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Fire-extinguishment helmet, fire-extinguishment helmet shell body and preparation method of fire-extinguishment helmet shell body

A technology for helmets and shells, which is applied in the field of preparation of fire-fighting helmets, fire-fighting helmet shells, and fire-fighting helmet shells, and can solve problems such as time-consuming and laborious, large surface area of ​​helmet shells, and unfavorable mass production

Inactive Publication Date: 2018-01-12
THE QUARTERMASTER EQUIP INST OF THE LOGISTICAL SUPPORT DEPT CMC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, the glue injection needs to be vacuumed, and the surface area of ​​the helmet shell is relatively large, which is very time-consuming; secondly, the glue injection process needs to control the fluidity of the glue, so the temperature of the glue must be controlled
There are many uncertain factors that need to be controlled in the whole process, and it is time-consuming and labor-intensive. It takes three or four hours to make a helmet, which is not conducive to mass production

Method used

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  • Fire-extinguishment helmet, fire-extinguishment helmet shell body and preparation method of fire-extinguishment helmet shell body
  • Fire-extinguishment helmet, fire-extinguishment helmet shell body and preparation method of fire-extinguishment helmet shell body
  • Fire-extinguishment helmet, fire-extinguishment helmet shell body and preparation method of fire-extinguishment helmet shell body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] Embodiment 1, make helmet body

[0087] 1) Synthesis of epoxy resins and curing agents containing imide groups

[0088] a, Synthesis of epoxy resins containing imide groups:

[0089] Add bifunctional epoxy resin, polyimide, and epoxy resin (862) into the reaction kettle at a molar ratio of 1:2:1, stir and heat thoroughly, until the temperature rises to 120°C, the dehydration reaction starts, stir The speed is 200-220 revolutions per minute, fully stirred for 2 hours and then dehydrated for 1 hour. The solution is layered up and down, and the water is removed from the top. Continue to heat until the temperature rises to 250°C, and the cross-linking reaction begins. Take out the reaction after 24 hours of reaction. For the sample, use filter paper to filter the sample, wait until no particulate matter appears, the reaction is completed, and cool down for use.

[0090] b. Synthesis of curing agent:

[0091] Add 15ml of trimethylhexamethylenediamine and 30ml of 3-ethynyl...

Embodiment 2

[0105] Embodiment 2, fire helmet

[0106] The fire extinguishing helmet provided by the present invention comprises a helmet shell, a suspension system, a shawl, a mask, an aramid velcro and a snap button; the suspension system is fixed inside the helmet shell; wherein the suspension system includes a helmet lining and a mesh belt on top of the head , cap ring, chin rest and chin strap; the helmet cap liner is assembled from hard plastic parts and soft plastic parts; The hard plastic part is composed of an adjusting fixed frame, an adjusting hand wheel and an adjusting gear; among them, the adjusting fixed frame has a lock channel;

[0107] The shawl and the suspension system are connected by aramid velcro and snap buttons, and are located at the rear of the helmet shell; the face shield is installed on the outer surface of the helmet shell, and can be turned back and forth; the helmet shell used is the helmet shell obtained in Example 1 body.

[0108] In the helmet cap line...

Embodiment 3

[0112] Embodiment 3, helmet performance detection

[0113] According to the requirements of GA44-2015 "Fire Helmet", 12 helmet samples obtained in Example 2 were submitted for inspection, and the specific results are shown in Table 6:

[0114] Table 6. Test results of helmet performance (GA44—2015)

[0115]

[0116]

[0117]

[0118] It can be seen from Table 6 that the surface of the helmet provided by the present invention is fully filled, the inner surface of the helmet shell is smooth, and has special properties such as impact resistance, puncture resistance, combustion resistance, high temperature resistance, and electrical insulation. It is at the domestic leading level and has important application value .

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Abstract

The invention discloses a fire-extinguishment helmet, a fire-extinguishment helmet shell body and a preparation method of the fire-extinguishment helmet shell body. The fire-extinguishment helmet shell body is formed through overlapping carbon fiber cloth and glass fiber cloth in a 3+2 staggered manner; the helmet comprises the helmet shell body, a suspension system, a shoulder cape, a mask and fasteners. The fire-extinguishment helmet disclosed by the invention has the special performance of impact resistance, puncture resistance, combustion resistance, high temperature resistance, electricalinsulation and the like.

Description

technical field [0001] The invention belongs to the technical field of fire fighting equipment materials, and relates to a fire extinguishing helmet, a fire extinguishing helmet shell and a preparation method of the fire extinguishing helmet shell. Background technique [0002] Firefighters all need to wear fire helmets when carrying out firefighting operations to protect the safety of firefighters' heads. In addition to using polycarbonate and other engineering plastics through injection molding, the current fire helmet shell preparation technology also has carbon fiber and glass fiber to prepare and form through vacuuming. Although the shell made of polycarbonate and other engineering plastics has high production efficiency and easy surface treatment, the helmet shell is heavy and has poor performance such as high temperature resistance; although the shell made of carbon fiber and glass fiber after vacuuming can solve the problem The shortcomings of the helmet shell being...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K7/14C08K7/06C08G59/56C08G59/50B29C70/34A42B3/12A42B3/04
Inventor 赖军王忠强张华张巾玲吴玲龙钦生
Owner THE QUARTERMASTER EQUIP INST OF THE LOGISTICAL SUPPORT DEPT CMC
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