CN210130432U

CN210130432U - Anti-smashing toe cap structure for protective boot

Info

Publication number: CN210130432U
Application number: CN201921063668.5U
Authority: CN
Inventors: 邹忌; 江卫东; 程秋萍
Original assignee: Jihua 3539 Shoe Making Co Ltd
Current assignee: Jihua 3539 Shoe Making Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-03-10
Anticipated expiration: 2029-07-09

Abstract

The utility model discloses a prevent pounding baotou structure for protection boots, including setting up in the prevent pounding baotou body of the inboard at protection boots group front end, prevent pounding baotou body from last to including ultrahigh molecular weight polyethylene fiber upper strata, compound honeycomb structure intermediate layer and ultrahigh molecular weight polyethylene fiber lower floor down in proper order, compound honeycomb structure intermediate layer is formed by glass fiber and resin complex, compound honeycomb structure intermediate layer has a plurality of evenly distributed compound honeycomb hole units, compound honeycomb hole unit comprises diamond-shaped hole and the circular port of plane distribution on four nodes of diamond-shaped hole, two adjacent edges of diamond-shaped hole are connected respectively in the different positions of circular port, compound honeycomb structure intermediate layer's thickness is 2-4 cm; the composite material has the characteristics of high strength, good impact resistance, light weight and easiness in forming, has the functions of energy absorption and good air permeability, improves the protective performance, enhances the comfort, and is easy to process and manufacture.

Description

Anti-smashing toe cap structure for protective boot

Technical Field

The utility model relates to a protective equipment field, concretely relates to prevent pounding baotou structure for protecting boots.

Background

For many years, industrial and mining boots which can only prevent water are used in China all the time. In the underground coal mine, accidents such as poor working conditions, waste rock fall, iron material dumping, sliding of a mine car, pickaxe digging foot, cluttering and enough crushing of rocks and the like are inevitable. The anti-smashing head is a key part of the safety boot. According to the use requirements, it has the characteristics of high strength, light weight, easy forming, reasonable structure and the like. The steel toe cap is a component with an irregular shape, the last is an irregular geometric body, and the manufacturing of a mold is troublesome and difficult. After the steel toe cap is added to the boot toe, the extension of the rubber surface is limited by the toe part, so that the toe part can not change along with the movement of the foot like the common rubber boot; the steel toe cap is too long, comfortable to wear and not easy to bend, and can cause damage to rubber materials at the edge of the toe cap, the size of the steel toe cap is short, and the steel toe cap cannot play a due protection role.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at overcoming the defect among the prior art, provide a prevent pounding baotou structure for protecting boots, not only have intensity height, impact resistance is good, light in weight, easy fashioned characteristics, more importantly still has the effect of energy absorption and the characteristics that the gas permeability is good, when improving barrier propterty, has strengthened the travelling comfort again, easily processing and preparation simultaneously.

The utility model discloses a prevent pounding baotou structure for protection boots, including setting up in the prevent pounding baotou body of the inboard at protection boots group front end, prevent pounding baotou body from last to including ultrahigh molecular weight polyethylene upper strata, compound honeycomb structure intermediate layer and ultrahigh molecular weight polyethylene lower floor down in proper order, compound honeycomb structure intermediate layer is formed by glass fiber and resin complex, compound honeycomb structure intermediate layer has a plurality of evenly distributed compound honeycomb hole units, compound honeycomb hole unit comprises diamond-shaped hole and the circular port of plane distribution on four nodes of diamond-shaped hole, two adjacent limits of diamond-shaped hole are connected respectively in the different positions of circular port, compound honeycomb structure intermediate layer's thickness is 2-4 mm; the upper layer of the ultra-high molecular weight polyethylene fiber and the lower layer of the ultra-high molecular weight polyethylene fiber are both three-dimensional porous structures with three-dimensional communication holes;

further, the distance between two circle centers of the composite honeycomb hole unit along the side of the diamond is 3-5 mm;

further, the aperture of the circular hole is 1-3 mm;

further, the wall thickness of the diamond hole is the same as that of the circular hole;

furthermore, the thickness of the wall of the rhombic hole and the thickness of the wall of the circular hole are 1-2 mm.

The utility model has the advantages that: the utility model discloses a prevent pounding baotou structure for protecting boots adopts special baotou structure on the boots group, and it is high to have intensity, and impact resistance is good, light in weight, easy fashioned characteristics, and more importantly still has energy absorption's effect and the characteristics that the gas permeability is good, when improving barrier propterty, has strengthened the travelling comfort again, easily processes and makes simultaneously, and the baotou has the characteristics of buckling, consequently also can not influence the travelling comfort even baotou length overlength. Because the toe cap adopts a porous structure, the weight is greatly reduced, the air permeability is good, and the energy absorption function is realized, so that the smashing prevention effect is greatly improved, and the service life of the protective boot is prolonged.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the composite honeycomb unit structure of the present invention;

FIG. 3 is an enlarged view of the composite honeycomb structure layer of the present invention;

fig. 4 is a schematic structural view of the ultra-high molecular weight polyethylene fiber layers (upper and lower layers) having a three-dimensional porous structure.

Detailed Description

Fig. 1 is a schematic structural view of the present invention, and fig. 2 is an enlarged view of a composite honeycomb unit structure of the present invention; FIG. 3 is an enlarged view of the composite honeycomb structure of the present invention; fig. 4 is a schematic structural view of the ultra-high molecular weight polyethylene fiber layers (upper and lower layers) having a three-dimensional porous structure. The anti-smashing toe cap structure for the protective boot comprises an anti-smashing toe cap body arranged on the inner side of the front end of a boot upper of the protective boot, the anti-smashing toe cap body sequentially comprises an ultrahigh molecular weight polyethylene fiber upper layer 1, a composite honeycomb structure interlayer 3 and an ultrahigh molecular weight polyethylene fiber lower layer 2 from top to bottom, the composite honeycomb structure interlayer 3 is formed by compounding glass fibers and resin, the composite honeycomb structure interlayer 3 is provided with a plurality of uniformly distributed composite honeycomb hole units, each composite honeycomb hole unit is composed of a diamond hole 31 and a circular hole 32 which is distributed on four nodes of the diamond hole 31 in a planar mode, two adjacent edges of the diamond hole 31 are respectively connected to different positions of the circular hole 32, and the thickness of the composite honeycomb structure interlayer 3 is 2-4 mm; the shape of the toe cap in the prior art is adapted to the shape of the front end face of the boot upper, and the upper layer 1 of the ultra-high molecular weight polyethylene fiber and the lower layer 2 of the ultra-high molecular weight polyethylene fiber are both three-dimensional porous structures 4 with three-dimensional communication holes; the anti-smashing wrapping head body is composed of three layers of structures, each layer of structure is provided with a porous structure, and specifically, the upper layer and the lower layer are three-dimensional porous structures 4, namely: the ultra-high molecular weight polyethylene fiber is of a three-dimensional porous structure 4 and is provided with three-dimensional porous connecting holes, the fibers form an upper layer and a lower layer of the wrapping head integrally, so that the air permeability is enhanced, the energy absorption and buffer performance are realized, the impact resistance is good, and the effects of light weight, softness and comfort are realized; the composite honeycomb structure interlayer 3 is formed by uniformly distributing cells formed by diamond-shaped holes 31 and round holes 32 replacing diamond-shaped nodes of the diamond-shaped holes 31, so that the special honeycomb structure is guaranteed not to deform and has a good energy absorption effect in the long-term use process, and therefore the composite honeycomb structure has certain impact resistance, the composite honeycomb layer is made of a rubber material, the special honeycomb structure is good in air permeability and also plays a role in heat insulation, the diamond-shaped holes 31 and the round holes 32 increase the porosity, materials are saved, and the composite honeycomb structure is lighter in weight. The three-layer structure of the packet head structure supports each other in function and is cooperated with each other, so that the integral protection performance is improved. When the toe cap is impacted or under gravity, each layer of structure of the toe cap can play a role in buffering and energy absorption, and the interlayer materials continuously weaken, resist and absorb impact force to reduce the impact force to the minimum. The three-layer structure of the toe cap can be fixed into a whole by bonding or sewing.

In the embodiment, the distance between two circle centers of the composite honeycomb hole unit along the side of the diamond is 3-5 mm; the position distribution of the diamond holes 31 and the round holes and the sizes of the holes directly determine the strength of the honeycomb structure, the distance between the diamond holes 31 and the round holes is too long, deformation resistance is affected, the distance is too small, and an energy recovery effect cannot be achieved, so that the proper size is guaranteed for rigidity and energy absorption performance, and the purpose of light weight is achieved.

In this embodiment, the diameter of the circular hole is 1-3 mm; the combination of the circular holes 32 and the diamond holes 31 enhances the rigidity of the composite honeycomb structure and improves the deformation resistance.

In this embodiment, the thickness of the diamond holes 31 is the same as that of the circular holes 32; the wall thickness is the same, and deformation time is unanimous, and the atress is also more even, guarantees the wholeness of compound honeycomb structural layer 3 atress.

In the embodiment, the thickness of the wall of the diamond hole 31 and the thickness of the wall of the circular hole 32 are 1-2 mm; it is difficult to satisfy both rigidity and energy absorption performance of the honeycomb structure if the wall thickness is too thick and too thin, and in addition, if the wall thickness is too thick, the light weight performance is also affected, so the position distribution, distance, pore diameter, and wall thickness of the diamond holes 31 and the circular holes 32 of the composite honeycomb structure layer 3 are all factors that are related to each other and affect each other.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a prevent pounding baotou structure for protecting boots which characterized in that: the anti-smashing shoe toe cap comprises an anti-smashing shoe toe cap body arranged on the inner side of the front end of a boot upper of a protective boot, the anti-smashing shoe toe cap body sequentially comprises an ultrahigh molecular weight polyethylene fiber upper layer, a composite honeycomb structure interlayer and an ultrahigh molecular weight polyethylene fiber lower layer from top to bottom, the composite honeycomb structure interlayer is formed by compounding glass fibers and resin, the composite honeycomb structure interlayer is provided with a plurality of composite honeycomb hole units which are uniformly distributed, each composite honeycomb hole unit is composed of a diamond hole and a circular hole which is distributed on four nodes of the diamond hole in a planar mode, two adjacent edges of the diamond hole are connected to different positions of the circular hole respectively, and the thickness of the composite honeycomb structure interlayer is 2-4 mm; the upper layer of the ultra-high molecular weight polyethylene fiber and the lower layer of the ultra-high molecular weight polyethylene fiber are both three-dimensional porous structures with three-dimensional communication holes.

2. The shell structure of claim 1, wherein: the distance between two circle centers of the composite honeycomb hole unit along the side length of the diamond is 3-5 mm.

3. The shell structure of claim 2, wherein: the aperture of the circular hole is 1-3 mm.

4. The shell structure of claim 3, wherein: the wall thickness of the diamond hole is the same as that of the circular hole.

5. The shell structure of claim 4, wherein: the thickness of the wall of the diamond hole and the thickness of the wall of the circular hole are 1-2 mm.