CN105417413B - Crane and supporting leg structure thereof - Google Patents
Crane and supporting leg structure thereof Download PDFInfo
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- CN105417413B CN105417413B CN201510885710.1A CN201510885710A CN105417413B CN 105417413 B CN105417413 B CN 105417413B CN 201510885710 A CN201510885710 A CN 201510885710A CN 105417413 B CN105417413 B CN 105417413B
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- supporting leg
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- leg
- leg structure
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- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
- B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention provides a crane and a supporting leg structure thereof, wherein the supporting leg structure comprises a supporting leg body and a supporting leg vertical oil cylinder arranged on the supporting leg body, wherein the supporting leg body is provided with a containing cavity, and the supporting leg vertical oil cylinder is provided with a first position for supporting the supporting leg body and a second position contained in the containing cavity. The supporting leg structure solves the problem that the supporting leg structure of the crane in the prior art is large in size in the height direction.
Description
Technical field
The present invention relates to technical field of engineering machinery, in particular to a kind of crane and its leg structure.
Background technology
At present, existing crane support structure has two kinds of forms, as depicted in figs. 1 and 2, by 1, two grades of branch of one-level supporting leg
Leg 2, supporting leg Vertical Cylinders 3 are constituted.The topmost difference of leg structure of two kinds of structure types is that the structure of two grades of supporting legs 2 has
Institute is different：Supporting leg Vertical Cylinders 3 in Fig. 1 are arranged on two grades of inside of supporting leg 2, are mainly used in the radiation of hoister in large tonnage
Type leg structure；Supporting leg Vertical Cylinders 3 in Fig. 2 are predominantly located in two grades of outsides of supporting leg 2, are mainly used in medium and small tonnage and rise
The H type leg structures of heavy-duty machine.
However, as shown in figure 1, in hoister in large tonnage, supporting leg frequently with radial pattern supporting leg, its complex structure, manufacture
Difficulty is big, simultaneously because after supporting leg shrinks, also need to be folded against vehicle frame both sides, in order to there is space to place supporting leg, it is necessary to reduce part
The distance between bridge, directly affects carload distribution and topology layout, so as to increase design difficulty.
As shown in Fig. 2 in small and medium-sized car crane, supporting leg is frequently with H type supporting legs, but medium and small tonnage crane chassis
It is highly relatively low, and H type height of landing leg is relatively large, is unfavorable for that space is arranged, for rear side supporting leg, its height is straight
Connect the size for determining vehicle departure angle.
In sum, traditional automobile crane supporting leg has following shortcoming：
(1) size in height of landing leg direction is larger, is unfavorable for that space is arranged；
(2) complex structure, is not easy to detachable maintaining and manufacture；
(3) design difficulty and main screw lift of supporting leg, vehicle frame, vehicle bridge be increased.
The content of the invention
It is a primary object of the present invention to provide a kind of crane and its leg structure, to solve lifting of the prior art
The larger-size problem of the short transverse of the leg structure of machine.
To achieve these goals, according to an aspect of the invention, there is provided a kind of leg structure of crane, including
Supporting leg body and the supporting leg Vertical Cylinders on supporting leg body, are provided with accommodating chamber, supporting leg Vertical Cylinders on supporting leg body
With the first position for support leg body and the second place for being contained in accommodating chamber.
Further, leg structure also includes：Drive device, drive device and supporting leg Vertical Cylinders drive connection, drive
Supporting leg Vertical Cylinders maintain first position or carry out position conversion between the first position and the second position.
Further, supporting leg Vertical Cylinders are installed in rotation on supporting leg body, and drive device includes overturning oil cylinder, turns over
The one end for turning oil cylinder is connected with supporting leg body, and the other end of overturning oil cylinder is connected with the middle part of supporting leg Vertical Cylinders.
Further, the opening connected with accommodating chamber is provided with supporting leg body, supporting leg Vertical Cylinders are located in opening.
Further, leg structure also includes auxiliary cylinder, and one end of auxiliary cylinder is connected with supporting leg body, auxiliary cylinder
The other end and supporting leg Vertical Cylinders drive connection, supporting leg Vertical Cylinders are arranged on supporting leg body by auxiliary cylinder.
Further, auxiliary cylinder and supporting leg Vertical Cylinders are connected by bearing pin, and edge is provided with the side wall of supporting leg body
The bar hole that vertical direction extends, bearing pin is arranged in bar hole.
Further, the bottom of supporting leg body is provided with the first supporting plate, and is provided with the cylinder body of supporting leg Vertical Cylinders
Two supporting plates, when supporting leg Vertical Cylinders are located at first position, the first supporting plate is abutted with the second supporting plate.
Further, when supporting leg Vertical Cylinders be in the second place when, supporting leg Vertical Cylinders along supporting leg body extension side
To being contained in accommodating chamber.
Further, the avoidance hole for avoiding supporting leg Vertical Cylinders is provided with the end plate of supporting leg body.
Further, limiting plate is provided with supporting leg body, downward opening locating slot is provided with limiting plate, work as supporting leg
When Vertical Cylinders are in the second place, supporting leg Vertical Cylinders are fastened in locating slot.
According to another aspect of the present invention, there is provided a kind of crane, including leg structure, leg structure is above-mentioned branch
Leg structure.
The leg structure of the crane in the present invention includes supporting leg body and supporting leg Vertical Cylinders, due to being set on supporting leg body
Accommodating chamber is equipped with, and supporting leg Vertical Cylinders have first position and the second place for being contained in accommodating chamber for supporting leg body,
When supporting leg Vertical Cylinders are in first position, the leg structure is in running order, when supporting leg Vertical Cylinders are in second
When putting, the leg structure is in off working state.Due to when leg structure be in off working state when, the supporting leg Vertical Cylinders position
In in accommodating chamber, then, this is just saved greatly the space of the leg structure, simplifies leg structure, solves existing skill
The larger-size problem of the short transverse of the leg structure of the crane in art.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, of the invention to show
Meaning property and its illustrates, for explaining the present invention, not constitute inappropriate limitation of the present invention embodiment.In the accompanying drawings：
Fig. 1 shows the schematic diagram of the one embodiment according to leg structure of the prior art；
Fig. 2 shows the schematic diagram of another embodiment according to leg structure of the prior art；
Fig. 3 shows the structural representation of the embodiment of leg structure of the invention；
Fig. 4 shows the front view of the leg structure in Fig. 3；
State diagram when Fig. 5 shows that the leg structure in Fig. 3 is in running order；
Fig. 6 shows the A portions enlarged drawing of the leg structure in Fig. 5；
Fig. 7 shows the state diagram of leg structure in Fig. 3 when supporting leg Vertical Cylinders are moved down；
Fig. 8 shows the B portions enlarged drawing of the leg structure in Fig. 7；
Fig. 9 shows the state diagram of leg structure in Fig. 3 when supporting leg Vertical Cylinders rotate 45 degree；
Figure 10 shows that the leg structure in Fig. 3 is contained in the state diagram in accommodating chamber in supporting leg Vertical Cylinders；
Structural representation when Figure 11 shows that leg structure in Fig. 3 is in off working state；
Sectional view when Figure 12 shows leg structure in Fig. 3 in working order；And
Figure 13 shows the sectional view of leg structure in Fig. 3 in off working state.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, supporting leg body；11st, accommodating chamber；12nd, it is open；13rd, bar hole；14th, end plate；20th, supporting leg Vertical Cylinders；30th, turn over
Turn oil cylinder；40th, auxiliary cylinder；50th, bearing pin；61st, the first supporting plate；62nd, the second supporting plate；70th, limiting plate；80th, support foot plate；
91st, the first line；92nd, the second line.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
This implementation provides a kind of leg structure of crane, refer to Fig. 3 to Figure 13, and the leg structure includes supporting leg sheet
Body 10 and the supporting leg Vertical Cylinders 20 on supporting leg body 10, are provided with accommodating chamber 11 on supporting leg body 10, supporting leg is vertical
Oil cylinder 20 has the first position and the second place for being contained in accommodating chamber 11 for support leg body 10.
The leg structure of the crane in the present embodiment includes supporting leg body 10 and supporting leg Vertical Cylinders 20, due to supporting leg sheet
Accommodating chamber 11 is provided with body 10, and supporting leg Vertical Cylinders 20 are with the first position for supporting leg body 10 and are contained in receiving
The second place in chamber 11, when supporting leg Vertical Cylinders 20 are in first position, the leg structure is in running order, when supporting leg hangs down
When straight oil cylinder 20 is in the second place, the leg structure is in off working state.
Because when leg structure is in off working state, the supporting leg Vertical Cylinders 20 are located in accommodating chamber 11, then, this
Just the space of the leg structure is saved greatly, leg structure is simplified, the supporting leg of crane of the prior art is solved
The larger-size problem of the short transverse of structure.
In the present embodiment, leg structure also includes：Drive device, drive device drives with supporting leg Vertical Cylinders 20 and connects
Connect, drive supporting leg Vertical Cylinders 20 to maintain first position or carry out position conversion between the first position and the second position.
The present embodiment can more easily drive the supporting leg Vertical Cylinders 20 to maintain first by setting drive device
The second place is transported in position, and then makes the leg structure in running order or off working state.
In the present embodiment, supporting leg Vertical Cylinders 20 are installed in rotation on supporting leg body 10, and drive device includes turning over
Turn oil cylinder 30, one end of overturning oil cylinder 30 is connected with supporting leg body 10, the other end and the supporting leg Vertical Cylinders 20 of overturning oil cylinder 30
Middle part connection.So, the rotary motion of supporting leg Vertical Cylinders 20 can be more easily driven, and then by supporting leg Vertical Cylinders 20
It is contained in accommodating chamber 11.
In the present embodiment, the opening 12 connected with accommodating chamber 11, supporting leg Vertical Cylinders 20 are provided with supporting leg body 10
It is located in opening 12.Preferably, opening 12 is strip gab, and supporting leg Vertical Cylinders 20 are inverted into accommodating chamber 11 through opening 12
It is interior.
In the present embodiment, leg structure also includes auxiliary cylinder 40, and one end and the supporting leg body 10 of auxiliary cylinder 40 connect
Connect, the other end and the drive connection of supporting leg Vertical Cylinders 20 of auxiliary cylinder 40, supporting leg Vertical Cylinders 20 are pacified by auxiliary cylinder 40
On supporting leg body 10.Preferably, overturning oil cylinder 30 is arranged in accommodating chamber 11.
In the present embodiment, auxiliary cylinder 40 and supporting leg Vertical Cylinders 20 are connected by bearing pin 50, the side of supporting leg body 10
The bar hole 13 being extends in the vertical direction is provided with wall, bearing pin 50 is arranged in bar hole 13.
Bearing pin 50 is arranged on the bar hole by the present embodiment by setting bar hole 13 on the side wall of supporting leg body 10
13, supporting leg Vertical Cylinders 20 can be more easily adjusted in the position of vertical direction.
As shown in Fig. 5 to Fig. 8, bearing pin 50 passes through the pin-and-hole of the piston rod head of auxiliary cylinder 40, and one end is vertical with supporting leg
The housing connection of oil cylinder 20, the key-shaped hole (bar hole 13) on the side plate of other end insertion supporting leg body 10.When auxiliary cylinder 40 is stretched
When long, piston rod pushes up supporting leg Vertical Cylinders 20 along key-shaped hole.Supporting leg Vertical Cylinders 20 are with supporting leg body 10 by connecing
The contact of contacting surface (contact surface between the first supporting plate 61 and the second supporting plate 62 in Fig. 5) and pushing away for overturning oil cylinder 30
Power is fixed.
It can be seen that, when needing to be contained in supporting leg Vertical Cylinders 20 in accommodating chamber 11, drive first auxiliary cylinder 40
Supporting leg Vertical Cylinders 20 are moved down, and making overturning oil cylinder 30 drive the rotary motion of supporting leg Vertical Cylinders 20, and then supporting leg are hung down
Straight oil cylinder 20 is driven into accommodating chamber 11.So, can prevent supporting leg Vertical Cylinders 20 in switching process with supporting leg body 10
Between interfere.
As shown in Figure 10, supporting leg Vertical Cylinders 20 can be driven in first position and second in order to ensure overturning oil cylinder 30
Changed between putting, between the pin joint and overturning oil cylinder 30 and supporting leg Vertical Cylinders 20 between overturning oil cylinder 30 and supporting leg body 10
Pin joint between connecting line be the first line 91, pin joint and auxiliary cylinder 40 between overturning oil cylinder 30 and supporting leg body 10
It is the second line 92 with the connecting line between the pin joint between supporting leg Vertical Cylinders 20, between the first line 91 and horizontal plane
Angle is more than the angle between the second line 92 and horizontal plane.
In the present embodiment, the bottom of supporting leg body 10 is provided with the first supporting plate 61, the cylinder body of supporting leg Vertical Cylinders 20
On be provided with the second supporting plate 62, when supporting leg Vertical Cylinders 20 are located at first position, the first supporting plate 61 and the second supporting plate
62 abut.
The present embodiment can make supporting leg Vertical Cylinders 20 first by setting the first supporting plate 61 and the second supporting plate 62
During position, support effect of the supporting leg body 10 to supporting leg Vertical Cylinders 20 is improved.
In the present embodiment, when supporting leg Vertical Cylinders 20 are in the second place, supporting leg Vertical Cylinders 20 are along supporting leg body
10 bearing of trend is contained in accommodating chamber 11.So, the space of the leg structure can largely be saved.
In the present embodiment, the avoidance hole for avoiding supporting leg Vertical Cylinders 20 is provided with the end plate 14 of supporting leg body 10.This
, more easily can be transferred to the supporting leg Vertical Cylinders 20 in accommodating chamber 11 by sample.Preferably, the avoidance hole is downward opening
U-lag.
In the present embodiment, limiting plate 70 is provided with supporting leg body 10, it is downward opening fixed to be provided with limiting plate 70
Position groove, when supporting leg Vertical Cylinders 20 are in the second place, supporting leg Vertical Cylinders 20 are fastened in locating slot.Preferably, this is determined
Position groove is the U-lag of opening direction, and the internal face of the locating slot is engaged with the outside wall surface of supporting leg Vertical Cylinders 20.So, may be used
To improve the positioning action to supporting leg Vertical Cylinders 20.
The present embodiment additionally provides a kind of crane, including leg structure, and leg structure is above-mentioned leg structure.
When crane in the present embodiment is in running order, supporting leg Vertical Cylinders 20 are in open configuration；At crane
When off working state, supporting leg Vertical Cylinders 20 are in folded state, and specific folding process is as follows：
As shown in Fig. 4 to Figure 10, the oil circuit of overturning oil cylinder 30 is turned on, it is arbitrarily floated under external force.
Auxiliary cylinder 40 is shunk, under the pulling force and the Action of Gravity Field of itself of auxiliary cylinder 40, supporting leg Vertical Cylinders 20 are overall to be moved down, directly
To bearing pin 50 and the lower end in contact in key-shaped hole.
Now, as shown in Figure 7 and Figure 8, supporting leg Vertical Cylinders 20 are separated with the carrying contact surface of supporting leg body 10, so,
Interference is produced with supporting leg body 10 when supporting leg Vertical Cylinders 20 can be avoided to rotate, that is, avoids the first supporting plate 61 and the second support
Interfered between plate 62.
Then, locked auxiliary cylinder 40, shrinks overturning oil cylinder 30, and then drives supporting leg Vertical Cylinders 20 around 50 turns of bearing pin
It is dynamic.Fig. 9 is structural representation when supporting leg Vertical Cylinders 5 rotate 45 ° of extreme positions, it is noted that now the first supporting plate 61 and the
Interference should not be produced between two supporting plates 62.
Continue to shrink overturning oil cylinder 30, until the housing of supporting leg Vertical Cylinders 20 connects with the groove of the circular arc of limiting plate 70
Touch, then locked overturning oil cylinder 30, complete the folding process of supporting leg Vertical Cylinders 20.
After completing to fold, as shown in Figure 10, the angle between the first line 91 and horizontal plane is more than the second line 92 and water
Angle between plane, otherwise will be unable to open supporting leg Vertical Cylinders 20.
Supporting leg Vertical Cylinders 20 complete the leg structure after folding as shown in Figure 10, Figure 11 and Figure 13.Supporting leg Vertical Cylinders
20 to open process similar with folding process, therefore no longer narration in detail.
The leg structure height dimension of existing crane is larger, greatly affected space arrangement and the structure optimization of vehicle
Design.
The present embodiment is realized the folding of supporting leg Vertical Cylinders and is opened using double oil cylinders and related supplementary structure, Ke Yiji
The earth simplifies design, while saving design and manufacture cost, the performance of lifting product, the effect in hoister in large tonnage products application
It is more obvious.
The key technology point of the leg structure in the present embodiment is as follows：
(1) moving up and down for supporting leg Vertical Cylinders 20 can be realized using the key-shaped hole on auxiliary cylinder 40 and supporting leg body 10
With it is spacing, while ensureing that supporting leg Vertical Cylinders 20 are not interfered in rotation process with other parts；Then, using overturning oil cylinder
30 rotate supporting leg Vertical Cylinders 20, so as to realizing the folding of supporting leg Vertical Cylinders 20 and open.
(2) during working condition supporting leg Vertical Cylinders 20 and supporting leg body 10 carrying contact surface (the first supporting plate 61 and the
Between two supporting plates 62) bolt connection is provided without, it is fixed by overturning oil cylinder thrust and outrigger reaction, simplify supporting leg and hang down
The installing/dismounting process of straight oil cylinder 20, conveniently carries out maintenance replacing.
It can be seen that, the leg structure in the present embodiment has advantages below：
(1) during off working state, height of landing leg direction size is only the 40%~50% of traditional structure forms, is greatly saved
About limited space, simplifies supporting leg, the design of vehicle frame and space arrangement, reduces chassis design constraint, improves vehicle
Performance.
For example, for radial pattern leg structure, after the structure in the present embodiment, supporting leg is folded against behind vehicle frame both sides not
The arrangement of vehicle bridge can be influenceed；For H type supporting legs, can effectively increase vehicle departure angle.
(2) the carrying contact surface of supporting leg Vertical Cylinders and supporting leg body is provided without bolt connection during working condition, by turning over
Turn cylinder thrust and outrigger reaction is fixed, so as to simplify the installing/dismounting process of supporting leg Vertical Cylinders, conveniently tieed up
Repair replacing.
(3) simple structure, can be formed by the transformation of existing H types supporting leg, save manufacture and improvement cost.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of leg structure of crane, including supporting leg body (10) and the supporting leg on the supporting leg body (10) hang down
Straight oil cylinder (20), it is characterised in that accommodating chamber (11), the supporting leg Vertical Cylinders (20) are provided with the supporting leg body (10)
With for supporting the first position of the supporting leg body (10) and being contained in the second place of the accommodating chamber (11)；The branch
Leg structure also includes auxiliary cylinder (40), and one end of the auxiliary cylinder (40) is connected with the supporting leg body (10), described auxiliary
The other end and supporting leg Vertical Cylinders (20) drive connection of oil cylinder (40) are helped, the supporting leg Vertical Cylinders (20) are by described
Auxiliary cylinder (40) is on the supporting leg body (10).
2. leg structure according to claim 1, it is characterised in that the leg structure also includes：
Drive device, the drive device and supporting leg Vertical Cylinders (20) drive connection, drive the supporting leg Vertical Cylinders
(20) maintain the first position or position conversion is carried out between the first position and the second place.
3. leg structure according to claim 2, it is characterised in that the supporting leg Vertical Cylinders (20) are rotatably mounted
On the supporting leg body (10), the drive device includes overturning oil cylinder (30), one end of the overturning oil cylinder (30) and institute
Supporting leg body (10) connection is stated, the other end of the overturning oil cylinder (30) is connected with the middle part of the supporting leg Vertical Cylinders (20).
4. leg structure according to claim 3, it is characterised in that be provided with and the appearance on the supporting leg body (10)
Receive the opening (12) of chamber (11) connection, the supporting leg Vertical Cylinders (20) are located in the opening (12).
5. leg structure according to claim 1, it is characterised in that the auxiliary cylinder (40) and the supporting leg are vertically oily
Cylinder (20) is connected by bearing pin (50), and the bar hole being extends in the vertical direction is provided with the side wall of the supporting leg body (10)
(13), the bearing pin (50) is in the bar hole (13).
6. leg structure according to claim 1, it is characterised in that the bottom of the supporting leg body (10) is provided with first
Supporting plate (61), the second supporting plate (62) is provided with the cylinder body of the supporting leg Vertical Cylinders (20), when the supporting leg is vertically oily
When cylinder (20) is positioned at the first position, first supporting plate (61) abuts with second supporting plate (62).
7. leg structure according to claim 1, it is characterised in that when the supporting leg Vertical Cylinders (20) are in described
During two positions, the supporting leg Vertical Cylinders (20) are contained in the accommodating chamber (11) along the bearing of trend of the supporting leg body (10)
It is interior.
8. leg structure according to claim 7, it is characterised in that set on the end plate (14) of the supporting leg body (10)
There is the avoidance hole for avoiding the supporting leg Vertical Cylinders (20).
9. leg structure according to claim 7, it is characterised in that be provided with limiting plate on the supporting leg body (10)
(70) downward opening locating slot, is provided with the limiting plate (70), when the supporting leg Vertical Cylinders (20) are in described
During two positions, the supporting leg Vertical Cylinders (20) are fastened in the locating slot.
10. a kind of crane, including leg structure, it is characterised in that the leg structure is any one of claim 1 to 9
Described leg structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885710.1A CN105417413B (en) | 2015-12-04 | 2015-12-04 | Crane and supporting leg structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885710.1A CN105417413B (en) | 2015-12-04 | 2015-12-04 | Crane and supporting leg structure thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105417413A CN105417413A (en) | 2016-03-23 |
| CN105417413B true CN105417413B (en) | 2017-06-30 |
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ID=55496037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510885710.1A Active CN105417413B (en) | 2015-12-04 | 2015-12-04 | Crane and supporting leg structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105417413B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477468B (en) * | 2016-11-13 | 2018-06-26 | 无锡晟欧船舶设备有限公司 | A kind of rubbish hangs base support means |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201580922U (en) * | 2009-11-22 | 2010-09-15 | 江苏力福特随车起重机股份有限公司 | Inward-rolling type landing leg of lorry-mounted crane |
| CN101850936A (en) * | 2010-05-26 | 2010-10-06 | 长治清华机械厂 | Push rod type automatic turning device for legs |
| CN201713239U (en) * | 2010-05-24 | 2011-01-19 | 韶关市起重机厂有限责任公司 | Hydraulic turnover support leg of lorry-mounted crane |
| CN202643180U (en) * | 2012-06-29 | 2013-01-02 | 湖南大汉起重科技有限公司 | Oil cylinder-driving turnover mechanism for support oil cylinder |
-
2015
- 2015-12-04 CN CN201510885710.1A patent/CN105417413B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201580922U (en) * | 2009-11-22 | 2010-09-15 | 江苏力福特随车起重机股份有限公司 | Inward-rolling type landing leg of lorry-mounted crane |
| CN201713239U (en) * | 2010-05-24 | 2011-01-19 | 韶关市起重机厂有限责任公司 | Hydraulic turnover support leg of lorry-mounted crane |
| CN101850936A (en) * | 2010-05-26 | 2010-10-06 | 长治清华机械厂 | Push rod type automatic turning device for legs |
| CN202643180U (en) * | 2012-06-29 | 2013-01-02 | 湖南大汉起重科技有限公司 | Oil cylinder-driving turnover mechanism for support oil cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105417413A (en) | 2016-03-23 |
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