CN120517457A - Window frame structure, low-floor rail vehicle and installation method - Google Patents

Abstract

The invention provides a window frame structure, a low-floor railway vehicle and an installation method, wherein the window frame structure is used for being installed on the low-floor railway vehicle and comprises an installation frame, two groups of upright posts, a support frame and a support frame, wherein the installation frame extends in the length direction of the railway vehicle and is arranged on side wall upper edge beams of the railway vehicle, the two groups of upright posts extend in the height direction of the railway vehicle and are respectively arranged at two ends of the installation frame, and the support frame is arranged below the installation frame and is connected with the two groups of upright posts, so that the installation frame, the two groups of upright posts and the support frame are mutually connected to form a pre-group frame so as to enclose a vehicle window installation area.

Description

Window frame structure, low-floor railway vehicle and installation method

Technical Field

At least one embodiment of the present disclosure relates to the technical field of low-floor rail vehicles, and in particular to a window frame structure, a low-floor rail vehicle and an installation method.

Background

A low-floor rail vehicle refers to a light rail vehicle in which the vehicle floor is less than 40 cm from the track surface to facilitate passengers getting on and off. The body of a low-floor railway vehicle needs to meet both the light-weight requirement and the high-strength requirement.

In the related art, a plurality of connection plates and reinforcing plates are generally required to be welded to a side wall structure and a side wall roof rail of a low-floor railway vehicle to meet the required strength requirement. In the window and door interface areas, the web may have a variety of shapes in order to achieve a mounting fit, resulting in more complex welding. Because the welding quantity of the connecting plate is large, the welding seam is short, the welding quality is difficult to ensure, the flatness of the vehicle body is poor, and the installation operation efficiency is low.

Disclosure of Invention

In view of the above, the present disclosure provides a window frame structure, a low-floor rail vehicle, and an installation method for at least partially solving the above technical problems, improving the flatness of the window frame structure and the vehicle body, reducing the welding complexity, and improving the installation operation efficiency.

The first aspect of the disclosure provides a window frame structure for being mounted on a low-floor rail vehicle, which comprises a mounting frame, two groups of upright posts, a supporting frame and a supporting frame, wherein the mounting frame extends in the length direction of the rail vehicle and is arranged on a side wall upper edge beam of the rail vehicle, the two groups of upright posts extend in the height direction of the rail vehicle and are respectively arranged at two ends of the mounting frame, the supporting frame is arranged below the mounting frame and is connected with the two groups of upright posts, and the mounting frame, the two groups of upright posts and the supporting frame are mutually connected to form a pre-group frame so as to enclose a vehicle window mounting area.

According to the embodiment of the disclosure, the mounting frame comprises a mounting beam and a reinforcing part, wherein the mounting beam is arranged on the side wall upper edge beam and is opposite to the side wall upper edge beam to form an accommodating space, and the reinforcing part is arranged in the accommodating space and is supported between the mounting beam and the side wall upper edge beam.

According to the embodiment of the disclosure, the side wall upper edge beam comprises a main body part, a first supporting beam, a second supporting beam and an extending part, wherein the main body part extends in the height direction, the first supporting beam and the second supporting beam are respectively arranged at the top end and the bottom end of the main body part and extend towards the direction close to the mounting frame, the extending part is arranged at one end of the first supporting beam, which is far away from the main body part, and is in surface contact with the mounting frame, the mounting beam comprises a beam body, the beam body is parallel to and in surface contact with the extending part, the beam body and the main body part are arranged at intervals to form the accommodating space, and the first limiting part is arranged at the bottom end of the beam body and is in butt joint with the second supporting beam so as to prevent the mounting beam from moving relative to the side wall upper edge beam.

According to an embodiment of the disclosure, the mounting beam further includes a second limiting portion disposed at an end of the first limiting portion away from the beam body so as to abut against a side of the main body portion facing the beam body.

According to the embodiment of the disclosure, one side of the mounting frame, which faces away from the side wall upper edge beam, is coplanar with one side of the upright, which faces away from the side wall upper edge beam.

According to an embodiment of the present disclosure, the beam body is provided with a through hole penetrating the beam body to form an interface for mounting electrical equipment and/or an interior board.

According to the embodiment of the disclosure, the beam body is provided with a plurality of first process holes penetrating through the beam body, and the plurality of first process holes are distributed at intervals.

According to the embodiment of the disclosure, the upright post is of a hollow tubular structure, the side wall of the upright post is provided with a plurality of through second process holes, and the second process holes are distributed at intervals in the height direction of the upright post.

According to an embodiment of the present disclosure, the window frame structure further comprises a window joist, which is provided at a side of the mounting frame and/or the upright and/or the support frame facing the window mounting area.

According to the embodiment of the disclosure, the car window joist comprises a first part and a second part, wherein the first part is arranged on at least one of the mounting frame, the upright post and the supporting frame, and the second part is connected with the first part and extends towards the direction close to the car window mounting area.

A second aspect of the disclosure provides a low-floor rail vehicle, comprising a vehicle body provided with a side wall roof rail extending in a length direction of the rail vehicle, a window frame structure provided with the side wall roof rail, and a window body provided with a window installation area formed by surrounding the window frame structure.

The third aspect of the disclosure provides a method for installing a window frame structure on a low floor rail vehicle, which comprises the steps that an installation beam of an installation frame, two groups of upright posts and a support frame are mutually welded to form a pre-assembled frame so as to enclose a vehicle window installation area, a reinforcing part of the installation frame is welded on a side wall upper edge beam, and the pre-assembled frame is welded on the side wall upper edge beam, so that the reinforcing part is supported between the side wall upper edge beam and the installation beam.

According to the window frame structure, the low floor railway vehicle and the installation method provided by the disclosure, in the installation process, an operator can connect the installation frame with two groups of stand columns in a welding mode, and connect the support frame arranged below the installation frame with the two groups of stand columns. Thus, the mounting frame, the two groups of upright posts and the supporting frame are mutually connected to form a pre-group frame so as to enclose to form a car window mounting area. The installation space and the installation place of the pre-assembled frame are not limited, and the operation is convenient. And after the pre-assembled frame is assembled, installing the installation frame of the pre-assembled frame on the side wall upper edge beam of the railway vehicle, thereby completing the installation of the window frame structure. Through setting up the mounting bracket, satisfy the required intensity of window frame structure, simultaneously because the mounting bracket is overall structure to improve the planarization of window frame structure and automobile body. By arranging the pre-assembled frames, the effect of reducing welding complexity and improving installation operation efficiency is achieved.

Drawings

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

FIG. 1 schematically illustrates an installation schematic of a window frame structure according to an embodiment of the present disclosure;

fig. 2 schematically illustrates a perspective view of a window frame structure according to an embodiment of the present disclosure;

FIG. 3 schematically illustrates a partial view of a window frame structure according to an embodiment of the disclosure;

FIG. 4 schematically illustrates a cross-sectional view of a mounting bracket and a side wall roof rail of a window frame structure according to an embodiment of the present disclosure, and

Fig. 5 schematically illustrates a partial view of a window frame structure according to an embodiment of the disclosure.

Reference numerals

1. The side wall roof side rail comprises a side wall upper side rail body, 11, a main body part, 12, a first supporting beam, 13, a second supporting beam, 14, an extension part, 2, a mounting rack, 21, a mounting beam, 211, a beam body, 2111, a through hole, 2112, a first process hole, 212, a first limiting part, 213, a second limiting part, 22, a reinforcing part, 3, an upright post, 31, a second process hole, 4, a supporting frame, 5, a window mounting area, 6, a containing space, 7, a window supporting beam, 71, a first part, 72 and a second part.

Detailed Description

For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and/or the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

All terms, including technical and scientific terms, used herein have the meaning commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the terms used herein should be construed to have meanings consistent with the context of the present specification and should not be construed in an idealized or overly formal manner.

Where a formulation similar to at least one of "A, B and C, etc." is used, such as "a system having at least one of A, B and C" shall be interpreted in the sense one having ordinary skill in the art would understand the formulation generally, for example, including but not limited to systems having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc. Where a formulation similar to at least one of "A, B or C, etc." is used, such as "a system having at least one of A, B or C" shall be interpreted in the sense one having ordinary skill in the art would understand the formulation generally, for example, including but not limited to systems having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.

It should be further noted that, the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the drawings, and are not intended to limit the scope of the present disclosure. Like elements are denoted by like or similar reference numerals throughout the drawings. Conventional structures or constructions will be omitted when they may cause confusion in understanding the present disclosure.

The side wall structure and the side wall roof rail of the low-floor railway vehicle usually need to be welded with a plurality of connecting plates and reinforcing plates so as to meet the required strength requirement and meet the light-weight requirement. In the area of the window and door interfaces, the web may have a variety of shapes for the purpose of achieving a mounting fit. During the installation process, the corresponding connection plates need to be matched, thus leading to more complex welding. Because the welding quantity of the connecting plate is large, and the welding seam of the connecting plate is short, the welding quality is difficult to ensure, the flatness of the vehicle body is influenced, and the installation operation efficiency is low.

A first aspect of the disclosed embodiments proposes a window frame structure for mounting to a low floor rail vehicle, as shown in fig. 1 and 2, the window frame structure comprising a mounting frame 2, two sets of uprights 3 and a supporting frame 4. The mounting frame 2 extends in the length direction of the railway vehicle and is arranged on the side wall upper side beam 1 of the railway vehicle. The two sets of upright posts 3 extend in the height direction of the rail vehicle and are respectively arranged at two ends of the mounting frame 2. The support frame 4 sets up in the below of mounting bracket 2 to be connected with two sets of stands 3, make mounting bracket 2, two sets of stands 3 and support frame 4 interconnect form the frame of pre-assembling, with enclosing formation door window installation region 5.

The vehicle body of the low-floor railway vehicle needs to meet both the requirement of light weight and the requirement of high strength. Thus, the body side wall structure of the low-floor railway vehicle is mainly used for bearing the supporting component.

Further, the side wall structure of the low-floor railway vehicle body generally adopts a hollowed-out frame structure, and the outer surface of the hollowed-out frame structure is covered by a decorative plate, so that the requirements of light weight and high strength are met. The window frame structure of the side wall structure of the vehicle body also meets the requirements of light weight and high strength.

In detail, the mounting frame 2 of the window frame structure extends in the longitudinal direction (transverse direction in fig. 1) of the rail vehicle. The mounting frame 2 includes, but is not limited to, a side wall roof rail 1 mounted to a rail vehicle by resistance spot welding, laser welding, snap-fit connection, riveting or any other connection, and is not limited herein, and is specifically limited according to actual needs. The window frame structure is located inside the side sill 1.

As shown in fig. 1 and 2, the two sets of columns 3 extend in the height direction (vertical direction in fig. 1) of the railway vehicle. The pillar 3 of the window frame structure is the same member as the pillar 3 of the vehicle body for mounting the door. Two sets of stand 3 set up respectively in the left and right sides both ends of mounting bracket 2. The two sets of upright posts 3 can be connected with the mounting frame 2 through a welded connection mode, and meanwhile, the top ends of the two sets of upright posts 3 can also be connected with the side wall upper edge beam 1 through a welded connection mode, and it is understood that other connection modes such as riveting and bolting can also be adopted, so that the connection mode is not limited. The support frame 4 is arranged below the mounting frame 2 and is arranged at an interval relative to the mounting frame 2. The left and right ends of the supporting frame 4 are connected with two groups of upright posts 3.

It should be noted that, the mounting frame 2, the two sets of uprights 3 and the supporting frame 4 are assembled in advance and connected to form a pre-assembled frame so as to enclose and form the window mounting area 5. The installation space and the installation place of the pre-assembled frame are not limited, and the operation is convenient. After the pre-assembled frame is assembled, the mounting frame 2 of the pre-assembled frame is mounted on the side wall upper side beam 1 of the railway vehicle, so that the window frame structure is mounted.

In such an embodiment, by providing the mounting frame 2, the required strength of the window frame structure is satisfied, and simultaneously, since the mounting frame 2 is of an integral structure, the flatness of the window frame structure and the vehicle body is improved. By arranging the pre-assembled frames, the effect of reducing welding complexity and improving installation operation efficiency is achieved.

In one exemplary embodiment, as shown in fig. 1,2,3 and 4, the mounting bracket 2 includes a mounting beam 21 and a reinforcement 22. The mounting beam 21 is disposed on the side wall roof rail 1, and is disposed opposite to the side wall roof rail 1 to form an accommodating space 6. The reinforcing portion 22 is provided in the accommodating space 6 and is supported between the mounting beam 21 and the side wall roof rail 1.

In detail, the mounting beam 21 is mounted on the inner side of the side wall roof rail 1 (on the right side of the side wall roof rail 1 in fig. 4) by, but not limited to, resistance spot welding, laser welding, snap-fit connection, riveting or any other connection. In fig. 3 and 4, the mounting beam 21 is disposed opposite to the side wall roof rail 1 to form the accommodation space 6.

Further, the reinforcing portion 22 may be a hollow tubular structure, bent sheet metal, or the like. The reinforcement 22 is located in the accommodation space 6. The reinforcement 22 is mounted between the mounting beam 21 and the side wall roof rail 1 by, but not limited to, resistance spot welding, laser welding, snap-fit connection, riveting or any other connection means, and abuts against both the mounting beam 21 and the side wall roof rail 1.

In such an embodiment, since the mounting beam 21 is of a unitary structure, the flatness of the window frame structure and the vehicle body is improved. The reinforcing part 22 is supported between the mounting beam 21 and the side wall upper edge beam 1, so that the effect of improving the strength of the mounting beam 21 and the side wall upper edge beam 1 is achieved, and the window frame structure is enabled to achieve the required strength. By providing the mounting beam 21 and the reinforcing portion 22, the effects of reducing the welding amount and the welding complexity are achieved, thereby improving the efficiency of the mounting operation.

In an exemplary embodiment, as shown in fig. 3 and 4, the side wall roof rail 1 includes a main body portion 11, a first corbel 12, a second corbel 13, and an extension portion 14. The main body 11 extends in the height direction. The first corbel 12 and the second corbel 13 are provided at the top and bottom ends of the main body 11, respectively, and extend in a direction approaching the mounting bracket 2. The extension portion 14 is disposed at an end of the first corbel 12 away from the main body portion 11, and is in surface contact with the mounting frame 2.

Specifically, the side wall upper edge beam 1 may be an integral structure, and the side wall upper edge beam 1 may be formed by bending and stamping a sheet metal part. The main body 11 extends in the height direction (vertical direction in fig. 4), and the main body 11 has a stepped plate-like structure. The first corbel 12 and the second corbel 13 are formed by bending the top and bottom ends of the main body 11 in a direction toward the mounting beam 21 (right direction of the main body 11 in fig. 4). The first corbel 12 and the second corbel 13 form an arcuate transition with the main body 11.

The end of the first corbel 12 far away from the main body 11 is bent upwards to form an extension part 14, and the extension part 14 and the first corbel 12 form an arc transition. The extension 14 is in surface contact with the mounting frame 2.

It will be appreciated that the side wall roof rail 1 may also be a split structure, and the side wall roof rail 1 may be formed by, but not limited to, welding, bolts, snap-fit assemblies, or any other connection means.

In one exemplary embodiment, as shown in fig. 3 and 4, the mounting beam 21 includes a beam body 211 and a first stopper 212. The beam body 211 is in parallel and surface contact with the extension portion 14, and the beam body 211 is provided at a distance from the main body portion 11 to form the accommodation space 6. The first limiting portion 212 is disposed at the bottom end of the beam body 211 and abuts against the second supporting beam 13, so as to prevent the mounting beam 21 from moving relative to the side wall roof side rail 1.

In detail, the beam body 211 and the first limiting portion 212 may be an integral structure, and formed by bending and punching a sheet metal member. The beam 211 is parallel to the extension 14 such that the beam 211 is in surface contact with the extension 14.

Further, the first limiting portion 212 is formed by bending the bottom end of the beam body 211 toward the direction approaching the second supporting beam 13 (the left direction of the beam body 211 in fig. 4), and the first limiting portion 212 and the beam body 211 form an arc bending transition. The first limiting portion 212 abuts against the second corbel 13 to prevent the mounting beam 21 from moving relative to the side wall roof side rail 1. Specifically, the first limiting portion 212 abuts against the top surface of the second corbel 13 to prevent the mounting beam 21 from moving downward relative to the side wall roof side rail 1.

It is understood that the beam 211 and the first limiting portion 212 may be a separate structure. The first limiting portion 212 includes, but is not limited to, being mounted to the beam 211 by welding, bolts, snap-fit assemblies, or any other connection.

According to the embodiment of the present disclosure, the beam body 211 is provided to form the receiving space 6 at a distance from the main body 11 due to the shape restrictions of the side wall roof rail 1 and the mounting beam 21, thereby receiving and mounting the reinforcing portion 22. In the process of installing the installation beam 21 on the side wall roof side rail 1, the beam body 211 of the installation beam 21 and the extension portion 14 of the side wall roof side rail 1 are abutted against each other to form surface contact so as to perform resistance spot welding. Simultaneously, the mounting beam 21 is moved downwards, so that the mounting quantity moves downwards relative to the extension part 14 until the first limiting part 212 is abutted with the top surface of the second supporting beam 13, the mounting beam 21 is prevented from moving relative to the side wall upper edge beam 1, a positioning effect is achieved, the mounting beam 21 is prevented from moving relative to the side wall upper edge beam 1 in the mounting process, welding is facilitated, and welding quality is improved.

In an exemplary embodiment, as shown in fig. 3 and 4, the mounting beam 21 further includes a second limiting portion 213, and the second limiting portion 213 is disposed at an end of the first limiting portion 212 away from the beam body 211 (a left end of the first limiting portion 212 in fig. 4) to abut against a side of the main body 11 facing the beam body 211 (a right side of the main body 11 in fig. 4).

Specifically, the second limiting portion 213 is formed by bending the left end of the first limiting portion 212 upward. The second limiting portion 213 and the first limiting portion 212 are integrally formed, and form an arc transition. It is understood that the second limiting portion 213 and the first limiting portion 212 may be separate structures, and the second limiting portion 213 may be mounted to the first limiting portion 212 by welding, bolts, a fastening assembly or any other connection method.

In such an embodiment, the second limiting portion 213 abuts against a side of the main body 11 facing the beam body 211, so as to limit the beam body 211 in the lateral direction of fig. 4, prevent the bottom end of the beam body 211 from moving relative to the side wall roof rail 1, and prevent the top end of the beam body 211 from generating a gap with the extension portion 14 due to the skew of the beam body 211, so that the top end of the beam body 211 is tightly attached to the extension portion 14, and the quality and the firmness of mounting the mounting beam 21 on the side wall roof rail 1 are improved.

In an exemplary embodiment, as shown in fig. X and X, the side of the mounting bracket 2 facing away from the side sill 1 (the front side of the mounting bracket 2 in fig. 2) is coplanar with the side of the pillar 3 facing away from the side sill 1 (the front side of the pillar 3 in fig. 2).

Specifically, in fig. 2, the front side of the beam 211 of the mounting frame 2 is located on the same plane as the front side of the upright 3. Thus, one side of the window frame structure, which is away from the side wall upper edge beam 1, is coplanar, and the flatness of the window frame structure and the vehicle body is improved.

In one exemplary embodiment, as shown in fig. 2, 3 and 5, the beam body 211 is provided with a through hole 2111, and the through hole 2111 penetrates the beam body 211 to form an interface for mounting electrical equipment and/or a built-in board.

Specifically, a plurality of through holes 2111 are provided, and the plurality of through holes 2111 are distributed at intervals in the longitudinal direction and the height direction of the beam body 211. The spacing between the through holes 2111 is determined according to the shape of the electrical equipment and/or the interior board to be mounted.

In such an embodiment, since the through holes 2111 are provided in the beam body 211 and the flatness of the beam body 211 is high, there is no flatness difference between the plurality of through holes 2111. In this way, in the process of installing the electrical equipment and/or the built-in board, installation seats with different thicknesses are not required to be installed any more to adjust the flatness, and only the rivet nuts are required to be installed at the positions of the required through holes 2111 to install the electrical equipment and/or the built-in board, so that the installation complexity is greatly reduced, and the installation efficiency and convenience are improved.

In one exemplary embodiment, as shown in fig. 2, 3 and 5, the beam body 211 is provided with a plurality of first process holes 2112 therethrough, and the plurality of first process holes 2112 are spaced apart.

Specifically, the beam body 211 is processed by a processing method such as punching, laser cutting, or the like to form the first process holes 2112, and the plurality of first process holes 2112 are distributed at intervals in the length direction and/or the height direction of the beam body 211.

In such an embodiment, the weight of the beam body 211 can be effectively reduced by providing the first process hole 2112, and the requirement for weight reduction can be satisfied. The operator can also further improve installation operation convenience through the cold-proof material in the first process hole 2112 An Zhuangche, improves installation effectiveness.

In an exemplary embodiment, as shown in fig. 1, 2 and 5, the window frame structure further comprises a window joist 7, the window joist 7 being arranged on the side of the mounting frame 2 and/or the uprights 3 and/or the supporting frame 4 facing the window mounting area 5.

In detail, the window joists 7 may be provided with one, two, three, four, five, six, etc., as determined specifically as required. The window joist 7 is provided on the side of the mounting frame 2 and/or the uprights 3 and/or the support frame 4 facing the window mounting area 5 and extends towards the window mounting area 5.

Thus, by providing the window joist 7, the window joist 7 provides a mounting base for the window, facilitating the mounting of the window to the window mounting area 5.

In one exemplary embodiment, as shown in fig. 2, 3 and 5, the window joist 7 comprises a first portion 71 and a second portion 72. The first portion 71 is provided on at least one of the mount 2, the column 3, and the support frame 4. The second portion 72 is connected to the first portion 71 and extends in a direction approaching the window mounting region 5.

In detail, in this embodiment, four window joists 7 are provided, and the four window joists 7 are respectively mounted on one side of the mounting frame 2, the two sets of upright posts 3, and the supporting frame 4 facing the window mounting area 5. Depending on the mounting position of the window joist 7, the first portion 71 is made parallel to and in surface contact with the side of the mounting bracket 2 and/or the upright 3 and/or the support frame 4 facing the window mounting area 5. In this way, the stability of the mounting and fixing of the first portion 71 can be improved.

Further, the second portion 72 may be integrally formed with the first portion 71, that is, formed by bending a sheet metal member. It will be appreciated that the second portion 72 and the first portion 71 may also be of a split construction. The second portion 72 includes, but is not limited to, being mounted to the first portion 71 by bolts, snap-fit assemblies, rivet assemblies, or any other connection means, not limited thereto. The second portion 72 extends in a direction approaching the window mounting region 5. In this embodiment, the second portion 72 is perpendicular to the first portion 71, so that the second portion 72 is parallel to a plane on a side of the upright 3, the mounting frame 2, and the support frame 4 facing away from the side sill 1, so that a window mounted on the second portion 72 is parallel to a plane on a side of the upright 3, the mounting frame 2, and the support frame 4 facing away from the side sill 1.

In such an embodiment, the stability of the mounting and fixing of the window joist 7 can be improved by providing the first portion 71 parallel to and in surface contact with the side of the mounting bracket 2 and/or the upright 3 and/or the support bracket 4 facing the window mounting area 5. By providing the second portion 72 extending in a direction towards the vicinity of the window mounting region 5, a mounting base is provided for the window, facilitating window mounting.

In an exemplary embodiment, as shown in fig. 2 and 5, the pillar 3 is of a hollow tubular structure, and the sidewall of the pillar 3 is provided with a plurality of second process holes 31 penetrating therethrough, and the plurality of second process holes 31 are spaced apart in the height direction of the pillar 3.

In detail, the upright 3 has a hollow tubular structure, and a cavity is formed inside the upright 3. The side wall of the pillar 3 is processed by a processing method such as punching, laser cutting, etc. to form a second process hole 31. The second process hole 31 penetrates through the side wall of the upright post 3 and is communicated with the inner cavity of the upright post 3. The plurality of second process holes 31 are spaced apart in the height direction of the column 3. The shape and caliber of the second process hole 31 are not limited herein, and are specifically determined according to actual needs.

In such an embodiment, the second process hole 31 communicates with the inner cavity of the upright 3, so that the welding performing end passes through the second process hole 31 and protrudes into the inner cavity of the upright 3 to perform welding work. Wherein the welding execution end comprises welding tongs, welding bars and the like.

A second aspect of the disclosed embodiments provides a low floor rail vehicle comprising a vehicle body, a window frame structure as described above, and a window frame. The car body is provided with a side wall roof rail 1 extending in the longitudinal direction of the railway car. The window frame structure is arranged on the side wall boundary beam 1. The window body is arranged in a window mounting area 5 formed by enclosing the window frame structure.

In detail, the window frame structure includes a mounting frame 2, two sets of upright posts 3 and a supporting frame 4, where the mounting frame 2, the two sets of upright posts 3 and the supporting frame 4 are connected to form a pre-assembled frame so as to enclose to form a window mounting area 5, as described above, which is not described herein.

The pillar 3 of the window frame structure is the same member as the pillar 3 of the vehicle body for mounting the door. The mounting frame 2 of the window frame structure is mounted to the side wall roof rail 1 and extends downward to be connected to the bottom part of the vehicle body. Like this, be hollow frame construction's window frame structure and regard as the part of side wall, play the effect that bears the weight of support, reach the demand of lightweight and high strength.

Further, the window includes, but is not limited to, a window mounting area 5 formed by mounting to the window frame structure via welding, riveting, bolting, or any other attachment assembly.

A third aspect of the embodiments of the present disclosure proposes an installation method of a window frame structure to a low floor rail vehicle, the installation method including operation S110 to operation S130.

In operation S110, the mounting beam 21 of the mounting bracket 2 and the two sets of uprights 3 and the supporting frame 4 are welded to each other to form a pre-set frame to enclose the window mounting area 5.

In operation S120, the reinforcement 22 of the mounting bracket 2 is welded to the side wall roof rail 1.

In operation S130, the pre-assembled frame is welded to the side wall roof rail 1 such that the reinforcement 22 is supported between the side wall roof rail 1 and the mounting beam 21.

The operation sequence of the operation S110 and the operation S120 may be interchanged or performed simultaneously.

Specifically, in operation S110, two sets of the upright posts 3 are provided at both the left and right ends of the mounting beam 21 in the longitudinal direction. The two sets of uprights 3 can be connected to the mounting beam 21 by means of resistance spot welding. The supporting frames 4 are distributed with the mounting beams 21 at intervals, and the left end and the right end of the supporting frames 4 are connected with the two groups of upright posts 3 in a resistance spot welding mode, so that the welding of the pre-assembled frames is completed. It should be noted that the connection manner between the two sets of upright posts 3, the mounting beam 21 of the mounting frame 2, and the supporting frame 4 may be determined according to actual needs, and is not limited herein.

Further, the pre-assembled frame may be welded in advance between the side wall roof rails 1 of the vehicle body to mount the window frame structure, or may be welded during the mounting of other parts of the vehicle body, thereby improving the mounting efficiency of the low-floor railway vehicle.

In addition, the welding of the pre-assembled frames can be completed on the ground or the working surface, the installation space and the installation place of the pre-assembled frames are not limited, and the operation is convenient.

In operation S120, the reinforcement 22 is mounted to the side wall roof rail 1 by resistance spot welding.

In operation S120, the pre-assembled frame is mounted to the side wall roof rail 1 by means of resistance spot welding, and the reinforcement 22 is further welded to the mounting rail 21 of the mounting bracket 2, thereby improving the firmness of the window frame structure according to the mounting of the side wall roof rail 1. The reinforcing part 22 is supported between the side wall upper edge beam 1 and the mounting beam 21, so that the strength of the window frame structure and the vehicle body is further improved, and the requirements of light weight and high strength are met.

According to the window frame structure, the low-floor railway vehicle and the installation method provided by the embodiment, in the installation process, an operator can connect the installation frame 2 with the two groups of upright posts 3 in a welding mode, and connect the support frame 4 arranged below the installation frame 2 with the two groups of upright posts 3 in a welding mode. In this way, the mounting frame 2, the two sets of uprights 3 and the supporting frame 4 are mutually connected to form a pre-set frame so as to enclose the window mounting area 5. The installation space and the installation place of the pre-assembled frame are not limited, and the operation is convenient. After the pre-assembled frame is assembled, the mounting frame 2 of the pre-assembled frame is mounted on the side wall upper side beam 1 of the railway vehicle, so that the window frame structure is mounted. Through setting up mounting bracket 2, satisfy the required intensity of window frame structure, simultaneously because mounting bracket 2 is overall structure to improve the planarization of window frame structure and automobile body. By arranging the pre-assembled frames, the effect of reducing welding complexity and improving installation operation efficiency is achieved.

The embodiments of the present disclosure are described above. These examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the embodiments are described above separately, this does not mean that the measures in the embodiments cannot be used advantageously in combination. The scope of the disclosure is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be made by those skilled in the art without departing from the scope of the disclosure, and such alternatives and modifications are intended to fall within the scope of the disclosure.

Claims (12)

1. A window frame structure for mounting to a low floor rail vehicle, comprising:

the mounting frame (2) extends in the length direction of the railway vehicle and is arranged on a side wall upper side beam (1) of the railway vehicle;

two groups of upright posts (3) which extend in the height direction of the railway vehicle and are respectively arranged at two ends of the mounting frame (2), and

The support frame (4) is arranged below the mounting frame (2) and is connected with the two groups of upright posts (3), so that the mounting frame (2), the two groups of upright posts (3) and the support frame (4) are mutually connected to form a pre-group frame so as to enclose to form a car window mounting area (5).

2. Window frame structure according to claim 1, characterized in that the mounting frame (2) comprises:

A mounting beam (21) arranged on the side wall upper edge beam (1) and arranged opposite to the side wall upper edge beam (1) to form an accommodating space (6), and

And the reinforcing part (22) is arranged in the accommodating space (6) and is supported between the mounting beam (21) and the side wall upper edge beam (1).

3. The window frame structure according to claim 2, wherein the side wall roof rail (1) comprises:

a main body (11) extending in the height direction;

a first support beam (12) and a second support beam (13) respectively arranged at the top end and the bottom end of the main body part (11) and extending towards the direction approaching the mounting frame (2), and

An extension part (14) which is arranged at one end of the first corbel (12) far away from the main body part (11) and is contacted with the surface of the mounting frame (2);

The mounting beam (21) comprises:

A beam body (211) parallel to and in surface contact with the extension portion (14), the beam body (211) and the main body portion (11) being arranged at a distance to form the accommodation space (6), and

The first limiting part (212) is arranged at the bottom end of the beam body (211) and is abutted against the second supporting beam (13) so as to prevent the mounting beam (21) from moving relative to the side wall upper edge beam (1).

4. A window frame structure according to claim 3, wherein the mounting beam (21) further comprises a second limiting portion (213) disposed at an end of the first limiting portion (212) remote from the beam body (211) so as to abut against a side of the main body portion (11) facing the beam body (211).

5. Window frame structure according to any one of claims 1 to 4, characterized in that the side of the mounting frame (2) facing away from the side wall roof rail (1) is coplanar with the side of the upright (3) facing away from the side wall roof rail (1).

6. A window frame structure according to claim 3, characterized in that the beam body (211) is provided with a through hole (2111), which through hole (2111) penetrates the beam body (211) to form an interface for mounting electrical equipment and/or interior panels.

7. A window frame structure according to claim 3, wherein the beam body (211) is provided with a plurality of first process holes (2112) penetrating therethrough, the plurality of first process holes (2112) being spaced apart.

8. The window frame structure according to any one of claims 1 to 4, wherein the pillar (3) is a hollow tubular structure, and the sidewall of the pillar (3) is provided with a plurality of second process holes (31) penetrating therethrough, and the plurality of second process holes (31) are distributed at intervals in the height direction of the pillar (3).

9. Window frame structure according to claim 1, characterized in that it further comprises a window joist (7), said window joist (7) being arranged at a side of said mounting frame (2) and/or said upright (3) and/or said support frame (4) facing said window mounting area (5).

10. The window frame structure according to claim 9, characterized in that the window joist (7) comprises:

a first part (71) arranged on at least one of the mounting frame (2), the upright post (3) and the supporting frame (4), and

And a second portion (72) connected to the first portion (71) and extending in a direction approaching the window mounting region (5).

11. A low floor rail vehicle comprising:

the vehicle body is provided with a side wall upper side beam (1) extending in the length direction of the railway vehicle;

the window frame structure according to any one of claims 1 to 10, provided on the side wall roof rail (1), and

And the window body is arranged in a window installation area (5) formed by enclosing the window frame structure.

12. A method of installing a window frame structure to a low floor rail vehicle, comprising:

the mounting beam (21) of the mounting rack (2), the two groups of upright posts (3) and the supporting frame (4) are welded with each other to form a pre-assembled frame so as to enclose a car window mounting area (5);

The reinforcing part (22) of the mounting frame (2) is welded on the side wall upper edge beam (1), and

The pre-assembled frame is welded to the side wall upper edge beam (1), so that the reinforcing part (22) is supported between the side wall upper edge beam (1) and the mounting beam (21).