CN115676583B - Precast pile intelligent lifting appliance - Google Patents
Precast pile intelligent lifting appliance Download PDFInfo
- Publication number
- CN115676583B CN115676583B CN202211388908.5A CN202211388908A CN115676583B CN 115676583 B CN115676583 B CN 115676583B CN 202211388908 A CN202211388908 A CN 202211388908A CN 115676583 B CN115676583 B CN 115676583B
- Authority
- CN
- China
- Prior art keywords
- turntable
- follow
- block
- clamping ring
- inner diameter
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 22
- 239000007788 liquid Substances 0.000 description 12
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to the technical field of mechanical hoisting equipment, in particular to an intelligent hoisting tool for precast piles, which comprises a clamping ring, wherein the clamping ring is fixedly connected with hoisting rings which are equidistantly distributed along the circumferential direction of the clamping ring; each hanging ring is provided with a steel wire rope; the bottom of the clamping ring is rotationally connected with a turntable, the inner diameter of the turntable is consistent with that of the clamping ring, and the turntable is rotationally connected with follow-up blocks which are circumferentially equidistant along the inner diameter of the turntable; one end of the follow-up block, which is far away from the turntable, faces to the center point of the inner diameter of the clamping ring; the clamping ring is provided with an arc-shaped groove matched with the follow-up block, and the turntable rotates to enable the follow-up block to slide in the arc-shaped groove; one end of the arc-shaped groove, which is far away from the outer wall of the turntable, is an opening, and the opening faces the center position of the inner diameter of the turntable; the invention solves the technical problem that the precast pile needs to be manually righted when being lifted.
Description
Technical Field
The invention relates to the field of mechanical hoisting equipment, in particular to an intelligent hoisting tool for precast piles.
Background
In order to compensate for the construction environment of unstable or poorly supported soil layers during construction, concrete piles are often prefabricated on site or nearby, and the prefabricated piles are used for improving bearing load and accelerating construction.
When a precast pile is required to be piled, the precast pile piled on the ground is required to be hoisted, the most common hoisting mode at present is to firstly use a steel wire rope to punch knots on a pile body, then use a crane or a hook on a pile driver to hang on the beaten knots, use the hook to lift the precast pile, enable the precast pile to be converted into a vertical state from a horizontal state, enable the top of the precast pile to be in contact with a hammer seat part of a pile hammer of the pile driver along with the continuous lifting of the precast pile, enable the precast pile to be not in the same straight line with the pile hammer part of the pile driver under the restraint of the steel wire rope, enable the precast pile, the ground and the pile hammer part of the pile driver to form a right triangle, wherein the ground and the pile hammer part of the pile driver are right-angle edges, and the precast pile is a bevel edge, so that the precast pile and the pile hammer are required to be righted by manpower are positioned on the same straight line, and finally the hoisting work of the precast pile is completed; when the pile driver works, the hammer seat is always in contact with the top of the precast pile, and the hammer seat is hammered by the hammer head part of the pile hammer of the pile driver, so that the pile driving work is completed.
In the pile driving process, if the precast pile is positioned inaccurately before, namely the precast pile is in an inclined state in the pile driving process, so that the pile position deviates from a preset axis, pile repairing is needed in the subsequent construction process, even the pile body is in an inclined state, and force is concentrated to one inclined side completely in the pile driving process by the hammer head, so that pile breaking occurs.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an intelligent lifting appliance for precast piles, which solves the technical problem that the precast piles need to be manually straightened when being lifted; an intelligent lifting appliance for precast piles comprises a clamping ring, wherein lifting rings which are distributed along the circumferential direction of the clamping ring at equal intervals are fixedly connected to the clamping ring;
each hanging ring is provided with a steel wire rope;
the bottom of the clamping ring is rotationally connected with a turntable, the inner diameter of the turntable is consistent with that of the clamping ring, and the turntable is rotationally connected with follow-up blocks which are circumferentially equidistant along the inner diameter of the turntable; one end of the follow-up block, which is far away from the turntable, faces to the center point of the inner diameter of the clamping ring;
the clamping ring is provided with an arc-shaped groove matched with the follow-up block, and the turntable rotates to enable the follow-up block to slide in the arc-shaped groove; one end of the arc-shaped groove, which is far away from the outer wall of the turntable, is an opening, and the opening faces the center position of the inner diameter of the turntable.
Preferably, the bottom of the snap ring is provided with an annular groove, and teeth uniformly distributed along the annular groove are fixedly connected to the turntable; the side wall of the clamping ring is provided with a mounting groove, and the mounting groove is rotationally connected with a movable block.
Preferably, through grooves which are distributed at equal intervals along the inner diameter of the turntable are formed in the inner diameter part of the turntable, a fixed rod is fixedly connected in the through grooves, and clamping blocks are rotationally connected on the fixed rod; the bottom of the clamping block, which is close to the inner diameter of the turntable, is contacted with the follow-up block.
Preferably, the portion of the follower block contacting the clamping block is provided with a sloping surface.
Preferably, the top of the clamping ring is fixedly connected with an adjusting motor, and the output end of the adjusting motor is connected with the clamping ring; the height of the motor shell is adjusted to be higher than that of the hanging ring; and a balance detector is arranged on the steel wire rope on the lifting ring and is electrically connected with the adjusting motor.
Preferably, the balance detector comprises a box body, wherein the inside of the box body is filled with conductive liquid, and a conductive contact is fixedly connected to the inner wall of the box body.
The beneficial effects of the invention are as follows: 1. according to the intelligent lifting appliance for the precast pile, in the process that the precast pile is changed from a horizontal screen state to a vertical state, the precast pile is in an inclined state, at the moment, one side of the precast pile, which is close to the ground, is extruded to form the clamping block in the through groove, and the clamping block is contacted with the slope surface of the follow-up block, so that when the clamping block is extruded by the precast pile, the follow-up block plays a role of a cushion block, and the clamping block is prevented from being offset due to extrusion of the precast pile, so that the clamping block is offset, and the clamping ring is inclined on the precast pile, and the pile body of the precast pile is in an inclined state.
2. According to the intelligent lifting appliance for the precast pile, when the precast pile is in a vertical state, if the precast pile shakes or swings in the lifting process, at the moment, the steel wire rope is connected with the balance piece detector, in the shaking process of the precast pile, the conductive liquid in the box body is synchronously driven to shake, the conductive liquid is contacted with the conductive contact, so that the regulating motor at the shaking side of the precast pile acts, the output shaft of the regulating motor rotates, and torque is generated by the output shaft in the rotating process to pull the precast pile in the shaking opposite direction.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the main structure of the present invention; FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic structural view of a turntable;
FIG. 4 is a schematic view of the bottom of the snap ring;
FIG. 5 is a schematic diagram of the structure of the follower block;
FIG. 6 is a schematic main structure of another embodiment of the present invention;
fig. 7 is a structural diagram of the balance detector.
In the figure: 1. a clasp; 11. a hanging ring; 12. a wire rope; 13. an arc-shaped groove; 14. an annular groove; 2. a turntable; 21. a follower block; 211. a slope surface; 22. teeth; 23. a mounting groove; 24. a movable block; 3. a through groove; 31. a fixed rod; 32. clamping blocks; 4. adjusting a motor;
41. a balance detector; 42. a case; 43. a conductive liquid; 44. conductive contacts.
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.
Embodiment one: as shown in fig. 1 to 5:
an intelligent lifting appliance for precast piles comprises a clamping ring 1, wherein lifting rings 11 distributed along the circumferential direction of the clamping ring 1 at equal intervals are fixedly connected to the clamping ring 1; each hanging ring 11 is provided with a steel wire rope 12; the bottom of the clamping ring 1 is rotationally connected with a turntable 2, the inner diameter of the turntable 2 is consistent with the inner diameter of the clamping ring 1, and the turntable 2 is rotationally connected with follow-up blocks 21 which are circumferentially equidistant along the inner diameter of the turntable 2; one end of the follower block 21, which is far away from the turntable 2, faces the center point of the inner diameter of the clamping ring 1; an arc-shaped groove 13 matched with the follow-up block 21 is formed in the clamping ring 1, and the turntable 2 rotates to enable the follow-up block 21 to slide in the arc-shaped groove 13; the end of the arc-shaped groove 13 far away from the outer wall of the turntable 2 is an opening, and the opening faces to the center position of the inner diameter of the turntable 2.
An annular groove 14 is formed in the bottom of the snap ring 1, and teeth 22 uniformly distributed along the annular groove 14 are fixedly connected to the turntable 2; the side wall of the snap ring 1 is provided with a mounting groove 23, and the mounting groove 23 is rotationally connected with a movable block 24.
Other: A. the inner diameter part of the turntable 2 is provided with through grooves 3 which are distributed along the inner diameter of the turntable 2 at equal intervals, the inside of the through grooves 3 is fixedly connected with a fixed rod 31, and the fixed rod 31 is rotationally connected with a clamping block 32; the bottom of the clamping block 32, which is close to the inner diameter side of the turntable 2, is contacted with the follower block 21.
B. The portion of the follower block 21 in contact with the clamp block 32 is provided with a slope surface 211.
During operation, in the process of hoisting a precast pile by a pile driver, a steel wire rope 12 on the pile driver passes through a hammer seat part of a pile hammer, the steel wire rope 12 in the embodiment is distributed on the hammer seat in an equilateral triangle shape, one end of the steel wire rope 12 far away from the hammer seat is fixedly connected with a lifting ring 11 on a clamping ring 1, and the lifting ring 11 is distributed on the clamping ring 1 in the same equilateral triangle shape;
in the process of hoisting a precast pile, the precast pile is piled up on the ground in a horizontal state at the beginning, a clamping ring 1 is sleeved at one fifth of the precast pile, then a rotary table 2 is rotated, the rotary table 2 drives a follower block 21 to move in the process of rotating the rotary table 2, and the follower block 21 moves towards the center of the clamping ring 1 under the influence of an arc-shaped groove 13 on the clamping ring 1; since the slope surface 211 (as shown in fig. 5) is arranged on the follower block 21, the slope of one end far away from the outer wall of the turntable 2 is larger than the slope of one end of the follower block 21 close to the turntable 2; as the slope surface 211 on the follow-up block 21 contacts with one surface of the clamping block 32 close to the center of the clamping ring 1, the slope surface 211 on the follow-up block 21 extrudes the clamping block 32 along with the movement of the follow-up block 21, the clamping block 32 rotates around the fixed rod 31 as the center, one end of the clamping block 32 away from the follow-up block 21 rotates towards the center of the clamping ring 1, and the movement of the follow-up block 21 and the rotation of the clamping block 32 synchronously run; along with the movement of the follow-up block 21, the end, far away from the end connected with the turntable 2, of the follow-up block 21 and the end, far away from the follow-up block 21, of the clamping block 32 are contacted with the outer wall of the precast pile, so that the fixing work of the clamping ring 1 on the precast pile is completed; because the number of the clamping blocks 32 and the follow-up blocks 21 is multiple, the clamping blocks 32 and the follow-up blocks 21 synchronously run when the turntable 2 rotates, and then one end of the follow-up blocks 21 far away from the connection with the turntable 2 and one end of the clamping blocks 32 far away from the follow-up blocks 21 are contacted with the outer wall of the precast pile, so that the clamping ring 1 and the precast pile are concentric;
the steel wire rope 12 is wound, the steel wire rope 12 drives the precast pile to move through the clamping ring 1, the precast pile is changed from a horizontal state to a vertical state, winding is continuously carried out on the steel wire rope 12, and the precast pile is lifted, and as the steel wire rope 12 is distributed in an equilateral triangle shape at the hammer seat part of the pile driver, the top of the precast pile and the center part of the hammer seat are in a straight line in the lifting process of the precast pile, so that the precast pile can be quickly aligned with the hammer seat after rising, the hammer seat and a pre-marked piling position are in a vertical line, the precast pile can be quickly lifted, and the precast pile is vertically dropped on the pre-marked piling position, and piling of the precast pile when the pile body is in an inclined state is avoided; in the vertical state of the precast pile, the precast pile has a downward trend under the influence of self gravity, and the precast pile can be self-locked due to the inclined state of the clamp block 32 when the precast pile rotates around the fixed rod 31, so that the precast pile is prevented from falling off in the hoisting process;
in the process that the precast pile is changed from a horizontal screen state to a vertical state, the precast pile is in an inclined state, at the moment, one side of the precast pile, which is close to the ground, is extruded to form a clamping block 32 in a through groove 3, and as the clamping block 32 is in contact with a slope surface 211 of a follow-up block 21, when the clamping block 32 is extruded by the precast pile, the follow-up block 21 plays a role of a cushion block, and the clamping block 32 is prevented from being deflected due to the extrusion of the precast pile by the clamping block 32, so that a clamping ring 1 is deflected, the clamping ring 1 is inclined on the precast pile, and a pile body of the precast pile is in an inclined state;
meanwhile, the follow-up block 21 transmits the extrusion force received by the clamping block 32 to the precast pile, so that the fixing effect of the clamping ring 1 on the precast pile is improved; simultaneously, in the pivoted in-process of carousel 2, the tooth 22 on the carousel 2 is rotatory in the annular inside, and tooth 22 promotes movable block 24 motion simultaneously, after accomplishing the centering of snap ring 1 and precast pile, movable block 24 stops tooth 22, avoids at precast pile lifting by crane the in-process carousel 2 self reversal and leads to precast pile to drop from snap ring 1's problem.
Embodiment two: as shown in fig. 6 and 7:
the top of the clamping ring 1 is fixedly connected with an adjusting motor 4, and the output end of the adjusting motor 4 is connected with the clamping ring 1; regulating electricity
The height of the shell of the machine 4 is higher than that of the hanging ring 11;
the wire rope 12 on rings 11 is equipped with balanced detector 41, and balanced detector 41 and accommodate motor 4 electric connection.
The balance detector 41 includes a case 42, a conductive liquid 43 is filled in the case 42, and a conductive contact 44 is fixedly connected to an inner wall of the case 42.
When the precast pile is in a horizontal state, the balance detector 41 is in a suspended state and does not participate in the work; when the precast pile is in a vertical state, if the precast pile shakes or swings in the hoisting process, at the moment, because the steel wire rope 12 is connected with the balance piece detector, in the shaking process of the precast pile, the conductive liquid 43 in the box 42 is synchronously driven to shake, the conductive liquid 43 contacts with the conductive contact 44, so that the regulating motor 4 at the shaking side of the precast pile acts, the output shaft of the regulating motor 4 rotates, torque is generated by the output shaft in the rotating process to pull the precast pile in the opposite shaking direction, and meanwhile, the torque of the regulating motor 4 is higher than the height of the lifting ring 11, so that the steel wire rope 12 on the lifting ring 11 is wound on the shell of the regulating motor 4, and further, a lifting force is applied to the precast pile, so that the shaking condition of the precast pile in the hoisting process is counteracted; the thickener is added in the conductive liquid 43, so that the conductive liquid 43 becomes sticky, and after the conductive liquid 43 contacts with the conductive contact 44, the amplitude of the back and forth shaking of the conductive liquid 43 due to inertia is reduced, and the conductive contact 44 is prevented from being contacted by the conductive liquid 43 connected with the adjusting motor 4 on the non-shaking side of the precast pile.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (1)
1. An intelligent lifting appliance for precast piles comprises a clamping ring (1), wherein lifting rings (11) distributed along the circumferential direction of the clamping ring (1) at equal intervals are fixedly connected to the clamping ring (1); each hanging ring (11) is provided with a steel wire rope (12);
the method is characterized in that:
the bottom of the clamping ring (1) is rotationally connected with a turntable (2), the inner diameter of the turntable (2) is consistent with the inner diameter of the clamping ring (1), and the turntable (2) is rotationally connected with follow-up blocks (21) which are circumferentially equidistantly distributed along the inner diameter of the turntable (2); one end of the follow-up block (21) far away from the turntable (2) faces to the center point of the inner diameter of the clamping ring (1);
an arc-shaped groove (13) matched with the follow-up block (21) is formed in the clamping ring (1), and the turntable (2) rotates to enable the follow-up block (21) to slide in the arc-shaped groove (13); one end of the arc-shaped groove (13) far away from the outer wall of the turntable (2) is an opening, the opening faces the center position of the inner diameter of the turntable (2), through grooves (3) distributed at equal intervals along the inner diameter of the turntable (2) are formed in the inner diameter part of the turntable (2), a fixing rod (31) is fixedly connected in the through grooves (3), and clamping blocks (32) are rotationally connected on the fixing rod (31); the bottom of the clamping block (32) close to the inner diameter surface of the turntable (2) is contacted with the follow-up block (21), and a slope surface (211) is arranged at the contact part of the follow-up block (21) and the clamping block (32); when the turntable rotates, the clamping blocks and the follow-up blocks synchronously run, so that one end of the follow-up blocks, which is far away from the end connected with the turntable, and one end of the clamping blocks, which is far away from the follow-up blocks, are contacted with the outer wall of the precast pile; in the process that the precast pile is changed from a horizontal state to a vertical state, the precast pile is in an inclined state, and at the moment, one side of the precast pile, which is close to the ground, is extruded to form a clamping block in the through groove; an annular groove (14) is formed in the bottom of the snap ring (1), and teeth (22) uniformly distributed along the annular groove (14) are fixedly connected to the turntable (2); the side wall of the snap ring (1) is provided with a mounting groove (23), and the mounting groove (23) is rotationally connected with a movable block (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211388908.5A CN115676583B (en) | 2022-11-08 | 2022-11-08 | Precast pile intelligent lifting appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211388908.5A CN115676583B (en) | 2022-11-08 | 2022-11-08 | Precast pile intelligent lifting appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115676583A CN115676583A (en) | 2023-02-03 |
| CN115676583B true CN115676583B (en) | 2024-01-26 |
Family
ID=85050353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211388908.5A Active CN115676583B (en) | 2022-11-08 | 2022-11-08 | Precast pile intelligent lifting appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115676583B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0920492A (en) * | 1995-07-04 | 1997-01-21 | Iwatani Internatl Corp | Hold suspending fixture for cylinder |
| CN2692802Y (en) * | 2004-01-15 | 2005-04-13 | 王振忠 | Electrocontrolled inclination preventing device |
| CN107555307A (en) * | 2017-10-20 | 2018-01-09 | 河南省大方重型机器有限公司 | Pulley-type spherical component special hanger |
| CN109209262A (en) * | 2018-10-24 | 2019-01-15 | 兰州兰石石油装备工程股份有限公司 | For clamping the hydraulic rotating chuck of marine drilling platform marine riser |
| CN110963399A (en) * | 2019-11-22 | 2020-04-07 | 国家电网有限公司 | Cable hoist for cable vertical laying |
| CN113216188A (en) * | 2021-05-06 | 2021-08-06 | 岳阳市交通公路工程建设总公司 | Super-poured concrete processing device and underwater concrete cast-in-place pile construction process |
-
2022
- 2022-11-08 CN CN202211388908.5A patent/CN115676583B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0920492A (en) * | 1995-07-04 | 1997-01-21 | Iwatani Internatl Corp | Hold suspending fixture for cylinder |
| CN2692802Y (en) * | 2004-01-15 | 2005-04-13 | 王振忠 | Electrocontrolled inclination preventing device |
| CN107555307A (en) * | 2017-10-20 | 2018-01-09 | 河南省大方重型机器有限公司 | Pulley-type spherical component special hanger |
| CN109209262A (en) * | 2018-10-24 | 2019-01-15 | 兰州兰石石油装备工程股份有限公司 | For clamping the hydraulic rotating chuck of marine drilling platform marine riser |
| CN110963399A (en) * | 2019-11-22 | 2020-04-07 | 国家电网有限公司 | Cable hoist for cable vertical laying |
| CN113216188A (en) * | 2021-05-06 | 2021-08-06 | 岳阳市交通公路工程建设总公司 | Super-poured concrete processing device and underwater concrete cast-in-place pile construction process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115676583A (en) | 2023-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108726359B (en) | Crane turnover process | |
| CN104310206B (en) | Tube coupling handling turning device and method thereof | |
| CN115676583B (en) | Precast pile intelligent lifting appliance | |
| CN218058216U (en) | Handling equipment for construction | |
| CN113772532B (en) | Prefabricated component hoisting device for assembly type building | |
| CN215946553U (en) | Hoisting device for electrical cabinet | |
| CN211366730U (en) | Large article hanging tool | |
| CN211169523U (en) | Special self-locking device for stacking clamp of autoclaved aerated concrete product | |
| CN210505305U (en) | Pipeline hoisting device for assembled machine room | |
| CN210029833U (en) | Lifting equipment for building construction | |
| JP2019190172A (en) | Hanging metal device for existing concrete pile with end plate, and method for installing existing concrete pile with end plate | |
| CN207845010U (en) | A kind of small-size carrying machine of power distribution cabinet | |
| JP3712801B2 (en) | Mobile crane for pile driving | |
| CN220351554U (en) | Automatic rotary crane with safe lifting | |
| CN212799292U (en) | Four-lifting-point C-shaped hook fork lifting appliance | |
| JP2018031177A (en) | Member raise-up device and lifting method | |
| CN220283512U (en) | Building site concrete pile device | |
| CN110857208A (en) | Section steel overturning method and structure thereof | |
| CN214087447U (en) | Tower crane counterweight balancing device | |
| CN211198361U (en) | Special stacking clamp for autoclaved aerated concrete products | |
| CN112726585B (en) | Concrete pipe pile splicing device | |
| CN214497203U (en) | Prefabricated bent cap installation hoisting device | |
| CN215558425U (en) | Stable and anti-shaking lifting device for building construction | |
| JP2955493B2 (en) | Control method of swing posture of suspended load of crane | |
| CN217252776U (en) | Pouring manipulator |
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 |