Rear connecting structure for fixing door and window used in fabricated wallboard

Abstract

The utility model discloses a rear connecting structure for fixing doors and windows in an assembly type wallboard, which comprises a heat insulation board and concrete wallboards on the two sides of the heat insulation board, a connecting piece is arranged in the heat insulation board, bosses are arranged on the left side and the right side of the connecting piece, and the bottoms of the two bosses are tightly attached to the upper end faces of the concrete wallboards. A trapezoidal groove is formed in the bottom of the connecting piece, two wedge-shaped plates are arranged on the two sides of the trapezoidal groove, and the two wedge-shaped plates are inserted into the heat preservation plate. The connecting piece is used for fixing doors and windows on an outer wall, and the problems that when a wallboard middle layer is made of an extruded polystyrene board heat preservation material, the strength and compactness requirements for embedding screws into a base material during door and window installation cannot be met, and the door and window installation firmness and later use safety are affected can be well solved. By using the connecting piece, the effect of firm installation is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of installation of doors and windows of assembled exterior wall panels, and in particular relates to a rear connection structure for fixing doors and windows used in assembled wall panels. Background Art

[0002] In terms of energy conservation in prefabricated buildings, the exterior wall panels adopt the traditional exterior wall internal insulation layer structure, and there is also an innovative "hamburger-style" wall panel structure with an insulation board in the middle of the concrete wall panel. The "hamburger-style" prefabricated wall panel structure plays a good role in promoting the wall panel insulation and interior decoration, preventing damage to the insulation layer during interior decoration construction, which affects the insulation effect of the exterior wall panel. However, in the "hamburger-style" prefabricated wall panels, since the middle layer of the wall panel uses extruded polystyrene board insulation material, which has a low density and light weight, it cannot meet the strength and density of the screws used in the installation of doors and windows. The strength and density of the base material are embedded, which affects the firmness of the door and window installation and the safety of later use. The utility model technology is to solve this problem. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a rear connection structure for fixing doors and windows used in a "hamburger-type" assembled wall panel structure.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is a rear connection structure for fixing doors and windows used in assembled wall panels, including an insulation board and concrete wall panels on both sides of the insulation board, a connecting piece is installed in the insulation board, bosses are arranged on the left and right sides of the connecting piece, the bottoms of the two bosses are tightly attached to the upper end surface of the concrete wall panel, a trapezoidal groove is provided at the bottom of the connecting piece, two wedge-shaped plates are arranged on both sides of the trapezoidal groove, and the two wedge-shaped plates are inserted in the insulation board.

[0005] Preferably, the connecting piece is made of polyurethane material.

[0006] Preferably, the insulation board is an extruded polystyrene insulation board.

[0007] Preferably, the concrete wall panels are prefabricated concrete wall panels.

[0008] The rear connection structure for fixing doors and windows used in the prefabricated wall panel has an overall "U" cross-sectional structure. When in use, it is embedded into the extruded polystyrene insulation board exposed on the inner side of the door and window openings of the prefabricated wall at a certain interval. While meeting the strength, compression resistance and shear resistance, the doors and windows on the exterior wall are fixed by using this connector to achieve high quality, high efficiency, and firm installation.

[0009] Preferably, the rear connection structure for fixing doors and windows used in the assembled wall panel also includes doors and windows, which are fixed to the connecting parts by screws during installation.

[0010] Compared with the prior art, the beneficial effects produced by the utility model are as follows: the connecting piece is made of polyurethane material, which has hard material strength and light weight, and has excellent high temperature resistance, corrosion resistance, radiation resistance, flame retardancy, balanced physical and mechanical properties and excellent dimensional stability. By using the connecting piece to fix the doors and windows on the exterior wall, it can well solve the problem that when the middle layer of the wall panel adopts extruded polystyrene board insulation material, the strength and density requirements of the screws used in the installation of doors and windows cannot be met, which affects the firmness of the installation of doors and windows and the safety of later use. The use of the connecting piece can achieve the effect of firm installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front elevation view of the utility model;

[0012] Figure 2 It is a side elevation view of the utility model;

[0013] Figure 3 It is a front elevation view of the utility model when installed;

[0014] Figure 4 This is the front elevation drawing of the doors, windows and connecting parts installation.

[0015] In the figure: 1. Connector; 2. Boss; 3. Concrete wall panel; 4. Insulation board; 5. Aluminum alloy window frame; 6. Weather-resistant sealant; 7. Stainless steel self-rotating wire; 8. Trapezoidal groove; 9. Wedge plate. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Example 1

[0018] like Figure 1-4 As shown, a rear connection structure for fixing doors and windows used in an assembled wall panel includes an insulation board 4 and concrete wall panels 3 on both sides of the insulation board. A connector 1 is installed in the insulation board 4. Bosses 2 are provided on the left and right sides of the connector 1. The bottoms of the two bosses 2 are tightly attached to the upper end surfaces of the concrete wall panels 3. A trapezoidal groove 8 is provided at the bottom of the connector 1. Two wedge plates 9 are provided on both sides of the trapezoidal groove 8. The two wedge plates 9 are inserted into the insulation board 4.

[0019] The connecting piece 1 is made of polyurethane material, the insulation board 4 is an extruded polystyrene insulation board, and the concrete wall panel 3 is an assembled concrete wall panel.

[0020] It also includes an aluminum alloy window frame 5, which is fixed to the connecting member 1 by screws (stainless steel self-rotating wires 7) during installation.

[0021] This embodiment is easy to construct: the connecting piece can be customized individually or cut and installed on site, and can be used up and down, left and right inside the door and window openings, and can also be installed according to the position of the installation holes on the doors and windows.

[0022] During installation, it is necessary to first determine the installation position, and then use a wooden hammer to knock the top of the connector 1 so that the connector 1 is vertically embedded in the insulation board 4 until the bosses 2 at both ends of the top of the connector 1 are close to the concrete base surface of the concrete wall panel.

[0023] The installation direction of the connector should be correct to ensure that the outer sides of the two wedge plates 9 of the connector are close to the inner wall of the concrete. The installation should be firm, flat and beautiful to avoid the risks of cracking, deformation and falling off.

[0024] After the installation of the connecting parts, they should be checked. The connecting parts should be installed firmly and not be easily pulled out. There should be no cracking, twisting, or incomplete installation. Otherwise, they should be replaced.

[0025] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The above detailed description of the components of the utility model is provided through specific implementation methods and embodiments, but these do not constitute limitations of the utility model. Without departing from the principle of the utility model, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the utility model.

Claims

1. A rear connection structure for fixing doors and windows used in assembled wall panels, comprising an insulation board and concrete wall panels on both sides of the insulation board, characterized in that: A connector is installed in the insulation board, and bosses are arranged on the left and right sides of the connector. The bottoms of the two bosses are close to the upper end surface of the concrete wall board. A trapezoidal groove is opened at the bottom of the connector, and two wedge plates are arranged on both sides of the trapezoidal groove. The two wedge plates are inserted in the insulation board.

2. The rear connection structure for fixing doors and windows used in the assembled wall panel according to claim 1, characterized in that: The connector is made of polyurethane.

3. The rear connection structure for fixing doors and windows used in the assembled wall panel according to claim 1, characterized in that: The thermal insulation board is an extruded polystyrene thermal insulation board.

4. The rear connection structure for fixing doors and windows used in the assembled wall panel according to claim 1, characterized in that: The concrete wall panels are assembled concrete wall panels.

5. The rear connection structure for fixing doors and windows used in the assembled wall panel according to claim 1, characterized in that: It also includes doors and windows, which are fixed to the connecting parts by screws during installation.

Images