CN103600711B - Utility van initiatively extends energy-absorbing bumper - Google Patents

Utility van initiatively extends energy-absorbing bumper Download PDF

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Publication number
CN103600711B
CN103600711B CN201310631415.4A CN201310631415A CN103600711B CN 103600711 B CN103600711 B CN 103600711B CN 201310631415 A CN201310631415 A CN 201310631415A CN 103600711 B CN103600711 B CN 103600711B
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initiatively
energy
bumper
chassis
van
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CN201310631415.4A
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CN103600711A (en
Inventor
齐晓杰
王强
杨兆
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Heilongjiang Institute of Technology
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Heilongjiang Institute of Technology
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Abstract

The invention discloses a kind of utility van and initiatively extend energy-absorbing bumper.Aim to provide and a kind ofly reduce vehicle body infringement, reduce driver and crew's injury, improve the utility van of safety and initiatively extend energy-absorbing bumper.Comprise two chassis side raiies in left and right and the bumper/spoiler of two chassis side rail front ends about this is set.Also comprise energy absorption device and active extension mechanism, two thread barrels of this energy absorption device are designed to smooth cylindrical hole the initial segment and tapped bore main paragraph, the leading cooperation with this tapped bore main paragraph inner diameter cylindrical face to socket cap of two drop bar rear ends installs, the rear top pressure cylindrical section of these two drop bar rear ends coordinates with this smooth cylindrical hole the initial segment to be installed, this smooth cylindrical hole the initial segment cooperation clamps shearing sleeve, and these two thread barrel rear ends arrange initiatively extension mechanism.The present invention is applicable to utility van bumper/spoiler and initiatively extends increase energy-absorbing region and absorbing impact energy.

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, also threatens the life security of driver and crew.Therefore, the research of Crash Safety Design of Vehicles is a large problem that can not be ignored.And the collision case rate of automotive front accounts for 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, front structure due to utility van is without machinery space, does not have the region of enough absorption collision energies thus the casualty situations of the chaufeur caused and copilot is heavy when colliding.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of and reduce vehicle body infringement, reduce driver and crew's injury, improve the utility van of safety and initiatively extend 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 chassis side raiies in left and right and the bumper/spoiler of two chassis side rail front ends about this is set, and be arranged on rear whippletree, the middle whippletree about this between two chassis side raiies.Also comprise energy absorption device and active extension mechanism, this energy absorption device comprises extension thick stick, drop bar, thread barrel, shear sleeve, extend thick stick by the transverse concave groove that it is provided with inlay be arranged on bumper/spoiler just before, two thread barrels are symmetrical can be arranged on inside two chassis side raiies in left and right slidingly back and forth, these two thread barrels are designed to smooth cylindrical hole the initial segment and tapped bore main paragraph, this smooth cylindrical bore dia is equal with this tapped bore external diameter, two drop bar rear ends are designed to press cylindrical section along the leading of crash direction to socket cap and rear top, two drop bar rear ends are inserted in two thread barrels respectively, and install this leading cooperation with this tapped bore main paragraph inner diameter cylindrical face to socket cap, this rear top pressure cylindrical section coordinates with this smooth cylindrical hole the initial segment to be installed, between this pressure cylindrical section front end, rear top and tapped bore main paragraph outer end, and coordinate with smooth cylindrical hole the initial segment and clamp shearing sleeve, what make this drop bar leadingly presses looping between cylindrical section to inhale to socket cap and rear top to consider groove to be worth doing, these two drop bar front ends are provided with thread segment, the nose threads section 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 inside the chassis side rail of two, 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 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 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 is on traditional bumper system, and add energy absorption device and active extension mechanism, before collision occurs, initiatively the cylinder piston rod of extension mechanism stretches out, and makes the extension thick stick of energy absorption device stretch out forward in advance, thus adds crusherbull zone region.When colliding generation; rigid impact masterpiece is used on drop bar by the extension thick stick of energy absorption device; clash into masthead pressure and shear sleeve; make the negative thread in shearing sleeve screw cutting cylinder; finally reach and destroy the endergonic effect of screw thread; the final injury alleviated collision and cause car and passengers inside the car, plays certain protective effect.Test shows, can absorb collision institute energy-producing 50%, reach absorption energy, reduce the object of car and people's injury.Compensate for the problem that utility van front energy-absorbing region is little.Obtain the effect reducing vehicle body infringement, reduce driver and crew's injury, improve 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 in Fig. 1 I;
Fig. 3 is the cutaway view along A-A line in Fig. 1;
Fig. 4 is the organigram of extension state of the present invention;
Fig. 5 is the cutaway view along 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.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As shown in Figure 1, give the organigram that utility van of the present invention initiatively extends energy-absorbing bumper detailed description of the invention, comprise two chassis side raiies in left and right 14 and the bumper/spoiler 2 of two chassis side rail 14 front ends about this is set, and be arranged on rear whippletree 10, the middle whippletree 11 about this between two chassis side raiies 14.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 thick stick 1 by the transverse concave groove that it is provided with inlay be arranged on bumper/spoiler 2 just before, two thread barrels 5 are symmetrical can be arranged on inside two chassis side raiies 14 in left and right 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 bore dia is equal with this tapped bore external diameter, two drop bar 3 rear ends are designed to press cylindrical section along the leading of crash direction to socket cap and rear top, two drop bar 3 rear ends are inserted in two thread barrels 5 respectively, and install this leading cooperation with this tapped bore main paragraph inner diameter cylindrical face to socket cap, this rear top pressure cylindrical section coordinates with this smooth cylindrical hole the initial segment to be installed, between this pressure cylindrical section front end, rear top and tapped bore main paragraph outer end, and coordinate to clamp with smooth cylindrical hole the initial segment and shear sleeve 13, what make this drop bar 3 leadingly presses looping between cylindrical section to inhale to socket cap and rear top to consider groove 12 to be worth doing, these two drop bar 3 front ends are provided with thread segment, the nose threads section 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, give the organigram of the active extension mechanism detailed description of the invention that utility van of the present invention initiatively extends 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 inside the chassis side rail 14 of two, 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 barrel 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 barrel 5 rear end seats 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 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 bumper system that utility van is traditional, 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 time, the distance of radar dynamic measurement and front truck, by the feedback of the sensing device 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 oil pressure that the oil cylinder 9 of initiatively extension mechanism is certain, thus make hydraulic cylinder works, piston rod stretches out drive two poles 8, two poles 8 drive two of both sides forks 7 with mount pad hinge-point respectively for the center of circle swings laterally, two forks 7 swung laterally drive two thread barrels 5 of push rod 6 pushed forward energy absorption device hinged separately respectively, two thread barrels 5 are extended forward by slide rail 4 straight line installed inside chassis side rail 14, two drop bars 3 synchronously extend forward with two thread barrels 5, two drop bars 3 make extension thick stick 1 depart from bumper/spoiler 2 to stretch out forward.When active extension mechanism reaches the limit of position, lucky fork 7 becomes dead point with push rod 6 hinge-point, thus obtains the application force produced when being used for counteraction collision.When colliding, the extension thick stick 1 stretched out passes to two drop bars 3 power, drop bar 3 is used in masterpiece vertically by rear top pressure cylindrical section and shears on sleeve 13, makes the negative thread of 5 li, shearing sleeve 13 screw cutting cylinder, inhales bits groove 12 simultaneously and absorb the chip produced when shearing screw thread.So just make the energy achieving produce when absorbing collision more than 50% in the region of body forward structure 200mm, during vehicle body collision, energy is reduced over half, reach the infringement reducing vehicle body, and the impulsive force produced when reducing collision is to the injury of driver and crew on car.
After active extension mechanism makes energy absorption device stretch out, if crashed, the device that energy absorption device of the present invention will more renew after an impact.If automobile brakes in time, this energy absorption device stretches out and does not collide, do not meeting the speed of a motor vehicle, and be in safety distance time, this active extension mechanism can start oil cylinder 9 and be retracted by this energy absorption device, ensure that automobile can continue normally to travel on road, when preparing again to be 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, energy-absorbing region during collision effectively can be increased, the injury of minimizing car and people.
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 two chassis side raiies (14) in left and right and the bumper/spoiler (2) of two chassis side rail (14) front ends about this is set, and the rear whippletree (10) be arranged on about this between two chassis side raiies (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 thick stick (1) by the transverse concave groove that it is provided with inlay be arranged on bumper/spoiler (2) just before, two thread barrels (5) are symmetrical can be arranged on chassis side raiies (14) inner side, two, left and right 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 bore dia is equal with this tapped bore external diameter, two drop bar (3) rear ends are designed to press cylindrical section along the leading of crash direction to socket cap and rear top, two drop bar (3) rear ends are inserted in two thread barrels (5) respectively, and install this leading cooperation with this tapped bore main paragraph inner diameter cylindrical face to socket cap, this rear top pressure cylindrical section coordinates with this smooth cylindrical hole the initial segment to be installed, between this pressure cylindrical section front end, rear top and tapped bore main paragraph outer end, and coordinate to clamp with smooth cylindrical hole the initial segment and shear sleeve (13), what make this drop bar (3) leadingly presses looping between cylindrical section to inhale to socket cap and rear top to consider groove (12) to be worth doing, these two drop bar (3) front ends are provided with thread segment, the nose threads section 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.
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 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 barrel (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 barrel (5) rear end seats 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) 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).
CN201310631415.4A 2013-12-02 2013-12-02 Utility van initiatively extends energy-absorbing bumper Active CN103600711B (en)

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CN103600711B true CN103600711B (en) 2015-09-30

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9067552B1 (en) * 2014-08-13 2015-06-30 Ford Global Technologies, Llc Adaptive energy absorber for a vehicle
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
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
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
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

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

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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

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