CN217778564U - Shank crossbeam assembly and vehicle - Google Patents

Abstract

The utility model discloses a shank crossbeam assembly and vehicle, shank crossbeam assembly includes: a shank cross-beam; the reinforcement part is connected to the end part of the lower leg beam, and at least part of the reinforcement part is arranged in a forward protruding mode relative to the lower leg beam; the energy-absorbing box assembly is connected to the rear side of the shank cross beam and is used for being connected with the auxiliary frame. The utility model discloses a shank crossbeam assembly, the simple structure of shank crossbeam, it is lower to set up the cost, and sets up the rib and do benefit to the structural strength who promotes the shank crossbeam on the shank crossbeam, optimizes the moment of flexure score of shank crossbeam, realizes the effective protection to the pedestrian, and the practicality is strong.

Description

Shank crossbeam assembly and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle manufacturing technique and specifically relates to a shank beam assembly and vehicle that has this shank beam assembly are related to.

Background

In the annual traffic accidents, the legs are the parts with the highest disability rate when people and vehicles collide. In the related art, the lower leg beam assembly comprises at least two lower leg beams, the structure is complex, the lower leg beams positioned on the front side cannot well protect pedestrians, and an improved space exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a shank beam assembly, which has a simple structure and can effectively protect the leg of a pedestrian.

According to the utility model discloses shank crossbeam assembly, include: a shank cross-beam; the reinforcement part is connected to the end part of the lower leg beam, and at least part of the reinforcement part is arranged in a forward protruding mode relative to the lower leg beam; the energy-absorbing box assembly is connected to the rear side of the shank cross beam and used for connecting the shank cross beam with the auxiliary frame.

According to the utility model discloses shank crossbeam assembly, shank crossbeam's simple structure sets up the cost lower, and sets up the rib and do benefit to the structural strength who promotes the shank crossbeam on the shank crossbeam, optimizes the moment of flexure score of shank crossbeam, realizes the effective protection to the pedestrian, and the practicality is strong.

According to the utility model discloses shank crossbeam assembly of some embodiments, the shank crossbeam include the roof beam body and connect in the extension at roof beam body both ends, the extension for the roof beam body sets up towards the slope of back, the extension and/or the roof beam body with the rib links to each other, energy-absorbing box subassembly with the extension links to each other.

According to the utility model discloses shank crossbeam assembly of some embodiments, the shank crossbeam is the punching press plate, rib integrated into one piece in on the shank crossbeam.

According to the utility model discloses shank crossbeam assembly of some embodiments, the rib is the punching press plate, just the rib with shank crossbeam laminating and relatively fixed.

According to the utility model discloses shank crossbeam assembly of some embodiments, the rib includes connecting plate and extension board, the connecting plate with shank crossbeam laminating and relatively fixed, the extension board with the connecting plate links to each other and extends the front side of shank crossbeam.

According to some embodiments of the present invention, the shank beam assembly is provided with a connecting hole for connecting with a front bumper through a connecting member.

According to the utility model discloses shank crossbeam assembly of some embodiments, energy-absorbing box subassembly includes energy-absorbing box and shank roof beam linking bridge, the one end of energy-absorbing box with the shank crossbeam links to each other and the other end with shank roof beam linking bridge links to each other, shank roof beam linking bridge deviates from the one end of energy-absorbing box be used for with the sub vehicle frame links to each other.

According to the utility model discloses shank crossbeam assembly of some embodiments, the energy-absorbing box has energy-absorbing chamber and rear end and opens, the front end of shank roof beam linking bridge extends in the energy-absorbing box and with energy-absorbing box detachably links to each other.

According to the utility model discloses shank crossbeam assembly of some embodiments, be equipped with first location portion on the shank roof beam linking bridge, be equipped with second location portion on the energy-absorbing box, first location portion with second location portion mutually supports so that the energy-absorbing box with shank roof beam linking bridge relatively fixed.

The utility model also provides a vehicle.

According to the utility model discloses the vehicle of embodiment is provided with any one of above-mentioned embodiment shank crossbeam assembly.

The vehicle and the above-mentioned lower leg beam assembly have the same advantages over the prior art, and are not described in detail herein.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a calf beam assembly according to an embodiment of the invention;

fig. 2 is a schematic structural view of a reinforcement according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a shank cross-beam according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a first bracket according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a second bracket according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a third bracket according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a fourth bracket according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of a lower leg beam assembly mounted to a subframe according to an embodiment of the present invention;

fig. 9 is a schematic cross-sectional view of a lower leg beam assembly according to further embodiments of the present invention;

FIG. 10 is an assembled cross-sectional view of a calf beam attachment bracket and energy absorption box according to an embodiment of the invention;

FIG. 11 is a partial schematic view of a calf beam attachment bracket and energy-absorbing box according to some embodiments of the invention;

FIG. 12 is an assembled cross-sectional view of a lower leg beam attachment bracket and an energy absorption box according to further embodiments of the present invention.

Reference numerals:

a lower leg beam assembly 100 is provided,

a shank beam 1, a beam body part 11, a reinforcing rib 111, an extension part 12, a main body plate 13, a turnover plate 14,

the reinforcing part 2, the connecting plate 21, the extension plate 22, the connecting hole 23, the fitting groove 24,

the energy absorption box 3, a first bracket 31, a second bracket 32, a weakening groove 33, an extension flanging 34, a limiting groove 35, a clamping bulge 36,

a shank beam connecting bracket 4, a third bracket 41, a fourth bracket 42, a groove a, a fixing hole b, a limiting bulge 43, a clamping interface 44, a connecting bolt 5,

the subframe 200.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The calf beam assembly 100 according to the embodiment of the present invention is described below with reference to fig. 1 to 12, and the calf beam assembly 100 has a simple structure, can effectively protect pedestrians, and is applicable to different height types of vehicle models, and has strong practicability.

Wherein, the lower leg beam assembly 100 is suitable for being installed at the front side of the bottom of the frame, so as to protect pedestrians on the road during driving. As shown in fig. 8, the lower leg beam assembly 100 is installed at the bottom of the front side of the frame, so that when the vehicle contacts with a pedestrian, the lower leg beam assembly 100 can contact with the lower leg position of the pedestrian, and collapse deformation is generated in the contact process of the lower leg beam assembly 100 and the lower leg of the pedestrian to buffer a part of impact force, thereby preventing the frame from directly impacting the lower leg position of the pedestrian, and further protecting the lower leg position of the pedestrian.

As shown in fig. 1-9, a lower leg beam assembly 100 according to an embodiment of the present invention includes: shank crossbeam 1, reinforcing part 2, energy-absorbing box subassembly. As shown in fig. 8, the lower leg beam assembly 100 is attached to the front side of the subframe 200.

The reinforcement portion 2 is connected to an end portion of the lower leg beam 1, and at least a part of the reinforcement portion 2 is provided to protrude forward relative to the lower leg beam 1. Wherein, when actual design, can set up reinforcing part 2 into two, two reinforcing parts 2 are located the tip at the both ends of shank crossbeam 1 respectively, improve the moment of flexure of the tip of shank crossbeam 1 through reinforcing part 2, so that the setting up of reinforcing part 2 promotes the structural strength of shank crossbeam 1, improve the moment of flexure score of shank crossbeam 1, when pedestrian and vehicle contact, the pedestrian can contact in advance with reinforcing part 2 on the shank crossbeam 1, so that reinforcing part 2 cooperates the crumple absorption that realizes great impact force with shank crossbeam 1 jointly, thereby reinforcing the protection effect to the pedestrian.

After being installed on the frame, the two reinforcing parts 2 are positioned at two corner positions of the front side of the frame, so that the two reinforcing parts 2 can respectively protect pedestrians from the left front part or the right front part of the vehicle during the running process of the vehicle, the end parts of the shank cross beams 1 can be prevented from impacting the pedestrians too rigidly, and the safety of the pedestrians is ensured. During actual design, the reinforcing part 2 and the shank beam 1 can be set into two independent structural parts and fixedly connected; or the reinforcement part 2 can be provided as a single piece, that is, the reinforcement part 2 is integrally formed on the lower leg beam 1, that is, a separate reinforcement structure is not required to be added, for example, the reinforcement part 2 is integrated on the front side of the lower leg beam 1.

The energy absorption box assembly is connected to the rear side of the shank beam 1 and used for connecting the shank beam 1 with the auxiliary frame 200, wherein at least part of the energy absorption box assembly can be of a hollow box-shaped structure, so that the energy absorption box assembly can be deformed under compression to achieve the effect of energy absorption and crumpling.

From this, after installing shank crossbeam assembly 100 in the vehicle, the energy-absorbing box subassembly is connected between shank crossbeam 1 and sub vehicle frame 200 to when shank crossbeam 1 and pedestrian's shank contact, can squeeze the energy-absorbing box subassembly and contract for sub vehicle frame 200 and warp, and then absorb the impact to pedestrian's shank position department at the in-process that warp, thereby do benefit to the absorption impact, prevent to produce too violent striking to pedestrian's shank portion.

According to the utility model discloses shank crossbeam assembly 100, shank crossbeam 1's simple structure sets up the cost lower, and sets up the reinforcement 2 on shank crossbeam 1 and do benefit to the structural strength who promotes shank crossbeam 1, optimizes shank crossbeam 1's moment of flexure score, realizes the effective protection to the pedestrian, and the practicality is strong.

In some embodiments, the calf beam 1 includes a beam body 11 and an extension 12.

As shown in fig. 1 and 3, the number of the extending portions 12 is two, and the two extending portions 12 are respectively connected to two ends of the beam body 11, and during actual design, the extending portions 12 and the beam body 11 are of an integrally formed structure to increase the overall structural strength of the calf beam 1, prevent the problem of structural fracture at the joint of the extending portions 12 and the beam body 11 in the using process, and improve the structural safety of the calf beam 1.

As shown in fig. 3, the extension portion 12 is disposed to be inclined rearward with respect to the beam body portion 11 so that the overall structure of the lower leg beam 1 is arcuate, that is, the extension portion 12 and the beam body portion 11 form a bent structure, whereby when a pedestrian appears in the left front or right front of the vehicle, the end portion of the lower leg beam 1 is not directly inserted into the pedestrian in a direction perpendicular to the pedestrian, but is contacted with the pedestrian at a certain inclination angle at the extension portion 12, thereby enhancing protection of the pedestrian.

The extension part 12 and/or the beam body part 11 are connected with the reinforcement part 2, that is, the reinforcement part 2 can be connected with the extension part 12 and also can be connected with the end part of the reinforcement part 2, or the reinforcement part 2 is connected with the beam body part 11 and the extension part 12 at the same time, as shown in fig. 1, the reinforcement part 2 is connected with the extension part 12 and the inner end part of the reinforcement part 2 is connected with the end part of the beam body part 11, thereby being beneficial to increasing the connection strength of the reinforcement part 2 and the calf beam 1 and improving the bending moment score of the calf beam 1.

The energy-absorbing box assembly is connected with the extension portion 12, so that the impact force received by the extension portion 12 can be transmitted to the energy-absorbing box assembly, the impact force is absorbed through the deformation of the energy-absorbing box assembly, and the energy-absorbing effect of the lower leg beam assembly 100 is guaranteed. Such as by welding the front end of the energy absorption box assembly to the extension 12.

In some embodiments, the beam body 11 is provided with a reinforcing rib 111, and the reinforcing rib 111 is beneficial to improving the structural strength of the beam body 11. Among them, as shown in fig. 1, the reinforcing ribs 111 are configured in an elongated shape, and the reinforcing ribs 111 are provided extending in the longitudinal direction of the beam body portion 11 to increase the structural strength of the beam body portion 11 at various positions in the longitudinal direction.

In some embodiments, the shank beam 1 is a stamped plate, that is, the shank beam 1 is stamped by a sheet metal part, the structure is simple, the forming mode is easy to realize, the reinforcing rib 111 can be stamped at the middle part of the shank beam 1, and the processing difficulty is low. Wherein, forming shank crossbeam 1 through sheet metal component punching press, compare in pipy shank crossbeam 1, shaping efficiency is higher, and the processing cost is lower.

The shank beam 1 comprises a main body plate 13 and a folded plate 14, the folded plate 14 is connected with the main body plate 13 in a bending mode, and the main body plate 13 and the folded plate 14 are formed in a stamping mode without arranging a complex processing die. And when actually connected, the main body plate 13 can be connected with the reinforcing part 2, so that the reinforcing part 2 and the shank beam 1 can be integrally installed on the frame; the flap plate 14 and/or the main body plate 13 are connected to the energy-absorbing box assembly such that the flap plate 14 can transfer impact energy to the energy-absorbing box assembly to achieve the transfer and collapse of the impact force.

During actual design, the folding plate 14 is connected to the rear side of the main body plate 13, the folding plate 14 is turned upwards relative to the main body plate 13, when the folding plate is connected, the plane where the main body plate 13 is located is parallel to the horizontal plane or the included angle between the plane and the horizontal plane is smaller, the main body plate 13 is attached to the plate surface of the reinforcing part 2, and meanwhile, the folding plate 14 is attached to and welded with the front end of the energy absorption box assembly to form an integral structure. The reinforcing ribs 111 are provided on the main body plate 13.

In some embodiments, the shank cross beam 1 is a stamped plate, the reinforcement part 2 is integrally formed on the shank cross beam 1, as shown in fig. 9, the reinforcement part 2 and the shank cross beam 1 are integrally formed, the end part of the shank cross beam assembly 100 is configured to have a U-shaped cross section, the bottom and the rear part of the shank cross beam assembly 100 are formed as the shank cross beam 1, and the front part of the shank cross beam assembly 100 is formed as the reinforcement part 2, thereby being beneficial to improving the connection strength of the reinforcement part 2 and the shank cross beam 1, and the reinforcement part 2 and the shank cross beam 1 are not easy to break.

Wherein, integrate on shank crossbeam 1 with shank crossbeam 1 integrated into one piece with reinforcement 2 to make the two accessible same structure shaping, for example shank crossbeam 1 and reinforcement 2 are a whole board stamping forming, reinforcement 2 and shank crossbeam 1 need not be formed separately promptly, do benefit to and improve shaping efficiency.

In some embodiments, the reinforcement 2 is a stamped plate, that is, the reinforcement 2 can also be formed by stamping a sheet metal part, the structure is simple, the forming mode is easy to realize, and the processing difficulty and the processing cost are both low.

And when actually installing, with reinforcement 2 and shank crossbeam 1 laminating and relatively fixed, carry out fixed connection with the surface laminating of reinforcement 2 and shank crossbeam 1 and with the welded mode for the surface laminating of shank crossbeam 1, from this, reinforcement 2 and shank crossbeam 1 can be shaped respectively, do benefit to the shaping degree of difficulty that reduces single structure spare.

In some embodiments, the reinforcing part 2 includes a connecting plate 21 and an extending plate 22, the connecting plate 21 and the extending plate 22 are connected in a bending manner, and both the connecting plate 21 and the extending plate 22 are formed in a stamping manner without providing a complicated processing die.

The connecting plate 21 is connected to the lower leg beam 1, that is, in the actual connection, the connecting plate 21 is fixedly attached to the lower leg beam 1, for example, a surface of the connecting plate 21 is fixedly attached to a surface of the main body plate 13 by welding. The extension plate 22 is connected with the connecting plate 21 and extends to the front side of the lower leg beam 1, namely, the extension plate 22 is connected to the front side edge of the connecting plate 21, and the extension plate 22 extends forward relative to the connecting plate 21, so that when a pedestrian contacts with a vehicle, the extension plate 22 can contact with the pedestrian in advance, and after a certain impact force is received, the extension plate 22 can be bent and deformed relative to the connecting plate 21, so that a certain impact force is buffered, and the protection effect on the pedestrian is enhanced.

In some embodiments, the extension plate 22 and/or the connection plate 21 are provided with connection holes 23, and the connection holes 23 are used to connect with the front bumper through connection members, so that the reinforcement portion 2 can be detachably connected with the front bumper, thereby enabling the reinforcement portion 2 to be adapted to vehicle frames of vehicle models of different heights. Therefore, the lower leg beam assembly 100 can be suitable for front bumpers of different height types, and the applicability of the whole structure in different types of vehicle types is enhanced.

As shown in fig. 1 and 2, the extension plate 22 is provided with a plurality of connection holes 23, and the plurality of connection holes 23 are distributed in the length direction of the extension plate 22 at intervals, so that the extension plate 22 can be connected and fixed with the front bumper at a plurality of positions, the connection stability of the reinforcement part 2 and the front bumper is enhanced, and the long-term use is facilitated.

And, a fitting groove 24 may be provided on the extension plate 22, and the fitting groove 24 may be used to fit with a protruding structure on the front bumper to increase the connection strength of the reinforcement portion 2 with the front bumper.

In some embodiments, the energy-absorbing box assembly comprises an energy-absorbing box 3 and a lower leg beam connecting bracket 4, one end of the energy-absorbing box 3 is connected with the lower leg beam 1, the other end of the energy-absorbing box is connected with the lower leg beam connecting bracket 4, and one end of the lower leg beam connecting bracket 4, which is far away from the energy-absorbing box 3, is used for being connected with the auxiliary frame 200.

Specifically, the energy-absorbing box 3 is connected to the rear side of the lower leg beam 1, the lower leg beam connecting bracket 4 is connected to the rear side of the energy-absorbing box 3 and is used for being connected with the auxiliary frame 200, wherein the energy-absorbing box 3 is connected between the lower leg beam 1 and the lower leg beam connecting bracket 4, the energy-absorbing box 3 is of a hollow box-shaped structure, and the energy-absorbing box 3 can deform under compression to achieve the effect of energy absorption and crumpling.

From this, after installing shank crossbeam assembly 100 in the vehicle, energy-absorbing box 3 and shank roof beam linking bridge 4 are connected between shank crossbeam 1 and sub vehicle frame 200, with when shank crossbeam 1 contacts with pedestrian's shank, can squeeze energy-absorbing box 3, so that energy-absorbing box 3 contracts for shank roof beam linking bridge 4 and sub vehicle frame 200 and warp, and then absorb the impact to pedestrian's shank position department at the in-process that warp, thereby do benefit to and absorb the impact, prevent to produce too violent striking to pedestrian's shank.

In some embodiments, the front end face of the energy-absorbing box 3 is connected with the folded plate 14 of the calf beam 1 in an abutting manner, and the lower side edge of the front end of the energy-absorbing box 3 is further provided with an extending flange 34 protruding forwards, and the extending flange 34 extends to the bottom of the main body plate 13 to be connected with the main body part 13 in an abutting manner.

In some embodiments, the energy-absorbing box 3 has an energy-absorbing cavity and has an open rear end, and when actually designed, the energy-absorbing box 3 and the lower leg beam connecting bracket 4 can be both configured to be hollow structures, and the front end of the lower leg beam connecting bracket 4 extends into the energy-absorbing box 3 and is detachably connected with the energy-absorbing box 3, so that after the two are connected and a pedestrian is stressed in contact with the lower leg beam assembly 100, the energy-absorbing box 3 and the lower leg beam connecting bracket 4 can move relatively and collapse, thereby enhancing the energy-absorbing effect.

In other words, the energy-absorbing box 3 is sleeved outside the lower leg beam connecting bracket 4, and the energy-absorbing box 3 is detachably connected with the lower leg beam connecting bracket 4. As shown in fig. 1, the energy-absorbing box 3 is configured as a hollow box-shaped structure, the front end of the energy-absorbing box 3 is connected with the lower leg beam 1, and the rear end of the energy-absorbing box 3 is open, meanwhile, the front end of the lower leg beam connecting bracket 4 is connected with the rear end of the energy-absorbing box 3, and the front end of the lower leg beam connecting bracket 4 extends into the energy-absorbing cavity of the energy-absorbing box 3 and is connected and fixed through a connecting piece after extending to a fixed position.

Specifically, during actual design, the energy absorption box 3 can be provided with fixing holes b, and the shank beam connecting bracket 4 is also provided with fixing holes b, so that the fixing holes b of the energy absorption box and the shank beam connecting bracket are arranged just opposite to each other, and connection and fixation are realized through connecting pieces penetrating through the fixing holes b, and the energy absorption box is simple in structure and convenient to install.

Therefore, when the shank beam 1 is in collision contact with a pedestrian, the energy absorption box 3 is stressed and deformed, and the shank beam connecting bracket 4 can further extend into the energy absorption box 3 under the action of impact force, so that the energy absorption by collapse is realized through the relative movement of the shank beam and the energy absorption.

In some embodiments, the lower leg beam connecting bracket 4 is provided with a first positioning portion, and the energy absorption box 3 is provided with a second positioning portion, and the first positioning portion and the second positioning portion are matched with each other to fixedly connect the energy absorption box 3 to the lower leg beam connecting bracket 4.

Wherein, the first positioning part can be matched with the second positioning part in a limiting way. Specifically, one of the first positioning portion and the second positioning portion may be configured as a limiting groove 35, and the other one may be configured as a limiting protrusion 43, so that the limiting protrusion 43 extends into the limiting groove, thereby realizing the rapid clamping of the energy-absorbing box 3 and the lower leg beam connecting bracket 4, and after the clamping, the energy-absorbing box may be fixed by a connecting member penetrating through the fixing hole b, as shown in fig. 10, the front end of the lower leg beam connecting bracket 4 extends into the energy-absorbing box 3, and the lower leg beam connecting bracket may be connected and fixed by a connecting member penetrating in the up-down direction. As shown in fig. 10, the connecting member may be configured as a connecting bolt 5.

In actual design, as shown in fig. 11, a limiting protrusion 43 is provided on the lower side surface of the lower leg beam connecting bracket 4, a limiting groove 35 is provided at the rear end of the energy-absorbing box 3, and the limiting groove 35 is open rearward, so that when the lower leg beam connecting bracket 4 is extended forward into the energy-absorbing box 3, the limiting protrusion 43 is extended forward into the limiting groove 35 to realize the clamping and fixing of the lower leg beam connecting bracket 4 and the energy-absorbing box 3.

Wherein, the opening width of spacing groove 35 can set up to the gradual change, if set up the opening width of spacing groove 35 to reduce gradually towards the back, so that spacing arch 43 can press from both sides tightly in spacing groove 35, and shank roof beam linking bridge 4 is connected fixedly with sub vehicle frame 200, thereby to shank crossbeam 1X to, Y to, around Z to the direction of rotation play accurate positioning action, the assembler can simply directly pass the connecting piece from the mounting hole, avoid constantly adjusting shank crossbeam 1 to appropriate position, save assembly beat and intensity of labour, above structure only need a celebrity can accomplish the assembly, and the structure needs more than two at least or definite value special frock can accomplish in the past, reduce the installation degree of difficulty.

And, the limiting groove 35 may be formed by blanking.

In other embodiments, the first and second detents can be snap fit, such that one of the first and second detents is configured as a snap projection 36 and the other is configured as a snap interface 44, such that the energy absorber box 3 can be snapped into the lower leg beam attachment bracket 4. As shown in fig. 12, the rear end of the energy-absorbing box 3 is provided with a clamping protrusion 36, the side wall of the lower leg beam connecting bracket is provided with a clamping opening 44, and when the lower leg beam connecting bracket 4 extends forwards into the energy-absorbing box 3, the clamping protrusion 36 extends into the clamping opening 44, so that clamping fixation is realized, and the energy-absorbing box is simple in structure and convenient to install.

Wherein, can set up weakening groove 33 on at least one of energy-absorbing box 3 and shank roof beam linking bridge 4, as shown in figure 1, can set up weakening groove 33 on the upside and the downside of energy-absorbing box 3, and weakening groove 33 is a plurality of, and a plurality of weakening grooves 33 are at a distance from the distribution in the length direction of energy-absorbing box 3 to reinforcing energy-absorbing effect of energy-absorbing box 3.

In some embodiments, the crash box 3 comprises a first bracket 31 and a second bracket 32, i.e. the two-part structure of the crash box 3 can be formed separately and, when actually installed, joined as a unitary structure. Wherein, both the first bracket 31 and the second bracket 32 can be formed by punching, as shown in fig. 4 and 5, the first bracket 31 and the second bracket 32 are configured as plate-shaped members and are punched to form the groove a, so that when being installed, the first bracket 31 is connected with the second bracket 32 and forms a hollow structure.

First support 31 and second support 32 concatenation link to each other, when actual installation promptly, set up first support 31 and second support 32 one side that has recess a relatively, and the concatenation laminating is connected fixedly through the welded mode again, guarantees the joint strength of the two. Therefore, the energy absorption box 3 can be formed in a split mode, a complex die is not needed for machining a hollow cavity of the energy absorption box, the design difficulty is reduced, the machining cost is reduced, and the energy absorption box is light in weight and low in cost.

The weakening grooves 33 formed in the first bracket 31 and the second bracket 32 can be formed in a stamping mode, so that the forming difficulty can be reduced.

And/or the lower leg beam connecting bracket 4 comprises a third bracket 41 and a fourth bracket 42, namely the two parts of the lower leg beam connecting bracket 4 can be formed separately and connected into a whole structure when being actually installed. Wherein, the third bracket 41 and the fourth bracket 42 can be formed by punching, as shown in fig. 6 and 7, the third bracket 41 and the fourth bracket 42 are configured as plate-shaped members and are punched to form the groove a, so that when being installed, the third bracket 41 and the fourth bracket 42 are connected and form a hollow structure.

The third support 41 and the fourth support 42 are connected in a splicing manner, that is, when the device is actually installed, one side of the third support 41 and one side of the fourth support 42, which are provided with the grooves a, are oppositely arranged, and the third support 41 and the fourth support 42 are connected and fixed in a splicing and fitting manner in a welding manner, so that the connection strength of the third support and the fourth support is ensured. Therefore, the split molding of the shank beam connecting bracket 4 can be realized, a complex mold is not needed for processing the hollow cavity of the bracket, the design difficulty is reduced, the processing cost is reduced, and the shank beam connecting bracket is light in weight and low in cost.

Therefore, the energy absorption box 3 and the shank beam connecting bracket 4 can be both constructed into hollow tubular structures, thereby playing a good role in absorbing energy and collapsing in the collision process of pedestrians.

The utility model also provides a vehicle.

According to the utility model discloses the vehicle is provided with the shank crossbeam assembly 100 of any kind of above-mentioned embodiment, shank crossbeam 1's simple structure, and the cost of setting up is lower, and sets up the strengthening part 2 on shank crossbeam 1 and do benefit to the structural strength who promotes shank crossbeam 1, optimizes shank crossbeam 1's moment of flexure score, realizes effective protection to the pedestrian, and strengthening part 2 can be connected with the motorcycle type of co-altitude not, does benefit to the motorcycle type that is applicable to not co-altitude type, and the practicality is strong.

From this for the front side of vehicle can rationally arrange local energy absorption through setting up shank crossbeam assembly 100, and simultaneously, rib 2 can play fine guard action to road weak crowd, and is with low costs, easy operation and humanized design again. Meanwhile, the high-speed collision energy transfer is more balanced, the collision performance and the modal, rigidity and strength of the front cabin front end structure can be improved, the safety of members of the vehicle can be ensured in the driving process of the vehicle, and the damage to the collided vehicle can be reduced.

1. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

2. In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

3. In the description of the present invention, "a plurality" means two or more.

4. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

5. In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A lower leg beam assembly (100), comprising:

a shank cross-member (1);

the reinforcement part (2) is connected to the end part of the lower leg beam (1), and at least part of the reinforcement part (2) is arranged in a forward protruding mode relative to the lower leg beam (1);

the energy-absorbing box assembly is connected to the rear side of the shank beam (1), and is used for connecting the shank beam (1) with the auxiliary frame (200).

2. The lower leg beam assembly (100) according to claim 1, wherein the lower leg beam (1) comprises a beam body (11) and extensions (12) connected to two ends of the beam body (11), the extensions (12) are arranged obliquely backward relative to the beam body (11), the extensions (12) and/or the beam body (11) are connected to the reinforcement part (2), and the energy absorption box assembly is connected to the extensions (12).

3. The lower leg beam assembly (100) according to claim 2, wherein the lower leg beam (1) is a stamped plate, the reinforcement portion (2) being integrally formed on the lower leg beam (1).

4. The lower leg beam assembly (100) according to claim 2, wherein the reinforcement portion (2) is a stamped plate, and the reinforcement portion (2) is attached and fixed relative to the lower leg beam (1).

5. The lower leg beam assembly (100) according to claim 4, wherein the reinforcement part (2) comprises a connecting plate (21) and an extension plate (22), the connecting plate (21) is attached to and fixed relative to the lower leg beam (1), and the extension plate (22) is connected to the connecting plate (21) and extends to the front side of the lower leg beam (1).

6. The lower leg beam assembly (100) according to claim 5, wherein the extension plate (22) and/or the connecting plate (21) is provided with a connecting hole (23), and the connecting hole (23) is used for connecting with a front bumper through a connecting piece.

7. The lower leg beam assembly (100) according to claim 1, wherein the energy-absorbing box assembly comprises an energy-absorbing box (3) and a lower leg beam connecting bracket (4), one end of the energy-absorbing box (3) is connected with the lower leg beam (1) and the other end is connected with the lower leg beam connecting bracket (4), and one end of the lower leg beam connecting bracket (4) departing from the energy-absorbing box (3) is used for being connected with the auxiliary frame (200).

8. The lower leg beam assembly (100) of claim 7, wherein the energy absorption box (3) is provided with an energy absorption cavity and the rear end is open, and the front end of the lower leg beam connecting bracket (4) extends into the energy absorption box (3) and is detachably connected with the energy absorption box (3).

9. The lower leg beam assembly (100) of claim 8, wherein the lower leg beam connecting bracket (4) is provided with a first positioning portion, the energy absorption box (3) is provided with a second positioning portion, and the first positioning portion and the second positioning portion are matched with each other to fix the energy absorption box (3) and the lower leg beam connecting bracket (4) relatively.

10. A vehicle characterized by a lower leg beam assembly (100) according to any one of claims 1 to 9.

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