby realizing the sealing of the middle seam of the door leaf 3. Furthermore, the sealing structure also includes a surrounding sealing structure, which includes a door leaf angle steel 32, a second sealing strip 45 and a third sealing strip 417. The second sealing strip 45 is fixed between the door leaf angle steel 32 and the door frame 1 by a second pressure plate 47, and the third sealing strip 417 is arranged close to the second sealing strip 45 and connected to the edge of the door leaf 3; wherein, when the electric closed split hinge structure 2 drives the door leaf 3 to close, the door leaf angle steel 32 is subjected to force so that the second sealing strip 45 is squeezed by the second pressure plate 47, and the third sealing strip 417 is squeezed by the door leaf 3 and the door frame 1, so that the door leaf 3 fits with the door frame 1 on all sides, thereby achieving sealing on all sides of the door leaf 3.

[0035] Specifically, the first sealing strip 41 of the present invention adopts an overlapping rubber strip, which has certain flexibility and durability, and can well buffer and absorb some impact forces. The second sealing strip 45 adopts a P-type natural rubber strip, which has excellent elasticity, softness and wear resistance. The third sealing strip adopts silicone, which has good sealing performance and elasticity, is not easy to age and deform, and has excellent waterproof performance and is not easy to deform when exposed to water; the first pressure plate 42 adopts a rubber strip pressure plate, and the second pressure plate 47 adopts a P-type rubber strip pressure plate.

[0036] In the middle seam sealing structure of the door leaf 3, the overlapping rubber strip is fixed to the door leaf angle steel 32 by bolts, the rubber strip pressure plate is connected to the overlapping rubber strip by bolts, the overlapping rubber strip is fixed to the steel plate 43 by bolts, and the steel plate 43 is welded to the door leaf angle steel 32, so as to support and strengthen the overlapping rubber strip; and the two overlapping rubber strips are fixed by the triangular rubber strip pressure plate to seal, so as to ensure that water cannot enter the middle cavity where the P-type natural rubber strip is located (see Figure 7). At the same time, an extruded P-type natural rubber strip is used for sealing. The P-type natural rubber strip is placed between the support plate 44 and the P-type strip pressure plate. The support plate 44 and the P-type strip pressure plate are fixed to the door leaf angle steel 32 by welding. A plurality of reinforcing ribs 46 are welded to the strip support plate 44 to improve the rigidity of the support plate 44.

[0037] In the sealing structure around the door leaf 3, the P-type natural rubber strip is fixed to the door frame 1 by bolts and the P-type strip pressure plate, and the edge of the door leaf 3 is sealed with silicone (see Figure 8 ), which can reduce the moisture from penetrating into the interior of the door leaf 3 through the gaps at the edge of the door leaf 3, thereby protecting the material of the door leaf 3 from moisture and corrosion.

[0038] Therefore, the center seam of the door leaf 3 of the present invention is sealed by the first sealing strip 41 and the second sealing strip 45, while the four sides of the door leaf 3 are sealed by the second sealing strip 45 and the third sealing strip 417. In this way, both the center seam and the four sides of the door leaf 3 are sealed with two sealing measures, thereby realizing two-way flood prevention inside and outside the door leaf 3 and greatly improving the watertight performance.

[0039] In certain implementations, further, the door leaf 3 of the present invention adopts a beam-slab structure, that is, after the overall thickness of the door leaf is designed through simulation, a suitable door beam and door panel 31 are selected, and the door leaf angle steel 32 constitutes the main structure of the door leaf 3, which is the core structure to ensure the impact resistance of the door beam. The door panel 31 is arranged on the outside of the door beam, which can ensure both the air tightness of the door leaf 3 and the impact resistance of the door leaf 3. In this embodiment, the door hole size is 6500mm×3000mm, the design water head is 20m in the positive direction, and the door leaf 3 is designed to be two and double-opening. For one door leaf 3, the thickness of the door panel 31 is 8mm, and the door leaf angle steel 32 uses 20a I-beam steel. The door leaf angle steel 32 includes a main beam (vertical beam) and a secondary beam (horizontal beam). The main beam is arranged vertically, and the secondary beam is arranged between two adjacent main beams. The steel is arranged as follows: Fig.12 Thus, further theoretical and simulation calculations confirm that the door leaf 3 stiffness and strength meet the design requirements.

[0040] As an optional embodiment, in some embodiments, a lifting and locking sealing structure 4 is also included, and the lifting and locking sealing structure 4 includes a lifting drive mechanism, and the lifting drive mechanism includes a lifting beam 411, and the lifting beam 411 is connected to a sealing beam 412, and an inclined support rod 413 is also connected between the lifting beam 411 and the sealing beam 412; wherein, the lifting beam 411 is arranged horizontally, and the sealing beam 412 is arranged parallel to the lifting beam 411 and is located on the side close to the door leaf 3, and a third sealing strip 417 is arranged on the bottom of the sealing beam 412 and on the side facing the door leaf 3. When the door leaf 3 is closed, the sealing beam 412 descends with the lifting beam 411 and squeezes the second sealing strip 45, so that the gap between the lower edge of the door leaf 3 and the ground is sealed, and when the door leaf 3 is in a sealed state, the inclined support rod 413 provides a supporting force for the sealing beam 412 toward the bottom and the direction of the door leaf 3. Furthermore, the lifting locking sealing structure 4 includes a locking mechanism, which includes a locking column 414, a locking seat 415 and a locking sleeve 416. The locking column 414 is connected to the lifting beam 411, the locking seat 415 is arranged below the door frame 1, and the locking sleeve 416 is arranged on the door leaf 3 for the locking column 414 to pass through.

[0041] Specifically, see Figure 2 and Fig. 9 When closing the door leaf 3, the door leaf 3 rotates to fit with the door frame 1, and the lifting beam 411 descends until it contacts the bottom of the sealing beam 412 and the side close to the door leaf 3, and stops; the locking assembly includes a locking column 414 connected to the lifting beam 411, a locking seat 415 arranged under the door frame 1, and a locking sleeve 416 fixed on the door leaf 3 for the locking column 414 to pass through. When the lifting beam 411 descends, the locking column 414 follows the lifting beam 411 to descend until the bottom of the locking column 414 passes through the bottom of the locking sleeve 416 and extends into the locking seat 415, thereby locking the door leaf 3. In addition, through the provision of the oblique support rod 413, after the sealing beam 412 is in place, the sealing beam 412 is supported by the oblique support rod 413, so that the sealing beam 412 is subjected to downward force and force toward the door leaf 3, and both forces can improve the effect of reinforcing the seal. At the same time, refer to Fig.10 Since there are two P-type natural rubber strips in the sealing beam 412, during the descending process of the sealing beam 412, one P-type natural rubber strip is sealed with the ground, and the other P-type natural rubber strip is squeezed along the force direction The lower edge of the door leaf 3 is sealed, further improving the sealing effect of the closed door.

[0042] In some implementations, further, the connection fasteners of the present invention are also waterproofed, such as bolts, screws, etc. Fig.11After the bolts are fixed, the waterproof cap is covered, and the gaps between the bolt holes and the fixed objects are filled with waterproof materials. The waterproof material is EPDM (full name Ethylene Propylene Diene Monomer, Chinese name ethylene propylene diene monomer, a terpolymer of ethylene, propylene and non-conjugated diene), which has excellent chemical resistance and excellent weather resistance as a waterproof material.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0044] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made based on the essence of the content of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligently controlled flood-proof and sealed door for entrances and exits of subway stations, characterized in that: include: The door body comprises a door frame and a door leaf, wherein the bottom of the door frame is open and the door leaf is arranged in the door frame; The door frame is provided with an electric sealed split hinge structure, and the electric sealed split hinge structure is used to control the opening or closing of the door leaf; The door leaf is provided with a sealing structure, and the sealing structure is used to seal the door body; The electric closed split hinge structure includes a driving mechanism, the driving mechanism includes a motor, the motor is connected to a reducer, the reducer is connected to an electromagnetic clutch, and the electromagnetic clutch is connected to the door leaf through a spline shaft hinge seat; The electric closed split hinge structure includes a composite hinge mechanism, which includes a base and a load-bearing arm, wherein the base is connected to the existing building, and the load-bearing arm is fixedly connected to the door leaf; Among them, the load-bearing arm is connected to a load-bearing shaft, and the load-bearing shaft is connected to a translation support through a thrust roller self-aligning bearing, and the load-bearing shaft drives the translation support to move under the action of a driving mechanism to realize the rotation of the door leaf; the base is connected to a load-bearing support, and the load-bearing support is connected to a guide support, and a linear motion needle bearing is arranged in the guide support, and the linear motion needle bearing and the translation support have rolling friction under the action of a driving mechanism to realize the translation of the door leaf.

2. The subway station entrance and exit intelligent control flood prevention and protection closed door according to claim 1 is characterized in that: The composite hinge mechanism also includes a door hinge seat, which is fixedly connected to the door leaf, the door hinge seat is connected to a hinge plate via a needle bearing, the hinge plate is connected to the hinge seat via a hinge shaft and a rolling bearing, and the hinge seat is fixedly connected to the base.

3. The subway station entrance and exit intelligent control flood prevention and protection closed door according to claim 2 is characterized in that: A stopper is arranged on the hinge seat.

4. The subway station entrance and exit intelligent control flood prevention and protection closed door according to claim 1 is characterized in that: The reducer is fixed by a reducer mounting seat, and a reinforcement plate is arranged on one side of the reducer mounting seat facing the mounting surface.

5. The subway station entrance and exit intelligent control flood prevention and protection closed door according to claim 1 is characterized in that: The sealing structure comprises a center seam sealing structure, and the center seam sealing structure comprises a door leaf angle steel, a first sealing strip and a second sealing strip; The door leaf angle steel is composed of a main beam and a secondary beam, the main beam is arranged vertically, and the secondary beam is arranged between two adjacent main beams; The door leaf angle steel is connected with a steel plate and a first pressing plate, the steel plate is provided with the first sealing strip, and the first sealing strip is fixed by the first pressing plate; The door leaf angle steel is also connected to a support plate and a second pressure plate, the second sealing strip is arranged between the support plate and the second pressure plate, and a plurality of reinforcing ribs are arranged on the support plate; Among them, when the electric closed split hinge structure drives the door leaf to close, the door leaf angle steel is subjected to force so that the first sealing strip on the steel plate is squeezed, and the second sealing strip is squeezed by the support plate and the second pressure plate at the same time, so that the door leaves and the door leaves and the door frame fit together, thereby achieving sealing of the center seam of the door leaf.

6. The subway station entrance and exit intelligent control flood prevention and protection closed door according to claim 5 is characterized in that: The sealing structure also includes a surrounding sealing structure, which includes a door leaf angle steel, a second sealing strip and a third sealing strip; The second sealing strip is fixed between the door leaf angle steel and the door frame via a second pressing plate, and the third sealing strip is arranged close to the second sealing strip and connected to the edge of the door leaf; Among them, when the electric closed split hinge structure drives the door leaf to close, the door leaf angle steel is subjected to force so that the second sealing strip is squeezed by the second pressure plate, and the third sealing strip is squeezed by the door leaf and the door frame, so that the door leaf fits around the door frame and the door leaf is sealed on all sides.

7. The subway station entrance and exit intelligent control flood prevention and protection closed door according to claim 1 is characterized in that: It also includes a lifting and locking sealing structure, the lifting and locking sealing structure includes a lifting and driving mechanism, the lifting and driving mechanism includes a lifting beam, the lifting beam is connected to a sealing beam, and an inclined support rod is also connected between the lifting beam and the sealing beam; Wherein, the lifting beam is arranged transversely, the sealing beam is arranged parallel to the lifting beam and is located on a side close to the door leaf, and a second sealing strip is arranged on the bottom of the sealing beam and on a side facing the door leaf; When the door leaf is closed, the sealing beam descends along with the lifting beam and presses the second sealing strip, so that the gap between the lower edge of the door leaf and the ground is sealed; When the door leaf is in a sealed state, the oblique support rod provides the sealing beam with a supporting force in a direction toward the bottom and the door leaf.

8. The subway station entrance and exit intelligent control flood prevention protection closed door according to claim 7, characterized in that: The lifting locking sealing structure includes a locking mechanism, which includes a locking column, a locking seat and a locking sleeve. The locking column is connected to the lifting beam, the locking seat is arranged below the door frame, and the locking sleeve is arranged on the door leaf for the locking column to pass through.

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