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

The concealed inward-opening and tilting hinges with high load-bearing capacity, along with the riveted components forming a stable structure, solve the problem of poor opening and closing of heavy windows and achieve a beautiful, wear-resistant, and high load-bearing effect.

CN224149381UActive Publication Date: 2026-04-21XINGSANXING CLOUD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINGSANXING CLOUD TECH CO LTD
Filing Date
2025-02-14
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing concealed inward opening and tilting systems are not suitable for heavy-duty windows, and are prone to deformation, difficulty in opening and closing, corner damage, or even detachment after repeated opening and closing.

Method used

The concealed inward-opening and tilting hinge, designed with high load-bearing capacity, is connected by rivets from components such as long tie rods, fan fixing seats, aluminum rods, sliders, and short tie rods to form a stable structure that is hidden inside the profile groove, ensuring both aesthetics and wear resistance.

Benefits of technology

The high-load-bearing, concealed inward-opening and tilt-and-turn hinges are suitable for heavy-duty windows, ensuring normal opening and closing even after multiple uses, preventing corner chipping and wear, and maintaining aesthetics.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224149381U_ABST
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Abstract

The utility model belongs to the technical field of building door and window curtain wall hardware, and particularly relates to a high-load-bearing invisible inward-opening and inward-falling upper hinge. The window frame comprises a long pull rod, a sash fixing base, an aluminum rod, a sash fixing block, a sliding block and a short pull rod are arranged below one side of the long pull rod, a small connector, a second large connector and a first large connector are arranged at the two ends of the aluminum rod respectively, and a long connecting rod, a positioning rod and a frame fixing rod are arranged above the other section of the long pull rod. After being installed, the window sash is completely hidden in the notch of the section bar, no hinge exposed part exists on the outer vertical face, and the attractiveness of the whole window sash is not affected whether the window sash is closed, opened or turned inwards; due to the characteristic of high bearing capacity, the window can be adapted to a heavier double-layer glass soundproof window and a wider ultra-large window; the main body made of the high-quality stainless steel material and the excellent structural design enable the product to have ultra-long service life, the function can still be normally realized after the product is used for many times, and the conditions of corner falling, abrasion and unsmooth inner falling are avoided.
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Description

Technical Field

[0001] This utility model belongs to the technical field of building door, window and curtain wall hardware, and relates to a high load-bearing concealed inward opening and tilting hinge. Background Technology

[0002] A hinge, also known as a hinge leaf, is a component that connects two parts of an object and allows them to move. Common hinges are used for cabinet doors, windows, etc. While many existing concealed inward-opening and tilt-and-turn systems exist, most are unsuitable for heavy-duty windows. Tilting inwards on heavy windows places a significant load on the hinges, and repeated opening and closing or switching between inward and tilt-and-turn can easily cause deformation, leading to problems such as difficulty in opening and closing, corner chipping, or even detachment. Therefore, this paper proposes a high-load-bearing concealed inward-opening and tilt-and-turn hinge to address these issues. Utility Model Content

[0003] The purpose of this utility model is to address the above-mentioned problems by providing a high-load-bearing, concealed, inward-opening, inward-tilting hinge.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-load-bearing, concealed, inward-opening, tilt-down hinge includes a long pull rod. A fan mounting base is located at one end of the long pull rod, and a slider and an aluminum rod are respectively installed inside the fan mounting base. Rivets are inserted into the long pull rod, the fan mounting base, and the slider. A fan mounting block and an aluminum rod are respectively installed inside the outer end of the fan mounting base, and a first screw is inserted between the side of the fan mounting base and the side of the fan mounting block. Second screws are inserted into the other end of the fan mounting base, the fan mounting block, and the aluminum rod. A small connector is fitted onto one end of the aluminum rod, and a second large connector and a first large connector are sequentially fitted onto the other end of the aluminum rod. A lock is inserted between the second large connector and the long pull rod. The components include a locking bushing and a first large connector. A rivet is inserted between the first large connector and the aluminum rod. A short pull rod and a long pull rod are respectively provided above the other end of the fan fixing seat. A rivet is inserted between the fan fixing seat and the short pull rod. A rivet is also inserted between the other end of the short pull rod and the long pull rod. A long connecting rod, a positioning rod, and a frame fixing rod are respectively provided above the other section of the long pull rod. A rivet is provided between one end of the long connecting rod and one end of the frame fixing rod. A rivet is also provided between the other end of the long connecting rod and the long pull rod. A rivet is provided between one end of the positioning rod and the middle of the long pull rod and the other end of the positioning rod and the frame fixing rod.

[0006] In the aforementioned high-load-bearing concealed inward-opening and inward-tilting hinge, the long pull rod, the fan fixing seat, and the aluminum rod are placed on the same vertical line, and a slider is inserted into the fan fixing seat. At the same time, a fixing rivet is inserted between the slider, the fan fixing seat, and the long pull rod. The slider and the aluminum rod are tightly fitted together, and the head of the rivet is placed inside the bottom of the slider.

[0007] In the aforementioned high-load-bearing concealed inward-opening and inward-tilting hinge, the fan fixing block is inserted into the outer end of the fan fixing seat, and the fan fixing block is placed above the aluminum rod and fits tightly. At the same time, the fan fixing seat, the fan fixing block and the aluminum rod are fixedly connected by a second screw. There is a distance between the fan fixing block and the slider, and the end face of the fan fixing block and the end face of the fan fixing seat are obliquely inserted with a first screw for fixed connection.

[0008] In the aforementioned high-load-bearing concealed inward-opening and inward-tilting hinge, a fixed connecting rivet is inserted between the inner end of the fan fixing seat and one end of the short pull rod, and a fixed connecting rivet is inserted between the other end of the short pull rod and the middle of the long pull rod. At the same time, the short pull rod is placed between the long pull rod and the fan fixing seat.

[0009] In the aforementioned high-load-bearing concealed inward-opening and inward-tilting hinge, one end of the aluminum rod is inserted into the lower part of the fixed connection small connector, and the other end of the aluminum rod is sequentially inserted into the fixed connection second large connector and the first large connector. At the same time, a fixed connection locking point and a locking point bushing are inserted between the upper part of the second large connector and the long pull rod.

[0010] In the aforementioned high-load-bearing concealed inward-opening and inward-tilting hinge, the other end of the long tie rod is provided with a step, and the upper part of the step is aligned with the horizontal section of the long connecting rod, positioning rod, and frame fixing rod on the same vertical line.

[0011] In the aforementioned high-load-bearing concealed inward-opening and inward-tilting hinge, a rotating connecting rivet is inserted between one end of the long connecting rod and the horizontal section of the frame fixing rod, and a rotating connecting rivet is inserted between the other end of the long connecting rod and the long tie rod.

[0012] In the aforementioned high-load-bearing concealed inward-opening and inward-tilting hinge, a fixed connecting rivet is inserted into one end of the positioning rod, and the middle part of the rivet passes through the opening at one end of the long connecting rod. At the same time, a sliding connecting long pull rod is inserted below the rivet.

[0013] In the aforementioned high-load-bearing concealed inward-opening and inward-tilting hinge, a rotating connecting rivet is inserted between the middle of the positioning rod and the middle of the long connecting rod, and a copper washer is provided on the outer sleeve of the rivet. A rotating connecting rivet is inserted between the other end of the positioning rod and the other end of the horizontal section of the frame fixing rod, and a square pad is provided on the protruding end of the rivet.

[0014] In the aforementioned high-load-bearing concealed inward-opening and inward-tilting hinge, a fixed connecting tapered screw is inserted into the vertical section of the frame fixing rod.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] This utility model features a sash fixing seat and an aluminum rod on one side of a long pull rod, with a sash fixing block and a slider between the sash fixing seat and the aluminum rod. A short pull rod is located between the middle of the long pull rod and the other end of the sash fixing seat. Small connectors, a second large connector, and a first large connector are located at both ends of the aluminum rod. A long connecting rod, a positioning rod, and a frame fixing rod are located on the upper part of the other section of the long pull rod. The vertical section of the frame fixing rod has a tapered screw. The long pull rod, long connecting rod, positioning rod, and frame fixing rod are connected by rivets. After installation, the entire structure is concealed within the profile groove, with no exposed hinges on the exterior facade. Whether closed, open, or tilted inwards, the overall aesthetics of the window sash are not affected. Its high load-bearing capacity allows it to be adapted to heavier double-glazed soundproof windows and wider extra-large windows. The high-quality stainless steel body and superior structural design give the product an exceptionally long service life, ensuring normal function even after multiple uses without corner chipping, wear, or uneven tilting.

[0017] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of the present invention;

[0019] Figure 2 This is a schematic cross-sectional view of the present invention;

[0020] Figure 3 This is an enlarged schematic diagram of point A of this utility model;

[0021] Figure 4 This is an enlarged schematic diagram of section B of this utility model;

[0022] Figure 5 This is a schematic diagram of the overall structure of this utility model.

[0023] In the diagram: 1. Long tie rod; 2. Long connecting rod; 3. Positioning rod; 4. Short tie rod; 5. Frame fixing rod; 6. Aluminum rod; 7. Square pad; 8. Fan fixing seat; 9. Fan fixing block; 10. Small connector; 11. First large connector; 12. Second large connector; 13. Slider; 14. Rivet; 15. Locking point component; 16. Locking point bushing; 17. First screw; 18. Second screw; 19. Conical end screw; 20. Copper washer. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-5As shown, a high-load-bearing, concealed inward-opening and inward-tilting top hinge includes a long pull rod 1. A fan fixing seat 8 is located at one end of the long pull rod 1, and a slider 13 and an aluminum rod 6 are respectively installed inside the fan fixing seat 8. Rivets 14 are inserted into the long pull rod 1, the fan fixing seat 8, and the slider 13. A fan fixing block 9 and the aluminum rod 6 are respectively installed inside the outer end of the fan fixing seat 8, and a first screw 17 is inserted between the side of the fan fixing seat 8 and the fan fixing block 9. Second screws 18 are inserted into the other end of the fan fixing seat 8, the fan fixing block 9, and the aluminum rod 6. A small connector 10 is fitted onto one end of the aluminum rod 6, and a second large connector 12 and a first large connector 11 are respectively fitted onto the other end of the aluminum rod 6. A locking point is inserted between the second large connector 12 and the long pull rod 1. 15. Locking bushing 16, and rivets 14 are inserted between the first large connector 11 and the aluminum rod 6. A short pull rod 4 and a long pull rod 1 are respectively provided above the other end of the fan fixing seat 8. A rivet 14 is inserted between the fan fixing seat 8 and the short pull rod 4. A rivet 14 is also inserted between the other end of the short pull rod 4 and the long pull rod 1. A long connecting rod 2, a positioning rod 3 and a frame fixing rod 5 are respectively provided above the other section of the long pull rod 1. A rivet 14 is provided between one end of the long connecting rod 2 and one end of the frame fixing rod 5. A rivet 14 is also provided between the other end of the long connecting rod 2 and the long pull rod 1. A rivet 14 is provided between one end of the positioning rod 3 and the middle of the long pull rod 1 and the long connecting rod 2. A rivet 14 is also provided between the other end of the positioning rod 3 and the frame fixing rod 5.

[0026] In this embodiment, the long pull rod 1, the fan fixing seat 8 and the aluminum rod 6 are placed on the same vertical line, and the slider 13 is inserted into the fan fixing seat 8. At the same time, a fixing rivet 14 is inserted between the slider 13, the fan fixing seat 8 and the long pull rod 1. The slider 13 and the aluminum rod 6 are tightly fitted together, and the head of the rivet 14 is placed inside the bottom of the slider 13.

[0027] Furthermore, the fan fixing block 9 is inserted into the outer end of the fan fixing seat 8, and the fan fixing block 9 is placed above the aluminum rod 6 and fits tightly. At the same time, the fan fixing seat 8, the fan fixing block 9 and the aluminum rod 6 are fixedly connected by a second screw 18. There is a distance between the fan fixing block 9 and the slider 13, and the end face of the fan fixing block 9 and the end face of the fan fixing seat 8 are obliquely inserted with a first screw 17 for fixing.

[0028] Furthermore, a fixing rivet 14 is inserted between the inner end of the fan mounting base 8 and one end of the short pull rod 4, and a fixing rivet 14 is inserted between the other end of the short pull rod 4 and the middle of the long pull rod 1, while the short pull rod 4 is placed between the long pull rod 1 and the fan mounting base 8.

[0029] Below the long tie rod 1, there are fan fixing seats 8 and aluminum rods 6 respectively. The aluminum rods 6 and fan fixing seats 8 are fixed to the frame. At the same time, fan fixing blocks 9 and sliders 13 are respectively provided between the fan fixing seats 8 and aluminum rods 6 to enhance the load-bearing capacity of the middle part of the entire structure. Meanwhile, the short tie rods 4 provided between the fan fixing seats 8 and the long tie rod 1 provide support for the middle part of the long tie rod 1.

[0030] Furthermore, one end of the aluminum rod 6 is inserted into the lower part of the fixed connection small connector 10, and the other end of the aluminum rod 6 is sequentially inserted into the fixed connection second large connector 12 and the first large connector 11. At the same time, the fixed connection locking point 15 and locking point bushing 16 are inserted between the upper part of the second large connector 12 and the long pull rod 1.

[0031] The small connector 10, the second large connector 12, and the first large connector 11 at both ends of the aluminum rod 6 fix the aluminum rod 6 to the frame, making the whole structure stable and firm, and straightening both ends.

[0032] Furthermore, the other end of the long tie rod 1 is provided with a step, and the upper part of the step is aligned with the horizontal section of the long connecting rod 2, the positioning rod 3, and the frame fixing rod 5 on the same vertical line.

[0033] Furthermore, a rotating connecting rivet 14 is inserted above one end of the long connecting rod 2 and into the horizontal section of the frame fixing rod 5, and a rotating connecting rivet 14 is also inserted between the other end of the long connecting rod 2 and the long tie rod 1.

[0034] Furthermore, a fixed connecting rivet 14 is inserted into one end of the positioning rod 3, and the middle part of the rivet 14 passes through the opening at one end of the long connecting rod 2. At the same time, a sliding connecting long pull rod 1 is inserted below the rivet 14.

[0035] Furthermore, a rotating connecting rivet 14 is inserted between the middle of the positioning rod 3 and the middle of the long connecting rod 2, and a copper washer 20 is provided on the outer sleeve of the rivet 14. A rotating connecting rivet 14 is inserted between the other end of the positioning rod 3 and the other end of the horizontal section of the frame fixing rod 5, and a square pad 7 is provided on the protruding end of the rivet 14.

[0036] Above the other end of the long pull rod 1, there are a long connecting rod 2, a positioning rod 3 and a frame fixing rod 5 respectively, and they are fixed to each other by rivets 14. The frame fixing rod 5 is connected to the frame at the other end. When opening and closing, the frame fixing rod 5 will be driven by the frame and then fixed by the rivets 14, so that the positions of the long connecting rod 2, the positioning rod 3 and the frame fixing rod 5 can be changed to the corresponding positions at will.

[0037] Furthermore, a fixing connecting cone end screw 19 is inserted into the vertical section of the frame fixing rod 5.

[0038] A tapered screw 19 is provided on the vertical section of the frame fixing rod 5 for fixing to another frame.

[0039] Working principle:

[0040] A fan mounting base 8 and an aluminum rod 6 are respectively provided on the lower side of one side of the long tie rod 1. A fan mounting block 9 and a slider 13 are respectively provided between the fan mounting base 8 and the aluminum rod 6. At the same time, a short tie rod 4 is provided between the middle of the long tie rod 1 and the other end of the fan mounting base 8. These components form the central support of the entire structure. A small connector 10, a second large connector 12, and a first large connector 11 are respectively provided at both ends of the aluminum rod 6. In this way, all the components on this side of the aluminum rod 6 are hidden in the profile groove when installed. A protrusion is provided on the short tie rod 4 to connect with the fan mounting base 8. Friction creates a damping sensation when tilting inwards, preventing impact and excessive load on the hinge during tilting. Above the other end of the long pull rod 1, there are a long connecting rod 2, a positioning rod 3, and a frame fixing rod 5. The vertical section of the frame fixing rod 5 is connected to another frame using a tapered screw 19. The long pull rod 1, long connecting rod 2, positioning rod 3, and frame fixing rod 5 are connected in pairs by rivets 14. With the cooperation of rivets 14, wear resistance is ensured to prevent the stainless steel from seizing, allowing the product to open and close smoothly.

[0041] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0042] Although this document frequently uses terms such as 1. long tie rod; 2. long connecting rod; 3. positioning rod; 4. short tie rod; 5. frame fixing rod; 6. aluminum rod; 7. square pad; 8. fan fixing seat; 9. fan fixing block; 10. small connecting head; 11. first large connecting head; 12. second large connecting head; 13. slider; 14. rivet; 15. locking point component; 16. locking point bushing; 17. first screw; 18. second screw; 19. tapered end screw; 20. copper washer, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A high load capacity concealed in-swinging and in-swinging out upper hinge comprising a long pull rod (1), characterized in that: The long pull rod (1) has a fan fixing seat (8) at one end, and a slider (13) and an aluminum rod (6) are respectively provided in the fan fixing seat (8). At the same time, rivets (14) are inserted into the long pull rod (1), the fan fixing seat (8) and the slider (13). A fan fixing block (9) and an aluminum rod (6) are respectively provided in the outer end of the fan fixing seat (8). A first screw (17) is inserted between the side of the fan fixing seat (8) and the fan fixing block (9). At the same time, a second screw (18) is inserted into the other end of the fan fixing seat (8), the fan fixing block (9) and the aluminum rod (6). A small connector (10) is sleeved on one end of the aluminum rod (6). A second large connector (12) and a first large connector (11) are respectively sleeved on the other end of the aluminum rod (6). A locking point (15) and a locking point bushing (16) are inserted between the second large connector (12) and the long pull rod (1). A rivet (14) is inserted between the first large connector (11) and the aluminum rod (6). A short pull rod (4) and a long pull rod (1) are respectively provided above the other end of the fan fixing seat (8). A rivet (14) is inserted between the fan fixing seat (8) and the short pull rod (4). A rivet (14) is also inserted between the other end of the short pull rod (4) and the long pull rod (1). A long connecting rod (2), a positioning rod (3) and a frame fixing rod (5) are respectively provided above the other section of the long pull rod (1). A rivet (14) is provided between one end of the long connecting rod (2) and one end of the frame fixing rod (5). A rivet (14) is also provided between the other end of the long connecting rod (2) and the long pull rod (1). A rivet (14) is provided between one end of the positioning rod (3) and the middle of the long pull rod (1) and the long connecting rod (2). A rivet (14) is also provided between the other end of the positioning rod (3) and the frame fixing rod (5).

2. A high load capacity concealed in-swinging in-swinging out-swinging upper hinge according to claim 1, characterized in that: The long pull rod (1), the fan fixing seat (8) and the aluminum rod (6) are placed on the same vertical line, and the slider (13) is inserted into the fan fixing seat (8). At the same time, a fixed connecting rivet (14) is inserted between the slider (13), the fan fixing seat (8) and the long pull rod (1). The slider (13) and the aluminum rod (6) are closely fitted, and the head of the rivet (14) is placed inside the bottom of the slider (13).

3. A high load capacity concealed in-swinging in-swinging out-swinging up hinge according to claim 2, characterized in that: The fan fixing block (9) is inserted into the outer end of the fan fixing seat (8), and the fan fixing block (9) is placed above the aluminum rod (6) and fits tightly. At the same time, the fan fixing seat (8), the fan fixing block (9) and the aluminum rod (6) are fixedly connected by a second screw (18). There is a distance between the fan fixing block (9) and the slider (13), and the end face of the fan fixing block (9) and the end face of the fan fixing seat (8) are obliquely inserted with a first screw (17).

4. A high load capacity concealed in-swinging in-swinging out-swinging up hinge according to claim 3, characterized in that: A fixing rivet (14) is inserted between the inner end of the fan fixing seat (8) and one end of the short pull rod (4), and a fixing rivet (14) is inserted between the other end of the short pull rod (4) and the middle part of the long pull rod (1). At the same time, the short pull rod (4) is placed between the long pull rod (1) and the fan fixing seat (8).

5. A high load capacity concealed in-swinging in-swinging out in-out hinged door hinge according to claim 4, characterized in that: One end of the aluminum rod (6) is inserted into the lower part of the fixed connection small connector (10), and the other end of the aluminum rod (6) is sequentially inserted into the fixed connection second large connector (12) and the first large connector (11). At the same time, a fixed connection locking point (15) and a locking point bushing (16) are inserted between the upper part of the second large connector (12) and the long pull rod (1).

6. A high load capacity concealed in-swinging in-swinging out in-out hinged door hinge according to claim 5, characterized in that: The other end of the long tie rod (1) is provided with a step, and the upper part of the step is on the same vertical line as the horizontal section of the long connecting rod (2), the positioning rod (3), and the frame fixing rod (5).

7. A high load capacity concealed in-swinging in-swinging out in-out hinged door hinge according to claim 6, characterized in that: A rotating connecting rivet (14) is inserted above one end of the long connecting rod (2) and into one end of the horizontal section of the frame fixing rod (5), and a rotating connecting rivet (14) is inserted between the other end of the long connecting rod (2) and the long tie rod (1).

8. A high load capacity concealed in-swinging in-swinging out in-out hinged door according to claim 7, characterized in that: A fixed connecting rivet (14) is inserted into one end of the positioning rod (3), and the middle part of the rivet (14) passes through the opening at one end of the long connecting rod (2). At the same time, a sliding connecting long pull rod (1) is inserted below the rivet (14).

9. A high-load-bearing, concealed, inward-opening, tilt-down hinge according to claim 8, characterized in that: A rotating connecting rivet (14) is inserted between the middle of the positioning rod (3) and the middle of the long connecting rod (2), and a copper washer (20) is provided on the outer sleeve of the rivet (14). A rotating connecting rivet (14) is inserted between the other end of the positioning rod (3) and the other end of the horizontal section of the frame fixing rod (5), and a square pad (7) is provided on the protruding end of the rivet (14).

10. A high load capacity concealed in-swinging in-swinging out in-out hinged door according to claim 9, characterized in that: A fixed connecting cone-end screw (19) is inserted into the vertical section of the frame fixing rod (5).