Filling gun with three in-built hollow valve rods

Abstract

The invention relates to a filling gun with three in-built hollow valve rods, which is applied on the assembling line of various kinds of vehicles and can be automatically clamped with the tank mouth of an opening-type liquid storage tank of a cooling system, a braking system and a boosting steering system of a vehicle. The filling gun solves the problems of large volume of the filling gun, heavy weight and difficulty for operation as the filling gun needs to be provided with a valve in the inner part to control the opening and closing of vacuum and fluid pipelines and simultaneously needs to be provided with a clamping device for being quickly and reliably connected with the tank mouth of the liquid storage tank. The filling gun comprises a clamping piston, hollow valve rods, a base seat, a base and the like and adopts a mode of three hollow valve rods, the inner part of the hollow structure is provided with filling pipelines. The clamping piston and a clamping jaw are the same one part, the clamping jaw pulls the end of the filling gun into the inner part of the storage tank mouth and clamps the filling gun following with the movement of the clamping piston, and good tightness can be obtained.

Description

Technical field: [0001] The invention is a filling gun with three hollow valve rods built-in, which is applied on various automobile assembly lines and can be automatically clamped to the mouth of an open liquid storage tank of automobile cooling, braking and power steering systems. Background technique: [0002] After the car is assembled on the final assembly line, the antifreeze, brake fluid, and power steering fluid must be filled into the corresponding systems of the car before it can go off the assembly line. Due to the rapid production speed of automobiles at present, and the automobile cooling, braking, and power steering systems are all closed structures, and the interior is filled with air, if the air is not discharged, various liquids cannot be injected into the corresponding parts within the specified process time system. To this end, the air in the system must be drawn out with a vacuum pump to make it in a vacuum state, and then the liquid is injected to short...

AI Technical Summary

Problems solved by technology

[0003] For all kinds of automobile assembly lines, filling guns for filling various liquids to the liquid storage tanks of automobile cooling, braking, and power steering systems must have valves inside to control the opening and closing of vacuum and fluid lines, and at the same time It is necessary to set up an automatic clamping device for fast and reliable connection between the filling gun and the mouth of the liquid storage tank, so the filling gun will be large in size and heavy in weight, and the speed of the car going on and off the assembly line is very fast, which brings great inconvenience to the operation. To solve a very difficult problem, the present invention provides a filling gun that can automatically clamp the mouth of the open liquid storage tank of the automobile cooling, braking, and power steering systems. The main content of the invention is that there are As a part of the pipeline, there are three built-in hollow valve stems and a hollow pneumatic piston clamping device, so the filling gun can be made small in size and light in weight, greatly reducing the labor intensity of the operator

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