Street lamp waterproof structure
By combining a "C"-shaped glass strip with a hollow silicone waterproof strip, the design solves the problems of appearance, cost, and glass damage in the waterproof structure of streetlights, improving waterproof performance and the glass's impact resistance, making it suitable for various outdoor environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN HAOMING METAL PROD CO LTD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-06-19
AI Technical Summary
Existing waterproof structures for streetlights suffer from poor appearance, high cost, low waterproof reliability, and easy glass breakage, especially under extreme conditions.
The glass is fixed with set screws using a C-shaped glass strip, combined with a hollow silicone waterproof strip and a sealing gasket to achieve uniform stress and multiple seals. The hidden screw design enhances aesthetics and waterproof rating.
It achieves a narrow bezel design, reduces production costs, improves waterproof rating and glass impact resistance, extends service life and reduces maintenance frequency.
Smart Images
Figure CN224381475U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of street lighting equipment technology, and in particular to a waterproof street lighting structure suitable for outdoor environments. It can be widely used in street lighting in municipal roads, residential areas, parks and other scenarios, and can maintain good sealing performance in harsh environments such as rain and humidity. Background Technology
[0002] Outdoor streetlights are exposed to complex environments such as rain, dust, and temperature fluctuations for extended periods. Waterproofing is a core factor affecting their lifespan and safe operation. Currently, the waterproofing structures of existing streetlights mainly suffer from the following problems:
[0003] Aesthetics and waterproofing conflict: Most streetlights use a "screw-through-the-lamp-body" fixing method to connect the glass to the lamp body. To prevent water seepage at the screws, a wide frame (usually ≥8mm wide) needs to be reserved at the edge of the lamp body to arrange a sealing structure. The wide frame seriously affects the overall aesthetics of the streetlight. At the same time, the through-the-lamp screws are prone to water seepage due to the aging of the sealant, which can damage the electrical components inside the lamp.
[0004] Poor cost and versatility: Some high-end streetlights adopt an "integrated frame" structure. The frame is a customized single piece, requiring the development of special molds for streetlights of different sizes. The initial mold investment cost is high (the cost of a single mold usually exceeds 10,000 yuan); moreover, streetlights of different specifications in the same series cannot share the same frame, further increasing production and inventory costs.
[0005] Low waterproof reliability: Low-cost streetlights often use a "small snap-fit" structure to fix the glass. The snap-fit is a small, dispersed component with a small contact area with the glass, resulting in uneven stress on the glass. With long-term use, the snap-fit is prone to loosening and the sealing performance will decline. At the same time, the seal between the small snap-fit and the glass relies on a single rubber strip. In low or high temperature environments, the rubber strip is prone to deformation. The waterproof rating can only reach IP54, which cannot meet the needs of extreme scenarios such as heavy rain and high-pressure water spray.
[0006] Glass is prone to cracking: In existing structures, the stress points of the glass are concentrated at screws or buckles. Excessive local stress (especially when temperature changes cause the glass to expand and contract) can easily cause the glass to crack. Most street light glass has an impact resistance rating of only IK06, making it easy to break when hit by external forces (such as tree branches or stones), resulting in high maintenance costs.
[0007] Therefore, there is an urgent need for a waterproof street light structure that combines aesthetic appeal, low cost, reliable waterproofing, and strong glass resistance to damage, in order to overcome the shortcomings of existing technologies. Utility Model Content
[0008] This utility model aims to solve the problems of poor appearance (wide frame, exposed screws), high cost (custom molds), low waterproof reliability (low IP rating, easy water leakage), and easy glass cracking in existing street light waterproof structures (uneven stress, weak impact resistance).
[0009] This utility model provides a waterproof structure for a street light, including a lamp body, glass, and a pressure strip structure for fixing the glass. The pressure strip structure includes at least one glass pressure strip with a "C" shaped cross-section. The glass pressure strip is pushed upward by a set screw that rotates in the opposite direction, thereby pressing the edge of the glass and achieving a reliable seal.
[0010] Furthermore, a hollow silicone waterproof strip is provided between the lamp body and the inner surface of the glass. The waterproof strip has multiple raised ribs that fit tightly against the glass to form a sealed barrier.
[0011] Furthermore, the set screw is an internal hexagon screw with a small mounting hole diameter, and the screw is completely internal with no exposed parts, which is both aesthetically pleasing and avoids the risk of rust and water seepage.
[0012] Furthermore, the glass strip is relatively narrow, which allows for a narrow bezel design and enhances the overall aesthetics.
[0013] Furthermore, the glass strip is provided with through holes for an Allen wrench to pass through, facilitating installation and tightening operations.
[0014] Furthermore, a sealing gasket is provided on the contact surface between the glass strip and the glass to further enhance the sealing effect.
[0015] Furthermore, the set screws are arranged at large intervals along the length of the lamp body, which effectively reduces the total number of screws while ensuring tightening stability.
[0016] Furthermore, the length of the glass strip can be cut and adjusted according to the actual length of the lamp body, which has good versatility and adaptability, reducing production costs and inventory pressure.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] Superior appearance: 5mm narrow bezel + hidden screws, no exposed parts, meeting the minimalist design requirements of modern streetlights, and can be adapted to various landscape environments.
[0019] Lower cost: The pressure strip is produced using a general process (extrusion / sheet metal bending), and the length can be cut. No custom molds are required for the same series of street lights, reducing mold investment costs by more than 80%; the number of screws is reduced by 50%-60%, and installation efficiency is improved by 30%.
[0020] More reliable waterproofing: The "triple seal" of hollow silicone waterproof strip + three convex ribs + sealing gasket achieves a waterproof rating of IP66, which can withstand extreme weather such as heavy rain and typhoons; the overall pressure strip structure is less affected by the rigidity of glass, and there is no risk of loosening of the seal after long-term use.
[0021] More durable glass: The "C"-shaped pressure strip ensures uniform stress on the glass, reducing local stress by more than 60% and decreasing the glass breakage rate by 90%; tempered glass with IK08 impact resistance rating significantly improves its resistance to breakage and extends the maintenance cycle by 2-3 years. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 , 2 This is a schematic diagram of the overall lamp body provided in an embodiment of the present utility model;
[0024] Figure 3 This is a cross-sectional structural diagram provided for an embodiment of the present utility model.
[0025] The following are the labeling elements in the figure:
[0026] 1. Lamp body; 2. Glass; 3. Hollow waterproof strip; 4. Set screw; 5. Through hole; 6. Glass retaining strip; 7. Gasket.
[0027] The accompanying drawings have illustrated specific embodiments of the present invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art through reference to specific embodiments. Detailed Implementation
[0028] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0029] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0030] Please see Figures 1-3 As shown, this utility model provides a waterproof street light structure, which mainly includes a lamp body 1, glass 2, and a pressure strip structure. The lamp body 1, as the main supporting structure, is typically made of aluminum alloy or high-strength engineering plastic, possessing good mechanical strength and weather resistance. The lamp body 1 has a groove structure on its edge specifically designed for embedding a hollow silicone waterproof strip 3. The hollow silicone waterproof strip 3 has multiple raised ribs, which can form multiple sealing interfaces with the glass 2 under pressure, significantly improving waterproof reliability. The glass 2 is usually made of tempered glass, and its thickness can be adjusted according to actual application requirements. The edges are ground to reduce stress concentration, and after installation, it is flush with the appearance of the lamp body 1, achieving a visually narrow bezel effect.
[0031] like Figure 3 As shown, the pressure strip structure, as a key component for fixing the glass 2, uses a C-shaped glass pressure strip 6, which can be manufactured through extrusion molding or sheet metal bending processes, possessing good rigidity and adaptability. The width of the glass pressure strip 6 is controlled within 5 mm, minimizing the visual width while achieving the clamping function, meeting the aesthetic requirements of modern lighting fixtures. An elastic sealing gasket 7 can be installed on the inner side of the glass pressure strip 6 in contact with the glass 2 to further enhance the local sealing effect. The glass pressure strip 6 has a through hole 5 for a hexagonal wrench to operate the set screw 4. The set screw 4 adopts an internal hexagonal design and is completely built into the structure of the lamp body 1. Its mounting hole diameter is less than 3 mm, which not only avoids the aesthetic impact of exposed screws but also eliminates the potential water leakage hazard caused by screws penetrating the lamp body 1. The set screws 4 are arranged at a certain interval along the length of the lamp body 1, which is usually not less than one-quarter of the length of the lamp body 1. This ensures uniform distribution of clamping force while effectively reducing the number of screws used, thus lowering material and assembly costs.
[0032] During assembly, first, embed the hollow silicone waterproof strip 3 into the pre-drilled groove in the lamp body 1, ensuring it is installed flat, without twisting or loosening. Then, gently place the glass 2 onto the hollow silicone waterproof strip 3, adjusting its position so that its edge aligns with the outline of the lamp body 1. Next, place the pre-cut glass strip 6 to the appropriate length along the edge of the glass 2, with the "C"-shaped opening of the glass strip 6 facing the lamp body 1. Using an Allen wrench, rotate the set screw 4 counterclockwise through the through hole 5 on the glass strip 6, causing the set screw 4 to move upwards and lift the glass strip 6, thus tightening the edge of the glass 2. During installation, follow the alternating tightening sequence from the center outwards to ensure even stress on the glass 2 and avoid damage due to excessive local stress. After installation, a visual inspection and sealing performance test, such as a water spray test, is required to verify that it meets the IP66 waterproof rating.
[0033] The working principle of this structure is based on a combination of mechanical clamping and elastic sealing. When the set screw 4 is rotated counterclockwise, its upward movement pushes the "C"-shaped glass strip 6 to rise, which in turn presses the glass 2 tightly against the surface of the lamp body 1. During this process, the hollow silicone waterproof strip 3 undergoes elastic deformation, and its multiple raised ribs form multiple sealing lines with the glass 2, effectively preventing moisture intrusion. The continuous structure and uniform stress distribution of the glass strip 6 itself also avoid the stress concentration problem of the glass 2 that is easily caused by traditional point-type clamping, greatly reducing the risk of the glass 2 breaking due to thermal expansion and contraction or external impact during use.
[0034] This waterproof structure is not only suitable for conventional municipal road lighting, but also widely applicable to various outdoor environments such as parks, residential landscape lighting, tunnel lighting, and industrial area lighting. Its narrow bezel and concealed set screws significantly enhance the overall aesthetics and environmental integration of the luminaire. Furthermore, the glass retaining strips and set screws used in its construction offer high versatility and adaptability, greatly reducing mold investment and production costs for different product specifications, while also simplifying inventory management. In practical applications, this structure demonstrates excellent durability and reliability, maintaining long-term sealing performance and structural stability in various harsh environments, extending the luminaire's lifespan, and reducing maintenance frequency and costs.
[0035] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the foregoing claims.
[0036] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. Conversely, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. The terms "upper end," "lower end," "left side," "right side," "front end," "rear end," and similar expressions used herein refer to the positional relationship with reference to the accompanying drawings.
[0037] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.
Claims
1. A waterproof structure for a street lamp, comprising a lamp body (1), glass (2), and a pressure strip structure for fixing the glass, characterized in that: The pressure strip structure includes at least one glass pressure strip (6) with a "C" shaped cross section, which is pushed upward by a set screw (4) that rotates in the opposite direction to press the edge of the glass (2).
2. The waterproof structure for a street light according to claim 1, characterized in that: A hollow silicone waterproof strip (3) is provided between the lamp body (1) and the inner surface of the glass (2), and the waterproof strip (3) has at least three protruding ribs that abut against the glass (2).
3. The waterproof structure for a street light according to claim 1, characterized in that: The set screw (4) is an internal hexagon screw with a mounting hole diameter of less than 3 mm, and the set screw (4) is completely internal.
4. The waterproof structure for a street light according to claim 1, characterized in that: The width of the glass strip (6) is less than 5 mm.
5. The waterproof structure for a street light according to claim 1, characterized in that: The glass strip (6) has a through hole (5) for a hex wrench to pass through.
6. The waterproof structure for a street light according to claim 1, characterized in that: A sealing gasket (7) is provided on the contact surface between the glass strip (6) and the glass (2).
7. The waterproof structure for a street light according to claim 1, characterized in that: The set screws (4) are arranged at intervals along the length of the lamp body (1), and the distance between two adjacent set screws (4) is not less than 1 / 4 of the length of the lamp body (1) in order to reduce the total number of set screws (4) and ensure the tightening stability of the glass strip (6).
8. The waterproof structure for a street light according to claim 1, characterized in that: The length of the glass strip (6) can be adjusted by cutting according to the actual length of the lamp body (1).