CN112813779B - Municipal works road surface roughness detection robot - Google Patents
Municipal works road surface roughness detection robot Download PDFInfo
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- CN112813779B CN112813779B CN202011637015.0A CN202011637015A CN112813779B CN 112813779 B CN112813779 B CN 112813779B CN 202011637015 A CN202011637015 A CN 202011637015A CN 112813779 B CN112813779 B CN 112813779B
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- mounting frame
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
- E01H1/05—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes
- E01H1/056—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes having horizontal axes
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
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Abstract
The invention discloses a municipal engineering pavement flatness detection robot, which comprises: the shock-absorbing plate vehicle is used for traveling along a traveling direction and comprises a bottom plate and wheel mounting frames arranged at four corners of the bottom plate, and electric universal wheels are arranged on the wheel mounting frames; the first mounting frame and the second mounting frame are symmetrically arranged relative to a first symmetrical plane, the first symmetrical plane is a vertical plane parallel to the walking direction, and the first mounting frame and the second mounting frame can synchronously move back and forth along the direction close to or away from the first symmetrical plane; the first distance measuring sensors are arranged along the direction vertical to the first symmetrical plane, the detection ends of the first distance measuring sensors face downwards, and the upper ends of the first distance measuring sensors are fixed on the lower surface of the bottom plate; the second distance measuring sensors are arranged on the first mounting frame and the second mounting frame in the same number, the detection end of each second distance measuring sensor faces downwards, the upper end of each second distance measuring sensor is fixed on the first mounting frame and the second mounting frame, and the second distance measuring sensors on the first mounting frame and the second mounting frame are arranged along the direction perpendicular to the first symmetrical plane respectively. The robot is suitable for pavements of different widths.
Description
In thatTechnical Field
The invention relates to the technical field of road flatness detection, in particular to a municipal engineering road flatness detection robot.
Background
The flatness is one of the important indexes of the pavement construction quality and service level. Uneven road surfaces increase the driving resistance and cause additional vibration effects on the vehicle. This vibration can cause bumps in the ride, affecting speed and safety of the ride, smoothness of the ride, and passenger comfort. At the same time, the vibratory action also imparts impact forces to the road surface, thereby exacerbating road and vehicle damage and tire wear. Uneven road surface can accumulate rainwater, and the damage of road surface is accelerated. Therefore, the detection and evaluation of the flatness are very important links for the construction and maintenance of the highway.
Chinese patent CN201922417927.6 discloses a ground flatness detection device for town road construction, and relates to the field of town road construction. This ground flatness detection device for town road construction, including two frames, the gyro wheel is all installed at both ends around the bottom surface of two frames, is provided with two connecting rods between two frames, and the both ends of two connecting rods all are connected with the last fixed surface of two frames, are provided with two between two frames and clean the mechanism, and two both ends of cleaning the mechanism are pegged graft respectively in the inside of two frames, through two diaphragm fixed connection between two connecting rods.
The device can not adapt to the road surface of measuring the broad, and measure accurate inadequately.
Disclosure of Invention
For solving above-mentioned technical problem, provide a municipal works road surface roughness detection robot, this robot can detect the road surface of different width.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a municipal works road surface roughness inspection robot, includes:
the shock-absorbing plate vehicle is used for traveling along a traveling direction and comprises a bottom plate and mounting frames arranged at four corners of the bottom plate, wherein electric universal wheels are arranged on the mounting frames;
the first mounting frame and the second mounting frame are symmetrically arranged relative to a first symmetrical plane, the first symmetrical plane is a vertical plane parallel to the walking direction, and the first mounting frame and the second mounting frame can synchronously move back and forth along the direction close to or away from the first symmetrical plane;
the first distance measuring sensors are arranged along the direction vertical to the first symmetrical plane, the detection ends of the first distance measuring sensors face downwards, and the upper ends of the first distance measuring sensors are fixed on the lower surface of the bottom plate;
the second distance measuring sensors are arranged on the first mounting frame and the second mounting frame in the same number, the detection end of each second distance measuring sensor faces downwards, the upper end of each second distance measuring sensor is fixed on the first mounting frame and the second mounting frame, and the second distance measuring sensors on the first mounting frame and the second mounting frame are arranged along the direction perpendicular to the first symmetrical plane respectively.
Preferably, a first concave wheel and a second concave wheel are respectively arranged on two sides of the first mounting rack and the second mounting rack along the walking direction, and the first concave wheel and the second concave wheel are respectively arranged at the positions where the first mounting rack and the second mounting rack are close to each other, a sliding groove with an upward opening is arranged at the position of the bottom plate corresponding to the first symmetrical plane, a bidirectional threaded rod is arranged on the sliding groove, two thread parts of the two-way threaded rod are both in threaded connection with a thread sliding block, the two thread sliding blocks are respectively arranged in the sliding groove and positioned on two sides of the first mounting rack or the second mounting rack along the walking direction, a third concave wheel is rotatably arranged on the upper surface of each thread sliding block, the rotating axis of the third concave wheel is vertically arranged, and the third concave wheel is consistent with the heights of the first concave wheel and the second concave wheel, and each third concave wheel is in transmission connection with the first concave wheel and the second concave wheel on the corresponding side through synchronous belts.
Preferably, the polished rod is arranged on both sides of the first mounting frame and the second mounting frame along the traveling direction, the polished rod extends in the direction perpendicular to the first symmetrical plane, two ends of the polished rod are fixed on the corresponding first mounting frame or the second mounting frame, the sliding frame is arranged at the position corresponding to each polished rod on the bottom plate, each polished rod can slidably penetrate through the corresponding sliding frame, a first spring is sleeved on each polished rod, one end of the first spring is abutted against the corresponding sliding frame, the other end of the first spring is abutted against the outer side of the first mounting frame or the second mounting frame where the first spring is arranged, and the first spring is always in a compressed state.
Preferably, the cleaning device further comprises a cleaning mechanism, wherein the cleaning mechanism comprises:
the scraper brush roll is rotatably arranged at the head of the vibration-damping scooter, the rotation axis of the scraper brush roll is perpendicular to the first symmetrical plane, first bristles and second bristles are spirally arranged on the circumferential surface of the scraper brush roll, the first bristles and the second bristles are symmetrically arranged relative to the first symmetrical plane, the rotating direction of the first bristles is opposite to that of the second bristles, and the rotating direction is configured to enable materials such as sand stones on the road surface to be cleaned towards the direction far away from the first symmetrical plane.
Preferably, the sweeping mechanism further comprises:
the rotating frame is arranged at the front end of the bottom plate, and the harrow and brush roll is rotatably arranged on one side of the rotating frame, which is far away from the bottom plate;
the worm wheel is coaxially and fixedly arranged in the middle of the harrowing brush roller;
the second motor is arranged on the rotating frame;
and the worm is arranged on the output shaft of the second motor and meshed with the worm wheel.
Preferably, the turret comprises:
a movable base fixed to a front end of the base plate;
the rotating rod can rotatably penetrate through the rotating seat along the direction perpendicular to the first symmetrical plane;
the two connecting rods are arranged at two ends of the rotating rod, the extending direction of the two connecting rods is vertical to the rotating rod, and the harrow brush roll is rotatably arranged on the two rotating rods;
the mounting plate is arranged between the two connecting rods, and the second motor is arranged on the upper surface of the mounting plate;
and the shell of the electric push rod is hinged with the lower surface of the bottom plate, and the telescopic rod of the electric push rod is hinged with the lower surface of the placing plate.
Preferably, the wheel mount includes:
the I-shaped frame is horizontally arranged and is I-shaped when viewed from top, and the openings on two sides of the I-shaped frame are arranged along the walking direction;
the fixing pin can be arranged on the bottom plate in a mode of moving up and down within a certain range, and the lower end of the fixing pin penetrates through the I-shaped frame;
the second spring is sleeved on the fixing pin, the upper end of the second spring abuts against the lower surface of the bottom plate, the lower end of the second spring abuts against the I-shaped frame, and the second spring is always in a compressed state;
the mount pad is articulated with the lower extreme of fixed pin, and its both sides along the walking direction set up the extension spring, the extension spring is connected on the corresponding side of I-shaped frame, the extension spring is in the state by tensile all the time.
Compared with the prior art, the invention has the beneficial effects that:
the invention can realize the detection of the planeness of the road surfaces with different widths, and the cleaning mechanism is arranged, so that the detection accuracy is higher.
Drawings
FIGS. 1 and 3 are perspective views of the present invention from two different perspectives, respectively;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is a top view of the present invention;
FIG. 5 is a cross-sectional view taken at section B-B of FIG. 4;
FIG. 6 is a perspective cross-sectional view taken at section B-B of FIG. 4;
FIG. 7 is a side view of the present invention;
FIG. 8 is a front view of the present invention;
FIG. 9 is an enlarged view of the invention at C of FIG. 7;
fig. 10 is a perspective view of the cleaning mechanism of the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
A flatness detection device for a repaired municipal engineering pavement comprises a shock absorber plate vehicle 1, a vibration absorber plate vehicle and a detection device, wherein the shock absorber plate vehicle is used for traveling along a traveling direction; the first mounting frame 2a and the second mounting frame 2b are symmetrically arranged relative to a first symmetrical plane, the first symmetrical plane is a vertical plane parallel to the walking direction, and the first mounting frame 2a and the second mounting frame 2b can synchronously move back and forth along the direction close to or away from the first symmetrical plane; the working ends of the first ranging sensors 3 face downwards vertically and are arranged on the lower surface of the shock absorbing plate trailer 1, the first ranging sensors 3 are arranged at equal intervals along the direction perpendicular to the first symmetrical plane, the working ends of the second ranging sensors 4 face downwards vertically and are arranged on the first mounting frame 2a and the second mounting frame 2b, the second ranging sensors 4 are arranged along the direction perpendicular to the first symmetrical plane, and the first ranging sensor matrix 3 and the second ranging sensor matrix 4 are both electrically connected with the controller; the sweeping mechanism 5 comprises a raking brush roller 5a which is rotatably arranged at the head of the damper truck 1, the rotation axis of the raking brush roller 5a is parallel to the sliding direction, first bristles 5a1 and second bristles 5a2 are spirally arranged on the circumferential surface of the raking brush roller 5a, the first bristles 5a1 and the second bristles 5a2 are symmetrically arranged relative to the first symmetrical plane, the rotating direction of the first bristles 5a1 is opposite to that of the second bristles 5a2, and the rotating direction is configured to enable materials such as sand and stones on the road surface to be swept towards the direction far away from the first symmetrical plane. First distance measuring sensor 3 and second distance measuring sensor 4 can acquire its and ground distance, can judge through the distance that acquires whether the road surface is level and smooth to can be applicable to the road surface of different widths for the volume of stretching out of shock absorber plate car 1 through adjustment first mounting bracket 2a and second mounting bracket 2 b.
As shown in fig. 7, the shock absorbing scooter 1 includes a base plate 1 a; the wheel mounting frames 1b are arranged at four corners of the bottom plate 1 a; and the electric universal wheel 1c is arranged at the lower end of the wheel mounting frame 1 b.
The first and second mounting brackets 2a, 2b are each arranged on a first rail 2c, the first rail 2c extending in a direction perpendicular to the first plane of symmetry, the first and second mounting brackets 2a, 2b being slidably supported on the first rail 2 c.
Further, a first concave wheel 2a1 and a second concave wheel 2b1 are provided on both sides of the first mount 2a and the second mount 2b in the traveling direction, respectively, and the first concave wheel 2a1 and the second concave wheel 2b1 are provided at positions where the first mount 2a and the second mount 2b are close to each other, respectively.
A sliding groove 1a1 with an upward opening is arranged at a position of the bottom plate 1a corresponding to the first symmetrical plane, a bidirectional threaded rod is arranged on the sliding groove 1a1, a threaded slider 2f is connected to each of two threaded portions of the bidirectional threaded rod in a threaded manner, the two threaded sliders 2f are respectively arranged in the sliding groove 1a1 and located at two sides of the first mounting rack 2a or the second mounting rack 2b along the traveling direction, a third concave wheel 2h is rotatably arranged on an upper surface of each threaded slider 2f, a rotation axis of the third concave wheel 2h is vertically arranged, the third concave wheel 2h is in accordance with heights of the first concave wheel 2a1 and the second concave wheel 2b1, each third concave wheel 2h is in transmission connection with the first concave wheel 2a1 and the second concave wheel 2b1 at the corresponding side through a synchronous belt 2i, and since the length of the belt is fixed, when the threaded slider 2f drives the corresponding third concave wheel 2h to move back and forth along the length direction of the sliding groove 1a1, the first mounting frame 2a and the second mounting frame 2b can be driven to move back and forth.
And polished rods 2k are arranged on two sides of the first mounting frame 2a and the second mounting frame 2b along the walking direction, the polished rods 2k extend along the direction perpendicular to the first symmetrical plane, and two ends of the polished rods 2k are fixed on the corresponding first mounting frame 2a or the second mounting frame 2 b. A carriage 2m is provided on the bottom plate 1a at a position corresponding to each polished rod 2k, and each polished rod 2k slidably passes through the corresponding carriage 2 m. The cover is equipped with a first spring 2n on every polished rod 2k, the one end of first spring 2n supports and leans on corresponding carriage 2n, and the other end supports and leans on the outside at its first mounting bracket 2a or second mounting bracket 2b at place, and first spring 2n is in the state of compressed all the time to make first mounting bracket 2a and second mounting bracket 2b have the trend of keeping away from the direction removal on first symmetry plane all the time, just so make hold-in range 2i taut all the time, when two threaded rod drive two screw slider 2f round trip movement, can make first mounting bracket 2a and second mounting bracket 2b be close to each other or keep away from each other through hold-in range 2 i.
The bidirectional threaded rod is driven by a first motor 2 j.
The sweeping mechanism 5 further comprises a rotating frame 5b, the rotating frame 5b is arranged at the front end of the bottom plate 1a, and the harrow and brush roller 5a is rotatably arranged on one side, away from the bottom plate 1a, of the rotating frame 5 b; the worm wheel 5c is coaxially and fixedly arranged in the middle of the harrowing and brushing roller 5 a; a second motor 5d provided on the electric rotating frame 5 b; and the worm 5e is arranged on an output shaft of the second motor 5d, is meshed with the worm wheel 5c, and can drive the harrow roller 5a to rotate through the second motor 5d so as to drive the first brush 5a1 and the second brush 5a2 to rotate.
Further, the rotating frame 5b includes a rotating seat 5b2 fixed to the front end of the base plate 1 a; a rotating lever 5b1 rotatably passing through the rotating seat 5b2 in a direction perpendicular to the first plane of symmetry; two connecting rods 5b3, which are provided at both ends of the rotating rod 5b1 and extend perpendicularly to the rotating rod 5b1, and the harrow roller 5a is rotatably provided on the two rotating rods 5b 1; a setting plate 5b4 arranged between the two connecting rods 5b3, and a second motor arranged on the upper surface of the setting plate 5b 4; electric putter 5b5, electric putter 5b 5's shell is articulated with the lower surface of bottom plate 1a, and its expansion plate is articulated with the lower surface of mounting plate 5b4, can drive the degree of contact of first brush 5a1 and second brush 5a2 and ground through electric putter 5b 5's flexible, and then can adjust according to the condition on road surface, when the road surface gravel is less, can make the contact force on brush and ground little, when the road surface gravel is more, can make the contact force on brush and ground big a bit.
Further, the wheel mounting bracket 1b comprises an i-shaped bracket 1b1, which is horizontally arranged and is i-shaped in a top view; a fixing pin 1b2 which is arranged on the bottom plate 1a in a way of moving up and down, and the lower end of the fixing pin passes through the I-shaped frame 1b 1; the second spring 1b3 is sleeved on the fixing pin 1b2, the upper end of the second spring abuts against the lower surface of the bottom plate 1a, the lower end of the second spring abuts against the I-shaped frame 1b1, and the second spring 1b3 is always in a compressed state; mount pad 1b6, it is articulated with the lower extreme of fixed pin 1b2, and its both sides along the walking direction set up extension spring 1b8, extension spring 1b8 is connected on the corresponding side of I-shaped frame 1b1, extension spring 1b8 is in the state of being stretched all the time, can guarantee the stability of whole device when detecting as far as possible through flexible mounting bracket 1b, improves the accuracy that detects. The electric universal wheels 1c are arranged on the corresponding mounting seats 1b 6.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a municipal works road flatness detection robot which characterized in that includes:
the shock-absorbing plate vehicle is used for traveling along a traveling direction and comprises a bottom plate and wheel mounting frames arranged at four corners of the bottom plate, and electric universal wheels are arranged on the wheel mounting frames;
the first mounting frame and the second mounting frame are symmetrically arranged relative to a first symmetrical plane, the first symmetrical plane is a vertical plane parallel to the walking direction, and the first mounting frame and the second mounting frame can synchronously move back and forth along the direction close to or away from the first symmetrical plane;
the first distance measuring sensors are arranged along the direction vertical to the first symmetrical plane, the detection ends of the first distance measuring sensors face downwards, and the upper ends of the first distance measuring sensors are fixed on the lower surface of the bottom plate;
the second distance measuring sensors are arranged on the first mounting frame and the second mounting frame in the same number, the detection end of each second distance measuring sensor faces downwards, the upper end of each second distance measuring sensor is fixed on the first mounting frame and the second mounting frame, and the second distance measuring sensors on the first mounting frame and the second mounting frame are respectively arranged along the direction vertical to the first symmetrical plane;
a first concave wheel and a second concave wheel are respectively arranged on the two sides of the first mounting rack and the second mounting rack along the walking direction, and the first concave wheel and the second concave wheel are respectively arranged at the positions where the first mounting rack and the second mounting rack are close to each other, a sliding groove with an upward opening is arranged at the position of the bottom plate corresponding to the first symmetrical plane, a bidirectional threaded rod is arranged on the sliding groove, two thread parts of the two-way threaded rod are both in threaded connection with a thread sliding block, the two thread sliding blocks are respectively arranged in the sliding groove and positioned on two sides of the first mounting rack or the second mounting rack along the walking direction, a third concave wheel is rotatably arranged on the upper surface of each thread sliding block, the rotating axis of the third concave wheel is vertically arranged, and the third concave wheel is consistent with the heights of the first concave wheel and the second concave wheel, and each third concave wheel is in transmission connection with the first concave wheel and the second concave wheel on the corresponding side through synchronous belts.
2. The municipal engineering road flatness detecting robot according to claim 1, wherein polished rods are arranged on both sides of the first mounting rack and the second mounting rack in the traveling direction, the polished rods extend in a direction perpendicular to the first symmetrical plane and are fixed at both ends to the corresponding first mounting rack or the second mounting rack, sliding frames are arranged on the bottom plate at positions corresponding to the polished rods, each polished rod slidably penetrates through the corresponding sliding frame, a first spring is sleeved on each polished rod, one end of the first spring abuts against the corresponding sliding frame, the other end of the first spring abuts against the outer side of the corresponding first mounting rack or the second mounting rack, and the first spring is always in a compressed state.
3. The municipal engineering road surface flatness detecting robot according to claim 1, further comprising a cleaning mechanism, said cleaning mechanism comprising:
the scraper brush roll is rotatably arranged at the head of the vibration-damping scooter, the rotation axis of the scraper brush roll is perpendicular to the first symmetrical plane, first bristles and second bristles are spirally arranged on the circumferential surface of the scraper brush roll, the first bristles and the second bristles are symmetrically arranged relative to the first symmetrical plane, the rotating direction of the first bristles is opposite to that of the second bristles, and the rotating direction is configured to enable materials on a road surface to be cleaned towards the direction far away from the first symmetrical plane.
4. The municipal engineering road surface flatness detecting robot according to claim 3, wherein the cleaning mechanism further comprises:
the rotating frame is arranged at the front end of the bottom plate, and the harrow and brush roll is rotatably arranged on one side of the rotating frame, which is far away from the bottom plate;
the worm wheel is coaxially and fixedly arranged in the middle of the harrowing brush roller;
the second motor is arranged on the rotating frame;
and the worm is arranged on the output shaft of the second motor and meshed with the worm wheel.
5. The municipal engineering road flatness detection robot according to claim 4, wherein said turret comprises:
a rotating base fixed to a front end of the base plate;
the rotating rod can rotatably penetrate through the rotating seat along the direction perpendicular to the first symmetrical plane;
the two connecting rods are arranged at two ends of the rotating rod, the extending direction of the two connecting rods is vertical to the rotating rod, and the harrow brush roll is rotatably arranged on the two rotating rods;
the mounting plate is arranged between the two connecting rods, and the second motor is arranged on the upper surface of the mounting plate;
and the shell of the electric push rod is hinged with the lower surface of the bottom plate, and the telescopic rod of the electric push rod is hinged with the lower surface of the placing plate.
6. The municipal engineering road flatness detection robot of claim 1, wherein said wheel mount comprises:
the I-shaped frame is horizontally arranged and is I-shaped when viewed from top, and the openings on two sides of the I-shaped frame are arranged along the walking direction;
the fixing pin is arranged on the bottom plate in a vertically movable mode, and the lower end of the fixing pin penetrates through the I-shaped frame;
the second spring is sleeved on the fixing pin, the upper end of the second spring abuts against the lower surface of the bottom plate, the lower end of the second spring abuts against the I-shaped frame, and the second spring is always in a compressed state;
the mount pad is articulated with the lower extreme of fixed pin, and its both sides along the walking direction set up the extension spring, the extension spring is connected on the corresponding side of I-shaped frame, the extension spring is in the state by tensile all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011637015.0A CN112813779B (en) | 2020-12-31 | 2020-12-31 | Municipal works road surface roughness detection robot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011637015.0A CN112813779B (en) | 2020-12-31 | 2020-12-31 | Municipal works road surface roughness detection robot |
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| CN112813779A CN112813779A (en) | 2021-05-18 |
| CN112813779B true CN112813779B (en) | 2022-04-01 |
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| CN202011637015.0A Active CN112813779B (en) | 2020-12-31 | 2020-12-31 | Municipal works road surface roughness detection robot |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114353713B (en) * | 2021-12-29 | 2023-09-05 | 山东省交通科学研究院 | Low-power consumption bridge surface crack detection device and method with sundry cleaning function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010044743A1 (en) * | 2010-09-08 | 2012-03-08 | Dr. Ing. Löffler Consulting und Engineering Baustoffprüfung und Umwelt GmbH | Vehicle i.e. motorized light motor car, for detecting state of road surface, has data processing device connecting camera monitoring unit and spacing measuring unit with each other and arranged in vehicle |
| CN207904727U (en) * | 2018-06-19 | 2018-09-25 | 海南方圆建设工程检测有限公司 | A kind of pavement flatness checking device |
| CN210395203U (en) * | 2019-06-27 | 2020-04-24 | 江苏宁靖盐高速公路有限公司 | Quick picking and cleaning device suitable for expressway |
| CN212103582U (en) * | 2019-12-26 | 2020-12-08 | 江苏苏科畅联科技有限公司 | Comprehensive pavement detection equipment |
| CN211772663U (en) * | 2019-12-27 | 2020-10-27 | 山东华材工程检测鉴定有限公司 | Ground flatness detection device for municipal road construction |
| CN111749093A (en) * | 2020-07-03 | 2020-10-09 | 陈希长 | Road surface flatness detection equipment |
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Effective date of registration: 20220310 Address after: 516006 room 1006, 10 / F, Chengfa building, No. 12, Huifeng East 2nd Road, Zhongkai high tech Zone, Huizhou City, Guangdong Province Applicant after: Guangdong Changgao Engineering Construction Co.,Ltd. Address before: 510000 building 2a, Yuexiu poly Aite City, YUNPU 1st Road, Huangpu District, Guangzhou City, Guangdong Province Applicant before: Sun Yuzhi |
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Effective date of registration: 20220418 Address after: 516006 room 1006, 10 / F, Chengfa building, No. 12, Huifeng East 2nd Road, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee after: Huizhou Zhongkai Construction Engineering Co.,Ltd. Address before: 516006 room 1006, 10 / F, Chengfa building, No. 12, Huifeng East 2nd Road, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee before: Guangdong Changgao Engineering Construction Co.,Ltd. |