A left and right adjustable hidden hinge, door and window

By designing a left-right adjustable concealed hinge and utilizing an eccentrically positioned column and locking mechanism, the problem of difficult adjustment of concealed hinge positions was solved, enabling convenient adjustment and fixation of door and window sashes.

CN224326167UActive Publication Date: 2026-06-05CMECH (GUANGZHOU) INDUSTRIAL LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CMECH (GUANGZHOU) INDUSTRIAL LTD
Filing Date
2025-06-04
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing concealed hinges are difficult to adjust during assembly, especially since they require support for the door and window sashes, which increases the difficulty of operation.

Method used

Design a left-right adjustable concealed hinge, including a frame hinge, a fan hinge, and an adjusting component. The fan hinge can be moved left and right and fixed by the cooperation of an eccentrically set column and a locking component.

Benefits of technology

This reduces the difficulty of adjusting the position of door and window sashes, allowing them to be temporarily pre-fixed, simplifying the assembly process and improving ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to door and window technical field provides a left and right adjustable hidden hinge, door and window, the hidden hinge among them includes frame hinge, fan hinge and adjusting spare, is equipped with recessed cavity on frame hinge, is located in recessed cavity under the part of fan hinge in the closed state, fan hinge includes first hinge and second hinge, first hinge is connected with frame hinge rotation, second hinge is connected with fan frame, second hinge is installed on first hinge through a plurality of locking pieces, is equipped with the waist -shaped hole of extending and penetrating first hinge along the height direction on first hinge, adjusting spare includes first cylinder and second cylinder, first cylinder is located in waist -shaped hole matching, second cylinder is connected with second hinge swing, a plurality of locking pieces are distributed in the upper and lower sides of adjusting spare, is equipped with a plurality of locking holes on first hinge, locking hole extends along left and right direction, each locking piece passes through locking hole and is detachably locked with second hinge. The utility model's hidden hinge has left and right adjustable function, and convenient operation.
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Description

Technical Field

[0001] This utility model belongs to the field of door and window technology, specifically relating to a left-right adjustable hidden hinge. Background Technology

[0002] Hinges are typically installed between the door / window sash and the frame, allowing for the swivel and frame to open and close. To improve the simplicity and aesthetics of door and window products, and to protect them from damage, a concealed hinge has emerged on the market. This concealed hinge is installed within the profile grooves of the door / window sash and frame, offering the advantage of not being exposed.

[0003] However, the special installation position of the concealed hinge increases the difficulty of adjusting the hinge position during assembly. In particular, existing technology requires supporting the door and window sash during the adjustment process, which significantly increases the difficulty of operation. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a left-right adjustable hidden hinge, which has a left-right adjustable function and is easy to operate.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A retractable hinge with adjustable sides includes a frame hinge, a fan hinge, and an adjustment mechanism;

[0007] The frame hinge is connected to the fixed frame of the door and window, and the frame hinge has a recessed cavity; the sash hinge is connected to the sash frame of the door and window, and the sash hinge and the frame hinge are rotatably connected, with part of the sash hinge located in the recessed cavity when closed;

[0008] The fan hinge includes a first hinge and a second hinge. The first hinge is rotatably connected to the frame hinge, and the second hinge is connected to the fan frame. The second hinge is mounted on the first hinge by a plurality of locking members. The first hinge has an oblong hole extending along the height direction and penetrating the first hinge. The adjusting member includes an eccentrically arranged first column and a second column. The first column is matched and located in the oblong hole, and the second column is connected to the second hinge. When the adjusting member is rotated, the second hinge can move left and right relative to the first hinge. The plurality of locking members are distributed on the upper and lower sides of the adjusting member. The first hinge has a plurality of locking holes that match each locking member. The locking holes extend in the left and right direction, and each locking member passes through the locking hole and is detachably locked to the second hinge.

[0009] In a preferred embodiment of this utility model, a portion of the concave cavity is closed, and a rotating shaft is provided in the concave cavity, with the rotating shaft located on one side of the closed side of the concave cavity; one side of the first hinge is rotatably connected to the frame hinge by cooperating with the rotating shaft.

[0010] Preferably, the first hinge includes a first plate and a second plate; in the closed state, the first plate and the second plate are connected at a certain angle and correspond to the closed side of the cavity; the first plate cooperates with the pivot, and the waist-shaped hole and the locking hole are disposed on the second plate.

[0011] In a preferred embodiment of this utility model, the diameter of the first column is larger than that of the second column, and the second column is riveted to the second hinge.

[0012] In a preferred embodiment of this utility model, the locking member is provided with an external thread structure, and the second hinge is provided with a threaded hole; the locking member passes through the locking hole on the first hinge and then engages with the threaded hole.

[0013] In a preferred embodiment of this utility model, the first hinge has limiting blocks at both its upper and lower ends on the side facing the second hinge; the second hinge has a locking part, which is located between the two limiting blocks of the first hinge.

[0014] In a preferred embodiment of this utility model, the second hinge is locked and fixed to the fan frame by a clamping block; the clamping block is located in the groove of the fan frame and abuts against the side of the groove of the fan frame; the second hinge is provided with a clamping screw, and the clamping screw is connected to the clamping block.

[0015] In a preferred embodiment of this utility model, the frame hinge includes a base body, and the cavity is disposed on the base body; both the upper and lower ends of the base body are provided with connecting parts, and the connecting parts are fixedly connected to the fixed frame of the door and window.

[0016] This utility model also discloses a door that includes the aforementioned adjustable hidden hinges.

[0017] A door includes a fixed frame, a door leaf, and several of the aforementioned left-right adjustable concealed hinges.

[0018] This utility model also discloses a window that includes the aforementioned adjustable hidden hinge.

[0019] A window includes a fixed frame, a window sash, and several of the aforementioned left-right adjustable concealed hinges.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This utility model discloses a left-right adjustable concealed hinge. The door / window frame is fixed to a second hinge. When left-right adjustment of the door / window sash is required, the second hinge is pre-fixed using a locking device, ensuring both the door / window sash and the second hinge are attached to the first hinge. At this point, the locking device is not fully locked onto the second hinge; the door / window sash is suspended using the locking hole on the first hinge. Subsequently, rotating the eccentric component causes the second hinge to move left-right relative to the first hinge, thereby causing the door / window sash to move synchronously left-right. Since the locking hole extends left-right, the locking device can also move left-right without obstructing the movement of the door / window sash and the second hinge. After the position is adjusted, the second hinge is locked and fixed to the first hinge using the locking device.

[0022] In the process of adjusting the left and right directions of the door and window sash and the second hinge, this utility model utilizes the cooperative assembly relationship of the first hinge, the second hinge and the locking component, so that the door and window sash can be temporarily pre-fixed without the need for manual support. This greatly facilitates the adjustment of the position of the hinge and the door and window sash and significantly reduces the difficulty of operation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a perspective view (closed state) of the left and right adjustable hidden hinge of this utility model.

[0025] Figure 2 for Figure 1 Another perspective stereoscopic view.

[0026] Figure 3 This is a partially exploded view of the left-right adjustable hidden hinge of this utility model.

[0027] Figure 4 This is a three-dimensional view of the first hinge.

[0028] Figure 5 This is a three-dimensional view of the second hinge.

[0029] Figure 6 This is a 3D view of the frame hinges and pivots.

[0030] Figure 7 This is a perspective view (open state) of the left-right adjustable hidden hinge of this utility model.

[0031] Figure 8This is a schematic diagram of the assembly (open state) of the left and right adjustable hidden hinge and fan frame of this utility model.

[0032] Figure 9 This is a partially exploded view (open state) of the left-right adjustable hidden hinge of this utility model.

[0033] in:

[0034] 1-Frame hinge, 101-Frame hinge, 102-Connecting part, 1021-Adjusting hole;

[0035] 2-Hinge, 201-First hinge, 2011-First plate, 2012-Second plate, 2013-Locking hole, 2014-Oval hole, 2015-Limiting block, 202-Second hinge, 2021-Locking part, 2022-Threaded hole, 2023-Through hole;

[0036] 3-Clamping block;

[0037] 4-Cavity;

[0038] 5-Adjusting component, 501-First column, 502-Second column;

[0039] 6-Locking component,

[0040] 7-Spindle,

[0041] 8-Sleeve;

[0042] 9-Clamping screw;

[0043] 10- Locking screw;

[0044] 11-Eccentric component;

[0045] 12-Clamping piece, 1201-Through hole;

[0046] 13-Sector frame. Detailed Implementation

[0047] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0048] 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 invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0049] See Figures 1-9 This embodiment discloses a left-right adjustable concealed hinge, including a frame hinge 1, a sash hinge 2, and an adjusting member 5. The frame hinge 1 is connected to the fixed frame of the door or window, and the frame hinge 1 has a recess 4; the sash hinge 2 is connected to the sash frame 13 of the door or window, and the sash hinge 2 and the frame hinge 1 are rotatably connected. In the closed state, part of the sash hinge 2 is located in the recess 4. The sash hinge 2 includes a first hinge 201 and a second hinge 202. The first hinge 201 is rotatably connected to the frame hinge 1, and the second hinge 202 is connected to the sash frame 13. The second hinge 202 is installed on the first hinge 201 by several locking elements 6. The first hinge 201 has an oblong hole 2014 extending along the height direction and penetrating the first hinge 201. The adjusting element 5 includes an eccentrically arranged first column 501 and second column 502. The first column 501 is matched and located in the oblong hole 2014, and the second column 502 is connected to the second hinge 202. When the adjusting element 5 is rotated with a tool, the eccentric arrangement of the first column 501 and the second column 502 can cause the second hinge 202 to move left and right relative to the first hinge 201, so as to realize the left and right adjustment of the door and window sash. Several locking components 6 are distributed on the upper and lower sides of the adjusting component 5. The first hinge 201 is provided with several locking holes 2013 that match each locking component 6. The locking holes 2013 extend in the left and right direction. Each locking component 6 passes through the locking hole 2013 and is detachably locked to the second hinge 202.

[0050] The adjustable concealed hinge of this embodiment utilizes the cooperative assembly relationship of the first hinge 201, the second hinge 202, and the locking component 6 during the left-right adjustment of the door / window sash and the second hinge 202. This allows the door / window sash to be temporarily pre-fixed without requiring manual support, greatly facilitating the adjustment of the hinge and the door / window sash position and significantly reducing the difficulty of operation. Furthermore, the left-right adjustment is achieved through the cooperation of the oblong hole 2014 and the eccentrically positioned adjusting component 5, offering advantages such as a large adjustment range and convenient adjustment. Moreover, the sash frame 13 is locked to the second hinge 201, making installation simple.

[0051] Furthermore, the frame hinge 1 of this embodiment includes a base 101, and a cavity 4 is disposed on the base 101. In this embodiment, part of the side of the cavity 4 is closed, and the base 101 of the frame hinge 1 forms the closed side. Both the upper and lower ends of the base 101 are provided with connecting parts 102, and the connecting parts 102 are fixedly connected to the fixed frame of the door and window.

[0052] Furthermore, a rotating shaft 7 is provided in the cavity 4, and the rotating shaft 7 is located on one side of the closed side of the cavity 4; one side of the first hinge 201 is rotatably connected to the frame hinge 1 by cooperating with the rotating shaft 7. Bushings 8 are also provided on the upper and lower sides of the cavity 4, and the two ends of the rotating shaft 7 pass through the bushings 8.

[0053] Furthermore, the first hinge 201 includes a first plate 2011 and a second plate 2012; in the closed state, the first plate 2011 and the second plate 2012 are connected at a certain angle and correspond to the closed side of the cavity 4; in this embodiment, the first plate 2011 and the second plate 2012 are manufactured by integral molding. Of course, in practical applications, the first plate 2011 and the second plate 2012 can also be connected and fixed by assembly or splicing. The first plate 2011 cooperates with the rotating shaft 7, and the oblong hole 2014 and the locking hole 2013 are provided on the second plate 2012.

[0054] The first hinge 201 has limiting blocks 2015 at both its upper and lower ends on the side facing the second hinge 202; the second hinge 202 has a locking part 2021, which is located between the two limiting blocks 2015 of the first hinge 201. The limiting blocks 2015, by virtue of their placement, can, on the one hand, create a limiting effect with the locking part 2021 of the second hinge 202, improving assembly accuracy; on the other hand, they allow the second hinge 202 to move more easily left and right during adjustment.

[0055] This embodiment adopts such a combination of sash hinge 2 and frame hinge 1, which on the one hand makes the structure more compact when closed, and on the other hand makes it easier to install the hinges between the fixed frame and sash frame 13 of the door and window, thereby achieving the effect of not being exposed and hidden.

[0056] Furthermore, in this embodiment, the diameter of the first column 501 is larger than that of the second column 502, and the second column 502 is riveted to the second hinge 202. Further, the riveting between the second column 502 and the second hinge 202 can be found in [reference needed]. Figure 3 A through hole 2023 can be provided on the second hinge 202 to cooperate with the second column 502, so that the second column 502 and the second hinge 202 can be rotated at the same time, and the second hinge 202 can also be moved left and right.

[0057] In this embodiment, the locking member 6 has an external thread structure, and the second hinge 202 has a threaded hole 2022. The locking member 6 passes through the locking hole 2013 on the first hinge 201 and engages with the threaded hole 2022. In this embodiment, the locking member 6 can be a screw, bolt, bolt, or other part with an external thread structure. To further facilitate locking or pre-fixing of the second hinge 202, the locking hole 2013 in this embodiment can be a countersunk hole structure, such as... Figure 3 and Figure 4 As shown.

[0058] In this embodiment, the second hinge 202 can be fixed to the sash frame 13 in various ways, such as bolt fixing or welding fixing. To facilitate assembly and achieve a detachable design, the second hinge 202 and the sash frame 13 are locked together by a clamping block 3. The clamping block 3 is located within the groove of the sash frame 13 and abuts against the side of the groove. The second hinge 202 is provided with a clamping screw 9, which is connected to the clamping block 3. Using the clamping block 3 to lock the second hinge 202 and the sash frame 13 improves their stability and effectively overcomes the defect of gaps between them, making the door and window sash more stable and reliable during opening and closing, preventing wobbling.

[0059] In this embodiment, the adjustable concealed hinge fixes the door / window frame 13 to the second hinge 202. When the door / window sash needs to be adjusted left or right, the locking member 6 pre-fixes the second hinge 202, ensuring that both the door / window sash and the second hinge 202 are attached to the first hinge 201. At this time, the locking member 6 does not fully lock the second hinge 202, and the door / window sash is suspended using the locking hole 2013 on the first hinge 201. Subsequently, by rotating the eccentric member 11, the second hinge 202 moves left or right relative to the first hinge 201, thereby causing the door / window sash to move left or right synchronously. Since the locking hole 2013 extends in the left-right direction, the locking member 6 can also move left or right without obstructing the displacement of the door / window sash and the second hinge 202. After the position adjustment is complete, the locking member 6 is used to lock the second hinge 202 onto the first hinge 201.

[0060] In the process of adjusting the left and right directions of the door and window sash and the second hinge 202, this utility model utilizes the cooperative assembly relationship of the first hinge 201, the second hinge 202 and the locking part 6, so that the door and window sash can be temporarily pre-fixed without the need for manual support of the door and window sash. This greatly facilitates the adjustment of the position of the hinge and the door and window sash and significantly reduces the difficulty of operation.

[0061] To further enhance the flexibility of the concealed hinge in this embodiment, an adjustable sealing function can be added, allowing adjustment of the hinge's front-to-back direction. Specifically, each connecting portion 102 of the frame hinge 1 in this embodiment is provided with an eccentric member 11, which includes an eccentrically positioned first circular block and a second circular block. An adjustment hole 1021 is provided on the connecting portion 102, extending through the connecting portion 102 and along the front-to-back direction; alternatively, the adjustment hole 1021 can be an open design. The first circular block of the eccentric member 11 is fitted into the adjustment hole 1021, while the second circular hole is movably connected to the fixed frame of the door or window, which can be achieved through a riveted connection. Figure 9As shown, the connecting part 102 is also provided with several locking screws 10, and the connecting part 102 is provided with a through hole 1201 extending in the front-back direction. The locking screws 10 pass through the through hole 1201 and are locked to the fixing frame. The through hole 1201 can also be a countersunk hole. The connection between the locking screws 10 and the fixing frame can be achieved by directly providing a hole with internal threads on the fixing frame, or by providing a clamping piece 12 in a groove in the fixing frame. The locking action of the clamping piece 12 and the locking screws 10 is used to lock and fix the frame hinge 1 to the fixing frame.

[0062] This embodiment also discloses a door, including a fixed frame, a door leaf, and several left and right adjustable hidden hinges.

[0063] This embodiment also discloses a window, including a fixed frame, a window sash, and several left and right adjustable hidden hinges.

[0064] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A left-right adjustable concealed hinge, characterized in that, Includes frame hinges, sash hinges, and adjusting components; The frame hinge is connected to the fixed frame of the door and window, and the frame hinge has a recessed cavity; the sash hinge is connected to the sash frame of the door and window, and the sash hinge and the frame hinge are rotatably connected, with part of the sash hinge located in the recessed cavity when closed; The fan hinge includes a first hinge and a second hinge. The first hinge is rotatably connected to the frame hinge, and the second hinge is connected to the fan frame. The second hinge is mounted on the first hinge by a plurality of locking members. The first hinge has an oblong hole extending along the height direction and penetrating the first hinge. The adjusting member includes an eccentrically arranged first column and a second column. The first column is matched and located in the oblong hole, and the second column is movably connected to the second hinge. When the adjusting member is rotated, the second hinge can move left and right relative to the first hinge. The plurality of locking members are distributed on the upper and lower sides of the adjusting member. The first hinge has a plurality of locking holes that match each locking member. The locking holes extend in the left and right direction, and each locking member passes through the locking hole and is detachably locked to the second hinge.

2. The left-right adjustable hidden hinge according to claim 1, characterized in that, The cavity is partially closed on one side, and a pivot is provided in the cavity. The pivot is located on one side of the closed side of the cavity. One side of the first hinge is rotatably connected to the frame hinge by cooperating with the pivot.

3. The left-right adjustable hidden hinge according to claim 2, characterized in that, The first hinge includes a first plate and a second plate; in the closed state, the first plate and the second plate are connected at a certain angle and correspond to the closed side of the cavity; the first plate cooperates with the pivot, and the waist-shaped hole and the locking hole are disposed on the second plate.

4. The left-right adjustable hidden hinge according to claim 1, characterized in that, The diameter of the first column is larger than that of the second column, and the second column is riveted to the second hinge.

5. The left-right adjustable concealed hinge according to any one of claims 1-4, characterized in that, The locking member has an external thread structure, and the second hinge has a threaded hole; the locking member passes through the locking hole on the first hinge and engages with the threaded hole.

6. The left-right adjustable hidden hinge according to claim 1, characterized in that, The first hinge has limiting blocks at both the top and bottom ends on the side facing the second hinge; the second hinge has a locking part, which is located between the two limiting blocks of the first hinge.

7. The left-right adjustable hidden hinge according to claim 1, characterized in that, The second hinge is locked and fixed to the fan frame by a clamping block; the clamping block is located in the groove of the fan frame and abuts against the side of the groove of the fan frame; the second hinge is provided with a clamping screw, which is connected to the clamping block.

8. The left-right adjustable hidden hinge according to claim 1, characterized in that, The frame hinge includes a base body, and the cavity is disposed on the base body; both the upper and lower ends of the base body are provided with connecting parts, and the connecting parts are fixedly connected to the fixed frame of the door and window.

9. A door, characterized in that, It includes a fixed frame, a door leaf, and several left-right adjustable hidden hinges as described in any one of claims 1-8.

10. A window, characterized in that, It includes a fixed frame, a window sash, and several left-right adjustable concealed hinges as described in any one of claims 1-8.