CN202808294U - Weight lifting and high-air operation equipment - Google Patents
Weight lifting and high-air operation equipment Download PDFInfo
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- CN202808294U CN202808294U CN 201220414778 CN201220414778U CN202808294U CN 202808294 U CN202808294 U CN 202808294U CN 201220414778 CN201220414778 CN 201220414778 CN 201220414778 U CN201220414778 U CN 201220414778U CN 202808294 U CN202808294 U CN 202808294U
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Abstract
The utility model relates to weight lifting and high-air operation equipment which comprises a self-walking mechanism, a driving device and a work arm, wherein the self-walking mechanism is provided with a mounting platform, the driving device is fixedly arranged on the mounting platform, and the self-walking mechanism and the driving device are arranged in a hydraulic transmission connection mode. The work arm consists of a main work arm and an auxiliary work arm, the head portion of the main work arm is connected with a clamping mechanism or a working platform, a main support is arranged on the tail portion of the main work arm, and the main support is arranged on the upper portion of the mounting platform, and a main rotary oil cylinder is arranged between the main support and the mounting platform. The head portion of the auxiliary work arm is connected with the working platform, an auxiliary support is arranged on the tail portion of the auxiliary work arm, the auxiliary support is arranged at the front end of the mounting platform, and an auxiliary rotary oil cylinder is arranged between the auxiliary support and the mounting platform. The main work arm and the auxiliary work arm can work in a matched mode or work independently, motion is flexible, rotary scope is large, size is small, working efficiency is high, and mechanical exploit of a coal mine is achieved.
Description
Technical field
The utility model relates to a kind of coal mine operation device, specifically relates to a kind of weight lifting and aerial lift device.
Background technology
Coal is described as the gold of black by people, the grain of industry, and it has been one of main energy sources that the human world uses since 18th century.The coal resources of China are very abundant, occupy the prostatitis in the world, are only second to the U.S. and Russia.It is the main big coal country in the world.
Because the burial depth of coal resources is different, also there is dividing of pit mining (burying darker) and strip mining transformation (burying more shallow) on mining type general homology ground.Wherein, can opencast stock number proportion size in total resources, be the important indicator of weighing the mining conditions quality, China can only account for 7.5% by opencast reserves, most of colliery all needs to carry out pit mining.The especially artificial underground mining of the underground mining of coal is a very arduous job, and danger is very high, for improving underground labour's labor condition, reduce workman's labour intensity, the modernization of coal mining, mechanization, high efficiency have become the developing direction of coal mining.
Improve a lot than before although at present coal mining mechanization is used mutually, some in coal mine roadway auxiliary work or total man worker finish.Mainly by manpower, higher lifting also needs interim building platform such as the work such as lifting of the weights such as girder steel up and down; When needing aloft work, the workman wants interim building platform.Owing to be subjected to condition restriction special under the coal mine, it is low to finish above these face mechanization degree, and labor strength is large, needs more workman to work simultaneously, has certain potential safety hazard.
Summary of the invention
For the defective of prior art, the purpose of this utility model provides and a kind ofly can effectively reduce underground labour's labour intensity, improves the borehole operation safety, and applied range is adaptable, can realize weight lifting and the aerial lift device of mechanical mining.
For reaching above-mentioned purpose, the utility model has adopted following technical scheme:
A kind of weight lifting and aerial lift device, comprise automatic walking mechanism, actuating device and working arm, automatic walking mechanism is provided with erecting stage, actuating device is fixedly mounted on the erecting stage, and automatic walking mechanism is that hydrostatic drive is connected with actuating device, wherein, working arm comprises main working arm and back work arm, the head of main working arm links to each other with clamping device or workplatform, and afterbody is equipped with main bearing, and the top that main bearing is installed in erecting stage also and between the erecting stage is provided with a main rotary oil cylinder; The head of back work arm links to each other with workplatform, and afterbody is equipped with auxiliary support, and the front end that auxiliary support is installed in erecting stage also and between the erecting stage is provided with auxiliary rotary oil cylinder.
The utility model also can further be realized by following scheme:
Described weight lifting and aerial lift device, wherein, described main working arm comprises the large arm of main work, main work forearm and main work four-bar linkage, one end of main work and main work forearm are rotationally connected, the other end and main bearing are rotationally connected, the large arm hoist cylinder of main work is established in the bottom of the large arm of main work, and the telescopic end of the large arm hoist cylinder of main work and the large arm of main work are rotationally connected, and coupling end and main bearing are rotationally connected; Main work forearm one end is rotationally connected by main work four-bar linkage and clamping device or workplatform, and the other end and the large arm of main work are rotationally connected; Main work forearm oscillating oil cylinder is located at the top of the large arm of main work, and its telescopic end and main work forearm lower end are rotationally connected, and coupling end and the large arm of main work are rotationally connected; The lower end of main work four-bar linkage is installed in the front end of main work forearm, and the upper end is rotationally connected with the telescopic end of the main work four connecting rod oil cylinders that are arranged on main work forearm upper end; Main rotary oil cylinder, the large arm hoist cylinder of main work, main work forearm oscillating oil cylinder and main work four connecting rod oil cylinders link to each other with actuating device with the oil passage control valve of actuating device by hydraulic tubing respectively, realize rotation, the lifting of the large arm of main work, and the swing of main work forearm and main work four-bar linkage.
Described weight lifting and aerial lift device, wherein, described back work arm comprises the large arm of back work, back work forearm and back work four-bar linkage, one end and the back work forearm of the large arm of back work are rotationally connected, the other end and auxiliary support are rotationally connected, the large arm hoist cylinder of back work is established in the bottom of the large arm of back work, and the telescopic end of the large arm hoist cylinder of back work and the large arm of back work are rotationally connected, and coupling end and auxiliary support are rotationally connected; Back work forearm one end is rotationally connected by back work four-bar linkage and workplatform, and the large arm of the other end and back work is rotationally connected; Back work forearm oscillating oil cylinder is located at the top of the large arm of back work, and its telescopic end and back work forearm lower end are rotationally connected, and the large arm of coupling end and back work is rotationally connected; The lower end of back work four-bar linkage is installed in the front end of back work forearm, and the upper end is rotationally connected with the telescopic end of the back work four connecting rod oil cylinders that are arranged on back work forearm upper end; Auxiliary rotary oil cylinder, the large arm hoist cylinder of back work, back work forearm oscillating oil cylinder and back work four connecting rod oil cylinders link to each other with actuating device with the oil passage control valve of actuating device by hydraulic tubing respectively, realize rotation, the lifting of the large arm of back work, and the swing of back work forearm and back work four-bar linkage.
Described weight lifting and aerial lift device, wherein, described automatic walking mechanism is that crawler self is walked mechanism.
Described weight lifting and aerial lift device, wherein, described erecting stage top is provided with slide rail, main bearing sliding is installed on the slide rail, the telescopic end of one slippage oil cylinder links to each other with a side of rotary oil cylinder, coupling end links to each other with actuating device, drives the large arm of main work and main rotary oil cylinder along slide rail front and back slippage.
Described weight lifting and aerial lift device wherein, are installed clamping device on the described main working arm, erection work platform on the back work arm.
Described weight lifting and aerial lift device, wherein, described clamping device is manipulator.
Weight lifting of the present utility model and aerial lift device are provided with main and auxiliary two working arms that help, and two working arm flexible movements can realize large-scale rotation, and during work anglec of rotation 0-180 °, maximum lift height 5500mm.Each working arm is regained when mobile, and width only has 1400mm, highly only has 2000mm, is adapted at moving in the coal mine roadway, and what exceed takes up room.The large arm rotating mechanism of main working arm adopts advanced rotary oil cylinder, thereby reduces equipment volume, realizes the flexible operating in the small space, and then can realize easily several functions.
Weight lifting of the present utility model and aerial lift device, the movement of automatic walking mechanism finishing equipment makes equipment moving to the work place, the adjustment of all right completing place when work.Main working arm is comprised of two joint arms and a four-bar linkage, on the main working arm clamping device is installed, clamping device is the manipulator that can finish clamping, rotation and the function such as flexible, by the mechanisms such as large arm, forearm and four connecting rods that adjust main working arm, cooperate simultaneously large arm rotation, slippage and clamping device step up, rotate and the action such as flexible finish weight promptly and lifting as about the work such as girder steel.The back work arm installs workplatform additional, by finish the work personnel's aloft work of the actions such as lifting, rotation, movement.Main working arm and back work arm can be used, and can realize very easily personnel's aloft work.Also can use separately, when only needing higher workplatform, can use main working arm as the working arm of job platform lifting.
Weight lifting of the present utility model and aerial lift device also can arrange slide rail at erecting stage, and drive main working arm integral body by rotary oil cylinder and slippage oil cylinder and be rotated and slippage, thus the adjustment of the middle position of can more conveniently finishing the work.
Weight lifting of the present utility model and aerial lift device have been realized mechanical mining, improved capacity rating, greatly reduce the workman labour intensity, improved the workman working environment, improved workman's safety.
Description of drawings
Fig. 1 is the structural representation of weight lifting of the present utility model and aerial lift device.
The specific embodiment
As shown in Figure 1, a kind of weight lifting and aerial lift device, comprise automatic walking mechanism, actuating device, working arm and operating head, wherein, actuating device is that hydrostatic drive is connected with automatic walking mechanism, the best crawler self that adopts of automatic walking mechanism is walked mechanism, can adopt the crawler self of existing any fluid control to walk mechanism.As shown in Figure 1, can adopt the automatic walking mechanism of following structure, it comprises erecting stage 1-1, traveling crawler 1-2, running motor and reductor 1-3, drive sprocket 1-4, track beam 1-5, tension wheel 1-6.Traveling crawler 1-2 is two, erecting stage is fixedly mounted on the top of traveling crawler 1-2 by the track beam 1-5 that is fixed together with erecting stage 1-1 bolt; Be disposed with from back to front running motor and reductor 1-3, drive sprocket 1-4 in the traveling crawler 1-2,, track beam 1-5 and tension wheel 1-6.Running motor and reductor 1-3 are captiveed joint with drive sprocket 1-4 bolt with track beam 1-5 respectively, tension wheel 1-6 and track beam 1-5 sliding block joint.Running motor and reductor 1-3 drive drive sprocket 1-4 rotation, and traveling crawler 1-2 walks under drive sprocket 1-4 rotary actuation, and tension wheel 1-6 plays tension in the process of walking.
Actuating device is installed in the casing 1 at rear portion of erecting stage 1-1, is used for driving the complete machine operation, namely drives automatic walking mechanism, working arm and operating head and carries out work.Actuating device comprises Hydraulic Pump 1-7, coupler 1-8, propulsion source 1-9, and Hydraulic Pump 1-7 is connected with propulsion source 1-9 by coupler 1-8.Propulsion source 1-9 adopts fire proof motor or anti-explosion diesel engine.Hydraulic Pump links to each other (for avoiding confusion with running motor and the reductor 1-3 of each working arm and automatic walking mechanism with hydraulic tubing by oil circuit, omit oil circuit and hydraulic pressure road pipeline among the figure, can the concrete needs when using carrying out pipeline according to existing mode connects and the valve setting), and realize control to each parts action of whole system by the hydraulic valve installed on the pipeline, and then realize the work of whole equipment.During specific works, hydraulic oil enters multiple directional control valve after Hydraulic Pump 1-7 pumps, multiple directional control valve by hydraulic oil pipe respectively with running motor and reductor 1-3, main working arm slippage oil cylinder 2-1, the large arm hoist cylinder of main work 2-4, main work forearm oscillating oil cylinder 2-6, main work four connecting rod oil cylinder 2-8, main work four connecting rod 2-9, crushing mechanism 3, back work rotary oil cylinder 3-1, the large arm hoist cylinder of back work 3-3, the large arm 3-4 of back work, back work forearm oscillating oil cylinder 3-5, back work four connecting rod oil cylinder 3-7, the actuating units such as clamping device 4 and workplatform 5 link to each other.By change-over valve conversion oil circuit and hydraulic-driven route, finish the action drives to each hydraulic actuator.
Working arm comprises main working arm 2 and back work arm 4, the head of main working arm 2 links to each other with clamping device 4, afterbody is equipped with main bearing 2-3, and main bearing 2-3 is installed in the top of erecting stage 1-1, is provided with main rotary oil cylinder 2-10 between main bearing 2-3 and the erecting stage 1-1.The head of back work arm 4 links to each other with workplatform 5, and afterbody is equipped with auxiliary support 3-2, and auxiliary support 3-2 is installed in the front end of erecting stage 1-1, is provided with auxiliary rotary oil cylinder 3-1 between auxiliary support 3-2 and the erecting stage 1-1.
Main working arm 2 comprises class " L " type master work large arm 2-5, main work forearm 2-7 and main work four-bar linkage 2-9, the end of the large arm 2-5 of main work and main work forearm 2-7 are rotationally connected, the other end and main bearing 2-3 are rotationally connected, the large arm hoist cylinder of main work 2-4 is established in the bottom of the large arm 2-5 of main work, the telescopic end of the large arm hoist cylinder of main work 2-4 and the middle part of the large arm 2-5 of main work are rotationally connected, and coupling end and main bearing 2-3 are rotationally connected.Main work forearm 2-7 one end is rotationally connected by main work four-bar linkage 2-9 and clamping device 4, and the front end of the other end and the large arm 2-5 of main work is rotationally connected; Main work forearm oscillating oil cylinder 2-6 is located at the top of the large arm of main work, and its telescopic end and main work forearm 2-7 lower end are rotationally connected, and the middle part of coupling end and the large arm 2-5 of main work is rotationally connected.The lower end of main work four-bar linkage 2-9 is installed in the front end of main work forearm 2-7, and the upper end is rotationally connected with the telescopic end of the main work four connecting rod oil cylinder 2-8 that are arranged on main work forearm 2-7 upper end; Main rotary oil cylinder 2-10, the large arm hoist cylinder of main work 2-4, main work forearm oscillating oil cylinder 2-6 and main work four connecting rod oil cylinder 2-8 link to each other with actuating device 1 by the oil passage control valve of hydraulic tubing and actuating device 1 respectively, and then realize rotation, the lifting of the large arm 2-5 of main work by oil passage control valve, the swing of main work forearm 2-7, and and the swing of main work four-bar linkage 2-9.
Back work arm 4 comprises the large arm 3-4 of class " L " type back work, back work forearm 3-6 and back work four-bar linkage 3-8, the end of the large arm 3-4 of back work and back work forearm 3-6 are rotationally connected, the other end and auxiliary support 3-2 are rotationally connected, the large arm hoist cylinder of back work 3-3 is established in the bottom of the large arm 3-4 of back work, the telescopic end of the large arm hoist cylinder of back work 3-3 and the middle part of the large arm 3-4 of back work are rotationally connected, and coupling end and auxiliary support 3-2 are rotationally connected. and the other end of back work forearm 3-6 is rotationally connected by back work four-bar linkage 3-8 and workplatform 5.Back work forearm oscillating oil cylinder 3-5 is located at the top of the large arm 3-4 of back work, and its telescopic end and back work forearm 3-6 lower end are rotationally connected, and the middle part of the large arm 3-4 of coupling end and back work is rotationally connected.The lower end of back work four-bar linkage 3-8 is installed in the front end of back work forearm 3-6, and the upper end is rotationally connected with the telescopic end of the back work four connecting rod oil cylinder 3-7 that are arranged on back work forearm 3-6 upper end; Auxiliary rotary oil cylinder 3-1, the large arm hoist cylinder of back work 3-3, back work forearm oscillating oil cylinder 3-5 and back work four connecting rod oil cylinder 3-7 link to each other with actuating device 1 with the oil passage control valve of actuating device 1 by hydraulic tubing respectively, realize rotation, the lifting of the large arm 3-4 of back work, the swing of back work forearm 3-2, and the swing of back work four-bar linkage 3-8.
The top of erecting stage 1-1 can also fixedly mount a pair of slide rail 2-2, the rear end of slide rail 2-2 is fixedly mounted on the front end of actuating device 1, main bearing 2-3 is slidingly mounted on the slide rail 2-2, the telescopic end of one slippage oil cylinder 2-1 links to each other with the side of rotary oil cylinder 2-10, coupling end links to each other with actuating device 1, slippage oil cylinder 2-1 drives main working arm 2 and main rotary oil cylinder 2-10 slippage before and after the slide rail 2-2, thereby further increases the operating range of main working arm.
Wherein, clamping device 4 can adopt the manipulator with clamping, rotation and Telescopic, cooperate the large arm 2-5 of main work rotation, slippage and clamping device 4 step up, rotate and the action such as flexible finish weight promptly and lifting as about the work such as girder steel.Back work arm 3 installs workplatform 5 additional, by finish the work personnel's aloft work of the actions such as lifting, rotation, movement.Main working arm 2 and back work arm 3 can be used, and can realize very easily personnel's aloft work.Also can use separately, when only needing higher workplatform, also can use main working arm to connect workplatform 5, as the working arm of job platform lifting.
The above is preferred embodiment of the present utility model only, is not that the utility model is done any pro forma restriction.Any change that is equal to, modification or differentiation etc. that all those skilled in the art utilize the technical solution of the utility model that above-described embodiment is made all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. a weight lifting and aerial lift device, comprise automatic walking mechanism, actuating device and working arm, automatic walking mechanism is provided with erecting stage, and actuating device is fixedly mounted on the erecting stage, automatic walking mechanism is that hydrostatic drive is connected with actuating device, it is characterized in that:
Working arm comprises main working arm and back work arm, and the head of main working arm links to each other with clamping device or workplatform, and afterbody is equipped with main bearing, and the top that main bearing is installed in erecting stage also and between the erecting stage is provided with a main rotary oil cylinder; The head of back work arm links to each other with workplatform, and afterbody is equipped with auxiliary support, and the front end that auxiliary support is installed in erecting stage also and between the erecting stage is provided with auxiliary rotary oil cylinder.
2. weight lifting according to claim 1 and aerial lift device is characterized in that:
Described main working arm comprises the large arm of main work, main work forearm and main work four-bar linkage, one end of main work and main work forearm are rotationally connected, the other end and main bearing are rotationally connected, the large arm hoist cylinder of main work is established in the bottom of the large arm of main work, the telescopic end of the large arm hoist cylinder of main work and the large arm of main work are rotationally connected, and coupling end and main bearing are rotationally connected; Main work forearm one end is rotationally connected by main work four-bar linkage and clamping device or workplatform, and the other end and the large arm of main work are rotationally connected; Main work forearm oscillating oil cylinder is located at the top of the large arm of main work, and its telescopic end and main work forearm lower end are rotationally connected, and coupling end and the large arm of main work are rotationally connected; The lower end of main work four-bar linkage is installed in the front end of main work forearm, and the upper end is rotationally connected with the telescopic end of the main work four connecting rod oil cylinders that are arranged on main work forearm upper end; Main rotary oil cylinder, the large arm hoist cylinder of main work, main work forearm oscillating oil cylinder and main work four connecting rod oil cylinders link to each other with actuating device with the oil passage control valve of actuating device by hydraulic tubing respectively, realize rotation, the lifting of the large arm of main work, and the swing of main work forearm and main work four-bar linkage.
3. weight lifting according to claim 1 and aerial lift device is characterized in that:
Described back work arm comprises the large arm of back work, back work forearm and back work four-bar linkage, one end and the back work forearm of the large arm of back work are rotationally connected, the other end and auxiliary support are rotationally connected, the large arm hoist cylinder of back work is established in the bottom of the large arm of back work, the telescopic end of the large arm hoist cylinder of back work and the large arm of back work are rotationally connected, and coupling end and auxiliary support are rotationally connected; Back work forearm one end is rotationally connected by back work four-bar linkage and workplatform, and the large arm of the other end and back work is rotationally connected; Back work forearm oscillating oil cylinder is located at the top of the large arm of back work, and its telescopic end and back work forearm lower end are rotationally connected, and the large arm of coupling end and back work is rotationally connected; The lower end of back work four-bar linkage is installed in the front end of back work forearm, and the upper end is rotationally connected with the telescopic end of the back work four connecting rod oil cylinders that are arranged on back work forearm upper end; Auxiliary rotary oil cylinder, the large arm hoist cylinder of back work, back work forearm oscillating oil cylinder and back work four connecting rod oil cylinders link to each other with actuating device with the oil passage control valve of actuating device by hydraulic tubing respectively, realize rotation, the lifting of the large arm of back work, and the swing of back work forearm and back work four-bar linkage.
4. weight lifting according to claim 1 and aerial lift device is characterized in that:
Described automatic walking mechanism is that crawler self is walked mechanism.
5. weight lifting according to claim 1 and aerial lift device is characterized in that:
Described erecting stage top is provided with slide rail, and main bearing sliding is installed on the slide rail, and the telescopic end of a slippage oil cylinder links to each other with a side of rotary oil cylinder, and coupling end links to each other with actuating device, drives main working arm and main rotary oil cylinder along slide rail front and back slippage.
6. weight lifting according to claim 5 and aerial lift device is characterized in that:
On the described main working arm clamping device is installed, erection work platform on the back work arm.
7. arbitrary described weight lifting and aerial lift device according to claim 1-6 is characterized in that:
Described clamping device is manipulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220414778 CN202808294U (en) | 2012-08-17 | 2012-08-17 | Weight lifting and high-air operation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220414778 CN202808294U (en) | 2012-08-17 | 2012-08-17 | Weight lifting and high-air operation equipment |
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| Publication Number | Publication Date |
|---|---|
| CN202808294U true CN202808294U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220414778 Expired - Fee Related CN202808294U (en) | 2012-08-17 | 2012-08-17 | Weight lifting and high-air operation equipment |
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| CN (1) | CN202808294U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104055466A (en) * | 2014-05-15 | 2014-09-24 | 昆山协多利洁净科技有限公司 | Overhead flushing arm |
| CN104129741A (en) * | 2014-07-03 | 2014-11-05 | 国家电网公司 | Vehicular elevated integrated platform device for electric power construction |
| CN106744558A (en) * | 2017-03-23 | 2017-05-31 | 陕西奥力信工程机械有限公司 | A kind of combined high-altitude operation vehicle |
| CN107215827A (en) * | 2017-07-10 | 2017-09-29 | 徐州徐工随车起重机有限公司 | Tunnel Inspection device |
| CN107651619A (en) * | 2017-10-10 | 2018-02-02 | 浙江鼎力机械股份有限公司 | Template lifts Mobile workbench |
| CN109110699A (en) * | 2018-09-11 | 2019-01-01 | 中国铁建重工集团有限公司 | A kind of nacelle device and engineering machinery |
-
2012
- 2012-08-17 CN CN 201220414778 patent/CN202808294U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104055466A (en) * | 2014-05-15 | 2014-09-24 | 昆山协多利洁净科技有限公司 | Overhead flushing arm |
| CN104129741A (en) * | 2014-07-03 | 2014-11-05 | 国家电网公司 | Vehicular elevated integrated platform device for electric power construction |
| CN104129741B (en) * | 2014-07-03 | 2016-08-24 | 国家电网公司 | A kind of vehicular power construction overhead comprehensive platform device |
| CN106744558A (en) * | 2017-03-23 | 2017-05-31 | 陕西奥力信工程机械有限公司 | A kind of combined high-altitude operation vehicle |
| CN107215827A (en) * | 2017-07-10 | 2017-09-29 | 徐州徐工随车起重机有限公司 | Tunnel Inspection device |
| CN107215827B (en) * | 2017-07-10 | 2023-03-07 | 徐州徐工随车起重机有限公司 | Tunnel inspection operation device |
| CN107651619A (en) * | 2017-10-10 | 2018-02-02 | 浙江鼎力机械股份有限公司 | Template lifts Mobile workbench |
| CN109110699A (en) * | 2018-09-11 | 2019-01-01 | 中国铁建重工集团有限公司 | A kind of nacelle device and engineering machinery |
| CN109110699B (en) * | 2018-09-11 | 2021-03-23 | 中国铁建重工集团股份有限公司 | Hanging flower basket device and engineering machine tool |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20200817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |