A maintenance-friendly multi-color lightening device

Abstract

The utility model provides a kind of multi-color brightening device of easy maintenance;It is related to lighting equipment field, to the problem that current street lamp is difficult to realize easy maintenance and output multiple color projection effect, by installing complex color light source in the near ground installation cavity of base, replace traditional top installation mode, so that maintenance operation does not need aerial work, using complex color light source as luminous main body, complex color light source in base emits upwards and contains multiple wavelengths, light enters the hollow channel of lamp pole through the transmission hole of base top, the light layer of hollow channel inner wall reflects light, reduce energy loss in transmission process, ensure that light is efficiently transmitted to the top of beam splitter;Light irradiation occurs dispersion after beam splitter, decomposed into multiple color light beams;Reflecting mirror above lamp pole receives these color light beams by reflecting concave surface, reflects and projects it to ground, finally forms color projection effect.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment, and in particular to an easy-to-maintain multi-color lighting device. Background Technology

[0002] Streetlights typically have their light sources mounted at the top of the pole, scattering light downwards to illuminate the road surface. However, when the light source needs replacement due to malfunction, high-altitude work is required for repair and replacement. To reduce the risks associated with high-altitude operations, existing technologies disclose streetlights that are easier to maintain. By placing the light source near the ground, the light is projected upwards through the pole and then onto the ground through a spherical mirror. Positioning the light source near the ground facilitates repair and replacement, reducing maintenance difficulty and operational risks.

[0003] Regarding the diversity of lighting colors, although different colored light sources can be replaced as needed, the output color before and after the replacement is still a single color, making it difficult to output a multi-colored projection effect and effectively improve the diversity of public facility lighting. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an easy-to-maintain multi-color lighting device. It uses a polychromatic light source to project upwards from a near-ground position, and the projection is dispersed by a beam splitter and projected onto the ground by a reflector to form a colored projection.

[0005] To achieve the above objectives, the following technical solution is adopted: An easy-to-maintain multi-color lighting device, comprising: The base has an internal mounting cavity in which a polychromatic light source is installed. The top of the base has a transmission hole through which the light output by the polychromatic light source passes, and the side of the base has an inspection port. The lamp post has a hollow channel inside, with a reflective layer attached to the inner wall of the hollow channel. The bottom of the lamp post is fixed to the base. The bottom of the hollow channel is coaxially distributed with the transmission hole, and a beam splitter is installed at the top so that the light output through the transmission hole can be dispersed by shining on the beam splitter. A reflector, mounted above the lamp post, has a reflective concave surface to reflect the colored light beams that have been dispersed by the beam splitter and project them onto the ground.

[0006] Furthermore, the radial cross-section of the hollow channel is circular, and the lamp post has a cylindrical structure.

[0007] Furthermore, the diameter of the lamp post gradually decreases as it moves away from the base along the axial direction of the lamp post.

[0008] Furthermore, a filter is installed inside the hollow channel of the lamp post, and the filter is arranged between the beam splitter and the transmission hole.

[0009] Furthermore, the inspection port on the side of the base is fitted with an inspection door, which is rotatably mounted on the base.

[0010] Furthermore, the base is a frustum-shaped shell structure, and the inspection port is located on the outer peripheral wall of the base.

[0011] Furthermore, the polychromatic light source is an incandescent lamp, a halogen lamp, or a white COB packaged LED.

[0012] Furthermore, the beam output by the polychromatic light source is coaxially distributed with the projection aperture.

[0013] Furthermore, the reflective layer is a silver-white reflective coating.

[0014] Furthermore, the beam splitter is a prism, and the reflector is fixed to the top rod by a frame.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are: To address the current challenge of maintaining streetlights while simultaneously outputting multi-color projection effects, this invention replaces the traditional top-mounted method by installing a polychromatic light source in the near-ground mounting cavity of the base. This eliminates the need for high-altitude maintenance. Using a polychromatic light source as the primary light source, the light emits multi-wavelength polychromatic light upwards through a transmission hole at the top of the base into the hollow channel of the light pole. The reflective layer on the inner wall of the hollow channel reflects the light, reducing energy loss during transmission and ensuring efficient light transmission to the beam splitter at the top. Upon impact with the beam splitter, the light disperses, breaking down into multiple colored beams. A reflector at the top of the light pole receives these colored beams through its concave surface, reflects them, and projects them onto the ground, ultimately creating a multi-color projection effect. This achieves simultaneous output of multiple colors, breaking the limitation of existing maintainable streetlights that only produce a single color. It effectively enhances the diversity and aesthetics of public facility lighting, meeting diverse public lighting needs. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0017] Figure 1 This is a schematic diagram of the easy-to-maintain multi-color lighting device in an embodiment of this utility model.

[0018] In the diagram, 1. Ground; 2. Base; 3. Inspection door; 4. Polychromatic light source; 5. Lamp post; 6. Filter; 7. Beam splitter; 8. Frame; 9. Reflector. Detailed Implementation

[0019] In a typical embodiment of this utility model, such as Figure 1 As shown, an easy-to-maintain multicolor lighting device is proposed.

[0020] Traditional streetlights are installed at the top, requiring high-altitude operations for maintenance, which is risky and difficult. Existing easy-to-maintain streetlights with near-ground light sources can only output a single color, failing to meet the diverse needs of public lighting. Therefore, this embodiment provides an easy-to-maintain multi-color lighting device that uses a polychromatic light source 4 and a beam splitter 7 to achieve multi-color output. The beam transmission is adjusted through a reflective layer inside the light pole 5 and a reflector 9 on the light pole 5, achieving the purpose of outputting a colored projection.

[0021] like Figure 1 As shown, the easy-to-maintain multi-color lighting device includes a base 2, a lamp post 5, and a reflector 9. The bottom end of the lamp post 5 is mounted on the base 2, and the top end is connected to the reflector 9.

[0022] The base 2 has an internal mounting cavity for accommodating and fixing the polychromatic light source 4; the top of the base 2 has a transmission hole for upward light output; the side has an inspection port to provide a near-ground operating channel for the maintenance and replacement of the light source.

[0023] The lamp post 5 has a hollow channel inside, with a reflective layer attached to the inner wall; the bottom end is fixed to the base 2 and the hollow channel is coaxial with the transmission hole, and a beam splitter 7 is installed at the top of the hollow channel; the reflective layer is used to reduce light transmission loss, and the beam splitter 7 is used to achieve polychromatic light dispersion.

[0024] The reflector 9 is mounted on the lamp post 5 and has a reflective concave surface to receive the dispersed colored light beam and reflect it onto the ground 1.

[0025] By installing the polychromatic light source 4 in the near-ground mounting cavity 1 of the base 2, replacing the traditional top mounting method, maintenance operations no longer require working at height. When the polychromatic light source 4 malfunctions, operators can directly access the light source through the inspection port on the side of the base 2, without having to climb the light pole 5 or use high-altitude work equipment. Disassembly, replacement, and installation can be completed directly on the ground 1, eliminating the risks of working at height from the operational scenario.

[0026] A polychromatic light source 4 is used as the main light source. Combined with the dispersive effect of the beam splitter 7, the single polychromatic light is decomposed into multiple colored lights, which are then projected onto the ground 1 through the reflector 9 to achieve multi-color lighting. The polychromatic light source 4 in the base 2 emits polychromatic light containing multiple wavelengths upwards. The light enters the hollow channel of the lamp post 5 through the transmission hole at the top of the base 2. The reflective layer on the inner wall of the hollow channel reflects the light, reducing energy loss during transmission and ensuring that the light is efficiently transmitted to the beam splitter 7 at the top. After the light shines on the beam splitter 7, it undergoes dispersion and is decomposed into multiple colored beams. The reflector 9 above the lamp post 5 receives these colored beams through the reflective concave surface, reflects them, and projects them onto the ground 1, ultimately forming a colored projection effect.

[0027] The light source is located in the mounting cavity of the base 2 near the ground 1. Maintenance and replacement can be completed through the inspection port, completely avoiding high-altitude operations, greatly reducing operational risks and maintenance difficulty, and improving maintenance efficiency. With the cooperation of polychromatic light source 4 and beam splitter 7, multiple colors are output simultaneously, breaking the limitation of single color of existing maintainable street lights, effectively improving the diversity and decoration of public facility lighting, and meeting diversified public lighting needs.

[0028] like Figure 1 As shown, the hollow channel has a circular radial cross-section and the lamp post 5 has a cylindrical structure. Combined with the silver-white reflective coating on the inner wall, it can make the light emitted by the polychromatic light source 4 uniformly reflected in the channel, avoiding light refraction loss caused by sharp corners, and ensuring that the beam is efficiently focused to the top beam splitter 7, providing sufficient light intensity for subsequent dispersion.

[0029] The diameter of the lamp post 5 gradually decreases along the axial direction away from the base 2. On the one hand, this reduces wind resistance and improves the overall stability of the lamp post 5, indirectly reducing the maintenance frequency after long-term use of the device. On the other hand, it makes the light transmission channel constricted, further converging the light beam and enhancing the concentration of the light projected onto the beam splitter 7, making the dispersed colored light band clearer.

[0030] The filter 6 is installed between the beam splitter 7 and the transmission aperture. It can filter out short-wavelength light that is irritating to the human eye before the light reaches the beam splitter 7, while still retaining a variety of visible light wavelengths. This does not affect the dispersion effect of polychromatic light, and can also prevent harmful light from being projected onto the ground 1, thereby improving the safety of public lighting.

[0031] The polychromatic light source 4 is limited to incandescent lamps, halogen lamps, or white COB packaged LEDs. These light sources are typical polychromatic lights (containing multiple visible light wavelengths), ensuring that the beam splitter 7 can successfully disperse them into multi-color beams. This directly guarantees the realization of multi-color lighting function from the selection of light sources. At the same time, the polychromatic light source 4 is coaxially distributed with the projection aperture, so that the beam is transmitted vertically upward, avoiding uneven dispersion caused by light deflection, and making the color projection of the ground 1 more uniform.

[0032] The base 2 is a frustum-shaped shell structure with an inspection port on its outer peripheral wall. Together with the rotating inspection door 3, it ensures the structural stability of the base 2, the frustum shape distributes the force more evenly, and has a strong anti-tipping ability. It also makes the maintenance operation more convenient. By rotating and opening the inspection door 3, one can directly access the polychromatic light source 4 inside the installation cavity without disassembling the entire base 2, which further simplifies the maintenance process of the ground 1.

[0033] The design of the inspection door 3 can also protect the polychromatic light source 4 and the mounting cavity inside the base 2, preventing dust, rainwater and other impurities from entering and causing light source failure, thereby indirectly reducing the frequency of maintenance and reducing maintenance costs from both the aspects of reducing failures and simplifying maintenance.

[0034] The combination of a circular channel, retractable light pole 5, and silver-white reflective coating minimizes light loss and improves dispersion and projection effects. The eye-protecting design of the filter 6 and the protective function of the inspection door 3 make the device suitable for use in public settings while reducing the risk of failure. The design of the frustum-shaped base 2 and the rotating inspection door 3 makes it easier and more time-saving to replace the light source and inspect the equipment, and basic maintenance can be completed without additional tools. The beam splitter 7 is a prism with stable physical properties, which can accurately decompose polychromatic light into red, orange, yellow, green, blue, indigo, and violet bands, ensuring the consistency of the multicolor effect. The reflector 9 is fixed to the top rod by the frame 8 to prevent the reflector 9 from shifting due to wind resistance and vibration, ensuring that the dispersed colored beam can be stably reflected and projected onto the target ground area 1, thus improving the reliability of multicolor lighting.

[0035] In this embodiment, the reflector 9 has a parabolic or spherical concave surface. The curvature of the concave surface needs to match the height of the lamp post 5 and the projection distance. By controlling the radius of curvature and the horizontal / vertical span of the concave surface, the focusing and light distribution of the colored beam can be achieved.

[0036] The mirror material must have high reflectivity. It can be made of glass with an aluminum / silver coating or polished metal (such as aluminum alloy) to ensure that the colored beams after dispersion have reduced reflection loss and maintain brightness. The reflector 9 has a fixed frame, such as a metal frame, for connecting to the mounting structure and is equipped with a back plate for protection. It is stably installed on the top of the light pole 5, protecting the mirror from external damage and shielding the beam splitter 7 below to reduce external impacts on the beam splitter 7. It also prevents rainwater and foreign objects from entering the light pole 5 through the top of the light pole 5.

[0037] Understandably, a transparent shell can be fitted over the beam splitter 7. This allows the dispersed colored light beam to pass through the shell while also shielding the beam splitter 7 and the top of the lamp post 5, preventing foreign objects from affecting their light-guiding function. The frame 8 is made of metal, such as stainless steel, and has a triangular or ring-shaped support structure. Its bottom is welded to the top of the lamp post 5 or detachably connected with bolts to ensure installation stability and resist wind resistance and vibration.

[0038] The top of the frame 8 is connected to the frame of the reflector 9 by bolts or clips. A buffer pad (such as a rubber pad) is added at the connection to prevent the mirror from shifting due to long-term vibration and to ensure projection accuracy. The reflector 9 must be mounted directly above the top of the lamp post 5, with the concave surface of the mirror facing the beam splitter 7 at the top of the lamp post 5. This ensures that the colored beam dispersed by the beam splitter 7 can be incident on the center area of ​​the concave surface of the reflector 9, avoiding uneven projection caused by beam shift.

[0039] The higher the light pole 5, the lower the installation height of the reflector 9 can be, compensating for the distance by focusing light through the concave surface; when the light pole 5 is low, the reflector 9 needs to be raised appropriately to ensure that the projection range covers the target road surface. The multi-colored bands of red, orange, yellow, green, blue, indigo, and violet after dispersion by the beam splitter 7 are projected upward along the axis of the light pole 5 onto the concave surface of the reflector 9.

[0040] A concave mirror uses its curvature to focus diverging colored light beams, forming a concentrated and uniform colored light band. The beam is then guided downwards by the concave surface, reflecting obliquely to the ground, achieving uniform coverage and clear color in decorative lighting. If the mirror is adjustable, the projection range of the light band can be changed by adjusting the mirror angle, such as shifting it from the center of the road to the sidewalks or changing the projection shape.

[0041] The selection of a specific polychromatic light source 4, the coaxial design of the polychromatic light source 4 and the projection hole, and the fixing of the reflector 9 to the frame 8 ensure that the color projection is clear, uniform, and does not shift, thus meeting the decorative needs of public lighting.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An easy-to-maintain multi-color lighting device, characterized in that, include: The base has an internal mounting cavity in which a polychromatic light source is installed. The top of the base has a transmission hole through which the light output by the polychromatic light source passes, and the side of the base has an inspection port. The lamp post has a hollow channel inside, with a reflective layer attached to the inner wall of the hollow channel. The bottom of the lamp post is fixed to the base. The bottom of the hollow channel is coaxially distributed with the transmission hole, and a beam splitter is installed at the top so that the light output through the transmission hole can be dispersed by shining on the beam splitter. A reflector, mounted above the lamp post, has a reflective concave surface to reflect the colored light beams that have been dispersed by the beam splitter and project them onto the ground.

2. The easy-to-maintain multi-color lighting device as described in claim 1, characterized in that, The hollow channel has a circular radial cross-section, and the lamp post has a cylindrical structure.

3. The easy-to-maintain multi-color lighting device as described in claim 2, characterized in that, As the pole moves away from the base along its axial direction, the pole diameter gradually decreases.

4. The easy-to-maintain multi-color lighting device as described in claim 1, 2, or 3, characterized in that, A filter is installed inside the hollow channel of the lamp post, and the filter is arranged between the beam splitter and the transmission hole.

5. The easy-to-maintain multi-color lighting device as described in claim 1, characterized in that, The base has an inspection port on its side with an inspection door, which is rotatably mounted on the base.

6. The easy-to-maintain multi-color lighting device as described in claim 5, characterized in that, The base is a frustum-shaped shell structure, and the inspection port is located on the outer peripheral wall of the base.

7. The easy-to-maintain multi-color lighting device as described in claim 1, characterized in that, The polychromatic light source is an incandescent lamp, a halogen lamp, or a white COB-packaged LED.

8. The easy-to-maintain multi-color lighting device as described in claim 7, characterized in that, The beam of light output from the polychromatic light source is coaxially distributed with the projection aperture.

9. The easy-to-maintain multi-color lighting device as described in claim 1, characterized in that, The reflective layer is a silver-white reflective coating.

10. The easy-to-maintain multi-color lighting device as described in claim 1, characterized in that, The beam splitter is a triangular prism, and the reflector is fixed to the top rod by a frame.

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