Side door frame of convergence section of railway vehicle, manufacturing method of side door frame and railway vehicle

Abstract

The invention relates to the technical field of railway vehicles, and provides a side door frame of a convergence section of a railway vehicle, a manufacturing method of the side door frame and the railway vehicle. The side door frame includes a front pillar located on a downstream side in a convergence direction, a rear pillar opposite to the front pillar, a side beam, and a sill, the front pillar including: a first rear wall portion perpendicular to a center line in a length direction of the rail vehicle, the first rear wall portion configured to smoothly abut against a front side of the door mechanism in a closed state; the first front wall part and the first rear wall part are oppositely arranged in the length direction; the outline of the first outer wall part is consistent with that of a first combination part, used for installing the side door frame, of the convergent section, so that the first outer wall part smoothly abuts against the first combination part; the first inner wall part and the first outer wall part are oppositely arranged in the width direction of the railway vehicle, and a cavity structure is defined by the first front wall part, the first rear wall part and the first outer wall part.

Description

Technical Field

[0001] The present disclosure relates to the technical field of rail vehicles, and more particularly, to a side door frame of a converging section of a rail vehicle, a manufacturing method thereof, and a rail vehicle. Background Art

[0002] Since a cab is provided in the head car of a rail vehicle, the body length of the head car is longer than that of the middle cars, so that the rail vehicle is prone to shift on a curve during the turning process. At present, the cab of the head car of the rail vehicle is set as a converging structure to reduce the offset amount of the rail vehicle on the curve caused by the different car lengths, thereby avoiding collision with tunnel or platform equipment and improving the driving safety.

[0003] However, in the process of implementing the concept of the present disclosure, the inventor found that due to the door mechanism provided in the cab, the converging structure of the cab will cause difficulties and high costs in installing the door mechanism. Summary of the Invention

[0004] In view of this, the present disclosure provides a side door frame of a converging section of a rail vehicle, a manufacturing method thereof, and a rail vehicle.

[0005] One aspect of the present disclosure provides a side door frame of a converging section of a rail vehicle. The side door frame includes a front column located on the downstream side in the converging direction, a rear column opposite to the front column, a side beam, and a sill. The front column includes: a first rear wall portion perpendicular to the center line in the length direction of the rail vehicle, the first rear wall portion being configured to smoothly abut against the front side of the door mechanism in the closed state; a first front wall portion oppositely arranged with the first rear wall portion in the length direction; a first outer wall portion having a profile consistent with that of a first joint portion of the converging section for installing the side door frame, so as to smoothly abut against the first joint portion; and a first inner wall portion oppositely arranged with the first outer wall portion in the width direction of the rail vehicle, and the first front wall portion, the first rear wall portion, and the first outer wall portion enclose a cavity structure.

[0006] Optionally, the included angle between the first outer wall portion and the first rear wall portion is equal to the included angle between the first joint portion and a first direction, wherein the first direction is perpendicular to the center line in the length direction of the rail vehicle.

[0007] Optionally, the included angle between the first rear wall portion and the first outer wall portion is an acute angle, so that the extending direction of the first outer wall portion extending from the first rear wall portion to the first front wall portion is the same as the converging trend of the converging section for installing the side door frame side.

[0008] Optionally, an opening extending in the height direction of the side door frame is formed in the first rear wall portion and the first outer wall portion to form an armrest groove for accommodating an armrest.

[0009] Optionally, the front column further includes: a first connecting wall connecting the first rear wall portion and the first front wall portion between the first outer wall portion and the first inner wall portion; and a second connecting wall connecting the first outer wall portion and the first inner wall portion between the first rear wall portion and the first front wall portion and cross-bonded with the first connecting wall.

[0010] Optionally, the rear column includes a second rear wall portion, a second front wall portion, a second outer wall portion, and a second inner wall portion enclosing a cavity structure; the second outer wall portion is consistent with the contour of the second joint portion of the converging section for installing the side door frame to smoothly abut against the second joint portion.

[0011] Optionally, an opening extending in the height direction of the side door frame is formed in the second outer wall portion and the second front wall portion to form an armrest groove for accommodating an armrest.

[0012] Optionally, the rear column further includes a third connecting wall connecting the second rear wall portion and the second front wall portion between the second outer wall portion and the second inner wall portion.

[0013] Optionally, a engaging portion for abutting against the rear side of the door mechanism is formed on the second inner wall portion.

[0014] Optionally, the sill is located between the bottom ends of the front column and the rear column, and the sill slopes downward from the inner side to the outer side of the side door frame.

[0015] Optionally, a drain trough is further included, and the drain trough is located on a side of the rear column facing away from the front column so that when the door mechanism slides out of the side door frame, the drain trough is located below the door mechanism.

[0016] Optionally, along the height direction of the side door frame, the side beam forms a plurality of spaced sliders, and the upper end of the door mechanism is slidably engaged with the sliders.

[0017] A second aspect of the present disclosure provides a rail vehicle, including: a vehicle body; a cab disposed at the front of the vehicle body, the cab including a converging section that gradually converges toward the front end, and the converging section is provided with the side door frame as described above; and a door mechanism installed on the side door frame.

[0018] The third aspect of the present disclosure provides a method for manufacturing a side door frame of a converging section of a rail vehicle, including: preparing a front column and a rear column with a cavity structure, such that the included angle between the first outer wall portion and the first rear wall portion of the front column is equal to the included angle between the first joint portion for installing the side door frame of the converging section and a first direction, where the first direction is perpendicular to the center line in the length direction of the rail vehicle; stretch-bending the front column and the rear column such that the contour of the first outer wall portion is consistent with that of the first joint portion, and the first rear wall portion remains perpendicular to the center line; and welding the front column, the rear column, a side beam, and a sill to form a frame structure.

[0019] According to an embodiment of the present disclosure, by setting the first rear wall portion of the front column perpendicular to the center line in the length direction of the rail vehicle, the first rear wall portion can be smoothly and closely abutted against the front side of the door mechanism, thereby improving the sealing performance. By setting the contour of the first outer wall portion to be consistent with that of the first joint portion, the first outer wall portion can be more closely abutted against the first joint portion. Since there is no need to provide structures such as aluminum plates, the structure of the side door frame is relatively simple, and there is no need to perform processes such as welding and cutting on the aluminum plates, thereby improving the convenience of installing the side door frame and the door mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, the above and other objects, features, and advantages of the present disclosure will become clearer. In the drawings:

[0021] Figure 1 A perspective view of a converging section of a rail vehicle according to an embodiment of the present disclosure is schematically shown.

[0022] Figure 2 A cross-sectional view of a side door frame in the related art is schematically shown.

[0023] Figure 3 A perspective view of a side door frame according to an embodiment of the present disclosure is schematically shown.

[0024] Figure 4 A perspective view of the side door frame according to an embodiment of the present disclosure from another angle is schematically shown.

[0025] Figure 5 The positional relationship between a converging section, a side door frame, and a door mechanism according to an embodiment of the present disclosure is schematically shown.

[0026] Figure 6 A cross-sectional view of a front column according to an embodiment of the present disclosure is schematically shown.

[0027] Figure 7 A cross-sectional view of a rear column according to an embodiment of the present disclosure is schematically shown.

[0028] Figure 8 A cross-sectional view of a side beam according to an embodiment of the present disclosure is schematically shown.

[0029] Reference numeral

[0030] 1, front column;

[0031] 11, first rear wall portion;

[0032] 12, first front wall portion;

[0033] 13, first outer wall portion;

[0034] 14, first inner wall portion;

[0035] 15, armrest groove;

[0036] 16, first connecting wall;

[0037] 17, second connecting wall;

[0038] 2, rear column;

[0039] 21, second rear wall portion;

[0040] 22, second front wall portion;

[0041] 23, second outer wall portion;

[0042] 24, second inner wall portion;

[0043] 25, third connecting wall;

[0044] 26, engaging portion;

[0045] 3, side beam;

[0046] 31, sliding groove;

[0047] 4, sill;

[0048] 5, drain trough;

[0049] 6, aluminum plate;

[0050] A, converging section;

[0051] A1, first joint portion;

[0052] A2, second joint portion;

[0053] B, door mechanism;

[0054] L, center line;

[0055] F, first direction. Detailed implementation manners

[0056] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present disclosure. In the following detailed description, for the sake of explanation, numerous specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is obvious that one or more embodiments can also be implemented without these specific details. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concepts of the present disclosure.

[0057] The terms used herein are merely for describing specific embodiments and are not intended to limit the present disclosure. The terms "including", "comprising", etc. used herein indicate the presence of features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0058] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0059] In the case of using expressions such as "at least one of A, B, and C, etc.", generally, it should be interpreted according to the meaning commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include, but not be limited to, a system having only A, only B, only C, having A and B, having A and C, having B and C, and / or having A, B, and C, etc.).

[0060] Figure 1 A perspective view of a converging section of a rail vehicle according to an embodiment of the present disclosure is schematically shown. Figure 2 A cross-sectional view of a side door frame of the related art is schematically shown.

[0061] As Figure 1 shown, in order to reduce the offset amount of the rail vehicle on the curve due to different car lengths, it is necessary to set the cab of the head car to a converging structure, that is, the cab has a converging section A. However, in the process of implementing the concept of the present disclosure, the inventor found that the converging structure of the converging section A would result in difficulties in installation and high installation costs when installing the door mechanism B. For example, as Figure 2As shown, in the related art, to ensure that the door mechanism can be in close contact with the side door frame, an aluminum plate 6 needs to be provided on the side of the front column 1 of the side door frame close to the rear column 2. By machining the aluminum plate 6, such as cutting, the side of the aluminum plate 6 close to the rear column 2 is made perpendicular to the sliding direction of the door mechanism. Further, to install the side door frame on the cab and make the shape of the side door frame match that of the cab, the front column 1 needs to be set as a bent structure. However, since the related art requires welding the front column 1 and the aluminum plate 6 and machining the aluminum plate 6, there will be drawbacks such as a large amount of welding and high processing costs. Therefore, the embodiments of the present disclosure provide a side door frame with a simple structure and convenient installation.

[0062] Figure 3 Schematically shows a perspective view of a side door frame according to an embodiment of the present disclosure. Figure 4 Schematically shows a perspective view of the side door frame according to an embodiment of the present disclosure from another angle. Figure 5 Schematically shows the positional relationship between the converging section, the side door frame, and the door mechanism according to an embodiment of the present disclosure. Figure 6 Schematically shows a cross-sectional view of the front column according to an embodiment of the present disclosure.

[0063] As Figure 1 、 Figures 3 - 6 As shown, the side door frame may include a front column 1, a rear column 2, a side beam 3, and a sill 4. The side door frame can be installed on the cab of a rail vehicle. Further, the side door frame can be installed on the converging section A of the cab. The converging section A of the rail vehicle may be provided with a first joint portion A1 and a second joint portion A2 for respectively installing the front column 1 and the rear column 2. The side door frame can be used to install a door mechanism B. The door mechanism B can slide relative to the side door frame to be in an open state or a closed state. The door mechanism B can slide in a direction parallel to the center line L. When the door mechanism B slides until its two sides are respectively in contact with the front column 1 and the rear column 2, the door mechanism B is in a closed state. When the door mechanism B slides until it is separated from the front column 1, the door mechanism B is in an open state. The front column 1, the rear column 2, the side beam 3, and the sill 4 can enclose a frame structure. The rear column 2 is disposed opposite to the front column 1. The front column 1 can be located on the downstream side of the rear column 2 in the converging direction, that is, in the direction from the rear column 2 to the front column 1, the converging section A gradually narrows.

[0064] As Figure 6As shown, the front pillar 1 may include a first rear wall portion 11, a first front wall portion 12, a first outer wall portion 13, and a first inner wall portion 14. The first front wall portion 12, the first rear wall portion 11, the first outer wall portion 13, and the first inner wall portion 14 may jointly enclose a cavity structure. Further, the first front wall portion 12 and the first rear wall portion 11 are oppositely arranged in the longitudinal direction of the rail vehicle. The first inner wall portion 14 and the first outer wall portion 13 are oppositely arranged in the width direction of the rail vehicle. The first front wall portion 12 and the first rear wall portion 11 may be parallel to each other. The first inner wall portion 14 may be parallel to the center line L in the longitudinal direction of the rail vehicle, that is, parallel to the sliding direction of the door mechanism B. The first rear wall portion 11 may be perpendicular to the center line L in the longitudinal direction of the rail vehicle, that is, perpendicular to the sliding direction of the door mechanism B. The first rear wall portion 11 is configured to smoothly abut against the front side of the door mechanism B in the closed state. Since the first rear wall portion 11 is perpendicular to the center line L and the door mechanism B slides in a direction parallel to the center line L, when the door mechanism B is in the closed state, the first rear wall portion 11 can smoothly abut against the front side of the door mechanism B more closely, thereby improving the sealing performance.

[0065] The first outer wall portion 13 may be consistent with the contour of the first joint portion A1 of the converging section A for installing the side door frame, so as to smoothly abut against the first joint portion A1. Since the converging section A is a converging structure, the contour of the first joint portion A1 has an inclined and / or curved shape. By setting the contour of the first outer wall portion 13 to be consistent with the contour of the first joint portion A1, the first outer wall portion 13 can abut against the first joint portion A1 more closely.

[0066] According to the embodiments of the present disclosure, by setting the first rear wall portion 11 of the front pillar 1 to be perpendicular to the center line L in the longitudinal direction of the rail vehicle, the first rear wall portion 11 can smoothly abut against the front side of the door mechanism B more closely, thereby improving the sealing performance. By setting the contour of the first outer wall portion 13 to be consistent with the contour of the first joint portion A1, the first outer wall portion 13 can abut against the first joint portion A1 more closely. Since there is no need to provide structures such as the aluminum plate 6, the structure of the side door frame is relatively simple, and there is no need to perform processes such as welding and cutting on the aluminum plate 6, thereby improving the convenience of installing the side door frame and the door mechanism B.

[0067] As Figure 6As shown, in some embodiments, the angle α between the first outer wall and the first rear wall portion 11 is equal to the angle between the first joint portion A1 and the first direction F. The first direction F is perpendicular to the center line L in the length direction of the rail vehicle. The first rear wall portion 11 may be parallel to the first direction F. The angle between each horizontal section of the first joint portion A1 and the first direction F may be equal. By setting the angle α between the first outer wall and the first rear wall portion 11 equal to the angle between the first joint portion A1 and the first direction F, the profiles of the first outer wall portion 13 and the first joint portion A1 are made consistent, so that the first outer wall portion 13 and the first joint portion A1 can be in closer contact.

[0068] As Figure 6 shown, in some embodiments, the angle α between the first rear wall portion 11 and the first outer wall portion 13 is an acute angle, so that the extending direction of the first outer wall portion 13 extending from the first rear wall portion 11 to the first front wall portion 12 is the same as the converging trend of the converging section A on the side for installing the side door frame. By setting the angle α, the side door frame can be adapted to rail vehicles of different specifications.

[0069] As Figure 1 , Figures 3 - 6 shown, in some embodiments, an opening extending in the height direction of the side door frame is formed between the first rear wall portion 11 and the first outer wall portion 13 to form an armrest groove 15 for accommodating an armrest. Since there is no need to weld the aluminum plate 6, the opening can be relatively easily processed on the first rear wall portion 11 and the first outer wall portion 13. And since there is no need to additionally leave a region for welding the aluminum plate 6 on the first outer wall portion 13, that is, there is no need to leave a large region for welding the aluminum plate 6 to ensure the stability of welding. Only the unprocessed part of the first rear wall portion 11 can be in smooth contact with the front side of the door mechanism B. Therefore, the length and width of the opening can be increased, so that the space of the armrest groove 15 can be effectively increased, which is suitable for a relatively large armrest and can improve the use comfort.

[0070] As Figure 6 shown, in some embodiments, the front column 1 may further include a first connecting wall 16 and a second connecting wall 17. The first connecting wall 16 is between the first outer wall portion 13 and the first inner wall portion 14 and connects the first rear wall portion 11 and the first front wall portion 12. The first end of the first connecting wall 16 (such as Figure 6 shown as the right end of the first connecting wall 16) may be connected to the middle of the first rear wall portion 11, and the second end of the first connecting wall 16 (such as Figure 6 shown as the left end of the first connecting wall 16) may be connected to the middle of the first front wall portion 12. The second connecting wall 17 connects the first outer wall portion 13 and the first inner wall portion 14 between the first rear wall portion 11 and the first front wall portion 12 and cross-combines with the first connecting wall 16. The first end of the second connecting wall 17 (such as Figure 6The upper end of the second connecting wall 17 shown) can be connected to the middle of the first outer wall portion 13, and the second end of the second connecting wall 17 (such as Figure 6 the lower end of the second connecting wall 17 shown) can be connected to the middle of the first inner wall portion 14. By providing the first connecting wall 16 and the second connecting wall 17, the structural strength and rigidity of the front pillar 1 can be improved.

[0071] Figure 7 A cross-sectional view of a rear pillar according to an embodiment of the present disclosure is schematically shown.

[0072] Such as Figure 7 shown, in some embodiments, the rear pillar 2 includes a second rear wall portion 21, a second front wall portion 22, a second outer wall portion 23, and a second inner wall portion 24 that enclose to form a cavity structure. The second front wall portion 22 and the second rear wall portion 21 are disposed opposite to each other in the longitudinal direction of the rail vehicle. The second inner wall portion 24 and the second outer wall portion 23 are disposed opposite to each other in the width direction of the rail vehicle. The second outer wall portion 23 is consistent with the profile of the second joint portion A2 of the converging section A for installing the side door frame, so as to smoothly abut against the second joint portion A2. Since the converging section A is a converging structure, the profile of the second joint portion A2 has an inclined and / or curved shape. By setting the profile of the second outer wall portion 23 to be consistent with the profile of the second joint portion A2, the second outer wall portion 23 can abut more closely against the second joint portion A2.

[0073] Such as Figures 3 - 5 and Figure 7 shown, in some embodiments, the second outer wall portion 23 and the second front wall portion 22 are formed with an opening extending in the height direction of the side door frame to form an armrest groove 15 for accommodating an armrest. If the armrest protrudes from the surface of the rail vehicle, it will disrupt the airflow, generating pressure drag and turbulence. By providing the armrest groove 15, the armrest can be hidden in the armrest groove 15, making the surface of the rail vehicle tend to be flat, guiding the airflow to flow smoothly along the vehicle body, thereby reducing the overall vehicle resistance, and at the same time avoiding external damage to the armrest and extending the service life of the armrest.

[0074] Such as Figure 7 shown, in some embodiments, the rear pillar 2 further includes a third connecting wall 25. The third connecting wall 25 connects the second rear wall portion 21 and the second front wall portion 22 between the second outer wall portion 23 and the second inner wall portion 24. By providing the third connecting wall 25, the structural strength and rigidity of the rear pillar 2 can be improved.

[0075] Such as Figure 7As shown, in some embodiments, a engaging portion 26 for abutting against the rear side of the door mechanism B is formed on the second inner wall portion 24. A engaging area matching the shape of the engaging portion 26 may be formed on the rear side of the door mechanism B. Sealing strips may be respectively provided on the front side and the rear side of the door mechanism B, and the engaging portion 26 may abut against the rear side of the door mechanism B through the sealing strip, and the first rear wall portion 11 may abut against the front side of the door mechanism B through the sealing strip to improve the sealing performance.

[0076] As Figures 3 - 4 shown, in some embodiments, the sill 4 is located between the bottom ends of the front pillar 1 and the rear pillar 2, and the sill 4 slopes downward from the inner side to the outer side of the side door frame. When the door mechanism B is in the closed state, the sill 4 may be located at the bottom of the door mechanism B. In rainy weather or when washing the rail vehicle, the liquid may flow from the outer surface of the door mechanism B to the sill 4, and then be discharged under the guidance of the sill 4, avoiding the liquid flowing into the interior of the car body.

[0077] As Figures 3 - 4 shown, in some embodiments, the side door frame may further include a drainage groove 5. The drainage groove 5 may be located on the side of the rear pillar 2 away from the front pillar 1 (as Figure 3 shown, the drainage groove 5 and the sill 4 are respectively located on both sides of the rear pillar 2), so that when the door mechanism B slides out of the side door frame, the drainage groove 5 is located below the door mechanism B. Thus, when there is residual liquid on the outer surface of the door mechanism B, the drainage groove 5 can hold the liquid flowing down from the outer surface of the door mechanism B.

[0078] Figure 8 A cross-sectional view of the side beam according to an embodiment of the present disclosure is schematically shown.

[0079] In some embodiments, the door mechanism B may be slidably connected to the side door frame based on the side beam 3. As Figure 8 shown, along the height direction of the side door frame, a plurality of spaced-apart sliding grooves 31 are formed on the side beam 3. A plurality of sliders matching the shape of the sliding grooves 31 may be provided at the upper end of the door mechanism B, so that the door mechanism B can be slidably engaged with the sliding grooves 31 based on the sliders. By providing a plurality of sliding grooves 31 and sliders, it is possible to prevent the door mechanism B from tilting or shifting during the sliding process, thereby improving the sliding stability of the door mechanism B.

[0080] The present disclosure also provides a rail vehicle. The rail vehicle includes a car body, a cab, and a door mechanism B. The cab can be arranged at the front of the car body. The car body can be characterized as the part of the rail vehicle other than the cab. The cab can include a converging section A that converges gradually towards the front end of the rail vehicle. The side door frame described above is provided on the converging section A. The door mechanism B is installed on the side door frame. The first rear wall portion 11 of the front column 1 of the side door frame can be perpendicular to the center line L in the length direction of the rail vehicle, so that the first rear wall portion 11 can be smoothly and closely abutted against the front side of the door mechanism B, thereby improving the sealing performance. The contour of the first outer wall portion 13 of the side door frame is consistent with that of the first joint portion A1 of the converging section A for installing the side door frame, so that the first outer wall portion 13 can be more closely abutted against the first joint portion A1. Since there is no need to provide structures such as an aluminum plate 6, the structure of the side door frame is relatively simple, and there is no need to perform processes such as welding and cutting on the aluminum plate 6, thereby improving the convenience of installing the side door frame and the door mechanism B.

[0081] The present disclosure also provides a manufacturing method for a side door frame of a converging section of a rail vehicle. This manufacturing method can be used to manufacture the side door frame described above. The manufacturing method can include the following steps S110 to S130.

[0082] In step S110, a front column 1 and a rear column 2 with a cavity structure are prepared. The front column 1 can include a first rear wall portion 11, a first inner wall portion 14, a first front wall portion 12, and a first outer wall portion 13 that are sequentially connected. The angle between the first outer wall portion 13 and the first rear wall portion 11 is equal to the angle between the first joint portion A1 of the converging section A for installing the side door frame and the first direction F. The angle between each horizontal section of the first joint portion A1 and the first direction F can be equal. The first direction F can be perpendicular to the center line L in the length direction of the rail vehicle. The first rear wall portion 11 can be parallel to the first direction F.

[0083] The rear column 2 can include a second rear wall portion 21, a second inner wall portion 24, a second front wall portion 22, and a second outer wall portion 23 that are sequentially connected. Further, a first connecting wall 16 connecting the first rear wall portion 11 and the first front wall portion 12 can be provided between the first outer wall portion 13 and the first inner wall portion 14. A second connecting wall 17 connecting the first outer wall portion 13 and the first inner wall portion 14 can be provided between the first rear wall portion 11 and the first front wall portion 12. A third connecting wall 25 connecting the second rear wall portion 21 and the second front wall portion 22 can be provided between the second outer wall portion 23 and the second inner wall portion 24. By providing the first connecting wall 16 and the second connecting wall 17, the structural strength and rigidity of the front column 1 can be improved. By providing the third connecting wall 25, the structural strength and rigidity of the rear column 2 can be improved.

[0084] In step S120, the front bent column 1 and the rear bent column 2 are bent so that the contour of the first outer wall portion 13 coincides with that of the first joint portion A1, and the first rear wall portion 11 is kept perpendicular to the center line L. Further, since the angle between the first outer wall portion 13 and the first rear wall portion 11 is preset when the front bent column 1 is prepared, that is, the angle between the first outer wall portion 13 and the first rear wall portion 11 is equal to the angle between the first joint portion A1 and the first direction F, after the front bent column 1 is bent, the contour of the first outer wall portion 13 can coincide with that of the first joint portion A1, and then the front bent column 1 can be more closely abutted against the first joint portion A1. Further, when the front bent column 1 is bent, by bending the front bent column 1 in a direction perpendicular to the center line L, the first rear wall portion 11 can be kept perpendicular to the center line L, so as to ensure that the angle between the first outer wall portion 13 and the first rear wall portion 11 remains unchanged when the front bent column 1 is bent.

[0085] Further, by bending the rear bent column 2, the contour of the second outer wall portion 23 of the rear bent column 2 can coincide with the contour of the second joint portion A2 of the converging section A for installing the side door frame, so that the second outer wall portion 23 can be more closely abutted against the second joint portion A2.

[0086] In step S130, the front bent column 1, the rear bent column 2, the side beam 3 and the sill 4 are welded to form a frame structure.

[0087] In some embodiments, openings extending in the height direction of the side door frame can be processed on the first rear wall portion 11 and the first outer wall portion 13 of the front bent column 1 to form an armrest groove 15 for accommodating an armrest. Openings extending in the height direction of the side door frame can also be processed on the second outer wall portion 23 and the second front wall portion 22 to form the armrest groove 15. By providing the armrest groove 15, the armrest can be hidden in the armrest groove 15, making the surface of the rail vehicle tend to be flat, guiding the airflow to flow smoothly along the vehicle body, so that the overall vehicle resistance can be reduced, and at the same time, the armrest can be prevented from being damaged by external forces and the service life of the armrest can be extended.

[0088] The embodiments of the present disclosure have been described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the embodiments are described separately above, this does not mean that the measures in each embodiment cannot be used advantageously in combination. Without departing from the scope of the present disclosure, those skilled in the art can make various substitutions and modifications, and these substitutions and modifications should fall within the scope of the present disclosure.

Claims

1. A side door frame for a converging section of an orbital vehicle, characterized in that, The side door frame includes a front column located on the downstream side in the converging direction, a rear column opposite to the front column, a side sill, and a threshold. The front column includes: A first rear wall portion perpendicular to the center line in the longitudinal direction of the rail vehicle, and the first rear wall portion is configured to smoothly abut against the front side of the door mechanism in the closed state; A first front wall portion oppositely arranged with the first rear wall portion in the longitudinal direction; A first outer wall portion having the same profile as the first joint portion of the converging section for installing the side door frame, so as to smoothly abut against the first joint portion; and A first inner wall portion oppositely arranged with the first outer wall portion in the width direction of the rail vehicle, and the first front wall portion, the first rear wall portion, and the first outer wall portion enclose a cavity structure.

2. The side door frame according to claim 1, characterized in that, The included angle between the first outer wall portion and the first rear wall portion is equal to the included angle between the first joint portion and the first direction, wherein the first direction is perpendicular to the center line in the longitudinal direction of the rail vehicle.

3. The side door frame according to claim 1, characterized in that, The included angle between the first rear wall portion and the first outer wall portion is an acute angle, so that the extending direction of the first outer wall portion extending from the first rear wall portion to the first front wall portion is the same as the converging trend of the converging section for installing the side door frame side.

4. The side door frame according to claim 1, characterized in that, The first rear wall portion and the first outer wall portion are formed with an opening extending in the height direction of the side door frame to form an armrest groove for accommodating an armrest.

5. The side door frame according to claim 1, characterized in that, The front column further includes: A first connecting wall connecting the first rear wall portion and the first front wall portion between the first outer wall portion and the first inner wall portion; and A second connecting wall connecting the first outer wall portion and the first inner wall portion between the first rear wall portion and the first front wall portion, and cross-connecting with the first connecting wall.

6. The side door frame according to claim 1, characterized in that The rear column includes a second rear wall portion, a second front wall portion, a second outer wall portion, and a second inner wall portion that enclose a cavity structure; The second outer wall portion has the same profile as the second joint portion of the converging section for installing the side door frame, so as to smoothly abut against the second joint portion.

7. The side door frame according to claim 6, characterized in that, The second outer wall portion and the second front wall portion are formed with an opening extending in the height direction of the side door frame to form an armrest groove for accommodating an armrest.

8. The side door frame according to claim 6, characterized in that, The rear column further includes a third connecting wall connecting the second rear wall portion and the second front wall portion between the second outer wall portion and the second inner wall portion.

9. The side door frame according to claim 6, wherein The second inner wall portion is formed with a engaging portion for abutting against the rear side of the door mechanism.

10. The side door frame according to claim 1, characterized in that, The threshold is located between the bottom ends of the front column and the rear column, and the threshold slopes downward from the inner side to the outer side of the side door frame.

11. The side door frame according to claim 1, characterized in that, It further includes a drain groove located on the side of the rear column away from the front column, so that when the door mechanism slides out of the side door frame, the drain groove is located below the door mechanism.

12. The side door frame according to claim 1, characterized in that, Along the height direction of the side door frame, the side sill forms a plurality of spaced chutes, and the upper end of the door mechanism is slidably engaged with the chutes.

13. An orbital vehicle, characterized in that, Including: A car body; The cab is arranged at the front part of the car body. The cab includes a converging section that gradually converges towards the front end, and the converging section is provided with a side door frame as described in any one of claims 1 to 12 above; and The door mechanism is installed on the side door frame.

14. A manufacturing method for a side door frame of a converging section of a rail vehicle, characterized in that, It includes:[[]] Manufacture a front pillar and a rear pillar with a cavity structure, such that the angle between the first outer wall portion and the first rear wall portion of the front pillar is equal to the angle between the first joint portion for installing the side door frame of the converging section and the first direction, wherein the first direction is perpendicular to the center line of the length direction of the rail vehicle; Draw-bend the front pillar and the rear pillar, such that the first outer wall portion is consistent with the contour of the first joint portion, and the first rear wall portion remains perpendicular to the center line; and Weld the front pillar, the rear pillar, the side beam and the sill to form a frame structure.

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