Drain plug, drainage system and refrigerator

Abstract

The invention discloses a drainage plug, a drainage system and a refrigerator. An opening in one end of a plug body of the drainage plug is connected with a drainage pipeline. The other end of the plug body is closed, and the closed face declines relative to the plug body. A cutting line for separating the closed face from the plug body is arranged in the direction from the inclined bottom end of the closed face to the inclined top end of the closed face, and the closed face and the plug body are in a semi-separated state. In the non-drainage process, the closed face and the plug body are combined together under the action of convergent force of the non-cut portion so as to prevent air from entering the plug reversely; in the drainage process, as the closed face is inclined, gravity of water is focused on the cutting opening portion of the closed face and the plug body, the cutting opening is opened under the gravity action, then the water is drained, and after the water is thoroughly drained, the closed face rebounds under the action of convergent force of the non-cut portion so as to be combined with the plug body. The drainage plug can maintain the resilience force when used for a long time, and is simple in structure, easy to manufacture and low in cost.

Description

technical field [0001] The invention belongs to the technical field of refrigerators, and in particular relates to a drainage plug, a drainage system and a refrigerator. Background technique [0002] During the working process of the horizontal freezer, due to the temperature difference between the inside and outside of the glass door, when the glass door is opened to take out the refrigerated items, the external air enters the freezer, and condensation water will form on the inner wall of the freezer. [0003] At present, in the glass door condensate drainage system used in horizontal refrigerators, most of them adopt a structural scheme in which the drain pipe directly leads from the inside of the refrigerator to the outside of the refrigerator. air, causing frost to form inside the freezer. [0004] In order to prevent the external air from entering the refrigerator from the end of the drain pipe reversely, the drainage plugging method with anti-reverse ventilation funct...

AI Technical Summary

Problems solved by technology

Among them, the structure of the direct cut at the bottom of the drain plug requires manual control, which is prone to errors, and it is difficult to rebound to the original state after long-term use, resulting in air leakage; the duckbill-shaped drain plug is mostly made of silicone material due to its special structure , when the duckbill-shaped structure is made of silicone material, there is a defect of adhesion after long-term use, and the cost of molds and parts of silicone material is relatively high

Images