SU1472796A1 - Device for taking surface and bottom samples of water - Google Patents

Abstract

The invention relates to hydrological research and is intended for sampling water at predetermined levels of a water body. The purpose of the invention is to reduce the time of inspection of a water body, increase the representativeness of the samples taken and ensure obtaining more reliable information on water quality. The device is arranged in such a way that the trigger mechanisms of the sampling caps are made in the form of a pusher with a float for taking a surface water sample and a pusher with a bottom leader rod for taking the bottom water sample, and also the fact that the ability of the second trigger to operate is determined by the position of the limiter arm bottom pusher. 1 hp ff, 2 ill.

Description

one

The invention relates to devices for sampling water at predetermined horizons of a water body and can be used during express hydrochemical and hydrobiological surveys from a helicopter board, as well as from a ship, boat, etc.

The purpose of the invention is to increase the reliability of the sample, expand the functionality and simplify the design. ,

FIG. 1 shows the device, a general view; in fig; 2 - locks of trigger mechanisms for the selection of surface (a) and bottom (b) water samples, as well as a mechanism that determines the order in which triggering mechanisms are triggered.

The device consists of a carrier {ptangi 1, on which two samplers 2 are hung with lids 3, elastic harnesses 4, rods 5 fitted at both ends. With switches 6, t the lower covers 3 are equipped with taps 7 for draining the sample taken. On the upper part of the carrier rod there is a trigger for taking a surface water sample, consisting of an opening 8 in the carrier rod, a pusher 9 and a float 10. At its lower part there is a trigger for taking a bottom sample, consisting of an opening 11, a pusher 12 and the leader bar 13, In the middle part of the carrier bar is placed the yoke-stop 14, precluding the movement of the pusher 12 up to

four

Od

triggers the upper trigger.

The device works as follows

In the initial position, the ha 5 and the bottom pusher 12 are in the lower positions, the lids 3 of both samplers 2 are opened and held in this position by the thrusts 5 using the catchers 6 fixed in the locks of the corresponding trigger mechanisms. When immersed in water, the float 10, which pops up along the carrier post 1 with the help of the pusher 9, releases the safety device 6 from fastening and the elastic braids 4 pull the sampler lids. In this case, the yoke-restraint 14 represents the possibility of an upward movement of the pusher 12,

When the leader bar 13 touches the bottom of the water body, the pusher 12 releases the securing device 6 of the second sampler and the elastic straps 4 from the fastener fasten the caps 3.

After the device has been lifted aboard a helicopter, a ship, etc., the samplers are released and the covers are reset, the device is ready for further work,

The application of this invention allows for the sampling of water from the helicopter, which reduces the time of the survey of the water body, increases the representativeness

sampled and provides more reliable information 9 water quality.

Claims (2)

1. A device for sampling surface and bottom water samples, including samplers with caps mounted on a carrier bar, the covers are provided with elastic straps, drafts and trigger mechanisms, characterized in that, in order to increase the reliability of the sample, enhance functionality and simplify the design, it is equipped with a leader rod installed in the lower part of the carrier rod, the trigger mechanism of the sampling cap of the surface sample is made in the form of a pusher with a float mounted on it, are placed m in the upper part of the carrier rod gi, and the trigger mechanism of the sampling caps of the bottom sample is made in the form of a pusher mounted on the leader rod, 2. The device according to claim 1, about tl and - whitening in that it is equipped with a rocker-limiter of the stroke of the pusher of the trigger mechanism of the bottom sampler caps installed in the middle part of the carrier rod.