CN114530811B - Ice and snow removing device of power transmission line - Google Patents
Ice and snow removing device of power transmission line Download PDFInfo
- Publication number
- CN114530811B CN114530811B CN202210254236.2A CN202210254236A CN114530811B CN 114530811 B CN114530811 B CN 114530811B CN 202210254236 A CN202210254236 A CN 202210254236A CN 114530811 B CN114530811 B CN 114530811B
- Authority
- CN
- China
- Prior art keywords
- plate
- snow
- rod
- positioning
- crossing frame
- 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
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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
-
- 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
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses an ice and snow removing device of a power transmission line, which comprises a pull rod and a crossing frame, wherein the crossing frame straddles an electric wire, the pull rod is connected with the lower end of the crossing frame, motors are arranged on two sides of the upper end of the crossing frame, a battery is arranged between the two motors, a beating mechanism and a snow sweeping wheel are detachably connected to an output shaft of the motor, and one end of the crossing frame is connected with a sweeping mechanism matched with the electric wire. The staff only need through the pull rod pulling forward can, need not raise the head all the time observe, and the device can be automatic with snow or ice sheet clean up on the electric wire, and is simple to use, convenient, has saved the labour greatly, has improved clearance speed and security moreover.
Description
Technical Field
The invention relates to the technical field of electric power rescue devices, in particular to an ice and snow removing device of a power transmission line.
Background
The power transmission line is realized by boosting the electric energy generated by the generator by using a transformer and accessing the electric energy into the power transmission line through control equipment such as a circuit breaker and the like. The power transmission line is divided into an overhead power transmission line and a cable line in a structural form. The overhead transmission line is composed of a line pole tower, a wire, an insulator, line hardware, a stay wire, a pole tower foundation, a grounding device and the like, and is erected on the ground.
In low-temperature rain and snow weather, when the weather is cold, a large amount of water is condensed on the surface of the lead to ice coating due to high humidity, and the freezing disaster of the power system is easily caused. When ice is covered, the tension on the two sides of the protection rod is unbalanced, and the falling impact load of the wire can occur to cause the rod to fall; the frozen wire can shrink when encountering cold, and the wind blows and causes vibration, and the wire can sometimes break because of not exceeding the heavy load, even if the wire is continuously waved for too long, the wire, the tower pole, the insulator and the like can be subjected to unbalanced impact to cause fatigue damage.
At present, ice and snow on the transmission line is removed mainly through the mode that the stock was strikeed, and in the operation in-process, the staff needs to continuously raise the head and look up, causes tiredly very easily, and the sleek weather road surface in addition can't look at the road easily to fall down at the low head during operation.
Disclosure of Invention
The invention aims at the defects in the prior art, and provides the ice and snow removing device for the power transmission line, which can automatically clean snow or ice layers on the power transmission line by pulling the pull rod to move forwards by a worker without always raising the head for observation, is simple and convenient to use, greatly saves labor force and improves cleaning speed and safety.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides an ice and snow remove device of transmission line, includes pull rod and span structure, span structure straddles on the electric wire, the pull rod is connected with the lower extreme of span structure, the upper end both sides of span structure all are equipped with the motor, are equipped with the battery between two motors, can dismantle on the output shaft of motor and be connected with and pat mechanism and snow removing wheel, the one end of span structure is connected with and electric wire complex cleaning mechanism.
Preferably, the crossing frame comprises a hanging plate and side plates, wherein the side plates are connected to two sides of the hanging plate, the motor is located at the upper end of the hanging plate, a protection plate located at one side of the motor is arranged on the side plates, the two ends of the hanging plate are arc mechanisms bent upwards, the inner side of the side plates is connected with a positioning plate, and a negative weight block is arranged at the outer side of the lower end of the side plate.
Preferably, the lower end face of the hanging plate is provided with a roller.
Preferably, the two ends of the positioning plate are provided with outwards bent guide plates, one side of the positioning plate is provided with a push rod connected with the side plate, one end of the push rod, which is far away from the positioning plate, is provided with a handle, the handle is positioned on the outer side of the side plate, and a spring is arranged between the positioning plate and the side plate.
Preferably, the push rod is provided with a positioning nut, and the positioning nut is positioned at the outer side of the side plate.
Preferably, the side plate is provided with a hanging hole, one end of the pull rod is provided with a hook rod matched with the hanging hole, and the hook rod is provided with a hook groove.
Preferably, a fixed beating mechanism and a shifting block of the snow removal wheel are connected to an output shaft of the motor, and a screw is connected to the shifting block.
Preferably, the beating mechanism comprises a rocker and a beating plate, one end of the rocker is provided with a mounting hole matched with the poking block, the other end of the rocker is connected with the beating plate through a rotating shaft, and crushing teeth are arranged on the side wall of the beating plate.
Preferably, the wheel surface of the snow removing wheel is provided with bristles, one side of the snow removing wheel is provided with a positioning groove matched with the shifting block, and the bottom of the positioning groove is provided with a shaft hole matched with the screw rod.
Preferably, the cleaning mechanism comprises a supporting rod, clamping plates and a hairbrush, wherein the supporting rod is connected with the side plates, the supporting rods on two sides are connected through connecting rods, the clamping plates are connected with the supporting rod through studs, adjusting nuts are arranged on the studs, and the hairbrush is arranged on one side of each clamping plate.
Compared with the prior art, the invention has the beneficial effects that:
1. when the electric wire cleaning device is operated, a worker only needs to pull the pull rod to move forwards, the head is not required to be lifted up all the time for observation, snow or ice on the electric wire can be automatically cleaned by the device, the electric wire cleaning device is simple and convenient to use, labor force is greatly saved, and cleaning speed and safety are improved.
2. According to the invention, the spanning frame spans over the electric wire, the weight blocks are arranged to ensure the stability of the electric wire, the device is ensured not to fall down laterally, meanwhile, the protection plate is arranged on the spanning frame, ice and snow are shielded and protected in the cleaning process, and the locating plate is arranged in the spanning frame, so that the electric wires with different diameters can be clamped and fixed, and the universality and the stability are improved.
3. According to the ice removing device, the ice layer is broken and is broken by adopting a rotary continuous beating mode, damage to an electric wire can be avoided, and the beating plate adopts a throwing mode, so that the beating force is increased, and the ice removing effect is improved.
4. The snow sweeping device continuously sweeps snow through the snow sweeping wheel, so that the continuity of snow sweeping is ensured, and the sweeping thoroughness is improved.
5. The invention is provided with the cleaning mechanism, so that the electric wires after snow sweeping and deicing can be further cleaned, the residual and ice blocks can be clearly kept, and the cleaning effect and the thoroughness are improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention in deicing;
FIG. 2 is a schematic view of the snow removing structure of the present invention;
FIG. 3 is a schematic view of the structure of the crossing frame and the sweeping mechanism;
FIG. 4 is a schematic view of a structure of a spanning frame;
FIG. 5 is a schematic view of a positioning plate;
FIG. 6 is a bottom view of the spanning frame;
FIG. 7 is a schematic diagram of the structure of the motor;
FIG. 8 is a schematic view of the structure of the cleaning mechanism;
FIG. 9 is a schematic diagram of the structure of the tie rod;
FIG. 10 is a schematic view of the structure of the flapping mechanism;
fig. 11 is a schematic structural view of the snow plow.
In the figure: 1-an electric wire; 2-protecting plates; 3-an electric motor; 301-shifting blocks; 302-a screw; 4-cell; 5-a cleaning mechanism; 501-supporting rods; 502-connecting rods; 503-stud; 504-adjusting the nut; 505-splints; 506-hairbrush; 6-a crossing frame; 601-hanging plate; 602-side plates; 603-a negative weight; 604-hanging holes; 605-positioning plate; 606-a spring; 607-positioning a nut; 608—push rod; 609-handle; 610-a roller; 611-a guide plate; 7-a pull rod; 701-hooking rod; 702-hooking grooves; 8-a beating mechanism; 801-mounting holes; 802-rocker; 803-rotating shaft; 804-beating the plate; 805-crushing teeth; 9-snow removal wheels; 901-brushing; 902-positioning grooves; 903-shaft hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-2, an ice and snow removing device for a transmission line 1 comprises a pull rod 7 and a crossing frame 6, wherein the crossing frame 6 straddles on the electric line 1, as shown in fig. 3, the lower end of the crossing frame 6 is provided with an opening, the electric line 1 is placed in the lower end of the crossing frame, the pull rod 7 is connected with the lower end of the crossing frame 6, two sides of the upper end of the crossing frame 6 are respectively provided with a motor 3, a battery 4 is arranged between the two motors 3, the battery 4 adopts a lithium battery 4, a beating mechanism 8 and a snow sweeping wheel 9 are detachably connected to an output shaft of the motor 3, the electric line is used according to a cleaning object, one end of the crossing frame 6 is connected with a sweeping mechanism 5 matched with the electric line 1, the sweeping mechanism 5 is positioned at the tail end, and after ice and snow are removed through the two motors 3, the sweeping mechanism 5 is cleaned finally.
As shown in fig. 4, the spanning frame 6 includes a hanging plate 601 and a side plate 602, two sides of the hanging plate 601 are connected with the side plate 602, a motor 3 is located at two ends of the hanging plate 601, a protection plate 2 located at one side of the motor 3 is arranged on the side plate 602, and the two motors 3 rotate positively, so that two flapping mechanisms 8 can flap two sides of an electric wire 1, the protection plate 2 mainly shields ice and snow, the ice and snow sputtering distance is prevented from being far away and injuring personnel, two ends of the hanging plate 601 are arc mechanisms which are bent upwards, so that the situation that the electric wire cannot move due to blocking of the ice and snow in the advancing process can be avoided, a positioning plate 605 is connected to the inner side of the side plate 602 and used for clamping and positioning the electric wires 1 with different diameters, and a negative weight 603 is arranged at the outer side of the lower end of the side plate 602, so that the spanning frame 6 can be stably hung on the electric wire 1 is ensured.
As shown in fig. 5-6, a roller 610 is arranged on the lower end surface of the hanging plate 601 to reduce friction during movement, guide plates 611 which are bent outwards are arranged at two ends of the positioning plate 605 to prevent collision during movement, a push rod 608 connected with the side plate 602 is arranged on one side of the positioning plate 605, a handle 609 is arranged at one end of the push rod 608 far away from the positioning plate 605, the handle 609 is positioned on the outer side of the side plate 602, a spring 606 is arranged between the positioning plate 605 and the side plate 602, the spring 606 can press the positioning plate 605 on an electric wire 1, meanwhile, the positioning plate 605 has a certain floating space, and the device can walk on the electric wire 1 with different ice layer thicknesses.
The push rod 608 is provided with a positioning nut 607, the positioning nut 607 is positioned outside the side plate 602, and the minimum distance between the positioning plates 605 can be limited by the positioning nut 607.
The side plate 602 is provided with a hanging hole 604, as shown in fig. 9, one end of the pull rod 7 is provided with a hook rod 701 matched with the hanging hole 604, the hook rod 701 is provided with a hook groove 702, and the hook rod 701 can be prevented from sliding in the hanging hole 604 at will by arranging the hook groove 702, so that the reliability in pulling is improved.
In order to facilitate the disassembly and assembly of the flapping mechanism 8 and the snow removal wheel 9 on the motor 3, as shown in fig. 7, a shifting block 301 for fixing the flapping mechanism 8 and the snow removal wheel 9 is connected to an output shaft of the motor 3, and a screw 302 is connected to the shifting block 301. Wherein, the liquid crystal display device comprises a liquid crystal display device,
as shown in fig. 10, the beating mechanism 8 includes a rocker 802 and a beating plate 804, one end of the rocker 802 is provided with a mounting hole 801 matched with the shifting block 301, after the rocker 802 is mounted on the shifting block 301, a nut is screwed on a screw 302 to fix the rocker 802, the other end of the rocker 802 is connected with the beating plate 804 through a rotating shaft 803, and a crushing tooth 805 is arranged on the side wall of the beating plate 804, wherein the length of the rocker 802 is multiple, and the selected requirements are that: when the flapping mechanism 8 rotates, the rocker 802 does not touch the ice layer, the flapping plate 804 needs to flap the ice layer, after the flapping plate 804 flaps the ice layer, the flapping plate 804 rotates along the rotating shaft 803, passes over the electric wire 1 under the driving of the rocker 802, after the flapping plate 804 passes over the electric wire 1, under the action of centrifugal force, the flapping plate 804 again keeps the state along the length direction of the rocker 802, and when the flapping plate rotates to the electric wire 1 again, the ice layer is flapped again, so that the ice layer is broken and knocked down.
As shown in fig. 11, bristles 901 are arranged on the wheel surface of the snow removing wheel 9, a positioning groove 902 matched with the shifting block 301 is arranged on one side of the snow removing wheel 9, a shaft hole 903 matched with the screw rod 302 is arranged at the bottom of the positioning groove 902, then a nut is screwed on the screw rod 302 to fix the snow removing wheel 9, and the snow removing wheel 9 rotates to remove snow at the upper end of the electric wire 1.
As shown in fig. 8, the cleaning mechanism 5 includes a supporting rod 501, a clamping plate 505 and a brush 506, the supporting rod 501 is connected with a side plate 602, the supporting rods 501 on two sides are connected through a connecting rod 502, the clamping plate 505 is connected with the supporting rod 501 through a stud 503, an adjusting nut 504 is arranged on the stud 503 and used for adjusting the position of the clamping plate 505, the brush 506 is arranged on one side of the clamping plate 505, the bristles of the brush 506 are longer, and the brushes 506 on two sides can wrap the electric wire 1 to realize comprehensive cleaning.
When the snow cleaning machine is used, when snow is cleaned, the snow cleaning wheel 9 is installed on the motor 3, then the crossing frame 6 is placed on the electric wire 1, the positioning plates 605 are adjusted, the two positioning plates 605 are close to the electric wire 1, the hairbrush 506 is adjusted, the hairbrush 506 is pressed on the electric wire 1, then the motor 3 is started, the hook rod 701 is inserted into the hanging hole 604, the crossing frame 6 is pulled to move forward through the pull rod 7, the snow on the upper end of the electric wire 1 is cleaned by the snow cleaning wheel 9, and residual snow on the electric wire 1 is cleaned by the cleaning mechanism;
when the ice layer is cleaned, the spanning frame 6 is installed on the electric wire 1, a rocker 802 with a proper length is selected, namely, the rocker 802 cannot touch the ice layer, after the beating mechanism 8 is installed, the positioning plate 605 and the hairbrush 506 are adjusted, the motor 3 is started, the spanning frame 6 is driven to advance through the pull rod 7, the beating mechanism 8 breaks and knocks down the ice layer, and finally, the residual ice cubes are cleaned through the cleaning mechanism.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (3)
1. The utility model provides an ice and snow remove device of transmission line, includes pull rod and span structure, its characterized in that: the electric wire is arranged on the crossing frame in a straddling mode, the pull rod is connected with the lower end of the crossing frame, motors are arranged on two sides of the upper end of the crossing frame, a battery is arranged between the two motors, a beating mechanism and a snow sweeping wheel are detachably connected to an output shaft of the motor, and a sweeping mechanism matched with the electric wire is connected to one end of the crossing frame;
the crossing frame comprises a hanging plate and side plates, wherein the side plates are connected to two sides of the hanging plate, the motor is located at the upper end of the hanging plate, a protection plate located at one side of the motor is arranged on the side plates, the two ends of the hanging plate are arc mechanisms bent upwards, the inner side of the side plates is connected with a positioning plate, a negative weight is arranged on the outer side of the lower end of the side plates, and a roller is arranged on the lower end face of the hanging plate; the two ends of the positioning plate are provided with outwards bent guide plates, one side of the positioning plate is provided with a push rod connected with the side plate, one end of the push rod, which is far away from the positioning plate, is provided with a handle, the handle is positioned at the outer side of the side plate, a spring is arranged between the positioning plate and the side plate, the push rod is provided with a positioning nut, and the positioning nut is positioned at the outer side of the side plate;
the output shaft of the motor is connected with a shifting block for fixing a beating mechanism and a snow sweeping wheel, the shifting block is connected with a screw rod, the beating mechanism comprises a rocker and a beating plate, one end of the rocker is provided with a mounting hole matched with the shifting block, the other end of the rocker is connected with the beating plate through a rotating shaft, and crushing teeth are arranged on the side wall of the beating plate;
the brush hair is arranged on the wheel surface of the snow removing wheel, a positioning groove matched with the shifting block is arranged on one side of the snow removing wheel, and a shaft hole matched with the screw rod is arranged at the bottom of the positioning groove.
2. The apparatus for removing ice and snow from an electric power transmission line according to claim 1, wherein: the side plate is provided with a hanging hole, one end of the pull rod is provided with a hook rod matched with the hanging hole, and the hook rod is provided with a hook groove.
3. The apparatus for removing ice and snow from an electric power transmission line according to claim 1, wherein: the cleaning mechanism comprises a supporting rod, clamping plates and a hairbrush, wherein the supporting rod is connected with the side plates, the supporting rods on two sides are connected through connecting rods, the clamping plates are connected with the supporting rod through studs, adjusting nuts are arranged on the studs, and the hairbrush is arranged on one side of each clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210254236.2A CN114530811B (en) | 2022-03-15 | 2022-03-15 | Ice and snow removing device of power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210254236.2A CN114530811B (en) | 2022-03-15 | 2022-03-15 | Ice and snow removing device of power transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114530811A CN114530811A (en) | 2022-05-24 |
| CN114530811B true CN114530811B (en) | 2023-08-08 |
Family
ID=81627201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210254236.2A Active CN114530811B (en) | 2022-03-15 | 2022-03-15 | Ice and snow removing device of power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114530811B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2132319A (en) * | 1935-03-06 | 1938-10-04 | Aluminum Ind Aktien Ges | Vibration damper |
| CN105610111A (en) * | 2016-03-01 | 2016-05-25 | 国网山东省电力公司章丘市供电公司 | Deicing apparatus for power transmission line |
| CN210007343U (en) * | 2019-06-06 | 2020-01-31 | 广东电网有限责任公司 | high-voltage line ground wire deicing device |
| CN112670934A (en) * | 2020-12-23 | 2021-04-16 | 华北电力大学 | Deicing robot for power transmission line |
| CN112821334A (en) * | 2021-01-07 | 2021-05-18 | 范永波 | Deicing protection device for transmission cable |
| CN112952720A (en) * | 2021-04-25 | 2021-06-11 | 鲁东大学 | High-voltage line defroster based on electronic jar is strikeed |
-
2022
- 2022-03-15 CN CN202210254236.2A patent/CN114530811B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2132319A (en) * | 1935-03-06 | 1938-10-04 | Aluminum Ind Aktien Ges | Vibration damper |
| CN105610111A (en) * | 2016-03-01 | 2016-05-25 | 国网山东省电力公司章丘市供电公司 | Deicing apparatus for power transmission line |
| CN210007343U (en) * | 2019-06-06 | 2020-01-31 | 广东电网有限责任公司 | high-voltage line ground wire deicing device |
| CN112670934A (en) * | 2020-12-23 | 2021-04-16 | 华北电力大学 | Deicing robot for power transmission line |
| CN112821334A (en) * | 2021-01-07 | 2021-05-18 | 范永波 | Deicing protection device for transmission cable |
| CN112952720A (en) * | 2021-04-25 | 2021-06-11 | 鲁东大学 | High-voltage line defroster based on electronic jar is strikeed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114530811A (en) | 2022-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110661201B (en) | Power transmission line cleaning device | |
| CN110601119B (en) | Ice and snow removing device for high-voltage transmission line | |
| CN115642553A (en) | High-voltage line defroster for electric power maintenance | |
| CN218124270U (en) | Deicing mechanism for power distribution network line | |
| CN111244866A (en) | Quick deicing post device of power transmission line | |
| CN217590183U (en) | Transmission line icing removing device | |
| CN114530811B (en) | Ice and snow removing device of power transmission line | |
| CN116093820A (en) | Deicing robot for high-voltage line | |
| CN212875257U (en) | Device for preventing freezing on high-voltage line | |
| CN215267394U (en) | Portable transmission line monitoring devices | |
| CN213547077U (en) | High altitude transmission line snow removing device | |
| CN213585098U (en) | High-voltage line defroster for electric power engineering | |
| CN217240271U (en) | Ice-coating-resistant roller device for power transmission line | |
| CN212772174U (en) | Deicing device for bridge ice hanger | |
| CN212982012U (en) | Cable take-up device | |
| CN108134358B (en) | Split type power transmission line deicing machine with barrier jumping detection function | |
| CN201365084Y (en) | Improved line runner | |
| CN112952718A (en) | High-voltage wire deicing device based on knocking and grinding linkage | |
| CN210693396U (en) | High tension transmission line defroster | |
| CN115102122B (en) | Deicing method for transmission line wire | |
| CN116137432B (en) | Ice cleaning machine for power transmission cable | |
| CN112821334A (en) | Deicing protection device for transmission cable | |
| CN112117730B (en) | Snow removing device for overhead transmission line | |
| CN215120053U (en) | High-voltage line defroster based on electronic jar is strikeed | |
| CN213585099U (en) | Deicing device for high-voltage transmission line |
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 |