CN218619990U - Anti-tipping device of suspension crane - Google Patents

Anti-tipping device of suspension crane Download PDF

Info

Publication number
CN218619990U
CN218619990U CN202223063383.6U CN202223063383U CN218619990U CN 218619990 U CN218619990 U CN 218619990U CN 202223063383 U CN202223063383 U CN 202223063383U CN 218619990 U CN218619990 U CN 218619990U
Authority
CN
China
Prior art keywords
telescopic
connecting seat
fixedly connected
telescopic rod
base
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
CN202223063383.6U
Other languages
Chinese (zh)
Inventor
王东
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.)
Dalian Shengwang Electric Technology Co ltd
Original Assignee
Dalian Shengwang Electric Technology 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 Dalian Shengwang Electric Technology Co ltd filed Critical Dalian Shengwang Electric Technology Co ltd
Priority to CN202223063383.6U priority Critical patent/CN218619990U/en
Application granted granted Critical
Publication of CN218619990U publication Critical patent/CN218619990U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Jib Cranes (AREA)

Abstract

The utility model relates to the technical field of cranes, in particular to a suspension crane anti-tipping device which prevents equipment from tipping during hoisting to cause installation accidents, improves the stability of the equipment, improves the application range of the equipment and improves the practicability; the lifting mechanism comprises a left base, a left upright post, a right base, a right upright post and a lifting mechanism, wherein the bottom of the left upright post is fixedly connected to the top end of the middle part of the left base, the bottom of the right upright post is fixedly connected to the top end of the middle part of the right base, and two ends of the lifting mechanism are respectively arranged at the top ends of the left upright post and the right upright post; still include adjustment mechanism and top tight mechanism, adjustment mechanism includes first adjusting cylinder, second adjusting cylinder, first fixing base, first telescopic link, second fixing base and second telescopic link, and adjustment mechanism installs respectively on the top of left stand and right stand, and elevating system installs on adjustment mechanism, and the tight mechanism in top is installed respectively on the lateral wall of left stand and right stand, fixes left stand and right stand.

Description

Anti-tipping device of suspension crane
Technical Field
The utility model relates to a technical field of hoist especially relates to a suspension crane anti-overturning device.
Background
The suspension crane is completely called a flexible light combined suspension crane, belongs to light and small-sized hoisting equipment, can be simply suspended on a building roof or an upper structure, a crane track does not need additional auxiliary support, and can be simply and reliably installed no matter part or all of the suspension crane serving a workshop, the cost is lower, and due to the advantages of the suspension crane, the suspension crane is also very wide in application on the market, a lifting hook of the crane moves through a suspension beam when in use, if the goods are overweight, the stress at two ends of the suspension beam is uneven, the stability of partial goods cannot be ensured when the goods are hoisted to a certain height, and the safety accidents caused by overturning are easily caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a prevent that equipment from tumbling when hoist and mount and causing the incident, improve equipment's stability, improve equipment's application range improves the overhead crane anti-overturning device of practicality.
The utility model discloses a suspension crane anti-overturning device, including left base, left stand, right base, right stand and elevating system, the bottom fixed connection of left stand is on the middle part top of left base, the bottom fixed connection of right stand is on the middle part top of right base, the both ends of elevating system are installed respectively on the top of left stand and right stand; the lifting mechanism is arranged on the adjusting mechanism, and the jacking mechanisms are respectively arranged on the outer side walls of the left stand column and the right stand column to fix the left stand column and the right stand column; through adjustment mechanism's height of adjusting elevating system, make equipment be applicable to the not goods of hoist and mount co-altitude, improve equipment's application range improves the practicality, supports fixedly through the tight mechanism in top to left stand and right stand, prevents that equipment from tumbling when hoist and causing the incident, improve equipment's stability.
Preferably, the adjusting mechanism comprises a first adjusting oil cylinder, a second adjusting oil cylinder, a first fixing seat, a first telescopic rod, a second fixing seat and a second telescopic rod, the first adjusting oil cylinder is fixedly installed at the top end of the left upright post, the second adjusting oil cylinder is fixedly installed at the top end of the right upright post, the first adjusting oil cylinder and the second adjusting oil cylinder are respectively connected with the bottom end of the lifting mechanism, the first fixing seat is fixedly installed on the outer side wall of the left upright post, the bottom end of the first telescopic rod is rotatably installed on the first fixing seat, the telescopic end of the first telescopic rod is obliquely installed at the bottom end of the lifting mechanism, the second fixing seat is fixedly installed on the outer side wall of the right upright post, the bottom end of the second telescopic rod is rotatably installed on the second fixing seat, the telescopic end of the second telescopic rod is obliquely installed at the bottom end of the lifting mechanism, and the first telescopic rod and the second telescopic rod are symmetrically arranged; start first regulation hydro-cylinder and second regulation hydro-cylinder, drive elevating system rebound, hoist and mount the goods of co-altitude not, application scope is improved, first telescopic link and second telescopic link are started to the time that elevating system rises, first telescopic link and second telescopic link and elevating system and left stand, form the triangle-shaped structure between the right stand, it is fixed to support elevating system through first telescopic link and second telescopic link when moving about elevating system drives the goods, prevent that elevating system from damaging, influence work efficiency, and the practicality is improved.
Preferably, the lifting mechanism comprises a cross beam, a trolley type electric hoist and a lifting hook, two ends of the bottom of the cross beam are respectively connected with the top ends of the first adjusting oil cylinder and the second adjusting oil cylinder, the telescopic ends of the first telescopic rod and the second telescopic rod are symmetrically installed at the bottom end of the cross beam, a guide rail is arranged at the bottom end of the cross beam, the trolley type electric hoist is movably connected onto the guide rail, and the lifting hook is installed at the bottom of the trolley type electric hoist; after hanging the goods and adorning on the lifting hook, start trolley formula electric block and hoist the goods, can make trolley formula electric block drive the goods through the guide rail and remove about, change the goods position, improve the practicality, the overweight protection of trolley formula electric block area simultaneously improves the security of equipment when in service.
Preferably, the jacking mechanism comprises a left connecting seat, a right connecting seat, a plurality of first hydraulic cylinders, a plurality of second hydraulic cylinders and a telescopic mechanism, wherein vertical guide holes are formed in the middle parts of the left connecting seat and the right connecting seat, the guide hole of the left connecting seat is vertically and movably connected to the lower side of the outer part of the left upright column, the guide hole of the right connecting seat is vertically and movably connected to the lower side of the outer part of the right upright column, the bottoms of the first hydraulic cylinders are uniformly and fixedly connected to the periphery of the top end of the left base, the ends of the upper piston rods of the first hydraulic cylinders are fixedly connected to the periphery of the bottom surface of the left connecting seat, the bottoms of the second hydraulic cylinders are uniformly and fixedly connected to the periphery of the top end of the right base, the ends of the upper piston rods of the second hydraulic cylinders are fixedly connected to the periphery of the bottom surface of the right connecting seat, the telescopic mechanism is multiple, and the telescopic mechanism is obliquely and fixedly connected to the four corners of the bottoms of the left connecting seat and the right connecting seat; through first pneumatic cylinder and second pneumatic cylinder, can highly adjusting left connecting seat and right connecting seat to satisfied the needs that left stand and right stand different positions supported the protection, improved the protecting effect when using, telescopic machanism has ensured the stability and the reliability that left stand and right stand supported, the phenomenon of tumbling appears when having avoided using.
Preferably, the telescopic mechanism comprises a bottom plate, a support, a guide sleeve rod, a telescopic arm and a third hydraulic cylinder, the support is fixedly connected with the center of the top end of the bottom plate, a guide groove is formed in the guide sleeve rod, the telescopic arm is movably connected in the guide groove, the lower end of the telescopic arm is hinged with the top end of the support, the top of the third hydraulic cylinder is fixedly connected with the center of the top surface of the guide groove, a connecting hole is formed in the middle of the upper side of the telescopic arm, and the end part of a piston rod at the lower end of the third hydraulic cylinder is fixedly connected with the bottom surface of the connecting hole; the third pneumatic cylinder is started, the telescopic arm is driven to extend out through the extension of the third pneumatic cylinder, the telescopic arm is hinged to the bottom plate through the support, the bottom plate is firmly propped on the ground, the stability and the reliability supported by the left stand column and the right stand column are ensured through the cooperation of the plurality of bottom plates, the phenomenon of tipping when the device is used is avoided, and the stability and the reliability of the whole operation of the device are improved.
Preferably, the anti-skid device further comprises a plurality of anti-skid pads, and the plurality of anti-skid pads are respectively arranged at the bottom end of the bottom plate; the friction force between the bottom plate and the ground is increased through the anti-slip pad, and the stability of the bottom plate for supporting the equipment is further improved.
Compared with the prior art, the beneficial effects of the utility model are that: through adjustment mechanism's height of adjusting elevating system, make equipment be applicable to the not goods of hoist and mount co-altitude, improve equipment's application range improves the practicality, supports fixedly through the tight mechanism in top to left stand and right stand, prevents that equipment from tumbling when hoist and causing the incident, improve equipment's stability.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic top view of the present invention;
FIG. 3 is an enlarged schematic view of the base plate and the stand;
FIG. 4 is a schematic sectional view of the telescopic arm and the third hydraulic cylinder;
in the drawings, the reference numbers: 1. a left base; 2. a left upright post; 3. a right base; 4. a right upright post; 5. a first adjusting oil cylinder; 6. a second adjusting oil cylinder; 7. a first fixed seat; 8. a first telescopic rod; 9. a second fixed seat; 10. a second telescopic rod; 11. a cross beam; 12. a guide rail; 13. a trolley type electric hoist; 14. a hook; 15. a left connecting seat; 16. a right connecting seat; 17. a first hydraulic cylinder; 18. a second hydraulic cylinder; 19. a base plate; 20. a support; 21. a guide sleeve rod; 22. a guide groove; 23. a telescopic arm; 24. a third hydraulic cylinder; 25. a non-slip mat.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As shown in fig. 1 and 2, the adjusting mechanism includes a first adjusting cylinder 5, a second adjusting cylinder 6, a first fixing seat 7, a first telescopic rod 8, a second fixing seat 9 and a second telescopic rod 10, the first adjusting cylinder 5 is fixedly installed at the top end of the left upright post 2, the second adjusting cylinder 6 is fixedly installed at the top end of the right upright post 4, the first adjusting cylinder 5 and the second adjusting cylinder 6 are respectively connected with the bottom end of the lifting mechanism, the first fixing seat 7 is fixedly installed on the outer side wall of the left upright post 2, the bottom end of the first telescopic rod 8 is rotatably installed on the first fixing seat 7, the telescopic end of the first telescopic rod 8 is obliquely installed at the bottom end of the lifting mechanism, the second fixing seat 9 is fixedly installed on the outer side wall of the right upright post 4, the bottom end of a second telescopic rod 10 is rotatably mounted on a second fixed seat 9, the telescopic end of the second telescopic rod 10 is obliquely mounted at the bottom end of a lifting mechanism, a first telescopic rod 8 and the second telescopic rod 10 are symmetrically arranged, the lifting mechanism comprises a cross beam 11, a trolley type electric hoist 13 and a lifting hook 14, two ends of the bottom of the cross beam 11 are respectively connected with the top ends of a first adjusting oil cylinder 5 and a second adjusting oil cylinder 6, the telescopic ends of the first telescopic rod 8 and the second telescopic rod 10 are symmetrically mounted at the bottom end of the cross beam 11, a guide rail 12 is arranged at the bottom end of the cross beam 11, the trolley type electric hoist 13 is movably connected onto the guide rail 12, and the lifting hook 14 is mounted at the bottom of the trolley type electric hoist 13;
start first regulation hydro-cylinder 5 and second regulation hydro-cylinder 6, drive elevating system rebound, hoist the goods of co-altitude not, improve application scope, elevating system rises and starts first telescopic link 8 and second telescopic link 10 simultaneously, first telescopic link 8 and second telescopic link 10 and elevating system and left stand 2, form the triangle-shaped structure between the right stand 4, it is fixed to support elevating system through first telescopic link 8 and second telescopic link 10 when elevating system drives the goods and removes, prevent that elevating system from damaging, influence work efficiency, improve the practicality, after hanging the goods on lifting hook 14, start trolley type electric block 13 and hoist the goods, can make trolley type electric block 13 drive the goods through guide rail 12 and remove about, change the goods position, improve the practicality, trolley type electric block 13 takes overweight protection simultaneously, security when improving the equipment practicality.
As shown in fig. 1, 3 and 4, the tightening mechanism includes a left connecting seat 15, a right connecting seat 16, a plurality of first hydraulic cylinders 17, a plurality of second hydraulic cylinders 18 and a telescopic mechanism, wherein vertical guide holes are respectively formed in the middle portions of the left connecting seat 15 and the right connecting seat 16, the guide hole of the left connecting seat 15 is vertically movably connected to the lower side of the outer portion of the left upright post 2, the guide hole of the right connecting seat 16 is vertically movably connected to the lower side of the outer portion of the right upright post 4, the bottoms of the first hydraulic cylinders 17 are uniformly and fixedly connected to the periphery of the top end of the left base 1, the ends of the upper piston rods of the first hydraulic cylinders 17 are uniformly and fixedly connected to the periphery of the bottom surface of the left connecting seat 15, the bottoms of the second hydraulic cylinders 18 are uniformly and fixedly connected to the periphery of the top end of the right base 3, the upper piston rod ends of the second hydraulic cylinders 18 are fixedly connected with the periphery of the bottom surface of the right connecting seat 16, the number of telescopic mechanisms is multiple, the telescopic mechanisms are obliquely and fixedly connected to the four corners of the bottoms of the left connecting seat 15 and the right connecting seat 16, each telescopic mechanism comprises a bottom plate 19, a support 20, a guide sleeve rod 21, a telescopic arm 23 and a third hydraulic cylinder 24, the support 20 is fixedly connected to the center of the top end of the bottom plate 19, a guide groove 22 is formed in the guide sleeve rod 21, the telescopic arm 23 is movably connected to the guide groove 22, the lower end of the telescopic arm 23 is hinged to the top end of the support 20, the top of the third hydraulic cylinder 24 is fixedly connected to the center of the top surface of the guide groove 22, a connecting hole is formed in the middle of the upper side of the telescopic arm 23, the lower piston rod end of the third hydraulic cylinder 24 is fixedly connected with the bottom surface of the connecting hole, the upper piston rod ends of the lower ends of the third hydraulic cylinders are further provided with a plurality of anti-skid pads 25, and the anti-skid pads 25 are respectively installed at the bottom end of the bottom plate 19;
through first pneumatic cylinder 17 and second pneumatic cylinder 18, can adjust the height of left connecting seat 15 and right connecting seat 16, thereby left stand 2 and the not different positions of right stand 4 support the needs of protection have been satisfied, the protecting effect when using has been improved, telescopic machanism has ensured the stability and the reliability that left stand 2 and right stand 4 supported, the phenomenon of tumbling appears when having avoided using, start third pneumatic cylinder 24, extension through third pneumatic cylinder 24 drives telescopic boom 23 and stretches out, telescopic boom 23 is articulated with bottom plate 19 through support 20, make the top of bottom plate 19 firmly tightly subaerial, cooperate through a plurality of bottom plates 19, the stability and the reliability that left stand 2 and right stand 4 supported have been ensured, the phenomenon of tumbling appears when having avoided using, the stability and the reliability of device overall operation have been improved, increase the frictional force of bottom plate 19 and ground through slipmat 25, further improve the stability of bottom plate 19 to equipment support.
As shown in fig. 1 to 4, the utility model discloses a suspension crane anti-overturning device, it is at the during operation, according to actual need through first pneumatic cylinder 17 and second pneumatic cylinder 18, highly adjust left connecting seat 15 and right connecting seat 16, thereby adjust the support protection position of left stand 2 and right stand 4, later start third pneumatic cylinder 24, extension through third pneumatic cylinder 24 drives telescopic boom 23 and stretches out, make the top of bottom plate 19 firmly subaerial, through the cooperation of a plurality of bottom plates 19, ensure the stability and the reliability that left stand 2 and right stand 4 supported, then start first adjusting cylinder 5 and second adjusting cylinder 6 as required, drive elevating system rebound, adjust the height of crossbeam 11, then after with goods hanging dress to lifting hook 14, start trolley formula electric block 13 and hoist the goods, it removes to control to make trolley formula electric block 13 drive the goods through guide rail 12, it can to hoist the assigned position.
The utility model discloses the main function who realizes does: 1. the third hydraulic cylinder 24 can be extended to enable the bottom plate 19 to be firmly propped against the ground by arranging the telescopic mechanism, so that the stability and the reliability of the support of the left upright post 2 and the right upright post 4 are ensured, and the phenomenon of tipping is avoided during use;
2. by arranging the first hydraulic cylinder 17 and the second hydraulic cylinder 18, the heights of the left connecting seat 15 and the right connecting seat 16 can be adjusted, so that the requirements of supporting and protecting different positions of the left upright post 2 and the right upright post 4 are met, and the protection effect in use is improved;
3. through the first telescopic link 8 and the second telescopic link 10 that set up to guarantee crossbeam 11 and left stand 2 and right stand 4 fixed connection's reliability and stability, improved the stability and the reliability of the whole operation of device.
The anti-tipping device of the suspension crane of the utility model has the advantages that the installation mode, the connection mode or the setting mode are common mechanical modes, and the anti-tipping device can be implemented as long as the beneficial effects can be achieved; the first adjusting cylinder 5, the second adjusting cylinder 6, the first hydraulic cylinder 17, the second hydraulic cylinder 18 and the third hydraulic cylinder 24 are driven by hydraulic means.
All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (6)

1. A tipping prevention device for a suspension crane comprises a left base (1), a left upright (2), a right base (3), a right upright (4) and a lifting mechanism, wherein the bottom of the left upright (2) is fixedly connected to the top end of the middle part of the left base (1), the bottom of the right upright (4) is fixedly connected to the top end of the middle part of the right base (3), and two ends of the lifting mechanism are respectively installed at the top ends of the left upright (2) and the right upright (4); the lifting mechanism is arranged on the adjusting mechanism, and the jacking mechanism is arranged on the outer side walls of the left stand column (2) and the right stand column (4) respectively to fix the left stand column (2) and the right stand column (4).
2. The anti-tipping device for the suspended crane according to claim 1, wherein the adjusting mechanism comprises a first adjusting oil cylinder (5), a second adjusting oil cylinder (6), a first fixing seat (7), a first telescopic rod (8), a second fixing seat (9) and a second telescopic rod (10), the first adjusting oil cylinder (5) is fixedly installed at the top end of the left upright (2), the second adjusting oil cylinder (6) is fixedly installed at the top end of the right upright (4), the first adjusting oil cylinder (5) and the second adjusting oil cylinder (6) are respectively connected with the bottom end of the lifting mechanism, the first fixing seat (7) is fixedly installed on the outer side wall of the left upright (2), the bottom end of the first telescopic rod (8) is rotatably installed on the first fixing seat (7), the telescopic end of the first telescopic rod (8) is obliquely installed at the bottom end of the lifting mechanism, the second fixing seat (9) is fixedly installed on the outer side wall of the right upright (4), the bottom end of the second telescopic rod (10) is rotatably installed on the second fixing seat (9), the telescopic end of the second telescopic rod (10) is obliquely installed at the bottom end of the lifting mechanism, and the first telescopic rod (8) and the second telescopic rod (10) and the second telescopic rod (10) are symmetrically arranged.
3. The anti-tipping device for the suspended crane as claimed in claim 2, wherein the lifting mechanism comprises a cross beam (11), a trolley type electric hoist (13) and a lifting hook (14), two ends of the bottom of the cross beam (11) are respectively connected with the top ends of the first adjusting oil cylinder (5) and the second adjusting oil cylinder (6), the telescopic ends of the first telescopic rod (8) and the second telescopic rod (10) are symmetrically installed at the bottom end of the cross beam (11), a guide rail (12) is arranged at the bottom end of the cross beam (11), the trolley type electric hoist (13) is movably connected to the guide rail (12), and the lifting hook (14) is installed at the bottom of the trolley type electric hoist (13).
4. The anti-tipping device for the suspension crane as claimed in claim 1, wherein the tightening mechanism comprises a left connecting seat (15), a right connecting seat (16), a plurality of first hydraulic cylinders (17), a plurality of second hydraulic cylinders (18) and a telescopic mechanism, wherein vertical guide holes are formed in the middle parts of the left connecting seat (15) and the right connecting seat (16), the guide holes of the left connecting seat (15) are vertically movably connected to the lower side of the outer part of the left upright column (2), the guide holes of the right connecting seat (16) are vertically movably connected to the lower side of the outer part of the right upright column (4), the bottoms of the first hydraulic cylinders (17) are uniformly and fixedly connected around the top end of the left base (1), the ends of the upper piston rods of the first hydraulic cylinders (17) are fixedly connected around the bottom surface of the left connecting seat (15), the bottoms of the second hydraulic cylinders (18) are uniformly and fixedly connected around the top end of the right base (3), the ends of the upper piston rods of the second hydraulic cylinders (18) are fixedly connected with the periphery of the right connecting seat (16), the telescopic mechanism is provided with the four corners of the left connecting seat (15) and the right connecting seat (16), and the telescopic mechanism is provided with the four corners of the telescopic mechanism.
5. The anti-tipping device for the suspension crane as claimed in claim 4, wherein the telescopic mechanism comprises a bottom plate (19), a support (20), a guide sleeve rod (21), a telescopic arm (23) and a third hydraulic cylinder (24), the support (20) is fixedly connected with the center of the top end of the bottom plate (19), a guide groove (22) is arranged inside the guide sleeve rod (21), the telescopic arm (23) is movably connected in the guide groove (22), the lower end of the telescopic arm (23) is hinged with the top end of the support (20), the top of the third hydraulic cylinder (24) is fixedly connected with the center of the top surface of the guide groove (22), a connecting hole is arranged in the middle of the upper side of the telescopic arm (23), and the end of a piston rod at the lower end of the third hydraulic cylinder (24) is fixedly connected with the bottom surface of the connecting hole.
6. A tipping prevention device for a suspension crane according to claim 5, characterized in that it further comprises a plurality of skid-proof pads (25), the plurality of skid-proof pads (25) being respectively mounted on the bottom ends of the base plates (19).
CN202223063383.6U 2022-11-18 2022-11-18 Anti-tipping device of suspension crane Active CN218619990U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223063383.6U CN218619990U (en) 2022-11-18 2022-11-18 Anti-tipping device of suspension crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223063383.6U CN218619990U (en) 2022-11-18 2022-11-18 Anti-tipping device of suspension crane

Publications (1)

Publication Number Publication Date
CN218619990U true CN218619990U (en) 2023-03-14

Family

ID=85448291

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223063383.6U Active CN218619990U (en) 2022-11-18 2022-11-18 Anti-tipping device of suspension crane

Country Status (1)

Country Link
CN (1) CN218619990U (en)

Similar Documents

Publication Publication Date Title
JPH1087278A (en) Mobile crane
CN212356339U (en) Suspension hanging device for crane maintenance
CN218619990U (en) Anti-tipping device of suspension crane
JP2019515166A (en) Perimeter safety screen assembly
JP2011132012A (en) Method of installing hoisting machine of elevator
US4165005A (en) Method and apparatus for the installation of the support element of a crane
CN214243533U (en) Automobile crane boom barrel mechanism
CN212863842U (en) Steady lifting device for steel frame construction
JP2003054876A (en) Device and method for attaching and detaching side frame
CN208200206U (en) A kind of boom hoisting used in culvert pipe
CN111285260A (en) Mechanical interlocking safety device for elevator
CN219363054U (en) Lifting appliance for lifting oil drum
CN212198274U (en) Miniature crane
JP2562475Y2 (en) Counterweight attachment / detachment device for construction machinery
CN114370152B (en) Suspension type operation platform for elevator shaft construction
CN215484746U (en) Turnover lower cage device for reinforcement cage
US5672043A (en) Lifting and swivelling device, in particular for motor vehicles
JP4397479B2 (en) Floodlight attachment for vehicle-mounted crane
CN209919871U (en) Lifting platform
CN214360137U (en) Suspension bridge main push-towing rope overhauls work platform
CN220702990U (en) Concrete trough beam lifting device
CN212465848U (en) Telescopic three-hanging-point hanger for window cleaning machine
CN214328569U (en) Bridge operation platform
CN216444887U (en) Mechanical equipment hoisting frame
CN220283294U (en) Hoisting device for bridge structural member

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant