CN204200172U - Track slideway type compression relief cock - Google Patents
Track slideway type compression relief cock Download PDFInfo
- Publication number
- CN204200172U CN204200172U CN201420676332.7U CN201420676332U CN204200172U CN 204200172 U CN204200172 U CN 204200172U CN 201420676332 U CN201420676332 U CN 201420676332U CN 204200172 U CN204200172 U CN 204200172U
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- track
- straight trough
- cylindrical section
- plane
- outer tube
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Abstract
The utility model relates to a kind of track slideway type compression relief cock, comprise two outer tubes and be located at the track core pipe in outer tube, slideway post box cupling is utilized to be connected and fixed between two outer tubes, track core pipe is made up of top particle size cylindrical section and bottom thin footpath cylindrical section, thin footpath, bottom cylindrical section is provided with the radial direction through hole communicated with its axially extending bore, on top particle size cylindrical section corresponding slideway post box cupling inwall, convex slide block is provided with track groove, the upper groove of track groove is made up of equally distributed two groups of grooves, often organize groove and there is a long straight trough and a short straight trough and adjacent long straight trough is connected transition with the inclined-plane I utilized respectively between short straight trough in the same way, lower channel is made up of equally distributed four bottom straight troughs and utilizes inclined-plane II in the same way to connect transition between adjacent bottom straight trough respectively, inclined-plane I and position, inclined-plane II are staggered and incline direction is contrary.Which prevent tubing string upwards vibration in Plastic renovation casing deformation well technique, ensure that work progress carries out smoothly, dependable performance.
Description
Technical field
the utility model belongs to oil well oil conduit post inner high voltage liquid compression relief cock, particularly a kind of key equipment being used for oil well necking deformation shaping set of tools, i.e. track slideway type compression relief cock
.
Technical background
Oil well casing distortion (becoming hereinafter referred to as cover) is the practical problem that oil well often runs into, current a kind of new hydraulic shaping is repaired in the work progress of casing deformation well technique, the high-pressure and hydraulic medium by cover becomes in shaping device and in oil pipe is needed to drain, compression relief cock is that cover becomes the key component be shaped in complete equipment, in well workover process, equipment below compression relief cock and oil well casing are relatively-stationary, compression relief cock top is connected with tubing string, tubing string has the liquid of high pressure during in inside, the liquid of high pressure to tubing string have one larger to lifting force, when oil well is more shallow, the lighter in weight of oil pipe, make the easy upwards vibration of oil pipe, cause and construct unsuccessfully.
Summary of the invention
The purpose of this utility model be in order to provide a kind of prevent tubing string in Plastic renovation casing deformation well technique upwards vibration, ensure that work progress carries out smoothly, the track slideway type compression relief cock of dependable performance
.
The technical solution of the utility model is:
A kind of track slideway type compression relief cock, comprise outer tube and be located at the track core pipe in outer tube, it is characterized in that: the quantity of described outer tube is two, slideway post box cupling is utilized to be connected and fixed between two outer tubes, the outer sleeve upper on top has been threaded top connection, the outer tube lower end of bottom has been threaded lower box cupling, described track core pipe is made up of top particle size cylindrical section and bottom thin footpath cylindrical section, axially extending bore is provided with in the middle of it, thin footpath, described bottom cylindrical section is provided with the multiple radial direction through hole communicated with axially extending bore, cylindrical section lower end, thin footpath, described bottom reaches between the cylindrical section of outside lower box cupling and the inner groove of lower box cupling and bottom thin footpath and arranges lip ring, and annular plug is installed outside lip ring fixes, the lower end of thin footpath, described bottom cylindrical section has been threaded lower contact, two convex slide blocks are along the circumferential direction arranged with in the middle part of described slideway post box cupling inwall, the corresponding convex slide block of top particle size cylindrical section of described track core pipe is provided with track groove, described track groove by be located at respectively particle size cylindrical section two ends, top and be communicated with upper, lower channel forms, upper groove is made up of along the circumferential direction equally distributed two groups of grooves, often organize groove and there is a long straight trough and a short straight trough and adjacent long straight trough is connected transition with the inclined-plane I utilized respectively between short straight trough in the same way, described short straight trough is positioned on the symmetrical plane of two long straight troughs, lower channel is formed by along the circumferential direction equally distributed four bottom straight troughs and is utilized inclined-plane II in the same way to connect transition between adjacent bottom straight trough respectively, described bottom straight trough is positioned on the symmetrical plane of long straight trough and short straight trough, described inclined-plane I and position, inclined-plane II are staggered and incline direction is contrary.
Above-mentioned track slideway type compression relief cock; the lower end of described long and short straight trough communicates with bottom straight trough respectively by inclined-plane I and inclined-plane II; described long straight trough upper end extends to the upper end of the top particle size cylindrical section of track core pipe, and described short straight trough upper end cut-off is to the middle part of the top particle size cylindrical section of track core pipe.
Above-mentioned track slideway type compression relief cock, the position between the corresponding annular plug of thin footpath, bottom cylindrical section of described track core pipe and lower contact is set with stay pipe.
Above-mentioned track slideway type compression relief cock, described slideway post box cupling two ends respectively in be provided with straight mouth, described straight mouth end is provided with internal thread, and the end of described outer tube corresponding slideway post box cupling is provided with external screw thread, to realize being threaded.
Above-mentioned track slideway type compression relief cock, is provided with two ring-shaped grooves, is respectively equipped with O-ring seal in described ring-shaped groove above the external screw thread of described outer tube.
Above-mentioned track slideway type compression relief cock; the upper end of the outer tube on top is provided with internal thread; described top connection is provided with external screw thread corresponding thereto; the externally threaded top of top connection is provided with annular shoulder; the end contact of the outer tube on described annular shoulder and top and be provided with ring-shaped groove on the contact surface; be provided with O-ring seal in described ring-shaped groove, the top of described top connection is provided with the internal thread for being connected with the oil pipe of outside oil well.
Above-mentioned track slideway type compression relief cock; the lower end of the outer tube of bottom is provided with internal thread; described lower box cupling is provided with the external screw thread corresponding with it; the externally threaded below of lower box cupling is provided with annular shoulder; the end contact of the outer tube of described annular shoulder and bottom and be provided with ring-shaped groove on the contact surface, is provided with O-ring seal in described ring-shaped groove.
Above-mentioned track slideway type compression relief cock, the bottom of described lower contact is provided with the external screw thread for being connected with external equipment.
Above-mentioned track slideway type compression relief cock, the degree of depth of described track groove is identical.
The beneficial effects of the utility model are:
1, because two convex slide blocks of slideway post box cupling slide all the time in the track groove of track core pipe, then by the motion of the track restriction slideway post box cupling of track groove, thus the relative radial direction through hole on track core pipe that makes exposes or is hidden in outer tube.When radial direction through hole exposes, track core pipe inside is connected with the external world, when there is highly pressurised liquid its inside, by radial direction through hole release inside liquid and pressure;
2, the Trajectory Design of track groove is unique, prevents tubing string upwards vibration in Plastic renovation casing deformation well technique.Specifically, convex slide block slides to bottom straight trough by long straight trough through inclined-plane I and inclined-plane II, realize airtight to radial direction through hole, when in work progress, highly pressurised liquid to tubing string produce large to lifting force time, convex slide block slides to the short straight trough adjacent with long straight trough by bottom straight trough through inclined-plane II and inclined-plane I and is locked to short straight trough upper end, prevents convex slide block from continuing to move up, avoid radial direction through hole to expose, thus ensure that work progress carries out smoothly; When needing pressure release, external force is applied to convex slide block and makes it slide to another bottom straight trough along inclined-plane I and inclined-plane II, then slide to another long straight trough upper end by bottom straight trough through inclined-plane II and inclined-plane I, the radial direction through hole on track core pipe is exposed, realizes pressure release action.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of Fig. 1 middle slideway post box cupling;
Fig. 3 be Fig. 2 along A-A to sectional drawing;
Fig. 4 be Fig. 2 along B-B to sectional drawing;
Fig. 5 is the structural representation of track core pipe in Fig. 1;
Fig. 6 be Fig. 5 along C-C to sectional drawing;
Fig. 7 be Fig. 5 along D-D to sectional drawing;
Fig. 8 be Fig. 5 along E-E to sectional drawing;
Fig. 9 is the expanded view of the top particle size cylindrical section of track core pipe in Fig. 5.
In figure, sequence number illustrates: 1 top connection, 2 outer tubes, 3 track core pipes, 4 slideway post box cuplings, 5 lip rings, 6 times box cuplings, 7 annular plugs, 8 stay pipes, 9 lower contacts, 10 straight mouths, 11 axially extending bores, 12 radial direction through hole, 13 top particle size cylindrical sections, 14 thin footpath, bottom cylindrical sections, 15 convex slide blocks, 16 long straight troughs, 17 short straight troughs, 18 inclined-plane I, 19 bottom straight troughs, 20 inclined-planes II.
Detailed description of the invention
As shown in the figure, this track slideway type compression relief cock, the track core pipe 3 comprising outer tube 2 and be located in outer tube 2, the quantity of described outer tube 2 is two, slideway post box cupling 4 is utilized to be connected and fixed between two outer tubes 2, outer tube 2 threaded upper ends on top is connected with top connection 1, outer tube 2 lower end of bottom has been threaded lower box cupling 6, described track core pipe 3 is made up of top particle size cylindrical section 13 and bottom thin footpath cylindrical section 14, axially extending bore 11 is provided with in the middle of it, thin footpath, described bottom cylindrical section 14 is provided with the multiple radial direction through hole 12 communicated with axially extending bore 11, cylindrical section 14 lower end, thin footpath, described bottom reaches between outside lower the box cupling 6 and inner groove of lower box cupling 6 and bottom thin footpath cylindrical section 14 and arranges lip ring 5, and it is fixing to install annular plug 7 outside lip ring 5, the lower end of thin footpath, described bottom cylindrical section 14 has been threaded lower contact 9, two convex slide blocks 15 are along the circumferential direction arranged with in the middle part of described slideway post box cupling 4 inwall, the corresponding convex slide block 15 of top particle size cylindrical section 13 of described track core pipe 3 is provided with track groove, described track groove by be located at respectively particle size cylindrical section 13 two ends, top and be communicated with upper, lower channel forms, upper groove is made up of along the circumferential direction equally distributed two groups of grooves, often organize groove there is a long straight trough 16 and a short straight trough 17 and between adjacent long straight trough 16 with short straight trough 17, utilize inclined-plane I 18 to be in the same way connected transition respectively, described short straight trough 17 is positioned on the symmetrical plane of two long straight troughs 16, lower channel is made up of along the circumferential direction equally distributed four bottom straight troughs 19 and utilizes inclined-plane II 20 in the same way to connect transition between adjacent bottom straight trough 19 respectively, described bottom straight trough 19 is positioned on the symmetrical plane of long straight trough 16 and short straight trough 17, described inclined-plane I 18 and position, inclined-plane II 20 are staggered and incline direction is contrary.
The lower end of described long and short straight trough 16,17 communicates with bottom straight trough 19 respectively by inclined-plane I 18 and inclined-plane II 20, described long straight trough 16 upper end extends to the upper end of the top particle size cylindrical section 13 of track core pipe, and described short straight trough 17 upper end cut-off is to the middle part of the top particle size cylindrical section 13 of track core pipe.The degree of depth of described track groove is identical.Described slideway post box cupling 4 two ends respectively in be provided with straight mouth 10, described straight mouth 10 end is provided with internal thread, and the end of described outer tube 2 corresponding slideway post box cupling 4 is provided with external screw thread, to realize being threaded.Be provided with two ring-shaped grooves above the external screw thread of described outer tube 2, in described ring-shaped groove, be respectively equipped with O-ring seal.The upper end of the outer tube 2 on top is provided with internal thread, described top connection 1 is provided with external screw thread corresponding thereto, the externally threaded top of top connection 1 is provided with annular shoulder, the end contact of the outer tube on described annular shoulder and top and be provided with ring-shaped groove on the contact surface, be provided with O-ring seal in described ring-shaped groove, the top of described top connection 1 is provided with the internal thread for being connected with the oil pipe of outside oil well.The lower end of the outer tube 2 of bottom is provided with internal thread, described lower box cupling 6 is provided with the external screw thread corresponding with it, the externally threaded below of lower box cupling 6 is provided with annular shoulder, the end contact of the outer tube 2 of described annular shoulder and bottom and be provided with ring-shaped groove on the contact surface, is provided with O-ring seal in described ring-shaped groove.The bottom of described lower contact 9 is provided with the external screw thread for being connected with external equipment.As shown in Figure 1, the position between the corresponding annular plug 7 of thin footpath, bottom cylindrical section 14 of described track core pipe 3 and lower contact 9 is set with stay pipe 8, and it is detachable according to actual conditions, and whether the use of stay pipe 8, and duty is different.
Do not use stay pipe 8 situation:
The upper surface contact of the top particle size cylindrical section 13 of track core pipe 3 is to the terminal during lower surface of top connection 1 being up stroke, and the lower annular end face contact of the top particle size cylindrical section 13 of track core pipe 3 is the terminal of down stroke to the upper surface of lower box cupling 6.
When upwards lifting outside moving structure (outer tube 2 and slideway post box cupling 4), time initial, the convex slide block 15 of slideway post box cupling 4 is in the bottom straight trough 19 of track core pipe 3, slideway post box cupling 4 moves up, convex slide block 15 moves up through the bottom straight trough 19 of track core pipe, again through the inclined-plane track of track core pipe 3, follow inclined-plane and rotate 45 ° and automatically enter in adjacent long straight trough 16.When putting off outside moving structure (outer tube 2 and slideway post box cupling 4) downwards, slideway post box cupling 4 moves down, convex slide block 15, through the long straight trough 16 of track core pipe, then through the inclined-plane track of track core pipe 3, is followed inclined-plane and is rotated 45 ° and automatically enter in adjacent bottom straight trough 19.The movement locus that track core pipe 3 moves up and down each time is change, the convex slide block 15 of each stroke slideway post box cupling and the track rotary shifted 45 ° mutually of track core pipe 3.Whenever the convex slide block 15 of slideway post box cupling is at long straight trough 16 and when upwards carrying to lower initial point, thin footpath, the bottom cylindrical section 14 of track core pipe stretches out annular plug 7, make the radial direction through hole 12(tri-on it) expose, now the inside of track core pipe 3 is connected with the external world, when there is highly pressurised liquid inside, to be released inner liquid and pressure by radial direction through hole 12.
Use working condition during stay pipe 8:
The upper surface contact of stay pipe 8 is to the terminal during lower surface of annular plug 7 being up stroke, and the lower annular end face contact of the top particle size cylindrical section 13 of track core pipe 3 is the terminal of down stroke to the upper surface of lower box cupling 6.
Due to the restriction of stay pipe 8, the convex slide block 15 of slideway post box cupling 4 is all the time in the long straight trough 16 of track core pipe 3, no longer through bottom conversion track, whenever upwards carrying outside moving structure, the radial direction through hole 12 on thin footpath, the bottom cylindrical section 14 of track core pipe exposes, when there is a highly pressurised liquid inside, to be released inner liquid and pressure by through hole, when transferring outside moving structure, the radial direction through hole 12 of thin footpath, bottom cylindrical section 14 just enters in outside moving structure, and pressure release passage is closed.
Claims (9)
1. a track slideway type compression relief cock, comprise outer tube and be located at the track core pipe in outer tube, it is characterized in that: the quantity of described outer tube is two, slideway post box cupling is utilized to be connected and fixed between two outer tubes, the outer sleeve upper on top has been threaded top connection, the outer tube lower end of bottom has been threaded lower box cupling, described track core pipe is made up of top particle size cylindrical section and bottom thin footpath cylindrical section, axially extending bore is provided with in the middle of it, thin footpath, described bottom cylindrical section is provided with the multiple radial direction through hole communicated with axially extending bore, cylindrical section lower end, thin footpath, described bottom reaches between the cylindrical section of outside lower box cupling and the inner groove of lower box cupling and bottom thin footpath and arranges lip ring, and annular plug is installed outside lip ring fixes, the lower end of thin footpath, described bottom cylindrical section has been threaded lower contact, two convex slide blocks are along the circumferential direction arranged with in the middle part of described slideway post box cupling inwall, the corresponding convex slide block of top particle size cylindrical section of described track core pipe is provided with track groove, described track groove by be located at respectively particle size cylindrical section two ends, top and be communicated with upper, lower channel forms, upper groove is made up of along the circumferential direction equally distributed two groups of grooves, often organize groove and there is a long straight trough and a short straight trough and adjacent long straight trough is connected transition with the inclined-plane I utilized respectively between short straight trough in the same way, described short straight trough is positioned on the symmetrical plane of two long straight troughs, lower channel is formed by along the circumferential direction equally distributed four bottom straight troughs and is utilized inclined-plane II in the same way to connect transition between adjacent bottom straight trough respectively, described bottom straight trough is positioned on the symmetrical plane of long straight trough and short straight trough, described inclined-plane I and position, inclined-plane II are staggered and incline direction is contrary.
2. track slideway type compression relief cock according to claim 1; it is characterized in that: the lower end of described long and short straight trough communicates with bottom straight trough respectively by inclined-plane I and inclined-plane II; described long straight trough upper end extends to the upper end of the top particle size cylindrical section of track core pipe, and described short straight trough upper end cut-off is to the middle part of the top particle size cylindrical section of track core pipe.
3. track slideway type compression relief cock according to claim 1, is characterized in that: the position between the corresponding annular plug of thin footpath, bottom cylindrical section of described track core pipe and lower contact is set with stay pipe.
4. track slideway type compression relief cock according to claim 1, is characterized in that: described slideway post box cupling two ends respectively in be provided with straight mouth, described straight mouth end is provided with internal thread, and the end of described outer tube corresponding slideway post box cupling is provided with external screw thread.
5. track slideway type compression relief cock according to claim 1, is characterized in that: be provided with two ring-shaped grooves above the external screw thread of described outer tube, be respectively equipped with O-ring seal in described ring-shaped groove.
6. track slideway type compression relief cock according to claim 1; it is characterized in that: the upper end of the outer tube on top is provided with internal thread; described top connection is provided with external screw thread corresponding thereto; the externally threaded top of top connection is provided with annular shoulder; the end contact of the outer tube on described annular shoulder and top and be provided with ring-shaped groove on the contact surface; be provided with O-ring seal in described ring-shaped groove, the top of described top connection is provided with the internal thread for being connected with the oil pipe of outside oil well.
7. track slideway type compression relief cock according to claim 1; it is characterized in that: the lower end of the outer tube of bottom is provided with internal thread; described lower box cupling is provided with the external screw thread corresponding with it; the externally threaded below of lower box cupling is provided with annular shoulder; the end contact of the outer tube of described annular shoulder and bottom and be provided with ring-shaped groove on the contact surface, is provided with O-ring seal in described ring-shaped groove.
8. track slideway type compression relief cock according to claim 1, is characterized in that: the bottom of described lower contact is provided with the external screw thread for being connected with external equipment.
9. track slideway type compression relief cock according to claim 1, is characterized in that: the degree of depth of described track groove is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676332.7U CN204200172U (en) | 2014-11-13 | 2014-11-13 | Track slideway type compression relief cock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676332.7U CN204200172U (en) | 2014-11-13 | 2014-11-13 | Track slideway type compression relief cock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200172U true CN204200172U (en) | 2015-03-11 |
Family
ID=52658140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420676332.7U Withdrawn - After Issue CN204200172U (en) | 2014-11-13 | 2014-11-13 | Track slideway type compression relief cock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358543A (en) * | 2014-11-13 | 2015-02-18 | 张晓义 | Trajectory slideway-type pressure relief switch |
-
2014
- 2014-11-13 CN CN201420676332.7U patent/CN204200172U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358543A (en) * | 2014-11-13 | 2015-02-18 | 张晓义 | Trajectory slideway-type pressure relief switch |
| CN104358543B (en) * | 2014-11-13 | 2016-11-09 | 张晓义 | Track slide way type compression relief cock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150311 Effective date of abandoning: 20161012 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |