Air duct connecting structure of motor train unit

Abstract

The utility model discloses a motor train unit air duct connecting structure which comprises a mounting plate and further comprises sliding grooves formed in the two ends of the outer wall of the bottom of the mounting plate, sliding blocks are connected to the inner walls of the two sliding grooves in a sliding mode, connecting pipes are installed at the bottoms of the two sliding blocks, a telescopic pipe is connected between the two connecting pipes, and the telescopic pipe is connected with the mounting plate. An adjusting assembly is mounted at one end of the bottom outer wall of the mounting plate. According to the motor train unit air duct connecting structure, when a motor train generates large vibration, the controller controls the adjusting assembly to reduce the distance between the two connecting pipes, so that the sealing assembly is separated from one end of the air duct pipe and makes contact with the rubber sleeve, and when the air duct pipe and the connecting pipes vibrate relatively, the air duct pipe will extrude the rubber sleeve; a certain movement space is provided for the air duct pipe while certain connection sealing performance is ensured, and the situation that the air duct pipe and the connecting pipe are deformed or damaged and the service life is shortened due to the fact that the joint of the air duct pipe and the connecting pipe is subjected to overlarge stress is avoided.

Description

Technical Field

[0001] This utility model relates to the field of air duct connection technology, specifically to an air duct connection structure for high-speed trains. Background Technology

[0002] The air ducts in high-speed trains are designed to deliver treated air to various areas within the carriages to meet passenger comfort and equipment operational requirements. Connecting structures are used between the duct ducts to ensure the system's sealing, stability, and reliability. While current connecting structures effectively link the ducts, the connections are typically quite tight to maintain a good seal. Although this ensures a good seal, vibrations occur during train operation.

[0003] When there is significant vibration, the connection between the duct and the connecting structure will be subjected to excessive stress, which can easily lead to deformation or damage to the duct and the connecting structure, reducing their service life. Utility Model Content

[0004] The purpose of this invention is to provide a high-speed train air duct connection structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-speed train air duct connection structure, comprising: a mounting plate, and further comprising: sliding grooves formed at both ends of the bottom outer wall of the mounting plate, with sliders slidably connected to the inner walls of both sliding grooves, and connecting pipes installed at the bottom of both sliders, with a telescopic pipe connecting the two connecting pipes, and an adjustment component installed at one end of the bottom outer wall of the mounting plate, the two ends of the adjustment component being rotatably connected to the outer walls of the two sliders respectively, and sealing components installed on the inner walls of both connecting pipes, with rubber sleeves adhered to the inner walls of one end of both connecting pipes, and a controller and a vibration sensor installed on the bottom outer wall of the mounting plate.

[0006] The adjustment assembly includes a vertical plate, an electric push rod installed on one side of the outer wall of the vertical plate, and two traction rods rotatably installed on one end of the piston rod of the electric push rod.

[0007] The sealing assembly includes a fixed ring, multiple equidistant elastic rods movably inserted into the outer wall of one side of the fixed ring, a mounting ring installed at one end of the elastic rods, and a sealing ring adhered to the outer wall of one side of the mounting ring.

[0008] The elastic rod includes a movable rod and a spring sleeved on the outside of the movable rod.

[0009] Both the electric push rod and the vibration sensor are connected to the controller via signal lines.

[0010] The mounting plate has through mounting holes at each of the four corners of its top outer wall.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model discloses a high-speed train air duct connection structure. When the high-speed train experiences significant vibration, the controller controls the adjustment component to reduce the distance between the two connecting pipes. This causes the air duct to move a certain distance relative to the inner wall of the connecting pipe, but not completely out of the connecting pipe. This allows the sealing component to separate from one end of the air duct. At this point, one end of the air duct moves into the rubber sleeve and contacts it. When the air duct and the connecting pipe vibrate relative to each other, the air duct will squeeze the rubber sleeve. While ensuring a certain degree of connection sealing, this provides the air duct with a certain amount of room to move, preventing excessive stress at the connection between the air duct and the connecting pipe, which could lead to deformation or damage to the air duct and the connecting pipe and reduce their service life. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the present invention;

[0014] Figure 2 This is an external structural view of the present invention;

[0015] Figure 3 This is a structural diagram of the adjustment component of this utility model;

[0016] Figure 4 This is a structural diagram of the sealing component of this utility model.

[0017] In the diagram: 1. Mounting plate; 2. Slide groove; 3. Slider; 4. Connecting pipe; 5. Telescopic pipe; 6. Adjustment assembly; 601. Vertical plate; 602. Electric push rod; 603. Traction rod; 7. Sealing assembly; 701. Fixing ring; 702. Elastic rod; 702-1. Movable rod; 702-2. Spring; 703. Mounting ring; 704. Sealing ring; 8. Rubber sleeve; 9. Vibration sensor; 10. Controller; 11. Air duct; 12. Fixing component. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4The present invention provides a high-speed train air duct connection structure, comprising: a mounting plate 1, and further comprising: sliding grooves 2 formed at both ends of the bottom outer wall of the mounting plate 1, with sliders 3 slidably connected to the inner walls of the two sliding grooves 2, and connecting pipes 4 installed at the bottom of the two sliders 3, with a telescopic pipe 5 connecting the two connecting pipes 4, and an adjustment component 6 installed at one end of the bottom outer wall of the mounting plate 1, with both ends of the adjustment component 6 rotatably connected to the outer walls of the two sliders 3 respectively, and sealing components 7 installed on the inner walls of the two connecting pipes 4, with rubber sleeves 8 glued to the inner walls of one end of the two connecting pipes 4, and a controller 10 and a vibration sensor 9 installed on the bottom outer wall of the mounting plate 1.

[0020] It should be noted that the two air ducts 11 can be fixed to both sides of the telescopic pipe 5. The distance between the two connecting pipes 4 can be widened by adjusting the assembly 6, so that the two air ducts 11 are inserted into the two connecting pipes 4 respectively, and the sealing assembly 7 presses against one end of the air duct 11 to improve the sealing performance. Airflow can be transported within the air ducts 11. The mounting plate 1 is installed inside the train. The vibration sensor 9 can monitor the vibration of the train and transmit the data to the controller 10. When the train vibrates significantly, the controller 10 controls the adjusting assembly 6 to narrow the distance between the two connecting pipes 4, so that the air duct 11 moves a certain distance relative to the inner wall of the connecting pipe 4, but does not completely exit the connecting pipe. The pipe 4 is moved out, causing the sealing component 7 to separate from one end of the duct 11. At this time, one end of the duct 11 moves into the rubber sleeve 8 and contacts the rubber sleeve 8. When the duct 11 and the connecting pipe 4 vibrate relative to each other, the duct 11 will squeeze the rubber sleeve 8. While ensuring a certain degree of connection sealing, it also gives the duct 11 a certain amount of room to move, avoiding excessive stress at the connection between the duct 11 and the connecting pipe 4, which could lead to deformation or damage to the duct 11 and the connecting pipe 4 and reduce their service life. When the vibration sensor 9 detects that the vibration decreases, the controller 10 controls the adjusting component 6 to expand the distance between the two connecting pipes 4, so that the sealing component 7 presses against one end of the duct 11 to ensure a tight connection.

[0021] In a preferred embodiment, the adjustment assembly 6 includes a vertical plate 601, an electric push rod 602 mounted on one side of the outer wall of the vertical plate 601, and two traction rods 603 rotatably mounted on one end of the piston rod of the electric push rod 602.

[0022] It should be noted that during the outward extension and retraction of the piston rod of the electric push rod 602, the two sliders 3 can be pulled away from or move closer to each other by the two traction rods 603, thereby adjusting the distance between the two connecting pipes 4.

[0023] In a preferred embodiment, the sealing assembly 7 includes a retaining ring 701, a plurality of equidistant elastic rods 702 movably inserted into one side of the outer wall of the retaining ring 701, a mounting ring 703 installed at one end of the elastic rods 702, and a sealing ring 704 bonded to one side of the outer wall of the mounting ring 703; the elastic rods 702 include a movable rod 702-1 and a spring 702-2 sleeved on the outside of the movable rod 702-1.

[0024] It should be noted that when the air duct 11 is inserted into the connecting pipe 4, it can press on the sealing ring 704 and compress the spring 702-2. The reaction force of the spring 702-2 is used to press the sealing ring 704 onto one end of the air duct 11, thereby improving the sealing performance between the air duct 11 and the inner wall of the connecting pipe 4.

[0025] In a preferred embodiment, both the electric actuator 602 and the vibration sensor 9 are connected to the controller 10 via signal lines.

[0026] It should be noted that the controller 10 can control the electric push rod 602 based on the vibration data monitored by the vibration sensor 9.

[0027] In a preferred embodiment, the four corners of the top outer wall of the mounting plate 1 are provided with through mounting holes.

[0028] It should be noted here that this is to facilitate the fixing of mounting plate 1.

[0029] Working principle: Two air ducts 11 can be fixed to both sides of the telescopic tube 5 respectively. The piston rod of the electric push rod 602 can extend outward. The two sliders 3 are pushed away from each other by the two traction rods 603, thereby increasing the distance between the two connecting tubes 4. The two air ducts 11 are inserted into the two connecting tubes 4 respectively. When the air ducts 11 are inserted into the connecting tubes 4, they can press on the sealing ring 704 and squeeze the spring 702-2. The reaction force of the spring 702-2 is used to press the sealing ring 704 on one end of the air duct 11, improving the connection and sealing between the air duct 11 and the inner wall of the connecting tube 4. Airflow can be transported in the air duct 11.

[0030] The vibration sensor 9 monitors the vibration of the train and transmits the data to the controller 10. When the train vibrates significantly, the controller 10 controls the piston rod of the electric push rod 602 to retract by a certain length, thereby reducing the distance between the two connecting pipes 4. This causes the air duct 11 to move a certain distance relative to the inner wall of the connecting pipe 4, but not completely out of the connecting pipe 4. This causes the sealing ring 704 to separate from one end of the air duct 11. At this point, one end of the air duct 11 moves into the rubber sleeve 8 and contacts the rubber sleeve 8. The air duct 11 and the connecting pipe 4... During relative vibration, the duct 11 will compress the rubber sleeve 8, ensuring a certain degree of connection sealing while providing the duct 11 with a certain amount of room to move. This prevents the connection between the duct 11 and the connecting pipe 4 from being subjected to excessive stress, which could lead to deformation or damage to the duct 11 and the connecting pipe 4, reducing their service life. When the vibration sensor 9 detects that the vibration is decreasing, the controller 10 controls the piston rod of the electric push rod 602 to extend outward, widening the gap between the two connecting pipes 4, so that the sealing ring 704 presses against one end of the duct 11, ensuring a tight connection.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A ventilation duct connection structure for high-speed trains, comprising: Mounting plate (1); The invention is characterized by further comprising: sliding grooves (2) formed at both ends of the bottom outer wall of the mounting plate (1), with sliders (3) slidably connected to the inner walls of the two sliding grooves (2), and connecting pipes (4) installed at the bottom of the two sliders (3), with telescopic pipes (5) connected between the two connecting pipes (4), and an adjustment component (6) installed at one end of the bottom outer wall of the mounting plate (1), with the two ends of the adjustment component (6) rotatably connected to the outer walls of the two sliders (3), and sealing components (7) installed on the inner walls of the two connecting pipes (4), with rubber sleeves (8) glued to the inner walls of one end of the two connecting pipes (4), and a controller (10) and a vibration sensor (9) installed on the bottom outer wall of the mounting plate (1).

2. The air duct connection structure for a high-speed train according to claim 1, characterized in that: The adjustment assembly (6) includes a vertical plate (601), an electric push rod (602) installed on the outer wall of one side of the vertical plate (601), and two traction rods (603) rotatably installed on one end of the piston rod of the electric push rod (602).

3. The air duct connection structure for a high-speed train according to claim 1, characterized in that: The sealing assembly (7) includes a fixing ring (701), a plurality of elastic rods (702) movably inserted into the outer wall of one side of the fixing ring (701) and distributed at equal intervals, an mounting ring (703) installed at one end of the elastic rods (702) and a sealing ring (704) bonded to the outer wall of one side of the mounting ring (703).

4. The air duct connection structure for a high-speed train according to claim 3, characterized in that: The elastic rod (702) includes a movable rod (702-1) and a spring (702-2) sleeved on the outside of the movable rod (702-1).

5. The air duct connection structure for a high-speed train according to claim 2, characterized in that: The electric push rod (602) and the vibration sensor (9) are both connected to the controller (10) via signal lines.

6. The air duct connection structure for a high-speed train according to claim 1, characterized in that: The mounting plate (1) has through mounting holes at all four corners of its top outer wall.

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