CN115645691B - Oxygenerator with flow automatic control device - Google Patents
Oxygenerator with flow automatic control device Download PDFInfo
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- CN115645691B CN115645691B CN202211567899.6A CN202211567899A CN115645691B CN 115645691 B CN115645691 B CN 115645691B CN 202211567899 A CN202211567899 A CN 202211567899A CN 115645691 B CN115645691 B CN 115645691B
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Abstract
The invention discloses an oxygen generator with a flow automatic control device, comprising: the oxygen humidifying piece comprises an oxygen humidifying shell, a low-oxygen humidifying piece and a high-oxygen humidifying piece, wherein the low-oxygen humidifying piece conveys low-flow oxygen into the oxygen humidifying shell and humidifies the oxygen on the oxygen humidifying shell according to needs, and the high-oxygen humidifying piece conveys high-flow oxygen into the oxygen humidifying shell and humidifies the oxygen on the low-oxygen humidifying piece according to needs; the oxygen measurement piece, it is including measurement driving medium and measurement piece, and the measurement driving medium is driven by low oxygen humidification piece and high oxygen humidification piece on oxygen humidification shell, and the measurement driving medium drives the measurement piece of connecting and measures the back discharge and supply patient to use to the oxygen after the humidification. The invention has reasonable structural design, compact structure, energy-saving metering and humidifying process and high oxygen output metering precision, can humidify and output and meter oxygen simultaneously, can change the humidification degree of the oxygen according to the output flow of the oxygen, and has high oxygen inhalation comfort of patients.
Description
Technical Field
The invention relates to the technical field of oxygen generation equipment, in particular to an oxygen generator with an automatic flow control device.
Background
Oxygen inhalation is the most common way for correcting hypoxia in clinic, the oxygen inhalation concentration is proper, and many factors are considered, including the type of the primary disease, clinical symptoms, the conditions of the patient, whether other complications exist, and the like. The oxygen inhalation concentration =21+4 × oxygen inhalation flow per minute, the nasal catheter is generally adopted for oxygen inhalation, and the condition of hypoxia is corrected by improving the oxygen inhalation concentration in the nasal catheter. Generally classified into low concentration oxygen therapy, medium concentration oxygen therapy, high concentration oxygen therapy, and hyperbaric oxygen therapy.
1. Low-concentration oxygen therapy: for patients with hypoxia alone or in combination with carbon dioxide retention, a relatively low concentration of oxygen therapy may be administered to the patient to correct the hypoxia. The oxygen inhalation concentration is usually within 40 percent, so that the symptom of hypoxia of a patient can be solved, and the retention of carbon dioxide can be prevented;
2. medium concentration oxygen therapy: patients with lung parenchymal diseases, such as pulmonary heart disease, pulmonary interstitial disease and the like, diffuse pulmonary dispersion dysfunction, disordered ventilation-blood ratio or arteriovenous short circuit need to be corrected by relatively higher oxygen concentration, generally oxygen inhalation concentration is 40-60%, and hypoxia can be corrected, so that clinical symptoms of the patients can be relieved, and particularly the patients with lower hemoglobin concentration or cardiac insufficiency can be relieved;
3. high concentration oxygen therapy: aiming at patients with simple hypoxia, no obvious carbon dioxide retention and severe hypoxia, the hypoxia can be corrected by increasing the oxygen inhalation concentration which can reach more than 60 percent, such as severe hypoxemia and the like;
4. high pressure oxygen therapy: hyperbaric oxygen therapy is used for 100% oxygen inhalation under 0.2-0.3MPa in a special pressurizing chamber, mainly aiming at special anoxic patients, such as patients with carbon monoxide poisoning or gas gangrene, and can rapidly control the symptoms of the patients by means of hyperbaric oxygen to improve the prognosis of the patients.
The symptoms of hypoxia are improved by oxygen inhalation, and if the concentration is too low, hypoxia may not be improved, and if the concentration is too high, oxygen poisoning may be caused. The existing oxygen generator can only provide oxygen with one concentration (the oxygen concentration is more than 90 percent), but cannot directly prepare oxygen with proper oxygen concentration suitable for patients according to the needs, and the patients need to humidify the oxygen before inhaling the oxygen. The existing oxygen flow control device can only play a role in measuring oxygen flow, and a humidification bottle is additionally arranged for oxygen humidification, but the oxygen humidification method cannot automatically adaptively change oxygen humidification according to the oxygen flow.
Disclosure of Invention
In order to overcome the defects, the invention provides an oxygen generator with an automatic flow control device, which specifically adopts the following technical scheme:
an oxygen generator with automatic flow control device, comprising:
the oxygen humidifying part comprises an oxygen humidifying shell, a low-oxygen humidifying part and a high-oxygen humidifying part, the low-oxygen humidifying part is used for delivering low-flow oxygen into the oxygen humidifying shell and humidifying the oxygen humidifying shell according to needs on the oxygen humidifying shell, and the high-oxygen humidifying part is used for delivering high-flow oxygen into the oxygen humidifying shell and humidifying the oxygen humidifying shell according to needs on the low-oxygen humidifying part;
the oxygen measurement piece, it sets up on the oxygen humidification piece, it includes measurement driving medium and measurement piece, the measurement driving medium is in on the oxygen humidification shell by hypoxemia humidification piece with hyperoxia humidification piece transmission, the measurement driving medium drives and connects the measurement piece is measured the back to the oxygen after the humidification and is discharged the confession patient and use.
Preferably, the low oxygen humidification element comprises a first oxygen delivery control element and a first oxygen flow metering power element, the first oxygen delivery control element delivering oxygen into the oxygen humidification housing over the oxygen humidification housing and urging the first oxygen flow metering power element attached thereto to rotate.
Preferably, the first oxygen delivery control part comprises an oxygen delivery pipe, a first oxygen delivery branch pipe, a first oxygen special valve and a liquid supplementing pipe, one end of the oxygen delivery pipe penetrates into the oxygen humidification shell, and the other end of the oxygen delivery pipe is communicated with an oxygen outlet of an oxygen generator; one end of the first oxygen conveying branch pipe penetrates through the side wall of one end of the oxygen conveying pipe, the first oxygen special valve is arranged at one end of the first oxygen conveying branch pipe, one end of the liquid supplementing pipe is obliquely arranged on the side wall of one end of the first oxygen conveying branch pipe in a penetrating mode, and the penetrating position of the liquid supplementing pipe and the first oxygen conveying branch pipe is located above the first oxygen special valve.
Preferably, the first oxygen flow metering power element comprises a rotary mount disposed on the first oxygen delivery control element and a first rotary relay disposed on the rotary mount; the rotary fixing frame comprises a rotary fixing rod and a first rotary bearing, one end of the rotary fixing rod is arranged at the other end of the first oxygen conveying branch pipe, and the first rotary bearing is fixedly arranged at the other end of the rotary fixing rod; the first rotating relay comprises a first rotating shaft, a rotating blade and a first bevel gear, wherein one end of the first rotating shaft penetrates through the first rotating bearing, the rotating blade is arranged at one end of the first rotating shaft, and the first bevel gear is arranged at the other end of the first rotating shaft.
Preferably, the high oxygen humidification element comprises a second oxygen delivery control element disposed on the first oxygen delivery control element and a second oxygen flow metering motive element disposed on the second oxygen delivery control element; the second oxygen conveying control part comprises a second oxygen conveying branch pipe and a second oxygen special valve, the second oxygen conveying branch pipe is L-shaped, one end of the second oxygen conveying branch pipe is arranged at one end of the oxygen conveying pipe in a penetrating mode, and the second oxygen special valve is arranged on the second oxygen conveying branch pipe.
Preferably, the second oxygen flow metering power part comprises a rotating box and a second rotating relay part, the rotating box is in a disc butterfly shape, a rotating through hole is formed in one end face of the rotating box, and the rotating box is sleeved at the other end of the second oxygen conveying branch pipe through the rotating through hole; an oxygen spraying pipe is connected to the side edge of the rotating box in a penetrating mode, and the axis of the oxygen spraying pipe is overlapped with a tangent line of the rotating box.
Preferably, the second rotation relay comprises a second rotating shaft, a worm and a worm wheel, one end of the second rotating shaft is arranged on the other end face of the rotation box, the worm is arranged on the other end of the second rotating shaft, the worm wheel is sleeved on the first rotating shaft, and the worm wheel is meshed with the worm.
Preferably, a first relay groove is formed in the inner ring surface of the worm wheel, the first relay groove is in the shape of an annular groove, and a ratchet is arranged on the groove bottom of the first relay groove and matched with a pawl on the first rotating shaft.
Preferably, the oxygen metering piece further comprises a water discharging piece, a speed reducing piece and a rotating number counting piece, and the water discharging piece, the speed reducing piece and the rotating number counting piece are all arranged on the metering transmission piece; the metering transmission part comprises an oxygen discharge pipe, a reducing pipe, a follower rod, a transmission disc and a second bevel gear, one end of the oxygen discharge pipe penetrates through the side wall of the oxygen humidification shell and then extends into the oxygen humidification shell, the reducing pipe is a concentric reducing pipe, the small end of the reducing pipe is communicated with one end of the oxygen discharge pipe, and the large end face of the reducing pipe is closed; one end of the follower rod is arranged on the other end surface of the reducing pipe, and the other end of the follower rod penetrates out of the oxygen humidifying shell; the transmission disc is fixedly sleeved on the small head of the reducing pipe, the second bevel gear is arranged on one end face of the transmission disc, and the second bevel gear is meshed with the first bevel gear.
Preferably, the metering piece comprises an oxygen metering pipe, the oxygen metering pipe is in a shape of a vortex line pipe, the number of turns of the oxygen metering pipe is more than 1, the oxygen metering pipe is arranged on the other end face of the transmission disc, and one end of the oxygen metering pipe is communicated with the reducing pipe; the oxygen metering pipes are evenly distributed around the circumference of the transmission disc;
the drainage piece comprises a drainage relay ring and a drainage pipe, wherein a second relay groove is formed in the inner side surface of the drainage relay ring, and the second relay groove is in the shape of an annular groove; the drainage relay ring is sleeved on the side wall of the large end of the reducing pipe, a sliding sealing ring is arranged between the drainage relay ring and the reducing pipe, and the drainage relay ring is communicated through a drainage relay through hole in the reducing pipe; the drainage relay ring is fixedly connected to the oxygen humidification shell through a fixing rod, one end of the drainage pipe is vertically connected to the drainage relay ring in a through mode, and the other end of the drainage pipe extends to a position below the humidification liquid level in the oxygen humidification shell;
the speed reducer comprises a first metal sheet, an electromagnetic fixing tube and an electromagnetic coil, the first metal sheet is connected to the oxygen conveying pipe, the electromagnetic fixing tube is arranged on the oxygen humidifying shell, and the electromagnetic coil is embedded in the electromagnetic fixing tube; the rotating turn number counting part comprises second metal sheets and a magnetic induction probe, and the second metal sheets are uniformly distributed around the circumferential direction of the follower rod; the magnetic induction probe is arranged on the oxygen humidifying shell.
The invention at least comprises the following beneficial effects:
1) The oxygen generator with the automatic flow control device has reasonable structural design, compact structure, energy-saving metering and humidifying processes, high oxygen output metering precision, capability of simultaneously humidifying and outputting oxygen, capability of changing the humidification degree of the oxygen according to the output flow of the oxygen and high oxygen inhalation comfort of patients;
2) The oxygen generator with the automatic flow control device is provided with an oxygen humidifying shell, a low-oxygen humidifying part, a high-oxygen humidifying part, a metering transmission part and an oxygen metering pipe, wherein oxygen with rough flow is conveyed into the oxygen humidifying shell through the low-oxygen humidifying part and the high-oxygen humidifying part according to the oxygen inhalation concentration of a patient and is humidified by humidifying liquid in the oxygen humidifying shell; the metering transmission part is driven by the low-oxygen humidifying part and the high-oxygen humidifying part to drive the oxygen metering pipe in a vortex line pipe shape to accurately measure and output oxygen so as to improve the oxygen output metering precision and humidify and meter the oxygen;
3) The oxygen generator with the automatic flow control device is provided with a first oxygen delivery control part, a first oxygen flow metering power part, a second oxygen delivery control part and a second oxygen flow metering power part, when a patient needs low-concentration oxygen therapy, the first oxygen delivery control part is only needed to be started to drive the first oxygen flow metering power part to rotate, and when the oxygen humidity is increased, the first oxygen flow metering power part transmits low rotating speed to the metering transmission part; when a patient needs middle-high concentration oxygen therapy, the second oxygen delivery control part is started to crush oxygen into small bubbles, the contact area of the oxygen and the humidification liquid is increased, the oxygen humidification degree is improved, the second oxygen delivery control part drives the second oxygen flow metering power part to rotate, and then the metering transmission part is driven to rotate at a high rotating speed, so that the metering and output speed of the oxygen metering pipe is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a front view of an oxygen generator with an automatic flow control device according to the present invention;
FIG. 2 is a top view of the oxygen generator with automatic flow control device of the present invention;
FIG. 3 is a schematic view of a left side perspective structure of an oxygen generator with an automatic flow control device according to the present invention;
FIG. 4 is a schematic diagram of the right side perspective structure of the oxygen generator with the automatic flow control device according to the present invention;
FIG. 5 isbase:Sub>A schematic perspective view of the cross section along the direction A-A in FIG. 1 of the oxygen generator with the automatic flow control device of the present invention;
FIG. 6 is a front view of the cross section B-B of FIG. 2 of the oxygen generator with the automatic flow control device of the present invention;
fig. 7 is a schematic left side perspective view of a section in the direction B-B in fig. 2 of an oxygen generator with an automatic flow control device according to the present invention;
FIG. 8 is a schematic diagram of the right side perspective view of the cross section in the direction B-B of FIG. 2 of the oxygen generator with the automatic flow control device of the present invention;
FIG. 9 is a schematic view of the worm wheel of the oxygen generator with automatic flow control device of the present invention;
fig. 10 is a schematic view showing the connection relationship between the pawl and the first rotating shaft in the oxygen generator with the automatic flow control device of the present invention.
Wherein: 1-oxygen humidifying shell, 2-oxygen conveying pipe, 3-first oxygen conveying branch pipe, 4-first oxygen special valve, 5-liquid supplementing pipe, 6-rotary fixing frame, 7-first rotating shaft, 8-first bevel gear, 9-gas guide plate, 10-second oxygen conveying branch pipe, 11-second oxygen special valve, 12-rotary box, 13-oxygen spraying pipe, 14-second rotating shaft, 15-worm, 16-worm gear, 17-ratchet, 18-pawl, 19-spring, 20-oxygen discharging pipe, 21-reducing pipe, 22-follow rod, 23-transmission disc, 24-second bevel gear, 25-oxygen metering pipe, 26-water discharging relay ring, 27-water discharging pipe, 28-fixing rod, 29-first metal sheet, 30-electromagnetic fixing pipe, 31-magnetic induction probe and 32-pressure releasing pipe.
Detailed Description
The technical solution of the present invention will be described in detail by way of embodiments with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: the three cases of A alone, B alone and A and B together exist, and the term "/and" in this document describes another associated object relationship, which means that two relationships may exist, for example, A/and B, which may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.
According to the figures 1-10, the oxygen generator with the automatic flow control device comprises an oxygen humidifying part and an oxygen metering part, wherein the oxygen metering part is arranged on the oxygen humidifying part. Oxygen humidification spare includes oxygen humidification shell 1, hypoxemia humidification spare and hyperoxia humidification spare, hypoxemia humidification spare sets up oxygen humidification shell 1 is last, hyperoxia humidification spare sets up on the hypoxemia humidification spare. Furthermore, the low-oxygen humidification part is used for delivering low-flow oxygen into the oxygen humidification shell 1, and the high-oxygen humidification part is used for delivering high-flow oxygen into the oxygen humidification shell 1, and then the oxygen is discharged for patients after being accurately metered by the oxygen metering part.
The oxygen humidifying shell 1 is in a rectangular box shape. The low oxygen humidification element includes a first oxygen delivery control element disposed on the oxygen humidification housing 1 and a first oxygen flow metering motive element disposed on the first oxygen delivery control element.
The first oxygen delivery control part comprises an oxygen delivery pipe 2, a first oxygen delivery branch pipe 3, a first oxygen special valve 4 and a liquid supplementing pipe 5, one end of the oxygen delivery pipe 2 horizontally penetrates into the oxygen humidification shell 1, and the oxygen delivery pipe 2 is fixedly arranged on the bottom surface of the oxygen humidification shell 1 to support the first oxygen delivery branch pipe 3 and the high oxygen humidification part. The other end of the oxygen conveying pipe 2 is communicated with an oxygen outlet of the oxygen generator. One end of the first oxygen conveying branch pipe 3 is vertically and fixedly communicated with the side wall of one end of the oxygen conveying pipe 2. The first oxygen special valve 4 is arranged at one end of the first oxygen delivery branch pipe 3 to control oxygen in the oxygen delivery pipe 2 to enter the first oxygen delivery branch pipe 3. One end of the liquid supplementing pipe 5 is obliquely and penetratingly arranged on the side wall of one end of the first oxygen delivery branch pipe 3, the penetration position of the liquid supplementing pipe 5 and the first oxygen delivery branch pipe 3 is positioned above the first oxygen special valve 4, and simultaneously, the height of one end of the liquid supplementing pipe 5 is greater than that of the other end of the liquid supplementing pipe 5, so as to prevent the oxygen from being sprayed out of the liquid supplementing pipe 5. Further, two liquid replenishing pipes 5 are arranged, and the two liquid replenishing pipes 5 are uniformly distributed around the first oxygen conveying branch pipe 3 in the circumferential direction. The humidifying liquid in the oxygen humidifying shell 1 flows into the first oxygen conveying branch pipe 3 through the liquid supplementing pipe 5 so as to supplement the humidifying liquid blown out of the first oxygen conveying branch pipe 3 by oxygen. Specifically, oxygen is conveyed from the oxygen conveying pipe 2 to the first oxygen conveying branch pipe 3, the humidifying liquid in the first oxygen conveying branch pipe 3 is blown out from the other end of the oxygen conveying pipe 2, and then the first oxygen flow metering power piece inserted into the other end of the first oxygen conveying branch pipe 3 is pushed. After being blown out, the humidifying liquid in the first oxygen conveying branch pipe 3 is continuously replenished from the liquid replenishing pipe 5, and then a mixture of bubbles and water is continuously formed, so that the first oxygen flow metering power part is effectively pushed.
The first oxygen flow metering power element comprises a rotary fixing frame 6 and a first rotary relay, wherein the rotary fixing frame 6 is arranged on the first oxygen delivery control element, and the first rotary relay is arranged on the rotary fixing frame 6. The rotary fixing frame 6 comprises rotary fixing rods and a first rotary bearing, one end of each rotary fixing rod is fixedly arranged on the side wall of the other port of the first oxygen conveying branch pipe 3, and the rotary fixing rods surround the other port of the first oxygen conveying branch pipe 3 and are circumferentially and uniformly distributed. The first rotating bearing is fixedly arranged at the other ends of the four rotating fixing rods, and the axis of the first rotating bearing is coincided with the axis of the other port of the first oxygen conveying branch pipe 3.
The first rotating relay comprises a first rotating shaft 7, a rotating blade and a first bevel gear 8, wherein the first rotating shaft 7 is arranged on the rotating fixing frame 6, and the rotating blade and the first bevel gear 8 are both arranged on the first rotating shaft 7. One end of the first rotating shaft 7 passes through the first rotating bearing and then extends to the first oxygen delivery branch pipe 3, the first rotating shaft 7 can rotate in the first rotating bearing, and meanwhile, the axis of the first rotating shaft 7 is coincident with the axis of the other port of the first oxygen delivery branch pipe 3. The rotating blade is arranged on the side wall of one end of the first rotating shaft 7, and the rotating blade is positioned in the pipe at the other end of the first oxygen delivery branch pipe 3. The first bevel gear 8 is fixedly arranged at the other end of the first rotating shaft 7. Further, in order to improve the internal compactness of the oxygen generator with the automatic flow control device, reduce the volume and keep the mutual influence between the first oxygen flow metering power part and the oxygen metering part, the other end of the first oxygen conveying branch pipe 3 is provided with an air guide plate 9, the air guide plate 9 is in a right-angle plate shape, a right-angle edge of the air guide plate 9 is fixedly arranged at the other end of the first oxygen conveying branch pipe 3, and the other right-angle edge of the air guide plate 9 is arranged to penetrate through the first rotating shaft 7. So that the oxygen sprayed out from the first oxygen delivery branch pipe 3 is guided by the other right-angle side of the air guide plate 9 and then floats upwards through the side surface of the air guide plate 9.
The high-oxygen humidifying part comprises a second oxygen conveying control part and a second oxygen flow metering power part, the second oxygen conveying control part is arranged on the first oxygen conveying control part, and the second oxygen flow metering power part is arranged on the second oxygen conveying control part. The second oxygen conveying control part comprises a second oxygen conveying branch pipe 10 and a second oxygen special valve 11, the second oxygen conveying branch pipe 10 is arranged on the oxygen conveying pipe 2, and the second oxygen special valve 11 is arranged on the second oxygen conveying branch pipe 10. The second oxygen conveying branch pipe 10 is L-shaped, and one end of the second oxygen conveying branch pipe 10 is vertically and fixedly arranged on one end of the oxygen conveying pipe 2 in a penetrating mode. The second oxygen dedicated valve 11 is disposed at one end of the second oxygen delivery branch pipe 10 to control the delivery of oxygen from the oxygen delivery pipe 2 to the second oxygen delivery branch pipe 10.
The second oxygen flow metering power part comprises a rotating box 12 and a second rotating relay part, wherein the rotating box 12 is arranged on the second oxygen delivery control part, and the second rotating relay part is arranged on the rotating box 12. The rotating box 12 is in a disc butterfly shape, a rotating through hole is formed in one end face of the rotating box 12, and the rotating through hole is communicated with a cavity in the rotating box 12. The rotating box 12 is sleeved on the other end of the second oxygen delivery branch pipe 10 through the rotating through hole, so that the rotating box 12 can rotate on the other end of the second oxygen delivery branch pipe 10. Further, a rotary sealing ring is arranged between the rotary through hole and the second oxygen delivery branch pipe 10. An oxygen ejection pipe 13 is connected to the side edge of the rotary box in a penetrating manner, and the axis of the oxygen ejection pipe 13 coincides with a tangential line of the rotary box. The number of the oxygen output pipes is four, and the four oxygen output pipes 13 are uniformly distributed around the circumference of the rotating box 12. Oxygen enters the cavity in the rotating box 12 through the second oxygen conveying branch pipe 10 and is sprayed out from the oxygen spraying pipe 13 through the cavity. After oxygen sprayed from the oxygen spraying pipe 13 enters the humidifying liquid, a reaction tangential force is applied to the rotating box 12, and the rotating box 12 is further pushed to rotate circumferentially on the other end of the second oxygen conveying branch pipe 10. And the oxygen column rapidly sprayed into the humidification liquid through the oxygen spraying pipe 13 forms small bubbles rapidly to float up along with the rapid rotation of the rotation box 12, and the formation of the small bubbles significantly increases the contact area of the oxygen and the humidification liquid, thereby significantly increasing the humidity of the oxygen. While the oxygen metering member is powered via the second rotary relay by the rapid rotation of the rotary cassette 12.
The second rotary relay comprises a second rotating shaft 14, a worm 15 and a worm wheel 16, the second rotating shaft 14 is arranged on the rotary box 12, the worm 15 is arranged on the second rotating shaft 14, and the worm wheel 16 is arranged on the first rotating shaft 7. One end of the second rotating shaft 14 is horizontally and fixedly arranged on the other end face of the rotating box 12, and the axis of the second rotating shaft 14 is overlapped with the axis of the rotating box 12. The worm 15 is fixedly arranged at the other end of the second rotating shaft 14 and rotates along with the rotation of the second rotating shaft 14. The worm wheel 16 is fitted around the first rotary shaft 7, and the worm wheel 16 meshes with the worm 15. The second rotating shaft 14 transmits the torque of the rotating box 12 to the first rotating shaft 7 through the worm 15 and the worm wheel 16.
Further, a first relay groove is arranged on an inner annular surface of the worm wheel 16, the first relay groove is in an annular groove shape, and an axis of the first relay groove is overlapped with an axis of the worm wheel 16. Ratchets 17 are arranged on the bottom of the first relay groove, and the ratchets 17 are uniformly distributed along the circumferential direction of the first relay groove. The ratchet 17 cooperates with a pawl 18 on the first shaft 7. Specifically, one end of the pawl 18 is hinged to the first rotating shaft 7, and the other end of the pawl 18 is connected to the first rotating shaft 7 through a spring 19. So that the worm wheel 16 realizes unidirectional transmission through the ratchet 17 and the pawl 18. That is, when the low oxygen humidification element is activated to rotate the first rotation shaft 7, the first rotation shaft 7 cannot drive the worm wheel 16 to rotate through the ratchet 17 and the pawl 18, and when the high oxygen humidification element is activated to rotate the second rotation shaft 14, the second rotation shaft 14 can drive the first rotation shaft 7 to rotate through the worm wheel 16, the ratchet 17 and the pawl 18. So as to reduce the rotation resistance of the first rotation relay when the low-oxygen humidifying part is started, and improve the rotation resistance of the second rotation relay when the high-oxygen humidifying part is started, and the effect of reducing the speed of the second rotating shaft 14 is achieved.
Specifically, the humidifying liquid in the oxygen humidifying shell 1 submerges the low-oxygen humidifying part and the high-oxygen humidifying part.
The oxygen measuring part comprises a measuring transmission part, a measuring part, a water discharging part, a speed reducing part and a rotating number counting part, and the measuring part, the water discharging part, the speed reducing part and the rotating number counting part are all arranged on the measuring transmission part. The metering transmission member comprises an oxygen discharge pipe 20, a reducing pipe 21, a follower rod 22, a transmission disc 23 and a second bevel gear 24, one end of the oxygen discharge pipe 20 horizontally penetrates through the side wall of the oxygen humidification shell 1 and then extends into the oxygen humidification shell 1, and the oxygen discharge pipe 20 can circumferentially rotate on the oxygen humidification shell 1. The reducing pipe 21 is a concentric reducing pipe, a small end of the reducing pipe 21 is connected with one end of the oxygen discharge pipe 20 in a penetrating way, and the axis of the reducing pipe 21 is overlapped with the axis of the oxygen discharge pipe 20. The big end face of the reducing pipe 21 is closed. One end of the follower rod 22 is horizontally and fixedly arranged on the other end surface of the reducing pipe 21, the other end of the follower rod 22 penetrates through the oxygen humidifying shell 1, and the axis of the follower rod 22 is overlapped with the axis of the reducing pipe 21. The oxygen outlet pipe 20 is used for discharging the humidified oxygen for the patient, and the reducing pipe 21 is used for discharging the humidification liquid conveyed by the metering member through the water discharging member.
The transmission disc 23 is disc-shaped, the transmission disc 23 is fixedly sleeved on the small end of the reducing pipe 21, and the depth of the transmission disc 23 immersed in the humidifying liquid is not more than the radius of the transmission disc 23 and not less than 1/3 of the radius of the transmission disc 23. So that the transmission disc 23 can drive the reducing pipe 21 and the oxygen outlet pipe 20 to rotate. The second bevel gear 24 is fixedly arranged on an end face of the transmission disc 23, and the second bevel gear 24 is meshed with the first bevel gear 8. When the first bevel gear 8 is driven to rotate by the first rotating shaft 7, the transmission disc 23 is driven to rotate by the second bevel gear 24. The oxygen entering the oxygen humidifying shell 1 is temporarily stored in a cavity between the liquid level of the humidifying liquid and the top surface of the oxygen humidifying shell 1 for being discharged through the oxygen discharging pipe 20 for the patient to use after being metered by the metering piece.
The metering part comprises an oxygen metering pipe 25, and the oxygen metering pipe 25 is arranged on the transmission disc 23. The oxygen metering pipe 25 is in a vortex line pipe shape, and the number of turns of the oxygen metering pipe 25 is more than 1. The oxygen metering tube 25 is fixedly arranged on the other end face of the transmission disc 23, the axis of the oxygen metering tube 25 is overlapped with the axis of the transmission disc 23, and one end of the oxygen metering tube 25 is communicated with the reducing tube 21. The oxygen metering pipes 25 are eight, eight the oxygen metering pipes 25 surround the transmission disc 23 and are circumferentially and evenly distributed. Further, the outward rotation direction of the oxygen metering pipe 25 is the same as the rotation direction of the transmission disc 23, so that when the transmission disc 23 drives the oxygen metering pipe 25 to rotate, the humidification liquid can be filled into the other end of the oxygen metering pipe 25, and the oxygen in the oxygen metering pipe 25 is squeezed into the reducing pipe 21 through the humidification liquid and is discharged from the oxygen discharge pipe 20 through the reducing pipe 21. When the humidification fluid enters the reducing pipe 21 through the oxygen metering pipe 25, the humidification fluid flows from the small end of the reducing pipe 21 to the large end of the reducing pipe 21. Because the number of turns of the oxygen metering pipe 25 is greater than 1, at least one section of water column always exists in the oxygen metering pipe 25 in the rotating process, so that the oxygen in the reducing pipe 21 is prevented from being reversely discharged from the oxygen metering pipe 25 into the oxygen humidifying shell 1. Because the oxygen amount delivered by each oxygen metering tube 25 is fixed, the oxygen supply amount can be accurately measured by calculating how many oxygen metering tubes 25 deliver oxygen to the reducing tube 21 in unit time.
The drain member includes a drain relay ring 26 and a drain pipe 27, the drain relay ring 26 being provided on the reducing pipe 21, and the drain pipe 27 being provided on the drain relay ring 26. A second relay groove is arranged on the inner side surface of the drainage relay ring 26, and the second relay groove is in an annular groove shape. The drainage relay ring 26 is sleeved on the large-end side wall of the reducing pipe 21, a sliding seal ring is arranged between the drainage relay ring 26 and the reducing pipe 21, and the drainage relay ring 26 is communicated through a drainage relay through hole in the reducing pipe 21. The plurality of drainage relay through holes are evenly distributed around the circumference of the large-head side wall of the reducing pipe 21. And the humidifying liquid flowing into the reducing pipe 21 is caused to flow from the drain relay through hole to the second relay tank. Further, the drainage relay ring 26 is fixedly connected to the oxygen humidification housing 1 by fixing rods 28 to prevent the drainage relay ring 26 from rotating. One end of the drain pipe 27 is vertically connected to the drain relay ring 26, the drain pipe 27 is connected to the second relay tank, and the other end of the drain pipe 27 extends to a position below the humidification liquid level. So as to discharge the humidification liquid out of the reducing pipe 21 and prevent the oxygen inside the reducing pipe 21 from flowing backward into the oxygen humidification housing 1.
The speed reducer comprises a first metal sheet 29, an electromagnetic fixing tube 30 and an electromagnetic coil, wherein the first metal sheet 29 is fixedly connected to the side wall of the other end of the oxygen conveying tube 2, and the first metal sheets 29 are circumferentially and uniformly distributed around the oxygen conveying tube 2. The electromagnetic fixing tube 30 is fixedly arranged on the oxygen humidification shell 1, the axis of the electromagnetic fixing tube 30 intersects with the axis of the oxygen delivery tube 2, and the electromagnetic coil is fixedly embedded in the electromagnetic fixing tube 30. When the oxygen delivery pipe 2 needs to be decelerated, current is introduced to the electromagnetic coil to generate a magnetic field, and attraction force is generated on the first metal sheet 29, so that the rotating speed of the oxygen delivery pipe 2 is accurately adjusted.
The rotation number counting part comprises a second metal sheet and a magnetic induction probe 31, and the second metal sheets are uniformly distributed around the circumference of the follower rod 22. The magnetic induction probe 31 is fixedly arranged on the oxygen humidification housing 1, and the axis of the magnetic induction probe 31 intersects with the axis of the follower rod 22. The magnetic induction probe 31 can detect the rotation speed of the follower rod 22 by detecting the number of the second metal sheets rotating within a certain time, and further detect the rotation speed of the transmission disc 23, and finally calculate how many oxygen metering tubes 25 deliver oxygen to the reducing tube 21 per unit time.
Furthermore, a pressure relief piece is arranged on the top surface of the oxygen humidification shell 1, the pressure relief piece comprises a pressure relief pipe 32 and a third oxygen special valve, one end of the pressure relief pipe 32 is arranged on the top surface of the oxygen humidification shell 1 in a penetrating mode, and the other end of the hydraulic pipe is communicated to the oxygen generator so as to convey redundant oxygen to the oxygen generator. The third oxygen dedicated valve is arranged on the pressure relief pipe 32 to control the redundant oxygen in the oxygen humidifying shell 1 to enter the pressure relief pipe 32.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (8)
1. An oxygen generator with automatic flow control device is characterized by comprising:
the oxygen humidifying part comprises an oxygen humidifying shell, a low-oxygen humidifying part and a high-oxygen humidifying part, the low-oxygen humidifying part is used for delivering low-flow oxygen into the oxygen humidifying shell and humidifying the oxygen humidifying shell according to needs on the oxygen humidifying shell, and the high-oxygen humidifying part is used for delivering high-flow oxygen into the oxygen humidifying shell and humidifying the oxygen humidifying shell according to needs on the low-oxygen humidifying part;
the oxygen metering piece is arranged on the oxygen humidifying piece and comprises a metering transmission piece and a metering piece, the metering transmission piece is driven by the low-oxygen humidifying piece and the high-oxygen humidifying piece on the oxygen humidifying shell, and the metering transmission piece drives the connected metering piece to meter the humidified oxygen and then discharge the oxygen for a patient to use; the low oxygen humidifying part comprises a first oxygen delivery control part and a first oxygen flow metering power part, wherein the first oxygen delivery control part delivers oxygen into the oxygen humidifying shell on the oxygen humidifying shell and pushes the first oxygen flow metering power part connected with the first oxygen delivery control part to rotate; the first oxygen conveying control part comprises an oxygen conveying pipe, a first oxygen conveying branch pipe, a first oxygen special valve and a liquid supplementing pipe, one end of the oxygen conveying pipe penetrates into the oxygen humidifying shell, and the other end of the oxygen conveying pipe is communicated with an oxygen outlet of the oxygen generator; one end of the first oxygen conveying branch pipe penetrates through the side wall of one end of the oxygen conveying pipe, the first oxygen special valve is arranged at one end of the first oxygen conveying branch pipe, one end of the liquid supplementing pipe is obliquely arranged on the side wall of one end of the first oxygen conveying branch pipe in a penetrating mode, and the penetrating position of the liquid supplementing pipe and the first oxygen conveying branch pipe is located above the first oxygen special valve.
2. The oxygen generator with automatic flow control device of claim 1, wherein said first oxygen flow metering power element comprises a rotary mount and a first rotary relay, said rotary mount being disposed on said first oxygen delivery control element, said first rotary relay being disposed on said rotary mount; the rotary fixing frame comprises a rotary fixing rod and a first rotary bearing, one end of the rotary fixing rod is arranged at the other end of the first oxygen conveying branch pipe, and the first rotary bearing is fixedly arranged at the other end of the rotary fixing rod; the first rotary relay includes a first rotary shaft, a rotary blade, and a first bevel gear, one end of the first rotary shaft passes through the first rotary bearing, the rotary blade is disposed on one end of the first rotary shaft, and the first bevel gear is disposed on the other end of the first rotary shaft.
3. The oxygen generator with automatic flow control device according to claim 2, wherein said high oxygen humidifying element comprises a second oxygen delivery control element and a second oxygen flow metering motive element, said second oxygen delivery control element being disposed on said first oxygen delivery control element, said second oxygen flow metering motive element being disposed on said second oxygen delivery control element; the second oxygen conveying control part comprises a second oxygen conveying branch pipe and a second oxygen special valve, the second oxygen conveying branch pipe is L-shaped, one end of the second oxygen conveying branch pipe is arranged at one end of the oxygen conveying pipe in a penetrating mode, and the second oxygen special valve is arranged on the second oxygen conveying branch pipe.
4. The oxygen generator with the automatic flow control device according to claim 3, wherein the second oxygen flow metering power element comprises a rotary box and a second rotary relay, the rotary box is in a disc butterfly shape, a rotary through hole is arranged on one end face of the rotary box, and the rotary box is sleeved on the other end of the second oxygen delivery branch pipe through the rotary through hole; an oxygen spraying pipe is connected to the side edge of the rotating box in a penetrating mode, and the axis of the oxygen spraying pipe is overlapped with a tangent line of the rotating box.
5. The oxygen generator with an automatic flow control device according to claim 4, wherein the second rotation relay member comprises a second rotation shaft, a worm and a worm wheel, one end of the second rotation shaft is arranged on the other end face of the rotation box, the worm is arranged on the other end of the second rotation shaft, the worm wheel is sleeved on the first rotation shaft, and the worm wheel is meshed with the worm.
6. The oxygen generator with the automatic flow control device according to claim 5, wherein a first relay groove is formed in an inner annular surface of the worm wheel, the first relay groove is in the shape of an annular groove, a ratchet is arranged on the bottom of the first relay groove, and the ratchet is matched with a pawl on the first rotating shaft.
7. The oxygen generator with the automatic flow control device according to claim 6, wherein the oxygen metering element further comprises a drainage element, a speed reducing element and a rotation number counting element, and the drainage element, the speed reducing element and the rotation number counting element are all arranged on the metering transmission element; the metering transmission part comprises an oxygen discharge pipe, a reducing pipe, a follower rod, a transmission disc and a second bevel gear, one end of the oxygen discharge pipe penetrates through the side wall of the oxygen humidification shell and then extends into the oxygen humidification shell, the reducing pipe is a concentric reducing pipe, the small end of the reducing pipe is communicated with one end of the oxygen discharge pipe, and the large end face of the reducing pipe is closed; one end of the follower rod is arranged on the other end surface of the reducing pipe, and the other end of the follower rod penetrates out of the oxygen humidifying shell; the transmission disc is fixedly sleeved on the small head of the reducing pipe, the second bevel gear is arranged on one end face of the transmission disc, and the second bevel gear is meshed with the first bevel gear.
8. The oxygen generator with the automatic flow control device according to claim 7, wherein the metering member comprises an oxygen metering pipe, the oxygen metering pipe is in a shape of a spiral pipe, the number of turns of the oxygen metering pipe is greater than 1, the oxygen metering pipe is arranged on the other end face of the transmission disc, and one end of the oxygen metering pipe is communicated with the reducing pipe; the oxygen metering pipes are evenly distributed around the circumference of the transmission disc;
the drainage piece comprises a drainage relay ring and a drainage pipe, wherein a second relay groove is formed in the inner side surface of the drainage relay ring, and the second relay groove is in the shape of an annular groove; the drainage relay ring is sleeved on the side wall of the large end of the reducing pipe, a sliding sealing ring is arranged between the drainage relay ring and the reducing pipe, and the drainage relay ring is communicated through a drainage relay through hole in the reducing pipe; the drainage relay ring is fixedly connected to the oxygen humidification shell through a fixing rod, one end of the drainage pipe is vertically connected to the drainage relay ring in a through mode, and the other end of the drainage pipe extends to a position below the humidification liquid level in the oxygen humidification shell;
the speed reducer comprises a first metal sheet, an electromagnetic fixing tube and an electromagnetic coil, the first metal sheet is connected to the oxygen conveying pipe, the electromagnetic fixing tube is arranged on the oxygen humidifying shell, and the electromagnetic coil is embedded in the electromagnetic fixing tube; the rotating turn number counting part comprises second metal sheets and a magnetic induction probe, and the second metal sheets are uniformly distributed around the circumferential direction of the follower rod; the magnetic induction probe is arranged on the oxygen humidifying shell.
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| CN202211567899.6A CN115645691B (en) | 2022-12-08 | 2022-12-08 | Oxygenerator with flow automatic control device |
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| CN202211567899.6A CN115645691B (en) | 2022-12-08 | 2022-12-08 | Oxygenerator with flow automatic control device |
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| CN115645691A (en) | 2023-01-31 |
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