CN116291536B - Conical spiral power numerical control push bench - Google Patents
Conical spiral power numerical control push bench Download PDFInfo
- Publication number
- CN116291536B CN116291536B CN202310283580.9A CN202310283580A CN116291536B CN 116291536 B CN116291536 B CN 116291536B CN 202310283580 A CN202310283580 A CN 202310283580A CN 116291536 B CN116291536 B CN 116291536B
- Authority
- CN
- China
- Prior art keywords
- annular bin
- numerical control
- section shell
- push bench
- control push
- 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
- 239000002689 soil Substances 0.000 claims abstract description 38
- 238000005520 cutting process Methods 0.000 claims abstract description 27
- 238000010276 construction Methods 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/11—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses a conical spiral power numerical control push bench, which belongs to the technical field of push pipe construction and comprises the following components: the device comprises an annular bin, a middle section shell, a shaft head, a main shaft, a motor, a cutting device and a conveying device; the annular bin is fixedly connected with the shaft head, the shaft head is connected with one end of the main shaft, the shaft head rotates along with the rotation of the main shaft, the other end of the main shaft is inserted into the middle section shell and is connected with the output end of the motor, the motor is arranged in the middle section shell, the outer side of the annular bin is fixedly connected with the cutting device, a plurality of conveying baffles are obliquely arranged in the circumferential direction of the annular bin, and the conveying baffles are used for conveying soil at the bottom of the annular bin to the top of the annular bin and falling; the device has the advantages of simple and compact structure and high soil discharging efficiency.
Description
Technical Field
The invention belongs to the technical field of pipe jacking construction, and particularly relates to a conical spiral power numerical control pipe jacking machine.
Background
In modern urban construction, pipeline construction is often required in downtown areas, and in order to solve the problems of damage to urban buildings and blockage of road traffic caused by pipeline construction, a non-excavation technology for directly excavating underground is invented, and a pipe jacking machine is one of important equipment used for the non-excavation technology. The pipe jacking machine mainly utilizes the theory of air pressure balance, mud-water balance and soil pressure balance, and in construction, by means of thrust between the main jacking oil cylinder and the pipeline, the tool pipe or the heading machine is pushed from the working well to the receiving well through the soil layer all the time to be lifted, so that the installation of the pipeline can be realized without digging above the soil layer. The pipe jacking machine is commonly used for non-excavation paving of various pipelines such as urban underground water supply and drainage pipelines, natural gas petroleum pipelines, communication cables and the like, can traverse roads, railways, bridges, mountains, rivers, straits and any building on the ground, cannot cause environmental pollution and road blockage, and has remarkable economic and social benefits.
The traditional pipe pushing bench adopts a manual method to discharge soil. The labor intensity is high, the speed is low, and the construction progress is greatly slowed down.
Disclosure of Invention
In view of the above, the invention provides the conical spiral power numerical control push bench which has the advantages of simple and compact structure and high soil discharging efficiency.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a toper spiral power numerical control push bench, includes: the device comprises an annular bin, a middle section shell, a shaft head, a main shaft, a motor, a cutting device and a conveying device; the annular bin is fixedly connected with the shaft head, the shaft head is connected with one end of the main shaft, the shaft head rotates along with the rotation of the main shaft, the other end of the main shaft is inserted into the middle section shell and is connected with the output end of the motor, the motor is arranged in the middle section shell, the outer side of the annular bin is fixedly connected with the cutting device, and a plurality of conveying baffles are obliquely arranged in the circumferential direction of the annular bin and used for conveying soil at the bottom of the annular bin to the top of the annular bin and falling; the annular bin is characterized in that the conveying device is arranged right below the falling soil at the top of the annular bin and used for conveying out the soil.
Further, the cutting device is arranged on the annular bin in a conical shape.
Further, the cutting device comprises a plurality of connecting rods, cutting edges and triangular jacking blocks, the annular bin is fixedly connected with the shaft heads through the connecting rods, the plurality of cutting edges are uniformly arranged on one side of each connecting rod, corresponding to each connecting rod, and the triangular jacking blocks are arranged on the tops of the shaft heads.
Further, the annular bin is provided with a soil inlet below the cutting edge.
Further, the device also comprises a deviation rectifying device and a rear section shell, wherein the middle section shell is connected with the rear section shell through a plurality of deviation rectifying devices.
Further, the deviation correcting device comprises a hydraulic rod and fixing heads, wherein a plurality of fixing heads are correspondingly arranged on the inner wall of the tail end of the middle section shell and the inner wall of the head end of the rear section shell, and the hydraulic rod is hinged between the corresponding two fixing heads.
Further, a fixing ring is arranged on the inner wall of the tail end of the rear section shell.
Further, the conveying device adopts a conveyor belt.
Further, anti-falling baffles are arranged around the conveyor belt and used for preventing soil from falling off the conveyor belt.
Further, the motor comprises a motor base, wherein the motor base is fixed on the inner wall of the middle section shell, and the motor is fixedly installed on the motor base.
The invention has the beneficial effects that:
the device has a simple and compact structure, soil enters the annular bin from the soil inlet and a gap between the shaft head and the annular bin, the annular bin rotates along with the main shaft to convey the soil at the bottom of the annular bin to the top of the annular bin, and the soil falls on the conveyor belt under the gravity, so that the conveyor belt conveys the soil out, and the soil conveying efficiency is high; the spindle head is connected with the spindle through bolts, so that the spindle head is convenient to mount and dismount, and is convenient for later maintenance and repair; the deviation correcting device is arranged, so that the direction of the push bench can be corrected by the deviation correcting device when the push bench deviates from the trend; the fixing ring is arranged to be convenient for docking with a rear relay device or a hydraulic pipe jacking device; the arrangement of the anti-falling baffle plate ensures that soil on the conveyor belt is not easy to fall off from the conveyor belt.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is an external structural view of the annular cartridge.
Fig. 3 is an internal structural view of the annular bin.
Wherein, in the figure:
1-an annular bin; 2-a middle section shell; 3-shaft heads; 4-a main shaft; 5-a motor; 6-a motor base; 7-a conveyor belt; 8-a conveying baffle; 9-connecting rods; 10-cutting edge; 11-a triangular jack block; 12-a soil inlet; 13-a hydraulic rod; 14-fixing the head; 15-a fixing ring; 16-bearings; 17-anti-drop baffle.
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.
Referring to fig. 1-3, the present invention provides a conical spiral power numerical control push bench, comprising: the device comprises an annular bin 1, a middle section shell 2, a shaft head 3, a main shaft 4, a motor 5, a cutting device and a conveying device;
the annular bin 1 is fixedly connected with the shaft head 3, the shaft head 3 is fixedly connected with one end of the main shaft 4 through bolts, and the annular bin is convenient to install and detach and convenient to maintain and repair in the later period. The spindle head 3 rotates along with the rotation of the spindle 4, the other end of the spindle 4 is inserted into the middle section shell 2 and is connected with the output end of the motor 5, the motor 5 is arranged in the middle section shell 2, the outer side of the annular bin 1 is fixedly connected with the cutting device, and a plurality of conveying baffles 8 are obliquely arranged in the annular bin 1 in the circumferential direction and used for conveying soil at the bottom of the annular bin 1 to the top of the annular bin 1 and falling; the conveying device is arranged right below the falling soil at the top of the annular bin 1 and used for conveying out the soil. The cutting device is arranged on the annular bin 1 in a conical shape. The cutting device comprises three connecting rods 9, cutting edges 10 and triangular jacking blocks 11, the annular bin 1 is fixedly connected with the shaft heads 3 through the connecting rods 9, a plurality of cutting edges 10 are uniformly arranged on one corresponding side of each connecting rod 9, and the triangular jacking blocks 11 are arranged on the tops of the shaft heads 3. The annular bin 1 is provided with a soil inlet 12 at the position below the cutting edge 10, the cutting edge 10 and the triangular jack block 11 are matched with each other to cut soil, and the cut soil enters the annular bin 1 through the soil inlet 12 and a gap between the shaft head 3 and the annular bin 1. The push bench further comprises a deviation correcting device and a rear section shell, wherein the middle section shell 2 is connected with the rear section shell through a plurality of deviation correcting devices, and the deviation correcting device is arranged to enable the push bench to correct the direction through the deviation correcting devices when deviating from the trend. The deviation correcting device comprises a hydraulic rod 13 and fixing heads 14, a plurality of fixing heads 14 are correspondingly arranged on the inner wall of the tail end of the middle section shell 2 and the inner wall of the head end of the rear section shell, the hydraulic rod 13 is hinged between the corresponding two fixing heads 14, and the correction of the advancing direction of the push bench can be realized by adjusting the length of the hydraulic rod 13. The inner wall of the tail end of the rear section shell is provided with a fixing ring 15 which is convenient to be in butt joint with a rear relay device or a hydraulic pipe jacking device. The conveyor means employs a conveyor belt 7. And anti-falling baffles 17 are arranged around the conveyor belt 7 and used for preventing soil from falling off the conveyor belt 7. The motor base 6 is fixed on the inner wall of the middle section shell 2, and the motor 5 is fixedly installed on the motor base 6. The motor 5, the deviation correcting device and the conveyor belt 7 are respectively and electrically connected with a computer and are used for respectively controlling the rotating speed of the main shaft 4, the advancing direction of the pipe jacking machine and the soil discharging speed.
When the device is used, the motor 5 drives the main shaft 4 to rotate, the spindle nose 3 fixedly connected with the output end of the main shaft 4 rotates together, the cutting device is driven to perform cutting operation, cut soil enters the annular bin 1 through the soil inlet 12 and a gap between the spindle nose 3 and the annular bin 1, the conveying baffle 8 in the annular bin 1 conveys the soil positioned at the bottom of the annular bin 1 to the top of the annular bin 1 and falls onto the conveying device, and the conveying device conveys the soil.
When the traveling direction of the push bench deviates to one side, the hydraulic rod 13 on that side may be extended.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments described above will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a toper spiral power numerical control push bench which characterized in that includes: the device comprises an annular bin (1), a middle section shell (2), a shaft head (3), a main shaft (4), a motor (5), a cutting device and a conveying device;
the annular bin (1) is fixedly connected with the shaft head (3), the shaft head (3) is connected with one end of the main shaft (4), the shaft head (3) rotates along with the rotation of the main shaft (4), the other end of the main shaft (4) is inserted into the middle-section shell (2) and is connected with the output end of the motor (5), the motor (5) is arranged in the middle-section shell (2), the cutting device is fixedly connected to the outer side of the annular bin (1), and a plurality of conveying baffles (8) are obliquely arranged in the inner circumference of the annular bin (1) and used for conveying soil positioned at the bottom of the annular bin (1) to the top of the annular bin (1) and fall; the conveying device is arranged right below the falling soil at the top of the annular bin (1) and used for conveying out the soil.
2. The conical spiral power numerical control push bench according to claim 1, characterized in that the cutting device is arranged on the annular bin (1) in a conical shape.
3. The conical spiral power numerical control push bench according to claim 2, characterized in that the cutting device comprises a plurality of connecting rods (9), cutting edges (10) and triangular jacking blocks (11), the annular bin (1) is fixedly connected with the shaft heads (3) through the connecting rods (9), a plurality of cutting edges (10) are uniformly arranged on one corresponding side of each connecting rod (9), and the triangular jacking blocks (11) are arranged on the tops of the shaft heads (3).
4. A conical spiral power numerical control push bench according to claim 3, characterized in that the annular bin (1) is provided with a soil inlet (12) below the cutting edge (10).
5. The conical spiral power numerical control push bench according to claim 1, further comprising a deviation rectifying device and a rear section shell, wherein the middle section shell (2) and the rear section shell are connected through a plurality of deviation rectifying devices.
6. The conical spiral power numerical control push bench according to claim 5, wherein the deviation correcting device comprises a hydraulic rod (13) and fixing heads (14), a plurality of fixing heads (14) are correspondingly arranged on the inner wall of the tail end of the middle section shell (2) and the inner wall of the head end of the rear section shell, and the hydraulic rod (13) is hinged between the two corresponding fixing heads (14).
7. The conical spiral power numerical control push bench according to claim 5, wherein a fixing ring (15) is arranged on the inner wall of the tail end of the rear section shell.
8. The conical spiral power numerical control push bench according to claim 1, characterized in that the conveying device adopts a conveyor belt (7).
9. The conical spiral power numerical control push bench according to claim 8, wherein anti-drop baffles (17) are arranged around the conveyor belt (7) for preventing soil from dropping from the conveyor belt (7).
10. The conical spiral power numerical control push bench according to claim 1, further comprising a motor base (6), wherein the motor base (6) is fixed on the inner wall of the middle section shell (2), and the motor (5) is fixedly mounted on the motor base (6).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310283580.9A CN116291536B (en) | 2023-03-22 | 2023-03-22 | Conical spiral power numerical control push bench |
| ZA2023/10706A ZA202310706B (en) | 2023-03-22 | 2023-11-20 | Tapered spiral type pipe jacking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310283580.9A CN116291536B (en) | 2023-03-22 | 2023-03-22 | Conical spiral power numerical control push bench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116291536A CN116291536A (en) | 2023-06-23 |
| CN116291536B true CN116291536B (en) | 2023-09-19 |
Family
ID=86786782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310283580.9A Active CN116291536B (en) | 2023-03-22 | 2023-03-22 | Conical spiral power numerical control push bench |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116291536B (en) |
| ZA (1) | ZA202310706B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824988A (en) * | 2010-04-13 | 2010-09-08 | 唐兆连 | Shield machine |
| JP2010222882A (en) * | 2009-03-24 | 2010-10-07 | Okumura Corp | Excavating cutting edge member of box-shaped roof pipe |
| CN202671082U (en) * | 2012-06-28 | 2013-01-16 | 江苏新迈机械有限公司 | Structure for matching winch main shaft and transmission shaft |
| CN103321646A (en) * | 2013-07-01 | 2013-09-25 | 上海隧道工程股份有限公司 | Ground pass shield tunneling machine |
| CN204164493U (en) * | 2014-08-26 | 2015-02-18 | 中国化学工程第六建设有限公司 | A kind of sniffer for jacking construction |
| CN107387107A (en) * | 2017-06-16 | 2017-11-24 | 成都金玉雄辉建筑工程有限公司 | Development machine for pipe-jacking project |
| CN109339813A (en) * | 2018-11-27 | 2019-02-15 | 中国水利水电第四工程局有限公司 | A kind of pipe jacking tunnelling machine |
| CN113356865A (en) * | 2021-07-21 | 2021-09-07 | 东莞粤惠建筑科技有限公司 | Driving device for pipe jacking construction |
| CN217894104U (en) * | 2022-06-15 | 2022-11-25 | 安徽泰沃建筑工程有限公司 | Anti-falling soil conveying device |
-
2023
- 2023-03-22 CN CN202310283580.9A patent/CN116291536B/en active Active
- 2023-11-20 ZA ZA2023/10706A patent/ZA202310706B/en unknown
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010222882A (en) * | 2009-03-24 | 2010-10-07 | Okumura Corp | Excavating cutting edge member of box-shaped roof pipe |
| CN101824988A (en) * | 2010-04-13 | 2010-09-08 | 唐兆连 | Shield machine |
| CN202671082U (en) * | 2012-06-28 | 2013-01-16 | 江苏新迈机械有限公司 | Structure for matching winch main shaft and transmission shaft |
| CN103321646A (en) * | 2013-07-01 | 2013-09-25 | 上海隧道工程股份有限公司 | Ground pass shield tunneling machine |
| CN204164493U (en) * | 2014-08-26 | 2015-02-18 | 中国化学工程第六建设有限公司 | A kind of sniffer for jacking construction |
| CN107387107A (en) * | 2017-06-16 | 2017-11-24 | 成都金玉雄辉建筑工程有限公司 | Development machine for pipe-jacking project |
| CN109339813A (en) * | 2018-11-27 | 2019-02-15 | 中国水利水电第四工程局有限公司 | A kind of pipe jacking tunnelling machine |
| CN113356865A (en) * | 2021-07-21 | 2021-09-07 | 东莞粤惠建筑科技有限公司 | Driving device for pipe jacking construction |
| CN217894104U (en) * | 2022-06-15 | 2022-11-25 | 安徽泰沃建筑工程有限公司 | Anti-falling soil conveying device |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202310706B (en) | 2024-06-26 |
| CN116291536A (en) | 2023-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111335898B (en) | Trenchless pipeline updating construction system and construction method | |
| CN108729922B (en) | Push bench and retractable push bench construction method | |
| CN108104836B (en) | Upper counter-force supporting system for shield semi-ring initiation and shield semi-ring initiation construction method | |
| CN109630144B (en) | Method for replacing two shield tail brush rings of shield tunneling machine for water-rich stratum tunnel construction | |
| CN206646386U (en) | A kind of pitch-rood | |
| CN113153156B (en) | Hydraulic combined mechanical hole repairing device and method | |
| CN107143027A (en) | A kind of multifunctional pipe dredging vehicle | |
| CN116291536B (en) | Conical spiral power numerical control push bench | |
| CN108894792B (en) | Roller bit type push bench | |
| CN2632314Y (en) | Novel trapezoidal slotted screen pipe | |
| CN112228267A (en) | Device and method for recycling sewage hydraulic energy and oxygenating in sewage plant | |
| CN116480213A (en) | Protection guardrail embedded pile pit and U-shaped guardrail | |
| CN206815509U (en) | A kind of multifunctional pipe dredging vehicle | |
| CN106247010A (en) | A kind of no-dig technique can cross curved pipe update method | |
| CN206036389U (en) | Easily adjust non - excavation pipe rehabilitation equipment in formed tube footpath | |
| CN206875038U (en) | A kind of automatically walk pipeline rehabilitation device | |
| CN107270028A (en) | A kind of automatically walk pipeline rehabilitation device and pipe repairing method | |
| CN220978313U (en) | Pipeline cleaning device for municipal water supply and drainage | |
| CN218991595U (en) | Pipeline shield organism with plain end face blade disc | |
| CN209178952U (en) | A kind of block-resistant type technical water supply water intaking mouth structure suitable for slding form operation | |
| CN114251097A (en) | Pipeline conveying device for vertical shaft heading machine | |
| CN213596768U (en) | Municipal works restores asphalt ways portable equipment | |
| CN214784179U (en) | Utility tunnel with air supply system | |
| CN204226842U (en) | A kind of push-bench revolves and digs mud discharging device | |
| CN204942904U (en) | A kind of special-shaped pipeline non-excavation rehabilitation trailing type Stetch Wrapping Machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |