Double-damping hinge for flip-down door

Abstract

The utility model relates to the field of hinges, in particular to a double-damping hinge for a flip-down door, which comprises a hinge arm and a pocket, a connecting seat is fixed at the rear end of the hinge arm, an upper connecting piece is rotatably connected at the front end of the hinge arm, a hinge cup is arranged at the top of the pocket, the front end of the upper connecting piece is rotatably connected at the rear end in the hinge cup, and a first damping component is fixed in the hinge cup. The utility model has the beneficial effects that the hinges are used in pairs between the cabinet body and the cabinet door, and the single hinge has double damping and double buffering functions, so that the damping strength is improved, the service life of the hinges is prolonged, and the service life of the hinges is prolonged. And the opening speed of the cabinet door is effectively blocked, noise is reduced, the cabinet door is opened at a constant speed and a slow speed, bounce generated when the cabinet door is completely opened is reduced, abnormal sound is effectively eliminated, practicability is good, and the device is suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the field of hinges, in particular to a double-damping hinge for a downward-opening door. Background Art

[0002] After retrieval, a small-angle buffer silent hinge with the publication number of CN220747963U includes a base. A hinge is fixed to the top of the base through screws. One end of the hinge is rotatably connected to a four-hole connecting piece through a rotating pin. One end of the four-hole connecting piece away from the hinge is rotatably connected to a carrier. A groove is arranged in the middle of the carrier. A damper is fixedly installed at the bottom of the inner wall of the groove. One end of the damper is rotatably connected to a connecting piece. The end of the connecting piece away from the damper is rotatably connected to the end of the hinge. The connecting piece is located inside the four-hole connecting piece.

[0003] Although one end of the damper of the above utility model patent is installed on the connecting piece and the other end of the damper is installed in the groove of the carrier, the connection distance from the connecting piece to the carrier is short, the angle is small, and the damping and buffering performance is more excellent. Most of the closing force can be removed when closing the door. However, it is a single-damping structure, and the connection structure of the damper is relatively complex. For existing cabinets with downward-opening doors, they are generally installed suspended in the air. When opening the door, affected by the weight of the door itself, the damping force of the single-damping hinge is poor, and the door cannot be opened smoothly and slowly. The opening speed is too fast, which is likely to damage the service life of the hinge. Moreover, at the moment when the door is fully opened, affected by the weight of the door itself, a rebound force will be generated, resulting in abnormal noise. After a long time of use, the hinge installation position is likely to become loose under the action of the rebound force, bringing quality problems.

[0004] Therefore, it is very necessary to invent a double-damping hinge for a downward-opening door. Content of the Utility Model

[0005] For this reason, the utility model provides a double-damping hinge for a downward-opening door to solve the problems raised in the above background art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solution: A double-damping hinge for a downward-opening door includes a hinge arm and a carrier. A connecting seat is fixed to the rear end of the hinge arm. The front end of the hinge arm is rotatably connected to an upper connecting piece. A hinge cup is arranged at the top of the carrier. The front end of the upper connecting piece is rotatably connected to the rear end inside the hinge cup. A first damping component is fixed inside the hinge cup. A resistance adjusting component is arranged on the first damping component. A second damping component is also arranged between the hinge arm and the carrier.

[0007] Preferably, the first damping component includes a plastic block. The bottom of the plastic block is fixed to the bottom of the inner wall of the hinge cup. A first damper is fixed inside the plastic block. A first sliding member is slidably connected to the inner surface of the plastic block. The output shaft of the first damper is fixedly connected to the front end of the first sliding member. The rear end of the first sliding member abuts against the front end of the upper connecting piece.

[0008] Preferably, the resistance adjustment assembly includes a fixed block fixed on the top of the plastic block. An eccentric lock force button is rotatably connected to the top of the fixed block by a pin.

[0009] Preferably, a nylon plastic elastic glue is slidably connected to the top of the plastic block. The front end of the nylon plastic elastic glue abuts against the eccentric lock force button, and the rear end of the nylon plastic elastic glue abuts against the rear end of the first sliding member.

[0010] Preferably, the second damping assembly includes a second damper fixed inside the bottom of the hinge arm. A second sliding member is also slidably connected inside the bottom of the hinge arm. The output shaft of the second damper abuts against the inner wall of the second sliding member.

[0011] Preferably, a lower connecting member is rotatably connected to the rear end inside the hinge cup. The rear end of the lower connecting member is rotatably connected to the front end of the hinge arm. The rear end of the lower connecting member abuts against the front end of the second sliding member, and the lower connecting member is located below and inside the upper connecting member.

[0012] The beneficial effects of the present utility model are as follows: By the combined use of the hinge arm, the carrier, the connecting seat, the upper connecting member, the hinge cup, the first damping assembly, the resistance adjustment assembly and the second damping assembly, hinges are used in pairs between the cabinet body and the cabinet door, and a single hinge has double damping and double buffering functions, which improves the damping force, is beneficial to the service life of the hinge, effectively blocks the opening speed of the cabinet door, reduces noise, makes the cabinet door open uniformly and slowly during the opening process, reduces the rebounding force generated when the cabinet door is fully opened, effectively eliminates abnormal noises, has better practicability and is suitable for popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structure diagram in the front view direction provided by the present utility model;

[0014] Figure 2 is a partial structure decomposition diagram in the front view direction provided by the present utility model;

[0015] Figure 3 is a three-dimensional structure diagram in the bottom view direction provided by the present utility model;

[0016] Figure 4 is a partial structure decomposition diagram in the bottom view direction provided by the present utility model;

[0017] Figure 5 is a usage effect diagram provided by the present utility model.

[0018] In the figure: 1. hinge arm; 2. pocket; 3. connecting seat; 4. upper connecting piece; 5. hinge cup; 6. plastic block; 7. first damper; 8. first sliding piece; 9. fixing block; 10. eccentric locking button; 11. nylon plastic elastic glue; 12. second damper; 13. second sliding piece; 14. lower connecting piece; 15. cabinet body; 16. cabinet door. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0020] Please refer to the attached Figures 1-5 The double damping hinge for the downward flip door provided by the utility model comprises a hinge arm 1 and a pocket 2. A connecting seat 3 is fixed to the rear end of the hinge arm 1. An upper connecting piece 4 is rotatably connected to the front end of the hinge arm 1. A hinge cup 5 is arranged on the top of the pocket 2. It should be noted that the connecting seat 3 is fixed to the cabinet body 15 by fixing screws, and the pocket 2 is fixed to the cabinet door 16 by fixing screws, and they are used in pairs (such as Figure 5 As shown), the front end of the upper connecting member 4 is rotatably connected to the rear end of the hinge cup 5, a first damping component is fixed in the hinge cup 5, a resistance adjustment component is arranged on the first damping component, and a second damping component is also arranged between the hinge arm 1 and the pocket 2;

[0021] The first damping assembly includes a plastic block 6, the bottom of which is fixed to the bottom of the inner wall of the hinge cup 5, a first damper 7 is fixed inside the plastic block 6, a first sliding member 8 is slidably connected to the inner surface of the plastic block 6, an output shaft of the first damper 7 is fixedly connected to the front end of the first sliding member 8, and the rear end of the first sliding member 8 is in contact with the front end of the upper connecting member 4. Specifically, when the cabinet door 16 is opened, the pocket 2 rotates relative to the hinge arm 1, and after rotating to a certain angle, the upper connecting member 4 is driven to rotate, thereby sliding synchronously against the first sliding member 8. When the first sliding member 8 slides, it can be affected by the damping force of the first damper 7, thereby realizing the first damping function, and the structural connection is simple;

[0022] The resistance adjustment component includes a fixed block 9, which is fixed on the top of the plastic block 6. The top of the fixed block 9 is rotatably connected to an eccentric locking force button 10 through a pin. The top of the plastic block 6 is slidably connected to a nylon plastic elastic glue 11. The front end of the nylon plastic elastic glue 11 abuts against the eccentric locking force button 10, and the rear end of the nylon plastic elastic glue 11 abuts against the rear end of the first sliding member 8. Specifically, when the eccentric locking force button 10 is manually toggled, the nylon plastic elastic glue 11 can be driven to slide on the top of the fixed block 9, which can support the first sliding member 8, that is, shorten the movable distance of the first sliding member 8, thereby blocking the extension length of the damper 7, thereby reducing the flipping resistance of the cabinet door 16. Similarly, the reverse operation increases the flipping resistance of the cabinet door 16.

[0023] The second damping component includes a second damper 12. The second damper 12 is fixed to the inner side of the bottom of the hinge arm 1. A second sliding member 13 is also slidably connected to the inner side of the bottom of the hinge arm 1. The output shaft of the second damper 12 abuts against the inner wall of the second sliding member 13. A lower connecting member 14 is also rotatably connected to the rear end inside the hinge cup 5. The rear end of the lower connecting member 14 is rotatably connected to the front end of the hinge arm 1. The rear end of the lower connecting member 14 abuts against the front end of the second sliding member 13. The lower connecting member 14 is located below and inside the upper connecting member 4. Specifically, when the cabinet door 16 is opened, after the carrier 2 and the hinge arm 1 rotate relative to each other to a certain angle, the lower connecting member 14 is driven to rotate. When the lower connecting member 14 rotates, it can abut against the second sliding member 13 and slide, so as to be subject to the damping force of the second damper 12, realizing the second-stage damping function, that is, a single hinge has double damping and double buffering functions;

[0024] In summary, the hinge is used in pairs between the cabinet body 15 and the cabinet door 16, and a single hinge has double damping and double buffering functions, which improves the damping force, is beneficial to the service life of the hinge, effectively blocks the opening speed of the cabinet door, reduces noise, makes the cabinet door open slowly and evenly during the opening process, reduces the rebound force generated when the cabinet door is fully opened, and effectively eliminates abnormal noises.

[0025] The above are only the preferred embodiments of the present invention. Any person skilled in the art can modify the present invention by using the technical solutions described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solutions of the present invention falls within the scope of protection required by the present invention.

Claims

1. A double damping hinge for a downward-flipping door, comprising a hinge arm (1) and a pocket (2), wherein a connecting seat (3) is fixed to the rear end of the hinge arm (1), an upper connecting member (4) is rotatably connected to the front end of the hinge arm (1), a hinge cup (5) is arranged on the top of the pocket (2), and the front end of the upper connecting member (4) is rotatably connected to the rear end of the hinge cup (5), characterized in that: A first damping component is fixed inside the hinge cup (5), a resistance adjustment component is arranged on the first damping component, and a second damping component is also arranged between the hinge arm (1) and the pocket (2).

2. The double damping hinge for a downward-flipping door according to claim 1, characterized in that: The first damping assembly comprises a plastic block (6), the bottom of the plastic block (6) is fixed to the bottom of the inner wall of the hinge cup (5), a first damper (7) is fixed inside the plastic block (6), a first sliding member (8) is slidably connected to the inner surface of the plastic block (6), an output shaft of the first damper (7) is fixedly connected to the front end of the first sliding member (8), and a rear end of the first sliding member (8) is in contact with the front end of the upper connecting member (4).

3. The double damping hinge for a downward-flipping door according to claim 2, characterized in that: The resistance adjustment assembly comprises a fixed block (9), wherein the fixed block (9) is fixed on the top of the plastic block (6), and the top of the fixed block (9) is rotatably connected to an eccentric locking force button (10) via a pin.

4. The double damping hinge for a downward-flipping door according to claim 3, characterized in that: The top of the plastic block (6) is slidably connected with a nylon plastic elastic glue (11), the front end of the nylon plastic elastic glue (11) abuts against the eccentric locking button (10), and the rear end of the nylon plastic elastic glue (11) abuts against the rear end of the first sliding member (8).

5. The double damping hinge for a downward-flipping door according to claim 1, characterized in that: The second damping assembly comprises a second damper (12), the second damper (12) being fixed to the inner side of the bottom of the hinge arm (1), the inner side of the bottom of the hinge arm (1) being also slidably connected to a second sliding member (13), and the output shaft of the second damper (12) abuts against the inner wall of the second sliding member (13).

6. The double damping hinge for a downward-flipping door according to claim 5, characterized in that: The rear end of the hinge cup (5) is also rotatably connected to a lower connecting piece (14), and the rear end of the lower connecting piece (14) is rotatably connected to the hinge cup (5). The front end of the hinge arm (1) and the rear end of the lower connecting member (14) are in contact with the front end of the second sliding member (13). The lower connecting piece (14) is located below and inside the upper connecting piece (4).

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