Pneumatic control varying-slope type soil erosion simulation test radial-flow test slot and method

Abstract

The invention provides a pneumatic control varying-slope type soil erosion simulation test radial-flow test slot. The pneumatic control varying-slope type soil erosion simulation test radial-flow testslot comprises a base, a pneumatic lifting jack and a radial-flow slot, wherein a radial-flow slot rotary shaft bracket is arranged at the front end of the top of the base; a radial-flow slot rotaryshaft is arranged on the radial-flow slot rotary shaft bracket; rotary fixed supporting rod rotary shafts are arranged at the two sides of the rear end of the base; the rotary fixed supporting rods are rotatably connected with the base through the rotary fixed supporting rod rotary shafts; a fixed device is arranged on the radial-flow slot; the rotary fixed supporting rods are connected with the radial-flow slot through the fixed device; and the pneumatic lifting jack and a pneumatic lifting jack supporting frame are arranged at the rear end of the top of the base. The invention further provides a pneumatic control varying-slope type soil erosion simulation test radial-flow test method. The rotary fixed supporting rods are separated from the radial-flow slot, the handle is pressed down through hands, the handle drives a small piston to move downwards through a small piston pressure rod, the small piston compresses gas between the small piston and a large piston to extrude the large piston to ascend to drive the radial-flow slot to rotate by taking the radial-flow slot rotary shaft as the axis.

Description

technical field [0001] The invention belongs to the technical field of soil hydrodynamics, slope hydrology, water and soil conservation, and agricultural non-point source pollution prevention and control simulation monitoring test device technical field, and specifically relates to an air pressure control variable slope soil erosion simulation monitoring runoff test tank device and method. Background technique [0002] The innovation of the design of the indoor simulation test device and the transformation of the device according to different test purposes are the key to the expected results of the test. At present, the runoff trough used in the indoor artificial simulated rainfall monitoring experiment on the movement of soil inflow and pollutants carried is only a collection trough for soil inflow at the bottom of the end of the runoff trough, and only the total amount of soil inflow in the runoff trough can be monitored. However, the dynamic process of the soil flow canno...

AI Technical Summary

Problems solved by technology

Through the test, the disadvantage is that if the soil box is filled with soil, due to the large amount of soil and the support point in the front, it will be more laborious to pull the pulley. It’s too convenient, and it’s impossible to change the slope continuously

Then, the patent No. ZL201610710187.3 was applied for "a three-dimensional simulation monitoring runoff test tank with variable slope type soil flow", which solved this problem. There are some other disadvantages: first, if the rotation axis is placed at the front end, after the soil box is filled with soil, the rear end of the runoff trough is lifted according to the aforementioned methods, and the runoff trough is rotated through an angle around the front end rotation axis. Second, if the rotation axis of the runoff groove is set in the middle, although the aforementioned lifting method is relatively light, the runoff groove can be rotated through an angle, but if a larger angle is to be changed, during the rotation, the runoff groove will come out The nozzle will touch the ground, so that the runoff trough can no longer turn over a large angle (that is, a large slope)

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