CN219220212U - Civil air defense door plate - Google Patents

Abstract

The application discloses a civil air defense door plant relates to civil air defense door technical field. The civil air defense door plate comprises a door plate main body; the light layer is filled in the door panel main body and is made of a light material and used for slowing down the propagation of explosion shock waves; the reinforcing layer is wrapped on the light layer and is made of a high-strength material; the flame-retardant layer is wrapped on the reinforcing layer and made of flame-retardant materials, and the flame-retardant layer is arranged on the surface of the door plate main body; the reinforcing layer and the flame-retardant layer are used for blocking explosive fragments and preventing combustion from spreading. Therefore, the civil air defense door plate has stronger impact resistance, good explosion resistance and flame retardance, and the door body is light, so that the transportation and the installation are more convenient.

Description

Civil air defense door plate

Technical Field

The application relates to the technical field of civil air defense doors, in particular to a civil air defense door plate.

Background

Civil air defense, also known as civil air defense, is an activity of government mobilization and organization of masses, taking anti-air attack, disaster-fighting and relief measures, implementing rescue actions, and preventing and relieving disaster damage. The civil air defense door belongs to civil air defense protection equipment, and the ideal civil air defense door has the functions of light weight, flame retardance, explosion prevention, sound insulation and the like.

The traditional civil air defense door is mostly a reinforced concrete door and a steel door, has the defects of thickness, weight, large size and the like, and is not beneficial to installation and later maintenance work. When explosion occurs, the traditional civil air defense door cannot effectively resist flame, combustion spread is easily caused, and fragments generated by the explosion cannot be well blocked.

Disclosure of Invention

The embodiment of the application provides a people's air defense door plant, its explosion-proof performance is higher, and the quality is lighter, be convenient for installation and later maintenance.

The embodiment of the application provides a people's air defense door plant, it includes: a door panel body; the light layer is filled in the door panel main body and is used for slowing down the propagation of explosion shock waves; the reinforcing layer is wrapped on the light layer; the flame-retardant layer is wrapped on the reinforcing layer and is arranged on the surface of the door plate main body; the reinforcing layer and the flame-retardant layer are used for blocking explosive fragments and preventing combustion from spreading.

In some embodiments, the flame retardant layer is a spray-type coating.

In some embodiments, the sprayable coating is one or more of sprayable polyurethane, polyurethaneurea, sprayable polyurea.

In some embodiments, the reinforcement layer is made of steel sheet.

In some embodiments, the reinforcing layer is a steel sheet having a yield strength of 295MPa or more.

In some embodiments, the lightweight layer is aluminum foam having a density of 0.25g/cm ³ ～0.75g/cm ³ 。

In some embodiments, the thickness of the lightweight layer is greater than both the reinforcing layer and the flame retardant layer.

The embodiment of the application provides a people's air defense door plant, it includes: a door panel body; the light layer is filled in the door panel main body and is used for slowing down the propagation of explosion shock waves; the reinforcing layer is wrapped on the light layer; the flame-retardant layer is wrapped on the reinforcing layer and is arranged on the surface of the door plate main body; the reinforcing layer and the flame-retardant layer are used for blocking explosive fragments and preventing combustion from spreading. The embodiment of the application has a light layer, a reinforcing layer and a flame retardant layer structure. The light layer can slow down the propagation of explosion shock wave, plays a role in slowing down the absorption of shock wave energy, and adopts light materials to make the civil air defense door plate lighter. In addition, the strength of enhancement layer is higher, blocks the influence that brings to the blast shock wave with locating the fire-retardant layer of door plant main part surface jointly. Meanwhile, the flame-retardant layer arranged on the surface of the door panel main body can also play a role in preventing combustion from spreading. Therefore, the civil air defense door plate has stronger impact resistance, good explosion resistance and flame retardance, and the door body is light, so that the transportation and the installation are more convenient.

Drawings

Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of an overall structure of a civil air defense door plate according to an embodiment of the present application.

Fig. 2 is a cross-sectional view of a civil air defense door plate according to an embodiment of the present application.

Reference numerals: 1. a door panel body; 2. a flame retardant layer; 3. a reinforcing layer; 4. a light layer.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

It should be noted that the following problems exist in the prior civil air defense door plate:

1. the traditional civil air defense door is mostly a reinforced concrete door and a steel door, has the defects of thickness, weight, large size and the like, and is not beneficial to installation and later maintenance work.

2. When explosion occurs, the traditional civil air defense door cannot effectively resist flame, combustion spread is easily caused, and fragments generated by the explosion cannot be well blocked.

In order to solve the problems, the scheme provides the civil air defense door plate which is higher in explosion-proof performance, better ensures the health and property safety of people, lighter in weight and convenient to install and maintain in a later period.

Specifically, referring to fig. 1 and 2, an embodiment of the present application provides a civil air defense door plate, which includes: a door panel body 1; a lightweight layer 4 filled inside the door panel body 1, which is made of lightweight material for slowing down propagation of explosion shock waves; the reinforcing layer 3 is wrapped on the light layer 4 and is made of a high-strength material; the flame-retardant layer 2 is wrapped on the reinforcing layer 3 and made of flame-retardant materials, and the flame-retardant layer 2 is arranged on the surface of the door panel main body 1; both the reinforcing layer 3 and the flame retardant layer 2 serve to block explosive fragments and to prevent combustion from propagating.

In the utility model, the civil air defense door plate has a structure of a light layer 4, a reinforcing layer 3 and a flame retardant layer 2. Wherein the light layer 4 can slow down the propagation of explosion shock wave, plays a role in slowing down the absorption of shock wave energy, and adopts light materials to make the civil air defense door plate lighter. In addition, the strength of the reinforcing layer 3 is higher, and the reinforcing layer and the flame retardant layer 2 arranged on the surface of the door panel main body 1 together block the influence on the explosion shock wave. Meanwhile, the flame retardant layer 2 provided on the surface of the door panel body 1 can also play a role in preventing combustion from spreading.

In this embodiment, the flame retardant layer 2 is a spray-type coating. Specifically, this may be a spray-type polyurethane having a thickness of 3 mm.

In some examples, the sprayable coating may be one or more of sprayable polyurethane, polyurethaneurea, sprayable polyurea. The spray coating may be the following parameters: the tensile strength is more than or equal to 16MPa, the elongation at break is more than or equal to 300 percent, the tearing strength is more than or equal to 60N/mm, the adhesion force with a steel plate is more than or equal to 8MPa, and the flame retardant rating (UL 94 standard) is V-1 or V-0 grade.

In the present embodiment, the reinforcing layer 3 is made of steel plate.

In some examples, the reinforcing layer is a steel sheet having a yield strength of 295MPa or more. Thus, the high and low grade steel plate has stronger deformation resistance and can be better lower than the influence caused by explosion shock waves.

In some examples, the lightweight layer 4 may be aluminum foam, dense aluminum foamThe degree of the reaction is 0.25g/cm ³ ～0.75g/cm ³ . Therefore, the foamed aluminum is selected as the material of the light layer 4, and has the characteristics of low density, strong shock wave absorption capability, high temperature resistance, strong fireproof performance, sound insulation, noise reduction, low heat conductivity and the like, so that the light layer 4 has lighter weight, can well absorb the explosion shock wave and slow down the propagation of the explosion shock wave.

In the present embodiment, the thickness of the light layer 4 is greater than the reinforcing layer 3 and the flame retardant layer 2. Thus, the thicker light-weight layer 4 can better slow down the propagation of the shock wave.

In the utility model, the civil air defense door plate has a structure of a light layer 4, a reinforcing layer 3 and a flame retardant layer 2. Wherein the light layer 4 can slow down the propagation of explosion shock wave, plays a role in slowing down the absorption of shock wave energy, and adopts light materials to make the civil air defense door plate lighter. In addition, the strength of the reinforcing layer 3 is higher, and the reinforcing layer and the flame retardant layer 2 arranged on the surface of the door panel main body 1 together block the influence on the explosion shock wave. Meanwhile, the flame retardant layer 2 provided on the surface of the door panel body 1 can also play a role in preventing combustion from spreading. Therefore, the civil air defense door plate has stronger impact resistance, good explosion resistance and flame retardance, and the door body is light, so that the transportation and the installation are more convenient.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The foregoing has described in detail an electronic device provided by embodiments of the present application, and specific examples have been applied herein to illustrate the principles and embodiments of the present application, where the foregoing examples are only for aiding in understanding of the technical solutions and core ideas of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (7)

1. A civil air defense door sheet, comprising:

a door panel body;

the light layer is filled in the door panel main body and is used for slowing down the propagation of explosion shock waves;

the reinforcing layer is wrapped on the light layer;

the flame-retardant layer is wrapped on the reinforcing layer and is arranged on the surface of the door plate main body;

the reinforcing layer and the flame-retardant layer are used for blocking explosive fragments and preventing combustion from spreading.

2. The air defense door according to claim 1 wherein the flame retardant layer is a spray-type coating.

3. The civil air defense door plate of claim 2 wherein the spray-type coating is one or more of spray-type polyurethane, polyurethane urea, spray-type polyurea.

4. The civil air defense door panel of claim 1 wherein the reinforcing layer is made of steel sheet.

5. The civil air defense door plate of claim 1 wherein the reinforcing layer is a steel plate with a yield strength of not less than 295 MPa.

6. The civil air defense door plate of claim 1 wherein the lightweight layer is aluminum foam having a density of 0.25g/cm ³ ～0.75g/cm ³ 。

7. The civil air defense door panel of claim 1 wherein the lightweight layer has a thickness greater than both the reinforcing layer and the flame retardant layer.

Images