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Automobile bumper with multilevel buffering device

A technology for automobile bumpers and buffer devices, which is applied to bumpers, safety devices of power plant control mechanisms, tractors, etc., can solve problems such as limited energy of bumpers, casualties, vehicle damage, etc., so as to reduce damage and avoid collisions Accidents, the effect of improving safety

Inactive Publication Date: 2012-07-25
刘吉平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of a slight collision, the bars and irons can protect the car body to a certain extent; but for heavy collisions, the energy absorbed by the bars and irons is limited, and it transmits the collision energy to the body, causing vehicle damage and even casualties

Method used

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  • Automobile bumper with multilevel buffering device
  • Automobile bumper with multilevel buffering device
  • Automobile bumper with multilevel buffering device

Examples

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Embodiment Construction

[0015] The present invention includes a crash box 2 rigidly connected to the chassis of the automobile and a bar iron 3 connected to the crash box 2. For a structural schematic diagram, refer to figure 1 . figure 2 It is a longitudinal sectional view of the crash box 2, which includes a box body 5 with one end open, an energy-absorbing buffer block 4 arranged at the inner bottom of the box body 5, an outer sleeve 8 slidingly arranged in the box body 5, and an outer sleeve 8 connected with the outer sleeve 8. An inner casing 13 with sliding fit at one end; the inner casing 13 is equipped with a compression spring 9 outside, and the compression spring 9 is positioned between the outer casing 8 and the bar iron 3.

[0016] The outer wall of the box body 5 is also provided with an arc-shaped spring sheet 10 with one end fixed to the box body 5, and the free end of the arc-shaped spring sheet 10 is closer to the bar iron 3 than the open end of the box body 5, and the approaching d...

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Abstract

The invention discloses an automobile bumper with a multilevel buffering device, which structurally comprises a collision energy absorption box and a lever iron, wherein the lever iron is connected with the collision energy absorption box which is in rigid connection with a chassis of an automobile. The collision energy absorption box comprises a box body with one open end, an energy absorption buffering block, an outer sleeve and an inner sleeve, wherein the energy absorption buffering block is arranged at the inner bottom end of the box body, and the inner sleeve is in slidable fit with one end of the outer sleeve which is slidably arranged in the box body. A compression spring is fittingly arranged outside the inner sleeve and positioned between the outer sleeve and the lever iron. By the aid of the lever iron, the compression spring and the absorption buffering block multilevel energy absorption device, damage of an automobile body caused by collision can be reduced and safety of the automobile and personnel can be improved by means of absorbing and converting collision energy through deformation.

Description

technical field [0001] The invention relates to an automobile matching device, in particular to an automobile bumper with a multi-stage buffer device. Background technique [0002] A car bumper is a safety device that absorbs and moderates external impact and protects the car body. Its protection of the car is mainly achieved in two ways. One is to use the car body connected to the bumper to disperse the collision energy, and the other is to pass the insurance The bar itself deforms to absorb energy; especially the second form is more important in high-speed collisions. Therefore, the absorption effect of the bumper on the collision energy is a very important indicator. [0003] Existing automobile mostly adopts bar iron structure, and its rigidity is connected on the automobile chassis, when vehicle body is hit or rear-end, mainly absorbs collision energy by the deformation of bar iron itself. In the case of a slight collision, the bars can protect the vehicle body to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R19/28B60R19/34B60K28/14B60R21/0136
Inventor 刘吉平王建排刘志保吴家振
Owner 刘吉平
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