CN202029826U - Support leg device and engineering machinery - Google Patents
Support leg device and engineering machinery Download PDFInfo
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- CN202029826U CN202029826U CN2011201470059U CN201120147005U CN202029826U CN 202029826 U CN202029826 U CN 202029826U CN 2011201470059 U CN2011201470059 U CN 2011201470059U CN 201120147005 U CN201120147005 U CN 201120147005U CN 202029826 U CN202029826 U CN 202029826U
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- backing plate
- sliding pin
- support leg
- oil cylinder
- leg device
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Abstract
The utility model relates to engineering machinery, in particular to a support leg device. The support leg device comprises a support leg oil cylinder and a support leg seat, wherein the support leg seat is fixed at the bottom end of a piston rod of the support leg oil cylinder; a first backing plate and a second backing plate are respectively articulated at least at the two sides of the bottom surface of the support leg seat; no less than one first sliding pin is arranged at the inner side of the upper surface of the first backing plate; no less than one second sliding pin is arranged at the inner side of the upper surface of the second backing plate; and a cylinder body of the support leg cylinder is provided with a first sliding plate and a second sliding plate which correspond to the first sliding pin and the second sliding pin. In the support leg device with the structure, the backing plates are integrated on the support leg seat, and the backing seat can realize automatic folding and unfolding along with the lifting of the piston rod of the support leg cylinder without artificial participation, so that the automatic degree of operation is greatly improved. The utility model also discloses the engineering machinery with the support leg device.
Description
Technical field
The utility model relates to technical field of engineering machinery, relates in particular to a kind of support leg device that can launch automatically, draw backing plate in.The utility model also relates to a kind of construction machinery and equipment with above-mentioned support leg device.
Background technology
Along with the fast development of China's economic construction, construction project is on the increase, walking type construction machinery particularly concrete pump truck use more and more widely.
When the pumping operating mode, in order to guarantee the stationarity of concrete pump truck, prevent that concrete pump truck from shaking or overthrow accident, on the chassis of concrete pump truck, be symmetrically arranged with a plurality of support leg devices usually, support leg device is used to support concrete pump truck.
Support leg device generally includes support oil cylinder and supporting leg seat, and the bottom of the piston rod of supporting leg seat and support oil cylinder is fixed.In order to increase support leg device and ground-surface area of contact, between supporting leg seat and ground, be provided with backing plate usually, the upper surface of backing plate, lower surface contact with ground with the supporting leg seat respectively.
Please referring to Fig. 1, Fig. 1 is the structural representation of a kind of representative type support leg device in the prior art.
As shown in Figure 1, the support oil cylinder 1 ' of support leg device, supporting leg seat 2 ' generally separate with backing plate 3 ', under the off working state, backing plate 3 ' general independent being placed in the backing plate box, when the concrete pump truck need of work launches support leg device, backing plate 3 ' taken out in the backing plate box be placed on supporting leg seat 2 ' below, the upper surface of backing plate 3 ', lower surface contact with ground 4 ' with supporting leg seat 2 ' respectively, with the area of contact on increase support leg device and ground 4 ', thereby improve stability and the safety that concrete pump truck is constructed.After the concrete pump truck end-of-job was regained support leg device, operating personal needed backing plate 3 ' is regained, and is positioned in the backing plate box.
The support leg device of this structure, when each concrete pump truck work launches support leg device, need backing plate 3 ' is taken out and be placed on supporting leg seat 2 ' below from the backing plate box, construction finishes again backing plate 3 ' to be put back to the backing plate box when support leg device is regained, operate more loaded down with trivial details, backing plate 3 ' is heavier, also is not easy to pick and place.
In addition, the support leg device of this structure, during misoperation, slide relative may take place with backing plate 3 ' in supporting leg seat 2 ', has potential safety hazard.
Therefore, how to develop the support leg device that need not to pick and place backing plate when a kind of support oil cylinder launches with gathering, become the technical barrier that those skilled in the art need to be resolved hurrily.
The utility model content
A purpose of the present utility model provides a kind of support leg device, and this support leg device need not to pick and place backing plate when support oil cylinder launches with gathering.Another purpose of the present utility model provides a kind of construction machinery and equipment with above-mentioned support leg device.
In order to realize above-mentioned first purpose, the utility model provides a kind of support leg device, comprise support oil cylinder, the supporting leg seat, described supporting leg seat is fixed on the bottom of the piston rod of described support oil cylinder, the both sides, bottom surface of described supporting leg seat are hinged with first backing plate at least respectively, second backing plate, the upper surface inboard of described first backing plate is provided with and is no less than one first sliding pin, the upper surface inboard of described second backing plate is provided with and is no less than one second sliding pin, and the cylinder body of described support oil cylinder is provided with and described first sliding pin, corresponding first sliding panel of second sliding pin, second sliding panel.
Preferably, the left and right sides of described first backing plate is respectively equipped with the first left sliding pin, the first right sliding pin, and the left and right sides of described second backing plate is respectively equipped with the second left sliding pin, the second right sliding pin.
Preferably, the described first left sliding pin, the second left sliding pin shift to install, and the left side of the cylinder body of described support oil cylinder is provided with and is used for the left sliding panel of while against the described first left sliding pin, the described second left sliding pin.
Preferably, the described first right sliding pin, the second right sliding pin shift to install, and the right side of the cylinder body of described support oil cylinder is provided with and is used for the right sliding panel of while against the described first right sliding pin, the described second right sliding pin.
Preferably, also comprise bearing pin, described bearing pin can run through described first backing plate, described second backing plate simultaneously.
Preferably, also be provided with first spring between described first backing plate and the supporting leg seat.
Preferably, also be provided with second spring between described second backing plate and the supporting leg.
Preferably, described first backing plate, described second backing plate are semicircle backing plate, rectangle backing plate or triangle backing plate.
The support leg device that the utility model provides is hinged with first backing plate, second backing plate respectively in the both sides, bottom surface of supporting leg seat, the upper surface inboard of first backing plate is provided with and is no less than one first sliding pin, the upper surface inboard of second backing plate is provided with and is no less than one second sliding pin, the cylinder body of support oil cylinder is provided with and described first sliding pin, corresponding first sliding panel of second sliding pin, second sliding panel, and first sliding pin, second sliding pin can be resisted against the bottom surface of first sliding panel, second sliding panel respectively and slide.
The support leg device of this structure, when the piston rod of support oil cylinder is withdrawn, supporting leg seat, first backing plate, second backing plate, first sliding pin, second sliding pin be upward movement together, when first sliding pin, second sliding pin rise to respectively with first sliding panel, when second sliding panel contacts, first backing plate, second backing plate stop upwards straight-line motion; At this moment, under the effect of support oil cylinder, first backing plate is a fulcrum with the contact point of first sliding pin and first sliding panel, and is that turning cylinder upwards rotates with the jointed shaft of first backing plate and supporting leg seat, and simultaneously, first sliding pin slides at the first sliding panel medial surface; Equally, second backing plate is a fulcrum with the contact point of second sliding pin and second sliding panel, and is that turning cylinder upwards rotates with the jointed shaft of second backing plate and supporting leg seat, and second sliding pin slides at the first sliding panel medial surface; When the piston rod contraction put in place, first backing plate, second backing plate were complete rounding state.
When the piston rod of support oil cylinder stretches out, by gravity, first backing plate, second backing plate rotate around corresponding rotating shaft respectively, equally, first sliding pin, second sliding pin slide at the medial surface of first sliding panel, second sliding panel respectively, launch fully until first backing plate, second backing plate, piston rod continues to stretch out, and first backing plate, the second backing plate straight line move downward until contacting with ground.
The support leg device of this structure is integrated in backing plate on the supporting leg seat, and backing plate can be realized respectively with the lifting of support oil cylinder piston rod drawing in automatically and launching, and need not artificial participation, has improved the automation of operation degree greatly; Compared with prior art, all need not to pick and place backing plate when support oil cylinder expansion and gathering, do not need to be provided for specially placing the backing plate box of backing plate, reduced cost, saved the space on the walking engineering truck; Slide relative can not take place between supporting leg seat and the backing plate, improved safety.
In order to realize above-mentioned second purpose, the utility model also provides a kind of construction machinery and equipment with above-mentioned support leg device, because above-mentioned support leg device has above-mentioned technique effect, the construction machinery and equipment with this support leg device also should possess the corresponding techniques effect.
Description of drawings
Fig. 1 is the structural representation of a kind of representative type support leg device in the prior art;
Structural representation when the support leg device that Fig. 2 a is provided for a kind of specific embodiment of the utility model is in deployed condition;
Structural representation when Fig. 2 b is in the state of stretching for the support oil cylinder among Fig. 2 a;
Structural representation when Fig. 2 c makes progress rotary state for first backing plate, second backing plate among Fig. 2 a are in;
Fig. 2 d is the Facad structure scheme drawing of the support leg device among Fig. 2 c;
Structural representation when Fig. 2 e is in rounding state for the support leg device among Fig. 2 a;
Fig. 3 is the structural representation of supporting leg seat among Fig. 2 a;
Fig. 4 is the structural representation of first backing plate among the 2a;
The structural representation of the support leg device that Fig. 5 is provided for the another kind of specific embodiment of the utility model;
Wherein, among Fig. 1-Fig. 5:
Support oil cylinder 1 ', supporting leg seat 2 ', backing plate 3 ', ground 4 ';
The specific embodiment
In order to make those skilled in the art better understand the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2 a-Fig. 2 e, the structural representation the when support leg device that Fig. 2 a is provided for a kind of specific embodiment of the utility model is in deployed condition; Structural representation when Fig. 2 b is in the state of stretching for the support oil cylinder among Fig. 2 a; Structural representation when Fig. 2 c makes progress rotary state for first backing plate, second backing plate among Fig. 2 a are in; Fig. 2 d is the Facad structure scheme drawing of the support leg device among Fig. 2 c; Structural representation when Fig. 2 e is in rounding state for the support leg device among Fig. 2 a.
Shown in Fig. 2 a, the support leg device that the utility model provides comprises support oil cylinder 1, supporting leg seat 2, support oil cylinder 1 is made up of piston rod 11 and cylinder body 12, supporting leg seat 2 is fixed on the bottom of the piston rod 11 of support oil cylinder 1, the both sides, bottom surface of supporting leg seat 2 are hinged with first backing plate 31 respectively, second backing plate 32, first backing plate 31, second backing plate 32 all can be semicircle backing plate, first backing plate 31, the setting of can aliging of the inboard of second backing plate 32, the upper surface inboard of first backing plate 31 is provided with and is no less than one first sliding pin, the upper surface inboard of second backing plate 32 is provided with and is no less than one second sliding pin, and the cylinder body 12 of support oil cylinder 1 is provided with and first sliding pin, corresponding first sliding panel of second sliding pin, second sliding panel.
In the concrete scheme, first backing plate 31 can adopt hinge axis 5 hinged with supporting leg seat 2, as shown in Figure 3, the both sides of supporting leg seat 2 are provided with hinge shaft hole 21, as shown in Figure 4, the medial extremity of first backing plate 31 is provided with rocker bar bearing 311, the first backing plates 31, supporting leg seat 2 by passing hinge axis 5 hinges of hinge shaft hole 21, rocker bar bearing 311 successively.Equally, second backing plate 32 also can adopt hinge axis 5 hinged with supporting leg seat 2.
In the concrete scheme, first sliding panel, second sliding panel all can be connected with cylinder body 12 by bearing, and first sliding panel can be against first sliding pin, and first sliding pin can slide along the medial surface of first sliding panel; Second sliding panel can be against second sliding pin, and second sliding pin can slide along the medial surface of second sliding panel.
Further in the scheme, first sliding panel, second sliding panel can be the arc sliding panel, also can planar structure or the sliding panel of other shapes, all can be against first sliding pin, second sliding pin and can guarantee that sliding panel that first sliding pin, second sliding pin slide along its medial surface all can be used as first sliding panel, second sliding panel among the present invention.
In the preferred version, in order to make backing plate 31 stress equalizations of winning, as shown in Figure 2, the left and right sides of first backing plate 31 can be respectively equipped with the first left sliding pin 71, the first right sliding pin 72, the first left sliding pin 71, the first right sliding pin 72 is the first above-mentioned sliding pin, be located at the left sliding panel 61 of cylinder body 12 both sides of support oil cylinder 1, right sliding panel 62 can be respectively applied for against the first left sliding pin 71, the first right sliding pin 72, left side sliding panel 61, right sliding panel 62 is the first above-mentioned sliding panel, the left and right sides of first backing plate 31 all be subjected to from support oil cylinder 1 against power, can make the backing plate 31 of winning stressed balanced more, can more easily rotate around it axle and rotate.
In the preferred version, in order to make second backing plate, 32 stress equalizations, as shown in Figure 2, the left and right sides of second backing plate 32 can be respectively equipped with the second left sliding pin 73, the second right sliding pin 74, the second left sliding pin 73, the second right sliding pin 74 is the second above-mentioned sliding pin, be located at the left sliding panel 61 of cylinder body 12 both sides of support oil cylinder 1, right sliding panel 62 can be respectively applied for against the second left sliding pin 73, the second right sliding pin 74, left side sliding panel 61, right sliding panel 62 is the second above-mentioned sliding panel, the left and right sides of second backing plate 32 all be subjected to from support oil cylinder 1 against power, can make that second backing plate 32 is stressed balanced more, can more easily rotate around it axle and rotate.
In the more excellent scheme, part number for the side of reducing support oil cylinder 1, make that the structure of support oil cylinder 1 is simpler and more direct, only support oil cylinder 1 each side only establishes a sliding panel, be left sliding panel 61, right sliding panel 62, a first above-mentioned sliding panel, second an above-mentioned sliding panel can be integrated into this left side sliding panel 61, and another first above-mentioned sliding panel, another second above-mentioned sliding panel can be integrated into this right side sliding panel 62; Described first left sliding pin 71, the second left sliding pin 73 shifts to install, and left sliding panel 61 can be simultaneously against first left sliding pin 71, the second left sliding pin 73; Described first right sliding pin 72, the second right sliding pin 74 shifts to install, and right sliding panel 62 can be simultaneously against first right sliding pin 72, the second right sliding pin 74.
In the preferred version, in order to prevent owing to the ground injustice that contacts with first backing plate 31, second backing plate 32, first backing plate 31, second backing plate 32 rotate, can on first backing plate 31, second backing plate 32, concentric holes be set, this concentric holes runs through first backing plate 31, second backing plate 32, after first backing plate 31, second backing plate 32 launch fully, can adopt bearing pin 8 to insert in the above-mentioned concentric holes, make bearing pin 8 run through first backing plate 31, second backing plate 32, thereby can avoid first backing plate 31, second backing plate 32 to rotate after launching fully.
The support leg device of this structure, when the piston rod 11 of support oil cylinder 1 is withdrawn, supporting leg seat 2, first backing plate 31, second backing plate, 32, first left sliding pin 71, second left sliding pin 73, first right sliding pin 72, the second right sliding pin 74 be upward movement together, when first left sliding pin 71, second left sliding pin 73, first right sliding pin 72, the second right sliding pin 74 rise to respectively with left sliding panel 61, when right sliding panel 62 contacts, shown in Fig. 2 b, first backing plate 31, second backing plate 32 stop upwards straight-line motion; At this moment, under the effect of support oil cylinder 1, shown in Fig. 2 c, Fig. 2 d, first backing plate 31 is fulcrum with contact point, the first right sliding pin 72 of the first left sliding pin 71 and left sliding panel 61 with right sliding panel 62, and be that turning cylinder upwards rotates with the jointed shaft of first backing plate 31 and supporting leg seat 2, simultaneously, the first left sliding pin 71 slides at left sliding panel 61 medial surfaces, and the first right sliding pin 72 slides at right sliding panel 62 medial surfaces.
Equally, second backing plate 32 is fulcrum with contact point, the second right sliding pin 74 of the second left sliding pin 73 and left sliding panel 61 with right sliding panel 62, and be that turning cylinder upwards rotates with the jointed shaft of second backing plate 32 and supporting leg seat 2, simultaneously, the second left sliding pin 73 slides at left sliding panel 61 medial surfaces, and the second right sliding pin 74 slides at right sliding panel 62 medial surfaces; When piston rod 11 contractions put in place, shown in Fig. 2 e, first backing plate 31, second backing plate 32 were complete rounding state.
When the piston rod 11 of support oil cylinder 1 stretches out, by gravity, first backing plate 31, second backing plate 32 rotates around corresponding rotating shaft respectively, equally, the first left sliding pin 71, the second left sliding pin 73, the first right sliding pin 72, the second right sliding pin 74 is respectively at first sliding panel, the medial surface of second sliding panel slides, until first backing plate 31, second backing plate 32 launches fully, bearing pin 8 is inserted first backing plate 31, in the concentric holes of second backing plate 32, piston rod 11 continues to stretch out, first backing plate 31, second backing plate, 32 straight lines move downward until contacting with ground.
The support leg device of this structure is integrated in backing plate on the supporting leg seat, and backing plate can be realized respectively with the lifting of support oil cylinder piston rod drawing in automatically and launching, and need not artificial participation, has improved the automation of operation degree greatly; Compared with prior art, all need not to pick and place backing plate when support oil cylinder expansion and gathering, do not need to be provided for specially placing the backing plate box of backing plate, reduced cost, saved the space on the walking engineering truck; Slide relative can not take place between supporting leg seat and the backing plate, improved safety.
In the preferred version, begin to launch by rounding state for the ease of first backing plate 31, can between first backing plate 31 and supporting leg seat 2, be provided with first spring 91, as shown in Figure 5, one end of first spring 91 is connected with the upper surface of first backing plate 31, and the other end is connected with supporting leg seat 2.When first backing plate 31 draws certain position in, 31 pairs first springs of first backing plate 91 produce pressure, make the backing plate 31 of winning when rounding state, keep first spring 91 is produced precompressed compression, when first backing plate 31 begins to launch, piston rod 11 stretches out, under the precompressed compression effect of first spring 91, first backing plate 31 moving axis that rotates rotates, until launching fully.
In the preferred version, begin to launch by rounding state for the ease of second backing plate 32, can between second backing plate 32 and supporting leg seat 2, be provided with second spring 92, as shown in Figure 5, one end of second spring 92 is connected with the upper surface of second backing plate 32, the other end is connected with supporting leg seat 2, when second backing plate 32 draws certain position in, 32 pairs second springs of second backing plate 92 produce pressure, make that second backing plate 32 keeps second spring 92 is produced precompressed compression when rounding state, when second backing plate 32 begins to launch, piston rod 11 stretches out, under the precompressed compression effect of second spring 92, second backing plate 32 moving axis that rotates rotates, until launching fully.
In the foregoing description, first backing plate 31, second backing plate 32 all adopt semicircle backing plate, and the utility model is not limited thereto, and first backing plate 31, second backing plate 32 also can adopt rectangle backing plate, triangle backing plate etc.
In the foregoing description, be equipped with two sliding pins on first backing plate 31, second backing plate 32, the utility model is not limited thereto, and on each backing plate one or more sliding pins can be set, and these schemes all should be in protection domain of the present utility model.
In the foregoing description; adopt first left sliding pin 71, the second left sliding pin 73 of left 61 whiles of sliding panel against homonymy; adopt first right sliding pin 72, the second right sliding pin 74 of right 62 whiles of sliding panel against homonymy; the utility model is not limited thereto; four sliding panels can be set respectively separately against first left sliding pin 71, second left sliding pin 73, first right sliding pin 72, the second right sliding pin 74; this scheme will make that the structure of support oil cylinder 1 is complicated; do not advise adopting this scheme, but this scheme also should be in protection domain of the present utility model.
In the foregoing description; the both sides, bottom surface of supporting leg seat are hinged with first backing plate, second backing plate respectively; the utility model is not limited thereto; hinged at least two backing plates can be distinguished in the both sides, bottom surface of supporting leg seat; this structure makes the complex structure of supporting leg seat bottom surface; do not advise adopting this scheme, but this scheme also should be in protection domain of the present utility model.
The utility model also provides a kind of construction machinery and equipment with above-mentioned support leg device, because above-mentioned support leg device has above-mentioned technique effect, the construction machinery and equipment with this support leg device also should possess the corresponding techniques effect, no longer is described in detail at this.
The above only is the description of the preferred implementation of utility model; should be understood that; because the finiteness of literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. support leg device, comprise support oil cylinder (1), supporting leg seat (2), described supporting leg seat (2) is fixed on the bottom of the piston rod (11) of described support oil cylinder (1), it is characterized in that, the both sides, bottom surface of described supporting leg seat (2) are hinged with first backing plate (31) at least respectively, second backing plate (32), the upper surface inboard of described first backing plate (31) is provided with and is no less than one first sliding pin, the upper surface inboard of described second backing plate (32) is provided with and is no less than one second sliding pin, and the cylinder body (12) of described support oil cylinder (1) is provided with and described first sliding pin, corresponding first sliding panel of second sliding pin, second sliding panel.
2. support leg device according to claim 1, it is characterized in that, the left and right sides of described first backing plate (31) is respectively equipped with the first left sliding pin (71), the first right sliding pin (72), and the left and right sides of described second backing plate (32) is respectively equipped with the second left sliding pin (73), the second right sliding pin (74).
3. support leg device according to claim 2, it is characterized in that, the described first left sliding pin (71), the second left sliding pin (73) shift to install, and the left side of the cylinder body (12) of described support oil cylinder (1) is provided with and is used for the left sliding panel (61) of while against the described first left sliding pin (71), the described second left sliding pin (73).
4. according to claim 2 or 3 described support leg devices, it is characterized in that, the described first right sliding pin (72), the second right sliding pin (74) shift to install, and the right side of the cylinder body (12) of described support oil cylinder (1) is provided with and is used for the right sliding panel (62) of while against the described first right sliding pin (72), the described second right sliding pin (74).
5. support leg device according to claim 1 is characterized in that, also comprises bearing pin (8), and described bearing pin (8) can run through described first backing plate (31), described second backing plate (32) simultaneously.
6. support leg device according to claim 1 is characterized in that, also is provided with first spring (91) between described first backing plate (31) and the supporting leg seat (2).
7. according to claim 1 or 6 described support leg devices, it is characterized in that, also be provided with second spring (92) between described second backing plate (32) and the supporting leg.
8. support leg device according to claim 1 is characterized in that, described first backing plate (31), described second backing plate (32) are semicircle backing plate, rectangle backing plate or triangle backing plate.
9. a construction machinery and equipment is characterized in that, this walking type construction machinery comprises each described support leg device of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201470059U CN202029826U (en) | 2011-05-10 | 2011-05-10 | Support leg device and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201470059U CN202029826U (en) | 2011-05-10 | 2011-05-10 | Support leg device and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202029826U true CN202029826U (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201470059U Expired - Fee Related CN202029826U (en) | 2011-05-10 | 2011-05-10 | Support leg device and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202029826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590724A (en) * | 2020-12-04 | 2021-04-02 | 中国十七冶集团有限公司 | Concrete pump truck support leg device and using method |
-
2011
- 2011-05-10 CN CN2011201470059U patent/CN202029826U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590724A (en) * | 2020-12-04 | 2021-04-02 | 中国十七冶集团有限公司 | Concrete pump truck support leg device and using method |
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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: 20130508 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130508 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. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20150510 |
|
| EXPY | Termination of patent right or utility model |