CN209076269U - A kind of monomer pulsed exhaust dust device with bag - Google Patents

A kind of monomer pulsed exhaust dust device with bag Download PDF

Info

Publication number
CN209076269U
CN209076269U CN201821858957.XU CN201821858957U CN209076269U CN 209076269 U CN209076269 U CN 209076269U CN 201821858957 U CN201821858957 U CN 201821858957U CN 209076269 U CN209076269 U CN 209076269U
Authority
CN
China
Prior art keywords
fixedly connected
protective shell
dust
suction tube
filter cloth
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
CN201821858957.XU
Other languages
Chinese (zh)
Inventor
毋永才
申培
侯成舟
赵青涛
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.)
Henan Longchang Environmental Protection Technology Co Ltd
Original Assignee
Henan Longchang Environmental Protection 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 Henan Longchang Environmental Protection Technology Co Ltd filed Critical Henan Longchang Environmental Protection Technology Co Ltd
Priority to CN201821858957.XU priority Critical patent/CN209076269U/en
Application granted granted Critical
Publication of CN209076269U publication Critical patent/CN209076269U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of monomer pulsed exhausts dust device with bag; including protective shell; the left side of protective shell is fixedly connected inserted with funnel suction tube, the surface of funnel suction tube with the left plate of protective shell, and the right side that funnel suction tube is located inside protective shell is fixedly connected with fixes sleeve.The monomer pulsed exhaust dust device with bag, pass through the rotation of swingle, its funnel suction tube is set to be in closed state, then backward erosion is carried out to its dust filter cloth bag by pulser again, make its dust filter cloth bag flatulence, and pass through atmospheric pressure principle, the dust for being blocked in dust filter cloth bag is blown off, then rotation axis rotation is driven by small-sized rotary electric machine again, then beating plate is driven ceaselessly to pat the dust filter cloth bag of its flatulence, the more thorough effect for falling the dust on its dust filter cloth bag surface, then its dust is released out of dust case by push plate again, avoid the need for the effect for often replacing dust filter cloth bag.

Description

A kind of monomer pulsed exhaust dust device with bag
Technical field
The utility model relates to bag-type dust collecting equipment technical field, specially a kind of monomer pulsed exhaust dust device with bag.
Background technique
Deduster is equipment that dust is separated from flue gas deduster or cleaner, and the performance of deduster is used Drag losses and efficiency of dust collection when accessible gas flow, gas are by deduster are expressed, meanwhile, the price of deduster, The difficulty or ease of operation and maintenance cost, service life length and operational administrative are also an important factor for considering its performance, and deduster is Common facility in boiler and industrial production.
Currently, existing industrial dust precipitator is typically all to pass through Filter-screen bag to isolate its dust, in its air Gas play the purpose of dedusting, but since dust can be got lodged in filter mesh, need to be replaced frequently new filtering mesh bag, this Sample causes certain trouble to enterprise.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of monomer pulsed exhaust dust device with bag, solves Existing industrial dust precipitator is since dust can be got lodged in filter mesh, the problem of needing to be replaced frequently new filtering mesh bag.
To achieve the above object, the utility model provides the following technical solutions:
A kind of monomer pulsed exhaust dust device with bag, including protective shell, the left side of the protective shell inserted with funnel suction tube, The surface of the funnel suction tube is fixedly connected with the left plate of protective shell, and it is solid that the funnel suction tube is located at the right side inside protective shell Surely it is connected with fixes sleeve, the inside of the fixes sleeve is connected to the inside of funnel suction tube, is passed through on the left of the funnel suction tube It is installed with swingle, the inside of the right side insertion fixes sleeve of the swingle, the right side of the swingle and fixes sleeve right side Inner wall rotation connection, the right side opening of the fixes sleeve sets there are two aspiration openings, the top and bottom on the swingle surface Portion is fixedly connected to sealing plate, and the right side of the sealing plate is contacted with fixes sleeve right side wall, and the top of the protective shell is solid Surely it is connected with small-sized rotary electric machine, is fixedly connected at the top of the output shaft and rotation axis of the small-sized rotary electric machine, the rotation The inside of the bottom insertion protective shell of axis, the bottom of the rotation axis are fixedly connected with the bottom of protective shell inner cavity, the rotation It is fixedly connected with beating plate on the left of axis, pulser, the air inlet pipe of the pulser are fixedly installed at the top of the protective shell It is fixedly connected at the top of communicating pipe, the inside of the bottom insertion protective shell of the communicating pipe, the right side of the protective shell is fixed Bleed motor is installed, the exhaust tube of the bleed motor is inserted into the inside of protective shell, connects inside the internal and right side of supervisor Logical, the right side of the supervisor is fixedly connected with the inside of protective shell, and the inside of the supervisor is connected to the inside of communicating pipe, described The surface screw thread of supervisor is socketed with thread bush axis, and the surface fixing sleeve of the thread bush axis is connected to dust filter cloth bag, the guarantor The bottom of protective case is fixedly connected with dust case, and pull lever, the pulling have been slidably inserted on the right side of the dust case Push plate is fixedly connected on the left of bar, the surface fixing sleeve of the pull lever is connected to drive plate, and the left side with movable plate is fixed It is connected with pulling force rubber band, the left side of the dust case is fixedly connected with axis on the right side of the threaded rod inserted with threaded rod Cartridge is fixedly connected on the left of the right side of the bearing sleeve and pulling force rubber band, and the right side opening of the dust case is equipped with Sealing is opened the door.
Preferably, the surface fixing sleeve of the funnel suction tube is connected to sealing and reinforcing sleeve, the right side of the sealing and reinforcing sleeve It is fixedly connected on the left of side and protective shell.
Preferably, twisting cap is fixedly connected on the left of the swingle.
Preferably, the bottom of the push plate, which is fixedly connected with, scrapes motion block, in the bottom for scraping motion block and dust case The basal sliding of chamber contacts, and is fixedly connected with pull handle on the right side of the pull lever.
Preferably, twisting nut is fixedly connected on the left of the threaded rod, the right side that the sealing is opened the door is fixedly connected There is ring-shaped handle.
The utility model provides a kind of monomer pulsed exhaust dust device with bag.Have it is following the utility model has the advantages that
(1), the monomer pulsed exhaust dust device with bag, by the setting of fixes sleeve and swingle, aspiration openings, Sealing plate, rotation axis, beating plate, supervisor, thread bush axis, communicating pipe, pulser, dust case, pulls small-sized rotary electric machine Bar, push plate, being used cooperatively with movable plate, pulling force rubber band, bearing sleeve and threaded rod are turned to play by swingle It is dynamic, so that its funnel suction tube is in closed state, backward erosion is then carried out to its dust filter cloth bag by pulser again, makes it Dust filter cloth bag flatulence, and by atmospheric pressure principle, the dust for being blocked in dust filter cloth bag blows off, then leads to again It crosses small-sized rotary electric machine and drives rotation axis rotation, then beating plate is driven ceaselessly to pat the dust filter cloth bag of its flatulence, Then the more thorough effect for falling the dust on its dust filter cloth bag surface is again stored its dust from dust by push plate It is released in box, avoids the need for the effect for often replacing dust filter cloth bag.
Detailed description of the invention
Fig. 1 is the utility model structure front schematic internal view;
Fig. 2 is internal enlarged diagram at the A of the utility model structure chart 1;
Fig. 3 is enlarged diagram at the B of the utility model structure chart 1;
Fig. 4 is the inside enlarged diagram of the utility model structure chart 3.
In figure: 1, protective shell;2, funnel suction tube;3, sealing and reinforcing sleeve;4, fixes sleeve;5, swingle;6, air-breathing is opened Mouthful;7, sealing plate;8, cap is twisted;9, small-sized rotary electric machine;10, rotation axis;11, beating plate;12, bleed motor;13, it is responsible for; 14, thread bush axis;15, dust filter cloth bag;16, communicating pipe;17, pulser;18, dust case;19, pull lever;20, it draws Dynamic handle;21, push plate;22, motion block is scraped;23, band movable plate;24, pulling force rubber band;25, bearing sleeve;26, threaded rod;27, it twists Nut;28, sealing is opened the door;29, ring-shaped handle.
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.
As shown in Figs 1-4, the utility model provides a kind of technical solution: a kind of monomer pulsed exhaust dust device with bag, packet Protective shell 1 is included, the left side of protective shell 1 is inserted with funnel suction tube 2, the surface of funnel suction tube 2 and the fixed company of the left plate of protective shell 1 It connects, the surface fixing sleeve of funnel suction tube 2 is connected to sealing and reinforcing sleeve 3, the right side of sealing and reinforcing sleeve 3 and the left side of protective shell 1 It is fixedly connected, by the setting of sealing and reinforcing sleeve 3, to play the airtightness for strengthening funnel suction tube 2 and protective shell 1 Effect, the right side that funnel suction tube 2 is located inside protective shell 1 are fixedly connected with fixes sleeve 4, the inside of fixes sleeve 4 and funnel The inside of suction tube 2 is connected to, and through there is swingle 5, the interior of fixes sleeve 4 is inserted on the right side of swingle 5 in the left side of funnel suction tube 2 The inner wall in portion, 4 right side of right side and fixes sleeve of swingle 5 is rotatablely connected, and the right side opening of fixes sleeve 4 is set to be opened there are two air-breathing Mouthfuls 6, sealing plate 7, the right side of sealing plate 7 and 4 right side wall of fixes sleeve are fixedly connected at the top and bottom of 5 surface of swingle Contact, the left side of swingle 5 are fixedly connected with twisting cap 8, by twisting the setting of cap 8, to play convenient for rotation rotation The effect of bar 5, the top of protective shell 1 are fixedly connected with small-sized rotary electric machine 9, the output shaft and rotation axis of small-sized rotary electric machine 9 10 top is fixedly connected, the inside of the bottom insertion protective shell 1 of rotation axis 10, the bottom and 1 inner cavity of protective shell of rotation axis 10 Bottom be fixedly connected, the left side of rotation axis 10 is fixedly connected with beating plate 11, and the top of protective shell 1 is fixedly installed with pulser 17, the air inlet pipe of pulser 17 is fixedly connected with the top of communicating pipe 16, the inside of the bottom insertion protective shell 1 of communicating pipe 16, The right side of protective shell 1 is fixedly installed with bleed motor 12, and the exhaust tube of bleed motor 12 is inserted into the inside of protective shell 1, inside Be connected to inside the right side of supervisor 13, be responsible for 13 right side and be fixedly connected with the inside of protective shell 1, be responsible for 13 inside be connected to The inside of pipe 16 is connected to, and the surface screw thread for being responsible for 13 is socketed with thread bush axis 14, and the surface fixing sleeve of thread bush axis 14 is connected to ash Dirt filter cloth bag 15, the bottom of protective shell 1 are fixedly connected with dust case 18, and the right side of dust case 18 has been slidably inserted into Pull lever 19, the right side of pull lever 19 are fixedly connected with pull handle 20, by the setting of pull handle 20, to play just In the effect of displacement pull lever 19, the left side of pull lever 19 is fixedly connected with push plate 21, and the bottom of push plate 21, which is fixedly connected with, scrapes Motion block 22, the bottom for scraping motion block 22 is contacted with the basal sliding of 18 inner cavity of dust case, by scraping the setting of motion block 22, thus The more thorough effect to the dust cleaning fallen is played, the surface fixing sleeve of pull lever 19, which is connected to, drives plate 23, band movable plate 23 left side is fixedly connected with pulling force rubber band 24, and the left side of dust case 18 is inserted with threaded rod 26, the right side of threaded rod 26 It is fixedly connected with bearing sleeve 25, the right side of bearing sleeve 25 is fixedly connected with the left side of pulling force rubber band 24, a left side for threaded rod 26 Side is fixedly connected with twisting nut 27, by twisting the setting of nut 27, thus play convenient for the effect of rotation threaded rod 26, The right side opening of dust case 18 is equipped with sealing enabling 28, and the right side of sealing enabling 28 is fixedly connected with ring-shaped handle 29, passes through The setting of ring-shaped handle 29, to play the effect convenient for pulling sealing enabling 28.
In use, using atmospheric pressure, making its leakage to depressurizing inside its protective shell 1 by bleed motor 12 first The gas that dust is had in air is sucked into inside protective shell 1 by bucket suction tube 2, then again by dust filter cloth bag 15 to its sky Dust in gas is isolated, its dust is made to be adsorbed on the outer surface of dust filter cloth bag 15, and part dust is fallen due to gravity To dust case 18, when the dust for needing to clear up the blocking of 15 surface of dust filter cloth bag, when more effective in order to dedusting, Rotation twisting cap 8, drives swingle 5 to rotate, carries out its sealing plate 7 to two aspiration openings 6 in its fixes sleeve 4 It blocks, its funnel suction tube 2 is made to be in closed state, reversed gas is then carried out to its dust filter cloth bag 15 by pulser 17 again Body high strength washes away, and makes its 15 flatulence of dust filter cloth bag, and by atmospheric pressure principle, is blocked in dust filter cloth bag The dust of 15 outer surfaces is blown off, and drives rotation axis 10 to rotate by small-sized rotary electric machine 9 simultaneously, then drives beating plate 11 right The dust filter cloth bag 15 of its flatulence is ceaselessly patted, the more thorough effect for falling the dust on its 15 surface of dust filter cloth bag Fruit then drives push plate 21 to be displaced to the right then again by pulling pull handle 20 to the right by pull lever 19, by its ash Dirt is pushed into then to unclamp again the active force of pull handle 20 from sealing enabling 28 out of dust case 18, due to pulling force rubber band 24 Elastic acting force, drive 21 return of push plate, in order to clear up dust, when needing to adjust the elastic acting force of pulling force rubber band, That is rotation twisting nut 27, can change the elastic reactance for pulling pull handle 20, while not make in this specification in detail The content of description belongs to the prior art well known to professional and technical personnel in the field.
It can to sum up obtain, the monomer pulsed exhaust dust device with bag, by the setting of fixes sleeve 4 and swingle 5, inhale Gas opening 6, sealing plate 7, small-sized rotary electric machine 9, rotation axis 10, beating plate 11, supervisor 13, thread bush axis 14, communicating pipe 16, arteries and veins Rush device 17, dust case 18, pull lever 19, push plate 21, band movable plate 23, pulling force rubber band 24, bearing sleeve 25 and threaded rod 26 Be used cooperatively, to play the rotation by swingle 5, so that its funnel suction tube 2 is in closed state, then pass through arteries and veins again It rushes device 17 and backward erosion is carried out to its dust filter cloth bag 15, make its 15 flatulence of dust filter cloth bag, and pass through atmospheric pressure original Reason, the dust for being blocked in dust filter cloth bag 15 are blown off, and then drive 10 turns of rotation axis by small-sized rotary electric machine 9 again It is dynamic, then beating plate 11 is driven ceaselessly to pat the dust filter cloth bag 15 of its flatulence, makes its 15 surface of dust filter cloth bag The more thorough effect that falls of dust, its dust is released by push plate 21 again out of dust case 18 then, is avoided Need to be replaced frequently the effect of dust filter cloth bag 15.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of monomer pulsed exhaust dust device with bag, including protective shell (1), it is characterised in that: the left side of the protective shell (1) Inserted with funnel suction tube (2), the surface of the funnel suction tube (2) is fixedly connected with the left plate of protective shell (1), and the funnel is inhaled Cylinder (2) is located at the internal right side of protective shell (1) and is fixedly connected with fixes sleeve (4), the inside of the fixes sleeve (4) and funnel The inside of suction tube (2) is connected to, and through having swingle (5), the right side of the swingle (5) is inserted in the left side of the funnel suction tube (2) Enter the inside of fixes sleeve (4), the right side of the swingle (5) and the inner wall on the right side of fixes sleeve (4) are rotatablely connected, described solid The right side opening for determining sleeve (4) is set there are two aspiration openings (6), is fixedly connected at the top and bottom of swingle (5) surface Have sealing plate (7), the right side of the sealing plate (7) is contacted with fixes sleeve (4) right side wall, and the top of the protective shell (1) is solid Surely it is connected with small-sized rotary electric machine (9), the fixed company of the output shaft of the small-sized rotary electric machine (9) and the top of rotation axis (10) It connects, the inside of bottom insertion protective shell (1) of the rotation axis (10), in the bottom and protective shell (1) of the rotation axis (10) The bottom of chamber is fixedly connected, and is fixedly connected with beating plate (11) on the left of the rotation axis (10), the top of the protective shell (1) It is fixedly installed with pulser (17), is fixedly connected at the top of the air inlet pipe of the pulser (17) and communicating pipe (16), the company The inside of protective shell (1) is inserted into the bottom of siphunculus (16), is fixedly installed with bleed motor (12) on the right side of the protective shell (1), The inside of exhaust tube insertion protective shell (1) of the bleed motor (12), internal to be connected to the right side of supervisor (13) inside, institute The right side for stating supervisor (13) is fixedly connected with the inside of protective shell (1), and the inside for being responsible for (13) is interior with communicating pipe (16) The surface screw thread of portion's connection, the supervisor (13) is socketed with thread bush axis (14), the surface fixing sleeve of the thread bush axis (14) It is connected to dust filter cloth bag (15), the bottom of the protective shell (1) is fixedly connected with dust case (18), the dust storage It has been slidably inserted on the right side of box (18) pull lever (19), has been fixedly connected with push plate (21) on the left of the pull lever (19), it is described The surface fixing sleeve of pull lever (19), which is connected to, drives plate (23), is fixedly connected with pulling force rubber band on the left of the band movable plate (23) (24), the left side of the dust case (18) is fixedly connected with inserted with threaded rod (26) on the right side of the threaded rod (26) Bearing sleeve (25) is fixedly connected on the left of the right side and pulling force rubber band (24) of the bearing sleeve (25), the dust storage The right side opening of box (18) is equipped with sealing and opens the door (28).
2. a kind of monomer pulsed exhaust dust device with bag according to claim 1, it is characterised in that: the funnel suction tube (2) surface fixing sleeve is connected to sealing and reinforcing sleeve (3), the right side of the sealing and reinforcing sleeve (3) and the left side of protective shell (1) It is fixedly connected.
3. a kind of monomer pulsed exhaust dust device with bag according to claim 1, it is characterised in that: the swingle (5) Left side be fixedly connected with twisting cap (8).
4. a kind of monomer pulsed exhaust dust device with bag according to claim 1, it is characterised in that: the push plate (21) Bottom, which is fixedly connected with, scrapes motion block (22), and the basal sliding of the bottom for scraping motion block (22) and dust case (18) inner cavity connects It touches, is fixedly connected with pull handle (20) on the right side of the pull lever (19).
5. a kind of monomer pulsed exhaust dust device with bag according to claim 1, it is characterised in that: the threaded rod (26) Left side be fixedly connected with twisting nut (27), be fixedly connected with ring-shaped handle (29) on the right side of sealing enabling (28).
CN201821858957.XU 2018-11-13 2018-11-13 A kind of monomer pulsed exhaust dust device with bag Expired - Fee Related CN209076269U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821858957.XU CN209076269U (en) 2018-11-13 2018-11-13 A kind of monomer pulsed exhaust dust device with bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821858957.XU CN209076269U (en) 2018-11-13 2018-11-13 A kind of monomer pulsed exhaust dust device with bag

Publications (1)

Publication Number Publication Date
CN209076269U true CN209076269U (en) 2019-07-09

Family

ID=67123659

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821858957.XU Expired - Fee Related CN209076269U (en) 2018-11-13 2018-11-13 A kind of monomer pulsed exhaust dust device with bag

Country Status (1)

Country Link
CN (1) CN209076269U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111905564A (en) * 2020-07-14 2020-11-10 来安县华阳玻璃制品有限公司 Efficient glass factory waste gas denitration device
CN114484861A (en) * 2022-02-10 2022-05-13 中国建筑东北设计研究院有限公司 Building heating device
CN114887405A (en) * 2022-05-13 2022-08-12 齐齐哈尔市茂尔农业有限公司 Cleaning structure and cleaning method for potassium sulfate processing dust remover

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111905564A (en) * 2020-07-14 2020-11-10 来安县华阳玻璃制品有限公司 Efficient glass factory waste gas denitration device
CN114484861A (en) * 2022-02-10 2022-05-13 中国建筑东北设计研究院有限公司 Building heating device
CN114484861B (en) * 2022-02-10 2023-07-25 中国建筑东北设计研究院有限公司 Building heating device that leads to warmly
CN114887405A (en) * 2022-05-13 2022-08-12 齐齐哈尔市茂尔农业有限公司 Cleaning structure and cleaning method for potassium sulfate processing dust remover

Similar Documents

Publication Publication Date Title
CN209076269U (en) A kind of monomer pulsed exhaust dust device with bag
CN208356353U (en) A kind of dust collecting mechanism of box deduster
CN109173532A (en) A kind of electric automatization cleaner
CN208727017U (en) A kind of air compressor filtering core cleaning assembly
CN109894743A (en) A kind of laser cutting machine tool dust-extraction unit
CN208786014U (en) A kind of weaving dust removal device with waste recovery function
CN107716450B (en) A kind of drifting dust dust collection mechanism of mold
CN213823933U (en) Novel low-pressure-drop dust remover
CN213102700U (en) Electric dust collector capable of automatically cleaning ash
CN209302458U (en) A kind of pulsed exhaust gas purification and treatment device
CN108755537A (en) A kind of refuse collector
CN115318033B (en) Dispersed particle separation environmental protection equipment of dry-type cleaning machine
CN208104733U (en) A kind of industrial sewing machine negative pressure suction wadding device
CN203702040U (en) Drill dust collector capable of cleaning filter elements automatically
CN215692659U (en) Filter device for smoke dust sampler
CN112237818B (en) Comprehensive treatment device for dust-containing waste gas
CN208871698U (en) A kind of cleaning plant of point of smoke machine smoking pipeline
CN115121060A (en) Pipeline filtration ventilation equipment with waste gas high-efficiency processing function
CN203458917U (en) Bag type dust collector
CN210522051U (en) Wet dust collector's antiseized nature smoke and dust blocks up pipeline structure
CN211133315U (en) Pulse dust collector
CN211587789U (en) Ash removal device for electrical automation equipment
CN208777239U (en) A kind of refuse collector
CN208628037U (en) A kind of deduster with removing cylinder inboard wall attachment function
CN208229565U (en) A kind of novel polishing deduster

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: 20190709

Termination date: 20211113

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