CN115749624B - Quick connecting device of large-caliber metal sealing riser pipe for well drilling - Google Patents
Quick connecting device of large-caliber metal sealing riser pipe for well drilling Download PDFInfo
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- CN115749624B CN115749624B CN202211292193.3A CN202211292193A CN115749624B CN 115749624 B CN115749624 B CN 115749624B CN 202211292193 A CN202211292193 A CN 202211292193A CN 115749624 B CN115749624 B CN 115749624B
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- 238000005553 drilling Methods 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 title abstract description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 14
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 14
- 241001330002 Bambuseae Species 0.000 claims description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 14
- 239000011425 bamboo Substances 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000004429 Calibre Substances 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000013535 sea water Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention discloses a quick connecting device for a large-caliber metal sealing riser pipe for well drilling, which belongs to the field of well drilling equipment and comprises two semicircular upper ring cylinders, two semicircular lower ring cylinders, a locking rod, a semicircular driving ring plate, a buckling component and a limiting component, wherein the semicircular driving ring plate is only required to be rotated to realize the connection of the riser pipe, no other operation is required, the connection speed is greatly improved, the buckling component and the locking component are mutually matched, the riser pipe can be automatically locked after being fixed, the quick fixing of the riser pipe is realized, the position of the locking rod is moved to realize the closing of the semicircular upper ring cylinders and the semicircular lower ring cylinders, the connection of the two riser pipes is completed, the connection of the two riser pipes is not required to be realized by using threaded connection, the connection cannot be disassembled after long-time use is avoided, the connection is convenient to use repeatedly, and the service life is prolonged.
Description
Technical Field
The invention relates to the field of drilling equipment, in particular to a large-caliber metal sealing riser quick connecting device for drilling.
Background
The water-stop casing is a casing from the offshore drilling platform to the shallow layer of the seabed, and has the main functions of isolating seawater, forming a drilling fluid circulation channel and simultaneously serving as a holding force structure of an offshore wellhead. In the well drilling and completion construction process, the strength and the safety of the riser are critical to the offshore drilling operation safety, the existing riser connecting device also needs to be screwed down through threaded fit, and the threads are easy to corrode and adhere and cannot be unscrewed.
The invention discloses a connection device of marine drilling riser, which comprises an inner pipe, an upper joint, a lower joint, an upper sleeve, a lower sleeve and a connecting ring, wherein the upper joint and the lower joint of the inner pipe are protected in a closed mode through the upper sleeve, the connecting ring and the lower sleeve, seawater is directly isolated to avoid corrosion of the upper joint and the lower joint, the inner pipe is damaged, the hollow upper sleeve and the lower sleeve are lighter in shell and matched with spiral protrusions on the outer side surface, and the connection of the riser can be completed by the connection device, but the connection device still adopts threaded connection, can be bonded together and cannot be detached when used for a long time, and cannot realize quick installation of the riser.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a quick connecting device for a large-caliber metal sealing riser pipe for well drilling, which solves the problems that the large-caliber metal sealing riser pipe cannot be split and can not be quickly installed after being connected by screw threads after being used for a long time.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a heavy-calibre metal seal riser quick connecting device for well drilling, including two semicircle upper ring section of thick bamboo and two semicircle lower ring section of thick bamboo, all fixedly on two semicircle upper ring section of thick bamboo be provided with the dead lever, all rotate on two semicircle lower ring section of thick bamboo and install semicircle drive ring board, all be provided with on two semicircle drive ring boards and withhold the subassembly, withhold the subassembly and include the dead lever, dead lever and dead lever sliding fit, the dead lever moves down and makes the dead lever move down, make semicircle upper ring section of thick bamboo and semicircle lower ring section of thick bamboo withhold riser, all be provided with restriction subassembly and locking subassembly on two semicircle lower ring section of thick bamboo, restriction subassembly includes stopper and restriction straight rack, stopper bilateral symmetry is provided with a plurality of flexible ratchets, stopper and restriction straight rack constitute pawl mechanism, stopper and dead lever sliding fit, the stopper is used for restricting the vertical position of dead lever, the locking subassembly includes the locking frame, locking frame and locking lever sliding fit, the locking frame is used for restricting the transverse position of locking lever.
Further, the two semicircular upper ring cylinders are in sliding fit, the two semicircular upper ring cylinders cannot be pulled transversely when being assembled together in a sliding mode, the two semicircular lower ring cylinders are in sliding fit, and the two semicircular lower ring cylinders cannot be pulled transversely when being assembled together in a sliding mode.
Further, withhold the subassembly and include the drive semi-ring, the fixed setting of drive semi-ring is inboard at semicircle drive ring board, and the fixed depression bar that is provided with on the drive semi-ring presses the pole front end to be provided with presses the briquetting, and the semicircle is provided with semicircle ring board on the semicircle lower ring section of thick bamboo fixedly, is provided with Z arc hole on the semicircle ring board, presses the downthehole at Z arc of briquetting slidable mounting.
Further, a driven semi-ring is slidably mounted on the driving semi-ring, a rotary pressing rod is fixedly mounted on the driven semi-ring, and a locking rod is fixedly mounted on the rotary pressing rod, so that the driven semi-ring rotates to enable the locking rod to be connected with the fixing rod.
Further, the limiting assembly comprises a sliding bottom plate, a limiting ratchet wheel is rotatably installed on the sliding bottom plate, a limiting block, a limiting straight rack and a locking frame are slidably installed on the sliding bottom plate, a torsion spring is arranged between the limiting ratchet wheel and the sliding bottom plate, one end of the torsion spring is fixedly connected to the sliding bottom plate, and the other end of the torsion spring is fixedly arranged on the limiting ratchet wheel.
Further, an arc-shaped bar hole is formed in the limiting ratchet wheel, the lower end of the limiting straight rack is slidably mounted in the arc-shaped bar hole, a limiting arc-shaped plate is rotatably mounted on the semicircular lower ring cylinder, one end of the limiting arc-shaped plate is slidably mounted on the rotating pressing rod, a plurality of flexible ratchet teeth are arranged at the other end of the limiting arc-shaped plate, and the limiting arc-shaped plate and the limiting ratchet wheel form a pawl mechanism.
Further, the locking assembly further comprises a Z-shaped arc plate, the Z-shaped arc plate is fixedly arranged on the semicircular driving annular plate, the front end of the locking frame is provided with a locking push column, and the locking push column is attached to the upper surface of the Z-shaped arc plate.
Further, a limiting pin is slidably arranged on the lower surface of one of the semicircular lower ring cylinders, a limiting spring is arranged between the limiting pin and the semicircular lower ring cylinder, one end of the limiting pin is slidably matched with the driving semi-ring on the inner side of the semicircular lower ring cylinder, which is slidably arranged on the lower surface of the limiting pin, and the limiting pin is used for limiting the rotation of the driving semi-ring.
Further, the two semicircular driving ring plates are provided with driving holes.
Compared with the prior art, the invention has the beneficial effects that: (1) According to the invention, through the mutual matching of the buckling assembly and the limiting assembly, the connection of the riser is realized only by rotating the semicircular driving ring plate, no other operation is required, and the connection speed is greatly improved. (2) According to the invention, through the mutual matching of the buckling component and the locking component, the automatic locking is realized after the riser is fixed, and the rapid fixing of the riser is realized. (3) According to the invention, the semi-circular cylinder and the semi-circular lower cylinder are closed by controlling the locking rod, so that the connection of the two water-stop conduits is completed, the threaded connection is not needed for fixing, the situation that the water-stop conduits cannot be disassembled after long-time use is avoided, the water-stop conduits are convenient to reuse, and the service life is prolonged.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a front view of the internal structure of the present invention.
FIG. 3 is a partial cross-sectional view of a semi-circular cylinder according to the present invention.
Fig. 4 is a partially enlarged schematic view of fig. 3 at a.
Fig. 5 is a schematic diagram of the internal structure of the present invention.
Fig. 6 is a partially enlarged schematic view of fig. 5 at B.
FIG. 7 is a schematic view of a limiting assembly according to the present invention.
Fig. 8 is an enlarged partial schematic view at C in fig. 7.
Fig. 9 is a schematic view of the structure of the locking assembly of the present invention.
Fig. 10 is a partially enlarged schematic view of fig. 9 at D.
Fig. 11 is a schematic structural view of the buckling assembly of the present invention.
Fig. 12 is a bottom view of the restraint assembly of the present invention.
Fig. 13 is a schematic diagram of the internal structure of the present invention.
Fig. 14 is an enlarged partial schematic view of fig. 13 at E.
Reference numerals: 101-semi-circular plates; 102-a semi-circular cylinder; 103-a semicircular lower cylinder; 104-semicircular driving ring plates; 105-sliding bottom plate; 106-fixing the rod; 107-rotating the pressing rod; 108-a slider; 109-limiting blocks; 110-yielding springs; 111-driving a half ring; 112-pressing the lever; 113-Z-shaped arc holes; 114-locating pins; 115-limiting the arc; 116-limit the spur rack; 117-limit ratchet; 118-Z-shaped arcuate plate; 119-locking the push column; 120-locking frame; 121-locking springs; 122-locking bar; 123-a drive hole; 124-driven half-rings; 125-withholding the spring; 126-pressing the block; 127-handle; 128-a limit spring; 129-stop pins; 130-arc shaped bar holes.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples: referring to fig. 1-14, a quick connecting device for a large-caliber metal sealing riser pipe for well drilling comprises two semicircular upper ring cylinders 102 and two semicircular lower ring cylinders 103, wherein sliding fit is adopted between the two semicircular upper ring cylinders 102, the two semicircular upper ring cylinders 102 cannot be pulled transversely when being assembled together in a sliding manner, sliding fit is adopted between the two semicircular lower ring cylinders 103, the two semicircular lower ring cylinders 103 cannot be pulled transversely when being assembled together in a sliding manner, fixing rods 106 are fixedly arranged on the two semicircular upper ring cylinders 102, the fixing rods 106 are in sliding fit with the semicircular lower ring cylinders 103, a plurality of positioning pins 114 are arranged on the semicircular upper ring cylinders 102 and the semicircular lower ring cylinders 103, and a plurality of holes with the same size as the positioning pins 114 are arranged on a flange plate of the riser pipe.
The semicircular driving ring plates 104 are rotatably arranged on the two semicircular lower ring cylinders 103, buckling assemblies are arranged on the two semicircular driving ring plates 104, each buckling assembly comprises a driving semi-ring 111, the driving semi-ring 111 is fixedly arranged on the inner side of the semicircular driving ring plate 104, a pressing rod 112 is fixedly arranged on the driving semi-ring 111, a pressing block 126 is arranged at the front end of the pressing rod 112, a semicircular ring plate 101 is fixedly arranged on the semicircular lower ring cylinder 103, a Z-shaped arc hole 113 is formed in the semicircular ring plate 101, and the pressing block 126 is slidably arranged in the Z-shaped arc hole 113.
The driven semi-ring 124 is slidably mounted on the driving semi-ring 111, the buckling spring 125 is arranged between the driving semi-ring 111 and the driven semi-ring 124, the rotary pressing rod 107 is fixedly mounted on the driven semi-ring 124, the locking rod 122 is fixedly arranged on the rotary pressing rod 107, the locking rod 122 is slidably matched with the fixing rod 106, the driven semi-ring 124 rotates to enable the locking rod 122 to be engaged with the fixing rod 106, the sliding block 108 is slidably mounted on the locking rod 122, the yielding spring 110 is arranged between the sliding block 108 and the locking rod 122, one end of the yielding spring 110 is fixedly connected to the sliding block 108, and the other end of the yielding spring 110 is fixedly connected to the locking rod 122.
After the two semicircular upper ring cylinders 102 and the two semicircular lower ring cylinders 103 are buckled on the riser, the two semicircular upper ring cylinders 102 and the two semicircular lower ring cylinders 103 are assembled in a sliding manner, the fixed rod 106 is connected with the semicircular lower ring cylinders 103 in a sliding manner, the stress rod is inserted into the driving hole 123, the buckling spring 125 is arranged between the driving semi-ring 111 and the driven semi-ring 124, the semicircular driving ring plate 104 is rotated through the stress rod, the locking rod 122 is driven to rotate, the locking rod 122 is connected with the fixed rod 106 until the sliding block 108 contacts the surface of the fixed rod 106, the elasticity of the yielding spring 110 is larger than that of the buckling spring 125, the semicircular driving ring plate 104 continues to rotate at the moment, the buckling spring 125 is compressed, the yielding spring 110 cannot deform, the driven semi-ring 124 cannot displace, the pressing block 126 on the pressing rod 112 slides in the Z-shaped arc hole 113 on the semicircular ring plate 101, the driven semi-ring 124 moves downwards, and the locking rod 122 drives the fixed rod 106 to move downwards, and the semicircular ring cylinder 102 is connected with the semicircular lower ring cylinder 103.
The limiting assembly comprises a sliding bottom plate 105, the sliding bottom plate 105 is fixedly arranged on the semicircular lower ring cylinder 103, a limiting ratchet 117 is rotatably arranged on the sliding bottom plate 105, a torsion spring is arranged between the limiting ratchet 117 and the sliding bottom plate 105, one end of the torsion spring is fixedly connected to the sliding bottom plate 105, the other end of the torsion spring is fixedly arranged on the limiting ratchet 117, a limiting block 109 is slidably arranged on the sliding bottom plate 105, a limiting straight rack 116 is symmetrically slidably arranged on the sliding bottom plate 105, a plurality of flexible ratchets are symmetrically arranged on two sides of the limiting block 109, the limiting block 109 and the limiting straight rack 116 form a pawl mechanism, the limiting block 109 and the locking rod 122 are slidably matched, and the limiting block 109 is used for limiting the vertical position of the locking rod 122.
The limiting ratchet 117 is provided with an arc-shaped strip hole 130, the lower end of the limiting straight rack 116 is slidably arranged in the arc-shaped strip hole 130, the semicircular lower ring cylinder 103 is rotatably provided with a limiting arc plate 115, one end of the limiting arc plate 115 is slidably arranged on the rotary pressing rod 107, the other end of the limiting arc plate 115 is provided with a plurality of flexible ratchets, and the limiting arc plate 115 and the limiting ratchet 117 form a pawl mechanism.
When the riser is connected, the locking rod 122 is engaged with the limiting block 109, when the locking rod 122 moves downwards, the limiting block 109 is driven to move downwards, the limiting block 109 can only move downwards and can not move upwards due to a pawl mechanism formed between the sliding bottom plate 105 and the limiting block 109, after the semicircular upper ring cylinder 102 is engaged with the semicircular lower ring cylinder 103, the semicircular driving ring plate 104 continues to rotate, the yielding spring 110 is compressed, and the limiting ratchet 117 can not rotate when the limiting arc plate 115 moves forwards due to a pawl mechanism formed between the limiting arc plate 115 and the limiting ratchet 117.
The locking assembly is arranged on the two semicircular lower ring cylinders 103, the locking assembly further comprises a Z-shaped arc plate 118, the Z-shaped arc plate 118 is fixedly arranged on the semicircular driving ring plate 104, a locking frame 120 is slidably arranged on the sliding bottom plate 105, a locking spring 121 is arranged between the locking frame 120 and the sliding bottom plate 105, the locking frame 120 is slidably matched with a locking rod 122, the locking frame 120 is used for limiting the transverse position of the locking rod 122, a locking pushing column 119 is arranged at the front end of the locking frame 120, and the locking pushing column 119 is attached to the upper surface of the Z-shaped arc plate 118.
The lower surface of one of the semicircular lower ring cylinder 103 is slidably provided with a limiting pin 129, a limiting spring 128 is arranged between the limiting pin 129 and the semicircular lower ring cylinder 103, the limiting pin 129 is slidably matched with the driving semi-ring 111 on the side, the limiting pin 129 is used for limiting rotation of the driving semi-ring 111, and the lower end face of the limiting pin 129 is fixedly provided with a handle 127.
Working principle: in the normal position, the semicircular driving ring plate 104, the driving semi-ring 111 and the driven semi-ring 124 on the semicircular lower ring cylinder 103 are positioned on the same plane with the end surface of the semicircular lower ring cylinder 103, and the limiting pin 129 is not connected with the driving semi-ring 111, when the water-stop guide pipe is connected, the two semicircular upper ring cylinders 102 and the two semicircular lower ring cylinders 103 are buckled on the water-stop guide pipe, after the two semicircular upper ring cylinders 102 and the two semicircular lower ring cylinders 103 are assembled in a sliding way, the positioning pins 114 on the semicircular upper ring cylinders 102 and the semicircular lower ring cylinders 103 are connected with holes which are arranged on the flange of the water-stop guide pipe and have the same size as the positioning pins 114, and at the moment, the fixing rod 106 is connected with the semicircular lower ring cylinders 103 in a sliding way.
The force-bearing rod is inserted into the driving hole 123, and the semicircular driving ring plate 104 is rotated by the force-bearing rod due to the buckling spring 125 arranged between the driving semi-ring 111 and the driven semi-ring 124, so that the driving semi-ring 111 rotates, the driven semi-ring 124 is driven to rotate by the driving semi-ring 111 and the driven semi-ring 124 due to the buckling spring 125 arranged between the driving semi-ring 111 and the driven semi-ring 124, the locking rod 122 is driven to rotate, the locking rod 122 is engaged with the fixing rod 106, and the locking rod 122 is engaged with the limiting block 109 until the sliding block 108 contacts the surface of the fixing rod 106.
Because the elasticity of the abdication spring 110 is greater than the elasticity of the buckling spring 125, the semicircular driving ring plate 104 continues to rotate at this time, the buckling spring 125 is compressed, the abdication spring 110 cannot deform, and further the driven semi-ring 124 cannot displace, and further the pressing block 126 on the pressing rod 112 slides in the Z-shaped arc hole 113 on the semicircular ring plate 101, so that the driven semi-ring 124 moves downwards, and further the locking rod 122 drives the fixing rod 106 to move downwards, so that the engagement of the semicircular ring cylinder 102 and the semicircular lower ring cylinder 103 is realized, and when the locking rod 122 moves downwards, the limiting block 109 is driven to move downwards, and the limiting block 109 can only move downwards and cannot move upwards due to the pawl mechanism formed between the sliding bottom plate 105 and the limiting block 109.
When the two limiting straight racks 116 are at the normal position, the limiting ratchet 117 is positioned at the innermost side under the action of the torsion spring, the limiting ratchet 117 can not rotate under the action of the torsion spring, the limiting straight racks 116 can be driven to rotate at the maximum angle when in reverse sliding, the limiting straight racks 116 can be completely opened, the limiting of the limiting block 109 is released, when the limiting arc 115 reaches the outermost position, the pressing rod 112 and the lower part of the locking frame 120 are positioned under the sliding hole of the locking frame 120, the Z-shaped driving ring plate 104 rotates, the limiting ratchet 117 can not rotate under the action of a pawl mechanism formed between the limiting arc 115 and the limiting ratchet 117, the limiting arc 115 can not rotate when in forward movement, the limiting arc 115 reaches the outermost position, the limiting arc 115 can drive the limiting straight racks 117 to rotate at the maximum angle when in reverse sliding, the limiting straight racks 116 are completely opened, the limiting of the limiting block 109 are released, when the limiting arc 115 reaches the outermost position, the Z-shaped driving ring plate 104 rotates, the Z-shaped driving ring plate 118 rotates, the Z-shaped driving ring plate 104 rotates, the Z-shaped driving ring plate 118 loosens the supporting ring 120, the limiting guide tube is formed by the limiting guide tube, and the limiting guide tube is correspondingly positioned between the two limiting rods 122, the limiting the sliding rods 111, and the limiting the sliding guide tube 111 is continuously, and the limiting the two limiting semi-ring plate 111 is continuously, and the limiting the sliding rod 120, and the limiting rod is continuously, and the driving the supporting rod 128, and the supporting rod is correspondingly.
When the disassembly is needed, the stress rod is inserted into the driving hole 123, the pull handle 127 moves downwards, the limiting spring 128 is compressed, the driving semi-ring 111 is separated from the limit of the limiting pin 129, and the semicircular driving ring plate 104 is rotated through the stress rod, so that the disassembly is completed through the reverse operation of the steps.
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the present invention without inventive labor, as those skilled in the art will recognize from the above-described concepts.
Claims (5)
1. The utility model provides a well drilling is with heavy-calibre metal seal riser pipe quick connecting device, includes two semicircle upper ring section of thick bamboo (102) and two semicircle lower ring section of thick bamboo (103), two all fixedly on semicircle upper ring section of thick bamboo (102) be provided with dead lever (106), its characterized in that:
a semicircular driving ring plate (104) is rotatably arranged on each semicircular lower ring cylinder (103), buckling components are arranged on each semicircular driving ring plate (104), each buckling component comprises a locking rod (122), each locking rod (122) is in sliding fit with each fixing rod (106), each locking rod (122) moves downwards to enable the corresponding fixing rod (106) to move downwards, and accordingly the semicircular lower ring cylinders (103) and the semicircular upper ring cylinders (102) buckle the waterproof guide pipe;
the two semicircular lower ring cylinders (103) are provided with limiting assemblies and locking assemblies, the limiting assemblies comprise limiting blocks (109) and limiting straight racks (116), a plurality of flexible ratchets are symmetrically arranged on two sides of each limiting block (109), each limiting block (109) and each limiting straight rack (116) form a pawl mechanism, each limiting block (109) is in sliding fit with each locking rod (122), each limiting block (109) is used for limiting the vertical position of each locking rod (122), each locking assembly comprises a locking frame (120), each locking frame (120) is in sliding fit with each locking rod (122), and each locking frame (120) is used for limiting the transverse position of each locking rod (122);
the two semicircular upper ring drums (102) are in sliding fit, the two semicircular upper ring drums (102) cannot be transversely pulled apart when being assembled together in a sliding mode, the two semicircular lower ring drums (103) are in sliding fit, and the two semicircular lower ring drums (103) cannot be transversely pulled apart when being assembled together in a sliding mode;
the buckling assembly comprises a driving semi-ring (111), the driving semi-ring (111) is fixedly arranged on the inner side of a semicircular driving ring plate (104), a pressing rod (112) is fixedly arranged on the driving semi-ring (111), a pressing block (126) is arranged at the front end of the pressing rod (112), a semicircular ring plate (101) is fixedly arranged on a semicircular lower ring cylinder (103), a Z-shaped arc hole (113) is formed in the semicircular ring plate (101), and the pressing block (126) is slidably arranged in the Z-shaped arc hole (113);
the driven semi-ring (124) is slidably mounted on the driving semi-ring (111), the rotary pressing rod (107) is fixedly mounted on the driven semi-ring (124), the locking rod (122) is fixedly mounted on the rotary pressing rod (107), and the driven semi-ring (124) rotates to enable the locking rod (122) to be connected with the fixing rod (106);
the limiting assembly comprises a sliding bottom plate (105), a limiting ratchet wheel (117) is rotatably arranged on the sliding bottom plate (105), a limiting block (109), a limiting straight rack (116) and a locking frame (120) are slidably arranged on the sliding bottom plate (105), a torsion spring is arranged between the limiting ratchet wheel (117) and the sliding bottom plate (105), one end of the torsion spring is fixedly connected to the sliding bottom plate (105), and the other end of the torsion spring is fixedly arranged on the limiting ratchet wheel (117).
2. The quick connecting device for a large-caliber metal seal riser for well drilling according to claim 1, wherein the quick connecting device comprises: the limiting ratchet wheel (117) is provided with an arc-shaped strip hole (130), the lower end of the limiting straight rack (116) is slidably mounted in the arc-shaped strip hole (130), the semicircular lower ring cylinder (103) is rotatably mounted with a limiting arc plate (115), one end of the limiting arc plate (115) is slidably mounted on the rotating pressing rod (107), the other end of the limiting arc plate (115) is provided with a plurality of flexible ratchets, and the limiting arc plate (115) and the limiting ratchet wheel (117) form a pawl mechanism.
3. The quick connecting device for a large-caliber metal seal riser for well drilling according to claim 2, wherein the quick connecting device comprises the following components: the locking assembly further comprises a Z-shaped arc plate (118), the Z-shaped arc plate (118) is fixedly arranged on the semicircular driving annular plate (104), a locking pushing column (119) is arranged at the front end of the locking frame (120), and the locking pushing column (119) is attached to the upper surface of the Z-shaped arc plate (118).
4. The quick connecting device for a large-caliber metal seal riser for well drilling according to claim 1, wherein the quick connecting device comprises: one of them semicircle is the lower surface slidable mounting of a ring section of thick bamboo (103) has spacer pin (129), is provided with spacing spring (128) between spacer pin (129) and the semicircle is a ring section of thick bamboo (103) under, and one end and the lower surface slidable mounting of spacer pin (129) have the inboard drive semi-ring (111) of semicircle is a ring section of thick bamboo (103) under spacer pin (129), and spacer pin (129) are used for restricting the rotation of drive semi-ring (111).
5. The quick connecting device for a large-caliber metal seal riser for well drilling according to claim 1, wherein the quick connecting device comprises: and driving holes (123) are formed in the two semicircular driving ring plates (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211292193.3A CN115749624B (en) | 2022-10-21 | 2022-10-21 | Quick connecting device of large-caliber metal sealing riser pipe for well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211292193.3A CN115749624B (en) | 2022-10-21 | 2022-10-21 | Quick connecting device of large-caliber metal sealing riser pipe for well drilling |
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| Publication Number | Publication Date |
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| CN115749624A CN115749624A (en) | 2023-03-07 |
| CN115749624B true CN115749624B (en) | 2023-06-09 |
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| CN202211292193.3A Active CN115749624B (en) | 2022-10-21 | 2022-10-21 | Quick connecting device of large-caliber metal sealing riser pipe for well drilling |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146772B (en) * | 2011-02-15 | 2013-04-17 | 宝鸡石油机械有限责任公司 | Rotary locking piece type drilling riser connector |
| US8746349B2 (en) * | 2011-03-01 | 2014-06-10 | Vetco Gray Inc. | Drilling riser adapter connection with subsea functionality |
| CN204238869U (en) * | 2014-10-16 | 2015-04-01 | 宝鸡石油机械有限责任公司 | The external circlip type riser-connector of a kind of anti-high moment of torsion type |
| FR3050482B1 (en) * | 2016-04-26 | 2018-03-30 | IFP Energies Nouvelles | CONNECTOR FOR ASSEMBLING TWO ROUND COLUMNS WITH AN EXTERNAL LOCKING RING AND RETENTION MEANS |
| FR3089245B1 (en) * | 2018-12-04 | 2020-11-20 | Ifp Energies Now | Connector for assembling two riser sections with internal locking ring |
| GB2594252B (en) * | 2020-04-20 | 2022-04-27 | Aquaterra Energy Ltd | An improved connector for a subsea drilling riser |
| CN113294098B (en) * | 2021-04-25 | 2022-03-22 | 四川宏华石油设备有限公司 | Connecting device and assembling method of marine drilling riser and riser structure |
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