RU1830140C - Remote handling sampler - Google Patents

Abstract

Use: sampling a helicopter. The inventive sampler remote sampling from a helicopter contains a cylindrical container with sampling holes, a trigger device and a device for closing samples of sampling holes made in the form of a piston connected to a trigger device and equipped with a locking device, while the sampling holes are equipped with valves connected by a vertical rod, the piston is placed above the container, rigidly connected to the bottom of the valve stem, provided with a spring connected to the spa device and a guide tube rigidly connected to the container, the device for closing the sampling holes is made in the form of a float mounted outside the guide tube with the possibility of movement along it, equipped with a cable drive and a pin connected to the drive, while the guide tube and piston made with coaxial diametrical holes for receiving checks therein. 1 ill. fe

Description

The invention relates to the field of oceanographic equipment and can be used to study the pollution of the surface of the seas and water bodies.

An object of the invention is to provide a sampler capable of automatically collecting samples from a surface reservoir.

The drawing shows a surface automatic sampler.

It consists of a housing including a sample container (1) and a guide tube (cylinder) (2) rigidly connected to it. A cylindrical float (3) made of polyurethane foam with a through central hole is put on top of the pipe (2). The hole in the float is processed so that

so that it freely, but with friction, slides along the outer surface of the guide tube. Through the second through hole, a cable drive (4) in the form of a thick kapron thread is passed along its height. On top of the float, the thread is rigidly fixed to the thrust washer (5). On top of the thread passed through the adapter pulley (6) is attached a pin (7) in the form of a steel rod with a hole in the end for attaching the thread. A piston (8) is located and can freely move inside the guide tube (2) in the form of a continuous metal cylinder. From above, a spring rod (9) is bolted to it. A metal rod (10) is screwed onto the thread from below into the piston to secure two rubber valves on it

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(eleven). Guide tube (2) f piston (8). t ha (9) and rod (10) together form a valve closing mechanism. In the central part of the piston, a through transverse hole was drilled along its diameter, coinciding with similar holes in the guide tube. Holes serve to pass and hold checks in them when the valves are in the open position. A radial thrust pin (12) is fastened to the bottom of the piston, which serves to open the valves by pressing it and lowering the valve closing mechanism. To keep the piston from turning, the pin moves along a through vertical groove (13) in the wall of the guide tube. T ha holds the valves (11) in the closed position. Its free end is secured at the top of the guide tube (2) by a bolt (14). At the same time, the bolt (14) serves to fasten the nylon cord (15) for lowering and returning the sampler.

The sampler works as follows.

Before descending from the helicopter, the valves are opened by pressing the stop pin (12) and lowering the valve closing mechanism until the holes in the piston (8) and the guide tube (2) are aligned. A pin (7) is inserted into the hole so that its end protrudes from the pipe wall. In this case, the Kapron cable of the cable drive (4) must be tensioned and thrown over the adapter pulley (6). The sampler in the drawing is shown in this initial position. When the sampler is immersed, the sample is taken through the open lower valve (11) and air is released through the upper one. Surfacing the float then causes the tension of the rope drive thread (4)

pulling out the checks (7) and thereby automatic closing of the valves under the action of the spring rod (9).

The proposed sampler makes it possible to remotely take a sample from a surface of a reservoir from a helicopter, which makes it possible to study the contamination of the surface of reservoirs with high productivity. It should also be noted the reliability of the proposed design.

Claims (1)

Gain Formula Remote Sampling Sampler helicopter samples containing a cylindrical container with sampling holes, a trigger device and a device for closing samples of sampling holes, made in the form of a piston connected with a trigger device and equipped with a locking device, characterized in that, in order to enable automatic sampling of liquid from the surface layer of the reservoir, the sampling holes are provided with valves connected by a vertical rod, the piston is placed above the container, rigidly connected to the bottom of the valve rod equipped with a spring connected with a trigger device and a guide tube rigidly connected to the container, the device for closing the sampling holes is made in the form of a float mounted outside the guide pipes with the possibility of moving along it, equipped with a cable drive and a pin connected to the drive, while the guide tube and piston are made with coaxial diametrical holes to place checks in them. If