System door hinge

Abstract

The utility model provides a system door hinge which comprises a hinge shell A, a hinge shell B, a connecting plate, a guide plate, a fixing plate A, a fixing plate B, a guide column and connecting shafts, a secondary opening structure is adopted, 180-degree rotating opening and closing can be completed only through two connecting shafts, the number of the connecting shafts is reduced, production and installation cost is saved, and installation is more convenient and faster. And in the rotating process, a larger rotating space is provided, so that the door and window rotating device can adapt to doors and windows with thicker side surfaces and is higher in adaptability and universality.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge technical field, specifically a kind of system door hinge. BACKGROUND

[0002] At present, the door that can rotate 180 ° is more and more popular in modern home and architectural design due to the advantages of convenient personnel access and goods handling, beauty, elegance, space saving and the like. This kind of door usually adopts a special 180 ° hinge, so that the door leaf can be fully unfolded when opened. The existing 180 ° hinge is generally realized by the cooperation of five connecting shafts, and when the side mounting plate of the door and the door frame is relatively thick, the door leaf and the door frame are prone to collision and damage during the rotation of the door leaf. SUMMARY

[0003] In view of the defects of the existing hinge, the technical problem to be solved by the utility model is to provide a system door hinge, which adopts a twice-opening structure, can realize 180 ° rotation opening and closing by using only two connecting shafts, has a larger rotation space during rotation, can adapt to doors and windows with thicker side thickness, and has stronger adaptability.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, the utility model is realized by the following technical measures: a system door hinge, comprising a hinge shell A, a hinge shell B, a connecting plate, a guide plate, a fixed plate A, a fixed plate B, a guide column, a connecting shaft,

[0005] The hinge shell A and the hinge shell B are each provided with a connecting shaft hole and a containing cavity;

[0006] The connecting plate is provided with a connecting shaft hole at each end, and is further provided with a connecting hole and a guide column hole;

[0007] The guide plate is provided with a connecting hole, and the guide plate and the connecting plate are connected by inserting a connecting pin into the connecting hole. The guide plate is provided with a guide end A and a hook-shaped guide end B at both ends;

[0008] The fixed plate A and the fixed plate B are respectively arranged in the containing cavities and fixedly connected with the hinge shell A and the hinge shell B. The fixed plate A is provided with a guide arc groove and a guide arc surface A. One end of the guide arc surface A is provided with a limiting portion. The fixed plate B is provided with a guide arc surface B. One side of the guide arc surface B is provided with a containing groove corresponding to the shape of the guide end B;

[0009] One end of the guide column is fixedly arranged in the guide column hole of the connecting plate, and the other end is sleeved in the guide arc groove;

[0010] The connecting shaft has two, which are respectively arranged in the connecting shaft holes on both ends of the connecting plate, the hinge shell A and the hinge shell B, so that both ends of the connecting plate are movably connected with the hinge shell A and the hinge shell B.

[0011] Further, the number of the fixed plate A, the fixed plate B and the guide plate is 2, which are arranged on the upper and lower ends of the connecting plate.

[0012] Further, the connecting shaft is provided with a bearing at both ends, and the bearing is located between the connecting plate and the hinge shell A and the hinge shell B.

[0013] Further, the fixed plate A, the fixed plate B, the hinge shell A and the hinge shell B are all provided with screw holes, and the fixed plate A and the fixed plate B are fixedly connected with the hinge shell A and the hinge shell B respectively through the screw holes and screws.

[0014] Further, the guide end A is provided with an inclined surface, and the guide end B is provided with a circular arc chamfer.

[0015] Further, the hinge shell A is provided with a guide column hole.

[0016] Further, the connecting plate is in a U-shaped structure.

[0017] Compared with the prior art, the system door hinge has the advantages that: the system door hinge adopts a twice-opening structure, and only two connecting shafts are needed to complete 180-degree rotation and opening and closing, so that the number of connecting shafts is reduced, the production and installation cost is saved, and installation is more convenient; in the rotating process, there is a larger rotating space, the system door hinge can be adapted to doors and windows with a thicker side thickness, and the adaptability and universality are stronger. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the application and are incorporated herein for explanation by way of exemplification. The present application will become more fully understood from the detailed description and accompanying drawings, and wherein:

[0019] Figure 1 It is an overall structure schematic view of the system door hinge.

[0020] Figure 2 It is an explosion structure schematic view of the system door hinge.

[0021] Figure 3 It is a cross-sectional view of the system door hinge in a door leaf closing state.

[0022] Figure 4 It is a cross-sectional view of the system door hinge in a once-opening state.

[0023] Figure 5 It is a cross-sectional view of the system door hinge in a fully opening state.

[0024] 1, hinge shell A; 2, hinge shell B; 3, connecting plate; 4, guide plate; 5, fixed plate A; 6, fixed plate B; 7, guide column; 8, bearing; 9, connecting shaft; 10, accommodating cavity; 11, screw hole; 12, connecting shaft hole; 13, guide column hole; 14, connecting hole; 15, guide end A; 16, guide end B; 17, guide arc groove; 18, guide arc surface A; 19, limiting portion; 20, guide arc surface B; 21, accommodating groove. DETAILED DESCRIPTION

[0025] The utility model will be explained in detail below with reference to the drawings and in combination with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0026] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0027] Please refer to Figure 1 , Figure 2The system door hinge provided by the embodiment comprises a hinge shell A1, a hinge shell B2, a connecting plate 3, a guide plate 4, a fixed plate A5, a fixed plate B6, a guide column 7, a bearing 8 and a connecting shaft 9. The hinge shell A1 is provided with a containing cavity 10, a plurality of screw holes 11, a connecting shaft hole 12 and a guide column hole 13. The hinge shell B2 is provided with a containing cavity 10, a plurality of screw holes 11 and a connecting shaft hole 12. The connecting plate 3 is in a U-shaped structure, and each end of the connecting plate 3 is provided with a connecting shaft hole 12. The connecting plate 3 is provided with a guide column hole 13 and a connecting hole 14 in the middle. The middle part of the guide plate 4 is provided with a connecting hole 14. The guide plate 4 and the connecting plate 3 are connected by inserting a connecting pin into the connecting hole 14. After being connected, the guide plate 4 can rotate with the connecting pin as the center. The two ends of the guide plate 4 are provided with a guide end A15 and a hook-shaped guide end B16. After being installed, the guide end A15 can slide on a guide arc surface A18, and the guide end B16 can slide on a guide arc surface B20. The guide end A15 is provided with an inclined surface, which facilitates the guide end A15 to slide out of a limiting part 19. The guide end B16 is provided with a circular arc chamfer, which facilitates the guide end B16 to slide out of a containing groove 21. The number of the fixed plate A5, the fixed plate B6 and the guide plate 4 is two, which are arranged on the upper and lower ends of the connecting plate 3. The fixed plate A5 is provided with a guide arc groove 17 and a plurality of screw holes 11. The edge of the fixed plate A5 is provided with the guide arc surface A18. One end of the guide arc surface A18 is provided with the limiting part 19. After being placed into the containing cavity 10 of the hinge shell A1, the fixed plate A5 is fixedly connected with the hinge shell A1 through the screw holes 11 and screws. The fixed plate B6 is provided with a guide arc surface B20 and a plurality of screw holes 11. After being placed into the containing cavity 10 of the hinge shell B2, the fixed plate B6 is fixedly connected with the hinge shell B2 through the screw holes 11 and screws. One end of the guide arc surface B20 is provided with the containing groove 21, which is in a hook shape and corresponds to the hook-shaped guide end B16. The containing groove 21 is used for connecting the guide end B16 of the guide plate 4. One end of the guide column 7 is fixedly arranged in the guide column hole 13 of the connecting plate 3, and the other end is sleeved in the guide arc groove 17. The connecting shaft 9 has two ends. One end of the connecting shaft 9 is sleeved in the connecting shaft hole 12 on one end of the connecting plate 3 and the hinge shell A1, and the other end of the connecting shaft 9 is sleeved in the connecting shaft hole 12 on the other end of the connecting plate 3 and the hinge shell B2, so that the two ends of the connecting plate 3 are movably connected with the hinge shell A1 and the hinge shell B2 respectively. Bearings 8 are arranged at the two ends of the connecting shaft 9 and located between the connecting shaft hole 12 of the connecting plate 3 and the connecting shaft hole 12 of the hinge shell, which is used for reducing friction and preventing abnormal sound.

[0028] Please refer to Figures 3-5The system door hinge provided by the embodiment is used in the following way: the hinge shell A1 is connected with the door frame, the hinge shell B2 is connected with the door leaf, when the door is opened, the hinge shell A1 is fixed, the hinge shell B2 rotates with the door leaf, in the first opening stage, the door leaf rotates to drive the fixed plate B6, the connecting plate 3 and the guide plate 4 to rotate around the connecting shaft 9 in the hinge shell A1 as the center, when rotating, the guide column 7 moves along the guide arc groove 17 to the position near the limiting part 19, the guide end A15 of the guide plate 4 slides on the guide arc surface A18 of the fixed plate A5 (in this process, because the guide end A15 is pressed against the guide arc surface A18, the guide end B16 cannot leave the accommodating cavity 10, so the hinge shell B2 cannot rotate around the connecting shaft 9 in the hinge shell B2 in the first rotating stage), when the guide column 7 moves to the other end of the guide arc groove 17, the first opening stage is ended, the opening angle is about 90 degrees, the guide end A15 of the guide plate 4 slides to the position of the limiting part 19 (at this time, the guide end A15 is free and not forced), the door leaf is continuously rotated, because the guide end A15 is free, the guide end B16 can slide out of the accommodating groove 21 in the fixed plate B6, after sliding out, the guide end B16 slides along the arc surface of the guide arc surface B20, the door leaf and the hinge shell B2 can rotate around the connecting shaft 9 in the hinge shell B2 as the center to the position that the door leaf is completely unfolded, at the same time, because the contact surface of the guide end B16 and the fixed plate B6 is gradually changed from the accommodating groove 21 to the guide arc surface B20, the fixed plate B6 drives the guide end B16 to rotate counterclockwise, and then drives the guide end A15 to rotate and press against the limiting part 19.

[0029] When the door leaf needs to be closed, the hinge shell A1 is fixed, the guide end B16 is pressed against the guide arc surface B20 to make the guide end A15 press against the limiting part 19, so that the guide plate 4 cannot temporarily rotate reversely, when the hinge shell B2 reversely rotates, the guide end B16 slides along the arc surface of the guide arc surface B20 and then enters the accommodating groove 21, because the shape of the accommodating groove 21 and the hook-shaped structure of the guide end B16 are matched, after entering, the guide end B16 enters the bottom of the accommodating groove 21 along the arc of the hook-shaped accommodating groove 21, when the guide end B16 enters the accommodating groove 21, the guide plate 4 rotates clockwise, the guide end A15 is separated from the limiting part 19, at this time, the first closing stroke is completed, after continuously rotating, the second closing stroke is started, the guide end A15 slides against the guide arc surface A18 after being separated from the limiting part 19, the guide column 7 reversely moves along the guide arc groove 17, until rotating back to the original position to complete the closing process.

[0030] The preferred embodiments of the utility model are described above only, and are not used for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A system door hinge, characterized by: It comprises hinge shell A (1), hinge shell B (2), connecting plate (3), guide plate (4), fixed plate A (5), fixed plate B (6), guide column (7), connecting shaft (9), The hinge shell A (1) and the hinge shell B (2) are each provided with a connecting shaft hole (12) and a receiving cavity (10); The connecting plate (3) is provided with a connecting shaft hole (12) at each end, and is further provided with a connecting hole (14) and a guide column hole (13); The guide plate (4) is provided with a connecting hole (14), and the guide plate (4) and the connecting plate (3) are connected by inserting a connecting pin into the connecting hole (14); the guide plate (4) is provided with a guide end A (15) and a hook-shaped guide end B (16) at both ends; The fixed plate A (5) and the fixed plate B (6) are respectively arranged in the receiving cavities (10) and fixedly connected with the hinge shell A (1) and the hinge shell B (2); the fixed plate A (5) is provided with a guide arc groove (17) and a guide arc surface A (18), and the guide arc surface A (18) is provided with a limiting portion (19) at one end; the fixed plate B (6) is provided with a guide arc surface B (20), and one side of the guide arc surface B (20) is provided with a receiving groove (21) corresponding in shape to the guide end B (16); The guide column (7) is fixed at one end in the guide column hole (13) on the connecting plate (3), and is sleeved at the other end in the guide arc groove (17); The connecting shaft (9) has two, which are respectively arranged in the connecting shaft holes (12) on the connecting plate (3) and the hinge shell A (1) and the hinge shell B (2), so that the connecting plate (3) is movably connected with the hinge shell A (1) and the hinge shell B (2) at both ends.

2. The system door hinge of claim 1, wherein: The number of the fixed plate A (5), the fixed plate B (6) and the guide plate (4) is two, which are arranged at the upper and lower ends of the connecting plate (3).

3. System door hinge according to claim 1 or 2, characterized in that: The connecting shaft (9) is provided with a bearing (8) at both ends, and the bearing (8) is located between the connecting plate (3) and the hinge shell A (1) and the hinge shell B (2).

4. The system door hinge of claim 1 or 2, wherein: The fixed plate A (5), the fixed plate B (6), the hinge shell A (1) and the hinge shell B (2) are each provided with a screw hole (11), and the fixed plate A (5) and the fixed plate B (6) are fixedly connected with the hinge shell A (1) and the hinge shell B (2) through the screw holes (11) and screws.

5. The system door hinge of claim 1 or 2, wherein: The guide end A (15) is provided with an inclined surface, and the guide end B (16) is provided with a circular arc chamfer.

6. The system door hinge of claim 1 or 2, wherein: The hinge shell A (1) is provided with a guide column hole (13).

7. The system door hinge of claim 1 or 2, wherein: The connecting plate (3) is in a U-shaped structure.

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