CN202297050U - Leveling device for working platform of railway contact net overhead line work vehicle - Google Patents

Leveling device for working platform of railway contact net overhead line work vehicle Download PDF

Info

Publication number
CN202297050U
CN202297050U CN2011202878436U CN201120287843U CN202297050U CN 202297050 U CN202297050 U CN 202297050U CN 2011202878436 U CN2011202878436 U CN 2011202878436U CN 201120287843 U CN201120287843 U CN 201120287843U CN 202297050 U CN202297050 U CN 202297050U
Authority
CN
China
Prior art keywords
leveling
seat
job platform
valve
check valve
Prior art date
Application number
CN2011202878436U
Other languages
Chinese (zh)
Inventor
张斌
赵力
惠莉花
王新虎
吴艳萍
李艳妮
Original Assignee
宝鸡南车时代工程机械有限公司
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 宝鸡南车时代工程机械有限公司 filed Critical 宝鸡南车时代工程机械有限公司
Priority to CN2011202878436U priority Critical patent/CN202297050U/en
Application granted granted Critical
Publication of CN202297050U publication Critical patent/CN202297050U/en

Links

Abstract

The utility model provides a leveling device for a working platform of a railway contact net overhead line work vehicle, which comprises a leveling mechanism, a leveling hydraulic system and a leveling electric control system. The leveling mechanism comprises front seat beams, rear seat beams and a lifting rotation working platform base, wherein the front seat beams and the rear seat beams are respectively fixedly connected with a vehicle frame; two sides on the front end of the lifting rotation working platform base are connected with the front seat beams through front rotating shafts; two sides on the rear end of the lifting rotation working platform base are connected with the rear seat beams through rear rotating shafts; the lifting rotation working platform base can be rotated leftwards and rightwards around the rotating shafts; the rear seat beams on the two sides on the rear end of the lifting rotation working platform base are respectively fixedly connected with a leveling cylinder installing seat on which a leveling cylinder is installed; and piston rods of the leveling cylinder are connected with the lifting rotation working platform base. The leveling device for the working platform of the railway contact net overhead line work vehicle is combined with a lifting rotation working platform of the railway contact net overhead line work vehicle, so that automatic/manual leveling of the lifting rotation working platform can be realized when the overhead line work vehicle is used for carrying out field operation on superhigh lines of outer rails.

Description

Railway contact line catenary working car job platform leveling equipment
Technical field
The utility model belongs to electrification contact network stringing construction operation driving skills art field, is specifically related to a kind of Operation Van job platform leveling equipment.
Background technology
Tradition operation vehicle for contact wire is lift rotary job platform meeting run-off the straight under the situation of superelevation of outer rail; The construction operation personnel can't stablize during construction operation on job platform and stand; And the personal safety to the construction operation personnel may damage; Produce industrial accident, therefore be necessary to improve.
The utility model content
The technical matters that the utility model solves: a kind of railway contact line catenary working car job platform leveling equipment is provided; This device makes up with the lift rotary job platform of railway contact line catenary working car; Can realize catenary working car's automatic/hand leveling of lift rotary job platform during construction operation on the circuit of superelevation of outer rail, solve operation vehicle for contact wire effectively and on job platform, can't stablize the problem of standing during construction operation construction operation personnel under the situation of superelevation of outer rail.
The technical scheme that the utility model adopts: railway contact line catenary working car job platform leveling equipment; Comprise levelling gear, leveling hydraulic efficiency pressure system and leveling electric control system; Said levelling gear comprises preceding seat beam, back seat beam and lift rotary job platform base; Seat beam is captiveed joint with vehicle frame respectively with the back seat beam before said; Said lift rotary job platform base front end both sides are connected with preceding seat beam through anterior rotating shaft, and lift rotary job platform base rear end both sides are passed through the rotating shaft at rear portion and are connected with back seat beam, and lift rotary job platform base left-right rotation around the shaft; The back seat beam of said lift rotary job platform base rear end both sides is captiveed joint with the leveling cyclinder mount pad that leveling cyclinder is installed respectively, and the piston rod of said leveling cyclinder all is connected with lift rotary job platform base.
Wherein, All be shaped on end seat on the lower surface of said lift rotary job platform base rear and front end; All be shaped on the said end seat and preceding seat beam and the pin-and-hole I corresponding pin-and-hole II of back on the seat beam, rotating shaft is connected with preceding seat beam end seat respectively through pin-and-hole I and pin-and-hole II with back seat beam.
Further, be shaped on the pin-and-hole III on the piston rod of said leveling cyclinder, its two ends were connected with end seat after bearing pin passed the pin-and-hole III.
Further, both sides, said lift rotary job platform base front end upper surface are equipped with the lock pin otic placode, and the locked cylinder mount pad that locked cylinder is installed is captiveed joint with preceding seat beam, and the piston rod of said locked cylinder can put in the lockhole that is shaped on the pin pin otic placode.
Further, said lift rotary job platform base respectively rotates 9 ° about can be around the shaft.
Wherein, Said leveling hydraulic efficiency pressure system comprises Hydraulic Pump, check valve, leveling system and locking system; Said leveling system comprises 3-position 4-way solenoid directional control valve I, Double throttle check valve I, bidirectional balanced valve I, bidirectional balanced valve II and leveling cyclinder; Connect 3-position 4-way solenoid directional control valve I input end behind the said Hydraulic Pump mouth serial connection check valve; The input end of the output termination Double throttle check valve of said 3-position 4-way solenoid directional control valve I, an output terminals A 1 of said Double throttle check valve connects bidirectional balanced valve I input end, leveling cyclinder epicoele of said bidirectional balanced valve I output termination; Another mouth B1 of said Double throttle check valve I connects bidirectional balanced valve II input end, said bidirectional balanced another leveling cyclinder epicoele of valve II output termination; Said locking system comprises 3-position 4-way solenoid directional control valve II, Double throttle check valve II, bidirectional hydraulic lock I, bidirectional hydraulic lock II and locked cylinder; Connect 3-position 4-way solenoid directional control valve I meta end behind the said Hydraulic Pump mouth serial connection check valve; Said 3-position 4-way solenoid directional control valve I meta termination 3-position 4-way solenoid directional control valve II input end; Said 3-position 4-way solenoid directional control valve II output termination Double throttle check valve II input end; Output terminals A 1 of said Double throttle check valve II connects bidirectional hydraulic lock II input end; Locked cylinder of said bidirectional hydraulic lock II output termination, said another mouth of Double throttle check valve II B1 connects bidirectional hydraulic lock I input end, said another locked cylinder of bidirectional hydraulic lock I output termination.
Further, said leveling hydraulic efficiency pressure system also is provided with force pump, and said check valve mouth is provided with compression indicator, and said leveling system is provided with the by pass valve I, and said locking system is provided with the by pass valve II.
Wherein, Said leveling electric control system comprises the PLC controller; Incoming signal, all import the PLC controller near the signal of switch collection and the analog signals of obliquity sensor collection, signal is handled back output control signal to platform control electromagnetic valve and status indicator lamp through the PLC controller.
Further; Said obliquity sensor comprises platform obliquity sensor and frame rake angle sensor; Said platform obliquity sensor and frame rake angle sensor are input to the analog quantity load module with the analog signals that the platform angle of gathering and vehicle frame angle signal convert 4~20mA into; Through the information exchange of PLC controller and analog quantity load module, the signal that collects is sent in the PLC controller.
The utility model compared with prior art can satisfy Operation Van's automatic leveling work of job platform when safe operation and construction operation under special line for passenger trains circuit superelevation of outer rail 180mm condition.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model structure side view;
Fig. 3 is the utility model leveling status architecture scheme drawing;
Fig. 4 is the leveling hydraulic system principle figure of the utility model;
Fig. 5 is the leveling electric control system functional block diagram of the utility model;
Fig. 6 is the utility model leveling process flow diagram flow chart.
The specific embodiment
A kind of embodiment of the utility model is described below in conjunction with accompanying drawing 1,2,3,4,5,6.
Railway contact line catenary working car job platform leveling equipment; Comprise levelling gear, leveling hydraulic efficiency pressure system and leveling electric control system; Said levelling gear comprises preceding seat beam 1, back seat beam 2 and lift rotary job platform base 3; Seat beam 1 is welded to connect with vehicle frame 13 respectively with back seat beam 2 and is one before said, is the basis of whole levelling gear; Said lift rotary job platform base 3 front end both sides are connected with preceding seat beam 1 through anterior rotating shaft 4; Both sides, lift rotary job platform base 3 rear end are connected with back seat beam 2 through the rotating shaft 4 at rear portion; And lift rotary job platform base 3 can about 4 respectively rotate 9 ° around the shaft; Be specially; All be shaped on end seat 7 on the lower surface of lift rotary job platform base 3 rear and front ends, all be shaped on the said end seat 7 with preceding seat beam 1 and back seat beam 2 on pin-and-hole I 8 corresponding pin-and-hole II 9, rotating shaft 4 is connected with preceding seat beam 1 end seat 7 respectively through pin-and-hole I 8 and pin-and-hole II 9 with back seat beam 2.The back seat beam 2 of both sides, said lift rotary job platform base 3 rear end is captiveed joint with the leveling cyclinder mount pad 6 that leveling cyclinder 5 is installed respectively; Be shaped on pin-and-hole III 14 on the piston rod of said leveling cyclinder 5, bearing pin 15 passes its two ends, pin-and-hole III 14 back and is connected with end seat 7.Leveling cyclinder 5 is engine installations of levelling gear, and the withdrawal through the stretching out of left end leveling cyclinder 5, right-hand member leveling cyclinder 5 (or withdrawal of the stretching out of right-hand member leveling cyclinder 5, left end leveling cyclinder 5) promotes lift rotary job platform base 3 and rotates the leveling that realizes job platforms.
Both sides, said lift rotary job platform base 3 front end upper surface are equipped with lock pin otic placode 10; The locked cylinder mount pad 12 that locked cylinder 11 is installed is captiveed joint with preceding seat beam 1, and the piston rod of said locked cylinder 11 can put in the lockhole 16 that is shaped on the pin pin otic placode 10.The piston rod of locked cylinder 11 is as lock pin, and it and lock pin otic placode 10 are formed blocking device.On lock pin otic placode 10, being processed with lockhole 16, is lock-out state in the time of in the piston rod of locked cylinder 11 stretches out the lockhole 16 that inserts on the lock pin otic placode 10, is released state during lockhole 16 on the piston rod of locked cylinder 11 bounces back out lock pin otic placode 10; This device returns to horizontality with job platform for safety locking motion after construction operation finishes, the piston rod of locked cylinder 11 stretch out with 3 lockings of vehicle frame lift rotary job platform base prevent the lift rotary job platform when driving accident tumble.
Said leveling hydraulic efficiency pressure system comprises Hydraulic Pump 22, check valve 21, leveling system and locking system; Said leveling system comprises 3-position 4-way solenoid directional control valve I 19, Double throttle check valve I 18, bidirectional balanced valve I 17, bidirectional balanced valve II 27 and leveling cyclinder 5; Connect 3-position 4-way solenoid directional control valve I 19 input ends behind the said Hydraulic Pump 22 mouths serial connection check valve 21; The input end of the output termination Double throttle check valve 18 of said 3-position 4-way solenoid directional control valve I 19; An output terminals A 1 of said Double throttle check valve 18 connects bidirectional balanced valve I 17 input ends, leveling cyclinder 5 epicoeles of said bidirectional balanced valve I 17 output terminations; Another mouth B1 of said Double throttle check valve I 18 connects bidirectional balanced valve II 27 input ends, said bidirectional balanced valve II 27 another leveling cyclinder 5 epicoeles of output termination; Said locking system comprises 3-position 4-way solenoid directional control valve II 25, Double throttle check valve II 24, bidirectional hydraulic lock I 28, bidirectional hydraulic lock II 29 and locked cylinder 11; Connect 3-position 4-way solenoid directional control valve I 19 meta ends behind the said Hydraulic Pump 22 mouths serial connection check valve 21; Said 3-position 4-way solenoid directional control valve I 19 meta termination 3-position 4-way solenoid directional control valve II 25 input ends; Said 3-position 4-way solenoid directional control valve II 25 output termination Double throttle check valve II 24 input ends; 24 1 output terminals A 1 of said Double throttle check valve II connect bidirectional hydraulic lock II 29 input ends; Locked cylinder 11 of said bidirectional hydraulic lock II 29 output terminations, said Double throttle check valve II 24 another mouth B1 connect bidirectional hydraulic lock I 28 input ends, said bidirectional hydraulic lock I 28 another locked cylinders 11 of output termination.Said leveling hydraulic efficiency pressure system also is provided with force pump 23, and said check valve 21 mouths are provided with compression indicator 30, and said leveling system is provided with by pass valve I 20, and said locking system is provided with by pass valve II 26.Leveling cyclinder 5 is executive devices of this system with locked cylinder 11; Turnover oil through 3-position 4-way solenoid directional control valve I19 control leveling cyclinder 5; Make piston rod telescopic drive lift rotary job platform base 3 rotations of leveling cyclinder 5; Realize the leveling of lift rotary job platform, and after operation is accomplished, locked cylinder 11 is stretched out to make 3 lockings of vehicle frame lift rotary job platform base.Bidirectional balanced valve I 17 is equal consistent the actions gently of stretching speed that guarantee left and right leveling cyclinder 5 of turnover oil mass that make leveling cyclinder 5 with bidirectional balanced valve II 27 significant feature.Bidirectional hydraulic lock I 28 and bidirectional hydraulic lock II 29 be safety guard it can prevent that locked cylinder 11 accidents from stretching out or bounce back.
Said leveling electric control system comprises the PLC controller; Incoming signal, all import the PLC controller near the signal of switch collection and the analog signals of obliquity sensor collection, signal is handled back output control signal to platform control electromagnetic valve and status indicator lamp through the PLC controller.
Said obliquity sensor comprises platform obliquity sensor and frame rake angle sensor; Said platform obliquity sensor and frame rake angle sensor are input to the analog quantity load module with the analog signals that the platform angle of gathering and vehicle frame angle signal convert 4~20mA into; Through the information exchange of PLC controller and analog quantity load module, the signal that collects is sent in the PLC controller.
Leveling equipment all states are in the course of the work all handled in the programmable PLC controller.The PLC controller is gathered near on-off signal and driver operation command signal, is confirmed leveling equipment control operating mode, realizes the locking of leveling flat-bed, release, feeds back to the PLC controller after release puts in place.Platform obliquity sensor and frame rake angle sensor are input to the analog quantity load module with the analog signals that the platform angle signal of gathering converts 4~20mA into; Information exchange through PLC controller and analog quantity load module; The signal that collects is sent in the PLC controller, and the PLC controller is confirmed input instruction and the residing operating mode of Operation Van through program analysis and calculating; And the residing angle position of platform, realize the exercises of control platform then.Control panel is provided with " scram button ", when being in an emergency in the leveling process, can pressing the danger button device and suddenly stop.Have only and when operating personal various power condition switch are got to relevant position, vehicle and be in the situation that corresponding operating mode, various protective condition all possess, leveling equipment just moves.
The foregoing description, just the preferred embodiment of the utility model is not to be used for limiting the utility model practical range, so all equivalences of being done with the said content of the utility model claim change, all should be included within the utility model claim scope.

Claims (9)

1. railway contact line catenary working car job platform leveling equipment; Comprise levelling gear, leveling hydraulic efficiency pressure system and leveling electric control system; Said levelling gear comprises preceding seat beam (1), back seat beam (2) and lift rotary job platform base (3); It is characterized in that: seat beam (1) is captiveed joint with vehicle frame (13) respectively with back seat beam (2) before said; Said lift rotary job platform base (3) front end both sides are connected with preceding seat beam (1) through anterior rotating shaft (4), and lift rotary job platform base (3) both sides, rear end are connected with back seat beam (2) through the rotating shaft (4) at rear portion, and lift rotary job platform base (3) (4) left-right rotation around the shaft; The back seat beam (2) of said lift rotary job platform base (3) both sides, rear end is captiveed joint with the leveling cyclinder mount pad (6) that leveling cyclinder (5) is installed respectively, and the piston rod of said leveling cyclinder (5) all is connected with lift rotary job platform base (3).
2. railway contact line according to claim 1 catenary working car job platform leveling equipment; It is characterized in that: all be shaped on end seat (7) on the lower surface of said lift rotary job platform base (3) rear and front end; All be shaped on the said end seat (7) with preceding seat beam (1) and back seat beam (2) on the corresponding pin-and-hole II of pin-and-hole I (8) (9), rotating shaft (4) is connected with preceding seat beam (1) end seat (7) respectively with pin-and-hole II (9) through pin-and-hole I (8) with back seat beam (2).
3. railway contact line according to claim 2 catenary working car job platform leveling equipment is characterized in that: be shaped on pin-and-hole III (14) on the piston rod of said leveling cyclinder (5), bearing pin (15) passes its two ends, pin-and-hole III (14) back and is connected with end seat (7).
4. according to claim 1 or 2 or 3 described railway contact line catenary working car job platform leveling equipments; It is characterized in that: both sides, said lift rotary job platform base (3) front end upper surface are equipped with lock pin otic placode (10); The locked cylinder mount pad (12) that locked cylinder (11) is installed is captiveed joint with preceding seat beam (1), and the piston rod of said locked cylinder (11) can put in the lockhole (16) that is shaped on the lock pin otic placode (10).
5. railway contact line according to claim 4 catenary working car job platform leveling equipment, it is characterized in that: said lift rotary job platform base (3) can respectively rotate 9 ° around the shaft about (4).
6. railway contact line according to claim 1 and 2 catenary working car job platform leveling equipment; It is characterized in that: said leveling hydraulic efficiency pressure system comprises Hydraulic Pump (22), check valve (21), leveling system and locking system; Said leveling system comprises 3-position 4-way solenoid directional control valve I (19), Double throttle check valve I (18), bidirectional balanced valve I (17), bidirectional balanced valve II (27) and leveling cyclinder (5); Connect 3-position 4-way solenoid directional control valve I (19) input end behind said Hydraulic Pump (22) the mouth serial connection check valve (21); The input end of the output termination Double throttle check valve (18) of said 3-position 4-way solenoid directional control valve I (19); An output terminals A 1 of said Double throttle check valve (18) connects bidirectional balanced valve I (17) input end, said bidirectional balanced valve I (a 17) output leveling cyclinder of termination (5) epicoele; Another mouth B1 of said Double throttle check valve I (18) connects bidirectional balanced valve II (27) input end, said bidirectional balanced valve II (27) output another leveling cyclinder of termination (5) epicoele; Said locking system comprises 3-position 4-way solenoid directional control valve II (25), Double throttle check valve II (24), bidirectional hydraulic lock I (28), bidirectional hydraulic lock II (29) and locked cylinder (11); Connect 3-position 4-way solenoid directional control valve I (19) meta end behind said Hydraulic Pump (22) the mouth serial connection check valve (21); Said 3-position 4-way solenoid directional control valve I (19) meta termination 3-position 4-way solenoid directional control valve II (25) input end; Said 3-position 4-way solenoid directional control valve II (25) output termination Double throttle check valve II (24) input end; (24) output terminals A 1 of said Double throttle check valve II connect bidirectional hydraulic lock II (29) input end; Said bidirectional hydraulic lock II (a 29) output locked cylinder of termination (11); Another mouth of said Double throttle check valve II (24) B1 connects bidirectional hydraulic lock I (28) input end, said bidirectional hydraulic lock I (28) output another locked cylinder of termination (11).
7. railway contact line according to claim 6 catenary working car job platform leveling equipment; It is characterized in that: said leveling hydraulic efficiency pressure system also is provided with force pump (23); Said check valve (21) mouth is provided with compression indicator (30); Said leveling system is provided with by pass valve I (20), and said locking system is provided with by pass valve II (26).
8. railway contact line according to claim 1 and 2 catenary working car job platform leveling equipment; It is characterized in that: said leveling electric control system comprises the PLC controller; Incoming signal, all import the PLC controller near the signal of switch collection and the analog signals of obliquity sensor collection, signal is handled back output control signal to platform control electromagnetic valve and status indicator lamp through the PLC controller.
9. railway contact line according to claim 8 catenary working car job platform leveling equipment; It is characterized in that: said obliquity sensor comprises platform obliquity sensor and frame rake angle sensor; Said platform obliquity sensor and frame rake angle sensor are input to the analog quantity load module with the analog signals that the platform angle of gathering and vehicle frame angle signal convert 4~20mA into; Through the information exchange of PLC controller and analog quantity load module, the signal that collects is sent in the PLC controller.
CN2011202878436U 2011-08-10 2011-08-10 Leveling device for working platform of railway contact net overhead line work vehicle CN202297050U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202878436U CN202297050U (en) 2011-08-10 2011-08-10 Leveling device for working platform of railway contact net overhead line work vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202878436U CN202297050U (en) 2011-08-10 2011-08-10 Leveling device for working platform of railway contact net overhead line work vehicle

Publications (1)

Publication Number Publication Date
CN202297050U true CN202297050U (en) 2012-07-04

Family

ID=46365988

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202878436U CN202297050U (en) 2011-08-10 2011-08-10 Leveling device for working platform of railway contact net overhead line work vehicle

Country Status (1)

Country Link
CN (1) CN202297050U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102295253A (en) * 2011-08-10 2011-12-28 宝鸡南车时代工程机械有限公司 Working platform leveling device for catenary working car of railway contact line
CN108860245A (en) * 2017-05-09 2018-11-23 天津滨海光热技术研究院有限公司 A kind of application of light field cell module transport installation vehicle
CN110499898A (en) * 2019-08-27 2019-11-26 广东博智林机器人有限公司 A kind of leveling device and the construction robot with it
CN111546302A (en) * 2020-05-19 2020-08-18 章叔贞 Platform is placed to topographic survey smart machine to network 3D map

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102295253A (en) * 2011-08-10 2011-12-28 宝鸡南车时代工程机械有限公司 Working platform leveling device for catenary working car of railway contact line
CN102295253B (en) * 2011-08-10 2014-04-23 宝鸡南车时代工程机械有限公司 Working platform leveling device for catenary working car of railway contact line
CN108860245A (en) * 2017-05-09 2018-11-23 天津滨海光热技术研究院有限公司 A kind of application of light field cell module transport installation vehicle
CN110499898A (en) * 2019-08-27 2019-11-26 广东博智林机器人有限公司 A kind of leveling device and the construction robot with it
CN111546302A (en) * 2020-05-19 2020-08-18 章叔贞 Platform is placed to topographic survey smart machine to network 3D map

Similar Documents

Publication Publication Date Title
CN103231719B (en) Double-power railway track comprehensive inspection vehicle
CN103056866A (en) Live-working robot of transformer substation
CN103213525B (en) Multi-working-surface operation vehicle for contact wire
CN201010450Y (en) Clamp crane
CN201010858Y (en) Device especially for bridge detecting and maintaining
CN201442828U (en) Vehicle-bottom hydraulic lifting machine
CN202899694U (en) Front-driving-type double-layer steroscopic garage
CN105398999B (en) Telescopic arm and slope integrated-type jack
CN1296686C (en) Indoor test and detection device for wind proof safety brake of port crane
CN201429512Y (en) Steering engine loading test device
CN102410030B (en) Multipurpose tunnel operating vehicle
CN203269392U (en) Road emergency rescue device
CN201753238U (en) Hydraulic operating mechanism of automobile crane
CN203515388U (en) Novel automatic tube arranging mechanical arm
CN205294696U (en) Construct small -size traveling hoist
CN1765729A (en) Hydraulic automatic balanced crane installment
CN201049873Y (en) Lifter for mounting and dismounting transmission case
CN206448170U (en) A kind of efficient Bridge Construction platform
CN1693176A (en) All hydraulic caterpillar cranes
CN202098991U (en) Movable type folding crane
CN2815993Y (en) Fully hydraulic caterpillar-belt crane
CN2861264Y (en) Expansion apparatus for bridge detecting vehicle
CN202325556U (en) Multi-functional tunnel operation vehicle
CN204731986U (en) A kind of high artificial intelligence police robot
CN101725590B (en) Air driving device with locking unit

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
RGAV Abandon patent right to avoid regrant
AV01 Patent right actively abandoned

Granted publication date: 20120704

Effective date of abandoning: 20140423