Automatic leveling device for cab apron of train compartment

Abstract

The utility model provides an automatic leveling device for a cab apron of a train carriage. The automatic leveling device comprises a front pedal, a rear pedal, a first hinge and a second hinge, according to the cab apron automatic leveling device, the device can be firmly fixed to the ground of a carriage through the first hinge, the stability of the whole tool is guaranteed, flexible connection between the front pedal and the rear pedal is achieved through the second hinge, and when the cab apron automatic leveling device shakes due to vibration or angle change in the running process of a train carriage, the cab apron automatic leveling device is fixed. The first hinge and the second hinge can automatically rotate by means of gravity, it is ensured that the front pedal and the rear pedal are tightly attached to the compartment ground rapidly and continuously, and the automatic leveling function of the cab apron is achieved. And secondly, the first hinge and the second hinge comprise rotating shafts filled with oil storage through holes filled with grease and oil seepage holes, it is guaranteed that oil flows out of the oil seepage holes in the rotating process of the rotating shafts, continuous lubrication of the first hinge and the second hinge is guaranteed, hinge abrasion is effectively relieved, noise and abnormal sound generated after long-term use are reduced, and then the durability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the passage plate for car, concretely is a train car passage plate automatic leveling device. BACKGROUND

[0002] With the rapid development of high-speed rail transportation system and urban rail transit, multi-carriage rail high-speed trains, passenger cars and other vehicles have become the main means of transportation for urban travel. Such vehicles are usually composed of multiple carriages and connected through hinged parts to achieve flexible turning and driving. In order to ensure the safety and comfort of passengers moving between carriages, the design of the through passage and the passage plate assembly becomes crucial. Therefore, the application of the passage plate automatic leveling device is essential to ensure the safety and comfort of passengers. However, the existing train car passage plate automatic leveling device still has some room for improvement in actual application.

[0003] Firstly, due to the inevitable bumps and undulations of the road surface during train travel, these external factors will cause continuous impact and vibration to the passage plate and its connecting parts. For traditional train car passage plate automatic leveling devices, this frequent vibration often leads to the need for frequent adjustment and maintenance of the leveling device to ensure that it is always in good working condition. However, this frequent adjustment not only increases operating costs, but also brings some inconvenience to passengers' travel. Secondly, the hinge parts in the existing train car passage plate automatic leveling device, as the key components connecting the passage plate, have a relatively fast wear rate. This is mainly due to the fact that the hinge not only bears the weight of the passage plate and the pressure brought by passengers walking, but also needs to be frequently rotated to adapt to the angle changes between carriages. Long-term use and frequent rotation exacerbate the wear of the hinge, which in turn easily leads to the occurrence of problems such as hinge noise. This noise not only affects the passenger's travel experience, but also may pose a potential threat to the overall safety performance of the train. Therefore, it is necessary to develop a train car passage plate automatic leveling device with stronger load-bearing capacity and lower maintenance cost. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a train car passage plate automatic leveling device, which solves the problems of frequent adjustment and maintenance of part of the train car passage plate automatic leveling device in the prior art, fast wear of the hinge used and noise, etc.

[0005] The application discloses an automatic leveling device for a train compartment apron, which comprises a front apron, a rear apron, a first hinge and a second hinge, one end of the front apron is connected with one side of the first hinge, the other end of the front apron is hingedly connected with the rear apron through the second hinge, the first hinge and the second hinge each comprise a first hinge plate and a second hinge plate, one side of the first hinge plate is provided with two first inserting pieces, one side of the second hinge plate is provided with a second inserting piece, the second inserting piece is arranged between the two first inserting pieces, and the second inserting piece and the two first inserting pieces are inserted with a rotating shaft for rotatingly connecting the first hinge plate and the second hinge plate, two ends of the rotating shaft are fixed with the first inserting pieces, wherein the middle part of the rotating shaft is provided with an oil storage through hole filled with grease, the side wall of the rotating shaft is provided with an oil seepage hole, and one end of the rotating shaft is provided with an oil injection hole, and the oil seepage hole and the oil injection hole are connected with the oil storage through hole.

[0006] Preferably, one end of the rotating shaft is provided with an oil storage cavity, the end of the oil storage cavity is connected with the oil injection hole, and the end of the oil storage cavity away from the oil injection hole is connected with the oil storage through hole.

[0007] Preferably, the oil seepage hole is arranged at the bottom of the rotating shaft after the front apron and the rear apron are unfolded and arranged.

[0008] Preferably, the oil seepage hole is arranged at the top of the rotating shaft after the front apron and the rear apron are unfolded and arranged, the outer side wall of the rotating shaft is recessed in the direction of the axis of the rotating shaft and is provided with an annular groove, and a lubricating wire is arranged on the annular groove and extends into the oil storage through hole through the oil seepage hole.

[0009] Preferably, a plurality of flexible protective plates are further arranged on the side edges of the front apron and the rear apron and the end of the rear apron away from the front apron.

[0010] Further, the flexible protective plate is a polyurethane rubber protective plate or a nylon material protective plate.

[0011] Further, a plurality of fixing assemblies are further arranged, and the fixing assemblies are used for detachably connecting the flexible protective plate, the first hinge and the second hinge with the front apron or the rear apron.

[0012] Further, the fixing assembly is a threaded fixing assembly or a buckle fixing assembly.

[0013] Preferably, the front apron and the rear apron are provided with rubber materials at the bottom.

[0014] Preferably, the front apron and the rear apron are each provided with anti-skid patterns.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model provides an automatic leveling device for a train car ramp, comprising a front pedal, a rear pedal, a first hinge, and a second hinge. The first hinge securely fixes the device to the car floor, ensuring the stability of the entire fixture. The second hinge provides a flexible connection between the front and rear pedals. When the automatic leveling device shakes due to vibrations or angle changes in the train car, the first and second hinges automatically rotate under the weight of the front and rear pedals, ensuring rapid and continuous close contact between the pedals and the car floor, thus achieving automatic leveling. Furthermore, the first and second hinges include a rotating shaft with grease-filled oil storage holes and oil seepage holes. This not only ensures continuous lubrication of the first and second hinges during rotation, effectively reducing hinge wear, lowering noise and abnormal sounds after long-term use, and improving the durability of the device and the passenger experience, but also simplifies maintenance and enhances operational convenience by providing an oil injection hole at one end of the rotating shaft. Therefore, the automatic leveling device for the train carriage ramps has excellent stability, automatic leveling function, durability, and ease of maintenance, providing a safer, more comfortable, and reliable travel experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the unfolded structure of the automatic leveling device for train car ramps described in this utility model.

[0018] Figure 2 This is a front structural schematic diagram of the automatic leveling device for train car ramps described in this utility model.

[0019] Figure 3 This is a schematic diagram of the rear structure of the automatic leveling device for train carriage ramps described in this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the first and second hinges described in this utility model.

[0021] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle.

[0022] in:

[0023] 10-Front pedal, 20-Rear pedal, 30-First hinge, 40-Second hinge, 50-Flexible guard plate, 60-Fixing component, 70-Fixing plate, 80-Anti-slip pattern, 31-First hinge plate, 32-Second hinge plate, 33-Mounting hole, 11-First connector, 12-Second connector, 13-Shaft, 14-Oil storage through hole, 15-Oil seepage hole, 16-Oil storage cavity, 17-Oil injection hole. Detailed Implementation

[0024] The embodiments described below are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] See Figure 1 as well as Figure 2 This embodiment provides an automatic leveling device for a train car ramp, which includes a front pedal 10, a rear pedal 20, a first hinge 30, and a second hinge 40. One end of the front pedal 10 is connected to one side of the first hinge 30, and the other end of the front pedal 10 is hinged to the rear pedal 20 via the second hinge 40. Both the first hinge 30 and the second hinge 40 include a first hinge plate 31 and a second hinge plate 32. Two first connectors 11 are provided on one side of the first hinge plate 31, and a second connector is provided on one side of the second hinge plate 32. 12. The second connector 12 is disposed between the two first connectors 11, and the second connector 12 and the two first connectors 11 are connected by a rotating shaft 13 that allows the first hinge plate 31 and the second hinge plate 32 to rotate. The two ends of the rotating shaft 13 are fixed to the first connectors 11. The middle part of the rotating shaft 13 is provided with an oil storage through hole 14 filled with grease. The side wall of the rotating shaft 13 is provided with an oil seepage hole 15. One end of the rotating shaft 13 is provided with an oil injection hole 17. The oil seepage hole 15 and the oil injection hole 17 are both connected to the oil storage through hole 14.

[0026] Preferably, an oil reservoir 16 is provided at one end of the rotating shaft 13. The end of the oil reservoir 16 is connected to the oil injection hole 17, and the end of the oil reservoir 16 away from the oil injection hole 17 is connected to the oil storage through hole 14. The oil reservoir 16 not only simplifies the grease injection process but also allows for smooth grease flow into the interior of the rotating shaft 13 by storing more grease. This ensures that the rotating shaft 13 receives sufficient lubrication during long-term operation, effectively reducing wear and extending its service life. Simultaneously, because the grease is continuously and evenly distributed between the rotating shaft 13 and the second connector 12, it also significantly reduces noise and abnormal sounds caused by friction in the hinge, improving the overall performance of the device.

[0027] Preferably, the oil seepage hole 15 is located at the bottom of the rotating shaft 13 after the front pedal 10 and the rear pedal 20 are unfolded. The oil seepage hole 15 being located at the bottom allows grease to seep out more naturally and effectively from inside the rotating shaft 13 under its own weight, and to be evenly distributed on the contact surface between the rotating shaft 13 and the second connector 12. This ensures that the rotating shaft 13 receives continuous and sufficient lubrication during rotation, reducing wear and abnormal noise caused by insufficient lubrication.

[0028] Alternatively, the oil seepage hole 15 may be located at the top of the rotating shaft 13 after the front pedal 10 and the rear pedal 20 are unfolded. An annular groove is recessed into the outer wall of the rotating shaft 13 along its axis, and a lubricating wire is provided on the annular groove. The lubricating wire extends into the oil storage hole 14 through the oil seepage hole 15. It should be noted that by positioning the oil seepage hole 15 at the top, grease is absorbed by the lubricating wire through the oil seepage hole 15 and deposited between the rotating shaft 13 and the second connector 12, achieving comprehensive and meticulous lubrication of the rotating components. Simultaneously, the top-positioning of the oil seepage hole 15 also extends the service life of the grease.

[0029] See Figure 2 as well as Figure 3In this application, both the front pedal 10 and the rear pedal 20 are trapezoidal structures. The short side of the front pedal 10 and the long side of the rear pedal 20 are of the same length, and a second hinge 40 is hinged between these two sides, so that the front pedal 10 and the rear pedal 20 are combined to form a trapezoidal shape and are rotatably connected. In this application, flexible guard plates 50 are provided on the sides of the front pedal 10 and the rear pedal 20, as well as on the end of the rear pedal 20 away from the front pedal 10. This effectively reduces friction or abnormal noise caused by the collision between the pedal and the passenger floor due to vibration or angle changes during driving, thereby improving passenger comfort and extending the service life of the pedal and the passenger floor. It should be noted that after the flexible guard plate 50 is installed on the side of the front pedal 10, the front pedal 10 has an overall square structure, and the two corners on the side near the rear pedal 20 are set as arcs. After the flexible guard plate 50 is installed on the side of the rear pedal 20, the rear pedal 20 has a trapezoidal structure with an outward protruding arc surface on the side, which makes the front pedal 10 and the rear pedal 20 more aesthetically pleasing after installation and use.

[0030] Preferably, the flexible protective plate 50 is a polyurethane rubber protective plate or a nylon protective plate. These materials have good flexibility and durability, which can effectively reduce friction or abnormal noise caused by the collision between the ramp and the car floor due to vibration or angle changes during driving, improve passenger driving comfort, and extend the service life of the ramp and the car floor.

[0031] See Figure 2 as well as Figure 3In this application, the connections between the first hinge 30 and the front pedal 10, between the second hinge 40 and the front pedal 10 and the rear pedal 20, and between the flexible guard plate 50 and the front pedal 10 and the rear pedal 20 are all achieved by using fixing components 60 for detachable connection. The fixing component 60 is preferably a threaded fixing component 60 or a snap-fit ​​fixing component 60. In this application, the fixing component 60 is a threaded fixing component 60, which includes a hexagonal flathead screw and a fixing nut or cap nut that matches the hexagonal flathead screw. During installation, the first hinge 30 is aligned with the mounting hole 33 on the front pedal 10, and then the hexagonal flathead screw is inserted and the fixing nut or cap nut is screwed in to achieve the connection between the first hinge 30 and the front pedal 10. The second hinge 40 is connected to the front pedal 10 and the rear pedal 20, and the flexible guard plate 50 is connected to the front pedal 10 and the rear pedal 20 by inserting hexagonal flathead screws into the mounting holes 33 and screwing in the fixing nuts or cap nuts. It should be noted that the detachable connection method allows components such as the first hinge 30, the second hinge 40, and the flexible guard plate 50 to be easily disassembled, facilitating maintenance and replacement, as well as assembly and adjustment.

[0032] See Figure 3 To ensure a more secure and tight connection between the second hinge 40 and the front pedal 10 and the rear pedal 20, this application also includes a fixing plate 70. The fixing plate 70 is positioned on the side of the second hinge 40 facing away from the front pedal 10 and the rear pedal 20, and then screwed into the fixing assembly 60. Simultaneously, in this application, a fixing plate 70 is also provided at the connection between the flexible guard plate 50 and the rear pedal 20. The fixing plate 70 is positioned on the side of the rear pedal 20 away from the flexible guard plate 50, and then screwed into the fixing assembly 60. This fixing plate 70 structure enhances the stability of the connection and improves the structural strength and reliability of the entire automatic leveling fixture for the car body ramp.

[0033] See Figure 2 Preferably, both the front pedal 10 and the rear pedal 20 are provided with anti-slip patterns 80, which increases the friction of the ramp, improves the safety of passengers during use, and effectively prevents slipping accidents.

[0034] Preferably, the bottom of the front step 10 and the rear step 20 are provided with a rubber material layer. The rubber material layer significantly increases the friction between the ramp and the carriage floor, thereby further improving the stability of the ramp during train operation. Even when encountering strong vibrations or angular changes, it ensures that the ramp remains as close to the carriage floor as possible, without slipping or wobbling. Simultaneously, the rubber material layer also has good sound insulation and vibration damping properties. When the ramp experiences slight movement during automatic leveling, the rubber material layer can absorb and mitigate the vibrations and noise generated by these movements, effectively reducing abnormal noises and providing passengers with a quieter and more comfortable riding environment.

[0035] It should be noted that when the automatic leveling fixture for train car ramps of this application is used, the second hinge plate 32 of the first hinge 30 is fixed to the ground of one of the cars, and the front step 10 is also set on the ground of that car, while the rear step 20 is placed on the ground of the car adjacent to that car. When the train car vibrates or changes angle during travel, the front step 10 and the rear step 20 can be flexibly adjusted due to the setting of the first hinge 30 and the second hinge 40, so as to keep them in close contact with the ground of the car.

[0036] This utility model provides an automatic leveling device for a train car ramp, comprising a front foot pedal 10, a rear foot pedal 20, a first hinge 30, and a second hinge 40. The first hinge 30 securely fixes the device to the car floor, ensuring the stability of the entire fixture. The second hinge 40 enables flexible connection between the front foot pedal 10 and the rear foot pedal 20. When the automatic leveling device shakes due to vibrations or angle changes in the train car during travel, the first hinge 30 and the second hinge 40 automatically rotate under the weight of the front foot pedal 10 and the rear foot pedal 20, ensuring that the front foot pedal 10 and the rear foot pedal 20 quickly and continuously maintain close contact with the car floor, thus achieving the automatic leveling function of the ramp. Secondly, the first hinge 30 and the second hinge 40 include a rotating shaft 13 with an oil storage through-hole 14 and an oil seepage hole 15 filled with grease. This not only ensures that oil seepage holes 15 provide continuous lubrication for the first hinge 30 and the second hinge 40 during rotation, effectively reducing hinge wear, lowering noise and abnormal sounds after long-term use, and improving the durability of the device and the passenger's travel experience, but also simplifies the maintenance process and enhances operational convenience by providing an oil injection hole 17 at one end of the rotating shaft 13. Therefore, this automatic leveling device for train car ramps possesses excellent stability, automatic leveling function, durability, and ease of maintenance, providing a safer, more comfortable, and reliable travel experience.

[0037] The above-disclosed embodiments are merely some preferred embodiments of the present utility model, and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model patent application shall still fall within the scope of the present utility model.

Claims

1. An automatic leveling device for train carriage ramps, characterized in that: It includes a front pedal, a rear pedal, a first hinge, and a second hinge. One end of the front pedal is connected to one side of the first hinge, and the other end of the front pedal is hinged to the rear pedal via the second hinge. Both the first and second hinges include a first hinge plate and a second hinge plate. Two first connectors are provided on one side of the first hinge plate, and a second connector is provided on one side of the second hinge plate. The second connector is disposed between the two first connectors, and a rotating shaft is inserted between the second connector and the two first connectors to rotatably connect the first and second hinge plates. Both ends of the rotating shaft are fixed to the first connectors. The middle part of the rotating shaft is provided with an oil storage through hole filled with grease. An oil seepage hole is provided on the side wall of the rotating shaft, and an oil injection hole is provided at one end of the rotating shaft. Both the oil seepage hole and the oil injection hole are connected to the oil storage through hole.

2. The automatic leveling device for train carriage ramps as described in claim 1, characterized in that, An oil storage cavity is provided at one end of the rotating shaft. The end of the oil storage cavity is connected to the oil injection hole, and the end of the oil storage cavity away from the oil injection hole is connected to the oil storage through hole.

3. The automatic leveling device for train carriage ramps as described in claim 1, characterized in that, The oil leakage hole is located at the bottom of the pivot after the front pedal and the rear pedal are unfolded.

4. The automatic leveling device for train carriage ramps as described in claim 1, characterized in that, The oil seepage hole is located at the top of the pivot after the front pedal and the rear pedal are unfolded. The outer wall of the pivot has an annular groove recessed in the direction of its axis. A lubricating wire is provided on the annular groove, and the lubricating wire extends into the oil storage hole through the oil seepage hole.

5. The automatic leveling device for train carriage ramps as described in claim 1, characterized in that, It also includes multiple flexible guard plates, which are detachably disposed on the sides of the front pedal and the rear pedal, as well as on the end of the rear pedal away from the front pedal.

6. The automatic leveling device for train carriage ramps as described in claim 5, characterized in that, The flexible protective plate is a polyurethane rubber protective plate or a nylon protective plate.

7. The automatic leveling device for train carriage ramps as described in claim 5, characterized in that, It also includes multiple fixing components for enabling detachable connection of the flexible guard plate, the first hinge, and the second hinge to the front pedal or the rear pedal.

8. The automatic leveling device for train carriage ramps as described in claim 7, characterized in that, The fixing component is a threaded fixing component or a snap-fit ​​fixing component.

9. The automatic leveling device for train carriage ramps as described in claim 1, characterized in that, The bottom of the front pedal and the rear pedal are provided with rubber material.

10. The automatic leveling device for train carriage ramps as described in claim 1, characterized in that, Both the front pedal and the rear pedal are provided with anti-slip patterns.

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