CN108861941A - Induction mechanism applied to elevator safety brake - Google Patents

Induction mechanism applied to elevator safety brake Download PDF

Info

Publication number
CN108861941A
CN108861941A CN201810741290.3A CN201810741290A CN108861941A CN 108861941 A CN108861941 A CN 108861941A CN 201810741290 A CN201810741290 A CN 201810741290A CN 108861941 A CN108861941 A CN 108861941A
Authority
CN
China
Prior art keywords
fan housing
cylindrical central
central sleeve
axis
interior aerofoil
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.)
Withdrawn
Application number
CN201810741290.3A
Other languages
Chinese (zh)
Inventor
朱文祥
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.)
Luan Yongzhen Jiangdao Electromechanical Technology Co Ltd
Original Assignee
Luan Yongzhen Jiangdao Electromechanical Technology Co Ltd
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 Luan Yongzhen Jiangdao Electromechanical Technology Co Ltd filed Critical Luan Yongzhen Jiangdao Electromechanical Technology Co Ltd
Priority to CN201810741290.3A priority Critical patent/CN108861941A/en
Publication of CN108861941A publication Critical patent/CN108861941A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044Mechanical overspeed governors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Braking Arrangements (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

The invention discloses the induction mechanisms for being applied to elevator safety brake, it includes fan housing, the driving lever being connect with fan housing wall portion, fan housing is the bowl body of opening straight down, cylindrical central sleeve is additionally provided in fan housing, cylindrical central sleeve is connected by the wall portion of connecting plate and fan housing, interval is formed with the air duct being connected with fan housing inner cavity between cylindrical central sleeve and the wall portion of fan housing, air duct switch is matched in cylindrical central sleeve, air duct switch includes the guide shaft for being socketed in cylindrical central sleeve and arranging with cylindrical central sleeve coaxial line, guide shaft is located at one end in fan housing and is equipped with interior aerofoil, the top of guide shaft is installed by restraining position ring block;The outside of guide shaft is also socketed with the reset spring between fan housing and interior aerofoil, and the interior cavity direction that reset spring pushes interior aerofoil towards fan housing moves;Interior aerofoil is that the upper wall portions of the bullet and interior aerofoil that Open Side Down and the inner wall part shape of fan housing are adapted;The axis of interior aerofoil is overlapped with the central axis of fan housing, and the axis of interior aerofoil is also overlapped with the axis of cylindrical central sleeve.

Description

Induction mechanism applied to elevator safety brake
The present invention be the applying date be on February 05th, 2017, application No. is:2017100647301, it is entitled " to be based on The divisional application of the patent of invention of the windage sensing apparatus of aerodynamic ".
Technical field
The present invention relates to a kind of windage sensing apparatus.
Background technique
Currently, well known elevator catching device mainly uses two ways to trigger, first, being felt by the way of weightless It answers, when elevator rapidly glides, mass is in state of weightlessness, to trigger;Another kind is felt using electronic induction equipment It answers, such as rate induction.
The present invention provides a kind of elevator catching device triggered using windage, the triggering for being different from existing catching device is former Reason.
Summary of the invention
The object of the present invention is to provide the windage induction type catching devices for being different from existing catching device trigger theory, work as elevator emergency Speed generates larger windage and the work using windage trigger mechanism when gliding, it is weightless that windage induction type catching device can solve solution The one-way problem of induction, and can solve the stability problem of electronic induction equipment.
To realize the above-mentioned technical purpose, the technical solution adopted in the present invention is as follows.
Induction mechanism applied to elevator safety brake comprising fan housing, the driving lever connecting with fan housing wall portion, fan housing are to open Mouth bowl body straight down is additionally provided with cylindrical central sleeve in fan housing, and cylindrical central sleeve is connected by the wall portion of connecting plate and fan housing, in Interval is formed with the air duct being connected with fan housing inner cavity between heart sleeve and the wall portion of fan housing, is matched with air duct in cylindrical central sleeve and opens It closes, air duct switch includes the guide shaft for being socketed in cylindrical central sleeve and arranging with cylindrical central sleeve coaxial line, and guide shaft is located in fan housing One end is equipped with interior aerofoil, and restraining position ring block is installed on the top of guide shaft;The outside of guide shaft is also socketed between fan housing and interior aerofoil Between reset spring, reset spring push in aerofoil towards fan housing interior cavity direction move;
Interior aerofoil is that the upper wall portions of the bullet and interior aerofoil that Open Side Down and the inner wall part shape of fan housing are adapted;
The axis of interior aerofoil is overlapped with the central axis of fan housing, and the axis of interior aerofoil is also overlapped with the axis of cylindrical central sleeve.
The axis of interior aerofoil is overlapped with the central axis of fan housing, and the axis of interior aerofoil is also overlapped with the axis of cylindrical central sleeve.
The windage sensing apparatus that the present invention designs is controlled using the windage that object generates during the motion, works as object Movement velocity is big, and the windage of generation is bigger, to be triggered through the invention, the present invention can be used as the triggering member of catching device Part provides the induction mode for being totally different from existing conventional catching device, and the present invention can be moved with application level, is vertical The quick induction in hypervelocity is realized in the induction of direction movement, banking motion etc..
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of windage induction mechanism.
Fig. 3 is the structural schematic diagram of windage induction mechanism.
Fig. 4 is the structural schematic diagram of windage induction mechanism.
Fig. 5 is the structural schematic diagram of air duct switch.
Fig. 6 is the structural schematic diagram that shell and interlinked mechanism, brake silpper cooperate.
Fig. 7 is the structural schematic diagram of shell and interlinked mechanism cooperation.
Fig. 8 is the structural schematic diagram of turntable.
Fig. 9 is the structural schematic diagram of interlinked mechanism and brake silpper cooperation.
Figure 10 is the structural schematic diagram of shell.
Figure 11 is the structural schematic diagram of shell.
Figure 12 is the structural schematic diagram of irreversible control.
It is denoted as in figure:
100, guide rail;
200, shell;210, guide rail guide groove;220, one-way locking guide groove;230, rotary table;240, guide groove is braked;250, braking guiding Column;260, limited block;
300, windage induction mechanism;310, fan housing;312, air duct;314, cylindrical central sleeve;316, connecting plate;320, driving lever;330, Air duct switch;332, guide shaft;334, reset spring;336, interior aerofoil;
400, interlinked mechanism;410, turntable;412, shaft;414, mounting groove;420, connecting rod;
500, brake silpper;
600, irreversible control;610, support plate;620, spring is jacked;630, latch.
Specific embodiment
Catching device of the invention is incuded using windage principle, and moving object is moved downward or moved upwards or inclines Tiltedly movement adapts to, and solves the problems, such as the one-way that existing weightless sense is answered, and since the mechanical structure that the present invention uses is more steady It is fixed, it is more reliable relative to electronic induction equipment.
As a shown in Figure 6, elevator catching device comprising the shell 200 being fixedly connected with lift car is set on shell 200 It is equipped with the guide rail guide groove 210 to match with guide rail 100, shell 200 is also connected with windage induction mechanism 300, installs on shell 200 There is an interlinked mechanism 400 to match with windage induction mechanism 300, shell 200 is gone back shiding matching and had to be connect simultaneously with interlinked mechanism 400 And the brake silpper 500 for braking.
As in Figure 2-4, windage induction mechanism 300 comprising fan housing 310, the driving lever 320 being connect with 310 wall portion of fan housing, Fan housing 310 is opening towards anti-fall direction or the bowl body of the direction of motion, is additionally provided with central axis and moving object in fan housing 310 The parallel cylindrical central sleeve 314 of the body direction of motion, cylindrical central sleeve 314 are connect by connecting plate 316 with the wall portion of fan housing 310, center Interval is formed with the air duct 312 being connected with 310 inner cavity of fan housing, cylindrical central sleeve 314 between sleeve 314 and the wall portion of fan housing 310 Inside be matched with air duct switch 330, air duct switch 330 include be socketed in cylindrical central sleeve and with 314 coaxial line cloth of cylindrical central sleeve The guide shaft 332 set, guide shaft 332 are located at one end in fan housing 310 and are equipped with interior aerofoil 336, and the top of guide shaft 332 is equipped with limit Ring, the stop collar are preferably circlip;The outside of guide shaft 332 is also socketed with the reset bullet between fan housing 310 and interior aerofoil 336 Spring 334, the interior cavity direction that reset spring 334 pushes interior aerofoil 336 towards fan housing 310 move.Existing elevator catching device is prevented Fall direction be straight down, therefore, the opening direction of fan housing 310 should be downward;When object moves in the horizontal direction or transports upwards When dynamic, to realize fast braking in an overspeed situation, the opening direction of fan housing 310 should be towards the direction of motion of object;Very Obviously, it can solve the problems, such as that existing catching device can only one-way brake using windage induction mechanism provided by the invention.
Under original state, reset spring 334 pushes interior fan housing 336 to be detached from fan housing inner wall, and air duct 312 and fan housing Inner cavity is connected;When fan housing 310 is slided with stabilized speed or safe speed, windage is less than the elastic force of reset spring 334, collection It is discharged in the air in fan housing 310 from air duct 312;When fan housing 310 is with high-speed motion or slides beyond safe speed, windage Greater than the elastic force of reset spring 334, at this time in aerofoil 336 be bonded with the inner wall part of fan housing 310, air duct 312 and fan housing inner cavity it Between channel blocked by interior aerofoil, combining in the air in fan housing cannot exclude out of air duct 312, under the action of windage, fan housing hair Raw deflection action.
For the stroke for reducing interior aerofoil 336, expands the influence of windage and improve induction precision, it is as in Figure 2-4, above-mentioned Reset spring 334 is socketed on the outside of guide shaft 332 and is socketed on the inside of cylindrical central sleeve 314, and one end of reset spring 334 is supported To the interior step of cylindrical central sleeve, the other end is against interior aerofoil 336;The shrinkage of reset spring 334 is reduced, interior aerofoil is shortened Spacing distance between 336 and fan housing 310.
For the influence for improving windage, as in Figure 2-4, interior aerofoil 336 is the bullet that Open Side Down and interior aerofoil 336 Upper wall portions and fan housing inner wall part shape be adapted;More perfectly, the central axis of the axis of interior aerofoil 336 and fan housing 310 Line is overlapped, and the axis of interior aerofoil 336 is also overlapped with the axis of cylindrical central sleeve.
As shown in Fig. 1,6,7, the other end of driving lever 320 is connected to interlinked mechanism 400, and interlinked mechanism 400 includes turntable 410, it is installed on the shaft 412 of turntable 410 and arrangement concentric with it, driving lever 320 is connect with shaft 410 and driving lever 320 Rotation can drive shaft 410 synchronous rotation, turntable 410 is installed on shell 200 and can be around own axis, turntable 410 Hinged with a pair of links 420 respectively, the line of the articulated position of a pair of links 420 and turntable passes through the central axis of turntable 410 And the two sides of turntable 410 are symmetrically arranged in, the suspension end of connecting rod 420 is articulated with brake silpper 500.
More perfectly, as shown in Fig. 8,10,11, the rotary table 230 connecting with turntable 410, turntable are provided on shell 200 It is provided with the mounting groove 414 with 230 arranged concentric of rotary table on 410, turntable 410 and 230 arranged concentric of rotary table and can be around itself Axis rotation.
As shown in Fig. 1,6,7,11, be provided on shell 200 it is a pair of perpendicular to guide rail guide groove 210 and with guide rail guide groove The 210 braking guide grooves 240 being connected, braking guide groove 240 are symmetrically arranged in the both ends of guide rail guide groove 210 and brake guide groove 240 Match with brake silpper 500, it is sliding along the direction perpendicular to guide rail guide groove 210 that braking guide groove 240 is used to be oriented to brake silpper 500 It is dynamic;Braking guide post 250 identical with braking 240 guide direction of guide groove, brake silpper 500 and system are additionally provided on shell 200 250 shiding matching of action-oriented column and braking is socketed in guide post 250 pushes brake silpper 500 to deviate guide rail guide groove 210 Spring.
Windage induction mechanism self weight under the influence of and be socketed on braking guide post 250 spring provide elastic effect Under, there is the risk being detached from from braking guide post 250 in brake silpper 500, to solve this technical problem, the present invention should be wrapped also The anti-detachment mechanism that limitation brake silpper 500 is detached from from braking guide post 250 is included, which can be to be set to system Action-oriented column 250 suspends the limited block at end, and anti-detachment mechanism can also be to be set to shell 200 and limit the rotation of driving lever 320 Limited block 260;Under original state, limited block 260 against driving lever 320 to limit the position of driving lever 320, to solve to brake The problem of sliding block 500 is detached from from braking guide post 250.
When Lift out of order and when carriage rapidly glides, the fan housing 310 of windage induction mechanism is occurred by windage effect Deflection, and drive the driving lever connecting with fan housing 310 that deflection clockwise, driving of the turntable 410 connecting with driving lever in driving lever occurs Under synchronize and deflect, since brake silpper 500 is connect by connecting rod 420 with turntable, turntable gives connecting rod in deflection process 420 towards guide rail guide groove 210 tractive force, to realize that connecting rod pulls brake silpper 500 towards guide rail guide groove movement, for enhancing Braking effect, brake silpper 500 utilize reticulate pattern to increase friction towards reticulate pattern is provided on the braking end face of guide rail guide groove one end Power improves braking effect.
Further to shorten the stroke of brake silpper 500 and improving the rational deployment of mechanism, the present invention provides more For perfect embodiment, as a shown in Figure 6, under original state, the line of a pair of of driving lever 320 and the articulated position of turntable 410 Across turntable 410 central axis and arranged along the guide direction of guide rail guide groove 210, setting is against driving lever 320 along shell 200 And limit the limited block 260 that driving lever 320 rotates counterclockwise.
When Lift out of order and when carriage rapidly glides, brake silpper 500 slided towards guide rail guide direction and It is contacted with guide rail surface, brake silpper 500 generates larger resistance to the pressure that guide rail surface applies and the resistance can force sedan-chair Compartment is slowed down and is perhaps stopped when car speed is reduced within the scope of safe speed or is stopped, and windage is smaller, in windage induction mechanism Effect of weight under and be socketed on braking guide post spring elastic effect under, windage induction mechanism will drive turntable 410 occur rotation counterclockwise, so that brake silpper 500 is detached from guide rail surface, at this point, lift car can occur rapidly again The phenomenon that downslide, this kind of situation exactly put brake phenomenon;To avoid a generation for brake phenomenon, the invention also includes be installed on shell 200 and the irreversible control 600 that is unidirectionally moved towards 210 direction of guide rail guide groove for controlling brake silpper 500, it is unidirectional to control Mechanism 600 processed can be used the already existing device for having identical function in the prior art and realize, such as ratchet mechanism.
As shown in Fig. 1,6,12, irreversible control 600 comprising be installed on the support plate 610 of shell 200, be set to The rack gear of brake silpper, the latch 630 for connecting with support plate 610 and matching with rack gear, support plate 610 and latch The jacking spring 620 for pushing latch 630 to move towards brake silpper direction is provided between 630, rack gear is along braking guide groove 240 Guide direction arrangement and rack gear on the tooth arranged be helical teeth, be provided on latch 630 and match with the helical teeth on rack gear Tooth, the tooth being set on latch matched with the helical teeth on rack gear realize brake silpper unidirectionally towards guide rail sliding chute direction transport It is dynamic.
More perfectly, as shown in Fig. 1,6,7,10, be provided on shell 200 along guide rail guide groove guide direction arrangement and With the one-way locking guide groove that is connected to of braking guide groove 240, one-way locking guide groove and latch shiding matching and led along one-way locking The guide direction of slot is slided, and support plate 610 is installed on the top of one-way locking guide groove.

Claims (2)

1. being applied to the induction mechanism of elevator safety brake, it is characterised in that:It includes fan housing, group connecting with fan housing wall portion Bar, fan housing are opening bowl body straight down, are additionally provided with cylindrical central sleeve in fan housing, and cylindrical central sleeve passes through connecting plate and fan housing Wall portion connection, is spaced between cylindrical central sleeve and the wall portion of fan housing and is formed with the air duct being connected with fan housing inner cavity, in cylindrical central sleeve It is matched with air duct switch, air duct switch includes the guide shaft for being socketed in cylindrical central sleeve and arranging with cylindrical central sleeve coaxial line, is led Axle position is equipped with interior aerofoil in one end in fan housing, and restraining position ring block is installed on the top of guide shaft;The outside of guide shaft be also socketed between Reset spring between fan housing and interior aerofoil, the interior cavity direction that reset spring pushes interior aerofoil towards fan housing move;
Interior aerofoil is that the upper wall portions of the bullet and interior aerofoil that Open Side Down and the inner wall part shape of fan housing are adapted;
The axis of interior aerofoil is overlapped with the central axis of fan housing, and the axis of interior aerofoil is also overlapped with the axis of cylindrical central sleeve.
2. the induction mechanism according to claim 1 applied to elevator safety brake, it is characterised in that:The axis of interior aerofoil It is overlapped with the central axis of fan housing, the axis of interior aerofoil is also overlapped with the axis of cylindrical central sleeve.
CN201810741290.3A 2017-02-05 2017-02-05 Induction mechanism applied to elevator safety brake Withdrawn CN108861941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810741290.3A CN108861941A (en) 2017-02-05 2017-02-05 Induction mechanism applied to elevator safety brake

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810741290.3A CN108861941A (en) 2017-02-05 2017-02-05 Induction mechanism applied to elevator safety brake
CN201710064730.1A CN106744139B (en) 2017-02-05 2017-02-05 Windage sensing apparatus based on aerodynamic

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201710064730.1A Division CN106744139B (en) 2017-02-05 2017-02-05 Windage sensing apparatus based on aerodynamic

Publications (1)

Publication Number Publication Date
CN108861941A true CN108861941A (en) 2018-11-23

Family

ID=58955169

Family Applications (4)

Application Number Title Priority Date Filing Date
CN201710064730.1A Expired - Fee Related CN106744139B (en) 2017-02-05 2017-02-05 Windage sensing apparatus based on aerodynamic
CN201810741275.9A Withdrawn CN108861943A (en) 2017-02-05 2017-02-05 Windage induction type elevator safety brake controller
CN201810741290.3A Withdrawn CN108861941A (en) 2017-02-05 2017-02-05 Induction mechanism applied to elevator safety brake
CN201810741289.0A Withdrawn CN108750862A (en) 2017-02-05 2017-02-05 Windage induction type catching device for elevator safety brake

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CN201710064730.1A Expired - Fee Related CN106744139B (en) 2017-02-05 2017-02-05 Windage sensing apparatus based on aerodynamic
CN201810741275.9A Withdrawn CN108861943A (en) 2017-02-05 2017-02-05 Windage induction type elevator safety brake controller

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201810741289.0A Withdrawn CN108750862A (en) 2017-02-05 2017-02-05 Windage induction type catching device for elevator safety brake

Country Status (1)

Country Link
CN (4) CN106744139B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109292580B (en) * 2018-11-21 2024-05-10 广州广日电梯工业有限公司 Wind-pressure type adjustable speed limiter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08310762A (en) * 1995-05-16 1996-11-26 Mitsubishi Denki Bill Techno Service Kk Battery charging device
JPH09132362A (en) * 1995-11-09 1997-05-20 Hitachi Building Syst Co Ltd Device for confirming operation of buffer
US7311179B1 (en) * 2004-01-20 2007-12-25 Franklin Samuel H Elevator dampening system
CN103258462A (en) * 2013-05-13 2013-08-21 冉玉楠 Wind-speed wind-direction measuring instrument
CN104444691B (en) * 2013-09-24 2017-07-28 上海新力动力设备研究所 Used during elevator falling buffer unit
CN204096802U (en) * 2014-07-31 2015-01-14 苏州汉森华纳节能科技有限公司 Elevator governor

Also Published As

Publication number Publication date
CN106744139B (en) 2018-12-21
CN108750862A (en) 2018-11-06
CN108861943A (en) 2018-11-23
CN106744139A (en) 2017-05-31

Similar Documents

Publication Publication Date Title
JP5026743B2 (en) Progressive safety device
AU2014350381B2 (en) Safety brake for an elevator
EP2687474B1 (en) Mechanism for detecting overspeed in lifting apparatuses, overspeed prevention safety actuation device and lifting apparatus
US8950554B2 (en) Elevator governor
CN109017495B (en) Movable and telescopic handrail frame for public transport and subway
CN106586761B (en) Based on hydromechanical braking control system
CN106029544B (en) Lift appliance
CN106698140B (en) Elevator catching device
CN106744139B (en) Windage sensing apparatus based on aerodynamic
CN108584603B (en) Elevator overspeed protecting device
CN206417749U (en) Elevator catching device
US20190127180A1 (en) Governor assembly and elevator system
CN107000986A (en) Lift facility with the safety device for elevator car systems
CN205953297U (en) Asynchronous door sword of elevator of integrated sedan -chair lock
CN214652827U (en) Weightless lifting device
CN106672198A (en) Sliding-lifting type cabin door
CN107848751A (en) Elevator safety caliper
CN214344405U (en) Safety seat for amusement equipment
CN209853517U (en) Elevator safety tongs and elevator
CN110404271A (en) A kind of anti-down demagnetization brake apparatus of trigger-type
CN206417750U (en) Based on hydromechanical braking control system
CN206359083U (en) Machine room elevator is clamped with double friction safeties
CN114655809A (en) Weightless lifting device
CN109775507A (en) Elevator, overspeed protection system and its trigger device
KR100881503B1 (en) Speed governor device of elevator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20181123

WW01 Invention patent application withdrawn after publication