CN103912035B - The connecting shaft mounting and dismounting method of a kind of excavator and digging tool and assembling and disassembling device - Google Patents

The connecting shaft mounting and dismounting method of a kind of excavator and digging tool and assembling and disassembling device Download PDF

Info

Publication number
CN103912035B
CN103912035B CN201310505835.8A CN201310505835A CN103912035B CN 103912035 B CN103912035 B CN 103912035B CN 201310505835 A CN201310505835 A CN 201310505835A CN 103912035 B CN103912035 B CN 103912035B
Authority
CN
China
Prior art keywords
connecting shaft
digging tool
excavator
axis hole
driving gear
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
Application number
CN201310505835.8A
Other languages
Chinese (zh)
Other versions
CN103912035A (en
Inventor
程鹤峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201310505835.8A priority Critical patent/CN103912035B/en
Publication of CN103912035A publication Critical patent/CN103912035A/en
Application granted granted Critical
Publication of CN103912035B publication Critical patent/CN103912035B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

The invention discloses the connecting shaft mounting and dismounting method of a kind of excavator and digging tool and assembling and disassembling device, the present invention installs a driving gear in advance by the axis hole of each installation connecting shaft of digging tool, and the tooth bar that can be engaged with driving gear is produced on connecting shaft, so when being connected on the forearm of excavator digging tool by connecting shaft, connecting shaft can be made to inject step by step in digging tool and the axis hole of small arm of digger by rotational driving gear, digging tool is connected on small arm of digger;When needing connecting shaft is pulled down from the forearm of the digging tool linking together and excavator, only need rotational driving gear in the opposite direction, you can so that connecting shaft is exited from the axis hole of digging tool and the forearm of excavator.The present invention not only have be convenient to mount and dismount, laborsaving, efficiently advantage, but also have the advantages that structure is simple, processing ease, low manufacture cost can effectively extend the service life of whole excavating equipment.

Description

The connecting shaft mounting and dismounting method of a kind of excavator and digging tool and assembling and disassembling device
Technical field
The present invention relates to the connecting shaft mounting and dismounting method of a kind of excavator and digging tool and assembling and disassembling device, belong to excavator auxiliary Help technical field of tools.
Background technology
At present, in the prior art, when needing the bucket using on excavator, quartering hammer, hydraulic shear or hydraulic tongs etc. When digging tool is connected with the forearm of excavator, commonly used artificial mode by connecting shaft insertion be arranged on digging tool and In axis hole on small arm of digger, digging tool and the forearm of excavator is made to link together, this employing manual type insertion The method that connecting shaft is attached not only has that workman's amount of labour is big, install very inconvenient, ineffective problem, and Also there is the problem being difficult to change digging tool and easily damage machine when changing digging tool.Particularly in one kind After digging tool uses the long period, when another kind of digging tool is changed on the forearm of excavator, due to life-time service When the reason exposed to the sun and rain, the nut in its connecting shaft can produce certain getting rusty, at this moment by small arm of digger When digging tool takes off, the nut that gets rusty in connecting shaft first must be beaten using the instrument that beats and loosen and take off by operator Afterwards, then with beaing after the axis hole that connecting shaft is tapped on axle bed hole and small arm of digger on digging tool by instrument, could incite somebody to action This digging tool takes off, and then could change another kind of digging tool, and when changing, ability by the way of beaing again Connecting shaft is beaten in axis hole, this by the way of beaing installation or removal, not only the damage to machine is very big, but also The problems such as existing that the amount of labour is big, waste time and energy, assembling and disassembling that efficiency is low, easily causing the service life of equipment and shorten.Therefore, existing Excavator very undesirable with the connected mode of digging tool.
Content of the invention
The purpose of the present invention is:One kind is provided to be convenient to mount and dismount, laborsaving, quick and structure is simple, processing ease, be fabricated to The connecting shaft mounting and dismounting method of this relatively low excavator and digging tool and assembling and disassembling device, to overcome the deficiencies in the prior art.
The present invention is realized in:A kind of excavator of the present invention with the connecting shaft mounting and dismounting method of digging tool is, When digging tool is connected on the forearm of excavator by connecting shaft, in advance in the axle of each installation connecting shaft of digging tool One driving gear is all installed by hole, and the tooth bar that can be engaged with driving gear is produced on connecting shaft, so will excavate When instrument is connected on the forearm of excavator by connecting shaft, you can first digging tool is placed on by the forearm of excavator, and make By the axis hole of digging tool near the axis hole of small arm of digger, then the axis hole into digging tool is first inserted in the front end of connecting shaft In, and so that the tooth bar in connecting shaft is engaged with driving gear, then so that connecting shaft is injected step by step by rotational driving gear and dig Inject again after the axis hole of pick instrument one end in the axis hole of small arm of digger, when the front end of connecting shaft passes through the digging tool other end After axis hole, you can digging tool is connected to the installation completing connecting shaft on small arm of digger;When needing connecting shaft from connection When pulling down on digging tool together and the forearm of excavator, only need rotational driving gear in the opposite direction, so Connecting shaft is made to exit from the axis hole of digging tool and the forearm of excavator by the driving of driving gear, thus by digging tool Pull down from the forearm of excavator with connecting shaft.
Above-mentioned in rotational driving gear, can be driven by impersonal force or carry out rotational driving gear by way of manual, it is non- Manpower type of drive is to drive driving gear to rotate by the way of motor transmission or hydraulic motor transmission, and its manual mode is Manually carry out rotational driving gear by way of using swinging handle.
According to a kind of excavator of the present invention that said method builds with the connecting shaft assembling and disassembling device of digging tool it is:This dress Put including the connecting shaft for being connected digging tool with small arm of digger, tooth bar is provided with connecting shaft, connecting shaft is contained in use In the axis hole of the mounting seat being arranged in digging tool casing, equipped with the drive that can engage with the tooth bar of connecting shaft in mounting seat Moving gear.
Grafting set for being connected with the axis hole in digging tool casing is provided with above-mentioned mounting seat, in digging tool machine It is provided with the support sleeve for supporting connecting shaft in another axis hole of corresponding installation grafting set axis hole on shell.
It is provided with circular cone guide end and lead, the diameter of lead and connection shaft diameter phase in the front end of above-mentioned connecting shaft Same, it is provided with locating piece in the rear end of connecting shaft, and the positioning lock that can be threadeded with mounting seat is provided with locating piece Fixing bolt.
The casing of above-mentioned mounting seat and digging tool is all respectively equipped with bullport, in the bullport of mounting seat respectively Equipped with push rod, it is cased with clamping sleeve in the front end of the grafting set of mounting seat, equipped with for pushing and withstanding pressure in the bullport of digging tool The T-shaped push rod of tight set, equipped with return spring on T-shaped push rod, is designed with for promoting T-shaped push rod in the front end of each push rod Stage clip.
Above-mentioned support sleeve and the axis hole tight fit of digging tool, are cased with bushing on the inner of support sleeve.
Above-mentioned clamping sleeve and two corresponding faces of bushing are designed with lead-in chamfered.
Above-mentioned digging tool is for being connected to the bucket use on small arm of digger, quartering hammer, hydraulic shear or hydraulic pressure Pincers etc..
It is defeated that above-mentioned driving gear is fixed on the power being connected with artificial crank handle, motor or driving device for hydraulic motor Enter on axle, one end of power input shaft is supported in the gear shaft holes of mounting seat, and the other end of power input shaft is supported on gear On axle sleeve and stretch out the outside of gear bush, gear bush is bolted in mounting seat.
Due to employing technique scheme, the present invention directly install by the axis hole of connecting shaft by each in digging tool One driving gear is installed, and the tooth bar that can be engaged with driving gear is produced on connecting shaft, so can be driven by rotation Moving gear is convenient and easily injects connecting shaft in digging tool and the axis hole of small arm of digger, makes digging tool and excavator Forearm link together;When needing to pull down it from the forearm of digging tool and excavator, only need in the opposite direction Rotational driving gear, you can relaxedly and rapidly make connecting shaft exit from the axis hole of digging tool and the forearm of excavator, thus Digging tool and connecting shaft are pulled down from the forearm of excavator.Can not only be effectively prevented from connecting shaft is beaten using the present invention Disadvantage, and the work efficiency of assembly and disassembly can also be greatly improved.So, compared with prior art, the present invention not only has the present invention Be convenient to mount and dismount, laborsaving, efficiently advantage, but also have that structure is simple, processing ease, low manufacture cost can effectively prolong The advantages of service life of long whole excavating equipment.
Brief description
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the A-A cross section structure diagram of Fig. 1;
Fig. 3 is arranged on digging tool (digging tool of in figure is quartering hammer) little with excavator for assembly of the invention Arm connects structural representation when using.
Description of reference numerals:1- connecting shaft, 1.1- tooth bar, 1.2- lead, 1.3- locating piece, 2- driving gear, 3- pacifies Dress seat, 3.1- grafting set, 4- support sleeve, 5- push rod, 6- stage clip, 7-T shape push rod, 8- clamping sleeve, 9- return spring, 10- is fixed Position lock bolt, 11- bushing, 12- lead-in chamfered, 13- power input shaft, 14- gear bush, 15- digging tool, 16- excavates Machine forearm.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is made further specifically.
Embodiments of the invention:A kind of excavator of the present invention can be directly existing with the connecting shaft mounting and dismounting method of digging tool Some digging tools are implemented, and as shown in figures 1 and 3, during enforcement, existing digging tool are being connected to by connecting shaft When on the forearm of excavator, by the axis hole of each installation connecting shaft of digging tool, a driving gear is installed in advance, and The tooth bar that can be engaged with driving gear is produced on connecting shaft, so digging tool is being connected to excavator by connecting shaft Forearm on when, you can first digging tool is placed on by the forearm of excavator, and makes the axis hole of digging tool near excavator The axis hole of forearm, then first inserts the front end of connecting shaft in the axis hole of digging tool, and makes the tooth bar in connecting shaft and drive Moving gear engages, and then so that connecting shaft is injected after injecting the axis hole of digging tool one end step by step by rotational driving gear again and digs In the axis hole of pick machine forearm, after the front end of connecting shaft passes through the axis hole of the digging tool other end, you can digging tool is connected The installation of connecting shaft is completed on small arm of digger;When needing connecting shaft from the digging tool linking together and excavator When pulling down on forearm, only need rotational driving gear in the opposite direction, so connecting shaft can be made by the driving of driving gear Exit from the axis hole of digging tool and the forearm of excavator, thus digging tool and connecting shaft are torn open from the forearm of excavator Under.When rotational driving gear, can be driven by impersonal force or carry out rotational driving gear by way of manual, its impersonal force driving side Formula is to drive driving gear to rotate by the way of motor transmission or hydraulic motor transmission, and its manual mode is artificial by adopting With the mode of swinging handle come rotational driving gear.
A kind of structure of the connecting shaft assembling and disassembling device of the excavator of the present invention being built according to said method and digging tool As shown in Figure 1-Figure 3, this device includes the connection for being connected existing digging tool 15 with small arm of digger 16 to schematic diagram Axle 1, its digging tool 15 is of the prior art for being connected to the bucket use on small arm of digger 16, quartering hammer, hydraulic pressure Cut or hydraulic tongs;During enforcement, connecting shaft 1 directly produces tooth bar 1.1, and so that connecting shaft 1 is contained in and dig for being arranged on In the axis hole of mounting seat 3 in pick instrument 15 casing, mounting seat 3 is installed one simultaneously and can nibble with the tooth bar 1.1 of connecting shaft 1 The driving gear 2 closed, driving gear 2 is fixed on can be with traditional artificial crank handle, motor driver or hydraulic motor On the power input shaft 13 that driving means connect, so that one end of power input shaft 13 is supported in the gear shaft holes of mounting seat 3, move The other end of power input shaft 13 is supported on gear bush 14 and stretches out the outside of gear bush 14, and gear bush 14 is passed through It is bolted to (as shown in Figure 2) in mounting seat 3, so in rotational driving gear 2, can pass through traditional crank handle or pull After the instruments such as handss are connected with power input shaft 13, crank handle or spanner are shaken by manpower and drives driving gear 2 to rotate, also can be by The conventional motor driver being provided with reducing gear or driving device for hydraulic motor are connected with power input shaft 13, so Driving gear 2 is driven to rotate by motor driver or driving device for hydraulic motor;In order that mounting seat 3 can be firmly attached On digging tool, a grafting set for being connected with the axis hole in digging tool 15 casing can be produced on mounting seat 3 3.1, and enable grafting cover 3.1 with digging tool 15 casing on axis hole tight fit, simultaneously casing in digging tool 15 relatively Ying Yu is provided with another axis hole of grafting set 3.1 axis holes and installs a support sleeve 4 for supporting connecting shaft 1, in order to Make connection relatively reliable, after mounting seat 3 and support sleeve 4 are arranged in the casing of digging tool 15, also can adopt weldering again The mode connecing is welded in casing;During making, in order to easy to install and use, the front end of connecting shaft 1 can be fabricated to circle Cone guide end, and its front end make one section long about 10~80 millimeters of long leads 1.2, make this lead 1.2 diameter and The diameter of connecting shaft 1 is identical, and a locating piece 1.3 is fixed in the rear end in connecting shaft 1 simultaneously, and installs on locating piece 1.3 One positioning locking bolt 10 that can be threadeded with mounting seat 3, so when using, when being installed in place connecting shaft 1 Afterwards, lock bolt 10 is connected in the screw of mounting seat 3, operationally produces movement so as to be effectively prevented connecting shaft 1 Or rotate;In order to when using, digging tool 15 be made closely to be connected with small arm of digger 16, in mounting seat 3 and can excavate All make two bullports respectively in the casing of instrument 15, and fill a push rod 5 in the bullport of mounting seat 3 respectively, simultaneously In one clamping sleeve 8 of front end sleeve of the grafting set 3.1 of mounting seat 3, the bullport of digging tool 15 fills one respectively and is used for The T-shaped push rod 7 of pushing and withstanding clamping sleeve 8, fills a return spring 9 on each T-shaped push rod 7, and the front end in each push rod 5 Fill a stage clip 6 for promoting T-shaped push rod 7, so when using, after connecting shaft 1 moves into place, T-shaped push rod 7 is in guiding In the presence of push rod 5 and stage clip 6, it will closely overlay clamping sleeve 8 on small arm of digger 16;For the ease of by digger Tool 15 is attached with small arm of digger 16, will support sleeve 4 and digging tool 15 axis hole tight fit connection good after, can be One bushing 11 is covered on the inner of support sleeve 4 again, all makes respectively on clamping sleeve 8 and 11 two corresponding faces of bushing simultaneously Make a lead-in chamfered 12 (as shown in Figure 1).
When using the present invention, after connecting shaft 1 moves into place, then lock bolt 10 is passed through behind the hole of locating piece 1.3 It is connected in the screw of mounting seat 3, so connecting shaft 1 can be locked;When needing to pull down connecting shaft 1, only need to will lock Fixing bolt 10 unclamps after taking off, and at this moment can be driven in the mobile shaft outlet hole of connecting shaft 1 by driving gear 2, thus by connecting shaft 1 Pull down.

Claims (8)

1. a kind of excavator and digging tool connecting shaft mounting and dismounting method it is characterised in that:Digging tool is being passed through connecting shaft When being connected on the forearm of excavator, by the axis hole of each installation connecting shaft of digging tool, a sliding tooth is installed in advance Wheel, and the tooth bar that can be engaged with driving gear is produced on connecting shaft, so digging tool is being connected to by connecting shaft When on the forearm of excavator, you can first digging tool is placed on by the forearm of excavator, and make the axis hole of digging tool near digging Then the front end of connecting shaft is first inserted in the axis hole of digging tool by the axis hole of pick machine forearm, and make tooth bar in connecting shaft with Driving gear engages, and then so that connecting shaft is injected after injecting the axis hole of digging tool one end step by step again by rotational driving gear In the axis hole of small arm of digger, after the front end of connecting shaft passes through the axis hole of the digging tool other end, you can by digging tool even It is connected on the installation that connecting shaft is completed on small arm of digger;When needing connecting shaft from the digging tool linking together and excavator Forearm on when pulling down, only need rotational driving gear in the opposite direction, so connection can be made by the driving of driving gear Axle exits from the axis hole of digging tool and the forearm of excavator, thus by digging tool and connecting shaft from the forearm of excavator Pull down.
2. excavator according to claim 1 and digging tool connecting shaft mounting and dismounting method it is characterised in that:Drive rotating During moving gear, can be driven by impersonal force or carry out rotational driving gear by way of manual, its impersonal force type of drive is using electricity Driving driving gear to rotate, its manual mode is artificial by adopting swinging handle to the mode of machine transmission or hydraulic motor transmission Mode carry out rotational driving gear.
3. the connecting shaft assembling and disassembling device of a kind of excavator and digging tool, including for by digging tool(15)With small arm of digger (16)The connecting shaft connecting(1)It is characterised in that:In connecting shaft(1)It is provided with tooth bar(1.1), connecting shaft(1)It is contained in for pacifying It is contained in digging tool(15)Mounting seat in casing(3)Axis hole in, in mounting seat(3)In equipped with can and connecting shaft(1)Tooth Bar(1.1)The driving gear of engagement(2);In mounting seat(3)Be provided with for digging tool(15)Axis hole in casing connects Grafting set(3.1), in digging tool(15)In casing with grafting set is installed(3.1)Corresponding another axis hole of axis hole In be provided with for supporting connecting shaft(1)Support sleeve(4);Described digging tool(15)It is for being connected to small arm of digger (16)The bucket of upper use, quartering hammer, hydraulic shear or hydraulic tongs.
4. excavator according to claim 3 and digging tool connecting shaft assembling and disassembling device it is characterised in that:In connecting shaft (1)Front end be provided with circular cone guide end and lead(1.2), lead(1.2)Diameter and connecting shaft(1)Diameter is identical, Connecting shaft(1)Rear end be provided with locating piece(1.3), and in locating piece(1.3)It is provided with energy and mounting seat(3)Carry out screw thread even The positioning locking bolt connecing(10).
5. excavator according to claim 4 and digging tool connecting shaft assembling and disassembling device it is characterised in that:In mounting seat (3)And digging tool(15)Casing on be all respectively equipped with bullport, in mounting seat(3)Bullport in be respectively provided with push rod (5), in mounting seat(3)Grafting set(3.1)Front end be cased with clamping sleeve(8), in digging tool(15)Bullport in equipped with For pushing and withstanding clamping sleeve(8)T-shaped push rod(7), in T-shaped push rod(7)On equipped with return spring(9), in each push rod(5)Before End is designed with for promoting T-shaped push rod(7)Stage clip(6).
6. excavator according to claim 5 and digging tool connecting shaft assembling and disassembling device it is characterised in that:Support sleeve (4)With digging tool(15)Axis hole tight fit, in support sleeve(4)The inner on be cased with bushing(11).
7. excavator according to claim 6 and digging tool connecting shaft assembling and disassembling device it is characterised in that:In clamping sleeve (8)With bushing(11)It is designed with lead-in chamfered on two corresponding faces(12).
8. excavator according to claim 3 and digging tool connecting shaft assembling and disassembling device it is characterised in that:Driving gear (2)It is fixed on the power input shaft being connected with artificial crank handle, motor or driving device for hydraulic motor(13)On, power is defeated Enter axle(13)One end be supported on mounting seat(3)Gear shaft holes in, power input shaft(13)The other end be supported on gear shaft Set(14)Go up and stretch out gear bush(14)Outside, gear bush(14)It is bolted on mounting seat(3)On.
CN201310505835.8A 2013-10-24 2013-10-24 The connecting shaft mounting and dismounting method of a kind of excavator and digging tool and assembling and disassembling device Expired - Fee Related CN103912035B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310505835.8A CN103912035B (en) 2013-10-24 2013-10-24 The connecting shaft mounting and dismounting method of a kind of excavator and digging tool and assembling and disassembling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310505835.8A CN103912035B (en) 2013-10-24 2013-10-24 The connecting shaft mounting and dismounting method of a kind of excavator and digging tool and assembling and disassembling device

Publications (2)

Publication Number Publication Date
CN103912035A CN103912035A (en) 2014-07-09
CN103912035B true CN103912035B (en) 2017-03-01

Family

ID=51038006

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310505835.8A Expired - Fee Related CN103912035B (en) 2013-10-24 2013-10-24 The connecting shaft mounting and dismounting method of a kind of excavator and digging tool and assembling and disassembling device

Country Status (1)

Country Link
CN (1) CN103912035B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102605814A (en) * 2012-04-24 2012-07-25 河北工业大学 Rotating mechanism for excavator working device
CN203042466U (en) * 2013-01-16 2013-07-10 钜程座垫有限公司 Fouling resistant paper automatic replacing device
CN203684310U (en) * 2013-10-24 2014-07-02 程鹤峰 Device for assembling and disassembling connecting shaft between excavator and excavating tool

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417401A1 (en) * 1994-05-18 1995-11-30 Thomas Dipl Ing Ostermeyer Equipment carrier
JP4081465B2 (en) * 2004-09-13 2008-04-23 新キャタピラー三菱株式会社 Attachment boss structure and assembly method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102605814A (en) * 2012-04-24 2012-07-25 河北工业大学 Rotating mechanism for excavator working device
CN203042466U (en) * 2013-01-16 2013-07-10 钜程座垫有限公司 Fouling resistant paper automatic replacing device
CN203684310U (en) * 2013-10-24 2014-07-02 程鹤峰 Device for assembling and disassembling connecting shaft between excavator and excavating tool

Also Published As

Publication number Publication date
CN103912035A (en) 2014-07-09

Similar Documents

Publication Publication Date Title
CN110439580A (en) Integrated micro development machine pushing tow system and its working method with screw drives
CN103912035B (en) The connecting shaft mounting and dismounting method of a kind of excavator and digging tool and assembling and disassembling device
CN203684310U (en) Device for assembling and disassembling connecting shaft between excavator and excavating tool
CN109004578A (en) A kind of power cable laying equipment and its laying method
CN219606394U (en) Bolt hole positioning flange cover
CN110306928A (en) A kind of multifunctional drill and the non-blasting construction method of hard rock tunnel
CN206602850U (en) A kind of cutting mechanism for bamboo shoots
CN212173251U (en) Energy-saving asphalt storage device for highway construction
CN208502678U (en) Drilling rod dredger for DCM ship
CN103290870A (en) Method and device for connecting excavating machine with excavating tool
CN109017907B (en) Stay wire manufacturing tool
CN213086896U (en) Mechanical arm with sliding groove type breaking hammer
CN204238278U (en) A kind of floating type driving assembling and disassembling device of excavating tools connecting axle
CN217442872U (en) Sampling device for gold mine investigation
CN216515826U (en) Culvert pull throughs based on hydraulic engineering
CN2771307Y (en) Knife-flywheel ditching machine
CN217294720U (en) Light guide wheel with small resistance
CN216437907U (en) Landscaping soil loosening device
CN201505893U (en) Replacer for valve of plunger pump
CN216491856U (en) Agricultural machinery engineering is with high-efficient device of digging
CN213653584U (en) High-strength detachable gear ring for excavator
CN214615434U (en) Pre-buried shutoff fixing device of concrete reinforcement
CN219952070U (en) Excavating mechanism for building construction
CN215406499U (en) Hydraulic pipeline dredger for septic tank
CN209930899U (en) Excavating device and excavator with excavating 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
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170301

Termination date: 20171024

CF01 Termination of patent right due to non-payment of annual fee