CN203392686U - Direct-pushing heavy load lifting operation platform - Google Patents

Direct-pushing heavy load lifting operation platform Download PDF

Info

Publication number
CN203392686U
CN203392686U CN201320344987.XU CN201320344987U CN203392686U CN 203392686 U CN203392686 U CN 203392686U CN 201320344987 U CN201320344987 U CN 201320344987U CN 203392686 U CN203392686 U CN 203392686U
Authority
CN
China
Prior art keywords
oil cylinder
car
oil
crossbeam
level
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.)
Expired - Fee Related
Application number
CN201320344987.XU
Other languages
Chinese (zh)
Inventor
柳雪春
柳黎
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201320344987.XU priority Critical patent/CN203392686U/en
Application granted granted Critical
Publication of CN203392686U publication Critical patent/CN203392686U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

The utility model discloses a direct-pushing heavy load lifting operation platform. The platform realizes multi-level lifting by adopting multi-level oil cylinder groups formed by common single-level oil cylinders, so the platform is lower in structural cost compared with that adopting multiple level oil cylinders and is easy to maintain. At least four anti-falling devices for preventing a life car from falling are symmetrically arranged at two sides of the lift car, so sudden falling caused by failure of oil cylinders is prevented and the safety of the lifting operation platform is enhanced; multiple multi-level oil cylinder groups are symmetrically arranged at the two sides of the lift car and are of gradually widened multi-level oil cylinder groups formed by a plurality of single-level oil cylinders; multiple stressing points are arranged on the lift car and are more dispersed and uniformly distributed along with the increasing of the lifting height of the lift car; the oil cylinders are uniformly stressed without easily caused disturbance; lift car guide wheels are arranged on the lift car and the multi-level oil cylinder groups are provided with oil cylinder guide wheels, so the oil cylinder disturbance is reduced, and the lift car is large in loading, high in maximum lifting height and stable in lifting; due to the arrangement of the multi-level oil cylinder groups, the lifting is enabled to be stable under the condition of a larger lift car area.

Description

Straight top type heavy duty lift work platform
Technical field
The utility model belongs to elevator machinery technical field, specifically, relates to straight top type heavy duty lift work platform.
Background technology
Modern industry needs transportation lot cargo fast and safely, comprises lifting and decline goods.
In prior art, the device of lifting and decline goods mainly contains three kinds, cylinder hoist type elevator, Aerial Work LT and oil cylinder direct ejection formula elevator.Wherein oil cylinder direct ejection formula elevator adopts oil cylinder as the actuating device of bay-lift, do not adopt the parts of the easy fractures such as steel rope, therefore reduced in use procedure because wire cable rupture causes the risk of falling, and its to compare load-carrying ability stronger with Aerial Work LT, lift height is higher.
The patent No. is the Chinese patent of ZL 200720057834.1, name is called without soft traction straight-topped hydraulic elevator, " comprising car, oil cylinder, car track, oil cylinder guide rail; it is characterized in that: car is provided with Yi Ge“ mountain " font outrigger being disclosed; car is provided with track adjusting wheel; track adjusting wheel is placed in track; is respectively equipped with an oil cylinder, No. two oil cylinders with car both sides; an oil cylinder and No. two oil cylinder intercommunications, No. one oil cylinder is connected with connecting element by plunger, one end of No. two oil cylinders is connected with connecting element, and No. two oil cylinders are by plunger Yu“ mountain " connection of font outrigger.”
The disclosed elevator of above-mentioned patent only depends on the oil cylinder of both sides to support, particularly give rise to behind summit, car weight is all pressed on the plunger of two No. two oil cylinders, while needing rising height higher, along with oil cylinder length is elongated, the rigidity variation of oil cylinder, oil cylinder is disturbance very easily, lifting process is not steady, and impact is used, and reduces the service life of equipment.
Summary of the invention
The utility model has overcome shortcoming of the prior art, and straight top type heavy duty lift work platform is provided, and it has safety, and cost is low, easy care, load-carrying is large, rising height is high, and lifting is steady, the capacious feature of car.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
Straight top type heavy duty lift work platform, comprise petrol station, peripheral frame, oil cylinder bottom joist, car, car track and oil cylinder track, it is characterized in that: car bilateral symmetry is provided with at least four for driving the multi-stage oil cylinder group of car lifting the serve as reasons multi-stage oil cylinder group of the broadening step by step that several single-stage oil cylinders form of multi-stage oil cylinder group; Car bilateral symmetry is provided with at least four falling proof devices for preventing that car from falling; Car is provided with car track adjusting wheel, and car track adjusting wheel is rolled in car track, and multi-stage oil cylinder group is provided with oil cylinder track adjusting wheel, and oil cylinder track adjusting wheel is rolled in oil cylinder track.
Further, multi-stage oil cylinder group comprises elementary oil cylinder, secondary oil cylinder, three grades of oil cylinders and level Four oil cylinder, elementary oil cylinder is fixed in oil cylinder bottom joist, secondary oil cylinder is fixed in the top of primary oil's cylinder plug, three grades of oil cylinders are fixed in the top of secondary Cylinder Plunger, level Four oil cylinder is fixed in the top of three grades of Cylinder Plungers, and the top of level Four Cylinder Plunger is fixed in car.
Further, the top that symmetry is positioned at the level Four Cylinder Plunger of car both sides connects by crossbeam, and crossbeam is affixed by digonal link and car.
Further, elementary oil cylinder, secondary oil cylinder, three grades of oil cylinders and level Four oil cylinder include the first oil cylinder and the second oil cylinder be arrangeding in parallel, the first oil cylinder of secondary oil cylinder and the second oil cylinder are located at the outside of the first oil cylinder and second oil cylinder of elementary oil cylinder, the first oil cylinder of three grades of oil cylinders and the second oil cylinder are located at the outside of the first oil cylinder and second oil cylinder of secondary oil cylinder, and the first oil cylinder of level Four oil cylinder and the second oil cylinder are located at the outside of the first oil cylinder and second oil cylinder of three grades of oil cylinders.
Further, primary oil's cylinder plug and secondary oil cylinder are affixed by the first oil cylinder crossbeam, and secondary Cylinder Plunger is affixed by the second oil cylinder crossbeam with three grades of oil cylinders, and it is affixed that three grades of Cylinder Plungers and level Four oil cylinder pass through the 3rd oil cylinder crossbeam.
Further, the both sides of the first oil cylinder crossbeam, the second oil cylinder crossbeam and the 3rd oil cylinder crossbeam are equipped with oil cylinder track adjusting wheel.
Further, the both sides of the first oil cylinder crossbeam, the second oil cylinder crossbeam and the 3rd oil cylinder crossbeam are equipped with at least two oil cylinder track adjusting wheels.
Further, multi-stage oil cylinder group is passed through electric control system controls.
Further, falling proof device comprises telescopic oil cylinder and the pilot bar hinged with the expansion link of telescopic oil cylinder, and pilot bar outer cover is connected to orienting sleeve.
Further, four telescopic oil cylinders are communicated with by oil pipe.
Compared with prior art, the beneficial effects of the utility model are:
Straight top type heavy duty lift work platform described in the utility model, the multi-stage oil cylinder group that adopts common single-stage oil cylinder to form realizes multistage lifting, and than adopting, the infrastructure cost of multi-stage oil cylinder is lower, easily safeguards; Car bilateral symmetry is provided with at least four falling proof devices for preventing that car from falling, and prevents from, due to falling suddenly that oil cylinder lost efficacy and causes, having strengthened the safety of lift work platform; Car bilateral symmetry arranges a plurality of multi-stage oil cylinder groups, and the serve as reasons multi-stage oil cylinder group of the broadening step by step that several single-stage oil cylinders form of multi-stage oil cylinder group, has a plurality of acting point on car, along with the increase of car rising height, acting point more disperses, and is evenly distributed, oil cylinder load is even, is difficult for disturbance; Car is provided with car track adjusting wheel, and multi-stage oil cylinder group is provided with oil cylinder track adjusting wheel, reduces the disturbance of oil cylinder, makes that car load-carrying is large, lifting maximum height is high, lifting is steady; The setting of a plurality of multi-stage oil cylinder groups, in the situation that car area is larger, guarantees that lifting is steady.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, is used from explanation the utility model with embodiment mono-of the present utility model, does not form to restriction of the present utility model, in the accompanying drawings:
Fig. 1 is the working state schematic representation of straight top type heavy duty lift work platform described in the utility model;
Fig. 2 is another working state schematic representation of straight top type heavy duty lift work platform described in the utility model;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the birds-eye view of Fig. 2;
Fig. 5 is the mounting structure schematic diagram of falling proof device described in the utility model;
Fig. 6 is the view that multi-stage oil cylinder group described in the utility model all stretches;
Fig. 7 is the view that multi-stage oil cylinder group described in the utility model is all shunk.
In Fig. 1 to Fig. 7, include:
10---multi-stage oil cylinder group, 11---elementary oil cylinder, 12---secondary oil cylinder, 13---three grades of oil cylinders, 14---level Four oil cylinder, 15---oil cylinder track adjusting wheel, 16---oil cylinder track, 112---the first oil cylinder crossbeam, 123---second oil cylinder crossbeam, 134---the 3rd oil cylinder crossbeams;
20---car, 21---car track adjusting wheel, 22---car track, 23---crossbeam, 24---digonal links;
30---falling proof device, 31---telescopic oil cylinder, 32---pilot bar, 33---orienting sleeve, 34---oil pipes;
40---electric-control system;
50---petrol station;
60---peripheral frame;
70---oil cylinder bottom joist.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.
As shown in Figures 1 to 7, straight top type heavy duty lift work platform described in the utility model, comprise petrol station 50, peripheral frame 60, oil cylinder bottom joist 70, car 20, car track 22 and oil cylinder track 16, car 20 bilateral symmetry are provided with four for driving the multi-stage oil cylinder group 10 of car 20 liftings.The setting of a plurality of multi-stage oil cylinder groups 10, the one, can guarantee that the load-carrying ability of lifting table is larger, the 2nd, when one of them multi-stage oil cylinder group 10 goes wrong, lifting table can also be used as usual, and personnel and goods can not be trapped in midair.The serve as reasons multi-stage oil cylinder group 10 of the broadening step by step that several single-stage oil cylinders form of multi-stage oil cylinder group 10.Single-stage oil cylinder is comparatively common, and cost is lower, not fragile, easily safeguards.The multi-stage oil cylinder group 10 of broadening step by step, making has a plurality of acting point on car 20, and along with the increase of car 20 rising heights, acting point more disperses, and is evenly distributed, and oil cylinder load is even, is difficult for disturbance.Car 20 is provided with car track adjusting wheel 21, and car track adjusting wheel 21 is in the interior rolling of car track 22, and multi-stage oil cylinder group 10 is provided with oil cylinder track adjusting wheel 15, and oil cylinder track adjusting wheel 15 is in the interior rolling of oil cylinder track 16.The setting of car track adjusting wheel 21 and oil cylinder track adjusting wheel 15, reduces the rolling innervation because of the disturbance generation of multi-stage oil cylinder group 10, has guaranteed the stability of car 20 liftings.
Multi-stage oil cylinder group 10 comprises elementary oil cylinder 11, secondary oil cylinder 12, three grades of oil cylinders 13 and level Four oil cylinders 14, secondary oil cylinder 12 is fixed in the top of elementary oil cylinder 11 plungers, three grades of oil cylinders 13 are fixed in the top of secondary oil cylinder 12 plungers, level Four oil cylinder 14 is fixed in the top of three grades of oil cylinder 13 plungers, and the top of level Four oil cylinder 14 plungers is fixed in car 20.
As Fig. 1, shown in Fig. 2, elementary oil cylinder 11 bottoms are fixed in oil cylinder bottom joist 70, the plunger of elementary oil cylinder 11 is fixed in the first oil cylinder crossbeam 112, the cylinder barrel upper end of secondary oil cylinder 12 is fixed in the first oil cylinder crossbeam 112, the plunger of secondary oil cylinder 12 is fixed in the second oil cylinder crossbeam 123, the cylinder barrel upper end of three grades of oil cylinders 13 is fixed in the second oil cylinder crossbeam 123, the plunger of three grades of oil cylinders 13 is fixed in the 3rd oil cylinder crossbeam 134, the cylinder barrel upper end of level Four oil cylinder 14 is fixed in the 3rd oil cylinder crossbeam 134, the top that symmetry is positioned at level Four oil cylinder 14 plungers of car 20 both sides connects by crossbeam 23, crossbeam 23 is affixed by digonal link 24 and car 20.
As Fig. 6, shown in Fig. 7, elementary oil cylinder 11, secondary oil cylinder 12, three grades of oil cylinders 13 and level Four oil cylinder 14 include the first oil cylinder and the second oil cylinder be arrangeding in parallel, the first oil cylinder of secondary oil cylinder 12 and the second oil cylinder are located at the outside of the first oil cylinder and second oil cylinder of elementary oil cylinder 11, the first oil cylinder of three grades of oil cylinders 13 and the second oil cylinder are located at the outside of the first oil cylinder and second oil cylinder of secondary oil cylinder 12, the first oil cylinder of level Four oil cylinder 14 and the second oil cylinder are located at the outside of the first oil cylinder and second oil cylinder of three grades of oil cylinders 13, elementary oil cylinder 11, secondary oil cylinder 12, the first oil cylinder of three grades of oil cylinders 13 and level Four oil cylinder 14 and the distance between the second oil cylinder increase successively gradually, the object arranging is like this, while making the height of car 20 liftings higher, when length that multi-stage oil cylinder group 10 stretches is longer, its acting point on car 20 of passive oil cylinder is overstepping the bounds of propriety loose, make car 20 liftings steady, oil cylinder is difficult for disturbance.
The first oil cylinder crossbeam 112, the second oil cylinder crossbeam 123 and the 3rd oil cylinder crossbeam 134 both sides are equipped with two oil cylinder track adjusting wheels 15.Not disturbance while guaranteeing 10 lifting of multi-stage oil cylinder group, makes car 20 liftings steady.
As shown in Figure 1 and Figure 2, multi-stage oil cylinder group 10 is controlled by electric-control system 40.Guarantee four groups of multi-stage oil cylinder group 10 synchronized operations, car 20 is operated steadily.
As shown in Figure 4, Figure 5, car 20 bilateral symmetry are provided with at least four falling proof devices 30 for preventing that car 20 from falling.Guarantee the safety of lifting table.Falling proof device 30 comprises telescopic oil cylinder 31 and the pilot bar 32 hinged with the expansion link of telescopic oil cylinder 31, and pilot bar 32 outer cover are connected to orienting sleeve 33.Four telescopic oil cylinders 31 are communicated with by oil pipe 34, guarantee the synchronism of four telescopic oil cylinders 31.
The working process of straight top type heavy duty lift work platform described in the utility model is:
Initial condition is as shown in Fig. 2, Fig. 6, car 20 is positioned at the lowermost end of lift work platform, all oil cylinders of multi-stage oil cylinder group 10 are in contraction state, now the plunger of all elementary oil cylinders 11 stretches under the control of electric-control system 40, promote the first oil cylinder crossbeam 112, the second oil cylinder crossbeam 123 and the 3rd oil cylinder crossbeam 134 upward movements, and then drive secondary oil cylinder 12, three grades of oil cylinders 13 and level Four oil cylinder 14 upward movements, namely drive car 20 upward movements, after elementary oil cylinder 11 stretches, complete one-level lifting; The plunger of secondary oil cylinder 12 stretches out under the control of electric-control system 40, promote the second oil cylinder crossbeam 123 and the 3rd oil cylinder crossbeam 134 upward movements, and then drive three grades of oil cylinders 13 and level Four oil cylinder 14 upward movements, namely car 20 upward movements, complete secondary lifting; Then the plunger of three grades of oil cylinders 13 stretches out, and promotes the 3rd oil cylinder crossbeam 134 upward movements, drives level Four oil cylinder 14 and car 20 upward movements, completes three grades of liftings; The plunger of last level Four oil cylinder 14 stretches out, and promotes car 20 and completes afterbody lifting, and car 20 decline processes are contrary with said process.
The installation method of straight top type heavy duty lift work platform described in the utility model:
1. whole loading space must guarantee level, car 20Si Ge angle when extreme lower position and the diff-H of horizontal surface be not more than 1mm.
2. while peripheral frame 60 being installed, vertical line is hung in periphery, and levelness and perpendicularity deviation are not more than 0.5/1000mm.Main frame weld nugget is two sides full weld.Grille guard is welded as intermittent weld, and weld seam length is not less than 50mm.Peripheral frame 60 sizes design according to actual needs.
3. while car track 22 and oil cylinder track 16 being installed, car track 22 and oil cylinder track 16 hang vertical line, and perpendicularity deviation is not more than 0.5/1000mm.All weld nuggets are two sides full weld.
4. car track adjusting wheel 21 and oil cylinder track adjusting wheel 15 are installed, and car track adjusting wheel 21 matches with oil cylinder track 16 and should guarantee that the gap, left and right of wheel rim and track is identical with car track 22, oil cylinder track adjusting wheel 15.Car track adjusting wheel 21 is answered full weld with loading space welding, and installs brace panel additional at car track adjusting wheel 21 peripheries.
5., while multi-stage oil cylinder group 10 being installed, guarantee that the perpendicularity deviation of multi-stage oil cylinder group 10 is not more than 0.2/1000mm.
6. crossbeam 23 is installed, and crossbeam 23 should be firm with loading space welding, needs installation to strengthen gusset. and weld seam is fillet welding and vertical position welding, the high 10mm that is not less than of weld seam.
7. oil pipe 34 is installed, and moving part is consistent lubricant pipe 34, and fixed position is that the withstand voltage pressure of hard oil pipe 34. oil pipe 34 is 25MPa.
8. mounting electrical interlock system and safety protective door.
9. after installing, carry out trail run.
10. after normal operation, car track 22 is coated appropriate butter with oil cylinder track 16 plane of action.
Finally it should be noted that: these are only preferred embodiment of the present utility model; be not limited to the utility model; although the utility model is had been described in detail with reference to embodiment; for a person skilled in the art; its technical scheme that still can record aforementioned each embodiment is modified; or part technical characterictic is wherein equal to replacement; but all within spirit of the present utility model and principle; any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (10)

1. straight top type heavy duty lift work platform, comprise petrol station, peripheral frame, oil cylinder bottom joist, car, car track and oil cylinder track, it is characterized in that: described car bilateral symmetry is provided with at least four for driving the multi-stage oil cylinder group of described car lifting the serve as reasons multi-stage oil cylinder group of the broadening step by step that several single-stage oil cylinders form of described multi-stage oil cylinder group; Described car bilateral symmetry is provided with at least four falling proof devices for preventing that described car from falling; Described car is provided with car track adjusting wheel, and described car track adjusting wheel is rolled in described car track, and described multi-stage oil cylinder group is provided with oil cylinder track adjusting wheel, and described oil cylinder track adjusting wheel is rolled in described oil cylinder track.
2. straight top type according to claim 1 heavy duty lift work platform, it is characterized in that: described multi-stage oil cylinder group comprises elementary oil cylinder, secondary oil cylinder, three grades of oil cylinders and level Four oil cylinder, described elementary oil cylinder is fixed in described oil cylinder bottom joist, described secondary oil cylinder is fixed in the top of described primary oil cylinder plug, described three grades of oil cylinders are fixed in the top of described secondary Cylinder Plunger, described level Four oil cylinder is fixed in the top of described three grades of Cylinder Plungers, and the top of described level Four Cylinder Plunger is fixed in described car.
3. straight top type heavy duty lift work platform according to claim 2, is characterized in that: the top that symmetry is positioned at the described level Four Cylinder Plunger of described car both sides connects by crossbeam, and described crossbeam is affixed by digonal link and described car.
4. straight top type according to claim 2 heavy duty lift work platform, it is characterized in that: described elementary oil cylinder, secondary oil cylinder, three grades of oil cylinders and level Four oil cylinder include the first oil cylinder and the second oil cylinder be arrangeding in parallel, the first oil cylinder of described secondary oil cylinder and the second oil cylinder are located at the outside of the first oil cylinder and second oil cylinder of described elementary oil cylinder, the first oil cylinder of described three grades of oil cylinders and the second oil cylinder are located at the outside of the first oil cylinder and second oil cylinder of described secondary oil cylinder, the first oil cylinder of described level Four oil cylinder and the second oil cylinder are located at the outside of the first oil cylinder and second oil cylinder of described three grades of oil cylinders.
5. straight top type according to claim 4 heavy duty lift work platform, it is characterized in that: described primary oil cylinder plug and described secondary oil cylinder are affixed by the first oil cylinder crossbeam, described secondary Cylinder Plunger and described three grades of oil cylinders are affixed by the second oil cylinder crossbeam, and described three grades of Cylinder Plungers and described level Four oil cylinder are affixed by the 3rd oil cylinder crossbeam.
6. according to straight top type heavy duty lift work platform claimed in claim 5, it is characterized in that: the both sides of described the first oil cylinder crossbeam, the second oil cylinder crossbeam and the 3rd oil cylinder crossbeam are equipped with oil cylinder track adjusting wheel.
7. straight top type heavy duty lift work platform according to claim 6, is characterized in that: the both sides of described the first oil cylinder crossbeam, the second oil cylinder crossbeam and the 3rd oil cylinder crossbeam are equipped with at least two oil cylinder track adjusting wheels.
8. straight top type heavy duty lift work platform according to claim 1, is characterized in that: described multi-stage oil cylinder group is passed through electric control system controls.
9. straight top type heavy duty lift work platform according to claim 1, is characterized in that: described falling proof device comprises telescopic oil cylinder and the pilot bar hinged with the expansion link of described telescopic oil cylinder, and described pilot bar outer cover is connected to orienting sleeve.
10. straight top type heavy duty lift work platform according to claim 9, is characterized in that: four described telescopic oil cylinders are communicated with by oil pipe.
CN201320344987.XU 2013-06-17 2013-06-17 Direct-pushing heavy load lifting operation platform Expired - Fee Related CN203392686U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320344987.XU CN203392686U (en) 2013-06-17 2013-06-17 Direct-pushing heavy load lifting operation platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320344987.XU CN203392686U (en) 2013-06-17 2013-06-17 Direct-pushing heavy load lifting operation platform

Publications (1)

Publication Number Publication Date
CN203392686U true CN203392686U (en) 2014-01-15

Family

ID=49904233

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320344987.XU Expired - Fee Related CN203392686U (en) 2013-06-17 2013-06-17 Direct-pushing heavy load lifting operation platform

Country Status (1)

Country Link
CN (1) CN203392686U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103287949A (en) * 2013-06-17 2013-09-11 柳雪春 Directly-pushed type heavy load lifting work platform
CN105952701A (en) * 2016-05-20 2016-09-21 黄媛 Multi-hydraulic-cylinder driving mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103287949A (en) * 2013-06-17 2013-09-11 柳雪春 Directly-pushed type heavy load lifting work platform
CN103287949B (en) * 2013-06-17 2015-08-12 柳雪春 Straight top type heavy duty lift work platform
CN105952701A (en) * 2016-05-20 2016-09-21 黄媛 Multi-hydraulic-cylinder driving mechanism

Similar Documents

Publication Publication Date Title
CN202463955U (en) Non-snubbing equipment trailer
CN203826828U (en) Maintenance and conveyance platform for switch cabinet breaker
CN203392686U (en) Direct-pushing heavy load lifting operation platform
CN203959574U (en) A kind of fall protection equipment of elevator
CN103287949B (en) Straight top type heavy duty lift work platform
CN206219071U (en) A kind of switch cubicle installation lifting appliance
CN102383818B (en) Folding type suspended mobile hydraulic support equipment
CN104675179A (en) Self-elevating type hanging bracket device for mounting steel tower and construction method for steel tower
CN107587885A (en) Two lining trolley structures and assembling method in a kind of standard cross-section of tunnel
CN203486803U (en) Crane, counterweight device and rope assembly hanging mechanism
CN103086254B (en) Crawler crane combined lifting appliance
CN202575722U (en) Supporting and traveling system for heavy transportation machinery
CN205772865U (en) Extensive potroom overhaul of the equipments aid system
CN204532376U (en) Split type lifting construction trolley
CN104198176B (en) The installing mechanism tested for fork intension
CN202785365U (en) Bridge-type cross-rail crane
CN103273989B (en) Supporting device for assembling chassis
CN102786012A (en) Large-tonnage lift platform
CN103498418B (en) Device for shifting hanging basket assembly pieces and construction method
CN106219403A (en) Single crab polar crane
CN207810983U (en) SC construction hoist falling-proof safety devices
CN112192503A (en) Installation method for installing tower in cold box
CN103395708A (en) Crane, counterweight device and rope hanging mechanism
CN102839896A (en) Mine safety door
CN210340013U (en) Lifting machine

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140115

Termination date: 20170617

CF01 Termination of patent right due to non-payment of annual fee