JP3320185B2 - Filter device for liquid filtration - Google Patents
Filter device for liquid filtrationInfo
- Publication number
- JP3320185B2 JP3320185B2 JP00159694A JP159694A JP3320185B2 JP 3320185 B2 JP3320185 B2 JP 3320185B2 JP 00159694 A JP00159694 A JP 00159694A JP 159694 A JP159694 A JP 159694A JP 3320185 B2 JP3320185 B2 JP 3320185B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- liquid
- housing body
- head cover
- filter element
- 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
- Filtration Of Liquid (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、主に潤滑油用濾過装置
や産業用油圧機器の油圧回路中の圧油等を濾過して清浄
化するのに利用される液体濾過用フィルタ装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter device for liquid filtration which is mainly used for filtering and purifying a pressure oil or the like in a hydraulic circuit of a lubricating oil filter or a hydraulic circuit of industrial hydraulic equipment.
【０００２】[0002]
【従来の技術】一般に、この種の油圧機器等に用いられ
る液体濾過用フィルタ装置（濾過器）は、液体回路（油
圧回路等）の配管などに接続して取り付けられるハウジ
ング本体と、この本体内に挿脱可能に収納保持されるフ
ィルタエレメントと、ヘッドカバー等で構成されてい
る。そのフィルタエレメントは、多数の孔を有した内筒
コアと、濾過面積を多く確保すべくプリーツ状（ジグザ
グ状）に多数折曲した状態で前記内筒コアの外周に囲設
された濾材と、これら上下端に被嵌された底板及び流通
口付き天板とからなるカートリッジタイプのものが多
い。このフィルタエレメントは、所定期間使用したらハ
ウジング本体のヘッドカバーを外して取り出して新しい
ものと交換する。2. Description of the Related Art In general, a filter device (filter) for liquid filtration used in this type of hydraulic equipment or the like includes a housing main body connected to a pipe of a liquid circuit (a hydraulic circuit or the like) and the like, and a housing body inside the main body. It is composed of a filter element housed and held so that it can be inserted into and removed from the device, a head cover and the like. The filter element includes an inner cylindrical core having a large number of holes, and a filter medium surrounded on the outer periphery of the inner cylindrical core in a state of being bent in a pleat shape (zigzag shape) to secure a large filtration area, There are many cartridge-type cartridges consisting of a bottom plate fitted to the upper and lower ends and a top plate with a flow opening. After the filter element has been used for a predetermined period of time, the head cover of the housing body is removed, taken out, and replaced with a new one.
【０００３】[0003]
【発明が解決しようとする課題】ところで、こうした従
来の液体濾過用フィルタ装置では、フィルタエレメント
の交換作業中に、そのハウジング本体の上部が開放され
ることから、該ハウジング本体に接続している液体回路
中の配管内の液体（圧油等）が、残圧や位置的（高さ）
エネルギーによって、該ハウジング本体の上部から溢れ
出て、周囲にこぼれてしまう問題があった。In such a conventional filter device for liquid filtration, the upper portion of the housing body is opened during the replacement operation of the filter element, so that the liquid connected to the housing body is removed. The liquid (pressure oil, etc.) in the piping in the circuit is the residual pressure and the position (height)
There is a problem that the energy overflows from the upper part of the housing body and spills around.
【０００４】そこで、従来では、ハウジング本体から液
体が流出しないように、液体回路中の液体を全て取り出
した後にフィルタエレメントの交換作業を行なったり、
或いはハウジング本体に接続する配管に設けたバルブを
必ず閉じてからフィルタエレメントの交換作業を行なう
ようにしていた。In order to prevent the liquid from flowing out of the housing body, the filter element has to be replaced after the liquid in the liquid circuit has been completely taken out.
Alternatively, the valve provided on the pipe connected to the housing body is always closed before the replacement of the filter element is performed.
【０００５】しかし、液体回路中の液体を全部抜き出す
には多くの時間が必要で、フィルタエレメントの交換作
業の能率が非常に悪い。また配管途中のバルブを閉じる
のは、簡単そうであるが、以外に面倒で煩わしく、しか
も交換作業後にバルブを開くのを忘れて液体回路に重大
な異常を来す虞れがある。However, it takes a lot of time to completely remove the liquid from the liquid circuit, and the efficiency of the replacement operation of the filter element is very poor. Although closing a valve in the middle of piping seems to be easy, it is troublesome and troublesome, and there is a risk that a serious abnormality may occur in the liquid circuit due to forgetting to open the valve after replacement.
【０００６】本発明は前記事情に鑑みなされ、その目的
とするところは、フィルタエレメントの交換作業に際
し、ハウジング本体からヘッドカバーを抜き外せば、ハ
ウジング本体の導入口と導出口が自動的に閉じられ、液
体回路中の液体が残圧や位置的（高さ）エネルギーによ
ってハウジング本体内から溢れ出る心配がなくなると共
に、ヘッドカバーと一緒に使用済みフィルタエレメント
を取り出すことができ、新しいフィルタエレメントをヘ
ッドカバーと共にハウジング本体に装着すれば、前記導
入口と導出口が自動的に開かれて液体回路との導通が図
れ、そのまま液体濾過機能を発揮でき、従来のような液
体回路中の液体を全部抜き出す面倒や配管途中のバルブ
を開閉する煩わしさが一切不要で、非常に簡便かつ能率
良くフィルタエレメントの交換ができる液体濾過用フィ
ルタ装置を提供することにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to remove the head cover from the housing body when replacing the filter element, and the inlet and outlet of the housing body are automatically closed. The liquid in the liquid circuit does not have to worry about overflowing from the housing body due to residual pressure or positional (height) energy, and the used filter element can be taken out together with the head cover. If it is attached to the above, the introduction port and the outlet port are automatically opened to achieve continuity with the liquid circuit, the liquid filtration function can be exerted as it is, and it is troublesome to draw out all the liquid in the liquid circuit as in the related art, or during piping. There is no need to bother opening and closing the valve, making the filter element very simple and efficient. It is to provide a liquid filtration filter device capable bets exchange.
【０００７】[0007]
【課題を解決するための手段と作用】請求項１の発明の
液体濾過用フィルタ装置は、前記目的を達成するため
に、内部を濾過室とした有底縦型筒状をなし且つ上端部
にバルブ装着口を有すると共に周壁部に液体回路と接続
する導入口と導出口とを互いに周方向に離間して有した
ハウジング本体と、このハウジング本体のバルブ装着口
内に回転可能に装着され前記導入口と導出口と対応する
穴を有した円筒バルブと、下部にフィルタエレメントを
有した状態で前記ハウジング本体にバルブ装着口より挿
脱可能に且つその挿入した状態で所定角度回転操作した
位置で締結固定され前記フィルタエレメントをハウジン
グ本体の濾過室内に保持するヘッドカバーとを備え、そ
のヘッドカバーは、前記ハウジング本体のバルブ装着口
に挿入して固定位置へ所定角度回転操作することで前記
円筒バルブを追従回転させて開弁状態とすると共に、逆
に回転操作して挿脱位置に戻すと該円筒バルブを追従回
転させて閉弁状態とし、且つその円筒バルブの開弁状態
時のみ、該円筒バルブの穴をそれぞれ介して前記導入口
とハウジング本体の濾過室とを連通する導入流路と、該
濾過室のフィルタエレメント内と導出口とを連通する導
出流路とを有する構成としたことを特徴とする。According to a first aspect of the present invention, there is provided a filter device for liquid filtration, comprising: A housing body having a valve mounting port and having an inlet and an outlet connected to the liquid circuit on the peripheral wall portion and separated from each other in the circumferential direction; and the inlet port rotatably mounted in the valve mounting port of the housing body. And a cylindrical valve having a hole corresponding to the outlet, and a filter element at a lower portion, which can be inserted and removed from the valve mounting port in the housing main body with the filter element attached thereto, and fastened and fixed at a position rotated by a predetermined angle in the inserted state. A head cover for holding the filter element in the filtration chamber of the housing main body, wherein the head cover is inserted into a valve mounting opening of the housing main body and fixed at a fixed position. By rotating the cylinder valve by a predetermined angle, the cylindrical valve is rotated to open the valve, and when the cylinder is rotated to return to the insertion / removal position, the cylindrical valve is rotated to follow the valve to close the valve. Only when the valve is in an open state, an introduction flow path that communicates the introduction port with the filtration chamber of the housing body through each hole of the cylindrical valve, and a derivation that communicates the inside of the filter element of the filtration chamber with the exit port. And a flow path.
【０００８】こうした構成の液体濾過用フィルタ装置で
あれば、ハウジング本体内のフィルタエレメントを交換
する際、該ハウジング本体上部のヘッドカバーを固定位
置から挿脱位置に回転操作して上方に抜き出せば、これ
と一緒に使用済みフィルタエレメントも外部に取り出せ
るようになると共に、そのヘッドカバーの固定位置から
挿脱位置への回転操作に円筒バルブが追従回転して、ハ
ウジング本体の液体回路と接続する導入口と導出口を自
動的に閉じる閉弁状態となる。これで従来のような液体
回路中の液体を全部抜き出したり液体回路の配管途中の
バルブを閉じると言った面倒な操作を一切行わなくて
も、液体回路中の液体が残圧や位置的（高さ）エネルギ
ーによってハウジング本体内から溢れ出る心配がなくな
る。With the filter device for liquid filtration having such a configuration, when replacing the filter element in the housing main body, if the head cover on the upper portion of the housing main body is rotated from the fixed position to the insertion / removal position and pulled out upward, this can be achieved. The used filter element can be taken out together with the filter, and the cylindrical valve rotates following the rotation of the head cover from the fixed position to the insertion / removal position. The valve is in a closed state where the outlet is automatically closed. This allows the liquid in the liquid circuit to remain at a residual pressure or a positional (high) level without performing any troublesome operation such as extracting all the liquid from the liquid circuit or closing a valve in the piping of the liquid circuit. 3) There is no need to worry about spilling out of the housing body due to energy.
【０００９】また、新しいフィルタエレメントを下部に
装着したヘッドカバーをハウジング本体のバルブ装着口
より挿入して所定角度回転操作して締結固定すれば、そ
の新しいフィルタエレメントをハウジング本体の濾過室
内にセット保持できると共に、円筒バルブが追従回転し
て自動的に開弁状態となり、その円筒バルブの穴をそれ
ぞれ介してヘッドカバーの導入流路と導出流路とがハウ
ジングの導入口と導出口とに接続する状態となる。これ
で、バルブを開き忘れることがなく、外部の流体回路一
方から液体が前記導入口とバルブの穴と導入流路を介し
てハウジング本体の濾過室に流れ込み、そこでフィルタ
エレメントの外周から内側に濾材されながら流れて、前
記導出流路とバルブの穴と導出口を介して外部の流体回
路の他方に流出して行き、液体濾過機構を十分発揮でき
るようになる。Further, if the head cover having the new filter element mounted thereon is inserted from the valve mounting opening of the housing body and is rotated and fixed at a predetermined angle, the new filter element can be set and held in the filtration chamber of the housing body. At the same time, the cylindrical valve follows the rotation and automatically opens, and the inlet and outlet flow paths of the head cover are connected to the inlet and outlet of the housing through the holes of the cylindrical valve, respectively. Become. Thus, without forgetting to open the valve, the liquid flows from one of the external fluid circuits into the filtration chamber of the housing main body through the inlet, the hole of the valve, and the introduction flow path, where the filter medium flows inward from the outer periphery of the filter element. Then, the liquid flows out to the other of the external fluid circuit through the outlet flow passage, the hole of the valve, and the outlet, so that the liquid filtering mechanism can be sufficiently exhibited.
【００１０】請求項２の発明の液体濾過用フィルタ装置
は、前述のハウジング本体のバルブ装着口上に、円筒バ
ルブの抜け止めを行うと共に、内周面部に複数の略Ｌ字
形をなす鉤形溝を有したリングカバーを設ける一方、こ
のリングカバーの鉤形溝に摺嵌する突起部をヘッドカバ
ーに設けて、ヘッドカバーを該リングカバーを介しハウ
ジング本体のバルブ装着口に定位置より挿脱可能に挿入
して固定位置に所定角度回転操作可能としたことを特徴
とする。According to a second aspect of the present invention, there is provided a filter device for liquid filtration, wherein a plurality of substantially L-shaped hook-shaped grooves are formed on the inner peripheral surface of the housing to prevent the cylindrical valve from being removed. While the provided ring cover is provided, the head cover is provided with a projection which slides into the hook-shaped groove of the ring cover, and the head cover is inserted into the valve mounting opening of the housing body through the ring cover so as to be removably inserted from a fixed position. And can be rotated to a fixed position by a predetermined angle.
【００１１】これにて、ヘッドカバーのハウジング本体
への定位置からの挿脱操作並びにその挿脱位置からの固
定位置への所定角度の回転操作が楽にできて、円筒ｑバ
ルブの追従回転によるバルブ開閉動作が確実となる。With this arrangement, the head cover can be easily inserted into and removed from the housing main body from a fixed position, and can be easily rotated from the inserted and removed position to a fixed position by a predetermined angle. Operation is assured.
【００１２】請求項３の発明の液体濾過用フィルタ装置
は、前述のハウジング本体のバルブ装着口内面の導入口
及び導出口の開口周囲に、円筒バルブと液密に摺接する
ガスケットを装着したことを特徴とする。これにて、ハ
ウジング本体のバルブ装着口内面と円筒バルブとの間の
シールが確実となって、閉弁時の液体の漏れを確実に防
止できるようになる。According to a third aspect of the present invention, there is provided a filter device for liquid filtration, wherein a gasket which is in sliding contact with the cylindrical valve in a liquid-tight manner is mounted around the inlet and the outlet on the inner surface of the valve mounting opening of the housing body. Features. Thereby, the seal between the inner surface of the valve mounting opening of the housing body and the cylindrical valve is assured, and the leakage of liquid at the time of closing the valve can be reliably prevented.
【００１３】[0013]
【実施例】以下、本発明の液体濾過用フィルタ装置の一
実施例を図面により説明する。なお、図１は組立使用状
態の縦断面図で、図２はフィルタエレメントを引き出し
た交換作業状態の断面図、図３は分解斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a liquid filter device according to an embodiment of the present invention. FIG. 1 is a longitudinal sectional view in an assembled use state, FIG. 2 is a sectional view in a replacement work state in which a filter element is pulled out, and FIG. 3 is an exploded perspective view.
【００１４】まず、図中符号１はハウジング本体を示
す。このハウジング本体１は、金属製或いはポリエステ
ルやポリプロピレンやポリエチレンやナイロンやポリカ
ーボ等の熱可塑性高分子樹脂材より一体成形された剛性
強度に優れた厚肉な有底縦型筒状をなす容器で、その内
部が濾過室２とされている。First, reference numeral 1 in the drawing denotes a housing body. The housing main body 1 is a thick bottomed vertical cylindrical container having excellent rigidity and integrally formed from a thermoplastic polymer resin material such as metal or polyester, polypropylene, polyethylene, nylon, or polycarbonate. The inside is a filtration chamber 2.
【００１５】このハウジング本体１の上端には一回り大
径なヘッド部３が一体成形され、このヘッド部３の中央
に円形なバルブ装着口４が上方に開口して形成されてい
る。また、このヘッド部３の周壁に外部の液体回路の配
管Ａ，Ｂと接続する導入口５と導出口６とが互いに周方
向に間隔を存して、即ち左右両側に対向して、それぞれ
貫通する状態に形成されている。A head portion 3 having a diameter slightly larger than that of the housing body 1 is integrally formed at the upper end of the housing body 1, and a circular valve mounting opening 4 is formed at the center of the head portion 3 so as to open upward. In addition, an inlet 5 and an outlet 6 connected to the pipes A and B of the external liquid circuit are formed in the peripheral wall of the head portion 3 at intervals in the circumferential direction, that is, opposed to both left and right sides, and penetrate therethrough. It is formed in the state where it does.
【００１６】このハウジング本体１のヘッド部３のバル
ブ装着口４内の左右両側部に、縦溝付き凹部７がそれぞ
れ形成され、これら凹部７に突条付きガスケット８がそ
れぞれ上方から摺嵌して添設されている。これら両側の
ガスケット８はそれぞれ中央に前記導入口５及び導出口
６と合致連通する穴８ａを有して、該導入口５及び導出
口６の開口周囲に配置する。Recesses 7 having vertical grooves are formed on both left and right sides of the valve mounting opening 4 of the head portion 3 of the housing main body 1, and gaskets 8 with protrusions are respectively slidably fitted into these recesses 7 from above. It is attached. Each of the gaskets 8 on both sides has a hole 8a at the center thereof which communicates with the inlet 5 and the outlet 6, and is disposed around the openings of the inlet 5 and the outlet 6.
【００１７】こうしたガスケット８付きのバルブ装着口
４内に円筒バルブ９が回転可能に摺嵌して設けられてい
る。この円筒バルブ９は前記導入口５と導出口６とに対
応する一対の穴９ａ，９ｂを有し、この円筒バルブ９が
所定角度（例えば９０度）正逆回転することで、該穴９
ａ，９ｂが前記ガスケット８の穴８ａを介して導入口５
及び導出口６と合致連通する開弁状態になったり、該穴
９ａ，９ｂが導入口５及び導出口６から完全にずれる閉
弁状態になったりする。その開弁状態において円筒バル
ブ９の周面が前記ガスケット８に液密に接してシール状
態を保つようになる。また、この円筒バルブ９の上端内
周縁部には連係用の凹段部９ｃが形成されている。A cylindrical valve 9 is rotatably slidably provided in the valve mounting port 4 with the gasket 8. The cylindrical valve 9 has a pair of holes 9a and 9b corresponding to the inlet port 5 and the outlet port 6, respectively.
a, 9b are connected to the inlet 5 through the hole 8a of the gasket 8.
And the valve 9 may be in an open state in which it communicates with the outlet 6, or the holes 9a and 9b may be completely closed from the inlet 5 and the outlet 6. In the open state, the peripheral surface of the cylindrical valve 9 comes into contact with the gasket 8 in a liquid-tight manner to maintain a sealed state. A concave step 9c for linking is formed on the inner peripheral edge of the upper end of the cylindrical valve 9.
【００１８】前記ハウジング本体１のヘッド部３の上面
凹部に一部嵌合してリングカバー１０が複数本（例えば
４本）のボルト１１により位置決め固定されている。こ
のリングカバー１０は肉厚環状体で、前記バルブ装着口
４内の円筒バルブ９の上方への抜止めを行う。また、こ
のリングカバー１０は内周面部に複数（例えば３個）の
略Ｌ字形をなす鉤形溝１２が周方向に等間隔を存して形
成されている。The ring cover 10 is positioned and fixed by a plurality of (for example, four) bolts 11 by partially fitting into the upper surface recess of the head portion 3 of the housing body 1. The ring cover 10 is a thick annular body, and prevents the cylindrical valve 9 in the valve mounting port 4 from being pulled upward. The ring cover 10 has a plurality of (for example, three) substantially L-shaped hook-shaped grooves 12 formed on the inner peripheral surface thereof at equal intervals in the circumferential direction.
【００１９】こうしたハウジング組立体（ハウジングア
ッセンブリ）に対し脱着交換可能なフィルタエレメント
２１付きヘッドカバー３１が備えられている。なお、そ
のフィルタエレメント２１は、多数の孔を有した内筒コ
ア２２と、濾過面積を多く確保すべくプリーツ状（ジグ
ザグ状）に多数折曲した状態で前記内筒コア２２の外周
に囲設された濾材２３と、これらの上下端に被嵌された
底板２４と流通口２５ａ付き天板２５とからなるカート
リッジタイプのもである。A head cover 31 with a filter element 21 which can be attached to and detached from such a housing assembly (housing assembly) is provided. The filter element 21 is provided around an inner cylindrical core 22 having a large number of holes and a plurality of pleated (zigzag) bent outer surfaces around the inner cylindrical core 22 in order to secure a large filtration area. The cartridge type includes a filter medium 23, a bottom plate 24 fitted to the upper and lower ends thereof, and a top plate 25 with a flow opening 25a.
【００２０】前記ヘッドカバー３１は、天板部３２と、
この下側の段付き筒体部３３と、更にその下端のフィル
タ取付口部３４とを同一軸線的に連設して備えた一体成
形品である。その下端のフィルタ取付口部３４に対し前
記フィルタエレメント２１が、この天板２５の流通口２
５ａをＯリング等のパッキン２６を介し液密に嵌着する
ことで取付けられている。The head cover 31 includes a top plate 32 and
The lower stepped cylindrical body portion 33 and the filter mounting opening portion 34 at the lower end thereof are integrally formed so as to be coaxially connected. The filter element 21 is connected to the filter mounting port 34 at the lower end thereof by the flow port 2 of the top plate 25.
5a is attached by being fitted in a liquid-tight manner via a packing 26 such as an O-ring.
【００２１】このヘッドカバー３１が、前記フィルタエ
レメント２１を下部に取付けた状態で、前記ハウジング
本体１のヘッド部３のバルブ装着口４にリングカバー１
０を介し上方より挿脱可能に、且つその挿入した位置か
ら所定角度回転操作した位置で複数本（例えば３本）の
ボルト３５によりリングカバー１０に締結固定でき、こ
れで前記フィルタエレメント２１をハウジング本体１の
濾過室２内に垂下保持すると共に天板部３２でバルブ装
着口４上を塞げるようになっている。When the head cover 31 has the filter element 21 attached to the lower portion, the ring cover 1 is attached to the valve mounting port 4 of the head portion 3 of the housing body 1.
0, can be inserted and removed from above, and can be fastened and fixed to the ring cover 10 by a plurality of (for example, three) bolts 35 at a position rotated by a predetermined angle from the inserted position. The main body 1 is suspended in the filtration chamber 2 and the top plate 32 closes the valve mounting port 4.
【００２２】ここで、前記ヘッドカバー３１の段付き筒
体部３３の上段大径部分の外周には、複数個（例えば３
個）の突起部３６が周方向に等間隔を存して設けられ、
これら突起部３６を前記リングカバー１０の各鉤形溝１
２に摺嵌するようにすることで、ヘッドカバー３１がハ
ウジング本体１のバルブ装着口４に対し常に定位置より
挿脱可能で、且つその挿入した位置から固定位置に所定
角度（例えば９０度）回転操作可能で、そこで上方に抜
け止めされると共に前記ボルト３５による締結固定が可
能となっている。Here, a plurality of (for example, 3) are provided on the outer periphery of the upper large diameter portion of the stepped cylindrical portion 33 of the head cover 31.
) Are provided at equal intervals in the circumferential direction,
These projections 36 are connected to the respective hook-shaped grooves 1 of the ring cover 10.
2, the head cover 31 can always be inserted into and removed from the valve mounting port 4 of the housing body 1 from a fixed position, and can be rotated by a predetermined angle (for example, 90 degrees) from the inserted position to a fixed position. It is operable, where it is prevented from falling off and can be fastened and fixed by the bolt 35.
【００２３】また、前記ヘッドカバー３１は前記一個の
突起部３６の下側に小突起部３７を有し、このヘッドカ
バー３１を前述の如くヘッド部３のバルブ装着口４にリ
ングカバー１０を介し定位置から挿入することで、該小
突起部３７が前記円筒バルブ９の連係用の凹段部９ｃに
係合し、その状態でヘッドカバー３１を回転操作すると
該円筒バルブ９が一緒に追従回転するようになってい
る。つまり、ヘッドカバー３１をバルブ装着口４に挿入
してボルト３５による固定位置に所定角度回転操作する
ことで、円筒バルブ９が追従回転して、この穴９ａ，９
ｂが前記ガスケット８の穴８ａを介して導入口５及び導
出口６と合致連通した開弁状態となり、逆にヘッドカバ
ー３１を回転操作して挿脱位置（定位置）に戻すと、該
穴９ａ，９ｂが導入口５及び導出口６から完全にずれた
閉弁状態となる構成である。The head cover 31 has a small protrusion 37 below the one protrusion 36, and the head cover 31 is fixed to the valve mounting port 4 of the head 3 via the ring cover 10 as described above. When the head cover 31 is rotated in this state, the small protrusion 37 is engaged with the concave step 9c for coordination of the cylindrical valve 9 so that the cylindrical valve 9 rotates together with the cylindrical valve 9. Has become. That is, when the head cover 31 is inserted into the valve mounting opening 4 and rotated by a predetermined angle to a position fixed by the bolt 35, the cylindrical valve 9 is rotated to follow, and the holes 9a, 9
When the head cover 31 is returned to the insertion / removal position (fixed position) by rotating the head cover 31, the hole 9 a is closed. , 9b are in a valve-closed state completely displaced from the inlet 5 and the outlet 6.
【００２４】更に、そのヘッドカバー３１の段付き筒体
部３３の下段小径部分に、その一側部を凹陥してなる導
入流路３８と、前記フィルタ取付口３４から中心部を通
って他側部に開口する導出流路３９とが形成されてい
る。この導入流路３８と導出流路３９とがヘッドカバー
３１のバルブ装着口４への挿入により前記円筒バルブ９
の穴９ａ，９ｂに接続し、この状態で該ヘッドカバー３
１と共に円筒バルブ９を開弁位置に所定角度回動操作し
た時のみ、該導入流路３８が前記導入口５とハウジング
本体１の濾過室２（フィルタエレメント２１の外周空
間）とを連通すると共に、導出流路３９が濾過室２のフ
ィルタエレメント２１内と導出口６とを連通するように
なっている。Further, an introduction flow path 38 having one side recessed in the lower small diameter portion of the stepped cylindrical portion 33 of the head cover 31, and another side portion passing through the center from the filter mounting port 34. And a lead-out flow channel 39 which is open to the outside. The introduction flow path 38 and the discharge flow path 39 are connected to the cylindrical valve 9 by inserting the head cover 31 into the valve mounting port 4.
Holes 9a, 9b of the head cover 3 in this state.
Only when the cylindrical valve 9 is rotated to the opening position by a predetermined angle together with the first valve 1, the introduction flow path 38 communicates the introduction port 5 with the filtration chamber 2 (the outer peripheral space of the filter element 21) of the housing body 1. The outlet channel 39 communicates with the inside of the filter element 21 of the filtration chamber 2 and the outlet port 6.
【００２５】なお、前記ヘッドカバー３１の天板部３２
の上面にはＬ字形に折曲した回転操作用の取手４０が一
体に突設されている。また、そのヘッドカバー３１の段
付き筒体部３３の上段大径部分の外周にはＯリング等の
パッキン４１が設けられ、これが前記円筒バルブ１０の
上端内周面と液密に接合して液体の上方への漏れを防止
するようになっている。The top plate 32 of the head cover 31
A handle 40 for rotating operation, which is bent in an L-shape, is integrally provided on the upper surface of the first member. Further, a packing 41 such as an O-ring is provided on the outer periphery of the upper large-diameter portion of the stepped cylindrical body portion 33 of the head cover 31, and this is joined to the inner peripheral surface at the upper end of the cylindrical valve 10 in a liquid-tight manner to form a liquid. It is designed to prevent upward leakage.
【００２６】こうした構成の液体濾過用フィルタ装置で
は、フィルタエレメント２１を下部に装着したヘッドカ
バー３１をハウジング本体１のヘッド部３のバルブ装着
口４にリングカバー１０を介し定位置より挿入して所定
角度回転操作して締結固定すれば、該フィルタエレメン
ト２１がハウジング本体１の濾過室２内にセット保持さ
れると共に、円筒バルブ９が追従回転して自動的に開弁
状態となり、その円筒バルブ９の穴９ａ，９ｂをそれぞ
れ介してヘッドカバー３１の導入流路３８と導出流路３
９とがハウジング本体１の導入口５と導出口６とに接続
する。In the filter device for liquid filtration having such a configuration, the head cover 31 with the filter element 21 mounted on the lower portion is inserted into the valve mounting port 4 of the head portion 3 of the housing body 1 from the fixed position via the ring cover 10 and is fixed at a predetermined angle. When the filter element 21 is rotated and fastened and fixed, the filter element 21 is set and held in the filtration chamber 2 of the housing main body 1, and the cylindrical valve 9 is rotated to follow and automatically opens, and the cylindrical valve 9 is opened. The inflow channel 38 and the outflow channel 3 of the head cover 31 through the holes 9a and 9b, respectively.
9 are connected to the inlet 5 and the outlet 6 of the housing body 1.
【００２７】これで、外部の流体回路の一方の配管Ａか
ら導入される圧油等の液体が前記導入口５とバルブ９の
穴９ａと導入流路３８を介してハウジング本体１の濾過
室２内のフィルタエレメント２１外周空間に流れ込み、
そこから該フィルタエレメント２１の濾材２３により液
体中のスラッジやごみ等の不純物が濾過捕集され、清浄
化された液体が濾材２３の内側に流れて、その上部天板
２５の流通口２５ａよりフィルタ取付口部３４、導出流
路３９、バルブ９の穴９ｂ、導出口６を介して外部の流
体回路の他方の配管Ｂに流出して行くようになる。これ
で流体回路中の液体の濾過するようになる。Thus, liquid such as pressure oil introduced from one pipe A of the external fluid circuit flows through the inlet 5, the hole 9 a of the valve 9, and the introduction flow path 38, and the filtration chamber 2 of the housing body 1. Flows into the outer peripheral space of the filter element 21 in the
From there, impurities such as sludge and dust in the liquid are filtered and collected by the filter medium 23 of the filter element 21, and the purified liquid flows inside the filter medium 23, and is filtered through the circulation port 25 a of the upper top plate 25. The fluid flows out to the other pipe B of the external fluid circuit via the mounting port portion 34, the outlet channel 39, the hole 9b of the valve 9, and the outlet port 6. This causes the liquid in the fluid circuit to be filtered.
【００２８】ここで、前記フィルタエレメント２１をあ
る期間使用した後に交換する場合は、前記ヘッドカバー
３１のボルト３５を外し、取手４０を持って該ヘッドカ
バー３１を固定位置から前回とは逆に所定角度回転操作
して挿脱位置に移動させ、そこから上方に引っ張り上げ
て抜き出す。これで該ヘッドカバー３１と一緒に使用済
みフィルタエレメント２１も外部に取り出せるようにな
る。Here, when replacing the filter element 21 after using it for a certain period, the bolt 35 of the head cover 31 is removed, and the head cover 31 is held by the handle 40 and the head cover 31 is rotated from the fixed position by a predetermined angle in reverse to the previous time. Operate to move to the insertion / removal position, and pull it upward to remove it. Thus, the used filter element 21 can be taken out together with the head cover 31.
【００２９】しかも、そのヘッドカバー３１の前記固定
位置から挿脱位置への回転操作により円筒バルブ９が追
従回転して、この穴９ａ，９ｂがハウジング本体１の導
入口５と導出口６とから完全にずれる。即ち、円筒バル
ブ９がヘッドカバー３１に連動して自動的に閉弁状態と
なる。これで従来のような液体回路中の液体を全部抜き
出したり液体回路の配管途中のバルブを閉じると言った
面倒な操作を一切行わなくても、液体回路中の液体が残
圧や位置的（高さ）エネルギーによってハウジング本体
１内から溢れ出る心配がなくなる。In addition, the cylindrical valve 9 rotates following the rotation of the head cover 31 from the fixed position to the insertion / removal position, and the holes 9a and 9b are completely separated from the inlet 5 and the outlet 6 of the housing body 1. Deviate. That is, the cylindrical valve 9 automatically closes in conjunction with the head cover 31. This allows the liquid in the liquid circuit to remain at a residual pressure or a positional (high) level without performing any troublesome operation such as extracting all the liquid from the liquid circuit or closing a valve in the piping of the liquid circuit. (3) There is no need to worry about spilling out of the housing body 1 due to energy.
【００３０】そして、新しいフィルタエレメント２１を
下部に装着したヘッドカバー３１をハウジング本体１の
バルブ装着口４にリングカバー１０を介し定位置より挿
入して所定角度回転操作して締結固定すれば、該新しい
フィルタエレメント２１をハウジング本体１の濾過室２
内にセット保持できると同時に、円筒バルブ９が追従回
転して自動的に開弁状態となって、元の使用状態に復帰
する。これで、バルブを開き忘れることがなく、外部の
流体回路中の液体をハウジング本体１の濾過室２に導入
してフィルタエレメント２１により濾過できるようにな
る。Then, the head cover 31 with the new filter element 21 mounted on the lower portion is inserted into the valve mounting port 4 of the housing body 1 from the fixed position via the ring cover 10 and rotated by a predetermined angle to be fastened and fixed. The filter element 21 is connected to the filtration chamber 2 of the housing body 1.
At the same time, the cylindrical valve 9 follows the rotation and automatically opens to return to the original use state. Thus, the liquid in the external fluid circuit can be introduced into the filtration chamber 2 of the housing body 1 and filtered by the filter element 21 without forgetting to open the valve.
【００３１】また、前記ハウジング本体１のバルブ装着
口４上に取り付けたリングカバー１０の複数の鉤形溝１
２に、ヘッドカバー３１の突起部３６が摺嵌するように
しているので、そのヘッドカバー３１のハウジング本体
１のバルブ装着口４への定位置での挿脱操作並びにその
挿脱位置からの固定位置への所定角度の回転操作が楽に
できて、円筒バルブ１０の追従回転によるバルブ開閉動
作が確実となる。The plurality of hook-shaped grooves 1 of the ring cover 10 mounted on the valve mounting port 4 of the housing body 1
2, the protrusion 36 of the head cover 31 is slidably fitted, so that the head cover 31 can be inserted into and removed from the valve mounting port 4 of the housing body 1 at a fixed position, and from the insertion and removal position to a fixed position. The rotation operation at the predetermined angle can be easily performed, and the valve opening / closing operation by the follow-up rotation of the cylindrical valve 10 is ensured.
【００３２】更に、ハウジング本体１のバルブ装着口４
内面の導入口５及び導出口６の開口周囲に、円筒バルブ
９と液密に摺接するガスケット８を装着したことによ
り、バルブ装着口４内面と円筒バルブ９との間のシール
が確実となって、閉弁時の液体の漏れを更に一層確実に
防止できるようになる。Further, a valve mounting port 4 of the housing body 1 is provided.
By mounting the gasket 8 which comes into sliding contact with the cylindrical valve 9 in a liquid-tight manner around the openings 5 and 6 on the inner surface, the seal between the inner surface of the valve mounting opening 4 and the cylindrical valve 9 is ensured. Thus, liquid leakage at the time of closing the valve can be more reliably prevented.
【００３３】なお、そのリングカバー１０は必ずしも設
ける必要はなく、例えば、円筒バルブ９の抜け止め段部
や、ヘッドカバー３１の突起部３６を案内係合する鉤形
溝１２を、ハウジング本体１のヘッド部３のバルブ装着
口４内上縁部に直接形成した構成としても良い。その
他、本発明の要旨を逸脱しない範囲であれば種々変更可
能である。The ring cover 10 is not necessarily provided. For example, the hook-shaped groove 12 for guiding and engaging the retaining step of the cylindrical valve 9 and the projection 36 of the head cover 31 is provided on the head of the housing body 1. It may be configured such that it is formed directly on the upper edge of the valve mounting opening 4 of the part 3. In addition, various changes can be made without departing from the spirit of the present invention.
【００３４】[0034]
【発明の効果】本発明の液体濾過用フィルタ装置は、前
述の如く構成したので、フィルタエレメントの交換作業
に際し、ハウジング本体からヘッドカバーを抜き外せ
ば、ハウジング本体の導入口と導出口が円筒バルブによ
り自動的に閉じられ、液体回路中の液体が残圧や位置的
（高さ）エネルギーによってハウジング本体内から溢れ
出る心配がなく、ヘッドカバーと一緒に使用済みフィル
タエレメントを取り出すことができ、新しいフィルタエ
レメントをヘッドカバーと共にハウジング本体に装着す
れば、前記導入口と導出口が自動的に開かれて液体回路
との導通が図れ、そのまま液体濾過機能を発揮でき、従
来のような液体回路中の液体を全部抜き出す面倒や配管
途中のバルブを開閉する煩わしさが一切不要で、非常に
簡便かつ能率良くフィルタエレメントの交換ができる。The filter device for liquid filtration of the present invention is constructed as described above. If the head cover is removed from the housing body when replacing the filter element, the inlet and outlet of the housing body are formed by cylindrical valves. The new filter element can be taken out together with the head cover without being closed automatically without the liquid in the liquid circuit overflowing from inside the housing body due to residual pressure or positional (height) energy. Is attached to the housing body together with the head cover, the inlet and outlet are automatically opened to establish continuity with the liquid circuit, the liquid filtration function can be exhibited as it is, and all of the liquid in the liquid circuit as in the related art can be used. There is no need to take out the trouble of extracting or opening and closing the valve in the middle of the piping, making it extremely simple and efficient. You can replace the filter element.
【図１】本発明の液体濾過用フィルタ装置の一実施例を
示す組立使用状態の縦断面図。FIG. 1 is a vertical sectional view showing an embodiment of a filter device for liquid filtration according to the present invention in an assembled and used state.
【図２】同上実施例のフィルタエレメントを引き出した
交換作業状態の断面図。FIG. 2 is a cross-sectional view of a replacement state in which the filter element of the embodiment is pulled out.
【図３】同上実施例の分解斜視図。FIG. 3 is an exploded perspective view of the embodiment.
１…ハウジング本体、２…濾過室、４…バルブ装着口、
５…導入口、６…導出口、８…ガスケット、９ａ，９ｂ
…穴、９…円筒バルブ、１０…リングカバー、１２…鉤
形溝、２１…フィルタエレメント、３１…ヘッドカバ
ー、３６…突起部、３８…導入流路、３９…導出流路。DESCRIPTION OF SYMBOLS 1 ... Housing main body, 2 ... Filtration chamber, 4 ... Valve mounting port,
5 ... Inlet, 6 ... Outlet, 8 ... Gasket, 9a, 9b
... Hole, 9 ... Cylindrical valve, 10 ... Ring cover, 12 ... Hook-shaped groove, 21 ... Filter element, 31 ... Head cover, 36 ... Protrusion, 38 ... Introduction channel, 39 ... Outflow channel.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B01D 27/08 B01D 29/11 B01D 35/02 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) B01D 27/08 B01D 29/11 B01D 35/02
Claims (3)
且つ上端部にバルブ装着口を有すると共に周壁部に液体
回路と接続する導入口と導出口とを互いに周方向に離間
して有したハウジング本体と、このハウジング本体のバ
ルブ装着口内に回転可能に装着され前記導入口と導出口
と対応する穴を有した円筒バルブと、下部にフィルタエ
レメントを有した状態で前記ハウジング本体にバルブ装
着口より挿脱可能で且つその挿入した状態で所定角度回
転操作した位置で締結固定され前記フィルタエレメント
をハウジング本体の濾過室内に保持するヘッドカバーと
を備え、 そのヘッドカバーは、前記ハウジング本体のバルブ装着
口に挿入して固定位置へ所定角度回転操作することで前
記円筒バルブを追従回転させて開弁状態とすると共に、
逆に回転操作して挿脱位置に戻すと該円筒バルブを追従
回転させて閉弁状態とし、且つその円筒バルブの開弁状
態時のみ、該円筒バルブの穴をそれぞれ介して前記導入
口とハウジング本体の濾過室とを連通する導入流路と、
該濾過室のフィルタエレメント内と導出口とを連通する
導出流路とを有する構成としたことを特徴とする液体濾
過用フィルタ装置。An inlet and an outlet for connecting a liquid circuit to a liquid circuit are formed on a peripheral wall of a vertical cylinder having a bottom as a filtration chamber and having a valve mounting port at an upper end thereof. A housing valve, a cylindrical valve rotatably mounted in a valve mounting port of the housing body and having a hole corresponding to the inlet port and the outlet port, and a filter element at a lower portion of the housing body. A head cover that can be inserted into and removed from the valve mounting opening, is fastened and fixed at a position rotated by a predetermined angle in the inserted state, and holds the filter element in the filtration chamber of the housing main body. Inserting into the mounting port and rotating the cylinder valve to the fixed position by a predetermined angle causes the cylindrical valve to follow and rotate to open the valve,
Conversely, when the cylindrical valve is rotated to return to the insertion / removal position, the cylindrical valve is rotated to follow the closed state, and only when the cylindrical valve is in the open state, the inlet and the housing are respectively inserted through the holes of the cylindrical valve. An introduction flow path communicating with the filtration chamber of the main body,
A filter device for liquid filtration, characterized by having a lead-out flow path that communicates the inside of a filter element of the filtration chamber with a lead-out port.
において、ハウジング本体のバルブ装着口上に、円筒バ
ルブの抜け止めを行うと共に、内周面部に複数の略Ｌ字
形をなす鉤形溝を有したリングカバーを設ける一方、こ
のリングカバーの鉤形溝に摺嵌する突起部をヘッドカバ
ーに設けて、ヘッドカバーを該リングカバーを介しハウ
ジング本体のバルブ装着口に定位置より挿脱可能に挿入
して固定位置に所定角度回転操作可能としたことを特徴
とする液体濾過用フィルタ装置。2. The filter device for liquid filtration according to claim 1, further comprising a plurality of substantially L-shaped hook-shaped grooves formed on the inner peripheral surface of the valve mounting opening of the housing body. The head cover is provided with a protrusion that slides into the hook-shaped groove of the ring cover, and the head cover is removably inserted from a fixed position into the valve mounting opening of the housing body through the ring cover. A filter device for liquid filtration, wherein the filter device can be rotated to a fixed position by a predetermined angle.
タ装置において、ハウジング本体のバルブ装着口内面の
導入口及び導出口の開口周囲に、円筒バルブと液密に摺
接するガスケットを装着したことを特徴とする液体濾過
用フィルタ装置。3. The filter device for liquid filtration according to claim 1, wherein a gasket which is in sliding contact with the cylindrical valve in a liquid-tight manner is mounted around the inlet and the outlet on the inner surface of the valve mounting port of the housing body. A filter device for liquid filtration, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00159694A JP3320185B2 (en) | 1994-01-12 | 1994-01-12 | Filter device for liquid filtration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00159694A JP3320185B2 (en) | 1994-01-12 | 1994-01-12 | Filter device for liquid filtration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07194905A JPH07194905A (en) | 1995-08-01 |
| JP3320185B2 true JP3320185B2 (en) | 2002-09-03 |
Family
ID=11505890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00159694A Expired - Lifetime JP3320185B2 (en) | 1994-01-12 | 1994-01-12 | Filter device for liquid filtration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3320185B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6068770A (en) * | 1996-07-12 | 2000-05-30 | Millipore Corporation | Disposable separation module with quick connect capability |
| NZ534330A (en) * | 2002-02-19 | 2006-08-31 | Access Business Group Int Llc | Removable closure assembly for a water treatment system |
| DE10309428B4 (en) * | 2003-03-05 | 2005-09-15 | Ultrafilter International Ag | filter |
| JP2014094337A (en) * | 2012-11-08 | 2014-05-22 | Shinjiro Osawa | Water purifier |
| WO2015166569A1 (en) * | 2014-05-01 | 2015-11-05 | 信二郎 大澤 | Water purifier |
| CN106673135B (en) * | 2016-12-08 | 2023-05-02 | 厦门唯科健康产业有限公司 | Household water purifier |
| WO2019184887A1 (en) * | 2018-03-26 | 2019-10-03 | 佛山市顺德区阿波罗环保器材有限公司 | Water purifier and filter cartridge device thereof |
| JP6571833B1 (en) * | 2018-05-02 | 2019-09-04 | 日機装株式会社 | Air trap chamber and extracorporeal circuit |
-
1994
- 1994-01-12 JP JP00159694A patent/JP3320185B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07194905A (en) | 1995-08-01 |
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