Side beam profile and railway vehicle body

Abstract

The present disclosure provides a side beam profile and a railway vehicle body, wherein the side beam profile comprises a main body part having a plurality of cavities and configured to be installed between a door upright and a roof of a body of a railway vehicle; and a support beam arranged at an inner side of the main body part, a bottom of the support beam is connected with a bottom of the main body part, a top end of the support beam extends upwardly and is connected with the main body part in a direction close to the main body part.

Description

Technical Field

[0001] At least one embodiment of the present disclosure relates to the field of rail vehicle technology, and in particular to a side beam profile and a rail vehicle body. Background Art

[0002] As an important component of the rail vehicle body, the side beam profile is generally installed between the side door mechanism and the roof, and needs to meet the strength and rigidity required by the rail vehicle body.

[0003] Currently, when side beams are installed between the side door mechanism and the roof, reinforcing ribs are typically welded between the top of the side door mechanism and the side beam to ensure the required strength of the rail vehicle body. However, welding these reinforcing ribs increases the installation process, making it inconvenient and impacting installation efficiency. Furthermore, the strength and rigidity of the side beams, as well as the safety of the side beams located at the corners of the side door mechanism, need to be improved. Summary of the Invention

[0004] In view of this, the present disclosure provides a side beam profile and a rail vehicle body, which are used to at least partially solve the above technical problems, improve the strength and rigidity of the side beam profile, and improve the convenience and efficiency of installation.

[0005] A first aspect of the present disclosure provides a side beam profile, comprising a main body portion having a plurality of chambers and being configured to be installed between a door pillar and a roof of a rail vehicle body; and a support beam arranged on the inner side of the main body portion, the bottom of the support beam being connected to the bottom of the main body portion, and the top end of the support beam extending obliquely upward in a direction close to the main body portion and being connected to the main body portion.

[0006] According to an embodiment of the present disclosure, the main body includes: a first side beam; a second side beam located on the inner side of the first side beam and spaced apart from the first side beam; and a plurality of connecting beams spaced apart from bottom to top between the first side beam and the second side beam to form a plurality of the chambers; wherein the connecting beams include a first connecting beam located at the bottom, the first connecting beam being constructed to connect the bottom ends of the first side beam and the second side beam to be installed on the door column.

[0007] According to an embodiment of the present disclosure, the bottom of the support beam is arranged approximately parallel to and spaced apart from the bottom of the second side beam, and is connected to the first extension portion of the first connecting beam extending toward the support beam, and the top end of the support beam is connected to the intersection of the second side beam and the connecting beam located in the middle.

[0008] According to an embodiment of the present disclosure, the middle portion of the support beam is bent to form a bent portion, which corresponds to the second connecting beam located above the first connecting beam and is connected to the second extending portion of the second connecting beam extending toward the support beam.

[0009] According to an embodiment of the present disclosure, the first side beam, the first connecting beam, the second side beam and the second connecting beam form a first cavity, the second side beam, the first connecting beam, the support beam and the second connecting beam form an auxiliary cavity, and at least one reinforcing beam is arranged in the first cavity and / or the auxiliary cavity.

[0010] According to an embodiment of the present disclosure, two reinforcing beams are provided in the first chamber and the auxiliary chamber, and the first ends of each of the two reinforcing beams are connected to the middle part of the second side beam located in the first chamber or the auxiliary chamber, and the second ends extend in a direction away from each other to the first side beam or the support beam.

[0011] According to an embodiment of the present disclosure, the bottom of the first side beam and / or the bottom of the support beam and the side surface corresponding to the second side beam extend toward the direction close to the second side beam to form a variable thickness portion.

[0012] According to an embodiment of the present disclosure, a first slide groove is provided on the side of the support beam facing away from the second side beam, and a second slide groove is provided on the side of the second side beam located above the support beam close to the first slide groove, and the first slide groove and the second slide groove are constructed to install a door mechanism.

[0013] According to an embodiment of the present disclosure, an eave for diverting rainwater is provided on a side of the first side beam away from the second side beam, and the eaves is connected to the connection between the first side beam and the connecting beam.

[0014] According to an embodiment of the present disclosure, top ends of the first side beam and the second side beam extend out of the connecting beam at the top to form a lap joint, and a positioning groove is provided on the lap joint to position the roof.

[0015] A second aspect of the present disclosure provides a rail vehicle body, comprising a body; a door post mounted at the door frame of the main body; the side beam profile as described above mounted at the top of the door post; and a roof mounted at the top of the side beam profile.

[0016] According to an embodiment of the present disclosure, parts of the side beam profile located outside the range of 160 mm to 240 mm on both sides of the door pillar on the inner side of the second side beam are removed.

[0017] According to the side beam profile and rail vehicle body provided by the present invention, the main body has multiple chambers, so as to adjust and distribute the stiffness of the side beam profile; the support beam is located on the inner side of the main body, and the top of the support beam extends upward in an inclined direction close to the main body, thereby providing an upward and outward support force to the main body, thereby further improving the stiffness of the side beam profile to meet the strength and stiffness required by the side beam profile. The side beam profile no longer needs to be welded with reinforcing ribs, which reduces the amount of welding, thereby improving the convenience and efficiency of the installation of the side beam profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0019] Figure 1 Schematically shows a partial perspective view of a rail vehicle body according to an embodiment of the present disclosure;

[0020] Figure 2 Schematically shows another partial perspective view of a rail vehicle body according to an embodiment of the present disclosure;

[0021] Figure 3 yes Figure 2 A magnified view of the top of the center door pillar; and

[0022] Figure 4 A side view of a side beam profile according to an embodiment of the present disclosure is schematically shown.

[0023] Reference numerals

[0024] 1. Main body; 11. First side beam; 12. Second side beam; 13. First connecting beam; 131. First extension portion; 14. Second connecting beam; 141. Second extension portion; 15. Third connecting beam; 16. Fourth connecting beam; 17. Fifth connecting beam; 18. Overlap portion; 181. Positioning groove; 19. Rib; 2. Support beam; 21. Bending portion; 3. First chamber; 31. Second chamber; 32. Third chamber; 33. Fourth chamber; 4. Auxiliary chamber; 5. Strengthening beam; 6. Variable thickness portion; 7. First slide groove; 8. Second slide groove; 9. Eaves; 100. Vehicle body; 101. Door pillar; 102. Door mechanism; 103. Roof; 104. Entrance and exit. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0026] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise," "include," etc. used herein indicate the presence of the features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0027] 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.

[0028] When expressions such as “at least one of A, B, and C, etc.” are used, they should generally be interpreted in accordance with 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 is not limited to systems having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, and C, etc. When expressions such as “at least one of A, B, or C, etc.” are used, they should generally be interpreted in accordance with the meaning commonly understood by those skilled in the art. For example, “a system having at least one of A, B, or C” should include but is not limited to systems having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, and C, etc.

[0029] It should also be noted that directional terms such as "upper," "lower," "front," "back," "left," and "right" mentioned in the embodiments are merely references to the directions in the accompanying drawings and are not intended to limit the scope of protection of this disclosure. Throughout the drawings, identical elements are represented by identical or similar reference numerals. Conventional structures or configurations will be omitted where they may cause confusion in understanding this disclosure.

[0030] Figure 1 A partial perspective view of a rail vehicle body according to an embodiment of the present disclosure is schematically shown. Figure 2 Another partial perspective view of a rail vehicle body according to an embodiment of the present disclosure is schematically shown.

[0031] The embodiment of the present disclosure provides a rail vehicle body such as Figure 1 and Figure 2 As shown, the rail vehicle body includes a body 100, door pillars 101, side beam profiles, and a roof 103. The door pillars 101 are mounted on the door frame of the main body 1. The side beam profiles are mounted on the top of the door pillars 101. The roof 103 is mounted on the top of the side beam profiles.

[0032] In an exemplary embodiment, Figure 1 and Figure 2 As shown, the car body 100 is the main structure of the rail vehicle body. The car body 100 is provided with entrances and exits 104 on the left and right sides in the direction of travel for passengers to enter and exit the car body 100. Two door pillars 101 are generally provided at the location of the entrance and exit 104, and the two door pillars 101 are respectively installed on both sides of the entrance and exit 104. The side beam profile is installed on the top of the two door pillars 101 to install the door mechanism 102. The two ends of the roof 103 are respectively installed on the top of the side beam profile located on both sides of the car body 100 in the direction of travel. In this way, the side beam profile integrates the car body 100, the door pillars 101 and the roof 103, which is convenient for installation.

[0033] Figure 3 yes Figure 2 An enlarged view of the top of the middle door pillar 101. Figure 4 A side view of a side beam profile according to an embodiment of the present disclosure is schematically shown.

[0034] Based on the same inventive concept, the embodiment of the present disclosure also proposes a side beam profile, such as Figure 1 、 Figure 3 and Figure 4 As shown, the side beam profile includes a main body 1 and a support beam 2. The main body 1 has multiple chambers and is configured to be installed between the door pillar 101 and the roof 103 of the rail vehicle body 100. The support beam 2 is disposed inside the main body 1, with the bottom of the support beam 2 connected to the bottom of the main body 1, and the top of the support beam 2 extends upward and obliquely toward the main body 1 and is connected to the main body 1.

[0035] It should be noted that the side beam profile is installed between the door pillars 101 and the roof 103 of the rail vehicle body 100. The inner side of the side beam profile refers to the side located inside the body 100, while the outer side of the side beam profile refers to the side located outside the body 100. The two ends of the roof 103 of the body 100 are respectively connected to the top of the side beam profile on both sides of the travel direction of the body 100. The door pillars 101 of the body 100 are connected to the bottom of the side beam profile.

[0036] In detail, the bottom of the main body 1 is arranged roughly vertically and is connected to the door pillar 101 by welding. The top of the main body 1 is inclined and bent upward toward the direction close to the interior of the vehicle body 100, and is welded to the end of the roof 103. The main body 1 has a plurality of chambers, and the chamber space at the bottom of the main body 1 is small, thereby providing greater rigidity for the side beam profile to meet the required bearing capacity and bending resistance. The chamber space at the top of the main body 1 in the inclined and bent position is large and has less rigidity, thereby providing the required bending degree, causing the side beam profile to be excessively inclined and bent, thereby adjusting the rigidity of the distributed side beam profile.

[0037] According to an embodiment of the present disclosure, the main body 1 has multiple chambers to adjust and distribute the stiffness of the side beam profile. The support beam 2 is located inside the main body 1, and the top of the support beam 2 extends upward and tilted toward the main body 1, thereby providing upward and outward support to the main body 1, thereby further improving the stiffness of the side beam profile to meet the required strength and stiffness of the side beam profile. The side beam profile no longer needs to be welded with reinforcing ribs 19, thereby improving the convenience and efficiency of the side beam profile installation.

[0038] In an exemplary embodiment, Figure 3 and Figure 4 As shown, the main body 1 includes a first side beam 11, a second side beam 12 and a plurality of connecting beams. The second side beam 12 is located on the inner side of the first side beam 11 ( Figure 4 The second side beam 12 is located to the left of the first side beam 11 and is spaced apart from the first side beam 11. Multiple connecting beams are spaced apart from each other from bottom to top between the first side beam 11 and the second side beam 12 to form multiple chambers. The connecting beams include a first connecting beam 13 located at the bottom. The first connecting beam 13 is configured to connect the bottom ends of the first side beam 11 and the second side beam 12 for mounting on the door pillar 101.

[0039] In an exemplary embodiment, the second side beam 12 is milled inward by 8 mm to 12 mm at the connection position with the first connecting beam 13, for example, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, etc., to reduce the stress concentration effect at the connection position between the second side beam 12 and the first connecting beam 13.

[0040] In an exemplary embodiment, Figure 4 As shown, the first side beam 11 and the second side beam 12 are spaced apart from each other and are inclined and bent from bottom to top toward the interior of the vehicle body 100 (as shown in FIG. Figure 4 The shape of the vehicle body 100 is specifically set according to the shape of the vehicle body 100.

[0041] In an exemplary embodiment, Figure 4 As shown, there are five connecting beams, including, from bottom to top, the first connecting beam 13, the second connecting beam 14, the third connecting beam 15, the fourth connecting beam 16, and the fifth connecting beam 17. Each connecting beam, together with the first side beam 11 and the second side beam 12, form, from bottom to top, the first cavity 3, the second cavity 31, the third cavity 32, and the fourth cavity 33. The number of connecting beams can also be four, six, or eight, etc., and is not limited here and can be set according to actual needs.

[0042] In an exemplary embodiment, Figure 3 and Figure 4As shown, the first connecting beam 13 is connected to the bottom of the first side beam 11 and the second side beam 12. The first connecting beam 13 is installed on the door column 101 including but not limited to welding or bolting, and is specifically set according to actual needs. The second connecting beam 14, the third connecting beam 15 and the fourth connecting beam 16 are arranged horizontally, and the space of the second cavity 31 and the third cavity 32 formed is relatively small to meet the strength and rigidity required by the side beam profile and provide the required bearing capacity. The fifth connecting beam 17 is arranged at an angle, and is specifically set according to the shape of the roof 103, and the space of the fourth cavity 33 formed is relatively large and is located at the inclined curved portion of the first side beam 11 and the second side beam 12 to meet the required bearing capacity and bending degree, thereby adjusting the rigidity of the distribution side beam profile.

[0043] In an exemplary embodiment, Figure 4 As shown, ribs 19 are provided in the second chamber 31 , the third chamber 32 and the fourth chamber 33 , and both ends of the ribs 19 are respectively connected to the first side beam 11 and the second side beam 12 to further improve the strength and rigidity between the first side beam 11 and the second side beam 12 .

[0044] In an exemplary embodiment, Figure 1 、 Figure 3 and Figure 4 As shown, the top ends of the first side beam 11 and the second side beam 12 extend out from the connecting beam at the top ( Figure 4 A lap portion 18 is formed outside the fifth connecting beam 17 , and a positioning groove 181 is provided on the lap portion 18 to position the roof 103 .

[0045] In this embodiment, the end of the roof 103 overlaps the overlapping portion 18, and the end of the roof 103 is located in the positioning groove 181. The positioning groove 181 limits the end of the roof 103, thereby positioning the position of the roof 103, making it easier to weld the end of the roof 103 to the overlapping portion 18.

[0046] In an exemplary embodiment, Figure 4 As shown, the support beam 2 is located inside the main body 1 ( Figure 4 The bottom of the support beam 2 is arranged approximately parallel to the bottom of the second side beam 12, spaced apart from the bottom, and connected to the first extension 131 of the first connecting beam 13 extending toward the support beam 2. The top of the support beam 2 is tilted to the right and connected to the intersection of the second side beam 12 and the connecting beam (third connecting beam 15) located in the middle.

[0047] In an exemplary embodiment, Figure 4 As shown, the middle portion of the support beam 2 is bent to form a bent portion 21 . The bent portion 21 corresponds to the second connecting beam 14 and is connected to a second extending portion 141 of the second connecting beam 14 extending toward the support beam 2 .

[0048] According to an embodiment of the present disclosure, the support beam 2 is located on the inner side of the second side beam 12, and the top of the support beam 2 extends obliquely upward (obliquely upward to the right) toward the direction close to the main body 1, thereby providing upward and outward support force to the main body 1, thereby further improving the stiffness of the side beam profile to meet the strength and stiffness required by the side beam profile.

[0049] In detail, since the stiffness and strength of the intersection of the second side beam 12 and the third connecting beam 15 are relatively large, the top of the support beam 2 is connected to the intersection of the second side beam 12 and the third connecting beam 15, reducing the risk of the second side beam 12 bending due to the force of the support beam 2.

[0050] Furthermore, the bent portion 21 of the support beam 2 is connected to the second extension portion 141 of the second connecting beam 14, which can disperse the force on the support beam 2, further improve the stiffness and strength of the side beam profile to meet the strength and stiffness required by the side beam profile. The side beam profile no longer needs to be welded with reinforcing ribs 19, reducing the amount of welding, thereby improving the convenience and efficiency of the installation of the side beam profile.

[0051] In an exemplary embodiment, Figure 4 As shown, the second side beam 12, the first connecting beam 13, the support beam 2, and the second connecting beam 14 form an auxiliary cavity 4. At least one reinforcing beam 5 is disposed in the first cavity 3 and / or the auxiliary cavity 4. The reinforcing beam 5 is connected between the second side beam 12 and the first side beam 11, or between the second side beam 12 and the support beam 2, thereby further improving the strength and rigidity of the side beam profile.

[0052] In an exemplary embodiment, Figure 3 and Figure 4 As shown, two reinforcing beams 5 are provided in both the first chamber 3 and the auxiliary chamber 4. The first ends of the two reinforcing beams 5 in the first chamber 3 are connected to the middle of the second side beam 12 in the first chamber 3, and the second ends of the two reinforcing beams 5 extend away from each other to the first side beam 11. The first ends of the two reinforcing beams 5 in the auxiliary chamber 4 are connected to the middle of the second side beam 12 in the auxiliary chamber 4, and the second ends of the two reinforcing beams 5 extend away from each other to the support beam 2. The reinforcing beams 5 and the second side beams 12 in the first chamber 3 and the auxiliary chamber 4 form a "M"-shaped structure, which is specifically set according to actual needs.

[0053] According to the embodiments of the present disclosure, the reinforcing beam 5 is connected between the second side beam 12 and the first side beam 11, or between the second side beam 12 and the support beam 2, further dividing the first chamber 3 and the auxiliary chamber 4 into a plurality of small chambers. On the basis of ensuring the plasticity of the material and the feasibility of the forming process, the strength and rigidity of the side beam profile are improved to meet the bearing capacity required by the side beam profile, and the safety of the connection between the door column 101 and the roof 103 is improved.

[0054] In an exemplary embodiment, Figure 4 As shown, the bottom of the first side beam 11 and / or the bottom of the support beam 2 and the side surface corresponding to the second side beam 12 extend toward the second side beam 12 to form a variable thickness portion 6. Specifically, the bottom of the first side beam 11 transitions to the left to form the variable thickness portion 6. The bottom of the support beam 2 transitions to the right to form the variable thickness portion 6.

[0055] According to the embodiment of the present disclosure, the thickness of the bottom of the first side beam 11 and the support beam 2 is greater than the thickness of the middle portion of the first side beam 11 and the support beam 2, respectively, thereby improving the strength and rigidity of the bottom of the first side beam 11 and the support beam 2, and further improving the bearing capacity and bending strength of the bottom of the side beam profile. By providing the variable thickness portion 6, not only the local rigidity of the first side beam 11 and the support beam 2 is increased, but also the material utilization efficiency is maximized, and the space occupied by the side beam profile is increased.

[0056] In an exemplary embodiment, Figure 1 、 Figure 3 and Figure 4 As shown, the support beam 2 is away from the side of the second side beam 12 ( Figure 4 The left side of the middle support beam 2 is provided with a first chute 7, and the second side beam 12 above the support beam 2 is close to the side of the first chute 7 ( Figure 4 A second slide groove 8 is provided on the left side of the second side beam 12, and the first slide groove 7 and the second slide groove 8 are configured to install the door mechanism 102.

[0057] In one exemplary embodiment, the second chute 8 is installed at the intersection of the second side beam 12 and the fourth connecting beam 16. This location provides greater strength and rigidity, thereby meeting the required load-bearing capacity of the second chute 8 and reducing the risk of bending of the second side beam 12. Thus, the door mechanism 102 is installed at the locations of the first and second chute 7 and 8, and the side beam profile integrates the vehicle body 100, door pillars 101, and roof 103, making installation and operation convenient.

[0058] In an exemplary embodiment, Figure 1 、 Figure 3 and Figure 4 As shown, the first side beam 11 is away from the side of the second side beam 12 ( Figure 4 An outer eave 9 for diverting rainwater is provided on the right side of the first side beam 11. The outer eave 9 comprises a first portion and a second portion. The first portion is arranged horizontally, with the first end of the first portion connected to the junction of the first side beam 11 and the connecting beam. The first end of the second portion is connected to the first end of the first portion, and the second end of the second portion is arranged upwardly and tilted to divert rainwater.

[0059] According to the embodiment of the present disclosure, since the strength and rigidity of the connection position between the first side beam 11 and the connecting beam are relatively large, the required bearing capacity is provided for the outer eaves 9, and the risk of the first side beam 11 being bent due to the force of the outer eaves 9 is reduced.

[0060] Furthermore, the outer eaves 9 receives rainwater flowing downward from the outside of the first side beam 11 and guides the rainwater to both ends of the outer eaves 9, thereby preventing the rainwater from flowing downward to the position of the entrance and exit 104, avoiding getting passengers wet, and improving the passengers' user experience.

[0061] In an exemplary embodiment, Figure 1 、 Figure 2 and Figure 3 As shown, the vehicle body 100 is generally made of aluminum alloy. The rail vehicle body side beam profile located 200 mm on either side of the door pillar 101 is removed from the inner side of the second side beam 12. Specifically, the inner side of the second side beam 12 can be removed by milling or cutting, which is not limited here.

[0062] It should be noted that the removed area may also be an area between 160 mm and 240 mm on both sides of the door pillar 101. For example, 160 mm, 180 mm, 200 mm, 220 mm, 240 mm, etc., which is set according to actual needs.

[0063] In an exemplary embodiment, Figure 1 、 Figure 2 and Figure 3 As shown, at entrance and exit 104 of the rail vehicle body, no components below the second connecting beam 14 of the side beam profile exist. The first chamber 3, auxiliary chamber 4, and reinforcing beam 5 are located at the corners above and to the left of entrance and exit 104 to maintain the required rigidity and strength. In the event of a single-point rescue outside the pillow, the stress position at the corners of entrance and exit 104 is maintained within the safety threshold.

[0064] In an exemplary embodiment, Figure 1 、 Figure 2 and Figure 3As shown, the side beam profile located within the range of 160mm to 240mm from the centerline position of the top of the entrance and exit 104 on the inner side of the second side beam 12 is removed. The side beam profile located outside the range of 160mm to 240mm from the centerline position of the top of the entrance and exit 104 on the inner side of the second side beam 12 retains 160mm to 240mm.

[0065] According to the embodiments of the present disclosure, the side beam profile is partially removed while ensuring safety and installing the door mechanism 102, thereby reducing the weight of the side beam profile and maintaining the lightweight of the rail vehicle body.

[0066] According to the side beam profile and rail vehicle body provided in this embodiment, the main body 1 has a plurality of chambers, so as to adjust and distribute the stiffness of the side beam profile; the support beam 2 is located on the inner side of the main body 1, and the top of the support beam 2 extends upwardly and tilted toward the direction close to the main body 1, thereby providing an upward and outward support force to the main body 1, thereby further improving the stiffness of the side beam profile to meet the strength and stiffness required by the side beam profile. The side beam profile no longer needs to be welded with reinforcing ribs 19, which reduces the amount of welding, thereby improving the convenience and efficiency of the installation of the side beam profile.

[0067] The embodiments of the present disclosure are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although each embodiment has been described separately above, this does not mean that the measures in each embodiment cannot be used in combination to advantage. The scope of the present disclosure is defined by the appended claims and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A side beam profile, characterized in that: include: A main body (1) having a plurality of chambers and configured to be mounted between a door pillar (101) and a roof (103) of a rail vehicle body; and A support beam (2) is arranged on the inner side of the main body (1), the bottom of the support beam (2) is connected to the bottom of the main body (1), and the top of the support beam (2) extends upward in an inclined direction toward the main body (1) and is connected to the main body (1); The main body (1) comprises: a first side beam (11); a second side beam (12), located on the inner side of the first side beam (11) and spaced apart from the first side beam (11); and A plurality of connecting beams are spaced apart from bottom to top between the first side beam (11) and the second side beam (12) to form a plurality of the chambers; The connecting beam comprises a first connecting beam (13) located at the bottom, and the first connecting beam (13) is configured to connect the bottom ends of the first side beam (11) and the second side beam (12) so as to be mounted on the door column (101); The bottom of the support beam (2) is arranged approximately parallel to the bottom of the second side beam (12) and spaced apart, and is connected to a first extension portion (131) of the first connecting beam (13) extending toward the support beam (2); the top end of the support beam (2) is connected to the intersection of the second side beam (12) and the connecting beam located in the middle.

2. The side beam profile according to claim 1, characterized in that: The middle portion of the support beam (2) is bent to form a bent portion (21), the bent portion (21) corresponding to the second connecting beam (14) located above the first connecting beam (13), and connected to a second extension portion (141) of the second connecting beam (14) extending toward the support beam (2).

3. The side beam profile according to claim 2, characterized in that: The first side beam (11), the first connecting beam (13), the second side beam (12) and the second connecting beam (14) form a first cavity (3); the second side beam (12), the first connecting beam (13), the support beam (2) and the second connecting beam (14) form an auxiliary cavity (4); and at least one reinforcing beam (5) is provided in the first cavity (3) and / or the auxiliary cavity (4).

4. The side beam profile according to claim 3, characterized in that: Two reinforcing beams (5) are provided in each of the first chamber (3) and the auxiliary chamber (4), and the first ends of each of the two reinforcing beams (5) are connected to the middle of the second side beam (12) located in the first chamber (3) or the auxiliary chamber (4), and the second ends extend in directions away from each other to the first side beam (11) or the support beam (2).

5. The side beam profile according to any one of claims 1 to 4, characterized in that: The bottom of the first side beam (11) and / or the bottom of the support beam (2) and the side surface corresponding to the second side beam (12) extend in a direction close to the second side beam (12) to form a variable thickness portion (6).

6. The side beam profile according to any one of claims 1 to 4, characterized in that: A first slide groove (7) is provided on the side of the support beam (2) facing away from the second side beam (12), and a second slide groove (8) is provided on the side of the second side beam (12) located above the support beam (2) close to the first slide groove (7), and the first slide groove (7) and the second slide groove (8) are constructed to install a door mechanism (102).

7. The side beam profile according to any one of claims 1 to 4, characterized in that: An outer eave (9) for diverting rainwater is provided on a side of the first side beam (11) away from the second side beam (12), and the outer eave (9) is connected to the connection between the first side beam (11) and the connecting beam.

8. The side beam profile according to claim 1, characterized in that: The top ends of the first side beam (11) and the second side beam (12) extend out of the connecting beam at the top to form a lap joint (18), and a positioning groove (181) is provided on the lap joint (18) to position the roof (103).

9. A rail vehicle body, characterized in that: include: Vehicle body (100); A door post (101) is mounted on the door frame of the main body (1); The side beam profile according to any one of claims 1 to 8, mounted on the top of the door pillar (101); and A vehicle roof (103) is mounted on the top of the side beam profile.

10. The rail vehicle body according to claim 9, characterized in that: The parts of the side beam profile located outside 200 mm on both sides of the door pillar (101) on the inner side of the second side beam (12) are removed.

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