JP3494633B2 - Survey and sampling equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for sampling water from a dam, lake, marine, ocean, or boring hole, and in particular, enables individual sampling of water at a plurality of depth positions with a single drooping operation regardless of the depth. The present invention also relates to an excellent survey water sampling device capable of simultaneously collecting soil on the bottom of water.

[0002]

2. Description of the Related Art Conventionally, when collecting water from dams, lakes, marine, etc. for surveys, a dedicated water sampling container is hung with a rope, and when the target depth is reached, the water sampling container is operated to fill the container. It was done by pulling it up.

[0003]

However, in such a conventional water sampling method, when a plurality of samples having different depths are required at the same place, it is necessary to perform the same work many times, which is very troublesome. There was a problem that it took. In addition, when collecting the bottom soil, it cannot be done at the same time as the water sampling, so a separate process must be performed.
There was a problem that it took a lot of trouble and required extra cost and time. Further, when water is sampled from a boring hole or the like, it is carried out by an air lift or the like, but there is a problem that a deeper device requires much equipment and labor.

The present invention has been made in order to solve the above-mentioned conventional problems, and the purpose thereof is to enable individual water sampling at a plurality of positions with a single drooping operation regardless of the depth. Therefore, it is an object of the present invention to provide an excellent survey water sampling device which can simultaneously sample soil on the water bottom and can easily sample water at a desired position and range from a boring hole or the like.

[0005]

In order to solve the above problems, in the survey water sampling apparatus according to the first aspect of the present invention, a water sampling hose which has an air vent in the upper portion and hangs down into water,
A check valve for introducing fluid to the adoption disposed at the distal end of the water hose blood collection for water in the hose, Tona is, the adoption Ho for water
Is equipped with a drainage port in the peripheral wall that can be plugged at a specified length.
It has characterized the Rukoto.

In the survey water sampling device according to claim 2,
The survey water sampling device according to claim 1, wherein the water sampling hose is extended by connecting a plurality of unit hoses with a joint.
It is, provided with a seal plug can drain port in the peripheral wall portion of the joint
And said that you are.

In the survey water sampling device according to claim 3,
The survey water sampling device according to claim 2, wherein the joint
Of the unit hoses arranged above the pair of unit hoses
Upper hose joint fixed to the lower end of the
For the lower hose fixed to the upper end of the unit hose arranged in
It is formed so that the joint part can be attached and detached, and can be installed continuously.
A check valve for introducing fluid into the chamber
It is characterized in that it is provided at the joint portion for the hose .

In the survey water sampling device according to claim 4,
In the survey water sampling device according to claim 3, the unit hose is
Equipped with a cap that detachably seals at least the lower end side
It is characterized by

In the survey water sampling device according to claim 5,
The survey water sampling device according to any one of claims 1 to 4, wherein the check valve includes an annular valve seat and the valve seat.
The water flowing in through the valve seat easily separates from the valve seat.
Consists of a thin disc-shaped valve body that can run along the
The valve body is easily
With a material that has a larger specific gravity than the fluid so as to block the valve seat
It is characterized by being formed .

According to the survey water sampling device of claim 6,
The survey water sampling device according to any one of claims 1 to 5 , wherein a sampler is provided at a tip portion of the water sampling hose.
Is connected, and the water sampling hose has a check valve at the tip.
It is characterized in that it is communicated with the sampler through .

[0011]

In the survey water sampling device according to the first aspect of the present invention, the water sampling hose is hung in the water at the survey point. If the water sampling hose is long, suspend it while supporting it with a wire rope. During the operation of hanging the water sampling hose, the air in the water sampling hose escapes from the upper part, so the water level in the hose does not drop and always maintains the same level as the water level on the atmosphere side. After the tip of the water sampling hose reaches a predetermined depth, by pulling up the water sampling hose,
The check valve prevents the water in the hose from flowing out from the lower end,
A fluid such as water or seawater from zero depth to a predetermined depth can be collected in the water sampling hose. By disposing a drainage port at a plurality of positions at predetermined depths with respect to the water sampling hose, by opening the drainage port from the water and discharging it into a container, etc. , a fluid such as water or seawater required depth, it is water sampling to Rukoto every predetermined depth.

Therefore, according to the present invention, fluids such as water or seawater at predetermined depths in dams, lakes, oceans, etc. can be simply sampled in one operation without disturbing the water levels. You can The structure is extremely simple and accurate water sampling can be performed in a short time.

In the survey water sampling device according to the second and third aspects, the water sampling hose is connected by connecting a plurality of unit hoses, and the joint has a drainage port. Therefore, after extending to a predetermined depth in water, water can be sampled at each joint pitch when pulling up. Therefore, according to the present invention, by setting the length of the unit hose suitable for the content of the investigation, for example, 1 m, it is possible to obtain an effect that fine water sampling can be performed and a detailed analysis can be easily performed.

In the water sampling device for investigation according to the fourth aspect , when the joint is separated, it is divided into unit hoses. Since there is a check valve in the joint portion below the unit hose, the water inside is retained in that state. If at least the check valve side is capped, it can be held safely even if there is a shock or the like. Therefore, in the present invention, when the water sampling hose is pulled up, each time the drainage port appears, the unit hoses can be collectively processed without being taken out into separate containers, so that there are many water sampling points at large depths. Can work efficiently,
It is possible to obtain the effect that the trouble of carrying another container into and out of the site can be saved.

In the water sampling device for investigation according to the fifth aspect , since the thin valve body of the check valve can follow the flowing water flowing into the water collecting hose, it does not interfere with the inflow and simply collects water. The water hose is used to partition a part of the water surface in a deep direction so that the water can be collected in the hose as gently as possible. Further, when the sampling hose is pulled up, the valve body heavier than the fluid immediately sits on the valve seat. Therefore, in the present invention,
It is possible to obtain the effect that water can be sampled as gently as possible without disturbing the natural state without pushing down the water level in the water sampling hose and leaking water downward when the hose is pulled up.

In the survey water sampling apparatus according to the sixth aspect , since the sampler is connected to the tip of the water sampling hose, the sampling hose is hung until the sampler is pushed into the water bottom. Therefore, first, when the sampler descends below the surface of the water, the water surface communicates with the inside of the hose for sampling via the sampler, and the water is sampled into the hose as it is. Collect inside. Therefore, in the present invention, it is possible to continuously collect water and the soil at the bottom of the water in one operation. Also, because it can be implemented with one simple device,
Scaffolding and setup on site can be simplified, and labor and cost can be reduced.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 shows a survey water sampling device of the present embodiment, where (a) is a device diagram, (b) is a cross-sectional view showing a joint mounting part, and (c) is a connecting part between a sampler and a water sampling hose and It is sectional drawing which shows the non-return valve circumference.

Reference numeral 1 denotes a water sampling hose, which is formed in a long length by connecting a unit hose 2 having a predetermined length, for example, a length of 10 m, with a joint 3. Reference numeral 4 is a winding drum, and the winding start portion (that is, the upper end portion of this hose) of the water sampling hose 1 is opened as an air vent hole although not shown. The hose material is tough and flexible, and transparent hose can be used if conditions permit. The joint 3 is provided with a unit hose 2 on each of the small-diameter portions 5 provided above and below.
Each unit hose 2 is connected in series by inserting and fixing it with a tightening tool 6, and a drain port 7 is provided in the central large diameter part.
Has been opened, and is tightly closed with the screwed plug 8.
At the time of work, the screwed plug 8 can be opened to drain water from above to this level (indicated by line 9).

A sampler 10 is connected to the lower end of the water sampling hose 1. The structure of the connecting portion is similar to the connection of the joint 3 with the unit hose 2. The sampler 10 is formed as a double tube in which a steel pipe 12 serving as an outer shell is screwed into a sampler head 11 and an inner pipe 13 made of transparent plastic is inserted into the steel pipe 12. Further, a communication port 14 is formed in the upper portion of the sampler head 11 so that the inner pipe 13 can communicate with the upper water sampling hose 1. FIG. 2 is an explanatory view showing a usage state of the survey water sampling device, and reference numeral 15 in the drawing is a fall prevention valve arranged on the lower end side of the inner pipe.

Reference numeral 16 is a check valve, and an O-ring is fitted to the upper end surface of the sampler head 11 provided with the communication port 14 to form a valve seat 17, and a material having a specific gravity larger than that of water on the valve seat 17, for example, A disc-shaped valve body 18 formed of a thin brass plate having an outer diameter slightly smaller than the inner diameter of the unit hose 2 is mounted in a free state.

The survey water sampling device is operated by a winch (not shown). Reference numeral 19 in the drawing denotes a wire rope wound by this winch, which is connected to the upper end of the sampler 10. The sampler 10 also serves as a weight, and the wire rope 19 prevents the weight of the sampler 10 from acting on the water sampling hose 1.

Next, the operation of the survey water sampling device of the first embodiment will be described. First, the water sampling hose 1 is preliminarily wound on the winding drum 4, and the water sampling hose 1 is unwound from the sampler 10 side in synchronization with the unwinding of the wire rope 19 at the survey point. Be done. During the unwinding operation of the water sampling hose 1, the internal air is pushed up against the entire length of the sampler 10 and the water sampling hose as the tip end of the sampler 10 gets into the water and the sampler 10 moves into the water. However, since this air escapes from the upper end opening of the water sampling hose 1, the water level in the hose is not pushed down and is always maintained at the same level as the water level on the atmosphere side.

The water level reaching the upper end of the sampler 10 reaches the valve seat 17 through the communication port 14 and pushes up the valve body 18. Since the valve body 18 has a thin disc shape, it turns along the water flow and does not prevent the inflow of water. Although the water level is actually at a fixed position and the check valve 16 side is displaced and sinks into the water from the water surface, the water level rises relative to the check valve 16 in relative view. When the sampler 10 at the tip reaches the bottom, if the water bottom is a soft deposit or the like, it gradually falls due to its own weight and can be collected over the entire length of the inner tube 13. Further, in the water sampling hose 1, the valve body 18 sinks and seats on the valve seat 17 when the water flow is stopped, and the valve seat 17 is closed. Further, in the water sampling hose 1, the water level is at the same level as the water level on the atmosphere side.

After unwinding the water sampling hose 1 for a predetermined length, the water sampling hose 1 is immediately wound up. During this winding, the fall prevention valve 15 in the sampler is closed to hold the deposit 21 in the inner pipe 13, and the check valve 16 prevents water in the hose from flowing out from the lower end. Lift up. Since the joint 3 appears every 10 m during the winding of the water sampling hose 1, the threaded plug 8 is opened and the water sample 22 is transferred to another container 20 each time. When the last sampler 10 is lifted, the inner tube 13 can be taken out and stored together with the inner tube.

As described above, the first embodiment
In the survey water sampling device, the water sampling hose 1 can be wound down to a predetermined water depth and then immediately wound up to sample water and deposits at the same time. In addition, individual water sampling for every 10 m deeper can be performed without disturbing the depth condition with only one operation. The same is true for large depths. The structure is extremely simple and easy to operate. The amount of water sampled can be easily changed by changing the hose diameter. The check valve 16 has a simple structure, saves space, and can act swiftly.

Next, a second embodiment will be described. In the second embodiment, the same components as those in the first embodiment are designated by the same reference numerals, and the detailed description thereof will be omitted.
FIG. 3 shows a state in which the falling weight 23 is set on the sampler 10. The falling weight 23 is one in which two parts are fitted around the water sampling hose 1 and slidably mounted,
The wire rope 24 is used for lifting and dropping it on the sampler 10. In the second embodiment, the effect that the deposit 21 can be easily collected even when the deposit 21 is hard is obtained.

Next, a third embodiment will be described. In the third embodiment, the same components as those in the first and second embodiments are designated by the same reference numerals and the detailed description thereof will be omitted. FIG. 4A shows a state in which joints 3 are provided at a pitch of 1 m in the water sampling hose 1 described in the first embodiment. That is, the drainage port 7 is characterized by having a pitch of 1 m. In the third embodiment, it is possible to obtain an effect that it is possible to perform fine analysis by collecting water every 1 m pitch. This length and hose diameter can be set arbitrarily.

Next, a fourth embodiment will be described. In the fourth embodiment, the same components as those in the first to third embodiments are designated by the same reference numerals and the detailed description thereof will be omitted. FIG. 4B shows a joint structure of the fourth embodiment, and in the water sampling hose 1 of the third embodiment, the joint is a separable joint 3 having a check valve.
The feature is that it is set to 0. The joint 30 includes an upper hose joint 30a fixed to the lower end of the unit hose 2 arranged above the unit hose, and a lower hose fixed to the upper end of the unit hose 2 arranged below. The joint portion 30b is formed so as to be attachable to and detachable from the joint portion 30 with the screw portion 31, and the check valve 16 and the drainage port 7 are provided in the upper hose joint portion 30a. FIG. 4C shows the joint 30 separated from the joint 30 for the upper hose.
It shows a state in which a cap 32 provided with a male screw or a female screw is screwed into the joint portion 30a for the lower hose and the joint portion 30b for the lower hose to be hermetically sealed. Therefore, in the fourth embodiment, when the water sampling hose 1 of FIG. 4 (b) is pulled up, each time the drainage port 7 appears, the sampled water is divided into one container without being taken out into another container, and immediately at both ends of the unit hose. Since the unit is closed with a cap and the unit hoses can be collected and post-processed, work can be performed efficiently even if there are many water sampling points at large depths, and another container can be carried to the site. It is possible to obtain effects such as saving labor such as carrying out.

Next, a fifth embodiment will be described. In the fifth embodiment, the same components as those in the first to fourth embodiments are designated by the same reference numerals, and the detailed description thereof will be omitted. FIG. 5 shows an example of a water sampling method from a boring hole according to the fifth embodiment, in which water is collected within a limited range by using the packer 35 and the water sampling hose 1 according to the third embodiment. It is characterized by this. First, as shown in FIG. 5A, the rod 36 is inserted into the boring hole 35, and the packer 37 provided at the tip thereof is set at the upper position of the setting position 38. By supplying air to the packer 37 and enlarging the packer 37, the upper part of the packer 37 is separated from the upper part as a non-water sampling section 39 and the lower part of the packer 37 is defined as a water sampling section 40. Four
1 is a casing. Next, as shown in FIGS. 5B and 5C, the water sampling hose 1 or another water absorption hose is inserted up to the set position 38, and the water is drained from the non-water sampling section 39. After the drainage of the non-water sampling section 39 is completed, as shown in FIG.
By inserting the water sampling hose 1 to the lower end of the water sampling section 40 and pulling it up as it is, water can be sampled over the entire section of the water sampling section 40 without being disturbed. In the fifth embodiment, for example, the lower portion 10 of the 100 m non-water sampling section 39 is
It is possible to easily sample water every 1 m pitch from the m water sampling section with simple equipment, and it is possible to perform detailed analysis of the groundwater vein economically and efficiently in a short time. To be The work process is not limited to the above, and the casing 41 may be unnecessary depending on the sampling conditions, geology, and the like. Further, instead of extending the water sampling hose by 110 m, a 12 to 13 m water sampling hose can be suspended by a rope to sample water.

Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to this embodiment. For example, the method of fixing the unit hose 2 to the joint can be set arbitrarily. Further, the method of separating the joints is arbitrary, and for example, a union joint method may be used. The survey water sampling device of the present invention is not limited to dams, oceans, etc., and can easily collect fluids stored at the bottom of lakes, huge tanks, tankers, etc., and safely conduct surveys. Although water was collected with a hose, a hard pipe or the like may be used when the joint is of a separable type. In this case, the winding drum is not required by connecting or dividing during hanging or pulling up. Although the drainage port 7 is provided in the joint 3, it may be provided in the hose itself by providing a slightly thick seat on the wall surface of the hose. In this case, a long hose may be used instead of the unit hose.

[Brief description of drawings]

FIG. 1 (a) is a device diagram showing a survey water sampling device according to a first embodiment of the present invention, (b) is a cross-sectional view showing the joint mounting part, and (c) is a connecting part between a sampler and a water sampling hose. FIG. 3 is a cross-sectional view showing around the check valve.

FIG. 2 is an explanatory diagram showing a usage state of the survey water sampling device according to the first embodiment.

FIG. 3 is an explanatory view showing a state where a falling weight is set on the sampler of the second embodiment.

FIG. 4 (a) is an explanatory view showing a water sampling hose of the third embodiment in which the drainage port has a short pitch, and (b) and (c) are split water sampling hoses of the fourth embodiment. It is explanatory drawing which shows the state made into a formula.

FIG. 5 is an explanatory view showing a method of collecting from a boring hole according to a fifth embodiment in the order of (a), (b), (c) and (d).

[Explanation of symbols]

1 Water sampling hose 2 unit hose 3 joints 7 drain 8 Plug with screw for drainage port 10 sampler 14 Communication between sampler and sampling hose 16 Check valve 17 Check valve seat 18 Check valve body 30 joints 30a Upper hose joint section 30b Lower hose joint 31 screw part

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E21B 25/00-43/00 E02D 1/06

Claims (6)

(57) [Claims] 1. A water sampling hose having an air vent in the upper part, which hangs down in water, and a check valve, which is arranged at the tip of the water sampling hose and introduces a fluid into the water sampling hose. Do Ri, the adopted for water hose, a seal plug can drain port every predetermined length
A survey water sampling device, which is equipped on the peripheral wall . 2. The water sampling hose comprises a plurality of unit hoses.
Connect and extend the drain outlet that can be sealed with the joint.
The survey water sampling device according to claim 1, wherein the survey water sampling device is provided on a peripheral wall portion of the joint . 3. The joint is one of a pair of unit hoses.
An upper hose fixed to the lower end of the unit hose arranged above
Above the unit joint for the space and the unit hose arranged below
Attaching and removing the lower hose joint part fixed at the end to connect
Non-returnable to allow fluid to enter the upper hose
A drainage port that can be plugged with a valve is attached to the upper hose joint.
Survey water sampling device according to claim 2, characterized in that provided. 4. The unit hose is detachable at least at the lower end side.
The survey water sampling device according to claim 3, further comprising a cap that seals in place . 5. A check valve is provided with an annular valve seat and the valve seat.
Flow away from the valve seat and easily follow the water flow.
And a thin disc-shaped valve body
The valve disc is easily seated when the fluid is stationary or in reverse flow.
Made of a material with a larger specific gravity than the fluid so that
Claims 1 to 4 are characterized in that
The survey water sampling device described in any of the above. 6. A sampler is attached to the tip of the water sampling hose.
The water sampling hose is connected via a check valve at the tip.
The sample water sampling device according to any one of claims 1 to 5 , wherein the sample water sampling device is connected to the sampler.