JPH0227073U - - Google Patents
Info
- Publication number
- JPH0227073U JPH0227073U JP10554688U JP10554688U JPH0227073U JP H0227073 U JPH0227073 U JP H0227073U JP 10554688 U JP10554688 U JP 10554688U JP 10554688 U JP10554688 U JP 10554688U JP H0227073 U JPH0227073 U JP H0227073U
- Authority
- JP
- Japan
- Prior art keywords
- flow
- water
- absorption chamber
- passage
- negative pressure
- 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 9
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims 2
Landscapes
- Details Of Valves (AREA)
Description
第１図は本考案の実施例に係る止水栓の平面図
、第２図は同底面図、第３図は同正面図、第４図
は同背面図、第５図は同左側断面図、第６図は同
右側断面図、第７図は第１図の―線断面図、
第８図は第１図の―線断面図、第９図は第８
図の―線断面図である。第１０図は従来例を
示す断面図である。
１…止水栓、２…ケーシング、３…流入口、４
…流通路、５…吸込口（空気通路）、６…流通路
、７…弁座、８…弁体、９…操作軸、１２…通水
管、２０…最小径部、２２…圧力吸収室、２３…
開口、２４…逆止弁。
Fig. 1 is a plan view of a water stop valve according to an embodiment of the present invention, Fig. 2 is a bottom view thereof, Fig. 3 is a front view thereof, Fig. 4 is a rear view thereof, and Fig. 5 is a left side sectional view thereof. , Figure 6 is a sectional view on the right side of the same, Figure 7 is a sectional view taken along the line - in Figure 1,
Figure 8 is a cross-sectional view taken along the - line in Figure 1, and Figure 9 is a cross-sectional view of Figure 8.
FIG. FIG. 10 is a sectional view showing a conventional example. 1... Water stop valve, 2... Casing, 3... Inflow port, 4
...Flow passage, 5...Suction port (air passage), 6...Flow passage, 7...Valve seat, 8...Valve body, 9...Operation shaft, 12...Water pipe, 20...Minimum diameter part, 22...Pressure absorption chamber, 23...
Opening, 24...check valve.
Claims (1)
けられた流通路を有する一体のケーシングと、 該流通路に設けられた止水栓部と、 該流通路の一部を構成するように設けられた、
水の流通により負圧を発生させるように流路断面
積が水の流れ方向に向つて次第に小さくなり、内
径の最も小さい最小径部を経て再び水の流れ方向
に向つて次第に流路断面積が大きくなる負圧発生
部分と、 該最小径部又はその近傍であつてかつそれより
も下流側の部分において負圧発生部分に連通する
ように設けられた圧力吸収室と、 この圧力吸収室を大気に連通させる通路と、 この通路に設けられ圧力吸収室内に向つてのみ
空気が流入することを許容する逆止弁とを備えて
なる水撃吸収機能を有する止水栓。[Scope of Claim for Utility Model Registration] An integral casing having an inlet, an outlet, and a flow passage provided to communicate these, a water stop valve provided in the flow passage, and one of the flow passages. established to constitute the
The cross-sectional area of the flow path gradually decreases in the direction of water flow so that negative pressure is generated by the flow of water, and the cross-sectional area of the flow path gradually decreases in the direction of water flow after passing through the smallest diameter part with the smallest inner diameter. A negative pressure generating portion that increases in size, a pressure absorption chamber provided to communicate with the negative pressure generating portion at or near the minimum diameter portion and a downstream portion thereof, and a pressure absorption chamber that is connected to the atmosphere. What is claimed is: 1. A water stop valve having a water hammer absorption function, comprising: a passage communicating with the pressure absorption chamber; and a check valve provided in the passage and allowing air to flow only into the pressure absorption chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10554688U JPH0531343Y2 (en) | 1988-08-10 | 1988-08-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10554688U JPH0531343Y2 (en) | 1988-08-10 | 1988-08-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0227073U true JPH0227073U (en) | 1990-02-22 |
| JPH0531343Y2 JPH0531343Y2 (en) | 1993-08-11 |
Family
ID=31338257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10554688U Expired - Lifetime JPH0531343Y2 (en) | 1988-08-10 | 1988-08-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0531343Y2 (en) |
-
1988
- 1988-08-10 JP JP10554688U patent/JPH0531343Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0531343Y2 (en) | 1993-08-11 |