CN218104979U - Armor - Google Patents

Abstract

The utility model relates to a armour, it includes first body, forms on first body and form the composite elastomer of elasticity protection, and composite elastomer includes lattice structure elastomer and elasticity resin layer, and the elasticity resin layer forms at least in the inside hole of lattice structure elastomer and with combine between the lattice structure elastomer. The utility model discloses in permeating the inside hole of lattice structure elastomer with the elastic resin and making the two closely combine to be used for the elasticity protection of armour in order to form composite elastomer, not only satisfy light in weight, small characteristics, but also strengthen composite elastomer's compressive resistance by a wide margin, simultaneously, can not influence the flexibility ratio after the user wears yet, in addition, lattice structure can further optimize overall modeling, and the reinforcing user feels.

Description

Armor

Technical Field

The utility model belongs to articles for daily use field, concretely relates to armour.

Background

In many situations where cushioning and support are required, such as taekwondo sport protection scenarios, it is desirable to use elastomeric materials that are high strength, high elasticity (resistance to compression), high impact resistance, and light weight.

At present, thermoplastic powder is used as a raw material, and the elastomer formed by 3D printing is applied to various occasions due to the advantages of simple forming process, environmental protection, high raw material utilization rate, recoverability, high precision and the like.

However, in actual use, mechanical properties are caused by factors such as melt shrinkage, weak bonding between powder particles, and many voids, and if it is necessary to enhance the compression resistance of the elastomer, the main means is to increase the thickness of the elastomer, which significantly limits the flexibility of the user in the case of relative movement, resulting in poor physical sensation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the prior art is not enough to be overcome, and a modified armour is provided.

In order to solve the technical problem, the utility model discloses take following technical scheme:

an armor comprises an armor body, a composite elastomer formed on the armor body and forming elastic protection, wherein the composite elastomer comprises a lattice structure elastomer and an elastic resin layer, and the elastic resin layer is at least formed in the internal pores of the lattice structure elastomer and is combined with the lattice structure elastomer.

Preferably, the elastic resin layer is also formed on the outer surface of the lattice structure elastomer.

Preferably, the lattice structure elastomer is a thermoplastic elastomer.

According to a preferred aspect of the present invention, the elastic resin constituting the elastic resin layer has a hardness of 50 shore a or more and 40 shore D or less, a viscosity of less than 12000cP at 25 ℃, a tensile strength of 5MPa or more, and an elongation at break of 120% or more.

The applicant finds that the elastic body with the lattice structure is fully contacted with a treatment liquid containing elastic resin or raw materials for forming the elastic resin and a resin curing agent, and is heated and cured, the elastic resin can form an elastic resin layer in the internal pores of the elastic body with the lattice structure and on the outer surface of the elastic body with the lattice structure, and the elastic resin is cured, bonded and compounded with the elastic body with the lattice structure, so that the internal pores of the elastic body with the lattice structure are filled, and further the composite elastic body with excellent mechanical property can be obtained. The composite elastomer has higher compression resistance under the same weight; the material has a lower weight, while achieving the same compression properties. In addition, the elastic resin layer positioned on the outer surface of the lattice structure elastic body can reduce the surface roughness of the material, so that the surface of the composite elastic body is smooth.

Preferably, the mass of the elastic resin layer is 10% to 60% of the mass of the lattice structure elastomer. Specifically, 20% to 30% is sufficient, and at this time, the weight is optimally reduced on the premise of ensuring sufficient elastic buffer capacity.

Preferably, the composite elastomer has a density of 0.7 to 1.1g/cm3, while the pressure required to be compressed to a deformation of 50% is greater than 200N. Therefore, the composite elastomer of the present application can realize lightness and is excellent in compression resistance.

The porosity of the lattice structure elastomer is 5-35%.

The lattice structure elastomer is prepared by 3D printing. By adjusting parameters such as 3D printing temperature and laser energy, the sintering density and porosity of the lattice structure elastomer can be controlled, and further the penetration depth and quality of the elastic resin can be controlled. The lower the temperature and the laser power, the higher the porosity of the printed elastomer with the lattice structure, the higher the content of the elastic resin in the composite elastomer, and the better the compression resistance of the composite elastomer.

In some embodiments, the parameters used are as follows: the temperature is 80-140 deg.C, the laser power is 30-100W, the scanning speed is 4000-15000mm/s, and the scanning interval is 0.1-0.3mm.

According to the present invention, the lattice cell structure constituting the lattice structure elastomer is not particularly limited. The lattice cell structure may be a common cube, star, octagon, hexagon, rhombus, tetrahedron, etc.

In some embodiments, the lattice cell structure of the lattice structure elastomer is a rhombohedral.

In some embodiments of the present invention, the nail body comprises a chest piece and a back piece, and the composite elastic body is disposed on the chest and/or back.

Preferably, the composite elastic body has a plurality of pieces and is formed on the chest and/or back in a split manner. Adopt split type design, not only whole handsome in appearance, can carry out effective overall arrangement according to the load size at different positions of needs moreover, also provide the required space of elastic deformation simultaneously, have stronger practicality.

Specifically, the two front chest pieces are arranged in bilateral symmetry, wherein the composite elastic body on each front chest piece at least forms elastic protection for the chest area, the rib area and the abdomen area corresponding to the front chest piece.

The composite elastic body on the back at least forms elastic protection for the cervical vertebra area, the thoracic vertebra area and the lumbar vertebra area corresponding to the back.

In some embodiments, the composite elastic body is further disposed on the side waist portion and/or the shoulder neck portion formed by the joining of the front breast piece and the back piece. Thus, the formed protection is relatively omnibearing, and the best protection effect is achieved.

The composite elastomer is formed by coating the elastomer with the lattice structure by using a treatment solution containing elastic resin or raw materials thereof and a curing agent.

The coating treatment adopts a method of spraying, dip coating or electroplating, and during the coating treatment, the treatment liquid is infiltrated into the internal pores of the lattice structure elastomer.

In some embodiments, the time for the coating treatment is 5 to 20min and the time for the heating treatment is 3 to 12h.

Further, the mass concentration of the elastic resin in the treatment liquid is 30-60%, and the mass concentration of the curing agent is 1-10%. In some embodiments, the mass concentration of the elastomeric resin in the treatment fluid is 40-55% and the mass concentration of the curing agent is 2-5%.

In some embodiments, the heat curing is performed at a temperature of 80 to 100 ℃, and the coating treatment and the heat curing are performed once or repeated 1 to 3 times after one time.

Because of the implementation of above technical scheme, the utility model discloses compare with prior art and have following advantage:

the utility model discloses in the inside hole with elastic resin infiltration lattice structure elastomer and make the two closely combine to be used for the elasticity protection of armour with forming composite elastomer, not only satisfy light in weight, small characteristics, but also strengthen composite elastomer's compressive resistance performance by a wide margin, simultaneously, can not influence the flexibility ratio after the user wears yet, in addition, lattice structure can further optimize whole molding, and the reinforcing user body is felt.

Drawings

Fig. 1 is a schematic perspective view of the armor of the present invention;

fig. 2 is a schematic front view of the armor of the present invention;

figure 3 is a rear view of the armor of the present invention

Fig. 4 is a left side view of the armor of the present invention;

wherein: 1. a nail body; 10. a chest piece; 11. a back sheet; 12. a side waist portion; 13. a shoulder and neck portion;

2. and (3) compounding an elastomer.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Example 1

As shown in fig. 1, the armor of the present embodiment includes an armor body 1, and a composite elastic body 2 formed on the armor body 1 and forming an elastic protection.

Specifically, first body 1 includes from preceding chest piece 10, the back piece 11 that shoulder and waist docked mutually, just forms collarband and cuff after two preceding chest pieces 10 and the back piece 11 are connected about.

In this example, the nail body 1 is made of breathable fabric, and the composite elastic body 2 is sewed on the nail body through edge wrapping

As shown in fig. 2 and 3, the composite elastic body 2 is respectively located at the front chest piece 10, the back piece 11, and the connecting part where the front chest piece 10 and the back piece 11 are oppositely connected.

Specifically, the left and right anterior chest pieces 10 are symmetrically arranged.

Three composite elastic bodies 2 are formed on the front chest piece 10, wherein the three composite elastic bodies 2 respectively correspond to the chest area, the rib area and the abdomen area of the front chest piece 10, and the three composite elastic bodies 2 are sequentially arranged at intervals from top to bottom.

Three composite elastic bodies 2 are also formed on the back piece 11, wherein the three composite elastic bodies 2 respectively correspond to a cervical vertebra region, a thoracic vertebra region and a lumbar vertebra region of the back piece 11, and the three composite elastic bodies 2 are sequentially arranged at intervals from top to bottom.

Specifically, the composite elastic body 2 of the thoracic vertebra region corresponding to the back sheet 11 is wrapped and extended from the thoracic vertebra to two sides, the wrapping and extending modes of the composite elastic body 2 of the lumbar vertebra region and the thoracic vertebra region are the same, but the extending length of the composite elastic body 2 corresponding to the lumbar vertebra region is smaller than that of the composite elastic body 2 corresponding to the thoracic vertebra region (the reason is that the optimal elastic protection needs to be formed on the rib).

As shown in fig. 4, the connecting portions (formed by the front chest sheet 10 and the back sheet 11 being connected to each other) are a side waist portion 12 and a shoulder neck portion 13, respectively, and the composite elastic body 2 is provided on the side waist portion 12 and the shoulder neck portion 13, respectively. Thus, the elastic protection can be formed in all directions of the armor.

Meanwhile, in this example, the composite elastic body 2 includes an elastic body having a lattice structure and an elastic resin layer, and taking any one of the composite elastic bodies 2 on the nail body 1 as an example, the molding process includes the following steps:

1) Thermoplastic Polyurethane (TPU) is used as a raw material, and the thermoplastic polyurethane is subjected to powder sintering molding to form 3D printing to obtain the elastomer with the lattice cell structure which is hexagonal, wherein the process parameters are that the main temperature is 100-120 ℃, the laser power is 50W, the scanning speed is 4000-10000mm/s, and the scanning interval is 0.2mm.

2) 94 parts by mass of a commercially available polyurethane resin solution with a mass concentration of 45% and 6 parts by mass of an isocyanate curing agent are uniformly mixed and dispersed by a high-speed stirrer to obtain an impregnation treatment liquid, wherein the polyurethane resin has a hardness of 55A, a viscosity of 5000cP at 25 ℃, a tensile strength of 6MPa and an elongation at break of 220%.

3) Soaking the printed lattice structure elastomer in the dipping treatment liquid prepared in the step 2) for 10min, taking out the elastomer, drying the elastomer by spinning, and then putting the elastomer into a vacuum oven at 80 ℃ for curing for 3h to obtain a composite material sample.

The sintered density and porosity of the lattice structure elastomer obtained at different scanning rates, and the weight and compression set of the lattice structure elastomer before and after the treatment of the polyurethane resin at 50% are shown in table 1 below:

TABLE 1

As can be seen from table 1 above, by controlling the process parameters of 3D printing, the sintering density and porosity of the lattice-structured elastomer can be adjusted, and the larger the porosity is, the more the content of the polyurethane resin in the composite elastomer is, and the more the compression resistance of the composite elastomer is improved.

Example 2

The armor of the present example has the same structure as example 1, except for the formation process of the composite elastic body 2.

Specifically, the molding process of the composite elastic body 2 includes the steps of:

1) Thermoplastic Polyurethane (TPU) is used as a raw material, and the thermoplastic polyurethane is sintered and molded by powder to form 3D to print the elastomer with the lattice cell structure which is hexagonal, the process parameters are that the main temperature is 100-120 ℃, the laser power is 55W, the scanning speed is 4000-10000mm/s, and the scanning interval is 0.2mm;

2) 98 parts by mass of a commercially available acrylic resin solution with a mass concentration of about 55% and 2 parts by mass of a curing agent 4,4' -methylenebis (2-methylcyclohexylamine) are uniformly mixed and dispersed by a high-speed stirrer to obtain an impregnation treatment liquid, wherein the acrylic resin has the hardness of 68A, the viscosity of 6000cP at 25 ℃, the tensile strength of 12MPa and the elongation at break of 200%;

3) Soaking the printed TPU lattice structure elastomer in the dipping treatment liquid for 10min, taking out the TPU lattice structure elastomer, drying the TPU lattice structure elastomer by drying, and then putting the TPU lattice structure elastomer into a vacuum oven at 80 ℃ for curing for 5h to obtain a composite elastomer sample;

4) And (3) putting the cured sample into the dipping treatment liquid again, soaking for 10min, drying, curing and repeating for 1 time. That is, the composite elastic body 2 was formed such that three elastic resin layers were formed on the surface of the elastic body having a lattice structure, and the weight of the composite elastic body 2 was increased from 21.53g to 31.62g before treatment, and the compression force at 50% compression set of the material was increased from 230.2N to 584.1N before treatment. The density of the prepared composite elastomer is 0.993g/cm3.

Therefore, the utility model discloses there is following advantage:

1. this application makes in the elastic resin infiltrates the inside hole of lattice structure elastomer and makes the two combine closely through compound lattice structure elastomer and elastic resin coating, unexpectedly, under the prerequisite that does not influence lattice structure elastomer advantage performance, is showing the resistance to compression performance that has improved the material, and the volume of material is unchangeable simultaneously, and weight has only slight increase. Compared with the lattice structure elastomer without the composite elastic resin coating, the composite elastomer has the advantages that the volume is obviously smaller and the weight is obviously lighter when the same compression resistance is achieved; the compression resistance of the composite elastomers of the present application is significantly higher at the same weight.

2. The preparation process of the composite elastomer adopts 3D printing to prepare the lattice structure elastomer, and adopts coating treatment and curing process, on one hand, through adjusting parameters such as 3D printing temperature and laser power, the sintering density and porosity of the lattice structure elastomer can be controlled, further the penetration depth and quality of elastic resin are controlled, and finally the degree of improving the compression performance of the composite elastomer is controlled, so that the composite elastomers with various performances can be flexibly prepared, and the individualized requirements under various application scenes are met. On the other hand, by adopting the coating treatment and curing process, the combination between the lattice structure elastomer and the elastic resin coating is more sufficient and compact, which is beneficial to improving the strength and the service life of the composite elastomer.

3. Aiming at the requirement of the position of the force borne by the armor, the composite elastomer with different elastic properties is selected, and finally, the elastic protection is formed on the important position of the human body in all directions in the front, back, up, down, left and right directions, so that the characteristics of light weight and small volume are met, the compression resistance of the composite elastomer is greatly enhanced, meanwhile, the flexibility of the user after wearing the composite elastomer is not influenced, and in addition, the whole shape can be further optimized by the lattice structure, and the body feeling of the user is enhanced.

The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.

Claims (12)

1. An armour, comprising an armour body, characterized in that: the armor also comprises a composite elastomer which is formed on the armor body and forms elastic protection, the composite elastomer comprises a lattice structure elastomer and an elastic resin layer, and the elastic resin layer is at least formed in the internal pores of the lattice structure elastomer and is combined with the lattice structure elastomer.

2. An item of armour as claimed in claim 1, wherein: the elastic resin layer is also formed on the outer surface of the lattice structure elastomer.

3. An item of armour as claimed in claim 1, wherein: the lattice structure elastomer is a thermoplastic elastomer; and/or the hardness of the elastic resin forming the elastic resin layer is more than 50A Shore hardness and less than 40D Shore hardness, the viscosity at 25 ℃ is less than 12000cP, the tensile strength is more than 5MPa, and the elongation at break is more than 120%.

4. An item of armour as claimed in claim 1, wherein: the mass of the elastic resin layer is 10-60% of that of the lattice structure elastomer.

5. The armour of claim 1, further comprising: the composite elastomer has a density of 0.7-1.1g/cm3 and requires a pressure of more than 200N when compressed to a deformation of 50%.

6. An item of armour as claimed in claim 1, wherein: the porosity of the lattice structure elastomer is 5-35%; and/or the lattice structure elastomer is prepared by 3D printing.

7. An item of armour as claimed in claim 1, wherein: the lattice cell structure of the lattice structure elastomer is one or more of cube, star, octagon, hexagon, rhombus and tetrahedron.

8. Armour according to any of claims 1 to 7 in which: the nail body comprises a front chest piece and a back piece, and the composite elastic body is arranged on the front chest and/or the back.

9. An armour according to claim 8 in which: the composite elastic body is provided with a plurality of blocks and is formed on the chest and/or the back in a split mode.

10. An item of armour as claimed in claim 9, wherein: the two front chest pieces are arranged in a bilateral symmetry mode, wherein the composite elastic body on each front chest piece at least forms elastic protection for the chest area, the rib area and the abdomen area corresponding to the front chest piece.

11. An item of armour as claimed in claim 9, wherein: the composite elastic body on the back at least elastically protects a cervical vertebra region, a thoracic vertebra region and a lumbar vertebra region corresponding to the back.

12. An armour according to claim 8 in which: the composite elastic body is also arranged at a side waist part and/or a shoulder neck part formed by connecting the front chest piece and the back piece.

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