阅读说明：本技术 一种管道施工用管道安放装置 (Pipeline laying device for pipeline construction ) 是由 周洪忠 张怀玉 汪伟 张新峰 王昌 杨露露 李林 李宁 余新亮 于 2020-11-21 设计创作，主要内容包括：本申请涉及一种管道施工用管道安放装置,包括两个间隔设置的吊装主框架、倾斜向下设在吊装主框架顶部一侧的上料板、与上料板上远离吊装主框架的一端连接的置物板、设在置物板上用于推动管道的推管组件、设在吊装主框架上的吊管绳、对称设在吊装主框架两侧的绕绳筒、对称设吊装主框架两侧用于驱动绕绳筒转动的驱动组件和安装在吊装主框架上的控制箱；所述控制箱分别与推管组件和驱动组件电性连接。本申请属于管道施工的技术领域,其能使管道安放更方便快捷,省时省力,具有使提高管道安装质量的效果。(The application relates to a pipeline placing device for pipeline construction, which comprises two lifting main frames arranged at intervals, a feeding plate obliquely and downwards arranged on one side of the top of each lifting main frame, a placing plate connected with one end, far away from each lifting main frame, of the feeding plate, a pipe pushing assembly arranged on the placing plate and used for pushing a pipeline, a pipe lifting rope arranged on each lifting main frame, rope winding drums symmetrically arranged on two sides of each lifting main frame, driving assemblies symmetrically arranged on two sides of each lifting main frame and used for driving the rope winding drums to rotate, and a control box arranged on each lifting main frame; the control box is respectively and electrically connected with the push pipe assembly and the driving assembly. This application belongs to pipeline construction's technical field, and it enables the pipeline and lays more convenient and fast, and labour saving and time saving has the effect that makes improvement piping erection quality.)

1. The utility model provides a device is laid to pipeline for pipeline construction which characterized in that: the pipeline hoisting device comprises two hoisting main frames (11) arranged at intervals, an upper material plate (21) obliquely and downwards arranged on one side of the top of the hoisting main frame (11), a storage plate (22) connected with one end, far away from the hoisting main frame (11), of the upper material plate (21), a push pipe assembly (31) arranged on the storage plate (22) and used for pushing a pipeline, a pipe hoisting rope (41) arranged on the hoisting main frame (11), rope winding drums (51) symmetrically arranged on two sides of the hoisting main frame (11), driving assemblies (61) symmetrically arranged on two sides of the hoisting main frame (11) and used for driving the rope winding drums (51) to rotate, and a control box (71) arranged on the hoisting main frame (11);

the control box (71) is respectively electrically connected with the push pipe assembly (31) and the driving assembly (61).

2. The pipe-setting device for pipeline construction as claimed in claim 1, wherein: the bottom cover of hoist and mount main frame (11) is equipped with landing leg (111), wear to be equipped with gag lever post (112) on landing leg (111).

3. The pipe-setting device for pipeline construction as claimed in claim 1, wherein: the top of the upper material plate (21) is rotatably connected with the top of the main hoisting frame (11) through a pin shaft (113), and one end of the pipe hoisting rope (41) is wound on the rope winding drum (51) after bypassing the pin shaft (113).

4. The pipe-setting device for pipeline construction as claimed in claim 3, wherein: and a pulley (114) through which the lifting pipe rope (41) passes is arranged on the pin shaft (113).

5. The pipe-setting device for pipeline construction as claimed in claim 1, wherein: a groove (211) is formed in the upper surface of the upper material plate (21) along the moving direction of the pipeline, a limiting baffle (212) is rotatably connected to the side surface, located in the groove (211), of the upper material plate (21), and an elastic reset piece (213) is arranged on the surface of the limiting baffle (212); two ends of the elastic reset piece (213) are respectively connected with the limiting baffle (212) and the bottom surface of the upper material plate (21) in the groove (211).

6. The pipe-setting device for pipeline construction as claimed in claim 1, wherein: the push pipe assembly (31) comprises an electro-hydraulic push rod (311) with the tail end rotatably connected with the object placing plate (22) and a push pipe plate (312) connected with the telescopic end of the electro-hydraulic push rod (311).

7. The pipe-setting device for pipeline construction as claimed in claim 6, wherein: the ejector plate (312) is an arc-shaped plate.

8. The pipe-setting device for pipeline construction as claimed in claim 1, wherein: the number of the pipe hanging ropes (41) is multiple, and a widened bearing belt (411) is further arranged at the position where the pipe hanging ropes are in contact with the pipeline.

9. The pipe-setting device for pipeline construction as claimed in claim 1, wherein: the driving assembly (61) comprises driving motors (611) symmetrically arranged at two sides of the hoisting main frame (11) and speed reducers (612) connected with output shafts of the driving motors (611);

the power output shaft of the speed reducer (612) is connected with the rotating shaft of the rope winding drum (51).

10. The pipe-setting device for pipeline construction as claimed in claim 1, wherein: the control box (71) comprises a box body (711) which is arranged on the side surface of the hoisting main frame (11) and is close to the top, a first forward-reverse switch (712) which is arranged in the box body (711) and is used for controlling the pipe pushing assembly (31) to work, and a second forward-reverse switch (713) which is arranged in the box body (711) and is used for controlling the driving assembly (61) to work.

Technical Field

The application relates to the technical field of pipeline construction, in particular to a pipeline placing device for pipeline construction.

Background

At present, the pipeline transportation is more and more big in the aspect of energy transportation such as natural gas, oil and water resource, and the general steel pipe of pipeline of resource transport when laying the pipeline, at first need dig the groove of establishing the buried pipeline along the pipe laying direction subaerial, and reuse loop wheel machine or fork truck or even manual work place many pipelines in the subaerial head-to-tail connection of groove both sides becomes a long pipeline, then hang the pipeline simultaneously and slowly put in the groove with many cranes simultaneously and couple together with preceding pipe connection, accomplish the process of laying of pipeline. Of course, when the construction conditions are limited, the radial hoisting of the pipeline by the crane is still used.

Aiming at the related technologies, the inventor thinks that the defects of time and labor waste and poor installation quality of the inconvenient installation process of pipeline placement caused by poor working condition exist.

Disclosure of Invention

In order to make the pipeline lay more convenient and fast, labour saving and time saving and then make improvement pipeline installation quality, this application provides a device is laid to pipeline for pipeline construction.

The application provides a suspension bush adopts following technical scheme:

a pipeline placing device for pipeline construction comprises two lifting main frames arranged at intervals, a feeding plate obliquely and downwards arranged on one side of the top of each lifting main frame, a placing plate connected with one end, far away from the lifting main frames, of the feeding plate, a pipe pushing assembly arranged on the placing plate and used for pushing a pipeline, a pipe lifting rope arranged on the lifting main frames, rope winding drums symmetrically arranged on two sides of each lifting main frame, driving assemblies symmetrically arranged on two sides of each lifting main frame and used for driving the rope winding drums to rotate, and a control box arranged on the lifting main frames;

the control box is respectively and electrically connected with the push pipe assembly and the driving assembly.

Through adopting above-mentioned technical scheme, the control box enables ejector sleeve subassembly and drive assembly operation, then the ejector sleeve subassembly promotes the pipeline along putting thing board and last flitch rebound, on the pipeline downwards dropped the lifting pipe rope from the top of hoist and mount main frame. The drum is then rotated by the drive assembly to slowly release the boom cable, allowing the pipe to be gradually lowered to a predetermined location for connection to a previously laid pipe. This application easy operation can improve and lead to the pipeline to take place to rock and the installation quality of pipeline is poor etc. defect at the operating mode condition poor if unable hoist or because of soil matter is soft and make hoist work inconvenient, this application has labour saving and time saving and then makes the advantage that improves the pipeline installation quality.

Optionally, the bottom cover of hoist and mount main frame is equipped with the landing leg, wear to be equipped with the gag lever post on the landing leg.

Through adopting above-mentioned technical scheme, the landing leg has been established to the bottom cover of hoist and mount main frame, can adjust the main frame through the gag lever post and insert the degree of depth in the landing leg, and then adjust the height of main frame, makes this application can be applicable to the operating mode of more different pipeline burial depths.

Optionally, the feeding plate is rotatably connected with the top of the hoisting main frame through a pin shaft, and one end of the lifting pipe rope winds down on the rope winding drum after winding around the pin shaft.

By adopting the technical scheme, when the feeding plate rotates around the axis of the pin shaft, the inclination angle of the feeding plate is adjustable, then the heightening of the feeding plate is carried out according to the working condition, and the thrust required by pushing the pipeline to the position, close to the top of the hoisting main frame, of the feeding plate is smaller.

Optionally, the pin shaft is provided with a pulley through which the lifting pipe rope passes.

Through adopting above-mentioned technical scheme, the setting up of pulley makes the sliding friction between dropper rope and the hoist and mount main frame become rolling friction, makes the dropper rope more durable.

Optionally, a groove is formed in the upper surface of the upper material plate along the moving direction of the pipeline, a limiting baffle is rotatably connected to the side surface of the upper material plate, which is located in the groove, and an elastic reset piece is arranged on the surface of the limiting baffle; and two ends of the elastic resetting piece are respectively connected with the limiting baffle and the bottom surface of the upper material plate, which is positioned in the groove.

Through adopting above-mentioned technical scheme, after the pipeline runs into limit baffle along last flitch in-process that upwards moves, push down limit baffle, make limit baffle get back to in the recess, elasticity resets and takes place elastic deformation, is compressed, and after the pipeline passed through, limit baffle lost the effort of pipeline, and under the effect of elasticity reset key, upwards popped out, can play the effect that prevents the pipeline gliding.

Optionally, the push pipe assembly comprises an electro-hydraulic push rod and a push pipe plate, the tail end of the electro-hydraulic push rod is rotatably connected with the object placing plate, and the push pipe plate is connected with the telescopic end of the electro-hydraulic push rod.

By adopting the technical scheme, after the electro-hydraulic push rod is started, the push tube plate connected with the telescopic end of the electro-hydraulic push rod moves along with the electro-hydraulic push rod, so that the pipeline moves upwards along the feeding plate.

Optionally, the ejector plate is an arc-shaped plate.

Through adopting above-mentioned technical scheme, push away the tube sheet and make the area of contact between tube sheet and the pipeline bigger for this setting of arc, can reduce to push away and take place relative slip between tube sheet and the pipeline and lead to the unstable possibility of pipeline laying process.

Optionally, the number of the pipe lifting ropes is multiple, and a widened bearing belt is further arranged at a position where the pipe lifting ropes are in contact with the pipeline.

Through adopting above-mentioned technical scheme, the dropper rope quantity is many and has still set up on the dropper rope and widened the bearing area, and the area of contact between increase dropper rope and the pipeline makes the pipeline receive ascending holding power subsection more even at the in-process of being transferred to the mounted position, and then makes the pipeline process of laying more stable, lays the quality height.

Optionally, the driving assembly comprises driving motors symmetrically installed on two sides of the hoisting main frame and speed reducers connected with output shafts of the driving motors;

and a power output shaft of the speed reducer is connected with a rotating shaft of the rope winding drum.

Through adopting above-mentioned technical scheme, after driving motor starts, the reduction gear also rotated thereupon, and then drives the rope winding section of thick bamboo and rotates, carries out the receive and release of dropper rope and laying of pipeline.

Optionally, the control box includes a box body installed on the side surface of the main hoisting frame and close to the top, a first forward-backward switch installed in the box body and used for controlling the push pipe assembly to work, and a second forward-backward switch installed in the box body and used for controlling the driving assembly to work.

Through adopting above-mentioned technical scheme, first in the control box is in the same direction as contrary switch and can make two ejector sleeve subassemblies simultaneous workings simultaneously, with the top of pipeline synchronous promotion hoist and mount main frame, then the second is in the same direction as contrary switch and makes drive assembly work, carries out transferring of pipeline, and installation quality is higher when making this application installation pipeline.

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

1. the control box enables ejector sleeve subassembly and drive assembly operation in this application, then the ejector sleeve subassembly promotes the pipeline along putting thing board and last flitch rebound, on the pipeline falls the lifting pipe rope downwards from the top of hoist and mount main frame. Then under the action of the driving assembly, the rope winding drum rotates and slowly releases the lifting pipe rope, so that the pipeline is gradually lowered to a preset position to be connected with the previously laid pipeline, the operation is simple in the process of laying the pipeline, the defects that the pipeline shakes in the hoisting process and the installation quality of the pipeline is poor due to the fact that a crane cannot be used under poor working conditions or the crane is inconvenient to work due to soft soil quality can be overcome, and the like, and the method has the advantages of saving time and labor and further improving the installation quality of the pipeline;

2. when the feeding plate rotates around the axis of the pin shaft, the inclination angle of the feeding plate is adjustable, then the lifting of the feeding plate is carried out according to the working condition, so that the thrust required when the pipeline is pushed to the position, close to the top of the hoisting main frame, of the feeding plate is smaller;

3. the lifting pipe rope quantity is many and has still set up on the lifting pipe rope and widened the bearing area, and the area of contact between increase lifting pipe rope and the pipeline makes the pipeline receive ascending holding power subsection more even at the in-process of being transferred to the mounted position, and then makes the pipeline process of laying more stable, and the laying quality is higher.

Drawings

Fig. 1 is a schematic view of the overall structure of the pipe installation device according to the embodiment of the present application.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic view for showing the structure of the pipe sling in the embodiment of the present application.

Fig. 4 is a circuit diagram for illustrating the control principle of the first forward/reverse switch and the second forward/reverse switch in the embodiment of the present application.

Description of reference numerals: 11. hoisting the main frame; 111. a support leg; 112. a limiting rod; 113. a pin shaft; 114. a pulley; 21. feeding plates; 211. a groove; 212. a limit baffle; 213. an elastic reset member; 22. a storage plate; 31. a push tube assembly; 311. an electro-hydraulic push rod; 312. pushing the tube plate; 41. a tubing hanger; 411. widening the bearing belt; 51. a rope drum; 61. a drive assembly; 611. a drive motor; 612. a speed reducer; 71. a control box; 711. a box body; 712. a first forward-reverse switch; 713. a second forward/reverse switch.

Detailed Description

The present application is described in further detail below with reference to figures 1-4. It can be understood that, in the pipeline placing process in the related art, the pipeline hoisted by the crane shakes during the pipeline butt joint, so that much time is required for the pipeline connection due to the alignment, and the problem of poor pipeline placing quality is easily caused.

The embodiment of the application discloses device is laid to pipeline for pipeline construction. Referring to fig. 1, a pipe installation device for pipeline construction includes a main hoisting frame 11, a feeding plate 21, a placing plate 22, a pipe pushing assembly 31, a pipe hanging rope 41, a rope winding drum 51, a driving assembly 61, and a control box 71.

Wherein, two hoist and mount main frames 11 are put at interval and are dug and locate subaerial and be used for laying in the slot of pipeline. Go up flitch 21 slope and set up downwards on the side at hoist and mount main frame 11 top, put the thing board 22 and go up the flitch 21 and go away from the one end of hoist and mount main frame 11 and link together. The pushing pipe assembly 31 is disposed on the object placing plate 22, and the pushing pipe assembly 31 is used for pushing the pipeline to move upwards along the upper material plate 21. The lifting pipe rope 41 is arranged on the lifting main frame 11, the rope winding drums 51 are symmetrically arranged on two sides of the lifting main frame 11, and the driving assemblies 61 are arranged on two sides of the lifting main frame 11 and are used for driving the rope winding drums 51 to rotate and releasing and winding the lifting pipe rope 41. The control box 71 is installed on the hoisting main frame 11 and can control the starting and stopping of the push pipe assembly 31 and the driving assembly 61 respectively.

Firstly, two main hoisting frames 11 are placed into grooves dug by laying pipelines on the ground, then the pipelines are placed on the object placing plate 22, the control box 71 is used for controlling the pipe pushing assembly 31 to push the pipelines upwards along the upper material plate 21, the pipelines fall onto the pipe hoisting ropes 41 from the tops of the main hoisting frames 11, then the rope winding drums 51 are driven to rotate by the driving assembly 61, the pipe hoisting ropes 41 are released and extended, and the pipelines are gradually lowered to pipeline placing positions to stop lowering and complete subsequent pipeline placing work.

Referring to fig. 1, the main hoisting frame 11 is a rectangular frame formed by welding vertical bars and horizontal bars, the top of the main hoisting frame 11 is a rectangle with one side open, and the open side is used for allowing a pipeline to pass through when falling onto a pipe lifting rope 41. The bottom of the hoisting main frame 11 is also provided with a supporting leg 111, the supporting leg 111 is a rectangular square tube with a closed bottom end, the upper edge of the supporting leg 111 vertically penetrates through a limiting rod 112, the limiting rod 112 can be a pin or a screw, and when the hoisting main frame 11 needs to be adjusted in height, one end of the limiting rod 112 can penetrate through the supporting leg 111 and the hoisting main frame 11. In addition, in order to facilitate installation of the feeding plate 21, a pin 113 is inserted into the top of the main hoisting frame 11, one end of the pipe hoisting rope 41 is wound around the rope winding drum 51 after bypassing the pin 113, and the moving direction of the pipe hoisting rope 41 is changed after the pipe hoisting rope passes through the pin 113 each time.

Referring to fig. 2, further, in order to reduce the friction between the pipe lifting rope 41 and the pin 113, pulleys 114 are further disposed on the pin 113, the pulleys 114 and the pin 113 may be connected together through rolling ball bearings, and the number of the pulleys 114 is the same as that of the pipe lifting rope 41. A portion of the tubing string 41 is looped around the pulley 114. it will be appreciated that as the tubing string 41 moves, the pulley 114 is carried by the tubing string 41 to rotate, reducing friction and making the tubing string 41 more durable.

Referring to fig. 1 and 2, the feeding plate 21 is an elongated bar having a rectangular cross section, and for better understanding of the embodiment of the present application, a surface of the feeding plate 21 on which the pipes move is referred to as an upper surface. One end of the feeding plate 21 inclines downwards, and the other end of the feeding plate 21 is rotatably connected with the top of the main hoisting frame 11 through a pin 113.

Further, go up flitch 21's upper surface and go up the moving direction that has set up recess 211 along the pipeline, go up flitch 21 and go up to rotate on the side that lies in recess 211 and be connected with limit baffle 212, in the embodiment of this application, the position that is close to the tip on two parallel sides of limit baffle 212 has set up the round bar, and the round bar inserts and lies in the round hole on the recess 211 medial surface on flitch 21, can make limit baffle 212 use the axis of round bar to take place to rotate as the axis of rotation. In addition, the lower surface of the limit baffle 212 is also fixedly connected with an elastic reset piece 213, the elastic reset piece 213 can be a spring, and two ends of the spring are respectively connected with the lower surface of the limit baffle 212 and the bottom surface in the groove 211 of the upper material plate 21.

In the process that the pipeline upwards moves along the feeding plate 21, the gravity of the pipeline enables the limit baffle 212 to rotate, the elastic reset piece 213 is compressed, after the pipeline completely passes through the first limit baffle 212, the limit baffle 212 loses acting force, the elastic reset piece 213 restores deformation, one side of the limit baffle 212, which is far away from a rotating central shaft, upwards extends out of the upper surface of the feeding plate 21, and when the pipeline is unstable due to the thrust, the limit baffle 212 can play a role in buffering.

Referring to fig. 1 and 3, the object placing plate 22 is composed of a transverse plate hinged to one side of the upper material plate 21 far away from the main hoisting frame 11 and a vertical plate fixedly connected to the other end of the transverse plate, the transverse plate is used for placing pipelines, and the vertical plate is used for installing the push pipe assembly 31.

Referring to fig. 3, the push pipe assembly 31 includes an electro-hydraulic push rod 311 and a push pipe plate 312, the tail end of the electro-hydraulic push rod 311 is connected to the vertical plate pin of the storage plate 22, the telescopic end of the electro-hydraulic push rod 311 is connected to the push pipe plate 312 in a pin connection manner, and according to actual construction conditions, it is not difficult to understand that the angle of the push pipe plate 312 rotating around the pin is smaller than 90 degrees.

Further, in order to increase the contact area between the tube pushing plate 312 and the outer side surface of the pipeline, the tube pushing plate 312 is an arc-shaped plate, and the arc-shaped inner side surface of the arc-shaped plate is matched with the outer side surface of the pipeline to be abutted against each other. Causing the pipe to move upwards along the upper plate 21 under the thrust.

Referring to fig. 2 and 3, the pipe hanger rope 41 may be a steel wire rope, but the pipe hanger rope 41 may be a plastic coated steel wire rope in order to make the pipe hanger rope 41 more durable. One end of the drop tube rope 41 is fixedly connected to the rope reel 51 after passing around the pulley 114, and is released or retracted in accordance with the rotation of the rope reel 51.

In addition, in order to increase the contact area between the pipeline and the lifting pipe rope 41, the whole pipeline placing process is more stable. The number of the pipe hanging ropes 41 is multiple, and the positions of the pipe hanging ropes 41, which are contacted with the pipeline, are adhered with widened bearing belts 411, wherein the widened bearing belts 411 can be cloth strips or rubber strips. In the embodiment of the present application, the number of the pipe hanger 41 is two, and accordingly, the pulley 114 is also two or has two grooves for the pipe hanger 41 to pass through.

Referring to fig. 1 and 2, the rope drum 51 is composed of a rotating shaft installed on the side surface of the hoisting main frame 11 and a drum sleeved on the rotating shaft, the rotating shaft of the rope drum 51 is connected with the power output shaft of the driving assembly through a coupling, and the hanging pipe rope 41 is wound and bound on the rope drum 51.

Referring to fig. 1 and 3, the driving unit 61 includes a driving motor 611 and a reducer 612 to stably drive the rope drum 51 to rotate, thereby performing a winding or releasing operation of the dropper rope 41.

The driving motor 611 is symmetrically installed on the side of the main hoisting frame 11, and of course, the driving motor 611 is fixedly connected to the main hoisting frame 11 by bolts for more firm connection. The power input shaft of the speed reducer 612 is fixedly connected with the power output shaft of the driving motor 611, and the power output shaft of the speed reducer 612 is connected with the rope winding drum 51 through a coupler, so that the power is transmitted to the rope winding drum 51 more stably, and the pipeline is placed at a preset placing position at a slow and stable speed.

Referring to fig. 1, the control box 71 is electrically connected to the electro-hydraulic push rod 311 of the push pipe assembly 31 and the driving motor 611 of the driving assembly 61 through wires, so as to realize the functions of controlling the push pipe assembly 31 and the driving assembly 61 respectively.

Referring to fig. 3, the number of the control box 71 is one, and the control box 71 includes a box 711, a first forward/reverse switch 712, and a second forward/reverse switch 713. The box 711 is a hollow rectangular box, and is fixedly mounted on the top of the side of the main hoisting frame 11 by bolts, so that the lowering depth of the pipeline can be conveniently observed when the control box 71 is operated. The first forward/reverse switch 712 is fixedly installed in the box 711 by bolts, and a knob portion of the first forward/reverse switch is exposed outside the box 711, and the knob portion has three states, namely positive, negative and zero, and corresponds to the extension, contraction and stop of the electro-hydraulic push rod 311. The second forward/reverse switch 713 is installed in the housing 711 by a bolt, and a knob portion of the second forward/reverse switch 713 is exposed to the outside of the housing 711 and has three states of positive, negative, and zero, which correspond to the three states of forward rotation, reverse rotation, and stop of the driving motor 611, respectively.

It will be appreciated that in order to enable the pipeline to be lowered to a predetermined position when it is pushed onto the feeding plate 21, two spaced electro-hydraulic push rods 311 and two spaced drive motors 611 need to be actuated simultaneously, so that a plurality of electro-hydraulic push rods 311 are wired in the same closed circuit with the same first switch 712, and a plurality of drive motors 611 are wired in the same closed circuit with the same second switch 713.

In addition, the control principle of the first forward/reverse switch 712 and the second control switch is the same, and here, for the convenience of understanding the control principle, referring to fig. 4, the symbol of the second forward/reverse switch 713 in the circuit is S, the symbol of the circuit corresponding to the driving motor 611 is M, and the two driving motors 611 are connected in a closed circuit to complete the operation of controlling the plurality of driving motors 611 using the same forward/reverse switch S.

The implementation principle of the pipeline placing device for pipeline construction in the embodiment of the application is as follows:

firstly, the pipeline is placed on the transverse plate of the object placing plate 22, then the first forward and backward switch 712 on the control box 71 is utilized to extend the electric hydraulic push rod 311, the pipeline moves upwards along the upper material plate 21 to the top of the hoisting main frame 11 under the pushing action of the pipe pushing plate 312, then falls onto the pipe hanging rope 41, then the second forward and backward switch 713 is utilized to control the driving motor 611 to rotate, so that the speed reducer 612 and the rope winding drum 51 rotate, then the pipe hanging rope 41 is released, the pipeline is lowered to a preset placing height, and after the pipeline is laid, the pipe hanging rope 41 is wound onto the rope winding drum 51.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.