Oxygen production valve and oxygen generator with same

Abstract

The invention relates to the technical field of oxygen generation valves, and discloses an oxygen generation valve and an oxygen generator with the oxygen generation valve.The oxygen generation valve comprises an upper valve body and a lower valve body which are fixedly installed, a base is installed at the bottom of the lower valve body, an air inlet unit is arranged between the base and the lower valve body, and the air inlet unit comprises an air inlet cavity and a first pipe cavity; an air outlet is formed in one side of the lower valve body; a control unit is arranged on the upper valve body and comprises a pilot valve installed on the top of the upper valve body, and the control unit further comprises a first branch pipe arranged on the upper valve body and the lower valve body, a second branch pipe arranged on the upper valve body and a third branch pipe arranged on the upper valve body. The first piston and the second piston are arranged to seal the oxygen generation valve, the situation that outside air enters the oxygen generator through the air outlet to pollute the molecular sieve after entering the oxygen generator when the oxygen generator is not used is avoided, two-stage buffering is carried out by arranging the buffering cavity and the exhaust cavity, and noise generated when the oxygen generation valve exhausts is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of oxygen-generating valves, and in particular, relates to an oxygen-generating valve and an oxygen generator having the oxygen-generating valve. Background Art

[0002] There are many problems in the design of traditional oxygen valves that affect the performance and user experience of oxygen production equipment. For example, the unreasonable design of the air intake and exhaust structure leads to large pressure fluctuations and high noise; the diaphragm piston design limits the life of the oxygen valve; there is a lack of effective dust isolation measures and noise elimination design; the oxygen valve interfaces on the market are diverse, the product models are complex, and it is not conducive to large-scale production. In addition, the existing oxygen valves are insufficient in preventing water vapor from entering the molecular sieve, which will cause the molecular sieve to have a lower oxygen concentration due to moisture, the machine will be scrapped, or the molecular sieve needs to be replaced frequently, affecting the stability and service life of the oxygen production equipment.

[0003] A Chinese patent with authorization announcement number CN221922163U discloses an oxygen-generating valve, including an oxygen-generating valve body, a trachea interface being provided on the oxygen-generating valve body, an oxygen tube being connected to the trachea interface, a sealing mechanism being provided between the oxygen tube and the trachea interface, a placement plate being provided on one side of the oxygen-generating valve body, a quick-release component being provided on a side of the oxygen-generating valve body close to the placement plate, the oxygen-generating valve body being mounted on the placement plate through the quick-release component, a fixing component being provided on the placement plate, the sealing performance between the oxygen interface on the oxygen-generating valve body and the oxygen tube being enhanced through the provision of the sealing mechanism, the oxygen-generating valve body being able to be quickly assembled and disassembled onto equipment through the cooperation of the placement plate, the quick-release component and the fixing component, thereby improving the assembly and disassembly speed of the oxygen-generating valve body.

[0004] However, this technical solution still has at least the following defects: the oxygen valve in the above solution cannot prevent water vapor from entering the molecular sieve, and noise problems will also occur during use. The quick-release design of the oxygen valve in the device is limited to installing the oxygen valve as a whole on the device to maintain stability, and does not have the function of quick release at the valve port. The installation at the valve port still requires nuts and the like for tightening. Compared with the valve port installation of the traditional oxygen valve, it does not have a significantly simplified operation. In addition, the solution relies on the arc buckle to apply pressure to increase the sealing performance, and the pressure applied by the arc buckle acts in one direction. The lack of pressure in the direction perpendicular to it will lead to a lack of sealing performance. In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an oxygen making valve and an oxygen making machine having the oxygen making valve. The oxygen making valve is sealed by arranging a first piston and a second piston to prevent outside air from entering the oxygen making machine through the air outlet when not in use and contaminating the molecular sieve. A buffer chamber and an exhaust chamber are arranged for double-stage buffering to reduce the noise generated when the oxygen making valve is exhausted.

[0006] The technical solution adopted by the present invention to solve its technical problem is: An oxygen-generating valve, comprising an upper valve body and a lower valve body which are fixedly installed, a base being installed at the bottom of the lower valve body, an air intake unit being arranged between the base and the lower valve body, the air intake unit comprising an air intake cavity and a first tube cavity, the air intake cavity being arranged on the base, the first tube cavity being arranged on the lower valve body, an air outlet being arranged on one side of the lower valve body, and the air outlet being communicated with the air intake cavity through the first tube cavity; A control unit is provided on the upper valve body, and the control unit includes a pilot valve installed on the top of the upper valve body. The control unit also includes a first branch pipe opened on the upper valve body and the lower valve body, and a second branch pipe and a third branch pipe opened on the upper valve body. The air intake chamber is connected to the pilot valve through the first branch pipe, the second branch pipe and the third branch pipe.

[0007] A first piston is movably installed in the first tube cavity, both ends of the first piston are adapted to the first tube cavity, a first return spring is installed at the bottom of the first piston, a bump is installed at the bottom of the air intake cavity, one end of the first return spring is connected to the bump, and a mounting plate is installed on the top of the first piston, and the mounting plate is connected to the pilot valve.

[0008] A buffer cavity is provided inside the upper valve body, and the control unit further comprises a piston plate, the piston plate is located in the buffer cavity, a second piston is installed at the bottom of the piston plate, and a second return spring is installed on the second piston; An exhaust unit is also provided between the base and the lower valve body, and the exhaust unit includes a second tube cavity opened on the lower valve body and an exhaust cavity opened on the base, the exhaust cavity is connected with the buffer cavity through the second tube cavity, an exhaust pipe connected with the exhaust cavity is installed at one end of the base, and an air intake pipe connected with the air intake cavity is installed at the other end of the base.

[0009] A mounting seat is installed on one side of the lower valve body, a valve port seat is installed on one side of the mounting seat, a valve interface is opened on one side of the valve port seat, and the valve interface is communicated with the air outlet; The oxygen-generating valve further comprises: A booster unit, the booster unit comprising a mounting plate, a pulling mechanism being arranged inside the mounting plate, the pulling mechanism being used to provide power for the booster unit; The locking unit is located on the mounting seat, the locking unit includes a locking mechanism, the locking mechanism includes a locking rod, the booster unit drives the locking rod to rotate through a pulling mechanism, the locking unit also includes a pressure mechanism, the pressure mechanism includes a first guide block and a second guide block, and the pressure mechanism applies pressure to the locking rod in the direction of the lower valve body after the locking rod rotates.

[0010] As a preferred embodiment of the present invention, the locking unit also includes a locking control mechanism, which is located on both sides of the mounting seat. The locking control mechanism is used to withstand the pressure applied by the pressure mechanism on the locking rod before the locking rod is completely rotated. Blocking mechanisms are arranged on both sides of the pressure mechanism, which are used to prevent the pressure mechanism from applying pressure before the locking rod rotates. When the locking rod starts to rotate, the blocking mechanism disengages from the pressure mechanism to allow the pressure mechanism to apply pressure to the locking rod.

[0011] As a preferred embodiment of the present invention, grooves are provided on both sides of the mounting seat, a rotating shaft is movably installed inside the groove, the locking rod is fixedly installed in the middle of the rotating shaft, the groove and the rotating shaft are spaced apart in a direction perpendicular to the surface of the lower valve body so that the pressure on the locking rod will not act on the mounting seat, and both ends of the rotating shaft extend to the upper and lower sides of the mounting seat.

[0012] As a preferred embodiment of the present invention, the top and bottom of the mounting seat are both provided with mounting grooves, the pressure mechanism is located inside the mounting groove, the pressure mechanism also includes a positioning block, the positioning block is fixedly installed in the mounting groove, a first telescopic rod is fixedly installed at both ends of the positioning block, a first spring is movably sleeved on the first telescopic rod, one end of the second guide block is fixedly installed on one end of the first telescopic rod, the pressure mechanism also includes a connecting rod, the connecting rod is rotatably connected to the rotating shaft, and the first guide block is fixedly connected to one side of the connecting rod.

[0013] As a preferred embodiment of the present invention, the locking mechanism includes a cover plate installed on the installation slot, the cover plate is provided with a movable slot and a limit slot, the movable slot and the limit slot are connected to each other, limit plates are installed at both ends of the rotating shaft, the width of the limit plate is adapted to the limit slot, and the two ends of the limit plate are adapted to the inner wall of the movable slot; The blocking mechanism comprises a rotating plate and a pushing plate, wherein the pushing plate is fixedly connected to the second guide block, and the rotating plate is fixedly connected to the rotating shaft.

[0014] As a preferred embodiment of the present invention, a locking mechanism is provided on one side of the locking rod, and the locking mechanism includes a support block, a plug rod is slidably installed on one side of the support block, and a slot is opened on one side of the locking rod, and the slot is adapted to the plug rod. The locking mechanism locks the locking rod through the plug rod and the slot, and the locking mechanism also includes an elastic component, which is used to provide a thrust for the movement of the plug rod, and the elastic component includes a second telescopic rod, one end of the second telescopic rod is fixedly installed on the lower valve body, and the other end of the second telescopic rod is fixedly installed with a push rod, the push rod is fixedly connected to the plug rod, and a second spring is movably sleeved on the second telescopic rod.

[0015] As a preferred embodiment of the present invention, a sliding groove is provided on the side of the mounting plate, a slider is slidably installed on the sliding groove, the pulling mechanism includes a tension spring, one end of the tension spring is fixedly connected to a fixed block, the fixed block is fixedly connected to the mounting plate, the other end of the tension spring is fixedly installed to a connecting block, one end of the connecting block is fixedly installed to a connecting plate, the connecting plate is fixedly connected to the slider, and the slider is adapted to the locking rod.

[0016] As a preferred embodiment of the present invention, a telescopic column is fixedly installed on one side of the mounting plate, one end of the telescopic column is fixedly installed on one side of the lower valve body, and a protective shell is fixedly installed on one side of the lower valve body, the telescopic column is located inside the protective shell, a side sealing plate is fixedly installed on the other side of the mounting plate, a gasket is installed on one side of the mounting seat, and the mounting plate is moved by the telescopic column to squeeze the gasket.

[0017] As a preferred embodiment of the present invention, a knob is provided on the top of the mounting seat, and the knob is fixedly mounted on the top of the limiting plate. An external plate is fixedly mounted on one side of the knob, a positioning groove is provided on the external plate, and a positioning rod is installed on the mounting plate, and the positioning rod is adapted to the positioning groove.

[0018] An oxygen concentrator comprises an oxygen concentrator valve and an oxygen concentrator body. A delivery pipe is installed on the oxygen concentrator body. A connector is installed at one end of the delivery pipe. Side frames are installed on both sides of the connector. Adapter rods are fixedly installed on the side frames.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The present invention seals the oxygen making valve by arranging a first piston and a second piston to prevent outside air from entering the oxygen making machine through the air outlet and contaminating the molecular sieve when not in use. A buffer chamber and an exhaust chamber are arranged for double-stage buffering to reduce the noise generated when the oxygen making valve is exhausted.

[0020] The present invention connects the oxygen making valve and the oxygen making machine by arranging a locking unit and a boosting unit, which can be quickly connected and disassembled, has rapid operation, and has good sealing performance; The present invention provides a pressure mechanism so that after the lock rod locks the adapter rod, pressure is applied to the lock rod to act on the adapter rod, thereby maintaining a tight connection state between the oxygen-making valve and the connector, and mutual compression between the two ensures sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the connection state between the oxygen concentrator and the oxygen concentrator valve of the present invention; Figure 2 This is a schematic diagram of the structure of the oxygen production valve housing of the present invention; Figure 3 This is a structural schematic diagram of the telescopic column in the oxygen production valve of the present invention; Figure 4 This is a schematic diagram of the structure of the booster unit in the oxygen production valve of the present invention; Figure 5 This is a schematic diagram of the back structure of the mounting plate in the oxygen-generating valve of the present invention; Figure 6 This is a schematic diagram of the structure of the push rod in the oxygen production valve of the present invention; Figure 7 This is a schematic diagram of the structure of the rod insertion portion of the oxygen production valve of the present invention; Figure 8 This is a structural schematic diagram of the cover plate in the oxygen production valve of the present invention; Fig. 9 This is a schematic diagram of the structure of the push plate in the oxygen production valve of the present invention; Fig.10 This is a structural schematic diagram of the first guide block in the oxygen production valve of the present invention; Fig.11 This is a structural schematic diagram of the rotating shaft of the oxygen production valve of the present invention; Fig.12 This is a schematic diagram of the structure of the oxygen concentrator of the present invention; Fig.13 This is a schematic diagram of the structure of the connector in the oxygen concentrator of the present invention; Fig.14 This is a schematic diagram of the overall structure of the oxygen production valve of the present invention; Fig.15 This is a schematic diagram of the base structure of the present invention; Fig.16 This is a schematic diagram of the internal structure of the oxygen production valve of the present invention; Fig.17 This is a structural schematic diagram of the first piston of the present invention; Fig.18 It is a structural schematic diagram of the second piston of the present invention.

[0022] Reference numerals: 001, upper valve body; 002, lower valve body; 003, base; 004, air inlet cavity; 005, air inlet pipe; 006, bump; 007, first tube cavity; 008, air outlet; 009, first piston; 010, first return spring; 011, mounting plate; 012, pilot valve; 013, buffer cavity; 014, first branch pipe; 015, second branch pipe; 016, third branch pipe; 017, piston plate; 018, second piston; 019, second return spring; 020, second tube cavity; 021, exhaust cavity; 022, exhaust pipe; 101, protective shell; 102, telescopic column; 103, mounting plate; 104, side sealing plate; 105, slide groove; 106, slider; 107, connecting plate; 108, connecting block; 109, tension spring; 110, fixing block; 200, mounting seat; 201, gasket; 202, valve port seat; 203, valve interface; 204, groove; 205, rotating shaft; 206, locking rod; 207, connecting rod; 208, first guide block; 209, positioning block; 210, first telescopic rod; 211, first spring; 212, second guide block; 213, rotating plate; 214, pushing plate; 215, limiting plate; 216, cover plate; 217, movable groove; 218, limiting groove; 300, support block; 301, insertion rod; 302, slot; 303, push rod; 304, second telescopic rod; 305, second spring; 400, knob; 401, external board; 402, positioning slot; 403, positioning rod; 500, oxygen concentrator body; 501, delivery pipe; 502, connector; 503, side frame; 504, adapter rod. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0024] Example 1 like Figures 14 to 18 , an oxygen-generating valve, comprising an upper valve body 001 and a lower valve body 002 which are fixedly installed, a base 003 being installed at the bottom of the lower valve body 002, an air intake unit being arranged between the base 003 and the lower valve body 002, the air intake unit comprising an air intake cavity 004 and a first tube cavity 007, the air intake cavity 004 being arranged on the base 003, the first tube cavity 007 being arranged on the lower valve body 002, an air outlet 008 being arranged on one side of the lower valve body 002, the air outlet 008 being communicated with the air intake cavity 004 through the first tube cavity 007; A control unit is provided on the upper valve body 001, and the control unit includes a pilot valve 012 installed on the top of the upper valve body 001. The control unit also includes a first branch pipe 014 opened on the upper valve body 001 and the lower valve body 002, and a second branch pipe 015 and a third branch pipe 016 opened on the upper valve body 001. The air intake chamber 004 is connected to the pilot valve 012 through the first branch pipe 014, the second branch pipe 015 and the third branch pipe 016.

[0025] like Figures 14 to 18As shown, a first piston 009 is movably installed in the first lumen 007, both ends of the first piston 009 are adapted to the first lumen 007, a first return spring 010 is installed at the bottom of the first piston 009, a bump 006 is installed at the bottom of the air inlet cavity 004, one end of the first return spring 010 is connected to the bump 006, a mounting plate 011 is installed at the top of the first piston 009, and the mounting plate 011 is connected to the pilot valve 012. In this setting, the first piston 009 closes the first lumen 007 and the air inlet cavity 004 under the action of the first return spring 010, preventing external air from entering the molecular sieve through the air inlet pipe 005.

[0026] like Figures 14 to 18 As shown, a buffer cavity 013 is provided inside the upper valve body 001, and the control unit further comprises a piston plate 017, the piston plate 017 is located in the buffer cavity 013, a second piston 018 is installed at the bottom of the piston plate 017, and a second return spring 019 is installed on the second piston 018; An exhaust unit is also provided between the base 003 and the lower valve body 002. The exhaust unit includes a second tube cavity 020 provided on the lower valve body 002 and an exhaust cavity 021 provided on the base 003. The exhaust cavity 021 is connected to the buffer cavity 013 through the second tube cavity 020. An exhaust pipe 022 connected to the exhaust cavity 021 is installed at one end of the base 003, and an intake pipe 005 connected to the intake cavity 004 is installed at the other end of the base 003. In this configuration, the elastic force of the second return spring 019 acts on the second piston 018, so that the buffer cavity 013 and the second tube cavity 020 are sealed, preventing the outside air from entering the molecular sieve through the exhaust pipe 022. By providing the buffer cavity 013 and the exhaust cavity 021 for double-stage buffering, when the oxygen valve is exhausted, the gas first passes through the buffer cavity 013 and then enters the exhaust cavity 021, thereby reducing the noise generated when the oxygen valve is exhausted.

[0027] The implementation principle of an oxygen-generating valve of this embodiment is as follows: the air compressor introduces high-pressure air through the air inlet pipe 005, and the air enters the air inlet chamber 004. At this time, the first piston 009 closes the first tube chamber 007 and the air inlet chamber 004 under the action of the first return spring 010. At the same time, the air enters the pilot valve 012 through the first branch pipe 014, the second branch pipe 015 and the third branch pipe 016, so that the pilot valve 012 is inhaled. When the pilot valve 012 is energized, the pilot valve 012 opens to inflate the upper part of the mounting plate 011, so that the first piston 009 moves downward. At this time, the first tube chamber 007 is connected with the air inlet chamber 004, and the first tube chamber 007 is closed with the buffer chamber 013. The air enters the air outlet 008 through the first tube chamber 007; When air passes through the second branch pipe 015, the piston plate 017 is driven to rise under the action of pressure, and the piston plate 017 drives the second piston 018 to rise, thereby connecting the second tube cavity 020 with the buffer cavity 013. When the oxygen making valve is closed, the air compressor no longer inputs air. At this time, the pilot valve 012 stops working, the air intake is closed and the exhaust is opened, and the gas in the upper cavity of the mounting plate 011 is exhausted through the pilot valve 012, so that the elastic force of the first return spring 010 acts on the first piston 009, thereby closing the first tube cavity 007 and the air intake cavity 004 again. At the same time, the first tube cavity 007 is connected with the buffer cavity 013, so that the compressed air remaining in the first tube cavity 007 enters the buffer cavity 013, and then enters the exhaust cavity 021 through the second tube cavity 020, and is finally discharged through the exhaust pipe 022. At the same time, the second return spring 019 drives the second piston 018 to reset, so that the second tube cavity 020 and the buffer cavity 013 are blocked, thereby preventing outside air from entering and contaminating the molecular sieve.

[0028] Example 2 like Figures 1 to 18 As shown, a mounting seat 200 is installed on one side of the lower valve body 002, a valve port seat 202 is installed on one side of the mounting seat 200, and a valve interface 203 is opened on one side of the valve port seat 202; The oxygen valve also includes: A booster unit, the booster unit comprises a mounting plate 103, a pulling mechanism is arranged inside the mounting plate 103, and the pulling mechanism is used to provide power for the booster unit; The locking unit is located on the mounting base 200, and the locking unit includes a locking mechanism, which includes a locking rod 206. The booster unit drives the locking rod 206 to rotate through a pulling mechanism. The locking unit also includes a pressure mechanism, which includes a first guide block 208 and a second guide block 212. After the locking rod 206 completes its rotation, the pressure mechanism applies pressure to the locking rod 206 in the direction of the lower valve body 002.

[0029] like Figure 8-Figure 10 As shown, in a specific embodiment, the locking unit also includes a locking control mechanism, which is located on both sides of the mounting seat 200. The locking control mechanism is used to withstand the pressure applied by the pressure mechanism on the locking rod 206 before the locking rod 206 completes its rotation. Blocking mechanisms are provided on both sides of the pressure mechanism. The blocking mechanism is used to prevent the pressure mechanism from applying pressure before the locking rod 206 rotates. When the locking rod 206 starts to rotate, the blocking mechanism disengages from the pressure mechanism to allow the pressure mechanism to apply pressure to the locking rod 206.

[0030] like Fig.11As shown, further, grooves 204 are provided on both sides of the mounting seat 200, and a rotating shaft 205 is movably installed inside the groove 204. The locking rod 206 is fixedly installed in the middle of the rotating shaft 205. The groove 204 and the rotating shaft 205 are spaced apart in a direction perpendicular to the surface of the lower valve body 002 so that the pressure on the locking rod 206 will not act on the mounting seat 200, and the two ends of the rotating shaft 205 extend to the upper and lower sides of the mounting seat 200. In this configuration, the locking rod 206 is fixedly connected to the rotating shaft 205 so that the rotating shaft 205 can transmit the force to the locking rod 206.

[0031] like Figure 8-Figure 11 As shown, further, the top and bottom of the mounting seat 200 are provided with mounting grooves, the pressure mechanism is located inside the mounting groove, and the pressure mechanism also includes a positioning block 209, the positioning block 209 is fixedly installed in the mounting groove, the first telescopic rod 210 is fixedly installed at both ends of the positioning block 209, the first telescopic rod 210 is movably sleeved with a first spring 211, one end of the second guide block 212 is fixedly installed at one end of the first telescopic rod 210, and the pressure mechanism also includes a connecting rod 207, the connecting rod 207 is rotatably connected to the rotating shaft 205, and the first guide block 208 is fixedly connected to one side of the connecting rod 207. In this configuration, the elastic force of the first spring 211 acts on the first guide block 208 through the second guide block 212, and the force received by the first guide block 208 acts on the rotating shaft 205 through the connecting rod 207.

[0032] like Figure 8-Figure 9 As shown, further, the locking mechanism includes a cover plate 216 installed on the installation groove, and a movable groove 217 and a limit groove 218 are opened on the cover plate 216, and the movable groove 217 and the limit groove 218 are connected to each other. The two ends of the rotating shaft 205 are installed with limit plates 215, and the width of the limit plate 215 is adapted to the limit groove 218, and the two ends of the limit plate 215 are adapted to the inner wall of the movable groove 217; The blocking mechanism includes a rotating plate 213 and a pushing plate 214, wherein the pushing plate 214 is fixedly connected to the second guide block 212, and the rotating plate 213 is fixedly connected to the rotating shaft 205. In this configuration, the locking rod 206 rotates while driving the limiting plate 215 to rotate through the rotating shaft 205. When the limiting plate 215 rotates to a state aligned with the limiting groove 218, the cover plate 216 no longer bears the pressure of the pressure mechanism through the movable groove 217, and the rotating shaft 205 drives the rotating plate 213 to rotate, so that the rotating plate 213 is separated from the pushing plate 214.

[0033] like Figure 6-Figure 7As shown, further, a locking mechanism is provided on one side of the locking rod 206, and the locking mechanism includes a support block 300, and a plug rod 301 is slidably installed on one side of the support block 300. A slot 302 is provided on one side of the locking rod 206, and the slot 302 is adapted to the plug rod 301. The locking mechanism locks the locking rod 206 through the plug rod 301 and the slot 302. The locking mechanism also includes an elastic component, and the elastic component is used to provide a thrust for the plug rod 301 to move. The elastic component includes a second telescopic rod 304, and one end of the second telescopic rod 304 is fixedly installed on the lower valve body 002, and the other end of the second telescopic rod 304 is fixedly installed with a push rod 303, and the push rod 303 is fixedly connected to the plug rod 301, and a second spring 305 is movably sleeved on the second telescopic rod 304. In this arrangement, when the mounting plate 103 is against the push rod 303, the push rod 303 drives the insertion rod 301 to move and disengage from the slot 302, and the locking rod 206 is unlocked; when the knob 400 is completely rotated, the slot 302 is aligned with the insertion rod 301, and the positioning rod 403 and the positioning groove 402 can be disengaged. At this time, the elastic force of the second spring 305 acts on the push rod 303, thereby causing the mounting plate 103 to move and reset. At the same time, the push rod 303 moves and causes the insertion rod 301 to be inserted into the slot 302, thereby completing the fixation of the locking rod 206.

[0034] Example 3 like Figure 2-Figure 5 As shown, in a specific embodiment, a slide groove 105 is provided on the side of the mounting plate 103, a slider 106 is slidably mounted on the slide groove 105, and a tension mechanism includes a tension spring 109, one end of the tension spring 109 is fixedly connected to a fixing block 110, the fixing block 110 is fixedly connected to the mounting plate 103, the other end of the tension spring 109 is fixedly installed to a connecting block 108, one end of the connecting block 108 is fixedly installed to a connecting plate 107, the connecting plate 107 is fixedly connected to the slider 106, and the slider 106 is adapted to the locking rod 206. In this configuration, the tension of the tension spring 109 acts on the slider 106 through the connecting block 108 and the connecting plate 107, and the slider 106 moves while resisting the corner of the locking rod 206, thereby driving the locking rod 206 to rotate.

[0035] like Figure 2-Figure 5 As shown, further, a telescopic column 102 is fixedly installed on one side of the mounting plate 103, one end of the telescopic column 102 is fixedly installed on one side of the lower valve body 002, and a protective shell 101 is fixedly installed on one side of the lower valve body 002, and the telescopic column 102 is located inside the protective shell 101, and a side sealing plate 104 is fixedly installed on the other side of the mounting plate 103, and a gasket 201 is installed on one side of the mounting seat 200, and the mounting plate 103 moves through the telescopic column 102 to squeeze the gasket 201. In this setting, the gasket 201 is made of silicone material, so that when the pressure applied by the locking rod 206 acts on the booster unit, the mounting plate 103 can be kept in a close fit with the oxygen-making valve.

[0036] like Figure 2 , Figure 3 , Figure 6 As shown, further, a knob 400 is provided on the top of the mounting seat 200, and the knob 400 is fixedly mounted on the top of the limiting plate 215. An external plate 401 is fixedly mounted on one side of the knob 400, and a positioning slot 402 is provided on the external plate 401. A positioning rod 403 is installed on the mounting plate 103, and the positioning rod 403 is adapted to the positioning slot 402. In this configuration, the positioning slot 402 is in an arc shape with the axis of the rotating shaft 205 as the center point. When the positioning slot 402 and the external plate 401 rotate with the knob 400, the positioning rod 403 remains stationary in the positioning slot 402.

[0037] Example 4 like Figure 12-13 As shown, an oxygen making valve includes an oxygen making valve and an oxygen making machine body 500, a delivery pipe 501 is installed on the oxygen making machine body 500, a connector 502 is installed at one end of the delivery pipe 501, side frames 503 are installed on both sides of the connector 502, and an adapter rod 504 is fixedly installed on the side frame 503; The oxygen generator and the oxygen valve are installed by fastening the adapter rod 504 with the locking rod 206 .

[0038] The implementation principle of an oxygen-generating valve and an oxygen-generating machine having the oxygen-generating valve of this embodiment is as follows: when installing the lower valve body 002, the connector 502 is directly aligned with the valve seat 202 and inserted. During the insertion process, the side frame 503 abuts against the mounting plate 103, so that the booster unit moves as a whole; As the booster unit moves, the mounting plate 103 gradually presses against the push rod 303, and at the same time, the locking rod 206 passes through the slide groove 105 and remains fixed under the action of the insertion rod 301 and the slot 302. At this time, the slider 106 moves to one side under the guidance of the inclined end of the locking rod 206. When the mounting plate 103 presses against the push rod 303, the push rod 303 drives the insertion rod 301 to move and disengage from the slot 302. At this time, the locking rod 206 is unlocked, and the tension of the tension spring 109 acts on the slider 106 through the connecting block 108 and the connecting plate 107. While the slider 106 moves, it presses against the corner of the locking rod 206, thereby driving the locking rod 206 to rotate, and the locking rod 206 rotates and buckles the matching rod 504, so that the connector 502 and the oxygen-making valve are installed together; When the locking rod 206 rotates, the limiting plate 215 is driven to rotate through the rotating shaft 205. When the limiting plate 215 rotates to a state aligned with the limiting groove 218, the cover plate 216 no longer bears the pressure of the pressure mechanism through the movable groove 217. At the same time, the rotating shaft 205 drives the rotating plate 213 to rotate, and the rotating plate 213 is separated from the pushing plate 214. At this time, the elastic force of the first spring 211 acts on the first guide block 208 through the second guide block 212. The force exerted on the first guide block 208 acts on the rotating shaft 205 through the connecting rod 207, thereby causing the locking rod 206 to continuously apply pressure to the adapter rod 504, so that continuous pressure is maintained between the connector 502 and the oxygen-making valve. The mounting plate 103 will drive the positioning rod 403 to enter the positioning groove 402 during the movement. When the locking rod 206 rotates, the knob 400 is driven to rotate through the rotating shaft 205, thereby rotating the external plate 401. At this time, the mounting plate 103 is fixed by the positioning groove 402 and the positioning rod 403. When disassembling the oxygen-generating valve, the knob 400 is turned. During the rotation, the knob 400 drives the locking rod 206 to reset through the rotating shaft 205 to unlock the adapter rod 504. At the same time, due to the fixation of the positioning groove 402 and the positioning rod 403 to the mounting plate 103, the mounting plate 103 can still resist the push rod 303 and the insertion rod 301 during the rotation of the knob 400. When the knob 400 is completely rotated, the slot 302 is aligned with the insertion rod 301, and the positioning rod 403 can be disengaged from the positioning groove 402. At this time, the elastic force of the second spring 305 acts on the push rod 303, thereby moving the mounting plate 103 to reset. At the same time, the push rod 303 moves and inserts the insertion rod 301 into the slot 302, thereby completing the fixation of the locking rod 206.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An oxygen production valve, characterized in that: The invention comprises an upper valve body (001) and a lower valve body (002) which are fixedly installed, wherein a base (003) is installed at the bottom of the lower valve body (002), an air intake unit is arranged between the base (003) and the lower valve body (002), and the air intake unit comprises an air intake cavity (004) and a first tube cavity (007), wherein the air intake cavity (004) is arranged on the base (003), and the first tube cavity (007) is arranged on the lower valve body (002), and an air outlet (008) is arranged on one side of the lower valve body (002), and the air outlet (008) is communicated with the air intake cavity (004) through the first tube cavity (007); A control unit is provided on the upper valve body (001), and the control unit includes a pilot valve (012) installed on the top of the upper valve body (001). The control unit also includes a first branch pipe (014) opened on the upper valve body (001) and the lower valve body (002), and a second branch pipe (015) and a third branch pipe (016) opened on the upper valve body (001). The air intake chamber (004) is connected to the pilot valve (012) via the first branch pipe (014), the second branch pipe (015) and the third branch pipe (016).

2. An oxygen production valve according to claim 1, characterized in that: A first piston (009) is movably installed in the first tube cavity (007), and both ends of the first piston (009) are adapted to the first tube cavity (007). A first return spring (010) is installed at the bottom of the first piston (009). A protrusion (006) is installed at the bottom of the air intake cavity (004), and one end of the first return spring (010) is connected to the protrusion (006). A mounting plate (011) is installed at the top of the first piston (009), and the mounting plate (011) is connected to the pilot valve (012).

3. An oxygen production valve according to claim 2, characterized in that: A buffer chamber (013) is provided inside the upper valve body (001), and the control unit further comprises a piston plate (017), wherein the piston plate (017) is located in the buffer chamber (013), a second piston (018) is installed at the bottom of the piston plate (017), and a second return spring (019) is installed on the second piston (018); An exhaust unit is also provided between the base (003) and the lower valve body (002), the exhaust unit comprising a second tube cavity (020) provided on the lower valve body (002) and an exhaust cavity (021) provided on the base (003), the exhaust cavity (021) being connected to the buffer cavity (013) via the second tube cavity (020), an exhaust pipe (022) connected to the exhaust cavity (021) being installed at one end of the base (003), and an air intake pipe (005) connected to the air intake cavity (004) being installed at the other end of the base (003).

4. An oxygen production valve according to claim 3, characterized in that: A mounting seat (200) is installed on one side of the lower valve body (002), a valve port seat (202) is installed on one side of the mounting seat (200), a valve interface (203) is provided on one side of the valve port seat (202), and the valve interface (203) is communicated with the air outlet (008); The oxygen-generating valve further comprises: A boosting unit, the boosting unit comprising a mounting plate (103), a pulling mechanism being arranged inside the mounting plate (103), the pulling mechanism being used to provide power for the boosting unit; A locking unit, the locking unit is located on the mounting seat (200), the locking unit includes a locking mechanism, the locking mechanism includes a locking rod (206), the booster unit drives the locking rod (206) to rotate through a pulling mechanism, the locking unit also includes a pressure mechanism, the pressure mechanism includes a first guide block (208) and a second guide block (212), and the pressure mechanism applies pressure to the locking rod (206) in the direction of the lower valve body (002) after the locking rod (206) has completed its rotation.

5. An oxygen production valve according to claim 4, characterized in that: The locking unit further comprises a locking control mechanism, the locking control mechanism being located on both sides of the mounting seat (200), the locking control mechanism being used to withstand the pressure exerted by the pressure mechanism on the locking rod (206) before the locking rod (206) is completely rotated, and a blocking mechanism is provided on both sides of the pressure mechanism, the blocking mechanism being used to prevent the pressure mechanism from applying pressure before the locking rod (206) is rotated, and when the locking rod (206) starts to rotate, the blocking mechanism is disengaged from the pressure mechanism so that the pressure mechanism applies pressure to the locking rod (206).

6. An oxygen production valve according to claim 5, characterized in that: Grooves (204) are provided on both sides of the mounting seat (200), a rotating shaft (205) is movably installed inside the groove (204), the locking rod (206) is fixedly installed in the middle of the rotating shaft (205), and the groove (204) and the rotating shaft (205) are spaced apart in a direction perpendicular to the surface of the lower valve body (002) so that the pressure on the locking rod (206) will not act on the mounting seat (200), and the two ends of the rotating shaft (205) extend to the upper and lower sides of the mounting seat (200).

7. An oxygen production valve according to claim 6, characterized in that: The top and bottom of the mounting seat (200) are both provided with mounting grooves, the pressure mechanism is located inside the mounting groove, the pressure mechanism also includes a positioning block (209), the positioning block (209) is fixedly mounted in the mounting groove, a first telescopic rod (210) is fixedly mounted at both ends of the positioning block (209), a first spring (211) is movably sleeved on the first telescopic rod (210), one end of the second guide block (212) is fixedly mounted on one end of the first telescopic rod (210), the pressure mechanism also includes a connecting rod (207), the connecting rod (207) is rotatably connected to the rotating shaft (205), and the first guide block (208) is fixedly connected to one side of the connecting rod (207).

8. An oxygen production valve according to claim 7, characterized in that: The locking mechanism comprises a cover plate (216) mounted on the mounting groove, a movable groove (217) and a limit groove (218) being provided on the cover plate (216), the movable groove (217) and the limit groove (218) being communicated with each other, limit plates (215) being mounted on both ends of the rotating shaft (205), the width of the limit plates (215) being adapted to the limit groove (218), and both ends of the limit plates (215) being adapted to the inner wall of the movable groove (217); The blocking mechanism comprises a rotating plate (213) and a pushing plate (214); the pushing plate (214) is fixedly connected to the second guide block (212); and the rotating plate (213) is fixedly connected to the rotating shaft (205).

9. An oxygen production valve according to claim 8, characterized in that: A locking mechanism is provided on one side of the locking rod (206), and the locking mechanism comprises a support block (300), and a plug rod (301) is slidably mounted on one side of the support block (300); a slot (302) is provided on one side of the locking rod (206), and the slot (302) is adapted to the plug rod (301); the locking mechanism locks the locking rod (206) through the plug rod (301) and the slot (302); the locking mechanism also comprises an elastic component, and the elastic component is used to provide a thrust for the plug rod (301) to move; the elastic component comprises a second telescopic rod (304), one end of the second telescopic rod (304) is fixedly mounted on the lower valve body (002), and the other end of the second telescopic rod (304) is fixedly mounted with a push rod (303), and the push rod (303) is fixedly connected to the plug rod (301); and a second spring (305) is movably sleeved on the second telescopic rod (304).

10. An oxygen production valve according to claim 9, characterized in that: A sliding groove (105) is provided on the side of the mounting plate (103), and a slider (106) is slidably mounted on the sliding groove (105). The tension mechanism comprises a tension spring (109), one end of the tension spring (109) is fixedly connected to a fixing block (110), and the fixing block (110) is fixedly connected to the mounting plate (103). The other end of the tension spring (109) is fixedly mounted to a connecting block (108), and one end of the connecting block (108) is fixedly mounted to a connecting plate (107), and the connecting plate (107) is fixedly connected to the slider (106), and the slider (106) is adapted to the locking rod (206).

11. An oxygen production valve according to claim 10, characterized in that: A telescopic column (102) is fixedly mounted on one side of the mounting plate (103), one end of the telescopic column (102) is fixedly mounted on one side of the lower valve body (002), and a protective shell (101) is fixedly mounted on one side of the lower valve body (002), the telescopic column (102) is located inside the protective shell (101), a side sealing plate (104) is fixedly mounted on the other side of the mounting plate (103), a gasket (201) is mounted on one side of the mounting seat (200), and the mounting plate (103) moves through the telescopic column (102) to squeeze the gasket (201).

12. An oxygen production valve according to claim 11, characterized in that: A knob (400) is provided on the top of the mounting seat (200), and the knob (400) is fixedly mounted on the top of the limiting plate (215). An external plate (401) is fixedly mounted on one side of the knob (400), and a positioning groove (402) is provided on the external plate (401). A positioning rod (403) is installed on the mounting plate (103), and the positioning rod (403) is adapted to the positioning groove (402).

13. An oxygen concentrator, comprising the oxygen concentrator valve according to any one of claims 1 to 12, characterized in that: It also includes an oxygen concentrator body (500), on which a delivery pipe (501) is installed, one end of which is installed a connector (502), side frames (503) are installed on both sides of the connector (502), and an adapter rod (504) is fixedly installed on the side frame (503).

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