Gravity type constant-pressure liquid supply device

Abstract

The invention provides a gravity type constant-pressure liquid supply device. A plunger-type cylinder is a hollow cylindrical barrel with a bottom, and a plunger piston is a cylinder and arranged in the plunger-type cylinder. A support frame is a rectangular three-dimensional rigid frame; and the plunger-type cylinder is horizontally arranged and fixed in the centre of the upper part of the support frame by two plunger-type piston supports. A shaft sleeve base is arranged in the centre of the left end part of the plunger piston, and a shaft sleeve is arranged in the right centre of a pressurecross rod and hinged with the shaft sleeve base through a hinge pin. The left end of a lifting rope is fixed at the front and rear ends of the pressure cross rod respectively, and the right end of the lifting rope passes over a front steering fixed pulley and a rear steering fixed pulley respectively, and the bottom centre of the cross bar is connected with a weight hanging bracket. A liquid supply valve and a liquid inlet valve are arranged at the bottom of the plunger-type cylinder, the liquid supply valve is connected with a four-way piece through a liquid supply main pipe, and the four-way piece is connected with three liquid supply branch pipes with valves. The liquid inlet valve is communicated with test liquid in a liquid container through a liquid inlet pipe. The gravity type constant-pressure liquid supply device has a simple structure, is convenient to operate, can realize high-precision constant-pressure liquid supply and can used for soil infiltration tests and soil-columnleaching tests.

Description

technical field [0001] The invention relates to the technical field of experimental measuring instruments, in particular to a gravity constant pressure liquid supply device, which provides a constant pressure supply device with stable pressure and long-term operation without power supply for scientific experiments such as soil seepage test and soil column leaching test. liquid device. Background technique [0002] Hydraulic experiment is a kind of basic physical mechanics experiment, and it is one of the main research methods of hydraulics and seepage mechanics research, and a complete set of constant pressure liquid supply device is the necessary equipment for hydraulic experiments. [0003] At present, the commonly used liquid supply devices are generally float type and self-overflow liquid supply devices, which are relatively popular liquid supply devices, and their functions are relatively single, which cannot meet the test accuracy requirements in the fields of scientif...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the problem that the traditional liquid supply device has large fluctuations in liquid supply pressure, serious waste of resources, and dependence on power supply, and provides a gravity-type constant pressure liquid supply device

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