WO2021017758A1

WO2021017758A1 - Rail car

Info

Publication number: WO2021017758A1
Application number: PCT/CN2020/100287
Authority: WO
Inventors: 陈锡阳; 陈俊恺
Original assignee: 东莞开道科技有限公司
Priority date: 2019-07-30
Filing date: 2020-07-04
Publication date: 2021-02-04
Also published as: CN110329288A

Abstract

Provided is a rail car, which comprises a carriage (20), the carriage (20) comprises a front (21) and a rear (22), wherein, the front (21) and/or the rear (22) are covered with a flexible housing (3) with an airbag structure; when the flexible housing (3) is in the unfolded state, the rail car has a streamlined structure as a whole. The rail car is provided with the flexible housing (3) with the air bag structure on the rear (22) of the carriage (20), therefore, when any rail car is running independently, it has a streamlined structure with low wind resistance, and when multiple rail cars are connected end to end into a train, seamless docking can be realized, which reduces the wind resistance of the train, has a smaller wind resistance than traveling alone, and reduces the energy consumption of the rail cars. In addition, when the rail car collides, under the buffering effect of the flexible housing (3) in the unfolded state, the impact force is effectively slowed down, and the purpose of protecting the carriage (20) and passengers is achieved.

Description

subway

Technical field

The present invention relates to the technical field of rail transportation, in particular to a rail car with an airbag structure.

Background technique

Air rail train (referred to as air rail) is a suspended monorail transportation system. The track is above the train, supported by steel or concrete pillars in the air. Because the air-rail transportation system moves ground transportation to the air, it can alleviate urban traffic problems without expanding the existing road facilities in the city; and because it only moves the track to the air, instead of being like an elevated light rail or a riding monorail Lifting the entire road into the air, thus overcoming the shortcomings of other rail transit systems, has many outstanding features and advantages in terms of construction and operation.

technical problem

The rail cars currently used in the air rail transit system all use the traditional carriage structure. This kind of rail car not only has a large drag coefficient when running at high speed, but also if a collision occurs during the driving process, the rigid collision force generated by it will give The car body still causes damage to the passengers in the car body, so the safety performance of this kind of rail car is relatively low, and it is not suitable for high-speed driving.

Technical solutions

The purpose of the present invention is to provide a rail car with low drag coefficient and supporting high-speed running.

In order to achieve the above objective, the present invention discloses a rail car, including a carriage, the carriage includes a front and a rear, and a flexible shell with an airbag structure is covered on the front and/or the rear; when the flexible shell When in the unfolded state, the rail car as a whole has a streamlined structure that gradually shrinks toward the front and rear of the car.

Compared with the prior art, the rail car of the present invention is covered with a flexible shell with an airbag structure on the front and/or rear of the car, so that air can be filled into the flexible shell when the rail car is running, so that The flexible shell is unfolded, and when any rail car is running independently, it has a streamlined structure with low wind resistance. When multiple rail cars are connected together to form a train, the air in the flexible shell can be released to make it In a soft and contracted state, the seamless connection of the rail cars is realized, which reduces the wind resistance of the connected trains as a whole, making the wind resistance smaller than that of traveling alone; in addition, if the rail cars collide, they are flexible in the expanded state Under the cushioning effect of the shell, the impact force can be effectively slowed down, and the purpose of protecting the carriage and passengers is achieved. Moreover, when the flexible shell is in the unfolded state, the rail car as a whole is in a streamlined shape that gradually shrinks toward the front and rear of the vehicle. The structure effectively reduces the overall drag coefficient of the carriage, thereby reducing the resistance of the rail car in high-speed traveling, and reducing the energy consumption and noise of the rail car.

Preferably, the flexible housing has an opening, and the flexible housing is connected to the carriage through the opening, and a first closed cavity is formed between the flexible housing and the carriage.

Preferably, a first air inlet passage is provided at the junction of the flexible casing and the compartment or on the side wall of the flexible casing, and the airflow can enter the first closed cavity through the first air inlet passage .

Preferably, the flexible housing is a closed structure with a second closed cavity formed by the inner wall of the flexible housing.

Preferably, a second air inlet passage communicating with the second closed cavity is provided on the flexible housing, and the airflow enters the second closed cavity through the second air inlet passage.

Preferably, the rail car further includes an air delivery device communicating with the flexible housing, so that the flexible housing is in an unfolded state.

Preferably, the compartment further includes a roof, a sleeve extending back and forth is provided on the roof, and a movable rod that can slide back and forth along the sleeve is provided in the sleeve. The end is connected with the flexible shell.

Preferably, a connecting piece and a connecting fitting piece that cooperate with each other are provided on the roof of the vehicle at the front and the rear of the vehicle, and the connecting piece and the connecting fitting piece can be used to connect the front and rear vehicles. The rail cars are connected together.

Preferably, a driving wheel mechanism and a driven wheel mechanism are provided on the roof of the vehicle at the front and the rear of the vehicle, and the connecting piece and the connecting fitting piece are respectively installed on the driving wheel. The mounting frame of the mechanism and the mounting frame of the driven wheel mechanism.

Preferably, the connecting fitting can move forward and backward relative to the mounting frame of the driven wheel mechanism.

Preferably, the connecting piece is provided with a first electrical connector, and the connecting fitting piece is provided with a second electrical connector. When the connecting piece and the connecting fitting piece are connected together, the first electrical connector An electrical connector is electrically connected to the second electrical connector.

Beneficial effect

Description of the drawings

Fig. 1 is a schematic diagram of the working state of the rail car in the embodiment of the present invention.

Figure 2 is a schematic diagram of a three-dimensional structure of a rail car in an embodiment of the present invention.

FIG. 3 is a schematic diagram of the three-dimensional structure of the flexible housing in the first implementation of the embodiment of the present invention.

FIG. 4 is a schematic diagram of a three-dimensional structure of a flexible housing in a second implementation manner in an embodiment of the present invention.

FIG. 5 is a schematic diagram of the combination of the front shell and the flexible shell in the embodiment of the present invention.

Fig. 6 is a schematic diagram of the installation structure of the sleeve and the movable rod in the embodiment of the present invention.

FIG. 7 is a schematic diagram of the front side of the flexible housing in FIG. 5.

Fig. 8 is a schematic diagram of the rear side of the flexible housing in Fig. 5.

Fig. 9 is a schematic diagram of the combined state of the connecting piece and the connecting fitting in the embodiment of the present invention.

Fig. 10 is an exploded schematic view of the installation structure of the connection fitting in Fig. 9.

The best mode of the invention

In order to explain in detail the technical content, structural features, implementation principles, and achieved objectives and effects of the present invention, the following detailed descriptions are given in conjunction with the embodiments and accompanying drawings.

As shown in Figures 1 to 4, the present invention discloses a rail car. The rail car is suspended on a rail beam 1 and walks along the rail beam 1. The rail car includes a carriage 20, and the carriage 20 includes a head 21, a tail 22 and The roof 23 and the rear 22 are covered with a flexible shell 3 with an airbag structure, that is, the flexible shell 3 can be inflated and deployed. When the flexible shell 3 is in the unfolded state, the rail car as a whole appears from the rear 22 Streamlined structure that gradually shrinks backwards. It should be noted that the flexible shell 3 can also be covered on the front 21, or on the front 21 and the rear 22 at the same time. Preferably, in this embodiment, only the rear 22 is covered with the flexible shell 3, and the front 21 is a rigid shell. When the rail car is in the process of moving, the flexible shell 3 can be inflated and deployed to form an airbag. In this way, when two rail cars collide with each other, the flexible shell 3 in the deployed state can effectively slow down the collision force, thereby achieving effective The purpose of protecting the compartment 20 and passengers. In addition, when the rail car with the above structure is connected together to form a train, the air in the flexible shell 3 can be released to make it in a soft state. When the vehicles are docked, the front 21 of the rear rail car can be inserted into the front rail. In the flexible shell 3 of the train (as shown in Fig. 5), the seamless connection of multiple rail cars is achieved, which further reduces the overall drag coefficient of the train. Furthermore, according to the principle of fluid mechanics, generally speaking, when a vehicle is running at a high speed, the resistance caused by the appearance comes from the vacuum area behind the vehicle. The larger the vacuum area, the greater the resistance. In this embodiment, because of the flexibility When the shell 3 is in the unfolded state, its appearance is a streamlined structure that gradually shrinks backward from the rear 22 of the vehicle, which effectively reduces the airflow vacuum area behind the vehicle 20 to achieve the purpose of reducing wind resistance. The flexible shell 3 in this embodiment is in the shape of a drop when it is in the unfolded state, thereby minimizing the drag coefficient of the cabin 20. The flexible housing 3 in this embodiment may be a material that can form an airbag structure, such as plastic material, cloth, etc. The flexible housing 3 is fixed to the rear 22 of the vehicle by rivets, bonding or other methods.

Regarding the airbag structure of the flexible housing 3, the present invention discloses two specific embodiments. One is, as shown in FIG. 3, the flexible housing 3 has an opening 35, and the flexible housing 3 is connected to the rear end 22 through the opening 35. A first closed cavity 30 is formed between the flexible shell 3 and the rear 22 of the vehicle. The flexible shell 3 is blown up to the unfolded state by inflating gas into the first closed cavity 30. In this embodiment, A first air inlet passage is provided at the junction of the flexible housing 3 and the rear end 22 or the side wall of the flexible housing 3, and the airflow enters the first closed cavity 30 through the first air inlet passage. When the first air intake passage is arranged at the junction of the flexible housing 3 and the rear 22, the first air intake passage may be formed by the gap 32 between the flexible housing 3 and the compartment 20 (as shown in Figure 1). When the air channel is arranged on the side wall of the flexible housing 3, the first air inlet channel may be an air hole 31 opened on the flexible housing 3 (as shown in FIG. 3). The airflow caused by the rail car is poured into the first closed cavity 30 through the first air inlet channel, thereby blowing up the flexible shell 3 to the expanded state. When the rail car stops running, the high pressure in the first closed cavity 30 Air can also flow out through the first air inlet passage, so that the flexible housing 3 is in a soft state. In this embodiment, the first closed cavity 30 is enclosed by the flexible shell 3 and the rear 22 together.

Regarding the airbag structure of the flexible housing 3, the second embodiment is, as shown in FIG. 4, the flexible housing 3 is a closed structure with a second closed cavity 34 formed by the inner wall of the flexible housing 3 inside. In this embodiment, the second closed cavity 34 is constituted by the flexible housing 3 itself. Then, a second air inlet passage communicating with the second closed cavity 34 can be provided on the flexible housing 3, and the airflow passes through the second inlet. The air passage enters the second closed cavity 34. The high-speed airflow caused when the rail car is running enters the second closed cavity 34 through the second air inlet channel, thereby blowing up the flexible housing 3 to the expanded state. In this embodiment, the second air inlet channel is also the air hole 31 provided on the flexible housing 3.

Please refer to FIGS. 3 to 7 in combination. For the airbag structure of the above two structures, it is also possible to blow into the first closed cavity 30 or the second closed cavity 34 through an air delivery device connected with the flexible housing 3 In order to make the flexible housing 3 in the unfolded state. In this embodiment, the air delivery device can be an air pump 5. The air pump 5 can be installed in the first closed cavity 30 or the second closed cavity 34, or on the carriage 20 outside the flexible housing 3, The housing 3 is provided with an air nozzle 33 connected to the air pump 5. When the rail car is started, the air pump 5 is started and inflated into the flexible housing 3 through the air nozzle 33 to ensure that the flexible housing 3 is in a fully expanded state. It should be noted that when the air pump 5 is installed, there is no need to open an air hole 31 on the flexible housing 3, and the external airflow enters and exits the flexible housing 3 through the air nozzle 33.

As shown in Figure 2 and Figure 5, when multiple rail cars are connected to each other, in order to further reduce the gap 32 between the front 21 and the rear 22 of the two rail cars, the front 21 of the rail car A rigid front shell 4 can also be protrudingly provided. Through the protruding front shell 4, when two rail cars are connected together, the flexible shell 3 on the front rail car wraps the front shell 4 on the rear rail car. , Thereby further reducing the gap 32 formed when the rail car is connected. In this embodiment, the outer wall of the front shell 4 has a streamlined yurt-like structure, which achieves the purpose of further reducing the wind resistance coefficient of the whole vehicle, thereby achieving seamless connection between the front shell 4 and the flexible shell 3.

Please refer to Figures 1 and 8, a sleeve 60 extending back and forth can also be provided on the roof 23. The sleeve 60 is provided with a movable rod 61 that can slide back and forth along the sleeve 60. The rear end of the movable rod 61 Connect with the flexible housing 3. In this embodiment, a piston structure is formed between the sleeve 60 and the movable rod 61. When the flexible housing 3 is in a deflated state, the movable rod 61 can provide a supporting force for the flexible housing 3 to avoid the rear of the flexible housing 3. When the flexible shell 3 is gradually blown up, it drives the movable rod 61 to be pulled out from the sleeve 60. In addition, due to the cooperation of the sleeve 60 and the movable rod 61, when two rail cars collide, if the movable rod 61 is collided with the front 21 of the rear rail car, the movable rod 61 will slide forward rapidly along the sleeve 60, Then inside the sleeve 60, between the end of the movable rod 61 located in the sleeve 60 and the inner wall of the front end of the sleeve 60, a reverse blocking airflow is formed to block the forward movement of the movable rod 61, and the effect of blocking the airflow in the reverse direction is Down, the forward movement speed of the movable rod 61 is slowed down, thereby slowing the forward movement of the carriage 20 under the force of the collision, and reducing the impact force of the collision on the human body and the vehicle. In this embodiment, there is a gap between the movable rod 61 and the sleeve 60 for air to enter and exit, so that air can slowly enter and exit the sleeve 60 to achieve the purpose of buffering collision.

In order to facilitate the head-to-tail connection of multiple rail cars, please refer to Figures 2 and 9 in combination. In another preferred embodiment of the rail car of the present invention, a matching pair is provided on the roof 23 at the front 21 and the rear 22 respectively. The connecting piece 70 and the connecting fitting piece 71 can connect the front and rear rail cars together through the connecting piece 70 and the connecting fitting piece 71. In this embodiment, a driving wheel mechanism 80 and a driven wheel mechanism 81 are provided on the roof 23 at the front 21 and the rear 22 respectively, and the connecting piece 70 and the connecting fitting 71 are respectively mounted on the mounting frame of the driving wheel mechanism 80 On the mounting frame 810 of 800 and the driven wheel mechanism 81, the connecting piece 70 is an elastic hook, and the connecting fitting 71 is a hanging block that is adapted to the elastic hook. When the connecting piece 70 and the connecting fitting 71 are connected together, in order to further avoid the linkage collision effect caused by impact, as shown in FIG. 10, the connecting fitting 71 can move forward and backward relative to the mounting frame 810 of the driven wheel mechanism 81. Specifically, A sliding groove 90 is provided on the mounting frame 810 of the driven wheel mechanism 81, and the connecting fitting 71 is slidably connected to the sliding groove 90 through a connecting rod 91. When the connecting fitting 71 receives an impact force in the front and rear directions, the connecting rod 91 drives the connecting and fitting The piece 71 moves forward along the chute 90 to reduce the collision force. In addition, a first electrical connector 700 may be provided on the connecting member 70, and a second electrical connector may be provided on the connecting fitting 71. When the connecting member 70 and the connecting fitting 71 are connected together, the first electrical connector 700 It is electrically connected to the second electrical connector 710. When a train is composed of rail cars with the above structure, if the power supply on one of the rail cars is interrupted, the first electrical connector 700 and the second electrical connector 710 can be connected by other rail cars connected to power sources. Power it.

The above-disclosed are only preferred examples of the present invention, which of course cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made in accordance with the scope of the patent application of the present invention still fall within the scope of the present invention.

Industrial applicability

The invention has industrial applicability.

Claims

A rail car, characterized by comprising a carriage, the carriage including a front and a rear, and a flexible shell with an airbag structure is covered on the front and/or the rear; when the flexible shell is in a deployed state The rail car as a whole has a streamlined structure that gradually shrinks toward the front and rear of the car.
The rail car according to claim 1, wherein the flexible housing has an opening, the flexible housing is connected to the carriage through the opening, and the flexible housing is connected to the carriage. A first closed cavity is formed between.
The rail car according to claim 2, wherein a first air inlet channel is provided at the junction of the flexible shell and the carriage or on the side wall of the flexible shell, and the airflow can pass through the first inlet The air passage enters the first closed cavity.
The rail car according to claim 1, wherein the flexible shell is a closed structure with a second closed cavity formed by the inner wall of the flexible shell.
The rail car according to claim 4, wherein a second air inlet passage communicating with the second closed cavity is provided on the flexible shell, and airflow enters the second air inlet passage through the second air inlet passage. The second closed cavity.
The rail car according to claim 1, further comprising an air delivery device communicating with the flexible shell, so that the flexible shell is in an unfolded state.
The rail car according to claim 1, wherein the carriage further comprises a roof, a sleeve extending forward and backward is arranged on the roof, and a sleeve is arranged in the sleeve which can slide back and forth along the sleeve. The movable rod, the rear end of the movable rod is connected with the flexible shell.
The rail car according to claim 1, wherein a connecting piece and a connecting fitting piece that cooperate with each other are provided on the roof at the front and the rear of the vehicle, and the connecting piece and the The connecting fittings can connect the front and rear rail cars together.
The rail car according to claim 8, wherein a driving wheel mechanism and a driven wheel mechanism are provided on the roof of the vehicle at the front and the rear of the vehicle, and the connecting member and the The connecting fittings are respectively installed on the mounting frame of the driving wheel mechanism and the mounting frame of the driven wheel mechanism.
The rail car according to claim 9, wherein the connecting fitting is capable of telescoping back and forth relative to the mounting frame of the driven wheel mechanism.
The rail car according to claim 8, wherein a first electrical connector is provided on the connecting piece, and a second electrical connector is provided on the connecting mating piece. When the connecting piece is connected to the connecting piece When the mating parts are connected together, the first electrical connector is electrically connected with the second electrical connector.