A locomotive pedal flip device
By using a motor-driven synchronous belt system and tensioning pulley device, the problems of cumbersome manual pedal operation and safety risks have been solved, enabling convenient control and efficient operation of the pedal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN LIANCHENG TRACK EQUIP CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-21
AI Technical Summary
When existing rail transit locomotives stop at stations, the manual flipping of the pedals is cumbersome, the speed cannot meet the needs of passengers, poses safety risks, and is prone to operational errors, thus affecting operational efficiency.
The system uses a motor-driven synchronous belt system, which drives the pedal to rotate through the master and slave synchronous belt pulleys. Combined with the tensioning wheel device, the pedal is electrically controlled. It is also equipped with a manual crank to deal with motor failures. The pedal is designed to be retractable to adapt to different clearances.
It enables convenient opening and retraction of the pedal, reduces the burden and error of manual operation, improves the flexibility and safety of the device, and enhances operational efficiency.
Smart Images
Figure CN224528664U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rail transit technology, specifically to a locomotive pedal tilting device. Background Technology
[0002] In rail transit systems, the safe and efficient operation of locomotives is crucial to ensuring a smooth passenger travel experience. Currently, due to factors such as vehicle design, track laying precision, platform construction standards, and dynamic changes in train operation, most rail locomotives, both domestically and internationally, inevitably create a gap of 280mm-340mm between the locomotive and the platform when stopping at stations. To prevent passengers from missing their footing and falling onto the platform, a manual flip-up pedal has long been used to connect the locomotive and the platform. However, in actual locomotive operation, this manual operation method has revealed numerous problems. Firstly, the manual operation process is cumbersome. Operators must quickly complete a series of actions—unlocking, flipping, and securing the pedals—after the train has come to a complete stop. This involves many steps and strict time control. During peak passenger flow periods such as morning and evening rush hours, the speed of manual operation is far from meeting the needs of a large number of passengers boarding and alighting quickly, leading to longer waiting times for passengers and increased train stop times, thus affecting the overall operational efficiency of the line. Secondly, manual operation poses significant safety risks. Due to individual differences in physical strength, attention, and operational proficiency, the pedals may not be accurately and securely connected to the locomotive and platform, resulting in loosening and displacement of the pedals during passenger use, which can easily lead to safety accidents. Furthermore, long-term repetitive manual operation can easily cause operator fatigue, further increasing the probability of operational errors. Utility Model Content
[0003] The purpose of this invention is to provide a locomotive pedal tilting device to solve at least one aspect of the problems and defects mentioned in the background art.
[0004] In view of this, the present invention provides a locomotive pedal tilting device, comprising a motor, a synchronous belt, and a pedal; one end of the synchronous belt is connected to the motor via a main synchronous belt pulley, and the other end is connected to one side of the pedal via a secondary synchronous belt pulley, the pedal rotates around the secondary synchronous belt pulley, and both ends of the pedal are mounted on the locomotive via bearing seats; A tensioning pulley device is provided on the synchronous belt.
[0005] According to an embodiment of the present invention, a locomotive pedal tilting device has at least the following technical effects: The rotational connection between the synchronous belt pulley and the pedal facilitates the opening and retraction of the pedal, allowing it to rotate to the gap between the locomotive and the platform, thus improving passenger accessibility; the motor drives the main synchronous belt pulley, which in turn drives the secondary synchronous belt pulley, achieving electric control of the pedal and reducing the burden and error of manual operation; the tensioning wheel device ensures more precise and effective power transmission through the tensioning of the synchronous belt; and even in the event of a motor malfunction, the pedal rotation can still be manually controlled, improving the device's flexibility and practicality.
[0006] In some specific embodiments of this utility model, the pedal includes a connecting pedal and an upper pedal. The connecting pedal is fixed to the edge of the upper pedal by screws. A rotating shaft is fixed inside the upper pedal, and both ends of the rotating shaft are rotatably connected to the locomotive by bearings. One end of the rotating shaft is also connected to a synchronous pulley.
[0007] In some specific embodiments of this utility model, a mounting base is also included. The mounting base includes a base and two parallel support plates. The base is fixed on the locomotive, and the support plates are both vertically fixed on the base.
[0008] In some specific embodiments of this utility model, the tensioning wheel device includes a mounting shaft, a rotating wheel, and an elastic retaining ring for the hole. The mounting shaft is slidably mounted on the outer side of the support plate and limited by adjusting screws. The rotating wheel is fitted on the mounting shaft, and the outer side of the rotating wheel contacts the outer side of the timing belt. The elastic retaining ring for the hole is embedded in the rotating wheel.
[0009] In some specific embodiments of this utility model, the two ends of the rotating shaft are rotatably connected to the upper part of the support plate by bearings.
[0010] In some specific embodiments of this utility model, a limiting plate is provided at the end of the rotating shaft away from the synchronous pulley, and a limit switch is connected below the limiting plate. The limit switch is installed on the outside of the support plate and is electrically connected to the motor.
[0011] In some specific embodiments of this utility model, the motor is fixed on the base by a motor support, the output shaft of the motor is connected to the support plate by a bearing, and the bearing and the support plate are interference-fitted.
[0012] In some specific embodiments of this utility model, a speed reducer is provided at the connection between the motor and the main synchronous pulley. One end of the speed reducer is connected to the output shaft of the motor, and the other end is inserted into the middle of the main synchronous pulley and fixed to the support plate by a bearing.
[0013] In some specific embodiments of this utility model, an observation window assembly is provided on the outside of the synchronous belt, the main synchronous pulley, and the driven synchronous pulley. The observation window assembly includes an observation protection device and a glass plate disposed on the observation protection device.
[0014] In some specific embodiments of this utility model, a buffer block is provided on the lower surface of the pedal at the end away from the locomotive.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the structure of a locomotive pedal tilting device according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a locomotive pedal tilting device according to the present invention. Figure 2 ; Figure 3 for Figure 1 Schematic diagram of the tensioning wheel device; Figure 4 for Figure 2 Partial cross-sectional view of the connection structure between the main synchronous belt pulley and the reducer; Figure 5 for Figure 1 A schematic diagram of the structure of the central observation window component; Figure 6 for Figure 5 Enlarged view of the structure of the observation window component; Figure 7 for Figure 5 The right view.
[0018] Figure label: 100. Motor; 101. Motor support; 200. Synchronous belt; 201. Main synchronous belt pulley; 202. Driven synchronous belt pulley; 300. Pedal; 301. Connecting pedal; 302. Upper pedal; 303. Rotating shaft; 304. Buffer block; 400. Tensioner assembly; 401. Mounting shaft; 402. Rotary wheel; 403. Elastic retaining ring for the hole; 404. Adjusting screw; 405. Bearing set; 500. Reducer; 501. Bearing 1; 502. Key 1; 600. Mounting bracket; 601. Base; 602. Support plate; 700, Limit plate; 800 Limit switch; 801 Limit switch mounting bracket; 900. Observation window assembly; 901. Observation protection device; 902. Glass plate; 903. Sealing gasket. Detailed Implementation
[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0025] See Figures 1 to 7 As shown, a locomotive pedal tilting device of the present invention includes a motor 100, a synchronous belt 200 and a pedal; one end of the synchronous belt 200 is connected to the motor 100 through a main synchronous belt 200 pulley, and the other end is connected to one side of the pedal 300 through a pulley 202; the pedal 300 rotates around the pulley 202; and both ends of the pedal 300 are mounted on the locomotive through bearing seats. A tensioning pulley device 400 is provided on the synchronous belt 200.
[0026] For example: see Figure 1 As shown, the locomotive's pedal tilting device is installed below the door of each car section. The synchronous belt 200 is vertically positioned, with a main synchronous belt pulley 201 embedded in its lower end and a driven synchronous belt pulley 202 embedded in its upper end. The inner hole of the main synchronous belt pulley 201 mates with a keyway on the output shaft of the motor 100, embedding a flat key therein. This achieves axial and circumferential fixation between the output shaft of the motor 100 and the main synchronous belt pulley 201, ensuring effective torque transmission. The driven synchronous belt pulley 202 is connected to the pedal 300. Both ends of the pedal 300 are mounted on the locomotive door wall via bearing seats and can rotate around the locomotive door wall. One end of the pedal 300 is also connected to the driven synchronous belt pulley 202, causing the driven synchronous belt pulley 202 to drive the pedal 300 to rotate. Furthermore, the driven synchronous belt pulley 202 is fixed to the pedal 300 with screws, ensuring precise torque transmission. When the motor 100 is running, the output shaft of the motor 100 drives the main synchronous pulley 201 to rotate. The main synchronous pulley 201 drives the secondary synchronous pulley 202 to rotate via the synchronous belt 200, and the secondary synchronous pulley 202 drives the pedal 300 to rotate. The tensioning pulley device 400 is located in the middle of the synchronous belt 200. The outer surface of the tensioning pulley abuts against the outer surface of the synchronous belt 200 and rotates with the movement of the synchronous belt 200, giving the synchronous belt 200 an inward force to tighten it. This is used to adjust the tension of the belt, prevent slippage during operation, and make the synchronous belt 200 transmit power more effectively.
[0027] Furthermore, the motor 100 is fixed on the underframe crossbeam below the locomotive door. The synchronous belt 200, main synchronous belt pulley 201, and secondary synchronous belt pulley 202 are arranged on the locomotive and rotate via the pedal 300. When in use, the motor 100 runs, and the side of the pedal 300 away from the locomotive rotates and falls onto the platform. When not in use, the motor 100 runs, and the side of the pedal 300 away from the locomotive rotates into the locomotive and finally falls onto the floor inside the locomotive car.
[0028] In addition, the synchronous belt 200 and the main synchronous pulley 201 can transmit torque through tooth meshing, and the synchronous belt 200 and the driven synchronous pulley 202 can also transmit torque through tooth meshing. This connection relationship makes the transmission ratio more accurate, the transmission efficiency higher, the power transmission more stable, and the lubrication-free.
[0029] Furthermore, a control system can be installed inside the locomotive via an operation panel. The control system is electrically connected to the motor 100. When the driver or passengers press the open button on the operation panel, the door opens, triggering a signal. The motor 100 then receives a reverse command, causing the main synchronous pulley 201 to rotate. The main synchronous pulley 201, via the synchronous belt 200, drives the secondary synchronous pulley 202 to rotate, thereby rotating the pedal 300. When the pedal reaches a preset angle, such as 180°, the motor 100 stops, and the pedal 300 lands on the platform, allowing passengers to enter the carriage. When the door closes, the motor 100 receives a forward command, causing the pedal 300 to rotate in the opposite direction by a preset angle, such as 180°, at which point the motor 100 stops, and the pedal 300 retracts into the carriage. Additionally, a manual crank is integrated at the rear of the motor 100. In case of a motor 100 malfunction, a worker can manually open or retract the pedal 300 by attaching the crank to the manual crank and rotating it.
[0030] In addition, the step 300 is designed to be retractable. The length of the step 300 can be adjusted according to the distance between the platform and the locomotive. The length of the step 300 is 200mm-500mm to suit different scenarios and working environments.
[0031] In this embodiment, the rotational connection between the synchronous pulley and the pedal 300 facilitates the opening and retraction of the pedal 300, allowing it to rotate to the gap between the locomotive and the platform, thus enabling convenient passage for passengers. The synchronous pulley driven by the motor 100 enables the electric control of the pedal 300, reducing the burden and error of manual operation. The tensioning wheel device 400 enables the synchronous belt 200 to transmit power more accurately and effectively. Furthermore, when the motor 100 malfunctions, the pedal 300 can still be manually rotated, improving the practicality of the device.
[0032] In some specific embodiments of this utility model, see Figure 1As shown, the pedal 300 includes a connecting pedal 301 and an upper pedal 302. The connecting pedal 301 is fixed to the edge of the upper pedal 302 by screws. A rotating shaft 303 is fixed inside the upper pedal 302. Both ends of the rotating shaft 303 are rotatably connected to the locomotive by bearings. One end of the rotating shaft 303 is also connected to the synchronous pulley 202.
[0033] In this embodiment, the connecting pedal 301 is designed as an assemblable structure, replaceable according to platform clearance to suit different scenarios and working environments. A horizontal shaft runs through the interior of the upper pedal 302, which is fixedly connected to the rotating shaft 303 by bolts. During connection, the bolts pass through the mounting holes of the upper pedal 302 and the corresponding threaded holes on the rotating shaft 303. After tightening the bolts, the upper pedal 302 is firmly fixed to the rotating shaft 303, allowing the pedal 300 to rotate with the rotating shaft 303. The bolt design facilitates the disassembly of the pedal 300, enabling replacement of the pedal 300 between different vehicle models. Both ends of the rotating shaft are rotatably connected to the door wall. Both ends of the rotating shaft 303 are rotatably connected to the locomotive. One end of the rotating shaft 303 also passes through the center of the synchronous pulley 202, and is fixed to the shaft from the synchronous pulley 202 by screws, while also being axially limited and fixed by a flat key. A flat key is installed in the keyway of the timing pulley 202 and the keyway of the rotating shaft 303, which restricts the axial movement of the timing pulley 202 on the rotating shaft 303 and ensures that the timing pulley 202 and the rotating shaft 303 rotate synchronously, thereby converting the torque transmitted by the timing belt 200 into the rotation of the rotating shaft 303, which drives the pedal 300 to flip.
[0034] In some specific embodiments of this utility model, see Figure 1 and Figure 2 As shown, the locomotive pedal tilting device also includes a mounting base 600, which includes a base 601 and two parallel support plates 602. The base 601 is fixed on the locomotive, and the support plates 602 are both vertically fixed on the base 601.
[0035] In this embodiment, the base 601 is fixedly installed on the underframe crossbeam below the locomotive door, and a support plate 602 is vertically fixed on each side of the base 601. The motor 100 is installed on the base 601, and the pedal 300 is installed on the upper part between the two support plates 602, at the same level as the door. The pedal 300 rotates around the support plate 602 to open and close. The base 601 serves as the supporting foundation for the entire tilting device, and is fixedly connected to the car body structure below the locomotive door using high-strength bolts, providing reliable fastening force to ensure the stability of the base 601 during locomotive operation and to withstand various loads generated during device operation. Simultaneously, rubber pads are installed between the base 601 and the car body to absorb shock and prevent loosening.
[0036] In some specific embodiments of this utility model, see Figure 1 and Figure 3 As shown, the tensioning wheel device 400 includes a mounting shaft 401, a rotating wheel 402, and a retaining ring 403 for the bore. The mounting shaft 401 is slidably mounted on the outer side of the support plate 602 and is limited by the adjusting screw 404. The rotating wheel 402 is fitted on the mounting shaft 401, and the outer side of the rotating wheel 402 contacts the outer side of the timing belt 200. The retaining ring 403 for the bore is embedded in the rotating wheel 402 and is used to limit the bearing.
[0037] Specifically, a slot is formed on the outer surface of the support plate 602 on the same side as the synchronous belt pulley 202. The mounting shaft 401 passes through the slot and is fixed to the support plate 602 by a nut. The upper and lower surfaces of the mounting shaft 401 are flat to accommodate the edge of the slot and slide horizontally along the slot, ensuring the stability of the movement of the mounting shaft 401. An adjusting screw 404 is provided on the support plate 602, which is inserted into the mounting shaft 401 to limit the mounting shaft 401, thereby adjusting and fixing the tensioning wheel device 400, ensuring that the tensioning wheel device 400 does not exceed the specified range during adjustment, and ensuring the stability of the tension of the synchronous belt 200. The rotating wheel 402 is mounted on the outer wall of the mounting shaft 401 through a bearing sleeve 405, and the outer surface of the rotating wheel 402 is close to the outer surface of the synchronous belt 200. The bearing is secured in the annular groove of the rotating wheel 402 by the elastic retaining ring 403, preventing the bearing from moving axially and ensuring the bearing is in the correct position within the rotating wheel 402, thereby maintaining the stable operation of the rotating shaft 303.
[0038] In some specific embodiments of this utility model, see Figure 1 and Figure 2 As shown, the two ends of the rotating shaft 303 are rotatably connected to the upper part of the support plate 602 via bearings.
[0039] In this embodiment, a bearing is provided on the upper part of the support plate 602, and both ends of the rotating shaft 303 are rotatably connected to the support plate 602 through the bearings, which facilitates the support and fixation of the pedal 300. In addition, the height of the support plate 602 can be adjusted to adapt to different locomotives.
[0040] In some specific embodiments of this utility model, see Figure 2 As shown, a limit plate 700 is provided at one end of the rotating shaft 303 away from the synchronous pulley 202. A limit switch 800 is connected below the limit plate 700. The limit switch 800 is installed on the outside of the support plate 602 and is electrically connected to the motor 100.
[0041] Specifically, the limiting plate 700 is a semi-circular plate structure, installed on the end away from the synchronous pulley 202. The limit plate 700 is in contact with the limit switch 800 below. The limit switch 800 is installed on the outside of the support plate 602 through the limit switch mounting base 801, and the limit switch 800 is electrically connected to the motor 100.
[0042] In this embodiment, when the pedal 300 rotates, it drives the limiting plate 700 to rotate. The curved surface of the limiting plate 700 presses the limit switch 800. When the pedal 300 rotates 180°, the limit switch 800 receives a closing command and sends a signal back to the motor 100. The motor 100 stops operating, and the pedal 300 lands on the platform. Specifically, the pedal 300 can rotate with the shaft to flip up or down. The motor 100 can establish a signal communication relationship with the door and an interlock relationship with the limit switch 800. The limit switch 800 is fixed to the limit switch 800 mounting base with bolts, and the limit switch 800 mounting base is fixed to the left support plate 602 with bolts. The limit switch 800 is used to collect signals in the open and retracted positions of the pedal 300. When the pedal 300 flips to the corresponding position, the limit switch 800 is triggered, sending a signal to the control system to achieve precise control of the position of the pedal 300.
[0043] In some specific embodiments of this utility model, see Figure 2 As shown, the motor 100 is fixed on the base 601 by the motor support 101, and the output shaft of the motor 100 is connected to the support plate 602 by a bearing, and the bearing and the support plate 602 are interference fit.
[0044] Specifically, the motor support 101 is fixed to the base 601 with bolts. The motor support 101 is designed with recessed holes, allowing its position to be adjusted back and forth within a certain range. During installation, the motor support 101 is first placed in a suitable position. By adjusting the position of the bolts in the recessed holes, the installation position of the motor 100 is precisely adjusted to ensure proper alignment between the main synchronous pulley 201 and the driven synchronous pulley 202, and the tension of the synchronous belt. After adjustment, the bolts are tightened to firmly fix the motor support 101 to the base 601. The motor 100 does not directly contact the base 601 to prevent vibration of the motor 100 from affecting the normal operation of the tilting device. The output shaft of the motor 100 is connected to the support plate 602 via a bearing. The bearing and support plate 602 are interference-fitted, ensuring the bearing is firmly mounted on the mounting base 600, providing stable support and bearing a certain load. The inner ring of the bearing and the output shaft of the motor 100 are fitted with a clearance fit or a transition fit to ensure that the output shaft of the motor 100 can rotate freely within the bearing, while ensuring a certain degree of coaxiality and reducing friction and wear during rotation.
[0045] In some specific embodiments of this utility model, a reducer 500 is provided at the connection between the motor 100 and the main synchronous pulley 201. One end of the reducer 500 is connected to the output shaft of the motor 100, and the other end is inserted into the middle of the main synchronous pulley 201 and fixed on the support plate 602 by a bearing 501.
[0046] In this embodiment, see Figure 1 , Figure 2 and Figure 4 As shown, a reducer 500 is installed at the connection between the motor 100 and the main synchronous pulley 201 to reduce the output speed of the motor 100. The output shaft of the motor 100 and the input shaft of the reducer 500 are connected by a coupling. The coupling can compensate for a certain deviation between the output shaft of the motor 100 and the input shaft of the reducer 500, ensuring that the torque output by the motor 100 is smoothly transmitted to the reducer 500. It also absorbs the vibration generated during the operation of the motor 100, reducing the impact on the reducer 500. The motor 100 can rotate in both reverse and clockwise directions. The torque provided by its output end is transmitted to the reducer 500 through the coupling, realizing the power input required for the mechanism's flipping action. See also... Figure 4 As shown, the output shaft of the reducer 500 passes through the center of the main synchronous pulley 201 and is connected to it. The main synchronous pulley 201 is fixed to the output shaft of the reducer 500 by a key connection, that is, the inner hole of the main synchronous pulley 201 mates with the keyway on the output shaft of the reducer 500, and a flat key 502 is embedded therein, thereby achieving circumferential fixation between the main synchronous pulley 201 and the output shaft of the reducer 500, ensuring effective torque transmission. The end of the main synchronous pulley 201 is further fixed to the output shaft of the reducer 500 by screws, enhancing the reliability of the connection and preventing the main synchronous pulley 201 from loosening during high-speed rotation. The output shaft of the reducer 500 is fixed to the support plate 602 by a bearing 501.
[0047] In some specific embodiments of this utility model, an observation window assembly 900 is provided on the outside of the synchronous belt, the main synchronous pulley 201 and the secondary synchronous pulley 202. The observation window assembly 900 includes an observation protection device 901 and a glass plate 902 disposed on the observation protection device 901.
[0048] In this embodiment, see Figure 5 and Figure 6As shown, the observation and protection device 901 is an irregularly shaped hollow structure that covers the synchronous belt, the main synchronous pulley 201, and the driven synchronous pulley 202. A glass plate 902 is installed on the observation and protection device 901. The observation window is assembled to one side of the observation and protection device 901 by bolts or clips, allowing operators to easily check the operation of the synchronous belt, the main synchronous pulley 201, and the driven synchronous pulley 202 at any time. The glass plate 902 is sealed to the observation and protection device 901 by a sealing gasket 903. The sealed observation and protection device 901 effectively protects the transmission structure of the synchronous belt, the main synchronous pulley 201, and the driven synchronous pulley 202 from external dust and rainwater contamination, extending their service life.
[0049] In some specific embodiments of this utility model, see Figure 7 As shown, a buffer block 304 is provided on the lower surface of the pedal 300 at the end furthest from the locomotive. Specifically, when the pedal 300 is flipped into position, the buffer block 304 can buffer and reduce shock, reduce the impact force generated by the pedal 300 colliding with other components, reduce noise, and at the same time protect the pedal 300 and related connecting parts, thereby improving the service life and operational stability of the device.
[0050] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.
Claims
1. A locomotive pedal tilting device, characterized in that, It includes a motor (100), a synchronous belt (200), and a pedal (300); one end of the synchronous belt (200) is connected to the motor (100) via a main synchronous pulley (201), and the other end is connected to one side of the pedal (300) via a secondary synchronous pulley (202). The pedal (300) rotates around the secondary synchronous pulley (202), and both ends of the pedal (300) are mounted on the locomotive via bearing seats. A tensioning pulley device (400) is provided on the synchronous belt (200).
2. The locomotive pedal tilting device according to claim 1, characterized in that, The pedal (300) includes a connecting pedal (301) and an upper pedal (302). The connecting pedal (301) is fixed to the edge of the upper pedal (302) by screws. A rotating shaft (303) is fixed inside the upper pedal (302). Both ends of the rotating shaft (303) are rotatably connected to the locomotive by bearings. One end of the rotating shaft (303) is also connected to a synchronous pulley (202).
3. The locomotive pedal tilting device according to claim 2, characterized in that, It also includes a mounting base (600), which includes a base (601) and two parallel support plates (602). The base (601) is fixed on the locomotive, and the support plates (602) are both vertically fixed on the base (601).
4. A locomotive pedal tilting device according to claim 3, characterized in that, The tensioning wheel device (400) includes a mounting shaft (401), a rotating wheel (402), and a retaining ring (403) for the hole. The mounting shaft (401) is slidably mounted on the outer side of the support plate (602) and limited by an adjusting screw (404). The rotating wheel (402) is fitted on the mounting shaft (401), and the outer side of the rotating wheel (402) contacts the outer side of the timing belt (200). The retaining ring (403) for the hole is embedded in the rotating wheel (402).
5. A locomotive pedal tilting device according to claim 4, characterized in that, The two ends of the rotating shaft (303) are rotatably connected to the upper part of the support plate (602) via bearings.
6. A locomotive pedal tilting device according to claim 3, characterized in that, A limiting plate (700) is provided at the end of the rotating shaft (303) away from the synchronous pulley (202). A limit switch (800) is connected below the limiting plate (700). The limit switch (800) is installed on the outside of the support plate (602) and is electrically connected to the motor (100).
7. A locomotive pedal tilting device according to claim 3, characterized in that, The motor (100) is fixed on the base (601) by the motor support (101). The output shaft of the motor (100) is connected to the support plate (602) by a bearing. The bearing and the support plate (602) are interference fit.
8. A locomotive pedal tilting device according to claim 3, characterized in that, A reducer (500) is provided at the connection between the motor (100) and the main synchronous pulley (201). One end of the reducer (500) is connected to the output shaft of the motor (100), and the other end is inserted into the middle of the main synchronous pulley (201) and fixed on the support plate (602) by a bearing (501).
9. A locomotive pedal tilting device according to claim 1, characterized in that, An observation window assembly (900) is provided on the outside of the synchronous belt (200), the main synchronous pulley (201) and the secondary synchronous pulley (202). The observation window assembly (900) includes an observation protection device (901) and a glass plate (902) disposed on the observation protection device (901).
10. A locomotive pedal tilting device according to any one of claims 1 to 9, characterized in that, A buffer block (304) is provided on the lower surface of the pedal (300) at the end away from the locomotive.