CN105443783A - Self-sealing stop valve - Google Patents
Self-sealing stop valve Download PDFInfo
- Publication number
- CN105443783A CN105443783A CN201610063336.1A CN201610063336A CN105443783A CN 105443783 A CN105443783 A CN 105443783A CN 201610063336 A CN201610063336 A CN 201610063336A CN 105443783 A CN105443783 A CN 105443783A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve plate
- intercommunicating pore
- self
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 51
- 230000000694 effects Effects 0.000 claims abstract description 10
- 239000011148 porous material Substances 0.000 claims description 38
- 238000010586 diagram Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract 5
- 230000009977 dual effect Effects 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a self-sealing stop valve which comprises a valve body. A liquid inlet cavity and a liquid outlet cavity are formed in the valve body, a partition plate is arranged in the valve body and is provided with a communicating hole enabling the liquid inlet cavity and the liquid outlet cavity to be communicated, a valve cover is connected to the valve body, a valve shaft is connected to the valve cover in a threaded mode and extends into the liquid outlet cavity, the end of the valve shaft is connected with the valve plate, the outer surface of the valve plate is coated with an elastic sealing layer, the elastic sealing layer on the valve plate sealing end face is matched with the end face of the communicating hole in a contact mode, and then an axial sealing pair for achieving axial sealing can be formed. The elastic sealing layer on the valve plate sealing end face is matched with the hole wall of the communicating hole in a contact mode, and then a radial sealing pair for achieving a radial self-sealing effect can be formed. The stop valve is simple in structure, has the dual effects of axial sealing and radial sealing, does not need a larger pressure during closing and does not cause seepage or leakage.
Description
Technical field
The present invention relates to a kind of self-sealing stop valve.
Background technique
At present, known stop valve comprises valve body, comprise valve body, be provided with admission chamber and go out sap cavity in valve body, be provided with dividing plate in valve body, dividing plate is provided with admission chamber and the intercommunicating pore going out sap cavity and be communicated with, valve body is connected with valve gap, valve gap is connected with valve shaft, and valve shaft stretches into out its end of sap cavity and is connected with valve plate, and the outer surface of valve plate is coated with elastic sealing layer.Sealing principle rotates valve shaft to make the seal face of valve plate by intercommunicating pore shutoff, makes the elastic sealing layer compressive deformation on seal face thus realize sealing namely block admission chamber and go out sap cavity by hydrodynamic pressure and valve plate deadweight.The stop valve of said structure, its deficiency be hydrodynamic pressure higher time, the closing torque of valve is comparatively large, and elastic sealing layer pressurized is serious, and the valve plate life-span is short.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned defect, provides a kind of self-sealing stop valve of good sealing effect.
For solving the problems of the technologies described above, the invention provides a kind of self-sealing stop valve of following structure, comprise valve body, be provided with admission chamber in valve body and go out sap cavity, dividing plate is provided with in valve body, dividing plate is provided with admission chamber and the intercommunicating pore going out sap cavity and be communicated with, valve body is connected with valve gap, valve gap is bolted with valve shaft, valve shaft stretches into out sap cavity and its end is connected with valve plate, the outer surface of valve plate is coated with elastic sealing layer, its structural feature is: can form the axial seal realizing axial seal after the elastic sealing layer on described valve plate seal face coordinates with the end contact of intercommunicating pore secondary, elastic sealing layer on described valve plate seal face can form the radial seal with radial selfsealings effect after contacting with the hole wall of intercommunicating pore and coordinating secondary.
Secondary directly the contact by the elastic sealing layer at valve plate seal face outer rim position and the end face of intercommunicating pore of described axial seal coordinates rear formation.
Elastic sealing layer inside described valve plate seal face outer rim axially protrudes out thus forms the ring lip can fit with the hole wall of intercommunicating pore, and described radial seal pair is contacted to coordinate with the hole wall of intercommunicating pore by the described outer side surface of ring lip and formed afterwards.
Described valve plate is along in the orthographic projection diagram of its axial cutting, and the profile line of the inner side surface of ring lip is obliquely installed relative to the axis of described valve plate, thus makes the inner side surface of described ring lip become conical surface.
Described valve plate is along in the orthographic projection diagram of its axial cutting, and the profile line of the outer side surface of ring lip is obliquely installed for the axis of described valve plate, thus makes the outer side surface of described ring lip be conical surface.
Described intercommunicating pore is by becoming large conical bore section outward gradually from its inner and straight hole section is formed, 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 realizes axial seal; Elastic sealing layer contacts the latter two with the hole wall of intercommunicating pore can form radial seal pair, thus realizes radial seal.The outer side surface of described ring lip is set to conical surface and can brings following benefit: one is that outer side surface can be more tight with the coordinating of hole wall of intercommunicating pore, and its sealing effect is better; Two are convenient to ring lip when being valve closings enters intercommunicating pore; Three are convenient to ring lip when being valve openings leaves intercommunicating pore to reduce to open resistance.The inner side surface of described ring lip is set to conical surface and can brings following benefit: fluid pressure action on inner side surface after can produce radial component, it is more tight that this radial component can make the outer side surface of ring lip and the hole wall of intercommunicating pore fit, and forms selfsealings.That is the present invention both realized axial seal by the ring muscle on the seal face of valve plate, also realized radial selfsealings by the ring lip on the seal face of valve plate.Even if when hydrodynamic pressure is higher, do not need very large closing torque namely not need to impose severe pressure to valve plate yet, but due to the existence of the radial seal pair with selfsealings effect, can not easily cause valve seepage or leakage yet.
In sum, the invention has the advantages that: structure is simple, has axial seal and radial seal double effects, do not need during closedown that too large pressure is applied to valve plate and just can not cause seepage or leakage, the working life of valve can be extended.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail:
The structural representation of Fig. 1 self-sealing stop valve cut-off state;
Fig. 2 is the enlarged view in A portion in Fig. 1.
Embodiment
As depicted in figs. 1 and 2, self-sealing stop valve comprises valve body 1, be provided with admission chamber 2 in valve body 1 and go out sap cavity 3, dividing plate 4 is provided with in valve body 1, dividing plate 4 is provided with admission chamber 2 and the intercommunicating pore 5 going out sap cavity 3 and be communicated with, and valve body 1 is connected with 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 with valve plate 8, the outer surface of valve plate 8 is coated with elastic sealing layer 9.The axial seal realizing axial seal can be formed secondary after elastic sealing layer 9 on described valve plate 8 seal face coordinates with the end contact of intercommunicating pore 5; Elastic sealing layer 9 on described valve plate 8 seal face can form the radial seal with radial selfsealings effect after contacting with the hole wall of intercommunicating pore 5 and coordinating secondary.The secondary elastic sealing layer 9 by described valve plate 8 seal face outer rim position of described axial seal directly contacts to coordinate with the end face of intercommunicating pore 5 and is formed afterwards.Elastic sealing layer 9 inside described valve plate 8 seal face outer rim axially protrudes out thus forms the ring lip 11 can fit with the hole wall of intercommunicating pore 5, and described radial seal pair is contacted to coordinate with the hole wall of intercommunicating pore 5 by the outer side surface of described ring lip 11 and formed afterwards.
Namely described valve plate 8 is along in the orthographic projection diagram of its axial cutting in the cutting situation shown in Fig. 1 and Fig. 2, and the profile line 12 of the inner side surface of ring lip 11 is obliquely installed relative to the axis of described valve plate 8, thus makes the inner side surface of described ring lip 9 become conical surface.Namely described valve plate 8 is along in the orthographic projection diagram of its axial cutting in the cutting situation shown in Fig. 1 and Fig. 2, and the profile line 13 of the outer side surface of ring lip 11 is obliquely installed for the axis of described valve plate 8, thus makes the outer side surface of described ring lip 11 be conical surface.Described intercommunicating pore 5 is by becoming large conical bore section outward gradually from its inner and straight hole section is formed, and conical bore section is arranged near going out sap cavity 3.The secondary outer side surface by described ring lip 11 of above-mentioned radial seal contacts to coordinate with conical bore section and is formed afterwards.The outer side surface of described ring lip 11 is set to conical surface and can brings following effect: one is that outer side surface can be more tight with the coordinating of hole wall of intercommunicating pore 5, and its sealing effect is better; Two are convenient to ring lip 11 when being valve closings enters intercommunicating pore 5; Three are convenient to ring lip 11 when being valve openings leaves intercommunicating pore 5 to reduce to open resistance.And one section that is coordinated with ring lip 11 by described intercommunicating pore 5 is set to and becomes large conical bore section outward gradually from its inner, the outer side 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, to reduce further to open resistance.The inner side surface of described ring lip 11 is set to conical surface and can brings following benefit: after valve closing, fluid pressure action on inner side surface after can produce radial component, it is more tight that this radial component can make the outer side surface of ring lip and the hole wall of intercommunicating pore 5 fit, and forms selfsealings.The described inner side surface of ring lip and the profile line of outer side surface all can be determined according to designing requirement relative to the tapering of 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, comprise valve body (1), be provided with admission chamber (2) in valve body (1) and go out sap cavity (3), dividing plate (4) is provided with in valve body (1), dividing plate (4) is provided with admission chamber (2) and the intercommunicating pore (5) going out sap cavity (3) and be communicated with, valve body (1) is connected with 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 with valve plate (8), the outer surface of valve plate (8) is coated with elastic sealing layer (9), it is characterized in that: the axial seal realizing axial seal can be formed after the elastic sealing layer (9) on described valve plate (8) seal face coordinates with the end contact of intercommunicating pore (5) secondary, elastic sealing layer (9) on described valve plate (8) seal face can form the radial seal with radial selfsealings effect after contacting with the hole wall of intercommunicating pore (5) and coordinating secondary.
2. self-sealing stop valve according to claim 1, is characterized in that: the secondary elastic sealing layer (9) by valve plate (8) seal face outer rim position of described axial seal directly contacts to coordinate with the end face of intercommunicating pore (5) and formed afterwards.
3. self-sealing stop valve according to claim 1, it is characterized in that: elastic sealing layer (9) inside described valve plate (8) seal face outer rim axially protrudes out thus forms the ring lip (11) can fit with the hole wall of intercommunicating pore (5), described radial seal pair is contacted to coordinate with the hole wall of intercommunicating pore (5) by the outer side surface of described ring lip (11) and is formed afterwards.
4. self-sealing stop valve according to claim 3, it is characterized in that: described valve plate (8) is along in the orthographic projection diagram of its axial cutting, the profile line of the inner side surface of ring lip (11) is obliquely installed relative to the axis of described valve plate (8), thus makes the inner side surface of described ring lip (9) become conical surface.
5. the self-sealing stop valve according to claim 3 or 4, it is characterized in that: described valve plate (8) is along in the orthographic projection diagram of its axial cutting, the profile line of the outer side surface of ring lip (11) is obliquely installed for the axis of described valve plate (8), thus the outer side surface making described ring lip (11) is conical surface.
6. the self-sealing stop valve according to claim arbitrary in claim 1-4, is characterized in that: described intercommunicating pore (5) is by becoming large conical bore section outward gradually from its inner and straight hole section is formed, and conical bore section is arranged near going out sap cavity (3).
7. self-sealing stop valve according to claim 5, is characterized in that: described intercommunicating pore (5) is by becoming large conical bore section outward gradually from its inner and straight hole section is formed, and conical bore section is arranged near going out sap cavity (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610063336.1A CN105443783B (en) | 2016-01-31 | 2016-01-31 | Self-sealing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610063336.1A CN105443783B (en) | 2016-01-31 | 2016-01-31 | Self-sealing stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105443783A true CN105443783A (en) | 2016-03-30 |
| CN105443783B CN105443783B (en) | 2018-06-29 |
Family
ID=55554302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610063336.1A Active CN105443783B (en) | 2016-01-31 | 2016-01-31 | Self-sealing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443783B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561569A (en) * | 2018-06-08 | 2018-09-21 | 凯斯特阀门集团有限公司 | A kind of self-sealing stop valve |
| CN111981138A (en) * | 2020-09-03 | 2020-11-24 | 稷山县汾水阀门厂 | High-pole stop valve for farmland pipeline |
| CN114486082A (en) * | 2021-12-29 | 2022-05-13 | 西峡县内燃机进排气管有限责任公司 | Air tightness detection device of turbocharger shell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2495880A (en) * | 1944-01-22 | 1950-01-31 | Alexander S Volpin | Slush pump valve |
| CN2057250U (en) * | 1989-06-21 | 1990-05-16 | 戴学祥 | High pressure stop valve |
| CN202659916U (en) * | 2012-07-22 | 2013-01-09 | 江苏金晟元特种阀门有限公司 | High-performance bellows valve special for chlorine gas |
| CN202851994U (en) * | 2012-11-06 | 2013-04-03 | 程汉章 | Stop valve |
| CN205388158U (en) * | 2016-01-31 | 2016-07-20 | 山东莱德机械有限公司 | Self -sealing stop valve |
-
2016
- 2016-01-31 CN CN201610063336.1A patent/CN105443783B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2495880A (en) * | 1944-01-22 | 1950-01-31 | Alexander S Volpin | Slush pump valve |
| CN2057250U (en) * | 1989-06-21 | 1990-05-16 | 戴学祥 | High pressure stop valve |
| CN202659916U (en) * | 2012-07-22 | 2013-01-09 | 江苏金晟元特种阀门有限公司 | High-performance bellows valve special for chlorine gas |
| CN202851994U (en) * | 2012-11-06 | 2013-04-03 | 程汉章 | Stop valve |
| CN205388158U (en) * | 2016-01-31 | 2016-07-20 | 山东莱德机械有限公司 | Self -sealing stop valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561569A (en) * | 2018-06-08 | 2018-09-21 | 凯斯特阀门集团有限公司 | A kind of self-sealing stop valve |
| CN111981138A (en) * | 2020-09-03 | 2020-11-24 | 稷山县汾水阀门厂 | High-pole stop valve for farmland pipeline |
| CN114486082A (en) * | 2021-12-29 | 2022-05-13 | 西峡县内燃机进排气管有限责任公司 | Air tightness detection device of turbocharger shell |
| CN114486082B (en) * | 2021-12-29 | 2024-03-15 | 西峡县内燃机进排气管有限责任公司 | Air tightness detection device of turbocharger shell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105443783B (en) | 2018-06-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Hairuo Inventor after: Zhang Tonghu Inventor after: Zhang Jiancheng Inventor before: Zhang Tonghu Inventor before: Zhang Jiancheng |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180308 Address after: 262737 Shandong city of Weifang province Rhine Binhai Economic and Technological Development Zone Road to two Street West Jiangdong North Applicant after: Shandong Ryder pipe valve Co., Ltd. Address before: 261057 No. 3998 West Ring Road North, Weicheng District, Shandong, Weifang Applicant before: Shandong Lede Machinery Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191211 Address after: No. 3988, xiwaihuan Road, Weicheng District, Weifang City, Shandong Province Patentee after: Shandong Lede Machinery Co., Ltd. Address before: 262737 Shandong city of Weifang province Rhine Binhai Economic and Technological Development Zone Road to two Street West Jiangdong North Patentee before: Shandong Ryder pipe valve Co., Ltd. |
|
| TR01 | Transfer of patent right |