Anti-collision beam assembly and vehicle

Abstract

The invention relates to an anti-collision beam assembly and a vehicle, the anti-collision beam assembly comprises an anti-collision beam framework, the anti-collision beam framework comprises an anti-collision beam and a mounting base, the anti-collision beam and the mounting base are arranged in a spaced mode, and a telescopic limiting assembly enabling the anti-collision beam to move in the direction close to or away from the mounting base is connected between the anti-collision beam and the mounting base; the rotating arm supporting frames comprise first supporting arms and second supporting arms which are rotationally connected with each other, and the rotating arm supporting frames are symmetrically arranged on the two sides of the telescopic limiting assembly in pairs and rotationally connected with the anti-collision beam and the mounting base; and the elastic buffering pieces are symmetrically arranged on the two sides of the telescopic limiting assembly in pairs and connected with the rotating arm supporting frame and the anti-collision beam framework so as to drive the anti-collision beam to move in the direction away from the mounting base. The elastic force of the elastic buffering piece can absorb and buffer collision impact force, and collision damage is reduced. After the collision is finished, the collision force at the front end of the anti-collision beam disappears, and the whole anti-collision beam assembly can be restored to the initial stable state through the pulling force of the elastic buffering piece.

Description

Technical Field

[0001] The present application relates to the technical field of anti-collision beams for commercial vehicles, and in particular to an anti-collision beam assembly and a vehicle. Background Art

[0002] Among the various functions and characteristics of automobiles, safety plays a pivotal role, especially in recent years, it has attracted more and more attention from manufacturers and customers in the automobile industry. Anti-collision beams are a commonly used safety structural measure in commercial vehicle collision safety. At present, the anti-collision beams in the existing commercial vehicle industry are only fixed to the commercial vehicle frame. By controlling the height of the anti-collision beam from the ground, it prevents the other vehicle from drilling into the bottom of the commercial vehicle during a collision and reduces damage.

[0003] At present, the anti-collision beam in the existing commercial vehicle industry is only fixed to the commercial vehicle frame, and the height of the anti-collision beam is controlled to prevent the other vehicle from drilling into the bottom of the commercial vehicle during a collision to reduce damage. This conventional structure still causes greater collision damage due to the high speed and strong impact force of the vehicle at the moment of collision. Summary of the invention

[0004] The embodiment of the present application provides an anti-collision beam assembly and a vehicle to solve the problem in the related art that when a commercial anti-collision beam collides with an opposing vehicle at a high speed and with a large impact force, it still causes significant collision damage to the opposing vehicle.

[0005] A first aspect of an embodiment of the present application provides an anti-collision beam assembly, comprising:

[0006] An anti-collision beam frame, the anti-collision beam frame comprising an anti-collision beam and a mounting base, the anti-collision beam and the mounting base are arranged at intervals and connected to each other with a telescopic limit assembly that enables the anti-collision beam to move in a direction close to or away from the mounting base;

[0007] A swivel arm support frame, the swivel arm support frame comprises a first support arm and a second support arm rotatably connected to each other, the swivel arm support frame is symmetrically arranged in pairs on both sides of the telescopic limit assembly and is rotatably connected to the anti-collision beam and the mounting base;

[0008] Elastic buffers are symmetrically arranged in pairs on both sides of the telescopic limit assembly and connected to the swing arm support frame and the anti-collision beam frame to drive the anti-collision beam to move in a direction away from the mounting base.

[0009] In some implementations: the mounting base includes a hollow beam extending in the width direction of the vehicle, the hollow beam is provided with double-layered spaced stiffening ribs extending in the length direction of the hollow beam, and the cross-section of the stiffening ribs and the hollow beam is a "mesh"-shaped structure;

[0010] The two ends of the mounting base are respectively detachably connected with a collapse box, the collapse box is away from the side of the anti-collision beam, and the telescopic limit assembly is fixedly connected to the middle position of the mounting base.

[0011] In some implementations: the telescopic limit assembly includes a fixed support fixedly connected to the mounting base, the fixed support extends in a direction close to the anti-collision beam, and one end of the fixed support close to the anti-collision beam is fixedly connected to a limit pin;

[0012] And a sliding support fixedly connected to the middle part of the anti-collision beam, the sliding support extends in a direction close to the mounting base, and the sliding support is provided with an elongated hole slidably connected to the limit pin.

[0013] In some implementations: the sum of the lengths of the first support arm and the second support arm is greater than the maximum length of the telescopic limit assembly after extension, the angle between the first support arm and the second support arm is less than 180°, and the connection between the first support arm and the second support arm protrudes in a direction away from the telescopic limit assembly.

[0014] In some implementations: the ends of the first support arm and the second support arm that are close to each other are rotatably connected via a first rotation axis, the end of the first support arm away from the second support arm is provided with a second rotation axis rotatably connected to the mounting base, and the end of the second support arm away from the first support arm is provided with a third rotation axis rotatably connected to the anti-collision beam.

[0015] In some implementations: a first ear rotatably connected to the second rotating axis is symmetrically provided on the mounting base, a second ear rotatably connected to the third rotating axis is symmetrically provided on the anti-collision beam, and the elastic buffer is connected between the first rotating axis and the telescopic limit assembly.

[0016] In some implementations: the first lug is provided with a first limit portion for limiting the first support arm from rotating toward the direction approaching the telescopic limit assembly, and the second lug is provided with a second limit portion for limiting the second support arm from rotating toward the direction approaching the telescopic limit assembly.

[0017] In some implementations: a sensor for detecting a rotation angle of the first support arm around the second rotation axis is provided on the first support ear, and the sensor is used to be connected to a vehicle controller.

[0018] In some implementations: the elastic buffer includes a tension spring, and a basket bolt connected to both ends of the tension spring and connecting the tension spring between the swing arm support frame and the anti-collision beam frame, and the basket bolt adjusts the tension of the tension spring by adjusting its own length.

[0019] A second aspect of an embodiment of the present application provides a vehicle, including:

[0020] A vehicle chassis, the vehicle chassis comprising a left longitudinal beam and a right longitudinal beam of the frame, wherein the front ends and / or rear ends of the left longitudinal beam and the right longitudinal beam of the frame are connected with a vertical beam extending downward;

[0021] The bottom of the vertical beam is connected to the anti-collision beam assembly described in any of the above embodiments.

[0022] The beneficial effects of the technical solution provided by this application include:

[0023] An embodiment of the present application provides an anti-collision beam assembly and a vehicle. Since the anti-collision beam assembly of the present application is provided with an anti-collision beam frame, the anti-collision beam frame includes an anti-collision beam and a mounting base, the anti-collision beam and the mounting base are arranged at intervals and connected to each other with a telescopic limit assembly that enables the anti-collision beam to move in a direction approaching or away from the mounting base; a pivot arm support frame, the pivot arm support frame includes a first support arm and a second support arm that are rotatably connected to each other, the pivot arm support frames are symmetrically arranged in pairs on both sides of the telescopic limit assembly and are rotatably connected to the anti-collision beam and the mounting base; an elastic buffer, the elastic buffer is symmetrically arranged in pairs on both sides of the telescopic limit assembly and is connected to the pivot arm support frame and the anti-collision beam frame to drive the anti-collision beam to move in a direction away from the mounting base.

[0024] Therefore, when a collision occurs in the anti-collision beam assembly of the present application, the front end of the anti-collision beam is moved toward the mounting base by the impact force, and the anti-collision beam drives the telescopic limit assembly to shrink in the direction close to the mounting base. At this time, the anti-collision beam also drives the first support arm and the second support arm to rotate; the distance between the end of the first support arm and the second support arm that are rotatably connected to each other and the telescopic limit assembly gradually increases, so that the tension of the elastic buffer connected between the rotating arm support frame and the anti-collision beam frame gradually increases, and the elastic force of the elastic buffer can absorb and buffer the impact force of the collision and reduce the collision damage. After the collision, the impact force at the front end of the anti-collision beam disappears, and the tension of the elastic buffer will restore the entire anti-collision beam assembly to its initial stable state. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A top view of the structure of the anti-collision beam assembly of an embodiment of the present application;

[0027] Figure 2 A partial enlarged view of the anti-collision beam assembly of an embodiment of the present application;

[0028] Figure 3 A schematic diagram of the vehicle structure of an embodiment of the present application;

[0029] Figure 4 for Figure 3 Schematic diagram of the structure of the hidden front bumper.

[0030] Reference numerals:

[0031] 10. Anti-collision beam frame; 11. Anti-collision beam; 12. Mounting base; 13. Telescopic limit assembly; 14. Sensor; 15. Fixed support; 16. Limit pin; 17. Sliding support; 18. Long hole;

[0032] 20. Rotating arm support frame; 21. First supporting arm; 22. Second supporting arm; 23. First rotating axis; 24. Second rotating axis; 25. Third rotating axis; 26. First limiting portion; 27. First supporting ear; 28. Second supporting ear;

[0033] 30. Elastic buffer; 31. Extension spring; 32. Turnbuckle bolt; 40. Collapse box;

[0034] 100. Anti-collision beam assembly; 200. Vehicle chassis; 220. Left longitudinal beam of the frame; 210. Right longitudinal beam of the frame; 230. Vertical beam; 300. Front bumper. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. 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.

[0036] The embodiment of the present application provides an anti-collision beam assembly and a vehicle, which can solve the problem in the related art that when a commercial anti-collision beam collides with an opponent's vehicle at a high speed and with a large impact force, it still causes significant collision damage to the opponent's vehicle.

[0037] See also Figure 1 and Figure 2 As shown, the first aspect of an embodiment of the present application provides an anti-collision beam assembly, and the anti-collision beam assembly 100 can be used as a front anti-collision beam of a commercial vehicle, and can also be used as a rear anti-collision beam of a commercial vehicle. When the anti-collision beam assembly 100 is used as a front anti-collision beam, it is installed at the front end of the chassis of the commercial vehicle, and when the anti-collision beam assembly 100 is used as a rear anti-collision beam, it is installed at the rear end of the chassis of the commercial vehicle.

[0038] The embodiment of the present application takes the anti-collision beam assembly 100 as an example for explanation as a front anti-collision beam, and the anti-collision beam assembly 100 includes:

[0039] The anti-collision beam frame 10 includes an anti-collision beam 11 and a mounting base 12 which are spaced apart from each other in the longitudinal direction of the vehicle, and the anti-collision beam 11 is located in front of the mounting base 12. The anti-collision beam 11 and the mounting base 12 are spaced apart from each other and are connected to each other with a telescopic limit assembly 13 which enables the anti-collision beam 11 to move in a direction close to or away from the mounting base 12. The telescopic limit assembly 13 is used to connect the anti-collision beam 11 to the mounting base 12 and enable the anti-collision beam 11 to move forward and backward relative to the mounting base 12.

[0040] The rotating arm support frame 20 includes a first support arm 21 and a second support arm 22 that are rotatably connected to each other. The rotating arm support frames 20 are symmetrically arranged in pairs on both sides of the telescopic limit assembly 13 and are rotatably connected to the anti-collision beam 11 and the mounting base 12. There are two groups of rotating arm support frames 20. The two groups of rotating arm support frames 20 are symmetrical with the telescopic limit assembly 13 as the symmetry axis and are rotatably connected between the anti-collision beam 11 and the mounting base 12. The first support arm 21 and the second support arm 22 rotate adaptively following the change in the distance between the anti-collision beam 11 and the mounting base 12.

[0041] The elastic buffer 30 is symmetrically arranged in pairs on both sides of the telescopic limit assembly 13 and connected to the swing arm support frame 20 and the anti-collision beam frame 10. The elastic buffer 30 is used to drive the anti-collision beam 11 to move away from the mounting base 12. Two groups of elastic buffers 30 are provided. The two groups of elastic buffers 30 are symmetrical with the telescopic limit assembly 13 as the symmetry axis and are connected between the swing arm support frame 20 and the anti-collision beam frame 10.

[0042] The two sets of elastic buffers 30 pull the rotating arm support frame 20 and the anti-collision beam frame 10 together, so that the angle between the first support arm 21 and the second support arm 22 of the rotating arm support frame 20 increases, so that the anti-collision beam 11 extends in a direction away from the mounting base 12. When the anti-collision beam 11 is hit, the anti-collision beam 11 retracts in a direction close to the mounting base 12. At this time, the distance between the anti-collision beam 11 and the mounting base 12 decreases, and the angle between the first support arm 21 and the second support arm 22 decreases. The first support arm 21 and the second support arm 22 stretch the elastic buffer 30, so that the elastic buffer 30 elastically buffers the impact force of the anti-collision beam 11.

[0043] When a vehicle collision accident occurs, for the bumper beam assembly 100 according to the embodiment of the present application, when the front end of the bumper beam 11 is impacted, it moves towards the mounting base 12, and the bumper beam 11 drives the telescopic limiting component 13 to contract along the direction approaching the mounting base 12. At this time, the bumper beam 11 also drives the first support arm 21 and the second support arm 22 to rotate; the distance between the mutually rotatably connected ends of the first support arm 21 and the second support arm 22 and the telescopic limiting component 13 gradually increases.

[0044] The first support arm 21 and the second support arm 22 gradually increase the tension of the elastic buffer 30 connected between the swivel support frame 20 and the bumper beam skeleton 10. The elastic force of the elastic buffer 30 can absorb and buffer the collision impact force, reducing the collision damage. After the collision ends, the impact force at the front end of the bumper beam 11 disappears, and the tension of the elastic buffer 30 will cause the entire bumper beam assembly 100 to return to the initial stable state.

[0045] In some alternative embodiments: Refer to Figures 1 to 4 As shown, the embodiment of the application provides a bumper beam assembly. The mounting base 12 of the bumper beam assembly 100 includes a hollow beam extending along the width direction of the vehicle. In the hollow beam, there are double-layer spaced stiffening ribs extending along the length direction of the hollow beam. The cross-section of the stiffening rib and the hollow beam is a "mu" - shaped structure. The mounting base 12 is made of aluminum alloy, with high structural strength, light weight, and realizing lightweight design.

[0046] Crush boxes 40 are detachably connected to both ends of the mounting base 12 respectively. The crush boxes 40 are located on the side facing away from the bumper beam 11, and the telescopic limiting component 13 is fixedly connected to the middle position of the mounting base 12. The bumper beam 11 also includes a hollow beam extending along the width direction of the vehicle. In the hollow beam, there are double-layer spaced stiffening ribs extending along the length direction of the hollow beam. The cross-section of the stiffening rib and the hollow beam is a "mu" - shaped structure. Both ends of the bumper beam 11 are bent towards the direction approaching the mounting base 12.

[0047] The bumper beam assembly 100 according to the embodiment of the present application is provided with a three - stage buffer energy - absorbing and collapsing structure. The first - stage buffer energy - absorbing and collapsing structure is composed of the bumper beam 11, the mounting base 12, the swivel support frame 20, and the elastic buffer 30. When the bumper beam 11 is impacted by an external force, first, the mounting base 12, the swivel support frame 20, and the elastic buffer 30 provide collision energy - absorbing and buffering for the bumper beam 11 to reduce the excessive impact damage caused by the bumper beam 11 to the other vehicle.

[0048] The second-stage buffering energy absorption and collapse structure is composed of an anti-collision beam 11, a telescopic limiting assembly 13 and a mounting base 12. When the first-stage buffering energy absorption and collapse structure fails and the anti-collision beam 11 continues to be impacted by external force, the anti-collision beam 11 continues to shrink toward the mounting base 12 until the telescopic limiting assembly 13 transfers the impact force of the anti-collision beam 11 to the mounting base 12. The mounting base 12 collapses and deforms and provides collision energy absorption buffering to reduce excessive impact damage caused by the anti-collision beam 11 to the other vehicle.

[0049] The third-stage buffering energy absorption and crushing structure is composed of an anti-collision beam 11, a telescopic limit assembly 13, a mounting base 12, and a crush box 40. When the second-stage buffering energy absorption and crushing structure fails and the anti-collision beam 11 continues to be impacted by external force, the anti-collision beam 11 continues to shrink in the direction approaching the mounting base 12 until the mounting base 12 transfers the impact force of the anti-collision beam 11 to the crush box 40. The crush box 40 collapses and deforms and provides collision energy absorption buffering to reduce excessive impact damage caused by the anti-collision beam 11 to the other vehicle.

[0050] In some optional implementations: See Figure 1 and Figure 2 As shown, the embodiment of the application provides an anti-collision beam assembly, the telescopic limit assembly 13 of the anti-collision beam assembly 100 includes a fixed support 15 fixedly connected to the middle position of the mounting base 12, the fixed support 15 extends toward the direction close to the anti-collision beam 11, and the fixed support 15 is fixedly connected to the limit pin 16 at one end close to the anti-collision beam 11. The fixed support 15 is a steel support formed by welding steel plates.

[0051] And a sliding support 17 fixedly connected to the middle of the anti-collision beam 11, the sliding support 17 extends in a direction close to the mounting base 12, and an elongated hole 18 is provided on the sliding support 17 to be slidably connected to the stop pin 16. The length direction of the elongated hole 18 is parallel to the length direction of the vehicle (i.e., the X direction), the stop pin 16 of the fixed support 15 penetrates into the elongated hole 18 of the sliding support 17, and the telescopic length of the sliding support 17 is limited by the length of the elongated hole 18 to telescope forward and backward relative to the fixed support 15.

[0052] The sliding support 17 of the embodiment of the present application is rotatably connected to the fixed support 15 via the limit pin 16, so that the anti-collision beam 11 can rotate to the left or right relative to the fixed support 15 with the limit pin 16 as the rotation axis, thereby satisfying the protection function of providing collision energy absorption and buffering when the anti-collision beam 11 is offset to the left or right. In addition, the sliding support 17 can telescope forward and backward relative to the fixed support 15 within the length of the elongated hole 18, providing a movement space for collision energy absorption and buffering.

[0053] In some optional implementations: See Figure 1 and Figure 2As shown, the embodiment of the application provides an anti-collision beam assembly, the sum of the lengths of the first support arm 21 and the second support arm 22 of the anti-collision beam assembly 100 is greater than the maximum length of the telescopic limit assembly 13 after extension. The angle between the first support arm 21 and the second support arm 22 is less than 180° and is set at an obtuse angle, and the connection between the first support arm 21 and the second support arm 22 protrudes in a direction away from the telescopic limit assembly 13.

[0054] The sum of the lengths of the first support arm 21 and the second support arm 22 in the embodiment of the present application is greater than the maximum length of the telescopic limit assembly 13 after extension, so that the angle between the first support arm 21 and the second support arm 22 is less than 180°, preventing the angle between the first support arm 21 and the second support arm 22 from being at 180° when the sum of the lengths of the first support arm 21 and the second support arm 22 is equal to the maximum length of the telescopic limit assembly 13 after extension, resulting in a movement blind spot.

[0055] The connection between the first support arm 21 and the second support arm 22 is designed to protrude in the direction away from the telescopic limit assembly 13. Therefore, when the anti-collision beam 11 is hit by an external force, the connection between the first support arm 21 and the second support arm 22 is gradually away from the telescopic limit assembly 13. Therefore, the first support arm 21 and the second support arm 22 can tension the elastic buffer 30, so that the tension of the elastic buffer 30 gradually increases to provide a protective effect of collision energy absorption and buffering.

[0056] In some optional implementations: See Figure 1 and Figure 2 As shown, the embodiment of the application provides an anti-collision beam assembly, in which the first support arm 21 and the second support arm 22 of the anti-collision beam assembly 100 are rotatably connected at one end close to each other via a first rotation axis 23. The end of the first support arm 21 away from the second support arm 22 is provided with a second rotation axis 24 rotatably connected to the mounting base 12, and the end of the second support arm 22 away from the first support arm 21 is provided with a third rotation axis 25 rotatably connected to the anti-collision beam 11.

[0057] A first lug 27 rotatably connected to the second rotating shaft 24 is symmetrically provided on the mounting base 12, a second lug 28 rotatably connected to the third rotating shaft 25 is symmetrically provided on the anti-collision beam 11, and an elastic buffer 30 is connected between the first rotating shaft 23 and the telescopic limit assembly 13. A first limit portion 26 for limiting the rotation of the first support arm 21 toward the direction approaching the telescopic limit assembly 13 is provided on the first lug 27, and a second limit portion for limiting the rotation of the second support arm 22 toward the direction approaching the telescopic limit assembly 13 is provided on the second lug 28.

[0058] The first support arm 21 and the second support arm 22 of the embodiment of the present application are connected to each other at one end thereof by a first rotation axis 23, and the first support arm 21 is provided with a second rotation axis 24 that is connected to the mounting base 12 at one end thereof away from the second support arm 22, and the second support arm 22 is provided with a third rotation axis 25 that is connected to the anti-collision beam 11 at one end thereof away from the first support arm 21, so that the first support arm 21 and the second support arm 22 swing in the plane formed by the X-axis and the Y-axis. The first support arm 21 and the second support arm 22 swing in opposite directions.

[0059] The axes of the first rotating shaft 23, the second rotating shaft 24, the third rotating shaft 25 and the stop pin 16 are all parallel to the Z-axis direction, so that the anti-collision beam 11, the rotating arm support frame 20 and the elastic buffer 30 are all swinging in the plane formed by the X-axis and the Y-axis. The elastic buffer 30 is connected between the first rotating shaft 23 and the fixed support 15. When the first support arm 21 swings around the second rotating shaft 24 in a direction away from the telescopic stop assembly 13, the first support arm 21 drives the elastic buffer 30 to form a tension force to prevent the first support arm 21 from continuing to rotate.

[0060] The first limiting portion 26 on the first support ear 27 and the second limiting portion on the second support ear 28 are used to limit the first support arm 21 and the second support arm 22 from swinging in the direction close to the telescopic limiting assembly 13, thereby keeping the angle between the first support arm 21 and the second support arm 22 in an obtuse state. This prevents the first support arm 21 and the second support arm 22 from swinging in the direction close to the telescopic limiting assembly 13, and preventing the angle between the first support arm 21 and the second support arm 22 from being at 180° and causing a dead angle of movement.

[0061] In some optional implementations: See Figure 1 and Figure 2 As shown, the embodiment of the application provides an anti-collision beam assembly, and the first lug 27 of the anti-collision beam assembly 100 is provided with a sensor 14 for detecting the rotation angle of the first support arm 21 around the second rotation axis 24. The sensor 14 is preferably, but not limited to, an angle sensor or a position sensor. The sensor 14 is used to connect to the vehicle controller. When the vehicle controller receives the detection signal of the sensor 14, the vehicle controller performs emergency braking on the vehicle, reduces the vehicle speed, and further reduces the collision damage. The sensor 14 is located further away from the anti-collision beam 11, and when the anti-collision beam 11 is hit by an external force, the collision damage to the sensor 14 is avoided.

[0062] In some optional implementations: See Figure 1 and Figure 2As shown, an embodiment of the application provides an anti-collision beam assembly, wherein the elastic buffer member 30 of the anti-collision beam assembly 100 includes a tension spring 31, and a basket bolt 32 connected to both ends of the tension spring 31 and connecting the tension spring 31 between the swing arm support frame 20 and the anti-collision beam frame 10, and the basket bolt 32 adjusts the tension of the tension spring 31 by adjusting its own length.

[0063] See also Figure 3 and Figure 4 As shown, a second aspect of an embodiment of the present application provides a vehicle, including:

[0064] The vehicle chassis 200 includes a left longitudinal beam 220 and a right longitudinal beam 210. The front ends of the left longitudinal beam 220 and the right longitudinal beam 210 are connected with a vertical beam 230 extending downward, and the front ends of the vertical beam 230 are connected with a front bumper 300; the bottom of the vertical beam 230 is connected with the anti-collision beam assembly 100 described in any of the above embodiments.

[0065] How it works

[0066] An embodiment of the present application provides an anti-collision beam assembly and a vehicle. Since the anti-collision beam assembly 100 of the present application is provided with an anti-collision beam frame 10, the anti-collision beam frame 10 includes an anti-collision beam 11 and a mounting base 12, the anti-collision beam 11 and the mounting base 12 are arranged at intervals and connected to each other with a telescopic limit assembly 13 that enables the anti-collision beam 11 to move in a direction close to or away from the mounting base 12; a pivot arm support frame 20, the pivot arm support frame 20 includes a first support arm 21 and a second support arm 22 that are rotatably connected to each other, the pivot arm support frame 20 is symmetrically arranged in pairs on both sides of the telescopic limit assembly 13 and is rotatably connected to the anti-collision beam 11 and the mounting base 12; an elastic buffer 30, the elastic buffer 30 is symmetrically arranged in pairs on both sides of the telescopic limit assembly 13 and is connected to the pivot arm support frame 20 and the anti-collision beam frame 10 to drive the anti-collision beam 11 to move in a direction away from the mounting base 12.

[0067] Therefore, when a collision occurs in the anti-collision beam assembly 100 of the present application, the front end of the anti-collision beam 11 is subjected to the impact force and moves toward the mounting base 12, and the anti-collision beam 11 drives the telescopic limit assembly 13 to shrink in the direction close to the mounting base 12. At this time, the anti-collision beam 11 also drives the first support arm 21 and the second support arm 22 to rotate; the distance between the end of the first support arm 21 and the second support arm 22 that are mutually rotatably connected and the telescopic limit assembly 13 gradually increases, so that the tension of the elastic buffer 30 connected between the rotating arm support frame 20 and the anti-collision beam frame 10 gradually increases, and the elastic force of the elastic buffer 30 can absorb and buffer the impact force of the collision and reduce the collision damage. After the collision, the impact force at the front end of the anti-collision beam 11 disappears, and the tension of the elastic buffer 30 will restore the entire anti-collision beam assembly 100 to its initial stable state.

[0068] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0069] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0070] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An anti-collision beam assembly, characterized in that: Comprising: A bumper beam skeleton (10), the bumper beam skeleton (10) includes a bumper beam (11) and a mounting base (12), the bumper beam (11) and the mounting base (12) are spaced apart and connected to each other by a telescopic limiting component (13) that enables the bumper beam (11) to move in a direction approaching or away from the mounting base (12); A swing arm support frame (20), the swing arm support frame (20) includes a first support arm (21) and a second support arm (22) that are rotatably connected to each other, the swing arm support frame (20) is symmetrically arranged in pairs on both sides of the telescopic limiting component (13) and is rotatably connected to the bumper beam (11) and the mounting base (12); Elastic buffer members (30), the elastic buffer members (30) are symmetrically arranged in pairs on both sides of the telescopic limiting component (13) and are connected to the swing arm support frame (20) and the bumper beam skeleton (10) to drive the bumper beam (11) to move in a direction away from the mounting base (12).

2. The bumper beam assembly according to claim 1, characterized in that: The mounting base (12) includes a hollow beam extending in the width direction of the vehicle, and double-layer spaced stiffening ribs extending in the length direction of the hollow beam are provided in the hollow beam, and the cross-section of the stiffening rib and the hollow beam is a "mesh" structure; Crush boxes (40) are detachably connected to both ends of the mounting base (12) respectively, the crush boxes (40) are located on the side of the mounting base (12) facing away from the bumper beam (11), and the telescopic limiting component (13) is fixedly connected to the middle position of the mounting base (12).

3. The bumper beam assembly according to claim 1 or 2, characterized in that: The telescopic limiting component (13) includes a fixed support (15) fixedly connected to the mounting base (12), the fixed support (15) extends in a direction approaching the bumper beam (11), and a limiting pin (16) is fixedly connected to one end of the fixed support (15) close to the bumper beam (11); And a sliding support (17) fixedly connected to the middle position of the bumper beam (11), the sliding support (17) extends in a direction approaching the mounting base (12), and a long hole (18) for sliding connection with the limiting pin (16) is provided on the sliding support (17).

4. The bumper beam assembly according to claim 1, characterized in that: The sum of the lengths of the first support arm (21) and the second support arm (22) is greater than the maximum length after the telescopic limiting component (13) extends, the included angle between the first support arm (21) and the second support arm (22) is less than 180°, and the connection part between the first support arm (21) and the second support arm (22) protrudes in a direction away from the telescopic limiting component (13).

5. The bumper beam assembly according to claim 1 or 4, characterized in that: The ends of the first support arm (21) and the second support arm (22) that are close to each other are rotatably connected via a first rotating shaft (23); the end of the first support arm (21) that is away from the second support arm (22) is provided with a second rotating shaft (24) that is rotatably connected to the mounting base (12); and the end of the second support arm (22) that is away from the first support arm (21) is provided with a third rotating shaft (25) that is rotatably connected to the anti-collision beam (11).

6. The anti-collision beam assembly according to claim 5, characterized in that: The mounting base (12) is symmetrically provided with a first lug (27) rotatably connected to the second rotating shaft (24), the anti-collision beam (11) is symmetrically provided with a second lug (28) rotatably connected to the third rotating shaft (25), and the elastic buffer (30) is connected between the first rotating shaft (23) and the telescopic limit assembly (13).

7. The anti-collision beam assembly according to claim 6, characterized in that: The first support ear (27) is provided with a first limiting portion (26) for limiting the first support arm (21) from rotating in a direction approaching the telescopic limiting assembly (13), and the second support ear (28) is provided with a second limiting portion for limiting the second support arm (22) from rotating in a direction approaching the telescopic limiting assembly (13).

8. The anti-collision beam assembly according to claim 6, characterized in that: The first support ear (27) is provided with a sensor (14) for detecting the rotation angle of the first support arm (21) around the second rotation axis (24), and the sensor (14) is used to connect to a vehicle controller.

9. The anti-collision beam assembly according to claim 6, characterized in that: The elastic buffer (30) comprises a tension spring (31) and a turnbuckle bolt (32) connected to both ends of the tension spring (31) and connecting the tension spring (31) between a swing arm support frame (20) and an anti-collision beam frame (10); the turnbuckle bolt (32) adjusts the tension of the tension spring (31) by adjusting its own length.

10. A vehicle, characterized in that: include: A vehicle chassis (200), the vehicle chassis (200) comprising a left longitudinal beam (220) and a right longitudinal beam (210) of the frame, the front ends and / or rear ends of the left longitudinal beam (220) and the right longitudinal beam (210) of the frame being connected with a vertical beam (230) extending downward; The bottom of the vertical beam (230) is connected to the anti-collision beam assembly (100) according to any one of claims 1 to 9.

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