Bionic wallboard unit and preparation method thereof

Abstract

The bionic wallboard unit comprises a heat preservation layer, a bearing layer, a heat insulation layer and a protection layer, and a plurality of honeycomb cavities are formed in the outer side of the heat preservation layer; the bearing layer is arranged on the outer side of the heat preservation layer, and a plurality of parallel reinforcing protruding ribs are arranged on the outer side of the bearing layer. The heat insulation layer is sprayed on the outer side of the bearing layer and is used for bonding the bearing layer and the protection layer, so that the connection between the heat insulation layer and the bearing layer and the connection between the heat insulation layer and the bearing layer are jointly ensured by the chemical bonding force between the heat insulation layer and the bearing layer and the mechanical occlusal force formed by the reinforcing convex ribs; the protection layer is arranged on the outer side of the heat insulation layer, and a plurality of grooves matched with the reinforcing protruding ribs are formed in the inner side of the protection layer in parallel. Each layer structure of the wallboard unit provided by the embodiment is connected in parallel, the function is independent, and the function failure of the whole wallboard caused by the failure of a single layer structure can be avoided; the partition design of the inner cavity structure and the outer heat insulation coating reduces the heat transfer coefficient of the wallboard, and simultaneously reduces the thickness of the cavity and the thickness of the coating, so that high heat preservation is realized by the thin wallboard.

Description

Technical Field

[0001] The invention relates to the field of construction, and in particular to a bionic wall panel unit and a preparation method thereof. Background Art

[0002] With the increase of residential, apartment, office, teaching, hospital and other buildings in my country, the requirements for building sound insulation and thermal insulation are getting higher and higher. Ordinary wall materials cannot effectively isolate the sound insulation problem caused by vibration. Good sound insulation and thermal insulation environment have become one of the important characteristics of green buildings. Therefore, various structures of exterior wall panels are continuously introduced and widely used in the construction industry.

[0003] At present, the connection strength between the existing exterior wall panel layer structures is not high, which makes the wall panels easy to be damaged and fall off frequently. It is impossible to ensure that the insulation structure has the same service life as the main building structure. In addition, there are problems such as poor sound insulation and thermal insulation effects and heavy panel weight. Summary of the invention

[0004] The purpose of the present invention is to provide a bionic wall panel unit and a preparation method in view of the defects of the prior art. The layer structure specifically includes an insulation layer, a bearing layer, a heat insulating layer and a protective layer, which has strong sound insulation and heat insulation effects. At the same time, a plurality of parallel reinforcing ribs are provided on the outer side of the bearing layer, and a plurality of parallel grooves matching the reinforcing ribs are provided on the inner side of the protective layer. The chemical bonding force and mechanical bite force formed between the protective layer and the heat insulating layer jointly ensure the connection between the two layers, thereby ensuring the strength of the wall panel unit; further, each layer structure is connected in parallel with independent functions, which can effectively avoid the failure of the overall wall panel function caused by the failure of a single layer structure; the partitioned design of the inner cavity structure and the outer heat insulation coating can greatly reduce the heat transfer coefficient of the wall panel while simultaneously reducing the cavity thickness and the coating thickness, thereby achieving high thermal insulation with a thin wall panel.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a bionic wall panel unit and a preparation method thereof, comprising: a thermal insulation layer, a load-bearing layer, a heat insulating layer and a protective layer; wherein:

[0006] The outer side of the thermal insulation layer is provided with a plurality of honeycomb cavities, and the upper side plate and the lower side plate of the thermal insulation layer are respectively provided with thermal insulation layer positioning ribs or thermal insulation layer positioning grooves;

[0007] The bearing layer is arranged on the outside of the heat-insulating layer, and a plurality of parallel reinforcing ribs are arranged on the outside of the bearing layer. The adjacent two side plates of the bearing layer are provided with bearing layer positioning ribs, and the corresponding two side plates are provided with bearing layer positioning grooves;

[0008] The heat insulation layer is sprayed on the outside of the bearing layer to bond the bearing layer and the protective layer, whereby the chemical bonding force between the heat insulation layer and the bearing layer and the mechanical bite force formed by the reinforcing ribs jointly ensure the connection between the two layers;

[0009] The protective layer is arranged on the outside of the thermal insulation layer, and a plurality of grooves adapted to the reinforcing ribs are arranged in parallel on the inside of the protective layer, thereby the chemical bonding force and mechanical bite force between the protective layer and the thermal insulation layer jointly ensure the connection between the two layers; the upper side plate and the lower side plate of the protective layer are respectively provided with protective layer positioning ribs or protective layer positioning grooves.

[0010] Preferably, the thermal insulation layer positioning ribs and the protective layer positioning ribs are both arc-shaped ribs; the thermal insulation layer positioning grooves and the protective layer positioning grooves are both arc-shaped grooves.

[0011] Preferably, the inner sides of the side panels around the thermal insulation layer are all chamfered; and the outer sides of the side panels around the protective layer are all chamfered.

[0012] Preferably, the bearing layer positioning rib is a trapezoidal rib, and the bearing layer positioning groove is a trapezoidal groove.

[0013] Preferably, the reinforcing ribs of the bearing layer are trapezoidal ribs, and both bottom corners of the trapezoidal ribs are chamfered.

[0014] Preferably, the insulation layer is made of gypsum or concrete, the outer diameter of the honeycomb cavity is 100-150 mm, the height is 30-50 mm, and the thickness of the honeycomb wall, side plate and bottom plate are all 6-15 mm.

[0015] Preferably, the material of the bearing layer is ordinary concrete or UHPC.

[0016] Preferably, the thermal insulation layer is made of aerogel with a thickness of 1-2 mm; the protective layer is made of concrete with a thickness greater than 10 mm.

[0017] Preferably, anchors are provided at the four corners of the thermal insulation layer and at the intersections of the honeycomb cavity arms for anchoring into the bearing layer to increase the mechanical anchoring force between the thermal insulation layer and the bearing layer.

[0018] In a second aspect, an embodiment of the present invention further provides a method for preparing the bionic wall panel unit described in the first aspect, the method comprising:

[0019] Preparation of insulation layer: The insulation layer is prefabricated and umbrella-shaped anchors are embedded at the intersection of the four corners and the cavity wall;

[0020] Preparation of the bearing layer: The bearing layer is molded. Before the material is initially solidified, the prefabricated insulation layer is placed on the inner side of the bearing layer, and the umbrella-shaped anchor is anchored into the bearing layer by no less than 15 mm and the hollow wall is no less than 2 mm deep into the bearing layer. Thus, the chemical bonding force and mechanical anchoring force between the insulation layer and the bearing layer jointly ensure the connection between the two layers; the bearing layer material is demoulded;

[0021] Preparation of thermal insulation layer: Aerogel coating is evenly applied to the outer large surface of the load-bearing layer with a thickness of 1-2mm. The chemical bonding force between the thermal insulation layer and the load-bearing layer and the mechanical bite force formed by the convex ribs jointly ensure the connection between the two layers;

[0022] Preparation of protective layer: After the thermal insulation layer solidifies, the protective layer is cast with formwork, whereby the chemical bonding force and mechanical bite force between the protective layer and the thermal insulation layer jointly ensure the connection between the two layers; the protective layer material is demolded to obtain the wall panel unit.

[0023] A bionic wall panel unit and a preparation method are provided in an embodiment of the present invention. The layer structure of the bionic wall panel unit specifically includes a thermal insulation layer, a bearing layer, a heat insulating layer and a protective layer, and has strong sound insulation and heat insulation effects. At the same time, a plurality of parallel reinforcing ribs are provided on the outer side of the bearing layer, and a plurality of parallel grooves matching the reinforcing ribs are provided on the inner side of the protective layer. The chemical bonding force and mechanical bite force formed between the protective layer and the heat insulating layer jointly ensure the connection between the two layers, thereby ensuring the strength of the wall panel unit; further, each layer structure is connected in parallel with independent functions, which can effectively avoid the failure of the overall wall panel function caused by the failure of a single layer structure; the partitioned design of the inner cavity structure and the outer heat insulation coating can greatly reduce the heat transfer coefficient of the wall panel while simultaneously reducing the cavity thickness and the coating thickness, thereby achieving high thermal insulation with a thin wall panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of an explosion of a bionic wall panel unit provided by an embodiment of the present invention;

[0025] Figure 2 A schematic cross-sectional view of a bionic wall panel unit provided by an embodiment of the present invention;

[0026] Figure 3 A schematic structural diagram of a thermal insulation layer provided by an embodiment of the present invention;

[0027] Figure 4 An enlarged schematic diagram of a thermal insulation layer A region provided by an embodiment of the present invention;

[0028] Figure 5 An enlarged schematic diagram of a thermal insulation layer B region provided by an embodiment of the present invention;

[0029] Figure 6 A structural schematic diagram of a bearing layer provided by an embodiment of the present invention;

[0030] Figure 7 An enlarged schematic diagram of a bearing layer A region provided by an embodiment of the present invention;

[0031] Figure 8 An enlarged schematic diagram of a bearing layer B region provided in an embodiment of the present invention;

[0032] Fig. 9 An enlarged schematic diagram of a bearing layer C region provided by an embodiment of the present invention;

[0033] Fig.10 A schematic structural diagram of a heat insulation layer provided by an embodiment of the present invention;

[0034] Fig.11 A schematic diagram of the structure of a protective layer provided by an embodiment of the present invention;

[0035] Fig.12 An enlarged schematic diagram of a protective layer A region provided by an embodiment of the present invention;

[0036] Fig.13 An enlarged schematic diagram of a protective layer B region provided in an embodiment of the present invention;

[0037] Fig.14 A flow chart of a method for preparing a wall panel unit provided by an embodiment of the present invention;

[0038] Fig.15 A schematic diagram of a process for preparing a wall panel unit provided by an embodiment of the present invention;

[0039] Fig.16 A flow chart of a wallboard preparation method based on a bionic wallboard unit provided in an embodiment of the present invention;

[0040] Fig.17 A schematic diagram of a wallboard preparation process method based on a bionic wallboard unit provided in an embodiment of the present invention;

[0041] Fig.18 for Fig.17 A magnified schematic diagram of the middle A area;

[0042] Fig.19 for Fig.17 A magnified schematic diagram of the middle B area;

[0043] Fig. 20 for Fig.17 Enlarged schematic diagram of the middle C area;

[0044] Fig.21 for Fig.17 Enlarged schematic diagram of area D in the middle. DETAILED DESCRIPTION

[0045] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

[0046] Figure 1 A schematic diagram of an explosion of a bionic wall panel unit provided by an embodiment of the present invention, Figure 2 A schematic cross-sectional view of a bionic wall panel unit provided in an embodiment of the present invention, combined with Figure 1 and Figure 2 As shown, a bionic wall panel unit provided by an embodiment of the present invention comprises a heat preservation layer 1, a bearing layer 2, a heat insulating layer 3 and a protective layer 4 from the inner to the outer layer structure, and the layer structure of the wall panel unit is specifically introduced below.

[0047] Insulation layer 1, such as Figures 3 to 5 As shown, it is a cavity honeycomb structure, specifically, a plurality of honeycomb cavities are provided on the outer side of the insulation layer 1, and the plurality of honeycomb cavities are arranged horizontally and vertically. It should be noted that, in the present embodiment, the insulation layer 1 adopts a quadrilateral structure, and its upper side and lower side are respectively referred to as the upper side plate and the lower side plate. In order to realize the splicing between the wall panel units, the upper side plate and the lower side plate of the insulation layer 1 are respectively provided with insulation layer positioning ribs 11 or insulation layer positioning grooves 12 for auxiliary positioning. It can be understood that the upper side plate is provided with insulation layer positioning ribs 11, and the lower side plate is provided with insulation layer positioning grooves 12, or the upper side plate is provided with insulation layer positioning grooves 12, and the lower side plate is provided with positioning ribs, so as to realize the splicing between the insulation layers 1 of adjacent wall panel units. The insulation layer positioning ribs 11 are preferably arc-shaped ribs, and the insulation layer positioning grooves 12 are preferably arc-shaped grooves. In a preferred implementation, the inner sides of the side plates around the insulation layer 1 are chamfered to assist positioning, and the chamfer can be 2mm. Furthermore, in this embodiment, the insulation layer 1 is made of gypsum or concrete, the outer diameter of the honeycomb cavity is 100-150mm, the height is 30-50mm, the honeycomb wall thickness, side plate thickness, and bottom plate thickness are all 6-15mm, and the insulation layer 1 adopts lightweight and high-strength insulation materials to meet the multi-scale pore structure required for hanging heavy objects on indoor walls, and the material pores and macroscopic cavity structure are observed, thereby passively adjusting the indoor humid and hot environment and isolating outdoor noise.

[0048] Bearing layer 2, such as Figures 6 to 9As shown, it is a solid wall panel, which is arranged on the outside of the insulation layer 1. The outside of the bearing layer 2 is provided with a plurality of parallel reinforcing ribs 21, and the plurality of reinforcing ribs 21 are arranged at equal intervals. Preferably, the reinforcing ribs 21 of the bearing layer 2 are trapezoidal ribs, and the two bottom corners of the trapezoidal ribs are chamfered. The reinforcing ribs 21 adopt a joint bone-like appearance design, which provides internal and external constraints on the wall panel plane while minimizing the stress concentration phenomenon at the edges and corners, and can give full play to its own strength. The adjacent two side panels of the bearing layer 2 are provided with bearing layer positioning ribs 22, and the corresponding two side panels are provided with bearing layer positioning grooves 23. When the wall panel units are spliced, the bearing layer positioning ribs 22 and the bearing layer positioning grooves 23 here play the main positioning role. Preferably, the bearing layer positioning ribs 22 are trapezoidal ribs, and the bearing layer positioning grooves 23 are trapezoidal grooves. It should be noted that in the present embodiment, the bearing layer 2 is a quadrilateral structure, and its upper side, lower side, left side, and right side are collectively referred to as side panels, which are respectively an upper side panel, a lower side panel, a left side panel, and a right side panel. Specifically, bearing layer positioning ribs 22 can be provided on the upper side panel and the right side panel, and corresponding bearing layer positioning grooves 23 can be provided on the lower side panel and the left side panel, or bearing layer positioning grooves 23 can be provided on the upper side panel and the right side panel, and corresponding positioning ribs 22 can be provided on the lower side panel and the left side panel. The material of the bearing layer 2 of the present embodiment is preferably ordinary concrete or UHPC. UHPC is a cement-based engineering material. UHPC has good durability and excellent wear resistance and anti-explosion performance. The bearing layer 2 adopts ultra-high strength wall materials, which meets the self-bearing requirements of the wall panels while resisting the internal and external loads of the wall plane. The upper convex and lower concave interlocking mechanism not only meets the requirements of rapid assembly construction of wall panels, but also ensures reliable connection between panels.

[0049] In a preferred embodiment, in order to ensure the connection strength between the insulation layer 1 and the bearing layer 2, anchors are provided at the four corners of the insulation layer 1 and the intersection of the honeycomb cavity arms for anchoring into the bearing layer 2 to increase the mechanical anchoring force between the insulation layer 1 and the bearing layer 2.

[0050] Insulation layer 3, such as Fig.10 As shown, it is sprayed on the outer large surface of the bearing layer 2, preferably a thin film structure, used to bond the bearing layer 2 and the protective layer 4, so that the chemical bonding force between the heat insulation layer 3 and the bearing layer 2 and the mechanical bite force formed by the reinforcing ribs 21 jointly ensure the connection between the two layers. The material of the heat insulation layer 3 of this embodiment is preferably aerogel, which has good sound insulation, heat preservation and heat insulation effects, and a thickness of 1-2mm. The heat insulation layer 3 uses a high thermal resistance, strong fire-resistant thin layer material to reduce the impact of outdoor temperature fluctuations on the indoor thermal environment and play a thermal protection function.

[0051] Protective layer 4, such as Figures 11 to 13As shown, it is a solid thin plate, which is arranged on the outside of the thermal insulation layer 3, and a plurality of grooves 43 compatible with the reinforcing ribs 21 are arranged in parallel on the inner side of the protective layer 4, and the plurality of grooves 43 are arranged at equal intervals. The grooves 43 are snap-fitted with the reinforcing ribs 21 to form a bite, thereby the chemical bonding force and the mechanical bite force between the protective layer 4 and the thermal insulation layer 3 jointly ensure the connection between the two layers; it should be noted that, in this embodiment, the protective layer 4 adopts a quadrilateral structure, and its upper and lower sides are respectively called the upper side plate and the lower side plate. In order to realize the splicing between the wall panel units, the upper side plate and the lower side plate of the protective layer 4 are respectively provided with protective layer positioning ribs 41 or protective layer positioning grooves 42. It can be understood that the upper side plate of the protective layer 4 is provided with a protective layer positioning rib 41, and the lower side plate is provided with a protective layer positioning groove 42, or the lower side plate of the protective layer 4 is provided with a protective layer positioning rib 41, and the upper side plate is provided with a protective layer positioning groove 42. The above-mentioned protective layer positioning rib 41 is preferably an arc-shaped rib, and the protective layer positioning groove 42 is preferably an arc-shaped groove. In some preferred embodiments, the outer sides of the side panels around the protective layer 4 are chamfered to assist positioning. The material of the protective layer 4 in this embodiment is concrete, with a thickness greater than 10 mm. The protective layer 4 is made of a material with excellent weather resistance, which ensures that the wall panel has the same service life as the main body of the building structure, and can realize personalized customization of the color and texture of the exterior wall.

[0052] The wall panel unit provided in this embodiment meets the wall panel insulation requirements by thickening the cavity insulation layer 1, which will result in excessive thickness and self-weight of the wall panel, which is not conducive to installation and earthquake resistance; a single thickened high-heat-resistance thermal insulation coating is expensive and difficult to prepare. Studies have shown that the thermal conductivity of each millimeter of thermal insulation coating is 0.015W / m·K, which is equivalent to a multi-cavity insulation layer 1 of about 30mm thick, with a thermal conductivity of 0.2W / m·K, a cavity circumscribed circle diameter of 100mm, and a wall thickness of 20mm. The wall panel unit of this embodiment adopts an inner cavity structure and an outer thermal insulation coating. It is not a simple superposition of two structures, but the result of synchronous optimization of wall materials and layer structures.

[0053] The above is an introduction to the bionic wall panel unit structure provided by an embodiment of the present invention. This embodiment also provides a method for preparing the bionic wall panel unit. Figures 14 to 15 As shown, the preparation method specifically includes the following steps.

[0054] Step 101, preparation of thermal insulation layer: the thermal insulation layer is prefabricated and umbrella-shaped anchors are embedded at the intersections of the four corners and the cavity wall.

[0055] It is understandable that the insulation layer here is prefabricated gypsum or concrete with a honeycomb cavity structure, and umbrella-shaped anchors are embedded inside the insulation layer, specifically at the four corners of the inner side of the insulation layer and the intersection of the honeycomb cavity wall.

[0056] Step 102, preparation of the bearing layer: the bearing layer is molded, and before the material is initially solidified, the prefabricated insulation layer is placed on the inner side of the bearing layer, and the umbrella-shaped anchor is anchored into the bearing layer by no less than 15 mm and the hollow wall is no less than 2 mm deep into the bearing layer, thereby the chemical bonding force and mechanical anchoring force between the insulation layer and the bearing layer jointly ensure the connection between the two layers; the bearing layer material is demolded.

[0057] Specifically, the insulation layer is prefabricated in advance and placed on the bearing layer before the initial solidification of the bearing layer. The insulation layer is embedded in the unsolidified bearing layer to a certain depth (≥2mm) under its own weight, and the transition interface between the two layers forms a chemical bonding force during the solidification process of the bearing layer. The mechanical anchoring force between the two is provided by the anchor and the embedded cavity wall.

[0058] It should be noted that, in this embodiment, when demolding the bearing layer, the demolding is performed when the material strength of the bearing layer reaches 70% of the design strength. Those skilled in the art can set the design strength when demolding according to the material.

[0059] Step 103, preparation of thermal insulation layer: an aerogel coating is selected and evenly applied to the outer large surface of the bearing layer, with a thickness of 1-2 mm, so that the chemical bonding force between the thermal insulation layer and the bearing layer and the mechanical bite force formed by the convex ribs jointly ensure the connection between the two layers.

[0060] Specifically, when applying aerogel, it is necessary to ensure that the coating thickness is uniform and fully covered. Aerogel is a thin layer material with high thermal resistance and strong fire resistance. It can reduce the impact of outdoor temperature fluctuations on the indoor thermal environment and play a thermal protection function.

[0061] Step 104, preparation of the protective layer: after the thermal insulation layer solidifies, the protective layer is cast using a formwork, whereby the chemical bonding force and mechanical bite force between the protective layer and the thermal insulation layer jointly ensure the connection between the two layers; the protective layer material is demolded to obtain a wall panel unit.

[0062] It should be noted that, in this embodiment, when demolding the protective layer, the demolding is performed when the material strength of the protective layer reaches 70% of the design strength. Those skilled in the art can set the design strength when demolding according to the material.

[0063] The wall panel unit and preparation method of this embodiment have the following advantages: the multi-level structure with integrated material-structure design makes full use of its functions to realize the multi-functions of a single wall panel; the integrated design of the wall panel forming process and the connection structure realizes the reliable connection and coordinated work of the structures at each level; the geometric configuration parameters of the structures at each level are optimized under multiple performance objectives to achieve a balance in the performance of the wall panel.

[0064] Furthermore, this embodiment also provides a method for preparing a wall panel based on a bionic wall panel unit, such as Figures 16 to 21 As shown, the wallboard preparation method includes the following steps.

[0065] Step 201, the wall panel units are all laid with the ribs facing downward, and a bonding material cushion layer with a thickness not less than the height of the ribs is laid at the bottom of the first-floor unit to level the contact surface between the wall panel unit and the bottom beam.

[0066] Step 202, according to the seismic resistance level, tie bars are arranged inside the groove of the wall panel unit, and the ends of the tie bars need to be anchored inside the beam; the groove is filled with bonding material to a value of 2 / 3 of the groove height; the convex rib of the overlying wall panel unit is embedded into the groove of the lower unit; the bonding material is evenly squeezed and filled into the cavity between the groove and the convex rib under the self-weight of the overlying unit;

[0067] Step 203, the wall panel units need to be staggered and laid, and the horizontal spacing of the tooth gaps is not less than 1 / 3 of the unit length; the tooth gaps are first embedded with the rib grooves of the wall panel unit, and then connected by grouting with a self-compacting adhesive material;

[0068] Step 204, after the wall panel units are assembled, a caulking agent is used to caulk the chamfered corners of the units.

[0069] A bionic wall panel unit and a preparation method thereof provided in an embodiment of the present invention has a layer structure specifically including a thermal insulation layer, a bearing layer, a heat insulating layer and a protective layer, which has strong sound insulation and heat insulation effects. At the same time, a plurality of parallel reinforcing ribs are provided on the outer side of the bearing layer, and a plurality of parallel grooves matching the reinforcing ribs are provided on the inner side of the protective layer. Thus, the chemical bonding force and mechanical bite force formed between the protective layer and the heat insulating layer jointly ensure the connection between the two layers, thereby ensuring the strength of the wall panel unit; further, each layer structure is connected in parallel with independent functions, which can effectively avoid the failure of the overall wall panel function caused by the failure of a single layer structure; the partitioned design of the inner cavity structure and the outer heat insulation coating can greatly reduce the heat transfer coefficient of the wall panel while simultaneously reducing the cavity thickness and the coating thickness, thereby achieving high thermal insulation with a thin wall panel.

[0070] In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0072] In the descriptions in this specification, the terms "a specific embodiment", "some embodiments", "an embodiment", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bionic wall panel unit, characterized in that: The bionic wall panel unit includes a thermal insulation layer, a load-bearing layer, a heat-insulating layer and a protective layer; wherein, The outer side of the thermal insulation layer is provided with a plurality of honeycomb cavities, and the upper side plate and the lower side plate of the thermal insulation layer are respectively provided with thermal insulation layer positioning ribs or thermal insulation layer positioning grooves; The bearing layer is arranged on the outside of the heat-insulating layer, and a plurality of parallel reinforcing ribs are arranged on the outside of the bearing layer. The adjacent two side plates of the bearing layer are provided with bearing layer positioning ribs, and the corresponding two side plates are provided with bearing layer positioning grooves; The heat insulation layer is sprayed on the outside of the bearing layer to bond the bearing layer and the protective layer, whereby the chemical bonding force between the heat insulation layer and the bearing layer and the mechanical bite force formed by the reinforcing ribs jointly ensure the connection between the two layers; The protective layer is arranged on the outside of the thermal insulation layer, and a plurality of grooves adapted to the reinforcing ribs are arranged in parallel on the inside of the protective layer, thereby the chemical bonding force and mechanical bite force between the protective layer and the thermal insulation layer jointly ensure the connection between the two layers; the upper side plate and the lower side plate of the protective layer are respectively provided with protective layer positioning ribs or protective layer positioning grooves.

2. The bionic wall panel unit according to claim 1, characterized in that: The thermal insulation layer positioning convex ribs and the protective layer positioning convex ribs are both arc-shaped convex ribs; the thermal insulation layer positioning grooves and the protective layer positioning grooves are both arc-shaped grooves.

3. The bionic wall panel unit according to claim 1, characterized in that: The inner sides of the side panels around the thermal insulation layer are all chamfered; the outer sides of the side panels around the protective layer are all chamfered.

4. The bionic wall panel unit according to claim 1, characterized in that: The bearing layer positioning ribs are trapezoidal ribs, and the bearing layer positioning grooves are trapezoidal grooves.

5. The bionic wall panel unit according to claim 1, characterized in that: The reinforcing ribs of the bearing layer are trapezoidal ribs, and both bottom corners of the trapezoidal ribs are chamfered.

6. The bionic wall panel unit according to claim 1, characterized in that: The material of the thermal insulation layer is gypsum or concrete, the outer diameter of the honeycomb cavity is 100-150mm, the height is 30-50mm, and the thickness of the honeycomb wall, side plate and bottom plate are all 6-15mm.

7. The bionic wall panel unit according to claim 1, characterized in that: The material of the bearing layer is ordinary concrete or UHPC.

8. The bionic wall panel unit according to claim 1, characterized in that: The material of the heat insulation layer is aerogel, with a thickness of 1-2 mm; the material of the protective layer is concrete, with a thickness greater than 10 mm.

9. The bionic wall panel unit according to claim 1, characterized in that: Anchors are provided at the four corners of the thermal insulation layer and at the intersections of the honeycomb cavity arms, which are used to anchor into the bearing layer to increase the mechanical anchoring force between the thermal insulation layer and the bearing layer.

10. A method for preparing the bionic wall panel unit according to claims 1 to 9, characterized in that: The preparation method comprises: Preparation of insulation layer: The insulation layer is prefabricated and umbrella-shaped anchors are embedded at the intersection of the four corners and the cavity wall; Preparation of the bearing layer: The bearing layer is molded. Before the material is initially solidified, the prefabricated insulation layer is placed on the inner side of the bearing layer, and the umbrella-shaped anchor is anchored into the bearing layer by no less than 15 mm and the hollow wall is no less than 2 mm deep into the bearing layer. Thus, the chemical bonding force and mechanical anchoring force between the insulation layer and the bearing layer jointly ensure the connection between the two layers; the bearing layer material is demoulded; Preparation of thermal insulation layer: Aerogel coating is evenly applied to the outer large surface of the load-bearing layer with a thickness of 1-2mm. The chemical bonding force between the thermal insulation layer and the load-bearing layer and the mechanical bite force formed by the convex ribs jointly ensure the connection between the two layers; Preparation of protective layer: After the thermal insulation layer solidifies, the protective layer is cast with formwork, whereby the chemical bonding force and mechanical bite force between the protective layer and the thermal insulation layer jointly ensure the connection between the two layers; the protective layer material is demolded to obtain the wall panel unit.

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