Energy absorption device and railway vehicle

Abstract

The embodiment of the invention provides an energy absorption device and a railway vehicle, and belongs to the technical field of vehicles. The energy absorption device comprises a supporting piece, a guiding piece and an expansion tearing pipe, the supporting piece is arranged on the vehicle, a containing cavity is formed in the supporting piece, a mounting opening is formed in the supporting piece, the guiding piece is arranged on the supporting piece through the mounting opening, one end of the expansion tearing pipe is inserted into the guiding piece, a plurality of tearing grooves are formed in the periphery of the expansion tearing pipe, and the expansion tearing pipe is configured to be arranged in the mode that the supporting piece is arranged in the containing cavity. One end of the bulging tearing pipe is provided with a tearing groove, the other end of the bulging tearing pipe moves towards the guide part when being subjected to axial external force, and the guide part is configured to bulge the bulging tearing pipe when the bulging tearing pipe moves towards the guide part, so that the bulging tearing pipe is torn into a plurality of tearing pieces along the tearing groove, and the tearing pieces are guided to be contained in the containing cavity. According to the energy absorption device, the bulging tearing pipe is torn into the multiple tearing pieces along the tearing groove through the guiding piece, the tearing pieces are guided to be contained in the containing cavity, the space occupation amount of the tearing pieces can be reduced, and the structural utilization rate of the bulging tearing pipe can be increased.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an energy absorption device and a rail vehicle. Background Art

[0002] Rail vehicles are transportation vehicles that operate on tracks such as railways, subways, and light rail. Rail vehicles operate at high speeds, and to improve collision safety, they are typically equipped with energy-absorbing devices at the ends of the cab. In the event of a collision, the energy-absorbing devices plastically deform to dissipate the collision's kinetic energy and reduce the impact load on the vehicle body, thereby improving the vehicle's collision safety.

[0003] Common energy absorbers are categorized by their energy absorption method into various types, including bulging, necking, planing, and honeycomb. In particular, bulging energy absorbers swell and tear into multiple freely curled pieces during energy absorption. These curled pieces not only increase the space occupied by the absorber but also reduce its energy absorption range to less than its own length, resulting in low structural utilization. Summary of the Invention

[0004] The embodiments of the present application provide an energy absorbing device and a rail vehicle, which are used to solve the problems in the prior art of the inflatable energy absorbing device in which the curled tearing piece formed during use occupies a large space and has a low utilization rate of the energy absorbing device.

[0005] In a first aspect, an embodiment of the present application provides an energy absorbing device, comprising:

[0006] A support member, the support member is used to be installed on a vehicle, the support member is provided with a receiving cavity, and the support member is provided with a mounting port communicating with the receiving cavity;

[0007] a guide member, the guide member being arranged on the support member through the mounting opening;

[0008] An expansion and tearing tube, one end of which is inserted into the guide member, and a plurality of tearing grooves are provided on the outer circumference of the expansion and tearing tube, and the tearing grooves extend along the axial direction of the expansion and tearing tube;

[0009] The expansion and tearing tube is configured to move toward the guide member when the other end of the expansion and tearing tube is subjected to an axial external force;

[0010] The guide member is configured to inflate the inflatable tearing tube when the inflatable tearing tube moves toward the guide member, so as to tear the inflatable tearing tube into a plurality of tear pieces along the tear groove and guide each of the tear pieces to be accommodated in the accommodating cavity.

[0011] As an optional embodiment, a plurality of partition ribs are provided in the receiving cavity, and the plurality of partition ribs are arranged at intervals along the circumference of the mounting opening. The receiving cavity is divided into a plurality of partition cavities by the partition ribs, and the partition cavities are used to accommodate the corresponding tearing pieces.

[0012] As an optional implementation, the support member includes two substrates arranged opposite to each other, and the separation rib is arranged between the two substrates.

[0013] As an optional implementation, the separation rib and the support member are integrally formed.

[0014] As an optional embodiment, the guide member includes a base body and a connecting platform provided on the base body, and one end of the expansion and tearing tube is inserted into the connecting platform;

[0015] A guide surface is formed on the outer periphery of the seat body, and the guide surface is configured to inflate the inflatable tear tube when the inflatable tear tube moves toward the guide member.

[0016] As an optional embodiment, a guide protrusion is provided on the connecting platform, and the guide protrusion is configured to guide the expansion and tearing tube to be inserted into the connecting platform.

[0017] As an optional implementation, at least a portion of the seat is disposed in the receiving cavity.

[0018] As an optional embodiment, an anti-climbing member is further included, and the anti-climbing member is arranged at the other end of the bulging and tearing tube.

[0019] As an optional embodiment, the anti-climbing member includes an anti-climbing plate and a plurality of anti-climbing teeth provided on the anti-climbing plate, and the anti-climbing plate is connected to the other end of the bulging tearing tube.

[0020] The energy absorption device provided in the embodiment of the present application is configured by providing a receiving cavity in the support member. When the bulging tearing tube receives external force and moves toward the guide member, the guide member inflates the bulging tearing tube so that the bulging tearing tube is torn into multiple tearing pieces along the tearing groove. The guide member can guide each tearing piece to be received in the receiving cavity, so that the tearing pieces are dispersed in the receiving cavity, which can avoid the formation of traditional curled tearing pieces, thereby reducing the space occupied by the tearing pieces and the impact on the energy absorption stroke, thereby improving the structural utilization rate and energy absorption effect of the bulging tearing tube.

[0021] In addition, setting the receiving cavity on the support member not only improves the space utilization of the support member, but also constrains the dispersion of the tearing pieces through the receiving cavity, so that the tearing pieces are easily dispersed in the receiving cavity without occupying the space outside the support member.

[0022] In a second aspect, the present application provides a rail vehicle comprising a vehicle body and an energy absorbing device as described in any one of the first aspects, arranged on the vehicle body.

[0023] The rail vehicle provided in the embodiments of the present application is beneficial to improving the collision safety of the rail vehicle by providing an energy absorbing device on the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0025] Figure 1 An exploded view of the energy absorbing device provided in an embodiment of the present application;

[0026] Figure 2 A schematic structural diagram of the energy absorption device provided in an embodiment of the present application;

[0027] Figure 3 A schematic structural diagram of the expansion tear tube and the anti-climbing member in the energy absorbing device provided in an embodiment of the present application from one perspective;

[0028] Figure 4 A schematic structural diagram of the expansion tear tube and the anti-climbing member in the energy absorbing device provided in an embodiment of the present application from another perspective;

[0029] Figure 5 A schematic structural diagram of a guide member in an energy absorbing device provided in an embodiment of the present application;

[0030] Figure 6 This is a schematic structural diagram of the expansion and tearing tube in the energy absorbing device provided in an embodiment of the present application in an expansion and tearing state;

[0031] Figure 7 A schematic diagram of the structures of two energy-absorbing devices provided in an embodiment of the present application at the initial stage of a collision;

[0032] Figure 8 A schematic diagram of the structure of two energy-absorbing devices provided in an embodiment of the present application in the mid-collision phase.

[0033] Description of Reference Numerals

[0034] 100, support member; 101, base plate; 102, separation rib; 103, receiving cavity; 1031, separation cavity; 104, mounting port; 105, mounting hole;

[0035] 200, guide member; 201, seat body; 2011, guide surface; 2012, connection hole; 202, connection platform; 2021, guide protrusion;

[0036] 300, bulging tear tube; 301, tear groove; 302, tear sheet;

[0037] 400, anti-climbing parts; 401, anti-climbing boards; 402, anti-climbing teeth.

[0038] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0041] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0042] The terms "first," "second," "third," "fourth," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the application described herein can, for example, be implemented in an order other than that illustrated or described herein.

[0043] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0044] As mentioned in the background, energy absorbers play a key role in vehicles, and their performance directly affects the collision safety of the vehicle. Energy absorbers are mainly divided into bulging, necking, planing, and honeycomb types according to their energy absorption methods.

[0045] Among them, the inflatable energy absorption device will be inflated and torn into multiple freely curled tear pieces when absorbing energy. The curled tear pieces will not only increase the space occupied, but also make the energy absorption stroke of the energy absorption device shorter than its own length, thereby resulting in low structural utilization of the energy absorption device, and thus affecting the collision safety of the vehicle.

[0046] Based on the above introduction, an energy absorbing device and a vehicle are provided in one or more embodiments of the present application. The energy absorbing device is described below with reference to the accompanying drawings.

[0047] like Figure 1 and Figure 2 As shown in , the energy absorbing device provided in the embodiment of the present application includes a support member 100 , a guide member 200 and an inflation tearing tube 300 .

[0048] The support member 100 is configured for installation on a vehicle. A receiving cavity 103 is defined within the support member 100. A mounting opening 104 is provided on the support member 100, communicating with the receiving cavity 103. The guide member 200 is mounted on the support member 100 via the mounting opening 104. One end of an expansion and tearing tube 300 is inserted into the guide member 200. The expansion and tearing tube 300 is provided with a plurality of tear grooves 301 on its outer circumference, extending axially along the expansion and tearing tube 300.

[0049] The inflatable tear tube 300 is configured to move toward the guide member 200 when the other end of the inflatable tear tube 300 is subjected to an axial external force. The guide member 200 is configured to inflate the inflatable tear tube 300 when the inflatable tear tube 300 moves toward the guide member 200, so that the inflatable tear tube 300 is torn into a plurality of tear pieces 302 along the tear groove 301, and each tear piece 302 is guided to be received in the receiving cavity 103.

[0050] From the above description, it can be seen that the energy absorption device in the embodiment of the present application, by setting a receiving cavity 103 in the support member 100, when the bulging tearing tube 300 bears external force and moves toward the guide member 200, the guide member 200 inflates the bulging tearing tube 300, and the bulging tearing tube 300 is torn into multiple tearing pieces 302 along the tearing groove 301, and the guide member 200 can guide each tearing piece 302 to be accommodated in the receiving cavity 103, so that the tearing piece 302 is dispersed in the receiving cavity 103, which can avoid the formation of traditional curled tearing pieces 302, which is beneficial to reducing the space occupied by the tearing piece 302 and the impact on the energy absorption stroke, thereby helping to improve the structural utilization and energy absorption effect of the bulging tearing tube 300.

[0051] Furthermore, providing the receiving cavity 103 on the support member 100 not only improves the space utilization of the support member 100, but also constrains the dispersion of the tear-off piece 302 through the receiving cavity 103, making it easier for the tear-off piece 302 to disperse within the receiving cavity 103 without occupying space outside the support member 100. Furthermore, the tear-off piece 302 being housed within the receiving cavity 103 can also avoid safety issues that would otherwise arise if the tear-off piece 302 were located outside.

[0052] It should be noted that the vehicle in the embodiments of the present application may be a rail vehicle, which refers to a vehicle that runs on tracks such as railways, subways, and light rails. It is understood that the energy absorption device can be configured not only on rail vehicles but also on other types of vehicles with requirements for collision performance.

[0053] Energy-absorbing devices can be specifically installed in areas of the vehicle where collisions are expected, such as the ends or sides. When installed at the front of the vehicle, the energy-absorbing device can absorb the forces of a frontal collision, thereby improving the safety of the vehicle in frontal collisions. When installed at the side of the vehicle, the energy-absorbing device can absorb the forces of a side collision, thereby improving the safety of the vehicle in side collisions. Of course, in specific implementation, the placement of the energy-absorbing device can be determined based on the vehicle's collision requirements.

[0054] like Figure 1 and Figure 2 As shown in , the support member 100 is preferably plate-shaped and is disposed on the vehicle. The plate-shaped support member 100 has the advantages of being simple in structure and easy to arrange and implement. Furthermore, the receiving cavity 103 formed within the plate-shaped support member 100 is also flat, which helps constrain the state of the tearing piece 302, allowing the tearing piece 302 to move and disperse better within the receiving cavity 103, thereby improving the dispersion and containment of the tearing piece 302 within the receiving cavity 103.

[0055] It should be noted that Figure 1 and Figure 2Only a partial structure of the support member 100 is illustrated. In specific implementation, as a preferred embodiment, the specifications of the support member 100 and the receiving cavity 103 are large enough to accommodate the tearing piece 302 with a maximum length, and the tearing piece 302 will not extend out of the support member 100.

[0056] like Figure 1 As shown in FIG, the mounting opening 104 in this embodiment is disposed on the side of the support member 100 facing away from the vehicle. For example, the mounting opening 104 is preferably disposed in the middle of the receiving cavity 103 to facilitate the multiple tear-off pieces 302 entering the middle of the receiving cavity 103 and dispersing to the surrounding areas, thereby achieving a better dispersion effect and improving the structural utilization of the receiving cavity 103.

[0057] As an optional embodiment, multiple dividing ribs 102 are provided within the receiving chamber 103. These ribs 102 are spaced circumferentially around the mounting opening 104. The receiving chamber 103 is divided by the dividing ribs 102 into multiple compartments 1031, each of which is used to accommodate a corresponding tear-off piece 302. The compartments 1031 accommodate corresponding tear-off pieces 302, allowing each tear-off piece 302 to disperse and move independently within the receiving chamber 103 without interfering with each other. Furthermore, the dividing ribs 102 can guide the tear-off pieces 302 during their movement, ensuring that they follow a predetermined path and are less likely to curl or skew.

[0058] As a preferred embodiment, Figure 1 and Figure 2 As shown in , the inflatable tear tube 300 is preferably a circular tube, and four tear grooves 301 may be provided at intervals on its outer circumference. Each tear groove 301 is provided through both ends of the inflatable tear tube 300, and the inflatable tear tube 300 can be torn into four tear pieces 302. In this case, four dividing ribs 102 may be provided within the receiving chamber 103, forming four dividing chambers 1031. The four dividing chambers 1031 are provided in a one-to-one correspondence with the multiple tear pieces 302 to respectively accommodate the corresponding tear pieces 302.

[0059] like Figure 2 As shown in FIG, as an example of an arrangement of four dividing ribs 102, two dividing ribs 102 are respectively provided on two opposite sides of the mounting opening 104, and the two dividing ribs 102 on the same side are arranged in parallel. Such an arrangement has a good guiding and dispersing effect on the tearing piece 302. It is understandable that the four dividing ribs 102 are arranged in addition to the Figure 2 In addition to the arrangement shown in , other arrangements may also be used as long as the dispersion effect of the tearing pieces 302 is satisfied.

[0060] Of course, the number of tearing pieces 302 in this embodiment is not limited to four. In specific implementation, the number of tearing pieces 302 can also be increased or decreased according to usage requirements. In this case, it is only necessary to ensure that the number of partition chambers 1031 is consistent with the number of tearing pieces 302.

[0061] As an optional embodiment, the support member 100 includes two substrates 101 arranged opposite to each other, and the separating rib 102 is arranged between the two substrates 101. The separating rib 102 is preferably connected to the two substrates 101 by welding. This is convenient for easy processing and easy to arrange and implement. Of course, the separating rib 102 can also be connected between the two substrates 101 by screwing, bonding, or other connection methods, as long as the connection strength requirements are met. The separating rib 102 and the substrate 101 here are preferably made of steel, and other materials can also be selected according to usage requirements.

[0062] As another optional embodiment, the separating rib 102 and the support member 100 are integrally formed. This improves the connection strength and reliability between the separating rib 102 and the support member 100, and also improves assembly efficiency. In a specific implementation, the separating rib 102 and the support member 100 can be integrally extruded from an aluminum alloy. This facilitates a lightweight design while still meeting the requirements. Of course, the materials of the separating rib 102 and the support member 100 can also be adjusted based on the requirements.

[0063] The guide member 200 of this embodiment includes a base 201 and a connecting platform 202 mounted on the base 201. One end of the expansion and tearing tube 300 is inserted into the connecting platform 202. A guide surface 2011 is formed on the outer periphery of the base 201. The guide surface 2011 is configured to inflate the expansion and tearing tube 300 as it moves toward the guide member 200. For ease of description, the end of the expansion and tearing tube 300 that is inserted into the connecting platform 202 is referred to as the first end, and the other end of the expansion and tearing tube 300 is referred to as the second end.

[0064] Here, by providing a connecting platform 202, the first end of the expanding and tearing tube 300 is facilitated to be inserted into the guide member 200, and through the guide surface 2011 on the base body 201, when the expanding and tearing tube 300 moves toward the base body 201, the first end of the expanding and tearing tube 300 is expanded through the guide surface 2011, and the tearing groove 301 at the first end is torn, thereby forming a tearing piece 302.

[0065] Reference Figure 2 and Figure 5As shown in FIG, the base body 201 is generally truncated cone-shaped. The cross-sectional area of ​​the guide surface 2011 gradually increases as it moves away from the connecting platform 202. This allows for expansion of the expansion and tearing tube 300 and for the tube 300 to tear at the tear groove 301. The connecting platform 202 is cylindrical in shape to accommodate the expansion and tearing tube 300. During installation, the first end of the expansion and tearing tube 300 is interference-fitted onto the outside of the connecting platform 202.

[0066] Furthermore, the connecting platform 202 is provided with a guide protrusion 2021, which is configured to guide the expansion and tearing tube 300 when inserted into the connecting platform 202. This configuration facilitates the insertion of the expansion and tearing tube 300 into the connecting platform 202 and can also guide the moving expansion and tearing tube 300 in the event of a collision, allowing the expansion and tearing tube 300 to move along its own axis toward the base 201. The guide surface 2011 can continuously tear the tear groove 301 and guide the torn tear pieces 302 into the corresponding separation cavity 1031 for dispersion.

[0067] In terms of specific structure, Figure 5 As shown in FIG, the guide protrusion 2021 is disposed on the end of the connecting platform 202 facing away from the base 201. In a preferred embodiment, the guide protrusion 2021 is hemispherical. This allows the cross-sectional area of ​​the guide protrusion 2021 to gradually increase toward the connecting platform 202. The hemispherical guide protrusion 2021 has no angular transitions, which helps reduce resistance to the movement of the expansion and tear tube 300. Furthermore, the hemispherical guide protrusion 2021 exhibits good symmetry, enabling it to automatically correct deviations during insertion and movement of the expansion and tear tube 300, thereby enhancing the stability of the expansion and tear tube 300 during axial movement.

[0068] It should be noted that, in addition to being hemispherical, the guide protrusion 2021 in this embodiment can also be truncated cone-shaped. In this case, the truncated cone-shaped guide protrusion 2021 also has a better guiding effect.

[0069] As a preferred embodiment, at least a portion of the base 201 is disposed in the receiving cavity 103. This not only allows the receiving cavity 103 to be utilized for the installation of the base 201, further reducing the space occupied by the energy absorbing device, but also facilitates smoother entry of the torn pieces 302 into the corresponding separation cavities 1031.

[0070] In addition, the size of the mounting opening 104 should be as small as possible while still meeting the mounting requirements of the inflatable tear tube 300. This also helps to constrain the tear piece 302 after tearing, so that the tear piece 302 can move more smoothly in the corresponding partition cavity 1031.

[0071] In this embodiment, the seat body 201 is preferably detachably mounted on the support member 100, so that the seat body 201 can be easily assembled and disassembled, thereby improving the utilization rate of the guide member 200. For example, the seat body 201 can be detachably mounted on the support member 100 using bolts.

[0072] like Figure 1 and Figure 5 As shown in FIG, the support member 100 is provided with a mounting hole 105 on the side facing the vehicle for passage of a bolt, and the base 201 is provided with a connecting hole 2012 corresponding to the mounting hole 105. The bolts passing through the mounting hole 105 are then threadedly engaged with the connecting hole 2012, thereby mounting the base 201 on the support member 100 and completing the installation of the guide member 200 on the support member 100. Of course, the number of bolts required for installation of the guide member 200 can be determined based on actual use and is not limited to the four shown in the figure.

[0073] As a preferred embodiment, the energy-absorbing device further includes an anti-climbing member 400, which is disposed at the other end of the inflating and tearing tube 300. The anti-climbing member 400 can contact an external impactor (such as the energy-absorbing device of another vehicle) during a collision, preventing the impactor from climbing upward or downward. This also facilitates the transmission of the collision force to the inflating and tearing tube 300, allowing the collision force to be transmitted axially along the inflating and tearing tube 300. This allows the inflating and tearing tube 300 to absorb energy through tearing, thereby improving collision safety.

[0074] like Figure 3 and Figure 4 As shown in FIG, as a preferred embodiment, the anti-climbing member 400 includes an anti-climbing plate 401 and a plurality of anti-climbing teeth 402 disposed on the anti-climbing plate 401. The anti-climbing plate 401 is connected to the other end of the expansion and tear tube 300. Specifically, the anti-climbing plate 401 is connected to the second end of the expansion and tear tube 300. The plurality of anti-climbing teeth 402 cooperate to enhance the locking effect against external impact objects (for example, the anti-climbing teeth 402 can engage with the anti-climbing teeth 402 of another vehicle).

[0075] Among them, the area of ​​the anti-climbing plate 401 is preferably larger than the cross-sectional area of ​​the bulging tear tube 300, so that a large-area blocking surface can be formed by the anti-climbing plate 401, which is conducive to uniformly transmitting the collision force to the bulging tear tube 300, and allowing the collision force to be transmitted along the axial direction of the bulging tear tube 300, thereby absorbing energy with the help of the tearing of the bulging tear tube 300, thereby reducing the collision force transmitted to the vehicle.

[0076] The multiple anti-climb teeth 402 in this embodiment can extend along a first direction and be spaced apart in a second direction. The first direction can be the length or width of the anti-climb plate 401, and the second direction is perpendicular to the first direction. During implementation, the specific specifications and number of the anti-climb teeth 402 can be adjusted based on usage requirements.

[0077] An exemplary assembly and use process of the energy absorbing device in the embodiment of the present application is as follows:

[0078] The guide member 200 is mounted on the support member 100 by means of bolts, and one end of the expansion and tearing tube 300 is inserted into the connecting platform 202 of the guide member 200 to complete the assembly of the energy absorbing device.

[0079] When a collision occurs, the collision force acts on the anti-climbing member 400 and is transmitted to the bulging tearing tube 300 through the anti-climbing plate 401, driving the bulging tearing tube 300 to move toward the guide member 200. At this time, the guide surface 2011 on the base 201 inflates the bulging tearing tube 300, causing the tearing groove 301 to tear and form multiple tearing pieces 302. The guide surface 2011 guides each tearing piece 302 to enter the corresponding separation cavity 1031. Figure 6 As shown in FIG, as the inflated tear tube 300 continues to move, the tear pieces 302 become longer and longer and disperse in the corresponding separation grooves, thereby absorbing the collision energy and reducing the collision force transmitted to the vehicle, thereby improving the collision safety of the vehicle.

[0080] When two vehicles equipped with energy-absorbing devices collide head-on, the initial state of the collision is as follows: Figure 7 As shown in , at this time, the anti-climbing teeth 402 on the two anti-climbing members 400 are engaged with each other, thereby achieving an anti-climbing effect. Figure 8 As shown in the figure, the collision force is transmitted to the corresponding bulging tearing tube 300 through the two anti-climbing plates 401 respectively, and the guiding surface 2011 on the seat body 201 inflates the bulging tearing tube 300, so that the tearing groove 301 is torn and a plurality of tearing pieces 302 are formed. The guiding surface 2011 guides each tearing piece 302 to enter the corresponding separation cavity 1031 respectively, thereby absorbing the collision energy, which is beneficial to reducing the collision force transmitted to the two vehicles, and further beneficial to improving the collision safety of the vehicle.

[0081] An embodiment of the present application further provides a rail vehicle, comprising a vehicle body and an energy absorbing device as described above, which is arranged on the vehicle body.

[0082] The rail vehicle provided in the embodiments of the present application is beneficial to improving the collision safety of the rail vehicle by providing an energy absorbing device on the vehicle body.

[0083] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the claims.

[0084] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof, which is limited only by the appended claims.

Claims

1. An energy absorbing device, characterized in that: include: A support member (100), the support member (100) being used to be arranged on a vehicle, a receiving cavity (103) being provided in the support member (100), and a mounting opening (104) being provided on the support member (100) and communicating with the receiving cavity (103); A guide member (200), the guide member (200) being arranged on the support member (100) through the mounting opening (104); An expansion and tearing tube (300), one end of the expansion and tearing tube (300) being inserted into the guide member (200), a plurality of tearing grooves (301) being provided on the outer periphery of the expansion and tearing tube (300), the tearing grooves (301) being extended along the axial direction of the expansion and tearing tube (300); The expansion and tearing tube (300) is configured to move toward the guide member (200) when the other end of the expansion and tearing tube (300) is subjected to an axial external force; The guide member (200) is configured to inflate the inflated tearing tube (300) when the inflated tearing tube (300) moves toward the guide member (200), so as to tear the inflated tearing tube (300) into a plurality of tear pieces (302) along the tearing groove (301), and guide each of the tear pieces (302) to be accommodated in the accommodation cavity (103).

2. The energy absorbing device according to claim 1, characterized in that: A plurality of separation ribs (102) are provided in the receiving cavity (103), and the plurality of separation ribs (102) are arranged at intervals along the circumference of the installation opening (104). The receiving cavity (103) is divided into a plurality of separation cavities (1031) by the separation ribs (102), and the separation cavities (1031) are used to correspondingly receive each tearing piece (302).

3. The energy absorbing device according to claim 2, characterized in that: The support member (100) comprises two substrates (101) arranged opposite to each other, and the separation rib (102) is arranged between the two substrates (101).

4. The energy absorbing device according to claim 2, characterized in that: The separation rib (102) and the support member (100) are integrally formed.

5. The energy absorbing device according to any one of claims 1 to 4, characterized in that: The guide member (200) comprises a seat body (201) and a connecting platform (202) provided on the seat body (201), and one end of the expansion and tearing tube (300) is inserted into the connecting platform (202); A guide surface (2011) is formed on the outer periphery of the seat body (201), and the guide surface (2011) is configured to inflate the inflatable tearing tube (300) when the inflatable tearing tube (300) moves toward the guide member (200).

6. The energy absorbing device according to claim 5, characterized in that: A guide protrusion (2021) is provided on the connecting platform (202), and the guide protrusion (2021) is configured to guide the expansion and tearing tube (300) to be inserted into the connecting platform (202).

7. The energy absorbing device according to claim 5, characterized in that: At least a portion of the seat body (201) is disposed in the receiving cavity (103).

8. The energy absorbing device according to any one of claims 1 to 4, characterized in that: It also includes an anti-climbing piece (400), which is arranged at the other end of the bulging and tearing tube (300).

9. The energy absorbing device according to claim 8, characterized in that: The anti-climbing member (400) comprises an anti-climbing plate (401) and a plurality of anti-climbing teeth (402) provided on the anti-climbing plate (401); the anti-climbing plate (401) is connected to the other end of the bulging tearing tube (300).

10. A rail vehicle, characterized in that: The invention comprises a vehicle body and the energy absorbing device according to any one of claims 1 to 9 arranged on the vehicle body.

Images