CN109204202A - A kind of car crass three-level buffer unit - Google Patents

A kind of car crass three-level buffer unit Download PDF

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Publication number
CN109204202A
CN109204202A CN201811165463.8A CN201811165463A CN109204202A CN 109204202 A CN109204202 A CN 109204202A CN 201811165463 A CN201811165463 A CN 201811165463A CN 109204202 A CN109204202 A CN 109204202A
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CN
China
Prior art keywords
buffer
automobile
bumper
piston
collision
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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.)
Pending
Application number
CN201811165463.8A
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Chinese (zh)
Inventor
吴博
迟会生
张雅东
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Harbin University of Science and Technology
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Harbin University of Science and Technology
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Filing date
Publication date
Application filed by Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CN201811165463.8A priority Critical patent/CN109204202A/en
Publication of CN109204202A publication Critical patent/CN109204202A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24Arrangements for mounting bumpers on vehicles
    • B60R19/26Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/36Combinations of yieldable mounting means of different types

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)

Abstract

本发明涉及一种汽车碰撞三级缓冲装置,由保险杠、钢板弹簧、缓冲弹簧、缓冲橡胶块、缓冲吸能装置和汽车后梁组成,所述的缓冲吸能装置有两个,对称布置在保险杠的左右两侧,横向方向上一端与保险杠刚好接触。在钢板弹簧后面连接了缓冲橡胶块。当汽车发生碰撞时,汽车前端保险杠产生变形,钢板弹簧对保险杠起顶撑作用,对碰撞起一级缓冲作用。当碰撞力过大时,外力能够推动通过活塞顶杆和活塞传递给压缩弹簧,对碰撞起二级缓冲作用。当碰撞力更大时,缓冲销剪断后能够起到三级缓冲吸能作用。本发明的一种汽车碰撞三级缓冲装置,当汽车受到严重碰撞时,可以进行多次缓冲,提高了汽车的碰撞能,同时也对车内人员提高了安全保障。

The invention relates to a three-stage buffer device for automobile collision, which is composed of a bumper, a leaf spring, a buffer spring, a buffer rubber block, a buffer energy-absorbing device and a rear beam of an automobile. On the left and right sides of the bar, the upper end in the lateral direction is just in contact with the bumper. A bumper rubber block is attached behind the leaf spring. When the car collides, the front bumper of the car is deformed, and the leaf spring acts as a top support for the bumper and a first-level buffer for the collision. When the collision force is too large, the external force can be pushed through the piston top rod and the piston and transmitted to the compression spring, which plays a secondary buffering effect on the collision. When the collision force is larger, the buffer pin can play a three-stage buffer energy absorption function after shearing. The three-level buffer device for automobile collision of the present invention can perform multiple buffering when the automobile is severely collided, thereby improving the collision energy of the automobile and improving the safety of the occupants in the vehicle.

Description

A kind of car crass three-level buffer unit
Technical field
The present invention provides a kind of car crass three-level buffer units, belong to car protective device technical field.
Background technique
Automobile is early due to its is convenient, fast to have become the vehicles closely bound up in people's life.Currently, with automobile The rapid growth of ownership and the continuous improvement of car speed result in automobile collision accident rate and rise year by year, effectively cause Automobile property loss and personal injury.When head-on crash occurs for automobile, the component being collided at first is bumper, traditional Bumper is not able to satisfy the requirement of automotive safety in high velocity impact.When speed very it is high collide when, huge inertia force meeting Make automobile head that serious deformation occur, is easy to produce biggish impact force, driver and passenger are damaged.Therefore one kind is needed The buffer gear of buffer capacity when can reduce acceleration when collision, enhancing car crass, this mechanism can protect vehicle Interior personnel protect the appearance of automobile not destroyed as far as possible simultaneously.
Summary of the invention
Aiming at the problem that above-mentioned prior art Shortcomings, the purpose of the present invention is to propose to a kind of car crass three-level bufferings Device, can enhance collision energy-absorbing ability, reduce car crass when acceleration, can protect interior driver and passenger safety and Protect the appearance of automobile.
To achieve the above object, the present invention provides a kind of car crass three-level buffer units.A kind of car crass three-level Buffer unit, it is characterised in that: by bumper, leaf spring, buffer spring, bump rubber, crash energy absorption equipment and automobile Back rest composition.The crash energy absorption equipment includes dsah-pot, and the dsah-pot is fixed on the crossbeam of car, and described is slow It rushes cylinder front end and stretches out piston mandril, the top of piston mandril is fixed on car insurance bar, and the buffer unit is by front and back two A buffer set at, separated between the buffer area of front and back by fixing seal column, be provided on fixing seal column connection front and back buffering The through-hole in area, the preceding buffer area include secondary piston, compressed spring and hydraulic oil, the rear buffer area include rear piston, The piston of rear buffer area described in cushion pins and hold-down support composition is fixedly connected with hold-down support.
A kind of car crass three-level buffer unit, there are two the crash energy absorption equipments, is arranged symmetrically in bumper The left and right sides, one end is just contacted with bumper in transverse direction, and the other end is connect with the automobile back rest.
A kind of car crass three-level buffer unit is connected to bump rubber behind the leaf spring, in buffering rubber 3-6 buffer springs are mounted with inside blob of viscose.
A kind of car crass three-level buffer unit, the piston and hold-down support of the rear buffer area pass through 4-6 bufferings Pin connection.
A kind of car crass three-level buffer unit, the upper surface of described automobile back rest outside have welded 4-6 admittedly with following Determine support.
A kind of effective income for car crass three-level buffer unit that the present invention uses is: installing behind bumper Crash energy absorption equipment, and bump rubber is mounted with behind leaf spring, when automobile collides, pass through steel plate bullet Spring, compressed spring and cushion pins three-level buffering energy-absorbing improve buffer capacity of the automobile in collision in this way, can reduce automobile Acceleration in collision, can preferably protect the safety of interior driver and passenger.
Detailed description of the invention
Attached drawing 1 is a kind of overall construction drawing of car crass three-level buffer unit.
Attached drawing 2 is a kind of structure chart of the bump rubber of car crass three-level buffer unit.
Attached drawing 3 is a kind of structure chart of the crash energy absorption equipment of car crass three-level buffer unit.
In attached drawing: 1- bumper 2- leaf spring 3- bump rubber 4- crash energy absorption equipment 5- automobile back rest 6- Dsah-pot 31- bump rubber 32- buffer spring 41- piston mandril 42- secondary piston 43- compressed spring 44- hydraulic oil Piston 48- cushion pins 49- hold-down support after 45- through-hole 46- fixing seal column 47-
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Referring in attached drawing 1, attached drawing 2, attached embodiment shown in Fig. 3, a kind of car crass three-level buffer unit, by bumper 1, leaf spring 2, bump rubber 3, crash energy absorption equipment 4, the automobile back rest 5, dsah-pot 6, the crash energy absorption equipment 4 have Two, it is arranged symmetrically in the left and right sides of bumper 1, one end is connected with bumper rigid 1 in transverse direction, the other end and automobile The back rest 5 connects.
Bump rubber 3 described in attached drawing 2 is mounted on behind leaf spring 2, and 3-6 are installed inside bump rubber 3 A buffer spring 32.
Crash energy absorption equipment 4 described in attached drawing 3 include piston mandril 41, secondary piston 42, compressed spring 43, hydraulic oil 44, Through-hole 45, fixing seal column 46, rear piston 47, cushion pins 48, hold-down support 49, the dsah-pot 6 are fixed on the crossbeam of automobile On, dsah-pot 6 is provided with former and later two buffer areas, is separated between the buffer area of front and back by fixing seal column 46, fixing seal column 46 On be provided with the through-hole 45 of connection front and back buffer area, be provided with secondary piston 42, compressed spring 43 and hydraulic oil 44 in preceding buffer area, Rear piston 47, cushion pins 48 and hold-down support 49 are provided in buffer area afterwards.Piston mandril 41 on secondary piston 42 is from dsah-pot 49 front end is stretched out, and the top of piston mandril 41 is fixed with bumper.
6 cross section of dsah-pot described in attached drawing 1 is circle.
Specifically, automotive front end bumper 1 generates deformation, and leaf spring 2 is to 1 energy of bumper when automobile collides Enough play the role of shoring, generate and buffer for the first time, when impact force is excessive, 1 deformation of bumper is withstood forces more than leaf spring 2 When, external force can be forced through piston mandril 41 and secondary piston 42 passes to the compressed spring 43 in preceding buffer area, generate second Secondary buffering, when impact force is bigger, the hydraulic oil 44 in preceding buffer area is entered in rear buffer area by through-hole 45, passes through rear piston 47 Hold-down support 49 is squeezed, cushion pins 48 are cut, third time is generated and buffers, by buffering three times, alleviate impact force significantly, subtract The impact force of automobile, the safety of effective protection people and automobile are lacked.

Claims (5)

1.一种汽车碰撞三级缓冲装置,其特征在于:由保险杠、钢板弹簧、缓冲弹簧、缓冲橡胶块、缓冲吸能装置和汽车后梁组成,所述的缓冲吸能装置包括缓冲筒,所述的缓冲筒固定在轿车的大梁上,所述的缓冲筒前端伸出活塞顶杆,活塞顶杆的顶端固定在汽车保险杆上,所述的缓冲装置由前后两个缓冲区组成,前后缓冲区之间由固定密封柱分隔开,固定密封柱上设置有连通前后缓冲区的通孔,所述的前缓冲区包括前活塞、压缩弹簧及液压油,所述的后缓冲区包括后活塞、缓冲销和固定支座组成,所述的后缓冲区的活塞与固定支座固定连接。1. A three-level buffer device for automobile collision is characterized in that: it is composed of bumper, leaf spring, buffer spring, buffer rubber block, buffer energy-absorbing device and automobile rear beam, and the buffer energy-absorbing device comprises a buffer cylinder, so The buffer cylinder is fixed on the girder of the car, the front end of the buffer cylinder extends out of the piston rod, and the top end of the piston rod is fixed on the car bumper. The zones are separated by a fixed sealing column, and the fixed sealing column is provided with a through hole connecting the front and rear buffer zones. The front buffer zone includes a front piston, a compression spring and hydraulic oil, and the rear buffer zone includes a rear piston. It is composed of a buffer pin and a fixed support, and the piston of the rear buffer zone is fixedly connected with the fixed support. 2.根据权利要求1所述的一种汽车碰撞三级缓冲装置,其特征在于:所述的缓冲吸能装置有两个,对称布置在保险杠的左右两侧,横向方向上一端与保险杠刚好接触,另一端与汽车后梁连接。2 . The three-stage buffer device for automobile collision according to claim 1 , wherein there are two buffer energy-absorbing devices, which are symmetrically arranged on the left and right sides of the bumper, and one end in the lateral direction is connected to the bumper. 3 . Just touch, and the other end is connected to the rear beam of the car. 3.根据权利要求1所述的一种汽车碰撞三级缓冲装置,其特征在于:在钢板弹簧后面连接了缓冲橡胶块,在缓冲橡胶块里面安装了3—6个缓冲弹簧。3 . The three-stage buffer device for automobile collision according to claim 1 , wherein a buffer rubber block is connected behind the leaf spring, and 3-6 buffer springs are installed in the buffer rubber block. 4 . 4.根据权利要求1所述的一种汽车碰撞三级缓冲装置,其特征在于:后缓冲区的活塞和固定支座通过4—6个缓冲销连接。4 . The three-stage buffer device for automobile collision according to claim 1 , wherein the piston of the rear buffer zone and the fixed support are connected by 4-6 buffer pins. 5 . 5.根据权利要求1所述的一种汽车碰撞三级缓冲装置,其特征在于:在汽车后梁外侧的上面和下面焊接了4-6 个固定支座。5 . The three-stage buffer device for automobile collision according to claim 1 , wherein 4-6 fixed supports are welded on the top and bottom of the outer side of the rear beam of the automobile. 6 .
CN201811165463.8A 2018-10-08 2018-10-08 A kind of car crass three-level buffer unit Pending CN109204202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811165463.8A CN109204202A (en) 2018-10-08 2018-10-08 A kind of car crass three-level buffer unit

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Application Number Priority Date Filing Date Title
CN201811165463.8A CN109204202A (en) 2018-10-08 2018-10-08 A kind of car crass three-level buffer unit

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CN109204202A true CN109204202A (en) 2019-01-15

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109823296A (en) * 2019-03-19 2019-05-31 哈尔滨理工大学 A car crash protection device
CN110758296A (en) * 2019-11-21 2020-02-07 重庆交通大学 External safety device for automobile
CN110936930A (en) * 2019-12-19 2020-03-31 西安宝鑫自动化设备有限公司 Automobile collision emergency locking brake device
CN118722473A (en) * 2024-09-03 2024-10-01 西安雅西复合材料有限公司 A multi-stage energy absorption protection device for stalled vehicle collision

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202294641U (en) * 2011-11-01 2012-07-04 霍春雨 Collision bumper for automobile
CN104842909A (en) * 2014-02-13 2015-08-19 徐州润裕机械科技有限公司 Car crash three-level buffer device
CN105691337A (en) * 2016-03-28 2016-06-22 于新潮 Automobile collision buffer
CN108407743A (en) * 2018-04-12 2018-08-17 哈尔滨理工大学 A kind of buffer device for collision of automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202294641U (en) * 2011-11-01 2012-07-04 霍春雨 Collision bumper for automobile
CN104842909A (en) * 2014-02-13 2015-08-19 徐州润裕机械科技有限公司 Car crash three-level buffer device
CN105691337A (en) * 2016-03-28 2016-06-22 于新潮 Automobile collision buffer
CN108407743A (en) * 2018-04-12 2018-08-17 哈尔滨理工大学 A kind of buffer device for collision of automobile

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109823296A (en) * 2019-03-19 2019-05-31 哈尔滨理工大学 A car crash protection device
CN110758296A (en) * 2019-11-21 2020-02-07 重庆交通大学 External safety device for automobile
CN110758296B (en) * 2019-11-21 2023-02-28 重庆交通大学 External safety device for automobile
CN110936930A (en) * 2019-12-19 2020-03-31 西安宝鑫自动化设备有限公司 Automobile collision emergency locking brake device
CN118722473A (en) * 2024-09-03 2024-10-01 西安雅西复合材料有限公司 A multi-stage energy absorption protection device for stalled vehicle collision

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