Pipe hoisting device and method

Abstract

The application discloses a pipeline hoisting device and method, the device comprises a combined hoisting beam, a supporting plate and a plurality of ropes; the method comprises assembling the pipeline hoisting device, arranging the rotating shaft of the supporting plate of the pipeline hoisting device downward, connecting the lifting tool of the hoisting equipment and the two upper lifting lugs of the upper hoisting beam of the pipeline hoisting device through the ropes symmetrically, hoisting the pipeline hoisting device to the upper side of the pipeline to be hoisted through the hoisting equipment, making the length direction of the upper hoisting beam same as the axial direction of the pipeline, releasing the ropes between the two blocking sheets on the rotating shaft of the supporting plate on one side, winding the supporting plate through the pipeline and attaching the supporting plate to the inner wall of the upper chord surface of the pipeline, reconnecting the released ropes between the two blocking sheets on the rotating shaft of the supporting plate and straightening each rope, and starting the hoisting equipment to hoist the pipeline supported by the pipeline hoisting device to the predetermined position. The application has high hoisting efficiency and good stability.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to a pipe hoisting device and method. Background Technology

[0002] Large-diameter concrete or metal pipes, such as drainage and heating pipes, need to be secured with ropes and slings before being hoisted by lifting equipment during handling, transportation, and installation. This process involves a lot of repetitive work, low hoisting efficiency, difficulty in determining the lifting and stress points of the pipes, and the pipes are prone to tilting and instability during hoisting, resulting in poor safety. After the pipes are hoisted into place, the ropes or slings are often trapped under the pipes and difficult to remove, which is extremely inconvenient. Summary of the Invention

[0003] The purpose of this invention is to provide a pipeline hoisting device and method to solve the problems of low pipeline hoisting efficiency and poor hoisting safety.

[0004] To solve the above-mentioned technical problems, the present invention provides a pipe hoisting device, comprising:

[0005] A combined lifting beam includes one upper lifting beam and two lower lifting beams. The two lower lifting beams are vertically and symmetrically arranged at both ends of the upper lifting beam. The upper lifting beam is connected to each of the lower lifting beams through connecting rods. The upper surface of both ends of the upper lifting beam along its length is provided with upper lifting lugs, and a pair of lower lifting lugs are provided on each side of the lower surface of both ends of the upper lifting beam along its length. Each lower lifting beam is provided with several through holes, and all the through holes on each lower lifting beam are symmetrically distributed with the connecting rod to which they are connected as the center.

[0006] The support plate is composed of several base plates, several round tubes and several pivots hinged together, and the support plate can be rolled up and attached to the inner wall of the pipe.

[0007] Several ropes are symmetrically connected to the pivots at both ends of the support plate. The other ends of all the ropes on each side of the support plate pass through a through hole in the lower suspension beam on that side and are symmetrically connected to the two lower lifting lugs on the side where the upper suspension beam is located.

[0008] Furthermore, in the pipe hoisting device provided by the present invention, the connecting rod of the combined lifting beam is a screw rod, which is threadedly connected between the upper and lower lifting beams perpendicularly to them.

[0009] Furthermore, in the pipe hoisting device provided by the present invention, the connecting rod of the combined hoisting beam is a vertical rod, which is welded perpendicularly to the upper and lower hoisting beams between the upper and lower hoisting beams.

[0010] Furthermore, in the pipe hoisting device provided by the present invention, the connecting rod of the combined hoisting beam is a hollow tubular body or a solid columnar body.

[0011] Further, the pipeline hoisting device provided by the present application, the upper hoisting beam of the combined hoisting beam is a hollow or solid strip body.

[0012] Further, the pipeline hoisting device provided by the present application, the lower hoisting beam of the combined hoisting beam is a solid plate body.

[0013] Further, the pipeline hoisting device provided by the present application, the supporting plate is composed of a plurality of base plates, a plurality of round tubes and a plurality of rotating shafts.

[0014] Each of the base plates is rectangular, and all the base plates are arranged in a linear manner along the width direction of each base plate, and the adjacent base plates are arranged in contact without gaps.

[0015] Each base plate of the supporting plate is provided with the round tube on both sides of the same surface along the length direction, and the axial center of the round tube is aligned with the edge line of the side; the round tube on the outside of the base plates on both sides is a whole, the round tube on the inside of the base plates on both sides is a half, and the round tubes on all the base plates between the base plates on both sides are diagonally distributed halves, the halves of the round tubes of the adjacent two base plates are aligned on the same axis line, and each base plate and the round tube thereon form a plate strip.

[0016] A rotating shaft is inserted into the whole round tube and the two halves of the round tubes on the same axis line, so as to hinge the adjacent two base plates through the round tubes and the rotating shafts therein, and the length of the rotating shaft is greater than the length of the base plate and extends out of both ends of the base plate and the round tube; each rotating shaft comprises a shaft rod and two blocking pieces arranged at intervals at both ends of the shaft rod.

[0017] The supporting plate is deformed by being curled along the side of the round tube to be attached to the inner wall of the pipeline through the round tube on each base plate and the rotating shaft therein.

[0018] Further, the pipeline hoisting device provided by the present application, the length of the half round tube is less than 1 / 2 of the length of the whole round tube.

[0019] Further, the pipeline hoisting device provided by the present application, the length of the whole round tube is the same as the length of the base plate.

[0020] In order to solve the above technical problems, the present application also provides a pipeline hoisting method, comprising:

[0021] According to the diameter size and weight of the pipeline to be hoisted, the number of ropes is matched, the pipeline hoisting device is assembled through the combined hoisting beam, the supporting plate and a plurality of ropes, and the rotating shaft of the supporting plate of the pipeline hoisting device is arranged downward.

[0022] The lifting device is connected with the two upper lifting ears of the upper lifting beam of the pipeline lifting device through ropes in a symmetrical manner;

[0023] The pipeline lifting device is lifted to the upper side of the pipeline to be lifted by the lifting device, and the length direction of the upper lifting beam is the same as the axial direction of the pipeline;

[0024] The ropes between the two blocking pieces on the rotating shaft of the supporting plate on one side are disconnected, the supporting plate is wound and attached to the inner wall of the upper chord surface of the pipeline, the disconnected ropes are reconnected between the two blocking pieces on the rotating shaft of the supporting plate, and each rope is straightened;

[0025] The lifting device is started to lift the pipeline supported by the pipeline lifting device to the predetermined position.

[0026] Compared with the prior art, the beneficial effects of the present application are as follows:

[0027] The pipeline lifting device and method provided by the present application, the supporting plate is used to support the pipeline, the combined lifting beam is connected with the supporting plate through ropes, the weight of the supporting plate and the pipeline is transmitted to the combined lifting beam, the lifting device is connected with the pipeline lifting device through the lifting tool of the combined lifting beam, the weight of the pipeline lifting device and the pipeline is transmitted to the lifting device through the lifting tool, and then the lifting device is started to lift the pipeline supported by the pipeline lifting device to the predetermined position.

[0028] The pipeline lifting device and method provided by the present application, the ropes between the combined lifting beam and the supporting plate are connected in a symmetrical and dispersed manner, and the ropes between the lifting tool and the combined lifting beam are connected in a symmetrical manner, which can ensure balanced lifting of the pipeline and safety and stability of the lifting process.

[0029] The pipeline lifting device and method provided by the present application, the supporting plate is wound and attached to the inner wall of the pipeline, and the contact area of the supporting plate with the pipeline is larger than that of the traditional rope binding, which can ensure that the supporting plate and the pipeline are displaced relative to each other during lifting, and the lifting safety is ensured.

[0030] The pipeline lifting device and method provided by the present application, the pipeline is lifted by the pipeline lifting device, the disconnection and connection of the ropes on the pipeline lifting device are facilitated, the lifting efficiency of the pipeline and the subsequent pipeline is improved, the traditional rope binding method needs to be bound for each component, the repeated work is large, and the lifting efficiency is low, the supporting plate is facilitated to be inserted into or taken out of the pipeline by disconnecting the ropes on one side, the defect that the pipeline bound by the traditional rope is pressed under the pipeline and is not easy to take out is overcome, the supporting plate bears the pipeline by reconnecting the ropes on the disconnected side, the pipeline lifting is quickly operated, and the lifting efficiency is improved.

[0031] The pipeline hoisting device and method provided by the application can avoid the defect that the ropes or lifting belts are pressed under the pipeline and are not easy to extract after the pipeline is hoisted into place by the traditional binding hoisting method, the ropes on one side of the supporting plate are released, the supporting plate and the ropes thereon are conveniently extracted, and the ropes pressed under the pipeline do not hit the workers, thereby ensuring the hoisting safety of the workers. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a front view structural schematic diagram of the pipeline hoisting device hoisting the pipeline;

[0033] Figure 2 is a side view structural schematic diagram of the pipeline hoisting device hoisting the pipeline;

[0034] Figure 3 is a three-dimensional structural schematic diagram of the combined lifting beam;

[0035] Figure 4 is a three-dimensional structural schematic diagram of the supporting plate;

[0036] Figure 5 is Figure 4 is a sectional view of A-A in FIG. 4;

[0037] Figure 6 is a three-dimensional structural schematic diagram of the board strip on one side;

[0038] Figure 7 is a three-dimensional structural schematic diagram of the middle board strip;

[0039] Figure 8 is a three-dimensional structural schematic diagram of the rotating shaft;

[0040] Figure 9 is a structural schematic diagram of the rope and rotating shaft connection node;

[0041] The drawings shown in the drawings:

[0042] 100, pipeline;

[0043] 200, pipeline hoisting device;

[0044] 210, supporting plate, 211, base plate, 212, round pipe, 213, rotating shaft, 2131, shaft rod, 2132, baffle;

[0045] 220, combined lifting beam, 221, upper lifting beam, 2211, upper lifting lug, 2212, lower lifting lug, 222, connecting rod, 223, lower lifting beam, 2231, through hole;

[0046] 230, rope;

[0047] 240, lifting appliance. DETAILED DESCRIPTION

[0048] The application will be described in greater detail with reference to the accompanying drawings, in which:

[0049] Please refer to Figures 1 to 9 The embodiment of the present application provides a pipeline hoisting device 200, which comprises a combined hoisting beam 220, a supporting plate 210 and a rope 230, wherein:

[0050] The combined hoisting beam 220 comprises one upper hoisting beam 221 and two lower hoisting beams 223, the two lower hoisting beams 223 are vertically and symmetrically arranged at two ends of the upper hoisting beam 221, the upper hoisting beam 221 is connected with each lower hoisting beam 223 through a connecting rod 222, the upper surface of the two ends of the upper hoisting beam 221 in the length direction is provided with an upper lifting lug 2211, the two sides of the lower surface of the two ends of the upper hoisting beam 221 in the length direction are each provided with a pair of lower lifting lugs 2212, a plurality of through holes 2231 are arranged on each lower hoisting beam 223, and all the through holes 2231 on each lower hoisting beam 223 are symmetrically distributed with the connecting rod 222 connected therewith as the center. The through holes 2231 can be round holes, square holes or the like, and can penetrate the lower hoisting beam 223. The upper and lower lifting lugs can be lifting rings or ear plates with through holes.

[0051] The supporting plate 210 is composed of a plurality of base plates 211, a plurality of circular tubes 212 and a plurality of rotating shafts 213, and the supporting plate 210 can be curled and attached to the inner wall of the pipeline.

[0052] The rope 230 is a plurality of ropes, which are symmetrically connected to the rotating shafts 213 at two ends of the supporting plate 210, and the other ends of all the ropes 230 on each side of the supporting plate 210 are symmetrically connected to the two lower lifting lugs 2212 on the side of the upper hoisting beam 221 through one through hole 2231 of the lower hoisting beam 223 on the side. Figure 2The eight ropes 230 between the supporting plate 210 and the combined hoisting beam 220 on each side are connected to one end of the eight rotating shafts 213, and each rope 230 passes through a hole 2231 in the lower hoisting beam 223 on the corresponding side and is connected to a lower hoisting lug 2212, and two lower hoisting lugs are connected to four ropes 230. That is, the force of the ropes 230 is dispersed through the pair of lower hoisting lugs 2212 on each side of the upper hoisting beam 221 and the holes 2231 in the lower hoisting beam 223, so that the lifting points on the supporting plate 120 are more balanced, and the balanced lifting of the pipeline 100 is ensured. It should be noted that the two ends of each rotating shaft 213 do not need to be connected to the ropes 230, and the number of ropes can be matched according to the diameter and weight of the pipeline 100, and symmetrical connection is sufficient.

[0053] In order to facilitate the connection of the upper and lower hoisting beams, the pipeline hoisting device 200 provided by the embodiment of the present application is provided, and the connecting rod 222 of the combined hoisting beam 220 can be a screw rod, which is perpendicularly screwed between the upper and lower hoisting beams 223.

[0054] In order to realize the vertical connection of the upper and lower hoisting beams, the pipeline hoisting device 200 provided by the embodiment of the present application is provided, and the connecting rod 222 of the combined hoisting beam 220 can be a vertical rod, which is perpendicularly welded between the upper and lower hoisting beams 223. The connecting rod 222 can be a hollow tubular body or a solid columnar body.

[0055] Please refer to Figure 3 The upper hoisting beam 221 of the combined hoisting beam 220 of the pipeline hoisting device 200 provided by the embodiment of the present application is a hollow or solid strip body. The hollow strip body can reduce the weight of the combined hoisting beam 220 under the premise of meeting the strength, and under the premise of the same weight, it also provides the increase of the area of the upper and lower surfaces of the upper hoisting beam 221 to facilitate the symmetrical arrangement of the lower hoisting lugs 2212.

[0056] Please refer to Figure 3 In order to improve the strength of the lower hoisting beam 223 after the through hole 2231 is arranged, the pipeline hoisting device 200 provided by the embodiment of the present application is provided, and the lower hoisting beam 223 of the combined hoisting beam 220 can be a solid plate body.

[0057] Please refer to Figures 4 to 9The pipeline hoisting device 200 provided by the embodiment of the present application, the supporting plate 210 is composed of a plurality of base plates 211 and a plurality of round pipes 212 and a plurality of rotating shafts 213; each base plate 211 is rectangular, all the base plates 211 are arranged in a line along the width direction of each base plate 211, and the adjacent base plates 211 are arranged without gaps; each base plate 211 of the supporting plate 210 is provided with the round pipe 212 on both sides along the length direction of the same surface, and the axial center of the round pipe 212 is aligned with the edge line of the side; the round pipe 212 on the outside of the base plate 211 on both sides is a whole, the round pipe 212 on the inside of the base plate 211 on both sides is a half, and the round pipe 212 on all the base plates 211 between the base plates 211 on both sides is a half distributed in a diagonal line, and the half round pipes 212 of the adjacent two base plates 211 are aligned on the same axis line, and each base plate 211 and the round pipe 212 thereon constitute a plate strip; a rotating shaft 213 is inserted into the whole round pipe 212 and the two half round pipes 212 on the same axis line, so as to hinge the adjacent two base plates 211 through the round pipe 212 and the rotating shaft 213 therein, and the length of the rotating shaft 213 is greater than the length of the base plate 211 and extends out of both ends of the base plate 211 and the round pipe 212; each rotating shaft 213 comprises a shaft 2131 and two blocking pieces 2132 arranged at intervals at both ends of the shaft 2131; the supporting plate 210 is deformed by being curled along the side of the round pipe 212 and is attached to the inner wall of the pipeline through the round pipe 212 on each base plate 211 and the rotating shaft 213 therein. The specification size of each base plate 211 is completely the same, that is, the length, width and height of each base plate 211 are the same, the round pipes 212 on each plate strip are on the same surface of the supporting plate 210, the specification size of each whole round pipe 212 is completely the same, and the specification size of each half round pipe 212 is completely the same, that is, the diameter and length parameters are the same. When the supporting plate 210 is completely unfolded, it is in a flat state and has a rectangular shape. The round pipe 212 and the base plate 211 on each plate strip are made of steel and are welded. The supporting plate 210 with such a structure can improve the structural strength, is not easy to be damaged by repeated curling through the hinge relationship between the rotating shaft 213 and the round pipe 212, prolongs the service life, and can adjust the curling radius according to the different diameter sizes of the pipeline 100, has the advantages of wide application range and strong universality.

[0058] Please refer to Figure 1In order to improve the combination stability of the supporting plate 210, the pipeline hoisting device 200 provided by the embodiment of the present application is characterized in that the length of the half pipe 212 is less than 1 / 2 of the length of the whole pipe 212, wherein "less than" includes the number. The two half pipes 212 are spliced into one pipe 212 on the same axis, thereby improving the welding area of the pipe 212 and the base plate 211, improving the reliable connection and structural strength between the base plate 211 and the pipe 212, splicing the two half pipes 212 into one pipe on the same axis, increasing the contact area of the pipe 212 and the rotating shaft 213, improving the hinged area of the rotating shaft 213 and the pipe 212, improving the reliability of the hinged connection between the rotating shaft 213 and the pipe 212, and improving the overall supporting force of the supporting plate 210. One end of the half pipe 212 is located at the midpoint of the side, and the other end is flush with the end face of the base plate 211. Of course, in order to achieve the purpose of curling of the supporting plate 210, the half pipe 212 can be less than 1 / 2 of the whole pipe 212.

[0059] Further, the pipeline hoisting device 200 provided by the embodiment of the present application is characterized in that the length of the whole pipe 212 is the same as the length of the base plate 211. In order to ensure the reliability of the connection between the plates, the ports of the pipes 212 can be aligned on the edge line of the base plate 211. The shape of the stopper 2132 can be a circular ring or a plurality of arc-shaped pieces discontinuously surrounding the rotating shaft 2131, wherein the stopper 2132 can prevent the rope from detaching from the rotating shaft 2131. The stopper 2132 and the shaft 2131 can be welded or interference-fitted nested connection, both of which can be made of steel. The inner stopper of the two stoppers 2132 is attached to the port of the pipe 212, which can ensure the reliability of the connection between the base plates 211, effectively prevent the shaft 2131 of the rotating shaft 213 from detaching from the pipe 212, avoid the situation that the base plates 211 are not arranged in a linear shape, and avoid the situation that the dislocation between the base plates 211 caused by the rotation of the base plates 211 relative to the rotating shaft 213 through the pipe 212 to adjust the curling angle leads to uneven stress.

[0060] Please refer to Figures 1 to 2 The embodiment of the present application also provides a pipeline hoisting method, comprising:

[0061] Step 301, according to the diameter size and weight of the pipeline 100 to be hoisted, matching the number of ropes 230, assembling the pipeline hoisting device 200 described above by combining the hoisting beam 220, the supporting plate 210 and the plurality of ropes 230, arranging the rotating shaft 213 of the supporting plate 210 of the pipeline hoisting device 200 downward.

[0062] Step 302, the lifting device's lifting tool 240 is symmetrically connected to the two upper lifting lugs 2211 of the upper hoisting beam 221 of the pipeline hoisting device 200 through the rope 230. The lifting tool 240 can be a lifting hook.

[0063] Step 303, hoist the pipeline hoisting device 200 to the upper side of the pipeline to be hoisted by the hoisting equipment, so that the length direction of the upper hoisting beam 221 is the same as the axial direction of the pipeline 100.

[0064] Step 304, release the ropes 230 between the two blocking pieces 2132 on the rotating shaft 213 of the one side supporting plate 210, wrap the supporting plate 210 on the inner wall of the upper chord surface of the pipeline, reconnect the released ropes 230 between the two blocking pieces 2132 on the rotating shaft 213 of the supporting plate 210, and straighten each rope 230. After each rope 230 is tied, it is in a straightened state, avoiding imbalance caused by some ropes 230 not participating in force after lifting.

[0065] Step 305, start the hoisting equipment to hoist the pipeline hoisted by the pipeline hoisting device to the predetermined position.

[0066] The pipeline hoisting device 200 and method provided by the embodiment of the present application, the supporting plate 210 is used to support the pipeline, and the combined hoisting beam 220 and the supporting plate 210 are connected by the ropes 230, so that the weight of the supporting plate 210 and the pipeline is transmitted to the combined hoisting beam 220, the lifting appliance 240 of the combined hoisting beam 220 is connected with the pipeline hoisting device 200, and then the weight of the pipeline hoisting device 200 and the pipeline 100 is transmitted to the hoisting equipment through the lifting appliance 240, so that the hoisting equipment hoists the pipeline 100 supported by the pipeline hoisting device 200 to the predetermined position. The hoisting equipment can be a gantry crane, a truck crane or other hoist.

[0067] The pipeline hoisting device 200 and method provided by the embodiment of the present application, the ropes 230 between the combined hoisting beam 220 and the supporting plate 210 are symmetrically and dispersedly connected, and the ropes 230 between the lifting appliance 240 and the combined hoisting beam 220 are symmetrically connected, which can ensure balanced lifting of the pipeline and safety and stability of the hoisting process. The uneven distribution of hoisting points caused by the traditional binding hoisting method can be avoided, so that the pipeline is not easily inclined and unstable during hoisting.

[0068] The pipeline hoisting device 200 and method provided by the embodiment of the present application, the supporting plate 210 is wrapped and attached to the inner wall of the pipeline, and the contact area of the supporting plate 210 with the pipeline is larger than the contact area of the traditional rope 230, which can ensure that the supporting plate 210 and the pipeline are relatively displaced during hoisting, and the hoisting safety is ensured. The supporting plate 210 is wrapped and attached to the inner wall of the pipeline, which can be applied to hoisting operations of various specifications and sizes of urban drainage pipelines and other pipelines 100.

[0069] The pipeline hoisting device 200 and method provided by the embodiment of the present application hoist the pipeline through the pipeline hoisting device, facilitate the disconnection and connection of the ropes 230 on the pipeline hoisting device, improve the hoisting efficiency of the pipeline and subsequent pipelines, and do not cause the situation that the traditional binding hoisting method needs to bind each component, the repeated work is large, and the hoisting efficiency is low. The ropes 230 on one side are disconnected, the insertion or extraction of the supporting plate 210 in the pipeline is facilitated, the defect that the traditional ropes 230 binding the pipeline are pressed under the pipeline and are not easy to extract is overcome, the ropes 230 on the disconnected side are reconnected, the supporting plate 210 carries the pipeline, the quick operation of hoisting the pipeline is realized, and the hoisting efficiency is improved.

[0070] The pipeline hoisting device 200 and method provided by the embodiment of the present application can avoid the defect that the traditional binding hoisting method is not easy to extract the ropes 230 or the lifting belt under the pipeline after the pipeline is hoisted in place. The ropes 230 on one side of the supporting plate 210 are disconnected, the extraction of the supporting plate 210 and the ropes 230 thereon is facilitated, the situation that the traditional ropes 230 pressed under the pipeline strike the workers is not caused, and the hoisting safety of the workers is ensured.

[0071] The present application is not limited to the above-mentioned specific embodiments. Obviously, the above-described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application. Those skilled in the art can make other levels of modifications and changes to the present application. Thus, if these modifications and changes of the present application belong to the scope of the claims of the present application, the present application also intends to include these modifications and changes.

Claims

1. A pipe hoisting device, characterized in that, include: A combined lifting beam includes one upper lifting beam and two lower lifting beams. The two lower lifting beams are vertically and symmetrically arranged at both ends of the upper lifting beam. The upper lifting beam is connected to each of the lower lifting beams through connecting rods. The upper surface of both ends of the upper lifting beam along its length is provided with upper lifting lugs, and a pair of lower lifting lugs are provided on each side of the lower surface of both ends of the upper lifting beam along its length. Each lower lifting beam is provided with several through holes, and all the through holes on each lower lifting beam are symmetrically distributed with the connecting rod to which they are connected as the center. The support plate is composed of several base plates, several round tubes and several pivots hinged together, and the support plate can be rolled up and attached to the inner wall of the pipe; the support plate is composed of strips composed of several base plates and several round tubes and several pivots hinged together. Each of the substrates is rectangular, and all the substrates are arranged in a straight line along the width direction of each substrate, with no gap between adjacent substrates. Each substrate of the support plate has a circular tube on two sides along its length on the same surface, and the axial center of the circular tube is aligned with the edge line of the side. The circular tube on the outer side of the substrate on both sides is a whole tube, the circular tube on the inner side of the substrate on both sides is half a tube, and the circular tubes on all substrates between the substrates on both sides are diagonally distributed half tubes. The half tubes of two adjacent substrates are aligned on the same axis line, and each substrate and the circular tubes thereon constitute a strip. A rotating shaft is inserted into the entire circular tube and into two half-circular tubes on the same axis to hinge two adjacent substrates through the circular tube and the rotating shaft inside. The length of the rotating shaft is greater than the length of the substrate and extends out from both ends of the substrate and the circular tube. Each rotating shaft includes a shaft and two baffles spaced apart at both ends. The support plate is attached to the inner wall of the pipe by curling and deforming along the side of the circular tube on each of the base plates and the rotating shaft inside it. Several ropes are symmetrically connected to the pivots at both ends of the support plate. The other ends of all the ropes on each side of the support plate pass through a through hole in the lower suspension beam on that side and are symmetrically connected to the two lower lifting lugs on the side where the upper suspension beam is located.

2. The pipeline hoisting device according to claim 1, characterized in that, The connecting rod of the combined lifting beam is a screw rod, which is threaded between the upper and lower lifting beams perpendicular to them.

3. The pipeline hoisting device according to claim 1, characterized in that, The connecting rod of the combined lifting beam is a vertical rod, which is welded perpendicular to the upper and lower lifting beams between the upper and lower lifting beams.

4. The pipeline hoisting device according to claim 1, characterized in that, The connecting rods of the combined lifting beam are hollow tubular bodies or solid columnar bodies.

5. The pipeline hoisting device according to claim 1, characterized in that, The upper suspension beam of the combined suspension beam is a hollow or solid strip.

6. The pipeline hoisting device according to claim 1, characterized in that, The lower suspension beam of the combined suspension beam is a solid plate.

7. The pipeline hoisting device according to claim 1, characterized in that, The length of half of the circular tube is less than 1 / 2 of the length of the whole circular tube.

8. The pipeline hoisting device according to claim 1, characterized in that, The length of the entire circular tube is the same as the length of the substrate.

9. A method for hoisting a pipeline, characterized in that, include: According to the diameter and weight of the pipe to be lifted, the number of ropes is matched, and the pipe lifting device according to any one of claims 1-8 is assembled by combining the lifting beam, the support plate and several ropes, so that the pivot of the support plate of the pipe lifting device is arranged downward. The lifting equipment's lifting tool is symmetrically connected to the two upper lifting lugs of the upper lifting beam of the pipeline lifting device using ropes. The pipe hoisting device is hoisted to a position directly above the pipe to be hoisted using hoisting equipment, so that the length direction of the upper hoisting beam is the same as the axial direction of the pipe. Release the rope between the two baffles on the rotating shaft of the support plate on one side, pass the support plate through the pipe and curl it to fit against the inner wall of the upper chord surface of the pipe, reconnect the released rope between the two baffles on the rotating shaft of the support plate, and straighten each rope. The hoisting equipment is started, and the pipeline supported by the pipeline hoisting device is hoisted to the predetermined position.

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