CN103993600B - A kind of multiple degrees of freedom Automatic piling device and pile-driving method - Google Patents
A kind of multiple degrees of freedom Automatic piling device and pile-driving method Download PDFInfo
- Publication number
- CN103993600B CN103993600B CN201410214481.6A CN201410214481A CN103993600B CN 103993600 B CN103993600 B CN 103993600B CN 201410214481 A CN201410214481 A CN 201410214481A CN 103993600 B CN103993600 B CN 103993600B
- Authority
- CN
- China
- Prior art keywords
- timber
- piling
- trip rod
- positioning pipe
- multiple degrees
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The present invention relates to a kind of multiple degrees of freedom Automatic piling device and pile-driving method, pile driving rig comprises piling mechanism, water tank, frame and discharger, and piling mechanism, water tank and discharger are arranged on above frame; Described piling mechanism comprises motor, band wheels, lever and trip rod, and motor is connected with band wheels, and band wheels are connected with lever, and lever is connected with trip rod; Described discharger comprises barrel, tapping hole, timber lead-over groove and positioning pipe, and timber lead-over groove and positioning pipe are arranged on below frame, and timber lead-over groove is between positioning pipe and tapping hole, and positioning pipe is positioned at immediately below trip rod.Multiple degrees of freedom Automatic piling device of the present invention is that one can lay timber automatically, and piling quality is high, easy to use, and volume is little, and noise is little, and safety factor is high, the pile driving rig that piling efficiency is high.
Description
Technical field
The invention belongs to piling machinery field, relate in particular to a kind of multiple degrees of freedom Automatic piling device and pile-driving method.
Background technology
Pile driver has a wide range of applications in agricultural production, especially when building agricultural greenhouse.In most cases, peasant manually drives piles with iron hammer, or first electricity consumption brill is holed on the ground, and then is thrown into by timber.The timber beaten with iron hammer and frictional ground force are comparatively large, and when running into strong wind, timber can not be pulled out ground, but larger concerning labour intensity peasant.With electric drill boring piling labour intensity less, but timber and frictional ground force less, when running into strong wind, timber is easily pulled out ground.Some booths all will carry out the dismounting of timber and reinstall every year, plant different crops with this, thus piling concerning peasant be one frequently, work that labour intensity is large.More existing engineering piling body is long-pending comparatively large, heavier, is all generally drive piles with weight, needs higher height just timber can be thrown into, if piling is highly certain, then need very heavy weight.Distance between two booths is generally 1.3 meters, and working space is less, and the pile driver that this type of volume is larger cannot be driven piles in booth.
CN203361154U discloses a kind of pile driver, comprise actuating unit, band wheels, dead man, cross bar, support and weight, actuating unit rotating band wheels are utilized to rotate, and drive dead man to rotate, when dead man turns to certain angle, paddle pressure cross bar end, makes weight lift by lever principle; When dead man turns to another angle, paddle and cross bar disengage, and weight falls under gravity, complete and once drive piles.The pile driver of this programme needs manually to lay timber when carrying out booth piling, and in the process of piling, need manually to buttress timber, to prevent from occurring in piling process the situation that timber tilts, otherwise can affect piling quality, therefore safety factor is low.In addition, the pile driver of this programme needs a dead lift to carry out the piling of diverse location, and agricultural greenhouse needs to beat a lot of timber, rely on the words of a dead lift pile driver can increase labour intensity to peasant if simple, use inconvenience to peasant, and the plectrum of pile driver and beam contact place noise larger.
Develop one and automatically can lay timber, piling quality is high, and safety factor is high, and volume is little, easy to use, and noise is little, and the high pile driving rig of piling efficiency is the Gospel of peasant, is also the emphasis studied of those skilled in the art and direction.
Summary of the invention
The object of the invention is to overcome existing pile driver and automatically can not lay timber, cannot piling quality be ensured, use inconvenience, too heavy, noise is large, and safety factor is low, to drive piles inefficient shortcoming, there is provided one automatically can lay timber, piling quality is high, easy to use, volume is little, noise is little, and safety factor is high, the pile driving rig that piling efficiency is high.
For this reason, the invention provides a kind of multiple degrees of freedom Automatic piling device, comprise piling mechanism, water tank, frame and discharger, piling mechanism, water tank and discharger are arranged on above frame; Described piling mechanism comprises motor, band wheels, lever and trip rod, and motor is connected with band wheels, and band wheels are connected with lever, and lever is connected with trip rod; Described discharger comprises barrel, tapping hole, timber lead-over groove and positioning pipe, and timber lead-over groove and positioning pipe are arranged on below frame, and timber lead-over groove is between positioning pipe and tapping hole, and positioning pipe is positioned at immediately below trip rod.
According to the present invention, a kind of structure of discharger barrel is rotary cylindrical shape, and there is the timber through hole holding timber barrel inside, rotates barrel and makes timber through hole and tapping hole carry out blowing point-blank.Above barrel, second handle is installed, rotating second handle can drive barrel to rotate, when timber through hole and tapping hole are at straight line, the timber in timber through hole can enter into timber lead-over groove through tapping hole, and timber can enter into positioning pipe by timber lead-over groove.Timber is put in positioning pipe and carries out piling and can improve piling quality, ensure the situation that there will not be timber to tilt in piling process, do not need artificial hand steered timber, avoid occurring security incident in piling process, can safety factor be improved thus.When carrying out second time and driving piles, again rotate the second handle of barrel, make timber through hole and tapping hole point-blank, thus make timber enter into positioning pipe.
According to the present invention, the another kind of structure of discharger barrel is that barrel side is provided with spring, and opposite side is contained with timber, and blowing switch is positioned at the upper end of timber, and tapping hole is positioned at the lower end of timber.Pressed downwards by the blowing switch of discharger, timber can be extruded discharger, timber can enter into timber lead-over groove through tapping hole, and timber can enter into positioning pipe by timber lead-over groove.Timber is put in positioning pipe and carries out piling and can improve piling quality, ensure the situation that there will not be timber to tilt in piling process, do not need artificial hand steered timber, avoid occurring security incident in piling process, can safety factor be improved thus.After the timber of in discharger is forced out discharger, remaining timber will move under the action of the spring, the space stayed with the supplementary timber be forced out, when carrying out second time and driving piles, again press blowing switch, timber can be extruded discharger again, make timber enter into positioning pipe.
According to the present invention, motor and band wheels are fixed in gripper shoe, and band wheels comprise the first belt wheel, the second belt wheel, cam and support, and the first belt wheel and the second belt wheel are by Belt Drive, and the second belt wheel and cam are fixed on support by axle.Cam and lever, lever and trip rod contact position are provided with rubber pad, the noise produced when can reduce pile driving rig work.Open motor switch and make electric machine rotation, the first belt wheel can be driven to rotate, the second belt wheel can be driven to rotate, moving cam can be with to rotate, lever can be made to move up and down, the trip rod be connected with lever also can move up and down, and can clash into the timber in the positioning pipe immediately below trip rod when trip rod moves down, and can realize piling thus.
According to the present invention, pile driving rig also comprises sprocket wheel, and sprocket wheel is connected with gripper shoe.Sprocket wheel is provided with first handle, frame is fixed with chain, rotate first handle and movable sprocket can be with to rotate along chain.In the process of piling, the center of gravity of timber declines gradually, and in order to enable trip rod clash into timber continuously, the center of gravity of trip rod also should decline gradually.In the process of piling, shake first handle makes sprocket wheel move to trip rod direction, gripper shoe can be driven to move to trip rod direction, the position that cam can be made to contact with lever is moved to trip rod direction, the work plane that lever can be made thus to contact with trip rod declines, namely the center of gravity of trip rod can be made to decline, trip rod can be made thus to decline along with the decline of timber, thus continuous piling can be realized.
According to the present invention, water tank comprises switch and water pipe, and the mouth of pipe of water pipe is towards the ground below positioning pipe.First open the switch of water tank before piling, water pipe can be made to the ground water spray below positioning pipe, the frictional force on timber and ground in piling process can be reduced thus, thus piling efficiency can be improved.
According to the present invention, frame comprises support column, runner, handrail and screw, and support column upper end and frame are fixed, and runner is installed in lower end, and handrail is fixed on frame side, and screw upper end is arranged in frame.Runner and handrail can make pile driving rig movement flexibly in farmland, facilitate the position of mobile pile driving rig.After pile driving rig being moved to the position needing piling, the screw in frame is screwed in ground, can prevents pile driving rig in piling process from trembling.
Present invention also offers a kind of pile-driving method of multiple degrees of freedom Automatic piling device, said method comprising the steps of:
(1) pile driving rig is moved to the position needing piling, the screw in frame is screwed in ground;
(2) switch opening water tank makes water pipe to the ground water spray below positioning pipe;
(3) operate discharger, make the timber in barrel enter into positioning pipe;
(4) open motor switch and make electric machine rotation, band wheels are rotated, drive lever to move up and down, thus drive trip rod to move up and down, the timber in the positioning pipe immediately below trip rod can be clashed into when trip rod moves down, thus realize piling;
(5) in the process of piling, rotating sprocket enables trip rod clash into timber continuously, and timber is squeezed into ground.
Multiple degrees of freedom Automatic piling device of the present invention can lay timber automatically, is placed in positioning pipe by timber and drives piles, can ensure the situation that there will not be timber to tilt in piling process, thus can improve piling quality, can also improve operating safety factor; The volume of pile driving rig is little, lightweight, can movement flexibly in farmland, and noise is little, easy to use; Adopt Automatic piling device of the present invention to carry out driving piles and can reduce the frictional force on timber and ground in piling process, thus piling efficiency can be improved.
Accompanying drawing explanation
Fig. 1 and Fig. 2 is the structural representation of multiple degrees of freedom Automatic piling device of the present invention.
In Fig. 1,1. handrail; 2. support column; 3. runner; 4. frame; 5. screw; 6. water tank; 7. switch; 8. water pipe; 9. second handle; 10. timber through hole; 11. tapping holes; 12. timber lead-over grooves; 13. positioning pipes; 14. trip rods; 15. levers; 16. cams; 17. second belt wheels; 18. first belt wheels; 19. flat rubber beltings; 20. supports; 21. motors; 22. gripper shoes; 23. sprocket wheels; 24. chains; 25. first handles; 26. timbers.
In Fig. 2,1. handrail; 2. support column; 3. runner; 4. frame; 5. screw; 6. water tank; 7. switch; 8. water pipe; 9. blowing switch; 10. spring; 11. timbers; 12. timber lead-over grooves; 13. positioning pipes; 14. trip rods; 15. levers; 16. cams; 17. second belt wheels; 18. first belt wheels; 19. flat rubber beltings; 20. supports; 21. motors; 22. gripper shoes; 23. sprocket wheels; 24. chains; 25. first handles.
Detailed description of the invention
Below the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
Embodiment 1
As shown in Figure 1, multiple degrees of freedom Automatic piling device of the present invention comprises handrail 1, support column 2, runner 3, frame 4, screw 5, water tank 6, switch 7, water pipe 8, second handle 9, timber through hole 10, tapping hole 11, timber lead-over groove 12, positioning pipe 13, trip rod 14, lever 15, cam 16, the second belt wheel 17, first belt wheel 18, flat rubber belting 19, support 20, motor 21, gripper shoe 22, sprocket wheel 23, chain 24, first handle 25, timber 26.
Automatic piling device is moved to the position needing piling by the handrail 1 holding frame 4, is screwed in ground, trembles screw 5 when working to prevent pile driving rig, improves safety.Open the switch 7 of water tank 6, water pipe 8 to the ground water spray below positioning pipe 13, can reduce the frictional force on timber and ground in piling process, thus can improve piling efficiency thus.Rotate second handle 9, barrel can be driven to rotate, when timber through hole 10 and tapping hole 11 are at straight line, the timber 26 in timber through hole can enter into timber lead-over groove 12 through tapping hole 11, and timber can enter into positioning pipe 13 by timber lead-over groove 12.Timber is put in positioning pipe and carries out piling and can improve piling quality, ensure the situation that there will not be timber to tilt in piling process, ensure wooden pile integrity.When carrying out second time and driving piles, again rotate the second handle 9 of barrel, make timber through hole 10 and tapping hole 11 point-blank, thus make timber enter into positioning pipe 13.Opening motor switch makes motor 21 rotate, electric machine rotation can drive the first belt wheel 18 to rotate, the second belt wheel 17 can be driven to rotate, moving cam 16 can be with to rotate, lever 15 can be made to move up and down, the trip rod 14 be connected with lever 15 also can move up and down, and can clash into the timber in the positioning pipe 13 immediately below trip rod when trip rod 14 moves down, and can realize piling thus.In the process of piling, the position of timber declines gradually, and in order to enable trip rod strike timber always, the position of trip rod also should decline gradually.In the process of piling, shake first handle 25 makes sprocket wheel 23 move to trip rod 14 direction, gripper shoe 22 can be driven to move to trip rod 14 direction, the position that cam 16 can be made to contact with lever 15 is moved to trip rod 14 direction, the work plane that lever 15 can be made to contact with trip rod 14 declines, the center of gravity of trip rod 14 can be made to decline, trip rod can be made thus to decline along with the decline of timber, thus continuous piling can be realized.
Embodiment 2
As shown in Figure 2, multiple degrees of freedom Automatic piling device of the present invention comprises handrail 1, support column 2, runner 3, frame 4, screw 5, water tank 6, switch 7, water pipe 8, blowing switch 9, spring 10, timber 11, timber lead-over groove 12, positioning pipe 13, trip rod 14, lever 15, cam 16, the second belt wheel 17, first belt wheel 18, flat rubber belting 19, support 20, motor 21, gripper shoe 22, sprocket wheel 23, chain 24, first handle 25.
Automatic piling device is moved to the position needing piling by the handrail 1 holding frame 4, is screwed in ground, trembles screw 5 when working to prevent pile driving rig.Open the switch 7 of water tank 6, water pipe 8 to the ground water spray below positioning pipe 13, can reduce the frictional force on timber and ground in piling process, thus can increase work efficiency thus.Pressed downwards by the blowing switch 9 of discharger, timber can be extruded discharger, timber can enter into timber lead-over groove 12 through tapping hole, and timber can enter into positioning pipe 13 by timber lead-over groove 12.Timber is put in positioning pipe and carries out piling and can improve piling quality, ensure the situation that there will not be timber to tilt in piling process, ensure wooden pile integrity.After the timber of in discharger is forced out discharger, remaining timber will move under the effect of spring 10, with the space that the supplementary timber be forced out stays, when carrying out second time and driving piles, again press blowing switch 9, timber can be extruded discharger again, make timber enter into positioning pipe 13.Opening motor switch makes motor 21 rotate, electric machine rotation can drive the first belt wheel 18 to rotate, the second belt wheel 17 can be driven to rotate, moving cam 16 can be with to rotate, lever 15 can be made to move up and down, the trip rod 14 be connected with lever 15 also can move up and down, and can clash into the timber in the positioning pipe 13 immediately below trip rod when trip rod 14 moves down, and can realize piling thus.In the process of piling, the position of timber declines gradually, and in order to enable trip rod strike timber always, the position of trip rod also should decline gradually.In the process of piling, shake first handle 25 makes sprocket wheel 23 move to trip rod 14 direction, gripper shoe 22 can be driven to move to trip rod 14 direction, the position that cam 16 can be made to contact with lever 15 is moved to trip rod 14 direction, the work plane that lever 15 can be made to contact with trip rod 14 declines, the center of gravity of trip rod 14 can be made to decline, trip rod can be made thus to decline along with the decline of timber, thus continuous piling can be realized.
Claims (8)
1. a multiple degrees of freedom Automatic piling device, comprise piling mechanism, water tank and frame, it is characterized in that, described pile driving rig also comprises discharger, and piling mechanism, water tank and discharger are arranged on above frame; Described piling mechanism comprises motor, band wheels, lever and trip rod, and motor is connected with band wheels, and band wheels are connected with lever, and lever is connected with trip rod; Described discharger comprises barrel, tapping hole, timber lead-over groove and positioning pipe, and timber lead-over groove and positioning pipe are arranged on below frame, and timber lead-over groove is between positioning pipe and tapping hole, and positioning pipe is positioned at immediately below trip rod.
2. multiple degrees of freedom Automatic piling device as claimed in claim 1, it is characterized in that, the barrel of described discharger is rotary cylindrical shape, and there is the timber through hole holding timber barrel inside, rotates barrel and makes timber through hole and tapping hole carry out blowing point-blank.
3. multiple degrees of freedom Automatic piling device as claimed in claim 1, it is characterized in that, described discharger also comprises blowing switch, and the side of barrel is provided with spring, and opposite side is contained with timber, and blowing switch is positioned at the upper end of timber, and tapping hole is positioned at the lower end of timber.
4. multiple degrees of freedom Automatic piling device as claimed in claim 2 or claim 3, it is characterized in that, described motor and band wheels are fixed in gripper shoe, band wheels comprise the first belt wheel, the second belt wheel, cam and support, first belt wheel and the second belt wheel are by Belt Drive, and the second belt wheel and cam are fixed on support by axle.
5. multiple degrees of freedom Automatic piling device as claimed in claim 2 or claim 3, it is characterized in that, described pile driving rig also comprises sprocket wheel, and sprocket wheel is connected with gripper shoe.
6. multiple degrees of freedom Automatic piling device as claimed in claim 2 or claim 3, it is characterized in that, described water tank comprises switch and water pipe, and the mouth of pipe of water pipe is towards the ground below positioning pipe.
7. multiple degrees of freedom Automatic piling device as claimed in claim 2 or claim 3, it is characterized in that, described frame arranges support column, runner, handrail and screw, support column upper end and frame are fixed, runner is installed in lower end, and handrail is fixed on frame side, and screw upper end is arranged in frame.
8. use as arbitrary in claim 1-7 as described in the pile-driving method of multiple degrees of freedom Automatic piling device, it is characterized in that, said method comprising the steps of:
(1) pile driving rig is moved to the position needing piling, the screw in frame is screwed in ground;
(2) switch opening water tank makes water pipe to the ground water spray below positioning pipe;
(3) operate discharger, make the timber in barrel enter into positioning pipe;
(4) open motor switch and make electric machine rotation, band wheels are rotated, drive lever to move up and down, thus drive trip rod to move up and down, the timber in the positioning pipe immediately below trip rod can be clashed into when trip rod moves down, thus realize piling;
(5) in the process of piling, rotating sprocket makes sprocket wheel move along chain-driving gripper shoe to trip rod direction, the position that cam is contacted with lever is moved to trip rod direction, thus trip rod is declined along with the decline of timber, realizes driving piles continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410214481.6A CN103993600B (en) | 2014-05-20 | 2014-05-20 | A kind of multiple degrees of freedom Automatic piling device and pile-driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410214481.6A CN103993600B (en) | 2014-05-20 | 2014-05-20 | A kind of multiple degrees of freedom Automatic piling device and pile-driving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103993600A CN103993600A (en) | 2014-08-20 |
| CN103993600B true CN103993600B (en) | 2015-10-28 |
Family
ID=51307916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410214481.6A Expired - Fee Related CN103993600B (en) | 2014-05-20 | 2014-05-20 | A kind of multiple degrees of freedom Automatic piling device and pile-driving method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103993600B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507319B (en) * | 2016-01-29 | 2017-09-05 | 青岛科技大学 | A kind of double continuous piling equipment |
| CN105544539B (en) * | 2016-01-29 | 2017-09-29 | 青岛科技大学 | A kind of double Automatic piling device of high-efficiency compact |
| CN105569042B (en) * | 2016-01-29 | 2017-08-29 | 青岛科技大学 | A kind of 60 ° of double Automatic piling devices |
| CN107989039B (en) * | 2017-11-10 | 2019-10-22 | 浙江海洋大学 | Civil engineering piling machine |
| CN109566180B (en) * | 2018-12-10 | 2023-10-13 | 江苏省农业科学院 | Piling and inserting integrated device for greenhouse |
| CN112006009B (en) * | 2020-08-06 | 2022-10-18 | 刘桂敏 | A animal of holing administers device for farmland protection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5425079A (en) * | 1979-12-28 | 1981-07-02 | Petracci, B. | Automatic control of winches of pile drivers |
| JPH07310319A (en) * | 1994-05-19 | 1995-11-28 | Katsuyuki Hasegawa | Piling device and piling attachment |
| JP2000170163A (en) * | 1998-12-08 | 2000-06-20 | Taisei Corp | Pile driver |
| CN202112098U (en) * | 2011-05-31 | 2012-01-18 | 启东市农业机械化技术推广站 | Piling machine for vegetable greenhouse |
| CN103031844A (en) * | 2011-09-30 | 2013-04-10 | 西门子公司 | Method and device for driving a multiplicity of piles into a seabed |
| CN203361154U (en) * | 2013-05-28 | 2013-12-25 | 戴文平 | Pile driver |
-
2014
- 2014-05-20 CN CN201410214481.6A patent/CN103993600B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5425079A (en) * | 1979-12-28 | 1981-07-02 | Petracci, B. | Automatic control of winches of pile drivers |
| JPH07310319A (en) * | 1994-05-19 | 1995-11-28 | Katsuyuki Hasegawa | Piling device and piling attachment |
| JP2000170163A (en) * | 1998-12-08 | 2000-06-20 | Taisei Corp | Pile driver |
| CN202112098U (en) * | 2011-05-31 | 2012-01-18 | 启东市农业机械化技术推广站 | Piling machine for vegetable greenhouse |
| CN103031844A (en) * | 2011-09-30 | 2013-04-10 | 西门子公司 | Method and device for driving a multiplicity of piles into a seabed |
| CN203361154U (en) * | 2013-05-28 | 2013-12-25 | 戴文平 | Pile driver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103993600A (en) | 2014-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103993600B (en) | A kind of multiple degrees of freedom Automatic piling device and pile-driving method | |
| CN103981865B (en) | A kind of manual pile driving rig of Portable Automatic charging and pile-driving method | |
| CN205778958U (en) | A kind of many drill booms jumbolter | |
| CN108132162A (en) | A kind of hydraulic engineering pipeline is laid with Soil K+adsorption very fast sampling device | |
| CN104500107A (en) | Lining steel arch frame installing groove grooving machine for treating existing railway tunnel defects | |
| CN101531327A (en) | Method for grabbing object by hydraulic pressure rotation grab loader and hydraulic pressure grab bucket | |
| CN108755685A (en) | A kind of building piling machine | |
| CN203947451U (en) | A kind of floater is salvaged system | |
| CN105507319B (en) | A kind of double continuous piling equipment | |
| CN205475226U (en) | Double automatic pile driver equipment of 60o | |
| CN203924023U (en) | A kind of garbage on water is salvaged system | |
| CN105370202B (en) | A kind of rock drill | |
| CN107217985B (en) | Sector type hollow drilling device | |
| CN202377142U (en) | Water injection machine | |
| CN209494534U (en) | A kind of device for putting drill-pipe stand for movement | |
| CN205557516U (en) | Double continuous pile driver equipment | |
| CN106049287A (en) | Device and method for automatically penetrating through rubber bar | |
| CN203716996U (en) | Single-prop erection device under coal mine for cart | |
| CN205135401U (en) | Rock drilling machine | |
| CN205703932U (en) | Suspended type hydraulic power operated wrench | |
| CN207537008U (en) | Running mechanism applied to erection crane | |
| CN105544539B (en) | A kind of double Automatic piling device of high-efficiency compact | |
| CN203403809U (en) | Torque-free drilling machine | |
| CN204252960U (en) | A kind of pumping unit balance weight moving device | |
| CN104196500A (en) | Ground control type safety bar device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20180520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |