Adjustable concealed hinge with seal
By designing a sealed adjustable concealed hinge with eccentric adjustment and locking components, the problem of poor sealing performance of doors and windows in existing technologies has been solved, achieving convenient sealing adjustment and improved stability.
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
Existing concealed hinges lack adjustable sealing, resulting in poor sealing performance of doors and windows.
A sealed, adjustable concealed hinge is designed. Through an eccentrically set adjustment and locking component, the front and rear direction of the hinge can be adjusted, thereby enhancing the sealing between the door/window sash and the fixed frame.
It enables adjustment of the seal between the door/window sash and the fixed frame, which is highly convenient, reduces the difficulty of adjustment, and improves sealing and stability.
Smart Images

Figure CN224326168U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of door and window technology, specifically relating to a sealed adjustable concealed hinge. Background Technology
[0002] Concealed hinges are assembled between door / window sashes and fixed frames using a special embedded installation structure, allowing the sashes to rotate without being exposed, thus improving the cleanliness of the door / window product's appearance. Concealed hinges are generally available in adjustable and non-adjustable types. Adjustable concealed hinges allow for fine-tuning of their position to fit the fixed frame and achieve a better assembly effect. For example, the front-to-back position of the door / window sash can be adjusted to ensure a more secure seal between the sash and the frame when closed, or the tightness of the seal can be adjusted according to the actual installation situation. However, most existing concealed hinges lack adjustable sealing functionality, resulting in poor sealing performance in the assembled doors and windows. Utility Model Content
[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a sealed adjustable hidden hinge. This hidden hinge can adjust the front and rear direction of the door and window sash, thereby adjusting the sealing degree between the door and window sash and the fixed frame. It also has the advantages of convenient adjustment and easy operation.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] A sealed, adjustable, concealed hinge includes a frame hinge and a fan hinge;
[0006] The frame hinge includes a base and connecting portions disposed at the upper and lower ends of the base; the base has a recessed cavity with an open side portion; each connecting portion is provided with an adjustment hole and a locking hole; the locking hole is an oblong hole extending in the front-back direction, and a locking member is provided in the locking hole, which passes through the locking hole and locks and fixes itself to the fixed frame of the door or window; the adjustment hole is provided with an adjustment member, which includes an eccentrically disposed first adjustment portion and a second adjustment portion, the first adjustment portion being located in the adjustment hole, and the second adjustment portion being rotatably connected to the fixed frame; when the adjustment member is rotated, the base can move back and forth relative to the fixed frame;
[0007] The hinge is fixedly connected to the door / window frame, and the hinge is rotatably connected to the base. In the closed state, part of the hinge is located in the recess.
[0008] In a preferred embodiment of this utility model, the adjusting hole and the locking hole are arranged along the height direction, and the adjusting hole is located on the side of the locking hole away from the base;
[0009] The adjustment hole is provided with an opening, and the opening of the adjustment hole is located on the side opposite to the locking hole.
[0010] Preferably, the diameter of the first adjusting part is larger than that of the second adjusting part.
[0011] In a preferred embodiment of this utility model, the locking hole is a countersunk hole; the locking member includes a head and a threaded section, and the fixing frame is provided with a threaded hole that matches the threaded section.
[0012] Preferably, the fixing frame is provided with a clamping piece, which is embedded in the groove of the fixing frame and abuts against the side of the groove of the fixing frame; the threaded hole is provided on the clamping piece.
[0013] Preferably, the clamping piece is provided with a damping piece, and the two sides of the damping piece abut against the two sides of the groove of the fixing frame.
[0014] In a preferred embodiment of the present invention, the seat body includes a first plane, a second plane, a first side surface, and a second side surface. The first plane and the second plane are parallel to each other and horizontal. The first side surface and the second side surface are located between the first plane and the second plane, and the first side surface and the second side surface are perpendicular to each other. The first plane, the second plane, the first side surface, and the second side surface form the concave cavity.
[0015] Preferably, a pivot is provided between the first plane and the second plane; the hinge is connected to the pivot; the pivot is located on one side of the first side.
[0016] In a preferred embodiment of this utility model, the fan hinge includes a first hinge and a second hinge, the first hinge is rotatably connected to the frame hinge, the second hinge is connected to the fan frame, and the first hinge and the second hinge are detachably connected.
[0017] 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 is rotatably engaged with the frame hinge; one side of the second hinge is connected to the second plate, and the other side extends in the front-back direction.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] This utility model's adjustable concealed hinge allows for adjustment of the hinge's front-to-back direction by rotating the adjusting component and utilizing its eccentrically arranged first and second adjusting parts, thereby changing the sealing degree between the door / window sash and the fixed frame.
[0020] During adjustment, because the locking hole extends in the front-to-back direction, the locking element can move in the front-to-back direction within the locking hole. This allows the door and window sashes and hinges to be pre-fixed to the fixed frame before the sealing adjustment is performed. The sealing is then adjusted using the adjusting element. After adjustment, the locking element is fully tightened to fix the relative positions of the hinges, door and window sashes, and fixed frame. This reduces the burden of supporting the door and window sashes during adjustment, and may even eliminate the need to support them, reducing adjustment difficulty and greatly improving convenience. Attached Figure Description
[0021] 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.
[0022] Figure 1 This is a perspective view (closed state) of a sealed adjustable concealed hinge according to the present invention.
[0023] Figure 2 This is an exploded perspective view (open state) of a portion of the structure of a sealed adjustable concealed hinge according to this utility model.
[0024] Figure 3 This is a perspective view (open state) of a sealed adjustable concealed hinge according to the present invention.
[0025] Figure 4 This is a 3D view of the frame hinges and pivots.
[0026] Figure 5 This is a three-dimensional view of the first hinge.
[0027] Figure 6 This is a three-dimensional view of the second hinge.
[0028] Figure 7 This is a schematic diagram of the installation of a sealed adjustable concealed hinge and a fixing frame according to the present invention.
[0029] in:
[0030] 1-Frame hinge, 101-Base, 1011-First side, 1012-Second side, 1013-First plane, 1014-Second plane, 1015-Threaded inner hole, 102-Connecting part, 1021-Adjusting hole, 1022-Locking hole, 103-Cavity;
[0031] 2-Hinge 201-First hinge 2011-First panel 2012-Second panel 202-Second hinge;
[0032] 3-Clamping piece;
[0033] 4-Adjusting component, 401-First adjusting part, 402-Second adjusting part;
[0034] 5-Locking component;
[0035] 6-Damping plate;
[0036] 7-Adjusting screw;
[0037] 8-Spindle;
[0038] 9 - Cross position. Detailed Implementation
[0039] 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.
[0040] 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.
[0041] See Figures 1-7 This embodiment discloses a sealed adjustable concealed hinge, including a frame hinge 1 and a sash hinge 2. The frame hinge 1 includes a base 101 and connecting portions 102 located at the upper and lower ends of the base 101. Each connecting portion 102 has an adjustment hole 1021 and a locking hole 1022. The locking hole 1022 is an oblong hole extending in the front-back direction, and a locking member 5 is provided in the locking hole 1022. The locking member 5 passes through the locking hole 1022 and is locked and fixed to the fixed frame of the door or window. An adjustment member 4 is provided in the adjustment hole 1021. The adjustment member 4 includes an eccentrically positioned first adjustment portion 401 and a second adjustment portion 402. The first adjustment portion 401 is located in the adjustment hole 1021, and the second adjustment portion 402 is rotatably connected to the fixed frame. In this embodiment, the diameter of the first adjustment portion 401 is larger than that of the second adjustment portion 402. When the adjustment member 4 is rotated using a tool, the base 101 can move back and forth relative to the fixed frame.
[0042] The adjusting hole 1021 and the locking hole 1022 are arranged along the height direction, and the adjusting hole 1021 is located on the side of the locking hole 1022 away from the seat 101. The adjusting hole 1021 is open, and the opening of the adjusting hole 1021 is located on the side opposite to the locking hole 1022. In this embodiment, the adjusting hole 1021 can be set as a half-waist-shaped hole extending along the height direction, so that the first adjusting part 401 of the adjusting member 4 can generate a front and back driving force on the frame hinge 1, while the height direction is not affected.
[0043] The adjustable concealed hinge of this embodiment can adjust the front-to-back direction of the hinge by rotating the adjusting member 4 and utilizing the first adjusting part 401 and the second adjusting part 402 that are eccentrically arranged to each other. This can change the sealing degree between the door / window sash and the fixed frame. It has the characteristics of convenient adjustment, large adjustment range and simple installation.
[0044] Furthermore, this embodiment provides two locking holes 1022, both of which are countersunk holes. This improves the stability of the locking holes with the fixed frame profile and allows for a better fit with the locking component 5. The locking component 5 in this embodiment can be a screw, including a head and a threaded section; of course, the locking component 5 in this embodiment can also be other parts with threaded structures.
[0045] In this embodiment, the fixed frame is provided with a clamping piece 3, which is embedded in the groove of the fixed frame and abuts against the side of the groove of the fixed frame; the clamping piece 3 is provided with a threaded hole that cooperates with the locking member 5. Furthermore, the second adjusting part 402 of the adjusting member 4 can be movably riveted to the clamping piece 3, so that the frame hinge 1 can move back and forth when the adjusting member 4 is rotated. Of course, in addition to being movably riveted to the clamping piece 3, the second adjusting part 402 of the adjusting member 4 can also adopt other movable connection methods, or the second adjusting part 402 can be configured to be movably connected to the profile of the fixed frame.
[0046] In this embodiment, the locking engagement between the locking member 5 and the clamping piece 3 can effectively and stably lock the frame hinge 1 onto the fixed frame. The clamping method helps to improve the locking stability and also helps to avoid gaps between the frame hinge 1 and the fixed frame, thereby preventing the door and window from shaking during use.
[0047] Furthermore, in this embodiment, the clamping piece 3 is provided with a damping piece 6, the two sides of which abut against the two sides of the groove of the fixing frame. This prevents the clamping piece 3 from falling off during pre-installation and allows for flexible adjustment of its position within the groove. In this embodiment, the damping piece 6 and the clamping piece 3 can be connected by riveting. Both sides of the damping piece 6 have perforated holes, giving it a certain degree of deformability.
[0048] See Figures 1-4The seat 101 includes a first plane 1013, a second plane 1014, a first side 1011, and a second side 1012. The first plane 1013 and the second plane 1014 are parallel and horizontal to each other. The first side 1011 and the second side 1012 are located between the first plane 1013 and the second plane 1014, and the first side 1011 and the second side 1012 are perpendicular to each other. The first plane 1013, the second plane 1014, the first side 1011, and the second side 1012 form a recess 103 with one side open.
[0049] A pivot 8 is provided between the first plane 1013 and the second plane 1014; the hinge 2 is connected to the pivot 8; the pivot 8 is located on one side of the first side 1011.
[0050] In this embodiment, the sash hinge 2 is fixedly connected to the sash frame of the door and window, and the sash hinge 2 is rotatably connected to the base 101. In the closed state, part of the sash hinge 2 is located in the cavity 103. Specifically, 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. The first hinge 201 and the second hinge 202 are detachably connected.
[0051] 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 103; the first plate 2011 is rotatably engaged with the frame hinge 1, specifically with the pivot 8; one side of the second hinge 202 is connected to the second plate 2012, and the other side extends in the front-back direction.
[0052] By combining the sash hinge 2 with the frame hinge 1, it is possible to achieve a rotatable connection between the door / window sash and the fixed frame, and the hinge can be hidden between the door / window sash and the fixed frame without being exposed, thus achieving the purpose of concealment.
[0053] Furthermore, in addition to achieving sealing adjustment, this embodiment can also add left-right and height adjustment functions based on the existing technology, thereby achieving a three-dimensional adjustment effect for the hinge.
[0054] In conjunction with the technical solution of the sealed adjustable concealed hinge of this embodiment, this embodiment also provides a height-adjustable implementation method. Specifically, in this embodiment, the sash hinge 2 is located in the cavity 103 of the frame hinge 1, and a certain gap is left between the sash hinge 2 and the upper and lower sides of the cavity 103, that is, there is a certain gap between the sash hinge 2 and the first plane 1013 and the second plane 1014 of the frame hinge 1. At the same time, adjusting screws 7 for adjusting the height of the hinge and the door / window sash are provided on the first plane 1013 and the second plane 1014 of the frame hinge 1, and threaded inner holes 1015 matching them are provided on the first plane 1013 and the second plane 1014. Further, the end of the adjusting screw 7 away from the sash hinge 2 has a support part, which can be supported on the profile of the fixed frame, such as... Figure 7 As shown, the support is located at the cross position 9 of the profile. The adjusting screw 7 has an internal hexagonal hole at the end near the hinge 2. When it is necessary to change the position of the adjusting screw 7, a tool can be inserted into the gap between the hinge 2 and the first plane 1013 or the second plane 1014 and matched with the internal hexagonal hole of the adjusting screw 7 to achieve rotational adjustment of the adjusting screw 7, thereby achieving the purpose of changing the height of the hinge and the door / window sash.
[0055] The height adjustment scheme in this embodiment can achieve the height adjustment function on the one hand, and on the other hand, it can use the adjusting screw 7 to support the hinge on the profile of the fixed frame, thereby improving the positional stability of the door and window sash and the hinge and preventing it from falling due to gravity.
[0056] 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 sealed, adjustable, concealed hinge, comprising a frame hinge and a fan hinge; characterized in that, The frame hinge includes a base and connecting portions disposed at the upper and lower ends of the base; the base has a recessed cavity with an open side portion; each connecting portion is provided with an adjustment hole and a locking hole; the locking hole is an oblong hole extending in the front-back direction, and a locking member is provided in the locking hole, which passes through the locking hole and locks and fixes itself to the fixed frame of the door or window; the adjustment hole is provided with an adjustment member, which includes an eccentrically disposed first adjustment portion and a second adjustment portion, the first adjustment portion being located in the adjustment hole, and the second adjustment portion being rotatably connected to the fixed frame; when the adjustment member is rotated, the base can move back and forth relative to the fixed frame; The hinge is fixedly connected to the door / window frame, and the hinge is rotatably connected to the base. In the closed state, part of the hinge is located in the recess.
2. The sealed adjustable concealed hinge according to claim 1, characterized in that, The adjusting hole and the locking hole are arranged along the height direction, and the adjusting hole is located on the side of the locking hole away from the base; The adjustment hole is provided with an opening, and the opening of the adjustment hole is located on the side opposite to the locking hole.
3. The sealed adjustable concealed hinge according to claim 1, characterized in that, The diameter of the first adjusting part is larger than that of the second adjusting part.
4. The sealed adjustable concealed hinge according to any one of claims 1-3, characterized in that, The locking hole is a countersunk hole; the locking component includes a head and a threaded section, and the fixing frame is provided with a threaded hole that matches the threaded section.
5. The sealed adjustable concealed hinge according to claim 4, characterized in that, The fixing frame is provided with a clamping piece, which is embedded in the groove of the fixing frame and abuts against the side of the groove of the fixing frame; the threaded hole is provided on the clamping piece.
6. The sealed adjustable concealed hinge according to claim 5, characterized in that, The clamping plate is provided with a damping plate, and the two sides of the damping plate abut against the two sides of the groove of the fixing frame.
7. The sealed adjustable concealed hinge according to claim 1, characterized in that, The seat includes a first plane, a second plane, a first side surface, and a second side surface. The first plane and the second plane are parallel to each other and horizontal. The first side surface and the second side surface are located between the first plane and the second plane, and the first side surface and the second side surface are perpendicular to each other. The first plane, the second plane, the first side surface, and the second side surface form the concave cavity.
8. The sealed adjustable concealed hinge according to claim 7, characterized in that, A pivot is provided between the first plane and the second plane; the hinge is connected to the pivot; the pivot is located on one side of the first side.
9. The sealed adjustable concealed hinge according to claim 1, 7, or 8, characterized in that, 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 first hinge and the second hinge are detachably connected.
10. The sealed adjustable concealed hinge according to claim 9, 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 is rotatably engaged with the frame hinge; one side of the second hinge is connected to the second plate, and the other side extends in the front-back direction.