Lung type breather valve

Abstract

The invention relates to the technical field of medical equipment, in particular to a lung type breather valve. A breathing cavity is formed in a shell, an air outlet nozzle is arranged on the upper side of the shell, an air outlet pipe is arranged on the lower side of the shell, an air outlet rod is installed in the breathing cavity, a first air hole is formed in the upper end of the air outlet rod, and a lower transition plate is arranged at the upper end of the air outlet rod; a control diaphragm is arranged on the upper side of the lower transition plate; a second air hole is formed in the bottom of the air outlet cavity; a third air hole communicated with the air outlet nozzle is formed in the wall of the air outlet cavity; an upper transition plate is arranged on the upper side of the control diaphragm; an air outlet gap is formed between the lower side of the lower transition plate and the upper end of the air outlet rod, the lower transition plate is provided with a fifth air hole for communicating the air outlet gap with the control cavity, and the upper side of the upper transition plate is provided with an exhaust groove communicated with the side face. Oxygen is supplied automatically according to the breathing rhythm, and the oxygen supply opportunity and the oxygen supply amount can be mastered accurately.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and specifically to a lung-type breathing valve. Background Technology

[0002] In the field of medical oxygen therapy, oxygen is a crucial resource for maintaining patients' vital signs, and its rational utilization and precise control directly affect treatment efficacy and resource conservation. Currently, the most commonly used oxygen supply method in clinical practice is direct current (DC) oxygen supply, which involves continuously outputting oxygen through valves in the oxygen system. After being regulated by devices such as pressure reducers and flow meters, oxygen is delivered to the patient at a constant flow rate (e.g., nasal cannulas, face masks). While this oxygen supply mode can meet basic oxygen needs, it has significant drawbacks in practical applications. For example, the human respiratory process is cyclical, requiring oxygen only during inhalation and not during exhalation. In DC oxygen supply mode, oxygen continues to be output during exhalation, with excess oxygen being directly released into the environment, resulting in 30%-60% of oxygen not being effectively utilized. This waste significantly increases medical costs, especially for patients undergoing long-term oxygen therapy (such as those with chronic obstructive pulmonary disease or pulmonary fibrosis) or in high-flow oxygen therapy scenarios. Summary of the Invention

[0003] The purpose of this invention is to provide a lung-type breathing valve that solves the problem that in the prior art, most traditional breathing valves use direct current oxygen supply, which cannot adjust the oxygen supply according to the breathing rhythm, and a large amount of oxygen leaks during the exhalation phase or non-inhalation periods.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A lung-type breathing valve includes a housing, within which a breathing chamber is disposed. An air outlet connected to the breathing chamber is disposed on the upper side of the housing, and an air outlet pipe is vertically disposed on the lower side of the housing. An air outlet rod is installed within the breathing chamber, and a first air hole connected to the air outlet pipe is disposed at the upper end of the air outlet rod. A lower transition plate is disposed at the upper end of the air outlet rod, and an air outlet chamber is recessed in the middle of the upper part of the lower transition plate. A control diaphragm for closing the upper opening of the air outlet chamber is disposed on the upper side of the lower transition plate. A second air hole connected to the first air hole is disposed at the bottom of the air outlet chamber. The wall is provided with a third air hole that communicates with the air outlet. An upper transition plate is provided on the upper side of the control diaphragm. A control cavity is provided in the lower recess of the middle part of the upper transition plate. A fourth air hole that communicates with the control cavity is provided in the middle of the upper part of the upper transition plate. A breathing diaphragm is provided on the upper side of the upper transition plate. The edge of the breathing diaphragm is fixed to the upper transition plate. An air outlet gap is provided between the middle of the lower side of the lower transition plate and the middle of the upper end of the air outlet rod. A fifth air hole is provided on the lower transition plate to connect the air outlet gap and the control cavity. An exhaust groove that communicates with the side is provided on the upper side of the upper transition plate.

[0005] A further technical solution is that the air outlet rod includes a rod body and a plate body. The rod body is placed inside the air outlet pipe, with its upper end positioned above the air outlet pipe. The plate body is located at the upper end of the rod body. The upper end of the first air hole is connected to the middle of the upper side of the plate body, and its lower end is located on the side of the lower end of the rod body. The diameter of the lower part of the rod body is smaller than the inner diameter of the air outlet pipe.

[0006] A further technical solution is that the lower side of the upper transition plate is recessed at the edge of the control cavity, and the wall of the insertion hole is connected to the control cavity through the sixth air hole. The lower transition plate is provided with an insertion block at the position corresponding to the insertion hole. The upper end of the fifth air hole is placed on the upper end of the insertion block and is connected to the sixth air hole. The lower end of the fifth air hole is placed on the lower side of the lower transition plate and is connected to the air outlet gap.

[0007] A further technical solution is that a first air guide block is vertically arranged on the side of the lower transition plate, and a seventh air hole is arranged inside the first air guide block. The upper end of the seventh air hole is located at the upper end of the first air guide block and is connected to the air outlet, and the lower end is connected to the third air hole. A ventilation groove is arranged at the bottom of the air outlet cavity, and the ventilation groove is connected to the third air hole on the cavity wall of the air outlet cavity.

[0008] A further technical solution is that a second air guide block is provided at the top of the breathing chamber at the position corresponding to the first air guide block, the lower end of the second air guide block is inserted into the upper end of the seventh air hole, and an eighth air hole is provided inside the second air guide block for connecting the seventh air hole and the air outlet.

[0009] A further technical solution is that a ninth air hole, which is connected to the seventh air hole, is provided on the outer side of the first air guide block.

[0010] A further technical solution is that a support block is provided on the bottom of the control cavity near the fourth air hole.

[0011] A further technical solution is that the bottom of the air outlet chamber is surrounded by a second air hole protrusion to form a first convex ring, the height of which is less than the height of the air outlet chamber; and the upper side of the upper transition plate is surrounded by a fourth air hole protrusion to form a second convex ring.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When using the lung-type breathing valve of this application, the outlet pipe is aligned and connected with the oxygen supply pipeline interface of the oxygen system, and oxygen enters the outlet pipe. After the oxygen enters the outlet pipe, it passes through the first air hole, enters the outlet chamber along the second air hole, and enters the control chamber along the fifth air hole. When the user is not inhaling through the outlet, the breathing diaphragm adheres to the upper side of the transition plate, sealing the fourth air hole. At this time, the oxygen entering the control chamber cannot be discharged, and the oxygen gradually increases. The oxygen entering the outlet chamber can be discharged through the third air hole. Therefore, the control diaphragm will be pushed downward by the oxygen in the control chamber to block the second air hole, so that the oxygen cannot smoothly enter the outlet chamber and avoids a large amount of oxygen leakage. When the user inhales through the outlet, the resulting negative pressure causes the middle part of the breathing diaphragm to move upwards. This creates a gap between the middle of the diaphragm and the upper transition plate, connecting the fourth vent and the exhaust channel. Oxygen from the control chamber can then be expelled through the fourth vent and exhaust channel, reducing pressure on the control diaphragm. This causes the middle part of the control diaphragm to move upwards, opening the second vent. Oxygen from the second vent then flows through the third vent and the outlet to supply oxygen to the user. When the user breathes, the control diaphragm closes the second vent again to prevent oxygen waste. Attached Figure Description

[0013] Figure 1 This is a cross-sectional schematic diagram of a lung-type breathing valve according to the present invention. Figure 1 .

[0014] Figure 2 for Figure 1 A magnified view of the area marked A in the middle.

[0015] Figure 3 This is a partial cross-sectional view of a lung-type breathing valve according to the present invention. Figure 2 .

[0016] Figure 4 for Figure 3 A magnified view of the area marked B.

[0017] Figure 5 This is a schematic diagram of the lower transition plate, upper transition plate, control diaphragm, and breathing diaphragm of a lung-type breathing valve according to the present invention.

[0018] Figure 6 This is a schematic diagram of the air outlet rod of a lung-type breathing valve according to the present invention.

[0019] Figure 7 This is a schematic diagram of the lower transition plate of a lung-type breathing valve according to the present invention.

[0020] Icons: 1-Outer shell, 3-Breathing chamber, 5-Outlet nozzle, 6-Outlet pipe, 7-Outlet rod, 9-First air hole, 10-Lower transition plate, 11-Outlet chamber, 12-Control diaphragm, 13-Second air hole, 14-Third air hole, 15-Upper transition plate, 16-Control chamber, 17-Fourth air hole, 18-Breathing diaphragm, 19-Outlet gap, 20-Fifth air hole, 21-Exhaust groove, 22-Rod body, 23-Plate body, 24-Insertion hole, 25-Sixth air hole, 26-Insertion block, 27-First air guide block, 28-Seventh air hole, 29-Ventilation groove, 30-Second air guide block, 31-Eighth air hole, 32-Ninth air hole, 33-Support block, 34-First convex ring, 35-Second convex ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] Figures 1 to 7 The image shows an embodiment of the present invention.

[0023] Example 1: A lung-type breathing valve includes a housing 1, within which a breathing chamber 3 is disposed. An air outlet 5, communicating with the breathing chamber 3, is disposed on the upper side of the housing 1. An air outlet pipe 6 is vertically disposed on the lower side of the housing 1. An air outlet rod 7 is installed within the breathing chamber 3. A first air hole 9, communicating with the air outlet pipe 6, is disposed at the upper end of the air outlet rod 7. A lower transition plate 10 is disposed at the upper end of the air outlet rod 7. An air outlet chamber 11 is recessed in the middle of the upper side of the lower transition plate 10. A control diaphragm 12, used to close the upper opening of the air outlet chamber 11, is disposed on the upper side of the lower transition plate 10. A second air hole 13, communicating with the first air hole 9, is disposed at the bottom of the air outlet chamber 11. The cavity wall of valve 11 is provided with a third air hole 14 communicating with the air outlet 5. An upper transition plate 15 is provided on the upper side of the control diaphragm 12. A control cavity 16 is recessed in the lower middle part of the upper transition plate 15. A fourth air hole 17 communicating with the control cavity 16 is provided in the middle of the upper side of the upper transition plate 15. A breathing diaphragm 18 is provided on the upper side of the upper transition plate 15. The edge of the breathing diaphragm 18 is fixed to the upper transition plate 15. An air outlet gap 19 is provided between the middle of the lower side of the lower transition plate 10 and the middle of the upper end of the air outlet rod 7. A fifth air hole 20 is provided on the lower transition plate 10 to connect the air outlet gap 19 and the control cavity 16. An exhaust groove 21 communicating with the side is provided on the upper side of the upper transition plate 15. When using the lung-type breathing valve of this application, the air outlet pipe 6 is aligned and connected with the oxygen supply pipe interface of the oxygen system, and oxygen enters into the air outlet pipe 6. After oxygen enters the outlet pipe 6, it passes through the first vent 9 and enters the outlet chamber 11 along the second vent 13, and enters the control chamber 16 along the fifth vent 20. When the user is not inhaling through the outlet nozzle 5, the breathing diaphragm 18 adheres to the upper side of the transition plate 15, sealing the fourth vent 17. At this time, the oxygen entering the control chamber 16 cannot be expelled, and the oxygen gradually increases. Meanwhile, the oxygen entering the outlet chamber 11 can be expelled through the third vent 14. Therefore, the control diaphragm 12 is pushed downward by the oxygen in the control chamber 16 to block the second vent 13, preventing oxygen from smoothly entering the outlet chamber 11 and avoiding a large amount of oxygen leakage. When the user inhales through the air outlet 5, the resulting negative pressure causes the middle part of the breathing diaphragm 18 to move upwards. This creates a gap between the middle part of the breathing diaphragm 18 and the upper transition plate 15, connecting the fourth air hole 17 and the exhaust groove 21. Oxygen in the control chamber 16 can then be expelled through the fourth air hole 17 and the exhaust groove 21, reducing the pressure on the control diaphragm 12. This causes the middle part of the control diaphragm 12 to move upwards, opening the second air hole 13. Oxygen from the second air hole 13 then flows through the third air hole 14 and the air outlet 5 to supply oxygen to the user. When the user breathes, the control diaphragm 12 closes the second air hole 13 again to prevent oxygen waste.

[0024] The breathing diaphragm 18 has annular protrusions near its edge, which can enhance the strength of the edge of the breathing diaphragm 18 and provide sufficient deformation when the middle of the breathing diaphragm 18 moves upward, so that the middle of the breathing diaphragm 18 can move upward smoothly when the user inhales.

[0025] The air outlet rod 7 includes a rod body 22 and a plate body 23. The rod body 22 is placed inside the air outlet pipe 6, with its upper end positioned above the air outlet pipe 6. The plate body 23 is located at the upper end of the rod body 22. The upper end of the first air hole 9 communicates with the middle of the upper side of the plate body 23, and its lower end is located on the side of the lower end of the rod body 22. The diameter of the lower part of the rod body 22 is smaller than the inner diameter of the air outlet pipe 6. On the upper side of the plate body 23, the middle part is recessed towards the center, so that when the lower transition plate 10 is installed on the upper side of the plate body 23, there is an air outlet gap 19 between the lower side of the lower transition plate 10 and the middle of the upper side of the plate body 23. When the rod body 22 is inserted into the air outlet pipe 6, the upper part of the rod body 22 matches the inner diameter of the air outlet pipe 6, which can block the air outlet pipe 6. At the same time, because the diameter of the lower part of the rod body 22 is smaller than the inner diameter of the air outlet pipe 6, oxygen can enter the first air hole 9 along the outer side of the lower part of the rod body 22.

[0026] An insertion hole 24 is recessed at the edge of the control cavity 16 on the lower side of the upper transition plate 15. The wall of the insertion hole 24 is connected to the control cavity 16 through a sixth air hole 25. A plug block 26 is provided on the lower transition plate 10 at the position corresponding to the insertion hole 24. The upper end of the fifth air hole 20 is placed on the upper end of the plug block 26 and is connected to the sixth air hole 25. The lower end of the fifth air hole 20 is placed on the lower side of the lower transition plate 10 and is connected to the air outlet gap 19. With the cooperation of the insertion hole 24, the plug block 26 and the sixth air hole 25, oxygen in the air outlet gap 19 can smoothly enter the regulating cavity. A gap is left between the upper end of the plug block 26 and the bottom of the insertion hole 24 to avoid blocking the fifth air hole 20 at the upper end of the plug block 26.

[0027] A first air guide block 27 is vertically arranged on the side of the lower transition plate 10. A seventh air hole 28 is arranged inside the first air guide block 27. The upper end of the seventh air hole 28 is located at the upper end of the first air guide block 27 and is connected to the air outlet 5. The lower end is connected to the third air hole 14. A ventilation groove 29 is arranged at the bottom of the air outlet chamber 11. The ventilation groove 29 is connected to the third air hole 14 on the wall of the air outlet chamber 11.

[0028] A second air guide block 30 is positioned at the top of the breathing chamber 3, corresponding to the first air guide block 27. The lower end of the second air guide block 30 is inserted into the upper end of the seventh air hole 28. An eighth air hole 31 is provided within the second air guide block 30 to facilitate communication between the seventh air hole 28 and the air outlet 5. Through the cooperation of the first air guide block 27 and the second air guide block 30, oxygen in the air outlet chamber 11 is guided to the top of the breathing membrane 18 and then discharged through the air outlet 5. The oxygen in the air outlet chamber 11 passes sequentially through the ventilation groove 29, the third air hole 14, the seventh air hole 28, and the eighth air hole 31 before being discharged through the air outlet 5.

[0029] The outer side of the first air guide block 27 is provided with a ninth air hole 32 that communicates with the seventh air hole 28. When the user inhales, the oxygen in the control chamber 16 is continuously discharged through the exhaust groove 21, so that the second air hole 13 can continuously output air. The oxygen discharged from the exhaust groove 21 will enter the seventh air hole 28 through the ninth air hole 32 in the breathing chamber 3, and then enter the air outlet 5 to be inhaled by the user, thus avoiding the waste of this part of the oxygen and further improving the oxygen utilization rate.

[0030] A support block 33 is provided at the bottom of the control chamber 16 near the fourth air hole 17. By providing the support block 33, it is possible to prevent the control diaphragm 12 from moving upward and blocking the fourth air hole 17 when the user inhales, thus preventing it from resetting properly downwards.

[0031] A first protruding ring 34 is formed around the bottom of the air outlet chamber 11, surrounding the second air hole 13. The height of the first protruding ring 34 is less than the height of the air outlet chamber 11. A second protruding ring 35 is provided around the upper side of the upper transition plate 15, surrounding the fourth air hole 17. By providing the first protruding ring 34, the upper end of the second air hole 13 can be brought as close as possible to the control diaphragm 12. This allows the middle part of the control diaphragm 12 to move downwards slightly and effectively block the second air hole 13. By providing the second protruding ring 35, the middle part of the control diaphragm 12 can better block the upper end of the fourth air hole 17 when the user is not inhaling, preventing air leakage from the fourth air hole 17.

[0032] Although the invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A lung-type breather valve characterized by, The utility model provides a kind of breathing mask, including shell (1), breathing cavity (3) is provided in the shell (1), the upper side of the shell (1) is provided with and the breathing cavity (3) is connected with the air outlet nozzle (5), the lower side of the shell (1) is vertically provided with air outlet pipe (6), air outlet rod (7) is installed in the breathing cavity (3), the upper end of the air outlet rod (7) is provided with and the air outlet pipe (6) is connected with the first air hole (9), the upper end of the air outlet rod (7) is provided with lower transition plate (10), the upper side of the lower transition plate (10) is recessed and provided with air outlet cavity (11) in the middle part, the upper side of the lower transition plate (10) is provided with control diaphragm (12) for closing air outlet cavity (11) upper end opening, the cavity bottom of the air outlet cavity (11) is provided with and the first air hole (9) is connected with the second air hole (13), the cavity wall of the air outlet cavity (11) is provided with and the air outlet nozzle (5) is connected with the third air hole (14), the upper side of the control diaphragm (12) is provided with upper transition plate (15), the lower side of the middle part of the upper transition plate (15) is recessed and provided with control cavity (16), the upper side of the middle part of the upper transition plate (15) is provided with and control cavity (16) is connected with the fourth air hole (17), the upper side of the upper transition plate (15) is provided with breathing diaphragm (18), the edge of the breathing diaphragm (18) is fixed with the upper transition plate (15), the middle part of the lower side of the lower transition plate (10) is provided with air outlet gap (19) with the middle part of the upper end of the air outlet rod (7), the upper side of the lower transition plate (10) is provided with and the fifth air hole (20) for connecting air outlet gap (19) and control cavity (16), the upper side of the upper transition plate (15) is provided with and side surface is connected with exhaust groove (21).

2. A lung-type breather valve according to claim 1, wherein: The air outlet rod (7) includes rod body (22) and plate body (23), the rod body (22) is placed in the air outlet pipe (6), and the upper end is placed above the air outlet pipe (6), the plate body (23) is arranged on the upper end of the rod body (22), the upper end of the first air hole (9) is communicated with the middle part of the upper side of the plate body (23), and the lower end is placed on the side of the lower end of the rod body (22), the diameter of the lower part of the rod body (22) is less than the inner diameter of the air outlet pipe (6).

3. A lung-type breather valve according to claim 1, wherein: The lower side of the upper transition plate (15) is recessed and provided with jack (24) in the edge of control cavity (16), the hole wall of the jack (24) is connected with the control cavity (16) through the sixth air hole (25), the upper end of the fifth air hole (20) is placed in the upper end of the plug block (26), and is communicated with the sixth air hole (25), the lower end of the fifth air hole (20) is placed in the lower side of the lower transition plate (10), and is communicated with the air outlet gap (19).

4. A lung-type breather valve according to claim 1, wherein: The side of the lower transition plate (10) is vertically provided with a first air guide block (27), the first air guide block (27) is internally provided with a seventh air hole (28), the upper end of the seventh air hole (28) is arranged at the upper end of the first air guide block (27) and is communicated with the air outlet nozzle (5), the lower end is communicated with the third air hole (14), the bottom of the air outlet cavity (11) is provided with a ventilation groove (29), the ventilation groove (29) is communicated with the third air hole (14) on the cavity wall of the air outlet cavity (11).

5. A lung-type breather valve according to claim 4, wherein: The top of the breathing cavity (3) is provided with a second air guide block (30) at the position corresponding to the first air guide block (27), the lower end of the second air guide block (30) is inserted into the upper end of the seventh air hole (28), the second air guide block (30) is internally provided with an eighth air hole (31) for guiding the seventh air hole (28) and the air outlet nozzle (5).

6. A lung-type breather valve according to claim 4, wherein: The outer side of the first air guide block (27) is provided with a ninth air hole (32) communicated with the seventh air hole (28).

7. A lung-type breather valve according to claim 1, wherein: The bottom of the control cavity (16) is provided with a support block (33) protruding at the position close to the fourth air hole (17).

8. A lung-type breather valve according to claim 1, wherein: The bottom of the air outlet cavity (11) is protruded to form a first convex ring (34) around the second air hole (13), the height of the first convex ring (34) is less than the height of the air outlet cavity (11); the upper side of the upper transition plate (15) is provided with a second convex ring (35) protruding around the fourth air hole (17).

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