JPH0545829Y2 - - Google Patents
Info
- Publication number
- JPH0545829Y2 JPH0545829Y2 JP1988000112U JP11288U JPH0545829Y2 JP H0545829 Y2 JPH0545829 Y2 JP H0545829Y2 JP 1988000112 U JP1988000112 U JP 1988000112U JP 11288 U JP11288 U JP 11288U JP H0545829 Y2 JPH0545829 Y2 JP H0545829Y2
- Authority
- JP
- Japan
- Prior art keywords
- elastic member
- valve seat
- valve
- check valve
- stem
- 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 - Lifetime
Links
- 238000004891 communication Methods 0.000 claims description 10
- 239000006260 foam Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000012856 packing Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Check Valves (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、井戸ポンプの逆止弁に関するもので
ある。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a check valve for a well pump.
従来の逆止弁１７は、第３図に示すように、ス
テム１２の下端円板１２ａに円板状パツキング１
３を取り付け、前記ステム１２の上部を弁カバー
１４のガイド１５内を上下動するように配置する
とともに、パツキング１３を弁座１６に当接可能
となしている。
As shown in FIG. 3, the conventional check valve 17 has a disk-shaped packing 12a at the lower end of the stem 12.
The upper part of the stem 12 is arranged to move up and down within a guide 15 of a valve cover 14, and the packing 13 is made capable of abutting against a valve seat 16.
上記従来の逆止弁１７は、揚水中にステム１２
の上部とガイド１５との隙間によりステム１２が
傾き、これによりパツキング１３も傾くので、揚
水が停止した際にパツキング１３と弁座１６とが
平行に接触せずに漏れが生じ易く、パツキング１
３と弁座１６との間に異物が介在し易いという問
題点があつた。また、逆止弁１７における漏水に
より下流側の水の逆流を生じ、逆止弁１７が急に
閉鎖した際にウオーターハンマーを生ずる恐れが
あつた。
The conventional check valve 17 has a stem 12 during pumping.
The stem 12 is tilted due to the gap between the upper part of the valve and the guide 15, and the packing 13 is also tilted. Therefore, when water pumping is stopped, the packing 13 and the valve seat 16 are not in parallel contact and leakage is likely to occur.
3 and the valve seat 16 was a problem in that foreign matter was likely to be present between the valve seat 16 and the valve seat 16. Further, water leakage in the check valve 17 causes a backflow of water on the downstream side, and there is a risk of water hammer occurring when the check valve 17 suddenly closes.
本考案の目的とするところは、上記の問題点に
かんがみ、きわめて簡単な構造で、漏水、異物の
噛込み及び急激な圧力上昇を、確実に防止しえる
井戸ポンプの逆止弁を提供するにある。 In view of the above-mentioned problems, the purpose of the present invention is to provide a check valve for a well pump that has an extremely simple structure and can reliably prevent water leakage, entrapment of foreign objects, and sudden pressure increases. be.
上記目的は、吸込管とポンプ本体との連通路に
配置され、しかも、前記連通路に設けた弁カバー
と、この弁カバーに設けたガイド内を上下動可能
に配設されたステムと、このステムの下端に設け
た下端円板と、この下端円板に取り付けた弾性部
材と、前記連通路の前記ガイドと対向する位置に
設けられ、かつ、前記弾性部材が当接する弁座と
を備えてなる井戸ポンプの逆止弁において、前記
弾性部材を、独立気泡体から構成し、かつ、前記
弁座に当接するところの下面側が円錐面となるよ
うに円錐状に形成することにより、達成される。
The above purpose is to provide a valve cover disposed in a communication passage between a suction pipe and a pump body, and provided in the communication passage, a stem movable up and down in a guide provided in the valve cover, and a stem provided in the communication passage. The valve seat includes a lower end disk provided at the lower end of the stem, an elastic member attached to the lower end disk, and a valve seat provided at a position facing the guide of the communicating path and against which the elastic member abuts. In the check valve for a well pump, the elastic member is made of a closed cell and is formed into a conical shape so that the lower surface side where it contacts the valve seat is a conical surface. .
かかる逆止弁によれば、弾性部材の円錐円によ
り弁座に円心状に接触するので、漏れを防止でき
る。また、揚水中は、円錐面により水流をスムー
スにするので、弁座との間の異物噛込みを防止で
きる。さらに、弾性部材が弁座に接触する際に
は、前後の圧力差により弾性部材が弁座に押圧さ
れて水封性が増大するとともに、弾性部材が弁座
に押圧された際に時間遅れが生じ、急激な圧力上
昇を抑えることができる。
According to such a check valve, since the conical shape of the elastic member contacts the valve seat in a circular manner, leakage can be prevented. Furthermore, since the conical surface smoothes the water flow during pumping, it is possible to prevent foreign objects from getting caught between the valve seat and the valve seat. Furthermore, when the elastic member contacts the valve seat, the elastic member is pressed against the valve seat due to the pressure difference between the front and rear, increasing the water-sealing property, and there is also a time delay when the elastic member is pressed against the valve seat. It is possible to suppress a sudden pressure rise.
以下、本考案の一実施例を第１図および第２図
より説明する。ポンプ本体１は、第１図に示すよ
うに据付時に分離室２のホツパキヤツプ３よりケ
ーシング４内に呼び水をできるようになつてい
る。ケーシング４内に羽根車５が配置されてい
る。吸込管６とポンプ本体１との連通路Ａには、
逆止弁が配置されている。羽根車５の回転によ
り、吸込管６及び逆止弁７を経て揚水し、分離室
２内で気水分離して吐出管８より水栓９を経て給
水される。圧力スイツチ１０及び圧力タンク１１
により断続運転される。
An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. As shown in FIG. 1, the pump main body 1 is designed so that water can be primed into the casing 4 from the hopper cap 3 of the separation chamber 2 at the time of installation. An impeller 5 is arranged within the casing 4. In the communication path A between the suction pipe 6 and the pump body 1,
A check valve is provided. As the impeller 5 rotates, water is pumped up through the suction pipe 6 and the check valve 7, separated into steam and water in the separation chamber 2, and water is supplied from the discharge pipe 8 through the faucet 9. Pressure switch 10 and pressure tank 11
It operates intermittently.
逆止弁７は、第２図に示すように、連通路Ａに
設けた弁カバー１４と、この弁カバー１４に設け
たステム１８と、このステム１８の下端に設けた
下端円板１９と、この下端円板１９に嵌着された
弾性部材２０とを備えている。 As shown in FIG. 2, the check valve 7 includes a valve cover 14 provided in the communication passage A, a stem 18 provided on the valve cover 14, and a lower end disc 19 provided at the lower end of the stem 18. The elastic member 20 is fitted onto the lower end disk 19.
弾性部材２０は、内部に小さな泡状の空間が無
数に形成してなる部材、すなわち、独立気泡体よ
り成形され、かつ、第２図に示すように、下面が
円錐面２０ａとなるように、円錐状に形成されて
いる。 The elastic member 20 is molded from a member having countless small bubble-like spaces formed therein, i.e., a closed-cell foam, and is formed in a conical shape so that the lower surface forms a conical surface 20a, as shown in FIG. 2.
ステム１８の上部は、弁カバー１４のガイド１
５内を上下動するように配置され、この上下動に
よつて弾性部材２０の円錐面２０ａが弁座１６に
当接可能となつている。弁座１６は、連通路Ａの
ガイド１５と対向する位置に設けられている。 The upper part of the stem 18 is connected to the guide 1 of the valve cover 14.
This vertical movement allows the conical surface 20a of the elastic member 20 to come into contact with the valve seat 16. The valve seat 16 is provided at a position facing the guide 15 in the communication path A.
かかる逆止弁７によれば、弾性部材２０の円錐
面２０ａにより弁座１６に同心状に接触するの
で、漏水を防止できる。また、揚水中は円錐面２
０ａにより水流をスムースにするので、弁座１６
との間の異物噛込みを防止できる。さらに、弾性
部材２０が弁座１６に接触する際には、前後の圧
力差により弾性部材２０が弁座１６に押圧されて
水封性を増大する効果を有する。しかも、弾性部
材２０が弁座１６に弾力を持つて押圧されること
によつて時間遅れが生じ、急激な圧力上昇を抑え
ることができる。 According to this check valve 7, since the conical surface 20a of the elastic member 20 contacts the valve seat 16 concentrically, water leakage can be prevented. Also, during pumping, the conical surface 2
0a makes the water flow smooth, so the valve seat 16
This can prevent foreign objects from getting caught between the Further, when the elastic member 20 contacts the valve seat 16, the elastic member 20 is pressed against the valve seat 16 due to the pressure difference between the front and rear, which has the effect of increasing the water-sealing property. Moreover, since the elastic member 20 is elastically pressed against the valve seat 16, a time delay occurs, and a sudden rise in pressure can be suppressed.
本考案によれば、弾性部材を、独立気泡体から
構成し、かつ、弁座に当接するところの下面側が
円錐面となるように円錐状に形成するとともに、
この弾性部材をステムの下端に設けた下端円板に
設けるという簡単な構造で、漏水及び異物の噛込
みを防止でき、かつ、水密性が高く、しかも、急
激な圧力上昇のない井戸ポンプの逆止弁を提供す
ることができる。
According to the present invention, the elastic member is made of a closed cell, and is formed into a conical shape so that the lower surface side that contacts the valve seat is a conical surface.
With a simple structure in which this elastic member is installed on the lower end disk provided at the lower end of the stem, it can prevent water leakage and foreign matter from getting caught, and is highly watertight, and is the opposite of a well pump without sudden pressure rise. A stop valve can be provided.
第１図は本考案の一実施例を示す井戸ポンプの
概略図、第２図は本考案の一実施例を示す逆止弁
の縦断面図、第３図は従来の逆止弁を備えた井戸
ポンプ縦断面図である。
１……ポンプ本体、６……吸込管、７……逆止
弁、１４……弁カバー、１５……ガイド、１６…
…弁座、１８……ステム、１９……下端円板、２
０……弾性部材、２０ａ……円錐面、Ａ……連通
路。
Fig. 1 is a schematic diagram of a well pump showing an embodiment of the present invention, Fig. 2 is a vertical sectional view of a check valve showing an embodiment of the present invention, and Fig. 3 is a diagram showing a well pump equipped with a conventional check valve. It is a longitudinal cross-sectional view of a well pump. 1...Pump body, 6...Suction pipe, 7...Check valve, 14...Valve cover, 15...Guide, 16...
... Valve seat, 18 ... Stem, 19 ... Lower end disk, 2
0...Elastic member, 20a...Conical surface, A...Communication path.
Claims (1)
れ、しかも、前記連通路Ａに設けた弁カバー１４
と、この弁カバー１４に設けたガイド１５内を上
下動可能に配設されたステム１８と、このステム
１８の下端に設けた下端円板１９と、この下端円
板１９に取り付けた弾性部材２０と、前記連通路
Ａの前記ガイド１５と対向する位置に設けられ、
かつ、前記弾性部材２０が当接する弁座１６とを
備えてなる井戸ポンプの逆止弁において、 前記弾性部材２０を、独立気泡体から構成し、
かつ、前記弁座１６に当接するところの下面側が
円錐面２０ａとなるように円錐状に形成したこと
を特徴とする井戸ポンプの逆止弁。[Claims for Utility Model Registration] A valve cover 14 disposed in a communication passage A between the suction pipe 6 and the pump body 1, and further provided in the communication passage A.
A stem 18 is arranged to be movable up and down within a guide 15 provided on the valve cover 14, a lower end disk 19 provided at the lower end of this stem 18, and an elastic member 20 attached to this lower end disk 19. and provided at a position facing the guide 15 of the communication path A,
and a check valve for a well pump comprising a valve seat 16 that the elastic member 20 abuts, wherein the elastic member 20 is made of a closed-cell foam;
A check valve for a well pump, characterized in that the check valve for a well pump is formed into a conical shape so that the lower surface side that abuts the valve seat 16 is a conical surface 20a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988000112U JPH0545829Y2 (en) | 1988-01-06 | 1988-01-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988000112U JPH0545829Y2 (en) | 1988-01-06 | 1988-01-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01105790U JPH01105790U (en) | 1989-07-17 |
| JPH0545829Y2 true JPH0545829Y2 (en) | 1993-11-26 |
Family
ID=31198848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988000112U Expired - Lifetime JPH0545829Y2 (en) | 1988-01-06 | 1988-01-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0545829Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0801063D0 (en) * | 2008-01-21 | 2008-02-27 | Charles Austen Pumps Ltd | Conduit for a condensate removal pump |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5510128A (en) * | 1978-07-04 | 1980-01-24 | Toyooki Kogyo Co Ltd | Poppet valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51130107U (en) * | 1975-04-11 | 1976-10-20 |
-
1988
- 1988-01-06 JP JP1988000112U patent/JPH0545829Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5510128A (en) * | 1978-07-04 | 1980-01-24 | Toyooki Kogyo Co Ltd | Poppet valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01105790U (en) | 1989-07-17 |
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