JPH02478U - - Google Patents
Info
- Publication number
- JPH02478U JPH02478U JP7874888U JP7874888U JPH02478U JP H02478 U JPH02478 U JP H02478U JP 7874888 U JP7874888 U JP 7874888U JP 7874888 U JP7874888 U JP 7874888U JP H02478 U JPH02478 U JP H02478U
- Authority
- JP
- Japan
- Prior art keywords
- valve member
- valve chamber
- valve
- casing
- communicates
- 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
- 230000002265 prevention Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 3
- 235000014676 Phragmites communis Nutrition 0.000 claims description 2
- 238000013459 approach Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
Landscapes
- Check Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Description
第１図は本考案の一実施例に係る逆流防止装置
の通水時の縦断面図、第２図はその通水停止時の
縦断面図、第３図はその逆流防止装置を使用する
風呂付き給湯装置の構成図である。
１０…逆流防止装置、１１…ケーシング、１２
…弁室、１３…入口、１４…出口、１５…ドレン
口、１６…弁部材、１７…連通孔、１８…磁性体
、１９…リードスイツチ。
Fig. 1 is a longitudinal sectional view of a backflow prevention device according to an embodiment of the present invention when water is flowing, Fig. 2 is a longitudinal sectional view of the backflow prevention device when water flow is stopped, and Fig. 3 is a bath using the backflow prevention device. FIG. 10... Backflow prevention device, 11... Casing, 12
...Valve chamber, 13...Inlet, 14...Outlet, 15...Drain port, 16...Valve member, 17...Communication hole, 18...Magnetic material, 19...Reed switch.
Claims (1)
状の弁室と、弁室の一端に開口され上流側に連通
される入口と、弁室の他端に開口され下流側に連
通される出口と、大気中に連通されるドレン口と
、弁室内に弁室の軸心方向に変位可能に挿入され
た弁部材とを備え、この弁部材に上流側と下流側
とを連通させる連通孔を設け、上流側の水圧と下
流側の水圧との差圧により弁部材が弁室の他端部
に変位したときに弁部材が出口とドレン口との間
を遮断し、弁部材が弁室の一端部に変位したとき
に出口とドレン口とが連通されるように構成した
逆流防止装置において、弁部材に磁性体を固定し
、ケーシングの一端部あるいは他端部に該磁性体
が接近したときに閉成されるリードスイツチを設
けたことを特徴とする逆流防止装置。 A casing, a cylindrical valve chamber formed in the casing, an inlet that opens at one end of the valve chamber and communicates with the upstream side, an outlet that opens at the other end of the valve chamber and communicates with the downstream side, and an atmosphere. The valve member is provided with a drain port that communicates with the inside, and a valve member inserted into the valve chamber so as to be displaceable in the axial direction of the valve chamber. When the valve member is displaced to the other end of the valve chamber due to the differential pressure between the water pressure on the side and the water pressure on the downstream side, the valve member blocks the outlet and the drain port, and the valve member moves to one end of the valve chamber. In a backflow prevention device configured so that an outlet and a drain port communicate with each other when the valve member is displaced, a magnetic material is fixed to the valve member, and the device closes when the magnetic material approaches one end or the other end of the casing. A backflow prevention device characterized by being equipped with a reed switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7874888U JPH02478U (en) | 1988-06-13 | 1988-06-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7874888U JPH02478U (en) | 1988-06-13 | 1988-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02478U true JPH02478U (en) | 1990-01-05 |
Family
ID=31303649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7874888U Pending JPH02478U (en) | 1988-06-13 | 1988-06-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02478U (en) |
-
1988
- 1988-06-13 JP JP7874888U patent/JPH02478U/ja active Pending