Oiling one-way valve

Abstract

The invention provides an oiling one-way valve. The oiling one-way valve comprises a baffle and a valve body. The valve body comprises a valve main body and a shaft hole column, a column body on one side of the shaft hole column is connected with the valve main body, and the two end faces of the shaft hole column are each provided with a shaft hole. The baffle comprises a baffle body, two connecting pieces and two pivots, the two connecting pieces are connected with the baffle body, the two pivots are connected with the two connecting pieces correspondingly, the positions of the pivots correspond to the positions of the shaft holes, and the pivots are connected with the shaft holes in an inserted manner. According to the oiling one-way valve, the part structure is simple, the number of needed parts is reduced, and the cost is low.

Description

technical field [0001] The invention relates to an automobile component, in particular to a high-efficiency refueling check valve connected with a fuel tank assembly and a fuel injection system assembly. Background technique [0002] The refueling check valve is assembled on the car. Its working principle is: connect the fuel tank assembly and the fuel injection system assembly. When the fuel is full, the gun jumps, the system stops fuel supply, and the refueling check valve closes adaptively to prevent gasoline from overflowing in reverse. [0003] Patent Nos. 2015800443695, 2017210476390, and 2018106892975 all disclose the relationship technology of the refueling check valve, but these prior art refueling check valves have the following defects in actual use: [0004] 1. The joint is not connected to the valve body, but the two are sealed and connected through the connecting pipe and O-ring; [0005] 2. Rubber and valve body are used for injection molding, which has good...

AI Technical Summary

Problems solved by technology

[0005] 2. Rubber and valve body are used for injection molding, which has good sealing performance, but the process is cumbersome and difficult, and the output is limited;

[0006] 3. The rotating shaft of the baffle is connected by a metal shaft as a pivot. There is a hole for rotation on the side of the valve body, a hole for rotation on the side of the baffle, and a torsion spring. The above three parts penetrate through the metal shaft. The force of the spring needs to be fixed, and the metal shaft needs to be riveted and locked at both ends of the metal shaft after being penetrated. This process requires tooling and fixtures, and the process is cumbersome, with many parts and high cost.

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