JPH0527449U - Check valve - Google Patents
Check valveInfo
- Publication number
- JPH0527449U JPH0527449U JP6880891U JP6880891U JPH0527449U JP H0527449 U JPH0527449 U JP H0527449U JP 6880891 U JP6880891 U JP 6880891U JP 6880891 U JP6880891 U JP 6880891U JP H0527449 U JPH0527449 U JP H0527449U
- Authority
- JP
- Japan
- Prior art keywords
- small hole
- check valve
- flow passage
- large diameter
- valve
- 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
Landscapes
- Check Valves (AREA)
Abstract
(57)【要約】
【目的】 凍結時の凍結膨脹圧の緩和と該膨脹圧による
圧迫水を逃がして逆止弁自体の安全性を確保するもので
ある。
【構成】 弁本体の水平な流通路の上部で、該流通路に
直交する水平軸を中心とする揺動弁軸に一体に垂下され
るアームには、シートパッキングを嵌装したコマを遊嵌
し、流通路の垂直内面の着座面にシートパッキングを接
離自在に応設して成る逆止弁において、前記コマの軸心
に小孔を貫設するとともに入水側小孔を大径部に連通
し、該大径部にボールを収納し、該ボールを小孔側にス
プリングで水密的に所要圧で圧着して成るものである。
(57) [Summary] [Purpose] The purpose of the present invention is to secure the safety of the check valve itself by alleviating the freezing expansion pressure during freezing and releasing the compressed water due to the expansion pressure. [Structure] An upper part of a horizontal flow passage of a valve body is integrally suspended from an oscillating valve shaft centered on a horizontal axis orthogonal to the flow passage, and a top fitted with a sheet packing is loosely fitted to the arm. In a check valve in which a seat packing is attached to the seating surface on the vertical inner surface of the flow passage so that it can be moved in and out, a small hole is formed through the axial center of the top and a small hole on the water inlet side is formed in a large diameter portion. The balls are communicated with each other, the balls are housed in the large diameter portion, and the balls are watertightly pressed to the small hole side with a spring at a required pressure.
Description
【０００１】[0001]
本考案は凍結時の膨脹圧を逃がすことのできる不凍領域の流路に使用される逆 止弁に関する。 The present invention relates to a check valve used in a flow path in an antifreeze region that can release expansion pressure when frozen.
【０００２】[0002]
在来から水道等の流路に使用されている逆止弁は積雪寒冷地においては、二次 側の水処理の状況によっては、すなわち、図２において、不凍給水栓の不凍処理 を怠って二次側給水の凍結領域の水を凍結させた場合には、凍結膨脹圧が二次側 給水の不凍領域内の水を圧迫し、逆止弁に不要の圧力が負荷される上、凍結個所 での凍結膨脹圧による破損度が高まるなどの問題があった。 The non-return valve that has been conventionally used for the flow path of water supply etc. neglects the antifreeze treatment of the antifreeze water tap depending on the condition of the water treatment on the secondary side in the snowy region, that is, in Fig. 2. If the water in the freezing area of the secondary side supply water is frozen, the freezing expansion pressure presses the water in the antifreezing area of the secondary side supply water and unnecessary pressure is applied to the check valve. There was a problem that the degree of damage increased due to the freezing expansion pressure at the freezing point.
【０００３】[0003]
本考案は凍結に伴なう圧迫水を逃がして、凍結膨脹圧を緩和させることのでき る逆止弁を提供するものである。 The present invention provides a check valve capable of relieving the expansion pressure due to freezing by squeezing compressed water accompanying freezing.
【０００４】[0004]
本考案の逆止弁は、弁本体の水平な流通路の上部で、該流通路に直交する水平 軸を中心とする揺動弁軸に一体に垂下されるアームには、シートパッキングを嵌 装したコマを遊嵌し、流通路の垂直内面の着座面にシートパッキングを係脱自在 に応設して成る逆止弁において、前記コマの軸心に小孔を貫設するとともに入水 側小孔を大径部に連通し、該大径部にボールを収納し、該ボールを小孔側にスプ リングで水密的に所要圧で圧着して成るものである。ここに、揺動弁軸とは、弁 本体に一体のものから弁本体の上部に開口した陥没溝に係脱自在に嵌着して成る ものをも含む。 The check valve of the present invention has a seat packing fitted to an arm that is integrally suspended from a swing valve shaft centering on a horizontal axis orthogonal to the horizontal flow passage in the valve body. In the check valve, which is formed by loosely fitting the above-mentioned top and seating packing on the seating surface of the vertical inner surface of the flow passage in such a way that it can be engaged and disengaged, a small hole is formed through the axis of the top and a small hole on the water inlet Is communicated with the large diameter portion, the ball is housed in the large diameter portion, and the ball is watertightly pressure-bonded to the small hole side with a spring at a required pressure. Here, the swing valve shaft also includes a swing valve shaft integrally formed with the valve body and detachably fitted into a recessed groove that is opened in the upper portion of the valve body.
【０００５】[0005]
凍結膨脹圧によって圧迫される水はコマの軸心に貫設した小孔において、ボー ルを押圧して入水側に逆流する。 The water compressed by the freeze expansion pressure presses the ball in the small hole penetrating the axis of the top and flows back to the water inlet side.
【０００６】[0006]
本考案を実施例により説明すると、図１に示すように弁本体１の水平な流通路 ２の上部で、流通路２に直交する水平軸を中心とする揺動弁軸３に一体に垂下さ れるアーム４には、シートパッキング５を嵌装したコマ６を遊嵌し、流通路２の 垂直内面にシートパッキング５を接離自在に応設して成る逆止弁において、前記 コマ６の軸心には入水側より所要径、所要深さのネジ孔７を螺設し、ネジ孔７に 向けて小孔８を貫設し、ネジ孔７にはその底部に連通小孔９を貫設したパッキン グ１０を埋設するとともに固定ネジ１１を螺嵌し、固定ネジ１１の軸心には前記 小孔８に連通する所要大径、所要深さの大径部１２を穿設し、大径部１２の底部 に連通小孔１３を貫設するとともに内部には所要の取付け荷重を設定したスプリ ング１４に押圧されるボール１５を収納し、揺動弁軸３は弁本体１の上部に着脱 自在に嵌着したアーム吊１６において、アーム吊１６の左右上面（図１では前後 ）に開口した陥没溝１７に係脱自在に嵌着して成るものである。 The present invention will be described by way of example. As shown in FIG. 1, the valve body 1 is integrally suspended from an upper portion of a horizontal flow passage 2 on a swing valve shaft 3 centered on a horizontal axis orthogonal to the flow passage 2. In the check valve formed by loosely fitting the top 6 with the seat packing 5 fitted in the arm 4, and by installing the seat packing 5 on the vertical inner surface of the flow passage 2 so as to come in contact with and separate from the arm 6, the shaft of the top 6 is provided. A screw hole 7 having a required diameter and a required depth is screwed into the core from the water inlet side, a small hole 8 is formed through the screw hole 7, and a communication small hole 9 is formed through the bottom of the screw hole 7. The packing 10 is embedded and a fixing screw 11 is screwed into the fixing screw 11, and a large diameter portion 12 having a required large diameter and a required depth which communicates with the small hole 8 is bored in the axial center of the fixing screw 11 to have a large diameter. A communication small hole 13 is provided at the bottom of the portion 12 and is pressed against a spring 14 in which a required mounting load is set. The swingable valve shaft 3 is accommodated in the recessed groove 17 opened on the left and right upper surfaces (front and rear in FIG. 1) of the arm suspension 16 in which the swingable valve shaft 3 is detachably fitted to the upper portion of the valve body 1. It is detachably fitted.
【０００７】 このようにして成る逆止弁ａは図２に示すような不凍領域に埋設されるライン に使用されるものである。この場合に凍結時に万一不凍給水栓１８の不凍処理を 怠ったときでも、凍結に伴って圧迫される水は逆止弁ａの小孔８においてボール １５を押圧し、スプリング１４と給水圧に抗して入水側に逆流し、逆止弁ａの内 部の圧力を減圧するとともに凍結個所の膨脹圧を減圧することとなる。また、シ ートパッキング５の摩耗による交換時では、蓋１９を外した後でアーム吊１６と ともにアーム４を弁本体１から取り外せば、アーム４はその揺動弁軸３をアーム 吊１６の陥没溝１７より簡単に脱却できるので交換作業が省力化される。さらに 、アーム吊１６と弁本体１とは弁本体１の着座面に欠設した凹部にアーム吊１６ の着座部底面に垂下した凸部２０を嵌入して接合されるから、弁の位置決めが安 定して止水精度が向上するほか組立作業も省力化されるものである。The check valve a thus constructed is used for a line buried in an antifreezing area as shown in FIG. In this case, even if the antifreeze treatment of the antifreeze faucet 18 is neglected at the time of freezing, the water compressed due to the freezing presses the ball 15 in the small hole 8 of the check valve a and supplies it with the spring 14. It flows back to the water inlet side against the water pressure to reduce the internal pressure of the check valve a and the inflation pressure of the frozen portion. In addition, when replacing the seat packing 5 due to wear, if the arm 4 is removed from the valve body 1 together with the arm suspension 16 after removing the lid 19, the arm 4 moves its swing valve shaft 3 into the recessed groove of the arm suspension 16. Since it can be removed more easily than 17, the replacement work is labor-saving. Further, since the arm suspension 16 and the valve body 1 are joined by fitting the convex portion 20 depending on the bottom surface of the seating portion of the arm suspension 16 into the recessed portion provided in the seating surface of the valve body 1, the valve positioning is easy. In addition to improving the water-stopping accuracy, the assembly work is also labor-saving.
【０００８】[0008]
【考案の効果】 以上のように本考案の逆止弁ａによれば、凍結時の圧迫水を入水側に逆流でき るから凍結個所の凍結膨脹圧を緩和できる上、逆止弁自体の寿命をも延命できる 効果がある。[Effects of the Invention] As described above, according to the check valve a of the present invention, the compressed water at the time of freezing can flow back to the inlet side, so that the freezing and expanding pressure at the freezing point can be relieved and the life of the check valve itself can be reduced. It also has the effect of prolonging life.
【提出日】平成３年９月２５日[Submission date] September 25, 1991
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００６[Correction target item name] 0006
【補正方法】追加[Correction method] Added
【０００６】[0006]
本考案を実施例により説明すると、図１に示すように弁本体１の水平な流通路 ２の上部で、流通路２に直交する水平軸を中心とする揺動弁軸３に一体に垂下さ れるアーム４には、シートパッキング５を嵌装したコマ６を遊嵌し、流通路２の 垂直内面にシートパッキング５を接離自在に応接して成る逆止弁において、前記 コマ６の軸心には入水側より所要径、所要深さのネジ孔７を螺設し、ネジ孔７に 向けて小孔８を貫設し、ネジ孔７にはその底部に連通小孔９を貫設したパッキン グ１０を埋設するとともに固定ネジ１１を螺嵌し、固定ネジ１１の軸心には前記 小孔８に連通する所要大径、所要深さの大径部１２を穿設し、大径部１２の底部 に連通小孔１３を貫設するとともに内部には所要の取付け荷重を設定したスプリ ング１４に押圧されるボール１５を収納し、揺動弁軸３は弁本体１の上部に着脱 自在に嵌着したアーム吊１６において、アーム吊１６の左右上面（図１では前後 ）に開口した陥没溝１７に係脱自在に嵌着して成るものである。なお、揺動弁軸 ３のアーム４に対し図１において左右両側部の重量は等しくしている。 The present invention will be described by way of example. As shown in FIG. 1, the valve body 1 is integrally suspended from an upper portion of a horizontal flow passage 2 on a swing valve shaft 3 centered on a horizontal axis orthogonal to the flow passage 2. In the check valve formed by loosely fitting the top 6 with the seat packing 5 fitted in the arm 4, and by contacting the seat packing 5 to the vertical inner surface of the flow passage 2 so that the seat packing 5 can freely come in and out of contact, A screw hole 7 having a required diameter and a required depth is screwed from the water inlet side, a small hole 8 is formed through the screw hole 7, and a communication small hole 9 is formed through the bottom of the screw hole 7. The packing 10 is embedded and the fixing screw 11 is screwed in, and a large diameter portion 12 having a required large diameter and a required depth which communicates with the small hole 8 is bored in the shaft center of the fixing screw 11. A communication small hole 13 is formed at the bottom of 12 and pressed against a spring 14 with a required mounting load set inside. The swingable valve shaft 3 is housed in the arm suspension 16 that is detachably fitted to the upper portion of the valve body 1, and the swinging valve shaft 3 is engaged with the recessed groove 17 that is opened on the left and right upper surfaces (front and rear in FIG. 1) of the arm suspension 16. It is detachably fitted. It should be noted that the left and right sides of the arm 4 of the swing valve shaft 3 in FIG. 1 have the same weight.
【図１】本考案の逆止弁ａの縦断面図である。FIG. 1 is a vertical sectional view of a check valve a of the present invention.
【図２】逆止弁ａの使用状態を示す模式図である。FIG. 2 is a schematic diagram showing a use state of a check valve a.
１ 弁本体 ２ 流通路 ３ 揺動弁軸 ４ アーム ５ シートパッキング ６ コマ ７ ネジ孔 ８ 小孔 ９ 連通小孔 １０ パッキング １１ 固定ネジ １２ 大径部 １３ 連通小孔 １４ スブリング １５ ボール １６ アーム吊 １７ 陥没溝 ａ 逆止弁 Ｍ メータ 1 valve body 2 flow passage 3 rocking valve shaft 4 arm 5 seat packing 6 frame 7 screw hole 8 small hole 9 communication small hole 10 packing 11 fixing screw 12 large diameter part 13 communication small hole 14 subring 15 ball 16 arm suspension 17 sinking Groove a Check valve M meter
Claims (2)
交する水平軸を中心とする揺動弁軸に一体に垂下される
アームには、シートパッキングを嵌装したコマを遊嵌
し、流通路の垂直内面の着座面にシートパッキングを接
離自在に応設して成る逆止弁において、前記コマの軸心
に小孔を貫設するとともに入水側小孔を大径部に連通
し、該大径部にボールを収納し、該ボールを小孔側にス
プリングで水密的に所要圧で圧着して成る逆止弁。1. An upper piece of a flow passage of a valve body, which is integrally suspended from a swing valve shaft having a horizontal axis orthogonal to the flow passage as a center, has a top fitted with a seat packing loosely fitted thereto. In a check valve in which a seat packing is attached to the seating surface on the vertical inner surface of the flow passage so that it can be moved in and out, a small hole is formed through the axial center of the top and a small hole on the water inlet side is formed in a large diameter portion. A check valve which is in communication with each other, accommodates a ball in the large diameter portion, and presses the ball in a small hole side in a watertight manner with a spring at a required pressure.
溝に係脱自在に嵌着して成る請求項１の逆止弁。2. The check valve according to claim 1, wherein the oscillating valve shaft is detachably fitted into a recessed groove formed in an upper portion of the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6880891U JPH0527449U (en) | 1991-08-02 | 1991-08-02 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6880891U JPH0527449U (en) | 1991-08-02 | 1991-08-02 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0527449U true JPH0527449U (en) | 1993-04-09 |
Family
ID=13384385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6880891U Pending JPH0527449U (en) | 1991-08-02 | 1991-08-02 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0527449U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6059877B2 (en) * | 1980-07-17 | 1985-12-27 | 大日本インキ化学工業株式会社 | Method for manufacturing clam shell-like Go stones |
| JPS6111569U (en) * | 1984-06-26 | 1986-01-23 | 裕 直井 | Beverage containers with heat retention properties |
-
1991
- 1991-08-02 JP JP6880891U patent/JPH0527449U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6059877B2 (en) * | 1980-07-17 | 1985-12-27 | 大日本インキ化学工業株式会社 | Method for manufacturing clam shell-like Go stones |
| JPS6111569U (en) * | 1984-06-26 | 1986-01-23 | 裕 直井 | Beverage containers with heat retention properties |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0527449U (en) | Check valve | |
| JPS6082598U (en) | Air blower work machine | |
| EP1427344A4 (en) | Cryogenic system | |
| CN213450871U (en) | Vertical water pump | |
| US5397256A (en) | Flushing apparatus for boat motor | |
| CN112815137A (en) | Protection device for valve convenient to installation is dismantled | |
| JP2524688Y2 (en) | Hydraulic cylinder device with residual pressure holding valve device | |
| CN210440783U (en) | Fixing structure of hydraulic engineering pipeline valve | |
| JPH0536568Y2 (en) | ||
| JPS62496U (en) | ||
| JPH03199U (en) | ||
| JPH03580Y2 (en) | ||
| JPS5826605A (en) | Ball caster | |
| JPH0337288U (en) | ||
| JPS6383471U (en) | ||
| JPH049660U (en) | ||
| JPS59166883U (en) | Foam rubber stopper cleaning device | |
| JPS5990668U (en) | non-return valve | |
| JPH0353699U (en) | ||
| JPH02113077U (en) | ||
| JPS6428471U (en) | ||
| JPH03100596U (en) | ||
| JPS5894889U (en) | non-return valve | |
| JPH0317301U (en) | ||
| RU99108224A (en) | VALVE SHUT-OFF |