Rotating Anchor Node Decorative Surface Layer Concrete Prefabricated Component and Its Preparation Method

Abstract

An embodiment of the present application relates to a precast concrete member with a decorative surface layer for a rotating anchoring node and a preparation method thereof, belonging to the technical field of building materials. The main purpose is to reduce the risk of the decorative surface layer of the precast concrete member falling off. The main technical solution adopted is as follows: The precast concrete member with a decorative surface layer for a rotating anchoring node includes: a decorative surface layer; a thermal insulation layer; a concrete structural layer; a rotating anchoring node, which includes: a fixing member and a rotating anchor member, the rotating anchor member is rotatably and slidably connected to the fixing member, the fixing member is fixedly connected to the decorative surface layer, the rotating anchor member passes through the thermal insulation layer and is anchored to the concrete structural layer. Compared with the prior art in which a stone is fixedly connected to a precast concrete structural layer, for the precast concrete member with a decorative surface layer for a rotating anchoring node in this solution, the risk of the decorative surface layer falling off is relatively small.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of building materials, and particularly to a concrete precast member with a decorative surface layer of a rotating anchoring node and a preparation method thereof. Background Art

[0002] Vigorously developing building components integrating thermal insulation, structure and decoration is a basic requirement for the development of building industrialization.

[0003] For the existing sandwich concrete precast members, since the outer leaf wall uses concrete materials with a thickness of 50 - 60 mm, there are main problems such as heavy self-weight, poor decoration, and complex preparation processes, which are not conducive to the social development trend of circular economy and the four aspects of energy conservation, land conservation, water conservation and environmental protection.

[0004] For the precast concrete external thermal insulation and reverse - cast stone panel decoration integrated board, its decorative surface uses stone as the decorative panel, and the decorative panel is fixedly connected to the precast concrete structural layer through connectors. Although the self - weight of the precast concrete member can be reduced, due to the quality hidden dangers such as unforeseeable micro - cracks in natural stone, its overall strength is difficult to guarantee. In the way of fixedly connecting the stone and the precast concrete structural layer, when the natural stone is subjected to external forces, the concentrated stress is relatively large, and there is a relatively large risk of falling off. Summary of the Invention

[0005] In view of this, the embodiments of the present application provide a concrete precast member with a decorative surface layer of a rotating anchoring node and a preparation method thereof, mainly aiming to reduce the falling - off risk of the decorative surface layer of the concrete precast member.

[0006] To achieve the above - mentioned purpose, the embodiments of the present application mainly provide the following technical solutions:

[0007] On the one hand, the embodiments of the present application provide a concrete precast member with a decorative surface layer of a rotating anchoring node, including:

[0008] A decorative surface layer;

[0009] A thermal insulation layer;

[0010] A concrete structural layer, where the concrete structural layer can be an ordinary concrete structural layer or a foamed concrete structural layer, etc.;

[0011] A rotating anchoring node, including: a fixing part and a rotating anchor part, the rotating anchor part is rotatably and slidably connected to the fixing part, the fixing part is fixedly connected to the decorative surface layer, and the rotating anchor part passes through the thermal insulation layer and is anchored in the concrete structural layer.

[0012] The purpose of the embodiments of the present application and the solution to its technical problems can be further realized by adopting the following technical measures.

[0013] Optionally, for the above-mentioned precast concrete member for the decorative surface layer of the rotational anchoring node, the rotational anchor has a radial movement space in the radial direction of the fixing member.

[0014] Optionally, for the above-mentioned precast concrete member for the decorative surface layer of the rotational anchoring node, the fixing member is a back bolt, the rotational anchor is rotatably locked to the back bolt by a nut, a round hole or a long hole is formed in the middle of the rotational anchor, the fixing member passes through the round hole or the long hole, and the diameter of the round hole or the long hole is larger than the diameter of the fixing member.

[0015] Optionally, for the above-mentioned precast concrete member for the decorative surface layer of the rotational anchoring node, the rotational anchor includes a rotating part and an anchoring part made of metal material. The first end of the anchoring part is connected to the rotating part, and the second end of the anchoring part is anchored to the concrete structural layer. The rotating part includes an opposite first surface and a second surface. The first surface faces the decorative surface layer, and the second surface faces away from the decorative surface layer. Wherein, at least one of the first surface and the second surface is an arc surface recessed toward the decorative surface layer side.

[0016] Optionally, for the above-mentioned precast concrete member for the decorative surface layer of the rotational anchoring node, the rotational anchor includes a base body, a spherical nesting, a metal sphere and an anchoring part. The first end of the anchor is connected to the base body, the second end of the anchoring part is anchored to the concrete structural layer, the spherical nesting is embedded in the base body, the metal sphere is rotatably arranged in the spherical nesting, and the round hole or the long hole is formed in the metal sphere.

[0017] Optionally, for the above-mentioned precast concrete member for the decorative surface layer of the rotational anchoring node, the rotational anchoring node includes: a double-layer washer arranged on at least one side of the rotational anchor. Each double-layer washer includes a metal washer and a plastic washer, and the plastic washer is compressed by the metal washer and the rotational anchor into an arc surface structure.

[0018] Optionally, for the above-mentioned precast concrete member for the decorative surface layer of the rotational anchoring node, the decorative surface layer is formed by splicing a plurality of decorative plates, and a waterproof sealant is applied at the seams of the plurality of decorative plates.

[0019] On the other hand, an embodiment of the present application provides a method for preparing a precast concrete member for the decorative surface layer of a rotational anchoring node, including:

[0020] Laying the decorative surface layer at the bottom of the casting mold, and fixedly connecting the fixing member of the rotational anchoring node to the decorative surface layer;

[0021] A thermal insulation layer is laid above the decorative surface layer, so that the rotating anchor of the rotating anchoring node extends out of the thermal insulation layer, wherein the rotating anchor is rotatably and slidably connected with the fixing member;

[0022] Concrete is poured above the thermal insulation layer, so that the rotating anchor is poured into the concrete to form a concrete structural layer.

[0023] The object of the embodiment of the present application and the technical problems to be solved can be further realized by the following technical measures.

[0024] Optionally, in the preparation method of the precast concrete member of the decorative surface layer of the rotating anchoring node, before laying the thermal insulation layer above the decorative surface layer, it further includes:

[0025] Spray a bonding layer on the decorative surface layer.

[0026] Optionally, in the preparation method of the precast concrete member of the decorative surface layer of the rotating anchoring node, before pouring concrete above the thermal insulation layer, it further includes:

[0027] Spray an interface layer on the thermal insulation layer.

[0028] By means of the above technical solutions, the precast concrete member of the decorative surface layer of the rotating anchoring node and its preparation method provided by the technical solutions of the present application have at least the following advantages:

[0029] In the technical solution provided by the embodiment of the present solution, the decorative surface layer is connected with the fixing member of the rotating anchoring node, and the concrete structural layer is anchored and connected with the rotating anchor of the rotating anchoring node. When the decorative surface layer is slightly bent under the action of wind pressure and the like, since the rotating anchor is rotatably and slidably connected with the fixing member, the decorative surface layer can rotate and slide relative to the concrete structural layer, so as to reduce stress. Compared with the technical solution in the prior art in which the stone is fixedly connected with the precast concrete structural layer, the precast concrete member of the decorative surface layer of the rotating anchoring node in the present solution has a smaller risk of falling off of the decorative surface layer.

[0030] The above description is only an overview of the technical solutions of the present application. In order to be able to understand the technical means of the embodiments of the present application more clearly and implement them in accordance with the content of the description, the following takes the preferred embodiments of the present application and combines the accompanying drawings to describe in detail as follows. Description of the Drawings

[0031] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0032] Figure 1 It is a schematic structural diagram of a concrete precast component for the decorative surface layer of a rotating anchoring node provided by an embodiment of the present application;

[0033] Figure 2 It is a schematic cross-sectional structural diagram of a concrete precast component for the decorative surface layer of a rotating anchoring node provided by an embodiment of the present application;

[0034] Figure 3 It is a schematic structural diagram of a rotating anchoring node of a concrete precast component for the decorative surface layer of a rotating anchoring node provided by an embodiment of the present application;

[0035] Figure 4 It is a schematic structural diagram of the first surface of the rotating part of a concrete precast component for the decorative surface layer of a rotating anchoring node provided by an embodiment of the present application;

[0036] Figure 5 It is a schematic structural diagram of the second surface of the rotating part of a concrete precast component for the decorative surface layer of a rotating anchoring node provided by an embodiment of the present application;

[0037] Figure 6 It is a schematic structural diagram of a rotating anchoring node of another concrete precast component for the decorative surface layer of a rotating anchoring node provided by an embodiment of the present application;

[0038] Figure 7 It is a schematic diagram of the internal partial structure of a rotating anchoring node of another concrete precast component for the decorative surface layer of a rotating anchoring node provided by an embodiment of the present application;

[0039] Figure 8 It is a schematic structural diagram of a rotating anchoring node of yet another concrete precast component for the decorative surface layer of a rotating anchoring node provided by an embodiment of the present application;

[0040] Figure 9 It is a schematic layout structural diagram of four rotating anchoring nodes of the decorative panel of the first concrete precast component for the decorative surface layer of a rotating anchoring node provided by an embodiment of the present application;

[0041] Figure 10 It is a schematic layout structural diagram of four rotating anchoring nodes of the decorative panel of the second concrete precast component for the decorative surface layer of a rotating anchoring node provided by an embodiment of the present application;

[0042] Figure 11 It is a schematic layout structural diagram of four rotating anchoring nodes of the decorative panel of the third concrete precast component for the decorative surface layer of a rotating anchoring node provided by an embodiment of the present application;

[0043] Figure 12 It is a schematic diagram of the laying process of the decorative surface layer of yet another concrete precast component for the decorative surface layer of a rotating anchoring node provided by an embodiment of the present application;

[0044] Figure 13 It is a schematic diagram of the laying process of the thermal insulation layer of another concrete precast component with a decorative surface layer of a rotating anchoring node provided by an embodiment of the present application. Detailed implementation manners

[0045] Hereinafter, the exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be completely conveyed to those skilled in the art.

[0046] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should have the ordinary meanings understood by those skilled in the art to which the present application belongs.

[0047] Figures 1 to 5 For an embodiment of the concrete precast component with a decorative surface layer of a rotating anchoring node provided by the present application, please refer to Figures 1 to 5 , a concrete precast component with a decorative surface layer of a rotating anchoring node proposed in an embodiment of the present application includes: a decorative surface layer 10, a thermal insulation layer 20, a concrete structural layer 30, and a rotating anchoring node 40. The rotating anchoring node 40 includes: a fixing member 41 and a rotating anchoring member 42. The rotating anchoring member 42 is rotatably and slidably connected to the fixing member 41. The fixing member 41 is fixedly connected to the decorative surface layer 10. The rotating anchoring member 42 passes through the thermal insulation layer 20 and is anchored to the concrete structural layer 30.

[0048] In the technical solution provided by the embodiment of the present solution, the decorative surface layer 10 is connected to the fixing member 41 of the rotating anchoring node 40, and the concrete structural layer 30 is anchored and connected to the rotating anchoring member 42 of the rotating anchoring node 40. When the decorative surface layer 10 is slightly bent under the action of wind pressure or the like, since the rotating anchoring member 42 is rotatably and slidably connected to the fixing member 41, the decorative surface layer 10 can rotate and slide relative to the concrete structural layer 30, thereby reducing stress. Compared with the prior art in which the stone is fixedly connected to the precast concrete structural layer 30, for the concrete precast component with the decorative surface layer 10 of the rotating anchoring node 40 in the present solution, the risk of the decorative surface layer 10 falling off is relatively small.

[0049] The decorative surface layer 10 is made of a ceramic thick plate or a stone plate, etc., which can play a decorative role.

[0050] Among them, the decorative surface layer 10 and the thermal insulation layer 20 can be bonded through an adhesive layer, and an interface layer can be provided between the thermal insulation layer 20 and the concrete structural layer 30. It is easy to understand that the adhesive layer and the interface layer are optional layers, which are set according to needs and can further strengthen the strength of the overall structure of the rotating anchoring node 40, the decorative surface layer 10 and the precast concrete member.

[0051] The concrete structural layer 30 can adopt a reinforced concrete structure or a foamed concrete structure. Among them, when adopting the foamed concrete structure, it is strengthened by a three-dimensional steel wire mesh structure and assisted by the installation of ordinary steel bars.

[0052] The fixing member 41 and the rotating anchor member 42 of the rotating anchoring node 40 can achieve relative rotation and movement. Among them, the decorative surface layer 10 can be formed by splicing a plurality of decorative panels 11. Each decorative panel 11 is connected to the concrete structural layer 30 through four rotating anchoring nodes 40. The connection method between the decorative panel 11 and the concrete structural layer 30 can be rotary or translational, and specifically, the rotating anchoring nodes 40 with different sliding structures are configured according to needs.

[0053] Specifically, the decorative surface layer 10 is formed by splicing a plurality of decorative boards, and a waterproof sealant is applied at the joints of the plurality of decorative boards. It solves the common quality problems of water seepage and leakage of components.

[0054] In realizing the sliding of the rotating anchoring node 40, the rotating anchor member 42 has a radial movement space in the radial direction of the fixing member 41. The fixing member 41 can be a back bolt. The rotating anchor member 42 is rotatably locked to the back bolt through a nut. A round hole or a long hole 421 is formed in the middle of the rotating anchor member 42. The fixing member 41 passes through the round hole or the long hole 421, and the diameter of the round hole or the long hole 421 is larger than the diameter of the fixing member 41. That is, by selecting the rotating anchoring node 40 corresponding to the rotating anchor member 42 with a round hole or a long hole, a rotary or translational decorative panel 11 can be configured.

[0055] In realizing the rotation of the rotating anchoring node 40, in order to enable the rotating anchoring node 40 to obtain better durability and rotation flexibility, the rotating anchor member 42 can be made of a metal material.

[0056] Specifically, since the rotating anchor 42 is locked to the back bolt by a nut, in order to enable the rotating anchor 42 to achieve good rotational flexibility, in implementation, the rotating anchor 42 includes a rotating part 422 and an anchoring part 423 made of metal material. The first end of the anchoring part 423 is connected to the rotating part 422, and the second end of the anchoring part 423 is anchored to the concrete structural layer 30. The rotating part 422 includes opposite first surface 401 and second surface 402. The first surface 401 faces the decorative surface layer 10, and the second surface 402 faces away from the decorative surface layer 10. Among them, at least one of the first surface 401 and the second surface 402 is an arc surface recessed toward the decorative surface layer 10. Compared with the first surface 401 with a flat surface, the first surface 401 with an arc surface can reduce the contact area during the sliding of the first surface 401. Similarly, compared with the second surface 402 with a flat surface, the second surface 402 with an arc surface can reduce the contact area during the sliding of the second surface 402. Furthermore, it is easy to realize the rotation of the rotating part 422. Among them, the second end of the anchoring part 423 can be in a barb shape to achieve a firm grip on the concrete structural layer 30. Among them, the number of the anchoring parts 423 can be one, two or more.

[0057] In some other embodiments, in order to enable the rotating anchor to achieve good rotational flexibility, in implementation, in combination with Figure 6 and Figure 7 as shown, the rotating anchor includes a base body 424, a spherical nest, a metal sphere 425 and an anchoring part 426. The first end of the anchor is connected to the base body 424, the second end of the anchoring part 426 is anchored to the concrete structural layer, the spherical nest is embedded in the base body 424, the metal sphere 425 is rotatably arranged in the spherical nest, and the round hole or long hole is opened in the metal sphere 425. The back bolt passes through the round hole or long hole opened in the metal sphere 425. Among them, since the aperture of the round hole or long hole is larger than the diameter of the back bolt, the relative sliding of the rotating anchor with respect to the back bolt can be realized, and during the rotation of the back bolt relative to the rotating anchor, it can be realized by the rotation of the metal sphere 425 in the spherical nest.

[0058] In some other embodiments, in order to enable the rotating anchor to achieve good rotational flexibility, in implementation, in combination with Figure 8As shown in the figure, the rotational anchoring node includes: a double-layer washer 43 disposed on at least one side of the rotational anchor, each double-layer washer 43 including a metal washer 431 and a plastic washer 432. The plastic washer 432 is compressed by the metal washer 431 and the rotational anchor, and is recessed into the round hole or long hole, presenting an arc-shaped structure. During assembly, first connect the fixed end of the back bolt to the decorative surface layer, then successively thread the metal washer 431 and the plastic washer 432 of the first group of double-layer washers 43 onto the back bolt, then thread the rotational anchor onto the back bolt, and then successively thread the plastic washer 432 and the metal washer 431 of the second group of double-layer washers 43 onto the back bolt. Finally, by tightening the nut at the threaded end of the back bolt, the plastic washer 432 is compressed to form an arc-shaped structure. Since the arc-shaped structure can reduce the contact area with the rotational anchor, its rotational flexibility can be improved. It is easy to understand that in practice, the double-washer structure provided in this embodiment can be combined with the two embodiments of the rotational anchor in the above embodiment, that is, in the rotational anchors in the above two embodiments, a double-layer washer 43 can be disposed on at least one side of the rotational anchor.

[0059] As Figures 9 - 11 shown, wherein, the decorative surface layer is assembled by a plurality of decorative panels, and each decorative panel can be connected by 4 rotational anchoring nodes to realize the deformation of the decorative surface layer relative to the concrete structural layer. The connection of the 4 rotational anchoring nodes includes: a first rotational anchoring node 40a corresponding to the rotational anchor with a first-diameter round hole, a second rotational anchoring node 40b corresponding to the rotational anchor with a second-diameter round hole, a third rotational anchoring node 40c corresponding to the rotational anchor with a transverse long hole, and a third rotational anchoring node 40c corresponding to the rotational anchor with a longitudinal long hole. The first diameter is smaller than the second diameter. The first rotational anchoring node 40a and the third rotational anchoring node 40c are arranged in the transverse direction of the rotational anchoring node decorative surface layer concrete precast member, the first rotational anchoring node 40a and the fourth rotational anchoring node 40d are arranged in the longitudinal direction of the rotational anchoring node decorative surface layer concrete precast member, the second rotational anchoring node 40b and the third rotational anchoring node 40c are arranged in the longitudinal direction of the rotational anchoring node decorative surface layer concrete precast member, and the second rotational anchoring node 40b and the fourth rotational anchoring node 40d are arranged in the transverse direction of the rotational anchoring node decorative surface layer concrete precast member. As Figure 9 shown, the first rotational anchoring node 40a and the third rotational anchoring node 40c can be disposed at the top of the rotational anchoring node decorative surface layer concrete precast member, that is, the first rotational anchoring node 40a and the third rotational anchoring node 40c are located above the second rotational anchoring node 40b and the fourth rotational anchoring node 40d. After the rotational anchoring node decorative surface layer concrete precast member is installed, the decorative panel is hung on the concrete structural layer through the first rotational anchoring node 40a and the third rotational anchoring node 40c.

[0060] Alternatively, as Figure 10 shown, the first rotational anchoring node 40a and the third rotational anchoring node 40c can be arranged at the bottom of the concrete precast member of the decorative surface layer of the rotational anchoring node, that is, the first rotational anchoring node 40a and the third rotational anchoring node 40c are located below the second rotational anchoring node 40b and the fourth rotational anchoring node 40d. After the concrete precast member of the decorative surface layer of the rotational anchoring node is installed, the decorative panel is supported on the concrete structural layer through the first rotational anchoring node 40a and the third rotational anchoring node 40c.

[0061] In this way, horizontally, the third rotational anchoring node 40c and the second rotational anchoring node 40b can release the horizontal expansion and contraction of the decorative panel caused by reasons such as temperature, and vertically, the fourth rotational anchoring node 40d and the second rotational anchoring node 40b can release the vertical expansion and contraction of the decorative panel caused by reasons such as temperature.

[0062] When there is a negative wind pressure acting, all four rotational anchoring nodes can bear the outward wind pressure, so that the decorative panel can deform along with the concrete structural layer slab, can also adapt to the shrinkage deformation of the decorative panel caused by temperature influence, and at the same time can resist the action of the negative wind pressure so that the panel will not fall off.

[0063] In addition, as combined with Figure 11 shown, the third rotational anchoring node 40c can also be replaced by the fifth rotational anchoring node 40e corresponding to the rotational anchor of the third diameter circular hole. The third diameter is greater than the first diameter. It should be noted that the third diameter can be equal to the second diameter or not equal to the second diameter.

[0064] In this solution, the rotational anchors of circular holes, the rotational anchors of horizontal long holes, and the rotational anchors of vertical long holes are used in combination to achieve the effect that the decorative panel can slide horizontally and vertically.

[0065] Based on the same inventive technical concept, as combined with Figure 12 and Figure 13 shown, a preparation method of a concrete precast member of the decorative surface layer of a rotational anchoring node proposed in an embodiment of the present application includes:

[0066] Laying the decorative surface layer 10 at the bottom of the casting mold, and fixedly connecting the fixing member of the rotational anchoring node 40 with the decorative surface layer 10;

[0067] Laying the heat preservation layer 20 above the decorative surface layer 10, so that the rotational anchors of the rotational anchoring node 40 extend out from the heat preservation layer 20, wherein the rotational anchors are rotatably and slidably connected with the fixing members;

[0068] Concrete is poured above the heat preservation layer 20 so that the rotating anchor is poured into the concrete to form a concrete structural layer.

[0069] In the technical solution provided by the embodiment of this solution, for the concrete precast member of the decorative surface layer 10 of the rotating anchoring node 40 prepared by the reverse casting process, when the decorative surface layer 10 is slightly bent under the action of wind pressure and the like, since the rotating anchor and the fixing member are rotatably and slidably connected, the decorative surface layer 10 can rotate and slide relative to the concrete structural layer, so that stress can be reduced. Compared with the process of hanging the decorative surface layer by using an external hanging node in the prior art, this solution does not require the construction site to hang the decorative surface layer externally and can be directly prepared by the reverse casting process.

[0070] In addition, before laying the heat preservation layer 20 above the decorative surface layer 10, it may also include: spraying an adhesive layer on the decorative surface layer 10. Before pouring concrete above the heat preservation layer 20, it may also include: spraying an interface layer on the heat preservation layer 20. Thus, for the concrete precast member of the decorative surface layer 10 of the rotating anchoring node 40 prepared, an adhesive layer is used for bonding between the decorative surface layer 10 and the heat preservation layer 20, and an interface layer is provided between the heat preservation layer 20 and the concrete structural layer.

[0071] The decorative surface layer 10 can be spliced by a plurality of decorative panels 11. Four rotating anchoring nodes 40 are provided on each decorative panel 11 for connecting the concrete structural layer 30. During the process of laying the decorative surface layer 10 at the bottom of the casting mold, the rotating anchoring nodes 40 can be first provided on the decorative panel 11, and then the decorative panel 11 is laid at the bottom of the casting mold, or the decorative panel 11 is first laid at the bottom of the casting mold, and then the rotating anchoring nodes 40 are installed.

[0072] In addition, during the process of laying the decorative surface layer 10 at the bottom of the casting mold, a waterproof sealant can be applied to the joints of multiple decorative panels simultaneously. Of course, the waterproof sealant can also be applied to the joints of multiple decorative panels after the entire concrete precast member of the rotating anchoring node decorative surface layer is poured.

[0073] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0074] It can be understood that the relevant features in the above devices can be referred to each other. In addition, the "first", "second", etc. in the above embodiments are used to distinguish each embodiment and do not represent the advantages and disadvantages of each embodiment.

[0075] In the specification provided herein, a number of specific details are set forth. However, it will be understood that embodiments of the present application may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail so as not to obscure the understanding of this description.

[0076] Similarly, it should be understood that, in order to streamline this disclosure and assist in understanding one or more of the various aspects of the application, in the foregoing description of the exemplary embodiments of the application, the various features of the application are sometimes grouped together in a single embodiment, figure, or description thereof. However, the disclosed apparatus should not be construed as reflecting an intention that the claimed application requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, the aspects of the application lie in less than all of the features of the single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of the present application.

[0077] Those skilled in the art will appreciate that the components in the embodiments of the apparatus can be adaptively changed and disposed in one or more apparatuses different from those of the embodiments. The components in the embodiments can be combined into one component, and in addition, they can be divided into multiple sub-components. Except that at least some of such features are mutually exclusive, any combination can be used to combine all the features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all the components of any apparatus so disclosed. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) can be replaced by an alternative feature that provides the same, equivalent, or similar purpose.

[0078] In addition, those skilled in the art will be able to understand that although some of the embodiments described herein include certain features included in other embodiments but not others, the combination of the features of different embodiments means that it is within the scope of the present application and forms different embodiments. For example, in the following claims, any one of the claimed embodiments can be used in any combination. The various component embodiments of the present application can be implemented in hardware, or in combinations thereof.

[0079] It should be noted that the above embodiments are illustrative of the present application rather than restrictive thereof, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or components not listed in the claim. The word "a" or "an" preceding an element or component does not exclude the presence of a plurality of such elements or components. The present application may be implemented by means of a device including several different elements. In a claim listing several elements, several of these elements may be embodied by the same item of element. The use of the words first, second, and third, etc. does not denote any order. These words may be interpreted as names.

[0080] The above are only the preferred embodiments of the present application, and do not impose any formal restrictions on the present application. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application still fall within the scope of the technical solutions of the present application.

Claims

1. A precast concrete member for the decorative surface layer of a rotating anchoring node, characterized in that, it includes: a decorative surface layer; a thermal insulation layer; a concrete structural layer; a rotating anchoring node, including: a fixing member and a rotating anchoring member, the rotating anchoring member is rotatably and slidably connected to the fixing member, the fixing member is fixedly connected to the decorative surface layer, the rotating anchoring member passes through the thermal insulation layer and is anchored to the concrete structural layer; the rotating anchoring member includes a rotating part and an anchoring part made of metal material, the first end of the anchoring part is connected to the rotating part, the second end of the anchoring part is anchored to the concrete structural layer, and the second end of the anchoring part is in the shape of an inverted hook for firmly grasping the concrete structural layer; the rotating part includes an opposite first surface and a second surface, the first surface faces the decorative surface layer, the second surface faces away from the decorative surface layer, wherein at least one of the first surface and the second surface is an arc surface recessed toward the decorative surface layer side; the rotating anchoring member has a radial movement space in the radial direction of the fixing member.

2. The precast concrete member for the decorative surface layer of a rotating anchoring node according to claim 1, characterized in that, the fixing member is a back bolt, the rotating anchoring member is rotatably locked to the back bolt by a nut, a round hole or a long hole is formed in the middle of the rotating anchoring member, the fixing member passes through the round hole or the long hole, and the diameter of the round hole or the long hole is larger than the diameter of the fixing member.

3. The precast concrete member for the decorative surface layer of a rotating anchoring node according to claim 2, characterized in that, the rotating anchoring member includes a base body, a spherical nesting, a metal sphere and an anchoring part, the first end of the anchoring member is connected to the base body, the second end of the anchoring part is anchored to the concrete structural layer, the spherical nesting is embedded in the base body, the metal sphere is rotatably arranged in the spherical nesting, and the round hole or the long hole is formed in the metal sphere.

4. The precast concrete member for the decorative surface layer of a rotating anchoring node according to claim 2, characterized in that, the rotating anchoring node includes: a double-layer washer arranged on at least one side of the rotating anchoring member, each double-layer washer includes a metal washer and a plastic washer, and the plastic washer is compressed by the metal washer and the rotating anchoring member into an arc surface structure.

5. The precast concrete member for the decorative surface layer of a rotating anchoring node according to any one of claims 1-4, characterized in that, the decorative surface layer is formed by splicing a plurality of decorative plates, and a waterproof sealant is applied at the seams of the plurality of decorative plates.

6. A preparation method of a precast concrete member for the decorative surface layer of a rotating anchoring node, characterized in that, it includes: obtaining the precast concrete member for the decorative surface layer of a rotating anchoring node according to any one of claims 1-5; laying the decorative surface layer at the bottom of the casting mold, and fixedly connecting the fixing member of the rotating anchoring node to the decorative surface layer; laying the thermal insulation layer above the decorative surface layer, so that the rotating anchoring member of the rotating anchoring node extends out of the thermal insulation layer, wherein the rotating anchoring member is rotatably and slidably connected to the fixing member; Pour concrete above the thermal insulation layer so that the rotating anchor is poured into the concrete to form a concrete structural layer.

7. The preparation method of the precast concrete member with a decorative surface layer of the rotating anchoring node according to claim 6, characterized in that, before laying the thermal insulation layer above the decorative surface layer, it further includes: spraying an adhesive layer on the decorative surface layer.

8. The preparation method of the precast concrete member with a decorative surface layer of the rotating anchoring node according to claim 6, characterized in that, before pouring concrete above the thermal insulation layer, it further includes: spraying an interface layer on the thermal insulation layer.

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