Overhead door hinge mechanism

Abstract

The utility model discloses a flap hinge mechanism which comprises a main hinge, an auxiliary hinge and a tension spring, the main hinge and the auxiliary hinge are connected through a rotating shaft, and the tension spring pulls the main hinge and the auxiliary hinge. According to the overhead door hinge mechanism, the main hinge, the auxiliary hinge, the tension spring and the hydraulic supporting rod are matched with one another, the main hinge and the auxiliary hinge are pulled along with opening and closing of the cover door, tension is provided for the main hinge and the auxiliary hinge under the action of the tension spring, and meanwhile under the action of the hydraulic supporting rod, the main hinge and the auxiliary hinge can be opened and closed. According to the hinge, resilience force and pulling force are buffered, due to the strong damping force of the hydraulic supporting rod, the stability when the cover door is opened and closed is guaranteed, damage to the pulling force spring due to rapid opening and closing acceleration is avoided, meanwhile, a good and stable supporting mechanism can be provided for the cover door when the cover door is opened, and the service life of the hinge is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of flap hinges, and more specifically, to a flap hinge mechanism. Background Art

[0002] A hinge, also known as a hinge joint, is a mechanical device used to connect two solids and allow relative rotation between them. Flap hinges are mainly used at the joints of cabinets or cabinets with lid doors. Flap hinges can achieve the covering and opening actions of the lid door on the cabinet.

[0003] Publication (Announcement) No.: CN201144585Y. A disclosed flap hinge mechanism includes a gas spring, and also has an upper connecting seat, a lower connecting seat and a strut. The upper connecting seat and the lower connecting seat are respectively installed on the side wall of the cabinet. One end of the strut is hinged to the upper connecting seat, the other end of the strut is connected to the middle lower part, bottom or piston rod end of the cabinet door and is connected to the lower connecting seat, and the piston rod end or bottom of the gas spring is connected to the strut. The utility model has the characteristics of small occupied space when the cabinet door is opened, the cabinet door will not interfere with the open end of the cabinet body, simple and reasonable structure, and convenient use, and can be widely used on furniture, kitchen utensils or work cabinets.

[0004] However, the main component for maintaining the flipping angle in the above disclosed flap hinge mechanism is only the easily worn gas spring, so the service life is short. There is a lack of a good and stable opening support mechanism for the lid door of a large cabinet, resulting in certain difficulties in the opening and closing of the lid door and the cabinet body. Therefore, it is necessary to propose a flap hinge mechanism. Summary of the Utility Model

[0005] Aiming at the problems existing in the prior art, the utility model provides a flap hinge mechanism.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] A flap hinge mechanism, comprising: a main hinge and a sub-hinge, the main hinge and the sub-hinge are connected by a rotating shaft;

[0008] A tension spring, the tension spring pulls the main hinge and the sub-hinge;

[0009] A hydraulic support rod, the hydraulic support rod connects the main hinge and the sub-hinge.

[0010] Preferably, it further includes;

[0011] A pull ring, the pull ring is fixedly installed on the surfaces of the main hinge and the sub-hinge, and the tension spring is hung on the surface of the pull ring.

[0012] Preferably, it further includes:

[0013] Fixing plate, the fixing plate is fixedly connected to the bottom of the main hinge, and the hydraulic support rod is fixedly connected to the fixing plate;

[0014] Moving frame, the moving frame is fixedly connected to the output end of the hydraulic support rod;

[0015] Moving groove, the moving groove is opened inside the moving frame;

[0016] Mounting block, the mounting block is fixedly connected to the left side of the secondary hinge;

[0017] Connecting rod, the connecting rod can move inside the moving groove and is connected to the mounting block through a rotating shaft.

[0018] Preferably, it further includes:

[0019] Mounting hole, the mounting hole is opened on the mounting feet of the main hinge and the secondary hinge;

[0020] Moving plate frame, the moving plate frame is fixedly connected to the surfaces of the main hinge and the secondary hinge and corresponds to the mounting hole;

[0021] Limiting plate, the limiting plate can move inside the moving plate frame.

[0022] Preferably, it further includes:

[0023] Limiting hole, the limiting hole is opened on the surfaces of the main hinge and the secondary hinge;

[0024] Limiting rod, the limiting rod can move inside the limiting plate;

[0025] Return spring, the return spring connects the limiting rod and the limiting plate.

[0026] Preferably, it further includes:

[0027] Spacer block, the spacer block is fixedly connected inside the main hinge and the secondary hinge;

[0028] Suction cup, the suction cup is fixedly connected to the surface of the spacer block.

[0029] Preferably, it further includes:

[0030] Locking block, the locking block is fixedly connected to the top of the main hinge.

[0031] Preferably, it further includes:

[0032] Rubber pad, the rubber pad is fixedly connected to the right side of the main hinge.

[0033] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0034] 1. The utility model realizes a flap hinge mechanism through the mutual cooperation among the main hinge, the sub-hinge, the tension spring and the hydraulic support rod. As the cover door is opened and closed, the main hinge and the sub-hinge are pulled. Under the action of the tension spring, a pulling force is provided for the main hinge and the sub-hinge. At the same time, under the action of the hydraulic support rod, the resilience and the pulling force are buffered. Due to the strong damping force of the hydraulic support rod, the stability of the cover door during opening and closing is ensured, and the damage of the tension spring caused by rapid opening and closing is avoided. Meanwhile, when the cover door is opened, a good and stable support mechanism can be provided for the cover door, greatly prolonging the service life of the hinge.

[0035] 2. In the utility model, the provided limit plate limits the mounting screws in the mounting holes, preventing the mounting screws from loosening during long-term use and ensuring the stability of the installation.

[0036] 3. In the utility model, the provided limit rod locks the position of the limit plate, ensuring that the limit plate can stably block the surface of the mounting hole and preventing the position of the limit plate from shifting.

[0037] 4. In the utility model, the provided rubber pad reduces the rigid collision between the main hinge and the sub-hinge, prolonging the service life of the hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is the structural sectional view of the front view of the utility model;

[0039] Figure 2 is the structural sectional view of the main hinge, the cushion block and the suction cup of the utility model;

[0040] Figure 3 is the structural schematic diagram of the main hinge, the movable plate frame, the limit plate, the limit rod and the return spring of the utility model.

[0041] In the figure:

[0042] 1 main hinge, 2 sub-hinge, 3 tension spring, 4 hydraulic support rod, 5 pull ring, 6 fixed plate, 7 movable frame, 8 movable groove, 9 mounting block, 10 connecting rod, 11 mounting hole, 12 movable plate frame, 13 limit plate, 14 limit hole, 15 limit rod, 16 return spring, 17 cushion block, 18 suction cup, 19 clamping block, 20 rubber pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0044] As Figures 1-3 shown, an embodiment provided by the present utility model is a flap hinge mechanism, including: a main hinge 1 and a sub-hinge 2, and a spacer 17. The spacer 17 is fixedly connected inside the main hinge 1 and the sub-hinge 2.

[0045] A suction cup 18, and the suction cup 18 is fixedly connected to the surface of the spacer 17.

[0046] A pull ring 5, and the pull ring 5 is fixedly installed on the surfaces of the main hinge 1 and the sub-hinge 2. A tension spring 3 is hung on the surface of the pull ring 5.

[0047] The main hinge 1 and the sub-hinge 2 are connected by a rotating shaft.

[0048] Mounting holes 11, and the mounting holes 11 are opened on the mounting feet of the main hinge 1 and the sub-hinge 2.

[0049] A movable plate frame 12, and the movable plate frame 12 is fixedly connected to the surfaces of the main hinge 1 and the sub-hinge 2 and corresponds to the mounting holes 11.

[0050] A limiting plate 13, and the limiting plate 13 can move inside the movable plate frame 12 to limit the mounting screws in the mounting holes 11, avoiding the loosening of the mounting screws during long-term use and ensuring the stability of the installation.

[0051] Limiting holes 14, and the limiting holes 14 are opened on the surfaces of the main hinge 1 and the sub-hinge 2.

[0052] A limiting rod 15, and the limiting rod 15 can move inside the limiting plate 13 to lock the position of the limiting plate 13, ensuring that the limiting plate 13 can stably block the surface of the mounting hole 11 and avoiding the deviation of the position of the limiting plate 13.

[0053] A return spring 16, and the return spring 16 connects the limiting rod 15 and the limiting plate 13, ensuring the stability of the limiting rod 15 being inserted into the limiting hole 14.

[0054] A tension spring 3, and the tension spring 3 pulls the main hinge 1 and the sub-hinge 2.

[0055] The hydraulic support rod 4 connects the main hinge 1 and the sub-hinge 2. The fixed plate 6 is fixedly connected to the bottom of the main hinge 1. The hydraulic support rod 4 is fixedly connected to the fixed plate 6. As the cover door is opened and closed, the main hinge 1 and the sub-hinge 2 are pulled. Under the action of the tension spring 3, a tensile force is provided to the main hinge 1 and the sub-hinge 2. At the same time, under the action of the hydraulic support rod 4, the resilience and the tensile force are buffered. Due to the strong damping force of the hydraulic support rod 4, the stability of the cover door during opening and closing is ensured, and the damage of the tension spring 3 is not accelerated due to rapid opening and closing. At the same time, a good and stable support mechanism can be provided to the cover door when the flap door is opened, greatly extending the service life of the hinge.

[0056] The movable frame 7 is fixedly connected to the output end of the hydraulic support rod 4.

[0057] The movable groove 8 is opened inside the movable frame 7.

[0058] The mounting block 9 is fixedly connected to the left side of the sub-hinge 2.

[0059] The connecting rod 10 can move inside the movable groove 8 and is connected to the mounting block 9 through a rotating shaft, so that there is no movement obstruction during the flipping process.

[0060] The clamping block 19 is fixedly connected to the top of the main hinge 1. Press the clamping block against the cabinet side, so that the main hinge 1 can be accurately installed, avoiding the position deviation of the main hinge 1 during installation and ensuring the accuracy of installation.

[0061] The rubber pad 20 is fixedly connected to the right side of the main hinge 1, reducing the rigid collision between the main hinge 1 and the sub-hinge 2 and extending the service life of the hinge.

[0062] In order to facilitate the understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in the actual process will be described in detail below.

[0063] For a flap door hinge mechanism provided by the present invention, during use, press the clamping block against the cabinet side, install the mounting screws through the mounting holes 11 on the surfaces of the cabinet and the cover door. Then, the limiting plate 13 can be inserted into the movable plate frame 12 to close the mounting holes 11. As the cover door is opened and closed, the main hinge 1 and the sub-hinge 2 are pulled. Under the action of the tension spring 3, a tensile force is provided to the main hinge 1 and the sub-hinge 2. At the same time, under the action of the hydraulic support rod 4, the resilience and the tensile force are buffered. Due to the strong damping force of the hydraulic support rod 4, the stability of the cover door during opening and closing is ensured.

[0064] In summary, the folding door hinge mechanism solves the problems mentioned in the background technology through the mutual cooperation among the main hinge 1, the sub-hinge 2, the tension spring 3 and the hydraulic support rod 4.

[0065] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flap hinge mechanism, comprising: The main hinge (1) and the secondary hinge (2) are characterized in that: the main hinge (1) and the secondary hinge (2) are connected to each other by a rotating shaft; A tension spring (3), wherein the tension spring (3) pulls the main hinge (1) and the secondary hinge (2); A hydraulic support rod (4), wherein the hydraulic support rod (4) connects the main hinge (1) and the secondary hinge (2).

2. A flap hinge mechanism according to claim 1, characterized in that: Also includes; A pull ring (5) is fixedly mounted on the surface of the main hinge (1) and the secondary hinge (2), and the tension spring (3) is hung on the surface of the pull ring (5).

3. The hinge mechanism for a flap door according to claim 2, characterized in that: Also includes: A fixed plate (6), wherein the fixed plate (6) is fixedly connected to the bottom of the main hinge (1), and the hydraulic support rod (4) is fixedly connected to the fixed plate (6); A movable frame (7), wherein the movable frame (7) is fixedly connected to the output end of the hydraulic support rod (4); A movable groove (8), wherein the movable groove (8) is provided inside the movable frame (7); A mounting block (9), wherein the mounting block (9) is fixedly connected to the left side of the secondary hinge (2); A connecting rod (10) is movable inside the movable groove (8) and is connected to the mounting block (9) via a rotating shaft.

4. The hinge mechanism for a flap door according to claim 3, characterized in that: Also includes: A mounting hole (11), wherein the mounting hole (11) is provided on the mounting feet of the main hinge (1) and the secondary hinge (2); A movable plate frame (12), the movable plate frame (12) is fixedly connected to the surface of the main hinge (1) and the auxiliary hinge (2), and corresponds to the mounting hole (11); A limiting plate (13) is movable inside the movable plate frame (12).

5. The hinge mechanism for a flap door according to claim 4, characterized in that: Also includes: A limiting hole (14), wherein the limiting hole (14) is formed on the surface of the main hinge (1) and the secondary hinge (2); A limiting rod (15), wherein the limiting rod (15) is movable inside the limiting plate (13); A return spring (16), wherein the return spring (16) connects the limit rod (15) and the limit plate (13).

6. The hinge mechanism for a flap door according to claim 5, characterized in that: Also includes: A cushion block (17), wherein the cushion block (17) is fixedly connected inside the main hinge (1) and the secondary hinge (2); A suction cup (18), wherein the suction cup (18) is fixedly connected to the surface of the cushion block (17).

7. The hinge mechanism for a flap door according to claim 6, characterized in that: Also includes: A clamping block (19), wherein the clamping block (19) is fixedly connected to the top of the main hinge (1).

8. The hinge mechanism for a flap door according to claim 7, characterized in that: Also includes: A rubber pad (20), wherein the rubber pad (20) is fixedly connected to the right side of the main hinge (1).

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