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

Open section flood gate for subway tunnel and control method thereof

Technical Field

The invention relates to the technical field of urban rail transit engineering, in particular to a subway tunnel open section flood gate and a control method thereof.

Background

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

The subway is usually arranged below the ground, is a relatively closed space, has the characteristics of concealment, blockade, high density of personnel and equipment and the like, and is difficult to evacuate and rescue. The way of communicating the subway with the outside is mainly through air shafts, entrances and exits, line openings and the like. Therefore, when flood disasters happen to cities, flood can preferentially enter the interior of the subway and rapidly spread to the whole communication area of the subway.

In order to prevent rainwater from flowing backwards, the subway entrance and exit (section) line, namely the transition part from underground to ground, generally adopts the form that a tunnel portal is connected with a U-shaped groove, a ballast bed and rails are laid on the U-shaped groove from the tunnel portal until the rails are completely exposed out of the ground, two side edges of the U-shaped groove are reinforced concrete flood-proof walls, and the flood-proof walls are always 1 m more higher than the ground outside no matter how the gradient of the line changes.

At present, the method of installing the flood gate at the U-shaped opening is mostly adopted, so that the problem that flood flows back into the subway entrance and exit (section) line is further solved, however, the existing flood gate is not tightly sealed with the track, so that the waterproof effect of the flood gate is limited, and flood can still enter the subway entrance and exit (section) line through the gap between the flood gate and the track.

Disclosure of Invention

The invention aims to solve the problems and provides a flood gate for an open section of a subway tunnel and a control method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

the first aspect provides a flood gate for an open section of a subway tunnel, which comprises a side-hung gate body, a gate body base and an adjusting base; the side-hung door body is arranged on the door body base and can rotate around the door body base, and 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.

Furthermore, the side-hung door body comprises a door body A and a door body B, the door body A and the door body B are both installed on a door body base and can rotate around the door body base, and a door seam sealing piece is arranged between the door body A and the door body B.

Further, set up bolt locking mechanism on door body A and the door body B, bolt locking mechanism includes the bolt and supplies the portion of inserting, and the bolt is located one of them door body, supplies the portion of inserting to be located another door body, and the bolt can insert the portion of inserting that supplies, locks door body A and door body B.

Furthermore, the side-hung door body comprises a door frame and a door plate, the door frame is connected with the door body base and can rotate around the door body base, and the door plate is connected with the door frame through a door body lifting mechanism.

Furthermore, a magnetic suction switch is installed on the side-hung door body, and a door stop matched with the magnetic suction switch is arranged on the side wall of the U-shaped groove.

Furthermore, the lower part of the side-hung door body is provided with a plurality of channels for the rails to pass through, and each channel is only used for one rail to pass through.

Furthermore, the power part comprises a connecting rod driving motor, a power rod and a driving connecting piece, an output shaft of the driving motor is connected with the power rod, the power rod is hinged to the driving connecting piece, the connecting rod transmission mechanism comprises a first connecting rod, a second connecting rod and a middle connecting rod, a first end of the first connecting rod and a first end of the second connecting rod are hinged to the driving connecting piece respectively, a second end of the first connecting rod and a second end of the second connecting rod are connected with the sealing part respectively, and two ends of the middle connecting rod are hinged to the first connecting rod and the second connecting rod respectively.

Furthermore, the two sealing parts are respectively positioned on two sides of the track and comprise a fixing block, a guide rail, a sliding groove and a sealing head, a track groove matched with the track is formed in the sealing head, a sealing gasket is arranged in the track 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 connected with the sliding groove in a sliding mode and can move along the sliding groove, and the sliding groove is fixed on the side-hung door body.

Further, the system also comprises a water level detector, station monitoring equipment, field monitoring equipment and central monitoring equipment;

the water level detector is used for acquiring water level information of an inlet and an 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.

In a second aspect, a subway tunnel open section flood control method is provided, which comprises 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.

Compared with the prior art, the invention has the beneficial effects that:

1. on the basis of arranging the side-hung door body and the door body base, the adjusting base, the door body bottom sealing piece, the door seam sealing piece, the door body side part sealing piece and the rail position sealing piece are arranged, so that the waterproof sealing performance of the flood-proof door is ensured, and flood is effectively prevented from entering a subway entrance/exit (section) line through the flood-proof door.

2. The invention is also provided with a water level detector for acquiring water level information of the inlet and the outlet of the U-shaped groove, and the on-site monitoring equipment can control the position sealing of the vertical hinged door body and the track according to the water level information of the inlet and the outlet of the U-shaped groove acquired by the water level detector, so that flood can be effectively blocked outside the flood-proof door in time.

3. The vertical hinged door body is provided with the door plate which can vertically lift on the basis of being capable of being horizontally hinged and closed, and in the process of opening and closing the vertical hinged door body, the door plate rises to the highest position to prevent the door plate from colliding with facilities such as a track, a third rail and the like, so that the normal operation of opening and closing the vertical hinged door body is ensured.

4. In order to improve the strength of the casement door body, the casement door body is of a structure comprising the door body A and the door body B, a door seam sealing piece and a bolt locking mechanism are arranged between the door body A and the door body B, the door body A and the door body B are sealed through the door seam sealing piece, and the door body A and the door body B are locked through the bolt locking mechanism, so that the sealing property between the door body A and the door body B is further ensured.

5. The track sealing device is provided with track position sealing, the connecting rod transmission mechanism is driven to move by the power component, the connecting rod transmission mechanism controls the two sealing components to act, and the track is clamped and sealed.

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

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application, and the description of the exemplary embodiments and illustrations of the application are intended to explain the application and are not intended to limit the application.

Fig. 1 is a schematic view of the overall structure of the flood gate disclosed in embodiment 1;

fig. 2 is a schematic structural diagram of a door body of the flood gate disclosed in embodiment 1;

FIG. 3 is a schematic view of the locking mechanism for the initial position of the flood gate disclosed in embodiment 1;

FIG. 4 is a schematic view of a track position sealing structure of the flood gate disclosed in embodiment 1;

FIG. 5 is a schematic view of the latch locking mechanism of the flood gate disclosed in embodiment 1;

FIG. 6 is a schematic view of a door seam sealing piece and a door body bottom sealing piece of the flood gate disclosed in embodiment 1;

FIG. 7 is a schematic view of a gasket seal of the flood gate disclosed in example 1;

fig. 8 is a schematic view of a door side seal of the flood gate disclosed in embodiment 1.

Wherein: 1. door body base, 2, adjustment base, 3, the flat-open door body, 4, the track, 5, field line access & exit basis, 6, door body A,7, door body B,8, door body elevating system, 9, initial position locking mechanism, 10, connecting rod driving motor, 11, power rod, 12, drive connecting piece, 13, first connecting rod, 14, the fixed block, 15, middle connecting rod, 16, the second connecting rod, 17, the guide rail, 18, the spout, 19, the bolt, 20, supply the portion of inserting, 21, the crack sealing member, 22, door body bottom sealing member, 23, door body side sealing member, 24, seal gasket, 25, sealing head.

Detailed Description

The invention is further described with reference to the following figures and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. 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 is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.

In the present invention, terms such as "fixedly connected", "connected", and the like should be understood broadly, and mean that they may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.

Example 1

In the embodiment, a subway tunnel open section flood gate is disclosed, as shown in fig. 1 to 8, comprising a side hung door body 3, a door body base 1 and an adjusting base 2.

Wherein, door body base 1 and the installation of reserving the built-in iron with the entrance and exit field line or adopt chemical anchor bolt to carry out fixed mounting.

The side-hung door body 3 is arranged on the door body base 1 and can rotate around the door body base 1, so that the side-hung door and the closing of the door body 3 are realized.

An adjusting base 2 is arranged below the side-hung door body 3, and after the side-hung door body 3 is closed, the lower end face is positioned on the upper portion of the adjusting base 2.

Adjustment base 2 installs in subway discrepancy field line U type groove ground, is equipped with the link up interface with 4 positions on the track, does not influence track 4 and vehicle operation. The adjusting base 2 is mainly used for being connected with the side-hung door body 3, so that seamless contact with the adjusting base 2 is guaranteed when the side-hung door body 3 is closed, and water blocking leakage is guaranteed.

The casement door body 3 comprises a door frame and a door plate, the door frame is connected with the door body base 1 and can rotate around the door body base 1, the door plate is connected with the door frame through the door body lifting mechanism 8, and the door plate is driven to do lifting motion along the door frame through the door body lifting mechanism 8.

The lower part of the side-hung door body 3 is provided with a plurality of channels for the rails 4 to pass through, each channel is arranged in one-to-one correspondence with each rail 4, and each channel is only used for one rail to pass through.

The door frame and the door body base 1 are connected through a door shaft mechanism, the door shaft mechanism is controlled through a private clothes motor, opening and closing of the side hung door body 3 are achieved, the side hung door body 3 is in an open state at ordinary times, and the side hung door body 3 is parallel to the walls of the two side faces of the U-shaped groove.

An initial position locking mechanism 9 is arranged between the vertical hinged door body 3 and the wall on the two side faces of the U-shaped groove, the initial position locking mechanism 9 comprises a magnetic suction switch and a door stop, the magnetic suction switch is installed on the vertical hinged door body 3, the door stop is installed on the wall on the two side faces of the U-shaped groove, and when the vertical hinged door body 3 is opened, the protection of the open state of the vertical hinged door body 3 is realized through the magnetic suction switch on the vertical hinged door body 3 and the door stop preassembled on the wall.

The door body lifting mechanism 8 comprises a sliding rail and a sliding block, the sliding block is connected with the sliding rail in a sliding mode, the sliding rail is connected with the door frame, the sliding block is connected with the door body, the sliding block is driven by a lifting motor to move up and down along the sliding rail, and the up-and-down relative position of the door body and the door frame is adjusted.

When the side hung door body 3 needs to be closed, the magnetic switch is opened, and the door is closed after being driven by the servo motor of the door shaft mechanism to rotate 90 degrees.

The door body lifting mechanism 8 comprises a sliding rail and a sliding block, the sliding block is connected with the sliding rail in a sliding mode, the sliding rail is connected with the door frame, the sliding block is connected with the door body, the sliding block is driven by a lifting motor to move up and down along the sliding rail, and the up-and-down relative position of the door body and the door frame is adjusted.

When the flat-open type door body 3 is in an open state, the door body is at the highest position, and when the flat-open type door body 3 is closed, the flat-open type door body 3 can be effectively prevented from colliding with facilities such as a track and a third rail.

When the side-hung door body 3 needs to be closed, the magnetic switch is opened, the door body is in a closed state after being driven by the servo motor of the door shaft mechanism to rotate for 90 degrees, when the side-hung door body 3 is closed in place, the door body lifting mechanism 8 drives the door plate to descend until the door plate descends to be attached to the adjusting base 2, at the moment, the channel for the rail 4 to penetrate is also attached to the rail 4, and the purpose of closing the cross section of the whole U-shaped opening is achieved. Through the setting of door body elevating system 8, on the basis of preventing facilities such as the flat-open door body 3 and track, third rail from bumping, can also carry out position control to the door plant through door body elevating system 8, guarantee that the laminating between door plant and adjustment base 2 and door plant and track 4 is sealed.

In order to improve the overall strength of the side hung door 3, the side hung door 3 is configured to include a door A6 and a door B7, and the door A6 and the door B7 can be opened and closed in a side hung manner. The door body A6 and the door body A7 are both 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 are identical in structure and respectively comprise a main door frame and a main door plate, the main door frame is connected with the door body base 1 through a door shaft mechanism, the main door plate is connected with the main door frame through a door body lifting mechanism 8, and lifting motion is carried out along the main door frame under the driving of the door body lifting mechanism 8.

In order to ensure that the casement door body 3 is closed, the waterproof structure is good, a door body side sealing piece 23 is installed between the casement door body 3 and the door body base 1, a door body bottom sealing piece 22 is arranged between the lower part of the casement door body 3 and the adjusting base 2, a door seam sealing piece 21 is arranged between the door body A6 and the door body A7, a track position is arranged at a channel for the track 4 to pass through and sealed, a bolt locking mechanism is arranged between the door body A6 and the door body A7, the bolt locking mechanism comprises a bolt 19 and an inserting part 20, the bolt 19 is arranged on one of the door bodies, the inserting part 20 is arranged on the other door body, the bolt 19 can be inserted into the inserting part 20, and the door body A and the door body B are locked.

The bolt locking mechanism adopts a motor to drive the bolt design, and the movement of the bolt 19 is driven by the motor.

The track position seal comprises a power part, a connecting rod transmission mechanism and two seal parts, wherein the power part comprises a connecting rod driving motor 10, a reciprocating motion mechanism 10 and a driving connecting piece 12, an output shaft of the driving motor 10 is connected with the reciprocating motion mechanism 10 to drive the reciprocating motion mechanism 10 to do reciprocating motion, the reciprocating motion mechanism 10 is hinged with the driving connecting piece 12, the connecting rod transmission mechanism comprises a first connecting rod 13, a second connecting rod 16 and an intermediate connecting rod 15, the first end of the first connecting rod 13 and the first end of the second connecting rod 16 are respectively hinged with the driving connecting piece 12, the second end of the first connecting rod 13 and the second end of the second connecting rod 16 are respectively connected with the seal parts, and the two ends of the intermediate connecting rod 15 are respectively hinged with the first connecting rod 13 and the second connecting rod 16.

The two sealing parts are respectively positioned on two sides of the track, each sealing part comprises a fixed block 14, a guide rail 17, a sliding groove 18 and a sealing head 25, a track groove matched with the track is formed in each sealing head 25, a sealing gasket 24 is arranged in each track groove, each sealing head 25 is fixedly connected with the corresponding fixed block 14, each fixed block 14 is hinged to the corresponding first connecting rod 13 or the corresponding second connecting rod 16, each guide rail 17 is connected with the corresponding fixed block 14, each guide rail 17 is slidably connected with the corresponding sliding groove 18 and can move along the corresponding sliding groove 18, and each sliding groove 18 is fixed on the corresponding side-hung 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 drive the fixing block 14 to move, so that the track is clamped and sealed through the two sealing heads 25, or the track is loosened, the sealing gasket 24 is arranged in the track groove, the sealing performance of the two sealing heads 25 in the process of clamping and sealing the track is further ensured, the guide rail 17 and the sliding groove 18 provide guiding for the movement of the fixing block 14.

The reciprocating mechanism 10 includes a screw, a nut and a reciprocating motor, the nut is sleeved on the screw and is engaged with the screw, the nut is connected with an output shaft of the reciprocating motor, and when the output shaft of the reciprocating motor rotates, the nut is driven to rotate, so that the screw is driven to reciprocate.

After the casement door body 3 is closed, the door body side part sealing piece 23 is extruded and sealed by the casement door body 3 and the door body base 1, the door seam sealing piece 21 is extruded and sealed by the door body A6 and the door body A7, the door body bottom sealing piece 22 is extruded and sealed by the casement door body 3 and the adjusting base 2, the casement door body 3 and the track are sealed and sealed by the track position, the bolt locking mechanisms at the door body A6 and the door body A7 are locked, the locking of the door body A6 and the door body A7 is realized, and the strength of bearing hydrostatic pressure is increased.

The door side sealing piece 23, the door seam sealing piece 21, the door bottom sealing piece 22 and the sealing gasket 24 are all made of rubber sealing strips, and sealing performance is guaranteed.

The flat-open type door body 3, the adjusting base 2 and the door body base 1 are all processed by high-quality carbon steel and then subjected to rust-proof and corrosion-proof treatment, and the outer panel is made of stainless steel.

In order to ensure the timeliness of closing the side hung door body 3 and effectively prevent flood from entering the subway entrance/exit (section) line through the flood gate, a water level detector, station monitoring equipment, field monitoring equipment and central monitoring equipment are further arranged.

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

And 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.

And the station monitoring equipment is used for receiving and displaying water level information at the inlet and the 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.

In addition, this embodiment has still set up control button, pilot lamp, alarm whistle alarm bell etc.. Control button, pilot lamp, alarm whistle bell etc. all are connected with on-the-spot supervisory equipment, can open the flat-open type door body 3 through control button and close, when detecting U type groove access point position information and surpassing the early warning line, send out the early warning through pilot lamp, alarm whistle bell etc..

When the working process of the open-section flood gate of the subway tunnel disclosed by the embodiment is as follows;

the conventional state is: the flat-open type door body is opened, when U type groove access point water level surpassed the early warning line, the door frame of the flat-open type door body of on-the-spot supervisory equipment control is rotatory around a body base, and the flat-open type door body closes, and control bolt locking mechanism locks two door bodies, and control door body elevating system drives a body and descends to the flat-open type door body and adjusts base, track laminating, and the control track position is sealed to the track presss from both sides tight sealedly, accomplishes the closed of the flat-open type door body.

When the water level recovers to a position below the early warning line, the position of the control track is sealed and the clamping seal of the track is removed, the control door body lifting mechanism drives the door body to rise for a set distance, flood discharge is carried out, then the control door body lifting mechanism drives the door body to rise to the highest position, the bolt locking mechanism is controlled to unlock, the door frame of the control side-hung door body rotates around the door body base, the side-hung door body is opened, and the initial position locking mechanism locks the side-hung door body.

The flood-proof door disclosed by the embodiment is further provided with an adjusting base, a door body bottom sealing piece, a door seam sealing piece, a door body side part sealing piece and a track position sealing piece on the basis of arranging the vertical hinged door body and the door body base, so that the waterproof sealing performance of the flood-proof door is ensured, and flood is effectively prevented from entering a subway exit and entrance (section) line through the flood-proof door; the water level detector is also arranged for acquiring water level information at the inlet and the outlet of the U-shaped groove, and the field monitoring equipment can control the position sealing of the flat-open door body and the track according to the water level information at the inlet and the outlet of the U-shaped groove acquired by the water level detector, so that flood can be effectively blocked outside the flood-proof door in time; the vertical lifting door plate is arranged on the basis of being capable of being opened and closed in a vertical lifting mode, and in the process of opening and closing the vertical lifting door body, the door plate is lifted to the highest position to prevent collision with facilities such as a rail and a third rail, and normal operation of opening and closing the vertical lifting door body is guaranteed; in order to improve the strength of the casement door body, the casement door body is arranged to be of a structure comprising a door body A and a door body B, a door seam sealing piece and a bolt locking mechanism are arranged between the door body A and the door body B, the door body B and the door body A are sealed through the door seam sealing piece, and the door body B and the door body A are locked through the bolt locking mechanism, so that the sealing performance between the door body A and the door body B is further ensured; still set up the track position and seal, through the motion of power part drive connecting rod drive mechanism, by two seal part actions of connecting rod drive mechanism control, press from both sides tight seal to the track, because two seal part are moved by connecting rod drive mechanism control simultaneously to guaranteed the synchronous of track both sides sealing control and gone on, guaranteed the sealed effect of track, improved control efficiency.

Example 2

In the embodiment, a subway tunnel open section flood control method is disclosed, which comprises 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.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

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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