JP4996948B2 - Underground fire hydrant - Google Patents
Underground fire hydrant Download PDFInfo
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- JP4996948B2 JP4996948B2 JP2007064311A JP2007064311A JP4996948B2 JP 4996948 B2 JP4996948 B2 JP 4996948B2 JP 2007064311 A JP2007064311 A JP 2007064311A JP 2007064311 A JP2007064311 A JP 2007064311A JP 4996948 B2 JP4996948 B2 JP 4996948B2
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- valve
- support plate
- fire hydrant
- valve stem
- opening
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Description
この発明は、地下に設置され、かつ、内ネジ式で、弁棒が昇降しない形式の消火栓の改良に関する。 The present invention relates to an improvement of a fire hydrant that is installed in the basement and has an internal screw type and does not move up and down.
従来から、内ネジ式の地下式消火栓は、既に提案、実施されている。（例えば、特許文献１参照） この消火栓は、弁箱の上面に弁体挿入口と流体出口とを兼用する開口を形成すると共に、この開口の一部に弁棒支持部を設けたものである。
ところが、前記従来の実施例では、弁棒支持部が弁箱の上面に、弁箱と一体的に形成され、ここに弁棒が貫通状に取付けられている。この為、消火栓の組立時や、分解時の作業性に問題がある。即ち、弁棒の支持の一部が、弁箱本体の支持部でなされているため、組立・分解時にはその都度、弁棒をこの支持部から抜き取らなければならず、その為には、弁棒の下端に取付けられている弁体を取外さなければならない。その上、弁箱上に設置される上蓋に、弁棒支持部とホース連結用口金とが一体に形成されているので、組立作業時には、連結用口金なども同時に着脱しなければならないという問題もある。 However, in the above-described conventional embodiment, the valve stem support portion is formed integrally with the valve box on the upper surface of the valve box, and the valve rod is attached in a penetrating manner. For this reason, there is a problem in workability when assembling or disassembling the fire hydrant. That is, since a part of the support of the valve stem is made by the support part of the valve box body, the valve stem must be pulled out from the support part every time when assembling and disassembling. The valve body attached to the lower end of the must be removed. In addition, since the valve stem support part and the hose connection base are integrally formed on the upper cover installed on the valve box, there is also a problem that the connection base etc. must be removed at the same time during assembly work. is there.
本発明は、このような点に鑑み、内ネジ式の消火栓に於いて、構造を簡単にし、かつ、部品点数を少なくして、組立・分解時の作業性を良くした地下式消火栓を提供することにある。 In view of these points, the present invention provides an underground fire hydrant that has a simple structure and a reduced number of parts and improves workability during assembly and disassembly in the internal screw fire hydrant. There is.
本発明の地下式消火栓の技術的手段は、下面に水の流入口を有し、上面に水の流出口と開口とを有する弁箱と、水の流入口を開閉する弁体と、弁体の上部と螺合する弁棒と、開口の上面に取付けられて、弁棒を回転自在に支持する上蓋とからなり、開口は大きくて、弁体の出し入れが自在であり、開口には、弁棒支持強度を有する支持板が取付けられ、この支持板で、弁棒のフランジ部の下面を、回転可能・上下移動不可能に支持することにある。 The technical means of the underground fire hydrant of the present invention includes a valve box having a water inlet on the lower surface and a water outlet and opening on the upper surface, a valve body for opening and closing the water inlet, and a valve body a valve stem which top and screwing, attached to the upper surface of the opening, consists of a top cover for rotatably supporting the valve stem, opening is large, freely and out of the valve body, the opening, the valve A support plate having a rod support strength is attached, and this support plate supports the lower surface of the flange portion of the valve rod so that it can rotate and cannot move up and down .
また、金属製の支持板で、弁棒のフランジ部の下面を、スラストワッシャを介して支持するのが好ましい。更に、支持板は弾性変形自在であり、その周縁部が弁箱で支持され、また上蓋の下面の内周縁にはリング状の突起が形成されていて、上蓋によって支持板が上方から押さえられた時に、この突起の突出分だけ支持板に弾性変形が生じるようにするのが好ましい。 Further, it is preferable that the lower surface of the flange portion of the valve stem is supported by a metal support plate via a thrust washer. Furthermore, the support plate is elastically deformable, its peripheral edge is supported by a valve box, and a ring-shaped protrusion is formed on the inner periphery of the lower surface of the upper lid, and the support plate is pressed from above by the upper lid. sometimes have is preferable to so elastic deformation occurs in the projecting amount corresponding support plate of the projection.
本発明の地下式消火栓では、弁箱の上面に設けられた開口が大きくて、ここに取付けた支持板で、弁棒支持の一部を受け持たせる形式であるから、上蓋を着脱するだけで、弁棒と弁体とを、同時かつ一体的に着脱でき、組立や分解時の作業性が非常によい。また、支持板は、弁箱と上蓋とで挟む形式であるから、余分な締付部品が不要であり、かつ、固定時の作業手間を省くことができる。このように本発明の消火栓は、構造が簡単で、部品点数が少ないので、製造コストを下げることができる。更に、支持板は、弁棒支持強度を有するので、弁棒をしっかりと支持でき、かつ、弁棒のフランジ部の下面を、回転可能・上下移動不可能に支持するので、弁棒を回転操作することによって、弁棒を昇降させることなく、弁体のみを昇降させて、消火栓の開閉作業を行うことができる。 In the underground fire hydrant of the present invention, the opening provided on the upper surface of the valve box is large, and the support plate attached to this is a type that receives a part of the valve stem support, so only by attaching and detaching the upper lid The valve stem and the valve body can be attached and detached simultaneously and integrally, and the workability during assembly and disassembly is very good. Further, since the support plate is sandwiched between the valve box and the upper lid, no extra fastening parts are required, and the labor for fixing can be saved. Thus, the fire hydrant of the present invention has a simple structure and a small number of parts, so that the manufacturing cost can be reduced. Furthermore, since the support plate has valve stem support strength, the valve stem can be supported firmly, and the lower surface of the flange portion of the valve stem is supported so that it can rotate and cannot move up and down. By doing so, it is possible to open and close the fire hydrant by raising and lowering only the valve body without raising and lowering the valve stem.
請求項２のものでは、金属製の支持板で、弁棒のフランジ部の下面を、スラストワッシャを介して支持する方式を採ったので、弁棒を、簡単な構成で、回転可能・上下移動不可能に支持できる。 According to the second aspect of the present invention, since the metal support plate is used to support the lower surface of the flange portion of the valve stem via a thrust washer, the valve stem can be rotated with a simple configuration and moved up and down. Can support it impossible.
請求項３のものでは、支持板が弾性変形自在であり、上蓋の下面の内周縁に突起があるので、支持板を、弁箱と上蓋とで締付けた時に、突起の突出分だけ支持板に弾性変形が生じ、この弾性復元力によって、支持板が固定されると共に、この力が締付部に作用するようになり、締付部の緩み止めを果たすことができる。 According to the third aspect of the present invention, since the support plate is elastically deformable and there is a protrusion on the inner peripheral edge of the lower surface of the upper lid, when the support plate is tightened with the valve box and the upper lid, the protrusion of the protrusion is applied to the support plate. Elastic deformation occurs, the elastic restoring force fixes the support plate, and this force acts on the tightening portion, thereby preventing the tightening portion from loosening.
本発明の地下式消火栓を実施するための最良の形態を、以下に図面の実施例に基づいて説明する。図１には、消火栓の全体が示されている。１は弁箱であり、その下面には水の流入口２が設けられ、かつ、弁座面３が形成されている。弁箱１の上面には、弁体出入れ用開口４と水の流出口５とが設けられている。開口４は、大きくて、弁体６を自由に出し入れ可能である。 BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the underground fire hydrant of the present invention will be described below based on the embodiments of the drawings. FIG. 1 shows the entire fire hydrant. Reference numeral 1 denotes a valve box. A water inlet 2 is provided on the lower surface of the valve box, and a valve seat surface 3 is formed. A valve body entrance / exit 4 and a water outlet 5 are provided on the upper surface of the valve box 1. The opening 4 is large and the valve body 6 can be freely inserted and removed.
弁箱１内の弁体６は、弁座面３と接触・離間し、流入口２を開閉する。また、弁体６の下面の外側には、ゴム層７が形成されていて、弁座面３と密に接触するようになる。更に、弁体６の上部には、ネジ孔８が設けられていて、ここに弁棒１０が螺合結合し、弁棒１０が、同一位置で回転させられると、弁体６は上下方向に移動して、流入口２を開閉する。なお、弁体６は、従動回転しないように、弁箱１の内壁で、上下方向にのみスライドできるよう凹凸嵌合で支持されている。また、流出口５には、消火ホース連結用の口金９が取付けられている。 The valve body 6 in the valve box 1 contacts and separates from the valve seat surface 3 to open and close the inflow port 2. Further, a rubber layer 7 is formed on the outside of the lower surface of the valve body 6 so as to come into close contact with the valve seat surface 3. Furthermore, a screw hole 8 is provided in the upper part of the valve body 6, and the valve stem 10 is screwed and joined to the valve body 6. When the valve stem 10 is rotated at the same position, the valve body 6 is moved vertically. Move to open and close the inlet 2. In addition, the valve body 6 is supported by uneven fitting on the inner wall of the valve box 1 so as to be slidable only in the vertical direction so as not to be driven to rotate. Moreover, a base 9 for connecting a fire hose is attached to the outlet 5.
弁棒１０は、上下方向の中ほどにフランジ部１２を有し、フランジ部１２より下はネジ部１１になっていて、このネジ部１１は弁体のネジ孔８と螺合する。フランジ部１２より上部は丸棒部１３になっており、更にその上にはキャップ１４が取付けられている。 Valve stem 10 has a flange portion 12 in the middle in the vertical direction, is lower than the flange portion 12, making it the screw portion 11, the screw portion 11 is screwed into the threaded hole 8 of the valve body. An upper portion from the flange portion 12 is a round bar portion 13, and a cap 14 is further mounted thereon.
２０は上蓋で、中央部に孔２１を有し、開口４の上面にＯリング２２を介して被せられ、複数個所をボルト・ナット２３で、弁箱１に締付固定される。中央部の孔２１には、Ｏリングケース２４が取付けられ、ここに弁棒の丸棒部１３が回転自在に嵌合する。またフランジ部１１の下面は、スラストワッシャ１５を介して支持板１６で支持される。 Reference numeral 20 denotes an upper lid, which has a hole 21 at the center, is covered on the upper surface of the opening 4 via an O-ring 22, and is fixed to the valve box 1 by bolts and nuts 23 at a plurality of locations. An O-ring case 24 is attached to the hole 21 at the center, and the round rod portion 13 of the valve rod is rotatably fitted therein. The lower surface of the flange portion 11 is supported by a support plate 16 via a thrust washer 15.
支持板１６は、薄い円盤状の金属板で、中央に弁棒１０が貫通する孔を有して、開口４に置かれ、その周縁部が、弁箱１で支持される。従って、弁棒１０は、そのフランジ部１２の上部をＯリングケース２４により、また、フランジ部１２の下部を、スラストワッシャ１５を介して支持板１６によって、上下両方から支持されるようになる。 The support plate 16 is a thin disk-shaped metal plate, has a hole through which the valve stem 10 passes in the center, is placed in the opening 4, and the peripheral portion thereof is supported by the valve box 1. Accordingly, the valve stem 10 is supported from above and below by the O-ring case 24 at the upper portion of the flange portion 12 and by the support plate 16 through the thrust washer 15 at the lower portion of the flange portion 12.
この取付部の詳細な構造は、図２に示されている。支持板１６は、実施例では、厚さ２ｍｍのステンレス鋼製で、適度な弾力性を有し、弾性変形可能である。他方、上蓋２０の下面の内周縁には、リング状に突起２５が形成されている。従って、支持板１６は、その周縁部を弁箱１で支持され、かつ、上蓋２０によって、上方から押されると、中央部では突起２５の突出分だけ押されて、支持板１６が弾性変形するようになる。そして、この変形による弾性復元力によって、支持板１６は固定されるようになると共に、この力が、弁箱１と上蓋２０との間にも作用して、ボルト・ナット２３の緩み止め効果を果たすようになる。 The detailed structure of this attachment is shown in FIG. In the embodiment, the support plate 16 is made of stainless steel having a thickness of 2 mm, has an appropriate elasticity, and is elastically deformable. On the other hand, a protrusion 25 is formed in a ring shape on the inner periphery of the lower surface of the upper lid 20. Accordingly, when the peripheral edge of the support plate 16 is supported by the valve box 1 and is pushed from above by the upper lid 20, the support plate 16 is pushed by the protrusion of the protrusion 25 at the center, and the support plate 16 is elastically deformed. It becomes like this. The support plate 16 is fixed by the elastic restoring force due to this deformation, and this force also acts between the valve box 1 and the upper lid 20 to prevent the bolts and nuts 23 from being loosened. Come to fulfill.
本発明の地下式消火栓は、以上のような構成であり、弁棒１０はＯリングケース２４と、支持板１６とによって、上蓋２０に回転可能、上下移動不可能に支持されている。従って、弁棒１０を回転させても、弁棒１０は上下移動せず、これと螺合する弁体６のみが上下方向に移動して、流入口を開閉する。また、開口４は大きくて、弁体６の出し入れは自在であるから、上蓋２０に、弁棒１０及び弁体６を取付けたままで弁箱１からの着脱が可能である。この為、組立や分解などの作業時には、上蓋２０の着脱だけの作業でよく、ホース連結用の口金９などの着脱は不要であるから、作業性が非常に良い。 The underground fire hydrant of the present invention is configured as described above, and the valve stem 10 is supported on the upper lid 20 by the O-ring case 24 and the support plate 16 so as to be rotatable and not movable up and down. Therefore, even if the valve stem 10 is rotated, the valve stem 10 does not move up and down, and only the valve body 6 screwed with the valve stem 10 moves up and down to open and close the inlet. Since the opening 4 is large and the valve body 6 can be taken in and out, it can be attached to and detached from the valve box 1 with the valve rod 10 and the valve body 6 attached to the upper lid 20. For this reason, at the time of operations such as assembly and disassembly, only the operation of attaching and detaching the upper lid 20 is required, and the attachment and detachment of the base 9 for connecting the hose and the like is unnecessary, and thus the workability is very good.
支持板１６は、弁箱１と上蓋２０とで挟むだけで固定されるので、余分な締付部品が不要であり、取付け時も簡単で、作業手間が省ける。また、支持板１６は弾性変形が可能であり、上蓋２０の下面の内周縁には突起２５が設けられているので、支持板１６が、上蓋２０によって締付けられると、突起２５の突出分だけ支持板１６が弾性変形するようになり、この弾性復元力によって支持板１６が固定され、かつ、この力が締付部にも作用し、ボルト・ナット２３の緩み止めの効果を果たすことができる。 Since the support plate 16 is fixed simply by being sandwiched between the valve box 1 and the upper lid 20, no extra fastening parts are required, it is easy to install, and labor can be saved. Further, the support plate 16 can be elastically deformed, and the protrusion 25 is provided on the inner peripheral edge of the lower surface of the upper lid 20. The plate 16 is elastically deformed, and the support plate 16 is fixed by the elastic restoring force, and this force also acts on the tightening portion, so that the bolt and nut 23 can be prevented from loosening.
本発明は、前記の実施例に限定されるものではなく、特許請求の範囲の記載の範囲内で自由に変形実施可能である。特に、支持板１６の材質や形状などは自由である。 The present invention is not limited to the above-described embodiments, and can be freely modified within the scope of the claims. In particular, the material and shape of the support plate 16 are free.
１ 弁箱
２ 流入口
３ 弁座面
４ 開口
５ 流出口
６ 弁体
８ ネジ孔
１０ 弁棒
１１ ネジ部
１２ フランジ部
１３ 丸棒部
１５ スラストワッシャ
１６ 支持板
２０ 上蓋
２３ ボルト・ナット
２４ Ｏリングケース
２５ 突起
DESCRIPTION OF SYMBOLS 1 Valve box 2 Inlet 3 Valve seat surface 4 Opening 5 Outlet 6 Valve body 8 Screw hole 10 Valve rod 11 Screw part 12 Flange part 13 Round bar part 15 Thrust washer 16 Support plate 20 Upper cover 23 Bolt / nut 24 O-ring case 25 Protrusions
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007064311A JP4996948B2 (en) | 2007-03-14 | 2007-03-14 | Underground fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007064311A JP4996948B2 (en) | 2007-03-14 | 2007-03-14 | Underground fire hydrant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008223368A JP2008223368A (en) | 2008-09-25 |
| JP4996948B2 true JP4996948B2 (en) | 2012-08-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007064311A Active JP4996948B2 (en) | 2007-03-14 | 2007-03-14 | Underground fire hydrant |
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| Country | Link |
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| JP (1) | JP4996948B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11326742B2 (en) * | 2017-07-31 | 2022-05-10 | Fujikin Incorporated | Valve |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS597421Y2 (en) * | 1979-07-04 | 1984-03-07 | 若島工業株式会社 | Sub-valve at underground fire hydrant |
| JP3081942B2 (en) * | 1991-02-26 | 2000-08-28 | 能美防災株式会社 | Fire hydrant equipment |
| JP3778702B2 (en) * | 1997-09-25 | 2006-05-24 | 正文 南 | Fire hydrant with air valve |
| JP3570945B2 (en) * | 2000-01-14 | 2004-09-29 | 株式会社栗本鐵工所 | Fire hydrant with air valve |
| JP2004027581A (en) * | 2002-06-25 | 2004-01-29 | Meiwa Seisakusho:Kk | Underground hydrant |
| JP2005061618A (en) * | 2003-07-25 | 2005-03-10 | Kyowa Kogyo Kk | Air valve and hydrant therewith |
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| Publication number | Publication date |
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| JP2008223368A (en) | 2008-09-25 |
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