A breathing synchronized pulse oxygen supply device

Abstract

A respiratory synchronized pulse oxygen supply device of the present invention relates to the technical field of medical devices, including a valve body assembly, an oxygen-saving assembly, and a gear adjustment assembly. The valve body assembly consists of an upper cover, a valve body, a valve body middle plate, a valve body lower plate, and a pressure plate. The oxygen-saving assembly consists of a pilot diaphragm, a pilot spring, a main valve stem, a main valve stem spring, a main valve piston, a pilot stem, a pilot stem spring, a pressure-replenishing needle valve, a pressure-relief needle valve, and a plurality of sealing rings. The gear adjustment assembly consists of an adjustment ring and a gear plate. When the respiratory synchronized pulse oxygen supply device operates in a pulse oxygen supply mode, pulse oxygen supply is achieved. When it operates in a continuous oxygen supply mode, continuous oxygen supply is achieved. The present invention adopts a metal piston with a sealing ring structure, which is not easy to age and adopts a single interface form, which saves costs and improves compatibility. The oxygen output time during inhalation is adjusted by adjusting the needle valve, which is simple to operate and easy to control, thereby improving the uniformity and stability of the oxygen output time.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a respiratory synchronized pulse oxygen supply device. Background Art

[0002] Currently, the existing mechanical oxygen conservators on the market generally use a pilot diaphragm and a main valve diaphragm to control the opening and closing of the air circuit. Since the diaphragm is relatively thin, as the use time of the mechanical oxygen conservator continues to increase, the diaphragm may not be able to completely seal with the air circuit due to aging, and even the diaphragm may rupture.

[0003] Secondly, the duration of oxygen output by the mechanical oxygen conservator during inhalation is a key factor affecting the user experience. Currently, the existing oxygen conservators on the market generally cannot adjust the oxygen output duration.

[0004] Finally, the mechanical oxygen conservators currently on the market generally have two interfaces (trigger interface and oxygen outlet interface), and the nasal oxygen tubes used with them are double-connector nasal oxygen tubes. However, the common nasal oxygen tubes on the market are generally single-connector, and their compatibility is low. Summary of the Invention

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

[0006] The present invention provides the following technical solutions: In a first aspect, the present application provides a respiratory synchronized pulse oxygen supply device, comprising a valve body assembly and a gear adjustment assembly, wherein the valve body assembly is provided with an inlet and outlet air connector, a first oxygen supply circuit and a second oxygen supply circuit are formed inside the valve body assembly, the first oxygen supply circuit and the second oxygen supply circuit are both connected to the inlet and outlet air connector, the gear adjustment assembly comprises 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,

[0007] In the first position range, one of the plurality of pulse air holes is connected to the first oxygen supply path.

[0008] In the second position range, one of the plurality of continuous air holes is communicated with the second oxygen supply path.

[0009] Preferably, the valve body assembly includes an upper cover, a valve body, a valve body middle plate, a valve body lower plate, and a pressure plate, which are arranged in sequence from top to bottom. The side surface of the valve body is provided with an inlet and outlet air joint. The upper cover, valve body, valve body middle plate, and valve body lower plate are locked and connected by multiple fasteners. A mounting hole is provided in the center of the pressure plate, and a connecting part is provided at the center of the valve body lower plate. A threaded structure is provided on the outer surface of the connecting part. The pressure plate is sleeved outside the connecting part of the valve body lower plate and is locked and connected using a nut.

[0010] Preferably, an oxygen-saving component is provided inside the valve body assembly, and 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-compensating needle valve and a pressure-relief needle valve. The pilot diaphragm is provided between the upper cover and the valve body, one end of the pilot spring is abutted against the mounting groove provided in the upper cover, and the other end is abutted against the connecting portion provided at the center of the pilot diaphragm, the main valve stem spring, the main valve stem and the main valve piston are sequentially provided in the mounting hole provided in the center of the valve body from top to bottom, the upper end of the main valve stem is provided in the mounting groove provided in the valve body, the main valve stem spring is provided between the valve body and the main valve stem, and one end of the main valve stem spring is abutted against the mounting groove of the main valve stem The cam is pressed against the valve stem, and the other end is pressed against the mounting groove provided at the center of the upper end of the valve body. The main valve piston is provided in the mounting hole provided in the center of the valve body, and a mounting groove is provided at the center below the main valve piston. The lower end of the main valve stem is provided with a first air outlet, and the lower end of the pilot valve stem is provided in the mounting hole at the center of the valve body middle plate. The upper end of the pilot valve stem is provided in the mounting groove below the main valve piston, and a mounting groove is provided at the center of the upper surface of the valve body lower plate. The pilot valve stem spring is located between the pilot valve stem and the valve body lower plate, one end of which is pressed against the connecting part of the lower end of the pilot valve stem, and the other end is pressed against the mounting groove of the valve body lower plate. The pressure-compensating needle valve and the pressure-relief needle valve are conical structures, which are provided in the mounting groove on the side of the valve body middle plate.

[0011] Preferably, the oxygen-saving component also includes multiple sealing rings, the sealing ring is 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 ring is 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 ring is arranged on the outer peripheral surface of the main valve piston, for sealing between the main valve piston and the valve body, and the sealing ring is arranged on the outer surfaces of the upper and lower ends of the pilot valve stem, for sealing between the pilot valve stem and the middle plate of the valve body.

[0012] Preferably, the gear adjustment assembly is provided on the side of the valve body assembly, the gear plate is provided between the valve body lower plate and the pressure plate, and the adjustment ring is provided on the outer peripheral surface of the valve body, the valve body middle plate and the valve body lower plate.

[0013] Preferably, the main valve stem, valve body, main valve piston and pilot valve stem are made of metal, and the sealing ring is made of rubber.

[0014] 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 between 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; and a sixth chamber is formed between the main valve piston, the valve body and the valve body middle plate.

[0015] Preferably, the valve body is provided with the first oxygen supply channel, the second oxygen supply channel, the first trigger air channel, the second trigger air channel, the first pressure-compensating air channel and the first pressure-relief air channel, and the upper cover is provided with the fifth trigger air channel; the valve body middle plate is provided with the second pressure-relief air channel, the third trigger air channel, the second pressure-compensating air channel, the fourth trigger air channel and the third oxygen supply channel, the valve body lower plate is provided with the fourth oxygen supply channel, the fifth oxygen supply channel and the third pressure-compensating air channel, the pressure plate is provided with the continuous oxygen supply channel, the pulse oxygen supply channel and the fourth pressure-compensating air channel, the upper surface of the valve body is provided with the third pressure-relief air channel, and the lower end of the main valve stem is provided with the first air outlet.

[0016] Preferably, the first pressure-boosting airway, the second pressure-boosting airway, the third pressure-boosting airway, and the fourth pressure-boosting airway constitute a pressure-boosting air circuit;

[0017] The inlet and outlet air connectors, the first trigger airway, the third trigger airway, the fourth trigger airway, the second trigger airway and the fifth trigger airway constitute a trigger air circuit;

[0018] The first pressure relief air channel and the third pressure relief air channel constitute a first pressure relief air circuit; the second pressure relief air channel and the first pressure relief air channel constitute a second pressure relief air circuit;

[0019] The inlet and outlet joints, the first oxygen supply channel, the second oxygen supply channel, the third oxygen supply channel, the fourth oxygen supply channel, the pulse air hole and the pulse oxygen supply channel constitute the first oxygen supply channel;

[0020] The inlet and outlet air joints, the first trigger air channel, the third trigger air channel, the fifth oxygen supply channel, the continuous air holes and the continuous oxygen supply channel constitute the second oxygen supply circuit.

[0021] In a second aspect, the present application provides a respiratory synchronized pulse oxygen supply method, which comprises the following steps when the adjustment ring is in the first position:

[0022] S1, oxygen source gas enters the respiratory synchronized pulse oxygen supply device from the oxygen inlet, and respectively enters the pressure compensation gas circuit, the second oxygen supply circuit, and the first oxygen supply circuit. One of the oxygen source gas enters the fourth chamber through the pressure compensation gas circuit, and the main valve piston is subjected to downward atmospheric pressure; the pressure compensation needle valve is provided in the pressure compensation gas circuit, and the trigger sensitivity is adjusted by adjusting the pressure compensation degree;

[0023] S2, under 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 state of separation from the valve body middle plate;

[0024] S3, when air is inhaled from the air inlet and outlet connectors, negative pressure gas enters the third chamber through the trigger air path;

[0025] S4, the air pressure in the third chamber decreases, causing the pilot diaphragm to move upward and break away from the seal with the third pressure relief airway;

[0026] S5, the gas in the second chamber is discharged through the first pressure relief gas path, the gas pressure is reduced, and the valve stem of the main valve moves upward;

[0027] S6, the oxygen source gas enters the gas inlet and outlet joints through the first oxygen supply circuit and the first chamber;

[0028] At step S7, as the oxygen gas in the fourth chamber is discharged through the first air outlet, the second chamber, and the first pressure relief air path, the air pressure decreases, the main valve piston moves upward, and the pilot valve stem is sealed with the valve body middle plate;

[0029] S8, after the end of inhalation, the pilot diaphragm is restored to be sealed with the third pressure relief air channel, and the gas in the fifth chamber is discharged through the first pressure relief air channel; the oxygen gas enters the second chamber through the pressure compensation air channel and the first air outlet, the air pressure in the second chamber increases, pushing the main valve stem to return to its initial position, and the first oxygen supply circuit is closed; at the same time, due to the increase in air pressure in the fourth chamber, the main valve piston and the pilot valve stem are pushed downward, and the pilot valve stem is restored to a state of separation from the valve body middle plate, the trigger air circuit is opened, and the gas in the sixth chamber is discharged through the second pressure relief air channel. The pressure relief needle valve in the second pressure relief air channel adjusts the exhaust speed to adjust the oxygen supply time;

[0030] S9 realizes the function of triggering oxygen supply when inhaling and stopping oxygen supply when inhaling stops.

[0031] When the adjusting ring is in the second position, the method comprises the following steps:

[0032] The oxygen source gas enters the respiratory synchronized pulse oxygen supply device from the oxygen inlet and passes through the second oxygen supply circuit to achieve a continuous oxygen supply function.

[0033] The present invention adopts a metal piston and a sealing ring structure to replace the traditional main valve diaphragm structure. Since the metal piston and the sealing ring are less susceptible to aging than the diaphragm, the service life of the equipment can be extended; the user connection of the present invention adopts a single interface form, which not only saves costs compared to the double interface form, but also can be adapted to the common single-connector nasal oxygen tube on the market. Users can replace the nasal oxygen tube by themselves, avoiding the risk of infection due to long-term use and improving compatibility; the user connection adopts a single interface form, and its internal air circuit is completely different from the traditional double interface form. The triggering air circuit and the oxygen outlet circuit are independent of each other, which greatly improves the accuracy of the air circuit opening and closing control; the present invention is provided with a needle valve structure, and the oxygen outlet time during inhalation can be adjusted by the pressure relief needle valve. The operation is simple and easy to control, which improves the uniformity and stability of the oxygen outlet time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is an overall structural diagram of an exemplary embodiment of the present invention.

[0035] Figure 2 for Figure 1 Schematic diagram of the AA section view.

[0036] Figure 3 for Figure 1 Schematic diagram of the cross-section in the BB direction.

[0037] Figure 4 for Figure 1 Schematic diagram of the EE section.

[0038] Figure 5 Schematic diagram of a shift lever according to an exemplary embodiment of the present invention.

[0039] Figure 6 Schematic diagram of the gas flow in the trigger gas path of an exemplary embodiment of the present invention.

[0040] Figure 7 This is a schematic diagram of the gas flow in the oxygen supply circuit of an exemplary embodiment of the present invention.

[0041] Figure 8 Schematic diagram of the gas flow in the pressure compensation gas circuit according to an exemplary embodiment of the present invention.

[0042] Figure 9 This is a schematic diagram of the gas flow in the first pressure relief gas path of an exemplary embodiment of the present invention.

[0043] Figure 10 This is a schematic diagram of the gas flow in the second pressure relief gas path of an exemplary embodiment of the present invention.

[0044] Figure 11 It is a schematic diagram of a principle of an exemplary embodiment of the present invention.

[0045] in:

[0046] 101-Upper cover; 1011-Fifth trigger airway; 102-Valve body; 1021-Inlet and outlet joints; 1022-First oxygen supply channel; 1023-First trigger airway; 1024-Second oxygen supply channel; 1025-Second trigger airway; 1026-First pressure-compensating airway; 1027-First pressure-relief airway; 1028-Third pressure-relief airway; 103-Valve body middle plate; 1031-Second pressure-relief airway Airway; 1032 - third trigger airway; 1033 - second booster airway; 1034 - fourth trigger airway; 1035 - third oxygen supply channel; 104 - valve body lower plate; 1041 - fourth oxygen supply channel; 1042 - fifth oxygen supply channel; 1043 - third booster airway; 105 - pressure plate; 1051 - continuous oxygen supply channel; 1052 - pulse oxygen supply channel; 1053 - fourth booster airway;

[0047] 201-pilot diaphragm; 202-pilot spring; 204-main valve stem; 2041-first air outlet; 205-main valve stem spring; 206-main valve piston; 207-pilot valve stem; 208-pilot valve stem spring; 209-pressure replenishing needle valve; 210-pressure relief needle valve; 211-sealing ring;

[0048] 301-adjusting ring; 302-shift plate; 3021-pulse air hole; 3022-continuous air hole;

[0049] 41 - pressure-compensating air circuit; 42 - triggering air circuit; 43 - first oxygen supply circuit; 44 - second oxygen supply circuit; 45 - first pressure-relieving air circuit; 46 - second pressure-relieving air circuit;

[0050] 51-first chamber; 52-second chamber; 53-third chamber; 54-fourth chamber; 55-fifth chamber; 56-sixth chamber. DETAILED DESCRIPTION

[0051] The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be understood as limiting the present invention. In the present invention, the same reference numerals represent the same or similar components.

[0052] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided to illustrate only some of the many possible ways to implement the methods, devices, and / or systems described herein, which will become clear after understanding the disclosure of the present invention.

[0053] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or sections, these members, components, regions, layers, or sections should not be limited by these terms. Instead, these terms are only used to distinguish one member, component, region, layer, or section from another member, component, region, layer, or section.

[0054] In the specification, when an element (such as a layer, region, or substrate) is described as being “on,” “connected to,” or “coupled to” another element, the element may be directly “on,” “connected to,” or “coupled to” the other element, or one or more other elements may be present therebetween. Conversely, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, there may be no other elements present therebetween.

[0055] The terms used herein are only used to describe various examples and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular is intended to include the plural. The terms "comprise," "include," and "have" indicate the presence of the recited features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0056] In order to enable those skilled in the art to use the contents of the present invention, the following exemplary embodiments may be provided in conjunction with specific application scenarios, specific system, device and component parameters, and specific connection methods. However, for those skilled in the art, these embodiments are only examples, and the general principles defined herein can be applied to other embodiments and application scenarios without departing from the spirit and scope of the present invention.

[0057] According to an exemplary embodiment of the present invention: Figure 1-Figure 5 and Figure 11 As shown, a respiratory synchronized 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.

[0058] The valve body assembly consists of 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; the upper cover 101 is arranged above the valve body 102, the valve body middle plate 103, the valve body lower plate 104 and the pressure plate 105 are arranged below the valve body 102 in sequence from top to bottom, and 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. For example, the fasteners are screws, and a mounting hole is provided in 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 on the outside of the connecting portion of the valve body lower plate 104 and is locked and connected with a nut. The side surface of the valve body 102 is provided with an inlet and outlet air joint 1021.

[0059] The oxygen-saving component consists 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-compensating 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 by the rubber sealing ring 211 is less prone to aging than traditional diaphragms, thereby extending the service life of the equipment.

[0060] The pilot diaphragm 201 is arranged between the upper cover 101 and the valve body 102, and the pilot spring 202 is arranged between the upper cover 101 and the pilot diaphragm 201. One end of the pilot spring 202 is against the mounting groove provided in the upper cover 101, and the other end is against the connecting portion provided at the center of the pilot diaphragm 201; the main valve stem spring 205, the main valve stem 204, and the main valve piston 206 are arranged in the mounting hole provided in the center of the valve body 102 from top to bottom, the upper end of the main valve stem 204 is arranged in the mounting groove provided in the valve body 102, and the lower end of the main valve stem 204 is located in the central mounting hole of the valve body 102, the main valve stem spring 205 is arranged between the valve body 102 and the main valve stem 204, and one end of the main valve stem spring 205 is against the main valve stem 204 The two ends of the pilot valve stem 207 are respectively arranged in the mounting hole at the center of the valve body middle plate 103, and the upper end of the pilot valve stem 207 is arranged in the mounting groove below the main valve piston. 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 part of 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 compensation needle valve 209 and the pressure relief needle valve 210 are respectively arranged in the side mounting grooves of the valve body middle plate 103.

[0061] A sealing ring 211 is provided on the outer surface of the upper end of the main valve stem 204, which is used to seal between the main valve stem 204 and the valve body 102. A sealing ring 211 is provided on the outer surface of the lower end of the main valve stem 204, which is used to seal between the main valve stem 204 and the valve body 102. A sealing ring 211 is provided on the outer peripheral surface of the main valve piston 206, which is used to seal between the main valve piston 206 and the valve body 102. Sealing rings 211 are respectively provided on the outer surfaces of the upper end and the lower end of the pilot valve stem 207, which are used to seal between the pilot valve stem 207 and the valve body middle plate 103.

[0062] The gear adjustment assembly consists of an adjustment ring 301 and a gear plate 302. The gear plate 302 is arranged between the valve body lower plate 104 and the pressure plate 105. The adjustment ring 301 is sleeved on the outer circumferential surfaces of the valve body 102, the valve body middle plate 103 and the valve body lower plate 104.

[0063] Illustratively, the adjustment ring 301 can drive the shift 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 multiple pulse air holes 3021 can be connected to the first oxygen supply circuit 43, and in the second position range, one of the multiple continuous air holes 3022 can be connected to the second oxygen supply circuit 44.

[0064] Preferably, the adjustment ring 301 is rotatably fixed on the valve body 102. Optionally, the inner periphery of the adjustment ring 301 is provided with an annular protrusion, and the outer periphery of the valve body 102 is provided with an annular groove. When the two are matched, the annular protrusion is placed in the annular groove to achieve a rotatable connection. The adjustment ring 301 can drive the shift plate 302 to rotate together.

[0065] Gas circuit description:

[0066] like Figures 1-11 As 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 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.

[0067] The valve body 102 is provided with 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-compensating air channel 1026, and a first pressure-relieving 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-relieving air channel 1031, a third trigger air channel 1032, a second pressure-compensating air channel 1033, a fourth trigger air channel 1034, and a third oxygen supply channel 1035; the valve body lower plate 104 is provided with a fourth pressure-relieving air channel 1031; the valve body lower plate 104 is provided with a fourth pressure-relieving air channel 1032; the valve body lower plate 104 is provided with a fourth pressure-relieving air channel 1033; the valve body lower plate 104 is provided with a fourth pressure-relieving air channel 1034; the valve body lower plate 104 is provided with a fourth pressure-relieving air channel 1031 ... Oxygen supply channel 1041, fifth oxygen supply channel 1042, third pressure-compensating air channel 1043; the shift plate 302 is provided with multiple pulse air holes 3021, the aperture of which gradually increases from small to large; the shift plate 302 is provided with multiple continuous air holes 3022, the aperture of which gradually increases from small to large; the interior of the pressure plate 105 is provided with a continuous oxygen supply channel 1051, a pulse oxygen supply channel 1052, and a fourth pressure-compensating air channel 1053; the upper surface of the valve body 102 is provided with a third pressure relief air channel 1028; the lower end of the main valve stem 204 is provided with a first air outlet 2041.

[0068] The first pressure-compensating air channel 1026 , the second pressure-compensating air channel 1033 , the third pressure-compensating air channel 1043 , and the fourth pressure-compensating air channel 1053 form a pressure-compensating air circuit 41 ;

[0069] 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;

[0070] The inlet and outlet gas connectors 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 hole 3021 and the pulse oxygen supply channel 1052 constitute the first oxygen supply circuit 43;

[0071] The inlet and outlet gas connector 1021, the first trigger gas channel 1023, the third trigger gas channel 1032, the fifth oxygen supply channel 1042, the continuous gas hole 3022 and the continuous oxygen supply channel 1051 constitute a second oxygen supply circuit 44;

[0072] The first pressure relief air channel 1027 and the third pressure relief air channel 1028 constitute a first pressure relief air circuit 45 ; the second pressure relief air channel 1031 and the first pressure relief air channel 1027 constitute a second pressure relief air circuit 46 .

[0073] Working principle:

[0074] Initial state: under the elastic force of the pilot spring 202, the pilot diaphragm 201 is tightly fitted with the third pressure relief air channel 1028 of the valve body 102; the oxygen from the oxygen source enters the fourth chamber 54 through the pressure-compensating air path 41, and then enters the second chamber 52 through the first air outlet 2041. The main valve stem 204 is in a tightly fitted state with the valve body 102 under the pressure of the oxygen and the main valve stem spring 205; under the pressure of the oxygen, the main valve piston 206 is in a position below the active area, pushing the pilot valve stem 207 to move downward, and the sealing ring 211 at its lower end is separated from the valve body middle plate 103, thereby triggering the air path 42 to open. At this time, the pilot valve stem spring 208 is in a compressed state.

[0075] When the rotating adjustment ring 301 is in the first position, one of the multiple pulse air holes 3021 on the shift plate 302 is connected to the first oxygen supply circuit 43, and the pulse oxygen supply mode is triggered at this time; by rotating the shift plate 302, the pulse air holes 3021 with different apertures can be adjusted to be connected to the first oxygen supply circuit 43.

[0076] When the user inhales, since the pilot valve stem 207 is in a state of separation from the valve body middle plate 103, the trigger air path 42 is in an open state, and the inhalation negative pressure enters the third chamber 53 through the trigger air path 42. Under the action of negative pressure, the pilot diaphragm 201 is separated from the third pressure relief airway 1028, so that the gas in the second chamber 52 is discharged through the third pressure relief airway 1028 and the first pressure relief airway 1027, the air pressure is reduced, the main valve stem 204 moves upward, and is separated from the valve body 102. The first oxygen supply path 43 is opened to realize oxygen supply. Since the oxygen in the fourth chamber 54 is discharged through the first air outlet 2041, the second chamber 52 and the first pressure relief airway 45 and the pressure is reduced, the main valve piston 206 moves upward, and the pilot valve stem 207 moves upward and seals with the valve body middle plate 103, thereby triggering the air path 42 to close, and the pilot diaphragm 201 and the valve body 102 are separated. The third pressure relief airway 1028 returns to a tightly fitting state, and the gas in the fifth chamber 55 is discharged through the first pressure relief airway 1027; the oxygen from the oxygen source enters the fourth chamber 54 through the pressure-compensating airway 41, and enters the second chamber 52 through the first air outlet 2041 at the lower end of the main valve stem 204, so that the pressure in the second chamber 52 increases, pushing the main valve stem 204 to move downward until it is sealed with the valve body 102, and at the same time, the main valve piston 206 is pushed downward due to the increase in air pressure in the fourth chamber 54, and the gas in the sixth chamber 56 is discharged through the second pressure relief airway 1031, and 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-time inhalation oxygen supply is completed, realizing the inhalation triggered pulse oxygen supply function.

[0077] When the rotating adjustment ring 301 is in the second position, one of the multiple continuous air holes 3022 on the shift plate 302 is connected to the second oxygen supply circuit 44, triggering the continuous oxygen supply mode; by rotating the shift plate 302, the continuous air holes 3022 of different apertures can be adjusted to be connected to the second oxygen supply circuit 44.

[0078] The oxygen from the oxygen source is directly provided to the user through the second oxygen supply circuit 44, thereby realizing a continuous mode oxygen supply function.

[0079] The pressure-compensating air circuit 41 is provided with a pressure-compensating needle valve 209, which is used for triggering sensitivity adjustment after installation. Since the tip of the pressure-compensating needle valve 209 is a cone structure, the pressure-compensating needle valve 209 is adjusted to control the opening degree of the pressure-compensating air circuit 41, thereby balancing the force exerted on the main valve stem 204, so that the main valve stem 204 can move up and down during breathing and thus control the opening and closing of the oxygen supply circuit; the second pressure relief air channel 1031 is provided with a pressure relief needle valve 210, which is used for triggering oxygen output duration adjustment after installation. The tip of the pressure relief needle valve 210 is also a cone structure. The pressure relief needle valve 210 is adjusted to control the exhaust speed of the second pressure relief air channel 1031, thereby controlling the speed of the closing process of the main valve stem 204 and the valve body 102, thereby realizing the adjustment of the oxygen output duration.

[0080] According to an exemplary embodiment of the present invention, Figures 1-11 As shown, a respiratory synchronized pulse oxygen supply method, when the adjustment ring 301 is in the first position, includes the following steps:

[0081] S1: Oxygen source gas enters the respiratory synchronized pulse oxygen supply device of the present application from the oxygen inlet, and respectively enters the pressure compensation gas circuit 41, the second oxygen supply circuit 44, and the first oxygen supply circuit 43. Then, it enters the fourth chamber 54 through the pressure compensation gas circuit 41. The main valve piston 206 is subjected to downward atmospheric pressure. A pressure compensation needle valve 209 is provided in the pressure compensation gas circuit 41. By adjusting the pressure compensation level, the trigger sensitivity can be adjusted.

[0082] 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 separated from the valve body middle plate 103;

[0083] S3, when air is inhaled from the air inlet and outlet connector 1021, the negative pressure gas enters the third chamber 53 through the trigger air path 42;

[0084] 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 air channel 1028;

[0085] S5, the gas in the second chamber 52 is discharged through the first pressure relief gas path 45 and the pressure is reduced, and the main valve stem 204 moves upward;

[0086] S6, the oxygen source gas enters the gas inlet and outlet connector 1021 through the first oxygen supply path 43 and the first chamber 51;

[0087] At step S7, 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, and 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.

[0088] 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 its initial position, and the first oxygen supply path 43 is closed; at the same time, due to the increase in the air pressure in the fourth chamber 54, the main valve piston 206 and the pilot valve stem 207 are pushed downward, and the pilot valve stem 207 is restored to a state of separation from the valve body middle plate 103, triggering the air path 42 to open, and the gas in the sixth chamber 56 is discharged through the second pressure relief air channel 46, and the pressure relief needle valve 210 in the second pressure relief air channel 46 adjusts the exhaust speed to adjust the oxygen supply time;

[0089] S9, realizes the function of triggering oxygen supply when inhalation and stopping oxygen supply when inhalation stops.

[0090] When the adjusting ring 301 is in the second position, the following steps are included:

[0091] The oxygen source gas enters the respiratory synchronized pulse oxygen supply device from the oxygen inlet and is directly provided to the user through the second oxygen supply circuit 44, thereby realizing the continuous oxygen supply function.

[0092] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to the embodiments and combinations of elements may be made without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A respiratory synchronized pulse oxygen supply device, characterized in that: The invention comprises a valve body assembly and a gear adjustment assembly, wherein the valve body assembly 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 assembly, and the first oxygen supply circuit (43) and the second oxygen supply circuit (44) are both communicated with the inlet and outlet air joint (1021), and the gear adjustment assembly comprises an adjustment ring (301) and a gear plate (302), wherein the gear plate (302) is provided with a plurality of pulse air holes (3021) and a plurality of continuous air holes (3022), and 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) 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). 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). A threaded structure is provided on the outer surface of the connecting portion. The pressure plate (105) is sleeved on the outside of the connecting portion of the valve body lower plate (104) and is locked and connected using a nut. An oxygen-saving component is provided inside the valve body assembly, and the oxygen-saving component includes 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 provided between the upper cover (101) and the valve body (102), and one end of the pilot spring (202) is connected to the upper cover (101). The main valve stem spring (205), the main valve stem (204), and the main valve piston (206) are sequentially arranged in the 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 the 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) is abutted against the mounting groove of the main valve stem (204), and the other end is abutted against the mounting groove set at the center of the upper end of the valve body (102). The main valve piston (206) is set in the mounting hole set in the center of the valve body (102). A mounting groove is set 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 set 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), with one end thereof abutting against the connecting portion at the lower end of the pilot valve stem (207), and the other end abutting 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 a conical structure and are provided in the mounting groove on the side of the valve body middle plate (103). 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-compensating air channel (1026), and a first pressure-relieving air channel (1027) inside. The upper cover (101) is provided with a fifth trigger air channel (1011) inside. The valve body middle plate (103) is provided with a second pressure-relieving air channel (1031), a third trigger air channel (1032), a second pressure-compensating air channel ( 1033), a fourth trigger airway (1034), and a third oxygen supply channel (1035); a fourth oxygen supply channel (1041), a fifth oxygen supply channel (1042), and a third pressure-compensating airway (1043) are provided inside the lower plate (104) of the valve body; a continuous oxygen supply channel (1051), a pulse oxygen supply channel (1052), and a fourth pressure-compensating airway (1053) are provided inside the pressure plate (105); and a third pressure-relieving airway (1028) is provided on the upper surface of the valve body (102).

2. The respiratory synchronized pulse oxygen supply device according to claim 1, characterized in that: The oxygen-saving component further includes 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 outer surfaces of the upper end and 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).

3. The respiratory synchronized pulse oxygen supply device according to claim 2, characterized in that: The shift adjustment assembly is provided on the side of the valve body assembly, the shift plate (302) is provided 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).

4. The respiratory synchronized pulse oxygen supply device according to claim 3, 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.

5. The respiratory synchronized pulse oxygen supply device according to claim 4, 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).

6. The respiratory synchronized pulse oxygen supply device according to claim 5, characterized in that: The first pressure-compensating air channel (1026), the second pressure-compensating air channel (1033), the third pressure-compensating air channel (1043), and the fourth pressure-compensating air channel (1053) constitute a pressure-compensating air circuit (41); The inlet and outlet air connectors (1021), the first trigger airway (1023), the third trigger airway (1032), the fourth trigger airway (1034), the second trigger airway (1025), and the fifth trigger airway (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 connectors (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 connectors (1021), the first trigger airway (1023), the third trigger airway (1032), the fifth oxygen supply channel (1042), the continuous air holes (3022) and the continuous oxygen supply channel (1051) constitute the second oxygen supply circuit (44).

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