CN217187518U - Subway tunnel flood control air bag with escape passage - Google Patents
Subway tunnel flood control air bag with escape passage Download PDFInfo
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- CN217187518U CN217187518U CN202220181757.5U CN202220181757U CN217187518U CN 217187518 U CN217187518 U CN 217187518U CN 202220181757 U CN202220181757 U CN 202220181757U CN 217187518 U CN217187518 U CN 217187518U
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Abstract
The utility model provides a subway tunnel flood control air bag with an escape passage, which comprises an air bag main body, wherein a diaphragm is horizontally arranged in the air bag main body and divides the air bag main body into an inflation cabin and an escape passage, the inflation cabin is positioned at the bottom of the air bag main body, and the escape passage is positioned at the top of the air bag main body; the diaphragm is provided with a plurality of one-way air valves, and the airflow direction of each one-way air valve flows from the inflatable cabin to the escape passage; an inflation opening is formed in the side wall of the inflation cabin, and escape doors are arranged on two sides of the airbag main body; when an inland inundation disaster occurs in the subway tunnel, external equipment inflates the air bag main body, and after the air bag main body is inflated, the outer wall of the air bag main body is in close contact with the subway tunnel wall, so that displacement is avoided under the action of water pressure, and water flow can be prevented from spreading in the subway tunnel; the escape personnel enter the escape passage by opening the escape door on the water-facing side, and escape from the escape door on the back water side to leave the escape passage safely, so that the problems of subway personal casualties and property loss caused by urban waterlogging are solved.
Description
Technical Field
The utility model relates to a shield tunnel operation safety protection equipment technical field, in particular to subway tunnel flood control gasbag of taking escape way.
Background
For cities with high development of urbanization and crowded and blocked ground traffic, the development of subways is an effective way for developing urban traffic by fully utilizing urban underground spaces. In recent years, under the influence of global warming, extreme weather frequently appears, local rainstorm intensity is increased, urban waterlogging is frequent, and various disasters are frequent. The extreme climatic conditions also have great adverse effects on the construction and operation of subways, flood disasters are natural disasters needing major defense in cities, once underground spaces are affected, accidents such as collapse of foundation pits of subways, water inflow and site water inflow caused by the extreme climates occur in places such as Beijing, Shanghai and Zheng states, and great influences are caused on the construction and normal operation of subways. In addition, the subway networks are connected with each other, and the waterlogging disaster of one subway easily spreads to nearby stations and sections, so that the flood control and waterlogging drainage of the subway become an urgent problem to be solved.
Flood spreading is blocked from the interior of the subway tunnel, an escape passage is provided for personnel, and the disaster area can be prevented from being enlarged. Therefore, the designed flood control air bag for the subway tunnel can avoid the casualties and property loss of the subway caused by urban waterlogging.
SUMMERY OF THE UTILITY MODEL
Blank to subway shield tunnel flood control equipment among the prior art, the utility model provides a take escape way's subway tunnel flood control gasbag solves and causes subway casualties and loss of property's problem because of urban waterlogging.
In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:
the subway tunnel flood-control air bag with the escape passage comprises an air bag main body, wherein after the air bag main body is inflated and expanded, the outer wall of the air bag main body is in close contact with the subway tunnel wall;
a diaphragm is horizontally arranged in the air bag main body and divides the air bag main body into an inflation cabin and an escape channel, the inflation cabin is positioned at the bottom of the air bag main body, and the escape channel is positioned at the top of the air bag main body;
the diaphragm is provided with a plurality of one-way air valves, and the airflow direction of each one-way air valve flows from the inflatable cabin to the escape passage;
an inflation opening used for being connected with external inflation equipment is arranged on the side wall of the inflation cabin, and escape doors communicated with the escape passage are arranged on the side walls of the two sides of the airbag main body.
The basic principle of the utility model is that: when a waterlogging disaster occurs in the subway tunnel, external equipment inflates the air bag main body through the inflation inlet, and when the pressure of the inflatable cabin reaches a threshold value, air can reach the escape passage through the one-way air valve; after the air bag main body is completely inflated, the outer wall of the air bag main body is in close contact with the wall of the subway tunnel, so that the air bag main body is not displaced under the action of water pressure, and water flow can be prevented from spreading in the subway tunnel; the escape personnel can enter the escape passage by opening the escape door on the water-facing side, and the escape passage is safely evacuated from the escape door on the water-back side, so that trapped persons can leave the flood control air bag, and the problems of subway personal casualties and property loss caused by urban waterlogging are solved.
Furthermore, the air bag wall of the air bag main body is of a three-layer structure, the air bag wall is sequentially provided with a pressure layer, a waterproof layer and a woven layer from inside to outside, the pressure layer is made of natural rubber, so that the pressure balance in the flood control air bag main body is ensured, and the waterproof layer is made of waterproof coiled materials, so that the air bag main body is ensured not to leak water in the using process; the material of weaving layer is the fibre material of weaving, produces frictional force between fibre material of weaving and the tunnel inner wall, guarantees not take place the displacement under the water pressure effect.
Furthermore, an air bag escape ladder is arranged on the side wall of the air bag main body on the water-facing side and is positioned below the escape door on the water-facing side; after the airbag main body is filled with gas, the airbag escape ladder is also completely expanded, and trapped people can climb to the escape door through the escape ladder, so that the escape ladder is convenient to escape in time.
Furthermore, an escape rope is arranged on the side wall of the air bag main body on the back water side, the escape rope is arranged below the escape door on the back water side, and the escape rope is arranged on the back water side and is used for trapped people to leave the air bag main body.
Furthermore, the two escape doors are hinged with the air bag main body through hinges, the inner end face and the outer end face of each escape door are respectively provided with a locking device, and each locking device comprises a plurality of fastening components arranged on the inner end face and the outer end face of each escape door and a plurality of knob switches rotatably arranged inside and outside the air bag main body; the fastening components and the knob switches are in one-to-one matching relationship;
and each fastening component is provided with a locking inclined surface, each knob switch is also provided with a locking inclined surface, the knob switch is rotated, and the locking inclined surface on the knob switch is contacted with the locking inclined surface on the fastening component tightly to realize the locking of the escape door and the airbag main body.
When flood disasters occur, the escape personnel climb the escape door with the high value through the air bag escape ladder, and the rotary switch is separated from the fastening component by rotating the external rotary switch, so that the escape door is not flexible and is convenient to open. After all the people enter the escape passage, the escape door is tightly attached to the fastening component by rotating the knob switch inside the escape passage, and at the moment, the escape door cannot be opened outwards any more, so that the water body is prevented from being filled inwards. And then the escape personnel open the escape door at the backwater side to enter a safe area.
Furthermore, each escape door is provided with an observation window, so that the external condition can be observed conveniently. The outer end face of each escape door is provided with a handrail, so that the escape door can be opened by pulling the handrails by hand.
Furthermore, as a specific setting mode of the one-way air valves, each one-way air valve comprises an air valve cylinder in sealing connection with the diaphragm, a bearing ring is arranged inside the air valve cylinder, a spring is arranged on the bearing ring, a circular cover plate with the bottom connected with the spring is movably arranged inside the air valve cylinder, the outer diameter of the circular cover plate is matched with the inner diameter of the air valve cylinder, an air outlet communicated with the escape passage is formed in the inner wall of the circumference of the air valve cylinder, and the air outlet is located at the top of the circular cover plate.
The air valve cylinder is embedded into the diaphragm, so that the air valve cylinder is connected with the diaphragm in a sealing manner, and the movement of the disc cover plate is controlled by the spring and the bearing ring; the disc cover plate is under the action of air pressure, so that the spring is stressed and extended, when the air pressure reaches a set threshold value, the disc cover plate moves to the air outlet, and the filling gas reaches the escape passage through the air outlet, so that one-way ventilation is realized.
The utility model has the advantages that: when a waterlogging disaster occurs in the subway tunnel, external equipment inflates the air bag main body through the inflation inlet, and when the pressure of the inflatable cabin reaches a threshold value, air can reach the escape passage through the one-way air valve; after the air bag main body is completely inflated, the outer wall of the air bag main body is in close contact with the wall of the subway tunnel, so that the air bag main body is not displaced under the action of water pressure, and water flow can be prevented from spreading in the subway tunnel; the escape personnel can enter the escape passage by opening the escape door on the water-facing side, and the escape passage is safely evacuated from the escape door on the water-back side, so that trapped persons can leave the flood control air bag, and the problems of subway personal casualties and property loss caused by urban waterlogging are solved.
Drawings
Fig. 1 is a schematic structural view of a subway tunnel flood control air bag with an escape passage.
Fig. 2 is a schematic view of the internal structure of a subway tunnel flood control airbag with an escape passage.
Fig. 3 is a schematic structural view of the escape door mounted on the airbag main body.
Fig. 4 is a schematic view of the fitting structure of the fastening member and the rotary switch.
Fig. 5 is a schematic view of a one-way air valve.
Fig. 6 is a schematic cross-sectional structure diagram of a subway tunnel.
Wherein, 1, the air bag main body; 2. a diaphragm; 3. an air inflation cabin; 4. an escape passage; 5. a one-way air valve; 6. an inflation inlet; 7. an escape door; 8. an air bag escape ladder; 9. an escape rope; 10. a hinge; 11. a tightening member; 12. a knob switch; 13. an observation window; 14. a handrail; 15. a valve barrel; 16. a load ring; 17. a spring; 18. a circular cover plate; 19. an air outlet; 20. the water facing side; 21. a backwater side; 22. building clearance; 23. a storage box.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.
As shown in fig. 1 to 6, the utility model provides a subway tunnel flood control airbag with an escape passage, which comprises an airbag main body 1, wherein after the airbag main body 1 is inflated and expanded, the outer wall of the airbag main body 1 is in close contact with the subway tunnel wall; the air bag wall of the air bag main body 1 is of a three-layer structure, the air bag wall is sequentially provided with a pressure layer, a waterproof layer and a woven layer from inside to outside, the pressure layer is made of natural rubber, so that pressure balance in the flood control air bag main body 1 is guaranteed, and the waterproof layer is made of waterproof coiled materials, so that the air bag main body 1 is guaranteed against water leakage in the using process; the material of weaving layer is the fibre material of weaving, produces frictional force between fibre material of weaving and the tunnel inner wall, guarantees not take place the displacement under the water pressure effect.
A diaphragm 2 is horizontally arranged in the air bag main body 1, the air bag main body 1 is divided into an inflation cabin 3 and an escape passage 4 by the diaphragm 2, the inflation cabin 3 is positioned at the bottom of the air bag main body 1, and the escape passage 4 is positioned at the top of the air bag main body 1.
The diaphragm 2 is provided with a plurality of one-way air valves 5, and the air flow direction of each one-way air valve 5 flows from the inflatable cabin 3 to the escape passage 4.
As shown in fig. 5, as a specific arrangement manner of the one-way air valves 5, each one-way air valve 5 includes an air valve cylinder 15 hermetically connected with the diaphragm 2, a bearing ring 16 is disposed inside the air valve cylinder 15, a spring 17 is disposed on the bearing ring 16, a circular cover plate 18 having a bottom connected with the spring 17 is movably disposed inside the air valve cylinder 15, an outer diameter of the circular cover plate 18 is matched with an inner diameter of the air valve cylinder 15, an air outlet 19 communicated with the escape passage 4 is disposed on an inner circumferential wall of the air valve cylinder 15, and the air outlet 19 is located at a top of the circular cover plate 18.
The air valve cylinder 15 is embedded into the diaphragm 2, so that the air valve cylinder 15 is hermetically connected with the diaphragm 2, and the movement of the disc cover plate is controlled by the spring 17 and the bearing ring 16; the disc cover plate is under the action of air pressure, so that the spring 17 is stressed to extend, when the air pressure reaches a set threshold value, the disc cover plate moves to the air outlet 19, and the filled air reaches the escape passage 4 through the air outlet 19, so that unidirectional ventilation is realized.
The side wall of the inflatable cabin 3 is provided with an inflation inlet 6 for connecting with external inflation equipment, and the side walls of the two sides of the airbag main body 1 are provided with escape doors 7 communicated with the escape passage 4.
An air bag escape ladder 8 is arranged on the side wall of the air bag main body 1 positioned on the water-facing side 20, and the air bag escape ladder 8 is positioned below the escape door 7 on the water-facing side 20; after the airbag main body 1 is filled with gas, the airbag escape ladder 8 is also fully expanded, and trapped people can climb to the escape door 7 through the escape ladder, so that the trapped people can escape in time.
The escape rope 9 is arranged on the side wall of the air bag main body 1 positioned on the backwater side 21, the escape rope 9 is positioned below the escape door 7 on the backwater side 21, and the escape rope 9 is positioned on the backwater side 21 to allow trapped people to leave the air bag main body 1.
The two escape doors 7 are hinged with the air bag main body 1 through hinges 10, the inner end face and the outer end face of each escape door 7 are respectively provided with a locking device, and each locking device comprises a plurality of fastening components 11 arranged on the inner end face and the outer end face of each escape door 7 and a plurality of knob switches 12 rotatably arranged inside and outside the air bag main body 1; the fastening components 11 and the knob switches 12 are in one-to-one matching relationship;
each fastening member 11 is provided with a locking inclined surface, each knob switch 12 is also provided with a locking inclined surface, the knob switch 12 is rotated, the locking inclined surfaces on the knob switches 12 are contacted and abutted tightly with the locking inclined surfaces on the fastening members 11, and the escape door 7 and the airbag main body 1 are locked.
When flood disasters occur, the escape personnel climb the escape door 7 with the high value through the air bag escape ladder 8, and the rotary switch 12 is rotated to separate the rotary switch 12 from the fastening component 11, so that the escape door 7 is not flexible and is convenient to open. After all people enter the escape passage 4, the internal knob switch 12 is rotated to be closely attached to the fastening member 11, and at the moment, the escape door 7 cannot be opened outwards any more, so that the water body is prevented from being filled. The evacuee opens the escape door 7 at the landside 21 to enter the safety area.
Each escape door 7 is provided with an observation window 13, so that the external condition can be observed conveniently. The outer end face of each escape door 7 is provided with a handrail 14, so that the escape doors 7 can be opened by pulling the handrails 14.
The basic principle of the utility model is that: when an inland inundation disaster occurs in the subway tunnel, external equipment inflates the air bag main body 1 through the inflation inlet 6, and when the pressure of the inflation cabin 3 reaches a threshold value, the air can reach the escape passage 4 through the one-way air valve 5; after the air bag main body 1 is completely inflated, the outer wall of the air bag main body 1 is in close contact with the wall of the subway tunnel, so that the air bag main body 1 is not displaced under the action of water pressure, and water flow can be prevented from spreading in the subway tunnel; the escape personnel can enter the escape passage 4 by opening the escape door 7 on the water-facing side 20, and safely evacuate out of the escape passage 4 from the escape door 7 on the water-backing side 21, so that the trapped personnel can leave the flood control air bag, and the problems of subway personal casualties and property loss caused by urban waterlogging are solved.
As shown in fig. 6, a storage box 23 for storing flood control airbags is arranged on a building boundary 22 of a subway tunnel, during the normal operation of the subway, the folded flood control airbags, the folded inflation tubes and the inflation equipment are all stored in the storage box 23, and the storage box 23 is positioned at one side of the tunnel and does not intrude into the subway equipment boundary and does not hinder the normal operation of the subway. When taking place flood disasters, 23 chamber doors of containing box are opened in proper order, and the flood control gasbag falls with the gas tube, hangs 4 sides of gasbag escape way with hanging wire, treats to aerify when certain degree, and the hanging wire disconnection, whole flood control gasbag drops to the track face, guarantees that escape way 4 is in the upside of longitudinal section.
Claims (7)
1. A subway tunnel flood control air bag with an escape passage is characterized by comprising an air bag main body, wherein after the air bag main body is inflated and expanded, the outer wall of the air bag main body is in close contact with the wall of a subway tunnel;
a diaphragm is horizontally arranged in the air bag main body, the diaphragm divides the air bag main body into an inflation cabin and an escape channel, the inflation cabin is positioned at the bottom of the air bag main body, and the escape channel is positioned at the top of the air bag main body;
the diaphragm is provided with a plurality of one-way air valves, and the airflow direction of each one-way air valve flows from the inflatable cabin to the escape passage;
an inflation opening used for being connected with external inflation equipment is arranged on the side wall of the inflation cabin, and escape doors communicated with the escape passage are arranged on the side walls of the two sides of the airbag main body.
2. A subway tunnel flood control air bag with an escape channel as claimed in claim 1, wherein the air bag wall of said air bag body is a three-layer structure, the air bag wall is sequentially provided with a pressure layer, a waterproof layer and a woven layer from inside to outside, the pressure layer is made of natural rubber, the waterproof layer is made of waterproof coiled material, and the woven layer is made of fiber woven material.
3. A subway tunnel flood protection airbag with an escape passage as claimed in claim 2, wherein an airbag escape ladder is provided on the side wall of the airbag main body on the water-facing side, and the airbag escape ladder is located below the escape door on the water-facing side.
4. A subway tunnel flood control air bag with an escape way as claimed in claim 3, wherein an escape rope is arranged on the side wall of the air bag body on the back water side, and said escape rope is positioned under said escape door on the back water side.
5. A subway tunnel flood protection airbag with an escape passage as claimed in claim 1, wherein two said escape doors are hinged with the airbag main body through hinges, each escape door is provided with a locking device on its inner and outer end faces, the locking device comprises a plurality of fastening members arranged on the inner and outer end faces of the escape door and a plurality of knob switches rotatably arranged inside and outside the airbag main body; the fastening components and the knob switches are in one-to-one matching relationship;
each tightening member is provided with a locking inclined surface, each knob switch is also provided with a locking inclined surface, the knob switch is rotated, the locking inclined surfaces on the knob switches are contacted and abutted with the locking inclined surfaces on the tightening members, and the escape door and the air bag main body are locked.
6. A subway tunnel flood protection airbag with an escape passage as claimed in claim 5, wherein each of said escape doors is provided with an observation window, and an outer end face of each of said escape doors is provided with a handrail.
7. A subway tunnel flood protection airbag with an escape channel as claimed in any one of claims 1 to 6, wherein each one-way air valve comprises an air valve cylinder hermetically connected with the diaphragm, a bearing ring is arranged inside the air valve cylinder, a spring is arranged on the bearing ring, a circular cover plate with the bottom connected with the spring is movably arranged inside the air valve cylinder, the outer diameter of the circular cover plate is matched with the inner diameter of the air valve cylinder, an air outlet communicated with the escape channel is formed in the inner wall of the circumference of the air valve cylinder, and the air outlet is located at the top of the circular cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220181757.5U CN217187518U (en) | 2022-01-21 | 2022-01-21 | Subway tunnel flood control air bag with escape passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220181757.5U CN217187518U (en) | 2022-01-21 | 2022-01-21 | Subway tunnel flood control air bag with escape passage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217187518U true CN217187518U (en) | 2022-08-16 |
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ID=82794895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220181757.5U Active CN217187518U (en) | 2022-01-21 | 2022-01-21 | Subway tunnel flood control air bag with escape passage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217187518U (en) |
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2022
- 2022-01-21 CN CN202220181757.5U patent/CN217187518U/en active Active
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