CN108407744A - A kind of the rear anti-crash component and automobile of automobile - Google Patents
A kind of the rear anti-crash component and automobile of automobile Download PDFInfo
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- CN108407744A CN108407744A CN201810440945.3A CN201810440945A CN108407744A CN 108407744 A CN108407744 A CN 108407744A CN 201810440945 A CN201810440945 A CN 201810440945A CN 108407744 A CN108407744 A CN 108407744A
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- prevention girders
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- 230000002265 prevention Effects 0.000 claims abstract description 129
- 230000007704 transition Effects 0.000 claims description 9
- 210000003205 muscle Anatomy 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000009863 impact test Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses the rear anti-crash component and automobile of a kind of automobile, the rear anti-crash component includes：First order collision prevention girders, the first order collision prevention girders have the first energy-absorbing chamber；There is the second energy-absorbing chamber, the second level collision prevention girders to be arranged in parallel with the first order collision prevention girders for second level collision prevention girders, the second level collision prevention girders；Tie-beam, the tie-beam inclination are connected between the first order collision prevention girders and the second level collision prevention girders, wherein the first order collision prevention girders are located at the front of second level collision prevention girders on length of wagon direction.The rear anti-crash component of the automobile is provided with the beam of two-stage anticollision, touches energy after absorbing step by step, promotes the crashworthiness of rear portion of car body.
Description
Technical field
The present invention relates to automotive engineering, more particularly to the rear anti-crash component and automobile of a kind of automobile.
Background technology
The safety of automobile plays a crucial role vehicle.When being touched after automobile generation, body tail is prevented
It hits performance and energy-absorbing effect is directly related to vehicle body rear part structure and the safety of crew module.
In the prior art, the crashworthiness of rear portion of car body and energy-absorbing effect are poor, it is difficult to meet and touch after automobile
It is required that.To those skilled in the art, how the rear anti-crash structure of automobile is optimized, promoted crashworthiness and
Energy-absorbing effect one of is a problem to be solved.
Invention content
The object of the present invention is to provide a kind of rear anti-crash component of automobile, the rear anti-crash component of the automobile, which is provided with two-stage, to be prevented
The beam hit touches energy after absorbing step by step, promotes the crashworthiness of rear portion of car body.It is a further object of the present invention to provide one kind
Automobile.
The present invention provides a kind of rear anti-crash component of automobile, the rear anti-crash component includes：
First order collision prevention girders, the first order collision prevention girders have the first energy-absorbing chamber；
Second level collision prevention girders, the second level collision prevention girders have the second energy-absorbing chamber, the second level collision prevention girders and described the
Level-one collision prevention girders are arranged in parallel；
Tie-beam, the tie-beam inclination are connected between the first order collision prevention girders and the second level collision prevention girders,
In, the first order collision prevention girders are located at the front of second level collision prevention girders on length of wagon direction.
Optionally, the sectional dimension of the first order collision prevention girders is more than the sectional dimension of the second level collision prevention girders.
Optionally, the first order collision prevention girders are located at the lower section of the second level collision prevention girders on bodywork height direction.
Optionally, the first order collision prevention girders have the first girder of the width direction extension along body of a motor car, by described
The both ends of first girder are respectively to the first auxiliary beam of the front bending of body of a motor car, vertical first master of the first auxiliary beam
Beam；
The second level collision prevention girders have the second girder of the width direction extension along body of a motor car, by second girder
Both ends respectively to the second auxiliary beam of the front bending of body of a motor car, vertical second girder of the second auxiliary beam.
Optionally, the described first auxiliary beam is detachably connected on the medial surface of the rear upper girder of body of a motor car, and described first
Girder is located at the rear of the rear upper girder；The second auxiliary beam is detachably connected on the inside of the rear support beam of body of a motor car
Face, and second girder is located at the rear of the rear support beam, the rear support beam fixes upper girder upper surface in the rear
Rear end.
Optionally, the described first auxiliary beam with it is described after upper girder form one and be detachably connected a little, the second auxiliary beam with
The rear support beam forms two and is detachably connected a little.
Optionally, the tie-beam includes：
Vertical beam is connected, the connection vertical beam has cavity, and the front side wall of the connection vertical beam and rear wall are clamped and connected
In the both sides of the first order collision prevention girders；
Connect cant beam, the connection cant beam have cavity, it is described connection cant beam be connected to it is described connect vertical beam upper surface,
And relative to the connection back sweep of the vertical beam to body of a motor car, the backside top of the connection cant beam, which has, to be fitted and connected
The upright side walls of the second level collision prevention girders leading flank.
Optionally, the connection cant beam has the cavity sunken inside to the connection cant beam relative to the upright side walls
Transition side wall, the transition side wall are connected between the top of the sloping front side wall of the upright side walls and the connection cant beam.
Optionally, it is equipped with horizontal crumple muscle in the cavity of the connection cant beam and tilts crumple muscle.
The present invention also provides a kind of automobile, the automobile upper girder, rear support beam and above-described rear defence after including
Hit component.
Based on above-mentioned it is found that the present invention provides a kind of rear anti-crash component, which connects two-stage by tie-beam
There is the first energy-absorbing chamber, second level collision prevention girders to have the second energy-absorbing chamber for collision prevention girders, wherein first order collision prevention girders, wherein tie-beam
Inclination is connected between first order collision prevention girders and second level collision prevention girders, and first order collision prevention girders are mutually parallel with second level collision prevention girders,
Also, first order collision prevention girders are located at the front of second level collision prevention girders on length of wagon direction.So set, forming two-stage anticollision
Beam, when being touched after generation, first order collision prevention girders occur crumple and carry out energy-absorbing, and first order collision prevention girders are located on length of wagon direction
The second level collision prevention girders and then generation crumple energy-absorbing of back upper place, to sufficiently effective absorption collision energy.
Description of the drawings
The following drawings only does schematic illustration and explanation to the present invention, not delimit the scope of the invention.
Fig. 1 is the structural schematic diagram of rear anti-crash component in the specific embodiment of the invention；
Fig. 2 is the structural schematic diagram of first order collision prevention girders in the specific embodiment of the invention；
Fig. 3 is the structural schematic diagram of second level collision prevention girders in the specific embodiment of the invention；
Fig. 4 is the structural schematic diagram of tie-beam in the specific embodiment of the invention；
Fig. 5 is the structural schematic diagram that rear anti-crash component is assemblied in vehicle body in the specific embodiment of the invention；
Fig. 6 is the status diagram in rear anti-crash component impact test with Impactor in the specific embodiment of the invention.
Label declaration：
10 rear anti-crash components；
11 first order collision prevention girders；
111 first girders；
112 first auxiliary beams；
113 first energy-absorbing chambers；
114 first connecting holes；
12 second level collision prevention girders；
121 second girders；
122 second auxiliary beams；
123 second energy-absorbing chambers；
124 second connecting holes；
125 third connecting holes；
13 tie-beams；
131 connection vertical beams；
131a front side walls；
131b rear walls；
132 connection cant beams；
132a upright side walls；
132b transition side walls；
132c sloping front side walls；
132d side walls；
132e horizontal side walls；
132f inclined rear flank walls；
133 horizontal crumple muscle；
134 tilt crumple muscle；
Upper girder after 20；
30 rear support beams；
40 B columns；
50 Impactors；
Prominent collision area before 51 low levels；
52 high-order lag collision areas；
L lags collision distance.
Specific implementation mode
In order to which the technical features, objects and effects to invention are more clearly understood, now control description of the drawings is of the invention
Specific implementation mode, in the various figures identical label indicate identical part.
Herein, " schematic " expression " serving as example, example or explanation " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to a kind of preferred or more advantageous technical solution.
To make simplified form, part related to the present invention is only schematically shown in each figure, and does not represent its work
For the practical structures of product.In addition, so that simplified form is easy to understand, there is the portion of identical structure or function in some figures
Part only symbolically depicts one of those, or has only marked one of those.
In order to solve the technical problem of the crashworthiness of rear portion of car body in the prior art and energy absorption capacity difference, the present invention carries
For a kind of rear anti-crash component of automobile, which is provided with the beam of two-stage anticollision, and energy is touched after absorbing step by step, promotes vapour
The crashworthiness of vehicle body tail, also, the structure of two-stage collision prevention girders is simple, using cavity structure, meets energy-absorbing requirement premise
Under, and meet light-weighted design requirement.
Referring to fig. 1 to fig. 4, Fig. 1 is the structural schematic diagram of rear anti-crash component in the specific embodiment of the invention；Fig. 2
For the structural schematic diagram of first order collision prevention girders in the specific embodiment of the invention；Fig. 3 is that the second level is anti-in the specific embodiment of the invention
Hit the structural schematic diagram of beam；Fig. 4 is the structural schematic diagram of tie-beam in the specific embodiment of the invention.
" front, rear, top, and bottom, inside and outside " are with by rear anti-crash component it should be noted that the herein presented noun of locality
It is installed up on the basis of the position after vehicle body, " preceding " refers to that the headstock direction of the length direction automobile along vehicle body, " rear " refer to
It is the tailstock direction of automobile, "upper" refers to that roof direction, the "lower" of the short transverse automobile along vehicle body refer to the vehicle of automobile
Bottom direction, "inner" refer to that the internal direction towards automobile, "outside" refer to the outside direction towards automobile.These nouns of locality
Using merely to clearly show that technical solution, the claimed technical solution of the application is not construed as limiting.
In a particular embodiment, a kind of rear anti-crash component 10 of automobile provided by the invention include first order collision prevention girders 11,
Second level collision prevention girders 12 and tie-beam 13.
As depicted in figs. 1 and 2, there is first order collision prevention girders 11 first energy-absorbing chamber 113, the first order collision prevention girders 11 can lead to
The collision energy that the first energy-absorbing chamber 113 touches after is crossed, also, the weight of first order collision prevention girders 11 can also be mitigated, meets vehicle
The light-weighted design requirement of body.
As shown in figures 1 and 3, there is second level collision prevention girders 12 second energy-absorbing chamber 123, the second level collision prevention girders 12 can lead to
The collision energy that the second energy-absorbing chamber 123 touches after is crossed, also, the weight of second level collision prevention girders 12 can also be mitigated, meets vehicle
The light-weighted design requirement of body；Also, second level collision prevention girders 12 are arranged in parallel with first order collision prevention girders 11.
As shown in Figure 1, the inclination of tie-beam 13 is connected between first order collision prevention girders 11 and second level collision prevention girders 12, also,
First order collision prevention girders 11 are in length of wagon direction line position in the front of second level collision prevention girders 12.
By the rear anti-crash component 10 of above structure, two-stage collision prevention girders, when being touched after generation, first order collision prevention girders 11 are formed
Crumple occurs and carries out energy-absorbing, on length of wagon direction in turn positioned at the second level collision prevention girders 12 of 11 back upper place of first order collision prevention girders
Crumple energy-absorbing occurs, to sufficiently effective absorption collision energy.
As shown in Figure 1, the sectional dimension of first order collision prevention girders 11 is more than the sectional dimension of second level collision prevention girders 12.
As shown in Figure 1 and Figure 5, first order collision prevention girders 11 are located on bodywork height direction under second level collision prevention girders 12
Side, in conjunction with above-described embodiment, after which is mounted on vehicle body, the second level collision prevention girders 12 are anti-positioned at the first order
Hit the back upper place of beam 11.
Further, the structure of first order collision prevention girders 11 is optimized, it is shown in Figure 2.
First order collision prevention girders 11 have the first girder 111 of the width direction extension along body of a motor car, by the first girder 111
Both ends respectively to the first auxiliary beam 112 of the front bending of body of a motor car, wherein 112 vertical first girder 111 of the first auxiliary beam.
The first order collision prevention girders 11 of the structure are integrally formed by three-dimensional bender.
Also, in conjunction with shown in Fig. 1 and Fig. 2, the first auxiliary beam 112 is detachably connected on the interior of the rear upper girder 20 of body of a motor car
Side, the rear of the first girder 111 upper girder 20 after being located at, that is to say, that the first girder 111 to the rear of vehicle body it is prominent after on
The rear end of girder 20, so that the first girder 111 collides energy-absorbing prior to rear upper girder 20.
Further, as soon as above the formation of girder 20 is detachably connected a little after the first order collision prevention girders 11 and each,
It is to say, two first auxiliary beams 112 are detachably connected on the medial surface of the rear upper girder 20 of respective side respectively.In specific embodiment
In, there is the first connecting hole 114, the connecting hole of upper girder 20 after corresponding, to be fixed by screw connection manner on the first auxiliary beam 112
Connection.
Design is advanced optimized to the structure of second level collision prevention girders 12, it is shown in Figure 3.
Second level collision prevention girders 12 have the second girder 121 of the width direction extension along body of a motor car, by the second girder 121
Both ends respectively to the second auxiliary beam 122 of the front bending of body of a motor car, also, 122 vertical second girder 121 of the second auxiliary beam.
The second level collision prevention girders 12 of the structure are integrally formed by three-dimensional bender.
In conjunction with shown in Fig. 1 and Fig. 3, the second auxiliary beam 122 is detachably connected on the medial surface of the rear support beam 30 of body of a motor car,
And second girder 121 be located at the rear of rear support beam 30 so that the second girder 121 is to the prominent rear support beam in the rear of vehicle body
30, the rear end of upper 20 upper surface of girder after being fixed on of rear support beam 30.After second level collision prevention girders 12 are located at first order collision prevention girders 11
The top of side is used for the anti-collision energy absorption of the second level.
Further, second level collision prevention girders 12 form two releasable connection points with each rear support beam 30, and two removable
Unload connection front-back staggered along bodywork height direction.In a particular embodiment, two second companies are opened up on the second auxiliary beam 122 respectively
Connect hole 124, two connecting holes in corresponding rear support beam 30, to be fixedly connected by screw connection manner.
Design is advanced optimized to the structure of tie-beam 13, it is shown in Figure 4.
The tie-beam 13 includes connection vertical beam 131 and connection cant beam 132.Wherein, connection vertical beam 131 has cavity, in conjunction with
Shown in Fig. 1 and Fig. 4, the front side wall 131a and rear wall 131b of the connection vertical beam 131 are clamped and connected in first order collision prevention girders 11
Both sides limit to be clamped, then connection vertical beam 131 is fixed with first order collision prevention girders 11 by screw connection manner.
Connecting cant beam 132, there is cavity, connection cant beam 132 to be connected to the upper surface of connection vertical beam 131 and relative to connection
To the back sweep of body of a motor car, the backside top of connection cant beam 132 has to be fitted and connected in second level collision prevention girders 12 vertical beam 131
The upright side walls 132a of leading flank.In a particular embodiment, connect as shown in figure 3, opening up two thirds in second level collision prevention girders 12
Hole 125 is connect, is fastened by two 124 fit connection of the second connecting hole and upright side walls 132a, it specifically can be by the side that is spirally connected
Formula connects.
Further, connection cant beam 132 has the cavity sunken inside to connection cant beam 132 relative to upright side walls 132a
Transition side wall 132b, connection cant beam 132 form avoiding space at transition side wall 132b.Also, transition side wall 132b connections
Between upright side walls 132a and the top of sloping front side wall 132c.
Specifically, the connection cant beam 132 also have side wall 132d, side wall 132d connections sloping front side wall 132c and
Transition side wall 132b.
The connection cant beam 132 also has horizontal side wall 132e and inclined rear flank wall 132f, inclined rear flank wall 132f parallel
Sloping front side wall 132c, also, its bottom end is connected to the upper surface of connection vertical beam 131, and top connects horizontal side wall 132e, leads to
Cross horizontal side wall 132e connection upright side walls 132a and inclined rear flank wall 132f.
Further, in a particular embodiment, it is equipped with horizontal crumple muscle 133 in the cavity of connection cant beam 132 and tilts and burst
Contracting muscle 134 enhances collision performance and the suction of the rear anti-crash component 10 to promote the performance for the crumple energy-absorbing for connecting cant beam 132
It can performance.
As shown in fig. 6, in impact test, collision when being touched after being occurred by the simulation of Impactor 50, to verify above-mentioned reality
Apply the crashworthiness and energy absorption performance of rear anti-crash component 10 in example.
Wherein, Impactor 50 includes prominent collision area 51 and high-order lag collision area 52 before low level, and a high position, which lags, collides
Region 52 extends along bodywork height direction, also, collision area 51 of dashing forward before low level is in the high-order front surface for lagging collision area 52
It is prominent.Dash forward on bodywork height direction, before low level collision area 51 collision area have with first order collision prevention girders 11 and after
The region that upper girder 20 is overlapped；On bodywork height direction, the collision area of high position lag collision area 52 has and the second level
The region that collision prevention girders 12 are overlapped.Collision area 51 of dashing forward on bodywork height direction, before low level avoids second level collision prevention girders 12, i.e., should
Second level collision prevention girders 12 are not by the collision for collision area 51 of dashing forward before low level.It lags collision distance L and is more than second level collision prevention girders 12
Rear end relative to first order collision prevention girders 11 is to vehicle body rear distance outstanding, so that first order collision prevention girders 11 preferentially occur
Crumple deforms, and after certain deformation occurs, and second level collision prevention girders 12 are occurred by high position lag collision area 52 collision again
Crumple deforms, and first order collision prevention girders 11 protrude the distance of 20 rear end of back buffer beam not less than lag collision distance L, so that
Upper girder 20 collides after second level collision prevention girders 12 are preferential.Wherein, lag collision distance L is equal to prominent collision area 51 before low level
In the front surface size outstanding of high-order lag collision area 52.
By above-mentioned position relationship in rear anti-crash component 10 between first order collision prevention girders 11 and second level collision prevention girders 12,
Two groups with the optimization design of the position relationship of upper girder 20 after vehicle body so that when collision, first order collision prevention girders 11, second level anticollision
Beam 12, crumple deformation occurs successively for upper girder 20 afterwards, to form the rear anti-crash component 10 of energy-absorbing step by step.Specifically, the first order
Collision prevention girders 11 are first subjected to collision, and after certain crumple deformation occurs, and second level collision prevention girders 12 are collided by high position lag again
Crumple deformation occurs for the collision in region 52, and under the action of tie-beam 13, first order collision prevention girders 11 and second level collision prevention girders 12
Connection forms the rear anti-crash component 10 with certain rigidity, and the two crumple simultaneously deforms, after it carries out sufficient crumple deformation,
Again by touching energy after rear 20 energy-absorbing of upper girder, in such manner, it is possible to impact force after fully mitigating, upper master after avoiding a large amount of rear impact forces from being transferred to
Beam 20 alleviates the impact force that B columns 40 are transferred to by rear upper girder 20, the safety of effective protection crew module.
It should be noted that " first, second " used herein distinguishes girder, auxiliary beam, energy-absorbing chamber, using " the
One, second, third " connecting hole is distinguished, it is only for clearly state technical solution, do not represent primary and secondary, important suitable
Sequence etc., above-mentioned statement are not construed as limiting the technical solution of the application.
Based on the various embodiments described above, the present invention provides a kind of rear anti-crash component 10, which passes through tie-beam
There is the first energy-absorbing chamber 113, second level collision prevention girders 12 to have second to inhale for 13 connection two-stage collision prevention girders, wherein first order collision prevention girders 11
Energy chamber 123, wherein the inclination of tie-beam 13 is connected between first order collision prevention girders 11 and second level collision prevention girders 12, first order anticollision
Beam 11 is mutually parallel with second level collision prevention girders 12, also, first order collision prevention girders 11 are anti-positioned at the second level on length of wagon direction
Hit the front of beam 12.So set, forming two-stage collision prevention girders, when being touched after generation, first order collision prevention girders 11 occur crumple and carry out
Energy-absorbing, positioned at the second level collision prevention girders 12 of 11 back upper place of first order collision prevention girders and then generation crumple suction on length of wagon direction
Can, to sufficiently effective absorption collision energy.
In addition to above-mentioned rear anti-crash component 10, the present invention also provides a kind of automobile, the automobile upper girder 20 after including, B columns 40,
Rear support beam 30, rear upper girder 20 are connected to the trailing flank of B columns 40, the upper surface of upper girder 20 after being connected to of rear support beam 30
Rear end.It further include the rear anti-crash component 10 in the various embodiments described above.Its rear anti-crash component 10 and upper girder 20, rear support beam afterwards
30 connection relation can be found in above-mentioned elaboration, also, since above-mentioned rear anti-crash component 10 has the above technique effect, after having this
The automobile of bumper assembly 10 should also be as technique effect having the same.
Herein, "one" is not offered as the quantity of relevant portion of the present invention being limited to " only this ", and " one
It is a " do not indicate that the situation of the quantity " more than one " for excluding relevant portion of the present invention.
Herein, "upper", "lower", "front", "rear" etc. are only used for indicating the relative position relation between relevant portion, and
The absolute position of these non-limiting relevant portions.
Unless otherwise indicated, numberical range herein includes not only the entire scope in two endpoint, also includes containing
In several subranges therein.
It should be appreciated that although this specification is described according to each embodiment, not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solution in each embodiment may also be suitably combined to form people in the art
The other embodiment that member is appreciated that.
The series of detailed descriptions listed above only for the present invention feasible embodiment specifically
It is bright, and not to limit the scope of the invention, it is all without departing from equivalent embodiments made by technical spirit of the present invention or
Change, such as the combination, segmentation or repetition of feature, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of rear anti-crash component of automobile, which is characterized in that the rear anti-crash component (10) includes：
First order collision prevention girders (11), the first order collision prevention girders (11) have the first energy-absorbing chamber (113)；
Second level collision prevention girders (12), the second level collision prevention girders (12) have the second energy-absorbing chamber (123), the second level collision prevention girders
(12) it is arranged in parallel with the first order collision prevention girders (11)；
Tie-beam (13), the tie-beam (13) tilt and are connected to the first order collision prevention girders (11) and the second level collision prevention girders
(12) between, wherein the first order collision prevention girders (11) are located at the front of second level collision prevention girders (12) on length of wagon direction.
2. rear anti-crash component as described in claim 1, which is characterized in that the sectional dimension of the first order collision prevention girders (11) is big
In the sectional dimension of the second level collision prevention girders (12).
3. rear anti-crash component as described in claim 1, which is characterized in that the first order collision prevention girders (11) are in bodywork height side
It is located at the lower section of the second level collision prevention girders (12) upwards.
4. rear anti-crash component as described in claim 1, which is characterized in that the first order collision prevention girders (11) have along Automobile
The first girder (111) that the width direction of body extends, from the both ends of first girder (111) respectively to the front of body of a motor car
First auxiliary beam (112) of bending, vertical first girder (111) of the first auxiliary beam (112)；
The second level collision prevention girders (12) have the second girder (121) that the width direction along body of a motor car extends, by described the
Respectively to the second auxiliary beam (122) of the front bending of body of a motor car, the second auxiliary beam (122) is hung down at the both ends of two girders (121)
Straight second girder (121).
5. rear anti-crash component as claimed in claim 4, which is characterized in that the first auxiliary beam (112) is detachably connected on vapour
The medial surface of the rear upper girder (20) of vehicle vehicle body, and first girder (111) is located at the rear of the rear upper girder (20)；Institute
State the medial surface that the second auxiliary beam (122) is detachably connected on the rear support beam (30) of body of a motor car, and second girder (121)
Rear positioned at the rear support beam (30), after the rear support beam (30) fixes upper girder (20) upper surface in the rear
End.
6. rear anti-crash component as claimed in claim 5, which is characterized in that the first auxiliary beam (112) and the rear upper girder
(20) it forms one to be detachably connected a little, the second auxiliary beam (122) forms two with the rear support beam (30) and detachably connects
Contact.
7. rear anti-crash component as described in claim 1, which is characterized in that the tie-beam (13) includes：
Vertical beam (131) is connected, the connection vertical beam (131) has cavity, and the front side wall (131a) of the connection vertical beam (131)
It is clamped and connected in the both sides of the first order collision prevention girders (11) with rear wall (131b)；
Cant beam (132) is connected, the connection cant beam (132) has cavity, and it is perpendicular that the connection cant beam (132) is connected to the connection
The upper surface of beam (131) and relative to the connection vertical beam (131) to the back sweep of body of a motor car, the connection cant beam
(132) backside top has the upright side walls (132a) being fitted and connected in second level collision prevention girders (12) leading flank.
8. rear anti-crash component as claimed in claim 7, which is characterized in that the connection cant beam (132) has relative to described
Upright side walls (132a) to it is described connection cant beam (132) cavity sunken inside transition side wall (132b), the transition side wall
(132b) be connected to the upright side walls (132a) and it is described connection cant beam (132) sloping front side wall (132c) top it
Between.
9. rear anti-crash component as claimed in claim 7, which is characterized in that be equipped with water in the cavity of the connection cant beam (132)
Flat crumple muscle (133) and inclination crumple muscle (134).
10. a kind of automobile, which is characterized in that the automobile upper girder (20), rear support beam (30) and claim after including
1-9 any one of them rear anti-crash components (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440945.3A CN108407744A (en) | 2018-05-10 | 2018-05-10 | A kind of the rear anti-crash component and automobile of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440945.3A CN108407744A (en) | 2018-05-10 | 2018-05-10 | A kind of the rear anti-crash component and automobile of automobile |
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| CN108407744A true CN108407744A (en) | 2018-08-17 |
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| CN201810440945.3A Pending CN108407744A (en) | 2018-05-10 | 2018-05-10 | A kind of the rear anti-crash component and automobile of automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590700A (en) * | 2020-12-30 | 2021-04-02 | 武汉理工大学 | Integrated multi-stage buffer automobile lower guard plate device and protection method |
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| CN208393294U (en) * | 2018-05-10 | 2019-01-18 | 北京长城华冠汽车科技股份有限公司 | A kind of the rear anti-crash component and automobile of automobile |
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| CN112590700A (en) * | 2020-12-30 | 2021-04-02 | 武汉理工大学 | Integrated multi-stage buffer automobile lower guard plate device and protection method |
| CN112590700B (en) * | 2020-12-30 | 2022-07-15 | 武汉理工大学 | Integrated multi-stage buffer automobile lower guard plate device and protection method |
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Application publication date: 20180817 |