A portable oxygen concentrator

Abstract

The present invention belongs to the technical field of oxygen production, and discloses a portable oxygen concentrator, including an oxygen production component, an air bag component, a battery pack component and a shell component; the oxygen production component is installed in the shell component, the air bag component is installed on the oxygen production component and is detachable, and the battery pack component is installed on one side of the shell; the shell component includes a main shell, one side of the main shell is provided with an air vent, a movable cover is hinged on the main shell, a magnetic block 1 is installed inside the movable cover, and a magnetic block 2 close to the magnetic block 1 is installed on one side of the main shell, and the magnetic block 1 and the magnetic block 2 attract each other. This design can convert the kinetic energy generated by the user's own movement into inertial potential energy, and convert the inertial potential energy into mechanical energy to achieve the effect of compressed air, thereby replacing the heavy compressor and large-capacity battery, and can reduce the volume and weight of the oxygen concentrator, so as to achieve a more convenient purpose, and achieve the effect of users producing oxygen while hiking.

Description

Technical Field

[0001] The invention belongs to the technical field of oxygen production, in particular to a portable oxygen generator. Background Art

[0002] A portable oxygen concentrator is a portable oxygen production device designed to provide convenience for people who need supplementary oxygen. It is usually used by tourists traveling in plateau environments. Although the size of existing portable oxygen concentrators has been reduced, their own operation still needs to rely on a compressor to draw in external air. At the same time, in order to ensure the endurance of the compressor, it is also necessary to be equipped with a large-capacity battery component, which will cause the weight and size of the oxygen concentrator to be still large and cannot be further reduced. During the journey, if a person travels on his back, it will require a lot of physical strength, and it is usually placed in an accompanying vehicle, which results in it being unable to effectively draw air at any time to produce oxygen and provide oxygen supplementation for people when traveling on foot. In addition, the compressor and large-capacity battery of the portable oxygen concentrator will also increase the selling price of the machine, limiting the audience of the machine.

[0003] Therefore, a portable oxygen concentrator is proposed to solve the above problems. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a portable oxygen concentrator.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a portable oxygen concentrator, comprising an oxygen concentrator assembly, an air bag assembly, a battery pack assembly and a housing assembly;

[0006] The oxygen production assembly is installed in the housing assembly, the air bag assembly is installed on the oxygen production assembly and is detachable, and the battery pack assembly is installed on one side of the housing;

[0007] The housing assembly comprises a main shell, a vent hole is provided on one side of the main shell, a movable cover is hinged on the main shell, a magnetic block 1 is installed inside the movable cover, a magnetic block 2 is installed on one side of the main shell, the magnetic block 1 is close to the magnetic block 1, and the magnetic block 1 and the magnetic block 2 are attracted to each other, and a USB interface that can be connected to the battery pack assembly circuit is provided on the main shell, and the USB interface can provide external discharge;

[0008] The oxygen production component includes a shell, which is installed in a main shell, an air intake hood that can communicate with the inside of the shell is installed on the top of the shell, a mounting frame is installed inside the shell, an air filter element located above the mounting frame is installed inside the shell, compression cylinders are installed on both sides of the mounting frame, a piston block is sleeved inside the compression cylinder, a one-way valve 1 is provided at the top of the compression cylinder, a one-way valve 2 is provided in the piston block, an air pipe is fixedly connected to the bottom of the piston block, the bottom end of the air pipe extends to the bottom of the compression cylinder and is fixedly connected to a high-pressure hose, A connecting pipe is installed at the lower part of the shell, and the bottom end of the high-pressure hose is connected to the connecting pipe. A heat exchanger located below the connecting pipe is installed inside the shell, and the heat exchanger is connected to the connecting pipe. A swing arm is movably installed in the shell, and the external fixed sleeve of the air pipe is provided with a fixed sleeve, and a circular shaft that can move inside the swing arm is connected to the fixed sleeve. A pendulum coaxial with the swing arm is movably installed on the front of the shell, and a connecting frame located outside the pendulum is installed on the front of the shell, a dustproof net is installed on the upper part of the connecting frame, and a counterweight is connected to the pendulum.

[0009] Preferably, the gas outlet end of the heat exchanger is connected to a fixed pipe that passes through the mounting frame, and molecular sieve gas cylinders are installed on both sides of the mounting frame. The number of the molecular sieve gas cylinders is two, and the two gas outlet ends on the fixed pipe are respectively connected to the two molecular sieve gas cylinders, and the connection between the molecular sieve gas cylinder and the fixed pipe is provided with a gas valve one, and the tops of the two molecular sieve gas cylinders are fixedly connected with a three-way pipe, the three-way pipe is installed on the mounting frame, the other end of the three-way pipe is embedded in the inner wall of the shell and is provided with a one-way valve, and the connection between the three-way pipe and the molecular sieve gas cylinder is provided with a gas valve three, and a control unit is installed on the mounting frame.

[0010] Preferably, a cushion is connected to the back of the main shell, a strap is connected to one side of the back of the main shell, a Velcro sub-tape and a Velcro female tape are respectively connected to the strap, and a movable ring is connected to the other side of the back of the main shell.

[0011] Preferably, the air bag assembly includes a mounting block and a second clamping block, the shell is provided with a clamping slot, the inner part of the clamping slot is movably clamped with the second clamping block, the outer side of the second clamping block is connected to the mounting block, the bottom of the mounting block is connected to a storage bag, the storage bag is provided with an air core and can be connected to a nasal suction tube.

[0012] Preferably, the internal movable sleeve of the mounting block is connected to a movable cylinder, the mounting block is connected to a sealing sleeve mounted on the outside of the movable cylinder, the outside of the movable cylinder is surrounded by four air holes that can be sealed by the sealing sleeve, the outside of the movable cylinder is fixedly sleeved with a socket, the outside of the movable cylinder is sleeved with a spring 1, one end of the spring 1 is connected to the mounting block, and the other end of the spring 1 is connected to the socket.

[0013] Preferably, a movable cavity and a movable groove are respectively provided inside the mounting block, and a clamping block 1 is movably sleeved inside the movable cavity, and a round rod is connected to the clamping block 1, and the other end of the round rod extends to the inside of the movable groove, and a spring 2 is sleeved outside the round rod, and one end of the spring 2 is connected to the clamping block 1, and the other end of the spring 2 is connected to the inner wall of the movable cavity.

[0014] Preferably, an air cavity is provided inside the mounting block, a piston rod is sleeved inside the air cavity, the other end of the piston rod extends into the movable groove, and a connecting plate is connected to both the round rod and the piston rod.

[0015] Preferably, it also includes a protection component, which is arranged on the shell and located outside the airbag component. The protection component includes a fixed cover, which is installed on the shell. A limit frame is movable on the fixed cover, and one side of the limit frame is connected to a stop plate located inside the fixed cover. A tension spring is connected between the limit frame and the outer surface of the fixed cover. A bracket is installed on the outside of the fixed cover, and a pressure sensor element is installed in the bracket.

[0016] Preferably, the fixed pipe is connected to a bent pipe, the other end of the bent pipe extends to the interior of the connecting frame and is connected to an air bag installed inside the connecting frame, an air valve 2 is provided at the connection between the bent pipe and the fixed pipe, and steel sheets are connected to both sides of the interior of the connecting frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a compression cylinder, a piston block and a pendulum. When a user walks, the user's body will naturally rise and fall during the walking process. At the same time, accompanied by the natural swing of the arm, the pendulum will be driven to swing left and right under the action of the counterweight block, and the swing arm will be driven to swing at the same time. Due to the swing of the swing arm, the two air pipes will be driven to move up and down in the two compression cylinders respectively through the circular shaft and the fixed sleeve. When the air pipe moves downward, the piston block can be driven to move downward, and the external air will be sucked into the interior of the compression cylinder through the air intake cover and the air filter element through the negative pressure. At this time, the one-way valve is opened When the trachea moves upward, the air inside the compression cylinder will be compressed by the piston block, and the one-way valve two will be opened, so that the compressed air inside the compression cylinder will pass through the trachea, high-pressure hose and connecting pipe into the heat exchanger for heat exchange. This design can convert the kinetic energy generated by the user's own movement into inertial potential energy, and convert the inertial potential energy into mechanical energy to achieve the effect of compressing air, thereby replacing the heavy compressor and large-capacity long-lasting battery, and can reduce the size and weight of the oxygen concentrator to achieve a more convenient purpose, so that the user can produce oxygen while hiking.

[0019] In the present invention, by providing a piston rod and a first clamping block, when the interior of the storage bag is about to be filled, the expansion of the storage bag will abut against the abutting plate and push the abutting plate and the limiting frame to move. At this time, the tension spring will be stretched. Due to the elastic recovery of the tension spring, a resistance will be generated against the expansion of the storage bag. As the installation block and the amount of oxygen inside the storage bag continue to increase, the piston rod will be pushed to move outward, driving the connecting plate, the round rod and the first clamping block to contract into the interior of the movable cavity. At this time, the second spring is compressed, and finally the first clamping block disengages from the interior of the clamping seat, releasing the fixing effect of the clamping seat. Under the elastic force of the first spring, the movable cylinder rebounds and resets, and the air hole is continuously sealed in the sealing sleeve. At the same time, the one-way valve loses contact with the movable cylinder and closes, thereby avoiding continuous supply of oxygen into the air bag assembly, preventing the storage bag from bursting due to overload, and facilitating direct replacement by the user.

[0020] In the present invention, by providing an elbow pipe and an air bag, when the pendulum bob swings, it will collide with the steel sheet and produce a "clang clang clang" sound to remind the user that the operation is in progress. At the same time when the first clamping block disengages from the interior of the clamping seat, the limiting frame will abut against the pressure sensing element. At this time, the pressure sensing element will be triggered by the pressure, and the control unit controls the first air valve to close and the second air valve to open, so that the gas continuously supplied into the fixed pipe can be sent into the air bag through the elbow pipe, causing the air bag to expand and abut against the counterweight block, pressing the pendulum bob to stop swinging and stop admitting air. When the pendulum bob stops swinging, the "clang clang clang" sound will not be generated, thereby reminding the user to replace the air bag assembly. At the same time, stopping the admission of air can protect the oxygen generator from being damaged due to overpressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention;

[0022] Figure 2 is a sectional structural diagram of the main housing of the present invention;

[0023] Figure 3 is a schematic structural diagram of the back of the present invention;

[0024] Figure 4 is a schematic structural diagram of the oxygen generation assembly of the present invention;

[0025] Figure 5 is a sectional structural diagram of the compression cylinder of the present invention;

[0026] Figure 6 is a sectional structural diagram of the housing of the present invention;

[0027] Figure 7 is a schematic sectional structural diagram of the side of the present invention;

[0028] Figure 8 is a sectional structural diagram of the connecting frame of the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the molecular sieve gas cylinder of the present invention;

[0030] Fig.10 It is a schematic cross-sectional structural diagram of the mounting block of the present invention;

[0031] Fig.11 for Fig.10 A schematic diagram of the local enlarged structure at point A in the middle;

[0032] Fig.12 It is a schematic cross-sectional structural diagram of the fixed cover of the present invention;

[0033] Fig.13 It is a schematic cross-sectional structure diagram of the elbow of the present invention;

[0034] Fig.14 It is a schematic diagram of the structure of the air bag of the present invention.

[0035] In the figure: 1. oxygen production component; 11. shell; 12. air intake cover; 13. air filter element; 14. mounting frame; 15. compression cylinder; 16. one-way valve 1; 17. piston block; 18. one-way valve 2; 19. air pipe; 110. connecting pipe; 111. high-pressure hose; 112. fixing sleeve; 113. heat exchanger; 114. swing arm; 115. round shaft; 116. connecting frame; 117. dustproof net; 118. steel sheet; 119. pendulum; 120. counterweight; 121. fixing pipe; 122. molecular sieve gas cylinder; 123. gas valve 1; 124. three-way pipe; 125. one-way valve; 126. gas valve 2; 127. gas bag; 128. elbow; 129. slot; 130. control unit ;131. Valve three;2. Protection assembly;21. Fixed cover;22. Limiting frame;23. Counter plate;24. Tension spring;25. Bracket;26. Pressure sensor element;3. Air bag assembly;31. Mounting block;32. Storage bag;33. Movable cylinder;34. Air hole;35. Card seat;36. Spring one;37. Air cavity;38. Piston rod;39. Movable cavity;310. Card block one;311. Spring two;312. Round rod;313. Connecting plate;314. Movable groove;315. Sealing sleeve;316. Card block two;4. Battery pack assembly;5. Shell assembly;51. Main shell;52. Movable cover;53. Magnetic block one;54. Magnetic block two;55. Counter pad;56. Strap;57. Movable ring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] like Figures 1 to 14 As shown, the present invention provides a portable oxygen concentrator, comprising an oxygen concentrator assembly 1, an air bag assembly 3, a battery pack assembly 4 and a housing assembly 5;

[0038] The oxygen production component 1 is installed in the housing component 5, the air bag component 3 is installed on the oxygen production component 1 and is detachable, and the battery pack component 4 is installed on one side of the housing 11;

[0039] The housing assembly 5 includes a main housing 51, a ventilation hole is provided on one side of the main housing 51, a movable cover 52 is hingedly connected to the main housing 51, a magnetic block 1 53 is installed inside the movable cover 52, a magnetic block 2 54 close to the magnetic block 1 53 is installed on one side inside the main housing 51, and the magnetic block 1 53 and the magnetic block 2 54 attract each other, and a USB interface that can be connected to the circuit of the battery pack assembly 4 is provided on the main housing 51, and the USB interface can provide external discharge;

[0040] The oxygen production assembly 1 includes a shell 11, which is installed in the main shell 51. An air intake hood 12 that can communicate with the inside of the shell 11 is installed on the top of the shell 11. A mounting frame 14 is installed inside the shell 11. An air filter element 13 located above the mounting frame 14 is installed inside the shell 11. A compression cylinder 15 is installed on both sides of the mounting frame 14. A piston block 17 is sleeved inside the compression cylinder 15. A one-way valve 16 is provided at the top of the compression cylinder 15. A one-way valve 2 18 is provided in the piston block 17. The bottom of the piston block 17 is fixedly connected to an air pipe 19. The bottom end of the air pipe 19 extends to the bottom of the compression cylinder 15 and is fixedly connected to a high-pressure hose 111. A A connecting pipe 110, the bottom end of the high-pressure hose 111 is connected to the connecting pipe 110, a heat exchanger 113 located below the connecting pipe 110 is installed inside the shell 11, the heat exchanger 113 is connected to the connecting pipe 110, a swing arm 114 is movably installed in the shell 11, the external fixed sleeve of the air pipe 19 is provided with a fixed sleeve 112, and a round shaft 115 that can move inside the swing arm 114 is connected to the fixed sleeve 112, a pendulum 119 coaxial with the swing arm 114 is movably installed on the front of the shell 11, a connecting frame 116 located outside the pendulum 119 is installed on the front of the shell 11, a dustproof net 117 is installed above the inside of the connecting frame 116, and a counterweight 120 is connected to the pendulum 119.

[0041] With the above solution, when the user walks on foot, the user's body will naturally rise and fall during the walking process, accompanied by the natural swing of the arms, which will drive the pendulum 119 to swing left and right under the action of the counterweight block 120, and at the same time drive the swing arm 114 to swing. Due to the swing of the swing arm 114, the two air pipes 19 will be driven to move up and down in the two compression cylinders 15 through the circular shaft 115 and the fixed sleeve 112. When the air pipe 19 moves downward, it can drive the piston block 17 to move downward, and the outside air is sucked through the air intake cover 12 and the air filter element 13 through the negative pressure. To the interior of the compression cylinder 15, the one-way valve 16 is opened. When the air pipe 19 moves upward, the air inside the compression cylinder 15 is compressed by the piston block 17, and the one-way valve 2 18 is opened, so that the compressed air inside the compression cylinder 15 passes through the air pipe 19 and the high-pressure hose 111 and the connecting pipe 110 into the heat exchanger 113 for heat exchange, thereby converting the kinetic energy generated by the user's own movement into inertial potential energy, and converting the inertial potential energy into mechanical energy to achieve the effect of compressing the air, thereby replacing the heavy compressor and large-capacity battery for endurance.

[0042] like Figures 5 to 7 , Fig. 9 and Fig.10 As shown, the gas outlet end of the heat exchanger 113 is connected to a fixed pipe 121 that passes through the mounting frame 14, and molecular sieve gas cylinders 122 are installed on both sides of the mounting frame 14. The number of molecular sieve gas cylinders 122 is two, and the two gas outlet ends on the fixed pipe 121 are respectively connected to the two molecular sieve gas cylinders 122. The connection between the molecular sieve gas cylinder 122 and the fixed pipe 121 is provided with a gas valve 123. The tops of the two molecular sieve gas cylinders 122 are fixedly connected with a three-way pipe 124, which is installed on the mounting frame 14. The other end of the three-way pipe 124 is embedded in the inner wall of the shell 11 and is provided with a one-way valve 125. The connection between the three-way pipe 124 and the molecular sieve gas cylinder 122 is provided with a gas valve 3 131, and a control unit 130 is installed on the mounting frame 14.

[0043] The above scheme is adopted: after the compressed air passes through the heat exchanger 113 for heat exchange, it enters a molecular sieve gas cylinder 122 through the fixed tube 121, and then the high-concentration oxygen is separated by the molecular sieve gas cylinder 122, and finally enters the storage bag 32 for storage through the three-way pipe 124, so as to achieve the effect of oxygen production and storage while walking. The two molecular sieve gas cylinders 122 can be used alternately under the control of the control unit 130 to control the valve 1 123 and the valve 3 131.

[0044] like Figure 3 As shown, a cushion 55 is connected to the back of the main shell 51 , a strap 56 is connected to one side of the back of the main shell 51 , a Velcro sub-tape and a Velcro female tape are respectively connected to the strap 56 , and a movable ring 57 is connected to the other side of the back of the main shell 51 .

[0045] The above scheme is adopted: the oxygen concentrator is placed on the arm, and then the strap 56 is passed through the movable ring 57, the strap 56 is pulled to tighten it on the user's arm, and then the Velcro sub-tape on the strap 56 is adhered to the Velcro female tape, so that the oxygen concentrator can be tied to the human arm.

[0046] like Figure 5 , Figure 6 , Figure 8 , Fig.10 and Fig.11 As shown, the air bag assembly 3 includes a mounting block 31 and a second clamping block 316. A clamping slot 129 is provided on the shell 11. The internal movably clamped card of the clamping slot 129 is connected with the second clamping block 316. The outer side of the second clamping block 316 is connected with the mounting block 31. The lower part of the mounting block 31 is connected with a storage bag 32. The storage bag 32 is provided with an air core and can be connected to a nasal suction tube.

[0047] Adopting the above scheme: when oxygen needs to be inhaled, the user inserts the nasal tube into the air core, inserts the other end of the nasal tube into one nostril, presses the air valve on the nasal tube, and inhales through both nostrils at the same time, thereby achieving mixed inhalation of air and oxygen, avoiding oxygen intoxication caused by inhaling high-concentration oxygen.

[0048] like Fig.10 and Fig.11 As shown, the internal movable sleeve of the mounting block 31 is connected to the movable cylinder 33, and the mounting block 31 is connected to a sealing sleeve 315 which is sleeved on the outside of the movable cylinder 33. The outside of the movable cylinder 33 is surrounded by four air holes 34 which can be sealed by the sealing sleeve 315. The outside of the movable cylinder 33 is fixedly sleeved with a socket 35, and the outside of the movable cylinder 33 is sleeved with a spring 36, one end of the spring 36 is connected to the mounting block 31, and the other end of the spring 36 is connected to the socket 35.

[0049] The above solution is adopted: press the movable cylinder 33, press one end of the movable cylinder 33 into the three-way pipe 124, and push the one-way valve 125 to open, at this time the spring 1 36 is compressed, and the seal of the air hole 34 is released, so that the three-way pipe 124 is connected with the storage bag 32.

[0050] like Fig.10 and Fig.11 As shown, the interior of the mounting block 31 is respectively provided with an active cavity 39 and an active groove 314, the interior of the active cavity 39 is movably sleeved with a clamping block 1 310, the clamping block 1 310 is connected with a round rod 312, the other end of the round rod 312 extends to the interior of the active groove 314, the outside of the round rod 312 is sleeved with a spring 2 311, one end of the spring 2 311 is connected to the clamping block 1 310, and the other end of the spring 2 311 is connected to the inner wall of the active cavity 39.

[0051] By adopting the above scheme: when the movable cylinder 33 drives the holder 35 to move, the block 1 310 can be squeezed to shrink toward the inside of the movable cavity 39; when the holder 35 moves to the block 1 310, due to the elastic action of the spring 2 311, the block 1 310 can be driven to be connected to the inside of the holder 35, thereby fixing the movable cylinder 33 and the holder 35.

[0052] like Fig.10 and Fig.11 As shown, an air cavity 37 is opened inside the mounting block 31 , a piston rod 38 is sleeved inside the air cavity 37 , and the other end of the piston rod 38 extends to the inside of the movable groove 314 , and a connecting plate 313 is connected to both the round rod 312 and the piston rod 38 .

[0053] Adopting the above scheme: when the expansion of the storage bag 32 encounters resistance, as the amount of oxygen inside the mounting block 31 and the storage bag 32 continues to increase, the piston rod 38 will be pushed to move outward, and the connecting plate 313, the round rod 312 and the card block 1 310 will be driven to shrink toward the inside of the movable chamber 39. At this time, the spring 2 311 is compressed, and finally the card block 1 310 is separated from the inside of the card seat 35, thereby releasing the fixing effect of the card seat 35, and under the elastic force of the spring 1 36, the movable cylinder 33 is driven to rebound and reset.

[0054] like Fig.12 As shown, it also includes a protection component 2, which is arranged on the shell 11 and located outside the airbag component 3. The protection component 2 includes a fixed cover 21, which is installed on the shell 11. A limit frame 22 is movably sleeved on the fixed cover 21. One side of the limit frame 22 is connected to a stop plate 23 located inside the fixed cover 21. A tension spring 24 is connected between the limit frame 22 and the outer surface of the fixed cover 21. A bracket 25 is installed outside the fixed cover 21, and a pressure sensor element 26 is installed inside the bracket 25.

[0055] Adopting the above scheme: when the interior of the storage bag 32 is about to be filled, the expansion of the storage bag 32 will abut against the abutment plate 23 and push the abutment plate 23 and the limit frame 22 to move. At this time, the tension spring 24 will be stretched, causing the limit frame 22 to abut against the pressure sensing element 26, so that the pressure sensing element 26 will be triggered by pressure.

[0056] like Fig.13 and Fig.14 As shown, the fixed pipe 121 is connected to a curved pipe 128, the other end of the curved pipe 128 extends to the interior of the connecting frame 116 and is connected to an air bag 127 installed inside the connecting frame 116, an air valve 126 is provided at the connection between the curved pipe 128 and the fixed pipe 121, and steel sheets 118 are connected to both sides of the interior of the connecting frame 116.

[0057] With the above solution, the control unit 130 controls the air valve 123 to close and the air valve 2 126 to open, so that the gas continuously supplied into the fixed pipe 121 can be delivered into the air bag 127 through the bent pipe 128, so that the air bag 127 expands and abuts against the counterweight 120, thereby forcing the rotor 119 to stop swinging and stop air intake.

[0058] The working principle and use process of the present invention:

[0059] When in use, first install the airbag assembly 3, open the movable cover 52, release the magnetic attraction between the magnetic block 1 53 and the magnetic block 2 54, dock the clamping block 2 316 and clamp it into the clamping groove 129, press the movable cylinder 33, press one end of the movable cylinder 33 into the three-way pipe 124, and support the one-way valve 125 to open. At this time, the spring 1 36 is compressed, and the movable cylinder 33 drives the clamping seat 35 to move, and squeezes the clamping block 1 310 to shrink into the inside of the movable cavity 39. When the clamping seat 35 moves to the clamping block 1 310, Due to the elastic effect of the second spring 311, the card block 1 310 can be driven to be connected to the inside of the card seat 35, and the card seat 35 and the movable cylinder 33 are fixed. At this time, the seal of the air hole 34 is released, so that the three-way pipe 124 is connected with the storage bag 32, and the oxygen concentrator is placed on the arm, and then the strap 56 is passed through the movable ring 57, and the strap 56 is pulled to tighten it on the user's arm, and then the Velcro sub-stick on the strap 56 is glued to the Velcro mother sticky, so that the oxygen concentrator can be tied to the human arm.

[0060] When the user is walking, the air vents on the main shell 51 can be ventilated to the outside world. The user's body will naturally rise and fall during the walking process, and the natural swing of the arms will drive the pendulum 119 to swing left and right under the action of the counterweight 120, and at the same time drive the swing arm 114 to swing. Due to the swing of the swing arm 114, the two air pipes 19 will be driven to move up and down in the two compression cylinders 15 respectively through the circular shaft 115 and the fixed sleeve 112. When the air pipe 19 moves downward, it can drive the piston block 17 to move downward, and the outside air is sucked into the compression cylinder 15 through the air intake cover 12 and the air filter element 13 through the negative pressure. At this time, the one-way valve 16 is opened. When the air pipe 19 moves upward, the air inside the compression cylinder 15 will be compressed by the piston block 17, and the one-way valve 2 18 will be opened, so that the compressed air inside the compression cylinder 15 passes through the air pipe 19, the high-pressure hose 111, and the connecting pipe 110 into the heat exchanger 113 for heat exchange.

[0061] After the compressed air passes through the heat exchanger 113 for heat exchange, it enters a molecular sieve gas cylinder 122 through the fixed tube 121, and then the high-concentration oxygen is separated by the molecular sieve gas cylinder 122, and finally enters the storage bag 32 for storage through the three-way pipe 124, so as to achieve the effect of oxygen production and storage while walking. The two molecular sieve gas cylinders 122 can be used alternately under the control of the control unit 130 to control the valve 1 123 and the valve 3 131.

[0062] When oxygen is needed, the user inserts the nasal tube into the air core, inserts the other end of the nasal tube into one nostril, presses the air valve on the nasal tube, and inhales through both nostrils at the same time, thereby achieving mixed inhalation of air and oxygen and preventing the user from inhaling high-concentration oxygen and getting oxygen intoxication.

[0063] When the interior of the storage bag 32 is about to be filled, the expansion of the storage bag 32 will abut against the abutment plate 23 and push the abutment plate 23 and the limit frame 22 to move. At this time, the tension spring 24 will be stretched. Due to the elastic recovery effect of the tension spring 24, resistance will be generated to the expansion of the storage bag 32. As the amount of oxygen inside the mounting block 31 and the storage bag 32 continues to increase, the piston rod 38 will be pushed to move outward, and the connecting plate 313, the round rod 312 and the card block 1 310 will be driven to shrink toward the interior of the movable chamber 39. At this time, the spring 2 311 is compressed, and finally the card block 1 310 is separated from the interior of the card seat 35, releasing the fixing effect of the card seat 35. Under the elastic force of the spring 1 36, the movable cylinder 33 is driven to rebound and reset, and the air hole 34 continues to be sealed in the sealing sleeve 315. At the same time, the one-way valve 125 loses its abutment with the movable cylinder 33 and closes, thereby avoiding overload and rupture of the storage bag 32.

[0064] When the pendulum 119 swings, it will collide with the steel sheet 118 and produce a "clang clang clang" sound, reminding the user that the operation is in progress. When the block 1 310 detaches from the inside of the holder 35, the limit frame 22 will abut against the pressure sensing element 26. At this time, the pressure sensing element 26 will be triggered by the pressure, and the control unit 130 controls the air valve 123 to close and the air valve 2 126 to open, so that the gas continued to be supplied into the fixed pipe 121 can be delivered to the air bag 127 through the bent pipe 128, so that the air bag 127 expands and abuts against the counterweight 120, forcing the pendulum 119 to stop swinging and stop air intake. When the pendulum 119 stops swinging, no "clang clang clang" sound will be produced, thereby reminding the user to replace the air bag assembly 3. At the same time, the air intake is stopped to protect the oxygen generator from over-pressure damage.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable oxygen concentrator, characterized in that: It comprises an oxygen production component (1), a protection component (2), an air bag component (3), a battery pack component (4) and a housing component (5); The oxygen production component (1) is installed in the housing component (5), the air bag component (3) is installed on the oxygen production component (1) and is detachable, and the battery pack component (4) is installed on one side of the housing (11); The oxygen production assembly (1) comprises a shell (11), a mounting frame (14) is installed inside the shell (11), compression cylinders (15) are installed on both sides of the mounting frame (14), a piston block (17) is sleeved inside the compression cylinder (15), an air pipe (19) is fixedly connected to the bottom of the piston block (17), the bottom end of the air pipe (19) extends to the bottom of the compression cylinder (15) and is fixedly connected to a high-pressure hose (111), a connecting pipe (110) is installed at the bottom of the shell (11), the bottom end of the high-pressure hose (111) is connected to the connecting pipe (110), and a connecting pipe (110) is installed inside the shell (11) at a position a heat exchanger (113) below the connecting pipe (110), the heat exchanger (113) being in communication with the connecting pipe (110); a swing arm (114) being movably mounted in the housing (11); a fixing sleeve (112) being provided on the outer fixing sleeve of the air pipe (19); a circular shaft (115) being movable in the swing arm (114) being connected to the fixing sleeve (112); a movably mounted pendulum (119) coaxial with the swing arm (114) being mounted on the front of the housing (11); a connecting frame (116) being mounted on the front of the housing (11) and being located outside the pendulum (119); and a counterweight (120) being connected to the pendulum (119); The gas outlet end of the heat exchanger (113) is connected to a fixed pipe (121) that passes through the mounting frame (14). Molecular sieve gas cylinders (122) are installed on both sides of the mounting frame (14). The number of the molecular sieve gas cylinders (122) is two. The two gas outlet ends on the fixed pipe (121) are respectively connected to the two molecular sieve gas cylinders (122). The connection between the molecular sieve gas cylinder (122) and the fixed pipe (121) is provided with a gas valve one (123). The tops of the two molecular sieve gas cylinders (122) are fixedly connected with a three-way pipe (124). The three-way pipe (124) is installed on the mounting frame (14). The other end of the three-way pipe (124) is embedded in the inner wall of the shell (11) and is provided with a one-way valve (125). The connection between the three-way pipe (124) and the molecular sieve gas cylinder (122) is provided with a gas valve three (131). The mounting frame (14) is installed with a control unit (130); The air bag assembly (3) comprises a mounting block (31) and a second clamping block (316); a storage bag (32) is connected below the mounting block (31); The mounting block (31) is internally sleeved with a movable cylinder (33), the mounting block (31) is connected with a sealing sleeve (315) sleeved on the outside of the movable cylinder (33), the movable cylinder (33) is provided with four air holes (34) which can be sealed by the sealing sleeve (315) around the outside, the movable cylinder (33) is externally sleeved with a clamping seat (35) fixedly connected to the outside of the movable cylinder (33), the outside of the movable cylinder (33) is sleeved with a spring (36), one end of the spring (36) is connected to the mounting block (31), and the other end of the spring (36) is connected to the clamping seat (35); The mounting block (31) is provided with an active cavity (39) and an active groove (314) inside, respectively; a first clamping block (310) is movably sleeved inside the active cavity (39); a round rod (312) is connected to the first clamping block (310); the other end of the round rod (312) extends to the inside of the active groove (314); a second spring (311) is sleeved outside the round rod (312); one end of the second spring (311) is connected to the first clamping block (310); and the other end of the second spring (311) is connected to the inner wall of the active cavity (39); An air cavity (37) is provided inside the mounting block (31), a piston rod (38) is sleeved inside the air cavity (37), the other end of the piston rod (38) extends into the inside of the movable groove (314), and a connecting plate (313) is connected to each of the round rod (312) and the piston rod (38); The protection component (2) is arranged on the housing (11) and is located outside the airbag component (3), the protection component (2) comprises a fixed cover (21), a bracket (25) is installed outside the fixed cover (21), and a pressure sensing element (26) is installed inside the bracket (25); The fixed pipe (121) is connected to a bent pipe (128), the other end of the bent pipe (128) extends to the interior of the connecting frame (116) and is connected to an air bag (127) installed inside the connecting frame (116), a second air valve (126) is provided at the connection between the bent pipe (128) and the fixed pipe (121), and steel sheets (118) are connected to both sides of the interior of the connecting frame (116).

2. A portable oxygen concentrator according to claim 1, characterized in that: The housing assembly (5) comprises a main housing (51), one side of the main housing (51) is provided with a vent hole, the main housing (51) is hingedly provided with a movable cover (52), a first magnetic block (53) is installed inside the movable cover (52), a second magnetic block (54) close to the first magnetic block (53) is installed on one side inside the main housing (51), and the first magnetic block (53) and the second magnetic block (54) are attracted to each other, and a USB interface capable of being connected to a circuit of a battery pack assembly (4) is provided on the main housing (51), and the USB interface can provide external discharge.

3. A portable oxygen concentrator according to claim 2, characterized in that: The back of the main shell (51) is connected to a cushion (55), one side of the back of the main shell (51) is connected to a strap (56), the strap (56) is respectively connected to a Velcro sub-tape and a Velcro female tape, and the other side of the back of the main shell (51) is connected to a movable ring (57).

4. A portable oxygen concentrator according to claim 1, characterized in that: The housing (11) is provided with a card slot (129), the interior of the card slot (129) is movably connected to a second card block (316), the outer side of the second card block (316) is connected to a mounting block (31), and the storage bag (32) is provided with an air core and can be connected to a nasal suction tube.

5. A portable oxygen concentrator according to claim 1, characterized in that: The fixed cover (21) is mounted on the housing (11), a limit frame (22) is movably sleeved on the fixed cover (21), one side of the limit frame (22) is connected to a stop plate (23) located inside the fixed cover (21), and a tension spring (24) is connected between the limit frame (22) and the outer surface of the fixed cover (21).

6. A portable oxygen concentrator according to claim 1, characterized in that: The shell (11) is installed in the main shell (51), the top of the shell (11) is equipped with an air intake cover (12) that can communicate with the inside of the shell (11), the inside of the shell (11) is equipped with an air filter element (13) located above the mounting frame (14), the top of the compression cylinder (15) is equipped with a one-way valve 1 (16), the piston block (17) is equipped with a one-way valve 2 (18), and a dustproof net (117) is installed above the inside of the connecting frame (116).

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