Thick door two-section force damping buffer hinge

Abstract

The utility model discloses a thick door two-section force damping buffer hinge which comprises a hinge body installed on a side plate of a cabinet body and a hinge cup installed on the cabinet door, the hinge body comprises a hinge arm, a connecting arm, a torsion spring and a buffer damper, a piston rod of the buffer damper is connected with the hinge cup through a transmission assembly, and the hinge cup is connected with the connecting arm. The connecting arm is arranged at the front end part of the hinge arm through a connecting rotating shaft; the transmission assembly comprises a first transmission part and a second transmission part which are rotationally arranged on the hinge arm, an abutting shaft is arranged on one side of the first transmission part, and the abutting shaft is sleeved with a wear-resistant sleeve; the torsion spring is sleeved on the connecting rotating shaft, one torsion bar of the torsion spring abuts against the inner side wall of the hinge arm, and the other torsion bar of the torsion spring abuts against the abrasion-resistant sleeve, so that the function on the torsion spring is achieved, the torsion bar of the torsion spring is prevented from directly acting on or abutting against the rotating shaft, abrasion of the corresponding rotating shaft is effectively avoided, and the service life of the hinge is prolonged.

Description

Technical Field

[0001] The utility model relates to a hinge, and more specifically, to a two-stage force damping buffer hinge for thick doors. 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; hinges are mainly installed on doors and windows, while hinges are more installed on cabinets; to provide people with a better experience, a hydraulic hinge (also known as a damping hinge) has emerged, which features a buffering function when the cabinet door is closed, minimizing the noise generated when the cabinet door collides with the cabinet body.

[0003] Currently, the Chinese patent with the application number 202023144433.4 on the market discloses a small-angle buffer hinge, which includes a hinge main body installed on the inner side of the frame body and a hinge cup installed on the cabinet door; the hinge main body includes a connecting arm, an outer swing arm, and an inner swing arm; one end of the inner swing arm is connected to a buffer damper through a linkage block, and the other end is hinged to the hinge cup through the upper connecting rod of a U-shaped pin shaft; the linkage block is rotatably arranged on the connecting arm through a linkage shaft; when the cabinet door is opened at a small angle, the inner swing arm will compress a double torsion spring, and at the same time, the inner swing arm will compress the buffer rod of the buffer damper through the linkage block, realizing a slow opening.

[0004] In this hinge, the middle arched torsion rod of the double torsion spring directly abuts against the rotating shaft of the inner swing arm. During use, the middle arched torsion rod of the double torsion spring will cause wear to the rotating shaft of the inner swing arm, reducing the service life of the hinge. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide a two-stage force damping buffer hinge for thick doors.

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

[0007] A two-stage force damping buffer hinge for thick doors, comprising a hinge body installed on the side plate of a cabinet and a hinge cup installed on a cabinet door. The hinge body includes a hinge arm, a connecting arm, a torsion spring, and a buffer damper. The piston rod of the buffer damper is connected to the hinge cup through a transmission component. The connecting arm is arranged at the front end of the hinge arm through a connecting rotating shaft. The transmission component includes a first transmission member and a second transmission member rotatably arranged on the hinge arm. One end of the first transmission member is hinged to the hinge cup, and the other end is hinged to one end of a linkage member. One end of the second transmission member is connected to the buffer damper, and the other end is hinged to the other end of a middle transmission plate. A abutting shaft is arranged on one side of the first transmission member, and a wear-resistant sleeve is sleeved on the abutting shaft. The torsion spring is sleeved on the connecting rotating shaft. One torsion rod of the torsion spring abuts against the inner side wall of the hinge arm, and the other torsion rod abuts against the wear-resistant sleeve.

[0008] The present utility model is further provided that: the wear-resistant sleeve is rotatably arranged on the abutting shaft.

[0009] The present utility model is further provided that: the first transmission member is provided with a front installation groove, the second transmission member is provided with a rear installation groove, and both ends of the linkage member are respectively arranged in the front installation groove and the rear installation groove through rotating shafts.

[0010] The present utility model is further provided that: an avoidance concave groove is formed on the other side surface of the first transmission member relative to the connecting arm.

[0011] The beneficial effect of the present utility model: This hinge adopts a linkage mode of the first transmission member, the linkage member, and the second transmission member. Even when the first transmission member swings slightly, it can also push the second transmission member to swing through the linkage member and cooperate with the buffer damper to realize the buffer force transmission between the hinge cup and the buffer damper. This enables the installation position of the first transmission member to have a large design space, increasing the installation distance between the hinge body and the hinge cup, so that this hinge can be applied to relatively thick door bodies.

[0012] A abutting shaft is arranged on one side of the first transmission member, and a wear-resistant sleeve is sleeved on the abutting shaft. The other torsion rod of the torsion spring abuts against the wear-resistant sleeve, realizing the action on the torsion spring, avoiding the torsion rod of the torsion spring directly acting on or abutting against the rotating shaft, effectively avoiding the wear of the corresponding rotating shaft, and improving the service life of the hinge. Description of the Drawings

[0013] Figure 1 It is a structural schematic diagram of a two-stage force damping buffer hinge for thick doors of the present utility model;

[0014] Figure 2 It is a structural schematic diagram of a two-stage force damping buffer hinge for thick doors of the present utility model after removing the hinge arm;

[0015] Figure 3It is an assembly drawing of a transmission component and a buffer damper;

[0016] Figure 4 It is a structural schematic diagram of a first transmission part;

[0017] Figure 5 It is a structural schematic diagram of a second transmission part.

[0018] Explanation of reference numerals: 1. Hinge body; 2. Hinge cup; 3. Hinge arm; 4. Connecting arm; 5. Buffer damper; 6. Transmission component; 61. First transmission part; 611. Front mounting groove; 612. Avoidance recessed groove; 62. Second transmission part; 621. Rear mounting groove; 63. Linking part; 7. Connecting rotating shaft; 8. Resting shaft; 9. Wear-resistant sleeve; 10. Torsion spring. Detailed implementation manners

[0019] Referring to the attached Figures 1 to 5 A further detailed description is given to an embodiment of a two-stage force damping buffer hinge for a thick door of the present utility model.

[0020] From Figure 1 and Figure 2 it can be known that a two-stage force damping buffer hinge for a thick door includes a hinge body 1 installed on the side plate of a cabinet body and a hinge cup 2 installed on a cabinet door. The hinge body 1 includes a hinge arm 3, a connecting arm 4, a torsion spring 10 and a buffer damper 5. The piston rod of the buffer damper 5 is connected to the hinge cup 2 through a transmission component 6. The connecting arm 4 is arranged at the front end of the hinge arm 3 through a connecting rotating shaft 7, so that the connecting arm 4 can swing relative to the hinge arm 3; From Figure 3 it can be known that the transmission component 6 includes a first transmission part 61 and a second transmission part 62 rotatably arranged on the hinge arm 3, that is, both the first transmission part 61 and the second transmission part 62 are rotatably arranged on the hinge arm 3 through a rotating shaft. One end of the first transmission part 61 is hinged to the hinge cup 2, and the other end is hinged to one end of a linking part 63. One end of the second transmission part 62 is connected to the buffer damper 5, and the other end is hinged to the other end of a middle transmission piece.

[0021] In order to make the connection among the first transmission part 61, the linking part 63 and the second transmission part 62 more reliable, from Figure 4 and Figure 5 it can be known that the first transmission part 61 is provided with a front mounting groove 611, the second transmission part 62 is provided with a rear mounting groove 621, and both ends of the linking part 63 are respectively arranged in the front mounting groove 611 and the rear mounting groove 621 through a rotating shaft, which is convenient for the installation of the first transmission part 61, the linking part 63 and the second transmission part 62.

[0022] This hinge uses a linkage method among a first transmission member 61, a linkage member 63, and a second transmission member 62. Even when the first transmission member 61 swings slightly, it can push the second transmission member 62 to swing through the linkage member 63 and cooperate with the buffer damper 5 to achieve the transfer of the buffer force between the hinge cup 2 and the buffer damper 5. This allows for a larger design space for the installation position of the first transmission member 61, increasing the installation distance between the hinge body 1 and the hinge cup 2, so that this hinge can be applied to thicker door bodies. Wherein, an avoidance recess 612 is provided on the other side of the first transmission member 61 relative to the connecting arm 4, which also effectively avoids interference between the front transmission piece and the edge of the door body, providing a larger clearance space at the connection between the hinge body 1 and the hinge cup 2, facilitating the use of thicker door bodies.

[0023] When the hinge of the present utility model opens the door or window, when the hinge cup 2 opens outward relative to the hinge body 1, the first transmission member 61 will push the second transmission member 62 to swing backward through the linkage member 63, causing the second transmission member 62 to pull the buffer damper 5 outward. When the door or window is released, the hinge cup 2 will close inward under the action of the reset torsion spring. The first transmission member 61 will push the second transmission member 62 to swing forward through the linkage member 63, causing the second transmission member 62 to squeeze the buffer damper 5 inward to achieve a buffering effect. The buffer damper 5 of the present utility model adopts an extrusion structure, so that the hinge still has a buffering effect when opening and closing at a small angle.

[0024] From Figure 2 it can be seen that a abutment shaft 8 is provided on one side of the first transmission member 61, and a wear-resistant sleeve 9 is sleeved on the abutment shaft 8; the torsion spring 10 is sleeved on the connecting rotating shaft 7. One torsion rod of the torsion spring 10 abuts against the inner side wall of the hinge arm 3, and the other torsion rod abuts against the wear-resistant sleeve 9. The other torsion rod of the torsion spring 10 abuts against the wear-resistant sleeve 9 to achieve the effect on the torsion spring 10, avoiding the torsion rod of the torsion spring 10 directly acting on or abutting against the rotating shaft, effectively avoiding wear of the corresponding rotating shaft, and prolonging the service life of the hinge.

[0025] Wherein the wear-resistant sleeve 9 is rotatably arranged on the abutment shaft 8. When the torsion rod of the torsion spring 10 interacts with the wear-resistant sleeve 9, the wear-resistant sleeve 9 can rotate on the abutment shaft 8 to effectively avoid relative movement between the torsion rod of the torsion spring 10 and the wear-resistant sleeve 9, reducing wear between the two and improving the service life.

[0026] The above are only the preferred embodiments of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements should also be regarded as within the protection scope of the present utility model.

Claims

1. A two-stage force damping buffer hinge for thick doors, comprising a hinge body mounted on a cabinet side panel and a hinge cup mounted on a cabinet door, wherein the hinge body comprises a hinge arm, a connecting arm, a torsion spring and a buffer damper, wherein a piston rod of the buffer damper is connected to the hinge cup through a transmission assembly, and the connecting arm is arranged at the front end of the hinge arm through a connecting shaft; Its characteristics are: The transmission assembly includes a first transmission member and a second transmission member rotatably arranged on the hinge arm, one end of the first transmission member is hinged to the hinge cup, and the other end is hinged to one end of the linkage member, one end of the second transmission member is connected to the buffer damper, and the other end is hinged to the other end of the middle transmission sheet; A support shaft is arranged on one side of the first transmission member, and a wear-resistant sleeve is sleeved on the support shaft; The torsion spring is sleeved on the connecting shaft, one torsion rod of the torsion spring abuts against the inner side wall of the hinge arm, and the other torsion rod abuts against the wear-resistant sleeve.

2. The thick door two-stage force damping buffer hinge according to claim 1 is characterized in that: The wear-resistant sleeve is rotatably arranged on the abutment shaft.

3. A two-stage force damping buffer hinge for thick doors according to claim 1 or 2, characterized in that: The first transmission member is provided with a front mounting groove, the second transmission member is provided with a rear mounting groove, and the two ends of the linkage member are respectively arranged in the front mounting groove and the rear mounting groove through a rotating shaft.

4. A thick door two-stage force damping buffer hinge according to claim 1 or 2, characterized in that: The other side of the first transmission member opposite to the connecting arm is provided with an avoidance recessed groove.

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