JPH0439530B2 - - Google Patents
Info
- Publication number
- JPH0439530B2 JPH0439530B2 JP21583387A JP21583387A JPH0439530B2 JP H0439530 B2 JPH0439530 B2 JP H0439530B2 JP 21583387 A JP21583387 A JP 21583387A JP 21583387 A JP21583387 A JP 21583387A JP H0439530 B2 JPH0439530 B2 JP H0439530B2
- Authority
- JP
- Japan
- Prior art keywords
- gate
- water level
- float
- waterway
- balance weight
- 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.)
- Expired
Links
- 230000002265 prevention Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 28
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Barrages (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21583387A JPS6458710A (en) | 1987-08-29 | 1987-08-29 | Automatic backward flow preventor for waterway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21583387A JPS6458710A (en) | 1987-08-29 | 1987-08-29 | Automatic backward flow preventor for waterway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6458710A JPS6458710A (en) | 1989-03-06 |
| JPH0439530B2 true JPH0439530B2 (enrdf_load_html_response) | 1992-06-29 |
Family
ID=16679019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21583387A Granted JPS6458710A (en) | 1987-08-29 | 1987-08-29 | Automatic backward flow preventor for waterway |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6458710A (enrdf_load_html_response) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593228A (zh) * | 2019-09-25 | 2019-12-20 | 周能为 | 农田自动灌溉恒水装置 |
-
1987
- 1987-08-29 JP JP21583387A patent/JPS6458710A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6458710A (en) | 1989-03-06 |