High-load-bearing invisible inward-opening and inward-falling lower hinge

By using a split installation design and adjustment components, the problem of insufficient load-bearing capacity of concealed inward-opening and tilt-and-turn hinges is solved, achieving high load-bearing capacity and convenient installation, making it suitable for heavy-duty windows.

CN224048932UActive Publication Date: 2026-03-27XINGSANXING CLOUD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing concealed inward-opening and tilt-and-turn hinges cannot achieve high load-bearing capacity, mainly because the load-bearing capacity of the lower hinge is insufficient, resulting in a loose structure that is difficult to apply to heavy-duty windows.

Method used

The design employs a modular installation system consisting of components such as a frame fixing seat, frame fixing rod, positioning rod, elliptical hole, first rivet, spring, long connecting rod, pin, bushing, sash fixing block, and second rivet. This allows the hinges to be concealed within the profile groove, and the tilt and position of the window sash can be finely adjusted by adjusting the components and limiting blocks, thereby improving structural compactness and load-bearing capacity.

Benefits of technology

It achieves concealed installation of the hinges without any external exposure, improves load-bearing capacity and service life, is suitable for installation on heavy-duty windows, and is easy to install.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of hinges, and relates to a high-load-bearing invisible inward-opening and inward-falling lower hinge. The frame fixing device comprises a frame fixing seat, a frame fixing rod is riveted to the side wall of the upper side of the frame fixing seat, a positioning rod is rotationally riveted to the upper side of the frame fixing rod, an elliptical hole is formed in the frame fixing seat, a first rivet is movably inserted into the elliptical hole, a spring is arranged in the first rivet, and the positioning rod is rotationally riveted to the positioning rod. The first rivet is sleeved with a long connecting rod in a rotating mode, the long connecting rod is located above the positioning rod, a pin shaft is fixedly connected to the long connecting rod, and the pin shaft is sleeved with a shaft sleeve in a rotating mode. According to the inward-opening and inward-reversing hinge, the split type installation design is adopted, so that the structure of the whole inward-opening and inward-reversing hinge is more compact, the bearing performance of the hinge can be improved, the hinge can be suitable for installation of heavy windows, and the service life of the inward-opening and inward-reversing hinge is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to hinge technical field relates to a high bearing invisible inside open inside reverse lower hinge. BACKGROUND

[0002] Hinge is often composed of two -fold formula, is the component of connecting two parts of object and can make it active, hinge is the important part of door and window installation, hinge can realize the smooth opening and closing of door and window, and can bear the weight of door and window.

[0003] The existing hidden inside open inside reverse hinge can not realize high bearing, its main reason is that the bearing capacity of lower hinge is insufficient, as the main bearing part of the whole inside open inside reverse system, lower hinge needs to realize the tilt of frame and sash when inside reverse on the basis of bearing, leading to the structure of whole lower hinge is loose, therefore the existing invisible inside open inside reverse hinge is difficult to realize high bearing. UTILITY MODEL CONTENTS

[0004] The utility model relates to a kind of high bearing invisible inside open inside reverse lower hinge to solve the above problems.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of high bearing invisible inside open inside reverse lower hinge, including frame fixed seat, the side wall riveting of frame fixed seat upper side has frame fixed rod, the upper side of frame fixed rod is riveted with the positioning rod, oval hole is set up in frame fixed seat, first rivet is movably inserted in oval hole, spring is arranged in first rivet, long connecting rod is rotatably sleeved outside first rivet, long connecting rod is located above positioning rod, pin shaft is fixedly connected on long connecting rod, shaft sleeve is rotatably sleeved outside pin shaft, fan fixed block is fixedly connected outside shaft sleeve, second rivet is fixedly connected on long connecting rod, and adjusting assembly is connected on second rivet.

[0007] In the above high bearing invisible inside open inside reverse lower hinge, the adjusting assembly includes adjusting seat fixedly sleeved on second rivet, adjusting block is fixedly connected on adjusting seat by internal hexagon countersunk head screw and square nut.

[0008] In the above high bearing invisible inside open inside reverse lower hinge, the upper side of frame fixed seat is fixedly connected with adjusting block, strip hole is set up in frame fixed rod, adjusting block passes through frame fixed rod by strip hole, obliquely arranged screw hole is set up in the vertical side wall of adjusting block, internal hexagonal cylindrical head screw is threadedly sleeved in screw hole, and internal hexagonal cylindrical head screw is obliquely arranged.

[0009] In the above high bearing invisible inside open inside reverse lower hinge, the right end of frame fixed rod is fixedly connected with positioning plate, and the positioning plate is perpendicular to frame fixed rod.

[0010] In the high-bearing weight invisible in-opening and in-falling hinge, a plurality of inner hexagonal taper end set screws are threadedly connected on the frame fixing seat.

[0011] In the high-bearing weight invisible in-opening and in-falling hinge, the fan fixing block comprises a sleeve fixedly sleeved outside the shaft sleeve, two connecting pieces are fixedly and symmetrically connected to vertical outer walls of the sleeve, fixing holes are formed in the connecting pieces, and a rotating plate is fixedly connected to the sleeve and located above the long connecting rod.

[0012] In the high-bearing weight invisible in-opening and in-falling hinge, a plurality of third rivets are fixedly connected to the frame fixing seat, and the frame fixing rod is fixed to the frame fixing seat through the third rivets.

[0013] In the high-bearing weight invisible in-opening and in-falling hinge, a gasket is movably sleeved on each of the third rivets.

[0014] In the high-bearing weight invisible in-opening and in-falling hinge, a first limiting block for limiting the frame fixing rod is fixedly connected in the frame fixing seat.

[0015] In the high-bearing weight invisible in-opening and in-falling hinge, a second limiting block for limiting the rotating plate is fixedly connected to a side wall of the long connecting rod.

[0016] Compared with the prior art, the high-bearing weight invisible in-opening and in-falling hinge has the following advantages:

[0017] The frame fixing seat, the frame fixing rod, the positioning rod, the oval hole, the first rivet, the spring, the long connecting rod, the pin shaft, the shaft sleeve, the fan fixing block and the second rivet are arranged, the frame fixing seat is installed in the slot of the profile when the window frame is installed, so that the hinge can be hidden in the slot of the profile, thereby realizing hidden installation without external leakage, the fan fixing block is installed on the window frame fan, thereby realizing split installation of two parts of the hinge, the positioning rod is clamped on the frame fixing rod, the installation of the hinge is completed, the window fan can be inclined when falling inwards, and installation is facilitated, the frame fixing seat and the fan fixing block of the hinge are respectively installed on the frame fan and the profile during installation, and then the frame fixing seat and the fan fixing block are assembled, the split installation design of the in-opening and in-falling hinge makes the structure of the entire in-opening and in-falling hinge more compact, thereby improving the bearing capacity of the hinge, making the hinge applicable to the installation of heavy-duty windows, and prolonging the service life of the in-opening and in-falling hinge.

[0018] Other advantages, objects and features of the utility model will be embodied partly through the following description, and will be understood by those skilled in the art through research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic view of the utility model.

[0020] Figure 2 It is the top view of the utility model.

[0021] Figure 3 It is Figure 2 The sectional view of A-A direction in figure.

[0022] Figure 4 It is Figure 2 The structure schematic view of B part in figure.

[0023] Figure 5 It is the side view of the utility model.

[0024] Figure 6 It is Figure 1 The installation structure schematic view of adjusting assembly in figure.

[0025] Figure 7 It is Figure 1 The sectional structure schematic view of adjusting assembly in figure.

[0026] In the drawing: 1, frame fixed seat;2, frame fixed rod;3, positioning rod;4, oval hole;5, first rivet;6, spring;7, long connecting rod;8, pin shaft;9, shaft sleeve;10, fan fixed block;11, second rivet;12, adjusting seat;13, internal hexagon countersunk head screw;14, square nut;15, adjusting sliding block;16, adjusting block;17, strip-shaped hole;18, internal hexagonal cylindrical head screw;19, positioning plate;20, internal hexagonal taper end set screw;21, sleeve;22, connecting piece;23, rotating plate;24, third rivet;25, washer;26, first limiting block;27, second limiting block. DETAILED DESCRIPTION

[0027] The utility model will be further explained in connection with the drawings below.

[0028] As Figures 1-7 Shown, a high bearing invisible inner open inner downward hinge, including frame fixed seat 1, the side wall riveting has frame fixed rod 2 on frame fixed seat 1 upper side, the upper side of frame fixed rod 2 is riveted with positioning rod 3, the oval hole 4 is set up on frame fixed seat 1, the first rivet 5 is movably inserted in oval hole 4, the first rivet 5 is provided with spring 6, the long connecting rod 7 is rotatably sleeved outside first rivet 5, the long connecting rod 7 is located in the upper positioning rod 3, the pin shaft 8 is fixedly connected on long connecting rod 7, the shaft sleeve 9 is rotatably sleeved outside pin shaft 8, the fan fixed block 10 is fixedly connected outside shaft sleeve 9, the second rivet 11 is fixedly connected on long connecting rod 7, and the adjusting assembly is connected on second rivet 11.

[0029] In the above embodiment, when installing the window frame, the frame fixing seat 1 is installed in the groove of the profile, so that the hinge can be hidden in the groove of the profile, thereby realizing hidden installation without external leakage. The fan fixing block 10 is installed on the window frame fan, so that the two parts of the hinge can be installed separately. Then, the positioning rod 3 is clamped on the frame fixing rod 2, the installation of the hinge is completed, the window fan can be tilted when the window is opened inward, and the installation is convenient. When installing, only the frame fixing seat 1 and the fan fixing block 10 of the hinge are respectively installed on the frame and the profile, and then the two are assembled, the hinge is designed in a split type, the structure of the hinge is more compact, the load-bearing capacity of the hinge is improved, the hinge can be applied to the installation of heavy windows, and the service life of the hinge is improved.

[0030] The adjusting assembly comprises an adjusting seat 12 fixedly sleeved on the second rivet 11, and an adjusting sliding block 15 fixedly connected with the adjusting seat 12 through an internal hexagon countersunk head screw 13 and a square nut 14.

[0031] In the embodiment, the up-and-down overlap position of the hinge can be finely adjusted by adjusting the position of the adjusting sliding block 15, and the flexibility of the hinge installation is improved.

[0032] The frame fixing seat 1 is fixedly connected with an adjusting block 16, the frame fixing rod 2 is provided with a strip-shaped hole 17, the adjusting block 16 penetrates through the frame fixing rod 2 through the strip-shaped hole 17, an inclined screw hole is formed in the vertical side wall of the adjusting block 16, an internal hexagonal cylindrical head screw 18 is threadedly sleeved in the screw hole, and the internal hexagonal cylindrical head screw 18 is inclinedly arranged.

[0033] In the above embodiment, the installation position of the frame fixing seat 1 can be finely adjusted by rotating the internal hexagonal cylindrical head screw 18, so that the left-and-right overlap position of the lower part of the hinge can be finely adjusted, and the flexibility of the hinge installation is improved.

[0034] The right end of the frame fixing rod 2 is fixedly connected with a positioning plate 19, and the positioning plate 19 is perpendicular to the frame fixing rod 2.

[0035] In the above embodiment, the positioning plate 19 can be clamped into the profile groove, so that the hinge can be positioned, and the accuracy of the hinge installation is improved.

[0036] A plurality of internal hexagonal conical end set screws 20 are threadedly connected with the frame fixing seat 1, and the convenience of the installation of the frame fixing seat 1 is improved.

[0037] The fan fixing block 10 comprises a sleeve 21 fixedly sleeved outside the shaft sleeve 9, two connecting pieces 22 are fixedly connected to the vertical outer wall of the sleeve 21 in a symmetrical mode, the connecting pieces 22 are provided with fixing holes, and a rotating plate 23 is fixedly connected to the sleeve 21.

[0038] In the above embodiment, the connecting pieces 22 and the fixing holes can improve the convenience of connecting the fan fixing block 10 with the window frame and improve the convenience of installing the hinge.

[0039] The frame fixing seat 1 is fixedly connected with a plurality of third rivets 24, and the frame fixing rod 2 is fixed to the frame fixing seat 1 through the plurality of third rivets 24.

[0040] In the embodiment, the third rivets 24 can improve the convenience and stability of connecting the frame fixing seat 1 with the frame fixing rod 2.

[0041] A gasket 25 is movably sleeved on each of the third rivets 24.

[0042] In the above embodiment, the gasket 25 can improve the stability of installing the third rivet 24.

[0043] The frame fixing seat 1 is fixedly connected with a first limiting block 26 for limiting the frame fixing rod 2.

[0044] In the embodiment, the first limiting block 26 can limit the rotating range of the frame fixing rod 2, so that the problem of damaging the hinge caused by excessive rotation of the frame fixing rod 2 can be prevented.

[0045] The side wall of the upper side of the long connecting rod 7 is fixedly connected with a second limiting block 27 for limiting the rotating plate 23.

[0046] In the above embodiment, the second limiting block 27 can limit the rotating plate 23, so that the rotating range of the fan fixing block 10 can be limited.

[0047] The working principle of the utility model is:

[0048] When installing the window frame, the frame fixing seat 1 is installed in the groove of the section bar, so that the hinge can be hidden in the groove of the section bar, thus realizing hidden installation without external leakage. The fan fixing block 10 is installed on the window frame fan, so that the two parts of the hinge can be installed separately. Then, the positioning rod 3 is clamped on the frame fixing rod 2, the installation of the hinge is completed, the window fan can be tilted when being installed inward, and the installation is convenient. When installing, only the frame fixing seat 1 and the fan fixing block 10 of the hinge are respectively installed on the frame and the section bar, and then the two are assembled, the position of the hinge can be adjusted by adjusting the position of the adjusting sliding block 15, the installation position of the frame fixing seat 1 can be adjusted by screwing the inner hexagonal cylindrical head screw 18, so that the left and right overlap positions of the lower part of the hinge can be adjusted. The split type installation design of the inward opening and inward tilting hinge makes the structure of the entire inward opening and inward tilting hinge more compact, so as to improve the load bearing performance of the hinge, make the hinge suitable for the installation of heavy duty windows, and improve the service life of the inward opening and inward tilting hinge.

[0049] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application.

[0050] Although the terms 1, frame fixing seat; 2, frame fixing rod; 3, positioning rod; 4, oval hole; 5, first rivet; 6, spring; 7, long connecting rod; 8, pin shaft; 9, shaft sleeve; 10, fan fixing block; 11, second rivet; 12, adjusting seat; 13, inner hexagonal countersunk head screw; 14, square nut; 15, adjusting sliding block; 16, adjusting block; 17, strip-shaped hole; 18, inner hexagonal cylindrical head screw; 19, positioning plate; 20, inner hexagonal taper end set screw; 21, sleeve; 22, connecting piece; 23, rotating plate; 24, third rivet; 25, washer; 26, first limiting block; 27, second limiting block are used more in this article, but the possibility of using other terms is not excluded. Using these terms is only to more conveniently describe and explain the essence of the present application, and it is contrary to the spirit of the present application to interpret them as any kind of additional limitation.

Claims

1. A high load capacity concealed in-out and in-down hinge comprising a frame fixing seat (1), characterized in that, The side wall of the frame fixing seat (1) is riveted with a frame fixing rod (2), the upper side of the frame fixing rod (2) is pivotally riveted with a positioning rod (3), an oval hole (4) is formed in the frame fixing seat (1), a first rivet (5) is movably inserted into the oval hole (4), a spring (6) is arranged in the first rivet (5), a long connecting rod (7) is pivotally arranged outside the first rivet (5), the long connecting rod (7) is located above the positioning rod (3), a pin shaft (8) is fixedly connected to the long connecting rod (7), a shaft sleeve (9) is pivotally arranged outside the pin shaft (8), a fan fixing block (10) is fixedly connected to the shaft sleeve (9), a second rivet (11) is fixedly connected to the long connecting rod (7), and an adjusting assembly is connected to the second rivet (11).

2. A high load capacity concealed in-swinging and out-swinging hinge according to claim 1, characterized in that, The adjusting assembly comprises an adjusting seat (12) fixedly sleeved on the second rivet (11), and an adjusting sliding block (15) is fixedly connected to the adjusting seat (12) through an internal hexagon countersunk head screw (13) and a square nut (14).

3. A high load capacity concealed in-swinging and out-swinging hinge according to claim 2, characterized in that, An adjusting block (16) is fixedly connected to the upper side of the frame fixing seat (1), a strip-shaped hole (17) is formed in the frame fixing rod (2), the adjusting block (16) penetrates through the frame fixing rod (2) through the strip-shaped hole (17), an inclined screw hole is formed in the vertical side wall of the adjusting block (16), an internal hexagonal cylindrical head screw (18) is threadedly sleeved in the screw hole, and the internal hexagonal cylindrical head screw (18) is inclined.

4. A high load capacity concealed in-swinging and out-swinging hinge according to claim 3, characterized in that, A positioning plate (19) is fixedly connected to the right end of the frame fixing rod (2), and the positioning plate (19) is perpendicular to the frame fixing rod (2).

5. A high load capacity concealed in-swinging and out-swinging hinge according to claim 4, characterized in that, A plurality of internal hexagonal tapered end set screws (20) are threadedly connected to the frame fixing seat (1).

6. A high load capacity concealed in-swinging and out-swinging hinge according to claim 5, characterized in that, The fan fixing block (10) comprises a sleeve (21) fixedly sleeved outside the shaft sleeve (9), two connecting pieces (22) are fixedly connected to the vertical outer wall of the sleeve (21) in a symmetrical manner, a fixed hole is formed in the connecting piece (22), a rotating plate (23) is fixedly connected to the sleeve (21), and the rotating plate (23) is located above the long connecting rod (7).

7. A high load capacity concealed in-swinging and out-swinging hinge according to claim 6, characterized in that, A plurality of third rivets (24) are fixedly connected to the frame fixing seat (1), and the frame fixing rod (2) is fixed to the frame fixing seat (1) through the plurality of third rivets (24).

8. A high load capacity concealed in-swinging and out-swinging hinge according to claim 7, characterized in that, A gasket (25) is movably sleeved on each of the plurality of third rivets (24).

9. A high load capacity concealed in-swinging and out-swinging hinge according to claim 8, characterized in that, A first limiting block (26) for limiting the frame fixing rod (2) is fixedly connected in the frame fixing seat (1).

10. A high load capacity concealed in-swinging and out-swinging hinge according to claim 9, characterized in that, A second limiting block (27) for limiting the rotating plate (23) is fixedly connected to the side wall of the upper side of the long connecting rod (7).