Bulletproof baffle and manufacturing process

Abstract

The invention relates to the technical field of bulletproof plates, in particular to a bulletproof baffle and a manufacturing process. The bulletproof baffle comprises a bulletproof shell, a bulletproof baffle body and a baffle plate, the cavity is filled with the energy absorption structure; the supporting structure is arranged in the cavity, the supporting structure is fixedly connected with a first side face and a second side face in the bullet-proof shell, and the first side face and the second side face are oppositely arranged; wherein the first side face is a bullet facing face, the cross section of the supporting structure and the cross section of the second side face are of a triangular structure, and the angle A of the triangular structure is fixedly connected with the center line of the bullet facing face. The triangular structure formed by the cross sections of the supporting structure and the second side face enables the bulletproof baffle to be more stable, the strength of the first side face, namely the bullet facing face, can be improved, the capacity of the bulletproof baffle for bearing the impact force of a bullet is higher, and the supporting structure can conduct part of the impact force of the bullet to the energy absorption structure and the second side face. And the impact force borne by the first side surface can be relieved.

Description

Technical Field

[0001] The present invention relates to the technical field of bulletproof plates, and particularly to a bulletproof baffle and a manufacturing process thereof. Background Art

[0002] Currently, the commonly used bulletproof plates are as follows: metal bulletproof plates, ceramic bulletproof plates, and polymer-ceramic composite bulletproof plates. Metal bulletproof plates are inexpensive and wear-resistant, but they are prone to fragmentation when in contact with bullets, which will cause additional damage. At the same time, their self-weight is heavy and their thickness is large, greatly affecting their mobility and flexibility. In addition, metal bulletproof plates are mostly composed of different layers, and there are special requirements for the connection methods between different layers, and the connection process is complex; Ceramic bulletproof plates are made of high-strength and high-hardness materials such as alumina, silicon carbide, and boron carbide, which break the bullet when in contact with the bullet. Although they can effectively prevent the bullet from penetrating, they will generate a large number of fragments that fly outward, causing additional damage; while the manufacturing process of polymer-ceramic composite bulletproof plates is very complex and it is difficult to mass-produce. Therefore, there is an urgent need for a bulletproof plate with high flexibility, which can avoid causing additional damage and has a simple structure. Summary of the Invention

[0003] In view of this, the present invention provides a bulletproof baffle and a manufacturing process thereof to solve the problems existing in commonly used bulletproof plates.

[0004] In a first aspect, the present invention provides a bulletproof baffle, comprising:

[0005] A bulletproof housing having at least one cavity therein;

[0006] An energy-absorbing structure filled in the cavity;

[0007] A support structure disposed in the cavity, the support structure being fixedly connected to a first side surface and a second side surface in the bulletproof housing respectively, the first side surface and the second side surface being oppositely disposed;

[0008] Wherein, the first side surface is the bullet-facing surface, and the cross-sectional structure of the support structure and the second side surface is a triangular structure, and the angle A of the triangular structure is fixedly connected to the median line of the bullet-facing surface.

[0009] Advantageous Effects:

[0010] By arranging a support structure inside the cavity, the support structure is fixedly connected to the first side and the second side respectively. The triangular structure formed by the cross-section of the support structure and the second side makes the bulletproof baffle more stable, and can improve the strength of the first side, that is, the bullet-facing side, making it more capable of withstanding the impact force of the bullet. At the same time, the support structure can conduct part of the impact force generated when the bullet contacts the first side to the energy-absorbing structure and the second side. The energy-absorbing structure and the second side can absorb part of the impact force, which is beneficial to alleviating the impact force borne by the first side.

[0011] In an alternative embodiment, the cavity is divided into a plurality of energy-absorbing regions by the support structure, and each of the energy-absorbing regions is filled with the energy-absorbing structure.

[0012] Beneficial effects:

[0013] The support structure can conduct the impact force to the energy-absorbing structures in a plurality of energy-absorbing regions. The support structure can enable all the energy-absorbing structures in the cavity to participate in the process of consuming the impact force of the bullet, thereby effectively alleviating the impact force borne by the first side. At the same time, it can also avoid the problem that some energy-absorbing structures are too far away from the first side and cannot participate in consuming the impact force.

[0014] In an alternative embodiment, the support structure includes two webs. The first ends of the two webs are fixedly connected and have an included angle. The second ends of the two webs are respectively fixedly connected to the two ends of the second side. The cross-section of the two webs and the second side forms a triangular structure.

[0015] Beneficial effects:

[0016] When the bullet enters the cavity and contacts the obliquely arranged web, the speed of the bullet has dropped to the lowest. The obliquely arranged web can thus change the movement direction of the bullet and extend its movement trajectory in the cavity. During this process, the kinetic energy of the bullet is completely consumed, and the energy-absorbing structure then wraps it up.

[0017] In an alternative embodiment, both ends of the web have connecting inclined surfaces. The two connecting inclined surfaces are parallel to each other, and the two connecting inclined surfaces are respectively attached to and fixedly connected to the first side and the second side.

[0018] Beneficial effects:

[0019] The web is provided with connecting inclined surfaces, which makes the installation of the web more convenient, is beneficial to improving the installation efficiency, and reduces the installation time.

[0020] In an alternative embodiment, the bulletproof housing includes a flexible layer and a rigid layer, and the flexible layer is fixedly arranged on the inner side of the rigid layer.

[0021] Beneficial effects:

[0022] During the process of a bullet's steel core penetrating a steel plate, the steel plate can absorb a small part of the bullet's kinetic energy. Subsequently, the bullet enters the UHMWPE fabric, and the UHMWPE fabric is conducive to dissipating part of the kinetic energy of the bullet's steel core through the shearing and stretching deformation of the fiber filaments.

[0023] In an alternative embodiment, a connecting member is provided on the outer sidewall of the second side surface, and the connecting member is used for detachably connecting with the connecting member of another bulletproof baffle.

[0024] Beneficial effects:

[0025] The bulletproof baffle is connected and combined with another bulletproof baffle through the connecting member, thereby increasing the bulletproof area, being conducive to improving the integrity, and at the same time making the bulletproof baffle have high flexibility.

[0026] In an alternative embodiment, there are four such cavities in the bulletproof housing, and there is a partition between two of the cavities.

[0027] Beneficial effects:

[0028] Adjacent cavities are separated by partitions, which can effectively ensure the interfacial connectivity between the bulletproof housing and the energy-absorbing structure, and can reduce the peeling damage between the upper and lower surfaces of the bulletproof housing and the energy-absorbing structure after being stressed, being conducive to enhancing the structural integrity.

[0029] In a second aspect, the present invention also provides a manufacturing process for a bulletproof baffle, which is applied to the bulletproof baffle described in the above solution, and includes the following steps:

[0030] Cut the sponge and the steel plate for making the bulletproof housing according to the required dimensions, impregnate the sponge in the shear thickening fluid to form an energy-absorbing structure;

[0031] Place the bottom steel plate and the two side steel plates in the lower mold in the vacuum film, so that the bottom steel plate and the two side steel plates form a cavity. Lay the UHMWPE fabric on the inner side surfaces of the bottom steel plate and the two side steel plates. Subsequently, place the support structure and the energy-absorbing structure in the cavity, lay the UHMWPE fabric on the energy-absorbing structure, then cover the top steel plate on the cavity to close the cavity, and then cover the upper mold;

[0032] Use a vacuum device to suck out the air in the vacuum film, and at the same time pump the curing agent mixed with HS-2101-G100 type unsaturated polyester resin and methyl ethyl ketone peroxide into the mold. After waiting for the specified time, the bulletproof baffle can be obtained.

[0033] Beneficial effects:

[0034] The above process for manufacturing the bulletproof baffle is simple and convenient to operate, which is conducive to batch production of the bulletproof baffle and improves the production efficiency.

[0035] In an alternative embodiment, after the sponge is impregnated in the shear thickening fluid to form an energy absorption structure, a UHMWPE cloth is wrapped around the surface of the energy absorption structure, and then it is placed into the cavity.

[0036] Beneficial effects:

[0037] By wrapping another layer of UHMWPE cloth around the sponge, it is beneficial to improve the impact resistance of the energy absorption structure and effectively improve the bulletproof effect of the bulletproof baffle.

[0038] In an alternative embodiment, before placing the bottom steel plate and the two side steel plates in the lower mold within the vacuum film, a release cloth and a flow guide cloth are sequentially laid in the lower mold; before covering the upper mold, a release cloth and a flow guide cloth are sequentially laid on the top steel plate.

[0039] Beneficial effects:

[0040] By providing a release cloth, the upper mold and the lower mold can be easily demolded. By providing a flow guide cloth, the curing agent can be guided to the joints of the steel plates and inside the steel plates, so that the steel plates are fully adhered and fixed to the UHMWPE cloth, the support structure, and the partition and the UHMWPE cloth, which is beneficial to improving the production quality and reducing the defective rate. Description of the drawings

[0041] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0042] Figure 1 It is a cross-sectional schematic diagram of a bulletproof baffle according to an embodiment of the present invention;

[0043] Figure 2 It is an internal schematic diagram of a bulletproof baffle according to an embodiment of the present invention;

[0044] Figure 3 It is a rear view of a bulletproof baffle according to an embodiment of the present invention;

[0045] Figure 4 It is a schematic diagram of a manufacturing process of a bulletproof baffle according to an embodiment of the present invention.

[0046] Description of the reference numerals:

[0047] 1. Bulletproof housing; 101. First side; 102. Second side; 103. Flexible layer; 104. Rigid layer; 2. Energy-absorbing structure; 3. Support structure; 301. Web; 3011. Connecting inclined plane; 4. Connector; 5. Partition; 6. Bottom steel plate; 7. Side steel plate; 8. Lower mold; 9. Vacuum film; 10. Top steel plate; 11. Upper mold; 12. Vacuum device; 13. Vacuum tube; 14. Curing agent delivery pipe; 15. Curing agent storage tank; 16. UHMWPE cloth; 17. Demolding cloth; 18. Flow guiding cloth; 19. Curing agent collection structure. Detailed implementation manners

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] The following combines Figures 1 to 4 , and describes the embodiments of the present invention.

[0050] According to an embodiment of the present invention, on the one hand, a bulletproof baffle is provided, including: a bulletproof housing 1, an energy-absorbing structure 2, and a support structure 3.

[0051] Specifically, there is at least one cavity in the bulletproof housing 1. The energy-absorbing structure 2 is filled in the cavity. The support structure 3 is arranged in the cavity. The support structure 3 is fixedly connected to the first side 101 and the second side 102 in the bulletproof housing 1 respectively. The first side 101 and the second side 102 are arranged opposite to each other. Among them, the first side 101 is the bullet-facing surface. The cross-section structure of the support structure 3 and the second side 102 is a triangular structure. The angle A of the triangular structure is fixedly connected to the median line of the bullet-facing surface.

[0052] In this embodiment, preferably, the bulletproof housing 1 is a rectangular structure. There is a cavity in the bulletproof housing 1. The cavity is filled with the energy-absorbing structure 2. The support structure 3 is also arranged in the cavity. The support structure 3 is fixedly connected to the first side 101 and the second side 102 in the cavity respectively. The first side 101 and the second side 102 are arranged opposite to each other, as Figure 1As shown, the cross-section of the support structure 3 and the second side 102 is a triangular structure. The first side 101 is the bullet-facing side. The angle A of the triangular structure is fixedly connected to the median line of the bullet-facing side. When the bullet contacts the first side 101 instantaneously, a high-speed impact will be generated. The bullet head is blocked by the first side 101, which will cause the lead base and the jacket of the bullet head to break. The huge impact force causes the steel core head of the bullet head to deform, slowing down its further penetration ability. During the process of the steel core piercing through the first side 101, the first side 101 can absorb a small part of the kinetic energy of the bullet. When the first side 101 is impacted, the support structure 3 can conduct part of the impact force to the second side 102 and the energy absorption structure 2. The second side 102 and the energy absorption structure 2 can absorb part of the impact force. The support structure 3 will eliminate part of the impact force during the conduction process. If the penetrating ability of the incoming bullet is strong and the kinetic energy is large, the bullet will penetrate through the first side 101 and enter the cavity, contacting the energy absorption structure 2. The energy absorption structure 2 is a sponge impregnated with a shear thickening fluid. The shear thickening fluid inside the sponge has the shear thickening phenomenon. At a high shear rate, the viscosity rises rapidly. The sharp increase in viscosity effectively absorbs a large amount of kinetic energy of the steel core, further slowing down the penetration ability of the bullet. When the kinetic energy of the steel core is completely consumed, the energy absorption structure 2 will wrap the bullet in it.

[0053] It should be noted that by arranging the support structure 3 in the cavity, the support structure 3 is fixedly connected to the first side 101 and the second side 102 respectively. The triangular structure of the cross-section of the support structure 3 and the second side 102 makes the bulletproof baffle more stable, and can improve the strength of the first side 101, that is, the bullet-facing side, making its ability to withstand the impact force of the bullet head stronger. At the same time, the support structure 3 can conduct part of the impact force generated when the bullet head contacts the first side 101 to the energy absorption structure 2 and the second side 102. The energy absorption structure 2 and the second side 102 can absorb part of the impact force, which is beneficial to alleviating the impact force borne by the first side 101.

[0054] In one embodiment, the cavity is divided into multiple energy absorption regions by the support structure 3, and each energy absorption region is filled with the energy absorption structure 2.

[0055] In this embodiment, as Figure 1 shown, the energy absorption structure 2 in each energy absorption region is in contact with the support structure 3. When the support structure 3 conducts the impact force received by the first side 101 to the second side 102, the support structure 3 can conduct part of the impact force to the energy absorption structure 2 in multiple energy absorption regions. The support structure 3 can enable all the energy absorption structures 2 in the cavity to participate in the process of consuming the impact force of the bullet head, thereby effectively alleviating the impact force borne by the first side 101. At the same time, it can also avoid the problem that some of the energy absorption structures 2 are too far away from the first side 101 and cannot participate in consuming the impact force.

[0056] In one embodiment, the support structure 3 includes two webs 301. The first ends of the two webs 301 are fixedly connected and form an included angle. The second ends of the two webs 301 are respectively fixedly connected to the two ends of the second side surface 102. The cross-section of the two webs 301 and the second side surface 102 is configured as a triangular structure.

[0057] In this embodiment, as Figure 1 shown, the support structure 3 includes two webs 301. The two webs 301 are obliquely arranged in the cavity. The first ends of the two webs 301 are fixedly connected to each other. The connection part of the two webs 301 is fixedly connected to the midline of the first side surface 101. The second ends of the two webs 301 are respectively fixedly connected to the two ends of the second side surface 102. The cross-section of the two webs 301 and the second side surface 102 is configured as an isosceles triangle. The included angle formed by the first ends of the two webs 301 is angle A.

[0058] It should be noted that when the bullet enters the cavity and contacts the obliquely arranged web 301, the speed of the bullet has dropped to the lowest. The obliquely arranged web 301 can thus change the movement direction of the bullet, extend the movement trajectory of the bullet in the cavity. During this process, the kinetic energy of the bullet is completely consumed, and the energy-absorbing structure 2 wraps the bullet therein.

[0059] In one embodiment, both ends of the web 301 have connecting inclined surfaces 3011. The two connecting inclined surfaces 3011 are parallel to each other. The two connecting inclined surfaces 3011 are respectively attached to and fixedly connected to the first side surface 101 and the second side surface 102.

[0060] In this embodiment, as Figure 1 shown, both ends of the web 301 respectively have connecting inclined surfaces 3011 that are attached to the first side surface 101 and the second side surface 102. The web 301 is provided with the connecting inclined surfaces 3011, which makes the installation of the web 301 more convenient, is conducive to improving the installation efficiency and reducing the installation time.

[0061] In one embodiment, the bulletproof housing 1 includes a flexible layer 103 and a rigid layer 104. The flexible layer 103 is fixedly arranged on the inner side surface of the rigid layer 104.

[0062] In this embodiment, as Figure 1As shown, the flexible layer 103 is fixedly arranged on the inner side surface of the rigid layer 104. Both ends of the web 301 are fixedly connected to the flexible layer 103 on the first side surface 101 and the second side surface 102 respectively. Preferably, the rigid layer 104 is a steel plate, and the flexible layer 103 is a UHMWPE cloth 16 (Ultra High Molecular Weight Polyethylene Fiber). During the process of the steel core of the bullet penetrating the steel plate, the steel plate can absorb a small part of the kinetic energy of the bullet. Subsequently, the bullet enters the UHMWPE cloth 16. The UHMWPE cloth 16 dissipates part of the kinetic energy of the steel core of the bullet through the shearing and stretching deformation of the fiber filaments. If the kinetic energy of the bullet is weak, it will be blocked by the UHMWPE cloth 16. If the kinetic energy and penetrability of the bullet are strong, it will penetrate through the UHMWPE cloth 16 and enter the cavity, and the energy-absorbing structure 2 and the support structure 3 will block the bullet.

[0063] Preferably, the web 301 is composed of a steel plate wrapped with a UHMWPE cloth 16. When the bullet contacts the web 301, the UHMWPE cloth 16 on the web 301 will also pull the bullet, and the bullet will change its moving direction along with the obliquely arranged steel plate, extending the moving trajectory.

[0064] In one embodiment, a connector 4 is arranged on the outer side wall of the second side surface 102. The connector 4 is used for detachably connecting with the connector 4 of another bulletproof baffle.

[0065] In this embodiment, as Figure 1 shown, preferably, the connector 4 includes a buckle and a slot. The bulletproof baffle can be connected to the slot of another bulletproof baffle through the buckle, so as to combine the two bulletproof baffles to increase the bulletproof area. The connector 4 is arranged at the edge of the second side surface 102, and the adjacent connectors 4 are arranged at intervals. The number of connections is not limited here, and the number of the connectors 4 can be determined according to the size, strength and process of the bulletproof baffle.

[0066] In other embodiments, the connector 4 includes a bolt and a socket. The bolt and the socket are arranged on the side surface of the bulletproof baffle. The bulletproof baffle can be connected to the socket of another bulletproof baffle through the bolt.

[0067] In one embodiment, there are four cavities in the bulletproof housing 1, and there is a partition 5 between two cavities.

[0068] In this embodiment, as Figure 2 and Figure 3As shown, there are four cavities inside the bulletproof housing 1. Absorbing energy structures 2 and supporting structures 3 are arranged in all four cavities. There is a partition 5 for separation between adjacent two cavities. Preferably, the partition 5 is composed of a steel plate wrapped with UHMWPE cloth 16. The adjacent cavities are separated by the partition 5, which can effectively improve the interfacial connectivity between the bulletproof housing 1 and the energy-absorbing structure 2, reduce the peeling damage between the upper and lower surfaces of the bulletproof housing 1 and the energy-absorbing structure 2 after being stressed, and is beneficial to enhancing the structural integrity.

[0069] According to an embodiment of the present invention, on the other hand, a manufacturing process for a bulletproof baffle is further provided, which is used to manufacture the bulletproof baffle described in the above embodiment, and includes the following steps:

[0070] Cut the sponge and the steel plate for making the bulletproof housing 1 according to the required size, and impregnate the sponge in the shear thickening fluid to form the energy-absorbing structure 2.

[0071] Place the bottom steel plate 6 and two side steel plates 7 in the lower mold 8 in the vacuum film 9, so that the bottom steel plate 6 and the two side steel plates 7 form a cavity. Lay the UHMWPE cloth 16 on the inner sides of the bottom steel plate 6 and the two side steel plates 7. Then place the supporting structure 3 and the energy-absorbing structure 2 in the cavity, lay the UHMWPE cloth 16 on the energy-absorbing structure 2, cover the top steel plate 10 on the cavity to seal the cavity, and then cover the upper mold 11.

[0072] Use the vacuum device 12 to suck out the air in the vacuum film 9, and at the same time pump the curing agent mixed with HS-2101-G100 type unsaturated polyester resin and methyl ethyl ketone peroxide into the mold. After waiting for the specified time, the bulletproof baffle can be obtained.

[0073] In this embodiment, as Figure 4As shown, cut the sponge and the steel plates for making the bulletproof shell 1, the partition 5 and the support structure 3 according to the required dimensions, and immerse the sponge in the shear thickening fluid so that the sponge absorbs the shear thickening fluid to form the energy-absorbing structure 2. Subsequently, place the lower mold 8 in the vacuum film 9, put the bottom steel plate 6 and the side steel plates 7 into the lower mold 8, so that the bottom steel plate 6 and the side steel plates 7 form a cavity. Lay the UHMWPE cloth 16 on the inner sides of the bottom steel plate 6 and the side steel plates 7. The side of the bottom steel plate 6 and the side steel plates 7 facing the cavity is the inner side. Then, put the sponge impregnated with the shear thickening fluid, the support structure 3 and the partition 5 into the cavity. Lay the UHMWPE cloth 16 above the sponge and the support structure 3, cover the top steel plate 10 on the cavity to close the cavity. Then, cover the upper mold 11. The upper mold 11 and the lower mold 8 cooperate to accommodate the bulletproof shell 1. Then, seal the vacuum film 9. The vacuum tube 13 of the vacuum device 12 is connected to the vacuum film 9. One end of the curing agent delivery tube 14 passes through the vacuum film 9 and extends into the mold. The other end of the curing agent delivery tube 14 is connected to the curing agent storage tank 15. Start the vacuum device 12. The vacuum device 12 can suck out the air in the vacuum film 9 through the vacuum tube 13. At the same time, due to the negative pressure generated in the vacuum film 9, the curing agent in the curing agent storage tank 15 can be transported into the mold through the curing agent delivery tube 14. The curing agent can bond and fix the UHMWPE cloth 16 to the steel plate, and also bond and fix the support structure 3 to the UHMWPE cloth 16. After waiting for the specified time and allowing the curing agent to fully cure, the mold can be removed, and a bulletproof baffle can be obtained.

[0074] Preferably, in this embodiment, it is necessary to wait for 8 hours before the mold can be removed.

[0075] Preferably, the curing agent is obtained by mixing HS-2101-G100 type unsaturated polyester resin and methyl ethyl ketone peroxide, and the ratio of HS-2101-G100 type unsaturated polyester resin to methyl ethyl ketone peroxide is 1:0.012.

[0076] Specifically, the vacuum tube 13 has a first pipe section and a second pipe section. The two ends of the first pipe section are respectively connected to the vacuum film 9 and the curing agent collection structure 19, and the second pipe section is respectively connected to the curing agent collection structure 19 and the vacuum device 12. When the vacuum device 12 sucks out the air in the vacuum film 9, due to the negative pressure, the curing agent will enter the mold, and some of the curing agent may be sucked into the vacuum tube 13. In order to prevent the curing agent from entering the vacuum device 12, a curing agent collection structure 19 is provided. The curing agent collection structure 19 can collect the curing agent entering the vacuum tube 13.

[0077] In one embodiment, after the sponge is immersed in the shear thickening fluid to form the energy-absorbing structure 2, a UHMWPE cloth 16 is wrapped on the surface of the energy-absorbing structure 2, and then it is put into the cavity.

[0078] In this embodiment, before placing the sponge impregnated with the shear thickening fluid, the support structure 3, and the partition plate 5 into the cavity, a layer of UHMWPE cloth 16 is first wrapped around the surface of the sponge impregnated with the shear thickening fluid, and the UHMWPE cloth 16 is fixed to the sponge with fixing nails. A layer of UHMWPE cloth 16 is also wrapped around the surfaces of the support structure 3 and the partition plate 5. Subsequently, the sponge, the support structure 3, and the partition plate 5 wrapped with the UHMWPE cloth 16 are placed into the cavity.

[0079] In one embodiment, before placing the bottom steel plate 6 and the two side steel plates 7 in the lower mold 8 within the vacuum film 9, a release cloth 17 and a flow guiding cloth 18 are sequentially laid in the lower mold 8; before covering the upper mold 11, a release cloth 17 and a flow guiding cloth 18 are sequentially laid on the top steel plate 10.

[0080] In this embodiment, as Figure 4 shown, the release cloth 17 can facilitate the demolding of the lower mold 8 and the upper mold 11, and the flow guiding cloth 18 can guide the curing agent to the joints of the steel plates and into the steel plates, enabling the steel plates to be fully adhered and fixed to the UHMWPE cloth 16, as well as the support structure 3 and the partition plate 5 to the UHMWPE cloth 16.

[0081] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A bulletproof baffle, characterized in that: include: A bulletproof casing (1), wherein the bulletproof casing (1) has at least one cavity; An energy absorbing structure (2), wherein the energy absorbing structure (2) is filled in the cavity; A support structure (3), the support structure (3) being arranged in the cavity, the support structure (3) being fixedly connected to a first side surface (101) and a second side surface (102) in the bulletproof shell (1), respectively, the first side surface (101) and the second side surface (102) being arranged opposite to each other; The first side surface (101) is a bullet-facing surface, the cross-section of the support structure (3) and the second side surface (102) is a triangular structure, and the angle A of the triangular structure is fixedly connected to the center line of the bullet-facing surface.

2. The bulletproof shield according to claim 1, characterized in that: The cavity is divided into a plurality of energy absorbing regions by the supporting structure (3), and each of the energy absorbing regions is filled with the energy absorbing structure (2).

3. The bulletproof shield according to claim 2, characterized in that: The support structure (3) comprises two webs (301), the first ends of the two webs (301) are fixedly connected and have an included angle, the second ends of the two webs (301) are respectively fixedly connected to the two ends of the second side surface (102), and the cross-section of the two webs (301) and the second side surface (102) is constructed into a triangular structure.

4. The bulletproof shield according to claim 3, characterized in that: The two ends of the web (301) are provided with connecting inclined surfaces (3011), the two connecting inclined surfaces (3011) are parallel to each other, and the two connecting inclined surfaces (3011) are respectively attached to and fixedly connected with the first side surface (101) and the second side surface (102).

5. The bulletproof shield according to any one of claims 1 to 4, characterized in that: The bulletproof shell (1) comprises a flexible layer (103) and a rigid layer (104), wherein the flexible layer (103) is fixedly arranged on the inner side of the rigid layer (104).

6. The bulletproof shield according to claim 5, characterized in that: The outer side wall of the second side surface (102) is provided with a connecting piece (4), and the connecting piece (4) is used for being detachably connected to the connecting piece (4) of another bulletproof shield.

7. The bulletproof shield according to claim 5, characterized in that: The bulletproof shell (1) has four cavities therein, and a partition (5) is provided between two of the cavities.

8. A process for manufacturing a bulletproof baffle, applied to the bulletproof baffle as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: Cutting the sponge and the steel plate used to make the bulletproof shell (1) according to the required size, and immersing the sponge in a shear thickening liquid to form an energy absorbing structure (2); The bottom steel plate (6) and the two side steel plates (7) are placed in the lower mold (8) in the vacuum film (9) to form a cavity between the bottom steel plate (6) and the two side steel plates (7), and UHMWPE cloth (16) is laid on the inner side of the bottom steel plate (6) and the two side steel plates (7), and then the support structure (3) and the energy absorbing structure (2) are placed in the cavity, and the UHMWPE cloth (16) is laid on the energy absorbing structure (2), and then the top steel plate (10) is covered on the cavity to close the cavity, and then the upper mold (11) is covered; The air in the vacuum film (9) is sucked out by a vacuum device (12), and at the same time, a curing agent mixed with HS-2101-G100 type unsaturated polyester resin and methyl ethyl ketone peroxide is pumped into the mold. After waiting for a specified time, the bulletproof baffle can be obtained.

9. The process for manufacturing a bulletproof baffle according to claim 8, characterized in that: After the sponge is immersed in the shear thickening liquid to form an energy absorbing structure (2), the UHMWPE cloth (16) is wrapped on the surface of the energy absorbing structure (2), and then placed in the cavity.

10. The process for manufacturing a bulletproof baffle according to claim 8 or 9, characterized in that: Before placing the bottom steel plate (6) and the two side steel plates (7) in the lower mold (8) in the vacuum membrane (9), a demoulding cloth (17) and a guide cloth (18) are laid in sequence in the lower mold (8); before covering the upper mold (11), a demoulding cloth (17) and a guide cloth (18) are laid in sequence on the top steel plate (10).

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