CN101839265A - Series and parallel conversion hydraulic valve - Google Patents
Series and parallel conversion hydraulic valve Download PDFInfo
- Publication number
- CN101839265A CN101839265A CN 200910246045 CN200910246045A CN101839265A CN 101839265 A CN101839265 A CN 101839265A CN 200910246045 CN200910246045 CN 200910246045 CN 200910246045 A CN200910246045 A CN 200910246045A CN 101839265 A CN101839265 A CN 101839265A
- Authority
- CN
- China
- Prior art keywords
- valve seat
- oil
- spool
- hydraulic
- series
- 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 9
- 238000009825 accumulation Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 91
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to a series and parallel conversion hydraulic valve which ensures that the series and parallel conversion of a connection relation of a plurality of hydraulic executive elements connected with the hydraulic valve is realized. If a plurality of equal-diameter double-piston-rod hydraulic cylinders with the same model as the hydraulic valve are connected with the hydraulic valve, when the hydraulic cylinders work in a series state, the synchronous action can be realized; when the hydraulic cylinders work in a parallel state, synchronous errors among the hydraulic cylinders, which is caused by leakage, can be eliminated, the synchronous positions among the hydraulic cylinders can be adjusted, and meanwhile, the integral output force of the hydraulic cylinders can be increased. The invention overcomes the defects of difficult leakage compensation and easy position error accumulation of the traditional executive element series circuit, thereby the application value of the executive element series circuit is improved. Meanwhile, the invention also provides a hydraulic valve with simple control, lower cost and higher precision for a synchronization or linkage technology of a hydraulic system.
Description
Technical field
Patent of the present invention belongs to a kind of hydrovalve that makes a plurality of executive components realize series connection and conversion in parallel in hydraulic system, it is particularly related to the multi-cylinder series loop in the hydraulic system.
Background technique
At present, the method that hydraulic control technology is adopted on solution executive component stationary problem roughly has: multi-cylinder series connection synchronizing circuit, and the synchronous hydraulic motor loop, the closed loop control synchronizing circuit, the flow divider-combiner synchronizing circuit, mechanical rigid connects synchronizing circuit etc.; Another problem will make a plurality of executive components produce interlock exactly, and movement velocity keeps certain proportionate relationship each other, also be basically to adopt flow divider-combiner, and closed loop control, the executive component series loop realizes.But executive component series loop, the synchronous hydraulic motor loop, all there is the problem of easy cumulative error and error concealment difficulty in the flow divider-combiner loop, and close loop control circuit control is complicated, cost is higher, and mechanical rigid connects synchronously then often because of machine general structure and environmental limit performance difficulty.
Summary of the invention
Patent of the present invention problem to be solved is to provide a kind of hydrovalve for Hydraulic Synchronizing or interlock technology, its appearance has remedied the deficiency of traditional multi-cylinder series loop, can not only realize the synchronous and series connection interlock of series connection reliably, and the positional error that can eliminate effectively because of leaking generation makes it not produce accumulation, thereby guaranteed the precision of synchronous or interlock, improved the use value of multi-cylinder series loop.
The technical problem of patent of the present invention is implemented by the following technical programs: a kind ofly can make a plurality of hydraulic actuator working staties realize series connection and the hydrovalve of freely changing in parallel, comprise valve seat (1) and be matched with valve seat (1) through hole interior and can be along the axially movable spool of through hole (2).It is characterized in that:, can realize and the interior oil pocket A of valve seat (1) by the position of conversion spool (2) in valve seat (1)
1, B
1, A
2, B
2, A
3, B
3, A
4, B
4... the annexation of a plurality of hydraulic actuators that link to each other realizes series connection and conversion in parallel.
Aforesaid valve seat (1) has a through hole and axially is distributed in the interior oil pocket A of through hole in pairs in proper order
1, B
1, A
2, B
2, A
3, B
3, A
4, B
4... and draw the outer surface of oil through separately to valve seat (1), be used for directly or indirectly connecting hydraulic actuator.
Aforesaid spool (2) axially is distributed with A in pairs in proper order on its cylndrical surface
1', B
1', A
2', B
2', A
3', B
3', A
4', B
4' ... wait oil groove or oilhole, and A
1', A
2', A
3', A
4' ... interconnect B
1', B
2', B
3', B
4' ... interconnect; Spool (2) is gone up and is also had B simultaneously
1", A
2", B
2", A
3", B
3", A
4" ... wait oil groove or oilhole axially to intert and be distributed in B
1', A
2', B
2', A
3', B
3', A
4', B
4' ... wait between oil groove or oilhole, and oil groove or oilhole B
1" and A
2", B
2" and A
3", B
3" and A
4" ... be communicated with respectively.
When aforesaid spool (2) is positioned at a wherein end of valve seat (1), the oil pocket A on the valve seat (1)
1, A
2, A
3, A
4... by corresponding respectively with it oil groove or the oilhole A that is communicated with on the spool (2)
1', A
2', A
3', A
4' ... interconnect the oil pocket B on the valve seat (1)
1, B
2, B
3, B
4... by corresponding respectively with it oil groove or the oilhole B that is communicated with on the spool (2)
1', B
2', B
3', B
4' ... interconnect; And when spool (2) is positioned at the other end of valve seat (1), the first road oil pocket A at the two ends, the left and right sides on the valve seat (1) then
1And B
4Do not communicated the oil pocket B on the valve seat (1) by the sealing of the cylndrical surface on the spool (2) respectively with any oil pocket
1And A
2, B
2And A
3, B
3And A
4... by the oil groove or the oilhole B of spool (2)
1" and A
2", B
2" and A
3", B
3" and A
4" ... be communicated with respectively.
This hydrovalve can be controlled by various forms of mechanisms or guide and realize the position switching of spool (2) in valve seat (1), thereby make the annexation of a plurality of hydraulic actuators that valve seat (1) connected realize series connection and conversion in parallel according to need of work, can make multi-cylinder series connection synchronizing circuit under series connection, realize being synchronized with the movement reliably such as it, and in each work cycle, can both under state in parallel, proofread and correct the sync bit error, avoid the accumulation of synchronization error, thereby guaranteed synchronous precision.
Description of drawings
Fig. 1 is the main TV structure figure (state in parallel) of patent of the present invention
Fig. 2 is the main TV structure figure (series connection) of patent of the present invention
Fig. 3 looks sectional view for the master of spool
Fig. 4 is the vertical view cutaway drawing of spool
Fig. 5 is the plan view of valve seat
Fig. 6 is the hydraulic function symbol of patent of the present invention
Fig. 7 is first embodiment's hydraulic schematic diagram of patent of the present invention
Fig. 8 is second embodiment's hydraulic schematic diagram of patent of the present invention
Fig. 9 is the 3rd embodiment's hydraulic schematic diagram of patent of the present invention
Embodiment
Below in conjunction with above-mentioned accompanying drawing patent of the present invention is described in detail again, patent hydrovalve of the present invention can be based on making the hydraulic actuator realization series and parallel conversion more than two and designing, first embodiment: based on four oil hydraulic cylinder series connection are designed synchronously, valve seat (1) and spool (2) all have the described feature of aforementioned techniques scheme, and valve seat (1) has oil pocket A
1, B
1, A
2, B
2, A
3, B
3, A
4, B
4Totally eight roads, spool (2) has oil groove A
1', B
1', A
2', B
2', A
3', B
3', A
4', B
4' totally eight roads and oil groove B
1", A
2", B
2", A
3", B
3", A
4" totally six roads; Present embodiment adopts above-mentioned valve seat (1) and spool (2) to cooperate left valve gap (4), right valve gap (3), pilot reversing valve (5) and relevant Sealing, connecting screw, spring etc. to constitute complete series and parallel changing valve V
2, its hydraulic function symbol as shown in Figure 6.
Referring to Fig. 7, four same model oil hydraulic cylinder G
1, G
2, G
3, G
4, the three-position four-way valve V of bit function in the O type
1, and above-mentioned series and parallel changing valve V
2Connect by mode shown in the figure, wherein four oil hydraulic cylinders are the structure that double piston-rod and two ends diameter of piston rod equate.
System is first installs or during maintenance, and when 1DT and 3DT get electricly, four oil hydraulic cylinders are at V
2Be in state in parallel, i.e. G under the effect of following bit function
1, G
2, G
3, G
4Lower oil cavitie interconnect G
1, G
2, G
3, G
4Upper oil cavitie interconnect, this moment at V
2Under the effect of following bit function, system pressure oil can pass through V
1Right bit function enter G simultaneously
1, G
2, G
3, G
4Lower oil cavitie, and G
1, G
2, G
3, G
4Upper oil cavitie then pass through V
1Oil return, four oil hydraulic cylinders are carried out ascending motion under the effect of pressure oil; When 2DT and 3DT get electricly, four oil hydraulic cylinders are at V
2Still handle state in parallel under the effect of following bit function, this moment is at V
2Under the effect of following bit function, pressure oil can pass through V
1Left bit function enter G
1, G
2, G
3, G
4Upper oil cavitie, and G
1, G
2, G
3, G
4Lower oil cavitie then pass through V
1Oil return, four oil hydraulic cylinders are carried out descending motion under the effect of pressure oil; Rise and fall campaign several times so repeatedly, then the air in the hydraulic system pipeline can be got rid of, and can guarantee that four oil hydraulic cylinders all move to the lowermost end position, thereby has determined initial sync bit.
During the system proper functioning, when 1DT gets electricly, 3DT must not electricity, and four oil hydraulic cylinders are at V
2Be in series connection under the effect of last bit function, i.e. G
1Upper oil cavitie and G
2Lower oil cavitie be communicated with G
2Upper oil cavitie and G
3Lower oil cavitie be communicated with G
3Upper oil cavitie and G
4Lower oil cavitie be communicated with, this moment is at V
2Under the effect of last bit function, system pressure oil can pass through V
1Right bit function only enter G
1Lower oil cavitie, promote G
1Carry out vertical motion, G
1Upper oil cavitie produce pressure and enter G
2Lower oil cavitie promote G
2Carry out vertical motion, G
2Upper oil cavitie produce pressure and enter G
3Lower oil cavitie promote G
3Carry out vertical motion, G
3Upper oil cavitie produce pressure and enter G
4Lower oil cavitie promote G
4Carry out vertical motion, promptly four oil hydraulic cylinders are carried out vertical motion simultaneously, because of four oil hydraulic cylinders are same model and are the isodiametric oil hydraulic cylinder of last lower piston rod, then the active area of oil hydraulic cylinder upper oil cavitie and lower oil cavitie equates, therefore oil hydraulic cylinder is in course of action, the upper oil cavitie oil drain quantity always equals the oil-filled amount of lower oil cavitie, and then four oil hydraulic cylinder movement velocitys equate, promptly four oil hydraulic cylinders are carried out vertical motion synchronously simultaneously; As oil hydraulic cylinder G
1When rising to the terminal position of stroke, this moment, 3DT got electricly, and then four hydraulic cylinder works state exchanges be parallel connection, even oil hydraulic cylinder G
2, G
3, G
4In uphill process because of the sealing problem draining, at oil hydraulic cylinder G
1Can't rise to the terminal position of stroke when rising to the terminal position of stroke, because of four oil hydraulic cylinders lower oil cavitie under state in parallel charges into hydraulic oil simultaneously, therefore can guarantee that every oil hydraulic cylinder finally all moves to the terminal position of stroke separately, thereby adjust the sync bit of four oil hydraulic cylinders; When 2DT gets electricly, 3DT must not when electricity, and according to above-mentioned principle, four oil hydraulic cylinders are in series connection, and four oil hydraulic cylinders can descend simultaneously synchronously, as oil hydraulic cylinder G
4Drop to stroke play the position time, this moment, 3DT got electricly, then four hydraulic cylinder works state exchanges be parallel connection, guarantee that every oil hydraulic cylinder all moves to the initial position of stroke, thereby have adjusted the sync bit of four oil hydraulic cylinders.In each cycle of motion, oil hydraulic cylinder can both obtain the adjustment of sync bit, thereby has avoided the accumulation of the synchronization error that produces because of leakage, has guaranteed that synchronization accuracy can be controlled at desirable scope.
Second embodiment: design based on making five oil hydraulic cylinders realize the series and parallel conversion, according to valve seat of describing in the aforementioned techniques scheme (1) and spool (2), specific design is: valve seat (1) has oil pocket A
1, B
1, A
2, B
2, A
3, B
3, A
4, B
4, A
5, B
5Totally ten roads, spool (2) has oil groove A
1', B
1', A
2', B
2', A
3', B
3', A
4', B
4', A
5', B
5' totally ten roads and oil groove B
1", A
2", B
2", A
3", B
3", A
4", B
4", A
5" totally eight roads.Valve seat (1) and spool (2) cooperate left valve gap (4), right valve gap (3), pilot reversing valve (5) and relevant Sealing, connecting screw, spring etc. to constitute complete series and parallel changing valve V
2, it controls five oil hydraulic cylinder G
1, G
2, G
3, G
4, G
5The principle that realizes the series and parallel conversion and synchronize them is with first embodiment.
The 3rd embodiment: design based on making three oil hydraulic motors realize the series and parallel conversion, according to valve seat of describing in the aforementioned techniques scheme (1) and spool (2), specific design is: valve seat (1) has oil pocket A
1, B
1, A
2, B
2, A
3, B
3Totally six roads, spool (2) has oil groove A
1', B
1', A
2', B
2', A
3', B
3' totally six roads and oil groove B
1", A
2", B
2", A
3" totally four roads.Valve seat (1) and spool (2) cooperate left valve gap (4), right valve gap (3), pilot reversing valve (5) and relevant Sealing, connecting screw, spring etc. to constitute complete series and parallel changing valve V
2, it controls three oil hydraulic motor M
1, M
2, M
3The principle that realizes the series and parallel conversion is with first embodiment, if oil hydraulic motor M
1, M
2, M
3The geometry discharge capacity equate that then they will realize rotating synchronously, and if oil hydraulic motor M
1, M
2, M
3The geometry discharge capacity unequal, then their kinematic relation is an interlock, rotating speed keeps certain ratio.
Claims (4)
1. one kind can make a plurality of hydraulic actuator working staties realize series connection and the hydrovalve of freely changing in parallel, comprise valve seat (1) and be matched with in valve seat (1) through hole and can be along the axially movable spool of through hole (2), it is characterized in that:, can realize and the interior oil pocket A of valve seat (1) by the position of conversion spool (2) in valve seat (1)
1, B
1, A
2, B
2, A
3, B
3, A
4, B
4... many oil hydraulic cylinders that link to each other or the annexation of other hydraulic actuator are connected and conversion in parallel.
2. valve seat as claimed in claim 1 (1) is characterized in that: valve seat (1) has a through hole and axially is distributed in the interior oil pocket A of through hole in pairs in proper order
1, B
1, A
2, B
2, A
3, B
3, A
4, B
4... and draw the outer surface of oil through separately to valve seat (1), be used for directly or indirectly connecting hydraulic actuator.
3. spool as claimed in claim 1 (2) is characterized in that: axially be distributed with A on spool (2) cylndrical surface in pairs in proper order
1, B
1', A
2', B
2', A
3', B
3', A
4', B
4' ... wait oil groove or oilhole, and A
1', A
2', A
3', A
4' ... interconnect B
1', B
2', B
3', B
4' ... interconnect; Spool (2) is gone up and is also had B simultaneously
1", A
2", B
2", A
3", B
3", A
4" ... wait oil groove or oilhole axially to intert and be distributed in B
1', A
2', B
2', A
3', B
3', A
4', B
4' ... wait between oil groove or oilhole, and oil groove or oilhole B
1" and A
2", B
2" and A
3", B
3" and A
4" ... be communicated with respectively.
4. as described spool of claim 1 to 3 (2) and valve seat (1), it is characterized in that: when spool (2) is positioned at a wherein end of valve seat (1), the oil pocket A on the valve seat (1)
1, A
2, A
3, A
4... by corresponding respectively with it oil groove or the oilhole A that is communicated with on the spool (2)
1', A
2', A
3', A
4' ... interconnect the oil pocket B on the valve seat (1)
1, B
2, B
3, B
4... by corresponding respectively with it oil groove or the oilhole B that is communicated with on the spool (2)
1', B
2', B
3', B
4' ... interconnect; And when spool (2) is positioned at the other end of valve seat (1), the first road oil pocket A at the two ends, the left and right sides on the valve seat (1) then
1And B
4Do not communicated the oil pocket B on the valve seat (1) by the sealing of the cylndrical surface on the spool (2) respectively with any oil pocket
1And A
2, B
2And A
3, B
3And A
4... by the oil groove or the oilhole B of spool (2)
1" and A
2", B
2" and A
3", B
3" and A
4" ... be communicated with respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910246045 CN101839265B (en) | 2009-03-18 | 2009-11-19 | Series and parallel conversion hydraulic valve |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920052821 | 2009-03-18 | ||
| CN200920052821.4 | 2009-03-18 | ||
| CN 200910246045 CN101839265B (en) | 2009-03-18 | 2009-11-19 | Series and parallel conversion hydraulic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101839265A true CN101839265A (en) | 2010-09-22 |
| CN101839265B CN101839265B (en) | 2013-06-05 |
Family
ID=42742859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910246045 Expired - Fee Related CN101839265B (en) | 2009-03-18 | 2009-11-19 | Series and parallel conversion hydraulic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101839265B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022392A (en) * | 2010-12-08 | 2011-04-20 | 江苏扬力数控机床有限公司 | Four-cylinder synchronous hydraulic system |
| EP2752547A3 (en) * | 2013-01-02 | 2016-05-18 | Reinhold Schulte | Fluidic control circuit for two doors of a bus |
| CN107725516A (en) * | 2017-08-30 | 2018-02-23 | 美通重工有限公司 | Aerial work platform walking driving hydraulic system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2050750A5 (en) * | 1969-06-24 | 1971-04-02 | Trans Indent Ets | Rotary hydraulic control valve esp - suited to injection moulding |
| JPH03278206A (en) * | 1990-03-28 | 1991-12-09 | Mitsubishi Electric Corp | Electromagnetic flow rate control device |
| CN2090449U (en) * | 1990-09-29 | 1991-12-11 | 吴寿根 | Multicylinder speed synchronizing valve |
| CN2345810Y (en) * | 1998-10-16 | 1999-10-27 | 沈阳东电动力调节保护技术研究所 | Precision throttle valve |
| CN1204344C (en) * | 2002-11-21 | 2005-06-01 | 浙江大学 | Parallel valve port type pressure reduction valve |
| CN201162852Y (en) * | 2008-01-28 | 2008-12-10 | 洪玉龙 | Hydraulic reverse valve capable of series connection |
| CN201621124U (en) * | 2009-11-19 | 2010-11-03 | 卢志刚 | Serial-to-parallel conversion hydraulic valve |
-
2009
- 2009-11-19 CN CN 200910246045 patent/CN101839265B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022392A (en) * | 2010-12-08 | 2011-04-20 | 江苏扬力数控机床有限公司 | Four-cylinder synchronous hydraulic system |
| EP2752547A3 (en) * | 2013-01-02 | 2016-05-18 | Reinhold Schulte | Fluidic control circuit for two doors of a bus |
| CN107725516A (en) * | 2017-08-30 | 2018-02-23 | 美通重工有限公司 | Aerial work platform walking driving hydraulic system |
| CN107725516B (en) * | 2017-08-30 | 2021-04-20 | 美通重工有限公司 | Walking driving hydraulic system of aerial work platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101839265B (en) | 2013-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100546775C (en) | Dual drive four-freedom space parallel mechanism | |
| CN201621124U (en) | Serial-to-parallel conversion hydraulic valve | |
| CN101839265B (en) | Series and parallel conversion hydraulic valve | |
| CN102116326A (en) | Hydraulic push-pull synchronization method and device thereof | |
| CN102619805B (en) | Hydraulic cylinder suitable for controlling plurality of hydraulic cylinders to extend sequentially | |
| CN103334973A (en) | Synchronizing system for multiple hydraulic cylinders and control method for synchronizing system for multiple hydraulic cylinders | |
| CN101865169A (en) | Synchronous drive control system and engineering machinery | |
| CN203905959U (en) | Initiative hinge control system of rectangular shield | |
| CN107339278A (en) | A kind of automatic reciprocating hydraulic cylinder of stroke controllable type | |
| CN102838042B (en) | Crane and double-telescopic-cylinder independent control hydraulic system thereof | |
| CN206173822U (en) | Under wear existing circuit box and contain synchronous top and enter system | |
| CN201096115Y (en) | Hydraulic combined valve | |
| CN207111584U (en) | A kind of automatic reciprocating hydraulic cylinder of stroke controllable type | |
| CN203335520U (en) | Hydraulic cylinder with oil hole sets formed in cylinder barrel side wall | |
| CN206268150U (en) | A kind of motion platform driven based on duopoly void column plug airdraulic actuator | |
| CN103047209B (en) | Travel proportional control valve and travel proportional control device | |
| CN209903240U (en) | Bidirectional integrated cylinder | |
| CN207080447U (en) | Synchronous hydraulic corrects system | |
| CN103341650A (en) | Linear multi-actuator processing device | |
| CN102287418B (en) | Hydraulic cylinder control device capable of realizing accurate half-way stoppage | |
| CN202071175U (en) | Multi-cylinder synchronization device and hydraulic moulding equipment provided with device | |
| CN203488477U (en) | Second-level synchronous hydraulic cylinder | |
| CN201246361Y (en) | Closed-loop controlled high precision digital type synchronous valve | |
| CN210565413U (en) | Hydraulic synchronous control system of four-way shuttle | |
| CN203623015U (en) | Double hydraulic cylinder synchronous control system of gantry hydraulic press |
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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171016 Address after: 528305, No. 1, No. four, No. 1, Xinghe Road, Tianhe Industrial District, Ronggui District, Shunde District, Foshan, Guangdong Patentee after: FOSHAN QIAOYE SERVO SYSTEM TECHNOLOGY Co.,Ltd. Address before: 528300 Guangdong province Foshan city Shunde District Daliang street at Honggang road Ambassy court two 2 No. 502 the first known period Patentee before: Lu Zhigang |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528305, No. 1, No. four, No. 1, Xinghe Road, Tianhe Industrial District, Ronggui District, Shunde District, Foshan, Guangdong Patentee after: FOSHAN QIAOFAN ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Address before: 528305, No. 1, No. four, No. 1, Xinghe Road, Tianhe Industrial District, Ronggui District, Shunde District, Foshan, Guangdong Patentee before: FOSHAN QIAOYE SERVO SYSTEM TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201203 Address after: 226682 Industrial Park, Baidian Town, Haian City, Nantong, Jiangsu Patentee after: JIANGSU ZISHI MACHINERY MANUFACTURE Co.,Ltd. Address before: 528305, No. 1, No. four, No. 1, Xinghe Road, Tianhe Industrial District, Ronggui District, Shunde District, Foshan, Guangdong Patentee before: FOSHAN QIAOFAN ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Lu Zhigang Document name: Notice of conformity |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 |