CN205225190U - Leak resistance threshold switch instrument with centralizer - Google Patents
Leak resistance threshold switch instrument with centralizer Download PDFInfo
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- CN205225190U CN205225190U CN201521112121.1U CN201521112121U CN205225190U CN 205225190 U CN205225190 U CN 205225190U CN 201521112121 U CN201521112121 U CN 201521112121U CN 205225190 U CN205225190 U CN 205225190U
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- top connection
- centralizer
- shift key
- leak
- lower contact
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Abstract
The utility model discloses a leak resistance threshold switch instrument with centralizer, including top connection and lower clutch, lower connector thread connects at the top connection lower extreme, is provided with a plurality of groups shift key around the body of top connection, when the shift key receives the pressure that comes from the top connection direction, towards the removal of lower clutch direction, warp by the oppression of the pipe wall of lower clutch and reduce the external diameter, the top connection is connected with rights the joint, the lower clutch is connected with down rights the joint, centers on on right the body that connects with rightting the joint down and be provided with the elasticity centralizer, the centralizer is provided with a plurality of bellied arc -shaped elastic pieces, the external diameter of centralizer is greater than the external diameter of shift key. The centralizer wear the cover last right connect with right the body of joint down on, shell fragment on the centralizer is the body formation of cutting apart the centralizer, the centralizer both ends remain one section body respectively, the material of centralizer adopts the spring steel.
Description
Technical field
The utility model relates to a kind of leak-resistance valve switching tools with centralizer, for the leak-resistance valve of oil drilling and field produces aspect, belongs to technical field of petroleum downhole equipment.
Background technology
In order to the workover treatment of the exploitation and Oil/gas Well that complete petroleum gas, must ensure that the switch motion of leak-resistance valve is carried out safely smoothly.Leak-resistance valve switching tools of the prior art as shown in Figure 1, this switching tools 14 comprises supporting positive cover 14-1, mesh sleeve 14-4 and lower supporting positive cover 14-9, mesh sleeve 14-4 inside is provided with tubulose mandrel 14-5, and mandrel 14-5 is threaded with upper supporting positive cover 14-1 and lower supporting positive cover 14-9.With the groove of axis on upper supporting positive cover 14-1 and lower supporting positive cover 14-9 outer wall, upper supporting positive cover 14-1 and lower supporting positive cover 14-9 can play maintained switch instrument 14 moving direction, prevent the effect of eccentric wear.
With several partitioning slot on the barrel of mesh sleeve 14-4, being provided with boss 14-11 in the middle part of mesh sleeve 14-4 barrel, with inclined-plane, can match with the boss that leak-resistance valve Elastic refers in this boss 14-11 both sides.
But the upper supporting positive cover 14-1 in this switching tools and lower supporting positive cover 14-9 does not have elasticity compressive deformation ability, and external diameter is less than mesh sleeve 14-4, righting effect and prevent eccentric wear effect undesirable.
Utility model content
For problems of the prior art, the purpose of this utility model is to provide a kind of leak-resistance valve switching tools with centralizer, centralizer has elasticity compressive deformation ability, the utility model can by with the coordinating of leak-resistance valve structure, realize the switch motion of leak-resistance valve, and solve closedown filling sliding sleeve was opened or missed to switching tools problem by filling sliding sleeve mistiming.
To achieve these goals, the utility model is by the following technical solutions:
A kind of leak-resistance valve switching tools with centralizer, comprise top connection and lower contact, lower contact is threaded in top connection lower end, body around top connection is provided with some groups of shift keies, when described shift key is subject to the pressure from top connection direction, move towards lower contact direction, by the tube wall of lower contact compressing distortion reduced outside diameter; Described top connection is connected with righting joint, described lower contact is connected with lower righting joint, body around described upper righting joint and lower righting joint is provided with elastic centralizer, described centralizer is provided with the arc spring lamination of some projections, and the external diameter of described centralizer is greater than the external diameter of described shift key.
Further, described centralizer is set on the body of righting joint and lower righting joint, and the shell fragment on centralizer is that the body of segmentation centralizer is formed, and centralizer two ends retain one section of body respectively, and the material of described centralizer adopts spring steel.
Further, the body upper sleeve through of described top connection has lock tube, and one section of this lock tube has gap between body and the body of top connection, holds the upper end of described shift key.
Further, the body of described top connection is provided with mounting groove and described shift key is installed, one section of body of described lower contact upper end is set on the body of described top connection, has the lower end that gap holds described shift key between the place's of wearing top connection and the body of lower contact.
Further, the body upper sleeve through of described top connection has shearing ring, and this shearing ring is arranged in the gap that lower contact body wears the formation of top connection body, and described shearing ring stops described shift key to move towards lower contact direction; Described shearing ring is fixed on the body of top connection by safety pin, and when leak-resistance valve switching tools is stuck, described shift key forces shearing ring to cut off described safety pin, allows shift key to move towards lower contact direction.
Further, between described shift key and the body of top connection, be provided with back-moving spring, locating slot be set inside described shift key and fix described back-moving spring.
Further, the axis of top connection described in the axes normal of described back-moving spring, often organizes inside shift key and arranges 2 described back-moving springs.
Further, described upper righting upper end of joint is provided with internal thread, and described lower righting joint lower end is provided with external screw thread.
Further, described upper righting joint is threaded with top connection, and described lower righting joint is threaded with lower contact, and junction is provided with anti-turn screw, and is equipped with O type rubber seal.
Further, the connection of thread of described top connection and lower contact is provided with anti-turn screw, and is equipped with O type rubber seal.
The leak-resistance valve switching tools with centralizer adopting said structure to arrange has the following advantages:
The utility model is up and down with the elastic centralizer of two spring steel materials, switching tools can be ensured between two parties by leak-resistance valve and filling sliding sleeve, under the prerequisite of normal opening and closing operation realizing leak-resistance valve, solve switching tools opens or closes filling sliding sleeve problem by filling sliding sleeve mistiming.
Being threaded between top connection with upper righting joint, and being furnished with anti-turn screw, and is be threaded between lock tube; With spring eye on shift key, and be equipped with two springs, ensure that shift key can compress and recover, and realization and the engaging and slipping out of the hand of leak-resistance valve.
Be threaded between lower contact with top connection, be threaded with between lower righting joint, and be all furnished with anti-turn screw.Connection of thread between top connection, upper righting joint, lower contact, lower righting joint has O type rubber seal to realize sealing, and during guarantee packing job, cycle operation carries out smoothly.
The utility model than before switching tools, easier in structure, turn increase rubber seal, shorten length simultaneously, add the alternative of the insertion polishing length of tube that switching tools lower end connects.
Accompanying drawing explanation
Fig. 1 is the front view of leak-resistance valve switching tools in prior art;
Fig. 2 is front view of the present utility model;
Fig. 3 is the sectional view along A-A in Fig. 2;
Fig. 4 is the partial enlarged view in Fig. 2.
In figure: 1. go up righting joint; 2. top connection; 3. lock tube; 4. spring; 5. shift key; 6. shearing ring; 7. safety pin; 8. lower contact; 9. descend righting joint; 10. anti-turn screw; 11. centralizers; 12. sealing rings; 13. sealing rings.
14, switching tools; 14-1, upper supporting positive cover; 14-2, to help pull a cart; 14-3, fixed cover; 14-4, mesh sleeve; 14-5, mandrel; 14-6, sheath; 14-7, hold-down nut; 14-8, spring; 14-9, lower supporting positive cover; 14-10, stopping screw; 14-11, boss.
Detailed description of the invention
For further setting forth the utility model for the technological means that reaches predetermined technique object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, structure of the present utility model, feature and effect are described in detail as follows.
Be an embodiment of the present utility model as shown in Figure 2 and Figure 3, with the leak-resistance valve switching tools of centralizer in this embodiment, comprise top connection 2 and lower contact 8, lower contact 8 is threaded in top connection 2 lower end, body around top connection 2 is provided with some groups of shift keies 5, when shift key 5 is subject to the pressure from top connection 2 direction, move towards lower contact 8 direction, by the tube wall of lower contact 8 compressing distortion reduced outside diameter; Top connection 2 is connected with righting joint 1, lower contact 8 is connected with lower righting joint 9, body around upper righting joint 1 and lower righting joint 9 is provided with elastic centralizer 11, and centralizer 11 is provided with the arc spring lamination of some projections, and the external diameter of centralizer 11 is greater than the external diameter of shift key 5.
The structure of shift key 5 and the similar of mesh sleeve of the prior art, be all with several partitioning slot on barrel, be provided with boss in the middle part of shift key 5, with inclined-plane, can match with the boss that leak-resistance valve Elastic refers in these boss both sides.
Centralizer 11 is set on the body of righting joint 1 and lower righting joint 9, and the shell fragment on centralizer 11 is that the body of segmentation centralizer 11 is formed, and centralizer 11 two ends retain one section of body respectively, and the material of centralizer 11 adopts spring steel.
Elastic centralizer structure is main points of the present utility model, placed in the middle when can ensure that switching tools passes through leak-resistance valve, thus the stable opening and closing realizing leak-resistance valve, can ensure that again switching tools is by can not open or close filling sliding sleeve during filling sliding sleeve by mistake.
The body upper sleeve through of top connection 2 has lock tube 3, has gap between one section of body of this lock tube 3 and the body of top connection 2, holds the upper end of shift key 5.Lock tube 3 be threaded be fixed on top connection 2 body on.
The body of top connection 2 is provided with mounting groove and installs shift key 5, one section of body of lower contact 8 upper end is set on the body of top connection 2, has the lower end that gap holds shift key 5 between the place's of wearing top connection 2 and the body of lower contact 8.The external diameter at mounting groove position is less than the external diameter at other positions of body of top connection 2.
The body upper sleeve through of top connection 2 has shearing ring 6, and this shearing ring 6 is arranged in the gap that lower contact 8 body wears the formation of top connection 2 body, and shearing ring 6 stops shift key 5 to move towards lower contact 8 direction; Shearing ring 6 is fixed on the body of top connection 2 by safety pin 7, and when leak-resistance valve switching tools is stuck, shift key 5 forces shearing ring 6 to cut off safety pin 7, allows shift key 5 to move towards lower contact 8 direction.
On carry in process, if shift key 5 middle bench is carried on being stuck and can not continuing, safety pin 6 can be cut off, and shift key 5 relatively top connection 2 moves down, and when middle part boss runs into lower contact 8, ramp effect lower convex platform compresses, and ensures that switching tools is slipped out of the hand smoothly.
Be provided with back-moving spring 4 between the body of shift key 5 and top connection 2, locating slot fixed reset spring 4 is set inside shift key 5.
The axis of the axes normal top connection 2 of back-moving spring 4, often organizes inside shift key 5 and can arrange 2 back-moving springs 4.When shift key 5 slides, back-moving spring 4 can follow movement.
Upper righting joint 1 upper end is provided with internal thread, and lower righting joint 9 lower end is provided with external screw thread, for connecting other pipe fittings.
Upper righting joint 1 is threaded with top connection 2, and lower righting joint 9 is threaded with lower contact 8, is provided with anti-turn screw 10 in junction, and is equipped with O type rubber seal 13.
Top connection 2 is provided with anti-turn screw 10 with the connection of thread of lower contact 8, and is equipped with O type rubber seal 12.
Lower contact 8 inside is provided with bulge loop, blocks top connection 2 and lower righting joint 9 respectively, can realize the firm connection of three.
Described just in order to the utility model is described above, be construed as the utility model and be not limited to above embodiment, meet the various variants of the utility model thought all within protection domain of the present utility model.
Claims (10)
1. the leak-resistance valve switching tools with centralizer, comprise top connection and lower contact, lower contact is threaded in top connection lower end, body around top connection is provided with some groups of shift keies, when described shift key is subject to the pressure from top connection direction, move towards lower contact direction, by the tube wall of lower contact compressing distortion reduced outside diameter; It is characterized in that, described top connection is connected with righting joint, described lower contact is connected with lower righting joint, body around described upper righting joint and lower righting joint is provided with elastic centralizer, described centralizer is provided with the arc spring lamination of some projections, and the external diameter of described centralizer is greater than the external diameter of described shift key.
2. leak-resistance valve switching tools as claimed in claim 1, it is characterized in that, described centralizer is set on the body of righting joint and lower righting joint, shell fragment on centralizer is that the body of segmentation centralizer is formed, centralizer two ends retain one section of body respectively, and the material of described centralizer adopts spring steel.
3. leak-resistance valve switching tools as claimed in claim 1, it is characterized in that, the body upper sleeve through of described top connection has lock tube, and one section of this lock tube has gap between body and the body of top connection, holds the upper end of described shift key.
4. leak-resistance valve switching tools as claimed in claim 1, it is characterized in that, the body of described top connection is provided with mounting groove and described shift key is installed, one section of body of described lower contact upper end is set on the body of described top connection, has the lower end that gap holds described shift key between the place's of wearing top connection and the body of lower contact.
5. leak-resistance valve switching tools as claimed in claim 4, it is characterized in that, the body upper sleeve through of described top connection has shearing ring, and this shearing ring is arranged in the gap that lower contact body wears the formation of top connection body, and described shearing ring stops described shift key to move towards lower contact direction; Described shearing ring is fixed on the body of top connection by safety pin, and when leak-resistance valve switching tools is stuck, described shift key forces shearing ring to cut off described safety pin, allows shift key to move towards lower contact direction.
6. leak-resistance valve switching tools as claimed in claim 1, is characterized in that, be provided with back-moving spring between described shift key and the body of top connection, arrange locating slot and fix described back-moving spring inside described shift key.
7. leak-resistance valve switching tools as claimed in claim 6, is characterized in that, the axis of top connection described in the axes normal of described back-moving spring, often organizes inside shift key and arranges 2 described back-moving springs.
8. leak-resistance valve switching tools as claimed in claim 1, it is characterized in that, described upper righting upper end of joint is provided with internal thread, and described lower righting joint lower end is provided with external screw thread.
9. leak-resistance valve switching tools as claimed in claim 1, it is characterized in that, described upper righting joint is threaded with top connection, and described lower righting joint is threaded with lower contact, and junction is provided with anti-turn screw, and is equipped with O type rubber seal.
10. leak-resistance valve switching tools as claimed in claim 1, it is characterized in that, the connection of thread of described top connection and lower contact is provided with anti-turn screw, and is equipped with O type rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521112121.1U CN205225190U (en) | 2015-12-29 | 2015-12-29 | Leak resistance threshold switch instrument with centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521112121.1U CN205225190U (en) | 2015-12-29 | 2015-12-29 | Leak resistance threshold switch instrument with centralizer |
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| Publication Number | Publication Date |
|---|---|
| CN205225190U true CN205225190U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521112121.1U Active CN205225190U (en) | 2015-12-29 | 2015-12-29 | Leak resistance threshold switch instrument with centralizer |
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| Country | Link |
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| CN (1) | CN205225190U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442897A (en) * | 2018-03-15 | 2018-08-24 | 中国电建集团成都勘测设计研究院有限公司 | Clinometer probe fisher |
| CN110359861A (en) * | 2018-03-21 | 2019-10-22 | 西南石油大学 | A kind of horizontal well meets card and can bounce back centralizer |
-
2015
- 2015-12-29 CN CN201521112121.1U patent/CN205225190U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442897A (en) * | 2018-03-15 | 2018-08-24 | 中国电建集团成都勘测设计研究院有限公司 | Clinometer probe fisher |
| CN110359861A (en) * | 2018-03-21 | 2019-10-22 | 西南石油大学 | A kind of horizontal well meets card and can bounce back centralizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170904 Address after: 400800, Pingshan Industrial Zone, Wansheng, Chongqing Patentee after: Chongqing peak energy technology Co., Ltd. Address before: 100088, Room 403, building A, building 18, North Taiping Road, Haidian District, Beijing Patentee before: Baoji Yuanheng Petroleum Equipment Co., Ltd. |
|
| TR01 | Transfer of patent right |