CN104033377A - Connecting mechanism of oil well pump delivery valve - Google Patents
Connecting mechanism of oil well pump delivery valve Download PDFInfo
- Publication number
- CN104033377A CN104033377A CN201410304637.XA CN201410304637A CN104033377A CN 104033377 A CN104033377 A CN 104033377A CN 201410304637 A CN201410304637 A CN 201410304637A CN 104033377 A CN104033377 A CN 104033377A
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- China
- Prior art keywords
- outlet valve
- oil well
- well pump
- hold
- pressure cap
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Abstract
The invention discloses a connecting mechanism of an oil well pump delivery valve. The connecting mechanism comprises an oil pumping pull rod (1), a pressing cap (2), a fixed screw cap (3), a hexagonal fixing sleeve (4) and the delivery valve (7), the small end of the delivery valve (7) is sleeved with the hexagonal fixing sleeve (4), and the hexagonal fixing sleeve (4) can slide left and right. One end of the oil pumping pull rod (1) is sequentially sleeved with the fixed screw cap (3) and the pressing cap (2), the oil pumping pull rod (1) is located between the pressing cap (2) and the hexagonal fixing sleeve (4), the pressing cap (2) is milled to be hexagonal, an annular groove is turned in one end of the fixed screw cap (3) and is welded to the oil pumping pull rod (1) as a welding cavity, the interior and the exterior of the hexagonal fixing sleeve (4) are respectively milled to be hexagonal, and the small end of the delivery valve (7) and the fixed screw cap (3) are both located in the hexagonal fixing sleeve (4). Through the structure, the delivery valve and the oil pumping pull rod are not prone to being loosened and separated, the structure is simple and reliable, the work structure parameter is not changed, the connecting mechanism can be repeatedly dismounted, machining and manufacturing are easy, and on-site assembling is facilitated.
Description
Technical field
The present invention relates to valve field, particularly, relate to the bindiny mechanism of oil well pump outlet valve.
Background technique
In oil field machinery oil process, usually run into oil well pump and do not go out oil condition.The Placement of existing oil well pump outlet valve and pull bar is now lock nut to be screwed into pull rod screw end to be greater than valve reach place, again by outlet valve small end with pull bar with being threaded, when being connected to precalculated position, lock nut is return and tightened, the locking of formation prestressing force, outlet valve lower end adopts double thread connector, and valve is connected with plunger.In the time of work, due to the drawing effect of pull bar, pull rod screw part can produce deformation, and tightly power locking can lose locking effect very soon in advance.Simultaneously loosening owing to can producing between the effect screw thread of alternating force and nut.Usually can be because of folder between plunger and pump barrel
Impurity and hair fastener, free limited in rotation, the diameter minimum of helical thread portion between pull bar and outlet valve, therefore can first produce relative rotation, and causes after loosening and slowly moves back button, causes outlet valve and pull bar disengaging.
summary of the invention
Technical problem to be solved by this invention is to provide the bindiny mechanism of oil well pump outlet valve, is not easy loosening and departs between outlet valve and rod line carrier, and this is simple in structure, reliable, do not change work structuring parameter, can repeatedly dismantle, processing and fabricating is simple, is convenient to assembled in situ.
The present invention addresses the above problem adopted technological scheme: the bindiny mechanism of oil well pump outlet valve, comprise rod line carrier, pressure cap, hold-doun nut, six side's fixed cover and outlet valves, described outlet valve small end cover has six side's fixed covers, and six side's fixed covers can horizontally slip; Described rod line carrier one end is overlapped successively hold-doun nut and pressure cap, between pressure cap and six side's fixed covers, pressure cap milling is six sides, one end of described hold-doun nut circular groove of getting on the bus out, be welded on rod line carrier as welding cavity, the inside and outside equal milling of described six side's fixed cover is six sides, and outlet valve small end and hold-doun nut are all positioned at six side's fixed covers.Six side's fixed cover outsides mill out six sides, in order to ensure enough oil discharge passages.Pressure cap left side is left six and can be used spanner fastening, and right side edge just in time can enter preformed groove inside six side's fixed covers, can prevent from passing in and out pump barrel time, touches and scrapes.
Outlet valve small end outer surface is hexagonal structure, the hexagonal structure equal and opposite in direction of outer six sides of outlet valve small end, outer six sides of hold-doun nut and six side's fixed cover inside.
Movable joint is also set on described outlet valve.
Described movable joint comprises left and right joint and is connected to the box cupling between left and right joint.
Described rod line carrier outer surface arranges screw thread.
Described six side's fixed cover one end arrange preformed groove, and pressure cap one end can enter preformed groove.
To sum up, the invention has the beneficial effects as follows:
1, between outlet valve and rod line carrier, be not easy loosening and depart from, this is simple in structure, reliable, does not change work structuring parameter, can repeatedly dismantle, and processing and fabricating is simple, is convenient to assembled in situ.
2, movable joint can freely rotate, thereby ensures that screw thread effectively connects, and further prevents that rod line carrier and outlet valve generation pine from moving back phenomenon.
Brief description of the drawings
Fig. 1 is sectional view of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to view.
Mark and corresponding component title in accompanying drawing: 1, rod line carrier; 2, pressure cap; 3, hold-doun nut; 4, six side's fixed covers; 5, movable joint; 6, box cupling; 7, outlet valve.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done to detailed description further, but embodiments of the present invention are not limited to this.
Embodiment 1:
As shown in Figure 1-2, the present invention includes rod line carrier 1, pressure cap 2, hold-doun nut 3, six side's fixed covers 4 and outlet valve 7, described outlet valve 7 small end covers have six side's fixed cover 4, six side's fixed covers 4 to horizontally slip; Described rod line carrier 1 one end is overlapped successively hold-doun nut 3 and pressure cap 2, between pressure cap 2 and six side's fixed covers 4, pressure cap 2 millings are six sides, one end of described hold-doun nut 3 circular groove of getting on the bus out, be welded on rod line carrier 1 as welding cavity, the inside and outside equal milling of described six side's fixed cover 4 is six sides, and outlet valve 7 small ends and hold-doun nut 3 are all positioned at six side's fixed covers 4.
In the time connecting, first pressure cap is screwed into rod line carrier, again lock nut is loaded onto after adjusting to precalculated position and be welded on rod line carrier, after six side's fixed covers push, outlet valve is screwed into, again six side's fixed covers are inserted in to outlet valve six sides and hold-doun nut six sides, now outlet valve six sides and the upright alignment of hold-doun nut six, show that position mixes up, six side's fixed cover inside form circumferential fixing after being inserted in 2 hexahedrons, finally pressure cap is return and is screwed into compression, examine the surface of no motion friction lock of hold-doun nut, pressure cap outer rim limits the axial position of the axle sleeve of six side's fixed cover inside, thereby form firm locking.Between outlet valve and rod line carrier, be not easy loosening and depart from, this is simple in structure, reliable, does not change work structuring parameter, can repeatedly dismantle, and processing and fabricating is simple, is convenient to assembled in situ.
Embodiment 2:
Preferably concrete structure is as follows on embodiment 1 basis for the present embodiment: outlet valve 7 small end outer surfaces are hexagonal structure, the hexagonal structure equal and opposite in direction of outer six sides of outlet valve 7 small ends, outer six sides of hold-doun nut 3 and six side's fixed cover 4 inside.Be convenient to hold-doun nut and outlet valve all to snap in six side's fixed covers.
Embodiment 3:
The present embodiment increases following technical characteristics on the basis of above-described embodiment: movable joint 5 is also set on outlet valve 7.
Described movable joint 5 comprises left and right joint and is connected to the box cupling 6 between left and right joint.Box cupling connects after left and right joint, and left and right joint all can freely rotate.When after plunger and pump barrel generation jam, can not freely rotate, this movable joint can freely rotate, thereby ensures that screw thread effectively connects, and prevents that rod line carrier and outlet valve generation pine from moving back phenomenon.This is simple in structure, reliably, do not change reliable, does not change work structuring parameter, works unaffected, can repeatedly dismantle, and processing and fabricating is simple, is convenient to assembled in situ.
Described rod line carrier 1 outer surface arranges screw thread.
Described six side's fixed cover 4 one end arrange preformed groove, and pressure cap 2 one end can enter preformed groove.
As mentioned above, can realize preferably the present invention.
Claims (6)
1. the bindiny mechanism of oil well pump outlet valve, it is characterized in that, comprise rod line carrier (1), pressure cap (2), hold-doun nut (3), six side's fixed covers (4) and outlet valve (7), described outlet valve (7) small end cover has six side's fixed covers (4), and six side's fixed covers (4) can horizontally slip; Described rod line carrier (1) one end is overlapped successively hold-doun nut (3) and pressure cap (2), be positioned between pressure cap (2) and six side's fixed covers (4), pressure cap (2) milling is six sides, one end of described hold-doun nut (3) circular groove of getting on the bus out, be welded on rod line carrier (1) as welding cavity, the inside and outside equal milling of described six side's fixed cover (4) is six sides, and outlet valve (7) small end and hold-doun nut (3) are all positioned at six side's fixed covers (4).
2. the bindiny mechanism of oil well pump outlet valve according to claim 1, it is characterized in that, outlet valve (7) small end outer surface is hexagonal structure, outer six sides of outlet valve (7) small end, outer six sides of hold-doun nut (3) and the inner hexagonal structure equal and opposite in direction of six side's fixed covers (4).
3. the bindiny mechanism of oil well pump outlet valve according to claim 1, is characterized in that, movable joint (5) is also set on described outlet valve (7).
4. the bindiny mechanism of oil well pump outlet valve according to claim 3, is characterized in that, described movable joint (5) comprises left and right joint and is connected to the box cupling (6) between left and right joint.
5. the bindiny mechanism of oil well pump outlet valve according to claim 1, is characterized in that, described rod line carrier (1) outer surface arranges screw thread.
6. the bindiny mechanism of oil well pump outlet valve according to claim 1, is characterized in that, described six side's fixed cover (4) one end arrange preformed groove, and pressure cap (2) one end can enter preformed groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410304637.XA CN104033377A (en) | 2014-06-30 | 2014-06-30 | Connecting mechanism of oil well pump delivery valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410304637.XA CN104033377A (en) | 2014-06-30 | 2014-06-30 | Connecting mechanism of oil well pump delivery valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104033377A true CN104033377A (en) | 2014-09-10 |
Family
ID=51464308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410304637.XA Pending CN104033377A (en) | 2014-06-30 | 2014-06-30 | Connecting mechanism of oil well pump delivery valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104033377A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952968A (en) * | 2019-12-30 | 2020-04-03 | 西南石油大学 | High fatigue life type superhigh pressure fracturing union connects |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1141384A (en) * | 1995-07-21 | 1997-01-29 | 王泰兴 | Mechanism for preventing loosing of oil-pumping rod and oil-pump plunger screw |
| CN101718176A (en) * | 2009-11-18 | 2010-06-02 | 白霞 | Coupling thread-off stopper |
| CN203925989U (en) * | 2014-06-30 | 2014-11-05 | 成都高普石油工程技术有限公司 | The linkage structure of oil well pump outlet valve |
-
2014
- 2014-06-30 CN CN201410304637.XA patent/CN104033377A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1141384A (en) * | 1995-07-21 | 1997-01-29 | 王泰兴 | Mechanism for preventing loosing of oil-pumping rod and oil-pump plunger screw |
| CN101718176A (en) * | 2009-11-18 | 2010-06-02 | 白霞 | Coupling thread-off stopper |
| CN203925989U (en) * | 2014-06-30 | 2014-11-05 | 成都高普石油工程技术有限公司 | The linkage structure of oil well pump outlet valve |
Non-Patent Citations (1)
| Title |
|---|
| 鲍文良: "抽油泵出油阀连接的改进设计", 《石油机械》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952968A (en) * | 2019-12-30 | 2020-04-03 | 西南石油大学 | High fatigue life type superhigh pressure fracturing union connects |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140910 |