CN203516788U - Zero-leakage lifting valve - Google Patents
Zero-leakage lifting valve Download PDFInfo
- Publication number
- CN203516788U CN203516788U CN201320615605.2U CN201320615605U CN203516788U CN 203516788 U CN203516788 U CN 203516788U CN 201320615605 U CN201320615605 U CN 201320615605U CN 203516788 U CN203516788 U CN 203516788U
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- valve
- valve plate
- plate
- valve body
- rod
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Abstract
The utility model provides a zero-leakage lifting valve which at least comprises a valve rod, a valve body, an air cylinder, a seal fan and valve plates. The valve body is in the shape of a hollow cylinder, an air inlet is formed in the bottom of the valve body, an air vent is formed in the lateral wall of the upper portion of the valve body, an upper partition plate and a lower partition plate are arranged on the inner wall of the middle of the valve body, a cavity is formed in the part between the two partition plates and the seal fan is installed on the corresponding inner wall of the cavity. Through holes are formed both in the upper partition plate and the lower partition plate, and the valve plates comprise the upper valve plate and the lower valve plate, wherein the through hole in the upper partition plate is covered with the upper valve plate, the through hole in the lower partition plate is covered with the lower valve plate and the upper valve plate is fixedly connected with the lower valve plate through a connecting piece. The air cylinder is fixedly installed on a top cover of the valve body, the valve rod is installed between the air cylinder and the upper valve plate, the top end of the valve rod penetrates through the top cover of the valve body to be connected with the air cylinder and the bottom end of the valve rod is fixedly connected to the upper valve plate. The zero-leakage lifting valve overcomes the defects in the prior art, is simple in structure and good in sealing performance and can realize zero leakage.
Description
Technical field
The utility model provides a kind of valve, is specially a kind of poppet valve that is applied in the favorable sealing property in cleaning shaft.
Background technique
In the casing of deduster, often air-flow need to be carried at present, in course of conveying, air-flow often needs to carry out reducing, break-in and break-make.To achieve these goals, poppet valve is often installed in pipeline, poppet valve has advantages of that structure is little, maintenance is measured littlely, and can realize reducing, break-in and the break-make of air-flow.But there is following shortcoming in existing poppet valve: valve body, when closing, because sealing is inadequate, therefore exists the phenomenon of the leakage of air-flow, easily accumulates dust simultaneously, and its thermal insulation property is also not ideal.Therefore be not suitable for and need to seal isolated place.
Summary of the invention
The utility model provides a kind of zero leakage poppet valve, has solved the deficiency in background technique, and this poppet valve arrangements is simple, and good airproof performance can be realized zero and reveal.
Realizing the technological scheme that the utility model above-mentioned purpose adopts is:
A kind of zero leakage poppet valve, at least comprise valve rod, valve body, cylinder, seal fan and valve plate, valve body is open circles tubular, its bottom is provided with suction port, the sidewall on its top is provided with relief opening, the inwall at valve body middle part is provided with upper and lower two dividing plates, and the position between two dividing plates forms a chamber, and seal fan is arranged on inwall corresponding to chamber place and to delivery air in chamber; On upper clapboard and lower clapboard, be equipped with through hole, valve plate is comprised of upper valve plate and lower valve plate, wherein go up on the through hole that valve plate covers upper clapboard, lower valve plate covers on the through hole of lower clapboard, the area of lower valve plate is less than the via area of upper clapboard and can, through the through hole of upper clapboard, between upper valve plate and lower valve plate, by link, be fixedly connected with; Described cylinder is fixedly mounted on the top cover of valve body, valve rod is arranged between cylinder and upper valve plate, the top of valve rod is connected with cylinder and moves up and down under the drive of cylinder through the top cover of valve body, and the bottom of valve rod is fixedly connected on valve plate and drives upper valve plate and lower valve plate motion.
Described link comprises flexible jointing-rod and be enclosed within the holddown spring on flexible jointing-rod, and the two ends of holddown spring withstand on respectively on valve plate and lower valve plate.
The zero leakage poppet valve that the utility model provides compared with prior art has following advantage: when needs cut off air-flow, upper valve plate and lower valve plate cover on through hole air-flow are cut off, now seal fan blasts air in chamber, when the air pressure in chamber is greater than the air pressure outside chamber, air will be by overflowing outside chamber in chamber, thereby the outer gas leakage of prevention chamber, realizes zero and reveals.
Accompanying drawing explanation
The overall structure schematic diagram of the zero leakage poppet valve that Fig. 1 provides for the utility model;
In figure: 1-cylinder, 2-valve body, the upper valve plate of 3-, 4-flexible jointing-rod, 5-holddown spring, 6-seal fan, 7-lower valve plate, 8-valve rod.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done to detailed specific description.
The zero leakage poppet valve that the utility model provides at least comprises valve rod 8, valve body 2, cylinder 1, seal fan 6 and valve plate, valve body 2 is open circles tubular, its bottom is provided with suction port, the sidewall on its top is provided with relief opening, the inwall at valve body 2 middle parts is provided with upper and lower two dividing plates, position between two dividing plates forms a chamber, and seal fan 6 is arranged on inwall corresponding to chamber place and to delivery air in chamber; On upper clapboard and lower clapboard, be equipped with through hole, valve plate is comprised of upper valve plate 3 and lower valve plate 7, wherein go up on the through hole that valve plate 3 covers upper clapboard, lower valve plate 7 covers on the through hole of lower clapboard, the area of lower valve plate 3 is less than the via area of upper clapboard and can, through the through hole of upper clapboard, between upper valve plate 3 and lower valve plate 7, by link, be fixedly connected with; Described link comprises flexible jointing-rod 4 and is enclosed within the holddown spring 5 on flexible jointing-rod 4, and the two ends of holddown spring 5 withstand on respectively on valve plate 3 and lower valve plate 7.
Described cylinder 1 is fixedly mounted on the top cover of valve body 2, valve rod 8 is arranged between cylinder 1 and upper valve plate 3, the top of valve rod 8 is connected with cylinder 1 and moves up and down under the drive of cylinder 1 through the top cover of valve body 2, and the bottom of valve rod 8 is fixedly connected on valve plate 3 and drives upper valve plate and lower valve plate motion.
The working principle of the zero leakage poppet valve that the utility model provides is as follows: cylinder drives upper valve plate and lower valve plate motion, and when needs are opened poppet valve, upper valve plate and lower valve plate move to the top of valve body, and now air-flow is entered by suction port, by relief opening, is discharged; When needs cut off poppet valve, upper valve plate and lower valve plate move downward and withstand on dividing plate, through hole is covered, and chamber is airtight, now seal fan blasts air in chamber, when the air pressure in chamber is greater than the air pressure outside chamber, air will be by overflowing outside chamber in chamber, thereby stop the leakage of air-flow between suction port and relief opening.Go up and between valve plate, lower valve plate, adopt flexible connecting member to connect transmission power simultaneously, displacement and distortion simultaneously that therefore can adapt to because being heated, the distortion such as mechanical force causes, employing holddown spring can be guaranteed to seal as impacting force and closes.
Claims (2)
1. a zero leakage poppet valve, it is characterized in that: at least comprise valve rod, valve body, cylinder, seal fan and valve plate, valve body is open circles tubular, its bottom is provided with suction port, the sidewall on its top is provided with relief opening, the inwall at valve body middle part is provided with upper and lower two dividing plates, and the position between two dividing plates forms a chamber, and seal fan is arranged on inwall corresponding to chamber place and to delivery air in chamber; On upper clapboard and lower clapboard, be equipped with through hole, valve plate is comprised of upper valve plate and lower valve plate, wherein go up on the through hole that valve plate covers upper clapboard, lower valve plate covers on the through hole of lower clapboard, the area of lower valve plate is less than the via area of upper clapboard and can, through the through hole of upper clapboard, between upper valve plate and lower valve plate, by link, be fixedly connected with; Described cylinder is fixedly mounted on the top cover of valve body, valve rod is arranged between cylinder and upper valve plate, the top of valve rod is connected with cylinder and moves up and down under the drive of cylinder through the top cover of valve body, and the bottom of valve rod is fixedly connected on valve plate and drives upper valve plate and lower valve plate motion.
2. zero leakage poppet valve according to claim 1, is characterized in that: described link comprises flexible jointing-rod and be enclosed within the holddown spring on flexible jointing-rod, and the two ends of holddown spring withstand on respectively on valve plate and lower valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615605.2U CN203516788U (en) | 2013-09-30 | 2013-09-30 | Zero-leakage lifting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615605.2U CN203516788U (en) | 2013-09-30 | 2013-09-30 | Zero-leakage lifting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516788U true CN203516788U (en) | 2014-04-02 |
Family
ID=50375720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320615605.2U Expired - Lifetime CN203516788U (en) | 2013-09-30 | 2013-09-30 | Zero-leakage lifting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516788U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321888A (en) * | 2016-10-25 | 2017-01-11 | 天津市华邦科技发展有限公司 | Four-channel gas control device |
| CN109027259A (en) * | 2018-09-21 | 2018-12-18 | 昆山嘉科环保设备有限公司 | High-pressure gas seal poppet |
| CN116336214A (en) * | 2023-05-31 | 2023-06-27 | 杭州杭辅电站辅机有限公司 | Self-control type temperature matching valve |
-
2013
- 2013-09-30 CN CN201320615605.2U patent/CN203516788U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321888A (en) * | 2016-10-25 | 2017-01-11 | 天津市华邦科技发展有限公司 | Four-channel gas control device |
| CN106321888B (en) * | 2016-10-25 | 2018-11-13 | 天津市华邦科技发展有限公司 | Four-way gas control equipment |
| CN109027259A (en) * | 2018-09-21 | 2018-12-18 | 昆山嘉科环保设备有限公司 | High-pressure gas seal poppet |
| CN116336214A (en) * | 2023-05-31 | 2023-06-27 | 杭州杭辅电站辅机有限公司 | Self-control type temperature matching valve |
| CN116336214B (en) * | 2023-05-31 | 2023-07-21 | 杭州杭辅电站辅机有限公司 | Self-control type temperature matching valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
|
| CX01 | Expiry of patent term |