CN105200917A - Bridge detecting device and method - Google Patents

Bridge detecting device and method Download PDF

Info

Publication number
CN105200917A
CN105200917A CN201510572612.2A CN201510572612A CN105200917A CN 105200917 A CN105200917 A CN 105200917A CN 201510572612 A CN201510572612 A CN 201510572612A CN 105200917 A CN105200917 A CN 105200917A
Authority
CN
China
Prior art keywords
bridge
motor
fluctuating orbit
track
wire rope
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.)
Granted
Application number
CN201510572612.2A
Other languages
Chinese (zh)
Other versions
CN105200917B (en
Inventor
侯宏伟
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.)
Zhejiang Academy Of Building Research & Design Redya Ltd
Original Assignee
Zhejiang Academy Of Building Research & Design Redya 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 Zhejiang Academy Of Building Research & Design Redya Ltd filed Critical Zhejiang Academy Of Building Research & Design Redya Ltd
Priority to CN201510572612.2A priority Critical patent/CN105200917B/en
Publication of CN105200917A publication Critical patent/CN105200917A/en
Application granted granted Critical
Publication of CN105200917B publication Critical patent/CN105200917B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/10Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
    • E01D19/106Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges

Abstract

The invention discloses a bridge detecting device. The bridge detecting device is characterized by comprising piers, wherein vacuum suction cups are mounted on the piers, a steel wire rope is connected between the vacuum suction cups, and suction pipes are connected onto the vacuum suction cups; the bridge detecting device further comprises a transverse rail and a detecting device body; traveling devices are mounted at two ends of the transverse rail; each traveling device comprises a panel, pulley blocks driven by motors to rotate are mounted at two ends of the panel, each pulley block comprises two pulleys, and a gap allowing the steel wire rope to pass is reserved between every two pulleys. The bridge detecting device has the benefits as follows: the bridge detecting device is simple to operate, the whole detection process is conducted under a bridge, the traffic on the bridge is not affected, warning signs are not required, full-time safety supervisors are not required to be arranged for traffic guidance, labor and material resources are saved, and the device is suitable for popularization and usage.

Description

A kind of bridge detecting device and detection method thereof
Technical field
The present invention relates to a kind of bridge detecting device, be specifically related to a kind of for a kind of bridge detecting device bottom bridge bridge chair and detection method thereof, belong to Bridge Inspection field.
Background technology
Basket-hanging bridge inspection vehicle also claims foldable arm bridge inspection vehicle, its compact structure, few by bridge construction restriction, work flexibly, both also can rise detection bridge superstructure under detecting bridge, can operate by wire/wireless, flexibly and easily, sometimes can also use as high-altitude operation vehicle, price is low relative to truss-like bridge-checking vehicle.Its basic structure has fully demonstrated the feature of foldable arm truck with loading crane, high-altitude operation vehicle.
As Patent publication No CN102251473A discloses a kind of truss bridge detecting vehicle, this truss bridge detecting vehicle at least comprises vehicle body, principal arm and truss assembly, described principal arm is connected on the turntable of vehicle body, described truss assembly is connected with vehicle body by principal arm, this principal arm at least comprises the turntable be connected with vehicle body turntable, the horizontal arm support be connected with truss assembly, and described turntable is connected by hoist cylinder and two connecting rods with between horizontal arm support.Two connecting rods, turntable and horizontal arm supports form a parallel four-bar linkage jointly, the spanning height of such truss bridge detecting vehicle is not only increased, and can free adjustment within the scope of the highest spanning height, namely multiple spanning height can be reached, therefore, what this truss bridge detecting vehicle was flexible and changeable arrange spanning height drastically increases operation compliance; Meanwhile, this truss bridge detecting vehicle also has the advantage that compact conformation is simple, safety is high, car load energy consumption is low.
As Patent publication No CN202298459U discloses a kind of bridge detecting device, relate to Bridge Inspection field.A kind of bridge detecting device, it comprises support, the top of support is connected with expansion bracket, expansion bracket is socketed by several hollow sections, and expansion bracket is C font, and one end of expansion bracket is provided with eyepiece, the other end of expansion bracket is provided with detection mirror, expansion bracket inner chamber is provided with light-conductive optic fibre, and one end of light-conductive optic fibre is connected with detection mirror, and the other end of light-conductive optic fibre is connected with eyepiece.The utility model solves prior art and cannot sail into small bridge detection Bridge inspection vehicle, and need testing staff to climb to below bridge and launch bridge machinery, detection efficiency is low, the unsafe technical problem of testing staff.The utility model beneficial effect is: simple and reasonable, easy to carry.As long as testing staff is at bridge floor by eyepiece just energy detecting bridge girder construction, detection efficiency is high, testing staff's safety.
Bridge-checking vehicle is the disease maintenance and the special-purpose vehicle of preventive inspection operation that are applicable to extra-large bridge, has had working platform under bridge, just comprehensively can check each structure in bridge bottom, repair and maintenance (R and M).Because the developed area of bridge-checking vehicle working platform is comparatively large, in the process detected bridge, all can arrange warning sign, and arrange full-time security official to relieve traffic congestion, so very labor intensive material resources, affect the traffic of bridge floor simultaneously, very inconvenient like this.
Summary of the invention
Instant invention overcomes prior art Problems existing, propose a kind of bridge detecting device bottom a kind of bridge bridge chair, the whole testing process of this device is carried out under bridge, do not affect the traffic on bridge, do not need to arrange warning sign and arrange full-time security official to relieve traffic congestion, save man power and material.
Concrete technical scheme of the present invention is as follows: a kind of bridge detecting device, comprises bridge pier, and fixture is arranged on bridge pier side, and described fixture is locked on clamping bridge pier by set lever, and described fixture is provided with coil holder, and wire rope is arranged on coil holder;
Also comprise cross track and checkout gear, described cross track two ends are provided with running gear, and described running gear comprises panel, and the assembly pulley rotated by driven by motor is arranged on panel two ends, the quantity of each assembly pulley is two, leaves the gap for steel wire penetrating between two pulleys;
Described cross track comprises housing, and track one is arranged in housing, by motor three drive movement movable stand be arranged on track one;
Described movable stand is provided with lower fluctuating orbit, and upper lifting track installation is on lower fluctuating orbit, and motor two is arranged between the tooth bar one of fluctuating orbit and the tooth bar two of lower fluctuating orbit for controlling the lifting of upper fluctuating orbit; Described upper fluctuating orbit is also provided with track raised line, the groove block inserted for track raised line is also installed above lower fluctuating orbit;
Described checkout gear comprises the fixed bin being fixed on fluctuating orbit top, described fixed bin is provided with the reel cage swung by motor four control, long-armedly be arranged on reel cage, described long-armed one end is provided with and controls the long-armed motor six moved around in reel cage, and the other end is provided with video camera.
Preferentially, motor two, motor four and motor six are PLC and control motor.
Based on the Bridges Detection of above-mentioned a kind of bridge detecting device, comprise the steps:
1) on bridge pier, vacuum suction cup is installed, and by exhaust tube it is vacuumized and make it be adsorbed on bridge pier, wire rope is connected between vacuum suction cup;
2) running gear is put on a steel cord, in the gap that wire rope is between assembly pulley;
3) run the lifting controlling upper fluctuating orbit by motor two, run by motor six and control the long-armed distance moved around in reel cage for regulating video camera and bridge chair, until the clear picture that video camera is passed back;
4) start to detect, make whole device walk make a video recording to bottom bridge chair in silk enterprising every trade of restricting by the motion of driven by motor assembly pulley;
5) be connected with CCTV system by video camera, testing staff checks camera photography picture by display, checks detection to bottom bridge chair;
6) constantly step 1)-5 is repeated), until bed rearrangement bridge machinery completes.
Beneficial effect of the present invention: the present invention is simple to operate, whole testing process is carried out under bridge, do not affect the traffic on bridge, do not need all can arrange warning sign and arrange full-time security official to relieve traffic congestion, and saves man power and material, be applicable to promoting the use of.
Accompanying drawing explanation
Fig. 1 is the overall structural arrangement schematic diagram of a kind of bridge detecting device of the present invention;
Fig. 2 is the structure chart of a kind of bridge detecting device of the present invention;
Fig. 3 is a kind of lateral view of bridge detecting device;
Fig. 4 be Fig. 2 disassemble schematic diagram further;
Fig. 5 be Fig. 4 disassemble schematic diagram further;
Fig. 6 is the structural configuration schematic diagram of cross track;
Fig. 7 is that the laying structure of fixture arranges schematic diagram.
Detailed description of the invention
As shown in figures 1 to 6, a kind of bridge detecting device of the present invention, comprise bridge pier 100, fixture 501 is arranged on bridge pier 100 side, described fixture 501 is locked on clamping bridge pier 100 by set lever 504, and described fixture 501 is provided with coil holder 502, and wire rope 500 is arranged on coil holder 502, wire rope 500 is 2, and location gap is identical with gap 803 location gap of running gear 800.
Also comprise cross track 900 and checkout gear 700, described cross track 900 two ends are provided with running gear 800, described running gear 800 comprises panel 804, panel 804 is provided with opening 802, the assembly pulley 801 rotated by driven by motor is arranged on panel 804 two ends, assembly pulley 801 is also laid in opening 802 simultaneously, and the quantity of each assembly pulley 801 is two, leaves the gap 803 passed for wire rope 500 between two pulleys.
Cross track 900 comprises housing 904, and track 1 is arranged in housing 904, by motor 3 903 drive movement movable stand 604 be arranged on track 1.
Movable stand 604 is provided with lower fluctuating orbit 400, upper fluctuating orbit 600 is arranged on lower fluctuating orbit 400, and motor 2 404 is arranged between the tooth bar 1 of fluctuating orbit 600 and the tooth bar 2 402 of lower fluctuating orbit 400 for controlling the lifting of upper fluctuating orbit 600; Described upper fluctuating orbit 600 is also provided with track raised line 602, lower fluctuating orbit 400 is also provided with the groove block 403 inserted for track raised line 602 above, the quantity of groove block 403 is 2, a top being positioned at fluctuating orbit 400, another is positioned at the middle part of fluctuating orbit 400, and the effect of groove block 403 mainly limits the skew of raised line 602 position.
Checkout gear 700 comprises the fixed bin 704 being fixed on fluctuating orbit 600 top, described fixed bin 704 is provided with and controls by motor 4 701 reel cage 710 that swings, long-armed 708 are arranged on reel cage 710, described long-armed 708 one end are provided with and control long-armed 708 motors 6 703 moved around in reel cage 710, and the other end is provided with video camera 706.In addition, install the tooth bar 3 705 preventing displacement displacement on long-armed 708, the draw-in groove blocking tooth bar 3 705 is arranged in reel cage 710.
In addition, described motor 2 404, motor 4 701 and motor 6 703 are PLC and control motor.
Based on said apparatus, the invention allows for a kind of Bridges Detection, comprise the steps:
1) sectional fixture 501 on bridge pier 100, and make it be fixed on bridge pier 100 by set lever 504 locking, wire rope 500 is arranged on coil holder 502;
2) running gear 800 is placed on wire rope 500, in the gap 803 that wire rope 500 is between assembly pulley 801;
3) controlled the lifting of upper fluctuating orbit 600 by motor 2 404 operation, run by motor 6 703 and control long-armed 708 distances moved around in reel cage 710 for regulating video camera 706 and bridge chair, until the clear picture that video camera 706 is passed back;
4) start to detect, make whole device walk make a video recording to bottom bridge chair in silk 500 enterprising every trades of restricting by driven by motor assembly pulley 801 motion;
5) be connected with CCTV system by video camera 706, testing staff checks video camera 706 camera picture by display, checks detection to bottom bridge chair;
6) constantly step 1)-5 is repeated), until bed rearrangement bridge machinery completes.

Claims (3)

1. a bridge detecting device, it is characterized in that: comprise bridge pier (100), fixture (501) is arranged on bridge pier (100) side, described fixture (501) is locked in clamping bridge pier (100) by set lever (504), described fixture (501) is provided with coil holder (502), wire rope (500) is arranged on coil holder (502);
Be connected with wire rope (500) between described vacuum suction cup (200), vacuum suction cup (200) be connected with exhaust tube (300);
Also comprise cross track (900) and checkout gear (700), described cross track (900) two ends are provided with running gear (800), described running gear (800) comprises panel (804), the assembly pulley (801) rotated by driven by motor is arranged on panel (804) two ends, the quantity of each assembly pulley (801) is two, leaves the gap (803) passed for wire rope (500) between two pulleys;
Described cross track (900) comprises housing (904), and track one (901) is arranged in housing (904), by motor three (903) drive movement movable stand (604) be arranged on track one (901);
Described movable stand (604) is provided with lower fluctuating orbit (400), upper fluctuating orbit (600) is arranged on lower fluctuating orbit (400), and motor two (404) is arranged between the tooth bar one (601) of fluctuating orbit (600) and the tooth bar two (402) of lower fluctuating orbit (400) for controlling the lifting of upper fluctuating orbit (600); Described upper fluctuating orbit (600) is also provided with track raised line (602), and lower fluctuating orbit (400) is also provided with the groove block (403) inserted for track raised line (602) above;
Described checkout gear (700) comprises the fixed bin (704) being fixed on fluctuating orbit (600) top, described fixed bin (704) is provided with and controls by motor four (701) reel cage (710) that swings, long-armed (708) are arranged on reel cage (710), described long-armed (708) one end is provided with the motor six (703) controlling long-armed (708) and move around in reel cage (710), and the other end is provided with video camera (706).
2. bridge detecting device according to claim 1, is characterized in that: described motor two (404), motor four (701) and motor six (703) are PLC and control motor.
3. use a Bridges Detection for a kind of bridge detecting device as claimed in claim 1, comprise the steps:
1) sectional fixture (501) on bridge pier (100), and make it be fixed on bridge pier (100) by set lever (504) locking, wire rope (500) is arranged on coil holder (502);
2) running gear (800) is placed on wire rope (500), in the gap (803) that wire rope (500) is between assembly pulley (801);
3) lifting controlling upper fluctuating orbit (600) is run by motor two (404), the distance controlling long-armed (708) and move around in reel cage (710) for regulating video camera (706) and bridge chair is run, until the clear picture that video camera (706) is passed back by motor six (703);
4) start to detect, by driven by motor assembly pulley (801) motion, whole device is walked in silk rope (500) enterprising every trade and make a video recording to bottom bridge chair;
5) be connected with CCTV system by video camera (706), testing staff checks video camera (706) camera picture by display, checks detection to bottom bridge chair;
6) constantly step 1)-5 is repeated), until bed rearrangement bridge machinery completes.
CN201510572612.2A 2015-09-10 2015-09-10 A kind of bridge detecting device and detection method thereof Active CN105200917B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510572612.2A CN105200917B (en) 2015-09-10 2015-09-10 A kind of bridge detecting device and detection method thereof

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201510572612.2A CN105200917B (en) 2015-09-10 2015-09-10 A kind of bridge detecting device and detection method thereof
CN201610381463.6A CN106032662B (en) 2015-09-10 2015-09-10 A kind of bridge detecting device and its detection method
CN201610381464.0A CN106087729B (en) 2015-09-10 2015-09-10 A kind of bridge detecting device and its detection method

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CN201610381463.6A Division CN106032662B (en) 2015-09-10 2015-09-10 A kind of bridge detecting device and its detection method
CN201610381464.0A Division CN106087729B (en) 2015-09-10 2015-09-10 A kind of bridge detecting device and its detection method

Publications (2)

Publication Number Publication Date
CN105200917A true CN105200917A (en) 2015-12-30
CN105200917B CN105200917B (en) 2016-11-30

Family

ID=54948850

Family Applications (3)

Application Number Title Priority Date Filing Date
CN201610381464.0A Active CN106087729B (en) 2015-09-10 2015-09-10 A kind of bridge detecting device and its detection method
CN201610381463.6A Expired - Fee Related CN106032662B (en) 2015-09-10 2015-09-10 A kind of bridge detecting device and its detection method
CN201510572612.2A Active CN105200917B (en) 2015-09-10 2015-09-10 A kind of bridge detecting device and detection method thereof

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CN201610381464.0A Active CN106087729B (en) 2015-09-10 2015-09-10 A kind of bridge detecting device and its detection method
CN201610381463.6A Expired - Fee Related CN106032662B (en) 2015-09-10 2015-09-10 A kind of bridge detecting device and its detection method

Country Status (1)

Country Link
CN (3) CN106087729B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108931524A (en) * 2018-04-27 2018-12-04 上海宝钢工业技术服务有限公司 Rail mounted driving hanging beam fatigue crack detection device
CN109060282A (en) * 2018-10-23 2018-12-21 王本勋 A kind of road and bridge detection device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106964514B (en) * 2017-05-19 2018-12-11 孙健春 Bridge bottom surface painting device and its construction method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0865539B1 (en) * 1995-12-07 1999-11-03 MOOG, Alfons Bridge inspection system
CN101906752A (en) * 2009-06-03 2010-12-08 柳州欧维姆机械股份有限公司 Automatic climbing mechanism for track inhaul cable and control system thereof
CN102304897A (en) * 2011-07-28 2012-01-04 北京特希达特种设备技术有限公司 Bridge structure video detection method based on video detection system
CN202298459U (en) * 2011-10-25 2012-07-04 浙江大合建设工程检测有限公司 Bridge detecting device
CN203625772U (en) * 2013-10-12 2014-06-04 武汉二航路桥特种工程有限责任公司 Stay-cable maintenance trolley based on parallel double cables
CN204940111U (en) * 2015-09-10 2016-01-06 浙江省建筑科学设计研究院有限公司 A kind of bridge detecting device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489863B3 (en) * 1980-09-08 1983-06-17 Baudin Chateauneuf
CN2419248Y (en) * 2000-04-27 2001-02-14 刘真 Horizontally moving isolated platform for steel beam maintaining vehicle
CN2666992Y (en) * 2003-12-30 2004-12-29 交通部公路科学研究所 Light removable assembling bridge detection working frame
US7134159B2 (en) * 2004-01-13 2006-11-14 Rite-Hite Holding Corporation Stump-out apparatus for a dock leveler
CN201367556Y (en) * 2008-11-27 2009-12-23 武桥重工集团股份有限公司 Hanging arch bridge inspection vehicle climbing by steel tube track
KR100929249B1 (en) * 2009-07-17 2009-12-01 (주)디에스지 Device for inspection bridge moving type
CN201753436U (en) * 2010-07-12 2011-03-02 武桥重工集团股份有限公司 Detachable lift type bridge inspection vehicle
CN202969268U (en) * 2012-12-17 2013-06-05 王鹏 Bridge detecting device
CN103306199B (en) * 2013-06-21 2015-07-08 重庆运安机电制造有限责任公司 Mounting method of bottom width overhaul hanging basket of bridge
CN204212070U (en) * 2014-10-16 2015-03-18 武汉二航路桥特种工程有限责任公司 Can the inspection platform of way moving under uninterrupted traffic condition
CN104831623B (en) * 2015-04-15 2016-08-17 华北水利水电大学 A kind of across pier suspension bracket self-propelling device
CN104894967B (en) * 2015-06-29 2016-09-14 浙江峰邦机械科技有限公司 A kind of bridge maintenance is from jacking equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0865539B1 (en) * 1995-12-07 1999-11-03 MOOG, Alfons Bridge inspection system
CN101906752A (en) * 2009-06-03 2010-12-08 柳州欧维姆机械股份有限公司 Automatic climbing mechanism for track inhaul cable and control system thereof
CN102304897A (en) * 2011-07-28 2012-01-04 北京特希达特种设备技术有限公司 Bridge structure video detection method based on video detection system
CN202298459U (en) * 2011-10-25 2012-07-04 浙江大合建设工程检测有限公司 Bridge detecting device
CN203625772U (en) * 2013-10-12 2014-06-04 武汉二航路桥特种工程有限责任公司 Stay-cable maintenance trolley based on parallel double cables
CN204940111U (en) * 2015-09-10 2016-01-06 浙江省建筑科学设计研究院有限公司 A kind of bridge detecting device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108931524A (en) * 2018-04-27 2018-12-04 上海宝钢工业技术服务有限公司 Rail mounted driving hanging beam fatigue crack detection device
CN108931524B (en) * 2018-04-27 2020-12-04 上海宝钢工业技术服务有限公司 Track type crane beam fatigue crack detection device
CN109060282A (en) * 2018-10-23 2018-12-21 王本勋 A kind of road and bridge detection device
CN109060282B (en) * 2018-10-23 2021-06-25 南京轩世琪源软件科技有限公司 Road and bridge detection device

Also Published As

Publication number Publication date
CN106087729B (en) 2018-02-02
CN106087729A (en) 2016-11-09
CN106032662B (en) 2017-08-15
CN105200917B (en) 2016-11-30
CN106032662A (en) 2016-10-19

Similar Documents

Publication Publication Date Title
CN105133490B (en) Bridge detecting device and detection method thereof
CN204940111U (en) A kind of bridge detecting device
CN105200917A (en) Bridge detecting device and method
JP2007120077A (en) Erection method of elevated road bridge, and its facility
CN103726421B (en) Height and span adjustable track paver for metro construction
CN101979803B (en) Method for mounting prefabricated members of roof or floor in place and mounting equipment
CN107140565B (en) A kind of trackless deformation gantry crane
CN105129627A (en) Folding type suspension arm device supported by electric pole
CN105416096A (en) Gantry type movable electric traction line at a railway crossing
CN109944451A (en) Across both wired construction safety protection device and its construction method in one kind
CN105200918B (en) Bridge detection structure and bridge detection method adopting same
CN103821084B (en) Operational method at the bottom of implement at the bottom of beam and beam
CN204898521U (en) Bridge detects structure
CN108755718A (en) High Slope on Expressway beats anchor shaft anchor cable apparatus for work
CN108004930A (en) The construction method of vertical shift bowstring arch bridge
CN103742160A (en) Mounting device for upper structure in tunnel
KR101003403B1 (en) Moving bridge inspection equipment
CN205476721U (en) Car access arrangement for stereo garage
CN205838444U (en) A kind of prefabricated component transport vehicle
CN201801322U (en) High-speed railway deck construction vehicle
CN203878478U (en) A bridge girder erection machine with a single arm box girder
CN210366808U (en) Lifting and dismantling device for rail walking
CN110565515B (en) Bridge check out test set
KR101525557B1 (en) Beam launcher with three auto anchorages and oil cylinder
CN201736834U (en) Electrified railway container station hydraulic mobile contact network and control system thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
COR Change of bibliographic data
CB03 Change of inventor or designer information

Inventor after: Cao Lingjian

Inventor after: Cheng Bo

Inventor after: Hou Hongwei

Inventor after: Yuan Wenwei

Inventor after: Tang Shaoming

Inventor after: Qian Zhihua

Inventor before: Hou Hongwei

C14 Grant of patent or utility model
GR01 Patent grant