CN202176311U - Switch locating device for square drill rod or oil pipe plug valve - Google Patents
Switch locating device for square drill rod or oil pipe plug valve Download PDFInfo
- Publication number
- CN202176311U CN202176311U CN2011201845420U CN201120184542U CN202176311U CN 202176311 U CN202176311 U CN 202176311U CN 2011201845420 U CN2011201845420 U CN 2011201845420U CN 201120184542 U CN201120184542 U CN 201120184542U CN 202176311 U CN202176311 U CN 202176311U
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- China
- Prior art keywords
- valve
- valve rod
- locating piece
- oil pipe
- rod
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Abstract
The utility model discloses a switch locating device for a square drill rod or an oil pipe plug valve, which belong to the field of plug valve control devices and comprise a valve body, a valve core and a valve rod. The valve core is arranged in the valve body, the valve core is connected with the valve rod, a through hole is arranged on a lateral wall of the valve body, and the valve rod penetrates out from the through hole. The switch locating device is characterized in that the valve rod is connected with a locating block, the valve core, the valve rod and the locating block rotate simultaneously all the time. The outer wall of the valve body is provided with a groove matched with the locating block so that the rotating angle of the valve rod is 90 degrees. The switch locating device for the square drill rod or the oil pipe plug valve is simple in structure, convenient to use, safe, reliable, capable of accurately limiting the operation positions of opening and closing, free of excess operation, strong in universality, beneficial for popularization, more stable in structure and safer in using. The through diameter of the valve core aligns against the through diameter of the valve body so that the damage to the valve core caused by washout of the fluid is small.
Description
Technical field
The utility model relates to a kind of control device of plug valve, particularly a kind of switch positioner that is used for kelly bar, oil pipe plug valve.
Background technology
Kelly bar, oil pipe plug valve are the hand control valves in the drill string circulating system, are handling the use in emergency circumstances of blowout, also can be used as mud simultaneously and save valve, prevent that mud from splashing on the rotating disk, a kind of in the blowout prevention instrument in the drilling rod.
The unlatching of plug valve, fastening position differ 90 °, so spool can only rotate 90 ° when the enable possition rotates to fastening position.Homemade plug valve; Have following problem for a long time: plug valve is opened, fastening position is inaccurate, does not have accurate, reliable localization device, when locating unlatching, fastening position with the fitting face of valve rod and valve seat; Because of the existence of fit-up gap can't accurately be located it; And valve rod fitting face easy abrasion, thus cause when operating, and as easy as rolling off a log operation is excessive.When operation when excessive, the valve core rotation angle will can't make spool latus rectum and valve body latus rectum align, and produce serious dislocation greater than 90 °, so that plug valve can't reliably cut out, thereby has potential safety hazard.When spool latus rectum and valve body latus rectum produced serious dislocation, spool is as easy as rolling off a log to be damaged by fluid erosion.
The utility model content
The goal of the invention of the utility model is: to the problem of above-mentioned existence; Provide a kind of simple in structure, easy to use, safe and reliable; Can accurately limit unlatching, closed operative position; Excessive problem can not occur operating, spool latus rectum and valve body latus rectum align, and spool receives fluid erosion to damage few kelly bar or oil pipe cock valve switching positioner.
The technical scheme that the utility model adopts is following:
Kelly bar of the utility model or oil pipe cock valve switching positioner comprise valve body, spool and valve rod, and said spool is arranged in the valve body; Be connected with valve rod on the said spool, the sidewall of said valve body is provided with through hole, and said valve rod passes from this through hole; Be connected with locating piece on the said valve rod; Spool, valve rod and locating piece rotate all the time simultaneously, and the outer wall of said valve body is provided with the groove that cooperates with locating piece, and the rotational angle that makes valve rod is 90 °.
Owing to adopted said structure, can pass through the rotation of control valve rod, thus the rotation of control spool, locating piece; Locating piece and groove fit only can be rotated valve rod in 90 ° scope, the latus rectum of spool and valve body latus rectum are aligned; Make plug valve reliably to close, the erosion of spool is few, and spool is few by the situation that fluid erosion damages; Kelly bar of the utility model or oil pipe cock valve switching positioner, simple in structure, easy to use; Safe and reliable, can accurately limit unlatching, closed operative position, excessive problem can not appear operating.
Kelly bar of the utility model or oil pipe cock valve switching positioner have projection on the said locating piece, and said projection is installed in the groove, and projection and groove fit, make projection in groove, limit the valve rod that is connected with locating piece, only can rotate 90 °.
Owing to adopted said structure, projection is positioned at groove, and projection and groove fit; The two ends of groove are used to limit the stroke of projection, thereby the valve rod that restriction is connected with locating piece only can rotate 90 °; The latus rectum of spool can be aligned with the valve body latus rectum; Make plug valve reliably to close, the erosion of spool is few, and spool is few by the situation that fluid erosion damages.
Kelly bar of the utility model or oil pipe cock valve switching positioner, said groove is a deep-slotted chip breaker, when valve rod was rotated, projection rotated in this deep-slotted chip breaker.
Owing to adopted said structure, deep-slotted chip breaker can limit the rotary motion trace of projection, rotates 90 ° thereby accurately control valve rod.
Kelly bar of the utility model or oil pipe cock valve switching positioner, said locating piece is stuck in outside the valve rod, and perhaps locating piece is fixedly connected with valve rod, and locating piece is rotated with valve rod simultaneously.
Owing to adopted said structure, can adopt multiple mode to be connected between locating piece and the valve rod, selective use, highly versatile is beneficial to popularization.
Kelly bar of the utility model or oil pipe cock valve switching positioner are provided with shaft block ring above locating piece, said shaft block ring is stuck in outside the valve rod, and perhaps shaft block ring is fixedly connected with valve rod.
Owing to adopted said structure, can limit locating piece through shaft block ring, make the structure of locating piece more surely lean on, use more safe.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
1. kelly bar of the utility model or oil pipe cock valve switching positioner are simple in structure, easy to use, safe and reliable;
2. kelly bar of the utility model or oil pipe cock valve switching positioner can accurately limit unlatching, closed operative position, excessive problem can not occur operating, and spool latus rectum and valve body latus rectum align, and it is few that spool is damaged by fluid erosion;
3. kelly bar of the utility model or oil pipe cock valve switching positioner, highly versatile is beneficial to popularization, and structure is more surely leaned on, and uses more safe.
Description of drawings
Fig. 1 is the kelly bar of the utility model or the structural representation of oil pipe cock valve switching positioner;
Fig. 2 is that A among Fig. 1 is to sketch map.
Mark among the figure: 1-valve body, 2-locating piece, 3-shaft block ring, 4-valve rod, 5-seal, 6-spool.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Like Fig. 1, shown in Figure 2, kelly bar of the utility model or oil pipe cock valve switching positioner comprise valve body 1, spool 6 and valve rod 4, and said spool 6 is arranged in the valve body 1; Be connected with valve rod 4 on the said spool 6, the sidewall of said valve body 1 is provided with through hole, and said valve rod 4 passes from this through hole, and is provided with seal 5 in the through hole; Make the favorable sealing property between valve rod 4 and the valve body 1, be connected with locating piece 2 on the said valve rod 4, spool 6, valve rod 4 and locating piece 2 rotate all the time simultaneously; Have projection on the said locating piece 2, it is deep-slotted chip breaker that the outer wall of said valve body 1 is provided with the said groove of the groove that cooperates with locating piece 2, when valve rod is rotated; Projection rotates in this deep-slotted chip breaker, and said groove is arranged at the top of through hole, and said projection is installed in the groove; And projection and groove fit make projection in groove, limit the valve rod 4 that is connected with locating piece 2, only can rotate 90 °; Said locating piece 2 is stuck in outside the valve rod 4, and perhaps locating piece 2 is fixedly connected with valve rod 4, and locating piece 2 is rotated with valve rod 4 simultaneously; Above locating piece 2, be provided with shaft block ring 3, said shaft block ring 3 is stuck in outside the valve rod 4, and perhaps shaft block ring 3 is fixedly connected with valve rod 4.Kelly bar of the utility model or oil pipe cock valve switching positioner can pass through the rotation of control valve rod, thus the rotation of control spool, locating piece; Projection on the locating piece and groove fit only can be rotated valve rod in 90 ° scope, the latus rectum of spool and valve body latus rectum are aligned; Make plug valve reliably to close, the erosion of spool is few, and spool is few by the situation that fluid erosion damages; Kelly bar of the utility model or oil pipe cock valve switching positioner, simple in structure, easy to use; Safe and reliable, can accurately limit unlatching, closed operative position, excessive problem can not appear operating.
Kelly bar of the utility model or oil pipe cock valve switching positioner can realize that locating piece 2, valve rod 4, spool 6 threes rotate synchronously, and locating piece 2 is installed on valve rod 4, are processed with the location collision block of protrusion on the locating piece 2, i.e. projection.Be processed with one section deep-slotted chip breaker that cooperates with the location collision block on the valve body 1, also can be the groove of other form of structure, to be advisable satisfied the cooperation with projection.Since on the valve body 1 length of deep-slotted chip breaker be by rise, top dead center line angle degree differs 90 ° of designs, exceeding this scope does not have deep-slotted chip breaker.When unlatching, shutoff operation, (valve rod accurately rotates 90 °) back just can't be rotated again when the collision block on the locating piece 2 brushes up against the deep-slotted chip breaker end.Since deep-slotted chip breaker, top dead center line angle degree differs 90 ° and very easyly guarantees through the machine means; Thereby when the unlatching of plug valve, shutoff operation; The rotational angle of spool 6, valve rod 4, locating piece 2 is just very accurate, so spool 6, valve rod 4 rotational angles just can not be above 90 °.
Kelly bar of the utility model or oil pipe cock valve switching positioner; Meet " catalogue (basis in 2005) is instructed in the national industry structural adjustment " and encourage class, the 6th type " oil, natural gas " the 5th " improving oil gas field recovery ratio, production safety safeguards technique and design, eco-environment restoration and prevention and cure of pollution engineering development and application ".
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. kelly bar or oil pipe cock valve switching positioner; Comprise valve body (1), spool (6) and valve rod (4), said spool (6) is arranged in the valve body (1), is connected with valve rod (4) on the said spool (6); The sidewall of said valve body (1) is provided with through hole; Said valve rod (4) passes from this through hole, it is characterized in that: be connected with locating piece (2) on the said valve rod (4), spool (6), valve rod (4) and locating piece (2) rotate all the time simultaneously; The outer wall of said valve body (1) is provided with the groove that cooperates with locating piece (2), and the rotational angle that makes valve rod (4) is 90 °.
2. kelly bar as claimed in claim 1 or oil pipe cock valve switching positioner; It is characterized in that: said locating piece has projection on (2); Said projection is installed in the groove; And projection and groove fit, the valve rod (4) that projection is limited be connected with locating piece (2) in groove only can rotate 90 °.
3. kelly bar as claimed in claim 2 or oil pipe cock valve switching positioner, it is characterized in that: said groove is a deep-slotted chip breaker, when valve rod (4) was rotated, projection rotated in this deep-slotted chip breaker.
4. according to claim 1 or claim 2 kelly bar or oil pipe cock valve switching positioner; It is characterized in that: said locating piece (2) is stuck in outside the valve rod (4); Perhaps locating piece (2) is fixedly connected with valve rod (4), and locating piece (2) is rotated with valve rod (4) simultaneously.
5. according to claim 1 or claim 2 kelly bar or oil pipe cock valve switching positioner; It is characterized in that: be provided with shaft block ring (3) in the top of locating piece (2); Said shaft block ring (3) is stuck in outside the valve rod (4), and perhaps shaft block ring (3) is fixedly connected with valve rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201845420U CN202176311U (en) | 2011-06-02 | 2011-06-02 | Switch locating device for square drill rod or oil pipe plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201845420U CN202176311U (en) | 2011-06-02 | 2011-06-02 | Switch locating device for square drill rod or oil pipe plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176311U true CN202176311U (en) | 2012-03-28 |
Family
ID=45866196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201845420U Expired - Lifetime CN202176311U (en) | 2011-06-02 | 2011-06-02 | Switch locating device for square drill rod or oil pipe plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176311U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179734A (en) * | 2015-10-21 | 2015-12-23 | 大连瑞亨机械制造有限公司 | High-strength and high-pressure kelly cock valve |
| CN108776075A (en) * | 2018-07-10 | 2018-11-09 | 长江大学 | Simulate the experimental rig and test method of downhole tool erosive wear |
| CN113864516A (en) * | 2021-10-12 | 2021-12-31 | 欧维克集团有限公司 | Cam mechanism for angular travel rotary valve |
-
2011
- 2011-06-02 CN CN2011201845420U patent/CN202176311U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179734A (en) * | 2015-10-21 | 2015-12-23 | 大连瑞亨机械制造有限公司 | High-strength and high-pressure kelly cock valve |
| CN108776075A (en) * | 2018-07-10 | 2018-11-09 | 长江大学 | Simulate the experimental rig and test method of downhole tool erosive wear |
| CN108776075B (en) * | 2018-07-10 | 2021-01-08 | 长江大学 | Testing device and testing method for simulating erosion wear of underground drill rod |
| CN113864516A (en) * | 2021-10-12 | 2021-12-31 | 欧维克集团有限公司 | Cam mechanism for angular travel rotary valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |
|
| CX01 | Expiry of patent term |