Refrigerating and freezing device and drawer assembly thereof

Abstract

The invention relates to a refrigerating and freezing device and a drawer assembly thereof. The drawer assembly comprises a barrel with an open front side, a drawer and two sliding rail assemblies. The drawer can be inserted into the barrel in a front-back push-pull manner, and the sliding rail assemblies are arranged at the two transverse ends in the barrel. Each sliding rail assembly comprises an outer rail, and the outer rail is fixed into the barrel in the manner of extending in the front-back direction. An inner rail is arranged on the outer rail in the manner of sliding in the front-back direction and is supported by the outer rail and fixed to the drawer. A lock disc is hinged to the rear end of the outer rail in the manner of rotating around a transverse axis, and a front clamping column and a rear clamping column protruding in the transverse direction are arranged on the lock disc. A clamping head is arranged at the rear end of the inner rail and provided with a protruding part protruding upwards or downwards. In the process of pushing the drawer into the barrel, the rear end of the protruding part abuts against the rear clamping column to push the lock disc to rotate to enable the front clamping column to be attached to the front side of the protruding part, so that the inner rail and the drawer are locked. An elastic element is configured to apply resisting torque to the lock disc when the protruding part pushes the lock disc to rotate, and when the front clamping column is attached to the front side of the protruding part, torque in the direction opposite to the direction of the resisting torque is applied to the lock disc.

Description

technical field [0001] The invention relates to a refrigerating device, in particular to a refrigerating and freezing device and a drawer assembly thereof. Background technique [0002] The drawer of the refrigerating and freezing device is generally arranged in a cylindrical body in a push-and-pull manner. With the improvement of food preservation requirements, it is necessary to form a good seal between the front panel of the drawer and the opening of the cylinder after the drawer is fully pushed into the cylinder, that is, it is necessary to make the front panel close to the opening of the cylinder. [0003] For this reason, the existing refrigerating and freezing devices are equipped with complex mechanical or electromagnetic locking mechanisms to lock the drawer and the cylinder body, but the existing locking mechanisms are complex in structure and difficult to manufacture, cumbersome in operation and difficult to control, or high in cost . Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0003] For this reason, the existing refrigerating and freezing devices are equipped with complex mechanical or electromagnetic locking mechanisms to lock the drawer and the cylinder body, but the existing locking mechanisms have complex structures and are difficult to manufacture, or the operation is cumbersome and difficult to control, or the cost is relatively high

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