CN201306460Y - Sealing structure for gate valve - Google Patents
Sealing structure for gate valve Download PDFInfo
- Publication number
- CN201306460Y CN201306460Y CNU2008202336036U CN200820233603U CN201306460Y CN 201306460 Y CN201306460 Y CN 201306460Y CN U2008202336036 U CNU2008202336036 U CN U2008202336036U CN 200820233603 U CN200820233603 U CN 200820233603U CN 201306460 Y CN201306460 Y CN 201306460Y
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- China
- Prior art keywords
- connecting rod
- outlet
- driving body
- valve
- sealing plate
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- Expired - Lifetime
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Abstract
The utility model discloses a sealing structure for a gate valve, which aims to solve the problems of the poor sealing performance and the like in the prior art. The sealing structure comprises a valve which is provided with an inlet and an outlet on the upper end and the lower end, and a sealing plate which is arranged in the valve and adapted to the outlet; a guide rail is arranged between the inlet and the outlet of the valve; the guide rail is provided with a driving body which slides along the horizontal direction; both ends of a connecting rod are respectively hinged on the driving body and the sealing plate; one side of the driving body which is arranged on the connecting rod near the outlet is provided with an elastic part; the other end of the elastic part is arranged on the connecting rod; a position which corresponds to the sealing plate on one end of the valve near the outlet is provided with a stop block; and the connecting rod inclines under the pulling force of the elastic part. In the structure, a sealing cap moves to the outlet because of the sliding of the driving body; since the stop block stops, the angle between the connecting rod and the sealing cap is increased, the distance between the sealing plate and the driving body is also increased, the sealing plate moves down to compress the outlet, so as to realize the sealing effect.
Description
Technical field
The utility model relates to a kind of sealing configuration, in particular for the sealing configuration of push-pull valve.
Background technique
At present, relate to the push-pull valve that uses in the vacuum system, generally in order to regulate throughput, cut-out or to connect pipeline, the conductance rate is big, sealing is reliable and simple operation and other advantages because push-pull valve has, and is widely used.The working principle of push-pull valve is, is need close the time, and sealing plate is driven into sealing station by open position, sealing plate cuts out fully with the flange opening on the valve body get final product, and push-pull valve need be opened the time, sealing plate is driven into open position gets final product.Usually use seal ring to seal between sealing plate and the valve body, sealing plate is pressed on the valve body, so just can reduce the leak-down rate of valve greatly if apply a power again.
The model utility content
In order to overcome above-mentioned defective, the purpose of this utility model is to provide a kind of sealing plate is pressed on the valve body, the sealing configuration that is used for push-pull valve that leak-down rate is low.
In order to achieve the above object, the sealing configuration that is used for push-pull valve of the present utility model, comprise that the upper end is provided with import and the lower end is provided with the valve body of outlet and is arranged in the valve body and the suitable sealing plate of outlet, also comprise the guide rail and the driving body that is arranged on the guide rail that are arranged between interior import of valve body and the outlet, the connecting rod two ends are hinged respectively to be arranged on driving body and the sealing plate, driving body slides in the horizontal direction along guide rail, a side that is positioned at the nearly outlet of connecting rod on the driving body is provided with elastic member, the other end of elastic member is arranged on the connecting rod, an end and the sealing plate relevant position of nearly outlet are provided with limiting stopper in the described valve body, and described connecting rod is in heeling condition under the tension of elastic member.
Particularly, described guide rail is the axle that at least two horizontal intervals are provided with, or track or chute for matching with the driving body bottom.
Wherein, described axle two ends are respectively arranged with the fixed block that is fixed on valve interior wall, and when described driving body slid into the fixed block in nearly outlet port, described sealing plate was closed outlet, connecting rod and described sealing plate approximate vertical.
Wherein, described elastic member is a spring, and the connecting rod middle part is provided with bearing pin, and spring is arranged on the connecting rod by bearing pin; The driving body bottom is provided with protuberance, and the other end of spring is arranged on the described protuberance.
Further, the hinged pull bar that is provided with in described connecting rod middle part, the described pull bar the other end is connected with an end of spring by bearing pin.
Wherein, be provided with seal ring on the described outlet.
Further, described limiting stopper is a Limit Bearing.
Particularly, described connecting rod and spring can be connected with sealing plate and driving body respectively for a plurality of.
Above-mentioned structure, sealing cover moves to the valve outlet place under the slip effect of driving body, when moving to the outlet top fully, contact with limiting stopper, limiting stopper stops sealing plate to continue to move horizontally, and driving body continues horizontal slip on axle, originally the connecting rod inclined under the tension of elastic member with sealing plate, at this moment, the top under the drive of driving body with sealing plate between angle become gradually greatly, be tending towards 90 degree, therefore it is big that the distance between sealing plate and the driving body becomes gradually, sealing plate moves down and compresses outlet, thereby reaches sealing effect.
Description of drawings
Fig. 1 is the cross-sectional view of specific embodiment of the utility model.
Fig. 2 is enforcement state one cross-sectional view of specific embodiment of the utility model.
Fig. 3 is enforcement state two cross-sectional view of specific embodiment of the utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As Figure 1-3, the sealing configuration that is used for push-pull valve of the present utility model, comprise that the upper end is provided with import 11 and lower end and is provided with the valve body 10 of outlet 12 and is arranged in the valve body 10 sealing plates 30 suitable with outlet 12, also comprise and be arranged on imports 11 in the valve body 10 and export the guide rail 21 between 12 and be arranged on driving body 22 on the guide rail 21, connecting rod 23 two ends are hinged respectively to be arranged on driving body 22 and the sealing plate 30, driving body 22 slides in the horizontal direction along guide rail 21, a side that is positioned at connecting rod 23 nearly outlets on the driving body 22 is provided with elastic member 25, the other end of elastic member 25 is arranged on the connecting rod 23, an end and sealing plate 30 relevant positions of nearly outlet 12 are provided with limiting stopper 15 in the described valve body 10, and described connecting rod 23 is in heeling condition under the tension of elastic member.
Above-mentioned structure, as Fig. 2 and Fig. 3, sealing plate 30 and driving body 22 are hinged by connecting rod 23 two ends, sealing plate 30 and driving body 22 are together along guide rail 21 horizontal motion in valve body 10, connect an end of elastic member 25 on connecting rod 23, elastic member 25 the other ends are connected on the driving body 22, by elastic member 25 tension sealing plates 30, when sealing plate 30 was opened outlet 12 positions, connecting rod 23 tilted.When sealing plate 30 and driving body 22 moved to closed position together, sealing plate 30 contacted with limiting stopper 15, and limiting stopper 15 is fixedlyed connected with valve body 10.When driving body 22 moves forward, sealing plate 30 is because limited 15 restriction, can not continue again axially to travel forward with driving body 22, because driving body 22 is fixed on the guide rail 21, can not on perpendicular to guide rail 21 directions, move, therefore, the no longer axial motion of an end that this moment, connecting rod 23 was connected with sealing plate 30, and an end that is connected with driving body 22 moves forward, make connecting rod 23 become plumbness by heeling condition, driving body 22 stop motions, the distance between sealing plate 30 and the driving body 22 becomes big, therefore, sealing plate 30 moves vertically downward, it is big that distance between sealing plate 30 and the driving body 22 becomes because of the rotation of connecting rod 23, promptly sealing plate 30 have one with the vertical motion of guide rail 21 directions, sealing plate 30 can be pressed on valve body 10 by this motion and export on 12, the seal ring 13 of lower flange 12 end faces is compressed, reach good sealing effect, in this process, seal ring can not produce sliding friction with flange.
When outlet need be opened, driving body 22 moves backward, sealing plate 30 moves upward earlier, leaves rubber ring 13, then along with driving body 22 motion backward together, described guide rail 21 is at least two, the horizontal interval is provided with, and can limit the rotation of driving body 22 like this, is subjected to downward pressure when making sealing plate 30 move to closed position under connecting rod 23 effects, certainly can also adopt cross section is that ellipse, rectangle or other modes limit the driving body rotation, is not limited to this a kind of form.
Particularly, described guide rail 21 is the axle 21 that at least two horizontal intervals are provided with, or track or chute for matching with driving body 22 bottoms.When connecting rod 23 and sealing plate 30 were vertical, 30 of sealing plates are subjected to downward pressure, are not subjected to substantially horizontal component, and were most effective.
Wherein, described elastic member 25 is a spring 25, and connecting rod 23 middle parts are provided with bearing pin, and spring 25 is arranged on the connecting rod 23 by bearing pin; Driving body 22 bottoms are provided with protuberance 26, and the other end of spring 25 is arranged on the described protuberance 26.This kind is simple in structure, reduces production costs.
Further, the hinged pull bar 24 that is provided with in described connecting rod 23 middle parts, described pull bar 24 the other ends are connected with an end of spring 25 by bearing pin 31.The setting of pull bar 24 is rotated connecting rod 23 under the tension of spring 25 more flexible.
Wherein, described outlet 12 upper ends are provided with seal ring 13.Increase seal ring 13 enhanced leaktightness effects.
Further, described limiting stopper 15 is a Limit Bearing 15.Limit Bearing 15 is fixedlyed connected with valve body 10 by fixed block 16, uses and popularizes, and is easy to change long service life.
Particularly, described connecting rod 23 and spring 25 can be connected with driving body 22 with sealing plate 30 respectively for a plurality of.Be applicable to the valve that latus rectum is bigger, sealing plate diameter and weight also can be corresponding bigger, can adopt identical with this structure many with connecting rod 23 and 25 actings in conjunction of a plurality of spring.
The utility model is not limited to above-mentioned mode of execution, no matter do any variation on its shape or structure, every to utilize the above-mentioned sealing configuration that is used for push-pull valve all be a kind of distortion of the present utility model, all should think and drop within the utility model protection domain.
Claims (8)
1, a kind of sealing configuration that is used for push-pull valve, comprise that the upper end is provided with import and the lower end is provided with the valve body of outlet and is arranged in the valve body and the suitable sealing plate of outlet, it is characterized in that, also comprise the guide rail and the driving body that is arranged on the guide rail that are arranged between interior import of valve body and the outlet, the connecting rod two ends are hinged respectively to be arranged on driving body and the sealing plate, driving body slides in the horizontal direction along guide rail, a side that is positioned at the nearly outlet of connecting rod on the driving body is provided with elastic member, the other end of elastic member is arranged on the connecting rod, an end and the sealing plate relevant position of nearly outlet are provided with limiting stopper in the described valve body, and described connecting rod is in heeling condition under the tension of elastic member.
2, the sealing configuration that is used for push-pull valve as claimed in claim 1 is characterized in that, described guide rail is the axle that at least two horizontal intervals are provided with, or track or chute for matching with the driving body bottom.
3, the sealing configuration that is used for push-pull valve as claimed in claim 1, it is characterized in that described axle two ends are respectively arranged with the fixed block that is fixed on valve interior wall, when described driving body slides into the fixed block in nearly outlet port, described sealing plate is closed outlet, connecting rod and described sealing plate approximate vertical.
4, the sealing configuration that is used for push-pull valve as claimed in claim 1 or 2 is characterized in that, described elastic member is a spring, and the connecting rod middle part is provided with bearing pin, and spring is arranged on the connecting rod by bearing pin; The driving body bottom is provided with protuberance, and the other end of spring is arranged on the described protuberance.
5, the sealing configuration that is used for push-pull valve as claimed in claim 3 is characterized in that, the hinged pull bar that is provided with in described connecting rod middle part, and the described pull bar the other end is connected with an end of spring by bearing pin.
6, the sealing configuration that is used for push-pull valve as claimed in claim 4 is characterized in that, described outlet upper end is provided with seal ring.
7, the sealing configuration that is used for push-pull valve as claimed in claim 5 is characterized in that, described limiting stopper is a Limit Bearing.
8, the sealing configuration that is used for push-pull valve as claimed in claim 6 is characterized in that, described connecting rod and spring can be connected with sealing plate and driving body respectively for a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202336036U CN201306460Y (en) | 2008-12-19 | 2008-12-19 | Sealing structure for gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202336036U CN201306460Y (en) | 2008-12-19 | 2008-12-19 | Sealing structure for gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306460Y true CN201306460Y (en) | 2009-09-09 |
Family
ID=41098925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202336036U Expired - Lifetime CN201306460Y (en) | 2008-12-19 | 2008-12-19 | Sealing structure for gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306460Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606469A (en) * | 2012-03-06 | 2012-07-25 | 黑旋风工程机械开发有限公司 | Sliding-vane type check valve and slurry pump |
| CN102678955A (en) * | 2012-05-17 | 2012-09-19 | 东莞宏威数码机械有限公司 | Dual-baffle vacuum gate valve device |
| CN103867737A (en) * | 2014-03-17 | 2014-06-18 | 沈阳真空技术研究所 | Guide rail vacuum connection rod gate valve |
| CN105351604A (en) * | 2015-11-27 | 2016-02-24 | 四川九天真空科技股份有限公司 | Opening structure and opening method of valve under large pressure difference |
| CN105822782A (en) * | 2015-01-07 | 2016-08-03 | 新莱应材科技有限公司 | Connecting rod gate valve |
| CN109027280A (en) * | 2018-09-27 | 2018-12-18 | 北票真空设备有限公司 | A kind of vacuum gate valve |
| CN111271481A (en) * | 2020-03-31 | 2020-06-12 | 北京机电研究所有限公司 | Vacuum furnace hot gate valve suitable for high-temperature high-pressure bidirectional sealing |
| CN113104712A (en) * | 2021-03-18 | 2021-07-13 | 中铁五局集团第一工程有限责任公司 | Inclined shaft safety lifting system |
| CN115217101A (en) * | 2022-08-26 | 2022-10-21 | 陈清贵 | Pneumatic pushing sealing device and method of immersed tube cast-in-place pile machine |
| CN116576265A (en) * | 2023-07-12 | 2023-08-11 | 国仪量子(合肥)技术有限公司 | Sealing device and scanning electron microscope system |
-
2008
- 2008-12-19 CN CNU2008202336036U patent/CN201306460Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606469B (en) * | 2012-03-06 | 2015-02-25 | 黑旋风工程机械开发有限公司 | Sliding-vane type check valve and slurry pump |
| CN102606469A (en) * | 2012-03-06 | 2012-07-25 | 黑旋风工程机械开发有限公司 | Sliding-vane type check valve and slurry pump |
| CN102678955A (en) * | 2012-05-17 | 2012-09-19 | 东莞宏威数码机械有限公司 | Dual-baffle vacuum gate valve device |
| CN103867737B (en) * | 2014-03-17 | 2017-02-08 | 沈阳真空技术研究所 | Guide rail vacuum connection rod gate valve |
| CN103867737A (en) * | 2014-03-17 | 2014-06-18 | 沈阳真空技术研究所 | Guide rail vacuum connection rod gate valve |
| CN105822782A (en) * | 2015-01-07 | 2016-08-03 | 新莱应材科技有限公司 | Connecting rod gate valve |
| CN105351604A (en) * | 2015-11-27 | 2016-02-24 | 四川九天真空科技股份有限公司 | Opening structure and opening method of valve under large pressure difference |
| CN109027280A (en) * | 2018-09-27 | 2018-12-18 | 北票真空设备有限公司 | A kind of vacuum gate valve |
| CN111271481A (en) * | 2020-03-31 | 2020-06-12 | 北京机电研究所有限公司 | Vacuum furnace hot gate valve suitable for high-temperature high-pressure bidirectional sealing |
| CN113104712A (en) * | 2021-03-18 | 2021-07-13 | 中铁五局集团第一工程有限责任公司 | Inclined shaft safety lifting system |
| CN113104712B (en) * | 2021-03-18 | 2022-09-13 | 中铁五局集团第一工程有限责任公司 | Inclined shaft safety lifting system |
| CN115217101A (en) * | 2022-08-26 | 2022-10-21 | 陈清贵 | Pneumatic pushing sealing device and method of immersed tube cast-in-place pile machine |
| CN116576265A (en) * | 2023-07-12 | 2023-08-11 | 国仪量子(合肥)技术有限公司 | Sealing device and scanning electron microscope system |
| CN116576265B (en) * | 2023-07-12 | 2023-10-10 | 国仪量子(合肥)技术有限公司 | Sealing device and scanning electron microscope system |
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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: CHUANBEI VACUUM TECHNOLOGY (BEIJING) CO., LTD. Free format text: FORMER OWNER: CHUANBEI TECHNOLOGY (BEIJING) CO., LTD. Effective date: 20100409 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100409 Address after: Department of building 100083 Beijing city Chaoyang District North Beach a No. 710 room Patentee after: Chuanbei Vacuum Technology (Beijing) Co., Ltd. Address before: Department of building 100083 Beijing city Chaoyang District North Beach a No. 710 room Patentee before: Chuanbei Technology Beijing Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhang Dai Document name: Notification to Pay the Fees |
|
| ASS | Succession or assignment of patent right |
Owner name: XICHONG JIUTIAN VACUUM TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHUANBEI VACUUM TECHNOLOGY (BEIJING) CO., LTD. Effective date: 20140114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 CHAOYANG, BEIJING TO: 637260 NANCHONG, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140114 Address after: To help the Sichuan province Xichong County Industrial Park 637260 Patentee after: Xichong Jiutian Vacuum Technology Co.,Ltd. Address before: Department of building 100083 Beijing city Chaoyang District North Beach a No. 710 room Patentee before: Chuanbei Vacuum Technology (Beijing) Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: To help the Sichuan province Xichong County Industrial Park 637260 Patentee after: SICHUAN JIUTIAN VACUUM TECHNOLOGY CO., LTD. Address before: To help the Sichuan province Xichong County Industrial Park 637260 Patentee before: Xichong Jiutian Vacuum Technology Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |
|
| CX01 | Expiry of patent term |