CN204870888U - Collision energy -absorbing device with pedestrian protect function - Google Patents
Collision energy -absorbing device with pedestrian protect function Download PDFInfo
- Publication number
- CN204870888U CN204870888U CN201520457156.2U CN201520457156U CN204870888U CN 204870888 U CN204870888 U CN 204870888U CN 201520457156 U CN201520457156 U CN 201520457156U CN 204870888 U CN204870888 U CN 204870888U
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- CN
- China
- Prior art keywords
- push rod
- energy
- predeformation
- absorbing
- pedestrian
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Vibration Dampers (AREA)
Abstract
The utility model discloses a collision energy -absorbing device with pedestrian protect function, include the preceding connecting plate that is connected with front bumper, be provided with the direction push rod on the preceding connecting plate in direction push rod front end extended to the front longitudinal, the cover was equipped with the back connecting plate on the direction push rod that lies in front longitudinal position department, overlapped the predeformation shell pipe that is equipped with fold structures on the direction push rod that lies in the front longitudinal predeformation shell outside of tubes end is provided with the foam piece. The utility model has the advantage of simple structure, simple to operate, inside placing the longeron in, more traditional energy -absorbing structure occupation space is littleer, has improved the space utilization who starts the machinery room to arrange, predeformation shell pipe can the rule expand, and the energy -absorbing is effectual, the energy -absorbing structure is favorable to the pedestrian to protect.
Description
Technical field
The utility model relates to field of automobile safety, especially relates to a kind of collision energy-absorbing device with pedestrian protecting function.
Background technology
The passive satety impact of performance on vehicle of front end crash crash energy absorption equipment is larger.By arranging foam block in front bumper beam front end, as vehicle and pedestrian collision, foam block plays the effect protection goers outside vehicle of buffering energy-absorbing.During vehicle generation high-speed crash, under impact force effect, the kinetic transformation of vehicle is energy in self by energy-absorption box generation plastic deformation, thus plays the effect of protection passenger.How making energy-absorption box with stable, by controlled mode and maximum absorption collision energy, is the key point in its design process.Current Automobile energy absorption box structure, is based on utilizing induction groove to guide thin-wall pipe or cross section to be a kind of mentalities of designing that polygonal thin-wall part produces crumple distortion energy-absorbing mostly, and has its weak point based on the energy-absorption box structure that this thinking designs.In fact do not have the energy-absorption box of inducement structure in actual collision, be difficult to the distortion of generation rule, and first peak value producing drag during conquassation is very high.Higher crushing force peak value then can produce higher crash acceleration value, does not utilize the protection of vehicle body occupant.Given this, usually need on energy-absorption box, to arrange a series of induction groove by optimal design or optimize the profile of energy-absorption box, make it produce distortion along inducement structure as much as possible, based on such distortion, its energy-absorbing is maximized.But such distortion is also with good conditionsi, when load is along energy-absorption box length direction, energy-absorption box shows good disruption properties, and when the two direction is inconsistent, often conquassation not exclusively or can not produce distortion along inducement structure.Therefore, the effect as collision energy absorbing box can not likely be played.In addition, if generation buckling deformation still collapses, this thing of distortion changes according to the difference of the angle of applying impact load, and the shock absorbing capability of collision energy absorbing box is also just unstable.And inducement structure weakens energy-absorption box intensity, its energy absorbing efficiency decreases.
Summary of the invention
The utility model object is the collision energy-absorbing device with pedestrian protecting function providing a kind of pedestrian protecting and collision energy-absorbing function to unite two into one.
For achieving the above object, the utility model can take following technical proposals:
The collision energy-absorbing device with pedestrian protecting function described in the utility model, comprises connecting panel before being connected with front bumper; Described front connecting panel is provided with guiding push rod, extend in front side member in described guiding push rod front end, connecting panel after the guiding push rod being positioned at front side member position is set with, the guiding push rod being positioned at front side member is set with the predeformation shell pipe of pleated structure, described predeformation shell pipe outer end is provided with foam block.
Described guiding push rod is hollow solid drawn pipe.
The utility model advantage is that structure is simple, easy for installation; Be placed in rail inner, more traditional endergonic structure takes up room less, improves the space availability ratio that engine bin is arranged; Predeformation shell pipe can rule launch, and energy-absorbing effect is good; Endergonic structure is conducive to pedestrian protecting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is scheme of installation of the present utility model.
Detailed description of the invention
As shown in Figure 1, 2, the collision energy-absorbing device with pedestrian protecting function described in the utility model, comprises connecting panel 2 before being connected with front bumper 1; Described front connecting panel 2 is provided with guiding push rod 3, extend in front side member 4 in described guiding push rod 3 front end, connecting panel 5 after the guiding push rod 3 being positioned at front side member 4 position is set with, the guiding push rod 3 being positioned at front side member 4 is set with the predeformation shell pipe 6 of pleated structure, described predeformation shell pipe 6 outer end is provided with foam block 7; Described guiding push rod 3 is hollow solid drawn pipe.
Predeformation shell pipe 6 is by being that the thin-wall part conquassation of any shape changeable or circle obtains by cross sectional shape, final formation pleated structure, each fold can form a plastic hinge, forms prestress simultaneously, make predeformation shell pipe 6 keep higher bulk strength due to the distortion of shell; In order to protect the object of pedestrian when reaching low speed; foam block 7 is built in predeformation shell pipe 6 outer end; guiding push rod 3 length is greater than the length of predeformation shell pipe 6; when collision occurs; guiding push rod 3 promotes predeformation shell pipe 6 under external force backward, and the plastic hinge of predeformation shell pipe 6 launches to absorb collision energy.
Claims (2)
1. there is a collision energy-absorbing device for pedestrian protecting function, comprise the front connecting panel (2) be connected with front bumper (1); It is characterized in that: on described front connecting panel (2), be provided with guiding push rod (3), extend in front side member (4) in described guiding push rod (3) front end, the guiding push rod (3) being positioned at front side member (4) position is set with rear connecting panel (5), the guiding push rod (3) being positioned at front side member (4) is set with the predeformation shell pipe (6) of pleated structure, described predeformation shell pipe (6) outer end is provided with foam block (7).
2. the collision energy-absorbing device with pedestrian protecting function according to claim 1, is characterized in that: described guiding push rod (3) is hollow solid drawn pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520457156.2U CN204870888U (en) | 2015-06-30 | 2015-06-30 | Collision energy -absorbing device with pedestrian protect function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520457156.2U CN204870888U (en) | 2015-06-30 | 2015-06-30 | Collision energy -absorbing device with pedestrian protect function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204870888U true CN204870888U (en) | 2015-12-16 |
Family
ID=54815301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520457156.2U Expired - Fee Related CN204870888U (en) | 2015-06-30 | 2015-06-30 | Collision energy -absorbing device with pedestrian protect function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204870888U (en) |
-
2015
- 2015-06-30 CN CN201520457156.2U patent/CN204870888U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20210630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |