Hidden hinge

Abstract

The utility model relates to the field of hinges, and discloses a hidden hinge which comprises a rotating hinge and fixed hinges rotationally arranged on the two sides of the rotating hinge through a rotating shaft, and anti-falling parts used for reducing the probability that the fixed hinges rotationally arranged on the two sides of the rotating hinge fall off from the rotating hinge are arranged between the two ends of the rotating shaft and the two fixed hinges respectively. The inserting plates are arranged on the two sides of the rotating hinge respectively and extend in the axial direction of the rotating shaft, the penetrating grooves are formed in the fixed hinge and allow the inserting plates to penetrate through, and limiting components are further arranged on the inserting plates and can rotate to be flush with the inserting plates so that the inserting plates can be inserted into the penetrating grooves conveniently or rotate to be perpendicular to the inserting plates to limit the fixed hinge. A rotating part for driving the inserting plate to rotate along with the rotating shaft is further arranged between the rotating shaft and the inserting plate, the inserting plate in the mechanism can penetrate through the penetrating groove in the fixed hinge when the fixed hinge is installed on the rotating hinge, the fixed hinge can be limited through the limiting part after the inserting plate penetrates through the penetrating groove, and the probability that the inserting plate is separated from the rotating hinge is reduced.

Description

Technical Field

[0001] The utility model relates to the field of hinges, in particular to a concealed hinge. Background Art

[0002] A Chinese patent with the publication number CN218061932U discloses a door with a concealed hinge, including a door leaf, a door frame and a hinge assembly. The hinge assembly includes a movable leaf fixedly installed on the door leaf and a fixed leaf fixedly arranged on the door frame. There are two fixed leaves which are symmetrically arranged at both ends of the movable leaf, and the movable leaf is rotatably connected to the two fixed leaves through a rotating shaft.

[0003] In the above structure, the movable leaf and the fixed leaf are rotatably connected through a rotating shaft. However, if the friction between the rotating shaft and the fixed leaf is small, the fixed leaf is likely to fall off the movable leaf. When people install the hinge on the door frame and the door leaf, they need to first install a fixed leaf on the door frame, then install the movable leaf with the rotating shaft on the door leaf and insert one end of the rotating shaft into the fixed leaf installed on the door frame, and finally install the other fixed leaf on the door frame and insert the other end of the rotating shaft into the fixed leaf, resulting in a troublesome installation of the hinge. Summary of the Utility Model

[0004] Aiming at the disadvantages of the prior art that if the friction between the rotating shaft and the fixed leaf is small, the fixed leaf is likely to fall off the movable leaf and the installation of the hinge is troublesome, the utility model provides a concealed hinge with a low probability of the fixed leaf falling off during installation.

[0005] To solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A concealed hinge includes a rotating leaf and fixed leaves rotatably arranged on both sides of the rotating leaf through a rotating shaft. Anti-detachment components are respectively arranged between both ends of the rotating shaft and the two fixed leaves for reducing the probability of the fixed leaves rotatably arranged on both sides of the rotating leaf falling off the rotating leaf. The anti-detachment components include insertion plates extending along the axial direction of the rotating shaft respectively arranged on both sides of the rotating leaf and through slots arranged on the fixed leaves for the insertion plates to pass through. A limiting component is also arranged on the insertion plates, which can be rotated to be flush with the insertion plates to facilitate the insertion of the insertion plates into the through slots or rotated to be perpendicular to the insertion plates to limit the fixed leaves. A rotating component is also arranged between the rotating shaft and the insertion plates for driving the insertion plates to rotate together with the rotating shaft.

[0007] By adopting the above scheme, when the fixed leaf is installed on the rotating leaf, the insertion plate can pass through the through slot on the fixed leaf. When the insertion plate passes through the through slot on the fixed leaf, the fixed leaf can be limited by the arranged limiting component, thereby reducing the probability of the fixed leaf falling off the rotating leaf due to the small friction between it and the rotating shaft. The arranged rotating component enables the insertion plate to rotate together with the rotating shaft, so that the fixed leaf and the rotating leaf can rotate normally.

[0008] Preferably, the limiting member includes a limiting plate hinged to the insertion plate through a hinge shaft at the position where the insertion plate extends out of the through groove, and a fixing member for fixing the position of the limiting plate when the limiting plate is turned to be flush with or perpendicular to the insertion plate. When the limiting plate rotates to be perpendicular to the insertion plate, the surface of the limiting plate abuts against the surface of the fixing page mounted on the rotating page.

[0009] Preferably, the fixing member includes a jack vertically arranged on the limiting plate and a limiting pin that can be press-fitted into the jack. On the insertion plate, there is a first limiting hole that is aligned with the jack when the limiting plate rotates to be flush with the insertion plate, and a second limiting hole that is aligned with the jack when the limiting plate rotates to be perpendicular to the insertion plate.

[0010] With the above solution, when the limiting plate rotates to be flush with the insertion plate, the limiting pin is inserted into the first limiting hole on the insertion plate, facilitating the insertion of the insertion plate into the through groove on the fixing page. After the insertion plate passes through the fixing page, the limiting pin can be pulled out from the first limiting hole and the limiting plate can be rotated until the limiting plate rotates to be perpendicular to the insertion plate. At this time, the limiting pin can be inserted into the second limiting hole, enabling the limiting plate to limit the fixing plate and reducing the probability of the fixing page mounted on the rotating page falling off the rotating page.

[0011] Preferably, the rotating member includes opening washers respectively arranged between the two fixing pages and the two ends of the rotating page. The insertion plate is arranged on the opening washers, and a plugging member for reducing the falling of the opening washers from between the fixing page and the rotating page is arranged on the rotating shaft.

[0012] Preferably, at least one anti-detachment member is arranged on a single opening washer.

[0013] With the above solution, setting one anti-detachment member can limit the fixing page mounted on the rotating page and reduce the probability of the fixing page falling off the rotating page. When two or more anti-detachment members are set, the connection between the fixing page and the rotating page can be further improved, thereby further reducing the probability of the fixing page falling off the rotating page.

[0014] Preferably, the plugging member includes clamping grooves respectively arranged at the positions where the two ends of the rotating shaft extend out of the rotating page for partial press-fitting insertion of the opening washers.

[0015] With the above solution, the arranged clamping grooves can be used for partial press-fitting insertion of the opening washers, thereby reducing the probability of the opening washers falling off the rotating shaft.

[0016] Preferably, the distance between the two clamping grooves is equal to the length of the rotating page.

[0017] With the above solution, the distance between the two card slots is equal to the length of the rotating page. When the two opening washers are installed on the rotating shaft, the surface of the opening washer can abut against the side wall of the rotating page, thereby limiting the rotating shaft and reducing the probability of axial movement of the rotating shaft within the rotating page.

[0018] Since the present utility model adopts the above technical solution, it has remarkable technical effects: when the fixed page is installed on the rotating page, the inserted plate provided can pass through the through slot on the fixed page, and when the inserted plate passes through the through slot on the fixed page, the fixed page can be limited by the limiting component provided, thereby reducing the probability that the fixed page falls off the rotating page due to the small friction between it and the rotating shaft. The provided rotating component enables the inserted plate to rotate together with the rotating shaft, so that the fixed page and the rotating page can rotate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an isometric view of a hidden hinge in this embodiment;

[0020] Figure 2 is Figure 1 an enlarged view of part A in

[0021] Figure 3 is an isometric view of the rotating page, rotating shaft and anti - detachment component in this embodiment;

[0022] Figure 4 is Figure 3 an enlarged view of part B in

[0023] Figure 5 is an isometric view of the rotating shaft in this embodiment;

[0024] Figure 6 is an isometric view of the anti - detachment component in this actual embodiment;

[0025] Figure 7 is a split view of the inserted plate and the limiting plate in this embodiment.

[0026] The names of the parts referred to by each digital label in the above drawings are as follows: 1, rotating page; 2, fixed page; 3, through slot; 4, inserted plate; 5, limiting plate; 6, limiting pin; 7, jack; 801, first limiting hole; 802, second limiting hole; 9, opening washer; 10, card slot; 11, rotating shaft; 12, hinge shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The present utility model will be further described in detail below in conjunction with the drawings and embodiments.

[0028] Embodiment

[0029] A hidden hinge, refer to Figure 1 - Figure 2, including a rotating page 1 and fixed pages 2 rotatably arranged on both sides of the rotating page 1 through a rotating shaft 11 (in this embodiment, the fixed pages 2 are installed on door frames, etc., and the rotating page 1 is installed on door leaves, etc.). Anti-detachment components are respectively arranged between both ends of the rotating shaft 11 and the two fixed pages 2 to reduce the probability of the fixed pages 2 rotatably arranged on both sides of the rotating page 1 falling off from the rotating page 1. The anti-detachment components include insertion plates 4 respectively arranged on both sides of the rotating page 1 and extending along the axial direction of the rotating shaft 11, and through slots 3 arranged on the fixed pages 2 for the insertion plates 4 to pass through. A limiting component is also arranged on the insertion plates 4, which can be rotated to be flush with the insertion plates 4 to facilitate the insertion of the insertion plates 4 into the through slots 3 or rotated to be perpendicular to the insertion plates 4 to limit the fixed pages 2. A rotating component is also arranged between the rotating shaft 11 and the insertion plates 4 to drive the insertion plates 4 to rotate together with the rotating shaft 11.

[0030] Reference Figure 1 - Figure 7 , the limiting component includes a limiting plate 5 hinged to the insertion plate 4 through a hinge shaft at the position where the insertion plate 4 extends out of the through slot 3, and a fixing component for fixing the position of the limiting plate 5 when the limiting plate 5 is flipped to be flush or perpendicular to the insertion plate 4. When the limiting plate 5 rotates to be perpendicular to the insertion plate 4, the surface of the limiting plate 5 abuts against the surface of the fixed page 2 installed on the rotating page 1. The fixing component includes a jack 7 vertically arranged on the limiting plate 5 and a limiting pin 6 that can be press-fitted into the jack 7. A first limiting hole 801 that is aligned with the jack 7 when the limiting plate 5 rotates to be flush with the insertion plate 4 and a second limiting hole 802 that is aligned with the jack 7 when the limiting plate 5 rotates to be perpendicular to the insertion plate 4 are arranged on the insertion plate 4.

[0031] The rotating component includes opening washers 9 respectively arranged between the two fixed pages 2 and both ends of the rotating page 1. The insertion plates 4 are arranged on the opening washers 9. A plugging component is arranged on the rotating shaft 11 to reduce the probability of the opening washers 9 falling off between the fixed pages 2 and the rotating page 1. At least one anti-detachment component is arranged on a single opening washer 9. The plugging component includes clamping grooves 10 respectively arranged at both ends of the rotating shaft 11 extending out of the rotating page 1 for the partial press-fitting insertion of the opening washers 9. The distance between the two clamping grooves 10 is equal to the length of the rotating page 1.

[0032] Hinge fixed installation process: When the two fixed pages 2 need to be installed at both ends of the rotating page 1, first, insert the rotating shaft 11 into the rotating page 1 until the two clamping grooves 10 on the rotating shaft 11 are located on both sides of the rotating page 1. At this time, the opening washer 9 can be inserted into the clamping groove 10. Then, align the through groove 3 on the fixed page 2 with the insertion plate 4 on the opening washer 9 and insert it until the surface of the fixed page 2 is in contact with the surface of the opening washer 9. At this time, the limit pin 6 can be pulled out from the first limit hole 801. Then, rotate the limit plate 5 so that the limit plate 5 rotates to be perpendicular to the insertion plate 4. At this time, the surface of the limit plate 5 will also be in contact with the surface of the fixed page 2. Then, insert the limit pin 6 into the second limit hole 802, so that the limit plate 5 limits the fixed page 2 and reduces the probability of detachment from the rotating page 1 on one side. The installation of the fixed page 2 on the other side is the same.

[0033] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A hidden hinge, comprising a rotating leaf (1) and fixed leaves (2) rotatably arranged on both sides of the rotating leaf (1) via a rotating shaft (11), characterized in that: Anti-slip components for reducing the probability of the fixed pages (2) arranged on both sides of the rotating page (1) falling off from the rotating page (1) are respectively arranged between the two ends of the rotating shaft (11) and the two fixed pages (2). The anti-slip components include plug plates (4) arranged on both sides of the rotating page (1) and extending along the axial direction of the rotating shaft (11) and a through groove (3) arranged on the fixed page (2) for the plug plate (4) to pass through. The plug plate (4) is also provided with a limiting component that can be rotated to be flush with the plug plate (4) to facilitate the plug plate (4) to be inserted into the through groove (3) or rotated to be perpendicular to the plug plate (4) to limit the fixed page (2). A rotating component that drives the plug plate (4) to rotate along with the rotating shaft (11) is also provided between the rotating shaft (11) and the plug plate (4).

2. A hidden hinge according to claim 1, characterized in that: The limiting component comprises a limiting plate (5) hingedly connected to the plug plate (4) through a hinge shaft (12) at a position where the plug plate (4) extends out of the through slot (3), and a fixing component for fixing the position of the limiting plate (5) when the limiting plate (5) is flipped to be flush with or perpendicular to the plug plate (4); when the limiting plate (5) is rotated to be perpendicular to the plug plate (4), the surface of the limiting plate (5) abuts against the surface of the fixed page (2) mounted on the rotating page (1).

3. A hidden hinge according to claim 2, characterized in that: The fixing component comprises a plug hole (7) vertically arranged on the limit plate (5) and a limit pin (6) which can be inserted into the plug hole (7) by interference fit; a first limit hole (801) is arranged on the plug plate (4) and is directly opposite to the plug hole (7) when the limit plate (5) is rotated to be flush with the plug plate (4); and a second limit hole (802) is arranged on the plug plate (4) and is directly opposite to the plug hole (7) when the limit plate (5) is rotated to be perpendicular to the plug plate (4).

4. A concealed hinge according to claim 1, characterized in that: The rotating component comprises an open washer (9) respectively arranged between two fixed pages (2) and two ends of the rotating page (1); the plug plate (4) is arranged on the open washer (9); and a plug-in component for reducing the open washer (9) from falling from between the fixed page (2) and the rotating page (1) is arranged on the rotating shaft (11).

5. A hidden hinge according to claim 4, characterized in that: At least one anti-dropping component is arranged on the single open gasket (9).

6. A hidden hinge according to claim 4, characterized in that: The plug-in component comprises a clamping groove (10) which is respectively arranged at both ends of the rotating shaft (11) and extends outward from the rotating leaf (1) and is used for partial interference insertion of the open gasket (9).

7. A hidden hinge according to claim 6, characterized in that: The distance between the two snap-fit ​​grooves (10) is equal to the length of the rotating page (1).

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