CN209987885U

CN209987885U - Front anti-collision structure of automobile

Info

Publication number: CN209987885U
Application number: CN201920777197.8U
Authority: CN
Inventors: 李红
Original assignee: Kaifeng University
Current assignee: Kaifeng University
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-01-24
Anticipated expiration: 2029-05-28

Abstract

The utility model relates to an automotive equipment technical field specifically is a front anticollision structure of car, including the anticollision roof beam, the energy-absorbing box, the mounting panel, the energy-absorbing box includes first energy-absorbing pipe, second energy-absorbing pipe and third energy-absorbing pipe, first energy-absorbing pipe integral type is equipped with first baffle and first spring assembly, second energy-absorbing pipe integral type is equipped with the second baffle, first cardboard and second spring assembly, third energy-absorbing pipe integral type is equipped with the second cardboard, first cardboard and second cardboard middle part all are equipped with the through-hole, be equipped with the flexible pole in first spring assembly and the second spring assembly, third energy-absorbing pipe right-hand member fixed connection is at mounting panel left side middle part, beneficial effect: the buffering structure is arranged, when the automobile collides, the anti-collision beam elastically collides with the first spring group, the second spring group and the elastic rod at first, the energy generated by collision is reduced, a certain buffering effect is achieved, the damage caused when the body of a passenger responds to deceleration can be reduced, and the deformation degree of the living space of the passenger compartment can be influenced.

Description

Front anti-collision structure of automobile

Technical Field

The utility model relates to an automotive equipment technical field specifically is an anterior anticollision structure of car.

Background

The automobile is inevitable to collide in the driving process, in order to reduce the damage of collision to passengers and pedestrians and the deformation of an engine compartment generated by collision, an anti-collision structure is required to be installed at the front part of the automobile, the existing automobile front anti-collision structure generally comprises a front bumper, a buffer material, an anti-collision beam, an energy absorption box, an installation plate and the like, and the anti-collision structure is fixedly connected to an automobile frame longitudinal beam through the installation plate.

The energy absorption box is generally an aluminum alloy square tube with a certain length and a cavity, the energy absorption box is mainly designed with proper rigidity, so that the rigidity coordination of all parts is achieved, and the influence of automobile collision is further reduced; the rigidity is less, the energy absorption box absorbs less energy in the collision process, the buffering effect cannot be achieved, the deformation of the passenger compartment is increased, the living space of passengers is reduced, the personal safety of the passengers is damaged, and therefore the front anti-collision structure of the automobile is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a front portion anticollision structure of car to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an anti-collision structure at the front part of an automobile comprises an anti-collision beam, an energy absorption box and a mounting plate which are connected in sequence, wherein the energy absorption box comprises a first energy absorption pipe, a second energy absorption pipe and a third energy absorption pipe, the right side of the first energy absorption tube is fixedly connected with a first baffle in an integrated manner, a first spring group is arranged in a cavity of the first energy absorption tube, the right side and the left side of the second energy-absorbing pipe are respectively and fixedly connected with a second baffle and a first clamping plate in an integrated manner, a second spring set is arranged in a cavity of the second energy-absorbing pipe, a second clamping plate is fixedly connected to the left side of the third energy-absorbing pipe in an integrated manner, the middle parts of the first clamping plate and the second clamping plate are respectively provided with a through hole, the first spring group and the second spring group are internally provided with an elastic rod, the left end of the elastic rod is fixedly connected on the inner wall of the left side of the first energy-absorbing pipe, and the right end of the elastic rod penetrates through the through holes in the first clamping plate and the second clamping plate, and the right end of the third energy-absorbing pipe is fixedly connected to the middle of the left side of the mounting plate.

Preferably, the length of the first energy absorption pipe is smaller than that of the second energy absorption pipe, and the length of the second energy absorption pipe is smaller than that of the third energy absorption pipe.

Preferably, the first baffle and the second baffle are both of a plate-shaped structure in a shape like a Chinese character 'hui' with an opening in the middle, and the first clamping plate and the second clamping plate are both of a square plate-shaped structure.

Preferably, the opening size of the first baffle is the same as that of the second energy-absorbing pipe, the first baffle can slide around the surface of the second energy-absorbing pipe, the opening size of the second baffle is the same as that of the third energy-absorbing pipe, the second baffle can slide around the surface of the third energy-absorbing pipe, the length and width size of the first clamping plate is the same as that of the inner cavity of the first energy-absorbing pipe, the first clamping plate can slide in the inner cavity of the first energy-absorbing pipe, the length and width size of the second clamping plate is the same as that of the inner cavity of the second energy-absorbing pipe, and the second clamping plate can slide in the inner cavity of the second energy-absorbing pipe.

Preferably, the first spring set, the second spring set, the through hole and the central shaft of the elastic rod are positioned on the same axis.

Preferably, the length of the elastic rod is greater than that of the third energy-absorbing pipe, and the right end of the elastic rod is located at the left end in the third energy-absorbing pipe when collision does not occur.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the multi-stage energy absorption tube and other buffer structures are arranged, when an automobile collides, the anti-collision beam elastically collides with the first spring group, the second spring group and the elastic rod at first, energy generated by collision is reduced, a certain buffer effect is achieved, damage caused when the body of a passenger responds to deceleration can be relieved, and the deformation degree of the living space of a passenger compartment can be influenced;

2. the spring group and the elastic rod in the energy absorption box can change the rigidity of the energy absorption box within a certain range, so that the problem of redundant loss caused by overlarge or undersize rigidity is avoided when the automobile collides with different degrees.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the crash box of this embodiment in an un-impacted state.

In the figure: the energy absorption structure comprises an anti-collision beam 100, an energy absorption box 200, a mounting plate 300, a first energy absorption pipe 1, a first baffle 11, a second energy absorption pipe 2, a second baffle 21, a first clamping plate 22, a third energy absorption pipe 3, a second clamping plate 31, a first spring group 4, a second spring group 5, a through hole 6 and an elastic rod 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution: an anti-collision structure at the front part of an automobile comprises an anti-collision beam 100, an energy-absorbing box 200 and a mounting plate 300 which are sequentially connected, wherein in the embodiment, the energy-absorbing box 200 comprises a first energy-absorbing pipe 1, a second energy-absorbing pipe 2 and a third energy-absorbing pipe 3, the length of the first energy-absorbing pipe 1 is smaller than that of the second energy-absorbing pipe 2, the length of the second energy-absorbing pipe 2 is smaller than that of the third energy-absorbing pipe 3, the third energy-absorbing pipe 3 is ensured to be always sleeved in the second energy-absorbing pipe 2, the second energy-absorbing pipe 2 is always sleeved in the first energy-absorbing pipe 1, the relative positions of the first energy-absorbing pipe 1, the second energy-absorbing pipe 2 and the third energy-absorbing pipe 3 are prevented from being changed under the condition that the energy-absorbing box 200 is not damaged when the automobile is slightly collided, and further the subsequent use condition is influenced, a first baffle plate 11 is integrally and fixedly connected to the right side of the first energy-absorbing pipe 1, a first spring group 4 is arranged in a cavity, and a second spring group 5 is arranged in a cavity of the second energy-absorbing pipe 2, and a second clamping plate 31 is fixedly connected to the left side of the third energy-absorbing pipe 3 in an integrated manner.

The first baffle plate 11 and the second baffle plate 21 are both of a plate-shaped structure in a shape like a Chinese character 'hui' with an opening in the middle, the first baffle plate 22 and the second baffle plate 31 are both of a square plate-shaped structure, the opening of the first baffle plate 11 is the same in size as the second energy-absorbing tube 2, the first baffle plate 11 can slide around the surface of the second energy-absorbing tube 2, the opening of the second baffle plate 21 is the same in size as the third energy-absorbing tube 3, the second baffle plate 21 can slide around the surface of the third energy-absorbing tube 3, the length and width of the first baffle plate 22 are the same as those of the cavity in the first energy-absorbing tube 1, the first baffle plate 22 can slide in the cavity in the first energy-absorbing tube 1, the length and width of the second baffle plate 31 are the same as those of the cavity in the second energy-absorbing tube 2, the second baffle plate 31 can slide in the cavity in the second energy-absorbing tube 2, the shape structure and size of the first baffle plate 11, the second baffle plate 21, the first baffle plate 22, the second plate 31 can be, when the automobile does not collide, the acting force and the reaction force of the compression deformation of the first spring set 4 and the second spring set 5 act on the first catch plate 22 and the second catch plate 31, and then the right sides of the two ends of the first catch plate 22 and the second catch plate 31 are attached to the left sides of the first baffle 11 and the second baffle 21.

The middle parts of the first clamping plate 22 and the second clamping plate 31 are respectively provided with a through hole 6, the first spring group 4 and the second spring group 5 are internally provided with an elastic rod 7, the central axes of the first spring group 4, the second spring group 5, the through hole 6 and the elastic rod 7 are positioned on the same axis, the first spring group 4, the second spring group 5 and the through hole 6 in the energy absorption box 200 can ensure that the rigidity of the energy absorption box 200 can be changed within a certain range, when the automobile is collided with different degrees, the problem of redundant loss caused by overlarge or undersize rigidity is avoided, the left end of the elastic rod 7 is fixedly connected on the inner wall of the left side of the first energy absorption tube 1, the right end of the elastic rod 7 penetrates through the through holes 6 on the first clamping plate 22 and the second clamping plate 31, the length of the elastic rod 7 is larger than that of the third energy absorption tube 3, when collision does not occur, the right end of the elastic rod 7 is positioned at the left end in the third energy absorption tube, the multi-stage buffer structure is arranged, when an automobile collides, the anti-collision beam 100 elastically collides with the first spring group 4, the second spring group 5 and the elastic rod 7 at first, energy generated by collision is reduced, a certain buffer effect is achieved, damage caused when the body of a passenger responds to deceleration can be reduced, and the deformation degree of the living space of the passenger compartment can be influenced.

The working principle is as follows: in actual work, when an automobile is not collided, acting force and reaction force of the first spring group 4 and the second spring group 5 which are deformed by pressure act on the first catch plate 22 and the second catch plate 31, so that the right sides of the two ends of the first catch plate 22 and the second catch plate 31 are attached to the left sides of the first baffle 11 and the second baffle 21, when the automobile is collided, external energy acts on the anti-collision beam 100, the anti-collision beam 100 extrudes the first energy-absorbing pipe 1 rightwards, then the first energy-absorbing pipe 1 generates rightwards force to the first spring group 4 and the elastic rod 7 and transmits energy, the leftwards force generated under the action of the first catch plate 22 offsets a small amount of energy transmitted by the first spring group 4 and plays a certain buffering role, then the first catch plate 22 extrudes the second spring group 5 rightwards and drives the second energy-absorbing pipe 2 to transmit energy, the second spring group 5 generates leftwards force under the action of the second catch plate 31 to offset the energy transmitted by the first catch plate 22 again, and play certain cushioning effect, elastic rod 7 butt in the left side of mounting panel 300 at last, the elastic deformation of elastic rod 7 self offsets the energy that comes from on first energy-absorbing pipe 1 once more to play certain cushioning effect, through multistage buffering, thereby make the rigidity of energy-absorbing box 200 change, reach the damage that causes when alleviateing passenger's health response deceleration, can influence the purpose of the deformation degree of passenger cabin living space again.

It should be noted that all directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiments of the present invention are only used for explaining the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are also changed accordingly, and in the present invention, the description referring to "first", "second", etc. is only used for descriptive purposes, and is not to be interpreted as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, so that the features defined as "first", "second", etc. may explicitly or implicitly include at least one of the features.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a front anti-collision structure of car, is including crashproof roof beam (100), energy-absorbing box (200), mounting panel (300) that connect gradually, its characterized in that: the energy absorption box (200) comprises a first energy absorption pipe (1), a second energy absorption pipe (2) and a third energy absorption pipe (3), wherein the right side of the first energy absorption pipe (1) is fixedly connected with a first baffle (11) in an integrated manner, a first spring set (4) is arranged in a cavity of the first energy absorption pipe (1), the right side and the left side of the second energy absorption pipe (2) are fixedly connected with a second baffle (21) and a first clamping plate (22) in an integrated manner respectively, a second spring set (5) is arranged in a cavity of the second energy absorption pipe (2), the left side of the third energy absorption pipe (3) is fixedly connected with a second clamping plate (31) in an integrated manner, through holes (6) are formed in the middle parts of the first clamping plate (22) and the second clamping plate (31), elastic rods (7) are arranged in the first spring set (4) and the second spring set (5), and the left end of each elastic rod (7) is fixedly connected to the inner wall of the left side of, and the right end of the elastic rod (7) penetrates through the through holes (6) in the first clamping plate (22) and the second clamping plate (31), and the right end of the third energy-absorbing pipe (3) is fixedly connected to the middle part of the left side of the mounting plate (300).

2. A front crash structure for an automobile according to claim 1, wherein: the length of the first energy absorption pipe (1) is smaller than that of the second energy absorption pipe (2), and the length of the second energy absorption pipe (2) is smaller than that of the third energy absorption pipe (3).

3. A front crash structure for an automobile according to claim 1 or 2, wherein: the first baffle (11) and the second baffle (21) are both of a plate-shaped structure which is shaped like a Chinese character 'hui' and provided with an opening in the middle, and the first clamping plate (22) and the second clamping plate (31) are both of a square plate-shaped structure.

4. A front crash structure for an automobile according to claim 1, wherein: first baffle (11) opening size and second energy-absorbing pipe (2) size are the same and first baffle (11) can slide around second energy-absorbing pipe (2) surface, second baffle (21) opening size and third energy-absorbing pipe (3) size are the same and second baffle (21) can slide around third energy-absorbing pipe (3) surface, the length and width size of first cardboard (22) is the same with first energy-absorbing pipe (1) inner cavity and first cardboard (22) can slide in first energy-absorbing pipe (1) inner cavity, the length and width size of second cardboard (31) is the same with second energy-absorbing pipe (2) inner cavity and second cardboard (31) can slide in second energy-absorbing pipe (2) inner cavity.

5. A front crash structure for an automobile according to claim 1, wherein: the central shafts of the first spring set (4), the second spring set (5), the through hole (6) and the elastic rod (7) are positioned on the same axis.

6. A front crash structure for an automobile according to claim 1, wherein: the length of the elastic rod (7) is larger than that of the third energy-absorbing pipe (3), and the right end of the elastic rod (7) is positioned at the left end in the third energy-absorbing pipe (3) when collision does not occur.