Intelligent street lamp with replaceable lamp holder
By designing a quick-change mechanism and electrical connection module, the smart street light head can be easily replaced, solving the problems of complex operation and inconvenient maintenance in existing technologies, improving replacement efficiency and safety, and enhancing the protective performance and service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-14
AI Technical Summary
The replacement process for existing smart streetlights is complex, requires specialized tools, and is limited by space, making it difficult to meet the needs of efficient maintenance.
The quick-change mechanism, including a mounting base, a rotating latch, and a limit assembly, combined with an electrical connection module and a protective cover, enables convenient installation and removal of the lamp holder assembly. The electrical connection requires no additional tools, and the protective cover provides equipment protection.
It significantly improves the efficiency and safety of lamp replacement, reduces maintenance costs and time, and balances the protective performance and service life of the equipment.
Smart Images

Figure CN224498366U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smart lighting technology, and in particular to a smart street light with an easily replaceable lamp head. Background Technology
[0002] In urban road lighting systems, smart streetlights serve as crucial infrastructure, and the performance and maintenance efficiency of their lamp heads directly impact the overall lighting effect. For smart streetlights, the lamp heads not only need to meet basic lighting requirements but also possess intelligent functions to adapt to diverse application scenarios. This places higher demands on the design and installation methods of the lamp heads.
[0003] Because smart streetlights are exposed to the outdoor environment for extended periods, the lamp heads are prone to replacement due to aging, damage, or technological upgrades. However, existing smart streetlight designs mostly employ fixed connection structures, and disassembling the lamp head from the pole typically requires specialized tools and complex operations, increasing maintenance time and manpower costs. Furthermore, in practical applications, lamp head replacement is often limited by space constraints or installation height, further reducing maintenance convenience. Therefore, existing smart streetlight designs have certain limitations in lamp head replacement, failing to meet the demands for efficient maintenance. Utility Model Content
[0004] The purpose of this utility model is to provide a smart street light with an easily replaceable lamp head, thus solving the problems mentioned in the background art.
[0005] This utility model is implemented as follows: a smart street light with an easily replaceable lamp head includes a lamp pole, a lamp head assembly, and a quick-change mechanism. The top of the lamp pole is provided with a horizontal mounting plate, and the horizontal mounting plate has multiple evenly distributed positioning holes. The lamp head assembly is connected to the horizontal mounting plate through the quick-change mechanism, which includes a fixing seat, a rotary lock, and a limiting component.
[0006] The mounting base is fixedly connected to the bottom of the lamp head assembly. The bottom surface of the mounting base is provided with multiple vertically downward inserts. The number of inserts is the same as the number of positioning holes on the horizontal mounting plate and their positions correspond. The outer wall of the insert is provided with a guide groove along the axial direction. The rotary lock is rotatably disposed on the outside of the mounting base. The inner wall of the rotary lock is provided with multiple protruding locking blocks. The number and position of the locking blocks correspond one-to-one with the inserts. The end of the locking blocks is provided with locking teeth that cooperate with the guide groove.
[0007] The limiting component includes an elastic element and a limiting pin. One end of the elastic element is fixedly connected to the inner wall of the rotary lock, and the other end is fixedly connected to the limiting pin. The end of the limiting pin has an arc-shaped structure, and a limiting groove that mates with the limiting pin is provided on the horizontal mounting plate. When the rotary lock rotates to the locking position, the limiting pin is inserted into the limiting groove under the action of the elastic element, thereby restricting the rotational movement of the rotary lock.
[0008] The lamp holder assembly also includes an electrical connection module, which includes a plug terminal located at the bottom of the lamp holder assembly and a socket terminal located on a horizontal mounting plate. The plug terminal and the socket terminal are positioned correspondingly. The end of the plug terminal is provided with a conductive contact piece, and the inside of the socket terminal is provided with an elastic conductive piece. A stable electrical connection is formed after the conductive contact piece contacts the elastic conductive piece.
[0009] The top of the lamp post is also equipped with a protective cover. The inner wall of the protective cover is equipped with an annular slide rail. The outer edge of the horizontal mounting plate is equipped with a slider that cooperates with the annular slide rail. The protective cover can be rotatably installed on the top of the lamp post through the cooperation of the slider and the annular slide rail. The top of the protective cover is equipped with a transparent observation window. A light shield is fixedly connected to the bottom of the transparent observation window. The edge of the light shield is equipped with a sealing strip. The sealing strip is tightly fitted to the inner wall of the protective cover.
[0010] Preferably, the outer wall of the fixing base is provided with anti-slip texture, the surface of the anti-slip texture is coated with a wear-resistant coating, and an operating handle is provided on the outer side of the rotary lock, the surface of the operating handle is provided with anti-slip protrusions;
[0011] Preferably, the end of the insertion rod is provided with a tapered guide head, the surface of the tapered guide head is polished, the depth of the guide groove gradually decreases from the middle of the insertion rod to both ends, and the inner wall of the guide groove is provided with a lubricating coating.
[0012] Preferably, the arc-shaped end of the limiting pin is provided with a magnetic material layer, and the inner wall of the limiting groove is provided with a metal sensing sheet that cooperates with the magnetic material layer. The metal sensing sheet is connected to the control circuit inside the lamp post and is used to detect whether the limiting pin is fully inserted into the limiting groove.
[0013] Preferably, the outer wall of the plug terminal is provided with an insulating protective layer, the thickness of which is 0.5mm to 1mm, and the end of the plug terminal is provided with an elastic sealing ring, which is tightly fitted to the inner wall of the socket terminal.
[0014] Preferably, the inner wall of the protective cover is provided with a plurality of heat dissipation fins, which are evenly distributed along the axial direction of the protective cover, and the surface of the heat dissipation fins is provided with a reflective coating, the reflectivity of which is greater than 90%.
[0015] Preferably, the transparent observation window is made of high-strength tempered glass, and the outer surface of the transparent observation window is provided with an anti-ultraviolet coating with a thickness of 0.2mm to 0.5mm.
[0016] The present invention provides a smart street light with an easily replaceable lamp holder, the advantages of which are:
[0017] This device features a quick-change mechanism that allows for convenient and rapid installation and removal of the lamp head assembly. Specifically, the insertion rod on the mounting base engages with the positioning hole on the horizontal mounting plate, and the rotation of the rotary lock causes the locking teeth of the locking block to engage in the guide groove, thereby securing the lamp head assembly. Simultaneously, the limiting pin in the limiting assembly is inserted into the limiting groove under the action of the elastic element, preventing the rotary lock from rotating back and ensuring the stability of the lamp head assembly.
[0018] In addition, the design of the electrical connection module further enhances the convenience of lamp holder replacement. The mating of the plug terminals and socket terminals can complete the electrical connection without additional tools, and the contact between the conductive contact and the elastic conductive sheet ensures the reliability of the electrical connection.
[0019] The protective cover design effectively protects the lamp head assembly and horizontal mounting plate, preventing external environmental corrosion of the equipment. The combination of the circular slide rail and slider allows the protective cover to rotate flexibly, facilitating operation by maintenance personnel. The combination of the transparent observation window and the light shield not only provides good observation conditions but also reduces the interference of external light on the lamp head assembly.
[0020] In summary, this utility model solves the problems of complex operation and inconvenient maintenance in the replacement of lamp heads in existing smart streetlights by the synergistic effect of the quick replacement mechanism, electrical connection module and protective cover, which significantly improves the efficiency and safety of lamp head replacement, while taking into account the protective performance and service life of the equipment. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a partially enlarged view of the present invention;
[0023] Figure 3 A schematic diagram of the quick-change mechanism.
[0024] The attached diagram is labeled as follows: 1. Lamp post; 2. Lamp head assembly; 3. Quick change mechanism; 4. Horizontal mounting plate; 5. Fixing base; 6. Rotary lock; 7. Limiting assembly; 8. Insert rod; 9. Guide groove; 10. Locking block; 11. Limiting pin; 12. Plug-in terminal; 13. Socket terminal; 14. Protective cover; 15. Transparent observation window. Detailed Implementation
[0025] This utility model provides a smart street light with an easily replaceable lamp head, the structure of which and its working principle are described below. Figure 1As shown, the smart street light includes a light pole 1, a lamp head assembly 2, a quick-change mechanism 3, a horizontal mounting plate 4, and a protective cover 14. The light pole 1 is a vertically arranged cylindrical component, with a horizontal mounting plate 4 fixedly connected to its top. The horizontal mounting plate 4 has multiple evenly distributed positioning holes. The lamp head assembly 2 is connected to the horizontal mounting plate 4 via the quick-change mechanism 3, while the protective cover 14 covers the outside of the lamp head assembly 2 and is rotatably mounted on the top of the light pole 1 through the cooperation of a slider and a ring-shaped slide rail.
[0026] The quick-change mechanism 3 is the core component that enables convenient replacement of the lamp holder assembly 2. Its specific structure is as follows: Figure 2 As shown. The quick-change mechanism 3 includes a fixed base 5, a rotary latch 6, and a limiting assembly 7. The fixed base 5 is fixedly connected to the bottom of the lamp holder assembly 2, and its bottom surface is provided with multiple vertically downward inserts 8. The number and position of the inserts 8 correspond one-to-one with the positioning holes on the horizontal mounting plate 4. The outer wall of the insert 8 is provided with a guide groove 9 along the axial direction. The depth of the guide groove 9 gradually decreases from the middle of the insert 8 to both ends, and the inner wall is coated with a lubricating coating to reduce friction. The rotary latch 6 is rotatably disposed on the outside of the fixed base 5. Its inner wall is provided with multiple protruding locking blocks 10. The number and position of the locking blocks 10 correspond one-to-one with the inserts 8. The end of the locking block 10 is provided with locking teeth, which can be embedded in the guide grooves 9 of the insert 8, thereby realizing the locking connection between the fixed base 5 and the horizontal mounting plate 4.
[0027] The limiting component 7 is used to prevent the rotary lock 6 from rotating after locking. It consists of an elastic element and a limiting pin 11. One end of the elastic element is fixedly connected to the inner wall of the rotary lock 6, and the other end is fixedly connected to the limiting pin 11. The end of the limiting pin 11 has an arc-shaped structure. A limiting groove that mates with the limiting pin 11 is provided on the horizontal mounting plate 4. When the rotary lock 6 rotates to the locked position, the limiting pin 11 is inserted into the limiting groove under the action of the elastic element, thereby limiting the rotational movement of the rotary lock 6. Furthermore, a magnetic material layer is provided on the arc-shaped end of the limiting pin 11, and a metal sensing plate is provided on the inner wall of the limiting groove. The metal sensing plate is connected to the control circuit inside the lamp post 1 and is used to detect whether the limiting pin 11 is fully inserted into the limiting groove.
[0028] Lamp holder assembly 2 also includes an electrical connection module, the specific structure of which is as follows: Figure 3As shown. The electrical connection module includes a plug terminal 12 and a socket terminal 13. The plug terminal 12 is located at the bottom of the lamp holder assembly 2, and the socket terminal 13 is located on the horizontal mounting plate 4, with their positions corresponding to each other. The end of the plug terminal 12 is provided with a conductive contact, and the interior of the socket terminal 13 is provided with an elastic conductive sheet. A stable electrical connection is formed when the conductive contact and the elastic conductive sheet come into contact. The outer wall of the plug terminal 12 is provided with an insulating protective layer with a thickness of 0.5mm to 1mm, and an elastic sealing ring is also provided at its end. The elastic sealing ring fits tightly against the inner wall of the socket terminal 13 to ensure the reliability of the electrical connection and waterproof performance.
[0029] The design of the protective cover 14 further enhances the protective performance of the equipment. The inner wall of the protective cover 14 is equipped with an annular slide rail, and the outer edge of the horizontal mounting plate 4 is equipped with a slider that mates with the annular slide rail. The protective cover 14 is rotatably mounted on the top of the lamp post 1 through the cooperation of the slider and the annular slide rail. A transparent observation window 15 is provided at the top of the protective cover 14. The transparent observation window 15 is made of high-strength tempered glass, and its outer surface is coated with a UV-resistant coating with a thickness of 0.2mm to 0.5mm. A light-shielding plate is fixedly connected to the bottom of the transparent observation window 15. The edge of the light-shielding plate is equipped with a sealing strip, which fits tightly against the inner wall of the protective cover 14 to prevent external light and dust from entering the interior of the protective cover 14. In addition, the inner wall of the protective cover 14 is also equipped with multiple heat dissipation fins, which are evenly distributed along the axial direction of the protective cover 14. Their surfaces are coated with a reflective coating with a reflectivity greater than 90% to improve heat dissipation efficiency and reduce light pollution.
[0030] In practical applications, the replacement process for lamp head assembly 2 is as follows: First, the operator opens the protective cover 14 by rotating it, exposing lamp head assembly 2 and quick replacement mechanism 3. Next, the operator holds the operating handle on the outside of the rotary lock 6 and rotates the rotary lock 6 counterclockwise, causing the locking teeth of the locking block 10 to disengage from the guide groove 9 of the insert rod 8. At this time, the limiting pin 11, under the action of the elastic element, exits from the limiting groove, releasing the restriction on the rotary lock 6. Subsequently, the operator lifts the lamp head assembly 2 upwards, causing the insert rod 8 on the bottom surface of the fixing base 5 to be pulled out from the positioning hole of the horizontal mounting plate 4, completing the disassembly of the lamp head assembly 2. When installing a new lamp head assembly 2, the operator aligns the insert rod 8 on the bottom surface of the fixing base 5 with the positioning hole on the horizontal mounting plate 4 and inserts it, then rotates the rotary lock 6 clockwise, causing the locking teeth of the locking block 10 to engage in the guide groove 9 of the insert rod 8, while the limiting pin 11 is inserted into the limiting groove, completing the fixing of the lamp head assembly 2. Throughout the process, the plug terminal 12 and the socket terminal 13 automatically complete the electrical connection without the need for additional tools or complicated operations.
[0031] The outer wall of the fixing base 5 is provided with anti-slip texture, and the surface of the anti-slip texture is coated with a wear-resistant coating to improve friction and durability during operation. An operating handle is provided on the outer side of the rotary lock 6, and the surface of the operating handle is provided with anti-slip protrusions to facilitate the operator's application of force. The end of the insertion rod 8 is provided with a tapered guide head, the surface of which is polished to facilitate quick insertion of the insertion rod 8 into the positioning hole. The depth of the guide groove 9 gradually decreases from the middle of the insertion rod 8 towards both ends, and the inner wall is provided with a lubricating coating to reduce the friction between the locking block 10 and the guide groove 9 during locking.
[0032] The above structural design makes the replacement of the lamp head assembly 2 simple and quick, requiring no special tools. Meanwhile, the design of the electrical connection module and protective cover 14 further enhances the reliability and protection performance of the equipment, meeting the needs of smart streetlights exposed to outdoor environments for extended periods. To better enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the implementation principle of this utility model is provided in conjunction with specific application scenarios.
[0033] In the routine maintenance of urban road lighting systems, the lamp head assembly 2 of smart streetlights needs to be replaced or upgraded periodically. For example, during a maintenance task, the operator discovered that the lamp head assembly 2 of a certain smart streetlight had aged due to long-term exposure to harsh environments, and needed to be replaced with a new lamp head assembly 2 in a timely manner to ensure the lighting effect. At this time, the design advantages of this utility model are demonstrated.
[0034] First, upon arrival at the site, the operator opens the protective cover 14 by rotating it. The annular slide rail on the inner wall of the protective cover 14 engages with the slider on the outer edge of the horizontal mounting plate 4, allowing the protective cover 14 to rotate smoothly and open, exposing the lamp head assembly 2 and the quick-change mechanism 3. The transparent observation window 15 allows the operator to pre-inspect the condition of the lamp head assembly 2 without fully opening the protective cover 14, thereby improving maintenance efficiency. The design of the light shield and its sealing strip effectively prevents external light and dust from entering the interior of the protective cover 14, further protecting the lamp head assembly 2 and related electrical components.
[0035] Next, the operator holds the operating handle on the outside of the rotary lock 6 and rotates the rotary lock 6 counterclockwise. Because the end of the locking block 10 on the inner wall of the rotary lock 6 is equipped with locking teeth, which engage with the guide groove 9 on the outer wall of the insert rod 8, the locking teeth of the locking block 10 gradually disengage from the guide groove 9 during rotation. Simultaneously, the limiting pin 11 in the limiting assembly 7, under the action of the elastic element, exits from the limiting groove on the horizontal mounting plate 4, releasing the restriction on the rotary lock 6. This process requires no special tools and can be completed manually, significantly reducing maintenance time and manpower costs.
[0036] Subsequently, the operator lifts the lamp holder assembly 2 upwards, allowing the insertion rod 8 on the bottom surface of the mounting base 5 to be pulled out of the positioning hole on the horizontal mounting plate 4, thus completing the disassembly of the lamp holder assembly 2. During this process, the plug terminal 12 and the socket terminal 13 automatically separate without requiring additional disconnection of the electrical connection. The insulating protective layer and elastic sealing ring on the outer wall of the plug terminal 12 ensure electrical safety and waterproof performance during the separation process, preventing short circuits or damage caused by environmental factors.
[0037] When installing the new lamp holder assembly 2, the operator inserts the rod 8 on the bottom surface of the mounting base 5 into the positioning hole on the horizontal mounting plate 4. The tapered guide head at the end of the rod 8 is polished for quick insertion into the positioning hole, while the lubricating coating on the inner wall of the guide groove 9 reduces friction, allowing the rod 8 to smoothly enter the positioning hole. The operator then rotates the rotating latch 6 clockwise, causing the locking teeth of the locking block 10 to engage in the guide groove 9 of the rod 8, thus achieving a locking connection between the mounting base 5 and the horizontal mounting plate 4. Simultaneously, the limiting pin 11 in the limiting assembly 7, under the action of the elastic element, inserts into the limiting groove, restricting the rotational movement of the rotating latch 6 and ensuring the stability of the lamp holder assembly 2. The magnetic material layer at the arc-shaped end of the limiting pin 11 cooperates with the metal sensing plate on the inner wall of the limiting groove. The control circuit inside the lamp post 1 detects whether the limiting pin 11 is fully inserted into the limiting groove, further ensuring the reliability of the locking state.
[0038] Throughout the replacement process, the design of the electrical connection module played a crucial role. When the lamp holder assembly 2 is installed, the plug terminal 12 and the socket terminal 13 automatically establish an electrical connection. The conductive contact at the end of the plug terminal 12 forms a stable electrical connection after contacting the elastic conductive piece inside the socket terminal 13, requiring no additional tools or complex operations. The insulating protective layer on the outer wall of the plug terminal 12 and the elastic sealing ring at its end ensure the reliability of the electrical connection and its waterproof performance, meeting the needs of smart streetlights exposed to outdoor environments for extended periods.
[0039] Finally, the operator rotates the protective cover 14 to close it, covering the lamp head assembly 2 and returning it to its original position. The heat dissipation fins on the inner wall of the protective cover 14 are evenly distributed along the axial direction, and the high-reflectivity reflective coating on the surface improves heat dissipation efficiency while reducing light pollution. The transparent observation window 15 is made of high-strength tempered glass and coated with an anti-ultraviolet coating, which ensures both convenient observation and extended service life.
[0040] Through the above steps, this utility model enables rapid replacement of the lamp head assembly 2, solving the problems of complex operation and inconvenient maintenance in the lamp head replacement process of existing smart streetlights. The design of the rapid replacement mechanism 3, combined with the functions of the electrical connection module and the protective cover 14, significantly improves the efficiency and safety of lamp head replacement, while also taking into account the protective performance and service life of the equipment.
[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A smart street light with an easily replaceable lamp holder, comprising: The light pole (1) is characterized in that it further includes: The lamp head assembly (2) is connected to the horizontal mounting plate (4) provided at the top of the lamp post (1) via a quick-change mechanism (3); The quick-change mechanism (3) includes a fixed base (5), a rotary latch (6) and a limiting component (7). The fixed base (5) is fixedly connected to the bottom of the lamp head assembly (2). The bottom surface of the fixed base (5) is provided with multiple vertically downward insert rods (8). The outer wall of the insert rod (8) is provided with a guide groove (9) along the axial direction. The rotary latch (6) is rotatably set on the outside of the fixed base (5). The inner wall of the rotary latch (6) is provided with multiple protruding locking blocks (10). The end of the locking block (10) is provided with locking teeth that cooperate with the guide groove (9). The limiting component (7) includes an elastic element and a limiting pin (11). One end of the elastic element is fixedly connected to the inner wall of the rotary latch (6), and the other end is fixedly connected to the limiting pin (11). The end of the limiting pin (11) is an arc-shaped structure. A limiting groove that cooperates with the limiting pin (11) is provided on the horizontal mounting plate (4). The electrical connection module includes a plug terminal (12) disposed at the bottom of the lamp holder assembly (2) and a socket terminal (13) disposed on the horizontal mounting plate (4). The end of the plug terminal (12) is provided with a conductive contact, and the interior of the socket terminal (13) is provided with an elastic conductive sheet.
2. The smart street light with an easily replaceable lamp holder according to claim 1, characterized in that, The top of the lamp post (1) is also provided with a protective cover (14), the inner wall of the protective cover (14) is provided with an annular slide rail, and the outer edge of the horizontal mounting plate (4) is provided with a slider that cooperates with the annular slide rail. The protective cover (14) can be rotatably installed on the top of the lamp post (1) through the cooperation of the slider and the annular slide rail.
3. A smart street light with an easily replaceable lamp holder according to claim 2, characterized in that, The top of the protective cover (14) is provided with a transparent observation window (15), and a light shield is fixedly connected below the transparent observation window (15). A sealing strip is provided on the edge of the light shield, and the sealing strip is tightly fitted to the inner wall of the protective cover (14).
4. A smart street light with an easily replaceable lamp holder according to claim 1, characterized in that, The outer wall of the fixed base (5) is provided with anti-slip texture, and the surface of the anti-slip texture is coated with a wear-resistant coating. The outer side of the rotary lock (6) is provided with an operating handle, and the surface of the operating handle is provided with anti-slip protrusions.
5. A smart street light with an easily replaceable lamp holder according to claim 1, characterized in that, The end of the insertion rod (8) is provided with a tapered guide head. The surface of the tapered guide head is polished. The depth of the guide groove (9) gradually decreases from the middle of the insertion rod (8) to both ends. The inner wall of the guide groove (9) is provided with a lubricating coating.
6. A smart street light with an easily replaceable lamp holder according to claim 1, characterized in that, The arc-shaped end of the limiting pin (11) is provided with a magnetic material layer, and the inner wall of the limiting groove is provided with a metal sensing sheet that cooperates with the magnetic material layer. The metal sensing sheet is connected to the control circuit inside the lamp post (1).
7. A smart street light with an easily replaceable lamp holder according to claim 1, characterized in that, The outer wall of the plug terminal (12) is provided with an insulating protective layer with a thickness of 0.5 mm to 1 mm, and the end of the plug terminal (12) is provided with an elastic sealing ring, which is tightly fitted to the inner wall of the socket terminal (13).