Hidden hinge structure with adjustable angle

Abstract

The utility model provides an angle-adjustable hidden type hinge structure which comprises a mounting shaft, a rotating shaft connecting piece, a door edge fixing piece and a base, the rotating shaft connecting piece is fixed on the mounting shaft, and the rotating shaft connecting piece and the door edge fixing piece are fixed into a connecting body. The purpose of hiding the hinge is achieved by slotting the mounting base, so that the requirement on attractiveness is met; protruding ribs are arranged on the rotating shaft. The rotating shaft edge of the rotating shaft connecting piece is rectangular-ambulatory-plane, and the ribs are located at the rectangular-ambulatory-plane concave positions. A circular ring is arranged between the rotating shaft and the hollow-square-shaped concave position of the rotating shaft connecting piece, three soft protrusions are arranged in the range of 90 degrees of the circle center in the circular ring, and the angle interval of the protrusions is 30 degrees. The ring and the rotating shaft share a circle center; the circular ring is fixed on the base, and soft protrusions in the circular ring limit the protruding ribs of the rotating shaft to control the angle of the switch. The opening degree of the door can be adjusted according to different requirements and scenes, ventilation and lighting can be guaranteed, and the situation that the door is excessively opened to occupy too much space or cause collision damage can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of hardware accessories technology, specifically to an adjustable-angle concealed hinge structure. Background Technology

[0002] In modern interior design, people pursue a simple and streamlined visual effect. Concealed hinges allow doors to blend seamlessly with surrounding walls or furniture, eliminating the abruptness of traditional hinges and making the space appear cleaner and more spacious. They can fulfill more design needs and achieve aesthetically pleasing results. Hinges hidden within the door frame reduce friction with the outside environment, lowering noise when opening and closing the door and providing a quieter living environment. They also make the door leaf more compact, improving room sound and heat insulation. Limiting the door's opening angle reduces the channels for airflow and sound transmission, thus contributing to energy conservation and sound insulation. Especially in winter, reducing the door's opening angle minimizes heat loss and lowers energy consumption. Furthermore, for spaces requiring a quiet environment, such as studies and bedrooms, limiting the door's opening angle effectively reduces external noise interference, improving living comfort.

[0003] To address this, we have proposed an adjustable concealed hinge. The hinge is hidden by a grooved mounting base, achieving an aesthetically pleasing design. Simultaneously, the soft protrusions inside the ring restrict the rotation of the rotating shaft's protruding ridges, controlling the shaft's rotation and thus the door opening angle. This new hinge combines adjustment and concealment, increasing its usability and enhancing its appearance compared to traditional hinges. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes an adjustable-angle concealed hinge structure to more accurately solve the issues of hinge concealment and control of the opening and closing angle.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an adjustable angle concealed hinge structure includes an installation shaft, a rotating shaft connecting piece, a door edge fixing piece, and a base; the rotating shaft connecting piece is fixed on the installation shaft, and the rotating shaft connecting piece and the door edge fixing piece are fixed as a connecting body.

[0006] Furthermore, both the rotating shaft connecting piece and the door edge fixing piece are right-angled plates. The rotating shaft connecting piece and the door edge fixing piece are not connected to the edge of the item, and the two sides overlap and are fixed by screws.

[0007] Furthermore, the door frame has a slotted base for fixing the connector. The base can fully accommodate the connector. Additionally, the longer side of the base is longer than the diagonal length of the connector.

[0008] Furthermore, the mounting shaft contains a rotating shaft with protruding ribs. The ribs are made of a rigid material.

[0009] Furthermore, the edge of the rotating shaft connecting piece is in a square shape with a hollow center, and the rib is located in the concave part of the square shape with a hollow center and is on the same vertical line as the rotating shaft connecting piece.

[0010] Furthermore, there is a circular ring between the rotating shaft and the concave part of the rotating shaft connecting piece in the shape of a square with a hollow center. Three soft protrusions are arranged within the range of 90° of the center of the inner circle of the circular ring, and the angular spacing of the protrusions is 30°.

[0011] Furthermore, the circular ring and the rotating shaft share the same center. The radius of the inner circle is slightly larger than that of the rotating shaft. The gap between the circular ring and the rotating shaft is smaller than the connection between the rib and the soft protrusion. In the initial position, the rib is outside the 90° range of the circular ring.

[0012] Furthermore, the circular ring is fixed on the base.

[0013] In summary, the present utility model mainly has the following beneficial effects:

[0014] 1. By开槽 in the installation base of the present utility model, the hinge is hidden. From the perspective of decoration aesthetics, the invisible design can make the door more integrated with the surrounding environment, enhance the visual effect of the overall space, make the door no longer exist abruptly, but become a part of the space decoration. The hinge is hidden in the door frame, reducing friction with the outside world, lowering the noise of opening and closing the door, and providing a quieter living environment. It makes the door leaf more compact and improves the sound insulation and heat insulation effects of the room.

[0015] 2. The present utility model controls the opening and closing angle by means of the restriction of the soft protrusions in the circular ring on the protruding rib of the rotating shaft. The opening degree of the door can be adjusted according to different needs and scenarios, which can not only ensure ventilation and lighting, but also avoid the door being opened too much, occupying too much space or causing collision damage. It can also reduce the channels of air circulation and sound transmission, thus playing a certain role in energy conservation and sound insulation. Especially in winter, reducing the opening and closing angle of the door can reduce the loss of indoor heat and lower energy consumption. At the same time, for some places that require a quiet environment, such as study rooms and bedrooms, restricting the opening and closing angle of the door can effectively reduce the interference of external noise and improve the comfort of living. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It should be noted that the "开槽" in item needs to be replaced with the correct English expression according to the actual situation.This is a schematic diagram showing the positions of the rotating shaft and the ring of this utility model;

[0019] Figure 3 This is a schematic diagram of the ring structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the rotating shaft and the rotating shaft connecting piece of this utility model.

[0021] The attached figures are labeled as follows:

[0022] 1. Rotating shaft; 2. Rotating shaft connecting piece; 3. Door edge fixing piece; 4. Base; 5. Protruding rib; 6. Ring; 7. Soft protrusion. Detailed Implementation

[0023] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will provide further details.

[0024] Please refer to Figures 1-3 This utility model proposes an adjustable-angle concealed hinge structure based on... Figure 1-3 As shown, it includes a rotating shaft 1, a rotating shaft connecting piece 2, a door edge fixing piece 3, and a base 4. The rotating shaft connecting piece 2 is fixed on the rotating shaft 1, and the rotating shaft connecting piece 2 is connected to the door edge fixing piece 3.

[0025] Both the rotating shaft connecting piece 2 and the door edge fixing piece 3 are right-angled plates. The rotating shaft connecting piece 2 and the door edge fixing piece 3 are not connected to the door edge; their two sides overlap and are fixed with screws to form a connector. This overlapping and screw-fixed design improves the hinge's sturdiness, increasing its ability to bear the weight of the door. This allows for the installation of heavy-duty doors, such as entrance doors, increasing the hinge's versatility. The simple stacking achieves excellent sturdiness, greatly improving practicality. A grooved base 4 is cut into the door frame to fix the hinge. This covers the open groove, improving the overall aesthetics of the door frame. The long side of the base 4 is longer than the diagonal length of the connector. The base 4 can fully accommodate the connector, ensuring the rotating shaft can rotate normally inside. Except for a small piece of material at the door seam of the door edge fixing piece 3, the entire connector is contained within the base 4 when the door is fully closed, achieving a near-hidden effect. This achieves the purpose of concealing the hinge. The door edge fixing piece 3 is fixed to the door edge with screws, making it simple, convenient, and easy to operate. From an aesthetic perspective, concealed hinges allow the door to blend seamlessly with its surroundings, eliminating the abruptness of traditional hinges and making the space appear cleaner and more spacious. This enhances the overall visual appeal, making the door a part of the interior design and achieving a beautiful effect. From a practical perspective, hinges hidden in the door frame reduce friction with the outside environment, lowering noise levels when opening and closing the door and providing a quieter living environment. Concealed hinges also make the door more compact, improving sound and heat insulation. Ultimately, this contributes to a more comfortable living environment.

[0026] The rotating shaft has protruding ribs 5, which are made of a rigid material. The rotating shaft connecting piece 2 has a U-shaped edge, and the protruding ribs 5 are located in the U-shaped recess, on the same vertical line as the rotating shaft connecting piece 2. There is a ring 6 between the rotating shaft 1 and the U-shaped recess of the rotating shaft connecting piece 3. Within a 90° radius of the center of the ring 6, there are three soft protrusions 7, with an angular spacing of 30° between the soft protrusions 7. The ring 6 and the rotating shaft 1 share a common center. The inner radius of the ring 6 is slightly larger than the radius of the rotating shaft. The gap between the ring 6 and the rotating shaft 1 is smaller than the gap between the protruding ribs 5 and the soft protrusions 7.

[0027] During the opening process, initially, the protruding ridge 5 is outside the 90° range of the ring 6. The ring 6 is fixed to the base 4. During the closing process, the rotating shaft 1 rotates, and the protruding ridge 5 rotates with the rotating shaft 1. When the opening angle is 30°, the protruding ridge 5 on the rotating shaft 1 touches the first soft protrusion 7 on the ring 6, causing the door to jam once. At this time, increased force can pass through the first soft protrusion 7. The protruding ridge 5 is made of hard material, while the protrusion inside the ring is soft, ensuring that increased force can pass through the jam. When the opening angle is 60°, the protruding ridge 5 on the rotating shaft 1 touches the soft protrusion 7, and the door jams again, and so on, achieving jamming at the opening angle of 90°. This allows for fixed control of the door opening angles of 30°, 60°, and 90°, meeting general door opening requirements. At the same time, it is important to control the opening force to avoid excessive force, otherwise the hard ridge 5 will pass directly through the soft protrusion 7, preventing the door from jamming. Of course, more protrusions can be added to allow for greater control over the door opening angle. In daily life, the opening degree of the door can be adjusted according to different needs and scenarios, ensuring ventilation and lighting while preventing the door from opening excessively, taking up too much space, or causing collision damage. It can also reduce the channels for airflow and sound transmission, thus achieving a certain degree of energy saving and sound insulation. Especially in winter, reducing the door opening angle can reduce indoor heat loss and lower energy consumption. At the same time, for places requiring a quiet environment, such as studies and bedrooms, limiting the door opening angle can effectively reduce external noise interference and improve living comfort.

[0028] This utility model discloses an adjustable concealed hinge. The hinge is concealed by a grooved mounting base, achieving an aesthetically pleasing design. Simultaneously, the soft protrusions inside the ring restrict the rotation of the rotating shaft's protruding ridges, controlling the shaft's rotation and thus the door opening angle. It simultaneously fulfills the functions of adjustment and concealment, increasing its usability and enhancing its visual appeal compared to traditional hinges.

[0029] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. An adjustable-angle concealed hinge structure, comprising a rotating shaft, a rotating shaft connecting piece, a door edge fixing piece, and a base, characterized in that, The rotating shaft connecting piece is fixed on the rotating shaft, and the rotating shaft connecting piece is connected to the door edge fixing piece.

2. The adjustable-angle concealed hinge structure according to claim 1, characterized in that, Both the rotating shaft connecting piece and the door edge fixing piece are right-angled plates. The two sides of the rotating shaft connecting piece and the door edge fixing piece overlap and are fixed by screws to form a connecting body.

3. The adjustable-angle concealed hinge structure according to claim 1, characterized in that, The base is fixed inside the door frame. A groove is opened in the door frame, and the groove can completely accommodate the base. The base can completely accommodate the connecting body, and the long side of the base is longer than the length of the diagonal of the connecting body.

4. The adjustable-angle concealed hinge structure according to claim 1, characterized in that, For the rotating shaft, there are protruding ridges provided on the rotating shaft, and the ridges are made of a hard material.

5. The adjustable-angle concealed hinge structure according to claim 1, characterized in that, The edge of the rotating shaft of the rotating shaft connecting piece is in a shape of a rectangle with a hole in the middle, and the ridges are located in the concave part of the rectangle with a hole in the middle and are on the same vertical line as the rotating shaft connecting piece.

6. The adjustable-angle concealed hinge structure according to claim 1, characterized in that, There is a circular ring between the rotating shaft and the concave part of the rotating shaft connecting piece in the shape of a rectangle with a hole in the middle. There are three soft protrusions provided within a 90° range of the center of the inner circle of the circular ring, and the angular spacing of the protrusions is 30°.

7. The adjustable-angle concealed hinge structure according to claim 6, characterized in that, The circular ring and the rotating shaft share the same center, the radius of the inner circle is larger than that of the rotating shaft, and the gap between the circular ring and the rotating shaft is smaller than the connection between the ridges and the soft protrusions.

8. The adjustable-angle concealed hinge structure according to claim 1, characterized in that, When the rotating shaft is in the initial position, the ridges are outside the 90° range where the soft protrusions are provided on the circular ring.

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