CN112832623B - Frame strip of antiknock door or antiknock window - Google Patents

Frame strip of antiknock door or antiknock window Download PDF

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Publication number
CN112832623B
CN112832623B CN202110188153.3A CN202110188153A CN112832623B CN 112832623 B CN112832623 B CN 112832623B CN 202110188153 A CN202110188153 A CN 202110188153A CN 112832623 B CN112832623 B CN 112832623B
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CN
China
Prior art keywords
energy absorption
energy
plate layer
layer
antiknock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202110188153.3A
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Chinese (zh)
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CN112832623A (en
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
Jindun Protection Shanxi Technology Co ltd
Original Assignee
Shanghai Shangqin High Pressure Grouting Technology Co ltd
Jindun Protection Shanxi Technology Co ltd
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Application filed by Shanghai Shangqin High Pressure Grouting Technology Co ltd, Jindun Protection Shanxi Technology Co ltd filed Critical Shanghai Shangqin High Pressure Grouting Technology Co ltd
Priority to CN202110188153.3A priority Critical patent/CN112832623B/en
Publication of CN112832623A publication Critical patent/CN112832623A/en
Application granted granted Critical
Publication of CN112832623B publication Critical patent/CN112832623B/en
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Classifications

    • 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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 shape; Layered products comprising a layer 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a frame strip of an antiknock door or an antiknock window, which comprises a frame strip body, wherein a cavity with a rectangular section is arranged in the frame strip body, a combined plate is arranged in the cavity, the combined plate 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; the two adjacent energy absorption layered energy absorption pipes are mutually perpendicular; 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 body, the energy absorption pipe, the steel plate layer and the foam metal plate layer are coated with an antiknock coating. The frame body strip has light weight and good antiknock performance, and is convenient to transport and install.

Description

Frame strip of antiknock door or antiknock window
Technical Field
The invention relates to a frame strip of an antiknock door or an antiknock window, and belongs to the technical field of civil anti-explosion construction antiknock engineering.
Background
Perfect civil defence engineering is an important means for improving survivability and preserving war strength in one country. The prior civil defense engineering has insufficient consideration on the aspect of simultaneously having the dual functions of air defense and disaster resistance, in particular to an antiknock door frame or window frame in the prior civil defense engineering, has complex construction structure and is not beneficial to meeting the requirement of 'combination of peacetime and war'.
The patent with the publication number of CN202227878U discloses a civil defense engineering peacetime and war combined antiknock door frame, belonging to the technical field of civil 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 7-shaped with bent outer ends, and the long sides of the embedded steel bars are perpendicular to the metal inner frame; the inner ends of the extension bars are welded with the embedded bars in parallel, and the outer ends of the extension bars are provided with hook heads. The structure of the utility model not only obtains enough strength of the anti-knock door frame by a simple and reasonable structure, but also is convenient for construction and easy to be reliably combined with surrounding walls by means of extension steel bars, thereby laying a foundation for realizing the construction policy of 'combination of peacetime and war'. But the structure contains dispersion materials such as concrete, has low resistance, easy deformation and large weight. The dispersion materials such as concrete are easy to crack and splash in the process of being subjected to explosion shock waves, and the dispersion materials can possibly cause injury to objects and personnel to be protected to a certain extent. The weight of the device is heavy, and the transportation and the installation are inconvenient. Particularly for hidden engineering, as the size of the antiknock door panel is huge, the requirement of the door frame on the basic bearing capacity is high, so that the foundation construction difficulty of partial soil weak areas is increased, the construction period is prolonged, and the site selection of civil engineering is limited to a certain extent in order to prevent foundation settlement, particularly uneven settlement.
Disclosure of Invention
The invention aims to provide a frame body strip of an antiknock door or an antiknock window, which solves the problems that the antiknock door frame or the antiknock window frame in the prior art is heavy and inconvenient to transport and install.
The technical scheme adopted by the invention is as follows.
The frame strip of the antiknock door or the antiknock window comprises a steel frame strip body, wherein a cavity with a rectangular section is formed in the frame strip body, a combined plate is arranged in the cavity, and the combined plate comprises an energy absorption layer, a steel plate layer and a foam metal plate layer.
The energy absorption layers comprise 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 absorption tubes of each energy absorption layer are filled with a first energy absorption material or
The energy absorption tubes of each energy absorption layer are filled with a second energy absorption material or
The first energy-absorbing material is filled in the energy-absorbing pipes of each energy-absorbing layer, and the second energy-absorbing material is filled between the energy-absorbing pipes of each energy-absorbing layer;
The two adjacent energy absorption layered energy absorption pipes are mutually perpendicular; 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 body, the energy absorption pipe, the steel plate layer and the foam metal plate layer are coated with an antiknock coating.
As a preferable technical scheme, the antiknock coating is polyurea. Polyurea is an elastomeric material formed by the reaction of an isocyanate component with an amino compound component.
As the 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 property, can slow down impact, weaken oscillation and reduce stress amplitude, has yield strength which is gradually increased along with the increase of strain rate in a certain range, and can achieve good antiknock effect by being combined with a rigid layer (a three-metal plate layer). When the equivalent weight of the explosive is fixed, the polyurethane foam can effectively absorb the energy of the explosion shock wave, so that the stress of the protective door is reduced, and the rebound of the protective door is reduced.
As a preferable technical scheme, the first energy-absorbing material is hard polyurethane foam, and the second energy-absorbing material is soft polyurethane foam.
As the preferable technical scheme, the energy-absorbing tube is made of carbon fiber or steel fiber or polypropylene fiber.
As the preferable technical scheme, the energy absorption tube is formed by compounding carbon fiber or steel fiber or polypropylene fiber with resin.
As a preferred embodiment, the foam metal sheet layer is a foam metal sheet layer made of foam aluminum. The foamed aluminum is a metal material composed of a small amount of aluminum metal framework and a large amount of bubbles, and has the characteristics of continuous metal phase and dispersed air phase. Firstly, the existence of bubbles enables the bubbles to have higher porosity; and the heat-insulating and heat-insulating composite material also has the advantages of small density, strong impact absorption capability, 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 the aluminum foam has a three-stage characteristic; absorption and dispersion of shock waves by aluminum foam is largely dependent on the viscous effects of the structure. The energy absorption efficiency of the aluminum foam is improved by more than 50% compared with that of polyurethane singly by matching the aluminum foam with the hard polyurethane foam and the soft polyurethane foam.
As a preferable technical scheme, the thickness of the foam metal plate layer is larger than that of the steel plate layer; the diameter of the energy absorption tube is larger than the thickness of the steel plate layer.
As the preferable technical scheme, the inner side surface of the frame body strip body is provided with a mounting groove.
As a preferable technical scheme, the thickness of the front side surface of the frame body strip body is not smaller 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 body strip body and comprises an energy absorption layer, a steel plate layer and a foam metal plate layer, and the frame body strip body and the steel plate layer form a hard framework, so that the structural rigidity is good.
2. The energy-absorbing layer is closer to the explosion-facing surface than the foam metal plate layer, the energy-absorbing layer comprises a plurality of energy-absorbing layers which are arranged by tubular materials and are combined vertically and horizontally, and the structure that the energy-absorbing pipe is filled with the first energy-absorbing material is adopted, so that the energy-absorbing layer is easier to fix and has good energy-absorbing effect compared with the structure that the energy-absorbing pipe is directly made of soft energy-absorbing material. The foam metal is matched with the first energy-absorbing material and the second energy-absorbing material, so that the energy-absorbing capacity is improved by more than 50% and the energy-absorbing efficiency is improved by more than 30% compared with the single use of the first energy-absorbing material and the second energy-absorbing material, and the foam metal has good energy-absorbing effect and anti-flying sheet effect.
3. The front side of the frame body is an explosion-facing surface. The back side of the frame body is a back explosion surface. The explosion-proof surface coated with the explosion-proof coating bears the first wave impact of the impact wave, and the crisscrossed energy absorption tubes absorb the energy for the first time after the impact deformation; the steel plate layer coated with the antiknock coating bears the secondary impact of the shock wave, at the moment, the shock wave is weakened, the hardness is required to be greater than the energy absorption of the foam metal plate layer of the criss-cross energy absorption pipe, and finally, the back explosion surface coated with the antiknock coating bears the energy of the rest of shock wave energy finally, and the progressive anti-impact structure is adopted, so that the energy absorption and antiknock can be effectively realized.
4. High resistance, difficult deformation, small weight and convenient transportation and installation. When the door frame is used, the requirement on the bearing capacity of the foundation is low, the construction difficulty of the foundation in a part of soil soft areas is reduced, the construction period is shortened, and the site selection of ground protection engineering is not limited.
5. The structure does not contain materials such as concrete or foam concrete, under the dual actions of broken pieces and shock waves, the steel plate layer coated with the antiknock coating and the frame body are protected in two layers, the specific gravity of the energy-absorbing material is far smaller than that of the concrete, flying pieces after the energy-absorbing material is broken can be effectively prevented, and a certain degree of protection effect can be caused to objects and personnel in a protection range.
6. The outer surfaces of the steel plate layer, each energy-absorbing pipe, the foam metal plate layer and the frame body are all sprayed with anti-explosion paint, the anti-explosion paint acts on each component, and the integrity of each component is convenient to ensure when the component is impacted, so that 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 steel plate layer is impacted by shock waves, the deformation of the door or window made of the steel plate layer is small, so that the door plate or window frame is prevented from being opened, and the escape or equipment and material access of personnel are influenced.
Drawings
Fig. 1 is a schematic view of a window using the frame strip body of the invention.
Fig. 2 is a partial 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 partial enlarged view of a portion C of fig. 3.
FIG. 5 is a schematic view of a preferred embodiment of the frame strip body of the present invention.
Fig. 6 is a partial enlarged view of a portion D of fig. 5.
FIG. 7 is a schematic view of a preferred embodiment of the frame strip body of the present invention.
Fig. 8 is a partial 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 partial 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 partial enlarged view of a portion G of fig. 11.
Fig. 13 is a schematic view showing the structure of a door using the frame strip body of the present invention.
Wherein: a frame strip body-1; energy absorption layering-2; steel plate layer-3; foam metal plate layer-4; an energy absorption tube-5; a first energy absorbing material-6; a second energy absorbing material-7; a mounting groove-8; antiknock glass-9; antiknock door panel-10.
Detailed Description
The invention will now be further described with reference to the drawings and examples.
Example 1. As shown in fig. 1-4, a frame strip of an antiknock window comprises a steel frame strip body 1, wherein a cavity with a rectangular section is arranged in the frame strip body 1, a combined plate is arranged in the cavity, and the combined plate comprises an energy absorption layer, a steel plate layer 3 and a foam metal plate layer 4. The antiknock window comprises four frame body strips 1 and antiknock glass 9. The inner side surface of the frame body strip body 1 is provided with a mounting groove 8. The mounting groove 8 is provided with an antiknock glass 9. The four frame body strips 1 are connected end to end in turn to form a window frame.
The energy absorption layers comprise three energy absorption layers 2, and each energy absorption layer 2 comprises a plurality of energy absorption tubes 5 which are arranged in parallel;
The energy absorption tubes 5 of each energy absorption layer 2 are filled with a first energy absorption material 6.
The energy absorption pipes 5 of two adjacent energy absorption layers 2 are mutually vertical; 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 body strip body 1, the energy absorption pipe 5, the steel plate layer 3 and the foam metal plate layer 4 are coated with an antiknock coating.
The antiknock coating is polyurea.
The first energy absorbing material 6 is a rigid polyurethane foam.
The energy absorption tube 5 is made of carbon fiber. The carbon fiber is a novel fiber material of high tensile, high strength and high modulus fiber with carbon content more than 95%. 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 very high damping coefficient, can enable shock wave vibration to stop rapidly, and absorbs most of energy. The carbon fiber has high axial strength and modulus, no creep deformation, ultrahigh temperature resistance under non-oxidation environment, good fatigue resistance, specific heat and conductivity between nonmetal and metal, good corrosion resistance, good electric conduction and heat conduction properties of the carbon fiber and good electromagnetic shielding property. The energy-absorbing tube made of the carbon fiber composite material can avoid the defects of the energy-absorbing tube made of the conventional material, such as the energy-absorbing tube made of the metal material, such as excessive hardness, insufficient energy absorption, corrosion resistance, aging resistance, high temperature resistance, insufficient electromagnetic shielding and the like.
The foam metal sheet layer 4 is a foam metal sheet layer 4 made of foam 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 tube 5 is larger than the thickness of the steel plate layer 3. The frame strip body 1 is long.
The thickness of the front side surface of the frame body 1 is not less than the thickness of the steel plate layer 3.
The thickness of the foam metal plate layer is 3-6 times of the thickness of each side of the frame body strip; the diameter of the energy absorption tube is 3-5 times of the thickness of each side of the frame body. The spacing between the front side and the rear side of the frame body is 450mm. The surface density of the frame strip is 400kg/m 2. Fragments and shock waves tested against a 1000 lbs MK83 5m explosion from the gate. The broken piece can be used as an examination test index according to a fire bomb with the thickness of 12.7mm at a position of 54 m, and the shock wave is equivalent to the overpressure of the shock wave of the explosion of an aviation bomb of 1000 lbs MK83 according to the criterion of explosion similarity and the distance of 10kg TNT from the protective door to the ground of 1.4 m.
The advantages of this embodiment are as follows:
1. the combined plate is arranged in the cavity of the frame body strip body 1 and comprises an energy absorption layer, a steel plate layer 3 and a foam metal plate layer 4, and the frame body strip body 1 and the steel plate layer 3 form a hard framework and have good structural rigidity.
2. The energy-absorbing layer is closer to the explosion-facing surface than the foam metal plate layer 4, and comprises a plurality of energy-absorbing layers 2 which are arranged by tubular materials, and compared with the structure that the energy-absorbing tube is filled with the first energy-absorbing material 6, the structure is easier to fix and has good energy-absorbing effect because the soft energy-absorbing material is directly adopted. The foam metal is matched with the first energy-absorbing material 6 and the second energy-absorbing material 7, so that the energy-absorbing capacity is improved by more than 50% and the energy-absorbing efficiency is 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-absorbing effect and anti-flying sheet effect.
3. The front side of the frame body 1 is an explosion-facing surface. The back side of the frame body 1 is a back explosion surface. The explosion-proof surface coated with the explosion-proof coating bears the first wave impact of the impact wave, and the crisscrossed energy absorption tubes absorb the energy for the first time after the impact deformation; the steel plate layer 3 coated with the antiknock coating bears the secondary impact of the shock wave, at the moment, the shock wave is weakened, the hardness is required to be greater than the energy absorption of the foam metal plate layer 4 of the criss-cross energy absorption pipe, and finally, the back explosion surface coated with the antiknock coating bears the energy of the rest shock wave finally, and the progressive anti-impact structure is adopted, so that the energy absorption and antiknock can be effectively realized.
4. High resistance, difficult deformation, no concrete, small weight and convenient transportation and installation. When the door frame is used, the requirement on the bearing capacity of the foundation is low, the construction difficulty of the foundation in a part of soil soft areas is reduced, the construction period is shortened, and the site selection of ground protection engineering is not limited.
5. The structure does not contain materials such as concrete or foam concrete, under the dual actions of broken pieces and shock waves, the steel plate layer 3 coated with the antiknock coating and the frame body strip body 1 are protected in two layers, the specific gravity of the energy absorbing material is far smaller than that of the concrete, flying pieces after the energy absorbing material is broken can be effectively prevented, and a certain degree of protection can be caused to 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 body are all sprayed with anti-explosion paint, and the anti-explosion paint acts on each component, so that the integrity of each component is convenient to ensure when the component is impacted, and the anti-explosion effect is improved and the manufacturing cost is lower.
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, the door or window frame is prevented from being opened, and the escape or equipment and material ingress and egress of personnel are influenced.
Example 2. As shown in fig. 5 to 6, this 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, this embodiment is different from embodiment 1 in that: the energy absorption tubes 5 of each energy absorption layer 2 are filled with a second energy absorption material 7. The energy absorbing layer comprises two energy absorbing layers 2. The second energy absorbing material 7 is a flexible polyurethane foam.
Example 4. As shown in fig. 9 to 10, this embodiment is different from embodiment 1 in that: the energy absorption tubes 5 of each energy absorption layer 2 are filled with a second energy absorption material 7. The energy absorption tubes 5 of the energy absorption layers 2 are not filled with the first energy absorption material.
Example 5. As shown in fig. 11 to 12, this embodiment is different from embodiment 1 in that: the energy absorption tubes 5 of each energy absorption layer 2 are filled with a second energy absorption material 7. The energy absorbing layer comprises four energy absorbing layers 2.
Example 6. As shown in fig. 13, this embodiment is different from embodiment 1 in that: the four frame body strip bodies 1 are connected end to end in turn to form a door frame. The mounting groove 8 is provided with an antiknock door panel 10.
Example 7. The present embodiment differs from embodiment 5 in that: the first energy absorbing material 6 is an ethylene-vinyl acetate copolymer and the second energy absorbing material 7 is latex.
Example 8. The present embodiment differs from embodiment 5 in that: the first energy absorbing material 6 is polystyrene foam and the second energy absorbing material 7 is sponge. The energy absorption tube 5 is formed by compounding steel fibers and resin.
Example 9. The present embodiment differs from embodiment 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 (7)

1. The utility model provides a framework strip of explosion-proof door or explosion-proof window, includes framework strip body (1) of steel, is equipped with the rectangular cavity of cross-section in framework strip body (1), its characterized in that: a combined plate is arranged in the cavity and comprises an energy absorption layer, a steel plate layer (3) and a foam metal plate layer (4),
The energy absorption layers comprise a plurality of energy absorption layers (2), and each energy absorption layer (2) comprises a plurality of energy absorption tubes (5) which are arranged in parallel;
the energy absorption tube (5) of each energy absorption layer (2) is filled with a first energy absorption material (6), or
The energy absorption tubes (5) of each energy absorption layer (2) are filled with a second energy absorption material (7), or
The energy absorption pipes (5) of each energy absorption layer (2) are filled with a first energy absorption material (6), and the energy absorption pipes (5) of each energy absorption layer (2) are filled with a second energy absorption material (7);
the energy absorption pipes (5) of two adjacent energy absorption layers (2) are mutually vertical; 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 body strip body (1), the energy absorption tube (5), the steel plate layer (3) and the foam metal plate layer (4) are coated with antiknock coatings;
the first energy-absorbing material (6) is hard polyurethane foam, and the second energy-absorbing material (7) is soft polyurethane foam;
the antiknock coating is polyurea.
2. A frame strip for an antiknock door or window according to claim 1 wherein: the energy-absorbing tube (5) is made of carbon fiber or steel fiber or polypropylene fiber.
3. A frame strip for an antiknock door or window according to claim 1 wherein: the energy absorption tube (5) is formed by compounding carbon fiber or steel fiber or polypropylene fiber with resin.
4. A frame strip for an antiknock door or window according to claim 1 wherein: the foam metal plate layer (4) is made of foam aluminum.
5. A frame strip for an antiknock door or window according to 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 tube (5) is larger than the thickness of the steel plate layer (3).
6. A frame strip for an antiknock door or window according to claim 1 wherein: the inner side surface of the frame body strip body (1) is provided with an installation groove (8).
7. A frame strip for an antiknock door or window according to claim 1 wherein: the thickness of the front side surface of the frame body strip body (1) is not smaller than that of the steel plate layer (3).
CN202110188153.3A 2021-02-19 2021-02-19 Frame strip of antiknock door or antiknock window Active CN112832623B (en)

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CN205396216U (en) * 2016-02-15 2016-07-27 姚广春 Foamed aluminium GMT
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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