CN201810869U - Double-bellows sealing structure for valve - Google Patents
Double-bellows sealing structure for valve Download PDFInfo
- Publication number
- CN201810869U CN201810869U CN2010205554190U CN201020555419U CN201810869U CN 201810869 U CN201810869 U CN 201810869U CN 2010205554190 U CN2010205554190 U CN 2010205554190U CN 201020555419 U CN201020555419 U CN 201020555419U CN 201810869 U CN201810869 U CN 201810869U
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- Prior art keywords
- valve
- bellows
- valve rod
- corrugated pipe
- utility
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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.)
- Expired - Fee Related
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Abstract
The utility model relates to a double-bellows sealing structure for a valve, comprising a valve rod penetrating through a cover plate, the front end of the valve rod is sleeved with an inner bellows; the outer side of the inner bellows is provided with an outer bellows; the front end of the inner bellows is connected with the top of the front end of the valve rod; the bottom end of the inner bellows is connected with the front end of the outer bellows through an intermediate connecting sleeve; and the bottom end of the outer bellows is connected with the cover plate. When the valve is opened, the inner bellows is firstly compressed to a limiting position, then the valve rod is also opened for certain height and t the outer bellows is continuously compressed through the inner bellows and the intermediate connecting sleeve to enable the valve to be continuously opened so as to meet needed requirements.
Description
Technical field
The utility model relates to the valve seal technical field of structures, concrete a kind of valve bi-bellow sealing configuration that relates to.
Background technique
Drive the opening and closing that the spool lifting realizes valve by valve rod in the prior art,, cause the filler wearing and tearing, thereby cause the leakage of valve because valve rod is often movable.Cause the staff often to tighten Gland, to reach the purpose of sealing.
For this reason, the sylphon seal structure has appearred in the prior art, the valve handle activity place adopts the bellows that can compress to seal, but because the compression ratio of bellows is less, the stroke that some valve is opened is bigger, adopting the overall structure bellows structure that enough bearing spaces will be arranged, can only be lengthening valve rod neck, so not only uneconomical but also take up room.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes problems of the prior art, and a kind of valve bi-bellow sealing configuration is provided.
In order to address the above problem the technical solution of the utility model is such:
Valve bi-bellow sealing configuration, comprise the valve rod that passes cover plate, the valve rod front end is with an inner corrugated pipe, the inner corrugated pipe arranged outside has an outward corrugated tube, the inner corrugated pipe front end connects the valve rod front top, the inner corrugated pipe bottom is by the front end of intermediate connecting sleeve connection outward corrugated tube, and the bottom of outward corrugated tube connects cover plate.
The ripple of outward corrugated tube is a serpentine.
The ripple of inner corrugated pipe is " U " shape.
Beneficial effect: bi-bellow sealing configuration described in the utility model, good sealing effect simple in structure can significantly reduce the shared space of valve rod.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the structural representation of valve described in the utility model with the bi-bellow sealing configuration;
Fig. 2 is the I place bellows serpentine ripple enlarged view of Fig. 1;
Fig. 3 is bellows " U " the ripple enlarged view at the II place of Fig. 1.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1
Valve bi-bellow sealing configuration comprises a cover plate 1, and cover plate 1 passes a valve rod 2, and valve rod 2 is provided with the sylphon seal structure.The sylphon seal structure makes inside and outside two joint bellows structures into by a whole bellows of following, and inner corrugated pipe 3 is inserted in the outward corrugated tube 4, and being inserted in length just is inner corrugated pipe 3 compression back limit reduction lengths.The front end of inner corrugated pipe 3 connects valve rod 2 front top, and inner corrugated pipe 3 bottoms are by the front end of an intermediate connecting sleeve 5 connection outward corrugated tubes 4, and the bottom of outward corrugated tube 4 connects cover plate 1.Above-mentioned connection is and is tightly connected.
When opening of valves, first compression inner corrugated pipe 3, make it be compressed to limit position after, valve rod 2 has also been opened certain height, continues compression outward corrugated tubes 4 by inner corrugated pipe 3 and connecting sleeve 5 more afterwards, makes valve continue to open to reach to need requirement.
Interior outward corrugated tube adopts difform corrugated form.
Referring to Fig. 2 and Fig. 3
The ripple of outward corrugated tube 4 adopts the serpentine shape, and the ripple of inner corrugated pipe 3 adopts " U " shape.Because the bearing capacity of serpentine shape bellows is bigger than " U " shape bellows, for outward corrugated tube in guaranteeing not make when the opening of valves moves simultaneously, increase the valve opening force moment of torsion, outward corrugated tube successively is compressed in making, and has adopted difform bellows form.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. valve bi-bellow sealing configuration, comprise the valve rod that passes cover plate, the valve rod front end is with an inner corrugated pipe, the inner corrugated pipe arranged outside has an outward corrugated tube, the inner corrugated pipe front end connects the valve rod front top, the inner corrugated pipe bottom is by the front end of intermediate connecting sleeve connection outward corrugated tube, and the bottom of outward corrugated tube connects cover plate.
2. valve bi-bellow sealing configuration according to claim 1 is characterized in that the ripple of outward corrugated tube is a serpentine.
3. valve bi-bellow sealing configuration according to claim 1 is characterized in that, the ripple of inner corrugated pipe is " U " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205554190U CN201810869U (en) | 2010-10-11 | 2010-10-11 | Double-bellows sealing structure for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205554190U CN201810869U (en) | 2010-10-11 | 2010-10-11 | Double-bellows sealing structure for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810869U true CN201810869U (en) | 2011-04-27 |
Family
ID=43893810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205554190U Expired - Fee Related CN201810869U (en) | 2010-10-11 | 2010-10-11 | Double-bellows sealing structure for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810869U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195931A (en) * | 2012-01-06 | 2013-07-10 | 沈阳新松机器人自动化股份有限公司 | Multistage welded bellow |
| CN104948829A (en) * | 2014-03-27 | 2015-09-30 | 江苏奎泽机械工业有限公司 | Novel metal corrugated pipe component structure |
| CN111022654A (en) * | 2019-11-22 | 2020-04-17 | 江苏克劳特低温技术有限公司 | Low-temperature valve |
-
2010
- 2010-10-11 CN CN2010205554190U patent/CN201810869U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195931A (en) * | 2012-01-06 | 2013-07-10 | 沈阳新松机器人自动化股份有限公司 | Multistage welded bellow |
| CN103195931B (en) * | 2012-01-06 | 2015-07-29 | 沈阳新松机器人自动化股份有限公司 | Multistage welded bellows |
| CN104948829A (en) * | 2014-03-27 | 2015-09-30 | 江苏奎泽机械工业有限公司 | Novel metal corrugated pipe component structure |
| CN111022654A (en) * | 2019-11-22 | 2020-04-17 | 江苏克劳特低温技术有限公司 | Low-temperature valve |
| CN111022654B (en) * | 2019-11-22 | 2021-11-26 | 江苏克劳特低温技术有限公司 | Low-temperature valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI XINFENG VALVE TECHNOLOGY SERVICE CENTER Free format text: FORMER OWNER: SHENGBOLAI VALVE CO., LTD. Effective date: 20141205 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201506 JINSHAN, SHANGHAI TO: 201501 JINSHAN, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141205 Address after: Jinshan District Fengjing town Shanghai city 201501 Ring East Road 65 Lane 2, room 3670 Patentee after: Shanghai Xin Feng valve technology service center Address before: 201506 Shanghai City, Jinshan District Road No. 218, building 6, 4 industry district Patentee before: Shengbolai Valve Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171019 Address after: 201506 Shanghai city went Jinshan District Jinshan Industrial Zone Road No. 855 Patentee after: Shengbolai Valve Co., Ltd. Address before: Jinshan District Fengjing town Shanghai city 201501 Ring East Road 65 Lane 2, room 3670 Patentee before: Shanghai Xin Feng valve technology service center |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20191011 |