A wide light guardrail lighting fixture

Abstract

The invention discloses a wide light guardrail lighting fixture, comprising a lighting lamp and a convex lens cover, the convex lens cover comprising a focusing curved surface body and a light collecting curved surface body, the light collecting curved surface body is located on one side of the focusing curved surface body and connected to the focusing curved surface body, the focusing curved surface body and the light collecting curved surface body have the same installation plane, a lamp trough is provided on the installation plane and on the part of the focusing curved surface body, a flaring groove and a connecting groove are provided on the installation plane and on the part of the light collecting curved surface body, the flaring groove is connected with the lamp trough through the connecting groove, and the lighting lamp is arranged in the lamp trough; in the direction of the structure being viewed from above, light is incident through the light incident surface of the lamp trough, and when it is emitted through the light emitting surface of the focusing curved surface body, light is formed to diverge to both sides; the patent of the invention utilizes the above structure to make the light diverge to both sides of the lighting fixture, forming a wider light beam, realizing a longitudinal light distribution with a pitch-to-height ratio of 8 to 10 times, and at the same time achieving good road lighting uniformity.

Description

Technical Field

[0001] The invention relates to a lighting fixture, in particular to a highway guardrail lighting fixture. Background Art

[0002] With the rapid development of national highway construction, there are more and more complex traffic sections such as urban elevated roads, interchanges, cross-river and cross-sea bridges, and entrance and exit turning ramps of highways. For these special sections, the use of ordinary high poles or street lamps for lighting not only destroys the landscape harmony of the original buildings, but also has serious defects in uniformity, induction, light pollution, etc., which is not conducive to driving safety and comfort, and also affects the lives of surrounding residents. LED guardrail lights just provide a perfect solution for the above-mentioned bridges, urban interchanges, and highways.

[0003] In recent years, the development of LED guardrail lights has gradually matured, which can not only achieve better road lighting uniformity, but also greatly reduce the power density of road lighting and achieve lower energy consumption. However, the width of conventional guardrail lights is not enough, and the light is not fully utilized. For example, the State Intellectual Property Office published a patent document with publication number CN209339045U on September 3, 2019, which discloses a highway guardrail with night vision lighting function, comprising a main column (1), a transverse guardrail (2), a vertical guardrail (3), a support rod (4) and a guide light strip (11), characterized in that: the vertical guardrail (3) is fixedly connected between two transverse guardrails (2), the vertical guardrail (3) has a total of several groups, the interior of the transverse guardrail (2) is a hollow structure, a wire groove (12) is provided in the middle of the transverse guardrail (2), a connecting wire is fixed in the wire groove (12), the upper end of the wire is electrically connected to the lower end of a lighting lamp (10), the lighting lamp (10) is fixedly connected to the upper end surface of the upper transverse guardrail (2), and a lampshade (13) is also provided on the outside of the lighting lamp (10), the two ends of the transverse guardrail (2) are plugged into the two main columns (1), and are fixed from the outside of the main columns (1) by fixing bolts. The transverse guardrail (2) is fixed, a group of storage batteries (9) is fixedly connected to the middle lower end of the main column (1), the upper end of the storage battery (9) is electrically connected to a wire, the wire is electrically connected to a lighting lamp (10), a street lamp (7), a power-generating wind ball (5), a solar panel (6), a control panel (8) and a guide light strip (11), a plastic filling block (20) is provided at the insertion point of the transverse guardrail (2) in the middle of the main column (1), a support rod (4) is fixedly connected to the upper end of the main column (1), a power-generating wind ball (5) or a solar panel (6) is fixedly connected to the upper end of the support rod (4), the support rod (4) connected to the power-generating wind ball (5) and the support rod (4) of two sections of the solar panel (6) are arranged alternately, a group of street lamps (7) are fixedly connected to the upper end of the support rod (4) connected to the solar panel (6), a control panel (8) is fixedly connected to the lower end of the support rod (4), and a guide light strip (11) is fixedly connected to the front of the vertical guardrail (3). Although the above patent documents have lighting functions, the width of the lighting is insufficient and the light is not fully utilized. Summary of the invention

[0004] The object of the present invention is to provide a wide light guardrail lighting fixture which radiates light to both sides of the lighting fixture.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A wide light guardrail lighting fixture comprises a lighting lamp and a convex lens cover, wherein the convex lens cover comprises a focusing curved surface body and a light collecting curved surface body, the light collecting curved surface body is located on one side of the focusing curved surface body and is connected to the focusing curved surface body, the focusing curved surface body and the light collecting curved surface body have the same installation plane, a lamp trough is provided on the installation plane and on the part of the focusing curved surface body, a flaring groove and a connecting groove are provided on the installation plane and on the part of the light collecting curved surface body, the flaring groove is connected to the lamp trough through the connecting groove, the lighting lamp is arranged in the lamp trough, the surface in the lamp trough is the light incident surface, and the surfaces of the focusing curved surface body and the light collecting curved surface body are the light emitting surfaces; in the direction of the top view of the structure, the light enters the lamp trough through the light incident surface The light enters from the surface and forms light diverging to both sides when it is emitted from the light exiting surface of the focusing curved surface body; the contour line in the lamp trough is a left-right symmetrical structure, and the right half includes a transverse groove wall main curve segment and a transverse groove wall auxiliary curve segment connected in sequence; the contour line of the focusing curved surface body is a left-right symmetrical structure, and the right half includes a transverse main curve segment and a transverse auxiliary curve segment connected in sequence; the transverse groove wall main curve segment converges the light at the center of the lighting lamp in the direction of the transverse main curve segment, so that the light emits a lateral main beam to the right; the transverse groove wall auxiliary curve segment converges the light at the center of the lighting lamp in the direction of the transverse auxiliary curve segment, so that the light is deflected toward the direction of the lateral main beam on the right.

[0007] Furthermore, in the main viewing direction, the curvatures of the outer contours of the light-collecting curved surface and the light-collecting curved surface are the same.

[0008] Furthermore, in the side-view structural direction, the contour lines in the lamp trough include a longitudinal trough wall straight line segment, a longitudinal trough bottom curve segment, and a longitudinal trough wall curve segment connected in sequence, the contour line of the focusing curved surface body includes a longitudinal main curve segment and a longitudinal auxiliary curve segment connected to each other, the light-collecting curved surface body includes a longitudinal outer contour straight line segment and a longitudinal contour curve segment of the flared trough, the longitudinal trough bottom curve segment converges the light within the range of 50° to 150° of the center of the lighting lamp toward the longitudinal main curve segment, the longitudinal main curve segment converges the light and emits it to form a main light beam, and the main light beam emission angle is controlled at 2° to 5°; the longitudinal trough wall curve segment converges the light within the range of 150° to 180° of the center of the lighting lamp toward the longitudinal auxiliary curve segment, the thickness between the longitudinal trough wall curve segment and the longitudinal auxiliary curve segment decreases from thick to thin, so that the light is deflected toward the main light beam; the trough wall straight line segment projects the light within the range of 0° to 50° of the center of the lighting lamp toward the longitudinal contour curve segment of the flared trough, the longitudinal contour curve segment of the flared trough reflects the light toward the longitudinal outer contour straight line segment, so that the light is deflected toward the main light beam.

[0009] Furthermore, the longitudinal groove bottom curve section satisfies the formula: y = -0.0008x 3 +0.0137x 2 -0.1671x+8.6049, 0≤x≤14; the longitudinal groove wall curve segment satisfies the formula: y=-0.0211x 4 +1.3556x 3-32.607x 2 +347.99x-1382.1, 14≤x<20.

[0010] Furthermore, the longitudinal main curve segment satisfies the formula: y = -0.0004x 4 +0.0141x 3 -0.265x 2 +2.3806x+12.743, 0≤x≤19; the longitudinal auxiliary curve segment satisfies the formula: y=-0.4827x 3 +28.639x 2 -568.82x+3792.7, 19≤x≤22.

[0011] Furthermore, the longitudinal outer contour straight line segment satisfies the formula: y=0.2778x+0.0024, 0≤x≤9; the longitudinal contour curve segment of the expansion groove satisfies the formula: y=0.069x 2 -2.2868x+11.452, 0≤x<6.5.

[0012] Furthermore, in the main viewing direction, the outer contours of the light-collecting curved surface and the light-collecting curved surface satisfy the following formula: y = -3E-07x 6 +4E-05x 5 -0.002x 4 +0.049x 3 -0.6326x 2 +4.7098x+1.3232, 0≤x<42.

[0013] Furthermore, in the direction of looking down at the structure, the main curve segment of the transverse groove wall satisfies the formula: y = -1.1136x 4 +4.74x 3 -6.8246x 2 +0.3275x+13.403, 0≤x<3; the auxiliary curve section of the transverse groove wall satisfies the formula: y=-0.1807x 2 -0.0221x+6.1709, 0≤x<6.

[0014] Furthermore, in the direction of looking down at the structure, the transverse main curve segment satisfies the formula: y = -0.0003x 4 +0.0124x 3 -0.228x 2 +2.1823x+0.0366, 0≤x<20; the horizontal auxiliary curve segment satisfies the formula: y=-1.2196x 4 +7.1367x 3 -15.072x 2+16.916x+0.4891, 0≤x<3.

[0015] Furthermore, the lighting lamp is an LED lamp.

[0016] Beneficial effects of the present invention:

[0017] The patent of the present invention utilizes the above structure to make the light diverge to both sides of the lighting fixture along the direction of the guardrail, forming a wider light beam, so that the light diverges at a large angle in the direction of the lane, achieving a longitudinal light distribution with a distance-to-height ratio of 8 to 10 times, and achieving good road lighting uniformity;

[0018] The light-collecting curved surface is located on one side of the light-collecting curved surface and connected to the light-collecting curved surface. The light-collecting curved surface is added in the light-emitting direction of 0° to 50° of the LED light source, thereby realizing the functions of collecting, concentrating and strengthening light, improving the utilization rate of light by more than 8%, and making the light-emitting efficiency greater than 85%.

[0019] The lens is designed to cut off light at a long distance to ensure the comfort of road lighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described with the aid of the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other accompanying drawings according to the following drawings without creative work:

[0021] Figure 1 It is a front view of the present invention;

[0022] Figure 2 for Figure 1 The top view shown;

[0023] Figure 3 for Figure 1 Convex side view shown;

[0024] Figure 4 for Figure 1 Light distribution diagram for the lighting conditions shown;

[0025] Figure 5 for Figure 2 Light distribution diagram for the lighting conditions shown;

[0026] Figure 6 for Figure 3 Light distribution diagram for the lighting conditions shown.

[0027] In the figure: 1. lighting lamp; 2. convex lens cover; 3. focusing curved surface; 4. light collecting curved surface; 5. installation plane; 6. lamp trough; 7. connecting groove; 8. flared groove; 9. transverse groove wall main curve segment; 10. transverse groove wall auxiliary curve segment; 11. transverse main curve segment; 12. transverse auxiliary curve segment; 13. outer contour line; 14. longitudinal groove wall straight line segment; 15. longitudinal groove bottom curve segment; 16. longitudinal groove wall curve segment; 17. longitudinal main curve segment; 18. longitudinal auxiliary curve segment; 19. longitudinal outer contour straight line segment; 20. longitudinal contour curve segment of flared groove; 21. mounting part. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0029] like Figure 1 , 2 As shown in Figures 3, 4, 5 and 6, a wide-light guardrail lighting fixture comprises a lighting lamp 1 and a convex lens cover 2, wherein the convex lens cover 2 comprises a focusing curved surface body 3 and a light collecting curved surface body 4, the light collecting curved surface body 4 is located on one side of the focusing curved surface body 3 and is connected to the focusing curved surface body 3, the focusing curved surface body 3 and the light collecting curved surface body 4 have the same mounting plane 5, a lamp groove 6 is provided on the mounting plane 5 and on the portion located at the focusing curved surface body 3, a flaring groove 8 and a connecting groove 7 are provided on the mounting plane 5 and on the portion located at the light collecting curved surface body 4, the flaring groove 8 is connected to the lamp groove 6 through the connecting groove 7, the lighting lamp 1 is arranged in the lamp groove 6, the surface in the lamp groove 6 is the light incident surface, and the surfaces of the focusing curved surface body and the light collecting curved surface body are the light emitting surfaces; in addition, two mounting members 21 are provided on the mounting plane 5, and the convex lens cover 2 is mounted to the guardrail through the mounting members 21.

[0030] In the main viewing direction, the curvature of the outer contours of the light-collecting curved surface body 3 and the light-collecting curved surface body 4 is the same, and the outer contour line 13 of the light-collecting curved surface body 3 satisfies the following formula: y = -3E-07x 6 +4E-05x 5 -0.002x 4 +0.049x 3 -0.6326x 2 +4.7098x+1.3232, 0≤x<42;

[0031] In the direction of the top view of the structure, the light enters through the light-entering surface of the lamp trough 6, and when it exits through the light-emitting surface of the focusing curved surface, it forms light that diverges to both sides; the contour line in the lamp trough 6 is a left-right symmetrical structure, and the right half includes a transverse groove wall main curve segment 9 and a transverse groove wall auxiliary curve segment 10 connected in sequence, and the transverse groove wall main curve segment 9 satisfies the formula: y = -1.1136x4 +4.74x 3 -6.8246x 2 +0.3275x+13.403, 0≤x<3; the transverse groove wall auxiliary curve segment 10 satisfies the formula: y=-0.1807x 2 -0.0221x+6.1709, 0≤x<6.

[0032] The contour line of the light-collecting curved surface 3 is a bilaterally symmetrical structure. The right half includes a transverse main curve segment 11 and a transverse auxiliary curve segment 12 connected to each other. The transverse main curve segment 11 satisfies the formula: y = -0.0003x 4 +0.0124x 3 -0.228x 2 +2.1823x+0.0366, 0≤x<20; the lateral auxiliary curve segment 12 satisfies the formula: y=-1.2196x 4 +7.1367x 3 -15.072x 2 +16.916x+0.4891, 0≤x<3.

[0033] The main curve section 9 of the transverse groove wall converges the light at the center of the lighting lamp 1 toward the direction of the transverse main curve section 11, so that the light emits a lateral main beam to the right. The auxiliary curve section 10 of the transverse groove wall converges the light at the center of the lighting lamp toward the direction of the transverse auxiliary curve section 12, so that the light is deflected toward the direction of the lateral main beam on the right.

[0034] Similarly, the left half of the contour line in the lamp trough 6 matches the left half of the contour line of the light-collecting curved surface body 3, so that the light is emitted to the left side as a lateral main beam.

[0035] The above structure allows light to be emitted along the direction of the guardrail through the light-emitting surface of the focusing curved body to form light that diverges to both sides, and diverges on both sides of the lighting fixture to form a wider light beam, thereby achieving a wider longitudinal distance-to-height ratio and achieving good road lighting uniformity.

[0036] In the side view structure direction, the contour line in the lamp slot 6 includes a longitudinal slot wall straight line segment 14, a longitudinal slot bottom curve segment 15, and a longitudinal slot wall curve segment 16 connected in sequence. The longitudinal slot bottom curve segment 15 satisfies the formula: y = -0.0008x 3 +0.0137x 2 -0.1671x+8.6049, 0≤x≤14. The longitudinal groove wall curve section 16 satisfies the formula: y=-0.0211x 4 +1.3556x 3 -32.607x 2 +347.99x-1382.1, 14≤x<20.

[0037] In the side view direction, the contour line of the light-collecting curved surface body 3 includes a longitudinal main curve segment 17 and a longitudinal auxiliary curve segment 18 connected to each other. The longitudinal main curve segment 17 satisfies the formula: y = -0.0004x 4 +0.0141x 3 -0.265x 2 +2.3806x+12.743, 0≤x≤19. The longitudinal auxiliary curve segment 18 satisfies the formula: y=-0.4827x 3 +28.639x 2 -568.82x+3792.7, 19≤x≤22.

[0038] In the side view of the structure, the light collecting curved surface body 4 includes a longitudinal outer contour straight line segment 19 and a flared groove longitudinal contour curve segment 20. The longitudinal outer contour straight line segment 19 satisfies the formula: y = 0.2778x + 0.0024, 0 ≤ x ≤ 9. The flared groove longitudinal contour curve segment 20 satisfies the formula: y = 0.069x 2 -2.2868x+11.452, 0≤x<6.5.

[0039] The longitudinal groove bottom curve section 15 and the longitudinal main curve section 17 cooperate with each other: the longitudinal groove bottom curve section 15 converges the light within the range of 50° to 150° from the center of the lighting lamp to the longitudinal main curve section 17, and the longitudinal main curve section 17 converges the light to form a main light beam, and the main light beam output angle is controlled at 2° to 5°;

[0040] The longitudinal groove wall curve section 16 and the longitudinal auxiliary curve section 18 cooperate with each other: the longitudinal groove wall curve section 16 converges the light within the range of 150° to 180° from the center of the lighting lamp to the longitudinal auxiliary curve section 18, and the thickness between the longitudinal groove wall curve section 16 and the longitudinal auxiliary curve section 18 is from thick to thin, so that the light is deflected toward the main light beam direction;

[0041] The groove wall straight section 14, the expanded groove longitudinal contour curve section 20 and the longitudinal outer contour straight section 19 cooperate with each other: the groove wall straight section 14 projects the light within the range of 0° to 50° of the center of the lighting lamp to the expanded groove longitudinal contour curve section 20, and the expanded groove longitudinal contour curve section 20 reflects the light to the longitudinal outer contour straight section 19, so that the light is deflected toward the direction of the main light beam.

[0042] The structure in the side-view direction mainly directs the light toward the highway and directs a portion of the light toward the road surface.

[0043] The light-collecting curved surface is located on one side of the light-collecting curved surface and connected to the light-collecting curved surface. The light-collecting curved surface is added in the light-emitting direction of the LED light source at 0° to 50°, realizing the functions of light collection, concentration and strong light, and improving the utilization rate of light by more than 8%. The light-cutting design of the lens at the far end of the lighting ensures the comfort of road lighting.

[0044] The patent of this invention provides a wide-beam low-altitude lighting technology, which performs secondary light distribution design on LED light sources, so that the light diverges at a large angle in the direction of lane travel (longitudinal direction), and realizes a longitudinal light distribution with a distance-to-height ratio of 8 to 10 times. The lens collects light at a distance, achieving good light interception and a light output efficiency greater than 85%.

[0045] The implementation described above is only a description of the implementation mode of the present invention, and does not limit the concept and scope of the present invention. Without departing from the design scheme of the present invention, the equivalent structure made by ordinary engineering and technical personnel in the field of the present invention and the direct or indirect application in related technical fields should all fall within the protection scope of the present invention.

Claims

1. A wide light guardrail lighting fixture, comprising a lighting lamp and a convex lens cover, characterized in that: The convex lens cover comprises a focusing curved surface body and a light collecting curved surface body, the light collecting curved surface body is located on one side of the focusing curved surface body and connected to the focusing curved surface body, the focusing curved surface body and the light collecting curved surface body have the same installation plane, a lamp trough is provided on the installation plane and on the part of the light collecting curved surface body, a flaring groove and a connecting groove are provided on the installation plane and on the part of the light collecting curved surface body, the flaring groove is connected to the lamp trough through the connecting groove, the lighting lamp is arranged in the lamp trough, the surface in the lamp trough is the light incident surface, and the surfaces of the focusing curved surface body and the light collecting curved surface body are the light emitting surfaces; in the direction of the structure viewed from above, the light enters through the light incident surface of the lamp trough, and is emitted through the light emitting surface of the focusing curved surface body. The light radiates toward both sides; the contour line in the lamp trough is a bilaterally symmetrical structure, and the right half includes a transverse trough wall main curve segment and a transverse trough wall auxiliary curve segment connected in sequence; the contour line of the light-collecting curved surface body is a bilaterally symmetrical structure, and the right half includes a transverse main curve segment and a transverse auxiliary curve segment connected in sequence; the transverse trough wall main curve segment converges the light at the center of the lighting lamp toward the transverse main curve segment, so that the light emits a lateral main beam to the right; the transverse trough wall auxiliary curve segment converges the light at the center of the lighting lamp toward the transverse auxiliary curve segment, so that the light deflects toward the direction of the lateral main beam on the right; the lighting lamp adopts an LED lamp; In the side view structural direction, the contour line in the lamp trough includes a longitudinal trough wall straight line segment, a longitudinal trough bottom curve segment, and a longitudinal trough wall curve segment connected in sequence, the contour line of the light-collecting curved surface body includes a longitudinal main curve segment and a longitudinal auxiliary curve segment connected, and the light-collecting curved surface body includes a longitudinal outer contour straight line segment and a flared trough longitudinal contour curve segment; The longitudinal groove bottom curve section converges the light within the range of 50° to 150° of the center of the lighting lamp toward the longitudinal main curve section, and the longitudinal main curve section converges the light to form a main light beam, and the main light beam emission angle is controlled at 2° to 5°; the longitudinal groove wall curve section converges the light within the range of 150° to 180° of the center of the lighting lamp toward the longitudinal auxiliary curve section, and the thickness between the longitudinal groove wall curve section and the longitudinal auxiliary curve section is from thick to thin, so that the light is deflected toward the main light beam direction; the groove wall straight section projects the light within the range of 0° to 50° of the center of the lighting lamp toward the longitudinal contour curve section of the flared groove, and the longitudinal contour curve section of the flared groove reflects the light toward the longitudinal outer contour straight section, so that the light is deflected toward the main light beam direction; The longitudinal groove bottom curve section satisfies the formula: y = -0.0008x 3 +0.0137x 2 -0.1671x+8.6049, 0≤x≤14; the longitudinal groove wall curve segment satisfies the formula: y=-0.0211x 4 +1.3556x 3 -32.607x 2 +347.99x-1382.1, 14≤x<20; The longitudinal main curve segment satisfies the formula: y = -0.0004x 4 +0.0141x 3 -0.265x 2 +2.3806x+12.743, 0≤x≤19; the longitudinal auxiliary curve segment satisfies the formula: y=-0.4827x3+28.639x 2 -568.82x+3792.7, 19≤x≤22; The longitudinal outer contour straight line segment satisfies the formula: y=0.2778x+0.0024, 0≤x≤9; the longitudinal contour curve segment of the expansion groove satisfies the formula: y=0.069x 2 -2.2868x+11.452, 0≤x<6.5; In the main viewing direction, the outer contours of the light-collecting curved surface and the light-collecting curved surface satisfy the following formula: y = -3E -07 x 6 +4E -05 x 5 -0.002x 4 +0.049x 3 -0.6326x 2 +4.7098x+1.3232, 0≤x<42; In the direction of looking down at the structure, the main curve segment of the transverse groove wall satisfies the formula: y = -1.1136x 4 +4.74x 3 -6.8246x 2 +0.3275x+13.403, 0≤x<3; the auxiliary curve section of the transverse groove wall satisfies the formula: y=-0.1807x 2 -0.0221x+6.1709, 0≤x<6; In the direction of looking down at the structure, the transverse main curve segment satisfies the formula: y = -0.0003x 4 +0.0124x 3 -0.228x 2 +2.1823x+0.0366, 0≤x<20; the horizontal auxiliary curve segment satisfies the formula: y=-1.2196x 4 +7.1367x 3 -15.072x 2 +16.916x+0.4891, 0≤x<3; In the main viewing structural direction, the curvatures of the outer contours of the light-collecting curved surface and the light-collecting curved surface are the same.

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