CN214989647U - Wind power tower foundation ring hoisting device - Google Patents

Wind power tower foundation ring hoisting device Download PDF

Info

Publication number
CN214989647U
CN214989647U CN202121453162.2U CN202121453162U CN214989647U CN 214989647 U CN214989647 U CN 214989647U CN 202121453162 U CN202121453162 U CN 202121453162U CN 214989647 U CN214989647 U CN 214989647U
Authority
CN
China
Prior art keywords
arm
sub
wind power
power tower
swing
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.)
Active
Application number
CN202121453162.2U
Other languages
Chinese (zh)
Inventor
赵维亚
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.)
Shenzhen Yueruntong Hoisting Transportation Co ltd
Original Assignee
Shenzhen Yueruntong Hoisting Transportation 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 Shenzhen Yueruntong Hoisting Transportation Co ltd filed Critical Shenzhen Yueruntong Hoisting Transportation Co ltd
Priority to CN202121453162.2U priority Critical patent/CN214989647U/en
Application granted granted Critical
Publication of CN214989647U publication Critical patent/CN214989647U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Jib Cranes (AREA)

Abstract

The utility model belongs to the technical field of lifting device's technique and specifically relates to a wind power tower foundation ring overhead hoist is related to, and it includes a basic ring section of thick bamboo and jib, the articulated many support arms that are provided with of bottom lateral wall of jib, be provided with on the jib and be used for driving many respectively support arm wobbling supporting mechanism, many the support arm respectively the butt in the bottom of a basic ring section of thick bamboo, be provided with the spacing subassembly that is used for restricting the removal of a basic ring section of thick bamboo on the support arm. The method and the device have the effect of improving the stability of hoisting the foundation ring of the wind power tower.

Description

Wind power tower foundation ring hoisting device
Technical Field
The application relates to the technical field of hoisting equipment, in particular to a hoisting device for a foundation ring of a wind power tower.
Background
Wind power generation is the most practical renewable energy among the new forms of energy, and wind power tower foundation ring is one of wind power generation equipment main component, nevertheless because wind power tower foundation ring's volume is great, the staff generally uses overhead hoist to hoist wind power tower foundation ring.
The current wind power tower foundation ring hoisting device comprises a foundation ring barrel and a hoisting rope, when the foundation ring barrel needs to be hoisted, a worker firstly fixedly connects one end of the hoisting rope with the foundation ring barrel, then fixedly connects the other end of the hoisting rope with the output end of a mature hoisting device, and the hoisting device hoists the foundation ring barrel through the hoisting rope.
To the correlation technique among the above-mentioned, the inventor thinks that the mode of using the lifting rope handling can lead to the slope after the basic ring section of thick bamboo lifts by crane, is unfavorable for the installation of basic ring section of thick bamboo, and the lifting rope lifts by crane the back simultaneously, and basic ring section of thick bamboo takes place to rock easily, has the potential safety hazard.
SUMMERY OF THE UTILITY MODEL
In order to improve the stability of wind power tower foundation ring handling, this application provides a wind power tower foundation ring overhead hoist.
The application provides a wind power tower foundation ring overhead hoist adopts following technical scheme:
the utility model provides a wind power tower foundation ring overhead hoist, includes a basic ring section of thick bamboo and jib, the bottom lateral wall of jib articulates and is provided with many support arms, be provided with on the jib and be used for driving many respectively support arm wobbling supporting mechanism, many the support arm respectively the butt in the bottom of a basic ring section of thick bamboo, be provided with the spacing subassembly that is used for restricting the removal of a basic ring section of thick bamboo on the support arm.
Through adopting above-mentioned technical scheme, when needs handling basic ring section of thick bamboo, the staff places the jib in the inboard central point of basic ring section of thick bamboo department of putting earlier, then drives many support arms through supporting mechanism and swings towards the direction that is close to basic ring section of thick bamboo, many support arms butt respectively in the bottom of basic ring section of thick bamboo this moment, then the staff carries on spacingly through spacing subassembly to basic ring section of thick bamboo again, the jib is hoisted again to the staff at last, the jib hoists basic ring section of thick bamboo through the support arm, and then be favorable to improving the stability of wind power tower basis ring handling.
Optionally, the limiting assembly comprises a plurality of limiting screw rods and a plurality of limiting nuts, a plurality of perforations are arranged at the top of the supporting arm in a penetrating mode, the limiting screw rods are respectively connected with the perforations in an inserting mode, the limiting screw rods are respectively arranged on the inner side and the outer side of the basic ring barrel in a penetrating mode, and the limiting nuts are respectively connected with the ends of the limiting screw rods in a threaded mode.
Through adopting above-mentioned technical scheme, when needs carry on spacingly to a pair of basic ring section of thick bamboo, the staff earlier places many stop screw respectively in the inboard and the outside of a basic ring section of thick bamboo, then in inserting two of them wearing holes with many stop screw respectively again, screws up in every stop screw's both ends respectively with a plurality of stop nuts at last again, and the basic ring section of thick bamboo is spacing in two relative one sides of stop screw this moment, and then is favorable to improving the spacing stability on the support arm of a basic ring section of thick bamboo.
Optionally, the support arm includes swing sub-arm and flexible sub-arm, swing sub-arm articulated set up in the bottom lateral wall of jib, flexible sub-arm slide set up in the swing sub-arm, the one end of flexible sub-arm runs through swing sub-arm, and extend to outside the lateral wall of swing sub-arm, it is a plurality of the perforation is seted up in the one end of flexible sub-arm, swing sub-arm is provided with and is used for fixing the fixed subassembly of flexible sub-arm.
Through adopting above-mentioned technical scheme, when needs handling basic ring section of thick bamboo, the staff drives flexible sub-arm earlier and removes towards the direction that is close to basic ring section of thick bamboo, and when flexible sub-arm butt in the bottom of basic ring section of thick bamboo, staff's rethread fixed subassembly is fixed flexible sub-arm, and the flexible sub-arm that slides can carry out the handling to the basic ring section of thick bamboo of different diameters, and then is favorable to improving the suitability of support arm.
Optionally, the fixed subassembly includes fixing bolt and fixation nut, fixing bolt set up in one side of the sub-arm of swing, fixing bolt's output runs through in proper order the sub-arm of swing and one of them perforation, and extend to outside the lateral wall of the sub-arm of swing, fixation nut with fixing bolt's output threaded connection.
Through adopting above-mentioned technical scheme, when needs fixed flexible sub-arm, the staff runs through swing sub-arm and one of them perforation in proper order earlier with fixing bolt, then screws up fixation nut again, and flexible sub-arm is fixed in the current position this moment, and then is favorable to improving the stability that flexible sub-arm is fixed in swing sub-arm.
Optionally, the supporting mechanism includes a plurality of connecting arms, a moving block is slidably sleeved on the suspension rod, the plurality of connecting arms are respectively hinged to the side walls of the moving block, one end of each connecting arm departing from the moving block is respectively hinged to the side walls of the plurality of swing sub-arms, and a moving assembly for driving the moving block to ascend and descend is arranged on the suspension rod.
Through adopting above-mentioned technical scheme, when driving the movable block through the removal subassembly and descend, the movable block passes through the linking arm and drives the swing sub-arm towards the direction swing of keeping away from the jib, and when flexible sub-arm carries out the handling to basic ring section of thick bamboo, the linking arm supports the support arm fixed this moment, and then is favorable to improving the stability of support arm swing and handling.
Optionally, the moving assembly includes a moving nut, the side wall of the suspension rod is correspondingly provided with an external thread, the moving nut is arranged below the moving block, the moving nut is in threaded connection with the suspension rod through the external thread, and the suspension rod is provided with an elastic element for driving the moving block to lift in a matching manner.
Through adopting above-mentioned technical scheme, when the staff rotated the removal nut along vertical decurrent direction, under the mating reaction of elastic component, the movable block moved down, and the movable block supported tightly in the top of removal nut, when the staff rotated the removal nut along vertical ascending direction, the removal nut drove the movable block and rises this moment, and then was favorable to improving the stability that the movable block goes up and down.
Optionally, the elastic member is a spring, the suspension rod is annularly provided with a fixed block, the fixed block is arranged above the moving block, the spring is sleeved on the suspension rod, one end of the spring is connected with the bottom of the fixed block, the other end of the spring is connected with the top of the moving block, and when the spring is in a natural state, the moving block abuts against the top of the moving block.
Through adopting above-mentioned technical scheme, when the removal nut drives the movable block and rises, movable block hold-down spring, when the removal nut descends, the removal spring resumes natural state this moment, and the removal spring resets and drives the movable block and descends, and the movable block supports tightly in adjusting nut's top this moment, and then is favorable to improving the stability that the movable block goes up and down.
Optionally, a limiting block is arranged on the suspension rod, and the limiting block is arranged below the movable nut.
Through adopting above-mentioned technical scheme, when removing the nut butt when the top of stopper, the support arm is the level setting this moment, and under the effect of stopper, is favorable to improving the stability of support arm handling basic ring section of thick bamboo.
To sum up, the application comprises the following beneficial technical effects:
when needs handling basic ring section of thick bamboo, the staff places the jib in the inboard central point of a basic ring section of thick bamboo department of putting earlier, then drives many support arms through supporting mechanism and swings towards the direction that is close to basic ring section of thick bamboo, many support arms butt respectively in the bottom of basic ring section of thick bamboo this moment, the staff carries on spacingly through spacing subassembly to basic ring section of thick bamboo again after that, the jib is hoisted again to last staff, the jib hoists basic ring section of thick bamboo through the support arm, and then be favorable to improving the stability of wind power tower basis ring handling.
Drawings
FIG. 1 is a schematic overall structure diagram of a wind power tower foundation ring lifting device.
Fig. 2 is a schematic view of the overall structure of the lifting device of the present application.
Description of reference numerals: 1. a base ring cylinder; 2. a boom; 21. a hoisting ring; 22. an external thread; 23. a fixed block; 24. a limiting block; 3. a support arm; 31. a swing sub-arm; 32. a telescopic sub-arm; 33. perforating; 4. a connecting arm; 41. a moving block; 5. moving the nut; 6. a spring; 7. fixing the bolt; 71. fixing a nut; 8. a limit screw; 81. and a limiting nut.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
Example (b):
referring to fig. 1, a wind power tower foundation ring lifting device comprises a foundation ring cylinder 1 and a hanger rod 2. The base ring cylinder 1 is cylindrical, and the base ring cylinder 1 is horizontally placed on the ground through a wood mat. The suspender 2 is vertically arranged, and the vertical central axis of the suspender 2 coincides with the axis of the base annular cylinder 1. A hanging ring 21 is fixed at the top of the hanging rod 2, a supporting arm 3 is hinged to the outer side of the bottom end of the hanging rod 2, the supporting arm 3 is used for supporting the bottom of the foundation ring cylinder 1 and hanging the foundation ring cylinder 1 at the same time, and the length of the supporting arm 3 is long enough.
The quantity of support arm 3 is equipped with three, and three support arms 3 are the annular array distribution along the vertical axis direction of jib 2 respectively, and are provided with on the jib 2 to be used for driving three support arms 3 simultaneously and swing supporting mechanism towards the direction that is close to or keeps away from jib 2. The supporting arm 3 is provided with a limiting component for preventing the base ring cylinder 1 from being separated from the supporting arm 3.
Specifically, referring to fig. 2, the supporting mechanism includes a connecting arm 4, a moving block 41 slidably sleeved on the suspension rod 2, and a moving component for driving the moving block 41 to move up and down. Three corresponding connecting arms 4 that are equipped with of quantity of linking arm 4, three connecting arms 4 set up respectively outside the lateral wall of moving block 41, and three connecting arms 4 are along the vertical axis of moving block 41 and be annular array distribution. One end of each of the three connecting arms 4 is hinged to the side wall of the moving block 41, and the other end of each of the three connecting arms 4 is hinged to each of the three supporting arms 3.
Specifically, referring to fig. 2, the moving assembly includes a moving nut 5, the outer side wall of the suspension rod 2 is correspondingly provided with an external thread 22, the moving nut 5 is located at the bottom of the moving block 41, and the moving nut 5 is in threaded connection with the suspension rod 2 through the external thread 22.
Referring to fig. 2, in order to cooperate with the moving nut 5 to drive the moving block 41 to move up and down, the suspension rod 2 is provided with an elastic member, and the elastic member is a spring 6. The side wall fixing ring of the suspension rod 2 is provided with a fixing block 23, and the fixing block 23 is positioned above the top of the moving block 41. The suspension rod 2 is sleeved with the spring 6, the spring 6 is located at the bottom of the fixing block 23, one end of the spring 6 is fixedly connected with the bottom of the fixing block 23, and the other end of the spring 6 is fixedly connected with the top of the moving block 41.
When the worker rotates the moving nut 5 in the vertical upward direction, the moving nut 5 drives the moving block 41 to ascend, the moving block 41 drives the supporting arm 3 to swing in the direction close to the suspension rod 2 through the connecting arm 4, and the moving block 41 presses the spring 6. When the worker rotates the movable nut 5 in the vertical downward direction, the spring 6 is restored to the natural state, the spring 6 resets and drives the movable block 41 to descend in the direction close to the adjusting nut, the movable block 41 abuts against the top of the movable nut 5 at the moment, and the movable block 41 drives the supporting arm 3 to swing in the direction far away from the suspender 2 through the connecting arm 4.
It should be noted that, referring to fig. 2, in order to improve the stability of the supporting arm 3 supporting the base ring barrel 1, a limiting block 24 is fixedly disposed on the suspension rod 2, and the limiting block 24 is located below the movable nut 5. When the movable nut 5 abuts against the top of the stopper 24, the support arm 3 is horizontally disposed at this time.
Referring to fig. 2, in order to increase the application range of the connecting arm 4, so that the connecting arm 4 can hoist the base ring cylinders 1 with different diameters, the connecting arm 4 comprises a swinging sub-arm 31 and a telescopic sub-arm 32. The swing sub-arm 31 is disposed at one side of the bottom end of the suspension rod 2, one end of the swing sub-arm 31 is hinged to the suspension rod 2, and the other end of the swing sub-arm 31 is a free end. One end of the connecting arm 4 departing from the moving block 41 is hinged to the free end of the swinging sub-arm 31, and the free end of the swinging sub-arm 31 is open. The telescopic sub-arm 32 slides in the swing sub-arm 31, and one end of the telescopic sub-arm 32, which is far away from the suspension rod 2, penetrates through the swing sub-arm 31 and extends out of the open end of the swing sub-arm 31. One end of the telescopic sub-arm 32 departing from the suspension rod 2 abuts against the bottom of the base ring barrel 1, and the swinging sub-arm 31 is provided with a fixing component for fixing the telescopic sub-arm 32.
Specifically, referring to fig. 2, the fixing assembly includes a fixing bolt 7 and a fixing nut 71. A through hole 33 is formed through the telescopic sub-arm 32 on the side away from the swing sub-arm 31, and the through hole 33 is formed in the thickness direction of the telescopic sub-arm 32. The number of the through holes 33 is plural, and the plural through holes 33 are respectively distributed in a linear array along the length direction of the telescopic sub-arm 32. The fixing bolt 7 is disposed on one side of the free end of the swing sub-arm 31, an output end of the fixing bolt 7 sequentially penetrates through the swing sub-arm 31 and one of the through holes 33, and extends to the outside of the side wall of the swing sub-arm 31, and the fixing nut 71 is in threaded connection with the output end of the fixing bolt 7.
Specifically, referring to fig. 2, the limiting assembly includes a limiting screw 8 and a limiting nut 81. Two limit screws 8 are correspondingly arranged on each telescopic sub-arm 32, one limit screw 8 is positioned on one side, facing the suspender 2, of the basic ring barrel 1, and the other limit screw 8 is positioned on one side, facing away from the suspender 2, of the basic ring barrel 1. One end of each of the two limit screws 8 is inserted into one of the two through holes 33, and one end of each of the two limit screws 8 penetrates through the two through holes 33 and extends out of the bottom of the telescopic sub-arm 32. Each limit screw 8 is correspondingly provided with two limit nuts 81, and the two limit nuts 81 are respectively in threaded connection with two ends of each limit screw 8.
When the staff respectively tighten the limit nuts 81, the base ring barrel 1 is limited to the opposite side of the two limit screws 8.
The working principle of the wind power tower foundation ring lifting device is as follows:
when needs handling basic ring section of thick bamboo 1, the staff places jib 2 in the intermediate position department of basic ring section of thick bamboo 1 earlier, then rotates removal nut 5 along vertical decurrent direction again, and to removing nut 5 butt in the top of stopper 24, spring 6 resumes natural state and drives movable block 41 decline, and movable block 41 drives the direction swing of keeping away from jib 2 of support arm 3 through linking arm 4, and support arm 3 is the level setting this moment.
Then, the worker pulls out the telescopic sub-arm 32 in a direction away from the boom 2 until the telescopic sub-arm 32 abuts on the bottom of the base ring barrel 1, and simultaneously, the worker tightens the fixing bolt 7 and the fixing nut 71, at which time the telescopic sub-arm 32 is fixed in the swing sub-arm 31. The worker then inserts the limit screws 8 into the through holes 33, respectively, while tightening the limit nuts 81.
Finally, the worker uses mature hoisting equipment to lift the suspension rod 2 through the hoisting ring 21, and the suspension rod 2 finally lifts the foundation ring barrel 1 through the supporting arm 3.
To sum up, under the effect of support arm 3 and spacing subassembly, and then be favorable to improving the stability of wind power tower basis ring handling.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a wind power tower foundation ring overhead hoist which characterized in that: including basic ring section of thick bamboo (1) and jib (2), the bottom lateral wall of jib (2) articulates and is provided with many support arms (3), be provided with on jib (2) and be used for driving many respectively support arm (3) wobbling supporting mechanism, many support arm (3) respectively the butt in the bottom of basic ring section of thick bamboo (1), be provided with the spacing subassembly that is used for restricting basic ring section of thick bamboo (1) and removes on support arm (3).
2. The wind power tower foundation ring lifting device of claim 1, wherein: the limiting assembly comprises a plurality of limiting screw rods (8) and a plurality of limiting nuts (81), a plurality of perforations (33) are arranged at the top of the supporting arm (3) in a penetrating mode, and the limiting screw rods (8) are connected with the perforations (33) in a plugging mode, and the limiting screw rods (8) are arranged on the inner side and the outer side of the basic ring barrel (1) respectively and are multiple, and the limiting nuts (81) are connected with the ends of the limiting screw rods (8) in a threaded mode.
3. The wind power tower foundation ring lifting device as claimed in claim 2, wherein: support arm (3) are including swing sub-arm (31) and flexible sub-arm (32), swing sub-arm (31) articulated set up in the bottom lateral wall of jib (2), flexible sub-arm (32) slide set up in swing sub-arm (31), the one end of flexible sub-arm (32) is run through swing sub-arm (31), and extend to outside the lateral wall of swing sub-arm (31), it is a plurality of perforation (33) are seted up in the one end of flexible sub-arm (32), swing sub-arm (31) are provided with and are used for fixing the fixed subassembly of flexible sub-arm (32).
4. The wind power tower foundation ring lifting device as claimed in claim 3, wherein: the fixing assembly comprises a fixing bolt (7) and a fixing nut (71), the fixing bolt (7) is arranged on one side of the swing sub-arm (31), the output end of the fixing bolt (7) sequentially penetrates through the swing sub-arm (31) and one of the swing sub-arm and the swing sub-arm to penetrate through the through hole (33) and extend to the outside of the side wall of the swing sub-arm (31), and the fixing nut (71) is in threaded connection with the output end of the fixing bolt (7).
5. The wind power tower foundation ring lifting device as claimed in claim 3, wherein: the supporting mechanism comprises a plurality of connecting arms (4), a moving block (41) is slidably sleeved on the suspension rod (2), the connecting arms (4) are hinged to the side walls of the moving block (41), one ends, deviating from the moving block (41), of the connecting arms (4) are hinged to the side walls of the swinging sub-arms (31), and a moving assembly used for driving the moving block (41) to ascend and descend is arranged on the suspension rod (2).
6. The wind power tower foundation ring lifting device of claim 5, wherein: the moving assembly comprises a moving nut (5), external threads (22) are correspondingly arranged on the side wall of the suspension rod (2), the moving nut (5) is arranged below the moving block (41), the moving nut (5) is in threaded connection with the suspension rod (2) through the external threads (22), and an elastic piece used for driving the moving block (41) to lift in a matched mode is arranged on the suspension rod (2).
7. The wind power tower foundation ring lifting device of claim 6, wherein: the elastic piece is a spring (6), a fixing block (23) is arranged on the suspension rod (2) in a surrounding mode, the fixing block (23) is arranged above the moving block (41), the suspension rod (2) is sleeved with the spring (6), one end of the spring (6) is connected with the bottom of the fixing block (23), the other end of the spring (6) is connected with the top of the moving block (41), and when the spring (6) is in a natural state, the moving block (41) abuts against the top of the moving block (41).
8. The wind power tower foundation ring lifting device of claim 6, wherein: and a limiting block (24) is annularly arranged on the suspender (2), and the limiting block (24) is arranged below the movable nut (5).
CN202121453162.2U 2021-06-28 2021-06-28 Wind power tower foundation ring hoisting device Active CN214989647U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121453162.2U CN214989647U (en) 2021-06-28 2021-06-28 Wind power tower foundation ring hoisting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121453162.2U CN214989647U (en) 2021-06-28 2021-06-28 Wind power tower foundation ring hoisting device

Publications (1)

Publication Number Publication Date
CN214989647U true CN214989647U (en) 2021-12-03

Family

ID=79103714

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121453162.2U Active CN214989647U (en) 2021-06-28 2021-06-28 Wind power tower foundation ring hoisting device

Country Status (1)

Country Link
CN (1) CN214989647U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116768021A (en) * 2023-08-24 2023-09-19 山西宝龙达锻造股份有限公司 Hoisting equipment special for flange

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116768021A (en) * 2023-08-24 2023-09-19 山西宝龙达锻造股份有限公司 Hoisting equipment special for flange
CN116768021B (en) * 2023-08-24 2023-11-07 山西宝龙达锻造股份有限公司 Hoisting equipment special for flange

Similar Documents

Publication Publication Date Title
CN103715633B (en) Strain insulator single hole yoke plate replacing insulator string method
CN214989647U (en) Wind power tower foundation ring hoisting device
CN201673793U (en) Hoisting bracket for on-load voltage regulation switch of transformer
CN113148860B (en) Multifunctional pole hoisting device
CN210031529U (en) Automatic climbing platform for construction of hanging cable
CN216957646U (en) Pole-mounted transformer mounting device
CN217555571U (en) Multifunctional hoisting device for hoisting materials on electric pole
CN103318745A (en) Lightweight special-purposed spreader and mounting method thereof
CN213445762U (en) Assembled building element hoist device
CN217323043U (en) Anti-drop coaster
CN215101506U (en) Hoist device that intelligence building was used
CN213597518U (en) Crossbeam steel construction
CN212454372U (en) Non-beam type oil pumping machine unloading device
CN214989699U (en) Wind-powered electricity generation anchor slab flange hoist and mount frock
CN209872184U (en) Automatic jacking and positioning device for standard knot of tower crane
CN207794753U (en) A kind of Electronics and Information Engineering communication tower for driving birds
CN221009777U (en) Cable terminal platform
CN208202749U (en) It is a kind of meteorology used in base station antenna can illuminate electric pole
CN216332596U (en) Delta anchor suspension device of offshore wind power platform
CN207673022U (en) A kind of new type of light gauge steel composite concrete wallboard hanging apparatus
CN205973588U (en) Simple and easy immersible pump hoisting device
CN213356759U (en) Attached lifting material platform
CN104495635A (en) Hoisting apparatus for construction of 220 KV power transmission line cat-head type tower
CN110593112A (en) Suspension bridge hanging beam system and hanging beam process
CN220393080U (en) Coiled material lifts by crane material loading machine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant