FI94986C - Sampling Device - Google Patents

Description

94986

SAMPLING DEVICE

The invention relates to a sampling device, in particular for flowing liquids, which sampling device comprises a body at least partially open at its upper and lower ends, inside which there is a space for sampling, and lids for closing the space for sampling.

Samples are taken from different liquids to study their properties and the concentrations of different substances and materials. Such flowing liquids to be sampled include e.g. water, oil, various fuels, etc. liquids. Samples are usually taken at different depths from the liquid and certain properties are examined from the samples.

15

There are many types of sampling devices that take samples of a liquid. They are based on a structure that includes a reservoir or space through which liquid can flow when the device is immersed in the liquid. When the device is at a certain depth, there is liquid in that liquid tank, basin or other liquid space belonging to that depth. Known containers can be closed with lids or the like at a certain depth.

25 The closing mechanisms of the lids of existing sampling devices are devices that turn the lid flaps or change the position of the lid flaps to close the openings in the tank. Once the sampling device is lowered to the desired height, the lids are closed with a separate line or other member. The devices are complex structures that are expensive and susceptible to interference and do not work reliably.

The object of the invention is to provide a sampling device 35 which eliminates the drawbacks associated with current devices. In particular, the invention relates to a sampling device which is simple in construction, inexpensive to manufacture and use 2 94986 and reliable.

The object of the invention is achieved by a sampling device characterized by what is stated in the claims.

In the sampling device according to the invention, the lids are fastened to each other by a connecting member movably fastened to the body, the lids being arranged to move together with respect to the body, closing or opening the space. When using the device, it is immersed in the liquid and allowed to sink to the desired depth. When the instrument is submerged, the water pressure pushes the lid to the open position and the liquid can flow through the sampling mode. When the movement is stopped, the connecting member and the lids 15 attached to it are pressed down by gravity and close the space inside the body. When the device is lifted up, the lids close the space tightly and the liquid stays there. The device does not include swivel, hinged, or articulated covers, so it is simple in construction and works reliably and reliably.

the invention will now be described in more detail with reference to the accompanying drawing, in which Figure 1 shows an embodiment of a sampling device according to the invention in cross-section with the lids in the open position, and Figure 2 shows the device of Figure 1 with the lids in the almost closed position.

The sampling device according to the figures comprises a body 1,: lids 3, 4, a connecting member 5 and brackets 6. The body 1 is open at both ends and has a space 2 for the sample in the middle. The connecting member 5 is a rather long, almost body-length, rod-like part. A cover 35 3, 4 is attached to each of its ends. The connecting member is movably attached to the brackets 6 fixed to the frame. The brackets are fixed: inside the frame, they extend to the center of the frame and 3 94986 the connecting member is placed In addition, a support 8 is placed on the upper end of the sampling device, on which the device is moved.

5 When the sampling device is used, immerse it in water, sinking it downwards as shown in Figure 1. The liquid flows through the body and the space 2 and the lids are in the open position pushed by the liquid. When the device has been lowered to the desired depth, the covers 3, 4 and the connecting member 5 are pushed down to the position shown in Fig. 2. In Figure 2, the covers are not fully closed. In the closed position, the upper cover 3 is against the seals 9 at the upper end of the body, closing the upper opening. The lower lid 4, in turn, abuts the edges 10 of the opening 15 of the space, closing the lower opening. When the device is moved upwards, the lids press tightly against the edges of the openings and the liquid sample can be lifted reliably and securely.

The invention is not limited to the preferred embodiment shown, but may vary within the scope of the inventive idea formed by the claims.

Claims (2)

A sampling apparatus, in particular for flowing liquids, to which the sampling apparatus belongs to one of its upper and lower ends at least partially open frame (1), before which there is a space (2) for the sample, at the frame movable to the fixed lid (3, 4) for closing the space (2) for sampling and a support (8) located at the upper end, supported on which the device is arranged to move, characterized in that the lids (3, 4) ) are attached to each other by an interconnecting member (5) located within the frame, which is fixedly movable to fasteners (6) formed within the frame, the lids being arranged to move together in relation to the frame opening space (2), where the frame is moved downwards in the liquid, and the closing space (2), where the frame is held in place or where the frame is raised upright. 2. A sampling apparatus according to claim 1, characterized in that the connecting means is located in the middle of the frame.