Hinge connecting structure of plastic steel window

By designing the synergistic effect of the sliding base and hinge pad in the plastic steel window, the installation time and insufficient adaptability of the hardware accessories and profile connections are solved, and the stable connection and height adjustment of the sliding hinge are achieved, which improves the installation efficiency and safety of doors and windows.

CN223269811UActive Publication Date: 2025-08-26WUHAN FENGHAO TECH CO LTD
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Patent Information

Application Number
CN202422294292.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-08-26
Estimated Expiration
2034-09-20

AI Technical Summary

Technical Problem

In the prior art, the connection between hardware accessories and profiles has problems such as limited installation time and insufficient adaptability in the outer window system, especially when the window sash size or weight changes, which affects the effectiveness and safety of doors and windows.

Method used

A plastic steel window hinge connection structure is designed, including a sliding base and a hinge pad. By reserving standard C notches and hinge pads in the sliding base, a stable connection between the sliding hinge and the plastic steel window frame is achieved. The synergistic effect of the hinge pad and the hinge pads are allowed to flexibly adjust the height of the sliding hinge to accommodate window sashes of different sizes and weights.

Benefits of technology

It improves the flexibility of doors and windows installation and convenience of post-maintenance, simplifies the installation process, enhances the structural stability and use safety of doors and windows, and ensures that the hinges do not loosen or fall off when under stress.

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Abstract

The utility model relates to the technical field of plastic steel windows, in particular to a plastic steel window hinge connecting structure which comprises a first plastic steel window frame and a second plastic steel window frame which are adjacent to each other, a standard C-shaped notch used for installing hardware is reserved in the first plastic steel window frame, a sliding support base is arranged at the standard C-shaped notch of the first plastic steel window frame, and a hinge is arranged on the sliding support base. The second plastic steel window frame is provided with a sliding support hinge corresponding to the sliding support base. A hinge cushion block used for supporting the sliding support hinge and a hinge cushion plate used for adjusting the height of the hinge cushion plate are arranged in the sliding support base. According to the design, through the synergistic effect of the hinge cushion block and the hinge base plate in the sliding support base, stable connection between the sliding support hinge and the first plastic steel window frame and between the sliding support hinge and the second plastic steel window frame is achieved. The trapezoid section design of the hinge cushion block enhances the supporting strength, it is ensured that the hinge can be kept stable when stressed, and loosening and falling are avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of plastic-steel windows, in particular to a hinge connection structure for plastic-steel windows. Background Art

[0002] In the door and window industry, especially in the design and production of casement windows, the connection between hardware and profiles is a crucial step. To ensure a tight fit and stable load-bearing between hardware (such as sliding stay hinges) and profiles (such as plastic-steel window frames), the profile's cross-section often includes standard notches that match the hardware. The European standard C-notch is the most common. With its standardized dimensions and superior structural characteristics, the C-notch ensures accurate and durable hardware installation, effectively preventing loosening and falling out.

[0003] However, in outward-opening window systems, especially when stainless steel sliding hinges are used as the load-bearing components, a technical challenge arises: how to achieve tight and even load distribution at the junction between the hinge and the C-notch. The traditional approach is to install a special-shaped profile, known as a hinge pad, between the hinge and the C-notch to fill the gap in the C-notch and ensure a tight connection and even load distribution between the load-bearing hinges. While effective, this approach has significant limitations:

[0004] Limited installation timing: Traditional hinge pads must be pre-placed in the C-shaped notch of the window sash's aluminum profile before cornering. Once the sash is cornered, a semi-open cavity is formed, narrow on the outside and wide on the inside, making it difficult to reinstall or replace the hinge pads. This not only increases installation difficulty but also limits the possibility of subsequent maintenance and adjustments.

[0005] Lack of adaptability and flexibility: Because hinge pads must be pre-installed before corner assembly, they are difficult to adapt to later changes in sash size or hinge type. This is especially true when sashes of the same width but different heights (i.e., significantly different sash weights) require different specifications and load-bearing capacity of sliding hinges. If the hinge pads are mismatched, replacement or adjustment becomes difficult, impacting the performance and safety of the doors and windows. Utility Model Content

[0006] The utility model aims at the technical problems existing in the prior art and provides a hinge connection structure for a plastic-steel window to solve the problems of limited installation and poor adaptability of the plastic-steel window.

[0007] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a plastic-steel window hinge connection structure, comprising adjacent plastic-steel window frame 1 and plastic-steel window frame 2, the plastic-steel window frame 1 having a standard C-shaped slot reserved for installing hardware, the standard C-shaped slot of the plastic-steel window frame 1 being provided with a sliding support base, the plastic-steel window frame 2 being provided with a sliding support hinge corresponding to the sliding support base; the sliding support base being provided with a hinge pad for supporting the sliding support hinge, and a hinge pad for adjusting the height of the hinge pad.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, a C-shaped slot is formed in the sliding support base; and the hinge pad includes a sub-pad divided into two parts along the center direction of the C-shaped slot of the sliding support base.

[0010] Furthermore, the hinge pad has a trapezoidal cross section, and the two sub-pads are provided with embedding grooves adapted to the hinge pad.

[0011] Furthermore, the width of the two sub-pads is adapted to the width of the C-shaped slot of the sliding support base.

[0012] Furthermore, a screw hole is reserved on the sub-pad, and a bolt is installed in the screw hole, which passes through the sliding support base and is connected to the plastic-steel window frame.

[0013] Furthermore, a second screw hole is reserved on the second plastic-steel window frame, and a second bolt connected to the second plastic-steel window frame is installed in the second screw hole of the second plastic-steel window frame.

[0014] Furthermore, the distance between the outer end surface of the hinge pad and the bottom of the standard C-shaped notch is greater than the depth of the standard C-shaped notch.

[0015] Furthermore, the hinge connection structure of the plastic-steel window provided by the present invention has at least the following beneficial effects compared with the prior art:

[0016] 1. This design achieves a secure connection between the sliding support hinge and plastic-steel window frames 1 and 2 through the synergistic effect of the hinge pad and hinge plate within the sliding support base. The trapezoidal cross-section of the hinge pad enhances support strength, ensuring the hinge remains stable under load and preventing loosening and falling off.

[0017] 2. The hinge pad design allows for flexible adjustment of the sliding hinge height during installation or adjustment, accommodating window sashes of varying sizes and weights. This design addresses the traditional issues of limited installation timing and limited adaptability, improving installation flexibility and facilitating subsequent maintenance.

[0018] 3. This design simplifies the complex installation process into a few simple steps. The reserved standard C-shaped notches and sliding support base design make the installation of hardware accessories more convenient and accurate. At the same time, the modular design of the hinge pad and hinge spacer also reduces the debugging time during the installation process and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the local structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1. Plastic-steel window frame one; 2. Plastic-steel window frame two; 2.1. Screw hole two; 3. Sliding support base; 4. Sliding support hinge; 5. Hinge pad; 6. Hinge pad; 6.1. Groove; 6.2. Screw hole one; 7. Bolt one; 8. Bolt two. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] It should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integrated structures. Those skilled in the art will understand the specific meanings of such terms in this patent based on specific circumstances.

[0025] like Figure 1 and Figure 2 As shown, the plastic-steel window hinge connection structure of the present invention includes adjacent plastic-steel window frame 1 and plastic-steel window frame 2. A standard C-shaped notch for installing hardware is reserved on the plastic-steel window frame 1. A sliding support base 3 is installed at the standard C-shaped notch of the plastic-steel window frame 1, and a sliding support hinge 4 corresponding to the sliding support base 3 is installed on the plastic-steel window frame 2; a hinge pad 5 for supporting the sliding support hinge 4 and a hinge pad 6 for adjusting the height of the hinge pad 5 are provided in the sliding support base 3.

[0026] The structure primarily consists of adjacent plastic-steel window frames 1 and 2, connected by a sliding support base 3 and a sliding support hinge 4. Plastic-steel window frame 1 has a standard C-shaped notch reserved for mounting hardware. A specially designed sliding support base 3 is installed within the C-shaped notch. This base integrates two key components: a hinge block 5 and a hinge plate 6.

[0027] Hinge pad 5: Located inside the sliding support base 3, it is primarily used to support and secure the sliding support hinge 4, ensuring the hinge remains stable when subjected to stress. Its shape and size are designed to match the sliding support hinge 4 to achieve a tight fit and even force distribution.

[0028] Hinge pad 6: Also located inside the sliding support base 3, its primary function is to adjust the height of the hinge pad 5, thereby fine-tuning the installation height of the sliding support hinge 4. This design allows for flexible adjustment of the hinge height during installation or adjustment, ensuring smooth opening and closing of the door or window.

[0029] The principle of the entire connection structure lies in firmly connecting plastic-steel window frame 1 and plastic-steel window frame 2 via a sliding support base 3. The synergistic effect of a hinge block 5 and hinge pad 6 allows for precise support and height adjustment of the sliding support hinge 4. This design not only improves the structural stability and operational safety of doors and windows, but also simplifies the installation and adjustment process, increasing work efficiency.

[0030] As an embodiment, a C-shaped slot is formed in the sliding support base 3 ; the hinge pad 6 includes a sub-pad divided into two along the center direction of the C-shaped slot of the sliding support base 3 .

[0031] The two sub-pads are divided into two parts along the center of the C-shaped slot of the sliding support base 3. This design enables the hinge pad 6 to adapt to the shape of the C-shaped slot more flexibly and provides more installation and adjustment space.

[0032] Specifically, the hinge pad 5 has a trapezoidal cross section, and the two sub-pads are provided with embedding grooves 6.1 adapted to the hinge pad 5.

[0033] The hinge pad 5 adopts a trapezoidal cross-section design, which not only enhances its support strength but also allows for a more stable installation in the C-shaped slot. Furthermore, the grooves 6.1 provided on the two sub-plates, adapted for the hinge pad 5, ensure that the hinge pad 5 can be precisely embedded and fixed between the sub-plates, thereby effectively supporting the sliding hinge 4.

[0034] The width of the two sub-pads is adapted to the width of the C-shaped slot of the sliding support base 3, ensuring that the hinge pad 6 can be tightly installed in the C-shaped slot without shaking or loosening.

[0035] As an embodiment, a screw hole 6.2 is reserved on the sub-pad, and a bolt 7 is installed in the screw hole 6.2, which passes through the sliding support base 3 and is connected to the plastic-steel window frame 1.

[0036] The plastic-steel window frame 2 is provided with a second screw hole 2.1, and a bolt 8 connected to the plastic-steel window frame 2 is installed in the second screw hole 2.1 of the plastic-steel window frame 2.

[0037] Through the two aforementioned fixing methods, plastic-steel window frame 1 and plastic-steel window frame 2 form a stable connection structure through the sliding support base 3, sliding support hinge 4, hinge pad 5, hinge backing plate including sub-backing plate and other components. This structure can not only withstand the various forces when the door and window are opened and closed, but also ensure the sealing and service life of the door and window.

[0038] As an implementation method, the standard C-shaped groove depth is 5.5 mm, and the distance between the outer end surface of the hinge pad 5 and the bottom of the standard C-shaped groove is greater than the depth of the standard C-shaped groove. By designing the outer end surface of the hinge pad 5 to be higher than the distance between the bottom of the standard C-shaped groove, a stable support and flexible adjustment of the sliding hinge 4 is achieved, and it also helps to improve the sealing performance and service life of doors and windows.

[0039] It should be noted that, in this article, the terms "include", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. Unless otherwise expressly specified and limited, the terms "install", "connect", and "connect" 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0040] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0041] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A hinge connection structure for a plastic-steel window, comprising adjacent plastic-steel window frames 1 (1) and 2 (2), wherein the plastic-steel window frame 1 (1) is provided with a standard C-shaped notch for mounting hardware, characterized in that: A sliding support base (3) is installed at the standard C-shaped notch of the plastic-steel window frame 1 (1), and a sliding support hinge (4) corresponding to the sliding support base (3) is installed on the plastic-steel window frame 2 (2); a hinge pad (5) for supporting the sliding support hinge (4) and a hinge pad (6) for adjusting the height of the hinge pad (5) are provided in the sliding support base (3).

2. The hinge connection structure of the plastic-steel window according to claim 1, characterized in that: A C-shaped slot is formed in the sliding support base (3); and the hinge pad (6) comprises a sub-pad divided into two along the center of the notch direction of the C-shaped slot of the sliding support base (3).

3. The hinge connection structure of the plastic-steel window according to claim 2, characterized in that: The hinge pad (5) has a trapezoidal cross-section, and the two sub-pads are provided with embedding grooves (6.1) adapted to the hinge pad (5).

4. The hinge connection structure of the plastic-steel window according to claim 2, characterized in that: The width of the two sub-pads is adapted to the width of the C-shaped slot of the sliding support base (3).

5. The hinge connection structure of the plastic-steel window according to claim 2, characterized in that: A screw hole (6.2) is reserved on the sub-pad, and a bolt (7) is installed in the screw hole (6.2) that passes through the sliding support base (3) and is connected to the plastic steel window frame (1).

6. The hinge connection structure of the plastic-steel window according to claim 1 or 5, characterized in that: The second plastic-steel window frame (2) is provided with a second screw hole (2.1), and the second screw hole (2.1) of the second plastic-steel window frame (2) is provided with a second bolt (8) connected to the second plastic-steel window frame (2).

7. The hinge connection structure of the plastic-steel window according to claim 1, characterized in that: The distance between the outer end surface of the hinge pad (5) and the bottom of the standard C-shaped notch is greater than the depth of the standard C-shaped notch.