CN207131885U - A kind of three-eccentric-butterfly-valve diaphragm seal - Google Patents
A kind of three-eccentric-butterfly-valve diaphragm seal Download PDFInfo
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- CN207131885U CN207131885U CN201721182441.3U CN201721182441U CN207131885U CN 207131885 U CN207131885 U CN 207131885U CN 201721182441 U CN201721182441 U CN 201721182441U CN 207131885 U CN207131885 U CN 207131885U
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- annular groove
- flexible material
- butterfly
- main body
- eccentric
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Abstract
The utility model discloses a kind of three-eccentric-butterfly-valve diaphragm seal, solve the problems, such as that three-eccentric-butterfly-valve diaphragm seal machining yield is low in the prior art and easy delamination reduction of service life in use.The utility model includes ring shaped metallic seal piece main body, ring shaped metallic seal piece main body circumferentially offers the annular groove from outer ring surface towards inner ring surface, circumferentially be equally spaced the fabrication hole for having two or more to be connected respectively with annular groove on the upper surface of ring shaped metallic seal piece main body, elastic flexible material is perfused with annular groove, fabrication hole is used to discharge air and excess resilient flexible material in annular groove when irrigating elastic flexible material toward in annular groove.The utility model is simple in construction, and design science is reasonable, easy to use, good sealing effect and delamination will not occur during use, handling ease is non-aging during use.
Description
Technical field
It the utility model is related to a kind of three-eccentric-butterfly-valve diaphragm seal.
Background technology
The advantages that three-eccentric-butterfly-valve is because of good seal performance, long lifespan, is widely used in various fields.Three-eccentric-butterfly-valve relies on
Two cone match sealings, in theory without interference, abrasion.But in fact, because of the reason such as mismachining tolerance between sealing pair, if
Two sealing pairs are all rigid, are difficult to accomplish tight seal.This just needs one of sealing pair to have certain bullet
Property deflection.Therefore, three-eccentric-butterfly-valve typically all uses valve seat/diaphragm seal, or the fit form of butterfly plate/diaphragm seal.Wherein, one
Side seal face is rigid (valve seat or butterfly plate), and diaphragm seal is then elastic.To realize elastic deformation, of the prior art three is inclined
Heart butterfly valve seal piece is all using sandwich as shown in Figure 4.This structure by metal material and flexible material in layer
Bonding forms.Because every piece of metallic plate is relatively thin, and flexible material does not have rigidity in itself, therefore can realize certain elasticity change
Shape.
But the bonding between the steel plate and flexible material of this diaphragm seal has larger difficulty, if bonding force is inadequate, or
, easily there is the problems such as delamination in person's glue aging.It delamination in process, can cause to scrap, reduce yield rate；Using
Delamination in journey, can cause leakage, diaphragm seal rigidity deficiency after gross distortion the problems such as, shorten the diaphragm seal life-span.
Therefore it provides a kind of three-eccentric-butterfly-valve diaphragm seal, will not occur delamination as, machining yield is high, service life length,
Become those skilled in the art's urgent problem to be solved.
Utility model content
The utility model solve technical problem be：A kind of three-eccentric-butterfly-valve diaphragm seal is provided, solves in the prior art three
Eccentric-butterfly-valve diaphragm seal machining yield it is low and in use easy delamination reduction of service life the problem of.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of three-eccentric-butterfly-valve diaphragm seal, including ring shaped metallic seal piece main body, the ring shaped metallic seal piece main body week
It is circumferentially equidistant on the upper surface of the ring shaped metallic seal piece main body to the annular groove offered from outer ring surface towards inner ring surface
The fabrication hole that two or more connects with the annular groove respectively is distributed with, resilient flexibility material is perfused with the annular groove
Material, the fabrication hole be used to discharging in the annular groove when irrigating elastic flexible material toward the annular groove in air with
Excess resilient flexible material.
Further, the flexible material is rubber or polytetrafluoroethylene (PTFE).
Compared with prior art, the utility model has the advantages that：
The utility model is simple in construction, and design science is reasonable, easy to use, good sealing effect and will not take off during use
Layer phenomenon, handling ease are non-aging during use.
Ring shaped metallic seal piece main body of the present utility model is structure as a whole, and flexible material is completely embedded into ring shaped metallic seal
In piece main body, conventional three-eccentric-butterfly-valve diaphragm seal delamination problems are thoroughly avoided, yield rate when improving production and using the longevity
Life.
The utility model sets annular groove in ring shaped metallic seal piece main body, and its upper surface is circumferentially disposed and ring
The fabrication hole of connected in star connection, when carrying out the perfusion of flexible material, by fabrication hole, effectively it can discharge in annular groove
Gas and unnecessary flexible material, ensure that encapsulating is full in annular groove.
The utility model can be by controlling the groove width and groove depth of annular groove, to realize the overhanging of different metal material
Amount, reach the elastic deformation amount of demand, while ensure there is enough intensity.
Brief description of the drawings
Accompanying drawing 1 is the utility model structure diagram.
Accompanying drawing 2 is the utility model fabrication hole partial enlargement portion.
Accompanying drawing 3 is that this reality has type interfacial structure schematic diagram.
Accompanying drawing 4 is prior art three-eccentric-butterfly-valve diaphragm seal structural representation.
Wherein, it is entitled corresponding to reference：1- ring shaped metallic seal pieces main body, 2- annular grooves, 3- fabrication holes, b-
Groove width, t- groove depths.
Embodiment
The utility model is described in further detail with embodiment for explanation below in conjunction with the accompanying drawings, and mode of the present utility model includes
But it is not limited only to following examples.
Embodiment 1
As Figure 1-3, a kind of three-eccentric-butterfly-valve diaphragm seal provided by the utility model, simple in construction, design science is closed
Reason, it is easy to use, good sealing effect and delamination will not occur during use, handling ease is non-aging during use.This
Utility model includes ring shaped metallic seal piece main body 1, and the ring shaped metallic seal piece main body 1 is circumferential to be offered from outer ring surface direction
The annular groove 2 of inner ring surface, being circumferentially equally spaced on the upper surface of the ring shaped metallic seal piece main body 1 has two or more difference
The fabrication hole 3 connected with the annular groove 2, elastic flexible material is perfused with the annular groove 2, the fabrication hole 3 is used
It is flexible in discharging air and excess resilient in the annular groove 2 when toward perfusion elastic flexible material in the annular groove 2
Material, the flexible material are rubber or polytetrafluoroethylene (PTFE).
Ring shaped metallic seal piece main body 1 of the present utility model is structure as a whole, and elastic flexible material is completely embedded into annular gold
Belong in diaphragm seal main body 1, thoroughly avoid conventional three-eccentric-butterfly-valve diaphragm seal delamination problems, yield rate when improving production and
Service life.The utility model sets annular groove 2 in ring shaped metallic seal piece main body 1, and circumferentially disposed in its upper surface
The fabrication hole 3 connected with annular groove 2, in production, elastic flexible material is fed into groove 2, can be with by fabrication hole 3
Gas and excess resilient flexible material effectively in discharge annular groove 2, ensure that encapsulating is full in annular groove 2.Rubber is poly-
Tetrafluoroethene is injected into after annular groove 2 annularly.Diaphragm seal working face is carried out again after completing the perfusion of elastic flexible material
Processing.
The utility model can be by controlling the groove width b and groove depth t of annular groove 2, to realize the outstanding of different metal material
The amount of stretching, reach the elastic deformation amount of demand, while ensure there is enough intensity.
The utility model conceive marvellous, simple production process, low production cost, can batch production large-scale production, be suitable to
Application is widelyd popularize in the art.
Above-described embodiment is only one of preferred embodiment of the present utility model, be should not be taken to limit of the present utility model
Protection domain, as long as in body design thought of the present utility model and that mentally makes have no the change of essential meaning or profit
Color, the technical problem that it is solved is still consistent with the utility model, should be included in the scope of protection of the utility model
Within.
Claims (2)
- A kind of 1. three-eccentric-butterfly-valve diaphragm seal, it is characterised in that：Including ring shaped metallic seal piece main body (1), the endless metal Diaphragm seal main body (1) circumferentially offers the annular groove (2) from outer ring surface towards inner ring surface, the ring shaped metallic seal piece main body (1) be circumferentially equally spaced the fabrication hole (3) for having two or more to be connected respectively with the annular groove (2) on upper surface, described Elastic flexible material is perfused with annular groove (2), the fabrication hole (3) is used to irrigate bullet toward the annular groove (2) is interior The interior air of the annular groove (2) and excess resilient flexible material are discharged during property flexible material.
- A kind of 2. three-eccentric-butterfly-valve diaphragm seal according to claim 1, it is characterised in that：The flexible material be rubber or Polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721182441.3U CN207131885U (en) | 2017-09-15 | 2017-09-15 | A kind of three-eccentric-butterfly-valve diaphragm seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721182441.3U CN207131885U (en) | 2017-09-15 | 2017-09-15 | A kind of three-eccentric-butterfly-valve diaphragm seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207131885U true CN207131885U (en) | 2018-03-23 |
Family
ID=61638818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721182441.3U Active CN207131885U (en) | 2017-09-15 | 2017-09-15 | A kind of three-eccentric-butterfly-valve diaphragm seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207131885U (en) |
-
2017
- 2017-09-15 CN CN201721182441.3U patent/CN207131885U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 5 high tech Zone Gaopeng road in Chengdu city of Sichuan Province in 610041 Patentee after: Haohua Chemical Technology Group Co.,Ltd. Address before: No. 5 high tech Zone Gaopeng road in Chengdu city of Sichuan Province in 610041 Patentee before: SICHUAN TIANYI SCIENCE AND TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200701 Address after: No. 5 high tech Zone Gaopeng road in Chengdu city of Sichuan Province in 610041 Patentee after: SOUTHWEST RESEARCH & DESIGN INSTITUTE OF CHEMICAL INDUSTRY Address before: No. 5 high tech Zone Gaopeng road in Chengdu city of Sichuan Province in 610041 Patentee before: Haohua Chemical Technology Group Co.,Ltd. |