CN212394028U - Lightning protection boot with excellent energy absorption and impact resistance - Google Patents
Lightning protection boot with excellent energy absorption and impact resistance Download PDFInfo
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- CN212394028U CN212394028U CN202020665395.8U CN202020665395U CN212394028U CN 212394028 U CN212394028 U CN 212394028U CN 202020665395 U CN202020665395 U CN 202020665395U CN 212394028 U CN212394028 U CN 212394028U
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Abstract
The utility model provides a lightning protection boots that energy-absorbing shock resistance is excellent, including the boots end and vamp, the boots end includes from the bottom up connects gradually the rubber layer that sets up, the rubber fiber composite bed that is made by the mutual gomphosis of hydrogenated nitrile rubber layer and aramid fiber cloth, the polyurethane layer, EPP layer that the embedded spiral wound formula drum type aramid fiber honeycomb cushions energy-absorbing spare and the puncture-proof layer that is made by ultra high molecular weight polyethylene UD cloth hot pressing, the vamp includes the memory sponge layer that bonds from inside to outside in proper order, the ultra high molecular weight polyethylene fiber layer that has three-dimensional porous structure, fibre cloth stromatolite and cowhide layer; by utilizing the mutual cooperation of the structures of all layers, the manufactured boot sole and boot vamp have excellent impact resistance, energy absorption and puncture resistance, and the lightning protection boot manufactured by the boot sole and the boot vamp has excellent protection performance.
Description
Technical Field
The utility model relates to a protection shoes field, concretely relates to lightning protection boots that energy-absorbing shock resistance is excellent.
Background
With the rapid development of scientific and technical amount, people have higher and higher requirements on protective equipment. The lightning protection boots are one of the protective equipment which is commonly used and very important in blocking and weakening shock waves and fragments generated by landmine explosion in the mine sweeping process, improve the impact energy absorption characteristic and the anti-puncture performance of the lightning protection boots, can bring better protection for wearing personnel, and reduce the risk that the lightning protection boots are permanently damaged or even lose lives when the lightning protection boots are unfortunately touched with explosives or landmines. Traditional lightning protection shoes boots mostly adopt heavier materials such as steel sheet preparation lightning protection shoes, lead to the lightning protection shoes that make comparatively heavy, be difficult for buckling, aggravate personnel's of dress burden, bring inconvenience for the personnel of wearing for a long time, comfort level and usability are relatively poor.
Therefore, in order to improve the comfort and usability of the lightning protection boots, the lightning protection boots with light weight and excellent energy absorption and impact resistance need to be designed.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a lightning protection boots that energy-absorbing shock resistance is excellent.
The utility model provides a lightning protection boots that energy-absorbing shock resistance is excellent, including boot bottom and vamp, the boot bottom includes rubber layer, rubber fiber composite bed, polyurethane layer, EPP layer and the puncture-proof layer that connect gradually from bottom to top and set up;
a spiral winding type cylindrical aramid honeycomb buffering energy absorption piece is embedded in the polyurethane layer, the spiral winding type cylindrical aramid honeycomb buffering energy absorption piece is formed by crimping and enclosing an aramid corrugated layer along the length direction, and the aramid corrugated layer is formed by bonding semi-hexagonal aramid corrugated cloth and aramid composite cloth; here, the curling along the length direction means curling from one side to the other side like a scroll, and a multilayer spiral structure is formed; impregnating aramid fiber cloth, compacting and curing to prepare aramid fiber composite cloth, and coating the impregnated aramid fiber cloth on the upper surface of a corrugated mold for shaping and pre-curing to prepare semi-hexagonal aramid fiber corrugated cloth; phenolic resin is adopted as the impregnating resin of the aramid fiber cloth. And (3) coating an adhesive on the lower surface of the trough of the half-hexagonal aramid fiber corrugated cloth, and then bonding the adhesive on the surface of the aramid fiber composite cloth to obtain the aramid fiber corrugated layer. The polyurethane layer is provided with a groove, and the conformal cylindrical aramid honeycomb buffering energy-absorbing piece can be embedded. The energy absorption of the cylindrical aramid fiber honeycomb buffering energy absorption piece is far higher than that of a common hexagonal aramid fiber honeycomb in volume ratio, and the energy absorption of the cylindrical aramid fiber honeycomb buffering energy absorption piece is similar to that of the common hexagonal aramid fiber honeycomb in mass ratio, so that the cylindrical aramid fiber honeycomb buffering energy absorption piece is a buffering energy absorption material which is light in weight and has excellent buffering energy absorption characteristics; the cylindrical aramid fiber honeycomb buffering energy-absorbing piece is embedded into the polyurethane layer, so that the buffering energy-absorbing capacity of the polyurethane layer can be greatly improved;
the rubber fiber composite layer is formed by bonding a plurality of hydrogenated nitrile-butadiene rubber layers and a plurality of aramid fiber cloths at intervals; the impact load peak value and the energy absorption value of the composite material prepared by the mutual embedding of the hydrogenated nitrile-butadiene rubber layer and the aramid fiber cloth are far greater than those of an embedded co-cured composite material prepared by taking the hydrogenated nitrile-butadiene rubber as a matrix phase and the aramid fiber as a reinforcing phase, and the composite material with the structure has more excellent impact resistance and energy absorption characteristics and also has certain puncture resistance. The boot sole with excellent protection performance and comfort can be prepared by utilizing the cooperative matching among the rubber layer, the rubber fiber composite layer, the polyurethane layer and the EPP layer which are sequentially connected, so that the prepared boot sole has excellent impact-resistant and energy-absorbing characteristics, and combining the puncture-resistant layer. At the same time, these materials are lighter and the resulting sole is also lighter.
Furthermore, the number of the spiral winding type cylindrical aramid fiber honeycomb buffering energy-absorbing pieces is at least three, and the spiral winding type cylindrical aramid fiber honeycomb buffering energy-absorbing pieces are respectively arranged in a front palm area, an arch area and a heel area of the polyurethane layer. The sole can be better protected.
Further, the outer diameter of the spiral wound cylindrical aramid honeycomb buffering energy-absorbing piece is 3-5 cm.
Further, the thickness of the hydrogenated nitrile rubber layer is 1.0-1.5 mm. The rubber fiber composite layer prepared by the hydrogenated nitrile rubber layer with the thickness has higher impact load peak value and energy absorption value.
Further, the rubber fiber composite layer is formed by bonding three hydrogenated nitrile rubber layers and two aramid fiber cloths at intervals to form a mutually embedded structure; the thickness of the hydrogenated nitrile rubber layer at the lowermost layer is 1.0mm, and the thickness of the hydrogenated nitrile rubber layers at the uppermost layer and the middle layer is 1.5 mm. The hydrogenated nitrile rubber layers with the thicknesses are selected to be mutually embedded with the aramid fiber cloth, so that the obtained rubber fiber composite layer can have a high impact load peak value and an energy absorption peak value at the same time.
Further, the anti-puncture layer is formed by hot pressing of ultra-high molecular weight polyethylene UD cloth.
Further, the thickness of the polyurethane layer is 10-15 mm; the thickness of the EPP layer is 3-3.5 mm; the thickness of the puncture-proof layer is 5-8 mm. By controlling the thickness of each layer, the boot sole manufactured by the method has excellent protection effect.
Further, the vamp comprises a memory sponge layer, an ultrahigh molecular weight polyethylene fiber layer, a fiber cloth lamination layer and a cow leather layer which are sequentially bonded from inside to outside. The vamp made of the raw materials is light, and through the synergistic effect of the memory sponge layer, the ultrahigh molecular weight polyethylene fiber layer and the fiber cloth in the laminating direction, the shock resistance and the puncture resistance of the vamp can be improved, and a better protection effect is achieved; the memory sponge here is high density memory sponge, and memory resilience is good, and ventilative and can resume original state after receiving the pressure, has shock attenuation, absorption impact force and waterproof ventilative effect, and adsorption efficiency is also stronger, and the vamp adopts the memory sponge to increase the comfort level of dress the inside most, utilizes the antibiotic effect that memory sponge layer has moreover, can solve the problem that the shoes content easily multiplied the bacterium to a certain extent.
Further, the ultra-high molecular weight polyethylene fiber layer is of a three-dimensional porous structure with three-dimensional communication holes; the material has the advantages of energy absorption and buffering performance, good impact resistance and certain puncture-proof function; the fiber cloth lamination is formed by hot pressing 4-6 layers of fiber cloth and 2 layers of thermoplastic films; the fiber cloth is made of aramid fibers or ultra-high molecular weight polyethylene fibers, the thermoplastic film can be a polyethylene film, a polyvinyl chloride film, an EVA hot melt adhesive film and the like, and the fiber cloth plays a role in adhering fiber layers by melting under a heating condition, so that the fiber layers can play a synergistic effect in resisting impact and preventing puncture.
Furthermore, the boot head of the lightning protection boot is also provided with a protection toe cap for protecting toes; the protective bag head is formed by compounding glass fibers and resin.
The utility model has the advantages that:
the utility model provides a lightning protection boots's energy-absorbing shock resistance and anti-puncture ability are all comparatively excellent, can bring better protection for the personnel of dress. The boot sole is formed by sequentially bonding a rubber layer, a rubber fiber composite layer which is prepared by mutually embedding a hydrogenated nitrile rubber layer and aramid fiber cloth, a polyurethane layer which is internally embedded with a spiral wound cylindrical aramid honeycomb buffering energy-absorbing part, an EPP layer and an anti-puncturing layer which is prepared by hot-pressing ultra-high molecular weight polyethylene UD cloth, the rubber fiber composite layer and the polyurethane layer with special structures have very excellent anti-impact energy-absorbing characteristics, the anti-impact energy-absorbing capability can be further enhanced by combining the rubber layer and the EPP layer, and the manufactured boot sole can be ensured to have excellent anti-impact energy-absorbing capability and anti-puncturing capability by utilizing the mutual synergistic matching of the structures of the layers; the boot vamp is formed by bonding a memory sponge layer, an ultrahigh molecular weight polyethylene fiber layer with a three-dimensional porous structure, a fiber cloth lamination layer and a cow leather layer, the memory sponge layer and the ultrahigh molecular weight polyethylene fiber layer with the three-dimensional porous structure are cooperatively matched, so that the boot vamp can have good buffering and energy absorbing capacity, the boot vamp has excellent shock resistance, and the boot vamp can have excellent anti-piercing capacity by utilizing the mutual matching of the ultrahigh molecular weight polyethylene fiber layer with the three-dimensional porous structure and the fiber cloth lamination layer. Furthermore, the utility model provides a light material is all adopted at the vamp and the sole of the boots of lightning protection boots, can effectively solve the comparatively heavy and difficult scheduling problem of buckling of current lightning protection boots.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural view of the lightning protection boot of the present invention;
fig. 2 is a partial view of the aramid fiber corrugated layer of the present invention;
FIG. 3 is a plan view of the spiral wound cylindrical aramid honeycomb energy absorption member of the present invention;
FIG. 4 is a schematic structural diagram of the rubber fiber composite layer of the present invention;
fig. 5 is a schematic structural view of the ultra-high molecular weight polyethylene fiber layer of the present invention;
in the figure:
11. the rubber layer, 12, a rubber fiber composite layer, 12a, a hydrogenated nitrile rubber layer, 12b, aramid fiber cloth, 13, a polyurethane layer, 14, an EPP layer, 15, a puncture-proof layer, 16, a spiral winding type cylindrical aramid honeycomb buffering energy-absorbing piece, 16a, semi-hexagonal aramid corrugated cloth, 16b, aramid composite cloth, 21, a memory sponge layer, 22, an ultrahigh molecular weight polyethylene fiber layer, 23, a fiber cloth lamination layer, 24 and a cow leather layer.
Detailed Description
Fig. 1 is a schematic structural view of the lightning protection boot of the present invention; fig. 2 is a partial view of the aramid fiber corrugated layer of the present invention; fig. 3 is a plan view of the spiral wound cylindrical aramid honeycomb energy absorption member 16 of the present invention; fig. 4 is a schematic structural diagram of the rubber fiber composite layer 12 of the present invention; fig. 5 is a schematic structural view of the ultra-high molecular weight polyethylene fiber layer 22 of the present invention; as shown in the figure:
the lightning protection boot with excellent energy absorption and impact resistance provided by the embodiment comprises a boot sole and a boot vamp, wherein the boot sole comprises a rubber layer 11, a rubber fiber composite layer 12, a polyurethane layer 13, an EPP layer 14 and an anti-puncture layer 15 which are sequentially connected from bottom to top;
a spiral winding type cylindrical aramid honeycomb buffering energy absorption piece 16 is embedded into the polyurethane layer 13, the spiral winding type cylindrical aramid honeycomb buffering energy absorption piece 16 is formed by crimping and enclosing an aramid corrugated layer along the length direction, and the aramid corrugated layer is formed by bonding a half-hexagonal aramid corrugated cloth 16a and an aramid composite cloth 16 b; here, the curling along the length direction means curling from one side to the other side like a scroll, and a multilayer spiral structure is formed; impregnating the aramid fiber cloth 12b, compacting and curing to prepare aramid fiber composite cloth 16b, and coating the impregnated aramid fiber cloth 12b on the upper surface of a corrugated mold for shaping and pre-curing to prepare semi-hexagonal aramid fiber corrugated cloth 16 a; phenolic resin is used as the impregnating resin of the aramid fiber cloth 12 b. And (3) coating an adhesive on the lower surface of the wave trough of the half-hexagonal aramid fiber corrugated cloth 16a, and then bonding the adhesive on the surface of the aramid fiber composite cloth 16b to obtain the aramid fiber corrugated layer. The polyurethane layer 13 is provided with a groove, so that the conformal cylindrical aramid honeycomb buffering energy-absorbing piece can be embedded. The energy absorption of the cylindrical aramid fiber honeycomb buffering energy absorption piece is far higher than that of a common hexagonal aramid fiber honeycomb in volume ratio, and the energy absorption of the cylindrical aramid fiber honeycomb buffering energy absorption piece is similar to that of the common hexagonal aramid fiber honeycomb in mass ratio, so that the cylindrical aramid fiber honeycomb buffering energy absorption piece is a buffering energy absorption material which is light in weight and has excellent buffering energy absorption characteristics; the cylindrical aramid honeycomb buffering and energy absorbing piece is embedded into the polyurethane layer 13, so that the buffering and energy absorbing capacity of the polyurethane layer 13 can be greatly improved;
the rubber fiber composite layer 12 is formed by bonding a plurality of hydrogenated nitrile-butadiene rubber layers 12a and a plurality of aramid fiber cloth 12b at intervals; the impact load peak value and the energy absorption value of the composite material prepared by the mutual embedding of the hydrogenated nitrile-butadiene rubber layer 12a and the aramid fiber cloth 12b are far greater than those of an embedded co-cured composite material prepared by taking the hydrogenated nitrile-butadiene rubber as a matrix phase and the aramid fiber as a reinforcing phase, and the composite material with the structure has more excellent impact resistance and energy absorption characteristics and also has certain puncture resistance. The boot sole with excellent protection performance and comfort can be prepared by utilizing the cooperative matching among the sequentially connected rubber layer, the rubber fiber composite layer 12, the polyurethane layer 13 and the EPP layer 14 and combining the puncture-proof layer. At the same time, these materials are lighter and the resulting sole is also lighter.
In this embodiment, at least three spiral winding type cylindrical aramid honeycomb buffering energy-absorbing pieces 16 are respectively disposed in the palm region, the arch region and the heel region of the polyurethane layer 13. Can better protect the sole of the foot.
In this embodiment, the outer diameter of the spiral wound cylindrical aramid honeycomb buffering energy-absorbing member 16 is 3-5 cm.
In this embodiment, the thickness of the hydrogenated nitrile rubber layer 12a is 1.0 to 1.5 mm. The rubber fiber composite layer 12 made of the hydrogenated nitrile rubber layer 12a with the thickness has a high impact load peak value and a high energy absorption value.
In this embodiment, the rubber fiber composite layer 12 is formed by bonding three hydrogenated nitrile rubber layers 12a and two aramid fiber fabrics 12b at intervals to form a mutually embedded structure; the thickness of the lowermost hydrogenated nitrile rubber layer 12a was 1.0mm, and the thickness of the uppermost and intermediate hydrogenated nitrile rubber layers 12a were each 1.5 mm. By selecting the hydrogenated nitrile rubber layer 12a and the aramid fiber cloth 12b having these thicknesses to be fitted to each other, the obtained rubber fiber composite layer 12 can be ensured to have a high impact load peak value and an energy absorption peak value at the same time.
In this embodiment, the anti-puncture layer 15 is formed by hot-pressing ultra-high molecular weight polyethylene UD cloth.
In this embodiment, the thickness of the polyurethane layer 13 is 10-15 mm; the thickness of the EPP layer 14 is 3-3.5 mm; the thickness of the puncture-proof layer 15 is 5-8 mm. By controlling the thickness of each layer, the boot sole manufactured by the method has excellent protection effect.
In this embodiment, the vamp comprises a memory sponge layer 21, an ultrahigh molecular weight polyethylene fiber layer 22, a fiber cloth lamination layer 23 and a cow leather layer 24 which are sequentially bonded from inside to outside. The vamp made of the raw materials is light, and the shock resistance and the puncture resistance of the vamp can be improved through the synergistic effect of the memory sponge layer 21, the ultra-high molecular weight polyethylene fiber layer 22 and the fiber cloth lamination layer 23, so that a better protection effect is achieved; the memory sponge here is high density memory sponge, and memory resilience is good, and ventilative and can resume original state after receiving the pressure, has shock attenuation, absorption impact force and waterproof ventilative effect, and adsorption efficiency is also stronger, and the vamp adopts the memory sponge to increase the comfort level of dress the inside most, utilizes the antibiotic effect that memory sponge layer 21 has moreover, can solve the problem that the shoes content easily multiplied the bacterium to a certain extent.
In this embodiment, the ultra-high molecular weight polyethylene fiber layer 22 has a three-dimensional porous structure with three-dimensional communication holes; the material has the advantages of energy absorption and buffering performance, good impact resistance and certain puncture-proof function; the fiber cloth lamination layer 23 is formed by hot pressing of 4-6 layers of fiber cloth and 2 layers of thermoplastic films; the fiber cloth is made of aramid fibers or ultra-high molecular weight polyethylene fibers, the thermoplastic film can be a polyethylene film, a polyvinyl chloride film, an EVA hot melt adhesive film and the like, and the fiber cloth plays a role in adhering fiber layers by melting under a heating condition, so that the fiber layers can play a synergistic effect in resisting impact and preventing puncture.
In this embodiment, the boot head of the lightning protection boot is further provided with a toe cap for protecting toes; the protective bag head is formed by compounding glass fibers and resin.
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 (9)
1. The utility model provides an energy-absorbing lightning protection boots that shock resistance is excellent, includes boot bottom and vamp, its characterized in that: the boot sole comprises a rubber layer, a rubber fiber composite layer, a polyurethane layer, an EPP layer and an anti-puncture layer which are sequentially connected from bottom to top;
a spiral winding type cylindrical aramid honeycomb buffering energy absorption piece is embedded in the polyurethane layer, the spiral winding type cylindrical aramid honeycomb buffering energy absorption piece is formed by crimping and enclosing an aramid corrugated layer along the length direction, and the aramid corrugated layer is formed by bonding semi-hexagonal aramid corrugated cloth and aramid composite cloth;
the rubber fiber composite layer is formed by bonding a plurality of layers of hydrogenated nitrile-butadiene rubber layers and a plurality of layers of aramid fiber cloth at intervals.
2. The lightning protection boot with excellent energy absorption and impact resistance as claimed in claim 1, wherein: the spiral winding type cylindrical aramid fiber honeycomb buffering energy-absorbing pieces are at least three and are respectively arranged in a front palm area, an arch area and a heel area of the polyurethane layer.
3. The lightning protection boot with excellent energy absorption and impact resistance as claimed in claim 2, wherein: the outer diameter of the spiral wound cylindrical aramid fiber honeycomb buffering energy absorption piece is 3-5 cm.
4. The lightning protection boot with excellent energy absorption and impact resistance as claimed in claim 1, wherein: the thickness of the hydrogenated nitrile rubber layer is 1.0-1.5 mm.
5. The lightning protection boot with excellent energy absorption and impact resistance as claimed in claim 4, wherein: the rubber fiber composite layer is formed by bonding three hydrogenated nitrile-butadiene rubber layers and two layers of aramid fiber cloth at intervals; the thickness of the hydrogenated nitrile rubber layer at the lowermost layer is 1.0mm, and the thickness of the hydrogenated nitrile rubber layers at the uppermost layer and the middle layer is 1.5 mm.
6. The lightning protection boot with excellent energy absorption and impact resistance as claimed in claim 1, wherein: the anti-puncture layer is formed by hot pressing of ultra-high molecular weight polyethylene UD cloth.
7. The lightning protection boot with excellent energy absorption and impact resistance as claimed in claim 1, wherein: the thickness of the polyurethane layer is 10-15 mm; the thickness of the EPP layer is 3-3.5 mm; the thickness of the puncture-proof layer is 5-8 mm.
8. The lightning protection boot with excellent energy absorption and impact resistance as claimed in claim 1, wherein: the vamp comprises a memory sponge layer, an ultrahigh molecular weight polyethylene fiber layer, a fiber cloth lamination layer and a cow leather layer which are sequentially bonded from inside to outside.
9. The lightning protection boot with excellent energy absorption and impact resistance as claimed in claim 8, wherein: the ultra-high molecular weight polyethylene fiber layer is of a three-dimensional porous structure with three-dimensional communication holes; the fiber cloth lamination is formed by hot pressing 4-6 layers of fiber cloth and 2 layers of thermoplastic films.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020665395.8U CN212394028U (en) | 2020-04-27 | 2020-04-27 | Lightning protection boot with excellent energy absorption and impact resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020665395.8U CN212394028U (en) | 2020-04-27 | 2020-04-27 | Lightning protection boot with excellent energy absorption and impact resistance |
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| Publication Number | Publication Date |
|---|---|
| CN212394028U true CN212394028U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020665395.8U Active CN212394028U (en) | 2020-04-27 | 2020-04-27 | Lightning protection boot with excellent energy absorption and impact resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212394028U (en) |
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2020
- 2020-04-27 CN CN202020665395.8U patent/CN212394028U/en active Active
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