CN107565458B - Hand-operated wire tube threading device and threading method thereof - Google Patents
Hand-operated wire tube threading device and threading method thereof Download PDFInfo
- Publication number
- CN107565458B CN107565458B CN201710757364.8A CN201710757364A CN107565458B CN 107565458 B CN107565458 B CN 107565458B CN 201710757364 A CN201710757364 A CN 201710757364A CN 107565458 B CN107565458 B CN 107565458B
- Authority
- CN
- China
- Prior art keywords
- wire
- metal wire
- central shaft
- outlet
- hand
- 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.)
- Active
Links
Images
Landscapes
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention relates to a hand-operated wire tube threading device and a threading method thereof, wherein the threading device comprises a spiral metal wire, the metal wire is provided with a first end and a second end, and a spherical structure is formed at the first end; the confession is placed the box that holds of wire, the bottom that holds the box has seted up a confession the outlet that the first end of wire stretches out, the inside that holds the box is equipped with a rotatable crank, the wire twines in on the crank, through rotating the crank control receive and release of wire rotate the crank emits during the wire, the first end of wire stretches out the outlet stretches into until stretching out from the other end from the one end of wire tube, and then takes the ligature to connect electric wire on the wire passes the wire tube. The invention makes the end of the metal wire into a spherical structure to make the metal wire smoothly extend into the electric wire tube, thereby driving the electric wire to penetrate into the electric wire tube and saving materials and manpower.
Description
Technical Field
The invention relates to the technical field of building electrical construction, in particular to a hand-operated wire tube threading device and a threading method thereof.
Background
In the building construction, usually with the electric wire tube pre-buried in the building, wait to penetrate the electric wire intraductally again after the building construction finishes, however the electric wire is softer, is difficult to directly penetrate in tortuous electric wire tube. At present, a common method is that a ductile steel wire is firstly used for penetrating into an electric wire tube, and then an electric wire is connected to the tail part of the steel wire, so that the electric wire is brought into the electric wire tube.
However, even utilize the steel wire that has the ductility, because the frictional resistance of steel wire tip and electric wire pipe wall, the steel wire also is difficult to penetrate the electric wire tube smoothly, must be responsible for penetrating the steel wire from the electric wire tube head by two people, alone send, two people are responsible for pulling out the steel wire from the electric wire tube tail, so not only inefficiency, influence construction progress, still caused artificial waste, and the steel wire ductility through dragging is impaired, unable reuse, further caused the waste of material.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a hand-operated wire tube threading device and a threading method thereof, and can solve the problems that the existing method is low in efficiency, influences the construction progress and causes labor and material waste.
The technical scheme for realizing the purpose is as follows:
the invention provides a hand-operated wire tube threading device, which comprises:
a helically coiled wire having a first end and a second end, the first end defining a spherical configuration;
the confession is placed the box that holds of wire, the bottom that holds the box has seted up a confession the outlet that the first end of wire stretches out, the inside that holds the box is equipped with a rotatable crank, the wire twines in on the crank, through rotating the crank control receive and release of wire rotate the crank emits during the wire, the first end of wire stretches out the outlet stretches into until stretching out from the other end from the one end of wire tube, and then takes the ligature to connect electric wire on the wire passes the wire tube.
The wire winding device has the advantages that the containing box with the hand crank is adopted to coil the wire in the containing box, the end part of the wire is made into a spherical structure, and the end part extends out of the containing box and penetrates into the electric wire tube, so that the friction between the end part of the wire and the wall of the electric wire tube is reduced, the effect of quickly penetrating the wire into the electric wire tube by only one person is achieved, the construction progress is accelerated, the labor resources are saved, the ductility of the undrawn wire is not damaged, the undrawn wire can be recycled, and the material is saved.
The hand-operated type electric wire tube threading device is further improved in that the hand-operated handle comprises a central shaft, a handle part and a connecting rod connected between the central shaft and the handle part, the central shaft is rotatably supported in the containing box, the second end of the metal wire is fixed on the central shaft, the metal wire is wound on the central shaft, the handle part is supported at the opening at the top of the containing box and can rotate along the edge of the containing box, and the handle part is rotated to drive the central shaft to rotate, so that the metal wire is controlled to be wound and unwound.
The hand-operated type electric wire tube threading device is further improved in that a boss is arranged in the accommodating box, a recess is formed in the top surface of the boss, and the bottom of the central shaft is rotatably arranged in the recess, so that the hand-operated handle is rotatably arranged in the accommodating box.
The hand-operated wire tube threading device is further improved in that a knob is arranged at the wire outlet.
The hand-operated threading device for the wire conduit is further improved in that a grab handle is fixedly arranged on the side surface of the wire outlet.
The invention also provides a threading method of the hand-operated wire tube threading device, which comprises the following steps:
providing an electric wire, rotating the hand crank to pay out the metal wire so that a first end of the metal wire extends out of the wire outlet, and binding and connecting the end part of the electric wire to the part of the metal wire extending out of the wire outlet;
the first end of the metal wire extends into one end of a wire tube, the hand crank is continuously rotated to pay out the metal wire until the first end of the metal wire extends out of the other end of the wire tube;
releasing the binding connection between the electric wire and the metal wire;
and reversely rotating the hand crank to enable the metal wire to be retracted into the accommodating box.
The invention further improves the threading method of the hand-operated wire tube threading device, the hand-operated handle comprises a central shaft, a connecting rod and a handle part, and the metal wire coiled up by rotating the hand-operated handle is loosened by the following steps:
fixing the second end to the central shaft, rotating the handle part along the edge of the accommodating box, and rotating the handle part to drive the central shaft to rotate, so that the metal wire is coiled into a spiral shape around the central shaft or the coiled metal wire is loosened.
The hand crank comprises a central shaft, a handle part and a connecting rod connected between the central shaft and the handle part;
rotatably mounting the central shaft in the accommodating box;
securing a second end of the wire to the central shaft and winding the wire around the central shaft;
and the handle part is supported at the opening at the top of the accommodating box and can rotate along the edge of the accommodating box, and then the handle part is rotated to drive the central shaft to rotate, so that the metal wire can be controlled to be folded and unfolded.
In a further improvement of the threading method of the hand-operated wire tube threading device according to the present invention, the housing case includes:
and fixedly arranging a boss in the accommodating box, forming a recess on the top surface of the boss, and rotatably arranging the bottom of the central shaft in the recess, so that the central shaft can rotate freely.
The invention further improves the threading method of the hand-operated wire tube threading device, which also comprises the following steps: and providing a knob, and arranging the knob at the wire outlet.
The invention further improves the threading method of the hand-operated wire tube threading device, which also comprises the following steps: and providing a grab handle, and fixedly arranging the grab handle on the side surface of the outlet.
Drawings
Fig. 1 is a side view of the hand-operated wire tube threading device and the threading method thereof.
Fig. 2 is a top view of the hand-operated wire tube threading device and the accommodating box in the threading method thereof.
Description of reference numerals:
a metal wire 10; a first end 11; a housing box 20; an accommodation box body 21; the inverted cone structure 211; a tubular structure 212; a boss 213; a hand crank 22; a central shaft 221; a connecting rod 222; a handle 223; an outlet 23; a grip 24; a knob 25; a wire conduit 90.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the invention provides a hand-operated wire tube threading device which is used for threading a wire into a wire tube pre-buried in a building, has the characteristics of easiness in manufacturing, portability, turnover and the like, and solves the problems that the existing threading method is low in efficiency, influences the construction progress and causes labor and material waste.
The hand-operated wire tube threading device of the invention is explained below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the hand-operated wire tube threading device of the present invention comprises a wire 10 and a housing case 20.
Wherein, the wire 10 is coiled into a spiral structure, the wire has a first end 11 and a second end located at the center of the spiral, the first end 11 is formed with a spherical structure for reducing the friction between the end of the wire and the inner wall of the conduit 90 when the wire passes through the conduit 90, so that the wire 10 smoothly extends into the conduit 90. Preferably, the metal wire is a ductile steel wire.
The accommodation box 20 is used for accommodating the metal wire 10 and controlling the accommodation of the metal wire 10, and the accommodation box 20 comprises an accommodation box body 21, a hand crank 22, an outlet 23, a holding handle 24 and a knob 25.
The accommodating box body 21 comprises an inverted cone-shaped structure 211 positioned at the upper part, a cylindrical structure 212 fixedly arranged at the center of the bottom of the inverted cone-shaped structure 211 and a boss 213 fixedly arranged at the inner lower part of the inverted cone-shaped structure 211, wherein the inverted cone-shaped structure 211 and the cylindrical structure 212 are hollow and communicated with each other and are used for accommodating the spiral metal wire 10. A recess is formed on the upper surface of the boss 213 for connecting with the crank handle, and a through hole for the metal wire 10 to pass through is formed on the side. The metal wire 10 is wound on the hand crank 22, the first end 11 of the metal wire 10 penetrates through the through hole on the boss 213 and is placed in the boss 213, the through hole formed in the boss 213 plays a certain limiting and guiding role on the first end 11 of the metal wire 10, when the metal wire 10 is controlled to be discharged through the hand crank 22, the part of the metal wire 10 wound off from the hand crank 22 can move from the through hole to the wire outlet 23, and then the metal wire 10 can be discharged outwards; when the metal wire 10 is controlled to be recycled through the hand crank 22, the part of the metal wire 10, which is positioned outside the wire outlet 23, can enter the accommodating box 20 through the through hole and then be wound on the hand crank 22, so that the metal wire is recycled.
An outlet 23 opens in the center of the bottom of the tubular structure 212, and the first end 11 of the wire 10 protrudes from the outlet 23 out of the receptacle body 21. Preferably, the outlet 23 is provided with a tubular structure with one end through and hollow, ensuring that the wire 10 extends straight in the direction of the outlet 23 and determining the position where the wire 10 extends out of the housing box 20.
The hand lever 22 includes a center shaft 221 located at the center inside the housing box body 21, a lever portion 223 located at the edge of the housing box body 21, and a connecting rod 222 connected between the top end of the center shaft 221 and the bottom end of the lever portion 223. The bottom of the central shaft 221 is located in the recess of the boss 213 and is rotatably connected with the boss 213, the central shaft 221 is fixed with the second end of the metal wire 10, the metal wire 10 is wound on the central shaft 221, the handle 223 is supported at the top opening of the accommodating box 20 and is held by an applicator worker and rotates along the edge of the accommodating box body 21, and the central shaft 221 is driven to rotate by rotating the handle 223, so that the winding and unwinding of the metal wire are controlled. The handle 223 is shaken along the spiral direction of the metal wire 10, the connecting rod 222 drives the central shaft 221 to rotate along the spiral direction of the metal wire 10, so that the metal wire 10 is coiled into a spiral shape along the central shaft 221 as a center, and the first end 11 of the metal wire 10 is retracted into the containing box body 21 from the outlet 23; the handle 223 is swung in the opposite direction of the helix of the wire 10, and the central shaft 221 is rotated in the opposite direction of the helix of the wire 10 by the connecting rod 222, thereby discharging the first end 11 of the wire 10 from the outlet 23.
The handle 24 is fixedly arranged on the side surface of the tubular structure 212, so that a constructor can hold the accommodating box 20 conveniently, and preferably, a recess is formed on the handle 24 corresponding to the shape of a hand of the constructor, so that the comfort level of the constructor for holding the accommodating box by hand is improved.
The knob 25 is disposed at the outlet 23, and the knob 25 abuts against the wire at the outlet 23, so that the wire 10 extending out of the outlet 23 cannot return to the accommodating box 20, and the wire 10 is prevented from returning to the accommodating box 20 due to external force.
The threading method of the hand-operated wire tube threading device of the invention is explained below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the threading method of the hand-operated wire tube threading device of the present invention uses the hand-operated wire tube threading device described above, and the threading method includes:
providing an electric wire, rotating a hand crank 22 to pay out the metal wire 10 so that a first end of the metal wire 10 extends out of the outlet 23, and binding and connecting the end part of the electric wire to the part of the metal wire 10 extending out of the outlet 23;
the first end 11 of the metal wire 10 extends into one end of the wire tube 90, and the hand crank is continuously rotated to pay out the metal wire 10 until the first end 11 of the metal wire 10 extends out of the other end of the wire tube;
the binding connection between the electric wire and the metal wire 10 is released;
the hand lever 22 is rotated in the reverse direction to retract the wire 10 into the accommodation box 20.
The hand crank 22 comprises a central shaft 221, a handle 223 and a connecting rod 222 connected between the central shaft 221 and the handle 223;
the center shaft 221 is rotatably provided in the housing case 20;
fixing the second end of the wire 10 to the central shaft 221, and winding the wire 10 around the central shaft 221;
the handle 223 is supported at the top opening of the containing box 20 and can rotate along the edge of the containing box 20, and then the handle 223 is rotated to drive the central shaft 221 to rotate, thereby realizing the control of the retraction of the wire 10.
The rotatable installation of the center shaft 221 in the accommodation box 20 includes:
a boss 213 is fixedly installed inside the accommodating box 20, a recess is formed on the top surface of the boss 213, and the bottom of the central shaft 221 is rotatably installed in the recess, so that the central shaft 221 can rotate freely.
And providing a knob, and arranging the knob at the wire outlet.
A handle is provided and is fixedly arranged on the side surface of the outlet.
The sequence of using the stringing device is as follows: first, one hand holds the grip 24 and the other hand rocks the wire 10 in the opposite direction of the helix through the handle 223 of the hand crank 22, the handle 223 rotates the central shaft 221, the coiled wire 10 is loosened, the knob 25 is opened and the first end 11 of the wire 10 is pulled out of the outlet 23. Then, the end of the electric wire is wound around the portion of the wire 10 protruding out of the outlet 23, and the knob 25 is tightened to prevent the wire 10 from being retracted into the housing box 20, the first end 11 of the wire 10 is fed into the electric wire tube 90, the first end 11 can be quickly passed through the bent electric wire tube 90 due to the ductility of the wire 10 and the smooth surface of the spherical structure of the end, and the electric wire wound around the wire 10 is also carried into the electric wire tube 90 by passing the wire 10 through the electric wire tube 90, thereby completing the threading work. Finally, after threading, the connection between the electric wire and the metal wire is disconnected, and the metal wire 10 can be retracted into the accommodating box 20 by rotating the hand crank 22.
The hand-operated wire tube threading device and the threading method thereof have the beneficial effects that:
the adoption takes the crank, and makes the wire tip into spherical structure to reduce the friction of wire tip and electric wire pipe wall, reach only need alone can penetrate the effect in the electric wire pipe with the wire fast, accelerated the construction progress, saved artifical resource, and the wire ductility that does not drag is not impaired, but recycle, and then saved the material.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (4)
1. A hand formula wire tube threading device which characterized in that includes:
a helically coiled wire having a first end and a second end, the first end defining a spherical configuration;
the metal wire containing box is used for placing the metal wire, a wire outlet for the first end of the metal wire to extend out is formed in the bottom of the containing box, a rotatable hand crank is arranged inside the containing box, the metal wire is wound on the hand crank, the metal wire is controlled to be wound and unwound by rotating the hand crank, when the metal wire is emitted by rotating the hand crank, the first end of the metal wire extends out of the wire outlet and extends into the wire outlet from one end of a wire tube until extending out from the other end of the wire tube, and then an electric wire bound and connected to the metal wire is driven to penetrate through the wire tube;
the hand crank comprises a central shaft, a handle part and a connecting rod connected between the central shaft and the handle part, the central shaft is rotatably arranged in the containing box, the second end of the metal wire is fixed on the central shaft, the metal wire is wound on the central shaft, the handle part is supported at the opening at the top of the containing box and can rotate along the edge of the containing box, and the handle part is rotated to drive the central shaft to rotate, so that the metal wire is controlled to be stored and released;
the wire outlet is provided with a knob, and the knob is abutted against the metal wire at the wire outlet, so that the metal wire extending out of the wire outlet cannot return to the accommodating box;
the inside of the accommodating box is provided with a boss, the top surface of the boss is provided with a recess, and the bottom of the central shaft is rotatably arranged in the recess, so that the hand crank is rotatably arranged in the accommodating box; the side edge of the boss is provided with a through hole for the metal wire to pass through, a guide channel communicated with the through hole and used for accommodating part of the metal wire is formed in the boss, and the first end of the metal wire passes through the through hole and penetrates through the guide channel.
2. A hand-operated wire conduit threading device as claimed in claim 1, wherein a grip is fixedly provided on a side surface of the outlet.
3. A threading method using a hand-operated wire-tube threading device according to claim 1, characterized by the following steps:
the hand crank comprises a central shaft, a handle part and a connecting rod connected between the central shaft and the handle part, the second end is fixed on the central shaft, the handle part rotates along the edge of the containing box, the central shaft is driven to rotate by rotating the handle part, and therefore the metal wire is coiled into a spiral shape by taking the central shaft as a center or the coiled metal wire is loosened;
securing a second end of the wire to the central shaft and winding the wire around the central shaft;
the handle part is arranged at the opening at the top of the accommodating box and can rotate along the edge of the accommodating box, and then the handle part is rotated to drive the central shaft to rotate, so that the metal wire is controlled to be retracted;
providing an electric wire, rotating the hand crank to pay out the metal wire so that a first end of the metal wire extends out of the wire outlet, and binding and connecting the end part of the electric wire to the part of the metal wire extending out of the wire outlet;
the first end of the metal wire extends into one end of a wire tube, the hand crank is continuously rotated to pay out the metal wire until the first end of the metal wire extends out of the other end of the wire tube;
releasing the binding connection between the electric wire and the metal wire;
reversely rotating the hand crank to enable the metal wire to be retracted into the accommodating box;
providing a knob, arranging the knob at the wire outlet, and propping against the metal wire at the wire outlet through the knob so that the metal wire extending out of the wire outlet cannot return to the accommodating box;
a boss is fixedly arranged in the accommodating box, a recess is formed in the top surface of the boss, and the bottom of the central shaft is rotatably arranged in the recess, so that the central shaft can rotate freely; the side edge of the boss is provided with a through hole for the metal wire to pass through, a guide channel communicated with the through hole and used for accommodating part of the metal wire is formed in the boss, and the first end of the metal wire passes through the through hole and penetrates through the guide channel.
4. A method of threading a hand-operated conduit threading device as claimed in claim 3, further comprising: and providing a grab handle, and fixedly arranging the grab handle on the side surface of the outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757364.8A CN107565458B (en) | 2017-08-29 | 2017-08-29 | Hand-operated wire tube threading device and threading method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757364.8A CN107565458B (en) | 2017-08-29 | 2017-08-29 | Hand-operated wire tube threading device and threading method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107565458A CN107565458A (en) | 2018-01-09 |
| CN107565458B true CN107565458B (en) | 2020-09-01 |
Family
ID=60976158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710757364.8A Active CN107565458B (en) | 2017-08-29 | 2017-08-29 | Hand-operated wire tube threading device and threading method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107565458B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113300276B (en) * | 2021-07-27 | 2021-10-22 | 莫朗(江苏)电气有限公司 | Cable bracket |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87216502U (en) * | 1987-12-14 | 1988-07-27 | 王晓宇 | Device for passing electrical cable through tube |
| CN105000435A (en) * | 2015-06-09 | 2015-10-28 | 国网河南许昌县供电公司 | Automatic taking-up and paying-off system for power equipment |
| CN105633874A (en) * | 2016-02-29 | 2016-06-01 | 宿松恒达电气配件有限公司 | Junction box convenient to use |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1815433A (en) * | 1930-03-08 | 1931-07-21 | Thomas A Dunagan | Fish-tape reel and puller |
| JP2613054B2 (en) * | 1987-05-20 | 1997-05-21 | 三菱電線工業株式会社 | Inspection device for cable entry hole |
| DE4413247C2 (en) * | 1994-04-16 | 1996-02-15 | Cielker Werner | Device for storing and dispensing a flexible rod |
| EP1523793A1 (en) * | 2002-07-09 | 2005-04-20 | Markus Zeitler | Appliance for introducing flex into a cable sheath for the subsequent introduction of an electric cable |
| CN202817614U (en) * | 2012-10-24 | 2013-03-20 | 谢位强 | Full-automatic threader |
| CN204751743U (en) * | 2015-07-30 | 2015-11-11 | 福建信龙农产品开发有限公司 | But rolling hose |
| CN106516907A (en) * | 2015-09-23 | 2017-03-22 | 重庆市华旭能源科技有限公司 | Winding roll with moistureproof function |
| CN205407135U (en) * | 2016-02-26 | 2016-07-27 | 亓蔚然 | Spring lead wire ware |
-
2017
- 2017-08-29 CN CN201710757364.8A patent/CN107565458B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87216502U (en) * | 1987-12-14 | 1988-07-27 | 王晓宇 | Device for passing electrical cable through tube |
| CN105000435A (en) * | 2015-06-09 | 2015-10-28 | 国网河南许昌县供电公司 | Automatic taking-up and paying-off system for power equipment |
| CN105633874A (en) * | 2016-02-29 | 2016-06-01 | 宿松恒达电气配件有限公司 | Junction box convenient to use |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107565458A (en) | 2018-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5149056A (en) | Wire puller for electrical conduits | |
| US6056226A (en) | Caddy for electric extension cords | |
| US9676590B1 (en) | Axially-adjustable winder for flat-web, strand, hose, rope, electric cord or strings of holiday lights and so on | |
| CN107565458B (en) | Hand-operated wire tube threading device and threading method thereof | |
| US8615919B2 (en) | Deep water fishing rod and electric reel | |
| CN111776886A (en) | Cable winding and unwinding device and using method thereof | |
| CN202575527U (en) | A wire clamping and unwinding device used on an automatic winding machine | |
| CN113044680A (en) | Cable winding and unwinding devices who uses manpower sparingly | |
| KR102599955B1 (en) | Winding machine to assist fishing rod | |
| CN106629251A (en) | Pulling and coiling device | |
| US20240245043A1 (en) | Left handed fishing reel | |
| CN204737498U (en) | Unwinder | |
| US20160046462A1 (en) | System and method for automating line retraction on a reel | |
| CN205555743U (en) | Cable wire reel | |
| US11559052B2 (en) | Large arbor ice fishing tip-up spool | |
| CN213445530U (en) | Electric power engineering is with receiving line equipment | |
| CN210824874U (en) | Pay-off reel and pay-off device with same | |
| CN109256724B (en) | Wall electric concealed pipe threading method | |
| CN212769174U (en) | Cable winding and unwinding devices for building site | |
| CN221253409U (en) | Stranded wire convenient to rolling | |
| CN218909446U (en) | Fill electric pile cable fixed knot and construct | |
| JP2005169449A (en) | Welding wire storage vessel, and welding wire stored in vessel | |
| KR200421175Y1 (en) | Automatic pole shifter | |
| JPS62111879A (en) | Concrete feed hose storage device | |
| JP6497681B2 (en) | Winding drum and curtain opening / closing device |
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 |