Door rotating structure
By adjusting the length and position of the hinge assembly, the door leaf or frame makes near-perpendicular contact with the sealing strip, solving the problem of the sealing strip being subjected to lateral force when the door is closed and extending the service life of the sealing structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU ZHONGDIAN INNOVATION TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2026-04-27
- Publication Date
- 2026-06-05
AI Technical Summary
In existing door and window hinge structures, the sealing strip is subjected to lateral force when the door is closed, which shortens the service life of the sealing structure.
By using hinge assembly one and hinge assembly two of different lengths to work together, the rotation angle of the door leaf is adjusted so that the door frame or door leaf is in near-perpendicular contact with the sealing strip, thereby reducing lateral force.
It improves the service life of the door sealing structure, reduces the wear of the sealing strip, and extends its service life.
Smart Images

Figure CN122148139A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of building door and window engineering, and specifically relates to a rotating structure for doors. Background Technology
[0002] Hinge assemblies are one of the main components of door and window assembly structures. Currently, most commonly used surface-mounted hinges involve rotation around the hinge axis. When a closed door is closed, the two sides of the door (the hinge side and the handle side) move at different speeds after contacting the sealing strip. This means the door will inevitably contact one side of the sealing strip first, then the other. Consequently, after the door contacts one side of the sealing strip, it continues to rotate, subjecting the sealing strip to lateral force. This is especially problematic in knife-edge compression seal structures, reducing the lifespan of the door's sealing structure. Summary of the Invention
[0003] To address the aforementioned technical problems, this application provides a door rotating structure that allows the door leaf or frame to press against the sealing strip with a smaller rotation angle, thereby reducing the lateral force on the sealing strip and improving the service life of the door sealing structure. The specific technical solution is as follows: A door rotating structure is used to connect the door leaf and the door frame, including at least one connecting component, the connecting component including hinge component one and hinge component two; Both hinge assembly one and hinge assembly two include a base connecting the door leaf and a hinge leaf connecting the door leaf, as well as a hinge connecting plate rotatably connecting the base and the hinge leaf; The length of hinge assembly one is greater than the length of hinge assembly two; by adjusting the length of the hinge connecting plate, the rotation angle of the door leaf can be adjusted. The hinge connecting plate of the hinge assembly 1 is rotatably connected to the hinge leaf away from the door leaf and to one side of the base; The hinge connecting plate of the second hinge assembly is rotatably connected to the hinge blade near the door leaf and one side of the base.
[0004] Preferably, the first hinge assembly and the second hinge assembly are adjustable in position on the door leaf and / or the door frame.
[0005] Preferably, the hinge connecting plate is rotatably connected to the base and the hinge blade via a rotating shaft.
[0006] More preferably, it also includes an adjusting set screw, which abuts against the rotating shaft to limit the position of the rotating shaft.
[0007] Preferably, the base and the hinge blade are provided with rotating grooves, and the two ends of the hinge connecting plate are respectively disposed in the rotating grooves for rotation.
[0008] Preferably, the first hinge assembly and the second hinge assembly are detachably connected to the door leaf and / or the door frame, respectively.
[0009] Preferably, the first hinge component and the second hinge component are arranged in parallel.
[0010] The advantages of this application compared to the prior art are as follows: This application uses hinge components one and two of different lengths to work together. By adjusting the length and connection position of the hinge connecting plate according to different door opening and closing needs, the movement trajectory of the door can be adjusted. This reduces the rotation angle between the door frame or door and the sealing strip after they come into contact, so that the door or door frame can contact the sealing strip in a near-vertical state, which can greatly improve the service life of the door sealing structure. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the rotational state of this application. Figure 1 (Top view) Figure 3 This is a schematic diagram of the rotation state in existing technology.
[0012] In the picture: A. Hinge; B. Sealing strip; C. Hinge assembly one; D. Hinge assembly two; 1. First hinge leaf, 2. Door leaf, 3. Pivot, 4. Door frame, 5. First hinge connecting plate, 6. First base, 7. Second base, 8. Second hinge connecting plate, 9. Adjusting screw, 10. Second hinge leaf. Detailed Implementation
[0013] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described in this application are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0014] Combination Figure 3 Traditional door panels 2 or door frames 4 are equipped with sealing strips B. When the door panel 2 is closed, it compresses the sealing strip B to achieve a sealing effect. Traditional hinges A have a large rotation angle, which can easily generate a large lateral force on the sealing strip B, thereby shortening the service life of the sealing strip B.
[0015] It should be noted that the "rotation angle" mentioned in this application specifically refers to the rotation angle of the door leaf 2 during the final sealing stage after contacting the sealing strip B.
[0016] See Figures 1 to 2 To further elaborate on this application: Combination Figure 1 The door uses a rotating structure to connect the door leaf 2 and the door frame 4, which includes at least one connecting component. In this embodiment, one connecting component is used as an example, and the sealing strip B is provided on the door leaf 2. The number of connecting components can be adjusted according to needs, and no specific limitation is made here.
[0017] The connecting components include hinge component one C and hinge component two D. Hinges component one C and hinge component two D, with different lengths, cooperate to change the movement trajectory of the door leaf 2. In this embodiment, the length of hinge component one C is greater than the length of hinge component two D; however, the length of hinge component two D can also be greater than the length of hinge component one C. The specific lengths of hinge component one C and hinge component two D can be determined experimentally by length technicians based on actual application conditions and can be modified to meet requirements; no specific limitations are imposed here.
[0018] Combination Figure 1 The hinge assembly C includes a first base 6 connecting the door frame 4 and a first hinge blade 1 connecting the door leaf 2, and a first hinge connecting plate 5 rotatably connecting the first base 6 and the first hinge blade 1; the hinge assembly D includes a second base 7 connecting the door frame 4 and a second hinge blade 10 connecting the door leaf 2, and a second hinge connecting plate 8 rotatably connecting the second base 7 and the second hinge blade 10; wherein the length of the first hinge connecting plate 5 is greater than the length of the second hinge connecting plate 8.
[0019] The first hinge connecting plate 5 rotatably connects the first hinge leaf 1 away from the door leaf 2 to the first base 6; the second hinge connecting plate 8 rotatably connects the second hinge leaf 10 close to the door leaf 2 to the second base 7; at the same time, by adjusting the lengths of the first hinge connecting plate 5 and the second hinge connecting plate 8, the rotation angle of the door leaf 2 can be adjusted, so that the door leaf 2 or the door frame 4 can contact the sealing strip B in an approximately perpendicular state, which can greatly improve the service life of the door sealing structure.
[0020] In this embodiment, the hinge connecting plate 5 of the hinge assembly one C is rotatably connected to the side of the hinge blade 1 away from the door leaf 2; the hinge connecting plate 8 of the hinge assembly two D is rotatably connected to the side of the hinge blade 10 close to the door leaf 2; the hinge blades (1, 10) and the base (6, 7) are aligned along the z-axis.
[0021] The existing hinge structure includes two hinge blades, which are hinged together by a hinge axis. Its movement is essentially a circular motion of the door around the hinge axis. When opening and closing the door, the movement speeds of the two sides of the door (the handle side and the hinge A side) are different. When the door leaf 2 is closed, the door frame 4 will inevitably contact the sealing strip B near the hinge A side first, and then contact the sealing strip B near the handle side. After the door frame 4 contacts the sealing strip B near the hinge A side first, it will continue to rotate, thus subjecting the sealing strip B to a lateral force.
[0022] This application utilizes the cooperation of hinge assembly C and hinge assembly D to form a combined structure. By adjusting the size and position of the hinge connecting plates (5, 8) according to different door opening and closing requirements, the movement trajectory of the door leaf 2 can be changed. This reduces the rotation angle between the door frame 4 and the sealing strip B after they come into contact, allowing the door frame 4 and the sealing strip B to contact each other in a near-perpendicular state. This reduces the lateral force on the sealing strip B and greatly improves the service life of the door sealing structure.
[0023] It should be noted that both hinge assembly C and hinge assembly D in this application consist of a base, a hinge connecting plate, and hinge blades, while traditional hinges are simply made of two hinge blades hinged together. This application uses hinge assembly C and hinge assembly D together as a single hinge.
[0024] contrast Figure 2 and Figure 3 , Figure 3 In the existing technology, when the sealing strip B contacts the door frame A, due to its large rotation angle, the side of the sealing strip B contacts the door frame A first. As the door leaf 2 continues to rotate, the sealing strip B is subjected to a large lateral force. Figure 2 The sealing strip B of this application has a smaller rotation angle when it contacts the door frame A (approximately perpendicular contact), so that the top of the sealing strip B contacts the door frame A first. As the door leaf 2 continues to rotate, the lateral force on the sealing strip B can be greatly reduced.
[0025] Hinge assembly C and hinge assembly D are detachably connected to the door leaf 2 and the door frame 4, respectively, thereby adjusting their positions on the door frame 4. In this embodiment, the base (6, 7) is detachably connected to the door frame 4. Hinge assembly C and hinge assembly D are arranged in parallel. In actual use, the dimensions of the hinge connecting plates (5, 8) and the positions of the base (6, 7) and hinge blades (1, 10) can be adjusted according to different usage scenarios to meet the usage requirements.
[0026] In embodiments not shown, the hinge blades (1, 10) may be detached from the door leaf 2, or the base (6, 7) may be detached from the door frame 4 and the hinge blades (1, 10) may be detached from the door leaf 2.
[0027] The hinge connecting plates (5, 8) are rotatably connected to the base (6, 7) and hinge blades (1, 10) via a rotating shaft 3. The hinge connecting plates (5, 8) can rotate around the base (6, 7) and hinge blades (1, 10) via the rotating shaft 3. The base (6, 7) and hinge blades (1, 10) are also provided with adjusting screws 9, which abut against the rotating shaft 3 to limit the position of the rotating shaft 3.
[0028] The base (6, 7) and the hinge blades (1, 10) are provided with through holes, and the rotating shaft 3 is located in the through holes. The size of the through holes is larger than the size of the rotating shaft 3. The distance between the door leaf 2 and the hinge assembly (C, D) can be adjusted by the adjusting screw 9, so that the hinge assembly (C, D) is closer to the door leaf 2.
[0029] The base (6, 7) and the hinge blades (1, 10) are provided with rotating grooves, and the two ends of the hinge connecting plate (5, 8) are respectively located in the rotating grooves to rotate, so as to ensure rotational stability.
[0030] Combination Figure 1 Assuming that the left side of the hinge connecting plate 5 is the first pivot and the right side is the second pivot; and that the left end of the hinge connecting plate 8 is the third pivot and the right end is the fourth pivot, this will be explained.
[0031] As a feasible implementation, the base 6 and the base 7 are aligned along the X-axis; the distance between the first pivot and the door frame 4 is 45mm; the center distance between the first pivot and the third pivot is 14mm; the distance between the second pivot and the fourth pivot along the Y-axis is 24.451mm; the distance along the X-axis is 6.013mm; the distance between the second pivot and the door leaf 2 is 37.5mm; the center distance between the two axes of the hinge connecting plate 5 is 42mm; and the center distance between the two axes of the hinge connecting plate 8 is 35mm.
Claims
1. A hinge structure for a door for connecting a door leaf to a door frame, characterized in that: It includes at least one connecting component, the connecting component including hinge component one and hinge component two; Both hinge assembly one and hinge assembly two include a base connecting the door leaf and a hinge leaf connecting the door leaf, as well as a hinge connecting plate rotatably connecting the base and the hinge leaf; The length of hinge assembly one is greater than the length of hinge assembly two; by adjusting the length of the hinge connecting plate, the rotation angle of the door leaf can be adjusted. The hinge connecting plate of the hinge assembly 1 is rotatably connected to the hinge leaf away from the door leaf and to one side of the base; The hinge connecting plate of the second hinge assembly is rotatably connected to the hinge blade near the door leaf and one side of the base.
2. The door rotation structure according to claim 1, characterized in that: The first hinge assembly and the second hinge assembly can be adjusted to their positions on the door leaf and / or the door frame.
3. The door rotation structure according to claim 1, characterized in that: The hinge connecting plate is rotatably connected to the base and the hinge blade by a rotating shaft.
4. The door rotation structure according to claim 3, characterized in that: It also includes an adjusting set screw, which abuts against the rotating shaft to limit the position of the rotating shaft.
5. The door rotation structure according to claim 1, characterized in that: The base and the hinge blades are provided with rotating grooves, and the two ends of the hinge connecting plate are respectively disposed in the rotating grooves for rotation.
6. The door rotation structure according to claim 1, characterized in that: The first hinge assembly and the second hinge assembly are respectively detachably connected to the door leaf and / or the door frame.
7. The door rotation structure according to claim 1, characterized in that: The first hinge component and the second hinge component are arranged in parallel.