Gas tightness detecting device of clutch master pump

Abstract

The invention relates to a gas tightness detecting device of a clutch master pump. The gas tightness detecting device comprise a base plate, wherein a one-way limit block is arranged in the center of the base plate, a support plate is arranged on each of the left side and the right side of the one-way limit block, a fixing shaft is clamped at the upper ends of the support plates and sleeved with a shaft sleeve, pump body fixing frames are uniformly arranged on the shaft sleeve, each pump body fixing frame comprises a front arm and a rear arm, a front waist-shaped hole is formed in the front arm, a rear waist-shaped hole is formed in the rear arm, a sliding column penetrates through the front waist-shaped hole and the rear waist-shaped hole, stoppers are arranged at the front end and the rear end of the sliding column, and pump body fixing columns are arranged in the middle of the inner side surface of the rear arm. According to the gas tightness detecting device, a plurality of rotatable pump body fixing frames are used for fixing the pump body, the number of clutch pumps subjected to one-time continuous detection is increased, and the working efficiency is improved; the one-way limit block provided with a convex surface and a concave surface is adopted, so that the pump body fixing frames can rotate in one direction; and the one-way limit block provided with the convex surface and the concave surface is matched with the sliding columns, so that the one-way limit rotating function of the pump body fixing frames can be flexibly and conveniently realized.

Description

technical field [0001] The invention relates to a testing device for auto parts, in particular to an air tightness testing device for a clutch master cylinder. Background technique [0002] The clutch pump is a device to realize the separation of the clutch. There is a plunger and a spring inside the clutch pump. When the driver steps on the clutch pedal, the push rod pushes the piston of the master cylinder to increase the oil pressure. Push the release fork to push the release bearing forward; when the driver releases the clutch pedal, the hydraulic pressure is released, and the release fork gradually returns to its original position under the action of the return spring, and the clutch is in the engaged state again. [0003] There is a radial oblong hole in the middle of the piston of the clutch pump. After the pressure in the pump body increases, the hydraulic oil in the pump body of the clutch pump is easy to overflow, which affects the safety of the clutch pump. When t...

AI Technical Summary

Problems solved by technology

[0003] There is a radial oblong hole in the middle of the piston of the clutch pump. After the pressure in the pump body increases, the hydraulic oil in the pump body of the clutch pump is easy to overflow, which affects the safety of the clutch pump. When testing the air tightness of the clutch pump, In the prior art, two metal pillars fixed on the metal plate are commonly used to fix the clutch pump body, and then use a detection cylinder on one side to detect the air tightness of the clutch pump, but the above detection method is relatively simple, and only one can be detected at a time. Clutch pump, low detection efficiency

Images