CN210341576U - On-spot testing arrangement of road surface engineering - Google Patents
On-spot testing arrangement of road surface engineering Download PDFInfo
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- CN210341576U CN210341576U CN201920805541.XU CN201920805541U CN210341576U CN 210341576 U CN210341576 U CN 210341576U CN 201920805541 U CN201920805541 U CN 201920805541U CN 210341576 U CN210341576 U CN 210341576U
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- road surface
- bracing piece
- position sleeve
- crossbeam
- field test
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Abstract
The utility model discloses a road surface engineering field test device, including two vertical stands and a horizontally crossbeam, the both ends of crossbeam are fixed on the stand, and the cover has sliding sleeve on the crossbeam, sliding sleeve's lower surface is provided with the position sleeve, the bottom of position sleeve is provided with pressure sensor, the inside of position sleeve is provided with vertical bracing piece, bracing piece and position sleeve sliding fit, be provided with compression spring between the upper end of bracing piece and the pressure sensor, the lower extreme of bracing piece stretches out the position sleeve and is provided with the gyro wheel. The device has the advantages of simple structure, low implementation cost, no need of complex equipment and power supply, convenient carrying, field test, convenient use and application, and can be used for detecting the flatness of various pavements.
Description
Technical Field
The utility model belongs to construction test equipment field, especially a road surface engineering field test device.
Background
The pavement evenness reflects the deviation degree between the pavement surface and a designed geometric plane, and the excellent evenness is not only an important guarantee that vehicles run at the same speed, comfortably and safely, but also has obvious influence on the pavement maintenance cost and the service life. Therefore, after the pavement construction is completed, the pavement is generally required to be subjected to flatness test so as to ensure that the flatness meets the design requirements.
The existing flatness test generally adopts a laser path surface flatness tester or a vehicle-mounted jolt-accumulating instrument, and the detection precision of the detection equipment is high, but the equipment cost is high and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, convenient to use's road surface engineering field test device.
The purpose of the utility model is realized like this: the utility model provides a road surface engineering field test device, includes two vertical stands and a horizontally crossbeam, the both ends of crossbeam are fixed on the stand, and the cover has a sliding sleeve on the crossbeam, sliding sleeve's lower surface is provided with the position sleeve, the bottom of position sleeve is provided with pressure sensor, the inside of position sleeve is provided with vertical bracing piece, bracing piece and position sleeve sliding fit, be provided with compression spring between the upper end of bracing piece and the pressure sensor, the lower extreme of bracing piece stretches out the position sleeve and is provided with the gyro wheel.
Furthermore, the stand is a screw rod, a balance weight is arranged at the bottom of the screw rod, two ends of the cross beam are sleeved on the screw rod, and fastening nuts are arranged on the screw rod at the upper surface and the lower surface of the cross beam.
Furthermore, the upper surface of the balance weight is provided with a jack, and the lower end of the screw rod is inserted into the jack.
Furthermore, the cross beam is formed by splicing a plurality of sections of connecting rods.
Furthermore, the connecting rods are hollow rectangular rods, the inner wall of one end of each connecting rod is provided with a connecting plate, the side wall of the other end of each connecting rod is provided with a positioning hole, and the connecting plates of the connecting rods are inserted into the inner holes of the adjacent connecting rods and are connected with the adjacent connecting rods through screws penetrating through the positioning holes; the connecting rods at the two ends of the cross beam are provided with through holes, and the stand columns are positioned in the through holes.
The utility model has the advantages that: this device simple structure, the implementation cost is low, in use, fix the stand on the road surface, the gyro wheel is located the road surface, promote sliding sleeve and remove the other end from the one end of crossbeam, the gyro wheel rolls on the road surface, along with the fluctuation on road surface, the gyro wheel drives the bracing piece and fluctuates from top to bottom, the bracing piece then promotes compression spring and constantly stretches out and draws back, compression spring's flexible length and elasticity are the proportion, pressure sensor detects compression spring's elasticity, can calculate compression spring's flexible length according to the size of elasticity, and then calculate the fluctuation size on road surface, the roughness on road surface has been calculated promptly. The device does not need complex equipment and power supply, is convenient to carry, can be used for field test, is more convenient to use, and can be used for detecting the flatness of various pavements.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic top cross-sectional view of a connecting rod.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 and fig. 2, the utility model discloses a road surface engineering field test device, including two vertical stands 1 and a horizontally crossbeam 2, the both ends of crossbeam 2 are fixed on stand 1, and the cover has sliding sleeve 3 on crossbeam 2, and sliding sleeve 3 and 2 sliding fit of crossbeam make sliding sleeve 3 can slide along crossbeam 2. The lower surface of sliding sleeve 3 is provided with position sleeve 4, and position sleeve 4 welds the lower surface at sliding sleeve 3. The bottom of position sleeve 4 is provided with pressure sensor 5, the inside of position sleeve 4 is provided with vertical bracing piece 6, bracing piece 6 and position sleeve 4 sliding fit, be provided with compression spring 7 between the upper end of bracing piece 6 and pressure sensor 5, the lower extreme of bracing piece 6 stretches out position sleeve 4 and is provided with gyro wheel 8. The compression spring 7 is always in a compressed state, the pressure sensor 5 can detect the pressure of the compression spring 7 and output a pressure waveform, and the length change of the compression spring 7 can be calculated according to the pressure change of the compression spring 7.
During the use, fix stand 1 on the road surface, gyro wheel 8 compresses tightly the road surface under compression spring 7's effect, promote sliding sleeve 3 and remove the other end from the one end of crossbeam 2, gyro wheel 8 rolls on the road surface, gyro wheel 8 fluctuates along with the fluctuation on road surface, and drive bracing piece 6 and fluctuate, bracing piece 6 then promotes compression spring 7 and constantly stretches out and draws back, compression spring 7's flexible length and elasticity are the proportion, pressure sensor 5 detects compression spring 7's elasticity, can calculate compression spring 7's flexible length according to the size of elasticity, and then calculate the fluctuation size on road surface, the roughness on road surface has been calculated promptly. The device does not need complex equipment and power supply, is convenient to carry, can be used for field test, is more convenient to use, and can be used for detecting the flatness of various pavements.
In order to adjust the height of the cross beam 2 conveniently, the upright column 1 is a screw rod, a balance weight 9 is arranged at the bottom of the screw rod, two ends of the cross beam 2 are sleeved on the screw rod, and fastening nuts 10 are arranged on the screw rod at the upper surface and the lower surface of the cross beam 2. When the height of the cross beam 2 is adjusted, the fastening nuts 10 on the two screw rods are rotated. The bottom of lead screw has set up counter weight 9, and counter weight 9 can adopt the iron plate, guarantees the stability of stand 1 when detecting.
In order to facilitate the device to be disassembled into a plurality of components with smaller volume and weight so as to be convenient to carry, the upper surface of the balance weight 9 is provided with a jack, the lower end of the screw rod is inserted into the jack, when the device is used, the lower end of the screw rod is inserted into the jack, and when the device is carried, the screw rod is pulled out. In addition, the cross beam 2 is formed by splicing a plurality of sections of connecting rods. When the portable detachable beam is carried, the beam 2 can be disassembled into a plurality of sections, and then the assembled beam is assembled on site when in use. Firstly, conveniently carry, secondly can adjust the length of crossbeam 2 through the quantity that increases or reduce the connecting rod to change the test distance on road surface.
Specifically, the connecting rod is a hollow rectangular rod and can be made of rectangular steel, a connecting plate 11 is arranged on the inner wall of one end of the connecting rod, the connecting plate 11 can be welded on the inner wall of one end of the connecting rod, a positioning hole is formed in the side wall of the other end of the connecting rod, and the connecting plate 11 of the connecting rod is inserted into an inner hole of an adjacent connecting rod and is connected with the adjacent connecting rod through a screw penetrating through the positioning hole; the connecting rods at the two ends of the cross beam 2 are provided with through holes, and the upright posts 1 are positioned in the through holes. After the connection, the connecting plate 11 is positioned in the inner hole of the connecting rod, the outer wall of the connecting rod is smooth, the sliding of the sliding sleeve 3 is not influenced, and the disassembly and the assembly are convenient.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a road surface engineering field test device which characterized in that: including two vertical stands (1) and a horizontally crossbeam (2), the both ends of crossbeam (2) are fixed on stand (1), and the cover has sliding sleeve (3) on crossbeam (2), the lower surface of sliding sleeve (3) is provided with position sleeve (4), the bottom of position sleeve (4) is provided with pressure sensor (5), the inside of position sleeve (4) is provided with vertical bracing piece (6), bracing piece (6) and position sleeve (4) sliding fit, be provided with compression spring (7) between the upper end of bracing piece (6) and pressure sensor (5), the lower extreme of bracing piece (6) stretches out position sleeve (4) and is provided with gyro wheel (8).
2. A road surface engineering field test device according to claim 1, characterized in that: the upright post (1) is a screw rod, a balance weight (9) is arranged at the bottom of the screw rod, two ends of the cross beam (2) are sleeved on the screw rod, and fastening nuts (10) are arranged on the upper surface and the lower surface of the cross beam (2).
3. A road surface engineering field test device according to claim 2, characterized in that: the upper surface of the balance weight (9) is provided with a jack, and the lower end of the screw rod is inserted into the jack.
4. A road surface engineering field test device according to claim 2 or 3, characterized in that: the cross beam (2) is formed by splicing a plurality of sections of connecting rods.
5. A road surface engineering field test device according to claim 4, characterized in that: the connecting rods are hollow rectangular rods, the inner wall of one end of each connecting rod is provided with a connecting plate (11), the side wall of the other end of each connecting rod is provided with a positioning hole, and the connecting plates (11) of the connecting rods are inserted into inner holes of adjacent connecting rods and are connected with the adjacent connecting rods through screws penetrating through the positioning holes; through holes are formed in the connecting rods positioned at the two ends of the cross beam (2), and the upright posts (1) are positioned in the through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920805541.XU CN210341576U (en) | 2019-05-30 | 2019-05-30 | On-spot testing arrangement of road surface engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920805541.XU CN210341576U (en) | 2019-05-30 | 2019-05-30 | On-spot testing arrangement of road surface engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210341576U true CN210341576U (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920805541.XU Active CN210341576U (en) | 2019-05-30 | 2019-05-30 | On-spot testing arrangement of road surface engineering |
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| Country | Link |
|---|---|
| CN (1) | CN210341576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112224116A (en) * | 2020-11-11 | 2021-01-15 | 岑土秀 | Bridge detects machine |
-
2019
- 2019-05-30 CN CN201920805541.XU patent/CN210341576U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112224116A (en) * | 2020-11-11 | 2021-01-15 | 岑土秀 | Bridge detects machine |
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