CN102635661B - Hydraulic buffer - Google Patents
Hydraulic buffer Download PDFInfo
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- CN102635661B CN102635661B CN201210079009.7A CN201210079009A CN102635661B CN 102635661 B CN102635661 B CN 102635661B CN 201210079009 A CN201210079009 A CN 201210079009A CN 102635661 B CN102635661 B CN 102635661B
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- piston
- plug
- cylinder body
- depression bar
- hole
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- 239000003921 oil Substances 0.000 claims abstract description 61
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 10
- 230000033228 biological regulation Effects 0.000 claims description 31
- 230000003139 buffering effect Effects 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000006071 cream Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 description 8
- 238000011105 stabilization Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The invention discloses a hydraulic buffer, which comprises a cylinder, a front plug, a rear plug, a piston, piston rod components and restoring springs. The front plug is arranged at one end of the cylinder and the rear plug is arranged at the other end of the cylinder. The piston can reciprocate inside the cylinder. The piston rod components are fixed on the piston. The restoring springs are sleeved on the piston rod components and connected to the rear plug and the piston in a butt joint mode. A chamber clamped by the front plug and the rear plug serves as an oil storing chamber and is filled with hydraulic oil. A sliding hole is arranged in the center of the front plug. The piston arranged between the front plug and the rear plug divides the oil storing chamber into a front chamber and a rear chamber. The piston rod components can slide in the sliding hole in the front plug and have the middle ends fixed on the piston. Reflowing holes which are located outside the piston rod components are arranged on the piston, and a one-way valve is arranged in each reflowing hole. An oil transmission pipeline used for connecting the front chamber with the rear chamber is arranged on the piston rod components. The hydraulic buffer is reasonable and compact in structure, simple in processing technology, stable and reliable in performance, and a manufacturing cost is lowered effectively.
Description
Technical field
The invention belongs to damping device technical field, be specifically related to a kind of hydraulic bjuffer.
Background technique
Hydraulic bjuffer needs a step processing for automatic drilling machine, machined into, milling machine processing etc., and a stepping stabilized speed is advanced in each mechanism of work or machinery equipment and used.
At present, hydraulic bjuffer maximum problem in application is exactly shorter problem in working life, and because its reciprocating frequency is very high, parts depreciation is fast, general hydraulic bjuffer will leakage of oil in using less than year, has had a strong impact on the working life of hydraulic bjuffer.
For addressing the above problem, Chinese patent CN201696294U discloses a kind of speed stabilization machine, it comprises axle, outer tube, axle is positioned at outer tube, and outside one end protruded tube of axle, the other end joining with axle in outward appearance is provided with inner tube, axle is arranged with oil sac outside the one end near inner tube, oil sac is the bag-shaped of an annular, and the opening end of oil sac is arranged in inner tube and axle, between axle and inner tube, is provided with piston; This speed stabilization machine can regulate from speed stabilizing between 0.25-300kg, but speed stabilization machine uses oil sac as Sealing, owing to there is no oil storage tank, repeatedly uses after this speed stabilization machine, and fluid can be from the outer wall of oil sac and inwall infiltration, and sealing is variation gradually; In addition, comparatively serious to piston wear in this speed stabilization machine using process, after the time of one end, the bearing pressure of this speed stabilization machine reduces.Meanwhile, this speed stabilization machine complex structure, manufacture and assembly cost are higher.
Chinese patent CN200978848Y discloses a kind of hydraulic speed regulator, it comprises outer shell, inner casing and is arranged in described outer shell and the piston rod of described outer shell is stretched out in one end, in described inner casing, be provided with the piston contacting with described piston rod, between described piston and upper end cap, be provided with oil sealing and Returnning spring, to realize steady feeding and the sealing of piston rod.But in actual application, the sealing effect of this speed stabilization machine is poor, after application a period of time, there is certain infiltration the position that fluid coordinates with upper end cap from piston rod.
Summary of the invention
The object of this invention is to provide a kind of structure comparatively rationally, the comparatively reliable and stable hydraulic bjuffer of performance.
The technological scheme that realizes the object of the invention is: a kind of hydraulic bjuffer, comprises cylinder body, is arranged on the front plug of cylinder body one end, the rear plug that is arranged on the cylinder body the other end, the piston that can move back and forth in cylinder body, is fixed on the piston rod assembly on piston and is set in the Returnning spring on plug and piston on piston rod assembly and after being connected to; In described cylinder body by the cavity of described front plug and rear plug clamping as shoe cream room, be wherein filled with hydraulic oil; Described front plug center is provided with slide opening; Described piston is arranged between front plug and rear plug, and shoe cream room is separated into ante-chamber and back cavity; Described piston rod assembly can slide in the slide opening of front plug, and its middle-end is fixed on piston; Described piston is provided with the return port that is positioned at piston rod assembly outside, is provided with an one-way valve in each return port; Described piston rod assembly is provided with the oil transportation channel for being communicated with ante-chamber and back cavity.
In such scheme, described piston rod assembly comprises depression bar and positioning rod; The outboard end of described depression bar exposes cylinder body, and medial extremity through stretching into cylinder body after front plug and piston, is provided with oil transportation hole along central axial direction on its medial extremity end wall successively, and the depression bar body of rod is provided with the buffering oil outlet being communicated with described oil transportation hole; Described positioning rod is spirally connected and is fixed on the medial extremity of depression bar, and piston is compressed and is fixed on depression bar, and the described positioning rod body of rod is provided with the buffering oil inlet hole being communicated with described oil transportation hole; The gentle oilhole separation piston both sides of going out of described buffering oil inlet hole, described buffering oil inlet hole, oil transportation hole be gentle to be gone out oilhole and is combined to form described oil transportation channel.
In such scheme, also comprise a pressure regulation bar; In described depression bar oil transportation hole, be provided with the pressure regulating cavity of a truncated cone; On the side end wall of described positioning rod away from front plug, be provided with along central axial direction the regulator hole being communicated with depression bar oil transportation hole; Described pressure regulation club shaft is provided with truncated cone pressure-regulating portion, described pressure regulation bar is threaded connection mode and screws in the regulator hole of positioning rod, and move past in journey revolving, drive its pressure-regulating portion to move in the pressure regulating cavity of depression bar, and in moving process, change the gap between pressure-regulating portion outer wall and pressure regulating cavity inwall.
In such scheme, in the cylinder body of described pressure regulation bar between piston and rear plug.
In such scheme, described rear plug is provided with slide opening, and the outboard end of described pressure regulation bar stretches out cylinder body towards the direction away from depression bar, and can in the slide opening of rear plug, slide, and the medial extremity of described pressure regulation bar is threaded connection in the regulator hole that mode screws in positioning rod.
In such scheme, the outboard end that described pressure regulation bar stretches out cylinder body is provided with and bears part.
In such scheme, described pressure-regulating portion is positioned at pressure regulation bar and stretches into the medial extremity of cylinder body, and described pressure regulating cavity is located at one end away from front plug, depression bar oil transportation hole.
In such scheme, in described each return port, be provided with valve seat orifice, described each one-way valve comprises for the steel ball of shutoff valve seat orifice and is used to steel ball that the return springs of reseting elasticity is provided; Described return springs is arranged on the side of steel ball away from front plug.
The present invention has positive effect: structure is comparatively rationally compact, and process for machining and manufacturing is comparatively simplified, stable and reliable for performance, effectively reduces manufacture cost.
Brief description of the drawings
Fig. 1 is a kind of sectional structure schematic diagram of the first structure of the present invention;
Fig. 2 is a kind of sectional structure schematic diagram of the second structure of the present invention;
Fig. 3 is a kind of sectional structure schematic diagram of the third structure of the present invention.
Shown in accompanying drawing, be labeled as: cylinder body 1, front plug 2, rear plug 3, piston 4, return port 41, valve seat orifice 411, piston rod assembly 5, oil transportation channel 51, depression bar 52, oil transportation hole 521, buffering oil outlet 522, pressure regulating cavity 523, positioning rod 53, buffering oil inlet hole 531, regulator hole 532, internal threaded regions 533, Returnning spring 6, shoe cream room 7, ante-chamber 71, back cavity 72, one-way valve 8, steel ball 81, return springs 82, pressure regulation bar 9, pressure-regulating portion 91, outside thread district 92, bears part 94.
Embodiment
(embodiment 1)
Fig. 1 is a kind of sectional structure schematic diagram of the first structure of the present invention, has shown the first embodiment of the present invention.
The present embodiment is a kind of hydraulic bjuffer, as shown in Figure 1, comprise cylinder body 1, be arranged on the front plug 2 of cylinder body 1 one end, the rear plug 3 that is arranged on cylinder body 1 the other end, the piston 4 that can move back and forth in cylinder body 1, be fixed on the piston rod assembly 5 on piston 4 and be set in the Returnning spring 6 on plug 3 and piston 4 on piston rod assembly 5 and after being connected to; Described cylinder body 1 interior by the cavity of described front plug 2 and 3 clampings of rear plug as shoe cream room 7, be wherein filled with hydraulic oil; Described front plug 2 centers are provided with slide opening; Described piston 4 is arranged between front plug 2 and rear plug 3, and shoe cream room 7 is separated into ante-chamber 71 and back cavity 72; Described piston rod assembly 5 can slide in the slide opening of front plug 2, and its middle-end is fixed on piston 4; Described piston 4 is provided with the return port 41 that is positioned at piston rod assembly 5 outsides, is provided with an one-way valve 8 in each return port 41; Described piston rod assembly 5 is provided with the oil transportation channel 51 for being communicated with ante-chamber 71 and back cavity 72.
Piston rod assembly 5 in the present embodiment comprises depression bar 52 and positioning rod 53; The outboard end of described depression bar 52 exposes cylinder body 1, medial extremity is successively through stretching into cylinder body 1 after front plug 2 and piston 4, on its medial extremity end wall, be provided with oil transportation hole 521 along central axial direction, depression bar 52 bodies of rod are provided with the buffering oil outlet 522 being communicated with described oil transportation hole 521; Described positioning rod 53 is spirally connected and is fixed on the medial extremity of depression bar 52, and piston 4 is compressed and is fixed on depression bar 52, and described positioning rod 53 bodies of rod are provided with the buffering oil inlet hole 531 being communicated with described oil transportation hole 521; Described buffering oil inlet hole 531 is gentle goes out oilhole 522 piston 4 both sides of living apart, and described buffering oil inlet hole 531, oil transportation hole 521 be gentle to be gone out oilhole 522 and be combined to form described oil transportation channel 51.
In described each return port 41, be provided with valve seat orifice 411, described each one-way valve 8 comprises for the steel ball 81 of shutoff valve seat orifice 411 and is used to steel ball 81 that the return springs 82 of reseting elasticity is provided; Described return springs 82 is arranged on the side of steel ball 81 away from front plug 2, to when when depression bar 52 pressurized indentation cylinder body 1, prevent that between piston 4 and front plug 2, the hydraulic oil in ante-chamber 71 flow in the back cavity 72 between piston 4 and rear plug.
The working principle of the present embodiment is as follows:
But depression bar 52 is stressed during towards cylinder body 1 inner indentation, drive piston 4 to move towards the direction that approaches rear plug 3, now one-way valve 8 stops up the return port on piston 4 41, then the hydraulic oil between plug 3 and piston 4 is because being subject to the extruding of piston 4, buffering oil inlet hole 531 from piston rod assembly 5 bodies of rod is entered to oil transportation hole 521, buffering oil outlet 522 from piston rod assembly 5 bodies of rod flows out in the ante-chamber 71 between piston 4 and front plug 2 again, by the pore size of default oil transportation channel 51, thereby control hydraulic oil flow to the speed of ante-chamber 71 from back cavity 72, thereby avoid the too fast movement of piston rod assembly 5, and then play and cushion and speed stabilizing effect.
After the external force that depression bar 52 is subject to is cancelled or is reduced to a certain degree, piston 4 and piston rod assembly 5 reset under the reseting elasticity of Returnning spring 6, now, because the elastic force of Returnning spring 6 is much larger than the elastic force of return springs 82 in one-way valve 8, thereby can open check valve 8, make its steel ball 81 no longer block the valve seat orifice 411 in return port 41, hydraulic oil between piston 4 and front plug 2 in ante-chamber 71 mainly from return port 41 flow to piston 4 and in back cavity 72 between plug 3, also there is the buffering oil outlet 522 of sub-fraction hydraulic oil from piston rod assembly 5 bodies of rod to flow into oil transportation hole 521, again through buffering oil inlet hole 531 flow to piston 4 and after in back cavity 72 between plug 3.
The present embodiment structure is comparatively rationally compact, and process for machining and manufacturing is comparatively simplified, stable and reliable for performance, effectively reduces manufacture cost.
(embodiment 2)
Fig. 2 is a kind of sectional structure schematic diagram of the second structure of the present invention, has shown the second embodiment of the present invention.
The present embodiment is substantially the same manner as Example 1, and difference is: as shown in Figure 2, the present embodiment also comprises a pressure regulation bar 9; In described depression bar 52 oil transportation holes 521, be provided with the pressure regulating cavity 523 of a truncated cone; Described positioning rod 53 is away from being provided with along central axial direction the regulator hole 532 being communicated with depression bar 52 oil transportation holes 521 on a side end wall of front plug 2; Described pressure regulation bar 9 bodies of rod are provided with truncated cone pressure-regulating portion 91, described pressure regulation bar 9 is threaded connection mode and screws in the regulator hole 532 of positioning rod 53, and move past in journey revolving, drive its pressure-regulating portion 91 to move in the pressure regulating cavity 523 of depression bar 52, and in moving process, change the gap between pressure-regulating portion 91 outer walls and pressure regulating cavity 523 inwalls.Specifically, in the present embodiment, pressure regulation bar 9 is provided with outside thread district 92, in positioning rod 53 regulator holes 532, is provided with the internal threaded regions 533 of matching with depression bar outside thread district 92.Prevent that in order further to improve hydraulic oil from flowing backwards, and is also provided with O-ring seal 100 between pressure regulation bar 9 outer walls and regulator hole 532 inwalls.
In the cylinder body 1 of described pressure regulation bar 9 between piston 4 and rear plug 3, described pressure-regulating portion 91 is positioned at pressure regulation bar 9 and stretches into the medial extremity of cylinder body 1, and described pressure regulating cavity 523 is located at one end away from front plug 2, depression bar 52 oil transportation holes 521.
The present embodiment can regulate the gap between pressure-regulating portion 91 outer walls and pressure regulating cavity 523 inwalls by turn pressure regulation bar 9, thereby obtains different bufferings and speed stabilizing effect.The present embodiment is to regulate in advance behind the position of pressure regulation bar 9, reinstalls in cylinder body 1.
(embodiment 3)
Fig. 3 is a kind of sectional structure schematic diagram of the third structure of the present invention, has shown the third embodiment of the present invention.
The present embodiment is substantially the same manner as Example 2, difference is: as shown in Figure 3, described rear plug 3 is provided with slide opening, the outboard end of described pressure regulation bar 9 is towards stretching out cylinder body 1 away from the direction of depression bar 52, and can in the slide opening of rear plug 3, slide, the medial extremity of described pressure regulation bar 9 is threaded connection in the regulator hole 532 that mode screws in positioning rod 53.The outboard end that described pressure regulation bar 9 stretches out cylinder body 1 is provided with and bears part 94.
The present embodiment in use, both can pressure-bearing, can bear again, under certain occasion, adopted rational mounting type, can effectively reduce complete machine and take up space; In addition, the pressure regulation bar in the present embodiment stretches out cylinder body, can first assemble after entirety, then turn pressure regulation bar mediates to obtain the buffering and the speed stabilizing effect that need.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all mode of executions.And these belong to apparent variation or the variation that connotation of the present invention extends out and still belong to protection scope of the present invention.
Claims (6)
1. a hydraulic bjuffer, comprises cylinder body (1), is arranged on the front plug (2) of cylinder body (1) one end, the rear plug (3) that is arranged on cylinder body (1) the other end, the piston (4) that can move back and forth in cylinder body (1), is fixed on the piston rod assembly (5) on piston (4) and is set in piston rod assembly (5) and go up and be connected to the Returnning spring (6) on rear plug (3) and piston (4); In described cylinder body (1) by the cavity of described front plug (2) and rear plug (3) clamping as shoe cream room (7), be wherein filled with hydraulic oil; Described front plug (2) center is provided with slide opening; Described piston (4) is arranged between front plug (2) and rear plug (3), and shoe cream room (7) is separated into ante-chamber (71) and back cavity (72); Described piston rod assembly (5) can slide in the slide opening of front plug (2), and its middle-end is fixed on piston (4); It is characterized in that:
Also comprise a pressure regulation bar (9); Described piston (4) is provided with the return port (41) that is positioned at piston rod assembly (5) outside, is provided with an one-way valve (8) in each return port (41); Described piston rod assembly (5) is provided with the oil transportation channel (51) for being communicated with ante-chamber (71) and back cavity (72); Described piston rod assembly (5) comprises depression bar (52) and positioning rod (53); The outboard end of described depression bar (52) exposes cylinder body (1), medial extremity is successively through stretching into cylinder body (1) after front plug (2) and piston (4), on its medial extremity end wall, be provided with oil transportation hole (521) along central axial direction, depression bar (52) body of rod is provided with the buffering oil outlet (522) being communicated with described oil transportation hole (521); Described positioning rod (53) is spirally connected and is fixed on the medial extremity of depression bar (52), and piston (4) is compressed and is fixed on depression bar (52) above, described positioning rod (53) body of rod is provided with the buffering oil inlet hole (531) being communicated with described oil transportation hole (521); Gentle oilhole (522) separation piston (4) both sides of going out of described buffering oil inlet hole (531), described buffering oil inlet hole (531), oil transportation hole (521) be gentle to be gone out oilhole (522) and is combined to form described oil transportation channel (51); In described depression bar (52) oil transportation hole (521), be provided with the pressure regulating cavity (523) of a truncated cone; Described positioning rod (53) is away from being provided with along central axial direction the regulator hole (532) being communicated with depression bar (52) oil transportation hole (521) on a side end wall of front plug (2); Described pressure regulation bar (9) body of rod is provided with truncated cone pressure-regulating portion (91), described pressure regulation bar (9) mode of being threaded connection screws in the regulator hole (532) of positioning rod (53), and move past in journey revolving, drive its pressure-regulating portion (91) mobile in the pressure regulating cavity (523) of depression bar (52), and in moving process, change the gap between pressure-regulating portion (91) outer wall and pressure regulating cavity (523) inwall.
2. hydraulic bjuffer according to claim 1, is characterized in that: described pressure regulation bar (9) is arranged in the cylinder body (1) between piston (4) and rear plug (3).
3. hydraulic bjuffer according to claim 1, it is characterized in that: described rear plug (3) is provided with slide opening, the outboard end of described pressure regulation bar (9) is towards stretching out cylinder body (1) away from the direction of depression bar (52), and can in the slide opening of rear plug (3), slide, the medial extremity of described pressure regulation bar (9) is threaded connection in the regulator hole (532) that mode screws in positioning rod (53).
4. hydraulic bjuffer according to claim 1, is characterized in that: the outboard end that described pressure regulation bar (9) stretches out cylinder body (1) is provided with and bears part (94).
5. according to the hydraulic bjuffer one of claim 1 to 4 Suo Shu, it is characterized in that: described pressure-regulating portion (91) is positioned at pressure regulation bar (9) and stretches into the medial extremity of cylinder body (1), and described pressure regulating cavity (523) is located at one end away from front plug (2), depression bar (52) oil transportation hole (521).
6. according to the hydraulic bjuffer one of claim 1 to 4 Suo Shu, it is characterized in that: in described each return port (41), be provided with valve seat orifice (411), described each one-way valve (8) comprises for the steel ball (81) of shutoff valve seat orifice (411) and is used to steel ball (81) that the return springs (82) of reseting elasticity is provided; Described return springs (82) is arranged on the side of steel ball (81) away from front plug (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210079009.7A CN102635661B (en) | 2012-03-23 | 2012-03-23 | Hydraulic buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210079009.7A CN102635661B (en) | 2012-03-23 | 2012-03-23 | Hydraulic buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102635661A CN102635661A (en) | 2012-08-15 |
| CN102635661B true CN102635661B (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210079009.7A Active CN102635661B (en) | 2012-03-23 | 2012-03-23 | Hydraulic buffer |
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| Country | Link |
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| CN (1) | CN102635661B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840717B (en) * | 2016-05-18 | 2017-11-14 | 宁波盛达阳光自动化科技有限公司 | A kind of hydraulic positioner |
| CN110480078A (en) * | 2019-09-27 | 2019-11-22 | 杭州丰源铜业有限公司 | A kind of double milling machinery processing apparatus of copper joint of pressure gage pneumatic type double-pole |
| CN111003360A (en) * | 2019-12-25 | 2020-04-14 | 武汉福地科技有限公司 | Automatic protection device of photoelectric equipment |
| CN112890886B (en) * | 2021-02-25 | 2022-06-28 | 仇建成 | Wireless endoscopic surgery system |
| CN115045945B (en) * | 2022-05-11 | 2023-12-05 | 北京电子工程总体研究所 | Hydraulic buffer device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10207471B4 (en) * | 2002-02-21 | 2005-09-08 | Thyssenkrupp Bilstein Gmbh | Hydraulic vibration damper |
| CN2725623Y (en) * | 2004-09-09 | 2005-09-14 | 陆杰 | Internal set gas bag variable damp rear shock absorber |
| CN201041214Y (en) * | 2007-06-07 | 2008-03-26 | 杭州蒙力汽车减振器制造有限公司 | Bidirectionally adjustable armchair seat absorber |
| CN201401476Y (en) * | 2009-03-05 | 2010-02-10 | 浙江中兴减震器制造有限公司 | Variable throttle valve of vibration absorber |
| CN202579788U (en) * | 2012-03-23 | 2012-12-05 | 施亨庆 | Hydraulic buffer |
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2012
- 2012-03-23 CN CN201210079009.7A patent/CN102635661B/en active Active
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| CN102635661A (en) | 2012-08-15 |
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Effective date of registration: 20171220 Address after: 6 417A room, building No. 1188, west two ring road, Shengze Town, Wujiang District, Jiangsu, Suzhou, 215228 Patentee after: Suzhou hair textile Co., Ltd. Address before: Yueqing City, Zhejiang province 325612 Yan Dang Zhen Jing Di Shi Cun Patentee before: Shi Hengqing |
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Effective date of registration: 20181214 Address after: 215200 No. 1188 west two ring road, Shengze Town, Wujiang District, Suzhou, Jiangsu. Patentee after: Suzhou Shengze science and Technology Pioneer Park Development Co., Ltd. Address before: 215228 417A, 6 building, 1188 west two ring road, Shengze Town, Wujiang District, Suzhou, Jiangsu. Patentee before: Suzhou hair textile Co., Ltd. |
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| TR01 | Transfer of patent right |