CN201078483Y - Hoisting type single pair tight seal cock valve - Google Patents
Hoisting type single pair tight seal cock valve Download PDFInfo
- Publication number
- CN201078483Y CN201078483Y CNU2007201566905U CN200720156690U CN201078483Y CN 201078483 Y CN201078483 Y CN 201078483Y CN U2007201566905 U CNU2007201566905 U CN U2007201566905U CN 200720156690 U CN200720156690 U CN 200720156690U CN 201078483 Y CN201078483 Y CN 201078483Y
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- China
- Prior art keywords
- valve
- valve rod
- cock
- groove
- guiding
- 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.)
- Expired - Fee Related
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- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a lifting type single secondary seal plug valve, which comprises a hand wheel [1], a valve rod [3], a plug [8], a valve body [9] and a valve cap [6]; wherein, guiding grooves are cut on the valve rod [3] and comprises a vertical guiding groove [13] and spiral guiding groove [11], which are communicated with each other, the spiral lifting groove [11] is positioned at the lower end of the vertical guiding groove [13], a guiding locating pin [4] is fixed on the valve cap [6], and one end of the guiding locating pin is positioned in the guiding grooves [11 and 13]. During lifting and falling of the valve rod, a 90-degree taping can be completed along the track of the guiding groove simultaneously so as to realize the opening and closing of the valve. The rotation is done after the lifting during the opening process, so that no friction occurs due to relative motion between the seal pairs of the valve. The utility model is simple and compact in structure.
Description
Technical field
The utility model relates to a kind of lifting type stopcock.
Background technique
Stopcock is made up of handwheel, valve rod, cock, valve body and valve gap usually, handwheel is fixed on the valve rod upper end, be provided with the shaft sealing cover between valve rod and the valve gap, cock is generally tapered cylinder, the centre has radial direction through hole, the conical walls of cock and valve body are formed sealing pair, and rotation hand wheel drives cock half-twist opening/shutting valve by valve rod.Stopcock is applicable to as cutting off and connect medium and shunting use, is widely used in oilfield exploitation, carries and refining equipment, also is widely used in petrochemical industry, chemical industry, coal gas, rock gas, liquefied petroleum gas (LPG), HVAC industry and the general industry simultaneously.Have friction owing to rotatablely move between the stopcock sealing pair, cause the wearing and tearing of vulcanized rubber layer easily, cause valve closing not tight, cause leakage, therefore, people have invented a kind of lifting type stopcock, but because complex structure, connected element is too much, easily produces and leaks, and has certain defective.
Summary of the invention
The purpose of this utility model provides the secondary sealing of a kind of lifting type list stopcock, and it is little to have a friction that promotes in simple in structure, the cock sealing pair opening-closing process, the characteristics of good sealing effect.
The utility model is achieved in that and comprises handwheel, valve rod, cock, valve body and valve gap, handwheel is rotationally connected by Stem Mut and valve rod, be provided with the shaft sealing cover between valve rod and the valve gap, offer guiding groove on the valve rod, guiding groove comprises vertically-guided groove and two parts of spiral guide slot that communicate, the spiral lifting groove is positioned at vertically-guided groove lower end, is fixed with guide positioning pin on the valve gap, and an end of guide positioning pin is arranged in described guiding groove.During unlatching, rotate handwheel, valve rod is at first upwards done to promote action under the effect of guide positioning pin, makes cock and valve body disengage, and when locating stud walked in the spiral lifting groove, valve rod drove cock and rotates, and makes valve open; Cock rotation earlier descends again when closing, and therefore, does not rotatablely move between cock and the valve body, and the wearing and tearing of cock are little.
In order to make valve opening laborsaving, be symmetrical arranged two guiding grooves on the valve rod, be fixed with two guide positioning pins in symmetrical position on the valve gap.
Described spiral lifting groove is the spiral chute of pi/2 angle of rotating in a circumferential direction, and is used for the sealing pair conical surface radian of sealed valve body in the cock less than π.
Because do not rotatablely move between the utility model cock and the valve body, the wearing and tearing of cock are little, therefore, can establish vulcanized rubber on the cock sealing pair, to improve sealing effect.
The utility model is on the structure of valve, change the profile of cock in the past, get its half and valve body form single sealing pair, adopt the locating stud guiding between valve rod and the valve gap, symmetry is processed into two vertically-guided grooves and spiral guide slot on the valve rod, makes valve rod in lifting process, finishes the keying that 90 ° of cocks realize valve simultaneously along the guiding groove track, metal is adopted in the single-lobe cock and rubber is high temperature vulcanized is combined as a whole good sealing effect.Promote rotation again in the opening process earlier, make the friction that no relative movement produces between the valve seal pair, simple in structure, compact.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of cock.
Among the above-mentioned figure, 1, handwheel, 2, Stem Mut, 3, valve rod, 4, guide positioning pin, 5, shaft sealing cover, 6, valve gap, 7, pin, 8, cock, 9, valve body, 10, guide sleeve, 11, spiral guide slot, 12, guide positioning pin, 13, the vertically-guided groove, 14, the sealing pair conical surface of cock.
Embodiment
As shown in Figure 1, the secondary sealing of the utility model lifting type list stopcock is made up of handwheel 1, valve rod 3, cock 8, valve body 9 and valve gap 6, handwheel 1 is rotationally connected by Stem Mut 2 and valve rod 3, be provided with shaft sealing cover 5 between valve rod 3 and the valve gap 6, be symmetrically arranged with two guiding grooves on the valve rod 3, each guiding groove comprises vertically-guided groove 13 and 11 two parts of spiral guide slot that communicate, and spiral lifting groove 11 is positioned at vertically-guided groove 13 lower ends, and the spiral lifting groove is the spiral chute of pi/2 angle of rotating in a circumferential direction.Valve rod 3 lower ends are connected with cock by pin, cock 8 promptly is used for sealing pair conical surface 14 radians of sealed valve body less than π for the single-lobe cock, and cover one deck vulcanized rubber on the cock sealing pair, between the rotating shaft of cock 3 bottoms and the valve body 9 guide sleeve 10 is arranged, be symmetrically fixed with two guide positioning pins 4 and 12 on the valve gap 6, an end of each guide positioning pin is arranged in an above-mentioned guiding groove.
Opening process: under state as shown in Figure 1, rotate counterclockwise handwheel 1, Stem Mut 2 rotates, under the effect of guide positioning pin 4 and 12, driving valve rod 3 moves up, valve rod drives cock 8 and upwards promotes, and breaks away from valve body sealing surface, when valve rod is up when making that guide positioning pin slips in the spiral lifting groove 11, valve rod is up and rotate counterclockwise, drive cock 8 and rotate under the frictionless situation, until the cock half-twist, valve is opened fully.Close closed procedure: clockwise rotate handwheel, valve rod is subjected to the effect of guide positioning pin in the spiral lifting groove, drive the cock half-twist, be rotated further handwheel, when valve rod is descending when making that guide positioning pin slips in the vertical lift groove 13, this moment, valve rod only moved downward, and cock simultaneously is under the effect of guide positioning pin, mechanically press to valve seat, it closely is pressed against reaches sealing on the valve seat.
The utlity model has following advantage:
1, opens, closes no friction phenomenon. During keying, cock promotes earlier again rotation or rotates earlier again Rely on valve seat, eliminate the friction of cock and valve base chamber, the service life that can improve valve.
2, simple and reliable for structure, open and close and finish whole actions by valve rod, mechanism is light.
3, shaft seal adopts sealing shroud to replace conventional filler, does not have and leaks.
4, can be made into the hermetically-sealed construction of two kinds of forms of soft or hard, be applicable to various working.
Claims (4)
1. a lifting type list pair seals stopcock, comprise handwheel [1], valve rod [3], cock [8], valve body [9] and valve gap [6], handwheel [1] is rotationally connected by Stem Mut [2] and valve rod [3], be provided with shaft sealing cover [5] between valve rod [3] and the valve gap [6], it is characterized in that offering guiding groove on the valve rod [3], guiding groove comprises vertically-guided groove [13] and [11] two parts of spiral guide slot that communicate, spiral lifting groove [11] is positioned at vertically-guided groove [13] lower end, be fixed with guide positioning pin [4] on the valve gap [6], an end of guide positioning pin [4] is positioned at described guiding groove [11,13] in.
2. the secondary sealing of lifting type list according to claim 1 stopcock is characterized in that being symmetrical arranged on the valve rod [3] two guiding grooves, and valve gap [6] is gone up and is fixed with two guide positioning pins [4,12] in symmetrical position.
3. the secondary sealing of lifting type list according to claim 2 stopcock is characterized in that the spiral chute of described spiral lifting groove [11] for the pi/2 angle that rotates in a circumferential direction, and is used for sealing pair conical surface [14] radian of sealed valve body in the cock [8] less than π,
4. according to claim 2 or the secondary sealing of 3 described lifting type lists stopcock, it is characterized in that the cock sealing pair is provided with vulcanized rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201566905U CN201078483Y (en) | 2007-08-08 | 2007-08-08 | Hoisting type single pair tight seal cock valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201566905U CN201078483Y (en) | 2007-08-08 | 2007-08-08 | Hoisting type single pair tight seal cock valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201078483Y true CN201078483Y (en) | 2008-06-25 |
Family
ID=39570545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201566905U Expired - Fee Related CN201078483Y (en) | 2007-08-08 | 2007-08-08 | Hoisting type single pair tight seal cock valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201078483Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691825A (en) * | 2012-06-07 | 2012-09-26 | 华夏阀门有限公司 | Anti-erosion linkage protective valve |
| CN105987193A (en) * | 2015-02-17 | 2016-10-05 | 浙江盾安人工环境股份有限公司 | Plug valve |
| CN105987191A (en) * | 2015-02-06 | 2016-10-05 | 浙江盾安人工环境股份有限公司 | Plug valve |
| CN106032844A (en) * | 2015-03-12 | 2016-10-19 | 浙江盾安人工环境股份有限公司 | A plug valve |
| CN108543125A (en) * | 2018-06-08 | 2018-09-18 | 绍兴安迪斯医疗科技有限公司 | A kind of pumping phlegm pipe negative pressure switch |
| CN111173986A (en) * | 2020-01-20 | 2020-05-19 | 邵延荣 | Pre-decompression butterfly valve |
| US11814822B2 (en) | 2018-09-27 | 2023-11-14 | Aalberts Integrated Piping Systems Limited | Plumbing fitting |
-
2007
- 2007-08-08 CN CNU2007201566905U patent/CN201078483Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691825A (en) * | 2012-06-07 | 2012-09-26 | 华夏阀门有限公司 | Anti-erosion linkage protective valve |
| CN105987191A (en) * | 2015-02-06 | 2016-10-05 | 浙江盾安人工环境股份有限公司 | Plug valve |
| CN105987193A (en) * | 2015-02-17 | 2016-10-05 | 浙江盾安人工环境股份有限公司 | Plug valve |
| CN105987193B (en) * | 2015-02-17 | 2019-03-01 | 浙江盾安人工环境股份有限公司 | Plug valve |
| CN106032844A (en) * | 2015-03-12 | 2016-10-19 | 浙江盾安人工环境股份有限公司 | A plug valve |
| CN108543125A (en) * | 2018-06-08 | 2018-09-18 | 绍兴安迪斯医疗科技有限公司 | A kind of pumping phlegm pipe negative pressure switch |
| CN108543125B (en) * | 2018-06-08 | 2024-03-15 | 绍兴安迪斯医疗科技有限公司 | Negative pressure switch of sputum suction tube |
| US11814822B2 (en) | 2018-09-27 | 2023-11-14 | Aalberts Integrated Piping Systems Limited | Plumbing fitting |
| CN111173986A (en) * | 2020-01-20 | 2020-05-19 | 邵延荣 | Pre-decompression butterfly valve |
| CN111173986B (en) * | 2020-01-20 | 2021-07-27 | 良工阀门集团有限公司 | Pre-decompression butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: In Anhui province Fan Chang County valve casting Co. Ltd. Assignor: Anhui Tongdu Valve Co., Ltd. Contract record no.: 2010340000030 Denomination of utility model: Hoisting type single pair tight seal cock valve Granted publication date: 20080625 License type: Exclusive License Record date: 20100401 |
|
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI TONGDU VALVE CO.,LTD Free format text: FORMER NAME: TONGDU VALVE CO., LTD., ANHUI PROV. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 244000 East Development Zone, Tongling City, Anhui Patentee after: Anhui Tongdu Valve Co., Ltd. Address before: 244000 East Development Zone, Tongling City, Anhui Patentee before: Anhui Tongdu Valve Co., Ltd. |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Fanchang County, Anhui Province, Weinan Valve Casting Co., Ltd. Assignor: Anhui Tongdu Valve Co., Ltd. Contract record no.: 2010340000030 Date of cancellation: 20110922 |
|
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI TONGDU FLOW TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ANHUI TONGDU VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 244000 East Development Zone, Tongling City, Anhui Patentee after: Anhui Tongdu Flow Technology Co., Ltd. Address before: 244000 East Development Zone, Tongling City, Anhui Patentee before: Anhui Tongdu Valve Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 Termination date: 20140808 |
|
| EXPY | Termination of patent right or utility model |