Tunnel pavement for vehicle lamp detection
In the evaluation of night vision lights in indoor car lights, the combination technology of multiple concrete floor modules and aggregate layers is used to solve the problem of difficult to ensure the flatness of the road surface, and the high flatness of the road surface is achieved, which is not available for large machinery. The situation provides a feasible leveling solution.
Patent Information
- Application Number
- CN202420787449.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-16
AI Technical Summary
In the prior art, it is difficult to ensure the flatness of the road surface when performing night vision lighting evaluation of the headlights indoors, especially when large-scale machinery is not possible to build the road surface.
Multiple concrete floor modules are cast in sequence, including structural layer, ground layer, aggregate layer and paint layer. The aggregate layer improves fluidity through 10:1 mixing and stirring of aggregate and primer, and on the aggregate layer Spray the paint layer to ensure high flatness of the concrete floor module.
The high flatness of the road surface is achieved, the longitudinal horizontality does not exceed 5cm and the transverse horizontality does not exceed 1cm, meeting the use needs of car light detection and providing the feasibility of flattening for the situation where large-scale machinery cannot be used to build the road surface.
Smart Images
Figure CN222434978U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle lamp detection, in particular to a tunnel pavement for vehicle lamp detection. Background Art
[0002] At present, in the design process of passenger car lights, night vision light road lighting evaluation is an important link to connect the design status of the lights with the mass production status. However, under the long-term influence of human and natural factors, many problems have arisen in the external road surface: uneven road surface, too many road obstacles, etc., and when evaluating road lighting on the external road surface, it is greatly affected by climate and traffic. Therefore, it is necessary to consider paving relevant indoor roads for night vision light road lighting evaluation. At present, there has never been any relevant road paving in the industry, and there are strict restrictions on the use of relevant machinery for floor pavement. Without the use of relevant large-scale machinery, it is difficult to accurately control the flatness of the road surface. For this reason, a new road surface is needed to ensure that its flatness can meet the use requirements of headlight detection. Utility Model Content
[0003] The utility model aims to provide a tunnel pavement for headlight detection. The aggregate layer is mixed with aggregate and primer in a ratio of 10:1 to enhance the fluidity of the aggregate so that the aggregate can be evenly laid on the ground layer. A paint layer is sprayed on the aggregate layer to improve the flatness of the concrete ground module. The overall flatness of the pavement meets the use requirements of headlight detection.
[0004] The utility model provides the following technical solution: a tunnel pavement for headlight detection, comprising a plurality of concrete ground modules cast in sequence, wherein the concrete ground modules comprise a structural layer, a ground layer, an aggregate layer and a paint layer arranged from bottom to top, wherein the aggregate layer comprises aggregate and a primer, the flatness of the concrete ground modules reaches 2mm / 2000mm, the longitudinal levelness does not exceed 5cm, the lateral levelness does not exceed 1cm, gaps are formed between adjacent concrete ground modules, the gap width is 30mm, and the depth is 10mm.
[0005] According to the above technical solution, the length of a single concrete floor module is 13.7 m, the width is 3.6 m, and the thickness is 10 cm.
[0006] According to the above technical solution, the ground layer is ground to a flatness of 2mm / 3000mm, with a longitudinal levelness not exceeding 4mm and a lateral levelness not exceeding 3mm. By ensuring the flatness of the ground layer, the overall flatness of the concrete ground module is further guaranteed.
[0007] According to the above technical solution, the aggregate layer uses SIC aggregate with a surface roughness not less than Ra5000 and an aggregate diameter of 5±2 mm. 5 mm fine aggregate can easily smooth the aggregate, ensuring the flatness of the aggregate layer surface.
[0008] According to the above technical solution, the mirror reflectivity of the paint layer does not exceed 3%, and the paint is epoxy matte paint with color RAL7037 (R119, G121, B121).
[0009] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: by laying an aggregate layer on the ground layer, the aggregate layer is mixed with aggregate and primer in a ratio of 10:1, so that the aggregate can be evenly laid on the ground layer, and a paint layer is sprayed on the aggregate layer, so that the flatness of the concrete ground module reaches 2mm / 2000mm, the longitudinal level does not exceed 5cm, and the lateral level does not exceed 1cm, further making the overall road surface flat, so that the road surface can meet the requirements of the headlight test, and at the same time, the road surface can provide the feasibility of road surface flattening for the uneven defects caused by the inability to use large machinery to build the road surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0011] Figure 1 It is a distribution diagram of the concrete floor module of the utility model;
[0012] Figure 2 It is a structural diagram of the concrete floor module of the utility model;
[0013] Figure 3 It is a grinding route map of the ground layer of the utility model;
[0014] In the figure: 1. Concrete floor module; 2. Ground layer; 3. Aggregate layer; 4. Paint layer; 5. Structural layer. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] Example
[0017] See also Figure 1 and Figure 2The utility model provides a technical solution: a tunnel pavement for headlight detection, comprising a plurality of concrete ground modules 1 cast in sequence, the concrete ground module 1 comprising a structural layer 5, a ground layer 2, an aggregate layer 3 and a paint layer 4 arranged from bottom to top, the aggregate layer 3 being laid on the ground layer 2 after fine grinding, the aggregate layer 3 comprising aggregate and primer, the aggregate and the epoxy primer being mixed in a ratio of 10:1, which enhances the fluidity of the aggregate and enables the aggregate to be evenly laid on the ground layer 2, the flatness of the concrete ground module 1 reaches 2mm / 2000mm, and the longitudinal levelness does not exceed 5c m, the lateral levelness does not exceed 1cm, and there is a gap formed between adjacent concrete floor modules 1, the gap width is 30mm, and the depth is 10mm. The concrete floor module 1 in this technical solution has a high flatness, so that the overall road surface flatness is close to the simulated design state, which provides the feasibility of road surface flattening for the uneven defects caused by the inability to use large machinery to build the road surface, solves the problem of uneven road surface in indoor night vision evaluation of headlights, ensures that the headlights are clear on the road surface, and creates a high-flatness internal road surface of the floor structure for light evaluation.
[0018] The experimental process using a ratio of 10:1 is as follows:
[0019] (1) In the 5:1 state, the aggregate is evenly distributed in the paint, the roughness of the aggregate is lost, and the material has high fluidity, large deformation after drying, and loss of flatness;
[0020] (2) The 15:1 primer is evenly distributed around the aggregate, but cannot completely cover the aggregate. There is no problem with the roughness of the aggregate, but the material is unevenly distributed and agglomerates appear during construction.
[0021] (3) After two proportioning and multiple constructions, the characteristics of the materials that need to be proportioned are summarized. The primer should be evenly wrapped on the aggregate, the aggregate should be loose, the fluidity should be poor, and the plasticity should be strong. After half a month of experiments, the final proportion of the materials was determined to be 10:1;
[0022] (4) 9:1 The aggregate was well wrapped and had good roughness, but the edge material was slightly deformed after 2 hours;
[0023] (5) 11:1 material (aggregate is well wrapped and rough, and a small amount of material will fall off when people step on it after drying) Mix the proportion for three minutes, and lay the quantitative material on the fixed unit pavement. Tracks are set up horizontally on both sides of the fixed unit pavement. The scraper moves on the track to smooth the aggregate and maintain the flatness of the original concrete ground layer. After the topcoat is applied, the defects are magnified under the light. Some aggregates are carried up by the moving scraper due to the high viscosity of the material, forming a large black shadow;
[0024] (6) Finally, the aggregate in its natural state is taken and leveled using a sprayer to allow the material to form a physical and chemical state and naturally fall on the aggregate. The same reinforcement method is repeated three times before the next area is constructed. The fixed construction period for aggregate paving is 35 days.
[0025] The length of a single concrete floor module 1 is 13.7 m, the width is 3.6 m, and the thickness is 10 cm.
[0026] The ground layer 2 is ground to a flatness of 2mm / 3000mm, with a longitudinal levelness of no more than 4mm and a lateral levelness of no more than 3mm. The ground layer 2 is ground precisely, and the grinding process is as follows: first, the original base surface is roughly measured for the entire flatness, the lowest point of the entire flatness and the lowest point of the entire levelness are found, and the cross coordinates are determined. The cross coordinates are measured to determine the final grinding depth and levelness; then a laser grinding instrument is used to grind according to the set grinding route. The grinding route is as follows: Figure 3 As shown, the first time is grinding vertically from west to east and from south to north, and the second time is grinding from north to south and from east to west; after grinding, the base surface is marked, and its flatness and levelness are measured to make the flatness 2mm / 3000mm, the longitudinal levelness does not exceed 4mm, and the lateral levelness does not exceed 3mm; after the base surface test is qualified, the ground is coated with a closed primer, and the material is a seepage material.
[0027] Aggregate layer 3 uses SIC aggregate with a surface roughness of not less than Ra5000 and a diameter of 5±2mm. Aggregate and epoxy primer are mixed in a ratio of 10:1, and the evenly mixed quantitative aggregate is laid in a fixed cell pavement. Tracks are horizontally set up on both sides of the fixed cell pavement. A scraper moves on the track to smooth the aggregate to maintain the flatness of aggregate layer 3. Aggregate and epoxy primer are mixed and stirred in a ratio of 10:1, and the primer is evenly wrapped on the aggregate, which improves the fluidity of the aggregate and further ensures the uniform distribution of the aggregate and the flatness of the aggregate layer 3 after scraping.
[0028] The mirror reflectivity of paint layer 4 does not exceed 3%. The paint used is epoxy matte paint, color RAL7037 (R119, G121, B121). Use a small spray machine to spray paint five times on each unit road surface. The spraying direction is perpendicular to the direction of the scraper. Due to the unevenness of the aggregate, when testing the light, the light is shone from one direction in the front to ensure that the color of the paint at the front 45° is uniform. When the light is turned on normally, the colors of the front, back, left and right must be consistent. Therefore, the five sprayings are 90°, 45° left, 45° right, 45° front, and 45° back to the ground respectively to ensure that the reflectivity of the paint layer in each direction of the road surface does not exceed 3%.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A tunnel pavement for vehicle light detection, characterized in that: It comprises a plurality of concrete floor modules cast in sequence, wherein the concrete floor modules comprise a structural layer, a floor layer, an aggregate layer and a paint layer arranged from bottom to top, wherein the aggregate layer comprises aggregate and a primer, and the flatness of the concrete floor modules reaches 2mm / 2000mm, the longitudinal levelness does not exceed 5cm, and the lateral levelness does not exceed 1cm. There is a gap formed between adjacent concrete floor modules, and the gap has a width of 30mm and a depth of 10mm.
2. The tunnel pavement for vehicle light detection according to claim 1, characterized in that: The length of a single concrete floor module is 13.7 m, the width is 3.6 m, and the thickness is 10 cm.
3. The tunnel pavement for vehicle light detection according to claim 1, characterized in that: The ground layer is ground to a flatness of 2mm / 3000mm, a longitudinal levelness of no more than 4mm, and a lateral levelness of no more than 3mm.
4. The tunnel pavement for vehicle light detection according to claim 3, characterized in that: The aggregate layer is made of SIC aggregate, the surface roughness is not less than Ra5000, and the aggregate diameter is 5±2mm.
5. The tunnel pavement for vehicle light detection according to claim 1, characterized in that: The mirror reflectivity of the paint layer does not exceed 3%, and the paint is epoxy matte paint with color RAL7037 (R119, G121, B121).