Emergency deflation valve and oxygen cabin thereof

Abstract

The utility model relates to an emergency deflation valve and an oxygen cabin thereof, in particular to an 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 core 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, and under the condition of power failure or other special accidents, the situation that people in the sealed cavity are suffocated can be effectively prevented by applying the mechanical characteristics of the emergency valve.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen chambers, in particular to an emergency air release valve and an oxygen chamber 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 use of cabins with current 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 valves used in the above-mentioned sealed cavities require a long time to introduce gas, or require 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 relatively general emergency valves. In the process of changes in internal and external pressures, general emergency valves do not have the function of actively assisting in opening and closing. Utility Model Content

[0003] In order 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 inside 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 releases and / or seals the gas and adjusts the pressure in the cabin through the up and down movement of the valve core 3;

[0008] Spring 4;

[0009] A spring seat 5 is used to install the spring 4 in the valve body 1;

[0010] Among them, the valve core 3, spring 4 and spring seat 5 are installed on the screw 2 in sequence from top to bottom;

[0011] When the pressure in the cabin is appropriate, the screw 2 drives the valve core 3 to move downward, and the lower end of the valve core 3 fits into the middle hole of the valve body 1, completing the sealing of the gas in the cabin;

[0012] 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.

[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 installation cavity 101 and the screw 2 .

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

[0019] In order 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] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The emergency release valve self-regulates overpressure and underpressure, and spring energy storage provides auxiliary regulation, effectively increasing ease of use. When the air pressure in the chamber exceeds the set pressure of the automatic air release valve, the valve automatically releases air to stabilize the pressure inside the chamber, preventing the chamber from bursting or causing discomfort to the human body due to high pressure. In the event of a power outage or other special emergency, the mechanical properties of the emergency valve can effectively prevent suffocation of personnel in the sealed chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of the emergency air release valve of the present utility model;

[0024] Figure 2 This is a structural diagram of the valve core of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the spring seat of the present utility model.

[0026] In the figure: valve body 1, upper mounting cavity 101, lower mounting cavity 102, screw 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

[0027] The following will be combined with the accompanying 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 embodiments described 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 making creative efforts are all within the scope of protection of the present invention.

[0028] Example 1

[0029] 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:

[0030] 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;

[0031] Screw 2; the screw 2 is vertically located in the valve body 1;

[0032] Please also see Figure 2 The valve core 3 releases and / or seals the gas and adjusts the pressure in the cabin through the up and down movement of the valve core 3;

[0033] Spring 4;

[0034] Please also see Figure 3 , spring seat 5, used to install the spring 4 in the valve body 1;

[0035] Among them, the valve core 3, spring 4 and spring seat 5 are installed on the screw 2 in sequence from top to bottom;

[0036] When the pressure in the cabin is appropriate, the screw 2 drives the valve core 3 to move downward, and the lower end of the valve core 3 fits into the middle hole of the valve body 1, completing the sealing of the gas in the cabin;

[0037] 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.

[0038] Furthermore, the valve core 3 is located in the upper installation cavity 101 .

[0039] Furthermore, the spring 4 and the spring seat 5 are located in the lower mounting cavity 102 .

[0040] Furthermore, a first handle 6 is installed on the screw rod 2 near one end of the valve core 3 .

[0041] Furthermore, a second handle 7 is installed on the screw rod 2 near one end of the spring seat 5 .

[0042] Furthermore, a sealing ring structure 8 is provided between the valve core 3 and the lower surface of the upper installation cavity 101 and the screw 2 .

[0043] Furthermore, the valve core 3 and the spring seat 5 are both mounted on the screw 2 via an adjusting nut 9 .

[0044] 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 moves downward through the screw 2. The lower end of the valve core 3 fits into the middle hole of the valve body 1, completing the sealing of the gas in the cabin;

[0045] When the pressure in the cabin is too high, the user presses the second handle 7 upward, driving the spring 4 and the valve core 3 upward 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.

[0046] Example 2

[0047] An oxygen chamber comprising at least one emergency air release valve as described in the above-mentioned embodiment 1.

[0048] Specifically, the emergency air release valve is installed on the shell surface of the oxygen cabin through the mounting nut 10 outside the valve body.

[0049] 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 are within the scope of protection of the present invention. In short, its scope of protection 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 inside the cabin. It is characterized by: The air release 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 (2); the screw (2) is vertically located in the valve body (1); The valve core (3) is used to release and / or seal 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), spring (4) and spring seat (5) are sequentially mounted on the screw (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), 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 cabin pressure.

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) near one end of 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 (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 (2) via an adjusting nut (9).

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

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