Hinge and door and window with improved sealing

By introducing fitting grooves and riveting grooves into the hinge design, the problem of reduced sealing performance of concealed hinges in the middle of high doors and windows is solved, achieving higher sealing performance and stability, and improving the overall airtightness and load-bearing capacity of doors and windows.

CN224396258UActive Publication Date: 2026-06-23BEIJING HUANUO JINYU DOOR & WINDOW CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING HUANUO JINYU DOOR & WINDOW CO LTD
Filing Date
2025-07-12
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing concealed hinges are prone to slight deformation in the middle of taller doors and windows, resulting in reduced sealing performance.

Method used

A hinge structure including a first mounting base and a second mounting base is designed. By setting a fitting groove and a riveting groove on the second mounting base, the hinge can be stably connected and its position adjusted, ensuring the sealing and stability of the fixed frame and the opening and closing parts.

Benefits of technology

It improves the sealing effect and stability of the hinge when fully closed, prevents deformation, and enhances the overall airtightness and load-bearing capacity of doors and windows.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to hinge technical field, and disclose a kind of hinge and door and window for improving sealing, including first mount and second mount for fixed installation, first mount side is equipped with several first axle seat, and several first axle seat are rotatably connected with first rotating piece between, and first rotating piece side is rotatably connected with second rotating piece, and second rotating piece side is rotatably connected with connecting shaft, and second mount is fixedly connected with connecting shaft.The utility model in the middle part position of when opening and closing piece is completely closed in fixed frame body, since opening and closing piece is equipped with the hinge, it plays to prevent the position between fixed frame body and opening and closing piece from appearing deformation condition, improve the sealing effect after fixed frame body and opening and closing piece close, simultaneously, through the hinge can share the load-bearing performance of two guide hinges of fixed frame body and opening and closing piece upper and lower position, improve the stability after fixed frame body and opening and closing piece installation.
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Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically to a hinge and door / window that improves sealing performance. Background Technology

[0002] A hinge, also known as a hinge leaf, is a component that connects two parts of an object and allows them to move. Common hinges are used for cabinet doors, windows, doors, etc.

[0003] A search revealed a patent, CN210508762U, which discloses a hinge for improving the airtightness of doors and windows. The hinge includes a base, a rotating piece, a pivot, and base fixing holes. The rotating piece is mounted on the base and rotatably connected via the pivot. Multiple base fixing holes are provided on the rotating piece, allowing the base to be fixedly installed on the outer frame of the door or window. One side of the rotating piece is flat, on which a connecting piece for assembly onto the door or window is fixedly installed, making the hinge and door / window an integrated structure. This significantly improves the hinge's load-bearing capacity and prevents it from slipping. Because it's an external connection, it doesn't damage the door / window sealing strip, thus ensuring the overall airtightness of the door / window. The hinge's integrated structure with the door / window via the connecting piece significantly improves its load-bearing capacity and enhances the overall airtightness of the window without damaging the sealing strip.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] There are many types of doors and windows. In order to improve the aesthetics of doors and windows, many casement doors and windows use concealed hinges. However, due to the wide variety of door and window sizes, and because concealed hinges require a certain opening and closing stroke, they are generally only installed at the top and bottom of the door or window. For taller doors and windows, slight deformation may occur in the middle, resulting in reduced sealing in the middle of the door or window. Therefore, there is an urgent need in this field to improve the hinges in order to solve the defects of the existing technology. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a hinge and door / window with improved sealing performance, enhancing the sealing effect of the fixed frame and opening / closing components after closure.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] In the first aspect, this utility model discloses a hinge that improves sealing performance, including a first mounting base and a second mounting base for fixed installation. A plurality of first bearing seats are provided on one side of the first mounting base. A first rotating member is rotatably connected between the plurality of first bearing seats. A second rotating member is rotatably connected to one side of the first rotating member. A connecting shaft is rotatably connected to one side of the second rotating member. The second mounting base is fixedly connected to the connecting shaft.

[0009] The second rotating component can be rotated to fit against the side of the first shaft seat, and the second mounting base can be rotated to fit against the side of the first shaft seat and the second rotating component.

[0010] Preferably, the second mounting base has a first fitting groove on both ends of the side that is adapted to the side of the first bearing seat and is arc-shaped, and a second fitting groove adapted to the second rotating component is provided at the middle position of one side of the second mounting base.

[0011] Secondly, this utility model discloses a door and window, including a fixed frame and an opening and closing component adapted to the fixed frame. Guide hinges are fixedly installed between the upper and lower parts of the opening and closing component and the fixed frame, including the aforementioned hinges. A first mounting base is fixedly installed on the inner side of the fixed frame, and a second mounting base is fixedly installed on the side of the opening and closing component.

[0012] Preferably, the inner wall of the fixed frame is provided with a first mounting groove that is adapted to the first mounting seat, and the side of the opening and closing component is provided with a second mounting groove that is adapted to the second mounting seat.

[0013] Preferably, the second mounting base has a first riveting groove through both sides, and a first rivet that can rotate is riveted in the first riveting groove. One side of the first rivet extends to the outside and has a first snap-fit ​​plate on its side. The length of the first snap-fit ​​plate is greater than the width of the second mounting base and is adapted to the second mounting groove. The first rivet has a through groove in the middle, and the second mounting base has a rotating groove on one side that is adapted to the first snap-fit ​​plate.

[0014] Preferably, the first mounting base has a second riveting groove through both sides, and a rotatable second riveting component is riveted in the second riveting groove. A second snap-fit ​​plate adapted to the first mounting groove is fixedly installed on one side of the second riveting component. The width of the second snap-fit ​​plate is greater than the width of the first mounting base and is adapted to the internal cavity of the first mounting groove. The second riveting component has a through second groove.

[0015] Preferably, a first snap-fit ​​groove is provided on one side of the second rivet, and the first snap-fit ​​groove is polygonal.

[0016] Preferably, the first rivet has a second snap-fit ​​groove, which is polygonal in shape.

[0017] To address the shortcomings of existing technologies, this utility model provides a hinge and door / window with improved sealing performance, overcoming the deficiencies of existing technologies. The beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, when the opening and closing component is completely closed in the fixed frame, the hinge installed in the middle of the opening and closing component prevents deformation between the fixed frame and the opening and closing component, improves the sealing effect after the fixed frame and the opening and closing component are closed, and at the same time, the hinge can share the load-bearing capacity of the two guide hinges at the top and bottom of the fixed frame and the opening and closing component, thereby improving the stability of the fixed frame and the opening and closing component after installation.

[0019] 2. In this utility model, when the hinge is fully closed, the first fitting groove on the side of the second mounting base fits against the side of the first shaft seat, and the second rotating part is engaged in the position of the second fitting groove, which not only plays a guiding role, but also achieves high stability between the fixed frame and the opening and closing parts when the entire hinge is closed, further improving the sealing effect after the fixed frame and the opening and closing parts are closed.

[0020] 3. In this utility model, the second snap-fit ​​plate that can be adapted to the first mounting slot and the first snap-fit ​​plate that can be adapted to the second mounting slot facilitate the pre-fixing and position adjustment of the overall hinge during installation.

[0021] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0023] Figure 1 This is a schematic diagram of the overall structure of the hinge after folding in this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the second mounting base after rotation in this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the second rotating component in this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the second mounting base in this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the hinge installed behind the fixed frame and the opening / closing component in this utility model;

[0028] Figure 6 for Figure 4 Enlarged structural diagram at point A in the middle;

[0029] Figure 7 for Figure 4 Enlarged structural diagram at point B;

[0030] Figure 8 for Figure 5 Enlarged structural diagram at point C.

[0031] In the figure: 1. First mounting base; 2. Second mounting base; 3. First shaft seat; 4. First rotating component; 5. Second rotating component; 6. Connecting shaft; 7. First fitting groove; 8. Second fitting groove; 9. Fixed frame; 10. Opening and closing component; 11. First mounting groove; 12. Second mounting groove; 13. First riveting groove; 14. First riveting component; 15. First through groove; 16. First snap-fit ​​plate; 17. Rotating groove; 18. Second snap-fit ​​plate; 19. Second riveting component; 20. Second riveting groove; 21. Second through groove; 22. First snap-fit ​​groove; 23. Second snap-fit ​​groove. Detailed Implementation

[0032] 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.

[0033] Please see Figure 5 A door or window includes a fixed frame 9 and an opening / closing component 10 adapted to the fixed frame 9. Guide hinges are fixedly installed between the upper and lower parts of the opening / closing component 10 and the fixed frame 9. The fixed frame 9 can be a window frame or a door frame, and the opening / closing component 10 can be an opening / closing window or an opening / closing door. The opening / closing component 10 achieves opening and closing with the fixed frame 9 through two built-in hidden guide hinges at the top and bottom. The guide hinges are existing known technology and are not shown in the figure.

[0034] Please see Figures 1-8 A hinge for improving sealing performance includes a first mounting base 1 and a second mounting base 2 for fixed installation. The first mounting base 1 has a plurality of first bearing seats 3 on one side, and a first rotating member 4 is rotatably connected between the plurality of first bearing seats 3. A second rotating member 5 is rotatably connected to one side of the first rotating member 4, and a connecting shaft 6 is rotatably connected to one side of the second rotating member 5. The second mounting base 2 is fixedly connected to the connecting shaft 6. The second rotating member 5 can rotate to fit against the side of the first bearing seat 3, and the second mounting base 2 can rotate to fit against the side of the first bearing seat 3 and the side of the second rotating member 5. The first mounting base 1 is fixedly installed on the inner side of the fixed frame 9, and the second mounting base 2 is fixedly installed on the side of the opening and closing member 10.

[0035] Specifically, the integral hinge is fixedly installed between the fixed frame 9 and the opening / closing component 10 using fasteners. The first mounting base 1 is fixedly installed on the inner wall of the fixed frame 9, and the second mounting base 2 is fixedly installed on one side of the opening / closing component 10. The number of hinges installed is determined by the height of the integral fixed frame 9 and the opening / closing component 10. When the opening / closing component 10 is rotated, the second mounting base 2 rotates with the second rotating component 5, the second rotating component 5 rotates with the first rotating component 4, and the first rotating component 4 rotates with the first shaft seat 3. When the opening / closing component 10 is completely closed within the fixed frame 9, the integral hinge... Figure 1 As shown, the hinge enables the closure of the fixed frame 9 and the opening / closing component 10. Since the hinge is installed in the middle of the opening / closing component 10, it prevents deformation between the fixed frame 9 and the opening / closing component 10, improves the sealing effect after the fixed frame 9 and the opening / closing component 10 are closed. At the same time, the hinge can share the load-bearing capacity of the two guide hinges at the upper and lower positions of the fixed frame 9 and the opening / closing component 10, and improve the stability of the fixed frame 9 and the opening / closing component 10 after installation.

[0036] As a technical optimization of this utility model, the two ends of the second mounting base 2 are provided with first fitting grooves 7 that are adapted to the side of the first bearing seat 3 and are arc-shaped. The middle part of one side of the second mounting base 2 is provided with a second fitting groove 8 that is adapted to the second rotating part 5. When the hinge is fully closed, the first fitting groove 7 on the side of the second mounting base 2 fits with the side of the first bearing seat 3, and the second rotating part 5 is engaged in the position of the second fitting groove 8, which not only plays a guiding role, but also achieves high stability between the fixed frame 9 and the opening and closing part 10 when the entire hinge is closed, further improving the sealing effect after the fixed frame 9 and the opening and closing part 10 are closed.

[0037] As a technical optimization of this utility model, the inner side wall of the fixed frame 9 is provided with a first mounting groove 11 that is adapted to the first mounting seat 1, and the side of the opening and closing component 10 is provided with a second mounting groove 12 that is adapted to the second mounting seat 2. The first mounting groove 11 and the second mounting groove 12 are used to limit the first mounting seat 1 and the second mounting seat 2, and the overall hinge can slide and adjust its position along the first mounting groove 11 and the second mounting groove 12 to improve the stability of the overall hinge when installed behind the door and window.

[0038] As a technical optimization of this utility model, the second mounting base 2 has a first riveting groove 13 through both sides. A first riveting member 14 that can rotate is riveted in the first riveting groove 13. One side of the first riveting member 14 extends to the outside and has a first snap-fit ​​plate 16 on its side. The length of the first snap-fit ​​plate 16 is greater than the width of the second mounting base 2 and is adapted to the second mounting groove 12. A first through groove 15 is provided in the middle of the first riveting member 14. A rotating groove 17 adapted to the first snap-fit ​​plate 16 is provided on one side of the second mounting base 2. A second snap-fit ​​groove 23 is provided in the first riveting member 14. The second snap-fit ​​groove 23 is polygonal.

[0039] Specifically, during installation, firstly, by engaging the second locking slot 23 with an Allen wrench, the first riveting component 14 is rotated, causing the first locking plate 16 to rotate into the rotating slot 17. The second mounting base 2 is then engaged into the second mounting slot 12. The first riveting component 14 is rotated again, causing the first locking plate 16 to rotate. The length of the first locking plate 16 is greater than the width of the second mounting base 2. Both ends of the first locking plate 16 are engaged with the corresponding locking slots on the inner sidewall of the first mounting slot 11. After the overall hinge position is adjusted, a self-tapping screw is used to connect the hinge to the opening and closing component 10 through the first through slot 15 to fix the overall hinge position. This facilitates pre-fixing of the overall hinge position and adjustment of the position during installation.

[0040] As a technical optimization of this utility model, the first mounting base 1 has a second riveting groove 20 through both sides, and a rotatable second riveting member 19 is riveted in the second riveting groove 20. A second snap-fit ​​plate 18 adapted to the first mounting groove 11 is fixedly installed on one side of the second riveting member 19. The width of the second snap-fit ​​plate 18 is greater than the width of the first mounting base 1 and is adapted to the internal cavity of the first mounting groove 11. The second riveting member 19 has a through second through groove 21, and a first snap-fit ​​groove 22 is opened on one side of the second riveting member 19. The first snap-fit ​​groove 22 is polygonal.

[0041] Specifically, when installing the first mounting base 1, the first mounting base 1 is snapped into the first mounting groove 11 and then snapped into the first snap-fit ​​groove 22 using an Allen wrench. The second snap-fit ​​plate 18 is rotated, and the length of the second snap-fit ​​plate 18 is greater than the width of the first mounting base 1. The second snap-fit ​​plate 18 is snapped into the slot in the first mounting groove 11. After the hinge position is adjusted, the fixing frame 9 and the first mounting base 1 are fixed by using a self-tapping screw tube to penetrate the second through groove 21. This facilitates the pre-fixation of the entire hinge during installation and the adjustment of its position during installation.

[0042] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hinge for improving sealing performance, characterized in that, It includes a first mounting base (1) and a second mounting base (2) for fixed installation. The first mounting base (1) has a plurality of first bearing seats (3) on one side. A first rotating member (4) is rotatably connected between the plurality of first bearing seats (3). A second rotating member (5) is rotatably connected to one side of the first rotating member (4). A connecting shaft (6) is rotatably connected to one side of the second rotating member (5). The second mounting base (2) is fixedly connected to the connecting shaft (6). The second rotating member (5) can rotate to fit against the side of the first shaft seat (3), and the second mounting seat (2) can rotate to fit against the side of the first shaft seat (3) and the second rotating member (5).

2. The hinge for improving sealing performance according to claim 1, characterized in that, The second mounting base (2) has a first fitting groove (7) on both sides that is adapted to the side of the first shaft seat (3) and is arc-shaped. The second mounting base (2) has a second fitting groove (8) on the middle of one side that is adapted to the second rotating part (5).

3. A door or window, comprising a fixed frame (9) and an opening / closing component (10) adapted to the fixed frame (9), wherein guide hinges are fixedly installed between the upper and lower parts of the opening / closing component (10) and the fixed frame (9), characterized in that, The hinge includes any one of claims 1-2, wherein the first mounting base (1) is fixedly mounted on the inner side of the fixed frame (9), and the second mounting base (2) is fixedly mounted on the side of the opening and closing member (10).

4. A door and window according to claim 3, characterized in that, The inner wall of the fixed frame (9) is provided with a first mounting groove (11) that is adapted to the first mounting seat (1), and the side of the opening and closing part (10) is provided with a second mounting groove (12) that is adapted to the second mounting seat (2).

5. A door and window according to claim 4, characterized in that, The second mounting base (2) has a first riveting groove (13) through both sides. A first riveting member (14) that can rotate is riveted in the first riveting groove (13). One side of the first riveting member (14) extends to the outside and a first snap-fit ​​plate (16) is provided on its side. The length of the first snap-fit ​​plate (16) is greater than the width of the second mounting base (2) and is adapted to the second mounting groove (12). A first through groove (15) is provided in the middle of the first riveting member (14). A rotating groove (17) adapted to the first snap-fit ​​plate (16) is provided on one side of the second mounting base (2).

6. A door and window according to claim 4, characterized in that, The first mounting base (1) has a second riveting groove (20) through both sides. A second riveting piece (19) that can rotate is riveted in the second riveting groove (20). A second snap plate (18) that is adapted to the first mounting groove (11) is fixedly installed on one side of the second riveting piece (19). The width of the second snap plate (18) is greater than the width of the first mounting base (1) and is adapted to the internal cavity of the first mounting groove (11). The second riveting piece (19) has a through second through groove (21).

7. A door and window according to claim 6, characterized in that, The second rivet (19) has a first snap-fit ​​groove (22) on one side, and the first snap-fit ​​groove (22) is polygonal.

8. A door and window according to claim 5, characterized in that, The first rivet (14) has a second snap-fit ​​groove (23) inside, and the second snap-fit ​​groove (23) is polygonal.