A sliding rail mechanism of an electric sliding door

Abstract

The utility model discloses a kind of slide rail mechanisms of electric translation door, including vehicle door main body, the both sides of two ends of vehicle door main body are fixedly provided with mounting bracket, the middle part of vehicle door main body is equipped with door assembly structure, the side of door assembly structure is equipped with engagement structure, the top of door assembly structure is equipped with slide rail structure, the side of slide rail structure is equipped with fixed structure, the bottom of vehicle door main body is equipped with stabilizing structure, a kind of slide rail mechanisms of electric translation door of the utility model, through slide rail structure, center translation door traffic efficiency is promoted, anti-pinch sensor and buzzer alarm linkage form all-around safety protection, slide rail structure is as core transmission part, servo motor accurate control power, meshing transmission efficient stability of initiative pulley and transmission slide rail, auxiliary pulley prolongs life, transmission arm guarantees vehicle door translation trajectory accuracy, effectively improve the smoothness, accuracy and fluency of electric translation door operation.

Description

Technical Field

[0001] This utility model relates to the field of sliding door technology, specifically to a sliding rail mechanism for an electric sliding door. Background Technology

[0002] Electric sliding doors are a type of sliding door. They open through a drive system and automatically close after people leave. The system controls the opening and closing process, making it convenient and fast. It is widely used in public transportation. Drivers can easily control the opening and closing of the doors through control buttons in the cab, eliminating the need to manually push or pull the doors. This improves operational efficiency and makes it easier for passengers to get on and off the bus. Especially when passenger flow is high, it can quickly complete the passenger boarding and alighting process and reduce vehicle stopping time.

[0003] A search revealed a Chinese patent document disclosing a multifunctional electric sliding door (publication number: CN222296048U), comprising a door frame, a support plate, a first door, a second door, an opening and closing drive device for driving the first and second doors to move closer or further apart, a first guide device for driving the first door to move along the length of the support plate, and a second guide device for driving the second door to move along the length of the support plate. Both the first and second doors are connected to the output end of the opening and closing drive device. The first guide device is laterally movable and located on the support plate. The second guide device is fixedly mounted on the upper end of the second door and is also laterally movable and located on the support plate. By employing the first and second guide devices respectively, the first and second doors are guided, improving the positional accuracy of the first and second doors during opening and closing, and to some extent meeting the multifunctional requirements of the first and second doors. However, it still has many shortcomings:

[0004] The electric sliding door structure of this multi-functional electric sliding door includes multiple components such as a door frame, support plate, first door, second door, opening and closing drive device, first guide device, and second guide device. The connection and cooperation between these components are quite complex, which makes the installation, debugging, and maintenance of the entire device more time-consuming and labor-intensive, increasing the cost and difficulty of use. Furthermore, due to the complex structure, simultaneous opening and closing in both directions, and the large number of parts involved, any failure of any component during long-term use may cause the entire device to malfunction, resulting in poor stability and safety. Utility Model Content

[0005] The purpose of this utility model is to provide a sliding rail mechanism for an electric sliding door, in order to solve the problems mentioned in the background art. The existing multi-functional electric sliding door structure includes multiple components such as a door frame, support plate, first door, second door, opening and closing drive device, first guide device, and second guide device. The connection and cooperation between these components are relatively complex, which makes the installation, debugging, and maintenance of the entire device more time-consuming and labor-intensive, increasing the cost and difficulty of use. Furthermore, due to the complex structure, simultaneous opening and closing in both directions, and the large number of parts involved, any failure of any component during long-term use may cause the entire device to malfunction, resulting in poor stability and safety.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sliding rail mechanism for an electric sliding door, comprising a door body, mounting brackets fixedly provided on both sides of the door body, a moving door assembly structure provided in the middle of the door body, a locking structure provided on one side of the moving door assembly structure, a sliding rail structure provided at the top of the moving door assembly structure, a fixing structure provided on one side of the sliding rail structure, and a stabilizing structure provided at the bottom of the door body.

[0007] Preferably, the moving door assembly structure includes a central sliding door, the surface of which is fixedly provided with a glass window. A warning ring is provided at the top of one side of the glass window, and an auxiliary handle is provided at the bottom of one side of the glass window. A ventilation window is provided at the bottom of the central sliding door, and a bottom groove is provided at the bottom of the ventilation window. As a core moving component, the central sliding door's sliding design reduces the obstruction of the boarding and alighting passage when opened, improving passenger passage efficiency. Especially when passenger flow is high, it can quickly complete the evacuation of people. The warning ring reflects the direction of the door opening and closing, reminding passengers to pay attention to the door's movement and avoid collisions due to negligence. The bottom groove precisely cooperates with the sliding components at the bottom of the door, providing stable bottom guidance for the door's sliding, reducing swaying during the sliding process, and ensuring smooth door operation.

[0008] Preferably, the locking structure includes a side buckle, one end of which is movably connected to a latch. One end of the latch is embedded in one side of the middle portion of the door body. A return spring is fixedly connected to one side of the latch. The end of the return spring away from the latch is movably connected to one side of the middle portion of the door body. An anti-pinch sensor is provided on one side of the middle portion of the door body, and a buzzer alarm is provided on one side of the anti-pinch sensor. The mechanical cooperation between the side buckle and the latch forms a double lock, ensuring a tight lock after the door is closed, preventing the door from accidentally opening due to vibration during vehicle operation. The door lock is highly reliable, and the return spring has excellent elastic recovery performance. After the door is unlocked, it can automatically drive the latch to reset, ensuring accurate engagement with the latch when closing next time, reducing manual adjustment. The anti-pinch sensor uses infrared or pressure sensing technology to sensitively detect obstacles in the door closing path, such as passenger limbs or luggage, triggering the protection mechanism in advance. The buzzer alarm is linked with the anti-pinch sensor, and immediately emits a clear audible and visual alarm when an obstacle is detected, reminding passengers to avoid it in time and prompting the driver to stop the door closing operation, ensuring the safety of passengers getting on and off the vehicle in all aspects.

[0009] Preferably, the slide rail structure includes a servo motor, the output end of which is fixedly connected to an active pulley. A transmission slide rail is meshed with the surface of the active pulley. An auxiliary pulley is provided at the end of the transmission slide rail furthest from the active pulley. A transmission arm is fixedly provided at the bottom end of the transmission slide rail, and the bottom end of the transmission arm is fixedly connected to the top end of the inner surface of the central sliding door. The servo motor can precisely adjust the speed and force of the door opening / closing, avoiding door jamming or impact due to unstable power. The active pulley and the transmission slide rail use meshing transmission, resulting in high transmission efficiency and stable power transmission, reducing energy loss. The auxiliary pulley provides support and guidance for the transmission slide rail, distributing the force on the slide rail, reducing single-point wear, and extending service life. Simultaneously, the transmission arm can stably transmit power to the central sliding door, ensuring accurate translation of the door's trajectory on the slide rail, avoiding deviation, achieving smooth opening / closing of the door and positional accuracy, and reducing operating noise.

[0010] Preferably, the fixing structure includes a top hanger, the top of which is fixedly connected to the vehicle body. Upper fixing brackets are fixedly connected to both sides of the bottom of the top hanger. The bottom ends of the two upper fixing brackets are respectively fixedly connected to both sides of the top of the door body. A side protective frame is fixedly installed on one side of the top hanger, and the bottom end of the side protective frame is fixedly connected to the top of the door body. The top hanger is rigidly connected to the vehicle body by bolts, and can withstand the overall weight of the door and the impact force during operation, providing stable upper support for the door. The upper fixing brackets are symmetrically distributed, connecting the top of the door body to the hanger, further dispersing the force and preventing deformation of the door due to long-term use.

[0011] Preferably, the stabilizing structure includes two door mounting bases. The top ends of the two door mounting bases are fixedly connected to the two sides of the bottom end of the door body, and the bottom ends of the two door mounting bases are fixedly connected to the vehicle body. A guide rod is fixedly installed on one side of the vehicle body, and one end of the guide rod is slidably connected to the surface of the bottom groove. The door mounting bases provide solid support for the bottom of the door, balance the forces on the upper and lower parts of the door, and prevent tilting due to the shift of the center of gravity. The guide rod slides in cooperation with the bottom groove, which can not only assist the door in translational guidance, but also reduce the sliding resistance at the bottom, so that the door remains stable during the entire sliding stroke. Especially in the starting and ending phases of opening / closing the door, it can effectively reduce vibration and improve the smoothness of operation.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This type of electric sliding door utilizes a sliding mechanism in its moving door assembly structure. The central sliding door's sliding design improves passage efficiency, a warning ring ensures safety, and a bottom track ensures smooth sliding. Furthermore, the double locking mechanism of side latches and buckles enhances the sliding door's stability and reliability. A return spring reduces operational hassle, and an anti-pinch sensor and buzzer alarm work together to provide comprehensive safety protection. The sliding rail structure serves as the core transmission component, with a servo motor precisely controlling power. The meshing transmission between the active pulley and the drive rail is efficient and stable, while the auxiliary pulley extends its lifespan. The transmission arm ensures precise door sliding trajectory and effectively... The system improves the stability, accuracy, and smoothness of the electric sliding door's operation. The fixed structure provides stable support and distributes force through the top hanger and upper fixed bracket to prevent deformation. The stabilizing structure balances the force with the door mounting base, and the guide rod assists in guidance and reduces resistance and vibration. The coordinated action of these structures ensures both the safety and convenience of passengers getting on and off the vehicle, as well as the overall stability and reliability of the electric sliding door's operation. In particular, the optimized design of the slide rail structure provides key support for the efficient transmission and precise movement of the electric sliding door, enhancing the practicality and durability of the overall mechanism. Attached Figure Description

[0014] Figure 1 This is a front view of the slide rail mechanism of the electric sliding door of this utility model;

[0015] Figure 2 This is a rear view of the slide rail mechanism of the electric sliding door of this utility model;

[0016] Figure 3 This is a side view of the slide rail mechanism of the electric sliding door of this utility model;

[0017] Figure 4 This is a top view of the slide rail structure and fixing structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the snap-fit ​​structure of this utility model.

[0019] In the diagram: 1. Door body; 2. Mounting bracket; 3. Center sliding door; 4. Glass window; 5. Warning ring; 6. Auxiliary handle; 7. Ventilation window; 8. Bottom slide rail; 9. Side buckle; 10. Clip; 11. Return spring; 12. Anti-pinch sensor; 13. Buzzer alarm; 14. Servo motor; 15. Active pulley; 16. Transmission slide rail; 17. Auxiliary pulley; 18. Transmission arm; 19. Top hanger; 20. Upper fixed bracket; 21. Side protective frame; 22. Door mounting base; 23. Guide rod. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figure 1-5 This utility model provides a sliding rail mechanism for an electric sliding door, including a door body 1, mounting brackets 2 fixedly installed on both sides of the door body 1, a moving door assembly structure in the middle of the door body 1, a locking structure on one side of the moving door assembly structure, a sliding rail structure at the top of the moving door assembly structure, a fixing structure on one side of the sliding rail structure, and a stabilizing structure at the bottom of the door body 1.

[0022] When in use, the main body 1 of the door is securely connected to the vehicle body through the mounting brackets 2 on both sides, providing basic support for the overall structure.

[0023] Furthermore, the moving door assembly structure includes a central sliding door 3, a glass window 4 is fixedly provided on the surface of the central sliding door 3, a warning ring 5 is provided at the top of one side of the glass window 4, an auxiliary handle 6 is provided at the bottom of one side of the glass window 4, a ventilation window 7 is provided at the bottom of the central sliding door 3, and a bottom slide groove 8 is provided at the bottom of the ventilation window 7.

[0024] When in use, the center sliding door 3 can slide along a set trajectory, the glass window 4 allows for easy observation of the outside situation, the warning ring 5 reminds passengers to pay attention when the door is opened and closed, the auxiliary handle 6 is easy to hold when the center sliding door 3 is stuck, and drives it to run stably, the ventilation window 7 allows air circulation inside the vehicle, and the bottom slide 8 provides bottom guidance for the sliding of the center sliding door 3.

[0025] Furthermore, the locking structure includes a side buckle 9, one end of which is movably connected to a buckle 10. One end of the buckle 10 is embedded in one side of the middle of the door body 1. A return spring 11 is fixedly connected to one side of the buckle 10. The end of the return spring 11 away from the buckle 10 is movably connected to one side of the middle of the door body 1. An anti-pinch sensor 12 is provided on one side of the middle of the door body 1, and a buzzer alarm 13 is provided on one side of the anti-pinch sensor 12.

[0026] When in use, the side latch 9 and the buckle 10 work together to achieve double locking of the door. After unlocking, the return spring 11 drives the buckle 10 to return to its original position. When the anti-pinch sensor 12 detects an obstacle such as a passenger's limbs or luggage, the buzzer alarm 13 sounds an alarm to ensure safety.

[0027] Furthermore, the slide rail structure includes a servo motor 14, the output end of which is fixedly connected to an active pulley 15, the surface of which is meshed with a transmission slide rail 16, an auxiliary pulley 17 at the end of the transmission slide rail 16 away from the active pulley 15, and a transmission arm 18 fixedly provided at the bottom end of the transmission slide rail 16, the bottom end of which is fixedly connected to the top end of the inner surface of the central sliding door 3.

[0028] In use, the servo motor 14 provides power to drive the active pulley 15 to rotate. The active pulley 15 meshes with the transmission rail 16 for transmission. The auxiliary pulley 17 assists in supporting the transmission rail 16. The transmission arm 18 at the bottom transmits power to the central sliding door 3, enabling the central sliding door 3 to slide smoothly and accurately.

[0029] Furthermore, the fixing structure includes a top hanger 19, the top of which is fixedly connected to the vehicle body. Both sides of the bottom of the top hanger 19 are fixedly connected to upper fixing brackets 20. The bottom ends of the two upper fixing brackets 20 are fixedly connected to the top of the door body 1 on both sides respectively. A side protective frame 21 is fixedly installed on one side of the top hanger 19, and the bottom end of the side protective frame 21 is fixedly connected to the top of the door body 1.

[0030] In use, the top hanger 19 is connected to the vehicle body to provide upper support for the entire slide rail structure. The upper fixed bracket 20 connects the top hanger 19 to the door body 1 and distributes the force. The side protective frame 21 protects the internal parts.

[0031] Furthermore, the stabilizing structure includes two door mounting bases 22, the tops of the two door mounting bases 22 are fixedly connected to the two sides of the bottom end of the door body 1 respectively, the bottom ends of the two door mounting bases 22 are fixedly connected to the vehicle body, and a guide rod 23 is fixedly provided on one side of the vehicle body, one end of the guide rod 23 is slidably connected to the surface of the bottom slide groove 8.

[0032] In use, the door mounting base 22 provides support for the bottom of the door body 1, and the guide rod 23 cooperates with the bottom slide groove 8 to assist in guidance and reduce sliding resistance, thereby improving the smoothness of the central sliding door 3.

[0033] In this embodiment, the door body 1 is securely connected to the vehicle body via mounting brackets 2 on both ends, providing a solid foundation for the overall structure. The central sliding door 3 moves laterally along the set trajectory of the transmission slide rail 16, ensuring smooth passage for passengers. The glass window 4 allows passengers to observe the outside environment, enhancing the riding experience. The warning ring 5 serves as a warning, reminding passengers to pay attention to the door opening and closing direction. The auxiliary handle 6 provides a grip when the central sliding door 3 jams, assisting in stable operation. The servo motor 14 provides stable power, driving the active pulley 15 to rotate, thereby engaging the transmission slide rail 16 for efficient power transmission. The bottom... The transmission arm 18 smoothly transmits power to the central sliding door 3, working together with the guide rod 23 at the bottom to achieve smooth and precise sliding, ensuring the smooth and accurate opening and closing of the door. When the central sliding door 3 is closed, the door is double-locked by the cooperation of the side buckle 9 and the latch 10, ensuring that the door will not be opened accidentally when the vehicle is in motion. The return spring 11 can automatically drive the latch 10 to reset after the door is unlocked, ensuring accurate docking when closing next time. At the same time, the anti-pinch sensor 12 monitors the door closing path in real time. If it detects obstacles such as passenger limbs or luggage, the buzzer alarm 13 will immediately sound an alarm, ensuring the safety of passengers getting on and off the vehicle in all aspects.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sliding rail mechanism for an electric sliding door, comprising a door body (1), characterized in that: Mounting brackets (2) are fixedly installed on both sides of the main body of the car door (1). A moving door assembly structure is provided in the middle of the main body of the car door (1). A locking structure is provided on one side of the moving door assembly structure. A slide rail structure is provided at the top of the moving door assembly structure. A fixing structure is provided on one side of the slide rail structure. A stabilizing structure is provided at the bottom of the main body of the car door (1).

2. The slide rail mechanism of an electric sliding door according to claim 1, characterized in that: The moving door assembly structure includes a central sliding door (3), a glass window (4) is fixedly provided on the surface of the central sliding door (3), a warning ring (5) is provided at the top of one side of the glass window (4), an auxiliary handle (6) is provided at the bottom of one side of the glass window (4), a ventilation window (7) is provided at the bottom of the central sliding door (3), and a bottom groove (8) is provided at the bottom of the ventilation window (7).

3. The slide rail mechanism of an electric sliding door according to claim 1, characterized in that: The locking structure includes a side buckle (9), one end of which is movably connected to a buckle (10). One end of the buckle (10) is embedded in one side of the middle of the door body (1). A return spring (11) is fixedly connected to one side of the buckle (10). The end of the return spring (11) away from the buckle (10) is movably connected to one side of the middle of the door body (1). An anti-pinch sensor (12) is provided on one side of the middle of the door body (1), and a buzzer alarm (13) is provided on one side of the anti-pinch sensor (12).

4. The slide rail mechanism of an electric sliding door according to claim 1, characterized in that: The slide rail structure includes a servo motor (14), the output end of which is fixedly connected to an active pulley (15), and the surface of the active pulley (15) is meshed with a transmission slide rail (16). An auxiliary pulley (17) is provided at one end of the transmission slide rail (16) away from the active pulley (15). A transmission arm (18) is fixedly provided at the bottom end of the transmission slide rail (16), and the bottom end of the transmission arm (18) is fixedly connected to the top end of the inner surface of the central sliding door (3).

5. The slide rail mechanism of an electric sliding door according to claim 1, characterized in that: The fixed structure includes a top hanger (19), the top of which is fixedly connected to the vehicle body. Both sides of the bottom of the top hanger (19) are fixedly connected to upper fixed brackets (20). The bottom ends of the two upper fixed brackets (20) are fixedly connected to the top of the door body (1) on both sides respectively. A side protective frame (21) is fixedly installed on one side of the top hanger (19), and the bottom end of the side protective frame (21) is fixedly connected to the top of the door body (1).

6. The slide rail mechanism of an electric sliding door according to claim 1, characterized in that: The stabilizing structure includes two door mounting bases (22), the tops of the two door mounting bases (22) are fixedly connected to the two sides of the bottom of the door body (1), the bottom of the two door mounting bases (22) are fixedly connected to the vehicle body, and a guide rod (23) is fixedly provided on one side of the vehicle body. One end of the guide rod (23) is slidably connected to the surface of the bottom slide groove (8).

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