Invisible hinge

By introducing rotating and adjusting components into the concealed hinge, the problem of fixed positions of the door frame and door leaf is solved, enabling large-angle rotation and position adjustment, thus improving the flexibility and coordination of the door.

CN223867830UActive Publication Date: 2026-02-03FO SHAN SHI YUE GUO XUAN KE JI YOU XIAN GONG SI
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Patent Information

Application Number
CN202520139759.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-02-03
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

In existing concealed hinges, the position between the door frame hinge and the door leaf hinge is fixed and cannot be adjusted, and the rotation angle is limited, which cannot meet different usage needs.

Method used

An invisible hinge was designed, comprising a rotating component and an adjusting component. The rotating component allows for large-angle rotation, while the adjusting component can adjust the position between the door frame and the door leaf. Flexible connection between the door frame and the door leaf is achieved by setting multiple rotating parts and connecting plates.

Benefits of technology

It enables flexible adjustment of the door frame and door leaf, allowing for large-angle rotation and distance adjustment, avoiding scratches and improving user comfort and compatibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a hinge, and particularly discloses an invisible hinge which comprises a door frame hinge and a door leaf hinge which are rotationally connected, first screw holes are formed in the upper end and the lower end of the door frame hinge, second screw holes are formed in the upper end and the lower end of the door leaf hinge, and a containing cavity is formed in the door frame hinge. The rotating part is arranged between the door frame hinge and the door leaf hinge, and the rotating part can be located in the containing cavity after rotating by a certain angle. The door leaf hinge comprises the rotating part, the rotating part is installed between the door frame hinge and the door leaf hinge, and the rotating part exists independently, so that the door frame hinge and the door leaf hinge can rotate at a large angle through the rotating part, and when the door leaf hinge is installed on the door frame and the door leaf, the door frame can rotate at a large angle. And different use requirements are met.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of door leaf connecting hinge, specifically relates to a invisible hinge. BACKGROUND

[0002] Hinge is a connecting part that connects door leaf on door frame, after connecting door leaf on door frame through hinge, door leaf can rotate around door frame.

[0003] Applicant found at least the following problems of invisible hinge during implementing invisible hinge, the position between door frame page and door leaf page is completely fixed and cannot be adjusted after installing door frame page and door leaf page on door frame and door leaf, therefore, the distance between door frame and door leaf is fixed and cannot be adjusted, cannot satisfy different requirements.

[0004] In view of the above problems of hinge, applicant applied the utility model with the name of "improved hinge" on January 5, 2024, then, applicant found that the improved hinge does not separately set up rotating part during implementing, therefore, the rotating angle of door frame page and door leaf page is limited, cannot satisfy the scene that door leaf page rotates at large angle. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems existing in prior art, the utility model aims at providing a invisible hinge.

[0006] The utility model employs the technical scheme that a invisible hinge, including door frame page and door leaf page, door frame page and door leaf page rotation connection, the upper and lower ends of door frame page are equipped with first screw hole, the upper and lower ends of door leaf page are equipped with second screw hole, still include rotating part, the accommodating cavity is formed in door frame page, and the rotating part is arranged between door frame page and door leaf page, after rotating part rotates a certain angle, rotating part can be located in accommodating cavity.

[0007] In some embodiments, the rotating part includes first rotating piece, second rotating piece and third rotating piece, one side of first rotating piece is rotationally connected with door frame page, the other side is rotationally connected with one side of second rotating piece, the other side of second rotating piece is connected with door leaf page, one side of third rotating piece is rotationally connected with door frame page, the other side is rotationally connected with the middle position of second rotating piece.

[0008] In some embodiments, the third rotating piece is in the shape of a bend, and the third rotating piece is located inside the first rotating piece and the second rotating piece.

[0009] In some embodiments, further including adjusting part, adjusting part can adjust the position between door frame page and door leaf page, to finally adjust the position between door frame and door leaf.

[0010] In some embodiments, the other side of the second rotating member is provided with a connecting plate, the second rotating member is connected with the door leaf through the connecting plate, and the adjusting component is arranged on the connecting plate and the door leaf.

[0011] In some embodiments, the adjusting component comprises connecting screws and positioning screws, the connecting screws are capable of connecting the connecting plate and the door leaf, and the positioning screws are capable of abutting against the door frame and the door leaf after the connecting screws and the positioning screws are rotated.

[0012] In some embodiments, the connecting screws are two, the positioning screws are two, a groove is formed on the door leaf, one end of the positioning screws passes through the connecting plate and abuts against the groove of the door leaf, and the adjusting component further comprises a connecting piece, one end of the two connecting screws passes through the connecting plate and the door leaf and is connected with the connecting piece.

[0013] In some embodiments, the adjusting component further comprises a first cover plate, a second cover plate and a third cover plate, the first cover plate covers the first screw hole, the second cover plate covers the second screw hole, and the third cover plate is arranged on the back of the door leaf.

[0014] The utility model discloses the beneficial effects are: the utility model discloses including rotating component, rotating component installs between door frame and door leaf, and rotating component is the existence of single, therefore, through rotating component can make door frame and door leaf realize big -angle rotation, when installing the utility model discloses in door frame and door leaf, door frame can big -angle rotation, satisfies different use demand.

[0015] In the utility model, the adjusting component is arranged between the door frame and the door leaf, the adjusting component can adjust the position between the door frame and the door leaf, and finally adjust the position between the door frame and the door leaf. Therefore, the position between the door frame and the door leaf can be adjusted in a small range according to the actual situation. The position here refers to the distance, that is, the size of the door gap can be adjusted. The door frame and the door leaf, the door frame and the door leaf can be prevented from scratching each other, the door leaf can be opened and closed more smoothly, and the door frame and the door leaf can be used more cooperatively. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the invisible hinge of one embodiment of the utility model;

[0017] Figure 2 It is a structure schematic view of the invisible hinge of one embodiment of the utility model; Figure 1 It is another direction structure schematic view of the invisible hinge shown in the figure;

[0018] Figure 3 It is a structure schematic view of the invisible hinge shown in the figure after the first cover plate, the second cover plate and the third cover plate are covered; Figure 1

[0019] ​Figure 4 Fig. 2 is a schematic view showing a part of the structure of the invisible hinge shown in Fig. 1; Figure 1 Fig. 3 is a schematic view showing another part of the structure of the invisible hinge shown in Fig. 1;

[0020] Figure 5 Fig. 4 is a schematic view showing a part of the structure of the invisible hinge shown in Fig. 1; Figure 1 Fig. 5 is a schematic view showing another part of the structure of the invisible hinge shown in Fig. 1;

[0021] Figure 6 Fig. 6 is a schematic view showing a part of the structure of the invisible hinge shown in Fig. 1; Figure 1 Fig. 7 is a schematic view showing another part of the structure of the invisible hinge shown in Fig. 1;

[0022] Figure 7 Fig. 8 is a schematic view showing a part of the structure of the invisible hinge shown in Fig. 1; Figure 1 Fig. 9 is a schematic view showing another part of the structure of the invisible hinge shown in Fig. 1;

[0023] In the drawings, 1 is a door frame leaf; 11 is a first screw hole; 12 is a drilled hole; 2 is a door leaf; 21 is a second screw hole; 22 is a groove; 3 is an adjusting component; 31 is a connecting screw; 32 is a positioning screw; 33 is a connecting plate; 4 is a rotating component; 41 is a first rotating piece; 42 is a second rotating piece; 421 is a connecting plate; 43 is a third rotating piece; 5 is a first cover plate; 6 is a second cover plate; 7 is a third cover plate; 8 is a profile. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0026] Figures 1-7 The structure of the invisible hinge according to an embodiment of the present application is schematically shown.

[0027] As Figures 1-7As shown, an invisible hinge includes a door frame hinge 1, a door leaf hinge 2, and a rotating component 4. The door frame hinge 1 and the door leaf hinge 2 are rotatably connected. The upper and lower ends of the door frame hinge 1 are integrally formed with first screw holes 11, and the upper and lower ends of the door leaf hinge 2 are integrally formed with second screw holes 21. A receiving cavity is formed on the door frame hinge 1. As can be seen from the figure, the rotating component 4 is installed between the door frame hinge 1 and the door leaf hinge 2. After the rotating component 4 rotates at a certain angle, it will rotate into the receiving cavity. The rotating component 4 can be hidden in the door frame hinge 1. Since this utility model has a separate rotating component 4, the angle of rotation between the door frame hinge 1 and the door leaf hinge 2 can be large. When the door frame hinge 1 is installed on the door frame and the door leaf hinge 2 is installed on the door leaf, the rotation angle of the door leaf can also be large, which can solve the problem that existing invisible hinges cannot rotate at large angles (e.g., more than 120°).

[0028] The structure of rotating component 4 is described in detail below: Figure 4 As shown, in this embodiment, the rotating component 4 includes a first rotating component 41, a second rotating component 42, and a third rotating component 43. The left side of the first rotating component 41 is rotatably connected to the door frame 1 (e.g., through a rotating shaft), and the right side of the first rotating component 41 is rotatably connected to the left side of the second rotating component 42 (e.g., through a rotating shaft). The right side of the second rotating component 42 is connected to the door leaf 2. The left side of the third rotating component 43 is rotatably connected to the door frame 1, and the right side is rotatably connected to the middle position of the second rotating component 42. Through the above-mentioned rotating component 4, the door frame 1 and the door leaf 2 can be rotated at large angles. Furthermore, by setting three rotating components, the door leaf 2 can rotate more smoothly around the door frame 1.

[0029] like Figure 4 and Figure 5 As shown, in this embodiment, the third rotating member 43 is bent and located inside the first rotating member 41. The term "inner side" here corresponds to... Figure 4 As shown on the lower side, the rotation of the third rotating member 43 will not hinder the rotation of the first rotating member 41 and the second rotating member 42.

[0030] In order to adjust the door frame leaf 1 and the door leaf 2, this utility model also includes an adjustment component 3. The adjustment component 3 can adjust the position between the door frame leaf 1 and the door leaf 2. After this utility model is installed on the door frame and the door leaf, the position between the door frame and the door leaf can be adjusted by adjusting the adjustment component 3, adjusting the distance between the door frame and the door leaf, and preventing the door leaf from rubbing against the door frame when it rotates.

[0031] like Figure 3As shown in the embodiment, a connecting plate 421 can be arranged at the right side of the second rotating member 42, the connecting plate 421 is fixed with the second rotating member 42 and the second rotating member 42 and the connecting plate 421 cannot rotate with each other, the second rotating member 42 is connected with the door leaf 2 through the connecting plate 421, the adjusting component 3 is arranged on the connecting plate 421 and the door leaf 2, the adjusting component 3 in the embodiment can adjust the distance between the connecting plate 421 and the door leaf 2 (the adjusted distance is very small, for example, can be 2-5mm), since the connecting plate 421 is connected with the second rotating member 42 and the second rotating member 42 is connected with the door frame 1 through the first rotating member 41 and the third rotating member 43, therefore, the distance between the door frame 1 and the door leaf 2 can be finally adjusted.

[0032] The structure of the adjusting component 3 will be described in detail below, as shown in the figure, Figures 3-6 As shown in the embodiment, the adjusting component 3 comprises a connecting screw 31 and a positioning screw 32, the connecting screw 31 can connect the connecting plate 421 and the door leaf 2, and after the connecting screw 31 is rotated, the positioning screw 32 is rotated, the positioning screw 32 can abut against the door leaf 2, therefore, the position between the door frame 1 and the door leaf 2 can be finally adjusted through the connecting screw 31 and the positioning screw 32.

[0033] In the embodiment, the connecting screw 31 has two, the positioning screw 32 has two, the door leaf 2 is integrally formed with a groove 22, one end of the positioning screw 32 passes through the connecting plate 421 and abuts against the groove 22 of the door leaf 2, the adjusting component 3 further comprises a connecting piece 33, one end of the connecting screw 31 passes through the door leaf 2, the connecting plate 421 and the door leaf 2 and is connected with the connecting piece 33. The specific adjusting mode is as follows: when the distance between the door leaf 2 and the connecting plate 421 is to be increased, the connecting screw 31 is rotated, so that the connecting screw 31 is loosened, at this time, the positioning screw 32 is separated from the groove 22, therefore, the positioning screw 32 is rotated, the positioning screw 32 is rotated towards the groove 22, and the positioning screw 32 is again abutted against the groove 22; conversely, when the distance between the door leaf 2 and the connecting plate 421 is to be reduced, the positioning screw 32 is rotated, at this time, the positioning screw 32 is separated from the groove 22, then the connecting screw 31 is tightened, the connecting plate 421 is close to the door leaf 2, and the positioning screw 32 is again abutted against the groove 22.

[0034] As shown in the figure, Figure 1 and Figure 2 The utility model further comprises a first cover plate 5, a second cover plate 6 and a third cover plate 7, the first cover plate 5 can cover the first screw hole 11, the second cover plate 6 can cover the second screw hole 21, and the third cover plate 7 can cover the back of the door leaf 2. Through the first cover plate 5, the second cover plate 6 and the third cover plate 7, the screws in each area can be hidden, which is more beautiful in use, in addition, as shown in the figure, Figure 7As shown, the utility model can be installed on the door frame and the door leaf in the shown mode. Figure 7 As shown, the utility model can be installed on the door frame and the door leaf in the shown mode.

[0035] Finally, for the convenience of processing, the door frame page 1 can be integrally formed with a drill hole 12, and the drill hole 12 is formed by drilling with a drill bit.

[0036] The utility model discloses a rotating part, and the rotating part 4 is arranged between the door frame page 1 and the door leaf page 2, and the rotating part is separately arranged, so that the door frame page 1 and the door leaf page 2 can be rotated at a large angle through the rotating part 4.

[0037] In the utility model, the adjusting part is arranged between the door frame page and the door leaf page, and the adjusting part can adjust the position between the door frame page and the door leaf page, and finally adjust the position between the door frame and the door leaf.

[0038] The utility model is not limited to the optional implementation mode, and anyone can derive other various forms of products under the inspiration of the utility model, but no matter any change in shape or structure, any technical scheme falling within the scope defined by the claims of the utility model falls within the protection scope of the utility model.

Claims

1. A concealed hinge, comprising a door frame hinge (1) and a door leaf hinge (2), wherein the door frame hinge (1) and the door leaf hinge (2) are rotatably connected, wherein the upper and lower ends of the door frame hinge (1) are provided with first screw holes (11), and the upper and lower ends of the door leaf hinge (2) are provided with second screw holes (21), characterized in that: It also includes a rotating component (4), a receiving cavity is formed on the door frame leaf (1), the rotating component (4) is disposed between the door frame leaf (1) and the door leaf (2), and after the rotating component (4) rotates at a certain angle, the rotating component (4) can be located in the receiving cavity.

2. The invisible hinge according to claim 1, characterized in that: The rotating component (4) includes a first rotating component (41), a second rotating component (42), and a third rotating component (43). One side of the first rotating component (41) is rotatably connected to the door frame leaf (1), and the other side is rotatably connected to one side of the second rotating component (42). The other side of the second rotating component (42) is connected to the door leaf (2). One side of the third rotating component (43) is rotatably connected to the door frame leaf (1), and the other side is rotatably connected to the middle position of the second rotating component (42).

3. The invisible hinge according to claim 2, characterized in that: The third rotating member (43) is bent and is located inside the first rotating member (41) and the second rotating member (42).

4. The invisible hinge according to claim 3, characterized in that: It also includes an adjustment component (3) that can adjust the position between the door frame leaf (1) and the door leaf leaf (2) to ultimately adjust the position between the door frame and the door leaf.

5. The invisible hinge according to claim 4, characterized in that: A connecting plate (421) is provided on the other side of the second rotating member (42). The second rotating member (42) is connected to the door leaf (2) through the connecting plate (421). The adjusting component (3) is provided on the connecting plate (421) and the door leaf (2).

6. The invisible hinge according to claim 5, characterized in that: The adjusting component (3) includes a connecting screw (31) and a positioning screw (32). The connecting screw (31) can connect the connecting plate (421) and the door leaf (2). After rotating the connecting screw (31) and the positioning screw (32), the positioning screw (32) can abut against the door frame leaf (1) and the door leaf (2). The connecting screw (31) and the positioning screw (32) can adjust the position between the connecting plate (421) and the door leaf (2).

7. The invisible hinge according to claim 6, characterized in that: There are two connecting screws (31) and two positioning screws (32). A groove (22) is formed on the door leaf (2). One end of the positioning screw (32) passes through the connecting plate (421) and abuts against the groove (22) of the door leaf (2). The adjusting component (3) also includes a connecting piece (33). One end of the two connecting screws (31) passes through the connecting plate (421) and the door leaf (2) and is connected to the connecting piece (33).

8. The invisible hinge according to any one of claims 1 to 7, characterized in that: It also includes a first cover plate (5), a second cover plate (6) and a third cover plate (7). When the first cover plate (5) covers the first screw hole (11), the second cover plate (6) covers the second screw hole (21), and the third cover plate (7) is located on the back of the door leaf (2).