Railway car front end overhang

Abstract

The application discloses a front-end extension type through passage of a rail passenger car, which comprises a fixed passage fixedly installed at the end of a car body and a movable passage movably installed in the fixed passage, wherein the end of the movable passage of one end of the car body is fixed with a folding shed body, the folding shed body is fixedly installed with a folding shed connecting frame, and the other end of the car body is fixedly installed with a locking frame assembly; the folding shed connecting frame and the locking frame assembly are detachably connected; and a driving assembly and a guide rail assembly are installed in the fixed passage. The through passage of the application pushes out and retracts the movable passage by means of a motor-driven push rod driving a reversing gear. The gears with different teeth are integrated into an integral gear design. The motor-driven push rod with a smaller stroke can realize a larger pushing stroke. The motor-driven push rod and the rack are arranged in a staggered direction, so that the installation of the whole driving mechanism can be completed in a smaller space.

Description

Technical Field

[0001] This invention relates to the field of rail passenger vehicle through passage technology, and particularly to a rail passenger vehicle front-extending through passage. Background Technology

[0002] There is currently no mature application of front (or rear) connecting passageways between trains in basic train formations. The current situation is that two train formations of the same type are separated from each other, and passengers cannot move between them. To travel from the first carriage to the last carriage, a transfer at the platform is required. Therefore, existing technology incorporates detachable connection structures at the ends of the two train formations. When carriages need to be connected to other carriages, these detachable connection structures allow for free combination, coupling, and uncoupling of the train formations. Connecting and uncoupling passageways on railway passenger cars typically involve manual pushing and splicing. However, due to the considerable weight of the passageways themselves, manual coupling and uncoupling is overly cumbersome, increasing the cost of coupling and uncoupling. Summary of the Invention

[0003] The purpose of this invention is to provide a through passageway extending from the front of a rail passenger car, which can facilitate easy coupling and uncoupling between two train sets of the same train.

[0004] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0005] A front-extending through passageway for a rail passenger vehicle, located at the end of the vehicle body, includes:

[0006] A fixed channel is fixedly installed at the end of the vehicle body, and a movable channel is installed within the fixed channel. A folding canopy body is fixedly installed at the end of the movable channel at one end of the vehicle body, and a folding canopy connecting frame is fixedly installed on the folding canopy body. A locking frame assembly is fixedly installed at the end of the other vehicle body. The folding canopy connecting frame and the locking frame assembly are detachably connected. A drive assembly and a guide rail assembly are installed in the fixed channel. The drive assembly drives the movable channel to move relative to the fixed channel along the guide rail assembly.

[0007] The aforementioned railcar features a front-extending through-passage, wherein the drive assembly includes an electric push rod, a reversing rack, a drive gear, and a drive rack. The reversing rack and the drive rack are both meshed with the drive gear. The reversing rack is fixedly installed at the end of the electric push rod, and the drive rack is fixedly installed at the bottom of the moving passage.

[0008] The aforementioned railcar features a front-extending through-passage, wherein the guide rail assembly includes a limiting slide rod fixedly connected to the fixed passage, a limiting sleeve slidably connected to the limiting slide rod, and the limiting sleeve being fixedly connected to the drive plate on the side near the drive plate. A sealing strip matching the moving passage is fixedly connected to the side of the spoiler at a position corresponding to the moving passage, and a brush is provided on the side of the sealing strip near the moving passage.

[0009] The aforementioned railcar features a front-extending through passageway, wherein the locking frame assembly includes a locking end frame mounted on the car body and a lock head mounted on the locking end frame.

[0010] The aforementioned railcar has a protruding through-passage at the front end, wherein a spoiler is installed on the moving passage, and the spoiler is positioned between the fixed passage and the moving passage.

[0011] The aforementioned railcar features a front-extending through passageway, wherein a pedal assembly is provided on the bottom of the car body. The pedal assembly includes a pedal body made of stainless steel, which can be folded to connect the ends of two car bodies.

[0012] The aforementioned railcar has a front-extending through passageway, wherein the drive gear has two layers of gear rings, the reversing rack meshes with one of the gear rings, and the drive rack meshes with the other gear ring.

[0013] The aforementioned railcar features a front-extending through passageway, wherein the folding canopy body is made of flexible tarpaulin, and the folding canopy connecting frame is made of aluminum profile.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0015] 1. In this invention, the through-channel is pushed out and retracted by a reversing gear driven by an electric push rod. A gear design integrating gears with different numbers of teeth is employed. A large pushing stroke can be achieved using an electric push rod with a relatively small stroke. By arranging the electric push rod and rack in an alternating direction, the entire drive mechanism can be installed within a small space.

[0016] 2. In this invention, the through-channel is installed using a nested arrangement of movable and fixed channels, with the larger nested end on the outside, to prevent airflow from directly entering the inner cavity through the seams. Sealing strips are added to the gaps to increase the airtightness of the through-channel, and brushes are used to reduce the airflow velocity at the gaps.

[0017] 3. This invention involves arranging spoilers at the joints of the moving and fixed passageways, creating a negative pressure structure at the gap between the moving and fixed passageways. This causes air inside the vehicle to flow outwards, improving passenger comfort. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the extended through passageway at the front end of the rail passenger vehicle according to the present invention;

[0020] Figure 2 This is a structural schematic diagram of the extended through passageway at the front end of the rail passenger vehicle of the present invention from another perspective;

[0021] Figure 3 This is a schematic diagram of the drive assembly in the front-end extended through passage of the rail passenger vehicle of the present invention;

[0022] Figure 4 This is a schematic diagram of the planar structure of the extended through passageway at the front end of the rail passenger vehicle according to the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the rail passenger car in the separated state of the extended through passage at the front end;

[0024] Figure 6 This is a schematic diagram of the structure of the rail passenger car in the docking state when the front-end extended through passage is connected.

[0025] Figure 7 This is a schematic diagram of the structure of the rail passenger car in the connected state of the extended through passage at the front end.

[0026] Explanation of icon numbers:

[0027] 1. Moving channel; 2. Fixed channel; 3. Folding canopy body; 4. Folding canopy connecting frame; 5. Vehicle body; 6. Locking frame assembly; 7. Pedal assembly; 8. Drive assembly; 9. Guide rail assembly; 10. Spoiler; 11. Exhaust vent;

[0028] 601. Locking end frame; 602. Lock head;

[0029] 701. Pedal body;

[0030] 801. Electric linear actuator; 802. Reversing rack; 803. Drive gear; 804. Drive rack; 805. Drive plate;

[0031] 8021, Fixed Slip Sleeve;

[0032] 901. Limiting slide bar; 902. Limiting slide sleeve;

[0033] 1001. Sealing strip; 1002. Brush. Detailed Implementation

[0034] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0035] Please refer to Figures 1 to 7 As shown, an embodiment of the present invention provides a front-end extended through passageway for a rail passenger vehicle, comprising: a movable passageway 1 and a fixed passageway 2 disposed within the movable passageway 1. The fixed passageway 2 is disposed at the end of the vehicle body 5, and the movable passageway 1 is slidably disposed inside the fixed passageway 2. Specifically, movable passageway 1 and fixed passageway 2 are provided at both ends of the vehicle body 5. A folding canopy body 3 is fixedly installed on the movable passageway 1 at one end of the same vehicle body 5, and a folding canopy connecting frame 4 is disposed on the folding canopy body 3 away from the end of the movable passageway 1 away from the vehicle body 5. A locking frame assembly 6 is provided on the movable passageway 1 at the other end of the same vehicle body 5. The folding canopy connecting frame 4 is detachably connected. A pedal assembly 7 is provided on the bottom of the vehicle body 5. The pedal assembly 7 includes a pedal body 701 made of stainless steel. The pedal body 701 can be folded up to connect the ends of the two vehicle bodies 5. A drive assembly 8 and a guide rail assembly 9 are also provided in the fixed channel 2. The drive assembly can control the movement of the moving channel 1 relative to the fixed channel 2 until the folding canopy connecting frame 4 and the locking frame assembly 6 can contact or separate. Specifically, when the fixed channels 2 on the two vehicle bodies 5 are close together, the drive assembly 8 and the guide rail assembly 9 can control the relative movement of the two moving channels 1, and the locking frame assembly 6 and the folding canopy connecting frame 4 can control the two vehicle bodies 5 to be connected or disconnected.

[0036] The mobile channel 1 is mainly composed of aluminum profiles and fiberglass materials. The frame is made of aluminum profiles and the cover is made of fiberglass materials. The mobile channel 1 can extend out of the car body 5, which can reduce the distance between the ends of two adjacent train sets, reduce the number of folding canopies, and facilitate the coupling of folding canopies.

[0037] The fixed channel 2 is mainly composed of aluminum profiles and fiberglass materials. The frame is made of aluminum profiles and the cover is made of fiberglass materials. The fixed channel 2 is installed on the end of the vehicle body 5. The fixed channel 5 separates the end of the vehicle body 5, isolating the interior space and the exterior space, and mainly serves a sealing function.

[0038] The moving channel 1 is equipped with a spoiler 10 at its end. The spoiler 10 is located between the fixed channel 2 and the moving channel 1. A sealing strip 1001 is installed on the side of the spoiler 10. A brush 1002 is provided on one side of the sealing strip 1001. The brush 1002 abuts against the inner wall of the fixed channel 2. Under the sealing action of the brush 1002 and the sealing strip 1001, the gap between the fixed channel 2 and the moving channel 1 is sealed, which can reduce wind noise.

[0039] Among them, the bottom of the fixed channel 2 is also provided with an exhaust vent 11;

[0040] By adopting the above technical solution, the air flowing into the space between the outside of the through passage and the vehicle body flows away along the exhaust port 11, reducing wind noise;

[0041] By adopting the above technical solution, the spoiler 10 is mainly made of resin material, which makes the fast-flowing air flow in a certain direction and makes the air inside the vehicle flow to the outside. The brush 1002 plays a role in obstructing the air flow and reducing the air velocity between the gaps in the passage. The sealing strip 1001 can seal the gap between the moving channel 1 and the fixed channel 2, and increase the sealing performance of the passage.

[0042] The folding tent body 3 is made of flexible tarpaulin, and the folding tent connecting frame 4 is made of aluminum profile.

[0043] By adopting the above technical solution, the canopy body 3 can adapt to the vehicle's motion curve, while the spoiler 10 can provide shelter from wind and rain.

[0044] The locking frame assembly 6 includes a locking end frame 601 mounted on the vehicle body 5 and a lock head 602 mounted on the locking end frame 601.

[0045] Lock heads 602 are evenly distributed on the locking end frame 601. Lock heads 602 and folding canopy connecting frame 4 are detachably connected. Preferably, lock heads 602 and folding canopy connecting frame 4 are connected to each other by a movable snap-fit. By adopting the above technical solution, the folding canopy body 3 can be connected to the vehicle end to form a through channel by manually driving the lock heads 602 to move.

[0046] Among them, the pedal assembly 7 includes a pedal body 701 made of stainless steel.

[0047] By adopting the above technical solutions, passengers can move freely between vehicles without falling.

[0048] The drive assembly 8 includes an electric push rod 801, a reversing rack 802, a drive gear 803, and a drive rack 804. The electric push rod 801 is slidably mounted on the fixed channel 2 via a fixed sliding sleeve. The reversing rack 802 is fixedly connected to the output end of the electric push rod 801. The drive gear 803 is provided with gear rings of different diameters, and the gear rings have at least two layers. One gear ring on the drive gear 803 meshes with the reversing rack 802, and the drive gear 803 is mounted on the fixed channel 2. The other gear ring of the drive gear 803 meshes with the drive rack 804. A drive plate 805 for telescopic movement is fixedly connected to the drive rack 804, and the drive plate 805 is mounted at the bottom of the moving channel 1.

[0049] By adopting the above technical solution, the electric push rod 801 drives the reversing rack 802 to move, thereby driving the drive gear 803 to rotate under the meshing action of the drive gear 803. The drive gear 803, in turn, drives the drive rack 804 to move under the meshing action of the teeth, thus driving the drive plate 805 to move, thereby achieving the function of advancing and retracting the through passage. Because the drive assembly 8 has a flat structure, it occupies less space, which is beneficial for the space utilization in the through passage.

[0050] The guide rail assembly 9 includes a limiting slide rod 901 fixedly connected to the fixed channel 2. A limiting slide sleeve 902 matching the limiting slide rod 901 is slidably connected to the limiting slide rod 901, and the side of the limiting slide sleeve 902 near the drive plate 805 is fixedly connected to the drive plate 805.

[0051] By adopting the above technical solution, the drive board 805 is limited, thereby increasing the stability of the reciprocating movement of the drive board 805, so that the moving channel slides along the fixed track and restricts the shaking of the moving channel.

[0052] The working principle of this invention is as follows: After the ends of the two vehicle bodies 5 approach each other, the moving channel 1 is driven to move from the fixed channel 2 until the folding canopy connecting frame 4 and the locking end frame 601 on the two moving channels 1 are in contact. The locking head 602 can be moved to connect the two moving channels 1, thereby connecting the two vehicle bodies 5. Specifically, the moving channel 1 and the fixed channel 2 are installed in a nested state. The folding canopy body 3 of the left through channel is in a compressed state; the locking head 602 of the locking end of the right through channel is unlocked, the pedal body 701 is in a retracted state, the electric push rod 801 is retracted by the electric switch, the reversing rack 802 is pushed to make the moving channel 1 extend out of the vehicle body, the pedal body 701 is manually lowered, the folding canopy body 3 is pulled out, and the folding canopy connecting frame 4 is pushed into the locking end frame 601. The locking head 602 is manually rotated to lock the connecting frame in the end frame.

[0053] Reversing the above steps results in the uncoding process of the through channel;

[0054] It is worth noting that:

[0055] 1. The standard product electric actuator 801 is selected. The voltage standard for driving the electric actuator 801 is not limited in this implementation method. The electric actuator 801 that is safer for personnel and occupies less space is selected according to the application site environment. The electric actuator 801 is equipped with limit switches and encoder feedback, which can be easily connected to the vehicle control system.

[0056] 2. The electric push rod 801 has a self-locking function, which can be locked immediately after the through channel is pushed out.

[0057] 3. Because the front-extending through-passage is installed at the front connection of the vehicle, the sealing of the entire through-passage is crucial. If too much air enters the vehicle body through the gaps, it will greatly affect the comfort of the passengers. In terms of structural design, the movable channel 1 and the fixed channel 2 are designed to be nested. The movable channel 1 is fitted with the fixed channel 2, and the fixed channel 2 and the vehicle body are curved and sealed. The gap between the through-passages is on the leeward side of the spoiler 10 to prevent air from directly entering the vehicle body. The spoiler 10 is set at the gap between the fixed channel 2 and the movable channel 1 to form a structure similar to the negative pressure structure inside the vehicle when a sunroof is opened slightly. The sealing strip 1001 and the brush 1002 are set at the gap to further increase the sealing of the through-passage and reduce the airflow velocity at the gap, creating a more comfortable riding experience.

[0058] 4. To address wind noise in the through passageway, an exhaust vent 11 is installed at the bottom of the fixed passageway 2. Air entering from the open door flows out through the lower exhaust vent, reducing wind noise.

[0059] 5. The moving track of moving channel 1 is made of linear module, which has high precision. Combined with the rigid through-channel structure, it can effectively limit the up, down and left and right swaying of moving channel 1.

[0060] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A through passageway extending from the front end of a rail passenger vehicle, located at the end of the vehicle body (5), characterized in that, include: A fixed channel is fixedly installed at the end of the vehicle body (5) and a movable channel is installed in the fixed channel. A folding canopy body (3) is fixedly installed at the end of the movable channel at the end of one of the vehicle bodies (5). A folding canopy connecting frame (4) is fixedly installed on the folding canopy body (3). A locking frame assembly (6) is fixedly installed at the end of the other vehicle body. The folding canopy connecting frame (4) and the locking frame assembly (6) are detachably connected. A drive assembly (8) and a guide rail assembly (9) are installed in the fixed channel. The drive assembly (8) drives the movable channel to move relative to the fixed channel along the guide rail assembly (9). The drive assembly (8) includes an electric push rod (801), a reversing rack (802), a drive gear (803), and a drive rack (804). The reversing rack (802) and the drive rack (804) are both meshed on the drive gear (803). The reversing rack (802) is fixedly installed at the end of the electric push rod (801), and the drive rack (804) is fixedly installed at the bottom of the moving channel. A drive plate (805) for telescopic movement is fixedly connected to the drive rack (804). The guide rail assembly (9) includes a limiting slide rod (901) fixedly connected to the fixed channel. A limiting sleeve (902) matching the limiting slide rod (901) is slidably connected to the limiting slide rod (901), and the limiting sleeve (902) is fixedly connected to the drive plate (805) on the side close to the drive plate (805). The locking frame assembly (6) includes a locking end frame (601) mounted on the vehicle body (5) and a lock head (602) mounted on the locking end frame (601). The moving channel is equipped with a spoiler (10), which is located between the fixed channel and the moving channel. A sealing strip (1001) matching the moving channel is fixedly connected to the side of the spoiler (10) and the position corresponding to the moving channel. A brush (1002) is provided on the side of the sealing strip (1001) near the moving channel. Among them, a pedal assembly (7) is provided on the bottom of the vehicle body (5). The pedal assembly (7) includes a pedal body (701) made of stainless steel. The pedal body (701) can be folded to connect the ends of the two vehicle bodies (5). The drive gear (803) has two gear rings. The reversing rack (802) meshes with one of the gear rings, and the drive rack (804) meshes with the other gear ring. Gears with different numbers of teeth are integrated into one gear. The entire drive mechanism can be installed in a small space by means of an electric push rod and the rack arranged in an alternating direction.

2. The rail passenger car front-end extended through passageway according to claim 1, characterized in that: The folding tent body (3) is made of flexible tarpaulin, and the folding tent connecting frame (4) is made of aluminum profile.

Images