JPH0711797Y2 - Watering nozzle - Google Patents
Watering nozzleInfo
- Publication number
- JPH0711797Y2 JPH0711797Y2 JP9834689U JP9834689U JPH0711797Y2 JP H0711797 Y2 JPH0711797 Y2 JP H0711797Y2 JP 9834689 U JP9834689 U JP 9834689U JP 9834689 U JP9834689 U JP 9834689U JP H0711797 Y2 JPH0711797 Y2 JP H0711797Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- valve
- sprinkling
- hole
- pressure adjusting
- 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
Landscapes
- Nozzles (AREA)
Description
【考案の詳細な説明】 〔考案の目的〕 (産業上の利用分野) 本考案は主に路面に消雪用等として埋設される散水ノズ
ルに関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention mainly relates to a sprinkler nozzle that is buried on a road surface for snow removal and the like.
(従来の技術) 従来、この種の散水ノズルは、実公昭52−7847号公報や
実公昭63−8434号公報等に示されている如く様々なもの
がある。(Prior Art) Conventionally, there are various types of water spray nozzles of this type, as shown in Japanese Utility Model Publication No. 52-7847, Japanese Utility Model Publication No. 63-8434, and the like.
これらの基本構成は、下部に給水管接続口を有し路面等
に埋設される鋳物製のノズル本体と、このノズル本体の
内部に装着された制圧調整ねじ付き水圧調整弁と、前記
ノズル本体上部に設けられ前記水圧調整弁を通して制圧
された水を外に散水する散水孔付き散水キャップとを備
えてなる。These basic configurations are: a nozzle body made of casting, which has a water supply pipe connection port in the lower part and is buried in a road surface, a water pressure adjusting valve with a pressure adjusting screw mounted inside the nozzle body, and an upper part of the nozzle body. And a sprinkling cap with a sprinkling hole for spouting the water suppressed through the water pressure adjusting valve to the outside.
(考案が解決しようとする課題) ところで、前述の従来の散水ノズルでは、ノズル本体内
の水圧調整弁の弁室下端が比較的大径な丸孔でもって下
部給水管接続口側と連通しているから、砂止めの機能を
果たさず、下部給水管接続口側から水に混じって送られ
て来る砂等の異物が殆どそのまま水圧調整弁の弁室内に
流入してしまう。このために砂等の異物が水圧調整弁の
弁室内や制水吐出口さらにはノズル本体内や散水キャッ
プの散水孔に溜まって目詰りを起こし易く、比較的短期
間で散水機能が失われてしまうので、保守点検などのメ
ンテナンスが大変であった。(Problems to be solved by the invention) By the way, in the above-mentioned conventional water spray nozzle, the lower end of the valve chamber of the water pressure adjusting valve in the nozzle body is connected to the lower water supply pipe connection port side by a relatively large round hole. Since it does not function as a sand stop, foreign matter such as sand that is mixed with water from the lower water supply pipe connection port side flows into the valve chamber of the water pressure control valve almost as it is. For this reason, foreign matter such as sand easily accumulates in the valve chamber of the water pressure adjusting valve, the water discharge port, the nozzle body, and the water spray hole of the water spray cap, causing clogging, and the water spray function is lost in a relatively short period of time. It was difficult to carry out maintenance such as maintenance and inspection.
本考案は前記事情に鑑みなされ、砂止め機能に優れ、水
に混じって送られて来る砂等の異物の水圧調整弁内への
流入を激減できると共に、一旦水圧調整弁内に異物が侵
入しても残留することが無く、水圧調整弁の弁室内や制
水吐出口さらにはノズル本体内や散水キャップの散水孔
の目詰りを防止でき、散水機能を長期間維持できて保守
点検などのメンテナンスが楽となる散水ノズルを提供す
ることを目的とする。The present invention has been made in view of the above circumstances, has an excellent sand stop function, and can significantly reduce the inflow of foreign matter such as sand sent in mixed with water into the water pressure adjustment valve, and at the same time, foreign matter once enters the water pressure adjustment valve. Even if it does not remain, it is possible to prevent clogging of the water pressure control valve chamber, the water control discharge port, the nozzle body, and the water spray hole of the water spray cap. It is an object of the present invention to provide a sprinkling nozzle that makes it easier.
(課題を解決するための手段) 本考案は前記目的を達成するために、下部に給水管接続
口を有し路面等に配設されるノズル本体と、このノズル
本体の内部に装着された水圧調整弁と、同ノズル本体上
部に設けられ前記水圧調整弁を通して制圧された水を外
に散水する散水孔付き散水キャップとを備えてなる散水
ノズルにおいて、前記水圧調整弁の下部に幅狭なスリッ
ト形状で且つ上方に向け断面テーパー状に拡開する砂止
め孔を設けたことを特徴とする。(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention has a nozzle main body having a water supply pipe connection port at the bottom and arranged on a road surface, and a hydraulic pressure installed inside the nozzle main body. In a sprinkling nozzle including a regulating valve and a sprinkling cap provided at the upper part of the nozzle main body for sprinkling the water suppressed through the water pressure regulating valve to the outside, a narrow slit is formed below the water pressure regulating valve. It is characterized in that it has a sand stop hole that has a shape and expands upward in a tapered cross-section.
(作用) 前記構成の散水ノズルでは、ノズル本体の下部給水管接
続口側から水に混じって砂等の異物が送られて来ても、
水圧調整弁の下部に従来の大径な丸孔に代えて、幅狭な
スリット形状の砂止め孔を設けたので、そこで砂等の異
物が止められて、水圧調整弁内への流入が激減するよう
になる。また水圧調整弁内に異物が侵入しても、該幅狭
な砂止め孔を通過できる異物は粒径が小さいので途中で
詰まることなく、水圧調整弁の制水吐出口からノズル本
体内を通って散水キャップの散水孔より噴出されると共
に、砂止め孔が上方に向け断面テーパー状に拡開するの
で、弁室内の異物が底部周辺に沈降推積せずに吹上られ
て外に噴出されるようになり、しかも給水停止時には断
面テーパー状の砂止め孔より異物が自然降下して下部給
水管方に落ちる。これにて異物の残留が無く、目詰りが
防止できて、散水機能を長期間維持でき、保守点検など
のメンテナンスが楽となる。(Operation) In the sprinkling nozzle having the above structure, even if foreign matter such as sand is mixed with water from the lower water supply pipe connection port side of the nozzle body and is sent,
In place of the conventional large-diameter round hole at the bottom of the water pressure adjustment valve, a narrow slit-shaped sand stop hole is provided, so foreign matter such as sand is stopped there and the inflow into the water pressure adjustment valve is drastically reduced. Come to do. Even if a foreign matter enters the water pressure adjusting valve, the foreign matter that can pass through the narrow sand stop hole has a small particle size and does not clog in the middle of the water pressure adjusting valve. In addition to being ejected from the sprinkling hole of the sprinkling cap, the sand stop hole expands upward in a tapered cross-section, so foreign matter in the valve chamber is blown up and blown out without settling around the bottom. Moreover, when the water supply is stopped, the foreign matter naturally drops from the sand stop hole with a tapered cross section and falls toward the lower water supply pipe. As a result, no foreign matter remains, clogging can be prevented, the water sprinkling function can be maintained for a long time, and maintenance such as maintenance and inspection becomes easy.
(実施例) 以下本考案の一実施例を図面に従い説明する。第1図は
組立て状態の断面図、第2図は同平面図、第3図は水圧
調整弁の斜視図、第4図は全体の分解斜視図である。図
中1はコンクリート舗装路面等に上端面が面一となる状
態に埋設されるノズル本体で、強度的に強い鋳造品(FC
D)よりなる。このノズル本体1は下部に筒状の給水管
接続口1aを有し、地中より立ち上げた給水管2にOリン
グ3を介して接続する。またこのノズル本体1の給水管
接続口1a内周面の上半分には雌ねじ1bが形成されている
と共に、その上側には周囲に広がった大径な制水鎮圧室
1cが形成され、更にその上側に縮径部1dを介して大径な
キャップ装着室1eが形成されている。Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of an assembled state, FIG. 2 is a plan view of the same, FIG. 3 is a perspective view of a water pressure adjusting valve, and FIG. 4 is an exploded perspective view of the whole. In the figure, 1 is a nozzle body that is embedded in a concrete paved road surface, etc. so that the upper end surface is flush.
D) consists of. The nozzle body 1 has a cylindrical water supply pipe connection port 1a at the lower part, and is connected to a water supply pipe 2 which is erected from the ground through an O-ring 3. Further, a female screw 1b is formed on the upper half of the inner peripheral surface of the water supply pipe connection port 1a of the nozzle body 1, and a large diameter water suppression chamber spread around the upper side of the female screw 1b.
1c is formed, and further, a cap mounting chamber 1e having a large diameter is formed on the upper side thereof via the reduced diameter portion 1d.
図中4は前記ノズル本体1内中央部に装着された水圧調
整弁、この水圧調整弁4は弁箱5と、この内部に装着さ
れたスライドスリーブ6及び雌ねじスリーブ7と、これ
らの内部にねじ込まれた制圧調整ねじ8とから構成され
ている。In the figure, 4 is a water pressure adjusting valve mounted in the central part of the nozzle body 1, and this water pressure adjusting valve 4 is a valve box 5, a slide sleeve 6 and an internal thread sleeve 7 mounted therein, and is screwed into these. It is composed of a pressure suppression adjusting screw 8.
前記弁箱5は内部に弁室5aを持つ略円筒状のもので、こ
の弁箱5の下部外周面に雄ねじ5bが形成され、これを前
記ノズル本体1の雌ねじ1bにねじ込むことで該ノズル本
体1内にOリング9を介して装着されている。なおノズ
ル本体1の雌ねじ1bは角溝ねじで、弁箱5の雄ねじ5bは
丸山ねじとされ且つ面取り5cされて、砂等の異物噛み込
み防止対応設計とされている。The valve box 5 is of a substantially cylindrical shape having a valve chamber 5a inside, and a male screw 5b is formed on the outer peripheral surface of the lower portion of the valve box 5, and by screwing this into an internal screw 1b of the nozzle body 1, the nozzle body It is mounted in 1 through an O-ring 9. The female screw 1b of the nozzle body 1 is a square groove screw, and the male screw 5b of the valve box 5 is a round thread screw and chamfered 5c to prevent foreign matter such as sand from being caught.
この弁箱5の弁室5a下部に1.5mm程度の幅狭で8mm程度の
長さを持つスリット形状で且つ上方に向け断面テーパー
状に拡開する砂止め孔5dが形成されている。またこの弁
箱5の中間高さの周壁部にはノズル本体1の制水鎮圧室
1cに向けラッパ状に開口する制水吐出口5eが複数個周方
向に等間隔を存して形成されている。さらにこの弁箱5
の上端部にはゴム栓穴兼用六角レンチ穴5fが形成され、
且つその外周にはキャップ押え鍔5gが突出形成されてい
る。In the lower portion of the valve chamber 5a of the valve box 5, there is formed a sand stop hole 5d which has a slit shape having a width of about 1.5 mm and a length of about 8 mm and which expands upward in a tapered sectional shape. Further, in the peripheral wall portion of the valve box 5 at an intermediate height, the water suppression chamber of the nozzle body 1 is provided.
A plurality of water control discharge ports 5e opening in a trumpet shape toward 1c are formed at equal intervals in the circumferential direction. Furthermore, this valve box 5
A hexagon wrench hole 5f that also serves as a rubber plug hole is formed at the upper end of
In addition, a cap pressing collar 5g is formed on the outer periphery of the cap pressing protrusion.
この弁箱5の弁室5a内上半部位に上方から前記六角レン
チ穴5fを介してスライドスリーブ6が圧入嵌合され、こ
の上側に雌ねじスリーブ7が接着剤を塗布して圧入接着
嵌合されている。The slide sleeve 6 is press-fitted into the upper half portion of the valve chamber 5a of the valve box 5 from above through the hexagonal wrench hole 5f, and the female thread sleeve 7 is coated with adhesive on the upper side and press-fitted and adhesively fitted. ing.
そのスライドスリーブ6は一種の弁座で矩形円筒状をな
しており、周壁部に前記弁箱5の各制水吐出口5eと合致
連通する複数個の制水孔6aが形成されている。The slide sleeve 6 is a kind of valve seat and has a rectangular cylindrical shape, and a plurality of water control holes 6a that are in communication with the water control discharge ports 5e of the valve box 5 are formed in the peripheral wall portion.
また、その上側の接着固定された雌ねじスリーブ7は円
筒状で、内周面に雌ねじ7aが形成されている。Further, the female screw sleeve 7 on the upper side of which is adhesively fixed has a cylindrical shape, and a female screw 7a is formed on the inner peripheral surface thereof.
この雌ねじスリーブ7内に一種の流量調整弁体である前
記制圧調整ねじ8が螺合されている。この制圧調整ねじ
8は上半部のみに雄ねじ8aが形成され、マイナスドライ
バーにより容易に雌ねじスリーブ7内にねじ込みでき、
そのねじ込み深さの調整により、ねじ山を持たない棒状
下半部8bが前記スライドスリーブ6内に摺嵌して制水孔
6aの開口量を大小可変する構成である。The pressure regulating screw 8 which is a kind of flow rate regulating valve body is screwed into the female screw sleeve 7. A male screw 8a is formed only on the upper half of the pressure regulation adjusting screw 8 and can be easily screwed into the female screw sleeve 7 by a flat-blade screwdriver.
By adjusting the screw-in depth, the rod-shaped lower half portion 8b having no thread is slidably fitted into the slide sleeve 6 and the water control hole is formed.
This is a configuration in which the opening amount of 6a is variable.
なお、この制圧調整ねじ8の雄ねじ8aと雌ねじスリーブ
7の雌ねじ7aとは砂等の異物噛み込み防止対応設計とさ
れていると共に、その制圧調整ねじ8の棒状下半部8bと
雌ねじスリーブ7内面との間にはOリング10を介在して
シールしている。The male screw 8a of the pressure regulating screw 8 and the female screw 7a of the female screw sleeve 7 are designed to prevent foreign matter such as sand from being caught, and the rod-shaped lower half portion 8b of the pressure regulating screw 8 and the inner surface of the female screw sleeve 7 are prevented. An O-ring 10 is interposed between and to seal.
また、前記水圧調整弁4のスライドスリーブ6はポリエ
チレン等の樹脂製で、錆や耐酸性に強く且つ海岸に近い
地域における塩分を含む水にも対応できて永年使用に耐
えるようになっている。また弁箱5は鋳鋼品(SCS)、
雌ねじスリーブ7は黄銅加工品(BsBM)、制圧調整ねじ
8はステンレス鋼(SUS)であって、これら各部品相互
の食い付きが異種金属の電位差の違いにより防止されて
いる。このことは鋳造品(FCD)よりなるノズル本体1
に対しても同様である。Further, the slide sleeve 6 of the water pressure adjusting valve 4 is made of a resin such as polyethylene, and is resistant to rust and acid, and can cope with salt-containing water in a region near the coast, and can be used for many years. The valve box 5 is made of cast steel (SCS),
The female thread sleeve 7 is a brass processed product (BsBM), and the pressure control screw 8 is stainless steel (SUS), so that the biting between these parts is prevented by the difference in the potential difference between different metals. This is the nozzle body 1 made of cast product (FCD).
The same is true for.
図中11は前記ノズル本体1上部のキャップ装着室1e内に
嵌められた散水キャップで、鋳鋼特殊配合の鋳造品(SC
S)よりなる高硬度で耐摩耗性並びに耐蝕性に優れたリ
ング形状とされ、この中央穴部内に係合段部11aが形成
され、これが前記水圧調整弁4の弁箱5のキャップ押え
鍔5gにより押さえ付けられて抜け外れないようにされて
いる。この散水キャップ11の上面部に断面略逆三角形状
で直径1cm弱程度のやや丸い凹部11bが複数個(例えば図
示の如く4個)周方向に等間隔を存して形成されている
と共に、その各凹部11b内の外向き斜面下部にそれぞれ
上端を開口して散水孔11cが一個ずつ斜め上方外向きに
形成されている。この各散水孔11cは直径3mm程度の小径
孔である。またこれら各散水孔11cの下側には断面略三
角形状の流水溝11dが環状に亘り形成され、これにて該
各散水孔11cの孔長さが出来るだけ短く構成されて目詰
まりし難いようにされている。In the figure, 11 is a water spray cap fitted in the cap mounting chamber 1e above the nozzle body 1, which is a cast product with a special mixture of cast steel (SC
S) has a high hardness and is excellent in wear resistance and corrosion resistance, and an engaging stepped portion 11a is formed in the central hole, which is a cap pressing collar 5g of the valve casing 5 of the water pressure adjusting valve 4. It is pressed down by and prevented from coming off. On the upper surface of the sprinkling cap 11, there are formed a plurality of (for example, four as shown in the drawing) recessed portions 11b each having a substantially inverted triangular cross section and a diameter of slightly less than 1 cm at equal intervals in the circumferential direction. Water spouting holes 11c are formed obliquely upward and outward one by one with their upper ends opened at the lower portions of the outward slopes in the respective recesses 11b. Each of the water spray holes 11c is a small diameter hole having a diameter of about 3 mm. Further, under each of these water spray holes 11c, a water flow groove 11d having a substantially triangular cross section is formed in an annular shape, so that the length of each water spray hole 11c is configured as short as possible so that clogging is unlikely to occur. Has been
なおその散水キャップ11の外周面とノズル本体1との
間、並びに散水キャップ11の内周面と水圧調整弁4の弁
箱5との間にはOリング12,13が介在されてシールされ
ている。O-rings 12 and 13 are interposed and sealed between the outer peripheral surface of the water spray cap 11 and the nozzle body 1, and between the inner peripheral surface of the water spray cap 11 and the valve casing 5 of the water pressure adjusting valve 4. There is.
また組立施工状態では水圧調整弁4の弁箱5上端のゴム
栓穴兼用六角レンチ穴5fにゴム栓(図示せず)を圧入嵌
合して閉成状態が保たれる。In the assembled state, a rubber plug (not shown) is press-fitted into the hexagon wrench hole 5f that also serves as a rubber plug hole at the upper end of the valve box 5 of the water pressure adjusting valve 4 to keep the closed state.
而して、前述の構成の散水ノズルでは、降雪時など路面
上への散水を行うべく、地中配管より立ち上げた下部給
水管2より給水すると、その水はノズル本体1の下部給
水管接続口1aから水圧調整弁4の弁箱5下部のスリット
形状の砂止め孔5dを通って弁室5aに入り、そこからスラ
イドスリーブ6内の制圧調整ねじ8により開口量が調整
された複数の制水孔6aを通って、ラッパ状に開口する制
水吐出口5eより広い制水鎮圧室1cに入り、そこから縮径
部1dを介して散水キャップ11の流水溝11dを通り、各散
水孔11cより斜め上方外向きに噴出されて路面上に散水
されるようになる。Thus, in the water sprinkling nozzle having the above-described configuration, when water is sprinkled from the lower water supply pipe 2 that is raised from the underground pipe to sprinkle water on the road surface during snowfall, the water is connected to the lower water supply pipe of the nozzle body 1. From the opening 1a to the valve chamber 5a through the slit-shaped sand stop hole 5d in the lower portion of the valve box 5 of the water pressure adjusting valve 4, and from there, a plurality of control openings whose opening amounts are adjusted by the pressure adjusting screws 8 in the slide sleeve 6 are provided. Through the water hole 6a, enter the water suppression chamber 1c wider than the water discharge outlet 5e opening like a trumpet, and from there, through the water flow groove 11d of the water spray cap 11 via the reduced diameter portion 1d, each water spray hole 11c. It will be jetted more obliquely upward and sprinkled on the road surface.
こうした散水時、前記下部給水管接続口1aから水に混じ
って砂等の異物が送られて来ても、水圧調整弁4の弁箱
5下部の砂止め孔5dが、従来の大径な丸孔に代えて、幅
狭なスリット形状とされているので、そこで砂等の異物
が止められて水圧調整弁4の弁室5a内への流入が激減す
るようになる。Even when foreign matter such as sand mixed in with water is sent from the lower water supply pipe connection port 1a during such water sprinkling, the sand stop hole 5d in the lower portion of the valve box 5 of the water pressure adjusting valve 4 has a large diameter in the conventional circle. Since the holes are replaced by narrow slits, foreign matters such as sand are stopped there, and the inflow of the water pressure adjusting valve 4 into the valve chamber 5a is drastically reduced.
また、その砂止め孔5dを通過して弁室5a内方に異物が侵
入しても、該幅狭な砂止め孔5dを通過できる異物は粒径
が小さいので途中で詰まることなく、水圧調整弁4の制
水孔6a及び制水吐出口5e並びに散水キャップ11の散水孔
11aをスムーズに通過して外に噴出されるようになる。Further, even if foreign matter enters the inside of the valve chamber 5a through the sand stop hole 5d, the foreign matter that can pass through the narrow sand stop hole 5d has a small particle size and is not clogged on the way. Water control hole 6a and water control discharge port 5e of valve 4 and water spray hole of water spray cap 11
It will pass smoothly through 11a and be ejected to the outside.
また砂止め孔5dが上方に向け断面テーパー状に拡開する
ので、弁室5a内の異物が底部周辺に沈降推積せずに吹上
られて外に噴出されるようになると共に、給水停止時に
は弁室5a内の異物が自然降下して下部給水管方に落ち
る。これにて異物の残留が無くなり、目詰りが防止でき
て、散水機能を長期間維持でき、保守点検などのメンテ
ナンスが楽となる。In addition, since the sand stop hole 5d expands upward in a tapered shape in cross section, the foreign matter in the valve chamber 5a is blown up and ejected to the outside without settling around the bottom portion, and when the water supply is stopped. The foreign matter in the valve chamber 5a naturally falls and falls toward the lower water supply pipe. As a result, foreign matter does not remain, clogging can be prevented, the water sprinkling function can be maintained for a long time, and maintenance such as maintenance inspection becomes easy.
なお、その他、前記水圧調整弁4の各制水吐出口5eが広
い制水鎮圧室1cに向けラッパ状に開口しているので、そ
の制水鎮圧室1c内の異物も底部に沈降推積せずに吹上ら
れて散水キャップ11の散水孔11cより外に噴出されるよ
うになると共に、泥等の逆流による水圧調整弁4内の目
詰まりがなくなる。また各散水孔11cの孔長さが短いの
で異物の目詰まりが一層起き難い。皿には各散水孔11c
の上端が凹部11b内の落ち込んだ位置に開口しているの
で、タイヤチェーンやその他の外力により散水孔11cが
変形して塞がるなどの不都合が無くなる。In addition, since each water discharge outlet 5e of the water pressure adjusting valve 4 opens in a trumpet shape toward the wide water suppression chamber 1c, foreign matter in the water suppression chamber 1c is also settled on the bottom. Instead, it is blown up and jetted out from the water spray holes 11c of the water spray cap 11, and the clogging of the water pressure adjusting valve 4 due to the reverse flow of mud or the like is eliminated. Further, since the length of each water spray hole 11c is short, it is more difficult for foreign matter to be clogged. Each watering hole 11c on the plate
Since the upper end of the tire is opened in the recessed position in the recess 11b, there is no inconvenience that the water spray hole 11c is deformed and closed by a tire chain or other external force.
また、水圧調整弁4を六角レンチで回してノズル本体1
内から抜き外せば簡単に分解が可能で、楽に保守点検等
のメンテナンスができると共に、施工後でも散水キャッ
プ11の交換や散水孔11cの向き換えが可能である。In addition, turn the water pressure adjusting valve 4 with a hexagon wrench to rotate the nozzle body 1
It can be easily disassembled by removing it from the inside, and maintenance such as maintenance and inspection can be done easily, and the sprinkling cap 11 and the sprinkling hole 11c can be changed even after construction.
本考案は前述の如く構成したので、砂止め機能に優れ、
水に混じって送られて来る砂等の異物の水圧調整弁内へ
の流入を激減できると共に、一旦水圧調整弁内に異物が
侵入しても推積残留を防止できて、水圧調整弁の弁室内
や制水吐出口さらにはノズル本体内や散水キャップの散
水孔の目詰りを防止でき、散水機能を長期間維持できて
保守点検などのメンテナンスを楽となせる優れた効果が
得られる。Since the present invention is configured as described above, it has an excellent sand blocking function,
It is possible to drastically reduce the inflow of foreign matter such as sand sent in mixed with water into the water pressure control valve, and even if foreign matter once enters the water pressure control valve, it is possible to prevent residual deposit, and the valve of the water pressure control valve can be prevented. It is possible to prevent clogging of the inside of the room, the water discharge outlet, the nozzle body, and the sprinkling hole of the sprinkling cap, and the sprinkling function can be maintained for a long period of time, resulting in an excellent effect of facilitating maintenance such as maintenance and inspection.
図面は本考案の一実施例を示すもので、第1図は断面
図、第2図は平面図、第3図は水圧調整弁だけの斜視
図、第4図は全体の分解斜視図である。 1……ノズル本体、1b……給水管接続口、4……水圧調
整弁、5d……砂止め孔、11……散水キャップ、11c……
散水孔。FIG. 1 is a sectional view, FIG. 2 is a plan view, FIG. 3 is a perspective view of only a water pressure adjusting valve, and FIG. 4 is an exploded perspective view of the whole. . 1 …… Nozzle body, 1b …… Water supply pipe connection port, 4 …… Water pressure adjusting valve, 5d …… Sand stop hole, 11 …… Sprinkling cap, 11c ……
Sprinkling holes.
Claims (1)
れるノズル本体と、このノズル本体の内部に装着された
水圧調整弁と、同ノズル本体上部に設けられ前記水圧調
整弁を通して制圧された水を外に散水する散水孔付き散
水キャップとを備えてなる散水ノズルにおいて、前記水
圧調整弁の下部に幅狭なスリット形状で且つ上方に向け
断面テーパー状に拡開する砂止め孔を設けたことを特徴
とする散水ノズル。1. A nozzle main body having a water supply pipe connection port at a lower part and buried in a road surface, a water pressure adjusting valve mounted inside the nozzle main body, and a water pressure adjusting valve provided at an upper part of the nozzle main body. A sprinkling nozzle having a sprinkling cap with a sprinkling hole for sprinkling the suppressed water to the outside, in which a sand stop hole having a narrow slit shape at the bottom of the water pressure adjusting valve and expanding upward in a tapered cross section The watering nozzle is characterized by being provided with.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9834689U JPH0711797Y2 (en) | 1989-08-23 | 1989-08-23 | Watering nozzle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9834689U JPH0711797Y2 (en) | 1989-08-23 | 1989-08-23 | Watering nozzle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0338165U JPH0338165U (en) | 1991-04-12 |
JPH0711797Y2 true JPH0711797Y2 (en) | 1995-03-22 |
Family
ID=31647450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9834689U Expired - Lifetime JPH0711797Y2 (en) | 1989-08-23 | 1989-08-23 | Watering nozzle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0711797Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010265980A (en) * | 2009-05-14 | 2010-11-25 | Ntn Corp | Chain tensioner |
-
1989
- 1989-08-23 JP JP9834689U patent/JPH0711797Y2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010265980A (en) * | 2009-05-14 | 2010-11-25 | Ntn Corp | Chain tensioner |
Also Published As
Publication number | Publication date |
---|---|
JPH0338165U (en) | 1991-04-12 |
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