JPH11173960A - Underwater water-collecting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underwater water-collecting apparatus that can obtain several kinds of samples by a single throw-in, pull-out operation. SOLUTION: A suction tube 7 connected to the outside via an opening instrument 4 and an underwater pump 9 are connected to a sealed container 1 storing a plurality of water-collecting bags 3A... of a soft film in the underwater water- collecting apparatus. Sampling tubes 7A... connected to the water-collecting bags 3A... communicate with the outside via opening instruments 4A... respectively. A control circuit 10 controls driving and stopping of the underwater pump 9 and opening, closing of the opening instruments 4, 4A....

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater water sampling device for sampling and recovering water from a lake, a river, a sea, or the like.

[0002]

2. Description of the Related Art An underwater water sampling device is used for sampling from a water layer having a desired depth for water quality analysis and the like. An underwater water dispenser that has been widely used in the past is disclosed in, for example,
As disclosed in Japanese Unexamined Patent Publication No. 117429/1996 and Japanese Patent Laid-Open Publication No. Hei 8-220084, it is composed of a container having an inlet and an outlet for water. The water dispenser described in Japanese Patent Application Laid-Open No. 7-77484 combines a deformable sample bag and a spring made of a shape memory alloy, and the sample bag that expands due to the deformation of the spring due to a temperature difference in water from a water sampling port. Water is being sucked.

[0003]

The underwater water dispensers described in these publications sample one kind of water with one water dispenser. Therefore, when trying to perform a plurality of samplings at a certain position with a time lag, or to perform a plurality of samplings for each desired depth (or for each place), a plurality of water sampling devices are prepared and collected. The operation of water supply → sampling → recovery had to be done separately.

[0004] The present invention has been made to solve the above-mentioned problems, and a different operation can be performed in a single charging and collecting operation.
To provide an underwater water sampling device capable of sampling several types of water at a place or at a depth.

[0005]

The underwater water dispenser of the present invention made to achieve the above object has a plurality of water collecting bags made of a flexible film as shown in FIG. 1 corresponding to the embodiment. 3A ... in a sealed container 1
The suction tube 7 and the submersible pump 9 that communicate with the outside via water are connected, and the sampling tubes 7A that are connected to the respective water sampling bags 3A. It has a control circuit 10 for controlling the driving and stopping of the pump 9 and the opening and closing of the opening / closing members 4, 4A.

In this underwater sampling device, when the opening and closing device 4 is opened and put into the water, and dive to a position to be sampled, the internal pressure of the sealed container 1 and the external pressure are reduced to a tube 7.
Is maintained evenly throughout. At the set timing, the switch 4 is closed by a command from the control circuit 10, and immediately thereafter, the switch 4A is opened, and then the submersible pump operates. When the water 2 is discharged from the sealed container 1 by the suction operation of the submersible pump 9, the water collecting bag 3A of the flexible film having the water suction opening is opened.
Only expands (see the dotted line) to replenish the discharge volume of water 2 and draw in surrounding water from the water intake. At the timing when the suction of the predetermined amount is completed, the submersible pump 9 is stopped by a command from the control circuit 10, the switch 4A is closed, and the first sampling is completed. When the water sampler is kept in this state and time elapses, and / or when it is sunk or moved to a desired depth, the second and subsequent sampling operations are performed in the same manner as the first sampling operation. repeat. When the required number of samplings (maximum number of sampling bags) is completed, raise the underwater sampling device to collect.

The underwater water dispenser of the present invention shown in FIG.
As shown in FIG. 5, the suction tube 7 and the sampling tube are moved by the movement of the clamp lever 19 in which the opening / closing members 4, 4A... Abut the cam 18 on the rotor 17 connected to the drive motor 8 (see FIG. 3). .. Can be properly implemented by a configuration in which 7A. .

As shown in FIG. 2, the underwater sampling device of the present invention has a cutter 6 in which the tips 5A of the tubes 7A are closed and the tips 5A are cut off. , The control circuit 10 preferably has a function of controlling the operation of the cutter 6.

Thus, the tip 5A of the tubes 7A...
... is closed, and the tube 7 is cut off before sampling by separating at the sampling place and time.
A. Sampling can be performed without accumulating water in other water qualities.

In the underwater water sampling device of the present invention shown in FIG.
As shown in FIG. 3, the cutter 6 is attached to the rotating member 16. As shown in FIG. 4 and FIG.
Is a structure in which the tubes 7A are opened and closed by the advance and retreat of the clamp lever 19 which abuts on the cam 18 on the rotor 17,
Since the rotating member 16 and the rotor 17 are connected to the same drive motor 8, the operation can be appropriately performed. Thus, both the cutter 6 and the opening / closing tools 4A are driven by the drive motor 8
, The closed tip 5A of the tube 7A.
... the cooperative operation of disconnection and opening and closing of each opening / closing tool 4A becomes abundant.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 and 2 are block diagrams showing the construction of an embodiment of an underwater water dispenser to which the present invention is applied. In the underwater dispenser of FIG. 1, the sealed container 1 is connected to a tube 7 via an opening / closing tool 4 and communicates outside the container, and further connected to a submersible pump 9. A plurality of water collection bags 3A
3B are arranged, and a tube 7A is attached to the water collecting bag 3A.
.. Are connected to the outside via the opening / closing tools 4A, 4B,.

[0013] In the underwater water dispenser of the embodiment described here, as shown in Fig. 2, the tips 5A, 5B ... of the tubes 7A, 7B ... are closed, and the tips 5A, 5B.
Are separated from each other.

More specifically, as shown in FIG.
The hermetically sealed container 1 and the hermetically sealed circuit storage tube 27 are attached to a chassis plate 26 fixedly mounted on the chassis 5. Water collecting bags 3A, 3B,... Are arranged in the sealed container 1. The water sampling bags 3A, 3B,... Are bags having flexibility and some elasticity, and are preferably bags of Teflon or silicon film in consideration of environmental resistance, antimicrobial resistance, and the like. Medical Teflon bags are easy to collect samples and exchange bags, and inexpensive and optimal. Are connected to the water collecting bags 3A, 3B, respectively, and extend to the outside through the lid 28 of the sealed container 1. Furthermore, each tube 7A, 7B ...
4B... Are passed through the disc 30 and the tips are fitted into the respective unopened holes of the disc 31 of the cutter base and fixed respectively. The tubes 7A, 7B,... Are covered with coil springs 14A, 14B,... From the disc 30 to the disc 31, and are curved in a semicircular shape in the section. The cutter 6 is mounted on the rotating member 16 at a height above the upper surface of the disk 31 of the cutter table. The shaft of the rotating member 16 is connected to the waterproof drive motor 8. A submersible pump 9 is attached to a frame 25 on the upper part of the sealed container 1, a water absorption pipe 20 is provided inside the sealed container 1, and a drain port is open to the outside. A waterproof motor 33 is attached to the submersible pump 9. The control circuit 10, the drive circuit 12, the drive circuit 13, and the power supply battery 11 are arranged in the circuit housing cylinder 27, and are connected to the water discharge motor 33 and the motor drive 8 therefrom. A tube 7 extending to the outside of the container via the opening / closing tool 4 leads to the sealed container 1.

Opening / closing tool 4 for tubes 7, 7A, 7B,...
· · · 4A · 4B · · · is sandwiched between the disc 30 attached to the frame 25, and in detail, FIG.
And FIG. 5 (partial plan view). The rotor 17 connected to the drive motor 8 is provided with a concave cam 18 at only one position on the outer periphery. As shown in the state of the opening / closing tool 4, the clamp lever 1 abutting the outer periphery of the rotor 17
Numeral 9 is pressed by a spring 35 to crush and close the tube 7. As shown in the state of the opening / closing tool 4A, the clamp lever 19 abutting against the concave cam 18 is provided with the concave cam 1.
The tube 7A is opened by being returned by the depth of 8 and separated from the tube 7A.

The underwater dispenser of this embodiment operates as follows. Before putting the water sampler, the sealed container 1 is filled with water. The water to be filled is for communicating with the surrounding water through a tube 7 to a predetermined position to equalize the pressure difference between the inside and outside of the sealed container 1 and for contact with the water in the bag 3A for sampling water. Since there is no such water, any water such as fresh water, lake water and seawater may be used.

When the ship reaches the sea area to be sampled by a ship or the like, an underwater water sampling device to which a rope is connected is inserted.
Sink to the desired depth. At first, the opening / closing member 4 of the tube 7 is opened, and when a signal is output from the control circuit 10 at a predetermined timing and the drive circuit 13 is operated, the power battery 11
Current flows through the drive motor 8, and the drive motor 8
(And the disc 31) passing through each tube 7, 7A, 7B
・ ・ Rotate by one pitch. The rotation member 1
When the cutter 6 attached to the pivot 6 rotates and cuts only the tube 7A at the upper surface of the disk 31, the curved tube 7
A directly extends from the disk 30 by the restoring force of the spring 14A. On the other hand, when the rotor 17 is also rotated by the rotation of the drive motor 8, the clamp lever 19 of the opened tube 7 moves from the concave cam 18 to the outer periphery of the rotor 17, and is pushed by the spring 35 to crush the tube 7, and the inside and outside of the sealed container 1 Block communication. Further, the clamp lever 1 which has been in contact with the outer periphery of the rotor 17
9 comes back against the concave cam 18 and the tube 7A is opened.

Next, when a signal is output from the control circuit 10 and the drive circuit 12 is operated, the motor water discharge 33 is rotated by the current of the power supply battery 11, the submersible pump 9 is operated, and the sealed container 1 is operated.
From the seawater 2 is discharged. Then, only the water sampling bag 3A in which the tube 7A is open sucks the surrounding seawater as shown by the dotted line. At the timing when the predetermined amount of suction is completed, a signal is output from the control circuit 10 to stop the current from the drive circuit 12 to the water discharge motor 33, and the submersible pump 9 stops.

A signal is output from the control circuit 10 again, the drive motor 8 is rotated from the drive circuit 13, and when the rotor 17 rotates, the clamp lever 19 of the tube 7A which has been opened is moved from the concave cam 18 to the outer periphery of the rotor 17 Then, the tube 7A is crushed by pressing with the spring 35, and the water collecting bag 3A is sealed. At the same time, the disk 30 rotates and the cutter 6 cuts the next tube 7B. The rotation of the rotor 17 causes the next tube 7 to rotate.
B is released. Next, a signal is output from the control circuit 10,
The drive circuit 12 is operated again, the submersible pump 9 is operated, and the water sampling bag 3B sucks seawater.

After sampling a predetermined number of times in this way, the rope is wound up and the underwater sampling device is collected.

[0021]

As has been described in detail above, the underwater sampling device of the present invention can perform several types of sampling with one operation of loading and pulling. There is no space between the start and end of the sampling, including the sealed container and the sampling bag, so that there is no need for a pressure-resistant structure, and sampling can be performed as expected regardless of the water pressure (water depth). . Also, sampling can be performed without mixing other water qualities during charging, lifting, and sampling. Depending on the setting of the control circuit, selection of a water sampling bag and change of water sampling amount can be arbitrarily performed. Further, the sampling time can be freely selected.

The sampling bag of the underwater sampling device of the present invention is not taken out of the sealed container during the sampling operation, and does not come into contact with microorganisms, plankton, germs, etc. other than the intended sampling water area at all. Therefore, by performing a sterilization treatment in advance, it is possible to collect non-contaminated water while maintaining the sterility. After sampling, it is convenient when used immediately for culture or the like, or for measurement of metabolic activity. Further, by injecting a fixative or a substrate into the water collecting bag in advance, the sample can be fixed or cultured at the sampling site.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of an underwater water dispenser to which the present invention is applied.

FIG. 2 is a block diagram of another embodiment of an underwater water dispenser to which the present invention is applied.

FIG. 3 is a perspective view of an underwater water dispenser to which the present invention is applied.

FIG. 4 is a vertical sectional view of a main part of an underwater water dispenser to which the present invention is applied.

FIG. 5 is a plan view of a main part of an underwater water dispenser to which the present invention is applied.

[Explanation of symbols]

1 is a sealed container, 3A and 3B are water collection bags, 4 and 4
A, 4B ... are opening / closing tools, 5A, 5B ... are closing tips, 6 is a cutter, 7, 7A, 7B ... is a tube, 8
Is a drive motor, 9 is a submersible pump, 10 is a control circuit, 11
Is a power battery, 12 and 13 are drive circuits, 14A and 14B
.. is a coil spring, 16 is a rotating member, 17 is a rotor, 1
8 is a cam, 19 is a clamp lever, 20 is a water absorption pipe,
25 is a frame, 26 is a chassis plate, 27 is a circuit housing cylinder, 28 is a lid, 30 is a disk, 31 is a disk, 33 is a waterproof motor, and 35 is a spring.

Claims (4)

[Claims] A suction tube and a submersible pump connected to the outside via an opening / closing tool are connected to a sealed container containing a plurality of water collecting bags made of a flexible film, and a sampling tube connected to each water collecting bag is provided. An underwater water dispenser having a control circuit that communicates with the outside via an opening / closing tool and controls driving and stopping of the submersible pump and opening / closing of each opening / closing tool. 2. The underwater apparatus according to claim 1, wherein the suction tube and the sampling tube are opened and closed by a reciprocating movement of a clamp lever which abuts the opening / closing member on a cam on a rotor connected to a drive motor. Water sampler. 3. A tip of the sampling tube is closed, a cutter for cutting off the tip is provided, and the control circuit has a function of controlling the operation of the cutter. The underwater water dispenser according to claim 1, wherein the underwater dispenser operates. 4. The cutter is attached to a rotating member,
The opening / closing member is configured so that the sampling tube is opened / closed by an advance / retreat of a clamp lever which abuts on a cam on a rotor, and that the rotating member and the rotor are connected to the same drive motor, and the cooperative operation is performed. Claim 3
An underwater water dispenser according to claim 1.