CN112787270A - Core stripping device for electric power cable - Google Patents
Core stripping device for electric power cable Download PDFInfo
- Publication number
- CN112787270A CN112787270A CN202011588489.0A CN202011588489A CN112787270A CN 112787270 A CN112787270 A CN 112787270A CN 202011588489 A CN202011588489 A CN 202011588489A CN 112787270 A CN112787270 A CN 112787270A
- Authority
- CN
- China
- Prior art keywords
- cable
- roller
- electric power
- stripping device
- recovery
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
- H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
- H02G1/1248—Machines
- H02G1/1251—Machines the cutting element not rotating about the wire or cable
- H02G1/126—Machines the cutting element not rotating about the wire or cable making a longitudinal cut
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/18—Methods or apparatus in which packages rotate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Landscapes
- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
Abstract
The invention relates to a cable stripping device for electric power, which comprises: a base and a transverse plate fixedly arranged through a first upright post and a second upright post, wherein the first upright post is provided with a skin cutting mechanism, a pay-off roller and a take-up roller are fixedly arranged on the base, a motor is arranged on one side of the second upright post, and the output end of the motor is rotatably provided with a rotating shaft, one end of the rotating shaft is connected with a transmission component, the other end of the rotating shaft is connected with a peeling mechanism, the core stripping device for the electric power cable further comprises a recovery mechanism, the recovery mechanism is installed on the base, the peeling mechanism cuts the outer skin of the cable, the peeling mechanism peels off the cut outer skin, the peeled outer skin is guided to the recovery mechanism, the peeled outer skin of the cable is recycled, finally, the cable with the core peeled is wound on the wire winding roller, and the effective core peeling and recovery of the cable and the winding of the cable with the core peeled are achieved.
Description
Technical Field
The invention relates to the related technical field of cables for electric power, in particular to a core stripping device for cables for electric power.
Background
The cable is common and indispensable in our daily life, and mainly plays a role in electric connection. At present, after the processing of the cable is finished, the cable can have a layer of outer skin, and along with the development of the cable industry and the electrical appliance industry, in order not to influence the normal use, in the cable use production process, the core stripping treatment needs to be carried out on the cable.
The core stripping device of the existing cable only strips the core of the cable through the blade fixed on the knife rest, the depth of feed of the blade cannot be adjusted, and the device cannot adapt to cables of various specifications, so that the core stripping effect is poor, and the ideal practical effect cannot be achieved in the using process.
Disclosure of Invention
The invention aims to provide a core stripping device for a cable for electric power, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a cable stripping device for electric power, comprising: the cable peeling machine comprises a base and a transverse plate fixedly mounted through a first upright post and a second upright post, wherein a peeling mechanism is arranged on the first upright post, a pay-off roller and a take-up roller are fixedly mounted on the base, a cable on the pay-off roller is guided to the take-up roller through a pulley assembly after being processed by the peeling mechanism, a motor is arranged on one side of the second upright post, a rotating shaft is rotatably mounted at the output end of the motor, one end of the rotating shaft is connected with a transmission assembly, the transmission assembly is connected with the take-up roller, the other end of the rotating shaft is connected with a peeling mechanism, and the peeling mechanism is arranged on one side of the peeling mechanism and connected with the output end of a motor 10;
the core stripping device for the electric power cable further comprises a recovery mechanism, and the recovery mechanism is installed on the base and connected with the take-up roller.
As a further scheme of the invention: the pulley assembly comprises a first pulley and a first transmission pipe which are fixedly arranged on the first upright post, and a second pulley and a second transmission pipe which are fixedly arranged on the second upright post.
As a still further scheme of the invention: skin cutting mechanism includes fixed mounting and is in two mounting panels and fixed mounting on the first stand are in fixed plate on the mounting panel, and with mounting panel articulated fly leaf, just the fly leaf is kept away from the one end fixed mounting of mounting panel has the cutter, the fly leaf with be provided with first torsional spring between the fixed plate.
As a still further scheme of the invention: the peeling mechanism comprises a crank block assembly, the crank block assembly comprises a rotary table, a connecting rod, a reciprocating piece and a guide piece, the rotary table is installed at one end, far away from the motor, of the rotary shaft, the connecting rod is installed at the eccentric position of the rotary table in a rotating mode, the reciprocating piece is installed at the other end of the connecting rod, the guide piece is vertically sleeved with the reciprocating piece in a sliding mode and fixedly installed on the transverse plate, and one end, far away from the guide piece, of the reciprocating piece is connected with an elastic assembly.
As a still further scheme of the invention: the elastic component comprises a first peeling plate, a second peeling plate and a second torsion spring, wherein the first peeling plate and the second peeling plate are rotatably mounted on the reciprocating member, and the second torsion spring is arranged between the first peeling plate and the second peeling plate.
As a still further scheme of the invention: the transmission assembly comprises a worm wheel arranged on the second upright post and a worm meshed with the worm wheel, wherein the worm in the transmission assembly is connected with the rotating shaft through a first transmission belt, and a second transmission belt is connected between the rotating shaft of the worm wheel and the take-up shaft of the take-up roller.
As a still further scheme of the invention: the recovery mechanism comprises two recovery rollers fixedly mounted on the base and a third transmission belt connected with the recovery rollers and the wire collecting rollers, and a recovery rod is rotatably connected between the recovery rollers.
Compared with the prior art, the invention has the beneficial effects that: the invention has novel design, the cable on the pay-off roller is transmitted to the peeling mechanism, and the cutting force of the cutter on the peeling mechanism can be correspondingly changed along with the different specifications of the cable due to the action effect of the torsion spring, so that the cutting depth can be automatically adjusted to adapt to the cables of various specifications, then the cut outer skins are peeled off by the peeling mechanism, the peeled outer skins are guided to the recovery mechanism, and finally, the cable which finishes core peeling is wound on the wire winding roller, thereby realizing the effective core peeling and recovery of the cable and the winding of the cable which finishes core peeling.
Drawings
Fig. 1 is a schematic structural diagram of a cable stripping device for electric power.
Fig. 2 is an enlarged view of a structure at a in fig. 1.
Fig. 3 is a schematic structural diagram of an elastic component in the cable stripping device for electric power.
Fig. 4 is a schematic structural diagram of a recovery mechanism in the cable stripping device for electric power.
In the figure: 1-a base; 2-a transverse plate; 3-a first upright; 4-a second upright; 5-a first pulley; 6-a second pulley; 7-a pay-off roller; 8-a take-up roll; 9-recovery roller; 10-a motor; 11-a first transfer tube; 12-a second transfer pipe; 13-a cutter; 14-a first torsion spring; 15-a worm; 16-a worm gear; 17-a movable plate; 18-a mounting plate; 19-fixing the plate; 20-a rotating shaft; 21-a first drive belt; 22-a second drive belt; 23-a third drive belt; 24-a turntable; 25-a connecting rod; 26-a shuttle; 27-a guide; 28-a second torsion spring; 29-recovery rods; 30-a first peeling plate; 31-second peel plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1 to 4, in an embodiment of the present invention, a core stripping device for a cable for electric power includes: the cable peeling machine comprises a base 1 and a transverse plate 2 fixedly installed through a first upright post 3 and a second upright post 4, wherein a peeling mechanism is arranged on the first upright post 3, a pay-off roller 7 and a take-up roller 8 are fixedly installed on the base 1, a cable on the pay-off roller 7 is guided to the take-up roller 8 through a pulley assembly after being processed by the peeling mechanism, a motor 10 is arranged on one side of the second upright post 4, a rotating shaft 20 is rotatably installed at the output end of the motor 10, one end of the rotating shaft 20 is connected with a transmission assembly, the transmission assembly is connected with the take-up roller 8, the other end of the rotating shaft is connected with a peeling mechanism, and the peeling mechanism is arranged on one side of the peeling mechanism and connected with the output end of the motor 10;
the core stripping device for the electric power cable further comprises a recovery mechanism, wherein the recovery mechanism is installed on the base 1 and connected with the wire collection roller 8.
In the embodiment of the invention, when the cable stripping device is used, the cable on the pay-off roller 7 is transmitted to the skin cutting mechanism, so that the cutting of the cable skin is realized, then the cut skin is stripped by the skin removing mechanism, the stripped skin is guided to the recovery mechanism, the recovery and utilization of the stripped cable skin are realized, finally, the cable subjected to core stripping is wound on the wire winding roller 8, and the effective core stripping and recovery of the cable and the winding of the cable subjected to core stripping are realized.
As an embodiment of the present invention, the pulley assembly includes a first pulley 5 and a first transmission pipe 11 fixedly installed on the first upright 3, and a second pulley 6 and a second transmission pipe 12 fixedly installed on the second upright 4.
In the embodiment of the invention, the cable on the pay-off roller 7 is transmitted to the take-up roller 8 through the pulley assembly to be wound, and the cable is in a stretching state when being transmitted on the pulley assembly, so that ordered transmission and transmission balance of the cable are realized.
As an embodiment of the invention, the peeling mechanism comprises two mounting plates 18 fixedly mounted on the first upright 3, a fixed plate 19 fixedly mounted on the mounting plates 18, and a movable plate 17 hinged to the mounting plates 18, wherein a cutter 13 is fixedly mounted at one end of the movable plate 17 far away from the mounting plates 18, and a first torsion spring 14 is arranged between the movable plate 17 and the fixed plate 19.
In the embodiment of the present invention, the first torsion spring 14 is in a stretched state between the fixed plate 19 and the movable plate 17, and due to the interaction of forces, the cutter 13 exerts a certain pressure on the cable sheath, thereby achieving effective cutting of the cable sheath.
As an embodiment of the present invention, the peeling mechanism comprises a slider-crank assembly, the slider-crank assembly comprises a rotary disc 24 mounted at one end of the rotary shaft 20 far from the motor 10, a connecting rod 25 rotatably mounted at an eccentric position of the rotary disc 24 at one end, a reciprocating member 26 mounted at the other end of the connecting rod 25, and a guide member 27 vertically slidably sleeved with the reciprocating member 26 and fixedly mounted on the transverse plate 2, and an elastic assembly is connected to one end of the reciprocating member far from the guide member.
In the embodiment of the present invention, when the rotating shaft 20 rotates, the rotating disc 24 is driven to rotate, the rotating disc 24 drives the connecting rod 25 to rotate, so that the connecting rod 25 drives the reciprocating member 26 to reciprocate in the vertical direction, thereby implementing the effective peeling function of the elastic assembly.
As an embodiment of the present invention, the elastic assembly includes a first peeling plate 30 and a second peeling plate 31 rotatably installed on the shuttle 26, and a second torsion spring 28 disposed between the first peeling plate 30 and the second peeling plate 31.
In the embodiment of the present invention, the second torsion spring 28 is in a stretched state between the first peeling plate 30 and the second peeling plate 31, so that the first peeling plate 30 and the second peeling plate 31 have a certain clamping force on the cable, and the reciprocating member 26 drives the elastic assembly to reciprocate in the vertical direction, thereby realizing effective detachment of the cable sheath.
As an embodiment of the present invention, the transmission assembly includes a worm wheel 16 mounted on the second column 4 and a worm 15 engaged with the worm wheel 16, wherein the worm 15 in the transmission assembly is connected to the rotating shaft 20 through a first transmission belt 21, and a second transmission belt 22 is connected between a rotating shaft of the worm wheel 16 and a take-up shaft of the take-up roller 8.
In the embodiment of the invention, when the motor 10 works, the rotating shaft 20 is driven to rotate, the rotating shaft 20 drives the worm 15 to rotate, the worm 15 drives the worm wheel 16 to rotate, and the worm wheel 16 enables the wire take-up roller 8 to realize the wire take-up function through the second transmission belt 22, so that the effect that the peeling mechanism and the wire take-up roller 8 work simultaneously is realized.
As an embodiment of the invention, the recovery mechanism comprises two recovery rollers 9 fixedly arranged on the base 1 and a third transmission belt 23 connecting the recovery rollers 9 and the wire-collecting roller 8, and a recovery rod 29 is rotatably connected between the two recovery rollers 9.
In the embodiment of the present invention, after being cut by the cutting knife 13, the cable sheath is divided into two parts, and the recovery rod 29 is driven by the third driving belt 23 to rotate, so as to guide the cable sheath to the recovery roller 9, and finally, the cable sheath is wound on the recovery rod 29, thereby realizing the recovery and utilization of the cable sheath.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A cable core stripping device for electric power, characterized by comprising: the wire winding machine comprises a base (1) and a transverse plate (2) fixedly installed with a second upright post (4) through a first upright post (3), wherein a skin cutting mechanism is arranged on the first upright post (3), a pay-off roller (7) and a wire take-up roller (8) are fixedly installed on the base (1), a cable on the pay-off roller (7) is guided to the wire take-up roller (8) through a pulley assembly after being processed by the skin cutting mechanism, a motor (10) is arranged on one side of the second upright post (4), a rotating shaft (20) is rotatably installed at the output end of the motor (10), one end of the rotating shaft (20) is connected with a transmission assembly, the transmission assembly is connected with the wire take-up roller (8), the other end of the rotating shaft is connected with a peeling mechanism, and the peeling mechanism is arranged on one side of the skin cutting mechanism and connected with the output end of the motor (10;
the core stripping device for the electric power cable further comprises a recovery mechanism, wherein the recovery mechanism is installed on the base (1) and connected with the wire collecting roller (8).
2. An electric power cable stripping device according to claim 1, characterized in that the pulley assembly comprises a first pulley (5) and a first transmission pipe (11) fixedly mounted on the first upright (3), and a second pulley (6) and a second transmission pipe (12) fixedly mounted on the second upright (4).
3. The cable core stripping device for electric power according to claim 1, wherein the skin cutting mechanism comprises two mounting plates (18) fixedly mounted on the first upright (3), a fixed plate (19) fixedly mounted on the mounting plates (18), and a movable plate (17) hinged to the mounting plates (18), a cutter (13) is fixedly mounted at one end of the movable plate (17) far away from the mounting plates (18), and a first torsion spring (14) is arranged between the movable plate (17) and the fixed plate (19).
4. The cable stripping device for electric power according to claim 1, wherein the stripping mechanism comprises a slider-crank assembly, the slider-crank assembly comprises a rotary disc (24) mounted at one end of the rotary shaft (20) far away from the motor (10), a connecting rod (25) with one end rotatably mounted at the eccentric position of the rotary disc (24), a reciprocating member (26) mounted at the other end of the connecting rod (25), and a guide member (27) vertically slidably sleeved with the reciprocating member (26) and fixedly mounted on the transverse plate (2), and an elastic assembly is connected at one end of the reciprocating member (26) far away from the guide member (27).
5. An electric cable stripping device according to claim 4, characterized in that the elastic assembly comprises a first stripping plate (30) and a second stripping plate (31) rotatably mounted on the shuttle (26), and a second torsion spring (28) arranged between the first stripping plate (30) and the second stripping plate (31).
6. The cable stripping device for electric power according to claim 1, wherein the transmission assembly comprises a worm wheel (16) mounted on the second upright (4) and a worm (15) engaged with the worm wheel (16), wherein the worm (15) in the transmission assembly is connected with the rotating shaft (20) through a first transmission belt (21), and a second transmission belt (22) is connected between a rotating shaft of the worm wheel (16) and a take-up shaft of the take-up roller (8).
7. The cable stripping device for electric power according to claim 1, wherein the recovery mechanism comprises two recovery rollers (9) fixedly mounted on the base (1) and a third transmission belt (23) connecting the recovery rollers (9) and the take-up roller (8), and a recovery rod (29) is rotatably connected between the two recovery rollers (9).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011588489.0A CN112787270B (en) | 2020-12-29 | 2020-12-29 | Core stripping device for electric power cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011588489.0A CN112787270B (en) | 2020-12-29 | 2020-12-29 | Core stripping device for electric power cable |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112787270A true CN112787270A (en) | 2021-05-11 |
CN112787270B CN112787270B (en) | 2022-08-19 |
Family
ID=75753078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011588489.0A Active CN112787270B (en) | 2020-12-29 | 2020-12-29 | Core stripping device for electric power cable |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112787270B (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107946875A (en) * | 2017-11-21 | 2018-04-20 | 海宁瑞贝特五金制品有限公司 | A kind of wire stripper |
CN108023310A (en) * | 2018-01-29 | 2018-05-11 | 山东博发智能科技有限公司 | A kind of quick apparatus for peeling off of compression type cable |
CN109411163A (en) * | 2018-11-28 | 2019-03-01 | 陈小芹 | A kind of municipal administration cable recycling core skin separator |
CN209843399U (en) * | 2019-07-08 | 2019-12-24 | 陈展珠 | Old and useless cable wire stripping recovery unit |
CN211183171U (en) * | 2019-12-09 | 2020-08-04 | 台州浩然机械制造有限公司 | Wire cutting and stripping mechanism with wire twisting function |
-
2020
- 2020-12-29 CN CN202011588489.0A patent/CN112787270B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107946875A (en) * | 2017-11-21 | 2018-04-20 | 海宁瑞贝特五金制品有限公司 | A kind of wire stripper |
CN108023310A (en) * | 2018-01-29 | 2018-05-11 | 山东博发智能科技有限公司 | A kind of quick apparatus for peeling off of compression type cable |
CN109411163A (en) * | 2018-11-28 | 2019-03-01 | 陈小芹 | A kind of municipal administration cable recycling core skin separator |
CN209843399U (en) * | 2019-07-08 | 2019-12-24 | 陈展珠 | Old and useless cable wire stripping recovery unit |
CN211183171U (en) * | 2019-12-09 | 2020-08-04 | 台州浩然机械制造有限公司 | Wire cutting and stripping mechanism with wire twisting function |
Also Published As
Publication number | Publication date |
---|---|
CN112787270B (en) | 2022-08-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN212571928U (en) | Cable recovery unit for electric power construction | |
CN110350383A (en) | A kind of full-automatic wire stripping cutting facility | |
CN210309045U (en) | From type membrane laminating equipment | |
CN112787270B (en) | Core stripping device for electric power cable | |
CN109208084B (en) | Ramie decorticating method and reverse-pulling boning-off executing device of decorticating machine for implementing the method | |
CN112185632A (en) | Cable recovery plant | |
CN109888684B (en) | Peeling and impurity removing device for waste cables | |
CN113628811A (en) | Intelligent manufacturing device for cable inner armor | |
CN217318228U (en) | Fruit processing is with section device that denucleates | |
CN216871763U (en) | Transformer insulating tape winding device | |
CN212485988U (en) | Wire stripping device for automobile instrument panel cable | |
CN216609277U (en) | Board separator suitable for PCBs (printed circuit boards) of various sizes | |
CN109830871A (en) | Peeling machine and peeling method | |
CN215625691U (en) | Ultrasonic wave is cut tape unit and is used even material feeding unit | |
CN213185296U (en) | Wire stripping lamination equipment for wire harness production and processing | |
CN112864962B (en) | Automatic cable peeling device for electric power construction | |
CN212419455U (en) | Wire stripping device for wire shearing machine | |
CN209375028U (en) | A kind of waste and old cable peeling impurity removing device | |
CN114188798A (en) | Special wire stripping device for six-type non-shielded data jumper and using method thereof | |
CN114172001A (en) | High-performance wire harness production process | |
CN213532852U (en) | PE winding membrane production is with cutting device | |
CN220527566U (en) | Stripping machine for cable recovery | |
CN113263576A (en) | Osmanthus tree peeling equipment | |
CN211456505U (en) | Double-wire stripping equipment applied to HSD assembly | |
CN215624620U (en) | Material conveying device of ultrasonic belt cutting machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |