Railway transport vehicle end door assembly
The support structure, consisting of components such as support rods and rollers, solves the problem of damage to traditional railway transport vehicle end doors caused by their own weight and uneven stress. It also enables auxiliary support for the door body and automatic cleaning of the ventilation net, thereby improving the service life and ease of operation of the end door.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZEALFAST RAIL TRANSIT EQUIP(SHANGHAI) CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional railway transport vehicle end doors' hinges and other connecting parts are prone to damage due to their own weight and uneven stress, resulting in a short service life and safety hazards.
The support structure, which uses components such as support rods and rollers, combined with the connection of horizontal and inclined plates, helps to support the door body, reduces opening and closing resistance, and extends the service life of the end door by automatically cleaning the ventilation screen with brushes.
It extends the service life of the end door, reduces the resistance to opening and closing, and reduces the need for cleaning the ventilation screen, thus improving safety and ease of operation.
Smart Images

Figure CN224447766U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of railway vehicle end door technology, and in particular to a railway transport vehicle end door assembly. Background Technology
[0002] Railway carport end doors are doors installed on dedicated railway carports, primarily used to seal the ends of the carriages and ensure the safety and security of the vehicle during transport. End doors typically consist of components such as the door body, which includes left and right side doors and left and right middle doors. These parts are hinged together using hinges and pins, and a lock is installed between the two middle doors. The main function of end doors is to improve the structural form and performance of dedicated railway carports, increasing the vehicle's loading utilization rate and enhancing safety and reliability during transport.
[0003] Traditional end gates typically have a large total weight per door, which is entirely supported by hinges and other connecting parts. After a period of use, the uneven weight and stress can easily lead to damage to the hinges and other connecting parts between each door and the vehicle body pillars, or even cause the end gate to detach from the vehicle body. This not only results in a short service life for the end gate but also easily leads to safety accidents. In response to this, this application proposes a railway transport vehicle end gate assembly. Utility Model Content
[0004] To address the aforementioned problems, this application provides a railway transport vehicle end door assembly.
[0005] The technical solution adopted in this application for a railway transport vehicle end door assembly is as follows:
[0006] A railway transport vehicle end door assembly includes a vehicle body and a foldable door rotatably mounted at one end of the vehicle body. A plurality of ventilation nets are fixedly installed in a ventilation opening at the top of the door. An auxiliary support mechanism is provided between the vehicle body and the door. The auxiliary support mechanism includes a plurality of horizontal plates fixedly mounted on one side of the top of the door, a plurality of support rods fixedly mounted on the top side of the vehicle body, and rollers rotatably mounted at the bottom of the support rods for lifting and supporting the horizontal plates when the door is closed. A cleaning mechanism is movably provided at the bottom of the horizontal plates for cleaning the ventilation nets when the door is opened and closed.
[0007] By adopting the above technical solution, with the support of components such as support rods and rollers, and in conjunction with the connection of the horizontal plate, the door body, which has a large self-weight, can be auxiliary supported when the door body is closed. This prevents the hinges and other connecting parts on the door body from being damaged due to excessive or uneven force, thus extending the service life of the end door. In addition, the rollers can reduce the resistance when opening and closing the end door by rotating.
[0008] Preferably, the door includes a left door and a right door rotatably disposed on both sides of one end of the vehicle body, a left middle door rotatably disposed on one side of the left door, and a right middle door rotatably disposed on one side of the right door and engaging with the left middle door.
[0009] By adopting the above technical solution, the left door, right door, left middle door and right middle door form the door body, and several ventilation nets are fixed on the top of the left door, right door, left middle door and right middle door respectively.
[0010] Preferably, a rotating frame is fixedly provided at the bottom end of the support rod, and the roller is rotatably connected inside the rotating frame.
[0011] By adopting the above technical solution, the rotating frame can connect the support rod and the roller, allowing the roller to rotate at the bottom of the support rod.
[0012] Preferably, the bottom of the horizontal plate is fitted with a connecting plate, the top of the connecting plate is fixedly provided with a limiting rod that penetrates through and extends to the outside of the horizontal plate, the top of the limiting rod is fixedly provided with a limiting plate with a width larger than the limiting rod, the top of the connecting plate is fixedly provided with an inclined plate that fits against the top of the roller, and the cleaning mechanism includes a plurality of cleaning rods fixedly provided on one side of the connecting plate, and a plurality of brush bristles fixedly provided on one side of the cleaning rods and fitted into the ventilation mesh holes.
[0013] By adopting the above technical solution, when the door is opened and closed, the guide of the inclined plate and the support of the rollers can drive the brush and other components to move up and down. After moving, the brush can automatically clean and unclog the ventilation net, reducing the cleaning intensity of the ventilation net for staff later.
[0014] In summary, this application includes at least one of the following beneficial technical effects:
[0015] 1. With the support of components such as support rods and rollers, and the connection of the horizontal plate, it can provide auxiliary support for the heavy door body when the door is closed, so that the hinges and other connecting parts on the door body are not easily damaged due to excessive or uneven force, thus extending the service life of the end door. In addition, the rollers can reduce the resistance when opening and closing the end door by rotating, making it convenient to operate.
[0016] 2. The ventilation net allows for air exchange of goods inside the vehicle and balances the air pressure inside and outside the vehicle, preventing the door from being difficult to open or close due to pressure differences. When the door opens and closes, the guide plate and rollers work together to move the brush and other components up and down. The moved brush automatically cleans and unclogs the ventilation net, reducing the cleaning effort required by staff later. The entire system, through the cooperation of rollers, plate, and brush, provides auxiliary support for the end door and cleans the ventilation net when opening and closing the door, making it convenient and practical. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a railway transport vehicle end door assembly according to an embodiment of this application;
[0018] Figure 2 This is a front view connecting diagram of the internal structure of the vehicle body and the door, which is the main embodiment of this application.
[0019] Figure 3 The embodiments of this application mainly embody Figure 2 Enlarged view of the structure of A in the middle;
[0020] Figure 4 This is a left-side view showing the connection between the connecting plate and the brush bristles, which is the main embodiment of this application.
[0021] Reference numerals: 1. Vehicle body; 2. Door body; 21. Left door; 22. Right door; 23. Left middle door; 24. Right middle door; 3. Ventilation mesh; 4. Horizontal plate; 41. Support rod; 42. Roller; 43. Turning frame; 5. Connecting plate; 51. Inclined plate; 52. Cleaning rod; 53. Brush bristles; 54. Limiting rod; 55. Limiting plate. Detailed Implementation
[0022] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0023] This application discloses a railway transport vehicle end door assembly.
[0024] A railway transport vehicle end door assembly, referenced Figure 1-2 The system includes a car body 1 and a door body 2. The car body 1 is the existing carriage of a railway transport vehicle. The door body 2 is rotatably located at one end of the car body 1 and can be folded. The end door can be opened and closed by folding and rotating the door body 2. The door body 2 includes a left door 21 and a right door 22 rotatably located on both sides of one end of the car body 1, a left middle door 23 rotatably located on one side of the left door 21, and a right middle door 24 rotatably located on one side of the right door 22 and abutting against the left middle door 23. The left door 21, the right door 22, the left middle door 23 and the right middle door 24 constitute the existing end door. The door body 2 of the end door can be located on the outside or inside of the car body 1. Its interior can be connected by hinges or other adapters. The specific internal structure and principle have been disclosed and will not be described in detail here.
[0025] Reference Figure 1-2 Several ventilation nets 3 are fixedly installed inside the ventilation opening at the top of the door 2. The ventilation nets 3 can ventilate the goods inside the vehicle body 1 and balance the air pressure inside and outside the vehicle body 1, preventing the door 2 from being difficult to open or close due to air pressure differences.
[0026] Reference Figure 1-3An auxiliary support mechanism is provided between the vehicle body 1 and the door body 2. The auxiliary support mechanism includes several horizontal plates 4 fixedly installed on one side of the top of the door body 2, several support rods 41 fixedly installed on the top of the inner side of the vehicle body 1, and rollers 42 rotatably installed at the bottom of the support rods 41 to lift and support the horizontal plates 4 when the door body 2 is closed. Through the support of the support rods 41 and rollers 42 and the connection of the horizontal plates 4 and other components, the door body 2, which has a large self-weight, can be auxiliaryly supported when it is closed. This prevents the hinges and other connecting parts on the door body 2 from being damaged due to excessive or uneven force, thus extending the service life of the end door. In addition, the rollers 42 can reduce the resistance when opening and closing the end door by rotating.
[0027] Reference Figure 2-3 A rotating frame 43 is fixedly provided at the bottom end of the support rod 41, and a roller 42 is rotatably connected inside the rotating frame 43. The rotating frame 43 can be U-shaped. The rotating frame 43 can connect the support rod 41 and the roller 42, so that the roller 42 can rotate at the bottom end of the support rod 41.
[0028] Reference Figure 2-3 A connecting plate 5 is fitted to the bottom of the horizontal plate 4. A limiting rod 54 is fixedly provided at the top of the connecting plate 5, extending through and to the outside of the horizontal plate 4. A limiting plate 55 with a width larger than the limiting rod 54 is fixedly provided at the top of the limiting rod 54. An inclined plate 51 is fixedly provided at the top of the connecting plate 5, which fits against the top of the roller 42. The limiting rod 54 and the limiting plate 55 can limit the connecting plate 5, allowing the connecting plate 5 to move up and down at the bottom of the horizontal plate 4, and can support the naturally falling connecting plate 5 and other components. The connecting plate 5 and the inclined plate 51 can connect the horizontal plate 4 and the roller 42, making it easier for the roller 42 to lift and support the horizontal plate 4.
[0029] Reference Figure 2-4 The bottom of the horizontal plate 4 is movably equipped with a cleaning mechanism for cleaning the ventilation mesh 3 when the door 2 is opened and closed. The cleaning mechanism includes several cleaning rods 52 fixed on one side of the connecting plate 5, and several brush bristles 53 fixed on one side of the cleaning rods 52 and inserted into the mesh of the ventilation mesh 3. The cleaning rods 52 can connect the connecting plate 5 and the brush bristles 53. The connecting plate 5 is L-shaped. When the door 2 of the end door is opened, the door 2 will flip and fold outward to the outside of the vehicle body 1. At this time, the horizontal plate 4 will slowly disengage from the roller 42. Then, under the gravity of the limit rod 54 and other components, the connecting plate 5 will slowly move down.
[0030] When the end door 2 is closed, the top of the inclined plate 51 will contact the bottom roller 42 under the limit of the limit rod 54 and other components. As the door 2 continues to close, the inclined plate 51 will slowly move upward with the inclined guide, so that the bottom of the inclined plate 51 will contact the bottom roller 42. At this time, the connecting plate 5 and other components will move upward. After the connecting plate 5 moves up and down, it can drive the brush bristles 53 and other components to move up and down. After the brush bristles 53 moves, it can automatically clean and unclog the ventilation net 3, reducing the cleaning intensity of the ventilation net 3 for the staff later.
[0031] The implementation principle of a railway transport vehicle end door assembly according to an embodiment of this application is as follows:
[0032] When in use, staff can open and close the end door by flipping and folding the door 2. The ventilation net 3 can ventilate the goods inside the vehicle body 1 and balance the air pressure inside and outside the vehicle body 1, preventing the door 2 from being difficult to open or close due to air pressure differences.
[0033] When the door 2 of the end gate is opened, the door 2 will flip and fold outward to the outside of the vehicle body 1. At this time, the horizontal plate 4 will slowly detach from the roller 42, and then the connecting plate 5 will slowly move down under the gravity of the limit rod 54 and other components.
[0034] When the door 2 of the end gate is closed, the top of the inclined plate 51 will contact the bottom roller 42 under the limit of the limit rod 54 and other components. As the door 2 continues to close, the inclined plate 51 will slowly move upward with the inclined guide, so that the bottom of the inclined plate 51 will contact the bottom roller 42. At this time, the connecting plate 5 and other components will move upward. After the connecting plate 5 moves up and down, it can drive the brush 53 and other components to move up and down. After the brush 53 moves, it can automatically clean and unclog the ventilation net 3, reducing the cleaning intensity of the ventilation net 3 for the staff later.
[0035] Furthermore, when the end door 2 is fully closed, the support rod 41 and roller 42, along with the connection of the horizontal plate 4, connecting plate 5 and inclined plate 51, can provide auxiliary support for the heavy end door 2, making the hinges and other connecting parts on the end door 2 less prone to damage due to excessive or uneven force, thus extending the service life of the end door. In addition, the roller 42 can reduce the resistance when opening and closing the end door by rotating, making it convenient to operate.
[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A railway transport vehicle end door assembly, comprising a vehicle body (1) and a rotatable and foldable door body (2) located at one end of the vehicle body (1), wherein a plurality of ventilation nets (3) are fixedly provided in a ventilation opening at the top of the door body (2), characterized in that: An auxiliary support mechanism is provided between the vehicle body (1) and the door body (2). The auxiliary support mechanism includes several horizontal plates (4) fixedly installed on one side of the top of the door body (2), several support rods (41) fixedly installed on the top of the inner side of the vehicle body (1), and rollers (42) rotatably installed at the bottom of the support rods (41) for lifting and supporting the horizontal plates (4) when the door body (2) is closed. A cleaning mechanism is movably provided at the bottom of the horizontal plates (4) for cleaning the ventilation net (3) when the door body (2) is opened and closed.
2. A railway railcar end door assembly according to claim 1 wherein: The door (2) includes a left door (21) and a right door (22) rotatably located on both sides of one end of the vehicle body (1), a left middle door (23) rotatably located on one side of the left door (21), and a right middle door (24) rotatably located on one side of the right door (22) and engaging with the left middle door (23).
3. A railway railcar end door assembly according to claim 1 wherein: The bottom end of the support rod (41) is fixedly provided with a rotating frame (43), and the roller (42) is rotatably connected inside the rotating frame (43).
4. The railway transport vehicle end door assembly according to claim 1, characterized in that: The bottom of the horizontal plate (4) is fitted with a connecting plate (5).
5. A railway railcar end door assembly according to claim 4 wherein: The top of the connecting plate (5) is fixed with a limiting rod (54) that penetrates through and extends to the outside of the horizontal plate (4).
6. A railway railcar end door assembly according to claim 5 wherein: The top end of the limiting rod (54) is fixed with a limiting plate (55) whose width is greater than that of the limiting rod (54).
7. A railway railcar end door assembly according to claim 6 wherein: The top of the connecting plate (5) is fixedly provided with an inclined plate (51) that abuts against the top of the roller (42).
8. A railway railcar end door assembly according to claim 7 wherein: The cleaning mechanism includes a number of cleaning rods (52) fixed on one side of the connecting plate (5) and a number of brush bristles (53) fixed on one side of the cleaning rods (52) and inserted into the mesh of the ventilation net (3).