CN215583265U

CN215583265U - Protective material for safety helmet shell

Info

Publication number: CN215583265U
Application number: CN202023174379.8U
Authority: CN
Inventors: 张笋; 赖仲平; 李加定; 张李林
Original assignee: Foshan Dafu New Material Co ltd
Current assignee: Foshan Dafu New Material Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2022-01-21
Anticipated expiration: 2030-12-25

Abstract

The utility model provides a protective material for a safety helmet shell, which relates to the field of helmets and comprises a protective shell, wherein the protective shell comprises a protective layer, the protective layer is formed by polycarbonate materials, the thickness of the protective layer is 0.7mm, a buffer layer is arranged on the inner surface of the protective layer, the buffer layer is fixedly bonded on the inner surface of the protective layer, the buffer layer is formed by cutting polyurethane materials, the thickness of the buffer layer is 15mm, an inner liner layer wraps the inner surface of the buffer layer, the inner liner layer is formed by cutting reticular cotton cloth, and the thickness of the inner liner layer is 2 mm. The polycarbonate material for the safety helmet shell has the characteristics of high impact resistance, excellent toughness, high dimensional stability, good electrical insulation performance, high temperature resistance, good weather resistance, easiness in processing and the like, plays a good protection role, plays an increasingly important role in national economy and life, and has wide development prospect.

Description

Protective material for safety helmet shell

Technical Field

The utility model relates to the technical field of helmets, in particular to a protective material for a safety helmet shell.

Background

In recent years, traffic safety accidents are frequent, and the demand of safety helmets is increased at one time in order to further improve the safety protection level of motorcycles, electric bicycles for riding and the like and develop safety guarding actions with one helmet and one belt in China. The safety helmet comprises: shell, buffer layer, inner liner, chin guard, frenulum, goggles etc.. The shell is the outermost layer of the helmet, bears and disperses the impact when striking, is the first line of defence of protection head, can fully absorb collision energy, and the shell material is the core of helmet security to reduce or alleviate the injury to the wearer, so shell material's chooseing for use is very important.

At present, safety helmet manufacturers on the market are numerous, the quality is uneven, and the safety protection performance is worried. The shell material of some safety helmets has the defects of poor compressive strength, low performance caused by thermal oxidation, poor mechanical performance, poor temperature resistance, easy deformation, poor weather resistance, easy aging, easy embrittlement, easy stress cracking, difficult printing and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a protective material for a safety helmet shell.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a protective material for safety helmet shell, includes protective housing, protective housing includes the inoxidizing coating, the inoxidizing coating adopts the shaping of polycarbonate material, and the thickness of inoxidizing coating is 0.7mm, the inoxidizing coating internal surface is equipped with the buffer layer, and the buffer layer bonds and fixes at the inoxidizing coating internal surface, and the buffer layer adopts the cutting of polyurethane material shaping, and the thickness of buffer layer is 15mm, buffer layer internal surface parcel has the inner liner, and the inner liner adopts netted cotton to tailor the shaping, and the thickness of inner liner is 2 mm.

Preferably, the outer surface of the protective layer is provided with a spraying layer, and the thickness of the spraying layer is 2 mm.

Preferably, the protective housing surface is equipped with the goggles, the both ends of goggles are equipped with the connecting screw, and goggles and protective housing pass through connecting screw swing joint, and the goggles adopts polyvinyl chloride material extrusion, and the thickness of goggles is 2 mm.

Preferably, the bottom of the protective shell is provided with a neck guard, the top end of the neck guard is sewn with the bottom of the protective shell, the neck guard is communicated with the protective shell, the outer surface of the neck guard is formed by cutting leather profiles, and cotton profiles are sewn inside the neck guard.

Preferably, the thickness of protective housing is 20mm, and protective housing comprises spraying layer, inoxidizing coating, buffer layer and inner liner in proper order.

Advantageous effects

The polycarbonate material for the safety helmet shell has the characteristics of high impact resistance, excellent toughness, high dimensional stability, good electrical insulation performance, high temperature resistance, good weather resistance, easiness in processing and the like, plays a good protection role, plays an increasingly important role in national economy and life, and has wide development prospect.

Drawings

FIG. 1 is a schematic perspective view of a protective housing;

FIG. 2 is a perspective view of the helmet;

FIG. 3 is a cross-sectional view of a helmet;

fig. 4 is a cross-sectional view of the protective housing.

Illustration of the drawings:

1. a protective housing; 2. spraying a layer; 3. a protective layer; 4. a buffer layer; 5. an inner liner layer; 6. goggles; 7. neck protection; 8. and connecting screws.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easily understood, the utility model is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the utility model, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-4, a protective material for safety helmet shell, including protecting sheathing 1, protecting sheathing 1 includes inoxidizing coating 3, inoxidizing coating 3 adopts the shaping of polycarbonate material, and the thickness of inoxidizing coating 3 is 0.7mm, 3 internal surfaces of inoxidizing coating are equipped with

buffer layer

4, and 4 bonding of buffer layer are fixed at 3 internal surfaces of inoxidizing coating, and buffer layer 4 adopts the cutting shaping of polyurethane material, and buffer layer 4's thickness is 15mm, 4 internal surface coating of buffer layer has inner liner 5, and inner liner 5 adopts netted cotton to tailor the shaping, and the thickness of inner liner 5 is 2mm, protecting sheathing 1's thickness is 20mm, and protecting sheathing 1 comprises spraying layer 2 in proper order, inoxidizing coating 3, buffer layer 4 and inner liner 5.

3 surfaces of inoxidizing coating are equipped with spraying layer 2, and the thickness on spraying layer 2 is 2mm, 1 surface of protecting sheathing is equipped with goggles 6, goggles 6's both ends are equipped with connecting screw 8, and goggles 6 and protecting sheathing 1 pass through connecting screw 8 swing joint, and goggles 6 adopts polyvinyl chloride material extrusion, and goggles 6's thickness is 2mm, protecting sheathing 1's bottom is equipped with rib 7, and rib 7's top and protecting sheathing 1 bottom are sewed up, rib 7 and protecting sheathing 1 intercommunication, and rib 7 surface adopts leather section bar cutting shaping, and rib 7 inside has sewed up cotton section bar.

The polycarbonate material is prepared from PC with a melt index of 6g/10min-8g/10min, weather-proof PC with a melt index of 8g/10min-12g/10min, 0-2% of color master batch, the temperature is controlled at 120 ℃, the time is controlled at 1-2h, and the continuous operation is carried out; then, weighing various raw materials of polycarbonate and 0-2% of color master batch by mass percent, adding the raw materials into a stirrer, and mixing for about 5-10 min; and finally, extruding the uniformly mixed materials through a single-screw extruder at the temperature of 250-290 ℃, metering by a filter screen and a melt pump, shearing and preplasticizing, extruding, further plasticizing in a die head at the temperature of 250-285 ℃, tabletting and molding by a three-roll calender, cooling and shaping, sticking a protective film, rolling and slicing to obtain the polycarbonate material for the safety helmet shell.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A protective material for a safety helmet shell, comprising a protective shell (1), characterized in that: protective housing (1) includes inoxidizing coating (3), the shaping of polycarbonate material is adopted in inoxidizing coating (3), and the thickness of inoxidizing coating (3) is 0.7mm, inoxidizing coating (3) internal surface is equipped with buffer layer (4), and buffer layer (4) bonding fixes at inoxidizing coating (3) internal surface, and buffer layer (4) adopt the polyurethane material cutting shaping, and the thickness of buffer layer (4) is 15mm, buffer layer (4) internal surface parcel has inner liner (5), and inner liner (5) adopt netted cotton to tailor the shaping, and the thickness of inner liner (5) is 2 mm.

2. A protective material for a safety helmet shell according to claim 1, wherein: the outer surface of the protective layer (3) is provided with a spraying layer (2), and the thickness of the spraying layer (2) is 2 mm.

3. A protective material for a safety helmet shell according to claim 1, wherein: protective housing (1) surface is equipped with goggles (6), the both ends of goggles (6) are equipped with connecting screw (8), and goggles (6) and protective housing (1) are through connecting screw (8) swing joint, and goggles (6) adopt polyvinyl chloride material extrusion, and the thickness of goggles (6) is 2 mm.

4. A protective material for a safety helmet shell according to claim 1, wherein: the bottom of protecting sheathing (1) is equipped with rib (7), and sews up in the top and protecting sheathing (1) bottom of rib (7), rib (7) and protecting sheathing (1) intercommunication, and rib (7) surface adopts leather section bar cutting shaping, and the cotton section bar has been sewed up to rib (7) inside.

5. A protective material for a safety helmet shell according to claim 1, wherein: the thickness of protecting sheathing (1) is 20mm, and protecting sheathing (1) comprises spraying layer (2), inoxidizing coating (3), buffer layer (4) and inner liner (5) in proper order.