CN205066574U - Police uses anti -riot helmet - Google Patents

Abstract

Police uses anti -riot helmet comprises the helmet shell body, face guard and rib, and the helmet shell body is by interior helmet shell, shellproof inner bag, foam inner bag, the buffer layer of including in proper order extremely outward, and this shellproof inner bag passes through cavity fix with rivet in helmet shell's inboard, and the foam inner bag is inlayed on shellproof inner bag wall, on the buffer layer is equipped with the foam inner bag, and still is equipped with the head circumference regulating ring on the buffer layer, shellproof inner bag is that the high temperature high pressure integrative compression molding form by high strength, light -weighted aramid fiber fabric and fire -retardant colloid flooding, the utility model discloses helmet puncture resistance can be good, and it is good to absorb the collision energy, has certain shellproof, fire resistance, and wear comfortablely, and the rib can be dismantled, nimble alternative use.

Description

Anti-violence helmet for policeman

Technical field

The utility model belongs to police technique with the apparatus field, and what be specifically related to is a kind of Anti-violence helmet for policeman with certain ballistic performance.

Background technology

Public security organ, when 110 receive a crime report, for various different accident, such as drunkly to make trouble, military madman and committing murder with a knife, and public security security personnel its people's personal safety and law enforcement safety when tackling these events are seriously affected; Particularly when performing anti-riot task; when bullet body high-speed impact helmet shell; usual helmet shell shock place destroys; body immerses helmet shell, and even destroys generation with elastic-plastic deformation, thus badly influences the personal safety of operational staff; therefore be badly in need of developing a kind of anti-riot helmet; the personal safety of available protecting operational staff, requirement can resist the attack of sharp weapon, club, non-explosivity ammunition and chemical liquid, requires to have certain ballistic performance simultaneously.

Summary of the invention

The purpose of this utility model solves the deficiencies in the prior art, provides a kind of reasonable in design, easy to use, can perform the Anti-violence helmet for policeman of the personal safety of anti-riot personnel by available protecting.

The utility model is achieved through the following technical solutions: Anti-violence helmet for policeman, be made up of helmet housing, face shield and rib, it is characterized in that: described helmet housing comprises helmet shell, shellproof inner bag, foaming lining, cushion from outside to inside successively, this shellproof inner bag is fixed on the inner side of helmet shell by hollow rivet, foaming lining is embedded on shellproof wall of inner container, cushion is located on foaming lining, and cushion is also provided with head circumference adjustment circle.

Described shellproof inner bag is flooded by high strength, light-weighted kevlar fabric and fire-retardant colloid, and HTHP Integral mold is molded to be formed.

The large I free adjustment of internal diameter of described head circumference adjustment circle.

The bilateral symmetry of described helmet housing is provided with sound hole cover.

Described face shield adopts PC material integrated injection molding, and face shield surface coating antifogging coating.

The liner of described helmet housing comprises head circumference adjustment circle, cushion, earflap, left wearable device and right wearable device; Earflap is the symmetrical both sides being located at helmet housing respectively; Inner lining material is made up of the cool-max cloth of Sandwich screen-cloth and moisture absorbing and sweat releasing.

The beneficial effects of the utility model embody and are: compared with prior art, and the utility model helmet puncture-resistant excellent performance absorbs collision energy good, has certain shellproof, anti-flammability, and comfortable wearing, rib is detachable, flexible choice for use.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is described in detail.

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model cross-sectional view.

Under to be classified as in figure the concrete title of each mark: 1, helmet body; 2, face shield; 3, rib, 4, chin strap; 5, left wearable device; 6, right wearable device; 101, helmet shell; 102, shellproof inner bag; 103, foaming lining; 104, cushion; 105, earflap; 106, left wearable device; 107, right wearable device; 108, sound hole cover.

Detailed description of the invention

As shown in Figures 1 and 2, Anti-violence helmet for policeman, be made up of helmet housing 1, face shield 2 and rib 3, described helmet housing 1 comprises helmet shell 101, shellproof inner bag 102, foaming lining 103, cushion 104 from outside to inside successively, this shellproof inner bag 102 is fixed on the inner side of helmet shell 101 by hollow rivet, foaming lining 103 is embedded on shellproof inner bag 102 wall, and cushion 104 is located on foaming lining 103, and cushion 104 is also provided with head circumference adjustment circle; The PC/ABS plastic alloy material injection moulding that the helmet shell 101 of helmet body 1 adopts mechanical performance superior, embedded ballistic fabric and cushion can absorb collision energy, there is the resistance to barrier propterty penetrated, the ability (10m distance) that 97-1 formula Shotgun launches 97 formula 18.4mm lethal shells can be protected; Helmet shell 101 outer surface adopts anti-flaming dope to spray; Face shield 2 adopt light transmittance good, there is anti-fog function and the high modification material of polycarbonate of intensity is made; Head circumference adjustment circle adopts adjustable structure, helmet helmet shell can be made to play and hold and wear using function, can adapt to again different head circumference personnel and wear; Rib is detachable.

Described shellproof inner bag 102 is flooded by high strength, light-weighted kevlar fabric and fire-retardant colloid, and HTHP Integral mold is molded to be formed.

The bilateral symmetry of described helmet housing 1 is provided with sound hole cover 108.

The liner of described helmet housing 1 comprises head circumference adjustment circle, cushion 104, earflap 105, left wearable device 106 and right wearable device 107; Earflap 105 is the symmetrical both sides being located at helmet housing 1 respectively; Inner lining material is made up of the cool-max cloth of Sandwich screen-cloth and moisture absorbing and sweat releasing.

The utility model anti-riot helmet helmet shell adopts PC/ABS alloy formula, and compared with ABS, the mobility of PC/ABS blend is lower, and PC content is higher, and processing flowability is poorer; Simultaneously the compatibility of PC and ABS is also poor, often forms unstable blending structure, causes the mechanical property of material lower, and this is also become one of principal element of affecting the anti-riot performance of the helmet; The modified additive of therefore the utility model helmet is composite multiple copolymer, gives full play to copolymer to improving helmet intensity and improving the effect of processing fluidity, to reach the optimization of helmet performance; After tested, comprehensive anti-riot performance indications improve more than 20%, meet the requirement of development index.

The Material selec-tion of shellproof inner bag of the utility model helmet and the design of technique are considerable links, in the selection of bullet resistant material, first the relevant information making bulletproof halmet is both at home and abroad investigated, carry out l-G simulation test simultaneously and grope application ANSYS and LS-DYNA software, certain bullet resistant material parameter (modulus, intensity, surface density etc.) and shell fragment parameter (material, quality, speed) are inputted computer, with finite element method, to the result of the attack numerical simulation of composite, instruct the design and manufaction of anti-riot helmet; Secondly the lay-up process of the shellproof inner bag of the helmet is designed according to above finding and simulation theory data-guiding, corresponding shellproof assessment test is carried out after being made into corresponding goods, after repeatedly testing, anti-riot helmet has certain bullet-proof, meet main tactical and technical norms, this tactical and technical norms is separated.

Shellproof inner bag adopts multiply cloth mould pressing process; First, select suitable resin matrix, one is the wetting property of reinforcing material, to form good bonding on synthetic resin and reinforcing material interface; Two is guarantee suitable viscosity and good mobility, can be full of whole die cavity equably under pressing conditions together with reinforcing material; Three is have suitable curing rate under pressing conditions, and does not produce accessory substance in solidification process or accessory substance is few, and cubical contraction is little; Four is to meet the specific performance requirement of pressing; Secondly, at selected corresponding auxiliary material, filler; Finally, by the fabric of pre-dipped resin adhesive liquid, be cut into required shape, then in metal die through heating and extrusion forming, by controlling the parameter such as temperature, pressure, time of forming process, obtain the product of best performance.

When bullet body high-speed impact helmet shell, usual helmet shell shock place destroys, and body immerses helmet shell, and even destroys generation with elastic-plastic deformation.Immerse in helmet shell penetrativeness Epidemiological Analysis at body, will the many factors such as geometry, size of body and helmet shell be designed.Plumb material parameter is in table 1; Aramid fiber cloth materials parameter is in table 2; Engineering plastic materials parameter is in table 3.

Table 1 plumb material parameter

Material type	Elastic modelling quantity (N/m2)	Poisson's ratio	Density (kg/m3)
				Plumbous	1.40E+10	0.4	1.10E+04

Table 2 aramid fiber material parameter

Material type	Grammes per square metre (g/m2)	Anti-impact force (KN)	Warp/weft direction stretch rate
				Aramid fiber	410	16/17	7.3%/6.8%

Table 3 engineering plastic materials parameter

Material type	Grammes per square metre (g/cm3)	Notched Izod impact hit intensity (Kj/m2)	Elongation at break
				Engineering plastics	1.1	25	40%

The impact momentum of bullet calculates:

P=mV

The quality of m---------bullet;

V---------bullet is at the initial velocity at 10 meters of;

Projectile impact is to the speed knots modification of helmet shell:

Δ v/ Δ t=(V end-V is just)/Δ t

The impact puncture penetration of bullet:

F=mg+mΔV/Δt

The impact puncture penetration of F------------bullet;

The acceleration change amount of Δ v/ Δ t------bullet;

The quality of m-----------bullet;

Calculate in conjunction with above-mentioned computing formula by given data,

Finally calculate and adopt the embedded two-layer aramid fiber inner bag of injection moulding helmet shell, the impact of bullet can be guarded against.

The utility model is mainly used in protecting individual soldier's head, face and neck during execution anti-riot task, and requirement can resist the attack of sharp weapon, club, non-explosivity ammunition and chemical liquid, requires to have certain ballistic performance simultaneously.

Claims (4)

1. Anti-violence helmet for policeman, be made up of helmet housing, face shield and rib, it is characterized in that: helmet housing comprises helmet shell, shellproof inner bag, foaming lining, cushion from outside to inside successively, this shellproof inner bag is fixed on the inner side of helmet shell by hollow rivet, foaming lining is embedded on shellproof wall of inner container, cushion is located on foaming lining, and cushion is also provided with head circumference adjustment circle.

2. Anti-violence helmet for policeman according to claim 1, is characterized in that: shellproof inner bag is flooded by high strength, light-weighted kevlar fabric and fire-retardant colloid, and HTHP Integral mold is molded to be formed.

3. Anti-violence helmet for policeman according to claim 1, is characterized in that: the bilateral symmetry of helmet housing is provided with sound hole cover.

4. Anti-violence helmet for policeman according to claim 1, is characterized in that: face shield adopts PC material integrated injection molding, and face shield surface coating antifogging coating.