JP3662301B2 - Water absorption strainer for pump equipment - Google Patents

Water absorption strainer for pump equipment Download PDF

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Publication number
JP3662301B2
JP3662301B2 JP16989795A JP16989795A JP3662301B2 JP 3662301 B2 JP3662301 B2 JP 3662301B2 JP 16989795 A JP16989795 A JP 16989795A JP 16989795 A JP16989795 A JP 16989795A JP 3662301 B2 JP3662301 B2 JP 3662301B2
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Prior art keywords
water
filter
pump
strainer
casing
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JP16989795A
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JPH0921386A (en
Inventor
幸郎 有光
祥郎 石垣
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Arimitsu Industry Co Ltd
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Arimitsu Industry Co Ltd
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Description

【0001】
【産業上の利用分野】
本発明は、主に土木・建築用の高圧水噴射式洗浄機や同高圧水噴射式解体作業機等に適用され、ポンプ装置の給水側において土砂等の異物を取り除くポンプ装置用吸水ストレーナに関する。
【0002】
【従来の技術】
近年、家屋やビル等の建築物の洗浄や解体等をする際、公害原因となる粉塵の発生を防止するため、ポンプ装置によって高圧水を噴射する高圧水噴射式洗浄機等が注目されている。
【0003】
ところで、前記ポンプ装置に水を汲上げる水源として、特に、震災によって破壊された建築物の解体時には、水道水等の清水が得られ難いため、河川や湖沼及び貯水タンク等が使用される。そして、これらの水はゴミや土砂等の異物を含んでいることから、この異物が水と共にポンプ装置に汲上げられ、その内部機器を破損したりするのを阻止するため、前記ポンプ装置に接続する吸水ホースの入口側にストレーナを取付けるようにしている。
【0004】
このようなストレーナとして、従来では、図6のものが使用されており、ベース部材Aに、ポンプ装置に至る給水ホースFを接続する筒形の中芯部材Bを嵌着し、この中芯部材Bの外周部に係合係止するカバーCと前記ベース部材Aとの間に、筒状フィルタDを取付け、このフィルタDの内部で前記中芯部材Bの下方に複数のポンプ接続口Eを開口している。Gは、フィルタDを保形するスペーサ部材である。
【0005】
そして、前記ストレーナの全体を水源に投入してポンプ装置を駆動することにより、水源の水に含まれるゴミや土砂等の異物をフィルタDで分離濾過し、清浄水のみを接続口E、中芯部材B、吸水ホースFを経てポンプ装置へと汲上げ、該ポンプ装置から被解体建築物に向けて高圧水を噴出させるようにしている。
【0006】
【発明が解決しようとする課題】
ところが、以上の従来のストレーナは、水源の水を前記フィルタDに直接導入する構造としているため、該フィルタDの外周面に異物が付着して目詰まりを起し易く、早期に使用不能となるのであり、従って、頻繁にフィルタDの洗浄作業を行う必要があった。
【0007】
本発明の目的は、フィルタの目詰まりを少なくして、頻繁な洗浄作業を必要とすることなく長期使用が可能なストレーナを提供することにある。
【0008】
【課題を解決するための手段】
以上の目的を達成するため、本発明のポンプ装置用吸水ストレーナは、上下に離隔して対向する上部カバー及びベース部材間に円筒部材を配してなるケーシングと、前記上部カバーを貫通してその下端部が前記ベース部材に結合され、上下方向の途中に支持板を有する中芯部材と、該中芯部材及び前記円筒部材の間であり、前記上部カバー及び前記支持板間に配された円筒形のフィルタと、該フィルタ及び前記円筒部材間の周回通路に該周回通路の周方向へ開放された吸水口と、前記中芯部材の前記フィルタ内となる位置に穿設され、ポンプに接続されるポンプ接続口とを備える構成とした。
【0009】
【作用】
吸水口からケーシング内に取り込まれた水源の水は、円筒部材とフィルタとの間に画成した周回通路を周回しつつ、前記フィルタ内のポンプ接続口からポンプ側へ汲上げられる。水が周回通路を周回するとき、水に含まれる比較的大きな異物は、その周回による遠心力により、径方向外方に分離除去される。こうして、異物の少なくなった水がフィルタへと供給されるため、該フィルタの目詰まりを少なくでき、頻繁な洗浄作業を必要とすることなく、長期使用が可能となる。しかも、水に含まれる異物は、周回通路の移流時とフィルタの通過時との2段階にわたって分離除去されるため、ポンプ側に異物が汲上げられるのを良好に阻止でき、このポンプ側の異物による破損事故を良好に防ぐことができる。
【0010】
【実施例】
図5に示すものは、本発明にかかる吸水ストレーナSを高圧水噴射式洗浄機あるいは解体作業機に適用した一例を示しており、同図の実施例では、移動輪Wをもつ移動式ポンプユニットUを用い、このポンプユニットUに内装したポンプPの吸水側に吸水ホースH1を接続し、その先端に水中投入形の前記ストレーナSを取付けて、該ストレーナSを貯水タンクT内に投入位置させると共に、前記ポンプPの吐水側には吐水ホースH2を接続し、その先端に噴射ノズルNを取付けている。Mは、モータやエンジン等の駆動源、Qは圧力計である。
【0011】
そして、前記ポンプPの駆動に伴い前記タンクT内の水をストレーナS、吸水ホースH1を経てポンプPへと汲上げ、この汲上げた水を前記吐水ホースH2を経て噴射ノズルNの先端から例えば被解体建築物に向けて噴出することにより、粉塵の発生を防止しながら解体作業等を行うのである。
【0012】
尚、前記ポンプユニットUはアンローダ弁Rを備え、該弁Rを余水ホースH3を介して前記タンクTに開口させ、前記ポンプPの余剰水を前記アンローダ弁R及び余水ホースH3を経て貯水タンクTに排出できるようにしている。
【0013】
前記水中投入形のストレーナSは、図1〜図3のように、筒状のケーシング1と、該ケーシング1の中央内部に着脱可能に立設し、中間部やや上方寄りに複数のポンプ接続口21を設けた筒状の中芯部材2と、この中芯部材2におけるポンプ接続口21の外周囲に配設するメッシュ等から成る筒形フィルタ3と、ケーシング1とフィルタ3との間に画成される周回通路4に沿って水を取り込む吸水口51をもった概略L形状の導入管5とから構成される。
【0014】
更に詳述すると、前記ケーシング1は、組立や、前記フィルタ3の掃除等を行う際の分解等を容易に行えるようにするため、上下両端を開口した円筒部材11と、該円筒部材11の下端側に嵌め込みにより取付けられるベース部材12と、前記円筒部材11の上端側にベース部材12と対向状に嵌め込みにより取付けられ、中央部に前記中芯部材2の挿通孔13aをもつ上部カバー13とから形成している。そして、前記ベース部材12に上方に向かって膨出する膨出部12aを一体形成して、該膨出部12aの中央上部側にねじ体14を埋込状に固着すると共に、前記中芯部材2の上端部には、前記上部カバー13の挿通孔13aの周りに当接する鍔部22を一体状に設けて、このカバー13の挿通孔13aから前記中芯部材2を挿入し、その鍔部22を前記挿通孔13aの周りに圧接した状態で、前記中芯部材2の先端に形成したねじ部23を前記ねじ体14へと螺入することにより、前記円筒部材11の上下部位に前記ベース部材12とカバー13とを圧入状に嵌め込み固定するようにしている。
【0015】
前記円筒部材11は、ステンレス板など以外に透明な合成樹脂板で形成してもよく、斯かる透明板で形成するときには、前記フィルタ3の目詰まり状態などを外部から容易に確認することができる。
【0016】
また、各図の実施例では、前記ベース部材12の外周囲に、前記円筒部材11の下方内周面に当接し、該円筒部材11の形状を保持する複数の保形リブ12bを一体形成している。
【0017】
前記ベース部材12は合成樹脂などで形成され、その成形時に内部に重錘15をインサート成形して、この重錘15により前記ストレーナSを貯水タンクTの底部に沈め易いようにしている。
【0018】
また、前記上部カバー13には前記導入管5を取付けるのであって、この導入管5は、その吸水口51が周回通路4の上部側に位置され、かつ、該吸水口51が周回通路4に対し接線方向を指向するように前記カバー13の径方向外方側に取付ける。
【0019】
さらに、前記フィルタ3は、前記円筒部材11の内壁面に前記周回通路4を介して対向する筒壁面31を備えて成り、斯かるフィルタ3を前記ケーシング1の内部で前記中芯部材2における吸水口21の外周囲に配設している。具体的には、前記中芯部材2の上下方向中間部位に円板形状の支持板6を止め輪61により固定し、この支持板6と前記上部カバー13との間に前記フィルタ3を支持させる。つまり、前記上部カバー13の下部側と前記支持板6の上部側に複数の保形リブ7を一体形成している。複数の保形リブ7によりフィルタ3を保持し、前記筒壁面31を前記円筒部材11の内壁面と対向させた状態で、前記フィルタ3の全体を前記中芯部材2に宙架状に支持させるのである。
【0020】
また、前記中芯部材2の上部側には連結具8を螺着し、該連結具8を介して前記ポンプPに至る吸入ホースH1を接続している。
【0021】
次に、以上の構成とした水中投入形ストレーナSの作用について説明する。例えば被解体建築物に対し水を噴出させるときには、前記ストレーナSを貯水タンクT内に投入して前記ポンプユニットUのポンプPを駆動することにより、前記タンクT内の異物を含む水が、前記導入管5の吸水口51から前記ケーシング1の内部に導入される。
【0022】
また、異物を含む水は、図2,図3の矢印イで示すように、前記ケーシング1と前記フィルタ3との間に設けた前記周回通路4に対し接線方向に導入され、この周回通路4を螺旋状の上下旋回流となって移流されながら、前記フィルタ3の筒壁面31を通過し、前記中芯部材2に設けた各接続口21から吸水ホースH1を介して前記ポンプPへと汲上げられ、該ポンプPに接続する吐水ホースH2を介して前記ノズルNの先端から被解体建築物に向けて噴出される。
【0023】
そして、前記ケーシング1に導入された水が前記周回通路4を移流するとき、水に含まれる異物の大部分が、図3の矢印ロで示すように、遠心力により径方向外方に分離除去され、この分離除去された異物は、前記ケーシング1における円筒部材11の内壁面に沿ってベース部材12上に貯溜される。また、異物の大部分が分離除去された水が、図3の矢印ハで示すように、前記フィルタ3の筒壁面31へと供給されるのであり、従って、筒壁面31の目詰まりを少なくできて、頻繁な洗浄作業を要することなく、長期間にわたる使用が可能となる。しかも、水に含まれる異物は、前記周回通路4を移流するときと、前記フィルタ3を通過するときとの2段階にわたって分離除去されるため、前記ポンプPに異物が水と共に汲上げられるのを良好に阻止できて、このポンプPの内部機器類が異物によって破損したりするのを確実に防止することができる。
【0024】
また、以上のような作業を長期継続して行うことにより、前記フィルタ3が汚れたりして洗浄作業や交換作業を行うときには、前記中芯部材2を螺回しながら、そのねじ部23を前記ベース部材12のねじ体14から取外すことにより、該ベース部材12及び円筒部材11側に対し、前記中芯部材2と上部カバー13及びフィルタ3を外部に簡単に取出すことができ、また、前記止め輪61を取外すことにより、前記中芯部材2からフィルタ3を簡単に分解することもできて、このフィルタ3の洗浄や交換作業が行い易くなる。また、これらの作業後には、前記中芯部材2のねじ部23を前記ねじ体14に再度螺締することにより、前記ベース部材12及び円筒部材11側に対し前記中芯部材2と上部カバー13及びフィルタ3を簡単に組付けることができる。
【0025】
以上の実施例では、水中投入形ストレーナSについて説明したが、本発明のストレーナSは地上設置形とすることもできる。この場合は、図4に示すように、前記導入管5の上部側に水中投入ホースH4を接続すると共に、前記ケーシング1内を気密状に保持するのであり、つまり、その円筒部材11のベース部材12に対する嵌め込み部分、円筒部材11の上部カバー13に対する嵌め込み部分、該カバー13の挿入孔13aと前記中芯部材2との挿入部位、また、前記カバー13に対する導入管5の挿入部位に、それぞれシールリング9を介装させることにより、前記ケーシング1の内部を気密状とするのである。
【0026】
そして、例えば被解体建築物に対し水を噴出させるときには、前記ストレーナSの全体を地上に設置し、前記ホースH4を水中に投入して前記ポンプPを駆動することにより、前記ホースH4から導入管5へと水を汲上げ、以後は前述した場合と同様にして、この導入管5の吸水口51から水を前記ケーシング1内へと導入させるのである。
【0027】
以上のように、前記ストレーナSを地上設置形とする場合は、前記導入管5に接続するホースH4だけを水中に投入すればよいため、前記ストレーナSの全体を水中に投入する場合に較べ、投入作業を簡単かつ省力的に行うことができ、特に、前記ストレーナSの投入作業が行い難い河川や湖沼などの水を水源として使用するときに好都合となる。尚、以上には、前記ストレーナSの使用例として被解体建築物に対し水を噴出させる場合について説明したが、前記ストレーナSは、水中の異物を除去しながら高圧水を噴出させる各種洗浄作業機等の用途にもそのまま使用することができる。
【0028】
【発明の効果】
以上説明したように、本発明によれば、吸水口からケーシング内に取り込まれた水が円筒部材とフィルタとの間の周回通路を周回するとき、水に含まれる比較的大きな異物は、その周回による遠心力により、径方向外方に分離除去され、異物の少なくなった水がフィルタへと供給されるため、該フィルタの目詰まりを少なくでき、頻繁な洗浄作業を必要とすることなく、長期使用が可能となる。しかも、水に含まれる異物は、周回通路の移流時とフィルタの通過時との2段階にわたって分離除去されるため、ポンプ側に異物が汲上げられるのを良好に阻止でき、このポンプ側の異物による破損事故を良好に防止することができる。
【図面の簡単な説明】
【図1】本発明にかかる吸水ストレーナの縦断面図。
【図2】図1のX−X線方向の断面図。
【図3】図1のY−Y線方向の断面図。
【図4】他の実施例を示す断面図。
【図5】同ストレーナの使用例を示す説明図。
【図6】従来例を示す断面図。
【符号の説明】
1……ケーシング
21…ポンプ接続口
3……フィルタ
4……周回通路
51…吸水口
[0001]
[Industrial application fields]
The present invention relates to a water absorption strainer for a pump device, which is mainly applied to a high pressure water jet cleaning machine for civil engineering and construction, a high pressure water jet type dismantling work machine, and the like and removes foreign matters such as earth and sand on the water supply side of the pump device.
[0002]
[Prior art]
In recent years, high-pressure water-injection washing machines that inject high-pressure water with a pump device have attracted attention in order to prevent the generation of dust that causes pollution when cleaning or dismantling buildings such as houses and buildings. .
[0003]
By the way, as a water source for pumping water into the pump device, rivers, lakes, water storage tanks, and the like are used because fresh water such as tap water is difficult to obtain particularly when a building destroyed by an earthquake is demolished. Since these waters contain foreign matters such as dust and earth and sand, they are connected to the pump device in order to prevent them from being pumped together with water to the pump device and damaging the internal equipment. A strainer is attached to the inlet side of the water absorption hose.
[0004]
As such a strainer, the one shown in FIG. 6 is conventionally used, and a cylindrical core member B for connecting a water supply hose F leading to the pump device is fitted to the base member A, and this core member is fitted. A cylindrical filter D is attached between the base member A and the cover C that engages and locks the outer periphery of B, and a plurality of pump connection ports E are provided below the core member B in the filter D. It is open. G is a spacer member for retaining the filter D.
[0005]
Then, by putting the entire strainer into the water source and driving the pump device, foreign matter such as dust and earth and sand contained in the water of the water source is separated and filtered by the filter D, and only clean water is connected to the connection port E, the core. The pump is pumped up to the pump device through the member B and the water absorption hose F, and high-pressure water is ejected from the pump device toward the building to be demolished.
[0006]
[Problems to be solved by the invention]
However, since the conventional strainer described above has a structure in which water from the water source is directly introduced into the filter D, foreign matter adheres to the outer peripheral surface of the filter D and is easily clogged, and becomes unusable at an early stage. Therefore, it is necessary to frequently perform the cleaning operation of the filter D.
[0007]
An object of the present invention is to provide a strainer that can be used for a long period of time without reducing the clogging of the filter and requiring frequent cleaning operations.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a water absorbing strainer for a pump device according to the present invention includes a casing in which a cylindrical member is disposed between an upper cover and a base member that are spaced apart from each other and face each other, and the upper cover passes through the casing. A core member having a lower end coupled to the base member and having a support plate in the middle of the vertical direction, and a cylinder disposed between the upper cover and the support plate, between the core member and the cylindrical member A filter having a shape, a water inlet opening in a circumferential direction of the circular passage in the circular passage between the filter and the cylindrical member, and a hole formed in the filter in the central core member and connected to a pump. And a pump connection port.
[0009]
[Action]
The water of the water source taken into the casing from the water suction port is pumped from the pump connection port in the filter to the pump side while circling a circulation path defined between the cylindrical member and the filter. When the water circulates in the circulation passage, relatively large foreign matters contained in the water are separated and removed radially outward by the centrifugal force generated by the circulation. In this way, since water with reduced foreign matter is supplied to the filter, clogging of the filter can be reduced, and long-term use is possible without requiring frequent cleaning operations. Moreover, the foreign matter contained in the water is separated and removed in two stages, when the circulation passage is advancing and when passing through the filter, so that it is possible to satisfactorily prevent the foreign matter from being pumped to the pump side. The damage accident by can be prevented well.
[0010]
【Example】
FIG. 5 shows an example in which the water-absorbing strainer S according to the present invention is applied to a high-pressure water-jet cleaning machine or a dismantling work machine. In the embodiment of the figure, a mobile pump unit having a moving wheel W is shown. U is used to connect a water absorption hose H1 to the water absorption side of a pump P installed in the pump unit U, and the water-injection type strainer S is attached to the tip of the water-supplying hose H1. At the same time, a water discharge hose H2 is connected to the water discharge side of the pump P, and an injection nozzle N is attached to the tip thereof. M is a drive source such as a motor or an engine, and Q is a pressure gauge.
[0011]
As the pump P is driven, the water in the tank T is pumped to the pump P via the strainer S and the water absorption hose H1, and the pumped water is supplied from the tip of the injection nozzle N via the water discharge hose H2, for example. By ejecting toward the building to be demolished, dismantling work is performed while preventing the generation of dust.
[0012]
The pump unit U is provided with an unloader valve R, the valve R is opened to the tank T via a spillage hose H3, and excess water from the pump P is stored via the unloader valve R and spillage hose H3. The tank T can be discharged.
[0013]
As shown in FIGS. 1 to 3, the submerged-type strainer S is provided with a cylindrical casing 1 and a detachable standing inside the center of the casing 1, and a plurality of pump connection ports slightly above the middle part. A cylindrical core member 2 provided with a cylinder 21, a cylindrical filter 3 made of mesh or the like disposed on the outer periphery of the pump connection port 21 in the core member 2, and a casing 1 and a filter 3. It is comprised from the substantially L-shaped introduction pipe 5 with the water intake 51 which takes in water along the surrounding channel | path 4 comprised.
[0014]
More specifically, the casing 1 has a cylindrical member 11 having both upper and lower ends opened and a lower end of the cylindrical member 11 so that the casing 1 can be easily assembled and disassembled when the filter 3 is cleaned. A base member 12 that is attached by fitting to the side, and an upper cover 13 that is attached to the upper end side of the cylindrical member 11 by fitting so as to face the base member 12 and has an insertion hole 13a of the core member 2 at the center. Forming. Then, a bulging portion 12a bulging upward is integrally formed on the base member 12, and a screw body 14 is fixed in an embedded manner on the center upper side of the bulging portion 12a. 2 is integrally provided with a flange 22 that contacts around the insertion hole 13a of the upper cover 13, and the core member 2 is inserted through the insertion hole 13a of the cover 13, and the flange In a state in which 22 is pressed around the insertion hole 13a, a screw portion 23 formed at the tip of the core member 2 is screwed into the screw body 14, so that the base is placed on the upper and lower portions of the cylindrical member 11. The member 12 and the cover 13 are fitted and fixed in a press-fit manner.
[0015]
The cylindrical member 11 may be formed of a transparent synthetic resin plate other than a stainless steel plate or the like. When the cylindrical member 11 is formed of such a transparent plate, the clogged state of the filter 3 can be easily confirmed from the outside. .
[0016]
Further, in the embodiments shown in the drawings, a plurality of shape retaining ribs 12 b that abut the lower inner peripheral surface of the cylindrical member 11 and hold the shape of the cylindrical member 11 are integrally formed on the outer periphery of the base member 12. ing.
[0017]
The base member 12 is formed of a synthetic resin or the like, and a weight 15 is insert-molded therein during molding so that the strainer S can be easily submerged in the bottom of the water storage tank T.
[0018]
The introduction pipe 5 is attached to the upper cover 13, and the introduction pipe 5 has a water inlet 51 positioned on the upper side of the circulation passage 4, and the water absorption opening 51 is connected to the circulation passage 4. On the other hand, the cover 13 is attached to the radially outer side so as to be directed in the tangential direction.
[0019]
Further, the filter 3 includes a cylindrical wall surface 31 that is opposed to the inner wall surface of the cylindrical member 11 via the circulation passage 4, and the filter 3 is configured to absorb water in the core member 2 inside the casing 1. It is arranged on the outer periphery of the mouth 21. Specifically, a disc-shaped support plate 6 is fixed to a middle portion in the vertical direction of the core member 2 by a retaining ring 61 and the filter 3 is supported between the support plate 6 and the upper cover 13. . That is, a plurality of shape retaining ribs 7 are integrally formed on the lower side of the upper cover 13 and the upper side of the support plate 6. The filter 3 is held by a plurality of shape retaining ribs 7, and the entire filter 3 is supported in a suspended manner on the core member 2 with the cylindrical wall surface 31 facing the inner wall surface of the cylindrical member 11. It is.
[0020]
Further, a connecting tool 8 is screwed onto the upper side of the core member 2 and a suction hose H1 reaching the pump P is connected via the connecting tool 8.
[0021]
Next, the operation of the underwater strainer S having the above configuration will be described. For example, when water is ejected to the building to be demolished, the strainer S is put into the water storage tank T and the pump P of the pump unit U is driven, so that the water containing foreign matter in the tank T It is introduced into the casing 1 from the water inlet 51 of the introduction pipe 5.
[0022]
2 and 3, the water containing the foreign matter is introduced in a tangential direction with respect to the circulation passage 4 provided between the casing 1 and the filter 3, and the circulation passage 4 Is passed through the cylindrical wall surface 31 of the filter 3 while being transferred in the form of a spiral up-and-down swirl flow and pumped from the connection ports 21 provided in the core member 2 to the pump P through the water absorption hose H1. It is raised and ejected from the tip of the nozzle N toward the building to be demolished through the water discharge hose H2 connected to the pump P.
[0023]
When the water introduced into the casing 1 flows through the circulation passage 4, most of the foreign matter contained in the water is separated and removed radially outward by centrifugal force as shown by the arrow b in FIG. 3. The separated and removed foreign matter is stored on the base member 12 along the inner wall surface of the cylindrical member 11 in the casing 1. Further, the water from which most of the foreign matter is separated and removed is supplied to the cylindrical wall surface 31 of the filter 3 as shown by the arrow C in FIG. 3, and therefore, the clogging of the cylindrical wall surface 31 can be reduced. Thus, it can be used over a long period of time without requiring frequent cleaning operations. In addition, the foreign matter contained in the water is separated and removed in two stages, when it flows through the circulation passage 4 and when it passes through the filter 3, so that the foreign matter is pumped together with water into the pump P. It can prevent well and can prevent reliably that the internal apparatus of this pump P is damaged with a foreign material.
[0024]
Further, by performing the above operation for a long period of time, when the filter 3 is contaminated and a cleaning operation or a replacement operation is performed, the screw portion 23 is set to the base while the core member 2 is screwed. By removing the member 12 from the screw body 14, the core member 2, the upper cover 13 and the filter 3 can be easily taken out of the base member 12 and the cylindrical member 11, and the retaining ring By removing 61, the filter 3 can be easily disassembled from the core member 2, and the filter 3 can be easily cleaned and replaced. Further, after these operations, the threaded portion 23 of the core member 2 is screwed to the screw body 14 again, whereby the core member 2 and the upper cover 13 with respect to the base member 12 and the cylindrical member 11 side. And the filter 3 can be easily assembled.
[0025]
In the above embodiment, the submersion type strainer S has been described. However, the strainer S of the present invention may be a ground installation type. In this case, as shown in FIG. 4, an underwater charging hose H4 is connected to the upper side of the introduction pipe 5 and the inside of the casing 1 is kept airtight, that is, the base member of the cylindrical member 11 12, the insertion portion of the cylindrical member 11 with respect to the upper cover 13, the insertion portion of the cover 13 with the insertion hole 13 a and the core member 2, and the insertion portion of the introduction pipe 5 with respect to the cover 13, respectively. By interposing the ring 9, the inside of the casing 1 is made airtight.
[0026]
For example, when water is ejected to the building to be demolished, the entire strainer S is installed on the ground, the hose H4 is poured into the water, and the pump P is driven to introduce the introduction pipe from the hose H4. The water is pumped up to 5, and thereafter, water is introduced into the casing 1 from the water inlet 51 of the introduction pipe 5 in the same manner as described above.
[0027]
As described above, when the strainer S is installed on the ground, only the hose H4 connected to the introduction pipe 5 needs to be put into the water, so that the entire strainer S is put into the water, The charging operation can be performed simply and labor-saving, and is particularly convenient when water such as a river or a lake is difficult to perform the loading operation of the strainer S as a water source. In the above, the case where water is ejected to the dismantled building as an example of the use of the strainer S has been described. However, the strainer S can perform various cleaning work machines that eject high-pressure water while removing foreign matter in the water. It can also be used as it is for such applications.
[0028]
【The invention's effect】
As described above, according to the present invention, when the water taken into the casing from the water suction port circulates in the circulation passage between the cylindrical member and the filter, relatively large foreign matters contained in the water The water is separated and removed outward in the radial direction due to the centrifugal force, and water with less foreign matter is supplied to the filter. Therefore, clogging of the filter can be reduced, and frequent cleaning work is not required for a long time. Can be used. Moreover, the foreign matter contained in the water is separated and removed in two stages, when the circulation passage is advancing and when passing through the filter, so that it is possible to satisfactorily prevent the foreign matter from being pumped to the pump side. It is possible to prevent the damage accident due to.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a water absorbing strainer according to the present invention.
FIG. 2 is a cross-sectional view taken along the line XX of FIG.
3 is a cross-sectional view in the YY line direction of FIG.
FIG. 4 is a cross-sectional view showing another embodiment.
FIG. 5 is an explanatory view showing an example of use of the strainer.
FIG. 6 is a cross-sectional view showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Casing 21 ... Pump connection port 3 ... Filter 4 ... Circulation path 51 ... Water absorption port

Claims (1)

上下に離隔して対向する上部カバー及びベース部材間に円筒部材を配してなるケーシングと、前記上部カバーを貫通してその下端部が前記ベース部材に結合され、上下方向の途中に支持板を有する中芯部材と、該中芯部材及び前記円筒部材の間であり、前記上部カバー及び前記支持板間に配された円筒形のフィルタと、該フィルタ及び前記円筒部材間の周回通路に該周回通路の周方向へ開放された吸水口と、前記中芯部材の前記フィルタ内となる位置に穿設され、ポンプに接続されるポンプ接続口とを備えることを特徴とするポンプ装置用吸水ストレーナ。 A casing in which a cylindrical member is disposed between an upper cover and a base member that are spaced apart from each other in the vertical direction, and a lower end portion of the casing that passes through the upper cover and is coupled to the base member. A central core member, a cylindrical filter disposed between the central core member and the cylindrical member, and disposed between the upper cover and the support plate; and a circulation path between the filter and the cylindrical member. A water- absorbing strainer for a pump device , comprising: a water-absorbing port opened in a circumferential direction of a passage; and a pump connection port that is drilled at a position in the filter of the core member and connected to a pump .
JP16989795A 1995-07-05 1995-07-05 Water absorption strainer for pump equipment Expired - Fee Related JP3662301B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16989795A JP3662301B2 (en) 1995-07-05 1995-07-05 Water absorption strainer for pump equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16989795A JP3662301B2 (en) 1995-07-05 1995-07-05 Water absorption strainer for pump equipment

Publications (2)

Publication Number Publication Date
JPH0921386A JPH0921386A (en) 1997-01-21
JP3662301B2 true JP3662301B2 (en) 2005-06-22

Family

ID=15894999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16989795A Expired - Fee Related JP3662301B2 (en) 1995-07-05 1995-07-05 Water absorption strainer for pump equipment

Country Status (1)

Country Link
JP (1) JP3662301B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4910185B2 (en) * 2004-07-30 2012-04-04 株式会社ヴァレオジャパン Compressor having foreign matter removing device
CN103982421B (en) * 2014-05-21 2016-04-06 何先进 There is the water plug of the joint of hierarchy Stamping Steel Ribbon and the radial elongate slot of band
CN103967774B (en) * 2014-05-21 2016-02-24 余丽君 There is the water plug of sliding conical bearing and sliding Stamping Steel Ribbon

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