CN215800862U

CN215800862U - Road surface flatness detection device

Info

Publication number: CN215800862U
Application number: CN202122412464.1U
Authority: CN
Inventors: 段勇; 罗海灵; 刘洪浩
Original assignee: Chongqing Yongfeng Construction Engineering Co ltd
Current assignee: Chongqing Yongfeng Construction Engineering Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-02-11
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses a pavement evenness detection device which comprises a first moving wheel set and a second moving wheel set, wherein the first moving wheel set and the second moving wheel set are connected through a connecting cross rod, the middle part of the connecting cross rod is connected with a lifting unit, the lifting unit comprises a lifting wheel carrier, the bottom of the lifting wheel carrier is connected with a detection wheel, the top of the lifting wheel carrier is fixedly provided with a detection disc, the connecting cross rod is also fixedly provided with a detection support, the detection support is fixedly provided with a laser displacement sensor, and the laser displacement sensor is opposite to the detection disc. This road surface roughness detection device simple structure, the roughness on detection road surface that can be very swift, detection effect is good, and detection efficiency is high.

Description

Road surface flatness detection device

Technical Field

The utility model belongs to the field of pavement evenness detection, and particularly relates to a pavement evenness detection device.

Background

The flatness of the road surface is one of the main technical indexes for evaluating the quality of the road surface, and relates to the safety and the comfort of driving, the impact force on the road surface and the service life of the road surface, the uneven road surface can increase the driving resistance and enable vehicles to generate additional vibration action, and the vibration action can cause bumping driving, influence the speed and the safety of driving, and influence the stability of driving and the comfort of passengers. At the same time, the vibration also exerts an impact force on the road surface, which aggravates damage to the road surface and automobile parts and wear of tires, and increases fuel consumption. Therefore, in order to reduce the vibration impact, increase the driving speed and improve the driving comfort and safety, the road surface should maintain a certain flatness.

At present, when pavement evenness is detected, a fixed-length ruler method is generally adopted, namely a straight ruler with a specified length is placed on the surface of a pavement, a gap between the straight ruler and the pavement is directly measured to serve as an evenness index, the method is low in measuring efficiency, when detection is needed, the measuring tool is inserted into the gap to obtain data, whether the data are within a reasonable error or not is judged, and the method is troublesome in measurement and inconvenient in data reading.

SUMMERY OF THE UTILITY MODEL

In order to solve one or more technical problems in the prior art, the utility model discloses a road flatness detection device which is simple in structure, capable of detecting the flatness of a road surface very quickly and reading numerical values, good in detection effect and high in detection efficiency.

In order to achieve the purpose, the utility model provides a pavement evenness detection device which comprises a first moving wheel set and a second moving wheel set, wherein the first moving wheel set and the second moving wheel set are connected through a connecting cross rod, the middle part of the connecting cross rod is connected with a lifting unit, the lifting unit comprises a lifting wheel carrier, the bottom of the lifting wheel carrier is connected with a detection wheel, the top of the lifting wheel carrier is fixedly provided with a detection disc, the connecting cross rod is also fixedly provided with a detection bracket, the detection bracket is fixedly provided with a laser displacement sensor, and the laser displacement sensor is opposite to the detection disc.

Furthermore, a T-shaped pushing handle is fixed on the first moving wheel set.

Furthermore, the lifting unit comprises a lifting cylinder, a lifting rod is connected in the lifting cylinder in a sliding mode, a connecting disc is fixed to the bottom of the lifting rod, the clamping plate is connected with the detection wheel in a rotating mode through a wheel seat, and a lifting spring is sleeved outside the lifting rod.

Furthermore, a positioning box made of transparent materials is fixed on the detection support, the laser displacement sensor is installed in the positioning box, a power supply bin is further fixed on the detection support, and a power supply is installed in the power supply bin.

Furthermore, the connecting cross rod comprises a first rod part and a second rod part, the first rod part is fixedly connected with the lifting cylinder, a connecting rod is fixed on the side face of the lifting cylinder, and the second rod part is connected with the connecting rod through a connecting hole and fixed through a screw.

The utility model has the beneficial effects that:

firstly, the pavement evenness detection device is simple in structure, can detect the evenness of the pavement very quickly, and reads numerical values quickly, so that the detection effect is good, and the detection efficiency is high;

secondly, the lifting rod in the lifting cylinder moves downwards under the action of the lifting spring, so that the detection wheel is in close contact with the ground, the laser displacement sensor can rapidly detect the change of the distance of the detection disc, and the detection of the flatness is realized;

and thirdly, the connecting cross rod is formed by combining two parts, so the detection device can be disassembled, and is more convenient and compact in transportation and storage.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of portion A of the present invention;

fig. 3 is a side view of the present invention.

In the figure, 1, a first moving wheel group; 2. a second moving wheel set; 3. connecting the cross bars; 4. a lifting unit; 5. a lifting wheel carrier; 6. detecting a wheel; 7. detecting a disc; 8. detecting the bracket; 9. a laser displacement sensor; 10. a T-shaped push handle; 11. a lifting cylinder; 12. a lifting rod; 13. a lift spring; 14. a connecting disc; 15. a first rod portion; 16. a connecting rod; 17. a screw; 18. a positioning box; 19. a power supply bin; 20. power supply

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

referring to fig. 1 to 3, the road flatness detecting device includes a first movable wheel set 1 and a second movable wheel set 2, the first movable wheel set 1 and the second movable wheel set 2 are connected through a connecting cross bar 3, the middle of the connecting cross bar 3 is connected with a lifting unit 4 capable of moving up and down, the lifting unit 4 includes a lifting wheel frame 5, the bottom of the lifting wheel frame 5 is connected with a detecting wheel 6, the top of the lifting wheel frame 5 is fixed with a detecting disc 7, the connecting cross bar 3 is also fixed with a detecting bracket 8, the detecting bracket 8 is fixedly installed with a laser displacement sensor 9, and the laser displacement sensor 9 and the detecting disc 7 are opposite.

The using process of the utility model is as follows, when the planeness of the road surface needs to be detected, firstly, the laser displacement sensor 9 of the detecting device is zeroed on a reference plate (for example, the distance between the detecting disc 7 and the laser displacement sensor 9 is a, the display screen of the laser displacement sensor 9 is zeroed at the moment), the device is placed on the road surface after the zeroing, at the moment, if a gap exists between the detecting wheel 6 and the ground, the detecting wheel 6 moves downwards and contacts with the ground under the action of the lifting unit 4, the laser displacement sensor 9 arranged on the detecting bracket 8 can sensitively sense the distance between the detecting wheel 7 and display the distance, the detector records the value, then, the detecting device continues to move forwards, when moving for a distance, the operation is repeated to obtain a second value, and so on, the gap value of a section of road can be obtained by multiple times of detection, and sequentially judging whether each numerical value is in a qualified range, and finally obtaining the qualified rate by using the total number of the qualified data in the measured data. The laser displacement sensor 9 of the utility model can adopt a sensor with the brand of Boyi Jingke and the model of BL-100 NZ.

Further, a T-shaped pushing handle 10 is fixed on the first moving wheel set 1. In order to facilitate the movement of the detection device, a T-shaped push handle 10 is further fixed on the first moving wheel set 1.

Furthermore, the lifting unit 4 comprises a lifting cylinder 11, a lifting rod 12 is connected in the lifting cylinder 11 in a sliding manner, a connecting disc 14 is fixed at the bottom of the lifting rod 12, the clamping plate is rotatably connected with the detection wheel 6 through a wheel seat, and a lifting spring 13 is sleeved outside the lifting rod 12. Specifically, the main body of the lifting unit 4 of the present invention is a lifting cylinder 11, the lifting rod 12 is movably connected in the lifting cylinder 11, because the lifting spring 13 is connected between the connecting plate of the lifting rod 12 and the lifting cylinder 11, the detection wheel 6 will keep close contact with the ground under the action of the lifting spring 13, and the moving amount of the detection plate 7 is equal to the gap value of the road surface when in contact.

Further, a positioning box 18 made of a transparent material is fixed on the detection support 8, the laser displacement sensor 9 is installed in the positioning box 18, a power supply bin 19 is further fixed on the detection support 8, and a power supply 20 is installed in the power supply bin 19. In order to facilitate the installation of the laser sensor, a positioning box 18 is fixed on the detection support 8, the positioning box 18 is made of transparent materials, so that a detector can see numerical values displayed on the sensor conveniently, meanwhile, a power supply bin 19 is fixed on the detection support 8, and a 12-24V power supply 20 is installed in the power supply bin 19 and used for supplying power to the laser displacement sensor.

Further, the connecting cross rod 3 comprises a first rod part 15 and a second rod part, the first rod part 15 is fixedly connected with the lifting cylinder 11, a connecting rod 16 is fixed on the side face of the lifting cylinder 11, and the second rod part is connected with the connecting rod 16 through a connecting hole and fixed through a screw 17. The connecting cross rod 3 is formed by combining two parts, so the detection device can be disassembled for storage, is more convenient and compact in transportation and storage, and can be used for directly unscrewing the screw 17 and then taking down the second rod part.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a road flatness detection device, its characterized in that removes the wheelset including first removal wheelset and second, first removal wheelset and second remove and connect through a connecting horizontal pole between the wheelset, connecting the horizontal pole middle part and being connected with a lift unit, the lift unit includes a lift wheel carrier, lift wheel carrier bottom is connected with one and detects the wheel, lift wheel carrier top is fixed with one and detects the dish, still is fixed with one on connecting the horizontal pole and detects the support, fixed mounting has a laser displacement sensor on the detection support, laser displacement sensor is just right with detecting the dish.

2. The apparatus according to claim 1, wherein a T-shaped pushing handle is further fixed on the first moving wheel set.

3. The apparatus according to claim 2, wherein the lifting unit comprises a lifting cylinder, a lifting rod is slidably connected to the lifting cylinder, a connecting plate is fixed to the bottom of the lifting rod, the engaging plate is rotatably connected to the detecting wheel through a wheel seat, and a lifting spring is sleeved on the lifting rod.

4. The apparatus according to claim 3, wherein a positioning box made of transparent material is fixed on the detecting frame, the laser displacement sensor is installed in the positioning box, a power supply cabin is further fixed on the detecting frame, and a power supply is installed in the power supply cabin.

5. The apparatus according to claim 4, wherein the connection cross bar comprises a first bar portion and a second bar portion, the first bar portion is fixedly connected to the elevating cylinder, a connection bar is fixed to a side surface of the elevating cylinder, and the second bar portion is connected to the connection bar through a connection hole and fixed by a screw.