Emergency deflation valve, oxygen cabin and use method of emergency deflation valve

Abstract

The invention relates to an emergency deflation valve, an oxygen cabin and a using method of the emergency deflation valve, and particularly discloses the emergency deflation valve which is used for releasing gas into the cabin in time and adjusting the pressure in the cabin and comprises a valve body, a screw rod, a valve element and a spring seat. When the pressure in the cabin is appropriate, the valve element is driven by the screw rod to move downwards, the lower end of the valve element is attached to the middle hole of the valve body, and gas in the cabin is sealed; when the pressure in the cabin is too large, the screw drives the spring and the valve element to move upwards, the lower end of the valve element is separated from the middle hole of the valve body, external air enters the cabin, and the pressure in the cabin is released; the oxygen cabin comprises the emergency deflation valve, the method is suitable for the emergency deflation valve, and under the condition of power failure or other special accidents, the situation that people in the sealed cavity suffocate can be effectively prevented by applying the mechanical characteristics of the emergency valve.

Description

Technical Field

[0001] The present invention relates to the technical field of oxygen chambers, and in particular to an emergency air release valve, an oxygen chamber and a use method thereof. Background Art

[0002] The human body needs to be in a space and living environment with certain conditions at all times. In many emergency situations, life-saving equipment is necessary to ensure people's life safety. Among the life-saving equipment, equipment used to isolate the harsh external environment is particularly important, such as oxygen chambers. The current use of cabins with sealing requirements cannot be widely promoted and applied, mainly because the current sealed cavities are large in size, complex in structure, expensive, and not very safe, and require personnel with professional knowledge to operate. Especially when the internal air pressure is low, the ordinary emergency valve used in the above-mentioned sealed cavity requires a long time to pass the gas, or requires a large pressure difference to form a rapid connection, which poses a safety hazard to the human body. Moreover, the existing emergency valves are not used for sealed cavities, and are all more general emergency valves. In the process of changes in internal and external pressures, general emergency valves do not have the function of actively assisting opening and closing. Summary of the invention

[0003] To achieve the above first purpose, the present invention provides the following technical solutions:

[0004] Emergency air release valve, which is used to release gas into the cabin in time to adjust the pressure in the cabin. The air release valve includes:

[0005] The valve body 1 is used to carry the components of the emergency air release valve; the valve body 1 is a hollow cylinder, and is divided into an upper installation cavity 101 and a lower installation cavity 102 by a partition with a middle hole;

[0006] Screw 2; the screw 2 is vertically located in the valve body 1;

[0007] The valve core 3 is used to release and / or seal the gas and adjust the pressure in the cabin through the up and down movement of the valve core 3;

[0008] Spring 4;

[0009] A spring seat 5, used for installing the spring 4 in the valve body 1;

[0010] The valve core 3, the spring 4 and the spring seat 5 are sequentially installed on the screw rod 2 from top to bottom;

[0011] When the pressure in the cabin is appropriate, the valve core 3 is driven downward by the screw 2, and the lower end of the valve core 3 fits with the middle hole of the valve body 1 to complete the sealing of the gas in the cabin;

[0012] When the pressure in the cabin is too high, the spring 4 and the valve core 3 are driven upward by the screw 2 to separate the lower end of the valve core 3 from the middle hole of the valve body 1, allowing external gas to enter the cabin and release the pressure in the cabin.

[0013] Furthermore, the valve core 3 is located in the upper installation cavity 101 .

[0014] Furthermore, the spring 4 and the spring seat 5 are located in the lower mounting cavity 102 .

[0015] Furthermore, a first handle 6 is installed on the screw rod 2 near one end of the valve core 3 .

[0016] Furthermore, a second handle 7 is installed on the screw rod 2 near one end of the spring seat 5 .

[0017] Furthermore, a sealing ring structure 8 is provided between the valve core 3 and the lower surface of the upper mounting cavity 101 and the screw rod 2 .

[0018] Furthermore, the valve core 3 and the spring seat 5 are both mounted on the screw rod 2 via an adjusting nut 9 .

[0019] To achieve the above second purpose, the present invention provides the following technical solutions:

[0020] An oxygen chamber comprising at least one of the above-mentioned emergency deflation valves.

[0021] To achieve the third objective, the present invention provides the following technical solutions:

[0022] A method for using an emergency air release valve, which is applicable to the above-mentioned emergency air release valve, comprises:

[0023] S1. The first handle 6 is pressed downward, and the screw rod 2 moves downward, driving the valve core 3 to move downward through the screw rod 2. The lower end of the valve core 3 fits with the middle hole of the valve body 1 to complete the sealing;

[0024] S2. The second handle 7 is pressed upward, and the screw 2 moves upward, driving the spring 4 and the valve core 3 to move upward, separating the lower end of the valve core 3 from the middle hole of the valve body 1, allowing external gas to enter the cabin and release the pressure in the cabin.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The emergency abandonment valve is used to self-regulate the overpressure and underpressure conditions, and the spring energy storage is used for auxiliary adjustment, which can effectively increase the convenience of use. When the air pressure in the cavity is higher than the air pressure set by the automatic deflation valve, the automatic deflation valve will automatically deflate to stabilize the pressure in the cabin to prevent the cabin from bursting or the human body from being uncomfortable under high pressure. In the event of a power outage or other special accidents, the mechanical characteristics of the emergency valve can effectively prevent suffocation of people in the sealed cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the emergency air release valve of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the valve core of the present invention;

[0029] Figure 3 It is a structural schematic diagram of the spring seat of the present invention.

[0030] In the figure: valve body 1, upper mounting cavity 101, lower mounting cavity 102, screw rod 2, valve core 3, spring 4, spring seat 5, first handle 6, second handle 7, sealing ring structure 8, adjusting nut 9; 10, mounting nut. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the present invention.

[0032] Example 1

[0033] Please also see Figure 1 , emergency air release valve, which is used to release gas into the cabin in time to adjust the pressure in the cabin. The air release valve includes:

[0034] The valve body 1 is used to carry the components of the emergency air release valve; the valve body 1 is a hollow cylinder, and is divided into an upper installation cavity 101 and a lower installation cavity 102 by a partition with a middle hole;

[0035] Screw 2; the screw 2 is vertically located in the valve body 1;

[0036] Please also see Figure 2 , the valve core 3, through the up and down movement of the valve core 3, the gas is released and / or sealed to adjust the pressure in the cabin;

[0037] Spring 4;

[0038] Please also see Figure 3 , a spring seat 5, used for installing the spring 4 in the valve body 1;

[0039] The valve core 3, the spring 4 and the spring seat 5 are sequentially installed on the screw rod 2 from top to bottom;

[0040] When the pressure in the cabin is appropriate, the valve core 3 is driven downward by the screw 2, and the lower end of the valve core 3 fits with the middle hole of the valve body 1 to complete the sealing of the gas in the cabin;

[0041] When the pressure in the cabin is too high, the spring 4 and the valve core 3 are driven upward by the screw 2 to separate the lower end of the valve core 3 from the middle hole of the valve body 1, allowing external gas to enter the cabin and release the pressure in the cabin.

[0042] Furthermore, the valve core 3 is located in the upper installation cavity 101 .

[0043] Furthermore, the spring 4 and the spring seat 5 are located in the lower mounting cavity 102 .

[0044] Furthermore, a first handle 6 is installed on the screw rod 2 near one end of the valve core 3 .

[0045] Furthermore, a second handle 7 is installed on the screw rod 2 near one end of the spring seat 5 .

[0046] Furthermore, a sealing ring structure 8 is provided between the valve core 3 and the lower surface of the upper mounting cavity 101 and the screw rod 2 .

[0047] Furthermore, the valve core 3 and the spring seat 5 are both mounted on the screw rod 2 via an adjusting nut 9 .

[0048] The working process is as follows: when the pressure in the cabin is appropriate, the user presses the first handle 6 downward, and the valve core 3 is driven downward by the screw 2, and the lower end of the valve core 3 fits with the middle hole of the valve body 1 to complete the sealing of the gas in the cabin;

[0049] When the pressure in the cabin is too high, the user presses the second handle 7 upwards, driving the spring 4 and the valve core 3 upwards through the screw 2, separating the lower end of the valve core 3 from the middle hole of the valve body 1, allowing external gas to enter the cabin and release the pressure in the cabin.

[0050] Example 2

[0051] An oxygen chamber comprising at least one emergency deflation valve as described in the above-mentioned embodiment 1.

[0052] Specifically, the emergency deflation valve is installed on the shell surface of the oxygen cabin through the mounting nut 10 outside the valve body.

[0053] Example 3

[0054] A method for using an emergency air release valve, which is applicable to the emergency air release valve described in the above embodiment 1, comprises:

[0055] S1. The first handle 6 is pressed downward, and the screw rod 2 moves downward, driving the valve core 3 to move downward through the screw rod 2. The lower end of the valve core 3 fits with the middle hole of the valve body 1 to complete the sealing;

[0056] S2. The second handle 7 is pressed upward, and the screw 2 moves upward, driving the spring 4 and the valve core 3 to move upward, separating the lower end of the valve core 3 from the middle hole of the valve body 1, allowing external gas to enter the cabin and release the pressure in the cabin.

[0057] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the protection scope of the present invention. In short, its protection scope is defined by the claims and their equivalents.

Claims

1. Emergency air release valve, which is used to release gas into the cabin in time to adjust the pressure in the cabin, and its characteristics are: The bleed valve includes: A valve body (1) is used to carry components of an emergency air release valve; the valve body (1) is a hollow cylinder, and is divided into an upper installation cavity (101) and a lower installation cavity (102) by a partition with a middle hole; A screw rod (2); the screw rod (2) is vertically located in the valve body (1); The valve core (3) is used to release and / or seal the gas and adjust the pressure in the cabin through the up and down movement of the valve core (3); Spring (4); A spring seat (5) for mounting the spring (4) in the valve body (1); The valve core (3), the spring (4) and the spring seat (5) are sequentially mounted on the screw rod (2) from top to bottom; When the pressure in the cabin is appropriate, the valve core (3) is driven downward by the screw (2), and the lower end of the valve core (3) fits into the middle hole of the valve body (1), thereby completing the sealing of the gas in the cabin; When the pressure in the cabin is too high, the screw (2) drives the spring (4) and the valve core (3) to move upward, separating the lower end of the valve core (3) from the middle hole of the valve body (1), allowing external gas to enter the cabin and release the pressure in the cabin.

2. The emergency air release valve according to claim 1, characterized in that: The valve core (3) is located in the upper installation cavity (101).

3. The emergency air release valve according to claim 2, characterized in that: The spring (4) and the spring seat (5) are located in the lower mounting cavity (102).

4. The emergency air release valve according to claim 1, characterized in that: A first handle (6) is installed on the screw rod (2) at one end close to the valve core (3).

5. The emergency air release valve according to claim 1, characterized in that: A second handle (7) is installed on the screw rod (2) at one end close to the spring seat (5).

6. The emergency air release valve according to claim 2, characterized in that: A sealing ring structure (8) is provided between the valve core (3), the lower surface of the upper mounting cavity (101) and the screw rod (2).

7. The emergency air release valve according to claim 1, characterized in that: The valve core (3) and the spring seat (5) are both mounted on the screw rod (2) via an adjusting nut (9).

8. Oxygen chamber, characterized in that: The oxygen chamber comprises at least one emergency deflation valve according to any one of claims 1-7.

9. The method for using the emergency air release valve is characterized in that: The method is applicable to the emergency air release valve according to any one of claims 1 to 7, and the method comprises: S1. The first handle (6) is pressed downward, and the screw (2) moves downward, driving the valve core (3) to move downward through the screw (2), so that the lower end of the valve core (3) fits into the middle hole of the valve body (1), thereby completing the sealing; S2. The second handle (7) is pressed upward, and the screw (2) moves upward, driving the spring (4) and the valve core (3) to move upward, separating the lower end of the valve core (3) from the middle hole of the valve body (1), allowing external gas to enter the cabin and release the pressure in the cabin.

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