JPS62185763U - - Google Patents
Info
- Publication number
- JPS62185763U JPS62185763U JP19195285U JP19195285U JPS62185763U JP S62185763 U JPS62185763 U JP S62185763U JP 19195285 U JP19195285 U JP 19195285U JP 19195285 U JP19195285 U JP 19195285U JP S62185763 U JPS62185763 U JP S62185763U
- Authority
- JP
- Japan
- Prior art keywords
- drain
- piston
- outlet
- inlet
- valve body
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
Landscapes
- Safety Valves (AREA)
Description
第１図は本考案の一実施例を示す給水状態の縦
断面図であり、第２図は同実施例の逆流時の縦断
面図、第３図は同実施例の排水状態を示す縦断面
であり、第４図は他の実施例の縦断面図、第５図
は更に他の実施例の縦断面図である。
１…弁箱、１〜１…流入口、１〜２…流出口、
１〜３…排水口、１〜４，１〜５，１〜６，１〜
７…シリンダー内面、２…ピストン状弁体、２〜
５…連通孔、３…ピン、４…伝達部材、５…パイ
プ。
Fig. 1 is a vertical cross-sectional view of an embodiment of the present invention in a water supply state, Fig. 2 is a longitudinal cross-sectional view of the same embodiment during backflow, and Fig. 3 is a longitudinal cross-sectional view of the same embodiment in a drainage state. FIG. 4 is a longitudinal cross-sectional view of another embodiment, and FIG. 5 is a longitudinal cross-sectional view of still another embodiment. 1... Valve box, 1-1... Inlet, 1-2... Outlet,
1-3...Drain port, 1-4, 1-5, 1-6, 1-
7...Cylinder inner surface, 2...Piston-shaped valve body, 2~
5...Communication hole, 3...pin, 4...transmission member, 5...pipe.
Claims (1)
トン状弁体が、前記シリンダー側面に開口する流
入口、流出口および排水口の流入口と流出口間お
よび流出口と排水口間の流路を開通遮断して給水
状態と排水状態の二つの状態を選別する水抜栓に
おいて、少なくとも給水状態にあつては流入口か
らの圧力水が、前記ピストン状弁体の底部に作用
して上昇力が生じるように前記ピストン状弁体に
は底部に至る連通孔を設けるとともに、その他端
においては動力の伝達部材と適当な量だけ自由に
摺動できるように遊嵌結合をすることにより、給
水管側の圧力が大気圧より低くなつたときに、前
記ピストン状弁体自体が自動的に移動して流入口
と流出口間の流路を遮断することを特徴とする水
抜栓の逆流防止機構。 A piston-shaped valve body that reciprocates within a cylinder formed in the valve box opens a flow path between the inlet and the outlet and between the outlet and the drain of the inlet, outlet, and drain opening on the side of the cylinder. In a drain valve that shuts off and separates two states, a water supply state and a drain state, at least in the water supply state, pressure water from the inlet acts on the bottom of the piston-shaped valve body to generate a rising force. The piston-shaped valve body is provided with a communication hole that reaches the bottom, and the other end is loosely connected to the power transmission member so that it can slide freely by an appropriate amount, thereby reducing the pressure on the water supply pipe side. A backflow prevention mechanism for a drain plug, characterized in that when the pressure becomes lower than atmospheric pressure, the piston-shaped valve body itself automatically moves to block a flow path between an inlet and an outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19195285U JPH027984Y2 (en) | 1985-12-12 | 1985-12-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19195285U JPH027984Y2 (en) | 1985-12-12 | 1985-12-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62185763U true JPS62185763U (en) | 1987-11-26 |
| JPH027984Y2 JPH027984Y2 (en) | 1990-02-26 |
Family
ID=31146576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19195285U Expired JPH027984Y2 (en) | 1985-12-12 | 1985-12-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH027984Y2 (en) |
-
1985
- 1985-12-12 JP JP19195285U patent/JPH027984Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH027984Y2 (en) | 1990-02-26 |