Prefabricated formwork-removal-free wallboard with composite insulation board

Abstract

The utility model discloses a prefabricated mould-removal-free wallboard with a composite insulation board, which belongs to the technical field of a mould-removal-free wallboard, and comprises a first template, an insulation foam, an insulation nail, a steel bar net rack and a second template, the insulation nail is mounted in the insulation foam, the first template is mounted on one side of the insulation foam through one end of the insulation nail, and the second template is mounted on the other side of the insulation foam through the other end of the insulation nail. The second formwork is fixedly connected with the other ends of the heat preservation nails on the other side of the steel bar net rack through self-tapping screws on one side of the steel bar net rack. According to the prefabricated formwork-removal-free wallboard, the prefabricated formwork-removal-free wallboard can be machined off site, pouring is conducted after site binding, the prefabricated formwork-removal-free wallboard is gradually heightened, the construction efficiency is high, the prefabricated formwork-removal-free wallboard further has a heat preservation function, and later-period heat preservation layer construction is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wall panel technology that does not require dismantling, and in particular to a prefabricated wall panel that does not require dismantling and has a composite insulation board. Background Technology

[0002] Non-load-bearing walls refer to walls constructed later that do not bear the load of the upper floors. They only serve to divide space and are considered non-structural components of a building, having minimal impact on structural safety. Currently, the construction of non-load-bearing walls typically involves erecting formwork on both sides of the wall, supporting the formwork, pouring concrete between the two formwork sections, and then removing the formwork after the concrete has hardened. This construction method is time-consuming and labor-intensive, and further complicated by the need for insulation layer construction on the exterior wall after completion.

[0003] Existing technologies already include formwork-free wall panels. For example, Chinese patent (CN114150795A) discloses a lightweight, cast-in-place, high-strength formwork wall system with no formwork removal and its construction method. In this patent, it is necessary to first install the keel, then install the formwork on the keel, and finally pour the concrete. This patent still requires on-site formwork erection before pouring, which is inefficient and lacks an insulation layer, requiring the exterior wall to be insulated after construction. Utility Model Content

[0004] In view of this, the present invention provides a prefabricated formwork-free wall panel with a composite insulation board, which can be prefabricated formwork-free wall panel processed at a non-construction site, and then installed and poured on the construction site and gradually increased in height. The prefabricated formwork-free wall panel has a thermal insulation function, eliminating the need for thermal insulation layer construction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A prefabricated, formwork-free wall panel with a composite insulation board includes a first template, insulation foam, insulation nails, a steel mesh frame, and a second template. The insulation nails are installed in the insulation foam. The first template is installed on one side of the insulation foam via one end of the insulation nail. The second template is fastened to the other end of the insulation nail on the other side of the steel mesh frame via self-tapping screws.

[0007] Furthermore, the insulation nail includes a first disc, a straight rod, and a second disc. The first disc is fixedly installed at one end of the straight rod. The end of the disc away from the straight rod is provided with a first threaded hole. The other end of the straight rod is provided with a second threaded hole and an external threaded portion. The second disc is threadedly connected to the external threaded portion.

[0008] Furthermore, the first template includes a finishing layer, a mortar layer, a mesh fabric, and a fireproof layer, wherein the finishing layer, the mortar layer, the mesh fabric, and the fireproof layer are sequentially bonded together, and the fireproof layer is bonded to the thermal insulation foam.

[0009] Furthermore, the insulating foam has a hollow structure.

[0010] Furthermore, the insulating foam is provided with tongue and groove joints around its perimeter.

[0011] Furthermore, the connecting body includes a connecting plate and a connecting rod, with the connecting plate fixedly installed at both ends of the connecting rod.

[0012] The beneficial effects of this utility model are as follows:

[0013] This utility model involves installing insulation nails within insulation foam, then using self-tapping screws and bolts to secure the nails to both ends. The first template and insulation foam are installed on one side of the reinforcing mesh frame, and the second template is installed on the other side. The top and bottom of the reinforcing mesh frame are vertically tied to increase its height. A first disc and a straight rod are integrally formed, with the rod passing through the insulation foam. The disc has a first threaded hole, which is secured with self-tapping screws. This allows the first template to be installed on one side of the insulation foam. The disc connects to an external threaded part on the other side of the insulation foam. Long self-tapping screws or bolts are used to connect to the second threaded hole on the other side of the reinforcing mesh frame, installing the second template and reinforcing mesh frame on the other side of the insulation foam. The insulation foam has a hollow structure, saving materials and improving insulation performance by utilizing air insulation properties. Tongues and grooves are provided around the insulation foam, facilitating splicing between composite insulation boards, improving connection strength, and preventing water ingress. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of a prefabricated, formwork-free wall panel with composite insulation board.

[0016] Figure 2 This is a schematic diagram of the structure of the thermal insulation nail.

[0017] Figure 3 This is a structural diagram of a prefabricated, formwork-free wall panel.

[0018] Figure 4This is a construction diagram of a prefabricated, formwork-free wall panel with composite insulation board.

[0019] In the figure:

[0020] 10-First formwork, 11-Final layer, 12-Mortar layer, 13-Mesh cloth, 14-Fireproof layer, 20-Insulation foam, 21-Tongue and groove, 30-Insulation nail, 31-First disc, 311-First threaded hole, 32-Straight rod, 321-Second threaded hole, 322-External threaded part, 33-Second disc, 40-Reinforcing steel mesh, 50-First self-tapping screw, 60-Second self-tapping screw, 70-Connecting bar, 80-Precast formwork-free floor slab, 90-Second formwork, 100-Foundation, 110-Concrete, 120-Precast formwork-free wall panel, 130-Internal precast formwork-free wall panel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] See attached document Figure 1-4 As shown, this utility model provides a prefabricated, formwork-free wall panel 120 with a composite insulation board, comprising: a first template 10, insulation foam 20, insulation nails 30, a steel mesh frame 40, and a second template 90. The insulation nails 30 are installed in the insulation foam 20 and are fastened to one end by first self-tapping screws 50, thus installing the first template on one side of the insulation foam 20. The second template 90 is fastened to the other end of the insulation nails 30 in the steel mesh frame 40 by second self-tapping screws 60. The insulation nails 30 are installed in the insulation foam 20, and then fastened to both ends by self-tapping screws and bolts, thus installing the first template 10 and insulation foam 20 on one side of the steel mesh frame 40, and the second template 90 on the other side of the steel mesh frame 40. The top and bottom ends of the steel mesh frame 40 are vertically tied to increase its height. The precast, formwork-free wall panel 130 consists of a steel mesh frame 40 with second formwork 90 on both sides, without the first formwork 10 and thermal insulation foam 20, and is used for the installation of interior walls. The precast, formwork-free floor slab 80 has a second formwork 90 installed only at the bottom of the steel mesh frame and is used for the top floor installation of each floor.

[0024] See attached document Figure 2As shown, the insulation nail 30 includes a first disc 31, a straight rod 32, and a second disc 33. The first disc 31 is fixedly installed at one end of the straight rod 32. The end of the disc away from the straight rod 32 is provided with a first threaded hole 311. The other end of the straight rod 32 is provided with a second threaded hole 321 and an external threaded part 322. The second disc 33 is threadedly connected to the external threaded part 322.

[0025] The first disc 31 and the straight rod 32 are integrally formed. The straight rod 32 passes through the thermal insulation foam 20. One end of the straight rod 32 is provided with a second threaded hole 321. The first self-tapping screw 50 is used to fasten it in the second threaded hole 321. The first template 10 can be installed on one side of the thermal insulation foam 20. The second disc 33 is connected to the external threaded part 322 on the other side of the thermal insulation foam 20. On the other side of the steel mesh frame 40, a long second self-tapping screw 60 or bolt is used to connect to the first threaded hole 311. The second template 90 and the steel mesh frame 40 are installed on the other side of the thermal insulation foam 20.

[0026] The first template 10 includes a finishing layer 11, a mortar layer 12, a mesh fabric 13, and a fireproof layer 14. The finishing layer 11, mortar layer 12, mesh fabric 13, and fireproof layer 14 are sequentially bonded together, with the fireproof layer 14 bonded to the thermal insulation foam 20. The thermal insulation foam 20 has a hollow structure, which saves material and utilizes the thermal insulation properties of air to improve insulation performance. Tongue and groove joints 21 are provided on the thermal insulation foam 20; other embodiments may also include tongue and groove joints 21 on the thermal insulation foam 20. During installation of the composite insulation board, adjacent composite insulation boards are joined and overlapped using the tongue and groove joints 21. Adhesive strips are pasted or filled between adjacent tongue and groove joints 21 during installation to prevent rainwater leakage and grout leakage from the concrete 110.

[0027] Example 2

[0028] A construction method for a precast, formwork-free wall panel with composite insulation board includes the following steps:

[0029] S1. Embed connecting bars 70 on the foundation and tie the steel mesh 40 in the precast formwork-free wall panel 120 to the embedded connecting bars 70;

[0030] S2. Arrange multiple inner prefabricated formwork-free wall panels 130 between two prefabricated formwork-free wall panels 120, and install prefabricated formwork-free floor slabs 80 on top of the prefabricated formwork-free wall panels 120 and the inner prefabricated formwork-free wall panels 130.

[0031] S3. Pour concrete 110 into the precast formwork-free wall panel 120 and the precast formwork-free floor slab 80;

[0032] S4. Tie a new prefabricated formwork-free wall panel 120 to the top of the prefabricated formwork-free wall panel 120;

[0033] S5. Repeat S3 and S4, gradually increasing the height until the designed floor is reached.

[0034] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A prefabricated, formwork-free wall panel with a composite insulation board, characterized in that, include: The structure comprises a first template, thermal insulation foam, thermal insulation nails, a steel mesh frame, and a second template. The thermal insulation nails are installed in the thermal insulation foam. The first template is installed on one side of the thermal insulation foam via one end of the thermal insulation nail. The second template is fastened to the other end of the thermal insulation nail on the other side of the steel mesh frame via self-tapping screws.

2. A prefabricated, formwork-free wall panel with composite insulation board according to claim 1, characterized in that, The insulation nail includes a first disc, a straight rod, and a second disc. The first disc is fixedly installed at one end of the straight rod. The end of the disc away from the straight rod is provided with a first threaded hole. The other end of the straight rod is provided with a second threaded hole and an external threaded part. The second disc is threadedly connected to the external threaded part.

3. A prefabricated, formwork-free wall panel with composite insulation board according to claim 1, characterized in that, The first template includes a finishing layer, a mortar layer, a mesh fabric, and a fireproof layer. The finishing layer, the mortar layer, the mesh fabric, and the fireproof layer are sequentially bonded together, and the fireproof layer is bonded to the thermal insulation foam.

4. A prefabricated, formwork-free wall panel with a composite insulation board according to claim 3, characterized in that, The insulating foam has a hollow structure.

5. A prefabricated, formwork-free wall panel with a composite insulation board according to claim 3, characterized in that, The insulating foam is provided with tongue and groove joints around its perimeter.

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