CN103287949B - Straight top type heavy duty lift work platform - Google Patents
Straight top type heavy duty lift work platform Download PDFInfo
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- CN103287949B CN103287949B CN201310238632.7A CN201310238632A CN103287949B CN 103287949 B CN103287949 B CN 103287949B CN 201310238632 A CN201310238632 A CN 201310238632A CN 103287949 B CN103287949 B CN 103287949B
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- 230000002146 bilateral effect Effects 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000003245 working effect Effects 0.000 claims 1
- 230000000630 rising effect Effects 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention discloses a kind of straight top type heavy duty lift work platform, it adopts the multi-stage oil cylinder group of common single-stage oil cylinder composition to realize 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 car from falling, prevent due to oil cylinder lost efficacy cause fall suddenly, enhance the safety of lift work platform; Car bilateral symmetry arranges multiple multi-stage oil cylinder group, and multi-stage oil cylinder group is the multi-stage oil cylinder group broadening be step by step made up of several single-stage oil cylinders, car has multiple acting point, along with the increase of car rising height, acting point more disperses, and is evenly distributed, oil cylinder load is even, not easily 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, such that car weight is large, lifting maximum height is high, lifting steadily; The setting of multiple multi-stage oil cylinder group, when car area is larger, ensures that lifting steadily.
Description
Technical field
The invention belongs to elevator machinery technical field, specifically, relate to straight top type heavy duty lift work platform.
Background technology
Modern industry needs transport lot cargo fast and safely, comprises lifting and decline goods.
In prior art, the device of lifting and decline goods mainly contains cylinder hoist type elevator, Aerial Work LT and three kinds, 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, because this reducing because wire cable rupture causes the risk of falling in use procedure, and its load-carrying ability compared with Aerial Work LT is comparatively strong, and 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, disclose and " comprise car, oil cylinder, car track, oil cylinder guide rail; it is characterized in that: car is provided with " mountain " font outrigger; car is provided with track adjusting wheel; track adjusting wheel is placed in track; be respectively equipped with an oil cylinder, No. two oil cylinders with car both sides; an oil cylinder and No. two oil cylinder intercommunications, an 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 connected with " mountain " font outrigger by plunger.”
Elevator disclosed in above-mentioned patent only supports by the oil cylinder of both sides, after particularly giving rise to summit, car weight is all pressed on the plunger of two No. two oil cylinders, when needing rising height higher, along with length of oil cylinder is elongated, the rigidity of oil cylinder is deteriorated, oil cylinder is disturbance very easily, lifting process is not steady, and impact uses, and reduces the service life of equipment.
Summary of the invention
Instant invention overcomes shortcoming of the prior art, provide straight top type heavy duty lift work platform, it has safety, and cost is low, easy care, load-carrying is large, rising height is high, lifting steadily, the capacious feature of car.
In order to solve the problems of the technologies described above, the present invention is achieved by 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 multi-stage oil cylinder groups for driving car to be elevated, multi-stage oil cylinder group is the multi-stage oil cylinder group broadening be step by step made up of several single-stage oil cylinders; Car bilateral symmetry is provided with at least four falling proof devices for preventing 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 is connected by crossbeam, crossbeam by digonal link and car affixed.
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 that be arranged in parallel, first oil cylinder of secondary oil cylinder and the second oil cylinder are located at the first oil cylinder of elementary oil cylinder and the outside of the second oil cylinder, first oil cylinder of three grades of oil cylinders and the second oil cylinder are located at the first oil cylinder of secondary oil cylinder and the outside of the second oil cylinder, and the first oil cylinder of level Four oil cylinder and the second oil cylinder are located at the first oil cylinder of three grades of oil cylinders and the outside of the second oil cylinder.
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 passes 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 invention has the beneficial effects as follows:
Straight top type heavy duty lift work platform of the present invention, adopt the multi-stage oil cylinder group of common single-stage oil cylinder composition to realize multistage lifting, 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 car from falling, prevent due to oil cylinder lost efficacy cause fall suddenly, enhance the safety of lift work platform; Car bilateral symmetry arranges multiple multi-stage oil cylinder group, and multi-stage oil cylinder group is the multi-stage oil cylinder group broadening be step by step made up of several single-stage oil cylinders, car has multiple acting point, along with the increase of car rising height, acting point more disperses, and is evenly distributed, oil cylinder load is even, not easily 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, such that car weight is large, lifting maximum height is high, lifting steadily; The setting of multiple multi-stage oil cylinder group, when car area is larger, ensures that lifting steadily.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention, in the accompanying drawings:
Fig. 1 is the working state schematic representation of straight top type of the present invention heavy duty lift work platform;
Fig. 2 is another working state schematic representation of straight top type of the present invention heavy duty lift work platform;
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 of the present invention;
Fig. 6 is the view that multi-stage oil cylinder group of the present invention all stretches;
Fig. 7 is the view that multi-stage oil cylinder group of the present invention is all shunk.
Include in Fig. 1 to Fig. 7:
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.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
As shown in Figures 1 to 7, straight top type heavy duty lift work platform of the present invention, 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 is provided with four multi-stage oil cylinder groups 10 for driving car 20 to be elevated.The setting of multiple multi-stage oil cylinder group 10, one is to ensure that the load-carrying ability of lifting table is larger, and two is that lifting table can also use as usual when one of them multi-stage oil cylinder group 10 goes wrong, and personnel and goods can not be trapped in midair.Multi-stage oil cylinder group 10 is the multi-stage oil cylinder group 10 broadening be step by step made up of several single-stage oil cylinders.Single-stage oil cylinder is comparatively common, and cost is lower, not fragile, easily safeguards.Multi-stage oil cylinder group 10 broadening step by step, make that car 20 has multiple acting point, along with the increase of car 20 rising height, acting point more disperses, and is evenly distributed, and oil cylinder load is even, not easily disturbance.Car 20 is provided with car track adjusting wheel 21, and car track adjusting wheel 21 is rolled in 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 rolled in oil cylinder track 16.The setting of car track adjusting wheel 21 and oil cylinder track adjusting wheel 15, reduces the rolling that the disturbance because of multi-stage oil cylinder group 10 produces dynamic, ensure that the stability that car 20 is elevated.
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 cylinder 14, secondary oil cylinder 12 is fixed in the top of elementary oil cylinder 11 plunger, three grades of oil cylinders 13 are fixed in the top of secondary oil cylinder 12 plunger, 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 plunger is fixed in car 20.
As Fig. 1, shown in Fig. 2, elementary oil cylinder 11 bottom is 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 plunger of car 20 both sides is connected 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 that be arranged in parallel, first oil cylinder of secondary oil cylinder 12 and the second oil cylinder are located at the first oil cylinder of elementary oil cylinder 11 and the outside of the second oil cylinder, first oil cylinder of three grades of oil cylinders 13 and the second oil cylinder are located at the first oil cylinder of secondary oil cylinder 12 and the outside of the second oil cylinder, first oil cylinder of level Four oil cylinder 14 and the second oil cylinder are located at the first oil cylinder of three grades of oil cylinders 13 and the outside of the second oil cylinder, elementary oil cylinder 11, secondary oil cylinder 12, distance between first oil cylinder of three grades of oil cylinders 13 and level Four oil cylinder 14 and the second oil cylinder increases successively gradually, the object of such setting is, when making the height of car 20 lifting higher, when the 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, car 20 is made to be elevated steadily, oil cylinder is disturbance not easily.
First oil cylinder crossbeam 112, 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 when ensureing that multi-stage oil cylinder group 10 is elevated, makes car 20 be elevated steadily.
As shown in Figure 1 and Figure 2, multi-stage oil cylinder group 10 is controlled by electric-control system 40.Ensure the synchronized operation of four groups of multi-stage oil cylinder groups 10, car 20 is operated steadily.
As shown in Figure 4, Figure 5, car 20 bilateral symmetry is provided with at least four falling proof devices 30 for preventing car 20 from falling.Ensure 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 is connected to orienting sleeve 33.Four telescopic oil cylinders 31 are communicated with by oil pipe 34, ensure the synchronism of four telescopic oil cylinders 31.
The working process of straight top type heavy duty lift work platform of the present invention 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, second oil cylinder crossbeam 123 and the 3rd oil cylinder crossbeam 134 upward movement, and then drive secondary oil cylinder 12, three grades of oil cylinders 13 and level Four oil cylinder 14 upward movement, namely drive car 20 upward movement, elementary oil cylinder 11 completes one-level lifting after stretching; 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 movement, and then drive three grades of oil cylinders 13 and level Four oil cylinder 14 upward movement, namely car 20 upward movement, completes secondary lifting; Then the plunger of three grades of oil cylinders 13 stretches out, and promotes the 3rd oil cylinder crossbeam 134 upward movement, drives level Four oil cylinder 14 and car 20 upward movement, completes three grades of liftings; The plunger of last level Four oil cylinder 14 stretches out, and promote car 20 and complete afterbody lifting, car 20 process that declines is contrary with said process.
The installation method of straight top type heavy duty lift work platform of the present invention:
1. whole loading space must ensure level, four angles of car 20 when extreme lower position and the diff-H of horizontal surface be not more than 1mm.
2., when installing peripheral frame 60, 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 is long is not less than 50mm.Peripheral frame 60 size designs according to actual needs.
3., when installing car track 22 and oil cylinder track 16, 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. install car track adjusting wheel 21 and oil cylinder track adjusting wheel 15, car track adjusting wheel 21 and car track 22, oil cylinder track adjusting wheel 15 match with oil cylinder track 16 should ensure that the gap, left and right of wheel rim and track is identical.Car track adjusting wheel 21 is welded with loading space and is answered full weld, and installs brace panel additional at car track adjusting wheel 21 periphery.
5., when multi-stage oil cylinder group 10 is installed, ensure that the perpendicularity deviation of multi-stage oil cylinder group 10 is not more than 0.2/1000mm.
6. install crossbeam 23, crossbeam 23 welds with loading space should be firm, need install reinforcement gusset. and weld seam is fillet welding and vertical position welding, and weld seam is high is not less than 10mm.
7. install oil pipe 34, moving part is consistent lubricant pipe 34, and fixed position is the resistance to pressure 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 and oil cylinder track 16 plane of action coat appropriate butter.
Last it is noted that these are only the preferred embodiments of the present invention; be not limited to the present invention; although with reference to embodiment to invention has been detailed description; for a person skilled in the art; it still can be modified to the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; but it is within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
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 multi-stage oil cylinder groups for driving described car to be elevated, described multi-stage oil cylinder group is the multi-stage oil cylinder group broadening be step by step made up of several single-stage oil cylinders; Described car bilateral symmetry is provided with at least four falling proof devices for preventing described car from falling, described falling proof device comprises telescopic oil cylinder and the pilot bar hinged with the expansion link of described telescopic oil cylinder, described pilot bar outer cover is connected to orienting sleeve, car bilateral symmetry is provided with at least four falling proof devices for preventing car from falling, four telescopic oil cylinders are communicated with by oil pipe, four telescopic oil cylinder synchronous workings; 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 heavy duty lift work platform according to claim 1, 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 according to claim 2 heavy duty lift work platform, is characterized in that: the top that symmetry is positioned at the described level Four Cylinder Plunger of described car both sides is connected by crossbeam, described crossbeam by digonal link and described car affixed.
4. straight top type heavy duty lift work platform according to claim 2, 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 that be arranged in parallel, first oil cylinder of described secondary oil cylinder and the second oil cylinder are located at the first oil cylinder of described elementary oil cylinder and the outside of the second oil cylinder, first oil cylinder of described three grades of oil cylinders and the second oil cylinder are located at the first oil cylinder of described secondary oil cylinder and the outside of the second oil cylinder, first oil cylinder of described level Four oil cylinder and the second oil cylinder are located at the first oil cylinder of described three grades of oil cylinders and the outside of the second oil cylinder.
5. straight top type heavy duty lift work platform according to claim 4, it is characterized in that: it is affixed that described primary oil cylinder plug and described secondary oil cylinder pass through the first oil cylinder crossbeam, it is affixed that described secondary Cylinder Plunger and described three grades of oil cylinders pass through the second oil cylinder crossbeam, and it is affixed that described three grades of Cylinder Plungers and described level Four oil cylinder pass through the 3rd oil cylinder crossbeam.
6., according to straight top type heavy duty lift work platform according to claim 5, it is characterized in that: the both sides of described 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 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 passes through electric control system controls.
9. straight top type heavy duty lift work platform according to claim 1, is characterized in that: four described telescopic oil cylinders are communicated with by oil pipe.
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| CN201310238632.7A CN103287949B (en) | 2013-06-17 | 2013-06-17 | Straight top type heavy duty lift work platform |
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| CN201310238632.7A CN103287949B (en) | 2013-06-17 | 2013-06-17 | Straight top type heavy duty lift work platform |
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| CN103287949A CN103287949A (en) | 2013-09-11 |
| CN103287949B true CN103287949B (en) | 2015-08-12 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110040631A (en) * | 2019-05-22 | 2019-07-23 | 安徽柳工起重机有限公司 | Craneman's house lifting device and crane |
| CN115108433B (en) * | 2022-06-13 | 2024-01-30 | 福建力霸机械科技股份有限公司 | Guide rail type elevator |
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| JP2000203774A (en) * | 1998-11-12 | 2000-07-25 | Toshiba Corp | Stop locking device for elevator car |
| CN101134547A (en) * | 2006-08-30 | 2008-03-05 | 上海三菱电梯有限公司 | Elevator car fixing device |
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| CN102583142A (en) * | 2012-03-15 | 2012-07-18 | 扬州凯思特机械有限公司 | Falling protection device for hydraulically telescopic cage guide |
| CN102826430A (en) * | 2012-08-07 | 2012-12-19 | 中建三局第一建设工程有限责任公司 | Large-scale lifting device based on deep foundation pit vertical earthmoving |
| CN203392686U (en) * | 2013-06-17 | 2014-01-15 | 柳雪春 | Direct-pushing heavy load lifting operation platform |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3739654A1 (en) * | 1987-11-23 | 1989-06-01 | Freisl Paul Peter | Automatic brake device for cages |
| US5065845A (en) * | 1990-09-13 | 1991-11-19 | Pearson David B | Speed governor safety device for stopping an elevator car |
| CN201089689Y (en) * | 2007-07-31 | 2008-07-23 | 李朝伟 | Mine cage safety receiving and protecting equipment |
| JP2011256016A (en) * | 2010-06-09 | 2011-12-22 | Hitachi Ltd | Elevator device |
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2013
- 2013-06-17 CN CN201310238632.7A patent/CN103287949B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000203774A (en) * | 1998-11-12 | 2000-07-25 | Toshiba Corp | Stop locking device for elevator car |
| CN101134547A (en) * | 2006-08-30 | 2008-03-05 | 上海三菱电梯有限公司 | Elevator car fixing device |
| CN202054575U (en) * | 2011-05-05 | 2011-11-30 | 东莞市达成机械设备制造有限公司 | Sleeve oil cylinder lifting platform |
| CN102583142A (en) * | 2012-03-15 | 2012-07-18 | 扬州凯思特机械有限公司 | Falling protection device for hydraulically telescopic cage guide |
| CN102826430A (en) * | 2012-08-07 | 2012-12-19 | 中建三局第一建设工程有限责任公司 | Large-scale lifting device based on deep foundation pit vertical earthmoving |
| CN203392686U (en) * | 2013-06-17 | 2014-01-15 | 柳雪春 | Direct-pushing heavy load lifting operation platform |
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| CN103287949A (en) | 2013-09-11 |
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Effective date of registration: 20151222 Address after: Dongguan City, Guangdong province 523000 Dongguan city Humen town Yan Gang Village Second Industrial Zone Hua Nan Chun Yueh Machinery Manufacturing Co. Ltd. Patentee after: DONGGUAN HUANAN JUNYE MACHINERY MANUFACTURING CO., LTD. Address before: Dongguan City, Guangdong province 523932 Dongguan city Humen town Yan Gang Village Second Industrial Zone Hua Nan Chun Yueh Machinery Manufacturing Co. Ltd. Patentee before: Liu Xuechun |
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Address after: 523000 No.4, Yanxing Second Road, Humen Town, Dongguan City, Guangdong Province Patentee after: Guangdong Huanan Junye Machinery Manufacturing Co., Ltd Address before: Dongguan City, Guangdong province 523000 Dongguan city Humen town Yan Gang Village Second Industrial Zone Hua Nan Chun Yueh Machinery Manufacturing Co. Ltd. Patentee before: DONGGUAN HUANAN JUNYE MACHINERY MANUFACTURING Co.,Ltd. |
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