A luminous traffic surface marking component

Abstract

This invention discloses a luminescent traffic ground marking component, comprising a protective layer, a luminescent module located within the protective layer, and a steel reinforcement structure interwoven around the luminescent module. The luminescent module includes a light guide layer formed of a light-guiding material, a heat insulation layer formed of a heat-insulating material, and a luminescent circuit board located between the light guide layer and the heat insulation layer. The light guide layer has matrix-arranged light guide columns on the side away from the heat insulation layer, and the luminescent circuit board has luminescent LEDs corresponding to each light guide column. The light guide columns of the luminescent module extend beyond the protective layer, and the end faces of the light guide columns and the corresponding end faces of the protective layer are on the same horizontal plane. The protective layer is formed by curing UHPC composite material. When this component is installed at the location of existing zebra crossings or ground traffic markings, it not only creates the color and shape of zebra crossings and ground traffic markings, but also actively illuminates the ground traffic signals through the luminescent matrix in low-visibility conditions such as at night, further enhancing the surface traffic signals. Furthermore, the component itself has good compressive and tensile strength.

Description

Technical Field

[0001] This invention relates to a light-emitting traffic surface marking component. Background Technology

[0002] In recent years, with the continuous growth of the number of drivers, motor vehicles, and road mileage, the volume of road traffic has become enormous, thus requiring various adjustments to traffic safety management. Urban intersections are frequent locations for traffic accidents, especially at night and in conditions of poor visibility such as rain and fog. Therefore, installing luminous bricks or other lighting products at zebra crossings can solve the problem of recognizing ground traffic signs at night and in poor visibility conditions such as rain and fog. Currently, the principle of ground-illuminated zebra crossings is to place LED panels or lighting devices under the road surface (the device material itself is a light-transmitting resin material). However, these ground-illuminated components are susceptible to corrosion by ultraviolet rays. Summary of the Invention

[0003] Purpose of the invention: The purpose of this invention is to provide a luminous traffic ground marking component. When the component of this invention is laid at the location of an existing zebra crossing or ground traffic marking, it can not only form a luminous component in the shape of a zebra crossing or ground traffic marking, but also has good compressive strength (load-bearing capacity), tensile strength, waterproof performance and heat insulation performance.

[0004] Technical Solution: The luminous traffic ground marking component of the present invention comprises a protective layer, a luminous module located within the protective layer, and a steel reinforcement structure interwoven around the luminous module. The luminous module includes a light guide layer formed of a light-guiding material, a heat insulation layer formed of a heat insulation material, and a luminous circuit board located between the light guide layer and the heat insulation layer. The light guide layer has matrix-arranged light guide columns on the side away from the heat insulation layer, and the luminous circuit board has luminous beads corresponding to the light guide columns. The light guide columns of the luminous module extend out of the protective layer, and the end face of the light guide column is on the same horizontal plane as the corresponding end face of the protective layer. The protective layer is formed by curing UHPC composite material.

[0005] The light-emitting circuit board is connected to an external power source via wires extending from the protective layer.

[0006] The heat insulation layer has an embedded groove on the side away from the light guide layer. The groove can increase the contact area between the light-emitting module and the protective layer, thereby enhancing the adhesion between the heat insulation layer and the external protective material.

[0007] The heat insulation layer has multiple support pillars on the side near the light guide layer, and the light-emitting circuit board has pre-drilled holes for each support pillar. The light guide layer has matrix-arranged light guide pillars on the side away from the heat insulation layer, and the light guide layer has a cavity structure with an open top on the side near the heat insulation layer. The height of the support pillars is the same as the thickness of the corresponding side of the cavity structure. The side of the light guide layer with the cavity structure covers the side of the heat insulation layer with the support pillars, assembling into a light-emitting module. By forming a cavity structure in conjunction with the heat insulation structure, the heat insulation effect of the light-emitting module can be effectively improved, while the support pillars in the cavity structure can maintain the stability of the entire light-emitting module structure.

[0008] The light guide layer has multiple pairs of equally spaced groove structures I on its opposite sides along the X-axis and Y-axis. The heat insulation layer has groove structures II that correspond one-to-one with the groove structures I. After the light guide layer and the heat insulation layer are assembled together, each pair of groove structures is wrapped with a steel reinforcement structure along the X-axis and along the Y-axis.

[0009] The light guide material is acrylic, PC, ABS or PV light-transmitting material with a light transmittance of 50-100%.

[0010] The heat insulation material is acrylic, PC, ABS or PV heat insulation material.

[0011] The steel reinforcement structure is made of threaded steel with a diameter of 6-8mm, and the spacing between adjacent groove structures is 40-80mm, forming a mesh steel cage outside the light-emitting module, which serves to enhance the toughness and strength of the light-emitting module.

[0012] The UHPC composite material used to prepare the protective layer is composed of the following components in parts by mass: 30-50 parts cement; 3-5 parts slag powder; 1-3 parts volcanic ash; 5-10 parts fine aggregate; 0.5-2 parts water-reducing agent; 5-10 parts epoxy resin mortar; 4-6 parts polyvinyl alcohol fiber; and 1-4 parts polyethylene fiber.

[0013] The cement is a composite silicate rock cement with clinker >50 and <80; the strength grade is 52.5, and the compressive strength (MPa) is ≥21.0 at 3d and ≥52.5 at 28d. The non-reactive mineral admixtures (slag powder and volcanic ash) do not possess chemical reactivity, but they can optimize the particle size distribution of the cementitious materials, achieving a high degree of compact packing. The slag powder density (g / cm³) is [not specified]. 3 : Greater than or equal to 2.8; specific surface area (m²) 2 / kg): ≥400; Activity coefficient (%): 7d ≥75, 28d ≥95; Flow ratio (%): ≥95; Moisture content (mass fraction %) ≤1.0; Sulfur dioxide (mass fraction %) ≤4.0; Vitreous content (mass fraction %) ≥85; Chloride ion (mass fraction %) ≤0.06; Fine aggregate is industrial grade quartz sand with a fineness modulus of 2.5~2.3. Polyvinyl alcohol fiber (PVA) with a tensile strength greater than 2000MPa, a length of 10~20mm, and a diameter of 0.1~0.25mm.

[0014] The method for preparing the above-mentioned luminous traffic surface marking component includes the following steps:

[0015] (1) The light-emitting circuit board is fitted onto the support column of the heat insulation layer through the reserved hole of the support column, and the light guide layer is covered on the heat insulation layer. After the light guide layer and the heat insulation layer are spliced ​​together, the wires connected to the light-emitting circuit board extend out of the light-emitting module from the reserved hole at the bottom of the heat insulation layer structure; along the X-axis direction, a steel bar structure is wrapped inside each pair of groove structures, and along the Y-axis direction, a steel bar structure is wrapped inside each pair of groove structures; a mesh steel bar cage is formed outside the light-emitting module.

[0016] (2) In a dry mixer (do not pre-wet), add the cement, slag powder, and volcanic ash of the formula and mix for 2 minutes; then stop the machine, add the quartz sand (fine aggregate) of the formula and mix for 1 minute; while keeping the mixer running, add the water-reducing agent and epoxy resin mortar of the formula; mix until uniform (about 4 minutes); stop the machine, add the polyvinyl alcohol fiber and polyethylene fiber of the formula, and mix for 30 seconds. The mixer is equipped with a vacuum system. During the mixing stage after adding the epoxy resin mortar, the mixer is vacuumed to remove air bubbles and improve the density of the particle packing. The vacuum degassing method can reduce the air bubble volume of the UHPC mixture to less than 1%; the rotation speed is 30~60 rpm.

[0017] (3) Place the prepared light-emitting module upside down in the shaping mold on the vibration platform. The top of the shaping mold is open and the side is provided with wire pre-reserved holes. The wires connected to the light-emitting circuit board extend out of the shaping mold through the wire pre-reserved holes. The volume of the inner cavity of the shaping mold is consistent with the size of the component to be formed. Pour UHPC composite material into the gap between the light-emitting module and the shaping mold, and at the same time turn on the vibration platform (vibration time is 10s~15s). The air in the shaping mold is shaken by the vibration platform to form bubbles and is discharged until the shaping mold is filled and no bubbles are discharged. Stop pouring UHPC composite material and complete the casting.

[0018] (4) After pouring, the product will solidify naturally for about 6 to 24 hours. After removing the mold, the product will be cured at 20 to 25°C and 90% or more humidity for 7 to 28 days. After curing, the luminous traffic ground marking component will be obtained and used for subsequent ground installation.

[0019] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: When the components of the present invention are laid at the location of existing zebra crossings or ground traffic signs, they can not only form zebra crossings or ground traffic signs, but also actively emit light. Moreover, they have good compressive strength (bearing capacity) and tensile strength. The compressive strength of the component is greater than 80MPa, the tensile strength is greater than 5MPa, and the initial crack resistance is greater than 4MPa. After curing, the carbonization depth is no greater than 15mm, the impermeability grade is no less than P12, and the frost resistance grade is no less than F250. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the component of the present invention;

[0021] Figure 2 Here is a schematic diagram of the structure of the light-emitting module (I);

[0022] Figure 3 Schematic diagram II of the light-emitting module structure;

[0023] Figure 4 This is an exploded view of the light-emitting module;

[0024] Figure 5 Here is a schematic diagram of the light guide layer (I);

[0025] Figure 6 Schematic diagram II of the light guide layer structure;

[0026] Figure 7 This is a schematic diagram of the insulation layer structure;

[0027] Figure 8 This is a cross-sectional view of the component of the present invention. Detailed Implementation

[0028] like Figures 1-8As shown, the luminous traffic ground marking component of the present invention comprises a protective layer 10, a luminous module located within the protective layer 10, and a steel reinforcement structure 8 interlaced around the luminous module. The luminous module includes a light guide layer 2 formed of a light-guiding material, a heat insulation layer 3 formed of a heat insulation material, and a luminous circuit board 6 located between the light guide layer 2 and the heat insulation layer 3. The light guide layer 2 has matrix-arranged light guide columns 1 on the side away from the heat insulation layer 3, and the luminous circuit board 6 has luminous beads 5 corresponding one-to-one with the light guide columns 1. The light guide columns 1 of the luminous module extend out of the protective layer 10, and the end face of the light guide column 1 is on the same horizontal plane as the corresponding end face of the protective layer 10. The protective layer 10 is formed by curing UHPC composite material. The luminous circuit board 6 is connected to an external power source through wires extending out of the protective layer 10.

[0029] The heat insulation layer 3 has an embedded groove 9 (not hollow) on the side away from the light guide layer 2. The groove 9 can strengthen the contact surface between the light-emitting module and the protective layer composite material and increase the adhesion between the two. The heat insulation layer 3 has multiple support pillars 4 on the side near the light guide layer 2. The light-emitting circuit board 6 has support pillar reserved holes 7 corresponding to the support pillars 4. The light guide layer 2 has matrix-arranged light guide pillars 1 on the side away from the heat insulation layer 3. The light guide layer 2 has a cavity structure 14 with an open top on the side near the heat insulation layer 3. The height of the support pillars 4 is the same as the thickness of the corresponding side of the cavity structure. The side of the light guide layer 2 with the cavity structure 14 covers the side of the heat insulation layer 3 with the support pillars 4, and the light-emitting module is assembled. The component of this invention has a three-layer structure. The light-emitting circuit board 6 is potted to provide a certain degree of waterproofing without affecting light emission. The light guide layer 2 and the heat insulation layer 3 are glued together to form a relatively sealed cavity, which also provides good waterproofing and heat insulation. The outer protective layer is made of UHPC composite material, which, after complete curing, has high compressive and tensile strength and a water resistance rating of not less than P12. By forming a relatively sealed cavity structure 14 and using specific heat insulation materials, the heat insulation efficiency of the light-emitting module can be effectively improved, extending its service life. At the same time, the support columns 4 in the cavity structure 14 can maintain the stability of the entire light-emitting module structure.

[0030] The light guide layer 2 has multiple pairs of equally spaced groove structures I13 on its opposite sides along the X-axis and Y-axis. The heat insulation layer 3 has groove structures II15 that correspond one-to-one with the groove structures I13. After the light guide layer 2 and the heat insulation layer 3 are assembled together, each pair of groove structures along the X-axis is wrapped with a steel reinforcement structure 8, and each pair of groove structures along the Y-axis is wrapped with a steel reinforcement structure 8.

[0031] The light guide material is made of acrylic, PC, ABS, PV, etc., with a light transmittance of 50-100%. The diameter of the light guide column is 4-10mm. The dimensions of the component of this invention are: width 100-400mm, length 200-1000mm, and thickness 30-120mm.

[0032] Among them, the steel reinforcement structure 8 itself is a threaded steel bar with a diameter of 6~8mm, and the spacing between adjacent groove structures is 40~80mm, forming a mesh steel cage outside the light-emitting module, which serves to enhance the toughness and strength of the light-emitting module.

[0033] The UHPC composite material used to prepare the protective layer consists of the following components in parts by weight: 30-50 parts cement; 3-5 parts slag powder; 1-3 parts volcanic ash; 5-10 parts fine aggregate; 0.5-2 parts water-reducing agent; 5-10 parts epoxy resin mortar; 4-6 parts polyvinyl alcohol fiber (used to enhance the toughness of the UHPC composite material); and 1-4 parts polyethylene fiber.

[0034] The cement is a composite silicate rock cement with clinker >50 and <80; the strength grade is 52.5, and the compressive strength (MPa) is ≥21.0 at 3d and ≥52.5 at 28d. The non-reactive mineral admixtures (slag powder and volcanic ash) do not possess chemical reactivity, but they can optimize the particle size distribution of the cementitious materials, achieving a high degree of compact packing. The slag powder density (g / cm³) is [not specified]. 3 : Greater than or equal to 2.8; specific surface area (m²) 2 / kg): ≥400; Activity coefficient (%): 7d ≥75, 28d ≥95; Flow ratio (%): ≥95; Moisture content (mass fraction %) ≤1.0; Sulfur dioxide (mass fraction %) ≤4.0; Vitreous content (mass fraction %) ≥85; Chloride ion (mass fraction %) ≤0.06; Fine aggregate is industrial grade quartz sand with a fineness modulus of 2.5~2.3. Polyvinyl alcohol fiber (PVA) with a tensile strength greater than 2000MPa, a length of 10~20mm, and a diameter of 0.1~0.25mm.

[0035] The preparation method of the above-mentioned luminous traffic ground marking component is as follows: (1) The luminous circuit board is sleeved on the support column of the heat insulation layer through the reserved hole of the support column, and the light guide layer is covered on the heat insulation layer. After the light guide layer and the heat insulation layer are spliced ​​together, the wire connected to the luminous circuit board extends out of the luminous module from the reserved hole at the bottom of the heat insulation layer structure; along the X-axis direction, a steel bar structure is wrapped in each pair of groove structures, and along the Y-axis direction, a steel bar structure is wrapped in each pair of groove structures; a mesh steel bar cage is formed outside the luminous module.

[0036] (2) In a dry mixer (do not pre-wet), add the cement, slag powder, and volcanic ash of the formula and mix for 2 minutes; then stop the machine, add the quartz sand (fine aggregate) of the formula and mix for 1 minute; while keeping the mixer running, add the water-reducing agent and epoxy resin mortar of the formula; mix until uniform (about 4 minutes); stop the machine, add the polyvinyl alcohol fiber and polyethylene fiber of the formula, and mix for 30 seconds. The mixer is equipped with a vacuum system. During the mixing stage after adding the epoxy resin mortar, the mixer is vacuumed to remove air bubbles and improve the density of the particle packing. The vacuum degassing method can reduce the air bubble volume of the UHPC mixture to less than 1%; the rotation speed is 30~60 rpm.

[0037] (3) Place the prepared light-emitting module upside down in the shaping mold on the vibration platform. The top of the shaping mold is open and the side is provided with wire pre-reserved holes. The wires connected to the light-emitting circuit board extend out of the shaping mold through the wire pre-reserved holes. The volume of the inner cavity of the shaping mold is consistent with the size of the component to be formed. Pour UHPC composite material into the gap between the light-emitting module and the shaping mold, and at the same time turn on the vibration platform (vibration time is 10s~15s). The air in the shaping mold is shaken by the vibration platform to form bubbles and is discharged until the shaping mold is filled and no bubbles are discharged. Stop pouring UHPC composite material and complete the casting.

[0038] (4) After pouring, the product will solidify naturally for about 6 to 24 hours. After removing the mold, the product will be cured at 20 to 25°C and 90% or more humidity for 7 to 28 days. After curing, the luminous traffic ground marking component will be obtained and used for subsequent ground installation.

Claims

1. A lighted traffic pavement marker assembly characterized by: The application relates to a light-emitting protective layer, which is composed of a protective layer (10), a light-emitting module located in the protective layer (10) and a steel bar structure (8) which is cross-wound outside the light-emitting module; the light-emitting module comprises a light guide layer (2) formed by light guide material, a heat insulation layer (3) formed by heat insulation material and a light-emitting circuit board (6) located between the light guide layer (2) and the heat insulation layer (3); the light guide layer (2) is provided with matrix-arranged light guide lamp columns (1) on the side far from the heat insulation layer (3), and the light-emitting circuit board (6) is provided with light-emitting lamp beads (5) corresponding to the light guide lamp columns (1) one by one; the protective layer (10) is formed into a shell by UHPC composite material solidification; the light guide lamp columns (1) of the light-emitting module extend out of the protective layer (10) and the end faces of the light guide lamp columns (1) and the end faces of the corresponding protective layer (10) shells are located on the same horizontal plane. The heat insulation layer (3) is provided with a plurality of support columns (4) on the side close to the light guide layer (2), the light-emitting circuit board (6) is provided with support column reserved holes (7) corresponding to the support columns (4) one by one, the light guide layer (2) is opened on the side close to the heat insulation layer (3), namely the light guide layer (2) is a cavity structure (14) opened on the side, the height of the support column (4) is consistent with the thickness of the corresponding side edge of the cavity structure, and the side, where the light guide layer (2) is provided with the cavity structure (14), is covered on the side, where the heat insulation layer (3) is provided with the support column (4), to assemble and splice into the light-emitting module. The light guide layer (2) is provided with a plurality of pairs of equidistantly-arranged groove structures I on the opposite sides along the X-axis direction and the Y-axis direction, the heat insulation layer (3) is provided with groove structures II corresponding to the groove structures I one by one, and after the light guide layer (2) and the heat insulation layer (3) are spliced with each other, along the X-axis direction, the steel bars in the steel bar structure (8) are wrapped in each pair of groove structures, wherein each pair of groove structures comprises a pair of groove structures I provided on the opposite sides of the light guide layer (2) along the X-axis direction and a pair of groove structures II provided on the heat insulation layer (3) and corresponding to the pair of groove structures I, and along the Y-axis direction, the steel bars in the steel bar structure (8) are wrapped in each pair of groove structures, wherein each pair of groove structures comprises a pair of groove structures I provided on the opposite sides of the light guide layer (2) along the Y-axis direction and a pair of groove structures II provided on the heat insulation layer (3) and corresponding to the pair of groove structures I.

2. The illuminated traffic pavement marker assembly of claim 1, wherein: The light-emitting circuit board (6) is connected with an external power supply through wires extending out of the protective layer (10).

3. The illuminated traffic pavement marker assembly of claim 1, wherein: The heat insulation layer (3) is provided with an embedded groove (9) on the side far from the light guide layer (2).

4. The illuminated traffic pavement marker assembly of claim 1, wherein: The light guide material is acrylic, PC, ABS or PV material, and the light transmittance is 50-100%.

5. The illuminated traffic pavement marker assembly of claim 1, wherein: The steel bar structure (8) is a screw steel with a diameter of 6-8 mm, and the distance between adjacent groove structures is 40-80 mm.

6. The illuminated traffic pavement marker assembly of claim 1, wherein: The UHPC composite material for preparing the protective layer is composed of the following components in mass fraction: cement 30-50 parts, slag powder 3-5 parts, volcanic ash 1-3 parts, fine aggregate 5-10 parts, water reducing agent 0.5-2 parts, epoxy resin mortar 5-10 parts, polyvinyl alcohol fiber 4-6 parts and polyethylene fiber 1-4 parts.

7. The method of claim 6, wherein the traffic pavement marker assembly is illuminated by a light source. The method comprises the following steps: Step 1: the light-emitting circuit board is sleeved on the support column of the heat insulation layer through the support column reserved hole, the light guide layer is covered on the heat insulation layer, and the light guide layer and the heat insulation layer are spliced with each other, and the lead wire connected with the light-emitting circuit board is stretched out from the bottom reserved hole of the heat insulation layer of the light-emitting module; The steel bars are wrapped in each pair of groove structures along the X-axis direction, and the steel bars are wrapped in each pair of groove structures along the Y-axis direction, so that the steel bar structure of the net-shaped steel bar cage is formed outside the light-emitting module. Step 2: in a dry mixer, add the formula amount of cement, slag powder and volcanic ash, and stir for 2 minutes; then stop, add the formula amount of quartz sand, and stir for 1 minute; keep stirring, add the formula amount of water reducing agent, epoxy resin mortar; stir until uniform; stop, add the formula amount of polyvinyl alcohol fiber and polyethylene fiber, and stir for 30 seconds; the mixer is equipped with a vacuum system, and the mixer is vacuumed to remove bubbles after the addition of the epoxy resin mortar; Step 3: the prepared light-emitting module is inverted on the shaping mold on the vibration platform, the shaping mold is opened at the top and provided with lead wire reserved holes at the side, the lead wire connected with the light-emitting circuit board is stretched out from the lead wire reserved hole of the shaping mold; the volume of the inner cavity of the shaping mold is consistent with the size of the component to be formed; UHPC composite material is poured into the gap between the light-emitting module and the shaping mold, and the vibration platform is started at the same time, air in the shaping mold is shaken to form bubbles and is discharged, until the shaping mold is filled and no bubbles are discharged, the pouring of UHPC composite material is stopped, and the pouring is completed; Step 4: after pouring, the product is naturally solidified for 6-24 hours, the mold is removed, and after the mold is removed, the product is maintained at 20-25 DEG C and above 90% humidity, the maintenance time is 7-28 days, and the light-emitting traffic ground marking component is obtained after the maintenance, which is used for subsequent ground installation.

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