CN202091528U - Flexibly sealed butterfly valve - Google Patents
Flexibly sealed butterfly valve Download PDFInfo
- Publication number
- CN202091528U CN202091528U CN2011201756709U CN201120175670U CN202091528U CN 202091528 U CN202091528 U CN 202091528U CN 2011201756709 U CN2011201756709 U CN 2011201756709U CN 201120175670 U CN201120175670 U CN 201120175670U CN 202091528 U CN202091528 U CN 202091528U
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- Prior art keywords
- valve
- butterfly
- soft sealing
- butterfly plate
- valve body
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Abstract
The utility model discloses a flexibly sealed butterfly valve. The flexibly sealed butterfly valve comprises a valve body, a valve base and a butterfly plate which are positioned inside the valve body, a valve rod, a sealing device, and a driving device which is connected with the valve rod, wherein a shaft sleeve is arranged between the valve rod and the valve body; the valve rod is fixedly connected with the butterfly plate and part of the valve rod extends out of the valve body; a sealing ring which corresponds to the valve base in position is installed on the circumferential side of the butterfly plate; the section of the sealing ring has a shape of an equilateral triangle; and the sealing surface of the valve base is lip-shaped and forms lip-shaped sealing with the sealing ring. The flexibly sealed butterfly valve has the advantages of good sealing performance, long service life and the like; excellent sealing performance can be kept even when the flexibly sealed butterfly valve is frequently opened; and the flexibly sealed butterfly valve is particularly applicable to a working environment in which the flexibly sealed butterfly valve is required to be opened frequently.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of soft sealing butterfly valve with excellent sealability.
Background technique
Butterfly valve is to rotate a kind of valve of realizing keying around valve rod axis by butterfly plate, its angle of swing is between 0 ° to 90 °, and rotating 0 ° is full-shut position, and half-twist is a full-gear, have characteristics such as simple in structure, that volume is little, keying is rapid, and have good fluid control characteristic.Two kinds of seal form of flexible soft seal of butterfly valve and metal hard-sealing: the seal ring of soft seal can be embedded on the valve body or be attached to butterfly plate periphery, good seal performance; The valve of hard sealing is generally long than the life of valve of soft seal, can be applicable to the working environment that temperature is higher, but sealability is not as soft seal.Though soft seal has excellent sealability, closing of butterfly valve is sealing surface extruding valve seat by the butterfly plate circumference, makes valve seat produce resiliently deformable and guarantees butterfly valve seal; During the butterfly plate standard-sized sheet, butterfly plate and sealing surface of seat gap are too small, and frequent keying makes the sealing material serious wear between valve seat and the butterfly plate, the working life of having reduced valve.
Therefore, how to reduce the wearing and tearing of sealing material, guarantee the sealing effect of butterfly valve, and prolong the working life of valve, become the problem that needs solution.
The model utility content
For solving the problems of the technologies described above, the utility model provides a kind of soft sealing butterfly valve, to have improved the sealing effect of valve, has prolonged the life-span of valve.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of soft sealing butterfly valve, comprise valve body, be positioned at the valve seat of described valve body and butterfly plate, valve rod, seal arrangement, and the drive unit that is connected with described valve rod, be provided with axle sleeve between described valve rod and the described valve body, described valve rod is fixedlyed connected with described butterfly plate and part is stretched out outside the described valve body, the circumference of described butterfly plate is equipped with and the corresponding seal ring in described valve seat position, the section of described seal ring is equilateral triangle, the sealing surface of described valve seat is a lip formula configuration, and forms lip seal with described seal ring.
Preferably, be provided with back-up ring between described axle sleeve and the described butterfly plate.
Preferably, the design of the outside of described valve seat has the spiral waterline, and inserts is installed.
Preferably, on the described inserts there be and the corresponding spiral waterline of the spiral waterline of described valve seat design.
Preferably, be provided with retaining ring between described inserts and the described valve body.
Preferably, described valve rod and described butterfly plate are eccentric design.
Preferably, the material of described valve seat is a teflon.
Preferably, the material of described seal ring is a teflon.
Pass through technique scheme, the soft sealing butterfly valve that the utility model provides, because the design of the lip seal between its butterfly plate and the valve seat, when valve opening and closing, the extruding or the disengaging of the seal ring of butterfly plate circumference and lip formula valve seat are the process that gradually goes out or be fade-in, thereby reduced the wearing and tearing between valve seat and the butterfly plate, guaranteed the sealability of valve, and prolonged the working life of valve.
Description of drawings
In order to be illustrated more clearly in the technological scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below.
Fig. 1 is the structural representation of the disclosed a kind of soft sealing butterfly valve of the utility model embodiment;
Fig. 2 is the generalized section of the seal ring of the disclosed a kind of soft sealing butterfly valve of the utility model embodiment;
Fig. 3 is the two eccentric design diagram of the disclosed a kind of soft sealing butterfly valve of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described.
The utility model provides a kind of soft sealing butterfly valve, has avoided effectively having prolonged the life-span of valve owing to the mutual leakage of wearing and tearing and causing between the valve seal parts.
According to Fig. 1, the disclosed soft sealing butterfly valve of the utility model, comprise valve body 11, be positioned at the valve seat 12 and butterfly plate 14, valve rod 13, seal arrangement of valve body 11, and the drive unit that is connected with valve rod 13, be provided with axle sleeve 15 between valve rod 13 and the valve body 11, valve rod 13 is fixedlyed connected with butterfly plate 14 and part is stretched out outside the valve body 11, the circumference of butterfly plate 14 is equipped with and the corresponding seal ring 21 in valve seat 12 positions, the section of seal ring 21 is equilateral triangle, the sealing surface of valve seat 12 is a lip formula configuration, and forms lip seal with seal ring 21.
Compared to existing technology, the soft sealing butterfly valve that the utility model provides, because the design of the lip seal between its butterfly plate 14 and the valve seat 12, when valve opening and closing, the seal ring 21 of butterfly plate 14 circumferences is the process that gradually goes out or be fade-in with the extruding or the disengaging of lip formula valve seat 12, thereby reduced the wearing and tearing between valve seat 12 and the butterfly plate 14, guaranteed the sealability of valve.Wherein, be provided with back-up ring 16 between axle sleeve 15 and the butterfly plate 14, to prevent axle sleeve 15 slippage in the valve opening and closing process; The outside design of valve seat 12 has the spiral waterline, and inserts 17 is installed, on the inserts 17 there be and the corresponding spiral waterline of the spiral waterline of valve seat 12 design, and be provided with retaining ring 18 between inserts 17 and the valve body 11, the setting of this group has prevented coming off of valve seat 12 in the valve using process, and has further guaranteed the sealing of valve; Valve seat 12 adopts the teflon with excellent wear-corrosion resistance with the material of seal ring 21, and utilize the self-lubricating function of teflon, improved the wear-resisting property of valve effectively, certainly, can also select for use other to have the material of excellent wear-resisting property, such as polypropylene etc., this is not limited; According to Fig. 3, valve rod 13 is eccentric design (eccentric angle is too small, does not indicate among the figure) with butterfly plate 14, has further reduced the wearing and tearing between valve seat 12 and the butterfly plate 14.
Therefore, the lip seal that this model utility is special, and two eccentric designs etc. all reduced the valve seal parts wearing and tearing, make this butterfly valve have advantages such as good seal performance, life of valve are long, practicability is splendid.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. soft sealing butterfly valve, comprise valve body, be positioned at the valve seat of described valve body and butterfly plate, valve rod, seal arrangement, and the drive unit that is connected with described valve rod, be provided with axle sleeve between described valve rod and the described valve body, described valve rod is fixedlyed connected with described butterfly plate and part is stretched out outside the described valve body, the circumference of described butterfly plate is equipped with and the corresponding seal ring in described valve seat position, it is characterized in that, the section of described seal ring is equilateral triangle, the sealing surface of described valve seat is a lip formula configuration, and forms lip seal with described seal ring.
2. a kind of soft sealing butterfly valve according to claim 1 is characterized in that, is provided with back-up ring between described axle sleeve and the described butterfly plate.
3. a kind of soft sealing butterfly valve according to claim 1 is characterized in that, the outside design of described valve seat has the spiral waterline, and inserts is installed.
4. a kind of soft sealing butterfly valve according to claim 3 is characterized in that, on the described inserts there is and the corresponding spiral waterline of the spiral waterline of described valve seat design.
5. according to claim 1 or 4 described a kind of soft sealing butterfly valves, it is characterized in that, be provided with retaining ring between described inserts and the described valve body.
6. a kind of soft sealing butterfly valve according to claim 1 is characterized in that, described valve rod and described butterfly plate are eccentric design.
7. a kind of soft sealing butterfly valve according to claim 1 is characterized in that, the material of described valve seat is a teflon.
8. a kind of soft sealing butterfly valve according to claim 1 is characterized in that, the material of described seal ring is a teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201756709U CN202091528U (en) | 2011-05-30 | 2011-05-30 | Flexibly sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201756709U CN202091528U (en) | 2011-05-30 | 2011-05-30 | Flexibly sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202091528U true CN202091528U (en) | 2011-12-28 |
Family
ID=45366596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201756709U Expired - Fee Related CN202091528U (en) | 2011-05-30 | 2011-05-30 | Flexibly sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202091528U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015024468A1 (en) * | 2013-08-20 | 2015-02-26 | 山东莱德机械有限公司 | Self-sealing butterfly valve |
| CN109386620A (en) * | 2018-11-14 | 2019-02-26 | 上海鸿研物流技术有限公司 | Butterfly valve |
| WO2020168617A1 (en) * | 2019-02-21 | 2020-08-27 | 江苏神通阀门股份有限公司 | Ultra-low-temperature butterfly valve |
-
2011
- 2011-05-30 CN CN2011201756709U patent/CN202091528U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015024468A1 (en) * | 2013-08-20 | 2015-02-26 | 山东莱德机械有限公司 | Self-sealing butterfly valve |
| US9995399B2 (en) | 2013-08-20 | 2018-06-12 | Shandong Lede Machinery Co., Ltd. | Self-sealing butterfly valve |
| CN109386620A (en) * | 2018-11-14 | 2019-02-26 | 上海鸿研物流技术有限公司 | Butterfly valve |
| WO2020168617A1 (en) * | 2019-02-21 | 2020-08-27 | 江苏神通阀门股份有限公司 | Ultra-low-temperature butterfly 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: SUZHOU KEDI FLUID CONTROL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: FLUOROSEAL SPECIALTY VALVES (SUZHOU) CO., LTD. Effective date: 20120328 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215101 SUZHOU, JIANGSU PROVINCE TO: 215100 SUZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120328 Address after: Suzhou City, Jiangsu province 215100 Jinfeng Road No. 1319 Patentee after: SUZHOU KEDI FLUID CONTROL EQUIPMENT CO., LTD. Address before: Suzhou City, Jiangsu province 215101 Jinfeng Road No. 139 Patentee before: FluoroSeal Special Valves (Suzhou) Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhu Qiaoming Document name: Notification of Passing Examination on Formalities |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20200530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |