Tightness-adjustable hidden hinge structure

Abstract

The utility model discloses a tightness-adjustable hidden hinge structure which comprises an installation back plate and an installation seat, the outer side of the back face of the installation seat is fixedly connected with the installation back plate, an inclined kidney-shaped groove hole is formed in the upper surface of the top of the installation seat, an L-shaped connecting rod is installed in the kidney-shaped groove hole, and the bottom end of a fixed top seat is rotationally connected with a rotating shaft. The outer side of the rotating shaft is provided with an inserting plate through a connecting arm, one side of the inserting plate is fixedly connected with a hinge, and the inserting plate and the hinge are connected to form an L-shaped plate structure. The whole hinge structure is composed of the installation back plate, the installation base, the inserting plate and the hinge, the whole inserting plate can move into the containing groove under the effect of the rotating shaft, the effect of containing and hiding the connecting arm is achieved, a certain protection effect can be achieved on the connecting arm serving as a movable supporting effect in the hinge structure, and the hinge structure is simple in structure and convenient to use. When the plug board and the hinge move around the rotating shaft, the effect of adjusting the tightness of the gap between the hinge and the wall surface can be achieved through cooperation of the L-shaped connecting rod and the kidney-shaped groove hole.

Description

Technical Field

[0001] The utility model relates to the technical field of hinge structures in hardware tools, and specifically relates to a hidden hinge structure with adjustable tightness. Background Art

[0002] A hinge, also known as a hinge joint, is a mechanical device used to connect two solids and allow relative rotation between them. A hinge consists of movable components or foldable materials and is widely used on boxes, cabinets, and door frames. However, the hinge structure with a fastening structure only supports the rotational movement of the door panel, and the tightness gap between the door panel and the fixed door frame cannot be adjusted, which affects the smoothness of the door panel during opening and closing. Moreover, the bearing that serves as the movable support in the hinge structure is exposed outside and is easily damaged by extrusion and fracture, affecting the normal use of the hinge. Therefore, this solution provides a hidden hinge structure with adjustable tightness. Content of the Utility Model

[0003] The purpose of the utility model is to provide a hidden hinge structure with adjustable tightness to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A hidden hinge structure with adjustable tightness, including a mounting back plate and a mounting seat. The outer side of the back surface of the mounting seat is fixedly connected to the mounting back plate. An obliquely arranged waist-shaped slot hole is opened on the upper surface of the top of the mounting seat. An L-shaped connecting rod is installed in the waist-shaped slot hole. A bolt is installed at the top end of the L-shaped connecting rod. The other end of the L-shaped connecting rod passes through the mounting seat and is connected to a fixed top seat. The bottom end of the fixed top seat is rotatably connected to a rotating shaft. A plug-in board is installed on the outer side of the rotating shaft through a connecting arm. One side of the plug-in board is fixedly connected to a hinge. The plug-in board and the hinge are connected to form an L-shaped plate structure.

[0005] A receiving groove is opened inside the mounting seat. A horizontal notch is opened on the surface of the mounting seat close to the rotating shaft. The receiving groove is communicated with the notch. The front of the receiving groove is an open structure, and the back of the receiving groove is blocked by a back plate. The width of the receiving groove is greater than the thickness of the plug-in board. The inner wall surface of the mounting seat located in the receiving groove and the outer surface of the plug-in board are both arc-shaped surface structures.

[0006] Preferably, the fixed top seat is connected to the mounting seat through an L-shaped connecting rod.

[0007] Preferably, the plug-in board moves around the rotating shaft through the connecting arm. When the plug-in board is located inside the receiving groove, the connecting arm is located at the notch on the surface of the mounting seat.

[0008] Advantageous Effects

[0009] The utility model provides a hidden hinge structure with adjustable tightness, which has the following beneficial effects:

[0010] The whole hinge structure is composed of an installation back plate, an installation seat, a plug-in board and a hinge. Among them, the plug-in board and the hinge are rotationally connected through a rotating shaft and a fixed top seat. The whole plug-in board can move into the accommodation groove under the action of the rotating shaft, playing the role of storing and hiding the connecting arm, and can play a certain protective effect on the connecting arm that plays the role of active support in the hinge structure. When the plug-in board and the hinge move around the rotating shaft, the tightness of the gap between the hinge and the wall surface can be adjusted through the cooperation of the L-shaped connecting rod and the kidney-shaped slot. Description of the drawings

[0011] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 is a schematic diagram of the state after the plug-in board moves into the accommodation groove in the utility model;

[0013] Figure 3 is a schematic diagram of the assembly structure of the fixed top seat and the L-shaped connecting rod;

[0014] In the figure: 1. Installation back plate; 2. Installation seat; 3. Kidney-shaped slot; 4. L-shaped connecting rod; 5. Fixed top seat; 6. Rotating shaft; 7. Connecting arm; 8. Plug-in board; 9. Hinge; 10. Accommodation groove; 11. Notch. Specific implementation manners

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a hidden hinge structure with adjustable tightness, including an installation back plate 1 and an installation seat 2. The outer side of the back surface of the installation seat 2 is fixedly connected to the installation back plate 1. An inclined kidney-shaped slot 3 is opened on the upper surface of the top of the installation seat 2. An L-shaped connecting rod 4 is installed in the kidney-shaped slot 3. A bolt is installed at the top end of the L-shaped connecting rod 4. The other end of the L-shaped connecting rod passes through the installation seat 2 and is connected to a fixed top seat 5. The bottom end of the fixed top seat 5 is rotationally connected to a rotating shaft 6. An outer side of the rotating shaft 6 is provided with a plug-in board 8 through a connecting arm 7. One side of the plug-in board 8 is fixedly connected to a hinge 9. The plug-in board 8 and the hinge 9 are connected to form an L-shaped plate structure;

[0017] The interior of the mounting base 2 is provided with a receiving groove 10. A horizontal notch 11 is formed on the surface of the mounting base 2 close to the rotating shaft 6. The receiving groove 10 communicates with the notch 11. The front of the receiving groove 10 is an open structure, and the back of the receiving groove 10 is sealed by a back plate 1. The width of the receiving groove 10 is greater than the thickness of the plug-in board 8. The inner wall surface of the mounting base 2 where the receiving groove 10 is located and the outer surface of the plug-in board 8 are both arc-shaped surface structures.

[0018] The fixed top seat 5 is connected to the mounting base 2 through an L-shaped connecting rod 4; through the cooperation of the L-shaped connecting rod 4 and the waist-shaped slot 3, it is convenient to adjust the distance between the fixed top seat 5 and the mounting base 2, so that the plug-in board 8 and the hinge 9 can adjust the tightness gap between the door panel assembled at the hinge 9 and the wall surface when moving around the rotating shaft 6.

[0019] The plug-in board 8 moves around the rotating shaft 6 through the connecting arm 7. When the plug-in board 8 is inside the receiving groove 10, the connecting arm 7 is located at the notch 11 on the surface of the mounting base 2; that is, when the plug-in board 8 is inside the receiving groove 10, its connecting arm 7 and the plug-in board 8 are in a stored state and can be hidden to avoid the connecting arm 7, which serves as a movable support in the entire hinge structure, being exposed outside and damaged or broken.

[0020] The specific assembly description of the hinge structure in this solution is as follows:

[0021] In this solution, the hinge structure is divided into several parts, including the mounting back plate 1, the mounting base 2, the plug-in board 8, and the hinge 9. Among them, the plug-in board 8 and the hinge 9 are of a fixed integral structure. The mounting back plate 1 is internally provided with a receiving groove 10. The front and bottom surfaces of the receiving groove 10 are both open structures, the back of the receiving groove 10 is sealed by the mounting back plate 1, and the side surface of the receiving groove 10 communicates with the notch 11;

[0022] During installation, it is fixed to the wall corner by the mounting back plate 1, and the outer side surface of the hinge 9 is fixedly installed with a door panel for opening and closing through bolts;

[0023] In its normal state, the plug-in board 8 is located inside the receiving groove 10, and the connecting arm 7 at the end of the plug-in board 8 is located at the notch 11, which serves to store the plug-in board 8 and the connecting arm 7. While saving the installation space, it can provide a certain degree of protection.

[0024] At this time, the door panel fixed on the outer surface of the hinge 9 forms a parallel state with the mounting back plate 1, that is, the door panel fixed on the outer surface of the hinge 9 is in a state of blocking the door panel. When pulling the door panel on the outer side surface of the hinge 9, the hinge 9 and the plug-in board 8 make an arc-shaped movement centered on the rotating shaft 6. At this time, the plug-in board 8 moves outwards from the front opening of the receiving groove 10 and disengages from the mounting base 2, and the door panel fixed at the hinge 9 at the outer end of the plug-in board 8 will move from the front of the receiving groove 10 to the inner side of the wall surface.

[0025] That is, under normal conditions, the plug-in board 8 is stored in the receiving groove 10, and only the door panel fixed on the hinge 9 is outside, achieving the effect of hiding the hinge structure. When the door panel is not installed, it is convenient to store and preserve the entire hinge structure after the plug-in board 8 is stored, facilitating the storage and transportation of the entire hinge structure, and avoiding the accidental damage and fracture of the connecting arm 7 as a moving support structure, which may prevent the normal hinge rotation of the door panel.

[0026] The fixed top seat 5 and the mounting seat 2 are connected by an L-shaped connecting rod 4. One end of the L-shaped connecting rod 4 is installed at the waist-shaped slot hole 3 on the surface of the mounting seat 2 through a bolt. When an outward pulling force is applied to the fixed top seat 5, the end of the L-shaped connecting rod 4 moves from one side of the waist-shaped slot hole 3 to the other side. At this time, the distance between the fixed top seat 5 and the mounting seat 2 becomes larger, and the tightness gap between the hinge 9 and the wall becomes larger. Similarly, when the gap between the fixed top seat 5 and the mounting seat 2 becomes smaller, the tightness gap at the hinge 9 and the wall becomes smaller, facilitating the adjustment of the tightness after the door panel is assembled at the hinge 9.

[0027] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hidden hinge structure with adjustable tightness, comprising a mounting backplate (1) and a mounting seat (2), characterized in that, The outer side of the back surface of the mounting base (2) is fixedly connected to the mounting back plate (1). An obliquely arranged waist-shaped slot hole (3) is formed in the upper surface of the top of the mounting base (2). An L-shaped connecting rod (4) is installed in the waist-shaped slot hole (3). A bolt is installed at the top end of the L-shaped connecting rod (4). The other end of the L-shaped connecting rod passes through the mounting base (2) and is connected to a fixed top seat (5). The bottom end of the fixed top seat (5) is rotatably connected to a rotating shaft (6). A plug-in board (8) is installed on the outer side of the rotating shaft (6) through a connecting arm (7). A hinge (9) is fixedly connected to one side of the plug-in board (8). The plug-in board (8) and the hinge (9) are connected to form an L-shaped plate structure; A receiving groove (10) is formed inside the mounting base (2). A transverse notch (11) is formed in one side surface of the mounting base (2) close to the rotating shaft (6). The receiving groove (10) is communicated with the notch (11). The front surface of the receiving groove (10) is an open structure. The back surface of the receiving groove (10) is blocked by the back plate (1). The width of the receiving groove (10) is greater than the thickness of the plug-in board (8). The inner wall surface of the mounting base (2) where the receiving groove (10) is located and the outer surface of the plug-in board (8) are both arc surface structures.

2. The adjustable-tension concealed hinge structure according to claim 1, characterized in that: The fixed top seat (5) is connected to the mounting base (2) through the L-shaped connecting rod (4).

3. The adjustable-tension concealed hinge structure according to claim 1, wherein: The plug-in board (8) moves around the rotating shaft (6) through the connecting arm (7). When the plug-in board (8) is located inside the receiving groove (10), the connecting arm (7) is located at the notch (11) on the surface of the mounting base (2).

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