A traffic signal having modular plug-in functional units
Through modular pluggable structure and electrical connection design, the problems of cumbersome installation and disassembly of traffic signal functional units and unstable electrical connections have been solved, achieving convenient maintenance and efficient operation.
Patent Information
- Application Number
- CN202522402843.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-12
AI Technical Summary
The existing traffic signal controllers have cumbersome installation and disassembly processes, and are inconvenient to maintain and replace, which affects their flexibility and efficiency. In addition, the electrical connection stability is insufficient, which can easily lead to poor contact and affect the normal operation of the equipment.
It adopts a modular plug-in structure, which realizes convenient installation and disassembly of functional units through the sliding connection of T-shaped blocks and T-shaped slots in quick-connect components and the elastic structure of card blocks and card slots. The stability of electrical connection is ensured by the cooperation structure of fixed shell, pins, metal plates and protrusions.
It enables convenient installation and disassembly of functional units, improves the flexibility and efficiency of equipment use, ensures the stability and reliability of electrical connections, and guarantees the continuous operation of the equipment.
Smart Images

Figure CN224934434U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of traffic signal controllers with modular pluggable functional units, specifically a traffic signal controller with modular pluggable functional units. Background Technology
[0002] Traffic signal controllers are core equipment for urban traffic management, used to control the changes in traffic lights at road intersections to ensure the safe and orderly passage of vehicles and pedestrians. They adjust the duration of red and green lights in real time through preset or intelligent algorithms to optimize traffic flow. Modern traffic signal controllers integrate microprocessors, communication modules, and sensors, enabling multi-intersection collaborative control, remote monitoring, and fault alarms. Some models support linkage with navigation systems to dynamically respond to congestion or accidents. Their casings are usually dustproof and waterproof, making them suitable for outdoor environments. As the foundation of intelligent transportation systems, traffic signal controllers play a crucial role in alleviating congestion, reducing accidents, and improving traffic efficiency, and are an indispensable technical support for modern urban traffic management.
[0003] In existing technologies, traffic signal controllers generally suffer from cumbersome installation and disassembly processes. Modules often use fixed connections or complex snap-fit designs, requiring specialized tools and strict procedures, resulting in time-consuming and labor-intensive maintenance. Furthermore, low modularity necessitates complete disassembly for replacing a single faulty unit, increasing downtime and demanding higher skill levels from technicians. In addition, inconsistent interface standards among different manufacturers further limit spare parts interchangeability. These design flaws directly reduce the flexibility of equipment use and increase maintenance costs, especially in emergency repair scenarios, severely impacting the rapid recovery capability of traffic signal systems. Therefore, we need a traffic signal controller with modular, pluggable functional units. Utility Model Content
[0004] The purpose of this utility model is to provide a traffic signal controller with modular pluggable functional units, so as to solve the problems mentioned in the background art of the cumbersome installation and disassembly of the functional units of existing traffic signal controllers, the inconvenience of maintenance and replacement, and the impact on the flexibility and efficiency of use.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a traffic signal controller with a modular pluggable functional unit, comprising an operation box, a door hinged to one side of the operation box, a traffic signal controller fixedly connected inside the operation box, a quick-connect assembly fixedly connected to one side of the traffic signal controller, an interface assembly snapped into the quick-connect assembly, the quick-connect assembly including a socket, the socket being fixed to one side of the traffic signal controller, a T-shaped groove being provided at the top of the socket, a T-shaped block being slidably connected inside the T-shaped groove, a plug being fixedly connected to the bottom of the T-shaped block, a spring being provided inside the plug, a sliding sleeve being movably connected to one side of the spring, a slider being fixedly connected to one side of the sliding sleeve, a sliding rod being slidably connected inside the slider, a locking block being fixedly connected to one side of the sliding sleeve, and a locking groove being snapped into the outer wall of the locking block.
[0006] Preferably, the plug forms a sliding structure through a T-shaped block and a T-shaped groove, and the outer diameter of the T-shaped block matches the inner diameter of the T-shaped groove, and the outer wall of the T-shaped block fits against the inner wall of the T-shaped groove.
[0007] Preferably, the locking block forms an elastic structure with a sliding sleeve and a spring, and one side of the locking block is fixedly connected to one side of the sliding sleeve, and the spring is located on one side of the sliding sleeve.
[0008] Preferably, the socket forms an engaging structure with the card slot and the card block, and the shape of the card slot matches the shape of the card block, and the inner diameter of the card slot matches the outer diameter of the card block.
[0009] Preferably, the interface assembly includes a fixing shell, which is fixed inside the socket. A metal sheet is provided inside the fixing shell, and a protrusion is fixedly connected to one side of the metal sheet. A pin is engaged with the outer wall of the protrusion, and a groove is provided inside the pin.
[0010] Preferably, the pins form an engaging structure with the protrusions via grooves, and the shape of the grooves matches the shape of the protrusions, and the inner diameter of the grooves matches the outer diameter of the protrusions.
[0011] Preferably, the number of metal plates inside the fixing shell is two, and the two metal plates are symmetrically arranged with the vertical line of the pin as the axis of symmetry.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] In the scheme of this application:
[0014] 1. To address the problems of cumbersome installation and disassembly, inconvenient maintenance and replacement of functional units in existing traffic signal controllers, which affect the flexibility and efficiency of use, this application proposes a modular plug-in structure. Specifically, pressing the locking block moves the sliding sleeve and slider, squeezing the spring causes the locking block to align with the slot and insert, while the T-shaped block slides into the T-slot. Once in place, the locking block is released, and the spring rebounds to push the locking block into the slot, completing the secure connection between the plug and socket. This achieves convenient installation and disassembly of the functional units, greatly facilitating equipment maintenance and replacement, and effectively improving the flexibility and efficiency of traffic signal controllers.
[0015] 2. To address the problem of insufficient stability and reliability of electrical connections in existing technologies, which can easily lead to poor contact affecting the normal operation of equipment, this application proposes a mating structure consisting of a fixed housing, pins, metal plates, protrusions, and grooves. Specifically, the pins are inserted into the fixed housing and press against the metal plates. After insertion, the two metal plates spring back to hold the pins in place. Simultaneously, the grooves engage with the protrusions to achieve initial positioning of the pins. This achieves a stable electrical connection between the pins and the metal plates, effectively preventing poor contact caused by loosening, greatly improving the stability and reliability of the electrical connection, and ensuring the continuous and stable operation of the equipment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the socket and plug structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the card block and spring structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the metal sheet and protrusion structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the pin and groove structure of this utility model;
[0021] Figure 6 This is a schematic diagram of the slide bar and slider structure of this utility model.
[0022] In the diagram: 1. Control box; 2. Box door; 3. Signal device; 4. Quick-connect assembly; 401. Socket; 402. T-slot; 403. T-block; 404. Plug; 405. Spring; 406. Sliding sleeve; 407. Sliding block; 408. Sliding rod; 409. Locking block; 410. Locking groove; 5. Interface assembly; 501. Fixing shell; 502. Metal sheet; 503. Protrusion; 504. Pin; 505. Groove. Detailed Implementation
[0023] 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.
[0024] This utility model embodiment provides a traffic signal controller with modular pluggable functional units, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the device includes an operation box 1, with a door 2 hinged to one side. A signal 3 is fixedly connected inside the operation box 1. A quick-connect assembly 4 is fixedly connected to one side of the signal 3. An interface assembly 5 is engaged inside the quick-connect assembly 4. The quick-connect assembly 4 includes a socket 401, which is fixed to one side of the signal 3. A T-shaped groove 402 is provided at the top of the socket 401. A T-shaped block 403 is slidably connected inside the T-shaped groove 402. A plug 404 is fixedly connected to the bottom of the T-shaped block 403. A spring 405 is provided inside the plug 404. A sliding sleeve 406 is movably connected to one side of the spring 405. A slider 407 is fixedly connected to one side of the sliding sleeve 406. A sliding rod 408 is slidably connected inside the slider 407. A locking block 409 is fixedly connected to one side of the sliding sleeve 406. The outer wall has a locking groove 410. First, the plug 404 and the socket 401 are connected. During the connection and installation process, pressing the locking block 409 will cause the locking block 409 to move the sliding sleeve 406, which in turn will move the slider 407. The slider 407 will slide along the sliding rod 408, and the sliding sleeve 406 will compress the spring 405. This will allow the locking block 409 to be aligned with the locking groove 410 and inserted into the locking groove 410. At the same time, the T-shaped block 403 will be aligned with the T-shaped groove 402 and pushed, allowing the T-shaped block 403 to slide into the T-shaped groove 402. When the plug 404 has slid into place, releasing the locking block 409 will cause the spring 405 to rebound, pushing the sliding sleeve 406 and the locking block 409 into the locking groove 410, thus completing the secure connection between the plug 404 and the socket 401.
[0025] Furthermore, such as Figure 2 As shown, the plug 404 forms a sliding structure with the T-shaped block 403 and the T-shaped groove 402. The outer diameter of the T-shaped block 403 matches the inner diameter of the T-shaped groove 402, and the outer wall of the T-shaped block 403 fits against the inner wall of the T-shaped groove 402. With the plug 404, the plug 404 can drive the T-shaped block 403 to move, so that the T-shaped block 403 can be inserted into the T-shaped groove 402 and slide along the T-shaped groove 402.
[0026] Furthermore, such as Figure 3 As shown, the locking block 409 forms an elastic structure with the sliding sleeve 406 and the spring 405. One side of the locking block 409 is fixedly connected to one side of the sliding sleeve 406, and the spring 405 is set on one side of the sliding sleeve 406. By pressing the locking block 409, the locking block 409 can drive the sliding sleeve 406 to move, which can cause the sliding sleeve 406 to squeeze the spring 405. Releasing the locking block 409 can cause the spring 405 to rebound.
[0027] Furthermore, such as Figure 3 and Figure 4 As shown, the socket 401 forms a locking structure with the locking block 409 through the locking groove 410, and the shape of the locking groove 410 matches the shape of the locking block 409, and the inner diameter of the locking groove 410 matches the outer diameter of the locking block 409. Through the locking groove 410, the socket 401 can lock with the locking block 409 by relying on the locking groove 410.
[0028] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the interface assembly 5 includes a fixed housing 501, which is fixed inside the socket 401. A metal sheet 502 is provided inside the fixed housing 501. A protrusion 503 is fixedly connected to one side of the metal sheet 502. A pin 504 is engaged with the outer wall of the protrusion 503. A groove 505 is provided inside the pin 504. The pin 504 is then inserted into the fixed housing 501, which allows the pin 504 to press against the metal sheet 502. After the pin 504 is inserted, the two metal sheets 502 spring back to hold the pin 504. The groove 505 engages with the protrusion 503, so that the pin 504 is initially positioned, ensuring the stability and reliability of the electrical connection.
[0029] Furthermore, such as Figure 4 and Figure 5 As shown, the pin 504 forms a locking structure with the protrusion 503 through the groove 505, and the shape of the groove 505 matches the shape of the protrusion 503, and the inner diameter of the groove 505 matches the outer diameter of the protrusion 503. Through the groove 505, the pin 504 can lock onto the protrusion 503 by relying on the groove 505.
[0030] Furthermore, such as Figure 4As shown, there are two metal plates 502 inside the fixed shell 501, and the two metal plates 502 are symmetrically arranged with the vertical line of the pin 504 as the axis of symmetry. Through the two metal plates 502, the pin 504 can be inserted between the two metal plates 502, and the two metal plates 502 can clamp the pin 504.
[0031] Working principle: First, connect the plug 404 to the socket 401. During the connection and installation process, press the locking block 409, which will cause the sliding sleeve 406 to move. The sliding sleeve 406 will then cause the slider 407 to move, allowing the slider 407 to slide along the sliding rod 408. This will cause the sliding sleeve 406 to compress the spring 405, allowing the locking block 409 to align with the slot 410 and insert into it. Simultaneously, push the T-shaped block 403 against the T-shaped groove 402, allowing the T-shaped block 403 to slide into the T-shaped groove 402. Then, insert the pin 504 into the fixing shell 501, allowing the pin 504 to engage with the metal plate. When pin 504 is inserted, the two metal plates 502 spring back to clamp pin 504. The groove 505 engages with the protrusion 503, thus initially positioning pin 504 and ensuring the stability and reliability of the electrical connection. When plug 404 slides into place, the locking block 409 is released, allowing spring 405 to spring back and push sliding sleeve 406 and locking block 409 into slot 410, thereby completing the stable connection between plug 404 and socket 401. This modular plug-in design makes the installation and disassembly of functional units more convenient, facilitates maintenance and replacement, and improves the flexibility and efficiency of traffic signal controllers.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A traffic signal controller with modular pluggable functional units, comprising an operation box (1), characterized in that: The control box (1) has a hinged door (2) on one side. A signal (3) is fixedly connected inside the control box (1). A quick-connect assembly (4) is fixedly connected to one side of the signal (3). An interface assembly (5) is snapped into the quick-connect assembly (4). The quick-connect assembly (4) includes a socket (401), which is fixed to one side of the signal (3). A T-shaped groove (402) is provided on the top of the socket (401), and a T-shaped block is slidably connected inside the T-shaped groove (402). (403) A plug (404) is fixedly connected to the bottom of the T-shaped block (403). A spring (405) is provided inside the plug (404). A sliding sleeve (406) is movably connected to one side of the spring (405). A slider (407) is fixedly connected to one side of the sliding sleeve (406). A sliding rod (408) is slidably connected inside the slider (407). A locking block (409) is fixedly connected to one side of the sliding sleeve (406). A locking groove (410) is engaged with the outer wall of the locking block (409).
2. A traffic signal controller with modular pluggable functional units according to claim 1, characterized in that: The plug (404) forms a sliding structure through a T-shaped block (403) and a T-shaped groove (402), and the outer diameter of the T-shaped block (403) matches the inner diameter of the T-shaped groove (402), and the outer wall of the T-shaped block (403) fits against the inner wall of the T-shaped groove (402).
3. A traffic signal controller with modular pluggable functional units according to claim 1, characterized in that: The locking block (409) forms an elastic structure with the sliding sleeve (406) and the spring (405), and one side of the locking block (409) is fixedly connected to one side of the sliding sleeve (406), and the spring (405) is located on one side of the sliding sleeve (406).
4. A traffic signal controller with modular pluggable functional units according to claim 1, characterized in that: The socket (401) forms a locking structure with the card block (409) through the card slot (410), and the shape of the card slot (410) matches the shape of the card block (409), and the inner diameter of the card slot (410) matches the outer diameter of the card block (409).
5. A traffic signal controller with modular pluggable functional units according to claim 1, characterized in that: The interface component (5) includes a fixed shell (501) and the fixed shell (501) is fixed inside the socket (401). A metal sheet (502) is provided inside the fixed shell (501). A protrusion (503) is fixedly connected to one side of the metal sheet (502). A pin (504) is engaged with the outer wall of the protrusion (503). A groove (505) is provided inside the pin (504).
6. A traffic signal controller with modular pluggable functional units according to claim 5, characterized in that: The pin (504) forms an engaging structure with the protrusion (503) through the groove (505), and the shape of the groove (505) matches the shape of the protrusion (503), and the inner diameter of the groove (505) matches the outer diameter of the protrusion (503).
7. A traffic signal controller with modular pluggable functional units according to claim 5, characterized in that: The number of metal pieces (502) inside the fixed shell (501) is two, and the two metal pieces (502) are symmetrically arranged with the vertical line of the pin (504) as the axis of symmetry.
