Pipeline jacking device and method for steel structure net rack

Abstract

The invention relates to the technical field of steel structure net rack jacking construction, in particular to a pipeline jacking device and method for a steel structure net rack, and the jacking device is installed on a shear fork type elevator and comprises a base, an adjusting assembly rotationally arranged in the middle of the base and a lifting assembly installed at the upper end of the adjusting assembly. Two mounting assemblies are arranged on the lifting assembly, one end of each mounting assembly is rotationally connected with the lifting assembly, the other end of each mounting assembly is rotationally connected with the lifting assembly through a supporting assembly, the two mounting assemblies are opposite in rotating direction along the lifting assembly, and fastening units arranged in the mounting assemblies can clamp a pipeline; the lower ends of the connecting assemblies are fixedly connected with the lifting assemblies, and the upper ends of the connecting assemblies are connected with the section steel on the two sides of the grid in a matched mode. The jacking method is applied to the jacking device, the jacking device is matched with a grid to transport pipelines with various pipe diameters or various cross sections, and the stability of the jacking process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure grid lifting construction, and in particular to a pipeline lifting device and method for a steel structure grid. Background Art

[0002] With the rapid development of my country's economy, the construction industry has made remarkable achievements. Domestic large-space structures have achieved extraordinary results. Large-span space structure technology has become an extremely important indicator to measure the level of construction development in a country. In particular, the steel structure grid has become the most commonly used large-space structure form in China. The steel structure grid is widely used in the production workshops and factories of supporting facilities for new energy storage battery boxes. The buildings of the workshops need to be built in a straight line and large space with fewer internal obstacles, which is convenient for the compact layout of the production line and the rapid transportation of semi-finished and finished products. The steel structure grid is gradually adopted due to its better force structure and flexible spatial combination. The common steel structure grid has a conical grid structure. The basic constituent unit of the conical grid structure is an inverted triangular cone or a quadrangular cone. These cones are connected to each other through the upper chord ball and the lower chord ball nodes to form an overall spatial grid structure. The upper chord rods are connected through the upper chord ball nodes to form an upper chord grid structure, and the lower chord rods are connected through the lower chord ball nodes to form a lower chord grid structure. A steel grid structure for hanging decorative materials is set below the lower chord grid structure.

[0003] A large number of production process pipelines need to be installed on the steel structure grid, and the pipelines are located above the steel grid structure above the lower chord or in the conical space; each production pipeline includes multiple butt-connected pipes. The construction of pipelines in the upper and lower chords of the steel structure grid, especially large pipelines, is difficult and risky.

[0004] In the prior art, pipeline construction often uses a scissor-type lift to lift the pipelines one by one into the conical space of the steel structure grid, so as to facilitate the docking and installation of the pipelines. The dimensions of the steel grid structure and / or the lower chord grid structure are fixed after installation, but the specifications and dimensions of the pipelines are different. If the length of the pipeline is greater than the grid size of the steel grid structure and / or the lower chord grid structure, the pipeline is not easy to be lifted directly above the steel grid structure or into the conical space of the steel structure grid. The construction workers are also required to lift the pipeline up with manpower. In addition, the scissor-type lift can only transport one or two pipelines at a time, and the entire scissor-type lift is prone to shake greatly during the lifting process, which poses a safety hazard of rollover and may also threaten the life and property of the operator. Summary of the invention

[0005] The object of the present invention is to provide a pipe jacking device and method for a steel structure grid to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A pipe lifting device and method for a steel structure grid frame, which is installed on a scissor-type lift and drives the pipe to pass through a steel grid structure and / or a lower chord grid structure from bottom to top, comprising a base and an adjusting component rotatably arranged in the middle of the base, and a lifting component installed on the upper end of the adjusting component, wherein the base is detachably connected to the scissor-type lift; the adjusting component comprises a rotating plate, a first moving member and a second moving member, the rotating plate is rotatably connected to the base, the upper surface of the rotating plate is movably connected to the first moving member, the first moving member moves along the rotating plate through a screw nut mechanism, and the first moving member is movably connected to the second moving member inside Two moving parts, the second moving part moves along the first moving part through a gear rack mechanism; two groups of mounting components are arranged on the lifting component, one end of the mounting component is rotatably connected to the lifting component, and the other end is rotatably connected to the lifting component through a supporting component, and the two groups of mounting components are in opposite rotation directions along the lifting component, and the fastening unit arranged in the mounting component can clamp the pipeline; connecting components are respectively arranged at the four corners of the lifting component, the lower end of the connecting component is fixedly connected to the lifting component, and the upper end of the connecting component is cooperatively connected to the steel sections on both sides of the grid, and an I-beam is fixedly arranged between the two groups of connecting components on the same side of the lifting component.

[0007] Preferably, each group of the mounting components includes a mounting frame, a movable plate, a clamping member 1 and a clamping member 2; a movable plate is slidably arranged in the mounting frame, and fastening units are respectively arranged on the upper and lower sides of one side of the movable plate, and each group of fastening units includes a clamping member 1 fixedly arranged at both ends of the movable plate and a clamping member 2 symmetrically arranged with the clamping member 1, and the clamping member 2 is movably arranged on the mounting frame by cooperating with the telescopic cylinder, and the clamping member 1 and the clamping member 2 cooperate to clamp the pipe.

[0008] Preferably, each group of the connecting components includes a channel steel, an adjustable telescopic cylinder, a connector and an abutment plate; the lower end of the channel steel is fixedly connected to the telescopic end of the adjustable telescopic cylinder, the fixed end of the adjustable telescopic cylinder is fixedly set on the lifting component by bolts, the upper end of the channel steel is fixedly connected to the connector, and abutment plates are slidingly symmetrically arranged at both ends of the connector.

[0009] Preferably, a connecting platform is fixedly provided in the middle of the connector, and connecting grooves are respectively provided on both sides of the connecting platform, the two connecting grooves are respectively slidably connected to the abutment plates, and the upper ends of the abutment plates are higher than the upper ends of the connector, and moving iron cores are respectively fixedly provided at the centers of the non-opposite sides of the two abutment plates, and fixed iron cores are fixedly provided on the end walls at both ends of the connector, a connecting spring is provided between the fixed iron core and the moving iron core, a coil is provided on the fixed sleeve outside the fixed iron core, a movable spring is provided between the coil and the abutment plate, and the two abutment plates cooperate with the clamping steel.

[0010] Preferably, the movable plate is provided with two through slots at the upper and lower parts, a supporting mechanism is arranged in the middle of each through slot, the two supporting mechanisms correspond to the two fastening units respectively, and the supporting mechanism is located below the fastening unit, the movable plate is connected to one end of the supporting mechanism, and the other end of the supporting mechanism is connected to the side wall of the mounting frame.

[0011] Preferably, the supporting mechanism includes a conveying plate and a connecting head, a lifting plate is slidably arranged on the upper part of the conveying plate, one end of the connecting head is fixedly connected to the middle part of the conveying plate, and the other end is fixedly connected to the movable plate, a sliding fitting is fixedly connected to the lower side of the conveying plate, a sliding fitting is slidably arranged inside the sliding fitting, and the other end of the sliding fitting is fixedly connected to the mounting frame.

[0012] Preferably, the mounting assembly further comprises a cooperating telescopic cylinder, which is arranged on a mounting frame, and the second clamping member comprises a support, and the telescopic end of the cooperating telescopic cylinder passes through the mounting frame and is fixedly connected to the middle of the support, and a V-shaped mounting member is fixedly arranged at the center of the upper part of the support, and the angles between the mounting members are 90 degrees, and anti-slip pads are arranged on the opposite sides of the mounting members, and the structure of the first clamping member is the same as that of the second clamping member.

[0013] Preferably, each of the support components includes a support telescopic cylinder and a support rod; the support telescopic cylinder is arranged on the lifting component, and the upper end of the telescopic end of the support telescopic cylinder is rotatably connected to the lower end of the support rod through a fixed mounting seat, and the upper end of the support rod is rotatably connected to the bottom of the mounting frame; a second screw rod is rotatably connected to one end of the mounting seat, and a moving seat is threadedly connected to the second screw rod, and straight rods are rotatably arranged on both sides of the moving seat, and the upper ends of the straight rods are rotatably connected to the lower part of the support rod.

[0014] Preferably, the base includes a bottom plate, and the four corners of the bottom plate are bent downward to form L-shaped connecting ears. A mounting unit is fixedly arranged on the L-shaped connecting ears. The mounting unit is detachably fixed on the scissor-type lift by anchor bolts. Bolts are passed through the mounting unit and fastened by nuts.

[0015] A method for lifting pipes for steel structure grid, applicable to the pipe lifting device for steel structure grid, characterized in that the specific steps include: Step S1: Connect the steel structure grid with the top of the scissor lift using a pipe jacking device; Step S2: placing the pipe in a fastening unit provided in the installation assembly for clamping; Step S3: The scissor lift drives the steel structure grid pipe lifting device to the bottom of the steel grid structure and / or the lower chord grid structure, and adjusts the adjustment component and the lifting component to move them in the horizontal plane, so that the installation component drives the pipe to move to the bottom of the corresponding grid that needs to be passed through; Step S4: adjusting the connection assembly to connect it to the steel sections on both sides of the grid; Step S5: adjusting the two sets of installation components to set the pipelines relatively tilted; Step S6: The lifting assembly lifts the pipeline upward and passes through the steel grid structure and / or the lower chord grid structure; Step S7: Adjust the two sets of installation components to adjust the pipeline to a horizontal level, and loosen the pipeline to move it out for connection construction.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a pipe jacking device for a steel structure grid frame. By setting two groups of installation component transportation pipelines, the installation components can be inclined when passing through the grid, and can be smoothly lifted to the top of the steel grid structure or into the cone space through the steel grid structure and / or the lower chord grid structure, avoiding relying on manpower to tilt and lift, and the two groups of installation components are in a cross shape to avoid changing the center of gravity due to the flipping of the installation components, thereby affecting the stability of the jacking device; the jacking device also includes four connecting components respectively arranged at the four corners of the lifting components, the lower end of the connecting component is connected to the lifting component, and the connecting component includes A channel steel is arranged on the adjustable telescopic cylinder, and a plug-in is arranged on the channel steel. Abutment plates are symmetrically arranged at both ends of the plug-in. A fixed iron core is fixedly arranged at both ends of the connector, a coil is fixedly arranged on the fixed iron core, a moving iron core is fixedly arranged on the abutment plate, a movable spring is arranged on the outer sleeve of the moving iron core, a connecting spring is arranged between the moving iron core and the fixed iron core, and the two abutment plates contact the steel section by the electromagnetic effect of the coil being energized, and the steel section is clamped by the connecting spring and the movable spring when the coil is de-energized, so that the jacking device is connected and supported with the steel sections on both sides of the grid in the steel grid structure, so that the jacking device is not easy to shake when jacking the pipeline.

[0017] The present invention provides a pipe jacking device for a steel structure grid, wherein an installation component comprises a mounting frame, a movable plate is slidably arranged in the mounting frame, and fastening units are respectively arranged above and below the movable plate, and each group of fastening units comprises a clamping member 1 and a clamping member 2 corresponding to the clamping member 1, the clamping member 2 is arranged on the mounting frame, and the clamping member 1 and the clamping member 2 are symmetrically arranged, the clamping member 2 approaches the clamping member 1 under the action of a telescopic cylinder and cooperates with the clamping member 1 to clamp the pipe, and the movable plate can adjust the distance between the clamping member 1 and the clamping member 2 when it moves, so that it is suitable for the jacking installation of pipes of various diameters, and when two groups of installation components are transported in cooperation, multiple pipes can be transported at one time; and a vertical installation clamping structure is arranged on the clamping member 1 and the clamping member 2, which can be suitable for the clamping and jacking of round or square pipes.

[0018] The present invention provides a pipe jacking device and method for a steel structure grid, which is installed on a scissor-type lift. By providing a base and an adjusting component rotatably connected to the middle of the base, and a lifting component fixedly arranged on the adjusting component, the base drives the adjusting component and the parts connected thereto to rotate through gear transmission. The adjusting component can drive the lifting component and the parts connected thereto to move in two directions perpendicular to each other, and accurately adjust the installation component and the pipes transported therein to be located in the center of the grid.

[0019] The present invention provides a pipe jacking method for a steel structure grid, which is applied to a pipe jacking device for a steel structure grid. It can transport multiple pipes with different diameters or multiple cross-sections at one time, has strong applicability, and can also be connected with a steel grid structure to improve the stability of the jacking process to prevent the position of a scissors-type lift from deviating when it moves to the bottom of the grid, making it inconvenient to lift the pipe, avoid multiple adjustments of the scissors-type lift, and improve the efficiency of pipe lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a pipeline jacking device and method for a steel structure grid and a pipeline connection structure according to an embodiment of the present invention; Figure 2 This is a schematic structural diagram of a pipeline jacking device and method for a steel structure grid according to an embodiment of the present invention connected to a pipeline in a front view direction; Figure 3 This is a schematic diagram of the exploded structure of the connection between the base and the rotating plate according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the decomposition structure of the adjustment component connection according to an embodiment of the present invention; Figure 5 This is a schematic structural diagram of a second moving member according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the exploded structure of the connection between the lifting assembly and the connecting plate according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the exploded structure of the connection between the mounting assembly, the support assembly and the mounting plate according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the exploded structure of the installation assembly connection according to an embodiment of the present invention; Fig. 9 This is a schematic diagram of the structure of a movable plate according to an embodiment of the present invention; Fig.10 This is a schematic diagram of the structure of a support assembly according to an embodiment of the present invention; Fig.11 This is a schematic diagram of the exploded structure of the second connection of the clamping member according to an embodiment of the present invention; Fig.12 This is a schematic diagram of the exploded structure of the support mechanism connection according to an embodiment of the present invention; Fig.13This is a schematic diagram of the connection structure of the support mechanism in a side view according to an embodiment of the present invention; Fig.14 This is a schematic diagram of the structure of a connection component according to an embodiment of the present invention; Fig.15 This is a cross-sectional view of the connection between the connector, the abutment plate, the coil and the fixed iron core according to an embodiment of the present invention.

[0021] Reference numerals: 1. Base; 11. Bottom plate; 111. L-shaped connecting ear; 112. Rotating groove; 12. Fixed head; 13. L-shaped plate; 14. Active bevel gear; 15. Driven bevel gear; 2. Adjustment assembly; 21. Rotating plate; 211. First guide groove; 212. Fixed block; 213. Connecting pipe; 22. First moving member; 221. First guide rail; 222. Nut block; 23. Second guide rail; 24. Second moving member; 241. Connecting rod; 242. Connecting block; 243. Through hole; 244. Mounting groove; 25 , second guide groove; 26, connecting plate; 27, first screw rod; 28, moving rack; 29, moving gear; 210, moving motor; 3, lifting assembly; 31, mounting plate; 32, mounting block; 33, lifting and telescopic cylinder; 34, connecting rod; 35, rotating seat; 4, mounting assembly; 41, mounting frame; 411, matching block one; 412, matching block two; 413, rotating head; 414, matching block three; 415, matching block four; 42, moving plate; 421, through groove; 422, moving groove; 43, moving telescopic cylinder; 4 4. Fixed plate; 441. Adjustment slot; 442. Moving block; 45. Clamping piece 1; 46. Clamping piece 2; 462. Support; 463. Mounting piece; 464. Anti-skid pad; 47. Support mechanism; 471. Conveying plate; 472. Lifting plate; 4721. Conveying slot; 4722. Ball bearing; 4723. Insert block; 473. Connector; 4731. Positioning plate; 474. Sliding fitting; 475. Sliding piece; 4751. Sliding slot; 476. Matching rack; 477. Matching gear; 478. Lifting adjustment The whole cylinder; 48, matching telescopic cylinder; 5, connecting assembly; 51, channel steel; 511, upper mounting head; 512, lower mounting head; 52, I-beam; 53, adjusting telescopic cylinder; 54, plug-in; 541, connecting platform; 542, connecting groove; 55, abutment plate; 551, moving iron core; 56, coil; 57, fixed iron core; 6, supporting assembly; 61, supporting telescopic cylinder; 62, mounting seat; 621, extension plate; 63, through-shaft; 64, supporting rod; 65, straight rod; 66, second screw rod; 67, moving seat; 7, pipeline. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the following description of the invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are based on directions or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. The term "connection" only indicates the connection between devices and has no special meaning.

[0024] In addition, the technical fields and installation methods involved in the embodiments of the present invention described below can be combined with each other as long as there is no conflict between them.

[0025] Specific implementation: Please refer to Figure 1-Figure 15 A pipe lifting device and method for a steel structure grid is installed on a scissor-type lift and allows a pipe 7 to pass through a steel grid structure and / or a lower chord grid structure from bottom to top, comprising a base 1 and an adjusting component 2 rotatably arranged in the middle of the base 1, and a lifting component 3 installed at the upper end of the adjusting component 2, wherein the four corners of the lower part of the base 1 are detachably connected to the scissor-type lift, and the base 1 drives the adjusting component 2 and the connected components to deviate along the horizontal plane through a gear transmission mechanism; the adjusting component 2 comprises a rotating plate 21, a first moving member 22 and a second moving member 24, the rotating plate 21 is rotatably connected to the base 1, the upper surface of the rotating plate 21 is movably connected with the first moving member 22, the first moving member 22 can be moved along the rotating plate 21 through a screw nut mechanism, the first moving member 22 is movably connected with the second moving member 24 inside, and the second moving member 24 is movably connected to the first moving member 22. The moving member 24 can move along the first moving member 22 through a gear rack mechanism; two groups of mounting components 4 are arranged in parallel on the lifting component 3, one end of the mounting component 4 is a hinged end, the hinged end of the mounting component 4 is rotatably connected to the lifting component 3, and the other end is movably connected to the lifting component 3 through a support component 6, the lower end of the support component 6 is fixedly connected to the lifting component 3, and the support component 6 adjusts the angle between the mounting component 4 and the lifting component 3 through a support telescopic cylinder 61 and a screw nut mechanism. The hinged ends of the two groups of mounting components 4 and one end of the mounting support component 6 are arranged oppositely, and the rotation directions of the two groups of mounting components 4 relative to the lifting component 3 are opposite; the four corners of the lifting component 3 are respectively provided with connecting components 5, the lower end of the connecting component 5 is fixedly connected to the lifting component 3, and the upper end of the connecting component 5 is connected to the steel sections on both sides of the grid.

[0026] The base 1 includes a bottom plate 11, a driving bevel gear 14 and a driven bevel gear 15. The four corners of the bottom plate 11 are bent downward to form an L-shaped connecting ear 111. The L-shaped connecting ear 111 is penetrated with a connecting hole 1 in the horizontal direction. The L-shaped connecting ear 111 is detachably connected with a mounting unit. A rotating groove 112 is penetrated in the middle of the bottom plate 11. A connecting pipe 213 is provided in the middle of the lower surface of the rotating plate 21. The connecting pipe 213 passes through the rotating groove 112 and extends downward. The driven bevel gear 15 is fixedly provided at the lower part of the connecting pipe 213. The driving bevel gear 14 is also rotatably provided on the lower surface of the bottom plate 11. The driven bevel gear 15 is meshed and connected with the driving bevel gear 14. The driving bevel gear 14 is connected to the offset motor The output shaft is fixedly connected, and the offset motor drives the active bevel gear 14 to rotate, driving the driven bevel gear 15 and the rotating plate 21 and the components installed thereon to be offset in the horizontal direction; each of the mounting units comprises a fixed head 12 and an L-shaped plate 13, and the four corners of the fixed head 12 are fixedly arranged on the scissor-type lift by anchor bolts, and the lower end of the L-shaped connecting ear 111 is plugged into the fixed head 12, and a connecting hole 2 is penetrated through the upper part of the fixed head 12, and an L-shaped plate 13 is arranged above the fixed head 12, and the upper surface of the L-shaped plate 13 abuts against the lower surface of the base plate 11, and a connecting hole 3 is penetrated through the L-shaped plate 13, and the connecting hole 1, the connecting hole 2 and the connecting hole 3 are correspondingly connected, and bolts are penetrated inside and fastened by nuts.

[0027] The first guide grooves 211 are symmetrically arranged on both sides of the upper surface of the rotating plate 21, and fixed blocks 212 are fixedly arranged at both ends of the upper surface of the rotating plate 21. The first moving member 22 adopts a box-shaped structure with both ends passing through, and the first guide rails 221 are symmetrically arranged on both sides of the lower surface of the first moving member 22; The adjustment assembly 2 also includes a second guide rail 23, a second guide groove 25 and a first screw rod 27. The second guide rails 23 are fixedly arranged on the inner walls on both sides of the first movable member 22, and the second guide rails 23 are perpendicular to the direction of the first guide rails 221. The two first guide rails 221 are respectively slidably connected with the two first guide grooves 211 on the rotating plate 21. A slider is fixedly arranged in the middle of the lower surface of the first movable member 22, and a nut block 222 is arranged in the middle of the slider. The first screw rod 27 is penetrated in the nut block 222. The two ends of the first screw rod 27 are respectively connected to the two fixed guide grooves 211 on the rotating plate 21. The block 212 is rotatably connected, and one end of the first screw rod 27 passes through the fixed block 212 and is fixedly connected to the output shaft of the adjustment motor (not shown in the figure), and the first moving member 22 is threadedly connected to the first screw rod 27 through the nut block 222; a second moving member 24 is movably arranged in the first moving member 22, and second guide rails 23 are symmetrically arranged on the inner walls on both sides of the first moving member 22, and second guide grooves 25 are symmetrically arranged on the outer walls on both sides of the second moving member 24, and the second guide rails 23 are plugged and slidably connected to the second guide grooves 25, and the second guide grooves 25 are perpendicular to the direction of the first guide grooves 211.

[0028] The adjusting assembly 2 also includes a connecting plate 26, a moving rack 28, a moving gear 29 and a moving motor 210. Connecting rods 241 are fixedly arranged at the four corners of the upper surface of the second moving member 24. The second moving member 24 is fixedly connected to the connecting plate 26 through the connecting rods 241. Mounting grooves 244 are respectively provided on both sides of the second moving member 24. The second guide groove 25 is installed in the mounting groove 244. Two connecting blocks 242 are arranged between the two mounting grooves 244. The two connecting blocks 242 are respectively located on both sides of the second moving member 24. A through hole 243 is fixedly penetrated in the middle of the connecting block 242. A driving shaft is penetrated in the through hole 243. One end of the driving shaft passes through the connecting block 242 and is fixedly connected to the output shaft of the moving motor 210. Two moving gears 29 are rotatably arranged on the driving shaft. Two moving racks 28 are fixedly arranged on the inner wall of the lower side of the second guide rail 23. The two moving racks 28 are located between the two connecting blocks 242, and the moving racks 28 are meshed and connected with the moving gear 29.

[0029] If the lifting device is not directly below the grid in the projection on the horizontal plane, the first screw rod 27 is rotated to drive the first movable member 22 to move to a suitable position along the rotating plate 21, or the movable motor 210 is started, and the output shaft of the movable motor 210 drives the movable gear 29 to rotate, so that the second movable member 24 moves to a suitable position along the first movable member 22. The positions of the lifting component 3, the mounting component 4 and the connecting component 5 can be adjusted so that they are directly below the grid in the projection on the horizontal plane, so as to avoid the situation where one end of the pipeline 7 is too long relative to one side of the grid, making it inconvenient to lift the pipeline 7 to cross the grid.

[0030] The lifting assembly 3 includes a mounting plate 31, a mounting block 32, a lifting and telescopic cylinder 33, a connecting rod 34 and a rotating seat 35. Two mounting plates 31 are symmetrically arranged in an upper and lower direction. The four corners of the upper mounting plate 31 are fixed with mounting blocks 32, and the mounting blocks 32 are used to connect the connecting assembly 5. The two ends of the upper mounting plate 31 are respectively fixed with rotating seats 35. The two rotating seats 35 are arranged along the diagonal of the mounting plate 31. The upper part of the rotating seat 35 is provided with a mounting shaft, and the rotating seat 35 is used to connect the mounting assembly 4; two scissor units are respectively arranged between the two mounting plates 31, and mounting rods are respectively arranged between the upper and lower ends of the two scissor units. The mounting rod located at the top is rotatably connected to the telescopic end of the lifting and telescopic cylinder 33. The mounting rod located at the bottom is rotatably connected to the fixed end of the lifting and telescopic cylinder 33. Each scissor-type unit includes two cross-connected connecting rods 34, wherein the lower end of one connecting rod 34 is rotatably connected to the mounting plate 31 located below, and the upper end of the connecting rod 34 is slidably connected to the mounting plate 31 located above, and the lower end of the other connecting rod 34 is slidably connected to the mounting plate 31 located below, and the upper end of the connecting rod 34 is rotatably connected to the mounting plate 31 located above. The lifting drive mechanism in the lifting assembly 3 is the existing technology, which avoids adjusting the scissor-type lift again after adjusting the position of the pipeline 7, which may cause the lifting process of the scissor-type lift to be unstable due to the change in the center of gravity. At the same time, the lifting height can also be further increased to facilitate the lifting of the pipeline 7 to above the grid.

[0031] Each group of the mounting components 4 includes a mounting frame 41, a movable plate 42, a movable telescopic cylinder 43, a fixed plate 44, a clamping piece 45, a clamping piece 46 and a supporting mechanism 47; the mounting frame 41 adopts a box-type frame structure with two ends passing through, a rotating head 413 is arranged at the bottom of the mounting frame 41, and the mounting frame 41 is rotatably connected to the rotating seat 35 through the rotating head 413, a fixed plate 44 is fixedly arranged on the lower inner side of the mounting frame 41, and an adjusting groove 441 is opened on one side of the upper surface of the fixed plate 44, and a plurality of movable blocks 442 are fixedly arranged on the adjusting groove 441 at intervals along the length direction, and a movable plate 42 is slidably arranged on the adjusting groove 441, and two groups of matching blocks 411 are respectively arranged on the upper and lower sides of the mounting frame 41, and each group The mating block 1 411 includes two mating blocks 1 411 symmetrically arranged on both side ends of the mounting frame 41, a clamping piece 2 46 is installed on the mating block 1 411, a mating block 3 414 is fixedly arranged in the middle of the lower part of each group of mating blocks 1 411, mating blocks 2 412 are respectively arranged at both ends of the lower part of the mounting frame 41, a movable telescopic cylinder 43 is installed on the side of the mating block 2 412 facing the inside of the mounting frame 41, and mating blocks 415 are respectively fixedly arranged at the bottom of both ends of the mounting frame 41, an oblong groove is opened on the mating block 415, a push rod is installed on the telescopic end of the movable telescopic cylinder 43, the axis of the push rod is perpendicular to the axis of the telescopic end, and the push rod passes through the oblong groove on the mating block 415 and is fixedly connected to the movable plate 42.

[0032] The lower part of the movable plate 42 is provided with a plurality of movable grooves 422 spaced apart along the length direction, and the plurality of movable grooves 422 are respectively correspondingly plugged and slidably connected with the plurality of movable blocks 442 on the fixed plate 44, and the movable plate 42 is provided with two through grooves 421 at the upper and lower parts, and a supporting mechanism 47 is installed in the middle of each through groove 421, and two groups of fastening units are fixedly provided at the upper and lower parts of the movable plate 42 on one side facing the fixed end of the movable telescopic cylinder 43, and the two fastening units correspond to the two supporting mechanisms 47 respectively, and the supporting mechanism 47 is located below the fastening units, and each group of fastening units includes a clamping member 45 symmetrically arranged at both ends of the movable plate 42 and a clamping member 45 movably arranged at both ends of the mounting frame 41 Part 2 46, and the two clamping parts 1 45 correspond to the two clamping parts 2 46 one by one, the clamping parts 1 45 and the clamping parts 2 46 are symmetrically arranged, and the clamping parts 1 45 and the clamping parts 2 46 cooperate to clamp the pipe 7; the clamping part 2 46 includes a support 462, and a V-shaped mounting part 463 is fixedly arranged at the center of the upper part of the support 462, and the angle between the mounting parts 463 is 90 degrees, which can be suitable for round or square pipes 7, and the opposite sides of the mounting parts 463 are provided with anti-skid pads 464, and the anti-skid pads 464 can increase the friction force in contact with the pipe 7, and effectively prevent the pipe 7 from falling off during clamping; the structure of the clamping part 1 45 is the same as that of the clamping part 2 46.

[0033] The installation component 4 also includes a cooperating telescopic cylinder 48, the fixed end of which is fixedly arranged on the cooperating block 411, and the telescopic end of the cooperating telescopic cylinder 48 passes through the cooperating block 411 and is fixedly connected to the middle part of the support 462. When the cooperating telescopic cylinder 48 moves, the telescopic end of the cooperating telescopic cylinder 48 extends or shortens, driving the clamping member 46 to move toward or away from the clamping member 45, so that the clamping member 45 and the clamping member 46 cooperate to clamp the pipe 7. At the same time, the moving plate 42 moves to change the relative position of the clamping member 45 and the mounting frame 41, so that it can be used to clamp pipes 7 of various diameters.

[0034] The supporting mechanism 47 comprises a conveying plate 471, a lifting plate 472, a connecting head 473, a sliding fitting 474, a sliding member 475, a fitting rack 476, a fitting gear 477 and a lifting adjustment cylinder 478; a receiving cavity is arranged in the middle of the upper surface of the conveying plate 471, and a lifting plate 472 is slidingly arranged in the receiving cavity, and a V-shaped conveying groove 4721 is arranged on the upper surface of the lifting plate 472, and the angle between the conveying grooves 4721 is 90 degrees, and a ball 4722 is rotatably arranged on the conveying groove 4721, so that the construction personnel can move the pipeline 7 conveniently; lifting adjustment cylinders 478 are respectively installed at the four corners of the conveying plate 471, and the telescopic end of the lifting adjustment cylinder 478 is fixedly connected to the lifting plate 472, and a buffer spring 1 is sleeved on the telescopic end of the lifting adjustment cylinder 478, and the deformation of the buffer spring 1 can offset the vibration generated during the transportation of part of the pipeline 7, so as to facilitate the construction personnel to move the pipeline 7. A concave block is arranged in the middle of the cavity, a groove is formed in the middle of the concave block, and a plurality of buffer springs 2 are arranged at intervals along the length direction of the groove. An insert block 4723 is fixedly arranged in the middle of the lower surface of the lifting plate 472, and the insert block 4723 can be inserted into the groove and abut against the buffer spring 2. The buffer spring 2 is deformed by the downward pressure of the pipeline 7 and the lifting plate 472, so that part of the pressure is offset; the connecting head 473 is fixedly arranged in the middle of one side of the conveying plate 471, and the connecting head 473 is fixedly arranged in the middle of the through groove 421, and a positioning plate 4731 is fixedly arranged on the side of the connecting head 473 close to the conveying plate 471, and the positioning plate 4731 is fixedly connected to the conveying plate 471 by bolts, and a sliding fitting 474 is fixedly connected to the lower side of the conveying plate 471, and one end of the sliding fitting 474 close to the connecting head 473 is fixedly connected to the connecting head 473.

[0035] The sliding fitting 474 is hollow inside, and a sliding piece 475 is slidably arranged inside the sliding fitting 474. The end of the sliding fitting 474 away from the sliding fitting 474 is fixedly connected to the matching block 3 414 on the mounting frame 41; a sliding groove 4751 is provided in the middle of the sliding fitting 475, and a matching gear 477 is rotatably arranged above the sliding groove 4751. A driving motor (not shown in the figure) is fixedly arranged in the middle of the lower side of the sliding fitting 474, and the output shaft of the driving motor passes through the sliding fitting 474 and the sliding groove 4751 on the sliding fitting 475 and is fixedly connected to the matching gear 477; when the mounting assembly 4 clamps the pipe 7, the movable plate 42 is adjusted to a suitable position according to the diameter of the pipe 7. At the same time, the matching gear 477 rotates to make the sliding fitting 475 move along the length direction of the matching rack 476, so that The mounting frame 41 is firmly connected to the movable plate 42; the pipe 7 is passed from any end of the mounting frame 41 to the lifting plate 472 inside the mounting frame 41; the lifting plate 472 supports and transports the pipe 7 until the pipe 7 moves to a point where the center of the pipe 7 and the center of the lifting plate 472 are roughly in line; the lifting adjustment cylinder 478 is adjusted so that the lifting adjustment cylinder 478 drives the lifting plate 472 and the pipe 7 to rise until the side wall of the pipe 7 abuts against the clamping member 45; the telescopic cylinder 48 is adjusted so that the supporting seat 462 is driven by the telescopic cylinder 48 to move toward the direction close to the pipe 7; the supporting seat 462 cooperates with the clamping member 45 to clamp the pipe 7; the two groups of clamping members 45 in each group of fastening units respectively cooperate with the supporting seat 462 in the corresponding clamping member 2 46 to clamp the same pipe 7; each group of mounting components 4 can clamp at least one pipe 7.

[0036] Each group of the connecting components 5 includes a channel steel 51, an adjustable telescopic cylinder 53, a plug-in component 54 and an abutment plate 55; an I-beam 52 is fixedly arranged between the two groups of connecting components 5 located on the same side of the lifting component 3, so that the spacing between the two channel steels 51 is constant, and the upper and lower ends of the channel steel 51 are respectively fixedly arranged with an upper mounting head 511 and a lower mounting head 512, and the lower mounting head 512 is fixedly connected to the telescopic end of the adjustable telescopic cylinder 53, and the fixed end of the adjustable telescopic cylinder 53 is fixedly arranged on the mounting block 32 set at one corner of the mounting plate 31 by bolts, and the channel steel 51 is fixedly arranged with a lower mounting head 512. The upper mounting head 511 is fixedly connected to the plug-in component 54. The plug-in component 54 adopts a U-shaped structure. A connecting platform 541 is fixedly arranged in the middle of the plug-in component 54. Connecting grooves 542 are respectively provided on both sides of the connecting platform 541. A contact plate 55 is slidably arranged in each connecting groove 542, and the upper end of the contact plate 55 is higher than the upper end of the plug-in component 54. The two contact plates 55 are symmetrically arranged. When not under stress, the distance between the two contact plates 55 is less than the width of the steel section on one side of the grid; a moving iron core 551 is fixedly arranged at the center of the non-opposite sides of the two contact plates 55. The plug-in component 5 The two ends of the connector 54 are respectively fixed with fixed cores 57, the inner walls of the two ends of the connector 54 are fixed with coils 56, and the coils 56 are sleeved outside the fixed cores 57, the moving core 551 is slidably penetrated in the middle of the coils 56, and the outer sleeve of the moving core 551 is provided with a moving spring, and the two ends of the moving spring are respectively connected to the coils 56 and the abutment plate 55, and a connecting spring is provided between the moving core 551 and the fixed core 57. When the connector 54 is connected to the steel on one side of the grid, the coil 56 is energized to generate a magnetic effect, and the moving core 551 drives the abutment plate 55 to abut against the grid under the action of the magnetic force. Move in the direction close to the fixed iron core 57, the connecting spring and the movable spring are both compressed, so that the distance between the two abutment plates 55 is greater than the width of the steel section, so that the steel section can be located between the two abutment plates 55; adjust the telescopic end of the telescopic cylinder 53 to extend, drive the connector 54 to move upward until the lower surface of the steel section abuts against the connecting platform 541, the coil 56 is powered off, and the abutment plate 55 is driven to move in the direction close to the steel section under the elastic force of the connecting spring and the movable spring. The two abutment plates 55 clamp the steel section under the action of the elastic force, and the extension length of the telescopic end of the telescopic cylinder 53 is controlled and adjusted to be stable.

[0037] Each of the support components 6 includes a support telescopic cylinder 61, a mounting seat 62, a through shaft 63, a support rod 64, a straight rod 65, a second screw rod 66 and a movable seat 67; the fixed end of the support telescopic cylinder 61 is fixedly arranged on the mounting plate 31, the telescopic end of the support telescopic cylinder 61 is fixedly provided with a mounting seat 62, the upper end of the mounting seat 62 is fixedly provided with a through shaft 63, the middle part of the through shaft 63 is rotatably provided with a support rod 64, and the upper end of the support rod 64 is rotatably connected to the bottom of the mounting frame 41; one end of the mounting seat 62 extends outward to form an extension plate 621, the extension plate 621 is rotatably connected with a second screw rod 66, the second screw rod 66 is threadedly connected with a movable seat 67, and the lower end of the movable seat 67 is slidably connected to the extension plate 621. Straight rods 65 are rotatably provided on both sides of the movable seat 67, and the upper ends of the straight rods 65 are rotatably connected to the lower parts of the support rods 64; when adjusting the angle between the installation component 4 and the horizontal plane, the telescopic end of the support telescopic cylinder 61 is adjusted to extend or shorten to a suitable position, so that the second screw rod 66 is rotated to drive the support mechanism 47 to move, so that the straight rod 65 drives the support rod 64 to rotate, thereby turning the installation component 4 to a suitable position; wherein, the extension of the telescopic end of the support telescopic cylinder 61 can drive the installation component 4 to flip once, and the cooperation of the second screw rod 66 and the straight rod 65 can drive the support rod 64 to rotate, and the angle between the installation component 4 and the lifting component 3 is adjusted for a second time, which can expand the angle adjustment range and adapt to pipes 7 of various lengths.

[0038] A method for lifting a pipe for a steel structure grid is applied to the above-mentioned pipe lifting device for a steel structure grid, and comprises the following steps: Step S1: Connect the steel structure grid with the top of the scissor lift using a pipe jacking device; Step S2: insert the pipe 7 from any end of the mounting frame 41 and abut against the lifting plate 472, the lifting plate 472 supports and transports the pipe 7 until the pipe 7 moves to a point where the center of the pipe 7 and the center of the lifting plate 472 are roughly in line, adjust the lifting adjustment cylinder 478, so that the lifting adjustment cylinder 478 drives the lifting plate 472 and the pipe 7 to rise to a suitable position, adjust the telescopic cylinder 48, and drive the clamping member 2 46 to move toward the direction of the clamping member 1 45, and the clamping member 2 46 cooperates with the clamping member 1 45 to clamp the pipe 7; Step S3: The scissor lift drives the steel structure grid pipe jacking device to the bottom of the steel grid structure and / or the lower chord grid structure, adjusts the active bevel gear 14 to rotate, drives the driven bevel gear 15 and the rotating plate 21 and the components installed thereon to shift in the horizontal direction, until the two sides of the mounting plate 31 are parallel to the steel sections on both sides of the corresponding grid in horizontal projection; rotates the first screw rod 27 to drive the first moving member 22 to move to a suitable position along the rotating plate 21, or starts the moving motor 210, and the output shaft of the moving motor 210 drives the moving gear 29 to rotate, so that the second moving member 24 moves to a suitable position along the first moving member 22, so that the mounting assembly 4 drives the pipeline 7 to move to the bottom of the corresponding grid that needs to be passed through; Step S4: The coil 56 is energized to generate a magnetic effect. Under the action of the magnetic force, the movable iron core 551 drives the contact plate 55 to move toward the fixed iron core 57. The connecting spring and the moving spring are compressed, and the telescopic end of the telescopic cylinder 53 is extended, driving the connector 54 to move upward to the lower surface of the steel section and abut against the connecting platform 541. The coil 56 is de-energized, and under the action of the elastic force of the connecting spring and the moving spring, the contact plate 55 is driven to move toward the steel section. The two contact plates 55 clamp the steel section under the action of the elastic force, and the extension length of the telescopic end of the telescopic cylinder 53 is controlled and adjusted to be stable. Step S5: Adjust the two groups of installation components 4 to rotate in opposite directions, driving the pipes 7 clamped in the two groups of installation components 4 to be relatively tilted: adjust the telescopic end of the support telescopic cylinder 61 to extend or shorten to a suitable position, rotate the second screw rod 66, drive the support mechanism 47 to move, and make the straight rod 65 drive the support rod 64 to rotate, so that the installation components 4 and the pipe 7 are turned over to a suitable position; Step S6: adjusting the lifting and telescopic cylinder 33 to extend the telescopic end of the lifting and telescopic cylinder 33, driving the installation assembly 4 and the pipeline 7 to rise and pass through the steel grid structure and / or the lower chord grid structure; Step S7: adjust the supporting telescopic cylinder 61 and the second screw rod 66 to reset them, drive the two sets of mounting components 4 to rotate in the opposite direction so that the pipe 7 clamped inside is adjusted to the horizontal, and adjust the telescopic end of the telescopic cylinder 48 to contract, loosen the pipe 7 and move it out for connection construction.

[0039] The present invention provides a pipe jacking device for a steel structure grid frame. By setting two groups of installation components 4 to transport pipes 7, the installation components 4 can be inclined when passing through the grid, and can be smoothly lifted to the top of the steel grid structure or into the cone space through the steel grid structure and / or the lower chord grid structure, avoiding relying on manpower to tilt and lift, and the two groups of installation components 4 are in a cross shape to avoid the center of gravity changing due to the flipping of the installation components 4, thereby affecting the stability of the jacking device; the jacking device also includes four connecting components 5 respectively arranged at the four corners of the lifting component 3, the lower end of the connecting component 5 is connected to the lifting component 3, and the connecting component 5 includes a channel steel 5 arranged on the adjusting telescopic cylinder 53 1. A plug-in connector 54 is provided on the channel steel 51, and abutment plates 55 are symmetrically provided at both ends of the plug-in connector 54. A fixed iron core 57 is fixedly provided at both ends of the plug-in connector 54, and a coil 56 is fixedly sleeved outside the fixed iron core 57. A moving iron core 551 is fixedly provided on the abutment plate 55, and a movable spring is provided outside the movable iron core 551. A connecting spring is provided between the moving iron core 551 and the fixed iron core 57. The two abutment plates 55 contact the steel section by the electromagnetic effect of the coil 56 being energized. When the coil 56 is de-energized, the connecting spring and the movable spring are used to clamp the steel section, so that the jacking device is connected and supported with the steel sections on both sides of the grid in the steel section grid structure, so that the jacking device is not easy to shake when jacking the pipeline 7.

[0040] The present invention provides a pipe jacking device for a steel structure grid, wherein an installation component 4 comprises a mounting frame 41, a movable plate 42 is slidably arranged in the mounting frame 41, and fastening units are respectively arranged above and below the movable plate 42, and each group of fastening units comprises a clamping member 45 and a clamping member 46 corresponding to the clamping member 45, the clamping member 46 is arranged on the mounting frame 41, and the clamping member 45 and the clamping member 46 are symmetrically arranged, the clamping member 46 approaches the clamping member 45 under the action of a telescopic cylinder 48 and cooperates with the clamping member 45 to clamp the pipe 7, and the movable plate 42 can move to adjust the distance between the clamping member 45 and the clamping member 46, so that it is suitable for the jacking installation of pipes 7 of various diameters, and when two groups of installation components 4 are transported in cooperation, multiple pipes 7 can be transported at one time; and a vertical installation clamping structure is arranged on the clamping member 45 and the clamping member 46, which can be suitable for the clamping and jacking of round or square pipes 7.

[0041] The present invention provides a pipe jacking device and method for a steel structure grid, which is installed on a scissor-type lift. By providing a base 1 and an adjusting component 2 rotatably connected to the middle of the base 1, and a lifting component 3 fixedly arranged on the adjusting component 2, the base 1 drives the adjusting component 2 and the parts connected thereto to rotate through gear transmission, and the adjusting component 2 can drive the lifting component 3 and the parts connected thereto to move in two directions perpendicular to each other, and accurately adjust the installation component 4 and the pipe 7 transported therein so that they are located in the center of the grid.

[0042] The present invention provides a pipe jacking method for a steel structure grid, which is applied to a pipe jacking device for a steel structure grid. It can transport multiple pipes 7 with different diameters or multiple cross-sections at one time, has strong applicability, and can also be connected with a steel grid structure to improve the stability of the jacking process to prevent the position of a scissor-type lift from deviating when it moves to the bottom of the grid, making it inconvenient to lift the pipe, avoid multiple adjustments of the scissor-type lift, and improve the efficiency of pipe lifting.

Claims

1. A pipe lifting device and method for a steel structure grid, which is installed on a scissor lift and drives a pipe (7) from bottom to top through a steel grid structure and / or a lower chord grid structure, characterized in that: The invention comprises a base (1), an adjusting component (2) rotatably arranged in the middle of the base (1), and a lifting component (3) mounted on the upper end of the adjusting component (2), wherein the base (1) is detachably connected to the scissor-type lift; the adjusting component (2) comprises a rotating plate (21), a first moving member (22) and a second moving member (24), wherein the rotating plate (21) is rotatably connected to the base (1), the upper surface of the rotating plate (21) is movably connected with the first moving member (22), the first moving member (22) moves along the rotating plate (21) through a screw nut mechanism, the first moving member (24) is movably connected inside the first moving member (22), and the second moving member (24) moves along the first moving member through a gear rack mechanism. (22) movement; two groups of mounting components (4) are arranged on the lifting component (3), one end of the mounting component (4) is rotatably connected to the lifting component (3), and the other end is rotatably connected to the lifting component (3) through the support component (6), the two groups of mounting components (4) are in opposite rotation directions along the lifting component (3), and the fastening unit arranged in the mounting component (4) can clamp the pipeline (7); the four corners of the lifting component (3) are respectively provided with connecting components (5), the lower end of the connecting component (5) is fixedly connected to the lifting component (3), the upper end of the connecting component (5) is cooperatively connected to the steel sections on both sides of the grid, and an I-beam (52) is fixedly arranged between the two groups of connecting components (5) located on the same side of the lifting component (3).

2. A pipe lifting device and method for a steel structure grid according to claim 1, characterized in that: Each group of the mounting components (4) comprises a mounting frame (41), a movable plate (42), a clamping member 1 (45) and a clamping member 2 (46); a movable plate (42) is slidably arranged in the mounting frame (41), and fastening units are respectively arranged on one side of the movable plate (42) at the top and the bottom. Each group of fastening units comprises a clamping member 1 (45) fixedly arranged at both ends of the movable plate (42) and a clamping member 2 (46) symmetrically arranged with the clamping member 1 (45). The clamping member 2 (46) is movably arranged on the mounting frame (41) by cooperating with a telescopic cylinder (48), and the clamping member 1 (45) and the clamping member 2 (46) cooperate to clamp the pipe (7).

3. The pipe lifting device and method for steel structure grid according to claim 1, characterized in that: Each group of the connecting components (5) comprises a channel steel (51), an adjustable telescopic cylinder (53), a plug-in connector (54) and an abutment plate (55); the lower end of the channel steel (51) is fixedly connected to the telescopic end of the adjustable telescopic cylinder (53); the fixed end of the adjustable telescopic cylinder (53) is fixedly arranged on the lifting component (3) by means of bolts; the upper end of the channel steel (51) is fixedly connected to the plug-in connector (54); and the abutment plates (55) are slidably symmetrically arranged at both ends of the plug-in connector (54).

4. A pipe lifting device and method for a steel structure grid according to claim 3, characterized in that: A connecting platform (541) is fixedly arranged in the middle of the plug connector (54), and connecting grooves (542) are respectively provided on both sides of the connecting platform (541). The two connecting grooves (542) are respectively slidably connected to the abutment plates (55), and the upper ends of the abutment plates (55) are higher than the upper ends of the plug connector (54). Moving iron cores (551) are respectively fixedly arranged at the centers of the non-opposing sides of the two abutment plates (55). Fixed iron cores (57) are fixedly arranged on the end walls at both ends of the plug connector (54), and a connecting spring is arranged between the fixed iron core (57) and the moving iron core (551). A coil (56) is fixedly sleeved outside the fixed iron core (57), and a movable spring is arranged between the coil (56) and the abutment plates (55). The two abutment plates (55) cooperate with the clamping steel.

5. The pipe lifting device and method for steel structure grid according to claim 2, characterized in that: The movable plate (42) is provided with two through slots (421) at the top and bottom, and a support mechanism (47) is arranged in the middle of each through slot (421). The two support mechanisms (47) correspond to the two fastening units respectively, and the support mechanisms (47) are located below the fastening units. The movable plate (42) is connected to one end of the support mechanism (47), and the other end of the support mechanism (47) is connected to the side wall of the mounting frame (41).

6. A pipe lifting device and method for a steel structure grid according to claim 5, characterized in that: The support mechanism (47) comprises a conveying plate (471) and a connecting head (473); a lifting plate (472) is slidably arranged on the upper part of the conveying plate (471); one end of the connecting head (473) is fixedly connected to the middle part of the conveying plate (471), and the other end is fixedly connected to the moving plate (42); a sliding fitting (474) is fixedly connected to the lower side of the conveying plate (471); a sliding member (475) is slidably arranged inside the sliding fitting (474); and the other end of the sliding member (475) is fixedly connected to the mounting frame (41).

7. A pipe lifting device and method for a steel structure grid according to claim 2, characterized in that: The mounting assembly (4) further comprises a matching telescopic cylinder (48), wherein the matching telescopic cylinder (48) is arranged on the mounting frame (41); the second clamping member (46) comprises a support (462); the telescopic end of the matching telescopic cylinder (48) passes through the mounting frame (41) and is fixedly connected to the middle of the support (462); a V-shaped mounting member (463) is fixedly arranged at the center of the upper portion of the support (462); the angle between the mounting members (463) is 90 degrees; anti-slip pad layers (464) are arranged on opposite sides of the mounting members (463); and the structure of the first clamping member (45) is the same as that of the second clamping member (46).

8. A pipe lifting device and method for a steel structure grid according to claim 2, characterized in that: Each of the support assemblies (6) comprises a support telescopic cylinder (61) and a support rod (64); the support telescopic cylinder (61) is arranged on the lifting assembly (3); the upper end of the telescopic end of the support telescopic cylinder (61) is rotatably connected to the lower end of the support rod (64) via a fixed mounting seat (62); the upper end of the support rod (64) is rotatably connected to the bottom of the mounting frame (41); a second screw rod (66) is rotatably connected to one end of the mounting seat (62); a moving seat (67) is threadedly connected to the second screw rod (66); straight rods (65) are rotatably arranged on both sides of the moving seat (67); the upper ends of the straight rods (65) are rotatably connected to the lower part of the support rod (64).

9. A pipe lifting device and method for a steel structure grid according to claim 1, characterized in that: The base (1) comprises a bottom plate (11), the four corners of the bottom plate (11) being bent downwards to form L-shaped connecting ears (111), a mounting unit being fixedly arranged on the L-shaped connecting ears (111), the mounting unit being detachably fixed on the scissor lift by means of anchor bolts, the mounting unit being penetrated by bolts and fastened by nuts.

10. A method for lifting pipes for steel structure grids, applicable to the pipe lifting device for steel structure grids according to any one of claims 1 to 9, characterized in that: The specific steps include: Step S1: Connect the steel structure grid with the top of the scissor lift using a pipe jacking device; Step S2: placing the pipe (7) in a fastening unit provided in the installation assembly (4) for clamping; Step S3: The scissor lift drives the steel structure grid pipe lifting device to the bottom of the steel grid structure and / or the lower chord grid structure, and adjusts the adjustment component (2) and the lifting component (3) to move them in the horizontal plane, so that the installation component (4) drives the pipe (7) to move to the bottom of the corresponding grid that needs to be passed through; Step S4: adjusting the connection assembly (5) so that it is connected to the steel sections on both sides of the grid; Step S5: adjusting the two sets of mounting components (4) to set the pipeline (7) relatively tilted; Step S6: the lifting assembly (3) lifts the pipeline upward and passes through the steel grid structure and / or the lower chord grid structure; Step S7: adjusting the two sets of installation components (4) so ​​that the pipeline (7) is adjusted to be horizontal, and loosening the pipeline (7) to remove it for connection construction.

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