Breathing synchronization pulse oxygen supply device and method

Abstract

The invention discloses a breathing synchronization pulse oxygen supply device and method, and relates to the technical field of medical instruments, the breathing synchronization pulse oxygen supply device comprises a valve body assembly, an oxygen saving assembly and a gear adjusting assembly, the valve body assembly is composed of an upper cover, a valve body, a valve body middle plate, a valve body lower plate and a pressing plate; the oxygen saving assembly is composed of a pilot diaphragm, a pilot spring, a main valve rod, a main valve rod spring, a main valve piston, a pilot valve rod, a pilot valve rod spring, a pressure supplementing needle valve, a pressure relief needle valve and a plurality of sealing rings. The gear adjusting assembly is composed of an adjusting ring and a gear plate. When the breathing synchronization pulse oxygen supply device works in the pulse oxygen supply mode, pulse type oxygen supply is achieved, and when the breathing synchronization pulse oxygen supply device works in the continuous oxygen supply mode, continuous oxygen supply is achieved. The structure that the metal piston is matched with the sealing ring is adopted, aging is not prone to occurring, the single-connector mode is adopted, cost is saved, and compatibility is improved; the oxygen outlet duration during inspiration is adjusted by adjusting the needle valve, operation is easy, control is easy, and the uniformity and stability of the oxygen outlet duration are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a respiration-synchronized pulse oxygen supply device and method. Background Art

[0002] At present, existing mechanical oxygen savers on the market generally use a pilot diaphragm and a main valve diaphragm to jointly control the opening and closing of the gas path. Since the diaphragm is relatively thin, as the usage time of the mechanical oxygen saver increases, the diaphragm may not be able to completely seal with the gas path due to aging, and even the diaphragm may rupture.

[0003] Secondly, the oxygen supply duration of the mechanical oxygen saver during inhalation is a key factor affecting the user experience. Currently, existing oxygen savers on the market generally cannot adjust the oxygen supply duration.

[0004] Finally, currently, mechanical oxygen savers on the market generally have two interfaces (a trigger interface and an oxygen outlet interface), and the nasal oxygen tube used in combination is a double-joint nasal oxygen tube. However, the general nasal oxygen tube on the market is generally in a single-joint form, with low compatibility. Summary of the Invention

[0005] To alleviate or solve at least one aspect or at least one point of the above problems, the present invention is proposed.

[0006] The present invention provides the following technical solutions: In a first aspect, the present application provides a respiration-synchronized pulse oxygen supply device, including a valve body assembly and a gear adjustment assembly. The valve body assembly is provided with an air inlet / outlet joint. Inside the valve body assembly, a first oxygen supply path and a second oxygen supply path are formed. Both the first oxygen supply path and the second oxygen supply path are communicated with the air inlet / outlet joint. The gear adjustment assembly includes an adjustment ring and a gear plate. The gear plate is provided with a plurality of pulse air holes and a plurality of continuous air holes. The adjustment ring can drive the gear plate to move relative to the valve body assembly between a first position range and a second position range. In the first position range, one of the plurality of pulse air holes is communicated with the first oxygen supply path. In the second position range, one of the plurality of continuous air holes is communicated with the second oxygen supply path.

[0007] Preferably, the valve body assembly includes an upper cover, a valve body, a valve body middle plate, a valve body lower plate, and a pressing plate, which are sequentially arranged from top to bottom. The side surface of the valve body is provided with an air inlet / outlet joint. The upper cover, the valve body, the valve body middle plate, and the valve body lower plate are tightly connected by a plurality of fasteners. The center of the pressing plate is provided with a mounting hole. The center of the valve body lower plate is provided with a connecting portion, and a threaded structure is provided on the outer surface of the connecting portion. The pressing plate is sleeved outside the connecting portion of the valve body lower plate and is tightly connected using a nut.

[0008] Preferably, an oxygen-saving component is arranged inside the valve body assembly. The oxygen-saving component includes a pilot diaphragm, a pilot spring, a main valve stem, a main valve stem spring, a main valve piston, a pilot valve stem, a pilot valve stem spring, a pressure compensation needle valve, and a pressure relief needle valve. The pilot diaphragm is arranged between the upper cover and the valve body. One end of the pilot spring abuts against the installation groove provided on the upper cover, and the other end abuts against the connection part provided at the center of the pilot diaphragm. The main valve stem, the main valve stem spring, and the main valve piston are sequentially arranged from top to bottom in the installation hole provided at the center of the valve body. The upper end of the main valve stem is arranged in the installation groove provided on the valve body. The main valve stem spring is arranged between the valve body and the main valve stem. One end of the main valve stem spring abuts against the installation groove of the main valve stem, and the other end abuts against the installation groove provided at the center of the upper end of the valve body. The main valve piston is arranged in the installation hole provided at the center of the valve body. An installation groove is provided at the center below the main valve piston. A first air passage port is provided at the lower end part of the main valve stem. The lower end of the pilot valve stem is arranged in the installation hole provided at the center of the middle plate of the valve body. The upper end of the pilot valve stem is arranged in the installation groove below the main valve piston. An installation groove is provided at the center of the upper surface of the lower plate of the valve body. The pilot valve stem spring is located between the pilot valve stem and the lower plate of the valve body. One end of it abuts against the connection part at the lower end of the pilot valve stem, and the other end abuts against the installation groove of the lower plate of the valve body. The pressure compensation needle valve and the pressure relief needle valve are of a cone structure and are arranged in the installation groove on the side surface of the middle plate of the valve body.

[0009] Preferably, the oxygen-saving component further includes a plurality of sealing rings. The sealing rings are arranged on the outer surface of the upper end of the main valve stem for sealing between the main valve stem and the valve body. The sealing rings are arranged on the outer surface of the lower end of the main valve stem for sealing between the main valve stem and the valve body. The sealing rings are arranged on the outer peripheral surface of the main valve piston for sealing between the main valve piston and the valve body. The sealing rings are arranged on the lower end and the outer surface of the lower end of the pilot valve stem for sealing between the pilot valve stem and the middle plate of the valve body.

[0010] Preferably, the gear shifting and adjusting component is arranged on the side surface of the valve body assembly. The gear shifting plate is arranged between the lower plate of the valve body and the pressing plate. The adjusting ring is sleeved on the outer peripheral surfaces of the valve body, the middle plate of the valve body, and the lower plate of the valve body.

[0011] Preferably, the main valve stem, the valve body, the main valve piston, and the pilot valve stem are made of metal material, and the sealing rings are made of rubber material.

[0012] Preferably, a first chamber is formed between the valve body and the lower end of the main valve stem; a second chamber is formed between the valve body and the upper end of the main valve stem; a third chamber is formed between the upper cover and the pilot diaphragm; a fourth chamber is formed among the main valve stem, the valve body, and the main valve piston; a fifth chamber is formed between the pilot diaphragm and the valve body; a sixth chamber is formed among the main valve piston, the valve body, and the middle plate of the valve body.

[0013] Preferably, a first oxygen supply airway, a second oxygen supply airway, a first trigger airway, a second trigger airway, a first pressure compensation airway, and a first pressure relief airway are arranged inside the valve body, and a fifth trigger airway is arranged inside the upper cover; a second pressure relief airway, a third trigger airway, a second pressure compensation airway, a fourth trigger airway, and a third oxygen supply airway are arranged inside the middle plate of the valve body, a fourth oxygen supply airway, a fifth oxygen supply airway, and a third pressure compensation airway are arranged inside the lower plate of the valve body, a continuous oxygen supply airway, a pulse oxygen supply airway, and a fourth pressure compensation airway are arranged inside the pressing plate, a third pressure relief airway is arranged on the upper surface of the valve body, and a first air passage port is arranged at the lower end of the main valve stem.

[0014] Preferably, the first pressure compensation airway, the second pressure compensation airway, the third pressure compensation airway, and the fourth pressure compensation airway form a pressure compensation air path; The air inlet and outlet joint, the first trigger airway, the third trigger airway, the fourth trigger airway, the second trigger airway, and the fifth trigger airway form a trigger air path; The first pressure relief airway and the third pressure relief airway form a first pressure relief air path; the second pressure relief airway and the first pressure relief airway form a second pressure relief air path; The air inlet and outlet joint, the first oxygen supply airway, the second oxygen supply airway, the third oxygen supply airway, the fourth oxygen supply airway, the pulse air hole, and the pulse oxygen supply airway form the first oxygen supply air path; The air inlet and outlet joint, the first trigger airway, the third trigger airway, the fifth oxygen supply airway, the continuous air hole, and the continuous oxygen supply airway form the second oxygen supply air path.

[0015] In a second aspect, the present application provides a method for breathing synchronous pulse oxygen supply. When the adjusting ring is in the first position, the method includes the following steps: S1. The oxygen source gas enters the breathing synchronous pulse oxygen supply device from the oxygen inlet and respectively enters the pressure compensation air path, the second oxygen supply air path, and the first oxygen supply air path. One of them enters the fourth chamber through the pressure compensation air path, and the main valve piston is subjected to the downward atmospheric pressure; a pressure compensation needle valve is arranged in the pressure compensation air path, and the triggering sensitivity is adjusted by adjusting the pressure compensation degree. S2. Under the action of the downward pressure of the main valve piston and the elastic force of the pilot valve stem spring, the lower end of the pilot valve stem is in a separated state from the middle plate of the valve body. S3. When inhaling from the air inlet and outlet joint, the negative pressure gas enters the third chamber through the trigger air path. S4. The air pressure in the third chamber decreases, causing the pilot diaphragm to move upward and separate from the seal of the third pressure relief airway. S5. The gas in the second chamber is discharged through the first pressure relief air path and the air pressure decreases, and the main valve stem moves upward. S6. The oxygen source gas enters the air inlet / outlet joint through the first oxygen supply path and the first chamber; S7. Meanwhile, since the oxygen gas in the fourth chamber is discharged through the first gas passage port, the second chamber and the first pressure relief gas path, the air pressure decreases, the main valve piston moves upward, and the pilot valve rod seals with the valve body middle plate; S8. After the inhalation ends, the pilot diaphragm resumes sealing with the third pressure relief air passage, and the gas in the fifth chamber is discharged through the first pressure relief air passage; the oxygen gas enters the second chamber through the pressure compensation gas path and the first gas passage port, the air pressure in the second chamber increases, pushing the main valve stem back to the initial position, and the first oxygen supply path closes; meanwhile, since the air pressure in the fourth chamber increases, it pushes the main valve piston and the pilot valve rod downward, the pilot valve rod resumes the separated state from the valve body middle plate, the trigger gas path opens, the gas in the sixth chamber is discharged through the second pressure relief gas path, and the pressure relief needle valve in the second pressure relief gas path adjusts the exhaust speed to realize the adjustment of the oxygen output duration of the oxygen supply; S9. The functions of triggering oxygen supply during inhalation and stopping oxygen supply when stopping inhalation are realized.

[0016] When the adjusting ring is in the second position, it includes the following steps: The oxygen source gas enters the respiratory synchronous pulse oxygen supply device from the oxygen inlet and realizes the continuous oxygen supply function through the second oxygen supply path.

[0017] The present invention adopts a metal piston with a sealing ring structure to replace the traditional main valve diaphragm structure. Since the metal piston and the sealing ring are less likely to age than the diaphragm, the service life of the equipment can be extended; the user connection part of the present invention adopts a single-interface form. Compared with the double-interface form, it not only saves costs, but also can be adapted to the general single-joint nasal oxygen tube on the market, and users can replace the nasal oxygen tube by themselves, avoiding the risk of infection caused by long-term use and improving compatibility; the user connection part adopts a single-interface form, and its internal gas path is completely different from the traditional double-interface form. The trigger gas path and the oxygen output gas path are independent of each other, greatly improving the accuracy of the gas path opening and closing control; the present invention is provided with a needle valve structure, and the oxygen output duration during inhalation can be adjusted through the pressure relief needle valve. The operation is simple, easy to control, and improves the uniform stability of the oxygen output duration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall structure diagram of an exemplary embodiment of the present invention.

[0019] Figure 2 is Figure 1 the cross-sectional view taken along the line A-A in

[0020] Figure 3 is Figure 1Schematic diagram of the B-B cross-sectional view.

[0021] Figure 4 is Figure 1 Schematic diagram of the E-E cross-sectional view.

[0022] Figure 5 Schematic diagram of the gear shift plate of an exemplary embodiment of the present invention.

[0023] Figure 6 Schematic diagram of the gas flow direction of the trigger gas path of an exemplary embodiment of the present invention.

[0024] Figure 7 Schematic diagram of the gas flow direction of the oxygen supply gas path of an exemplary embodiment of the present invention.

[0025] Figure 8 Schematic diagram of the gas flow direction of the pressure compensation gas path of an exemplary embodiment of the present invention.

[0026] Figure 9 Schematic diagram of the gas flow direction of the first pressure relief gas path of an exemplary embodiment of the present invention.

[0027] Figure 10 Schematic diagram of the gas flow direction of the second pressure relief gas path of an exemplary embodiment of the present invention.

[0028] Figure 11 Schematic diagram of the principle of an exemplary embodiment of the present invention.

[0029] Wherein: 101 - upper cover; 1011 - fifth trigger air passage; 102 - valve body; 1021 - air inlet and outlet joint; 1022 - first oxygen supply passage; 1023 - first trigger passage; 1024 - second oxygen supply passage; 1025 - second trigger passage; 1026 - first pressure compensation passage; 1027 - first pressure relief passage; 1028 - third pressure relief passage; 103 - middle plate of valve body; 1031 - second pressure relief passage; 1032 - third trigger passage; 1033 - second pressure compensation passage; 1034 - fourth trigger passage; 1035 - third oxygen supply passage; 104 - lower plate of valve body; 1041 - fourth oxygen supply passage; 1042 - fifth oxygen supply passage; 1043 - third pressure compensation passage; 105 - pressing plate; 1051 - continuous oxygen supply passage; 1052 - pulse oxygen supply passage; 1053 - fourth pressure compensation passage; 201 - pilot diaphragm; 202 - pilot spring; 204 - main valve stem; 2041 - first gas passage port; 205 - main valve stem spring; 206 - main valve piston; 207 - pilot valve stem; 208 - pilot valve stem spring; 209 - pressure compensation needle valve; 210 - pressure relief needle valve; 211 - sealing ring; 301 - Adjusting ring; 302 - Gear plate; 3021 - Pulse air passage hole; 3022 - Continuous air passage hole; 41 - Supplementary pressure air path; 42 - Trigger air path; 43 - First oxygen supply air path; 44 - Second oxygen supply air path; 45 - First pressure relief air path; 46 - Second pressure relief air path; 51 - First chamber; 52 - Second chamber; 53 - Third chamber; 54 - Fourth chamber; 55 - Fifth chamber; 56 - Sixth chamber. Detailed implementation mode

[0030] The following description of the embodiments of the present invention with reference to the drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention. In the present invention, the same reference numerals represent the same or similar components.

[0031] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. On the contrary, the examples provided herein are only to illustrate some of the many feasible ways of implementing the methods, devices, and / or systems described herein, and many other feasible ways will be apparent after understanding the disclosure of the present invention.

[0032] Although terms such as "first", "second", and "third" may be used herein to describe various components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts should not be limited by these terms. On the contrary, these terms are only used to distinguish one component, assembly, region, layer, or part from another component, assembly, region, layer, or part.

[0033] In the specification, when an element (such as a layer, region, or substrate) is described as "on", "connected to", or "bonded to" another element, the element can be directly "on", directly "connected to", or "bonded to" another element, or there may be one or more other elements in between. On the contrary, when an element is described as "directly on", "directly connected to", or "directly bonded to" another element, there may be no other elements in between.

[0034] The terms used herein are only for describing various examples and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprising", "including", and "having" indicate the presence of the described features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0035] In order to enable those skilled in the art to use the content of the present invention, the following exemplary embodiments may be given hereinafter in combination with specific application scenarios, parameters of specific systems, devices and components, and specific connection methods. However, for those skilled in the art, these embodiments are only examples, and the general principles defined here can be applied to other embodiments and application scenarios without departing from the spirit and scope of the present invention.

[0036] According to an exemplary embodiment of the present invention: As Figures 1 - 5 and Figure 11 shown, a respiratory synchronization pulse oxygen supply device of the present invention includes: a valve body assembly, an oxygen-saving assembly, and a gear adjustment assembly; the oxygen-saving assembly is located inside the valve body assembly, and the gear adjustment assembly is arranged on the side surface of the valve body assembly.

[0037] The valve body assembly is composed of an upper cover 101, a valve body 102, a valve body middle plate 103, a valve body lower plate 104, and a pressing plate 105; the upper cover 101 is arranged above the valve body 102, and the valve body middle plate 103, the valve body lower plate 104, and the pressing plate 105 are sequentially arranged below the valve body 102 from top to bottom. The upper cover 101, the valve body 102, the valve body middle plate 103, and the valve body lower plate 104 are locked and connected by two or more fasteners. Exemplarily, the fasteners are screws. An installation hole is provided at the center of the pressing plate 105, a connecting portion is provided at the center of the valve body lower plate 104, a threaded structure is provided on the outer surface of the connecting portion, the pressing plate 105 is sleeved outside the connecting portion of the valve body lower plate 104, and is locked and connected by a nut. An air inlet / outlet joint 1021 is provided on the side surface of the valve body 102.

[0038] The oxygen-saving assembly is composed of a pilot diaphragm 201, a pilot spring 202, a main valve stem 204, a main valve stem spring 205, a main valve piston 206, a pilot valve stem 207, a pilot valve stem spring 208, a pressure compensation needle valve 209, a pressure relief needle valve 210, and a plurality of sealing rings 211; the main valve stem 204, the valve body 102, the main valve piston 206, and the pilot valve stem 207 are made of metal, and the sealing structure formed with the sealing ring 211 made of rubber material is not easily aged compared with the traditional diaphragm, so the service life of the equipment can be extended.

[0039] The pilot diaphragm 201 is disposed between the upper cover 101 and the valve body 102. The pilot spring 202 is disposed between the upper cover 101 and the pilot diaphragm 201. One end of the pilot spring 202 abuts against the installation groove provided on the upper cover 101, and the other end abuts against the connecting portion provided at the center of the pilot diaphragm 201. The main valve stem 204, the main valve stem spring 205, and the main valve piston 206 are sequentially arranged from top to bottom in the installation hole provided at the center of the valve body 102. The upper end of the main valve stem 204 is disposed in the installation groove provided on the valve body 102. The lower end of the main valve stem 204 is located in the central installation hole of the valve body 102. The main valve stem spring 205 is disposed between the valve body 102 and the main valve stem 204. One end of the main valve stem spring 205 abuts against the installation groove of the main valve stem 204, and the other end abuts against the installation groove provided at the center of the upper end of the valve body 102. The main valve piston 206 is disposed in the installation hole provided at the center of the valve body 102. An installation groove is provided at the center below the main valve piston 206. The lower end of the pilot valve stem 207 is disposed in the installation hole provided at the center of the middle plate 103 of the valve body. The upper end of the pilot valve stem 207 is disposed in the installation groove below the main valve piston. An installation groove is provided at the center of the upper surface of the lower plate 104 of the valve body. The pilot valve stem spring 208 is located between the pilot valve stem 207 and the lower plate 104 of the valve body. One end thereof abuts against the connecting portion at the lower end of the pilot valve stem 207, and the other end abuts against the installation groove of the lower plate 104 of the valve body. The make-up pressure needle valve 209 and the pressure relief needle valve 210 are respectively disposed in the installation grooves on the side surface of the middle plate 103 of the valve body.

[0040] Sealing rings 211 are provided on the outer surface of the upper end of the main valve stem 204 for sealing between the main valve stem 204 and the valve body 102. Sealing rings 211 are provided on the outer surface of the lower end of the main valve stem 204 for sealing between the main valve stem 204 and the valve body 102. Sealing rings 211 are provided on the outer peripheral surface of the main valve piston 206 for sealing between the main valve piston 206 and the valve body 102. Sealing rings 211 are respectively provided on the lower end and the outer surface of the lower end of the pilot valve stem 207 for sealing between the pilot valve stem 207 and the middle plate 103 of the valve body.

[0041] The gear adjustment assembly is composed of an adjustment ring 301 and a gear plate 302. The gear plate 302 is disposed between the lower plate 104 of the valve body and the pressing plate 105. The adjustment ring 301 is sleeved on the outer peripheral surfaces of the valve body 102, the middle plate 103 of the valve body, and the lower plate 104 of the valve body.

[0042] Exemplarily, the adjustment ring 301 can drive the gear plate 302 to move relative to the valve body assembly between a first position range and a second position range. In the first position range, one of the plurality of pulse air holes 3021 can be communicated with the first oxygen supply path 43. In the second position range, one of the plurality of continuous air holes 3022 can be communicated with the second oxygen supply path 44.

[0043] Preferably, the adjusting ring 301 is rotatably fixed on the valve body 102. Optionally, an annular protrusion is provided on the inner circumference of the adjusting ring 301, and an annular groove is provided on the outer circumference of the valve body 102. When the two cooperate, the annular protrusion is placed in the annular groove to achieve a rotatable connection, and the adjusting ring 301 can drive the gear plate 302 to rotate together.

[0044] Gas path description: As Figures 1 - 11 shown, a first chamber 51 is formed between the valve body 102 and the lower end of the main valve stem 204; a second chamber 52 is formed between the valve body 102 and the upper end of the main valve stem 204; a third chamber 53 is formed between the upper cover 101 and the pilot diaphragm 201; a fourth chamber 54 is formed among the main valve stem 204, the valve body 102 and the main valve piston 206; a fifth chamber 55 is formed between the pilot diaphragm 201 and the valve body 102; a sixth chamber 56 is formed among the main valve piston 206, the valve body 102 and the valve body middle plate 103.

[0045] Inside the valve body 102, a first oxygen supply channel 1022, a first trigger air channel 1023, a second oxygen supply channel 1024, a second trigger air channel 1025, a first pressure compensation channel 1026, and a first pressure relief channel 1027 are provided; inside the upper cover 101, a fifth trigger air channel 1011 is provided; inside the valve body middle plate 103, a second pressure relief channel 1031, a third trigger air channel 1032, a second pressure compensation channel 1033, a fourth trigger air channel 1034, and a third oxygen supply channel 1035 are provided; inside the valve body lower plate 104, a fourth oxygen supply channel 1041, a fifth oxygen supply channel 1042, and a third pressure compensation channel 1043 are provided; the gear plate 302 is provided with a plurality of pulse air holes 3021 with gradually increasing pore diameters; the gear plate 302 is provided with a plurality of continuous air holes 3022 with gradually increasing pore diameters; inside the pressing plate 105, a continuous oxygen supply channel 1051, a pulse oxygen supply channel 1052, and a fourth pressure compensation channel 1053 are provided; on the upper surface of the valve body 102, a third pressure relief channel 1028 is provided; at the lower end of the main valve stem 204, a first air passage 2041 is provided.

[0046] The first pressure compensation channel 1026, the second pressure compensation channel 1033, the third pressure compensation channel 1043, and the fourth pressure compensation channel 1053 form a pressure compensation gas path 41; The air inlet / outlet joint 1021, the first trigger air channel 1023, the third trigger air channel 1032, the fourth trigger air channel 1034, the second trigger air channel 1025, and the fifth trigger air channel 1011 constitute a trigger gas path 42; The air inlet / outlet joint 1021, the first oxygen supply channel 1022, the second oxygen supply channel 1024, the third oxygen supply channel 1035, the fourth oxygen supply channel 1041, the pulse air holes 3021, and the pulse oxygen supply channel 1052 constitute a first oxygen supply gas path 43; The air inlet / outlet joint 1021, the first trigger air duct 1023, the third trigger air duct 1032, the fifth oxygen supply air duct 1042, the continuous air vent holes 3022 and the continuous oxygen supply air duct 1051 form the second oxygen supply air path 44; The first pressure relief air duct 1027 and the third pressure relief air duct 1028 form the first pressure relief air path 45; the second pressure relief air duct 1031 and the first pressure relief air duct 1027 form the second pressure relief air path 46.

[0047] Working principle: Initial state: Under the elastic force of the pilot spring 202, the pilot diaphragm 201 is in close contact with the third pressure relief air duct 1028 of the valve body 102; the oxygen from the oxygen source enters the fourth chamber 54 through the pressure compensation air path 41, and then enters the second chamber 52 through the first air vent 2041. Under the pressure of oxygen and the action of the main valve stem spring 205, the main valve stem 204 is in a state of being in close contact with the valve body 102; under the pressure of oxygen, the main valve piston 206 is at the lower position of the active area, pushing the pilot valve stem 207 downward, and is in a state where its lower end sealing ring 211 is separated from the middle plate 103 of the valve body, thereby triggering the opening of the air path 42. At this time, the pilot valve stem spring 208 is in a compressed state.

[0048] When the rotary adjustment ring 301 is in the first position, one of the multiple pulse air vent holes 3021 on the gear plate 302 is communicated with the first oxygen supply air path 43, and at this time, the pulse oxygen supply mode is triggered; by rotating the gear plate 302, different aperture pulse air vent holes 3021 can be adjusted to be communicated with the first oxygen supply air path 43.

[0049] When the user inhales, since the pilot valve stem 207 is in a separated state from the valve body middle plate 103, the trigger gas path 42 is in an open state. The inhalation negative pressure enters the third chamber 53 through the trigger gas path 42. Under the negative pressure, the pilot diaphragm 201 is separated from the third pressure relief air path 1028, enabling the gas in the second chamber 52 to be discharged through the third pressure relief air path 1028 and the first pressure relief air path 1027. The air pressure decreases, and the main valve stem 204 moves upward, disengaging from the sealing state with the valve body 102. The first oxygen supply gas path 43 is opened to supply oxygen. Since the oxygen in the fourth chamber 54 is discharged through the first air passage port 2041, the second chamber 52, and the first pressure relief gas path 45, the pressure decreases, and the main valve piston 206 moves upward. At the same time, the pilot valve stem 207 moves upward to seal with the valve body middle plate 103, thereby closing the trigger gas path 42. The pilot diaphragm 201 resumes a tightly fitting state with the third pressure relief air path 1028 of the valve body 102, and the gas in the fifth chamber 55 is discharged through the first pressure relief air path 1027. The oxygen from the oxygen source enters the fourth chamber 54 through the pressure compensation gas path 41 and enters the second chamber 52 through the first air passage port 2041 at the lower end of the main valve stem 204, increasing the pressure in the second chamber 52 and pushing the main valve stem 204 downward to seal with the valve body 102. At the same time, the main valve piston 206 is pushed downward due to the increased air pressure in the fourth chamber 54, and the gas in the sixth chamber 56 is discharged through the second pressure relief air path 1031. At the same time, the pilot valve stem 207 is pushed downward by the main valve piston 206, and the sealing ring 211 at the lower end of the pilot valve stem 207 is separated from the valve body middle plate 103, that is, one inhalation oxygen supply is completed, realizing the inhalation trigger pulse oxygen supply function.

[0050] When the rotary adjustment ring 301 is in the second position, one of the multiple continuous air holes 3022 on the gear plate 302 is communicated with the second oxygen supply gas path 44, triggering the continuous oxygen supply mode; by rotating the gear plate 302, different aperture continuous air holes 3022 can be adjusted to be communicated with the second oxygen supply gas path 44.

[0051] The oxygen from the oxygen source is directly supplied to the user through the second oxygen supply gas path 44, realizing the continuous mode oxygen supply function.

[0052] The pressure compensation gas path 41 is provided with a pressure compensation needle valve 209, whose function is to trigger the sensitivity debugging after installation. Since the tip of the pressure compensation needle valve 209 is in a conical structure, by adjusting the pressure compensation needle valve 209, the opening degree of the pressure compensation gas path 41 is controlled to balance the force received by the main valve stem 204, enabling the main valve stem 204 to move up and down during breathing and thus controlling the opening and closing of the oxygen supply gas path; the second pressure relief air path 1031 is provided with a pressure relief needle valve 210, whose function is to trigger the oxygen output duration debugging after installation. The tip of the pressure relief needle valve 210 is also in a conical structure. By adjusting the pressure relief needle valve 210, the exhaust speed of the second pressure relief air path 1031 is controlled, and then the speed of the closing process of the main valve stem 204 and the valve body 102 is controlled to realize the adjustment of the oxygen output duration.

[0053] According to an exemplary embodiment of the present invention, as Figures 1 - 11 shown, for a breathing synchronization pulse oxygen supply method, when the adjustment ring 301 is in the first position, the following steps are included: S1. The oxygen source gas enters the breathing synchronization pulse oxygen supply device of the present application from the oxygen inlet, and respectively enters the pressure compensation gas path 41, the second oxygen supply gas path 44, and the first oxygen supply gas path 43. It enters the fourth chamber 54 through the pressure compensation gas path 41, and the main valve piston 206 is subjected to the downward atmospheric pressure; a pressure compensation needle valve 209 is provided in the pressure compensation gas path 41, and the triggering sensitivity is adjusted by adjusting the pressure compensation degree; S2. Under the action of the downward pressure of the main valve piston 206 and the elastic force of the pilot valve stem spring 208, the lower end of the pilot valve stem 207 is in a separated state from the valve body middle plate 103; S3. When inhaling from the air inlet and outlet joint 1021, the negative pressure gas enters the third chamber 53 through the triggering gas path 42; S4. The air pressure in the third chamber 53 decreases, causing the pilot diaphragm 201 to move upward and separate from the sealing of the third pressure relief air passage 1028; S5. The gas in the second chamber 52 is discharged through the first pressure relief gas path 45 and the air pressure decreases, and the main valve stem 204 moves upward; S6. The oxygen source gas enters the air inlet and outlet joint 1021 through the first oxygen supply gas path 43 and the first chamber 51; S7. At the same time, since the oxygen gas in the fourth chamber 54 is discharged through the first gas passage 2041, the second chamber 52, and the first pressure relief gas path 45 and the air pressure decreases, the main valve piston 206 moves upward, and the pilot valve stem 207 seals with the valve body middle plate 103; S8. After the inhalation ends, the pilot diaphragm 201 resumes sealing with the third pressure relief air passage 1028, and the gas in the fifth chamber 55 is discharged through the first pressure relief air passage 1027; the oxygen gas enters the second chamber 52 through the pressure compensation gas path 41 and the first gas passage 2041, the air pressure in the second chamber 52 increases, pushing the main valve stem 204 back to the initial position, and the first oxygen supply gas path 43 closes; at the same time, since the air pressure in the fourth chamber 54 increases, pushing the main valve piston 206 and the pilot valve stem 207 downward, the pilot valve stem 207 resumes to a separated state from the valve body middle plate 103, the triggering gas path 42 opens, the gas in the sixth chamber 56 is discharged through the second pressure relief gas path 46, and the pressure relief needle valve 210 in the second pressure relief gas path 46 adjusts the oxygen output duration of the oxygen supply by adjusting the exhaust speed; S9. Realize the function of triggering oxygen supply during inhalation and stopping oxygen supply when stopping inhalation.

[0054] When the adjustment ring 301 is in the second position, the following steps are included, The oxygen source gas enters the respiration synchronous pulse oxygen supply device through the oxygen inlet and is directly supplied to the user through the second oxygen supply path 44 to achieve the continuous oxygen supply function.

[0055] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that these embodiments can be changed and element combinations can be made without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A breathing synchronized pulse oxygen supply device, characterized in that: The invention comprises a valve body component and a gear adjustment component, wherein the valve body component is provided with an inlet and outlet air joint (1021), a first oxygen supply circuit (43) and a second oxygen supply circuit (44) are formed inside the valve body component, the first oxygen supply circuit (43) and the second oxygen supply circuit (44) are both connected to the inlet and outlet air joint (1021), the gear adjustment component comprises an adjustment ring (301) and a gear plate (302), the gear plate (302) is provided with a plurality of pulse air holes (3021) and a plurality of continuous air holes (3022), the adjustment ring (301) can drive the gear plate (302) to move relative to the valve body component between a first position range and a second position range, In the first position range, one of the plurality of pulse air holes (3021) is connected to the first oxygen supply path (43). In the second position range, one of the plurality of continuous air holes (3022) is connected to the second oxygen supply path (44).

2. The breathing synchronized pulse oxygen supply device according to claim 1, characterized in that: The valve body assembly comprises an upper cover (101), a valve body (102), a valve body middle plate (103), a valve body lower plate (104), and a pressure plate (105) which are arranged in sequence from top to bottom. The side surface of the valve body (102) is provided with an inlet and outlet gas joint (1021). The upper cover (101), the valve body (102), the valve body middle plate (103), and the valve body lower plate (104) are locked and connected by a plurality of fasteners. A mounting hole is provided at the center of the pressure plate (105). A connecting portion is provided at the center of the valve body lower plate (104), and a threaded structure is provided on the outer surface of the connecting portion. The pressure plate (105) is sleeved outside the connecting portion of the valve body lower plate (104) and is locked and connected using a nut.

3. The breathing synchronized pulse oxygen supply device according to claim 2, characterized in that: An oxygen-saving component is arranged inside the valve body component, and the oxygen-saving component comprises a pilot diaphragm (201), a pilot spring (202), a main valve stem (204), a main valve stem spring (205), a main valve piston (206), a pilot valve stem (207), a pilot valve stem spring (208), a pressure-compensating needle valve (209) and a pressure-relieving needle valve (210). The pilot diaphragm (201) is arranged between the upper cover (101) and the valve body (102), and one end of the pilot spring (202) is connected to a mounting arrangement arranged on the upper cover (101). The main valve stem (204), the main valve stem spring (205), and the main valve piston (206) are sequentially arranged in a mounting hole arranged in the center of the valve body (102) from top to bottom. The upper end of the main valve stem (204) is arranged in a mounting groove arranged in the valve body (102). The main valve stem spring (205) is arranged between the valve body (102) and the main valve stem (204). One end of the main valve stem spring (205) is in contact with the connecting portion arranged at the center of the pilot diaphragm (201). The main valve stem (204) has one end that abuts against the mounting groove of the main valve stem (204), and the other end abuts against the mounting groove provided at the center of the upper end of the valve body (102). The main valve piston (206) is arranged in a mounting hole provided at the center of the valve body (102). A mounting groove is provided at the center below the main valve piston (206). The lower end of the main valve stem (204) is provided with a first air outlet (2041). The lower end of the pilot valve stem (207) is arranged in the mounting hole at the center of the valve body middle plate (103). The upper end of the pilot valve stem (207) is provided with a It is placed in the mounting groove below the main valve piston (206), and a mounting groove is provided at the center of the upper surface of the valve body lower plate (104). The pilot valve stem spring (208) is located between the pilot valve stem (207) and the valve body lower plate (104), one end of which is against the connecting portion at the lower end of the pilot valve stem (207), and the other end is against the mounting groove of the valve body lower plate (104). The pressure-compensating needle valve (209) and the pressure-relieving needle valve (210) are of conical structure and are provided in the side mounting groove of the valve body middle plate (103).

4. The breathing synchronized pulse oxygen supply device according to claim 3, characterized in that: The oxygen-saving component further comprises a plurality of sealing rings (211), wherein the sealing rings (211) are arranged on the outer surfaces of the upper end and the lower end of the main valve stem (204) and are used for sealing between the main valve stem (204) and the valve body (102); the sealing rings (211) are arranged on the outer peripheral surface of the main valve piston (206) and are used for sealing between the main valve piston (206) and the valve body (102); and the sealing rings (211) are arranged on the lower end and the outer surface of the lower end of the pilot valve stem (207) and are used for sealing between the pilot valve stem (207) and the valve body middle plate (103).

5. The breathing synchronized pulse oxygen supply device according to claim 4, characterized in that: The gear adjustment assembly is arranged on the side of the valve body assembly, the gear plate (302) is arranged between the valve body lower plate (104) and the pressure plate (105), and the adjustment ring (301) is sleeved on the outer peripheral surfaces of the valve body (102), the valve body middle plate (103) and the valve body lower plate (104).

6. The breathing synchronized pulse oxygen supply device according to claim 5, characterized in that: The main valve stem (204), the valve body (102), the main valve piston (206), and the pilot valve stem (207) are made of metal, and the sealing ring (211) is made of rubber.

7. The breathing synchronized pulse oxygen supply device according to claim 6, characterized in that: A first chamber (51) is formed between the valve body (102) and the lower end of the main valve stem (204); a second chamber (52) is formed between the valve body (102) and the upper end of the main valve stem (204); a third chamber (53) is formed between the upper cover (101) and the pilot diaphragm (201); a fourth chamber (54) is formed between the main valve stem (204), the valve body (102) and the main valve piston (206); a fifth chamber (55) is formed between the pilot diaphragm (201) and the valve body (102); and a sixth chamber (56) is formed between the main valve piston (206), the valve body (102) and the valve body middle plate (103).

8. The breathing synchronized pulse oxygen supply device according to claim 7, characterized in that: The valve body (102) is provided with a first oxygen supply channel (1022), a second oxygen supply channel (1024), a first trigger air channel (1023), a second trigger air channel (1025), a first pressure compensation air channel (1026) and a first pressure relief air channel (1027); the upper cover (101) is provided with a fifth trigger air channel (1011); the valve body middle plate (103) is provided with a second pressure relief air channel (1031), a third trigger air channel (1032), a second pressure compensation air channel (1033), a first pressure relief air channel (1034), a second pressure relief air channel (1035), a first pressure compensation air channel (1036), and a first pressure relief air channel (1037). The valve body (102) is provided with a third pressure relief air channel (1028); the valve body (102) is provided with a fourth oxygen supply channel (1041), a fifth oxygen supply channel (1042), and a third pressure relief air channel (1043); the valve body lower plate (104) is provided with a fourth oxygen supply channel (1041), a fifth oxygen supply channel (1042), and a third pressure relief air channel (1043); the pressure plate (105) is provided with a continuous oxygen supply channel (1051), a pulse oxygen supply channel (1052), and a fourth pressure relief air channel (1053); and the valve body (102) is provided with a third pressure relief air channel (1028) on its upper surface.

9. The breathing synchronized pulse oxygen supply device according to claim 8, characterized in that: The first pressure-boosting air channel (1026), the second pressure-boosting air channel (1033), the third pressure-boosting air channel (1043), and the fourth pressure-boosting air channel (1053) constitute a pressure-boosting air circuit (41); The inlet and outlet air connector (1021), the first trigger air channel (1023), the third trigger air channel (1032), the fourth trigger air channel (1034), the second trigger air channel (1025) and the fifth trigger air channel (1011) constitute a trigger air circuit (42); The first pressure relief air channel (1027) and the third pressure relief air channel (1028) constitute a first pressure relief air path (45); the second pressure relief air channel (1031) and the first pressure relief air channel (1027) constitute a second pressure relief air path (46); The inlet and outlet gas connector (1021), the first oxygen supply passage (1022), the second oxygen supply passage (1024), the third oxygen supply passage (1035), the fourth oxygen supply passage (1041), the pulse air hole (3021) and the pulse oxygen supply passage (1052) constitute the first oxygen supply passage (43); The inlet and outlet air connector (1021), the first trigger air channel (1023), the third trigger air channel (1032), the fifth oxygen supply channel (1042), the continuous air hole (3022) and the continuous oxygen supply channel (1051) constitute the second oxygen supply circuit (44).

10. A breathing synchronized pulse oxygen supply method, applied to the breathing synchronized pulse oxygen supply device as claimed in claim 9, characterized in that: When the adjusting ring (301) is in the first position, the following steps are included: S1, oxygen source gas enters the breathing synchronized pulse oxygen supply device from the oxygen inlet, respectively enters the pressure compensation gas circuit (41), the second oxygen supply circuit (44) and the first oxygen supply circuit (43), and enters the fourth chamber (54) through the pressure compensation gas circuit (41), and the main valve piston (206) is subjected to downward atmospheric pressure; the pressure compensation needle valve (209) is provided in the pressure compensation gas circuit (41), and the trigger sensitivity is adjusted by adjusting the pressure compensation degree; S2, under the downward pressure of the main valve piston (206) and the elastic force of the pilot valve stem spring (208), the lower end of the pilot valve stem (207) is in a state of being separated from the valve body middle plate (103); S3, when air is inhaled from the air inlet and outlet joint (1021), negative pressure gas enters the third chamber (53) through the trigger air path (42); S4, the air pressure in the third chamber (53) decreases, causing the pilot diaphragm (201) to move upward and break away from the seal with the third pressure relief airway (1028); S5, the gas in the second chamber (52) is discharged through the first pressure relief gas path (45), the gas pressure is reduced, and the main valve stem (204) moves upward; S6, the oxygen source gas enters the gas inlet and outlet joint (1021) through the first oxygen supply path (43) and the first chamber (51); S7, at the same time, since the oxygen gas in the fourth chamber (54) is discharged through the first gas outlet (2041), the second chamber (52) and the first pressure relief gas path (45), the gas pressure decreases, the main valve piston (206) moves upward, and the pilot valve stem (207) is sealed with the valve body middle plate (103); S8, after the inhalation is completed, the pilot diaphragm (201) is restored to be sealed with the third pressure relief air channel (1028), and the gas in the fifth chamber (55) is discharged through the first pressure relief air channel (1027); the oxygen gas enters the second chamber (52) through the pressure compensation air channel (41) and the first air outlet (2041), and the air pressure in the second chamber (52) increases, pushing the main valve stem (204) to return to the initial position, and the first oxygen supply channel (43) is closed; at the same time, When the air pressure in the fourth chamber (54) increases, the main valve piston (206) and the pilot valve stem (207) are pushed downward, the pilot valve stem (207) is restored to a state of being separated from the valve body middle plate (103), the trigger air path (42) is opened, and the gas in the sixth chamber (56) is discharged through the second pressure relief air path (46), and the pressure relief needle valve (210) in the second pressure relief air path (46) adjusts the exhaust speed to adjust the oxygen supply time; S9 realizes the function of triggering oxygen supply when inhaling and stopping oxygen supply when inhaling stops. When the adjusting ring (301) is in the second position, the following steps are included: The oxygen source gas enters the breathing synchronized pulse oxygen supply device from the oxygen inlet and passes through the second oxygen supply circuit (44) to achieve a continuous oxygen supply function.

Images