CN204344950U - A kind of high-sealing butterfly valve - Google Patents
A kind of high-sealing butterfly valve Download PDFInfo
- Publication number
- CN204344950U CN204344950U CN201420742496.5U CN201420742496U CN204344950U CN 204344950 U CN204344950 U CN 204344950U CN 201420742496 U CN201420742496 U CN 201420742496U CN 204344950 U CN204344950 U CN 204344950U
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- valve
- valve body
- plate
- valve plate
- shaft
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of high-sealing butterfly valve, comprise handle, valve body and valve plate, described valve interior wall suit valve seat, silicon sulfide glue-line between this valve seat and valve body, is sealed and installed with valve plate in this valve seat, vertically installs a valve shaft in this valve plate, the upper end portion of this valve shaft is provided with handle, to should valve shaft underpart body base install end cap, the upper-end surface of described end cap is fixedly mounted with alignment pin, and the top of this alignment pin is coaxially inlaid in valve shaft underpart.This butterfly valve ensure that the coaxality of the upper and lower end of valve shaft by the setting of alignment pin, and prevents valve plate from moving down under gravity, improves the sealability of valve; Avoid medium to hang on valve plate by guiding fin, improve medium by fluid ability during valve body; Improve manufacturing efficiency by upper and lower formula valve body structure, reduce costs; The utility model structure is simple, design science rationally, be skillfully constructed, sealability is high, cost is low, has the value of wide popularization and application.
Description
Technical field
The utility model belongs to valve manufacture field, especially a kind of high-sealing butterfly valve.
Background technique
Butterfly valve is the simple modulating valve of a kind of structure, and valve plate rotates a kind of valve reaching open and close around valve shaft, and on pipeline, main rising is cut off and throttling action.Butterfly valve open-shut device is a discoidal valve plate, rotates in valve body around the axis of himself, thus reaches the object opening and closing or regulate.
In the process that valve uses, often there is following problem:
1, butterfly plate of the prior art is in the process used, owing to operating for a long time, along with the prolongation of service time, under gravity with under the impact of other factors, valve plate can move down, thus greatly can reduce the sealing of butterfly valve, bring great inconvenience to the use of user, also can give simultaneously and use enterprise to cause economic loss.
2, when the medium in pipeline is by butterfly valve, especially viscous medium, often can hang on dish plate, affects the flow velocity of whole pipeline.
3, valve body is front and back two-part compositions, and linked together by the radially-arranged multiple screw of circumference, the mounting structure of this valve body is loaded down with trivial details, wastes a large amount of manpower.
4, when valve plate rotates and valve seat produce larger torsion, thus reduce sealability.
Through retrieval, find one section of patent documentation relevant to this patent content, publication number is the Chinese patent of CN203906830U, which disclose a kind of butterfly valve of high leak tightness, its drip irrigation device is that described annular boss outer side wall is provided with some mounting holes, and some mounting hole uniform circular are distributed in annular boss outer side wall, spring is provided with in described mounting hole, described its length is greater than the degree of depth of mounting hole, spring one end and mounting hole diapire inconsistent, the inwall of the other end and seal ring is inconsistent.
By contrast, above-mentioned patent publication us and present patent application have relatively big difference in technological scheme.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides that a kind of structure is simple, easy for installation, sealability is high, corrosion resistant high-sealing butterfly valve.
Scheme of the present utility model is achieved in that
A kind of high-sealing butterfly valve, comprise handle, valve body and valve plate, described valve interior wall suit valve seat, silicon sulfide glue-line between this valve seat and valve body, is sealed and installed with valve plate in this valve seat, vertically installs a valve shaft in this valve plate, the upper end portion of this valve shaft is provided with handle, to should valve shaft underpart body base install end cap, the upper-end surface of described end cap is fixedly mounted with alignment pin, and the top of this alignment pin is coaxially inlaid in valve shaft underpart;
The equal integral transverse in forward and backward two sides of described valve plate is shaped with upper and lower spaced many guiding fins.
And the valve seat inner edge that described valve seat contacts with valve plate is the spheric structure caved inward.
And described valve body comprises upper valve body and lower valve body, and its structure is: the top connecting handle of this upper valve body, and this upper valve body underpart is semicircle arcuation and the arranged on left and right sides of its outer rim is integrally shaped with engaging lug; Described lower valve body is semicircle arcuation, and the upper end portion outer rim arranged on left and right sides of this lower valve body is shaped with engaging lug equally, is linked together by upper and lower valve body by engaging lug.
And the inner edge of described upper and lower valve body is shaped with an annular groove.
Advantage of the present utility model and good effect are:
This butterfly valve ensure that the coaxality of the upper and lower end of valve shaft by the setting of alignment pin, and prevents valve plate from moving down under gravity, improves the sealability of valve; Avoid medium to hang on valve plate by guiding fin, improve medium by fluid ability during valve body; Improve manufacturing efficiency by upper and lower formula valve body structure, reduce costs; Make spheric structure by valve seat inner edge, reduce moment of torsion when valve plate rotates, improve the sealability of sealing valve plate.The utility model structure is simple, design science rationally, be skillfully constructed, sealability is high, cost is low, has the value of wide popularization and application.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is the I portion enlarged view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail.
A kind of high-sealing butterfly valve, as shown in Figure 1, comprise handle 1, valve body and valve plate 4, described valve interior wall suit valve seat 3, silicon sulfide glue-line 6 between this valve seat and valve body, is provided with valve plate in this valve seat, vertically installs a valve shaft 12 in this valve plate, the upper end portion of this valve shaft is provided with handle, to should valve shaft underpart body base install end cap 11.
Innovative point of the present utility model is:
1, the upper-end surface of described end cap is fixedly mounted with alignment pin 13, as shown in Figure 3, the top of this alignment pin is coaxially inlaid in valve shaft underpart, and this structure not only ensure that the coaxality of the upper and lower end of valve shaft, and prevent valve plate from moving down under gravity, improve the sealability of valve.
2, two equal integral transverses in side of described valve plate are shaped with upper and lower spaced many guiding fins 10, and this guiding fin has the function of left hand material flowing, avoids medium to hang over valve plate side thus affects its flow velocity.
3, the valve seat inner edge that described valve seat contacts with valve plate is sphere 7 structure caved inward, and as shown in Figure 2, its effect reduces moment of torsion when valve plate rotates, and improves the sealability of sealing valve plate.
4, described valve body comprises upper valve body 2 and lower valve body 9, and its structure is: the top connecting handle of this upper valve body, and this upper valve body underpart is semicircle arcuation and the arranged on left and right sides of its outer rim is integrally shaped with engaging lug 5; Described lower valve body is semicircle arcuation, and the upper end portion outer rim arranged on left and right sides of this lower valve body is shaped with engaging lug equally, is linked together by upper and lower valve body by engaging lug.This mounting structure only needs two screws can complete the connection of valve body, not only improves installation efficiency, also saves cost simultaneously.
5, the inner edge of described upper and lower valve body is shaped with an annular groove 8, its objective is the thickness having thickeied layer of silica gel, improves valve seat elasticity, and then improves sealability.
This butterfly valve ensure that the coaxality of the upper and lower end of valve shaft by the setting of alignment pin, and prevents valve plate from moving down under gravity, improves the sealability of valve; Avoid medium to hang on valve plate by guiding fin, improve medium by fluid ability during valve body; Improve manufacturing efficiency by upper and lower formula valve body structure, reduce costs; Make spheric structure by valve seat inner edge, reduce moment of torsion when valve plate rotates, improve the sealability of sealing valve plate.The utility model structure is simple, design science rationally, be skillfully constructed, sealability is high, cost is low, has the value of wide popularization and application.
It is emphasized that; embodiment described in the utility model is illustrative; instead of it is determinate; therefore the utility model comprises the embodiment be not limited to described in embodiment; every other mode of executions drawn according to the technical solution of the utility model by those skilled in the art, belong to the scope of the utility model protection equally.
Claims (4)
1. a high-sealing butterfly valve, comprise handle, valve body and valve plate, described valve interior wall suit valve seat, silicon sulfide glue-line between this valve seat and valve body, is sealed and installed with valve plate in this valve seat, vertically installs a valve shaft in this valve plate, the upper end portion of this valve shaft is provided with handle, to should valve shaft underpart body base install end cap, it is characterized in that: the upper-end surface of described end cap is fixedly mounted with alignment pin, the top of this alignment pin is coaxially inlaid in valve shaft underpart;
The equal integral transverse in forward and backward two sides of described valve plate is shaped with upper and lower spaced many guiding fins.
2. high-sealing butterfly valve according to claim 1, is characterized in that: the valve seat inner edge that described valve seat contacts with valve plate is the spheric structure caved inward.
3. high-sealing butterfly valve according to claim 1, it is characterized in that: described valve body comprises upper valve body and lower valve body, its structure is: the top connecting handle of this upper valve body, and this upper valve body underpart is semicircle arcuation and the arranged on left and right sides of its outer rim is integrally shaped with engaging lug; Described lower valve body is semicircle arcuation, and the upper end portion outer rim arranged on left and right sides of this lower valve body is shaped with engaging lug equally, is linked together by upper and lower valve body by engaging lug.
4. high-sealing butterfly valve according to claim 3, is characterized in that: the inner edge of described upper and lower valve body is shaped with an annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742496.5U CN204344950U (en) | 2014-12-01 | 2014-12-01 | A kind of high-sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742496.5U CN204344950U (en) | 2014-12-01 | 2014-12-01 | A kind of high-sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344950U true CN204344950U (en) | 2015-05-20 |
Family
ID=53228219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420742496.5U Expired - Fee Related CN204344950U (en) | 2014-12-01 | 2014-12-01 | A kind of high-sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344950U (en) |
-
2014
- 2014-12-01 CN CN201420742496.5U patent/CN204344950U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20161201 |