JPH0167568U - - Google Patents
Info
- Publication number
- JPH0167568U JPH0167568U JP1987163174U JP16317487U JPH0167568U JP H0167568 U JPH0167568 U JP H0167568U JP 1987163174 U JP1987163174 U JP 1987163174U JP 16317487 U JP16317487 U JP 16317487U JP H0167568 U JPH0167568 U JP H0167568U
- Authority
- JP
- Japan
- Prior art keywords
- air
- solenoid valve
- way solenoid
- tank
- porous cup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Description
図面は本考案に係る土壌水分張力測定器の自動
エアー抜き装置の一実施例を示す配管図である。
１……土壌水分張力測定器（テンシヨンメータ
）、２……ポーラスカツプ、３……空気溜め部、
７，８……二方電磁弁、９……脱気水タンク、１
０……上部タンク、１１……下部タンク、１２，
１５……三方電磁弁、１４……エアーポンプ。
The drawing is a piping diagram showing an embodiment of an automatic air venting device for a soil moisture tension measuring instrument according to the present invention. 1... Soil water tension measuring device (tension meter), 2... Porous cup, 3... Air reservoir section,
7, 8...Two-way solenoid valve, 9...Deaerated water tank, 1
0... Upper tank, 11... Lower tank, 12,
15...Three-way solenoid valve, 14...Air pump.
Claims (1)
方電磁弁を設けた２個の給水側と排水側の接続口
を設け、一方の接続口のポーラスカツプ側に圧力
センサを連通した土壌水分張力測定器に対して、
前記給水側接続口を脱気水を貯溜する下部タンク
と連通し、また前記排水側接続口を三方電磁弁を
介して上部タンク及び下部タンクと連通すると共
に、該上部タンクと下部タンクを三方電磁弁によ
つて連通し、上部タンクに水量を一定に保持する
フロートスイツチを設け、その上部空気室にエア
ーポンプを連通して成り、タイマによつて一定時
間ごとに各電磁弁とエアーポンプを駆動し、前記
ポーラスカツプ内空気溜め部の空気を排出するよ
うにしたことを特徴とする土壌水分張力測定器の
自動エアー抜き装置。 The air reservoir at the top of the porous cup has two connection ports on the water supply side and the drainage side, each equipped with a two-way solenoid valve, and a pressure sensor is connected to the porous cup side of one of the connection ports. for,
The water supply side connection port is connected to a lower tank that stores deaerated water, and the drainage side connection port is connected to an upper tank and a lower tank via a three-way solenoid valve, and the upper tank and the lower tank are connected to each other via a three-way solenoid valve. A float switch is connected to the upper tank to maintain a constant water level through a valve, and an air pump is connected to the upper air chamber.A timer drives each solenoid valve and air pump at regular intervals. An automatic air venting device for a soil moisture tension measuring instrument, characterized in that the air in the air reservoir in the porous cup is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987163174U JPH0167568U (en) | 1987-10-27 | 1987-10-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987163174U JPH0167568U (en) | 1987-10-27 | 1987-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0167568U true JPH0167568U (en) | 1989-05-01 |
Family
ID=31447662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987163174U Pending JPH0167568U (en) | 1987-10-27 | 1987-10-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0167568U (en) |
-
1987
- 1987-10-27 JP JP1987163174U patent/JPH0167568U/ja active Pending