CN209697434U - A kind of civil engineering multistratum classification sand sieving machine - Google Patents

A kind of civil engineering multistratum classification sand sieving machine Download PDF

Info

Publication number
CN209697434U
CN209697434U CN201920257184.8U CN201920257184U CN209697434U CN 209697434 U CN209697434 U CN 209697434U CN 201920257184 U CN201920257184 U CN 201920257184U CN 209697434 U CN209697434 U CN 209697434U
Authority
CN
China
Prior art keywords
sieve
sieving machine
screen frame
sand sieving
shell
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
CN201920257184.8U
Other languages
Chinese (zh)
Inventor
朱杰
南哲勋
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 CN201920257184.8U priority Critical patent/CN209697434U/en
Application granted granted Critical
Publication of CN209697434U publication Critical patent/CN209697434U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of civil engineering multistratum classification sand sieving machines, including shell, feed hopper, the first sieve, the second sieve, the feed hopper is welded with above the shell, first screen frame is welded on the enclosure interior, first sieve is mounted by means of screws on the inside of first screen frame, it is bolted below first sieve and the first vibrating motor is installed, be provided with the first guide inclined plate below first vibrating motor.The utility model can be fixed on the ground smoothly; height is conveniently adjusted; trolley can be replaced by the on-off of the first solenoid valve of control or second solenoid valve, not need to close sand sieving machine, sand falls in ground during can effectively avoid replacement trolley; improve the husky efficiency of sieve; reduce the labor intensity of staff, in the sand sieving machine course of work, inner spring and outer spring can absorb sand sieving machine sieve it is husky during caused by vibration; it plays a protective role to sand sieving machine, extends the service life of sand sieving machine.

Description

A kind of civil engineering multistratum classification sand sieving machine
Technical field
The utility model relates to field of civil engineering, in particular to a kind of civil engineering multistratum classification sand sieving machine.
Background technique
Sand sieving machine is exactly a kind of placer machinery that thickness feed separation is come using screening plant.
Currently, application No. is the Chinese patents of CN201820256273.6 for comparison, a kind of civil engineering multilayer point is disclosed Class sand sieving machine belongs to civil engineering machine technical field, and the multistratum classification sand sieving machine is mainly by screen frame (unit), two sieve plates, two sieves Net, sand suction pump, two cam compositions, sand are sucked from sand suction pump, are fallen on two sieve plates, the sieve that sieve plate is equipped with is to sand Be filtered, generated by cam and drive sieve plate vibration, by cannot get through sieve bulky grain sand respectively at left and right sides of screen frame (unit) Sand outlet discharge, most thin sand can be placed on small handcart below screen frame (unit) in the underface of screen frame (unit), are conveniently connect sand and are removed Fortune, by motor drive, user only needs for sand pump to be placed on sand drift can be from screen frame (unit) for the rotations of two cams Lower section is connected to fine sand.
But this civil engineering multistratum classification sand sieving machine is not easy steadily to fix on the ground, replaces the process of small handcart In, sand is easy stream on ground, needs the subsequent cleaning of staff, increases the labor intensity of staff, if closing sieve Husky machine replaces small handcart, can reduce the husky efficiency of sieve, and sand sieving machine is easy to produce vibration during the work time, be easy to make sand sieving machine At damage, the service life of sand sieving machine is reduced, it would therefore be desirable to which further on this basis improved.
Utility model content
The purpose of this utility model, which is that, provides a kind of civil engineering multistratum classification sand sieving machine, to solve in above-mentioned background It is proposed that this civil engineering multistratum classification sand sieving machine is not easy steadily to fix on the ground, during replacing small handcart, sand holds Easily stream needs the subsequent cleaning of staff, increases the labor intensity of staff on ground, if it is small to close sand sieving machine replacement Cart can reduce the husky efficiency of sieve, and sand sieving machine is easy to produce vibration during the work time, is easy to damage sand sieving machine, drop The problem of low service life of sand sieving machine.
To achieve the above object, the utility model provides the following technical solutions: a kind of civil engineering multistratum classification sand sieving machine, Including shell, feed hopper, the first sieve, the second sieve, it is welded with the feed hopper above the shell, the first screen frame is welded on The enclosure interior, the first screen frame inside are mounted by means of screws with first sieve, the first sieve lower section It is bolted and the first vibrating motor is installed, be provided with the first guide inclined plate below first vibrating motor, described the It is provided with the second screen frame below one guide inclined plate, is mounted by means of screws with second sieve on the inside of second screen frame, It is bolted below second sieve and the second vibrating motor is installed, be provided with second below second vibrating motor Guide inclined plate, the second guide inclined plate lower section are provided with third guide inclined plate, and the shell side is welded with the first aggregate bin, The shell other side is welded with the second aggregate bin, and the first solenoid valve, second collection are equipped with below first aggregate bin Second solenoid valve is installed below hopper, is welded with outer support column below the shell, is equipped with inside the outer support column interior Spring is equipped with inner support column below the inner spring, is provided with outer spring on the outside of the inner support column, under the inner support column Side, which is bolted, is equipped with electric telescopic rod, and the electric telescopic rod is mounted by means of bolts on above the bottom plate, Movable pulley is mounted by means of bolts below bottom plate, is provided with adjusting stabilizer blade, the movable pulley and institute on the outside of the movable pulley Adjusting stabilizer blade is stated to be uniformly and symmetrically distributed below the bottom plate.
Preferably, the sieve diameter of first sieve is less than the sieve diameter of second sieve.
Preferably, second screen frame and the case weld, first screen frame and second screen frame and ground Tilt angle is 15 degree, in the same size, first screen frame and described second of first screen frame and second screen frame The shape of screen frame is rectangle.
Preferably, the first guide inclined plate and the second guide inclined plate are led with the case weld, described first The tilt angle for expecting inclined plate and the second guide inclined plate and ground is 15 degree.
Preferably, the third guide inclined plate and the case weld, the inclination angle of the third guide inclined plate and ground Degree is 20 degree.
Preferably, the outer support column and the inner spring is cylinder, and the quantity of the electric telescopic rod is 4 A, the electric telescopic rod is uniformly and symmetrically distributed above the bottom plate.
Preferably, the movable pulley and the quantity for adjusting stabilizer blade are 4, and the adjusting stabilizer blade and the bottom plate weld It connects.
Beneficial effect by adopting the above technical scheme is:
1, sand sieving machine is moved to after needing position, turns the entire length for adjusting stabilizer blade, enables sand sieving machine It smoothly fixes on the ground, the height of sand sieving machine can be adjusted by control electric telescopic rod work.
2, when sieve is husky, trolley is placed below the first aggregate bin and the second aggregate bin respectively, it is using auger that sand is defeated It send to feed hopper, sand is entered in shell by feed hopper, and the vibration of first the first sieve of driven by vibrating motors enters from feed hopper The sand of shell is fallen in above the first sieve, the vibration of the first sieve, so that the lesser sand of diameter falls in the by the first sieve It on one guide inclined plate, is then fallen into trolley by the first aggregate bin, due to the inclination of the first sieve, does not pass through the first sieve Sand slides on the second sieve, the vibration of second the second sieve of driven by vibrating motors, so that the sand being relatively large in diameter passes through second Sieve is fallen on the second guide inclined plate, is then fallen into trolley by the second aggregate bin, due to the inclination of the second sieve, is not passed through The sand of second sieve slides on third guide inclined plate, then flows out shell, during sieve is husky, when trolley is full, can control the One solenoid valve or second solenoid valve are closed, i.e., replaceable trolley, after more finishing changing trolley, control the first solenoid valve or second solenoid valve Opening does not need to close sand sieving machine, and sand falls in ground during can effectively avoid replacement trolley, improves the husky effect of sieve Rate reduces the labor intensity of staff.
3, in the sand sieving machine course of work, inner spring and outer spring can absorb the husky vibration generated in the process of sand sieving machine sieve, It plays a protective role to sand sieving machine, extends the service life of sand sieving machine.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of civil engineering multistratum classification sand sieving machine described in the utility model;
Fig. 2 is a kind of structural schematic diagram of civil engineering multistratum classification sand sieving machine described in the utility model;
Fig. 3 is a kind of main view of internal structure of civil engineering multistratum classification sand sieving machine described in the utility model;
Fig. 4 is a kind of local interior's structure amplification signal of civil engineering multistratum classification sand sieving machine described in the utility model Figure;
Fig. 5 is the main view enlarged drawing that stabilizer blade is adjusted in a kind of civil engineering multistratum classification sand sieving machine described in the utility model.
In figure: 1, shell;2, feed hopper;3, the first screen frame;4, the first sieve;5, the first vibrating motor;6, the first guide Inclined plate;7, the second screen frame;8, the second sieve;9, the second vibrating motor;10, the second guide inclined plate;11, third guide inclined plate;12, First aggregate bin;13, the second aggregate bin;14, the first solenoid valve;15, second solenoid valve;16, outer support column;17, inner spring; 18, inner support column;19, outer spring;20, electric telescopic rod;21, bottom plate;22, movable pulley;23, stabilizer blade is adjusted.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to shown in Fig. 1-5, the utility model provides a kind of technical solution: a kind of civil engineering multistratum classification sieve is husky Machine, including shell 1, feed hopper 2, the first sieve 4, the second sieve 8, are welded with feed hopper 2 above shell 1, feed hopper 2 into Material, the first screen frame 3 are welded on inside shell 1, and the first screen frame 3 passes through on the inside of the first screen frame 3 to support the first sieve 4 of installation Screw is fixedly installed with the first sieve 4, and the first sieve 4 is bolted below the first sieve 4 to sieve sand and is equipped with first Vibrating motor 5, the first vibrating motor 5 are provided with the first guide below the first vibrating motor 5 to drive the first sieve 4 to vibrate Inclined plate 6, the first guide inclined plate 6 are provided with the second screen frame 7 below first guide inclined plate 6, the second screen frame 7 is to pacify to training for sediment Dress the second sieve 8 of support, is mounted by means of screws with the second sieve 8 on the inside of the second screen frame 7, and the second sieve 8 is to sieve sand, and the It is bolted below two sieves 8 and second vibrating motor 9 is installed, the second vibrating motor 9 is to drive the second sieve 8 to shake It is dynamic, the second guide inclined plate 10 is provided with below the second vibrating motor 9, the second guide inclined plate 10 is to training for sediment, the second guide inclined plate 10 lower sections are provided with third guide inclined plate 11, and third guide inclined plate 11 is welded with the first aggregate bin to training for sediment, 1 side of shell 12, for the first aggregate bin 12 to collect husky, 1 other side of shell is welded with the second aggregate bin 13, and the second aggregate bin 13 is to collect husky, and the First solenoid valve 14 is installed below one aggregate bin 12, the first solenoid valve 14 goes out to control the sand drift in the first aggregate bin 12, Second solenoid valve 15 is installed, second solenoid valve 15 is to control the sand drift in the second aggregate bin 13 below second aggregate bin 13 Out, it is welded with outer support column 16 below shell 1, outer support column 16 is equipped with interior bullet inside outer support column 16 to supporing shell 1 Spring 17, inner spring 17 are equipped with inner support column 18 below inner spring 17, inner support column 18 is interior to support to absorb vibration Outer spring 19 is provided on the outside of support column 18, outer spring 19 is bolted peace below inner support column 18 to absorb vibration Equipped with electric telescopic rod 20, height of the electric telescopic rod 20 to adjust sand sieving machine, electric telescopic rod 20 is bolted peace Above bottom plate 21, for bottom plate 21 to support installation, movable pulley 22 is mounted by means of bolts on 21 lower section of bottom plate, movable pulley 22 is mobile to sand sieving machine, is provided on the outside of movable pulley 22 and adjusts stabilizer blade 23, adjusts stabilizer blade 23 to support sand sieving machine, by sieve sand Machine is steadily fixed, and movable pulley 22 and adjusting stabilizer blade 23 are uniformly and symmetrically distributed below bottom plate 21.
Preferably, less than the sieve diameter of the second sieve 8, the second screen frame 7 and shell 1 weld the sieve diameter of the first sieve 4 It connects, the first screen frame 3 and the second screen frame 7 and the tilt angle on ground are 15 degree, the size one of the first screen frame 3 and the second screen frame 7 It causes, the shape of the first screen frame 3 and the second screen frame 7 is rectangle, and the first guide inclined plate 6 and the second guide inclined plate 10 are and shell 1 welding, the first guide inclined plate 6 and the second guide inclined plate 10 and the tilt angle on ground are 15 degree, third guide inclined plate 11 with Shell 1 welds, and the tilt angle on third guide inclined plate 11 and ground is 20 degree, and outer support column 16 and inner spring 17 are cylinder Shape, the quantity of electric telescopic rod 20 are 4, and electric telescopic rod 20 is uniformly and symmetrically distributed above bottom plate 21, movable pulley 22 and tune The quantity for saving stabilizer blade 23 is 4, adjusts stabilizer blade 23 and bottom plate 21 welds.
Working principle: sand sieving machine being moved to after needing position, turns the entire length for adjusting stabilizer blade 23, so that sieve Husky machine can be fixed on the ground smoothly, can be adjusted by the control work of electric telescopic rod 20 to the height of sand sieving machine, When sieve is husky, trolley is placed on 13 lower section of the first aggregate bin 12 and the second aggregate bin respectively, using auger by sand be delivered into Hopper 2, sand are entered in shell 1 by feed hopper 2, and the first vibrating motor 5 drives the vibration of the first sieve 4, are entered from feed hopper 2 The sand of shell 1 falls in 4 top of the first sieve, the first sieve 4 vibration, so that the lesser sand of diameter is fallen by the first sieve 4 It on the first guide inclined plate 6, is then fallen into trolley by the first aggregate bin 12, due to the inclination of the first sieve 4, by the The sand of one sieve 4 slides on the second sieve 8, and the second vibrating motor 9 drives the vibration of the second sieve 8, so that be relatively large in diameter Sand is fallen on the second guide inclined plate 10 by the second sieve 8, is then fallen into trolley by the second aggregate bin 13, due to second The inclination of sieve 8 is not slid on third guide inclined plate 11 by the sand of the second sieve 8, then flows out shell 1, sieves husky mistake Cheng Zhong when trolley is full, can control the first solenoid valve 14 or second solenoid valve 15 to close, i.e., replaceable trolley, after more finishing changing trolley, It controls the first solenoid valve 14 or second solenoid valve 15 is opened, do not need to close sand sieving machine, can effectively avoid replacement trolley mistake Sand falls in ground in journey, improves the husky efficiency of sieve, reduces the labor intensity of staff, interior in the sand sieving machine course of work Spring 17 and outer spring 19 can absorb the husky vibration generated in the process of sand sieving machine sieve, play a protective role, extend to sand sieving machine The service life of sand sieving machine.
Shell 1, feed hopper 2, the first screen frame 3, the first sieve 4, first vibrating motor 5, the first guide of the utility model Inclined plate 6, the second screen frame 7, the second sieve 8, the second vibrating motor 9, the second guide inclined plate 10, third guide inclined plate 11, first collect Hopper 12, the second aggregate bin 13, the first solenoid valve 14, second solenoid valve 15, outer support column 16, inner spring 17, inner support column 18, Outer spring 19, electric telescopic rod 20, bottom plate 21, movable pulley 22, adjusting stabilizer blade 23 are universal standard part or those skilled in the art The component that member knows, structure and principle are all that this technology personnel can be learnt by technical manual or by routine experiment method Know.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims All changes are embraced therein, and should not treat any reference in the claims as limiting related right It is required that.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (7)

1. a kind of civil engineering multistratum classification sand sieving machine, it is characterised in that: including shell (1), feed hopper (2), the first sieve (4), the second sieve (8), shell (1) top are welded with the feed hopper (2), and the first screen frame (3) is welded on the shell (1) internal, first sieve (4), first sieve (4) are mounted by means of screws on the inside of first screen frame (3) Lower section, which is bolted, to be equipped with the first vibrating motor (5), and it is oblique to be provided with the first guide below first vibrating motor (5) Plate (6), the first guide inclined plate (6) lower section is provided with the second screen frame (7), solid by screw on the inside of second screen frame (7) Dingan County is equipped with second sieve (8), is bolted below second sieve (8) and is equipped with the second vibrating motor (9), It is provided with the second guide inclined plate (10) below second vibrating motor (9), is provided with below the second guide inclined plate (10) Third guide inclined plate (11), shell (1) side are welded with the first aggregate bin (12), and shell (1) other side is welded with Second aggregate bin (13), the first aggregate bin (12) lower section are equipped with the first solenoid valve (14), second aggregate bin (13) Lower section is equipped with second solenoid valve (15), is welded with outer support column (16) below the shell (1), in the outer support column (16) Portion is equipped with inner spring (17), is equipped with inner support column (18) below the inner spring (17), on the outside of the inner support column (18) It is provided with outer spring (19), is bolted below the inner support column (18) and electric telescopic rod (20), the electricity are installed Dynamic telescopic rod (20) are mounted by means of bolts on above bottom plate (21), and movable pulley (22) is mounted by means of bolts on the bottom Below plate (21), it is provided on the outside of the movable pulley (22) and adjusts stabilizer blade (23), the movable pulley (22) and the adjusting stabilizer blade (23) it is uniformly and symmetrically distributed below the bottom plate (21).
2. a kind of civil engineering multistratum classification sand sieving machine according to claim 1, it is characterised in that: first sieve (4) sieve diameter is less than the sieve diameter of second sieve (8).
3. a kind of civil engineering multistratum classification sand sieving machine according to claim 1, it is characterised in that: second screen frame (7) it is welded with the shell (1), first screen frame (3) and second screen frame (7) and the tilt angle on ground are 15 Degree, in the same size, first screen frame (3) and second screen frame of first screen frame (3) and second screen frame (7) (7) shape is rectangle.
4. a kind of civil engineering multistratum classification sand sieving machine according to claim 1, it is characterised in that: first guide is oblique Plate (6) and the second guide inclined plate (10) are welded with the shell (1), the first guide inclined plate (6) and described second The tilt angle on guide inclined plate (10) and ground is 15 degree.
5. a kind of civil engineering multistratum classification sand sieving machine according to claim 1, it is characterised in that: the third guide is oblique Plate (11) and the shell (1) are welded, and the tilt angle on the third guide inclined plate (11) and ground is 20 degree.
6. a kind of civil engineering multistratum classification sand sieving machine according to claim 1, it is characterised in that: the outer support column (16) and the inner spring (17) is cylinder, and the quantity of the electric telescopic rod (20) is 4, the electric telescopic rod (20) it is uniformly and symmetrically distributed above the bottom plate (21).
7. a kind of civil engineering multistratum classification sand sieving machine according to claim 1, it is characterised in that: the movable pulley (22) It is 4 with the quantity for adjusting stabilizer blade (23), the adjusting stabilizer blade (23) and the bottom plate (21) are welded.
CN201920257184.8U 2019-03-01 2019-03-01 A kind of civil engineering multistratum classification sand sieving machine Expired - Fee Related CN209697434U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920257184.8U CN209697434U (en) 2019-03-01 2019-03-01 A kind of civil engineering multistratum classification sand sieving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920257184.8U CN209697434U (en) 2019-03-01 2019-03-01 A kind of civil engineering multistratum classification sand sieving machine

Publications (1)

Publication Number Publication Date
CN209697434U true CN209697434U (en) 2019-11-29

Family

ID=68644581

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920257184.8U Expired - Fee Related CN209697434U (en) 2019-03-01 2019-03-01 A kind of civil engineering multistratum classification sand sieving machine

Country Status (1)

Country Link
CN (1) CN209697434U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111185372A (en) * 2020-03-09 2020-05-22 程志求 Grit screening installation for building engineering
CN112570281A (en) * 2020-11-26 2021-03-30 陈益 Concrete aggregate production is with hierarchical screening installation
CN112620086A (en) * 2020-12-29 2021-04-09 李淑敏 Screening sand device for building engineering

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111185372A (en) * 2020-03-09 2020-05-22 程志求 Grit screening installation for building engineering
CN112570281A (en) * 2020-11-26 2021-03-30 陈益 Concrete aggregate production is with hierarchical screening installation
CN112570281B (en) * 2020-11-26 2022-06-21 利川市中远商砼有限责任公司 Concrete aggregate production is with hierarchical screening installation
CN112620086A (en) * 2020-12-29 2021-04-09 李淑敏 Screening sand device for building engineering

Similar Documents

Publication Publication Date Title
CN209697434U (en) A kind of civil engineering multistratum classification sand sieving machine
CN103464376A (en) Automatic rice screener and rice screening method
CN206778930U (en) A kind of flour processing raw material cleaning device
CN105903677B (en) A kind of double screen banks of packaged type close dressing machine
CN205463132U (en) Vibration plane dressing sieve is used to system face
CN205341268U (en) Electronic mesh screen separator of multilayer
CN208288409U (en) It is a kind of for making the separator of water-atomized iron powder
CN109859908B (en) Crushed aggregates separator
CN208879059U (en) Screening plant is used in a kind of processing of biomass fuel pellet
CN207071511U (en) A kind of vibratory sieve
CN208810561U (en) A kind of rice finished product is cracked rice grading plant
CN114273070A (en) Intelligent control shaking table system for mineral separation
CN205110082U (en) Production of ginger powder is with shale shaker of adjustable sieve gradient
CN209093851U (en) A kind of vibrating screen
CN209866622U (en) Multistage classified vibration screening machine that refines
CN110575960B (en) Waste electric wire recovery device
CN206392388U (en) A kind of pair of casing vibratory material screening machinery
CN207887531U (en) A kind of grading plant of silicon carbide micro-powder
CN207770270U (en) A kind of adjustable high-frequency vibrating screen
CN208712203U (en) A kind of mineral processing material screening elevator
CN207308344U (en) A kind of grain screening plant
JP3058398U (en) Tea leaf sieving device
CN220804318U (en) High-frequency tailing sand vibrating screen
CN204656957U (en) A kind of breeze impurity separating device
CN214766798U (en) A sieve material device for prescreening monosodium glutamate

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191129

Termination date: 20200301

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