CN202219774U - Engineering machine and supporting leg device thereof - Google Patents
Engineering machine and supporting leg device thereof Download PDFInfo
- Publication number
- CN202219774U CN202219774U CN2011203551188U CN201120355118U CN202219774U CN 202219774 U CN202219774 U CN 202219774U CN 2011203551188 U CN2011203551188 U CN 2011203551188U CN 201120355118 U CN201120355118 U CN 201120355118U CN 202219774 U CN202219774 U CN 202219774U
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- roller
- supporting leg
- support leg
- leg device
- slideway
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Abstract
The utility model discloses a supporting leg device used for engineering machines, which comprises a slide rail (1), a supporting leg (2) telescopically sleeved in the slide rail (1) and rollers (3) used for supporting the supporting leg (2), wherein the rollers (3) are rotatably connected on two inner sides of the slide rail (1) in a vertical plane. The supporting leg device further comprises an adjusting device (4) for adjusting the rollers (3) to lead top faces of the rollers (3) to be contacted with the bottom face of the supporting leg (2), and the adjusting device (4) is installed on the outer side of the slide rail (1). During work of the supporting leg device, the adjusting device has a real-time automatic adjusting effect when the bottom face of the supporting leg is not contacted with the top faces of the rollers, so that the supporting leg is ensured to be constantly supported on the rollers during reciprocating motion of the supporting leg, and work stability of the supporting leg device is enhanced. An engineering machine which comprises a machine body, a base plate and the supporting leg device is further disclosed. The supporting leg device is connected with the base plate and has same effect.
Description
Technical field
The utility model relates to technical field of engineering machinery, relates in particular to a kind of support leg device that is used for construction machinery and equipment.The utility model also relates to a kind of construction machinery and equipment that comprises above-mentioned support leg device.
Background technology
Concrete pump truck is the construction machinery and equipment that utilizes pressure that cement concrete is carried along pipeline continuously, is made up of the pump housing and delivery pipe.Pump truck mainly comprises car chassis, is installed on the pump housing, support leg device and scalable, tortuous boom on the chassis.Support leg device is the support component of pump truck, and when going to control position, the outside level of supporting leg is stretched out, and is connected in the terminal ground oil cylinder of supporting leg and stretches out downwards and be supported in ground, plays the effect of supporting whole locomotive body.Support leg device generally includes slideway, roller and is set in slideway in-to-in supporting leg, and supporting leg is supported on the roller, and in slideway inside along its length direction crank motion, thereby realize stretching out and regaining of support leg device.
Please refer to Fig. 1 to Fig. 4, Fig. 1 is the structural representation of first kind of support leg device in the prior art; Fig. 2 is the left view of Fig. 1; Fig. 3 is the structural representation of second support leg device in the prior art; Fig. 4 is the left view of Fig. 3.The above two kinds of defectives that support leg device exists at work of following brief description.
In first kind of support leg device; As depicted in figs. 1 and 2; But comprise laterally run through slideway 12 ' main shaft 14 ' be set in main shaft 14 ' a plurality of free rolling rollers 13 '; The a plurality of rollers 13 of supporting leg 11 during work ' be supported in ' on, and stretching out and regain with the scrolling realization supporting leg of the axle sleeve (not shown) that is set in roller 13 ' outer.Yet; Support leg device is after repeatedly working; Slideway 12 ' or supporting leg 11 ' inevitably produce distortion, because main shaft 14 ' being installed in the fixed via of slideway 11 ' both sides, its upper-lower position can't be regulated; Cause supporting leg 11 ' bottom surface and roller 13 ' can not contact constantly, support effect is undesirable.
In second kind of support leg device; Like Fig. 3 and shown in Figure 4; But its roller 23 ' comprise back-up block 24 ' with free rolling roller 23 ', back-up block 24 ' through bolted connection is in slideway 22 ' both sides, roller 23 ' be installed on back-up block 24 ' inboard; Two rollers 23 of supporting leg 21 during work ' be supported in ' on, and with the scrolling realization supporting leg 21 of the axle sleeve (not shown) that is set in roller 23 ' outer ' stretch out and regain.Because slideway 22 ' both sides vertically are provided with a plurality of mounting hole (not shown)s; When supporting leg 21 ' because distortion and roller 23 ' when not contacting; With back-up block 24 ' be fixed in the mounting hole of differing heights, thus guarantee supporting leg 21 ' bottom surface and roller 23 ' contact.Yet; This manual regulation mode efficient is very low, when supporting leg 21 ' or slideway 22 ' new distortion of generation, then need carry out again roller 23 ' position adjustments; Therefore often exist two rollers 23 ' can't support simultaneously stressed, it is stressed excessive and damage to cause a side to support.
In view of this; Demand urgently to above-mentioned technical matters, the structure of support leg device in the prior art is optimized design, make support leg device when slideway or supporting leg distortion, can guarantee that still the supporting leg bottom surface contacts with the roller end face constantly; To realize support effect preferably, improve the work efficiency of support leg device.
The utility model content
The technical matters that the utility model will solve is that a kind of support leg device that is used for construction machinery and equipment is provided; Make it when slideway or supporting leg distortion; Can guarantee that still the supporting leg bottom surface contacts with the roller end face, play supporting role preferably, improve the working stability of support leg device.Another technical matters that the utility model will solve is that a kind of construction machinery and equipment that comprises above-mentioned support leg device is provided.
For solving the problems of the technologies described above; The utility model provides a kind of support leg device that is used for construction machinery and equipment; Comprise that slideway, telescopically are set in the supporting leg in the said slideway and are used to support the roller of said supporting leg, said roller is rotationally connected with two inboards of said slideway in vertical plane; Said support leg device also comprises regulates the control apparatus that said roller makes its end face contact with said supporting leg bottom surface, and said control apparatus is installed on the said slideway outside.
Preferably, said control apparatus comprises and said slideway bonded assembly pull bar that said rod outer sleeve is equipped with precompressed elastomeric element, and said pull bar end is provided with the limiting component of the said elastomeric element terminal position of restriction; Said elastomeric element butt has adjust bar mutually, and said adjust bar bottom is connected in the eccentric part of said roller.
Preferably, said pull bar and said slideway are rotationally connected in vertical plane, and said adjust bar upper end offers the through hole along its horizontal expansion, and said adjust bar is set in said pull bar outside through said through hole.
Preferably, the said roller outside is provided with and said roller accentric roller shaft, and said roller shaft is provided with the through hole that radially extends along it, and said adjust bar is plugged in the said through hole.
Preferably, said pull bar terminal part is provided with outside thread, and said limiting component is for passing through said outside thread bonded assembly stop nut.
Preferably, said adjust bar bottom is welded in the eccentric part of said roller.
Preferably; Said pull bar is captiveed joint with said slideway sidewall; Offer the slotted hole along its horizontal expansion on the said adjust bar, the length direction of said slotted hole is along said adjust bar length direction, and said adjust bar is set on the said pull bar through said slotted hole.
Preferably, comprise two said control apparatuss, two said control apparatuss are symmetricly set in two outsides of said slideway.
The utility model provides a kind of support leg device that is used for construction machinery and equipment, and it comprises regulates the control apparatus that roller makes its end face contact with the supporting leg bottom surface, and control apparatus is installed on the slideway outside.Particularly, this control apparatus comprises and slideway bonded assembly pull bar that rod outer sleeve is equipped with precompressed elastomeric element, and the pull bar end is provided with the limiting component of restriction elastomeric element terminal position; The elastomeric element butt has adjust bar mutually, and the adjust bar bottom is connected in the eccentric part of roller.
Adopt this version, in the supporting leg crank motion of support leg device, the bottom surface of supporting leg contacts with the end face of roller during normal operation, and support effect is better, and control apparatus is inoperative; When because slideway or supporting leg distortion when causing the supporting leg bottom surface can not contact simultaneously with the end face of roller; Make it to the motion of pull bar butt because the predetermincd tension of elastomeric element, the butt of elastomeric element can promote the adjust bar top, the bottom of adjust bar drives the roller rotation simultaneously; Because the adjust bar bottom is connected in the eccentric part of roller; The radius of turn that to be roller rotate with adjust bar is different, when the vertical radius of turn of roller less than center of gyration to the supporting leg bottom surface apart from the time, roller continues rotation; Up to the vertical radius of turn of roller equal center of gyration to the supporting leg bottom surface apart from the time; Be that the supporting leg bottom surface contacts with the roller end face, roller stops operating, and supporting leg is supported in crank motion on the roller.
Can know by above-mentioned working process; This support leg device at work, in case when the discontiguous situation of supporting leg bottom surface and roller end face occurring, the predetermincd tension of elastomeric element driving rolls is immediately rotated until the two contact; Play real-time autoregulation; Guaranteed to be supported in all the time on the roller in the supporting leg crank motion, avoided having strengthened the working stability of support leg device greatly owing to the phenomenon that distortion is not supported or one-sided support causes roller very easily to damage.
The utility model also provides a kind of construction machinery and equipment, comprises body and chassis; Also comprise aforesaid support leg device, said support leg device is connected with said chassis.
Preferably, be specially concrete pump truck.
Because above-mentioned support leg device has above-mentioned technique effect, therefore, comprises that the construction machinery and equipment of this support leg device also should have identical technique effect, repeats no more at this.
Description of drawings
Fig. 1 is the structural representation of first kind of support leg device in the prior art;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of second support leg device in the prior art;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the structural representation of a kind of specific embodiment of support leg device that the utility model provides;
Fig. 6 is the lateral plan of Fig. 5;
Fig. 7 is the structural representation of the another kind of specific embodiment of support leg device that the utility model provides;
Fig. 8 is the structural representation of a kind of specific embodiment of construction machinery and equipment that the utility model provides.
Wherein, Reference numeral among Fig. 1 to Fig. 2 and the corresponding relation between the component names are: 11 ' supporting leg; 12 ' slideway; 13 ' roller; 14 ' main shaft;
Reference numeral and the corresponding relation between the component names among Fig. 3 to Fig. 4 are: 21 ' supporting leg; 22 ' slideway; 23 ' roller; 24 ' back-up block;
Reference numeral and the corresponding relation between the component names among Fig. 5 to Fig. 7 are: 1 slideway; 2 supporting legs; 3 rollers; 31 roller shafts; 4 control apparatuss; 41 pull bars; 42 elastomeric elements; 43 adjusts bar; 44 limiting components.
The specific embodiment
The core of the utility model is that a kind of support leg device that is used for construction machinery and equipment is provided, and this support leg device can guarantee that still the supporting leg bottom surface contacts with the roller end face when slideway or supporting leg distortion, play supporting role preferably, improves the working stability of support leg device.Another core of the utility model is that a kind of construction machinery and equipment that comprises above-mentioned support leg device is provided.
In order to make those skilled in the art understand the technical scheme of the utility model better, the utility model is done further to specify below in conjunction with accompanying drawing and specific embodiment.
Fig. 5 is the structural representation of a kind of specific embodiment of support leg device that the utility model provides; Fig. 6 is the lateral plan of Fig. 5.
In a kind of specific embodiment, like Fig. 5 and shown in Figure 6, the support leg device that is used for construction machinery and equipment that the utility model provided comprises slideway 1, supporting leg 2, roller 3 and control apparatus 4; Slideway 1 is to be used to lead supporting leg 2 reciprocating frameworks; Supporting leg 2 telescopicallies are set in the slideway 1; Roller 3 is the parts that are used for support leg 2; It is rotationally connected with the inboard of slideway 1 in vertical plane, control apparatus 4 is to be used to regulate the device that roller 3 makes its end face contact with supporting leg 2 bottom surfaces, and this control apparatus 4 is installed on the outside of slideway 1.
In the concrete scheme, control apparatus 4 comprises and slideway 1 bonded assembly pull bar 41, is set with precompressed elastomeric element 42 outside the pull bar 41, and pull bar 41 ends are provided with the limiting component 44 of restriction elastomeric element 42 terminal positions; Elastomeric element 42 butts have adjust bar 43 mutually, and adjust bar 43 bottoms are connected in the eccentric part of roller 3.
Adopt this version, in supporting leg 2 crank motions of support leg device, the bottom surface of supporting leg 2 contacts with the end face of roller 3 during normal operation, and support effect is better, and control apparatus 4 is inoperative; When because slideway 1 or supporting leg 2 distortion when causing supporting leg 2 bottom surfaces can not contact simultaneously with the end face of roller 3; Make it to the motion of pull bar 41 butts because the predetermincd tension of elastomeric element 42, the butt of elastomeric element 42 can promote adjust bar 43 tops, the bottom of adjust bar 43 drives roller 3 rotations simultaneously; Because adjust bar 43 bottoms are connected in the eccentric part of roller 3; The radius of turn that to be roller 3 rotate with adjust bar 43 is different, when the vertical radius of turn of roller 3 less than center of gyration to supporting leg 2 bottom surfaces apart from the time, roller 3 continues rotation; Up to the vertical radius of turn of roller 3 equal center of gyration to supporting leg 2 bottom surfaces apart from the time; Be that supporting leg 2 bottom surfaces contact with roller 3 end faces, roller 3 stops operating, and supporting leg 2 is supported in crank motion on the roller 3.
Can know by above-mentioned working process; This support leg device at work, in case when the discontiguous situation of supporting leg 2 bottom surfaces and roller 3 end faces occurring, the predetermincd tension of elastomeric element 42 driving rolls 3 is immediately rotated until the two contact; Play real-time autoregulation; Guaranteed to be supported in all the time on the roller 3 in supporting leg 2 crank motions, avoided having strengthened the working stability of support leg device greatly owing to the phenomenon that distortion is not supported or one-sided support causes roller 3 very easily to damage.
Need to prove; The above-mentioned specific embodiment does not limit adjust bar 43 bottoms and roller 3 bonded assembly specific constructive form; Do not limit the specific constructive form of pull bar 41 upper limit parts 44 yet; Above-mentioned control apparatus 4 also is not limited in and adopts elastomeric element 42 to promote adjust bar 43, thereby drives the version of roller 3 eccentric rotary; In fact, everyly comprise that regulating roller 3 all should work as in the protection domain that belongs to the utility model the support leg device of the control apparatus 4 that its end face contacts with supporting leg 2 bottom surfaces.
In addition; The said noun of locality " outward " refers among Fig. 5 perpendicular to paper and the outside direction that penetrates among this paper; " root " refers among Fig. 5 direction from left to right; " end " refers among Fig. 5 direction from right to left, and " butt " refers to the right-hand member of each parts, and " end " refers to the left end of each parts; The appearance that should be appreciated that these nouns of locality is that benchmark is set up with the accompanying drawing, and their appearance should not influence the protection domain of the utility model.
The specific constructive form of above-mentioned control apparatus 4 can also further be set.
In concrete scheme, above-mentioned pull bar 41 can be rotationally connected in vertical plane with slideway 1, and adjust bar 43 upper ends offer the through hole along its horizontal expansion, and adjust bar 43 is set in pull bar 41 outsides through this through hole.
Adopt this structure; As shown in Figure 5; Because adjust bar 43 upper ends are set on the pull bar 41; When elastomeric element 42 cws promote adjust bar 43 rotations, can drive pull bar 41 and in perpendicular, rotate rotation with fit adjustment bar 43 with respect to chute wall, and then the support of realization and 3 pairs of supporting legs 2 of adjust bar 43 eccentric bonded assembly rollers.Easy for installation, motion flexible characteristic that the control apparatus of this structure has.
Certainly, except adopting said structure, pull bar 41 can also adopt other connection modes with adjust bar 43.For example, pull bar 41 can be captiveed joint with slideway 1 sidewall, and adjust bar 43 upper ends offer the slotted hole along its horizontal expansion, and the length direction of slotted hole is along adjust bar 43 length directions, and adjust bar 43 is set on the pull bar 42 through slotted hole.Adopt this structure, because adjust bar 43 is connected with 41 through slotted hole, promote in adjust bar 43 rotation processes at elastomeric element 42, pull bar 41 need not to rotate, and adjust bar 43 still can drive roller 3 support leg 2 of its lower end.The control apparatus of this structure has and installs and fixes, and avoids the advantage of pull bar 41 and the friction of chute wall.
In addition, above-mentioned adjust bar 43 also can not be set on the pull bar 41, only is butted on the outside of pull bar 41 mutually with elastomeric element 42, and this moment, pull bar 41 can be set to captive joint with slideway 1 wall.Adopt this version, above-mentioned adjust bar 43 still can drive eccentric roller 3 and rotate under the promotion of elastomeric element 42, thereby guarantees that supporting leg 2 is supported on the roller 3.
In scheme more specifically, as shown in Figure 5, above-mentioned rollers 3 outsides are provided with and roller 3 accentric roller shafts 31, and roller shaft 31 is provided with the through hole that radially extends along it, and adjust bar 43 is plugged in the through hole.
Adopt this version; The rotation of adjust bar 43 can drive roller 3 easily and rotate, because adjust bar 43 bottoms are plugged in the through hole of roller shaft 31, makes stress equalization in roller 3 rotation processes; Stability of rotation, and have characteristics simple in structure, that manufacturing is easy to process.Certainly, above-mentioned adjust bar 43 also is not limited in this way and is connected with roller 3, and is as shown in Figure 7, can also adopt the eccentric part that adjust bar 43 bottoms is directly welded in roller 3, can realize that equally adjust bar 43 drives roller 3 and rotates.
In the scheme further, the junction of above-mentioned rollers axle 31 and roller 3 also is provided with spacer.The regulating action of spacer adopts this structure, owing to can prevent that roller 3 and roller shaft 31 from its end float misalignment, further having guaranteed the stability of roller 3 support leg 2.
Can also further be arranged at the version of the limiting component 44 of above-mentioned pull bar 41.
In the another kind of specific embodiment, above-mentioned pull bar 41 terminal parts can be provided with outside thread, and limiting component 44 is for passing through outside thread bonded assembly stop nut.Adopt this structure; Above-mentioned nut can play the effect of restriction elastomeric element 42 terminal positions; In addition, along with the deformation extent of slideway 1 or supporting leg 2 is different, can also regulate the predetermincd tension size of elastomeric element 42 in pull bar 41 externally threaded positions through adjustment nut; Make that the position adjustments of control apparatus 4 pair rollers 3 is more flexible, further strengthen the stability and the reliability of roller 3 support leg 2.In addition, adopt nut can also make things convenient for dismounting, installation and the replacing of elastomeric element 42, adjust bar 43, and make that the processing and manufacturing process of control apparatus 4 is simple, have the lower characteristics of productive costs as limiting component 44.
Certainly, above-mentioned limiting component 44 only for the version that adopts above-mentioned stop nut, can also not be other version.
In the scheme, above-mentioned elastomeric element 42 can be specially spring more specifically, and this makes control apparatus 4 have characteristics simple in structure, that cost is lower.Certainly, above-mentioned elastomeric element 42 can also adopt other versions.
In the another kind of specific embodiment, above-mentioned support leg device can comprise that 4, two control apparatuss 4 of two above-mentioned control apparatuss are symmetricly set in two outsides of slideway 1.Adopt this version, the roller 3 of slideway 1 both sides all can be adjusted in real time, guarantees that the bottom surface of supporting leg 2 both sides all contacts with roller 3 end faces, further guaranteed the working stability of support leg device.Certainly, above-mentioned support leg device can also adopt the control apparatus 4 of other quantity.
Please refer to Fig. 8, Fig. 8 is the structural representation of a kind of specific embodiment of construction machinery and equipment that the utility model provides.As shown in Figure 8, the utility model also provides a kind of construction machinery and equipment, and this project machinery comprises body and chassis, also comprises aforesaid support leg device, and support leg device is connected with the chassis.
Because above-mentioned support leg device has above-mentioned technique effect, therefore, comprises that the construction machinery and equipment of this support leg device also should have identical technique effect, repeats no more at this.
In the concrete scheme, above-mentioned construction machinery and equipment can be specially concrete pump truck.Need to prove; This paper only is the technique effect that example has been introduced above-mentioned support leg device with the concrete pump truck, and in fact, above-mentioned support leg device can also be used for the construction machinery and equipment of other type; Hoisting crane etc. for example, every construction machinery and equipment of support leg device that comprises all can adopt above-mentioned support leg device.
More than a kind of construction machinery and equipment and support leg device thereof that the utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. support leg device that is used for construction machinery and equipment; Comprise that slideway (1), telescopically are set in the supporting leg (2) in the said slideway (1) and are used to support the roller (3) of said supporting leg (2), said roller (3) is rotationally connected with two inboards of said slideway (1) in vertical plane; It is characterized in that said support leg device also comprises regulates the control apparatus (4) that said roller (3) makes its end face contact with said supporting leg (2) bottom surface, said control apparatus (4) is installed on said slideway (1) outside.
2. the support leg device that is used for construction machinery and equipment according to claim 1; It is characterized in that; Said control apparatus (4) comprises and said slideway (1) bonded assembly pull bar (41); The outer precompressed elastomeric element (42) that is set with of said pull bar (41), said pull bar (41) end is provided with the limiting component (44) of restriction said elastomeric element (42) terminal position; Said elastomeric element (42) butt has adjust bar (43) mutually, and said adjust bar (43) bottom is connected in the eccentric part of said roller (3).
3. the support leg device that is used for construction machinery and equipment according to claim 2; It is characterized in that; Said pull bar (41) is rotationally connected in vertical plane with said slideway (1); Said adjust bar (43) upper end offers the through hole along its horizontal expansion, and said adjust bar (43) is set in said pull bar (41) outside through said through hole.
4. the support leg device that is used for construction machinery and equipment according to claim 2; It is characterized in that; Said roller (3) outside is provided with and said roller (3) accentric roller shaft (31), and said roller shaft (31) is provided with the through hole that radially extends along it, and said adjust bar (43) is plugged in the said through hole.
5. the support leg device that is used for construction machinery and equipment according to claim 2 is characterized in that, said pull bar (41) terminal part is provided with outside thread, and said limiting component (44) is for passing through said outside thread bonded assembly stop nut.
6. the support leg device that is used for construction machinery and equipment according to claim 2 is characterized in that, said adjust bar (43) bottom is welded in the eccentric part of said roller (3).
7. the support leg device that is used for construction machinery and equipment according to claim 2; It is characterized in that; Said pull bar (41) is captiveed joint with said slideway (1) sidewall; Said adjust bar offers the slotted hole along its horizontal expansion on (43), and the length direction of said slotted hole is along said adjust bar (43) length direction, and said adjust bar (43) is set on the said pull bar (42) through said slotted hole.
8. according to each described support leg device that is used for construction machinery and equipment of claim 1-7, it is characterized in that comprise two said control apparatuss (4), two said control apparatuss (4) are symmetricly set in two outsides of said slideway (1).
9. a construction machinery and equipment comprises body and chassis; It is characterized in that also comprise each described support leg device like claim 1-8, said support leg device is connected with said chassis.
10. construction machinery and equipment according to claim 9 is characterized in that, is specially concrete pump truck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203551188U CN202219774U (en) | 2011-09-21 | 2011-09-21 | Engineering machine and supporting leg device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203551188U CN202219774U (en) | 2011-09-21 | 2011-09-21 | Engineering machine and supporting leg device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202219774U true CN202219774U (en) | 2012-05-16 |
Family
ID=46041807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203551188U Expired - Lifetime CN202219774U (en) | 2011-09-21 | 2011-09-21 | Engineering machine and supporting leg device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202219774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014079248A1 (en) * | 2012-11-26 | 2014-05-30 | 徐州徐工随车起重机有限公司 | Skid-proof support leg apparatus and mobile machinery |
-
2011
- 2011-09-21 CN CN2011203551188U patent/CN202219774U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014079248A1 (en) * | 2012-11-26 | 2014-05-30 | 徐州徐工随车起重机有限公司 | Skid-proof support leg apparatus and mobile machinery |
| CN103832410A (en) * | 2012-11-26 | 2014-06-04 | 徐州徐工随车起重机有限公司 | Anti-skidding supporting foot device and walking machine |
| CN103832410B (en) * | 2012-11-26 | 2016-06-29 | 徐州徐工随车起重机有限公司 | Support foot device and walking machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130502 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130502 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: Sanyi Heavy Industry Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120516 |