Exhaust throttling tooling for oil filling pipe assembly

Abstract

The invention discloses an exhaust throttling tooling for an oil filling pipe assembly, and provides the exhaust throttling tooling for the oil filling pipe assembly, which is simple in structure, facilitates the control over the inner diameter of an exhaust pipe and is enabled to reach reliable discharge standards. The exhaust throttling tooling comprises a machine body, a clamp component and a driving component; the clamp component is arranged on the machine body and comprises a vertical plate, a supporting seat, an inner circular sleeve, an outer circular sleeve and at least two thimbles; the outer circular sleeve is movably arranged in a circular groove through the driving component; the inner circular sleeve is fixedly arranged in the circular groove; penetrating holes which are in one-to-one correspondence to the thimbles are formed in the inner circular sleeve; arc slideways which are in one-to-one correspondence to the thimbles are arranged in sleeve holes of the outer circular sleeve; at least two thimbles are uniformly distributed on the inner circular sleeve; and one end of each thimble is positioned in a through hole, and the other end of each thimble is positioned in the corresponding slideway, so that when the outer circular sleeve rotates, the thimbles slide in the corresponding penetration holes. According to the exhaust throttling tooling disclosed by the invention, in the process of filling fuel oil into an oil tank, steam exhausted by an exhaust pipe of the oil filling pipe assembly is controlled, so that the pollution to the environment is reduced.

Description

technical field [0001] The invention relates to a metal filling pipe assembly, in particular to an extruding tool for an exhaust pipe in the filling pipe. Background technique [0002] As a branch of the fuel filler pipe assembly, the metal fuel filler pipe has the characteristics of low emission, light weight, good electrical conductivity and stable structure. As the emission requirements become higher and higher, the low emission characteristics of metal filler pipes are highlighted, and their use will become more and more common. The exhaust pipe is connected to the fuel pipe. During the refueling process of the non-ORVR system, the excess gas in the fuel tank passes through it to the top of the fuel pipe and is finally discharged into the atmosphere. For the emission requirements of EUROV, the discharge assigned by the fuel pipe assembly The amount is 150 mg, so it is especially important to control the emission. The exhaust pipe in the commonly used metal fuel pipe, th...

AI Technical Summary

Problems solved by technology

The original filling pipe installed a copper valve core in the exhaust pipe to achieve the purpose of controlling the inner diameter. The disadvantage of this is that the entire filling pipe is easy to block due to the relatively high viscosity of the paint during the ESD coating process. Exhaust pipe inner hole

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