CN-120963583-B - Collapsible front anti-collision beam assembly of automobile

Abstract

The invention relates to an automobile anti-collision Liang Lingyu, in particular to a collapsible automobile front anti-collision beam assembly, which comprises symmetrically distributed arc blocks, wherein an anti-collision beam is arranged between the arc blocks, one side of each arc block is provided with a supporting plate, one side of each supporting plate is slidably provided with a supporting frame plate, the cross section of each supporting frame plate is U-shaped, a rectangular block is slidably arranged in each supporting frame plate, a rotating shaft is rotated in each rectangular block, one side of each rotating shaft is connected with the end part of each supporting plate, one side of each rectangular block is also provided with a rectangular plate, a spring rod is arranged in each supporting frame plate, the telescopic ends of the spring rods are connected with the rectangular plates, and the invention is provided with a spring rod, a buffer rod, a 冂 plate and other multi-stage buffer structures.

Inventors

• KONG YANCHENG
• XU YUANYUAN
• GAO MAOXUAN

Assignees

• 宁波昌晖汽车零部件有限公司

Dates

Publication Date

20260508

Application Date

20250819

Claims (5)

1. 1. The collapsible front anti-collision beam assembly for the automobile comprises arc-shaped blocks which are symmetrically distributed, wherein anti-collision beams are arranged between the arc-shaped blocks, a supporting plate is arranged on one side of each arc-shaped block, and a supporting frame plate is arranged on one side of each supporting plate in a sliding mode; The swinging unit comprises a swinging cavity which is arranged in the rectangular block and communicated with the outer side of the rotating shaft, and one side of the swinging cavity is communicated to the outer side of the rectangular block and corresponds to the inner side wall of the supporting frame plate; the inner side wall of the supporting frame plate is also provided with a containing groove, a plurality of driving teeth are arranged in the containing groove, and the outer side of the driving gear passes through the swinging cavity to the outer side of the rectangular block to correspond to the plurality of driving teeth; the rotary shaft is rotationally connected with the supporting plate, and a clamping assembly for clamping and limiting the rotary shaft is further arranged between the rotary shaft and the supporting plate and comprises a plurality of clamping grooves formed in the outer side of the rotary shaft; The support frame plate is internally provided with a limiting unit for limiting the movement of the rectangular block, the limiting unit comprises a plurality of inclined grooves formed in the inner bottom wall of the support frame plate, the rectangular block is internally provided with a limiting cavity, a transverse plate is arranged in the limiting cavity in a sliding manner, one side of the transverse plate is provided with a plurality of inclined plates inserted, and the transverse plate is connected with the limiting cavity through a pushing spring; A through groove communicated with the limiting cavity is further formed in one side of the rectangular block, and a poking shaft extending to the outer side of the rectangular block through the through groove is arranged on one side of the transverse plate.
2. 2. The collapsible front bumper beam assembly of claim 1, wherein the bumper beam is also U-shaped in cross section and is perforated on both sides, and a buffer unit is disposed between the two arc blocks and located inside the bumper beam, and the buffer unit comprises a cross beam disposed between the two arc blocks and located inside the bumper beam.
3. 3. The collapsible front bumper beam assembly of claim 2, wherein the support frame plate is further provided with 冂 plates on one side, and crush ribs are provided on the outer sides of 冂 plates; And collision plates are symmetrically arranged on one side of the cross beam outside the anti-collision beam, and correspond to the corresponding 冂 plates.
4. 4. A collapsible front bumper beam assembly in accordance with claim 3 wherein the side of the bumper plate remote from the cross member is hinged with a contact plate.
5. 5. The collapsible front bumper beam assembly of claim 4, wherein the side of the support plate near the rotating shaft is semicircular, and a plurality of fixing grooves are formed on one side of the support plate and the outer side of the circular end; The outer side of the toggle plate is provided with a connecting plate, the connecting plate is provided with a longitudinal plate, the upper end of the longitudinal plate is provided with a fixing plate corresponding to the plurality of fixing grooves, the connecting plate is also connected with a fixing bolt in a threaded manner, and the rectangular block is provided with a threaded opening.

Description

Collapsible front anti-collision beam assembly of automobile Technical Field The invention relates to an automobile anti-collision Liang Lingyu, in particular to a collapsible automobile front anti-collision beam assembly. Background The collapsible front anti-collision beam assembly of the automobile is used as a key safety component at the front part of the automobile, and can absorb collision energy through self collapse deformation when the automobile collides, so that the impact on a passenger cabin is effectively reduced, and the safety of passengers and automobile components in the automobile is further protected. In the prior art, the crumple energy absorption mode of the crumple type automobile front anti-collision beam assembly has the characteristic of diversification. For example, skillfully designed folds or shear grooves in the metal beam body dissipate the crash energy by means of structural deformations. Meanwhile, in the prior art, an energy absorption box is usually arranged and used as a main bearing structure, and energy absorption work can be started only by collision, however, the frequent energy absorption operation ensures that the energy absorption box is extremely easy to damage after long-time use. Despite the various energy absorbing means of the prior art, there are a number of significant drawbacks. The partial structure is only composed of a single frame, the collapse mode is fixed and unchanged, the impact resistance effect is greatly limited, and collision scenes with different intensities are difficult to adapt. In addition, in order to improve the energy absorption effect, a multi-layer superposition or long-stroke structure is adopted, which directly leads to the overall too large depth of the device, so that the installation process is complicated, the adaptability is extremely poor, and the device cannot be applied to small cars with narrow space in front of the car body. In addition, most designs are not optimized for pedestrian protection, and direct impact is easily caused to pedestrians during collision, and secondary injury risks exist. In the prior art, if patent with publication number CN202863353U discloses an automobile anti-collision beam structure, the top connection of anti-collision beam is equipped with one-level energy-absorbing box, the below of the anti-collision beam corresponding to one-level energy-absorbing box is equipped with the second grade energy-absorbing box of being connected with the vehicle longitudinal beam, one-level energy-absorbing box, second grade energy-absorbing box are two and divide into the both ends of arranging the anti-collision beam in, through the crumple deformation of two-level energy-absorbing box under different collision speeds, adopt bolted connection in order to damage the change of part with anti-collision beam etc. simultaneously. However, while this technique improves some of the original problems, there are still aspects that require further optimization to better meet the actual detection needs. The energy-absorbing boxes are used as direct fixing ends, even if two energy-absorbing boxes are arranged in the comparison file, one energy-absorbing box can absorb energy when collision occurs, and the energy-absorbing boxes need to be replaced frequently due to frequent energy absorption in the long-time use process. Further, as disclosed in the patent with publication No. CN118753197B, a dual collision-preventing safety type automobile anti-collision beam structure is disclosed, in which a main anti-collision beam and an auxiliary anti-collision beam are installed between two connection beams, and although dual buffering is realized through a section of telescopic structure, the distance between the connection beams is occupied by the main anti-collision beam and the auxiliary anti-collision beam, in practical application, more distance is required to avoid the moving distance of the auxiliary anti-collision beam in the automobile, so that the practicability of the automobile is reduced. Thus, under the above stated viewpoints, there is room for improvement in existing automobile impact beams. Disclosure of Invention In order to solve the problems, the invention provides a collapsible front anti-collision beam assembly of an automobile, which comprises symmetrically distributed arc blocks, wherein anti-collision beams are arranged between the arc blocks, one side of each arc block is provided with a supporting plate, one side of each supporting plate is slidably provided with a supporting frame plate, the cross section of each supporting frame plate is U-shaped, rectangular blocks are slidably arranged in the supporting frame plates, and rotating shafts are rotated in the rectangular blocks. One side of the rotating shaft is connected with the end part of the supporting plate. One side of the rectangular block is also provided with a rectangular plate, a spring rod is arranged in the supporting frame plate, and the