CN202869476U - Supporting device for portable pavement profilometer - Google Patents
Supporting device for portable pavement profilometer Download PDFInfo
- Publication number
- CN202869476U CN202869476U CN 201220574596 CN201220574596U CN202869476U CN 202869476 U CN202869476 U CN 202869476U CN 201220574596 CN201220574596 CN 201220574596 CN 201220574596 U CN201220574596 U CN 201220574596U CN 202869476 U CN202869476 U CN 202869476U
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- CN
- China
- Prior art keywords
- guide rail
- supporting
- nail
- scale guide
- straight scale
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a supporting device for a portable pavement profilometer, which mainly comprises a straight scale guide rail, stand bars arranged at the two ends of the device, and an auxiliary support. The auxiliary support is arranged at the middle part of the straight scale guide rail, wherein a supporting nail and a supporting sleeve are in clearance fit with each other. Before measurement, a locking bolt is loosened first so as to enable the supporting nail to be in contact with the ground under the action of a spring, and then nuts on the stand bars at the left and right ends of the device are rotated. Meanwhile, a level bubble on the straight scale guide rail is observed to level the straight scale guide rail, and the locking bolt is screwed down to fix the supporting nail. In this way, a rigid support is additionally provided without changing a location datum reference determined by the stand bars at the two ends of the device. Therefore, the sinking of the straight scale guide rail due to the weight of a trolley and the effect of a hand pushing force is avoided, so that the measuring precision of the pavement profilometer is improved.
Description
Technical field
The utility model relates to the pavement quality detection field, is specifically related to a kind of portable road surface contourgraph fulcrum arrangement.
Background technology
Uneven road makes vehicle produce under steam running resistance and vibration, can directly affect ride performance, riding comfort and the serviceable life of vehicle when serious, so the rough detection of road pavement profile is very necessary.A kind of " portable road surface contourgraph " (patent No.: 201220157596.X) has been invented by our unit in 2012, but there is following weak point in it: as the ruler guide rail of dolly and transducer probe assembly motion benchmark and supporting, adopt the manufacturing of rectangle hollow aluminium alloy extrusions, although have easy to manufacture, the characteristics such as quality is light and antirust, but the ruler guide rail reaches 3 meters, when bringing out from ruler guide rail one, trolley is dealt into when reaching the middle part, ruler guide rail middle part must have certain sinking, and thrust varies in size, deflection is not identical yet, thereby has influence on the precision of measurement.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes the above-mentioned background technology, improves the measuring accuracy of road surface contourgraph.
The purpose of this utility model realizes with the following methods.A kind of portable road surface contourgraph fulcrum arrangement comprises ruler guide rail, two ends leg and aiding support.Its characteristics are that aiding support is arranged on the middle part of ruler guide rail, bearing sleeve in the aiding support is fixed by screws in the lower surface of ruler guide rail, supporting nail in the bearing sleeve contacts with ground under the effect of spring, adopt clearance fit between supporting nail and the bearing sleeve, lock-screw will support nail locking by ruler guide rail side and bearing sleeve, and stop screw carries out spacing by the keyway that bearing sleeve and supporting nail on to support nail.
The beneficial effects of the utility model are: the rigidity that has strengthened ruler guide rail middle part, when trolley arrives ruler guide rail middle part gradually, can prevent the sinking of the ruler guide rail that weight and hand push power because of dolly cause, thereby improve the measuring accuracy of instrument.
Description of drawings
Accompanying drawing 1 is total structure front schematic view of the present utility model.
Accompanying drawing 2 is supplemental support of the present utility model position cross-sectional view.
Embodiment
Below in conjunction with accompanying drawing enforcement of the present utility model is described further.
As shown in Figure 2, aiding support described in the utility model mainly is comprised of bearing sleeve 14, supporting nail 11, spring 15, lock-screw 10, stop screw 13.Bearing sleeve 14 in the aiding support is fixed on the lower surface of ruler guide rail 9 by screw 12, adopt clearance fit between supporting nail 11 and the bearing sleeve 14, supporting nail 11 contacts with ground under the effect of spring 15, tightening lock-screw 10 can be fixing with bearing sleeve 14 with supporting nail 11, stop screw 13 is support nail 11 to be carried out spacingly when lock-screw 10 unclamps, and prevents that support nail 11 from coming off.
As shown in Figure 1, before the measurement, first the road surface contourgraph is placed on survey on the road surface, dolly 5 is moved to an end of ruler guide rail 9, unclamp lock-screw 10; Then rotate nut 2 and nut 3 on two ends, the left and right sides leg 1, and the air level 4 of observing on the ruler guide rail 9 comes levelling ruler guide rail 9, and then tighten lock-screw 10.At this moment, aiding support becomes a fixed bearing, has increased a non-yielding prop on the basis of not destroying the definite positioning datum of two ends leg like this.During measurement, open the power switch on the digital display instrument 8, by the reset key that resets, this moment is in liquid crystal display screen display digital " 0 "; Then hold push rod 7 and promote dollies 5 and move to the other end from an end of ruler guide rail 9, displacement transducer 6 sends the road surface contour signal to digital display instrument 8, can dynamically show the instantaneous height value of road surface profile on LCDs; Stop its motion after dolly 5 arrives certain horizontal range, can be as required press at digital display instrument 8 and show that the poor key of maximum height of the profile or demonstration contour curve key check the result this moment.
Claims (1)
1. portable road surface contourgraph fulcrum arrangement, comprise ruler guide rail, two ends leg and aiding support, it is characterized in that aiding support is arranged on the middle part of ruler guide rail, bearing sleeve in the aiding support is fixed by screws in the lower surface of ruler guide rail, supporting nail in the bearing sleeve contacts with ground under the effect of spring, adopt clearance fit between supporting nail and the bearing sleeve, lock-screw will support nail locking by ruler guide rail side and bearing sleeve, and stop screw carries out spacing by the keyway that bearing sleeve and supporting nail on to support nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574596 CN202869476U (en) | 2012-11-05 | 2012-11-05 | Supporting device for portable pavement profilometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574596 CN202869476U (en) | 2012-11-05 | 2012-11-05 | Supporting device for portable pavement profilometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202869476U true CN202869476U (en) | 2013-04-10 |
Family
ID=48036190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220574596 Expired - Fee Related CN202869476U (en) | 2012-11-05 | 2012-11-05 | Supporting device for portable pavement profilometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202869476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949648A (en) * | 2015-05-21 | 2015-09-30 | 池上剑 | Plate flatness detector |
| CN105222681A (en) * | 2015-10-29 | 2016-01-06 | 石家庄钢铁有限责任公司 | A kind of can the bar stock bent degree measuring instrument of continuous coverage |
-
2012
- 2012-11-05 CN CN 201220574596 patent/CN202869476U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949648A (en) * | 2015-05-21 | 2015-09-30 | 池上剑 | Plate flatness detector |
| CN105222681A (en) * | 2015-10-29 | 2016-01-06 | 石家庄钢铁有限责任公司 | A kind of can the bar stock bent degree measuring instrument of continuous coverage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20131105 |