CN217778564U - Shank crossbeam assembly and vehicle - Google Patents

Abstract

The utility model discloses a shank beam assembly and a vehicle. The shank beam assembly comprises: a shank beam; a reinforcement part, the reinforcement part is connected to the end of the shank beam, and at least part of the reinforcement part is opposite to the The calf crossbeam protrudes forward and is arranged; a crash box assembly, the crash box assembly is connected to the rear side of the calf crossbeam, and the crash box assembly is used to connect with the subframe. In the calf beam assembly of the utility model, the structure of the calf beam is simple, and the installation cost is low, and the reinforcing part is arranged on the calf beam to improve the structural strength of the calf beam, optimize the bending moment score of the calf beam, and realize effective protection for pedestrians , Strong practicability.

Description

Calf cross member assembly and vehicle

technical field

The utility model relates to the technical field of vehicle manufacturing, in particular to a lower leg beam assembly and a vehicle with the lower leg beam assembly.

Background technique

In 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 includes at least two lower leg beams, the structure is complex, and the front lower leg beam cannot protect pedestrians well, so there is room for improvement.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a lower leg crossbeam assembly, which has a simple structure and can effectively protect the legs of pedestrians.

The calf beam assembly according to the embodiment of the present invention includes: a calf beam; a reinforcement part, the reinforcement part is connected to the end of the calf beam, and at least part of the reinforcement part protrudes forward relative to the calf beam out setting; an energy-absorbing box assembly, the energy-absorbing box assembly is connected to the rear side of the shank beam, and the energy-absorbing box assembly is used to connect the shank beam with the sub-frame.

According to the calf beam assembly of the embodiment of the present invention, the structure of the calf beam is simple, and the installation cost is relatively low, and the reinforcement part is provided on the calf beam to improve the structural strength of the calf beam, optimize the bending moment score of the calf beam, and realize the safety of pedestrians. Effective protection, strong practicability.

According to the calf crossbeam assembly of some embodiments of the present utility model, the calf crossbeam includes a beam body and extension parts connected to both ends of the beam body, the extension part is inclined backward relative to the beam body, the extension part and/or Or the beam body part is connected to the reinforcement part, and the crash box assembly is connected to the extension part.

According to the calf beam assembly of some embodiments of the present invention, the calf beam is a stamped plate, and the reinforcing part is integrally formed on the calf beam.

According to the calf cross-beam assembly of some embodiments of the present invention, the reinforcing part is a stamped plate, and the reinforcing part is attached to and relatively fixed to the calf cross-beam.

According to the calf crossbeam assembly of some embodiments of the present utility model, the reinforcing part includes a connecting plate and an extension plate, the connecting plate fits and is relatively fixed to the calf crossbeam, the extension plate is connected to the connecting plate and to the front of the calf crossbar.

According to the calf cross member assembly of some embodiments of the present invention, the extension plate and/or the connection plate are provided with connection holes, and the connection holes are used to connect with the front bumper through a connection piece.

According to the calf beam assembly of some embodiments of the present utility model, the energy-absorbing box assembly includes an energy-absorbing box and a connecting bracket for the calf beam, one end of the energy-absorbing box is connected to the calf beam and the other end is connected to the calf beam The connection brackets are connected, and the end of the shank beam connection bracket away from the crash box is used to connect with the subframe.

According to the calf beam assembly of some embodiments of the present utility model, the energy-absorbing box has an energy-absorbing chamber and its rear end is open, and the front end of the connecting bracket of the calf beam extends into the energy-absorbing box and is connected with the energy-absorbing box detachably attached.

According to the calf beam assembly of some embodiments of the present utility model, a first positioning part is provided on the connecting bracket of the calf beam, a second positioning part is provided on the energy-absorbing box, and the first positioning part and the first positioning part are connected to each other. The two positioning parts cooperate with each other so that the crash box and the shank beam connection bracket are relatively fixed.

The utility model also provides a vehicle.

The vehicle according to the embodiment of the utility model is provided with the lower leg beam assembly described in any one of the above embodiments.

Compared with the prior art, the advantages of the vehicle and the above-mentioned shank beam assembly are the same, and will not be repeated here.

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

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

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

Fig. 2 is a structural schematic diagram of a reinforcing part according to an embodiment of the present invention;

Fig. 3 is a schematic structural view of a calf 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 structural schematic view of the shank beam assembly installed on the sub-frame according to the embodiment of the utility model;

Fig. 9 is a schematic cross-sectional view of a calf beam assembly according to other embodiments of the present invention;

Fig. 10 is an assembly cross-sectional view of the shank beam connection bracket and the energy-absorbing box according to the embodiment of the present invention;

Fig. 11 is a partial schematic diagram of a shank beam connection bracket and a crash box according to some embodiments of the present invention;

Fig. 12 is an assembly cross-sectional view of a shank beam connection bracket and a crash box according to other embodiments of the present invention.

Reference signs:

calf cross member assembly 100,

Calf beam 1, beam body 11, reinforcement 111, extension 12, main body plate 13, folded plate 14,

reinforcement part 2, connection plate 21, extension plate 22, connection hole 23, matching groove 24,

The energy-absorbing box 3, the first bracket 31, the second bracket 32, the weakening groove 33, the extension flange 34, the limiting groove 35, the locking protrusion 36,

The lower leg beam connection bracket 4, the third bracket 41, the fourth bracket 42, the groove a, the fixing hole b, the limit protrusion 43, the card interface 44, the connecting bolt 5,

Subframe 200.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

The shank crossbeam assembly 100 according to the embodiment of the present utility model is described below with reference to FIGS. Strong practicality.

Wherein, the calf cross member assembly 100 is suitable for being installed on the front side of the bottom of the vehicle frame, so as to protect pedestrians on the road during driving. As shown in Fig. 8, the lower leg cross member assembly 100 is installed on the bottom of the front side of the vehicle frame, so that when the vehicle is in contact with the pedestrian, the lower leg cross member assembly 100 can contact with the lower leg of the pedestrian, and the lower leg cross member assembly 100 Crushing and deformation occurs during contact with the pedestrian's calf to buffer part of the impact force, thereby preventing the frame from directly impacting the pedestrian's calf position, thereby protecting the pedestrian's calf position.

As shown in FIGS. 1-9 , the calf beam assembly 100 according to the embodiment of the present invention includes: a calf beam 1 , a reinforcing part 2 , and a crash box assembly. As shown in FIG. 8 , the calf cross member assembly 100 is installed on the front side of the subframe 200 .

The reinforcing part 2 is connected to the end of the calf cross-beam 1 , and at least part of the reinforcing part 2 protrudes forward relative to the calf cross-beam 1 . Wherein, in the actual design, two reinforcing parts 2 can be arranged, and the two reinforcing parts 2 are respectively located at the ends of the two ends of the calf beam 1, and the bending moment at the ends of the calf beam 1 is increased by the reinforcing part 2, so that The setting of the reinforcing part 2 improves the structural strength of the calf beam 1 and improves the bending moment score of the calf beam 1. When a pedestrian contacts the vehicle, the pedestrian can contact the reinforcing part 2 on the calf beam 1 first, so that the reinforcing part 2 and the calf The crossbeams 1 cooperate together to realize the collapse absorption of relatively large impact force, thereby enhancing the protection effect on pedestrians.

After being installed on the vehicle frame, the two reinforcing parts 2 are located at two corner positions on the front side of the vehicle frame, thus, during the running of the vehicle, the two reinforcing parts 2 can respectively respond to the traffic from the left or right front of the vehicle. The protection of pedestrians can also prevent the end of the calf beam 1 from colliding with pedestrians too rigidly, so as to ensure the safety of pedestrians. Among them, in the actual design, the reinforcing part 2 and the calf crossbeam 1 can be set as two separate structural parts and fixedly connected; or they can also be set as an integral part, that is, the reinforcing part 2 is on the calf It is formed integrally, that is, no separate reinforcing structure is required, for example, the reinforcing part 2 is integrated on the front side of the calf cross member 1 .

The crash box assembly is connected to the rear side of the calf beam 1, and the crash box assembly is used to connect the calf beam 1 with the subframe 200, wherein at least part of the crash box assembly can be configured as a hollow box-like structure to The energy-absorbing box assembly can be deformed under pressure to realize the function of energy-absorbing collapse.

Therefore, after the lower leg cross member assembly 100 is installed on the vehicle, the energy absorbing box assembly is connected between the lower leg cross member 1 and the subframe 200, so that when the lower leg cross member 1 is in contact with the leg of a pedestrian, it can squeeze and absorb energy. The box assembly shrinks and deforms relative to the sub-frame 200 , and absorbs the impact force on the lower leg of the pedestrian during the deformation process, thereby facilitating the absorption of the impact force and preventing excessive impact on the lower leg of the pedestrian.

According to the calf beam assembly 100 of the embodiment of the present utility model, the structure of the calf beam 1 is simple, and the installation cost is relatively low, and the reinforcing part 2 is provided on the calf beam 1 to improve the structural strength of the calf beam 1 and optimize the bending of the calf beam 1. Moment score, to achieve effective protection of pedestrians, and strong practicability.

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

Wherein, as shown in Fig. 1 and Fig. 3, there are two extension parts 12, and the two extension parts 12 are connected to the two ends of the beam body part 11 respectively. Increase the overall structural strength of the calf crossbeam 1 , prevent structural breakage at the connection between the extension part 12 and the beam body part 11 during use, and improve the structural safety of the calf crossbeam 1 .

As shown in Fig. 3, the extension part 12 is inclined backward relative to the beam body part 11, so that the overall structure of the calf beam 1 is bow-shaped, that is, the extension part 12 and the beam body part 11 form a bent structure, thus, pedestrians appearing in the vehicle When the left front or the right front, the end of the calf beam 1 will not be directly inserted into the pedestrian in the direction perpendicular to the pedestrian, but will contact the pedestrian at the extension 12 at a certain angle of inclination to enhance the protection of the pedestrian.

The extension part 12 and/or the beam body part 11 is connected to the reinforcement part 2, that is, the reinforcement part 2 can be connected to the extension part 12, and can also be connected to the end of the reinforcement part 2, or the reinforcement part 2 is connected to the beam body part 11 and the extension part 12 at the same time, As shown in Figure 1, the reinforcement part 2 is connected to the extension part 12 and the inner end part of the reinforcement part 2 is connected to the end of the beam body part 11, thus, it is beneficial to increase the connection strength between the reinforcement part 2 and the calf crossbeam 1 and improve the calf crossbeam A bending moment score of 1.

The crash box assembly is connected to the extension part 12 so that the impact force received by the extension part 12 can be transmitted to the crash box assembly, thereby absorbing the impact force through the deformation of the crash box assembly and ensuring the energy absorption effect of the lower leg beam assembly 100 . For example, the front end of the crash box assembly and the extension part 12 are welded and fixed.

In some embodiments, the beam body 11 is provided with reinforcing ribs 111 , and the reinforcing ribs 111 are beneficial to improve the structural strength of the beam body 11 . Wherein, as shown in FIG. 1 , the reinforcing rib 111 is configured as a strip, and the reinforcing rib 111 is extended in the length direction of the beam body 11 to increase the structural strength of the beam body 11 at various positions along the length direction.

In some embodiments, the calf beam 1 is a stamped plate, that is, the calf beam 1 is stamped and formed by sheet metal parts, the structure is simple, the forming method is easy to realize, and the rib 111 can be stamped in the middle of the calf beam 1, which is difficult to process. lower. Wherein, the calf crossbeam 1 is formed by stamping a sheet metal part, compared with the tubular calf crossbeam 1, the forming efficiency is higher and the processing cost is lower.

Wherein, the calf beam 1 includes a main body plate 13 and a folded plate 14, the folded plate 14 is connected to the main plate 13 by bending, and both the main body plate 13 and the folded plate 14 are formed by stamping, and there is no need to set complicated processing molds . And in the actual connection, the main body plate 13 can be connected with the reinforcement part 2, so that the reinforcement part 2 and the calf beam 1 can be integrally installed on the vehicle frame; the folded plate 14 and/or the main body board 13 can be connected with the crash box assembly , In this way, the folded plate 14 can transmit the impact energy to the crash box assembly, so as to realize the transmission and collapse of the impact force.

And in the actual design, the folded plate 14 is connected to the rear side of the main plate 13, and the folded plate 14 is turned up relative to the main plate 13. When connected, the plane where the main plate 13 is located is parallel to or between the horizontal plane and the horizontal plane. The included angle between them is relatively small, the main body plate 13 is attached to the surface of the reinforcing part 2, and at the same time, the folded plate 14 is attached and welded to the front end of the crash box assembly to form an integral structure. Wherein, the reinforcing rib 111 is disposed on the main body panel 13 .

In some embodiments, the calf beam 1 is a stamped plate, and the reinforcement part 2 is integrally formed on the calf beam 1. As shown in FIG. 9, the reinforcement part 2 and the calf beam 1 are integrally formed. The upper portion is configured to have a U-shaped cross-section shape, and the bottom and the rear of the calf beam assembly 100 are formed as the calf beam 1, and the front portion of the calf beam assembly 100 is formed as the reinforcement portion 2, thus, it is beneficial to improve the strength of the reinforcement portion. 2 and the connection strength of the calf beam 1, the two are not easy to break.

Among them, the reinforcing part 2 is integrated on the calf beam 1 to be integrally formed with the calf beam 1, so that the two can be formed by the same structural part. and the calf crossbeam 1 do not need to be formed separately, which is beneficial to improve the forming efficiency.

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

And in the actual installation, the reinforcing part 2 and the calf crossbeam 1 are bonded and relatively fixed, such as the surface of the reinforcing part 2 is bonded to the surface of the calf crossbeam 1 and fixedly connected by welding, thus, the reinforcing part 2 and the calf beam 1 can be formed separately, which is beneficial to reduce the difficulty of forming a single structural part.

In some embodiments, the reinforcing part 2 includes a connection plate 21 and an extension plate 22, the connection plate 21 and the extension plate 22 are connected by bending, and both the connection plate 21 and the extension plate 22 are formed by stamping, without complex processing mold.

The connecting plate 21 is connected with the calf beam 1, that is, in the actual connection, the connecting plate 21 and the calf beam 1 are attached and fixed, for example, the surface of the connecting plate 21 is bonded to the surface of the main body plate 13 and fixedly connected by welding. The extension plate 22 is connected with the connection plate 21 and extends to the front side of the calf cross member 1, that is, the extension plate 22 is connected to the front side edge of the connection plate 21, and the extension plate 22 protrudes forward relative to the connection plate 21, so that pedestrians When in contact with the vehicle, the extension plate 22 can contact the pedestrian first, and after receiving a certain impact force, the extension plate 22 can be bent and deformed relative to the connecting plate 21 to buffer a certain impact force and enhance the protection effect on pedestrians.

In some embodiments, the extension plate 22 and/or the connecting plate 21 is provided with a connecting hole 23, and the connecting hole 23 is used to connect with the front bumper through a connecting piece, so that the reinforcing part 2 can be detachably connected with the front bumper, Furthermore, the reinforcing part 2 can be applied to vehicle frames of vehicles with different heights. Thus, the calf cross member assembly 100 can be applied to front bumpers of different heights, and the applicability of the overall structure in different types of vehicles can be enhanced.

Wherein, as shown in Fig. 1 and Fig. 2, the extension plate 22 is provided with connection holes 23, and the connection holes 23 are provided in multiples, and the plurality of connection holes 23 are distributed at intervals in the length direction of the extension plate 22, so that the extension The plate 22 can realize connection and fixation with the front bumper at multiple positions, enhance the connection stability between the reinforcement part 2 and the front bumper, and facilitate long-term use.

And, a matching groove 24 can be provided on the extension plate 22, and the matching groove 24 can be used to cooperate with the protruding structure on the front bumper, so as to increase the connection strength between the reinforcement part 2 and the front bumper.

In some embodiments, the crash box assembly includes a crash box 3 and a calf beam connecting bracket 4, one end of the crash box 3 is connected to the calf beam 1, and the other end is connected to the calf beam connecting bracket 4, and the calf beam connecting bracket 4 The end away from the crash box 3 is used to connect with the sub-frame 200 .

Specifically, the energy absorbing box 3 is connected to the rear side of the calf beam 1, and the calf beam connecting bracket 4 is connected to the rear side of the energy absorbing box 3 and is used to connect with the subframe 200, wherein the energy absorbing box 3 is connected to the calf beam 1 and the calf cross-beam connection bracket 4, and the energy-absorbing box 3 is constructed as a hollow box-like structure, and the energy-absorbing box 3 can be deformed under pressure to realize the function of energy-absorbing collapse.

Thus, after the lower leg cross member assembly 100 is installed on the vehicle, the energy absorbing box 3 and the lower leg cross member connecting bracket 4 are connected between the lower leg cross member 1 and the subframe 200 so that when the lower leg cross member 1 is in contact with the pedestrian’s leg , the energy-absorbing box 3 can be squeezed, so that the energy-absorbing box 3 shrinks and deforms relative to the shank beam connecting bracket 4 and the sub-frame 200, and then absorbs the impact force at the position of the pedestrian's calf during the deformation process, thereby facilitating the absorption of the impact Force, to prevent too intense impact on the pedestrian's calf.

In some embodiments, the front end of the energy-absorbing box 3 is attached to the folded plate 14 of the calf beam 1, and the lower edge of the front end of the energy-absorbing box 3 is also provided with an extended flange 34 protruding forward. , the extended flange 34 extends to the bottom of the main body panel 13 to fit and connect with the main body portion 13 .

In some embodiments, the energy-absorbing box 3 has an energy-absorbing chamber and its rear end is open, and in actual design, both the energy-absorbing box 3 and the lower leg beam connecting bracket 4 can be constructed as hollow structures, and the lower leg beam connecting bracket 4 The front end extends into the energy-absorbing box 3 and is detachably connected with the energy-absorbing box 3, so that after the two are connected, the energy-absorbing box 3 and the lower-leg beam connecting bracket 4 can be Crumples relative to movement to enhance energy absorption.

In other words, the energy-absorbing box 3 is sleeved on the outside of the lower-leg beam connecting bracket 4 , and the energy-absorbing box 3 is detachably connected to the lower-leg beam connecting bracket 4 . As shown in Figure 1, the energy-absorbing box 3 is constructed as a hollow box-like structure, the front end of the energy-absorbing box 3 is connected to the calf beam 1, and the rear end of the energy-absorbing box 3 is open, and at the same time, the front end of the calf beam connecting bracket 4 is connected to the The rear end of the energy-absorbing box 3 is connected, and the front end of the shank beam connecting bracket 4 extends into the energy-absorbing chamber of the energy-absorbing box 3, and after extending to a fixed position, it is connected and fixed by a connecting piece.

Specifically, in actual design, a fixing hole b may be provided on the crash box 3, and a fixing hole b may also be provided on the shank beam connecting bracket 4, so that the fixing holes b of the two are directly opposite to each other, and through the The connecting piece in the fixing hole b is connected and fixed, and the structure is simple and easy to install.

Thus, when the calf crossbeam 1 collides with a pedestrian, the crash box 3 is deformed under force, and the crus beam connecting bracket 4 can further extend into the crash box 3 under the action of the impact force, so that through the Relative movement to realize collapse energy absorption.

In some embodiments, the shank beam connection bracket 4 is provided with a first positioning portion, and the crash box 3 is provided with a second positioning portion, and the first positioning portion and the second positioning portion are relatively matched so that the crash box 3 It is fixedly connected to the shank beam connection bracket 4.

Wherein, the first positioning part can limitly cooperate with the second positioning part. Specifically, one of the first positioning portion and the second positioning portion can be configured as a limiting groove 35, and the other can be configured as a limiting protrusion 43, so that the limiting protrusion 43 extends into the limiting groove, Realize the fast clamping connection between the energy-absorbing box 3 and the connecting bracket 4 of the calf beam, and after the clamping, it can be fixed by the connecting piece pierced through the fixing hole b. As shown in Figure 10, the front end of the connecting bracket 4 of the calf beam extends to Inside the crash box 3, it is connected and fixed by connecting pieces penetrating in the up and down direction. As shown in FIG. 10 , the connecting element can be configured as a connecting screw 5 .

And in the actual design, as shown in Figure 11, a limiting protrusion 43 is provided on the lower side of the shank beam connecting bracket 4, and a limiting groove 35 is provided at the rear end of the energy-absorbing box 3, and the limiting groove 35 is opened to the rear. , thus, when the lower leg beam connecting bracket 4 is extended forward into the crash box 3, the limiting protrusion 43 is forwardly stretched into the limiting groove 35, so as to realize the connection between the lower leg beam connecting bracket 4 and the crash box 3. snap-fit.

Wherein, the opening width of the limiting groove 35 can be set to gradually change, such as the opening width of the limiting groove 35 is set to gradually decrease towards the rear, so that the limiting protrusion 43 can be clamped in the limiting groove 35, and the calf The beam connection bracket 4 is connected and fixed with the sub-frame 200, so as to accurately position the X-direction, Y-direction, and rotation direction around the Z-direction of the calf beam 1, and the assembler can simply and directly pass the connecting piece through the mounting hole. However, to avoid constantly adjusting the calf crossbeam 1 to an appropriate position, save assembly time and labor intensity, the above structure only needs one person to complete the assembly, while the previous structure required at least two people or fixed-value special tooling to complete. Reduce installation difficulty.

And, the limiting slot 35 can be formed by punching.

In some other embodiments, the first positioning portion and the second positioning portion can be snap-fitted, for example, one of the first positioning portion and the second positioning portion is configured as a snap-in protrusion 36 , and the other is configured as a snap-in interface 44 , so that the crash box 3 can be clamped to the shank beam connecting bracket 4 . As shown in Figure 12, the rear end of the energy-absorbing box 3 is provided with a clamping protrusion 36, and a clamping interface 44 is provided on the side wall of the shank beam connecting bracket, and the shank beam connecting bracket 4 extends forward into the energy-absorbing box 3 When the clamping protrusion 36 extends into the card interface 44, the clamping and fixing are realized, the structure is simple, and the installation is convenient.

Wherein, at least one of the energy-absorbing box 3 and the shank beam connecting bracket 4 can be provided with a weakening groove 33, as shown in Figure 1, the upper and lower sides of the energy-absorbing box 3 can be provided with a weakening groove 33, and the weakening groove 33 is a plurality, and the plurality of weakening grooves 33 are distributed at intervals in the length direction of the crash box 3 to enhance the energy absorbing effect of the crash box 3 .

In some embodiments, the crash box 3 includes a first bracket 31 and a second bracket 32 , that is, the two parts of the crash box 3 can be formed separately and connected into an integral structure during actual installation. Wherein, both the first bracket 31 and the second bracket 32 can be processed and formed by stamping, as shown in Figure 4 and Figure 5, the first bracket 31 and the second bracket 32 are configured as plate-shaped parts and punched to form a groove a, Therefore, when installed, the first bracket 31 is connected with the second bracket 32 to form a hollow structure.

The first bracket 31 and the second bracket 32 are spliced and connected, that is, during actual installation, the sides with the groove a of the first bracket 31 and the second bracket 32 are oppositely arranged, and the splicing and bonding are carried out for connection and fixing by welding , to ensure the connection strength between the two. Thereby, the separate molding of the crash box 3 can be realized, and the hollow cavity of the crash box does not need to be processed with complicated molds, which reduces design difficulty and processing cost, and is light in weight and low in cost.

Wherein, the weakening groove 33 provided on the first bracket 31 and the second bracket 32 can also be processed and formed by stamping, which is beneficial to reduce the difficulty of forming.

And, and/or the shank beam connecting bracket 4 includes a third bracket 41 and a fourth bracket 42 , that is, the two parts of the shank beam connecting bracket 4 can be formed separately and connected into an integral structure during actual installation. Wherein, both the third bracket 41 and the fourth bracket 42 can be processed and formed by stamping, as shown in Figure 6 and Figure 7, the third bracket 41 and the fourth bracket 42 are configured as plate-shaped parts and punched to form a groove a, Therefore, during installation, the third bracket 41 and the fourth bracket 42 are connected to form a hollow structure.

The third bracket 41 and the fourth bracket 42 are spliced and connected, that is, during actual installation, the side of the third bracket 41 and the fourth bracket 42 with the groove a are oppositely arranged, and the splicing and bonding are carried out for connection and fixing by welding , to ensure the connection strength between the two. Thereby, the separate molding of the shank beam connection bracket 4 can be realized, and the hollow cavity of the bracket does not need to be processed by complicated molds, which reduces design difficulty and processing cost, and is light in weight and low in cost.

Therefore, both the energy-absorbing box 3 and the shank beam connecting bracket 4 can be configured as a hollow tubular structure, so as to play a good role in absorbing energy and collapsing during the collision of pedestrians.

The utility model also provides a vehicle.

According to the vehicle of the embodiment of the utility model, the calf beam assembly 100 of any one of the above-mentioned embodiments is provided, the structure of the calf beam 1 is simple, the installation cost is low, and the reinforcing part 2 is provided on the calf beam 1 to facilitate the lifting of the calf beam The structural strength of 1 optimizes the bending moment score of the calf beam 1 to achieve effective protection for pedestrians, and the reinforcement part 2 can be connected to models of different heights, which is suitable for models of different heights and has strong practicability.

Therefore, by setting the lower leg beam assembly 100 on the front side of the vehicle, the energy absorption can be reasonably arranged, and at the same time, the reinforcing part 2 can play a good role in protecting the vulnerable groups on the road, with low cost, simple operation and humanization the design of. At the same time, it can make the high-speed collision energy transfer more balanced, and can improve the collision performance and the modal, rigidity and strength of the front cabin front structure, and can ensure the safety of the vehicle members while reducing the impact on the vehicle during driving. damage to the vehicle.

1. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front ", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", " The orientations or positional relationships indicated by "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the Means that a device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention.

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

3. In the description of the present utility model, "multiple" means two or more.

4. In the description of the present utility model, "above" or "under" the first feature may include that the first and second features are in direct contact, and may also include that the first and second features are not in direct contact but is through additional feature contacts between them.

5. In the description of the present utility model, "above", "above" and "above" the first feature include the first feature being directly above and obliquely above the second feature, or simply mean the level of the first feature The height is higher than the second feature.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation Specific features, structures, materials or characteristics described in an embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention 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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