CN204704399U - A kind of multi-sealed Butterfly valve with liner - Google Patents
A kind of multi-sealed Butterfly valve with liner Download PDFInfo
- Publication number
- CN204704399U CN204704399U CN201520365251.XU CN201520365251U CN204704399U CN 204704399 U CN204704399 U CN 204704399U CN 201520365251 U CN201520365251 U CN 201520365251U CN 204704399 U CN204704399 U CN 204704399U
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- valve
- ring
- seat
- dish plate
- sleeve
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Abstract
The utility model discloses a kind of multi-sealed Butterfly valve with liner, valve seat is located in valve body, and valve shaft passes from valve body top, and valve shaft lower end connects dish plate, and dish plate is located in valve seat; Between valve shaft and valve body, be provided with chamber, in chamber, be provided with axle sleeve, axle sleeve and valve body and valve shaft interference fit; Be provided with the elasticity disc spring of annular in axle sleeve lower end, elasticity disc spring lower end is provided with conical sealing seat, and in conical sealing seat, be provided with pressure block and O type seal ring, conical sealing seat lower end is provided with elastic washer; Ring-shaped sealing sleeve is provided with between valve seat and valve shaft, ring-shaped sealing sleeve, between valve seat and dish plate, chamber is provided with dish plate lining, in dish plate lining, be provided with polytetrafluoroethylsealed sealed ring, be polytetrafluoroethylsealed sealedly located on outside ring-shaped sealing sleeve, valve seat inner edge is located between ring-shaped sealing sleeve and conical sealing seat.The utility model structure is simple, easy to use, by triple seal structure, significantly improves the sealability of Butterfly valve with liner, increases the service life.
Description
Technical field
The utility model relates to valve technology field, more particularly, relates to a kind of multi-sealed Butterfly valve with liner.
Background technique
Butterfly valve is Flap valve again, it is the simple modulating valve of a kind of structure, the butterfly valve that can be used for the switch control rule of low pressure pipeline medium refers to that closure member (flap or butterfly plate) is disk, rotate a kind of valve reaching open and close around valve shaft, valve can be used for the flowing controlling all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.On pipeline, main rising is cut off and throttling action.Butterfly valve open-shut device is a discoidal butterfly plate, rotates in valve body around the axis of himself, thus reaches the object opening and closing or regulate.
The shortcoming of existing known butterfly valve is mainly that sealing is not good, due to keying that valve is frequent in using process, valve rod place of a specified duration easily permeates, and is absolutely unsafe for strong acid, highly basic medium, and user also generally reflects the shortcomings such as the operational torque of valve is larger simultaneously.
Therefore, owing to there is above-mentioned technological deficiency in prior art, be those skilled in that art's technical problems urgently to be resolved hurrily.
Model utility content
The purpose of this utility model, for providing a kind of multi-sealed Butterfly valve with liner, is intended to the problem solving the butterfly valve seal poor performance existed in prior art, by triple seal structure, significantly improves the sealability of butterfly valve.
For achieving the above object, the utility model provides following technological scheme:
A kind of multi-sealed Butterfly valve with liner, mainly comprise valve body, valve shaft, dish plate, valve seat, axle sleeve, elasticity disc spring, pressure block, O type seal ring, conical sealing seat, elastic washer, dish plate lining, polytetrafluoroethylsealed sealed ring and ring-shaped sealing sleeve, described valve seat is located in described valve body, described valve shaft passes from described valve body top, described valve shaft lower end connects described dish plate, and described dish plate is located in described valve seat; Between described valve shaft and described valve body, be provided with chamber, in described chamber, be provided with axle sleeve, described axle sleeve and described valve body and described valve shaft interference fit; Be provided with the elasticity disc spring of annular in described axle sleeve lower end, described elasticity disc spring lower end is provided with conical sealing seat, and in described conical sealing seat, be provided with pressure block and O type seal ring, described conical sealing seat lower end is provided with elastic washer; Ring-shaped sealing sleeve is provided with between described valve seat and valve shaft, described ring-shaped sealing sleeve, between valve seat and dish plate, chamber is provided with dish plate lining, polytetrafluoroethylsealed sealed ring is provided with in described dish plate lining, describedly polytetrafluoroethylsealed sealedly be located on outside described ring-shaped sealing sleeve, described valve seat inner edge is located between described ring-shaped sealing sleeve and described conical sealing seat.
Preferably, described O type seal ring is located at described pressure block lower end.
Usefulness of the present utility model is:
First layer sealing is via the spherical arcuate surface transmission pre-stressed power of elasticity disc spring to lining valve plate spindle nose;
Second layer sealing is in the groove that the upper and lower hub of valve plate processes, add the flexible polytetrafluoroethylsealed sealed ring of band, seal ring is coated on valve base surface by pure PTFE material, in valve assembly process, polytetrafluoroethylsealed sealed ring is subject to valve plate and valve seat compresses, and be squeezed, produce upwards downward pressure at valve plate and valve base surface, thus play sealing;
Third layer sealing is the cooperation adopting pressure block and O type seal ring in the middle part of valve rod, the extruding in elasticity disc spring and valve assembly process, to axially transmitting pre-stressed power, making O type seal the tight valve seat of lottery of lotteries and protruding lining.
The utility model structure is simple, easy to use, by triple seal structure, significantly improves the sealability of Butterfly valve with liner, increases the service life.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is sectional view of the present utility model;
In figure: 1 is axle sleeve; 2 is elasticity disc spring; 3 is pressure block; 4 is O type seal ring; 5 is conical sealing seat; 6 is elastic washer; 7 is valve seat; 8 is dish plate lining; 9 is polytetrafluoroethylsealed sealed ring; 10 is ring-shaped sealing sleeve; 11 is valve body; 12 is valve shaft; 13 is dish plate.
Embodiment
The utility model provides a kind of multi-sealed Butterfly valve with liner, and structure is simple, easy to use, by triple seal structure, significantly improves the sealability of Butterfly valve with liner, increases the service life.
Below in conjunction with the accompanying drawing in the utility model embodiment, carry out clear and detailed description to the technological scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of multi-sealed Butterfly valve with liner as illustrated in fig. 1 and 2, mainly comprise valve body 11, valve shaft 12, dish plate 13, valve seat 7, axle sleeve 1, elasticity disc spring 2, pressure block 3, O type seal ring 4, conical sealing seat 5, elastic washer 6, dish plate lining 8, polytetrafluoroethylsealed sealed ring 9 and ring-shaped sealing sleeve 10, described valve seat 7 is located in described valve body 11, described valve shaft 12 passes from described valve body 11 top, described valve shaft 12 lower end connects described dish plate 13, and described dish plate 13 is located in described valve seat 7; Between described valve shaft 12 and described valve body 11, be provided with chamber, in described chamber, be provided with axle sleeve 1, described axle sleeve 1 and described valve body 11 and described valve shaft 12 interference fit; Be provided with the elasticity disc spring 2 of annular in described axle sleeve 1 lower end, described elasticity disc spring 2 lower end is provided with conical sealing seat 5, is provided with pressure block 3 and O type seal ring 4 in described conical sealing seat 5, and described conical sealing seat 5 lower end is provided with elastic washer 6; Ring-shaped sealing sleeve 10 is provided with between described valve seat 7 and valve shaft 12, described ring-shaped sealing sleeve 10, between valve seat 7 and dish plate 13, chamber is provided with dish plate lining 8, polytetrafluoroethylsealed sealed ring 9 is provided with in described dish plate lining 8, described polytetrafluoroethylsealed sealed ring 9 is located at outside described ring-shaped sealing sleeve 10, and described valve seat 7 inner edge is located between described ring-shaped sealing sleeve 10 and described conical sealing seat 5.
Further, described O type seal ring 4 is located at described pressure block 3 lower end.
The beneficial effects of the utility model are mainly reflected in triple seal close structure and coordinate, and significantly improve the sealability of Butterfly valve with liner, and it is pass through that its structure realizes:
First layer sealing is via the spherical arcuate surface transmission pre-stressed power of elasticity disc spring to lining valve plate spindle nose;
Second layer sealing is in the groove that the upper and lower hub of valve plate processes, add the flexible polytetrafluoroethylsealed sealed ring of band, seal ring is coated on valve base surface by pure PTFE material, in valve assembly process, polytetrafluoroethylsealed sealed ring is subject to valve plate and valve seat compresses, and be squeezed, produce upwards downward pressure at valve plate and valve seat 7 surface, thus play sealing;
Third layer sealing is the cooperation adopting pressure block and O type seal ring in the middle part of valve rod, the extruding in elasticity disc spring and valve assembly process, to axially transmitting pre-stressed power, making O type seal the tight valve seat of lottery of lotteries and protruding lining.
By close-fitting triple seal structure, can form certain matching relationship each other, three's tight fit, sealability significantly strengthens, and further enhancing its working life.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.Be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. a multi-sealed Butterfly valve with liner, it is characterized in that: mainly comprise valve body, valve shaft, dish plate, valve seat, axle sleeve, elasticity disc spring, pressure block, O type seal ring, conical sealing seat, elastic washer, dish plate lining, polytetrafluoroethylsealed sealed ring and ring-shaped sealing sleeve, described valve seat is located in described valve body, described valve shaft passes from described valve body top, described valve shaft lower end connects described dish plate, and described dish plate is located in described valve seat; Between described valve shaft and described valve body, be provided with chamber, in described chamber, be provided with axle sleeve, described axle sleeve and described valve body and described valve shaft interference fit; Be provided with the elasticity disc spring of annular in described axle sleeve lower end, described elasticity disc spring lower end is provided with conical sealing seat, and in described conical sealing seat, be provided with pressure block and O type seal ring, described conical sealing seat lower end is provided with elastic washer; Ring-shaped sealing sleeve is provided with between described valve seat and valve shaft, described ring-shaped sealing sleeve, between valve seat and dish plate, chamber is provided with dish plate lining, polytetrafluoroethylsealed sealed ring is provided with in described dish plate lining, describedly polytetrafluoroethylsealed sealedly be located on outside described ring-shaped sealing sleeve, described valve seat inner edge is located between described ring-shaped sealing sleeve and described conical sealing seat.
2. Butterfly valve with liner multi-sealed as claimed in claim 1, is characterized in that: described O type seal ring is located at described pressure block lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520365251.XU CN204704399U (en) | 2015-06-01 | 2015-06-01 | A kind of multi-sealed Butterfly valve with liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520365251.XU CN204704399U (en) | 2015-06-01 | 2015-06-01 | A kind of multi-sealed Butterfly valve with liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204704399U true CN204704399U (en) | 2015-10-14 |
Family
ID=54284018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520365251.XU Expired - Fee Related CN204704399U (en) | 2015-06-01 | 2015-06-01 | A kind of multi-sealed Butterfly valve with liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204704399U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289142A (en) * | 2017-08-08 | 2017-10-24 | 河北奥磊阀业制造有限公司 | High leakproofness anti-corrosion new material steel lining butterfly valve |
| CN110486485A (en) * | 2019-09-20 | 2019-11-22 | 天津银河阀门有限公司 | A kind of centre-pivoted butterfly valve valve board assembly and centre-pivoted butterfly valve |
-
2015
- 2015-06-01 CN CN201520365251.XU patent/CN204704399U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289142A (en) * | 2017-08-08 | 2017-10-24 | 河北奥磊阀业制造有限公司 | High leakproofness anti-corrosion new material steel lining butterfly valve |
| CN110486485A (en) * | 2019-09-20 | 2019-11-22 | 天津银河阀门有限公司 | A kind of centre-pivoted butterfly valve valve board assembly and centre-pivoted butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20160601 |