Impact resistant street light housing

Abstract

This utility model discloses an impact-resistant street light housing, belonging to the technical field of street light accessories. Addressing the problems of poor impact resistance, insufficient waterproofing, weak corrosion resistance, and cumbersome installation in existing street light housings, this invention adopts an integrated molded housing body. The body includes a long, plate-shaped base and a receiving cavity at one end. The base has isosceles trapezoidal reinforcing ribs arranged along its length and mounting holes. It has edge guards around three edges, and a positioning hole is located at the end furthest from the receiving cavity. The outer wall of the receiving cavity is connected to a horizontal connecting part. The housing body is made of glass fiber reinforced composite material and covered with an anti-corrosion coating. This utility model enhances strength and reduces material usage through a gradient design of reinforcing ribs, improves waterproofing through edge guards, simplifies installation through positioning holes, and achieves impact resistance, resistance to extreme temperatures and acid / alkali corrosion through the composite material and coating, making it suitable for outdoor use and extending its service life.

Description

Technical Field

[0001] This utility model provides a street light housing, and particularly relates to an impact-resistant street light housing. Background Technology

[0002] The street light housing is an important component of the street light system. It is mainly used to enclose and protect the core components inside the street light, such as the light source, driver power supply, and control module, to prevent them from being directly exposed to the external environment. At the same time, it provides structural support for the street light as a whole, ensuring that the street light can be stably installed on carriers such as light poles and achieve normal lighting function in outdoor environments.

[0003] In the existing technology, the housing of streetlights is usually made of a single metal material (such as cast iron or ordinary steel) or conventional plastic material. The basic structure usually includes a flat base and a closed cavity connected to the base. The base is usually a simple flat plate without reinforcement, the side walls of the cavity are usually flat and connected to the base by splicing, and the parts used to connect to the light pole are usually fixed welded structures or simple plates with only a single connection hole. This type of structure has significant shortcomings: First, the single material results in poor impact resistance, making it prone to breakage under external impact. Furthermore, the heavy weight of the metal material increases the difficulty of installation and maintenance. Second, the waterproof design is rudimentary; the base lacks an effective water-blocking structure at the edges, allowing rainwater to easily seep into the internal components and damage them. Third, it has weak corrosion resistance; the metal material is susceptible to acid and alkali corrosion, and ordinary plastics are prone to embrittlement or deformation in extreme temperature environments (below -30°C or above 50°C), typically resulting in a service life of only 5-10 years. Fourth, the structural design lacks material optimization; the base lacks reinforcing ribs, leading to insufficient overall strength, requiring increased material thickness to compensate, indirectly increasing costs. Additionally, the poor compatibility of connecting components makes it difficult to meet installation requirements in different scenarios. Utility Model Content

[0004] In view of the problems of poor impact resistance, easy breakage, heavy weight, inconvenient installation and maintenance, insufficient waterproof performance, weak corrosion resistance, difficulty in adapting to extreme temperatures, short service life, unreasonable structural design, high cost and poor installation adaptability of existing street light housings, this utility model provides an impact-resistant street light housing.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an impact-resistant street light housing, comprising an integrally molded housing body; the housing body includes a long strip-shaped base, the upper surface of which is provided with several reinforcing ribs, each reinforcing rib being arranged parallel to each other along the length of the base, and each reinforcing rib having mounting holes that penetrate its thickness evenly distributed; one end of the base is integrally connected to a receiving cavity, the receiving cavity being a box structure with a closed top and an opening facing one side of the base; the outer wall of the receiving cavity away from the base is provided with a horizontally extending connecting part, the connecting part being perpendicularly connected to the outer wall of the receiving cavity; the housing body is made of composite material, and its outer and inner surfaces are both smooth curved surfaces; the connecting part is a rectangular flat plate structure, on which two connecting holes penetrate its thickness are provided, the two connecting holes being symmetrically distributed along the length of the connecting part; the top of the receiving cavity is an upwardly convex arc-shaped curved surface, and the two side walls of the receiving cavity are concave inward. The recessed arc-shaped wall has its bottom ends smoothly connected to the two side edges of the base. The base has upward-extending flanges that surround the three edges of the base, with a height of 5-8mm and rounded corners at the top. The reinforcing ribs have an isosceles trapezoidal cross-section, with the top width smaller than the bottom width, and the height of each reinforcing rib gradually decreases from the end closest to the cavity to the other. The inner wall of the cavity has four internal mounting posts located at the four corners of the cavity wall, extending along the depth of the cavity, and each post has an internally threaded hole at its end. The outer surface of the main body of the outer shell is covered with a coating with a thickness of 0.1-0.3mm, and the edge of the coating is flush with the edge of the main body of the outer shell. The end of the base furthest from the cavity has two positioning holes symmetrically distributed along the width of the base, and the axis of the positioning holes is perpendicular to the upper surface of the base.

[0006] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages compared with the prior art:

[0007] The beneficial effects of this utility model are as follows: the outer shell is integrally molded from composite materials, utilizing the elasticity of the material to achieve impact resistance and buffering, while the lightweight design reduces the burden of installation and maintenance; the arc-shaped top and concave arc-shaped sidewalls of the receiving cavity enhance structural stability, and the edge guards of the base enhance waterproof performance; the composite material of the outer shell and the outer surface coating effectively resist acid and alkali corrosion and adapt to a wide temperature range from -30°C to +50°C, extending the service life to more than 30 years; the isosceles trapezoidal reinforcing ribs enhance the strength of the base while reducing material usage and controlling costs; the double symmetrical connecting holes of the connecting part, the base positioning holes, and the mounting columns inside the receiving cavity optimize the installation structure, improve adaptability, and comprehensively meet the actual needs of current streetlights.

[0008] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of an impact-resistant street lamp housing according to the present invention;

[0010] Figure 2 This is a bottom view of an impact-resistant street lamp housing according to the present invention;

[0011] Figure 3 This is a cross-sectional view of an impact-resistant street lamp housing according to the present invention;

[0012] Figure 4 This is a side view of an impact-resistant street light housing according to the present invention.

[0013] As shown in the figure:

[0014] 1. Outer shell; 2. Base; 3. Reinforcing ribs; 4. Mounting holes; 5. Receiving cavity; 6. Connecting part; Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0018] like Figure 1-4As shown, this utility model discloses an impact-resistant street light housing, including an integrally molded housing body 1. The housing body 1 is made of an elastic material composed of more than ten kinds of high-end anti-corrosion materials. Both its outer and inner surfaces are smooth curved surfaces. The outer surface is covered with an anti-corrosion coating with a thickness of 0.1-0.3mm, and the edge of the coating is flush with the edge of the housing body 1. The housing body 1 includes a long strip-shaped base 2. The base 2 is 800mm long and 200mm wide. Its edge is provided with an upwardly extending baffle. The baffle is set around the three edges of the base 2 except for the edge away from the receiving cavity 5, with a height of 6mm and a rounded corner structure at the top. Five reinforcing ribs 3 are provided on the upper surface of the base 2. The reinforcing ribs 3 are arranged parallel to each other along the length of the base 2 at intervals of 150mm. The cross-section of the reinforcing ribs 3 is an isosceles trapezoid with a top width of 20mm and a bottom width of 30mm. The height of each reinforcing rib 3 gradually decreases from 80mm at one end near the receiving cavity 5 to 40mm at the other end. Each reinforcing rib 3 is evenly distributed with mounting holes 4 of 10mm in diameter, with a hole spacing of 100mm. The receiving cavity 5 is integrally connected to one end of the base 2. The receiving cavity 5 is a box structure with a closed top and an opening facing one side of the base 2. It is 300mm long, 200mm wide, and 150mm deep. Its top is an upwardly convex arc-shaped surface with a radius of curvature of 150mm, and the two side walls are arc-shaped walls that are concave inward with a radius of curvature of 200mm. The bottom ends of the two side walls are smoothly connected to the two side edges of the base 2. Four internal mounting posts, each 20mm in diameter and 30mm in length, are located at the four corners of the inner wall of the receiving cavity 5. These posts extend along the depth of the cavity and have M8 internal threaded holes at their ends. A horizontally extending connecting portion 6, perpendicular to the outer wall of the receiving cavity 5 (away from the base 2), is located on its outer wall. This connecting portion 6 is a rectangular flat plate, 150mm long, 80mm wide, and 10mm thick, with two 12mm diameter connecting holes symmetrically distributed along its length, with a center-to-center distance of 100mm. Two 8mm diameter positioning holes, symmetrically distributed along the width of the base 2, are located at the end of the base 2 away from the receiving cavity 5. These holes are symmetrically distributed along the width of the base 2, with a center-to-center distance of 160mm, and their axes are perpendicular to the upper surface of the base 2. Figure 3 and Figure 4 As shown, the upper surface of the long strip-shaped base 2 of an impact-resistant street lamp housing is provided with several reinforcing ribs 3 arranged parallel to each other along its length. The cross-section of the reinforcing rib 3 is an isosceles trapezoid with the top width being smaller than the bottom width. The height of each reinforcing rib 3 gradually decreases from one end near the receiving cavity 5 to the other end. Each reinforcing rib 3 is provided with mounting holes 4 that penetrate its thickness. The edge of the base 2 is provided with an upwardly extending baffle. The baffle is provided around the three edges of the base 2 with a height of 5-8mm and a rounded top. The end of the base 2 away from the receiving cavity 5 is provided with two positioning holes that are symmetrically distributed along its width and whose axis is perpendicular to the upper surface.

[0019] In this implementation scheme, the reinforcing rib 3 is connected to the upper surface of the base 2 using an integral injection molding process. The spacing between adjacent reinforcing ribs 3 is evenly distributed according to the width of the base 2 to ensure a balanced distribution of support force for the lamp body. The connection between the edge and the edge of the base 2 uses a rounded transition of R2-R3 to avoid cracking of the edge due to stress concentration during long-term use. The positioning holes are staggered with the reinforcing rib 3 to prevent local strength reduction caused by dense holes in the base 2. From the implementation points, the slant angle of the isosceles trapezoid of the reinforcing rib 3 is controlled between 65° and 70°. This angle ensures the bending resistance of the rib and facilitates mold demolding during production, reducing manufacturing costs. The edge height of 5-8mm is the optimal range verified by outdoor rain testing. Below 5mm, it cannot block oblique rainwater, and above 8mm, it will interfere with the lamp body mounting clips. In terms of innovation, the height gradient design of each reinforcing rib 3 is tailored to the actual stress conditions of the base 2. The end closer to the receiving cavity 5, which bears the weight of the lamp body and connection stress, requires higher strength; this is achieved by increasing the rib height. The end further away, where the stress is less, is appropriately thinned, forming a "gradient strength" structure. This saves 15%-20% of material compared to reinforcing ribs of equal height. The positioning holes and the positioning pins of the lamp body bracket use a clearance fit of 0.1-0.2mm, allowing for quick initial alignment during installation. Precise fixing is then achieved through the mounting holes 4 on the reinforcing rib 3, reducing installation time by more than 40%. The rounded corner structure at the top of the edge, in addition to safety protection, reduces dust accumulation at the edge, preventing rainwater and dust from mixing and seeping into the base, further improving the shell's stain and water resistance. These synergistic structural details complement each other in addressing existing issues such as insufficient shell strength, cumbersome installation, and poor waterproofing and stain resistance, making it more suitable for the long-term use of outdoor streetlights. During installation, the outer shell body 1 is detachably connected to the lamp post through the connecting hole of the connecting part 6, the positioning hole of the base 2 is used for pre-positioning, the lamp body is installed through the mounting hole 4 of the reinforcing rib 3, and the inner mounting column of the inner wall of the receiving cavity 5 is used to fix electrical components. The overall structure is stable and has excellent performance.

[0020] In practical use, this device also requires the use of existing technical components such as lamp body wiring terminals, waterproof sealing strips, metal clamps, insulating gaskets, and dustproof mesh covers. The main body of the outer shell is made of a composite material of glass fiber reinforced ABS and nitrile rubber, which has both good elasticity and sufficient structural strength. The outer surface anti-corrosion coating is made of polytetrafluoroethylene. The lamp body wiring terminals are installed in the reserved slots in the inner wall of the housing cavity and are electrically connected to the external power supply and lamp body through wires. The waterproof sealing strip is attached to the contact surface between the edge of the housing cavity opening and the sealing cover to form a double waterproof barrier. The metal clamp is fitted at the connection point between the connection part and the lamp pole and is tightened with bolts to enhance the overall connection stability. The insulating gasket is placed between the reinforcing rib mounting hole and the fastening bolt to prevent the metal bolt and the lamp body bracket from conducting electricity directly. The dustproof mesh cover is installed at the ventilation hole on the side of the housing cavity through a snap-fit ​​structure to prevent external dust from entering the cavity and affecting the heat dissipation of electrical components. These existing technical devices are compatible with the structural design of this device and together improve the electrical safety, installation firmness and dustproof heat dissipation effect of the street light housing, ensuring that the entire street light system operates stably and reliably in complex outdoor environments.

[0021] Specifically, during installation, this solution involves first using an existing electric drilling machine to drill through holes at the preset installation height of the lamp post that match the connection holes of the connecting part. Then, the positioning hole at the end of the base furthest from the receiving cavity is aligned with the positioning pin on the lamp body bracket and inserted to complete the initial alignment. Next, stainless steel fastening bolts with spring washers are passed through the reinforcing rib mounting holes and the through holes of the lamp body bracket. A torque wrench is used to tighten the nuts to the preset torque value to achieve a stable connection between the lamp body and the base. When installing electrical components inside the receiving cavity, nylon cable ties are used to fix the wire harness in the reserved slots between the inner mounting posts. Before installing the sealing cover, silicone sealant is applied to its edges and pressed down. After fitting the cavity opening, use an existing handheld pressure testing device to inject 0.2 MPa of air pressure into the gap between the lamp body and the base through the test interface on the inside of the base's edge. Maintain this pressure for 5 minutes and observe the pressure gauge reading to confirm there is no leakage, thus completing the waterproof test. Finally, fasten the dustproof mesh cover to the ventilation hole on the side of the cavity using plastic clips. After turning on the street light power, use an infrared thermometer to monitor the internal temperature of the cavity to ensure normal heat dissipation of electrical components. The entire implementation process, through the cooperation of existing processing tools and assembly technology, enables this device to form a completely compatible installation system with existing street light system components, ensuring the standardization of each operation and the reliability of the final use.

[0022] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. An impact-resistant street light housing, characterized by, Includes an integrally molded outer shell body (1); The outer shell body (1) includes a long strip plate-shaped base (2). The upper surface of the base (2) is provided with several reinforcing ribs (3). Each reinforcing rib (3) is arranged parallel to each other along the length direction of the base (2), and each reinforcing rib (3) is provided with mounting holes (4) that penetrate its thickness. One end of the base (2) is integrally connected to a receiving cavity (5), which is a box structure with a closed top and an opening facing the base (2). The outer wall of the receiving cavity (5) away from the base (2) is provided with a horizontally extending connecting part (6), which is vertically connected to the outer wall of the receiving cavity (5); the outer shell body (1) is made of composite material, and its outer surface and inner surface are both smooth curved surfaces.

2. An impact-resistant street light housing as defined in claim 1, wherein, The connecting part (6) is a rectangular plate structure with two connecting holes that penetrate its thickness. The two connecting holes are symmetrically distributed along the length of the connecting part (6).

3. An impact-resistant street light housing as defined in claim 1, wherein, The top of the cavity (5) is an upwardly convex arc-shaped surface, and the two side walls of the cavity (5) are arc-shaped walls that are concave inward. The bottom ends of the two side walls are smoothly connected to the two side edges of the base (2).

4. An impact-resistant street light housing as defined in claim 1, wherein, The base (2) has an upwardly extending guard edge on its edge. The guard edge is arranged around the three edges of the base (2) and has a height of 5-8mm. The top of the guard edge has a rounded corner structure.

5. An impact-resistant street light housing as defined in claim 1, wherein, The cross-section of the reinforcing rib (3) is an isosceles trapezoid, with the top width being smaller than the bottom width, and the height of each reinforcing rib (3) gradually decreases from one end closer to the receiving cavity (5) to the other end.

6. An impact-resistant street light housing as defined in claim 1, wherein, The inner wall of the receiving cavity (5) is provided with four internal mounting posts, which are located at the four corners of the inner wall of the receiving cavity (5). Each internal mounting post extends along the depth direction of the receiving cavity (5) and has an internal threaded hole at its end.

7. The impact-resistant street light housing according to claim 1, characterized in that, The outer surface of the outer shell body (1) is covered with a coating with a thickness of 0.1-0.3 mm, and the edge of the coating is flush with the edge of the outer shell body (1).

8. The impact-resistant street light housing according to claim 1, characterized in that, The base (2) is provided with two positioning holes at the end away from the receiving cavity (5). The two positioning holes are symmetrically distributed along the width direction of the base (2), and the axis of the positioning holes is perpendicular to the upper surface of the base (2).

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