Hidden door hinge

Abstract

The hidden door is used for hiding a door frame, the door frame comprises a first wall, the hidden door hinge comprises a hinge structure, the hinge structure comprises a first mounting plate, the first mounting plate is arranged on the first wall, the hinge structure further comprises a cross arm, and the cross arm is arranged on the side wall, away from the first wall, of the first mounting plate; the ends, away from the first mounting plate, of the cross arms are connected with hidden doors through hinges, and the cross arms stretch out and draw back to drive the hidden doors to move so as to be away from and close to the door frame. Therefore, when the hidden door is opened, the cross arm extends to push the hidden door to be away from the door frame, so that the hidden door can rotate around the hinge conveniently, and the hidden door can be opened conveniently; when the concealed door is closed, the concealed door is pushed to enable the cross arm to contract, so that the concealed door is close to the door frame, the concealed door can be guaranteed to be consistent with the whole wall surface, uneven positions are avoided, and the whole attractiveness of the wall surface is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of home building materials, and in particular to a concealed door hinge. Background Art

[0002] With the progress of society and the continuous improvement of living standards, in order to improve the integrity and aesthetics of home decoration, people's requirements for doors and windows in home products are gradually increasing. Invisible doors are increasingly used in the home field because they can make the space more integrated and visually neater.

[0003] The invisible door has no handle on the outside, and it is not easy to directly observe the shape, size and style of the door after closing. Because there is no handle, it is inconvenient to open the invisible door, so we propose the hidden door hinge. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a concealed door hinge.

[0005] In a first aspect, the present application provides a concealed door hinge, the concealed door is used for a concealed door frame, the door frame includes a first wall and a second wall opposite to each other, and the concealed door hinge includes:

[0006] A hinge structure, the hinge structure comprising a first mounting plate, the first mounting plate being arranged on the first wall;

[0007] The hinge structure also includes a cross arm, which is arranged on the side wall of the first mounting plate away from the first wall, and one end of the cross arm away from the first mounting plate is connected to the hidden door through a hinge, and the cross arm is telescopic to drive the hidden door closer to or away from the door frame.

[0008] According to the technical solution provided in the embodiment of the present application, the cross arm includes two parallel second mounting plates, a first rotating hole is opened in the middle of the two second mounting plates, the cross arm also includes a first connecting rod, a second rotating hole is opened in the middle of the first connecting rod, a rotating shaft passes through the first rotating hole and the second rotating hole to enable the first connecting rod and the second mounting plate to be rotatably connected, a third rotating hole and a fourth rotating hole are respectively opened at both ends of the first connecting rod, and the fourth rotating hole is a long strip hole.

[0009] According to the technical solution provided in the embodiment of the present application, the cross arm also includes a second connecting rod and a third connecting rod, the second connecting rod and the third connecting rod are respectively located on both sides of the first connecting rod, and are respectively located at the upper end and the lower end of the second mounting plate, the close ends of the second connecting rod and the third connecting rod are respectively fixedly connected to both sides of the second mounting plate, a fifth rotating hole is opened at the end of the second connecting rod away from the second mounting plate, and a sixth rotating hole is opened at the end of the third connecting rod away from the second mounting plate, and the sixth rotating hole is a long hole.

[0010] According to the technical solution provided in the embodiment of the present application, a first movable groove is provided on the side wall of the first mounting plate away from the first wall corresponding to the fifth rotating hole, a first mounting bolt is arranged in the first movable groove, one end of which extends to the outside of the first mounting plate and passes through the fifth rotating hole, and two locking nuts are threaded on the first mounting bolt, a first screw connection member is provided in the fifth rotating hole, a screw connection member has a screw connection groove corresponding to the first mounting bolt, and the first screw connection member and the fifth rotating hole are rotatably connected.

[0011] According to the technical solution provided in the embodiment of the present application, a second movable groove is provided on the side wall of the first mounting plate away from the first wall corresponding to the fourth rotating hole, a second mounting bolt is arranged in the second movable groove, one end of which extends to the outside of the first mounting plate and passes through the fourth rotating hole, and two locking nuts are threaded on the second mounting bolt, a second screw connection member is provided in the fourth rotating hole, a screw connection groove is provided on the second screw connection member corresponding to the second mounting bolt, and the second screw connection member and the fourth rotating hole are rotatably connected.

[0012] According to the technical solution provided in the embodiment of the present application, the third rotating hole and the sixth rotating hole are connected to the hinge via connecting bolts, and the end of the hinge away from the cross arm is connected to a connecting frame, and the hidden door is provided on the connecting frame.

[0013] According to the technical solution provided in the embodiment of the present application, a third movable groove is opened in the middle of the side wall of the first mounting plate away from the first wall, and a mounting frame seat is arranged on the second wall. A rebounder is arranged on the side wall of the mounting frame seat away from the second wall and on the third movable groove through a connecting piece, and a locking hook is arranged on the connecting frame corresponding to the rebounder.

[0014] In summary, the technical solution specifically discloses a concealed door hinge, the concealed door is used to conceal a door frame, and can maintain consistency and aesthetics with the wall surface, the door frame includes a first wall, the concealed door hinge includes a hinge structure, the hinge structure includes a first mounting plate, the first mounting plate is arranged on the first wall, and a cross arm is arranged on a side wall of the first mounting plate away from the first wall, the end of the cross arm away from the first mounting plate is connected to the concealed door through the hinge, and the cross arm can be extended to drive the concealed door to move, so as to drive the concealed door away from and close to the door frame;

[0015] Therefore, when opening the hidden door, the cross arm is extended to push the hidden door away from the door frame, which makes it easier for the hidden door to rotate around the hinge, thereby facilitating the opening of the hidden door; when the hidden door needs to be closed, the cross arm is contracted by pushing the hidden door, so that the hidden door is close to the door frame, thereby ensuring that the hidden door can be consistent with the overall wall surface without any unevenness, thereby ensuring the overall aesthetics of the wall surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 This is a schematic diagram of the concealed door hinge in the open state.

[0018] Figure 2 Schematic diagram of the first mounting bolt.

[0019] Figure 3 Schematic diagram of the second mounting bolt.

[0020] Figure 4 Schematic diagram of hinge.

[0021] Figure 5 Schematic diagram of the rebounder.

[0022] Figure 6 Schematic diagram of the installation frame.

[0023] Numbers in the figure: 1. concealed door; 2. first mounting plate; 3. cross arm; 4. hinge; 5. second mounting plate; 6. first rotating hole; 7. first connecting rod; 8. third rotating hole; 9. fourth rotating hole; 10. second connecting rod; 11. third connecting rod; 12. fifth rotating hole; 13. sixth rotating hole; 14. first movable groove; 15. first mounting bolt; 16. locking nut; 17. first threaded connection; 18. second movable groove; 19. second mounting bolt; 20. second threaded connection; 21. connecting frame; 22. third movable groove; 23. mounting frame seat; 24. rebounder; 25. locking hook; 26. limiting part; 27. first connecting part; 28. second connecting part; 29. ​​mounting hole; 30. third mounting plate; 31. fourth movable groove; 32. fourth mounting plate; 33. fifth movable groove. DETAILED DESCRIPTION

[0024] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the inventions. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] Embodiment 1

[0027] Please refer to Figure 1 The schematic diagram of the concealed door hinge opening state shown in the figure, at this time, the concealed door 1 is perpendicular to the wall, the concealed door 1 is used to conceal the door frame, no handle is installed on the outside, and it is not easy to directly observe the shape, size and style of the door after closing;

[0028] The door frame includes a first wall and a second wall which are parallel to each other. The concealed door hinge includes a hinge structure. The hinge structure includes a first mounting plate 2. The first mounting plate 2 is arranged on the first wall. Its length direction extends along the first direction. The side wall of the first mounting plate 2 away from the first wall is the first side wall. The first moving groove 14, the third moving groove 22 and the second moving groove 18 are sequentially arranged on the first side wall along the length direction of the first mounting plate 2. The first moving groove 14 and the second moving groove 18 are respectively located at the top and the bottom of the first side wall. The length directions of the first moving groove 14, the third moving groove 22 and the second moving groove 18 all extend along the second direction. The first direction is Figure 1 The middle vertical direction, the second direction is Figure 1 In the horizontal direction, the first direction is perpendicular to the second direction.

[0029] The hinge structure further includes a cross arm 3, which includes two parallel second mounting plates 5, and a first rotation hole 6 is formed through the second mounting plate 5. The cross arm 3 further includes a first connecting rod 7, and a second rotation hole is formed in the middle of the first connecting rod 7 corresponding to the first rotation hole 6. The rotation axis passes through the first rotation hole 6 and the second rotation hole to form a rotation connection between the first connecting rod 7 and the second mounting plate 5, so that the first connecting rod 7 and the second mounting plate 5 can form a relative rotation around the rotation axis;

[0030] The first connecting rod 7 has two ends through which a third rotating hole 8 and a fourth rotating hole 9 are respectively formed, wherein the fourth rotating hole 9 is a long hole, a second mounting bolt 19 is arranged in the second movable groove 18, a limiting portion 26 is arranged at one end of the second mounting bolt 19, and the limiting portion 26 is adapted to the second movable groove 18 to prevent the second mounting bolt 19 from rotating, the other end of the second mounting bolt 19 extends through and extends outside the second movable groove 18, and passes through the fourth rotating hole 9, and two locking nuts 16 (such as Figure 3 ), a second screw connection member 20 is disposed inside the fourth rotating hole 9, which has a screw connection groove corresponding to the second mounting bolt 19 and is screwed to the second mounting bolt 19, and the second screw connection member 20 is rotatably connected to the fourth rotating hole 9;

[0031] Therefore, by screwing the second screw joint 20, the second screw joint 20 and the second mounting bolt 19 rotate relative to each other, so that the first connecting rod 7 and the second mounting bolt 19 are loosened, and then the locking nut 16 is screwed to loosen the second mounting bolt 19 and the first mounting plate 2, and then the second mounting bolt 19 can be moved along the second movable groove 18 to adjust the position of the first connecting rod 7, and then the locking nut 16 and the second mounting bolt 19 are tightened as well as the second screw joint 20 and the second mounting bolt 19, thereby limiting and fixing the first connecting rod 7 whose position has been adjusted.

[0032] The cross arm 3 further includes a second connecting rod 10 and a third connecting rod 11, which are respectively located on both sides of the first connecting rod 7 and respectively located above and below the second mounting plate 5. The ends of the second connecting rod 10 and the third connecting rod 11 that are close to each other are respectively fixedly connected to both sides of the second mounting plate 5. Optionally, the connection method is welding connection, whereby the first connecting rod 7, the second connecting rod 10 and the third connecting rod 11 form an X-shaped structure, and the end of the second connecting rod 10 away from the second mounting plate 5 is penetrated by a fifth rotating hole 12, and the end of the third connecting rod 11 away from the second mounting plate 5 is penetrated by a sixth rotating hole 13, wherein the sixth rotating hole 13 is a long hole;

[0033] A first mounting bolt 15 is disposed in the first moving groove 14, and a limiting portion 26 is disposed at one end of the first mounting bolt 15, and the limiting portion 26 is adapted to the first moving groove 14 to prevent the first mounting bolt 15 from rotating. The other end of the first mounting bolt 15 extends through the first moving groove 14 and through the fifth rotating hole 12. Two locking nuts 16 (such as 16A, 16B, 16C) are screwed on the first mounting bolt 15 between the first mounting plate 2 and the second connecting rod 10. Figure 2 ), a first screw member 17 is disposed inside the fifth rotating hole 12, which has a screw groove corresponding to the first mounting bolt 15 and is screwed to the first mounting bolt 15, and the first screw member 17 is rotatably connected to the fifth rotating hole 12;

[0034] Therefore, by screwing the first screw joint 17, the first screw joint 17 and the first mounting bolt 15 rotate relative to each other, so that the second connecting rod 10 and the first mounting bolt 15 are loosened, and then the locking nut 16 is screwed to loosen the first mounting bolt 15 and the first mounting plate 2, and then the first mounting bolt 15 can be moved along the first movable groove 14 to adjust the position of the second connecting rod 10, and then the locking nut 16 and the first mounting bolt 15 are tightened as well as the first screw joint 17 and the first mounting bolt 15, thereby limiting and fixing the second connecting rod 10 whose position has been adjusted.

[0035] The third rotating hole 8 and the sixth rotating hole 13 are both connected with hinges 4 via connecting bolts. Figure 4 As shown, the hinge 4 includes a first connecting portion 27 and a second connecting portion 28 that rotate relative to each other, wherein the second connecting portion 28 is a bent structure with a mounting hole 29 formed thereon, and the hinge 4 near the third rotating hole 8 is installed by connecting bolts that penetrate the third rotating hole 8 and the mounting hole 29 of the hinge 4 in sequence and are connected with nuts, and the hinge 4 near the sixth rotating hole 13 is installed by connecting bolts that penetrate the sixth rotating hole 13 and the mounting hole 29 of the hinge 4 in sequence and are connected with nuts, thereby connecting the two hinges 4 to the cross arm 3.

[0036] The first connecting parts 27 of the two hinges 4 are jointly connected to a connecting frame 21. Optionally, the connecting frame 21 is a rectangular frame, and its side wall away from the hinge 4 is connected to a hidden door 1. The hidden door 1 can optionally be an item with material specifications, colors, and materials that are coordinated with the tiles (marble) and other materials on the wall to achieve consistency and aesthetics of the wall.

[0037] The third moving groove 22 is opened in the middle of the first side wall, and a rebounder 24 is provided through a connecting piece;

[0038] Specifically, a nut is provided in the third moving groove 22, and the connecting member may be a bolt, through which the bolt passes through the rebounder 24 and is screwed into the nut, the rebounder 24 is installed, and the connection between the bolt and the nut is loosened by screwing the bolt, and then the rebounder 24 can be moved along the third moving groove 22, and then the bolt and the nut are tightened, so that the rebounder 24 after the position is adjusted can be limited and fixed;

[0039] A rebounder 24 is provided on the second wall;

[0040] Specifically, Figure 5 and Figure 6 As shown, a mounting frame 23 is provided on the second wall, and the mounting frame 23 includes a third mounting plate 30, on which two fourth movable grooves 31 extending along the second direction are provided, and bolts are passed through the fourth movable grooves 31 and extend to the inside of the second wall, thereby installing the mounting frame 23, and by moving the mounting frame 23, the position of the mounting frame 23 on the second wall can be adjusted;

[0041] The mounting frame 23 further includes a fourth mounting plate 32, on which two fifth moving grooves 33 extending along the first direction are formed, and the rebounder 24 is mounted on the mounting frame 23 by bolts penetrating the rebounder 24 and the fifth moving grooves 33, and the position of the rebounder 24 can be adjusted by tightening the bolts;

[0042] The type of the rebounder 24 is, for example: an elephant trunk rebounder;

[0043] The connection frame 21 is provided with locking hooks 25 corresponding to the two rebounders 24 .

[0044] Working principle: When the hidden door 1 is closed, the hidden door 1 is coordinated with the wall surface to achieve the effect of aesthetics and consistency. When the hidden door 1 needs to be opened, the middle of the hidden door 1 is pressed and then released. The hidden door 1 can be bounced open by the characteristics of the rebounder 24. Through the structure of the cross arm 3, the first connecting rod 7 can rotate around the rotating shaft, and the second connecting rod 10 and the third connecting rod 11 also rotate around the rotating shaft, so that the cross arm 3 of the X-shaped structure is unfolded, pushing the hidden door 1 away from the wall surface, and then the hidden door 1 is rotated around the hinge 4, so that the hidden door 1 can be opened;

[0045] When the hidden door 1 needs to be closed, the hidden door 1 only needs to be rotated around the hinge 4 to approach the wall, and then the hidden door 1 is pressed to connect the lock hook 25 on the connecting frame 21 with the rebounder 24, and the hidden door 1 can be closed;

[0046] The cross arm 3 can be used to push the hidden door 1 away from the wall when opening the door, making it convenient to open the hidden door 1. The hinge of the hidden door is made of stainless steel to achieve fireproof, anti-corrosion and durable effects. The overall strength of the structure is strong, which can effectively prevent the hidden door 1 from falling due to excessive weight. Even if it falls, the hidden door 1 can be adjusted by adjusting the position of the cross arm 3 at the first mounting plate 2, and the position of the rebounder 24 can also be adjusted accordingly, which can ensure the flatness and consistency of the hidden door 1 and the wall, and ensure the aesthetics of use.

[0047] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

Claims

1. Concealed door hinge, characterized in that: The concealed door (1) is used for concealing a door frame, the door frame comprising a first wall and a second wall opposite to each other, and the concealed door hinge comprises: A hinge structure, the hinge structure comprising a first mounting plate (2), the first mounting plate (2) being arranged on the first wall; The hinge structure further comprises a cross arm (3), the cross arm (3) being arranged on a side wall of the first mounting plate (2) away from the first wall, and one end of the cross arm (3) away from the first mounting plate (2) is connected to a connection frame (21) via a hinge (4), the connection frame (21) being provided with the concealed door (1), and the cross arm (3) is telescopic to drive the concealed door (1) to move closer to or away from the door frame; A third movable groove (22) is provided in the middle of the side wall of the first mounting plate (2) away from the first wall, a mounting frame seat (23) is provided on the second wall, a rebounder (24) is provided on the side wall of the mounting frame seat (23) away from the second wall and on the third movable groove (22) via a connecting piece, and a locking hook (25) is provided on the connecting frame (21) corresponding to the rebounder (24).

2. The concealed door hinge according to claim 1, characterized in that: The cross arm (3) comprises two parallel second mounting plates (5), a first rotation hole (6) is formed in the middle of the two second mounting plates (5), the cross arm (3) further comprises a first connecting rod (7), a second rotation hole is formed in the middle of the first connecting rod (7), a rotating shaft passes through the first rotation hole (6) and the second rotation hole so that the first connecting rod (7) and the second mounting plate (5) are rotatably connected, and a third rotation hole (8) and a fourth rotation hole (9) are formed at both ends of the first connecting rod (7), respectively, and the fourth rotation hole (9) is a long hole.

3. The concealed door hinge according to claim 2, characterized in that: The cross arm (3) further comprises a second connecting rod (10) and a third connecting rod (11), wherein the second connecting rod (10) and the third connecting rod (11) are respectively located on both sides of the first connecting rod (7) and are respectively located on the upper end and the lower end of the second mounting plate (5), and the ends of the second connecting rod (10) and the third connecting rod (11) that are close to each other are respectively fixedly connected to both sides of the second mounting plate (5), and a fifth rotating hole (12) is formed at one end of the second connecting rod (10) away from the second mounting plate (5), and a sixth rotating hole (13) is formed at one end of the third connecting rod (11) away from the second mounting plate (5), and the sixth rotating hole (13) is a long hole.

4. The concealed door hinge according to claim 3, characterized in that: A first movable groove (14) is provided on the side wall of the first mounting plate (2) away from the first wall, corresponding to the fifth rotating hole (12); a first mounting bolt (15) is provided in the first movable groove (14), one end of which extends to the outside of the first mounting plate (2) and passes through the fifth rotating hole (12); two locking nuts (16) are screwed on the first mounting bolt (15); a first screw connection member (17) is provided in the fifth rotating hole (12), a screw connection groove is provided on the first screw connection member (17) corresponding to the first mounting bolt (15), and the first screw connection member (17) and the fifth rotating hole (12) are rotatably connected.

5. The concealed door hinge according to claim 4, characterized in that: A second movable groove (18) is provided on the side wall of the first mounting plate (2) away from the first wall, corresponding to the fourth rotating hole (9); a second mounting bolt (19) is provided in the second movable groove (18), one end of which extends to the outside of the first mounting plate (2) and passes through the fourth rotating hole (9); two locking nuts (16) are screwed on the second mounting bolt (19); a second screw connection member (20) is provided in the fourth rotating hole (9), a screw connection groove is provided on the second screw connection member (20) corresponding to the second mounting bolt (19), and the second screw connection member (20) is rotatably connected to the fourth rotating hole (9).

6. The concealed door hinge according to claim 5, characterized in that: The third rotating hole (8) and the sixth rotating hole (13) are both connected to the hinge (4) via connecting bolts, and an end of the hinge (4) away from the cross arm (3) is connected to a connecting frame (21), and the concealed door (1) is arranged on the connecting frame (21).

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