CN215293774U - Pressure communicating valve device for low-pressure cabin - Google Patents
Pressure communicating valve device for low-pressure cabin Download PDFInfo
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- CN215293774U CN215293774U CN202121137272.8U CN202121137272U CN215293774U CN 215293774 U CN215293774 U CN 215293774U CN 202121137272 U CN202121137272 U CN 202121137272U CN 215293774 U CN215293774 U CN 215293774U
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- communicating valve
- pressure
- valve rod
- cabin
- valve seat
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Abstract
The utility model provides a pressure communicating valve device for a low-pressure cabin, which comprises a communicating valve rod, a communicating valve seat, a sealing gasket and a stop block; the communicating valve seat is welded on the cabin door; a threaded through hole is transversely formed in the middle of the communicating valve seat; the communicating valve rod is a hollow screw rod and is in threaded connection with a through hole in the middle of the communicating valve seat; a groove is arranged in the middle of the communicating valve rod; the length of the groove on the communicating valve rod is greater than that of the threaded through hole in the middle of the communicating valve seat; the stop block is fixed at the right end of the communicating valve rod; the sealing gasket is fixed on the left end face of the stop block. The utility model discloses simple structure, convenient to use, the cabin is outer all can the switch valve, guarantees the function of releasing of minute-pressure ambient gas, has good seal when the valve is closed.
Description
Technical Field
The utility model belongs to the machine-building field, concretely relates to pressure intercommunication valve device that low-pressure cabin was used.
Background
At present, low-pressure cabin equipment is applied to the simulation experiment of various environment in a large number, in low-pressure cabin prior art field, can be provided with various and the door of extravehicular intercommunication on the low-pressure cabin body, the discrepancy of the subject of being convenient for and laboratory glassware, in low-pressure environment experiment operation, when needing to transport subject of being in-cabin or for extravehicular interim and laboratory glassware, because power equipment under the negative pressure environment can not absolute control pressure balance, will have micro inside and outside differential pressure, hatch door on the passageway just can't be opened.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a pressure communicating valve device for a low pressure cabin, which can rapidly open the cabin door by balancing the pressure inside and outside the cabin door.
The utility model discloses a realize through following technical scheme:
a pressure communicating valve device for a low-pressure cabin comprises a communicating valve rod, a communicating valve seat, a sealing gasket and a stop block; the communicating valve seat is welded on the cabin door; a threaded through hole is transversely formed in the middle of the communicating valve seat; the communicating valve rod is a hollow screw rod and is in threaded connection with a through hole in the middle of the communicating valve seat; a groove is arranged in the middle of the communicating valve rod; the length of the groove on the communicating valve rod is greater than that of the threaded through hole in the middle of the communicating valve seat; the check block is fixed on the periphery of the right end of the communicating valve rod; the sealing gasket is fixed on the left end face of the stop block.
Further, in order to rotate the communicating valve rod conveniently, hand wheels are fixed at the left end and the right end of the communicating valve rod.
Further, for better communication effect, the groove in the middle of the communication valve rod is a waist-shaped groove.
The utility model has the advantages that:
the utility model discloses simple structure, convenient to use, the cabin is outer all can the switch valve, guarantees the function of releasing of minute-pressure ambient gas, has good seal when the valve is closed.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a pressure communication valve device for a low-pressure chamber of the present invention.
Shown in the figure: 1-hand wheel; 2-a communicating valve rod; 3-communicating valve seats; 4-a cabin door; 5-a sealing gasket; 6-a block.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the drawings of the present application are only used to match the contents disclosed in the specification, so as to be known and read by those skilled in the art, and not to limit the practical limitations of the present invention, so that the present application does not have any technical significance, and any modification of the structure, change of the ratio relationship, or adjustment of the size should still fall within the scope of the present application without affecting the function and the achievable purpose of the present application. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and the like used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be considered as the scope of the present invention without substantial changes in the technical content.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in FIG. 1, the pressure communication valve device for the low pressure cabin comprises a communication valve rod 2, a communication valve seat 3, a sealing gasket 5 and a stop 6; the communicating valve seat 3 is welded on the cabin door 4; a threaded through hole is transversely formed in the middle of the communicating valve seat 3; the communicating valve rod 2 is a hollow screw rod and is in threaded connection with a through hole in the middle of the communicating valve seat 3; a groove is arranged in the middle of the communicating valve rod 2; the length of the groove on the communicating valve rod 2 is greater than that of the threaded through hole in the middle of the communicating valve seat 3; the stop block 6 is fixed on the periphery of the right end of the communicating valve rod 2; the sealing gasket 5 is fixed on the left end face of the stop block 6.
Further, the bottom of the valley at the left end and the right end of the communicating valve rod 2 is provided with a hand wheel 1.
Further, the groove in the middle of the communicating valve rod 2 is a waist-shaped groove.
The utility model discloses a theory of operation: a hole is formed in the cabin door 4, the connecting valve seat 3 penetrates through the cabin door 4 and is welded and installed on the cabin door 4, the hand wheel 1 is installed at the left end and the right end of the communicating valve rod 2, meanwhile, the sealing gasket 5 is installed on the left end face of the stop block 6, the communicating valve rod 2 is driven to rotate by rotating the hand wheel 1, and the communicating valve rod moves back and forth under the action of threads; when the cabin door 4 needs to be opened, the hand wheel 1 is rotated to move the communicating valve rod 2 rightwards, and the communicating valve rod 2 moves to a position where the groove on the communicating valve rod 2 is connected with the outside of the cabin, so that the pressure is balanced inside and outside the cabin, and the cabin door 4 can be opened easily; when a stable pressure environment is needed in the cabin, the communicating valve rod 2 drives the sealing gasket 5 to be screwed to the sealing surface of the connecting valve seat 3 to be screwed tightly so as to achieve a sealing state and prevent leakage.
The protection scope of the present invention is not limited to the technical solution disclosed in the specific embodiment, and all the modifications, equivalent replacements, improvements, etc. made by the technical entity of the present invention to the above embodiments all fall into the protection scope of the present invention.
Claims (3)
1. A pressure communication valve device for a low-pressure cabin is characterized by comprising a communication valve rod (2), a communication valve seat (3), a sealing gasket (5) and a stop block (6); the communicating valve seat (3) is welded on the cabin door (4); a threaded through hole is transversely formed in the middle of the communicating valve seat (3); the communicating valve rod (2) is a hollow screw rod and is in threaded connection with a through hole in the middle of the communicating valve seat (3); a groove is arranged in the middle of the communicating valve rod (2); the length of the groove on the communicating valve rod (2) is greater than that of the threaded through hole in the middle of the communicating valve seat (3); the stop block (6) is fixed at the right end of the communicating valve rod (2); the sealing gasket (5) is fixed on the end face of the left side of the stop block (6).
2. A pressure communication valve device for a low-pressure tank according to claim 1, wherein: and the communicated valve rod (2) is provided with hand wheels (1) at the bottoms of the left and right ends.
3. A pressure communication valve device for a low-pressure tank according to claim 1, wherein: the groove in the middle of the communicating valve rod (2) is a waist-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121137272.8U CN215293774U (en) | 2021-05-26 | 2021-05-26 | Pressure communicating valve device for low-pressure cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121137272.8U CN215293774U (en) | 2021-05-26 | 2021-05-26 | Pressure communicating valve device for low-pressure cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215293774U true CN215293774U (en) | 2021-12-24 |
Family
ID=79542099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121137272.8U Active CN215293774U (en) | 2021-05-26 | 2021-05-26 | Pressure communicating valve device for low-pressure cabin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215293774U (en) |
-
2021
- 2021-05-26 CN CN202121137272.8U patent/CN215293774U/en active Active
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