Core section structure of building material outdoor floor and steel-plastic floor profile

Abstract

The utility model relates to building material outdoor floor technology field more specifically, it relates to a kind of core material cross section structure and steel plastic floor section of outdoor floor, including zinc-aluminum-magnesium plated steel plate body, the cavity is formed by the two ends of zinc-aluminum-magnesium plated steel plate body opposite bending, the opposite two side walls of the cavity are all recessed and set with assembling groove inward, the assembling groove is used to assemble with keel, further including adhesive layer, plastic surface layer, the adhesive layer is used to fixedly connect the steel plate body with the plastic surface layer, the plastic surface layer is set on the outside of the steel plate body, by adopting zinc-aluminum-magnesium plated steel plate as core material material, and by improving its cross section structure, using rolling forming processing technology makes core material cross section form cavity structure, it is favorable to simplify the processing flow and cost of assembled floor, secondly, the length of core material can be flexibly adjusted by rolling forming process, improve material utilization, improve processing flexibility, can improve product market competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of building materials outdoor flooring technology, and in particular to a core material cross-sectional structure and steel-plastic flooring profile for building materials outdoor flooring. Background Technology

[0002] Flooring, the surface layer of a house's ground or floor, can be divided into solid wood flooring and engineered wood flooring according to its structure. Solid wood flooring is made from natural wood that has been dried and processed, and has natural texture and a comfortable feel underfoot. However, its main disadvantage is that it is less durable against moisture and sunlight. Moist environments can easily cause the wood to swell, leading to gaps between the boards and even warping and deformation.

[0003] To overcome the shortcomings of solid wood flooring, composite flooring was developed. Its typical structure consists of a core material, an adhesive layer, and a surface plastic layer. During processing, the adhesive layer is first coated onto the core material, then molten plastic is applied on top, and the layers are firmly bonded together after cooling and solidification. Because plastic is thermoplastic, it can be hot-pressed to create three-dimensional textures such as wood grain, and different colors can be achieved by mixing the plastic layers. Common composite flooring includes wood-plastic composite flooring and aluminum-plastic composite flooring; the main difference between the two lies in the material of their core materials.

[0004] Aluminum-plastic composite panels, with their excellent processability, fire resistance, and rich color selection, have become a popular new type of building decoration material, widely used in building exterior walls, interior decoration, flooring, advertising display stands, and other applications. Taking a non-slip, weather-resistant outdoor aluminum-plastic floor with publication number CN223468985U as an example, its core material is made of aluminum alloy, giving the flooring high strength, while the surface layer uses thermoplastic elastomer, giving the flooring high elasticity, wear resistance, oil resistance, and chemical corrosion resistance, making it particularly suitable for outdoor environments.

[0005] Currently, aluminum alloy core materials are mostly produced using extrusion molding. Aluminum ingots are heated to soften and then extruded under high pressure through a specific die opening to form profiles with consistent cross-sections. While this process can form complex structures in one step, it presents significant cost issues when used for producing relatively simple components like flooring core materials. First, the design and manufacturing of extrusion dies require high precision and are expensive; even with simple cross-sectional structures, custom-made dies are still necessary. Second, while extrusion is suitable for continuous production of long profiles with fixed cross-sections, actual installation requires cutting to different lengths based on site dimensions, resulting in significant cutting waste and scrap. This is particularly problematic for small apartments and irregularly shaped flooring installations, where low material utilization further increases installation costs.

[0006] Therefore, it is urgent to optimize the design from both the cross-sectional structure and material selection of the core material to develop a new core material solution with lower cost and greater adaptability to meet the needs of diverse flooring applications. Utility Model Content

[0007] In order to reduce the processing cost of the core material and improve its adaptability, this application provides a core material cross-sectional structure for outdoor building flooring and a steel-plastic flooring profile.

[0008] In a first aspect, the present invention provides a core material cross-sectional structure for outdoor flooring, which adopts the following technical solution: A core material cross-sectional structure for outdoor building flooring includes a steel plate body. The two ends of the steel plate body are bent towards each other to form a cavity. The opposing side walls of the cavity are recessed inward and provided with assembly grooves for assembly with joists.

[0009] Preferably, the inner wall of the cavity is square, and the steel plate body is bent inward at a U-shape to form the assembly groove.

[0010] Preferably, at least one end of the steel plate body is bent toward the inner bottom wall of the cavity to form a support portion, and the support portion divides the cavity into a first chamber and a second chamber.

[0011] Preferably, the steel plate body is provided with an extension portion, which extends from one end of the support portion near the bottom wall of the cavity, and the extension portion is arranged parallel to the bottom wall of the cavity.

[0012] Preferably, the lateral length of the extension is 4 to 6 times the thickness of the steel plate body.

[0013] Preferably, the two ends of the steel plate body are bent toward the inner bottom wall of the cavity to form two sets of support parts, and the two sets of extension parts connected to the two sets of support parts are arranged in a mirror image.

[0014] Preferably, the ends of the two sets of support portions furthest from the extension portion are welded together.

[0015] Preferably, the width of the inner top wall of the cavity is smaller than the width of the inner bottom wall of the cavity, and the width of the inner top wall of the assembly groove is smaller than the width of the inner bottom wall of the cavity.

[0016] Preferably, the steel plate body is a zinc-aluminum-magnesium alloy steel plate.

[0017] Secondly, the steel-plastic flooring profile provided by this utility model adopts the following technical solution: A steel-plastic flooring profile includes the core material cross-sectional structure of the aforementioned building material outdoor flooring, and further includes an adhesive layer and a plastic surface layer. The adhesive layer is used to fix and connect the steel plate body and the plastic surface layer, and the plastic surface layer is disposed on the outside of the steel plate body.

[0018] The beneficial effects of this utility model are as follows: By using steel plates as the core material and improving their cross-sectional structure, a bending process is used to process the core material cross-section to form a cavity structure. This solves the problems of complex mold design and high cost associated with the aluminum extrusion molding process in existing technologies. It helps to simplify the processing flow and reduce costs of interlocking flooring. Secondly, the bending process allows for flexible adjustment of the core material length, improving material utilization, reducing scrap, and increasing processing flexibility. This makes it suitable for different interlocking area requirements and enhances the product's market competitiveness.

[0019] The support and extension sections create a stable double-support structure inside the cavity, which can transfer the load from the upper surface of the floor to the base plate, thus improving the integrity, rigidity, and load-bearing capacity of the core material.

[0020] By using zinc-aluminum-magnesium coated steel sheet as the core material, it has high strength, low coefficient of thermal expansion, stable structure, and can be laid with tight joints. The core material is rolled and formed, which can be produced continuously and with high production efficiency. Attached Figure Description

[0021] Figure 1 This is the core material cross-section in Embodiment 1 of this application. Figure 1 ; Figure 2 yes Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a perspective view of the core material in Embodiment 1 of this application; Figure 4 yes Figure 3 A magnified view of a section at point B in the middle; Figure 5 This is a partial three-dimensional representation of the core material in Embodiment 1 of this application. Figure 1 ; Figure 6 This is the core material cross-section in Embodiment 1 of this application. Figure 2 ; Figure 7 This is a partial three-dimensional representation of the core material in Embodiment 1 of this application. Figure 2 ; Figure 8 This is a schematic diagram of the floor in Embodiment 2 of this application; Figure 9 yes Figure 8 A magnified view of a section at point C; Figure 10 This is the front view in Embodiment 2 of this application; Figure 11 This is a partial enlarged view of the floor in Embodiment 2 of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. Steel plate body; 2. Cavity; 201. First chamber; 202. Second chamber; 3. Assembly groove; 4. Support part; 401. Weld point; 5. Extension part; 6. Adhesive layer; 7. Plastic surface layer; 8. Recessed part. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so as to intuitively and vividly understand each technical feature and overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0024] In the description of this application, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this application and simplifying the description, and does 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, and therefore should not be construed as a limitation of this application. When a feature is referred to as "set," "fixed," or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0025] In the description of this application, if directional descriptions are involved, such as "lateral," "longitudinal," or "vertical," indicating directional or positional relationships, these are based on the appendix. Figure 8 The orientation or positional relationship shown is represented by the X-axis as "horizontal", the Y-axis as "vertical", and the Z-axis as "vertical".

[0026] In the description of this application, the term "several" means one or more, and "more than" means two or more. The terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number, while "above," "below," and "within" should be understood as including the stated number. The terms "first" and "second" should be understood as distinguishing technical features and not as indicating or implying relative importance, the number of indicated technical features, or the order of the indicated technical features.

[0027] Furthermore, unless otherwise defined, the technical and scientific terms used in this application have the same meanings as commonly understood by one of ordinary skill in the art. The terminology used in this application is for the purpose of describing particular embodiments only and not for limiting the application. It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0028] Example 1: As Figure 1-7 As shown, a core material cross-sectional structure of an outdoor building material floor includes a steel plate body 1. The two transverse ends of the steel plate body 1 are bent towards each other to form a cavity 2. The two transverse opposite side walls of the cavity 2 are recessed inward and provided with assembly grooves 3. The assembly grooves 3 are used for assembly with the joists. Specifically, they are connected to the joists by buckles. The two transverse ends of the buckles are used to limit and fix the assembly grooves 3 of two adjacent floorboards, thereby assembling the floorboards with the joists.

[0029] By using steel plates as the core material and improving their cross-sectional structure, a hollow cavity structure is formed by processing the core material cross-section using a bending process. This solves the problems of complex mold design and high cost associated with the aluminum extrusion molding process in existing technologies. It helps to simplify the processing flow and reduce costs of the interlocking floor. Secondly, the bending process allows for flexible adjustment of the core material length, improving material utilization, reducing scrap, and increasing processing flexibility. This makes it suitable for different interlocking area requirements and enhances the product's market competitiveness.

[0030] To facilitate bending of the steel plate body 1, the inner wall of the cavity 2 is square. The steel plate body 1 is bent inward at a U-shape to form the assembly groove 3. By designing the inner walls of the cavity 2 and the assembly groove 3 as square structures, it is easy to use a bending machine for right-angle bending, which facilitates the bending and forming of the core material, thus improving production efficiency and consistency. Secondly, the square cavity 2 structure can improve the load-bearing capacity and deformation resistance of the floor. Furthermore, the U-shaped right-angle bend to form the assembly groove 3 makes the inner bottom wall of the assembly groove 3 flat. During assembly, it can be engaged with the keel clips through the clips, which helps to improve the flatness and connection firmness of the floor after assembly, and avoids loosening or abnormal noise.

[0031] Furthermore, in order to improve the structural rigidity of the core material, the steel plate body 1 is bent laterally at least one end toward the inner bottom wall of the cavity 2 to form a support part 4. The support part 4 divides the cavity 2 into a first chamber 201 and a second chamber 202. The support part 4 formed by bending the steel plate body 1 improves the overall structural rigidity and stability of the core material, making the structure more stable and helping to extend the service life of the floor.

[0032] To increase the contact area between the support part 4 and the inner bottom wall of the cavity 2, the steel plate body 1 is provided with an extension part 5. The extension part 5 extends from one end of the support part 4 near the inner bottom wall of the cavity 2. The extension part 5 is attached to and parallel to the inner bottom wall of the cavity 2. By providing the extension part 5 that is attached to and parallel to the inner bottom wall, the contact area between the end of the support part 4 and the bottom plate is increased, which helps to enhance the compressive strength and overall stability of the core material cross-section structure. Secondly, by forming the support part 4 with the extension part 5 through the bending process, the strength of the core material cross-section structure is improved without significantly increasing the complexity of the process.

[0033] Regarding the specific structural design of the extension 5, the transverse length of the extension 5 is 4 to 6 times the thickness of the steel plate body 1, preferably 5.2 times. Through the structural design of the extension 5, the extension 5 can achieve surface contact and fit with the inner bottom wall of the cavity 2, which helps to achieve load diffusion and improve the cross-sectional structural strength of the core material.

[0034] In this embodiment, the two transverse ends of the steel plate body 1 are bent toward the inner bottom wall of the cavity 2 to form two sets of support parts 4. The two sets of extension parts 5 connected to the two sets of support parts 4 are arranged in a mirror image, that is, the two sets of extension parts 5 extend laterally to the left and right along the inner bottom wall of the cavity 2. By setting two sets of mirror symmetrical extension parts 5, a stable double support structure is formed inside the cavity 2, which can transfer the load from the upper surface of the floor to the inner bottom wall of the cavity 2.

[0035] Furthermore, in order to improve the connection stability of the two sets of support parts 4, the ends of the two sets of support parts 4 away from the extension part 5 are welded together to form a weld point 401. By welding the top ends of the two sets of support parts 4 together, the risk of the support parts 4 tilting laterally when the core material is subjected to vertical load is reduced, which helps to improve the integrity, rigidity and load-bearing capacity of the core material.

[0036] In this embodiment, the welding points 401 of the support part 4 are arranged at intervals. The longitudinal distance between two adjacent sets of welding points 401 is 2.5 to 3 times the vertical height of the support part 4, preferably 2.8 times. Under the premise of ensuring structural connection strength, the damage of the welding heat-affected zone to the steel plate body 1 is reduced, the welding deformation is effectively controlled, and the dimensional accuracy of the core material is guaranteed.

[0037] To facilitate floor assembly, the transverse width of the inner top wall of cavity 2 is smaller than the transverse width of the inner bottom wall of cavity 2, and the transverse width of the inner top wall of assembly groove 3 is smaller than the transverse width of the inner bottom wall of assembly groove 3. By designing the core material cross-section structure as a structure that is wider at the top and narrower at the bottom, the top of the floor can fit together during floor assembly, while the bottom has reserved installation positions for clips and joists, which facilitates the floor assembly operation. Secondly, the structural design of assembly groove 3 facilitates the assembly of clips, and the inner top wall of assembly groove 3 can increase the contact area with the clips, thereby enhancing the reliability of the connection.

[0038] Regarding the specific selection of the steel plate body 1, the steel plate body 1 is a zinc-aluminum-magnesium alloy steel plate. Since zinc-aluminum-magnesium alloy has corrosion resistance far exceeding that of ordinary galvanized steel, it can enhance the durability of the floor core material and reduce the risk of structural damage caused by core material corrosion.

[0039] The horizontal centerline of the assembly groove 3 coincides with the horizontal centerline of the steel plate body 1, achieving a balance in force transmission. This allows the load from above to be transferred vertically from the core material to the joists and base layer via the assembly groove 3, reducing the possibility of torsion or warping caused by force eccentricity and improving the flatness of the floor assembly. The symmetry axes of the two sets of support parts 4 coincide with the vertical centerline of the steel plate body 1, which helps to symmetrically distribute the vertical load, allowing the load to be evenly distributed to the support parts 4 and extension parts 5 on both sides, reducing the risk of stress concentration caused by structural asymmetry.

[0040] like Figure 6 , Figure 7 As shown, further, in order to improve the structural strength of the core material 1, the top wall of the cavity 2 is recessed inward with a recessed portion 8. There are two sets of recessed portions 8, which are located on the first chamber 201 and the second chamber 202 respectively. The recessed portion increases the moment of inertia of the cavity top wall section in the direction of force, which helps to improve the bending resistance of the core material. Secondly, the recessed portion 8 can provide a space for the adhesive layer 7, thereby helping to improve the bonding strength of the plastic surface layer 7.

[0041] Regarding the specific structural design of the recessed portion 8, the transverse length of the recessed portion 8 is 0.14 to 0.17 times the transverse length of the inner wall of the cavity 2, preferably 0.16 times, and the vertical depth of the recessed portion 8 is 2 to 2.2 times the thickness of the steel plate body 1, preferably 2.1 times.

[0042] Example 2: As Figure 1-11 As shown, a steel-plastic flooring profile includes the core material cross-sectional structure of an outdoor building material floor in Example 1, and also includes an adhesive layer 6 and a plastic surface layer 7. The adhesive layer 6 is used to fix and connect the steel plate body 1 and the plastic surface layer 7, and the plastic surface layer 7 is disposed on the outside of the steel plate body 1.

[0043] When the solder joints 401 are arranged at intervals, the gap between the support parts 4 can be covered by the adhesive layer 6 when the adhesive layer 6 is applied, thereby completing the bonding.

[0044] By using zinc-aluminum-magnesium alloy steel plates as the core material and performing bending processing, the processing cost of the core material can be reduced, the processing flexibility can be improved, and the product's market competitiveness can be enhanced.

[0045] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A core material cross-sectional structure for outdoor building flooring, characterized in that: It includes a steel plate body, the two ends of which are bent towards each other to form a cavity, and the opposing side walls of the cavity are recessed inward and provided with assembly grooves, which are used for assembly with the keel.

2. The core material cross-sectional structure of an outdoor building material flooring according to claim 1, characterized in that: The inner wall of the cavity is square, and the steel plate body is bent inward at a U-shape to form the assembly groove.

3. The core material cross-sectional structure of an outdoor building material flooring according to claim 1, characterized in that: The steel plate body is bent at least one end toward the inner bottom wall of the cavity to form a support portion, which divides the cavity into a first chamber and a second chamber.

4. The core material cross-sectional structure of an outdoor building material flooring according to claim 3, characterized in that: The steel plate body is provided with an extension, which extends from one end of the support near the bottom wall of the cavity and is parallel to the bottom wall of the cavity.

5. The core material cross-sectional structure of an outdoor building material floor according to claim 4, characterized in that: The lateral length of the extension is 4 to 6 times the thickness of the steel plate body.

6. The core material cross-sectional structure of an outdoor building material floor according to claim 4 or 5, characterized in that: The two ends of the steel plate body are bent toward the inner bottom wall of the cavity to form two sets of support parts, and the two sets of extension parts connected to the two sets of support parts are arranged in a mirror image.

7. The core material cross-sectional structure of an outdoor building material floor according to claim 6, characterized in that: The ends of the two sets of support portions furthest from the extension portion are connected by welding.

8. The core material cross-sectional structure of an outdoor building material floor according to claim 1, characterized in that: The width of the inner top wall of the cavity is smaller than the width of the inner bottom wall of the cavity, and the width of the inner top wall of the assembly groove is smaller than the width of the inner bottom wall of the cavity.

9. The core material cross-sectional structure of an outdoor building material floor according to claim 1, characterized in that: The steel plate body is a zinc-aluminum-magnesium coated steel plate, and the top wall of the cavity is recessed inward.

10. A steel-plastic flooring profile, comprising the core material cross-sectional structure of an outdoor building material floor as described in any one of claims 1 to 9, characterized in that: It also includes an adhesive layer and a plastic surface layer. The adhesive layer is used to fix the steel plate body to the plastic surface layer, and the plastic surface layer is disposed on the outside of the steel plate body.

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