CN201954056U - Air exhaust check valve for plate-type high-pressure air drying and purifying device - Google Patents
Air exhaust check valve for plate-type high-pressure air drying and purifying device Download PDFInfo
- Publication number
- CN201954056U CN201954056U CN2011200194846U CN201120019484U CN201954056U CN 201954056 U CN201954056 U CN 201954056U CN 2011200194846 U CN2011200194846 U CN 2011200194846U CN 201120019484 U CN201120019484 U CN 201120019484U CN 201954056 U CN201954056 U CN 201954056U
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- valve
- air
- valve seat
- exhaust check
- check valve
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Abstract
The utility model discloses an air exhaust check valve for a plate-type high-pressure air drying and purifying device. The air exhaust check valve comprises a valve body and a valve seat which are matched with each other through a screw thread; a through air hole is formed in the axial direction of the central shaft of the valve seat; an air cavity communicated with the air hole of the valve seat is formed on the valve body; an air flow channel penetrating through the wall of the valve body is formed in the circumferential direction of the air cavity; a valve core for controlling connection and disconnection between the air flow channel and the air hole is arranged in the air cavity; the air exhaust check valve is characterized in that: an inner cavity is formed at the end, far away from the valve seat, of the valve core; a spring is arranged in the inner cavity along the axial direction; the outer wall of the valve core is in clearance fit with the inner wall of the valve body; a sealing slot is formed at the inner end of the valve seat; a sealing ring is sleeved into the sealing slot; and the inner end of the valve seat and the inner wall of the valve body are squeezed and deformed to seal through the sealing ring. The air exhaust check valve is assembled into an installation hole in a lower plate of the plate-type high-pressure air drying and purifying device in an integrated structure; regardless of assembly mode of the lower plate, the air exhaust check valve is convenient to assemble; therefore, the difficulty in assembly and maintenance of the conventional air exhaust check valve is avoided, and the reliability and the working efficiency are improved.
Description
Technical field:
The utility model relates to gas unidirectional valve field, particularly a kind of one-way valve that is used for board-like pressurized gas dry decontamination device.
Background technique:
What install in the lower plate of existing board-like pressurized gas dry decontamination device is the embedded exhaust check valve of monomer, by the spiral plug, spring, seal ring and steel ball are formed, in assembly process, the steel ball center will with spring center on a center line, lower plate need be holded up and can be assembled success, has increased in the device maintenance process difficulty of changing this one-way valve greatly.
The model utility content:
The purpose of this utility model is to provide a kind of exhaust check valve of overall structure mode, and no matter which kind of mode is lower plate be is assembled, all can be convenient for assembly, solved the difficult problem in the assembling maintenance, and improved reliability and work efficiency.
The purpose of this utility model is achieved by the following technical programs:
The exhaust check valve that is used for board-like pressurized gas dry decontamination device, the valve body and the valve seat that comprise screw-thread fit, the central shaft of valve seat is to the pore that perforation is arranged, valve body is provided with the air cavity that is communicated with the valve seat pore, air cavity is circumferentially with the air-flow path that penetrates valve body wall, be provided with the spool of control air-flow path and pore break-make in the described air cavity, it is characterized in that: described spool be provided with inner chamber apart from the valve seat far-end, one spring is set in the inner chamber vertically, spool outer wall and valve interior wall Spielpassung, described valve seat the inner is provided with seal groove, is inserted in seal ring in the seal groove, and valve seat is inner to be sealed by the seal ring compressional deformation with valve interior wall.
The outer end of described valve seat is a conical surface, and this conical surface cooperates with mounting hole in the board-like pressurized gas dry decontamination device lower plate and forms the nonflexible line sealing.
The external diameter of the nearly valve seat end of described spool is less than the air cavity internal diameter, is convenient to that air-flow communicates between air-flow path and the pore.
When pore as gas-entered passageway, air-flow path is during as outlet passageway, high-pressure gas pressure impels the spool pressure spring to be moved to the left, the gas flow outlet passageway.When air-flow path as gas-entered passageway, pore is during as outlet passageway, pressurized gas enter valve inner, gas pressure is depressed on the spool face, impels spool and seal ring to closely cooperate, air-flow path is shut, and reaches the effect of unidirectional ventilation.
The utility model is to be connected with lower plate in the board-like pressurized gas dry decontamination device with the exhaust check valve of overall structure mode, no matter which kind of mode is lower plate be is assembled, all can be convenient for assembly, solved the difficult problem in the existing exhaust check valve assembling maintenance, improved reliability and work efficiency.
Description of drawings:
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the erection drawing of lower plate in the utility model and the board-like pressurized gas dry decontamination device.
Among the figure: 1. valve seat, 2. valve body, 3. seal ring, 4. spool, 5. spring, 6. pore, 7. air-flow path, 8. air-flow path, 9. inner chamber, 10. conical surface, 11. air cavitys, 12. screw threads, 13. adsorption towers, 14. adsorption towers, 15 crest lines, 16 exhaust check valves, 17. exhaust passages.
Embodiment:
Below in conjunction with accompanying drawing the utility model is described in further detail:
As shown in Figure 1, valve seat 1 central shaft is to the pore 6 that perforation is arranged, valve body 2 is provided with the air cavity 11 that is communicated with valve seat pore 6, air cavity 11 is circumferentially with the air-flow path 7,8 that penetrates valve body wall, and spool 4 is provided with inner chamber 9 apart from the valve seat far-end, and spring 5 is put into inner chamber 9, pack into together then in the air cavity 11 of valve body 2, this moment spool 4 outer walls and valve body 2 inwall Spielpassung, the external diameter of the nearly valve seat end of spool is less than the air cavity internal diameter, is convenient to that air-flow communicates between air-flow path and the pore.Be inserted in seal ring 3 on the seal groove of valve seat 1 the inner, valve seat 1 is threaded with valve body 2 then, and the seal ring 3 of this moment because of the inwall with check valve body closely cooperates deformation takes place, being stuck in the seal groove tightly, and be unlikely to be washed out by high pressure draught.In conjunction with shown in Figure 2, this exhaust check valve 16 is installed in the inside groove of exhaust passage 17 1 sides of adsorption tower 13,14, to be conical surface 10 cooperate with mounting hole in the board-like pressurized gas dry decontamination device lower plate in the outer end of valve seat 1, and form the nonflexible lines sealing with accurate applying of crest line 15 of lower plate, when screwing in lower plate, whole one-way valve is threaded with lower plate by the screw thread on the valve body 2 12, no matter which kind of mode is lower plate be is assembled, all can be convenient for assembly, solve the difficult problem in the assembling maintenance, improved reliability and work efficiency.
When pressurized gas were entered by pore 6, gas pressure impelled spool 4 pressure springs 5 to be moved to the left, and air-flow path 7,8 is opened, and air-flow path 7,8 is as outlet passageway, the gas flow outlet passageway.When pressurized gas were entered by air-flow path 7,8, pressurized gas entered valve inner, and gas pressure is depressed on the spool face, impelled spool and seal ring 3 to closely cooperate, and air-flow path is shut, and reaches the effect of unidirectional ventilation.
The foregoing description only is a better embodiment of the present utility model; describe technical conceive of the present utility model and essential implementation in detail; be not to be that protection domain of the present utility model is limited; all any simple modification and equivalent structure transformation or modifications of being done according to the utility model spirit all should be encompassed within the protection domain of the present utility model.
Claims (3)
1. the exhaust check valve that is used for board-like pressurized gas dry decontamination device, the valve body and the valve seat that comprise screw-thread fit, the central shaft of valve seat is to the pore that perforation is arranged, valve body is provided with the air cavity that is communicated with the valve seat pore, air cavity is circumferentially with the air-flow path that penetrates valve body wall, be provided with the spool of control air-flow path and pore break-make in the described air cavity, it is characterized in that: described spool be provided with inner chamber apart from the valve seat far-end, one spring is set in the inner chamber vertically, spool outer wall and valve interior wall Spielpassung, described valve seat the inner is provided with seal groove, is inserted in seal ring in the seal groove, and valve seat is inner to be sealed by the seal ring compressional deformation with valve interior wall.
2. the exhaust check valve that is used for board-like pressurized gas dry decontamination device according to claim 1, it is characterized in that: the outer end of described valve seat is a conical surface, and this conical surface cooperates with mounting hole in the board-like pressurized gas dry decontamination device lower plate and forms the nonflexible line sealing.
3. the exhaust check valve that is used for board-like pressurized gas dry decontamination device according to claim 1 is characterized in that: the external diameter of the nearly valve seat end of described spool is less than the air cavity internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200194846U CN201954056U (en) | 2011-01-21 | 2011-01-21 | Air exhaust check valve for plate-type high-pressure air drying and purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200194846U CN201954056U (en) | 2011-01-21 | 2011-01-21 | Air exhaust check valve for plate-type high-pressure air drying and purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201954056U true CN201954056U (en) | 2011-08-31 |
Family
ID=44498166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200194846U Expired - Fee Related CN201954056U (en) | 2011-01-21 | 2011-01-21 | Air exhaust check valve for plate-type high-pressure air drying and purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201954056U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387218A (en) * | 2015-12-10 | 2016-03-09 | 西安航天动力研究所 | Air-control pilot electromagnetic valve |
| CN112177896A (en) * | 2020-10-26 | 2021-01-05 | 中国船舶重工集团衡远科技有限公司 | Air path switching device of compressor |
-
2011
- 2011-01-21 CN CN2011200194846U patent/CN201954056U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387218A (en) * | 2015-12-10 | 2016-03-09 | 西安航天动力研究所 | Air-control pilot electromagnetic valve |
| CN112177896A (en) * | 2020-10-26 | 2021-01-05 | 中国船舶重工集团衡远科技有限公司 | Air path switching device of compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BENGBU FANGZHENG GAS EQUIPMENT CO., LTD. Free format text: FORMER NAME: BENGBU FANGZHENG GAS PURIFICATION EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Double Pier Road 233000 Anhui city of Bengbu province Huaishang District No. 2688 Patentee after: BENGBU FANGZHENG GAS PURIFICATION EQUIPMENT CO., LTD. Address before: A-2 Lu Nan Huai Industrial Park 233000 Anhui city of Bengbu Province Patentee before: Bengbu Fangzheng Gas Purification Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20150121 |
|
| EXPY | Termination of patent right or utility model |