CN217649440U

CN217649440U - Rail vehicle end wall and rail vehicle

Info

Publication number: CN217649440U
Application number: CN202221684041.3U
Authority: CN
Inventors: 郭鹏; 喻海洋; 田洪雷; 户迎灿; 蔡军爽
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-10-25
Anticipated expiration: 2032-06-30

Abstract

The utility model relates to a rail vehicle technical field provides a rail vehicle headwall and rail vehicle. The rail vehicle end wall comprises a bearing frame, an end wall plate, an outer ring through passage mounting seat and a reinforcing beam. Bearing frame has seted up the inner circle and has run through a fixed orifices, and the end wall board links to each other with bearing frame, is equipped with the through-hole with inner circle and runs through a connecting hole looks adaptation on the end wall board, and outer lane run through mount pad links to each other with the end wall board, and outer lane run through mount pad has seted up outer lane run through a fixed orifices, and the strengthening beam links to each other with bearing frame, and the strengthening beam links to each other with the end wall board, and the strengthening beam is with at least one side looks adaptation of outer lane run through mount pad. The inner ring through passage and the outer ring through passage can be reliably fixed, and the installation requirement of the double-layer through passage is met.

Description

Rail vehicle end wall and rail vehicle

Technical Field

The utility model relates to a rail vehicle technical field especially relates to a rail vehicle headwall and rail vehicle.

Background

With the improvement of the speed grade of the railway vehicle, structures such as the through passage, the outer windshield and the like are applied to the end wall more and more, and the requirements on the end wall are higher and higher. The installation requirement of a through passage after the speed grade of a vehicle is improved is difficult to meet by the existing end wall structure, and a novel railway vehicle end wall is urgently needed to solve the technical problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a rail vehicle headwall for solve among the prior art terminal wall structure and be difficult to satisfy the technical problem of the installation demand that link up after the promotion of vehicle speed class, realize linking up reliable, firm installation of way.

The utility model also provides a rail vehicle.

The utility model provides a rail vehicle headwall, include:

the bearing frame is provided with an inner ring through passage fixing hole;

the end wall plate is connected with the bearing frame and is provided with a through hole matched with the inner ring through passage fixing hole;

the outer ring through passage mounting seat is connected with the end wall plate and is provided with an outer ring through passage fixing hole;

the reinforcing beam is connected with the bearing frame, the reinforcing beam is connected with the end wall plate, and the reinforcing beam is matched with at least one side of the outer ring through passage mounting seat.

According to the utility model provides a rail vehicle headwall, bearing frame includes:

a pair of end corner posts;

the pair of door upright columns are arranged between the pair of end corner columns at intervals;

the door upper cross beam is arranged between the pair of end corner posts, and the pair of door stand posts are respectively inserted into the door upper cross beam;

the reinforcing beam is arranged on one side of the door upright column, which faces the end corner column, a small cross beam is connected between the reinforcing beam and the door upright column, and the inner ring through passage fixing holes are formed in the small cross beam and the door upper cross beam.

According to the utility model provides a pair of rail vehicle headwall, bearing frame still includes:

the two ends of the end top bent beam are respectively connected with the upper ends of the pair of end corner columns;

and at least one outer windshield mounting seat is arranged at the end top bent beam of the end wall plate.

According to the utility model provides a pair of rail vehicle headwall, outer windshield mount pad includes:

the base body at least comprises a connecting surface which is arranged opposite to the end wall plate;

the transition piece is suitable for being mounted on one side, facing the end wallboard, of the seat body through a fastener, and the transition piece and the connecting surface are respectively provided with a connecting hole;

the connecting piece wears to locate the connecting hole of transition piece with the connecting hole of connecting the face, just the connecting piece is in it keeps away from to connect the face one side of transition piece forms attach fitting.

According to the utility model provides a pair of rail vehicle headwall, the end top camber beam is connected with a pair of stand and end top crossbeam, end top camber beam, end top crossbeam and a pair of stand enclose to close and form the installing zone, be equipped with the ventilation unit mount pad in the installing zone.

According to the utility model provides a pair of rail vehicle headwall, the door entablature is logical long structure along automobile body width direction, the door entablature includes:

a T-piece;

the top connecting plate is arranged at the upper part of the horizontal section of the T-shaped piece;

the middle connecting plates are respectively arranged at the lower parts of the two sides of the horizontal section of the T-shaped piece;

the bottom connecting plate is arranged at the lower part of the vertical section of the T-shaped piece;

wherein, a gap is reserved between the middle connecting plate and the bottom connecting plate, and a plug interface is formed.

According to the utility model provides a pair of rail vehicle headwall, the end corner post with the door stand adopts the same section structure, at least one side of section structure is constructed the step face of indent.

According to the utility model provides a pair of rail vehicle headwall, the end angle post is kept away from the lower extreme of reinforcement roof beam one side is equipped with the throat inclined plane, follow under the throat inclined plane from last the end angle post to the direction slope of reinforcement roof beam.

According to the utility model provides a pair of rail vehicle headwall, the end corner post is for leading to long structure along the automobile body direction of height, the lower extreme of end corner post extends to the equipment cabin of automobile body.

The utility model also provides a rail vehicle, including multisection carriage, it is adjacent the tip in carriage is equipped with like aforementioned rail vehicle headwall respectively, and is adjacent connect through link up between the rail vehicle headwall.

The embodiment of the utility model provides a rail vehicle headwall through seting up the inner circle through a fixed orifices on bearing frame, sets up the through-hole rather than the looks adaptation simultaneously on the end wall board, makes in the inner circle through a through-hole and fixed orifices link to each other with end wall board and bearing frame, is connected to bearing frame and can makes the atress transmission of inner circle through a to bearing frame, ensures the reliable fixed of inner circle through a. The bearing frame is provided with the reinforcing beam, the reinforcing beam is matched with the end wall plate to be connected with the outer ring through passage mounting seat, and after the outer ring through passage mounting seat is connected with the outer ring through passage, the stress of the outer ring through passage can be transmitted to the bearing frame through the reinforcing beam so as to ensure the reliable fixation of the outer ring through passage.

The utility model also provides a rail vehicle, through install above-mentioned rail vehicle headwall on rail vehicle, can ensure that inner circle link up the reliable, firm installation of saying with the outer lane link up, satisfy the installation demand that the bilayer link up the way.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is one of the schematic structural views of the end wall of the rail vehicle provided by the present invention;

fig. 2 is a second schematic structural view of the end wall of the rail vehicle provided by the present invention;

FIG. 3 is a cross-sectional view of an outer windshield mount in a rail vehicle headwall provided by the present invention;

fig. 4 is an enlarged view of a portion of the vent mount in the rail vehicle headwall provided by the present invention;

fig. 5 is a schematic structural view of a door upper beam in the rail vehicle end wall provided by the present invention;

fig. 6 is a schematic sectional structure view of an end corner post and a door post in the railway vehicle end wall provided by the present invention;

fig. 7 is a schematic structural view of an end corner post in a railway vehicle end wall provided by the present invention.

Reference numerals:

1. an end corner post; 2. a door pillar; 3. a door upper beam; 4. reinforcing the beam; 5. a small cross beam; 6. the inner ring penetrates through the channel fixing hole; 7. an end wall panel; 8. an outer ring through passage mounting seat; 9. an outer ring penetrates through a passage fixing hole; 10. end top bending beam; 11. an outer windshield mounting base; 12. a base body; 13. a connection face; 14. a transition piece; 15. a connecting member; 16. a column; 17. an end top beam; 18. a ventilator mounting base; 19. a T-piece; 20. a top tie plate; 21. a middle connecting plate; 22. a bottom connecting plate; 23. an interface; 24. a cross-sectional structure; 25. a step surface; 26. a necking inclined plane; 27. and a through hole.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are provided to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present specification, references to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

The rail vehicle headwall of the present invention will be described with reference to fig. 1-7, which mainly comprises a bearing frame, an end wall plate 7, an outer ring through passage mounting seat 8 and a reinforcing beam 4. The bearing frame is provided with an inner ring through passage fixing hole 6, the end wall plate 7 is connected with the bearing frame, the end wall plate 7 is provided with a through hole 27 matched with the inner ring through passage connecting hole, the outer ring through passage mounting seat 8 is connected with the end wall plate 7, the outer ring through passage mounting seat 8 is provided with an outer ring through passage fixing hole 9, the reinforcing beam 4 is connected with the bearing frame, the reinforcing beam 4 is connected with the end wall plate 7, and the reinforcing beam 4 is matched with at least one side of the outer ring through passage mounting seat 8.

In this embodiment, the bearing frame is provided with the inner ring through passage fixing hole 6, and the end wall plate 7 is provided with the through hole adapted to the inner ring through passage fixing hole, so that the inner ring through passage is connected with the end wall plate 7 and the bearing frame through the through hole and the fixing hole, and the bearing frame is connected to the inner ring through passage fixing hole, so that the stress of the inner ring through passage is transmitted to the bearing frame, and the inner ring through passage is reliably fixed. The bearing frame is provided with the reinforcing beam 4, the reinforcing beam 4 is matched with the end wall plate 7 to be connected with the outer ring through passage mounting seat 8, and after the outer ring through passage mounting seat 8 is connected with the outer ring through passage, the stress of the outer ring through passage can be transmitted to the bearing frame through the reinforcing beam 4 so as to ensure the reliable fixation of the outer ring through passage.

Based on the inner ring through passages with different shapes, the positions of the inner ring through passage fixing holes 6 formed in the bearing frame can be different. Based on the outer ring through passage with different shapes, the shape of the outer ring through passage mounting seat 8 can be adjusted, and the position of the outer ring through passage fixing hole 9 and the width of the reinforcing beam 4 can also be adjusted adaptively. Therefore, the installation requirements of the inner ring through passage and the outer ring through passage of different types are met, and the installation requirements of the double-layer through passage are met.

As shown in fig. 2, the outer ring through passage mounting seat 8 is of a quadrilateral structure, and four corners of the quadrilateral structure are in arc transition. The number of the reinforcing beams 4 can be two, and the two reinforcing beams 4 are respectively connected with two opposite side edges of the outer ring through passage mounting seat 8.

In this embodiment, the bearing frame, the end wall plate 7, the outer ring through-passage mounting seat 8 and the reinforcing beam 4 are made of carbon steel. Of course, according to different types of railway vehicles and different driving areas, the bearing frame, the end wall plate 7, the outer ring through-passage mounting seat 8 and the reinforcing beam 4 made of other materials may be selected, which is not limited in this embodiment.

The cross section of the reinforcing beam 4 may be U-shaped, or may be other shapes according to different use requirements, and is not limited in this embodiment.

According to the utility model provides a rail vehicle headwall, load-bearing frame mainly includes a pair of end corner post 1, a pair of door stand 2 and door entablature 3. Wherein, a pair of door stand 2 interval sets up between a pair of end corner post 1, and door entablature 3 is installed between a pair of end corner post 1, and a pair of door stand 2 pegs graft respectively in door entablature 3. The reinforcing beam 4 is arranged on one side of the end corner post 1 facing the door upright post 2, a small cross beam 5 is connected between the reinforcing beam 4 and the door upright post 2, and the inner ring through passage fixing hole 6 is provided with the small cross beam 5 and the door upper cross beam 3.

As shown in fig. 1, the small beams 5 between the reinforcing beam 4 and the door pillar 2 are provided in plurality, and the small beams 5 are provided at intervals along the height direction of the door pillar 2, and a plurality of small pillars are further provided at intervals between the small beams 5 for further reinforcing the structure.

The inner ring through passage fixing holes 6 are formed in the small cross beam 5 and the door upper cross beam 3, and the small cross beam 5 and the door upper cross beam 3 are used as bearing structures of the inner ring through passage to reliably and firmly install the inner ring through passage.

The end corner post 1, the reinforcing beam 4, the door upright post 2, the door upper cross beam 3, the small cross beam 5 and the small upright post can be fixed by welding.

As shown in fig. 1 and 2, the bearing frame further includes an end top bending beam 10, and both ends of the end top bending beam 10 are respectively welded to the upper ends of a pair of end corner posts 1. Wherein, the end wall plate 7 is provided with at least one outer windshield mounting seat 11 at the end top camber beam 10. It can be understood that the end top bending beam 10 also serves as a bearing component, and the outer windshield installation seat 11 is fixed at the end top bending beam 10 on the end wall plate 7, so that stress can be transmitted to the end top bending beam 10, and reliable fixing of an outer windshield is ensured. Meanwhile, the end top camber beam 10 can be matched with the appearance of the railway vehicle and is consistent with the outer contour of the vehicle body.

The outer windshield mounts 11 are provided in plural, and the plural outer windshield mounts 11 are arranged in the bending direction of the end roof bow 10.

As shown in fig. 2, the end wall plate 7 may specifically include end wall side plates fixed between the end corner posts 1 and the door posts 2, and end wall top plates fixed between the door upper cross beam 3 and the end top bent beam 10. The aforementioned through-holes 27 are opened in the end wall side plates.

As shown in fig. 3, outer windshield mount pad 11 includes pedestal 12, transition piece 14 and connecting piece 15, pedestal 12 has at least and is connected face 13 with the relative setting of headwall 7, transition piece 14 is suitable for to install in one side of pedestal 12 towards headwall 7 through the fastener, transition piece 14 has seted up the connecting hole respectively with being connected face 13, connecting piece 15 wears to locate the connecting hole of transition piece 14 and the connecting hole of being connected face 13, and connecting piece 15 forms attach fitting in the one side of being connected face 13 and keeping away from transition piece 14.

In this embodiment, the seat body 12 may be L-shaped, T-shaped, or v-shaped 21274so that one or both ends of the seat body 12 can be welded to the end wall plate 7 and has a connecting surface 13 opposite to the end wall plate 7. Preferably, the connecting surface 13 may be parallel to the end wall plate 7.

Fastening holes can be further formed in the transition piece 14 and the connecting surface 13, when the transition piece 14 is connected with the connecting surface 13, the fastening holes of the transition piece 14 are aligned with the fastening holes of the connecting surface 13, and then the fastening holes of the transition piece 14 are penetrated through by fastening pieces to be arranged in the fastening holes of the connecting surface 13, so that the transition piece 14 and the connecting surface 13 are fixed mutually. The fastening element used can be a screw, the fastening hole of the transition piece 14 and the fastening hole of the connection surface 13 are both provided with internal threads, and the screw is suitable for being assembled on the fastening hole of the transition piece 14 and the fastening hole of the connection surface 13 from the outer side of the connection surface 13. Of course, fasteners of other structures may be used to connect the fastening holes of the transition piece 14 and the fastening holes of the connection surface 13, so long as the transition piece 14 and the connection surface 13 are stably connected.

The connecting piece 15 can adopt a bolt, the bolt penetrates through a connecting hole of the transition piece 14 and a connecting hole of the connecting surface 13 from the inner side of the connecting surface 13, a limiting end of the bolt is abutted against the transition piece 14, a thread section of the bolt penetrates out of the connecting surface 13 to form a connecting joint, and the connecting joint is used for connecting an outer windshield, so that the outer windshield can be directly installed conveniently.

The outer side of the connection surface 13 refers to a side of the connection surface 13 away from the transition piece 14, and the inner side of the connection surface 13 refers to a side of the connection surface 13 facing the transition piece 14.

As shown in fig. 1 and 4, the end-top curved beam 10 is connected with a pair of upright columns 16 and an end-top cross beam 17, the end-top curved beam 10, the end-top cross beam 17 and the pair of upright columns 16 enclose to form a mounting area, and a ventilator mounting seat 18 is arranged in the mounting area. The ventilator mount 18 may be used to attach a ventilator such that the present rail vehicle headwall provides a mounting interface for the ventilator.

The end wall plate 7 is provided with a ventilation opening at a position corresponding to the ventilation device mounting seat 18, so that normal ventilation is ensured. The lower end of the ventilator mounting seat 18 is fixed to the end top cross beam 17, the left and right ends are respectively fixed to the pair of upright posts 16, and the upper end is fixed to the end wall plate 7, so that the ventilator mounting seat 18 can be provided with sufficient supporting strength by adopting the fixing mode. In order to connect the ventilator mounting base 18 to the ventilator, the ventilator mounting base 18 may be threaded, or a screw base or other connecting means may be attached to connect the ventilator.

To ensure the strength of the end top bow 10, the end top bow 10 is further connected to the end top beam 17 and the door top beam 3 by a plurality of vertically arranged reinforcement beams.

As shown in fig. 1 and 5, the door upper cross member 3 is of a through-length structure in the vehicle width direction, and the door upper cross member 3 specifically includes a T-shaped member 19, a top link plate 20, a pair of middle link plates 21, and a bottom link plate 22. Wherein, the top connecting plate 20 is arranged at the upper part of the horizontal section of the T-shaped piece 19, the pair of middle connecting plates 21 are respectively arranged at the lower parts of the two sides of the horizontal section of the T-shaped piece 19, and the bottom connecting plate 22 is arranged at the lower part of the vertical section of the T-shaped piece 19. A gap is left between the middle connecting plate 21 and the bottom connecting plate 22, and a plug interface 23 is formed.

It can be understood that, a pair of door uprights 2 are respectively inserted into the two insertion ports 23, and after the insertion is completed, the door uprights 2 are fixedly connected with the top connecting plate 20, the middle connecting plate 21 and the bottom connecting plate 22 in a welding manner, so that the door uprights 2 are reliably fixed.

The top connecting plate 20, the pair of middle connecting plates 21 and the bottom connecting plate 22 can be connected with the T-shaped part 19 in a welding mode, and the top connecting plate 20, the pair of middle connecting plates 21 and the bottom connecting plate 22 can also be integrally bent at corresponding positions of the T-shaped part 19. Of course, the top link 20, the pair of middle links 21 and the bottom link 22 can be connected to the T-shaped member 19 by fastening with fasteners or the like, so as to ensure that the components are stably connected, and the present embodiment is not limited thereto.

According to the utility model provides a rail vehicle headwall, end corner post 1 and door stand 2 adopt the same section structure 24, and at least one side of section structure 24 is constructed with the step face 25 of indent. The end corner post 1 and the door post 2 with the same section structure 24 can reduce the manufacturing and processing cost. The step surface 25 formed by the section structure 24 can be used for connecting the end wall plate 7, the side wall and the like, and the width of the step surface 25 is matched with the end wall plate 7 and the side wall. Preferably, the width of the step surface 25 is the same as the thickness of the end wall plate 7 and the side wall.

Specifically, the step surface 25 of the cross-sectional structure 24 is located at the bending position of the cross-sectional structure 24, and as illustrated in fig. 6, the step surface 25 may be located at the position where the upper right side of the end-face structure is bent, or may be located at the position where the lower left side of the cross-sectional structure 24 is bent.

According to the utility model provides a rail vehicle headwall, the lower extreme that 4 one side of reinforcing beam was kept away from to end corner post 1 is equipped with throat inclined plane 26, as shown in fig. 7, this throat inclined plane 26 is from last to down along the slope of 1 direction of end corner post to reinforcing beam 4, and the design on throat inclined plane 26 can make the outline of end corner post 1 keep unanimous with the automobile body outline, adapts to the appearance structure of automobile body better.

The end corner post 1 is a through long structure along the height direction of the vehicle body, the lower end of the end corner post 1 extends to the equipment compartment of the vehicle body, and it can be understood that after the lower end of the end corner post 1 extends to the equipment compartment, the end corner post 1 can be used for connecting structures such as a roof side sill, a side wall, an underframe and an equipment compartment skirt board, and can be used as a bearing mechanism for more parts, and a good bearing effect is achieved.

The end corner post 1 with the through-length structure is matched with the necking inclined plane 26 at the lower end, the end corner post 1 adopts a variable cross section structure form, the requirement on the outline of a vehicle body can be met, the requirements on the interfaces of a side wall, a side wall and an equipment compartment apron board can also be met, and the requirement on the bearing performance is also met.

On the other hand, the utility model also provides a rail vehicle, including the multisection carriage. The end parts of the adjacent carriages are respectively provided with the rail vehicle end walls as in the previous embodiment, and the adjacent rail vehicle end walls are connected through the through passages. By installing the rail vehicle end wall on the rail vehicle, the inner ring through passage and the outer ring through passage can be reliably and firmly installed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A rail vehicle headwall, comprising:

the bearing frame is provided with an inner ring through passage fixing hole;

2. The rail vehicle headwall of claim 1, wherein the load frame includes:

a pair of end corner posts;

the door upper cross beam is arranged between the pair of end corner posts, and the pair of door stand columns are respectively inserted into the door upper cross beam;

3. The rail vehicle headwall of claim 2, wherein the load frame further comprises:

and the end wall plate is provided with at least one outer windshield mounting seat at the end top bent beam.

4. A rail vehicle headwall as in claim 3, wherein the outer windshield mount comprises:

5. The rail vehicle end wall of claim 3, wherein the end top camber beam is coupled to a pair of uprights and an end top cross beam, the end top camber beam, the end top cross beam, and the pair of uprights enclosing a mounting area, the mounting area having a ventilator mount.

6. The rail vehicle end wall of any one of claims 2-5, wherein the door header is of a through-length configuration in a width direction of the vehicle body, the door header comprising:

a T-piece;

7. The rail vehicle end wall of any one of claims 2-5, wherein the corner post and the door pillar are of the same cross-sectional configuration, at least one side of the cross-sectional configuration being configured with an inwardly concave step surface.

8. The railway vehicle end wall according to any one of claims 2 to 5, wherein the lower end of the end corner post on the side away from the reinforcing beam is provided with a necking down slope, and the necking down slope inclines from top to bottom along the end corner post towards the reinforcing beam.

9. A railway vehicle headwall as claimed in any one of claims 2 to 5, wherein the end corner posts are of through-length construction in the height direction of the vehicle body, the lower ends of the end corner posts extending to an equipment compartment of the vehicle body.

10. A rail vehicle comprising a plurality of carriages, wherein end portions of adjacent carriages are provided with rail vehicle end walls according to any one of claims 1 to 9, respectively, and wherein adjacent rail vehicle end walls are connected by a through passage.