Concealed three-dimensional hinge for home-entry armored door

Abstract

The utility model relates to the technical field of hinges, in particular to a concealed three-dimensional hinge of a home-entry armored door, which comprises a bearing plate, a rotating plate and a fixed frame, the bearing plate is mounted on a door leaf, one end of the bearing plate is rotatably connected with one end of the rotating plate, one side of the rotating plate is connected with the fixed frame, the fixed frame is mounted on a door frame, and the rotating plate is mounted on the door frame. The fixed frame is connected with a nut plate, the nut plate is located between the fixed frame and the door frame, and the fixed frame, the bearing plate and the nut plate are matched with one another to achieve multi-dimensional adjustment of the hinge. In the process of installing the door leaf, if the gap or the angle between the door leaf and the door frame has deviation, the position relation between the door leaf and the door frame can be very conveniently adjusted through mutual cooperation of the bearing plate, the rotating plate, the fixed frame and the nut plate, the installation difficulty is reduced, and the installation efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of hinge technology, and in particular to a concealed three-dimensional hinge for an armored door. Background Technology

[0002] In the fields of modern architecture and home security, armored doors are highly favored for their high strength, fire resistance, and burglarproof features. Armored doors not only have excellent security performance, but also meet certain standards in terms of aesthetics and practicality. However, the hinges of armored doors, as key components connecting the door leaf and the door frame, directly affect the overall effect and security.

[0003] Currently, the most common armored door hinges on the market are flag hinges and cross hinges. While these hinges meet the basic usage requirements of armored doors to a certain extent, some significant problems still exist in actual use and installation. For example, flag hinges and cross hinges cannot or can only achieve adjustment in a single dimension, resulting in a small tolerance. This makes adjustment very difficult if there are deviations in the gap or angle between the door leaf and the door frame during installation, increasing the difficulty of installation. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this application is to provide a concealed three-dimensional hinge for an entrance armored door, which solves the problem mentioned in the background art that existing hinges cannot achieve multi-dimensional adjustment and have a small tolerance rate. This makes it very difficult to adjust if there is a gap or angular deviation between the door and the door frame during installation, thus increasing the difficulty of installation.

[0005] The above-mentioned objective of this application is achieved through the following technical solution: a concealed three-dimensional hinge for an armored door, comprising a support plate, a rotating plate, and a fixed frame. The support plate is installed on the door leaf, one end of the support plate is rotatably connected to one end of the rotating plate, one side of the rotating plate is connected to the fixed frame, the fixed frame is installed on the door frame, and a nut plate is connected to the fixed frame. The nut plate is located between the fixed frame and the door frame. The multi-dimensional adjustment of the hinge is achieved through the cooperation of the fixed frame, the support plate, and the nut plate.

[0006] In a further optimized design, countersunk holes are provided at all four corners of the fixed frame. These countersunk holes are elongated and horizontally oriented. Countersunk screws are installed in these countersunk holes and are threaded onto the door frame.

[0007] The design was further optimized so that the length of the countersunk head waist hole is 3mm.

[0008] In a further optimized design, the rotating plate has multiple countersunk holes, and a first adjusting screw is threaded into each countersunk hole. The first adjusting screw is located between the rotating plate and the nut plate, and a through hole is provided in the center of the first adjusting screw. The fixed frame has a first adjusting through hole that matches the countersunk holes. The first adjusting through hole and the countersunk holes are interconnected. A countersunk screw is installed in the countersunk hole, and the countersunk screw passes through the rotating plate, the first adjusting screw, the fixed frame, and the nut plate in sequence and is threadedly connected.

[0009] The scheme was further optimized so that the adjustment distance of the first adjusting screw was 4mm.

[0010] In a further optimized design, the first adjustment through hole is elongated and vertically positioned. The nut plate has multiple second adjustment through holes, each elongated and vertically positioned. A stepped screw is installed inside the second adjustment through hole, and the stepped screw passes through the second adjustment through hole and is threadedly connected to the fixed frame. Threaded holes are provided on both the upper and lower sides of the rotating plate, and second adjustment screws are threadedly connected inside the threaded holes. The other end of the second adjustment screw abuts against the fixed frame.

[0011] The solution was further optimized so that the adjustment distance of the second adjusting screw was 4mm.

[0012] In a further optimized design, a connecting assembly is installed between the support plate and the rotating plate. The connecting assembly includes an annular connecting part fixedly installed at the upper and lower ends of the support plate and a sleeve fixedly installed on the rotating plate. The sleeve is disposed between the two connecting parts, and a pin is installed in the inner cavity of the connecting part and the sleeve.

[0013] In a further optimized design, both ends of the sleeve are provided with planar thrust ball bearings, the other side of the planar thrust ball bearings abuts against the connecting part, the planar thrust ball bearings are sleeved on the pin, and a bushing containing a shaft is installed inside the sleeve, the bushing being sleeved on the pin.

[0014] In summary, this application includes at least the following beneficial technical effects:

[0015] The three-dimensional hinge of this utility model application is provided with a load-bearing plate, a rotating plate, a fixed frame, and a nut plate. During the installation of the door, if there is a deviation in the gap or angle between the door leaf and the door frame, the positional relationship between the door leaf and the door frame can be easily adjusted in multiple dimensions by the cooperation of the load-bearing plate, the rotating plate, the fixed frame, and the nut plate, which reduces the difficulty of installation and improves the installation efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in the embodiment;

[0017] Figure 2 yes Figure 1 Another perspective illustration;

[0018] Figure 3 This is an exploded view of part of the structure in the embodiment;

[0019] Figure 4 It is a cross-sectional view of the overall structure and some parts of the structure;

[0020] Figure 5 yes Figure 4 A magnified view of point A in the middle.

[0021] Reference numerals: 1. Bearing plate; 10. Connecting part; 2. Rotating plate; 20. Countersunk hole; 21. Threaded hole; 22. Sleeve; 23. Countersunk screw; 3. Fixing frame; 30. Countersunk hole; 31. First adjusting through hole; 4. Nut plate; 40. Second adjusting through hole; 41. Stepped screw; 5. First adjusting screw; 6. Second adjusting screw; 7. Flat thrust ball bearing; 8. Oil-impregnated bushing; 9. Pin. Detailed Implementation

[0022] The present application will be further described in detail below with reference to the accompanying drawings.

[0023] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the application.

[0024] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Example, refer to Figure 1 , Figure 2 and Figure 5A concealed three-dimensional hinge for an armored entrance door includes a support plate 1, a rotating plate 2, and a fixed frame 3. The support plate 1 has multiple countersunk holes 20 for mounting to the door leaf using countersunk screws 23. One end of the support plate 1 is rotatably connected to one end of the rotating plate 2, and one side of the rotating plate 2 is connected to the fixed frame 3. The fixed frame 3 is mounted on the door frame, and a nut plate 4 is connected to the fixed frame 3, located between the fixed frame 3 and the door frame. The hinge can be adjusted in multiple dimensions through the cooperation of the fixed frame 3, the support plate 1, and the nut plate 4. During door installation, if there is a deviation in the gap or angle between the door leaf and the door frame, the positional relationship between the door leaf and the door frame can be easily adjusted in multiple dimensions through the cooperation of the support plate 1, the rotating plate 2, the fixed frame 3, and the nut plate 4, reducing installation difficulty and improving installation efficiency.

[0026] In the embodiments disclosed herein, countersunk holes 30 are provided at each of the four corners of the fixed frame 3. The countersunk holes 30 are elongated and horizontally oriented. Countersunk screws 23 are installed in the countersunk holes 30 and are threaded onto the door frame. Through the cooperation of the countersunk screws 23 and the countersunk holes 30, the position of the fixed frame 3 relative to the door frame can be adjusted horizontally.

[0027] Specifically, the countersunk hole 30 is 3mm long. This allows the horizontal adjustment range of the door leaf adjustment distance to reach ±3mm.

[0028] In the embodiments disclosed herein, the rotating plate 2 has three countersunk holes 20 arranged in a triangular pattern. A first adjusting screw 5 is threaded into each countersunk hole 20, located between the rotating plate 2 and the nut plate 4. The first adjusting screw 5 has a through hole at its center. The fixed frame 3 has a first adjusting through hole 31 that matches the countersunk holes 20, and the first adjusting through hole 31 communicates with the countersunk holes 20. A countersunk screw 23 is installed within each countersunk hole 20, and the countersunk screw 23 passes sequentially through the rotating plate 2, the first adjusting screw 5, the fixed frame 3, and is threadedly connected to the nut plate 4. During installation, if the distance between the rotating plate 2 and the fixed frame 3 needs to be adjusted, only the depth of the three first adjusting screws 5 within the countersunk holes 20 needs to be adjusted. This adjusts the flatness between the door leaf and the door frame.

[0029] Specifically, the adjustment distance of the first adjusting screw 5 is 4mm. This allows the adjustment range between the vertical surfaces on both sides of the door leaf and the door frame to reach ±4mm.

[0030] In the embodiments disclosed herein, the first adjusting through hole 31 is elongated and vertically arranged. The nut plate 4 has multiple second adjusting through holes 40, each elongated and vertically arranged. A stepped screw 41 is installed within each second adjusting through hole 40, passing through the second adjusting through hole 40 and threadedly connected to the fixed frame 3. Threaded holes 21 are provided on both the upper and lower sides of the rotating plate 2, with second adjusting screws 6 threadedly connected within each threaded hole 21. The other end of each second adjusting screw 6 abuts against the fixed frame 3. To adjust the positional relationship between the rotating plate 2 and the fixed frame 3, the depth of the second adjusting screws 6 at both ends of the rotating plate 2 entering the threaded holes 21 of the rotating plate 2 is adjusted. The vertical position of the rotating plate 2 and the fixed frame 3 can be adjusted by the cooperation of two second adjusting screws 6, thus adjusting the distance between the upper and lower ends of the door leaf and the door frame.

[0031] Specifically, the adjustment distance of the second adjusting screw 6 is 4mm. This allows the upper and lower ends of the door leaf to be adjusted within a range of ±4mm within the door frame.

[0032] In embodiments of this disclosure, reference is made to Figure 4 A connecting assembly is installed between the support plate 1 and the rotating plate 2. The connecting assembly includes an annular connecting part 10 fixedly installed at the upper and lower ends of the support plate 1 and a sleeve 22 fixedly installed on the rotating plate 2. The sleeve 22 is located between the two connecting parts 10. A pin 9 is installed in the inner cavity of the connecting part 10 and the sleeve 22. The two ends of the pin 9 are fixed to the connecting part 10 by riveting, so that the support plate 1 and the rotating plate 2 have only one degree of freedom of rotation.

[0033] Specifically, both ends of the sleeve 22 are provided with planar thrust ball bearings 7, the other side of the planar thrust ball bearings 7 abuts against the connecting part 10, the planar thrust ball bearings 7 are sleeved on the pin 9, and both ends of the inner side of the sleeve 22 are provided with stepped holes, and oil-impregnated bushings 8 are installed in the stepped holes, and the oil-impregnated bushings 8 are sleeved on the pin 9.

[0034] The use of a planar thrust ball bearing 7 and a bushing greatly improves the load-bearing capacity of the hinge, reduces frictional resistance, and ensures smooth opening and closing of the door.

[0035] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A concealed three-dimensional hinge for an armored entrance door, characterized in that, The device includes a support plate (1), a rotating plate (2), and a fixed frame (3). The support plate (1) is installed on the door leaf. One end of the support plate (1) is rotatably connected to one end of the rotating plate (2). One side of the rotating plate (2) is connected to the fixed frame (3). The fixed frame (3) is installed on the door frame. A nut plate (4) is connected to the fixed frame (3). The nut plate (4) is located between the fixed frame (3) and the door frame. The hinge can be adjusted in multiple dimensions by the cooperation of the fixed frame (3), the support plate (1), and the nut plate (4).

2. The concealed three-dimensional hinge for an armored door according to claim 1, characterized in that, The fixed frame (3) has countersunk holes (30) at all four corners. The countersunk holes (30) are elongated and set in the horizontal direction. Countersunk screws (23) are installed in the countersunk holes (30) and are threaded onto the door frame.

3. The concealed three-dimensional hinge for an armored door according to claim 2, characterized in that, The length of the countersunk waist hole (30) is 3mm.

4. The concealed three-dimensional hinge for an armored door according to claim 1, characterized in that, The rotating plate (2) has multiple countersunk holes (20). A first adjusting screw (5) is threaded into the countersunk hole (20). The first adjusting screw (5) is located between the rotating plate (2) and the nut plate (4). A through hole is provided in the center of the first adjusting screw (5). A first adjusting through hole (31) matching the countersunk hole (20) is provided on the fixed frame (3). The first adjusting through hole (31) and the countersunk hole (20) are interconnected. A countersunk screw (23) is installed in the countersunk hole (20). The countersunk screw (23) passes through the rotating plate (2), the first adjusting screw (5), the fixed frame (3), and the nut plate (4) in sequence and is threadedly connected.

5. A concealed three-dimensional hinge for an armored door according to claim 4, characterized in that, The adjustment distance of the first adjusting screw (5) is 4mm.

6. A concealed three-dimensional hinge for an armored entrance door according to claim 4, characterized in that, The first adjustment through hole (31) is elongated and vertically arranged. The nut plate (4) has multiple second adjustment through holes (40). The second adjustment through holes (40) are elongated and vertically arranged. A stepped screw (41) is installed in the second adjustment through hole (40). The stepped screw (41) passes through the second adjustment through hole (40) and is threadedly connected to the fixed frame (3). The upper and lower sides of the rotating plate (2) are provided with threaded holes (21). A second adjustment screw (6) is threadedly connected in the threaded hole (21). The other end of the second adjustment screw (6) abuts against the fixed frame (3).

7. A concealed three-dimensional hinge for an armored entrance door according to claim 6, characterized in that, The adjustment distance of the second adjusting screw (6) is 4mm.

8. A concealed three-dimensional hinge for an armored door according to claim 1, characterized in that, A connecting assembly is installed between the bearing plate (1) and the rotating plate (2). The connecting assembly includes an annular connecting part (10) fixedly installed at the upper and lower ends of the bearing plate (1) and a sleeve (22) fixedly installed on the rotating plate (2). The sleeve (22) is disposed between the two connecting parts (10). A pin (9) is installed in the inner cavity of the connecting part (10) and the sleeve (22).

9. A concealed three-dimensional hinge for an armored door according to claim 8, characterized in that, Both ends of the sleeve (22) are provided with planar thrust ball bearings (7), the other side of the planar thrust ball bearings (7) abuts against the connecting part (10), the planar thrust ball bearings (7) are sleeved on the pin (9), and an oil-impregnated bushing (8) is installed inside the sleeve (22), the oil-impregnated bushing (8) is sleeved on the pin (9).

Images