CN201763968U - Buried lengthening rod stop valve - Google Patents
Buried lengthening rod stop valve Download PDFInfo
- Publication number
- CN201763968U CN201763968U CN2010205476473U CN201020547647U CN201763968U CN 201763968 U CN201763968 U CN 201763968U CN 2010205476473 U CN2010205476473 U CN 2010205476473U CN 201020547647 U CN201020547647 U CN 201020547647U CN 201763968 U CN201763968 U CN 201763968U
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- CN
- China
- Prior art keywords
- flap
- valve rod
- valve
- lengthening
- jaw
- 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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Abstract
The utility model discloses a buried lengthening rod stop valve, comprising a valve body, a valve cover, a valve rod, a valve flap, a rack, a valve rod driving mechanism and fillers. The utility model is characterized in that the valve body is provided with an inlet cavity and an outlet cavity; a horizontal communication mouth matched with the valve flap is arranged between the inlet cavity and the outlet cavity; an upper rack is fixed to the top of the rack through sealing connection; a valve rod nut linked to the valve rod is rotatingly arranged in the upper end of the rack; A limit sliding block is fixedly arranged on the valve rod; a guide rail which is coaxial with the valve rod and is in a sliding match with the limit sliding block is arranged on the inner wall of the rack; a lengthening three-jaw is rotatingly disposed in the upper rack; the upper end of the lengthening three-jaw is linked to the valve rod driving mechanism, and the lower end of the lengthening three-jaw is clamped on the valve rod nut which forms a coaxial rotating cooperation with the valve rod nut. The utility model is advantageous in that the valve rod is good in stability and rigidity.
Description
Technical field
The utility model relates to a kind of stop valve, specifically is meant a kind of buried extension bar stop valve.
Background technique
Stop valve is to use the most a kind of valve, its structure includes parts such as valve body, valve gap, valve rod, flap, support, valve rod driving mechanism and filler, its valve body is provided with snout cavity and outlet plenum, the connecting port of a level is set between snout cavity and the outlet plenum, flap is installed on the valve rod, and by the vertical-lift of valve rod driving mechanism or transfer and open connecting port or close connecting port and come opening/shutting valve.
Some need be embedded in existing stop valve and carry out work in the subterranean pipe line, and need exposing to ground, the valve rod driving mechanism make things convenient for the workman to operate, therefore the valve rod of the stop valve that need work to this class extends with burying, and since the sealing of the flap of stop valve need valve rod that flap is exerted pressure and seal, and the valve rod of lengthening can can't bear pressure and bending, rigidity and poor stability, and then influenced the sealability of stop valve.
Summary of the invention
The purpose of this utility model is in order to overcome the shortcoming and defect that prior art exists, and the buried extension bar stop valve of a kind of valve rod stability and good rigidity is provided.
For achieving the above object, technical solutions of the utility model are to include valve body, valve gap, valve rod, flap, support, valve rod driving mechanism and filler, described valve body is provided with snout cavity and outlet plenum, be provided with between snout cavity and the outlet plenum level and with the suitable connecting port of flap, described support top also sealed attachment is fixed with upper bracket, the rotatable Stem Mut that links with valve rod that is provided with in the upper end portion of said support, be set with the locating slip piece on the described valve rod, the inwall of described support is provided with guide rail coaxial with valve rod and that cooperate with locating slip piece locating slip, be provided with the lengthening three-jaw in the described upper bracket rotationally, upper end and the valve rod driving mechanism interlock of this lengthening three-jaw, and lower end clamping of the three-jaw that should extend constitutes on Stem Mut with the coaxial rotation of Stem Mut and cooperates.By this setting, utilize lengthening three-jaw clamping on Stem Mut, the action of lengthening three-jaw rotating band ovable valve stem lifting on the valve gap bolt of realization and the interlock of valve rod driving mechanism, therefore actual valve rod does not extend, so do not influence the rigidity and the stability of valve rod, improved traditional structure that makes the valve rod lengthening.
Further being provided with is that described flap includes outer flap and interior flap, described outer flap and the adaptive outer flap of connecting port sealing, and be provided with the slippage chamber adaptive in it with interior flap slippage, and outer flap is with respect to the lower opening in slippage chamber, the flap slip is installed in the interior slippage chamber of outer flap in described, and spacing cooperation of upper wall in the upper end of interior flap and the slippage chamber of outer flap, the underpart sealing in described interior flap and slippage chamber is adaptive, is provided with on the described outer flap to be communicated with underpart, slippage chamber and the outer relief hole of outer flap.By this setting, valve rod is when rising unlatching, meeting is the interior flap of lifting at first, thereby open the lower end in flap and slippage chamber in making, further makes the relief hole snout cavity and the outlet plenum under the outer flap that outer flap is outer of outer flap be communicated with pressure release, eliminates the pressure difference in two chambeies, after this lifting valve rod again, interior flap will drive outer flap and rise together, and this moment, stop valve was opened, so this setting has reduced to open the moment of valve greatly.
Advantage of the present utility model is: adopt the lengthening three-jaw to carry out " castellated " with Stem Mut and be connected transmission, actual valve rod is lengthening not, so do not influence the rigidity and the stability of valve rod, improved traditional structure that makes the valve rod lengthening, thereby traditional structure that makes the valve rod lengthening can influence the rigidity of valve rod and the sealability that stability influences valve.
Flap and outer flap have reduced the moment of opening valve widely in being provided with in addition.
Below in conjunction with specification drawings and specific embodiments the utility model is done further introduction.
Description of drawings
Fig. 1 embodiment structural representation of the present utility model;
Fig. 2 embodiment I of the present utility model portion enlarged view.
Embodiment
Embodiment of the present utility model shown in Fig. 1-2, include valve body 1, valve gap 2, valve rod 3, flap 4, support 5, valve rod driving mechanism 6 and filler 7, described valve body is provided with snout cavity 11 and outlet plenum 12, be provided with between snout cavity 11 and the outlet plenum 12 level and with the suitable connecting port 13 of flap 4, described support 5 tops also sealed attachment are fixed with upper bracket 8, the rotatable Stem Mut 31 that links with valve rod 3 that is provided with in the upper end portion of said support 5, this Stem Mut 31 of present embodiment is arranged in the upper end portion of support 5 rotationally by thrust ball bearing 32, be set with locating slip piece 33 on the described valve rod 3, the inwall of described support 5 is provided with and valve rod 3 guide rails 51 coaxial and that cooperate with locating slip piece 33 locating slips, constitute Stem Mut 31 rotating band ovable valve stems 3 axial descending operations thus, be provided with lengthening three-jaw 81 in the described upper bracket 8 rotationally, the described lengthening three-jaw 81 of present embodiment is arranged in the upper bracket 8 rotationally by deep groove ball bearing 82, the upper end of this lengthening three-jaw 81 and valve rod driving mechanism interlock 6, this valve rod driving mechanism of present embodiment interlock 6 is preferred to be adopted conventional handwheel manual drives modes, lower end clamping of this lengthening three-jaw 81 to constitute on Stem Mut 31 with the coaxial rotation of Stem Mut 31 to cooperate.
Present embodiment in addition, described flap 4 is made up of outer flap 41 and interior flap 42, described outer flap 41 and the adaptive outer flap 41 of connecting port 13 sealings, and be provided with in it and the adaptive slippage chamber 411 of interior flap 42 slippages, and outer flap 41 is with respect to the lower opening 412 in slippage chamber 411, flap 42 slips are installed in the interior slippage chamber 411 of outer flap 41 in described, and the upper end of interior flap 42 cooperates 415 with the upper wall in the slippage chamber of outer flap 41 is spacing, flap 42 is adaptive with the underpart sealing in slippage chamber 411 in described, (underpart in slippage chamber 411) is provided with seal ring 413 to present embodiment in this position, improve the sealing of the two, the relief hole 414 that is communicated with outside 411 underparts, slippage chamber and the outer flap 41 is set on the described outer flap 41.Be provided with thus, can greatly reduce valve opening moment.
Claims (2)
1. buried extension bar stop valve, include valve body, valve gap, valve rod, flap, support, valve rod driving mechanism and filler, described valve body is provided with snout cavity and outlet plenum, be provided with between snout cavity and the outlet plenum level and with the suitable connecting port of flap, it is characterized in that: described support top also sealed attachment is fixed with upper bracket, the rotatable Stem Mut that links with valve rod that is provided with in the upper end portion of said support, be set with the locating slip piece on the described valve rod, the inwall of described support is provided with guide rail coaxial with valve rod and that cooperate with locating slip piece locating slip, be provided with the lengthening three-jaw in the described upper bracket rotationally, upper end and the valve rod driving mechanism interlock of this lengthening three-jaw, and lower end clamping of the three-jaw that should extend constitutes on Stem Mut with the coaxial rotation of Stem Mut and cooperates.
2. a kind of buried extension bar stop valve according to claim 1, it is characterized in that: described flap includes outer flap and interior flap, described outer flap and the adaptive outer flap of connecting port sealing, and be provided with the slippage chamber adaptive in it with interior flap slippage, and outer flap is with respect to the lower opening in slippage chamber, the flap slip is installed in the interior slippage chamber of outer flap in described, and spacing cooperation of upper wall in the upper end of interior flap and the slippage chamber of outer flap, the underpart sealing in described interior flap and slippage chamber is adaptive, is provided with on the described outer flap to be communicated with underpart, slippage chamber and the outer relief hole of outer flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205476473U CN201763968U (en) | 2010-09-29 | 2010-09-29 | Buried lengthening rod stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205476473U CN201763968U (en) | 2010-09-29 | 2010-09-29 | Buried lengthening rod stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763968U true CN201763968U (en) | 2011-03-16 |
Family
ID=43716574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205476473U Expired - Fee Related CN201763968U (en) | 2010-09-29 | 2010-09-29 | Buried lengthening rod stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763968U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370899A (en) * | 2015-11-23 | 2016-03-02 | 佛山高富中石油燃料沥青有限责任公司 | Butterfly valve rod lengthening structure |
| CN105526412A (en) * | 2016-02-29 | 2016-04-27 | 苏州纽威阀门股份有限公司 | Hand wheel lifting device and valve with same |
| CN109307097A (en) * | 2018-10-15 | 2019-02-05 | 兰州高压阀门有限公司 | A kind of three-jaw cooperation drive mechanism |
-
2010
- 2010-09-29 CN CN2010205476473U patent/CN201763968U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370899A (en) * | 2015-11-23 | 2016-03-02 | 佛山高富中石油燃料沥青有限责任公司 | Butterfly valve rod lengthening structure |
| CN105526412A (en) * | 2016-02-29 | 2016-04-27 | 苏州纽威阀门股份有限公司 | Hand wheel lifting device and valve with same |
| CN105526412B (en) * | 2016-02-29 | 2018-03-23 | 苏州纽威阀门股份有限公司 | A kind of elevation device of handwheel and the valve with the elevation device |
| CN109307097A (en) * | 2018-10-15 | 2019-02-05 | 兰州高压阀门有限公司 | A kind of three-jaw cooperation drive mechanism |
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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 |
Granted publication date: 20110316 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |