Corner combining piece for doors and windows

Abstract

The corner combining piece comprises a door and window frame and two right-angle codes, the outer side walls of the right-angle codes are connected with the inner side walls of the door and window frame in a sliding mode, and connecting mechanisms are arranged on the right-angle codes. The connecting mechanism comprises limiting plates fixedly installed at the two ends of one right-angle code, the outer side walls of the limiting plates are slidably connected with the inner side wall of the door and window frame, a plurality of triangular limiting grooves are formed in the outer side walls of the limiting plates, and two limiting plates are fixedly installed at the two ends of the other right-angle code. The outer side wall of the limiting plate is slidably connected with the inner side wall of the door and window frame. Under the interaction of the door and window frame, the right-angle code and the connecting mechanism, in the connecting mechanism, the limiting plate is ingeniously matched with the limiting plate, the door and window frame is tightly and stably connected through the wedging design of the triangular limiting groove and the triangular strip, the door and window frame is effectively prevented from loosening and shifting, high-strength connection is achieved, and the door and window frame is not prone to falling off. And the overall stability of the door and window is greatly enhanced.

Description

Technical Field

[0001] This utility model relates to the field of building door and window manufacturing and installation technology, and in particular to a corner bracket for doors and windows. Background Technology

[0002] In the field of building doors and windows, corner brackets are key components for connecting door and window frames. Door and window frames are composed of multiple profiles spliced ​​together, and corner brackets, through specific connection methods, tightly bind these profiles together, ensuring the overall structural stability of the doors and windows. They not only determine the sealing and sound insulation performance of doors and windows, but also affect their appearance, flatness, and lifespan, playing a crucial role in the overall quality of doors and windows.

[0003] Currently, traditional corner fittings typically use simple plug-in or riveting methods. During long-term use, when subjected to external forces such as temperature changes and wind pressure, the connection points are prone to loosening and displacement. Moreover, these connection methods involve cumbersome installation steps and require high technical skills from installers, which is not conducive to large-scale door and window production and installation. Therefore, we have proposed a corner fitting for doors and windows to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings in the above-mentioned background technology and to propose a corner fitting for doors and windows.

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

[0006] A corner bracket for doors and windows includes a door and window frame and two right-angle brackets, wherein the outer wall of the right-angle brackets is slidably connected to the inner wall of the door and window frame, and a connecting mechanism is provided on the right-angle brackets.

[0007] The connecting mechanism includes limiting plates fixedly installed at both ends of one of the right-angle brackets. The outer wall of the limiting plate is slidably connected to the inner wall of the door / window frame. Multiple triangular limiting grooves are provided on the outer wall of the limiting plate. Two limiting plates are fixedly installed at both ends of the other right-angle bracket. The outer wall of the limiting plate is slidably connected to the inner wall of the door / window frame. Multiple triangular strips are fixedly installed on the outer wall of the limiting plate. The triangular strips fit into the triangular limiting grooves.

[0008] Preferably, the material of the triangular strip is thermoplastic polyurethane.

[0009] Preferably, the two limiting plates are symmetrically arranged on the ends of the right-angle code.

[0010] Preferably, the distance between two adjacent triangular limiting grooves is the same, the distance between two adjacent triangular strips is the same, and the distance between two adjacent triangular limiting grooves and the distance between two adjacent triangular strips are the same.

[0011] Preferably, the total length of the limiting plate, the restricting plate, and the two right-angle brackets is greater than the length of the door and window frame.

[0012] Preferably, the limiting plate, the restricting plate, and the right-angle code are all detachably connected by fixing bolts.

[0013] The beneficial effects of this utility model are as follows:

[0014] Through the interaction of the door and window frames, right-angle brackets, and connecting mechanisms, the limiting plate and the restricting plate in the connecting mechanism work together ingeniously. The fitting design of the triangular limiting groove and the triangular strip makes the door and window frames tightly and firmly connected, effectively preventing the door and window frames from loosening or shifting, achieving a high-strength connection and greatly enhancing the overall stability of the doors and windows. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a corner bracket for doors and windows proposed in this utility model;

[0016] Figure 2 This is a top view of the limiting plate and the restricting plate in a corner assembly for doors and windows proposed in this utility model.

[0017] In the diagram: 1. Door and window frame; 2. Right-angle bracket; 3. Limiting plate; 4. Triangular limiting groove; 5. Limiting plate; 6. Triangular strip; 7. Fixing bolt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1 A corner bracket for doors and windows includes a door / window frame 1 and two right-angle brackets 2, wherein the outer wall of the right-angle brackets 2 and the inner wall of the door / window frame 1 are slidably connected.

[0020] To further explain, the sliding connection facilitates assembly, and the right-angle bracket 2 is made of aluminum alloy to ensure the support strength of the door and window frame 1 after connection.

[0021] like Figure 1 and Figure 2 As shown, a connecting mechanism is provided on the right-angle code 2; the connecting mechanism includes limiting plates 3 that are fixedly installed at both ends of one of the right-angle codes 2, the outer wall of the limiting plate 3 is slidably connected to the inner wall of the door and window frame 1, and multiple triangular limiting grooves 4 are provided on the outer wall of the limiting plate 3. Two limiting plates 5 are fixedly installed at both ends of the other right-angle code 2, the outer wall of the limiting plate 5 is slidably connected to the inner wall of the door and window frame 1, and multiple triangular strips 6 are fixedly installed on the outer wall of the limiting plate 5, the triangular strips 6 and the triangular limiting grooves 4 are matched.

[0022] To further explain, the triangular limiting groove 4 on the limiting plate 3 in the connecting mechanism matches the triangular strip 6 on the limiting plate 5, which enables the two right-angled brackets 2 to be firmly connected, thereby tightly combining the door and window frame 1 together, enhancing the stability and firmness of the overall door and window structure, and preventing the door and window frame 1 from becoming loose or shifting during use.

[0023] like Figure 2 As shown, the material of triangular strip 6 is thermoplastic polyurethane.

[0024] To further explain, this material has good toughness and low brittleness at room temperature, which can better adapt to various external impacts that may be encountered during the use of doors and windows, and is not easy to break or be damaged. When heated, its hardness decreases, which makes it easier to fine-tune the fit between the triangular strip 6 and the triangular limiting groove 4 during installation, thereby improving the convenience and accuracy of installation.

[0025] like Figure 1 As shown, the two limiting plates 5 are symmetrically arranged on the ends of the right-angle code 2.

[0026] To further explain, this allows the connection between the right-angle bracket 2 and the door / window frame 1 to be subjected to more even force, avoiding problems such as loosening of the connection or deformation of the door / window due to uneven force, and further improving the stability and service life of the door / window.

[0027] like Figure 2 As shown, the distance between two adjacent triangular limiting grooves 4 is the same, the distance between two adjacent triangular strips 6 is the same, and the distance between two adjacent triangular limiting grooves 4 and the distance between two adjacent triangular strips 6 are the same.

[0028] To further explain, this ensures that the triangular strip 6 is accurately embedded in the triangular limiting groove 4, guaranteeing the precision and stability of the connection, and making the corners of the doors and windows more regular and secure.

[0029] like Figure 1 As shown, the total length of the limiting plate 3, the restricting plate 5, and the two right-angle brackets 2 is greater than the length of the door and window frame 1.

[0030] To further explain, when assembling doors and windows, it can be ensured that the right-angle bracket 2 and the door / window frame 1 have sufficient contact area and connection length, thereby improving the strength and stability of the connection and enhancing the overall resistance to deformation of the doors and windows.

[0031] like Figure 2 As shown, the limiting plate 3, the limiting plate 5, and the right-angle code 2 are all detachably connected by fixing bolts 7.

[0032] To further explain, this design facilitates the adjustment, replacement, or disassembly of corner components during the production, installation, or maintenance of doors and windows, reducing maintenance costs and difficulty, and improving production and maintenance efficiency.

[0033] The functional principle of this utility model can be explained through the following operation methods:

[0034] Insert the first right-angle bracket 2: Align one of the right-angle brackets 2 with one end of the door / window frame 1, and slowly slide the outer wall of the right-angle bracket 2 along the inner wall of the door / window frame 1. During the sliding process, be careful to keep the right-angle bracket 2 stable and avoid tilting or jamming, and ensure that the right-angle bracket 2 can be smoothly inserted into the appropriate position. At this time, the limiting plates 3 at both ends of the right-angle bracket 2 will also enter the inner side of the door / window frame 1 along with the right-angle bracket 2. The limiting plates 3 also slide and cooperate with the inner wall of the door / window frame 1 until the right-angle bracket 2 and the limiting plates 3 reach the predetermined position.

[0035] Install the second right-angle bracket 2: Pick up another right-angle bracket 2 and align the limiting plates 5 at both ends of it with the position of the upper limit plate 3 of the inserted right-angle bracket 2, so that the outer wall of the limiting plate 5 also slides along the inner wall of the door and window frame 1. As the limiting plate 5 goes deeper, the triangular strip 6 gradually approaches the triangular limiting groove 4 on the limiting plate 3.

[0036] Complete the connection: Continue pushing the second right-angle bracket 2 so that the triangular strip 6 is accurately embedded into the triangular limiting groove 4. Since the distance between adjacent triangular limiting grooves 4 and triangular strips 6 is the same, as long as you keep pushing steadily, you can ensure that all triangular strips 6 can smoothly and accurately fit into the corresponding triangular limiting grooves 4. During the embedding process, the triangular strips 6 need to be heated first. The triangular strips 6 made of thermoplastic polyurethane have lower hardness as the temperature increases. If you feel that the resistance is too large, you can gently shake or fine-tune the right-angle bracket 2 to ensure that the two are tightly connected. When the triangular strip 6 is fully embedded into the triangular limiting groove 4, the two right-angle brackets 2 are firmly connected together, thereby tightly combining the door and window frame 1 and completing the corner assembly operation.

[0037] Inspection and adjustment: Depending on the actual situation, the position of the right-angle code 2 can be finely adjusted to make the triangular strip 6 fit better with the triangular limiting groove 4. If a problem is found in a certain component during the installation process, since the limiting plate 3, the limiting plate 5 and the right-angle code 2 are detachably connected by the fixing bolt 7, the fixing bolt 7 can be unscrewed with a tool to replace or adjust the corresponding component, and then the bolt is tightened again to complete the installation.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A corner bracket for doors and windows, comprising a door / window frame (1) and two right-angle brackets (2), characterized in that, The outer wall of the right-angle bracket (2) and the inner wall of the door and window frame (1) are slidably connected, and a connecting mechanism is provided on the right-angle bracket (2); The connecting mechanism includes limiting plates (3) that are fixedly installed at both ends of one of the right-angle brackets (2). The outer wall of the limiting plate (3) is slidably connected to the inner wall of the door and window frame (1). Multiple triangular limiting grooves (4) are provided on the outer wall of the limiting plate (3). Two limiting plates (5) are fixedly installed at both ends of the other right-angle bracket (2). The outer wall of the limiting plate (5) is slidably connected to the inner wall of the door and window frame (1). Multiple triangular strips (6) are fixedly installed on the outer wall of the limiting plate (5). The triangular strips (6) and the triangular limiting grooves (4) fit together.

2. A corner bracket for doors and windows according to claim 1, characterized in that, The material of the triangular strip (6) is thermoplastic polyurethane.

3. A corner bracket for doors and windows according to claim 1, characterized in that, The two limiting plates (5) are symmetrically arranged on the ends of the right-angle code (2).

4. A corner bracket for doors and windows according to claim 1, characterized in that, The distance between two adjacent triangular limiting grooves (4) is the same, the distance between two adjacent triangular strips (6) is the same, and the distance between two adjacent triangular limiting grooves (4) and the distance between two adjacent triangular strips (6) are the same.

5. A corner bracket for doors and windows according to claim 1, characterized in that, The total length of the limiting plate (3), the restricting plate (5) and the two right-angle brackets (2) is greater than the length of the door and window frame (1).

6. A corner bracket for doors and windows according to claim 1, characterized in that, The limiting plate (3) is detachably connected to the limiting plate (5) and the right-angle code (2) by fixing bolts (7).

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