CN113415712A - Lifting appliance for large-section jacking pipe joints in urban dense area and lifting method thereof - Google Patents

Lifting appliance for large-section jacking pipe joints in urban dense area and lifting method thereof Download PDF

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Publication number
CN113415712A
CN113415712A CN202110778111.5A CN202110778111A CN113415712A CN 113415712 A CN113415712 A CN 113415712A CN 202110778111 A CN202110778111 A CN 202110778111A CN 113415712 A CN113415712 A CN 113415712A
Authority
CN
China
Prior art keywords
hoisting
box body
pipe joint
hoisted
lifting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110778111.5A
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Chinese (zh)
Inventor
卢康明
蒋健
王金一
黄德中
陈旭光
李�瑞
王帮由
朱健
王未墨
许立斌
牛恒栓
陈培新
寇晓勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Tunnel Shield Engineering Co ltd
Shanghai Tunnel Engineering Co Ltd
Original Assignee
Shanghai Tunnel Shield Engineering Co ltd
Shanghai Tunnel Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Tunnel Shield Engineering Co ltd, Shanghai Tunnel Engineering Co Ltd filed Critical Shanghai Tunnel Shield Engineering Co ltd
Priority to CN202110778111.5A priority Critical patent/CN113415712A/en
Publication of CN113415712A publication Critical patent/CN113415712A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12Slings comprising chains, wires, ropes, or bands; Nets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention relates to a large-section jacking pipe joint hoisting tool and a hoisting method thereof in an urban dense area, wherein the hoisting tool comprises: the top of each box body is provided with a lifting lug, each box body is provided with a bolt hole, the box bodies can be attached to two opposite sides of a pipe joint to be hoisted, and the bolt holes in the box bodies are aligned with the hoisting holes in the pipe joint to be hoisted; the connecting bolt is inserted into the bolt hole of the box body and penetrates through the bolt hole and the hoisting hole to connect the box body and the pipe joint to be hoisted. The lifting appliance provided by the invention is suitable for lifting large-section pipe-jacking pipe sections in urban dense areas, is small in size and convenient for on-site manufacture and processing, is adhered to the side parts of the pipe sections during use, is beneficial to lifting in a narrow space, does not occupy a field due to small size, can be convenient for lifting the pipe sections in a small and shallow working well, and can flexibly avoid the structure from colliding with the structure.

Description

Lifting appliance for large-section jacking pipe joints in urban dense area and lifting method thereof
Technical Field
The invention relates to the field of pipe joint hoisting construction engineering, in particular to a large-section jacking pipe joint hoisting tool and a hoisting method thereof in an urban dense area.
Background
The large-section pipe jacking tunnel constructed in the urban dense area is often narrow in ground area, and the starting working well is insufficient in length, width, clearance and size, and the pipe joints are integrally formed, so that the pipe joints are large in size and heavy in weight. The portal-shaped carrying pole and pipe joint automatic turning-over frame has the following problems in the hoisting construction of large pipe joints in urban dense areas:
the whole size of the automatic turning frame of the door-shaped carrying pole and the pipe section is larger, and the automatic turning frame cannot be processed and manufactured on site in a dense city area; because the size is large, the shoulder pole and the pipe joint automatic overturning frame occupy a large area when lying, and a support is required to be manufactured on a construction site for placing the shoulder pole and the pipe joint automatic overturning frame; for a jacking pipe starting well with a small hoisting opening and shallow well depth, the shoulder pole and the automatic pipe joint overturning frame are easy to collide with the structure due to the wide hoisting.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a large-section jacking pipe joint hoisting tool for an urban dense area and a hoisting method thereof, and solves the problems that the existing door-shaped carrying pole and the existing pipe joint automatic turning frame are large in size, occupy a large field, increase the ground land burden, and are easy to collide structures during hoisting.
The technical scheme for realizing the purpose is as follows:
the invention provides a large-section jacking pipe joint hoisting tool for an urban dense area, which comprises:
the hoisting device comprises a pair of box bodies, lifting lugs are arranged at the tops of the box bodies, bolt holes are formed in the box bodies, the box bodies can be attached to two opposite sides of a pipe joint to be hoisted, and the bolt holes in the box bodies are aligned with hoisting holes in the pipe joint to be hoisted; and
the connecting bolt is inserted into the bolt hole of the box body and penetrates through the bolt hole and the hoisting hole to connect the box body and the pipe joint to be hoisted.
The lifting appliance provided by the invention is suitable for lifting large-section pipe-jacking pipe sections in urban dense areas, is small in size and convenient for on-site manufacture and processing, is adhered to the side parts of the pipe sections during use, is beneficial to lifting in a narrow space, does not occupy a field due to small size, can be convenient for lifting the pipe sections in a small and shallow working well, and can flexibly avoid the structure from colliding with the structure.
The large-section pipe-jacking section hoisting tool for the urban dense area is further improved in that the width of the box body is smaller than that of the pipe section to be hoisted, and when the box body is attached to the side part of the pipe section to be hoisted, the top elevation of the box body is lower than that of the pipe section to be hoisted.
The large-section jacking pipe joint hoisting sling for the urban dense area is further improved in that a stiffening plate is arranged inside the box body, and a stiffening plate top support is connected between two opposite side plates of the box body.
The hoisting tool for the large-section jacking pipe joints in the urban dense area is further improved in that two lifting lugs are arranged on two sides of the top of the box body.
The large-section jacking pipe joint hoisting sling for the urban dense area is further improved in that an anti-drop hole is formed in the upper portion of the box body.
The invention also provides a hoisting method of the hoisting tool for the large-section jacking pipe joints in the urban dense area, which comprises the following steps:
providing the lifting appliance, attaching the pair of box bodies to two opposite sides of the pipe joint to be lifted, and aligning the bolt holes in the box bodies with the lifting holes in the pipe joint to be lifted;
inserting connecting bolts into the corresponding bolt holes and the corresponding hoisting holes so as to connect the box body with the pipe joints to be hoisted; and
and providing hoisting equipment, connecting a lifting rope on the hoisting equipment to the corresponding lifting lugs, hoisting the pipe joint to be hoisted by using the hoisting equipment, and hoisting the pipe joint to be hoisted to the corresponding position, thereby completing hoisting of the pipe joint.
The hoisting method of the invention is further improved in that the method further comprises the following steps:
and arranging two lifting ropes on the hoisting equipment, arranging the lifting ropes and the box body in a one-to-one correspondence manner, and connecting the lifting ropes to lifting lugs of the box body.
The hoisting method is further improved in that after the connecting bolt is inserted into the corresponding bolt hole and the corresponding hoisting hole, the end part of the connecting bolt is provided with the backstop.
The hoisting method is further improved in that the upper part of the box body is provided with an anti-drop hole;
when the box body is attached to the side part of the pipe joint to be hoisted, the anti-falling holes are aligned with the positioning holes in the pipe joint to be hoisted, and anti-falling pins are inserted into the anti-falling holes and the positioning holes to connect the box body and the pipe joint to be hoisted.
Drawings
FIG. 1 is a front view of a box body of a large-section jacking pipe joint hoisting tool for an urban dense area.
FIG. 2 is a side sectional view of a box body and a connecting bolt of the large-section jacking pipe joint hoisting tool for the urban dense area.
Fig. 3 is a sectional view a-a in fig. 1.
FIG. 4 is a flow chart of the hoisting method of the large-section jacking pipe joint hoisting tool in the urban dense area.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the invention provides a large-section jacking pipe joint hoisting tool for an urban dense area and a hoisting method thereof, which are used for solving the problems that the space size requirement is high, the hoisting tool is easy to conflict with a stopping device, the occupied area is large, the ground land burden is increased and the like in the hoisting of the traditional carrying pole and the roll-over stand. The hoisting hanger disclosed by the invention has the advantages that the hoisting space requirement is small, the site is not occupied, the on-site manufacturing and processing are convenient, the hoisting in a narrow space is facilitated, the space of the hanger and the pipe joint retaining device is not conflicted, the site is not occupied when the hanger is placed on the ground, the pipe joint is convenient to hoist in a smaller and shallower working well, and the construction is convenient. The invention relates to a lifting appliance for lifting large-section jacking pipe joints in urban dense areas and a lifting method thereof.
Referring to fig. 1, a front view of a box body of the large-section pipe jacking pipe joint hoisting tool for the urban dense area is shown. Referring to fig. 2, a side cross-sectional view of the box body and the connecting bolt of the large-section jacking pipe joint hoisting tool for the urban dense area is shown. The hoisting tool for the large-section jacking pipe joints in the urban dense area is described below with reference to fig. 1 and 2.
As shown in fig. 1 and fig. 2, the lifting tool for large-section pipe joints of jacking pipes in urban dense areas comprises a pair of box bodies 21 and connecting bolts 23, wherein lifting lugs 22 are arranged at the tops of the box bodies 21, bolt holes 211 are formed in the box bodies 21, the pair of box bodies 21 can be attached to two opposite sides of the pipe joints to be lifted, and the bolt holes 211 in the box bodies 21 are aligned with the lifting holes in the pipe joints to be lifted; the connecting bolt 23 is used for being inserted into the bolt hole 211 of the box body 21, and after the bolt hole 211 is aligned with a hoisting hole on a pipe joint to be hoisted, the connecting bolt 23 penetrates through the bolt hole 211 and the hoisting hole to connect the box body 21 with the pipe joint to be hoisted. The connection of the lifting appliance and the pipe joint to be lifted is also realized, so that the lifting lug can be connected with lifting equipment to realize the lifting of the pipe joint.
The lifting appliance provided by the invention is composed of a pair of box bodies and a pair of connecting bolts, the box bodies can be attached to the side parts of the pipe joints, the structure is small and exquisite, the manufacturing is easy, the cost can be saved, the ground area is not occupied, and the space is saved. In the hoisting process, by adjusting the plane posture of the pipe joint, the gradual change width of the steel wire rope is utilized to avoid the structure conflict position, so that the smooth hoisting of the pipe joint is ensured, and the hoisting device can be completely suitable for the hoisting environment of a smaller and shallower working well.
In a specific embodiment of the present invention, the width of the box 21 is smaller than the width of the pipe joint to be hoisted, and when the box 21 is attached to the side of the pipe joint to be hoisted, the top elevation of the box 21 is lower than the top elevation of the pipe joint to be hoisted.
The width of the box body 21 is designed to be smaller than that of the pipe joint to be hoisted, so that when the box body 21 is attached to the side part of the pipe joint, the box body 21 can be completely hidden at the side part of the pipe joint without protruding from the front side and the rear side of the pipe joint. The top elevation of the box body 21 is designed to be lower than the top elevation of the pipe joint to be hoisted, the top of the box body 21 is prevented from being exposed from the top of the pipe joint, the box body 21 is hidden at the side part of the pipe joint and is not exposed, and therefore hoisting operation in a narrow space is facilitated.
Further, the bottom elevation of the box body 21 is higher than the bottom elevation of the pipe joint to be hoisted. Preferably, the bottom elevation of the box 21 is higher than the top elevation of the pipe joint retaining device when the pipe joint is hung to the set position, so that the box 21 can avoid the pipe joint retaining device and does not conflict with the pipe joint retaining device in space.
When the box 21 is attached to the side part of the pipe joint, the box 21 is correspondingly arranged at the middle part of the pipe joint, namely the box 21 is small in size, the requirement on hoisting space is reduced, and the hoisting flexibility is improved.
In an embodiment of the present invention, as shown in fig. 3, a stiffener plate 213 is disposed inside the box body 21, and the stiffener plate 213 is connected between two opposite side plates of the box body 21 by means of a top support.
The box body 21 is preferably of a square structure and comprises a top plate, a bottom plate and four side plates, wherein the top plate and the bottom plate are arranged oppositely, and the four side plates are connected to the periphery of the top plate and the bottom plate in a surrounding mode, so that the closed box body 21 is formed. Stiffening plates 213 are connected between the two opposite side plates in a supporting manner, and the overall strength of the box body 21 can be improved by the stiffening plates 213. The box body 21 is internally provided with transverse and longitudinal stiffening plates 213, the end part of each transverse stiffening plate is connected with the longitudinal stiffening plate in a supporting manner, and the transverse stiffening plates at the two sides of the longitudinal stiffening plate are oppositely arranged.
Preferably, the box body 21 is formed by welding steel plates with a thickness of 3cm, and the size of the box body 21 is 1000mm in length, 700mm in width and 300mm in thickness.
In one embodiment of the present invention, as shown in fig. 1, two lifting lugs 22 are provided at both sides of the top of the box body 21. Lifting lugs 22 are welded and fixed on the box body 21, lifting holes are formed in the middle of the lifting lugs 22, lifting ropes penetrate through the lifting holes of the two lifting lugs 22 during lifting, and the stability of the lifting process can be improved through the lifting lugs arranged on the two sides.
In one embodiment of the present invention, as shown in fig. 1, a retaining hole 212 is provided in an upper portion of the case 21. Correspondingly, the pipe joint to be hoisted is correspondingly provided with the positioning hole, when the box body 21 is attached to the side part of the pipe joint to be hoisted, the anti-falling hole 212 is aligned with the positioning hole, and then the anti-falling pin is inserted into the anti-falling hole 212 and the positioning hole to connect the box body 21 and the pipe joint to be hoisted, so that the anti-falling effect is achieved.
Preferably, the anti-disengaging hole 212 is arranged above the bolt hole 211, the bolt hole 211 and the anti-disengaging hole 212 are arranged on the box body 21, the stability of the pipe joint can be improved, and the pipe joint is prevented from shaking in the hoisting process.
Preferably, the latch hole 211 and the escape prevention hole 212 are circular holes. The hoisting hole corresponding to the bolt hole 211 on the pipe joint is a square hole, and the connecting bolt 23 is of a segmented structure and comprises a square bolt section and a circular bolt section.
In order to improve the safety of the hoisting process, a backstop 24 is fixedly connected to the outer end of the connecting bolt 23, the backstop 24 is welded and fixed with the connecting bolt 23, meanwhile, the connecting bolt 23 is welded and fixed with the box body 21, and the connecting bolt 23 and the backstop 24 are prevented from rotating in the hoisting process of the pipe joint.
The invention also provides a hoisting method for the hoisting tool for the large-section jacking pipe joints in the urban dense area, and the hoisting method is explained below.
As shown in FIG. 4, the hoisting method for the hoisting tool for the large-section jacking pipe joints in the urban dense area comprises the following steps:
step S11 is executed, the lifting appliance is provided, a pair of box bodies are attached to two opposite sides of the pipe joint to be lifted, and the bolt holes in the box bodies are aligned with the lifting holes in the pipe joint to be lifted; then, step S12 is executed;
step S12 is executed, and the connecting bolts are inserted into the corresponding bolt holes and the corresponding hoisting holes so as to connect the box body with the pipe joints to be hoisted; then, step S13 is executed;
and S13, providing hoisting equipment, connecting a lifting rope on the hoisting equipment to the corresponding lifting lug, hoisting the pipe joint to be hoisted by using the hoisting equipment, and hoisting the pipe joint to be hoisted to the corresponding position, thereby completing hoisting of the pipe joint.
In a specific embodiment of the present invention, the hoisting method further comprises:
two lifting ropes are arranged on the hoisting equipment, the lifting ropes and the box body are arranged in a one-to-one correspondence mode, and the lifting ropes are connected to lifting lugs of the box body.
The two sides of the pipe joint to be hoisted are respectively provided with the independent lifting ropes, so that the hoisting posture of the pipe joint can be conveniently adjusted, and the pipe joint can conveniently pass through a narrow space.
To the less work well of hoist and mount mouth, utilize the lifting rope to let the tube coupling descend the well along the long limit of well head of work well, treat to utilize the lifting rope to let the tube coupling rotate behind the well head, the end connection of two lifting ropes is in neighbouring position department, and two lifting ropes have constituted triangular shape, and its width reduces gradually, so can let the rotatory return of tube coupling and not take place to touch with the structure of well head, the hoist and mount of smooth completion tube coupling.
In one embodiment of the present invention, as shown in fig. 2, after the connector pins 23 are inserted into the corresponding pin holes 211 and the hanging holes, the retaining members 24 are provided at the ends of the connector pins 23. Preferably, this stopping piece 24 and connecting bolt 23 welded fastening, connecting bolt and box welded fastening simultaneously prevent that connecting bolt and stopping piece from taking place rotatoryly at tube coupling hoist and mount in-process, guarantee hoist and mount in-process tube coupling stability.
Preferably, the connecting pins 23 may be welded and fixed on the box body 21, and when the box body 21 is installed, the connecting pins 23 are inserted into the corresponding hoisting holes on the pipe joints.
In one embodiment of the present invention, as shown in fig. 1, the upper portion of the box body 21 is provided with a retaining hole 212; when the box body 21 is attached to the side part of the pipe joint to be hoisted, the anti-falling holes are aligned with the positioning holes on the pipe joint to be hoisted, and anti-falling pins are inserted into the anti-falling holes 211 and the positioning holes to connect the box body 21 and the pipe joint to be hoisted.
The pipe joint hoisting hanger can be processed and manufactured on site, the space structure of the hanger is reduced, and the hoisting safety of the pipe joint can be ensured. The structure is small and exquisite, easily preparation, saves the cost. The lifting appliance does not occupy ground space, and saves space. The pipe joint is convenient to hoist in a small and shallow working well, the hoisting posture of the pipe joint is flexibly adjusted, and hoisting can be smoothly completed. The lifting appliance is not in conflict with the pipe joint retaining device in space.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.

Claims (9)

1. The utility model provides a big section push pipe tube coupling hoist of city intensive district which characterized in that includes:
the hoisting device comprises a pair of box bodies, lifting lugs are arranged at the tops of the box bodies, bolt holes are formed in the box bodies, the box bodies can be attached to two opposite sides of a pipe joint to be hoisted, and the bolt holes in the box bodies are aligned with hoisting holes in the pipe joint to be hoisted; and
the connecting bolt is inserted into the bolt hole of the box body and penetrates through the bolt hole and the hoisting hole to connect the box body and the pipe joint to be hoisted.
2. The hoisting tool for the large-section jacking pipe joints in the urban dense areas as claimed in claim 1, wherein the width of the box body is smaller than the width of the pipe joints to be hoisted, and when the box body is attached to the side parts of the pipe joints to be hoisted, the top elevation of the box body is lower than the top elevation of the pipe joints to be hoisted.
3. The hoisting tool for the large-section jacking pipe joints in the urban dense area as claimed in claim 1, wherein a stiffening plate is arranged inside the box body, and the stiffening plate is connected between two opposite side plates of the box body through a top support.
4. The hoisting tool for the large-section top pipe joints in the urban dense area as recited in claim 1, wherein the number of the lifting lugs is two, and the two lifting lugs are arranged on two sides of the top of the box body.
5. The hoisting tool for the large-section top pipe joints in the urban dense area as recited in claim 1, wherein the upper part of the box body is provided with an anti-drop hole.
6. A hoisting method for a large-section jacking pipe joint hoisting sling in an urban dense area is characterized by comprising the following steps:
providing a lifting appliance according to any one of claims 1 to 5, attaching the pair of boxes to opposite sides of a pipe section to be lifted, and aligning the bolt holes on the boxes with the lifting holes on the pipe section to be lifted;
inserting connecting bolts into the corresponding bolt holes and the corresponding hoisting holes so as to connect the box body with the pipe joints to be hoisted; and
and providing hoisting equipment, connecting a lifting rope on the hoisting equipment to the corresponding lifting lugs, hoisting the pipe joint to be hoisted by using the hoisting equipment, and hoisting the pipe joint to be hoisted to the corresponding position, thereby completing hoisting of the pipe joint.
7. The hoisting method of claim 6, further comprising:
and arranging two lifting ropes on the hoisting equipment, arranging the lifting ropes and the box body in a one-to-one correspondence manner, and connecting the lifting ropes to lifting lugs of the box body.
8. The hoisting method as claimed in claim 6, wherein a backstop is provided at an end of the connector pin after the connector pin is inserted into the corresponding pin hole and the hoisting hole.
9. The hoisting method according to claim 6, wherein the upper part of the box body is provided with an anti-drop hole;
when the box body is attached to the side part of the pipe joint to be hoisted, the anti-falling holes are aligned with the positioning holes in the pipe joint to be hoisted, and anti-falling pins are inserted into the anti-falling holes and the positioning holes to connect the box body and the pipe joint to be hoisted.
CN202110778111.5A 2021-07-09 2021-07-09 Lifting appliance for large-section jacking pipe joints in urban dense area and lifting method thereof Pending CN113415712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110778111.5A CN113415712A (en) 2021-07-09 2021-07-09 Lifting appliance for large-section jacking pipe joints in urban dense area and lifting method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110778111.5A CN113415712A (en) 2021-07-09 2021-07-09 Lifting appliance for large-section jacking pipe joints in urban dense area and lifting method thereof

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Publication Number Publication Date
CN113415712A true CN113415712A (en) 2021-09-21

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CN202110778111.5A Pending CN113415712A (en) 2021-07-09 2021-07-09 Lifting appliance for large-section jacking pipe joints in urban dense area and lifting method thereof

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004108080A (en) * 2002-09-20 2004-04-08 Clion Co Ltd Lifting tool for panel
CN202785255U (en) * 2012-08-08 2013-03-13 中冶天工上海十三冶建设有限公司 Turnover hoisting tool for reinforced concrete pipe joint
WO2017141005A1 (en) * 2016-02-20 2017-08-24 Blok-Beam Limited Lifting system, beam and method for containers. trailer for containers. connector for containers.
CN206969997U (en) * 2017-07-05 2018-02-06 中国建筑第八工程局有限公司 The hanging apparatus of girder steel
CN209081259U (en) * 2018-11-06 2019-07-09 杭州三阳建设工程有限公司 A kind of suspender for the lifting of rectangle piping lane tube coupling level
CN112340590A (en) * 2020-09-29 2021-02-09 中铁二局集团有限公司 Steel pipe column swivel hoisting device and steel pipe column swivel hoisting method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004108080A (en) * 2002-09-20 2004-04-08 Clion Co Ltd Lifting tool for panel
CN202785255U (en) * 2012-08-08 2013-03-13 中冶天工上海十三冶建设有限公司 Turnover hoisting tool for reinforced concrete pipe joint
WO2017141005A1 (en) * 2016-02-20 2017-08-24 Blok-Beam Limited Lifting system, beam and method for containers. trailer for containers. connector for containers.
CN206969997U (en) * 2017-07-05 2018-02-06 中国建筑第八工程局有限公司 The hanging apparatus of girder steel
CN209081259U (en) * 2018-11-06 2019-07-09 杭州三阳建设工程有限公司 A kind of suspender for the lifting of rectangle piping lane tube coupling level
CN112340590A (en) * 2020-09-29 2021-02-09 中铁二局集团有限公司 Steel pipe column swivel hoisting device and steel pipe column swivel hoisting method

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