JP2005143773A - Valve for fire hydrant - Google Patents

Valve for fire hydrant Download PDF

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Publication number
JP2005143773A
JP2005143773A JP2003384497A JP2003384497A JP2005143773A JP 2005143773 A JP2005143773 A JP 2005143773A JP 2003384497 A JP2003384497 A JP 2003384497A JP 2003384497 A JP2003384497 A JP 2003384497A JP 2005143773 A JP2005143773 A JP 2005143773A
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valve
rod
fire hydrant
compression spring
valve body
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JP4467285B2 (en
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Kenji Watabe
健治 渡部
Nobuyuki Tsutsui
信行 筒井
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Yokoi Manufacturing Co Ltd
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Yokoi Manufacturing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To realize space saving, easy maintenance by reducing the number of parts and long durability without change of compression power of a built-in compression spring by incorporating a pressure adjusting mechanism into a valve for a fire hydrant. <P>SOLUTION: The valve for fire hydrant is constituted that valve body 7 and a valve rod 9 which are mounted on and removed from a valve seat 6 are separately formed, a pressure adjusting rod 10 is hanged downward integrally from the above valve body 7, a piston member 12 which has the same surface area of the above valve body 7 and is inserted with free vertical movement in a cylindrical body 11 disposed at a lower part of a valve box is disposed integrally at the lower end of the pressure adjusting rod 10, and a compression spring 13 which presses the above valve body 7 upwardly through the pressure adjusting rod 10 is disposed at the bottom side of the above piston member 12 so that pressure of the water flowing out from a fluid outlet 4 is adjusted by adjusting the upward pressure of the compression spring 13. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、バルブ本体内に圧力調整機構を備えた消火栓用バルブに関するものである。   The present invention relates to a fire hydrant valve provided with a pressure adjusting mechanism in a valve body.

図４は、従来技術の一例を示すものであり、当該消火栓装置１０９は、給水装置（図示略）と、給水装置から複数階ある建物の各階に送水する１本の送水管１０３と、自動減圧弁１１０と、消防隊用消火栓１０５と、消火ホース１０６を接続した一般用消火栓１０７とを１つの筐体１０８内に収納することにより形成されている。即ち、送水管１０３から消防隊用消火栓１０５および一般用消火栓１０７にそれぞれ接続される１対の給水管１０４ａ、１０４ｂとが分岐されており、前記給水管１０４ａと一般用消火栓１０７との間には、給水圧力を所定値に自動的に調整する自動減圧弁１１０が設けられている。
（例えば、特許文献１参照）。
ところが、従来の消火栓装置１０９では、一般用消火栓１０７に圧力調整機構を備えていないので、自動減圧弁１１０を設けているために、消火栓装置１０９が大型化すると共に製造コストが上昇するという問題があった。 FIG. 4 shows an example of the prior art. The fire hydrant device 109 includes a water supply device (not shown), a single water supply pipe 103 for supplying water from the water supply device to each floor of a building having a plurality of floors, and automatic decompression. The valve 110, the fire hydrant 105 for fire brigade, and the general fire hydrant 107 connected to the fire hose 106 are housed in one housing 108. That is, a pair of water supply pipes 104a and 104b connected to the fire brigade hydrant 105 and the general fire hydrant 107 are branched from the water supply pipe 103, and between the water supply pipe 104a and the general fire hydrant 107 is branched. An automatic pressure reducing valve 110 is provided for automatically adjusting the feed water pressure to a predetermined value.
(For example, refer to Patent Document 1).
However, in the conventional fire hydrant device 109, since the general fire hydrant 107 is not provided with a pressure adjustment mechanism, since the automatic pressure reducing valve 110 is provided, there is a problem that the fire hydrant device 109 is enlarged and the manufacturing cost is increased. there were.

特開２００３−１９９８４１号公報JP 2003-199841 A

本発明は、上記した従来の実情に鑑みてなされたものであり、消火栓用バルブに圧力調整機構を組み込むことにより省スペース化と部品点数の削減ができてメンテナンスが行い易く、更に、内部に組み込まれた圧縮スプリングの圧縮力が変化を起こさず長期間の使用に耐えることができるようにした消火栓用バルブを提供することを目的とするものである。   The present invention has been made in view of the above-described conventional situation, and by incorporating a pressure adjustment mechanism into a fire hydrant valve, it is possible to save space, reduce the number of parts, facilitate maintenance, and further incorporate it inside. It is an object of the present invention to provide a fire hydrant valve that can withstand long-term use without causing a change in the compression force of the compressed spring.

本発明は、上記課題を解決するために提案されたものであって、請求項１に記載の発明は、弁座に当、離座する弁体と弁ロッドとが別体に形成され、前記弁体には下側に向けて圧力調整用ロッドが一体に垂下されると共に、この圧力調整用ロッドの下端に、弁箱の下方に設けた筒状体内へ上下動可能に挿着した前記弁体と同一の表面積を有するピストン部材が一体に設けられ、更に、前記ピストン部材の下側に、圧力調整用ロッドを介して前記弁体を上方へ押圧する圧縮スプリングが配設されていて、この圧縮スプリングの上向きの押圧力を調整することにより、流体出口より流出する水の水圧を調整するように構成したものである。   The present invention has been proposed in order to solve the above-mentioned problems, and the invention according to claim 1 is characterized in that a valve body that contacts and separates from a valve seat and a valve rod are formed separately, and The valve body is provided with a pressure adjusting rod that hangs down downward, and is attached to the lower end of the pressure adjusting rod so as to be vertically movable into a cylindrical body provided below the valve box. A piston member having the same surface area as the body is integrally provided, and a compression spring that presses the valve body upward via a pressure adjusting rod is disposed below the piston member. By adjusting the upward pressing force of the compression spring, the water pressure of water flowing out from the fluid outlet is adjusted.

請求項２に記載の発明は、前記圧縮スプリングの上向きの押圧力を調整する部材は、前記筒状体の下端の蓋部に形成した螺子部と、この螺子部に螺合して上下移動する調整ボルトと、前記筒状体内の下端に配設されたスプリング受け板とで構成されているものである。   According to a second aspect of the present invention, the member for adjusting the upward pressing force of the compression spring is a screw part formed on the lid part at the lower end of the cylindrical body, and is screwed into the screw part to move up and down. The adjusting bolt and the spring receiving plate disposed at the lower end of the cylindrical body are configured.

請求項３に記載の発明は、前記圧縮スプリングの上向きの押圧力を調整する部材は、前記弁ロッドと一体的に下方へ向けて筒状体の下方部まで延設され、弁体及び圧力調整用ロッド並びにピストン部材を貫通して前記弁ロッドと共に上下動する垂設ロッドと、この垂設ロッドの下端に上下移動可能に配設されたスプリング受け板と、前記垂設ロッドの下端に設けられた螺子部に螺合する調整ナットとで構成されているものである。   According to a third aspect of the present invention, the member for adjusting the upward pressing force of the compression spring is extended downward to the lower part of the cylindrical body integrally with the valve rod, and the valve body and pressure adjustment A vertical rod that moves up and down together with the valve rod through the piston rod and the piston member, a spring receiving plate disposed at the lower end of the vertical rod so as to be vertically movable, and a lower end of the vertical rod. And an adjusting nut that is screwed into the screw portion.

請求項１に記載の発明によれば、消火栓用バルブに圧力調整機構を組み込み、当該圧力調整機構を形成する圧縮スプリングの弾性力を調整することにより、流体出口側の放水圧力Ｐ2を常に自動的に設定値に保持することができる。また、消火栓装置の省スペース化と部品点数の削減を図ることができてメンテナンスが行い易くなる。 According to the first aspect of the present invention, the water discharge pressure P 2 on the fluid outlet side is always automatically adjusted by incorporating a pressure adjustment mechanism into the fire hydrant valve and adjusting the elastic force of the compression spring forming the pressure adjustment mechanism. Can be kept at the set value. In addition, it is possible to save space and reduce the number of parts of the fire hydrant device, and it is easy to perform maintenance.

請求項２に記載の発明によれば、圧縮スプリングの圧縮力を調整するボルト部材とナットとが弁箱の外側に有るので、外側からナットを回してボルト部材を螺進螺退して、圧縮スプリングの圧縮力を調整することができる。   According to the second aspect of the present invention, since the bolt member and the nut for adjusting the compressive force of the compression spring are outside the valve box, the nut is turned from the outside and the bolt member is screwed back and screwed. The compression force of the spring can be adjusted.

請求項３に記載の発明によれば、螺子部と調整ナットを内部に組み込んでいるので、この螺子部とナット部材が外側に露出せずに見栄えをよくすることができるうえ、内部に組み込まれた圧縮スプリングの圧縮力が変化することがなく長期間の使用に耐えることができる。   According to the third aspect of the present invention, since the screw portion and the adjusting nut are incorporated in the inside, the appearance of the screw portion and the nut member can be improved without being exposed to the outside, and the screw portion and the adjusting nut are incorporated in the inside. In addition, the compression force of the compression spring does not change and can withstand long-term use.

以下、本発明に係る消火栓用バルブの実施の形態について、図を参照しつつ説明する。
図１は本発明の第１実施形態の消火栓用バルブを示す部分断面正面図である。
図１において、１はボデー、２は流体入口、３は入口側水通路、４は流体出口、５は出口側水通路、６は弁座、７は弁体、８はハンドル、９はロッド、１０は圧力調整用ロッド、１１は筒状体、１２はピストン部材、１３は圧縮スプリング、１４ａはねじ孔、１４は圧力調整用ボルト部材、１５ａは弛み止めナット、１６はスプリング受け板である。 Hereinafter, embodiments of a fire hydrant valve according to the present invention will be described with reference to the drawings.
FIG. 1 is a partial sectional front view showing a fire hydrant valve according to a first embodiment of the present invention.
In FIG. 1, 1 is a body, 2 is a fluid inlet, 3 is an inlet side water passage, 4 is a fluid outlet, 5 is an outlet side water passage, 6 is a valve seat, 7 is a valve body, 8 is a handle, 9 is a rod, 10 is a pressure adjusting rod, 11 is a cylindrical body, 12 is a piston member, 13 is a compression spring, 14a is a screw hole, 14 is a pressure adjusting bolt member, 15a is a locking nut, and 16 is a spring receiving plate.

この実施形態の消火栓用バルブの構造は、ボデー１の一方側に流体入口２から通じる入口側水通路３が設けられ、他方側に流体出口４に通じる出口側水通路５が設けられている。入口側水通路３と流体出口４の中途部に弁座６が設けられ、この弁座６の開口部６ａが弁体７で開閉されるようになっている。
弁体７の上部側には弁体７と別体にロッド９が設けられ、その上端にロッド９を上下移動するためのハンドル８が設けられている。即ち、弁体７の上面側に筒状部７ａが突設され、この筒状部７ａ内にロッド９の下端が上下移動可能に嵌め入れられている。 In the fire hydrant valve structure of this embodiment, an inlet-side water passage 3 communicating with the fluid inlet 2 is provided on one side of the body 1 and an outlet-side water passage 5 communicating with the fluid outlet 4 is provided on the other side. A valve seat 6 is provided in the middle of the inlet side water passage 3 and the fluid outlet 4, and an opening 6 a of the valve seat 6 is opened and closed by a valve body 7.
A rod 9 is provided separately from the valve body 7 on the upper side of the valve body 7, and a handle 8 for moving the rod 9 up and down is provided at the upper end thereof. That is, the cylindrical part 7a is projected on the upper surface side of the valve body 7, and the lower end of the rod 9 is fitted into the cylindrical part 7a so as to be vertically movable.

弁体７の下面側には、下方に向けて圧力調整用ロッド１０が垂設されていて、この圧力調整用ロッド１０はボデー１の下側に設けられた筒状体１１内に入り込んでいる。この筒状体１１内には、上下摺動可能にピストン部材１２が配設されており、当該ピストン部材１２へ前記圧力調整用ロッド１０の下端部が固定されている。このピストン部材１２の表面積は弁体７と同じ表面積になっている。又、筒状体１１の上端は離壁１１ａが設けられ、この離壁１１ａに小孔１１ｂが穿設されている。   On the lower surface side of the valve body 7, a pressure adjusting rod 10 is suspended downward, and this pressure adjusting rod 10 enters a cylindrical body 11 provided on the lower side of the body 1. . A piston member 12 is disposed in the cylindrical body 11 so as to be slidable up and down, and a lower end portion of the pressure adjusting rod 10 is fixed to the piston member 12. The surface area of the piston member 12 is the same as that of the valve body 7. Further, a separation wall 11a is provided at the upper end of the cylindrical body 11, and a small hole 11b is formed in the separation wall 11a.

筒状体１１内のピストン部材１２の下側には、ピストン部材１２と圧力調整用ロッド１０を介して弁体７を上方へ押圧する力を調整する圧縮スプリング１３が配設されており、また、筒状体１１の内部下端側には、スプリング受け板１６が配設されている。このスプリング受け板１６の下面には、筒状体１１の下端の蓋部１１ｃに形成したねじ孔１４ａに螺挿した圧力調整用ボルト部材１４が設けられている。この圧力調整用ボルト部材１４には、弛み止めナット１５ａが螺合されており、前記圧力調整用ボルト部材１４を回転させることによって、圧力調整用ボルト部材１４を上下移動させ、スプリング受け板１６を筒状体１１内で上下移動して圧縮スプリング１３の上向きの押圧力を調整するように構成されている。   A compression spring 13 for adjusting a force for pressing the valve body 7 upward via the piston member 12 and the pressure adjusting rod 10 is disposed below the piston member 12 in the cylindrical body 11. A spring receiving plate 16 is disposed on the inner lower end side of the cylindrical body 11. A pressure adjusting bolt member 14 screwed into a screw hole 14 a formed in the lid portion 11 c at the lower end of the cylindrical body 11 is provided on the lower surface of the spring receiving plate 16. The pressure adjusting bolt member 14 is screwed with a locking nut 15a. By rotating the pressure adjusting bolt member 14, the pressure adjusting bolt member 14 is moved up and down, and the spring receiving plate 16 is moved. It is configured to adjust the upward pressing force of the compression spring 13 by moving up and down within the cylindrical body 11.

ここで、弁体７とピストン部材１２の表面積は同一であり、この表面積をＳ1とし、圧縮スプリング１３の弾力をｆとし、入口側（送水元側）の水の圧力をＰ1とし、出口側（送水先側）の水の圧力をＰ2とし、圧力調整用ロッド１０にかかる下向きの力をＦDとし、圧力調整用ロッド１０にかかる上向きの力をＦUとすると、
ＦD＝Ｐ2Ｓ1＋Ｐ1Ｓ1
ＦU＝ｆ＋Ｐ1Ｓ1
となる。
圧力調整用ロッド１０がバランスしたときには、
ＦD＝ＦUとなるため、
Ｐ2Ｓ1＋Ｐ1Ｓ1−（ｆ＋Ｐ1Ｓ1）＝０となる。
従って、
Ｐ2Ｓ1＝ｆ
となって、圧縮スプリング１３の弾力ｆを調整することにより、流体出口（送水先側）４の水の圧力Ｐ2は常に圧縮スプリング１３の弾力をｆに保持できることになる。 Here, the surface area of the valve body 7 and the piston member 12 is the same, the surface area and S 1, the elastic force of the compression spring 13 is f, the pressure of the water in the inlet side (water supply source side) and P 1, the outlet the pressure of the water side (water destination side) and P 2, the downward force exerted on the pressure regulating rod 10 and F D, when the upward force exerted on the pressure regulating rod 10 and F U,
F D = P 2 S 1 + P 1 S 1
F U = f + P 1 S 1
It becomes.
When the pressure adjusting rod 10 is balanced,
Since F D = F U ,
P 2 S 1 + P 1 S 1 − (f + P 1 S 1 ) = 0.
Therefore,
P 2 S 1 = f
Thus, by adjusting the elasticity f of the compression spring 13, the water pressure P 2 at the fluid outlet (water supply side) 4 can always keep the elasticity of the compression spring 13 at f.

このことにより、圧縮スプリング１３の弾力を調整することで、適度な減圧を行うことができることとなる。即ち、圧縮スプリング１３の圧縮力ｆが変わらないと、一定の放水圧に保持されることになる。   Thus, moderate pressure reduction can be performed by adjusting the elasticity of the compression spring 13. That is, if the compression force f of the compression spring 13 does not change, it is held at a constant water discharge pressure.

この実施形態の消火栓用バルブによれば、消火栓用バルブに圧力調整機構を組み込んでいるため、省スペース化と部品点数削減を図ることができてメンテナンスが行い易い。しかも、圧縮スプリング１３の圧縮力を長期間一定値に保つことができる。   According to the fire hydrant valve of this embodiment, since the pressure adjustment mechanism is incorporated in the fire hydrant valve, space can be saved and the number of parts can be reduced, so that maintenance is easy. In addition, the compression force of the compression spring 13 can be kept constant for a long time.

図２は第２実施形態の消火栓用バルブを示す部分断面正面図である。尚、上記した第１実施形態の場合と同一部材、同一箇所には、同一符号を付してその説明を省略する。
この第２実施形態の消火栓用バルブでは、弁ロッド９の下端にこれと一体的に下方へ延びる垂設ロッド１７が形成されており、当該垂設ロッド１７は弁体７、圧力調整用ロッド１０及びピストン部材１２を挿通して、筒状体１１の内部下方まで延設されていて、前記弁ロッド９と一体となって上下方向へ移動する。そして、この垂設ロッド１７の下端に、上下移動可能にスプリング受け板１６が配設されている。このスプリング受け板１６の下面側の垂設ロッド１７の下端には螺子部１７ａが設けられており、この螺子部１７ａに螺合する調整ナット１５が設けられている。筒状体１１の下端には蓋体１８が取りつけ取り外し可能に取りつけられている。 FIG. 2 is a partial cross-sectional front view showing the fire hydrant valve of the second embodiment. In addition, the same member and the same location as the case of above-mentioned 1st Embodiment attach | subject the same code | symbol, and abbreviate | omit the description.
In the fire hydrant valve of the second embodiment, a hanging rod 17 extending downward integrally therewith is formed at the lower end of the valve rod 9, and the hanging rod 17 includes the valve body 7 and the pressure adjusting rod 10. The piston member 12 is inserted into the cylindrical body 11 so as to extend downward to the inside of the cylindrical body 11, and moves up and down integrally with the valve rod 9. A spring receiving plate 16 is disposed at the lower end of the hanging rod 17 so as to be movable up and down. A screw portion 17a is provided at the lower end of the hanging rod 17 on the lower surface side of the spring receiving plate 16, and an adjusting nut 15 that is screwed into the screw portion 17a is provided. A lid 18 is detachably attached to the lower end of the cylindrical body 11.

この第２実施形態の消火栓用バルブによれば、螺子部１７ａと調整ナット１８を内部に組み込んでいるので、この螺子部１７ａとナット部材１８が外側に露出せずに見栄えをよくすることができる。また、弁ロッド９を下方へ移動させてバルブを閉鎖状態に保持しているときには、圧縮スプリング１３は延びた状態（非圧縮）になっている。そして、弁を開放した時、受け板１６が上方へ持ち上げられて圧縮スプリング１３に圧縮力ｆが発生するため、スプリングの圧縮力ｆが長期に渡って一定値に保持される。
尚、第１実施形態で数式を用いて表した内容については、この第２実施形態でも同様なので、その説明を省略する。 According to the fire hydrant valve of the second embodiment, since the screw portion 17a and the adjusting nut 18 are incorporated inside, the screw portion 17a and the nut member 18 can be improved in appearance without being exposed to the outside. . Further, when the valve rod 9 is moved downward to hold the valve in the closed state, the compression spring 13 is in an extended state (non-compressed). When the valve is opened, the receiving plate 16 is lifted upward, and the compression force f is generated in the compression spring 13. Therefore, the compression force f of the spring is held at a constant value for a long time.
Note that the contents expressed by using mathematical formulas in the first embodiment are the same in the second embodiment, and thus the description thereof is omitted.

図３は本発明の消火栓バルブを建物用消火設備に適用した例を示す正面図である。
これは、図３に示すように、給水装置（図示略）から複数階の建物の各階に送水する１本の送水管１９が設けられ、この送水管１９から各階の消防用消火栓２０と本発明の消火栓用バルブからなる一般用消火栓２１とに別々に給水するための２本の給水管２２、２３とが設けられている。 FIG. 3 is a front view showing an example in which the fire hydrant valve of the present invention is applied to a building fire extinguishing equipment.
As shown in FIG. 3, this is provided with a single water pipe 19 for supplying water from a water supply device (not shown) to each floor of a building on a plurality of floors, and from the water pipe 19 to the fire hydrant 20 for each floor and the present invention. There are provided two water supply pipes 22 and 23 for supplying water separately to a general fire hydrant 21 composed of a fire hydrant valve.

このように、本発明の消火栓用バルブを一般用消火栓２１として使用することによって、従来備えられていた自動減圧弁を設ける必要がなく、部品点数を削減することができて、全体の構造を簡略化することができる。
尚、本発明の消火栓用バルブは、一般用消火栓として使用できるだけでなく、消防用消火栓２０と兼用する以外の消火栓装置のバルブとしても利用できることは勿論である。 As described above, by using the fire hydrant valve of the present invention as the general fire hydrant 21, there is no need to provide an automatic pressure reducing valve which has been conventionally provided, the number of parts can be reduced, and the entire structure is simplified. Can be
The fire hydrant valve of the present invention can be used not only as a general fire hydrant but also as a fire hydrant device valve other than the fire hydrant 20.

本発明の第１実施形態の消火栓用バルブを示す部分断面正面図である。It is a fragmentary sectional front view which shows the valve for fire hydrants of 1st Embodiment of this invention. 第２実施形態の消火栓用バルブを示す部分断面正面図である。It is a fragmentary sectional front view which shows the valve for fire hydrants of 2nd Embodiment. 本発明の消火栓バルブを建物用消火設備に適用した例を示す正面図である。It is a front view which shows the example which applied the fire hydrant valve of this invention to the fire extinguishing equipment for buildings. 従来の建物用消火設備を示す正面図である。It is a front view which shows the conventional fire extinguishing equipment for buildings.

符号の説明Explanation of symbols

１はボデー、２は流体入口、３は入口側水通路、４は流体出口、５は出口側水通路、６は弁座、７は弁体、７ａは筒状部。８はハンドル、９はロッド、１０は圧力調整用ロッド、１１は筒状体、１１ａは隔壁、１１ｂは小孔、１１ｃは蓋部、１２はピストン部材、１３は圧縮スプリング、１４ａはねじ孔、１４は圧力調整用ボルト部材、１５ａは弛み止めナット、１５は調整ナット、１６はスプリング受け板、１７は垂設ロッド、１７ａは螺子部、１８は蓋体、１９は送水管、２０は消防用消火栓、２１は一般用消火栓、２２は給水管、２３は給水管。 1 is a body, 2 is a fluid inlet, 3 is an inlet-side water passage, 4 is a fluid outlet, 5 is an outlet-side water passage, 6 is a valve seat, 7 is a valve body, and 7a is a cylindrical portion. 8 is a handle, 9 is a rod, 10 is a pressure adjusting rod, 11 is a cylindrical body, 11a is a partition wall, 11b is a small hole, 11c is a lid, 12 is a piston member, 13 is a compression spring, 14a is a screw hole, 14 is a pressure adjusting bolt member, 15a is a locking nut, 15 is an adjusting nut, 16 is a spring receiving plate, 17 is a hanging rod, 17a is a screw portion, 18 is a lid, 19 is a water pipe, and 20 is for fire fighting. Fire hydrant, 21 is a general fire hydrant, 22 is a water supply pipe, and 23 is a water supply pipe.

Claims (3)

弁座に当、離座する弁体と弁ロッドとが別体に形成され、前記弁体には下側に向けて圧力調整用ロッドが一体に垂下されると共に、この圧力調整用ロッドの下端に、弁箱の下方に設けた筒状体内へ上下動可能に挿着した前記弁体と同一の表面積を有するピストン部材が一体に設けられ、更に、前記ピストン部材の下側に、圧力調整用ロッドを介して前記弁体を上方へ押圧する圧縮スプリングが配設されていて、この圧縮スプリングの上向きの押圧力を調整することにより、流体出口より流出する水の水圧を調整するように構成したことを特徴とする消火栓用バルブ。 The valve body that contacts and separates from the valve seat and the valve rod are formed separately, and a pressure adjusting rod is integrally suspended downward from the valve body, and the lower end of the pressure adjusting rod In addition, a piston member having the same surface area as that of the valve body, which is inserted in a cylindrical body provided below the valve box so as to be movable up and down, is integrally provided, and further, a pressure adjusting member is provided below the piston member. A compression spring that presses the valve body upward through a rod is provided, and the hydraulic pressure of water flowing out from the fluid outlet is adjusted by adjusting the upward pressing force of the compression spring. A fire hydrant valve characterized by that. 前記圧縮スプリングの上向きの押圧力を調整する部材は、前記筒状体の下端の蓋部に形成した螺子部と、この螺子部に螺合して上下移動する調整ボルトと、前記筒状体内の下端に配設されたスプリング受け板とで構成されている請求項１に記載の消火栓用バルブ。 The member for adjusting the upward pressing force of the compression spring includes a screw portion formed on a lid portion at the lower end of the cylindrical body, an adjustment bolt that is screwed into the screw portion to move up and down, The fire hydrant valve according to claim 1, comprising a spring receiving plate disposed at a lower end. 前記圧縮スプリングの上向きの押圧力を調整する部材は、前記弁ロッドと一体的に下方へ向けて筒状体の下方部まで延設され、弁体及び圧力調整用ロッド並びにピストン部材を貫通して前記弁ロッドと共に上下動する垂設ロッドと、この垂設ロッドの下端に上下移動可能に配設されたスプリング受け板と、前記垂設ロッドの下端に設けられた螺子部に螺合する調整ナットとで構成されている請求項１に記載の消火栓用バルブ。 The member for adjusting the upward pressing force of the compression spring extends downward to the lower part of the cylindrical body integrally with the valve rod, and penetrates the valve body, the pressure adjusting rod, and the piston member. A hanging rod that moves up and down together with the valve rod, a spring receiving plate disposed at the lower end of the hanging rod so as to be movable up and down, and an adjustment nut that is screwed into a screw portion provided at the lower end of the hanging rod The fire hydrant valve according to claim 1, comprising:
JP2003384497A 2003-11-14 2003-11-14 Fire hydrant valve Expired - Lifetime JP4467285B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016083191A (en) * 2014-10-27 2016-05-19 学校法人立命館 Community fire hydrant added with auxiliary fire extinction function
CN113638467A (en) * 2021-07-28 2021-11-12 梁可儿 Disconnect-type ground fire hydrant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016083191A (en) * 2014-10-27 2016-05-19 学校法人立命館 Community fire hydrant added with auxiliary fire extinction function
CN113638467A (en) * 2021-07-28 2021-11-12 梁可儿 Disconnect-type ground fire hydrant

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