An invisible door frame that can be adjusted in any direction

Abstract

This invention provides a concealed door frame that can be adjusted in any direction, belonging to the technical field of concealed door frames. It includes an inner frame and an outer frame, which are rotatably connected by at least one set of hinge mechanisms. Each hinge mechanism includes two hinge assemblies, each with a first hinge point and a second hinge point. Each hinge assembly has an adjuster, which consists of an adjusting handwheel and two coaxially fixed adjusting shafts. The outer walls of the two adjusting shafts are respectively provided with threads in opposite directions. A first connector is fixed to the first hinge point, and a second connector is fixed to the second hinge point. The first and second connectors are respectively provided with threaded grooves that match the threaded portions of the adjusting shafts. By rotating the adjusting handwheel, the first and second connectors are driven to move synchronously in opposite directions, changing the distance between the first and second hinge points. This invention ensures the "invisible" visual effect of the concealed door, and has high installation efficiency and simple operation steps.

Description

Technical Field

[0001] This utility model belongs to the field of concealed door frame technology, and relates to a concealed door frame that can be adjusted in any direction. Background Technology

[0002] Hidden doors are a common and ingenious design method in modern decoration. They are typically used when a door needs to be opened in a complete background wall, but the integrity of the background wall is still desired. This solves the problem of the door affecting the integrity of the background wall.

[0003] The patent document with authorization publication number CN208280822U discloses a push-button concealed door, which includes a door frame assembly and a door assembly. One end of the hinge is hinged to the lower side of the door assembly, and the other end is hinged to the inner side of the door frame assembly. The hinge is composed of four components and two connecting tubes. The first connecting tube and the second connecting tube are simultaneously inserted into the first component and the second component and fixed thereto. The first component is hinged to the third component, and the second component is hinged to the fourth component.

[0004] However, the aforementioned existing technologies have the following shortcomings: In the later stages of installation (especially after heavy objects such as tiles are applied), the existing door frame structure is prone to tilting and deformation due to the additional load. This deformation disrupts the flatness and alignment between the door frame and the surrounding walls / decorations, thus seriously damaging its intended "invisible" visual effect. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an invisible door frame that can be adjusted in any direction to solve the problems mentioned in the background technology. This utility model provides an adjuster on the hinge assembly, which provides an effective secondary adjustment / correction capability for the door frame, thereby ensuring the "invisible" visual effect of the door frame.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: An invisible door frame that can be adjusted in any direction includes an inner frame and an outer frame. The inner frame and the outer frame are rotatably connected by at least one set of hinge mechanisms. The hinge mechanism includes two hinge components. Each hinge component has a first hinge point and a second hinge point. Each hinge component has an adjuster. The adjuster consists of an adjusting handwheel and two coaxially fixed adjusting shafts. The outer walls of the two adjusting shafts are respectively provided with threads in opposite directions. The first hinge point is fixed with a first connector, and the second hinge point is fixed with a second connector. The first connector and the second connector are respectively provided with threaded grooves that match the threaded part of the adjusting shaft. By rotating the adjustment handwheel, the first connector and the second connector are driven to move synchronously in opposite directions, changing the distance between the first hinge point and the second hinge point.

[0007] Furthermore, the hinge assembly also includes: First corner: fixed to the inner side wall of the outer frame; Second corner: fixed to the inner side wall of the inner frame; A rocker arm, one end of which is hinged to a second corner piece to form a third hinge point, and the other end of which is hinged to a second connector to form a second hinge point; The first hinge point is the hinge joint between the first connector and the first corner piece.

[0008] Furthermore, both the first connector and the second connector are provided with an anti-loosening structure, which is used to lock the adjusting shaft after the adjuster has been adjusted.

[0009] Furthermore, the anti-loosening structure is a hexagonal bolt. The sidewalls of the first connector and the second connector are both provided with threaded holes with connecting threaded grooves. The hexagonal bolt is threaded into the threaded hole, and one end of the hexagonal bolt extends into the threaded groove and abuts against the outer wall of the corresponding adjusting shaft.

[0010] Furthermore, at least one reinforcing support column is fixed between the two rocker arms.

[0011] Furthermore, the adjusting handwheel and the two adjusting shafts are integrally formed. The beneficial effects of this utility model are: This utility model uses the reverse thread structure of the adjuster to drive the two connectors to move synchronously in opposite directions when the handwheel is rotated, adjusting the distance between the first hinge point and the second hinge point, effectively offsetting the tilting deformation of the inner frame caused by external loads such as tiles, eliminating the height difference between the inner frame and the outer frame, ensuring that the inner frame and the outer frame, as well as the decorative surface installed on the outer wall of the inner frame, are permanently flat and aligned with the wall decorative surface, maintaining the "invisible" visual effect. This invention enables maintenance without disassembly. When deformation occurs after installation, there is no need to remove the finish or door body. Adjustment can be made directly by rotating the adjustment handwheel and tightening the hex bolts with an external hex wrench, reducing the maintenance threshold and making operation convenient. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the hinge mechanism according to an embodiment of the present utility model; Figure 3 This is a cross-sectional view of the hinge mechanism according to an embodiment of the present utility model; Figure 4This is a schematic diagram of the regulator according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of the first connector of this utility model embodiment; Figure 6 This is a cross-sectional view of the second connector according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the hexagonal bolt according to an embodiment of the present invention; Figure 8 This is an embodiment of the present utility model. Figure 3 Enlarged view of point A in the middle.

[0013] In the diagram: 1. Inner frame; 2. Outer frame; 3. Adjuster; 4. Adjusting handwheel; 5. Adjusting shaft; 6. First connector; 7. Second connector; 8. Threaded groove; 9. First corner; 10. Second corner; 11. Rocker arm; 12. Hex bolt; 13. Threaded hole; 14. Reinforcing support column. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] like Figure 1-6 As shown, an invisible door frame that can be adjusted in any direction includes an inner frame 1 and an outer frame 2. The inner frame 1 and the outer frame 2 are rotatably connected by at least one set of hinge mechanisms. The hinge mechanism includes two hinge components. The hinge components are provided with a first hinge point and a second hinge point. The hinge components are provided with an adjuster 3. The adjuster 3 consists of an adjusting handwheel 4 and two coaxially fixed adjusting shafts 5. The outer walls of the two adjusting shafts 5 are respectively provided with threaded portions in opposite thread directions. The first hinge point is fixed with a first connector 6, and the second hinge point is fixed with a second connector 7. The first connector 6 and the second connector 7 are respectively provided with threaded grooves 8 that match the threaded part of the adjusting shaft 5. By rotating the adjustment handwheel 4, the first connector 6 and the second connector 7 are driven to move synchronously in opposite directions, changing the distance between the first hinge point and the second hinge point to compensate for the deformation of the inner frame 1 caused by external load.

[0016] At least one reinforcing support column 14 is fixed between the two rocker arms 11, and two reinforcing support columns 14 are fixed between the two rocker arms 11. The reinforcing support column 14 between the two rocker arms 11 improves the overall rigidity of the hinge mechanism. The adjusting handwheel 4 and the two adjusting shafts 5 are integrally formed structures.

[0017] like Figure 1 , 3As shown, the hinge assembly further includes a first corner 9, a second corner 10, and a rocker arm 11. The first corner 9 is fixed to the inner sidewall of the outer frame 2, and the second corner 10 is fixed to the inner sidewall of the inner frame 1. One end of the rocker arm 11 is hinged to the second corner 10 to form a third hinge point, and the other end is hinged to the second connector 7 to form the second hinge point. The first hinge point is the hinge joint between the first connector 6 and the first corner 9.

[0018] like Figure 5-8 As shown, both the first connector 6 and the second connector 7 are provided with anti-loosening structures. The anti-loosening structures are used to lock the adjusting shaft 5 after the adjuster 3 is adjusted. The anti-loosening structure is a hexagonal bolt 12. The side walls of the first connector 6 and the second connector 7 are provided with threaded holes 13 that communicate with the threaded groove 8. The hexagonal bolt 12 is threaded into the threaded hole 13. One end of the hexagonal bolt 12 extends into the threaded groove 8 and abuts against the outer wall of the corresponding adjusting shaft 5.

[0019] The anti-loosening structure radially locks the adjusting shaft 5 with hexagonal bolts 12, preventing the threads of the adjusting shaft 5 from retracting due to vibration, avoiding displacement caused by the impact of the door opening and closing after adjustment, and maintaining the correct state for a long time.

[0020] The specific operation method of this utility model is as follows; Step 1: Deformation Detection and Adjustment Preparation Use a level to check the tilt direction and deformation of the door frame. Step Two: Correcting the Tilting Rotate the adjusting handwheels 4 located at the top and bottom ends clockwise or counterclockwise to make the first connector 6 and the second connector 7 move synchronously towards or away from each other, shortening or increasing the distance between the first hinge point and the second hinge point, thereby adjusting the tilt of the inner frame 1, counteracting the tilt deformation of the inner frame 1 caused by external loads such as tiles, eliminating the height difference between the inner frame 1 and the outer frame 2, ensuring that the inner frame 1 and the outer frame 2, and the decorative surface installed on the outer wall of the inner frame 1 and the wall decorative surface remain permanently flat and aligned, maintaining the "invisible" visual effect; Step 3: Tighten to prevent loosening After adjustment, tighten the hex bolt 12 on the connector head with a hex wrench: This causes the end of the hexagonal bolt 12 to radially press against the outer wall of the adjusting shaft 5, thereby preventing the adjusting shaft 5 from rotating unexpectedly.

[0021] This utility model drives the two connectors to move synchronously in opposite directions when the handwheel is rotated, adjusting the distance between the first hinge point and the second hinge point, effectively offsetting the tilting deformation of the inner frame 1 caused by external loads such as tiles, eliminating the height difference between the inner frame 1 and the outer frame 2, ensuring that the inner frame 1 and the outer frame 2, and the decorative surface installed on the outer wall of the inner frame 1 and the wall decorative surface remain permanently flat and aligned, maintaining the "invisible" visual effect. This utility model enables maintenance without disassembly. When deformation occurs after installation, there is no need to remove the veneer or door body. Adjustment can be made directly by rotating the adjustment handwheel 4 and tightening the hex bolt 12 with an external hex wrench. This reduces the maintenance threshold, makes operation convenient, and improves installation efficiency. Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A concealed door frame capable of arbitrary orientation adjustment, comprising an inner frame (1) and an outer frame (2), wherein the inner frame (1) and the outer frame (2) are rotatably connected by at least one set of hinge mechanisms, wherein the hinge mechanism comprises two hinge components, each hinge component having a first hinge point and a second hinge point, characterized in that: The hinge assembly is provided with an adjuster (3), which consists of an adjusting handwheel (4) and two coaxially fixed adjusting shafts (5). The outer walls of the two adjusting shafts (5) are respectively provided with threaded portions in opposite thread directions. The first hinge point is fixed with a first connector (6), and the second hinge point is fixed with a second connector (7). The first connector (6) and the second connector (7) are respectively provided with threaded grooves (8) that match the threaded part of the adjusting shaft (5). By rotating the adjustment handwheel (4), the first connector (6) and the second connector (7) are driven to move in opposite directions synchronously, changing the distance between the first hinge point and the second hinge point.

2. The invisible door frame capable of realizing arbitrary orientation adjustment according to claim 1, characterized in that, The hinge assembly also includes: First corner (9): fixed to the inner wall of the outer frame (2); Second corner (10): fixed to the inner side wall of the inner frame (1); The rocker arm (11) has one end hinged to the second corner (10) to form the third hinge point, and the other end hinged to the second connector (7) to form the second hinge point; The first hinge point is the hinge joint between the first connector (6) and the first corner (9) piece.

3. The invisible door frame capable of realizing arbitrary orientation adjustment according to claim 1, characterized in that, Both the first connector (6) and the second connector (7) are provided with anti-loosening structures, which are used to lock the adjusting shaft (5) after the adjuster (3) has been adjusted.

4. The invisible door frame capable of realizing arbitrary orientation adjustment according to claim 3, characterized in that, The anti-loosening structure is a hexagonal bolt (12). The first connector (6) and the second connector (7) both have threaded holes (13) with connecting threaded grooves (8) on their side walls. The hexagonal bolt (12) is threaded into the threaded hole (13). One end of the hexagonal bolt (12) extends into the threaded groove (8) and abuts against the outer wall of the corresponding adjusting shaft (5).

5. The invisible door frame capable of realizing arbitrary orientation adjustment according to claim 2, characterized in that, At least one reinforcing support column (14) is fixed between the two rocker arms (11).

6. The invisible door frame capable of realizing arbitrary orientation adjustment according to claim 1, characterized in that, The adjustment handwheel (4) and the two adjustment shafts (5) are integrally formed.

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