Pavement flatness measuring device

Abstract

The utility model provides a road surface evenness measuring device which comprises a ruler and a measuring unit. Clamping grooves are formed in the two sides of the ruler, and the section of each clamping groove is of a T-shaped structure. The measuring unit comprises a bracket, a pulley, a laser range finder and a handle; wherein the section of the support is of a C-shaped structure with a downward opening, and the two inner end faces of the support are each provided with a rotatable pulley; the size of the pulley is matched with that of the clamping groove, and the pulley can roll in the clamping groove; the handle is connected with the top of the support and used for pushing the measuring unit to slide along the ruler. The laser range finder is fixedly connected with the outer side wall of the support and used for measuring the distance between the laser range finder and the road surface. According to the utility model, the measuring unit is combined with the ruler, the road surface flatness is measured by using the laser range finder, the data is accurate, the measurement error of a manual feeler gauge is reduced, the device can be used for actually measuring the flatness of the finished surface of various types of engineering entities after construction, and the working efficiency can be effectively improved; and the ruler and the measuring unit can be separated and are convenient to carry.

Description

TECHNICAL FIELD

[0001] The utility model belongs to engineering entity flatness measurement technical field, concretely relates to a road surface flatness measuring device. BACKGROUND

[0002] Road surface roughness refers to the deviation value of longitudinal concave-convex amount of road surface, and it is one of important technical indexes for evaluating road surface quality, which is related to the safety and comfort of driving, the size of impact force that road surface can bear and the service life, and uneven road surface will increase the driving resistance, so that the vehicle produces additional vibration effect, which not only affects the driving speed and safety, but also affects the driving stability and passenger comfort degree.

[0003] When detecting the flatness of engineering entity, the data of flatness is usually placed on the engineering entity according to 3m ruler, the maximum gap between the 3m ruler and the engineering entity is found artificially, and the gap is measured by using a plug ruler, but the maximum gap position of flatness is easily misjudged due to the influence of human visual sense. Therefore, it is necessary to provide a more accurate road surface flatness measuring device. CONTENT OF UTILITY MODEL

[0004] The utility model provides a road surface flatness measuring device for solving the problem that the maximum gap position of flatness measured by visual plug ruler is not accurate enough in prior art.

[0005] The utility model provides a road surface flatness measuring device, which comprises a ruler and a measuring unit.

[0006] The two sides of the ruler are provided with clamping grooves, and the cross section of the clamping grooves is T-shaped structure.

[0007] The measuring unit comprises a support, a pulley, a laser range finder and a handle.

[0008] The cross section of the support is C-shaped structure with the opening facing downward, and two inner end faces are respectively provided with rotatable pulleys; the size of the pulley is matched with the clamping groove, and the pulley can roll in the clamping groove.

[0009] The handle is connected with the top of the support, and is used for pushing the measuring unit to slide along the ruler.

[0010] The laser range finder is fixedly connected with the outer side wall of the support, and is used for measuring the distance from the laser range finder to the road surface.

[0011] Compared with the prior art, the road surface flatness measuring device has the advantages that the measuring unit is combined with the ruler, the road surface flatness is measured by using the laser range finder, data is accurate, human error in the measurement by using a ruler is reduced, the device can be used to measure the flatness of the completed surface of various types of engineering entities, and the working efficiency is effectively improved.

[0012] Further, the ruler top is provided with a hinge.

[0013] Further, the device further comprises a loudspeaker installed on the support, the loudspeaker is in communication connection with the laser range finder, and is used to broadcast the measured data.

[0014] Further, the ruler top is provided with a level bubble.

[0015] Further, the ruler is 3 m long, 3 cm wide and 5 cm high. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 Fig. 1 is a schematic view of a road surface flatness measuring device in an embodiment of the present application;

[0017] Fig. 2 Fig. 1 is a schematic view of a road surface flatness measuring device in an embodiment of the present application

[0018] Fig. 3 Fig. 2 is a schematic view of a measuring unit in an embodiment of the present application;

[0019] Fig. 4 Fig. 3 is a sectional view of a ruler in an embodiment of the present application.

[0020] BRIEF DESCRIPTION OF DRAWINGS

[0021] 1, ruler; 101, clamping groove; 102, hinge; 2, measuring unit; 201, support; 202, pulley; 203, laser range finder; 204, handle. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figs. 1-4The utility model provides a kind of road surface flatness measuring device, comprising: ruler 1 and measuring unit 2;Ruler 1 both sides have clamping groove 101, the section of clamping groove 101 is T type structure;Measuring unit 2 includes support 201, pulley 202, laser range finder 203 and handle 204;Wherein, the section of support 201 is the C type structure with opening downwards, two inner end surfaces are respectively equipped with rotatable pulley 202;The size of pulley 202 is matched with clamping groove 101, and pulley 202 can roll in clamping groove 101;Handle 204 is connected with the top of support 201, for promoting measuring unit 2 to slide along ruler 1;Laser range finder 203 is fixedly connected with the outside wall of support 201, for measuring the distance from laser range finder 203 to road surface.

[0024] Further, ruler 1 top middle has hinge 102, further facilitate carrying.

[0025] In a specific embodiment, further comprising loudspeaker installed on support 201, loudspeaker is connected with laser range finder 203, for broadcasting measured data.

[0026] Further, ruler 1 top is provided with level bubble, when using, the position of bubble is observed, and adjustment is carried out to make it be located in central position, further make ruler 1 parallel to ground, avoid the height error caused by the placement of ruler 1 not flat, further increase the accuracy of measuring device.

[0027] Optionally, ruler 1 is 3m long, 3cm wide and 5cm high.

[0028] When using, measuring unit 2 is assembled with ruler 1, make pulley 202 slide into the vertical groove of clamping groove 101, place ruler 1 on the road surface to be measured, adjust by level bubble, open laser range finder 203, manually push handle 204 to make measuring unit 2 move along ruler 1, automatically identify the maximum distance between laser and measured object by laser range finder 203, complete flatness measurement, and broadcast measured data by top loudspeaker.

[0029] After use, measuring unit 2 can be disassembled with ruler 1, ruler 1 is folded and carried, and measuring unit 2 is carried by handle 204 for flatness measurement of the next road surface.

[0030] Finally, it should be noted that: the above embodiments are only used to illustrate the technical scheme of the utility model, and not to limit it;Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent substitution to part or all of the technical features;If these modifications and changes are within the scope of the claims of the utility model and its equivalent technology, they should be considered as the protection scope of the utility model.

Claims

1. A road surface evenness measuring device, characterized by, The utility model relates to a laser range finder with a ruler, and belongs to the field of surveying instruments. It comprises: a ruler and a measuring unit; the two sides of the ruler are provided with clamping grooves with T-shaped cross sections; the measuring unit comprises a support, a pulley, a laser range finder and a handle; the cross section of the support is a C-shaped structure with an opening facing downward, and two inner end faces are respectively provided with rotatable pulleys; the size of the pulley is matched with the clamping groove, and the pulley can roll in the clamping groove; the handle is connected with the top of the support and used for pushing the measuring unit to slide along the ruler; 2. The road surface roughness measuring device according to claim 1, characterized by the laser range finder is fixedly connected with the outer side wall of the support and used for measuring the distance from the laser range finder to the road surface.

3. The road surface roughness measuring device according to claim 1, characterized by The top of the ruler is provided with a hinge.

4. The road surface roughness measuring device of claim 1, wherein The utility model further comprises a loudspeaker installed on the support, which is communicatively connected with the laser range finder and used for broadcasting the measured data.

5. The road surface roughness measuring device according to any one of claims 1 to 4, characterized in that, The top of the ruler is provided with a level bubble. The length of the ruler is 3m, the width is 3cm, and the height is 5cm.

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