CN207878238U - A kind of portable loose laying planeness measuring apparatus - Google Patents
A kind of portable loose laying planeness measuring apparatus Download PDFInfo
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- CN207878238U CN207878238U CN201721794274.8U CN201721794274U CN207878238U CN 207878238 U CN207878238 U CN 207878238U CN 201721794274 U CN201721794274 U CN 201721794274U CN 207878238 U CN207878238 U CN 207878238U
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Abstract
The utility model discloses a kind of portable loose laying planeness measuring apparatus, including folded beam, folding rod, sensor mounting table and distance measuring sensor；Two fold beam end and are oppositely arranged, and end is hinged；Four folding rods are divided into two groups, are hinged in the middle part of every group of folding rod and a folded beam；The both sides in the middle part of folded beam are hinged in the middle part of every group of two folding rods；The opposite end of four folding rods is hinged on sensor mounting table, and distance measuring sensor is arranged on sensor mounting table；When the upward doubling of two folded beams, folding rod is overlapped with folded beam.Flatness described in the utility model uses sensor automatic measurement, efficient quick, accuracy height；Sensor uses triangle measurement method principle, high compared to other distance measuring sensor precision, improves measuring flatness of road surface and obtains precision.
Description
Technical field
The utility model belongs to loose laying roughness measurement field, more particularly to a kind of portable loose laying roughness measurement
Device.
Background technology
Surface evenness is the deviation of road surfaces longitudinal direction concavo-convex amount, is the weight that pavement evaluation and pavement construction are checked and accepted
Want index.Surface evenness height directly affects safety, comfort and the service life of road surface of driving.Surface evenness is low
When, vehicle pitching is easily led to, safety and the comfort of driving are influenced.Moreover, vehicle pitching exacerbates each parts of automobile
The abrasion of damage and tire.Therefore, in order to reduce vibratory impulse power, road-ability, safety are improved, road surface should have higher
Flatness.
Currently, measuring flatness of road surface is mainly the following mode, it is respectively：Continous way smoothness measuring equipment, accumulation of jolting
Instrument and 3m rulers.
Wherein continous way smoothness measuring equipment, the accumulating instrument that jolts are only applicable to measure the molding evenness of road surface after the completion of decking and rolling
Degree, 3m rulers can be not only used for measuring molding surface evenness, and can be used for measuring loose laying flatness.But 3m
Ruler method comes with some shortcomings when carrying out bituminous paving pine laying roughness measurement：
(1) 3m ruler methods measure the maximal clearance evaluation surface evenness of ruler and road surfaces, measurement result by clearance gauge
It is easily affected by human factors, generates larger measurement error.
(2) since hot-mix asphalt mixture paving material is higher, 3m rulers in use for some time, are easy to happen warped
Deformation, to influence measurement accuracy.
Utility model content
The purpose of this utility model is to provide a kind of portable loose laying planeness measuring apparatus, to solve above-mentioned ask
Topic.
The utility model uses following technical scheme to achieve the above object：
A kind of portable loose laying planeness measuring apparatus, including folded beam, folding rod, sensor mounting table and ranging pass
Sensor；Two fold beam end and are oppositely arranged, and end is hinged；Four folding rods are divided into two groups, every group of folding rod and one
It is hinged in the middle part of folded beam；The both sides in the middle part of folded beam are hinged in the middle part of every group of two folding rods；Four folding rods are opposite
End is hinged on sensor mounting table, and distance measuring sensor is arranged on sensor mounting table；When two folded beams are right upwards
When folding, folding rod is overlapped with folded beam.
Further, two folded beams are hinged；Sensor mounting table is semicircular towards offering on the side of folded beam
Slot, notch size are matched with folded beam, and when the upward doubling of folded beam, folded beam can be stuck in notch.
Further, end of the folded beam far from folded beam hinge joint is both provided with end cap, is fixedly installed on the end cap of one end
There is tensioning spring, bolt is provided on the end cap of the other end, nut is arranged on bolt；It is provided between bolt and tensioning spring
Steel wire rope.
Further, rectangular opening is offered on sensor mounting table, size and the distance measuring sensor of rectangular opening match, and
The upper end opening of rectangular opening is more than lower ending opening.
Further, sensor display screen and sensor control button are provided on distance measuring sensor；Distance measuring sensor
Lower surface one end is provided with Laser emission mouth and laser pick-off mouth, and the other end is provided with Laser emission mouth and laser pick-off mouth.
Compared with prior art, the utility model has following technique effect：
Flatness described in the utility model uses sensor automatic measurement, efficient quick, accuracy height；Sensor uses three
Horn cupping range measurement principle, it is high compared to other distance measuring sensor precision, it improves measuring flatness of road surface and obtains precision.
Reduce manual operation in this patent, overcomes the problem that accuracy of measurement is low and efficiency is low.
The utility model is simple in structure, easy to operate, and foldable mechanism so that device is easy to carry.
Description of the drawings
Fig. 1 is roughness measurement instrument front view；
Fig. 2 is roughness measurement instrument folded beam vertical view；
Fig. 3 is the schematic diagram after roughness measurement instrument folds；
Fig. 4 is sensor structure schematic diagram；
Fig. 5 is the structural schematic diagram of sensor mounting table；
In figure, 1 is folded beam；3 be folding rod；4 be sensor mounting table；5 be distance measuring sensor；6 be bolt；7 be
Tight spring；8 end caps；10 be steel wire rope；11 be sensor display screen；12 be sensor control button.
Specific implementation mode
The utility model is further illustrated below in conjunction with attached drawing：
Please refer to Fig.1-Fig. 5, a kind of portable loose laying planeness measuring apparatus, including folded beam 1, folding rod 3, sensing
Device mounting table 4 and distance measuring sensor 5；Two 1 ends of folded beam are oppositely arranged, and end is hinged；Four folding rods 3 are divided into
Two groups, every group of folding rod 3 and 1 middle part of folded beam are hinged；The middle part of every group of two folding rods 3 is hinged in folded beam 1
The both sides in portion；The opposite end of four folding rods 3 is hinged on sensor mounting table 4, and the setting of distance measuring sensor 5 is sensing
On device mounting table 4；When two 1 upward doublings of folded beam, folding rod 3 is overlapped with folded beam 1.
Two folded beams 1 are hinged；Sensor mounting table 4 is towards offering semicircular slot, notch on the side of folded beam
Size is matched with folded beam 1, and when 1 upward doubling of folded beam, folded beam 1 can be stuck in notch.
End of the folded beam 1 far from folded beam hinge joint is both provided with end cap 8, and tensioning is fixedly installed on one end end cap 8
Spring 7 is provided with bolt 6 on the end cap 8 of the other end, nut is arranged on bolt 6；It is provided between bolt 6 and tensioning spring 7
Steel wire rope 10.
Rectangular opening is offered on sensor mounting table 4, size and the distance measuring sensor 5 of rectangular opening match, and rectangular opening
Upper end opening be more than lower ending opening.
Sensor display screen 11 and sensor control button 12 are provided on distance measuring sensor 5；The following table of distance measuring sensor 5
Face one end is provided with Laser emission mouth and laser pick-off mouth, and the other end is provided with Laser emission mouth and laser pick-off mouth.
The measurement method based on portable loose laying planeness measuring apparatus, includes the following steps：
1) measuring instrument in folded state is unfolded, rotates the nut of bolt 6 so that steel wire rope 10 stretches；
2) and then distance measuring sensor 5 is placed, the infrared receiver mouth transmitting mouth down of distance measuring sensor 5 is inserted in rectangular opening
In, section to be measured is then selected, the measuring instrument of expansion is placed on and is measured on section, distance measuring sensor is opened and reads
dA,dB；
Then：
di=| dA-dB|
The distance of steel wire rope is longitudinally arrived for the road surface of a certain measuring point；
3) after measuring n times, difference d can be obtained1,d2…dn, the loose laying flatness standard deviation in certain section is calculated as follows：
In formula：σi- pine laying flatness standard deviation, mm；
N-sampling number；
The average value of-n road surface longitudinal direction position height difference, unit mm.
Claims (5)
1. a kind of portable loose laying planeness measuring apparatus, which is characterized in that including folded beam (1), folding rod (3), sensing
Device mounting table (4) and distance measuring sensor (5)；Two folded beam (1) ends are oppositely arranged, and end is hinged；Four folding rods (3)
Two groups are divided into, is hinged in the middle part of every group of folding rod (3) and a folded beam (1)；The middle part of every group of two folding rods (3) is hinged
Both sides in the middle part of folded beam (1)；Four opposite ends of folding rod (3) are hinged on sensor mounting table (4), and ranging passes
Sensor (5) is arranged on sensor mounting table (4)；When two upward doublings of folded beam (1), folding rod (3) and folded beam (1)
It overlaps.
2. the portable loose laying planeness measuring apparatus of one kind according to claim 1, which is characterized in that two folded beams
(1) hinged；Sensor mounting table (4) is towards offering semicircular slot, notch size and folded beam (1) on the side of folded beam
Matching, when folded beam (1) upward doubling, folded beam (1) can be stuck in notch.
3. the portable loose laying planeness measuring apparatus of one kind according to claim 1, which is characterized in that folded beam (1)
End far from folded beam hinge joint is both provided with end cap (8), and tensioning spring (7) is fixedly installed on one end end cap (8), another
Bolt (6) is provided on the end cap (8) at end, bolt is arranged with nut on (6)；It is provided between bolt (6) and tensioning spring (7)
Steel wire rope (10).
4. the portable loose laying planeness measuring apparatus of one kind according to claim 1, which is characterized in that sensor is placed
Rectangular opening is offered on platform (4), size and the distance measuring sensor (5) of rectangular opening match, and the upper end opening of rectangular opening is more than
Lower ending opening.
5. the portable loose laying planeness measuring apparatus of one kind according to claim 4, which is characterized in that distance measuring sensor
(5) sensor display screen (11) and sensor control button (12) are provided on；Lower surface one end of distance measuring sensor (5) is arranged
There are Laser emission mouth and laser pick-off mouth, the other end to be provided with Laser emission mouth and laser pick-off mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721794274.8U CN207878238U (en) | 2017-12-20 | 2017-12-20 | A kind of portable loose laying planeness measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721794274.8U CN207878238U (en) | 2017-12-20 | 2017-12-20 | A kind of portable loose laying planeness measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207878238U true CN207878238U (en) | 2018-09-18 |
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ID=63502731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721794274.8U Active CN207878238U (en) | 2017-12-20 | 2017-12-20 | A kind of portable loose laying planeness measuring apparatus |
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| CN (1) | CN207878238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151682A (en) * | 2017-12-20 | 2018-06-12 | 长安大学 | A kind of portable loose laying planeness measuring apparatus and measuring method |
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2017
- 2017-12-20 CN CN201721794274.8U patent/CN207878238U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151682A (en) * | 2017-12-20 | 2018-06-12 | 长安大学 | A kind of portable loose laying planeness measuring apparatus and measuring method |
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