CN116054033A - Portable peeler for submarine cable restoration - Google Patents

Portable peeler for submarine cable restoration Download PDF

Info

Publication number
CN116054033A
CN116054033A CN202211500154.8A CN202211500154A CN116054033A CN 116054033 A CN116054033 A CN 116054033A CN 202211500154 A CN202211500154 A CN 202211500154A CN 116054033 A CN116054033 A CN 116054033A
Authority
CN
China
Prior art keywords
rotating
shaped
rotating seat
groove
arc
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
Application number
CN202211500154.8A
Other languages
Chinese (zh)
Other versions
CN116054033B (en
Inventor
匡剑勋
陈国东
戚霞君
张志刚
张桓钟
袁舟龙
虞乾浩
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.)
Zhejiang Qiming Offshore Power Engineering Co ltd
Zhoushan Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
Zhejiang Qiming Offshore Power Engineering Co ltd
Zhoushan Power Supply Co of State Grid Zhejiang Electric Power 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 Zhejiang Qiming Offshore Power Engineering Co ltd, Zhoushan Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical Zhejiang Qiming Offshore Power Engineering Co ltd
Priority to CN202211500154.8A priority Critical patent/CN116054033B/en
Publication of CN116054033A publication Critical patent/CN116054033A/en
Application granted granted Critical
Publication of CN116054033B publication Critical patent/CN116054033B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/12Methods 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
    • H02G1/1202Methods 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
    • H02G1/1204Hand-held tools
    • H02G1/1221Hand-held tools the cutting element rotating about the wire or cable
    • H02G1/1224Hand-held tools the cutting element rotating about the wire or cable making a transverse cut
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/12Methods 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
    • H02G1/1202Methods 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
    • H02G1/1204Hand-held tools
    • H02G1/1236Features relating to cutting elements
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/12Methods 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
    • H02G1/1202Methods 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
    • H02G1/1204Hand-held tools
    • H02G1/1236Features relating to cutting elements
    • H02G1/1239Features relating to cutting elements the cutting element being a disc or a circular saw
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/82Recycling of waste of electrical or electronic equipment [WEEE]

Landscapes

  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)

Abstract

The invention discloses a portable peeler for submarine cable restoration, which belongs to the field of submarine cable restoration and has low submarine cable cutting efficiency at present; the invention comprises a first rotating seat and a second rotating seat which are hinged, wherein a plurality of supporting parts which are telescopic at the radial inner side are arranged on the first rotating seat, a plurality of expanding supporting parts which are telescopic at the radial inner side are arranged on the second rotating seat, and meanwhile, driving parts are arranged on the first rotating seat and the second rotating seat; the two driving parts are rotationally controlled to be respectively clamped on the first rotating seat and the second rotating seat in a staggered manner after the supporting parts and the expanding supporting parts extend inwards, and can be respectively locked with the first rotating seat and the second rotating seat in a sliding manner; the cutting part is installed on the inboard side of the second rotation seat, one end of the arc cutter that the cutting part includes can be to the radial inboard removal of the radial inboard control cutting depth of second rotation seat, installs the scale of demarcating cutting depth on the second rotation seat simultaneously, and this technical scheme realizes peeling the cutting to sea cable fast, convenient, high accuracy, improves the operating efficiency.

Description

Portable peeler for submarine cable restoration
Technical Field
The invention relates to the technical field of submarine cable repair equipment, in particular to a portable peeler for submarine cable repair.
Background
The sea cable is used for power generation and electric energy transmission of offshore power generation equipment or for civil and commercial power transmission of islands, is influenced by laying environment or ship equipment in the sea cable power supply process, sometimes causes damage to the sea cable due to external force factors, finally causes transmission faults, and breaks transmission to cause large economic loss.
The cable is cut to the damage point in the rush-repair process, the wire core with a certain length is required to be peeled and reserved for welding or lapping after cutting, the existing peeling is mainly used for cutting and peeling the outer insulation layer of the submarine cable through the cutting machine, the rotating cutting is difficult to be carried out in the cutting and peeling process due to the fact that the tenacity of the submarine cable is large, the submarine cable insulation layer is mainly used for carrying out 360-degree rotating cutting through a handheld cutting tool, once the force is uneven to control the wire core on the inner side of the submarine cable in the process, the damage is easily caused, the damage risk of the damage to the wire core is reduced only by slowing down the cutting speed, the rush-repair efficiency of the submarine cable is influenced by slowing down the cutting speed, and meanwhile, the wire core cannot be completely prevented from being cut, which is confusing the rush-repair operation personnel.
Based on the problems, the invention provides a portable peeler for submarine cable repair.
Disclosure of Invention
Aiming at the problems in the technical background, the invention aims to provide the portable peeler for sea cable repair, which is designed in an integrated way to realize the convenient, rapid and high-precision peeling of the sea cable, shorten the operation time, improve the operation efficiency and solve the problems that the prior art uses a cutting machine to peel the sea cable in the process of sea cable repair so as to easily damage a wire core accidentally, and is inconvenient to operate and low in efficiency.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the portable peeler for sea cable restoration comprises a first rotating seat and a second rotating seat, wherein the first rotating seat and the second rotating seat are semicircular, one end of the first rotating seat is hinged with one end of the second rotating seat, a circular ring is formed when the other end of the first rotating seat and the other end of the second rotating seat are closed, a plurality of supporting parts stretching radially inwards are arranged on the first rotating seat, a plurality of expanding supporting parts stretching radially inwards are arranged on the second rotating seat, driving parts are arranged on the first rotating seat and the second rotating seat simultaneously, and the two driving parts synchronously rotate to respectively control the supporting parts and the expanding supporting parts to stretch; after the two driving parts rotate and control the plurality of supporting parts and the plurality of expanding supporting parts to extend inwards, the two driving parts are clamped on the first rotating seat and the second rotating seat in a staggered manner, and the two driving parts can be respectively locked with the first rotating seat and the second rotating seat in a sliding manner; the cutting part is arranged on the inner side of the second rotating seat, one end of the arc-shaped cutter included in the cutting part can move towards the radial inner side of the second rotating seat to control the cutting depth, and meanwhile, the second rotating seat is provided with a graduated scale for calibrating the cutting depth.
In the technical scheme, the type of the faulty submarine cable and detailed parameters are determined before emergency repair, the thickness of the submarine cable insulating layer is determined according to the existing parameters, the first rotating seat and the second rotating seat are clamped on the submarine cable of the to-be-peeled locating point, then the arc-shaped cutters are extruded on the submarine cable by controlling the cutting portions, the driving portions on the two sides are controlled to rotate to respectively drive the supporting portions and the expanding supporting portions to extend along the radial inner sides of the first rotating seat and the second rotating seat, the peeler is mounted on the submarine cable, the two driving portions are respectively locked with the first rotating seat and the second rotating seat in a sliding mode, finally the cutting depth is adjusted through the cutting portions, the cutting accuracy is guaranteed by referring to the setting of the graduated scale, the insulating layers on the two sides of the cutting dents are extruded and expanded to the two sides by the arc-shaped cutters when the arc-shaped cutters cut the submarine cable insulating layer, the cutting depth of the front end is smaller than the rear end, the cutting motion is favorable for cutting progress under the cutting rotation, and the rotating resistance of the cutting dents is reduced, and the supporting portions are used for extruding the supporting portions on the side wall of the submarine cable, so that the cutting ring is not required to be cut, and the cutting accuracy is increased, namely the cutting accuracy is increased.
In the above technical scheme, further, radially be equipped with a plurality of T type expansion groove on the first seat that rotates, and the narrow limit in T type expansion groove runs through first seat medial surface that rotates, symmetry intercommunication is equipped with first through groove about the T type expansion groove middle part, just first through groove is followed first seat radial setting that rotates, slidable mounting on the T type expansion groove supporting part is used for rotating to support on the lateral wall of sea cable, this supporting part simultaneously the indent of cutting carries out extrusion expansion.
In the above technical scheme, still further, the supporting part includes T type frame, the T type frame is close to broadside one end symmetry about first actuating lever, first actuating lever outside end runs through the homonymy first groove of running through, T type frame narrow limit one end stretches out T type expansion groove, T type frame narrow limit one end symmetry is equipped with the flange about, upper and lower installation pivot on the flange, two first runners of symmetry about the pivot installation, be equipped with the anti-skidding line on the first runner face, T type frame narrow limit one end middle part indent is equipped with built-in groove, be inserted with the expansion block on the built-in groove, the inserted end of expansion block with be connected with the elastic component between the medial surface of built-in groove, the outside end of expansion block is connected in the radial outside of expansion block, the expansion block is circular, just the expansion block lateral wall is the cutting edge form, simultaneously be equipped with first spacing groove on the expansion block, run through first spacing groove, and two first runners are located the expansion block is located down.
In the above technical scheme, still further, be equipped with a plurality of U type grooves on the second rotation seat, the both ends in U type groove distributes from top to bottom, the both ends in U type groove run through the second rotates the seat medial surface, and towards the second rotates the seat axle center, the intercommunication is equipped with the second from top to bottom in U type groove middle part and runs through the groove, slidable mounting expansion supporting part on the U type groove, this expansion supporting part is in when the sea cable insulating layer is cut to arc cutter will cut indent both sides insulating layer to both sides extrusion expansion.
In the above technical scheme, still further, expansion supporting part includes U type frame, U type frame both ends stretch out the both ends in U type groove, U type frame both ends are equipped with first rotation groove through the indent and install the second runner, the cover is equipped with the rubber sleeve on the second runner, the radial one end shrink of rubber sleeve lateral wall straight line is from top to bottom the rubber sleeve shrink end sets up in opposite directions, the U type frame upper and lower symmetry is connected with the second actuating lever, the outside end of second actuating lever runs through the homonymy the second runs through the groove, the second runner with first runner inboard end is the same to first rotation seat center distance.
In the above technical scheme, still further, the drive portion includes the arc, the arc rotates the laminating and is in first rotation seat or on the lateral surface of second rotation seat, the upper and lower end symmetry of arc is connected with the sector plate, be equipped with a plurality of arc grooves on the sector plate, first actuating lever or the second actuating lever one-to-one inserts the homonymy in the arc groove, the arc drives the sector plate rotates the in-process, the sector plate drive first actuating lever or the second actuating lever is along first rotation seat or the radial removal of second rotation seat, two the arc that the drive portion includes is in first rotation seat with the rotation end of second rotation seat all is equipped with the second spacing groove, two simultaneously the sector plate that the drive portion includes and is located the top all is equipped with the breach in the adjacent end.
In the above technical scheme, still further, run through the installation screw thread section of thick bamboo on the arc, install first threaded rod on the screw thread section of thick bamboo, first threaded rod outside end is connected with the handle.
In the above technical scheme, still further, the second rotates the seat medial surface indent and is equipped with the arc sword groove, and this arc sword groove is located between the U type groove both ends, the second rotates the seat outside end and radially is equipped with the expansion tank, expansion tank top intercommunication is run through the pointer groove of second rotation seat top surface, pointer groove top one side is installed the scale, the radial outside end intercommunication of expansion tank runs through the screw hole of second rotation seat lateral surface, the one end rotation of arc cutter is installed and is being close to first rotation seat with the second rotates the arc sword inslot of seat articulated end one side, the other end inboard cutting edge of arc cutter to the second rotates the seat center extension, the expansion tank with install the control on the screw hole the arc cutter other end to the control piece that the second rotated seat center and removed.
In the above technical scheme, still further, the control piece is including rotating the connecting plate, arc cutter other end outside is equipped with the engaging lug, be equipped with on the engaging lug arc cutter other end removes reverse third and runs through the groove, rotate the connecting plate and rotate the engaging lug through rotating the bolt, rotate the bolt and run through the third and run through the groove, rotate the connecting plate other end and connect the connecting rod through rotating the joint, the connecting rod other end inboard is equipped with annular second and rotates the groove, rotate the bottom of installing the pointer on the groove of second, the pointer inserts the pointer groove, just the pointer top flushes with pointer groove top, the connecting rod other end is connected with the second threaded rod, the second threaded rod runs through and installs on the screw hole, second threaded rod outside end is connected with the knob.
In the above technical scheme, further, the second threaded rod runs through one side the second spacing groove that is equipped with on the arc, two in the drive portion rotation in-process, another the second spacing groove on the arc rotates the card income the second threaded rod.
Compared with the prior art, the invention has the following advantages:
according to the invention, the first rotating seat and the second rotating seat are set to be semicircular, one end of the first rotating seat is hinged with one end of the second rotating seat, the other end of the first rotating seat and the other end of the second rotating seat form a circular ring when being closed, a plurality of radially-inward telescopic supporting parts are arranged on the first rotating seat, a plurality of radially-inward telescopic expansion supporting parts are arranged on the second rotating seat, meanwhile, driving parts are arranged on the first rotating seat and the second rotating seat, and the two driving parts synchronously rotate to respectively control the expansion of the plurality of supporting parts and the plurality of expansion supporting parts; after the two driving parts rotate and control the plurality of supporting parts and the plurality of expanding supporting parts to extend inwards, the two driving parts are clamped on the first rotating seat and the second rotating seat in a staggered manner, and the two driving parts can be respectively locked with the first rotating seat and the second rotating seat in a sliding manner; a cutting part is arranged on the inner side of the second rotating seat, one end of an arc-shaped cutter included in the cutting part can move towards the radial inner side of the second rotating seat to control the cutting depth, and a graduated scale for calibrating the cutting depth is arranged on the second rotating seat;
the marine cable type and detailed parameters of faults can be determined before emergency repair, the thickness of a marine cable insulating layer is determined according to the existing parameters, the first rotating seat and the second rotating seat are clamped on a marine cable of a to-be-peeled locating point, then the arc-shaped cutters are extruded on the marine cable by controlling the cutting parts, then the driving parts on two sides are controlled to rotate to respectively drive the supporting parts and the expanding supporting parts to extend along the radial inner sides of the first rotating seat and the second rotating seat, the peeler is mounted on the marine cable, then the two driving parts are respectively locked with the first rotating seat and the second rotating seat in a sliding mode, finally the cutting depth is adjusted through the cutting parts, the setting is performed by referring to the graduated scale, the cutting precision is ensured, the arc-shaped cutters and the expanding supporting parts are arranged on the outer sides of the arc-shaped cutters to extrude and expand the insulating layer on two sides of the cutting dent when the marine cable insulating layer, the cutting front end cutting depth is smaller than the rear end of the arc-shaped cutters, the cutting process is facilitated under the cutting rotation, and simultaneously the supporting parts are used for rotating and supporting parts to rotate to support the supporting parts on the marine cable to extrude the supporting parts, the cutting ring is not required to be cut continuously, and the peeling precision is increased, namely the cutting ring is high, and the cutting precision is achieved.
Drawings
FIG. 1 is a first closed perspective view of a portable peeler for submarine cable restoration according to an embodiment of the present invention;
fig. 2 is a second closed perspective view of the portable peeler for submarine cable restoration according to the embodiment of the invention;
FIG. 3 is an open perspective view of a portable peeler for submarine cable restoration according to an embodiment of the present invention;
fig. 4 is a perspective view of a first rotating base, a supporting portion and a driving portion according to an embodiment of the present invention;
fig. 5 is a second perspective view of the first rotating base, the supporting portion and the driving portion according to the embodiment of the present invention;
FIG. 6 is a perspective view of a first rotary seat and a plurality of support portions according to an embodiment of the present invention;
FIG. 7 is a partial perspective view of a support provided by an embodiment of the present invention;
FIG. 8 is a perspective view of a second rotary seat, an expansion supporting part, a driving part and a cutting part according to an embodiment of the present invention;
FIG. 9 is a perspective view of a second rotary seat provided in an embodiment of the present invention, partially cut away, with a plurality of expansion support sections and a cutting section installed;
FIG. 10 is a partial cross-sectional, multiple expansion supports and cut-away perspective view of a second rotary seat according to an embodiment of the present invention;
FIG. 11 is a partial cutaway and cut-away perspective view of a second rotary seat according to an embodiment of the present invention;
fig. 12 is a partially enlarged perspective view of a cutting portion according to an embodiment of the present invention.
In the figure: 100. a first rotating seat; 110. a T-shaped expansion groove; 120. a first through slot; 200. a support part; 210. a first driving lever; 220. a T-shaped frame; 221. a convex plate; 222. a built-in groove; 230. a first wheel; 231. anti-skid lines; 232. a rotating shaft; 240. a telescopic block; 241. an expansion block; 242. a first limit groove; 250. an elastic member;
300. a driving section; 310. an arc-shaped plate; 311. the second limit groove; 320. a sector plate; 321. an arc-shaped groove; 330. a thread cylinder; 340. a first threaded rod; 341. a handle;
400. a second rotating seat; 410. arc-shaped knife slot; 420. a telescopic slot; 430. a pointer groove; 440. a threaded hole; 450. a graduated scale; 460. a U-shaped groove; 470. a second through groove;
500. an expansion support part; 510. a U-shaped frame; 511. a first rotating groove; 520. a second driving lever; 530. a second wheel; 540. a rubber sleeve;
600. a cutting section; 610. an arc-shaped cutter; 611. a connecting lug; 612. a third through groove; 620. rotating the connecting plate; 630. a rotary joint; 640. a connecting rod; 641. a second rotating groove; 650. a pointer; 660. a second threaded rod; 661. and (5) a knob.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
Example 1
As shown in fig. 1-12, the portable peeler for submarine cable repair comprises a first rotating seat 100 and a second rotating seat 400, wherein the first rotating seat 100 and the second rotating seat 400 are made of stainless steel materials and have the characteristic of high strength, the first rotating seat 100 and the second rotating seat 400 are in a semicircular shape, one end of the first rotating seat 100 is hinged with one end of the second rotating seat 400, and the other end of the first rotating seat 100 and the other end of the second rotating seat 400 form a circular ring when being closed;
the first rotating seat 100 is provided with a plurality of supporting parts 200 which stretch out and draw back radially inwards, the supporting parts 200 are used for rotating and supporting on the side wall of the submarine cable, meanwhile, the supporting parts 200 extrude and expand the cut dent, so that the cutting deviation can not occur in the axial movement in the rotating process, the cutting precision is improved, meanwhile, the supporting parts 200 also extrude the submarine cable, the rotating operation is stable, the second rotating seat 400 is provided with a plurality of expanding supporting parts 500 which stretch out and draw back radially inwards, the expanding supporting parts 500 extrude and expand the insulating layers at two sides of the cut dent to two sides when the arc-shaped cutter 610 cuts the insulating layer of the submarine cable, the cutting resistance is reduced gradually from shallow to deep, the progress of the rotating cutting is facilitated, the driving parts 300 are arranged on the first rotating seat 100 and the second rotating seat 400, and the two driving parts 300 synchronously rotate to respectively control the expansion of the supporting parts 200 and the expanding supporting parts 500;
after the two driving parts 300 rotate to control the plurality of supporting parts 200 and the plurality of expanding supporting parts 500 to extend inwards, the two driving parts 300 are clamped on the first rotating seat 100 and the second rotating seat 400 in a staggered way, and the two driving parts 300 can be respectively locked with the first rotating seat 100 and the second rotating seat 400 in a sliding way;
the driving part 300 functions as follows, and is first used to control the expansion and contraction of the plurality of supporting parts 200 or the plurality of expansion supporting parts 500; secondly, the rotating end of the rotated driving part 300 is clamped on the other rotating seat, so that the overall installation stability of the peeler is improved, the peeler cannot shake, and the cutting precision is ensured; the driving part 300 can also slide and lock with the first rotating seat 100 and the second rotating seat 400, namely, the peeler can be driven to integrally rotate by rotating the driving part 300, so that the manual operation is facilitated;
the cutting part 600 is installed at the inner side of the second rotating seat 400, one end of the arc-shaped cutter 610 included in the cutting part 600 can move towards the radial inner side of the second rotating seat 400 to control the cutting depth, meanwhile, the graduated scale 450 for calibrating the cutting depth is installed on the second rotating seat 400, the displacement distance from the inner side end of the arc-shaped cutter 610 to the center of the second rotating seat 400 is adjusted through the cutting part 600 according to the known thickness of the submarine cable insulating layer, so that the cutting depth is controlled, and the graduated scale 450 is matched to enable the preset cutting depth to be accurate, and no deviation occurs.
Operating and peeling principle of portable peeler for submarine cable repair:
determining the type and detailed parameters of a faulty submarine cable before emergency repair, determining the thickness of a submarine cable insulating layer according to the existing parameters, firstly clamping the first rotating seat 100 and the second rotating seat 400 on the submarine cable of a positioning point to be peeled, then enabling the arc-shaped cutter 610 to be extruded on the submarine cable by controlling the cutting part 600, avoiding the situation that the first rotating seat 100 and the second rotating seat 400 rotate along with each other when the driving part 300 is rotated, respectively driving the supporting parts 200 and the expansion supporting parts 500 to extend along the radial inner sides of the first rotating seat 100 and the second rotating seat 400 by controlling the driving parts 300 on two sides, enabling the peeler to be mounted on the submarine cable, enabling the driving parts 300 after rotation to form dislocation clamping, enabling the first rotating seat 100 and the second rotating seat 400 to be closed and stable, enabling the two driving parts 300 to be respectively locked with the first rotating seat 100 and the second rotating seat 400, finally adjusting the cutting depth by the cutting part 600, setting a scale, ensuring the cutting precision, and enabling the cutting precision to be improved by setting the arc-shaped cutter 610 and the supporting parts mounted on the outer sides of the arc-shaped cutter 610 to sequentially, enabling the cutting resistance to be increased when the two sides of the cutter 500 are cut off the side wall to be cut along with the radial inner sides of the first rotating seat 100 and the second rotating seat 400, and the rotating along with the radial inner sides of the supporting seat 400, and the rotating along with the expansion of the supporting seat, and the rotating seat is formed by the rotating, and the insulation layer, and the cutting sealing seat is stable, and the cutting resistance is reduced, and the cutting precision is cut;
in the operation steps, the cutting depth is selected according to the thickness of the submarine cable insulating layer, and the cutting depth can be set for multiple times and cut step by step.
As shown in fig. 4-6, a plurality of T-shaped expansion slots 110 are radially arranged on the first rotating seat 100, the radial inner side of the supporting portion 200 is prevented from stretching and separating by arranging the T-shaped expansion slots 110, the narrow sides of the T-shaped expansion slots 110 penetrate through the inner side surface of the first rotating seat 100, the middle parts of the T-shaped expansion slots 110 are vertically symmetrically communicated with each other to form first through slots 120, the first through slots 120 are radially arranged along the first rotating seat 100, the supporting portion 200 is slidably arranged on the T-shaped expansion slots 110, the supporting portion 200 is used for rotatably supporting the side wall of a submarine cable, the supporting portion 200 extrudes and expands the cut dent, the deviation of the cutting axial track is avoided, and the cutting stability is improved.
As shown in fig. 6 and 7, the supporting portion 200 includes a T-shaped frame 220, the T-shaped frame 220 is matched with the T-shaped expansion slot 110 to prevent the radial inner side of the T-shaped frame 220 from stretching out, the T-shaped frame 220 is symmetrically installed on the upper and lower sides of the end of the T-shaped frame 220 near the wide side, the outer side end of the first driving rod 210 penetrates through the first through slot 120 on the same side, the narrow side end of the T-shaped frame 220 extends out of the T-shaped expansion slot 110, and the radial movement of the T-shaped frame 220 is driven by controlling the radial movement of the first driving rod 210;
convex plates 221 are vertically symmetrically arranged at one end of the narrow side of the T-shaped frame 220, rotating shafts 232 are arranged on the upper convex plates 221 and the lower convex plates 221, two first rotating wheels 230 are vertically symmetrically arranged on the rotating shafts 232, anti-skid patterns 231 are arranged on the wheel faces of the first rotating wheels 230, an inner groove 222 is concavely formed in the middle of one end of the narrow side of the T-shaped frame 220, a telescopic block 240 is inserted in the inner groove 222, an elastic piece 250 is connected between the inserting end of the telescopic block 240 and the inner side face of the inner groove 222, the outer side end of the telescopic block 240 is connected to the radial outer side of the expanding block 241, the expanding block 241 is circular, the outer side wall of the expanding block 241 is in a blade shape, meanwhile, first limiting grooves 242 are arranged on the telescopic block 240, the rotating shafts 232 penetrate through the first limiting grooves 242, and the two first rotating wheels 230 are located in the telescopic block 240 in an up-down distribution mode;
through elasticity installation telescopic block 240, expansion block 241, receive extrusion effect telescopic block 240, expansion block 241 indentation in two first pulleys 230 when the installation, in the cutting process, when the cutting dent produced, elastic component 250 promoted telescopic block 240, expansion block 241 radially inboard removal for the cutting edge of expansion block 241 inserts in the cutting dent, realizes the purpose of rotation spacing and expansion cutting dent simultaneously from this, is convenient for follow-up arc cutter 610 screw in cutting.
As shown in fig. 10, the second rotating seat 400 is provided with a plurality of U-shaped grooves 460, the thickness of the outer communicating part of the U-shaped grooves 460 is greater than that of the expansion supporting part 500, the two ends of the U-shaped grooves 460 are distributed up and down, the two ends of the U-shaped grooves 460 penetrate through the inner side surface of the second rotating seat 400 and face the axis of the second rotating seat 400, the expansion supporting part 500 is ensured to be extruded and balanced by the expansion supporting part 500, the middle part of the U-shaped grooves 460 is provided with a second penetrating groove 470 in a vertical communicating way, the expansion supporting part 500 is slidingly installed on the U-shaped grooves 460, and when the arc-shaped cutters 610 cut sea cable insulating layers, the expansion supporting part 500 extrudes and expands the insulating layers at two sides of the cutting dents to two sides, so that the expansion supporting part is shallow and deep and gradually advanced, thereby reducing the cutting resistance and facilitating the progress of rotary cutting.
As shown in fig. 10, the expanding support part 500 includes a U-shaped frame 510, two ends of the U-shaped frame 510 extend out of two ends of the U-shaped groove 460, two ends of the U-shaped frame 510 are provided with a first rotating groove 511 through indent to mount a second rotating wheel 530, a rubber sleeve 540 is sleeved on the second rotating wheel 530, one end of the outer side wall of the rubber sleeve 540 is contracted along the radial direction, the contracting ends of the upper and lower rubber sleeves 540 are oppositely arranged, the U-shaped frame 510 is vertically and symmetrically connected with a second driving rod 520, the outer side ends of the second driving rod 520 penetrate through a second penetrating groove 470 on the same side, the distance from the inner side end of the second rotating wheel 530 to the center of the first rotating seat 100 is the same, the rubber sleeve 540 has a sea cable extruding condition by setting the same distance, and the unique shape of the rubber sleeve 540 is set, so that when sea cables are extruded, the two rubber sleeves 540 want to gradually increase the outer side thickness, the extrusion force is increased, thereby realizing circumferential outer extrusion force to sea cables on two sides of cutting pits, and expanding the cutting pits.
As shown in fig. 1-10, the driving portion 300 includes an arc plate 310, the arc plate 310 is rotationally attached to the outer side surface of the first rotating seat 100 or the second rotating seat 400, the upper end and the lower end of the arc plate 310 are symmetrically connected with a sector plate 320, a plurality of arc grooves 321 are formed on the sector plate 320, the first driving rod 210 or the second driving rod 520 is correspondingly inserted into the arc grooves 321 on the same side one by one, during the rotation process of the sector plate 320 driven by the arc plate 310, the first driving rod 210 or the second driving rod 520 is driven by the sector plate 320 to radially move along the first rotating seat 100 or the second rotating seat 400, two arc plates 310 included by the two driving portions 300 are respectively provided with a second limiting groove 311 at the rotating ends of the first rotating seat 100 and the second rotating seat 400, simultaneously, two sector plates 320 located above are respectively provided with notches at the adjacent ends, the two sector plates 320 are driven to rotate by the control arc plate 310, and the plurality of arc grooves 321 on the sector plate 320 push the first driving rod 210 or the second driving rod 520 inserted into the inner side to radially expand or contract the first driving rod 210 or the second driving rod 520, thereby realizing the purpose of radially expanding the first driving rod or the second driving rod, and realizing the purpose of radially expanding driving and the driving rod.
As shown in fig. 4 and 5, the arc-shaped plate 310 is provided with a threaded cylinder 330 in a penetrating manner, the threaded cylinder 330 is provided with a first threaded rod 340, the outer end of the first threaded rod 340 is connected with a handle 341, the first threaded rod 340 is driven by the rotating handle 341 to be inserted into the threaded cylinder 330, the inner end of the first threaded rod 340 extrudes the first rotating seat 100 or the second rotating seat 400, the purpose of controlling the relative rotation of the arc-shaped plate 310 and the first rotating seat 100 or the second rotating seat 400 is achieved, and therefore integral combination locking is achieved, meanwhile, the handle 341 can also serve as a rotating driving rod during rotary cutting, and the integral rotation of the peeler can be controlled by manually rotating the handle 341.
As shown in fig. 10-12, an arc-shaped knife slot 410 is concavely arranged on the inner side surface of the second rotating seat 400, and the arc-shaped knife slot 410 is positioned between two ends of the U-shaped slot 460, so that in the rotating process of the expanding support part 500, the second rotating wheel 530 which is arranged up and down and the rubber sleeve 540 which is arranged on the second rotating wheel 530 are axially and externally extruded on the sea cable at two sides of the cutting dent, thereby realizing the purpose of expanding the cutting dent;
the outer side end of the second rotating seat 400 is radially provided with a telescopic groove 420, the top of the telescopic groove 420 is communicated with a pointer groove 430 penetrating through the top surface of the second rotating seat 400, one side of the top of the pointer groove 430 is provided with a graduated scale 450, the warp-wise outer side end of the telescopic groove 420 is communicated with a threaded hole 440 penetrating through the outer side surface of the second rotating seat 400, one end of an arc cutter 610 is rotatably arranged in the arc cutter groove 410 near one side of the hinged ends of the first rotating seat 100 and the second rotating seat 400, the inner side edge of the other end of the arc cutter 610 extends towards the center of the second rotating seat 400, the telescopic groove 420 and the threaded hole 440 are provided with a control piece for controlling the other end of the arc cutter 610 to move towards the center of the second rotating seat 400, the control piece comprises a rotating connecting plate 620, the outer side of the other end of the arc cutter 610 is provided with a connecting lug 611, the connecting lug 611 is provided with a third penetrating groove 612 for the other end of the arc cutter 610 to move reversely, the rotating connecting lug 611 is rotated through a rotating bolt, the rotating bolt penetrates through the third penetrating groove 612, the other end of the rotating connecting plate 620 is connected with the connecting rod 640 through the rotating joint 630, the inner side of the other end of the connecting rod 640 is provided with a ring-shaped second rotating groove 641, the bottom end of the pointer 650 is rotatably arranged on the second rotating groove 641, the pointer 650 is inserted into the pointer groove 430, the top end of the pointer 650 is flush with the top end of the pointer groove 430, the reading of the graduated scale 450 corresponding to the pointer 650 is the cutting depth of the rotating end of the arc-shaped cutter 610, the other end of the connecting rod 640 is connected with a second threaded rod 660, the second threaded rod 660 penetrates through and is arranged on the threaded hole 440, the outer side end of the second threaded rod 660 is connected with a knob 661, the threaded hole 440 is driven to rotate by the rotating knob 661, the radial inner side or the outer side of the threaded hole 440 moves to drive the connecting rod 640, the connecting rod 640 drives the pointer 650 and the inner rotating joint 630, the rotating connecting plate 620 and the connecting lug 611 to move radially, thereby realizing the purpose of controlling the cutting depth by driving one end of the arc-shaped cutter 610 to rotate towards the center of the submarine cable through the connecting lug 611.
As shown in fig. 1, the second threaded rod 660 penetrates through a second limiting groove 311 formed in one side of the arc-shaped plate 310, and in the rotation process of the two driving parts 300, the second limiting groove 311 formed in the other arc-shaped plate 310 is rotationally clamped into the second threaded rod 660, and the corresponding second limiting groove 311 is formed in the opening end of the peeler through the two arc-shaped plates 310, so that the second threaded rod 660 is prevented from abutting in the rotation process.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a sea cable is restoreed and is used portable peeler, includes first rotation seat (100) and second rotation seat (400), first rotation seat (100) with second rotation seat (400) are semicircle annular, just one end of first rotation seat (100) with one end of second rotation seat (400) articulates, the other end of first rotation seat (100) with the other end of second rotation seat (400) forms a ring when closed, at its characterized in that:
a plurality of supporting parts (200) stretching radially inwards are arranged on the first rotating seat (100), a plurality of expanding supporting parts (500) stretching radially inwards are arranged on the second rotating seat (400), meanwhile, driving parts (300) are arranged on the first rotating seat (100) and the second rotating seat (400), and the two driving parts (300) synchronously rotate to respectively control the plurality of supporting parts (200) and the plurality of expanding supporting parts (500) to stretch;
after the two driving parts (300) rotate to control the plurality of supporting parts (200) and the plurality of expanding supporting parts (500) to extend inwards, the two driving parts (300) are clamped on the first rotating seat (100) and the second rotating seat (400) in a staggered way, and the two driving parts (300) can be respectively locked with the first rotating seat (100) and the second rotating seat (400) in a sliding way;
the cutting part (600) is arranged on the inner side of the second rotating seat (400), one end of an arc-shaped cutter (610) included in the cutting part (600) can move towards the radial inner side of the second rotating seat (400) to control the cutting depth, and meanwhile, a graduated scale (450) for calibrating the cutting depth is arranged on the second rotating seat (400).
2. The portable peeler for submarine cable repair according to claim 1, wherein a plurality of T-shaped telescopic grooves (110) are radially formed in the first rotating base (100), narrow sides of the T-shaped telescopic grooves (110) penetrate through inner side surfaces of the first rotating base (100), first penetrating grooves (120) are symmetrically formed in the middle of the T-shaped telescopic grooves (110) in a vertically communicated mode, the first penetrating grooves (120) are radially formed in the first rotating base (100), supporting portions (200) are slidably mounted on the T-shaped telescopic grooves (110), the supporting portions (200) are used for being rotatably supported on side walls of a submarine cable, and meanwhile the supporting portions (200) squeeze and expand cut dents.
3. The portable peeler for submarine cable repair according to claim 2, wherein the supporting portion (200) comprises a T-shaped frame (220), a first driving rod (210) is symmetrically installed up and down near a wide side end of the T-shaped frame (220), an outer side end of the first driving rod (210) penetrates through the first penetrating groove (120) on the same side, one narrow side end of the T-shaped frame (220) extends out of the T-shaped telescopic groove (110), a convex plate (221) is symmetrically installed up and down at one narrow side end of the T-shaped frame (220), a rotating shaft (232) is installed on the upper and lower convex plates (221), two first rotating wheels (230) are symmetrically installed up and down at the rotating shaft (232), anti-skidding grooves (231) are formed on the wheel surface of the first rotating wheels (230), an inner groove (222) is formed in a concave mode in the middle of one narrow side end of the T-shaped frame (220), a telescopic block (240) is inserted into the inner groove (222), a connecting piece (241) between the inserting end of the telescopic block (240) and the inner side surface of the inner groove (222), the telescopic block (240) is connected with a circular expansion block (240), the expansion block (242) is connected with the outer side wall (242) in a radial expansion block (240) and the expansion block (240) is formed on the outer side surface of the expansion block (242), and two first rotating wheels (230) are arranged on the telescopic blocks (240) in a vertical distribution mode.
4. The portable peeler for submarine cable repair according to claim 3, wherein a plurality of U-shaped grooves (460) are formed in the second rotating base (400), two ends of each U-shaped groove (460) are vertically distributed, two ends of each U-shaped groove (460) penetrate through the inner side surface of the second rotating base (400) and face the axis of the second rotating base (400), a second penetrating groove (470) is formed in the middle of each U-shaped groove (460) in a vertically communicating mode, an expansion supporting portion (500) is slidably mounted on each U-shaped groove (460), and when the arc-shaped cutter (610) cuts a submarine cable insulating layer, the expansion supporting portion (500) extrudes and expands insulating layers on two sides of a cutting dent.
5. The portable peeler for sea cable repair according to claim 4, wherein the expansion supporting portion (500) comprises a U-shaped frame (510), two ends of the U-shaped frame (510) extend out of two ends of the U-shaped groove (460), two ends of the U-shaped frame (510) are provided with first rotating grooves (511) through indent to install second rotating wheels (530), rubber sleeves (540) are sleeved on the second rotating wheels (530), one end of an outer side wall of each rubber sleeve (540) is contracted, the contracted ends of the upper and lower rubber sleeves (540) are oppositely arranged, the outer ends of the U-shaped frame (510) are connected with second driving rods (520) in an up-down symmetrical mode, the outer ends of the second driving rods (520) penetrate through the second penetrating grooves (470) on the same side, and the distances from the inner side ends of the second rotating wheels (530) to the center of the first rotating seat (100) are the same.
6. The portable peeler for sea cable repair according to claim 5, wherein the driving portion (300) comprises an arc-shaped plate (310), the arc-shaped plate (310) is rotationally attached to the outer side surface of the first rotating seat (100) or the second rotating seat (400), the upper end and the lower end of the arc-shaped plate (310) are symmetrically connected with a sector-shaped plate (320), a plurality of arc-shaped grooves (321) are formed in the sector-shaped plate (320), the first driving rod (210) or the second driving rod (520) is correspondingly inserted into the arc-shaped grooves (321) on the same side one by one, the arc-shaped plate (310) drives the sector-shaped plate (320) to rotate, the sector-shaped plate (320) drives the first driving rod (210) or the second driving rod (520) to radially move along the first rotating seat (100) or the second rotating seat (400), two arc-shaped plates (310) included in the two driving portion (300) are respectively provided with two notches at the two rotating ends (311) of the first rotating seat (100) and the second rotating seat (400) respectively, and the two arc-shaped plates (300) are simultaneously provided with two notches at the two adjacent rotating ends (320).
7. The portable peeler for submarine cable repair according to claim 6, wherein the arc-shaped plate (310) is provided with a threaded cylinder (330) in a penetrating mode, the threaded cylinder (330) is provided with a first threaded rod (340), and the outer side end of the first threaded rod (340) is connected with a handle (341).
8. The portable peeler for sea cable repair according to claim 7, wherein an arc-shaped knife groove (410) is concavely arranged on an inner side surface of the second rotating seat (400), the arc-shaped knife groove (410) is located between two ends of the U-shaped groove (460), a telescopic groove (420) is radially arranged on an outer side end of the second rotating seat (400), a pointer groove (430) penetrating through the top surface of the second rotating seat (400) is communicated with the top of the telescopic groove (420), the graduated scale (450) is installed on one side of the top of the pointer groove (430), a threaded hole (440) penetrating through the outer side surface of the second rotating seat (400) is communicated with an outer side end of the telescopic groove (420), one end of the arc-shaped knife (610) is rotatably installed in the arc-shaped knife groove (410) close to one side of a hinged end of the first rotating seat (100) and the second rotating seat (400), the other end inner side of the arc-shaped knife (610) extends towards the center of the second rotating seat (400), and a knife edge (420) and a threaded hole (440) are installed on the other end of the arc-shaped knife (610) to control center of the second rotating seat (400).
9. The portable peeler for sea cable repair according to claim 8, wherein the control member comprises a rotating connecting plate (620), a connecting lug (611) is arranged on the outer side of the other end of the arc-shaped cutter (610), a third penetrating groove (612) which is opposite to the movement of the other end of the arc-shaped cutter (610) is arranged on the connecting lug (611), the rotating connecting plate (620) rotates through the rotating bolt to connect the connecting lug (611), the rotating bolt penetrates through the third penetrating groove (612), the other end of the rotating connecting plate (620) is connected with a connecting rod (640) through a rotating joint (630), an annular second rotating groove (641) is arranged on the inner side of the other end of the connecting rod (640), the bottom end of a pointer (650) is rotatably arranged on the second rotating groove (641), the pointer (650) is inserted into the pointer groove (430), the top end of the pointer (650) is flush with the top end of the pointer groove (430), the other end of the connecting rod (640) is connected with a second threaded rod (660), the second threaded rod (660) penetrates through and is arranged on the threaded hole (440), and the outer side end of the second threaded rod (660) is connected with a knob (661).
10. The portable peeler for submarine cable repair according to claim 9, wherein the second threaded rod (660) penetrates through a second limit groove (311) formed in one of the arcuate plates (310), and the second limit groove (311) formed in the other arcuate plate (310) is rotationally engaged with the second threaded rod (660) during rotation of the two driving portions (300).
CN202211500154.8A 2022-11-28 2022-11-28 Portable peeler for submarine cable restoration Active CN116054033B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211500154.8A CN116054033B (en) 2022-11-28 2022-11-28 Portable peeler for submarine cable restoration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211500154.8A CN116054033B (en) 2022-11-28 2022-11-28 Portable peeler for submarine cable restoration

Publications (2)

Publication Number Publication Date
CN116054033A true CN116054033A (en) 2023-05-02
CN116054033B CN116054033B (en) 2023-09-15

Family

ID=86123186

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211500154.8A Active CN116054033B (en) 2022-11-28 2022-11-28 Portable peeler for submarine cable restoration

Country Status (1)

Country Link
CN (1) CN116054033B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203415911U (en) * 2013-07-10 2014-01-29 国家电网公司 Portable manual-cable outer-sheath vertical and horizontal cutter
CN107947037A (en) * 2017-12-05 2018-04-20 中国神华能源股份有限公司 Cable device for peeling
CN113594975A (en) * 2021-08-23 2021-11-02 广东电网有限责任公司 Cable insulation layer girdling machine
CN215816800U (en) * 2021-08-19 2022-02-11 山东众泰电缆有限公司 Processing device for radio frequency cable
CN216625125U (en) * 2021-11-02 2022-05-27 广东汇盈电力工程有限公司 Cable peeling device
CN114883983A (en) * 2022-05-31 2022-08-09 江苏博之旺自动化设备有限公司 Coaxial cable rotary cutting mechanism and wire cutting method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203415911U (en) * 2013-07-10 2014-01-29 国家电网公司 Portable manual-cable outer-sheath vertical and horizontal cutter
CN107947037A (en) * 2017-12-05 2018-04-20 中国神华能源股份有限公司 Cable device for peeling
CN215816800U (en) * 2021-08-19 2022-02-11 山东众泰电缆有限公司 Processing device for radio frequency cable
CN113594975A (en) * 2021-08-23 2021-11-02 广东电网有限责任公司 Cable insulation layer girdling machine
CN216625125U (en) * 2021-11-02 2022-05-27 广东汇盈电力工程有限公司 Cable peeling device
CN114883983A (en) * 2022-05-31 2022-08-09 江苏博之旺自动化设备有限公司 Coaxial cable rotary cutting mechanism and wire cutting method thereof

Also Published As

Publication number Publication date
CN116054033B (en) 2023-09-15

Similar Documents

Publication Publication Date Title
CN105071194A (en) Wire-stripping machine equipped with three-cutter type stripping mechanism
CN204885800U (en) Adopt wire stripping machine of three sword formula broach mechanisms
CN116054033B (en) Portable peeler for submarine cable restoration
CN216016299U (en) Cable processing is with synthesizing mechanism
CN211248538U (en) Automatic pipe cutting machine that uses of new forms of energy lithium cell thin wall aluminum hull production
CN111786321A (en) Adjustable cable device of skinning
CN107327656A (en) A kind of self-propelled inner-walls of duct maintenance all-in-one and its traveling method
CN116260080B (en) Handheld cable peeler
CN214227644U (en) Adjustable cable device of skinning
CN111451552B (en) Device, drill bit and screw tap structure of adjustable drilling depth
CN210517618U (en) Chamfering device
CN112846334A (en) Vertical multi-tooth saw blade milling cutter
CN214899856U (en) Electrician's sword is peeled off to cable sheath
CN212734201U (en) Adjustable boring cutter
CN218713417U (en) Ditch opening device
CN220421300U (en) Wire rod crust circular cutting stripping device
CN116706784B (en) Sea cable cutter
CN210628958U (en) A electric wire crust cutting means for job site
CN217168768U (en) Slitting device for high-temperature color separating belt
CN220638242U (en) Die cutting tool structure convenient for replacing tool bit
CN217155875U (en) Sampling device for protective aluminum plug
CN218947800U (en) Cutting device is used in insulating tape production
CN219987800U (en) Cutting device for producing polyolefin large-caliber pipeline
CN114030025B (en) Full-automatic variable-pitch slitting mechanism and full-automatic variable-pitch method
CN220480999U (en) Cutter conversion device for pipe die cutting

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