Hidden gate hinge

By using a concealed design and an arc-shaped rotating connector, the problems of unsightly door hinges and insufficient damping have been solved, improving the overall aesthetics and user experience.

CN224200449UActive Publication Date: 2026-05-05ZHONGSHAN DIANG METAL PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN DIANG METAL PRODUCTS CO LTD
Filing Date
2025-07-09
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The existing door hinge structure has gaps that result in an unsightly appearance and insufficient damping, leading to a reduced user experience after long-term use.

Method used

The design is concealed, with two arc-shaped rotating connectors hidden by the first hinge seat, improving both aesthetics and damping feel.

Benefits of technology

This improved the aesthetics and damping feel of the door hinges, enhancing the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hidden type large door hinge which comprises a first door hinge seat and a second door hinge seat. The first door hinge seat and the second door hinge seat are rotationally connected, a first door hinge seat connecting groove is formed in the top of the first door hinge seat, first door hinge seat connecting bosses are arranged on the two sides of the first door hinge seat connecting groove, and the fixed connecting pieces are arranged on the first door hinge seat connecting bosses and fixedly connected with the first door hinge seat. One side of the fixed connecting piece extends into the first door hinge base connecting groove, and the rear side of the second door hinge base is rotationally connected with the fixed connecting piece through a connecting rod. The first door hinge base is connected with the door frame through screws, the second door hinge base is connected with the door through screws, and the second door hinge base can be hidden in the first door hinge base connecting groove, so that the overall attractiveness degree is improved.
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Description

Technical Field

[0001] This utility model relates to the field of door hinges, and in particular to a concealed door hinge. Background Technology

[0002] Existing door hinges have relatively simple structures, mainly consisting of connecting parts on both sides and a central pivot. Gaps between these connecting parts make the outer tube look less aesthetically pleasing. Concealed door hinges, however, can significantly improve the appearance of both the door and the hinge. Furthermore, the damping feel of the hinge during rotation is a key factor for users to judge its quality. Current designs commonly use various bearings and silicone rings to enhance the damping feel, but this inevitably reduces the user experience over time. Therefore, a concealed door hinge with a simpler structure, better damping feel, and a more attractive appearance is needed. Utility Model Content

[0003] The main purpose of this invention is to provide a concealed door hinge that has a simple structure, better damping feel, and a better appearance.

[0004] This utility model proposes a concealed door hinge, including a first door hinge seat and a second door hinge seat;

[0005] The first door hinge and the second door hinge are rotatably connected. The top of the first door hinge is provided with a first door hinge connecting groove. The two sides of the first door hinge connecting groove are provided with first door hinge connecting bosses. A fixed connector is provided on the first door hinge connecting bosses and fixedly connected to the first door hinge. One side of the fixed connector extends into the first door hinge connecting groove. The rear side of the second door hinge is rotatably connected to the fixed connector through a connecting rod.

[0006] The first door hinge is connected to the door frame by screws, and the second door hinge is connected to the door screws. The second door hinge can be hidden in the connecting groove of the first door hinge, thereby improving the overall aesthetics.

[0007] Preferably, the top of the first door hinge base is provided with a plurality of first door hinge base connection holes, and the first door hinge base and the door frame can be fixedly connected by screws.

[0008] Preferably, it also includes two arc-shaped rotating connectors;

[0009] The second door hinge includes a second door hinge body and a rear connector, wherein the rear connector is disposed on the rear side of the second door hinge and is fixedly connected to the second door hinge body;

[0010] One end of each of the two rotating connectors is rotatably connected to the fixed connector via the connecting rod, and the other end of each of the two rotating connectors is rotatably connected to the rear connector via the connecting rod, thereby making the second door hinge seat rotatably connected to the first door hinge seat via the rotating connectors;

[0011] By using two rotating connectors, the feel during rotation and the user experience can be improved.

[0012] Preferably, the top of the second door hinge body is provided with a plurality of second door hinge connection holes, and the second door hinge and the door can be fixedly connected by screws.

[0013] Preferably, multiple connecting slots are provided at the position corresponding to the connecting hole of the first door hinge on the bottom of the first door hinge base. By providing the connecting slots, the stability of the first door hinge base and the door when connected can be increased.

[0014] The beneficial effects of this concealed door hinge are as follows:

[0015] 1. By concealing the first door hinge seat within the first door hinge seat connecting groove, the aesthetics of the door hinge can be effectively improved.

[0016] 2. By setting two arc-shaped rotating connectors, compared with a single rotating connector, the damping of rotation can be effectively improved, thereby enhancing the user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connection structure between the first hinge seat and the second hinge seat of the concealed door hinge of this utility model.

[0018] Figure 2 This is a front view of the first hinge seat of the concealed door hinge of this utility model;

[0019] Figure 3 This is a top view of the first hinge seat of the concealed door hinge of this utility model;

[0020] Figure 4 This is a partial structural schematic diagram of the first hinge seat of the concealed door hinge of this utility model from a bottom view.

[0021] Figure 5 This is a schematic diagram of the structure of the second hinge seat body of the concealed door hinge of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the concealed door hinge cover of this utility model;

[0023] The following are the labels in the diagram: 1. First door hinge seat; 2. Second door hinge seat; 3. Cover; 4. First rotating connector; 5. Second rotating connector; 6. Connecting rod; 11. First door hinge seat connecting groove; 12. First door hinge seat connecting boss; 13. Fixed connector; 14. First door hinge seat connecting hole; 15. Snap-fit ​​groove; 16. Connecting through groove; 21. Second door hinge seat body; 22. Rear connector; 31. Connecting clip; 211. Second door hinge seat connecting hole.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0026] Reference Figures 1 to 6 An embodiment of the concealed door hinge of this utility model is proposed:

[0027] A concealed door hinge includes a first hinge seat 1, a second hinge seat 2, two arc-shaped rotating connectors, and a cover 3.

[0028] The top of the first door hinge 1 is provided with a first door hinge connecting groove 11, and the two sides of the first door hinge connecting groove 11 are provided with first door hinge connecting bosses 12. The fixing connector 13 is set on the first door hinge connecting bosses 12 and is fixedly connected to the first door hinge 1 by screws. One side of the fixing connector 13 extends into the first door hinge connecting groove 11. The fixing connector 1 is provided with two fixing connector connecting holes of different heights. The top of the first door hinge 1 on both sides of the first door hinge connecting groove 11 is provided with multiple first door hinge connecting holes 14, which can be fixedly connected to the door frame by screws. The bottom of the first door hinge 1 is provided with multiple connecting through grooves 16 at the positions corresponding to the first door hinge connecting holes 14. The connection through grooves 16 can increase the stability of the first door hinge 1 when connected to the door.

[0029] The first door hinge 1 has snap-fit ​​grooves 15 on both sides of its top, and the cover 3 has a connecting block 3 at its bottom. By cooperating with the connecting block 31 and the snap-fit ​​grooves 15, the cover 3 can be snapped onto the first door hinge 1, thereby covering the first door hinge connection hole 14 and improving the aesthetics of the first door hinge 1 when connected to the door.

[0030] The second hinge base 2 includes a second hinge base body 21 and a rear connector 22. The rear connector 22 is located on the rear side of the second hinge base 21 and is fixedly connected to the second hinge base body 21. The rear connector 22 has two rear connector connection holes, one at the front and one at the rear. The rotating connectors include a first rotating connector 4 and a second rotating connector 5. One end of the first rotating connector 4 is connected to the front rear connector connection hole via a connecting rod 6, and the rear end is connected to the upper fixed connector connection hole via a connecting rod 6. One end of the second rotating connector 5 is connected to the rear rear connector connection hole via a connecting rod 6, and the rear end is connected to the lower rear connector connection hole via a connecting rod 6. Thus, the second hinge base 2 is rotatably connected to the first hinge base 1 via the first rotating connector 5 and the second rotating connector 6. Using two first rotating connectors 5 and two rotating connectors 6 improves the feel during rotation and the user experience. The top of the second door hinge body 21 is provided with multiple second door hinge connection holes 211, which can be fixedly connected to the door by screw connection.

[0031] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A concealed door hinge, characterized in that, Including the first door hinge seat and the second door hinge seat; The first door hinge and the second door hinge are rotatably connected. The top of the first door hinge is provided with a first door hinge connecting groove. The two sides of the first door hinge connecting groove are provided with first door hinge connecting bosses. A fixed connector is provided on the first door hinge connecting bosses and fixedly connected to the first door hinge. One side of the fixed connector extends into the first door hinge connecting groove. The rear side of the second door hinge is rotatably connected to the fixed connector through a connecting rod. The first door hinge is connected to the door frame by screws, and the second door hinge is connected to the door screws. The second door hinge can be hidden in the connecting groove of the first door hinge, thereby improving the overall aesthetics.

2. The concealed door hinge according to claim 1, characterized in that, The first door hinge base has multiple first door hinge base connection holes on its top, and the first door hinge base and the door frame can be fixedly connected by screws.

3. The concealed door hinge according to claim 1, characterized in that, It also includes two arc-shaped rotating connectors; The second door hinge includes a second door hinge body and a rear connector, wherein the rear connector is disposed on the rear side of the second door hinge and is fixedly connected to the second door hinge body; One end of each of the two rotating connectors is rotatably connected to the fixed connector via the connecting rod, and the other end of each of the two rotating connectors is rotatably connected to the rear connector via the connecting rod, thereby making the second door hinge seat rotatably connected to the first door hinge seat via the rotating connectors; By using two rotating connectors, the feel during rotation and the user experience can be improved.

4. The concealed door hinge according to claim 3, characterized in that, The second door hinge body has multiple second door hinge connection holes on its top, which can be used to fix the second door hinge to the door by means of screws.

5. The concealed door hinge according to claim 2, characterized in that, Multiple connecting slots are provided at the position corresponding to the connecting hole of the first door hinge on the bottom of the first door hinge base. By providing the connecting slots, the stability of the first door hinge base and the door can be increased.