CN213252344U - Check valve with good check and sealing performance - Google Patents
Check valve with good check and sealing performance Download PDFInfo
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- CN213252344U CN213252344U CN202020765732.0U CN202020765732U CN213252344U CN 213252344 U CN213252344 U CN 213252344U CN 202020765732 U CN202020765732 U CN 202020765732U CN 213252344 U CN213252344 U CN 213252344U
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Abstract
The utility model discloses a check valve that non return leakproofness is good relates to medical instrument technical field, including last cavity and lower cavity, it is hollow cylinder with lower cavity to go up the cavity, go up the cavity cover establish the cavity of resorption external and with lower cavity fixed connection, it matches with cavity external diameter down to go up the cavity internal diameter, it establishes the gasket to go up between cavity and lower cavity, the gasket is cylindrical thin slice, the gasket external diameter is the same with cavity external diameter down, the fan-shaped air channel around gasket axis evenly distributed is seted up to the gasket outer edge, the external diameter of fan-shaped air channel matches with the internal diameter of going up cavity top venthole, the internal diameter of fan-shaped air channel matches with the internal diameter of cavity down. The utility model discloses be fit for littleer air current and pressure, the non return leakproofness is better, has solved old check valve under the state on non-perpendicular ground, and the existence is breathed in not smooth, and exhales sealedly not good, and because the resistance is too big when breathing in, ventilates also not good problem.
Description
Technical Field
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a check valve that non return leakproofness is good.
Background
Oxygen inhalation is widely used in the field of clinical medicine as a treatment means. The traditional check valve utilizes the gravity sealing of the gasket, the gasket is used in a non-vertical state, the sealing effect is not good, the gasket of the check valve can be opened only by relatively large suction force, and the check valve is not suitable for the field of respiration.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect that exists among the prior art, the utility model provides a check valve that non return leakproofness is good.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a check valve that non return leakproofness is good, includes cavity and lower cavity, it is hollow cylinder with lower cavity to go up the cavity, go up the cavity cover establish the cavity of resorption external and with lower cavity fixed connection, it matches with cavity external diameter down to go up the cavity internal diameter, it establishes the gasket to go up between cavity and lower cavity, the gasket is cylindrical thin slice, the gasket external diameter is the same with cavity external diameter down, the gasket is outer along seting up the fan-shaped air channel around gasket axis evenly distributed, the external diameter of fan-shaped air channel matches with the internal diameter of going up cavity top venthole, the internal diameter of fan-shaped air channel matches with the internal diameter of cavity down.
The sealing ring is arranged at the joint of the upper cavity and the bottom of the lower cavity.
The check valve with good check and sealing performance is characterized in that the upper cavity is 5-10 mm longer than the lower cavity.
The one-way valve with good non-return sealing performance is characterized in that the gasket is a 30-degree silica gel sheet.
The check valve with good check and sealing performance is characterized in that the top of the upper cavity and the bottom of the lower cavity are respectively connected with a gas pipe.
The beneficial effects of the utility model are that, the utility model discloses when the patient breathes in, the gasket can play the last cavity top of heavy-calibre, oxygen is through the venthole of fan-shaped air duct and last cavity to the patient oxygen suppliment, the gasket falls to little lower cavity top during expiration, part within the fan-shaped air duct internal diameter carries out the shutoff to the cavity down on the gasket, play the effect of non return, be fit for littleer air current and pressure, the non return leakproofness is better, current gaseous check valve has solved under the state on non-perpendicular ground old check valve, the existence is breathed in unsmooely, it is sealed not good to exhale, and when breathing in because the resistance is too big, the problem that also not good ventilates.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure, 1 is an upper cavity, 2 is a lower cavity, 3 is a gasket, 4 is a fan-shaped vent groove, 5 is an air outlet, 6 is a sealing ring, and 7 is an air conveying pipe.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following provides a further description of the present invention with reference to the accompanying drawings, and obviously, the following described drawings are only one embodiment of the present invention, and for those skilled in the art, other embodiments can be obtained according to the drawings and the embodiment without any creative work, and all belong to the protection scope of the present invention.
The utility model provides a check valve that non return leakproofness is good, includes cavity 1 and lower cavity 2, its characterized in that: go up cavity 1 and cavity 2 down and be hollow cylinder, go up cavity 1 cover establish under cavity 2 outside and with cavity 2 fixed connection down, go up cavity 1 internal diameter and cavity 2 external diameter matching down, it establishes gasket 3 to go up cavity 1 and cavity 2 down within a definite time, gasket 3 is cylindrical thin slice, 3 external diameters of gasket are the same with cavity 2 external diameter down, 3 outer edges of gasket are seted up around 3 axis evenly distributed's of gasket fan-shaped air channel 4, the external diameter of fan-shaped air channel 4 matches with the internal diameter of going up cavity 1 top venthole 5, the internal diameter of fan-shaped air channel 4 matches with the internal diameter of cavity 2 down.
In detail, sealing ring 6 is established with the junction of cavity 2 bottom down to last cavity 1, go up cavity 1 and be longer 5 ~ 10mm than cavity 2 down, gasket 3 adopts the silica gel piece of 30 degrees, go up cavity 1 top and 2 bottoms of cavity down and connect gas-supply pipe 7 respectively.
During the use, when the patient breathes in, gasket 3 can play the last cavity 1 top of heavy-calibre by the bullet, oxygen supplies oxygen to the patient through fan-shaped air channel 4 and last cavity 1's venthole 5, gasket 3 falls to little cavity 2 top down during expiration, the part within 4 internal diameters of fan-shaped air channel on gasket 3 carries out the shutoff to cavity down, play the effect of non return, be fit for littleer air current and pressure, the non return leakproofness is better, current gaseous check valve has solved old check valve under the state on non-perpendicular ground, the existence is breathed in unsmooely, breathe in sealed not good, and because the resistance is too big when breathing in, the problem of also not good ventilating.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (5)
1. The utility model provides a check valve that non return leakproofness is good, includes cavity (1) and lower cavity (2), its characterized in that: go up cavity (1) and lower cavity (2) and be hollow cylinder, go up cavity (1) cover establish under cavity (2) outside and with cavity (2) fixed connection down, go up cavity (1) internal diameter and cavity (2) external diameter matching down, go up cavity (1) and establish gasket (3) down between cavity (2), gasket (3) are cylindrical thin slice, gasket (3) external diameter is the same with cavity (2) external diameter down, gasket (3) are outer along offering fan-shaped air channel (4) around gasket (3) axis evenly distributed, the external diameter of fan-shaped air channel (4) matches with the internal diameter of last cavity (1) top venthole (5), the internal diameter of fan-shaped air channel (4) matches with the internal diameter of cavity (2) down.
2. The check valve with good check and sealing performance as claimed in claim 1, wherein a sealing ring (6) is arranged at the joint of the upper cavity (1) and the bottom of the lower cavity (2).
3. The check valve with good check and sealing performance as claimed in claim 1, wherein the upper cavity (1) is 5-10 mm longer than the lower cavity (2).
4. The check valve with good check and sealing performance as claimed in claim 1, wherein the gasket (3) is a 30-degree silicone sheet.
5. The check valve with good check and sealing performance as claimed in claim 1, wherein the top of the upper cavity (1) and the bottom of the lower cavity (2) are respectively connected with an air delivery pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020765732.0U CN213252344U (en) | 2020-05-11 | 2020-05-11 | Check valve with good check and sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020765732.0U CN213252344U (en) | 2020-05-11 | 2020-05-11 | Check valve with good check and sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213252344U true CN213252344U (en) | 2021-05-25 |
Family
ID=75935786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020765732.0U Active CN213252344U (en) | 2020-05-11 | 2020-05-11 | Check valve with good check and sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213252344U (en) |
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2020
- 2020-05-11 CN CN202020765732.0U patent/CN213252344U/en active Active
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