CN212617584U - Integrated oxygen supply valve and continuous oxygen supply device - Google Patents

Abstract

The utility model discloses an integrated oxygen supply valve and a continuous oxygen supply device, wherein the integrated oxygen supply valve comprises a gas cylinder interface, an oxygen output port, an inflation interface and a flow control valve, the inflation interface is communicated with the gas circuit of the gas cylinder interface, and high-pressure oxygen is output from the oxygen output port through the flow control valve; the flow control valve is characterized by comprising a pressure reducing valve and an adjusting plate; the regulating plate is arranged between the pressure reducing valve and the oxygen output port, and is provided with a plurality of flow limiting through holes and a closing device for controlling the output flow of oxygen. The oxygen supply valve integrates all functional components on the valve body; the oxygen supply device with the valve is miniaturized, and can be widely applied to plateau areas.

Description

Integrated oxygen supply valve and continuous oxygen supply device

Technical Field

The utility model relates to an oxygen supply device mainly is applied to fields such as medical treatment, fire control, army, emergency rescue, public safety, safety in production, especially an integrated oxygen supply valve and is equipped with continuous type oxygen supply device of this valve.

Background

Under standard atmospheric pressure, the oxygen content in the air is about 28%, and the normal operation of each function of our body can not leave oxygen, but in some plateau areas, because of the natural reason of high altitude or the disease cause of patients, the oxygen deficiency of the body can cause injury to human organs, and in severe cases, the oxygen deficiency of the body can harm life. According to statistics, the plateau area of China occupies about one fourth of the national soil area, and the situation that the number of oxygen molecules can be gradually reduced along with the increase of the altitude due to the high altitude and the thin air in the plateau area becomes a great threat to human survival. The medical science proves that the altitude anoxia affects the human health in different degrees, mild people can have obvious conditions of dyspnea, chest distress, palpitation, hypomnesis and the like, and severe people can have brain death or permanent death in 3-5 minutes of anoxia. The oxygen inhalation mask is difficult to adapt to normal people in a plateau oxygen-poor environment, the symptoms can be relieved by timely inhaling oxygen when a plateau reaction occurs, and patients with basic diseases also have good health care effect on the health of the patients by normally inhaling oxygen in the rehabilitation or family health care process.

Most of the existing oxygen inhalation devices are traditional oxygen bottles, the oxygen inhalation devices adopt steel bottles or aluminum bottles for storing 15MPa oxygen, the oxygen can be used by human bodies after being adjusted by a pressure reducing valve and a flow regulating valve, the weight is heavy, the movement is inconvenient, the operation is complex, and the occupied volume is large. Some of the oxygen generating devices utilize commercial power to generate oxygen by filtering nitrogen in air, have heavy weight, need to be used in places with electricity, and are inconvenient to carry. And part of the oxygen therapy devices adopt an oxygen storage principle, have small volume and can also be used in occasions without power supplies, but the output flow is unstable and is difficult to adjust, if the output flow needs to be confirmed, a flowmeter needs to be connected, the volume is increased, and the oxygen therapy devices are difficult to carry.

SUMMERY OF THE UTILITY MODEL

Based on the consideration, the portable oxygen supply device is developed by combining the prior company technology, the oxygen supply device adopts a carbon fiber composite winding gas cylinder, functions such as a pressure reducing valve, an inflation valve, a pressure display device, a safety valve, flow regulation and the like are integrated on an integrated oxygen supply valve, the portable oxygen supply device has the advantages of small volume, light weight, high pressure (20 MPa) for storing oxygen, convenience in operation and the like, is convenient to carry and use at any time, can conveniently regulate output flow by rotating the integrated oxygen supply valve body to regulate different gears, is intuitive and accurate in gear, and is basically constant in output flow no matter the pressure in the gas cylinder is high or low. The multifunctional medical robot can be widely applied to home health care, mountain climbing, emergency rescue or officers and soldiers in the army performing tasks on plateau.

The utility model aims at providing an integrated oxygen supply valve which has novel and unique structure, can quickly select oxygen output flow and is convenient to use; the specific technical scheme is as follows:

an integrated oxygen supply valve comprises a gas cylinder interface, an oxygen output port, an inflation interface and a flow control valve, wherein the inflation interface is communicated with a gas path of the gas cylinder interface, and high-pressure oxygen is output from the oxygen output port through the flow control valve; the flow control valve comprises a pressure reducing valve and an adjusting plate; the regulating plate is arranged between the pressure reducing valve and the oxygen output port, and is provided with a plurality of stepped flow limiting through holes for controlling the closing of the oxygen output flow or selecting one to communicate the outlet of the pressure reducing valve with the oxygen output port.

Further, the pressure reducing valve comprises a pressure reducing spring, a valve core and a valve body; the valve core is provided with a through hole along the axial direction, and two ends of the through hole are respectively connected with the throttling port and the decompression cavity.

Further, the outlet of the pressure reducing valve and the input end of the oxygen output port are both provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the sealing ring keeps the sealing of the communication channel between the outlet of the pressure reducing valve and the oxygen output port.

Further, the adjusting knob of the flow control valve is provided with a locking mechanism.

Further, the inflation interface is provided with a one-way valve.

And the safety valve interface is communicated with the gas cylinder interface gas circuit.

Further, the safety valve interface is provided with a safety valve, the safety valve is composed of a plug screw, a blasting diaphragm and a gasket which are arranged from outside to inside, the blasting pressure of the blasting diaphragm is 27-30 Mpa, and the plug screw and the gasket are respectively provided with a through hole which enables the inner surface and the outer surface of the blasting diaphragm to be respectively communicated with the gas cylinder interface or the atmosphere.

And the gas cylinder is further provided with a pressure display interface used for connecting a pressure display device, and the pressure display interface is communicated with the gas cylinder interface gas circuit.

The utility model also discloses a continuous oxygen supply device, which comprises an oxygen supply valve and a bottle body; the integrated oxygen supply valve described above is used as an oxygen supply valve to control the oxygen output flow.

Further, the bottle is carbon fiber composite winding gas cylinder.

The integrated oxygen supply valve body of the utility model is provided with a pressure reducer interface, an inflation valve interface, a pressure display device interface, an output flow control interface and a safety valve discharging device interface, and all functional components can be integrated on the valve body; a miniaturized design is implemented. The successful research and development of the oxygen supply device can be widely applied to plateau regions, can be applied to officers and soldiers in plateau regions to carry about, has important military benefits for improving the viability and the fighting capacity of the officers and soldiers in the plateau regions, can also be used for mountaineering enthusiasts, can be used for emergency rescue, can be used for medical care of families, is convenient to operate, and can provide oxygen for demanders at any time due to smaller volume and weight.

Drawings

FIG. 1 is an exploded view of the integrated oxygen supply valve of the present invention;

FIG. 2 is a schematic view of the safety valve;

FIG. 3 is a schematic view of the inflation valve;

FIG. 4 is a schematic view of the structure of the adjustment tab;

FIG. 5 is a schematic view of the structure of the adjustment disk;

FIG. 6 is an exploded view of the relief valve 1;

FIG. 7 is an exploded view of the relief valve assembly shown in FIG. 2;

fig. 8 is a schematic sectional view of the integrated oxygen supply valve of the present invention.

In the figure: 1. an air outlet; 2. an O-shaped ring at the air outlet; 3. an upper housing; 4. a nut; 5. a spring washer; 6. fixing the disc; 7. a regulating sheet; 701. positioning a groove; 702. a first dosing hole; 703. a second quantification aperture; 8. a steel ball spring; 9. a spacing pin; 10. a relief spring; 11. an O-shaped ring of a lower shell of the pressure reducing valve; 12. a lower housing; 13. a safety valve gasket; 14. plugging by screwing; 15. a security patch; 16. a valve body; 17. an O-shaped ring is connected with the gas cylinder; 18. compounding and winding the gas cylinder; 19. an inflation valve O-shaped ring; 20. a piston; 21. an inflation plug screw; 22. a pressure gauge; 23. an inflation valve spring; 24. an adjusting disk; 2401. positioning teeth; 2402. an upper housing chute; 2403. a steel ball spring groove; 2404. a display panel fixing groove; 2405. a lower housing chute; 25. a lower pressure reducing valve housing; 26. a shell clamp spring; 27. a pressure reducing valve core; 28. a pressure reducing valve O-shaped ring; 29. a screw; 30. an upper pressure reducing valve housing; 31. fixing a disc O-shaped ring; 32. steel balls; 33. a ventilation airway O-shaped ring; 34. a display panel; 35. a gasket; 36. an air outlet screw; 37. and an air outlet clamp spring.

Detailed Description

The present invention will be more fully described with reference to the following examples. The present invention may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein.

For ease of description, spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 and 8, the continuous oxygen supply device in this embodiment includes an integrated oxygen supply valve and an oxygen cylinder; the oxygen cylinder can be a common steel cylinder; the carbon fiber composite wound gas cylinder 18 with higher pressure resistance and lighter weight is preferably selected, so that the volume and the weight of the device are further reduced; the bottle is filled with compressed oxygen.

The integrated oxygen supply valve comprises a valve body 16 at the lower end and a flow control valve at the upper end; the bottom end of the valve body 16 is provided with a gas cylinder interface connected with a gas cylinder; the gas cylinder interface is provided with a gas cylinder connecting hole, and a gas cylinder interface O-shaped ring 17 is arranged between the gas cylinder interface and the gas cylinder. The O-shaped ring 17 of the gas cylinder connector is a tetrafluoro sealing ring. The upper end of the valve body 16 is provided with a valve body air outlet communicated with the inlet of the flow control valve.

The upper end of the flow control valve is an oxygen output port, which is called an air outlet for short, and the flow control valve is provided with a rotatable adjusting disc 24. The switching state of the oxygen supply device and the selective output of the oxygen flow can be realized by rotating the adjusting disk 24 of the integrated oxygen supply valve. The figure only shows two gears of 2L/min and 5L/min; if the flow rate is needed to be increased by increasing the corresponding flow limiting through holes; the flow of the flow limiting through hole depends on the output pressure of the outlet of the pressure reducing valve and the area of the flow limiting through hole; the flow formula is prior art and is not described herein.

The valve body 16 is also provided with a pressure display interface, for example, arranged on the side wall; the air outlet of the pressure display interface is communicated with the air bottle connecting hole; a pressure gauge can be installed, and the pressure gauge 22 for displaying pressure displays the pressure of the residual gas in the bottle in real time; of course, a pressure switch can be used for indication, and the pressure switch can be used for reminding that the pressure is too low to alarm. The integrated oxygen supply valve may also be provided with an inflation valve for repeated inflation of the oxygen supply apparatus, and the pressure gauge 22 may monitor the residual pressure in the bottle.

The pressure display device adopts a pressure gauge, and the pressure gauge adopts a 35MPa oil-free pressure gauge and is used for displaying the oxygen pressure in the gas cylinder in real time.

The valve body 16 is also provided with a safety valve interface, for example, arranged on the side wall; the safety valve interface is used for installing a safety valve, and an air outlet of the safety valve interface is communicated with the air bottle connecting hole; avoid the accident of inflation overpressure.

As shown in fig. 2, the safety valve is composed of a plug 14, a safety sheet 15 and a safety valve gasket 13. The center of the plug 14 is provided with a through hole, the plug 14 is connected with the safety valve interface through threads, the plug 14 fixes the safety sheet 15 on the plane of the inner opening of the safety valve interface through the safety valve gasket 13, and the inner opening is blocked by the safety sheet 15. The pressure-bearing capacity (27-30) Mpa of the safety sheet 15. When the gas in the gas cylinder is in overpressure, the gas in the gas cylinder is exhausted in time in order to prevent the overpressure from damaging the integrated oxygen supply valve and the gas cylinder. The safety sheet 15 of the safety valve is a nickel-based metal sheet, and the metal sheet is broken to exhaust when the gas in the gas cylinder reaches (27-30) MPa.

For repeated use, an inflation interface is also provided on the valve body 16; the air outlet of the inflation connector is communicated with the air bottle connecting hole; the gas cylinder is convenient to be inflated by the inflating tool.

As shown in fig. 3, the inflation valve is a component for inflating high-pressure oxygen into the gas cylinder, and is connected with the inflation tool to repeatedly inflate the gas cylinder, and the inflation valve adopts a one-way valve structure and is internally provided with an inflation plug screw 21, a piston 20, an inflation valve spring 23 and other parts. The inflation screw plug 21 and the valve body are sealed by an end surface O-shaped ring 19, and a sealing ring 19 is arranged between the outer wall of the piston 20 and the valve body; an airtight cavity is formed at the rear end of the piston, and an inflation valve spring 23 is arranged in the airtight cavity and pushes the piston 2 leftwards. The front part of the piston 20 is inserted into a piston jack at the rear part of the screw plug 21, the piston and the inner wall of the piston jack of the screw plug are sealed by a front piston O-ring 19, when the external pressure is higher than the internal pressure, high-pressure oxygen enters from a through hole at the center of the inflation screw plug to push the piston to move rightwards, an inflation valve spring 23 is compressed, and after the front piston O-ring is separated from the piston jack, the high-pressure oxygen enters into an inner cavity from the piston jack and enters into the gas cylinder along an air passage arranged in the inner cavity. When the inflation is stopped, the piston is restored to the initial position under the combined action of the inflation valve spring 23 and the internal gas pressure, and the front end of the piston and the piston jack are sealed by the front O-shaped ring of the piston, so that the gas sealing is ensured.

The integrated oxygen supply valve is a functional component of the oxygen supply device, and the valve body 16 is provided with a ventilation hole channel for connecting each functional component of the integrated oxygen supply valve; the integrated oxygen supply valve integrates the functions of a pressure reducing valve, an inflation valve, a safety valve, a pressure display device and the like into a whole, and can adjust the output flow by rotating the adjusting disc.

The flow control valve includes a shift adjustment mechanism and a pressure reducing valve.

The pressure reducing valve comprises a pressure reducing valve upper shell 30, a pressure reducing valve lower shell 25 and a pressure reducing valve core 27; the upper pressure valve housing 30 is screwed to the outlet of the valve body 16. The inner wall of the upper pressure valve shell 30 is provided with a boss, the middle part of the lower pressure valve shell 25 is provided with a flange, and the boss fixedly connects the lower pressure valve shell 25 with the output port of the valve body 16 through the flange. The top end of the lower shell 25 of the pressure reducing valve is provided with a pressure reducing spring guide post, and the center of the top end of the pressure reducing spring guide post is provided with a pressure reducing piston cavity; a throttling opening is arranged between the bottom of the pressure reducing piston cavity and the air inlet. The lower end of the pressure reducing valve core 27 is provided with a pressure reducing piston; the upper end is a closed piston. The area of the end face of the pressure-reducing piston is smaller than that of the end face of the closing piston. The pressure-reducing piston and the closing piston may be provided integrally. The outer wall of the pressure-reducing piston is sealed from the pressure-reducing piston chamber by a sealing ring 28. The sealing groove can be arranged on the inner wall of the cavity of the pressure reducing piston and also can be arranged on the outer wall of the pressure reducing piston. Similarly, the closing piston is sealed with the closing piston cavity at the upper end of the inner cavity of the upper shell 30 of the pressure reducing valve through a sealing ring 28; the sealing groove can be arranged on the inner wall of the closed piston cavity and also can be arranged on the outer wall of the closed piston. A fixed disc O-shaped ring 31 is sleeved outside a top supporting column of the upper shell 30 of the pressure reducing valve.

The inlet of the lower shell 12 of the pressure reducing valve is provided with a filter screen which can filter oxygen. An O-shaped ring 11 of the lower shell of the pressure reducing valve is sleeved outside an inlet of the lower shell 12 of the pressure reducing valve; the outer wall of the upper shell 30 of the pressure reducing valve is provided with a clamp spring groove, and the shell clamp spring 26 is clamped in the clamp spring groove to limit the upper and lower movement between the lower shell 12 and the upper shell 30 of the pressure reducing valve. And a screw hole is arranged below the clamp spring groove, and the upper shell 30 of the pressure reducing valve and the upper end of the valve body 16 are locked and fixed through a screw 29.

The pressure reducing spring 10 is sleeved on the pressure reducing spring guide post. The pressure reducing piston is provided with one or more through holes which are parallel to the central shaft and staggered with the throttling opening. High-pressure oxygen enters the decompression piston cavity through the throttling port, throttles and decompresses through a gap between the decompression piston and the top end face of the decompression piston cavity, and enters the closed piston cavity from the through hole. The elasticity of the pressure reducing spring 10, the pressure of the closed piston cavity and the pressure of the bottom surface of the pressure reducing piston are balanced, and the air pressure of the closed piston cavity is kept constant.

The top wall of the upper pressure valve shell 30 is provided with a pressure reduction output hole which outputs low-pressure oxygen to the gear shifting adjusting mechanism.

The gear shifting adjusting mechanism comprises an adjusting disk 24, an adjusting sheet 7 and a fixed disk 6.

As shown in fig. 4 and 5, the outer edge of the adjusting sheet 7 is provided with a positioning slot 701, and the positioning slot 702 is matched with the positioning teeth 2401 on the inner edge of the adjusting disk 24; the adjusting sheet 7 is mounted on the adjusting disk 24 through a positioning groove and rotates simultaneously with the adjusting disk 24. Two small holes with different apertures are positioned on the adjusting sheet 7 through the rotation of the adjusting disk 24: the first quantitative hole 702 and the second quantitative hole 703 are communicated with the outlet of the fixed disk, and the output flow of the integrated oxygen supply valve is changed by rotating to adjust the size of the aperture; and at other positions, the regulating sheet 7 and the sealing rings arranged up and down isolate the pressure reducing valve core 27 and the fixed disk 6, and the integrated oxygen supply valve is closed. The output flow is related to the aperture of the regulating hole and the pressure difference between the two ends of the regulating hole, the output of the regulating hole is standard atmospheric pressure, and the setting of the aperture and the pressure of the input end are calculated according to the prior art, and are not described again here.

The upper end of the adjusting disc 24 is internally and externally provided with an upper shell sliding chute 2402 respectively for the lower edge of the upper shell 3 to slide; the lower end is provided with a lower shell sliding slot 2405 for the upper edge of the lower shell 12 to slide; a ball spring slot 2403 is provided for receiving a ball spring 8.

As shown in fig. 6 and 7, the fixed disk 6 is provided with an air outlet channel corresponding to the radial position of the adjusting sheet 7, the lower end of the fixed disk 6 is arranged in the sink groove by taking the air outlet channel as the center, and an air passage O-ring 33 can be installed and used for sealing the air passage; when the ventilation air passage is closed, the O-shaped ring of the ventilation air passage ensures the sealing between the fixed disc 6 and the adjusting sheet 7. The position of the gear shifting notch corresponds to the position of the adjusting hole. The gas is closed and the gas is discharged at different gears through the adjusting sheet fixed on the adjusting disk, and the fixing disk is provided with a fixing bolt threaded hole of the gas outlet assembly. The bottom end of the fixed disk close to the outer edge is provided with a plurality of steel ball spring grooves 2403 for containing steel balls 32, and a locking structure is formed by the steel balls 32, the steel ball springs 8 and the steel ball spring containing grooves arranged on the top surface of the adjusting disk 24, so that the relative rotation between the fixed disk and the adjusting disk is blocked. When the adjusting disc is rotated to realize air outlet at different gears, the fixing disc and the spring and the steel balls on the adjusting disc jointly act to complete the fixing of the adjusting disc, so that the locking of different gears is realized.

When the regulating disk 7 is rotated to the closed position; because there is no flow, the air pressure in the closed piston cavity is increased, the pressure on the top surface of the closed piston is greater than the sum of the elastic force of the pressure reducing spring 10 and the pressure on the bottom surface of the pressure reducing piston, and the pressure can push the pressure reducing piston to move downwards until the pressure reducing valve is closed, so that the upper limit of the air pressure in the closed piston cavity is reduced. The lower end of the pressure reducing piston can be provided with a sealing groove corresponding to the throttling opening, and a sealing block is arranged in the sealing groove to block the throttling opening when the pressure reducing valve is closed, so that the sealing effect when the pressure reducing valve is closed is improved. When the area of the end surface of the pressure reducing piston is 10 times that of the end surface of the closing piston, the air pressure of the closing piston cavity can be 1/10 times of the pressure of the gas cylinder; the pressure bearing of the O-shaped ring of the ventilation air passage is reduced when the air passage is closed, and the sealing performance is improved.

A through hole is arranged in the center of the fixed disc 6 and is used as a valve shell fixing hole, and a notch is formed in the inner wall of the valve shell fixing hole; the upper end middle part of casing 30 is provided with the fixed column on the relief pressure valve, and the fixed column inserts the valve casing fixed orifices, and the fixed column can set up flange and notch cooperation, also can set up the notch, utilizes spacer pin 9 to be connected two notches, prevents that casing 30 and fixed disk 6 relative rotation on the relief pressure valve. The upper end surface of the pressure reducing valve upper housing 30 is provided with a pressure reducing gas output hole corresponding to the regulating hole. The decompression gas output hole can be symmetrically arranged by taking the fixed column as a central shaft; the pressure-reducing gas output hole is also provided with a ventilation air passage sealing structure like a fixed disc 6, so that the sealing of the regulating sheet 7 and the upper end surface of the upper shell 30 of the pressure-reducing valve and the sealing of the ventilation air passage are realized.

The air outlet 1 is used for connecting an external nasal oxygen tube for oxygen inhalation, and the outer wall of the air outlet 1 is provided with a clamp spring interface; the clamp spring is used for fixing the upper shell 3, and the lower end of the air outlet 1 is provided with an air outlet O-shaped ring 2 for sealing with the fixed disc; the base of the air outlet 1 is provided with a screw mounting hole which is axially parallel to the air outlet hole, the upper shell 3 is provided with a through hole corresponding to the screw mounting hole, and the air outlet 1 is fixedly connected with the fixed disk 6 through an air outlet screw 36. And a nut 5 and a spring washer 5 are arranged between the air outlet 1 and the fixed disc 6.

The adjusting disk is a knob for adjusting the flow and oxygen supply device switch, is provided with initial and final position limit, and is provided with an upper 3, a lower shell 12, a steel ball spring 8, an adjusting sheet 7 and an installation interface of a display disk 34.

The outer edge of the display disc 34 is provided with claws which are matched with the clamping grooves arranged on the adjusting disc 24, so that the display disc 34 rotates along with the adjusting disc 24, and three numbers are arranged for displaying the working state of the oxygen supply device. The display disc corresponds to the adjusting sheet and is not limited to three states; more gears can be arranged, and corresponding flow regulating holes are formed in the regulating sheet.

The air outlet 1 is provided with a clamp spring groove, and the air outlet clamp spring 37 is inserted in the clamp spring groove; the upper shell 3 is limited to move up and down through the air outlet clamp spring 37; the bottom of the air outlet 1 is provided with a boss, the boss is provided with 3 through holes, and screws penetrate through the boss and the through holes on the top surface of the upper shell 3 and are fixed on the fixed disk 6. And an observation hole is formed in the shell assembly and used for displaying the output flow of the current gear.

According to the medium filled in the gas cylinder, the carbon fiber fully-wound composite gas cylinder with the pressure of 1.1L and the pressure of 20MPa is adopted, and the carbon fiber fully-wound composite gas cylinder is formed by winding an aluminum alloy lining with carbon fibers, so that the gas cylinder has the advantages of light weight, high safety, no fragment generation after blasting and the like.

The oxygen supply device stores high-pressure oxygen of 20MPa, and the oxygen which can be breathed by a patient is output through flow regulation after the pressure of the integrated oxygen supply valve is reduced.

When oxygen is needed to be output, the nasal oxygen tube is inserted into the air outlet, the adjusting disc is rotated clockwise, the adjusting disc 24 is rotated to the needed flow by observing the window of the upper shell 3, the flow is 2L/min, and 5L/min can be selected.

When the apparatus of oxygen supply opened, the intracavity of casing and air outlet disc assembly under the relief pressure valve was entered into to the passageway in the gas cylinder through the valve body, gaseous pressure of export gas is adjusted through the spring in the intracavity to gas, be equipped with the venthole on the fixed disk, when the pressure that gets into the intracavity is too high, gaseous reaction is in the air outlet disc assembly, the air outlet disc assembly can seal the gas outlet of casing under the relief pressure valve, treat that the intracavity pressure reduces the back and open at the effect of spring force down the passageway, oxygen flows into the gas outlet through the gas outlet of casing and the ration hole of adjustment sheet.

The above examples are only for illustrating the present invention, and besides, there are many different embodiments, which can be conceived by those skilled in the art after understanding the idea of the present invention, and therefore, they are not listed here.

Claims (10)

1. An integrated oxygen supply valve comprises a gas cylinder interface, an oxygen output port, an inflation interface and a flow control valve, wherein the inflation interface is communicated with a gas path of the gas cylinder interface, and high-pressure oxygen is output from the oxygen output port through the flow control valve; the flow control valve is characterized by comprising a pressure reducing valve and an adjusting plate; the regulating plate is arranged between the pressure reducing valve and the oxygen output port, and is provided with a plurality of stepped flow limiting through holes for controlling the closing of the oxygen output flow or selecting one to communicate the outlet of the pressure reducing valve with the oxygen output port.

2. The integrated oxygen supply valve of claim 1, wherein the pressure reducing valve comprises a pressure reducing spring, a valve core and a valve body; the valve core is provided with a through hole along the axial direction, and two ends of the through hole are respectively connected with the throttling port and the decompression cavity.

3. The integrated oxygen supply valve of claim 1, wherein the pressure reducing valve outlet and the input end of the oxygen output port are provided with sealing grooves, and sealing rings are arranged in the sealing grooves and maintain the sealing of the communication channel between the pressure reducing valve outlet and the oxygen output port.

4. The integrated oxygen supply valve of claim 1, wherein the adjustment knob of the flow control valve is provided with a locking mechanism.

5. The integrated oxygen supply valve of claim 1 wherein said inflation port is provided with a one-way valve.

6. The integrated oxygen supply valve of claim 1, further comprising a safety valve interface in gas communication with the gas cylinder interface.

7. The integrated oxygen supply valve according to claim 6, wherein the safety valve interface is provided with a safety valve, the safety valve is composed of a plug screw, a blasting diaphragm and a gasket which are arranged from outside to inside, the blasting pressure of the blasting diaphragm is 27-30 MPa, and the plug screw and the gasket are respectively provided with through holes which enable the inside and the outside of the blasting diaphragm to be respectively communicated with the gas cylinder interface or the atmosphere.

8. The integrated oxygen supply valve of claim 1, further comprising a pressure display interface for connection to a pressure display device, said pressure display interface in gas communication with said gas cylinder interface.

9. A continuous oxygen supply device comprises an oxygen supply valve and a bottle body; characterized in that the oxygen output flow is controlled using an integrated oxygen supply valve according to any one of claims 1 to 8 as an oxygen supply valve.

10. The continuous oxygen supply apparatus of claim 9, wherein the cylinder is a carbon fiber composite wound cylinder.

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