CN211675761U - Oxygen supply device for oxygen bag - Google Patents
Oxygen supply device for oxygen bag Download PDFInfo
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- CN211675761U CN211675761U CN202020145444.5U CN202020145444U CN211675761U CN 211675761 U CN211675761 U CN 211675761U CN 202020145444 U CN202020145444 U CN 202020145444U CN 211675761 U CN211675761 U CN 211675761U
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- inner cylinder
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Abstract
The utility model is used for supplying oxygen in an oxygen bag to a patient, in particular to an oxygen supply device for the oxygen bag, which comprises a vacuum pump and a humidifying mechanism; the air inlet of the vacuum pump is connected with the air outlet pipe of the oxygen bag; the humidifying mechanism comprises an outer shell and an anti-backflow inner cylinder; an air outlet of the vacuum pump is communicated with an inlet end of an air inlet structural member at the top of the outer shell through a connecting pipe, and a flow control valve is installed on the connecting pipe; the upper part of the outer shell is provided with an oxygen outlet; the backflow-preventing inner cylinder is positioned in the outer shell, through holes are formed in the upper end and the lower end of the backflow-preventing inner cylinder, and the backflow-preventing inner cylinder is fixedly connected with the outlet end of the air inlet structural member through the through hole in the upper end of the backflow-preventing inner cylinder and keeps sealed; the outer shell is filled with water, and the water level of the outer shell is higher than the position of the through hole at the lower end of the backflow-preventing inner cylinder and lower than the positions of the oxygen outlet and the outlet end of the air inlet structural member. This apparatus for oxygen supply is rational in infrastructure, easy and simple to handle, can make the oxygen suppliment even and can exhaust the oxygen in the oxygen bag through the vacuum pump, has the humidification function concurrently simultaneously, has improved the comfort level of patient's oxygen uptake.
Description
Technical Field
The utility model relates to an oxygen supply device for oxygen bag can supply the oxygen in the oxygen bag to the patient and the oxygen suppliment is even.
Background
The common oxygen bag (also called oxygen pillow) for family is a specially made rectangular rubber pillow bag, on the oxygen bag an air outlet tube (usually rubber tube) is set, on the air outlet tube a flow-stopping clip commonly used in clinical transfusion can be mounted so as to implement on-off of oxygen, and on some oxygen bags a flow regulator similar to that on the intravenous transfusion device can be used for replacing flow-stopping clip, and said invented oxygen pillow has the functions of on-off oxygen and regulating oxygen flow rate. Because the oxygen bag is convenient to use and simple to operate, and has the advantage of being convenient to carry, the oxygen bag is widely applied to household oxygen therapy. However, in the actual use process, the oxygen bag has the following defects:
1. the oxygen bag internal pressure is great usually in the oxygen suppliment initial stage, therefore the oxygen suppliment is comparatively sufficient, but along with the output of oxygen, oxygen bag internal pressure reduces gradually, and the output volume of oxygen can reduce gradually, need press the oxygen bag hard (put under the user's head with the hand pressure or with the oxygen bag when the pillow, make oxygen discharge with user's head weight) usually can discharge oxygen, and later stage operation is more laborious, and the oxygen suppliment is inhomogeneous moreover, and oxygen is difficult to discharge completely simultaneously, causes the waste of oxygen.
2. The oxygen in the oxygen bag is dry, and the respiratory mucosa is easily damaged after a user inhales the dry oxygen.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the oxygen supply device for the oxygen bag overcomes the defects in the prior art, is convenient to operate, supplies oxygen uniformly, can exhaust the oxygen in the oxygen bag, has a humidifying function and improves oxygen inhalation comfort.
The oxygen supply device for the oxygen bag comprises a vacuum pump and a humidifying mechanism; the air inlet of the vacuum pump is connected with the air outlet pipe of the oxygen bag; the humidifying mechanism comprises an outer shell and an anti-backflow inner cylinder; the top of the outer shell is provided with an air inlet structural member internally provided with an air inlet channel, an air outlet of the vacuum pump is communicated with an inlet end of the air inlet structural member through a connecting pipe, and the connecting pipe is provided with a flow control valve; the upper part of the outer shell is provided with an oxygen outlet; the backflow preventing inner cylinder is positioned in the outer shell, through holes are formed in the upper end and the lower end of the backflow preventing inner cylinder, the backflow preventing inner cylinder is fixedly connected with the outlet end of the air inlet structural member through the through hole in the upper end of the backflow preventing inner cylinder, the connection position of the backflow preventing inner cylinder and the air inlet structural member is kept sealed, and a space is formed between the bottom of the backflow preventing inner cylinder and the inner bottom; the outer shell is filled with water, and the water level of the outer shell is higher than the position of the through hole at the lower end of the backflow-preventing inner cylinder and lower than the positions of the oxygen outlet and the outlet end of the air inlet structural member.
The utility model discloses before using, need make following preparation work in advance:
1. connecting an air outlet pipe of the oxygen bag to an air inlet of the vacuum pump, and simultaneously connecting a pipeline on the oxygen mask to an oxygen outlet of the outer shell;
2. the outer shell is filled with a proper amount of water (the water level is higher than the position of the through hole at the lower end of the backflow-preventing inner cylinder and is lower than the positions of the oxygen outlet and the outlet end of the air inlet structural part);
3. and adjusting the flow control valve to control the flow rate to be proper.
After the preparation work is done, the oxygen mask is placed on the face and the closed mouth and nose of a user, the oxygen mask is fixed on the head of the user by using a fixing piece, and then the flow stopping clamp on the air outlet pipe of the oxygen bag is opened, the vacuum pump is started, and oxygen inhalation operation is carried out.
Can realize even oxygen suppliment through the vacuum pump, ensure good oxygen therapy effect, the foremost is, can take out oxygen in the oxygen bag totally through the vacuum pump, makes oxygen all obtain utilizing, can not cause the waste of oxygen, and whole operation is very convenient moreover.
Simultaneously, because of the existence of humidification mechanism, can carry out the humidification to dry oxygen, humidification mechanism's theory of operation as follows: because the lower end through hole of the backflow preventing inner cylinder is positioned below the liquid level in the outer shell, and the backflow preventing inner cylinder is hermetically connected with the outlet end of the air inlet structural part through the upper end through hole of the backflow preventing inner cylinder, oxygen entering the humidifying mechanism can directly enter water through the backflow preventing inner cylinder, then escapes from the water and is supplied to a user through the oxygen outlet, and thus the oxygen entering the nasal cavity of the user can feel comfortable due to humidification of water, and the phenomenon that the respiratory mucosa is damaged due to inhalation of dry oxygen by the user is avoided.
When the oxygen inhalation operation needs to be interrupted, only the vacuum pump needs to be closed, and the flow stopping clamp on the oxygen bag air outlet pipe needs to be closed, and due to the unique design of the anti-backflow inner cylinder, water in the humidifying mechanism cannot flow back to the connecting pipe, so that the normal and reliable operation of the whole oxygen supply device is ensured.
Preferably, steps are turned at the upper end and the lower end of the air inlet structural part to form a structure with a convex middle part; the top of the outer shell is provided with a hole, and the upper part of the air inlet structural part is assembled in the hole in an interference manner; a first sealing ring is arranged at the lower end step; the lower part of the air inlet structural part is lathed with external threads, correspondingly, internal threads are lathed in the through hole at the upper end of the backflow-preventing inner cylinder, and the backflow-preventing inner cylinder is in threaded connection with the external threads at the lower part of the air inlet structural part through the internal threads. Through the structural design, the sealing effect that the backflow preventing inner cylinder is connected with the air inlet structural part can be guaranteed.
Preferably, the outer casing comprises an upper cover and a lower cylinder which are connected by screw threads. Further preferably, a second sealing ring is installed in the upper cover, the second sealing ring is located at the root of the thread in the upper cover, a sealing ring groove is formed in the upper cover corresponding to the second sealing ring, and the second sealing ring is installed in the sealing ring groove, so that the sealing performance of connection between the upper cover and the lower barrel is ensured.
Preferably, a reducing joint is arranged at an oxygen outlet at the upper part of the outer shell; from inside to outside, the outside diameter size of reducing joint reduces gradually. In actual operation, the pipeline on the oxygen mask is forcibly connected to the reducer union, so that the firmness of connection between the pipeline and the reducer union is ensured, and the sealing performance is also ensured.
The oxygen supply device for the oxygen bag of the utility model can be additionally provided with a detachable casing; the vacuum pump is arranged in the shell, and a control switch of the vacuum pump is arranged on the shell; a bracket is arranged on the outer wall of the shell, and the humidifying mechanism is arranged on the bracket; the outer end of the connecting pipe penetrates out of the machine shell and is connected with the inlet end of an air inlet structural part of the humidifying mechanism outside the machine shell; the enclosure is provided with a butt joint piece for butt joint with the air outlet pipe of the oxygen bag, and one end of the butt joint piece, which is positioned in the enclosure, is connected with the air inlet of the vacuum pump through a middle connecting pipe. Through addding the casing, set up vacuum pump and partial pipeline in the casing, pass through the bracket with humidification mechanism simultaneously and install on the casing, make the oxygen supply apparatus for the oxygen bag becomes the complete machine structure, both is convenient for transport and sale, has improved the security when using again, and the appearance is more pleasing to the eye moreover. Wherein: the shell can adopt a buckling structure, and the assembly is realized through the buckling of the upper shell and the lower shell; the bracket can be made of plastic materials with better plasticity such as polyvinyl chloride, polypropylene, ABS and the like, and the lower part of the humidifying mechanism is clamped into the bracket from top to bottom, so that the humidifying mechanism and the shell can be relatively fixed.
In addition, the vacuum pump in the utility model can adopt a commercial direct current micro electric diaphragm 12V vacuum pump; the flow control valve can adopt a binary ball valve; the position of the lower end through hole of the anti-backflow inner cylinder can be designed into an outward-protruding structure, the lower end through hole penetrates through the outward-protruding structure (the lower end of the anti-backflow inner cylinder is provided with an exhaust pipe, the lower end through hole is communicated with an inner pipeline of the exhaust pipe), a distance exists between the bottom of the outward-protruding structure and the inner bottom of the outer shell, the outward-protruding structure is ensured to be located below the water surface when the humidifier is used, and therefore the humidifier can realize oxygen humidification only by adding a small amount of water into the outer shell.
Compared with the prior art, the utility model beneficial effect who has is:
the utility model has reasonable structure design and simple operation, can realize uniform oxygen supply through the vacuum pump, ensures good oxygen therapy effect, and mainly can completely extract oxygen in the oxygen bag through the vacuum pump, so that the oxygen is completely utilized and the waste of the oxygen is not caused; due to the existence of the humidifying mechanism, the dry oxygen can be humidified, so that a user feels comfortable, and the respiratory mucosa is prevented from being damaged by inhaling the dry oxygen; when the oxygen inhalation operation needs to be interrupted, the water in the humidifying mechanism cannot flow back to the connecting pipe due to the unique design of the backflow preventing inner cylinder, so that the normal and reliable operation of the whole oxygen supply device is ensured.
Drawings
FIG. 1 is a perspective view of a first embodiment;
FIG. 2 is a front view of the first embodiment;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic structural view of the upper cover;
FIG. 5 is a front view of the upper cover;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
FIG. 7 is a perspective view of the inner barrel for preventing backflow;
FIG. 8 is a bottom view of the inner anti-backflow barrel;
fig. 9 is a schematic structural view of the second embodiment.
In the figure: 1. a lower housing; 2. an upper housing; 3. a connecting pipe; 4. an air intake structure; 5. an upper cover; 6. a reducer union; 7. a bracket; 8. a lower cylinder body; 9. a docking member; 10. an anti-backflow inner cylinder; 11. a lower end through hole; 12. a middle connecting pipe; 13. an air inlet; 14. an air outlet; 15. a vacuum pump; 16. a flow control valve; 17. a second seal ring; 18. a first seal ring; 19. a seal ring groove; 20. an outlet end; 21. a structure with a convex middle part; 22. an inlet end; 23. an upper end through hole; 24. a convex structure.
Detailed Description
Embodiments of the present invention are further described below with reference to the accompanying drawings:
the first embodiment is as follows:
as shown in fig. 1 to 8, the oxygen supply device for oxygen bags includes a detachable casing, a vacuum pump 15, and a humidifying mechanism.
The vacuum pump 15 is arranged in the casing, a control switch of the vacuum pump is arranged on the casing, the vacuum pump 15 is provided with an air inlet 13 and an air outlet 14, and in the embodiment, the vacuum pump 15 adopts a commercially available direct current micro electric diaphragm 12V vacuum pump; an air outlet 14 of the vacuum pump 15 is connected to a connecting pipe 3, an outer end of the connecting pipe 3 penetrates through the casing to be connected to the humidifying mechanism, and a flow control valve 16 is installed on the connecting pipe 3, in this embodiment, the flow control valve 16 is a binary ball valve and is located in the casing.
The outer wall of the casing is provided with a bracket 7, the humidifying mechanism is arranged on the bracket 7, in the embodiment, the bracket 7 is made of polyvinyl chloride plastic material, and the lower part (namely the lower cylinder 8) of the humidifying mechanism is clamped into the bracket 7 from top to bottom to realize the relative fixation of the humidifying mechanism and the casing; the side wall of the machine shell is provided with a butt joint piece 9, one end of the butt joint piece 9 positioned outside the machine shell is connected with an air outlet pipe of the oxygen bag, and one end of the butt joint piece 9 positioned inside the machine shell is connected with an air inlet 13 of a vacuum pump 15 through a middle connecting pipe 12; the casing in this embodiment includes upper casing 2 and lower casing 1, and the two lock each other and realize the assembly.
The humidifying mechanism comprises an outer shell and a backflow preventing inner barrel 10. The top of the outer shell is provided with an air inlet structural part 4 internally provided with an air inlet channel, and the outer end of a connecting pipe 3 connected with an air outlet 14 of a vacuum pump 15 is connected with an inlet end 22 of the air inlet structural part 4 of the humidifying mechanism outside the machine shell (namely the upper part of the air inlet structural part 4); the upper part of the outer shell is provided with an oxygen outlet; the backflow preventing inner cylinder 10 is positioned in the outer shell, through holes are formed in the upper end and the lower end of the backflow preventing inner cylinder 10, the backflow preventing inner cylinder 10 is fixedly connected with the outlet end 20 of the air inlet structural part 4 (namely the lower part of the air inlet structural part 4) through the through hole 23 in the upper end of the backflow preventing inner cylinder, and the connection position of the backflow preventing inner cylinder and the outlet end is kept sealed; a space is reserved between the bottom of the backflow-preventing inner cylinder 10 and the inner bottom of the outer shell; the outer shell is filled with water, and the water level of the water is higher than the position of the through hole 11 at the lower end of the backflow-preventing inner cylinder 10 and lower than the position of the oxygen outlet and the outlet end 20 of the air inlet structural member 4 (i.e. the lower part of the air inlet structural member 4).
In this embodiment:
the outer shell comprises an upper cover 5 and a lower cylinder 8 positioned below the upper cover 5, and the upper cover 5 and the lower cylinder 8 are connected through threads; the upper cover 5 is internally provided with a second sealing ring 17, the second sealing ring 17 is positioned at the root part of the thread in the upper cover 5, a sealing ring groove 19 is arranged in the upper cover 5 corresponding to the second sealing ring 17, and the second sealing ring 17 is arranged in the sealing ring groove 19 to ensure the connection tightness of the upper cover 5 and the lower cylinder 8.
An oxygen outlet on the outer shell is arranged on the upper cover 5, and a reducing joint 6 is arranged at the oxygen outlet; the outside diameter of the reducer union 6 is gradually reduced from the inside to the outside. In actual operation, the pipeline on the oxygen mask is forcibly connected to the reducer union 6, so that the connection firmness of the pipeline and the reducer union 6 is ensured, and the sealing performance is also ensured.
Steps are turned at the upper end and the lower end of the air inlet structural part 4 to form a structure 21 with a convex middle part; the top of the outer shell is provided with a hole, and the upper part of the air inlet structural part 4 is assembled in the hole in an interference manner; a first sealing ring 18 is arranged at the lower end step; the lower part of the air inlet structural part 4 is lathed with external threads, correspondingly, internal threads are lathed in the through hole 23 at the upper end of the backflow preventing inner cylinder 10, and the backflow preventing inner cylinder 10 is in threaded connection with the external threads at the lower part of the air inlet structural part 4 through the internal threads. The sealing effect that the backflow preventing inner cylinder 10 is connected with the air inlet structural part 4 can be guaranteed through the structural design.
Before the oxygen supply device is used, the following preparation work needs to be done in advance:
1. connecting an air outlet pipe of an oxygen bag to an air inlet 13 of a vacuum pump 15, and simultaneously connecting a pipeline on an oxygen mask to an oxygen outlet of the outer shell;
2. the outer shell is filled with a proper amount of water (the water level is higher than the position of the through hole 11 at the lower end of the backflow-preventing inner cylinder 10 and is lower than the position of the oxygen outlet and the outlet end 20 of the air inlet structural part 4);
3. the flow control valve 16 is adjusted to control the appropriate amount of gas flow.
After the preparation work is done, the oxygen mask is placed on the face and the closed mouth and nose of a user, the oxygen mask is fixed on the head of the user by using a fixing piece, then the flow stopping clamp on the air outlet pipe of the oxygen bag is opened, the vacuum pump 15 is started, and oxygen inhalation operation is carried out.
Can realize even oxygen suppliment through vacuum pump 15, ensure good oxygen therapy effect, above all, can take out the oxygen in the oxygen bag entirely through vacuum pump 15, make oxygen all obtain utilizing, can not cause the waste of oxygen, whole operation is very convenient moreover.
Simultaneously, because of the existence of humidification mechanism, can carry out the humidification to dry oxygen, humidification mechanism's theory of operation as follows: because the lower end through hole 11 of the backflow prevention inner cylinder 10 is positioned below the liquid level in the outer shell, and meanwhile, the backflow prevention inner cylinder 10 is hermetically connected with the outlet end 20 of the air inlet structural component 4 through the upper end through hole 23 of the backflow prevention inner cylinder 10, oxygen entering the humidification mechanism can directly enter water through the backflow prevention inner cylinder 10, then escapes from the water and is supplied to a user through an oxygen outlet, and thus the oxygen entering the nasal cavity of the user can feel comfortable due to humidification of water, and the phenomenon that the respiratory mucosa is damaged due to inhalation of dry oxygen by the user is avoided.
When the oxygen inhalation operation needs to be interrupted, only the vacuum pump 15 needs to be closed, and the flow stopping clamp on the oxygen bag air outlet pipe needs to be closed, and due to the unique design of the backflow preventing inner cylinder 10, water in the humidifying mechanism cannot flow back to the connecting pipe 3, so that the normal and reliable operation of the whole oxygen supply device is ensured.
In addition, in the embodiment, the casing is arranged, the vacuum pump 15 and the like are arranged in the casing, and the humidifying mechanism is arranged on the casing through the bracket 7, so that the oxygen supply device is of a whole structure, the transportation and the sale are convenient, the safety in use is improved, and the appearance is more attractive.
Example two:
as shown in fig. 9, the oxygen supply device for oxygen bag has the same structure as the first embodiment, except that in the first embodiment, the position of the lower end through hole 11 of the anti-backflow inner cylinder 10 is designed to be the convex structure 24, the lower end through hole 11 penetrates through the convex structure (corresponding to the exhaust pipe arranged at the lower end of the anti-backflow inner cylinder 10, the lower end through hole is communicated with the inner pipeline of the exhaust pipe), there is a gap between the bottom of the convex structure 24 and the inner bottom of the outer shell, and it is only necessary to ensure that the convex structure 24 is located below the water surface when in use. Compared with the first embodiment, in the second embodiment, the humidification of the oxygen can be realized only by adding a small amount of water into the outer shell of the humidification mechanism.
Claims (10)
1. The utility model provides an oxygen supply apparatus for oxygen bag which characterized in that: comprises a vacuum pump (15) and a humidifying mechanism;
an air inlet (13) of the vacuum pump (15) is connected with an air outlet pipe of the oxygen bag;
the humidifying mechanism comprises an outer shell and a backflow preventing inner cylinder (10); an air inlet structural part (4) with an air inlet channel arranged inside is installed at the top of the outer shell, an air outlet (14) of a vacuum pump (15) is communicated with an inlet end (22) of the air inlet structural part (4) through a connecting pipe (3), and a flow control valve (16) is installed on the connecting pipe (3); the upper part of the outer shell is provided with an oxygen outlet; the backflow preventing inner cylinder (10) is positioned in the outer shell, through holes are formed in the upper end and the lower end of the backflow preventing inner cylinder, the backflow preventing inner cylinder (10) is fixedly connected with the outlet end (20) of the air inlet structural component (4) through the through hole (23) in the upper end of the backflow preventing inner cylinder, the connection position of the backflow preventing inner cylinder and the outlet end keeps sealed, and a space exists between the bottom of the backflow preventing inner cylinder (10) and the inner bottom of the outer;
the outer shell is filled with water, and the water level of the water is higher than the position of the lower end through hole (11) of the backflow preventing inner cylinder (10) and lower than the position of the outlet end (20) of the oxygen outlet and the air inlet structural part (4).
2. The oxygen supply device for an oxygen bag according to claim 1, wherein: steps are turned at the upper end and the lower end of the air inlet structural part (4) to form a structure (21) with a convex middle part; the top of the outer shell is provided with a hole, and the upper part of the air inlet structural part (4) is assembled in the hole in an interference manner; a first sealing ring (18) is arranged at the lower end step; the lower part of the air inlet structural part (4) is lathed with external threads, correspondingly, internal threads are lathed in the through hole (23) at the upper end of the backflow preventing inner cylinder (10), and the backflow preventing inner cylinder (10) is in threaded connection with the external threads at the lower part of the air inlet structural part (4) through the internal threads.
3. The oxygen supply device for an oxygen bag according to claim 1 or 2, wherein: the outer shell comprises an upper cover (5) and a lower cylinder body (8) which are connected through threads.
4. The oxygen supply device for an oxygen bag according to claim 3, wherein: a second sealing ring (17) is installed in the upper cover (5), the second sealing ring (17) is located at the root of the thread in the upper cover (5), and a sealing ring groove (19) corresponding to the second sealing ring (17) is formed in the upper cover (5).
5. The oxygen supply device for an oxygen bag according to claim 1, wherein: a reducing joint (6) is arranged at an oxygen outlet at the upper part of the outer shell; the outside diameter of the reducing joint (6) is gradually reduced from inside to outside.
6. The oxygen supply device for an oxygen bag according to claim 1, wherein: the vacuum pump (15) adopts a direct-current micro electric diaphragm 12V vacuum pump.
7. The oxygen supply device for an oxygen bag according to claim 1, wherein: the flow control valve (16) adopts a two-half ball valve.
8. The oxygen supply device for an oxygen bag according to any one of claims 1 to 2 or 4 to 7, wherein: the device also comprises a detachable machine shell; the vacuum pump (15) is arranged in the machine shell, and a control switch of the vacuum pump is arranged on the machine shell; a bracket (7) is arranged on the outer wall of the shell, and the humidifying mechanism is arranged on the bracket (7); the outer end of the connecting pipe (3) penetrates out of the machine shell and is connected with an inlet end (22) of an air inlet structural part (4) of a humidifying mechanism outside the machine shell; the machine shell is provided with a butt joint piece (9) for butt joint with an air outlet pipe of the oxygen bag, and one end of the butt joint piece (9) positioned in the machine shell is connected with an air inlet (13) of a vacuum pump (15) through a middle connecting pipe (12).
9. The oxygen supply device for an oxygen bag according to claim 8, wherein: the casing comprises an upper casing (2) and a lower casing (1) which are buckled with each other.
10. The oxygen supply device for an oxygen bag according to claim 4, wherein: the device also comprises a detachable machine shell; the vacuum pump (15) is arranged in the machine shell, and a control switch of the vacuum pump is arranged on the machine shell; a bracket (7) is arranged on the outer wall of the shell, and the humidifying mechanism is arranged on the bracket (7); the outer end of the connecting pipe (3) penetrates out of the machine shell and is connected with an inlet end (22) of an air inlet structural part (4) of a humidifying mechanism outside the machine shell; the machine shell is provided with a butt joint piece (9) for butt joint with an air outlet pipe of the oxygen bag, and one end of the butt joint piece (9) positioned in the machine shell is connected with an air inlet (13) of a vacuum pump (15) through a middle connecting pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020145444.5U CN211675761U (en) | 2020-01-22 | 2020-01-22 | Oxygen supply device for oxygen bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020145444.5U CN211675761U (en) | 2020-01-22 | 2020-01-22 | Oxygen supply device for oxygen bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211675761U true CN211675761U (en) | 2020-10-16 |
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ID=72774458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020145444.5U Expired - Fee Related CN211675761U (en) | 2020-01-22 | 2020-01-22 | Oxygen supply device for oxygen bag |
Country Status (1)
| Country | Link |
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| CN (1) | CN211675761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115671588A (en) * | 2022-09-22 | 2023-02-03 | 湖北贵族真空科技股份有限公司 | Oxygen supply device capable of preventing liquid leakage during pouring |
-
2020
- 2020-01-22 CN CN202020145444.5U patent/CN211675761U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115671588A (en) * | 2022-09-22 | 2023-02-03 | 湖北贵族真空科技股份有限公司 | Oxygen supply device capable of preventing liquid leakage during pouring |
| CN115671588B (en) * | 2022-09-22 | 2023-10-20 | 湖北贵族真空科技股份有限公司 | Pouring leakage-proof liquid oxygen supply device |
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Granted publication date: 20201016 Termination date: 20220122 |