CN208900041U - A kind of fixed length telescopic oil tube pipe nipple - Google Patents
A kind of fixed length telescopic oil tube pipe nipple Download PDFInfo
- Publication number
- CN208900041U CN208900041U CN201821733925.7U CN201821733925U CN208900041U CN 208900041 U CN208900041 U CN 208900041U CN 201821733925 U CN201821733925 U CN 201821733925U CN 208900041 U CN208900041 U CN 208900041U
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- Prior art keywords
- outer tube
- tube
- closing piece
- hole
- sliding sleeve
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Abstract
The utility model belongs to underground operation tool field, more particularly to a kind of fixed length telescopic oil tube pipe nipple, including inner and outer tubes, inner tube is inserted into outer tube, the lower end of the outer tube is provided with sliding sleeve and plug, the two is connected through a screw thread into the outside that a whole rear enclosure is mounted in outer tube, through-hole is provided on the tube wall of the outer tube lower end, being equipped in through-hole can be in through-hole along the closing piece of outer tube moved radially, the inside of outer tube and the closing piece are correspondingly arranged on the slot of giving up the throne for allowing closing piece to shift, from top to bottom spaced set has locked groove corresponding with the closing piece in the outside of the inner tube.The utility model is by being arranged using closing piece and locked groove as the locking mechanism of core, the adjustment of discrete type fixed length can be carried out to the length that scalable oil pipe is shorted, and it after the adjustment again will be fixed between inner and outer tubes, the application range for having expanded scalable tubing nipple significantly keeps Downhole Construction more convenient.
Description
Technical field
The utility model belongs to underground operation tool technical field of tools more particularly to a kind of fixed length telescopic oil tube pipe nipple.
Background technique
Scalable oil pipe short circuit is common a kind of tool in oilfield downhole operation, currently, scalable oil pipe is shorted mostly
It is only able to achieve free extension function, and can not achieve the adjustment of collapsing length, this severely limits being applicable in for scalable short circuit
Range.
Utility model content
The utility model provides a kind of fixed length telescopic oil tube pipe nipple, to solve the problems mentioned in the above background technology.
The technical problem solved by the utility model is implemented by the following technical solutions: the utility model provides one kind
Fixed length telescopic oil tube pipe nipple, including inner and outer tubes, inner tube are inserted into outer tube, by the coincidence length for changing inner and outer tubes
The adjustment of collapsing length can be achieved, the lower end of the outer tube is provided with sliding sleeve and plug, and the two is connected through a screw thread into one
Whole rear enclosure is mounted in the outside of outer tube, is provided with position-limitting pin on the outside of outer tube, position-limitting pin is threadedly attached in outer tube
Side is provided with spring in the annular space between outer tube and sliding sleeve, and the upper end of spring is against on sliding sleeve, and the lower end of spring is against
On the position-limitting pin, through-hole is provided on the tube wall of the outer tube lower end, being equipped in through-hole can be in through-hole along outer
The closing piece of pipe moved radially, the inside of outer tube and the closing piece are correspondingly arranged on the slot of giving up the throne for allowing closing piece to shift,
From top to bottom spaced set has locked groove corresponding with the closing piece in the outside of the inner tube, and the position-limitting pin passes through
The fabrication hole being provided on sliding sleeve is mounted on outer tube.
The seam crossing of the outer tube and sliding sleeve upper end is provided with flat hole, and being correspondingly arranged on flat hole can drive sliding sleeve to move down
Key.
The utility model has the following beneficial effects: the utility model is by being arranged using closing piece and locked groove as the locked machine of core
Structure can carry out the adjustment of discrete type fixed length to the length that scalable oil pipe is shorted, and after the adjustment again will be between inner and outer tubes
It is fixed, the application range of scalable tubing nipple has been expanded significantly, keeps Downhole Construction more convenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial enlarged view in Fig. 1 at B；
Fig. 3 is the structural schematic diagram of key；
Fig. 4 be in Fig. 1 A to direction view
In figure, 1- inner tube, 2- locked groove, 3- plug, 4- sliding sleeve, 5- outer tube, the flat hole 6-, 7- spring, 8- position-limitting pin, 9- lock
Block, 10- key head, 11- give up the throne slot.
Specific embodiment
The utility model is described further below in conjunction with attached drawing:
The present embodiment includes inner tube 1 and outer tube 5, and inner tube 1 is inserted into outer tube 5, by the weight for changing inner tube 1 and outer tube 5
The adjustment of collapsing length can be realized by closing length.The above are common structures in the prior art, and details are not described herein.
The lower end of the outer tube 5 is provided with sliding sleeve 4 and plug 3, and the two is set with after being connected through a screw thread into an entirety
In the outside of outer tube 5, the outside of outer tube 5 is provided with position-limitting pin 8, and position-limitting pin 8 is threadedly attached in the side of outer tube 5,
Spring 7 is provided in annular space between outer tube 5 and sliding sleeve 4, the upper end of spring 7 is against on sliding sleeve 4, and the lower end of spring 7 is supported
On the position-limitting pin 8.Wherein, position-limitting pin 8 is for limiting the lower end of spring 7.
It is provided with through-hole on the tube wall of 5 lower end of outer tube, being equipped in through-hole can be in through-hole along the radial direction of outer tube 5
Mobile closing piece 9, the inside of outer tube 5 and the closing piece 9 are correspondingly arranged on the slot 11 of giving up the throne for allowing closing piece 9 to shift, and move back
Position slot 11 is annular groove, and from top to bottom spaced set has locked groove 2 corresponding with the closing piece 9 in the outside of the inner tube 1.
When position shown in Fig. 1, inner tube 1 and outer tube 5 are in locking state, when carrying out flexible adjustment, make under sliding sleeve 4 by external force
It moves, until the slot 11 of giving up the throne is corresponding with closing piece 9, after moving inner tube 1 at this time, closing piece 9 is moved radially to the slot of giving up the throne
In 11, the locking between inner tube 1 and outer tube 5 is released from, and can carry out length adjustment at this time.After the completion of adjustment, make 9 weight of closing piece
In new some locked groove 2 into inner tube 1, inner tube 1 and outer tube 5 can be made to lock herein.
The position-limitting pin 8 is mounted on outer tube 5 by the fabrication hole being provided on sliding sleeve 4, fabrication hole in figure not
It shows.
The seam crossing of the outer tube 5 and 4 upper end of sliding sleeve is provided with flat hole 6, and sliding sleeve can be driven by being correspondingly arranged on flat hole 6
4 keys moved down.This measure can make the movement of sliding sleeve 4 more laborsaving.In use, key head 10 is inserted in flat hole 6, then turn
Dynamic key, sliding sleeve 4 will under the supporting role of key downlink, to reach labour-saving purpose.
The utility model is the locking mechanism of core by being arranged with closing piece 9 and locked groove 2, can be shorted to scalable oil pipe
Length carries out the adjustment of discrete type fixed length, and after the adjustment again will be fixed between inner tube 1 and outer tube 5, has expanded significantly scalable
The application range of tubing nipple keeps Downhole Construction more convenient.
The maximum gauge of the outer tube 5 is identical as the maximum gauge of sliding sleeve 4, and sliding sleeve can be prevented during going into the well by the borehole wall
Scraping collision causes closing piece 9 to be triggered.
Claims (2)
1. a kind of fixed length telescopic oil tube pipe nipple, including inner tube (1) and outer tube (5), inner tube (1) is inserted into outer tube (5), by changing
The coincidence length of change inner tube (1) and outer tube (5) can realize the adjustment of collapsing length, it is characterised in that: under the outer tube (5)
End is provided with sliding sleeve (4) and plug (3), and the two is connected through a screw thread into the outside that a whole rear enclosure is mounted in outer tube (5), outer tube
(5) it is provided on the outside of position-limitting pin (8), position-limitting pin (8) is threadedly attached in the side of outer tube (5), outer tube (5) and cunning
It is provided with spring (7) in annular space between set (4), the upper end of spring (7) is against on sliding sleeve (4), and the lower end of spring (7) is supported
On the position-limitting pin (8), it is provided with through-hole on the tube wall of the outer tube (5) lower end, being equipped in through-hole can be logical
Along the closing piece (9) of outer tube (5) moved radially in hole, the inside of outer tube (5) is correspondingly arranged on the closing piece (9) for holding
Perhaps the slot of giving up the throne (11) of closing piece (9) displacement, from top to bottom spaced set has and the closing piece in the outside of the inner tube (1)
(9) corresponding locked groove (2), the position-limitting pin (8) are mounted on outer tube (5) by the fabrication hole being provided on sliding sleeve (4).
2. a kind of fixed length telescopic oil tube pipe nipple according to claim 1, it is characterised in that: the outer tube (5) and sliding sleeve
(4) seam crossing of upper end is provided with flat hole (6), is correspondingly arranged on the key that sliding sleeve (4) can be driven to move down with flat hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821733925.7U CN208900041U (en) | 2018-10-25 | 2018-10-25 | A kind of fixed length telescopic oil tube pipe nipple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821733925.7U CN208900041U (en) | 2018-10-25 | 2018-10-25 | A kind of fixed length telescopic oil tube pipe nipple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208900041U true CN208900041U (en) | 2019-05-24 |
Family
ID=66576709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821733925.7U Active CN208900041U (en) | 2018-10-25 | 2018-10-25 | A kind of fixed length telescopic oil tube pipe nipple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208900041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065292A (en) * | 2020-09-09 | 2020-12-11 | 席赫 | Crude oil extraction pipe |
-
2018
- 2018-10-25 CN CN201821733925.7U patent/CN208900041U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065292A (en) * | 2020-09-09 | 2020-12-11 | 席赫 | Crude oil extraction pipe |
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