CN118024687A - Flexible sports protective armor, protective tool and forming method thereof - Google Patents

Abstract

The present invention relates to a flexible sports protective armor, protective gear and a molding method thereof. The protective armor is used to form an integral armor piece adapted to a human body part. The armor piece is embedded in clothing to obtain a protective gear with a full protective structure, thereby realizing all-round protection of the human body. The core protective layer in the armor piece is formed by thermal bonding of a force-relieving and shock-absorbing layer, a flexible composite layer and a buffer layer. The flexible composite layer is formed by hot pressing of a fiber fabric layer and a resin layer provided as an interval layer. The pores in the fiber fabric layers are infiltrated by the resin of the resin layer to form a coexistence of fiber and resin. When the protective gear is hit, the force is buffered by the fiber fabric layer and diffused in a normal direction to achieve a force-relieving effect. Combined with the joint protection of the force-relieving and shock-absorbing layer and the buffer layer, the diffusion of the force can be clearly felt when hit. In addition, the armor of the present invention is lightweight as a sports protective gear and comfortable to wear. It is particularly suitable for sports armor for martial arts weapons strikes, especially for protection in high-frequency and long-acting strike sports.

Description

A flexible sports protective armor, protective gear and molding method thereof

Technical Field

The invention relates to the technical field of sports protective clothing, in particular to a flexible sports protective armor, protective gear and a molding method thereof.

Background technique

Protective gear refers to a tool used to protect the human body from injury during striking sports. Existing protective gear usually uses nylon or cold-rolled steel bars as the main protective material.

Due to the inherent rigidity of nylon or steel plate materials, that is, under normal circumstances the material will not and is not prone to obvious deformation and bending, if the protective gear is made into a whole armor, although it can provide all-round protection, the mobility or flexibility is very poor. For example, if the breastplate is made as a whole, there will be obvious resistance when a person bends down and squats; the medieval knight plate armor focused on protection rather than mobility. Although the horse increased flexibility, the whole plate armor had basically no mobility.

In the prior art, in order to strike a balance between protection and mobility, protective gear is usually made into a spliced armor structure. For example, ancient infantrymen mostly wore lamellar and scale armor, which were composed of countless tiny pieces of armor. Spliced armor protective gear requires splicing each piece of armor one by one according to the preset, and the production process is complicated. On the other hand, although it uses fragmented armor, the overall weight of the protective gear is still heavy, usually reaching 10-25 kilograms. Moreover, the spliced armor structure sacrifices the all-round protection of the whole armor and exchanges partial protection for the wearer's partial flexibility.

In addition, existing nylon injection molded protective gear will crack, break, and fall apart when hit beyond its bearing capacity. The broken fragments during exercise can easily cause secondary injuries to people, and the safety of use is low. Moreover, nylon protective gear is a low-frequency protective gear, and it loses its protective effect after being damaged by force, and cannot provide high-frequency and long-term protection for sports.

There is also a kind of soft foam sports protective gear on the current market. Although it is cheap, this type of protective gear only relies on soft thick foam for sports protection, and has poor impact resistance and blow resistance. The protective effect is average, and it plays more of a buffering role. After wearing it, the body appears bloated, and the mobility is average, so it can only be used in simple sports scenes.

Summary of the invention

In order to solve the above problems, the present invention provides a flexible sports protective armor, protective gear and a molding method thereof with a reasonable structure, so as to achieve all-round protection for the human body. The protective gear is light in weight and comfortable to wear. It is especially suitable for sports armor for striking with martial arts weapons, which greatly ensures the overall protection and flexibility of the wearer.

The technical solution adopted by the present invention is as follows:

A flexible sports protective armor comprises a flexible composite layer, wherein the flexible composite layer comprises multiple layers of resin layers, fiber fabric layers are arranged between the resin layers, the multiple resin layers and the fiber fabric layers are hot-pressed to form the flexible composite layer, the pores within the fiber fabric layer are infiltrated by the resin of the resin layer to form a coexistence of fiber and resin; a force-relieving and shock-absorbing layer is laid on one side of the flexible composite layer, and a buffer layer is laid on the other side of the flexible composite layer; hot-melt adhesive powder is hot-sprayed on the interface surface where the force-relieving and shock-absorbing layer, the flexible composite layer and the buffer layer are connected, the hot-melt adhesive powder is evenly covered on the interface, and thermal vacuum bonding is performed to promote interface bonding, so that the protective layer of the overall structure is formed by thermal bonding of the interface.

As a further improvement of the above technical solution:

The flexible composite layer is regularly provided with a plurality of penetrating small holes, the diameter of the small holes is 1-2 mm, and the hole spacing between the small holes is 3-5 cm.

The flexible composite layer includes three resin layers, and two fiber fabric layers are arranged between adjacent resin layers; the fiber content of the flexible composite layer is 50-80%, the density is 0.9-1.0 g/cm ³ , and the thickness of the flexible composite layer is 0.5-5 mm.

The fiber fabric layer is one or more of polyester, polypropylene, nylon, acrylic, chloroprene, vinylon, and spandex, and the weaving texture of the fiber fabric layer is one or more of plain weave, twill, and satin; the resin layer is made of thermoplastic resin material, which is one or more of PP, PE, POE, TPE, and PVC.

The force-release and shock-absorbing layer is a flexible elastic layer made by blending PE/EVA using supercritical _CO2 micro-foaming technology, with a thickness of 1-4 mm; the buffer layer is a sponge made by blending natural latex and PU materials and foaming at an ultra-high rate at high temperature, which is shaped after radiation cross-linking, has dense pores and large pore diameters, and has open pores on the surface, with a thickness of 1-3 mm.

The outer layer and the breathable layer are respectively attached to both sides of the protective layer, the buffer layer in the protective layer is close to the breathable layer, and the force-dissipating and shock-absorbing layer is close to the outer layer; the edges of the breathable layer and the outer layer are both protruding from the protective layer to form a space for sewing needles.

The outer layer includes a nylon cloth layer woven by warp and weft of nylon bundles, and the surface of the nylon bundles is coated with a wear-resistant Teflon coating; the thickness of the nylon cloth layer is 0.2-0.5mm, and high-quality leather is arranged on the inner side of the nylon cloth layer as a supporting layer, and the thickness of the supporting layer is 0.2-0.5mm; the breathable layer is a mesh cloth formed by blending and weaving cotton and linen fibers and polyester fibers, and the mesh cloth has a three-layer mesh structure and can be 0.5-1mm thick.

A flexible sports protective gear, comprising independent and complete armor pieces that match the shapes of the human chest, back, hands and legs respectively, each of which is made of any of the protective armors described above, and each of which is independently embedded in a garment with its edges hidden, forming a protective gear with an overall embedded full-protection structure.

As a further improvement of the above technical solution:

The armor coverage rate of the front chest is more than 90%, the armor coverage rate of the back is more than 93%, and the armor coverage rate of the hands and legs is more than 85%.

A method for forming a flexible sports protective gear comprises the following steps:

The fiber bundle is obtained by extrusion spinning, and the fiber bundle is woven into a fiber fabric layer according to specifications, and the fiber fabric layer and the resin layer are stacked alternately, and a flexible composite layer is obtained by hot pressing and laminating;

A plurality of penetrating small holes are regularly opened on the flexible composite layer;

The flexible composite layer is placed in a mold, and is thermoformed to form a curved surface that matches the chest, back, hands, and legs of the human body, and then cut after shaping;

Each of the cut flexible composite layers is respectively bonded to the force-dissipating and shock-absorbing layer and the buffer layer on both sides through interface thermal bonding to obtain a protective layer;

The outer layer and the breathable layer of the cutting edge are larger than the protective layer, the protective layer is built between the outer layer and the breathable layer, and the edges of the outer layer and the breathable layer that are in contact with each other are sewn to obtain armor pieces that match the chest, back, hands, and legs of the human body;

The edges of each armor plate are hidden and embedded in the corresponding position of the clothing to obtain a protective gear with an overall embedded full protection structure.

Compared with the prior art, the present invention has the following beneficial effects:

The invention has a compact and reasonable structure and is easy to use. The resin layer and the fiber fabric layer provided as the interval layer are hot pressed to form a flexible composite layer. The force-relieving and shock-absorbing layer, the flexible composite layer and the buffer layer are thermally bonded at the interface to form an integrated protective layer of the armor. When the protective gear is hit, the force is buffered by the fiber fabric layer and diffused in the normal direction to achieve the force-relieving effect. Combined with the joint protection of the force-relieving and shock-absorbing layer and the buffer layer, the force diffusion can be clearly felt when being hit. Although the sound of the hit is very loud, the pain is very weak. The protective armor constitutes an integral armor piece adapted to the human body part. The armor piece is embedded in the clothing to obtain a protective gear with a full protective structure, thereby realizing all-round protection of the human body. Moreover, the armor is light in weight as a sports protective gear and comfortable to wear. It is particularly suitable for sports armor for martial arts weapons strikes, especially for protection in high-frequency and long-acting strike sports, which greatly guarantees the overall protection and flexibility of the wearer.

The present invention also includes the following advantages:

The protective layer inside the protective gear is a combination of flexible fiber braid and resin, which makes the protective gear extremely impact-resistant and effectively guarantees the protective properties. Combined with the characteristics of the integral embedded armor of the protective gear, it effectively guarantees all-round protection for the wearer's body.

The protective armor of the present invention is 0.7-0.8 times heavier than conventional nylon armor and 0.3-0.5 times heavier than conventional cold-rolled steel plate armor. Due to its lightness, it greatly improves the comfort after wearing. Combined with the flexible characteristics of the armor material, it can be easily bent so that the movement is not affected, effectively ensuring the wearer's flexibility.

Punching holes on the flexible composite layer of the protective layer improves breathability. Combined with the sweat absorption and breathability of the buffer layer, it can effectively discharge sweat from the body surface, cool the human body, and greatly improve sports comfort.

In the protective layer of the core of the protective gear, the flexible composite layer is made of fiber fabric layer and resin layer by hot pressing and impregnation, forming a unique fiber woven fabric structure. When hit, it will not break or fall off. The protective gear is embedded, so there will be no secondary injury to personnel.

The protective gear of the present invention does not involve harmful substances such as glue, acrylic double-sided adhesive, radioactive elements and chemicals with irritating odors during the molding process, and is non-toxic and harmless to the human body, green and healthy.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram showing the structure of the armor of the present invention.

FIG. 2 is a schematic diagram showing the structure of the flexible composite layer of the present invention.

FIG. 3 is a schematic diagram showing the structure of the edge of the armor plate of the present invention.

FIG. 4 is a schematic structural diagram of the protective gear of the present invention.

Among them: 1. outer layer; 2. protective layer; 3. breathable layer; 10. armor plate; 21. force-dissipating and shock-absorbing layer; 22. flexible composite layer; 23. buffer layer; 220. small holes; 221. fiber fabric layer; 222. resin layer.

Detailed ways

The specific implementation of the present invention is described below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, a flexible sports protective armor of the present embodiment includes a flexible composite layer 22, and the flexible composite layer 22 includes multiple layers of resin layers 222. Fiber fabric layers 221 are arranged between adjacent resin layers 222. The multiple resin layers 222 and the fiber fabric layers 221 are hot-pressed to form the flexible composite layer 22, and the intralayer pores of the fiber fabric layer 221 are infiltrated with the resin of the resin layer 222 to form fiber-resin coexistence; a force-relieving and shock-absorbing layer 21 is laid on one side of the flexible composite layer 22, and a buffer layer 23 is laid on the other side of the flexible composite layer 22; hot-melt adhesive powder is hot-sprayed on the interface surface where the force-relieving and shock-absorbing layer 21, the flexible composite layer 22, and the buffer layer 23 are connected; the hot-melt adhesive powder is evenly covered on the interface; the interface is bonded by thermal vacuum bonding, and the protective layer 2 of the overall structure is formed by thermal bonding of the interface.

In this embodiment, the fiber fabric layer 221 and the resin layer 222 provided as the spacer layer are hot pressed to form the flexible composite layer 22, and the force-releasing and shock-absorbing layer 21, the flexible composite layer 22 and the buffer layer 23 are thermally bonded at the interface to form an integrated protective layer 2 of the armor. When the protective gear is hit, the force is buffered by the fiber fabric layer 221 and diffused in the normal direction to achieve the force-releasing effect. Combined with the joint protection of the force-releasing and shock-absorbing layer 21 and the buffer layer 23, the diffusion of the force can be clearly felt when being hit. Although the sound of the hit is very loud, the pain is very weak.

In this embodiment, the force-releasing and shock-absorbing layer 21, the flexible composite layer 22, and the buffer layer 23 constituting the protective layer 2 have complementary properties and together constitute the core protective layer 2 suitable for sports protection; wherein, the force-releasing and shock-absorbing layer 21 can eliminate the resonance caused by the impact and play an energy-absorbing role; the flexible composite layer 22 can extend the impact force from point force to surface force, realize force decomposition, reduce the force value and force pressure; the buffer layer 23 is close to the human body, can provide a soft and comfortable feeling, and filter the force value escaping from the flexible composite layer 22.

A plurality of penetrating small holes 220 are regularly formed on the flexible composite layer 22 . The diameter of the small holes 220 is 1-2 mm, and the hole spacing between the small holes 220 is 3-5 cm.

Punching holes is performed on the flexible composite layer 22 of the protective layer 2 to improve air permeability. Combined with the sweat absorption and air permeability characteristics of the buffer layer 23, sweat on the body surface can be effectively discharged to cool the human body, greatly improving sports comfort.

In this embodiment, the small holes 220 can be processed by laser cutting equipment, which effectively ensures the uniformity and consistency of the opening of the small holes 220.

In the embodiment shown in Figure 2, the flexible composite layer 22 includes three resin layers 222, and two fiber fabric layers 221 are arranged between adjacent resin layers 222, forming a spacing layer structure of resin layer 222-fiber fabric layer 221-resin layer 222-fiber fabric layer 221-resin layer 222; the fiber content of the flexible composite layer 22 accounts for 50-80%, the density is 0.9-1.0g/cm3, and the thickness of the flexible composite layer 22 is 0.5-5mm, preferably 1.5mm; at the same protection level, the protective gear of this embodiment is very light and extremely comfortable to wear.

In this embodiment, the fiber fabric layer 221 and the resin layer 222 are spaced apart so that the resin layer 222 can better infiltrate into the fiber fabric layer 221, so that the material of the flexible composite layer 22 is highly integrated, the inner layer structure is highly regular, and there is a relatively obvious layer interface between the resin layer 222 and the fiber fabric layer 221; the specific number of layers can be set according to actual usage requirements.

The fiber fabric layer 221 is made of polyester, polypropylene, nylon, acrylic, chlorofiber, vinylon, spandex or two or more thereof in this embodiment, and the weaving texture of the fiber fabric layer 221 is plain weave, twill, satin or two or more thereof in this embodiment; the resin layer 222 is made of thermoplastic resin material, which is PP, PE, POE, TPE, PVC or two or more thereof in this embodiment.

In this embodiment, the fiber fabric layer 221 serves as the main body of the armor protection performance, and embodies excellent properties such as impact resistance, flexibility and high strength. During the manufacturing process, the fiber fabric layer 221 is ensured to maintain its structural form by laying the resin layer 222 at intervals; the resin layer 222 plays a role in structural protection and bonding.

In actual operation, the fiber fabric layer 221 is preferably made of polypropylene and polyester, and the resin layer 222 is preferably made of PE and PP, which are all existing conventional materials with low prices, wide sources, and are easy to obtain.

The force-dissipating and shock-absorbing layer 21 is a flexible elastic layer made of PE/EVA blended by supercritical _CO2 micro-foaming technology. Under supercritical temperature and pressure, uniform and fine closed air bags are generated inside the PE/EVA, and the surface is not foamed, but is flat, smooth and without holes, with a thickness of 1-4 mm.

In this embodiment, the supercritical parameters can be set to temperature > 31°C and pressure > 7.4Mpa. Supercritical foaming is different from conventional free foaming. It foams in the product cavity. The skin does not foam because the skin contacts the inner wall of the cavity and is hindered by the space of the inner wall of the cavity. The foaming is limited, resulting in no foaming of the skin.

In this embodiment, the force-release and shock-absorbing layer 21 adopts the micro-foaming technology, which can effectively ensure its energy absorption effect, avoid collapse under force, and effectively ensure structural stability.

The buffer layer 23 is a sponge made by blending natural latex and PU material and foaming at a high rate at high temperature. It is shaped after radiation cross-linking. The pores are dense and large in diameter. There are open pores on the surface. The thickness is 1-3 mm.

In this embodiment, the buffer layer 23 is foamed at an ultra-high rate, which effectively ensures a soft and comfortable feeling, assists the breathable layer 3 in ventilation and sweat absorption, and can also effectively filter the force escaping from the flexible composite layer 22.

In this embodiment, natural latex and PU material can be achieved by existing physical blending operation. Liquid natural latex and particle PU material are evenly mixed in a blender at a ratio of 4:1 or 5:1, and 0.5-2% foaming agent and 1% cross-linking agent are added during foaming.

The outer layer 1 and the breathable layer 3 are respectively attached to both sides of the protective layer 2, the buffer layer 23 in the protective layer 2 is close to the breathable layer 3, and the force-dissipating and shock-absorbing layer 21 is close to the outer layer 1, forming armor; the edges of the breathable layer 3 and the outer layer 1 are both protruding from the protective layer 2 to form a space for sewing needles, as shown in Figure 3.

In actual operation, the edges of the breathable layer 3 and the outer layer 1 can be aligned, and one edge can be sewn, and then the protective layer 2 can be put in, and then the breathable layer 3 and the outer layer 1 can be sewn around to complete the sewing.

In actual use, you can also make hemming to hide the sewing thread; of course, you can also use a template machine for automatic sewing.

The outer layer 1 comprises a nylon fabric layer woven by warp and weft of nylon tows, and the surface of the nylon tows is coated with a wear-resistant Teflon coating; the thickness of the nylon fabric layer is 0.2-0.5mm, and high-quality leather is arranged on the inner side of the nylon fabric layer as a supporting layer, and the thickness of the supporting layer is 0.2-0.5mm.

In this embodiment, high-strength wear-resistant modified nylon is extruded and pulled into a tow, and then the nylon tow is surface treated with a Teflon coating so that the surface of each tow is coated with a wear-resistant Teflon coating, and then the warp and weft are woven into nylon cloth to obtain the nylon cloth layer in the outer layer 1.

The air permeable layer 3 is a mesh cloth formed by blending and weaving cotton, linen and polyester fibers. The mesh cloth has a three-layer mesh structure and a thickness of 0.5-1 mm.

The flexible sports protective gear of this embodiment, as shown in FIG4, includes independent and complete armor pieces 10 that match the shapes of the human chest, back, hands, and legs, respectively. Each armor piece 10 is made of any of the protective armors mentioned above. Each armor piece 10 is independently embedded in the clothing, and the edges of the armor pieces 10 are hidden, forming a protective gear with an overall embedded full-protection structure.

In this embodiment, the protective armor constitutes an integral armor piece 10 adapted to the human body part, and the armor piece 10 is embedded in the clothing to obtain a protective gear with a full protective structure, thereby achieving all-round protection for the human body.

Different from the structure of external armor plates in existing conventional protective gear, the armor plates 10 in this embodiment adopt a hidden structure, and the edges of the armor plates 10 are sewn into the fabric of the clothing, which effectively prevents the armor plates 10 from falling off and shifting, and effectively ensures the overall appearance.

In this embodiment, the protective layer 2 of the inner core of the protective gear is a combination of flexible fiber braid and resin, which makes the protective gear have extremely high impact resistance and effectively guarantees the protective properties. Combined with the characteristics of the integral embedded armor of the protective gear, it effectively guarantees all-round protection for the wearer's body.

In the protective layer of the core of the protective gear, the flexible composite layer is made of fiber fabric layer and resin layer by hot pressing and impregnation, forming a unique fiber woven cloth structure. When hit, it will not break or fall off. The protective gear is embedded, so there will be no secondary injury to personnel.

The armor coverage rate of the chest is over 90%, the armor coverage rate of the back is over 93%, and the armor coverage rate of the hands and legs is over 85%, ensuring that the armor's protective area covers a large area and effectively protects the parts that are vulnerable to impact during exercise.

The protective armor of the present invention weighs 0.7-0.8 times that of conventional nylon protective gear and 0.3-0.5 times that of conventional cold-rolled steel plate armor. Due to its lightness, it greatly improves the comfort after wearing. Combined with the flexible characteristics of the protective gear material, it can be easily bent so that movement is not affected, effectively ensuring the wearer's flexibility.

The method for forming the flexible sports protective gear of this embodiment comprises the following steps:

The first step: extrusion spinning is used to obtain fiber bundles, and the fiber bundles are woven into fiber fabric layers 221 according to specifications. The fiber fabric layers 221 and resin layers 222 are stacked at intervals, and resin layers 222 are laid on both sides of the fiber fabric layer 221. The flexible composite layer 22 is obtained by hot pressing and compounding. The pores within the fiber fabric layer 221 are impregnated with the resin of the resin layer 222 to form fiber-resin coexistence. The resin layer 222 constitutes the structural support of the flexible composite layer 22, and the fiber fabric layer 221 constitutes the main body of the armor protection performance.

Step 2: regularly opening a plurality of penetrating small holes 220 on the flexible composite layer 22;

Step 3: placing the flexible composite layer 22 in a mold, and shaping it into a curved surface matching the chest, back, hands, and legs of the human body by thermoforming to improve fit and wearing comfort, and cutting after shaping;

Step 4: Each of the cut flexible composite layers 22 is respectively bonded to the force release and shock absorption layer 21 and the buffer layer 23 on both sides through interface heat bonding to obtain the protective layer 2;

A layer of hot melt powder is hot sprayed on the interface surface of the force-release and shock-absorbing layer 21, the flexible composite layer 22, and the buffer layer 23 to evenly cover the interface. After being bonded by a thermal vacuum bonding device, the different interfaces are stably combined into a protective layer 2 with an integral structure.

Step 5: Cut the outer layer 1 and the breathable layer 3 whose edge size is larger than the protective layer 2, insert the protective layer 2 between the outer layer 1 and the breathable layer 3, sew the edges of the outer layer 1 and the breathable layer 3 that are in contact with each other, and sew to obtain the armor pieces 10 that match the chest, back, hands, and legs of the human body;

Step 6: Hide the edges of each armor plate 10 and embed them in the corresponding position of the clothing to obtain a protective gear with an overall embedded full protection structure.

The protective gear of this embodiment does not involve harmful substances such as glue, acrylic double-sided tape, radioactive elements and chemicals with pungent odors during the molding process, and is non-toxic and harmless to the human body, green and healthy.

The armor piece of the present invention is embedded in clothing to obtain a protective gear with a full protective structure, thereby achieving all-round protection for the human body; moreover, the armor is lightweight as a sports protective gear, comfortable to wear, and is particularly suitable for sports armor for martial arts weapons striking, which greatly ensures the overall protection and flexibility of the wearer.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims (10)

1. A flexible sports protective armor, characterized in that: it comprises a flexible composite layer (22), the flexible composite layer (22) comprises a plurality of resin layers (222) arranged, a fiber fabric layer (221) is arranged between adjacent resin layers (222), the plurality of resin layers (222) and the fiber fabric layer (221) are hot-pressed to form the flexible composite layer (22), the pores within the fiber fabric layer (221) are infiltrated by the resin of the resin layer (222) to form a fiber-resin coexistence state; a force-dissipating and shock-absorbing layer (21) is laid on one side of the flexible composite layer (22), a buffer layer (23) is laid on the other side of the flexible composite layer (22), hot-melt adhesive powder is hot-sprayed on the interface surface where the force-dissipating and shock-absorbing layer (21), the flexible composite layer (22) and the buffer layer (23) are connected, the hot-melt adhesive powder is evenly covered on the interface, the interface is bonded by thermal vacuum bonding, and the protective layer (2) of the overall structure is formed by thermal bonding of the interface. 2. A flexible sports protective armor as described in claim 1, characterized in that: the flexible composite layer (22) is regularly provided with a plurality of penetrating small holes (220), the diameter of the small holes (220) is 1-2 mm, and the hole spacing between the small holes (220) is 3-5 cm. 3. A flexible sports protective armor as claimed in claim 1, characterized in that: the flexible composite layer (22) includes three resin layers (222), and two fiber fabric layers (221) are arranged between adjacent resin layers (222); the fiber content of the flexible composite layer (22) accounts for 50-80%, the density is 0.9-1.0g/ ^cm3 , and the thickness of the flexible composite layer (22) is 0.5-5mm. 4. A flexible sports protective armor as described in claim 1, characterized in that: the fiber fabric layer (221) is one or more of polyester, polypropylene, nylon, acrylic, chlorofiber, vinylon, and spandex, and the weaving texture of the fiber fabric layer (221) is one or more of plain, twill, and satin; the resin layer (222) is made of thermoplastic resin material, which is one or more of PP, PE, POE, TPE, and PVC. 5. A flexible sports protective armor as described in claim 1, characterized in that: the force-dissipating and shock-absorbing layer (21) is a flexible elastic layer made by blending PE/EVA using supercritical _CO2 micro-foaming technology, with a thickness of 1-4 mm; the buffer layer (23) is a sponge made by blending natural latex and PU materials and foaming at an ultra-high rate at high temperature, which is shaped after radiation cross-linking, has dense pores and large pore diameters, and has open pores on the surface, with a thickness of 1-3 mm. 6. A flexible sports protective armor as described in claim 1, characterized in that: the outer layer (1) and the breathable layer (3) are respectively arranged on both sides of the protective layer (2), the buffer layer (23) in the protective layer (2) is close to the breathable layer (3), and the force-dissipating and shock-absorbing layer (21) is close to the outer layer (1); the edges of the breathable layer (3) and the outer layer (1) are both protruding from the protective layer (2) to form a space for sewing needles. 7. A flexible sports protective armor as described in claim 6, characterized in that: the outer layer (1) includes a nylon cloth layer woven by warp and weft of nylon tows, and the surface of the nylon tows is coated with a wear-resistant Teflon coating; the thickness of the nylon cloth layer is 0.2-0.5mm, and high-quality leather is arranged on the inner side of the nylon cloth layer as a supporting layer, and the thickness of the supporting layer is 0.2-0.5mm; the breathable layer (3) is a mesh cloth formed by blending and weaving cotton and linen fibers and polyester fibers, and the mesh cloth has a three-layer mesh structure and can be 0.5-1mm thick. 8. A flexible sports protective gear, characterized in that it comprises independent and complete armor plates (10) that match the shapes of the human chest, back, hands, and legs, respectively, each armor plate (10) is made of the protective armor described in any one of claims 1-7, each armor plate (10) is independently embedded in the clothing, and the edges of the armor plates (10) are hidden, forming a protective gear with an overall embedded full-protection structure. 9. A flexible sports protective gear as described in claim 8, characterized in that the armor coverage rate at the front chest is more than 90%, the armor coverage rate at the back is more than 93%, and the armor coverage rate at the hands and legs is more than 85%. 10. A method for forming a flexible sports protective gear, characterized in that it comprises the following steps: extruding and spinning to obtain a fiber bundle, weaving the fiber bundle into a fiber fabric layer (221) according to specifications, laminating the fiber fabric layer (221) and the resin layer (222) at intervals, and hot pressing and compounding to obtain a flexible composite layer (22); A plurality of penetrating small holes are regularly formed on the flexible composite layer (22); The flexible composite layer (22) is placed in a mold, and is thermoformed to form a curved surface matching the chest, back, hands, and legs of a human body, and then cut after the shaping; Each of the cut flexible composite layers (22) is respectively bonded to the force release and shock absorption layer (21) and the buffer layer (23) on both sides through interface thermal bonding to obtain a protective layer (2); The outer layer (1) and the breathable layer (3) are cut to have a size larger than that of the protective layer (2), the protective layer (2) is placed between the outer layer (1) and the breathable layer (3), and the edges of the outer layer (1) and the breathable layer (3) that are in contact with each other are sewn to obtain armor pieces (10) that match the chest, back, hands, and legs of a human body; The edges of each armor plate (10) are hidden and embedded in the corresponding position of the clothing to obtain a protective gear with an overall embedded full protection structure.