Automatic train step

Abstract

The utility model provides an automatic train pedal, which comprises a bottom shell, an upper cover, an extension plate, a rack slide rail, an extension motor set and a sensor and an infrared detection probe, wherein the upper cover covers the upper end surface of the bottom shell, the extension plate can be extended and retracted relative to the bottom shell, the extension plate and a sliding plate are connected as a whole through a hinge, the lower end of the sliding plate is fixedly connected with a first rack, the lower end of the extension plate is fixedly connected with a second rack, the first rack and the second rack slide in the rack slide rail, and the extension plate and the sliding plate are driven by the extension motor set to make the first driving gear mesh with the first rack and the second rack to perform the extension and retraction movement.

Description

Technical Field

[0001] This utility model relates to a train auxiliary device, and more particularly to an automatic train pedal. Background Technology

[0002] In existing technologies, when trains are stopped at stations, passengers often face the problem of a gap between the train and the platform. To bridge this gap, traditional methods typically rely on train attendants manually placing metal plates to level it. This method is not only cumbersome and inefficient but also poses safety hazards, such as passengers slipping or falling if the plates are not placed securely. To improve these issues, some existing train tread mechanisms use motor-controlled mechanisms to extend or rotate the treads to fill the gap. For example, some devices use motors to extend or rotate the treads, achieving an automatic bridging function. However, these existing solutions are often structurally complex, involving multiple interconnected components, complex transmission systems, and control modules, resulting in high manufacturing costs, difficult maintenance, and susceptibility to malfunctions in practical applications, affecting train reliability and operational efficiency. Utility Model Content

[0003] An automatic train pedal includes: a base, a top cover, and an extension plate. The top cover covers the upper surface of the base, and the extension plate is retractable relative to the base. The base contains a rack and pinion rail and a telescopic motor assembly. The extension plate and the sliding plate are connected as a whole by a hinge. The lower end of the sliding plate is fixedly connected to a first rack, and the lower end of the extension plate is fixedly connected to a second rack. The first and second racks slide within the rack and pinion rail. The extension plate and the sliding plate are driven by the telescopic motor assembly to engage a first drive gear with the first and second racks to perform telescopic movement.

[0004] This utility model provides a simple and reliable automatic train pedal solution by incorporating components such as a rack and pinion slide rail, a telescopic motor unit, a travel motor unit, sensors, and infrared detection probes within the bottom shell. This solution addresses the problems of complex structures, high frictional resistance, inaccurate positioning, and energy waste associated with existing automatic train pedals.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic train pedal includes: a base, a top cover, and an extension plate. The top cover covers the upper surface of the base, and the extension plate is retractable relative to the base. The base contains a rack and pinion rail and a telescopic motor assembly. The extension plate and the sliding plate are connected as a whole by a hinge. The lower end of the sliding plate is fixedly connected to a first rack, and the lower end of the extension plate is fixedly connected to a second rack. The first and second racks slide within the rack and pinion rail. The extension plate and the sliding plate are driven by the telescopic motor assembly to engage a first drive gear with the first and second racks to perform telescopic movement.

[0006] Furthermore, rollers are provided on the side of the rack and pinion slide rail. The rollers support the protruding plate and the sliding plate and convert the sliding friction with the rack and pinion slide rail into rolling friction with the rollers, thereby reducing resistance.

[0007] Further configuration includes a reset sensor and a position sensor on the bottom shell. A sensor plate is fixed to the lower end face of the sliding plate. When the telescopic motor unit rotates forward and drives the extension plate to fully extend out of the bottom shell, the sensor plate is sensed by the position sensor. The position sensor sends a signal to the main control board inside the bottom shell, and the main control board then controls the telescopic motor unit to stop. When the extension plate fully extends out of the bottom shell, the second rack disengages from the rack and pinion rail, and the extension plate hangs down to contact the ground.

[0008] In a further configuration, when the telescopic motor unit reverses and the extension plate is fully retracted into the bottom shell, the sensor plate is detected by the reset sensor. The reset sensor sends a signal to the main control board inside the bottom shell, and then the main control board controls the telescopic motor unit to stop.

[0009] Further configuration includes a travel motor assembly, a drive wheel, and a driven wheel on the bottom surface of the base. The travel motor assembly is fixedly connected to the second drive gear, and the drive wheel is fixedly connected to the driven gear. The second drive gear meshes with the driven gear. The travel motor assembly operates to drive the drive wheel to rotate, and the rotation of the drive wheel drives the entire assembly to move forward or backward.

[0010] Further, an infrared detection probe is installed inside the bottom shell. The infrared detection probe is connected to the main control board inside the bottom shell. When the infrared detection probe detects an infrared signal, it sends a signal to the main control board. After receiving the signal, the main control board controls the travel motor unit to stop.

[0011] Further, a battery is installed inside the bottom shell, which supplies power to the main control board, telescopic motor assembly, and travel motor assembly.

[0012] Further configuration: when the drive wheel encounters an obstacle during the process of moving forward or backward, causing the movement to be obstructed, the current of the travel motor unit will increase. When the main control board detects the increase in the current of the travel motor unit, it will control the travel motor unit to stop to avoid crushing.

[0013] This utility model provides a simple and reliable automatic train pedal solution by incorporating components such as a rack and pinion slide rail, a telescopic motor unit, a travel motor unit, sensors, and infrared detection probes within the bottom shell. This solution addresses the problems of complex structures, high frictional resistance, inaccurate positioning, and energy waste associated with existing automatic train pedals. Attached Figure Description

[0014] Figure 1 This is a perspective view of the extended plate of this utility model in its non-extended state; Figure 2 This is a perspective view of the extended plate of this utility model in its extended state; Figure 3 This is a perspective view of the extended plate of this utility model in the extended state without the top cover; Figure 4 This is a perspective view of the extended plate of this utility model in its extended state, without the top cover and the extended plate itself. Figure 5 This is a perspective view of some components of the present invention; Figure 6 This is a perspective view of the first and second racks of this utility model; In the picture: Bottom shell 1, Top cover 2, 3. Rack and pinion slide rail, 31. Roller, 4. Telescopic motor assembly, 41. Sliding plate 5, first rack 51, sensing plate 52, extending plate 6, second rack 61 Reset sensor 71, Position sensor 72 81. Drive motor assembly; 82. Second drive gear; 83. Driven gear; 84. Drive wheel. Infrared detection probe 91, main control board 92, battery 93. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0018] To make the objectives, technical solutions, 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.

[0019] like Figures 1 to 6 As shown, this utility model provides an automatic train step, including a base shell 1, an upper cover 2, and an extension plate 6. The upper cover 2 covers the upper surface of the base shell 1, forming a closed shell structure to protect the internal components. The extension plate 6 can extend and retract relative to the base shell 1 to bridge the gap between the train and the platform.

[0020] The bottom shell 1 houses a rack and pinion slide rail 3 and a telescopic motor assembly 4. The extension plate 6 and the sliding plate 5 are connected by a hinge, forming a single integrated structure. A first rack 51 is fixedly connected to the lower end of the sliding plate 5, and a second rack 61 is fixedly connected to the lower end of the extension plate 6. Both the first rack 51 and the second rack 61 can slide within the rack and pinion slide rail 3. The telescopic motor assembly 4 drives a first drive gear 41, which meshes with both the first rack 51 and the second rack 61, thereby driving the extension plate 6 and the sliding plate 5 to extend and retract. Specifically, when the telescopic motor assembly 4 rotates forward, the first drive gear 41 pushes the first rack 51 and the second rack 61 to slide outward along the rack and pinion slide rail 3, causing the extension plate 6 to extend out of the bottom shell 1; when the telescopic motor assembly 4 rotates in reverse, it drives the extension plate 6 to retract into the bottom shell 1.

[0021] To reduce resistance during the extension and retraction process, rollers 31 are provided on the side of the rack and pinion slide rail 3. These rollers 31 support the protruding plate 6 and the sliding plate 5, and convert the original sliding friction with the rack and pinion slide rail 3 into rolling friction with the rollers 31, thereby reducing friction and improving the stability and durability of the device.

[0022] The bottom shell 1 is also equipped with a reset sensor 71 and a position sensor 72, and a sensing plate 52 is fixed to the lower end face of the sliding plate 5. When the telescopic motor assembly 4 drives the extension plate 6 to fully extend out of the bottom shell 1, the sensing plate 52 moves to the position of the position sensor 72 and is sensed by it. The position sensor 72 sends a signal to the main control board 92 inside the bottom shell 1. After receiving the signal, the main control board 92 controls the telescopic motor assembly 4 to stop. At this time, the second rack 61 disengages from the rack slide rail 3, and the extension plate 6 hangs down naturally through the hinge, contacting the ground to form a bridging channel (such as...). Figure 2 and Figure 3 (As shown). Conversely, when the telescopic motor assembly 4 reverses and drives the extension plate 6 to fully retract into the bottom shell 1, the induction plate 52 is sensed by the reset sensor 71. The reset sensor 71 sends a signal to the main control board 92, and the main control board 92 controls the telescopic motor assembly 4 to stop, ensuring that the device is reset (as shown). Figure 1 (As shown).

[0023] In addition, the bottom surface of the base shell 1 is provided with a travel motor assembly 81, a drive wheel 84, and a driven wheel. The travel motor assembly 81 is fixedly connected to a second drive gear 82, and the drive wheel 84 is fixedly connected to a driven gear 83. The second drive gear 82 meshes with the driven gear 83. When the travel motor assembly 81 is running, it drives the second drive gear 82 to rotate, thereby driving the driven gear 83 and the drive wheel 84 to rotate, realizing the forward or backward movement of the entire device (e.g., ...). Figure 5 (As shown). This design allows the entire device to be moved to accommodate gap bridging needs in different locations.

[0024] To enhance safety, an infrared detection probe 91 is installed inside the base shell 1, and this probe is connected to the main control board 92. When the infrared detection probe 91 detects an infrared signal (such as an obstacle or a human body), it sends a signal to the main control board 92. Upon receiving the signal, the main control board 92 controls the travel motor assembly 81 to stop, preventing collisions. Simultaneously, during travel, if the drive wheel 84 encounters an obstacle while driving the device forward or backward, causing obstruction, it will increase the current in the travel motor assembly 81. The main control board 92 detects this increased current and controls the travel motor assembly 81 to stop, preventing crushing or damage.

[0025] The bottom shell 1 is also equipped with a battery 93, which powers the main control board 92, the telescopic motor group 4 and the travel motor group 81, ensuring that the device can operate independently without an external power source.

[0026] This utility model, through the above-mentioned structure and control mechanism, realizes the automatic extension and retraction of the extension plate 6 and the overall movement function of the device. It has a simple structure and reliable operation, and can effectively solve the problems of complex structure, high frictional resistance, inaccurate positioning and energy waste of existing automatic pedals in trains, thereby improving the safety and convenience of passengers getting on and off the train.

[0027] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An automatic train pedal, comprising: The structure consists of a bottom shell (1), a top cover (2), and a protruding plate (6). The top cover (2) covers the upper surface of the bottom shell (1), and the protruding plate (6) can extend and retract relative to the bottom shell (1). The invention is characterized in that the bottom shell (1) is provided with a rack and pinion slide rail (3) and a telescopic motor assembly (4), the extension plate (6) and the sliding plate (5) are connected as a whole by a hinge, the lower end of the sliding plate (5) is fixedly connected to the first rack (51), the lower end of the extension plate (6) is fixedly connected to the second rack (61), the first rack (51) and the second rack (61) slide in the rack and pinion slide rail (3), and the extension plate (6) and the sliding plate (5) are driven by the telescopic motor assembly (4) to engage with the first rack (51) and the second rack (61) to perform telescopic movement.

2. The automatic train pedal according to claim 1, characterized in that, The rack and pinion slide rail (3) is provided with rollers (31) on its side. The rollers (31) are used to support the protruding plate (6) and the sliding plate (5) and convert the sliding friction with the rack and pinion slide rail (3) into rolling friction with the rollers (31), thereby reducing resistance.

3. The automatic train pedal according to claim 1, characterized in that, The bottom shell (1) is equipped with a reset sensor (71) and a position sensor (72). A sensor plate (52) is fixed on the lower end face of the sliding plate (5). When the telescopic motor group (4) rotates forward and drives the extension plate (6) to fully extend out of the bottom shell (1), the sensor plate (52) is sensed by the position sensor (72). After the position sensor (72) sends a signal to the main control board (92) inside the bottom shell (1), the main control board (92) controls the telescopic motor group (4) to stop. When the extension plate (6) fully extends out of the bottom shell (1), the second rack (61) disengages from the rack slide rail (3) and the extension plate (6) hangs down and contacts the ground.

4. The automatic train pedal according to claim 3, characterized in that, When the telescopic motor unit (4) reverses and drives the extension plate (6) to fully retract into the bottom shell (1), the sensor (52) is sensed by the reset sensor (71). After the reset sensor (71) sends a signal to the main control board (92) inside the bottom shell (1), the main control board (92) controls the telescopic motor unit (4) to stop.

5. An automatic train pedal according to claim 1, characterized in that, The bottom surface of the bottom shell (1) is provided with a motor assembly (81), a drive wheel (84), and a driven wheel. The motor assembly (81) is fixedly connected to the second drive gear (82), and the drive wheel (84) is fixedly connected to the driven gear (83). The second drive gear (82) meshes with the driven gear (83). The motor assembly (81) runs to drive the drive wheel (84) to rotate, and the drive wheel (84) rotates to drive the whole assembly to move forward and backward.

6. An automatic train pedal according to claim 5, characterized in that, An infrared detection probe (91) is installed inside the bottom shell (1). The infrared detection probe (91) is connected to the main control board (92) inside the bottom shell (1). When the infrared detection probe (91) detects an infrared signal, it sends a signal to the main control board (92). After receiving the signal, the main control board (92) controls the traveling motor unit (81) to stop.

7. An automatic train pedal according to claim 5, characterized in that, The bottom shell (1) contains a battery (93), which supplies power to the main control board (92), telescopic motor assembly (4), and travel motor assembly (81).

8. An automatic train pedal according to claim 5, characterized in that, When the drive wheel (84) rotates to drive the whole forward and backward movement, it encounters an obstacle and the movement is obstructed, which will cause the current of the travel motor (81) to increase. When the main control board (92) detects the increase in the current of the travel motor (81), it controls the travel motor (81) to stop to avoid crushing.

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