Mechanical pulse oxygen saving valve

Abstract

The utility model discloses a mechanical pulse oxygen saving valve which comprises an air outlet connector, a valve body, an adjusting ring, a trigger assembly, an elastic flow adjusting assembly and an elastic switching assembly. An air inlet channel, a pulse air outlet channel and a continuous air outlet channel are arranged in the valve body, and the pulse air outlet channel and the continuous air outlet channel can be communicated with the air inlet channel and the air outlet connector at the same time. The flow of gas entering the pulse gas outlet channel and the continuous gas outlet channel through the gas inlet channel is controlled by rotating the adjusting ring; whether gas can enter the gas outlet connector through the continuous gas outlet channel or not is controlled by shifting the adjusting ring. The elastic flow adjusting assembly and the elastic switching assembly are arranged in the valve body, the adjusting ring is arranged on the outer side of the valve body, the oxygen supply mode switching function and the oxygen supply flow adjusting function are integrated, adjustment can be conducted through the adjusting ring, the oxygen supply valve has the advantages of being convenient and fast to operate, meanwhile, the size is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen supply equipment, in particular to a mechanical pulse oxygen-saving valve. Background Art

[0002] The oxygen supply equipment currently on the market can adjust the oxygen supply flow rate while achieving the switching of the oxygen supply mode. However, most of the oxygen supply equipment need to set different control structures to achieve the switching of the oxygen supply mode and the adjustment of the oxygen supply flow rate, which makes the structure of the oxygen supply equipment more complicated and inconvenient for users to operate. Therefore, there is a need for an oxygen-saving valve that has both the oxygen supply mode switching function and the oxygen supply flow rate adjustment function and is easy to operate. Utility Model Content

[0003] The utility model provides a mechanical pulse oxygen-saving valve to overcome the technical problems of the existing oxygen-saving valves having a complex structure and inconvenient operation.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A mechanical pulse oxygen-saving valve comprises an air outlet joint, a valve body, an adjusting ring, a trigger assembly, an elastic flow regulating assembly and an elastic switching assembly; one end of the valve body is matched and mounted on the inner side of the adjusting ring, and the other end is connected to the air outlet joint, and the trigger assembly is arranged between the valve body and the air outlet joint; an air inlet channel, a pulse air outlet channel and a continuous air outlet channel are arranged inside the valve body, and both the pulse air outlet channel and the continuous air outlet channel can be simultaneously connected to the air inlet channel and the air outlet joint; the elastic flow regulating assembly is arranged in the air inlet channel and abuts against the inner wall of the adjusting ring, and the flow rate of gas entering the pulse air outlet channel and the continuous air outlet channel through the air inlet channel is controlled by rotating the adjusting ring; the air outlet joint cooperates with the trigger assembly to control whether the gas can enter the air outlet joint through the pulse air outlet channel; the elastic switching assembly is arranged in the continuous air outlet channel, and the elastic switching assembly is controlled to separate or fit by turning the adjusting ring, thereby controlling whether the gas can enter the air outlet joint through the continuous air outlet channel.

[0006] Furthermore, the air inlet channel includes a buffer chamber, and the elastic flow regulating component is arranged in the buffer chamber, one end of the elastic flow regulating component abuts against the inner wall of the adjusting ring, and the other end is opposite to the air outlet of the air inlet channel, and the opening size of the air outlet of the air inlet channel is adjusted by rotating the adjusting ring to control the gas flow rate entering the pulse air outlet channel and the continuous air outlet channel; the elastic flow regulating component includes a flow regulating valve seat, a flow regulating valve stem and a first elastic component; the flow regulating valve seat is fixedly arranged in the buffer chamber, and is provided with a accommodating chamber for installing the flow regulating valve stem, and the flow regulating valve stem is arranged in the accommodating chamber; the inner wall of the adjusting ring is provided with an adjusting groove all around, and the axis A of the adjusting ring is different from the axis B of the adjusting groove, one end of the flow regulating valve stem is matched and arranged in the adjusting groove, and the other end is sleeved with the first elastic component, and one end of the first elastic component abuts against the valve body.

[0007] Furthermore, the continuous air outlet channel includes a first mounting groove, and the elastic switching component is arranged in the first mounting groove; the elastic switching component includes a switching valve seat, a switching valve stem and a second elastic component; the switching valve seat is fixedly arranged in the first mounting groove, the switching valve stem is movably connected to the switching valve seat, and one end of the switching valve stem is opposite to one end surface of the adjusting ring, and the other end is abutted against the inner wall of the first mounting groove through the second elastic component, when the adjusting ring is pushed to separate the switching valve seat from the switching valve stem, the continuous air outlet channel is connected to the air outlet joint; when the adjusting ring is pulled to make the switching valve seat fit with the switching valve stem, the continuous air outlet channel is disconnected from the air outlet joint.

[0008] Furthermore, the adjustment groove includes adjacent pulse mode grooves and continuous mode grooves, and a plurality of elastic top screws are provided at the edge of the valve body; when the oxygen supply mode is the pulse mode, one end of a plurality of the elastic top screws are clamped in the pulse mode groove; when the oxygen supply mode is the continuous mode, one end of a plurality of the elastic top screws are clamped in the continuous mode groove.

[0009] Furthermore, the switching valve seat is provided with an accommodating cavity for accommodating the switching valve rod, and the switching valve rod is arranged in the accommodating cavity; the switching valve rod includes a third connecting rod and a fourth connecting rod, the third connecting rod is arranged on a side close to the second elastic component, and the fourth connecting rod is arranged on a side close to an end surface of the adjusting ring, and the diameter of the third connecting rod is larger than the diameter of the fourth connecting rod; the continuous air outlet channel also includes a first air outlet channel and a second air outlet channel respectively connected to the first mounting groove, the side wall of the switching valve seat is provided with a first through hole connected to the first air outlet channel, a sealing ring is provided at the edge of the third connecting rod, and the sealing ring is arranged between the first through hole and the second air outlet channel.

[0010] Furthermore, the air outlet connector includes a connecting component, an air outlet component, an adjusting knob and a sensitivity adjustment component; the connecting component is provided with a accommodating cavity and an air inlet and an air outlet connected to the accommodating cavity, the sensitivity adjustment component is arranged in the accommodating cavity, and is provided with a third air outlet channel connected to the air inlet and the air outlet, one end of the sensitivity adjustment component is matched and connected with the adjusting knob, and the other end is abutted with the trigger component; the air outlet component is sleeved on the outer wall of the connecting component, and is provided with a fourth air outlet channel connected to the air outlet; the sensitivity adjustment component is moved in a direction approaching or away from the adjusting knob by rotating the adjusting knob, thereby correspondingly reducing or increasing the resistance of the sensitivity adjustment component to the trigger component, so as to adjust the trigger sensitivity of the trigger component during inhalation.

[0011] Furthermore, the sensitivity adjustment assembly includes an adjustment rod and a third elastic component; one end of the adjustment rod is clamped with the adjustment knob, and the other end is provided with a mounting groove for installing the third elastic component and a first retaining ring is provided on the outer wall; the third elastic component is arranged in the mounting groove and abuts against the trigger assembly; a plurality of second through holes are provided on the side wall of the adjustment rod close to the air outlet, and the second through holes are connected to the air outlet.

[0012] Furthermore, a trigger assembly mounting groove is provided at the center position of the valve body, and the trigger assembly includes a pilot diaphragm, a fixing plate and a main valve diaphragm, and the main valve diaphragm, the fixing plate and the pilot diaphragm are sequentially arranged in the trigger assembly mounting groove along the axial direction of the valve body; a first valve cavity is formed between the fixing plate and the main valve diaphragm, and a second valve cavity is formed between the fixing plate and the pilot diaphragm, and a side wall of the valve body is provided with an air outlet path connected to the second valve cavity; the main valve diaphragm is in contact with the air inlet of the pulse air outlet channel; a third through hole is provided at the center position of the fixing plate; the pilot diaphragm is in contact with the third elastic component, and is in contact with the third through hole under the elastic force of the third elastic component.

[0013] Furthermore, it also includes a micropore needle valve, and the interior of the valve body is also provided with a pressure regulating channel, and the pressure regulating channel is respectively connected with the air inlet channel and the first valve chamber; the pressure regulating channel includes a micropore needle valve mounting groove, and the micropore needle valve is arranged in the micropore needle valve mounting groove, and one end is opposite to the air inlet of the pressure regulating channel, and the opening size of the air inlet of the pressure regulating channel is adjusted by adjusting the micropore needle valve to control the gas flow rate entering the first valve chamber.

[0014] Beneficial effects: The utility model arranges an elastic flow regulating component and an elastic switching component inside the valve body, and arranges an adjusting ring on the outside of the valve body. The gas flow entering the pulse outlet channel and the continuous outlet channel through the air inlet channel is controlled by rotating the adjusting ring, thereby realizing the oxygen supply flow regulating function; the elastic switching component is controlled to separate or fit by turning the adjusting ring, thereby controlling whether the gas can enter the outlet connector through the continuous outlet channel, thereby realizing the oxygen supply mode switching function. The oxygen-saving valve integrates the oxygen supply mode switching function and the oxygen supply flow regulating function, and can be adjusted through the adjusting ring. It has the advantage of convenient operation, and at the same time, the volume is reduced, thereby reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a mechanical pulse oxygen-saving valve in the utility model;

[0017] Figure 2 This is a mechanical pulse oxygen saving valve in the utility model. Figure 1 Cross-sectional view at FF;

[0018] Figure 3 for Figure 2 A partial enlarged view of the M in the middle;

[0019] Figure 4 for Figure 2 A local enlarged view of the N position in the middle;

[0020] Figure 5 This is a mechanical pulse oxygen saving valve in the utility model. Figure 1 Cross-sectional view at GG;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the mechanical pulse oxygen-saving valve without the gas outlet joint in the utility model;

[0022] Figure 7 for Figure 6 Cross-sectional view at HH;

[0023] Figure 8 It is a first schematic diagram of the gas flow direction of a mechanical pulse oxygen-saving valve in the utility model;

[0024] Fig. 9It is a second schematic diagram of the gas flow direction of a mechanical pulse oxygen-saving valve in the utility model;

[0025] Fig.10 The utility model is a schematic diagram of the axial position of the adjusting ring and the adjusting groove of the mechanical pulse oxygen-saving valve.

[0026] In the figure:

[0027] 1. Air outlet connector; 11. Connecting component; 111. Air inlet; 112. Air outlet; 113. Connecting cover; 113A: first chamber; 114. Connecting ring; 12. Air outlet component; 121. Air outlet ring; 121A: air storage tank; 122. Air outlet nozzle; 122A: third channel; 13. Adjusting knob; 131. Fixing rod; 132. Limiting rod; 133. Adjusting cover; 14. Sensitivity adjusting component; 141. Adjusting rod; 141A: second through hole; 142. Third elastic component;

[0028] 2. Valve body; 21. Air inlet channel; 211. First branch channel; 212. Second branch channel; 22. Pulse air outlet channel; 22A. Air inlet of pulse air outlet channel; 23. Continuous air outlet channel; 231. First air outlet channel; 232. Second air outlet channel; 24. Elastic top screw; 25. Air outlet path; 26. Pressure regulating channel;

[0029] 3. Adjustment ring; 31. Adjustment groove; 311. Pulse mode groove; 312. Continuous mode groove;

[0030] 4. trigger assembly; 41. pilot diaphragm; 42. fixing plate; 421. first valve cavity; 422. second valve cavity; 423. third through hole; 43. main valve diaphragm;

[0031] 5. Elastic flow regulating assembly; 51. Flow regulating valve seat; 52. Flow regulating valve stem; 521. First connecting rod; 522. Second connecting rod; 53. First elastic component;

[0032] 6. Elastic switching assembly; 61. Switching valve seat; 611. First through hole; 62. Switching valve stem; 621. Third connecting rod; 621A. Sealing ring; 622. Fourth connecting rod; 63. Second elastic component;

[0033] 7. Micropore needle valve;

[0034] C, first retaining ring; D, second retaining ring; E, third retaining ring. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] This embodiment provides a mechanical pulse oxygen-saving valve, such as Figure 1 , Figure 2 and Fig. 9 As shown, it includes an air outlet connector 1, a valve body 2, an adjusting ring 3, a trigger component 4, an elastic flow regulating component 5 and an elastic switching component 6; one end of the valve body 2 is matched and installed on the inner side of the adjusting ring 3, and the other end is connected to the air outlet connector 1, and the trigger component 4 is arranged between the valve body 2 and the air outlet connector 1; the interior of the valve body 2 is provided with an air inlet channel 21, a pulse air outlet channel 22 and a continuous air outlet channel 23, and the pulse air outlet channel 22 and the continuous air outlet channel 23 can be connected to the air inlet channel 21 and the air outlet connector 1 at the same time; the elastic flow regulating component 5 is arranged on the inlet The gas outlet connector 1 and the trigger component 4 cooperate to control whether the gas can enter the gas outlet connector 1 through the pulse gas outlet channel 22; the elastic switching component 6 is arranged in the continuous gas outlet channel 23, and the elastic switching component 6 is controlled to separate or fit by turning the adjusting ring 3, thereby controlling whether the gas can enter the gas outlet connector 1 through the continuous gas outlet channel 23. Specifically, in this embodiment, the gas outlet connector 1 and the valve body 2 are fixedly connected by four screws (not shown in the figure);

[0037] Specifically, in this embodiment, the following are integrated inside the valve body 2: 1) an elastic flow regulating component 5 for adjusting the gas flow rate to achieve stepless regulation of the oxygen supply flow rate, and 2) an elastic switching component 6 for adjusting the oxygen supply mode to achieve regulation of the pulse mode and the continuous mode; and an adjustment ring 3 is matched and arranged on the outer side of the valve body 2, so that the user can adjust the oxygen supply flow rate and the oxygen supply mode at the same time through the adjustment ring 3, which is convenient for the user to operate.

[0038] In a specific embodiment, Figure 5 and Fig. 9As shown, the air inlet channel 21 includes a first branch channel 211, a buffer chamber and a second branch channel 212 which are connected in sequence, and the elastic flow regulating component 5 is arranged in the buffer chamber, one end of the elastic flow regulating component 5 is in contact with the inner wall of the adjusting ring 3, and the other end is opposite to the air outlet of the air inlet channel, and the opening size of the air outlet of the air inlet channel is adjusted by rotating the adjusting ring 3 to control the gas flow size entering the pulse outlet channel 22 and the continuous outlet channel 23; the elastic flow regulating component 5 includes a flow regulating valve seat 51, a flow regulating valve stem 5 2 and a first elastic component 53; the flow regulating valve seat 51 is fixedly arranged in the buffer cavity, and is provided with an accommodating cavity for installing the flow regulating valve stem 52, and the flow regulating valve stem 52 is arranged in the accommodating cavity; the inner wall of the adjusting ring 3 is provided with an adjusting groove 31 all around, and the axis A of the adjusting ring 3 is different from the axis B of the adjusting groove 31, one end of the flow regulating valve stem 52 is matched and arranged in the adjusting groove 31, and the other end is sleeved with the first elastic component 53, and one end of the first elastic component 53 is in contact with the valve body 2.

[0039] Specifically, in this embodiment, the flow regulating valve seat 51 is fixed in the buffer cavity by a threaded connection, and the flow regulating valve seat 51 and the flow regulating valve stem 52 are both provided with grooves for installing sealing rings, which are used to install sealing rings to prevent gas from flowing out from the gap between the flow regulating valve seat 51 and the buffer cavity and the gap between the flow regulating valve seat 51 and the flow regulating valve stem 52.

[0040] Specifically, in this embodiment, Figure 5 The flow regulating valve stem 52 shown includes a first connecting rod 521 and a second connecting rod 522 connected in sequence, the first connecting rod 521 is arranged on one side of the first branch channel 211, and is sleeved with a first elastic component 53, the diameter of the first connecting rod 521 at one end close to the first branch channel 211 is smaller than the diameter of the first branch channel 211, and the diameter of the first connecting rod 521 at one end away from the first branch channel 211 is larger than the diameter of the first branch channel 211; the second connecting rod 522 is arranged on a side close to the adjusting ring 3, and the second connecting rod 522 is provided with a clamping ring, the flow regulating valve seat 51 is provided with a corresponding clamping groove, and the second connecting rod 522 is matched and clamped with the flow regulating valve seat 51.

[0041] In this embodiment, preferably, one end of the first connecting rod 521 close to the first branch channel 211 is set as a cone structure, and the opening size of the air outlet of the first branch channel is controlled by adjusting the relative position of the cone structure and the first branch channel 211.

[0042] In this embodiment, preferably, one end of the second connecting rod 522 disposed in the adjustment groove 31 is configured as a spherical structure. Specifically, since the adjustment groove 31 is an arc-shaped groove, a spherical structure matching the arc-shaped groove is correspondingly configured, so that the adjustment process can be implemented more smoothly.

[0043] Specifically, in this embodiment, a buffer cavity is provided between the first branch channel 211 and the second branch channel 212, and an elastic flow regulating component 5 is provided in the buffer cavity. Initially, the opening of the first branch channel is the largest. Fig.10 As shown, in this embodiment, by symmetrically processing grooves with gradual depth on the inner wall of the adjusting ring 3, the axis A of the adjusting ring 3 is different from the axis B of the adjusting groove 31, that is, the axis of the pulse mode groove 311 or the continuous mode groove 312 coincides with the axis B, and both are different from the axis A of the adjusting ring 3, thereby achieving the purpose of adjusting the oxygen supply flow by rotating the adjusting ring 3. The specific working process is that when the adjusting ring 3 is rotated to make the axis B of the adjusting groove 31 move in the direction close to the axis A, the adjusting ring 3 will push the flow regulating valve stem 52 to gradually approach the axis A. When the adjusting ring 3 is rotated to make the axis B of the adjusting groove 31 move away from the axis A, the elastic force generated by the first elastic component 53 will push the regulating valve stem 52 to gradually move away from the air outlet of the first branch channel, thereby increasing the opening of the air outlet of the first branch channel and gradually increasing the oxygen supply flow rate. Through this structure, the oxygen supply flow rate can be steplessly adjusted according to actual needs, and it is convenient and quick.

[0044] In a specific embodiment, Figure 2 and Figure 3 As shown, the continuous air outlet channel 23 includes a first mounting groove, and the elastic switching component 6 is arranged in the first mounting groove; the elastic switching component 6 includes a switching valve seat 61, a switching valve stem 62 and a second elastic component 63; the switching valve seat 61 is fixedly arranged in the first mounting groove, the switching valve stem 62 is movably connected to the switching valve seat 61, and one end of the switching valve stem 62 is opposite to one end surface of the adjusting ring 3, and the other end is abutted against the inner wall of the first mounting groove through the second elastic component 63, when the adjusting ring 3 is pushed to separate the switching valve seat 61 from the switching valve stem 62, the continuous air outlet channel 23 is connected to the air outlet connector 1; when the adjusting ring 3 is pulled to make the switching valve seat 61 fit the switching valve stem 62, the continuous air outlet channel 23 is disconnected from the air outlet connector 1.

[0045] In a specific embodiment, Figure 7 and Figure 8As shown, the adjustment groove 31 includes adjacent pulse mode grooves 311 and continuous mode grooves 312, and a plurality of elastic top screws 24 are provided at the edge of the valve body 2; when the oxygen supply mode is the pulse mode, one end of the plurality of elastic top screws 24 is clamped in the pulse mode groove 311; when the oxygen supply mode is the continuous mode, one end of the plurality of elastic top screws 24 is clamped in the continuous mode groove 312.

[0046] Specifically, in this embodiment, by setting the pulse mode groove 311 and the continuous mode groove 312, the user can adjust the oxygen supply flow by rotating the adjustment ring 3 in each corresponding mode groove, and can also switch different mode grooves to switch the oxygen supply mode to the continuous mode or the pulse mode.

[0047] Specifically, in the present embodiment, preferably, the number of the elastic top screws is four, and grooves for installing the elastic top screws are machined in the valve body 2, so that the elastic top screws 24 are symmetrically arranged in pairs in the valve body 2, and the valve body 2 is installed on the inner side of the adjusting ring 3 by the elastic deformation characteristics of the elastic top screws, and this structure is convenient for installation operation; at the same time, when the oxygen supply mode is switched, the elastic top screw 24 matches the pulse mode groove 311 or the continuous mode groove 312, so as to play a role in fixing the oxygen supply mode and ensure the stability of the oxygen-saving valve. For example, when the oxygen supply mode is the continuous mode, the second elastic component 63 is in a compressed state, and an elastic force is generated to push the switching valve stem 62 to fit the switching valve seat 61. At this time, the elastic top screw 24 is stuck in the continuous mode groove 312, so that the oxygen supply mode can be kept in the continuous mode; when the oxygen supply mode is the pulse mode, the elastic top screw 24 is stuck in the pulse mode groove 311, so that the pulse mode can be maintained while ensuring the stable installation of the adjusting ring 3.

[0048] In a specific embodiment, Figure 3 As shown, the switching valve seat 61 is provided with an accommodating cavity for accommodating the switching valve rod 62, and the switching valve rod 62 is arranged in the accommodating cavity; the switching valve rod 62 includes a third connecting rod 621 and a fourth connecting rod 622, the third connecting rod 621 is arranged on a side close to the second elastic component 63, and the fourth connecting rod 622 is arranged on a side close to an end surface of the adjusting ring 3, and the diameter of the third connecting rod 621 is greater than the diameter of the fourth connecting rod 622; the continuous air outlet channel 23 also includes a first air outlet channel 231 and a second air outlet channel 232 respectively connected to the first mounting groove, the side wall of the switching valve seat 61 is provided with a first through hole 611 connected to the first air outlet channel 231, and a sealing ring 621A is provided at the edge of the third connecting rod 621, and the sealing ring 621A is arranged between the first through hole 611 and the second air outlet channel 232.

[0049] Specifically, in this embodiment, Figure 3 As shown, the third connecting rod 621 is provided with an elastic component groove for installing the second elastic component 63, one end of the elastic component 63 is arranged in the elastic component groove, and the other end abuts against the inner wall of the first mounting groove. Specifically, the elastic component groove can limit the position of the second elastic component 63, while ensuring uniform force, so as to better realize the switching operation of the oxygen supply mode.

[0050] Specifically, Figure 3 As shown, in this embodiment, the end of the switching valve stem 62 opposite to one end face of the adjusting ring 3 is set as a spherical structure. Specifically, this structure can ensure that when the adjusting ring 3 pushes the switching valve stem 62, the switching valve stem 62 is more evenly stressed, thereby making it easier to adjust the oxygen supply mode.

[0051] Specifically, in this embodiment, Figure 3 As shown, the diameter of the third connecting rod 621 gradually decreases in the direction approaching the fourth connecting rod 622, and a groove for installing a sealing ring 621A is provided at the edge of the third connecting rod 621, and the sealing ring 621A is installed in the groove, wherein the sealing ring 621A is an O-ring; when in the pulse mode, the third connecting rod 621 fits with the inner wall of the switching valve seat 61 through the O-ring, and the part of the switching valve seat 61 that fits with the O-ring is a conical structure, so that the O-ring can better fit with the inner wall of the switching valve seat 61, thereby more effectively sealing and preventing gas from flowing from the first through hole 611 to the second air outlet channel 232; at the same time, in this embodiment, a sealing ring (not shown in the figure) is provided between the fourth connecting rod 622 and the switching valve seat 61, which is used to prevent gas from flowing out from the gap between the switching valve seat 61 and the fourth connecting rod 622, thereby avoiding gas loss and waste.

[0052] Specifically, the working process of switching the oxygen supply mode includes: a) when the adjusting ring 3 is pushed in the direction close to the valve body 2, that is, when the oxygen supply mode is the continuous mode, the end face of the adjusting ring 3 abuts against one end of the switching valve stem 62, thereby pushing the switching valve stem 62 to be separated from the inner wall of the switching valve seat 61, so that the first through hole 611 is connected with the second gas outlet channel 232, at this time, the second elastic component 63 is in a compressed state, and the elastic top screw 24 is clamped in the continuous mode groove 312; b) when the adjusting ring 3 is pulled in the direction away from the valve body 2, that is, when the oxygen supply mode is the pulse mode, due to the elastic force of the second elastic component 63, the switching valve stem 62 is pushed to be in a state of being in contact with the inner wall of the switching valve seat 61, so that the first through hole 611 is disconnected from the second gas outlet channel 232, and the gas can only enter the pulse gas outlet channel 22. Therefore, by turning the adjusting ring 3, the switching between the continuous mode and the pulse mode can be achieved. In this embodiment, in the continuous mode, since the negative pressure generated by inhalation is much smaller than the positive pressure generated by the continuous gas supply, the trigger component 4 continuously blocks the gas from entering the gas outlet connector 1 through the pulse gas outlet channel 22, so pulse oxygen supply cannot be performed.

[0053] In a specific embodiment, Figure 2 and Figure 5 As shown, the air outlet connector 1 includes a connecting component 11, an air outlet component 12, an adjusting knob 13 and a sensitivity adjusting component 14; the connecting component 11 is provided with a accommodating cavity and an air inlet 111 and an air outlet 112 communicated with the accommodating cavity, the sensitivity adjusting component 14 is arranged in the accommodating cavity, and is provided with a third air outlet channel communicated with the air inlet 111 and the air outlet 112, one end of the sensitivity adjusting component 14 is matched and connected with the adjusting knob 13, and the other end is abutted with the trigger component 4; the air outlet component 12 is sleeved on the outer wall of the connecting component 11, and is provided with a fourth air outlet channel communicated with the air outlet 112; the adjusting knob 13 is rotated to make the sensitivity adjusting component 14 move in a direction close to or away from the adjusting knob 13, thereby correspondingly reducing or increasing the resistance of the sensitivity adjusting component 14 to the trigger component 4, so as to adjust the trigger sensitivity of the trigger component 4 during inhalation.

[0054] In a specific embodiment, Figure 2 and Figure 4As shown, the sensitivity adjustment component 14 includes an adjustment rod 141 and a third elastic component 142; one end of the adjustment rod 141 is clamped with the adjustment knob 13, and the other end is provided with a mounting groove for installing the third elastic component 142, and the outer wall is provided with a first retaining ring C, the third elastic component 142 is arranged in the mounting groove, and abuts against the trigger component 4; the side wall of the adjustment rod 141 close to the air outlet 112 is provided with a plurality of second through holes 141A, and the second through holes 141A are connected to the air outlet 112.

[0055] Specifically, the adjusting rod 141 is arranged in the accommodating cavity through a thread. When the adjusting knob 13 is rotated, the adjusting rod 141 will be driven to rotate synchronously therewith, thereby loosening or tightening the adjusting rod 141; when the adjusting rod 141 is in a tightened state, the third elastic component 142 is in a compressed state in the mounting groove. In the process of loosening the adjusting rod 141, the adjusting rod 141 will move in a direction away from the trigger assembly 4 relative to the adjusting knob 13. At this time, the pressure of the adjusting rod 141 on the third elastic component 142 is reduced, so the elastic force of the third elastic component 142, that is, the resistance to the trigger assembly 4, also gradually decreases, thereby achieving an operation of improving the trigger sensitivity. Similarly, in the process of tightening the adjusting rod 141, the adjusting rod 141 will move in a direction close to the trigger assembly 4 relative to the adjusting knob 13. At this time, the pressure of the adjusting rod 141 on the third elastic component 142 increases, so the elastic force of the third elastic component 142, that is, the resistance to the trigger assembly 4, also gradually increases, thereby achieving an operation of reducing the trigger sensitivity. In this embodiment, the first retaining ring C is provided to limit the adjusting rod 141 to prevent the adjusting rod 141 from being separated from the threaded area during the adjustment process, thereby ensuring that the subsequent adjustment of the trigger sensitivity is carried out smoothly.

[0056] Specifically, in this embodiment, Figure 4 and Figure 5 As shown, the adjusting knob 13 includes a fixing rod 131 and a limiting rod 132 arranged in the accommodating cavity; the fixing rod 131 is arranged at an end away from the adjusting rod 141, and the limiting rod 132 is arranged at an end close to the adjusting rod 141; the end of the connecting component 11 close to the fixing rod 131 is provided with a first groove, and the outer wall of the fixing rod 131 is provided with a protrusion, and a protrusion is provided between the first groove and the protrusion as shown in FIG. Figure 8 The second retaining ring D is shown; the end of the adjusting rod 141 close to the limiting rod 132 is provided with a second groove for accommodating the limiting rod 132, and the limiting rod 132 is engaged with the adjusting rod 141 through the second groove, so that the adjusting rod 141 and the limiting rod 132 rotate synchronously.

[0057] Specifically, in this embodiment, one end of the limiting rod 132 disposed in the second groove is a hexagonal prism structure. The hexagonal prism structure can ensure that when the adjusting knob 13 rotates, the adjusting rod 141 rotates synchronously therewith. In practice, any structure that can ensure that the adjusting rod 141 rotates synchronously with the adjusting knob 13 can be adopted.

[0058] Specifically, the adjusting knob 13 and the connecting component 11 are fixedly connected in the axial direction via the second retaining ring D, while ensuring that the adjusting knob 13 can be rotated to any angle, thereby achieving flexible control of the adjusting rod 141 .

[0059] Specifically, in this embodiment, Figure 2 and Figure 4 As shown, the gas outlet component 12 includes a gas outlet ring 121 and a gas outlet nozzle 122; the gas outlet ring 121 is sleeved on the outer wall of the connecting component 11, and the gas outlet nozzle 122 is arranged on the side wall of the gas outlet ring 121; the fourth gas outlet channel includes a gas storage tank 121A arranged on the inner wall of the gas outlet ring 121 all around and a third channel 122A arranged in the gas outlet nozzle 122, and the gas storage tank 121A and the third channel 122A are both connected to the gas outlet 112. Specifically, the arrangement of the gas storage tank 121A enables the gas to enter the third channel 122A from the gas outlet 112 more smoothly, thereby ensuring smooth oxygen supply.

[0060] Specifically, in this embodiment, Figure 2 As shown, the connecting component 11 includes a connecting cover 113 and a connecting ring 114. One end surface of the connecting cover 113 abuts against a portion of the trigger assembly 4 to form a Figure 8 The first chamber 113A shown in the figure, the other end surface of the connecting cover 113 is provided with a connecting ring 114, and the connecting ring 114 is provided with a second chamber connected to the first chamber 113A; the air outlet 112 is arranged on the side wall of the connecting ring 114; the outer wall of the connecting ring 114 close to the end of the fixing rod 131 is provided with a third groove, and a space is provided between the third groove and the air outlet ring 121 as shown in the figure. Figure 8 The third retaining ring E is shown.

[0061] Specifically, in this embodiment, Figure 5 As shown, the adjusting knob 13 also includes an adjusting cover 133. The adjusting cover 133 is provided to facilitate the rotation of the adjusting knob 13, and the outer wall of the adjusting cover 133 is a concave-convex structure, which makes it more convenient for users to adjust by increasing the friction. The third retaining ring E is provided to limit the outlet component 12 below the adjusting cover 133, limiting the axial movement of the outlet component 12, while ensuring that it can rotate at any angle along the circumferential direction to ensure smooth air discharge.

[0062] Specifically, in this embodiment, a plurality of sealing rings (not shown) are provided between the connecting ring 114 and the air outlet ring 121, and between the connecting ring 114 and the adjusting rod 141, so as to avoid the loss and waste of gas during the oxygen supply process.

[0063] In a specific embodiment, Figure 6 and Figure 8 As shown, a trigger assembly mounting groove is provided at the center of the valve body 2, and the trigger assembly 4 includes a pilot diaphragm 41, a fixing plate 42 and a main valve diaphragm 43, and the main valve diaphragm 43, the fixing plate 42 and the pilot diaphragm 41 are sequentially arranged in the trigger assembly mounting groove along the axial direction of the valve body 2; a first valve cavity 421 is formed between the fixing plate 42 and the main valve diaphragm 43, and a second valve cavity 422 is formed between the fixing plate 42 and the pilot diaphragm 41, and a side wall of the valve body 2 is provided with a valve body 422 connected to the second valve cavity 422. Fig. 9 The outlet gas path 25 is shown; the main valve diaphragm 43 is in contact with the pulse outlet channel inlet 22A; a third through hole 423 is provided at the center position of the fixed plate 42; the pilot diaphragm 41 is in contact with the third elastic component 142, and is in contact with the third through hole 423 under the elastic force of the third elastic component 142.

[0064] In a specific embodiment, Figure 2 As shown, the mechanical pulse oxygen-saving valve also includes a micropore needle valve 7, and the interior of the valve body 2 is also provided with Figure 8 The pressure regulating channel 26 shown is respectively connected to the air inlet channel 21 and the first valve chamber 421; the pressure regulating channel 26 includes a micropore needle valve mounting groove, the micropore needle valve 7 is arranged in the micropore needle valve mounting groove, and one end is opposite to the air inlet of the pressure regulating channel, and the opening size of the air inlet of the pressure regulating channel is adjusted by adjusting the micropore needle valve 7 to control the gas flow rate entering the first valve chamber 421.

[0065] Specifically, in this embodiment, the pulse oxygen supply process is controlled by setting a trigger component 4, and the control process is as follows: during inhalation, the gas in the first chamber 113A flows out, and the negative pressure generated by the inhalation at this time causes the pilot diaphragm 41 to move toward the direction close to the third elastic component 142, so that the third through hole 423 is in an open state, and the gas in the first valve cavity 421 flows into the second valve cavity 422 through the third through hole 423, and flows to the atmosphere through the gas outlet path 25, so that the air pressure in the first valve cavity 421 is reduced, and the negative pressure generated at this time causes the main valve diaphragm 43 Move in the direction close to the fixed plate 42, so that the pulse outlet channel air inlet 22A is in an open state, so that the gas can enter the outlet connector 1 through the pulse outlet channel to perform pulse oxygen supply; when exhaling, the pilot diaphragm 41 is attached to the third through hole 423 under the action of the exhalation pressure. At this time, the gas in the air inlet channel 21 enters the first valve chamber 421 through the pressure regulating channel 26, so that the air pressure in the first valve chamber 421 increases, and the main valve diaphragm 43 is attached to the pulse outlet channel air inlet 22A, closing the pulse air inlet channel 22 and stopping the pulse oxygen supply. Therefore, the setting of the trigger component 4 realizes the pulse oxygen supply function of providing oxygen during oxygen inhalation and stopping oxygen supply during exhalation.

[0066] Specifically, in the present embodiment, the principle and process of adjusting the trigger sensitivity of the trigger component 4 are as follows: when the user inhales, the negative pressure generated will generate an upward suction force on the leading diaphragm 41, and at the same time, the leading diaphragm 41 is also subject to the downward resistance generated by the third elastic component 142. At this time, it is necessary to coordinate the size relationship between the suction force and the resistance, so that the user can suck up the leading diaphragm 41 and the trigger sensitivity meets the breathing conditions, so that the gas can enter the air outlet connector through the pulse air inlet channel 22, and finally provide pulse oxygen to the user; therefore, the adjustment of the trigger sensitivity is to adjust the size relationship between the suction force and the resistance; if the resistance is small, the leading diaphragm 41 is easy to be sucked up, then the sensitivity is high, otherwise the sensitivity is low. In this embodiment, an adjusting knob 13 and a sensitivity adjusting component 14 are provided, wherein the third elastic component 142 is in contact with the leading diaphragm 41, generating resistance to the movement of the leading diaphragm 41. The position of the adjusting rod 141 is adjusted by adjusting the knob 13 to control the resistance of the third elastic component 142 to the leading diaphragm 41, thereby changing the triggering sensitivity of the leading diaphragm 41, so that the user can adjust the triggering sensitivity according to his or her actual breathing situation, thereby meeting the oxygen supply triggering demand while saving oxygen. The specific adjustment process is: when the user needs the trigger sensitivity of the pilot diaphragm 41 to be high, the user rotates the adjustment knob 13 to reduce the pressure of the adjustment rod 141 on the third elastic component 142 and thereby reduce the elastic force of the third elastic component 142. At this time, the resistance of the pilot diaphragm 41 is reduced, and it is easier for the user to inhale the pilot diaphragm 41; when the user needs the trigger sensitivity of the pilot diaphragm 41 to be low, the user rotates the adjustment knob 13 to increase the pressure of the adjustment rod 141 on the third elastic component 142 and thereby increase the elastic force of the third elastic component 142. At this time, the resistance of the pilot diaphragm 41 is large, and it is not easy for the user to inhale the pilot diaphragm 41; for example, for users with weak breathing, the pilot diaphragm 41 can be set to a higher sensitivity accordingly, so that they can obtain oxygen supply more easily; for users with strong breathing, the pilot diaphragm 41 can be set to a lower sensitivity accordingly, so that they can obtain the oxygen supply that meets their needs and avoid gas waste.

[0067] Specifically, in this embodiment, the pilot diaphragm 41 and the main valve diaphragm 43 are both made of soft rubber material and are fixed by installation and extrusion; the fixing plate 42 is made of metal and is fixed by screws.

[0068] Specifically, in the present embodiment, the micropore needle valve 7 is installed in the micropore needle valve installation groove by means of a threaded connection, and the position of the micropore needle valve 7 is usually adjusted and determined during installation so that the opening size of the air inlet of the pressure regulating channel is appropriate, ensuring that the air pressure in the first valve chamber 421 satisfies the condition for making the main valve diaphragm 43 and the air inlet 22A of the pulse outlet channel stick to or separate.

[0069] Specifically, in this embodiment, the first elastic component 53 , the second elastic component 63 and the third elastic component 142 are all springs.

[0070] Specifically, in this embodiment, the flow direction of the gas in the oxygen-saving valve is as follows: Figure 8 and Fig. 9 As shown, first, the gas enters the air inlet channel 21 in the valve body 2, and the gas flow rate is adjusted by the elastic flow regulating component 5 in the air inlet channel 21. After the gas flow rate is adjusted, the gas flowing out of the air inlet channel 21 is divided into three paths, one path enters the continuous air outlet channel 23, one path enters the pulse air outlet channel 22, and one path enters the pressure regulating channel 26. The elastic switching component 6 is used to control whether the gas entering the continuous air outlet channel 23 can finally enter the air outlet connector 1, and flow out from the air outlet connector 1 to supply oxygen. The gas entering the pulse air outlet channel 22 cooperates with the trigger component 4. When the user inhales, oxygen flows out from the air outlet connector 1, and the gas entering the pressure regulating channel 26 finally enters the first valve chamber 421, thereby ensuring smooth pulse oxygen supply.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A mechanical pulse oxygen-saving valve, characterized in that: It comprises an air outlet connector (1), a valve body (2), an adjusting ring (3), a trigger component (4), an elastic flow regulating component (5) and an elastic switching component (6); One end of the valve body (2) is matched and mounted on the inner side of the adjusting ring (3), and the other end is connected to the air outlet connector (1), and the trigger component (4) is provided between the valve body (2) and the air outlet connector (1); The valve body (2) is provided with an air inlet channel (21), a pulse air outlet channel (22) and a continuous air outlet channel (23) inside, and the pulse air outlet channel (22) and the continuous air outlet channel (23) can both be connected to the air inlet channel (21) and the air outlet connector (1) at the same time; The elastic flow regulating component (5) is arranged in the air inlet channel (21) and abuts against the inner wall of the regulating ring (3), and controls the flow rate of gas entering the pulse outlet channel (22) and the continuous outlet channel (23) through the air inlet channel (21) by rotating the regulating ring (3); The gas outlet connector (1) cooperates with the trigger component (4) to control whether gas can enter the gas outlet connector (1) via the pulse gas outlet channel (22); The elastic switching component (6) is arranged in the continuous air outlet channel (23), and the separation or adhesion of the elastic switching component (6) is controlled by turning the adjustment ring (3), thereby controlling whether the gas can enter the air outlet connector (1) through the continuous air outlet channel (23).

2. The mechanical pulse oxygen-saving valve according to claim 1, characterized in that: The air inlet channel (21) comprises a buffer cavity, the elastic flow regulating component (5) is arranged in the buffer cavity, one end of the elastic flow regulating component (5) is in contact with the inner wall of the adjusting ring (3), and the other end is opposite to the air outlet of the air inlet channel, and the opening size of the air outlet of the air inlet channel is adjusted by rotating the adjusting ring (3) to control the gas flow size entering the pulse outlet channel (22) and the continuous outlet channel (23); The elastic flow regulating assembly (5) comprises a flow regulating valve seat (51), a flow regulating valve stem (52) and a first elastic component (53); The flow regulating valve seat (51) is fixedly arranged in the buffer cavity, and is provided with a receiving cavity for installing the flow regulating valve stem (52), and the flow regulating valve stem (52) is arranged in the receiving cavity; The inner wall of the adjusting ring (3) is provided with an adjusting groove (31) around its entire circumference, and the axis A of the adjusting ring (3) is different from the axis B of the adjusting groove (31); one end of the flow regulating valve stem (52) is matchedly arranged in the adjusting groove (31), and the other end is sleeved with the first elastic component (53), and one end of the first elastic component (53) is in contact with the valve body (2).

3. The mechanical pulse oxygen-saving valve according to claim 2, characterized in that: The continuous air outlet channel (23) comprises a first installation groove, and the elastic switching component (6) is arranged in the first installation groove; The elastic switching assembly (6) comprises a switching valve seat (61), a switching valve stem (62) and a second elastic component (63); The switching valve seat (61) is fixedly arranged in the first installation groove, the switching valve rod (62) is movably connected to the switching valve seat (61), and one end of the switching valve rod (62) is opposite to one end surface of the adjusting ring (3), and the other end is in contact with the inner wall of the first installation groove through the second elastic component (63). When the adjusting ring (3) is pushed to separate the switching valve seat (61) from the switching valve rod (62), the continuous air outlet channel (23) is connected to the air outlet connector (1); when the adjusting ring (3) is pulled to make the switching valve seat (61) and the switching valve rod (62) fit together, the continuous air outlet channel (23) is disconnected from the air outlet connector (1).

4. The mechanical pulse oxygen-throttling valve according to claim 3, characterized in that: The regulating groove (31) comprises adjacent pulse mode grooves (311) and continuous mode grooves (312), and a plurality of elastic top screws (24) are provided at the edge of the valve body (2); When the oxygen supply mode is the pulse mode, one end of a plurality of the elastic top screws (24) is snapped into the pulse mode groove (311); when the oxygen supply mode is the continuous mode, one end of a plurality of the elastic top screws (24) is snapped into the continuous mode groove (312).

5. The mechanical pulse oxygen-throttling valve according to claim 3, characterized in that: The switching valve seat (61) is provided with a receiving cavity for receiving the switching valve rod (62), and the switching valve rod (62) is arranged in the receiving cavity; The switching valve rod (62) comprises a third connecting rod (621) and a fourth connecting rod (622), wherein the third connecting rod (621) is arranged on a side close to the second elastic component (63), and the fourth connecting rod (622) is arranged on a side close to an end surface of the adjusting ring (3), and the diameter of the third connecting rod (621) is greater than the diameter of the fourth connecting rod (622); The continuous air outlet channel (23) further comprises a first air outlet channel (231) and a second air outlet channel (232) respectively connected to the first mounting groove; a side wall of the switching valve seat (61) is provided with a first through hole (611) connected to the first air outlet channel (231); a sealing ring (621A) is provided at an edge position of the third connecting rod (621), and the sealing ring (621A) is arranged between the first through hole (611) and the second air outlet channel (232).

6. The mechanical pulse oxygen-saving valve according to claim 1, characterized in that: The air outlet connector (1) comprises a connecting component (11), an air outlet component (12), an adjusting knob (13) and a sensitivity adjusting component (14); The connecting component (11) is provided with a receiving cavity and an air inlet (111) and an air outlet (112) in communication with the receiving cavity; the sensitivity adjustment component (14) is arranged in the receiving cavity and is provided with a third air outlet channel in communication with the air inlet (111) and the air outlet (112); one end of the sensitivity adjustment component (14) is matched and connected with the adjustment knob (13), and the other end is in contact with the trigger component (4); the air outlet component (12) is sleeved on the outer wall of the connecting component (11) and is provided with a fourth air outlet channel in communication with the air outlet (112); By rotating the adjusting knob (13), the sensitivity adjusting component (14) is moved in a direction approaching or moving away from the adjusting knob (13), thereby correspondingly reducing or increasing the resistance of the sensitivity adjusting component (14) to the trigger component (4), so as to adjust the trigger sensitivity of the trigger component (4) during inhalation.

7. The mechanical pulse oxygen-throttling valve according to claim 6, characterized in that: The sensitivity adjustment component (14) comprises an adjustment rod (141) and a third elastic component (142); One end of the adjusting rod (141) is clamped with the adjusting knob (13), and the other end is provided with a mounting groove for mounting a third elastic component (142) and a first retaining ring (C) is provided on the outer wall; the third elastic component (142) is arranged in the mounting groove and abuts against the trigger assembly (4); A plurality of second through holes (141A) are provided on the side wall of the adjustment rod (141) close to the air outlet (112), and the second through holes (141A) are connected to the air outlet (112).

8. The mechanical pulse oxygen-throttling valve according to claim 7, characterized in that: A trigger assembly installation groove is provided at the center of the valve body (2); the trigger assembly (4) comprises a pilot diaphragm (41), a fixing plate (42) and a main valve diaphragm (43); and the main valve diaphragm (43), the fixing plate (42) and the pilot diaphragm (41) are sequentially arranged in the trigger assembly installation groove along the axial direction of the valve body (2); A first valve cavity (421) is formed between the fixing plate (42) and the main valve diaphragm (43), and a second valve cavity (422) is formed between the fixing plate (42) and the pilot diaphragm (41); a side wall of the valve body (2) is provided with an air outlet path (25) connected to the second valve cavity (422); The main valve diaphragm (43) is in contact with the air inlet (22A) of the pulse air outlet channel; A third through hole (423) is provided at the center of the fixing plate (42); The pilot diaphragm (41) is in contact with the third elastic component (142), and is in contact with the third through hole (423) under the elastic force of the third elastic component (142).

9. The mechanical pulse oxygen-throttling valve according to claim 8, characterized in that: It also includes a micropore needle valve (7), and a pressure regulating channel (26) is provided inside the valve body (2), and the pressure regulating channel (26) is respectively connected to the air inlet channel (21) and the first valve chamber (421); The pressure regulating channel (26) comprises a micropore needle valve mounting groove, the micropore needle valve (7) is arranged in the micropore needle valve mounting groove, and one end is opposite to the air inlet of the pressure regulating channel. By adjusting the micropore needle valve (7), the opening size of the air inlet of the pressure regulating channel is adjusted to control the gas flow rate entering the first valve chamber (421).

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