CN106620981B - Portable breathing oxygen supply device - Google Patents
Portable breathing oxygen supply device Download PDFInfo
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- CN106620981B CN106620981B CN201710153797.2A CN201710153797A CN106620981B CN 106620981 B CN106620981 B CN 106620981B CN 201710153797 A CN201710153797 A CN 201710153797A CN 106620981 B CN106620981 B CN 106620981B
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- oxygen
- pressure reducing
- flow control
- valve seat
- valve
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/18—Air supply
- B63C11/22—Air supply carried by diver
- B63C11/24—Air supply carried by diver in closed circulation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/02—Gases
- A61M2202/0208—Oxygen
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Animal Behavior & Ethology (AREA)
- Emergency Medicine (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a portable breathing oxygen supply device, which is characterized in that: comprises an oxygen bottle (16), a valve seat (17) which is arranged on the oxygen bottle (16) and is provided with an oxygen circulation channel; the valve seat (17) is respectively provided with a pressure reducing valve and a flow control valve which are matched with an oxygen circulation channel, the inlet of the oxygen circulation channel is positioned above the bottle mouth of the oxygen bottle (16), and the outlet of the oxygen circulation channel is provided with a breathing joint (4). The invention has simple structure and lower cost, can conveniently reduce high-pressure oxygen into low-pressure oxygen suitable for human inhalation through the pressure reducing valve arranged on the valve seat, and can conveniently adjust the flow of output oxygen through the flow control valve arranged on the valve seat, thereby being convenient for common users to carry and use and being suitable for popularization and use.
Description
Technical Field
The invention relates to an oxygen supply device, in particular to a portable breathing oxygen supply device.
Background
At present, most oxygen supply is aimed at the professional fields such as medical treatment or diving, and most structures of oxygen supply equipment are complex, so that the oxygen supply equipment is inconvenient to carry and is inconvenient for common users to use.
Disclosure of Invention
The invention aims to provide a portable breathing oxygen supply device which is convenient for common users to carry and use.
The aim of the invention is achieved by the following technical scheme:
a portable respiration oxygen supply device comprises an oxygen bottle, a valve seat arranged on the oxygen bottle and provided with an oxygen circulation channel; the valve seat is respectively provided with a pressure reducing valve and a flow control valve which are matched with the oxygen circulation channel, the inlet of the oxygen circulation channel is positioned above the bottle mouth of the oxygen bottle, and the outlet of the oxygen circulation channel is provided with a breathing joint.
Further, a connector connected with the valve seat is arranged on the bottle opening of the oxygen bottle, and a connector through hole communicated with the oxygen circulation channel is arranged on the connector.
The oxygen circulation channel comprises a high-pressure chamber arranged at the bottom of the valve seat, a depressurization chamber communicated with the high-pressure chamber and matched with the depressurization valve, an air guide hole communicated with the depressurization chamber and an air outlet communicated with the air guide hole; the breathing joint is connected to the air outlet hole through a hose, and the flow control valve is arranged on the air outlet hole and can adjust the flow of oxygen flowing out of the air outlet hole.
Still further, the relief valve includes a relief valve spool, a relief valve diaphragm disposed on the relief valve spool, and a relief valve spring disposed on the relief valve diaphragm; the pressure reducing valve diaphragm is fixed on the pressure reducing chamber of the valve seat through the pressure reducing valve compression ring, the pressure reducing valve diaphragm divides the pressure reducing chamber into a pressure reducing area and a low pressure area which are mutually independent, the pressure reducing valve spring is positioned in the pressure reducing area, and the low pressure area is respectively communicated with the high pressure chamber and the air guide hole.
In order to facilitate the realization of pressure reduction, a threaded column penetrating through a pressure reducing valve membrane is arranged on the pressure reducing valve core, a pressure reducing valve spring is sleeved on the threaded column, and a nut for fixing the pressure reducing valve spring is arranged on the threaded column.
In order to control the flow of oxygen out, the flow control valve comprises a flow control valve seat which is arranged on the valve seat and is provided with a mounting hole communicated with the air outlet, a flow control valve rod which is matched with the mounting hole of the flow control valve seat and can move up and down along the flow control valve seat, and a flow control valve core which is arranged at the bottom of the flow control valve rod and can pass through the air outlet to enter the air outlet.
Furthermore, the valve rod of the flow control valve is connected in the mounting hole of the valve seat of the flow control valve through threads, and the valve rod of the flow control valve is also provided with a handle.
In order to be convenient for fill oxygen into the oxygen cylinder, still be equipped with quick charge connector on the valve seat, quick charge connector is linked together with the high-pressure chamber through the inlet port that sets up on the valve seat.
In order to better realize the invention, the air inlet end of the quick-filling connector is provided with a filter, the air outlet end of the quick-filling connector is provided with a check valve core matched with a valve seat, and the check valve core is provided with a check valve spring matched with the valve seat.
In order to ensure the effect, still be equipped with the shell including the cladding of oxygen cylinder on the oxygen cylinder, still be equipped with the end cover that is connected with breathing joint and flow control valve disk seat and quick charge joint respectively on the shell, the valve seat sets up inside the shell and is located between end cover and the oxygen cylinder, still be equipped with the shock attenuation filler between oxygen cylinder and the shell.
Compared with the prior art, the invention has the following advantages:
(1) The invention has simple structure and lower cost, can conveniently reduce the high-pressure oxygen into the low-pressure oxygen suitable for human inhalation through the pressure reducing valve arranged on the valve seat, and can conveniently adjust the flow of the output oxygen through the flow control valve arranged on the valve seat, thereby being convenient for common users to carry and use.
(2) The bottle mouth of the oxygen bottle is provided with the connector connected with the valve seat, and the connector is provided with the connector through hole communicated with the oxygen flow passage, so that oxygen in the oxygen bottle can be conveniently guided into the oxygen flow passage on the valve seat through the connector, and the oxygen can be conveniently depressurized in the oxygen flow passage and the flow of the oxygen can be regulated.
(3) The oxygen flow channel comprises a high-pressure chamber, a depressurization chamber, an air guide hole and an air outlet hole, so that high-pressure oxygen in the oxygen bottle can be buffered in the high-pressure chamber conveniently, the high-pressure oxygen can be depressurized in the depressurization chamber through the depressurization valve, and the flow of oxygen output in the air guide hole can be regulated through the flow control valve in the air outlet hole, so that the flow of oxygen can be regulated.
(4) According to the pressure reducing valve, the pressure reducing chamber is divided into the pressure reducing area and the low pressure area which are independent of each other through the pressure reducing valve membrane, and the pressure of oxygen in the low pressure area can be adjusted through the relation between the elasticity of the pressure reducing valve spring and the pressure of the oxygen in the low pressure area, so that the pressure of the oxygen input into the air guide hole is maintained at about 0.5Mpa, and the flow control valve can conveniently adjust the flow of the oxygen.
(5) The valve core of the pressure reducing valve is provided with the threaded column penetrating through the pressure reducing valve membrane, and the threaded column is provided with the screw cap, so that the pressure reducing valve spring is conveniently fixed on the pressure reducing valve membrane through the screw cap.
(6) The flow control valve seat is provided with the flow control valve rod capable of moving up and down along the flow control valve seat, and meanwhile, the bottom of the flow control valve rod is provided with the flow control valve core capable of penetrating through the air outlet hole and entering the air outlet hole, and the flow control valve core enters the air outlet hole to form a blocking effect on the air outlet hole, so that the output oxygen flow is regulated.
(7) The valve rod of the flow control valve is connected in the mounting hole of the valve seat of the flow control valve through threads, so that the valve core of the flow control valve can be conveniently adjusted up and down in a mode of rotating the valve rod of the flow control valve, and further the output oxygen flow is adjusted; the handle arranged on the valve rod of the flow control valve can conveniently rotate the valve rod of the flow control valve.
(8) The valve seat is also provided with the quick-charging connector, so that oxygen can be conveniently charged into the oxygen bottle when the oxygen amount in the oxygen bottle is insufficient for subsequent use.
(9) The air inlet end of the quick-filling connector is provided with the filter, so that oxygen filled in an oxygen bottle can be conveniently filtered; the air outlet end of the quick-filling connector is provided with a check valve core and a check valve spring, so that the oxygen in the oxygen bottle can be prevented from flowing backwards through the quick-filling connector.
(10) The oxygen bottle is provided with the shell, so that the oxygen bottle can be protected, and the attractive effect can be improved; the shock-absorbing filler arranged between the oxygen bottle and the shell is carried out to reduce the impact of the oxygen bottle, so that the oxygen bottle is safer to use.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of a partial structure of the present invention.
Fig. 3 is a schematic structural view of the pressure reducing valve of the present invention.
Fig. 4 is a schematic structural view of the pressure gauge according to the present invention.
Wherein, the reference numerals are as follows:
1-handle, 2-flow control valve seat, 3-flow control valve stem, 4-breathing joint, 5-flow control valve core, 6-hose, 7-hose joint, 8-hose clamp ring, 9-pressure relief valve spring, 10-plug, 11-pressure relief hole, 12-pressure relief valve membrane, 13-pressure relief valve core, 14-connector seal ring, 15-connector, 16-oxygen cylinder, 17-valve seat, 18-filter, 19-quick-fill joint, 20-cover plate, 21-check valve core, 22-check valve spring, 23-damping filler, 24-housing, 25-connector through hole, 26-vent hole, 27-vent hole, 28-pressure relief zone, 29-pressure relief valve clamp ring, 30-low pressure zone, 31-high pressure chamber, 32-flow control valve seal ring, 33-inlet hole, 34-screw post, 35-nut, 36-pressure outlet, 37-pressure gauge, 38-pressure gauge viewing window, 39-flow meter holder, 40-flow meter, 41-meter viewing window, 42-flow meter joint.
Detailed Description
The present invention will be described in further detail with reference to examples, but embodiments of the present invention are not limited thereto.
Examples
As shown in fig. 1 to 4, the portable respiration oxygen supply device of the invention comprises an oxygen bottle 16, wherein the oxygen bottle 16 is an aluminum alloy steel bottle, and the oxygen bottle 16 is used for containing oxygen. The oxygen cylinder 16 can be made with different volumes according to the use requirement, so as to be convenient for the user to use. In order to protect the oxygen bottle 16 and beautify the appearance, the oxygen bottle 16 is further provided with a shell 24 for wrapping the oxygen bottle 16, and the shell 24 is a plastic shell. For portability, a shock-absorbing filler 23 is further disposed between the oxygen bottle 16 and the housing 24, and the shock-absorbing filler 23 in this embodiment is foam. Meanwhile, the shell 24 is provided with an end cover 20, and the end cover 20 is arranged at the top opening of the shell 24, so that the oxygen bottle 16 and the damping filler 23 can be sealed in the shell 24.
In order to facilitate closing the oxygen bottle 16, a connector 15 is provided on the bottle mouth of the oxygen bottle 16, and a connector through hole 25 is provided on the connector 15, as shown in fig. 1 or 2. The oxygen bottle 16 is also provided with a valve seat 17 connected with the connector 15, and the valve seat 17 is positioned below the end cover 20. The inlet of the oxygen circulation channel is positioned above the bottle mouth of the oxygen bottle 16, the inlet of the oxygen circulation channel is communicated with the connector through hole 25, and the outlet of the oxygen circulation channel is provided with a breathing connector 4. Meanwhile, a pressure reducing valve and a flow control valve which are matched with the oxygen flow passage are arranged on the valve seat 17. When in use, high-pressure oxygen in the oxygen bottle 16 enters an oxygen flow passage on the valve seat 17 through a connector through hole 25 on the connector 15, the high-pressure oxygen of 25-30 Mpa released in the oxygen bottle 16 can be depressurized to low-pressure oxygen of about 0.5Mpa under the action of the pressure reducing valve, then the flow of oxygen output is regulated through the flow control valve, and a user can inhale the oxygen through the breathing connector 4.
Specifically, the oxygen flow passage includes a high pressure chamber 31 disposed at the bottom of the valve seat 17, a pressure reducing chamber communicating with the high pressure chamber 31 and cooperating with the pressure reducing valve, an air vent 27 communicating with the pressure reducing chamber, and an air outlet 26 communicating with the air vent 27. The high pressure chamber 31 is communicated with the connector through hole 2, the top of the connector 15 is connected to the inlet end of the high pressure chamber 31, as shown in fig. 1 or 2, and the inlet of the high pressure chamber 31 is the inlet of the oxygen flow channel. In order to prevent oxygen from leaking out through the fit gap, a connector sealing ring 14 is further provided on the connector 15, between the oxygen bottle 16 and the valve seat 17, as shown in fig. 1 or 2. The breathing joint 4 is arranged on the end cover 20, the breathing joint 4 is connected with the outlet end of the air outlet hole 26 through the hose 6, and the outlet of the air outlet hole 26 is the outlet of the oxygen circulation channel. For easy connection, a hose clamp ring 8 is provided at the outlet end of the air outlet 26, and the hose 6 is connected to the hose clamp ring 8, as shown in fig. 1 or 2.
In order to facilitate the observation of the flow of the output oxygen, a flow meter 40 is also provided between the hose 6 and the breathing connection 4. Specifically, the upper end of the flowmeter 40 is provided with a flowmeter fixing seat 39 matched with the breathing joint 4, and the lower end of the flowmeter is provided with a flowmeter joint 42 matched with the hose 6; the upper end of the flowmeter 40 is connected to the breathing joint 4 through the flowmeter fixing seat 39, and the lower end is connected to the hose 6 through the flowmeter joint 42. Meanwhile, an observation window is further arranged on the housing 24 at a position corresponding to the flowmeter 40, and a flowmeter observation window 41 which seals the observation window and is matched with the flowmeter 40 is arranged on the housing 24, as shown in fig. 1 or 2. The flow meter observation window 41 is made of transparent material, so that the display value on the flow meter 40 can be conveniently observed through the flow meter observation window 41.
The pressure reducing valve comprises a pressure reducing valve core 13, a pressure reducing valve membrane 12 is arranged on the pressure reducing valve core 13, and the edge of the pressure reducing valve membrane 12 is fixed on a pressure reducing chamber of a valve seat 17 through a pressure reducing valve compression ring 29. The pressure reducing valve membrane 12 divides the pressure reducing chamber into a pressure reducing region 28 and a low pressure region 30 which are independent from each other, as shown in fig. 2, the pressure reducing region 28 is located above the low pressure region 30, and the low pressure region 30 is respectively communicated with the high pressure chamber 31 and the air vent 27. The pressure reducing valve membrane 12 is further provided with a pressure reducing valve spring 9 positioned in the pressure reducing area 28, in order to facilitate the fixation of the pressure reducing valve spring 9 on the pressure reducing valve membrane 12, the pressure reducing valve core 13 is provided with a threaded column 34 penetrating through the pressure reducing valve membrane 12, the pressure reducing valve spring 9 is sleeved on the threaded column 34, and the threaded column 34 is provided with a nut 35 for fixing the pressure reducing valve spring 9 on the pressure reducing valve membrane 12, as shown in fig. 3. The pressure reducing valve membrane 12 is a sheet capable of elastically deforming, and the middle part of the pressure reducing valve membrane 12 can be upwards raised or downwards recessed under the action of the pressure of oxygen in the pressure reducing valve spring 9 and the low pressure area 30.
In use, the pre-set pressure of the relief valve spring 9 is set to 0.5Mpa, at which time the relief valve spool 13 is located between the low pressure region 30 and the high pressure chamber 31 and separates the low pressure region 30 and the high pressure chamber 31 into two mutually independent regions. Because the pressure reducing area 28 is a closed space, when the pressure reducing valve spring 9 deforms to generate spring force, the pressure in the pressure reducing area 28 will be changed along with the upward protrusion or downward depression of the pressure reducing valve diaphragm 12, so as to influence the pressure reducing valve spring 9 to adjust the oxygen pressure in the low pressure area 30, therefore, the pressure reducing area 28 is also provided with the pressure reducing hole 11 penetrating through the valve seat 17, so that the pressure reducing area 28 is always communicated with the atmosphere, and the stability of the output pressure of the pressure reducing valve can be ensured. When the oxygen pressure in the low pressure area 30 is greater than 0.5Mpa, the pressure reducing valve spring 9 is compressed, the middle part of the pressure reducing valve membrane 12 protrudes upwards under the action of the shrinkage force of the pressure reducing valve spring 9, and the pressure reducing valve core 13 is driven to move upwards, so that the oxygen pressure in the low pressure area 30 can be reduced. When the oxygen pressure in the low pressure area 30 is smaller than 0.5Mpa, the pressure reducing valve spring 9 is stretched, the middle part of the pressure reducing valve membrane 12 is downwards recessed under the action of the shrinkage force of the pressure reducing valve spring 9 and drives the pressure reducing valve core 13 to downwards move, the pressure reducing valve core 13 enters the high pressure chamber 31 and enables the high pressure chamber 31 to be communicated with the low pressure area 30, high pressure oxygen in the high pressure chamber 31 enters the low pressure area 30, and the oxygen pressure in the low pressure area 30 can be increased, so that the oxygen pressure in the input air guide hole 27 can be maintained at about 0.5Mpa under the action of the pressure reducing valve, and the flow control valve can be convenient for adjusting the oxygen flow.
The flow control valve is arranged on the air outlet hole 26 and can adjust the flow of oxygen flowing out of the air outlet hole 26, and the flow range of the oxygen regulated by the flow control valve is 0-2L/min. In particular, the flow control valve includes a flow control valve seat 2 disposed on a valve seat 17 and having its top extending through an end cap 20, as shown in fig. 1 or. The flow control valve seat 2 has a mounting hole communicating with the air outlet hole 26, which is located directly above the outlet of the air guide hole 27. The flow control valve seat 2 is provided with a flow control valve stem 3 which is matched with the mounting hole of the flow control valve seat 2 and can move up and down along the flow control valve seat 2, and the bottom of the flow control valve stem 3 is provided with a flow control valve core 5 which can pass through the air outlet hole 26 and enter the air guide hole 27. When the valve core 5 of the flow control valve is conical with large upper part and small lower part, the valve rod 3 of the flow control valve is downwards moved under the cooperation of the valve rod 3 of the flow control valve and the mounting hole of the valve seat 2 of the flow control valve, so that the valve core 5 of the flow control valve can downwards move and block the outlet of the air guide hole 27, and the flow of oxygen output can be regulated through the length of the valve core 5 of the flow control valve entering the air guide hole 27.
In the invention, the flow control valve rod 3 is connected in the mounting hole of the flow control valve seat 2 through threads, namely, an internal thread is arranged in the mounting hole of the flow control valve seat 2, meanwhile, an external thread matched with the internal thread is arranged on the flow control valve rod 3, and the flow control valve rod 3 is connected in the mounting hole of the flow control valve seat 2 after being matched with the internal thread in the mounting hole through the external thread. In order to facilitate the rotation of the flow control valve stem 3, so that the flow control valve core 5 can adjust the flow of the output oxygen through upward or downward movement, a handle 1 is further arranged on the flow control valve stem 3, the handle 1 is fixedly connected with the flow control valve stem 3, and the handle 1 can rotate.
In order to facilitate the oxygen filling of the oxygen bottle 16 when the oxygen in the oxygen bottle 16 is insufficient, a quick-fill connector 19 is further arranged on the valve seat 17, and the inlet end of the quick-fill connector 19 penetrates through the end cover 20 so as to facilitate the connection of external inflating equipment. The quick charge coupling 19 communicates with the high pressure chamber 31 through an air inlet hole 33 provided on the valve seat 17 as shown in fig. 1 or 2. For convenience of processing, the air inlet hole 33 and the air outlet hole 27 are both formed with processing openings on the valve seat 17, and for preventing oxygen from leaking out through the processing openings on the valve seat 17, plugs 10 for sealing the processing openings are provided in the processing openings on the valve seat 17, as shown in fig. 1 or 2. In order to prevent the reverse flow of oxygen when the oxygen bottle 16 is inflated, a check valve core 21 matched with the valve seat 17 is arranged at the air outlet end of the quick-charging connector 19, and a check valve spring 22 matched with the valve seat 17 is arranged on the check valve core 21, and the check valve spring 22 is in a compressed state. When the oxygen cylinder is inflated, the pressure of the inflated oxygen is larger than that of the check valve spring 22, the check valve spring 22 contracts, the check valve core 21 moves downwards, and the quick-inflation connector 19 is communicated with the air inlet hole 33, so that the oxygen cylinder 16 can be inflated with the oxygen. When the valve is not inflated, the compression force of the check valve spring 22 pushes the check valve core 21 upwards, so that the check valve core 21 seals the quick-fill connector 19, and oxygen can be prevented from flowing out through the quick-fill connector 19.
In order to facilitate the filtration of the oxygen charged in the oxygen cylinder 16, a filter 18 is also provided at the inlet end of said quick-fill coupling 19.
In order to facilitate the detection of the oxygen pressure, a pressure gauge 37 is also provided on the valve seat 17. Specifically, the valve seat 17 is provided with a pressure outlet hole 36 communicating with the high pressure chamber 31, and as shown in fig. 4, the pressure gauge 37 is disposed at the outlet of the pressure outlet hole 36. Since the high pressure chamber 31 is communicated with the oxygen in the oxygen bottle 16 through the connector through hole 25 on the connector 15, the oxygen pressure in the high pressure chamber 31 is the oxygen pressure in the oxygen bottle 16. When the oxygen pressure meter is used, the oxygen pressure in the oxygen bottle 16 can be observed through the pressure meter 37, when the display value of the pressure meter 37 is smaller than 0.5Mpa, the oxygen in the oxygen bottle 16 is insufficient, and oxygen can be filled into the oxygen bottle 16 through the quick filling connector 19.
In order to facilitate the observation of the pressure gauge 37, an observation window is also provided on the housing 24 at a position corresponding to the pressure gauge 37, and a pressure gauge observation window 38 is provided on the housing 24 to close the observation window and cooperate with the pressure gauge 37, as shown in fig. 4. The pressure gauge observation window 38 is also made of transparent materials, so that the display value on the pressure gauge 37 can be conveniently observed through the pressure gauge observation window 38.
As described above, the present invention can be advantageously practiced.
Claims (6)
1. A portable respiratory oxygen supply device, which is characterized in that: comprises an oxygen bottle (16), a valve seat (17) which is arranged on the oxygen bottle (16) and is provided with an oxygen circulation channel; the valve seat (17) is respectively provided with a pressure reducing valve and a flow control valve which are matched with an oxygen flow passage, the inlet of the oxygen flow passage is positioned above the bottle mouth of the oxygen bottle (16), and the outlet of the oxygen flow passage is provided with a breathing joint (4);
the oxygen flow passage comprises a high-pressure chamber (31) arranged at the bottom of the valve seat (17), a depressurization chamber which is communicated with the high-pressure chamber (31) and matched with the depressurization valve, an air guide hole (27) which is communicated with the depressurization chamber, and an air outlet hole (26) which is communicated with the air guide hole (27); the breathing joint (4) is connected to the air outlet hole (26) through a hose (6), and the flow control valve is arranged on the air outlet hole (26) and can adjust the flow of oxygen flowing out of the air outlet hole (26);
the flow control valve comprises a flow control valve seat (2) which is arranged on a valve seat (17) and is provided with a mounting hole communicated with an air outlet hole (26), a flow control valve stem (3) which is matched with the mounting hole of the flow control valve seat (2) and can move up and down along the flow control valve seat (2), and a flow control valve core (5) which is arranged at the bottom of the flow control valve stem (3) and can pass through the air outlet hole (26) to enter an air guide hole (27);
the pressure reducing valve comprises a pressure reducing valve core (13), a pressure reducing valve membrane (12) arranged on the pressure reducing valve core (13), and a pressure reducing valve spring (9) arranged on the pressure reducing valve membrane (12); the pressure reducing valve diaphragm (12) is fixed on a pressure reducing chamber of the valve seat (17) through a pressure reducing valve compression ring (29), the pressure reducing valve diaphragm (12) divides the pressure reducing chamber into a pressure reducing area (28) and a low pressure area (30) which are mutually independent, the pressure reducing valve spring (9) is positioned in the pressure reducing area (28), and the low pressure area (30) is respectively communicated with the high pressure chamber (31) and the air guide hole (27);
a threaded column (34) penetrating through the pressure reducing valve membrane is arranged on the pressure reducing valve core (13), the pressure reducing valve spring (9) is sleeved on the threaded column (34), and a nut (35) for fixing the pressure reducing valve spring (9) is arranged on the threaded column (34);
the outlet end of the air outlet hole (26) is provided with a hose clamp ring (8), and the hose (6) is connected to the hose clamp ring (8).
2. A portable respiratory ventilator according to claim 1, wherein: the bottle mouth of the oxygen bottle (16) is provided with a connector (15) connected with a valve seat (17), and the connector (15) is provided with a connector through hole (25) communicated with an oxygen circulation channel.
3. A portable respiratory ventilator according to claim 2, wherein: the flow control valve rod (3) is connected in the mounting hole of the flow control valve seat (2) through threads, and the flow control valve rod (3) is further provided with a handle (1).
4. A portable respiratory ventilator according to claim 3, wherein: the valve seat (17) is also provided with a quick-charging connector (19), and the quick-charging connector (19) is communicated with the high-pressure chamber (31) through an air inlet hole (33) arranged on the valve seat (17).
5. A portable respiratory ventilator as defined in claim 4, wherein: the air inlet end of the quick-filling connector (19) is provided with a filter (18), the air outlet end of the quick-filling connector (19) is provided with a check valve core (21) matched with the valve seat (17), and the check valve core (21) is provided with a check valve spring (22) matched with the valve seat (17).
6. A portable respiratory ventilator according to claim 4 or claim 5, wherein: the oxygen cylinder (16) is further provided with a shell (24) for wrapping the oxygen cylinder (16), the shell (24) is further provided with an end cover (20) connected with the breathing joint (4), the flow control valve seat (2) and the quick-charging joint (19) respectively, the valve seat (17) is arranged inside the shell (24) and located between the end cover (20) and the oxygen cylinder (16), and a damping filler (23) is further arranged between the oxygen cylinder (16) and the shell (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108568020A (en) * | 2018-05-03 | 2018-09-25 | 浙江氙科医疗器械有限公司 | The fixed mechanism of xenon bottle in portable xenon oxygen gas mixture suction apparatus |
| CN109050832A (en) * | 2018-09-15 | 2018-12-21 | 深圳斯达领科网络科技有限公司 | A kind of decompression breathing equipment and Portable diving breathing device |
| CN110201265B (en) * | 2019-07-10 | 2021-06-11 | 安徽医科大学 | Infusion device |
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