Oxygen reaction tank of chemical oxygen fire-fighting self-rescue respirator

Abstract

The utility model relates to a respirator, in particular to an oxygen reaction tank of a chemical oxygen fire-fighting self-rescue respirator, which comprises an oxygen generating tank used for generating oxygen, an air bag used for storing oxygen and a cleaning tank used for processing exhaled air, and the output end of the cleaning tank is connected with a mixing tank used for mixing the processed air and oxygen. The mixing tank is connected to the output end of the oxygen generation tank, and the output end of the mixing tank is installed in the air bag. By adopting the mixing tank, the oxygen generating tank and the cleaning tank are used for discharging oxygen and treated exhaled gas respectively, the oxygen and the treated gas are fully mixed through the mixing tank, and the air bag is filled with the mixed oxygen and the treated gas for collection, so that the problem that in the prior art, the oxygen and the treated exhaled gas cannot be collected easily can be solved in the process. The problem that air cannot be uniformly mixed due to the fact that the air bag is directly filled with the air bag is solved, and therefore the comfort degree of a user in the breathing process can be guaranteed.

Description

Technical Field

[0001] The utility model relates to a respirator, in particular to an oxygen reaction tank of a chemical oxygen fire-fighting self-rescue respirator. Background Art

[0002] The working principle of the respirator oxygen reactor is mainly based on internal circulation and carbon dioxide absorption, quantitative oxygen supply, and automatic or manual oxygen supply when necessary.

[0003] For example, in the patent document with application number 202110816197.6, a chemical oxygen fire-fighting self-rescue respirator is disclosed, and it is specifically disclosed that by discharging the obtained high-temperature oxygen downward, the problem of the high-temperature oxygen generated in the reaction tank directly entering the breathing mask when the user inhales is avoided.

[0004] In the above technical solution, pure oxygen needs to be discharged into the air bag and mixed with the processed exhaled gas to form oxygen-containing gas for inhalation. However, due to the large size of the air bag, the pure oxygen cannot be fully mixed with the processed exhaled gas, resulting in an unstable gas ratio in the breathing mask, affecting breathing comfort. Utility Model Content

[0005] The technical problem solved by the utility model is to solve the problem in the prior art that the air bag is too large and the oxygen and the treated exhaled gas cannot be mixed evenly.

[0006] The utility model can be implemented through the following technical solutions: the oxygen reaction tank of the chemical oxygen fire-fighting self-rescue respirator includes an oxygen generating tank for generating oxygen and an air bag for storing oxygen, and also includes a purification tank for treating exhaled gas, the output end of the purification tank is connected to a mixing tank for mixing the treated gas and oxygen, the mixing tank is connected to the output end of the oxygen generating tank, and the output end of the mixing tank is installed inside the air bag.

[0007] The further technical improvement of the utility model is that a flow control valve is installed between the mixing tank and the oxygen generating tank, and a discharge one-way valve is installed between the cleaning tank and the mixing tank.

[0008] A further technical improvement of the present invention is that an elastic plate is slidingly provided inside the mixing tank, and a total exhaust one-way valve for achieving gas exhaust is provided in the middle of the elastic plate.

[0009] A further technical improvement of the present invention is that a pressure spring is fixed above the elastic plate, and the other end of the pressure spring is fixed on the mixing tank.

[0010] A further technical improvement of the present invention is that the oxygen generating tank, the purification tank and the mixing tank are fixedly mounted on the internal support frame, the internal support frame is fixedly connected to the top support frame, and the top support frame is fixedly connected to the airbag.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The present application adopts a mixing tank, so that the oxygen generating tank and the purification tank are used to discharge oxygen and the treated exhaled gas respectively, and the oxygen and the treated gas are fully mixed through the mixing tank. After mixing, they are filled into the air bag for collection. This process can solve the problem of uneven mixing of gases caused by directly filling them into the air bag in the prior art, thereby ensuring the comfort of the user when breathing.

[0013] 2. The present application provides an elastic plate inside the mixing tank, and a total exhaust one-way valve for achieving gas discharge is provided in the middle of the elastic plate, so that when oxygen and treated gas are filled into the mixing tank, the elastic plate is squeezed, so that the gas gradually increases and the pressure gradually increases, thereby achieving sufficient mixing of the gas. After the mixing is completed, the gas is discharged through the total exhaust one-way valve, thereby ensuring the effect of gas mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the position of the mixing tank of the present utility model;

[0016] Figure 2 This is a schematic diagram of the position of the elastic plate of the present utility model.

[0017] In the figure: 1. Oxygen generator tank; 2. Mixing tank; 3. Air bag; 4. Internal support frame; 5. Purification tank; 6. Hollow support frame; 7. Top support frame; 8. Total exhaust check valve; 9. Pressure control valve; 10. Flow control valve; 11. Connecting pipe; 12. Inlet pipe; 13. Exhaust check valve; 14. Elastic plate; 15. Pressure spring; 16. Oxygen exhaust pipe; 17. Inlet check valve; 18. Mask. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0019] See also Figure 1-2As shown, the oxygen reaction tank of the chemical oxygen fire-fighting self-rescue breathing apparatus includes a top support frame 7, on which an air bag 3 is fixed, and the output end of the air bag 3 is sealed by the top support frame 7, and a hollow support frame 6 is fixed on the top support frame 7, and the interior of the hollow support frame 6 is connected to the mask 18 through a one-way valve, that is, the one-way valve is used to only allow the gas inside the air bag 3 to be sucked out, and the mask 18 is also provided with a collecting pipe for collecting exhaled gas, and the collecting pipe is connected to the purification tank 5 through the air inlet one-way valve 17, and the exhaled gas can enter the interior of the air inlet one-way valve 17 through the collecting pipe to achieve the treatment of the exhaled gas.

[0020] In the present application, the carbon dioxide exhaled by the user is adsorbed by the calcium hydroxide inside the purification tank 5, and the remaining gas will be discharged by the purification tank 5, so a discharge one-way valve 13 is also provided at the bottom of the purification tank 5, and the discharge one-way valve 13 is used to realize the one-way discharge of the bottom gas, and enter the interior of the mixing tank 2 through the air intake pipe 12, so that the mixing tank 2 is used to fully mix the gas, and the bottom of the oxygen generating tank 1 is provided with a connecting pipe 11 through the flow control valve 10, so that the oxygen generated by the oxygen generating tank 1 enters the interior of the mixing tank 2 through the connecting pipe 11. At this time, the mixing tank 2 is used to mix the oxygen and the treated exhaled gas, and then discharge it through the total discharge one-way valve 8 on the top of the mixing tank 2, that is, the gas is discharged to the interior of the air bag 3 through the oxygen discharge pipe 16, and the air bag 3 is used to store the discharged inhalable oxygen, which is convenient for rapid oxygen supply operation when the user breathes rapidly.

[0021] In the present application, the oxygen generating tank 1, the purification tank 5 and the mixing tank 2 are all fixedly mounted on the internal support frame 4, and the internal support frame 4 is fixedly mounted on the top support frame 7 through a connecting column to maintain the stability of the internal oxygen generating tank 1, the purification tank 5 and the mixing tank 2.

[0022] In order to achieve a full mixing of the generated oxygen and the exhaled inhaled air after treatment, in the present application, the mixing tank 2 includes a tank body, the bottom of which is respectively connected and installed with a connecting pipe 11 and an air inlet pipe 12, and an elastic plate 14 is slidingly arranged inside the tank body, the connecting surface of which is made of rubber, so that the elastic plate 14 acts as a piston and can detect the pressure inside the mixing tank 2, and a total discharge one-way valve 8 is connected to the tank body, and the total discharge one-way valve 8 is installed at the other end of the tank body, and the total discharge one-way valve 8 is connected to the oxygen discharge pipe 16, the output end of the oxygen discharge pipe 16 is located inside the air bag 3, and a pressure control valve 9 is provided in the middle position of the elastic plate 14 for unloading the pressure inside the tank body, and at the same time, a pressure spring 15 is fixed to the end of the elastic plate 14 away from the connecting pipe 11, and the other end of the pressure spring 15 is fixed to the inside of the tank body. When in use, the pressure spring 15 and gravity make the The elastic plate 14 moves to the bottom end. At this time, oxygen and treated gas enter through the connecting pipe 11 and the air inlet pipe 12 respectively. The two gases are fully mixed inside the tank body and exert upward pressure on the elastic plate 14, causing the elastic plate 14 to move upward, squeezing the pressure spring 15 until it is squeezed to a certain state. At this time, the pressure control valve 9 is used for sensing, so that the pressure control valve 9 is opened, and the mixed gas is discharged through the total exhaust one-way valve 8, and then discharged into the interior of the airbag 3 through the oxygen exhaust pipe 16. At this time, the pressure control valve 9 remains open, and the elastic plate 14 moves downward. When it moves to the bottom end, the pressure above the mixing tank 2 is balanced and the pressure control valve 9 is closed. The cycle is repeated to obtain fully mixed oxygen and treated gas. In this process, the mixing time of oxygen and treated gas can be prolonged, and the temperature of the gas can be reduced to obtain inhalable gas of suitable temperature, thereby ensuring the user's comfort.

[0023] When the present invention is in use, the carbon dioxide exhaled by the user is adsorbed by the calcium hydroxide inside the purification tank 5, and the remaining gas will be discharged by the purification tank 5, so the bottom of the purification tank 5 is also provided with a discharge check valve 13, and the discharge check valve 13 is used to realize the one-way discharge of the bottom gas, and enters the interior of the mixing tank 2 through the air intake pipe 12, so that the mixing tank 2 is used to fully mix the gas, and the bottom of the oxygen generating tank 1 is provided with a connecting pipe 11 through the flow control valve 10, so that the oxygen generated by the oxygen generating tank 1 enters the mixing tank 2 through the connecting pipe 11. The exhaled gas is mixed with the processed exhaled gas by the mixing tank 2, and then discharged through the main discharge check valve 8 on the top of the mixing tank 2, that is, the gas is discharged into the air bag 3 through the oxygen discharge pipe 16. When in use, the check valve is used to only suck out the gas inside the air bag 3, and the mask 18 is also provided with a collection pipe for collecting the exhaled gas. The collection pipe is connected to the purification tank 5 through the air inlet check valve 17, and the exhaled gas can enter the interior of the air inlet check valve 17 through the collection pipe.

[0024] When the oxygen and the treated gas are mixed, the elastic plate 14 is moved to the bottom by the action of the pressure spring 15 and gravity. At this time, the oxygen and the treated gas enter through the connecting pipe 11 and the air inlet pipe 12 respectively. The two gases are fully mixed inside the tank body and exert upward pressure on the elastic plate 14, causing the elastic plate 14 to move upward, squeezing the pressure spring 15 until it is squeezed to a certain state. At this time, the pressure control valve 9 is used for sensing, so that the pressure control valve 9 is opened, and the mixed gas is discharged through the total exhaust check valve 8, and then discharged into the interior of the airbag 3 through the oxygen exhaust pipe 16. At this time, the pressure control valve 9 remains open, and the elastic plate 14 moves downward. When it moves to the bottom, the pressure above the mixing tank 2 is balanced and the pressure control valve 9 is closed. The cycle is repeated to obtain fully mixed oxygen and treated gas. In this process, the mixing time of oxygen and treated gas can be extended, and the temperature of the gas can be reduced to obtain inhalable gas with a suitable temperature, thereby ensuring the user's comfort.

[0025] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An oxygen reaction tank of a chemical oxygen fire-fighting self-rescue breathing apparatus, comprising an oxygen generating tank (1) for generating oxygen and an air bag (3) for storing oxygen, characterized in that: The invention also includes a purification tank (5) for treating exhaled gas, wherein the output end of the purification tank (5) is connected to a mixing tank (2) for mixing the treated gas and oxygen, the mixing tank (2) is connected to the output end of the oxygen generating tank (1), and the output end of the mixing tank (2) is installed inside the air bag (3).

2. The chemical oxygen fire-fighting self-rescue breathing apparatus oxygen reaction tank according to claim 1, characterized in that: A flow control valve (10) is installed between the mixing tank (2) and the oxygen generating tank (1), and a discharge one-way valve (13) is installed between the cleaning tank (5) and the mixing tank (2).

3. The chemical oxygen fire-fighting self-rescue breathing apparatus oxygen reaction tank according to claim 1, characterized in that: An elastic plate (14) is slidably provided inside the mixing tank (2), and a total exhaust one-way valve (8) for achieving gas exhaust is provided in the middle of the elastic plate (14).

4. The chemical oxygen fire-fighting self-rescue breathing apparatus oxygen reaction tank according to claim 3, characterized in that: A pressure spring (15) is fixed above the elastic plate (14), and the other end of the pressure spring (15) is fixed on the mixing tank (2).

5. The chemical oxygen fire-fighting self-rescue breathing apparatus oxygen reaction tank according to claim 1, characterized in that: The oxygen generating tank (1), the purification tank (5) and the mixing tank (2) are fixedly mounted on the internal support frame (4), the internal support frame (4) and the top support frame (7) are fixedly connected, and the top support frame (7) and the air bag (3) are fixedly connected.

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