CN215483740U - Light high-antiknock unit board and protection product thereof - Google Patents
Light high-antiknock unit board and protection product thereof Download PDFInfo
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- CN215483740U CN215483740U CN202120375350.1U CN202120375350U CN215483740U CN 215483740 U CN215483740 U CN 215483740U CN 202120375350 U CN202120375350 U CN 202120375350U CN 215483740 U CN215483740 U CN 215483740U
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Abstract
The utility model discloses a light high-antiknock unit plate and a protection product thereof, wherein the unit plate comprises an outer metal plate layer, an inner metal plate layer, an energy absorbing layer and a foam metal plate layer which are arranged in parallel, the energy absorbing layer comprises a plurality of energy absorbing layers, and each energy absorbing layer comprises a plurality of energy absorbing pipes which are arranged in parallel; two adjacent energy-absorbing layered energy-absorbing pipes are vertical to each other; an energy absorbing layer is arranged between the outer metal plate layer and the inner metal plate layer, and a foam metal plate layer is arranged between the inner metal plate layer and the outer metal plate layer; the outer surfaces of the outer metal plate layer, the middle metal plate layer, the inner metal plate layer, the energy absorption pipes and the foam metal plate layer are all sprayed with explosion-proof paint. The light high-antiknock unit plate has the characteristics of high resistance, light weight and convenience in transportation, and is suitable for manufacturing antiknock doors, antiknock walls, antiknock roofs and wall column guard plates.
Description
Technical Field
The utility model relates to a high anti-explosion unit plate, in particular to a light high anti-explosion unit plate, and belongs to the technical field of protective structures.
Background
The existing bulletproof and antiknock composite structures are various, and common structures comprise common high-strength concrete, steel structures or high-molecular high-strength fiber plate structures and the like. Although these bulletproof and antiknock composite structures also have certain bulletproof and antiknock effects, they all have the problems of low bulletproof and antiknock capability, heavy weight of single bodies (mainly referring to steel bulletproof and antiknock structures or walls), high cost, relatively poor durability and the like, and the bulletproof and antiknock reinforcement of the inner and outer walls of buildings by using common engineering material plates not only has the problems of large required plate thickness or volume, more construction materials and the like, but also has low bulletproof and antiknock efficiency. Therefore, the method is difficult to form real practical popularization and application in military, public security, external traffic embankment, public protection, and peace and movement. For example, CN201952936U discloses a novel sandwich type anti-explosion and bulletproof wall, which is composed of an ultrahigh strength active powder concrete slab or an ultrahigh strength steel fiber concrete slab, rock wool, carbon fiber cloth or aramid fiber cloth or blended high strength fiber cloth, wherein the ultrahigh strength active powder concrete slab or the ultrahigh strength steel fiber concrete slab is respectively arranged on two sides of the rock wool, steel wire meshes are uniformly distributed in the ultrahigh strength active powder concrete slab or the ultrahigh strength steel fiber concrete slab on the back blasting surface, the carbon fiber cloth or the aramid fiber cloth or the blended high strength fiber cloth is arranged on the outermost layer of the back blasting surface, adjacent layers are bonded by an adhesive, and are connected and fixed into a wall body by bolts, but the structure and the manufacturing process are complex, the cost is high, and the durability is poor. CN 202380603U discloses a building board with bulletproof and explosion-proof functions, which consists of an ultrahigh strength steel fiber concrete layer, a rock wool layer, a carbon fiber cloth layer, an ultrahigh strength active powder concrete layer and a glass fiber reinforced plastic grid, wherein the ultrahigh strength steel fiber concrete layer is provided with the glass fiber reinforced plastic grid, and the board has good durability but weaker bulletproof function to bullets.
CN107355026 discloses a shellproof blast wall of light power consumption, including wave form steel sheet, wire net, bulletproof plate, light anti-crack concrete and high polymer coating, wave form steel sheet inside and outside both sides set up the wire net respectively, the wire net of both sides is connected through the wire net connecting piece that passes wave form steel sheet, the light power consumption material is pour to the inside of wave form steel sheet, pour light elastic material between wave form steel sheet and the wire net, the outside of wire net is equipped with bulletproof plate, light anti-crack concrete is pour to the outside of bulletproof plate, light anti-crack concrete outside spraying high polymer coating.
CN111021626A discloses an explosion-proof panel of explosion-proof buffer structure, which comprises a body, this internal buffering subassembly that is provided with has set gradually fire prevention steel sheet, insulating layer, elastic buffer board, damping material layer, explosion-proof fiber concrete from inside to outside to buffering subassembly, is provided with a plurality of energy-absorbing grooves on the energy consumption material fire prevention steel sheet. According to the utility model, through the structures of the fireproof steel plate, the heat insulation layer, the elastic buffer plate, the damping material layer and the explosion-proof fiber concrete which are sequentially arranged, the impact force generated during fire explosion firstly passes through the fireproof steel plate and the heat insulation layer to carry out heat insulation treatment on the fire, then passes through the elastic buffer layer to buffer the redundant energy of impact waves and consume energy, the damping material layer is utilized to generate a large reverse damping effect to form a damping force within a certain range, and the fireproof steel plate is provided with the semicircular structure or the conical energy absorption groove which can absorb the impact waves, so that the structure can greatly absorb the energy generated by explosion and improve the pit explosion capability.
CN108680062A discloses a high-resistance bulletproof and antiknock composite structure and a manufacturing method thereof, belonging to the technical field of protective structures. The composite structure is formed by compounding a high-strength bulletproof penetration-resistant structural layer, a ductile anti-explosion structural layer and a special-shaped surface bulletproof plate, wherein the special-shaped surface bulletproof plate, the high-strength bulletproof penetration-resistant structural layer and the ductile anti-explosion structural layer are sequentially arranged; the high-strength bulletproof penetration-resistant structural layer consists of four parts, namely a penetration-resistant structural layer framework, a high-strength high-hardness penetration-resistant material, an impact dispersion energy absorption layer and a fine reinforcing mesh, wherein the penetration-resistant structural layer framework is made of a metal grid plate, a penetration-resistant structural layer panel and a penetration-resistant structural layer bottom plate; the ductile anti-explosion structure layer is formed by compounding a ductile anti-explosion structure framework and a polyurethane foam material filled in the ductile anti-explosion structure framework; the ductile antiknock structure framework is composed of an inner support lacing wire, a ductile antiknock structure panel and a ductile antiknock structure bottom plate, and spherical segments or hemispherical convex bodies which are arranged in a plum blossom shape are distributed on the surface of the special-shaped surface bulletproof plate.
The explosion vent is a protection device for a door opening of a shelter project or a structure, and the weakest link appears at the position of the protection door in the face of application of high and new technologies in modern weaponry in the prior stage. The bulletproof and antiknock composite structure in the prior art contains concrete or foam concrete and other materials, and has low resistance, easy deformation and heavy weight. The transportation and the installation are inconvenient, the door plate has huge volume and high requirement on the bearing capacity of the foundation, and in order to prevent the foundation settlement, especially the uneven settlement, the foundation construction difficulty of partial weak soil areas is increased, the construction period is prolonged, and the site selection of the ground protection engineering is limited to a certain extent. Once the door panel is under the action of high-strength shock waves, the opening device of the door is easy to deform under the action of the self weight of the door panel and the shock waves, so that the door cannot be opened; once the door panel is destroyed, the emergency repair and the emergency construction are extremely difficult, so that the access is blocked, and the normal opening and maintenance are influenced. According to the damage phenomenon and analysis of the explosion-proof door in the underground tunnel, the damage effect of the explosion-proof door is the result of the combined action of the fragments and the shock waves, the independent action of the fragments and the shock waves cannot cause such serious damage effect, the conditions that the fragments penetrate the explosion-proof door and the explosion-proof door form and damage under the independent action of the shock waves are considered in the design of the explosion-proof door, the combined damage action of the fragments and the shock waves on the explosion-proof door is emphasized, under the dual action of the fragments and the shock waves, the scattered materials can cause secondary splashing, and the damage to objects and personnel in the protection door can be caused to a certain degree.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a light high-anti-explosion unit plate aiming at the defects of the prior art, which has the characteristics of light weight, anti-explosion capability of each component and good integral anti-explosion effect.
The technical scheme adopted by the utility model is as follows.
A light high anti-knock unit plate comprises an outer metal plate layer, an inner metal plate layer, an energy absorbing layer and a foam metal plate layer which are arranged in parallel, wherein the energy absorbing layer comprises a plurality of energy absorbing layers, and each energy absorbing layer comprises a plurality of energy absorbing pipes which are arranged in parallel;
the energy absorbing tubes of the energy absorbing layers are filled with a first energy absorbing material, or,
second energy-absorbing materials are filled between the energy-absorbing tubes of the energy-absorbing layers, or,
the energy absorption tubes of the energy absorption layers are filled with first energy absorption materials, and second energy absorption materials are filled between the energy absorption tubes of the energy absorption layers;
two adjacent energy-absorbing layered energy-absorbing pipes are vertical to each other; an energy absorbing layer is arranged between the outer metal plate layer and the inner metal plate layer, and a foam metal plate layer is arranged between the inner metal plate layer and the outer metal plate layer; the outer surfaces of the outer metal plate layer, the middle metal plate layer, the inner metal plate layer, the energy absorption pipes and the foam metal plate layer are all sprayed with explosion-proof paint.
As a preferred technical scheme, the explosion-proof coating is polyurea.
As a preferred technical scheme, the outer metal plate layer and the inner metal plate layer are connected through a connecting piece; the outer surfaces of the connecting pieces are sprayed with explosion-proof paint;
the connecting pieces are a plurality of connecting screws, the outer metal plate layer is connected with the inner metal plate layer through a plurality of connecting screws penetrating through the foam metal plate layer and the energy absorbing layer, or,
the connecting piece is a frame, the outer metal plate layer, the middle metal plate layer, the inner metal plate layer, the energy absorbing layer and the foam metal plate layer are all arranged on the frame, or,
the connecting pieces are a plurality of clips, the outer metal plate layer and the inner metal plate layer are connected through the clips, or,
the connecting piece is a side plate, and the outer metal plate layer and the inner metal plate layer are connected with the side plate in a welding mode.
As a preferred technical scheme, the energy absorption pipe is a carbon fiber pipe or is made of a carbon fiber composite material, the carbon fiber composite material is a composite material taking resin as a matrix and taking carbon fiber as a reinforcement.
As a preferred technical scheme, the outer side surfaces of the outer metal plate layer, the inner metal plate layer, the energy absorbing layer and the foam metal plate layer are all planes, or,
the outer side surfaces of the outer metal plate layer, the middle metal plate layer, the inner metal plate layer, the energy absorbing layer and the foam metal plate layer are all curved surfaces, or,
the outer side surfaces of the outer metal plate layer, the middle metal plate layer, the inner metal plate layer, the energy absorbing layer and the foam metal plate layer are all folded surfaces.
Preferably, the first energy-absorbing material is rigid polyurethane foam, and the second energy-absorbing material is flexible polyurethane foam. The carbon fiber is a novel fiber material of high-tensile, high-strength and high-modulus fiber with the carbon content of more than 95 percent. Under the condition of the same strength, the material required by the carbon fiber is far lower than that required by the conventional protective door, so that the quality of the protective door can be greatly reduced. The carbon fiber has a high damping coefficient, can quickly stop shock wave vibration and absorb most energy. The carbon fiber has high axial strength and modulus, no creep, high temperature resistance in non-oxidation environment, good fatigue resistance, specific heat and conductivity between nonmetal and metal, good corrosion resistance, good conductive and heat-conducting performance and good electromagnetic shielding performance. The energy-absorbing pipe made of the carbon fiber composite material can avoid the defects that the energy-absorbing pipe made of the conventional material, such as the energy-absorbing pipe made of the metal material, is too hard, has insufficient energy absorption, is corrosion-resistant, ageing-resistant, high-temperature-resistant, has insufficient electromagnetic shielding and the like.
The hard polyurethane foam is a porous medium with low price, small density and easy molding, has better kinetic energy absorption characteristic, can slow down impact, weaken oscillation and reduce stress amplitude, the yield strength of the hard polyurethane foam is gradually increased along with the increase of strain rate in a certain range, and the hard polyurethane foam can achieve good anti-explosion effect by being combined with rigid layers (an outer metal plate layer, an inner metal plate layer and an inner metal plate layer). When the explosive equivalent is constant, the polyurethane foam can effectively absorb the energy of the explosion shock wave, reduce the stress of the protective door and reduce the rebound of the protective door. Flexible Polyurethane Foam (Polyurethane Foam for short) refers to a kind of Flexible Polyurethane Foam having a certain elasticity, which is a Polyurethane product with the largest usage amount. The product mainly comprises High Resilience Foam (HRF), block sponge, slow resilience foam, self-skinning foam (ISF), semi-rigid energy-absorbing foam and the like. The cell structure of the polyurethane flexible foam is mostly open-celled. Generally has the performances of low density, good elastic recovery, sound absorption, ventilation, heat preservation and the like, and is mainly used as furniture cushion materials, vehicle seat cushion materials and various soft liner laminated composite materials.
As a preferred technical scheme, the thickness of the foam metal plate layer is 3-6 times of that of the outer metal plate layer; the diameter of the energy absorption pipe is 3-5 times of the thickness of the outer metal plate layer; the thickness of the inner metal plate layer and the thickness of the inner metal plate layer are both smaller than that of the outer metal plate layer.
As a preferred technical scheme, the outer metal plate layer, the inner metal plate layer and the inner metal plate layer are metal plate layers made of steel. The foamed metal plate layer is made of foamed aluminum. Foamed aluminum is a metal material consisting of a small amount of aluminum metal skeleton and a large amount of bubbles, and has the characteristics of a continuous metal phase and a dispersed air phase. Firstly, the presence of bubbles gives them a high porosity; and secondly, the cable has the advantages of small density, strong impact absorption capacity, high temperature resistance, strong fireproof performance, corrosion resistance, sound insulation, noise reduction, low heat conductivity, high temperature resistance, high electromagnetic shielding performance and the like. The dynamic stress-strain curve of foamed aluminum has a "three-stage" characteristic; the absorption and dispersion of shock waves by foamed aluminium is mainly dependent on the viscous effect of the structure. The foamed aluminum is matched with the hard polyurethane foam and the soft polyurethane foam, so that the energy absorption is improved by more than 50 percent and the energy absorption efficiency is improved by more than 30 percent compared with the single use of polyurethane.
A protective product is formed by assembling a plurality of any one of the light high-antiknock unit plates through connecting workpieces.
As the preferred technical scheme, the protective product is formed by detachably assembling a plurality of light high-antiknock unit plates through connecting workpieces.
The utility model has the beneficial effects that:
1. the structure of the outer metal plate layer, the middle metal plate layer, the inner metal plate layer clamping energy absorption layer and the foam metal plate layer is arranged, and the hard framework is formed by the outer metal plate layer, the middle metal plate layer and the inner metal plate layer.
2. The side of the outer metal plate layer far away from the side of the inner metal plate layer is a detonation facing side. The side of the inner metal plate layer far away from the metal plate layer is a back explosion surface. The energy absorption layer is closer to the explosion-facing surface than the foam metal plate layer, the energy absorption layer comprises a plurality of energy absorption layers arranged by tubular materials, the energy absorption pipes of two adjacent energy absorption layers are mutually vertical, the longitudinal and transverse directions are enhanced, the structure that the energy absorption pipes are internally filled with first energy absorption materials is adopted, and compared with the structure that soft energy absorption materials are directly adopted, the energy absorption layer is easier to fix and has good energy absorption effect. The foam metal is matched with the first energy-absorbing material and the second energy-absorbing material for use, so that the energy absorption can be improved by more than 50% and the energy absorption efficiency can be improved by more than 30% compared with the single use of the first energy-absorbing material and the second energy-absorbing material, and the energy-absorbing material has good energy-absorbing effect and anti-flying sheet effect.
3. The outer metal plate layer coated with the explosion-proof coating bears the first wave impact of the shock wave, and the energy absorption tubes which are vertically and horizontally staggered after the shock wave is impacted and deformed carry out the first energy absorption; the metal plate layer coated with the anti-explosion coating bears the secondary impact of shock waves, the shock waves are weakened at the moment and need to be harder than the energy absorption of the foam metal plate layer of the energy absorption tube which is criss-cross, finally, the inner metal plate layer bears the energy of other shock waves finally, the flying sheets after the unit plates are cracked are prevented, and the progressive anti-impact structure is adopted, so that the energy absorption and the anti-explosion can be effectively realized. The metal plate layer is arranged on a rigid and flexible interface formed between the energy absorption layer and the foam metal plate layer, so that the impact resistance can be improved to the greatest extent.
4. High resistance, uneasy deformation, light weight and convenient installation. When the door plate is used as a door plate, the requirement on the bearing capacity of the foundation is low, the construction difficulty of the foundation in a part of weak soil areas is reduced, the construction period is shortened, and the site selection of the ground protection project is not limited.
5. The structure does not contain materials such as concrete or foam concrete, and the like, and is under the double actions of fragments and shock waves. All components are coated with explosion-proof coatings, so that the materials cannot splash, and objects and personnel in a protection range can be protected to a certain extent.
6. The outer surfaces of the metal plate layers, the energy absorption pipes, the foam metal plate layers and the connecting pieces are all sprayed with the explosion-proof coating, and the explosion-proof coating acts on each component of the explosion-proof plate, so that the integrity of each component of the explosion-proof plate when the explosion-proof plate is impacted is ensured, the explosion-proof effect is improved, the manufacturing cost is low, and the explosion-proof plate can be used as a shield of an explosion-proof door, an explosion-proof wall, an explosion-proof roof, an explosion-proof shield body, a large cylinder or pipeline, a guard plate of a wall body and the like.
Drawings
Fig. 1 is a front view of a preferred embodiment of the lightweight high antiknock element panel of the present invention.
Fig. 2 is a sectional view of the lightweight high antiknock unit panel shown in fig. 1 taken along a-a'.
Fig. 3 is a partially enlarged view of a portion C of fig. 2.
Fig. 4 is a sectional view of the lightweight high antiknock unit panel shown in fig. 1, taken along B-B'.
Fig. 5 is a partially enlarged view of a portion D of fig. 4.
Fig. 6 is a schematic structural view of a preferred embodiment of the lightweight high antiknock unit panel of the present invention.
Fig. 7 is a partially enlarged view of a portion E of fig. 6.
Fig. 8 is a schematic structural view of a preferred embodiment of the lightweight high antiknock unit panel of the present invention.
Fig. 9 is a partially enlarged view of a portion F of fig. 8.
Fig. 10 is a schematic structural view of a preferred embodiment of the lightweight high antiknock unit panel of the present invention.
Fig. 11 is a partially enlarged view of a portion G of fig. 10.
Fig. 12 is a schematic structural view of a preferred embodiment of the lightweight high antiknock unit panel of the present invention.
Fig. 13 is a partially enlarged view of a portion H of fig. 12.
Fig. 14 is a schematic structural view of a preferred embodiment of the lightweight high antiknock unit panel of the present invention.
Fig. 15 is a schematic view of the lightweight high antiknock unit panel of fig. 1 mounted on a frame.
Fig. 16 is a sectional view of the lightweight high antiknock unit panel along I-I' shown in fig. 15.
Fig. 17 is a schematic structural view of a preferred embodiment of the lightweight high antiknock unit panel of the present invention.
Fig. 18 is a partially enlarged view of a portion J of fig. 17.
Fig. 19 is a partially enlarged view of a portion K of fig. 17.
Fig. 20 is a schematic structural view of a preferred embodiment of the lightweight high antiknock unit panel of the present invention.
Fig. 21 is a schematic structural view of a preferred embodiment of the lightweight high antiknock unit panel of the present invention.
Fig. 22 is a partially enlarged view of a portion L of fig. 21.
Fig. 23 is a schematic structural view of a preferred embodiment of the lightweight high antiknock unit panel of the present invention.
Fig. 24 is a partially enlarged view of a portion M of fig. 23.
Fig. 25 is a schematic structural view of a preferred embodiment of the lightweight high antiknock unit panel of the present invention.
Fig. 26 is a partially enlarged view of a portion N of fig. 25.
Wherein: a frame-1; a connecting screw-11; a clip-12; -13 of a sideboard;
a cell plate-2;
inner sheet metal layer-31; middle metal sheet layer-32; outer sheet metal layer-33;
an energy absorbing layer-4; energy-absorbing layering-41; an energy absorbing tube-42;
a foamed metal sheet layer-5;
a first energy absorbing material-6; a second energy absorbing material-61.
Detailed Description
The utility model is further illustrated by the following figures and examples.
Example 1. As shown in fig. 1 to 5, the unit panel 2 includes an outer metal plate layer 33, an inner metal plate layer 32, an inner metal plate layer 31, an energy absorbing layer 4, and a foam metal plate layer 5, which are arranged in parallel, wherein the energy absorbing layer 4 includes a plurality of energy absorbing layers 41, and each energy absorbing layer 41 includes a plurality of energy absorbing tubes 42 arranged in parallel;
the energy absorbing tubes 42 of each energy absorbing layer 41 are filled with the first energy absorbing material 6.
The energy-absorbing pipes 42 of two adjacent energy-absorbing layers 41 are vertical to each other; an energy absorbing layer 4 is arranged between the outer metal plate layer 33 and the inner metal plate layer 32, and a foam metal plate layer 5 is arranged between the inner metal plate layer 31 and the inner metal plate layer 32; the outer surfaces of the outer metal plate layer 33, the inner metal plate layer 32, the inner metal plate layer 31, the energy absorption pipes 42 and the foam metal plate layer 35 are all sprayed with explosion-proof paint. The damping energy absorption device is made of one of butyl, acrylate, polysulfide, butyronitrile, silicon rubber, polyurethane, polyvinyl chloride, epoxy resin, butyl rubber and polyurethane or a book.
The explosion-proof coating is polyurea. Polyurea is an elastomeric material formed by the reaction of an isocyanate component and an amino compound component.
The outer metal plate layer 33 and the inner metal plate layer 31 are connected through a connecting piece; the outer surface of the connecting piece is sprayed with explosion-proof paint.
The connecting piece is a plurality of connecting screws 11, the outer metal plate layer 33 is connected with the inner metal plate layer 31 through a plurality of connecting screws 11 penetrating through the foam metal plate layer 5 and the energy absorption layer 4, and the energy absorption pipe 42 is a carbon fiber pipe.
The energy absorbing tube 42 is made of a carbon fiber composite material, which is a composite material with a resin as a matrix and a carbon fiber as a reinforcement. The carbon fiber is a novel fiber material of high-tensile, high-strength and high-modulus fiber with the carbon content of more than 95 percent. Under the condition of the same strength, the material required by the carbon fiber is far lower than that required by the conventional protective door, so that the quality of the protective door can be greatly reduced. The carbon fiber has a high damping coefficient, can quickly stop shock wave vibration and absorb most energy. The carbon fiber has high axial strength and modulus, no creep, high temperature resistance in non-oxidation environment, good fatigue resistance, specific heat and conductivity between nonmetal and metal, good corrosion resistance, good conductive and heat-conducting performance and good electromagnetic shielding performance. The energy-absorbing pipe made of the carbon fiber composite material can avoid the defects that the energy-absorbing pipe made of the conventional material, such as the energy-absorbing pipe made of the metal material, is too hard, has insufficient energy absorption, is corrosion-resistant, ageing-resistant, high-temperature-resistant, has insufficient electromagnetic shielding and the like.
The first energy absorbing material 6 is a rigid polyurethane foam. The hard polyurethane foam is a porous medium with low price, small density and easy molding, has better kinetic energy absorption characteristic, can slow down impact, weaken oscillation and reduce stress amplitude, the yield strength of the hard polyurethane foam is gradually increased along with the increase of strain rate in a certain range, and the hard polyurethane foam can achieve good anti-explosion effect by being combined with a rigid outer metal plate layer, a rigid inner metal plate layer and a rigid inner metal plate layer. When the explosive equivalent is constant, the polyurethane foam can effectively absorb the energy of the explosion shock wave, reduce the stress of the protective door and reduce the rebound of the protective door.
The foamed metal plate layer is a foamed metal plate layer 5 made of foamed aluminum. Foamed aluminum is a metal material consisting of a small amount of aluminum metal skeleton and a large amount of bubbles, and has the characteristics of a continuous metal phase and a dispersed air phase. Firstly, the presence of bubbles gives them a high porosity; and secondly, the cable has the advantages of small density, strong impact absorption capacity, high temperature resistance, strong fireproof performance, corrosion resistance, sound insulation, noise reduction, low heat conductivity, high temperature resistance, high electromagnetic shielding performance and the like. The dynamic stress-strain curve of foamed aluminum has a "three-stage" characteristic; the absorption and dispersion of shock waves by foamed aluminium is mainly dependent on the viscous effect of the structure. The foamed aluminum is matched with the hard polyurethane foam and the soft polyurethane foam, so that the energy absorption is improved by more than 50 percent and the energy absorption efficiency is improved by more than 30 percent compared with the single use of polyurethane.
The outer side surfaces of the middle metal plate layer 32, the inner metal plate layer 31, the energy absorbing layer 4 and the foam metal plate layer 5 are all planes.
The thickness of the foamed metal sheet layer 5 is 4 times the thickness of the outer metal sheet layer 33. The outer sheet metal layer 33 is 15mm thick.
The diameter of the energy absorbing tube 42 is 5 times the thickness of the sheet metal layer 3.
The thickness of the middle metal plate layer 32 and the thickness of the inner metal plate layer 31 are both 5 mm.
Each sheet metal layer 3 is a sheet metal layer 3 made of steel.
The surface density of the frame strip of the light high antiknock unit board is 400kg/m2. The test can resist the damage of the fragment and the shock wave of 1000 pounds MK83 explosion at a distance of 5m from the door. The fragments can be used as an assessment test index according to a 54-type 12.7mm armor piercing bomb at a position of 30m, and the shock waves are exploded on the ground at a distance of 1.4m from a protective door according to an explosion similarity rate standard according to 10kg TNT, which is equivalent to the overpressure of the explosion shock waves of a 1000-pound MK83 aerobomb.
The advantages of this embodiment are as follows: 1. the structure that the outer metal plate layer 33, the middle metal plate layer 32 and the inner metal plate layer 31 sandwich the energy absorbing layer 4 and the foam metal plate layer 5 is arranged, and the outer metal plate layer 33, the middle metal plate layer 32 and the inner metal plate layer 31 form a hard framework.
2. The side of the outer metal plate layer far away from the side of the inner metal plate layer is a detonation facing side. The side of the inner metal plate layer far away from the metal plate layer is a back explosion surface. The energy absorption layer 4 is closer to the explosion-facing surface than the foam metal plate layer 5, the energy absorption layer 4 comprises a plurality of energy absorption layers 41 which are arranged by tubular materials, the energy absorption tubes 4242 of two adjacent energy absorption layers 41 are mutually vertical, the longitudinal and transverse directions are all strengthened, the energy absorption tubes 42 are filled with the first energy absorption material 6, and compared with the structure which directly adopts soft energy absorption materials, the energy absorption layer is easier to fix and has good energy absorption effect. The foam metal is matched with the first energy-absorbing material 6 and the second energy-absorbing material 61 for use, so that the energy absorption can be improved by more than 50% compared with the energy absorption of the first energy-absorbing material 6 and the second energy-absorbing material 61 which are used independently, the energy absorption efficiency is improved by more than 30%, and the foam metal has good energy absorption effect and anti-flying sheet effect.
3. The outer metal plate layer 33 coated with the explosion-proof coating bears the first wave impact of the shock wave, and the energy absorption tubes 42 which are criss-cross after the impact deformation carry out the first energy absorption; the metal plate layer 32 coated with the anti-explosion coating bears the secondary impact of shock waves, the shock waves are weakened at the moment and need to be harder than the energy absorption of the foam metal plate layer 5 of the energy absorption tube 42 which is criss-cross, and finally, the inner metal plate layer 31 bears the energy of other shock waves finally, so that the flying sheets after the unit plates are cracked are prevented, and the progressive anti-impact structure is adopted, so that the energy absorption and the anti-explosion can be effectively realized. The middle metal plate layer 32 is arranged on the interface formed between the energy absorbing layer 4 and the foam metal plate layer 5 and has rigidity and flexibility, and the impact resistance can be improved to the maximum extent.
4. The structure has the advantages of high resistance, difficult deformation, no concrete or foam concrete contained in the structure, light weight and convenient transportation and installation. When the door plate is used as a door plate, the requirement on the bearing capacity of the foundation is low, the construction difficulty of the foundation in a part of weak soil areas is reduced, the construction period is shortened, and the site selection of the ground protection project is not limited.
5. The structure does not contain materials such as concrete or foam concrete, and the like, and is under the double actions of fragments and shock waves. All components are coated with explosion-proof coatings, so that the materials cannot splash, and objects and personnel in a protection range can be protected to a certain extent.
6. The outer surfaces of the metal plate layers, the energy absorption tubes 42, the foam metal plate layers 5 and the connecting pieces are all sprayed with the explosion-proof coating, and the explosion-proof coating acts on each component of the explosion-proof plate, so that the integrity of each component of the explosion-proof plate when the explosion-proof plate is impacted is ensured, the explosion-proof effect is improved, the manufacturing cost is low, and the explosion-proof plate can be used as an explosion-proof door, an explosion-proof wall, an explosion-proof roof, an explosion-proof shield body, a shield of a large cylinder or pipeline, a guard plate of a wall body and the like.
The present embodiment provides the structure of the outer metal plate layer 33, the middle metal plate layer 32, the inner metal plate layer 31 sandwiching the energy absorbing layer 4, and the foam metal plate layer 5, and the outer metal plate layer 33, the middle metal plate layer 32, and the inner metal plate layer 31 constitute a hard skeleton. The energy absorption layer 4 is closer to the explosion-facing surface than the foam metal plate layer 5, the energy absorption layer 4 comprises a plurality of energy absorption layers 41 which are arranged by tubular materials and are vertically and horizontally combined, and the energy absorption pipe 42 is a flexible reinforcing rib compared with the first energy absorption material and the second energy absorption material. The foam metal is matched with the first energy-absorbing material and the second energy-absorbing material for use, so that the energy absorption can be improved by more than 50% and the energy absorption efficiency can be improved by more than 30% compared with the single use of the first energy-absorbing material and the second energy-absorbing material, and the energy-absorbing material has good energy-absorbing effect and anti-flying sheet effect. The outer side surface of the outer metal plate layer 33 is an anti-explosion surface, and the inner side surface of the inner metal plate layer 31 is a back-explosion surface. The structure does not contain materials such as concrete or foam concrete, and the like, has high resistance, is not easy to deform and has small weight.
A protective product is assembled by a plurality of any unit plates provided by the scheme of the embodiment. The construction method has the advantages of convenient transportation and installation, low requirement on the bearing capacity of the foundation, reduction of the construction difficulty of the foundation in a part of weak soil areas, shortening of the construction period and no limitation of site selection of ground protection projects. The emergency repair and the emergency construction are convenient. Under the dual action of fragments and shock waves, because each component is coated with the explosion-proof coating, the material can not cause splashing, and can cause the protective action of a certain degree to objects and personnel in the protective product.
Example 2. As shown in fig. 6 to 7, the present embodiment is different from embodiment 1 in that: the energy-absorbing tubes 42 of each energy-absorbing laminate 41 are filled with a second energy-absorbing material 61.
Example 3. As shown in fig. 8 to 9, the present embodiment is different from embodiment 2 in that: the energy absorbing tubes 42 of each energy absorbing laminate 41 are not filled with the first energy absorbing material. The energy-absorbing tubes 42 of each energy-absorbing laminate 41 are filled with a second energy-absorbing material 61.
Example 4. As shown in fig. 10 to 11, the present embodiment is different from embodiment 1 in that: the energy-absorbing layer 4 comprises two energy-absorbing sublayers 41.
Example 5. As shown in fig. 12 to 13, the present embodiment is different from embodiment 1 in that: the energy absorbing layer 4 comprises four energy absorbing sublayers 41.
Example 6. As shown in fig. 14, the present embodiment is different from embodiment 1 in that: the diameter of the energy absorbing tube 42 is 6 times the thickness of the outer sheet metal layer 33. The length and width of the unit plate in FIG. 14 are omitted.
Example 7. As shown in fig. 15 to 16, the present embodiment is different from embodiment 1 in that: the diameter of the energy absorbing tube 42 is 6 times the thickness of the outer sheet metal layer 33. The connecting piece is a frame 1, each metal plate layer 3, each energy absorption layer 4 and each foam metal plate layer 5 are all arranged on the frame 1, and the outer surfaces of each metal plate layer 3, each energy absorption pipe 42, each foam metal plate layer 5 and the frame 1 are all sprayed with explosion-proof paint.
Example 8. As shown in fig. 17 to 19, the present embodiment is different from embodiment 1 in that: the connecting pieces are a plurality of clips 12, and the outer metal plate layer 33 is connected with the inner metal plate layer 31 through the clips 12.
Example 9. As shown in fig. 20, the present embodiment is different from embodiment 8 in that: the connecting piece is the side plate 13, and the outer metal plate layer 33 and the inner metal plate layer 31 are connected with the side plate 13 in a welding mode.
Example 10. As shown in fig. 21 to 22, the present embodiment is different from embodiment 1 in that: the outer side surfaces of the outer metal plate layer 33, the inner metal plate layer 32, the inner metal plate layer 31, the energy absorbing layer 4 and the foam metal plate layer 5 are all folded surfaces.
Example 11. As shown in fig. 23 to 24, the present embodiment is different from embodiment 1 in that: the outer side surfaces of the outer metal plate layer 33, the inner metal plate layer 32, the inner metal plate layer 31, the energy absorbing layer 4 and the foam metal plate layer 5 are all folded surfaces.
Example 12. As shown in fig. 25 to 26, the present embodiment is different from embodiment 1 in that: the outer side surfaces of the outer metal plate layer 33, the inner metal plate layer 32, the inner metal plate layer 31, the energy absorbing layer 4 and the foam metal plate layer 5 are curved surfaces.
Claims (10)
1. The utility model provides a high antiknock unit board of light which characterized in that: the unit plate (2) comprises an outer metal plate layer (33), an inner metal plate layer (32), an inner metal plate layer (31), an energy absorption layer (4) and a foam metal plate layer (5) which are arranged in parallel, the energy absorption layer (4) comprises a plurality of energy absorption layers (41), and each energy absorption layer (41) comprises a plurality of energy absorption pipes (42) which are arranged in parallel;
the energy-absorbing tubes (42) of each energy-absorbing layer (41) are filled with a first energy-absorbing material (6), or,
second energy-absorbing materials (61) are filled between the energy-absorbing pipes (42) of each energy-absorbing layer (41), or,
the energy absorption tubes (42) of the energy absorption layers (41) are filled with first energy absorption materials (6), and second energy absorption materials (61) are filled between the energy absorption tubes (42) of the energy absorption layers (41);
the energy absorption pipes (42) of two adjacent energy absorption layers (41) are vertical to each other; an energy absorbing layer (4) is arranged between the outer metal plate layer (33) and the inner metal plate layer (32), and a foam metal plate layer (5) is arranged between the inner metal plate layer (31) and the inner metal plate layer (32); the outer surfaces of the outer metal plate layer (33), the inner metal plate layer (32), the inner metal plate layer (31), the energy absorption pipes (42) and the foam metal plate layer (5) are all sprayed with explosion-proof paint.
2. The lightweight high antiknock cellular panel of claim 1, wherein: the explosion-proof coating is polyurea.
3. The lightweight high antiknock cellular panel of claim 1, wherein: the outer metal plate layer (33) and the inner metal plate layer (31) are connected through a connecting piece; the outer surfaces of the connecting pieces are sprayed with explosion-proof paint;
the connecting pieces are a plurality of connecting screws (11), the outer metal plate layer (33) is connected with the inner metal plate layer (31) through a plurality of connecting screws (11) penetrating through the foam metal plate layer (5) and the energy absorbing layer (4), or,
the connecting piece is a frame (1), the outer metal plate layer (33), the middle metal plate layer (32), the inner metal plate layer (31), the energy absorbing layer (4) and the foam metal plate layer (5) are all arranged on the frame (1), or,
the connecting pieces are a plurality of clips (12), the outer metal plate layer (33) and the inner metal plate layer (31) are connected through the clips (12), or,
the connecting piece is a side plate (13), and the outer metal plate layer (33), the inner metal plate layer (31) and the side plate (13) are connected in a welding mode.
4. A lightweight high antiknock cellular panel according to claim 1, further including: the energy absorption pipe (42) is a carbon fiber pipe or the energy absorption pipe (42) is made of carbon fiber composite materials, wherein the carbon fiber composite materials are composite materials which take resin as a matrix and take carbon fibers as reinforcements.
5. The lightweight high antiknock cellular panel of claim 1, wherein: the outer side surfaces of the outer metal plate layer (33), the inner metal plate layer (32), the inner metal plate layer (31), the energy absorbing layer (4) and the foam metal plate layer (5) are all planes, or,
the outer side surfaces of the outer metal plate layer (33), the inner metal plate layer (32), the inner metal plate layer (31), the energy absorbing layer (4) and the foam metal plate layer (5) are all curved surfaces, or,
the outer side surfaces of the outer metal plate layer (33), the inner metal plate layer (32), the inner metal plate layer (31), the energy absorbing layer (4) and the foam metal plate layer (5) are folding surfaces.
6. The lightweight high antiknock cellular panel of claim 5, wherein: the first energy-absorbing material (6) is rigid polyurethane foam, and the second energy-absorbing material (61) is flexible polyurethane foam.
7. The lightweight high antiknock cellular panel of claim 1, wherein: the thickness of the foam metal plate layer (5) is 3-6 times of that of the outer metal plate layer (33); the diameter of the energy absorption pipe (42) is 3-5 times of the thickness of the outer metal plate layer (33); the thickness of the inner metal plate layer (32) and the thickness of the inner metal plate layer (31) are both smaller than the thickness of the outer metal plate layer (33).
8. The lightweight high antiknock cellular panel of claim 1, wherein: the outer metal plate layer (33), the inner metal plate layer (32) and the inner metal plate layer (31) are metal plate layers (3) made of steel; the foamed metal plate layer (5) is a foamed metal plate layer (5) made of foamed aluminum.
9. A protective product characterized by: the protective product is assembled by connecting workpieces through a plurality of light-weight high-antiknock unit plates according to claim 1.
10. The protective product of claim 9, wherein: the protective product is formed by detachably assembling a plurality of light high-antiknock unit plates through connecting workpieces.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120375350.1U CN215483740U (en) | 2021-02-19 | 2021-02-19 | Light high-antiknock unit board and protection product thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120375350.1U CN215483740U (en) | 2021-02-19 | 2021-02-19 | Light high-antiknock unit board and protection product thereof |
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| Publication Number | Publication Date |
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| CN215483740U true CN215483740U (en) | 2022-01-11 |
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| CN202120375350.1U Active CN215483740U (en) | 2021-02-19 | 2021-02-19 | Light high-antiknock unit board and protection product thereof |
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| Country | Link |
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| CN (1) | CN215483740U (en) |
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- 2021-02-19 CN CN202120375350.1U patent/CN215483740U/en active Active
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Address after: 030006 4th floor, block a, qingkong innovation base, No. 529, South Zhonghuan street, Taiyuan Xuefu Park, comprehensive reform demonstration zone, Taiyuan City, Shanxi Province Patentee after: Jindun protection (Shanxi) Technology Co.,Ltd. Patentee after: Shanghai Shangqin High Pressure Grouting Technology Co., Ltd Address before: 030006 station 300, Zhongchuang space, QingChuang company, No. 529, South Central Street, Taiyuan Xuefu Park, Shanxi comprehensive reform demonstration zone, Taiyuan City, Shanxi Province Patentee before: SHANXI POLYUREA PROTECTIVE MATERIAL Co.,Ltd. Patentee before: Shanghai Shangqin High Pressure Grouting Technology Co., Ltd |
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