CN103600711A - Active-extension energy-absorption bumper of minibus - Google Patents

Active-extension energy-absorption bumper of minibus Download PDF

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Publication number
CN103600711A
CN103600711A CN201310631415.4A CN201310631415A CN103600711A CN 103600711 A CN103600711 A CN 103600711A CN 201310631415 A CN201310631415 A CN 201310631415A CN 103600711 A CN103600711 A CN 103600711A
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CN
China
Prior art keywords
bumper
energy
extension
active
thread
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CN201310631415.4A
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Chinese (zh)
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CN103600711B (en
Inventor
齐晓杰
王强
杨兆
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黑龙江工程学院
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Abstract

The invention discloses an active-extension energy-absorption bumper of a minibus, wherein the active-extension energy-absorption bumper of the minibus lowers damage to a minibus body and injuries to a driver and passengers and improves safety. The active-extension energy-absorption bumper of the minibus comprises a left frame carling, a right frame carling and a bumper body, wherein the bumper body is arranged at the front end of the left frame carling and the front end of the right frame carling. The active-extension energy-absorption bumper of the minibus further comprises an energy absorption device and an active extension mechanism, wherein two threaded barrels of the energy absorption device are designed to be respectively provided with a smooth cylindrical hole start segment and a threaded hole main body segment; forward guiding cylinder heads at the rear ends of two drop bars are matched with inner diameter cylindrical surfaces of the threaded hole main body segments for installation; backward ejecting cylindrical sections at the rear ends of the two drop bars are matched with the smooth cylindrical hole start segments for installation; the smooth cylindrical hole start segments are matched with each other for clamping a shearing sleeve; the active extension mechanism is arranged at the rear ends of the two threaded barrels. The active-extension energy-absorption bumper of the minibus is applicable to minibus bumper energy-absorption area increase by means of active extension and impact energy absorption.

Description

Utility van initiatively extends energy-absorbing bumper
Technical field
The invention belongs to a kind of Federal bumper, more particularly, relate to a kind of utility van and initiatively extend energy-absorbing bumper.
Background technology
Along with economic development and scientific and technological progress, automobile has been come in increasing family.Automobile pollution constantly increases, and the performance of automobile has had qualitative leap, and road conditions also improves greatly.The speed that automobile travels on road is also more and more faster, and the thing followed is the sharply rising of accident rate, not only can cause huge property damage, is also threatening driver and crew's life security.Therefore, the research of Crash Safety Design of Vehicles is a large problem can not be ignored.And the collision case rate of automotive front accounts for the more than 60% of total accident rate.Its harmfulness is also sizable.And in kinds of automobile, harm during utility van collision is maximum, in increasing utility van traffic accident, because the front structure of utility van is without machinery space, thereby there is no chaufeur that the region of enough absorption collision energies causes and the injures and deaths situation of copilot when collision, be heavy.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, the utility van that provide a kind of and reduce vehicle body infringement, reduces driver and crew's injury, improves safety initiatively extends energy-absorbing bumper.
In order to solve the technical matters of above-mentioned existence, the present invention adopts following technical proposals: utility van of the present invention initiatively extends energy-absorbing bumper, comprise two of left and right chassis side rail and the bumper/spoiler of these two chassis side rail front ends in left and right is set, and being arranged on rear whippletree, middle whippletree between the chassis side rail of two of this left and right.Also comprise energy absorption device and active extension mechanism, this energy absorption device comprises extension thick stick, drop bar, thread barrel, shear sleeve, extend transverse concave groove that thick stick is provided with by it inlay be arranged on bumper/spoiler just before, two symmetrical can being arranged on slidingly back and forth inside the chassis side rail of two of left and right of thread barrel, these two thread barrels are designed to smooth cylindrical hole the initial segment and tapped bore main paragraph, this smooth cylindrical hole diameter equates with this tapped bore external diameter, two drop bar rear ends are designed to leading to socket cap and rear top pressure cylindrical section, two drop bar rear ends are inserted into respectively in two thread barrels, and this is leading coordinates installation to socket cap with this tapped bore main paragraph internal diameter face of cylinder, this rear top presses cylindrical section to coordinate installation with this smooth cylindrical hole the initial segment, on this rear top, press between cylindrical section front end and tapped bore main paragraph outer end, and coordinate and clamp shearing sleeve with smooth cylindrical hole the initial segment, make the leading of this drop bar press looping between cylindrical section to inhale bits groove to socket cap and rear top, these two drop bar front ends are provided with thread segment, the front end thread segment of these two drop bars is fixedly mounted with extension thick stick, these two thread barrel rear ends arrange initiatively extension mechanism.
As preferred version of the present invention, described active extension mechanism is by slide rail, push rod, fork, pole, oil cylinder forms, two slide rails are symmetrical set two chassis side rail inner sides in left and right, described two thread barrels can be separately positioned on two slide rails slidingly back and forth, two mount pads are symmetrical set on middle whippletree, and these two mount pad hinge-points and this two thread barrel rear end seat hinge-points are in same line of centers, two push rods, two forks, two poles, an oil cylinder is in same level, these two push rod front ends and this two thread barrel rear end seats are hinged, these two fork rear ends are hinged with these two mount pads respectively, these two push rod rear ends and this two fork front portions are hinged, these two fork front ends are hinged with these two pole front ends respectively, these two rod rear ends are hinged for any is arranged on the piston rod front end of this oil cylinder, the rear end hinged support of this oil cylinder is on rear whippletree.
Owing to adopting technique scheme, utility van provided by the invention initiatively extends the beneficial effect that energy-absorbing bumper has and is:
The present invention, on traditional bumper system, has increased energy absorption device and active extension mechanism, and before collision occurs, initiatively the cylinder piston rod of extension mechanism stretches out, and makes in advance the extension thick stick of energy absorption device stretch out forward, thereby has increased crusherbull zone region.When collision occurs; the extension thick stick of energy absorption device is used in rigid impact masterpiece on drop bar; clash into masthead and press shearing sleeve; make to shear the negative thread in sleeve screw cutting cylinder; finally reach and destroy the endergonic effect of screw thread; final alleviate the injury that collision causes car and passengers inside the car, play certain protective effect.Test shows, can absorb collision institute energy-producing 50%, reached absorption energy, reduces the object of car and people's injury.Made up the little problem in utility van front energy-absorbing region.Obtained reducing vehicle body infringement, reduced driver and crew's injury, improved the effect of safety.
Accompanying drawing explanation
Fig. 1 is the organigram that utility van of the present invention initiatively extends energy-absorbing bumper;
Fig. 2 is the partial enlarged drawing of I in Fig. 1;
Fig. 3 is along the cutaway view of A-A line in Fig. 1;
Fig. 4 is the organigram of extension state of the present invention;
Fig. 5 is along the cutaway view of B-B line in Fig. 4.
In figure: extend thick stick 1; Bumper/spoiler 2; Drop bar 3; Slide rail 4; Thread barrel 5; Push rod 6; Fork 7; Pole 8; Oil cylinder 9; Rear whippletree 10; Middle whippletree 11; Inhale bits groove 12; Shear sleeve 13; Chassis side rail 14.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As shown in Figure 1, provided the organigram that utility van of the present invention initiatively extends the energy-absorbing bumper specific embodiment, comprise two of left and right chassis side rail 14 and the bumper/spoiler 2 of two chassis side rail 14 front ends in this left and right is set, and being arranged on rear whippletree 10, middle whippletree 11 between the chassis side rail 14 of two of this left and right.Also comprise energy absorption device and active extension mechanism, at Fig. 1, Fig. 2, in Fig. 3, this energy absorption device comprises extension thick stick 1, drop bar 3, thread barrel 5, shear sleeve 13, extend transverse concave groove that thick stick 1 is provided with by it inlay be arranged on bumper/spoiler 2 just before, two chassis side rail 14 inner sides about two symmetrical can being arranged on slidingly back and forth of thread barrel 5, these two thread barrels 5 are designed to smooth cylindrical hole the initial segment and tapped bore main paragraph, this smooth cylindrical hole diameter equates with this tapped bore external diameter, two drop bar 3 rear ends are designed to leading to socket cap and rear top pressure cylindrical section, two drop bar 3 rear ends are inserted into respectively in two thread barrels 5, and this is leading coordinates installation to socket cap with this tapped bore main paragraph internal diameter face of cylinder, this rear top presses cylindrical section to coordinate installation with this smooth cylindrical hole the initial segment, on this rear top, press between cylindrical section front end and tapped bore main paragraph outer end, and coordinate with smooth cylindrical hole the initial segment to clamp and shear sleeve 13, make the leading of this drop bar 3 press looping between cylindrical section to inhale bits groove 12 to socket cap and rear top, these two drop bar 3 front ends are provided with thread segment, the front end thread segment of these two drop bars 3 is fixedly mounted with and extends thick stick 1, these two thread barrel 5 rear ends arrange initiatively extension mechanism.
As the preferred embodiments of the present invention, at Fig. 1, Fig. 3, in Fig. 5, provided the organigram that utility van of the present invention initiatively extends the active extension mechanism specific embodiment of energy-absorbing bumper, described active extension mechanism is by slide rail 4, push rod 6, fork 7, pole 8, oil cylinder 9 forms, two slide rails 4 are symmetrical set two chassis side rail 14 inner sides in left and right, described two thread barrels 5 can be separately positioned on two slide rails 4 slidingly back and forth, two mount pads are symmetrical set on middle whippletree 11, and these two mount pad hinge-points and this two thread barrels 5 rear end seat hinge-points are in same line of centers, two push rods 6, two forks 7, two poles 8, an oil cylinder 9 is in same level, these two push rod 6 front ends and this two thread barrels, 5 rear end seats are hinged, these two fork 7 rear ends are hinged with these two mount pads respectively, these two push rod 6 rear ends and this two forks 7 are anterior hinged, these two fork 7 front ends are hinged with these two pole 8 front ends respectively, these two pole 8 rear ends are hinged for any is arranged on the piston rod front end of this oil cylinder 9, the rear end hinged support of this oil cylinder 9 is on rear whippletree 10.
During use, on the traditional bumper system of utility van, attachment face hired car initiatively extends energy-absorbing bumper, before auto against occurs, when the speed of a motor vehicle of automobile reaches 60km/h, the distance of radar dynamic measurement and front truck, by the feedback of the sensing devices such as radar and the speed of a motor vehicle, when both conditions meet, this device starts low-tension motor by ECU control command, low-tension motor drives oil pump, give the initiatively certain oil pressure of oil cylinder 9 of extension mechanism, thereby make hydraulic cylinder works, piston rod stretches out and drives two poles 8, two poles 8 drive respectively two forks 7 of both sides to take mount pad hinge-point and swing laterally as the center of circle, two forks 7 that swing laterally drive respectively hinged separately push rod 6 two thread barrels 5 of pushing tow energy absorption device forward, two thread barrels 5 extend forward by slide rail 4 straight lines of chassis side rail 14 inner sides are installed, two drop bars 3 synchronously extend forward with two thread barrels 5, two drop bars 3 make to extend thick stick 1 disengaging bumper/spoiler 2 and stretch out forward.When active extension mechanism reaches the limit of position, fork 7 becomes dead point with push rod 6 hinge-points just, thereby obtains the application force producing while being used for counteraction collision.When bumping, the extension thick stick 1 stretching out passes to two drop bars 3 power, drop bar 3 presses cylindrical section vertically masterpiece to be used in and to be sheared on sleeve 13 by rear top, makes to shear the negative thread of 5 li, sleeve 13 screw cutting cylinder, inhales bits groove 12 simultaneously and absorbs the chip producing while shearing screw thread.So just made to realize more than 50% energy producing while absorbing collision in the region of body forward structure 200mm, during vehicle body collision, energy has been cut down over half, reached the infringement that reduces vehicle body, and the injury of the impulsive force producing while having reduced collision to driver and crew on car.
After active extension mechanism stretches out energy absorption device, if crashed, the device that energy absorption device of the present invention will more renew after collision.If automobile brakes in time, this energy absorption device does not stretch out and bumps, do not meeting the speed of a motor vehicle, and in safety distance time, this active extension mechanism can start oil cylinder 9 this energy absorption device is retracted, guarantee that automobile can continue normally to travel on road, while preparing to be again about to crash, can normally extend out.
Because utility van adopts body-chassis frame construction, most of energy is absorbed by longeron.So initiatively extend energy absorption device by installing on the basis in the less energy-absorbing region of utility van, the energy-absorbing region in the time of can effectively increasing collision, reduces car and people's injury.
The present invention is applicable to utility van bumper/spoiler and initiatively extends increase energy-absorbing region and absorbing impact energy.

Claims (2)

1. a utility van initiatively extends energy-absorbing bumper, comprise left and right two chassis side raiies (14) and the bumper/spoiler (2) of two chassis side raiies in this left and right (14) front end is set, and be arranged on the rear whippletree (10) between two chassis side raiies in this left and right (14), middle whippletree (11), it is characterized in that: also comprise energy absorption device and active extension mechanism, this energy absorption device comprises extension thick stick (1), drop bar (3), thread barrel (5), shear sleeve (13), extend transverse concave groove that thick stick (1) is provided with by it inlay be arranged on bumper/spoiler (2) just before, two thread barrels (5) are symmetrical can be arranged on two chassis side raiies in left and right (14) inner side slidingly back and forth, these two thread barrels (5) are designed to smooth cylindrical hole the initial segment and tapped bore main paragraph, this smooth cylindrical hole diameter equates with this tapped bore external diameter, two drop bars (3) rear end is designed to leading to socket cap and rear top pressure cylindrical section, two drop bars (3) rear end is inserted into respectively in two thread barrels (5), and this is leading coordinates installation to socket cap with this tapped bore main paragraph internal diameter face of cylinder, this rear top presses cylindrical section to coordinate installation with this smooth cylindrical hole the initial segment, on this rear top, press between cylindrical section front end and tapped bore main paragraph outer end, and coordinate with smooth cylindrical hole the initial segment to clamp and shear sleeve (13), make the leading of this drop bar (3) press looping between cylindrical section to inhale bits groove (12) to socket cap and rear top, this two drop bars (3) front end is provided with thread segment, the front end thread segment of these two drop bars (3) is fixedly mounted with and extends thick stick (1), this two thread barrels (5) rear end arranges initiatively extension mechanism.
2. utility van according to claim 1 initiatively extends energy-absorbing bumper, it is characterized in that: described active extension mechanism is by slide rail (4), push rod (6), fork (7), pole (8), oil cylinder (9) forms, two slide rails (4) are symmetrical set two chassis side raiies (14) inner side in left and right, described two thread barrels (5) can be separately positioned on two slide rails (4) slidingly back and forth, two mount pads are symmetrical set on middle whippletree (11), and these two mount pad hinge-points and this two thread barrels (5) rear end seat hinge-point are in same line of centers, two push rods (6), two forks (7), two poles (8), an oil cylinder (9) is in same level, these two push rod (6) front ends and this two thread barrels (5) rear end seat are hinged, this two forks (7) rear end is hinged with these two mount pads respectively, these two push rod (6) rear ends and this two forks (7) are anterior hinged, this two forks (7) front end is hinged with this two poles (8) front end respectively, this two poles (8) rear end is hinged for any is arranged on the piston rod front end of this oil cylinder (9), the rear end hinged support of this oil cylinder (9) is on rear whippletree (10).
CN201310631415.4A 2013-12-02 2013-12-02 Utility van initiatively extends energy-absorbing bumper Active CN103600711B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104290703A (en) * 2014-10-27 2015-01-21 重庆市永宏陈记实业有限公司 Multistage damping type vehicle bumper device with active collision avoidance function
CN104309558A (en) * 2014-10-27 2015-01-28 重庆市永宏陈记实业有限公司 Automobile bumper with initiative collision avoidance function
CN104309557A (en) * 2014-10-27 2015-01-28 重庆市永宏陈记实业有限公司 Overspeed pre-extending vehicle bumper
CN104340150A (en) * 2014-10-27 2015-02-11 重庆市永宏陈记实业有限公司 Multi-functional automobile bumper
CN104340148A (en) * 2014-10-27 2015-02-11 重庆市永宏陈记实业有限公司 Classified damping type automobile bumper device with active anti-collision function
CN104354662A (en) * 2014-10-27 2015-02-18 重庆市永宏陈记实业有限公司 Pre-extended multistage shock absorption type car bumper device
CN105365720A (en) * 2014-08-13 2016-03-02 福特全球技术公司 Adaptive energy absorber for a vehicle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3239333A1 (en) * 1982-10-23 1984-04-26 Opel Adam Ag Bumper for motor vehicles
US6709035B1 (en) * 2002-12-19 2004-03-23 General Motors Corporation Extendible bumper system and method of control
CN2647679Y (en) * 2003-06-20 2004-10-13 雷正保 Screw shearing type vehicle collision energy absorption apparatus
CN1847056A (en) * 2005-04-12 2006-10-18 赵铁生 Freely telescopic buffering and energy absorbing vehicle bumper
CN201021238Y (en) * 2007-03-27 2008-02-13 李永祥 Anti-collision bumper assembly
CN201472283U (en) * 2009-06-12 2010-05-19 长沙理工大学 Cutting thread shear type vehicle collision energy-absorbing device
CN201559608U (en) * 2009-11-06 2010-08-25 段练 Anticollision bumper system for automobile

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3239333A1 (en) * 1982-10-23 1984-04-26 Opel Adam Ag Bumper for motor vehicles
US6709035B1 (en) * 2002-12-19 2004-03-23 General Motors Corporation Extendible bumper system and method of control
CN2647679Y (en) * 2003-06-20 2004-10-13 雷正保 Screw shearing type vehicle collision energy absorption apparatus
CN1847056A (en) * 2005-04-12 2006-10-18 赵铁生 Freely telescopic buffering and energy absorbing vehicle bumper
CN201021238Y (en) * 2007-03-27 2008-02-13 李永祥 Anti-collision bumper assembly
CN201472283U (en) * 2009-06-12 2010-05-19 长沙理工大学 Cutting thread shear type vehicle collision energy-absorbing device
CN201559608U (en) * 2009-11-06 2010-08-25 段练 Anticollision bumper system for automobile

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105365720A (en) * 2014-08-13 2016-03-02 福特全球技术公司 Adaptive energy absorber for a vehicle
CN105365720B (en) * 2014-08-13 2020-06-23 福特全球技术公司 Adaptive energy absorber for vehicle
CN104309557A (en) * 2014-10-27 2015-01-28 重庆市永宏陈记实业有限公司 Overspeed pre-extending vehicle bumper
CN104340150A (en) * 2014-10-27 2015-02-11 重庆市永宏陈记实业有限公司 Multi-functional automobile bumper
CN104340148A (en) * 2014-10-27 2015-02-11 重庆市永宏陈记实业有限公司 Classified damping type automobile bumper device with active anti-collision function
CN104354662A (en) * 2014-10-27 2015-02-18 重庆市永宏陈记实业有限公司 Pre-extended multistage shock absorption type car bumper device
CN104290703A (en) * 2014-10-27 2015-01-21 重庆市永宏陈记实业有限公司 Multistage damping type vehicle bumper device with active collision avoidance function
CN104309558A (en) * 2014-10-27 2015-01-28 重庆市永宏陈记实业有限公司 Automobile bumper with initiative collision avoidance function

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Inventor after: Wang Qiang

Inventor after: Qi Xiaojie

Inventor after: Yang Zhao

Inventor before: Qi Xiaojie

Inventor before: Wang Qiang

Inventor before: Yang Zhao