CN203199912U - Folding gantry crane - Google Patents
Folding gantry crane Download PDFInfo
- Publication number
- CN203199912U CN203199912U CN 201320166025 CN201320166025U CN203199912U CN 203199912 U CN203199912 U CN 203199912U CN 201320166025 CN201320166025 CN 201320166025 CN 201320166025 U CN201320166025 U CN 201320166025U CN 203199912 U CN203199912 U CN 203199912U
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- folding
- pillar stand
- crane
- movement
- upper pillar
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Abstract
The utility model discloses a folding gantry crane which comprises a crane girder and an electric crane arranged on the crane girder; folding stand columns are connected with the crane girder; a bottom girder is connected between the two folding stand columns arranged at the same side; each folding stand column comprises an upper stand column and a lower stand column; the upper stand column is connected with the crane girder by a shaft; a first hydraulic cylinder is also arranged between the upper stand column and the crane girder; the lower stand column is connected with the upper stand column by a shaft; a second hydraulic cylinder is also arranged between the lower stand column and the upper stand column; two telescopic beams are respectively arranged at the two sides of each bottom girder; a longitudinal extension wheel is arranged at the bottom of each telescopic beam; movable/steering wheels respectively arranged at the two ends of the bottom girder are respectively connected with the telescopic beams by a telescopic cylinder. The folding gantry crane can be folded by the design of the folding stand columns and the hydraulic cylinders, and can be steered and make transverse movement, thus realizing the transition of the gantry crane, and overcoming the defects that the existing gantry crane is hard to transfer and low in usage rate.
Description
Technical field
The utility model belongs to the hoisting crane technical field, relates to a kind of folding gauntry crane.
Background technology
Gauntry crane (transfer crane) is a kind of distortion of crane in bridge type, is mainly used in the loading and unloading operation of outdoor goods yard, stock ground goods, bulk goods.Its metal construction is installed two legs as door-shaped frame under the support main beam, can directly walk at the ground orbit of flates, and the girder two ends can have overhanging cantilever beam.Transfer crane has the characteristics such as the utilization of area rate is high, scope of work large, it is wide to adapt to, highly versatile.
Yet the gauntry crane volume is large, and weight is large, and investment is large, generally is fixed on a place, generally can not realize transition, unless reinstall; When needs are cut to, need dismounting, assembling like this, process bothers very much.And when a plurality of places need gauntry crane, just needing to drop into a plurality of gauntrys crane, fund input is large, and Occupation coefficient is not high.After in a single day existing gauntry crane was installed and fixed, its height, width generally can not change, and have limited using area.
The utility model content
The technical matters that the utility model solves is to provide a kind of folding gauntry crane, can work in the time of in working order, and after when needs are cut to that gauntry crane is folding, carry out transition by traction, can realize that a plurality of places share a gauntry crane.
The utility model is to be achieved through the following technical solutions:
A kind of folding gauntry crane comprises crane crossbeam and the electric crane that is arranged on the crane crossbeam, and folding column is connected with the crane crossbeam, is connected with keel beam between the folding column of homonymy; Folding column comprises upper pillar stand and lower pillar stand, and upper pillar stand is connected by axle with the crane crossbeam, and the opposite side of axle is provided with fixed mechanism relatively; Also be provided with the first hydraulic actuating cylinder between upper pillar stand and the crane crossbeam, flexible thick stick one end of the first hydraulic actuating cylinder is connected with the crane crossbeam, and the other end is connected with upper pillar stand; Lower pillar stand is connected by axle with upper pillar stand, and the opposite side of axle is provided with fixed mechanism relatively; Also be provided with the second hydraulic actuating cylinder between lower pillar stand and the upper pillar stand, flexible thick stick one end of the second hydraulic actuating cylinder is connected with upper pillar stand, and the other end is connected with lower pillar stand; The first hydraulic actuating cylinder, the second hydraulic actuating cylinder are respectively by the Hydraulic Pump fuel feeding; The both sides of keel beam are provided with telescopic girder, and the telescopic girder bottom arranges the longitudinal extension wheel, and movement/wheel flutter that two ends arrange is connected with telescopic girder by telescoping cylinder.
The upper pillar stand of described homonymy also by upper pillar stand beam captive joint, is provided with auxiliary reinforcement between upper pillar stand and the upper pillar stand beam, and auxiliary reinforcement is provided with reinforced rib.
Described fixed mechanism is pneumatic lock pin; Pneumatic lock pin is captiveed joint with crane crossbeam, lower pillar stand upper pillar stand respectively with upper pillar stand when gauntry crane is worked; Pneumatic lock pin is opened when folding, sways after upper pillar stand, lower pillar stand are driven folding.
Describedly when gauntry crane is folding, open fixed mechanism, control the first hydraulic actuating cylinder jacking, the second hydraulic actuating cylinder shrinks, and upper pillar stand, lower pillar stand is swayed folding; When folding rear support, control that the first hydraulic actuating cylinder shrinks, the second hydraulic actuating cylinder jacking, make supports of swaying of upper pillar stand, lower pillar stand, pass through again the fixed mechanism captive joint.
Describedly when folding, adjust distance and direction by movement/wheel flutter; Moving after folding/wheel flutter on connecting drive device, move by movement/wheel flutter, perhaps moving/wheel flutter connects and drag thick stick, by dragging the thick stick traction or drawing to shift.
Describedly control by the operation bench that is arranged on the column when gauntry crane is folding, operation bench comprises hydraulic control system, circuit control system and pneumatic control system;
Hydraulic control system control Hydraulic Pump stretches or jacking thereby control it to the first hydraulic actuating cylinder, the second hydraulic actuating cylinder fuel feeding;
Pneumatic control system is controlled opening of fixed mechanism or fixing;
Circuit control system control electric crane move and hang liter; Longitudinal extension wheel, movement/wheel flutter also are connected with actuating device respectively, and circuit control system is also controlled the actuating device of dispensing longitudinal extension wheel, movement/wheel flutter.
Described longitudinal extension wheel is rail wheel, and its track is the grooved track;
The grooved track comprises track bottom and track baffle plate, and described track bottom is connected with ground by set pin, and the track baffle plate is arranged on the both sides of track bottom, and the longitudinal extension wheel slides in track, and the track baffle plate is not offset it;
Described rail wheel also can be mobile at railless hard ground.
Described grooved track is made of the more piece track, and joint is connected by draw-in groove with track between saving; Section header is provided with connecting pin, and the joint tail is provided with the spill draw-in groove.
Described movement/wheel flutter is connected with telescoping cylinder by the rotating shaft lock pin, the wheel flutter done for level after movement/wheel flutter shrinks uses, after gauntry crane was folding, movement/wheel flutter descended by telescoping cylinder, rolls factory building as movable pulley away from by towing transverse shifting.
Described telescoping cylinder is connected by steering-type three-phase locating dowel pin with movement/wheel flutter, and one of them pin is for steering yoke bolt, and all the other two are fixing lock pin;
When movement/wheel flutter shrank, fixedly lock pin was opened, and steering yoke bolt is realized turning to of movement/wheel flutter; When movement/wheel flutter was supported, fixedly lock pin supported, and turned to fixingly, and movement/wheel flutter can only transverse shifting at this moment.
Compared with prior art, the utlity model has following useful technique effect:
The folding gauntry crane that the utility model provides, design by foldable post and hydraulic actuating cylinder can realize the folding of gauntry crane, and by movement/wheel flutter can turn to, horizontal movement, realized the transition of gauntry crane, having solved current gauntry crane is difficult to shift the defective that Occupation coefficient is not high.
The folding gauntry crane that the utility model provides, also by the setting of longitudinal extension wheel, the rail of having realized gauntry crane moves and trackless moves, so that gauntry crane can shift when work flexibly.Expense has been saved in the construction that the boat car of supporting boat car hangs in the time of can also having avoided workshop building.
Description of drawings
Fig. 1 is Facad structure schematic diagram of the present utility model;
Fig. 2 is construction profile schematic diagram of the present utility model;
Fig. 3 is the structural representation after of the present utility model the folding;
Fig. 4 is the connection diagram of movement/wheel flutter;
Fig. 5 is the structural representation of grooved rail.
Wherein, 1 for movement/wheel flutter, 2 for lower pillar stand, 3 for upper pillar stand, 4 for crane crossbeam, 5 be the first hydraulic actuating cylinder, 6 be the second hydraulic actuating cylinder, 7 for the crane crossbeam, 8 for electric crane, 9 for keel beam, 10 for telescopic girder, 11 for longitudinal extension wheel, 12 for the upper pillar stand beam, 13 for auxiliary reinforcement, 14 for reinforced rib, 15 for drag thick stick, 16 for telescoping cylinder, 17 for steering yoke bolt, 18 for fixing lock pin, 19 for the grooved track, 20 for draw-in groove, 21 for connecting pin, 22 be that set pin, 23 is, 24 is the track baffle plate bottom the track.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done to describe in further detail, described is to explanation of the present utility model rather than restriction.
Referring to Fig. 1～Fig. 3, a kind of folding gauntry crane comprises crane crossbeam 4 and the electric crane 8 that is arranged on the crane crossbeam, and folding column is connected with crane crossbeam 4, is connected with keel beam 9 between the folding column of homonymy; Folding column comprises upper pillar stand 3 and lower pillar stand 2, and upper pillar stand 3 and crane crossbeam 4 are connected by axle, and the opposite side of axle is provided with fixed mechanism relatively; Flexible thick stick one end that also is provided with the first hydraulic actuating cylinder 5, the first hydraulic actuating cylinders 5 between upper pillar stand 3 and the crane crossbeam 4 is connected with crane crossbeam 4, and the other end is connected with upper pillar stand phase 3; Lower pillar stand 2 and upper pillar stand 3 are connected by axle, and the opposite side of axle is provided with fixed mechanism relatively; Flexible thick stick one end that also is provided with the second hydraulic actuating cylinder 6, the second hydraulic actuating cylinders 6 between lower pillar stand 2 and the upper pillar stand 3 is connected with upper pillar stand 3, and the other end is connected with lower pillar stand 2; The first hydraulic actuating cylinder 5, the second hydraulic actuating cylinder 6 are respectively by the Hydraulic Pump fuel feeding, thereby the supply cylinder pressure is realized the flexible of flexible thick stick two ends; The both sides of keel beam 9 are provided with telescopic girder 10, and telescopic girder 10 bottoms arrange longitudinal extension wheel 11, and movement/wheel flutter 1 that two ends arrange is connected with telescopic girder 10 by telescoping cylinder 16.
The first concrete hydraulic actuating cylinder 5 is the single-unit cylinder, by folding of hydraulic control system upper pillar stand; The second hydraulic actuating cylinder 6 is the more piece cylinder, by folding of hydraulic control system lower pillar stand;
Participate in Fig. 2, the upper pillar stand 3 of homonymy is provided with auxiliary reinforcement 13 by upper pillar stand beam 12 captive joints between upper pillar stand 4 and the upper pillar stand beam 12, and auxiliary reinforcement 13 is provided with reinforced rib 14, with its fixation of further reinforcement.
Concrete, described fixed mechanism is pneumatic lock pin; Pneumatic lock pin is captiveed joint with crane crossbeam 5, lower pillar stand 2 upper pillar stand 4 respectively with upper pillar stand 3 when gauntry crane is worked; Pneumatic lock pin is opened when folding, sways after upper pillar stand 3, lower pillar stand 2 are driven folding.This is that for the ease of operation, bayonet lock is pneumatic lock pin, controls by pneumatic control system because gauntry crane is up to 7-8m after supporting.
When gauntry crane is folding, open fixed mechanism, control 5 jackings of the first hydraulic actuating cylinder, 6 contractions of the second hydraulic actuating cylinder, make upper pillar stand 3, lower pillar stand 2 sway folding; When folding rear support, control that the first hydraulic actuating cylinder 5 shrinks, 6 jackings of the second hydraulic actuating cylinder, make supports of swaying of upper pillar stand 3, lower pillar stand 2, pass through again the fixed mechanism captive joint.
Referring to Fig. 3, when folding, adjust distance and direction by movement/wheel flutter 1; Moving after folding/wheel flutter 1 on connecting drive device, move by movement/wheel flutter, carry out in-plant transfer, perhaps moving/wheel flutter 1 connects and drag thick stick 15, by dragging thick stick 15 tractions or drawing to shift, to realize remote transition.
Concrete when gauntry crane is folding, to control by the operation bench that is arranged on the column, operation bench comprises hydraulic control system, circuit control system and pneumatic control system;
Hydraulic control system control Hydraulic Pump stretches or jacking thereby control it to the first hydraulic actuating cylinder 5, the second hydraulic actuating cylinder 6 fuel feeding;
Pneumatic control system is controlled opening of fixed mechanism or fixing;
Circuit control system control electric crane move and hang liter; Longitudinal extension wheel 11, movement/wheel flutter 1 also are connected with actuating device respectively, and circuit control system is also controlled the actuating device of dispensing longitudinal extension wheel, movement/wheel flutter.
Referring to Fig. 4, described movement/wheel flutter 1 is connected with telescoping cylinder 16 by the rotating shaft lock pin, and the wheel flutter done for level after movement/wheel flutter 1 shrinks uses, after gauntry crane is folding, movement/wheel flutter 1 descends by telescoping cylinder 16, rolls factory building as movable pulley away from by towing transverse shifting.
Described telescoping cylinder 16 is connected by steering-type three-phase locating dowel pin with movement/wheel flutter 1, and one of them pin is main 17 for turning to, and all the other two is fixing lock pin 18;
When movement/wheel flutter 1 shrank, fixedly lock pin 18 was opened, and steering yoke bolt 17 is realized turning to of movement/wheel flutter; When movement/wheel flutter supported, fixedly lock pin 18 supported, and realization turns to fixing, and this moment, movement/wheel flutter 1 can only transverse shifting.Behind connecting drive device, described movable pulley is drive wheel, in in-plant situation, provides power by its actuating device, implements transverse shifting by movable pulley.
Referring to Fig. 5, described longitudinal extension wheel 11 is rail wheel, and its track is grooved track 19;
Grooved track 19 comprises track bottom 23 and track baffle plate 24, described track bottom is connected with ground by set pin 22, track baffle plate 24 is arranged on the both sides of track bottom 23, and longitudinal extension wheel 11 slides in track, and track baffle plate 24 is not offset it;
Described rail wheel also can be mobile at railless hard ground (being generally the cement flooring).
Described grooved track 19 is made of the more piece track, and joint is connected by draw-in groove 20 with track between saving; Section header is provided with connecting pin 21, and the joint tail is provided with the spill draw-in groove, with rapid connection the between realizing joint and saving, and also for convenience detach.
Behind connecting drive device, described longitudinal extension wheel is drive wheel, drives it in orbit or trackless slides.
Claims (10)
1. a folding gauntry crane is characterized in that, comprises crane crossbeam and the electric crane that is arranged on the crane crossbeam, and folding column is connected with the crane crossbeam, is connected with keel beam between the folding column of homonymy; Folding column comprises upper pillar stand and lower pillar stand, and upper pillar stand is connected by axle with the crane crossbeam, and the opposite side of axle is provided with fixed mechanism relatively; Also be provided with the first hydraulic actuating cylinder between upper pillar stand and the crane crossbeam, flexible thick stick one end of the first hydraulic actuating cylinder is connected with the crane crossbeam, and the other end is connected with upper pillar stand; Lower pillar stand is connected by axle with upper pillar stand, and the opposite side of axle is provided with fixed mechanism relatively; Also be provided with the second hydraulic actuating cylinder between lower pillar stand and the upper pillar stand, flexible thick stick one end of the second hydraulic actuating cylinder is connected with upper pillar stand, and the other end is connected with lower pillar stand; The first hydraulic actuating cylinder, the second hydraulic actuating cylinder are respectively by the Hydraulic Pump fuel feeding; The both sides of keel beam are provided with telescopic girder, and the telescopic girder bottom arranges the longitudinal extension wheel, and movement/wheel flutter that two ends arrange is connected with telescopic girder by telescoping cylinder.
2. folding gauntry crane as claimed in claim 1 is characterized in that, the upper pillar stand of homonymy also by upper pillar stand beam captive joint, is provided with auxiliary reinforcement between upper pillar stand and the upper pillar stand beam, and auxiliary reinforcement is provided with reinforced rib.
3. folding gauntry crane as claimed in claim 1 is characterized in that, described fixed mechanism is pneumatic lock pin; Pneumatic lock pin is captiveed joint with crane crossbeam, lower pillar stand upper pillar stand respectively with upper pillar stand when gauntry crane is worked; Pneumatic lock pin is opened when folding, sways after upper pillar stand, lower pillar stand are driven folding.
4. folding gauntry crane as claimed in claim 1 is characterized in that, when gauntry crane is folding, opens fixed mechanism, controls the first hydraulic actuating cylinder jacking, the contraction of the second hydraulic actuating cylinder, upper pillar stand, lower pillar stand is swayed folding; When folding rear support, control that the first hydraulic actuating cylinder shrinks, the second hydraulic actuating cylinder jacking, make supports of swaying of upper pillar stand, lower pillar stand, pass through again the fixed mechanism captive joint.
5. folding gauntry crane as claimed in claim 4 is characterized in that, adjusts distance and direction by movement/wheel flutter when folding; Moving after folding/wheel flutter on connecting drive device, move by movement/wheel flutter, perhaps moving/wheel flutter connects and drag thick stick, by dragging the thick stick traction or drawing to shift.
6. folding gauntry crane as claimed in claim 4 is characterized in that, when gauntry crane is folding, controls by the operation bench that is arranged on the column, and operation bench comprises hydraulic control system, circuit control system and pneumatic control system;
Hydraulic control system control Hydraulic Pump stretches or jacking thereby control it to the first hydraulic actuating cylinder, the second hydraulic actuating cylinder fuel feeding;
Pneumatic control system is controlled opening of fixed mechanism or fixing;
Circuit control system control electric crane move and hang liter; Longitudinal extension wheel, movement/wheel flutter also are connected with actuating device respectively, and circuit control system is also controlled the actuating device of dispensing longitudinal extension wheel, movement/wheel flutter.
7. folding gauntry crane as claimed in claim 1 is characterized in that, described longitudinal extension wheel is rail wheel, and its track is the grooved track;
The grooved track comprises track bottom and track baffle plate, and described track bottom is connected with ground by set pin, and the track baffle plate is arranged on the both sides of track bottom, and the longitudinal extension wheel slides in track, and the track baffle plate is not offset it;
Described rail wheel also can be mobile at railless hard ground.
8. folding gauntry crane as claimed in claim 7 is characterized in that, described grooved track is made of the more piece track, and joint is connected by draw-in groove with track between saving; Section header is provided with connecting pin, and the joint tail is provided with the spill draw-in groove.
9. folding gauntry crane as claimed in claim 1, it is characterized in that, described movement/wheel flutter is connected with telescoping cylinder by the rotating shaft lock pin, the wheel flutter done for level after movement/wheel flutter shrinks uses, after gauntry crane is folding, movement/wheel flutter descends by telescoping cylinder, rolls factory building as movable pulley away from by towing transverse shifting.
10. folding gauntry crane as claimed in claim 9 is characterized in that, described telescoping cylinder is connected by steering-type three-phase locating dowel pin with movement/wheel flutter, and one of them pin is for steering yoke bolt, and all the other two are fixing lock pin;
When movement/wheel flutter shrank, fixedly lock pin was opened, and steering yoke bolt is realized turning to of movement/wheel flutter; When movement/wheel flutter was supported, fixedly lock pin supported, and turned to fixingly, and movement/wheel flutter can only transverse shifting at this moment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320166025 CN203199912U (en) | 2013-04-03 | 2013-04-03 | Folding gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320166025 CN203199912U (en) | 2013-04-03 | 2013-04-03 | Folding gantry crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203199912U true CN203199912U (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320166025 Expired - Fee Related CN203199912U (en) | 2013-04-03 | 2013-04-03 | Folding gantry crane |
Country Status (1)
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| CN (1) | CN203199912U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537906A (en) * | 2013-10-24 | 2014-01-29 | 江苏昆鼎数控设备制造有限公司 | Novel gantry |
| CN104773656A (en) * | 2015-04-03 | 2015-07-15 | 东风汽车公司 | Combined type folding portal crane |
| CN106081925A (en) * | 2016-08-05 | 2016-11-09 | 国网山东省电力公司龙口市供电公司 | A kind of power equipment elevator |
| CN106276626A (en) * | 2016-10-13 | 2017-01-04 | 科康起重机械（上海）有限公司 | A kind of collapsible gantry hoisting device |
| CN107337107A (en) * | 2017-06-20 | 2017-11-10 | 武威市津威环境科技有限责任公司 | A kind of folding Microhoist |
| CN108706470A (en) * | 2018-06-13 | 2018-10-26 | 安徽骏达起重机械有限公司 | Foldable crane |
| CN108773774A (en) * | 2018-06-13 | 2018-11-09 | 安徽骏达起重机械有限公司 | Foldable crane |
| CN108862046A (en) * | 2018-07-16 | 2018-11-23 | 武汉理工大学 | A kind of imitative crab formula avoidance crane |
| CN109911776A (en) * | 2019-03-25 | 2019-06-21 | 苏州荣宝升城市建设有限公司 | The full landform gantry crane of modular and bridge floor method for dismounting |
| CN110303970A (en) * | 2019-07-28 | 2019-10-08 | 天津市双象工程液压件有限责任公司 | A kind of crane truck |
| CN110329918A (en) * | 2019-07-28 | 2019-10-15 | 天津市双象工程液压件有限责任公司 | A kind of vehicle-mounted gantry hoisting device |
| CN110562858A (en) * | 2019-09-18 | 2019-12-13 | 河南省铁山起重设备有限公司 | High-stability beam lifting machine |
| CN111232851A (en) * | 2020-03-13 | 2020-06-05 | 湖南生物机电职业技术学院 | Folding crane |
| CN111994801A (en) * | 2020-09-11 | 2020-11-27 | 中国水利水电夹江水工机械有限公司 | Self-propelled hydraulic lifting method |
-
2013
- 2013-04-03 CN CN 201320166025 patent/CN203199912U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537906A (en) * | 2013-10-24 | 2014-01-29 | 江苏昆鼎数控设备制造有限公司 | Novel gantry |
| CN104773656A (en) * | 2015-04-03 | 2015-07-15 | 东风汽车公司 | Combined type folding portal crane |
| CN106081925A (en) * | 2016-08-05 | 2016-11-09 | 国网山东省电力公司龙口市供电公司 | A kind of power equipment elevator |
| CN106081925B (en) * | 2016-08-05 | 2017-08-22 | 国网山东省电力公司龙口市供电公司 | A kind of power equipment lift |
| CN106276626A (en) * | 2016-10-13 | 2017-01-04 | 科康起重机械（上海）有限公司 | A kind of collapsible gantry hoisting device |
| CN107337107B (en) * | 2017-06-20 | 2019-08-06 | 武威市津威环境科技有限责任公司 | A kind of folding Microhoist |
| CN107337107A (en) * | 2017-06-20 | 2017-11-10 | 武威市津威环境科技有限责任公司 | A kind of folding Microhoist |
| CN108706470A (en) * | 2018-06-13 | 2018-10-26 | 安徽骏达起重机械有限公司 | Foldable crane |
| CN108773774A (en) * | 2018-06-13 | 2018-11-09 | 安徽骏达起重机械有限公司 | Foldable crane |
| CN108862046A (en) * | 2018-07-16 | 2018-11-23 | 武汉理工大学 | A kind of imitative crab formula avoidance crane |
| CN108862046B (en) * | 2018-07-16 | 2019-08-02 | 武汉理工大学 | A kind of imitative crab formula avoidance crane |
| CN109911776A (en) * | 2019-03-25 | 2019-06-21 | 苏州荣宝升城市建设有限公司 | The full landform gantry crane of modular and bridge floor method for dismounting |
| CN110303970A (en) * | 2019-07-28 | 2019-10-08 | 天津市双象工程液压件有限责任公司 | A kind of crane truck |
| CN110329918A (en) * | 2019-07-28 | 2019-10-15 | 天津市双象工程液压件有限责任公司 | A kind of vehicle-mounted gantry hoisting device |
| CN110562858A (en) * | 2019-09-18 | 2019-12-13 | 河南省铁山起重设备有限公司 | High-stability beam lifting machine |
| CN110562858B (en) * | 2019-09-18 | 2020-10-13 | 河南省铁山起重设备有限公司 | High-stability beam lifting machine |
| CN111232851A (en) * | 2020-03-13 | 2020-06-05 | 湖南生物机电职业技术学院 | Folding crane |
| CN111232851B (en) * | 2020-03-13 | 2020-12-22 | 湖南生物机电职业技术学院 | Folding crane |
| CN111994801A (en) * | 2020-09-11 | 2020-11-27 | 中国水利水电夹江水工机械有限公司 | Self-propelled hydraulic lifting method |
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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: 20130918 Termination date: 20150403 |
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| EXPY | Termination of patent right or utility model |