Overturn-preventing valve and use method thereof

Abstract

An overturn-preventing valve comprises a valve body housing, a switch bracket, a pedestal, a straight handle, a return spring and a hex head plug screw, wherein an upper spigot is arranged in the valve body housing; the switch bracket, steel balls and the pedestal are arranged below the upper spigot in sequence; the pedestal comprises a table board and a table body; the table board is arranged at the junction part between the upper cavity and the lower cavity of the valve body; a groove, an oil through hole, an inclined plane and a flow guide groove are formed in the table board; the table board is connected with the straight handle through the table body; the other end of the straight handle is connected with the hex head plug screw after passing through a lower end cap; the return spring is sleeved with the exteriors of the pedestal and the straight handle in parts between the table board and the lower end cap; when a vehicle overturns, an oil inlet pipe and an oil outlet pipe are switched off synchronously through the overturn-preventing valve and a one-way valve; the vehicle returns manually through the pedestal, the straight handle and the return spring. According to the invention, the oil inlet pipeline and the oil outlet pipeline of a fuel oil system can be switched off synchronously to ensure manual return of an overturn oil shut off device, the mounting is convenient, and the safety is higher.

Description

technical field [0001] The invention relates to an overturning oil cut-off device for automobiles, in particular to an anti-overturning valve and a method for using the same, which is particularly suitable for enhancing the safety of use and the convenience of installation on the basis of ensuring the overturning oil cut-off of the vehicle. Background technique [0002] At present, commercial vehicles sold in the automobile market, especially passenger cars, do not have a vehicle overturning oil cut-off device for the vehicle fuel system. Once a vehicle overturns, it is likely to cause fuel leakage, and it is difficult to effectively protect the safety of drivers and passengers. In order to improve the safety performance requirements of the automobile itself, there is an urgent need to develop a vehicle overturning oil cut-off device for the automobile fuel system. It also needs to meet the requirements of convenient installation, safety and reliability, and no potential saf...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects and problems existing in the prior art that the overturned fuel cut-off device automatically returns, only cuts off the oil inlet pipeline of the fuel system when overturned, and has low safety, and provides a manual return position of the overturned fuel cut-off device , When overturning, the oil inlet and oil return pipelines of the fuel system can be cut off at the same time, the anti-overturn valve with high safety and its use method

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