Adjustable mortise hinge

CN224742218UActive Publication Date: 2026-09-11ZHONGSHAN MINGSHUNXIANG METAL PROD CO LTD
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Patent Information

Application Number
CN202521725059.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-14
Publication Date
2026-09-11
Estimated Expiration
2035-08-14

AI Technical Summary

Technical Problem

然而,现有的暗铰链在安装后往往难以进行调节,当门或窗安装出现偏差时,需要重新拆卸安装,给安装和维护带来了很大的不便,因此,有必要设计一种可调节暗铰链

Benefits of technology

[0010] This utility model features a novel structural design. By incorporating up-down, left-right, and front-back adjustment screws, it enables adjustment of the concealed hinge in three directions, solving the problem of difficulty in adjusting existing concealed hinges after installation and improving installation flexibility and convenience. Simultaneously, the rational structural design ensures the hinge's stability and load-bearing capacity, making it suitable for installation on various doors, windows, and other furniture.

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Abstract

The utility model discloses an adjustable hidden hinge, including mutually hinged frame page subassembly and fan page subassembly, frame page subassembly includes frame page installation panel, frame page seat and pivot sleeve, frame page seat is fixedly located in frame page installation panel one side middle part position, pivot sleeve is rotatably connected in frame page seat one end away from frame page installation panel through pivot, fan page subassembly includes fan page mounting plate, connecting arm, connecting arm connecting plate and fan page bottom plate, fan page bottom plate is fixedly located in fan page mounting plate one side edge position, connecting arm connecting plate is connected on fan page bottom plate through left and right adjusting structure, one end of connecting arm is connected with connecting arm connecting plate through front and back adjusting structure, and the other end is fixedly connected with pivot sleeve, the utility model discloses novel structure design has solved the problem that the existing hidden hinge is difficult to adjust after installation, has improved the flexibility and convenience of installation.
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Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically an adjustable concealed hinge. Background Technology

[0002] Concealed hinges are common connecting components used in furniture such as doors and windows. They are installed inside the furniture and are aesthetically pleasing and hidden. However, existing concealed hinges are often difficult to adjust after installation. When the door or window is misaligned, it needs to be disassembled and reinstalled, which brings great inconvenience to installation and maintenance. Therefore, it is necessary to design an adjustable concealed hinge. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable concealed hinge to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an adjustable concealed hinge, comprising a frame assembly and a fan assembly that are hinged to each other; The frame assembly includes a frame mounting panel, a frame seat, and a rotating shaft sleeve. The frame seat is vertically fixed to the middle of one side of the frame mounting panel, and the rotating shaft sleeve is rotatably connected to the end of the frame seat away from the frame mounting panel via a rotating shaft. The fan blade assembly includes a fan blade mounting plate, a connecting arm, a connecting arm connecting plate, and a fan blade base plate. The fan blade base plate is vertically fixed to one side edge of the fan blade mounting plate. The connecting arm connecting plate is connected to the fan blade base plate through a left-right adjustment structure. One end of the connecting arm is connected to the connecting arm connecting plate through a front-back adjustment structure, and the other end is fixedly connected to the rotating shaft sleeve.

[0005] Preferably, the frame mounting panel has a plurality of first screw holes, which are symmetrically distributed at the upper and lower ends of the frame mounting panel; the frame mounting panel also has at least two oblong holes, which extend vertically and are located on both sides of the frame base, and upper and lower adjusting screws are fitted into the oblong holes, with the ends of the upper and lower adjusting screws threadedly connected to the frame base.

[0006] Preferably, the fan blade mounting plate has multiple second screw holes, which are evenly distributed around the fan blade mounting plate; the fan blade bottom plate has a horizontally extending strip hole, and the connecting arm plate has a third screw hole at the position corresponding to the strip hole, with the left and right adjustment screws passing through the strip hole and threadedly connected to the third screw hole.

[0007] Preferably, one end of the connecting arm is provided with a front-to-back adjustment hole, and a threaded post is provided on the connecting arm connecting plate at the position corresponding to the front-to-back adjustment hole. The front-to-back adjustment screw passes through the front-to-back adjustment hole and is threadedly connected to the threaded post. The front-to-back adjustment hole is an elongated hole extending along the length of the connecting arm.

[0008] Preferably, the rotating shaft sleeve has a hollow cylindrical structure, with one end vertically fixed to the end of the connecting arm away from the connecting arm connecting plate, and the other end sleeved on the rotating shaft; the end of the frame seat is provided with two oppositely arranged ear plates, the two ends of the rotating shaft are respectively fixed to the two ear plates, and the rotating shaft sleeve is located between the two ear plates and can rotate freely around the rotating shaft.

[0009] Preferably, a reinforcing rib is provided at the connection between the fan blade base plate and the fan blade mounting plate, and the reinforcing rib is fixedly connected to the fan blade base plate and the fan blade mounting plate respectively. Beneficial effects

[0010] This utility model features a novel structural design. By incorporating up-down, left-right, and front-back adjustment screws, it enables adjustment of the concealed hinge in three directions, solving the problem of difficulty in adjusting existing concealed hinges after installation and improving installation flexibility and convenience. Simultaneously, the rational structural design ensures the hinge's stability and load-bearing capacity, making it suitable for installation on various doors, windows, and other furniture.

[0011] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more apparent and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of the present utility model; Figure 3 This is a side view of the present invention; In the diagram: 1. Frame mounting panel; 2. Frame seat; 3. Rotary shaft sleeve; 4. Rotary shaft; 5. Fan blade mounting plate; 6. Connecting arm; 7. Connecting arm connecting plate; 8. Fan blade base plate; 9. First screw hole; 11. Second screw hole; 12. Third screw hole. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0014] 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 pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0015] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0016] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0017] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0019] Please see Figures 1-3This utility model discloses an adjustable concealed hinge, including a frame assembly and a fan assembly that are hinged to each other; The frame assembly includes a frame mounting panel 1, a frame base 2, and a rotating sleeve 3. The frame base 2 is vertically fixed to the middle of one side of the frame mounting panel 1, and the rotating sleeve 3 is rotatably connected to the end of the frame base 2 away from the frame mounting panel 1 via a rotating shaft 4. The fan blade assembly includes a fan blade mounting plate 5, a connecting arm 6, a connecting arm connecting plate 7, and a fan blade base plate 8. The fan blade base plate 8 is vertically fixed to one side edge of the fan blade mounting plate 5. The connecting arm connecting plate 7 is connected to the fan blade base plate 8 through a left-right adjustment structure. One end of the connecting arm 6 is connected to the connecting arm connecting plate 7 through a front-back adjustment structure, and the other end is fixedly connected to the rotating shaft sleeve 3.

[0020] In this utility model, the frame mounting panel 1 is provided with a plurality of first screw holes 9, which are symmetrically distributed at the upper and lower ends of the frame mounting panel 1; the frame mounting panel 1 is also provided with at least two oblong holes, which extend vertically and are located on both sides of the frame base, and upper and lower adjusting screws are fitted into the oblong holes, with the ends of the upper and lower adjusting screws threadedly connected to the frame base.

[0021] In this utility model, the fan blade mounting plate 5 is provided with a plurality of second screw holes 11, which are evenly distributed around the fan blade mounting plate 5; the fan blade base plate 8 is provided with a horizontally extending strip hole, and the connecting arm plate 7 is provided with a third screw hole 12 at the position corresponding to the strip hole. The left and right adjustment screws pass through the strip hole and are threadedly connected to the third screw hole.

[0022] In this utility model, a front and rear adjustment hole is provided at one end of the connecting arm 6, and a threaded post is provided on the connecting arm connecting plate 7 at the position corresponding to the front and rear adjustment hole. The front and rear adjustment screw passes through the front and rear adjustment hole and is threadedly connected to the threaded post. The front and rear adjustment hole is an elongated hole extending along the length direction of the connecting arm.

[0023] In this utility model, the rotating shaft sleeve 3 has a hollow cylindrical structure. One end of it is vertically fixed to the end of the connecting arm 6 away from the connecting arm connecting plate 7, and the other end is sleeved on the rotating shaft 4. The end of the frame seat 2 is provided with two oppositely arranged ear plates. The two ends of the rotating shaft 4 are respectively fixed to the two ear plates. The rotating shaft sleeve 3 is located between the two ear plates and can rotate freely around the rotating shaft.

[0024] In this utility model, a reinforcing rib is provided at the connection between the bottom plate 8 and the fan mounting plate 5, and the reinforcing rib is fixedly connected to the bottom plate 8 and the fan mounting plate 5 respectively.

[0025] Working principle: The frame assembly and the fan assembly are fixedly installed in the corresponding positions of doors, windows, and other furniture through the first screw hole on the frame mounting panel and the second screw hole on the fan mounting plate, respectively. To adjust the hinge's vertical position, loosen the vertical adjustment screw in the slotted hole on the frame mounting panel, adjust the frame mount to the appropriate vertical position, and then tighten the vertical adjustment screw. To adjust the hinge's horizontal position, loosen the horizontal adjustment screw in the strip-shaped hole on the fan base plate, move the connecting arm plate to the appropriate horizontal position, and then tighten the horizontal adjustment screw. To adjust the hinge's front-back position, loosen the front-back adjustment screw in the front-back adjustment hole on the connecting arm, adjust the relative position of the connecting arm and the connecting arm plate to the appropriate front-back position, and then tighten the front-back adjustment screw.

[0026] In summary, this utility model features a novel structural design. By incorporating up-down, left-right, and front-back adjustment screws, it achieves three-directional adjustment of the concealed hinge, solving the problem of difficulty in adjusting existing concealed hinges after installation and improving installation flexibility and convenience. Furthermore, the rational structural design ensures the hinge's stability and load-bearing capacity, making it suitable for installation on various doors, windows, and other furniture.

[0027] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An adjustable concealed hinge, characterized in that: Includes hinged frame components and fan-shaped components; The frame assembly includes a frame mounting panel (1), a frame seat (2), and a rotating sleeve (3). The frame seat (2) is vertically fixed to the middle of one side of the frame mounting panel (1). The rotating sleeve (3) is rotatably connected to the end of the frame seat (2) away from the frame mounting panel (1) via a rotating shaft (4). The fan blade assembly includes a fan blade mounting plate (5), a connecting arm (6), a connecting arm connecting plate (7), and a fan blade base plate (8). The fan blade base plate (8) is vertically fixed to one side edge of the fan blade mounting plate (5). The connecting arm connecting plate (7) is connected to the fan blade base plate (8) through a left-right adjustment structure. One end of the connecting arm (6) is connected to the connecting arm connecting plate (7) through a front-back adjustment structure, and the other end is fixedly connected to the rotating shaft sleeve (3).

2. The adjustable concealed hinge according to claim 1, characterized in that: The frame mounting panel (1) is provided with a plurality of first screw holes (9), which are symmetrically distributed at the upper and lower ends of the frame mounting panel (1); the frame mounting panel (1) is also provided with at least two waist-shaped holes, which extend vertically and are located on both sides of the frame seat, and upper and lower adjusting screws are fitted in the waist-shaped holes, with the ends of the upper and lower adjusting screws threadedly connected to the frame seat.

3. The adjustable concealed hinge according to claim 1, characterized in that: The fan blade mounting plate (5) is provided with a plurality of second screw holes (11), which are evenly distributed around the fan blade mounting plate (5); the fan blade base plate (8) is provided with a horizontally extending strip hole, and the connecting arm plate (7) is provided with a third screw hole (12) at the position corresponding to the strip hole. The left and right adjustment screws pass through the strip hole and are threadedly connected to the third screw hole.

4. An adjustable concealed hinge according to claim 1, characterized in that: One end of the connecting arm (6) is provided with a front and rear adjustment hole. The connecting arm connecting plate (7) is provided with a threaded post at the position corresponding to the front and rear adjustment hole. The front and rear adjustment screw passes through the front and rear adjustment hole and is threadedly connected to the threaded post. The front and rear adjustment hole is an elongated hole extending along the length of the connecting arm.

5. An adjustable concealed hinge according to claim 1, characterized in that: The rotating shaft sleeve (3) has a hollow cylindrical structure. One end of it is vertically fixed to the end of the connecting arm (6) away from the connecting arm connecting plate (7), and the other end is sleeved on the rotating shaft (4). The end of the frame seat (2) is provided with two oppositely arranged ear plates. The two ends of the rotating shaft (4) are respectively fixed on the two ear plates. The rotating shaft sleeve (3) is located between the two ear plates and can rotate freely around the rotating shaft.

6. An adjustable concealed hinge according to claim 1, characterized in that: The connection between the fan blade base plate (8) and the fan blade mounting plate (5) is provided with reinforcing ribs, which are fixedly connected to the fan blade base plate (8) and the fan blade mounting plate (5) respectively.