CN114314386A - Automatic turning device for crane supporting legs - Google Patents
Automatic turning device for crane supporting legs Download PDFInfo
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- CN114314386A CN114314386A CN202111626616.6A CN202111626616A CN114314386A CN 114314386 A CN114314386 A CN 114314386A CN 202111626616 A CN202111626616 A CN 202111626616A CN 114314386 A CN114314386 A CN 114314386A
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- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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Abstract
The invention discloses an automatic overturning device for a crane supporting leg, and belongs to the field of supporting leg overturning. Automatic turning device of hoist landing leg includes: the installation fixing plate, the horizontal leg, fix the front surface installed in fixing plate; the vertical supporting leg hinged support is fixedly arranged on one side surface of the transverse supporting leg far away from the installation and fixation plate; the vertical hydraulic cylinder is fixedly arranged on the surface of the transverse supporting leg, and the lower end of the vertical hydraulic cylinder is provided with a telescopic vertical supporting leg; the vertical hydraulic cylinder and the vertical support leg hinged support are provided with linkage link mechanisms which are matched with each other, the lower end of each linkage link mechanism is fixedly connected with a sliding push rod, the surface of the vertical hydraulic cylinder is fixedly provided with a guide mechanism, and the outer wall of the vertical hydraulic cylinder, which is positioned below the guide mechanism, is fixedly provided with a limiting slide block; the invention can be quickly and mechanically recovered, effectively saves space, is convenient for packing and transportation, and can be quickly extended out when being unfolded to be put into operation in time.
Description
Technical Field
The invention relates to the technical field of support leg overturning, in particular to an automatic overturning device for a crane support leg.
Background
At present, the automatic turning modes of the crane supporting leg mainly comprise two modes, the first mode is that an additional oil cylinder is additionally arranged to push a chain or a connecting rod to drive the supporting leg to turn, the second mode is that a rack oil cylinder drives a gear to rotate, the gear is fixed on the supporting leg, thereby driving the supporting legs to rotate, however, the above two modes at the present stage can complete the overturning of the supporting legs, but all the devices need to be additionally provided with oil pressure pipelines, oil cylinders, gears, operating valves and the like, the structure is complex, the cost is high, special operating valves or switching valves are needed during operation, the operation is complicated, and the additional added pipeline and hydraulic component are easy to cause failure hidden trouble, in addition, the chassis of the crane has various types, in some special chassis frame-mounted cranes, the space is limited, and when the support leg is retracted, the support leg and the chassis can interfere with each other.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an automatic overturning device for a crane support leg.
In order to achieve the purpose, the invention adopts the following technical scheme:
automatic turning device of hoist landing leg includes:
the plate blocks are installed and fixed on the base plate,
the transverse supporting leg is fixedly arranged on the front surface of the fixed plate;
the vertical supporting leg hinged support is fixedly arranged on one side surface of the transverse supporting leg far away from the installation and fixation plate;
the vertical hydraulic cylinder is fixedly arranged on the surface of the transverse supporting leg, and the lower end of the vertical hydraulic cylinder is provided with a telescopic vertical supporting leg;
the vertical hydraulic cylinder and the vertical supporting leg hinged support are provided with linkage link mechanisms which are matched with each other, the lower end of each linkage link mechanism is fixedly connected with a sliding push rod, the surface of the vertical hydraulic cylinder is fixedly provided with a guide mechanism, and the outer wall of the lower portion of the vertical hydraulic cylinder, which is located at the guide mechanism, is fixedly provided with a limiting slide block.
Preferably, linkage link mechanism includes the head rod, the one end fixed mounting of head rod has a pivot, the other end fixed mounting of head rod has No. three pivots, the surface of No. three pivots is located the equal movable mounting of both sides face of head rod and has the third connecting rod, the surface of No. three pivots is close to one end position movable mounting and has the second connecting rod, the other end fixed mounting of second connecting rod has No. two pivots, the other end fixed mounting of third connecting rod has No. four pivots, the surface movable mounting of No. four pivots has sliding base.
Further, linkage link mechanism passes through first connecting rod and pivot and perpendicular landing leg free bearing swing joint, the second connecting rod passes through pivot and vertical pneumatic cylinder swing joint No. two, first connecting rod, second connecting rod and the third connecting rod passes through mutual swing joint of pivot No. three, the third connecting rod passes through pivot No. four and sliding base swing joint.
Furthermore, the linkage connecting rod mechanism is fixedly connected with the sliding push rod through the sliding base, and a push rod top plate is fixedly mounted at the lower end of the sliding push rod.
Furthermore, guiding mechanism includes a fixed block and No. two fixed blocks, guiding mechanism through a fixed block with No. two fixed block fixed mounting in the surface of vertical pneumatic cylinder, a fixed block with fixed connection installs the slide rail between No. two fixed blocks.
Furthermore, the surface of No. two fixed blocks with spacing slider's surface has all seted up spacing through-hole, slide push rod passes No. two fixed blocks and spacing slider's spacing through-hole in proper order.
Furthermore, the sliding base is slidably sleeved on the surface of the sliding rail, the surface of the sliding rail is a polished surface, and a layer of lubricating oil is coated on the surface of the sliding rail.
Preferably, a control device is fixedly mounted on one side of the surface of the vertical hydraulic cylinder, which is positioned on the guide mechanism.
Furthermore, a control wire is fixedly connected and installed on the surface of the control device, a supporting plate is fixedly connected and installed at the lower end of the telescopic vertical supporting leg, and anti-skid grains are fixedly installed on the lower surface of the supporting plate.
Preferably, the transverse support leg is fixedly installed with the crane body through an installation fixing plate, and the transverse support leg is fixedly installed with the installation fixing plate through a welding rod.
Compared with the prior art, the invention provides an automatic overturning device for a crane supporting leg, which has the following beneficial effects:
1. this automatic turning device of hoist landing leg, the automatic turning device's of heavy quick-witted landing leg setting leads to flexible perpendicular landing leg shrink and promotes sliding push rod, and sliding push rod touches the operation of linkage link mechanism again to drive vertical hydraulic cylinder and the anticlockwise upset of flexible perpendicular landing leg to 175 degrees angle, withdraw it totally at last, and then the mechanization that can be quick is retrieved.
The parts which are not involved in the device are the same as or can be realized by the prior art, the invention can be quickly and mechanically recovered, so that the space can be effectively saved, the packaging and the transportation are convenient, and otherwise, the device can also be quickly extended out when being unfolded and can be put into operation in time.
Drawings
FIG. 1 is a schematic diagram of the automatic overturning device for crane supporting legs, which is provided by the invention, of overturning at 0 degree in the overall structure;
FIG. 2 is a schematic view of the automatic overturning device for crane supporting legs, which is provided by the invention, and is overturned by 90 degrees in the whole structure;
fig. 3 is a schematic diagram of the whole structure of the automatic overturning device for the crane support leg of the invention overturning 175 degrees.
In the figure: 1. installing a fixed plate; 2. a transverse leg; 3. a vertical support leg hinged support; 4. a vertical hydraulic cylinder; 5. a linkage link mechanism; 501. a first rotating shaft; 502. a first connecting rod; 503. a second rotating shaft; 504. a second connecting rod; 505. a third rotating shaft; 506. a third connecting rod; 507. a fourth rotating shaft; 508. a slide base; 6. a guide mechanism; 601. a first fixed block; 602. a second fixed block; 603. a slide rail; 7. a control device; 701. a control wire; 8. a limiting slide block; 9. a telescopic vertical support leg; 901. a foot supporting plate; 10. a sliding push rod; 1001. the push rod is provided with a top plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-3, an automatic turning device for crane legs comprises: the installation fixing plate 1 and the transverse supporting legs 2 are fixedly installed on the front surface of the fixing plate 1; the vertical supporting leg hinged support 3 is fixedly arranged on one side surface of the transverse supporting leg 2 far away from the installation and fixation plate 1; the vertical hydraulic cylinder 4 is fixedly arranged on the surface of the transverse supporting leg 2, and the lower end of the vertical hydraulic cylinder 4 is provided with a telescopic vertical supporting leg 9;
the vertical hydraulic cylinder 4 and the vertical supporting leg hinged support 3 are provided with linkage link mechanisms 5 which are matched with each other, the lower ends of the linkage link mechanisms 5 are fixedly connected with sliding push rods 10, the surface of the vertical hydraulic cylinder 4 is fixedly provided with a guide mechanism 6, and the outer wall of the vertical hydraulic cylinder 4, which is positioned below the guide mechanism 6, is fixedly provided with a limiting slide block 8.
The invention comprises a mounting and fixing plate 1, a transverse supporting leg 2 is fixedly arranged on the front surface of the mounting and fixing plate 1, a vertical supporting leg hinged support 3 is fixedly arranged at the other end of the transverse supporting leg 2, a vertical hydraulic cylinder 4 is fixedly arranged on the surface of the transverse supporting leg 2, a linkage connecting rod mechanism 5 is movably connected and arranged on the surface of the vertical supporting leg hinged support 3, a guide mechanism 6 is fixedly arranged on the surface of the vertical hydraulic cylinder 4, a control device 7 is fixedly arranged on one side of the guide mechanism 6 on the surface of the vertical hydraulic cylinder 4, a limit slide block 8 is fixedly arranged below the guide mechanism 6 on the surface of the vertical hydraulic cylinder 4, a telescopic vertical supporting leg 9 is movably arranged at the lower end of the vertical hydraulic cylinder 4, a sliding push rod 10 is fixedly connected and arranged at the lower end of the linkage connecting rod mechanism 5, wherein the limit slide block 8 plays a role of limiting the running direction of the sliding push rod 10, and the sliding push rod 10 is pushed by the telescopic vertical supporting leg 9, the sliding push rod 10 touches the linkage mechanism 5 to operate again to drive the anticlockwise turning of the vertical hydraulic cylinder 4 and the telescopic vertical supporting leg 9 to an angle of 175 degrees, and finally, the whole vertical hydraulic cylinder is retracted, so that the mechanical recovery can be fast, the space can be effectively saved, the packaging and the transportation are convenient, otherwise, the stretching-out can be fast when the unfolding operation is carried out, and the operation can be timely.
Example 2:
referring to fig. 1-3, the automatic turning device for crane outriggers is substantially the same as that of embodiment 1, and further, the transverse outriggers 2 are fixedly installed with the crane body through the installation fixing plate 1, and the transverse outriggers 2 are fixedly installed with the installation fixing plate 1 through welding rods; the linkage link mechanism 5 comprises a first rotating shaft 501, a first connecting rod 502, a second rotating shaft 503, a second connecting rod 504, a third rotating shaft 505, a third connecting rod 506, a fourth rotating shaft 507 and a sliding base 508, wherein the first rotating shaft 501 is fixedly arranged at one end of the first connecting rod 502, the third rotating shaft 505 is fixedly arranged at the other end of the first connecting rod 502, the third connecting rod 506 is movably arranged on two side surfaces of the third rotating shaft 505, the second connecting rod 504 is movably arranged at a position, close to one end, on the surface of the third rotating shaft 505, the second rotating shaft 503 is fixedly arranged at the other end of the second connecting rod 504, the fourth rotating shaft 507 is fixedly arranged at the other end of the third connecting rod 506, and the sliding base 508 is movably arranged on the surface of the fourth rotating shaft 507, wherein the linkage link mechanism 5 can push the third connecting rod 506 by pushing the sliding base 508, the third connecting rod 506 rotates under the linkage action of the first connecting rod 502 and the second connecting rod 504 in the movement process, so that the vertical hydraulic cylinder 4 is turned anticlockwise; the linkage link mechanism 5 is movably connected with the vertical leg hinged support 3 through a first connecting rod 502 and a first rotating shaft 501, a second connecting rod 504 is movably connected with the vertical hydraulic cylinder 4 through a second rotating shaft 503, the first connecting rod 502, the second connecting rod 504 and a third connecting rod 506 are movably connected with each other through a third rotating shaft 505, and the third connecting rod 506 is movably connected with a sliding base 508 through a fourth rotating shaft 507; the linkage link mechanism 5 is fixedly connected with the sliding push rod 10 through a sliding base 508, and a push rod top plate 1001 is fixedly installed at the lower end of the sliding push rod 10; the guide mechanism 6 comprises a first fixed block 601, a second fixed block 602 and a slide rail 603, the guide mechanism 6 is fixedly arranged on the surface of the vertical hydraulic cylinder 4 through the first fixed block 601 and the second fixed block 602, the slide rail 603 is fixedly connected and arranged between the first fixed block 601 and the second fixed block 602, the surface of the second fixed block 602 and the surface of the limiting slide block 8 are both provided with limiting through holes, and the slide push rod 10 sequentially penetrates through the limiting through holes of the second fixed block 602 and the limiting slide block 8; the sliding base 508 is slidably sleeved on the surface of the sliding rail 603, the surface of the sliding rail 603 is a polished surface, and a layer of lubricating oil is coated on the surface of the sliding rail 603; the control wire 701 is fixedly connected and installed on the surface of the control device 7, the supporting foot plate 901 is fixedly connected and installed at the lower end of the telescopic vertical supporting leg 9, anti-skid grains are fixedly installed on the lower surface of the supporting foot plate 901, and the ground can be prevented from being wet and slippery in the supporting operation due to the arrangement of the anti-skid grains, so that the effect of increasing friction force is achieved.
It should be noted that, when the automatic turning device for crane supporting legs is used, after the crane lifting operation is completed, an operator firstly retracts the telescopic vertical supporting legs 9 upwards into the vertical hydraulic cylinder 4, at the same time, the supporting foot plate 901 is separated from the ground by a certain distance, when the supporting foot plate 901 touches the push rod top plate 1001 at the lower end of the sliding push rod 10, the sliding push rod 10 continues to move upwards along the supporting foot plate 901, so as to drive the sliding base 508 to move upwards along the sliding rails 603 in the guide mechanism 6, the sliding base 508 moves to drive the whole linkage link mechanism 5 to drive the telescopic vertical supporting legs 9 and the vertical hydraulic cylinder 4 to start to rotate anticlockwise, so as to realize that the telescopic vertical supporting legs 9 and the vertical hydraulic cylinder 4 turn upwards, when the telescopic vertical supporting legs 9 are all retracted into the vertical hydraulic cylinder 4, the turning angle is 175 degrees, at this time, the operator retracts the transverse supporting legs 2 completely, thereby completing the recovery operation process of the whole supporting leg, in addition, when the crane starts to operate in use, before the operation, an operator firstly extends all the transverse supporting legs 2, then starts to extend the telescopic vertical supporting legs 9 from the vertical hydraulic cylinder 4, when the foot supporting plate 901 is separated from the sliding push rod 10, the telescopic vertical supporting leg 9 and the vertical hydraulic cylinder 4 rotate clockwise and downwards due to the self gravity, wherein the speed of the downward rotation is determined by the speed of the extension of the telescopic vertical leg 9, so that the operator can control the downward turning speed of the telescopic vertical leg 9 at will, and along with the downward extension of the telescopic vertical leg 9, when the leg plate 901 is not in contact with the sliding push rod 10 any more, the telescopic vertical supporting leg 9 is turned to be perpendicular to the ground by 0 degree, and at the moment, the telescopic vertical supporting leg 9 continues to extend downwards to contact the ground, so that the extending operation of the whole supporting leg is completed.
Example 3:
referring to fig. 1-3, the automatic turning device of crane landing leg comprises a mounting and fixing plate 1, a horizontal landing leg 2 is fixedly installed on the front surface of the mounting and fixing plate 1, a vertical landing leg hinged support 3 is fixedly installed at the other end of the horizontal landing leg 2, a vertical hydraulic cylinder 4 is fixedly installed on the surface of the horizontal landing leg 2, a linkage link mechanism 5 is movably connected and installed on the surface of the vertical landing leg hinged support 3, a guide mechanism 6 is fixedly installed on the surface of the vertical hydraulic cylinder 4, a control device 7 is fixedly installed on one side, located on the surface of the guide mechanism 6, of the vertical hydraulic cylinder 4, a limiting slide block 8 is fixedly installed below the guide mechanism 6, a telescopic vertical landing leg 9 is movably installed at the lower end of the vertical hydraulic cylinder 4, a sliding push rod 10 is fixedly connected and installed at the lower end of the linkage link mechanism 5, wherein the limiting slide block 8 plays a role in limiting the operation direction of the sliding push rod 10.
The surface of the vertical hydraulic cylinder 4 is fixedly provided with a control device 7 at one side of the guide mechanism 6.
The control wire 701 is fixedly connected and installed on the surface of the control device 7, the supporting foot plate 901 is fixedly connected and installed at the lower end of the telescopic vertical supporting leg 9, anti-skid grains are fixedly installed on the lower surface of the supporting foot plate 901, and the ground can be prevented from being wet and slippery in the supporting operation due to the arrangement of the anti-skid grains, so that the effect of increasing friction force is achieved.
Horizontal landing leg 2 is through installation fixed plate 1 and jack-up fuselage fixed mounting, and horizontal landing leg 2 passes through welding rod and 1 fixed mounting of installation fixed plate, connects more firmly.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. Automatic turning device of hoist landing leg, its characterized in that includes:
a fixed plate (1) is arranged,
the transverse supporting legs (2) are fixedly arranged on the front surface of the fixed plate (1);
the vertical supporting leg hinged support (3) is fixedly arranged on one side surface of the transverse supporting leg (2) far away from the installation and fixation plate block (1);
the vertical hydraulic cylinder (4) is fixedly arranged on the surface of the transverse supporting leg (2), and the lower end of the vertical hydraulic cylinder (4) is provided with a telescopic vertical supporting leg (9);
the hydraulic lifting device is characterized in that a linkage connecting rod mechanism (5) which is matched with each other is arranged on the vertical hydraulic cylinder (4) and the vertical supporting leg hinged support (3), a sliding push rod (10) is fixedly connected to the lower end of the linkage connecting rod mechanism (5), a guide mechanism (6) is fixedly installed on the surface of the vertical hydraulic cylinder (4), and a limiting slide block (8) is fixedly installed on the outer wall of the lower portion, located on the guide mechanism (6), of the vertical hydraulic cylinder (4).
2. The crane leg automatic tipping device according to claim 1, characterized in that the linkage (5) comprises a first connecting rod (502), one end of the first connecting rod (502) is fixedly provided with a first rotating shaft (501), the other end of the first connecting rod (502) is fixedly provided with a third rotating shaft (505), a third connecting rod (506) is movably arranged on the surface of the third rotating shaft (505) and positioned on two side surfaces of the first connecting rod (502), a second connecting rod (504) is movably arranged on the surface of the third rotating shaft (505) near one end, the other end of the second connecting rod (504) is fixedly provided with a second rotating shaft (503), the other end of the third connecting rod (506) is fixedly provided with a fourth rotating shaft (507), and a sliding base (508) is movably arranged on the surface of the fourth rotating shaft (507).
3. The automatic overturning device for the crane support leg is characterized in that the linkage link mechanism (5) is movably connected with the vertical support leg hinged support (3) through a first connecting rod (502) and a first rotating shaft (501), the second connecting rod (504) is movably connected with the vertical hydraulic cylinder (4) through a second rotating shaft (503), the first connecting rod (502), the second connecting rod (504) and the third connecting rod (506) are movably connected with each other through a third rotating shaft (505), and the third connecting rod (506) is movably connected with the sliding base (508) through a fourth rotating shaft (507).
4. The automatic overturning device for the crane support leg according to claim 3, wherein the linkage link mechanism (5) is fixedly connected with a sliding push rod (10) through a sliding base (508), and a push rod top plate (1001) is fixedly installed at the lower end of the sliding push rod (10).
5. The automatic overturning device for the crane support leg according to claim 4, wherein the guide mechanism (6) comprises a first fixed block (601) and a second fixed block (602), the guide mechanism (6) is fixedly installed on the surface of the vertical hydraulic cylinder (4) through the first fixed block (601) and the second fixed block (602), and a sliding rail (603) is fixedly connected and installed between the first fixed block (601) and the second fixed block (602).
6. The automatic overturning device for the crane supporting leg is characterized in that limiting through holes are formed in the surface of the second fixing block (602) and the surface of the limiting sliding block (8), and the sliding push rod (10) sequentially penetrates through the limiting through holes of the second fixing block (602) and the limiting sliding block (8).
7. The automatic overturning device for the crane leg as claimed in claim 6, wherein the sliding base (508) is slidably sleeved on the surface of the sliding rail (603), the surface of the sliding rail (603) is a polished surface, and the surface of the sliding rail (603) is coated with a layer of lubricating oil.
8. The automatic overturning device for the crane leg according to claim 1, characterized in that a control device (7) is fixedly arranged on the surface of the vertical hydraulic cylinder (4) on one side of the guide mechanism (6).
9. The automatic overturning device for the crane support leg according to claim 8, wherein a control wire (701) is fixedly connected and installed on the surface of the control device (7), a supporting plate (901) is fixedly connected and installed at the lower end of the telescopic vertical support leg (9), and anti-skid grains are fixedly installed on the lower surface of the supporting plate (901).
10. The automatic overturning device for crane legs according to claim 1, wherein the transverse legs (2) are fixedly installed with the crane body through the installation fixing plate (1), and the transverse legs (2) are fixedly installed with the installation fixing plate (1) through welding rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111626616.6A CN114314386A (en) | 2021-12-28 | 2021-12-28 | Automatic turning device for crane supporting legs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111626616.6A CN114314386A (en) | 2021-12-28 | 2021-12-28 | Automatic turning device for crane supporting legs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114314386A true CN114314386A (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111626616.6A Pending CN114314386A (en) | 2021-12-28 | 2021-12-28 | Automatic turning device for crane supporting legs |
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| Country | Link |
|---|---|
| CN (1) | CN114314386A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2116210C1 (en) * | 1997-08-04 | 1998-07-27 | Закрытое акционерное общество "НК Уралтерминалмаш" | Outrigger |
| CN202643181U (en) * | 2012-06-29 | 2013-01-02 | 湖南大汉起重科技有限公司 | Automatic turnover mechanism for support oil cylinder |
| JP2017019633A (en) * | 2015-07-10 | 2017-01-26 | 古河ユニック株式会社 | Outrigger device for on-vehicle crane |
| CN110997548A (en) * | 2017-08-09 | 2020-04-10 | 株式会社多田野 | Support leg device |
| CN112919343A (en) * | 2021-01-29 | 2021-06-08 | 三一帕尔菲格特种车辆装备有限公司 | Automatic upset landing leg mechanism, strutting arrangement and engineering machine tool |
-
2021
- 2021-12-28 CN CN202111626616.6A patent/CN114314386A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2116210C1 (en) * | 1997-08-04 | 1998-07-27 | Закрытое акционерное общество "НК Уралтерминалмаш" | Outrigger |
| CN202643181U (en) * | 2012-06-29 | 2013-01-02 | 湖南大汉起重科技有限公司 | Automatic turnover mechanism for support oil cylinder |
| JP2017019633A (en) * | 2015-07-10 | 2017-01-26 | 古河ユニック株式会社 | Outrigger device for on-vehicle crane |
| CN110997548A (en) * | 2017-08-09 | 2020-04-10 | 株式会社多田野 | Support leg device |
| CN112919343A (en) * | 2021-01-29 | 2021-06-08 | 三一帕尔菲格特种车辆装备有限公司 | Automatic upset landing leg mechanism, strutting arrangement and engineering machine tool |
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