Auxiliary air duct for cab of railway vehicle

Abstract

The utility model discloses a railway vehicle cab auxiliary air duct which comprises a fixed air duct, one side of the fixed air duct is connected with a movable air duct, the outer wall of one side of the fixed air duct is sleeved with the movable air duct, the movable air duct and the fixed air duct are connected with second bolts, and the inner wall of the movable air duct is fixedly connected with a first sealing strip. A groove is formed in one side of the first sealing strip, a second sealing strip is fixedly connected to the outer wall of the fixed air duct, one side of the second sealing strip is of a protruding structure, the movable air duct is made of flexible materials, one end of the movable air duct is connected with a first flange, and the upper end and the lower end of the movable air duct are provided with an upper pressing frame and a lower supporting frame respectively. The upper pressing frame and the lower supporting frame form a splicing structure, the upper pressing frame and the lower supporting frame are combined to form a rectangular structure, and the movable air channel is movably connected with the upper pressing frame and the lower supporting frame. By arranging the movable air duct made of the flexible material, the direction of one end of the branch air duct of the cab can be flexibly adjusted, so that the branch air duct of the cab is convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply in the passenger compartment of rail vehicles, and specifically relates to an auxiliary air duct for the driver's cab of a rail vehicle. Background Technique

[0002] The air supply systems for the passenger compartments and driver's cabs of rail vehicles (such as subways, light rail trains, etc.) are important components to ensure the comfort and safety of passengers and staff. This system is mainly responsible for providing fresh air, regulating the temperature inside the vehicle, and helping to remove harmful gases when necessary.

[0003] Currently, most domestic rail vehicles adopt the air supply method of air conditioners. The air conditioner inhales fresh air and return air in proportion and evenly sends them to the inside of the passenger compartment and the driver's cab through the air duct. However, most of the branch air ducts in the driver's cab of current rail vehicles are of rigid structures and the installation position space is narrow. Although the structural strength is guaranteed, it is not conducive to the installation of the branch air duct in the driver's cab and the adjustment of the installation allowance between the air duct in the passenger compartment and the air supply unit in the driver's cab. Therefore, improvements are needed. Content of the Utility Model

[0004] The purpose of the utility model is to provide an auxiliary air duct for the driver's cab of a rail vehicle to solve the problems that the installation of the branch air duct in the driver's cab is relatively troublesome and it is inconvenient to adjust the allowance between the air duct in the passenger compartment and the air supply unit in the driver's cab proposed in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: An auxiliary air duct for the driver's cab of a rail vehicle includes a fixed air duct. One side of the fixed air duct is connected with a movable air duct. The movable air duct is made of flexible material. One end of the movable air duct is connected with a first flange. Upper and lower pressure frames are respectively arranged at the upper and lower ends of the movable air duct. The upper pressure frame and the lower support frame form a splicing structure. The upper pressure frame and the lower support frame are combined to form a rectangular structure. The movable air duct is movably connected with the upper pressure frame and the lower support frame.

[0006] Preferably, a second sealing strip is fixedly connected to the outer wall of the fixed air duct, and one side of the second sealing strip is in a convex structure.

[0007] Preferably, the movable air duct is sleeved on the outer wall of one side of the fixed air duct, and a second bolt is connected between the movable air duct and the fixed air duct. A first sealing strip is fixedly connected to the inner wall of the movable air duct. A groove is opened on one side of the first sealing strip, and the convex structure of the groove coincides with the convex structure of the second sealing strip.

[0008] Preferably, both the lower support frame and the upper pressure frame are in a "U" - shaped structure in side view. A plug rod is fixedly connected to the top end of the lower support frame, and a plurality of through holes are opened on the plug rod.

[0009] Preferably, a first bolt is inserted into the upper pressure frame, and one end of the first bolt passes through the upper pressure frame and is threadedly connected with the lower support frame.

[0010] Preferably, a connecting frame is fixedly connected to the bottom side of the fixed air duct, a supporting plate is inserted into the inner side of the connecting frame, one end of the connecting frame is threadedly connected to a third bolt, and one end of the third bolt passes through the connecting frame and is connected to the supporting plate.

[0011] Preferably, a second flange is connected to the other side of the fixed air duct, and lifting ears are installed at both ends of the fixed air duct.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] (1) This device is provided with a movable air duct made of flexible material, which can flexibly adjust the direction of one end of the driver's cab branch air duct, making the driver's cab branch air duct easy to install.

[0014] (2) This device connects a movable air duct to one side of the fixed air duct. The movable air duct is made of flexible material, can adjust the length and has certain deformation characteristics, which facilitates adjustment during the installation process and improves installation efficiency.

[0015] (3) This device sets an upper pressure frame and a lower support frame on the outer wall of the movable air duct. After the movable air duct is installed, the upper pressure frame and the lower support frame can support the movable air duct, thereby ensuring the stability of the movable air duct during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a top view of an auxiliary air duct in a driver's cab of a rail vehicle according to the present utility model;

[0017] Figure 2 This is a front view of an auxiliary air duct in a driver's cab of a rail vehicle according to the present utility model;

[0018] Figure 3 This is an exploded view of the upper pressure frame and lower support frame of the auxiliary air duct in the driver's cab of a rail vehicle according to the utility model;

[0019] Figure 4 This utility model is a kind of auxiliary air duct of the driver's cab of railway vehicle Figure 2 Enlarged view of point A in the middle;

[0020] Figure 5 This utility model is a kind of auxiliary air duct of the driver's cab of railway vehicle Figure 2 Enlarged view of point B in the middle.

[0021] In the figure: 1. First flange; 2. Movable air duct; 3. First bolt; 4. Upper pressure frame; 5. Fixed air duct; 6. Second flange; 7. Lifting ear; 8. Support plate; 9. Lower support frame; 10. Insert rod; 11. First sealing strip; 12. Second bolt; 13. Second sealing strip; 14. Connecting frame; 15. Third bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-5, the utility model provides a technical solution: an auxiliary air duct for the driver's cab of a rail vehicle, including a fixed air duct 5. One side of the fixed air duct 5 is connected with a movable air duct 2. A second sealing strip 13 is fixedly connected to the outer wall of the fixed air duct 5, and one side of the second sealing strip 13 is in a convex structure; the outer wall of one side of the fixed air duct 5 is sleeved with the movable air duct 2. A second bolt 12 is connected between the movable air duct 2 and the fixed air duct 5. A first sealing strip 11 is fixedly connected to the inner wall of the movable air duct 2. A groove is formed on one side of the first sealing strip 11, and the groove is in line with the convex structure of the second sealing strip 13; this structure can make the connection between the movable air duct 2 and the fixed air duct 5 more sealed through the splicing of the first sealing strip 11 and the second sealing strip 13, avoiding air leakage. A connecting frame 14 is fixedly connected to the bottom side of the fixed air duct 5. A support plate 8 is inserted inside the connecting frame 14. One end of the connecting frame 14 is threadedly connected with a third bolt 15, and one end of the third bolt 15 penetrates through the connecting frame 14 to be connected with the support plate 8; this structure can fix the support plate 8 through the third bolt 15; by setting the support plate 8, the movable air duct 2, the upper pressing frame 4 and the lower support frame 9 can be lifted, avoiding the phenomenon of sinking deformation of the movable air duct 2 due to its own weight; by setting the connecting frame 14, it is convenient to horizontally move the support plate 8 to adjust the position of the support plate 8. A second flange 6 is connected to the other side of the fixed air duct 5, and lifting lugs 7 are installed at both ends of the fixed air duct 5; this structure facilitates the fixation of the other side of the fixed air duct 5 through the second flange 6; through the lifting lugs 7, it is convenient for the hoisting work of the fixed air duct 5 and the movable air duct 2. The movable air duct 2 is made of a flexible material, and the movable air duct 2 can be made of rubber. One end of the movable air duct 2 is connected with a first flange 1. The upper and lower ends of the movable air duct 2 are respectively provided with an upper pressing frame 4 and a lower support frame 9. The lower support frame 9 and the upper pressing frame 4 are both in a "U" - shaped structure in side view. A plug rod 10 is fixedly connected to the top end of the lower support frame 9, and multiple through - holes are formed on the plug rod 10; this structure can adjust the connection position between the lower support frame 9 and the upper pressing frame 4 through the setting of the plug rod 10, facilitating corresponding adjustment according to the height of the movable air duct 2. A first bolt 3 is inserted into the upper pressing frame 4, and one end of the first bolt 3 penetrates through the upper pressing frame 4 to be threadedly connected with the lower support frame 9; this structure can fix both ends of the upper pressing frame 4 and the lower support frame 9 through the first bolt 3; by setting the upper pressing frame 4 and the lower support frame 9, the outer wall of the movable air duct 2 can be limited, lifted and supported, making the movable air duct 2 more stable during use; the upper pressing frame 4 and the lower support frame 9 form a splicing structure, the upper pressing frame 4 and the lower support frame 9 are combined to form a rectangular structure, and the movable air duct 2 is movably connected with the upper pressing frame 4 and the lower support frame 9; because the movable air duct 2 is made of a flexible material, the installation allowance between the passenger compartment air duct and the driver's cab air supply unit can be adjusted.

[0024] Working principle: When using the auxiliary air duct in the driver's cab of the rail vehicle, first, put one side of the movable air duct 2 on the outer wall of one side of the fixed air duct 5, so that the first sealing strip 11 on the inner wall of the movable air duct 2 is connected to the second sealing strip 13 on the outer wall of the fixed air duct 5, and after connecting the movable air duct 2 to the fixed air duct 5, use the second bolt 12 to fix the movable air duct 2 to the fixed air duct 5, and then fix the lifting ear 7 of this device to the vehicle body, and then install the first flange 1 at the end position of the air duct for connecting the passenger compartment air duct, and then connect the second flange 6 to the other end of the air duct for connecting the driver's cab ventilation unit, and then use the first bolt 3 to fix the upper pressure frame 4 and the lower support frame 9 to the outer wall of the movable air duct 2, and then push the support plate 8 so that the support plate 8 is located at the bottom of the lower support frame 9 to support the lower support frame 9, and use the third bolt 15 to fix the support plate 8 to the connecting frame 14.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An auxiliary air duct for a rail vehicle driver's cab, comprising a fixed air duct (5), characterized in that: One side of the fixed air duct (5) is connected with a movable air duct (2). The movable air duct (2) is made of flexible material. One end of the movable air duct (2) is connected with a first flange (1). Upper pressing frames (4) and lower support frames (9) are respectively arranged at the upper and lower ends of the movable air duct (2). The upper pressing frame (4) and the lower support frame (9) form a splicing structure. The upper pressing frame (4) and the lower support frame (9) are combined to form a rectangular structure. The movable air duct (2) is movably connected with the upper pressing frame (4) and the lower support frame (9).

2. The auxiliary air duct for the driver's cab of a railway vehicle according to claim 1, characterized in that: A second sealing strip (13) is fixedly connected to the outer wall of the fixed air duct (5). One side of the second sealing strip (13) is of a convex structure.

3. The auxiliary air duct for the driver's cab of a railway vehicle according to claim 1, characterized in that: The outer wall of one side of the fixed air duct (5) is sleeved with the movable air duct (2). A second bolt (12) is connected between the movable air duct (2) and the fixed air duct (5). A first sealing strip (11) is fixedly connected to the inner wall of the movable air duct (2). A groove is formed on one side of the first sealing strip (11). The groove is in line with the convex structure of the second sealing strip (13).

4. The auxiliary air duct for a rail vehicle driver's cab according to claim 1, characterized in that: Both the lower support frame (9) and the upper pressing frame (4) are of a "U" - shaped structure when viewed from the side. A plug rod (10) is fixedly connected to the top end of the lower support frame (9). Multiple through - holes are formed on the plug rod (10).

5. The auxiliary air duct for the driver's cab of a railway vehicle according to claim 1, characterized in that: A first bolt (3) is inserted into the upper pressing frame (4). One end of the first bolt (3) passes through the upper pressing frame (4) and is threadedly connected with the lower support frame (9).

6. The auxiliary air duct for a rail vehicle driver's cab according to claim 1, characterized in that: A connecting frame (14) is fixedly connected to the bottom side of the fixed air duct (5). A support plate (8) is inserted into the inner side of the connecting frame (14). One end of the connecting frame (14) is threadedly connected with a third bolt (15). One end of the third bolt (15) passes through the connecting frame (14) and is connected with the support plate (8).

7. The auxiliary air duct for a rail vehicle driver's cab according to claim 1, characterized in that: A second flange (6) is connected to the other side of the fixed air duct (5). Lifting lugs (7) are installed at both ends of the fixed air duct (5).

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