Lightweight cab structure and railway vehicle

Abstract

This invention provides a lightweight driver's cab structure and a rail vehicle, including a driver's cab cover and a driver's cab frame. The driver's cab frame includes a base frame, a ring beam, two anti-collision beams, and several auxiliary beams. The ring beam is connected to the top of the base frame and to the front of the vehicle body. The two anti-collision beams are respectively connected to the front side of the base frame and to the ring beam. The auxiliary beams connect between the two anti-collision beams or between the anti-collision beams and the ring beam. The lightweight driver's cab structure provided by this invention, with the base frame, ring beam, and two anti-collision beams forming a frame structure, combined with the multiple auxiliary beams, forms a stable driver's cab frame. The driver's cab cover covers the outside of the driver's cab frame, and the two together form a stable driver's cab structure. The above-mentioned driver's cab structure has the advantages of convenient installation and simple structure, meets the requirements of lightweight driver's cab design, is suitable for urban rail vehicles with different driver's cab shapes, has good versatility, and is widely applicable.

Description

Technical Field

[0001] This invention belongs to the field of driver's cab structure technology, and more specifically, relates to a lightweight driver's cab structure and rail vehicle. Background Technology

[0002] The existing driver's cab frame structure is composed of metal and is connected to the vehicle body by welding, providing load-bearing and installation interfaces for various equipment and the cab exterior. Because the driver's cab structure is connected to the vehicle body by welding, the frame structure needs to be welded and installed during the vehicle body construction phase. Other driver's cab-related systems need to be assembled in subsequent processes. Modular installation is inefficient, and the metal frame is also heavy, which does not conform to the trend of vehicle lightweighting. Summary of the Invention

[0003] The purpose of this invention is to provide a lightweight driver's cab structure and rail vehicle, which can reduce the processing difficulty of the driver's cab and improve the assembly efficiency of the driver's cab.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a lightweight driver's cab structure is provided, including a driver's cab cover and a driver's cab frame. The driver's cab frame includes a base frame, a ring beam, two anti-collision beams and several auxiliary beams. The ring beam is connected to the top of the base frame and to the front end of the vehicle body. The two anti-collision beams are respectively connected to the front side of the base frame and extend rearward and upward to connect with the ring beam. The auxiliary beams are connected between the two anti-collision beams and between the anti-collision beams and the ring beam.

[0005] In one possible implementation, an upper support beam is also connected between the two anti-collision beams. The upper support beam is connected to the upper part of the anti-collision beam and protrudes upward from the ring beam to support the inner top of the driver's outer cover.

[0006] In some embodiments, the upper support beam includes two columns and a connecting beam connecting the upper ends of the two columns. The two columns are connected to the upper parts of the two anti-collision beams in a one-to-one correspondence. The lower end of the column is provided with a connecting arc plate connected to the front side wall of the anti-collision beam. The connecting beam is connected to the inner wall of the driver's outer cover.

[0007] In one possible implementation, both the underframe and the auxiliary beam are connected to the driver's outer cover via an adjustable assembly. The adjustable assembly includes a first connecting seat, a second connecting seat, and a connecting corner seat. The first connecting seat is connected to the inner wall of the driver's outer cover, the second connecting seat is connected to the auxiliary beam or the underframe, and the connecting corner seat is connected to the first and second connecting seats via a connector.

[0008] In one possible implementation, the connecting corner bracket includes two connecting plates arranged at an included angle;

[0009] The connecting plate is provided with a longitudinal groove arranged in the vertical direction, and the first connecting seat and the second connecting seat are provided with a horizontal groove extending in the horizontal direction; or the connecting plate is provided with a horizontal groove arranged in the horizontal direction, and the first connecting seat and the second connecting seat are provided with a vertical groove extending in the vertical direction; the connecting member is provided through the horizontal groove and the vertical groove.

[0010] In some embodiments, the connecting corner bracket further includes a reinforcing support plate connected between the two connecting plates. The surface of the reinforcing support plate is respectively perpendicular to the two connecting plates, and the reinforcing support plate is located near the same edge of the two connecting plates.

[0011] In one possible implementation, the lower end of the anti-collision beam is connected to the base frame via an adjusting base. The adjusting base includes a connecting upright plate and an outer plate. The connecting upright plate has a vertical groove extending in the vertical direction. The outer plate is used to surround the outer periphery of the anti-collision beam and the connecting upright plate. The outer plate has a horizontally extending transverse groove. The connecting upright plate and the outer plate are connected by a connecting assembly that passes through the transverse groove and the vertical groove.

[0012] In some embodiments, the connecting assembly includes a slider, a threaded rod, and a locking nut. The slider is slidably connected within a vertical groove, the threaded rod is horizontally connected to the slider and extends to the outside of the vertical groove, and the locking nut is threadedly connected to the threaded rod.

[0013] In one possible implementation, the underframe includes an outer frame beam and several connecting longitudinal beams. The outer frame beam has a rear opening facing rearward. The connecting longitudinal beams are connected to the rear side of the outer frame beam and located within the rear opening. The rear ends of the outer frame beam and the connecting longitudinal beams are provided with rear end plates that are connected to the front end of the vehicle body.

[0014] Compared with the prior art, the lightweight driver's cab structure provided in this application embodiment has a frame structure formed by the underframe, ring beam and two anti-collision beams. Combined with the setting of multiple auxiliary beams, a stable driver's cab skeleton is formed. The driver's cab outer cover covers the outside of the driver's cab skeleton, and the two form a stable driver's cab structure. The above-mentioned driver's cab structure has the advantages of convenient installation and simple structure, meets the requirements of lightweight driver's cab design, is suitable for urban trains with different driver's cab shapes, has good versatility and wide applicability.

[0015] The present invention also provides a rail vehicle, which includes a lightweight driver's cab structure. This rail vehicle's driver's cab structure has the advantages of convenient installation and simple structure, meets the requirements of lightweight driver's cab design, is suitable for urban trains with different driver's cab shapes, has good versatility, and is widely applicable. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded structural diagram of the lightweight driver's cab structure provided in an embodiment of the present invention;

[0018] Figure 2 This is an embodiment of the present invention. Figure 1 Schematic diagram of the frame of the driver's cab;

[0019] Figure 3 This is an embodiment of the present invention. Figure 2 A partially enlarged structural diagram of section I;

[0020] Figure 4 This is an embodiment of the present invention. Figure 2 A structural diagram of the driver's cab frame from another angle;

[0021] Figure 5 This is an embodiment of the present invention. Figure 4 A partially enlarged structural diagram of section II;

[0022] Figure 6 This is an embodiment of the present invention. Figure 2 A partially enlarged structural diagram of the adjustable base and frame.

[0023] The following are the labeling elements in the figure:

[0024] 1. Driver's exterior cover; 2. Underframe; 21. Outer frame beam; 22. Connecting longitudinal beam; 23. Rear end plate; 3. Ring beam; 4. Anti-collision beam; 5. Auxiliary beam; 6. Upper support beam; 61. Column; 62. Connecting beam; 63. Connecting arc plate; 7. Adjustable component; 71. First connecting seat; 72. Second connecting seat; 73. Connecting corner seat; 74. Horizontal groove; 75. Connecting plate; 76. Longitudinal groove; 77. Reinforcing support plate; 8. Adjustable base; 81. Connecting upright plate; 82. Outer plate; 83. Vertical groove; 84. Horizontal groove; 9. Connecting component; 91. Slider; 92. Locking nut; 93. Threaded rod. Detailed Implementation

[0025] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0026] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, "a number" means two or more, unless otherwise explicitly specified.

[0027] Please refer to the following: Figures 1 to 6 The lightweight driver's cab structure and rail vehicle provided by the present invention will now be described. The lightweight driver's cab structure includes an outer cover 1 and a driver's cab frame. The driver's cab frame includes a base frame 2, a ring beam 3, two anti-collision beams 4, and several auxiliary beams 5. The ring beam 3 is connected above the base frame 2 and connected to the front end of the vehicle body. The two anti-collision beams 4 are respectively connected to the front side of the base frame 2, and the anti-collision beams 4 extend rearward and upward to connect with the ring beam 3. The auxiliary beams 5 connect between the two anti-collision beams 4 and between the anti-collision beams 4 and the ring beam 3.

[0028] Compared with the prior art, the lightweight driver's cab structure provided in this embodiment has a frame structure formed by the base frame 2, the ring beam 3, and two anti-collision beams 4. Combined with the setting of multiple auxiliary beams 5, a stable driver's cab skeleton is formed. The driver's cab outer cover 1 covers the outside of the driver's cab skeleton, and the two form a stable driver's cab structure. The above-mentioned driver's cab structure is simple, easy to install, meets the requirements of lightweight driver's cab design, is suitable for urban trains with different driver's cab shapes, has good versatility, and is widely applicable.

[0029] In this embodiment, two anti-collision beams 4 are respectively located near the left and right sides of the vehicle body, and a ring beam 3 is connected to the rear side of the anti-collision beams 4 and to the upper end of the anti-collision beams 4. The underframe 2, the ring beam 3, and the two anti-collision beams 4 form a frame structure. The auxiliary beam 5 is used to connect two adjacent anti-collision beams 4 or adjacent anti-collision beams 4 and the ring beam 3, so that the entire driver's cab frame has a stable structure, which helps to improve the structural support reliability and ensures effective support for the driver's cab outer cover 1.

[0030] Specifically, the auxiliary beam 5 is connected to the middle of the anti-collision beam 4 or the ring beam 3 in the height direction, and can form a connection with the driver's outer cover 1. The auxiliary beam 5 located between the two anti-collision beams 4 is set to protrude towards the front of the vehicle body, which facilitates the support and connection of the front of the driver's outer cover 1, ensuring the integrity and reliability of the structure.

[0031] Based on the above structure, the base frame 2 is made of alloy steel, while the ring beam 3, anti-collision beam 4, and auxiliary beam 5 are all made of carbon fiber. By using different materials for different components, the driver's cab frame structure is optimized to meet the strength and installation requirements of various working conditions, achieving good weight reduction while maintaining structural strength.

[0032] The base frame 2 is made of alloy steel and has good structural rigidity, providing a stable support foundation for the ring beam 3, anti-collision beam 4 and driver's outer canopy 1 above.

[0033] The ring beam 3, anti-collision beam 4, and auxiliary beam 5 located above the base frame 2 are all carbon fiber components. Carbon fiber is a new type of fiber material with a carbon content of over 95%, characterized by high strength and high modulus. Carbon fiber is lighter than aluminum but stronger than steel, and possesses corrosion resistance and high modulus. It exhibits high axial strength and modulus, low density, no creep, resistance to ultra-high temperatures in non-oxidizing environments, and good fatigue resistance, possessing many excellent properties.

[0034] Please refer to one possible implementation as well. Figures 1 to 6 An upper support beam 6 is also connected between the two anti-collision beams 4. The upper support beam 6 is connected to the upper part of the anti-collision beam 4. The upper support beam 6 protrudes upward from the ring beam 3 and is used to support the lower inner top of the driver's outer cover 1.

[0035] In this embodiment, an upper support beam 6 is connected between the two anti-collision beams 4. The upper support beam 6 and the ring beam 3 are spaced apart front and rear, which can achieve effective connection with the driver's outer cover 1 and form effective support for the top position of the driver's outer cover 1.

[0036] The upper support beam 6 can also reliably connect the upper parts of the two square impact beams, ensuring the stability of the relative position between the anti-collision beams 4, thereby ensuring the overall structural strength of the driver's cab frame. The upper support beam 6 protrudes upward from the ring beam 3, providing support for the inner top of the driver's cab outer cover 1. It can be connected to the driver's cab outer cover 1 with the help of other components, ensuring a reliable connection between the driver's cab outer cover 1 and the driver's cab frame, and ensuring the reliability of the connection.

[0037] In some embodiments, please refer to the following: Figures 1 to 6The upper support beam 6 includes two columns 61 and a connecting beam 62 connecting the upper ends of the two columns 61. The two columns 61 are connected to the upper parts of the two anti-collision beams 4 in a one-to-one correspondence. The lower end of the column 61 is provided with a connecting arc plate 63 connected to the front side wall of the anti-collision beam 4. The connecting beam 62 is connected to the inner wall of the driver's outer cover 1.

[0038] In this embodiment, the upper support beam 6 is formed by combining two columns 61 and a connecting beam 62. The two columns 61 reliably support the connecting beam 62, so that the connecting beam 62 provides support for the driver's outer cover 1. Furthermore, the connecting beam 62 can be connected to the inner wall of the driver's outer cover 1.

[0039] Based on this, the connecting arc plate 63 at the lower end of the column 61 forms contact with the front wall of the anti-collision beam 4, which facilitates increasing the contact area between the two. The connecting arc plate 63 can be connected to the anti-collision beam 4 by welding or by connecting parts, ultimately forming a connection between the upper support beam 6 and the two anti-collision beams 4.

[0040] Please refer to one possible implementation as well. Figures 1 to 6 The base frame 2 and the auxiliary beam 5 are both connected to the driver's outer cover 1 through the adjustable component 7. The adjustable component 7 includes a first connecting seat 71, a second connecting seat 72 and a connecting corner seat 73. The first connecting seat 71 is connected to the inner wall of the driver's outer cover 1, the second connecting seat 72 is connected to the auxiliary beam 5 or the base frame 2, and the connecting corner seat 73 is connected to the first connecting seat 71 and the second connecting seat 72 through a connector.

[0041] In this embodiment, the base frame 2 and the auxiliary beam 5 are respectively connected to the driver's outer cover 1 via adjustable components 7. The adjustable components 7 can be used to meet different installation requirements in terms of size and angle. Both the first connecting seat 71 and the second connecting seat 72 can be connected via connecting angle seats 73. The first connecting seat 71 and the second connecting seat 72 are pre-installed at corresponding positions on the driver's outer cover 1 and the driver's cab frame, respectively. Then, the connecting angle seats 73 are connected to the first connecting seat 71 and the second connecting seat 72 one by one using bolts or screws. Depending on the installation position and angle, the structure of the connecting angle seats 73 can be appropriately adjusted to meet different installation requirements.

[0042] Please refer to one possible implementation as well. Figures 1 to 6 The connecting corner bracket 73 includes two connecting plates 75 arranged at an included angle;

[0043] The connecting plate 75 is provided with a longitudinal groove 76 arranged in the vertical direction, and the first connecting seat 71 and the second connecting seat 72 are provided with a horizontal groove 74 extending in the horizontal direction; or the connecting plate 75 is provided with a horizontal groove 74 arranged in the horizontal direction, and the first connecting seat 71 and the second connecting seat 72 are provided with a vertical groove 83 extending in the vertical direction; the connecting member is provided through the horizontal groove 74 and the vertical groove 83.

[0044] In this embodiment, the longitudinal groove 76 and the horizontal groove 74 on the adjustable connecting component 9 can be set in different ways depending on the installation position. When the adjustable component 7 is set in the vertical part of the anti-collision beam 4 or the ring beam 3, the connecting plate 75 is provided with a horizontal groove 74 arranged in the horizontal direction, and the first connecting seat 71 and the second connecting seat 72 are provided with a vertical groove 83 extending in the vertical direction.

[0045] When the adjustable component 7 is set at the horizontal position of the auxiliary beam 5 or the ring beam 3, the connecting plate 75 is provided with a longitudinal groove 76 arranged in the vertical direction, and the first connecting seat 71 and the second connecting seat 72 are provided with a horizontal groove 74 extending in the horizontal direction.

[0046] By adjusting the position of the connectors within the longitudinal groove 76 and the horizontal groove 74, the horizontal or vertical position between the driver's cab outer cover 1 and the driver's cab frame can be effectively adjusted, ensuring ease of assembly.

[0047] In some embodiments, please refer to the following: Figures 1 to 6 The connecting corner bracket 73 also includes a reinforcing support plate 77 connected between the two connecting plates 75. The surface of the reinforcing support plate 77 is respectively perpendicular to the two connecting plates 75, and the reinforcing support plate 77 is located near the same edge of the two connecting plates 75.

[0048] In this embodiment, when the connecting corner bracket 73 needs to connect the first connecting bracket 71 and the second connecting bracket 72, which are relatively far apart, a reinforcing support plate 77 can be provided between the two connecting plates 75 to achieve structural reinforcement. The reinforcing support plate 77 is set at right angles to the first connecting plate 75 and the second connecting plate 75, respectively, so that the three can form a stable and reliable whole, satisfying the reliability of the connection.

[0049] Meanwhile, in order to meet the connection requirements of different locations in space, the two connecting plates 75 can be at an obtuse angle, and the reinforcing support plate 77 is set on one side of the obtuse angle formed by the two connecting plates 75, which further improves the structural strength of the connecting corner seat 73.

[0050] Please refer to one possible implementation as well. Figures 1 to 6The lower end of the anti-collision beam 4 is connected to the base frame 2 via the adjusting base 8. The adjusting base 8 includes a connecting plate 81 and an outer plate 82. The connecting plate 81 is provided with a vertical groove 83 extending in the vertical direction. The outer plate 82 is used to surround the anti-collision beam 4 and the connecting plate 81. The outer plate 82 is provided with a horizontally extending transverse groove 84. The connecting plate 81 and the outer plate 82 are connected by a connecting component 9 that passes through the transverse groove 84 and the vertical groove 83.

[0051] In this embodiment, the lower end of the anti-collision beam 4 is connected to the base frame 2 via an adjusting base 8. The lower end of the anti-collision beam 4 extends vertically, and its lower part can be connected to the base frame 2 via the adjusting base 8. The connecting upright plate 81 is connected to the base frame 2 and extends upward. The outer periphery plate 82 is connected to the outer periphery of the anti-collision beam 4 and has a through cavity that can accommodate both the anti-collision beam 4 and the connecting upright plate 81.

[0052] Based on this, a vertical groove 83 is provided on the connecting plate 81, and a horizontal groove 84 is provided on the corresponding side wall of the outer plate 82. The connecting component 9 is set through the horizontal groove 84 and the vertical groove 83, which facilitates the adjustment of the relative position between the anti-collision beam 4 and the base frame 2 and improves the convenience of assembly.

[0053] In some embodiments, please refer to the following: Figures 1 to 6 The connecting component 9 includes a slider 91, a threaded rod 93, and a locking nut 92. The slider 91 is slidably connected in the vertical groove 83. The threaded rod 93 is connected to the slider 91 in the horizontal direction and extends to the outside of the vertical groove 83. The locking nut 92 is threadedly connected to the threaded rod 93.

[0054] In this embodiment, the connecting component 9 adopts a combination of a slider 91 and a locking nut 92. The horizontal projection of the vertical groove 83 is C-shaped, and the slider 91 is slidably connected within the vertical groove 83. The threaded rod 93 provided on the slider 91 can be effectively locked with the locking nut 92, ensuring good connection reliability. The above structure is simple and convenient to connect.

[0055] Please refer to one possible implementation as well. Figures 1 to 6 The chassis 2 includes an outer frame beam 21 and several connecting longitudinal beams 22. The outer frame beam 21 has a rear opening facing backward. The connecting longitudinal beams 22 are connected to the rear side of the outer frame beam 21 and are located inside the rear opening. The rear ends of the outer frame beam 21 and the connecting longitudinal beams 22 are provided with a rear end plate 23 connected to the front end of the vehicle body.

[0056] In this embodiment, the chassis 2 adopts a combination of a front crossbeam and a connecting longitudinal beam 22. The outer frame beam 21 has a rear opening, forming a semi-ring structure surrounding the connecting longitudinal beam 22, ensuring the integrity of the outer frame beam 21. The rear end plate 23 of the connecting longitudinal beam 22 is used to connect with the front end face of the vehicle body, ensuring a reliable connection between the entire chassis 2 and the vehicle body.

[0057] Based on this, the driver's cab frame is also connected to the front face of the vehicle body through the ring beam 3, ensuring the reliability of the connection between the entire driver's cab frame and the vehicle body.

[0058] By conducting stress analysis on the driver's cab frame under various working conditions and combining it with the installation requirements of each system, the above-mentioned structure was selected to achieve lightweight design, effectively optimize the structure, meet the requirements for lightweight structure, and achieve the goal of integrated vehicle assembly. It can be applied to urban trains with different driver's cab shapes, has good versatility, and is widely applicable.

[0059] Based on the same inventive concept, this application also provides a rail vehicle, which includes a lightweight driver's cab structure. In the above-mentioned rail vehicle, the underframe 2, the ring beam 3, and two anti-collision beams 4 form a frame structure. Combined with the setting of multiple auxiliary beams 5, a stable driver's cab frame is formed. The driver's cab outer cover 1 covers the outside of the driver's cab frame, and the two form a stable driver's cab structure. The above-mentioned driver's cab structure has the advantages of simple structure and convenient installation, meets the requirements of lightweight driver's cab design, is suitable for urban trains with different driver's cab shapes, has good versatility, and is widely applicable.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A lightweight driver's cab structure, characterized in that, The vehicle includes a driver's cab cover (1) and a driver's cab frame. The driver's cab frame includes a base frame (2), a ring beam (3), two anti-collision beams (4), and several auxiliary beams (5). The ring beam (3) is connected above the base frame (2) and to the front of the vehicle body. The two anti-collision beams (4) are respectively connected to the front side of the base frame (2) and extend backward and upward to connect with the ring beam (3). The auxiliary beams (5) are connected between the two anti-collision beams (4) and between the anti-collision beams (4) and the ring beam (3). The base frame (2) and the auxiliary beam (5) are both connected to the driver's outer cover (1) through an adjustable component (7). The adjustable component (7) includes a first connecting seat (71), a second connecting seat (72), and a connecting corner seat (73). The first connecting seat (71) is connected to the inner wall of the driver's outer cover (1), and the second connecting seat (72) is connected to the auxiliary beam (5) or the base frame (2). The connecting corner seat (73) is connected to the first connecting seat (71) and the second connecting seat (72) through a connector. The first connecting seat (71) and the second connecting seat (72) can both be connected through the connecting corner seat (73). The first connecting seat (71) and the second connecting seat (72) are respectively pre-installed at corresponding positions on the driver's outer cover (1) and the driver's cab frame. The connecting corner seat (73) is connected to the first connecting seat (71) and the second connecting seat (72) one by one with bolts or screws. The structure of the connecting corner seat (73) is adjusted according to the different installation positions and angles to meet different installation requirements. The lower end of the anti-collision beam (4) is connected to the base frame (2) via an adjusting base (8). The adjusting base (8) includes a connecting upright plate (81) and an outer peripheral plate (82). The connecting upright plate (81) is provided with a vertical groove (83) extending in the vertical direction. The outer peripheral plate (82) is used to surround the anti-collision beam (4) and the connecting upright plate (81). The outer peripheral plate (82) is provided with a horizontally extending transverse groove (84). The connecting upright plate (81) and the outer peripheral plate (82) are connected to the base frame (2) via an adjusting base (8). The plate (82) is connected by a connecting assembly (9) that passes through the transverse groove (84) and the vertical groove (83); the connecting assembly (9) includes a slider (91), a threaded rod (93) and a locking nut (92), the slider (91) is slidably connected in the vertical groove (83), the threaded rod (93) is connected to the slider (91) in the horizontal direction and extends to the outside of the vertical groove (83), and the locking nut (92) is threadedly connected to the threaded rod (93).

2. The lightweight driver's cab structure as described in claim 1, characterized in that, An upper support beam (6) is also connected between the two anti-collision beams (4). The upper support beam (6) is connected to the upper part of the anti-collision beam (4). The upper support beam (6) protrudes upward from the ring beam (3) and is used to support the driver's outer cover (1) below the inner top.

3. The lightweight driver's cab structure as described in claim 2, characterized in that, The upper support beam (6) includes two columns (61) and a connecting beam (62) connecting the upper ends of the two columns (61). The two columns (61) are connected to the upper parts of the two anti-collision beams (4) respectively. The lower end of the column (61) is provided with a connecting arc plate (63) connected to the front side wall of the anti-collision beam (4). The connecting beam (62) is connected to the inner wall of the driver's outer cover (1).

4. The lightweight driver's cab structure as described in claim 1, characterized in that, The connecting angle bracket (73) includes two connecting plates (75) arranged at an included angle; The connecting plate (75) is provided with a longitudinal groove (76) arranged in the vertical direction, and the first connecting seat (71) and the second connecting seat (72) are provided with a horizontal groove (74) extending in the horizontal direction, or the connecting plate (75) is provided with a horizontal groove (74) arranged in the horizontal direction, and the first connecting seat (71) and the second connecting seat (72) are provided with a vertical groove (83) extending in the vertical direction; the connecting member is provided through the horizontal groove (74) and the vertical groove (83).

5. The lightweight driver's cab structure as described in claim 4, characterized in that, The connecting corner bracket (73) also includes a reinforcing support plate (77) connecting the two connecting plates (75). The plate surface of the reinforcing support plate (77) is respectively perpendicular to the two connecting plates (75), and the reinforcing support plate (77) is located near the same edge of the two connecting plates (75).

6. The lightweight driver's cab structure as described in any one of claims 1-5, characterized in that, The underframe (2) includes an outer frame beam (21) and a plurality of connecting longitudinal beams (22). The outer frame beam (21) has a rear opening facing backward. The connecting longitudinal beams (22) are connected to the rear side of the outer frame beam (21) and located in the rear opening. The rear ends of the outer frame beam (21) and the connecting longitudinal beams (22) are provided with a rear end plate (23) connected to the front end of the vehicle body.

7. A rail vehicle, characterized in that, The lightweight driver's cab structure includes any one of claims 1-6.

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