[go: up one dir, main page]

CN112227228A - Modularized large-span intelligent 2000T bridge girder erection machine - Google Patents

Modularized large-span intelligent 2000T bridge girder erection machine Download PDF

Info

Publication number
CN112227228A
CN112227228A CN202011151376.4A CN202011151376A CN112227228A CN 112227228 A CN112227228 A CN 112227228A CN 202011151376 A CN202011151376 A CN 202011151376A CN 112227228 A CN112227228 A CN 112227228A
Authority
CN
China
Prior art keywords
bridge girder
erection machine
girder erection
rope
hoisting
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.)
Pending
Application number
CN202011151376.4A
Other languages
Chinese (zh)
Inventor
李兴才
陈彦明
姜晏斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Great Hosisting Machinery Co ltd
Original Assignee
Jiangsu Great Hosisting Machinery Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Great Hosisting Machinery Co ltd filed Critical Jiangsu Great Hosisting Machinery Co ltd
Priority to CN202011151376.4A priority Critical patent/CN112227228A/en
Publication of CN112227228A publication Critical patent/CN112227228A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • E01D21/10Cantilevered erection

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses a modularized large-span intelligent 2000T bridge girder erection machine, which comprises a supporting assembly and a lifting assembly, wherein a motor drives a driving shaft to rotate so as to penetrate through a belt pulley to drive a bevel gear to rotate, one end of the bevel gear, which is vertical to the driving shaft, is in threaded connection with a screw rod so as to drive the screw rod to rotate, screw holes are formed in two ends of a cross beam and are in threaded connection with the screw rod so as to enable two ends of the cross beam to move up and down along the screw rod, a stabilizing rope is fixedly arranged at the upper end of the cross beam and is fixedly connected with the belt pulley, the stabilizing rope is wound on the outer surface of the belt pulley through the rotation of the belt pulley so as to be convenient for reinforcing and stabilizing the up and down movement of the cross beam, a bearing groove is formed in the upper surface of the cross beam so as to carry people and goods, the up and, the swing of the hoisting rope is convenient to reduce, and the hoisting stability is improved.

Description

Modularized large-span intelligent 2000T bridge girder erection machine
Technical Field
The invention relates to the technical field of bridge girder erection machines, in particular to a modular large-span intelligent 2000T bridge girder erection machine.
Background
The bridge girder erection machine is equipment for placing prefabricated beam pieces on a prefabricated bridge pier. A bridge girder erection machine belongs to the category of cranes, and is greatly different from a general crane in that the bridge girder erection machine mainly has the function of lifting a beam piece, then conveying the beam piece to a position and then putting the beam piece down. The required conditions are harsh, and the beam piece runs upwards or is called longitudinal movement. The bridge girder erection machine is divided into a highway bridge erection machine, a conventional railway bridge erection machine, a passenger-dedicated railway bridge erection machine and the like.
The existing bridge girder erection machine has larger volume, certain potential safety hazard for technical personnel working aloft, the stability of a hoisting structure cannot be guaranteed, and the safety performance is poorer.
Aiming at the problems, the invention provides a modular large-span intelligent 2000T bridge girder erection machine.
Disclosure of Invention
The invention aims to provide a modular large-span intelligent 2000T bridge girder erection machine which has the advantages of good bearing effect and stable structure, thereby solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a modularized large-span intelligent 2000T bridge girder erection machine comprises a supporting component and a lifting component, wherein the lifting component is movably connected with the supporting component, the supporting component comprises a bridge girder erection machine front leg, a hoisting arm, a through groove, a sliding groove and a cross beam, the bridge girder erection machine front leg is fixedly arranged at the lower end of the hoisting arm, the through groove penetrates through the hoisting arm, the sliding groove is arranged at two ends of the through groove, the cross beam is arranged at the lower end of the hoisting arm, and two ends of the cross beam are movably connected with the bridge girder erection machine front leg;
the lifting assembly comprises a control vehicle, a lifting rope and a lifting mechanism, the lower end of the control vehicle is matched with the sliding groove, the upper end of the lifting rope is connected with the control vehicle, and the lifting mechanism is fixedly installed at the lower end of the lifting rope.
Preferably, the front leg of the bridge girder erection machine comprises a stabilizing block, a support frame, a screw rod and a driving mechanism, the screw rod is movably arranged at the upper end of the stabilizing block, the support frame is fixedly arranged at the upper end of the stabilizing block and is arranged on the outer surface of the screw rod, and the driving mechanism is arranged inside the hoisting arm and is movably connected with the screw rod.
Preferably, the driving mechanism comprises a motor, a driving shaft, a belt pulley and a bevel gear, the motor is arranged in the hoisting arm, one end of the driving shaft is connected with the output end of the motor, the other end of the driving shaft penetrates through the belt pulley and is fixedly connected with one end of the bevel gear, and one end of the bevel gear, which is perpendicular to the driving shaft, is in threaded connection with the screw rod.
Preferably, the crossbeam includes screw, firm rope and bearing groove, and the screw sets up at the both ends of crossbeam, and runs through threaded connection with the lead screw, and firm rope fixed mounting is in the upper end of crossbeam, and with belt pulley fixed connection, and the bearing groove sets up the upper surface at the crossbeam.
Preferably, the control vehicle comprises a protection plate, a connecting rod and a guide wheel, the protection plate is fixedly arranged at the lower end of the control vehicle, one end of the connecting rod is fixedly connected with the protection plate, the other end of the connecting rod is movably provided with the guide wheel, and the guide wheel is movably connected with the hoisting rope.
Preferably, the hoisting mechanism comprises a bearing plate, an installation block, a stabilizing column and a bearing plate, the bearing plate is fixedly installed at the lower end of the hoisting rope, the installation block is fixedly installed at two ends of the bearing plate, the stabilizing column penetrates through the installation block and is fixedly connected with the bearing plate, and the bearing plate is fixedly installed at the lower end of the bearing plate.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a modularized large-span intelligent 2000T bridge girder erection machine, wherein a cross beam is arranged at the lower end of a hoisting arm, and two ends of the cross beam are movably connected with front legs of the bridge girder erection machine, so that the bridge girder erection machine can be reinforced conveniently.
2. According to the modularized large-span intelligent 2000T bridge girder erection machine, one end of the connecting rod is fixedly connected with the protection plate, the guide wheel is movably mounted at the other end of the connecting rod, the guide wheel is movably connected with the hoisting rope, when the hoisting rope drives the hoisting mechanism to lift, the hoisting rope slides along the guide wheel, the shaking of the hoisting rope is reduced conveniently, and the hoisting stability is improved.
3. According to the modularized large-span intelligent 2000T bridge girder erection machine provided by the invention, the bearing plate is fixedly arranged at the lower end of the hoisting rope, the mounting blocks are fixedly arranged at two ends of the bearing plate, and the stabilizing columns penetrate through the mounting blocks and are fixedly connected with the bearing plate, so that the bearing capacity of the bearing plate is improved, the bearing plate is reinforced, and the lifting capacity of the bridge girder erection machine is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
figure 2 is a partial cross-sectional view of a lifting arm of the present invention;
FIG. 3 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic view of a beam structure according to the present invention;
FIG. 5 is a schematic view of the control vehicle of the present invention;
fig. 6 is a schematic structural diagram of the hoisting mechanism of the present invention.
In the figure: 1. a support assembly; 11. front legs of a bridge girder erection machine; 111. a stabilizing block; 112. a support frame; 113. a screw rod; 114. a drive mechanism; 1141. a motor; 1142. a drive shaft; 1143. a belt pulley; 1144. a bevel gear; 12. hoisting the arm; 13. a through groove; 14. a chute; 15. a cross beam; 151. a screw hole; 152. stabilizing the rope; 153. a bearing groove; 2. a lifting assembly; 21. controlling the vehicle; 211. a protection plate; 212. a connecting rod; 213. a guide wheel; 22. hoisting a rope; 23. a hoisting mechanism; 231. a bearing plate; 232. mounting blocks; 233. a stabilizing column; 234. a bearing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, a modularized large-span intelligent 2000T bridge girder erection machine comprises a support component 1 and a lifting component 2, wherein the lifting component 2 is movably connected with the support component 1, the support component 1 comprises a bridge girder erection machine front leg 11, a lifting arm 12, a through groove 13, a sliding groove 14 and a cross beam 15, the bridge girder erection machine front leg 11 is fixedly arranged at the lower end of the lifting arm 12, the through groove 13 penetrates through the lifting arm 12, the sliding groove 14 is arranged at two ends of the through groove 13, the cross beam 15 is arranged at the lower end of the lifting arm 12, and two ends of the cross beam are movably connected with the bridge girder erection machine front leg 11, so that the bridge girder erection machine is reinforced; the lifting assembly 2 comprises a control vehicle 21, a lifting rope 22 and a lifting mechanism 23, the lower end of the control vehicle 21 is matched with the chute 14, the upper end of the lifting rope 22 is connected with the control vehicle 21, the lifting mechanism 23 is fixedly installed at the lower end of the lifting rope 22, the front leg 11 of the bridge girder erection machine comprises a stabilizing block 111, a support frame 112, a screw rod 113 and a driving mechanism 114, the screw rod 113 is movably installed at the upper end of the stabilizing block 111, the support frame 112 is fixedly installed at the upper end of the stabilizing block 111 and is arranged on the outer surface of the screw rod 113, and the driving mechanism 114 is arranged inside the lifting arm 12 and is movably connected with the screw rod 113.
Referring to fig. 3 and 4, the driving mechanism 114 includes a motor 1141, a driving shaft 1142, a belt pulley 1143 and a bevel gear 1144, the motor 1141 is disposed inside the lifting arm 12, one end of the driving shaft 1142 is connected to an output end of the motor 1141, the other end thereof penetrates through and is fixedly connected to one end of the belt pulley 1143 and one end of the bevel gear 1144, the bevel gear 1144 is perpendicular to the driving shaft 1142 and is in threaded connection with the screw rod 113, the cross beam 15 includes a screw hole 151, a stabilizing rope 152 and a bearing groove 153, the bearing groove 153 is disposed on an upper surface of the cross beam 15, the motor 1141 drives the driving shaft 1142 to rotate, so that the driving shaft 1142 penetrates through the belt pulley 1143 to drive the bevel gear 1144 to rotate, one end of the bevel gear 1144 perpendicular to the driving shaft 1142 and is in threaded connection with the screw rod 113 to drive the screw rod 113 to rotate, the screw hole 151 is disposed at two ends of the cross beam 15 and is in, and with belt pulley 1143 fixed connection, firm rope 152 twines the surface at belt pulley 1143 through the rotation of belt pulley 1143, is convenient for play the stable effect of reinforcement to the up-and-down motion of crossbeam 15, and bearing groove 153 sets up the upper surface at crossbeam 15, and the manned thing of carrying can be convenient from top to bottom.
Referring to fig. 5, the control cart 21 includes a protection plate 211, a connection rod 212 and a guide wheel 213, the protection plate 211 is fixedly installed at the lower end of the control cart 21, one end of the connection rod 212 is fixedly connected to the protection plate 211, the other end is movably installed with the guide wheel 213, the guide wheel 213 is movably connected to the hoisting rope 22, when the hoisting rope 22 drives the hoisting mechanism 23 to ascend and descend, the hoisting rope 22 slides along the guide wheel 213, so that the shaking of the hoisting rope 22 is reduced, and the hoisting stability is improved.
Referring to fig. 6, the lifting mechanism 23 includes a receiving plate 231, an installation block 232, a stabilizing column 233 and a bearing plate 234, the receiving plate 231 is fixedly installed at the lower end of the lifting rope 22, the installation block 232 is fixedly installed at both ends of the receiving plate 231, the stabilizing column 233 penetrates through the installation block 232 and is fixedly connected with the bearing plate 234, and the bearing plate 234 is fixedly installed at the lower end of the receiving plate 231, so that the bearing capacity of the bearing plate 234 is improved, the bearing plate 234 is reinforced, and the lifting capacity of the bridge girder erection machine is improved.
In summary, the following steps: the invention provides a modularized large-span intelligent 2000T bridge girder erection machine, wherein a crossbeam 15 is arranged at the lower end of a hoisting arm 12, and two ends of the crossbeam are movably connected with a front leg 11 of the bridge girder erection machine, so that the bridge girder erection machine is convenient to reinforce, a motor 1141 drives a driving shaft 1142 to rotate, so that the driving shaft 1142 penetrates through a belt pulley 1143 to drive a bevel gear 1144 to rotate, one end of the bevel gear 1144, which is vertical to the driving shaft 1142, is in threaded connection with a screw rod 113, so that the screw rod 113 can be driven to rotate, screw holes 151 are arranged at two ends of the crossbeam 15 and are in threaded connection with the screw rod 113, so that two ends of the crossbeam 15 can move up and down along the screw rod 113, a stabilizing rope 152 is fixedly arranged at the upper end of the crossbeam 15 and is fixedly connected with the belt pulley 1143, the stabilizing rope 152 is wound on the outer surface of the belt pulley 1143 through the rotation of the belt pulley 1143, so, can manned year thing, convenient from top to bottom, the one end and the guard plate 211 fixed connection of connecting rod 212, other end movable mounting has leading wheel 213, leading wheel 213 with lift by crane rope 22 swing joint, when lifting by crane rope 22 and drive the mechanism 23 that lifts by crane and go up and down, it slides along leading wheel 213 to lift by crane rope 22, be convenient for reduce to play the rocking of lifting by crane rope 22, improve the stability of lifting by crane, accept board 231 fixed mounting at the lower extreme that lifts by crane rope 22, the installation piece 232 fixed mounting is at the both ends of accepting board 231, firm post 233 runs through installation piece 232 and bearing plate 234 fixed connection, be convenient for improve the bearing capacity of bearing plate 234, be convenient for play reinforced effect to bearing plate 234, improve the lifting capacity of bridging machine.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an intelligent 2000T bridge girder erection machine of modularization large-span, includes supporting component (1) and lifting unit (2), lifting unit (2) and supporting component (1) swing joint, its characterized in that: the supporting assembly (1) comprises bridge girder erection machine front legs (11), hoisting arms (12), through grooves (13), sliding grooves (14) and cross beams (15), the bridge girder erection machine front legs (11) are fixedly mounted at the lower ends of the hoisting arms (12), the through grooves (13) penetrate through the hoisting arms (12), the sliding grooves (14) are formed in two ends of the through grooves (13), the cross beams (15) are arranged at the lower ends of the hoisting arms (12), and the two ends of the cross beams are movably connected with the bridge girder erection machine front legs (11);
the lifting assembly (2) comprises a control vehicle (21), a lifting rope (22) and a lifting mechanism (23), the lower end of the control vehicle (21) is matched with the sliding chute (14), the upper end of the lifting rope (22) is connected with the control vehicle (21), and the lifting mechanism (23) is fixedly installed at the lower end of the lifting rope (22).
2. The modular large-span intelligent 2000T bridge girder erection machine according to claim 1, wherein: bridge crane foreleg (11) are including firm piece (111), support frame (112), lead screw (113) and actuating mechanism (114), and lead screw (113) movable mounting is in the upper end of firm piece (111), and support frame (112) fixed mounting is in the upper end of firm piece (111), and sets up the surface at lead screw (113), and actuating mechanism (114) set up in the inside of hoist and mount arm (12), and with lead screw (113) swing joint.
3. The modular large-span intelligent 2000T bridge girder erection machine according to claim 2, wherein: the driving mechanism (114) comprises a motor (1141), a driving shaft (1142), a belt pulley (1143) and a bevel gear (1144), the motor (1141) is arranged in the hoisting arm (12), one end of the driving shaft (1142) is connected with the output end of the motor (1141), the other end of the driving shaft runs through the belt pulley (1143) and the bevel gear (1144) and is fixedly connected with one end of the bevel gear (1144), and the bevel gear (1144) is perpendicular to the driving shaft (1142) and is in threaded connection with the screw rod (113).
4. The modular large-span intelligent 2000T bridge girder erection machine according to claim 1, wherein: crossbeam (15) include screw (151), stabilize rope (152) and bearing groove (153), and screw (151) set up the both ends at crossbeam (15), and run through threaded connection with lead screw (113), and stabilize rope (152) fixed mounting in the upper end of crossbeam (15), and with belt pulley (1143) fixed connection, bearing groove (153) set up the upper surface at crossbeam (15).
5. The modular large-span intelligent 2000T bridge girder erection machine according to claim 1, wherein: control car (21) is including guard plate (211), connecting rod (212) and leading wheel (213), and guard plate (211) fixed mounting has leading wheel (213) at the lower extreme of control car (21), the one end and guard plate (211) fixed connection of connecting rod (212), other end movable mounting, leading wheel (213) and lift by crane rope (22) swing joint.
6. The modular large-span intelligent 2000T bridge girder erection machine according to claim 1, wherein: the hoisting mechanism (23) comprises a bearing plate (231), an installation block (232), a stable column (233) and a bearing plate (234), the bearing plate (231) is fixedly installed at the lower end of the hoisting rope (22), the installation block (232) is fixedly installed at two ends of the bearing plate (231), the stable column (233) penetrates through the installation block (232) and is fixedly connected with the bearing plate (234), and the bearing plate (234) is fixedly installed at the lower end of the bearing plate (231).
CN202011151376.4A 2020-10-25 2020-10-25 Modularized large-span intelligent 2000T bridge girder erection machine Pending CN112227228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011151376.4A CN112227228A (en) 2020-10-25 2020-10-25 Modularized large-span intelligent 2000T bridge girder erection machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011151376.4A CN112227228A (en) 2020-10-25 2020-10-25 Modularized large-span intelligent 2000T bridge girder erection machine

Publications (1)

Publication Number Publication Date
CN112227228A true CN112227228A (en) 2021-01-15

Family

ID=74109919

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011151376.4A Pending CN112227228A (en) 2020-10-25 2020-10-25 Modularized large-span intelligent 2000T bridge girder erection machine

Country Status (1)

Country Link
CN (1) CN112227228A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017065867A (en) * 2015-09-30 2017-04-06 ジャパンマリンユナイテッド株式会社 Heavy structure placement apparatus and heavy structure placement method
TWM541468U (en) * 2017-01-11 2017-05-11 China Steel Corp Crane device and crane component
CN207483212U (en) * 2017-11-16 2018-06-12 丁碧江 A kind of crane
CN108750992A (en) * 2018-07-03 2018-11-06 浙江融乐环境科技有限公司 A kind of movable type water pump Special lifting device
CN210438302U (en) * 2019-09-27 2020-05-01 王翔 Lifting equipment convenient to adjust for chemical equipment
CN210505227U (en) * 2019-09-12 2020-05-12 刘恒 Functional support is used in electromechanical installation
CN210505296U (en) * 2019-09-11 2020-05-12 刘锦园 Bridge construction machinery quick hoisting device
CN111170144A (en) * 2020-02-24 2020-05-19 合肥市春华起重机械有限公司 Anti-swing butt joint mechanism of hydraulic automatic crane and use method thereof
CN210620029U (en) * 2019-09-09 2020-05-26 山东神州机械有限公司 Bridge crane position detection device
CN210825173U (en) * 2019-11-05 2020-06-23 肖利明 Construction lifting device for road and bridge
CN211110726U (en) * 2019-10-16 2020-07-28 中交第一航务工程局有限公司 A lifting device for arch rib installation

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017065867A (en) * 2015-09-30 2017-04-06 ジャパンマリンユナイテッド株式会社 Heavy structure placement apparatus and heavy structure placement method
TWM541468U (en) * 2017-01-11 2017-05-11 China Steel Corp Crane device and crane component
CN207483212U (en) * 2017-11-16 2018-06-12 丁碧江 A kind of crane
CN108750992A (en) * 2018-07-03 2018-11-06 浙江融乐环境科技有限公司 A kind of movable type water pump Special lifting device
CN210620029U (en) * 2019-09-09 2020-05-26 山东神州机械有限公司 Bridge crane position detection device
CN210505296U (en) * 2019-09-11 2020-05-12 刘锦园 Bridge construction machinery quick hoisting device
CN210505227U (en) * 2019-09-12 2020-05-12 刘恒 Functional support is used in electromechanical installation
CN210438302U (en) * 2019-09-27 2020-05-01 王翔 Lifting equipment convenient to adjust for chemical equipment
CN211110726U (en) * 2019-10-16 2020-07-28 中交第一航务工程局有限公司 A lifting device for arch rib installation
CN210825173U (en) * 2019-11-05 2020-06-23 肖利明 Construction lifting device for road and bridge
CN111170144A (en) * 2020-02-24 2020-05-19 合肥市春华起重机械有限公司 Anti-swing butt joint mechanism of hydraulic automatic crane and use method thereof

Similar Documents

Publication Publication Date Title
CN101435268B (en) Stretching device of case beam in case
CN206427933U (en) A kind of bridge crane
CN213060115U (en) Construction platform for housing construction engineering
CN107416720A (en) A kind of high-altitude building material lifting device
CN113638312B (en) Multifunctional bridge guardrail construction trolley
CN216235918U (en) Mechanical elevator
CN208518312U (en) A kind of double lifting point elevator shaft operation platform
CN214653138U (en) Double-steel-wire-rope portal crane capable of being automatically switched
CN112227228A (en) Modularized large-span intelligent 2000T bridge girder erection machine
CN215858940U (en) Novel detachable combined type steel structure aerial work moving operation platform
CN112723103A (en) Transmission mechanism of construction elevator
CN220223313U (en) Hoisting device for locomotive maintenance
CN2519793Y (en) Four-column double-counterweight stacking lift
CN215925636U (en) Multi-functional bridge railing construction trolley
CN213011494U (en) Traction rope wheel type elevator without machine room
CN205204567U (en) Elevator without counterweight, lifting driving motor, driving unit and driving system thereof
CN113401796A (en) Walking hoisting robot for double-layer bolt ball net rack rod supplementing and hoisting method thereof
CN112095882A (en) Folding roof structure adopting overhanging structure and folding method
CN221625680U (en) Airport assembly type road surface board mounting machine
CN221543922U (en) Flexible height-adjusting main beam structure
CN205527210U (en) Car mounting bracket for elevator
CN220467254U (en) Composite transverse moving type gravity energy storage elevator
CN219670071U (en) Electric lifting platform
CN205294716U (en) No counter weight elevating gear
CN220149031U (en) Gantry crane with telescopic main beam

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210115