CN117759201B - Airtight heat-insulating pipe with port protection function - Google Patents
Airtight heat-insulating pipe with port protection function Download PDFInfo
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- CN117759201B CN117759201B CN202410198551.7A CN202410198551A CN117759201B CN 117759201 B CN117759201 B CN 117759201B CN 202410198551 A CN202410198551 A CN 202410198551A CN 117759201 B CN117759201 B CN 117759201B
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- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims description 18
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract description 14
- 238000010168 coupling process Methods 0.000 abstract description 14
- 238000005859 coupling reaction Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 238000009413 insulation Methods 0.000 description 7
- 239000003208 petroleum Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The invention provides an airtight heat-insulating pipe with a port protection function, and relates to the technical field of oilfield heat-insulating pipes. The utility model provides an airtight heat insulating tube with port protect function, includes equidistant sleeve pipe that distributes, sheathed tube downside is provided with the internal thread, sheathed tube upside is provided with the external screw thread, adjacent two sheathed tube internal screw thread and external screw thread screw-thread fit, adjacent two be provided with the sealing ring between the sleeve pipe, the downside rigid coupling of the outer anchor ring of sleeve pipe has the top ring, the top ring rigid coupling has the equidistant fixed plate of circumference, equidistant distribution of circumference the fixed plate is kept away from one side rigid coupling of top ring has the bottom ring, bottom ring sliding connection has equidistant distribution's in circumference slide bar, equidistant distribution of circumference the slide bar is close to adjacent one side rigid coupling of top ring has the fixed shell. When the threaded connection part of the two sleeves breaks, the lower sleeve is prevented from falling into the well by the anti-falling protection.
Description
Technical Field
The invention belongs to the technical field of oilfield heat insulation pipes, and particularly provides an airtight heat insulation pipe with a port protection function.
Background
The heat insulation pipe is a pipe fitting for insulating heat, the heat insulation pipe used underground in an oil field is a sleeve, petroleum and a well wall are mainly separated, the petroleum is prevented from being contacted with the well wall, meanwhile, in the oil pumping process, in order to ensure that the petroleum has better fluidity, the petroleum in the sleeve is required to be ensured to have higher temperature, and the sleeve plays a role in heat insulation of the petroleum at the moment.
At present, the sleeve connection mode mainly comprises threaded connection and hoop connection, the threaded connection mode is that two internal threads and external threads are respectively formed at two ends of a sleeve, two adjacent sleeves are connected through internal threads and external threads, but the threaded connection mode is that the strength of the threaded connection parts of the two sleeves is lower, the sleeve is directly or indirectly contacted with a well wall in the well descending process, accordingly, the sleeve is impacted to shake, the threaded connection parts of the two sleeves are broken when serious, the sleeve below can drop into the well, the sleeve which drops can be damaged, oil field operators are required to salvage the sleeve which drops, and the process is complex.
Disclosure of Invention
The invention provides an airtight heat-insulating pipe with a port protection function, which aims to solve the technical problem that a casing pipe falls into a well in the oilfield pipe-setting process.
The technical scheme of the invention is as follows: the utility model provides an airtight heat insulating tube with port protect function, includes equidistant sleeve pipe that distributes, sheathed tube downside is provided with the internal thread, sheathed tube upside is provided with the external screw thread, adjacent two sheathed tube internal screw thread and external screw thread cooperation are provided with the sealing ring between the adjacent two the sleeve pipe, the downside rigid coupling of the outer anchor ring of sleeve pipe has the top ring, the top ring rigid coupling has equidistant fixed plate of circumference distribution, equidistant circumference distribution the fixed plate is kept away from one side rigid coupling of top ring has the bottom ring, bottom ring sliding connection has equidistant circumference distribution's slide bar, equidistant circumference distribution the slide bar is close to adjacent the one end rigid coupling of top ring has the fixed shell, the bottom ring with the fixed shell all with its below is adjacent sleeve pipe sliding connection, the fixed shell with adjacent between the bottom ring rigid coupling have equidistant circumference distribution's first elastic component, the fixed shell is provided with anti-drop mechanism, anti-drop mechanism is used for preventing adjacent below the sleeve pipe from droing.
Further stated, the underside of the sealing ring is provided with a concave arc-shaped surface, and the upper side of the sleeve is in sealing fit with the arc-shaped surface of the adjacent sealing ring, so as to increase the contact area between the sealing ring and the adjacent sleeve.
Further stated, the anti-drop mechanism comprises a swivel, the swivel rotates to be connected in adjacent in the fixed shell, the bottom ring is provided with the equidistant first fan-shaped groove that distributes in circumference, the fixed shell is provided with equidistant second fan-shaped groove that distributes in circumference, the swivel is provided with equidistant third fan-shaped groove that distributes in circumference, the fixed shell is provided with the guide way, the outer ring face rigid coupling of swivel have with adjacent guide way sliding connection's gag lever post, the upside rigid coupling of the outer anchor face of sleeve pipe has equidistant fan-shaped piece of circumference, the shape of fan-shaped piece with adjacent first fan-shaped groove the second fan-shaped groove with the shape of third fan-shaped groove all equals, first fan-shaped groove with adjacent second fan-shaped groove aligns in vertical direction.
The fixed shell is fixedly connected with limiting blocks positioned on two sides in the adjacent guide groove, the limiting blocks are made of elastic materials, and the limiting blocks are used for limiting the adjacent limiting rods.
Further, the protection mechanism is used for protecting two adjacent threaded joints between the sleeves, the protection mechanism comprises protection plates distributed at equal intervals in the circumferential direction, the protection plates distributed at equal intervals in the circumferential direction are hinged to the adjacent top rings, second elastic pieces are fixedly connected between the protection plates and the adjacent fixing plates, the slide bars are far away from the adjacent fixing shell, an L-shaped plate is fixedly connected to one end of each slide bar, and the L-shaped plate is in limiting fit with one side, far away from the top rings, of each protection plate.
Further, the shape of the protection plate is set to be arc-shaped.
Further stated, the guard plate is provided with the arc protruding near adjacent one side of L shaped plate, L shaped plate is provided with adjacent guard plate arc protruding complex recess.
Further stated, the guard plate is provided with an arcuate slot, and the fixed plate is hinged with a rectangular frame slidably connected with an adjacent arcuate slot.
Further, when the side, away from the adjacent fixed plate, of the rectangular frame is located at the lower side of the arc-shaped groove, an included angle between the rectangular frame and the adjacent protection plate is larger than 90 degrees.
Further, the protection plate is far away from the adjacent friction block is fixedly connected to one side of the top ring, the friction block is provided with equidistant distributed protrusions, and when one side of the rectangular frame, which is far away from the adjacent fixing plate, is located at the lower side of the arc-shaped groove, the arc-shaped protrusions of the protection plate are aligned with the equidistant distributed protrusions of the adjacent friction block in the vertical direction.
Compared with the prior art, the invention has the following advantages: according to the invention, when the threaded connection part of the two sleeves breaks, the lower sleeve is prevented from falling into the well by anti-falling protection, after the threaded connection of the two sleeves is completed, the protection plate is just positioned at the outer side of the threaded connection part of the two sleeves, and in the process of the sleeve falling into the well, the protection plate is preferentially contacted with the protrusions of the well wall, so that the threaded connection part (port) of the two sleeves is prevented from being contacted with the protrusions of the well wall, the effect of centralizing the sleeves is achieved, when the lower sleeve falls, the lower side of the protection plate is close to the well wall, the sleeve above cannot move downwards, so that feedback is given to operators on the ground, the situation that the sleeve falls into the well is generated in the well, and the operators take the upper sleeve and the sleeve which falls into the well out of the well at the same time according to the feedback, the subsequent process of falling into the well is not needed, and the workload of the operators is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view showing the position of the fixing case and the sector block according to the present invention;
FIG. 3 is a cross-sectional view of a three-dimensional structure of the present invention;
FIG. 4 is a perspective view of a sleeve and seal ring of the present invention;
FIG. 5 is an exploded view of the perspective structure of the bottom ring, the stationary housing and the swivel of the present invention;
FIG. 6 is a schematic perspective view showing a state of falling down a lower sleeve according to the present invention;
fig. 7 is a schematic perspective view of a protection mechanism of the present invention.
Reference numerals: 1: sleeve pipe, 3: sealing ring, 4: top ring, 5: fixing plate, 6: bottom ring, 601: first fan-shaped groove, 7: slide bar, 8: fixing shell, 801: second fan-shaped groove, 802: guide groove, 9: first elastic member, 10: swivel, 1001: third fan-shaped groove, 11: limit lever, 12: sector block, 13: stopper, 14: protection plate 1401: arc groove, 15: second elastic member, 16: l-shaped plate, 17: rectangular frame, 18: friction blocks.
Detailed Description
It should be noted that in the various embodiments described, identical components are provided with identical reference numerals or identical component names, wherein the disclosure contained throughout the description can be transferred in a meaning to identical components having identical reference numerals or identical component names. The description of the selected positions in the description, such as the top, bottom, sides, etc., also refer to the figures described directly and shown, and are transferred to new positions in the sense of a change of position, and the specific structure of the heat insulation effect of the sleeve is not shown in the invention, and a cavity or an interlayer is generally formed in the sleeve to reflect the heat insulation effect of the sleeve.
Example 1: 1-4, including upper and lower equidistant sleeve pipe 1 that distributes, the inboard downside of sleeve pipe 1 is provided with the internal thread, the upside of sleeve pipe 1 outer ring face is provided with the external screw thread, the internal screw thread of top sleeve pipe 1 and the external screw thread cooperation of below sleeve pipe 1, be provided with sealing ring 3 between two adjacent sleeve pipes 1, the downside of sealing ring 3 is provided with sunken arcwall face, the upper surface of sleeve pipe 1 is provided with annular bulge, be used for increasing the area of contact between sealing ring 3 and the adjacent sleeve pipe 1, increase sealing nature between sealing ring 3 and the adjacent sleeve pipe 1, avoid sleeve pipe junction to appear oil leakage, the downside rigid coupling of sleeve pipe 1 outer ring face has top ring 4, the lower surface rigid coupling of top ring 4 has four fixed plates 5 of circumference equidistant distribution, the downside rigid coupling of four fixed plates 5 has bottom ring 6, four slide bars 7 of circumference equidistant distribution, the upper end fixedly connected with fixed shell 8 of four slide bars 7, the inboard of bottom ring 6 and the inboard of adjacent fixed shell 8 all have annular bulge for increasing the area between adjacent sleeve pipe 1 and the adjacent sleeve pipe 1, the adjacent elastic element is adjacent sleeve pipe 9, the elastic element is adjacent sleeve pipe 9 is located between the adjacent elastic element, the elastic element is adjacent sleeve pipe 9, the elastic element is adjacent elastic element is prevented from falling off between the adjacent sleeve pipe 1, the adjacent mechanism is adjacent elastic element is 9.
As shown in fig. 2, 3 and 5-7, the anti-falling mechanism comprises a swivel 10, the swivel 10 is rotationally connected in the adjacent fixed shell 8, the inner side surface of the swivel 10 is slidingly connected with the upper part of the outer side of the lower adjacent sleeve 1, four first fan-shaped grooves 601 distributed at equal intervals circumferentially are arranged on the inner side of the bottom ring 6, four second fan-shaped grooves 801 distributed at equal intervals circumferentially are arranged on the inner side of the fixed shell 8, four third fan-shaped grooves 1001 distributed at equal intervals circumferentially are arranged on the inner side of the swivel 10, a guide groove 802 is arranged on the front part of the right side of the fixed shell 8, a limit rod 11 which is slidingly connected with the adjacent guide groove 802 is fixedly connected with the outer ring surface of the swivel 10, the limit rod 11 slides along the adjacent guide groove 802, the limit rod 11 drives the swivel 10 to rotate, four limit blocks 13 positioned on the front side and the rear side in the adjacent guide groove 802 are fixedly connected with the fixed shell 8, the stopper 13 is made of rubber material, the stopper 13 is used for limiting adjacent limiting rods 11, the limiting rods 11 are prevented from sliding randomly in the guide grooves 802, four sector blocks 12 distributed at equal intervals in the circumferential direction are fixedly connected to the upper side of the outer ring surface of the sleeve 1, after the installation of the two sleeves 1 is completed, the sector blocks 12 of the upper sleeve 1 are located above the fixing shell 8 of the upper sleeve 1, the shapes of the sector blocks 12 are equal to those of the adjacent first sector grooves 601, second sector grooves 801 and third sector grooves 1001, the first sector grooves 601 are aligned with the adjacent second sector grooves 801 in the vertical direction, and when the third sector grooves 1001 are aligned with the adjacent second sector grooves 801, the sector blocks 12 move upwards to sequentially penetrate through the adjacent first sector grooves 601, second sector grooves 801 and third sector grooves 1001.
The state shown in fig. 1 is a state in which the upper ferrule 1 has been mounted on the lower ferrule 1, and the two ferrules 1 are in a separated state before being mounted, and the mounting process of the two adjacent ferrules 1 is as follows: firstly, the lower sleeve 1 is fixed at an oilfield wellhead by a gripper, an operator lifts the upper sleeve 1 and is positioned right above the lower sleeve 1 by controlling lifting equipment, in an initial state, a limiting rod 11 is positioned at the rear side of a guide groove 802 and is limited by two limiting blocks 13 at the rear side and cannot move, a third fan-shaped groove 1001 is aligned with an adjacent second fan-shaped groove 801, the first fan-shaped groove 601 is aligned with the adjacent fan-shaped groove 12 up and down, then, the operator controls the upper sleeve 1 to move downwards by controlling the lifting equipment, the upper sleeve 1 drives parts such as a top ring 4, a fixed plate 5 and a bottom ring 6 to move downwards, the fan-shaped blocks 12 on the lower sleeve 1 sequentially pass through the adjacent first fan-shaped groove 601, the second fan-shaped groove 801 and the third fan-shaped groove 1001, then the fixed shell 8 is positioned below the fan-shaped block 12, the operator rotates the limiting rod 11 clockwise, the limiting rod 11 extrudes the two limiting blocks 13 and gradually rotates to the front side of the guide groove 802 by the rear side of the guide groove 802, the limiting rod 11 drives the rotating ring 10 clockwise, the rotating ring 10 rotates the adjacent to the second fan-shaped groove 1001 clockwise, and the adjacent fan-shaped groove 801 rotates the second fan-shaped groove 801 gradually to the front side of the adjacent fan-shaped groove 801, and the adjacent fan-shaped groove 11 is staggered when the front side of the second fan-shaped groove 11 rotates clockwise, and the adjacent fan-shaped groove 801 is staggered.
After the swivel 10 plugs four second fan-shaped grooves 801, an operator drives the sleeve 1 to rotate through lifting equipment, the internal threads of the upper sleeve 1 and the external threads of the lower sleeve 1 are gradually in threaded fit, in the downward moving process of the upper sleeve 1, the two sleeves 1 squeeze the sealing ring 3, the lower side of the sealing ring 3 is a concave arc surface, the contact area between the sealing ring 3 and the lower sleeve 1 is increased, and the tightness between the sealing ring 3 and the lower sleeve 1 is improved.
After the threaded connection of the two casings 1, an operator puts the casing 1 below into the well, fixes the casing 1 above at the oilfield wellhead through the clamping device, and continues to repeat the steps above to continuously install the casing 1 above the casing 1 at the uppermost, because the casing 1 can be contacted with the well wall in the well descending process, generally, a casing centralizer is installed outside the casing 1, the casing 1 is prevented from being directly contacted with the well wall while the casing 1 is centered, although the casing centralizer assists the casing 1 in the well descending, the casing centralizer still can transmit the impact force of the casing centralizer and the well wall to the casing 1, and after the casing 1 is impacted, shaking can occur, because the joint of the two casings 1 is in threaded connection, the threaded connection strength is lower, when the casing 1 shakes, the threaded joint of the two casings 1 is easy to break, the casing 1 at the lower part is easy to break, so that the casing 1 below is separated, the casing 1 below is caused to drop into the well, the well descending condition of the casing 1 is required, the work load of the operator is certainly increased, and therefore, the concrete casing 1 needs to be protected from the falling when the joint is broken as follows: when the lower sleeve 1 falls down, the lower sleeve 1 drives the four segments 12 to move downwards, the four segments 12 are in contact with the fixed shell 8 of the upper sleeve 1, and the fixed shell 8 and the swivel 10 form a circular ring as the swivel 10 already seals the second fanning groove 801, so that the segments 12 are prevented from passing through the adjacent second fanning groove 801.
When the four fan-shaped blocks 12 are in contact with the fixed shell 8 of the upper sleeve 1, the four fan-shaped blocks 12 drive the fixed shell 8 to move downwards, the four first elastic pieces 9 buffer the downward moving speed of the fixed shell 8, the downward moving speed of the lower sleeve 1 is indirectly buffered, the impact force when the lower sleeve 1 falls down is reduced, when the four first elastic pieces 9 are not compressed any more, the fixed shell 8 cannot move downwards, meanwhile, the lower sleeve 1 cannot move downwards, the lower sleeve 1 is protected from falling, then an operator takes the upper sleeve 1 and the lower falling sleeve 1 out of the well without carrying out the subsequent process of salvaging the falling sleeve 1, the workload of the operator is reduced, and after the falling sleeve 1 is taken out of the well, the operator replaces the damaged sleeve 1 to continue to complete the pipe-falling operation.
Example 2: on the basis of the embodiment 1, as shown in fig. 2, 3, 6 and 7, the device further comprises equidistant protection mechanisms, the equidistant protection mechanisms are respectively arranged on the adjacent top rings 4, the protection mechanisms are used for protecting the threaded connection parts between the adjacent two casings 1, the protection mechanisms comprise four protection plates 14 which are circumferentially equidistant and are hinged to the outer sides of the adjacent top rings 4, the protection plates 14 are arc-shaped, when the casings 1 move downwards, the outer sides of the protection plates 14 are preferentially contacted with a well wall, so that the port of the casings 1 is protected, a second elastic piece 15 is fixedly connected between the protection plates 14 and the adjacent fixed plates 5, the second elastic piece 15 is a spring, when the protection plates 14 are contacted with the well wall protrusions, the extrusion force of the protection plates 14 is buffered by the second elastic piece 15, and the impact force born by the casings 1 is indirectly reduced, the lower end of the slide bar 7 is fixedly connected with an L-shaped plate 16, the L-shaped plate 16 is matched with the lower side of an adjacent protection plate 14 in a limiting way, the lower side of the protection plate 14 is provided with an arc-shaped bulge, the L-shaped plate 16 is provided with a groove matched with the arc-shaped bulge of the adjacent protection plate 14, the second elastic piece 15 is in a compressed state in an initial state, the limiting way of the lower side of the protection plate 14 by the L-shaped plate 16 is used for avoiding the second elastic piece 15 from resetting, the lower side of the middle part of the protection plate 14 is provided with an arc-shaped groove 1401, the lower part of the fixing plate 5 is hinged with a rectangular frame 17 in sliding connection with the adjacent arc-shaped groove 1401, when one side of the rectangular frame 17 far away from the adjacent fixing plate 5 is positioned at the lower side of the arc-shaped groove 1401, the included angle between the rectangular frame 17 and the adjacent protection plate 14 is larger than 90 degrees, when the protection plate 14 is close to the sleeve 1, the rectangular frame 17 does not prevent the protection plate 14 from being close to the sleeve 1, the lower side of the protection plate 14 is fixedly connected with a friction block 18, the friction block 18 is provided with two bulges in equal interval distribution, as shown in fig. 7, when the rectangular frame 17 is located at the lower side of the arc-shaped groove 1401 away from the side of the adjacent fixing plate 5, the arc-shaped protrusions of the shielding plate 14 are aligned with the two protrusions of the adjacent friction block 18 in the vertical direction, increasing the friction between the lower side of the shielding plate 14 and the well wall.
In the process of the casing 1 going down the well, the guard plate 14 can also go down the well synchronously, the shape of the guard plate 14 is arc, the guard plate 14 is preferentially contacted with the protrusions of the well wall, thereby the threaded connection of the two casings 1 is prevented from being contacted with the protrusions of the well wall, the threaded connection of the two casings 1 is protected (the strength of the threaded connection of the two casings 1 is lower), the guard plate 14 is equivalent to a casing centralizer, a new casing centralizer is not needed to be additionally added, the guard plate 14 is just positioned at the connection of the two casings 1, after the two casings 1 are connected, the guard plate 14 is automatically positioned, the existing casing centralizer is required to be manually positioned, the positioning process is complicated, when the guard plate 14 is contacted with the protrusions of the well wall, the lower side of the guard plate 14 is close to the casing 1, the second elastic piece 15 is compressed, the impact force of the guard plate 14 is buffered, the impact force born by the casing 1 is reduced, the upper side of the rectangular frame 17 slides upwards along the arc-shaped groove 1401 in the process of the lower side of the guard plate 14, but the lower side of the guard plate 14 is still limited, the lower side of the guard plate 14 cannot be far away from the casing 1, the adjacent lower side of the L16 is limited, and the adjacent side of the guard plate 14 is always limited, and the lower side of the adjacent side of the guard plate is not limited by the adjacent side of the L16 is ensured when the adjacent side of the guard plate is limited to the lower side of the adjacent side of the guard plate 1.
When the lower sleeve 1 falls, taking the slide bar 7 on the right side as an example, the slide bar 7 drives the L-shaped plate 16 to move downwards, the L-shaped plate 16 moves downwards to remove the limit on the lower side of the protection plate 14, the second elastic piece 15 in a compressed state resets to drive the lower side of the protection plate 14 to be away from the sleeve 1, the lower side of the protection plate 14 drives the friction block 18 to be away from the sleeve 1 and to be in contact with the well wall, when the lower sleeve 1 is no longer falling, the state is shown in fig. 7, at the moment, the arc-shaped protrusions on the lower side of the protection plate 14 and the two protrusions of the friction block 18 are in contact with the well wall, the contact area between the lower side of the protection plate 14 and the well wall is increased, the friction block 18 and the protection plate 14 enable the top ring 4 and the upper sleeve 1 to move downwards, meanwhile, the lower sleeve 1 cannot move downwards, and at the moment, operators on the ground find that the sleeve 1 cannot continue to be lowered, the down phenomenon is known, the operators drive the upper sleeve 1 to move upwards through lifting equipment, the upper sleeve 1 drives the top ring 4, the fixing plate 5, the bottom ring 6,7, the fixing shell 8 and the fixing shell 10 are in contact with the well wall 10, the two protrusions 10 are in contact with the side of the protection plate 14, and the two adjacent side of the protection plate 14 are in contact with the rectangular sleeve 14, the two side of the protection plate 14 are in the adjacent side of the protection plate 1, and the arc-shaped sleeve 1 is not affected by the arc-shaped sleeve 14, the angle between the two side of the protection plate 1 is moved by the top ring and the protection plate 1 is moved by the lifting device and the upper side is in contact with the lifting device, and the angle is moved by the lifting device, and the upper side of the protection plate is moved.
The foregoing is only illustrative of the present invention and is not to be construed as limiting the scope of the invention, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present invention or by other related art, either directly or indirectly, are intended to be included within the scope of the invention.
Claims (2)
1. The utility model provides an airtight heat insulating tube with port protect function, including equidistant sleeve pipe (1) that distributes, the downside of sleeve pipe (1) is provided with the internal thread, the upside of sleeve pipe (1) is provided with the external screw thread, adjacent two the internal thread and the external screw thread screw-thread fit of sleeve pipe (1), characterized by: the sealing device is characterized by further comprising a sealing ring (3), wherein the sealing ring (3) is arranged between two adjacent sleeves (1), a top ring (4) is fixedly connected to the lower side of the outer ring surface of each sleeve (1), a fixing plate (5) distributed at equal intervals in the circumferential direction is fixedly connected to the top ring (4), a bottom ring (6) is fixedly connected to one side, away from the top ring (4), of each fixing plate (5), a sliding rod (7) distributed at equal intervals in the circumferential direction is connected to the bottom ring (6) in a sliding manner, a fixing shell (8) is fixedly connected to one end, close to the adjacent top ring (4), of each sliding rod (7), of each bottom ring (6) and each adjacent fixing shell (8) are both in sliding connection with the adjacent sleeve (1) below the corresponding fixing shell, a first elastic piece (9) distributed at equal intervals in the circumferential direction is fixedly connected between each fixing shell (8) and each adjacent bottom ring (6), and each fixing shell (8) is provided with an anti-falling mechanism used for preventing the adjacent sleeve (1) from falling off;
The anti-falling mechanism comprises a swivel (10), the swivel (10) is rotationally connected in the adjacent fixed shell (8), the bottom ring (6) is provided with first fan-shaped grooves (601) distributed at equal intervals in the circumferential direction, the fixed shell (8) is provided with second fan-shaped grooves (801) distributed at equal intervals in the circumferential direction, the swivel (10) is provided with third fan-shaped grooves (1001) distributed at equal intervals in the circumferential direction, the fixed shell (8) is provided with guide grooves (802), the outer ring surface of the swivel (10) is fixedly connected with limiting rods (11) which are connected with the adjacent guide grooves (802) in a sliding mode, the upper side of the outer ring surface of the sleeve (1) is fixedly connected with fan-shaped blocks (12) distributed at equal intervals in the circumferential direction, the shape of each fan-shaped block (12) is equal to that of the adjacent first fan-shaped grooves (601), the second fan-shaped grooves (801) and the third fan-shaped grooves (1001), and the first fan-shaped grooves (601) are aligned with the adjacent second fan-shaped grooves (801) in the vertical direction.
Limiting blocks (13) positioned on two sides in the adjacent guide grooves (802) are fixedly connected to the fixed shell (8), the limiting blocks (13) are made of elastic materials, and the limiting blocks (13) are used for limiting the adjacent limiting rods (11);
The novel anti-theft protection device is characterized by further comprising equidistant protection mechanisms, wherein the equidistant protection mechanisms are respectively arranged on the adjacent top rings (4), the protection mechanisms are used for protecting threaded joints between the adjacent two sleeves (1), each protection mechanism comprises a protection plate (14) which is circumferentially equidistant, the circumferentially equidistant protection plates (14) are hinged to the adjacent top rings (4), a second elastic piece (15) is fixedly connected between each protection plate (14) and the adjacent fixed plate (5), an L-shaped plate (16) is fixedly connected to one end, far away from the adjacent fixed shell (8), of each sliding rod (7), and the L-shaped plate (16) is in limit fit with one side, far away from the top rings (4), of each protection plate (14);
The shape of the protection plate (14) is set to be arc-shaped;
An arc-shaped bulge is arranged on one side, close to the adjacent L-shaped plate (16), of the protection plate (14), and a groove matched with the arc-shaped bulge of the adjacent protection plate (14) is formed in the L-shaped plate (16);
the protection plate (14) is provided with an arc-shaped groove (1401), and the fixed plate (5) is hinged with a rectangular frame (17) which is connected with the adjacent arc-shaped groove (1401) in a sliding manner
When the rectangular frame (17) is far away from the side of the adjacent fixed plate (5) and is positioned at the lower side of the arc-shaped groove (1401), an included angle between the rectangular frame (17) and the adjacent protection plate (14) is larger than 90 degrees;
The protection plate (14) is far away from the adjacent friction block (18) is fixedly connected to one side of the top ring (4), the friction block (18) is provided with equidistant distributed protrusions, and when one side of the rectangular frame (17) far away from the adjacent fixed plate (5) is located on the lower side of the arc-shaped groove (1401), the arc-shaped protrusions of the protection plate (14) are aligned with the equidistant distributed protrusions of the adjacent friction block (18) in the vertical direction.
2. The airtight heat-insulating tube with a port protection function according to claim 1, characterized in that: the lower side of sealing ring (3) is provided with sunken arcwall face, the upside of sleeve pipe (1) with adjacent arcwall face sealing fit of sealing ring (3) is used for increasing sealing ring (3) with adjacent area of contact between sleeve pipe (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410198551.7A CN117759201B (en) | 2024-02-22 | 2024-02-22 | Airtight heat-insulating pipe with port protection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410198551.7A CN117759201B (en) | 2024-02-22 | 2024-02-22 | Airtight heat-insulating pipe with port protection function |
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| CN117759201A CN117759201A (en) | 2024-03-26 |
| CN117759201B true CN117759201B (en) | 2024-04-16 |
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| CN117927749B (en) * | 2024-03-22 | 2024-05-17 | 胜利油田胜机石油装备有限公司 | Novel heat insulation coupling for heat insulation pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998479A (en) * | 1974-12-23 | 1976-12-21 | Smith International, Inc. | Dual conduit drill stem member and connection |
| CN114412454A (en) * | 2022-02-14 | 2022-04-29 | 王静凯 | Oil drilling is with logging instrument while drilling with high-strength antidetonation function |
| CN116084879A (en) * | 2023-04-10 | 2023-05-09 | 胜利油田利丰稠油技术开发有限公司 | Tail pipe suspension packer with anti-impact function for well cementation |
| CN116398060A (en) * | 2023-05-15 | 2023-07-07 | 山东高原油气装备有限公司 | High leakproofness petroleum casing pipe joint with self-locking function |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9657533B2 (en) * | 2014-07-31 | 2017-05-23 | Tesco Corporation | Drilling component retention system and method |
| EP3951131A1 (en) * | 2020-08-06 | 2022-02-09 | Vallourec Oil And Gas France | Securing system intended to secure a cable to a tube |
-
2024
- 2024-02-22 CN CN202410198551.7A patent/CN117759201B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998479A (en) * | 1974-12-23 | 1976-12-21 | Smith International, Inc. | Dual conduit drill stem member and connection |
| CN114412454A (en) * | 2022-02-14 | 2022-04-29 | 王静凯 | Oil drilling is with logging instrument while drilling with high-strength antidetonation function |
| CN116084879A (en) * | 2023-04-10 | 2023-05-09 | 胜利油田利丰稠油技术开发有限公司 | Tail pipe suspension packer with anti-impact function for well cementation |
| CN116398060A (en) * | 2023-05-15 | 2023-07-07 | 山东高原油气装备有限公司 | High leakproofness petroleum casing pipe joint with self-locking function |
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