Adjustable breathing oxygen supply device

Abstract

The utility model relates to the technical field of oxygen supply devices, and discloses an adjustable breathing oxygen supply device which comprises a knapsack, an oxygen bottle is installed in the knapsack, a pressure reducer is installed on an opening of the oxygen bottle, the output air pressure of the pressure reducer is adjustable, an air outlet of the pressure reducer is communicated with an air bag, and the air bag is communicated with an air outlet of the oxygen bottle. The other air inlet of the air bag is connected with a purification tank, the air inlet of the purification tank is connected with an air pipe, the air outlet of the air bag is connected with a cooler, the air outlet of the cooler is communicated with the other air pipe, the tail ends of the two air pipes are jointly connected with a breathing tee joint, and the other opening of the breathing tee joint is connected with a mask. The device solves the problem that when the activity state of a user or the environment is changed, quantitative oxygen supply cannot meet the use requirement or causes waste easily, and the oxygen utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen supply devices, and more specifically, to an adjustable breathing oxygen supply device. Background Art

[0002] The breathing oxygen supply device is isolated from the outside world, forms an internal cycle with the human respiratory system, provides oxygen by a high-pressure oxygen cylinder, and stores the inhaled and exhaled gases by an airbag. It is a respiratory protection product and is widely used in environments such as petroleum, chemical industry, metallurgy, and laboratories for use by specially trained people when wearing in toxic and harmful gas environments for emergency rescue, accident handling, rescue, or operation.

[0003] The Chinese invention patent with the application number 202310340985.1 discloses a portable respirator with an oxygen adjustment function. An adjustment mechanism is provided between the oxygen cylinder and the mixing device. By adjusting the position of the movable plug with a screw rod, the opening degree of the oxygen cylinder mouth is changed, so as to adjust the oxygen supply amount to adapt to different usage situations. However, when the adjustment stops, the oxygen supply amount is fixed, but the oxygen consumption of the user is different in different activity situations. The fixed supply is likely to cause insufficient oxygen supply or waste, resulting in low utilization rate of the oxygen in the oxygen cylinder. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an adjustable breathing oxygen supply device.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An adjustable breathing oxygen supply device includes a backpack, an oxygen cylinder is installed in the backpack, a pressure reducer is installed on the opening of the oxygen cylinder, the output air pressure of the pressure reducer is adjustable, the air outlet of the pressure reducer is communicated with an airbag, another air inlet of the airbag is connected with a purification tank, the air inlet of the purification tank is connected with a trachea, the air outlet of the airbag is connected with a cooler, the air outlet of the cooler is communicated with another trachea, the ends of the two tracheas are jointly connected with a breathing three-way, and another opening of the breathing three-way is connected with a mask.

[0007] The utility model is further arranged as follows: The pressure reducer includes a valve body I, the valve body I is columnar, an air outlet pipe is opened on the side wall of the valve body I, the air outlet pipe is communicated with the airbag, an air inlet pipe is opened at one end of the valve body I, the air inlet pipe is communicated with the mouth of the oxygen cylinder, a valve core is arranged in the valve body I, the valve core is coaxially arranged with the air inlet pipe, one end of the valve core can be sealed with the air inlet pipe, the other end of the valve core is slidably connected with an adjusting ring, the outer wall of the adjusting ring is threadedly connected with the valve body I, a pre-tightening spring is installed at the end of the adjusting ring extending into the valve body I, and the other end of the pre-tightening spring is connected with the valve core.

[0008] The present utility model is further configured such that: the pressure reducer is disposed close to the side wall of the backpack, an opening is correspondingly provided on the side wall of the backpack, a turntable is coaxially provided at one end of the adjusting ring away from the valve body 1, and the side wall of the turntable extends out of the opening.

[0009] The present utility model is further configured such that: one end of the adjusting ring extending into the valve body 1 is sealingly connected to the inner wall of the valve body 1.

[0010] The present utility model is further configured such that: the breathing three-way includes a three-way main body, one end of the three-way main body is communicated with the mask, the other two openings of the three-way main body are respectively an inhalation port and an exhalation port, the inhalation port of the three-way main body is sequentially communicated with an inhalation valve and an inhalation adjusting ring, the air outlet of the inhalation valve faces the three-way main body, the exhalation port of the three-way main body is sequentially communicated with an exhalation adjusting ring and an exhalation valve, the air inlet of the exhalation valve faces the three-way main body, and the inhalation adjusting ring and the exhalation valve are respectively communicated with two air tubes.

[0011] The present utility model is further configured such that: the inhalation valve includes a valve body 2, the valve body 2 is columnar, one end of the valve body 2 is sealingly connected to the three-way main body, an installation bracket is provided at the air outlet of the valve body 2, a return spring is fixed on the installation bracket, the free end of the return spring points to the air inlet of the inhalation valve and is connected with a sealing ball, and the sealing ball can be sealed with the air inlet of the inhalation valve.

[0012] The present utility model is further configured such that: the inhalation adjusting ring includes an air port, the air port is threadedly connected to the air inlet of the inhalation valve, the sealing ball can be sealed with the air port, and a rotating ring is provided at one end of the air port extending out of the inhalation valve, and the rotating ring is disposed between the air tube and the inhalation valve.

[0013] The present utility model is further configured such that: the exhalation adjusting ring has the same structure as the inhalation adjusting ring, and the exhalation valve has the same structure as the inhalation valve.

[0014] The advantages of the present utility model are:

[0015] 1. It is communicated between the bottle mouth of the oxygen cylinder and the airbag through a pressure reducer. The valve core of the pressure reducer is pressed towards the intake pipe under the action of the pre-tightening spring. When the acting force of the air pressure in the oxygen cylinder on the valve core is greater than the combined acting force of the air pressure in the airbag and the pre-tightening spring on the valve core, the valve core is opened, and the oxygen in the oxygen cylinder enters the airbag to be mixed. The pre-tightening force of the pre-tightening spring is related to the length of the adjusting ring extending into the valve body 1. Rotating the turntable can adjust the pre-tightening force, thereby adjusting the air output of the oxygen cylinder. The turntable extends out of the backpack, and it can be adjusted at any time during use, which is convenient to adjust the air output in a timely manner according to the environment, the needs of the user, and the remaining air volume of the oxygen cylinder itself, so as to ensure the user experience;

[0016] 2. Both the air inlet and the air outlet of the breathing three-way are connected with air valves and adjusting devices. When inhaling, the inhalation valve opens and the exhalation valve closes. The mixed gas in the device enters the mask through the inhalation valve and is inhaled by the user. When exhaling, the exhalation valve opens and the inhalation valve closes. The gas exhaled by the user enters the purification tank through the exhalation valve and is purified, thus realizing the diversion of exhaled and inhaled gases, ensuring the oxygen content in the gas inhaled by the user, and thus ensuring the utilization rate of oxygen.

[0017] 3. Adjusting devices are provided on both the exhalation valve and the inhalation valve. The adjusting device is arranged on the side of the air inlet of the valve body. By rotating the adjusting device and changing the length of the air port of the adjusting device extending into the valve body, that is, changing the distance between the air port and the sealing ball, the opening degree of the valve body can be changed, thereby adjusting the air flow rate passing through the valve body, facilitating timely adjustment of the air supply according to the actual needs of the user, reducing the waste of oxygen, and prolonging the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0019] Figure 2 is a schematic internal structure diagram of the present utility model;

[0020] Figure 3 is a sectional view taken along Figure 1 the A - A line shown;

[0021] Figure 4 is a schematic structural diagram of the breathing three-way of the present utility model;

[0022] Figure 5 is a schematic exploded structural diagram of the breathing three-way of the present utility model;

[0023] Figure 6 is a sectional view taken along Figure 4 the B - B line shown;

[0024] In the figure: 1. Backpack; 11. Opening; 2. Purification tank; 3. Airbag; 4. Oxygen cylinder; 41. Bottle mouth; 5. Pressure reducer; 51. Valve body one; 52. Inlet pipe; 53. Outlet pipe; 54. Valve core; 55. Pre-tightening spring; 56. Adjusting ring; 57. Turntable; 6. Cooler; 7. Air pipe; 8. Breathing three-way; 81. Three-way main body; 82. Exhalation adjusting ring; 83. Exhalation valve; 84. Inhalation valve; 841. Valve body two; 842. Mounting frame; 843. Return spring; 844. Sealing ball; 85. Inhalation adjusting ring; 851. Air port; 852. Rotating ring; 9. Mask. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will describe the present utility model in detail with reference to the drawings and in combination with the embodiments.

[0026] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0027] In the present utility model, unless otherwise stated, the directions such as "upper, lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually in the left and right shown in the drawings; "inside, outside" refer to the inside and outside relative to the contour of each component itself, but the above directional terms are not used to limit the present utility model.

[0028] Please refer to Figures 1-6 , the present utility model provides the following technical solutions:

[0029] An adjustable respiratory oxygen supply device, comprising a backpack 1, an oxygen cylinder 4 is installed in the backpack 1, a pressure reducer 5 is installed on the opening of the oxygen cylinder 4, the output air pressure of the pressure reducer 5 is adjustable, the air outlet of the pressure reducer 5 is communicated with an airbag 3, another air inlet of the airbag 3 is connected with a purification tank 2, the air inlet of the purification tank 2 is connected with an air pipe 7, the air outlet of the airbag 3 is connected with a cooler 6, the air outlet of the cooler 6 is communicated with another air pipe 7, the ends of the two air pipes 7 are jointly connected with a respiratory three-way 8, and another opening of the respiratory three-way 8 is connected with a mask 9;

[0030] During use, the gas exhaled by the user enters the purification tank 2 through the respiratory three-way 8 and along the air pipe 7, the purification tank 2 removes carbon dioxide in the gas, and the purified gas enters the airbag 3; the high-pressure oxygen stored in the oxygen cylinder 4 enters the airbag 3 after being depressurized by the pressure reducer 5, so that the gas in the airbag 3 is mixed into a gas suitable for breathing, the gas in the airbag 3 enters the cooler 6 to be cooled, and when the user inhales, the gas in the cooler 6 enters the mask 9 through the air pipe 7 and the respiratory three-way 8 and is inhaled, realizing respiratory cyclic oxygen supply.

[0031] The pressure reducer 5 comprises a valve body 51, which is columnar. An air outlet pipe 53 is provided on the side wall of the valve body 51, and the air outlet pipe 53 is connected to the air bag 3. An air inlet pipe 52 is provided at one end of the valve body 51, and the air inlet pipe 52 is connected to the bottle mouth 41 of the oxygen cylinder 4. A valve core 54 is provided in the valve body 51, and the valve core 54 is coaxially arranged with the air inlet pipe 52. One end of the valve core 54 can be sealed with the air inlet pipe 52. An adjusting ring 56 is slidably connected to the other end of the valve core 54. The adjusting ring 56 is coaxially arranged with the valve core 54. The valve core 54 penetrates the adjusting ring 56 and extends out of the valve body 51. The outer ring wall of the adjusting ring 56 is threadedly connected to the valve body 51. A preload spring 55 is installed at one end of the adjusting ring 56 extending into the valve body 51, and the other end of the preload spring 55 is connected to the valve core 54.

[0032] When the adjusting ring 56 is rotated, the length of the adjusting ring 56 extending into the valve body 511 can be changed, that is, the preload spring 55 can be pushed to change its preload force, thereby changing the force acting on the valve core 54, that is, changing the force required for the gas in the oxygen cylinder 4 to push the valve core 54 to open. When in use, the preload force is adjusted according to the change of the oxygen residue in the oxygen cylinder 4 and the user's usage requirements, that is, the gas output of the oxygen cylinder 4 can be changed to adapt to the oxygen concentration in the airbag 3 and adapt to different usage requirements, thereby ensuring the user experience and saving oxygen usage, thereby extending the overall use time of the device.

[0033] Furthermore, the pressure reducer 5 is arranged close to the side wall of the backpack 1, and an opening 11 is correspondingly arranged on the side wall of the backpack 1. A turntable 57 is coaxially arranged on the end of the adjustment ring 56 away from the valve body 51, and the side wall of the turntable 57 extends out of the opening 11. The outlet air pressure of the pressure reducer 5 can be adjusted without opening the backpack 1, which is convenient and quick.

[0034] A sealing ring is installed between the valve core 54 and the adjusting ring 56. The side wall of one end of the adjusting ring 56 extending into the valve body 51 is sealed and connected to the inner wall of the valve body 51, thereby preventing gas leakage in the pressure reducer 5.

[0035] The breathing three-way joint 8 includes a three-way main body 81. One end of the three-way main body 81 is connected to the mask 9. The other two openings of the three-way main body 81 are an inhalation port and an exhalation port respectively. The inhalation port of the three-way main body 81 is successively connected with an inhalation valve 84 and an inhalation adjustment ring 85. The air outlet of the inhalation valve 84 faces the three-way main body 81. The exhalation port of the three-way main body 81 is successively connected with an exhalation adjustment ring 82 and an exhalation valve 83. The air inlet of the exhalation valve 83 faces the three-way main body 81. The inhalation adjustment ring 85 and the exhalation valve 83 are respectively connected to two tracheas 7. Both the inhalation valve 84 and the exhalation valve 83 are one-way valves. When inhaling, the inhalation valve 84 opens and the exhalation valve 83 closes, and the user inhales oxygen-rich gas from the backpack 1. When exhaling, the exhalation valve 83 opens and the inhalation valve 84 closes, and the user exhales carbon dioxide-rich gas into the backpack 1, thereby realizing the separation of exhaled and inhaled gases, ensuring the oxygen content of the inhaled gas, ensuring the utilization rate of oxygen, and prolonging the service time of the oxygen cylinder 4.

[0036] The inhalation valve 84 includes a valve body two 841. The valve body two 841 is columnar. One end of the valve body two 841 is hermetically connected to the three-way main body 81. An installation frame 842 is arranged at the air outlet of the valve body two 841. A return spring 843 is fixed on the installation frame 842. The free end of the return spring 843 points to the air inlet of the inhalation valve 84 and is connected with a sealing ball 844. The sealing ball 844 can be sealed with the air inlet of the inhalation valve 84 to form a one-way valve, which opens to supply oxygen when inhaling and closes to prevent carbon dioxide from flowing back into the intake end when exhaling.

[0037] The inhalation adjustment ring 85 includes an air port 851. The air port 851 is threadedly connected to the air inlet of the inhalation valve 84. The sealing ball 844 can be sealed with the air port 851. One end of the air port 851 extending outside the inhalation valve 84 is provided with a rotating ring 852. The rotating ring 852 is arranged between the trachea 7 and the inhalation valve 84. By controlling the rotating ring 852, the length of the air port 852 extending into the inhalation valve 84 can be adjusted, thereby changing the opening degree of the inhalation valve 84 and achieving the purpose of controlling the flow rate of the inhalation valve 84.

[0038] The exhalation adjustment ring 82 has the same structure as the inhalation adjustment ring 85, and the exhalation valve 83 has the same structure as the inhalation valve 84.

[0039] That is, it can adaptively adjust the exhalation adjustment ring 82 and the inhalation adjustment ring 95 according to the amount of gas inhaled and exhaled by the user each time, so that the amount of gas required by the user is adapted to the amount of gas flowing through the exhalation valve 83 and the inhalation valve 84, without causing waste of oxygen and prolonging the overall service time of the device.

[0040] Specifically, between the mouth 41 of the oxygen cylinder 4 and the airbag 3 is connected through a pressure reducer 5. The valve core 54 of the pressure reducer 5 is pressed towards the intake pipe 52 under the action of the pre-tightening spring 55. When the acting force of the air pressure in the oxygen cylinder 4 on the valve core 54 is greater than the combined acting force of the air pressure in the airbag 3 and the pre-tightening spring 55 on the valve core 54, the valve core 54 is opened, and the oxygen in the oxygen cylinder 4 enters the airbag 3 and is mixed. The pre-tightening force of the pre-tightening spring 55 is related to the length of the adjusting ring 56 extending into the valve body one 51. By rotating the turntable 57, the pre-tightening force can be adjusted, thereby adjusting the air output of the oxygen cylinder 4. The turntable 57 extends out of the backpack 1 and can be adjusted at any time during use, facilitating timely adjustment of the air output according to the environment, the needs of the user, and the remaining air volume of the oxygen cylinder 4 itself, so as to ensure the user experience;

[0041] Both the intake port and the exhalation port of the breathing three-way 8 are connected with air valves and adjusting devices. When inhaling, the inhalation valve 84 is opened and the exhalation valve 83 is closed. The mixed gas in the device enters the mask 9 through the inhalation valve 84 and is inhaled by the user. When exhaling, the exhalation valve 83 is opened and the inhalation valve 84 is closed. The gas exhaled by the user enters the purification tank 2 through the exhalation valve 83 and is purified, thus realizing the diversion of inhaled and exhaled gases, ensuring the oxygen content in the gas inhaled by the user, and thus ensuring the utilization rate of oxygen;

[0042] Adjusting devices are provided on both the exhalation valve 83 and the inhalation valve 84. The adjusting devices are arranged on the side of the intake port of the valve body. Taking the exhalation valve 84 as an example, by rotating the rotating ring 852 and changing the length of the air port 851 extending into the valve body two 841, that is, changing the distance between the air port 851 and the sealing ball 844, the opening degree of the exhalation valve 84 can be changed, thereby adjusting the air flow rate through the exhalation valve 84, facilitating timely adjustment of the air supply according to the actual needs of the user, reducing the waste of oxygen, and prolonging the service life of the device.

[0043] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar counterparts, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here.

[0046] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and changes can be made to the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An adjustable breathing oxygen supply device, comprising a backpack (1), characterized in that: An oxygen cylinder (4) is installed in the backpack (1), a pressure reducer (5) is installed on the opening of the oxygen cylinder (4), the output air pressure of the pressure reducer (5) is adjustable, the air outlet of the pressure reducer (5) is connected to an air bag (3), the other air inlet of the air bag (3) is connected to a purification tank (2), the air inlet of the purification tank (2) is connected to an air pipe (7), the air outlet of the air bag (3) is connected to a cooler (6), the air outlet of the cooler (6) is connected to another air pipe (7), the ends of the two air pipes (7) are commonly connected to a breathing tee (8), and the other opening of the breathing tee (8) is connected to a mask (9).

2. An adjustable breathing oxygen supply device according to claim 1, characterized in that: The pressure reducer (5) comprises a valve body (51) which is columnar, an air outlet pipe (53) is provided on the side wall of the valve body (51), the air outlet pipe (53) is connected to the air bag (3), an air inlet pipe (52) is provided at one end of the valve body (51), the air inlet pipe (52) is connected to the bottle mouth (41) of the oxygen cylinder (4), a valve core (54) is provided in the valve body (51), and the valve core (54) is provided in the valve body (51). 4) is coaxially arranged with the intake pipe (52), one end of the valve core (54) can be sealed with the intake pipe (52), the other end of the valve core (54) is slidably connected with an adjusting ring (56), the outer wall of the adjusting ring (56) is threadedly connected with the valve body (51), one end of the adjusting ring (56) extending into the valve body (51) is installed with a preload spring (55), and the other end of the preload spring (55) is connected to the valve core (54).

3. An adjustable breathing oxygen supply device according to claim 2, characterized in that: The pressure reducer (5) is arranged close to the side wall of the backpack (1), and an opening (11) is correspondingly arranged on the side wall of the backpack (1). A rotating disk (57) is coaxially arranged at one end of the adjusting ring (56) away from the valve body (51), and the side wall of the rotating disk (57) extends out of the opening (11).

4. An adjustable breathing oxygen supply device according to claim 3, characterized in that: One end of the adjusting ring (56) extending into the valve body (51) is sealedly connected to the inner wall of the valve body (51).

5. The adjustable breathing oxygen supply device according to claim 1, characterized in that: The breathing tee (8) comprises a tee body (81), one end of which is connected to the mask (9), and the other two openings of the tee body (81) are respectively an inhalation port and an exhalation port, the inhalation port of the tee body (81) is connected in sequence to an inhalation valve (84) and an inhalation adjustment ring (85), the air outlet of the inhalation valve (84) faces the tee body (81), the exhalation port of the tee body (81) is connected in sequence to an exhalation adjustment ring (82) and an exhalation valve (83), the air inlet of the exhalation valve (83) faces the tee body (81), and the inhalation adjustment ring (85) and the exhalation valve (83) are respectively connected to two tracheas (7).

6. An adjustable breathing oxygen supply device according to claim 5, characterized in that: The air intake valve (84) includes a second valve body (841), the second valve body (841) is columnar, one end of the second valve body (841) is sealed and connected to the three-way main body (81), a mounting frame (842) is provided at the air outlet of the second valve body (841), a return spring (843) is fixed on the mounting frame (842), the free end of the return spring (843) points to the air inlet of the air intake valve (84) and is connected to a sealing ball (844), and the sealing ball (844) can be sealed with the air inlet of the air intake valve (84).

7. An adjustable breathing oxygen supply device according to claim 6, characterized in that: The air intake adjustment ring (85) includes an air port (851), and the air port (851) is threadedly connected to the air inlet of the air intake valve (84). The sealing ball (844) can be sealed with the air port (851). A rotating ring (852) is provided at one end of the air port (851) extending outside the air intake valve (84). The rotating ring (852) is arranged between the air pipe (7) and the air intake valve (84).

8. An adjustable breathing oxygen supply device according to claim 7, characterized in that: The exhalation regulating ring (82) and the inhalation regulating ring (85) have the same structure, and the exhalation valve (83) and the inhalation valve (84) have the same structure.

Images