CN201224371Y - Energy-absorbing type vehicle bumper - Google Patents
Energy-absorbing type vehicle bumper Download PDFInfo
- Publication number
- CN201224371Y CN201224371Y CNU2008200671824U CN200820067182U CN201224371Y CN 201224371 Y CN201224371 Y CN 201224371Y CN U2008200671824 U CNU2008200671824 U CN U2008200671824U CN 200820067182 U CN200820067182 U CN 200820067182U CN 201224371 Y CN201224371 Y CN 201224371Y
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- bumper
- energy
- bolt
- piston rod
- absorbing
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Abstract
The utility model discloses an energy-absorbing vehicular bumper for vehicles; and the bumper comprises a bumper panel (1), a guide supporting device (2), a cushioning energy-absorbing device assembly (8) and a bumper beam (12); one end of the guide supporting device (2) is connected with the bumper beam (12) through bolts, and the other end is connected with a vehicular bracket longeron (4) through bolts; one end of the cushioning energy-absorbing device assembly (8) is connected with the bumper beam (12) through a bumper connecting plate by bolt, and the other end is connected with the vehicular bracket longeron (4) through an angle steel longeron connecting plate (7) by bolts. The energy-absorbing vehicular bumper has the advantages that the structure is compact, the size of the structure is small, the bumper is secure and reliable and can cushion and absorb the energy through two mediums of gas and hydraulic oil, the energy-absorbing ratio is high, the original state of gas can be changed, and the dynamic stiffness of the cushioning energy-absorbing device assembly (8) can be changed; the flowing area in the process of cushioning is changed along with the cushioning process, so as to be able to obtain the satisfactory cushion effects.
Description
Technical field
The utility model relates to a kind of endergonic vehicle bumper that uses on the vehicle that travels, play the effect of buffering, is mainly used in vehicle frontal collision.
Background technology
Automobile is as the main vehicle of present land, and the personnel death that motor traffic accidents causes accounts for the first place of all kinds of death by accident numbers.Therefore, the automotive crash safety problem more and more causes people's attention, and in automobile collision procedure, what occurrence probability was the highest is the collision of automotive front, and this at first relates to the collision of front bumper.Bumper/spoiler is the important component part of modern automobile structure as safety device, and it can alleviate personal casualty degree and automobile damage rate effectively.But the bumper/spoiler at many domestic car equipments mostly is common energy-absorption type at present, their common shortcomings are can only be used under the low speed driving state, and its energy absorption performance is relatively poor, therefore, equipment has the bumper/spoiler of good energy absorption characteristics on automobile, thereby make automobile when bumping, can fully absorb collision energy, reduce the automobile damage and to occupant's injury, this has great importance for the crash survivability that improves automobile.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of novel endergonic vehicle bumper is provided, when vehicle can fully absorb the collision energy of vehicle when bumping, thereby alleviates automobile damage rate and personal casualty degree effectively.
The utility model solves the technical scheme that above-mentioned technical barrier adopts: be made of bumper fascia, guiding support device, buffering energy-absorbing device assembly and bumper beam, wherein, guiding support device one end links to each other with bumper beam by bolt, one end of buffering energy-absorbing device assembly links to each other with bumper beam with bolt by the bumper/spoiler connecting panel, the other end of guiding support device is connected with the longeron of vehicle frame by bolt, and the other end of buffering energy-absorbing device assembly is connected with the longeron of vehicle frame with bolt by angle steel longeron connecting panel.
The endergonic vehicle bumper that the utility model provides compared with prior art has following main advantage:
Compact conformation, safe and reliable, design two-stage cutoff port on buffering energy-absorbing device throttling plug.By gas in the buffering energy-absorbing device assembly of bumper/spoiler and hydraulic oil two media buffering energy-absorbing, energy-absorbing efficient height.Structure has made full use of the compressibility of gas medium and has done retracing spring, because gas spring is non-linear, makes that this buffering energy-absorbing device resilience is steady.Because the energy force rate mechanical spring of gas unit volume stored energy is much bigger, so its scantling of structure is little than metal spring.In addition, change the initial condition of gas, can change the dynamic rate of energy disperser, the design form of this cutoff port, can realize variable throttling, flow area changes with the variation of buffering course in the buffering course, and the compensator or trimmer pressure in the cushion chamber keeps evenly or changes according to certain rules, can obtain satisfied buffering energy-absorbing effect.
Description of drawings
Fig. 1 is structure of the present utility model and is contained in scheme drawing on the chassis side rail 4.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is that the C-C of Fig. 1 is to view.
Fig. 4 is that the B of Fig. 1 is to view.
Fig. 5 is the structural representation of buffering energy-absorbing device assembly 8.
Fig. 6 is the structural representation of guiding support device 2.
Among the figure: 1. bumper fascia; 2. guiding support device; 3. weldment; 4. chassis side rail; 5. bolt; 6. strengthening rib; 7. angle steel longeron connecting panel; 8. buffering energy-absorbing device assembly; 9. tie bolt; 10. bumper/spoiler connecting panel; 11. clamping fastener; 12. bumper beam; 13. hydraulic oil; 14. floating piston; 15. nitrogen; 16. piston rod; 17. binding bolt; 18. hydraulic actuating cylinder; 19. seal ring; 20. throttling plug; 21. one-level cutoff port; 22. two-step throttle hole; 23. screw; 24. sliding tray.
The specific embodiment
The utility model is described in further detail below in conjunction with example and accompanying drawing.
The endergonic vehicle bumper that the utility model provides, its structure such as Fig. 1 are to shown in Figure 6: comprise bumper beam 12, guiding support device 2 and buffering energy absorber assembly 8.Because the quality of bumper beam 12 is relatively big, therefore adopt guiding support device 2 and buffering energy absorber assembly 8 to come together support, and guiding support device 2 can combined action absorb the energy that impacts with buffering energy absorber assembly 8 when collision happens.Wherein: an end of guiding support device 2 links to each other with bumper beam 12 by bolt, and the other end of guiding support device 2 is connected with chassis side rail 4 by tie bolt 9.One end of buffering energy-absorbing device assembly 8 links to each other with bumper beam 12 with bolt by the bumper/spoiler connecting panel, and the other end of buffering energy-absorbing device assembly 8 is connected with chassis side rail 4 by angle steel longeron connecting panel 7 usefulness bolts 5.Angle steel longeron connecting panel 7 is provided with strengthening rib 6, to strengthen the rigidity of angle steel longeron connecting panel 7.
Described guiding support device 2, channel-section steel structure for similar vehicle frame, have a sliding tray 24 that tie bolt 9 is installed at be connected with chassis side rail 4 middle part of part of guiding support device 2, guiding support device 2 links together by screw 23 and chassis side rail 12.When being collided, guiding support device 2 chassis side rail 4 relatively cushions the absorption portion energy along tie bolt 9 slide relative (see figure 6)s.
Described buffering energy-absorbing device assembly 8, its structure be as shown in Figure 5: be provided with piston rod 16, this piston rod is a hollow structure, and its front end is connected (see figure 3) with bumper/spoiler attaching parts 10 with bumper beam 12 by bolt; Be provided with floating piston 14 and throttling plug 20, floating piston 14 is arranged in the inner chamber of piston rod 16, and this piston is divided into left and right two chambeies with the inner chamber of piston rod 16, and by seal ring 19 sealings that are contained on the floating piston 14, chamber, a left side is full of nitrogen 15, and right chamber is full of hydraulic oil 13; Throttling plug 20 is arranged in the inner chamber of hydraulic actuating cylinder 18.Piston rod 16 external cylindrical surfaces and hydraulic actuating cylinder 18 inner cylinder face bearing fits.Hydraulic actuating cylinder 18 is by binding bolt 17 (see figure 1) that links to each other with the weldment 3 of chassis side rail 4.
Described throttling plug 20 is provided with the two-stage cutoff port, i.e. one-level cutoff port 21 and two-step throttle hole 22 (see figure 5)s.Hydraulic oil in the hydraulic actuating cylinder 18 passes through-level cutoff port 21 and two-step throttle hole 22, communicates with piston rod 16 right chambeies, constitutes the passage of hydraulic oil.
The design form in described one-level cutoff port 21 and two-step throttle hole 22 can be realized variable throttling, and flow area changes with the variation of buffering course in the buffering course, and the compensator or trimmer pressure in the cushion chamber keeps evenly or changes according to certain rules.The initial condition of gas can change, thereby realizes changing the dynamic rate of buffering energy-absorbing device assembly 8.
Described buffering energy-absorbing device assembly 8 can be according to the location arrangements of chassis side rail 4.
The cross section of described bumper beam 12 is a grooved, and bumper fascia 1 embeds in the groove of bumper beam 12, and by clamping fastener 11 continuous (seeing Fig. 2 and Fig. 4).
Brief description principle of work of the present utility model (with reference to Fig. 5):
Impact process: when automobile and obstacle bump, the impulsive force that bumper/spoiler is subjected at first passes on the piston rod 16, the piston rod end moves right, extruding hydraulic oil 13, at this moment the oil pressure in the hydraulic cylinder oil pocket sharply raises under the effect of piston rod external force, and hydraulic oil just flows to piston rod 16 inner chambers by one-level cutoff port 21 and two-step throttle hole 22, promotes floating piston 14 and is moved to the left, and nitrogen 15 is compressed, at this moment gas also plays the effect of shock absorbing energy.Impact load is under reducing soon under the effect of buffering energy-absorbing device assembly 8, and viscous resistance when utilizing hydraulic oil by cutoff port like this and gas compression absorb the energy of bump.Because the throttling action of fluid, the kinetic energy overwhelming majority of alluvium changes the heat energy of fluid into, and is dissipated by air.
Springback process: buffering energy-absorbing assembly 8 can be moved with respect to vehicle frame along guiding support device 2 in collision, the energy when further alleviating collision.Power is restored by the nitrogen gas generation in piston rod 16 chambeies in the bump back, and promotion floating piston 14 moves to right bumper/spoiler is resetted.
Claims (6)
1. endergonic vehicle bumper, by bumper fascia (1), guiding support device (2), buffering energy-absorbing device assembly (8) and bumper beam (12) constitute, an end that it is characterized in that guiding support device (2) links to each other with bumper beam (12) by bolt, one end of buffering energy-absorbing device assembly (8) links to each other with bumper beam (12) with bolt by bumper/spoiler connecting panel (10), the other end of guiding support device (2) is connected with chassis side rail (4) by bolt, and the other end of buffering energy-absorbing device assembly (8) is connected with chassis side rail (4) with bolt by angle steel longeron connecting panel (7).
2. endergonic vehicle bumper as claimed in claim 1 is characterized in that: at be connected with chassis side rail (4) middle part of part of guiding support device (2), have a sliding tray (24) that tie bolt (9) is installed.
3. endergonic vehicle bumper as claimed in claim 1, the structure that it is characterized in that buffering energy-absorbing device assembly (8) is: be provided with piston rod (16), this piston rod is a hollow structure, and its front end is connected with bumper beam (12) with bumper/spoiler connecting panel (10) by bolt; Be provided with floating piston (14) and throttling plug (20), floating piston (14) is arranged in the inner chamber of piston rod (16), and throttling plug (20) is hollow structure and the inner chamber that is arranged in hydraulic actuating cylinder (18); Piston rod (16) external cylindrical surface and hydraulic actuating cylinder (18) inner cylinder face bearing fit.
4. endergonic vehicle bumper as claimed in claim 3 is characterized in that throttling plug (20) is provided with one-level cutoff port (21) and two-step throttle hole (22).
5. as claim 3 or 4 described endergonic vehicle bumpers, it is characterized in that floating piston (14) is divided into left and right two chambeies with the inner chamber of piston rod (16), left chamber is full of nitrogen (15), and right chamber is full of hydraulic oil (13); Hydraulic oil (13) in the hydraulic actuating cylinder (18) communicates with the right chamber of piston rod (16) by one-level cutoff port (21) and two-step throttle hole (22).
6. endergonic vehicle bumper as claimed in claim 1, the cross section that it is characterized in that bumper beam (12) is a grooved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200671824U CN201224371Y (en) | 2008-05-15 | 2008-05-15 | Energy-absorbing type vehicle bumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200671824U CN201224371Y (en) | 2008-05-15 | 2008-05-15 | Energy-absorbing type vehicle bumper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201224371Y true CN201224371Y (en) | 2009-04-22 |
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ID=40597251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200671824U Expired - Fee Related CN201224371Y (en) | 2008-05-15 | 2008-05-15 | Energy-absorbing type vehicle bumper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201224371Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104842906A (en) * | 2014-08-20 | 2015-08-19 | 北汽福田汽车股份有限公司 | Energy absorption buffering device, anti-collision structure and vehicle |
| CN104999977A (en) * | 2015-03-29 | 2015-10-28 | 厦门理工学院 | Five-level gradual-type gas-liquid-solid coupling collision energy absorption device and application |
| CN107206953A (en) * | 2015-02-06 | 2017-09-26 | 新日铁住金株式会社 | The end structure of vehicle |
| CN109923001A (en) * | 2016-11-08 | 2019-06-21 | 马自达汽车株式会社 | The impact absorbing structure of vehicle |
-
2008
- 2008-05-15 CN CNU2008200671824U patent/CN201224371Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104842906A (en) * | 2014-08-20 | 2015-08-19 | 北汽福田汽车股份有限公司 | Energy absorption buffering device, anti-collision structure and vehicle |
| CN104842906B (en) * | 2014-08-20 | 2017-04-05 | 北汽福田汽车股份有限公司 | Energy-absorbing buffer device, anti-collision structure and vehicle |
| CN107206953A (en) * | 2015-02-06 | 2017-09-26 | 新日铁住金株式会社 | The end structure of vehicle |
| US10427633B2 (en) | 2015-02-06 | 2019-10-01 | Nippon Steel Corporation | End structure of vehicle |
| CN107206953B (en) * | 2015-02-06 | 2019-12-17 | 日本制铁株式会社 | End structure of vehicle |
| CN104999977A (en) * | 2015-03-29 | 2015-10-28 | 厦门理工学院 | Five-level gradual-type gas-liquid-solid coupling collision energy absorption device and application |
| CN104999977B (en) * | 2015-03-29 | 2017-09-29 | 厦门理工学院 | A kind of gradual gas-liquid-solid coupling collision energy-absorbing device of Pyatyi |
| CN109923001A (en) * | 2016-11-08 | 2019-06-21 | 马自达汽车株式会社 | The impact absorbing structure of vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20120515 |