CN202441284U - Pressing-type steel ball self-locking elevator safety pin - Google Patents
Pressing-type steel ball self-locking elevator safety pin Download PDFInfo
- Publication number
- CN202441284U CN202441284U CN2012200783243U CN201220078324U CN202441284U CN 202441284 U CN202441284 U CN 202441284U CN 2012200783243 U CN2012200783243 U CN 2012200783243U CN 201220078324 U CN201220078324 U CN 201220078324U CN 202441284 U CN202441284 U CN 202441284U
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- China
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- steel ball
- depression bar
- elevator
- groove
- pressing rod
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Abstract
The utility model relates to a pressing-type steel ball self-locking elevator safety pin. The safety pin comprises a pin body, a steel ball, a spring and a pressing rod, wherein a steel ball hole is transversely formed in the pin body and a pressing rod groove is longitudinally formed on the pin body; the steel ball is positioned in the steel ball hole; one end of the pressing rod is inserted into the pressing rod groove and the other end of the pressing rod is arranged outside the pin body; a steel ball groove is formed on the pressing rod; and a spring is arranged between the pressing rod and the bottom of the pressing rod groove. Before the pressing-type steel ball self-locking elevator safety pin is used, a steel ball clamping groove is formed in an elevator pin hole, the pin body is inserted into the elevator pin hole, the pressing rod is bounced under the action of the elastic force of the spring, the steel ball is separated from the steel ball groove, and the steel ball is extruded by the pressing rod in a forced mode, so that a part (of the steel ball) exposed out of the pressing rod is clamped in the steel ball clamping groove of an elevator, the stability between the elevator pin and the elevator is improved, the phenomenon that a lifting ring slides out of the elevator is reduced, the occurrence rate that an oil pipe and a drill stem drop into a well is reduced, and the safety is effectively improved.
Description
Technical field
The utility model relates to and ensure the safety device that the elevator suspension ring do not break away from oil drilling, the workover treatment, what be specifically related to is a kind of pressing steel ball self-locking elevator safety pin.
Background technology
In oil drilling and oil-water well workover treatment, elevator is indispensable instrument when carrying tubing string, and the elevator two ends with the elevator pin be the critical component that prevents that suspension ring from skidding off from the elevator two ends.At present, the elevator pin that use in the part oil field, just a straight iron; Directly penetrate in the elevator pin-and-hole, have no locking device, safety is very poor; When workman's misoperation and when carrying suddenly, carrying firmly or putting soon, the elevator pin often takes place knocked the phenomenon that flies, cause suspension ring to skid off thus; Cause oil pipe, drilling rod to fall the well accident, operator's personal safety is caused huge threat.
Though the elevator pin simple operation that has magnetic force after the improvement, after repeatedly using, because of the reasons such as greasy dirt of its surface adhesion go down its magnetic force, the safety meeting decreases, and still has certain potential safety hazard.In addition, have the people that the shank of elevator pin is improved, on shank, be provided with a through hole, through hole is built-in with two steel balls, between two steel balls spring is arranged.Thus, under the effect of spring force, though improved steadiness through the mode that increases frictional force between two steel balls and the elevator, the elastic force of spring far is defeated by the power of suspension ring when skidding off during use, and potential safety hazard still exists.
Summary of the invention
The goal of the invention of the utility model is a kind of pressing steel ball self-locking elevator safety pin to be provided to the problems referred to above, is used to solve the problem of the elevator pin poor stability of present use.
The utility model is realized through following technical scheme: pressing steel ball self-locking elevator safety pin comprises shank, steel ball, spring, depression bar; Laterally have the steel ball hole on the described shank, vertically have a depression bar groove; Steel ball is positioned at the steel ball hole, and depression bar one end inserts in the depression bar groove, and the other end places outside the shank; Depression bar is provided with the steel ball groove, and spring places between depression bar and the depression bar groove trench bottom.
The trench bottom of said depression bar groove has drain.
This safety pin also includes the handle of band strut kong, and handle is threaded with the shank top.
The internal diameter of described strut kong forms a convex shape structure less than the internal diameter of depression bar groove, and depression bar is set to and strut kong, the matching used convex shape bar of depression bar groove simultaneously.
Described depression bar lower end is connected with gag lever post, and the other end of gag lever post is inserted in the spring.
Adopt the good effect of technique scheme: the utility model at first is provided with the steel ball draw-in groove before using in the elevator pin-and-hole, insert shank in the elevator pin-and-hole again after; Under the elastic force effect of spring, depression bar is rebounded, and steel ball separates with the steel ball groove; Steel ball is pushed by depression bar by force; The part that makes steel ball expose depression bar is stuck in the steel ball draw-in groove of elevator, strengthened the steadiness between elevator pin and the elevator, has reduced the situation that suspension ring skid off in the elevator that takes place; Reduce the incidence that oil pipe, drilling rod fall the well accident, effectively improved safety.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of shank among Fig. 1;
Fig. 3 is the structural representation of depression bar among Fig. 1;
Fig. 4 is the structural representation of handle among Fig. 1;
Fig. 5 is the user mode structural representation of the utility model.
Among the figure: 1 shank, 2 steel balls, 3 springs, 4 depression bars, 5 steel ball holes, 6 depression bar grooves, 7 steel ball grooves, 8 drain, 9 handles, 10 strut kongs, 11 elevators, 12 steel ball draw-in grooves, 13 gag lever posts.
The specific embodiment
Fig. 1 is the structural representation of the utility model, and Fig. 2 is the structural representation of shank among Fig. 1, below in conjunction with Fig. 1, Fig. 2 the utility model is described further: pressing steel ball self-locking elevator safety pin comprises shank 1, steel ball 2, spring 3, depression bar 4.Wherein, laterally have steel ball hole 5 on the shank 1, vertically have depression bar groove 6, steel ball hole 5 is two, is respectively applied for steel ball 2 is installed, and the outer end in steel ball hole 5 is curved, prevents that steel ball 2 landings from going out shank, simultaneously, also can reach the purpose that steel ball 2 exposes a part.Steel ball 2 is two, lays respectively in the steel ball hole 5.In addition, also can according to actual needs steel ball 2 and steel ball hole 5 be set to three covers, quadruplet.
Fig. 3 is the structural representation of depression bar among Fig. 1; As shown in the figure; Depression bar 4 one ends insert in the depression bar groove 6, and the other end places outside the shank 1, and the depression bar 4 behind the plug-in mounting can move up and down in depression bar groove 6; Depression bar 4 is provided with steel ball groove 7, and the cup depth of steel ball groove 7 can be return in the shank 1 and not hinder shank 1 to extract with steel ball 2 and be advisable.Spring 3 places between depression bar 4 and depression bar groove 6 trench bottoms.Through the elastic force of spring 3, can the depression bar of pushing 4 be sprung back to original state.When extracting; Steel ball groove 7 can accurately reach between two steel ball holes 5, guarantees that steel ball 2 can be retracted in the steel ball groove 7 smoothly, can gag lever post 13 be set in depression bar 4 lower ends; Gag lever post 13 can be threaded with depression bar 4; Also can be welded as a whole, simultaneously, the other end of gag lever post 13 is inserted in the spring 3.
Get into liquid or other materials when preventing to use in the depression bar groove 6, influence is normally used, and can have drain 8 at the trench bottom of depression bar groove 6.Drain 8 the resistance in the time of can also reducing by moulded rod 4 is set, make operation more laborsaving, convenient.
Fig. 4 is the structural representation of handle among Fig. 1, and is as shown in the figure, for ease of operation and from the consideration to the depression bar protection, can add a handle 9, and have strut kong 10 on the handle 9, and strut kong 10 pore sizes should be able to hold depression bar 4 upper ends to be passed through.Handle 9 is threaded with shank 1 top.For prevent that depression bar 4 from taking place significantly to move under the elastic force effect, reduce the possibility that depression bar 4 is directly ejected depression bar groove 6 simultaneously, can the internal diameter of strut kong 10 be arranged to the internal diameter less than depression bar groove 6; Like this; Handle 9 just forms the space of a convex shape structure with after shank 1 is threaded, and depression bar 4 is set to corresponding matching used convex shape bar; Can reach the purpose of control steel ball 2, prevent effectively that again depression bar 4 is by situation about directly ejecting or landing goes out.
Fig. 5 is the user mode structural representation of the utility model, and is as shown in the figure, before the use, at first with steel ball draw-in groove 12 is set in the elevator 11; When needing operations such as drilling well, well workover, clamp handle with forefinger and middle finger, the thumb press depression bar also inserts shank in the elevator pin-and-hole; Thumb press strength is weakened, and under the elastic force effect of spring, depression bar is rebounded; Steel ball separates with the steel ball groove, and steel ball is pushed by depression bar by force, and the part that makes steel ball expose depression bar is stuck in the steel ball draw-in groove 12 of elevator.Steadiness strengthens, and prevents that effectively suspension ring from skidding off, and has improved safety.
In the time of need extracting after the use, clamp handle with forefinger and middle finger, the thumb press depression bar, when the steel ball groove on the depression bar with after steel ball is corresponding, steel ball is retracted in the steel ball groove because of stressed meeting automatically, upwards one carries and can easily extract, and is simple to operation, safe.
Claims (5)
1. pressing steel ball self-locking elevator safety pin; Comprise shank (1), steel ball (2), spring (3); It is characterized in that: this safety pin also includes depression bar (4), laterally has steel ball hole (5) on the described shank (1), vertically has depression bar groove (6), and steel ball (2) is positioned at steel ball hole (5); Depression bar (4) one ends insert in the depression bar groove (6); The other end places outside the shank (1), and depression bar (4) is provided with steel ball groove (7), and spring (3) places between depression bar (4) and depression bar groove (6) trench bottom.
2. pressing steel ball self-locking elevator safety pin according to claim 1, it is characterized in that: the trench bottom of said depression bar groove (6) has drain (8).
3. pressing steel ball self-locking elevator safety pin according to claim 1 is characterized in that: this safety pin also includes the handle (9) of band strut kong (10), and handle (9) is threaded with shank (1) top.
4. pressing steel ball self-locking elevator safety pin according to claim 3; It is characterized in that: the internal diameter of described strut kong (10) is less than the internal diameter of depression bar groove (6); Form a convex shape structure, simultaneously depression bar (4) is set to and strut kong (10), the matching used convex shape bar of depression bar groove (6).
5. pressing steel ball self-locking elevator safety pin according to claim 1, it is characterized in that: described depression bar (4) lower end is connected with gag lever post (13), and the other end of gag lever post (13) is inserted in the spring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200783243U CN202441284U (en) | 2012-03-05 | 2012-03-05 | Pressing-type steel ball self-locking elevator safety pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200783243U CN202441284U (en) | 2012-03-05 | 2012-03-05 | Pressing-type steel ball self-locking elevator safety pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441284U true CN202441284U (en) | 2012-09-19 |
Family
ID=46822737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200783243U Expired - Fee Related CN202441284U (en) | 2012-03-05 | 2012-03-05 | Pressing-type steel ball self-locking elevator safety pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441284U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675114A (en) * | 2018-07-25 | 2018-10-19 | 江苏如东联丰石油机械有限公司 | A kind of single auxiliary elevator Bolt with latching action |
| CN110325704A (en) * | 2016-10-14 | 2019-10-11 | 卡乌斯博瑞利斯私人有限公司 | Pipe fitting or rod piece lifting device |
-
2012
- 2012-03-05 CN CN2012200783243U patent/CN202441284U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110325704A (en) * | 2016-10-14 | 2019-10-11 | 卡乌斯博瑞利斯私人有限公司 | Pipe fitting or rod piece lifting device |
| CN110325704B (en) * | 2016-10-14 | 2022-07-12 | 卡乌斯博瑞利斯私人有限公司 | Pipe or rod lifting device |
| CN108675114A (en) * | 2018-07-25 | 2018-10-19 | 江苏如东联丰石油机械有限公司 | A kind of single auxiliary elevator Bolt with latching action |
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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: 20120919 Termination date: 20140305 |