JPS6234064Y2 - - Google Patents
Info
- Publication number
- JPS6234064Y2 JPS6234064Y2 JP1983022510U JP2251083U JPS6234064Y2 JP S6234064 Y2 JPS6234064 Y2 JP S6234064Y2 JP 1983022510 U JP1983022510 U JP 1983022510U JP 2251083 U JP2251083 U JP 2251083U JP S6234064 Y2 JPS6234064 Y2 JP S6234064Y2
- Authority
- JP
- Japan
- Prior art keywords
- wedge
- shaped portion
- diaphragm
- check valve
- slit
- 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
- 239000012530 fluid Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Check Valves (AREA)
Description
【考案の詳細な説明】
本考案は逆止弁、とくに流路の途中に配置され
た筒状弾性体の一端が楔状に形成されると共に、
該楔状部分を構成する両斜面がダイアフラムに形
成され、該楔状部分のエツジにおいてスリツト状
の開口を有する逆止弁の改良に関するものであ
る。[Detailed description of the invention] The present invention is a check valve, in particular, one end of a cylindrical elastic body disposed in the middle of a flow path is formed into a wedge shape, and
The present invention relates to an improvement in a check valve in which both slopes constituting the wedge-shaped portion are formed on a diaphragm, and a slit-shaped opening is provided at the edge of the wedge-shaped portion.
上記のごとき逆止弁は弁体がダイアフラムによ
つて構成されているためスリツトが開き易く、逆
止弁内から下流に向う流れを容易に許容するもの
であるが、逆流時にスリツトが開いたまま逆流防
止機能を果たし得ないことがある。 In the check valves mentioned above, the valve body is composed of a diaphragm, so the slits open easily and allow flow from inside the check valve toward the downstream. However, the slits remain open during backflow. The backflow prevention function may not be achieved.
本考案は上記の欠点を解消し確実な逆止効果の
得られる逆止弁を提供するものであつて、以下本
考案の実施例を図面に基いて説明する。 The present invention provides a check valve that eliminates the above-mentioned drawbacks and provides a reliable check effect.Examples of the present invention will be described below with reference to the drawings.
逆止弁１は筒状肉厚弾性体２の一端が楔状に形
成され、該楔状部分を構成する両斜面３、３が該
楔状部分のエツジ４以外の周辺５、５を残して陥
凹されて均一な厚みのダイアフラム６、６に形成
され、該ダイアフラムの楔状部分のエツジにおい
て前記陥凹部分に対応する長さのスリツト７状の
開口が形成されたものである。 In the check valve 1, one end of a cylindrical thick-walled elastic body 2 is formed into a wedge shape, and both inclined surfaces 3, 3 constituting the wedge-shaped portion are recessed leaving the periphery 5, 5 other than the edge 4 of the wedge-shaped portion. diaphragms 6, 6 of uniform thickness, and a slit 7-shaped opening having a length corresponding to the recessed portion is formed at the edge of the wedge-shaped portion of the diaphragm.
本考案の逆止弁は上記のごとく弁作動を行うダ
イアフラム６、６の周辺がスリツト７部分を除い
て肉厚弾性体の本体によつて一体的に支持されて
いるので、スリツト７を伸張状態に保つ力が強
く、流体の逆流時に確実な逆止効果を得ることが
できる。ここで該スリツトの伸張状態に原因す
る、流体が弁体内から下流に向うときの弁開放の
困難性は、ダイアフラムの厚みのコントロールに
よつて容易に解決することができる。また必要に
応じて流路内係止手段としてフランジ８を逆止弁
の流入端に配置することもできる。 In the check valve of the present invention, as described above, the periphery of the diaphragms 6, 6 that perform valve operation is integrally supported by the main body of the thick elastic body except for the slit 7, so that the slit 7 is in the extended state. It has a strong holding force and can provide a reliable check effect when fluid backflows. Here, the difficulty in opening the valve when fluid flows downstream from the valve body due to the stretched state of the slit can be easily solved by controlling the thickness of the diaphragm. Further, if necessary, the flange 8 can be arranged at the inflow end of the check valve as an in-flow channel locking means.
図面は本考案の実施例を示すものであつて第１
図は正面図、第２図は第１図のＡ−Ａ断面図であ
り、２は筒状肉厚弾性体、３は斜面、４はエツ
ジ、６はダイアフラム、７はスリツトである。
The drawings show an embodiment of the present invention and are shown in the drawings.
The figure is a front view, and FIG. 2 is a cross-sectional view taken along the line A-A in FIG.
Claims (1)
に、該楔状部分を構成する両斜面が該楔状部分の
エツジ以外の周辺を残して陥凹されて均一な厚み
のダイアフラムに形成され、該ダイアフラムの楔
状部分のエツジにおいて前記陥凹部分に対応する
長さのスリツト状の開口が形成されてなることを
特徴とする逆止弁。 One end of the cylindrical thick-walled elastic body is formed into a wedge shape, and both slopes constituting the wedge-shaped portion are recessed leaving the periphery of the wedge-shaped portion except for the edges to form a diaphragm of uniform thickness. A check valve characterized in that a slit-shaped opening having a length corresponding to the recessed portion is formed at the edge of the wedge-shaped portion of the diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2251083U JPS59127973U (en) | 1983-02-17 | 1983-02-17 | non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2251083U JPS59127973U (en) | 1983-02-17 | 1983-02-17 | non-return valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59127973U JPS59127973U (en) | 1984-08-28 |
| JPS6234064Y2 true JPS6234064Y2 (en) | 1987-08-31 |
Family
ID=30153606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2251083U Granted JPS59127973U (en) | 1983-02-17 | 1983-02-17 | non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59127973U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6483506B2 (en) * | 2015-04-03 | 2019-03-13 | 株式会社ブリヂストン | Backflow prevention valve and siphon drainage system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51122423U (en) * | 1975-03-29 | 1976-10-04 | ||
| JPS5352030U (en) * | 1976-10-06 | 1978-05-04 | ||
| JPH04134924U (en) * | 1991-06-07 | 1992-12-15 | 三菱重工業株式会社 | Oil film lubricated bearing |
-
1983
- 1983-02-17 JP JP2251083U patent/JPS59127973U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59127973U (en) | 1984-08-28 |
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