CN116838854B - Shallow sea pipeline floating construction device and method - Google Patents

Abstract

The application relates to the technical field of offshore pipeline construction, in particular to a shallow offshore pipeline floating support construction device and method, comprising a plurality of buoys, a fixing belt for fixing pipelines and a connecting rope for connecting the buoys; one side of the pontoon is provided with the tightening mechanism that is used for tightening up the fixed band, and the opposite side of pontoon is provided with the coupling mechanism that is used for connecting the fixed band, fixedly on the pontoon be provided with the adapter sleeve, fixedly on the connecting rope be provided with the connection ball, when the connection ball card is in the adapter sleeve, coupling mechanism is fixed the fixed band, when the connection ball breaks away from in the adapter sleeve, coupling mechanism separates the fixed band. The application solves the problem that the existing pontoon is inconvenient to detach, thereby achieving the effect of conveniently and rapidly removing the pontoon on the pipeline.

Description

Shallow sea pipeline floating construction device and method

Technical Field

The application relates to the technical field of offshore pipeline construction, in particular to a shallow offshore pipeline floating construction device and method.

Background

The floating and towing method is a mature process which is often adopted for laying and installing water pipelines (especially offshore pipelines), and the construction process is adopted in more than ten engineering cases at home and abroad in the last 20 years, so that the related installation tasks are successfully and excellently completed.

The marine pipeline floating method is characterized in that rails are paved at offshore positions, pipelines are connected together on the rails, a buoy is tied on the pipelines after the rails are connected, so that the marine buoyancy is provided for the movement of the pipelines at sea, a pipeline towing rope is put into water after the offshore operation is completed, the pipelines are towed in place, the buoy is released by the diver to sink slowly and evenly, and finally, the pipelines of all sections are in butt joint communication.

Because the pipeline is longer, the pontoon quantity on the pipeline is numerous, releases the pontoon by diver one by one, and work efficiency is low, and intensity of labour is big.

Disclosure of Invention

In order to facilitate and rapidly remove a pontoon on a pipeline, the application provides a shallow sea pipeline floating construction device and a shallow sea pipeline floating construction method.

In a first aspect, the application provides a shallow sea pipeline floating construction device, which adopts the following technical scheme:

a shallow sea pipeline floating construction device comprises a plurality of buoys, a fixing belt for fixing the pipeline and a connecting rope for connecting the buoys; one side of the pontoon is provided with the tightening mechanism that is used for tightening up the fixed band, and the opposite side of pontoon is provided with the coupling mechanism that is used for connecting the fixed band, fixedly on the pontoon be provided with the adapter sleeve, fixedly on the connecting rope be provided with the connection ball, when the connection ball card is in the adapter sleeve, coupling mechanism is fixed the fixed band, when the connection ball breaks away from in the adapter sleeve, coupling mechanism separates the fixed band.

Through adopting above-mentioned technical scheme, place the connecting ball in the adapter sleeve, coupling mechanism fixes the one end of fixed band on the flotation pontoon, and tightening mechanism tightens up the other end of fixed band for the flotation pontoon is fixed on the pipeline. When the pontoon is disassembled by a worker, the connecting rope is pulled, so that a plurality of connecting balls are pulled out from the connecting sleeve, one end of the fixing belt is separated from the connecting machine, and the pontoon is quickly disassembled.

Optionally, the tightening mechanism comprises a positioning strip fixedly arranged on the fixing belt, a tightening frame fixedly arranged on the pontoon, ratchets rotatably arranged on two sides of the tightening frame, pawls rotatably arranged on two sides of the tightening frame, a tightening shaft fixedly arranged between the two ratchets, a spring piece for pushing the pawls to be meshed with the ratchets, and a rotating assembly for driving the tightening shaft to rotate unidirectionally; the tightening shaft is provided with a through hole for the positioning strip to pass through, the positioning strip is rotationally provided with a limiting block, and the tightening shaft is provided with a limiting groove for accommodating the limiting block.

Through adopting above-mentioned technical scheme, can drive through rotating the rotating assembly and tighten up the axle rotation to twine the winding with the fixed band and tighten up epaxially, realized tightening up the fixed band, promoted the steadiness of flotation pontoon on the pipeline. And through rotating the stopper, with the stopper card in the spacing groove, can make the fixed band can not follow and tighten up epaxial droing, promoted the fixed band and tighten up the steadiness between the axle, more conveniently carry out the rolling of fixed band.

Optionally, the rotating assembly comprises a handle rotatably arranged on the tightening frame, a push plate slidably arranged on the handle and a clamping spring for pushing the push plate to be clamped on the ratchet wheel; the rotation axes of the handle and the ratchet wheel are coincident.

Through adopting above-mentioned technical scheme, because the push pedal card is in the tooth's socket of ratchet for rotate the handle and can drive the ratchet and rotate together, the ratchet rotates and can drive and tighten up the axle rotation, thereby realizes rolling up the dead band on the tight axle.

Optionally, an anti-falling rope is fixedly arranged on the handle, and a hook is fixedly arranged on the tightening frame.

Through adopting above-mentioned technical scheme, tighten up the fixed band after accomplishing, hang anticreep rope on the couple, can make the handle can not take place to rotate, guaranteed stability.

Optionally, the connecting mechanism comprises a plug-in part fixedly arranged on the fixing belt, a socket part fixedly arranged on the connecting sleeve, a clamping assembly for fixing the plug-in part and an ejecting assembly for separating from the plug-in part; when the connecting ball is clamped in the connecting sleeve, the clamping assembly fixes the plug-in part in the socket part, and when the connecting ball is separated from the connecting sleeve, the ejecting assembly releases the plug-in part from the socket part.

By adopting the technical scheme, when the connecting ball is clamped in the connecting sleeve, the inserting part is inserted into the socket part, so that the clamping assembly can fix the inserting part. When the connecting ball is pulled out of the connecting sleeve, the ejecting assembly ejects the inserting part from the socket part, so that the fixing belt is detached.

Optionally, the clamping assembly comprises a connecting block arranged on the socket part in a sliding way, a displacement spring for controlling the connecting block to move towards a direction far away from the socket part, a clamping block arranged on the connecting block in a sliding way and a reset spring for pushing the clamping block to extend out of the connecting block; one side of the clamping block is an inclined plane, the inserting part is provided with a clamping groove, when the connecting ball is clamped in the connecting sleeve, the clamping block is clamped in the clamping groove, and when the connecting ball is separated from the connecting sleeve, the clamping block is pulled out of the clamping groove.

Through adopting above-mentioned technical scheme, when the connection ball card is in the adapter sleeve, the connecting block can be pushed into in the socket joint portion, will insert the grafting portion in this moment and can make the fixture block card in the draw-in groove to realized the fixed to the grafting portion. When the connecting ball is taken out of the connecting sleeve, the connecting block can drive the clamping block to move in the direction away from the socket joint part under the action of the shifting spring, so that the clamping block is pulled out of the clamping groove, and the separation of the socket joint part is realized.

Optionally, the ejecting assembly comprises an ejector rod arranged on the socket part in a sliding way and an ejecting spring sleeved on the ejector rod; one end of the ejecting spring is fixed with the socket part, the other end of the ejecting spring is fixed with the ejector rod, and the ejector rod is propped against the plug part.

By adopting the technical scheme, when the connecting ball is taken out from the connecting sleeve, the ejector rod can push the plug-in part under the action of the ejection spring, so that the plug-in part is pushed out from the socket-and-spigot part.

Optionally, a ball is disposed on a side of the fixture block facing away from the inclined plane.

Through adopting above-mentioned technical scheme, the friction of the contact surface between fixture block and the draw-in groove can be reduced in the setting of ball for the fixture block is taken out from the draw-in groove more easily.

Optionally, the both ends of connecting rope are fixed and are provided with the anticreep piece, the size of anticreep piece is greater than the adapter sleeve.

Through adopting above-mentioned technical scheme, the anticreep piece can prevent that connecting rope from coming off from the adapter sleeve completely for the flotation pontoon can not be scattered after detaching from the pipeline, can be connected together by connecting rope, makes things convenient for follow-up to retrieve in unison the flotation pontoon.

In a second aspect, the application provides a shallow sea pipeline floating construction method, which adopts the following technical scheme:

a shallow sea pipeline floating construction method comprises the following operation steps:

prefabricating a traction track on a field, and excavating a pipe storage ditch at a water inlet position at the tail end of the track;

welding the pipeline, performing nondestructive testing and node corrosion prevention;

step three, putting the connecting ball into the connecting sleeve, winding the fixing belt on the pipeline, connecting one end of the fixing belt by using the connecting mechanism, connecting the other end of the fixing belt by using the tightening mechanism, and tightening and fixing the fixing belt on the pipeline;

step four, dragging the pipeline into a pipe storage ditch, and dragging the pipeline into a sea to a preset position by using a tugboat;

step five, a worker pulls the connecting ball out of the connecting sleeve through pulling the connecting rope, and the fixing belt is separated from the pipeline under the action of the connecting mechanism;

and step six, butt-jointing all pipelines together at sea.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the connecting ball is placed in the connecting sleeve, one end of the fixing belt is fixed on the pontoon by the connecting mechanism, and the other end of the fixing belt is tightened by the tightening mechanism, so that the pontoon is fixed on the pipeline. When the pontoon is disassembled by a worker, the connecting rope is pulled, so that a plurality of connecting balls are pulled out from the connecting sleeve, one end of the fixing belt is separated from the connecting machine, and the pontoon is quickly disassembled.

2. The anti-drop block can prevent the connecting rope from completely falling off from the connecting sleeve, so that the pontoon cannot be scattered after being detached from the pipeline, and can be connected together by the connecting rope, thereby being convenient for subsequent unified recovery of the pontoon.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present application.

Fig. 2 is an enlarged partial schematic view of the portion a in fig. 1.

FIG. 3 is a side view of a tightening mechanism according to an embodiment of the present application.

Fig. 4 is a side cross-sectional view of the overall structure of an embodiment of the present application.

Fig. 5 is a partially enlarged schematic view of the portion B in fig. 4.

Fig. 6 is an enlarged partial schematic view of the portion C in fig. 4.

Fig. 7 is a front cross-sectional view of the overall structure of an embodiment of the present application.

Fig. 8 is a partially enlarged schematic view of the portion D in fig. 7.

Reference numerals: 1. a pontoon; 11. connecting sleeves; 2. a fixing belt; 3. a connecting rope; 31. a connecting ball; 32. an anti-falling block; 41. a positioning strip; 411. a limiting block; 42. a tightening frame; 421. a hook; 43. a ratchet wheel; 44. a pawl; 45. a tightening shaft; 451. a limit groove; 46. a spring piece; 47. a handle; 471. anti-rope-falling; 48. a push plate; 49. a clamping spring; 51. a plug-in part; 511. a clamping groove; 52. a socket; 521. a push rod; 522. a spring is ejected; 53. a connecting block; 531. a clamping block; 5311. a ball; 532. a return spring; 54. and a displacement spring.

Detailed Description

The technical scheme in the application is further described in detail below with reference to fig. 1-8.

The embodiment of the application discloses a shallow sea pipeline floating construction device. A shallow sea pipeline floating construction device comprises a pontoon 1, a fixing belt 2 and a connecting rope 3. Wherein the number of the buoys 1 is set according to the length of the pipeline in actual use, the fixing straps 2 are used to fix the buoys 1 on the pipeline, thereby providing buoyancy for the pipeline when the pipeline is in sea, and the connecting lines 3 are used to connect the buoys 1 together.

One side of the pontoon 1 is provided with a tightening mechanism for tightening the fixing belt 2, so that the firmness of the fixing belt 2 on the pipeline is improved, the pontoon 1 is not easy to fall off from the pipeline, and the stability in use is ensured. The other side of the pontoon 1 is provided with a connecting mechanism for connecting the fixing strap 2, so that the other end of the fixing strap 2 is connected to the pontoon 1, so that the fixing strap 2 can be wound on the pipeline. A plurality of connecting balls 31 are fixedly arranged on the connecting rope 3, and the connecting balls 31 are uniformly distributed on the connecting rope 3. The pontoon 1 is fixedly provided with a connecting sleeve 11, and the connecting rope 3 passes through the connecting sleeve 11. The rubber pad is fixedly arranged on the inner side wall of the connecting sleeve 11, so that the connecting ball 31 is more stable in the connecting sleeve 11, and meanwhile, when the connecting ball 31 is separated from the connecting sleeve 11, the rubber pad can deform, so that the situation that the connecting ball 31 cannot be separated is avoided.

When the connecting ball 31 is clamped in the connecting sleeve 11, the connecting mechanism can fix the fixing band 2 on the pipeline, and when the connecting ball 31 is separated from the connecting sleeve 11, the connecting mechanism separates the fixing band 2 from the pipeline, so that the release of the pontoon 1 from the pipeline is realized. When in actual use, a worker pulls the connecting rope 3, and can pull out a plurality of connecting balls 31 from the connecting sleeve 11, so that the plurality of pontoons 1 are relieved, the working efficiency is greatly improved, and the use is convenient. The anti-drop blocks 32 are fixedly arranged at the two ends of the connecting rope 3, the size of the anti-drop blocks 32 is larger than that of the connecting sleeve 11, so that the connecting rope 3 cannot be completely pulled out of the connecting sleeve 11, the connecting rope 3 can connect the buoys 1 together, after the buoys 1 are detached, the buoys 1 cannot be scattered and float on the sea, and the recovery of the buoys 1 is facilitated. Meanwhile, in actual use, the length of the connecting rope 3 between two adjacent connecting balls 31 is longer than the distance between two adjacent connecting sleeves 11, so that the connecting rope 3 is in a loose state, a certain movable space can be provided, and the connecting balls 31 are not easy to pull out of the connecting sleeves 11 when the pipeline is disturbed by the outside.

Specifically, the tightening mechanism includes a positioning bar 41 fixedly arranged on the fixing belt 2, a tightening frame 42 fixedly arranged on one side of the pontoon 1, ratchet wheels 43 rotatably arranged on two sides of the tightening frame 42, pawls 44 rotatably arranged on two sides of the tightening frame 42, a tightening shaft 45 fixedly arranged between the two ratchet wheels 43, a spring piece 46 for pushing the pawls 44 and the ratchet wheels 43 to be kept in a meshed state, and a rotating assembly for driving the tightening shaft 45 to rotate unidirectionally. One end of the spring piece 46 is fixed to the tightening frame 42, and the other end of the spring piece 46 abuts against the pawl 44. The tightening shaft 45 is provided with a through hole for the positioning strip 41 to pass through, the positioning strip 41 is rotatably provided with a limiting block 411, when the limiting block 411 and the positioning strip 41 are coplanar, the limiting block 411 is rotated after the positioning strip 41 passes through the through hole, so that the limiting block 411 is perpendicular to the positioning strip 41, the limiting block 411 can be abutted against the tightening shaft 45, the positioning strip 41 is prevented from being pulled away from the tightening shaft 45, and the fixing belt 2 can be wound on the tightening shaft 45 when the tightening shaft 45 rotates. Meanwhile, in order to better wind the fixing strap 2 on the tightening shaft 45 when the tightening shaft 45 rotates, a limit groove 451 matched with the limit block 411 is formed on the tightening shaft 45. After the stopper 411 is rotated, the stopper 411 can be caught in the stopper groove 451, thereby being used to accommodate the stopper 411 such that the stopper 411 does not protrude from the surface of the tightening shaft 45.

More specifically, the rotating assembly includes a handle 47 rotatably provided on the takeup housing 42, a push plate 48 slidably provided on the handle 47, and a click spring 49 for urging the push plate 48 to click on the ratchet wheel 43. Wherein, the rotation center of the handle 47 coincides with the rotation center of the ratchet wheel 43, one end of the clamping spring 49 is fixedly arranged on the handle 47, and the other end of the clamping spring 49 is fixedly arranged on the push plate 48. When the handle 47 rotates along the direction capable of winding the fixing band 2, the push plate 48 is clamped on the ratchet wheel 43 and can drive the ratchet wheel 43 to synchronously rotate, so that the rotation of the winding shaft 45 is realized, and the fixing band 2 is wound on the tightening shaft 45. When the handle 47 rotates in the direction of unreeling the fixing strap 2, the push plate 48 cannot be clamped on the ratchet 43, and cannot drive the ratchet 43 to rotate.

Further, in order to fix the handle 47 and prevent the handle 47 from rotating at will, an anti-falling rope 471 is fixedly arranged on the handle 47, a hook 421 is fixedly arranged on the tightening frame 42, and after the fixing strap 2 is tightened, when the handle 47 is not needed to be used, the anti-falling rope 471 is hung on the hook 421 to fix the handle 47, so that the handle 47 cannot rotate.

Specifically, the connection mechanism includes a socket part 51 fixed on the fixing belt 2, a socket part 52 fixedly embedded on the connecting sleeve 11, a clamping assembly for fixing the socket part 51 on the socket part 52, and an ejecting assembly for ejecting the socket part 51 from the socket part 52. The clamping assembly fixes the plug-in portion 51 when the connection ball 31 is clamped in the connection sleeve 11, and the ejecting assembly ejects the plug-in portion 51 when the connection ball 31 is separated from the connection sleeve 11.

More specifically, the snap-in assembly includes a connection block 53 slidably disposed on the socket 52, a displacement spring 54 for controlling the movement of the connection block 53 in a direction away from the socket 52, a latch 531 slidably disposed on the connection block 53, and a return spring 532 for pushing the latch 531 to protrude from the connection block 53. One end of the displacement spring 54 is fixed to the socket part 52, the other end of the displacement spring 54 is fixed to the connecting block 53, and when the displacement spring 54 is in an original length state, the connecting block 53 extends into the inner side of the connecting sleeve 11. The connecting block 53 is fixedly provided with a protruding block, the clamping block 531 is provided with grooves with two closed ends, the protruding block is slidably arranged in the grooves, and the moving range of the clamping block 531 on the connecting block 53 is limited by the matching of the protruding block and the grooves, so that the clamping block 531 cannot be completely separated from the connecting block 53. One end of the return spring 532 is fixed to the connection block 53, and the other end of the return spring 532 is fixed to the fixture 531. The plugging portion 51 is provided with a clamping groove 511, and one side of the clamping block 531 is provided with an inclined surface structure. When the connecting ball 31 is clamped in the connecting sleeve 11, the connecting block 53 is pressed into the socket part 52, at this time, the plug part 51 is inserted into the socket part 52, the plug part 51 can abut against the inclined surface of the clamping block 531, the clamping block 531 is extruded into the connecting block 53 until the plug part 51 is completely inserted into the socket part 52, and the clamping block 531 stretches out and is clamped in the clamping groove 511 under the action of the reset spring 532, so that the fixing of the plug part 51 is realized. When the connecting ball 31 is pulled out of the connecting sleeve 11, the connecting block 53 moves away from the socket part 52 under the action of the displacement spring 54 and drives the clamping block 531 to move together, so that the clamping block 531 is pulled out of the clamping groove 511, and the restriction of the socket part 51 is released.

Further, in order to reduce friction of the contact surface of the clamping block 531 and the clamping groove 511, the clamping block 531 is more conveniently drawn out of the clamping groove 511, and a plurality of balls 5311 are arranged on one side, deviating from the inclined plane, of the clamping block 531, so that when the connecting ball 31 is separated from the connecting sleeve 11, the clamping block 531 can be separated from the clamping groove 511.

More specifically, the ejector assembly includes an ejector rod 521 slidably disposed on the socket 52 and an ejector spring 522 sleeved on the ejector rod 521. One end of the ejecting spring 522 is fixed to the socket 52, and the other end of the ejecting spring 522 is fixed to the ejector 521, so that the ejector 521 is abutted against the socket 51 when the socket 51 is inserted into the socket 52. When the connection ball 31 is pulled out of the connection sleeve 11, the plug-in portion 51 is released from the restriction, so that the ejector rod 521 ejects the plug-in portion 51 out of the socket portion 52 under the action of the ejection spring 522.

The embodiment of the application also discloses a shallow sea pipeline floating construction method, which comprises the following operation steps:

step one, carrying out foundation treatment on soil layers at sea-entering positions, paving a traction track on a field, and excavating a water diversion and storage pipe groove at a water entering position at the tail end of the track. Meanwhile, in order to ensure the safety and the position accuracy when the pipeline floats and drags to be in place, positioning piles are required to be designed and applied on the pipeline.

And secondly, welding, inspecting, corrosion preventing and grease injecting the pipe sections.

And thirdly, arranging two connecting ropes 3 on a section of pipeline. Each buoy 1 on the first connecting line 3 is first installed on the pipeline. Specifically, the connecting balls 31 on the connecting rope 3 are all clamped into the connecting sleeve 11, then the inserting part 51 is inserted into the socket part 52, and one end of the fixing belt 2 is fixed. The other end of the fixing belt 2 bypasses the pipeline, the positioning strip 41 passes through the tightening shaft 45, the limiting block 411 is rotated, and the limiting block 411 is clamped in the limiting groove 451. The handle 47 is turned, the tightening shaft 45 is turned, the fixing band 2 is wound up, the fixing band 2 is fastened to the pipeline, and then the anti-falling string 471 is hung on the hanger 421. And taking the second connecting rope 3, and installing the pontoons 1 on the second connecting rope 3 on the pipeline, so that the pontoons 1 on the second connecting rope 3 and the pontoons 1 on the first connecting rope 3 are arranged at intervals. Thereafter, the buoy 1 is continued to be arranged on the following pipeline again in accordance with the above-described operation.

And fourthly, dragging the pipeline into a pipeline storage ditch, towing the pipeline into the sea by a tug, anchoring the pipeline near the positioning pile by a first tug, and assisting in adjusting the pipeline position to be approximately parallel to the positioning pile by a tail tug and an auxiliary tug, wherein the pipeline is in a stable state when the pipeline is close to a preset position.

Step five, the diver drains from the middle part, two people separate the pontoon 1 to two sides, pull the connecting ball 31 out of the connecting sleeve 11 by pulling the connecting rope 3, and the fixing belt 2 is separated from the pipeline under the action of the connecting mechanism. When the pontoon 1 is released, the pontoon 1 is released in a one-by-one manner, namely, the pontoon 1 on the first connecting rope 3 is firstly released on a section of pipeline, so that the pipeline slowly and uniformly sinks into the seabed, and after being in place stably, the pontoon 1 on the second connecting rope 3 is sequentially released.

And step six, butt-jointing all pipelines together at sea.

The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (5)

1. The utility model provides a shallow sea pipeline floats and holds in palm construction equipment which characterized in that: comprises a plurality of buoys (1), a fixing belt (2) for fixing pipelines and a connecting rope (3) for connecting the buoys (1); one side of the pontoon (1) is provided with a tightening mechanism for tightening the fixing belt (2), the other side of the pontoon (1) is provided with a connecting mechanism for connecting the fixing belt (2), the pontoon (1) is fixedly provided with a connecting sleeve (11), the connecting rope (3) is fixedly provided with a connecting ball (31), when the connecting ball (31) is clamped in the connecting sleeve (11), the connecting mechanism is used for fixing the fixing belt (2), when the connecting ball (31) is separated from the connecting sleeve (11), the connecting mechanism is used for separating the fixing belt (2), the tightening mechanism comprises a positioning strip (41) fixedly arranged on the fixing belt (2), a tightening frame (42) fixedly arranged on the pontoon (1), ratchet wheels (43) rotatably arranged on two sides of the tightening frame (42), a pawl (44) rotatably arranged on two sides of the tightening frame (42), a tightening shaft (45) fixedly arranged between the two ratchet wheels (43), a spring piece (46) for pushing the pawl (44) to be meshed with the ratchet wheels (43) and a spring piece (45) for driving the tightening shaft to rotate unidirectionally; the tightening shaft (45) is provided with a through hole for the positioning strip (41) to pass through, the positioning strip (41) is rotationally provided with a limiting block (411), the tightening shaft (45) is provided with a limiting groove (451) for accommodating the limiting block (411), and the rotating assembly comprises a handle (47) rotationally arranged on the tightening frame (42), a push plate (48) slidingly arranged on the handle (47) and a clamping spring (49) for pushing the push plate (48) to be clamped on the ratchet wheel (43); the rotation axes of the handle (47) and the ratchet wheel (43) are overlapped, and the connecting mechanism comprises a plug-in part (51) fixedly arranged on the fixing belt (2), a socket part (52) fixedly arranged on the connecting sleeve (11), a clamping assembly for fixing the plug-in part (51) and an ejecting assembly for separating from the plug-in part (51); when the connecting ball (31) is clamped in the connecting sleeve (11), the clamping assembly fixes the plug-in part (51) in the socket part (52), and when the connecting ball (31) is separated from the connecting sleeve (11), the ejecting assembly releases the plug-in part (51) from the socket part (52), and the clamping assembly comprises a connecting block (53) arranged on the socket part (52) in a sliding manner, a shifting spring (54) used for controlling the connecting block (53) to move in a direction away from the socket part (52), a clamping block (531) arranged on the connecting block (53) in a sliding manner and a reset spring (532) used for pushing the clamping block (531) to extend out of the connecting block (53); one side of the clamping block (531) is an inclined plane, the inserting part (51) is provided with a clamping groove (511), when the connecting ball (31) is clamped in the connecting sleeve (11), the clamping block (531) is clamped in the clamping groove (511), when the connecting ball (31) is separated from the connecting sleeve (11), the clamping block (531) is pulled out of the clamping groove (511), and the ejecting assembly comprises an ejector rod (521) arranged on the socket part (52) in a sliding manner and an ejecting spring (522) sleeved on the ejector rod (521); one end of the ejection spring (522) is fixed with the socket part (52) and the other end is fixed with the ejector rod (521), and the ejector rod (521) is abutted against the plug part (51).

2. The shallow sea pipeline floating construction device according to claim 1, wherein: an anti-falling rope (471) is fixedly arranged on the handle (47), and a hook (421) is fixedly arranged on the tightening frame (42).

3. The shallow sea pipeline floating construction device according to claim 1, wherein: and a ball (5311) is arranged on one side, away from the inclined plane, of the clamping block (531).

4. The shallow sea pipeline floating construction device according to claim 1, wherein: the two ends of the connecting rope (3) are fixedly provided with anti-falling blocks (32), and the size of each anti-falling block (32) is larger than that of the connecting sleeve (11).

5. A shallow sea pipeline floating construction method, characterized in that the shallow sea pipeline floating construction device according to any one of claims 1-4 is used, comprising the following operation steps:

prefabricating a dragging track at a sea-entering point, and excavating a pipe storage ditch at a water entering position at the tail end of the track;

welding the pipeline, performing nondestructive testing and node corrosion prevention;

step three, putting the connecting ball (31) into the connecting sleeve (11), winding the fixing belt (2) on the pipeline, connecting one end of the fixing belt (2) by using a connecting mechanism, connecting the other end of the fixing belt (2) by using a tightening mechanism, and tightening and fixing the fixing belt (2) on the pipeline;

step four, dragging the pipeline into a pipe storage ditch, and dragging the pipeline into a sea to a preset position by using a tugboat;

step five, a worker pulls the connecting ball (31) out of the connecting sleeve (11) by pulling the connecting rope (3), and the fixing belt (2) is separated from the pipeline under the action of the connecting mechanism;

and step six, butt-jointing all pipelines together at sea.