Anti-theft door leaf and anti-theft door

By using graphite polystyrene board as filler in the door leaf of the security door and combining it with adhesive layer and support structure, the problem of insufficient heat insulation and fire resistance of the security door filler is solved, and the overall performance is improved.

CN223824877UActive Publication Date: 2026-01-23CHENGDU PANPAN DOOR CO LTD +1
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Patent Information

Application Number
CN202423150892.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2026-01-23
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

The existing insulation and fire resistance properties of security door filling materials are insufficient, failing to meet the protection needs of property and personal safety.

Method used

Graphite polystyrene boards are filled into the cavity of the security door leaf and fixed with adhesive layers. Combined with multiple support parts and reinforcing ribs, the thermal insulation and fire resistance of the material are improved.

Benefits of technology

It achieves excellent heat insulation and fire resistance performance of the security door, has good sound insulation and heat preservation effects, and enhances the durability and anti-pry capability of the door leaf.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a door leaf of an anti-theft door. The door leaf of the anti-theft door comprises a first shell and a second shell, the first shell is connected with the second shell, and an accommodating cavity is defined by the first shell and the second shell; and the graphite polystyrene plate is arranged in the accommodating cavity in a filling manner. The door leaf of the anti-theft door has excellent heat insulation performance and fireproof performance. The utility model further discloses an anti-theft door.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of security doors, in particular to a security door leaf and a security door. BACKGROUND

[0002] The security doors on the market at present often fill the hollow part of the security door leaf with materials to improve the overall strength, sound insulation and thermal insulation capacity of the security door, but will also affect the weight and service life of the security door, the traditional security door filler is rock wool, honeycomb paper, aluminum foil and polyurethane foam, however, the rock wool is heavy and expensive, the honeycomb paper is prone to deformation, has low strength, is not heat-insulating and has poor sound insulation performance, the aluminum foil is expensive, is prone to noise, is not heat-insulating and has poor sound insulation performance, the polyurethane foam material has poor flame retardance, is flammable at high temperature and will produce toxic gases when burning.

[0003] The comprehensive performance of the traditional security door filler is poor, especially the heat-insulating performance and fireproof performance are not excellent enough, and the security door filler cannot meet the protection requirements of people for property and personal safety. SUMMARY

[0004] The utility model discloses a security door leaf with excellent heat-insulating performance and fireproof performance.

[0005] To solve the above technical problems, the embodiment of the utility model discloses a security door leaf, which comprises:

[0006] A first shell;

[0007] A second shell, the first shell and the second shell are connected, and the first shell and the second shell enclose a containing cavity;

[0008] A graphite polystyrene board is filled in the containing cavity.

[0009] The above technical scheme makes full use of the outstanding performance of the graphite polystyrene board in fireproofing, heat preservation, strength and the like, the graphite polystyrene board is arranged in the containing cavity formed by the first shell and the second shell, so that the security door leaf has excellent comprehensive performance, for example, the graphite polystyrene board combines the good heat conduction performance of graphite and the light weight and heat preservation performance of polystyrene, and the special layered structure of graphite enables the graphite to be uniformly distributed in the interior of the graphite polystyrene board, so that the heat-insulating effect of the material can be greatly improved.

[0010] According to another specific embodiment of the utility model, the utility model discloses an implementation mode of a security door leaf, along the first direction, the graphite polystyrene board includes first face and second face, first face is attached to the first shell, and the second face is attached to the second shell.

[0011] The above technical scheme can avoid the appearance of a cavity in the accommodating cavity, thereby avoiding the appearance of defects such as hollowing, bulging and recessing of the security door leaf.

[0012] According to another specific embodiment of the utility model, the utility model discloses an implementation mode of a security door leaf, the security door leaf includes a glue layer, along the first direction, the glue layer is arranged between the first face and the first shell, and / or the glue layer is arranged between the second face and the second shell.

[0013] The above technical scheme can fix the graphite polystyrene board to the shell by arranging the glue layer between the graphite polystyrene board and the shell (for example, the first shell and the second shell), thereby avoiding the generation of noise caused by the movement of the graphite polystyrene board in the accommodating cavity.

[0014] According to another specific embodiment of the utility model, the utility model discloses an implementation mode of a security door leaf, the glue layer is arranged on the first face and / or the second face, and is used for filling the gaps in the first face and / or the second face.

[0015] The above technical scheme can fill the gaps in the surface (for example, the first face and the second face) of the graphite polystyrene board, thereby further improving the sound insulation, heat preservation and other properties of the graphite polystyrene board.

[0016] According to another specific embodiment of the utility model, the utility model discloses an implementation mode of a security door leaf, which includes a plurality of support portions, the plurality of support portions are arranged on the first face and / or the second face at intervals, along the first direction, the plurality of support portions are arranged between the first face and the first shell, and / or the plurality of support portions are arranged between the second face and the second shell.

[0017] According to another specific embodiment of the utility model, the utility model discloses an implementation mode of a security door leaf, each support portion includes a plurality of first reinforcing ribs and a plurality of second reinforcing ribs, the plurality of first reinforcing ribs are arranged at intervals along a second direction, and each first reinforcing rib extends along a third direction, the plurality of second reinforcing ribs are arranged at intervals along the third direction, and each second reinforcing rib extends along the second direction, and the plurality of first reinforcing ribs and the plurality of second reinforcing ribs intersect with each other.

[0018] According to the technical scheme, the plurality of support portions are arranged on the surface (for example, the first surface and the second surface) of the graphite polystyrene plate, each of the support portions comprises the plurality of first reinforcing ribs and the plurality of second reinforcing ribs, so that the durability of the security door is improved, for example, when someone tries to damage the security door, the support portions can provide support and blocking effects, so that the security door is prevented from being damaged, and when a fire occurs, the graphite polystyrene plate burned into a molten state is stopped on the first reinforcing ribs and the second reinforcing ribs and is not easy to slide down.

[0019] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a security door leaf, the graphite polystyrene plate comprises a plurality of first installation grooves and a plurality of second installation grooves, each first installation groove is provided with a first reinforcing rib, each second installation groove is provided with a second reinforcing rib, and the plurality of first installation grooves and the plurality of second installation grooves intersect with each other in the same plane.

[0020] The plurality of first installation grooves are arranged on the first surface in the second direction, the plurality of second installation grooves are arranged on the first surface in the third direction, and / or the plurality of first installation grooves are arranged on the second surface in the second direction, and the plurality of second installation grooves are arranged on the second surface in the third direction.

[0021] According to the technical scheme, the plurality of first installation grooves and the plurality of second installation grooves are arranged on the surface (for example, the first surface and the second surface) of the graphite polystyrene plate, each first installation groove is provided with a first reinforcing rib, and each second installation groove is provided with a second reinforcing rib, so that the strength of the graphite polystyrene plate is further improved.

[0022] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a security door leaf, along the first direction, the height of the first reinforcing rib in the first installation groove is not higher than the first surface, and the height of the second reinforcing rib in the second installation groove is not higher than the first surface; and / or along the first direction, the height of the first reinforcing rib in the first installation groove is not higher than the second surface, and the height of the second reinforcing rib in the second installation groove is not higher than the second surface.

[0023] According to the technical scheme, the height of the first reinforcing rib in the first installation groove and the height of the second reinforcing rib in the second installation groove are not higher than the surface (for example, the first surface and the second surface) of the graphite polystyrene plate, so that the first reinforcing rib and the second reinforcing rib are prevented from being arranged on the surface of the graphite polystyrene plate and being pressed against the shell (for example, the first shell and the second shell) of the graphite polystyrene plate, and the graphite polystyrene plate or the shell of the graphite polystyrene plate is prevented from being damaged.

[0024] According to another specific embodiment of the present application, the embodiment of the present application discloses a door leaf of a security door, wherein the content of flake graphite in the graphite polystyrene board is 4% to 10%.

[0025] The embodiment of the present application further discloses a security door, wherein the security door at least comprises the door leaf of the security door in any of the above embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A schematic diagram of a security door provided by the embodiment of the present application is shown.

[0027] Figure 2 A three-dimensional schematic diagram of a door leaf of a security door provided by the embodiment of the present application is shown.

[0028] Figure 3 A front view of a graphite polystyrene board of a door leaf of a security door provided by the embodiment of the present application is shown.

[0029] Figure 4 A side view of a graphite polystyrene board of a door leaf of a security door provided by the embodiment of the present application is shown.

[0030] Figure 5 A bottom view of a graphite polystyrene board of a door leaf of a security door provided by the embodiment of the present application is shown.

[0031] Figure 6 A partial enlarged schematic diagram of a door leaf of a security door provided by the embodiment of the present application is shown. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described below by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the description. Although the description of the present application will be introduced together with the preferred embodiments, this does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application together with the embodiments is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0033] It should be noted that in the present specification, similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0034] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0035] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0036] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0038] In some embodiments, see Figure 1 This application provides a security door, including a door frame 10, a security door leaf 20, and a door lock device 30. Exemplarily, the security door leaf 20 also includes a hardware channel 201, which extends along the length direction Z of the security door leaf 20 and is used to install related components of the door lock device 30, such as a lock cylinder, push bar, and bolt.

[0039] In some embodiments, the anti-theft door support device is filled with thermosetting composite polystyrene insulation material. Thermosetting composite polystyrene insulation material has better performance than materials such as honeycomb paper, honeycomb aluminum, and polyurethane foam. However, its thermal insulation and fire resistance performance is still not ideal. For example, in application scenarios such as chemical plants, the temperature that the anti-theft door will face in the event of a fire is higher than that in ordinary household application scenarios. Therefore, it is necessary to further improve the thermal insulation and fire resistance performance of the anti-theft door.

[0040] Based on this, see Figure 1 , Figure 2This application provides a security door leaf 20, including a first housing 211, a second housing 212, and a graphite polystyrene board 213. The first housing 211 and the second housing 212 are connected, forming a receiving cavity 214, within which the graphite polystyrene board 213 is filled. Exemplarily, the first housing 211 and the second housing 212 can be made of sheet metal, and all three housings—the first housing 211, the second housing 212, and the graphite polystyrene board 213—are plate-shaped.

[0041] For example, the first housing 211, the second housing 212, and the graphite polystyrene plate 213 are all cuboid in shape. It is understood that this application does not limit the shapes of the first housing 211, the second housing 212, and the graphite polystyrene plate 213; for example, they can also be cubes or other shapes. The embodiments of this application also do not limit the number of graphite polystyrene plates 213 within the accommodating cavity 214; for example, they can be one cuboid or two square plates laid flat.

[0042] By adopting the above technical solution, the outstanding properties of graphite polystyrene board 213 in terms of fire resistance, heat insulation, and high strength are fully utilized. The graphite polystyrene board 213 is placed within the accommodating cavity 214 formed by the first shell 211 and the second shell 212, giving the security door leaf 20 excellent overall performance. For example, because the graphite polystyrene board 213 combines the good thermal conductivity of graphite with the lightweight and heat insulation properties of polystyrene, and based on the special layered structure of graphite, it can be evenly distributed within the graphite polystyrene board 213, significantly improving the material's heat insulation effect. In addition to possessing all the properties of ordinary polystyrene boards, it also has better heat insulation and fire resistance (for example, it can reach the B1 level of flame-retardant materials in GB8624-2012; therefore, under open flame or high temperature, the graphite polystyrene board 213 will not burn immediately, and the open flame can self-extinguish after reaching a certain temperature).

[0043] In some embodiments, the content of flake graphite in the graphite polystyrene board 213 includes 4% to 10%. Exemplarily, the content of flake graphite in the graphite polystyrene board 213 may be 4%, 5%, 6.5%, 8%, 10%, etc., and this application does not limit it.

[0044] By introducing flake graphite into polystyrene polymer to form graphite polystyrene plate 213, the graphite polystyrene plate 213 provided in this application embodiment can achieve a thermal conductivity of 0.032 W (m / k), a compressive strength of 110 kPa, a combustion rate growth index of only 168 W / s for monomer combustion, and a total heat release of only 13 MJ for 600 seconds of monomer combustion. In the flammability ignition test, the flame tip height is less than 150 mm within 60 seconds, and there is no phenomenon of burning drips igniting filter paper.

[0045] In some embodiments, see Figure 1 , Figure 2 Along the first direction X, the graphite polystyrene board 213 includes a first surface 2131 and a second surface 2132. The first surface 2131 is attached to the first housing 211, and the second surface 2132 is attached to the second housing 212. By adopting the above technical solution, with the first surface 2131 attached to the first housing 211 and the second surface 2132 attached to the second housing 212, cavities can be avoided in the accommodating cavity 214, thus preventing defects such as hollowness, bulging, and dents in the security door leaf 20.

[0046] In some embodiments, see Figure 1 , Figure 2 The security door leaf 20 includes an adhesive layer 215 for bonding and fixing the graphite polystyrene board 213 to the housing, preventing the graphite polystyrene board 213 from moving and generating noise within the accommodating cavity 214. Exemplarily, along the first direction X, the security door leaf 20 includes an upper adhesive layer 2151 and a lower adhesive layer 2152. Along the first direction X, the upper adhesive layer 2151 is disposed between the first surface 2131 and the first housing 211, or the lower adhesive layer 2152 is disposed between the second surface 2132 and the second housing 212. Alternatively, the upper adhesive layer 2151 is disposed between the first surface 2131 and the first housing 211, and the lower adhesive layer 2152 is disposed between the second surface 2132 and the second housing 212. For example, the adhesive layer 215 is formed of polyurethane foam. When the polyurethane foam is sprayed from the aerosol can, the foamy polyurethane material will expand rapidly and react with the moisture in the air to form foam. The cured foam has multiple effects such as filling gaps, bonding, sealing, heat insulation, and sound absorption.

[0047] In some embodiments, the upper adhesive layer 2151 covers the first surface 2131, or the lower adhesive layer 2152 covers the second surface 2132; or the upper adhesive layer 2151 covers the first surface 2131, and the lower adhesive layer 2152 covers the second surface 2132. This can fill the gaps on the surface of the graphite polystyrene board 213, further improving its sound insulation, heat insulation, and other properties.

[0048] In some embodiments, see Figure 1 , Figure 2 ,Figure 3 The security door leaf 20 includes multiple support portions 216. Along the first direction X, the multiple support portions 216 are spaced apart between the first surface 2131 and the first housing 211, or spaced apart between the second surface 2132 and the second housing 212; or, along the first direction X, the multiple support portions 216 are spaced apart between the first surface 2131 and the first housing 211, and also spaced apart between the second surface 2132 and the second housing 212. By adopting the above technical solution, multiple first reinforcing ribs and multiple second reinforcing ribs are provided on the surface of the graphite polystyrene board 213 (e.g., the first surface 2131 and the second surface 2132), which can not only improve the strength of the security door and enhance its anti-pry and anti-vandalism capabilities, but also improve the strength of the graphite polystyrene board 213 and its ability to prevent dripping of molten combustion materials.

[0049] In some embodiments, each support portion 216 includes a plurality of first reinforcing ribs 2161 and a plurality of second reinforcing ribs 2162. The plurality of first reinforcing ribs 2161 are spaced apart along a second direction Y, and each first reinforcing rib 2161 extends along a third direction Z. The plurality of second reinforcing ribs 2162 are spaced apart along a third direction Z, and each second reinforcing rib 2162 extends along the second direction Y. The plurality of first reinforcing ribs 2161 and the plurality of second reinforcing ribs 2162 intersect each other in pairs. For example, each support portion 216 includes 6 first reinforcing ribs 2161 spaced apart along the second direction Y, and 7 second reinforcing ribs 2162 spaced apart along a third direction Z. The 6 first reinforcing ribs 2161 and the 7 second reinforcing ribs 2162 intersect each other in pairs to form a plurality of square reinforcing rib grids. It is understood that the embodiments of this application do not limit the number of first reinforcing ribs 2161 and second reinforcing ribs 2162, for example, it can be 1, 2, 3, 4, 5, 6, 7, 8, etc. The number of support parts 216 in this embodiment is not limited. For example, it can be 1, 2, 3, 4, 5, 6, 7, 8, etc.

[0050] For example, see Figure 2 , Figure 3 , Figure 4The length L1 of the graphite polystyrene plate 213 in the third direction Z is any one of 1800mm to 2500mm, for example, 1800mm, 1920mm, 2500mm, etc. The width L2 of the graphite polystyrene plate 213 in the second direction Y is any one of 200mm to 1000mm, for example, 200mm, 300mm, 400mm, 500mm, 680mm, 800mm, 1000mm, etc. The thickness H1 of the graphite polystyrene plate 213 in the first direction X is any one of 60mm to 80mm, for example, 60mm, 71mm, 80mm, etc. The side length A1 of the square reinforcing mesh formed by the intersection of the first reinforcing rib 2161 and the second reinforcing rib 2162 is 104mm. It is understood that the embodiments of this application do not limit the dimensions of the graphite polystyrene plate 213, the first reinforcing rib 2161, and the second reinforcing rib 2162.

[0051] In some embodiments, see Figure 4 , Figure 5 , Figure 6 The graphite polystyrene board 213 includes multiple first mounting grooves 2133 and multiple second mounting grooves 2134. Each first mounting groove 2133 is provided with a first reinforcing rib 2161, and each second mounting groove 2134 is provided with a second reinforcing rib 2162. The multiple first mounting grooves 2133 and multiple second mounting grooves 2134 intersect each other in the same plane to form multiple square mounting groove grids. Each mounting groove grid corresponds one-to-one with each reinforcing rib grid. The multiple first mounting grooves 2133 are spaced apart along the second direction Y on the first surface 2131, and the multiple second mounting grooves 2134 are spaced apart along the third direction Z on the first surface 2131. Alternatively, the multiple first mounting grooves 2133 are spaced apart along the second direction Y on the second surface 2132, and the multiple second mounting grooves 2134 are spaced apart along the third direction Z on the second surface 2132. Or, multiple first mounting grooves 2133 and multiple second mounting grooves 2134 are provided on both the first surface 2131 and the second surface 2132.

[0052] For example, such as Figure 4 , Figure 5 As shown, six second mounting slots 2134 are spaced apart along the second direction Y on the first surface 2131, and seven first mounting slots 2133 are spaced apart along the third direction Z on the first surface 2131. It is understood that the embodiments of this application do not limit the number of first mounting slots 2133 and second mounting slots 2134, for example, it can be 1, 2, 3, 4, 5, 6, 7, 8, etc.

[0053] In some embodiments, see Figure 4 , Figure 5 , Figure 6Along the first direction X, the height H2 of the first reinforcing rib 2161 in the first mounting groove 2133 is not higher than the first surface 2131, and the height H2 of the second reinforcing rib 2162 in the second mounting groove 2134 is not higher than the first surface 2131; or, along the first direction X, the height H2 of the first reinforcing rib 2161 in the first mounting groove 2133 is not higher than the second surface 2132, and the height H2 of the second reinforcing rib 2162 in the second mounting groove 2134 is not higher than the second surface 2132. Alternatively, when both the first surface 2131 and the second surface 2132 are provided with multiple first mounting grooves 2133 and multiple second mounting grooves 2134, the height H2 of the first reinforcing rib 2161 in the first mounting groove 2133 is not higher than the first surface 2131, the height H2 of the second reinforcing rib 2162 in the second mounting groove 2134 is not higher than the first surface 2131, and the height H2 of the first reinforcing rib 2161 in the first mounting groove 2133 in the second surface 2132 is not higher than the second surface 2132, and the height H2 of the second reinforcing rib 2162 in the second mounting groove 2134 is not higher than the second surface 2132.

[0054] For example, see Figure 4 , Figure 5 , Figure 6 The depth H3 of the first mounting groove 2133 and the second mounting groove 2134 in the first direction X is 10mm, the length L3 of the bottom of the first mounting groove 2133 in the second direction Y is 10mm, and the length L4 of the bottom of the second mounting groove 2134 in the third direction Z is 10mm. At this time, the height H2 of the first reinforcing rib 2161 and the second reinforcing rib 2162 in the first direction X is not more than 10mm, the length of the bottom of the first reinforcing rib 2161 in the second direction Y is not more than 10mm, and the length of the bottom of the second reinforcing rib 2162 in the third direction Z is not more than 10mm.

[0055] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A type of security door leaf, characterized in that, include: First shell; A second housing is provided, wherein the first housing and the second housing are connected, and the first housing and the second housing together form an accommodating cavity; A graphite polystyrene board, wherein the graphite polystyrene board is filled within the accommodating cavity; Along the first direction, the graphite polystyrene board includes a first surface and a second surface, the first surface being attached to the first housing and the second surface being attached to the second housing; It includes multiple support portions, which are spaced apart on the first surface and / or the second surface. Along the first direction, the multiple support portions are disposed between the first surface and the first housing, and / or, the multiple support portions are disposed between the second surface and the second housing.

2. The security door leaf as described in claim 1, characterized in that, The security door leaf includes an adhesive layer, which is disposed between the first surface and the first housing along the first direction, and / or the adhesive layer is disposed between the second surface and the second housing.

3. The anti-theft door leaf as described in claim 2, characterized in that, The adhesive layer is applied to the first surface and / or the second surface to fill the gaps in the first surface and / or the second surface.

4. The security door leaf as described in claim 1, characterized in that, Each of the support portions includes a plurality of first reinforcing ribs and a plurality of second reinforcing ribs. The plurality of first reinforcing ribs are spaced apart along a second direction, and each of the first reinforcing ribs extends along a third direction. The plurality of second reinforcing ribs are spaced apart along the third direction, and each of the second reinforcing ribs extends along the second direction. The plurality of first reinforcing ribs and the plurality of second reinforcing ribs intersect each other.

5. The anti-theft door leaf as described in claim 4, characterized in that, The graphite polystyrene board includes a plurality of first mounting slots and a plurality of second mounting slots. Each first mounting slot is provided with a first reinforcing rib, and each second mounting slot is provided with a second reinforcing rib. The plurality of first mounting slots and the plurality of second mounting slots intersect each other in the same plane. The plurality of first mounting slots are spaced apart on the first surface along the second direction, and the plurality of second mounting slots are spaced apart on the first surface along the third direction, and / or the plurality of first mounting slots are spaced apart on the second surface along the second direction, and the plurality of second mounting slots are spaced apart on the second surface along the third direction.

6. The security door leaf as described in claim 5, characterized in that, Along the first direction, the height of the first reinforcing rib in the first mounting groove is not higher than the first surface, and the height of the second reinforcing rib in the second mounting groove is not higher than the first surface; and / or, along the first direction, the height of the first reinforcing rib in the first mounting groove is not higher than the second surface, and the height of the second reinforcing rib in the second mounting groove is not higher than the second surface.

7. A security door, characterized in that, Including the door leaf of the security door as described in any one of claims 1-6.