Hidden hinge

Abstract

The utility model relates to a hidden type hinge which comprises a base, a connecting piece, a hinging piece and an installation base, the connecting piece is fixedly arranged on the base, the two ends of the hinging piece are hinged to the connecting piece and the installation base respectively, a groove is formed in the installation base, and when the installation base rotates around a hinging part and is attached to the base, the groove wraps the connecting piece and the hinging piece. According to the hidden hinge, the base and the connecting piece which are originally of an integrated structure are designed into two independent parts, the base is attached to a door frame in the installation process, the torque is small, the end of the connecting piece needs to be suspended, and the torque is large, so that the connecting piece is easier to deform and crack compared with the base, and the installation is more convenient. The two independent parts can be made of materials different in strength and rigidity performance to be used in a matched mode, the manufacturing difficulty and cost of the hinge are reduced while the overall strength of the hinge is guaranteed, the connecting pieces can be independently replaced when deforming in the long-term use process, materials are saved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of hinges, and particularly relates to a concealed hinge. Background Art

[0002] Surface-mounted hinges and concealed hinges are two common options. Since concealed hinges are simple and beautiful after installation, they are increasingly widely used in the decoration field. However, the structure of concealed hinges is relatively complex, and their load-bearing capacity is not as good as that of surface-mounted hinges. If the strength and stiffness of the materials are insufficient, it will cause the hinges to deform and crack. In order to improve their physical properties, only materials with better strength and stiffness such as zinc alloy and stainless steel can be used, which increases the processing difficulty and production cost compared with surface-mounted hinges, affecting the large-scale popularization and use of concealed hinges. Summary of the Utility Model

[0003] In view of this, the purpose of the present utility model is to provide a concealed hinge aiming at the deficiencies of the prior art, which can improve the structural strength of the hinge while reducing the manufacturing difficulty and cost of the hinge.

[0004] To achieve the above object, the present utility model adopts the following technical solutions:

[0005] A concealed hinge includes a base, a connecting member, a hinge member and a mounting seat. The connecting member is fixedly arranged on the base. Both ends of the hinge member are respectively hinged to the connecting member and the mounting seat. A groove is formed on the mounting seat. When the mounting seat rotates around the hinge part and fits onto the base, the groove wraps the connecting member and the hinge member.

[0006] To better implement the present utility model, further optimization is made in the above structure. Both the connecting member and the hinge member are made of iron or steel.

[0007] To better implement the present utility model, further optimization is made in the above structure. Both the connecting member and the hinge member adopt stamping process.

[0008] To better implement the present utility model, further optimization is made in the above structure. The connecting member is fixedly arranged on the base by screws or rivets or welding.

[0009] To better implement the present utility model, further optimization is made in the above structure. The connecting member is of U-shaped structure, and a shielding piece is clamped on the outer side of the connecting member.

[0010] To better implement the present utility model, further optimization is made in the above structure. Two hinge members are provided.

[0011] To better implement the present utility model, further optimization is made to the above structure. It further includes an adjusting seat. The mounting seat is embedded in the adjusting seat. Connecting holes are provided on both the mounting seat and the adjusting seat, and the two are fixedly connected by passing an adjusting bolt through the connecting holes.

[0012] To better implement the present utility model, further optimization is made to the above structure. A vertical adjusting mounting hole is provided on the adjusting seat.

[0013] To better implement the present utility model, further optimization is made to the above structure. A horizontal adjusting mounting hole is provided on the base.

[0014] The present utility model has the following beneficial effects compared with the prior art:

[0015] For the concealed hinge provided by the present utility model, the original integrated base and connecting member are designed as two separate components. During installation, the base fits against the door frame with a small moment, while the end of the connecting member needs to be suspended with a large moment. Therefore, the connecting member is more likely to deform and crack compared to the base. Designing them as two separate components allows the use of materials with different strength and stiffness properties in combination. While ensuring the overall strength of the hinge, it reduces the manufacturing difficulty and cost of the hinge. Moreover, during long-term use, if the connecting member deforms, it can be replaced separately, saving materials and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 is the installation schematic diagram of the concealed hinge of the present utility model;

[0018] Figure 2 is the structural schematic diagram of the concealed hinge of the present utility model;

[0019] Figure 3 is the structural schematic diagram of the concealed hinge of the present utility model after removing the shielding piece;

[0020] Figure 4 is the horizontal sectional view of the concealed hinge of the present utility model;

[0021] Figure 5 is the structural schematic diagram of the base in the concealed hinge of the present utility model;

[0022] Figure 6It is a schematic structural view of the connecting piece in the concealed hinge of the present utility model;

[0023] Figure 7 It is a schematic structural view of the hinge piece in the concealed hinge of the present utility model;

[0024] Figure 8 It is a schematic structural view of the mounting base in the concealed hinge of the present utility model;

[0025] Figure 9 It is a schematic structural view of the adjusting base in the concealed hinge of the present utility model.

[0026] In the figure:

[0027] 1 - base, 101 - horizontal adjustment mounting hole, 2 - connecting piece, 201 - shielding piece, 3 - hinge piece, 4 - mounting base, 5 - adjusting base, 501 - vertical adjustment mounting hole, 6 - connecting hole, 11 - door, 12 - doorframe. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments in the present utility model without any creative work fall within the scope protected by the present utility model.

[0029] In the description of the present utility model, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "mounting", "connecting", "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] Refer toFigures 1-9 , a concealed hinge provided by the present utility model includes a base 1, a connecting member 2, a hinge member 3 and a mounting base 4. The connecting member 2 is fixedly arranged on the base 1. Both ends of the hinge member 3 are respectively hinged to the connecting member 2 and the mounting base 4. A groove 401 is formed on the mounting base 4. When the mounting base 4 rotates around the hinge portion and fits onto the base 1, the groove 401 wraps the connecting member 2 and the hinge member 3. The base 1 and the connecting member 2, which were originally an integral structure, are designed as two separate components. During installation, the base 1 fits on the door frame 12 with a small moment, while the end of the connecting member needs to be suspended and connected to the door 11 with a large moment. Therefore, the connecting member 2 is more likely to deform and crack compared to the base 1. Designing them as two separate components allows the use of materials with different strength and stiffness properties in combination. While ensuring the overall strength of the hinge, it reduces the manufacturing difficulty and cost of the hinge. Moreover, during long-term use, if the connecting member deforms, it can be replaced separately, saving materials and reducing maintenance costs.

[0032] To improve the strength and stiffness of the main components, both the connecting member 2 and the hinge member 3 are made of iron or carbon steel or stainless steel manufactured by stamping process, so that they have higher physical properties, can withstand greater moments, and prevent deformation and cracking. Other components can be made of aluminum alloy or zinc alloy, which can greatly reduce the production cost and at the same time ensure the beauty of the hinge appearance. If all are made of stamped parts, it will not only increase the production difficulty and cost, but also the appearance of the hinge is not beautiful enough.

[0033] The connecting member 2 is fixedly arranged on the base 1 by screws or rivets or welding, with firm connection. Screws or rivets can be conveniently disassembled and replaced later. When using the welding process, the material of the base 1 needs to be replaced with the same iron or steel as the connecting member 2. The connecting member 2 is of a U-shaped structure. The bottom of the U-shaped structure is connected to the base 1, and the two sides of the U-shaped structure are used for hinging with the ends of the hinge member 3. A shielding piece 201 is clamped outside the connecting member 2. The shielding piece 201 plays a role in shielding the connecting member 2, avoiding pinching hands, and at the same time preventing the internal parts from being exposed, making it more beautiful.

[0034] Two hinge members 3 are provided. Firstly, it can improve the support performance. Secondly, the two hinge members 3 can rely on each other. As Figure 4 shown, both of the two hinge members 3 are designed as V-shaped structures. When the inner hinge member 3 abuts against the V-shaped bending part of the outer hinge member 3, the door 11 cannot continue to rotate, and it can be used to limit the opening angle of the door.

[0035] As Figure 9As shown in the figure, it further includes an adjusting seat 5. The mounting seat 4 is embedded in the adjusting seat 5. Connecting holes 6 are provided on both the mounting seat 4 and the adjusting seat 5, and the two are fixedly connected by passing an adjusting bolt (in order to facilitate observing the position of the connecting hole 6, the adjusting bolt is not shown in the figure) through the connecting hole 6. Since the door 11 may be skewed left and right and not match the door frame 12 during installation, at this time, rotate the adjusting bolt. By changing the distance between the mounting seat 4 and the adjusting seat 5, a gasket can be added between the two to improve the connection support force and make the door 11 level left and right. A vertical adjusting mounting hole 501 is provided on the adjusting seat 5 for adjusting the height of the door 11. A horizontal adjusting mounting hole 101 is provided on the base 1 for adjusting the front and back of the door 11.

[0036] When installing the hinge, as Figure 1 shown, the base 1 of the hinge is installed on the door frame 12, and the adjusting seat 5 is installed on the door 11. The door 11 is adjusted in the up and down, left and right, and front and back directions in three dimensions to make the door 11 perfectly match the door frame 12.

[0037] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A concealed hinge, characterized in that: It includes a base (1), a connecting piece (2), a hinge piece (3) and a mounting base (4). The connecting piece (2) is fixedly arranged on the base (1). Two ends of the hinge piece (3) are respectively hinged to the connecting piece (2) and the mounting base (4). A groove (401) is formed in the mounting base (4). When the mounting base (4) rotates around the hinge part and fits onto the base (1), the groove (401) wraps the connecting piece (2) and the hinge piece (3).

2. The concealed hinge according to claim 1, wherein: Both the connecting piece (2) and the hinge piece (3) are made of iron or steel materials.

3. The concealed hinge according to claim 2, wherein: Both the connecting piece (2) and the hinge piece (3) adopt stamping process.

4. The concealed hinge according to claim 3, characterized in that: The connecting piece (2) is fixedly arranged on the base (1) by screws or rivets or welding.

5. The concealed hinge according to claim 4, wherein: The connecting piece (2) is of a U-shaped structure, and a shielding piece (201) is clamped on the outer side of the connecting piece (2).

6. The concealed hinge according to claim 1, wherein: Two hinge pieces (3) are provided.

7. A concealed hinge according to any one of claims 1-6, characterized in that: It further includes an adjusting base (5). The mounting base (4) is embedded in the adjusting base (5). Connecting holes (6) are formed in both the mounting base (4) and the adjusting base (5), and the two are fixedly connected by passing an adjusting bolt through the connecting holes (6).

8. The concealed hinge according to claim 7, characterized in that: A vertical adjusting mounting hole (501) is formed in the adjusting base (5).

9. The concealed hinge according to claim 8, characterized in that: A horizontal adjusting mounting hole (101) is formed in the base (1).

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