CN102734511B - Core pushing control valve - Google Patents
Core pushing control valve Download PDFInfo
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- CN102734511B CN102734511B CN201210218755.XA CN201210218755A CN102734511B CN 102734511 B CN102734511 B CN 102734511B CN 201210218755 A CN201210218755 A CN 201210218755A CN 102734511 B CN102734511 B CN 102734511B
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- control valve
- valve seat
- core
- spool
- ring
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Abstract
The invention discloses a core pushing control valve and overcomes the shortcoming that sticking cannot be removed by a thrust reverser in an emergency because a core is automatically pushed after the conventional backup arm is withdrawn in place. According to the core pushing control valve, a second end of a valve core is connected with a first end of a control valve rod; the control valve rod is sleeved in an adjusting joint in a sealing mode; the valve core and the adjusting joint are positioned in a control valve seat; a second end of the control valve rod is positioned outside the adjusting joint and extends out of a second end of the control valve seat; a check ring is sleeved outside the valve core; the adjusting joint is pressed against the check ring; a spring is sleeved on the outer surface of the valve core and positioned between the first end of the valve core and the check ring; the inner surface of the control valve seat, which is positioned between the check ring and the first end of the valve core, is provided with a slope shrinking towards the center; the first end of the control valve seat is provided with a transverse hole; and a radial side wall hole is formed on the side wall between the inner bottom of the control valve and the slope. By the core pushing control valve, effects that the backup arm can be withdrawn, and the core cannot be pushed when accidents such as sticking occur in the process of drilling the core are achieved, so that conditions are provided for removing sticking by using the thrust reverser.
Description
Technical field
The present invention relates to the seismic exploration logging equipment, relate in particular to a kind of core control valve that pushes away.
Background technique
The existing core cylinder working process that pushes away, be when from position is received in stratum core drilling backup, automatically core pushed to storage core cylinder.But while the fortuitous event such as bit freezing occurring in getting the core process, just backup arm need to be regained to the anti-instrument unfreezing that pushes away, now can not push away the core action.
But at present,, no matter whether motor bores and fall back on position, as long as backup just pushes away core after receiving position automatically, can not meet the in emergency circumstances anti-needs that push away unfreezing.
Summary of the invention
Technical problem to be solved by this invention is to overcome current backup to receive that behind position, just automatically pushing away core can not meet the in emergency circumstances anti-deficiency that pushes away the needs of unfreezing.
In order to solve the problems of the technologies described above, the invention provides a kind of core control valve that pushes away, comprise spool (1), control valve rod (2), regulate joint (3) and control valve seat (5), wherein:
The second end of spool (1) is connected with the first end of controlling valve rod (2), controls valve rod (2) stuffing box gland in the inside of regulating joint (3), and spool (1) and adjusting joint (3) are positioned at the inside of control valve seat (5); The second end of controlling valve rod (2) is positioned at the second end of regulating the outside of joint (3) and stretching out control valve seat (5); Back-up ring (7) is enclosed within the outside of spool (1), regulates joint (3) and withstands on back-up ring (7); Spring (8) is enclosed within on the outer surface of spool (1) and is positioned between the first end and back-up ring (7) of spool (1); The internal surface of control valve seat (5) slope (51) that shrink at the Wei Xiang center between back-up ring (7) and spool (1) first end; Control valve seat (5) first end is provided with transverse holes (52), and control valve seat (5) is provided with areole (53) radially on the sidewall between inner bottom surface and slope (51).
Preferably, on the end face of spool (1) first end, be provided with seal groove, be provided with the second seal ring (6) in seal groove.
Preferably, regulate joint (3) stuffing box gland in control valve seat (5) inside.
Preferably, control valve rod (2) and be provided with the outstanding shake-up piece (9) of controlling valve rod (2) second end outer surfaces on the part of stretching out control valve seat (5) second ends.
Preferably, the inner slope (51) of control valve seat (5) is more than or equal to the external diameter of back-up ring (7) at the internal diameter towards control valve seat (5) second end one sides, be less than the external diameter of back-up ring (7) at the internal diameter towards control valve seat (5) first end one side.
Compared with prior art, embodiments of the invention can be when getting core and the fortuitous event such as bit freezing occurs, receives backup arm and do not pushed away core, thereby separate card motion condition is provided for counter pushing away.Embodiments of the invention have improved the Security of instrument.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, or understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in specification, claims and accompanying drawing.
The accompanying drawing explanation
Accompanying drawing is used to provide the further understanding to technical solution of the present invention, and forms the part of specification, for explaining technological scheme of the present invention, does not form the restriction to technical solution of the present invention together with embodiments of the present invention.
Fig. 1 is that the embodiment of the present invention pushes away the be in the normal state structural representation of position of core control valve.
Fig. 2 is that the embodiment of the present invention pushes away the structural representation of core control valve in the position that is triggered.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.It should be noted that, in the situation that do not conflict, the embodiment in the application and the feature in embodiment be combination in any mutually.
As depicted in figs. 1 and 2, the second end of spool 1 is threaded connection with the first end of controlling valve rod 2.The end face of wherein controlling valve rod 2 first ends is provided with blind hole, on the second end outer surface of spool 1 and on the blind hole internal surface on control valve rod 2 first ends, is respectively arranged with screw thread.Control valve rod 2 and be enclosed within the inside of regulating joint 3, wherein control on the outer surface of valve rod 2 and be provided with seal groove, be provided with the first seal ring 4 in seal groove, strengthen the seal degree of controlling between valve rod 2 and adjusting joint 3.
The second end of controlling valve rod 2 is positioned at the outside of regulating joint 3, and stretch out the second end of control valve seat 5, on the part of stretching out control valve seat 5 second ends, be provided with the outstanding shake-up piece 9 of controlling valve rod 2 second end outer surfaces, this touches piece 9 and is kept off the outside at control valve seat 5 by the end face of these control valve seat 5 second ends.Regulate between joint 3 and control valve seat 5 and be provided with the 3rd seal ring 10, to strengthen the seal degree of regulating between joint 3 and control valve seat 5.The seal groove of laying the 3rd seal ring 10 is arranged on the outer surface of regulating joint 3.
The first end of regulating joint 3 withstands on the second end face of back-up ring 7, and the second end is positioned at the inside of control valve seat 5.Back-up ring 7 is enclosed within the outside of spool 1.
On the outer surface of spool 1, cover has at the first end of spool 1 and the spring 8 between back-up ring 7, and the first end of this spring 8 withstands on second end face of shoulder of spool 1 first end, and the second end withstands on the first end face of back-up ring 7.
On the internal surface of control valve seat 5, between the second end face of the shoulder of back-up ring 7 first end faces and spool 1 first end, be the slope 51 of shrinking to center gradually.This slope 51 of control valve seat 5 inside is in the side towards control valve seat 5 second ends, and internal diameter is more than or equal to the external diameter of back-up ring 7; This slope 51 is in the side towards control valve seat 5 first ends, and internal diameter is less than the external diameter of back-up ring 7.
When pushing away the core control valve in the normality position shown in Fig. 1, spool 1 first end face under the effect of Compress Spring 8 is close to valve seat 5, under the effect of seal ring 6, it is equivalent to an one-way valve, the hydraulic oil that promotion pushes away core bar 2 can only flow to areole 53 by the center hole 52 on control valve seat 5, and that areole 53 flows to the direction of center hole 52 is obstructed.Now controlling valve rod 2 can only be towards the direction motion of receiving, and the direction that pushes away core is cut off, even now receive backup, also can automatically not push away core.
At brill, move back in process, control arm-tie 11 on guide rail and move from left to right (with Fig. 1 and Figure 2 shows that example), when falling back on, touches by brill the shake-up piece 9 shown in Fig. 2, it is pulled pushes away core bar 2 and spool 1 and controls valve rod and move to the direction away from control valve seat 5 first ends, spring 8 is subject to force compresses, between the end face of control valve seat 5 inner bottom surface and spool 1 first end, forms cavity.After the end face of spool 1 first end slips over the areole 53 on control valve seat 5, center hole 52 and areole 53 UNICOMs of control valve seat 5.Now, hydraulic oil that promote to control valve rod 2 can flow to areole 53 from center hole 52, also can flow to center hole 52 from areole 53, can either receive during the position of inventive embodiment in being triggered and push away core bar, also can stretch out to push away core bar and pushed away core.
Upper arm-tie 11 in Fig. 2 is connected with the control guide rail of instrument, controls creeping into and boring and move back of drill bit.Upper arm-tie 11 moves left and right on the direction parallel with pushing away the core control valve, and when being positioned at Fig. 1 state, upper arm-tie 11 is positioned at the left end that pushes away the core control valve.
Whether prior art only has one to push away the core cylinder and there is no control valve, so no matter bore and fall back on position, as long as backup receives that position is pushed away core, can't meet the anti-condition that pushes away unfreezing.Push away the core action at the core control valve that pushes away that pushes away on core cylinder bottom seat the design embodiment of the present invention with control, only at brill, fall back on position and could realize pushing away the core action, meet and get in the core process while the bit freezing fortuitous event occurring, do not push away core and carry out the needs of reverse thrust action, push away unfreezing and facilitate for counter, greatly improve the instrument Security.
Although the disclosed mode of execution of the present invention as above, the mode of execution that described content just adopts for the ease of understanding the present invention, not in order to limit the present invention.Technician in any the technical field of the invention; under the prerequisite that does not break away from the disclosed spirit and scope of the present invention; can do any modification and variation what implement in form and on details; but scope of patent protection of the present invention, still must be as the criterion with the scope that appending claims was defined.
Claims (3)
1. one kind pushes away the core control valve, and comprise spool (1), control valve rod (2), regulate joint (3) and control valve seat (5), wherein:
The second end of spool (1) is connected with the first end of controlling valve rod (2), controls valve rod (2) stuffing box gland in the inside of regulating joint (3), and spool (1) and adjusting joint (3) are positioned at the inside of control valve seat (5); The second end of controlling valve rod (2) is positioned at the second end of regulating the outside of joint (3) and stretching out control valve seat (5); Back-up ring (7) is enclosed within the outside of spool (1), regulates joint (3) and withstands on back-up ring (7); Spring (8) is enclosed within on the outer surface of spool (1) and is positioned between the first end and back-up ring (7) of spool (1); The internal surface of control valve seat (5) slope (51) that shrink at the Wei Xiang center between back-up ring (7) and spool (1) first end; Control valve seat (5) first end is provided with transverse holes (52), and control valve seat (5) is provided with areole (53) radially on the sidewall between inner bottom surface and slope (51);
Wherein, control valve rod (2) and be provided with the outstanding shake-up piece (9) of controlling valve rod (2) second end outer surfaces on the part of stretching out control valve seat (5) second ends; Be provided with seal groove on the outer surface of control valve rod (2), be provided with the first seal ring (4) in seal groove; Be provided with seal groove on the end face of spool (1) first end, be provided with the second seal ring (6) in seal groove; Regulate between joint (3) and control valve seat (5) and be provided with the 3rd seal ring (10).
2. the core control valve that pushes away according to claim 1, wherein:
Regulate joint (3) stuffing box gland in control valve seat (5) inside.
3. the core control valve that pushes away according to claim 1, wherein:
The inner slope (51) of control valve seat (5) is more than or equal to the external diameter of back-up ring (7) at the internal diameter towards control valve seat (5) second end one sides, be less than the external diameter of back-up ring (7) at the internal diameter towards control valve seat (5) first end one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210218755.XA CN102734511B (en) | 2012-06-27 | 2012-06-27 | Core pushing control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210218755.XA CN102734511B (en) | 2012-06-27 | 2012-06-27 | Core pushing control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102734511A CN102734511A (en) | 2012-10-17 |
| CN102734511B true CN102734511B (en) | 2014-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210218755.XA Active CN102734511B (en) | 2012-06-27 | 2012-06-27 | Core pushing control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102734511B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879119B (en) * | 2015-04-07 | 2017-06-30 | 武汉海阔科技有限公司 | A kind of underground probe antiseize device |
| CN108953624B (en) * | 2018-08-13 | 2023-08-15 | 四川大学 | Lock nail type flap valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0477523A2 (en) * | 1990-09-26 | 1992-04-01 | Robert Bosch Gmbh | Pressure limiting valve, especially for hydraulic vehicle brake systems |
| CA2059965A1 (en) * | 1991-01-30 | 1992-07-31 | Major H. Gilbert | Check valve with quick lock attachment feature |
| CN1989364A (en) * | 2004-07-12 | 2007-06-27 | 迪芬巴赫控制***股份有限公司 | Releasable non-return valve |
| CN201074677Y (en) * | 2007-05-22 | 2008-06-18 | 中国海洋石油总公司 | Two-bit two-way fluid control valve |
| CN201802877U (en) * | 2010-09-26 | 2011-04-20 | 上海神开石油化工装备股份有限公司 | Hydraulic control ventilating switch valve |
| CN202418830U (en) * | 2011-11-15 | 2012-09-05 | 上海磊诺工业气体有限公司 | Resetting-preventing pneumatic valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003100303A2 (en) * | 2002-05-28 | 2003-12-04 | Greene George Jefferson Jr | Flow measurement and control system for positive displacement pumps |
-
2012
- 2012-06-27 CN CN201210218755.XA patent/CN102734511B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0477523A2 (en) * | 1990-09-26 | 1992-04-01 | Robert Bosch Gmbh | Pressure limiting valve, especially for hydraulic vehicle brake systems |
| CA2059965A1 (en) * | 1991-01-30 | 1992-07-31 | Major H. Gilbert | Check valve with quick lock attachment feature |
| CN1989364A (en) * | 2004-07-12 | 2007-06-27 | 迪芬巴赫控制***股份有限公司 | Releasable non-return valve |
| CN201074677Y (en) * | 2007-05-22 | 2008-06-18 | 中国海洋石油总公司 | Two-bit two-way fluid control valve |
| CN201802877U (en) * | 2010-09-26 | 2011-04-20 | 上海神开石油化工装备股份有限公司 | Hydraulic control ventilating switch valve |
| CN202418830U (en) * | 2011-11-15 | 2012-09-05 | 上海磊诺工业气体有限公司 | Resetting-preventing pneumatic valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102734511A (en) | 2012-10-17 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |