Three-dimensional side hidden hinge

The three-dimensional side-concealed hinge design solves the problem of inconvenient installation of existing concealed hinges, enabling individual installation and multi-directional adjustment on the door leaf, thus improving installation convenience and flexibility.

CN224078922UActive Publication Date: 2026-04-03ZHAOQING GAOYAO SHENGHUI HARDWARE PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing concealed hinges are not flexible enough to install, requiring deep holes to be drilled in the door frame and door leaf, making installation troublesome and inconvenient overall.

Method used

It adopts a three-dimensional side-concealed hinge design, including a door leaf base and a door frame connecting plate. The door leaf base has a detachable adjustable component that can be adjusted along the length direction. The door hinge base is connected to the door frame connecting plate through a connecting rod arm to achieve multi-directional adjustment.

Benefits of technology

It improves the convenience and flexibility of hinge installation, allowing for individual installation on the door leaf, detachable installation of the door frame connecting plate, and adjustable parts to adjust the door leaf height and spacing, making it suitable for various installation environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hinges, and particularly discloses a three-dimensional side-hidden hinge which comprises a leaf door seat and a door frame connecting plate, a cavity is formed in the leaf door seat, an adjusting piece is detachably installed in the cavity and can move in the length direction of the leaf door seat in an adjusting mode, a liftable door hinge seat is installed on the adjusting piece, and the door frame connecting plate is installed on the door hinge seat. The door hinge base is connected with a door frame connecting plate through a connecting rod arm, and second strip-shaped connecting holes are formed in the two ends of the door frame connecting plate. According to the three-dimensional side-hidden hinge, the leaf door seat and the door frame connecting plate can be assembled and fixed after being installed, so that the hinge is more flexible to install and more suitable for various installation environments, when the adjusting piece is adjusted and moved in a reciprocating mode in the length direction of the leaf door seat, the height position of a door leaf can be adjusted, and the adjustment effect is better. After the height of the door hinge base is adjusted on the adjusting piece, the distance between the door leaf and the door frame can be adjusted, the front and back of the door leaf can be adjusted through the second strip-shaped connecting hole, and therefore the whole hinge can be adjusted in multiple directions.
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Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and more specifically, to a three-dimensional side-concealed invisible hinge. Background Technology

[0002] Currently, most concealed hinges on the market adopt a symmetrical structure design. Since each mounting base is relatively thick, deep holes need to be drilled in the door frame and door leaf for installation. This installation method is quite troublesome. In addition, these concealed hinge products are all one piece. During installation, one side of the entire hinge product is installed on the door frame / door leaf, and then the next step of door leaf installation is carried out. The hinge product itself cannot be disassembled and fixed on-site before installation, making the hinge installation less flexible. Utility Model Content

[0003] In order to overcome the defects of the existing technology, this utility model provides a three-dimensional side-concealed invisible hinge to solve the above problems.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a three-dimensional side-concealed invisible hinge, including a door leaf seat and a door frame connecting plate. The door leaf seat is provided with a cavity, and an adjusting component is detachably installed in the cavity. The adjusting component can be adjusted and moved along the length direction of the door leaf seat. A liftable door hinge seat is installed on the adjusting component. The door hinge seat is connected to the door frame connecting plate through a connecting rod arm. A second strip-shaped connecting hole is opened at both ends of the door frame connecting plate.

[0005] In the aforementioned three-dimensional side-concealing concealed hinge, the fan door base has fixed mounting holes at both ends, one side of the cavity is open, and both ends of the cavity are provided with bosses. A connecting platform is provided on the upper surface of the boss near the opening. An adjustment bracket fixing hole is provided on the connecting platform. The adjustment component is mounted on the boss and connected to the adjustment bracket fixing hole.

[0006] In the aforementioned three-dimensional side-concealed concealed hinge, the adjusting component includes an adjusting frame body. A hinge base connecting platform is provided on the outer surfaces of both ends of the adjusting frame body. The lower end of the hinge base connecting platform is mounted on a boss. The hinge base is vertically mounted on the hinge base connecting platform. A movable adjusting platform corresponding to the connecting platform is provided on one side of the hinge base connecting platform. A first strip-shaped connecting hole is provided on the movable adjusting platform. The first strip-shaped connecting hole is located along the length direction of the adjusting frame body. The adjusting frame fixing hole is connected to the first strip-shaped connecting hole by a tightening bolt.

[0007] In the aforementioned three-dimensional side-concealed hinge, the upper surface of the connecting platform is provided with multiple ribs, and a limiting gap is formed between two adjacent ribs. The lower surface of the movable adjustment platform is provided with a retaining rib that can be accommodated within the limiting gap.

[0008] In the aforementioned three-dimensional side-concealed hinge, the distance between the two end bosses is greater than the length of the adjustment frame body.

[0009] In the aforementioned three-dimensional side-concealed concealed hinge, mounting ears are provided at both ends of the hinge base, a first mounting hole is provided on the mounting ear, a second mounting hole is provided on the hinge base connecting platform, the hinge base is located between the two hinge base connecting platforms, and the mounting ears are mounted on the hinge base connecting platform. The first mounting hole and the second mounting hole are connected by connecting bolts.

[0010] The beneficial effects of this utility model are that the door leaf base can be installed by drilling holes in the door leaf, while the door frame connecting plate is plate-shaped and can be locked onto the door frame directly without needing to drill deeper holes in the door frame, thus improving the convenience of hinge installation. Moreover, the door frame connecting plate can be separated from the door leaf base by adjusting the adjusting piece, so that the door leaf base and the door frame connecting plate can be installed separately and then assembled and fixed, making the hinge installation more flexible and suitable for various installation environments. When the adjusting piece moves back and forth along the length of the door leaf base, the height position of the door leaf can be adjusted. After the door hinge base is adjusted in height by adjusting the adjusting piece, the distance between the door leaf and the door frame can be adjusted. The second strip-shaped connecting hole can adjust the front and back of the door leaf, so that the entire hinge can be adjusted in multiple directions. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the hidden hinge in this embodiment.

[0012] Figure 2 This is an exploded structural diagram of the three-dimensional side-concealed invisible hinge in this embodiment.

[0013] Figure 3 This is a three-dimensional structural diagram of the fan door seat in this embodiment.

[0014] Figure 4 This is a three-dimensional structural diagram of the adjusting component in this embodiment.

[0015] Figure 5 This is a partial structural diagram of the adjusting component.

[0016] Figure 6 This is a three-dimensional structural diagram of the door hinge seat, connecting arm, and door frame connecting plate.

[0017] In the diagram: 1. Door seat, 2. Adjusting component, 3. Door hinge seat, 4. Connecting rod arm, 5. Door frame connecting plate, 6. Fixed mounting hole, 7. Cavity, 8. Boss, 9. Connecting platform, 10. Adjusting bracket fixing hole, 11. Protruding rib, 12. Door hinge seat connecting platform, 13. Second mounting hole, 14. Moving adjusting platform, 15. First strip connecting hole, 16. Locking rib, 17. Tightening bolt, 18. Mounting ear, 19. Connecting bolt, 20. Second strip connecting hole. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] Combination Figures 1 to 6 The illustrated three-dimensional concealed hinge includes a door leaf base 1 and a door frame connecting plate 5. The door leaf base 1 has a cavity 7, within which an adjusting member 2 is detachably installed. The adjusting member 2 can be adjusted and moved along the length of the door leaf base 1. A liftable door hinge seat 3 is mounted on the adjusting member 2. The door hinge seat 3 is connected to the door frame connecting plate 5 via a connecting arm 4. Both ends of the door frame connecting plate 5 have second strip-shaped connecting holes 20. In this embodiment, the door leaf base 1 can be installed by drilling holes in the door leaf, while the door frame connecting plate 5 is plate-shaped and only needs to be locked onto the door frame directly, without requiring additional drilling on the door frame. The deeper holes improve the ease of hinge installation, and the door frame connecting plate 5 can be separated from the door leaf base 1 by adjusting the piece 2, so that the door leaf base 1 and the door frame connecting plate 5 can be installed separately and then assembled and fixed, making the hinge installation more flexible and suitable for various installation environments. When the adjusting piece 2 moves back and forth along the length of the door leaf base 1, the height of the door leaf can be adjusted. After the door hinge base 3 is adjusted in height on the adjusting piece 2, the distance between the door leaf and the door frame can be adjusted. The second strip-shaped connecting hole 20 can adjust the front and back of the door leaf, so that the entire hinge can be adjusted in multiple directions.

[0020] In this embodiment, the fan door seat 1 has fixed mounting holes 6 at both ends, and one side of the cavity 7 is open to allow the connecting rod arm 4 to swing. Both ends of the cavity 7 have bosses 8. A connecting platform 9 is provided on the upper surface of the boss 8 near the opening. An adjustment bracket fixing hole 10 is provided on the connecting platform 9. The adjustment component 2 is mounted on the boss 8 and connected to the adjustment bracket fixing hole 10. This allows the adjustment component 2 to be fixedly installed through the adjustment bracket fixing hole 10, making it easy to install and remove.

[0021] In this embodiment, the adjusting component 2 includes an adjusting frame body. Hinge base connecting platforms 12 are provided on the outer surfaces of both ends of the adjusting frame body. The lower end of the hinge base connecting platform 12 is mounted on the boss 8. The hinge 3 is vertically mounted on the hinge base connecting platform 12. A movable adjusting platform 14 corresponding to the connecting platform 9 is provided on one side of the hinge base connecting platform 12. A first strip-shaped connecting hole 15 is provided on the movable adjusting platform 14, which is located along the length of the adjusting frame body. The adjusting frame fixing hole 10 is connected to the first strip-shaped connecting hole 15 by a tightening bolt 17. By tightening or loosening the tightening bolt 17, the first strip-shaped connecting hole 15 can be moved and adjusted. During the adjustment and movement of the adjusting frame body along the length of the door seat 1, the hinge base connecting platform 12 moves in the space between the inner wall of the cavity 7 and the protruding connecting platform 9, serving a guiding function and improving the stability of the movement.

[0022] In this embodiment, the upper surface of the connecting platform 9 is provided with multiple protruding ribs 11, and a limiting gap is formed between two adjacent protruding ribs 11. The lower surface of the movable adjustment platform 14 is provided with a retaining rib 16 that can be accommodated in the limiting gap. By retaining the retaining rib 16 in the limiting gap, the adjustment frame body becomes more stable after the tightening bolt 17 is tightened.

[0023] It is worth noting that the distance between the two end bosses 8 in this embodiment is greater than the length of the adjustment frame body, which allows the adjustment frame body to be adjusted and moved along the length direction of the door seat 1.

[0024] In this embodiment, the door hinge base 3 is provided with mounting ears 18 at both ends. The mounting ears 18 are provided with first mounting holes, and the door hinge base connecting platform 12 is provided with second mounting holes 13. The door hinge base 3 is located between the two door hinge base connecting platforms 12, and the mounting ears 18 are mounted on the hinge base connecting platform 12. The first mounting holes and the second mounting holes 13 are connected by connecting bolts 19. This facilitates the fixed installation of the door hinge base 3 on the door hinge base connecting platform 12. The connecting bolts 19 are provided with retaining rings, and the mounting ears 18 are engaged between the nut and the retaining rings. When the connecting bolts 19 are rotated, the connecting bolts 19 move up and down in the second mounting holes 13, thereby driving the door hinge base 3 to move up and down.

[0025] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A three-dimensional side-concealing concealed hinge, comprising a door leaf base (1) and a door frame connecting plate (5), characterized in that, The door seat (1) is provided with a cavity (7), and an adjusting component (2) is detachably installed in the cavity (7). The adjusting component (2) can be adjusted and moved along the length direction of the door seat (1). A liftable door hinge seat (3) is installed on the adjusting component (2). The door hinge seat (3) is connected to a door frame connecting plate (5) through a connecting rod arm (4). Both ends of the door frame connecting plate (5) are provided with second strip-shaped connecting holes (20).

2. The three-dimensional side-concealed invisible hinge according to claim 1, characterized in that, The fan door seat (1) has fixed mounting holes (6) at both ends. One side of the cavity (7) is open. Both ends of the cavity (7) are provided with bosses (8). A connecting platform (9) is provided on the upper surface of the boss (8) near the opening. An adjustment bracket fixing hole (10) is provided on the connecting platform (9). The adjustment component (2) is mounted on the boss (8) and is connected to the adjustment bracket fixing hole (10).

3. A three-dimensional side-concealing invisible hinge according to claim 2, characterized in that, The adjusting component (2) includes an adjusting frame body. A hinge seat connecting platform (12) is provided on the outer side of both ends of the adjusting frame body. The lower end of the hinge seat connecting platform (12) is mounted on the boss (8). The hinge seat (3) is mounted on the hinge seat connecting platform (12) in a liftable manner. A movable adjusting platform (14) corresponding to the connecting platform (9) is provided on one side of the hinge seat connecting platform (12). A first strip-shaped connecting hole (15) is provided on the movable adjusting platform (14). The first strip-shaped connecting hole (15) is provided along the length direction of the adjusting frame body. The adjusting frame fixing hole (10) is connected to the first strip-shaped connecting hole (15) by a tightening bolt (17).

4. A three-dimensional side-concealing invisible hinge according to claim 3, characterized in that, The upper surface of the connecting platform (9) is provided with multiple ribs (11), and a limiting gap is formed between two adjacent ribs (11). The lower surface of the movable adjustment platform (14) is provided with a retaining rib (16) that can be accommodated in the limiting gap.

5. A three-dimensional side-concealed invisible hinge according to claim 3, characterized in that, The distance between the two protrusions (8) is greater than the length of the adjustment frame body.

6. A three-dimensional side-concealed invisible hinge according to claim 3, characterized in that, The hinge base (3) is provided with mounting ears (18) at both ends. The mounting ears (18) are provided with first mounting holes. The hinge base connecting platform (12) is provided with second mounting holes (13). The hinge base (3) is located between the hinge base connecting platforms (12) at both ends. The mounting ears (18) are mounted on the hinge base connecting platform (12). The first mounting holes and the second mounting holes (13) are connected by connecting bolts (19).