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Automotive engine hood jacking device and jacking method thereof

A technology for jacking up devices and hoods, applied in vehicle parts, transportation and packaging, vehicle safety arrangements, etc., can solve problems such as pedestrian injuries, and achieve the effects of ensuring reliability, avoiding damage, and improving response speed.

Inactive Publication Date: 2019-11-19
陕西庆华汽车安全系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of automobile hood jacking device, has solved the injury to the pedestrian that exists under the hood hard point in the prior art

Method used

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  • Automotive engine hood jacking device and jacking method thereof
  • Automotive engine hood jacking device and jacking method thereof
  • Automotive engine hood jacking device and jacking method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1, such as figure 1 And, shown in 2, a kind of car engine hood jacking device, comprises outer shell 1, and outer shell 1 is a hollow tube; Piston rod 3 is installed on the inner top of outer shell 1, and one end of piston rod 3 is ejection end The other end is the piston end, that is, the ejection end of the piston rod 3 is flush with the top of the outer tube shell 1, and the piston end of the piston rod 3 is close to the bottom of the outer tube shell 1. After the device is activated, the piston rod 3 is pushed out radially along the outer tube shell 1 Jack up the hood of the car; a miniature gas generator 6 is installed at the inner bottom of the outer shell 1 to provide power for the piston rod 3 to be pushed out; a gasket 5 is arranged between the piston end of the piston rod 3 and the miniature gas generator 6 to prevent the piston from The rod 3 is in direct contact with the micro gas generator 6 to ensure the reliability of the micro gas generator 6; th...

Embodiment 2

[0043] Example 2, the difference between this example and Example 1 is that the bottom of the micro gas generator 6 is connected to the bottom of the outer tube shell 1 in a tight-fitting connection, specifically: after the bottom of the micro gas generator 6 is socketed with the bottom of the outer tube shell 1 Align the bottom part that needs to be sealed and assembled with the inner tooth socket of the circlip, the circlip is tightened under the action of external force, and the outer tube shell 1 is deformed by force to cover and seal the micro gas generator 6. This method has high efficiency and low cost. Low cost, easy to realize automation, etc., the sealing ring II8 is installed at the sealing connection, and the setting of the sealing ring II8 effectively ensures the overall airtightness of the device.

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PUM

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Abstract

The invention discloses an automotive engine hood jacking device and a jacking method of the automotive engine hood jacking device. The automotive engine hood jacking device comprises an outer tube shell. The outer tube shell is a hollow tube. A piston rod is installed on the top of the interior of the outer tube shell, one end of the piston rod serves as a jacking end, and the other end of the piston rod serves as a piston end. A micro gas generator is installed at the bottom of the interior of the outer tube shell. A gasket is arranged between the piston end of the piston rod and the micro gas generator and comprises through holes. A guide sleeve is connected to the top of the outer tube shell in a sleeving mode, and a protective cap is further connected to the guide sleeve. The annulargasket is arranged between the piston rod and the micro gas generator, and therefore the piston rod and the micro gas generator are effectively prevented from making direct contact with each other, the damage to the micro gas generator is avoided, and the reliability of the device is guaranteed. Meanwhile, the through holes of the gasket have a guide effect on the generated gas, and cooperate witha groove formed in the end of the piston rod, and therefore the response speed of the device is effectively increased.

Description

technical field [0001] The invention belongs to the technical field of automobile safety, relates to an automobile hood jacking device, and also relates to a jacking method of the automobile hood jacking device. Background technique [0002] At present, when accidents occur between cars and pedestrians traveling at a certain speed, more and more attention has been paid to the research and development of pedestrian safety protection. The newly promulgated 2018 version of the C-NCAP process clearly states that "pedestrian protection" will be used as an assessment process accounted for 15% of the weight; [0003] At present, domestic automobile manufacturers' protection measures for pedestrians are more common to adopt cushioning structure on the section of the engine compartment cover. From the perspective of technical cost, the price of the cushioning and collision protection system is relatively low. However, this technology is passive protection and has limited protection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/38
CPCB60R21/38
Inventor 徐磊张康熙赵文虎贾金伟李艳芳孙卫升房苗苗韩瑞民
Owner 陕西庆华汽车安全系统有限公司