A door hinge mechanism and a refrigerator with the door hinge mechanism

Abstract

The invention provides a door body hinge mechanism and a refrigerator. The door body hinge mechanism comprises a hinge base, a hinge shaft arranged on the hinge base, and a door closing assisting device. The door closing assisting device comprises a flange part, a sliding piece, an elastic assembly, a damper and a drive piece, wherein the flange part is arranged on the hinge base, and the flange part comprises a rear end, a front end, a first guide slope and a second guide slope; the elastic assembly is connected with the sliding piece and a door body, and in the process of opening or closingthe door body, the elastic assembly is in a compressed state, and the door body is driven to rotate to be automatically closed when the elastic assembly drives the sliding piece to move towards the rear end along the first guide slope; the damper comprises a damping wheel, a connection rod and a first roller, and the damping wheel is used for providing damping force when the connection rod rotatestowards the sliding piece; the drive piece is used for enabling the first roller to move along the second guide slope and driving the connection rod to rotate towards the sliding piece when the sliding piece moves towards the rear end along the first guide slope, and accordingly the door body is automatically and slowly closed and prevented from being closed fast to collide with a refrigerator body, and noise in door closing is lowered. The structure is simple, and operation is convenient.

Description

technical field [0001] The invention relates to the field of refrigeration devices, in particular to a door hinge mechanism with a simple structure and capable of automatically closing the door slowly, and a refrigerator with the door hinge mechanism. Background technique [0002] At present, the power-assisted door closing mechanisms on refrigerators generally include the following types: 1. Magnetic strip type, a magnetic strip is installed in the door seal on the door body, so that when the user closes the door body to a certain angle, it can be realized by the suction force of the magnetic strip. Automatically close the door, but the magnetic strip will reduce the heat preservation performance of the door seal; 2. Plastic hook hinge device, when the refrigerator door is manually closed from the maximum opening angle to a certain angle, the hook on the plastic part and the protrusion on the edge of the hinge seat When the contact is made and the door continues to be close...

AI Technical Summary

Problems solved by technology

[0002] At present, the power-assisted door closing mechanisms on refrigerators generally include the following types: 1. Magnetic strip type, a magnetic strip is installed in the door seal on the door body, so that when the user closes the door body to a certain angle, it can be realized by the suction force of the magnetic strip. Automatically close the door, but the magnetic strip will reduce the heat preservation performance of the door seal; 2. Plastic hook hinge device, when the refrigerator door is manually closed from the maximum opening angle to a certain angle, the hook on the plastic part and the protrusion on the edge of the hinge seat When the contact is made and the door continues to be closed with force, the plastic hook will undergo elastic deformation until the critical point of the protrusion is crossed, and the elastic recovery force of the plastic hook will drive the door body to automatically close. However, the plastic hook is less elastic. It is necessary to manually close the door handle to a small angle to realize automatic door closing, and the plastic hook is easy to wear and damage due to impact; 3. The vertical spring-driven hinge device, when the refrigerator door is manually closed from the maximum door opening angle to At a certain angle, the thimble crosses the critical point of the cam, and under the action of the elastic restoring force of the vertical spring, it drives the thimble to react against the cam, making the cam rotate and drive the door to automatically close. However, the structure is complicated and the cost is high, and it is only suitable for It is used in high-end refrigerators, and the vertical force provided by the vertical spring is in the process of rotating the cam, and the vertical component force is offset, resulting in energy loss and low efficiency

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