CN211802914U - Chemical barrel safety cleaning device for chemical field - Google Patents

Chemical barrel safety cleaning device for chemical field Download PDF

Info

Publication number
CN211802914U
CN211802914U CN202020378726.XU CN202020378726U CN211802914U CN 211802914 U CN211802914 U CN 211802914U CN 202020378726 U CN202020378726 U CN 202020378726U CN 211802914 U CN211802914 U CN 211802914U
Authority
CN
China
Prior art keywords
face
plate
chemical
hollow shell
cleaning device
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
CN202020378726.XU
Other languages
Chinese (zh)
Inventor
闫玉兵
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.)
Luliang University
Original Assignee
Luliang University
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 Luliang University filed Critical Luliang University
Priority to CN202020378726.XU priority Critical patent/CN211802914U/en
Application granted granted Critical
Publication of CN211802914U publication Critical patent/CN211802914U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Cleaning By Liquid Or Steam (AREA)

Abstract

The utility model discloses a chemical industry field is with chemical drum safety cleaning device, including mounting panel and first motor, the utility model discloses a positioning mechanism has been set up in the inboard bottom of frame, through steadily placing chemical drum inboard at the inner tube, then start two electric putter simultaneously for electric putter's output shaft promotes first commentaries on classics board and second commentaries on classics board and carries out clockwise rotation, first commentaries on classics board promotes the sliding plate and removes left simultaneously, and two sliding plates then promote looks fixed connection's splint respectively and carry out radial movement and hug closely both ends bottom about chemical drum, realize the fixed of chemical drum position, reached the position of rapid stabilization with chemical drum and fixed, bring convenient beneficial effect for work.

Description

Chemical barrel safety cleaning device for chemical field
Technical Field
The utility model particularly relates to a chemical industry bucket safety belt cleaning device for chemical industry field relates to belt cleaning device correlation field.
Background
The biochemical engineering is a cross discipline composed of multiple disciplines of biology, chemistry, engineering and the like, researches a basic theory and an engineering technology in a process of living body or bioactive substance participation, is an important branch and a secondary discipline of important development in a primary discipline of chemical engineering and technology, plays a key role in the industrialization process of the biotechnology, a chemical barrel is one of common tools in chemical equipment, and the chemical barrel is cleaned by a cleaning device after being used.
When belt cleaning device is wasing chemical industry bucket, for providing the stability of cleaning process, need fix chemical industry bucket usually, then wash again, common mode is for pressing tightly or fix through the bolt clamp tight mode through manual carrying out the extrusion, and these mode stability are relatively poor, have certain danger moreover, bring inconvenience for work.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above insufficiency, the utility model provides a chemical industry field is with chemical bucket safety cleaning device here.
The utility model is realized by constructing a chemical bucket safe cleaning device used in the chemical field, the device comprises a mounting plate, a first motor and a positioning mechanism, wherein the mounting plate is slidably mounted at the front end of the inner side of an outer frame, the positioning mechanism is arranged at the bottom end of the inner side of the outer frame and consists of a hollow shell, an inner cylinder, an electric push rod, a first rotating plate, a second rotating plate, a clamping plate, a silica gel sheet and a transmission mechanism, the hollow shell is locked at the rear end of the bottom end surface of the inner side of the outer frame, the inner cylinder is embedded in the middle of the top end surface of the hollow shell, the front end of the bottom end surface of the electric push rod is rotationally connected with the right front end of the bottom end surface of the inner side of the hollow shell through a rotating shaft, the front ends of the bottom end surfaces of the first rotating plate and the second rotating plate are rotationally connected with an output shaft at the bottom of the electric push rod through the same shaft lever, the clamping plate moves left and right on the inner side of the inner cylinder through the transmission mechanism, and the silica gel sheet is fastened on the right end face of the clamping plate.
Preferably, the rear side of the top end surface of the mounting plate is sequentially fastened with a water inlet hose and a second motor from front to back, the first motor is locked at the front end of the top end surface of the outer frame, an output shaft at the bottom of the first motor penetrates through the top end face of the outer frame and then is fastened on the top end face of the screw rod, a controller is arranged at the bottom of the left end face of the outer frame, an output shaft at the bottom of the second motor penetrates through the top end face of the mounting plate and then is fixedly connected to the top end face of the connecting rod, the connecting rod is vertically welded in the middle of the top end face of the disc, cleaning wires are fastened on the side surface and the bottom end face of the disc, the water inlet hose penetrates through the rear end of the top end face of the mounting plate, and the bottom of the water inlet hose is provided with a spray head, the bottom of the outer side of the screw rod is rotationally connected with the front part of the bottom surface of the inner side of the outer frame, and the side surface of the screw rod is in threaded connection with the inner side of a screw hole formed in the front end of the top end surface of the mounting plate, and the first motor, the second motor and the electric push rod are electrically connected with the controller.
Preferably, the transmission mechanism comprises a fixed plate, a sliding groove, a sliding plate, a sliding support and an extension plate, the fixed plate is locked at the middle front end of the right end face of the inner side of the hollow shell, the middle part of the rear end face of the top end of the fixed plate is hinged to the bottom of the second rotating plate, the sliding groove is arranged in the middle parts of the upper end face and the lower end face of the fixed plate, the sliding plate is slidably mounted on the inner side of the sliding groove at the top, the sliding plate penetrates through the middle part of the right end face of the inner cylinder and then is locked in the middle part of the right end face of the clamping plate, the right end face of the sliding plate is hinged to the bottom of the first rotating plate, the sliding support is slidably mounted on the inner side of.
Preferably, the splint is in an arc shape protruding rightwards, and the width of the splint is 15 cm.
Preferably, the bottom end surface of the inner side of the inner cylinder and the bottom end surface of the hollow shell are provided with through holes in a penetrating manner, and more than two through holes are distributed at equal intervals.
Preferably, the front end face and the rear end face of the silica gel sheet are flush with the front end face and the rear end face of the clamping plate, and the left end face of the silica gel sheet is a rough surface.
Preferably, the electric push rod, the first rotating plate, the second rotating plate, the clamping plate, the silica gel sheet and the transmission mechanism are arranged at the left end and the right end of the inner side of the hollow shell and are symmetrically distributed.
Preferably, the vertical distance between the front end face of the hollow shell and the rear end face of the screw rod is 0.3cm, and four ends of the bottom end face of the hollow shell are provided with mounting screw holes.
Preferably, the model of the electric push rod is DSDG25 electric push rod.
Preferably, the clamping plate is made of aluminum alloy.
The utility model has the advantages of as follows: the utility model discloses an improve and provide a chemical industry bucket safety cleaning device for chemical industry field here, compare with equipment of the same type, have following improvement:
the method has the advantages that: a chemical industry bucket safety cleaning device for chemical industry field, the utility model discloses a positioning mechanism has been set up in the inboard bottom of frame, through steadily placing chemical industry bucket in the inner tube inboard, then start two electric putter simultaneously, make electric putter's output shaft promote first commentaries on classics board and second commentaries on classics board and carry out clockwise rotation, first commentaries on classics board promotes the sliding plate and removes left simultaneously, and two sliding plates then promote looks fixed connection's splint respectively and carry out radial movement and hug closely both ends bottom about chemical industry bucket, realize the fixed of chemical industry bucket position, reached the position of rapid stabilization with chemical industry bucket and fixed, bring convenient beneficial effect for work.
The method has the advantages that: a chemical industry bucket safety cleaning device for chemical industry field, the utility model discloses a splint are bellied arc form right, and the width of splint is 15cm, has reached to make splint drive the more stable clamp of silica gel piece press from both sides tightly at the side surface of chemical industry bucket, press from both sides tight beneficial effect more stable simultaneously.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection structure of the mounting plate of the present invention;
fig. 3 is a schematic top view of the positioning mechanism of the present invention;
FIG. 4 is a schematic view of the connection structure of the midair shell of the present invention;
fig. 5 is an enlarged schematic view of a structure in fig. 3 according to the present invention.
Wherein: the device comprises a mounting plate-1, a first motor-2, an outer frame-3, a controller-4, a second motor-6, a connecting rod-7, a disk-8, a cleaning wire-9, a water inlet hose-10, a spray head-11, a screw rod-12, a positioning mechanism-5, a hollow shell-51, an inner cylinder-52, an electric push rod-53, a first rotating plate-54, a second rotating plate-55, a clamping plate-56, a silica gel sheet-57, a transmission mechanism-58, a fixed plate-581, a sliding groove-582, a sliding plate-583, a sliding support-584 and an extension plate-585.
Detailed Description
The present invention will be described in detail with reference to the accompanying fig. 1-5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, 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.
The utility model provides a chemical bucket safety cleaning device for the chemical field through the improvement, which comprises a mounting plate 1, a first motor 2 and a positioning mechanism 5, wherein the mounting plate 1 is slidably arranged at the front end of the inner side of an outer frame 3, the positioning mechanism 5 is arranged at the bottom end of the inner side of the outer frame 3, the positioning mechanism 5 consists of a hollow shell 51, an inner tube 52, an electric push rod 53, a first rotating plate 54, a second rotating plate 55, a clamping plate 56, a silica gel sheet 57 and a transmission mechanism 58, the hollow shell 51 is locked at the rear end of the bottom end face of the inner side of the outer frame 3, the inner tube 52 is embedded in the middle part of the top end face of the hollow shell 51, so as to be convenient for preliminary positioning of the chemical bucket, the front end of the bottom end face of the electric push rod 53 is rotatably connected with the front end of the right end face of the bottom end face of the hollow shell 51 through a rotating shaft, so that the, the clamping plate 56 moves left and right on the inner side of the inner cylinder 52 through the transmission mechanism 58, and the silica gel sheet 57 is fastened on the right end face of the clamping plate 56, so that the chemical barrel is more stably clamped.
Furthermore, a water inlet hose 10 and a second motor 6 are sequentially fastened on the rear side of the top end face of the mounting plate 1 from front to back, the first motor 2 is locked on the front end of the top end face of the outer frame 3, an output shaft at the bottom of the first motor 2 penetrates through the top end face of the outer frame 3 and then is fastened on the top end face of the screw rod 12, a controller 4 is mounted at the bottom of the left end face of the outer frame 3, an output shaft at the bottom of the second motor 6 penetrates through the top end face of the mounting plate 1 and then is fixedly connected to the top end face of the connecting rod 7, the connecting rod 7 is vertically welded in the middle of the top end face of the disc 8, cleaning wires 9 are fastened on the side surface and the bottom end face of the disc 8, so that the inner side wall and the inner side bottom end of the chemical barrel can be cleaned simultaneously, the water inlet hose 10 penetrates through the rear end, and the side surface of the screw rod 12 is in threaded connection with the inner side of a screw hole formed in the front end of the top end surface of the mounting plate 1, so that the mounting plate 1 is driven to vertically move conveniently, and the first motor 2, the second motor 6 and the electric push rod 53 are electrically connected with the controller 4.
Further, the transmission mechanism 58 is composed of a fixed plate 581, a sliding groove 582, a sliding plate 583, a sliding bracket 584 and an extension plate 585, wherein the fixed plate 581 is locked at the front end of the right end surface of the inner side of the hollow shell 51, the middle part of the rear end of the top end surface of the fixed plate 581 is hinged at the bottom of the second rotating plate 55, the sliding groove 582 is opened at the middle part of the upper and lower end surfaces of the fixed plate 581, the sliding plate 583 is slidably installed at the inner side of the sliding groove 582 at the top, the sliding plate 583 passes through the middle part of the right end surface of the inner cylinder 52 and is locked at the middle part of the right end surface of the clamping plate 56 so as to drive the clamping plate 56 to move horizontally, the right end surface of the sliding plate 583 is hinged at the bottom of the first rotating plate 54, the sliding bracket 584 is slidably installed at the inner side of the, and the extension plate 585 is fixedly locked to the inner right end surface of the hollow case 51.
Further, splint 56 is bellied arc form right, and splint 56's width is 15cm for it is tight to carry out the fixed clamp with the chemical industry bucket more stably.
Furthermore, the bottom end surface of the inner side of the inner cylinder 52 and the bottom end surface of the hollow shell 51 are provided with through holes in a penetrating manner, and more than two through holes are distributed at equal intervals, so that the cleaning water is prevented from being accumulated on the inner side of the inner cylinder 52.
Further, the front and back terminal surface of silica gel piece 57 flushes in the front and back terminal surface of splint 56 mutually, and the left end face of silica gel piece 57 is rough surface for it is fixed clamp tightly to carry out the chemical drum more stably.
Further, electric putter 53, first commentaries on classics board 54, second commentaries on classics board 55, splint 56, silica gel piece 57 and drive mechanism 58 are provided with two in the inboard both ends of controlling of cavity shell 51, and for the symmetric distribution, are convenient for press from both sides tight fixedly to the both sides of chemical industry bucket simultaneously.
Furthermore, the vertical distance between the front end surface of the hollow shell 51 and the rear end surface of the screw rod 12 is 0.3cm, and four ends of the bottom end surface of the hollow shell 51 are provided with mounting screw holes, so that the screw rod 12 is prevented from being worn due to contact with the front end surface of the hollow shell 51, and meanwhile, the hollow shell 51 is convenient to mount.
Furthermore, the electric push rod 53 is a DSDG25 electric push rod, so that the size is small and the installation is convenient.
Further, splint 56 material is the aluminum alloy material, and the material is lighter, is convenient for promote.
The utility model provides a chemical bucket safe cleaning device for the chemical field through improvement, which operates according to the following mode;
firstly, the controller 4 is connected to an external power supply, and the water inlet hose 10 is connected to an external water supply device;
secondly, the chemical engineering barrel is stably placed on the inner side of the inner barrel 52, then the two electric push rods 53 are simultaneously started, so that the output shafts of the electric push rods 53 push the first rotating plate 54 and the second rotating plate 55 to rotate clockwise, meanwhile, the first rotating plate 54 pushes the sliding plates 583 to horizontally move leftwards on the inner side of the sliding groove 582, and the two sliding plates 583 respectively push the fixedly connected clamping plates 56 to radially move and cling to the bottoms of the left end and the right end of the chemical engineering barrel, so that the chemical engineering barrel is fixed in position;
third, then start first motor 2 and second motor 6 through controller 4, first motor 2 circular telegram output shaft drives lead screw 12 and rotates, make mounting panel 1 carry out vertical downstream under the drive of lead screw 12, mounting panel 1 drives second motor 6 and connecting rod 7 vertical downstream simultaneously, and second motor 6 circular telegram then the output shaft drives connecting rod 7 and rotates, and connecting rod 7 drives disc 8 and cleaning wire 9 and rotates, and cleaning wire 9 is at the in-process that enters into the chemical industry bucket, cleaning wire 9 is pressed deformation, it is clean to rotate after cleaning wire 9 enters into the chemical industry bucket inboard, and cooperation water inlet hose 10 enters into shower nozzle 11, then wash the chemical industry bucket inboard further by shower nozzle 11 spun washing water.
The utility model provides a chemical industry bucket safety cleaning device for the chemical industry field through the improvement, through steadily placing the chemical industry bucket in the inner tube 52 inboard, then start two electric putter 53 simultaneously, make the output shaft of electric putter 53 promote first rotor 54 and second rotor 55 and rotate clockwise, first rotor 54 promotes sliding plate 583 and carries out the level and move left in sliding tray 582 inboard simultaneously, and two sliding plates 583 promote mutually fixed connection's splint 56 respectively and carry out radial movement and hug closely in the left and right both ends bottom of chemical industry bucket, thereby realize the fixed of chemical industry bucket position, reached fast and stably fix the position of chemical industry bucket, bring convenient beneficial effect for work, be the bellied arc form right through splint 56, and splint 56's width is 15cm, reached and made splint 56 drive the more stable clamping of silica gel piece at the side surface of chemical industry bucket, and the clamping is more stable.
The basic principle and the main characteristics of the utility model and the advantages of the utility model have been shown and described above, and the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt rivet among the prior art, welding, and machinery, part and equipment all adopt prior art, conventional model, and conventional connection mode in the prior art is adopted in addition to circuit connection, and the details are not repeated here.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A chemical bucket safety cleaning device for the chemical field comprises an installation plate (1) and a first motor (2), wherein the installation plate (1) is slidably installed at the front end of the inner side of an outer frame (3);
the method is characterized in that: the positioning device is characterized by further comprising a positioning mechanism (5), the positioning mechanism (5) is arranged at the bottom end of the inner side of the outer frame (3), the positioning mechanism (5) is composed of a hollow shell (51), an inner cylinder (52), an electric push rod (53), a first rotating plate (54), a second rotating plate (55), a clamping plate (56), a silica gel sheet (57) and a transmission mechanism (58), the hollow shell (51) is locked at the rear end of the bottom end face of the inner side of the outer frame (3), the inner cylinder (52) is embedded in the middle of the top end face of the hollow shell (51), the front end of the bottom end face of the electric push rod (53) is rotatably connected with the right front end of the bottom end face of the inner side of the hollow shell (51) through a rotating shaft, the front ends of the bottom end faces of the first rotating plate (54) and the second rotating plate (55) are rotatably connected with an output shaft at the bottom of the electric push rod (53) through the, the silica gel sheet (57) is fastened on the right end face of the clamping plate (56).
2. The chemical bucket safety cleaning device for the chemical field according to claim 1, characterized in that: the rear side of the top end face of the mounting plate (1) is fastened with a water inlet hose (10) and a second motor (6) in sequence from front to back, the first motor (2) is locked at the front end of the top end face of the outer frame (3), an output shaft at the bottom of the first motor (2) penetrates through the top end face of the outer frame (3) and then is fastened at the top end face of the screw rod (12), the controller (4) is installed at the bottom of the left end face of the outer frame (3), an output shaft at the bottom of the second motor (6) penetrates through the top end face of the mounting plate (1) and then is fixedly connected to the top end face of the connecting rod (7), the connecting rod (7) is vertically welded at the middle part of the bottom end face of the disc (8), cleaning wires (9) are fastened at the side surface and the bottom end face of the disc (8), the water inlet hose (10) penetrates through the rear end of the top end face of the mounting plate (1), a spray head, and the side surface of the screw rod (12) is in threaded connection with the inner side of a screw hole formed in the front end of the top end face of the mounting plate (1), and the first motor (2), the second motor (6) and the electric push rod (53) are electrically connected with the controller (4).
3. The chemical bucket safety cleaning device for the chemical field according to claim 1, characterized in that: the transmission mechanism (58) consists of a fixed plate (581), a sliding groove (582), a sliding plate (583), a sliding support (584) and an extension plate (585), wherein the fixed plate (581) is locked at the front end of the right end surface of the inner side of the hollow shell (51), the middle part of the rear end of the top end surface of the fixed plate (581) is hinged to the bottom of the second rotating plate (55), the sliding groove (582) is arranged in the middle parts of the upper and lower end surfaces of the fixed plate (581), the sliding plate (583) is slidably arranged at the inner side of the sliding groove (582) at the top, the sliding plate (583) passes through the middle part of the right end surface of the inner cylinder (52) and then is locked at the middle part of the right end surface of the clamping plate (56), the right end surface of the sliding plate (583) is hinged to the bottom of the first rotating plate (54), the sliding support (584) is slidably arranged at the inner side of the sliding, and the extension plate (585) is locked on the right end surface of the inner side of the hollow shell (51).
4. The chemical bucket safety cleaning device for the chemical field according to claim 1, characterized in that: the clamping plate (56) is in an arc shape protruding towards the right, and the width of the clamping plate (56) is 15 cm.
5. The chemical bucket safety cleaning device for the chemical field according to claim 1, characterized in that: the bottom end surface of the inner side of the inner cylinder (52) and the bottom end surface of the hollow shell (51) are provided with through holes in a penetrating way, and more than two through holes are distributed at equal intervals.
6. The chemical bucket safety cleaning device for the chemical field according to claim 1, characterized in that: the front end face and the rear end face of the silica gel sheet (57) are flush with the front end face and the rear end face of the clamping plate (56), and the left end face of the silica gel sheet (57) is a rough surface.
7. The chemical bucket safety cleaning device for the chemical field according to claim 1, characterized in that: the electric push rod (53), the first rotating plate (54), the second rotating plate (55), the clamping plate (56), the silica gel sheet (57) and the transmission mechanism (58) are arranged at the left end and the right end of the inner side of the hollow shell (51) and are symmetrically distributed.
8. The chemical bucket safety cleaning device for the chemical field according to claim 1, characterized in that: the vertical distance between the front end face of the hollow shell (51) and the rear end face of the screw rod (12) is 0.3cm, and four ends of the bottom end face of the hollow shell (51) are provided with mounting screw holes.
CN202020378726.XU 2020-03-23 2020-03-23 Chemical barrel safety cleaning device for chemical field Expired - Fee Related CN211802914U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020378726.XU CN211802914U (en) 2020-03-23 2020-03-23 Chemical barrel safety cleaning device for chemical field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020378726.XU CN211802914U (en) 2020-03-23 2020-03-23 Chemical barrel safety cleaning device for chemical field

Publications (1)

Publication Number Publication Date
CN211802914U true CN211802914U (en) 2020-10-30

Family

ID=73011010

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020378726.XU Expired - Fee Related CN211802914U (en) 2020-03-23 2020-03-23 Chemical barrel safety cleaning device for chemical field

Country Status (1)

Country Link
CN (1) CN211802914U (en)

Similar Documents

Publication Publication Date Title
CN211276749U (en) Cutting device for recycling waste steel
CN210878657U (en) Cutting mechanism for production and processing of finishing board
CN205552905U (en) Automatic groover of ceramic tile
CN109046825B (en) Saving type paint spraying device for tubular automobile parts
CN211099717U (en) Spray booth is used in auto-parts processing
CN214688060U (en) Plastic pipe cooling and shaping device
CN211802914U (en) Chemical barrel safety cleaning device for chemical field
CN211029624U (en) Efficient hardware kitchen tool grinding and polishing device for hardware manufacturing
CN217646995U (en) Surface cleaning equipment is used in new energy automobile processing
CN211102709U (en) Hardware machining workbench with automatic cleaning function
CN210280146U (en) Aluminum template waste recovery device
CN211637433U (en) Ash removal device is used in processing of computer accessory
CN210386759U (en) Backlight light guide plate processing device with cleaning function
CN210647402U (en) Mould belt cleaning device with sewage recovery function
CN215165615U (en) Concrete pouring equipment for building foundation construction under karst geology
CN212469143U (en) Efficient machinery field's container inner wall cleaning equipment
CN215745312U (en) Cleaning device for long-life quartz crucible
CN215509616U (en) Interior wall diaphragm right angle ironware welded joint cleaning device
CN215031362U (en) Cleaning equipment for machining winch accessories
CN216500124U (en) Seamless steel pipe paint spraying apparatus with limiting function
CN211566633U (en) Plastic mold device convenient to fix
CN219083404U (en) Washing rack connecting plate assembling structure
CN210172984U (en) Punching press drilling equipment is used in automobile parts production
CN218804920U (en) Clean production aluminum plate engraver
CN216153474U (en) Carving machine with high automation degree for furniture processing

Legal Events

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

Granted publication date: 20201030