CN106837920A - A kind of hydraulic means with adjustable limiting mechanism - Google Patents
A kind of hydraulic means with adjustable limiting mechanism Download PDFInfo
- Publication number
- CN106837920A CN106837920A CN201710151954.6A CN201710151954A CN106837920A CN 106837920 A CN106837920 A CN 106837920A CN 201710151954 A CN201710151954 A CN 201710151954A CN 106837920 A CN106837920 A CN 106837920A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- stopper slot
- spacer pin
- hole
- stop collar
- 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
- 125000006850 spacer group Chemical group 0.000 claims abstract description 43
- 230000000694 effects Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/24—Other details, e.g. assembly with regulating devices for restricting the stroke
Abstract
The invention provides a kind of hydraulic means with adjustable limiting mechanism, belong to hydraulic cylinder field.It solves existing hydraulic cylinder and cannot avoid piston rod rotation, and cannot carry out spacing problem.This hydraulic means with adjustable limiting mechanism includes cylinder barrel and cylinder cap, cylinder cap is provided with telescopic hole, also include the piston rod stretched out from telescopic hole, piston rod bar wall is provided with stopper slot, and stopper slot closed at both ends, also include set stop collar on the piston rod, stop collar jacket wall is provided with internal thread spacing hole, also include the caging bolt being screwed onto on spacing hole, and caging bolt end is held out against in stopper slot, and stop collar is fixed with piston rod, cylinder barrel outer wall is fixed with some round shell-like guidees, cylinder barrel barrel is provided with the pin-and-hole with some guide aligning inners, also include that activity is embedded in the spacer pin in pin-and-hole, and spacer pin can be pushed or pull on, spacing pin end movable top is set to be separated in stopper slot or with stopper slot.This hydraulic means is avoided that piston rod rotation, and with adjustable limiting.
Description
Technical field
The invention belongs to hydraulic cylinder technical field, it is related to a kind of hydraulic means with adjustable limiting mechanism.
Background technology
Existing hydraulic cylinder by piston rod band piston moved reciprocatingly in cylinder barrel when, because piston rod is with cylinder cap
Rounded engagement structure, therefore piston rod can be caused around own axis, it is unfavorable for that some need the occasion of positioning, and some
Occasion needs to carry out spacing but traditional hydraulic cylinder to piston rod outreach to be inconvenient to be adjusted, it is therefore necessary to carry out
Improve.
The content of the invention
The purpose of the present invention is directed to the above-mentioned problems in the prior art, there is provided one kind is avoided that piston rod itself
Rotate, and the spacing hydraulic means with adjustable limiting mechanism can be carried out to piston rod.
The purpose of the present invention can be realized by following technical proposal：A kind of hydraulic means with adjustable limiting mechanism, bag
Include cylinder barrel and be fixed on the cylinder cap of cylinder barrel front end, cylinder cap is provided with telescopic hole, also including the piston rod stretched out from telescopic hole, it is special
Levy and be：Piston rod bar wall is provided with along the axially arranged fluting shape stopper slot of piston rod, and stopper slot closed at both ends, telescopic hole
It is the cavernous structure coordinated with piston rod section, also including covering stop collar on the piston rod, stop collar is located at the reverse cylinder of cylinder cap
Cylinder side, stop collar jacket wall is provided with internal thread spacing hole, also including the caging bolt being screwed onto on spacing hole, and caging bolt end
Portion is held out against in stopper slot, and stop collar is fixed with piston rod, and described cylinder barrel outer wall is fixed with some round shell-like guidees, cylinder
Cylinder barrel is provided with the pin-and-hole with some guide aligning inners, the spacer pin in pin-and-hole is also embedded in including activity, and can promote or draw
Dynamic spacer pin, makes spacing pin end movable top be separated in stopper slot or with stopper slot.
This hydraulic cylinder is coordinated using stopper slot and the telescopic hole that is engaged, it is to avoid piston rod around own axis, and
Can utilize on the caging bolt fixed piston rod bar wall in stop collar, be withstood in stopper slot using spacer pin, with to piston rod
Carry out it is spacing, and can conveniently regulation caging bolt position, and withstood in stopper slot by by different spacer pins, to carry out not
Same distance it is spacing.
In a kind of above-mentioned hydraulic means with adjustable limiting mechanism, back-up ring is fixed with described spacer pin, it is spacing
Pin rear end is fixed with internal thread interstage sleeve, and guide has external screw thread, also including the compression spring being enclosed within spacer pin, and compression spring
Two ends withstand on guide end and interstage sleeve bottom respectively, and promote back-up ring to be against in inner wall of cylinder, and now spacing pin end and limit
Position groove is separated, and can promote spacer pin, spacing pin end is withstood on stopper slot, and interstage sleeve is screwed onto on guide.
Therefore stability when spacer pin withstands on stopper slot or separated with stopper slot can be improved.
In a kind of above-mentioned hydraulic means with adjustable limiting mechanism, described pin-and-hole hole wall is provided with seal groove, and close
Sealing groove is embedded with sealing ring of the sealing shroud on spacer pin.
Sealing and anti-leakage is played using sealing ring to act on.
In a kind of above-mentioned hydraulic means with adjustable limiting mechanism, described stop collar cross section is C-shaped and spacing
Set front side has breach, and stop collar can be covered on the piston rod by breach, and described spacing hole is located at stop collar left side or right side
On jacket wall.
Therefore it is convenient to fix stop collar from piston rod optional position, it is to avoid by the load effect for connecting.
In a kind of above-mentioned hydraulic means with adjustable limiting mechanism, described piston rod is provided with graduation mark.
Therefore conveniently it is adjusted using graduation mark.
In a kind of above-mentioned hydraulic means with adjustable limiting mechanism, described stop collar to be formed for steel bushing cuts.
In a kind of above-mentioned hydraulic means with adjustable limiting mechanism, described some guidees are along piston rod to equidistant
Uniformly.
In a kind of above-mentioned hydraulic means with adjustable limiting mechanism, described spacer pin and back-up ring is structure as a whole,
And interstage sleeve is screwed onto spacer pin rear end.
Therefore repair and maintenance is conveniently carried out.
Compared with prior art, the invention has the advantages that：
This hydraulic cylinder is coordinated using stopper slot and the telescopic hole that is engaged, it is to avoid piston rod around own axis, and
Can utilize on the caging bolt fixed piston rod bar wall in stop collar, be withstood in stopper slot using spacer pin, with to piston rod
Carry out it is spacing, and can conveniently regulation caging bolt position, and withstood in stopper slot by by different spacer pins, to carry out not
Same distance it is spacing.
Brief description of the drawings
Fig. 1 is this hydraulic means partial sectional view.
Fig. 2 is piston rod and stop collar cooperation schematic diagram.
In figure,
1st, cylinder barrel；11st, cylinder cap；12nd, telescopic hole；
2nd, piston rod；21st, stopper slot；
3rd, stop collar；31st, spacing hole；32nd, caging bolt；
4th, guide；41st, pin-and-hole；42nd, spacer pin；43rd, back-up ring；44th, interstage sleeve；45th, compression spring；46th, sealing ring.
Specific embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As depicted in figs. 1 and 2, a kind of hydraulic means with adjustable limiting mechanism of the present invention, including cylinder barrel 1 and it is fixed on cylinder
The cylinder cap 11 of 1 front end of cylinder, cylinder cap 11 is provided with telescopic hole 12, also including the piston rod 2 stretched out from telescopic hole 12, the bar of piston rod 2
Wall is provided with along the axially arranged fluting shape stopper slot 21 of piston rod 2, and the closed at both ends of stopper slot 21, and telescopic hole 12 is and piston
The cavernous structure that the section of bar 2 coordinates, also including the stop collar 3 being enclosed within piston rod 2, stop collar 3 is located at the reverse cylinder barrel 1 of cylinder cap 11
Side, the jacket wall of stop collar 3 is provided with internal thread spacing hole 31, also including the caging bolt 32 being screwed onto on spacing hole 31 and spacing
The end of bolt 32 is held out against in stopper slot 21, and stop collar 3 is fixed with piston rod 2, and the outer wall of cylinder barrel 1 is fixed with some round shell-likes
Guide 4, the barrel of cylinder barrel 1 is provided with the pin-and-hole 41 with the aligning inner of some guidees 4, is also embedded in the spacer pin in pin-and-hole 41 including activity
42, and spacer pin 42 can be pushed or pull on, the end movable top of spacer pin 42 is separated in stopper slot 21 or with stopper slot 21.
Further, back-up ring 43 is fixed with spacer pin 42, the rear end of spacer pin 42 is fixed with internal thread interstage sleeve 44, guide 4
With external screw thread, also including the compression spring 45 being enclosed within spacer pin 42, and the two ends of compression spring 45 withstand on the end of guide 4 respectively
With the bottom of interstage sleeve 44, and back-up ring 43 is promoted to be against on the inwall of cylinder barrel 1, and now the end of spacer pin 42 separates with stopper slot 21, and
Spacer pin 42 can be promoted, the end of spacer pin 42 is withstood on stopper slot 21, and interstage sleeve 44 is screwed onto on guide 4.The hole of pin-and-hole 41
Wall is provided with seal groove, and seal groove is embedded with sealing ring 46 of the sealing shroud on spacer pin 42.The cross section of stop collar 3 is C-shaped, and
The front side of stop collar 3 has breach, and stop collar 3 can be enclosed within piston rod 2 by breach, spacing hole 31 be located at the left side of stop collar 3 or
On the jacket wall of right side.Piston rod 2 is provided with graduation mark.Stop collar 3 to be formed for steel bushing cuts.Some guidees 4 are along axial direction of piston rod 2 etc.
Away from uniform.Spacer pin 42 and back-up ring 43 are structure as a whole, and interstage sleeve 44 is screwed onto the rear end of spacer pin 42.
This hydraulic cylinder is coordinated using stopper slot 21 with the telescopic hole 12 being engaged, it is to avoid piston rod 2 turns around own axes
It is dynamic, and can utilize on the bar wall of 32 fixed piston rod of caging bolt 2 in stop collar 3, withstand on stopper slot 21 using spacer pin 42
It is interior, it is spacing to carry out to piston rod 2, and can conveniently regulation caging bolt 32 position, and pushed up by by different spacer pins 42
In stopper slot 21, to carry out the spacing of different distance.
Specific embodiment described herein is only to the spiritual explanation for example of the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from spirit of the invention or surmount scope defined in appended claims.
Although more having used cylinder barrel 1, cylinder cap 11, telescopic hole 12, piston rod 2, stopper slot 21, stop collar 3, limit herein
The arts such as position hole 31, caging bolt 32, guide 4, pin-and-hole 41, spacer pin 42, back-up ring 43, interstage sleeve 44, compression spring 45, sealing ring 46
Language, but it is not precluded from using the possibility of other terms.It is used for the purpose of more easily describing and explaining this using these terms
The essence of invention；Any additional limitation is construed as all to be disagreed with spirit of the present invention.
Claims (8)
1. a kind of hydraulic means with adjustable limiting mechanism, including cylinder barrel (1) and the cylinder cap (11) of cylinder barrel (1) front end is fixed on,
Cylinder cap (11) is provided with telescopic hole (12), the also piston rod (2) including being stretched out from telescopic hole (12), it is characterised in that：Piston rod
(2) bar wall is provided with along axially arranged fluting shape stopper slot (21) of piston rod (2), and stopper slot (21) closed at both ends, is stretched
Hole (12) is the cavernous structure coordinated with piston rod (2) section, also including the stop collar (3) being enclosed within piston rod (2), stop collar
(3) positioned at reverse cylinder barrel (1) side of cylinder cap (11), stop collar (3) jacket wall is provided with internal thread spacing hole (31), also including being screwed onto
Caging bolt (32) on spacing hole (31), and caging bolt (32) end held out against in the stopper slot (21), and make stop collar (3)
It is fixed with piston rod (2), described cylinder barrel (1) outer wall be fixed with some round shell-like guidees (4), cylinder barrel (1) if barrel be provided with
The pin-and-hole (41) of dry guide (4) aligning inner, is also embedded in the spacer pin (42) in pin-and-hole (41), and can promote or draw including activity
Dynamic spacer pin (42), makes spacer pin (42) end movable top be separated in stopper slot (21) or with stopper slot (21).
2. a kind of hydraulic means with adjustable limiting mechanism according to claim 1, it is characterised in that：Described spacer pin
(42) back-up ring (43) is fixed with, spacer pin (42) rear end is fixed with internal thread interstage sleeve (44), guide (4) is gone back with external screw thread
Including the compression spring (45) being enclosed within spacer pin (42), and compression spring (45) two ends withstand on guide (4) end and gear respectively
Set (44) bottom, and promote back-up ring (43) to be against on cylinder barrel (1) inwall, and now spacer pin (42) end and stopper slot (21) point
From, and spacer pin (42) can be promoted, spacer pin (42) end is withstood on stopper slot (21), and interstage sleeve (44) is screwed onto guide
(4) on.
3. a kind of hydraulic means with adjustable limiting mechanism according to claim 2, it is characterised in that：Described pin-and-hole
(41) hole wall is provided with seal groove, and seal groove is embedded with sealing ring (46) of the sealing shroud on spacer pin (42).
4. a kind of hydraulic means with adjustable limiting mechanism according to claim 3, it is characterised in that：Described stop collar
(3) cross section is C-shaped, and stop collar (3) front side has breach, and stop collar (3) can be enclosed within piston rod (2) by breach, institute
The spacing hole (31) stated is on stop collar (3) left side or right side jacket wall.
5. a kind of hydraulic means with adjustable limiting mechanism according to claim 3, it is characterised in that：Described piston rod
(2) it is provided with graduation mark.
6. a kind of hydraulic means with adjustable limiting mechanism according to claim 3, it is characterised in that：Described stop collar
(3) to be formed for steel bushing cuts.
7. a kind of hydraulic means with adjustable limiting mechanism according to claim 3, it is characterised in that：Described some pins
Set (4) is axially equidistant uniform along piston rod (2).
8. a kind of hydraulic means with adjustable limiting mechanism according to claim 3, it is characterised in that：Described spacer pin
(42) it is structure as a whole with back-up ring (43), and interstage sleeve (44) is screwed onto spacer pin (42) rear end.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151954.6A CN106837920B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with adjustable limiting mechanism |
| CN201810612177.5A CN108730259B (en) | 2017-03-15 | 2017-03-15 | Hydraulic device with adjustable limiting mechanism |
| CN201810640768.3A CN108757633B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with position-limit mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151954.6A CN106837920B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with adjustable limiting mechanism |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640768.3A Division CN108757633B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with position-limit mechanism |
| CN201810612177.5A Division CN108730259B (en) | 2017-03-15 | 2017-03-15 | Hydraulic device with adjustable limiting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106837920A true CN106837920A (en) | 2017-06-13 |
| CN106837920B CN106837920B (en) | 2018-09-25 |
Family
ID=59144703
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640768.3A Active CN108757633B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with position-limit mechanism |
| CN201710151954.6A Expired - Fee Related CN106837920B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with adjustable limiting mechanism |
| CN201810612177.5A Active CN108730259B (en) | 2017-03-15 | 2017-03-15 | Hydraulic device with adjustable limiting mechanism |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640768.3A Active CN108757633B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with position-limit mechanism |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810612177.5A Active CN108730259B (en) | 2017-03-15 | 2017-03-15 | Hydraulic device with adjustable limiting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN108757633B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108714338A (en) * | 2018-07-27 | 2018-10-30 | 新昌县营道科技有限公司 | A kind of adjustable clarifier filter device and its application method |
| CN109958492B (en) * | 2019-03-22 | 2024-04-23 | 东风商用车有限公司 | Adjustable engine brake actuating mechanism and application method thereof |
| CN111721666A (en) * | 2020-06-29 | 2020-09-29 | 山东省鲁南地质工程勘察院(山东省地勘局第二地质大队) | Coal mining subsidence crack area reconsitution soil moisture survey device |
| CN111997957B (en) * | 2020-07-31 | 2021-11-26 | 清华大学 | Hydraulic cylinder and control rod hydraulic drive system |
| CN112284815A (en) * | 2020-09-08 | 2021-01-29 | 中国水利水电科学研究院 | Large-capacity water sampler |
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| JPS60143104A (en) * | 1983-12-30 | 1985-07-29 | Kokusan Kinzoku Kogyo Co Ltd | Adjusting device of piston rod for caulking device and the like |
| GB2397344A (en) * | 2003-01-17 | 2004-07-21 | Gibbs Tech Ltd | Retractable suspension actuator locking |
| CN102221030A (en) * | 2011-06-17 | 2011-10-19 | 长沙中联重工科技发展股份有限公司 | Hydro-cylinder assembly with adjustable stroke and pin inserting and drawing mechanism of positioning device |
| CN205315385U (en) * | 2016-01-22 | 2016-06-15 | 枣庄市达源液压设备有限公司 | Simple and easy pneumatic cylinder |
| CN205503623U (en) * | 2016-04-12 | 2016-08-24 | 山东达睿智能设备股份有限公司 | Novel hydraulic pressure machinery |
| CN205559404U (en) * | 2016-04-12 | 2016-09-07 | 山东达睿智能设备股份有限公司 | High strength hydraulic pressure machinery |
| CN206801990U (en) * | 2017-03-15 | 2017-12-26 | 桐乡市乌镇润桐嘉业机械维修中心 | A kind of hydraulic means with adjustable limiting mechanism |
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| US4119017A (en) * | 1977-03-23 | 1978-10-10 | Phd, Inc. | Non-rotatable fluid power cylinder |
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| CN103851010B (en) * | 2012-12-06 | 2017-06-23 | 广东顺德普南气动科技有限公司 | Cylinder |
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- 2017-03-15 CN CN201810640768.3A patent/CN108757633B/en active Active
- 2017-03-15 CN CN201710151954.6A patent/CN106837920B/en not_active Expired - Fee Related
- 2017-03-15 CN CN201810612177.5A patent/CN108730259B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60143104A (en) * | 1983-12-30 | 1985-07-29 | Kokusan Kinzoku Kogyo Co Ltd | Adjusting device of piston rod for caulking device and the like |
| GB2397344A (en) * | 2003-01-17 | 2004-07-21 | Gibbs Tech Ltd | Retractable suspension actuator locking |
| CN102221030A (en) * | 2011-06-17 | 2011-10-19 | 长沙中联重工科技发展股份有限公司 | Hydro-cylinder assembly with adjustable stroke and pin inserting and drawing mechanism of positioning device |
| CN205315385U (en) * | 2016-01-22 | 2016-06-15 | 枣庄市达源液压设备有限公司 | Simple and easy pneumatic cylinder |
| CN205503623U (en) * | 2016-04-12 | 2016-08-24 | 山东达睿智能设备股份有限公司 | Novel hydraulic pressure machinery |
| CN205559404U (en) * | 2016-04-12 | 2016-09-07 | 山东达睿智能设备股份有限公司 | High strength hydraulic pressure machinery |
| CN206801990U (en) * | 2017-03-15 | 2017-12-26 | 桐乡市乌镇润桐嘉业机械维修中心 | A kind of hydraulic means with adjustable limiting mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108730259B (en) | 2020-05-01 |
| CN108757633A (en) | 2018-11-06 |
| CN106837920B (en) | 2018-09-25 |
| CN108757633B (en) | 2019-11-22 |
| CN108730259A (en) | 2018-11-02 |
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Effective date of registration: 20181224 Address after: 056000 Fengyue Highway in Fengfeng Mining Area, Handan City, Hebei Province, East Side of South Second Ring Intersection Patentee after: HANDAN CITY TONGJUNDA MINING EQUIPMENT CO.,LTD. Address before: 314501 No. 1, rear end Tai Village, Wuzhen Town, Tongxiang, Jiaxing, Zhejiang Patentee before: TONGXIANG WUZHEN RUNTONG JIAYE MACHINERY MAINTENANCE CENTER |
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| 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: 20180925 |