CN211204746U - Environment-friendly double-cylinder dryer with damping effect - Google Patents

Environment-friendly double-cylinder dryer with damping effect Download PDF

Info

Publication number
CN211204746U
CN211204746U CN201921700036.5U CN201921700036U CN211204746U CN 211204746 U CN211204746 U CN 211204746U CN 201921700036 U CN201921700036 U CN 201921700036U CN 211204746 U CN211204746 U CN 211204746U
Authority
CN
China
Prior art keywords
fixedly connected
magnet
base
supporting plate
shock absorber
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
CN201921700036.5U
Other languages
Chinese (zh)
Inventor
郑翔
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.)
Yancheng Tianchen New Building Material Co ltd
Original Assignee
Yancheng Tianchen New Building Material 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 Yancheng Tianchen New Building Material Co ltd filed Critical Yancheng Tianchen New Building Material Co ltd
Priority to CN201921700036.5U priority Critical patent/CN211204746U/en
Application granted granted Critical
Publication of CN211204746U publication Critical patent/CN211204746U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Drying Of Solid Materials (AREA)

Abstract

The utility model discloses an environmental protection type double-cylinder drying-machine with cushioning effect, including the urceolus, layer board and bumper shock absorber body, the upper portion fixedly connected with layer board of the bearing plate in the bumper shock absorber body, the layer board rotates through pivot and riding wheel to be connected, the urceolus rotates through wheel area and riding wheel to be connected, the lower part fixedly connected with connecting plate and the silica gel stick of bearing plate, the first magnet of lower part fixedly connected with and the flexible post of connecting plate, the outside cover of flexible post is equipped with compression spring, the lower part and the base fixed connection of flexible post, fixedly connected with second magnet on the base, the protective housing is gone up to the lower part fixedly connected with of bearing plate, fixedly connected with lower protective housing on the base. The utility model provides a traditional two-drum dryer do not possess the shock attenuation effect, can produce the vibration when the operation, make the work place produce very harsh noise, and then can cause very serious influence to workman's hearing, simultaneously because the vibration of strong high frequency makes the problem that the other equipment life in work place reduces.

Description

Environment-friendly double-cylinder dryer with damping effect
Technical Field
The utility model relates to a two section of thick bamboo drying-machines technical field specifically is a two section of thick bamboo drying-machines of environmental protection formula with cushioning effect.
Background
The double-cylinder dryer is a direct rotary dryer, mainly composed of inner cylinder, outer cylinder, riding wheel, wheel belt, motor and speed reducer, and features high heat efficiency, obvious energy-saving effect, wide application range, and being suitable for drying clay, coal, slag, iron powder and other raw materials.
However, the conventional dual drum dryer has the following disadvantages: traditional double-cylinder drying-machine does not possess the shock attenuation effect, can produce the vibration when the operation, makes the work place produce very harsh noise, and then can cause very serious influence to workman's hearing, simultaneously because the vibration of strong high frequency makes the other equipment life in work place reduce.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides an environmental protection type double-cylinder drying-machine with cushioning effect has solved traditional double-cylinder drying-machine and has not possessed the shock attenuation effect, can produce the vibration when the operation, makes the work place produce very harsh noise, and then can cause very serious influence to workman's hearing, simultaneously because the vibration of strong high frequency makes the problem that the other equipment life in work place reduces.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: an environment-friendly double-drum dryer with a damping effect comprises an outer drum, a supporting plate and a damper body, wherein a wheel belt is fixedly connected to the outer drum, the supporting plate is fixedly connected to the upper portion of a supporting plate in the damper body, the supporting plate is rotatably connected with a supporting wheel through a rotating shaft, the outer drum is rotatably connected with the supporting wheel through the wheel belt, the damper body comprises a first magnet, a supporting plate, a connecting plate, a silica gel rod, a telescopic column, a second magnet, a handle, a base, a jack, a compression spring, an upper protective shell, a lower protective shell, a press switch, a light-emitting diode, a buzzer, a battery compartment and a power line, the connecting plate and the silica gel rod are fixedly connected to the lower portion of the supporting plate, the first magnet and the telescopic column are fixedly connected to the lower portion of the connecting plate, the compression spring is sleeved outside the telescopic column, and the lower portion, the base is fixedly connected with a second magnet, the lower portion of the supporting plate is fixedly connected with an upper protective shell, the base is fixedly connected with a lower protective shell, the right side of the base is provided with a press switch, a light-emitting diode, a buzzer and a battery compartment, the press switch is electrically connected with the buzzer and the battery compartment through power lines, the battery compartment is electrically connected with the light-emitting diode through the power lines, and the base is provided with a jack and a handle.
Preferably, the second magnet is arranged below the first magnet, the second magnet is perpendicular to the first magnet, the push switch is arranged below the silica gel rod, and the push switch is perpendicular to the silica gel rod.
Preferably, the outer cylinder is fixedly connected with the inner cylinder through a connecting column, and the inner wall of the inner cylinder is fixedly connected with a material raising plate.
Preferably, the support plate is fixedly connected with a motor and a speed reducer, an output shaft of the motor is fixedly connected with a differential gear inside the speed reducer, and an output shaft of the speed reducer is rotatably connected with a rotating shaft of the riding wheel through a coupler.
Preferably, this internal flexible post and the compression spring that sets up of bumper shock absorber are a set of, flexible post and the total nine sets of compression spring, and flexible post and compression spring are the rectangular array, this internal jack that sets up of bumper shock absorber is four, and the jack is the rectangular array.
Preferably, the upper protective shell and the lower protective shell are both rectangular, the size of the inner wall of the upper protective shell is matched with the size of the outer wall of the lower protective shell, and the upper protective shell is connected with the lower protective shell in a sleeved mode.
(III) advantageous effects
The utility model provides an environmental protection type double-cylinder drying-machine with cushioning effect possesses following beneficial effect:
the utility model can eliminate the vibration generated by the operation of the double-cylinder dryer through the arranged damper body, simultaneously solves the problem of serious noise generated by vibration, the vibration generated during the operation of the double-cylinder dryer is transmitted to the connecting plate through the supporting plate, the connecting plate eliminates the vibration through the elasticity of the compression spring and the buoyancy generated by the first magnet and the second magnet, simultaneously, the damper body also has the self-checking function, when the compression spring and the first magnet and the second magnet are damaged, the gravity is pressed on the supporting plate by the part loaded on the upper part of the supporting plate, the supporting plate drives the silica gel rod to move downwards, the silica gel rod can press the press switch downwards when the silica gel rod moves downwards to the designated position, the upper protective shell arranged on the supporting plate is in complete contact with the base after the silica gel rod presses the press switch, and further, the supporting plate is not moved downwards, meanwhile, after the press switch is pressed by the silica gel stick, the press switch transmits the electric power in the battery compartment to the buzzer through the power line, the buzzer sends out an alarm to remind a maintainer to overhaul the shock absorber body, and the jack is arranged in the shock absorber body to ensure that the shock absorber body has the advantage of convenient overhaul, when in overhaul, the handle on the base is pressed, the jack is driven by hydraulic oil in the base, the supporting plate is jacked up by the jack, after the maintenance is finished, the jack is reset through the handle, and the utility model solves the problems that the traditional double-cylinder drying machine has no damping effect, can generate vibration during operation, generate very harsh noise on a working site, further cause very serious influence on the hearing of workers, meanwhile, the service life of other equipment of the working site is reduced due to the strong high-frequency vibration.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic view of the internal structure of the shock absorber body of the present invention;
FIG. 4 is a schematic view of the damper body according to the present invention;
fig. 5 is a schematic structural diagram of a push switch, a buzzer, a battery compartment and a light emitting diode at a position a in fig. 3 according to the present invention.
The reference numbers in the figures are: 1. an outer cylinder; 2. a belt wheel; 3. a support plate; 4. a speed reducer; 5. a damper body; 6. a motor; 7. a coupling; 8. a riding wheel; 9. connecting columns; 10. a rotating shaft; 11. an inner barrel; 12. a material raising plate; 13. a first magnet; 14. a support plate; 15. a connecting plate; 16. a silica gel rod; 17. a telescopic column; 18. a second magnet; 19. a handle; 20. a base; 21. a jack; 22. a compression spring; 23. an upper protective shell; 24. a lower protective shell; 25. a push switch; 26. a buzzer; 27. a battery compartment; 28. a light emitting diode; 29. a power line.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention is shown; an environment-friendly double-drum dryer with a damping effect comprises an outer drum 1, a supporting plate 3 and a damper body 5, wherein a wheel belt 2 is fixedly connected to the outer drum 1, the supporting plate 3 is fixedly connected to the upper portion of a supporting plate 14 in the damper body 5, the supporting plate 3 is rotatably connected with a supporting wheel 8 through a rotating shaft 10, the outer drum 1 is rotatably connected with the supporting wheel 8 through the wheel belt 2, the outer drum 1 is fixedly connected with an inner drum 11 through a connecting column 9, a lifting blade 12 is fixedly connected to the inner wall of the inner drum 11, a spiral guide plate is arranged in the inner drum 11, the outer drum 1 has a heat insulation function on the inner drum 11, the lifting blade 12 can lift an object in the inner drum 11, so that hot air in the inner drum 11 can quickly evaporate moisture in the object, the left end faces of the outer drum 1 and the inner drum 11 are a feeding port and an air inlet, the right end faces of the outer drum 1 and the inner drum 11 are a discharging, The support plate 14, a connecting plate 15, a silica gel rod 16, a telescopic column 17, a second magnet 18, a handle 19, a base 20, a jack 21, a compression spring 22, an upper protective shell 23, a lower protective shell 24, a push switch 25, a light emitting diode 28, a buzzer 26, a battery bin 27 and a power cord 29, wherein the connecting plate 15 and the silica gel rod 16 are fixedly connected to the lower part of the support plate 14, a motor 6 and a speed reducer 4 are fixedly connected to the support plate 14, an output shaft of the motor 6 is fixedly connected with a differential gear inside the speed reducer 4, an output shaft of the speed reducer 4 is rotatably connected with a rotating shaft 10 of a riding wheel 8 through a coupling 7, the motor 6 can drive the riding wheel 8 through the speed reducer 4, then the outer cylinder 1 is provided with rotating kinetic energy through the riding wheel 8, the motor 6 and the speed reducer 4 form one group, the motor 6 and the speed reducer 4 form two groups, and, the model of the motor 6 is Yr160m-4, the model of the speed reducer 4 is XWD-6, the motor 6 and the speed reducer 4 are both disclosed in the prior art, the lower part of the connecting plate 15 is fixedly connected with a first magnet 13 and a telescopic column 17, the outer part of the telescopic column 17 is sleeved with a compression spring 22, the telescopic column 17 and the compression spring 22 arranged in the damper body 5 are in one group, the telescopic column 17 and the compression spring 22 are nine groups, the telescopic column 17 and the compression spring 22 are in a rectangular array, the number of jacks 21 arranged in the damper body 5 is four, the jacks 21 are in a rectangular array, the telescopic column 17 can provide stability for the dual-cylinder dryer, the compression spring 22 can provide supporting force for the dual-cylinder dryer, meanwhile, the compression spring 22 can effectively damp the dual-cylinder dryer, the jacks 21 can jack the supporting plate 14 up when overhauling, thereby facilitating the overhauling workers to overhaul the damper body 5, the lower part of the telescopic column 17 is fixedly connected with a base 20, a second magnet 18 is fixedly connected with the base 20, the second magnet 18 is arranged below the first magnet 13, the second magnet 18 is perpendicular to the first magnet 13, a press switch 25 is arranged below a silica gel rod 16, the press switch 25 is perpendicular to the silica gel rod 16, the first magnet 13 and the second magnet 18 are of the same magnetic pole, the double-cylinder dryer is damped by utilizing the principle that the same magnetic pole repels, the lower part of the support plate 14 is fixedly connected with an upper protective shell 23, a lower protective shell 24 is fixedly connected with the base 20, the upper protective shell 23 and the lower protective shell 24 are both rectangular, the size of the inner wall of the upper protective shell 23 is matched with the size of the outer wall of the lower protective shell 24, the upper protective shell 23 is connected with the lower protective shell 24 in a sleeved mode, and can provide stability for the double-, meanwhile, the internal structure of the shock absorber body 5 can be protected, a press switch 25, a light emitting diode 28, a buzzer 26 and a battery bin 27 are arranged on the right side of the base 20, the press switch 25 is electrically connected with the buzzer 26 and the battery bin 27 through a power line 29, the battery bin 27 is electrically connected with the light emitting diode 28 through the power line 29, a jack 21 and a handle 19 are arranged on the base 20, a compression spring 22 is reserved between the silica gel rod 16 and the press switch 25, the running stroke space of the first magnet 13 and the second magnet 18 is reserved, hydraulic oil is arranged in the base 20, and the lifting of the jack 21 can be controlled through the hydraulic oil arranged in the base 20 through the handle 19.
The working principle is as follows: the double-cylinder dryer drives two riding wheels 8 at two ends of the right side of an outer cylinder 1 through a motor 6 and a speed reducer 4 respectively, the riding wheels 8 at two ends of the right side of the outer cylinder 1 drive a wheel belt 2 to rotate, so that the wheel belt 2 drives the outer cylinder 1 and an inner cylinder 11 to rotate, then materials to be dried are fed into the inner cylinder 11 of the double-cylinder dryer from the left end of the double-cylinder dryer, the materials enter the inner cylinder 11 through a spiral guide plate arranged in the inner cylinder 11, the materials are continuously lifted and raised by a lifting blade 12 in the inner cylinder 11 along with the rotation of the inner cylinder 11, so that the materials and hot air transmitted from a hot blast stove carry out strong heat exchange, because a metal steel plate is faster than the heat conduction of the materials to be dried, the steel plate and the lifting blade 12 on the inner wall of the inner cylinder 11 are firstly heated, then the heat is transmitted to the materials in a conduction and radiation mode, the temperature of, the water in the material is decomposed into water vapor which is separated from the material, then the water vapor is discharged into the atmosphere after being processed by a dust remover along with smoke dust, thereby achieving the purpose of drying the material, the vibration generated when the double-cylinder dryer operates is transmitted to the connecting plate 15 through the supporting plate 14, the vibration is eliminated by the connecting plate 15 through the elasticity of the compression spring 22 and the buoyancy generated by the first magnet 13 and the second magnet 18, when the compression spring 22 and the first magnet 13 and the second magnet 18 are damaged, the gravity is pressed on the supporting plate 14 by the component carried by the upper part of the supporting plate 14, so that the supporting plate 14 drives the silica gel rod 16 to move downwards under the action of the gravity, the silica gel rod 16 can press the press switch 25 downwards at the specified position, after the silica gel rod 16 presses the press switch 25, the upper protective shell 23 arranged on the supporting plate 14 is completely contacted with the base 20, the supporting plate 14 is supported by the upper protective shell 23, further, the support plate 14 is not moved downwards, and after the press switch 25 is pressed by the silicon rubber rod 16, the press switch 25 transmits the electric power in the battery compartment 27 to the buzzer 26 through the power cord 29, and further the buzzer 26 gives an alarm to remind the maintenance personnel to maintain the shock absorber body 5, the handle 19 on the base 20 is pressed during maintenance, the jack 21 is driven by the hydraulic oil in the base 20, the support plate 14 is jacked up through the jack 21, the jack 21 can be reset through the handle 19 after the maintenance is completed, when the battery in the battery compartment 27 is in power shortage, the light emitting diode 28 electrically connected with the battery compartment 27 does not emit light, and when the maintenance personnel finds that the light emitting diode 28 does not emit light any more, the battery in the battery compartment 27 is replaced.
To sum up can, the utility model discloses a set up the utility model discloses an urceolus 1, layer board 3 and bumper shock absorber body 5 that set up have solved traditional two section of thick bamboo drying-machines and have not possessed the shock attenuation effect, can produce the vibration when the operation, make the work place produce very harsh noise, and then can cause very serious influence to workman's hearing, simultaneously because the vibration of strong high frequency makes the problem that the other equipment life in work place reduces.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an environmental protection type double-cylinder drying-machine with cushioning effect, includes urceolus (1), layer board (3) and bumper shock absorber body (5), its characterized in that: the shock absorber comprises an outer barrel (1), a wheel belt (2) is fixedly connected to the outer barrel (1), a supporting plate (3) is fixedly connected to the upper portion of a supporting plate (14) in a shock absorber body (5), the supporting plate (3) is rotatably connected with a supporting wheel (8) through a rotating shaft (10), the outer barrel (1) is rotatably connected with the supporting wheel (8) through the wheel belt (2), the shock absorber body (5) comprises a first magnet (13), the supporting plate (14), a connecting plate (15), a silica gel rod (16), a telescopic column (17), a second magnet (18), a handle (19), a base (20), a jack (21), a compression spring (22), an upper protective shell (23), a lower protective shell (24), a press switch (25), a light emitting diode (28), a buzzer (26), a battery bin (27) and a power line (29), the lower portion of the supporting plate (14) is fixedly connected with the connecting plate (15) and the silica, the lower part of the connecting plate (15) is fixedly connected with a first magnet (13) and a telescopic column (17), a compression spring (22) is sleeved outside the telescopic column (17), the lower part of the telescopic column (17) is fixedly connected with the base (20), a second magnet (18) is fixedly connected on the base (20), an upper protective shell (23) is fixedly connected on the lower part of the supporting plate (14), a lower protective shell (24) is fixedly connected on the base (20), a press switch (25), a light-emitting diode (28), a buzzer (26) and a battery bin (27) are arranged on the right side of the base (20), the press switch (25) is electrically connected with the buzzer (26) and the battery chamber (27) through a power cord (29), the battery compartment (27) is electrically connected with the light emitting diode (28) through a power line (29), the base (20) is provided with a jack (21) and a handle (19).
2. An environment-friendly dual-drum dryer with a shock-absorbing function as claimed in claim 1, wherein: the second magnet (18) is arranged below the first magnet (13), the second magnet (18) is perpendicular to the first magnet (13), the press switch (25) is arranged below the silica gel rod (16), and the press switch (25) is perpendicular to the silica gel rod (16).
3. An environment-friendly dual-drum dryer with a shock-absorbing function as claimed in claim 1, wherein: the outer barrel (1) is fixedly connected with the inner barrel (11) through a connecting column (9), and a material raising plate (12) is fixedly connected to the inner wall of the inner barrel (11).
4. An environment-friendly dual-drum dryer with a shock-absorbing function as claimed in claim 1, wherein: the supporting plate (14) is fixedly connected with a motor (6) and a speed reducer (4), an output shaft of the motor (6) is fixedly connected with a differential gear inside the speed reducer (4), and an output shaft of the speed reducer (4) is rotatably connected with a rotating shaft (10) of a riding wheel (8) through a coupler (7).
5. An environment-friendly dual-drum dryer with a shock-absorbing function as claimed in claim 1, wherein: telescopic columns (17) and compression springs (22) arranged in the shock absorber body (5) are a group, nine groups of telescopic columns (17) and compression springs (22) are total, the telescopic columns (17) and the compression springs (22) are rectangular arrays, jacks (21) arranged in the shock absorber body (5) are four, and the jacks (21) are rectangular arrays.
6. An environment-friendly dual-drum dryer with a shock-absorbing function as claimed in claim 1, wherein: the upper protection shell (23) and the lower protection shell (24) are both rectangular, the size of the inner wall of the upper protection shell (23) is matched with the size of the outer wall of the lower protection shell (24), and the upper protection shell (23) is connected with the lower protection shell (24) in a sleeved mode.
CN201921700036.5U 2019-10-11 2019-10-11 Environment-friendly double-cylinder dryer with damping effect Expired - Fee Related CN211204746U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921700036.5U CN211204746U (en) 2019-10-11 2019-10-11 Environment-friendly double-cylinder dryer with damping effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921700036.5U CN211204746U (en) 2019-10-11 2019-10-11 Environment-friendly double-cylinder dryer with damping effect

Publications (1)

Publication Number Publication Date
CN211204746U true CN211204746U (en) 2020-08-07

Family

ID=71856626

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921700036.5U Expired - Fee Related CN211204746U (en) 2019-10-11 2019-10-11 Environment-friendly double-cylinder dryer with damping effect

Country Status (1)

Country Link
CN (1) CN211204746U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112157087A (en) * 2020-09-25 2021-01-01 林艳玲 Self-adaptation medical test tube cleaning device based on magnetism is inhaled

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112157087A (en) * 2020-09-25 2021-01-01 林艳玲 Self-adaptation medical test tube cleaning device based on magnetism is inhaled
CN112157087B (en) * 2020-09-25 2024-02-20 林艳玲 Self-adaptive medical test tube cleaning device based on magnetic attraction

Similar Documents

Publication Publication Date Title
CN204448798U (en) A kind of rubbish from cooking environmental protection recycling and processing device
CN211204746U (en) Environment-friendly double-cylinder dryer with damping effect
CN114812685B (en) Lithium battery safety performance detection device
CN211755612U (en) Production pottery is with adding high-efficient ball mill of hot type
CN205079578U (en) Remove three barrels of grain drying -machines
CN208033153U (en) A kind of cleaning device of garbage incinerating kiln fire grate
CN206430493U (en) A kind of industrial chemicals drying process device with frying function
CN209512450U (en) A kind of glass fibre drying unit
CN206284286U (en) A kind of pocket tea leaf water-removing device with dust arrester
CN215004571U (en) A equipment for coal quality analysis
CN107913890B (en) Environment-friendly garbage disposal equipment
CN206905481U (en) A kind of drying unit of building board
CN210741132U (en) Kiln waste heat collecting and utilizing device
CN111964392B (en) Fly ash drum type dryer adopting natural gas for heating
CN213152410U (en) Special heating device for overhauling grinding roller of coal mill
CN211775219U (en) Waterproof engineering construction detail processing apparatus
CN201892389U (en) Chain dryer
CN110645807A (en) Kiln waste heat collecting and utilizing device and process thereof
CN212431754U (en) Industrial electric furnace with shock-absorbing and noise-reducing functions
CN206720388U (en) A kind of ammonium perchlorate spiral wet feed elevator
CN209067517U (en) A kind of high temperature fire control smoke exhausting centrifugal fan of cabinet type
CN210861954U (en) Boiling dryer
CN207201919U (en) A kind of lift drying frame equipment of agricultural production
CN217437158U (en) Automatic building block overturning mechanism
CN213649619U (en) Shallow is carried to building materials

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: 20200807

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