CN205388158U - Self -sealing stop valve - Google Patents
Self -sealing stop valve Download PDFInfo
- Publication number
- CN205388158U CN205388158U CN201620092835.9U CN201620092835U CN205388158U CN 205388158 U CN205388158 U CN 205388158U CN 201620092835 U CN201620092835 U CN 201620092835U CN 205388158 U CN205388158 U CN 205388158U
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- valve
- intercommunicating pore
- self
- seal
- valve plate
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Abstract
The utility model discloses a self -sealing stop valve, including the valve body, be equipped with feed liquor chamber and liquid outlet cavity in the valve body, be equipped with the baffle in the valve body, be equipped with on the baffle the intercommunicating pore of feed liquor chamber with the liquid outlet cavity intercommunication, be connected with the valve gap on the valve body, the spiro union has a valve shaft on the valve gap, the valve shaft stretch into liquid outlet cavity just its end connection have the valve plate, the cladding has an elastic sealing layer on the surface of valve plate, it is vice to form the axial seal who realizes axial seal after elastic sealing layer on the valve plate seal face cooperates with the end face contaction of intercommunicating pore, it is vice to form the radial seal that has radial self sealss effect after elastic sealing layer on the valve plate seal face cooperates with the contact of the pore wall of intercommunicating pore. This stop valve simple structure has the dual effect of axial seal and radial seal, does not need great pressure just can not lead to the fact seepage or leakage when closing.
Description
Technical field
This utility model relates to a kind of self-sealing stop valve.
Background technology
At present, known stop valve includes valve body, including valve body, be provided with admission chamber and go out sap cavity in valve body, in valve body, be provided with dividing plate, dividing plate be provided with by admission chamber with go out the intercommunicating pore that sap cavity connects, valve body is connected to valve gap, being connected with valve shaft on valve gap, valve shaft stretches into out its end of sap cavity and is connected to valve plate, and the outer surface of valve plate is coated with elastic sealing layer.Sealing principle is to rotate valve shaft to make the seal face of valve plate be blocked by intercommunicating pore, conducts oneself with dignity by fluid pressure and valve plate and makes the elastic sealing layer compressive deformation on seal face thus realizing sealing and namely blocking admission chamber and go out sap cavity.The stop valve of said structure, its weak point be fluid pressure higher time, the closing torque of valve is relatively big, and elastic sealing layer pressurized is serious, and the valve plate life-span is short.
Utility model content
The technical problems to be solved in the utility model is for drawbacks described above, it is provided that the self-sealing stop valve of a kind of good sealing effect.
For solving above-mentioned technical problem, this utility model provides the self-sealing stop valve of a kind of following structure, including valve body, it is provided with admission chamber in valve body and goes out sap cavity, dividing plate it is provided with in valve body, dividing plate be provided with by admission chamber with go out the intercommunicating pore that sap cavity connects, valve body is connected to valve gap, valve gap is bolted with valve shaft, valve shaft stretches into out sap cavity and its end is connected to valve plate, the outer surface of valve plate is coated with elastic sealing layer, its construction features is in that: the elastic sealing layer on described valve plate seal face can form the axial seal realizing axial seal with the end contact of intercommunicating pore after coordinating secondary；Elastic sealing layer on described valve plate seal face contacts with the hole wall of intercommunicating pore and can form the radial seal pair with radially self sealss effect after coordinating.
Described axial seal secondary with the elastic sealing layer at valve plate seal face outer rim position directly contacts with the end face of intercommunicating pore after formed.
Elastic sealing layer inside described valve plate seal face outer rim axially protrudes out thus forming the ring lip can fitted with the hole wall of intercommunicating pore, described radial seal secondary with the described lateral surface of ring lip contacts with the hole wall of intercommunicating pore after formed.
The contour line of the medial surface of described ring lip is obliquely installed relative to the axis of described valve plate, so that the medial surface of described ring lip becomes taper seat.
The contour line of the lateral surface of described ring lip is obliquely installed for the axis of described valve plate, so that the lateral surface of described ring lip is taper seat.
Described intercommunicating pore is made up of the conical bore section become larger outward from its inner and straight hole section, and conical bore section is arranged near going out sap cavity.
After elastic sealing layer on the seal face of valve plate coordinates with the end contact of intercommunicating pore, the two can form axial seal pair, thus realizing axial seal；Elastic sealing layer contacts the latter two with the hole wall of intercommunicating pore can form radial seal pair, thus realizing radial seal.The lateral surface of described ring lip is set to taper seat and can bring following benefit: one is that coordinating of the lateral surface hole wall with intercommunicating pore can be more tight, and its sealing effectiveness is better；Two are easy to ring lip when being valve closing enters intercommunicating pore；Three are easy to ring lip when being valve opening leaves intercommunicating pore to reduce unlatching resistance.The medial surface of described ring lip being set to taper seat and can bring following benefit: fluid pressure acts on and can produce radial component after on medial surface, it is more tight that this radial component can make that the lateral surface of ring lip and the hole wall of intercommunicating pore fit, and forms self sealss.That is this utility model both can realize axial seal by the ring muscle on the seal face of valve plate, it is possible to realizes radially self sealss by the ring lip on the seal face of valve plate.Even if fluid pressure is higher, it is not required that namely very big closing torque does not need valve plate is imposed severe pressure, but the existence that the radial seal owing to having self sealss effect is secondary, without easily causing valve seepage or leakage.
In sum, the utility model has the advantage of: simple in construction that there is axial seal and radial seal double effects, valve plate need not be applied too big pressure during closedown and just can not cause seepage or leakage, it is possible to extend the service life of valve.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail:
The structural representation of Fig. 1 self-sealing stop valve cut-off state；
Fig. 2 is the enlarged drawing in A portion in Fig. 1.
Detailed description of the invention
As depicted in figs. 1 and 2, self-sealing stop valve includes valve body 1, it is provided with admission chamber 2 in valve body 1 and goes out sap cavity 3, dividing plate 4 it is provided with in valve body 1, dividing plate 4 be provided with by admission chamber 2 with go out the intercommunicating pore 5 that sap cavity 3 connects, valve body 1 is connected to valve gap 6, valve gap 6 is bolted with valve shaft 7, valve shaft 7 stretches into out sap cavity 3 and its end is connected to valve plate 8, and the outer surface of valve plate 8 is coated with elastic sealing layer 9.Elastic sealing layer 9 on described valve plate 8 seal face can form the axial seal realizing axial seal with the end contact of intercommunicating pore 5 after coordinating secondary；Elastic sealing layer 9 on described valve plate 8 seal face contacts with the hole wall of intercommunicating pore 5 and can form the radial seal pair with radially self sealss effect after coordinating.Described axial seal secondary with the elastic sealing layer 9 at described valve plate 8 seal face outer rim position directly contacts with the end face of intercommunicating pore 5 after formed.Elastic sealing layer 9 inside described valve plate 8 seal face outer rim axially protrudes out thus forming the ring lip 11 can fitted with the hole wall of intercommunicating pore 5, described radial seal secondary with the lateral surface of described ring lip 11 contacts with the hole wall of intercommunicating pore 5 after formed.
Described valve plate 8 is that in the cutting situation shown in Fig. 1 and Fig. 2, the contour line 12 of the medial surface of ring lip 11 is obliquely installed relative to the axis of described valve plate 8, so that the medial surface of described ring lip 11 becomes taper seat along the orthographic projection diagram of its axial cutting.Described valve plate 8 is that in the cutting situation shown in Fig. 1 and Fig. 2, the contour line 13 of the lateral surface of ring lip 11 is obliquely installed for the axis of described valve plate 8, so that the lateral surface of described ring lip 11 is taper seat along the orthographic projection diagram of its axial cutting.Described intercommunicating pore 5 is made up of the conical bore section become larger outward from its inner and straight hole section, and conical bore section is arranged near going out sap cavity 3.Above-mentioned radial seal secondary with the lateral surface of described ring lip 11 contacts with conical bore section after formed.The lateral surface of described ring lip 11 is set to taper seat and can bring following effect: one is that coordinating of the lateral surface hole wall with intercommunicating pore 5 can be more tight, and its sealing effectiveness is better；Two are easy to ring lip 11 when being valve closing enters intercommunicating pore 5；Three are easy to ring lip 11 when being valve opening leaves intercommunicating pore 5 to reduce unlatching resistance.And by described intercommunicating pore 5 coordinates with ring lip 11 one section be set to the conical bore section that becomes larger outward from its inner, the lateral surface of ring lip 11 not only can be made further to coordinate tightly with the hole wall of intercommunicating pore 5, and ring lip 11 leaves intercommunicating pore 5 when being more conducive to valve opening, open resistance with further reduction.The medial surface of described ring lip 11 is set to taper seat and can bring following benefit: after valve closing, fluid pressure acts on and can produce radial component after on medial surface, it is more tight that this radial component can make that the lateral surface of ring lip and the hole wall of intercommunicating pore 5 fit, and forms self sealss.The described medial surface of ring lip and the contour line of lateral surface all can be determined according to designing requirement relative to the tapering at the angle of inclination of described valve plate axis and the conical bore section of intercommunicating pore 5.
Claims (7)
1. a self-sealing stop valve, including valve body (1), it is provided with admission chamber (2) in valve body (1) and goes out sap cavity (3), dividing plate (4) it is provided with in valve body (1), dividing plate (4) be provided with by admission chamber (2) with go out the intercommunicating pore (5) that sap cavity (3) connects, valve body (1) is connected to valve gap (6), valve gap (6) is bolted with valve shaft (7), valve shaft (7) stretches into out sap cavity (3) and its end is connected to valve plate (8), the outer surface of valve plate (8) is coated with elastic sealing layer (9), it is characterized in that: the elastic sealing layer (9) on described valve plate (8) seal face can form the axial seal realizing axial seal with the end contact of intercommunicating pore (5) after coordinating secondary；Elastic sealing layer (9) on described valve plate (8) seal face contacts with the hole wall of intercommunicating pore (5) and can form the radial seal pair with radially self sealss effect after coordinating.
2. self-sealing stop valve according to claim 1, it is characterised in that: described axial seal secondary with the elastic sealing layer (9) at valve plate (8) seal face outer rim position directly contacts with the end face of intercommunicating pore (5) after formed.
3. self-sealing stop valve according to claim 1, it is characterized in that: the elastic sealing layer (9) inside described valve plate (8) seal face outer rim axially protrudes out thus forming the ring lip (11) can fitted with the hole wall of intercommunicating pore (5), described radial seal secondary with the lateral surface of described ring lip (11) contacts with the hole wall of intercommunicating pore (5) after formed.
4. self-sealing stop valve according to claim 3, it is characterised in that: the contour line of the medial surface of described ring lip (11) is obliquely installed relative to the axis of described valve plate (8), so that the medial surface of described ring lip (11) becomes taper seat.
5. the self-sealing stop valve according to claim 3 or 4, it is characterised in that: the contour line of the lateral surface of described ring lip (11) is obliquely installed for the axis of described valve plate (8), so that the lateral surface of described ring lip (11) is taper seat.
6. the self-sealing stop valve according to any claim in claim 1-4, it is characterised in that: described intercommunicating pore (5) is made up of the conical bore section become larger outward from its inner and straight hole section, and conical bore section is arranged near going out sap cavity (3).
7. self-sealing stop valve according to claim 5, it is characterised in that: described intercommunicating pore (5) is made up of the conical bore section become larger outward from its inner and straight hole section, and conical bore section is arranged near going out sap cavity (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620092835.9U CN205388158U (en) | 2016-01-31 | 2016-01-31 | Self -sealing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620092835.9U CN205388158U (en) | 2016-01-31 | 2016-01-31 | Self -sealing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205388158U true CN205388158U (en) | 2016-07-20 |
Family
ID=56382300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620092835.9U Active CN205388158U (en) | 2016-01-31 | 2016-01-31 | Self -sealing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205388158U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443783A (en) * | 2016-01-31 | 2016-03-30 | 山东莱德机械有限公司 | Self-sealing stop valve |
| CN107178637A (en) * | 2017-07-27 | 2017-09-19 | 眉山中车制动科技股份有限公司 | A kind of safety valve with dual-seal function |
| CN111550600A (en) * | 2020-05-20 | 2020-08-18 | 王善波 | Heat-insulation stop valve |
-
2016
- 2016-01-31 CN CN201620092835.9U patent/CN205388158U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443783A (en) * | 2016-01-31 | 2016-03-30 | 山东莱德机械有限公司 | Self-sealing stop valve |
| CN105443783B (en) * | 2016-01-31 | 2018-06-29 | 山东莱德管阀有限公司 | Self-sealing stop valve |
| CN107178637A (en) * | 2017-07-27 | 2017-09-19 | 眉山中车制动科技股份有限公司 | A kind of safety valve with dual-seal function |
| CN107178637B (en) * | 2017-07-27 | 2018-08-31 | 眉山中车制动科技股份有限公司 | A kind of safety valve with dual-seal function |
| WO2019019523A1 (en) * | 2017-07-27 | 2019-01-31 | 眉山中车制动科技股份有限公司 | Safety valve having double-sealing function |
| CN111550600A (en) * | 2020-05-20 | 2020-08-18 | 王善波 | Heat-insulation stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180524 Address after: 262737 Hai Yan Road, Binhai Economic and Technological Development Zone, Weifang, Shandong, north of the two street, West Pearl River East. Patentee after: Shandong Ryder pipe valve Co., Ltd. Address before: 261057 3998 West Outer Ring Road, Weicheng District, Weifang, Shandong. Patentee before: Shandong Lede Machinery Co., Ltd. |