Concealed hinge on door

Abstract

The utility model discloses a concealed hinge on a door, which comprises a door face hinge seat fixedly connected to a door leaf and a door frame hinge seat arranged on a door frame section bar, a door face hinge box is arranged in the door face hinge seat, and a door face piece bearing piece is movably connected to the door face hinge box. A door frame hinge box is arranged in the door frame hinge base, the door face piece bearing piece is movably connected with the door frame hinge box through a door frame bearing piece, the door frame hinge box is movably connected with a door frame guide piece, and the door frame guide piece is movably connected with the door face hinge box through a door face guide piece. The bearing sheets of the door surface and the door frame and the guide sheets of the door surface and the door frame are separately arranged, so that the bearing capacity and the stability are improved, the bearing capacity is enhanced, the service life is prolonged, and the door is more beneficial to meeting the use requirements.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to a concealed hinge for doors. Background Technology

[0002] A hinge, also known as a door hinge, is a mechanical device used to connect two solid objects and allow relative rotation between them. Hinges are divided into exposed hinges and concealed hinges. Concealed hinges are increasingly favored due to their advantages such as economy, practicality, sturdiness, and aesthetic appeal. In existing concealed hinges, the hinge axis is hidden inside the outer door panel. Two hinge plates are fixed to the inner side of the inner door panel and the inner side of the door frame, respectively. The hinge plate on the door frame has a groove for the other hinge plate to move within, and a pivot is installed in the groove to connect the other hinge plate. However, in commercially available models, the load-bearing plates and guide plates of the door panel and frame are all integrated. This design is prone to insufficient load-bearing capacity and damage, significantly shortening the service life. Therefore, improvements are necessary. Utility Model Content

[0003] (a) Technical problems that need to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a concealed hinge for doors, in which the load-bearing plates of the door panel and door frame, as well as the guide plates of the door panel and door frame, are set separately. This not only improves the load-bearing capacity and stability, but also enhances the load-bearing capacity and extends the service life, making it more conducive to meeting usage needs.

[0005] (II) Technical solutions required

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A concealed hinge for a door includes a door panel hinge seat fixedly connected to the door leaf and a door frame hinge seat disposed on the door frame profile. The door panel hinge seat has a door panel hinge box inside, and a door panel load-bearing plate is movably connected to the door panel hinge box. The door frame hinge seat has a door frame hinge box inside, and the door panel load-bearing plate and the door frame hinge box are movably connected through the door frame load-bearing plate. A door frame guide plate is movably connected to the door frame hinge box, and the door frame guide plate is movably connected to the door panel hinge box through the door panel guide plate.

[0008] Preferably, it further includes an adjustment component disposed inside the door hinge seat for adjusting the gap between the door hinge seat and the door frame hinge seat.

[0009] Preferably, the adjustment assembly includes an adjustment slide plate disposed in the door hinge seat. The adjustment slide plate is L-shaped and is connected to the door hinge seat by an adjustment screw, and an adjustment nut is disposed on the adjustment screw.

[0010] Preferably, the adjusting screw is installed from one side of the door panel load-bearing plate.

[0011] Preferably, the adjusting slide plate and the door hinge box are locked together by a fastener, and the door hinge box is provided with a first oblong hole, in which the fastener is installed.

[0012] Preferably, the fixing component is a fixing screw.

[0013] Preferably, one end of the door panel load-bearing plate is connected to the door panel hinge box via a first rotating shaft, and the door panel load-bearing plate rotates back and forth in the door panel hinge box with the first rotating shaft as the fulcrum. The other end of the door panel load-bearing plate is movably connected to the door frame load-bearing plate via a first movable shaft, and the door frame load-bearing plate is movably connected to the door frame hinge box via a first rotating shaft.

[0014] Preferably, the gantry guide plate and the gantry hinge box are movably connected by a second rotating shaft, the gantry guide plate and the door panel guide plate are movably connected by a second movable shaft, and the door panel guide plate and the door panel hinge box are connected by a second rotating shaft.

[0015] Preferably, the gantry hinge seat and the gantry hinge box are connected by a locking member.

[0016] Preferably, the gantry hinge box is provided with a second oblong hole, and the locking component is generally a locking screw.

[0017] (III) Technical Effects to be Achieved

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] Firstly, the door hinge base of this utility model has a door hinge box inside, and a door panel load-bearing plate is movably connected to the door hinge box. The door frame hinge base has a door frame hinge box inside, and the door panel load-bearing plate and the door frame hinge box are movably connected through the door frame load-bearing plate. A door frame guide plate is movably connected to the door frame hinge box, and the door frame guide plate is movably connected to the door hinge box through the door frame guide plate. The load-bearing plates of the door panel and the door frame, as well as the guide plates of the door panel and the door frame, are all set separately, which not only improves the load-bearing capacity and stability, but also strengthens the load-bearing capacity and extends the service life, making it more conducive to meeting the needs of use.

[0020] Secondly, the door hinge seat of this utility model has a door hinge box inside, and a door panel load-bearing plate is movably connected to the door hinge box. The door frame hinge seat has a door frame hinge box inside, and the door panel load-bearing plate and the door frame hinge box are movably connected through the door frame load-bearing plate. A door frame guide plate is movably connected to the door frame hinge box, and the door frame guide plate is movably connected to the door hinge box through the door frame guide plate. In terms of structure, assembly and adjustment are more convenient, installation and debugging are easier, and it is more conducive to meeting the needs of use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the present invention in the closed state.

[0022] Figure 2 This is a schematic diagram of the open state of this utility model.

[0023] Figure 3 This is a schematic diagram of the structure of the present invention in the open state.

[0024] Figure 4 This is a schematic diagram of the main view direction of the adjustable sliding plate of this utility model.

[0025] Figure 5 This is a schematic diagram of the side view of the adjustable skateboard of this utility model.

[0026] Figure 6 This is a schematic diagram of the door hinge box structure of this utility model.

[0027] Figure 7 This is a schematic diagram of the main view of the load-bearing panel of the door panel of this utility model.

[0028] Figure 8 This is a side view structural diagram of the load-bearing panel of the door panel of this utility model.

[0029] Figure 9 This is a schematic diagram of the first rotating shaft structure of this utility model.

[0030] Figure 10 This is a schematic diagram of the first movable shaft structure of this utility model.

[0031] Figure 11 This is a schematic diagram of the first rotating shaft structure of this utility model.

[0032] Figure 12 This is a schematic diagram of the gantry hinge seat of this utility model from the front view.

[0033] Figure 13 This is a top view of the gantry hinge seat of this utility model.

[0034] Figure 14 This is a schematic diagram of the gantry hinge box of this utility model from the front view.

[0035] Figure 15 This is a top view of the door frame hinge box of this utility model.

[0036] Figure 16 This is a top view of the gantry load-bearing plate of this utility model.

[0037] Figure 17 This is a schematic diagram of the main view of the gantry load-bearing plate of this utility model.

[0038] Figure 18 This is a schematic diagram of the gantry guide plate structure of this utility model.

[0039] Figure 19 This is a schematic diagram of the structure of the door guide plate of this utility model.

[0040] Figure 20 This is a schematic diagram of the second movable shaft structure of this utility model.

[0041] Figure 21 This is a schematic diagram of the rivet structure of this utility model.

[0042] Figure 22 This is a top view of the door hinge seat of this utility model.

[0043] Figure 23 This is a side view of the present invention.

[0044] Figure 24 This is a schematic diagram of an embodiment of the present invention with a decorative piece.

[0045] Figure 25 This is a schematic diagram of the decorative piece structure of this utility model.

[0046] In the diagram: 1, door hinge seat; 2, door frame hinge seat; 3, door hinge box; 4, door panel load-bearing plate; 5, door frame hinge box; 6, door frame load-bearing plate; 7, door frame guide plate; 8, door panel guide plate; 9, adjusting assembly; 10, rivet; 11, decorative piece; 31, first oblong hole; 41, first rotating shaft; 42, first movable shaft; 43, first rotating shaft; 51, second oblong hole; 71, second rotating shaft; 72, second movable shaft; 73, second rotating shaft; 91, adjusting slide plate; 92, adjusting screw; 93, adjusting nut. Detailed Implementation

[0047] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0048] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0049] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0051] Example 1: See Figures 1 to 20A concealed hinge for a door includes a door hinge seat 1 fixedly connected to the door leaf and a door frame hinge seat 2 disposed on the door frame profile. The door hinge seat 1 contains a door hinge box 3, and a door panel load-bearing plate 4 is movably connected to the door hinge box 3. The door frame hinge seat 2 contains a door frame hinge box 5. The door panel load-bearing plate 4 and the door frame hinge box 5 are movably connected via a door frame load-bearing plate 6. A door frame guide plate 7 is movably connected to the door frame hinge box 5, and the door frame guide plate 7 is movably connected to the door hinge box 3 via a door panel guide plate 8. The door panel load-bearing plate 4, door frame load-bearing plate 6, door frame guide plate 7, and door frame guide plate 8 are separately disposed, which not only improves load-bearing capacity and stability but also enhances service life, making it more suitable for meeting usage needs.

[0052] Example 2: This can be explained based on Example 1, such as... Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 22 and Figure 23 As shown, the system also includes an adjustment component 9 disposed inside the door hinge seat 1 for adjusting the gap between the door hinge seat 1 and the door frame hinge seat 2. Adjusting the adjustment component 9 facilitates adjusting the gap between the door hinge seat 1 and the door frame hinge seat 2, which is beneficial for installation. Further, the adjustment component 9 includes an adjustment slide plate 91 disposed in the door hinge seat 1. The adjustment slide plate 91 is L-shaped and is connected to the door hinge seat 1 via an adjustment screw 92. To enhance locking, an adjustment nut 93 is provided on the adjustment screw 92. By adjusting the tightness of the adjustment screw 92 and the adjustment nut 93, the position of the adjustment slide plate 91 can be changed, thereby adjusting the gap between the door hinge seat 1 and the door frame hinge seat 2, allowing users to adjust according to actual conditions. The adjustment screw 92 is installed from one side of the door panel load-bearing plate 4, which facilitates manual operation during use, making it more convenient for users. To further explain, the adjusting slide plate 91 and the door hinge box 3 are locked together by fasteners (two of which are used in this example). In this embodiment, the fasteners are fixing screws. The door hinge box 3 is provided with a first oblong hole 31, in which the fastener is installed. In use, the fasteners between the adjusting slide plate 91 and the door hinge box 3 are loosened, and the door can be moved through the first oblong hole 51 on the door hinge box 3 to adjust the height of the door frame.

[0053] The adjusting slide plate 91 is inserted into the door hinge seat 1, and the adjusting screw 92 (lead screw nut) is screwed in from the side of the door panel load-bearing plate 4. In use, simply rotate the adjusting screw 92 with an Allen wrench. Utilizing the lead screw nut principle, the adjusting screw 92 drives the adjusting slide plate 91 to slide within the door hinge seat 1. Clockwise rotation of the adjusting screw 92 reduces the gap between the door hinge seat 1 and the door frame hinge seat 2, while counterclockwise rotation increases the gap. This not only makes operation convenient but also facilitates adjustments based on actual needs.

[0054] Example 3: This can be described based on Example 1 or Example 2, such as... Figures 1 to 3 as well as Figures 6 to 20 As shown, one end of the door panel load-bearing plate 4 is connected to the door panel hinge box 3 via a first rotating shaft 41. The door panel load-bearing plate 4 rotates back and forth in the door panel hinge box 3 with the first rotating shaft 41 as the fulcrum. The other end of the door panel load-bearing plate 4 is movably connected to the door frame load-bearing plate 6 via a first movable shaft 42. The door frame load-bearing plate 6 is movably connected to the door frame hinge box 5 via a first rotating shaft 43. This arrangement facilitates the back and forth rotation of the door panel load-bearing plate 4 and the door frame load-bearing plate 6. To further explain, the gantry guide plate 7 and the gantry hinge box 5 are movably connected by a second rotating shaft 71. The gantry guide plate 7 and the door panel guide plate 8 are movably connected by a second movable shaft 72. The door panel guide plate 8 and the door panel hinge box 3 are connected by a second rotating shaft 73. This arrangement facilitates the back-and-forth rotation of the gantry guide plate 7 and the door panel guide plate 8. Structurally, this arrangement allows the door panel hinge and the gantry hinge to rotate freely and flexibly between 0 and 180 degrees, providing convenience for the user. In this embodiment, the door panel load-bearing plate 4 and the gantry load-bearing plate 6 are connected by a first movable shaft 42, and the gantry guide plate 7 and the door panel guide plate 8 are connected by a second movable shaft 72. The first movable shaft 42 and the second movable shaft 72 are connected by pins at both ends. This clever pin connection not only facilitates manufacturing but also allows the door panel hinge and the gantry hinge to rotate freely and flexibly between 0 and 180 degrees.

[0055] Example 4: This can be described based on Example 1, Example 2, or Example 3, such as... Figure 1 and Figure 2 As shown, the door frame hinge seat 2 and the door frame hinge box 5 are connected by a locking component. Specifically, the door frame hinge box 5 is provided with a second oblong hole 51. The locking component is generally a locking screw. In use, it is only necessary to loosen the locking screws of the door frame hinge seat 2 and the door frame hinge box 5, and the door can be moved through the first oblong hole 51 on the door frame hinge box 5 to achieve the vertical adjustment of the door.

[0056] Example 5: Based on Example 1, Example 2, Example 3, or Example 4, the gantry load-bearing plate 6 and the door guide plate 8 are connected by rivets 10. Figure 3 and Figure 21 (As shown) The connection facilitates implementation.

[0057] Example 6: This can be described based on Example 1, Example 2, Example 3, Example 4, or Example 5, such as... Figure 24 and Figure 25 As shown, decorative pieces 11 are provided on both the door hinge seat 1 and the door frame hinge seat 2, which makes the overall structure more novel and more conducive to meeting the user's needs.

[0058] Currently, hinges on the market that can truly open to 180 degrees are made of either stainless steel or aluminum. Stainless steel hinges are more expensive, while aluminum hinges have lower load-bearing capacity. This new door design offers convenient assembly and adjustment, making installation and debugging easy. Furthermore, the load-bearing plates and guide plates for the door panel and frame are designed and manufactured separately, emphasizing the hinge's load-bearing capacity and stability, thus extending its lifespan. Finally, it boasts a sophisticated overall appearance, higher cost-effectiveness, and better meets user needs.

[0059] All standard parts used in this application can be purchased from the market, and the specific connection methods of each part adopt conventional methods such as bolts and rivets that are mature in the existing technology, which will not be described in detail here.

[0060] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A concealed hinge for a door, comprising a door hinge seat (1) fixedly connected to the door leaf and a door frame hinge seat (2) disposed on the door frame profile, characterized in that: The door hinge seat (1) is provided with a door hinge box (3) inside. A door panel load-bearing plate (4) is movably connected to the door hinge box (3). A door frame hinge seat (2) is provided with a door frame hinge box (5) inside. The door panel load-bearing plate (4) and the door frame hinge box (5) are movably connected through a door frame load-bearing plate (6). A door frame guide plate (7) is movably connected to the door frame hinge box (5). The door frame guide plate (7) and the door hinge box (3) are movably connected through a door frame guide plate (8).

2. The concealed hinge on the door as described in claim 1, characterized in that: It also includes an adjustment component (9) provided inside the door hinge seat (1) for adjusting the gap between the door hinge seat (1) and the door frame hinge seat (2).

3. The concealed hinge on the door as described in claim 2, characterized in that: The adjustment assembly (9) includes an adjustment slide plate (91) disposed in the door hinge seat (1). The adjustment slide plate (91) is L-shaped and is connected to the door hinge seat (1) by an adjustment screw (92). An adjustment nut (93) is provided on the adjustment screw (92).

4. The concealed hinge on the door as described in claim 3, characterized in that: The adjusting screw (92) is installed from one side of the door panel load-bearing plate (4).

5. The concealed hinge on the door as described in claim 3 or 4, characterized in that: The adjusting slide plate (91) is locked to the door hinge box (3) by a fastener. The door hinge box (3) is provided with a first waist-shaped hole (31), and the fastener is installed in the first waist-shaped hole (31).

6. The concealed hinge on the door as described in claim 5, characterized in that: The fastener is a fixing screw.

7. The concealed hinge on the door as described in claim 1, 2, 3, 4, or 6, characterized in that: One end of the door panel load-bearing plate (4) is connected to the door panel hinge box (3) via a first rotating shaft (41). The door panel load-bearing plate (4) rotates back and forth in the door panel hinge box (3) with the first rotating shaft (41) as the fulcrum. The other end of the door panel load-bearing plate (4) is movably connected to the door frame load-bearing plate (6) via a first movable shaft (42). The door frame load-bearing plate (6) is movably connected to the door frame hinge box (5) via a first rotating shaft (43).

8. The concealed hinge on the door as described in claim 7, characterized in that: The gantry guide plate (7) is movably connected to the gantry hinge box (5) via a second rotating shaft (71), the gantry guide plate (7) is movably connected to the door panel guide plate (8) via a second movable shaft (72), and the door panel guide plate (8) is connected to the door panel hinge box (3) via a second rotating shaft (73).

9. The concealed hinge on a door as described in claim 1, 2, 3, 4, or 6, characterized in that: The gantry hinge seat (2) and the gantry hinge box (5) are connected by a locking member.

10. The concealed hinge on the door as described in claim 9, characterized in that: The gantry hinge box (5) is provided with a second oblong hole (51), and the locking component is generally a locking screw.

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