CN107487337A - A kind of rail vehicle anticreeper - Google Patents

Abstract

This application relates to the field of rail transit equipment, and in particular to an anti-climber for rail vehicles, including: a fixed pipe, an overturned energy-absorbing tube and anti-climbing meshing teeth; the anti-climbing meshing teeth are fixed at one end of the overturning energy-absorbing pipe; It is fixed at one end of the fixed tube; the other end of the fixed tube is fixed at the front end of the car body, and the space where the lumen of the fixed tube extends outwards contains the flipped energy-absorbing tube, and the outer wall of the flipped energy-absorbing tube and the inner wall of the fixed tube are perpendicular to The moving direction of the vehicle body has a distance greater than the wall thickness of the overturning energy-absorbing pipe. In the collision process, the wall thickness of the fixed pipe is multiplied because the overturning energy-absorbing tube of the rail vehicle anti-climber provided by the invention deforms and absorbs energy, so while ensuring that the rail vehicle anti-climber has an energy-absorbing effect, it also improves The ability of the anti-climbing device for rail trains to resist climbing.

Description

Anti-climbing device for rail vehicle

technical field

The invention relates to the field of rail transportation equipment, in particular to an anti-climber for rail vehicles.

Background technique

As the main form of passenger transport in our country, rail vehicles are particularly important for their safety. In order to ensure the safety of rail vehicles, many advanced active protection technologies are currently used for rail vehicles, but it is still impossible to completely avoid rail vehicle collisions and threaten the safety of passengers. Therefore, while improving the active safety protection of rail vehicles to avoid collision accidents as much as possible, it is also necessary to realize the passive safety protection of rail vehicle structures to minimize the losses caused by accidents.

The anti-climber is a core component installed on the front end of the rail vehicle to realize the passive safety protection of the rail vehicle structure. Its function has two aspects: on the one hand, when the rail vehicle collides, the front end of the anti-climber of two rail vehicles is engaged. The teeth mesh with each other to prevent the vertical movement trend of the rail vehicle, prevent one rail vehicle from moving vertically upwards and climb onto another rail vehicle, and avoid the occurrence of rail vehicle climbing and overturning accidents; on the other hand, it absorbs the two The collision kinetic energy of a rail vehicle in a frontal collision reduces the deformation of the rail vehicle, thereby reducing the injuries caused by the collision accident.

Application number: 20111028330.0, application title: The patent of urban track anti-climbing device discloses an anti-climbing device, as shown in Figure 1, including: anti-climbing tooth plate 1, front partition 2, rear partition 3, foam filling pipe 4. The crush control hole 5, the box body 6 and the base 7. When a vehicle collision accident occurs, the anti-climbing tooth plates 1 of the urban track anti-climbers of the two vehicles mesh with each other, and the box body 6 is compressed and arranged along the The crushing control hole 5 on the box body 6 has a structural crushing deformation in the preset crushing mode, and the collision kinetic energy is absorbed through the crushing deformation of the box body 6, but the crushing deformation of the box body 6 is often caused by the box body 6 Bending deformation or even breaking deformation, so the integrity of the box body 6 is destroyed after crushing, deformation and energy absorption, the longitudinal strength and stiffness are reduced, and it is difficult to bear the external force in the vertical direction, that is, it is difficult to prevent the vertical direction of the vehicle after the collision. Upward motion, and then just can't play the anti-climbing function of anti-climber.

Application number: 201020274688.X, application name: a crushing type energy-absorbing anti-climbing device for urban rail transit vehicles, as shown in Figure 2, including: a main body, which is connected by an energy-absorbing device and an anti-climbing device. The anti-climbing device formed by the fixed connection of the anti-climbing terminal 1 and the anti-climbing pipe 2 is fixed on the vehicle through the car body mounting plate 4 that is set on the anti-climbing pipe 2, and the connecting plate 5 is composed of two balance weights 6 on the same side One body, together with the balance guard 8 on the other two sides, the sliding guide mechanism of the anti-climbing device is arranged around the anti-climbing pipe 2, and the adjustment rod 9 is connected between the balance guard 8 and the anti-skid end 1, and the anti-climbing pipe 2 The other end of the flange is fixedly connected with the energy absorbing tube 3 of the energy absorbing device with bolts, and the other end of the energy absorbing tube 3 is closely attached to the car body beam by adjusting the energy absorbing gasket 7. The shape of the energy-absorbing tube 3 is various shapes such as thin-walled hexagonal honeycomb, square and circular. These thin-walled metals can be arranged in various ways. According to different energy absorption requirements, thin-walled metals with different structures and thicknesses can be selected. The wall metal has a guide groove on the front end of the energy-absorbing element, so as to promote the deformation from the designated position, so that it can have a stable and continuous deformation during the collision. The working principle of the energy-absorbing device is to use regular thin-walled metal as the energy-absorbing element. When the regular thin-walled metal is hit, it can produce stable, continuous and orderly plastic deformation to absorb energy. The crush-type energy-absorbing anti-climbing device for urban rail transit vehicles has a complex structure, and its anti-climbing effect is weakened after deformation.

Therefore, how to ensure that the rail vehicle anti-climbing device has the functions of energy absorption and anti-climbing at the same time is a technical problem to be solved by those skilled in the art.

Contents of the invention

The present application provides an anti-climbing device for a rail vehicle to ensure that the anti-climbing device for a rail vehicle has the functions of energy absorption and anti-climbing at the same time.

In order to solve the above technical problems, the application provides the following technical solutions:

An anti-climber for a rail vehicle, comprising: anti-climbing meshing teeth, an overturning energy-absorbing tube and a fixed tube; the anti-climbing engaging tooth is fixed to one end of the overturning energy-absorbing tube; the other end of the overturning energy-absorbing tube is fixed to the One end of the fixed pipe; the other end of the fixed pipe is fixed on the front end of the vehicle body, and the space where the cavity of the fixed pipe extends outwards contains the inverted energy-absorbing pipe, and the outer wall of the inverted energy-absorbing pipe and the fixed pipe There is a distance between the inner walls perpendicular to the moving direction of the vehicle body that is greater than the wall thickness of the overturning energy-absorbing tube.

In the above-mentioned anti-climber for rail vehicles, preferably, both the fixed pipe and the inverted energy-absorbing pipe are round pipes, and the fixed pipe and the inverted energy-absorbing pipe are coaxially arranged.

The anti-climber for rail vehicles as described above, wherein, preferably, the end of the inverted energy-absorbing tube fixed to the fixed tube is in the shape of a horn, and the edge of the tube wall of the inverted energy-absorbing tube in the shape of a horn is fixed to the fixed tube .

In the anti-climber for rail vehicles as described above, preferably, the inner cavity of the fixing tube and the inner cavity of the turning energy-absorbing tube are filled with foamed metal.

In the anti-climber for rail vehicles as described above, preferably, the metal foam is aluminum foam.

In the anti-climber for rail vehicles as described above, preferably, the pipe wall port of the fixed pipe has an axial threaded hole, and the trumpet-shaped pipe wall edge of the inverted energy-absorbing pipe has a through hole penetrating the pipe wall, Bolts pass through the through holes of the overturning energy-absorbing tube and cooperate with the threaded holes of the fixing tube, and press the trumpet-shaped tube wall edge of the overturning energy-absorbing tube against the tube wall port of the fixing tube.

In the anti-climber for rail vehicles as described above, preferably, the fixed pipe is a weather-resistant steel fixed pipe.

In the anti-climber for rail vehicle as described above, preferably, the flip energy-absorbing tube is an aluminum alloy flip-over energy-absorbing tube or a stainless steel flip-over energy-absorbing tube.

In the anti-climber for rail vehicles as described above, preferably, the anti-climbing meshing teeth are weathering steel anti-climbing meshing teeth.

In the anti-climbing device for rail vehicles as described above, preferably, the anti-climbing meshing teeth are fixed to one ends of at least two of the overturning energy-absorbing pipes.

With respect to the above-mentioned background technology, the rail vehicle anti-climber provided by the present invention includes: a fixed pipe, an overturning energy-absorbing pipe and anti-climbing meshing teeth; the anti-climbing meshing teeth are fixed on one end of the overturning energy-absorbing pipe; One end of the tube; the other end of the fixed tube is fixed to the front end of the car body, and the space where the lumen of the fixed tube extends outwards contains a flipped energy-absorbing tube, and the movement between the outer wall of the flipped energy-absorbing tube and the inner wall of the fixed tube is perpendicular to the car body The direction has a spacing greater than the wall thickness of the flip crash tube.

Because the rail vehicle anti-climbing device provided by the embodiment of the present invention is installed on the rail vehicle, when two rail vehicles began to collide, the rail vehicle anti-climber installed on the front end of a rail vehicle body and the rail vehicle anti-climber installed on another rail vehicle The rail vehicle anti-climber at the front end of the car body is in contact, that is, the anti-climbing meshing teeth are in contact with and engaged with the anti-climbing meshing teeth.

Then, due to the relatively large kinetic energy of the two rail vehicles colliding with each other, the two rail vehicles continue to run towards each other, and this has just entered the collision process. Since the space where the lumen of the fixed tube extends outwards contains the inverted energy-absorbing tube, the inverted energy-absorbing tube There is a distance between the outer wall of the energy tube and the inner wall of the fixed tube perpendicular to the moving direction of the car body that is greater than the wall thickness of the flipped energy-absorbing tube, so the flipped energy-absorbing tube can be deformed and bent and compressed in the lumen of the fixed tube, and flipped at the same time The energy-absorbing tube is also deformed and bent and compressed in the lumen of the fixed tube until the inverted energy-absorbing tube and the inverted energy-absorbing tube are all pressed into the fixed tube and the lumen of the fixed tube respectively, that is to say, the lumens of the fixed tube and the fixed tube are reversed. The deformation of the energy-absorbing tube and the overturning energy-absorbing tube provides space, and the deformation of the overturning energy-absorbing tube and the overturning energy-absorbing tube absorbs the collision kinetic energy when two rail vehicles collide, reduces the running speed of the two rail vehicles, and guarantees the safety of the rail vehicles to a certain extent. body safety.

Then it enters the anti-climbing stage. Since both the flipping energy-absorbing tube and the flipping energy-absorbing tube are deformed, it is equivalent to the wall thickness of the fixed tube and the fixed tube being doubled. At this time, the ability to prevent the vertical upward movement of the rail train is also doubled. , thereby improving the ability of the rail train anti-climber to resist climbing while ensuring that the rail train anti-climber has an energy-absorbing effect.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in the present invention, and those skilled in the art can also obtain other drawings based on these drawings.

Fig. 1 is the structural representation of urban track anti-climbing device in the prior art;

Fig. 2 is a structural schematic diagram of a crushing type energy-absorbing anti-climbing device for urban rail transit vehicles in the prior art;

Fig. 3 is a schematic structural view of the anti-climber for rail vehicle provided by the embodiment of the present invention;

Fig. 4 is the schematic diagram of the three-dimensional structure of the rail vehicle anti-climber provided by the embodiment of the present invention;

Fig. 5 is a schematic diagram when the rail vehicle anti-climber provided by the embodiment of the present invention starts to collide;

Fig. 6 is a schematic diagram during the collision process of the rail vehicle anti-climber provided by the embodiment of the present invention;

Fig. 7 is a schematic diagram of the anti-climbing device provided by the embodiment of the present invention after collision and anti-climbing;

Fig. 8 is a schematic diagram of the specific structure of the rail vehicle anti-climber provided by the embodiment of the present invention.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

As shown in Fig. 3 and Fig. 4, a rail vehicle anti-climber provided by the present invention includes: a fixed pipe 11, an overturning energy-absorbing pipe 13 and an anti-climbing meshing tooth 14; The other end of the overturning energy-absorbing tube 13 is fixed on one end of the fixed tube 11; the other end of the fixed tube 11 is fixed on the front end of the vehicle body 15, and the space where the lumen of the fixed tube 11 extends outward contains the overturning energy-absorbing tube 13, and the overturning energy-absorbing There is a distance between the outer wall of the energy tube 13 and the inner wall of the fixed tube 11 perpendicular to the moving direction of the vehicle body that is larger than the wall thickness of the overturned energy-absorbing tube 13 .

Because the rail vehicle anti-climber provided by the embodiment of the present invention is installed on the rail vehicle, when two rail vehicles began to collide, as shown in Figure 5, the rail vehicle anti-climber installed on a rail vehicle body 15 front end and The rail vehicle anti-climber that is installed on another rail vehicle car body 25 front ends contacts, and just anti-climbing meshing tooth 14 contacts and engages with anti-climbing meshing tooth 24; , the two rail vehicles continue to run towards each other, and this has entered the collision process. As shown in Figure 6, since the space where the lumen of the fixed tube 11 extends outward contains the inverted energy-absorbing tube 13, the outer wall of the inverted energy-absorbing tube 13 is in contact with the fixed There is a distance between the inner walls of the tubes 11 that is greater than the wall thickness of the overturned energy-absorbing tube 13 perpendicular to the direction of movement of the vehicle body, so that the overturned energy-absorbing tube 13 can be deformed and bent and compressed in the lumen of the fixed tube 11, while overturning the energy-absorbing tube 23 is also deformed and bent and compressed in the lumen of the fixed tube 21 until the overturned energy-absorbing tube 13 and the overturned energy-absorbing tube 23 are all pressed into the lumen of the fixed tube 11 and the fixed tube 21 respectively, that is to say, the fixed tube 11 and the fixed tube The lumen of 21 provides space for the deformation of the overturning energy-absorbing tube 13 and the overturning energy-absorbing tube 23, and the deformation of the overturning energy-absorbing tube 13 and the overturning energy-absorbing tube 23 absorbs the collision kinetic energy when two rail vehicles collide, reducing the impact of the two rail vehicles. The running speed ensures the safety of the rail vehicle body to a certain extent; then it enters the anti-climbing stage, as shown in Figure 7, since the turning energy-absorbing tube 13 and the turning energy-absorbing tube 23 are all deformed, it is equivalent to the fixed tube 11 and the fixed The wall thickness of the pipe 21 has been multiplied, and the ability to prevent the vertical upward movement of the rail train has also been multiplied this time, thereby ensuring that the anti-climber for the rail train has an energy-absorbing effect while also improving the resistance of the anti-climber for the rail train. capacity of the car. On the basis of the foregoing embodiments, in order to ensure that the deformation of the overturning energy-absorbing tube 13 of the rail train anti-climbing device is even, those skilled in the art preferably set the fixed tube 11 and the overturning energy-absorbing tube 13 as round tubes, and the fixed tube 11 and the overturning energy-absorbing tube The energy tubes 13 are coaxially arranged. Of course, other shapes, such as ellipse, can also be used, as long as the technical effects required by the embodiments of the present invention can be met.

In addition, those skilled in the art can also set the end of the inverted energy-absorbing tube 13 fixed to the fixed tube 11 into a trumpet shape, and the edge of the tube wall of the inverted energy-absorbing tube 13 in the shape of a trumpet is fixed to the fixed tube 11 . On the basis of the above, the size of the fixed tube 11 and the overturned energy-absorbing tube 13 can preferably be set as follows, where the length of the fixed tube 11 is marked as L, the outer diameter of the fixed tube 11 (that is, the trumpet shape of the overturned energy-absorbing tube 13 The distance between the outer edge at the largest dimension and the central axis of the inverted energy-absorbing tube 13 ) is marked R. The parameters of the overturning energy-absorbing tube 13 are set according to the parameters of the fixed tube 11, that is, the length of the overturning energy-absorbing tube 13 (the distance between the end of the straight pipe section of the overturning energy-absorbing tube 13 and the maximum size of the horn shape near the outer surface of the fixed tube 11) 1.5L to 2.5L, the inner diameter of the straight pipe section of the inverted energy-absorbing tube 13 is R/4 to R/2, the wall thickness of the inverted energy-absorbing tube is R/5 to R/6, and the bending radius of the inverted energy-absorbing tube 13 at the trumpet shape R/4 to R/2, of course, the values of these parameters are not limited to the above-mentioned ranges, nor are they limited to the above-mentioned ratios. Parameters such as length, radius, thickness of 13 are all different in design.

As shown in Figure 8, it is preferable to set the length of the overturning energy-absorbing tube 13 to 2L, which avoids the space for accommodating deformation inside the fixed tube 11 due to the short length of the overturning energy-absorbing tube 13, and ensures the deformation of the overturning energy-absorbing tube 13 It can absorb energy to the greatest extent, and it also avoids the deformation caused by the overturning energy-absorbing tube 13 being too long. After the deformation, part of the overturning energy-absorbing tube 13 is still located outside the fixed tube 11, which ensures that after the overturning energy-absorbing tube 13 is deformed, the overturning energy-absorbing tube 13 The energy pipe 13 and the fixed pipe 11 have relatively strong strength; the inner diameter of the straight pipe section of the overturned energy-absorbing tube 13 is R/3, the bending radius of the trumpet shape of the overturned energy-absorbing tube 13 is R/3, and the wall thickness of the overturned energy-absorbing tube is R/3 6; In this way, it can be ensured that there is enough space between the inverted energy-absorbing tube 13 and the fixed tube 11 to ensure that the inverted energy-absorbing tube 13 can be deformed and bent and compressed in the lumen of the fixed tube 11, while the inverted energy-absorbing tube 13 is bent in the shape of a trumpet The value of the radius can also avoid severe stress concentration in this place during the bending deformation and cause fracture, and the value of the wall thickness of the inverted energy-absorbing tube 13 can also avoid the deformation of the inverted energy-absorbing tube 13 during the bending deformation process. Of course, for the fixed The selection of parameters such as the length, radius, thickness, and bending radius of the tube 11 and the overturning energy-absorbing tube 13 can ensure that the rail train anti-climber has an energy-absorbing effect as long as it can meet the requirements of the embodiment of the present invention. The ability to resist climbing is enough.

For the tube wall edge of the trumpet shape of the overturning energy-absorbing tube 13 and the fixed tube 11, the fixed form can be fixed by threaded connection, or by welding, or by other fixing methods, as long as the technical effect to be achieved by the embodiments of the present invention can be met. That is, in the embodiment of the present invention, it is preferred to use threaded connection to fix. Specifically, the pipe wall port of the fixed pipe 11 has an axial threaded hole, and the trumpet-shaped pipe wall edge of the inverted energy-absorbing pipe 13 has a through pipe wall. Bolt passes through the through hole of the overturning energy-absorbing tube 13 to cooperate with the threaded hole of the fixed tube 11, and the tube wall edge of the overturning energy-absorbing tube 13 trumpet shape is pressed against the tube wall port of the fixed tube 11. Of course, the fixing of the fixed pipe 11 and the front end of the vehicle body 15, the fixing of the overturning energy-absorbing pipe 13 and the anti-climbing meshing teeth 14 can all be fixed by bolts.

In order to ensure that the energy absorption effect of the anti-climber for rail vehicles provided by the embodiment of the present invention is better, those skilled in the art can also fill the inner cavity of the fixed pipe 11 and the inner cavity of the inverted energy-absorbing tube 13 with metal foam. The preferred embodiment of the metal foam is aluminum foam 12 (as shown in Figure 3 and Figure 4), and of course it can also be other metal foams, as long as the energy absorption effect can be achieved, which is the scope of protection of the embodiments of the present invention, filling The aluminum foam in the inner cavity of the inverted energy-absorbing tube 13 can also play a role in controlling the radius of the inverted energy-absorbing tube 13 .

In addition, since the material of the front end of the rail vehicle body 15 is generally weather-resistant steel, those skilled in the art preferably set the fixed pipe 11 as a weather-resistant steel fixed pipe for the fixed pipe 11. Of course, it can also be a fixed pipe 11 made of other steel materials, as long as It only needs to meet the technical effect to be achieved by the present invention. Of course, those skilled in the art can also preferably set the anti-climbing meshing teeth 14 as weather-resistant steel anti-climbing meshing teeth.

On the basis of the above-mentioned embodiments, the inverted energy-absorbing tube 13 can be configured as an aluminum alloy inverted energy-absorbing tube or a stainless steel inverted energy-absorbing tube. By adopting the above-mentioned flipped energy-absorbing tube 13 , while ensuring the strength of the flipped energy-absorbing tube 13 , deformation and energy absorption can also occur relatively easily.

As shown in Figure 4, in order to ensure a better energy-absorbing effect, the anti-climbing meshing teeth 14 have meshing openings, and the openings of the meshing ports face the opposite direction of the inverted energy-absorbing tube 13 and the fixed tube 11, that is, from the side of the inverted energy-absorbing tube 13. The end of the straight pipe section extends away from the fixed pipe. In order to ensure the meshing area, and then to ensure a greater meshing force after meshing, multiple meshing holes can also be set, for example, three meshing holes can be arranged, and the three meshing holes can be arranged side by side, or anti-slip can also be set on the inner wall of the meshing hole The protrusion, that is, set a larger roughness of the inner wall of the meshing port. It may be that the anti-climbing meshing teeth 14 are fixed to one end of at least two flipping energy-absorbing tubes 13. In the embodiment of the present invention, the anti-climbing meshing teeth 14 are preferably fixed to three flipping energy-absorbing tubes 13, and the three flipping energy-absorbing tubes 13 are fixedly connected to three fixed On the pipe 11, anti-climbing meshing teeth 14, three overturning energy-absorbing pipes 13 and three fixed pipes 11 form an anti-climbing energy-absorbing system, and then a plurality of anti-climbing energy-absorbing systems can be fixed at the front end 15 of the rail vehicle body. In the embodiment of the invention, two such anti-climbing energy-absorbing systems are preferably fixed.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. A kind of 1. rail vehicle anticreeper, it is characterised in that including：Anti-creep engaging tooth, upset energy absorbing tube and fixing pipe；It is described anti- Climb one end that engaging tooth is fixed on the upset energy absorbing tube；The other end of the upset energy absorbing tube is fixed on the one of the fixing pipe End；The other end of the fixing pipe is fixed on car body front end, and the space that the tube chamber of the fixing pipe stretches out includes institute Upset energy absorbing tube is stated, is had between the outer wall of the upset energy absorbing tube and the inwall of the fixing pipe perpendicular to body movement direction There is the spacing more than the upset energy-absorbing thickness of pipe wall.
2. 2. rail vehicle anticreeper according to claim 1, it is characterised in that the fixing pipe and the upset energy absorbing tube It is pipe, and the fixing pipe and the upset energy absorbing tube are coaxially arranged.
3. 3. rail vehicle anticreeper according to claim 2, it is characterised in that the upset energy absorbing tube and the fixing pipe Fixed one end is horn shape, and the tube wall edge of the upset energy absorbing tube horn shape is fixed with the fixing pipe.
4. 4. rail vehicle anticreeper according to claim 3, it is characterised in that the fixed tube cavity is inhaled with the upset Energy tube cavity is filled with foam metal.
5. 5. rail vehicle anticreeper according to claim 4, it is characterised in that the foam metal is foamed aluminium.
6. 6. rail vehicle anticreeper according to claim 5, it is characterised in that the tube wall port of the fixing pipe has axle To screwed hole, the tube wall edge of the upset energy absorbing tube horn shape has the through hole of insertion tube wall, and bolt turns over through described Turn the through hole of energy absorbing tube and the screwed hole of the fixing pipe coordinates, and by the tube wall edge pressure of the upset energy absorbing tube horn shape Tightly in the tube wall port of the fixing pipe.
7. 7. rail vehicle anticreeper according to claim 6, it is characterised in that the fixing pipe is weathering steel fixing pipe.
8. 8. rail vehicle anticreeper according to claim 7, it is characterised in that the upset energy absorbing tube overturns for aluminium alloy Energy absorbing tube or stainless steel upset energy absorbing tube.
9. 9. rail vehicle anticreeper according to claim 8, it is characterised in that the anti-creep engaging tooth is weathering steel anti-creep Engaging tooth.
10. 10. rail vehicle anticreeper according to claim 9, it is characterised in that the anti-creep engaging tooth is fixed at least One end of two upset energy absorbing tubes.