CN108909764A - Anti-climbing energy-absorbing device and rail vehicle with it - Google Patents

Abstract

The invention provides an anti-climbing energy-absorbing device and a rail vehicle having the same, wherein the anti-climbing energy-absorbing device includes: anti-climbing teeth; a guide part, one end of the guide part is fixedly connected with the anti-climbing tooth; The energy part is sheathed on the guide part and is movably arranged relative to the guide part, and the energy absorbing part can be compressed when the anti-climbing tooth is hit. Through the technical solution provided by the invention, the problem that the vertical bearing capacity of the anti-climbing device in the prior art cannot meet the current demand can be solved.

Description

Anti-climbing energy-absorbing device and rail vehicle having same

technical field

The invention relates to the technical field of rail vehicles, in particular to an anti-climbing energy-absorbing device of a rail vehicle and a rail vehicle having the same.

Background technique

With the rapid development of my country's rail transit and other fields, while it is convenient for people to travel, its operation safety has attracted more and more attention. Rail transit vehicles such as subways usually carry a large number of passengers and run at a high speed. Once a collision accident occurs, it often causes relatively large casualties and property losses. Accidents such as train rear-end collisions in recent years have fully demonstrated that even with a series of active protection measures such as signal control, dispatch management and procedural management, train collision accidents cannot be completely avoided. The performance of the passive safety protection device of the ultimate guard of personnel life and property safety is particularly important.

Statistics show that rail transit vehicles need to absorb a lot of energy during the collision process, and because there is a height difference between the collision points of the two trains, it is often accompanied by the risk of "car climbing". It is 3-4 times higher than when no climbing occurs. In order to reduce the probability of the phenomenon of climbing, an anti-climbing energy-absorbing device is usually installed at the end of the vehicle. While ensuring stable energy absorption, the device is also required to have sufficient anti-climbing capabilities. This kind of anti-climbing ability is usually assessed by vertical bearing capacity. As the speed of rail transit vehicles continues to increase, the vertical carrying capacity, as an important indicator of passive safety protection devices such as rail transit vehicles, has higher and higher requirements.

In addition, the lateral compression energy absorption capacity is also an important indicator of passive safety protection devices such as rail transit vehicles. With the continuous acceleration of rail transit vehicles, the requirements for this indicator are getting higher and higher.

The vertical bearing capacity or lateral compressive energy-absorbing capacity of the anti-climbing device in the related art cannot meet the current demand. Aiming at this technical problem, no solution has been proposed in the prior art.

Contents of the invention

The invention provides an anti-climbing energy-absorbing device and a rail vehicle having the same, in order to solve the problem that the vertical bearing capacity of the anti-climbing device in the prior art cannot meet the current demand.

In order to solve the above problems, according to one aspect of the present invention, the present invention provides an anti-climbing energy-absorbing device, comprising: anti-climbing teeth; a guide part, one end of the guide part is fixedly connected with the anti-climbing teeth; The part is sleeved on the guide part and is movably arranged relative to the guide part, and the energy-absorbing part can be compressed when the anti-climbing tooth is hit.

Further, the anti-climbing energy-absorbing device further includes: a partition part, the guide part passes through the partition part, and at least one side of the partition part is provided with an energy-absorbing part.

Further, in the direction from one end of the guide portion to the other end thereof, the cross-sectional area of the energy absorbing portion increases gradually.

Further, the projection of the outer contour of the energy absorbing portion on the vertical plane perpendicular to the partition portion is trapezoidal.

Further, there are at least two energy-absorbing parts, and there is a partition part between two adjacent energy-absorbing parts.

Further, there are a plurality of partitions, and the plurality of partitions are arranged at intervals to form energy-absorbing spaces.

Further, the guide part is a hollow cylindrical structure.

Further, the guide part is a hollow cylinder.

Further, the anti-climbing energy-absorbing device further includes: an outer cover part, one end of the outer cover part is fixedly connected to the anti-climbing tooth, and an accommodation cavity is formed inside the outer cover part, and the guide part, the energy-absorbing part and the partition part are located in the accommodation cavity.

Further, the partition part is fixedly connected with the outer cover part.

Further, the outer cover part has a plurality of guide grooves, and the plurality of guide grooves are arranged at intervals.

Further, the guide groove is a through groove.

Further, the projection of the outer contour of the outer cover portion on the vertical plane perpendicular to the partition portion is trapezoidal.

Further, the anti-climbing energy-absorbing device further includes: an installation part connected to the other end of the outer cover part.

According to another aspect of the present invention, a rail vehicle is provided. The rail vehicle includes a crash energy absorbing device, and the crash energy absorbing device is the crash energy absorbing device described above.

Applying the technical scheme of the present invention, when a collision occurs, the anti-climbing teeth at the front ends of the anti-climbing devices of the two trains are engaged with each other to prevent the vehicles from climbing and stacking under the action of the collision force to cause greater losses; in addition, the anti-climbing devices also It has the function of energy absorption. In the event of a collision, the energy-absorbing part, which is sleeved on the guide part and can move relative to the guide part, moves toward the inside of the train relative to the guide part, and finally deforms under the action of the collision force, thus absorbing Collision energy; the setting of the guide part enhances the vertical bearing capacity of the anti-climbing energy-absorbing device.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Fig. 1 shows the outline schematic diagram of the anti-climbing energy-absorbing device provided by the present invention;

Fig. 2 shows the schematic structural view of the anti-climbing energy-absorbing device provided by the present invention;

Fig. 3 shows a schematic diagram of the partition part of the anti-climbing energy-absorbing device provided by the present invention.

Wherein, the above-mentioned accompanying drawings include the following reference signs:

10. Anti-climbing teeth; 20. Guide part; 30. Partition board part; 40. Energy absorbing part; 50. Mounting part; 60. Cover part; 31. Protruding part;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Figures 1 and 2, an embodiment of the present invention provides an anti-climbing energy-absorbing device, including an anti-climbing tooth 10; a guide part 20, one end of the guiding part 20 is fixedly connected to the anti-climbing tooth 10; 40 , the energy absorbing part 40 is sleeved on the guide part 20 and is movably arranged relative to the guide part 20 , and the energy absorbing part 40 can be compressed when the anti-climbing gear 10 is hit.

Applying the technical scheme of the present invention, when a collision occurs, the anti-climbing teeth 10 at the front ends of the anti-climbing devices of the two trains engage with each other to prevent the vehicles from climbing and stacking under the action of the collision force to cause greater losses. In addition, the anti-climbing device also has the function of energy absorption. In the event of a collision, the energy-absorbing portion 40 that is sleeved on the guide portion 20 and can move relative to the guide portion 20 moves toward the interior of the train relative to the guide portion 20. move, and eventually deform under the force of the collision, thereby absorbing the energy of the collision. The setting of the guide part 20 enhances the vertical bearing capacity of the anti-climbing energy-absorbing device.

It should be noted that: the anti-climbing energy-absorbing device provided in this embodiment is installed on the front or end of the rail vehicle.

In this embodiment, the guide part 20 is a hollow cylindrical structure. The guide part 20 is set as a hollow cylindrical structure, so that the guide part 20 can greatly reduce the weight of the guide part 20 on the basis of not reducing the vertical load capacity of the guide part 20, and avoid the disadvantages of the anti-climbing energy-absorbing device being too heavy .

As an optional example, the guide part 20 is a hollow circular cylindrical structure. The bending resistance of the circular cylindrical structure in all directions is strong, so that the guide part 20 adopting the hollow circular cylindrical structure is sufficient to withstand the bending moment generated when the rail train collides, that is, the anti-climbing energy-absorbing device is increased. vertical load capacity. In addition, on the basis of ensuring the vertical bearing capacity of the anti-climbing energy-absorbing device, the cross-sectional area of the circular cylindrical structure occupies a relatively small space. Therefore, the space occupied by the cross-sectional area of the energy-absorbing part 40 is relatively small. Enlarging, thereby enhancing the energy absorbing capacity of the energy absorbing portion 40 .

In this embodiment, the connection relationship between the guide part 20 and the anti-climbing tooth 10 is: one end of the guide part 20 is fixedly connected to the anti-climbing tooth 10, specifically, the anti-climbing tooth 10 and the guide part 20 The space can be connected by welding to enhance the rigidity of the anti-climbing energy-absorbing device, so as to ensure that the anti-climbing function of the anti-climbing energy-absorbing device of this embodiment can be realized stably.

In this embodiment, the connection relationship between the guide part 20 and the energy-absorbing part 40 is: there is no fixed connection relationship between the energy-absorbing part 40 and the guide part 20 of the anti-climbing energy-absorbing device, but the energy-absorbing part 40 is sleeved On the guide part 20 and movable relative to the guide part 20 , so that the vertical load capacity of the guide part 20 will not be affected when the energy absorbing part 40 is compressed and deformed by the impact force.

In this embodiment, the anti-climbing energy-absorbing device further includes a partition part 30 , wherein the guide part 20 passes through the partition part 30 , and an energy-absorbing part 40 is provided on at least one side of the partition part 30 . The arrangement of the partition part 30 enables at least two energy-absorbing parts 40 to be provided in the anti-climbing energy-absorbing device, and the two energy-absorbing parts 40 are arranged on the left and right sides of the partition part 30 . Under the action of the collision force, the energy-absorbing portion 40 of each stage is compressed step by step, so that orderly and controllable deformation can be realized.

In an optional embodiment, there are multiple partitions 30 , and the plurality of partitions 30 are arranged at intervals to form energy-absorbing spaces. A plurality of energy-absorbing spaces are formed by spaced apart partitions 30 . With this arrangement, when a stronger energy-absorbing capacity is required, multiple energy-absorbing parts 40 can be provided, which enhances the adaptability of the anti-climbing energy-absorbing device. At the same time, when a collision occurs, multiple energy-absorbing parts 40 intervene in order to prevent multiple energy-absorbing parts 40 from deforming and absorbing energy at the same time, causing the anti-climber to lose stability and fail.

In an optional embodiment, at least two energy absorbing parts 40 are provided, and a partition part 30 is provided between two adjacent energy absorbing parts 40 . By providing a plurality of energy-absorbing parts 40, the energy-absorbing parts 40 can absorb energy step by step, so as to prevent the anti-climbing energy-absorbing device from destabilizing and failing when the overall energy is absorbed. In addition, there is a partition part 30 between two adjacent energy absorbing parts 40, so that the two adjacent energy absorbing parts 40 respectively form a single energy absorbing unit, further avoiding the anti-climbing energy absorbing device that occurs during a collision. Instability failure.

It should be noted that in this embodiment, there is no direct connection between the partition part 30 of the anti-climbing energy-absorbing device, the guide part 20 and the energy-absorbing part 40 . That is to say, the guide part 20 only passes through the partition part 30, and there is no direct connection relationship with the partition part 30; There is no direct connection.

In an optional embodiment, in the direction from one end of the guide part 20 to the other end, the cross-sectional area of the energy absorbing part 40 increases gradually. This kind of setting makes the energy absorption energy and energy absorption stability of the energy absorption part 40 gradually increase. Specifically, in the process of collision energy absorption, the energy absorption stability and energy absorption capacity of the energy absorption part 40 will increase with the energy absorption. increases with the degree of deformation. In addition, this design ensures that the energy-absorbing blocks intervene in an orderly manner when a collision occurs, and prevents different energy-absorbing blocks from deforming and absorbing energy at the same time, resulting in instability and failure of the anti-climber.

As an optional example, the area of the cross-section of the energy-absorbing portion 40 gradually increases from the end of the guide portion 20 close to the anti-climbing tooth 10 to the end away from the anti-climbing tooth 10. This design makes the energy-absorbing When the part 40 absorbs energy step by step, it starts to absorb energy from the energy-absorbing unit near the end of the anti-climbing tooth 10, and gradually progresses to the energy-absorbing unit at the end far away from the anti-climbing tooth 10, which ensures that the energy-absorbing block when a collision occurs Intervention in an orderly manner prevents different energy-absorbing blocks from deforming and absorbing energy at the same time, resulting in instability and failure of the anti-climber.

In an optional embodiment, the projection of the outer contour of the energy-absorbing part 40 on the vertical plane perpendicular to the partition part 30 is trapezoidal, wherein the outer contour of the energy-absorbing part 40 is vertical to the partition part 30 On the vertical surface, the end near the anti-climbing tooth 10 is the top edge of the trapezoid, and the end away from the anti-climbing tooth is the bottom edge of the trapezoid. This makes the energy absorption energy and energy absorption stability of the energy absorption part 40 gradually increase.

In this embodiment, the anti-climbing energy-absorbing device further includes an outer cover part 60, wherein one end of the outer cover part 60 is fixedly connected to the anti-climbing tooth 10, and this design makes it possible to squeeze the outer cover part 60 when the anti-climbing tooth 10 is hit. The energy-absorbing deformation occurs, which increases the lateral compression and energy-absorbing capacity of the anti-climbing energy-absorbing device; in addition, a housing cavity is formed inside the outer cover part 60 for accommodating the guide part 20, the energy-absorbing part 40 and the partition part 30, ensuring the anti-climbing and absorbing capacity. The integrity of the energy device can be used to protect the guide part 20 , the energy absorbing part 40 and the partition part 30 .

As an optional example, the connection between the outer cover part 60 and the anti-climbing tooth 10 may be in the form of welding.

In an optional embodiment, the outer cover part 60 has a plurality of guide grooves 61 , and the plurality of guide grooves 61 are arranged at intervals. This kind of design makes it possible to design the deformation of the outer cover part 60, that is, when the outer cover part 60 is impacted and squeezed, it deforms at the guide groove 61, so as to avoid the irregular twisting and deformation of the outer cover part 60, and then extrude and absorb energy. Part 40, the situation that affects the stable energy-absorbing deformation of the energy-absorbing part 40 occurs.

As an optional example, the guide groove 61 is a through groove and extends on the outer cover part 60 , so as to increase the deformation inducing ability of the guide groove 61 to the outer cover part 60 .

As an optional example, the guide groove 61 is a rectangular through groove with smooth corners.

In an optional embodiment, the partition part 30 is connected to the guide groove 61 of the outer cover part 60 , so as to realize the fixed connection between the partition part 30 and the outer cover part 60 . In addition, at least one side of the partition portion 30 is provided with an energy absorbing portion 40 , so that the energy absorbing deformation of the outer cover portion 60 is consistent with the energy absorbing deformation of the energy absorbing portion 40 . That is to say, by making the partition part 30 and the outer cover part 60 fixedly connected so that the energy absorbing part 40 is deformed step by step based on the partition part 30, the outer cover part 60 will also follow the energy absorbing part 40 to perform consistent Gradual energy absorption deformation.

As an optional example, for the welding of the partition part 30 and the guide groove 61 of the outer cover part 60, as shown in FIG. The guide groove 61 matches. This kind of design makes the anti-climbing energy-absorbing device insert into the guide groove 61 through the protrusion 31 on the partition part 30 during processing, so that the protrusion 31 and the guide groove 61 can be welded on the outside of the outer cover part 60, The welding process is simplified.

In this embodiment, the projection of the outer contour of the outer cover portion 60 on the vertical plane perpendicular to the partition portion 30 is trapezoidal, and this design increases the energy absorption stability of the outer cover portion 60 .

It should be noted that the projection of the outer contour of the energy-absorbing portion 40 on the vertical plane perpendicular to the partition portion 30 is also trapezoidal, that is, the outer contour of the energy-absorbing portion 40 matches the outer contour of the outer cover portion 60 .

As an optional example, the outer contour of the outer cover portion 60 is on a vertical plane perpendicular to the partition portion 30, wherein the end close to the anti-creep tooth 10 is a trapezoidal top edge, and the end far away from the anti-creep tooth is a trapezoidal bottom edge. .

In this embodiment, the anti-climbing energy-absorbing device further includes a mounting portion 50, which is connected to the other end of the outer cover portion 60, wherein the mounting portion 50 is used to install the anti-climbing energy-absorbing device on the main body of the rail vehicle .

In an optional embodiment, as shown in Fig. 1 and Fig. 2, an eye hole is provided on the mounting part 50, and the eye hole is aligned with the eye hole of the underframe of the rail vehicle. Specifically, the mounting part 50 can pass through Bolts and nuts are connected to the rail vehicle chassis.

In an optional embodiment, the mounting part 50 may also be connected to the underframe of the rail vehicle by welding.

In an optional embodiment, a through hole is formed on the installation part 50, wherein the guide part 20 is disposed corresponding to the through hole. This kind of design makes the guide part 20 move to the side away from the anti-climbing tooth 10 through the through hole, so that when the anti-climbing tooth 10 squeezes the energy-absorbing part 40 and the outer cover part 60, the guide part 20 and the anti-climbing tooth 10 It can move correspondingly with the energy-absorbing deformation of the energy-absorbing part 40 and the outer cover part 60 .

It should be noted that the anti-climbing energy-absorbing device provided in this embodiment can be adjusted to a certain extent based on the requirements of rail vehicles, for example, adjusting the length of the anti-climbing energy-absorbing device, the cross-sectional area of the energy-absorbing part 40, the density of the energy-absorbing part 40, The wall thickness of the guide part 20 and the like.

Another embodiment of the present invention provides a rail vehicle, and the rail vehicle includes a crash energy absorbing device, wherein the crash energy absorbing device is the crash energy absorbing device provided in the above embodiments. Through the technical solution of this embodiment, when a collision occurs, the anti-climbing teeth 10 at the front ends of the anti-climbing devices of the two trains engage with each other to prevent the vehicles from climbing and stacking under the action of the collision force to cause greater losses; in addition, the anti-climbing The device also has the function of energy absorption. During a collision, the energy-absorbing part 40, which is sleeved on the guide part 20 and is movable relative to the guide part 20, moves toward the interior of the train relative to the guide part 20, and finally deforms under the action of the collision force, thereby absorbing the impact of the collision. energy. The setting of the guide part 20 enhances the vertical bearing capacity of the anti-climbing energy-absorbing device. Therefore, the technical solution of this embodiment can improve the anti-climbing performance and energy absorption performance of the rail vehicle, and ensure the personal safety of the passengers.

In summary, this embodiment can achieve the following technical effects:

1. By making the guide part 20 a hollow cylinder and connecting the anti-climbing gear 10, the collision energy-absorbing device can effectively resist the climbing tendency of the rail vehicle, and can withstand the bending moment generated by the complex collision force during the collision .

2. By arranging the energy-absorbing part 40 in a trapezoidal shape, and setting a partition part 30 between two adjacent energy-absorbing parts 40, the collision energy-absorbing device can achieve the technical effect of orderly and controllable deformation.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

The relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authorized Specification. In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the description of the present invention, it should be understood that orientation words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. indicate the orientation Or positional relationship is generally based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. In the absence of a contrary description, these orientation words do not indicate or imply the device or element referred to. It must have a specific orientation or be constructed and operated in a specific orientation, so it should not be construed as limiting the protection scope of the present invention; the orientation words "inner and outer" refer to the inner and outer relative to the outline of each component itself.

For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "above" other devices or configurations would then be oriented "beneath" or "above" the other devices or configurations. under other devices or configurations”. Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. To limit the protection scope of the present invention.

Claims (15)

1. An anti-climbing energy-absorbing device for a rail vehicle, characterized in that it comprises: Anti-climbing teeth (10); a guide part (20), one end of the guide part (20) is fixedly connected to the anti-climbing tooth (10); An energy-absorbing part (40), the energy-absorbing part (40) is sheathed on the guide part (20) and is movably arranged relative to the guide part (20), and the energy-absorbing part (40) can The anti-climbing tooth (10) is compressed when it is hit. 2. The anti-climbing energy-absorbing device of a rail vehicle according to claim 1, further comprising: The partition part (30), the guide part (20) passes through the partition part (30), and the energy absorbing part (40) is provided on at least one side of the partition part (30). 3. The anti-climbing energy-absorbing device for rail vehicle according to claim 2, characterized in that, in the direction from one end of the guide portion (20) to the other end thereof, the transverse direction of the energy-absorbing portion (40) The cross-sectional area gradually increases. 4. The anti-climbing energy-absorbing device for rail vehicles according to claim 3, characterized in that, the outer contour of the energy-absorbing portion (40) is vertical to the vertical plane of the partition portion (30). The projection is trapezoidal. 5. The anti-climbing energy-absorbing device for rail vehicles according to claim 2, characterized in that there are at least two energy-absorbing parts (40), and there is a gap between two adjacent energy-absorbing parts (40). There is one partition portion (30). 6. The anti-climbing energy-absorbing device for rail vehicle according to claim 5, characterized in that, there are multiple partitions (30), and a plurality of partitions (30) are arranged and formed at intervals Energy-absorbing space. 7. The anti-climbing energy-absorbing device for rail vehicles according to claim 1, characterized in that, the guide part (20) is a hollow cylindrical structure. 8. The anti-climbing energy-absorbing device for rail vehicles according to claim 7, characterized in that, the guide part (20) is a hollow cylinder. 9. The anti-climbing energy-absorbing device for rail vehicles according to claim 2, further comprising: An outer cover part (60), one end of the outer cover part (60) is fixedly connected with the anti-climbing tooth (10), and an accommodating cavity is formed inside the outer cover part (60), the guide part (20), the suction The energy part (40) and the partition part (30) are located in the accommodating cavity. 10. The anti-climbing energy-absorbing device for rail vehicles according to claim 9, characterized in that, the partition part (30) is fixedly connected to the outer cover part (60). 11. The anti-climbing energy-absorbing device for rail vehicles according to claim 10, characterized in that, the outer cover portion (60) has a plurality of guide grooves (61), and the plurality of guide grooves (61) are spaced apart ground setting. 12. The anti-climbing energy-absorbing device for rail vehicles according to claim 11, characterized in that the guide groove (61) is a through groove. 13. The anti-climbing energy-absorbing device for rail vehicles according to claim 9, characterized in that, the projection of the outer contour of the outer cover part (60) on a vertical plane perpendicular to the partition part (30) is trapezoidal. 14. The anti-climbing energy-absorbing device for rail vehicles according to claim 9, further comprising: An installation part (50), the installation part (50) is connected with the other end of the outer cover part (60). 15. A rail vehicle comprising an anti-climbing energy-absorbing device, characterized in that the anti-climbing energy-absorbing device is the anti-climbing energy-absorbing device according to any one of claims 1-14.