An underground insulating oxygen respirator

Abstract

The utility model relates to respirator technical field discloses a kind of underground isolated oxygen respirator, comprising: shell, the shell is provided with face guard by first hose, first rigid pipe, first rigid pipe is penetrated in the face guard and is close to the mouth of user, the first rigid pipe is penetrated with second rigid pipe, the second rigid pipe is located in the internal communication of face guard with silica gel suction nozzle, the second rigid pipe is located in the external communication of face guard with second hose, the second hose and the water outlet end on water storage tank are interconnected, the underground isolated oxygen respirator, by pressing limit ring, can make silica gel suction nozzle extend to the mouth of user, while reset spring is compressed by limit ring, user sucks with force, the water in the water storage tank enters the mouth of user, ensure that user can drink water without taking off face guard in some special environment, ensure that user will not lack water, play the role of protection to user.

Description

Technical Field

[0001] This utility model relates to the field of respirator technology, specifically to an underground isolation oxygen respirator. Background Technology

[0002] Positive pressure self-contained breathing apparatus (PPB) is a high-safety respiratory protective equipment used by mine rescue teams during coal mine disaster relief and accident handling. The working principle of a PPB is as follows: The wearer's exhaled air passes through the mask, exhalation hose, and exhalation valve into the cleanroom canister. The absorbent in the cleanroom canister absorbs the carbon dioxide in the air, and the remaining air enters the breathing bag. Meanwhile, compressed oxygen stored in the cylinder enters the breathing bag through a high-pressure hose and pressure reducer, mixing to form oxygen-containing gas. When the wearer inhales, the oxygen-containing gas flows from the breathing bag through the inhalation valve, inhalation hose, and full face mask into the wearer's respiratory organs, completing one breathing cycle. During this process, because both the exhalation and inhalation valves are one-way valves, the airflow is always unidirectionally circulating.

[0003] Existing self-contained positive pressure oxygen respirators require users to remove their masks to drink water. In some special environments, it is impossible to remove the mask, and users have to endure hunger and thirst while working, which affects their health.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing self-contained positive pressure oxygen respirators. Utility Model Content

[0005] The purpose of this invention is to provide an underground isolation oxygen breathing apparatus to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a downhole self-contained oxygen breathing apparatus, comprising: An outer casing, wherein a face mask is provided on the outer casing via a first flexible tube; A first rigid tube is inserted through the mask near the user's mouth. A second rigid tube is inserted through the first rigid tube. The second rigid tube is located inside the mask and connected to a silicone suction nozzle. The second rigid tube is located outside the mask and connected to a second flexible tube. The second flexible tube is connected to the water outlet on the water tank. A limiting ring is provided on the second rigid tube outside the mask. A positioning block is installed on the second rigid tube, and one side of the positioning block abuts against the inner side of the mask. A return spring is nested in the second rigid tube, and the return spring is located between the first rigid tube and the limiting ring.

[0007] Preferably, a rubber sealing sleeve is fixed to the inner side of the first rigid tube, and the inner side of the rubber sealing sleeve abuts against the outer side of the second rigid tube.

[0008] Preferably, a silicone spacer is fixed to the outer side of the end of the second rigid tube inside the mask.

[0009] Preferably, the outer wall of the housing is fixed with a clip, and the inner side of the clip abuts against the outer side of the second hose.

[0010] Preferably, the limiting ring and the first rigid tube have the same diameter, and the diameter of both the limiting ring and the first rigid tube is larger than the diameter of the return spring.

[0011] Preferably, mounting plates are fixed to both sides of the water storage tank near the outer shell, and the mounting plates are fixed to the outside of the outer shell by bolts.

[0012] Preferably, the water storage tank is provided with an inlet pipe and an outlet pipe at the top and bottom, respectively, and the ends of the inlet pipe and the outlet pipe are threaded with sealing caps.

[0013] Preferably, a transparent liquid level observation window is provided on one side of the water storage tank, and transparent acrylic is fixed inside the transparent liquid level observation window.

[0014] Preferably, the top two sides of the outer casing are provided with shoulder straps, and the bottom two sides of the outer casing are provided with waist belts.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the underground isolation oxygen breathing apparatus allows the silicone mouthpiece to be inserted into the user's mouth by pressing the limiting ring. At the same time, the return spring is compressed by the limiting ring. When the user inhales forcefully, the water inside the water tank enters the user's mouth, ensuring that the user can drink water without removing the mask in some special environments, ensuring that the user will not be dehydrated, and playing a protective role for the user. When the limiting ring is released, the second rigid tube and the silicone nozzle are reset under the elastic force of the return spring, ensuring that the silicone nozzle will not touch the user's mouth and avoiding discomfort caused by the user's mouth being in constant contact with the silicone nozzle. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of the present invention; Figure 2 This utility model Figure 1 Schematic diagram of the external structure of the face shield; Figure 3 This utility model Figure 1 Schematic diagram of the internal structure of the face mask; Figure 4 This is a schematic cross-sectional view of the second flexible tube of this utility model; Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the card structure of this utility model.

[0017] In the diagram: 1. Outer shell; 2. First flexible tube; 3. Face mask; 4. First rigid tube; 5. Second rigid tube; 6. Silicone suction nozzle; 7. Limiting ring; 8. Return spring; 9. Second flexible tube; 10. Water tank; 11. Rubber sealing sleeve; 12. Silicone spacer; 13. Clip; 14. Shoulder strap; 15. Waist belt; 16. Positioning block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-6 This utility model provides a technical solution: an underground isolation oxygen respirator, comprising: The outer shell 1 has a face mask 3 installed on it through the first flexible tube 2, shoulder straps 14 are installed on both sides of the top of the outer shell 1, and waist belts 15 are installed on both sides of the bottom of the outer shell 1. A first rigid tube 4 is fixedly inserted through one side of the mask 3 near the user's mouth. A second rigid tube 5 slides through the inside of the first rigid tube 4. One end of the second rigid tube 5 is located inside the mask 3 and is fixedly connected to a silicone suction nozzle 6. The other end of the second rigid tube 5 is located outside the mask 3 and is fixedly connected to a second flexible tube 9. A water tank 10 is provided on one side of the outer shell 1. The second flexible tube 9 is fixedly connected to the water outlet on the water tank 10. A manual valve is provided on the water outlet. A limiting ring 7 is fixed on the outer side of the end of the second rigid tube 5 outside the mask 3. A positioning block 16 is fixed on the outer wall of the second rigid tube 5. One side of the positioning block 16 abuts against the inner side of the mask 3. A return spring 8 is nested on the outer side of the second rigid tube 5. The return spring 8 is located between the first rigid tube 4 and the limiting ring 7.

[0020] In this example, a rubber sealing sleeve 11 is fixed to the inner side of the first rigid tube 4. The inner side of the rubber sealing sleeve 11 abuts against the outer side of the second rigid tube 5. The setting of the rubber sealing sleeve 11 increases the sealing performance at the connection between the first rigid tube 4 and the second rigid tube 5.

[0021] In this example, the distance between the limiting ring 7 and the first rigid tube 4 is less than the distance from the end of the second rigid tube 5 to the user's mouth, ensuring that the second rigid tube 5 will not touch the user's mouth when it moves.

[0022] In this example, a silicone spacer 12 is fixed to the outer side of the end of the second rigid tube 5 inside the mask 3. The silicone spacer 12 provides a barrier between the user's mouth and the second rigid tube 5, preventing the user from biting the second rigid tube 5 and protecting the user's teeth.

[0023] In this example, the outer wall of the outer casing 1 is fixed with a clip 13. The inner side of the clip 13 abuts against the outer side of the second hose 9. The clip 13 is set to limit the second hose 9, preventing the second hose 9 from moving at will and affecting the use of the respirator.

[0024] In this example, the limiting ring 7 and the first rigid tube 4 have the same diameter. The diameters of both the limiting ring 7 and the first rigid tube 4 are larger than the diameter of the return spring 8, so that when the limiting ring 7 moves, it can compress the return spring 8.

[0025] In this example, mounting plates are fixed to both sides of the water tank 10 near the outer shell 1. The mounting plates are fixed to the outside of the outer shell 1 by bolts, so that the outer shell 1 and the water tank 10 can be disassembled and installed.

[0026] In this example, the water storage tank 10 is provided with an inlet pipe and an outlet pipe at the top and bottom, respectively. The ends of the inlet pipe and the outlet pipe are threaded with sealing caps. Water can be added to the inside of the water storage tank 10 through the inlet pipe, and water can be discharged from the inside of the water storage tank 10 through the outlet pipe.

[0027] In this example, a transparent liquid level observation window is provided on one side of the water storage tank 10. A transparent acrylic is fixed inside the transparent liquid level observation window, and the internal volume of the water storage tank 10 can be seen through the transparent liquid level observation window.

[0028] Working principle: When using this downhole self-contained breathing apparatus, first open the water outlet through the manual valve, then press the limiting ring 7. The limiting ring 7 drives the second rigid tube 5, the silicone nozzle 6, and the silicone spacer 12 to move toward the user's mouth. At the same time, the return spring 8 is compressed by the limiting ring 7. When the silicone nozzle 6 is inserted into the user's mouth, the user sucks hard, and the water inside the water tank 10 enters the user's mouth through the water outlet, the second hose 9, the second rigid tube 5, and the silicone nozzle 6, ensuring that the user can drink water without removing the mask 3 in some special environments. When the limiting ring 7 is released, the second rigid tube 5 and the silicone suction nozzle 6 are reset under the elastic force of the return spring 8, ensuring that the silicone suction nozzle 6 will not touch the user's mouth, thus avoiding discomfort caused by the user's mouth being in constant contact with the silicone suction nozzle 6.

[0029] The underground self-contained breathing apparatus (SCBA) is an existing product. Its working principle is as follows: The wearer's exhaled air passes through the mask, exhalation hose, and exhalation valve into the cleanroom canister. The absorbent in the cleanroom canister absorbs the carbon dioxide in the air, and the remaining air enters the breathing bag. Meanwhile, compressed oxygen stored in the cylinder enters the breathing bag through a high-pressure hose and pressure reducer, mixing to form oxygen-containing gas. When the wearer inhales, the oxygen-containing gas flows from the breathing bag through the inhalation valve, inhalation hose, and full face mask into the wearer's respiratory organs, completing one breathing cycle. During this process, because both the exhalation and inhalation valves are one-way valves, the breathing airflow is always unidirectionally circulated.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A well-isolated oxygen breathing apparatus, characterized in that, include: The outer casing (1) is provided with a face mask (3) via a first flexible tube (2); A first rigid tube (4) is inserted through the mask (3) near the user's mouth. A second rigid tube (5) is inserted through the first rigid tube (4). The second rigid tube (5) is located inside the mask (3) and connected to a silicone suction nozzle (6). The second rigid tube (5) is located outside the mask (3) and connected to a second flexible tube (9). The second flexible tube (9) is connected to the water outlet on the water tank (10). A limiting ring (7) is provided on the outside of the mask (3) of the second rigid tube (5). A positioning block (16) is installed on the second rigid tube (5). One side of the positioning block (16) abuts against the inside of the mask (3). A return spring (8) is nested in the second rigid tube (5). The return spring (8) is located between the first rigid tube (4) and the limiting ring (7).

2. The downhole self-contained oxygen breathing apparatus according to claim 1, characterized in that: A rubber sealing sleeve (11) is fixed on the inner side of the first rigid tube (4), and the inner side of the rubber sealing sleeve (11) abuts against the outer side of the second rigid tube (5).

3. The downhole self-contained oxygen breathing apparatus according to claim 1, characterized in that: A silicone septum (12) is fixed to the outer side of the end of the second rigid tube (5) inside the mask (3).

4. The downhole self-contained oxygen breathing apparatus according to claim 1, characterized in that: The outer wall of the outer casing (1) is fixed with a clip (13), and the inner side of the clip (13) abuts against the outer side of the second hose (9).

5. A downhole self-contained oxygen breathing apparatus according to claim 1, characterized in that: The limiting ring (7) and the first rigid tube (4) have the same diameter, and the diameters of the limiting ring (7) and the first rigid tube (4) are both greater than the diameter of the return spring (8).

6. The downhole self-contained oxygen breathing apparatus according to claim 1, characterized in that: Mounting plates are fixed on both sides of the water storage tank (10) near the outer shell (1), and the mounting plates are fixed to the outside of the outer shell (1) by bolts.

7. A downhole self-contained oxygen breathing apparatus according to claim 1, characterized in that: The water storage tank (10) is provided with an inlet pipe and an outlet pipe at the top and bottom respectively, and the ends of the inlet pipe and the outlet pipe are threaded with sealing caps.

8. A downhole self-contained oxygen breathing apparatus according to claim 1, characterized in that: A transparent liquid level observation window is provided on one side of the water storage tank (10), and transparent acrylic is fixed inside the transparent liquid level observation window.

9. A downhole self-contained oxygen breathing apparatus according to claim 1, characterized in that: The top two sides of the outer shell (1) are provided with shoulder straps (14), and the bottom two sides of the outer shell (1) are provided with waist belts (15).

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