CN217946189U - Puncture-resistant umbrella-free military air-drop barrel - Google Patents
Puncture-resistant umbrella-free military air-drop barrel Download PDFInfo
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- CN217946189U CN217946189U CN202222376544.0U CN202222376544U CN217946189U CN 217946189 U CN217946189 U CN 217946189U CN 202222376544 U CN202222376544 U CN 202222376544U CN 217946189 U CN217946189 U CN 217946189U
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Abstract
The utility model discloses a no umbrella military use type air-drop bucket of anti impaling, include by outer to interior anti impaling the composite bed and sealed inlayer that set gradually, anti impaling the composite bed and including 2 at least first anti impaling layers and 1 at least second anti impaling layers, adjacent two-layer first anti impaling is provided with 1 at least second anti impaling layers between the layer, and sealed inlayer adopts the high density polyethylene layer. The utility model discloses in, anti impaling the composite bed is multilayer composite construction, simultaneously through utilizing multiple fibre to mix to weave and make the anti impaling layer of second, improve the intensity of airdrop bucket greatly, fall resistant nature, toughness, puncture resistance etc, sealed inlayer through setting up blow molding, improve the leakproofness of airdrop bucket, sealed inlayer adopts high density polyethylene, fine oil resistance and chemical stability have, and can be fine provide lightweight performance, the comprehensive properties is superior, can satisfy normal airdrop demand, possess excellent puncture resistance simultaneously, can obtain very good application in some special environment.
Description
Technical Field
The utility model belongs to the technical field of for military use material, concretely relates to for military use type air-drop bucket of no umbrella of anti impaling.
Background
The airdrop materials can quickly respond to the rescue demand, and strive for valuable time for rescue, and the method is an important strategic support means. However, the majority of the existing air-drop buckets are made of metal materials, the weight of the existing air-drop buckets is high, the existing air-drop buckets are inconvenient to carry and use, and the air-drop buckets are always required to be carried with parachutes to ensure that the air-drop buckets stably fall to the ground, the existing parachutes are greatly influenced by weather and wind power, fixed-point delivery of goods and materials cannot be achieved, meanwhile, the difficulty of emergency rescue is greatly increased, and the falling resistance and the puncture resistance are poor, so that high-altitude air-drop cannot be achieved.
Chinese patent, no. CN215155688 discloses a big load unmanned aerial vehicle air-drop box, improves the shock attenuation effect of air-drop box through increasing pulley and spring, but its body lacks better resistant falling nature and resistant striking nature, and pulley and spring are easily harmd, are unfavorable for using repeatedly, and the design is complicated, are unfavorable for industrial production.
Chinese patent, grant publication No. CN215323897 discloses an ultra-high molecular weight polyethylene air-drop box, and although the problem that a metal air-drop box is heavy in weight and not easy to transport and use is solved, such air-drop box is not resistant to falling and impact, and still needs to use a parachute to ensure stable delivery of the box, and the use of the parachute can lead to inaccurate drop location and is susceptible to weather influence.
Chinese patent, publication No. CN110760119, discloses a rotational molding air-drop box and a preparation method thereof, the air-drop box prepared by modified plastics well solves the problem of heavy dead weight of a metal air-drop box, but the air-drop box has low strength, is only suitable for air-drop under ultra-low altitude within 10 meters, has rigorous use conditions and is not suitable for aerial work.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem that exists among the prior art, the utility model aims to provide an anti for military use type air-drop bucket that does not have the umbrella who impales.
In order to realize the above purpose, reach above-mentioned technological effect, the utility model discloses a technical scheme be:
the utility model provides an anti umbrella military-type air-drop bucket of impaling, includes by outer to interior anti impaling composite bed and the sealed inlayer that sets gradually, anti impaling composite bed includes 2 at least first anti impaling layers and 1 at least second anti impaling layers, is provided with 1 at least second anti impaling layers between the adjacent two-layer first anti impaling layer, and sealed inlayer meets with first anti impaling layer, and first anti impaling layer adopts low density polyethylene film or sheet metal, and sealed inlayer adopts the high density polyethylene layer.
Furthermore, the second anti-puncture layer is a three-dimensional net structure formed by mixing and weaving high-density polyethylene fibers and at least one of ultrahigh molecular weight polyethylene fibers or aramid fibers.
Furthermore, the specifications of the high-density polyethylene fiber, the ultrahigh molecular weight polyethylene fiber and the aramid fiber are respectively 500-1500 dtex.
Further, the mass ratio of the anti-puncture composite layer in the anti-puncture composite layer and the sealing inner layer is 40-50%.
Further, the mass ratio of the first anti-puncturing layer in the first anti-puncturing layer to the second anti-puncturing layer is 5-40%.
Furthermore, the mass ratio of the first anti-puncturing layer in the first anti-puncturing layer to the second anti-puncturing layer is 15-40%.
Furthermore, the thickness of the anti-puncturing composite layer is 0.5-10 mm.
Further, the thickness of the sealing inner layer is 2-5 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a no umbrella military use type air-drop bucket of anti impaling, include by outer to interior anti impaling composite bed and the sealed inlayer that sets gradually, anti impaling the composite bed and including the first anti impaling layer in 2 at least layers and the anti impaling layer of 1 at least layer second, adjacent two-layer first anti impaling is provided with the anti impaling layer of 1 at least layer second between the layer, sealed inlayer meets with first anti impaling layer, and first anti impaling layer adopts low density polyethylene film or sheet metal, and sealed inlayer adopts the high density polyethylene layer. The utility model discloses in, anti impaling composite bed is multilayer composite construction, ultra high molecular weight polyethylene fiber has high specific modulus and high specific strength, aramid fiber is aromatic polyamide fiber, high strength has, high modulus, high temperature resistance, acid and alkali resistance, good performance such as light in weight, mix and compile into the anti impaling layer of second with at least one kind among high density polyethylene fiber and the ultra high molecular weight polyethylene fiber and the aramid fiber, can greatly improve the puncture resistance of product through using a small amount of ultra high molecular weight fiber and aramid fiber, not only reduced ultra high molecular weight polyethylene fiber and aramid fiber's quantity, the cost of control product that can be fine, and after mixing and compiling through adding high density polyethylene fiber, greatly improved the interface problem, the delaminating problem that leads to because of adding aramid fiber can not appear, greatly improve the intensity of air-drop bucket, fall resistance, toughness, puncture resistance etc., simultaneously, through setting up blow molding's sealed inlayer, the leakproofness of air-drop bucket has been improved, sealed inlayer adopts high density polyethylene, fine oil resistance and chemical stability have, and provide fine comprehensive stability, and can satisfy the lightweight in the special environment of light weight, the excellent application of air-drop can be satisfied simultaneously, certain special performance.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention is described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making more clear and definite definitions of the protection scope of the present invention.
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
As shown in fig. 1, the puncture-resistant umbrella-free military airdrop barrel comprises a sealing inner layer 1 and a puncture-resistant composite layer 2, wherein the sealing inner layer 1 and the puncture-resistant composite layer 2 are sequentially arranged from inside to outside, the mass ratio of the puncture-resistant composite layer 2 in the sealing inner layer 1 and the puncture-resistant composite layer 2 is 40-50%, the thickness of the puncture-resistant composite layer 2 is 0.5-10 mm, the puncture-resistant composite layer comprises at least 2 first puncture-resistant layers 21 and at least 1 second puncture-resistant layer 22, the mass ratio of the first puncture-resistant layers 21 in the first puncture-resistant layers 21 and the second puncture-resistant layers 22 is 5-40%, at least 1 second puncture-resistant layer 22 is arranged between every two adjacent first puncture-resistant layers 21, and the sealing inner layer 1 is connected with the innermost first puncture-resistant layer 21.
The inner sealing layer 1 is a high-density polyethylene layer, the high-density polyethylene is used for blow molding, the oil resistance, the chemical stability and the sealing performance are good, and the thickness of the inner sealing layer 1 is 2-5 mm.
The first puncture resistant layer 21 is made of a low density polyethylene film or sheet, and can be prepared by casting or hot pressing.
The second anti-piercing layer 22 is a three-dimensional net structure formed by weaving high-density polyethylene fibers and at least one of ultrahigh molecular weight polyethylene fibers or aramid fibers in a mixed mode, the specifications of the high-density polyethylene fibers, the ultrahigh molecular weight polyethylene fibers and the aramid fibers are 500-1500dtex respectively, and the high-density polyethylene fibers, the ultrahigh molecular weight polyethylene fibers and the aramid fibers are flat filaments or tows respectively and can be woven according to plain weave or twill weave. In order to improve the puncture resistance of the air-drop barrel, the second puncture resistant layer 22 can be formed by blending high-density polyethylene fibers and ultrahigh-molecular-weight polyethylene fibers, can also be formed by blending high-density polyethylene fibers and aramid fibers, and can also be formed by blending high-density polyethylene fibers, ultrahigh-molecular-weight polyethylene fibers and aramid fibers.
Preferably, the mass ratio of the first penetration resistance layer 21 in the first penetration resistance layer 21 and the second penetration resistance layer 22 is 15 to 40%.
The air-drop barrel is regular in appearance, has a space symmetrical structure, and can be a cuboid, a cube, a cylinder or other regular symmetrical body structures.
A method of making a puncture resistant umbrella-free military airdrop cask, comprising the steps of:
1) Cutting the first puncture-resistant layer 21 and the second puncture-resistant layer 22 according to the required size, selecting the number of the first puncture-resistant layer 21 and the second puncture-resistant layer 22, laying the layers according to the mode of ABA, ABBA, ABABA, ABBABBA, ABABABA, ABBABBABA or the like of a multilayer structure, wherein A represents the first puncture-resistant layer 21, B represents the second puncture-resistant layer 22, shaping the multilayer structure into a whole composite board by a hot pressing mode to obtain a prefabricated puncture-resistant composite layer 2, and the hot pressing temperature is 100-120 ℃, and the hot pressing time is 3-5 min.
2) And (3) customizing a mould according to a product by using a forming machine, heating and pressurizing the prefabricated anti-puncture composite layer 2, and pressing into a semi-finished product in the shape of the mould, wherein the temperature range is controlled to be 60-80 ℃, and the time is controlled to be 10-30 s.
3) Preparation of the finished product by means of a blow-moulding plant:
pre-fixing the semi-finished product obtained in the step 2) in a mould of blow molding equipment, then forming a sealing inner layer 1 in the semi-finished product through blow molding, and uniformly distributing high-density polyethylene in the semi-finished product through blow molding to prepare a complete air-drop barrel, wherein the blow molding temperature is 180-220 ℃.
Example 1
As shown in fig. 1, the puncture-resistant umbrella-free military airdrop barrel comprises a sealing inner layer 1 and a puncture-resistant composite layer 2, wherein the sealing inner layer 1 and the puncture-resistant composite layer 2 are sequentially arranged from inside to outside, the puncture-resistant composite layer comprises 3 first puncture- resistant layers 21 and 2 second puncture-resistant layers 22, 1 second puncture-resistant layer 22 is arranged between every two adjacent first puncture-resistant layers 21, and the sealing inner layer 1 is connected with the innermost first puncture-resistant layer 21.
The first puncture resistant layer 21 is a low density polyethylene sheet with a thickness of 0.8mm.
The second anti-puncture layer 22 is a three-dimensional net structure formed by weaving continuous flat-thread-shaped high-density polyethylene fibers and ultrahigh molecular weight polyethylene fibers in a mixed manner, the texture of the three-dimensional net structure is plain weave, and the thickness of the three-dimensional net structure is 1mm.
A method of making a puncture resistant umbrella-free military airdrop cask, comprising the steps of:
1) Cutting the first puncture-resistant layer 21 and the second puncture-resistant layer 22 according to the required size, layering in an ABABA mode, shaping the multilayer structure into a whole composite board in a hot pressing mode to obtain a prefabricated puncture-resistant composite layer 2, keeping the hot pressing temperature at 115 ℃ for 4min, cooling at 40 ℃ for 3min under the pressure, and manufacturing the prefabricated puncture-resistant composite layer 2 with the size of 650 x 550mm.
2) And (3) customizing a mould according to a product by using a forming machine, heating and pressurizing the prefabricated puncture-resistant composite layer 2, pressing the product into a semi-finished product in the shape of the mould, controlling the temperature range at 70 ℃ and the time at 20s, demoulding, taking out the product, cutting, removing leftover materials, and preparing the semi-finished product with the size of 460X 370X 85 mm.
3) Preparation of the finished product by means of a blow-moulding plant:
symmetrically fixing the two 460 × 370 × 85mm semi-finished products obtained in the step 2) in a mold of blow molding equipment, closing the mold, then performing blow molding to uniformly distribute high-density polyethylene in the semi-finished products, wherein the blow molding temperature is 200 ℃, and removing leftover materials after mold opening to prepare a complete air-drop barrel.
Example 2
As shown in fig. 1, the puncture-resistant umbrella-free military airdrop barrel comprises a sealing inner layer 1 and a puncture-resistant composite layer 2, wherein the sealing inner layer 1 and the puncture-resistant composite layer 2 are sequentially arranged from inside to outside, the puncture-resistant composite layer comprises 3 first puncture-resistant layers 21 and 4 second puncture- resistant layers 22, 2 second puncture-resistant layers 22 are arranged between every two adjacent first puncture-resistant layers 21, and the sealing inner layer 1 is connected with the innermost first puncture-resistant layer 21.
A method of making a puncture resistant umbrella-free military airdrop cask, comprising the steps of:
1) Cutting the first puncture-resistant layer 21 and the second puncture-resistant layer 22 according to the required size, laying layers according to an ABBABBA mode, shaping the multilayer structure into a whole composite board in a hot pressing mode to obtain a prefabricated puncture-resistant composite layer 2, keeping the hot pressing temperature at 115 ℃, keeping the hot pressing time at 4min, cooling at 40 ℃, and cooling for 3min to obtain the prefabricated puncture-resistant composite layer 2 with the size of 650 x 550mm.
2) And (3) customizing a mould according to a product by using a forming machine, heating and pressurizing the prefabricated anti-puncture composite layer 2, pressing the product into a semi-finished product in the shape of the mould, controlling the temperature range at 70 ℃ and the time at 20s, demoulding, taking out the product, cutting, and removing leftover materials to obtain the semi-finished product with the size of 460X 370X 85 mm.
3) Preparation of the finished product by means of a blow-moulding plant:
symmetrically fixing the two 460 × 370 × 85mm semi-finished products obtained in the step 2) in a mold of blow molding equipment, closing the mold, then performing blow molding to uniformly distribute high-density polyethylene in the semi-finished products, wherein the blow molding temperature is 200 ℃, and removing leftover materials after mold opening to prepare a complete air-drop barrel.
The same as in example 1.
Example 3
The present example is different from example 1 in that the second puncture resistant layer 22 of the present example is a three-dimensional net structure formed by mixing and weaving high-density polyethylene fibers and aramid fibers in a continuous strand shape, and has a twill-like texture and a thickness of 1mm.
A method of making a puncture resistant umbrella-free military airdrop cask, comprising the steps of:
1) Cutting the first puncture-resistant layer 21 and the second puncture-resistant layer 22 according to the required size, laying layers according to an ABABABA mode, shaping the multilayer structure into a whole composite board in a hot pressing mode to obtain a prefabricated puncture-resistant composite layer 2, keeping the hot pressing temperature at 120 ℃, carrying out hot pressing for 4min, then carrying out pressure maintaining cooling, carrying out cooling temperature at 40 ℃, and carrying out cooling for 3min to obtain the prefabricated puncture-resistant composite layer 2 with the size of 650 multiplied by 550mm.
2) And (3) customizing a mould according to a product by using a forming machine, heating and pressurizing the prefabricated anti-puncture composite layer 2, pressing the product into a semi-finished product in the shape of the mould, controlling the temperature range at 75 ℃ and the time at 25s, demoulding, taking out the product, cutting, and removing leftover materials to obtain the semi-finished product with the size of 460X 370X 85 mm.
3) Preparation of the finished product by means of a blow-moulding apparatus:
symmetrically fixing the two 460 × 370 × 85mm semi-finished products obtained in the step 2) in a mold of blow molding equipment, closing the mold, then performing blow molding to uniformly distribute high-density polyethylene in the semi-finished products, wherein the blow molding temperature is 200 ℃, and removing leftover materials after mold opening to prepare a complete air-drop barrel.
The same as in example 1.
Example 4
The present example is different from example 1 in that the second puncture resistant layer 22 of the present example is a three-dimensional net structure formed by weaving a mixture of continuous tow-like high-density polyethylene fibers, ultra-high molecular weight polyethylene fibers, and aramid fibers, and has a twill-like texture and a thickness of 1mm.
A preparation method of a puncture-resistant umbrella-free military aerial delivery barrel comprises the following steps:
1) Cutting the first puncture-resistant layer 21 and the second puncture-resistant layer 22 according to the required size, layering in an ABABA mode, shaping the multilayer structure into a whole composite board in a hot pressing mode to obtain a prefabricated puncture-resistant composite layer 2, keeping the hot pressing temperature at 120 ℃ for 4min, cooling at 40 ℃ for 3min under the pressure, and manufacturing the prefabricated puncture-resistant composite layer 2 with the size of 650 x 550mm.
2) And (3) customizing a mould according to a product by using a forming machine, heating and pressurizing the prefabricated puncture-resistant composite layer 2, pressing the prefabricated puncture-resistant composite layer into a semi-finished product in the shape of the mould, controlling the temperature range at 75 ℃ and the time at 25s, demoulding, taking out the product, cutting, removing leftover materials, and preparing the 460X 370X 85mm semi-finished product.
3) Preparation of the finished product by means of a blow-moulding apparatus:
symmetrically fixing the two 460X 370X 85mm semi-finished products obtained in the step 2) in a mould of blow molding equipment, closing the mould, then uniformly distributing high-density polyethylene in the semi-finished products through blow molding at the blow molding temperature of 200 ℃, removing leftover materials after mould opening, and preparing a complete air-drop barrel.
The same as in example 1.
Comparative example 1
The present comparative example is different from example 1 in that the second penetration resistant layer 22 of the present comparative example uses a woven cloth of high-density polyethylene fibers woven from high-density polyethylene fibers.
Comparative example 2
This comparative example differs from example 1 in that it has no puncture-resistant composite layer 2 and is provided only with the sealing inner layer 1.
The test mode is as follows:
free fall test: the products obtained in examples 1, 3 and 4 and comparative examples 1 and 2 were subjected to a 30 m free fall test, the ground was tested by placing sharp stones, and the integrity of each product after free fall was observed, the test results being shown in table 1.
TABLE 1
The utility model discloses not the part or the structure of concrete description adopt prior art or current product can, do not do here and describe repeatedly.
The above-mentioned only be the embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all utilize the equivalent structure or the equivalent flow transform of what the specification content was done, or directly or indirectly use in other relevant technical field, all the same reason is included in the patent protection scope of the utility model.
Claims (8)
1. The utility model provides an anti umbrella military-type air-drop barrel that punctures, its characterized in that includes puncture-resistant composite bed and the sealed inlayer that sets gradually from outer to interior, puncture-resistant composite bed includes 2 at least first puncture-resistant layers and 1 at least second puncture-resistant layers, is provided with 1 at least second puncture-resistant layers between the adjacent two-layer first puncture-resistant layer, and sealed inlayer meets with first puncture-resistant layer, and first puncture-resistant layer adopts low density polyethylene film or sheet metal, and sealed inlayer adopts the high density polyethylene layer.
2. The puncture-resistant parachute-free military-type aerial delivery cask of claim 1, wherein the second puncture-resistant layer is a three-dimensional mesh structure woven from high-density polyethylene fibers and at least one of ultra-high molecular weight polyethylene fibers or aramid fibers.
3. The puncture-resistant umbrella-free military aerial delivery cask of claim 2, wherein the high density polyethylene fibers, ultra-high molecular weight polyethylene fibers, and aramid fibers are each 500-1500 dtex.
4. A puncture resistant umbrella-free military-type aerial delivery pail according to claim 1, wherein the puncture resistant composite layer comprises 40-50% by weight of the puncture resistant composite layer and the sealing inner layer.
5. A puncture resistant parachute-free military-type aerial delivery cask according to claim 1, wherein the first puncture resistant layer is 5-40% by mass of the first puncture resistant layer and the second puncture resistant layer.
6. The puncture-resistant parachute-free military-type aerial delivery cask of claim 5, wherein the first puncture-resistant layer is 15-40% by mass of the first puncture-resistant layer and the second puncture-resistant layer.
7. A puncture resistant umbrelless military-type aerial delivery bucket according to claim 1, wherein said puncture resistant composite layer has a thickness of 0.5-10 mm.
8. A puncture resistant umbrelless military-type aerial delivery pail according to claim 1, wherein the thickness of the sealing inner layer is 2-5 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222376544.0U CN217946189U (en) | 2022-09-07 | 2022-09-07 | Puncture-resistant umbrella-free military air-drop barrel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222376544.0U CN217946189U (en) | 2022-09-07 | 2022-09-07 | Puncture-resistant umbrella-free military air-drop barrel |
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| CN217946189U true CN217946189U (en) | 2022-12-02 |
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| CN202222376544.0U Active CN217946189U (en) | 2022-09-07 | 2022-09-07 | Puncture-resistant umbrella-free military air-drop barrel |
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- 2022-09-07 CN CN202222376544.0U patent/CN217946189U/en active Active
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