Shock device and safety cap shock test machine

An impact device and impact testing technology, applied in the field of impact devices, can solve problems such as unsatisfactory objects falling and impacting, worker injury, etc.

Inactive Publication Date: 2011-11-23
刘光镐
View PDF7 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the existing safety helmet impact testing machine does not meet the actual conditions of the object falling and impacting the safety helmet worn by the worker in the work area
So, even if the hard hat passes the test, the worker wearing the hard hat in the work area will be injured when an object hits the hard hat

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shock device and safety cap shock test machine
  • Shock device and safety cap shock test machine
  • Shock device and safety cap shock test machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Referring to the accompanying drawings, embodiments of an impact device according to the present invention and a helmet impact testing apparatus having the same will now be described.

[0020] figure 1 is a perspective view of one embodiment of an impact device according to the present invention and a helmet impact testing apparatus having the same.

[0021] Such as figure 1 As shown, the safety helmet impact testing equipment according to an example of the present invention includes a base 100, a guide frame 200, a moving part 400, a drive unit 500, a test object support unit 600, an impact device 700, a position-fixed buffer 800, connectable / The detachable unit 900 and the sensing unit.

[0022] The base 100 has a constant thickness and a predetermined area. The base 100 may be formed in a square shape in a plan view of the base 100 .

[0023] The guide frame 200 has a predetermined length, and may be formed in a shape of 'I' in a cross-sectional view of the guid...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

Provided is a shock device and a safety cap shock test machine. The collision device comprises a free fall assembly (FA), an impact punch, and a re-collision prevention member. The free fall assembly drops freely along the guide rail and has a vibration absorption part. The impact punch collides to a test object according to the free fall of the free fall assembly. The re-collision prevention member prevents the test object from crashing again to the test object after the collision to the test object. The safety cap shock test machine includes a base; a guide rack equipped with a guiderail and arranged on the base; a moving member movably jointed with the guide rail and moved along the guide rail; a driving unit driving the moving member to move up and down; a testing subject support unit provided with a testing subject and arranged on the base; a shock device provided with the vibration absorption part; position fixing buffer determining the stopping position of the shock device; a connectable / separatable unit jointed with the moving member; and an induction unit inducting the punching amount when the shock device punches the testing subject. The device in the invention improves the reliability of the shock test of the testing subject.

Description

technical field [0001] The invention relates to an impact device and safety helmet impact testing equipment with the impact device. Background technique [0002] When a worker is working in a work area, the worker must wear a safety helmet to protect the worker's head from the impact of falling objects. Hard hats must be rigid enough to withstand the impact of an object hitting the hard hat to protect the worker's head. Therefore, after the helmet is manufactured, it should be tested whether the helmet has a predetermined hardness. [0003] When a hard hat impact tester tests hard hats, the hard hat impact tester must meet conditions similar to the actual conditions under which an object falls and impacts a hard hat worn by a worker in a work area. [0004] However, the existing helmet impact testing machine tests the helmet in such a manner that the helmet impact testing machine drops the helmet from a predetermined height to the floor to give a predetermined impact to th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/08
CPCG01M7/08G01M13/00G01N3/303G01N2203/0039
Inventor 刘光镐
Owner 刘光镐
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap