Split-flow fluid director applied to underground water sampling and capable of accurately adjusting flow velocity

[0045] refer to figure 1 and figure 2 , which is a shunt-type deflector that can accurately adjust the flow rate for groundwater sampling disclosed in the present invention, including a pipe body 1, a sampling port and a sample outlet, and the sampling port and the sample outlet are respectively arranged at both ends of the pipe body 1 , the sampling port is set at the upper end of the tube body 1, and the sample outlet is set at the lower end of the tube body 1; the tube body 1 is made of transparent plastic material, and the upper end of the tube body 1 is integrally formed with two connecting rings 34, It is arranged symmetrically on both sides of the pipe body 1 , and two connecting rings 34 are bound with connecting ropes 32 . The outer wall of the pipe body 1 near the lower end is coated with a counterweight 31, and the outer wall of the pipe body 1 is provided with a support ring 33 for supporting the counterweight 31. The support ring 33 is integrally formed with the pi

[0059] refer to Figure 6 and Figure 5 The difference between the present invention and the embodiment 1 is that a split flow deflector that can accurately adjust the flow rate for groundwater sampling is: the end of the sample outlet pipe 7 away from the drainage pipe 11 is provided with a guide cone 39, and the guide cone 39 is away from the drain pipe 11. One end of the sample pipe 7 is welded with an anti-drop rod 41, and the anti-drop rod 41 is arranged along the radial direction of the sample pipe 7; an opening and closing valve ball 40 is placed in the guide cone 39, and the anti-falling rod 41 can prevent the opening and closing valve from opening and closing. The ball 40 falls out from the guide cone 39 ; a filter screen 52 is arranged in the drainage tube 11 . One end of the drainage tube 11 extending into the sample outlet tube 7 is welded with an abutment rod 42, and the abutment rod 42 is arranged along the radial direction of the drainage tube 11. When the drainag