Oil supply nozzle and method for manufacturing the same

Abstract

The invention provides an oil supply nipple and a manufacturing method of the discharge pipe which can reliably prevent the anchor spring installed on the discharge pipe from falling off. The fuel supply nozzle has a nozzle main body (11), a cylindrical discharge pipe (12) and an anchor spring (13); the nozzle main body forms an inflow port (14) connected to the end of the fuel supply pipe (19) for supplying fuel on one end side. ), an outflow port (15) is formed on the other end side, and a valve mechanism for fuel oil circulation is provided in the flow channel formed between the inflow port and the outflow port; one end side of the cylindrical discharge pipe is connected to the nozzle body On the outlet of the discharge pipe; the anchor spring is installed on the outer circumferential surface of the discharge pipe, and it is characterized in that the anchor spring utilizes a spring wire (20) with a contact portion (22) having a width formed on one side along the axis, And it is wound into a helical shape with the side of the contact part as the inner side, and the contact part is installed so that the contact part is closely attached to the outer peripheral surface of the discharge pipe by using the contraction force that reduces the inner diameter of the spring.

Description

technical field [0001] The present invention relates to a fuel supply nipple mounted on the end of a fuel supply pipe of a fuel metering machine and a method for manufacturing the fuel nipple discharge pipe. Background technique [0002] Now, in order to supply fuel to the vehicle with the fuel supply nozzle, the discharge pipe installed on the front end side of the nozzle main body is inserted into the fuel supply port of the vehicle to carry out the fuel supply operation. The oil supply nozzle is equipped with an anchor spring on the discharge pipe so that it does not fall out of the oil supply port of the car when supplying oil. The discharge pipe is made into a slightly curved shape on the side close to the nozzle main body for easy insertion into the oil supply port of the car, and a spring material is installed on the side near the nozzle main body of the discharge pipe to the center slightly to the front end side. The wire is wound into a helical anchor spring. [0...

AI Technical Summary

Problems solved by technology

However, such protrusions 3 may be worn or damaged due to contact with the oil supply port of the automobile during the oil supply operation, so the anchor spring 2 may fall off.

In addition, welding the protrusion 3 on the outer peripheral surface of the discharge pipe 1 may increase the cost, and at the same time damage the value of the product from the outer pipe.

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