JP2761739B2 - Waiting type automatic on-off valve - Google Patents
Waiting type automatic on-off valveInfo
- Publication number
- JP2761739B2 JP2761739B2 JP28166388A JP28166388A JP2761739B2 JP 2761739 B2 JP2761739 B2 JP 2761739B2 JP 28166388 A JP28166388 A JP 28166388A JP 28166388 A JP28166388 A JP 28166388A JP 2761739 B2 JP2761739 B2 JP 2761739B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- inner pipe
- pipe
- fire
- open
- 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 - Fee Related
Links
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Description
【発明の詳細な説明】 a. 産業上の利用分野 本発明は、待期式自動開閉弁に関する。The present invention relates to a waiting type automatic on-off valve.
b. 従来の技術 火災の発生に際して消火栓を使用する場合、収納ボッ
クスに収納されたホースを引き出し、消火員のひとりが
放水用ノズルを持ち、別の消火員が消火栓バルブを開い
て通水を行ない、消火作業を行なっている。したがって
消火員がひとりしかいない場合には、消火栓の水圧が高
いので、放水用ノズルを持ちながら消火栓バルブを開く
ことは事実上不可能である。b. Conventional technology When using a fire hydrant in the event of a fire, pull out the hose stored in the storage box, one of the fire extinguishers has a nozzle for water discharge, and another fire extinguisher opens the fire hydrant valve to conduct water flow. Fire extinguishing work. Therefore, when there is only one fire extinguisher, the water pressure of the fire hydrant is high, and it is virtually impossible to open the fire hydrant valve while holding the water discharge nozzle.
そこで、ひとりの消火員でも容易に操作を行なうこと
ができるようにした第３図のような消火栓バルブ（実願
昭59−28400号）を先に出願した。Therefore, a fire hydrant valve as shown in FIG. 3 (Japanese Utility Model Application No. 59-28400) was filed in advance so that even a single fire extinguisher could operate easily.
この消火栓バルブは、主に屋内用の消火栓に用いられ
るもので、給水口100に回動可能に嵌合した直角型の外
管101に、円筒状の内管102を摺動可能に嵌入し、外管10
1と内管102との両者間にはＯリング103,104を配装して
水密性を得るようにしている。一方、内管102の先端に
は、消防用ホース105を取付け、この消防用ホース105の
先端にノズル（図示せず）を装着している。This fire hydrant valve is mainly used for indoor fire hydrants, and a cylindrical inner pipe 102 is slidably fitted into a right-angled outer pipe 101 rotatably fitted to a water supply port 100, Outer tube 10
O-rings 103 and 104 are provided between both the inner tube 1 and the inner tube 102 to obtain watertightness. On the other hand, a fire hose 105 is attached to the tip of the inner pipe 102, and a nozzle (not shown) is attached to the tip of the fire hose 105.
そして、火災に際しては、消火栓の元栓を開け、ノズ
ルを持って火災現場に行き、消防用ホース105を引く
と、内管102が摺動して、外管101と内管102が連通す
る。これによって、外管101から内管102を通って水が流
れ、放水が開始される。Then, in the event of a fire, open the main plug of the fire hydrant, go to the fire site with the nozzle, pull the fire hose 105, the inner pipe 102 slides, and the outer pipe 101 and the inner pipe 102 communicate. As a result, water flows from the outer pipe 101 through the inner pipe 102, and water discharge is started.
このような消火栓バルブによると、ひとりの消火員に
よって操作を行なうことはできるが、外管101内の水圧
が内管102側面に作用し、内径40mmのホースに用いるも
ので、通常、水圧が4kg/cm2のとき、引抜き力が12kg必
要となり、水圧が75kg/cm2のとき、引抜き力が20kg必要
となる。このため、バルブの開放時にかなりの力で内管
102を引かなければならない。したがって、操作に不慣
れな人、あるいは女性等の非力な人が操作をして、消防
用ホース105を引いたつもりでいたところが、実際に
は、内管102が摺動せず放水が開始されないことがあ
り、再度、消防用ホース105を引くなどの操作が必要と
なる。According to such a fire hydrant valve, the operation can be performed by one fire extinguisher, but the water pressure in the outer pipe 101 acts on the side of the inner pipe 102 and is used for a hose having an inner diameter of 40 mm. / when cm 2, pull-out force is required 12kg, when the water pressure of 75kg / cm 2, pull-out force is required 20kg. For this reason, when opening the valve,
I have to subtract 102. Therefore, a person who was unfamiliar with the operation or a weak person such as a woman operated and intended to pull the fire hose 105, but actually the inner pipe 102 did not slide and water discharge did not start Therefore, an operation such as pulling the fire hose 105 again is necessary.
そこで、内管に小孔を設け、かつ内管に弁体を設ける
ようにした消火栓用バルブ（特願昭60−168405号公報）
が知られている。Therefore, a fire hydrant valve in which a small hole is provided in the inner pipe and a valve element is provided in the inner pipe (Japanese Patent Application No. 60-168405).
It has been known.
この従来技術によると、小孔を通して内管に水が注入
され、内管内を水が充満すると、その水圧により内管が
摺動し、弁を開放するものである。According to this conventional technique, water is injected into the inner pipe through a small hole, and when the inside of the inner pipe is filled with water, the water pressure causes the inner pipe to slide and open the valve.
c. 発明が解決しようとする課題 しかしながら、内管内の容積が限られているので、短
時間で内管内が満たされ、現場に到達する前に放水が開
始されてしまうおそれがあった。c. Problems to be Solved by the Invention However, since the volume inside the inner tube is limited, there is a possibility that the inside of the inner tube is filled in a short time and water discharge is started before reaching the site.
したがって、屋外の消火栓では、長い消防用ホースを
何本も継いで使用するため、現場に到達するまでの時間
を確保することが困難であった。Therefore, in an outdoor fire hydrant, since many long fire hoses are connected and used, it has been difficult to secure time until the fire hydrant reaches the site.
本発明は上記課題を解決し、一定時間経過後に流体の
供給を行ない得る待期式自動開閉弁を提供することを目
的とする。An object of the present invention is to solve the above-mentioned problem and to provide a waiting type automatic on-off valve capable of supplying a fluid after a lapse of a predetermined time.
d. 課題を解決するための手段 本発明は上記課題を解決するため、互いに摺動可能に
嵌合する外管と内管の各々に開閉弁を内装し、これら開
閉弁のうち上流側に設けられた開閉弁に漏水孔を形成
し、これら両開閉弁で仕切られた貯留室に導入される流
体の圧力によって上記外管と内管を互いに離間する方向
に摺動させると共に、該外管と内管の摺動動作によって
上記両開閉弁を開放させる手段を内装し、かつ該開放手
段を上流側の開閉弁に対して下流側の開閉弁を遅れて開
放させるように調整したことにある。d. Means for Solving the Problems In order to solve the above-mentioned problems, the present invention includes an on-off valve provided in each of an outer pipe and an inner pipe slidably fitted to each other, and is provided on the upstream side of these on-off valves. A water leakage hole is formed in the opened / closed valve, and the outer pipe and the inner pipe are slid in a direction away from each other by the pressure of the fluid introduced into the storage chamber partitioned by the two on / off valves, and the outer pipe and the inner pipe are separated from each other. A means for opening both of the on-off valves by sliding operation of the inner pipe is provided, and the opening means is adjusted so that the on-off valve on the downstream side is opened later than the on-off valve on the upstream side.
e. 作用 流体を供給する元栓を開放させると、上流側の開閉弁
の漏水孔を通して次第に貯留室に流体が貯えられる。貯
留室内の流体が一杯になると、外管と内管が徐々に摺動
し貯留室の拡大を図る。そして、外管と内管が一定距離
離れると、上流側の開閉弁が開放し、貯留室を元栓側と
直結させる。そして、流体圧が外管と内管の摺動を速
め、さらに離間させる。こうして、下流側の開閉弁が開
放し、流体を供給する。e. Action When the main valve that supplies the fluid is opened, the fluid is gradually stored in the storage chamber through the leak hole of the upstream on-off valve. When the fluid in the storage chamber becomes full, the outer pipe and the inner pipe slide gradually to expand the storage chamber. Then, when the outer pipe and the inner pipe are separated by a certain distance, the on-off valve on the upstream side is opened, and the storage chamber is directly connected to the main plug side. And, the fluid pressure accelerates the sliding between the outer tube and the inner tube and further separates them. In this way, the downstream on-off valve is opened to supply the fluid.
f. 実施例 以下、本発明の一実施例を図面を参照しながら詳細に
説明する。f. Example Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
第１図は待期式自動開閉弁を示す断面図である。同図
において、待期式自動開閉弁は元栓側に連結された外管
１とノズル側に連結された内管２とで構成されている。
外管１は一端の継手部３を介して直接元栓側の給水口
（図示せず）に連結してもよく、あるいはホースを介し
て連結してもよい。内管２は一端の継手部４を介してホ
ースに連結され、複数本のホースを介してノズル（図示
せず）に連結されている。FIG. 1 is a sectional view showing a waiting type automatic on-off valve. In FIG. 1, the waiting type automatic on-off valve includes an outer tube 1 connected to the main plug side and an inner tube 2 connected to the nozzle side.
The outer tube 1 may be directly connected to a water supply port (not shown) on the main plug side via a joint portion 3 at one end, or may be connected via a hose. The inner tube 2 is connected to a hose via a joint 4 at one end, and connected to a nozzle (not shown) via a plurality of hoses.
外管１および内管２には各々開閉弁5,6が内装されて
おり、元栓側からの給水を一旦遮断すると共に、両開閉
弁5,6との間に貯留室７を形成している。外管１に設け
られた開閉弁５はバタフライ弁を使用しており、弁体８
には漏水用の漏水孔９が穿設されている。この弁体８に
は、一端を内管２に連結したゴム等の弾性状紐10が連結
されている。Opening / closing valves 5 and 6 are provided inside the outer pipe 1 and the inner pipe 2, respectively, to temporarily shut off the supply of water from the main cock side, and to form a storage chamber 7 between the opening and closing valves 5 and 6. . The on-off valve 5 provided on the outer pipe 1 uses a butterfly valve, and the valve body 8
Is provided with a water leakage hole 9 for water leakage. An elastic cord 10 such as rubber having one end connected to the inner tube 2 is connected to the valve body 8.
内管２に設けられた開閉弁６はゴム等の弾性体で形成
された弁体11と弁座11aとで構成されており、弁体11の
後部には連結ロッド12が設けられ、前部には弁体11復帰
用の取手13が設けられている。連結ロッド12は内管２内
面に設けられた支持環14の軸線上を摺動自在に支持され
ており、かつ後端のリング部12aと外管１内面に設けら
れた支持環15とを鎖16を介して連結されている。支持環
14,15は大小のリングを放射状のリブで連結したもの
で、外側の大径リングをそれぞれ外管１及び内管２の内
周面に固定したものである。上記鎖16は連結ロッド12の
リング部12aと支持環15の軸線上に固定された固定ロッ
ド17のリング部17aに余裕を持たせて連結されている。
上記弾性状紐10と鎖16との関係は、外管１と内管２が離
間する方向に摺動して、所定幅になると弾性状紐10が張
って来て開閉弁５を開放させる長さに定めてある。外管
１と内管２の摺動幅が設定幅になると鎖16が張って開閉
弁６が開放するようにしている。The on-off valve 6 provided in the inner pipe 2 is composed of a valve body 11 formed of an elastic body such as rubber and a valve seat 11a, and a connecting rod 12 is provided at a rear part of the valve body 11, and a front part is provided. Is provided with a handle 13 for returning the valve body 11. The connecting rod 12 is slidably supported on the axis of a support ring 14 provided on the inner surface of the inner tube 2, and has a ring 12 a at the rear end and a support ring 15 provided on the inner surface of the outer tube 1. Connected via 16. Support ring
Reference numerals 14 and 15 denote large and small rings connected by radial ribs. The outer large rings are fixed to the inner peripheral surfaces of the outer tube 1 and the inner tube 2 respectively. The chain 16 is connected to the ring portion 12a of the connecting rod 12 and the ring portion 17a of the fixed rod 17 fixed on the axis of the support ring 15 with a margin.
The relationship between the elastic string 10 and the chain 16 is such that the outer pipe 1 and the inner pipe 2 slide in the direction in which they are separated from each other, and when a predetermined width is reached, the elastic string 10 is stretched to open the on-off valve 5. Stipulated. When the sliding width between the outer pipe 1 and the inner pipe 2 reaches the set width, the chain 16 is stretched and the on-off valve 6 is opened.
次に上記待期式自動開閉弁の作用を説明する。 Next, the operation of the waiting type automatic on-off valve will be described.
火災に際して、消火栓の元栓を開け、ノズルを持って
現場に直行する。元栓の開放によって開閉弁５のところ
まで水が到達し、遮断される。開閉弁５まで来た水は開
閉弁５の漏水孔９を通して貯留室７に流入する。そし
て、一定時間経過後貯留室７が満水になると外管１に対
して内管２が摺動して互いに離間する方向に拡がる。こ
れにより貯留室７は拡大しながら満水状態が継続する。
次に、弾性状紐10が張って来て開閉弁５を開放し、貯留
室７と元栓側を直結させる。そして、さらに内管２が摺
動すると、今度は鎖16が張って開閉弁６を開放させる。
こうして、放水が開始される。In case of fire, open the fire hydrant and go straight to the site with the nozzle. The water reaches the on-off valve 5 by opening the main cock and is shut off. The water that has reached the on-off valve 5 flows into the storage chamber 7 through the water leakage hole 9 of the on-off valve 5. Then, when the storage chamber 7 becomes full after a certain period of time, the inner pipe 2 slides with respect to the outer pipe 1 and spreads in a direction away from each other. As a result, the storage room 7 continues to be filled with water while expanding.
Next, the elastic cord 10 is stretched to open the on-off valve 5, and the storage chamber 7 is directly connected to the main plug side. Then, when the inner pipe 2 slides further, the chain 16 is stretched this time to open the on-off valve 6.
Thus, water discharge is started.
g. 発明の効果 以上述べたように、本発明による待期式自動開閉弁
は、元栓の開放から一定時間経過するまで放水を延期さ
せることができるので、屋外の消火栓のようにノズルを
持って現場に到達までに距離があるような場合に、充分
な待期時間を確保することができる。また、待期式自動
開閉弁は、複数のホース間ごとに介在させることにより
待期時間をさらに延長させることができる。g. Effect of the Invention As described above, the waiting type automatic on-off valve according to the present invention can postpone water discharge until a certain period of time has passed since the opening of the main cock, so that the nozzle has a nozzle like an outdoor fire hydrant. In the case where there is a distance to reach the site, a sufficient waiting time can be secured. In addition, the waiting time type automatic on-off valve can further extend the waiting time by interposing the hose between a plurality of hoses.
【図面の簡単な説明】 第１図および第２図は本発明の待期式自動開閉弁の一実
施例を示す断面図、第３図は従来の消火栓バルブを示す
断面図である。 １……外管、２……内管、 3,4……継手部、5,6……開閉弁、 ７……貯留室、8,11……弁体、 ９……漏水孔、10……弾性状紐、 12……連結ロッド、14,15……支持環、 16……鎖。BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 are cross-sectional views showing an embodiment of a waiting type automatic on-off valve according to the present invention, and FIG. 3 is a cross-sectional view showing a conventional fire hydrant valve. 1 ... Outer pipe, 2 ... Inner pipe, 3,4 ... Coupling part, 5,6 ... On-off valve, 7 ... Reservoir, 8,11 ... Valve, 9 ... Leakage hole, 10 ... ... elastic string, 12 ... connecting rod, 14, 15 ... support ring, 16 ... chain.
Claims (1)
々に開閉弁を内装し、これら開閉弁のうち上流側に設け
られた開閉弁に漏水孔を形成し、これら両開閉弁で仕切
られた貯留室に導入される流体の圧力によって上記外管
と内管を互いに離間する方向に摺動させると共に、該外
管と内管の摺動動作によって上記両開閉弁を開放させる
手段を内装し、かつ該開放手段を上流側の開閉弁に対し
て下流側の開閉弁を遅れて開放させるように調整したこ
とを特徴とする待期式自動開閉弁。An open / close valve is provided in each of an outer pipe and an inner pipe which are slidably fitted to each other, and a water leak hole is formed in an open / close valve provided on an upstream side of the open / close valves. The outer pipe and the inner pipe are slid in the direction away from each other by the pressure of the fluid introduced into the storage chamber partitioned by the valve, and the two on-off valves are opened by the sliding operation of the outer pipe and the inner pipe. A waiting-time automatic on-off valve, characterized in that the opening means is provided therein, and the opening means is adjusted to open the downstream on-off valve later than the upstream on-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28166388A JP2761739B2 (en) | 1988-11-08 | 1988-11-08 | Waiting type automatic on-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28166388A JP2761739B2 (en) | 1988-11-08 | 1988-11-08 | Waiting type automatic on-off valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02126866A JPH02126866A (en) | 1990-05-15 |
| JP2761739B2 true JP2761739B2 (en) | 1998-06-04 |
Family
ID=17642243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28166388A Expired - Fee Related JP2761739B2 (en) | 1988-11-08 | 1988-11-08 | Waiting type automatic on-off valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2761739B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100972144B1 (en) * | 2008-04-18 | 2010-07-26 | 주식회사 정원주철 | rotation hydrant |
-
1988
- 1988-11-08 JP JP28166388A patent/JP2761739B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02126866A (en) | 1990-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |