Rapid inflation integrated device for subway emergency evacuation air cushion

Abstract

The utility model belongs to the technical field of emergency safety, and particularly relates to a rapid inflation integrated device for a subway emergency evacuation air cushion, which comprises a high-pressure air bottle, a bottle opening manifold block is arranged at a bottle opening of the air bottle and connected with an ejector through a pipeline, and the ejector sucks a large amount of surrounding air through the drainage effect of compressed air and is used for inflating the air cushion. The high-pressure gas is rapidly ejected from the front section of the ejector to rapidly fill the air cushion, and the high-pressure gas is rapidly filled into the air cushion through the ejection gas flow by integrating a high-pressure gas cylinder, a gas inlet valve, a pressure display function, a safety valve, a pressure reduction function and a gas ejection function. The device is flexible in design, small in size and safe and reliable in function. After a control system is matched, the timing and quantitative function of gas emission can be achieved, and the device is suitable for working occasions with narrow installation space and large gas demand quantity.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency safety, in particular to a rapid inflation integrated device for a subway emergency evacuation air cushion. Background Technique

[0002] When a subway breaks down in a tunnel or a safety accident such as a fire, explosion, or earthquake occurs in the operating tunnel section, it often leads to an emergency stop, and passengers need to be evacuated urgently from the side doors. At this time, the emergency evacuation air cushion needs to be opened immediately to ensure the safe evacuation of passengers. Such a safety air cushion is L-shaped, with a walking passage at the bottom of the air cushion to prevent passengers from falling into the gap between the subway car and the tunnel, and the side of the air cushion can prevent passengers from being injured by colliding with the tunnel side wall during evacuation. There is no device for rapidly inflating the subway emergency evacuation air cushion in the existing technical materials. Content of the Utility Model

[0003] To solve the problems existing in the prior art, the main purpose of the utility model is to propose a rapid inflation integrated device for a subway emergency evacuation air cushion.

[0004] To solve the above technical problems, according to one aspect of the utility model, the following technical solutions are provided:

[0005] A rapid inflation integrated device for a subway emergency evacuation air cushion includes a high-pressure gas cylinder. A bottle mouth integrated block is arranged at the bottle mouth of the gas cylinder. The bottle mouth integrated block is connected to an ejector through a pipeline. Through the compressed gas drainage effect, the ejector inhales a large amount of surrounding air and sprays it out quickly from the front section of the ejector to quickly fill the air cushion.

[0006] As a preferred scheme of the rapid inflation integrated device for a subway emergency evacuation air cushion described in the utility model, a one-way valve is arranged at the rear section of the ejector.

[0007] As a preferred scheme of the rapid inflation integrated device for a subway emergency evacuation air cushion described in the utility model, the pressure of the high-pressure gas cylinder > 20 MPa.

[0008] As a preferred scheme of the rapid inflation integrated device for a subway emergency evacuation air cushion described in the utility model, an air inlet valve is arranged on the bottle mouth integrated block, and the air inlet valve is a one-way air inlet valve.

[0009] As a preferred scheme of the rapid inflation integrated device for a subway emergency evacuation air cushion described in the utility model, a pressure gauge is arranged on the bottle mouth integrated block, with a range of 0 - 40 MPa, for displaying the pressure inside the gas cylinder.

[0010] As a preferred scheme of the rapid inflation integrated device for a subway emergency evacuation air cushion described in the utility model, a safety valve is arranged on the bottle mouth integrated block, with a range of 0 - 35 MPa.

[0011] As a preferred embodiment of the rapid inflation integrated device for subway emergency evacuation air cushions of the present utility model, the following is provided: on the pipeline connecting the bottle mouth integrated block and the ejector, there are an electromagnetic valve and a pressure reducing unit; the electromagnetic valve controls whether the gas in the gas cylinder is released and is in a normally closed state; the pressure reducing unit allows the gas in the gas cylinder to be discharged according to the designed pressure requirement, and the designed pressure is 0.35 MPa.

[0012] As a preferred embodiment of the rapid inflation integrated device for subway emergency evacuation air cushions of the present utility model, the following is provided: the electromagnetic valve and the pressure reducing unit are connected by a union joint.

[0013] As a preferred embodiment of the rapid inflation integrated device for subway emergency evacuation air cushions of the present utility model, the following is provided: the electromagnetic valve is connected with an aviation plug for controlling the action of the electromagnetic valve, externally connecting a control system to ensure the deflation time.

[0014] As a preferred embodiment of the rapid inflation integrated device for subway emergency evacuation air cushions of the present utility model, the following is provided: the above-mentioned components are integrated in a housing, and the housing is provided with an observation window and an air replenishing port.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The present utility model provides a rapid inflation integrated device for subway emergency evacuation air cushions, which integrates a high-pressure gas cylinder, an intake valve, a pressure display function, a safety valve, a pressure reducing function, and a gas ejecting function, enabling high-pressure gas to quickly fill the air cushion through the ejecting air flow. This device has flexible design, small size, and safe and reliable functions. After being equipped with a control system, it can meet the functions of timed and quantitative gas discharge, and is suitable for working occasions with narrow installation space and large gas demand. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0018] Figure 1 It is a schematic structural diagram of the rapid inflation integrated device for subway emergency evacuation air cushions of the present utility model.

[0019] Explanation of the reference numerals in the drawings:

[0020] 1 - gas cylinder, 2 - bottle mouth integrated block, 3 - intake valve, 4 - pressure gauge, 5 - aviation plug, 6 - electromagnetic valve, 7 - union joint, 8 - pressure reducing unit, 9 - ejector, 10 - safety valve.

[0021] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0022] The technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0024] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0025] As Figure 1 shown, the present utility model provides a rapid inflation integration device for subway emergency evacuation air cushions, including a high-pressure gas cylinder 1. A bottle mouth integration block 2 is arranged at the bottle mouth of the gas cylinder 1. The bottle mouth integration block 2 is connected to an ejector 9 through a pipeline. Through the compressed gas drainage effect, the ejector 9 inhales a large amount of surrounding air and quickly sprays it out from the front section of the ejector 9 to quickly fill the air cushion.

[0026] In an embodiment of the present utility model, a one-way valve is arranged at the rear section of the ejector 9.

[0027] In an embodiment of the present utility model, the pressure of the high-pressure gas cylinder 1 > 20 MPa.

[0028] In an embodiment of the present utility model, an air inlet valve 3 is arranged on the bottle mouth integration block 2, and the air inlet valve 3 is a one-way air inlet valve.

[0029] In an embodiment of the present utility model, a pressure gauge 4 with a measuring range of 0 - 40 MPa is provided on the bottle mouth integrated block 2, which is used to display the pressure inside the gas cylinder 1.

[0030] In an embodiment of the present utility model, a safety valve 10 with a measuring range of 0 - 35 MPa is provided on the bottle mouth integrated block 2.

[0031] In an embodiment of the present utility model, a solenoid valve 6 and a pressure reducing unit 8 are provided on the pipeline connecting the bottle mouth integrated block 2 and the ejector 9; the solenoid valve 6 controls whether the gas inside the gas cylinder 1 is released and is in a normally closed state; the pressure reducing unit 8 allows the gas inside the gas cylinder 1 to be discharged according to the designed pressure requirement, and the designed pressure is 0.35 MPa.

[0032] In an embodiment of the present utility model, the solenoid valve 6 and the pressure reducing unit 8 are connected by a union 7.

[0033] In an embodiment of the present utility model, the solenoid valve 6 is connected with an aviation plug 5, which is used to control the action of the solenoid valve 6, externally connect a control system, and ensure the gas release time.

[0034] In an embodiment of the present utility model, the above-mentioned components are integrated in a shell, and the shell is provided with an observation window and an air filling port.

[0035] For the high-pressure part of the present utility model, the pipelines between components are sealed by copper gaskets, ferrule seals and welding, and the low-pressure part uses general gas path parts.

[0036] When a subway emergency evacuation air cushion rapid inflation integrated device provided by the present utility model is in use, the control system connected to the aviation plug 5 sends a signal to control the solenoid valve 6, so that the solenoid valve 6 is energized and changes from the normally closed state to the open state. The high-pressure gas passes through the gas cylinder 1, the bottle mouth integrated block 2, the solenoid valve 6, and the union 7 and is discharged at high speed to the pressure reducing unit 8. Due to the pressure regulating effect of the pressure reducing unit 8, the gas pressure becomes 0.35 MPa for output, and the exhaust volume is about 1000 L / min. At this time, the driving gas of 0.35 MPa enters the ejector 9. Under the guiding action of the driving gas, there is a pressure difference inside and outside the ejector 9, and the check valve at the rear section of the ejector 9 opens. A large amount of air enters with the driving gas from the rear section of the ejector 9 and is quickly ejected from the front section of the ejector 9 to fill the air cushion. After the inflation is completed, the external control system sends a signal to control the solenoid valve 6 to cut off the power, and the working state of the solenoid valve 6 changes from the open state to the normally closed state. The driving gas in the high-pressure part is sealed. The air cushion is filled and the work is completed. Three groups of the present utility model are taken as a unit, and high-pressure gas is released simultaneously, and the air cushion can be filled within 15S (4.2m 3 )

[0037] The above are only the preferred embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification of the present utility model under the inventive concept of the present utility model, or any direct / indirect application in other relevant technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. A subway emergency evacuation air cushion rapid inflation integrated device, characterized in that: It includes a high-pressure gas cylinder, the bottle mouth of which is provided with a bottle mouth integrated block, the bottle mouth integrated block is connected to the ejector through a pipeline, the ejector draws in a large amount of surrounding air through the drainage effect of compressed gas, and sprays it out quickly from the front end of the ejector to quickly fill the air cushion.

2. The subway emergency evacuation air cushion rapid inflation integrated device according to claim 1 is characterized in that: A one-way valve is provided at the rear section of the ejector.

3. The subway emergency evacuation air cushion rapid inflation integrated device according to claim 1 is characterized in that: The pressure of high-pressure gas cylinders is >20MPa.

4. The subway emergency evacuation air cushion rapid inflation integrated device according to claim 1, characterized in that: An air intake valve is arranged on the bottle mouth integrated block, and the air intake valve is a one-way air intake valve.

5. The subway emergency evacuation air cushion rapid inflation integrated device according to claim 1 is characterized in that: A pressure gauge with a measuring range of 0 to 40 MPa is provided on the bottle mouth integrated block to display the pressure inside the gas cylinder.

6. The subway emergency evacuation air cushion rapid inflation integrated device according to claim 1, characterized in that: A safety valve is provided on the bottle mouth integrated block, with a measuring range of 0 to 35 MPa.

7. The subway emergency evacuation air cushion rapid inflation integrated device according to claim 1, characterized in that: A solenoid valve and a pressure reducing unit are provided on the pipeline connecting the bottle mouth integrated block and the ejector; the solenoid valve controls whether the gas in the gas cylinder is released and is in a normally closed state; the pressure reducing unit allows the gas in the gas cylinder to be discharged according to the design pressure requirements, and the design pressure is 0.35MPa.

8. The subway emergency evacuation air cushion rapid inflation integrated device according to claim 1, characterized in that: The solenoid valve and the pressure reducing unit are connected by a flexible joint.

9. The subway emergency evacuation air cushion rapid inflation integrated device according to claim 1, characterized in that: The solenoid valve is connected with an aviation plug, which is used to control the action of the solenoid valve and an external control system to ensure the deflation time.

10. The subway emergency evacuation air cushion rapid inflation integrated device according to claim 1, characterized in that: The various components are integrated in a shell, and the shell is provided with an observation window and an air supply port.

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