Oxygen supply valve and oxygen generator

Abstract

The utility model relates to the technical field of oxygen generators, in particular to an oxygen supply valve and an oxygen generator. The oxygen supply valve comprises a valve seat, a first valve control piece, a second valve control piece and a first air inlet channel, an inlet is connected with a first oxygen conveying end, and an outlet is connected with a first air inlet of the first valve control piece; an inlet of the second gas inlet channel is connected with a second oxygen conveying end, and an outlet is connected with a third gas inlet of the second valve control piece; an inlet of the air outlet channel is connected with a second air outlet of the second valve control piece, and an outlet is used for being connected with a user oxygen demand end; an inlet of the transition channel is connected with a first air outlet of the first valve control part, and an outlet of the transition channel is connected with a fourth air inlet of the second valve control part; one end of the first detection channel is connected with a second air inlet of the first valve control piece, and the other end of the first detection channel is connected with a respiration sensor; the utility model further provides an oxygen generator using the oxygen supply valve. The structure is compact, the layout is reasonable, and the miniaturization of the oxygenerator is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen concentrators, in particular to an oxygen supply valve and an oxygen concentrator. Background Art

[0002] With the development of science and technology, oxygen therapy is becoming more and more popular among the public, and oxygen concentrators have emerged. Oxygen concentrators generally include two oxygen supply modes, namely pulse oxygen supply mode and continuous oxygen supply mode. The pulse oxygen concentrator mainly detects the user's breathing state through the breathing detection module, and outputs oxygen when the user inhales, with a high oxygen utilization rate; the continuous oxygen concentrator provides oxygen throughout the user's breathing process, that is, oxygen is output when the user inhales and exhales, and the oxygen utilization rate is low.

[0003] At present, most of the existing oxygen concentrators are single-mode oxygen concentrators, and users cannot choose the appropriate oxygen supply mode according to their own situation. For example, when going out, in order to extend the oxygen supply time, you can choose the pulse oxygen supply mode; when sleeping at home, in order to ensure that the user does not lack oxygen during sleep, you can choose the continuous oxygen supply mode. Currently, most of the oxygen concentrators on the market are single-mode oxygen concentrators that cannot meet the user's oxygen needs in different life scenarios. In order to be able to use them in different life scenarios, some users will choose to buy two oxygen concentrators, a pulse portable oxygen concentrator to carry when going out, and a continuous oxygen concentrator to use when sleeping at home. However, this not only increases the user's cost of living, but also increases the floor space occupied by the two oxygen concentrators, which is not conducive to the placement and storage of the oxygen concentrators.

[0004] In order to solve this problem, some researchers have designed to combine the continuous oxygen supply circuit and the pulse oxygen supply circuit in one oxygen concentrator by adding pipelines and valves through the connection of multiple pipelines and valves, so as to meet the user's needs for different oxygen supply modes. However, the combination of multiple pipelines and components will increase the internal volume of the oxygen concentrator, which is not conducive to the miniaturization of the oxygen concentrator; the connection method of multiple pipelines between components also increases the risk of oxygen leakage; at the same time, since the continuous oxygen supply circuit and the pulse oxygen supply circuit are connected by a pipeline between the tee and the air outlet nozzle, it is easy to cause oxygen reflux, affecting the service life of the oxygen concentrator.

[0005] In view of the above problems, it is necessary to provide a reasonable solution to enable users to actively control the different oxygen supply modes of the oxygen concentrator, so that it can not only meet the user's independent choice of two different oxygen supply modes, facilitate the user's use in different life scenarios, reduce oxygen leakage, but also meet the user's demand for miniaturization of the oxygen concentrator. Utility Model Content

[0006] In view of the above deficiencies in the prior art, the utility model provides an oxygen supply valve and an oxygen concentrator, which integrate a continuous oxygen supply circuit and a pulse oxygen supply circuit in one valve seat by arranging multiple different channels on the valve seat, and arranging a first and a second valve control component connected to the valve seat to provide pulse oxygen or continuous oxygen to the user, and allocate the pulse oxygen supply circuit according to the user's breathing state, thereby realizing the user's active selection of different oxygen supply modes and reducing the risk of oxygen leakage; at the same time, the oxygen supply valve has a compact structure and a reasonable layout, which is conducive to the miniaturization of the oxygen concentrator.

[0007] The technical solution adopted by the utility model to solve the technical problem is:

[0008] In one aspect, the utility model provides an oxygen supply valve, comprising:

[0009] valve seats; and

[0010] The first and second valve control components are fixedly connected or detachably connected to the valve seat, the first and second valve control components are not in the same plane, and the first and second valve control components respectively include at least two air inlets and at least one air outlet, for realizing passage switching between the air inlets and the air outlets; and

[0011] a first air inlet passage, which is disposed in the valve seat and extends outward to the outside of the valve seat, wherein the inlet is connected to the first oxygen delivery end, and the outlet is connected to the first air inlet of the first valve control element, and the first air inlet passage is L-shaped, and the extension lines of the inlet and the outlet are perpendicular to each other; and

[0012] a second air inlet passage, which is disposed in the valve seat and extends outward to the outside of the valve seat, wherein the inlet is connected to the second oxygen delivery end and the outlet is connected to the third air inlet of the second valve control element; and

[0013] an air outlet channel, which is arranged in the valve seat and extends outward to the outside of the valve seat, wherein the inlet is connected to the second air outlet of the second valve control member, and the outlet is used to be connected to the user end; and

[0014] a transition channel, disposed in the valve seat, with an inlet connected to the first air outlet of the first valve control component and an outlet connected to the fourth air inlet of the second valve control component; and

[0015] A first detection channel is arranged in the valve seat and extends outward to the outside of the valve seat, one end of which is connected to the second air inlet of the first valve control component, and the other end of which is connected to the breathing sensor;

[0016] The first and second air inlets of the first valve control component are not connected to the first air outlet at the same time; the third and fourth air inlets of the second valve control component are not connected to the second air outlet at the same time.

[0017] Furthermore, the first and second valve control components are both normally closed valves. When the first valve control component is opened, the first air inlet channel is connected to the transition channel; when the second valve control component is opened, the second air inlet channel is connected to the air outlet channel.

[0018] Furthermore, it also includes:

[0019] a pressure reducing passage, disposed in the valve seat and extending outward to the outside of the valve seat;

[0020] An extension channel is arranged inside the valve seat, one end of which is communicated with the bent portion of the first air inlet channel, and the other end of which is communicated with the pressure reducing channel;

[0021] The inlet of the pressure reducing channel is communicated with the extension channel, and the outlet is connected with the pressure reducing valve.

[0022] Furthermore, it also includes a decompression chamber, which is arranged in the valve seat, and the side surface of the decompression chamber at one end close to the interior of the valve seat is connected to the extension channel, one end of the extension channel is connected to the bending portion of the first air inlet channel, and the other end is connected to the decompression chamber, and the other end of the decompression chamber extends to be flush with the side wall surface of the valve seat and is open toward the outer surface of the valve seat, and the decompression valve is arranged at the end of the decompression chamber away from the extension channel, and the decompression valve is fixedly connected or detachably connected to the decompression chamber.

[0023] Further, a pressure relief component is provided on the first detection channel, or a pressure relief channel is provided on the first detection channel, and the pressure relief component is provided in the pressure relief channel.

[0024] Furthermore, the length of the decompression chamber is greater than the length of the air inlet end of the decompression valve, the air inlet end of the decompression valve is provided with an external thread, the inner wall of the decompression chamber is provided with an internal thread extending inward along the opening end, the internal thread matches the external thread, and the decompression valve is threadedly connected to the decompression chamber.

[0025] Furthermore, a sealing member is provided between the pressure reducing chamber and the pressure reducing valve.

[0026] Furthermore, it also includes a second detection channel, which is arranged in the valve seat and extends outward to the outside of the valve seat. The inlet of the second detection channel is arranged on the first air inlet channel, or is arranged at the end of the decompression chamber away from the decompression valve, and its outlet is connected to the pressure sensor.

[0027] Furthermore, the second detection channel is communicated with the decompression chamber, and the second detection channel is arranged in parallel with the extension channel.

[0028] On the other hand, the utility model also provides an oxygen concentrator, comprising a control unit, an oxygen concentrator, a pressure reducing valve, a flow valve and the oxygen supply valve as described above; the oxygen concentrator is used to generate oxygen and supply the oxygen to a user through the oxygen supply valve; the oxygen supply valve is used to respond to the control instruction of the control unit to provide pulse oxygen or continuous oxygen to the user, and to collect air pressure information and send it to the control unit, and to allocate the pulse oxygen supply circuit in response to the control instruction sent by the control unit; the flow valve and / or the pressure reducing valve is used to be connected to the oxygen supply valve to provide continuous oxygen to the user; the control unit is communicatively connected to the oxygen concentrator, the pressure reducing valve, the flow valve and the oxygen supply valve respectively.

[0029] The utility model has the following beneficial effects: the utility model realizes the integration of continuous oxygen supply mode and pulse oxygen supply mode on the oxygen supply valve by setting the valve seat to be connected with the first and second valve control components, and controlling the on-off between different gas paths through the first and second valve on-off control components, and realizes the active control of the two oxygen supply paths by setting the first and second valve control components, which can effectively prevent the backflow of oxygen and is beneficial to prolonging the service life of the oxygen generator; the first detection channel is set to be connected with the breathing sensor for detecting the breathing state of the user, and the pulse oxygen supply path is allocated according to the monitoring of the breathing state of the user, that is, oxygen is supplied when the user inhales, and oxygen supply is stopped when the user exhales; by setting different gas paths on the valve seat, the setting of pipelines between components is reduced, which can effectively reduce the leakage of oxygen; at the same time, the oxygen supply valve has a compact structure and a reasonable layout, which is beneficial to the miniaturization of the oxygen generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of some oxygen supply valves provided in the embodiments of the utility model;

[0031] Figure 2 It is a schematic diagram of some valve seat structures in the embodiments provided by the utility model;

[0032] Figure 3 It is a schematic diagram of the cross-sectional structure of some valve seats in the embodiments provided by the utility model;

[0033] Figure 4 It is a schematic diagram of the cross-sectional structure of some valve seats in the embodiments provided by the utility model;

[0034] Figure 5 It is a schematic diagram of the cross-sectional structure of some valve seats in the embodiments provided by the utility model;

[0035] Figure 6 It is a schematic diagram of the cross-sectional structure of some valve seats in the embodiments provided by the utility model;

[0036] Figure 7It is a schematic structural diagram of the combined relationship between a pressure reducing valve and an oxygen supply valve in the embodiment provided by the utility model;

[0037] Figure 8 The utility model is provided in the embodiment of the present invention. The utility model is provided in the embodiment of the present invention. The utility model is provided in the embodiment of the present invention.

[0038] In the figure, 1, valve seat 2, first valve control component 3, second valve control component 4, pressure reducing valve 11, first air inlet channel 12, second air inlet channel 13, air outlet channel 14, first detection channel 15, pressure reducing channel 15', pressure reducing chamber 16, second detection channel 17, pressure relief channel 18, extension channel 19, transition channel. DETAILED DESCRIPTION

[0039] The utility model is further described below in conjunction with the accompanying drawings.

[0040] Example:

[0041] like Figures 1 to 8 As shown, the oxygen supply valve of the utility model comprises a valve seat 1 and first and second valve control components, wherein the first valve control component 2 and the second valve control component 3 are respectively fixedly connected or detachably connected to the valve seat 1, such as by gluing; or threaded holes are respectively provided on the first valve control component 2 and the second valve control component 3, and they are fixed to the valve seat 1 by screws; furthermore, a cavity can be provided on the valve seat 1, and the first and second valve control components are respectively fixed in the cavity of the valve seat 1. In order to make the structure of the oxygen supply valve more compact and the layout more reasonable, the first and second valve control components are not in the same plane. In one embodiment, as Figure 1 As shown, in order to shorten the length of each channel in the valve seat 1 as much as possible and make the structure of the valve seat 1 more compact, the first and second valve control components are respectively arranged on two adjacent surfaces of the valve seat 1, which is conducive to the miniaturization of the valve seat 1.

[0042] The first valve control component 2 includes at least two air inlets and at least one air outlet, and the second valve control component 3 also includes at least two air inlets and at least one air outlet. The first and second valve control components are used to realize the passage switching between the air inlets and the air outlets. In one embodiment, the first and second valve control components are two-position three-way valves. The first valve control component 2 includes a first air inlet, a second air inlet and a first air outlet. The first air outlet can be connected to the first air inlet or the second air inlet, but the first air inlet and the second air inlet cannot be connected to the first air outlet at the same time; the second valve control component 3 includes a third air inlet, a fourth air inlet and a second air outlet. The second air outlet can be connected to the third air inlet or the fourth air inlet, but the third air inlet and the fourth air inlet are not connected to the second air outlet at the same time.

[0043] The first air inlet channel 11 is arranged in the valve seat 1 and extends outward to the outside of the valve seat 1. The inlet of the first air inlet channel 11 is used to connect with the first oxygen delivery end, and the oxygen produced by the oxygen production unit is delivered to the valve seat 1 through the first air inlet channel 11. Here, the first oxygen delivery end can be the oxygen outlet end of the oxygen production unit, or one of the ports of the three-way piece connected to the oxygen outlet end of the oxygen production unit. The oxygen produced by the oxygen outlet end of the oxygen production unit is delivered to the inlet of the first air inlet channel 11 through one port of the three-way piece. The outlet of the first air inlet channel 11 is connected to the first air inlet of the first valve control component 2, and oxygen enters the valve seat 1 through the inlet of the first air inlet channel 11. In order to make the structure of the oxygen supply valve more compact and beautiful, the first air inlet channel 11 is L-shaped, and the extension lines of its inlet and outlet are perpendicular to each other.

[0044] The second air inlet channel 12 is arranged in the valve seat 1 and extends outward to the outside of the valve seat 1, with its inlet connected to the second oxygen delivery end, and its outlet connected to the third air inlet of the second valve control component 3. The second oxygen delivery end may be another port of a three-way piece connected to the oxygen outlet end of the oxygen production unit. In one embodiment, a pressure reducing valve 4 is arranged on the oxygen outlet end of the oxygen production unit, and oxygen first passes through the pressure reducing valve 4 arranged on the oxygen outlet end and then is connected to the three-way piece, one port of the three-way piece is connected to the first air inlet channel 11, and the other port of the three-way piece is connected to the second air inlet channel 12. Alternatively, the second oxygen delivery end may also be an outlet end of a valve such as a flow valve or a pressure reducing valve 4 through which oxygen flows, that is, the oxygen produced by the oxygen production unit passes through a valve such as a flow valve or a pressure reducing valve 4 before entering the second air inlet channel 12. In one embodiment, the outlet end of the flow valve may be connected to the second air inlet channel 12. For example, the oxygen produced by the oxygen production unit first passes through the pressure reducing valve 4 to reduce the pressure and stabilize the pressure of the oxygen produced by the oxygen production unit, and then passes through the flow valve, and the oxygen is adjusted to the oxygen outlet flow required by the user through the flow valve, and then input into the valve seat 1 through the second air inlet channel 12; or, in another embodiment, the outlet end of the pressure reducing valve 4 is connected to the second air inlet channel 12 (the pressure reducing valve 4 is not arranged on the oxygen outlet end of the oxygen production unit), and the oxygen produced by the oxygen production unit enters the second air inlet channel 12 after the pressure reduction and pressure stabilization of the pressure reducing valve 4, so as to reduce the pressure fluctuation when the user breathes oxygen. In a specific embodiment, a flow valve is also provided, and the oxygen entering the second air inlet channel 12 is output from the oxygen supply valve, and the oxygen outlet flow is adjusted by the flow valve before being output to the user end.

[0045] The air outlet channel 13 is arranged in the valve seat 1 and extends outward to the outside of the valve seat 1. Its inlet is connected to the second air outlet of the second valve control component 3, and the outlet is used to connect to the user end; when the third air inlet of the second valve control component 3 is connected to the second air outlet, the oxygen in the second air inlet channel 12 can be transported to the user end through the air outlet channel 13, and a continuous oxygen supply circuit is formed at this time.

[0046] The transition channel 19 is arranged in the valve seat 1, and its inlet is connected to the first air outlet of the first valve control component 2, and the outlet is connected to the fourth air inlet of the second valve control component 3; when the first air inlet of the first valve control component 2 is connected to the first air outlet, the oxygen entering the first air inlet channel 11 can be transported to the transition channel 19 through the first valve control component 2. If the fourth air inlet and the second air outlet of the second valve control component 3 are connected at this time, the oxygen entering the transition channel 19 can be transported to the user end through the second valve control component 3 via the air outlet channel 13, and a pulse oxygen supply circuit is formed at this time.

[0047] The first detection channel 14 is arranged in the valve seat 1 and extends outward to the outside of the valve seat 1. One end of the first detection channel 14 is connected to the second air inlet of the first valve control component 2, and the other end is connected to the breathing sensor for detecting the user's breathing state. When the second air inlet of the first valve control component 2 is connected to the first air outlet, the first detection channel 14 is connected to the transition channel 19. If the fourth air inlet of the second valve control component 3 is connected to the second air outlet at this time, the transition channel 19 is connected to the user end through the air outlet channel 13, so that the breathing sensor is connected to the user end for detecting the user's breathing state, so that the breathing sensor can provide pulse oxygen to the user in time when the user inhales, and stop supplying oxygen when the user exhales. There are many ways to connect the outlet of the first detection channel 14 to the breathing sensor. The outlet of the first detection channel 14 can be directly connected to the breathing sensor, or the first detection channel 14 can be connected to the breathing sensor through an external pipeline.

[0048] In a specific embodiment, the oxygen supply valve includes a valve seat 1 and first and second valve control components, and the first and second valve control components are respectively threadedly connected to the valve seat 1. Figures 3-4As shown, the oxygen output from the oxygen outlet of the oxygen production unit is divided into two paths through a three-way piece, and one port of the three-way piece is connected to the first air inlet channel 11 through a pipeline to implement a pulse oxygen supply path: the outlet of the first air inlet channel 11 is connected to the first air inlet port of the first valve control component 2, when the first air inlet port of the first valve control component 2 is connected to the first air outlet, the first air inlet channel 11 is communicated with the transition channel 19, and oxygen is transported from the first air inlet channel 11 to the transition channel 19, and the outlet of the transition channel 19 is connected to the fourth air inlet port of the second valve control component 3, when the fourth air inlet port of the second valve control component 3 is connected to the second air outlet, the transition channel 19 is communicated with the air outlet channel 13, and oxygen is transported to the User end; the oxygen supply valve also includes a first detection channel 14, one end of the first detection channel 14 is connected to the second air inlet of the first valve control component 2, and the other end is connected to the breathing sensor. When the second air inlet is connected to the first air outlet, the first detection channel 14 is connected to the transition channel 19, and when the fourth air inlet is connected to the second air outlet, the transition channel 19 is connected to the outlet channel 13. At this time, the breathing sensor is connected to the user end through the first detection channel 14, the transition channel 19 and the outlet channel 13 to detect the user's breathing state. When the user uses the pulse oxygen supply mode, the pulse oxygen supply circuit is executed when the breathing sensor detects the user's inhalation action, and when the breathing sensor detects the user's exhalation, the pulse oxygen supply circuit is not started.

[0049] The other port of the three-way piece is connected to the pressure reducing valve 4 through a pipeline, and the oxygen produced by the oxygen production unit can be reduced in pressure and stabilized by the pressure reducing valve 4, thereby reducing the adverse experience brought to users by oxygen pressure fluctuations when users breathe oxygen in the continuous oxygen supply mode. The air outlet of the pressure reducing valve 4 is connected to the air inlet end of the flow valve, and the oxygen produced by the oxygen production unit is adjusted to a suitable oxygen outlet flow rate through the flow valve. The air outlet end of the flow valve is connected to the second air inlet channel 12, and the outlet of the second air inlet channel 12 is connected to the third air inlet port of the second valve control component 3. When the third air inlet port is connected to the second air outlet port, the second air inlet channel 12 is connected to the air outlet channel 13, so as to deliver oxygen for continuous oxygen supply to the user.

[0050] The oxygen supply valve provided by the utility model integrates the pulse oxygen supply circuit and the continuous oxygen supply circuit in the valve seat 1, and is connected to the valve seat 1 by setting the first and second valve control components, which are used to control the on-off of each channel in the valve seat 1, so that the oxygen produced by the oxygen production unit is delivered to the user end through the pulse oxygen supply circuit or the continuous oxygen supply circuit to meet the user's oxygen demand for different oxygen supply modes; by setting the first and second valve control components, active control of the gas circuits of each channel can be achieved, which can effectively prevent the backflow of gas and extend the service life of the oxygen generator; by setting the first detection channel 14 to be connected with the breathing sensor for detecting the user's breathing state, in the pulse oxygen supply mode, when the breathing sensor detects that the user inhales, pulse oxygen supply is performed, and when the user exhales, oxygen supply is stopped, which is conducive to improving the utilization rate of oxygen; by integrating each channel on the valve seat 1, the pipeline setting between components is reduced, which is conducive to reducing oxygen leakage and facilitating improving the oxygen production efficiency of the oxygen generator; the oxygen supply valve has a compact structure, a reasonable layout, and occupies a small space, which is conducive to meeting the miniaturization requirements of the oxygen generator.

[0051] In one embodiment, in order to extend the service life of the oxygen supply valve, reduce the energy consumption of the oxygen concentrator, and facilitate extending the oxygen supply time of the oxygen concentrator when no power is supplied, the first and second valve control components are both normally closed valves. When the first valve control component 2 is opened, the first air inlet is connected to the first air outlet, so that the first air inlet channel 11 is connected to the transition channel 19 for inputting pulse oxygen. Since oxygen is only supplied when the user inhales in the pulse oxygen supply mode, the oxygen supply time is short. When the oxygen is supplied, the first valve control component 2 is opened, which is beneficial to reduce the power consumption of the oxygen concentrator and to extend the oxygen supply valve. life; compared with the pulse oxygen supply mode, the continuous oxygen supply mode has a shorter usage time. Therefore, when the second valve control component 3 is turned on, the third air inlet and the second air outlet are connected, so that the second air inlet channel 12 is connected with the air outlet channel 13, which is used to deliver continuous oxygen to the user, which saves relatively much electric energy. For example, the continuous oxygen supply mode can be used during the user's sleep. At this time, the user's breathing is shallow. In order to prevent the poor sensitivity or malfunction of the breathing sensor, which leads to the failure to detect the user's breathing for a long time, thereby affecting the user's health, the continuous mode of oxygen supply can be used.

[0052] When the user goes out daily, the pulse oxygen supply mode can be adopted. Initially, the second valve control component 3 can be in a closed state, that is, the transition channel 19 is connected to the outlet channel 13, and the first valve control component 2 is also in a closed state. At this time, the respiratory sensor is connected to the first detection channel 14, the transition channel 19 and the outlet channel 13 and the user end for detecting the user's respiratory state. When the respiratory sensor detects that the user inhales, the first valve control component 2 is opened to connect the first air inlet channel 11, the transition channel 19 and the outlet channel 13 to deliver pulse oxygen to the user. When the user exhales, the oxygen supply is stopped. When the user sleeps, the continuous oxygen supply mode can be adopted, the first valve control component 2 is closed, and the second valve control component 3 is opened to connect the second air inlet channel 12 with the outlet channel 13. Since the third air inlet and the fourth air inlet are not connected to the second air outlet at the same time, the oxygen entering the outlet channel 13 will not flow back to the transition channel 19, and will not flow back into the first detection channel 14 to affect the respiratory sensor.

[0053] In order to further refine the continuous oxygen supply circuit and reduce the use of pipelines, in one embodiment, Figure 5 As shown, the oxygen supply valve also includes a decompression channel 15, which is arranged in the valve seat 1 and extends outward to the outside of the valve seat 1, and is used to connect the decompression valve 4; it also includes an extension channel 18, which is arranged inside the valve seat 1, and one end of which is connected to the bending part of the first air inlet channel 11. The "bending part" mentioned here refers to the part where the extension lines of the inlet and outlet of the first air inlet channel 11 intersect. One end of the extension channel 18 can be arranged on the extension line of the inlet of the first air inlet channel 11, and can also be arranged on the extension line of the outlet of the first air inlet channel 11. The other end of the extension channel 18 is connected to the decompression channel 15, which can be connected to the inlet of the decompression channel 15, and is used to transport oxygen into the decompression channel 15. The outlet of the decompression channel 15 is connected to the decompression valve 4, and is used to reduce and stabilize the oxygen in the continuous oxygen supply mode, so as to reduce the bad oxygen use experience brought to the user by the oxygen pressure fluctuation when the user breathes oxygen.

[0054] Or, in another embodiment, Figure 6As shown, the oxygen supply valve includes a decompression chamber 15', which is arranged in the valve seat 1. The side of the decompression chamber 15' at one end close to the inside of the valve seat 1 is communicated with the extension channel 18. One end of the extension channel 18 is arranged on the bending portion of the first air inlet channel 11, that is, one end of the extension channel 18 is communicated with the bending portion of the first air inlet channel 11, and the other end is communicated with the entrance of the decompression chamber 15'. The oxygen entering the first air inlet channel 11 is communicated with the decompression chamber 15' through the extension channel 18. The other end of the decompression chamber 15' is flush with the side wall surface of the valve seat 1 and is open toward the outer surface of the valve seat 1, thereby forming an open end of the decompression chamber 15'. The decompression chamber 15' is used to accommodate the decompression valve 4 or a part of the decompression valve 4. The decompression valve 4 is arranged at one end of the decompression chamber 15' away from the extension channel 18. For example, the decompression valve 4 extends from the opening end of the decompression chamber 15' into the cavity of the decompression chamber 15', or a part of the decompression valve 4 extends from the opening end of the decompression chamber 15' into the cavity of the decompression chamber 15'. There are many structures of the pressure reducing valve 4, including but not limited to Figure 7 The pressure reducing valve 4 is fixedly connected or detachably connected to the pressure reducing chamber 15', for example, the pressure reducing valve 4 is fixed in the cavity of the pressure reducing chamber 15', or a threaded hole is provided inside the pressure reducing chamber 15', and an external thread is provided on one end of the pressure reducing valve 4, and the two are threadedly connected.

[0055] In order to prevent the respiratory sensor from being damaged by high pressure, in one embodiment, a pressure relief member is provided on the first detection channel 14, through which the high pressure in the first detection channel 14 can be released; or, in another embodiment, as Figure 3 As shown, a pressure relief channel 17 is provided on the first detection channel 14, and a pressure relief member is provided in the pressure relief channel 17. The first detection channel 14 is connected to the pressure relief member through the pressure relief channel 17. Since the pressure relief channel 17 is directly connected to the first detection channel 14, when high pressure is formed in the first detection channel 14, high pressure will also be generated in the pressure relief channel 17, that is, the air pressure in the first detection channel 14 is the same as that in the pressure relief channel 17. When the pressure relief member senses that the pressure in the channel is too high, it will release the pressure. By providing a pressure relief member (not shown in the figure), the high pressure flowing into the first detection channel 14 can be released, so that it will not affect the respiratory sensor at the other end of the first detection channel 14, and the life of the respiratory sensor can be extended. The pressure relief member can be a safety valve, a pressure reducing valve or other valve with a pressure relief function.

[0056] In one embodiment, Figures 7-8As shown, the air inlet end of the pressure reducing valve 4 extends into the cavity of the pressure reducing chamber 15'. In order to prevent the air inlet end of the pressure reducing valve 4 from completely occupying the cavity of the pressure reducing chamber 15', so that the oxygen entering the extension channel 18 cannot enter the pressure reducing chamber 15', in this embodiment, it is set that the length of the pressure reducing chamber 15' is greater than the length of the air inlet end of the pressure reducing valve 4, so that oxygen can enter the pressure reducing chamber 15' through the extension channel 18, and then the oxygen can enter the pressure reducing valve 4 from the air inlet end of the pressure reducing valve 4 to reduce pressure and stabilize the pressure before being output from its air outlet. The air inlet end of the pressure reducing valve 4 is provided with an external thread, and the inner wall of the pressure reducing chamber 15' is provided with an internal thread extending inward along the opening end, and the internal thread matches the external thread, and the pressure reducing valve 4 is threadedly connected to the pressure reducing chamber 15'.

[0057] In one embodiment, in order to prevent oxygen from flowing out of the gap between the pressure reducing valve 4 and the pressure reducing chamber 15', or the pressure reducing valve 4 is separated from the valve seat 1 during the movement or shaking of the oxygen generator, a sealing member is provided between the pressure reducing valve 4 and the pressure reducing chamber 15'. For example, a sealing ring may be provided between the pressure reducing valve 4 and the pressure reducing chamber 15', and the gap between the pressure reducing valve 4 and the pressure reducing chamber 15' may be compressed by the sealing ring to prevent oxygen from overflowing; or, a sealant, such as an anaerobic sealant, may be applied to the external thread of the air inlet end of the pressure reducing valve 4, and then the pressure reducing valve 4 is threadedly connected to the pressure reducing chamber 15', and the pressure reducing valve 4 and the pressure reducing chamber 15' are fixed together by the sealant, which can play a role in isolating the air.

[0058] In order to facilitate the detection of the oxygen pressure produced by the oxygen production unit, a second detection channel 16 is also provided on the oxygen supply valve, which is arranged in the valve seat 1 and extends outward to the outside of the valve seat 1. In one embodiment (not shown in the figure), the inlet of the second detection channel 16 is arranged on the first air inlet channel 11, and the outlet is used to communicate with the pressure sensor. The oxygen outlet of the oxygen production unit is connected to the second detection channel 16 through the first air inlet channel 11, and no valve component is arranged in the middle. The oxygen outlet of the oxygen production unit has the same air pressure as the second detection channel 16, which will not affect the accuracy of the detection. In another embodiment, Figure 6 As shown, the inlet of the second detection channel 16 is arranged at the end of the decompression chamber 15' away from the decompression valve 4. The inlet of the second detection channel 16 is arranged at the end away from the decompression valve 4, and the air pressure will not be affected by the decompression valve 4. The air pressure at this end is the same as the air pressure at the oxygen outlet end of the oxygen production unit, which is convenient for detection accuracy.

[0059] In order to make the structure of the valve seat 1 simpler and more compact, Figure 6As shown, the inlet of the second detection channel 16 is arranged at the end of the decompression chamber 15' away from the decompression valve 4, that is, the second detection channel 16 is connected to the decompression chamber 15', and in order to make the structure of the valve seat 1 more beautiful, the second detection channel 16 is arranged in parallel with the extension channel 18. In one embodiment, the second detection channel 16 and the extension channel 18 can be on the same extension line.

[0060] In a specific application scenario, the oxygen supply valve includes a valve seat 1, a first valve control component 2 and a second valve control component 3, and the valve seat 1 is provided with a first air inlet channel 11, a second air inlet channel 12, an air outlet channel 13, a transition channel 19, a first detection channel 14, an extension channel 18 and a decompression chamber 15', wherein the first air inlet channel 11 is connected with the extension channel 18, and the extension channel 18 is connected with the decompression chamber 15'; the first valve control component 2 controls the first air inlet channel 11 to be connected with the transition channel 19, or controls the first detection channel 14 to be connected with the transition channel 19; the second valve control component 3 controls the second air inlet channel 12 to be connected with the air outlet channel 13, or controls the transition channel 19 to be connected with the air outlet channel 13.

[0061] The inlet of the first air inlet channel 11 is used to be connected to the first oxygen delivery end. In this embodiment, the inlet of the first air inlet channel 11 can be connected to the oxygen outlet end of the oxygen production unit. After the oxygen is output from the oxygen outlet end of the oxygen production unit, it enters the valve seat 1 from the inlet of the first air inlet channel 11, and then is divided into two paths. One path leads to the outlet of the first air inlet channel 11. When the first valve control component 2 is opened, the first air inlet channel 11 is connected to the transition channel 19. If at this time, the second valve control component 3 is in a closed state, oxygen can be delivered from the transition channel 19 to the user end through the outlet channel 13, and the pulse oxygen supply mode is executed at this time; if the first and second valve control components are both in a closed state, the first detection channel 14, the transition channel 19 and the outlet channel 13 are connected. Since the other end of the first detection channel 14 is connected to the breathing sensor, the user's breathing state can be detected at this time. In the state, when it is detected that the user inhales, the first valve control component 2 is opened and the second valve control component 3 is closed, and the pulse oxygen supply mode is executed to provide pulse oxygen for the user; the other path leads to the extension channel 18, and enters the decompression chamber 15' through the extension channel 18, and the decompression chamber 15' and the air inlet end of the decompression valve 4 can be threadedly connected, then, the oxygen in the decompression chamber 15' is transported to the decompression valve 4 through the air inlet end of the decompression valve 4 for decompression and voltage stabilization before output. In this embodiment, after the oxygen is output from the air outlet end of the decompression valve 4, it can pass through the flow valve, and the oxygen flow rate is adjusted to the oxygen flow rate required by the user through the flow valve, and then enter the valve seat 1 through the second air inlet channel 12. When the user switches to the continuous oxygen production mode, the second valve control component 3 is opened, and the oxygen in the second air inlet channel 12 is output to the user end through the air outlet channel 13, so as to provide continuous oxygen for the user.

[0062] The valve seat 1 is also provided with a second detection channel 16, the inlet of which is connected to the end of the pressure reducing chamber 15' away from the air inlet end of the pressure reducing valve 4, and the outlet is used to connect to the pressure sensor for detecting the oxygen pressure produced by the oxygen production unit. In addition, the first detection channel 14 is also provided with a pressure relief member, which can release the high pressure entering the first detection channel 14 when the user end is blocked, so as to prevent the respiratory sensor from being damaged by the high pressure.

[0063] The utility model also provides an oxygen generator, including a control unit, an oxygen generating unit, a pressure reducing valve 4, a flow valve and the oxygen supply valve as described above; the oxygen generating unit is used to generate oxygen and supply the oxygen to a user through the oxygen supply valve; the oxygen supply valve is used to respond to the control instruction of the control unit to provide pulse oxygen or continuous oxygen to the user, and to collect air pressure information and send it to the control unit, and to distribute the pulse oxygen supply circuit in response to the control instruction sent by the control unit; the flow valve and / or the pressure reducing valve 4 are used to be connected with the oxygen supply valve to provide continuous oxygen to the user, the pressure reducing valve 4 can play the role of pressure reduction and pressure stabilization, and reduce the user's poor oxygen experience caused by pressure fluctuations when inhaling oxygen, and the flow valve can play the role of regulating the flow of continuous oxygen to meet the user's demand for oxygen inhalation flow; the control unit is communicatively connected with the oxygen generating unit, the pressure reducing valve 4, the flow valve and the oxygen supply valve.

[0064] In one embodiment, the oxygen concentrator includes a control unit, an oxygen concentrator, a pressure reducing valve 4, a flow valve and an oxygen supply valve. The oxygen outlet of the oxygen concentrator is connected to the air inlet channel 11 of the oxygen supply valve, the air inlet of the pressure reducing valve 4 is threadedly connected to the pressure reducing chamber 15', the air outlet of the pressure reducing valve 4 is connected to the air inlet of the flow valve, and the air outlet of the flow valve is connected to the second air inlet channel 12. When the user runs the pulse oxygen concentrator mode, the control unit controls the first and second valve control components to close. At this time, the first detection channel 14, the transition channel 19 and the air outlet channel 13 are connected. The breathing sensor detects the user's breathing state and sends it to the control unit. When the breathing sensor detects that the user inhales, the control unit controls the first valve control component 2 to open and the second valve control component 3 to close, so that the first air inlet channel 11, the transition channel 19 and the air outlet channel 13 are connected, and the oxygen produced by the oxygen concentrator is delivered to the user end; when the breathing sensor detects that the user exhales, the control unit controls the first and second valve control components to close. When the user runs the continuous oxygen production mode, the control unit controls the second valve control component 3 to open, the first valve control component 2 to close, and controls the pressure reducing valve 4 and the flow valve to work. The pressure reducing valve 4 stabilizes the pressure of the oxygen flowing through the pressure reducing valve 4 to reduce the pressure fluctuation when the user breathes oxygen and prolong the oxygen production life of the oxygen production unit. The flow valve adjusts the oxygen flow rate to meet the user's oxygen demand; the oxygen entering the valve seat 1 from the first air inlet channel 11 enters the pressure reducing chamber 15' through the extension channel 18, the pressure reducing chamber 15' is connected to the air inlet end of the pressure reducing valve 4, and then output to the outside of the valve seat 1 through the air outlet end of the pressure reducing valve 4, the air outlet end of the pressure reducing valve 4 is connected to the flow valve, the oxygen is output from the air outlet end of the pressure reducing valve 4 to the flow valve, and then transported to the second air inlet channel 12 through the flow valve, so that the continuous oxygen is input into the oxygen supply valve. In the continuous oxygen supply mode, the oxygen is transported from the second air inlet channel 12 to the user end through the air outlet channel 13.

[0065] The above description is an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An oxygen supply valve, characterized in that: include, valve seats; and The first and second valve control components are fixedly connected or detachably connected to the valve seat, the first and second valve control components are not in the same plane, and the first and second valve control components respectively include at least two air inlets and at least one air outlet, for realizing passage switching between the air inlets and the air outlets; and a first air inlet passage, which is disposed in the valve seat and extends outward to the outside of the valve seat, wherein the inlet is connected to the first oxygen delivery end, and the outlet is connected to the first air inlet of the first valve control element, and the first air inlet passage is L-shaped, and the extension lines of the inlet and the outlet are perpendicular to each other; and a second air inlet passage, which is disposed in the valve seat and extends outward to the outside of the valve seat, wherein the inlet is connected to the second oxygen delivery end and the outlet is connected to the third air inlet of the second valve control element; and an air outlet channel, which is arranged in the valve seat and extends outward to the outside of the valve seat, wherein the inlet is connected to the second air outlet of the second valve control member, and the outlet is used to be connected to the user end; and a transition channel, disposed in the valve seat, with an inlet connected to the first air outlet of the first valve control component and an outlet connected to the fourth air inlet of the second valve control component; and A first detection channel is arranged in the valve seat and extends outward to the outside of the valve seat, one end of which is connected to the second air inlet of the first valve control component, and the other end of which is connected to the breathing sensor; The first and second air inlets of the first valve control component are not connected to the first air outlet at the same time; the third and fourth air inlets of the second valve control component are not connected to the second air outlet at the same time.

2. The oxygen supply valve according to claim 1, characterized in that: The first and second valve control components are both normally closed valves. When the first valve control component is opened, the first air inlet channel is connected to the transition channel; when the second valve control component is opened, the second air inlet channel is connected to the air outlet channel.

3. The oxygen supply valve according to claim 2, characterized in that: Also includes, a pressure reducing passage, disposed in the valve seat and extending outward to the outside of the valve seat; An extension channel is arranged inside the valve seat, one end of which is communicated with the bent portion of the first air inlet channel, and the other end of which is communicated with the pressure reducing channel; The inlet of the pressure reducing channel is communicated with the extension channel, and the outlet is connected with the pressure reducing valve.

4. The oxygen supply valve according to claim 2, characterized in that: It also includes a decompression chamber, which is arranged in the valve seat, and the side of the decompression chamber at one end close to the interior of the valve seat is connected to the extension channel, one end of the extension channel is connected to the bending portion of the first air inlet channel, and the other end is connected to the decompression chamber, the other end of the decompression chamber extends to be flush with the side wall surface of the valve seat and is open toward the outer surface of the valve seat, and the decompression valve is arranged at the end of the decompression chamber away from the extension channel, and the decompression valve is fixedly connected or detachably connected to the decompression chamber.

5. The oxygen supply valve according to claim 4, characterized in that: The first detection channel is further provided with a pressure relief component, or the first detection channel is provided with a pressure relief channel, and the pressure relief component is provided in the pressure relief channel.

6. The oxygen supply valve according to claim 5, characterized in that: The length of the decompression chamber is greater than the length of the air inlet end of the decompression valve. The air inlet end of the decompression valve is provided with an external thread. The inner wall of the decompression chamber is provided with an internal thread extending inward along the opening end. The internal thread matches the external thread. The decompression valve is threadedly connected to the decompression chamber.

7. The oxygen supply valve according to claim 6, characterized in that: A sealing member is provided between the pressure reducing chamber and the pressure reducing valve.

8. The oxygen supply valve according to claim 5, characterized in that: It also includes a second detection channel, which is arranged in the valve seat and extends outward to the outside of the valve seat. The inlet of the second detection channel is arranged on the first air inlet channel, or is arranged at the end of the decompression chamber away from the decompression valve, and the outlet is connected to the pressure sensor.

9. The oxygen supply valve according to claim 8, characterized in that: The second detection channel is communicated with the decompression chamber, and the second detection channel is arranged in parallel with the extension channel.

10. An oxygen concentrator, characterized in that: It comprises a control unit, an oxygen production unit, a pressure reducing valve, a flow valve and an oxygen supply valve as described in any one of claims 1 to 9; the oxygen production unit is used to generate oxygen and supply the oxygen to a user through the oxygen supply valve; the oxygen supply valve is used to respond to the control instruction of the control unit to provide pulse oxygen or continuous oxygen to the user, and to collect air pressure information and send it to the control unit, and allocate the pulse oxygen supply circuit in response to the control instruction sent by the control unit; the flow valve and / or the pressure reducing valve is used to be connected to the oxygen supply valve to provide continuous oxygen to the user; the control unit is communicatively connected with the oxygen production unit, the pressure reducing valve, the flow valve and the oxygen supply valve respectively.

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