Hinge for aluminum alloy doors and windows
By using sealing components in the hinges to prevent rainwater and dust from entering the screw connection points, the problem of loosening caused by rusted screws in aluminum alloy door and window hinges is solved, thus improving the service life of the hinges and the firmness of the connection.
Patent Information
- Application Number
- CN202520310117.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Traditional aluminum alloy door and window hinges are prone to rust when the screw heads are exposed to the external environment, which can lead to loose connections and affect the normal opening and closing and safety of doors and windows.
A hinge for aluminum alloy doors and windows has been designed, employing a sealing component including first and second sealing gaskets located at the inner bottom and inner wall of the screw head receiving groove, respectively, to prevent rainwater and dust from entering the screw connection area and enhance sealing performance.
It effectively prevents moisture and dust from entering the screw connection area, avoids screw rust, and improves the service life of the hinge and the firmness of the connection.
Smart Images

Figure CN223975021U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window hinge technology, specifically to a hinge for aluminum alloy doors and windows. Background Technology
[0002] Aluminum alloy door and window hinges are mechanical devices used to connect aluminum alloy door and window frames and door and window sashes. They allow the door and window sashes to rotate relative to the door and window frames, thereby enabling the opening and closing of doors and windows.
[0003] In traditional aluminum alloy door and window hinge designs, when screws are used to install hinges on door and window frames and sashes, the space for the screw heads is often not effectively sealed. After screws are installed, the screw heads are often directly exposed to the external environment or only simply covered. This allows rainwater and dust to easily enter the connection through the gap between the screw head and the mounting hole. Since aluminum alloy is prone to corrosion after contact with moisture and dust, screws are especially prone to rusting in such a humid and dusty environment. Rusting of screws will reduce their tightening force, causing the hinge connection to loosen, affecting the normal opening and closing of doors and windows, and even endangering the safety of doors and windows.
[0004] Therefore, a hinge for aluminum alloy doors and windows is provided to address the above-mentioned problems. Utility Model Content
[0005] The purpose of this utility model is to provide a hinge for aluminum alloy doors and windows to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model relates to a hinge for aluminum alloy doors and windows, comprising an installation part and a rotating part, which are rotatably connected. A first connecting plate is installed on both sides of the rotating part, and a first connecting hole is formed on the outer surface of each of the first connecting plates. Two sets of second connecting plates are installed on the outer surface of the installation part, and a second connecting hole is formed on the outer surface of each of the second connecting plates. A screw head receiving groove is formed inside each of the second connecting holes, and a sealing component is provided inside the screw head receiving groove.
[0008] Furthermore, a first mounting groove is provided at the bottom of the screw head receiving groove.
[0009] Furthermore, a second mounting groove is provided on the inner wall of the screw head receiving groove.
[0010] Furthermore, the sealing assembly includes a first sealing gasket, which is installed inside the first mounting groove.
[0011] Furthermore, the sealing assembly also includes a second sealing gasket, which is installed inside the second mounting groove.
[0012] Furthermore, a third sealing gasket is installed on the lower surface of both sets of the second connecting plates, and the two sets of the third sealing gaskets are respectively disposed around the two sets of the second connecting holes.
[0013] This utility model has the following beneficial effects:
[0014] (1) This utility model achieves a sealing effect through the first sealing gasket and the second sealing gasket. The second sealing gasket is located in the second mounting groove on the inner wall of the screw head receiving groove, sealing the screw head from the side and preventing external substances such as rainwater and dust from entering the connection part through the gaps around the screw head. The first sealing gasket is located in the first mounting groove at the bottom of the screw head receiving groove, which can further block rainwater and dust entering through the second sealing gasket. The setting of the sealing component effectively prevents external moisture and dust from entering the screw head receiving groove and the second connection hole, avoiding the situation where moisture and dust enter the screw connection part, accelerate the rust and corrosion of the screw, and thus affect the service life of the hinge and the firmness of the connection.
[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of one side of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the other side of the overall structure of this utility model;
[0019] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;
[0020] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the diagram;
[0021] The attached diagram lists the components represented by each number as follows:
[0022] In the figure: 1. Mounting part; 2. Rotating part; 3. First connecting plate; 4. First connecting hole; 5. Second connecting plate; 6. Second connecting hole; 7. Screw head receiving groove; 701. First mounting groove; 702. Second mounting groove; 8. First sealing gasket; 9. Second sealing gasket; 10. Third sealing gasket. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1 - Figure 4 As shown, this utility model is a hinge for aluminum alloy doors and windows, including an installation part 1 and a rotating part 2. The installation part 1 and the rotating part 2 are rotatably connected. A first connecting plate 3 is installed on both sides of the rotating part 2. A first connecting hole 4 is opened on the outer surface of the first connecting plate 3. Two sets of second connecting plates 5 are installed on the outer surface of the installation part 1. A second connecting hole 6 is opened on the outer surface of the second connecting plate 5. A screw head receiving groove 7 is opened inside the second connecting hole 6. A sealing component is provided inside the screw head receiving groove 7.
[0025] The bottom of the screw head receiving groove 7 is provided with a first mounting groove 701;
[0026] The inner wall of the screw head receiving groove 7 is provided with a second mounting groove 702;
[0027] The sealing assembly includes a first sealing gasket 8, and the first sealing gasket 8 is installed inside the first mounting groove 701;
[0028] The sealing assembly also includes a second sealing gasket 9, which is installed inside the second mounting groove 702;
[0029] When the screw passes through the second connecting hole 6 to install the hinge on the door or window frame, the screw head will enter the screw head receiving groove 7. In this screw head receiving groove 7, the first sealing gasket 8 and the second sealing gasket 9 play a sealing role. The second sealing gasket 9 is located in the second mounting groove 702 on the inner wall of the screw head receiving groove 7, sealing the screw head from the side and preventing external substances such as rainwater and dust from entering the connection part through the gaps around the screw head. The first sealing gasket 8 is located in the first mounting groove 701 at the inner bottom of the screw head receiving groove 7, which can further block rainwater and dust from entering through the second sealing gasket 9. The setting of the sealing component effectively prevents external moisture and dust from entering the screw head receiving groove 7 and the second connecting hole 6, avoiding the situation where moisture and dust enter the screw connection part, accelerate the rust and corrosion of the screw, and thus affect the service life of the hinge and the firmness of the connection.
[0030] The lower surfaces of both sets of second connecting plates 5 are equipped with third sealing gaskets 10, and the two sets of third sealing gaskets 10 are respectively arranged around the two sets of second connecting holes 6.
[0031] Two sets of third sealing gaskets 10 are respectively set around the two sets of second connecting holes 6. After the hinge is installed, the third sealing gaskets 10 can prevent moisture, dust and other substances from entering the connection of the door and window frame from the edge gaps of the two sets of second connecting plates 5, further improving the sealing of the connection.
[0032] In use, first fix the first connecting plate 3, i.e. the rotating part 2, to the door and window sash by passing the mounting part 1 through the first connecting hole 4 with screws, and at the same time fix the second connecting plate 5 and the mounting part 1 to the door and window frame by passing the second connecting hole 6 with screws.
[0033] When the screw passes through the second connecting hole 6 to install the hinge on the door or window frame, the screw head will enter the screw head receiving groove 7. In this screw head receiving groove 7, the first sealing gasket 8 and the second sealing gasket 9 play a sealing role. The second sealing gasket 9 is located in the second mounting groove 702 on the inner wall of the screw head receiving groove 7, sealing the screw head from the side and preventing external substances such as rainwater and dust from entering the connection part through the gaps around the screw head. The first sealing gasket 8 is located in the first mounting groove 701 at the inner bottom of the screw head receiving groove 7, which can further block rainwater and dust from entering through the second sealing gasket 9. The setting of the sealing component effectively prevents external moisture and dust from entering the screw head receiving groove 7 and the second connecting hole 6, avoiding the situation where moisture and dust enter the screw connection part, accelerate the rust and corrosion of the screw, and thus affect the service life of the hinge and the firmness of the connection.
[0034] Two sets of third sealing gaskets 10 are respectively set around the two sets of second connecting holes 6. After the hinge is installed, the third sealing gaskets 10 can prevent moisture, dust and other substances from entering the connection of the door and window frame from the edge gaps of the two sets of second connecting plates 5, further improving the sealing of the connection.
[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An aluminum alloy hinge for doors and windows, comprising a mounting part (1) and a rotating part (2), characterized in that: The mounting part (1) and the rotating part (2) are rotationally connected, both sides of the rotating part (2) are provided with the first connecting plate (3), the outer surface of the first connecting plate (3) is provided with the first connecting hole (4), the outer surface of the mounting part (1) is provided with two groups of the second connecting plate (5), the outer surface of the second connecting plate (5) is provided with the second connecting hole (6), the inside of the second connecting hole (6) is provided with the screw head accommodating groove (7), and the inside of the screw head accommodating groove (7) is provided with the sealing assembly.
2. The hinge for aluminum alloy doors and windows according to claim 1, characterized in that: The inner bottom of the screw head accommodating groove (7) is provided with the first mounting groove (701).
3. The hinge for aluminum alloy doors and windows according to claim 1, characterized in that: The inner wall of the screw head accommodating groove (7) is provided with the second mounting groove (702).
4. The hinge for aluminum doors and windows according to claim 2, characterized in that: The sealing assembly comprises the first sealing gasket (8), and the inside of the first mounting groove (701) is provided with the first sealing gasket (8).
5. The hinge for aluminum doors and windows according to claim 3, characterized in that: The sealing assembly further comprises the second sealing gasket (9), and the inside of the second mounting groove (702) is provided with the second sealing gasket (9).
6. The hinge for aluminum doors and windows according to claim 1, characterized in that: The lower surface of the two groups of second connecting plates (5) is provided with the third sealing gasket (10), and the two groups of third sealing gaskets (10) are arranged around the two groups of second connecting holes (6) respectively.