CN206513316U - Torsion type universal joint - Google Patents
Torsion type universal joint Download PDFInfo
- Publication number
- CN206513316U CN206513316U CN201621200821.0U CN201621200821U CN206513316U CN 206513316 U CN206513316 U CN 206513316U CN 201621200821 U CN201621200821 U CN 201621200821U CN 206513316 U CN206513316 U CN 206513316U
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- CN
- China
- Prior art keywords
- seal nipple
- steering knuckle
- top connection
- universal joint
- instrument
- 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.)
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Abstract
The utility model is related to oilfield drilling and production technology field, more particularly to a kind of torsion type universal joint, including top connection, sealing gasket, seal nipple, steering knuckle, lower contact；The top connection is threadedly coupled with the seal nipple, ball seat is carried in the seal nipple, the top of the steering knuckle carries bulb, the bulb is placed in the ball seat, the sealing gasket is provided between the top connection and the seal nipple, the lower contact is connected with the lower thread of the steering knuckle.Relative to prior art, the present apparatus is simple to operate, can transmit moment of torsion.It is convenient to turn to.During instrument tripping in, turning is run into.Steering knuckle meeting automatic bending so that instrument is passed through.Add pliability and the flexibility of instrument.
Description
Technical field
The utility model is related to oilfield drilling and production technology field, more particularly to a kind of torsion type universal joint.
Background technology
In order to improve oil, gas recovery ratio, domestic and international oil field more and more uses the drilling mode of horizontal well, and in level
In the completion mode of well, many wells select horizontal well in segments acid fracturing barefoot completion mode again, are implementing acid fracturing volume increase
In work progress, fluid pressure type back-off sub assume responsibility for by staged fracturing tool pipe string send into well and instrument complete it is setting after give up
Task.Existing joint can not be bent in well, and running into turning causes difficulty of going into the well.
Utility model content
The purpose of this utility model is to overcome the shortcomings of above-mentioned technology, and provides a kind of torsion type universal joint, structure
Simply, running into turning can turn.
The utility model to achieve the above object, using following technical scheme：A kind of torsion type universal joint, its feature exists
In：Including top connection, sealing gasket, seal nipple, steering knuckle, lower contact；The top connection connects with the seal nipple screw thread
Connect, ball seat carried in the seal nipple, the top of the steering knuckle carries bulb, and the bulb is placed in the ball seat,
The sealing gasket, the lower contact and the lower thread of the steering knuckle are provided between the top connection and the seal nipple
Connection.
The beneficial effects of the utility model are:Relative to prior art, the present apparatus is simple to operate, can transmit moment of torsion.Turn
To conveniently.During instrument tripping in, turning is run into.Steering knuckle meeting automatic bending so that instrument is passed through.Add work
The pliability of tool and flexibility.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model steering state.
Embodiment
Below in conjunction with the accompanying drawings and preferred embodiment describes embodiment of the present utility model in detail.Such as Fig. 1 and Fig. 2
It is shown, a kind of torsion type universal joint, including top connection 1, sealing gasket 2, seal nipple 3, steering knuckle 4, lower contact 5；It is described
Top connection is threadedly coupled with the seal nipple, and ball seat is carried in the seal nipple, and the top of the steering knuckle carries ball
Head, the bulb is placed in the ball seat, between the top connection and the seal nipple be provided with the sealing gasket, it is described under connect
Head is connected with the lower thread of the steering knuckle.
The present apparatus is simple to operate, can transmit moment of torsion.It is convenient to turn to.During instrument tripping in, turning is run into.Steering connects
Head meeting automatic bending so that instrument is passed through.Add pliability and the flexibility of instrument.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (1)
1. a kind of torsion type universal joint, it is characterised in that：Including top connection, sealing gasket, seal nipple, steering knuckle, under connect
Head；The top connection is threadedly coupled with the seal nipple, and ball seat, the top of the steering knuckle are carried in the seal nipple
With bulb, the bulb is placed in the ball seat, and the sealing gasket, institute are provided between the top connection and the seal nipple
The lower thread that lower contact is stated with the steering knuckle is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621200821.0U CN206513316U (en) | 2016-11-07 | 2016-11-07 | Torsion type universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621200821.0U CN206513316U (en) | 2016-11-07 | 2016-11-07 | Torsion type universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206513316U true CN206513316U (en) | 2017-09-22 |
Family
ID=59861596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621200821.0U Active CN206513316U (en) | 2016-11-07 | 2016-11-07 | Torsion type universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206513316U (en) |
-
2016
- 2016-11-07 CN CN201621200821.0U patent/CN206513316U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |