CN219888735U - Oxygen cabin pressure relief device - Google Patents
Oxygen cabin pressure relief device Download PDFInfo
- Publication number
- CN219888735U CN219888735U CN202321023211.8U CN202321023211U CN219888735U CN 219888735 U CN219888735 U CN 219888735U CN 202321023211 U CN202321023211 U CN 202321023211U CN 219888735 U CN219888735 U CN 219888735U
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- China
- Prior art keywords
- pressure relief
- valve
- rotating shaft
- opening
- opening valve
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- 239000001301 oxygen Substances 0.000 title claims abstract description 39
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 39
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 52
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model discloses an oxygen cabin pressure relief device, which is characterized by comprising: the valve body is provided with two pressure relief openings for communicating the inside and the outside of the oxygen cabin; the inner opening valve and the outer opening valve are respectively arranged at the two pressure relief openings through connecting shafts so as to open and close the pressure relief openings; the valve opening and closing assembly is provided with a rotating shaft, a worm gear transmission group, a transmission shaft and a gear transmission group; the rotating shaft is arranged on the valve body, and two ends of the rotating shaft are respectively positioned at the inner side and the outer side of the valve body and are connected with rotating wheels; the transmission shaft is arranged in the valve body, one end facing the rotating shaft is connected with the rotating shaft through the worm gear transmission group, and one end facing away from the rotating shaft is connected with the connecting shaft of the inward-opening valve and the outward-opening valve through the gear transmission group so as to drive the inward-opening valve and the outward-opening valve to reversely rotate, so that the inward-opening valve and the outward-opening valve are synchronously opened or closed. The utility model can achieve the pressure relief effect quickly and labor-saving.
Description
Technical Field
The utility model relates to the field of medical use, in particular to an oxygen cabin pressure relief device.
Background
The medical oxygen cabin is a medical manned pressure container which takes compressed air or medical oxygen as a pressurizing medium, and a patient is treated by sucking oxygen under the high-pressure environment in the cabin. There are often incidents during treatment that require the delivery of certain rescue, surveillance and treatment supplies from outside the cabin through a delivery cartridge or the delivery of cabin contents to outside the cabin.
In the oxygen cabin structure, a pressure relief structure is arranged on the oxygen cabin so as to perform pressure relief operation on the inner part of the oxygen cabin under emergency. Among the prior art, the pressure release structure mainly includes the pressure release mouth that is located on the oxygen cabin lateral wall, the valve of interior open cooperation on the pressure release mouth and locks the valve on the pressure release mouth. In the structure, the air pressure in the oxygen cabin is larger than the air pressure outside the oxygen cabin, so that the valve is of an inward opening structure, and is difficult to open, namely, a large force is needed to open the valve; secondly, the pressure relief opening is a single-opening structure, the pressure relief is slower, and the problem that the high pressure in the oxygen cabin cannot be removed in time exists.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the pressure relief device for the oxygen cabin, which can achieve the pressure relief effect quickly and laborsaving.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
an oxygen cabin pressure relief device, comprising:
the valve body is provided with two pressure relief openings for communicating the inside and the outside of the oxygen cabin;
the inner opening valve and the outer opening valve are respectively arranged at the two pressure relief openings through connecting shafts so as to open and close the pressure relief openings;
the valve opening and closing assembly is provided with a rotating shaft, a worm gear transmission group, a transmission shaft and a gear transmission group;
the rotating shaft is arranged on the valve body, and two ends of the rotating shaft are respectively positioned at the inner side and the outer side of the valve body and are connected with rotating wheels;
the transmission shaft is arranged in the valve body, one end facing the rotating shaft is connected with the rotating shaft through the worm gear transmission group, and one end facing away from the rotating shaft is connected with the connecting shaft of the inward-opening valve and the outward-opening valve through the gear transmission group so as to drive the inward-opening valve and the outward-opening valve to reversely rotate, so that the inward-opening valve and the outward-opening valve are synchronously opened or closed.
Preferably, the rotating shaft is perpendicular to the transmission shaft, and the worm and gear transmission group comprises a worm connected to the rotating shaft and a worm wheel connected to the transmission shaft.
Preferably, the gear transmission group comprises a transmission gear, a first driven gear and a second driven gear which are positioned at two sides of the transmission gear and meshed with the transmission gear at the same time;
the first driven gear and the second driven gear are respectively connected to the two connecting shafts, and the transmission gear is connected to the transmission shaft.
Preferably, a baffle is arranged on the outer side wall of the valve body, and an air outlet with a downward opening is arranged on the baffle.
Preferably, the outer side wall of the valve body is provided with an assembly groove for clamping to the side wall of the oxygen chamber.
The utility model has the advantages that:
1. the worm gear transmission group can play a self-locking function, the rotating shaft cannot rotate under the condition that no external force is applied, and the valve cannot be opened;
2. when the rotating shaft drives the transmission shaft to rotate through the worm and gear transmission group, the differential speed ratio of the worm and gear can play a role in saving power so as to drive the transmission shaft to rotate;
3. the internal opening valve and the external opening valve are different in pressure contact area with the oxygen cabin, so that the proper opening resistance can be adjusted by designing the area difference of the two valves, and the two valves can be opened simultaneously through the rotating shaft.
Drawings
FIG. 1 is a schematic view of the internal structure of an oxygen cabin pressure relief device according to the present embodiment;
FIG. 2 is a cross-sectional view of the oxygen cabin pressure relief device provided in this embodiment;
fig. 3 is a schematic diagram of an oxygen cabin pressure relief device according to the present embodiment.
Detailed Description
The oxygen chamber pressure relief device of the present utility model will be further described with reference to fig. 1-3.
The oxygen cabin pressure relief device is characterized by comprising a valve body 1, an inward opening valve 2, an outward opening valve 5 and a valve opening and closing assembly 3.
The outer side wall of the valve body 1 is provided with an assembling groove 14, and is assembled in an installing port of the side wall of the oxygen cabin through the assembling groove 14; the valve body 1 is provided with two pressure relief openings 13 which are vertically distributed and are used for communicating the inside and the outside of the oxygen cabin, and the pressure relief openings 13 are provided with sealing rubber rings 11 for tightly closing the pressure relief openings 13 by the valve.
The inner opening valve 2 and the outer opening valve 5 are respectively arranged at the two pressure relief openings 13 through the connecting shaft 4 so as to open and close the pressure relief openings 13. Specifically, the whole internal opening valve 2 is positioned at the inner side of the valve body 1, namely at one side of the valve body corresponding to the interior of the oxygen cabin, the lower side of the internal opening valve is fixed with the connecting shaft 4 in a welding mode or a bolt connection mode, the connecting shaft 4 is arranged on the mounting plate 12 in the valve body 1 through the bearing seat 41, and the upper side of the internal opening valve 2 is driven to rotate when the connecting shaft 4 rotates so as to open and close the pressure relief opening 13 positioned at the upper side; the outward opening valve 5 is integrally arranged on the outer side of the valve body 1, namely, one side of the valve body corresponding to the outer part of the oxygen cabin, the upper side of the outward opening valve is fixed with the connecting shaft 4 in a welding mode or a bolt connection mode, the connecting shaft 4 is arranged on the mounting plate 12 in the valve body 1 through a bearing 42, and the connecting shaft 4 drives the lower side of the outward opening valve 5 to rotate when rotating so as to open and close the pressure relief opening 13 on the lower side.
The valve opening and closing assembly 3 is provided with a rotating shaft 31, a worm gear transmission group 32, a transmission shaft 34 and a gear transmission group 33; the rotating shaft 31 is arranged on the valve body 1 through a bearing seat 43, and two ends of the rotating shaft 31 are respectively positioned at the inner side and the outer side of the valve body 1 and are connected with rotating wheels 35; the transmission shaft 34 is arranged in the valve body 1 through a bearing seat 44, is transversely arranged between the two pressure relief openings 13 and is perpendicular to the rotating shaft 31, one end, facing the rotating shaft 31, of the transmission shaft 34 is connected with the rotating shaft 31 through the worm gear transmission group 32, and one end, facing away from the rotating shaft 31, of the transmission shaft is connected with the connecting shaft 4 of the inward-opening valve 2 and the outward-opening valve 5 through the gear transmission group 33 so as to drive the inward-opening valve 2 and the outward-opening valve 5 to reversely rotate, so that the inward-opening valve 2 and the outward-opening valve 5 are synchronously opened or closed.
Specifically, the worm gear-worm driving set 32 includes a worm connected to the rotating shaft 31 and a worm gear connected to the driving shaft 34, and the differential ratio between the worm gear and the worm can be adjusted according to the actual requirement, so that the rotating shaft 31 is convenient to drive the driving shaft 34 to rotate.
The gear set 33 includes a driving gear 332, a first driven gear 331 and a second driven gear 333 which are positioned at both upper and lower sides of the driving gear 332 and simultaneously engage with the driving gear 332. The first driven gear 331 and the second driven gear 333 are respectively connected to end positions of the two connecting shafts 4, and the transmission gear 332 is connected to an end of the transmission shaft 34 facing away from the worm gear. Based on this structure, after the transmission shaft rotates, can drive two connecting shafts 4 synchronous rotation to two pressure release openings 13 are opened and close in step.
The outside of valve body 1 is provided with baffle 6, baffle 6 is last to have opening gas outlet 61 down. The baffle 6 can shield and hide the pressure relief opening 13, the valve and the valve opening and closing assembly 3, and only one rotating wheel 35 is reserved on the outer side of the baffle 6 for an operator to rotate.
When the internal-open type valve is used, the internal-open type valve is assembled to the side wall of the oxygen cabin, and the internal-external staff in the oxygen cabin drives the rotating shaft 31, the transmission shaft 34 and the connecting shaft 4 to sequentially rotate through the rotating wheel 35, so that the internal-open type valve 2 and the external-open type valve 5 are synchronously opened and closed.
In the process, the two pressure relief openings 13 can simultaneously achieve the pressure relief function, so that the effect of rapid pressure relief is achieved; secondly, the inward opening valve 2 is positioned at the inner side of the valve body 1, namely in the oxygen cabin, one side of the inward opening valve 2, which is opposite to the pressure relief opening 13, is completely exposed in the cabin air pressure, the cabin air pressure can press the inward opening valve 2 on the pressure relief opening 13, namely the larger the area of the inward opening valve 2 is, the larger the pressure attached on the pressure relief opening 13 is; the part of the outward opening valve 5 corresponding to the pressure relief opening 13 is exposed in the cabin air pressure, and meanwhile the cabin air pressure exerts an outward opening acting force on the outward opening valve 5, namely, the larger the contact area between the outward opening valve 5 and the cabin air pressure is, the larger the outward opening valve 5 is pushed to open, so that the force required for driving the valve to open and close can be adjusted by adjusting the difference between the area of the inward opening valve 2 and the contact area between the outward opening valve 5 and the cabin air pressure, and the opening and closing of the valve are facilitated. In specific implementation, the area of the internal opening valve is larger than that of the external opening valve.
Unless specifically stated otherwise, in the present utility model, if there are terms such as "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the positional or positional relationship indicated on the drawings are merely for convenience of describing the present utility model and simplifying the description, and not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, the terms describing the positional or positional relationship in the present utility model are merely for exemplary illustration and not to be construed as limitations of the present patent, and it is possible for those skilled in the art to combine the drawings and understand the specific meaning of the above terms according to circumstances.
Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" herein are to be construed broadly, e.g., they may be fixed, removable, or integral; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (5)
1. An oxygen cabin pressure relief device, comprising:
the valve body is provided with two pressure relief openings for communicating the inside and the outside of the oxygen cabin;
the inner opening valve and the outer opening valve are respectively arranged at the two pressure relief openings through connecting shafts so as to open and close the pressure relief openings;
the valve opening and closing assembly is provided with a rotating shaft, a worm gear transmission group, a transmission shaft and a gear transmission group;
the rotating shaft is arranged on the valve body, and two ends of the rotating shaft are respectively positioned at the inner side and the outer side of the valve body and are connected with rotating wheels;
the transmission shaft is arranged in the valve body, one end facing the rotating shaft is connected with the rotating shaft through the worm gear transmission group, and one end facing away from the rotating shaft is connected with the connecting shaft of the inward-opening valve and the outward-opening valve through the gear transmission group so as to drive the inward-opening valve and the outward-opening valve to reversely rotate, so that the inward-opening valve and the outward-opening valve are synchronously opened or closed.
2. The oxygen cabin pressure relief device of claim 1, wherein: the rotating shaft is perpendicular to the transmission shaft, and the worm and gear transmission group comprises a worm connected to the rotating shaft and a worm wheel connected to the transmission shaft.
3. The oxygen cabin pressure relief device of claim 1, wherein: the gear transmission group comprises a transmission gear, a first driven gear and a second driven gear which are positioned at two sides of the transmission gear and meshed with the transmission gear at the same time;
the first driven gear and the second driven gear are respectively connected to the two connecting shafts, and the transmission gear is connected to the transmission shaft.
4. The oxygen cabin pressure relief device of claim 1, wherein: the valve body is characterized in that a baffle is arranged on the outer side wall of the valve body, and an air outlet with a downward opening is formed in the baffle.
5. The oxygen cabin pressure relief device of claim 1, wherein: the outer side wall of the valve body is provided with an assembly groove for being clamped on the side wall of the oxygen cabin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321023211.8U CN219888735U (en) | 2023-04-28 | 2023-04-28 | Oxygen cabin pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321023211.8U CN219888735U (en) | 2023-04-28 | 2023-04-28 | Oxygen cabin pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219888735U true CN219888735U (en) | 2023-10-24 |
Family
ID=88410904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321023211.8U Active CN219888735U (en) | 2023-04-28 | 2023-04-28 | Oxygen cabin pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219888735U (en) |
-
2023
- 2023-04-28 CN CN202321023211.8U patent/CN219888735U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |