CN104499955B - A kind of pushing block is combined lock type fast-connecting type drilling riser tube connector - Google Patents
A kind of pushing block is combined lock type fast-connecting type drilling riser tube connector Download PDFInfo
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- CN104499955B CN104499955B CN201410686812.6A CN201410686812A CN104499955B CN 104499955 B CN104499955 B CN 104499955B CN 201410686812 A CN201410686812 A CN 201410686812A CN 104499955 B CN104499955 B CN 104499955B
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- lock dog
- ring
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- curved surface
- groove
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
Abstract
The invention discloses a kind of pushing block and be combined lock type fast-connecting type drilling riser tube connector, cylindrical including male joint is provided with annular groove, this annular groove is circumferentially arranged multiple lock dog, each lock dog inwall is provided with the ring tooth of occlusion corresponding with annular groove, all lock dog outer walls and driving ring drive connection, drive ring circumference to be radially arranged drive hole；Drive be respectively arranged with in the middle part of ring cylindrical six uniform profiles be bias centrifugal curve, transverse section is the curved surface groove of circular arc, drive and be provided with six uniform profiles on ring inner periphery for biasing centrifugal shaped form curved surface, one end of these six curved surface grooves and six curved surfaces is near axle center, and the other end is away from axle center；Being circumferentially provided with six uniform fan grooves in convex edge, female joint flange upper surface, be provided with a lock dog in each fan groove, each lock dog outer wall is machined with the centrifugal curved surface of biasing.Apparatus of the present invention, lock dog loaded area is big, and bearing capacity is strong, and the compound locking of lock dog is safely and fast.
Description
Technical field
The invention belongs to sea oil drilling and production equipment technology field, relate to a kind of pushing block and be combined lock type and connect soon
Formula drilling riser tube connector.
Background technology
Offshore Drilling Riser (hereinafter referred to as marine riser) adapter is as the weight in the middle of marine riser equipment
Want attachment means, have between marine riser pipe string connect, auxiliary line supports fixing, seabed drilling and extracting equipment
The multiple uses such as installation, mud circulation and sea water isolation.
Existing riser connector version generally has screw-type, flange bolt formula, lock block type of pawling
Deng, screw buckle adapter is adapted to shallow water, and flange bolt formula is adapted to deep water, has that connection is reliable, holds
The features such as load power is big, but deficiency to be installing/dismounting time-consuming laborious, inefficiency；Pawl lock block type joint
Compared with flanged fitting, connection speed is relatively fast, but still needs to drive six bolts when connecting, behaviour
Make or cumbersome.
Summary of the invention
It is an object of the invention to provide a kind of pushing block and be combined lock type fast-connecting type drilling riser tube connector, solve
Structural limitations present in prior art of having determined, causes operation to be wasted time and energy, ineffective problem.
The technical solution adopted in the present invention is, a kind of pushing block is combined lock type fast-connecting type drilling water-separation pipe even
Connecing device, including male joint and female joint, the cylindrical of male joint is provided with annular groove, and this annular groove is circumferentially arranged
Have multiple lock dog, each lock dog inwall to be provided with the ring tooth of occlusion corresponding with annular groove, all lock dog outer walls with
Drive ring drive connection, drive ring circumference to be radially arranged the drive hole of multiple driving rod；
Drive and be respectively arranged with six uniform profiles in the middle part of ring cylindrical for biasing centrifugal curve, cross-section
Face is the curved surface groove of circular arc, drives and is provided with six uniform profiles on ring inner periphery for biasing centrifugal song
Line style curved surface, one end of these six curved surface grooves and six curved surfaces is near axle center, and the other end is away from axle center；?
Convex edge, female joint flange upper surface is circumferentially provided with six uniform fan grooves, is provided with in each fan groove
One lock dog, each lock dog outer wall is machined with the centrifugal curved surface of biasing, with the radial direction driving ring inwall to arrange
Bias centrifugal curved surface to match.
The pushing block of the present invention is combined lock type fast-connecting type drilling riser tube connector, and its feature also resides in:
Female joint flange upper surface diametrically both sides are symmetrically arranged with two keyways, the most vertical in each keyway
Have a screw and a dowel hole；Ring cylindrical bottom is driven to be provided with four be arranged symmetrically with two-by-two
T-slot, each two T-slot is spaced 30 °；Location lock dog it is inlaid with, location in the keyway of female joint
Lock dog is L-type lock dog, and vertical section termination is that T-shaped shape matches with driving the T-shaped locked groove in ring,
Having elongated hole and circular hole in the middle of horizontal segment, tightening lock pin is through elongated hole and the female joint flange positioning lock dog
Screw is connected, and compresses to realize the anti-back function of location lock dog by location lock dog by screwing tightening lock pin,
Anti-back lock pin is connected to position on the circular hole of lock dog.
The locking thread form formula of annular groove use 45 ° of zigzag or use 3 °, 30 ° of zigzag, rectangle,
The forms such as circle, the locking tooth number of annular groove uses the form such as four teeth or two teeth, three teeth, five teeth.
The range difference driving the inside and outside end of ring curved groove and drive ring axis is nibbled with male joint annular groove more than lock dog
Radial distance during conjunction.
Six fan grooves that circumference is uniform, are arranged as required to be two, three, four, eight；Lock
It is two, three, four, eight that block is correspondingly arranged, and corresponding driving ring excircle is also configured as
Two, three, four, eight uniform profiles are for biasing centrifugal shaped form arc groove, on inner periphery
Be also configured as two, three, four, eight uniform profiles are for biasing centrifugal shaped form curved surface.
Lock dog is connected with driving ring by ball-type screw.
The invention has the beneficial effects as follows, for the exploitation design of ocean deepwater technical field, be to China national
A kind of Curve guide impeller of patent of invention ZL201110038537.3, it connects locking mode and still uses rotation
The mode driving ring to drive six lock dogs to insert male joint annular groove realizes, and whole installation, unloading process are only
Need less rotating torque that ring will be driven to rotate 30 °, then promote, fix pushing block-location lock dog
Connect locking, dismount efficient and convenient.The application is based primarily upon lock block driving mechanism, retaining mechanism and carrying
The re-optimization of bindiny mechanism three aspect, it is big that the adapter after improvement has lock dog loaded area, carries energy
Power is strong, and lock dog is combined multiple advantages such as locking safely and fast, high-pressure slurry seal compatibility is good, the fullest
Drillng operation requirement under the foot conditional operation environment such as ocean deepwater, ultra-deep-water.
Accompanying drawing explanation
Fig. 1 is riser connector overall structure sketch of the present invention；
Fig. 2 is riser connector locking state sketch of the present invention；
Fig. 3 is riser connector released state sketch of the present invention；
Fig. 4 is the Section A-A schematic diagram in Fig. 2；
Fig. 5 is the B direction schematic diagram in Fig. 3；
Fig. 6 is the I position partial enlarged drawing in Fig. 1.
In figure, 1. male joint, 2. auxiliary line male joint, 3. adjusting nut, 4. drive ring, 5. ball-type spiral shell
Nail, 6. lock dog, 7. tightening spiral pin, 8. primary seal, 9. auxiliary seal, 10. auxiliary line female joint, 11.
Female joint, 12. location lock dogs, 13. tightening lock pins, 14. anti-back lock pins, 15. driving rods.
Detailed description of the invention
The present invention is described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
With reference to Fig. 1, Fig. 6, the structure of the present invention is, including male joint 1 and female joint 11, male joint
1 and female joint 11 termination contact surface use step contact, contact surface is provided with multiple tracks primary seal 8, public
Cylindrical on joint 1 step is provided with annular groove, and this annular groove is circumferentially arranged multiple lock dog 6, each
Lock dog 6 inwall is provided with the ring tooth of occlusion corresponding with annular groove, and all lock dog 6 outer walls drive with driving ring 4
Connect, drive ring 4 circumference to be radially arranged the drive hole of multiple driving rod 15；
Auxiliary line male joint 2, auxiliary line male joint 2 circle it is installed with vertically outside male joint 1 flange
Being set with adjusting nut 3 on week, adjusting nut 3 is real with auxiliary line male joint 2 by tightening spiral pin 7
Existing circumference is spacing, is installed with auxiliary line female joint 10, auxiliary line vertically outside female joint 11 flange
Male joint 2 is provided with auxiliary seal 9 with the interface of auxiliary line female joint 10；
With reference to Fig. 2, Fig. 3, it is inclined for driving and being respectively arranged with six uniform profiles in the middle part of ring 4 cylindrical
Put centrifugal curve, transverse section is the curved surface groove of circular arc, drive be provided with on ring 4 inner periphery six uniform
Profile for bias centrifugal shaped form curved surface, one end of these six curved surface grooves and six curved surfaces is near axle
The heart, the other end is away from axle center；Be circumferentially provided with in convex edge, female joint 11 flange upper surface six uniform
Fan groove, is provided with a lock dog 6 in each fan groove, it is centrifugal that each lock dog 6 outer wall is machined with biasing
Formula curved surface, matches with the centrifugal curved surface of radial offset driving ring 4 inwall to arrange, each lock dog 6 outer wall
It is installed with a ball-type screw 5；
With reference to Fig. 4, Fig. 5, it is symmetrically arranged with two keys on female joint 11 flange upper surface diametrically both sides
Groove, the most vertically has a screw and a dowel hole in each keyway；Ring 4 cylindrical bottom is driven to set
Being equipped with four T-slot being arranged symmetrically with two-by-two, each two T-slot is spaced 30 °；In female joint 11
Being inlaid with location lock dog 12 in keyway, can move radially, location lock dog 12 is that L-type lock dog is (see figure
4, shown in Fig. 5), vertical section termination is that T-shaped shape matches with driving the T-shaped locked groove in ring 4, water
Having elongated hole and circular hole in the middle of flat section, tightening lock pin 13 is through elongated hole and the female joint 11 positioning lock dog 12
The screw of flange is connected, and compresses location lock dog 12 to realize location lock dog by screwing tightening lock pin 13
The anti-back function of 12, anti-back lock pin 14 is connected to position on the circular hole of lock dog 12, locks by screwing anti-back
Pin 14 so that it is be embedded in the dowel hole in female joint 11 keyway, it is achieved male joint 1, female joint 1
Secondary be combined anti-back unlocking function.
In Fig. 2, riser connector is locking state, utilizes driving rod 15 will drive ring 4 dextrorotation
Turn 30 °, i.e. from Fig. 2 state to Fig. 3 state, drive ring 4 to utilize six curved surface grooves will be with lock dog 6
Six the ball-type screws 5 being connected, move on to the other end away from axle center from paraxial heart one end of curved surface groove simultaneously,
Now lock dog 6 is also natural moves along with ball-type screw 5 realizes radial direction, this makes it possible to guarantee to rotate drive ring
When 4, simultaneously drive six lock dogs 6 and move radially, displacement for drive on ring 4 profile for biasing from
Core type curve, transverse section are the semidiameter (radial difference) of the inside and outside end of curved surface groove of circular arc, see Fig. 3
Middle riser connector is released state.
After male joint 1, female joint 11 are by driving ring 4 to drive lock dog 6 to connect, running fix lock dog
The 12 T-shaped locked grooves embedding driving ring 4 prevent from driving ring 4 to rotate, in order to avoid it drives lock dog 6 after rotating
Rear shifting, in turn results in male joint 1, the accident of female joint 11 is freed.
When male and female joint connects, rely on outside six lock dogs 6 in female joint 11 and male joint 1
The mode that horizontal zigzag annular groove connects realizes, wherein lock dog 6 inwall, the connecting portion of male joint 1
Being divided into horizontal zigzag annular groove to coordinate, annular groove is the zigzag structure of special angle.The locking tooth of annular groove
Form uses 45 ° of zigzag or the form such as employing 3 °, 30 ° of zigzag, rectangle, circles, annular groove
Locking tooth number use the form such as four teeth or two teeth, three teeth, five teeth.
Drive the ring 4 inside and outside end of curved groove and drive the range difference of ring 4 axis more than lock dog 6 and male joint
Radial distance during 1 annular groove engagement.
Uniform six fan grooves of circumference, it is also possible to be arranged as required to be two, three, four, eight
Individual number such as grade.Lock dog correspondence can also be designed to two, three, four, eight, corresponding driving
Can also be designed on ring excircle two, three, four, eight uniform profiles centrifugal for biasing
Shaped form arc groove, inner periphery can also be designed to two, three, four, eight uniform profiles
For biasing centrifugal shaped form curved surface.Lock dog 6 is connected with driving ring 4 by ball-type screw 5, or passes through
Other form curved surfaces corresponding are connected with driving ring 4.
The work process of the rotary-type riser connector of the present invention is,
Connecting locking process is first to fix female joint 11 on platform, then transfer male joint 1, treat public affairs
Joint 1 inserts female joint 11, and after arriving defined position, each auxiliary line male joint 2 is also inserted simultaneously into
In corresponding auxiliary line female joint 10.Driving rod 15 is inserted in the drive hole driven on ring 4 circumference,
Utilizing driving rod 15 to drive drives ring 4 to rotate 30 ° counterclockwise, drives the lock dog 6 in female joint 11
Prolonging the annular groove that annular groove radially moves to axle center and is finally inserted into male joint 1, the most centripetal promotion positions lock dog
12, embed and position locked groove accordingly on driving ring 4, tighten tightening lock pin 13 and anti-back lock pin 14, i.e.
Reach male joint 1, female joint 11 connects the purpose (such as Fig. 2) locked.
Unblock unloading process is, first unclamps anti-back lock pin 14, and the dowel hole from female joint 11
In exit anti-back lock pin 14 completely but not from location lock dog 12 pull down, then unscrew tightening lock pin 13,
Radially exit location lock dog 12, utilize driving rod 15 to drive and drive ring 4 to turn clockwise 30 °, drive
Lock dog 6 disengages to the initial position away from axis direction, lock dog 6 with male joint 1, screws tightening simultaneously
Lock pin 13, drives ring 4 and lock dog 6 with locking.Now lifting male joint 1, just can be by male joint 1 He
Female joint 11 disengages (such as Fig. 3).
Assembly of the invention, it is possible to adapt to ocean deepwater, ultra deepwater drilling job requirements, have installation,
Dismantle quick and convenient, attachment security is reliable, the marine riser adapter of the feature such as time saving and energy saving, be used for
Connect marine riser string, the passage in a connection seabed is provided for marine drilling operation, has offshore drill simultaneously concurrently
Insulating sea water during well, internal mud circulation, each control pipeline fix, BOP group rising on ocean platform
Hang the multiple use such as installation, drilling tool guiding.
It addition, it is emphasized that
The drilling riser tube connector of the present invention compared with Chinese invention patent ZL201110038537.3,
The structure improved mainly includes two parts, i.e. by driving ring 4, ball-type screw 5, lock dog 6, female joint
The 11 lock dog drive parts constituted, and by driving ring 4, female joint 11, location lock dog 12, tightening
The connection lock portion that lock pin 13, anti-back lock pin 14 are constituted, other parts and China national patent of invention
ZL201110038537.3 is identical.
As shown in Figure 1, Figure 2, Figure 3 shows, described lock dog drive part is, six lock dogs 6 are arranged on
In six uniform fan grooves of female joint 11 upper surface, lock dog 6 inwall is still horizontal zigzag annular groove,
Match with the horizontal zigzag annular groove on male joint 1 cylindrical, lock dog 6 outer wall be curved surface and with drive ring
The curved surface of 4 inwalls coordinates.Driving and being evenly equipped with six profiles on the middle part excircle of ring 4 is that biasing is centrifugal
Curve, transverse section are the curved surface groove of circular arc and six circular drives holes, and driving, ring 4 bottom is the most symmetrical
Devising four T-shaped locating slots, each two is symmetrical according to circumference spacing 30 °.Lock dog 6 outer wall
By ball-type screw 5 with drive ring 4 inner surface contour be bias centrifugal curve, transverse section is the song of circular arc
Face groove is connected, and turn clockwise 30 ° of ring of driving, and six ball-type screws 5 are the most simultaneously from driving ring 4
Six profiles be bias centrifugal curve, transverse section is that the curved surface groove outer end of circular arc is slid onto in curved surface groove
End, at six ball-type screws 5 along the profile that six drive ring 4 for the centrifugal curve of biasing, transverse section be
While the curved surface groove sliding of circular arc, six ball-type screws 5 also with six lock dogs 6 along female joint 11
In six fan groove radially inward slidings, and be slid onto six lock dogs 6 and male joint 1 annular groove is nibbled completely
The position closed, thus realize the purpose that male joint 1, female joint 11 are connected by lock dog 6.This part is removed
T-slot in female joint 11 in patent ZL201110038537.3, will drive six on ring 4 inwall
Section curved surface groove is changed to drive on ring 4 outer wall, and the T-shaped section of curved surface groove changes circular arc type section into.After improvement with
Comparing before improvement, drive ring 4 frictional force less, action is more smooth.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, described connection lock portion is, male joint 1, mother
The connection locking of joint 11 realizes with driving lock dog 6 by fixing, free driving ring 4, drives ring 4
Fix, free by embed or exit location lock dog 12 realize.Drive 30 ° of symmetrical interval on ring 4
Being designed with four T-shaped locked grooves, female joint flange is designed with two symmetrical keyways, bottom land separately designs
Having screw and dowel hole, location lock dog 12 is designed with elongated hole and circular hole, tightening lock pin 13 is by fixed
Elongated hole on the lock dog 12 of position is connected with screw on female joint 11 flange, meanwhile, with location lock dog 12 phase
Anti-back lock pin 14 even may be inserted into or exit corresponding dowel hole on flange.During locking, positioning lock
The block 12 keyway in female joint 11 moves, and imbeds the T-shaped locked groove driven on ring 4, then tightens tight
Lock pin 13, anti-back lock pin 14 can realize male joint 1, female joint 11 connects locking.Tightening lock pin
13 compress location lock dog 12, can prevent positioning lock dog 12 and exit the T-shaped locked groove driven on ring 4, thus
Causing lock dog 6 rollback, male joint 1, female joint 11 unlock, and tighten anti-back lock pin 14 so that it is insert
Dowel hole on female joint 11 flange, it is therefore an objective in the case of tightening lock pin 13 loosens, position lock dog
12 still by anti-back lock pin 14 pin at locked position, will not rollback so that lock dog 6 rollback, public
Joint 1, female joint 11 unlock, and are a kind of second protection mechanisms.During unblock, unclamp tightening lock pin 13,
Anti-back lock pin 14, the anti-back lock pin 14 dowel hole from female joint 11 flange exits, rollback positioning lock
Block 12 makes it exit completely from driving ring 4 locked groove, then driving ring 4 is rotated 30 °, more successively
Promote location lock dog 12 to insert another locked groove driving ring 4, tighten tightening lock pin 13, anti-back lock pin 14,
Can realize lock dog 6 rollback, male joint 1, female joint 11 unlock, and will drive ring 4 and lock dog 6
It is fixed on the purpose of unlocked position.This part eliminate male joint 1 in patent ZL201110038537.3,
Bolt, by 30 ° of holes, location being distributed and bolt, is locked by two circumferential spacing in female joint 11
Location changes positioning lock dog locking positioning, Comparatively speaking its more reliable performance into, operation of being simultaneously more convenient for.
While main body coupling part is even good, each auxiliary line coupling part still with patent
ZL201110038537.3 is identical, while male joint 1, female joint 11 connect, and each auxiliary tube
Wire terminal male and female joint grafting the most is complete, and the sealing between each male and female joint is by each auxiliary line
Completely cutting off with pipe interior or exterior space, now marine riser single the most all installations connection terminates.
The structure of the present invention, compared with patent ZL201110038537.3, has the advantage that
1) retaining mechanism of the present invention has uniqueness, efficiently locking mode, by moving radially location
Lock dog 12 inserts the T-shaped locked groove driving ring 4 bottom, then tightens tightening lock pin 13, anti-back lock pin 14,
Location lock dog 12 is carried out compound positioning and locking, thus prevents from positioning lock dog 12 rollback, cause driving ring
4 rotate in a circumferential direction, and drive six lock dogs 6 to move radially, and in turn result in male joint 1, female joint 11 solves
The consequence of lock.The mode that fixing employing tightening lock pin 13 pretightning force of location lock dog 12 compresses realizes, fixed
The lock dog 12 middle cooperation position design with tightening lock pin 13 in position is elongated hole, it can be ensured that location lock dog
12 move left and right, and the design of anti-back lock pin 14 can effective anti-fastening in the case of tightening lock pin 13 shakes loose
Position lock dog 12 rollback, is a kind of locking design of secondary.
2) present invention has faster, more convenient, safer, more labour-saving connection effect, drives ring 4
And six lock dogs 6 be respectively designed with six uniform profiles for biasing centrifugal curve, transverse section is circular arc
Curved surface groove and curved surface, one end of round surface groove and curved surface is near axle center, and the other end is away from axle center.Up time
Pin rotates and drives 30 ° of ring, drives six curved surface grooves on ring 4 excircle just can be connected six with lock dog 6
Ball-type screw 5, simultaneously move on to the other end from one end of curved surface groove, thus may insure that and drive in rotation
During rotating ring 4, simultaneously drive six lock dogs 6 and move radially.Drive design on ring 4 and six lock dogs 6
Curved form is identical, can cooperate, and so can ensure that when male and female joint connects, by driving 4 rings bent
The radial pressure of lock dog 6 is born in face, reduces the radial stress of lock dog 6 outer surface, improves the safety connected
Property.Simultaneously driving profile on ring 4 excircle is to bias the curved surface groove that centrifugal curve, transverse section are circular arc
And the design of cooperating therewith ball-type screw 5 so that during connection, rotate and drive the frictional force of ring less,
Action is more smooth.
3) in the type of attachment of the present invention, lock dog 6 inwall is level with the coupling part of male joint 1
Formula zigzag annular groove designs, and the angle design of annular groove is unique, and such being designed to ensures to connect at joint
During stress, lock dog does not has lateral pressure, improves safety during joint work.
The overall advantage of the present invention is embodied in simple in construction, connects rapidly, reliable, locking property is good, tension,
Bending resistance, good seal performance, the aspect such as easy to connect.Various marine site, sea situation can not only be applied to well
In the middle of, especially adapt to the drillng operation under the mal-conditions such as ocean deepwater, but also there is good economy
Performance and market popularization value.
Claims (5)
1. a pushing block is combined lock type fast-connecting type drilling riser tube connector, it is characterised in that: include public affairs
Joint (1) and female joint (11), contact surface is provided with multiple tracks primary seal (8), male joint (1)
Cylindrical is provided with annular groove, and this annular groove is circumferentially arranged multiple lock dog (6), each lock dog (6) inwall
It is provided with the ring tooth of occlusion corresponding with annular groove, all lock dogs (6) outer wall and driving ring (4) drive connection,
Ring (4) circumference is driven to be radially arranged the drive hole of multiple driving rod (15)；
Drive be respectively arranged with in the middle part of ring (4) cylindrical six uniform profiles for bias centrifugal curve,
Transverse section is the curved surface groove of circular arc, and it is inclined for driving and being provided with six uniform profiles on ring (4) inner periphery
Putting centrifugal shaped form curved surface, one end of these six curved surface grooves and six curved surfaces is near axle center, and the other end is remote
The off-axis heart；It is circumferentially provided with six uniform fan grooves, often in convex edge, female joint (11) flange upper surface
Being provided with a lock dog (6) in individual fan groove, each lock dog (6) outer wall is machined with the centrifugal song of biasing
Face, matches with the centrifugal curved surface of radial offset driving ring (4) inwall to arrange；
Described female joint (11) flange upper surface diametrically both sides are symmetrically arranged with two keyways, each
A screw and a dowel hole is the most vertically had in keyway；Ring (4) cylindrical bottom is driven to be provided with
Four T-slot being arranged symmetrically with two-by-two, each two T-slot is spaced 30 °；In female joint (11)
Being inlaid with location lock dog (12) in keyway, location lock dog (12) is L-type lock dog, and vertical section termination is
T-shaped shape matches with driving the T-shaped locked groove in ring (4), has elongated hole and circular hole in the middle of horizontal segment,
Tightening lock pin (13) is connected through the elongated hole of location lock dog (12) with the screw of female joint (11) flange,
Compress to realize the anti-of location lock dog (12) by location lock dog (12) by screwing tightening lock pin (13)
Moving back function, anti-back lock pin (14) is connected to position on the circular hole of lock dog (12).
Pushing block the most according to claim 1 is combined lock type fast-connecting type drilling riser tube connector, its
Be characterised by: the locking thread form formula of described annular groove use 45 ° of zigzag, 30 ° of zigzag, rectangle or
Circular；The locking tooth number of annular groove uses four teeth, two teeth, three teeth or five teeth.
Pushing block the most according to claim 1 is combined lock type fast-connecting type drilling riser tube connector, its
It is characterised by: the described inside and outside end of driving ring (4) curved groove and the range difference driving ring (4) axis
Radial distance when engaging with male joint (1) annular groove more than lock dog (6).
Pushing block the most according to claim 1 is combined lock type fast-connecting type drilling riser tube connector, its
Be characterised by: six described uniform fan grooves, to be arranged as required to be two, three, four,
Eight；It is two, three, four, eight that lock dog is correspondingly arranged, on corresponding driving ring excircle
Be also configured as two, three, four, eight uniform profiles for biasing centrifugal shaped form arc groove,
Be also configured as on inner periphery two, three, four, eight uniform profiles are for biasing centrifugal shaped form
Curved surface.
Pushing block the most according to claim 1 is combined lock type fast-connecting type drilling riser tube connector, its
It is characterised by: described lock dog (6) is connected with driving ring (4) by ball-type screw (5), or logical
Cross other form curved surfaces corresponding and be connected with driving ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686812.6A CN104499955B (en) | 2014-11-24 | 2014-11-24 | A kind of pushing block is combined lock type fast-connecting type drilling riser tube connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686812.6A CN104499955B (en) | 2014-11-24 | 2014-11-24 | A kind of pushing block is combined lock type fast-connecting type drilling riser tube connector |
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| CN104499955A CN104499955A (en) | 2015-04-08 |
| CN104499955B true CN104499955B (en) | 2016-12-07 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106050145B (en) * | 2016-08-05 | 2018-08-17 | 王岩卿 | A kind of underwater drilling machine |
| CN110985753A (en) * | 2019-12-24 | 2020-04-10 | 宝鸡石油机械有限责任公司 | Mechanical type installation device suitable for ocean mining riser |
| CN111980618B (en) * | 2020-09-23 | 2022-06-10 | 中油国家油气钻井装备工程技术研究中心有限公司 | Well head connector with emergency mechanical unlocking function |
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| GB966842A (en) * | 1962-06-07 | 1964-08-19 | Shell Int Research | Pipe coupling |
| US4121861A (en) * | 1977-04-29 | 1978-10-24 | Lord Corporation | Flexible sealing joint |
| CN102162339A (en) * | 2010-02-24 | 2011-08-24 | 建湖县永维阀门钻件有限公司 | Quick connection mechanism for high-strength dual-seal deep sea anti-ice marine riser |
| CN201778669U (en) * | 2010-07-19 | 2011-03-30 | 宝鸡石油机械有限责任公司 | Locking piece connecting type marine riser device |
| CN102146772A (en) * | 2011-02-15 | 2011-08-10 | 宝鸡石油机械有限责任公司 | Rotary locking piece type drilling riser connector |
| CN202673170U (en) * | 2012-07-17 | 2013-01-16 | 中国海洋石油总公司 | Breechblock type riser joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104499955A (en) | 2015-04-08 |
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Effective date of registration: 20210115 Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee after: Baoji Oilfield Machinery Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: 721002 No. 2 Dongfeng Road, Shaanxi, Baoji Patentee before: Baoji Oilfield Machinery Co.,Ltd. |