CN2120943U - Oil cavity intercommunication type slow close check valve - Google Patents
Oil cavity intercommunication type slow close check valve Download PDFInfo
- Publication number
- CN2120943U CN2120943U CN 92210457 CN92210457U CN2120943U CN 2120943 U CN2120943 U CN 2120943U CN 92210457 CN92210457 CN 92210457 CN 92210457 U CN92210457 U CN 92210457U CN 2120943 U CN2120943 U CN 2120943U
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- China
- Prior art keywords
- piston
- valve
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- utility
- check valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to an oil cavity intercommunication type slow close check valve which belongs to a universal machine. The utility model is provided with a piston barrel on the lower part of a valve body. A piston is arranged in a piston barrel after installing on a piston rod. Two oil cavities on the both sides of the piston barrel are connected through a damping communicating pipe which is connected with a breathing pipe. A control valve and an exhaust door are arranged on the communicating pipe. The utility model has the advantages of safe operation, and long service life, and thoroughly solves the problems of the rustiness the scale formation and the malfunction of a slow closing device.
Description
The utility model is a kind of oil pocket communication type buffer valve, belongs to universal machine.
The present buffer valve that uses, the medium of its slow closing device conducting pressure all be unable to do without carries liquid, and it is used for the clear water pipeline and easily produces corrosion, the incrustation problem when being used for having the pipeline of silt, easily producing and stops up, make Slow Close malfunctioning, piston packing easily leaks in use for some time.
It is transmitting medium with oil that the purpose of this utility model provides a kind of, and is difficult for producing corrosion, obstruction, Slow Close oil pocket communication type buffer valve flexibly.
The utility model is realized with following technological scheme: be processed with piston cylinder in the check valve body bottom, piston cylinder cooperates with piston, and piston is contained on the piston rod, and the piston cylinder both sides are full of fluid, and piston rod one end contacts with valve plate.Piston cylinder both sides oil pockets was communicated with damping connecting tube, and damping is equipped with control valve on connecting tube, the may command Slow Close time, for preventing to produce thermal stress, and influence the Slow Close effect owing to fluid expands with heat and contract with cold, and establish the fluid respirating tube on damping connecting tube and communicate with fed sheet of a media.Can probe into automatically in the valve body for making safety check open the back piston bar, place a spring at the ante-chamber of piston.
The utlity model has the characteristics reliable, long service life that operate steadily, thoroughly solve corrosion, fouling, the malfunctioning problem of slow closing device.
Now in conjunction with the accompanying drawings the utility model is described in further detail.
Fig. 1 is the utility model plan view.
Fig. 1 is the utility model specific embodiment.Valve plate 1 is contained in the valve body by hinging shaft 14, spring 7 is packed in the piston cylinder ante-chamber 5, after being contained on the piston rod 2, piston 3 packs in the piston cylinder 4, piston rod 2 contacts with valve plate 1, damping connecting tube 8 is communicated with the ante-chamber 6 and the back cavity 5 of piston cylinder, and control valve 10 and exhaust valve 12 were housed on damping connecting tube 8, and damping connecting tube 8 is connected with respirating tube 9, respirating tube 9 is connected with the valve body ante-chamber, and oil filler pipe 11 and exhaust valve 12 are housed on respirating tube 9.Counterweight pendulum 15 is connected with hinge top.
Claims (1)
1, a kind of oil pocket communication type buffer valve, it is characterized in that valve plate 1, be contained in the valve body by hinge axis 14, spring 7 is packed in the piston cylinder ante-chamber 5, in the piston cylinder 4 of packing into after piston 3 is contained on the piston rod 2, piston rod 2 contacts with valve plate 1, damping connecting tube 8 is communicated with the ante-chamber 6 and the back cavity 5 of piston cylinder, and control valve 10 and exhaust valve 12 were housed on damping connecting tube 8, and damping connecting tube 8 is connected with respirating tube 9, respirating tube 9 is connected with the valve body ante-chamber, and oil filler pipe 11 and exhaust valve 12 are housed on the respirating tube 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92210457 CN2120943U (en) | 1992-03-20 | 1992-03-20 | Oil cavity intercommunication type slow close check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92210457 CN2120943U (en) | 1992-03-20 | 1992-03-20 | Oil cavity intercommunication type slow close check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2120943U true CN2120943U (en) | 1992-11-04 |
Family
ID=4955576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92210457 Granted CN2120943U (en) | 1992-03-20 | 1992-03-20 | Oil cavity intercommunication type slow close check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2120943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101258566B (en) * | 2005-11-16 | 2011-01-19 | Ctr工业制造有限公司 | Transformer conservator isolation valve (TCIV) |
| CN111501901A (en) * | 2020-04-20 | 2020-08-07 | 常州市市政工程设计研究院有限公司 | Rainwater collection system and method |
-
1992
- 1992-03-20 CN CN 92210457 patent/CN2120943U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101258566B (en) * | 2005-11-16 | 2011-01-19 | Ctr工业制造有限公司 | Transformer conservator isolation valve (TCIV) |
| CN111501901A (en) * | 2020-04-20 | 2020-08-07 | 常州市市政工程设计研究院有限公司 | Rainwater collection system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |