CN113833907B

CN113833907B - Ocean engineering submarine pipeline lifting device

Info

Publication number: CN113833907B
Application number: CN202110949403.0A
Authority: CN
Inventors: 雷体翠
Original assignee: Maoming New Jinming Petroleum Co ltd
Current assignee: Maoming New Jinming Petroleum Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2023-07-04
Anticipated expiration: 2041-08-18
Also published as: CN113833907A

Abstract

The invention relates to the technical field of submarine pipeline lifting devices, in particular to a submarine pipeline lifting device for ocean engineering, which comprises a main body, a fixing mechanism, a clamping mechanism, an opening and closing mechanism, a limiting mechanism and a lifting mechanism, wherein the limiting mechanism is arranged on the main body; the fixing mechanism is arranged so as to facilitate the insertion of a plurality of fixing parts onto the sea bottom surface, thereby facilitating the rapid fixing operation of the main body and improving the fixing efficiency; the arrangement of the limiting mechanism further facilitates limiting the movable range of the clamping mechanism, so that the effect of clamping the pipeline on the clamping mechanism is better, the opening and closing mechanism convenient to control is arranged to facilitate the installation of the clamping mechanism on the pipeline, and the self-locking is realized after the installation, so that the loosening of the clamping mechanism after the pipeline is fixed is avoided, and the fixing effect of the clamping mechanism on the pipeline is maintained; the height of the home clamping mechanism is conveniently adjusted through the arrangement of the lifting mechanism, the compensation effect is achieved on the topography of the seabed, the multi-section pipeline is kept at a straight line position, the multi-section pipeline is prevented from being bent, and the resistance of the pipeline in conveying objects is reduced.

Description

Ocean engineering submarine pipeline lifting device

Technical Field

The invention relates to the technical field of submarine pipeline lifting devices, in particular to a submarine pipeline lifting device for ocean engineering.

Background

The submarine pipeline is a pipeline for continuously conveying a large amount of oil (gas) on the seabed through a closed pipeline, is a main component of an offshore oil (gas) field development and production system, and is the fastest, safest and economic and reliable offshore oil and gas transportation mode. The use of dedicated subsea pipeline lifting devices is required when laying pipelines to the seafloor.

However, when traditional device applies to the installation operation of pipeline, only have single fixed action, do not have the effect of convenient fine setting pipeline's height, can not adjust the compensation according to the topography of seabed, lead to the fact the multistage pipeline to connect the back bending with angle easily to increased the conveying resistance of pipeline, and traditional device is fixed when the seabed, generally need operate fixed part one by one, increased the time when fixing device operates, reduced fixed efficiency, increased the degree of difficulty of pipeline installation.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a marine engineering submarine pipeline lifting device.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a marine engineering submarine pipeline hoisting device, includes main part, fixed establishment of institution, fixture, opening and shutting mechanism, stop gear and elevating system, is used for right the main part plays fixed action fixed establishment of institution the inside of main part is used for the fixed pipeline of centre gripping the fixture is located the dead end of main part is used for with the fixture is spacing gliding in the main part stop gear locates the dead end of main part is used for control to adjust two the fixture distance opening and shutting mechanism locates the inside of main part is used for adjusting the fixture height elevating system locates the inside of fixture.

Specifically, fixed establishment includes fixed thread bolt, first gear, chain, first pivot, second gear and third gear, the inside rotation of main part is connected with four first gear, the inside sliding connection of first gear has fixed thread bolt, just the bottom of fixed thread bolt extends to the bottom of main part, just fixed thread bolt threaded connection in the main part, the main part middle part rotates and is connected with first pivot, the outside fixedly connected with of first pivot the second gear with third gear, third gear and a plurality of meshing is connected with between the first gear the chain.

Specifically, stop gear includes slide, first spacing groove, second spacing groove and strengthening rib, the top of main part is equipped with the cross-section is the protruding word form the second spacing groove, just the both sides of main part are equipped with one respectively first spacing groove, first spacing groove with the inside in second spacing groove is sliding connection jointly has two the slide, the top middle part fixedly connected with of slide is a plurality of triangular form the strengthening rib.

Specifically, fixture includes fixed arm, flexible arm, clamp splice and sand grip, the top fixedly connected with of slide the fixed arm, just fixed arm with a plurality of fixed connection between the strengthening rib, the top of fixed arm is equipped with flexible arm, flexible arm's bottom sliding connection in the inside of fixed arm, flexible arm's top is rotated and is connected with the clamp splice, one of them the top fixedly connected with of clamp splice the sand grip, and another one the bottom fixedly connected with of clamp splice the sand grip, the clamp splice is semicircle form.

Specifically, the mechanism that opens and shuts includes first motor, fourth gear, selector lever, first awl tooth, second awl tooth and second pivot, the internally mounted of main part has first motor, the top sliding connection of first motor has the fourth gear, the top fixedly connected with of fourth gear first awl tooth, the top of first awl tooth is equipped with the second awl tooth, the inside of second spacing groove is equipped with the second pivot, second pivot fixed connection in the middle part of second awl tooth, one side of fourth gear is contradicted has the selector lever, the selector lever install in the inside of main part.

Specifically, elevating system includes second motor, worm, turbine, winding dish, the internally mounted of fixed arm has the second motor, the top fixedly connected with of second motor the worm, one side of worm is equipped with the turbine, the turbine rotate connect in the inside of fixed arm, just the worm with the meshing is connected between the turbine, one side fixedly connected with of turbine the winding dish.

Specifically, elevating system still includes mount, pulley and stay cord, the inside fixedly connected with of fixed arm is the U shape the mount, the top and the bottom of mount are fixedly connected with two respectively the pulley, the winding dish with twine between the pulley has the stay cord, the one end fixedly connected with of stay cord in the bottom inner wall of flexible arm.

The beneficial effects of the invention are as follows:

(1) The ocean engineering submarine pipeline lifting device is used for arranging the fixing mechanism with the main body having a fixing function in the main body, a plurality of fixing components are conveniently inserted into the seabed surface through the arrangement of the fixing mechanism, the main body is conveniently and rapidly fixed, and the fixing efficiency is improved, namely: when the main body is required to be fixed on a proper seabed, the required fixing position is cleaned at first, the bottom end of the main body is conveniently attached to the seabed, the first motor inside the opening and closing mechanism is started, the third gear is driven to rotate through the first motor, the first rotating shaft is fixedly connected with the second gear and the third gear, the second gear is driven to rotate when the third gear rotates, the first gears and the second gear are synchronously driven through meshed chains, the first gears are conveniently driven to synchronously rotate in the same direction, the fixed threaded bolt is in sliding connection with the first gears and is in threaded connection with the main body, the first gears are used for driving the fixed threaded bolt to synchronously rotate in the rotation, the fixed threaded bolt moves to the bottom end of the main body in the rotation, so that the effect of being inserted into the seabed is achieved, the fixed threaded bolts are conveniently and rapidly inserted into the main body, the fixed parts are prevented from being independently operated one by one, and the fixed efficiency is improved.

(2) According to the ocean engineering submarine pipeline lifting device, the clamping mechanism for clamping and fixing the pipeline is arranged at the fixed end of the main body, the limiting mechanism for limiting the clamping mechanism to slide on the main body is arranged at the fixed end of the main body, the opening and closing mechanism for controlling and adjusting the distance between the two clamping mechanisms is arranged in the main body, the limiting mechanism is arranged so as to conveniently limit the moving range of the clamping mechanism, the effect of clamping the pipeline on the clamping mechanism is better, the opening and closing mechanism convenient to control is arranged so as to facilitate the installation of the clamping mechanism on the pipeline, the clamping mechanism is prevented from loosening after the pipeline is fixed, and the fixing effect of the clamping mechanism on the pipeline is maintained, namely: the slide plays the limiting effect through the setting of first spacing groove and second spacing groove fixed connection main part, make the slide more steady in the removal regulation, avoid the slide to break away from the main part in moving, be equipped with a plurality of strengthening ribs that are used for improving connection structural strength between fixed arm and the slide, and then improve firm intensity between fixed arm and the slide greatly, a clamp splice for centre gripping pipeline is through being connected between telescopic arm and the fixed arm, curved clamp splice design convenience is fixed the pipeline, when need adjust the distance of two slides and fix the pipeline, at first start first motor, fourth gear and first awl tooth rotation on first motor drive top, the selector lever is contradicted in one side of fourth gear, when needs drive fixed establishment move, then operate the selector lever, slide the position of meshing third gear with the fourth gear, when needs fixed pipeline, then promote fourth gear to the top through the selector lever and slide, make first awl tooth contact engagement to the second awl tooth, fixed connection between second awl tooth and the second pivot, second and two internal connection screw thread, and two screw thread side parts of two, and two side thread drive the two side drive screw thread parts of the side channel, and two side drive the two side channel drive, and the two side drive screw thread parts of the side channel, the two side drive, the two side channel drive, and the opposite side channel drive, the power is convenient for the opposite, and the two side channel drive and the opposite, and the channel drive.

(4) The lifting mechanism for adjusting the height of the clamping mechanism is arranged in the clamping mechanism, the height of the clamping mechanism is conveniently adjusted through the arrangement of the lifting mechanism, the compensation effect is achieved on the topography of the seabed, the multi-section pipeline is kept at a straight line position, the multi-section pipeline is prevented from bending, the resistance when the pipeline conveys objects is reduced, namely: when the topography of the seabed is lower, in order to keep multistage pipeline in same straight line position, then the inside second motor of synchronous start fixed arm, the worm on second motor drive top, worm meshing turbine rotates, fixed connection between turbine and the winding dish, through stay cord winding transmission between a plurality of pulleys of fixed arm inside and the winding dish, when the winding dish rotates shrink stay cord, the other end of stay cord is with the quick roll-off of flexible arm outside with the winding volume of one time stay cord, the auto-lock setting between worm and the turbine is convenient keeps fixed position unchanged after sliding flexible arm, and then conveniently adjust the promotion pipeline height, play the compensation effect to the seabed topography, keep multistage pipeline at right angle, reduce the pipe connection bending angle, drag when reducing the pipeline transportation object.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of the overall structure of a preferred embodiment of a marine engineering submarine pipeline lifting device according to the present invention;

FIG. 2 is a schematic structural view of the fixing mechanism shown in FIG. 1;

FIG. 3 is a schematic view of a connection structure of the fixing mechanism and the opening and closing mechanism shown in FIG. 2;

FIG. 4 is a schematic view of the connection between the clamping mechanism and the lifting mechanism shown in FIG. 1;

FIG. 5 is an enlarged schematic view of the portion A shown in FIG. 1;

FIG. 6 is an enlarged view of the portion B shown in FIG. 2;

FIG. 7 is an enlarged view of the structure of the portion C shown in FIG. 3;

fig. 8 is an enlarged schematic view of the portion D shown in fig. 4.

In the figure: 1. the device comprises a main body, 2, a fixing mechanism, 21, a fixed threaded bolt, 22, a first gear, 23, a chain, 24, a first rotating shaft, 25, a second gear, 26, a third gear, 3, a clamping mechanism, 31, an arm, 32, a telescopic arm, 33, a clamping block, 34, a convex strip, 4, an opening and closing mechanism, 41, a first motor, 42, a fourth gear, 43, a switching rod, 44, a first bevel gear, 45, a second bevel gear, 46, a second rotating shaft, 5, a limiting mechanism, 51, a sliding plate, 52, a first limiting groove, 53, a second limiting groove, 54, a reinforcing rib, 6, a lifting mechanism, 61, a second motor, 62, a worm, 63, a turbine, 64, a winding disc, 65, a fixing frame, 66, a pulley, 67 and a pull rope.

Detailed Description

The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

As shown in fig. 1-8, the ocean engineering submarine pipeline lifting device of the invention comprises a main body 1, a fixing mechanism 2, a clamping mechanism 3, an opening and closing mechanism 4, a limiting mechanism 5 and a lifting mechanism 6, wherein the fixing mechanism 2 for fixing the main body 1 is arranged in the main body 1, the clamping mechanism 3 for clamping and fixing a pipeline is arranged at the fixed end of the main body 1, the limiting mechanism 5 for limiting the clamping mechanism 3 to slide on the main body 1 is arranged at the fixed end of the main body 1, the opening and closing mechanism 4 for controlling and adjusting the distance between the two clamping mechanisms 3 is arranged in the main body 1, and the lifting mechanism 6 for adjusting the height of the clamping mechanism 3 is arranged in the clamping mechanism 3.

Specifically, the fixing mechanism 2 includes a fixing threaded bolt 21, a first gear 22, a chain 23, a first rotating shaft 24, a second gear 25 and a third gear 26, four first gears 22 are rotatably connected in the main body 1, the fixing threaded bolt 21 is slidably connected in the first gears 22, the bottom end of the fixing threaded bolt 21 extends to the bottom end of the main body 1, the fixing threaded bolt 21 is in threaded connection with the main body 1, the first rotating shaft 24 is rotatably connected in the middle of the main body 1, the second gear 25 and the third gear 26 are fixedly connected in the outer side of the first rotating shaft 24, and the chain 23 is in meshed connection with the third gear 26 and a plurality of first gears 22; the fixing mechanism 2 for fixing the main body 1 is arranged in the main body 1, and a plurality of fixing parts are conveniently inserted into the sea bottom surface through the arrangement of the fixing mechanism 2, so that the main body 1 is conveniently and rapidly fixed, the fixing efficiency is improved, namely: when the main body 1 needs to be fixed on a proper seabed, the required fixing position is cleaned at first, the bottom end of the main body 1 is convenient to attach to the seabed, the first motor 41 inside the opening and closing mechanism 4 is started, the first motor 41 drives the third gear 26 to rotate, the first rotating shaft 24 is fixedly connected with the second gear 25 and the third gear 26, the third gear 26 rotates and drives the second gear 25 to rotate, a plurality of first gears 22 and second gears 25 are synchronously driven through meshed chains 23, a plurality of first gears 22 are conveniently driven to synchronously rotate in the same direction, the fixed threaded bolts 21 are slidably connected with the first gears 22 and are in threaded connection with the main body 1, the first gears 22 drive the fixed threaded bolts 21 to synchronously rotate in rotation, the fixed threaded bolts 21 move to the bottom end of the main body 1 in rotation, so that the function of the main body 1 is achieved, the plurality of fixed threaded bolts 21 are synchronously inserted into the seabed, the main body is conveniently and rapidly inserted into the fixed threaded bolts, and the fixing function of the main body 1 is conveniently and rapidly and fixedly operated.

Specifically, the stop gear 5 includes slide 51, first spacing groove 52, second spacing groove 53 and strengthening rib 54, the top of main part 1 is equipped with the cross-section is the protruding word form the second spacing groove 53, just the both sides of main part 1 are equipped with one respectively first spacing groove 52, first spacing groove 52 with the inside in second spacing groove 53 is sliding connection jointly has two slide 51, the top middle part fixedly connected with of slide 51 is a plurality of triangular strengthening ribs 54.

Specifically, the fixture 3 includes the fixed arm 31, flexible arm 32, clamp splice 33 and sand grip 34, the top fixedly connected with of slide 51 the fixed arm 31, just fixed arm 31 and a plurality of fixed connection between the strengthening rib 54, the top of fixed arm 31 is equipped with flexible arm 32, the bottom sliding connection of flexible arm 32 in the inside of fixed arm 31, the top rotation of flexible arm 32 is connected with clamp splice 33, one of them clamp splice 33's top fixedly connected with sand grip 34, and another one clamp splice 33's bottom fixedly connected with sand grip 34, clamp splice 33 is the semicircle form.

Specifically, the opening and closing mechanism 4 includes a first motor 41, a fourth gear 42, a switching lever 43, a first bevel gear 44, a second bevel gear 45 and a second rotating shaft 46, the first motor 41 is installed inside the main body 1, the top end of the first motor 41 is slidably connected with the fourth gear 42, the top end of the fourth gear 42 is fixedly connected with the first bevel gear 44, the top end of the first bevel gear 44 is provided with the second bevel gear 45, the second rotating shaft 46 is arranged inside the second limiting groove 53, the second rotating shaft 46 is fixedly connected with the middle part of the second bevel gear 45, one side of the fourth gear 42 is abutted against the switching lever 43, and the switching lever 43 is installed inside the main body 1; the clamping mechanism 3 for clamping and fixing the pipeline is arranged at the fixed end of the main body 1, the clamping mechanism 3 is limited at the fixed end of the main body 1, the limiting mechanism 5 sliding on the main body 1 is arranged at the fixed end of the main body 1, the opening and closing mechanism 4 for controlling and adjusting the distance between the two clamping mechanisms 3 is arranged inside the main body 1, the limiting mechanism 5 is arranged to facilitate limiting the moving range of the clamping mechanism 3, so that the pipeline is clamped to the clamping mechanism 3, the effect is better, the opening and closing mechanism 4 is convenient to control, the clamping mechanism 3 is convenient to install the pipeline, the self-locking is realized after the installation, the clamping mechanism 3 is prevented from loosening after the pipeline is fixed, the fixing effect of the clamping mechanism 3 on the pipeline is maintained, namely: the sliding plate 51 is fixedly connected with the main body 1 through the first limiting groove 52 and the second limiting groove 53, the first limiting groove 52 and the second limiting groove 53 are arranged to conveniently limit the movement of the sliding plate 51, so that the sliding plate 51 is more stable in moving procedure, the sliding plate 51 is prevented from being separated from the main body 1 in moving, a plurality of reinforcing ribs 54 for improving the strength of a connecting structure are arranged between the fixed arm 31 and the sliding plate 51, the firm strength between the fixed arm 31 and the sliding plate 51 is greatly improved, the clamping block 33 for clamping a pipeline is connected between the telescopic arm 32 and the fixed arm 31 through the telescopic arm 32, the arc-shaped clamping block 33 is designed to conveniently fix the pipeline, when the distance between the two sliding plates 51 is required to be adjusted, the first motor 41 is started firstly, the first motor 41 drives the fourth gear 42 and the first bevel gear 44 at the top end to rotate, the switching rod 43 is abutted against one side of the fourth gear 42, when the second gear 45 is required to be in contact with the second bevel gear 42, the second bevel gear 45 is required to be driven, the second bevel gear 45 is required to be meshed with the second bevel gear 45 when the second bevel gear 45 is required to be in contact with the second bevel gear 45, the sliding rod is required to be connected with the second bevel gear 46, the two bevel gear 45 is required to be meshed with the second bevel gear 46, and the two bevel gear 46 is required to be meshed with the second bevel gear 46, the second bevel gear 46 is required to be meshed with the second gear 45, the second bevel gear is convenient to be fixed, the second gear is simultaneously, the second gear is fixed, the second gear is required to be fixed, the gear is simultaneously, the power transmission direction is conveniently switched through the arrangement of the switching rod 43, so that power is conveniently provided for fixing the main body 1 or installing a pipeline, and the arrangement of redundant power components in the main body 1 is reduced.

Specifically, the lifting mechanism 6 includes a second motor 61, a worm 62, a worm wheel 63, and a winding disc 64, the second motor 61 is mounted in the fixing arm 31, the worm 62 is fixedly connected to the top end of the second motor 61, the worm wheel 63 is disposed on one side of the worm 62, the worm wheel 63 is rotatably connected to the inside of the fixing arm 31, the worm wheel 62 is meshed with the worm wheel 63, and the winding disc 64 is fixedly connected to one side of the worm wheel 63.

Specifically, the lifting mechanism 6 further includes a fixing frame 65, a pulley 66 and a pull rope 67, the fixing frame 65 having a U shape is fixedly connected to the inside of the fixing arm 31, two pulleys 66 are fixedly connected to the top end and the bottom end of the fixing frame 65, the pull rope 67 is wound between the winding disc 64 and the pulleys 66, and one end of the pull rope 67 is fixedly connected to the bottom end inner wall of the telescopic arm 32; the lifting mechanism 6 for adjusting the height of the clamping mechanism 3 is arranged inside the clamping mechanism 3, the height of the clamping mechanism 3 is conveniently adjusted through the arrangement of the lifting mechanism 6, the compensation effect is achieved on the topography of the seabed, the multi-section pipeline is kept at a linear position, the multi-section pipeline is prevented from bending, the resistance when the pipeline is used for conveying objects is reduced, and the method comprises the following steps: when the seabed is in a lower position, in order to keep a plurality of sections of pipelines at the same straight line position, the second motor 61 in the fixed arm 31 is synchronously started, the second motor 61 drives the worm 62 at the top end, the worm 62 is meshed with the worm wheel 63 to rotate, the worm wheel 63 is fixedly connected with the winding disc 64, a plurality of pulleys 66 in the fixed arm 31 and the winding disc 64 are in winding transmission through the pull ropes 67, when the winding disc 64 rotates and contracts the pull ropes 67, the other end of each pull rope 67 slides out of the telescopic arm 32 quickly by one time of the winding amount of each pull rope 67, the self-locking arrangement between the worm 62 and the worm wheel 63 facilitates keeping the telescopic arm 32 at the fixed position unchanged after sliding, the height of the pipeline is conveniently adjusted, the seabed is compensated, the plurality of sections of pipelines are kept at right angles, the pipeline connection bending angle is reduced, and the resistance when the pipelines convey objects is reduced.

When the invention is used, when the main body 1 is required to be fixed on a proper seabed, the required fixed position is cleaned at first, the bottom end of the main body 1 is convenient to attach to the seabed, the first motor 41 in the opening and closing mechanism 4 is started, the third gear 26 is driven to rotate by the first motor 41, the first rotating shaft 24 is fixedly connected with the second gear 25 and the third gear 26, the third gear 26 rotates and simultaneously drives the second gear 25 to rotate, the plurality of first gears 22 and the second gear 25 are synchronously driven by meshed chains 23, the plurality of first gears 22 are conveniently driven to synchronously rotate in the same direction, the fixed threaded bolts 21 are connected with the first gears 22 in a sliding way and are connected with the main body 1 in a threaded way, the first gears 22 are driven to synchronously rotate in the rotating way, the fixed threaded bolts 21 are moved to the outer side of the bottom end of the main body 1 in the rotating way, so that the function of inserting into the seabed is realized, the plurality of fixed threaded bolts 21 are synchronously inserted into the seabed, the fixing function of the main body 1 is conveniently and rapidly realized, the operation of the fixed parts is avoided singly and the fixing efficiency is improved; the sliding plate 51 is fixedly connected with the main body 1 through the first limiting groove 52 and the second limiting groove 53, the sliding plate 51 is enabled to move more stably in a moving procedure through the arrangement of the first limiting groove 52 and the second limiting groove 53, the sliding plate 51 is prevented from being separated from the main body 1 in the moving procedure, a plurality of reinforcing ribs 54 for improving the strength of a connecting structure are arranged between the fixed arm 31 and the sliding plate 51, the firm strength between the fixed arm 31 and the sliding plate 51 is further greatly improved, the clamping blocks 33 for clamping a pipeline are connected between the telescopic arm 32 and the fixed arm 31, the arc-shaped clamping blocks 33 are designed to facilitate the fixing of the pipeline, when the pipeline is required to be fixed by adjusting the distance between the two sliding plates 51, the first motor 41 is started firstly, the first motor 41 drives the fourth gear 42 at the top end and the first bevel gear 44 to rotate, when the fixing mechanism 2 needs to be driven to run, the switching rod 43 is operated to slide the fourth gear 42 to a position for meshing the third gear 26, when a pipeline needs to be fixed, the switching rod 43 pushes the fourth gear 42 to slide to the top end, so that the first conical tooth 44 is in contact with and meshed with the second conical tooth 45, the second conical tooth 45 is fixedly connected with the second rotating shaft 46, the second rotating shaft 46 is in threaded connection with the two sliding plates 51, the internal threads of the two sliding plates 51 are opposite, the two sliding plates 51 are conveniently driven to synchronously move at the same time, the two clamping blocks 33 are conveniently mutually closed to clamp the pipeline, the power transmission direction is conveniently switched through the arrangement of the switching rod 43, the power is conveniently provided for fixing the main body 1 or installing the pipeline, and the arrangement of redundant power components in the main body 1 is reduced; when the seabed is low in topography, in order to keep the multistage pipeline at the same straight line position, then synchronous start the inside second motor 61 of fixed arm 31, worm 62 on top is driven to worm 62 meshing turbine 63 rotates, fixed connection between turbine 63 and the winding dish 64, a plurality of pulleys 66 in the fixed arm 31 and winding dish 64 are through stay cord 67 winding transmission, when winding dish 64 rotates shrink stay cord 67, the other end of stay cord 67 slides out flexible arm 32 outside fast with the volume of winding that is one time stay cord 67, the auto-lock setting between worm 62 and turbine 63 is convenient to keep fixed position unchanged after sliding flexible arm 32, and then conveniently adjust the lifting pipeline height, play the compensation effect to the seabed topography, keep multistage pipeline at right angle, reduce pipeline connection bending angle, drag when reducing the pipeline transportation object.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The marine engineering submarine pipeline lifting device is characterized by comprising a main body (1), a fixing mechanism (2), a clamping mechanism (3), an opening and closing mechanism (4), a limiting mechanism (5) and a lifting mechanism (6), wherein the fixing mechanism (2) used for fixing the main body (1) is arranged in the main body (1), the clamping mechanism (3) used for clamping and fixing a pipeline is arranged at the fixed end of the main body (1), the limiting mechanism (5) used for limiting the clamping mechanism (3) to slide on the main body (1) is arranged at the fixed end of the main body (1), the opening and closing mechanism (4) used for controlling and adjusting the distance between the two clamping mechanisms (3) is arranged in the main body (1), and the lifting mechanism (6) used for adjusting the height of the clamping mechanism (3) is arranged in the clamping mechanism (3).

The fixing mechanism (2) comprises a fixing threaded bolt (21), a first gear (22), a chain (23), a first rotating shaft (24), a second gear (25) and a third gear (26), wherein the four first gears (22) are rotationally connected in the main body (1), the fixing threaded bolt (21) is slidingly connected in the first gears (22), the bottom end of the fixing threaded bolt (21) extends to the bottom end of the main body (1), the fixing threaded bolt (21) is in threaded connection with the main body (1), the first rotating shaft (24) is rotationally connected in the middle of the main body (1), the second gears (25) and the third gears (26) are fixedly connected in the outer side of the first rotating shaft (24), and the chain (23) is connected between the third gears (26) and the plurality of first gears (22) in a meshed mode.

The limiting mechanism (5) comprises a sliding plate (51), a first limiting groove (52), a second limiting groove (53) and reinforcing ribs (54), wherein the second limiting groove (53) with a convex cross section is formed in the top end of the main body (1), one first limiting groove (52) is respectively formed in two sides of the main body (1), the first limiting groove (52) and the second limiting groove (53) are connected with the two sliding plate (51) in a sliding mode in the same way, and a plurality of triangular reinforcing ribs (54) are fixedly connected in the middle of the top end of the sliding plate (51);

the clamping mechanism (3) comprises a fixed arm (31), a telescopic arm (32), clamping blocks (33) and raised strips (34), wherein the top end of a sliding plate (51) is fixedly connected with the fixed arm (31), the fixed arm (31) and a plurality of reinforcing ribs (54) are fixedly connected, the top end of the fixed arm (31) is provided with the telescopic arm (32), the bottom end of the telescopic arm (32) is slidably connected to the inside of the fixed arm (31), the top end of the telescopic arm (32) is rotationally connected with the clamping blocks (33), one of the clamping blocks (33) is fixedly connected with the raised strips (34), the other clamping block (33) is fixedly connected with the raised strips (34), and the clamping blocks (33) are semicircular;

the opening and closing mechanism (4) comprises a first motor (41), a fourth gear (42), a switching rod (43), first bevel gears (44), second bevel gears (45) and a second rotating shaft (46), wherein the first motor (41) is installed in the main body (1), the fourth gear (42) is slidably connected to the top end of the first motor (41), the first bevel gears (44) are fixedly connected to the top end of the fourth gear (42), the second bevel gears (45) are arranged on the top ends of the first bevel gears (44), the second rotating shaft (46) is arranged in the second limiting grooves (53), the second rotating shaft (46) is fixedly connected to the middle of the second bevel gears (45), one side of the fourth gear (42) is abutted to the switching rod (43), and the switching rod (43) is installed in the main body (1).

2. A marine engineering submarine pipeline lifting device according to claim 1, wherein: lifting mechanism (6) are including second motor (61), worm (62), worm wheel (63), winding dish (64), the internally mounted of fixed arm (31) has second motor (61), the top fixedly connected with of second motor (61) worm (62), one side of worm (62) is equipped with worm wheel (63), worm wheel (63) rotate connect in the inside of fixed arm (31), just worm (62) with meshing between worm wheel (63) is connected, one side fixedly connected with of worm wheel (63) winding dish (64).

3. A marine engineering submarine pipeline lifting device according to claim 2, wherein: the lifting mechanism (6) further comprises a fixing frame (65), pulleys (66) and a pull rope (67), the U-shaped fixing frame (65) is fixedly connected to the inside of the fixing arm (31), the two pulleys (66) are fixedly connected to the top end and the bottom end of the fixing frame (65) respectively, the pull rope (67) is wound between the winding disc (64) and the pulleys (66), and one end of the pull rope (67) is fixedly connected to the inner wall of the bottom end of the telescopic arm (32).