JPH041489Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a water sampler, and is a simple portable plastic water sampler used for sampling water from any water layer in shallow seas, lakes, rivers, etc.

2. Description of the Related Art A water sampler is already well known, and will be explained with reference to a side sectional view schematically showing its main parts, for example, in FIG. In the figure, the hook mechanism section 18 has a hook 1.
8' is a retainer 23 attached to the center column 10.
The hook 18'' at the lower end is opened and closed left and right in the direction of the arrow, and the cylindrical body 20 above the hook 18'
The back surface of the hook arm is brought into contact with the inner surface of the opening of the hook 18'.
A cylindrical body 20 with a downward opening that engages the hanging arm of the
It is supported and held by a threaded spring 21 supported by a horizontal rod 19 attached to the center column 10 in the cylinder body 20 so as to be moved up and down with the center column 10 as the center axis. The messenger receiver 8 is vertically attached to the cylindrical shape 20 so as not to hit the ring 22 when the load is applied downward along the cylindrical shaft (not shown). Therefore, when the upper lid 5 with a jaw is pulled up and its jaw 5' is engaged with the hook 18'' of the hook 18', the upper and lower lid parts 5, 11 are placed in the hanging water sampling opening state as shown in the figure via the center column 10. Next, in the above state, the water sampler is lowered into the water with a hanging rope (not shown), and when the water sampling depth is reached, the load is dropped along the hanging rope and the load is transferred to the Messenjar receiver 8. When this is pushed down to act on the hook mechanism 18, the hook 18'' opens left and right, disengaging from the jaw 5' of the upper lid 5, lowering the center column 10, and lowering the lower lid 11. The upper lid 5 covers the lid receiving seat 25 of the water sampling tube 2 and the upper edge 2' of the water sampling tube 2, respectively, so that desired water or the like is sampled into the water sampling tube 2.

Problems to be Solved by the Invention However, since the hook 18'' is provided and the jaw portion 5' of the upper lid 5 with a jaw is engaged with the hook portion of the hook 18'', the structure is complicated and operation is troublesome.

Means for Solving the Problems Taking these points into consideration, this invention adopts a connecting pipe 1 that slides up and down with respect to a central support 10 provided with a lower pedestal 11 via an upper cover 5 and a guide 3. Attach the water bottle 2, screw the upper end of this connecting pipe 1 into the lower part of the messenger receiver 8, and
By assembling the spring 4 whose protrusion 4a engages with the recess 8a provided inside the center column 10 into the center column 10, the spring 4 can be attached to the center column 10 without having to hook the jaw on the hook part of the hook as in the conventional case. The water sampling tube 2 is kept in a suspended state by using only the elastic force of the elastic force and the engagement between the protrusion and the depression 8a provided inside the measuring jar receiver 8, and when the engagement is released, the upper lid 5, the lower pedestal 11, and the water sampling tube 2 are separated. Since the top and bottom are in close contact with each other, the structure is simple and the handling is easy.

Function: Thus, between the connecting pipe 1 provided with the water sampling cylinder 2 and the upper cover 5, the measuring tube 8 integrated with the connecting pipe 1 is connected to the central column 10 to which the lower pedestal 11 is attached.
This is done by the engagement of the protrusion 4a of the spring 4 incorporated in the center support 10 with the depression 8a of the center column 10, and the relationship is maintained using the restoring force of the spring 4 that tends to open outward. If the recess 8a and protrusion are removed by pressing force, the water sampling tube 2 can be smoothly lowered from the center column 10, and the lower pedestal 11 and the upper lid 5 can easily seal the water sampling tube 2 vertically. In addition, the space between the lower pedestal 11 and the lower end of the water sampling tube 2 and the upper end of the water sampling tube 2 and the upper cover 5 can be sufficiently opened, so that when the water sampler is suspended, water enters from the bottom of the water sampling tube 2 and the water sampling tube 2 is filled with water. 2 and upward through the interior of the tube, allowing for good displacement and reliable water sampling at the desired depth.

Embodiment FIG. 1a is a side cross-sectional view showing the suspended state of the water sampler according to this invention, and FIG. c.
is the depression 8a of the spring 4 and the gear receiver 8.
FIG. 3 is an enlarged cross-sectional view of the engaging portion of FIG. Figure 2 is a side sectional view of the same part after water sampling, and Figure 3 is a side sectional view of the same part after water sampling.
Parts corresponding to figures are indicated by the same reference numerals.

In the figure, 1 is a connecting pipe, 2 is a water sampling tube, 3 is a guide for the same water sampling tube, 4 is a spring with a <-shaped bent side, 5 is the upper lid, 5a is the same rubber packing, and 6 is attached to a part of the upper lid 5. Air inlet and thermometer inlet part, 7 is a rope support part, 8 is a hollow 8a as well as a cylindrical measuring gear receiver, 9 is a hanging rope, 10 is a central support, 1
1 is the lower pedestal, 12 is the water sampling tube receiving part, 1
3 is a leg, 14 is a sample water outlet, and 15 is a nut. In addition, 16 is a spring inserted between the upper lid 5 and the messenger receiver 8 on the outer periphery of the connecting tube 1, and plays an auxiliary role in pressing the upper lid 5 against the upper end of the water sampling tube 2. Thus, at the lower end of the central support 10 there is a lower pedestal 11 having a water sampling cylinder receiving part 12, legs 13, a sample water outlet 14, etc., and when the water sampling cylinder 2 falls, the lower part of the water sampling cylinder 2 is moved to the water sampling cylinder receiving part 12. firmly catch the water to prevent water from leaking from the bottom end of the water sampling tube 2.
Next, in the center of the central support 10, a guide 3 having three legs as shown in FIG. 2 along with the center support 10. Further, an upper lid 5 having a rubber gasket 5a is provided above the center column 10 via the connecting tube 1, and as the connecting tube 1 descends, the upper lid 5 is supported by the upper edge of the water sampling tube 2 via the rubber gasket 5a of the upper lid 5. Then, the upper end of the water sampling cylinder 2 is sealed to prevent water leakage. The uppermost end of the center support 10 is screwed into the rope support 7 on which the inner wall of the measuring jar receiver 8 slides, and the water sampler is suspended in the water and lowered, and when it reaches the desired depth, it is passed along the rope and is collected by the measuring jar. He hits Uke 8. Further, the uppermost end of the connecting pipe 1 is screwed into the lower part of the messenger gear receiver 8, and a recess 8a is provided inside the messenger gear receiver 8, so that the spring 4 incorporated in the center support 10 has a restoring force that tends to open outward. A depression 8a in the protrusion 4a of the bent part
1, and the water sampling cylinder 2 is fixed and held as shown in FIG. 1a. Therefore, when the messenger hits the messenger receiver, the recess 8a inside the messenger receiver moves, the protrusion 4a of the spring 4 is removed from the recess 8a, and the messenger receiver 8 falls.
In addition, when installing the spring 4 into the center support 10, the first
In Figure c, insert the hole 10a into which the spring 4 is inserted into the center support 1.
0, and the rope support part 7 is screwed into the top of the central support 10 to restrict the spring 4 from opening more than necessary.

Next, to explain the operation, in the suspended state shown in FIG. The water sampling tube 2 and the lower pedestal 11 are both held in the position shown in FIG. 1. Next, the water sampler as shown in FIG. 1 is suspended in the water and lowered, and when the desired depth is reached, a messenger jar (not shown) is dropped along the rope 9. When the messenger hits the messenger receiver 8, the recess 8 inside the messenger receiver 8
The protrusion 4a of the spring 4, which had fallen into the position a, is pushed by the inner wall of the hollow inside the messenger holder 8, and the spring 4 is deformed toward the center of the center column 10, and the messenger holder 8 is pushed down by the inner wall of the spring 4. It climbs over the protrusion and falls, and the water sampling cylinder 2 also falls. As the water sampling tube 2 falls, the lower end of the water sampling tube 2 rests on the rubber cushion receiving part 12 of the water sampling tube 2 receiving part of the lower pedestal 11 as shown in FIG. The tube 2 is closed from above and below by the upper lid 5 and the lower pedestal 11 to seal the water inside, thereby preventing loss of sample water. FIG. 1c is an enlarged side sectional view showing a state in which the <-shaped protrusion 4a of the spring 4 is engaged with the recess 8a of the messenger receiver 8. This spring 4 has a spring force that constantly tries to open outward, so that it can be smoothly inserted into the recess 8a inside the measuring jar receiver 8, and the water sampling tube 2 can be easily inserted into the recess 8a as shown in Fig. 1a.
can be maintained in this state.

Effects of the invention In this way, the connecting pipe 1 is provided with the water sampling cylinder 2 and the upper lid 5 for the central support 10 to which the lower pedestal 11 is attached.
The structure is simple, and the engagement and disengagement operations are easy and reliable, as the connection between the connecting tube and the connecting tube is maintained by the spring force of the spring 4 and the engagement of the spring 4 with the recess 8a of the messenger receiver 8, which is integrated with the connecting pipe. be.
Furthermore, since this device is made of plastic and does not use metal or vinyl chloride, it is light in weight, easy to handle, and convenient to carry, and the collected samples can be used for pollution measurements and analysis of trace metals in water.

[Brief explanation of drawings]

FIG. 1a is a side sectional view of the water sampler according to this invention in a suspended state, FIG. 1b is a front view of the water sampling tube guide 3, and FIG. FIG. 2 is an enlarged side sectional front view of the section, and FIG. 2 is a partial side sectional view of the same after water sampling. FIG. 3 is a partial side sectional view of a conventionally known water sampler. In the figure, 1 is a connecting pipe, 2 is a water sampling cylinder, 3 is a guide, 4 is a spring, 5 is an upper lid, 8 is a messenger holder, 10 is a central support, and 11 is a lower pedestal.

Claims (1)

[Claims for Utility Model Registration] (1) A lower pedestal 11 is provided at the lower end of the center column 10,
A water sampling cylinder 2 is attached to the center using a guide 3 via a connecting pipe 1 that can slide around the periphery of the central support 10, and an upper lid 5 is provided at the upper end of the central support 10 via the connecting pipe 1. The upper end of this connecting pipe 1 is screwed into the lower end of a cylindrical messenger gear receiver 8, and a recess 8a is provided inside the messenger gear receiver 8, and the protrusion 4a of the spring 4 incorporated into the central support 10 in a suspended state. A water sampler designed to be engaged with each other. (2) The water sampler according to claim 1, in which the spring 4 is a spring material having a protrusion with a cross section of <<.