Oil level gauge and forming method thereof

Abstract

The invention discloses an oil level gauge which comprises a handle and an oil level ruler. The handle sequentially comprises a holding part and a connecting and sealing part from top to bottom. Two opposite resin scissoring grooves are formed in the two side faces of the holding part. A flange extending outwards is arranged at the upper portion of the connecting and sealing part. The portion, atthe lower portion of the flange, of the connecting and sealing part is sleeved with a seal ring. The upper end of the oil level ruler is embedded in the connecting and sealing part. A parting line located on the holding part is located on the edge of one side face of the holding part. A parting line located on the connecting and sealing part is located in the middle of one side face of the connecting and sealing part. The invention further discloses an oil level gauge forming method. The resin flowing direction and the parting face are redesigned. The oil level rule is located in the middle ofa mold all the time in the handle injection molding process, the oil leakage problem caused by adding an auxiliary hole is avoided, and material consumption is reduced; meanwhile, by redesigning theparting lines, most of the handle is located in a cavity of a lower mold, and it is avoided that the handle is attached to an upper mold during demolding.

Description

technical field [0001] The invention belongs to the technical field of engine components, and in particular relates to an oil level gauge and a forming method thereof. Background technique [0002] The oil level gauge is a component used to measure the oil level in the engine, and people can judge whether the quality of the oil is degraded according to the color of the oil attached to the oil level gauge, so as to replace the oil at an appropriate time to ensure that the engine normal operation. [0003] Such as image 3 and Figure 4 As shown, in order to save material and reduce weight, the traditional oil level gauge handle is usually designed with a plastic reducing groove 111' on one side of the handle 1'. When the handle is injection molded, this plastic reducing groove 111' blocks the flow of materials Therefore, the material can only flow from the right side of the glue reducing groove 111'. When the resin fluid is injected, the end of the oil level gauge 2' is bi...

AI Technical Summary

Problems solved by technology

After the oil level gauge is installed in the oil level gauge conduit, when the temperature of the engine oil in the engine rises to a certain value, the engine oil will vaporize and generate oil mist. At this time, the oil mist will radiate outward through the process hole 5' of the handle. And there is a quality problem of oil leakage, that is, it is easy to cause the phenomenon of "burning engine oil"

Moreover, the entire parting line 6' of the traditional handle injection mold is at the center line of the product, and its disadvantage is that when the handle is molded after injection molding, the handle 1' adheres to the movable mold, and the lower end of the oil level gauge 2' The position is limited by the limiting part, so that the handle 1' and the oil level gauge 2' form a pulling force, which will eventually cause the relative position of the handle 1' and the oil level gauge 2' to change. At this time, the oil level gauge 2' moves down, which is very It is easy to come off the handle 1', so that the pull-out force between the handle 1' and the oil level gauge 2' is seriously small, and the quality problem of separation and falling off occurs in the later use of the product

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