CN115434751A - Open section flood gate for subway tunnel and control method thereof - Google Patents

Abstract

The invention discloses a flood gate for an open section of a subway tunnel and a control method, wherein the flood gate comprises a side-hung gate body, a gate body base and an adjusting base; the adjusting base is positioned below the side-hung door body and is used for being arranged on the ground of a U-shaped groove of a subway entrance and exit field line; a door body side sealing piece is arranged between the side-hung door body and the door body base, a door body bottom sealing piece is arranged between the side-hung door body and the adjusting base, a channel for a rail to pass through is formed in the lower portion of the side-hung door body, and a rail position sealing piece is arranged at the position of the channel; the track position seal comprises a power part, a connecting rod transmission mechanism and two seal parts, the power part is connected with the connecting rod transmission mechanism, the connecting rod transmission mechanism is connected with the two seal parts, the power part can drive the connecting rod transmission mechanism to move, and then the two seal parts are driven to clamp and seal the track. The waterproof sealing performance of the flood gate is ensured, so that flood is effectively prevented from entering the subway entrance/exit (section) line through the flood gate.

Description

An anti-flooding door and its control method for the open section of a subway tunnel

technical field

The invention relates to the technical field of urban rail transit engineering, in particular to an anti-flooding door for an open section of a subway tunnel and a control method thereof.

Background technique

The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

The subway is usually located below the ground, which is a relatively airtight space with the characteristics of concealment, blockage, high density of personnel and equipment, etc., making evacuation and rescue difficult. The way for the subway to communicate with the outside world is mainly through air shafts, entrances and exits, and line holes. Therefore, when a flood disaster occurs in the city, the flood will first enter the subway and quickly spread to the entire connected area of the subway.

In order to prevent rainwater backflow, the subway entry and exit (section) line, that is, the transition part from the underground to the ground, generally adopts the form of the tunnel entrance connecting the U-shaped groove. From the tunnel entrance to the railway track completely exposed to the ground, the track bed and the railway track It is laid on a U-shaped trough, and the two sides of the U-shaped trough are reinforced concrete anti-flooding walls. No matter how the slope of the line changes, the anti-flooding wall is always more than 1 meter above the outside ground.

At present, the method of installing anti-flooding doors at the U-shaped mouth is mostly used to further prevent the flood from pouring into the subway entry and exit (section) line. The waterproof effect of the flooded door is limited, and the flood can still enter the subway entry and exit (section) line through the gap between the flooded door and the track.

Contents of the invention

In order to solve the above problems, the present invention proposes an anti-flooding door for the open section of the subway tunnel and its control method. On the basis of setting the flat-opening door body and the door body base, an adjustment base and a door body bottom seal are also provided. , door seam seals, door side seals and track position seals ensure the waterproof sealing of the flood-proof door, thereby effectively preventing floods from entering the subway entry and exit (section) line through the flood-proof door.

To achieve the above object, the present invention adopts the following technical solutions:

In the first aspect, an anti-flooding door for the open section of a subway tunnel is proposed, which includes a flat-opening door body, a door body base, and an adjustment base; the flat-opening door body is installed on the door body base, and can The base is rotated, and the base is adjusted to be located under the side-opening door body, which is used for installation on the ground of the U-shaped groove of the subway entrance and exit line; the side seal of the door body is installed between the side-opening type door body and the door body base, A seal at the bottom of the door body is set between the swing-opening door body and the adjustment base, and a channel for the track to pass is opened at the lower part of the swing-opening door body, and a track position seal is set at the position of the channel; wherein, the track position seal includes power components, The connecting rod transmission mechanism and two sealing parts, the power part is connected with the connecting rod transmission mechanism, the connecting rod transmission mechanism is connected with the two sealing parts, the power part can drive the movement of the connecting rod transmission mechanism, and then drive the two sealing parts to clamp the track Seal tightly.

Further, the side-opening door body includes a door body A and a door body B, and the door body A and the door body B are installed on the door body base and can rotate around the door body base, and the distance between the door body A and the door body B Set door seals between.

Further, the door body A and the door body B are equipped with a bolt locking mechanism, the bolt locking mechanism includes a bolt and an insertion part, the bolt is located on one of the door bodies, and the insertion part is located on the other door body, and the bolt can be inserted The plug-in part locks the door body A and the door body B.

Further, the swing-type door body includes a door frame and a door panel, the door frame is connected to the door body base, and can rotate around the door body base, and the door panel is connected to the door frame through a door body lifting mechanism.

Further, a magnetic switch is installed on the flat-opening door body, and a door stopper matched with the magnetic switch is provided on the side wall of the U-shaped groove.

Further, the lower part of the flat-opening door body is provided with a plurality of passages through which the rails pass, and each passage only allows one rail to pass through.

Further, the power component includes a connecting rod driving motor, a power rod and a driving connector, the output shaft of the driving motor is connected to the power rod, the power rod is hinged to the driving connector, and the connecting rod transmission mechanism includes a first connecting rod, a second connecting rod Rod and intermediate connecting rod, the first end of the first connecting rod and the first end of the second connecting rod are respectively hinged with the driving connector, the second end of the first connecting rod and the second end of the second connecting rod are respectively connected to the sealing Parts, the two ends of the middle connecting rod are respectively hinged with the first connecting rod and the second connecting rod.

Further, the two sealing parts are respectively located on both sides of the track, and the sealing parts include a fixed block, a guide rail, a chute and a sealing head, a track groove suitable for the track is arranged on the sealing head, a sealing gasket is arranged in the track groove, and the sealing head Fixedly connected with the fixed block, the fixed block is hinged with the first connecting rod or the second connecting rod, the fixed block is connected with the guide rail, the guide rail is slidably connected with the chute, and can move along the chute, and the chute is fixed on the flat-opening door body .

Further, it also includes water level detectors, station monitoring equipment, on-site monitoring equipment and central monitoring equipment;

The water level detector is used to obtain the water level information at the entrance and exit of the U-shaped tank;

On-site monitoring equipment is used to control the opening and closing of the swing door body and the opening and closing of the track position seal according to the water level information at the entrance and exit of the U-shaped groove;

The station monitoring equipment is used to receive and display the water level information at the entrance and exit of the U-shaped trough, the status information of the swing door body and the status information of the track position seal, and upload it to the central monitoring equipment;

The central monitoring equipment is used to centrally display the water level information at the entrance and exit of all U-shaped grooves, the status information of the swing door body and the status information of the track position seal.

In the second aspect, a flood prevention control method for the open section of a subway tunnel is proposed, including:

When it is necessary to carry out anti-flooding treatment on the open section of the subway tunnel, the flat-opening door body is closed, and the power part drives the movement of the connecting rod transmission mechanism, and then drives the two sealing parts to clamp and seal the track.

Compared with prior art, the beneficial effect of the present invention is:

1. On the basis of setting the flat-opening door body and the door body base, the present invention also sets the adjustment base, the door body bottom seal, the door seam seal, the door body side seal and the track position seal, ensuring The waterproof sealing of the anti-flood door can effectively prevent the flood from entering the subway entry and exit (section) line through the anti-flood door.

2. The present invention is also equipped with a water level detector for obtaining the water level information at the entrance and exit of the U-shaped groove. The on-site monitoring equipment can seal the position of the side-opening door body and the track according to the water level information at the entrance and exit of the U-shaped groove obtained by the water level detector. Control, so that the flood can be blocked in time and effectively outside the flood prevention door.

3. The side-opening door body provided by the present invention, on the basis of being able to open and close sideways, is also provided with a vertically lifting door panel. During the opening and closing process of the side-opening door body, the door panel rises to the highest position to prevent contact with The collision between the track and the third rail and other facilities ensures the normal operation of the opening and closing of the swing door.

4. In order to improve the strength of the swing-type door body, the present invention sets the swing-type door body into a structure including A and door body B, and sets a door gap seal and a latch locking mechanism between A and door body B , Seal between A and door body B through the door seam seal, and lock A and door body B through the latch locking mechanism to further ensure the airtightness between A and door body B.

5. The present invention sets the position seal of the track, drives the movement of the connecting rod transmission mechanism through the power part, and controls the action of the two sealing parts by the connecting rod transmission mechanism to clamp and seal the track. Since the two sealing parts are controlled by the connecting rod transmission mechanism at the same time Action, thus ensuring the synchronization of the sealing control on both sides of the track, ensuring the effect of the track sealing and improving the control efficiency.

Advantages of additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application, and do not constitute improper limitations to the present application.

Fig. 1 is the overall structural schematic diagram of embodiment 1 disclosed anti-flooding door;

Fig. 2 is a schematic diagram of the door structure of the anti-flood door disclosed in embodiment 1;

Fig. 3 is a schematic diagram of the initial position locking mechanism of the anti-flood door disclosed in embodiment 1;

Fig. 4 is a schematic diagram of the track position sealing structure of the anti-flooding door disclosed in embodiment 1;

Fig. 5 is a schematic diagram of the latch locking mechanism of the flood prevention door disclosed in Embodiment 1;

Fig. 6 is a schematic diagram of the door gap seal and the bottom seal of the door body disclosed in Embodiment 1;

Fig. 7 is the schematic diagram of the sealing gasket of the anti-flooding door disclosed in embodiment 1;

Fig. 8 is a schematic diagram of the door body side seal of the anti-flooding door disclosed in Embodiment 1.

Among them: 1. Door body base, 2. Adjustment base, 3. Swing type door body, 4. Track, 5. Field line entrance and exit foundation, 6. Door body A, 7. Door body B, 8. Door body Lifting mechanism, 9, initial position locking mechanism, 10, connecting rod driving motor, 11, power rod, 12, driving connector, 13, first connecting rod, 14, fixed block, 15, intermediate connecting rod, 16, the first connecting rod Two connecting rods, 17, guide rail, 18, chute, 19, latch, 20, inserting part, 21, door seam seal, 22, door body bottom seal, 23, door body side seal, 24, seal Gasket, 25, sealing head.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom" etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only a relative term determined for the convenience of describing the structural relationship of the various components or elements of the present invention, and does not specifically refer to any component or element in the present invention, and cannot be understood as a reference to the present invention. Invention Limitations.

In the present invention, terms such as "fixed", "connected" and "connected" should be understood in a broad sense, which means that they can be fixedly connected, integrally connected or detachably connected; they can be directly connected or can be connected through the middle The medium is indirectly connected. For relevant researchers or technical personnel in the field, the specific meanings of the above terms in the present invention can be determined according to specific situations, and should not be construed as limitations on the present invention.

Example 1

In this embodiment, a flood prevention door for an open section of a subway tunnel is disclosed, as shown in FIGS.

Among them, the door body base 1 and the entry and exit lines are reserved for embedded iron installation or fixed installation with chemical anchor bolts.

The side-opening door body 3 is installed on the door body base 1 and can rotate around the door body base 1 to realize the side-opening and closing of the door body 3 .

An adjustment base 2 is arranged below the swing-type door body 3 , and after the swing-type door body 3 is closed, the lower end surface is located on the top of the adjustment base 2 .

The adjustment base 2 is installed on the ground of the U-shaped groove of the subway entrance and exit line, and is provided with a connecting interface with the position of the track 4, which does not affect the operation of the track 4 and the vehicle. The function of the adjustment base 2 is mainly to form a connection with the flat-opening door body 3 to ensure seamless contact with the adjustment base 2 when the flat-opening door body 3 is closed, so as to ensure the leakage of water retaining.

The swing door body 3 includes a door frame and a door panel. The door frame is connected to the door body base 1 and can rotate around the door body base 1. The door panel is connected to the door frame through the door body lifting mechanism 8, and the door body lifting mechanism 8 drives the door panel along the The door frame moves up and down.

The lower part of the flat-opening door body 3 offers a plurality of passages for the passage of the rails 4, each passage is provided in one-to-one correspondence with each of the rails 4, and each passage is only for one passage to pass through.

Among them, the door frame and the door body base 1 are connected by a door shaft mechanism, and the door shaft mechanism is controlled by a private motor to realize the opening and closing of the flat-opening door body 3. Usually, the flat-opening door body 3 is in an open state, and the flat-opening type door body 3 is in an open state. The door body 3 is parallel to the walls on both sides of the U-shaped groove.

An initial position locking mechanism 9 is provided between the side-opening door body 3 and the walls on both sides of the U-shaped groove. The initial position locking mechanism 9 includes a magnetic switch and a door stopper. The magnetic switch is installed on the side-opening door body 3 , the door stops are installed on the walls on both sides of the U-shaped groove. When the swing door 3 is opened, the swing is realized through the magnetic switch on the swing door 3 and the door stopper pre-installed on the wall. Type door body 3 open state protection.

The door body lifting mechanism 8 includes a slide rail and a slider. The slider is slidably connected to the slide rail, the slide rail is connected to the door frame, and the slider is connected to the door body. The adjustment of the upper and lower relative positions of the body and the door frame.

When needing to close the side-hung type door body 3, the magnetic suction switch is opened, and is closed after being rotated 90 degrees under the drive of the door shaft mechanism servo motor.

The door body lifting mechanism 8 includes a slide rail and a slider. The slider is slidably connected to the slide rail, the slide rail is connected to the door frame, and the slider is connected to the door body. The adjustment of the upper and lower relative positions of the body and the door frame.

When the swing door 3 is in the open state, the door is at the highest position. When the swing door 3 is closed, it can effectively prevent the swing door 3 from colliding with the track, the third rail and other facilities. .

When the swing door 3 needs to be closed, the magnetic switch is turned on, and it is in a closed state after being rotated 90 degrees under the drive of the door shaft mechanism servo motor. When the swing door 3 is closed in place, the door lifting mechanism 8 Drive the door panel down until it falls to fit the adjustment base 2. At this time, the passage for the track 4 to pass is also fitted to the track 4, so as to realize the purpose of closing the entire U-shaped cross-section. Through the setting of the door body lifting mechanism 8, on the basis of preventing the flat-opening door body 3 from colliding with the track, the third rail and other facilities, the position of the door panel can also be adjusted through the door body lifting mechanism 8 to ensure that the door panel and the adjustment base Fitting and sealing between the seat 2 and the door panel and the track 4.

In order to improve the overall strength of the swing-type door body 3, the swing-type door body 3 is configured as a structure including a door body A6 and a door body B7, and the door body A6 and the door body B7 can be opened and closed in a swing-type manner. Both the door body A6 and the door body A7 are installed on the door body base 1 and can rotate around the door body base 1. The door body A6 and the door body A7 have the same structure, and both include the main door frame and the main door panel. The main door frame passes through the door shaft mechanism. Connected with the door body base 1, the main door panel is connected with the main door frame through the door body lifting mechanism 8, and moves up and down along the main door frame under the drive of the door body lifting mechanism 8.

In order to ensure good waterproof performance after the swing door 3 is closed, a door body side seal 23 is installed between the swing door 3 and the door base 1, The door body bottom seal 22 is set between the adjustment bases 2, the door seam seal 21 is set between the door body A6 and the door body A7, the track position seal is set at the channel for the track 4 to pass through, and the door body A6 A latch locking mechanism is set between the door A7 and the latch locking mechanism includes a latch 19 and an insertion part 20, the latch 19 is located on one of the doors, the insertion part 20 is located on the other door, and the latch 19 can be inserted The insertion part 20 locks the A door body and the B door body.

The latch locking mechanism adopts a motor-driven latch design, and the motion of the latch 19 is driven by the motor.

The track position seal includes a power component, a connecting rod transmission mechanism and two sealing components. The power component includes a connecting rod drive motor 10, a reciprocating mechanism 10 and a drive connector 12. The output shaft of the driving motor 10 is connected with the reciprocating mechanism 10 to drive The reciprocating mechanism 10 performs reciprocating motion, and the reciprocating mechanism 10 is hinged with the driving connector 12. The link transmission mechanism includes a first connecting rod 13, a second connecting rod 16 and an intermediate connecting rod 15, and the first end of the first connecting rod 13 1. The first end of the second connecting rod 16 is respectively hinged with the driving connector 12, the second end of the first connecting rod 13 and the second end of the second connecting rod 16 are respectively connected to the sealing member, and the two ends of the intermediate connecting rod 15 are respectively It is hinged with the first connecting rod 13 and the second connecting rod 16 .

The two sealing parts are respectively located on both sides of the track. Each sealing part includes a fixed block 14, a guide rail 17, a chute 18 and a sealing head 25. A track groove suitable for the track is arranged on the sealing head 25, and a gasket is arranged in the track groove. sheet 24, the sealing head 25 is fixedly connected with the fixed block 14, the fixed block 14 is hinged with the first connecting rod 13 or the second connecting rod 16, the guide rail 17 is connected with the fixed block 14, the guide rail 17 is slidably connected with the chute 18, and can move along the The chute 18 moves, and the chute 18 is fixed on the flat door body 3 .

When the driving motor 10 drives the reciprocating mechanism 10 to reciprocate, the reciprocating mechanism 10 drives the connecting piece 12 to move, and then drives the first connecting rod 13 and the second connecting rod 16 to move. The first connecting rod 13 and the second connecting rod 16 The movement drives the fixed block 14 to move, so that the track is clamped and sealed by the two sealing heads 25, or the track is loosened, and the sealing gasket 24 is arranged in the track groove, which further ensures that the two sealing heads 25 clamp and seal the track During the tightness, the guide rail 17 and the slide groove 18 provide guidance for the movement of the fixed block 14.

The reciprocating mechanism 10 includes a screw rod, a nut and a reciprocating motor. The nut is sleeved on the screw rod and is engaged with the screw rod. The nut is connected to the output shaft of the reciprocating motor. When the output shaft of the reciprocating motor rotates, the nut is driven to rotate, thereby driving The screw does reciprocating motion.

When the swing door 3 is closed, the side seal 23 of the door is squeezed and sealed by the swing door 3 and the door base 1, and the door seam seal 21 is squeezed and sealed by the door A6 and the door A7 , the bottom seal 22 of the door body is squeezed and sealed by the flat-opening door body 3 and the adjustment base 2, the flat-opening door body 3 and the track are sealed and sealed by the position of the track, and the latches at the door body A6 and the door body A7 are locked The mechanism is locked to realize the locking of the door body A6 and the door body A7, and increase the strength withstanding hydrostatic pressure.

Wherein, the door body side seal 23, the door seam seal 21, the door body bottom seal 22 and the sealing gasket 24 all adopt rubber sealing strips to ensure airtightness.

The flat-opening door body 3, the adjustment base 2, and the door body base 1 are all made of high-quality carbon steel and treated with anti-rust and anti-corrosion treatment, and the external panels are made of stainless steel.

In order to ensure the timeliness of the closing of the flat-opening door body 3, thereby effectively preventing floods from entering the subway entry and exit (section) line through the anti-flooding door, water level detectors, station monitoring equipment, on-site monitoring equipment and central monitoring equipment are also installed. .

The water level detector is used to obtain the water level information at the entrance and exit of the U-shaped tank.

The on-site monitoring equipment is used to control the opening and closing of the swing door body and the opening and closing of the track position seal according to the water level information at the entrance and exit of the U-shaped groove.

The station monitoring equipment is used to receive and display the water level information at the entrance and exit of the U-shaped trough, the status information of the swing door body and the status information of the track position seal, and upload it to the central monitoring equipment.

The central monitoring equipment is used to centrally display the water level information at the entrance and exit of all U-shaped grooves, the status information of the swing door body and the status information of the track position seal.

In addition, the present embodiment is also provided with control buttons, indicator lights, siren alarm bells and the like. The control buttons, indicator lights, sirens and alarm bells are all connected to the on-site monitoring equipment. The side-opening door body 3 can be opened and closed through the control buttons. Alarm bells, etc. give an early warning.

When the working process of the anti-flooding door of the open section of a subway tunnel disclosed by the present embodiment is;

The normal state is: the swing door is opened, and when the water level at the entrance and exit of the U-shaped groove exceeds the warning line, the on-site monitoring equipment controls the door frame of the swing door to rotate around the door base until the swing door is closed, and the control The latch locking mechanism locks the two doors, controls the door body lifting mechanism to drive the door body down to the flat opening door body and adjusts the base, and the track fits, controls the position of the track to clamp and seal the track, and completes the flat opening The door is closed.

When the water level returns to below the warning line, control the track position seal to release the clamping seal on the track, control the door body lifting mechanism to drive the door body to rise to a set distance, and carry out flood discharge. After that, control and control the door body lifting mechanism to drive the door body to rise To the highest position, control the latch locking mechanism to unlock, control the door frame of the swing door body to rotate around the door body base, so that the swing door body is opened, and the swing door body is locked by the initial position locking mechanism .

The anti-flooding door disclosed in this embodiment is provided with an adjustment base, a door bottom seal, a door seam seal, a door side seal, and a track on the basis of setting a flat-opening door body and a door body base. The position is sealed to ensure the waterproof sealing of the anti-flooding door, thereby effectively preventing the flood from entering the subway entry and exit (section) line through the anti-flooding door; a water level detector is also installed to obtain the water level information at the entrance and exit of the U-shaped groove, The on-site monitoring equipment can control the sealing of the swing door body and the track position according to the water level information at the entrance and exit of the U-shaped groove obtained by the water level detector, so that the flood can be blocked from the anti-flooding door in a timely and effective manner; The door body, on the basis of being able to open and close horizontally, is also equipped with a vertically lifting door panel. During the opening and closing process of the flat-opening door body, the door panel rises to the highest position to prevent collision with the track, the third rail and other facilities. , to ensure the normal operation of the opening and closing of the swing door body; in order to improve the strength of the swing door body, the swing door body is set as a structure including A and door body B, and a The door seam seal and the bolt locking mechanism seal the gap between A and door B through the door seam seal, and lock A and door B through the bolt locking mechanism to further ensure the tightness between A and door B. Sealing: track position sealing is also set, the movement of the connecting rod transmission mechanism is driven by the power part, and the action of the two sealing parts is controlled by the connecting rod transmission mechanism to clamp and seal the track. Since the two sealing parts are controlled by the connecting rod transmission mechanism at the same time Action, thus ensuring the synchronization of the sealing control on both sides of the track, ensuring the effect of the track sealing and improving the control efficiency.

Example 2

In this embodiment, a flood prevention control method for an open section of a subway tunnel is disclosed, including:

When it is necessary to carry out anti-flooding treatment on the open section of the subway tunnel, the flat-opening door body is closed, and the power part drives the movement of the connecting rod transmission mechanism, and then drives the two sealing parts to clamp and seal the track.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention shall fall within the protection scope of the claims of the present invention.

Claims (10)

1. A flood-proof door for an open section of a subway tunnel is characterized by comprising a side-hung door body, a door body base and an adjusting base; the adjusting base is positioned below the side-hung door body and is used for being arranged on the ground of a U-shaped groove of a subway entrance and exit field line; a door body side sealing piece is arranged between the side-hung door body and the door body base, a door body bottom sealing piece is arranged between the side-hung door body and the adjusting base, a channel for a rail to pass through is formed in the lower portion of the side-hung door body, and a rail position sealing piece is arranged at the position of the channel; the track position seal comprises a power part, a connecting rod transmission mechanism and two seal parts, the power part is connected with the connecting rod transmission mechanism, the connecting rod transmission mechanism is connected with the two seal parts, and the power part can drive the connecting rod transmission mechanism to move so as to drive the two seal parts to clamp and seal the track.

2. The open section flood gate for the subway tunnel according to claim 1, wherein the vertical hinged door body comprises a door body A and a door body B, the door body A and the door body B are both mounted on the door body base and can rotate around the door body base, and a gate seam sealing member is arranged between the door body A and the door body B.

3. The open section flood gate for the subway tunnel according to claim 2, wherein bolt locking mechanisms are arranged on the door bodies A and B, each bolt locking mechanism comprises a bolt and an inserting part, the bolt is positioned on one door body, the inserting part is positioned on the other door body, and the bolt can be inserted into the inserting part to lock the door bodies A and B.

4. The open section flood gate for subway tunnels as claimed in claim 1, wherein said vertical hinged door body comprises a door frame and a door plate, said door frame is connected with said door base and can rotate around said door base, said door plate is connected with said door frame by means of door lifting mechanism.

5. The open section flood gate for subway tunnels as claimed in claim 1, wherein a magnetic switch is mounted on the side-hung gate body, and a gate stop cooperating with the magnetic switch is arranged on the side wall of the U-shaped groove.

6. The open-section flood gate for the subway tunnel as claimed in claim 1, wherein a plurality of channels for the rail to pass through are provided at the lower part of the vertical hinged door body, and each channel is only used for one rail to pass through.

7. The metro tunnel open section flooding-preventing door according to claim 1, wherein the power component comprises a link driving motor, a power rod and a driving connecting member, an output shaft of the driving motor is connected with the power rod, the power rod is hinged with the driving connecting member, the link transmission mechanism comprises a first link, a second link and an intermediate link, a first end of the first link and a first end of the second link are respectively hinged with the driving connecting member, a second end of the first link and a second end of the second link are respectively connected with the sealing component, and two ends of the intermediate link are respectively hinged with the first link and the second link.

8. The subway tunnel open section flood gate according to claim 7, wherein two sealing parts are respectively located at two sides of the rail, the sealing parts comprise a fixing block, a guide rail, a sliding groove and a sealing head, a rail groove adapted to the rail is formed in the sealing head, a sealing gasket is arranged in the rail groove, the sealing head is fixedly connected with the fixing block, the fixing block is hinged to the first connecting rod or the second connecting rod, the fixing block is connected with the guide rail, the guide rail is slidably connected with the sliding groove and can move along the sliding groove, and the sliding groove is fixed on the vertical hinged door body.

9. The open-section flood gate for the subway tunnel as claimed in claim 1, further comprising a water level detector, a station monitoring device, an on-site monitoring device and a central monitoring device;

the water level detector is used for acquiring water level information of the inlet and the outlet of the U-shaped groove;

the on-site monitoring equipment is used for controlling the opening and closing of the side-hung door body and the opening and closing of the rail position seal according to the water level information at the inlet and the outlet of the U-shaped groove;

the station monitoring equipment is used for receiving and displaying water level information at an inlet and an outlet of the U-shaped groove, state information of the side-hung door body and state information of the rail position seal, and uploading the information to the central monitoring equipment;

and the central monitoring equipment is used for carrying out centralized display on water level information at the inlet and the outlet of all the U-shaped grooves, state information of the side-hung door body and state information of the rail position sealing.

10. A flood control method for an open section of a subway tunnel is characterized by comprising the following steps:

when the open section of the subway tunnel needs to be subjected to flood prevention treatment, the side-hung door body is closed, the power part drives the connecting rod transmission mechanism to move, and then the two sealing parts are driven to clamp and seal the rail.

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