CN2871806Y - Locking safety elevator pin - Google Patents
Locking safety elevator pin Download PDFInfo
- Publication number
- CN2871806Y CN2871806Y CN 200620089221 CN200620089221U CN2871806Y CN 2871806 Y CN2871806 Y CN 2871806Y CN 200620089221 CN200620089221 CN 200620089221 CN 200620089221 U CN200620089221 U CN 200620089221U CN 2871806 Y CN2871806 Y CN 2871806Y
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- CN
- China
- Prior art keywords
- elevator pin
- spring
- screw
- rod
- utility
- 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 relates to a locking type safety elevator pin for oil-water well underground operation, which comprises a dovetail screw 1, a locking block 2, a spring 3 and an elevator pin rod 4, the upper end of the elevator pin rod 4 is connected with the dovetail screw 1 through a thread, the spring 3 is positioned above an upper rod round table between the rod 4 and the dovetail screw 1, the locking block 2 is threaded on the spring 3. With the advantages of simple structure, easy fabrication, easy operation, safety and reliability, the utility model can realize high strength locking, and installation, the disassembly is convenient, thus the time is saved. The utility model is suitable for application in oil-water well underground operation construction.
Description
Technical field:
The utility model relates to a kind of special tool that is used for the workover treatment of oilfield oil well down-hole.
Background technology:
The elevator pin is to be used to guarantee to remove safe special tool in the oil-water well down-hole workover treatment process.At present, be magnetic basically two kinds of elevator pin and fixed elevator pins of the elevator pin that uses of underground work job site.Magnetic elevator pin is simple and efficient to handle, but cost of manufacture is higher, and since repeatedly remove in the process because of the vibrations demagnetization with and on the greasy dirt that adheres to its magnetic weakened gradually even disappear, thereby cause hidden danger, make the complexity of using increase because of when operating, also tying up safety rope again, thereby this type of elevator pin does not re-use at present basically, fixed elevator latch structure is simple, safe and reliable, but in work progress, need loaded down with trivial details ground to unload screw and wear cottor pin, if in constructing operation, run into emergency or complicated working procedures such as blowout, use extremely inconvenience, and can waste time.In addition, opening pin and screw very easily cause distortion or damage in the rountrip process, cause difficulty to dismounting, and the phenomenon that has not the turn of the screw of operative employee not wear the opening pin in order to save trouble in practical operation takes place, and causes a hidden trouble to construction safety.
Summary of the invention:
The purpose of this utility model is to provide a kind of locking type safety jaw bayonet lock of safe and convenient practicality.
The utility model is to realize like this.This kind elevator pin is made up of dovetail screw, latch segment, spring and elevator pin rod body, and elevator pin rod body upper end is provided with latch segment and spring therebetween with screw thread and dovetail screw tightening.Remove in the oil pipe process in oil-water well underground work, hang up properly suspension ring, this elevator pin rod body is inserted in the elevator hole, then, screw the dovetail screw on this elevator pin top, can realize locking, guarantee to remove oil pipe safety.When dismantling the well head elevator, unscrew top dovetail screw, apply a power downwards, the elevator pin can be taken out, when reusing, repeat the aforesaid operations process and get final product.
The utility model is simple in structure, is easy to make, and is easy for operation, safe and reliable, utilize it can realize high strength locking, install, and dismounting is quick, saves time, and is suitable in oil-water well underground work construction and applies.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
As shown in the figure, the utility model is made up of dovetail screw 1, latch segment 2, spring 3, elevator pin rod 4, its structure, annexation are as follows: elevator pin rod body 4 upper ends are connected with dovetail screw 1 with screw thread, round platform top, body of rod top between the body of rod 4 and the dovetail screw 1 is set with spring 3, and spring 3 tops are installed with latch segment 2 with screw thread.Wherein, elevator pin rod body 4 is the round bar body of a diameter 18mm, and its top is provided with a semicircle platform and half slope that latch segment 2 and spring 3 usefulness are installed, and the upper end is threaded, and the bottom is made and drawn the oblique taper shape of using.Dovetail screw 1 is the swallow-tail form screw of Φ 14.Latch segment 2 is anisopleural eccentric short pipe body, and one side bottom surface is straight, and the opposite side bottom surface is a ramped shaped, matches with the body of rod 4 tops half slope, and inside and outside disc is respectively equipped with screw thread.Spring 3 materials are 30CrMo, internal diameter 15mm, high 15mm.
Claims (1)
1, a kind of locking type safety jaw bayonet lock, form by dovetail screw (1), latch segment (2), spring (3), elevator pin rod (4), it is characterized in that: elevator pin rod body (4) upper end is connected with dovetail screw (1) with screw thread, round platform top, body of rod top between the body of rod (4) and the dovetail screw (1) is set with spring (3), and spring (3) top is installed with latch segment (2) with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089221 CN2871806Y (en) | 2006-02-10 | 2006-02-10 | Locking safety elevator pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089221 CN2871806Y (en) | 2006-02-10 | 2006-02-10 | Locking safety elevator pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2871806Y true CN2871806Y (en) | 2007-02-21 |
Family
ID=37740152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620089221 Expired - Fee Related CN2871806Y (en) | 2006-02-10 | 2006-02-10 | Locking safety elevator pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2871806Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306615A (en) * | 2013-06-16 | 2013-09-18 | 慕武 | Novel safety elevator pin |
-
2006
- 2006-02-10 CN CN 200620089221 patent/CN2871806Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306615A (en) * | 2013-06-16 | 2013-09-18 | 慕武 | Novel safety elevator pin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070221 Termination date: 20100210 |