Negative angle buffering hinge

Abstract

The utility model discloses a negative-angle buffering hinge which comprises a hinge body installed on a side plate of a cabinet body and a hinge cup installed on a cabinet door. The hinge main body comprises a base mounted on a side plate of the cabinet body and a hinge arm arranged on the base; the front end of the hinge arm is bent inwards to be provided with a connecting part, an upper connecting arm is hinged to the upper end of the connecting part, a lower connecting arm is hinged to the lower end of the connecting part, and the front end of the upper connecting arm and the front end of the lower connecting arm are both hinged to the hinge cup. When the cabinet door is closed, the upper connecting arm and the lower connecting arm are contained in the hinge cup, and at the moment, the included angle between the hinge cup and the connecting part is smaller than 90 degrees. The negative angle hinge is suitable for a corner cabinet with the included angle between a cabinet door and a cabinet body side plate smaller than 90 degrees. The hinge cup drives the upper connecting arm and the lower connecting arm, and the buffer arm can slowly prevent the lower connecting arm from rotating under the prevention of the buffer, so that the closing speed of the cabinet door is slowed down; the cabinet body is effectively prevented from being impacted when the cabinet door is closed.

Description

Technical Field

[0001] The utility model relates to the field of hinges, and more specifically, to a negative angle buffer hinge. 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; in order to let people enjoy better, a hydraulic hinge (also known as a damping hinge) has emerged, which is characterized by bringing a buffering function when the cabinet door is closed, minimizing the noise generated by the collision between the cabinet door and the cabinet body when the cabinet door is closed.

[0003] The hinge includes a hinge cup installed on the cabinet door and a hinge seat installed on the side plate of the cabinet body, and the hinge arm on the hinge seat extends outward and is hinged to the hinge cup; when the conventional hinge opens the cabinet door by 90 degrees, the hinge cup and the hinge seat are in a straight line. When closing the cabinet door, the hinge arm at the end of the hinge seat is received in the hinge cup, and the hinge seat and the hinge cup are in a vertical state, that is, the conventional hinge is suitable for the installation of conventional cabinet doors, and the conventional cabinet door and the side plate of the cabinet body are in a vertical state;

[0004] However, in daily decoration, corner cabinets are often used, and the included angle between the cabinet door and the side plate of the cabinet body is often less than 90 degrees; if a conventional hinge is used for installation, the cabinet door cannot be closed tightly. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a negative angle buffer hinge.

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

[0007] A negative angle buffer hinge includes a hinge main body installed on the side plate of the cabinet body and a hinge cup installed on the cabinet door; the hinge main body includes a base installed on the side plate of the cabinet body and a hinge arm arranged on the base; the front end of the hinge arm is bent inward to be provided with a connecting portion, the upper end of the connecting portion is hinged with an upper connecting arm, the lower end of the connecting portion is hinged with a lower connecting arm, and the front ends of the upper connecting arm and the lower connecting arm are both hinged with the hinge cup;

[0008] The rear end of the lower connecting arm is hinged with a buffer arm, a buffer is arranged on the buffer arm, the front end of the buffer is connected to the buffer arm, and the rear end is connected to the hinge arm.

[0009] The utility model is further provided that: the buffer includes a damping shell and a piston rod with a piston, the damping shell is connected to the hinge arm, one end of the piston rod is placed in the damping shell, and the other end is connected to the rear connecting arm.

[0010] The present utility model is further provided that: the hinge body further includes a fixing plate for installing and fixing the base and a support seat disposed between the base and the hinge arm;

[0011] The base is provided with left and right waist-shaped adjusting holes, and left and right eccentric adjusting members adapted thereto are installed in the left and right waist-shaped adjusting holes, wherein the left and right eccentric adjusting members pass through the left and right waist-shaped adjusting holes and are connected to the fixing plate;

[0012] The hinge arm is threadedly connected with a height adjusting screw, and the lower end of the height adjusting screw is rotatably disposed on the support seat;

[0013] The rear end of the support seat is provided with a hanging portion, one end of the hanging portion is suspended towards the direction of the height adjusting screw, and the other end is connected to the support seat. The hanging portion is provided with a waist-shaped hole arranged left and right;

[0014] The hinge arm is rotatably provided with a front and rear eccentric adjusting member, and the eccentric shaft at the lower end of the front and rear eccentric adjusting member is placed in the waist-shaped hole.

[0015] The present utility model is further provided that: an avoidance notch is formed on the rear side wall of the hinge cup.

[0016] The beneficial effect of the present utility model is that: the connecting portion at the front end of the hinge arm of the present utility model is bent inwardly, so that the connecting portion forms a certain angle with the hinge arm; the hinge cup is hinged to the connecting portion at the front end of the hinge arm through an upper connecting arm and a lower connecting arm; when closing the cabinet door, the upper connecting arm and the lower connecting arm are received in the hinge cup, and at this time, the angle between the hinge cup and the connecting portion is less than 90 degrees; this negative angle hinge is applicable to a corner cabinet where the angle between the cabinet door and the side plate of the cabinet body is less than 90 degrees;

[0017] The rear end of the lower connecting arm of the hinge is hinged with a buffer arm, and a buffer is arranged on the buffer arm. The front end of the buffer is connected to the buffer arm, and the rear end is connected to the hinge arm; when closing the cabinet door, the hinge cup drives the upper connecting arm and the lower connecting arm, and the buffer arm is blocked by the buffer, and the buffer arm will slowly block the rotation of the lower connecting arm, so as to slow down the closing speed of the cabinet door; effectively avoiding hitting the cabinet body when closing the cabinet door. Description of the Drawings

[0018] Figure 1 is a schematic structural view of a negative angle buffer hinge of the present utility model Figure 1 ;

[0019] Figure 2 is a schematic structural view of a negative angle buffer hinge of the present utility model Figure 2 ;

[0020] Figure 3 is a schematic structural view of the negative angle buffer hinge of the present utility model without the base;

[0021] Figure 4 Schematic diagram of the internal connection structure of a negative angle buffer hinge of the present utility model;

[0022] Figure 5 Cooperating drawing of the base and the fixing plate of a negative angle buffer hinge of the present utility model;

[0023] Figure 6 Cooperating drawing of the hinge arm and the support seat of a negative angle buffer hinge of the present utility model;

[0024] Figure 7 Schematic diagram of the structure of the hinge cup of a negative angle buffer hinge of the present utility model;

[0025] Explanation of reference numerals: 1. Hinge main body; 11. Base; 111. Left and right waist-shaped adjustment holes; 112. Left and right eccentric adjustment parts; 12. Hinge arm; 121. Connection part; 122. Height adjustment screw; 123. Front and rear eccentric adjustment parts; 1231. Eccentric shaft; 13. Upper connecting arm; 14. Lower connecting arm; 15. Buffer arm; 16. Buffer; 161. Damping shell; 162. Piston rod; 17. Fixing plate; 18. Support seat; 181. Hanging part; 1811. Waist-shaped hole; 2. Hinge cup; 21. Avoidance notch. Detailed implementation manners

[0026] Referring to the attached Figures 1 to 7 A further detailed description is given to a negative angle buffer hinge of the present utility model.

[0027] A negative angle buffer hinge includes a hinge main body 1 installed on the side plate of a cabinet body and a hinge cup 2 installed on a cabinet door; the hinge main body 1 includes a base 11 installed on the side plate of the cabinet body and a hinge arm 12 arranged on the base 11; a connection part 121 is bent inward at the front end of the hinge arm 12, an upper connecting arm 13 is hinged to the upper end of the connection part 121, a lower connecting arm 14 is hinged to the lower end of the connection part 121, and the front ends of the upper connecting arm 13 and the lower connecting arm 14 are both hinged to the hinge cup 2;

[0028] The connection part 121 at the front end of the hinge arm 12 is bent inward, so that the connection part 121 and the hinge arm 12 form a certain angle; the hinge cup 2 is hinged to the connection part 121 at the front end of the hinge arm 12 through the upper connecting arm 13 and the lower connecting arm 14; when closing the cabinet door, the upper connecting arm 13 and the lower connecting arm 14 are received in the hinge cup 2, and at this time the angle between the hinge cup 2 and the connection part 121 is less than 90 degrees; this negative angle hinge is applicable to a corner cabinet where the angle between the cabinet door and the side plate of the cabinet body is less than 90 degrees, solving the problem that the existing hinge cannot be used for a corner cabinet.

[0029] A buffer arm 15 is hinged to the rear end of the lower connecting arm 14 of the hinge. A buffer is provided on the buffer arm 15. The front end of the buffer is connected to the buffer arm 15, and the rear end thereof is connected to the hinge arm 12. When closing the cabinet door, the hinge cup 2 drives the upper connecting arm 13 and the lower connecting arm 14. The buffer arm 15 will slowly prevent the lower connecting arm 14 from rotating under the block of the buffer, so as to slow down the closing speed of the cabinet door and play a buffering role, effectively avoiding hitting the cabinet body when closing the cabinet door.

[0030] The buffer includes a damping shell 161 and a piston rod 162 with a piston. The damping shell 161 is filled with damping oil. The damping shell 161 is connected to the hinge arm 12. One end of the piston rod 162 is placed in the damping shell 161, and the other end is connected to the rear connecting arm. When closing the cabinet door, the cabinet door panel drives the upper connecting arm 13 and the lower connecting arm 14 to rotate through the hinge cup 2. The buffer arm 15 at the rear end of the lower connecting arm 14 will compress the piston rod 162 inward. The piston rod 162 is slowly compressed downward under the resistance of the damping oil. The piston rod 162 will react on the lower connecting arm 14 through the buffer arm 15 and prevent the cabinet door from rotating through the hinge cup 2 to slow down the closing speed of the cabinet door and play a buffering role.

[0031] The hinge body 1 further includes a fixing plate 17 for installing and fixing the base 11 and a support seat 18 provided between the base 11 and the hinge arm 12. The fixing plate 17 is fixed to the side plate of the cabinet body.

[0032] The base 11 is provided with left and right waist-shaped adjustment holes 111. Left and right eccentric adjustment members 112 adapted thereto are installed in the left and right waist-shaped adjustment holes 111. The left and right eccentric adjustment members 112 pass through the left and right waist-shaped adjustment holes 111 and are connected to the fixing plate 17. By rotating the left and right eccentric adjustment members 112, the base 11 can be pushed to move in the left and right directions, so as to achieve the purpose of adjusting the installation position of the hinge arm 12 in the left and right directions.

[0033] The hinge arm 12 is threadedly connected with a height adjustment screw 122. The lower end of the height adjustment screw 122 is rotatably arranged on the support seat 18. By rotating the height adjustment screw 122, the hinge arm 12 can be lifted or lowered, so as to realize the adjustment of the hinge arm 12 in the longitudinal direction.

[0034] A suspension part 181 is provided at the rear end of the support base 18. One end of the suspension part 181 is suspended towards the height adjustment screw 122, and the other end is connected to the support base 18. An oblong hole 1811 is formed in the suspension part 181 and arranged horizontally; a front and rear eccentric adjustment part 123 is rotatably arranged on the hinge arm 12, and the eccentric shaft 1231 at the lower end of the front and rear eccentric adjustment part 123 is placed in the oblong hole 1811; by rotating the front and rear eccentric adjustment part 123, its eccentric shaft 1231 drives the suspension part 181 to move back and forth, thereby driving the adjustment of the position of the hinge arm 12 in the front and rear directions;

[0035] Through the above, three-dimensional adjustment of the hinge in the left-right, front-rear, and height directions can be achieved, so that after installation errors occur, post-adjustment can be realized through the three-dimensional adjustment structure without reinstalling the hinge.

[0036] An avoidance notch 21 is formed in the rear side wall of the hinge cup 2 to prevent interference between the hinge cup 2 and the front end of the upper connecting arm 13 when the cabinet door is opened.

[0037] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A negative angle buffer hinge, comprising a hinge body mounted on a cabinet side panel and a hinge cup mounted on a cabinet door; the hinge body comprises a base mounted on the cabinet side panel and a hinge arm arranged on the base; the characteristics are: The front end of the hinge arm is bent inward to form a connecting portion, the upper end of the connecting portion is hinged to an upper connecting arm, the lower end of the connecting portion is hinged to a lower connecting arm, and the front ends of the upper connecting arm and the lower connecting arm are both hinged to the hinge cup; The rear end of the lower connecting arm is hinged with a buffer arm, and the buffer arm is provided with a buffer, the front end of the buffer is connected to the buffer arm, and the rear end of the buffer is connected to the hinge arm.

2. The negative angle buffer hinge according to claim 1, characterized in that: The buffer comprises a damping shell and a piston rod with a piston, wherein the damping shell is connected to the hinge arm, one end of the piston rod is placed in the damping shell, and the other end is connected to the rear connecting arm.

3. The negative angle buffer hinge according to claim 2, characterized in that: The hinge body also includes a fixing plate for mounting the fixing base and a supporting base arranged between the base and the hinge arm; The base is provided with left and right waist-shaped adjustment holes, and the left and right waist-shaped adjustment holes are equipped with matching left and right eccentric adjustment pieces, wherein the left and right eccentric adjustment pieces pass through the left and right waist-shaped adjustment holes and are connected to the fixing plate; The hinge arm is threadedly connected with a height adjustment screw, and the lower end of the height adjustment screw is rotatably arranged on the support seat; A hanging part is provided at the rear end of the support seat, one end of the hanging part is suspended in the direction of the height adjustment screw, and the other end is connected to the support seat, and waist-shaped holes are provided on the hanging part; The hinge arm is rotatably provided with a front and rear eccentric adjusting piece, and the eccentric shaft at the lower end of the front and rear eccentric adjusting piece is placed in the waist-shaped hole.

4. A negative angle buffer hinge according to claim 1, 2 or 3, characterized in that: The rear side wall of the hinge cup is provided with an avoidance gap.

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