CN112832623A - Frame strip of anti-explosion door or anti-explosion window - Google Patents

Frame strip of anti-explosion door or anti-explosion window Download PDF

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Publication number
CN112832623A
CN112832623A CN202110188153.3A CN202110188153A CN112832623A CN 112832623 A CN112832623 A CN 112832623A CN 202110188153 A CN202110188153 A CN 202110188153A CN 112832623 A CN112832623 A CN 112832623A
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CN
China
Prior art keywords
energy
energy absorption
plate layer
explosion
frame strip
Prior art date
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Pending
Application number
CN202110188153.3A
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Chinese (zh)
Inventor
张吴雷
张国天
张雅珍
吴伟楠
袁吉强
刘玉军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Shangqin High Pressure Grouting Technology Co ltd
Shanxi Polyurea Protective Material Co ltd
Original Assignee
Shanghai Shangqin High Pressure Grouting Technology Co ltd
Shanxi Polyurea Protective Material Co ltd
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Publication date
Application filed by Shanghai Shangqin High Pressure Grouting Technology Co ltd, Shanxi Polyurea Protective Material Co ltd filed Critical Shanghai Shangqin High Pressure Grouting Technology Co ltd
Priority to CN202110188153.3A priority Critical patent/CN112832623A/en
Publication of CN112832623A publication Critical patent/CN112832623A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/04—Wing frames not characterised by the manner of movement
    • E06B3/06—Single frames
    • E06B3/08—Constructions depending on the use of specified materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B32B3/20—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side of hollow pieces, e.g. tubes; of pieces with channels or cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/03—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers with respect to the orientation of features
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/12—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against air pressure, explosion, or gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/06—Coating on the layer surface on metal layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness

Abstract

The invention discloses a frame strip of an anti-explosion door or an anti-explosion window, which comprises a frame strip body, wherein a cavity with a rectangular section is arranged in the frame strip body, a composition board is arranged in the cavity, the composition board comprises an energy absorption layer, a steel plate layer and a foam metal plate layer, the energy absorption layer comprises a plurality of energy absorption layers, and each energy absorption layer comprises a plurality of energy absorption pipes which are arranged in parallel; two adjacent energy-absorbing layered energy-absorbing pipes are vertical to each other; the energy absorption layer is positioned in front of the steel plate layer, and the foam metal plate layer is positioned behind the steel plate layer; the surfaces of the frame strip body, the energy absorption pipe, the steel plate layer and the foam metal plate layer are coated with an anti-explosion coating. The frame body strip is light in weight, good in anti-explosion performance and convenient to transport and install.

Description

Frame strip of anti-explosion door or anti-explosion window
Technical Field
The invention relates to a frame strip of an anti-explosion door or an anti-explosion window, belonging to the technical field of civil anti-explosion construction and anti-explosion engineering.
Background
The perfect civil defense engineering is an important means for improving the survival ability and preserving the war strength of the country. The prior civil defense engineering is not fully considered in the aspect of simultaneously having dual functions of air defense and disaster resistance, and particularly, an anti-explosion door frame or a window frame in the civil defense engineering is complex in construction structure and is not beneficial to meeting the requirement of 'peacetime and war time combination'.
The patent with publication number CN202227878U discloses a civil air defense engineering peacetime and war combination anti-explosion door frame, and belongs to the technical field of civil air defense construction engineering. The door frame comprises a reinforced concrete outer frame and a metal inner frame lined in the reinforced concrete outer frame, wherein embedded steel bars and epitaxial steel bars are distributed in the reinforced concrete outer frame at intervals; the embedded steel bars are in a 7-shaped shape with the outer ends bent, and the long edges of the embedded steel bars are perpendicular to the metal inner frame; the inner end of the extension reinforcing steel bar is welded with the embedded reinforcing steel bar in parallel, and the outer end of the extension reinforcing steel bar is provided with a hook head. Adopt the utility model discloses a structure has not only obtained the sufficient intensity of antiknock door frame with simple reasonable structure, is convenient for construct moreover, easily reliably combines with the help of epitaxial reinforcing bar and wall on every side to establish the basis for the construction policy that realizes "peacetime combines". But the structure of the concrete-filled steel plate contains concrete and other bulk materials, and has low resistance, easy deformation and heavy weight. Discrete materials such as concrete are easy to crack and splash in the process of suffering from explosion shock waves, and objects and personnel to be protected may be damaged to a certain extent. It is heavy and inconvenient to transport and install. Especially for concealed engineering, because the door plate of the anti-explosion door has large volume and the requirement of the door frame on the bearing capacity of the foundation is high, in order to prevent foundation settlement, especially uneven settlement, the foundation construction difficulty of partial areas with weak soil quality is increased, the construction period is prolonged, and the site selection of civil house engineering is limited to a certain extent.
Disclosure of Invention
The invention aims to provide a frame body strip of an anti-explosion door or an anti-explosion window, aiming at the defects of the prior art and solving the problems of heavy weight and inconvenient transportation and installation of an anti-explosion door frame or a window frame in the prior art.
The technical scheme adopted by the invention is as follows.
The utility model provides a framework strip of blast resistant door or blast resistant window, includes steel framework strip body, this internal cross-section that is equipped with of framework strip is rectangular cavity, be equipped with the compoboard in the cavity, the compoboard includes energy absorbing layer, steel deck, foamed metal sheet layer.
The energy absorption layer comprises a plurality of energy absorption layers, and each energy absorption layer comprises a plurality of energy absorption 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; the energy absorption layer is positioned in front of the steel plate layer, and the foam metal plate layer is positioned behind the steel plate layer;
the surfaces of the frame strip body, the energy absorption pipe, the steel plate layer and the foam metal plate layer are coated with an anti-explosion coating.
As a preferred technical scheme, the anti-explosion coating is polyurea. Polyurea is an elastomeric material formed by the reaction of an isocyanate component and an amino compound component.
According to a preferable technical scheme, the first energy-absorbing material and the second energy-absorbing material are one or more of ethylene-vinyl acetate copolymer, rubber, latex, polyurethane, sponge and polystyrene foam. The rigid 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 rigid polyurethane foam is gradually increased along with the increase of strain rate in a certain range, and the rigid polyurethane foam can achieve good anti-explosion effect by being combined with a rigid layer (three metal plate layers). 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.
Preferably, the first energy-absorbing material is rigid polyurethane foam, and the second energy-absorbing material is flexible polyurethane foam.
As a preferred technical scheme, the energy absorption pipe is made of carbon fibers or steel fibers or polypropylene fibers.
As a preferred technical scheme, the energy absorption pipe is formed by compounding carbon fibers or steel fibers or polypropylene fibers with resin.
As a preferred technical scheme, the foam metal plate layer is made of foam 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.
As a preferred technical scheme, the thickness of the foam metal plate layer is greater than that of the steel plate layer; the diameter of the energy absorption pipe is larger than the thickness of the steel plate layer.
As preferred technical scheme, the medial surface of frame strip body is equipped with the mounting groove.
Preferably, the thickness of the front side surface of the frame strip body is not less than the thickness of the steel plate layer.
The beneficial effects of the invention are as follows.
1. The combined plate is arranged in the cavity of the frame strip body and comprises an energy absorption layer, a steel plate layer and a foam metal plate layer, and the frame strip body and the steel plate layer form a hard framework with good structural rigidity.
2. 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 which are arranged by tubular materials and are combined vertically and horizontally, the energy absorption tube is filled with a first energy absorption material, and compared with a structure that the first energy absorption material is directly filled, 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 front side surface of the frame strip body 1 is an explosion-facing surface. The front side surface of the frame strip body 1 is a back explosion surface. The explosion-facing surface coated with the anti-explosion coating bears the first wave impact of the shock wave, and the energy absorption tubes which are vertically and horizontally staggered after the impact deformation of the explosion-facing surface carry out the first energy absorption; the steel plate layer coated with the anti-explosion coating bears the secondary impact of shock waves, the shock waves are weakened at the moment, the hardness of the steel plate layer is larger than that of the foam metal plate layer of the criss-cross energy absorption pipe, finally, the back explosion surface coated with the anti-explosion coating bears the energy of other shock waves, and a progressive shock-resistant structure is adopted, so that the energy can be effectively absorbed and the anti-explosion can be effectively realized.
4. High resistance, uneasy deformation, light weight and convenient transportation and installation. When the door frame is used as a door frame, 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, under the dual action of fragments and shock waves, the steel plate layer coated with the anti-explosion coating and the frame body are protected by two layers, the specific gravity of the energy-absorbing material is far smaller than that of the concrete, flying fragments which appear after the energy-absorbing material is cracked can be effectively blocked, and objects and personnel in a protection range can be protected to a certain degree.
6. The steel plate layer, each energy-absorbing pipe, the foam metal plate layer and the outer surface of the frame strip body are coated with the anti-explosion coating, and the anti-explosion coating acts on each component, so that the integrity of each component when impacted is ensured, the anti-explosion effect is improved, and the manufacturing cost is lower.
7. The steel plate layer is arranged on a rigid-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, and when the door or window made of the steel plate layer is impacted by shock waves, the deformation of the door or window is small, and the door or window frame is prevented from being not opened, so that the escape of personnel or equipment and the entrance and exit of goods are influenced.
Drawings
Fig. 1 is a schematic view of a window structure using the frame strip body of the present invention.
Fig. 2 is a partially enlarged view of a portion B of fig. 1.
Fig. 3 is a cross-sectional view taken along line a-a' of fig. 1.
Fig. 4 is a partially enlarged view of a portion C of fig. 3.
Fig. 5 is a schematic structural view of a preferred embodiment of the frame strip body of the present invention.
Fig. 6 is a partially enlarged view of a portion D of fig. 5.
Fig. 7 is a schematic structural view of a preferred embodiment of the frame strip body of the present invention.
Fig. 8 is a partially enlarged view of a portion E of fig. 7.
Fig. 9 is a schematic structural view of a preferred embodiment of the frame strip body of the present invention.
Fig. 10 is a partially enlarged view of a portion F of fig. 9.
Fig. 11 is a schematic structural view of a preferred embodiment of the frame strip body of the present invention.
Fig. 12 is a partially enlarged view of a portion G of fig. 11.
Fig. 13 is a schematic view of a door using the frame strip body of the present invention.
Wherein: a frame strip body-1; energy-absorbing layering-2; a steel deck-3; a foamed metal sheet layer-4; an energy absorption pipe-5; a first energy absorbing material-6; a second energy absorbing material-7; mounting groove-8; antiknock glass-9; an anti-knock door panel-10.
Detailed Description
The invention is further illustrated by the following figures and examples.
Example 1. As shown in fig. 1 to 4, a frame strip of an anti-knock window comprises a steel frame strip body 1, a cavity with a rectangular cross section is arranged in the frame strip body 1, a composition board is arranged in the cavity, and the composition board comprises an energy absorption layer, a steel plate layer 3 and a foam metal plate layer 4. The antiknock window comprises a four-frame strip body 1 and antiknock glass 9. The inner side surface of the frame strip body 1 is provided with a mounting groove 8. The installation groove 8 is provided with the antiknock glass 9. The four frame body strip bodies 1 are sequentially connected end to form a window frame.
The energy absorption layer comprises three energy absorption layers 2, and each energy absorption layer 2 comprises a plurality of energy absorption pipes 5 which are arranged in parallel;
the energy absorbing tubes 5 of each energy absorbing layer 2 are filled with a first energy absorbing material 6.
The energy absorption pipes 5 of two adjacent energy absorption layers 2 are vertical to each other; the energy absorption layer is positioned in front of the steel plate layer 3, and the foam metal plate layer 4 is positioned behind the steel plate layer 3;
the surfaces of the frame strip body 1, the energy absorption pipe 5, the steel plate layer 3 and the foam metal plate layer 4 are coated with anti-explosion coatings.
The antiknock coating is polyurea.
The first energy absorbing material 6 is a rigid polyurethane foam.
The energy absorption pipe 5 is made of carbon fiber. 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 foamed metal sheet layer 4 is a foamed metal sheet layer 4 made of foamed aluminum.
The thickness of the foam metal plate layer 4 is larger than that of the steel plate layer 3; the diameter of the energy absorption pipe 5 is larger than the thickness of the steel plate layer 3. The frame strip body 1 is strip-shaped.
The thickness of the front side surface of the frame strip body 1 is not less than that of the steel plate layer 3.
The thickness of the foam metal plate layer is 3-6 times of that of each side of the frame strip body; the diameter of the energy absorption pipe is 3-5 times of the thickness of each side of the frame strip body. The distance between the front side and the rear side of the frame strip body is 450 mm. The surface density of the frame strip 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 cavity of the frame strip body 1 is internally provided with a composition board which comprises an energy absorption layer, a steel plate layer 3 and a foam metal plate layer 4, and the frame strip body 1 and the steel plate layer 3 form a hard framework with good structural rigidity.
2. The energy absorption layer is closer to the explosion-facing surface than the foam metal plate layer 4, the energy absorption layer comprises a plurality of energy absorption layers 2 which are arranged by tubular materials, and the energy absorption tube is filled with the first energy absorption material 6. The foam metal is matched with the first energy-absorbing material 6 and the second energy-absorbing material 7 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 6 and the second energy-absorbing material 7, and the foam metal has good energy absorption effect and flying-resistant effect.
3. The front side surface of the frame strip body 1 is an explosion-facing surface. The front side surface of the frame strip body 1 is a back explosion surface. The explosion-facing surface coated with the anti-explosion coating bears the first wave impact of the shock wave, and the energy absorption tubes which are vertically and horizontally staggered after the impact deformation of the explosion-facing surface carry out the first energy absorption; the steel plate layer 3 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 more than the energy absorption of the foam metal plate layer 4 of the energy absorption pipe which is criss-cross in hardness, and finally, the back explosion surface coated with the anti-explosion coating bears the energy of other shock waves at last, and a progressive anti-impact structure is adopted, so that the energy absorption and the anti-explosion can be effectively realized.
4. High resistance, difficult deformation, no concrete, light weight and convenient transportation and installation. When the door frame is used as a door frame, 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, under the dual action of fragment and shock wave, the steel plate layer 3 coated with the anti-explosion coating and the frame body 1 are protected by two layers, and the specific gravity of the energy-absorbing material is far smaller than that of the concrete, so that flying fragments generated after the energy-absorbing material is cracked can be effectively blocked, and a certain degree of protection effect can be caused on objects and personnel in a protection range.
6. The steel plate layer 3, each energy-absorbing pipe, the foam metal plate layer 4 and the outer surface of the frame strip body are all sprayed with anti-explosion coatings, and the anti-explosion coatings act on each component, so that the integrity of each component when impacted is ensured, the anti-explosion effect is improved, and the manufacturing cost is low.
7. The steel plate layer 3 is arranged on a rigid-flexible interface formed between the energy absorption layer and the foam metal plate layer 4, so that the impact resistance can be improved to the greatest extent, and when the door or window made of the steel plate layer is impacted by shock waves, the deformation of the door or window is small, and the door or window frame is prevented from being opened, so that the escape of personnel or equipment and the entry and exit of materials are influenced.
Example 2. As shown in fig. 5 to 6, the present embodiment is different from embodiment 1 in that: the energy absorbing layer comprises four energy absorbing layers 2.
Example 3. As shown in fig. 7 to 8, the present embodiment is different from embodiment 1 in that: and second energy-absorbing materials 7 are filled between the energy-absorbing pipes 5 of the energy-absorbing layers 2. The energy absorbing layer comprises two energy absorbing sub-layers 2. The second energy absorbing material 7 is a flexible polyurethane foam.
Example 4. As shown in fig. 9 to 10, the present embodiment is different from embodiment 1 in that: and second energy-absorbing materials 7 are filled between the energy-absorbing pipes 5 of the energy-absorbing layers 2. The energy absorbing tubes 5 of each energy absorbing layer 2 are filled with no first energy absorbing material.
Example 5. As shown in fig. 11 to 12, the present embodiment is different from embodiment 1 in that: and second energy-absorbing materials 7 are filled between the energy-absorbing pipes 5 of the energy-absorbing layers 2. The energy absorbing layer comprises four energy absorbing layers 2.
Example 6. As shown in fig. 13, the present embodiment is different from embodiment 1 in that: the four frame body strip bodies 1 are sequentially connected end to form the door frame. An anti-explosion door plate 10 is arranged on the mounting groove 8.
Example 7. This example differs from example 5 in that: the first energy absorbing material 6 is ethylene-vinyl acetate copolymer and the second energy absorbing material 7 is latex.
Example 8. This example differs from example 5 in that: the first energy absorbing material 6 is polystyrene foam and the second energy absorbing material 7 is sponge. The energy absorption pipe 5 is formed by compounding steel fibers and resin.
Example 9. This example differs from example 5 in that: the first energy absorbing material 6 is rubber and the second energy absorbing material 7 is latex. The energy absorption tube 5 is formed by compounding polypropylene fibers and resin.

Claims (10)

1. The utility model provides a framework strip of antiknock door or antiknock window, includes steel framework strip body (1), is equipped with the cross-section in framework strip body (1) and is rectangular cavity, its characterized in that: a composition board is arranged in the cavity, the composition board comprises an energy absorption layer, a steel plate layer (3) and a foam metal plate layer (4),
the energy absorption layer comprises a plurality of energy absorption layers (2), and each energy absorption layer (2) comprises a plurality of energy absorption pipes (5) which are arranged in parallel;
the energy-absorbing pipes (5) of each energy-absorbing layer (2) are filled with first energy-absorbing materials (6), or,
second energy-absorbing materials (7) are filled between the energy-absorbing pipes (5) of each energy-absorbing layer (2), or,
the energy absorption pipes (5) of each energy absorption layer (2) are filled with first energy absorption materials (6), and second energy absorption materials (7) are filled between the energy absorption pipes (5) of each energy absorption layer (2);
the energy-absorbing pipes (5) of two adjacent energy-absorbing layers (2) are vertical to each other; the energy absorption layer is positioned in front of the steel plate layer (3), and the foam metal plate layer (4) is positioned behind the steel plate layer (3);
the surfaces of the frame strip body (1), the energy absorption pipe (5), the steel plate layer (3) and the foam metal plate layer (4) are coated with an anti-explosion coating.
2. A frame strip for an explosion vent or an explosion vent as defined in claim 1, wherein: the antiknock coating is polyurea.
3. A frame strip for an explosion vent or an explosion vent as defined in claim 1, wherein: the first energy-absorbing material (6) and the second energy-absorbing material (7) are one or more of ethylene-vinyl acetate copolymer, rubber, latex, polyurethane, sponge and polystyrene foam.
4. A frame strip for an explosion vent or an explosion vent as defined in claim 3, wherein: the first energy-absorbing material (6) is rigid polyurethane foam, and the second energy-absorbing material (7) is flexible polyurethane foam.
5. A frame strip for an explosion vent or an explosion vent as defined in claim 1, wherein: the energy-absorbing pipe (5) is made of carbon fiber or steel fiber or polypropylene fiber.
6. A frame strip for an explosion vent or an explosion vent as defined in claim 1, wherein: the energy absorption pipe (5) is formed by compounding carbon fiber or steel fiber or polypropylene fiber with resin.
7. A frame strip for an explosion vent or an explosion vent as defined in claim 1, wherein: the foamed metal plate layer (4) is a foamed metal plate layer (4) made of foamed aluminum.
8. A frame strip for an explosion vent or an explosion vent as defined in claim 1, wherein: the thickness of the foam metal plate layer (4) is larger than that of the steel plate layer (3); the diameter of the energy absorption pipe (5) is larger than the thickness of the steel plate layer (3).
9. A frame strip for an explosion vent or an explosion vent as defined in claim 1, wherein: the inner side surface of the frame strip body (1) is provided with a mounting groove (8).
10. A frame strip for an explosion vent or an explosion vent as defined in claim 1, wherein: the thickness of the front side surface of the frame strip body (1) is not less than that of the steel plate layer (3).
CN202110188153.3A 2021-02-19 2021-02-19 Frame strip of anti-explosion door or anti-explosion window Pending CN112832623A (en)

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Publication number Priority date Publication date Assignee Title
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CN204414690U (en) * 2014-11-26 2015-06-24 宁波禾顺新材料有限公司 A kind of metallic fiber foamed aluminium composite layered plate
CN205396216U (en) * 2016-02-15 2016-07-27 姚广春 Foamed aluminium GMT
CN206386431U (en) * 2017-01-11 2017-08-08 深圳市乾行达科技有限公司 A kind of staggered porous energy absorber
KR20170110208A (en) * 2016-03-22 2017-10-11 주식회사 베프 Buoyancy bullet-proof panel with sword-proof and bullet-proof function and Buoyancy bullet-proof life jacket with the same
CN208278715U (en) * 2018-01-24 2018-12-25 云南神宇新能源有限公司 A kind of explosion-proof oil storage tank
CN208325125U (en) * 2018-06-26 2019-01-04 张佳明 A kind of automobile buffer beam
CN212200860U (en) * 2020-04-03 2020-12-22 广州大学 Antiknock energy-absorbing protective structure
CN215056541U (en) * 2021-02-19 2021-12-07 山西聚脲防护材料有限公司 Frame strip of anti-explosion door or anti-explosion window

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104647823A (en) * 2013-11-25 2015-05-27 中国兵器工业第五二研究所 Shock-resistant energy-absorbing material and preparation method thereof
CN204414690U (en) * 2014-11-26 2015-06-24 宁波禾顺新材料有限公司 A kind of metallic fiber foamed aluminium composite layered plate
CN205396216U (en) * 2016-02-15 2016-07-27 姚广春 Foamed aluminium GMT
KR20170110208A (en) * 2016-03-22 2017-10-11 주식회사 베프 Buoyancy bullet-proof panel with sword-proof and bullet-proof function and Buoyancy bullet-proof life jacket with the same
CN206386431U (en) * 2017-01-11 2017-08-08 深圳市乾行达科技有限公司 A kind of staggered porous energy absorber
CN208278715U (en) * 2018-01-24 2018-12-25 云南神宇新能源有限公司 A kind of explosion-proof oil storage tank
CN208325125U (en) * 2018-06-26 2019-01-04 张佳明 A kind of automobile buffer beam
CN212200860U (en) * 2020-04-03 2020-12-22 广州大学 Antiknock energy-absorbing protective structure
CN215056541U (en) * 2021-02-19 2021-12-07 山西聚脲防护材料有限公司 Frame strip of anti-explosion door or anti-explosion window

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