CN111364357B - Movable road and bridge detection device - Google Patents
Movable road and bridge detection device Download PDFInfo
- Publication number
- CN111364357B CN111364357B CN202010208221.3A CN202010208221A CN111364357B CN 111364357 B CN111364357 B CN 111364357B CN 202010208221 A CN202010208221 A CN 202010208221A CN 111364357 B CN111364357 B CN 111364357B
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- adjusting block
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
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- Civil Engineering (AREA)
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention provides a movable road and bridge detection device, which comprises a mobile station, wherein an adjusting plate capable of horizontally moving along the mobile station is arranged on the upper side of the mobile station, an adjusting block is arranged on the upper side of the adjusting plate, a detection arm is arranged on the upper side of the adjusting block, one end of the detection arm is rotatably connected with the adjusting block, an infrared detector is arranged at the other end of the detection arm, and a first power mechanism for driving the detection arm to rotate in a reciprocating manner is arranged on the adjusting block; the two sides of the adjusting block are respectively provided with an L-shaped adjusting rod, one end of each L-shaped adjusting rod is inserted into the adjusting block, and the two sides of the top of the adjusting block are respectively provided with a second power mechanism for driving the corresponding L-shaped adjusting rod to move along the adjusting block; and the other end of each L-shaped adjusting rod is rotatably connected with a crack detection mechanism. The device carries out crack detection to road surface bridge through detecting the arm, adjusts the pole when detecting crack back rethread L type and realizes improving the detection precision to scanning cracked accurate detection, and the later maintenance of being convenient for shortens the later maintenance time, improves work efficiency.
Description
Technical Field
The invention relates to the technical field of road and bridge detection devices, in particular to a movable road and bridge detection device.
Background
With the rapid development of the modern traffic industry, roads and bridges are usually erected on the water surface or above pedestrians and road surfaces to dredge people flow and enable traffic to be more convenient and faster. For better erecting roads and bridges, the bridge deck structure, the pier structure, the support structure, etc. are generally included. Due to long-term driving and the influence of outside weather, cracks usually appear at the bottom of the bridge, which has great influence on the safety and durability of the whole bridge structure. Therefore, regular crack detection and maintenance of the bridge are required.
However, the existing bridge crack detection device is too large in overall size, rapid scanning detection cannot be performed on the bottom of a bridge, and detection efficiency is low. In addition, the current detection device cannot accurately collect the detection data of the crack, which is not beneficial to later maintenance.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a movable road and bridge detection device, which is used for detecting cracks of a road and bridge through a detection arm, and realizing accurate detection of scanning cracks through an L-shaped adjusting rod after the cracks are detected, so that the detection precision is improved, the later maintenance is facilitated, the later maintenance time is shortened, and the working efficiency is improved.
In order to achieve the above object, the technical solution of the present invention is as follows.
A movable road and bridge detection device comprises a mobile station, wherein an adjusting plate capable of horizontally moving along the mobile station is arranged on the upper side of the mobile station, an adjusting block is arranged on the upper side of the adjusting plate, a detection arm is arranged on the upper side of the adjusting block, one end of the detection arm is rotatably connected with the adjusting block, an infrared detector is arranged at the other end of the detection arm, and a first power mechanism for driving the detection arm to rotate in a reciprocating mode is arranged on the adjusting block; the two sides of the adjusting block are respectively provided with an L-shaped adjusting rod, one end of each L-shaped adjusting rod is inserted into the adjusting block, and the two sides of the top of the adjusting block are respectively provided with a second power mechanism for driving the corresponding L-shaped adjusting rod to move along the adjusting block; and the other end of each L-shaped adjusting rod is rotatably connected with a crack detection mechanism.
Further, one side of mobile station is equipped with the controller, the controller includes touch display screen and control module, touch display screen install in control module's upside, and with control module electric connection, control module respectively with infrared detector crack detection mechanism electric connection.
Furthermore, one side of the mobile station is provided with a protective shell for installing the controller, one side of the protective shell, which is close to the touch display screen, is provided with a protective cover plate, and one side of the protective cover plate is hinged to the protective shell.
Furthermore, the upper side of the mobile station is symmetrically provided with an I-shaped sliding rail, the lower side of the adjusting plate is provided with pulley assemblies matched with the corresponding sliding rails, and each pulley assembly is buckled on the corresponding sliding rail and moves along the sliding rail.
Furthermore, both ends of the mobile station are provided with telescopic push rods for driving the adjusting plates to move, one end of each telescopic push rod is abutted against the adjusting plate, and the other end of each telescopic push rod is provided with a pneumatic pump for driving the corresponding telescopic push rod to move in a telescopic manner; and each pneumatic pump is provided with a laser range finder for detecting the moving position of the adjusting plate on one side.
Furthermore, the adjusting block is rotatably connected with the adjusting plate, the lower end of the adjusting block is inserted into the adjusting plate, and a third servo motor for driving the adjusting block to rotate is arranged on the adjusting plate.
Furthermore, a rotating block used for limiting the rotating track of the detection arm is arranged on the upper side of the adjusting block, a fan-shaped rotating cavity is arranged in the rotating block, a rotating shaft is mounted at one end of the detection arm, and two ends of the rotating shaft penetrate through the bottom end of the rotating cavity and are rotatably connected with the rotating block; the first power mechanism is a first servo motor, and an output shaft of the first servo motor is connected with one end of the rotating shaft through a reduction gear set and drives the rotating shaft to rotate.
Further, be equipped with the alarm on the regulating block, the alarm with infrared detector electric connection, when infrared detector detected the crack, the alarm starts.
Furthermore, each L-shaped adjusting rod comprises a horizontal rod and a vertical rod, one side of each horizontal rod is provided with meshing teeth, 2 through holes are formed in the side wall of each adjusting block respectively, a plurality of gears matched with the meshing teeth on the corresponding horizontal rod are arranged on the inner wall of one side of each through hole at equal intervals, and each gear is rotatably arranged in the side wall of the corresponding through hole; each second power mechanism comprises a second servo motor, and one end of an output shaft of each second servo motor is inserted into one side of the adjusting block and extends to the corresponding gear.
Furthermore, one end of each vertical rod is detachably connected with the end part of the horizontal rod, the other end of each vertical rod is provided with an installation block, and the crack detection mechanism is rotatably installed on the installation block; the crack detection mechanism comprises a rotating plate, and a crack detector and a camera which are arranged at two ends of the rotating plate, wherein a rotating part is arranged at the middle part of the rotating plate, and a fourth servo motor which drives the rotating part to rotate is arranged on the installation block. Here, the crack detector is an ultrasonic crack detector.
The invention has the beneficial effects that:
compared with the prior art, the movable road and bridge detection device provided by the invention has the advantages that the movability of the device is realized through the mobile station, the fixed-point movement of the detection equipment is realized through the adjusting plate, and the detection accuracy is improved. In the detection process, the detection arm can realize reciprocating swing through the first power mechanism, so that infrared scanning detection on the bottom surface of the bridge is realized, cracks on the bottom surface of the bridge are judged, and the detection efficiency is improved.
When detecting the bridge crack, adjust the pole through the second power unit and remove near the crack that detects with the L type, carry out accurate detection to the bridge crack through crack detection mechanism, improve and detect the precision, the maintenance in the later stage of being convenient for, and can shorten later maintenance time, improve work efficiency.
The device has the advantages of simple overall structure, convenience in use, high detection efficiency and high detection precision.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of an L-shaped adjusting lever and an adjusting block in embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of an L-shaped adjusting rod and a crack detection mechanism in embodiment 1 of the present invention.
Fig. 4 is a schematic structural diagram of a controller in embodiment 1 of the present invention.
Fig. 5 is a schematic structural view of an adjusting plate and a slide rail in embodiment 1 of the invention.
Fig. 6 is a schematic structural diagram of an adjusting plate, an adjusting block, and a detecting arm in embodiment 1 of the invention.
In the figure: 1. a mobile station; 2. an adjusting plate; 3. an adjusting block; 4. a detection arm; 5. an infrared detector; 6. a first power mechanism; 7. an L-shaped adjusting rod; 701. a horizontal bar; 702. a vertical rod; 8. a second power mechanism; 9. a crack detection mechanism; 901. a rotating plate; 902. a crack detector; 903. a camera; 904. a rotating member; 10. a touch display screen; 11. a control module; 12. a protective housing; 13. a protective cover plate; 14. a slide rail; 15. a sheave assembly; 16. a telescopic push rod; 17. a pneumatic pump; 18. a laser range finder; 19. a third servo motor; 20. rotating the block; 21. rotating the cavity; 22. a rotating shaft; 23. a through hole; 24. a gear; 25. mounting blocks; 26. a fourth servo motor; 27. an alarm.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
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.
In the description of the present invention, "a number" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Example 1
Referring to fig. 1 to 6, the movable road and bridge detection device provided by the embodiment of the invention comprises a moving table 1, wherein an adjusting plate 2 capable of moving horizontally along the moving table 1 is arranged on the upper side of the moving table 1, and fixed-point movement of the detection equipment is realized through the adjusting plate. The upper side of regulating plate 2 is equipped with regulating block 3, and the upside of regulating block 3 is equipped with and is used for detecting cracked detection arm 4 in bridge bottom surface, realizes the infrared scanning of bridge bottom surface through the reciprocating swing of detection arm and surveys for judge the crack in bridge bottom surface. One end of the detection arm 4 is rotatably connected with the adjusting block 3, and the rotating direction of the detection arm is vertical to the moving direction of the adjusting plate; the other end is provided with an infrared detector 5 for detecting cracks, and the adjusting block 3 is provided with a first power mechanism 6 for driving the detecting arm 4 to rotate back and forth; the reciprocating swing is realized through a first power mechanism. The two sides of the adjusting block 3 are respectively provided with an L-shaped adjusting rod 7, one end of each L-shaped adjusting rod 7 is inserted on the adjusting block 3 and is connected with the adjusting block in a sliding manner, and the two sides of the adjusting block 3 are respectively provided with a second power mechanism 8 for driving the corresponding L-shaped adjusting rod 7 to move along the adjusting block 3; the other end of each L-shaped adjusting rod 7 is rotatably connected with a crack detection mechanism 9. The corresponding L-shaped adjusting rod is moved to the position near the detected crack through the second power mechanism, and the bridge crack is conveniently and accurately detected through the crack detection mechanism.
In the embodiment of the invention, the device realizes the mobility through the mobile station, realizes the fixed-point movement of the detection equipment through the adjusting plate, and improves the detection accuracy. In the detection process, the detection arm can realize reciprocating swing through the first power mechanism, so that infrared scanning detection on the bottom surface of the bridge is realized, cracks on the bottom surface of the bridge are judged, and the detection efficiency is improved.
When detecting the bridge crack, adjust the pole through the second power unit and remove near the crack that detects with the L type, carry out accurate detection to the bridge crack through crack detection mechanism, improve and detect the precision, the maintenance in the later stage of being convenient for, and can shorten later maintenance time, improve work efficiency.
The device has the advantages of simple overall structure, convenience in use, high detection efficiency and high detection precision.
As shown in fig. 1 and 4, a controller is disposed on one side of the mobile station 1, the controller includes a touch display screen 10 and a control module 11, the touch display screen 10 is installed on an upper side of the control module 11 and is electrically connected to the control module 11, and the control module 11 is electrically connected to the infrared detector 5 and the crack detection mechanism 9, respectively. The control module sends a detection instruction through the touch display screen, sends the detection instruction to the infrared detector and the crack detection mechanism, receives detection data from the infrared detector and the crack detection mechanism, and displays the detection data through the touch display screen.
A protective housing 12 for mounting a controller is provided at one side of the mobile station 1 for protecting the controller and the touch display screen. One side that protective housing 12 is close to touch display screen 10 is equipped with protective cover 13, and one side of protective cover 13 is articulated with protective housing 12, provides the protection to touch display screen through protective cover, only needs the protective cover that turns up to normally use touch display screen.
Referring to fig. 1 and 5, the upper side of the mobile station 1 is symmetrically provided with i-shaped slide rails 14, the lower side of the adjusting plate 2 is provided with pulley assemblies 15 adapted to the corresponding slide rails 14, and each pulley assembly 15 is fastened to the corresponding slide rail 14 and moves along the slide rail 14. Through the cooperation of loose pulley assembly and slide rail, make the regulating plate can move along the top of mobile station, adjust the pole with the use of cooperation L type with detecting the arm, make its in-process that can remove detect, further increase the area of surveying, improve detection efficiency.
In order to conveniently and accurately control the movement of the adjusting plate, telescopic push rods 16 for driving the adjusting plate 2 to move are arranged at two ends of the mobile station 1, one end of each telescopic push rod 16 is abutted to the adjusting plate 2, and the other end of each telescopic push rod 16 is provided with a pneumatic pump 17 for driving the corresponding telescopic push rod 16 to move in a telescopic manner; one side of each pneumatic pump 17 is provided with a laser range finder 18 for detecting the moving position of the adjusting plate 2. The pneumatic pumps on the two sides of the adjusting plate drive the corresponding telescopic rods to move in a telescopic mode, so that the adjusting plate is driven to move, the moving distance of the adjusting plate is measured through the laser range finder, the moving position of the adjusting plate is conveniently and accurately controlled, and the detection precision is improved.
As shown in fig. 6, an adjusting block for facilitating installation of the detecting arm is disposed on the adjusting plate, wherein the adjusting block 3 is rotatably connected to the adjusting plate 2, so that the adjusting arm on the adjusting block can rotate along with the rotation of the adjusting block, thereby facilitating detection of bridge bottom surfaces in different areas. The lower end of the adjusting block 3 is inserted on the adjusting plate 2, and a third servo motor 19 for driving the adjusting block 3 to rotate is arranged on the adjusting plate 2. The output shaft of the third servo motor is fixedly connected with the adjusting block, and the adjusting block is driven to rotate through the rotation of the output shaft of the third servo motor, so that the detection position is adjusted.
A rotating block 20 for limiting the rotating track of the detection arm 4 is arranged on the upper side of the adjusting block 3, a fan-shaped rotating cavity 21 is arranged in the rotating block 20, a through hole is formed in the top of the rotating block, and one point of the detection arm penetrates through the through hole, is inserted into the bottom of the rotating cavity and is rotatably connected with the rotating block; a rotating shaft 22 is arranged at one end of the detection arm 4 positioned at the bottom of the rotating cavity 21, and two ends of the rotating shaft 22 penetrate through the bottom end of the rotating cavity 21 and are rotatably connected with the rotating block 20; the first power mechanism 8 is a first servo motor, and an output shaft of the first servo motor is connected to one end of the rotating shaft 22 through a reduction gear set and drives the rotating shaft 22 to rotate. The first servo motor is started, the reduction gear set is driven to rotate through the first servo motor, and then the rotating shaft is driven to rotate, so that the detection arm rotates in the rotating cavity. The reduction gear set is a three-stage reduction gear set, and the rotation speed of the detection arm is reduced through the reduction gear set.
Be equipped with alarm 27 on the regulating block 3, alarm 27 and infrared detector 5 electric connection, when infrared detector 5 detected the crack, alarm 27 started. Here, the alarm is audible and visual alarm, and audible and visual alarm can be sent out when the detection arm detects the crack through the alarm that sets up, conveniently makes the warning.
As shown in fig. 2 and 3, each L-shaped adjusting rod 7 includes a horizontal rod 701 and a vertical rod 702, one side of each horizontal rod 701 is provided with engaging teeth, that is, a rack is provided on the side wall of the horizontal rod, the rack is provided with a plurality of engaging teeth, 2 through holes 23 for the horizontal rod to pass through are respectively provided in the side wall of the adjusting block 3, a plurality of gears 24 adapted to the engaging teeth on the corresponding horizontal rod 701 are provided on the inner wall of one side of each through hole 23 at equal intervals, and each gear 24 is rotatably installed in the side wall of the corresponding through hole 23; each second power mechanism 8 comprises a second servo motor, and one end of an output shaft of each second servo motor is inserted into one side of the adjusting block 3 and extends to the corresponding gear 24. The output shaft of the second servo motor can drive the corresponding gear to rotate, and the meshing teeth on the horizontal rod are meshed with the gear, so that the horizontal rod moves horizontally along with the rotation of the gear and is used for adjusting the movement of the L-shaped adjusting rod.
As shown in fig. 3, one end of each vertical rod 702 is detachably connected to the end of the horizontal rod 701, the other end of each vertical rod is provided with a mounting block 25 for mounting the crack detection mechanism, and the crack detection mechanism 9 is rotatably mounted on the mounting block 25, so that the crack detection mechanism can rotate on the mounting block; the crack detection mechanism 9 includes a rotating plate 901, and a crack detector 902 and a camera 903 installed at two ends of the rotating plate 901, the middle portion of the rotating plate is installed on the installation block and is rotatably connected with the installation block, a rotating part 904 is arranged at the middle portion of the rotating plate 901, and a fourth servo motor 26 for driving the rotating part 904 to rotate is arranged on the installation block 25. Namely, one end of the rotating part is inserted in the middle of the rotating plate, and the output shaft of the fourth servo motor is fixedly connected. The output shaft of the fourth servo motor can drive the rotating part to rotate, and then the rotating plate is driven to rotate, so that the crack detector and the camera which are positioned on the rotating plate rotate along with the rotation of the rotating plate, the detection range is enlarged, and the detection efficiency is improved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The movable road and bridge detection device is characterized by comprising a mobile station (1), wherein an adjusting plate (2) capable of horizontally moving along the mobile station (1) is arranged on the upper side of the mobile station (1), an adjusting block (3) is arranged on the upper side of the adjusting plate (2), a detection arm (4) is arranged on the upper side of the adjusting block (3), one end of the detection arm (4) is rotatably connected with the adjusting block (3), an infrared detector (5) is arranged at the other end of the detection arm, and a first power mechanism (6) for driving the detection arm (4) to rotate in a reciprocating mode is arranged on the adjusting block (3); l-shaped adjusting rods (7) are arranged on two sides of the adjusting block (3), one end of each L-shaped adjusting rod (7) is inserted into the adjusting block (3), and second power mechanisms (8) for driving the corresponding L-shaped adjusting rods (7) to move along the adjusting block (3) are arranged on two sides of the top of the adjusting block (3); the other end of each L-shaped adjusting rod (7) is rotatably connected with a crack detection mechanism (9);
a rotating block (20) used for limiting the rotating track of the detection arm (4) is arranged on the upper side of the adjusting block (3), a fan-shaped rotating cavity (21) is formed in the rotating block (20), a rotating shaft (22) is mounted at one end of the detection arm (4), and two ends of the rotating shaft (22) penetrate through the bottom end of the rotating cavity (21) and are rotatably connected with the rotating block (20); the first power mechanism (6) is a first servo motor, and an output shaft of the first servo motor is connected with one end of the rotating shaft (22) through a reduction gear set and drives the rotating shaft (22) to rotate;
each L-shaped adjusting rod (7) comprises a horizontal rod (701) and a vertical rod (702), meshing teeth are arranged on one side of each horizontal rod (701), 2 through holes (23) are formed in the side wall of each adjusting block (3), a plurality of gears (24) matched with the meshing teeth on the corresponding horizontal rod (701) are arranged on the inner wall of one side of each through hole (23) at equal intervals, and each gear (24) is rotatably arranged in the side wall of the corresponding through hole (23); each second power mechanism (8) comprises a second servo motor, and one end of an output shaft of each second servo motor is inserted into one side of the adjusting block (3) and extends to a gear (24) corresponding to the adjusting block;
one end of each vertical rod (702) is detachably connected with the end of the horizontal rod (701), the other end of each vertical rod is provided with an installation block (25), and the crack detection mechanism (9) is rotatably installed on the installation block (25); the crack detection mechanism (9) comprises a rotating plate (901), and a crack detector (902) and a camera (903) which are installed at two ends of the rotating plate (901), wherein a rotating piece (904) is arranged in the middle of the rotating plate (901), and a fourth servo motor (26) which drives the rotating piece (904) to rotate is arranged on the installation block (25).
2. The movable road and bridge detection device according to claim 1, wherein a controller is arranged on one side of the movable platform (1), the controller comprises a touch display screen (10) and a control module (11), the touch display screen (10) is installed on the upper side of the control module (11) and is electrically connected with the control module (11), and the control module (11) is electrically connected with the infrared detector (5) and the crack detection mechanism (9) respectively.
3. The movable road and bridge detection device according to claim 2, wherein a protective shell (12) for installing the controller is arranged on one side of the mobile station (1), a protective cover plate (13) is arranged on one side of the protective shell (12) close to the touch display screen (10), and one side of the protective cover plate (13) is hinged with the protective shell (12).
4. The movable road and bridge detection device according to claim 1, wherein the upper side of the movable table (1) is symmetrically provided with i-shaped sliding rails (14), the lower side of the adjusting plate (2) is provided with pulley assemblies (15) adapted to the corresponding sliding rails (14), and each pulley assembly (15) is buckled on the corresponding sliding rail (14) and moves along the sliding rail (14).
5. The movable road and bridge detection device according to claim 4, wherein both ends of the mobile station (1) are provided with telescopic push rods (16) for driving the adjusting plate (2) to move, one end of each telescopic push rod (16) is abutted to the adjusting plate (2), and the other end is provided with a pneumatic pump (17) for driving the corresponding telescopic push rod (16) to move in a telescopic manner; and one side of each pneumatic pump (17) is provided with a laser range finder (18) for detecting the moving position of the adjusting plate (2).
6. The movable road and bridge detection device according to claim 1, wherein the adjusting block (3) is rotatably connected with the adjusting plate (2), the lower end of the adjusting block (3) is inserted into the adjusting plate (2), and a third servo motor (19) for driving the adjusting block (3) to rotate is arranged on the adjusting plate (2).
7. The movable road and bridge detection device according to claim 1, wherein an alarm (27) is arranged on the adjusting block (3), the alarm (27) is electrically connected with the infrared detector (5), and when the infrared detector (5) detects a crack, the alarm (27) is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010208221.3A CN111364357B (en) | 2020-03-23 | 2020-03-23 | Movable road and bridge detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010208221.3A CN111364357B (en) | 2020-03-23 | 2020-03-23 | Movable road and bridge detection device |
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| Publication Number | Publication Date |
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| CN111364357A CN111364357A (en) | 2020-07-03 |
| CN111364357B true CN111364357B (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010208221.3A Expired - Fee Related CN111364357B (en) | 2020-03-23 | 2020-03-23 | Movable road and bridge detection device |
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| CN (1) | CN111364357B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730616B (en) * | 2020-12-24 | 2024-01-16 | 浙江路达机械仪器有限公司 | Cement pavement internal crack detection device |
| CN112856139A (en) * | 2021-02-22 | 2021-05-28 | 李林 | Anti-frost crack detection control system for intelligent building and detection method thereof |
| CN116145545B (en) * | 2023-04-19 | 2023-06-27 | 山西省交通建设工程质量检测中心（有限公司） | Bridge bottom surface crack detection device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101482522B1 (en) * | 2013-04-03 | 2015-01-30 | 주식회사 장헌산업 | Nodular Box Girder, and Nodular Box Girder Bridge and Constructing Method thereof |
| CN208860755U (en) * | 2018-07-01 | 2019-05-14 | 中建八局第三建设有限公司 | A kind of road and bridge crack detecting device |
| CN108956891B (en) * | 2018-08-01 | 2021-01-08 | 山东省公路桥梁检测中心有限公司 | Automatic bridge crack detection method |
| CN108827237A (en) * | 2018-08-07 | 2018-11-16 | 安徽恒信建设工程管理有限公司 | A kind of dual probe Tunnel testing instrument |
| CN209460156U (en) * | 2019-02-02 | 2019-10-01 | 刘琼 | A kind of road and bridge detection device |
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2020
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Granted publication date: 20210907 |