Cab structure and rail vehicle

Abstract

The application discloses a driver's cabin structure and a rail vehicle, and relates to the technical field of vehicle engineering. The driver's cabin structure comprises a driver's cabin head cover, an internal beam column component and a rear end bent beam component; the rear end bent beam component is fixed to the rear side of the driver's cabin head cover; the internal beam column component comprises two support beam components arranged in a split mode; the two support beam components are arranged side by side in the driver's cabin head cover and are respectively fixed to two opposite side walls of the driver's cabin head cover; and the rear end of the support beam component is fixed to the rear end bent beam component. In the driver's cabin structure, the internal beam column component comprises two support beam components arranged in a split mode; the spacing and positional relationship of the two support beam components are more flexible in assembly; the driver's cabin head cover can be adapted to more models; the driver's cabin structure has better universality; and the two support beam components can be assembled respectively in assembly, so that the operation is more flexible and the assembly difficulty can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle engineering, and in particular to a driver's cab structure and a rail vehicle. Background Art

[0002] The cab structure design typically involves designing a cab hood, an integral internal beam-column structure, and a rear curved beam. After the integral internal beam-column structure and the rear curved beam are welded together, the cab hood is installed. However, the integral internal beam-column structure is difficult and inefficient to install, and is not universally applicable to different cab shapes.

[0003] Therefore, how to make the internal beam-column structure easier to install and improve its versatility is a technical problem that those skilled in the art currently need to solve. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide a driver's cab structure and a rail vehicle including the driver's cab structure, wherein the internal beam-column structure is easier to install and has better versatility.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A driver's cab structure includes a driver's cab hood, an internal beam-column component and a rear-end curved beam component; the rear-end curved beam component is fixed to the rear side of the driver's cab hood, the internal beam-column component includes two split-type support beam components, the two support beam components are arranged side by side in the driver's cab hood and are respectively fixed to two opposite side walls of the driver's cab hood, and the rear end of the support beam component is fixed to the rear-end curved beam component.

[0007] Preferably, the support beam composition also includes a first support beam and a connecting beam group; the first support beam includes a top beam and a column fixed below the middle part of the top beam to form a T-beam, the top beam is fixed to the driver's cab head cover, the bottom end of the column is fixed to the connecting beam group, and the connecting beam group is fixedly connected to the rear end curved beam composition.

[0008] Preferably, the connecting beam group includes a second support beam, a third support beam arranged below the second support beam, and a fourth support beam fixed between the second support beam and the third support beam, and the rear end of the second support beam and the rear end of the third support beam are both fixed to the rear end curved beam; the first support beam and the fourth support beam are respectively fixed on the upper and lower sides of the same position on the second support beam.

[0009] Preferably, the support beam assembly includes a second support beam, which extends gradually upward from front to rear, the upper end of the second support beam is fixed to the rear end curved beam assembly, and the lower end is used to connect to the vehicle body chassis.

[0010] Preferably, the support beam composition also includes a third support beam arranged below the second support beam, and the third support beam extends gradually upward from front to rear. The upper end of the third support beam is fixed to the rear end curved beam composition, and the lower end is used to connect to the vehicle body frame.

[0011] Preferably, the support beam composition further includes a fifth support beam fixed between the second support beam and the third support beam, and the angle between the fifth support beam and the second support beam ranges from 88° to 92°.

[0012] Preferably, at least some of the components of the support beam are welded together, and / or at least some of the components of the rear end curved beam are welded together.

[0013] Preferably, at least two of the cab head cover, the internal beam column component, and the rear end curved beam component are connected by bolts.

[0014] Preferably, it also includes a connecting plate, a first T-bolt and a second T-bolt; a key-shaped hole is provided on the rear end curved beam component and is slidably connected to the first T-bolt, a connecting seat with a slide groove is fixedly provided on the driver's cab head cover, and the slide groove is slidably connected to the second T-bolt, and after adjusting the position of the first T-bolt on the key-shaped hole and the position of the second T-bolt on the slide groove, the first T-bolt and the second T-bolt can be fixed to the same connecting plate.

[0015] A rail vehicle comprises the above driver's cab structure.

[0016] The driver's cab structure provided by the present invention includes a driver's cab hood, an internal beam-column composition and a rear-end curved beam composition; the rear-end curved beam composition is fixed to the rear side of the driver's cab hood, and the internal beam-column composition includes two split-type support beam compositions, the two support beam compositions are arranged side by side in the driver's cab hood and are respectively fixed to the two opposite side walls of the driver's cab hood, and the rear end of the support beam composition is fixed to the rear-end curved beam composition.

[0017] In this driver's cab structure, the internal beam-column composition includes two split-type support beam compositions. The spacing and position relationship between the two beams are more flexible in assembly, and can be adapted to more models of driver's cab hoods. It has good versatility. During assembly, the two support beam compositions can be assembled separately, which makes the operation more flexible and reduces the difficulty of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0019] Figure 1 This is a structural diagram of a specific embodiment 1 of the driver's cab structure provided by the present invention;

[0020] Figure 2 for Figure 1 The main view;

[0021] Figure 3 for Figure 2 AA sectional view;

[0022] Figure 4 This is a schematic structural diagram of the rear end curved beam of the first specific embodiment of the cab structure provided by the present invention;

[0023] Figure 5 This is a front view of the internal beam and column components of the first specific embodiment of the driver's cab structure provided by the present invention;

[0024] Figure 6 for Figure 5 AA sectional view, AA is the longitudinal centerline position of the vehicle body;

[0025] Figure 7 A top view of the internal beam and column structure of a specific embodiment 1 of the driver's cab structure provided by the present invention;

[0026] Figure 8 This is a first-perspective structural diagram of the internal beams and columns of the driver's cab structure according to the first embodiment of the present invention;

[0027] Figure 9 A second perspective structural diagram of the internal beams and columns of the driver's cab structure according to the first embodiment of the present invention;

[0028] Figure 10 This is a structural diagram of the first support beam of the specific embodiment 1 of the driver's cab structure provided by the present invention;

[0029] Figure 11 This is a structural diagram of the connecting area of ​​the chute and key-shaped hole of the first embodiment of the cab structure provided by the present invention;

[0030] Figure 12 for Figure 11 The enlarged view of the chute at I, B is the weld;

[0031] Figure 13 for Figure 11 An enlarged view of the key-shaped hole at position II;

[0032] Figure 14 This is a cross-sectional view of the connection area between the slide groove and the key-shaped hole of the first specific embodiment of the driver's cab structure provided by the present invention.

[0033] Reference numerals:

[0034] Driver's cab head cover 1, front window connecting frame 11, connecting seat 12, slide 121;

[0035] Internal beam-column assembly 2, support beam assembly 21, first support beam 211, top beam 2111, column 2112, second support beam 212, third support beam 213, fourth support beam 214, fifth support beam 215, front mounting seat 216, bottom mounting seat 217, upper mounting seat 219, reinforcement plate 2110;

[0036] The rear end curved beam comprises 3, a rear mounting seat 31, an upper curved beam 32, a rear column 33, a key-shaped hole 34, a large diameter portion 341, and a small diameter portion 342;

[0037] Connecting plate 35 , first connecting hole 351 , second connecting hole 352 , first T-bolt 353 , second T-bolt 354 , nut 355 , washer 356 , and adjusting pad 357 . DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] The core of the present invention is to provide a driver's cab structure and a rail vehicle including the driver's cab structure, the internal beam and column structure of which is easier to install and has good versatility.

[0040] For the specific embodiment of the driver's cab structure provided by the present invention, please refer to Figures 1 to 14 , including a cab head cover 1, an internal beam column component 2 and a rear end curved beam component 3. The rear end curved beam component 3 and the internal beam column component 2 are fixed to the rear side of the cab head cover 1, and the cab head cover 1 is located outside the internal beam column component 2.

[0041] like Figure 1 As shown, the cab hood 1 includes a U-shaped frame opening toward the rear, which can ensure the accuracy of the external three-dimensional curved surface. The cab hood 1 is composed of a fiberglass outer cover and internal foam reinforcement ribs.

[0042] like Figure 3 and Figure 5 As shown, the internal beam assembly 2 includes two separate support beam assemblies 21. That is, the two support beam assemblies 21 are independent structures that are not directly connected together and can be assembled separately. The two support beam assemblies 21 are arranged side by side in the driver's cab hood 1. The two support beam assemblies 21 are respectively fixed to two opposite side walls of the driver's cab hood 1, and the rear end of each support beam assembly 21 is fixed to the rear end curved beam assembly 3.

[0043] In the driver's cab structure, the internal beam-column component 2 includes two split support beam components 21. The spacing and position relationship between the two are more flexible in assembly, and can be adapted to more models of driver's cab hoods 1. It has good versatility, and during assembly, the two support beam components 21 can be assembled separately, which makes the operation more flexible and reduces the difficulty of assembly.

[0044] Further, if Figures 3 to 9 As shown, the support beam assembly 21 includes a first support beam 211 and a connecting beam assembly fixed to the first support beam 211. The first support beam 211 is fixedly connected to the cab hood 1, and the connecting beam assembly is fixedly connected to the rear end curved beam assembly 3. Optionally, the connecting beam assembly can also be fixedly connected to the cab hood 1 at the same time.

[0045] like Figure 3 、 Figure 6 and Figure 10 As shown, the first support beam 211 includes a top beam 2111 and a column 2112 fixed to the lower middle portion of the top beam 2111, so that the first support beam 211 as a whole constitutes a T-beam. The top beam 2111 is fixed to the cab hood 1, specifically by bolt connection. The bottom end of the column 2112 is fixed to the connecting beam group, specifically by welding. Since the top beam 2111 has a certain extension length in the horizontal direction, more connection points that can be used for connection with the cab hood 1 can be provided, and specifically, the top beam 2111 can be set at a position where the cab bears a greater load.

[0046] Among them, preferably, Figure 3 and Figure 6 As shown, top beam 2111 is a V-shaped curved beam, with its two free ends positioned higher than the center, where it is fixedly connected to columns 2112. The two free ends of this V-shaped curved beam can be fixedly connected to the cab hood 1, thereby increasing the connection span with the cab hood 1 and improving stability. Furthermore, top beam 2111 has oblong holes through which it is bolted to columns 2112, allowing the relative position of columns 2112 to be adjusted in the front, back, left, and right directions relative to top beam 2111. In other embodiments, top beam 2111 can also be flat, wavy, or other shapes.

[0047] Among them, such as Figure 6As shown, the connecting beam group includes a second support beam 212, a third support beam 213, a fourth support beam 214 and a fifth support beam 215 that are connected to each other as a whole.

[0048] like Figure 3 and Figure 6 As shown, the second support beam 212 extends gradually upward from front to rear. The upper end of the second support beam 212 is fixed to the rear end curved beam assembly 3. Specifically, the upper end of the second support beam 212 is bolted to the rear mounting seat 31 fixed to the rear end curved beam assembly 3 via a front mounting seat 216 fixed thereon. The lower end of the second support beam 212 is used to connect to the vehicle body underframe, specifically, it can be bolted to the vehicle body underframe via a bottom mounting seat 217.

[0049] Because the underframe ends of the vehicle body (i.e., from the curved beam at the rear end of the driver's cab to the front end of the train head) are cantilevered, the underframe ends can "droop" during operation. In this embodiment, the tilted arrangement and structural arrangement of the second support beam 212 can apply an oblique upward pulling force to the underframe ends to offset the force generated by the cantilever structure and prevent the "droop" phenomenon.

[0050] like Figure 3 and Figure 6 As shown, the third support beam 213 is disposed below the second support beam 212. The third support beam 213 extends gradually upward from front to rear, and may be substantially parallel to the second support beam 212. The upper end of the third support beam 213 is fixed to the rear end curved beam assembly 3. Specifically, the upper end of the third support beam 213 is bolted to the rear end curved beam assembly 3 via a front mounting seat 216 fixed thereon. The lower end of the third support beam 213 is used to connect to the vehicle underframe, specifically, via a bottom mounting seat 217. The height of the bottom ends of the second support beam 212 and the third support beam 213 can be adjusted to suit the shape of the vehicle underframe.

[0051] Through the cooperation of the second support beam 212 and the third support beam 213, the connection strength of the support beam assembly 21 between the rear end curved beam assembly 3 and the vehicle body chassis can be improved. In other embodiments, as needed, a larger number of support beams can be provided with their two ends respectively connecting the rear end curved beam assembly 3 and the vehicle body chassis.

[0052] like Figure 6As shown, the fourth support beam 214 is fixed between the second support beam 212 and the third support beam 213. The first support beam 211 and the fourth support beam 214 are respectively fixed to the upper and lower sides of the same position on the second support beam 212. Because the fourth support beam 214 is connected to the second support beam 212 at a location directly below the location where the first support beam 211 is connected to the second support beam 212, the fourth support beam 214 can bear the longitudinal load from the first support beam 211 and then distribute the load to the vehicle bottom and the rear end curved beam assembly 3 through the third support beam 213, thereby improving the load-bearing capacity of the support beam assembly 21.

[0053] like Figure 6 As shown, the fifth support beam 215 is fixed between the second support beam 212 and the third support beam 213. The angle between the fifth support beam 215 and the second support beam 212 ranges from 88° to 92°, specifically, an angle between the fifth support beam 215 and the second support beam 212 is between 88° and 92°, preferably vertical.

[0054] The driver's cab hood 1 includes a front window connecting frame 11 for securely connecting the front window glass of the driver's cab. The second support beam 212 can be located behind the front window connecting frame 11. The fifth support beam 215 can be located at the rear and lower portion of the front window connecting frame 11. It primarily bears the longitudinal load from the front window glass of the driver's cab, transferring the force applied by the glass to the hood to the support beam assembly 21, further improving the load-bearing capacity of the entire driver's cab.

[0055] Furthermore, at least some of the components in the support beam assembly 21 are welded to ensure structural strength. Specifically, all components can be welded, such as Figure 6 As shown, the first support beam 211, the second support beam 212, the third support beam 213, the fourth support beam 214 and the fifth support beam 215 are fixedly connected as a whole by welding.

[0056] Of course, in other embodiments, the support beam composition 21 may also include only part of the support beams in this embodiment, for example, only the second support beam 212 and the first support beam 211; or, the support beam composition 21 may include a plurality of horizontally arranged sixth support beams connected as one and a plurality of vertically arranged seventh support beams.

[0057] Further, if Figure 4 As shown, the rear end curved beam assembly 3 includes an upper curved beam 32 and two rear uprights 33 fixed below the ends of the upper curved beam 32 to form an inverted U-shaped structure. At least some of the components of the rear end curved beam assembly 3 are welded together. Preferably, all components of the rear end curved beam assembly 3 are welded together to ensure structural strength.

[0058] Furthermore, at least two of the cab head cover 1, the internal beam column assembly 2, and the rear end curved beam assembly 3 are connected by bolts. Preferably, the cab head cover 1 and the internal beam column assembly 2, the cab head cover 1 and the rear end curved beam assembly 3, and the internal beam column assembly 2 and the rear end curved beam assembly 3 can be connected by bolts. The application of bolt connection can reduce the deformation caused by the welding connection between the main structures. Specifically, during the assembly process, the components in the support beam assembly 21 are first welded and connected, and then connected to the cab head cover 1 with adjustable and detachable bolts, and finally the support beam assembly 21 is bolted to the rear end curved beam assembly 3.

[0059] The bolt connection between the cab head cover 1 and the rear end curved beam assembly 3 can be achieved through the connecting plate 35 , the first T-bolt 353 and the second T-bolt 354 .

[0060] like Figures 11 to 14 As shown, the rear end curved beam assembly 3 is provided with a key-shaped hole 34 that is slidably connected to the first T-bolt 353. The cab hood 1 is fixedly provided with a connecting base 12 having a slide slot 121 that is slidably connected to the second T-bolt 354. After adjusting the position of the first T-bolt 353 on the key-shaped hole 34 and the position of the second T-bolt 354 on the slide slot 121, the first T-bolt 353 and the second T-bolt 354 can be fixed to the same connecting plate 35.

[0061] Among them, such as Figure 13 and Figure 14 As shown, the keyhole 34 has one end with a larger dimension perpendicular to its extension than the rest of the hole. The larger portion is the large diameter portion 341, while the rest of the hole is the small diameter portion 342. The keyhole 34 extends in the vertical direction, with the top end having a larger horizontal dimension than the rest of the hole. The head of the first T-bolt 353 enters the rear end curved beam assembly 3 through the large diameter portion 341 of the keyhole 34 and is restrained at the small diameter portion 342 of the keyhole 34 to prevent it from coming out. The shaft of the first T-bolt 353 extends out of the keyhole 34 to connect to the connecting plate 35.

[0062] Among them, such as Figure 12 and Figure 14 As shown, the slide groove 121 can extend in the up-down direction. The head of the second T-bolt 354 is located in the slide groove 121 and is constrained to prevent it from falling out, and the rod extends out of the slide groove 121 to connect with the connecting plate 35.

[0063] The connecting plate 35 is provided with a first connecting hole 351 and a second connecting hole 352. The first connecting hole 351 allows the rod of the first T-bolt 353 to pass through, and the second connecting hole 352 allows the rod of the second T-bolt 354 to pass through. The first connecting hole 351 and the second connecting hole 352 can both be bar-shaped holes, specifically oblong holes. Specifically, the first connecting hole 351 can extend perpendicularly to the direction of the key-shaped hole 34, and the second connecting hole 352 can extend perpendicularly to the direction of the slide slot 121, to further enhance the flexibility of adjusting the bolt connection position.

[0064] Since the connecting seat 12 needs to be added separately, welding connection is specifically adopted, and the key-shaped hole 34 can be directly processed on the rear end curved beam component 3. Compared with the double slide groove 121 implementation method in which the connecting seat 12 is provided on the driver's cab hood 1 and the rear end curved beam component 3, the key-shaped hole 34 is opened by utilizing the structural characteristics of the rear end curved beam component 3 itself, which can reduce the welding amount and welding deformation, and also reduce weight.

[0065] Regarding the bolt connection between the rear end curved beam assembly 3 and the support beam assembly 21, specifically, a front mounting seat 216 is fixedly provided on the support beam assembly 21, specifically, it can be welded, and a rear mounting seat 31 is fixedly provided on the rear end curved beam assembly 3, specifically, it can be welded. The front mounting seat 216 and the rear mounting seat 31 are fixed by bolts.

[0066] For the bolt connection between the internal beam-column component 2 and the cab hood 1 , an upper mounting seat 219 may be fixedly provided on a portion of the supporting beams of the internal beam-column component 2 to be bolted to the cab hood 1 .

[0067] The cab structure provided by the present invention uses a combination of various connection methods such as ordinary bolt connection, combination connection of slide grooves 121 and T-bolts, and welding between components. Among them, the cab hood 1, the internal beam column component 2, and the rear end curved beam component 3 are connected by adjustable and detachable bolts; the internal beam column component 2 and the rear end curved beam component 3 are connected by reliable welding. The internal beam column component 2 includes split left and right support beam components 21, which are respectively connected to the cab hood 1, with sufficient adjustment space. The internal beam column component 2 is designed in position and structure according to the load path of the cab in the current vehicle operation condition, thereby improving the load-bearing capacity of the cab skeleton.

[0068] The driver's cab structure can decompose the integral beam column into two independent left and right parts while ensuring the reliable strength of the skeleton. The structure is streamlined, and there is no skeleton at the front end of the driver's cab, which takes up less space and is not affected by the appearance. It can be adapted to various changes in the curved surface shape of the driver's cab, is easy to install and adjust, and reduces weight to achieve lightweight. The main structure is connected by bolts and can be disassembled and replaced. The main structures use a connecting plate 35 with an oblong hole, a slide groove 121 structure and 34 pieces with key-shaped holes, and are connected with T-bolts. They can be installed and adjusted in multiple directions. The beam column position and structure design can be carried out according to the path of the load borne by the driver's cab in the current vehicle operation conditions, thereby improving the bearing capacity of the driver's cab skeleton. It has the advantages of strong bearing capacity, lightweight, disassembly and adjustability.

[0069] In addition to the above-mentioned driver's cab structure, the present invention further provides a rail vehicle including a driver's cab structure. The driver's cab structure may be any of the above-mentioned embodiments. The beneficial effects thereof may be referred to in the above-mentioned embodiments. The structures of the other parts of the rail vehicle are referred to in the prior art and will not be described in detail herein.

[0070] It should be noted that when an element is referred to as being "fixed" to another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected" to another element, it may be directly connected to the other element or there may be an intermediate element. In addition, in the description of the present invention, unless otherwise specified, "plurality," "plurality," and "plurality of groups" mean two or more.

[0071] Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features referred to.

[0072] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0073] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0074] The above is a detailed introduction to the driver's cab structure and rail vehicle provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in several ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A driver's cab structure, characterized in that: It comprises a cab hood (1), an internal beam column component (2) and a rear end curved beam component (3); the rear end curved beam component (3) is fixed to the rear side of the cab hood (1); the internal beam column component (2) comprises two split support beam components (21); the two support beam components (21) are arranged in parallel in the cab hood (1) and are respectively fixed to two opposite side walls of the cab hood (1); the rear end of the support beam component (21) is fixed to the rear end curved beam component (3); The support beam assembly (21) comprises: a second support beam (212), which gradually extends upward from front to rear, its upper end is fixed to the rear end curved beam assembly (3), and its lower end is used to connect to the vehicle body chassis; a third support beam (213) provided below the second support beam (212), which gradually extends upward from front to rear, its upper end is fixed to the rear end curved beam assembly (3), and its lower end is used to connect to the vehicle body chassis; a fifth support beam (215) fixed between the second support beam (212) and the third support beam (213), wherein the angle between the fifth support beam (215) and the second support beam (212) is between 88° and 92°; a first support beam (211) and a connecting beam assembly, wherein the first support beam (211) comprises a top beam (2111) and a connecting beam assembly fixed to the top beam The column (2112) is located below the middle portion of the (2111) to form a T-beam, the top beam (2111) is fixed to the driver's cab hood (1), the bottom end of the column (2112) is fixed to the connecting beam group, the connecting beam group is fixedly connected to the rear end curved beam component (3), the connecting beam group includes the second support beam (212), the third support beam (213) and the fourth support beam (214) fixed between the second support beam (212) and the third support beam (213), the rear end of the second support beam (212) and the rear end of the third support beam (213) are both fixed to the rear end curved beam component (3), the first support beam (211) and the fourth support beam (214) are respectively fixed to the upper and lower sides of the same position on the second support beam (212).

2. The driver's cab structure according to claim 1, characterized in that: At least some of the components in the support beam component (21) are welded together, and / or at least some of the components in the rear end curved beam component (3) are welded together.

3. The driver's cab structure according to claim 1, characterized in that: At least two of the driver's cab head cover (1), the internal beam column component (2), and the rear end curved beam component (3) are connected by bolts.

4. The driver's cab structure according to claim 1, characterized in that: It also includes a connecting plate (35), a first T-shaped bolt (353) and a second T-shaped bolt (354); a key-shaped hole (34) slidably connected to the first T-shaped bolt (353) is provided on the rear end curved beam component (3); a connecting seat (12) having a slide groove (121) is fixedly provided on the driver's cab head cover (1), and the slide groove (121) is slidably connected to the second T-shaped bolt (354); after adjusting the position of the first T-shaped bolt (353) on the key-shaped hole (34) and the position of the second T-shaped bolt (354) on the slide groove (121), the first T-shaped bolt (353) and the second T-shaped bolt (354) can be fixed to the same connecting plate (35).

5. A rail vehicle, characterized in that: The driver's cab structure includes any one of claims 1 to 4.

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