JP2005349283A - Cartridge type filter - Google Patents

Cartridge type filter Download PDF

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Publication number
JP2005349283A
JP2005349283A JP2004171865A JP2004171865A JP2005349283A JP 2005349283 A JP2005349283 A JP 2005349283A JP 2004171865 A JP2004171865 A JP 2004171865A JP 2004171865 A JP2004171865 A JP 2004171865A JP 2005349283 A JP2005349283 A JP 2005349283A
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fixed cap
filtration cartridge
cartridge
type filter
inclined groove
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JP2004171865A
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Japanese (ja)
Inventor
Yoshitaka Ichihashi
義孝 市橋
Akiyo Suzuki
陽代 鈴木
Haruji Iwakura
晴次 岩倉
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Organo Corp
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Organo Corp
Japan Organo Co Ltd
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Priority to JP2004171865A priority Critical patent/JP2005349283A/en
Publication of JP2005349283A publication Critical patent/JP2005349283A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153—Anti-leakage or anti-return valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/301—Details of removable closures, lids, caps, filter heads
    • B01D2201/302—Details of removable closures, lids, caps, filter heads having inlet or outlet ports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4015—Bayonet connecting means

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Water Treatment By Sorption (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cartridge type filter that reduces necessary force in inserting a filtration cartridge into a fixed cap to connect and withdrawing the same from the fixed cap. <P>SOLUTION: An inclined trough 14 and an inclined protruded piece 33 which are interlocked with each other are installed to the fixed cap 10 and the filtration cartridge 20. Thus, the filtration cartridge 20 is proceeded axially and both the filtration cartridge and the fixed cap can be inserted and connected with each other by rotating the filtration cartridge 20 against the fixed cap 10. In withdrawing the filtration cartridge 20, it is rotated reversely when connected. Thus, the necessary force in the case of insertion and connection and in the case of withdrawal is largely reduced as compared to the necessary force in the conventional case of directly pushing axially or withdrawing the filtration cartridge 20. Therefore, the load added to the piping and the like at the working is also reduced. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、流体（液体又は気体）をろ過処理するろ過器に関し、より詳しくは、交換可能なろ過カートリッジを備え、例えば、自動販売機用、医療用、工場生産用、卓上用、アンダーシンク用のように、取り付けスペースが制限される箇所等に使用されるカートリッジ式ろ過器に関する。   The present invention relates to a filter for filtering a fluid (liquid or gas), and more particularly, includes a replaceable filter cartridge, for example, for vending machines, medical use, factory production, desktop use, and undersink use. As described above, the present invention relates to a cartridge type filter used in places where the installation space is limited.

例えば、自動販売機内に設けられるカートリッジ式ろ過器として、特許文献１に示されたものが知られている。その概略構造を図４に基づき説明すると、かかるカートリッジ式ろ過器１００は、流入路１１１及び流出路１１２を備え、原水（被処理流体）流入用の配管及びろ過処理したろ過水（処理流体）を流出させるための配管にそれぞれ接続さて配設される固定キャップ１１０と、固定キャップ１１０の筒部に装着されるろ過カートリッジ１２０とを備えて構成される。ろ過カートリッジ１２０は、略中央部に集液口１３１を備えた鍔状の集液体１３０と、該集液体１３０の周縁に一体に固定される筒状のハウジング１４０と、集液体１３０に固着されてハウジング１４０内に配設されるろ過体１５０とを備えている。   For example, what is shown in patent document 1 is known as a cartridge type filter provided in a vending machine. The schematic structure will be described with reference to FIG. 4. The cartridge type filter 100 includes an inflow path 111 and an outflow path 112, and supplies raw water (processed fluid) inflow piping and filtered filtered water (processed fluid). A fixed cap 110 is provided that is connected to a pipe for flowing out, and a filtration cartridge 120 that is attached to a cylindrical portion of the fixed cap 110. The filtration cartridge 120 is fixed to the liquid collection unit 130, a bowl-shaped liquid collection unit 130 having a liquid collection port 131 at a substantially central portion, a cylindrical housing 140 fixed integrally to the periphery of the liquid collection unit 130, and the liquid collection unit 130. And a filter body 150 disposed in the housing 140.

ろ過カートリッジ１２０は、固定キャップ１１０の開口端から軸方向に直線的に押し込み、集液口１３１を固定キャップ１１０の流出路１１２に連接した中継アダプタ１１３にシール部材としてのＯリング１６０を介して嵌合させると共に、ハウジング１４０の上部を固定キャップ１１０の内周面にシール部材としてのＯリング１７０を介して嵌合させている。図４に示した例では、集液体１３０の周縁にハウジング１４０を固着しており、集液体１３０とハウジング１４０の上部が、固定キャップ１１０への接続部となっているが、集液体１３０として、周縁に、ハウジングの一部となる筒状部が予め一体成形されているタイプもあり、この場合には、当該集液体１３０のみが接続部となる。なお、このように集液体の筒状部がハウジングの一部を兼ねるタイプでは、ハウジングの本体は、該筒状部に溶着などにより一体化される。
特開平１１−１５６１１２号公報 The filtration cartridge 120 is linearly pushed in from the opening end of the fixed cap 110 in the axial direction, and the liquid collection port 131 is fitted to the relay adapter 113 connected to the outflow path 112 of the fixed cap 110 via an O-ring 160 as a seal member. At the same time, the upper portion of the housing 140 is fitted to the inner peripheral surface of the fixed cap 110 via an O-ring 170 as a seal member. In the example shown in FIG. 4, the housing 140 is fixed to the periphery of the liquid collection 130, and the upper part of the liquid collection 130 and the housing 140 is a connection portion to the fixed cap 110. There is also a type in which a cylindrical portion that is a part of the housing is integrally formed on the periphery in advance, and in this case, only the liquid collection 130 is a connection portion. In the type in which the cylindrical portion of the liquid collection also serves as a part of the housing in this way, the main body of the housing is integrated with the cylindrical portion by welding or the like.
JP-A-11-156112

上記したように、固定キャップ１１０とろ過カートリッジ１２０の接続部との間、すなわち、図４では、中継アダプタ１１３と集液口１３１との間及びハウジング１４０の上部と固定キャップ１１０の内周面との間には、それぞれ、被処理流体と処理流体との混合を防止するため、及び流体の外部への漏れを防止するために、シール部材としてのＯリング１６０やＯリング１７０を介装している。しかも、シール性を高く保つために、これらのシール部材は比較的硬い材料が用いられている。このため、ろ過カートリッジ１２０を固定キャップ１１０に軸方向に直線的に押し込んで嵌合させたり、あるいは、交換のために固定キャップ１１０からろ過カートリッジ１２０を引き抜く際には大きな力を必要とし、作業性の点で改善の余地があった。また、固定キャップ１１０の流入路１１１や流出路１１２に接続される配管に嵌合時や引き抜き時に大きな荷重がかかってしまうことも問題点として指摘されていた。   As described above, between the fixed cap 110 and the connection portion of the filtration cartridge 120, that is, in FIG. 4, between the relay adapter 113 and the liquid collection port 131, the upper portion of the housing 140, and the inner peripheral surface of the fixed cap 110. In order to prevent mixing of the fluid to be processed and the processing fluid, and to prevent leakage of the fluid to the outside, an O-ring 160 or an O-ring 170 as a seal member is interposed between the two. Yes. Moreover, in order to keep the sealing performance high, these sealing members are made of a relatively hard material. For this reason, when the filtration cartridge 120 is linearly pushed into the fixed cap 110 to be fitted, or when the filtration cartridge 120 is pulled out from the fixed cap 110 for replacement, a large force is required. There was room for improvement. In addition, it has been pointed out as a problem that a large load is applied to the pipe connected to the inflow path 111 and the outflow path 112 of the fixed cap 110 when fitting or withdrawing.

本発明は上記に鑑みなされたものであり、ろ過カートリッジを固定キャップに嵌合して接続する際や引き抜く際に必要となる力を軽減し、作業時に配管にかかる荷重も小さくできるカートリッジ式ろ過器を提供することを課題とする。   The present invention has been made in view of the above, and a cartridge-type filter that can reduce the force required when connecting and pulling out a filtration cartridge to a fixed cap, and can reduce the load applied to piping during work. It is an issue to provide.

上記課題を解決するため、請求項１記載の本発明では、一端開口の筒状に形成されていると共に、被処理流体の流入路及び処理流体の流出路を備え、この流入路及び流出路が配管に接続されて配設される固定キャップと、
前記固定キャップに密閉的に接続される接続部を備え、内部に収容されるろ過体を隔てた内側が前記流入路及び流出路の一方と連通され、外側が他方と連通されるろ過カートリッジと、を具備するカートリッジ式ろ過器であって、
前記固定キャップと前記接続部とのいずれか一方に傾斜溝が、他方に該傾斜溝に係合する傾斜突片が形成されており、ろ過カートリッジを回転させて固定キャップに嵌合装着可能であることを特徴とするカートリッジ式ろ過器を提供する。
請求項２記載の本発明では、前記固定キャップが、内周面に、その中途から開口端に至るまで一方向に傾斜させて刻設された傾斜溝を備え、
前記接続部が、外周面に、前記傾斜溝の開口端から挿入されて係合し、ろ過カートリッジを回転させることにより該傾斜溝に案内される傾斜突片を備えていることを特徴とする請求項１記載のカートリッジ式ろ過器を提供する。
請求項３記載の本発明では、前記接続部は、二重筒構造に形成され、内筒部が前記固定キャップの流入路及び流出路のうちの一方に、外筒部が前記固定キャップの流入路及び流出路のうちの他方を形成する固定キャップの内周面に、それぞれシール部材を介して密閉的に接続される構成であり、
前記傾斜溝は、回転終了時点で、前記内筒部及び外筒部がそれぞれ前記シール部材を介して密閉的に接続される位置に至る長さで形成されていることを特徴とする請求項２記載のカートリッジ式ろ過器を提供する。 In order to solve the above-described problems, the present invention according to claim 1 is formed in a cylindrical shape having one end opening, and further includes an inflow path for a fluid to be processed and an outflow path for a processing fluid. A fixed cap that is connected to the piping;
A filtration cartridge having a connection part hermetically connected to the fixed cap, the inside separating the filter housed in the interior communicating with one of the inflow path and the outflow path, and the outside communicating with the other; A cartridge type filter comprising:
An inclined groove is formed on one of the fixed cap and the connecting portion, and an inclined protrusion for engaging with the inclined groove is formed on the other, and the filtration cartridge can be rotated and fitted to the fixed cap. A cartridge type filter is provided.
In this invention of Claim 2, the said fixed cap is provided with the inclination groove | channel engraved by making it incline in one direction from the middle to the opening end in the inner peripheral surface,
The connection portion includes an inclined protrusion that is inserted into and engaged with an outer peripheral surface from an opening end of the inclined groove and is guided by the inclined groove by rotating the filtration cartridge. A cartridge type filter according to Item 1 is provided.
According to a third aspect of the present invention, the connection portion is formed in a double cylinder structure, the inner cylinder portion is one of the inflow path and the outflow path of the fixed cap, and the outer cylinder portion is an inflow of the fixed cap. Each of the path and the outflow path is configured to be hermetically connected to the inner peripheral surface of the fixed cap via a seal member,
3. The inclined groove is formed with a length that reaches a position where the inner tube portion and the outer tube portion are hermetically connected via the seal member at the end of rotation. A cartridge-type filter as described is provided.

本発明のカートリッジ式ろ過器は、固定キャップとろ過カートリッジとが、互いに係合する傾斜溝及び傾斜突片を有する構成である。このため、固定キャップに対してろ過カートリッジを回転させることにより、ろ過カートリッジを軸方向に進行させ、両者を嵌合接続することができ、ろ過カートリッジを接続時と逆方向に回転させれば固定キャップから引き抜くことができる。従って、嵌合接続時及び引き抜き時に必要な力は、従来の、ろ過カートリッジを軸方向へ直線的に押し込んだり引き抜いたりする際に必要な力と比較し、大幅に低減することができる。このため、作業時に配管等に加わる荷重も低減することができる。   The cartridge type filter of the present invention is configured such that the fixed cap and the filtration cartridge have an inclined groove and an inclined protrusion that engage with each other. For this reason, by rotating the filtration cartridge with respect to the fixed cap, the filtration cartridge can be advanced in the axial direction, and both can be fitted and connected. If the filtration cartridge is rotated in the opposite direction, the fixed cap Can be pulled out from. Therefore, the force required at the time of fitting connection and pulling out can be greatly reduced compared to the force required when the filtration cartridge is linearly pushed or pulled out in the axial direction. For this reason, the load added to piping etc. at the time of work can also be reduced.

次に、図面に示した実施形態に基づき本発明をさらに詳細に説明する。図１は、本実施形態にかかるカートリッジ式ろ過器の固定キャップ１０を示す図であり、図２は、ろ過カートリッジ２０を示す図である。   Next, the present invention will be described in more detail based on the embodiments shown in the drawings. FIG. 1 is a view showing a fixed cap 10 of a cartridge type filter according to the present embodiment, and FIG. 2 is a view showing a filtration cartridge 20.

固定キャップ１０は、図１に示したように、全体として一端（下端）開口の筒状に形成されており、筒状胴部１０ａの上部には、隔壁部１３により隔てられた流入路１１及び流出路１２が設けられている。流入路１１及び流出路１２は、固定キャップ１０の直径方向の一端側と他端側とにそれぞれ開口し、かつ、いずれも略Ｌ字状の流路となるように形成されている（図１（ａ）参照）。また、流出路１２の内側端部１２ａは、固定キャップ１０の略中央部において軸方向に沿って下向きに突出されており、この内側端部１２ａに、本実施形態において接続部を構成する後述の集液体３０の内筒部３１が接続される。   As shown in FIG. 1, the fixed cap 10 is formed in a cylindrical shape having an opening at one end (lower end) as a whole, and an inflow path 11 separated by a partition wall 13 and an upper portion of the cylindrical body portion 10 a. An outflow channel 12 is provided. The inflow path 11 and the outflow path 12 are formed so as to open to one end side and the other end side in the diametrical direction of the fixed cap 10, respectively, and to be substantially L-shaped flow paths (FIG. 1). (See (a)). Further, the inner end portion 12a of the outflow passage 12 protrudes downward along the axial direction at a substantially central portion of the fixing cap 10, and the inner end portion 12a forms a connecting portion in the present embodiment, which will be described later. The inner cylinder part 31 of the liquid collection 30 is connected.

ろ過カートリッジ２０は、図２に示したように、集液体３０、ハウジング本体部４０及びろ過体５０を備えて構成される。集液体３０は、二重筒構造に形成され、内筒部３１が上記流出路１２の内側端部１２ａに接続され、外筒部３２が固定キャップ１０の筒状胴部１０ａに、上記流入路１１と連通するように接続される。なお、内筒部３１と外筒部３２とは、図２（ｃ）に示したように、両者間を連結する連結部３４を介して一体に成形されている。また、内筒部３１の内周面には、流出路１２の内側端部１２ａとの隙間を防止し、被処理流体と処理流体との混合を防ぐシール部材としてのＯリング３５が装着されており、外筒部３２の外周面には、固定キャップ１０の筒状胴部１０ａとの隙間を防止し、流体の漏れを防止するシール部材としてのＯリング３６が装着されている。   As illustrated in FIG. 2, the filtration cartridge 20 includes a liquid collection 30, a housing main body 40, and a filtration body 50. The liquid collection 30 is formed in a double cylinder structure, the inner cylinder part 31 is connected to the inner end part 12 a of the outflow path 12, and the outer cylinder part 32 is connected to the cylindrical body part 10 a of the fixed cap 10. 11 is connected to communicate. In addition, as shown in FIG.2 (c), the inner cylinder part 31 and the outer cylinder part 32 are integrally shape | molded via the connection part 34 which connects both. Further, an O-ring 35 serving as a seal member for preventing a gap with the inner end 12a of the outflow passage 12 and preventing mixing of the fluid to be processed and the processing fluid is attached to the inner peripheral surface of the inner cylinder portion 31. On the outer peripheral surface of the outer cylindrical portion 32, an O-ring 36 is mounted as a sealing member that prevents a gap with the cylindrical body portion 10a of the fixed cap 10 and prevents fluid leakage.

集液体３０の内筒部３１は、下端に、内筒部３１の直径よりも外方に突出するフランジ部３１ａを備えており、このフランジ部３１ａにろ過体５０の上端部が固着される。外筒部３２は、下端が外筒部３２の直径よりも外方に突出すると共に、図２（ａ）の断面図において下方に向けて屈曲するように形成された筒状部３２ａを備えている。ハウジング本体４０はこの筒状部３２ａに溶着などにより固定される。従って、本実施形態においては、集液体３０の外筒部３２とハウジング本体４０とによって、ろ過体５０を収容するハウジングを構成する。なお、ろ過体５０としては、使用目的等により、中空糸膜フィルタ、プリーツ膜フィルタ、活性炭などを用いることができる。また、集液体３０やハウジング本体４０としては、合成樹脂、金属等から製作したものを用いることができる。   The inner cylinder part 31 of the liquid collection 30 is provided with a flange part 31a protruding outward from the diameter of the inner cylinder part 31 at the lower end, and the upper end part of the filter body 50 is fixed to the flange part 31a. The outer cylinder part 32 is provided with a cylindrical part 32a formed so that the lower end protrudes outward from the diameter of the outer cylinder part 32 and bends downward in the cross-sectional view of FIG. Yes. The housing body 40 is fixed to the cylindrical portion 32a by welding or the like. Therefore, in the present embodiment, the outer cylindrical portion 32 of the liquid collection 30 and the housing body 40 constitute a housing that houses the filter body 50. In addition, as the filter body 50, a hollow fiber membrane filter, a pleated membrane filter, activated carbon, etc. can be used according to the intended purpose. Moreover, as the liquid collection 30 and the housing main body 40, what was manufactured from a synthetic resin, a metal, etc. can be used.

ここで、集液体３０は、上記したように本実施形態において接続部を構成し、外筒部３２の外周面に、図２（ａ），（ｂ）に示したように、傾斜突片３３が設けられており、これに対応して、図１（ａ）に示したように、固定キャップ１０の内周面に、傾斜溝１４が形成されている。傾斜突片３３と傾斜溝１４は、ろ過カートリッジ２０を一方向に回転させながら係合させることができるように形成されていればよく、その形状、長さ等は限定されるものではない。   Here, the liquid collection 30 constitutes a connecting portion in the present embodiment as described above, and the inclined projection piece 33 is formed on the outer peripheral surface of the outer cylinder portion 32 as shown in FIGS. 2 (a) and 2 (b). Correspondingly, an inclined groove 14 is formed on the inner peripheral surface of the fixed cap 10 as shown in FIG. The inclined protrusions 33 and the inclined grooves 14 may be formed so that the filtration cartridge 20 can be engaged while rotating in one direction, and the shape, length, and the like are not limited.

但し、装着時の回転量を少なくしてできるだけ容易に装着可能とするために、傾斜溝１４は、固定キャップ１０の内周面の中途から開口端に至るまで一方向に傾斜させて、該固定キャップ１０の内周の１／２〜１／５程度の長さで形成することが好ましい。さらには、傾斜溝１４は、該傾斜溝１４に沿っての傾斜突片３３の相対移動が停止した際に、すなわち、ろ過カートリッジ２０の回転終了時点で、上記内筒部３１及び外筒部３２が、固定キャップ１０の流出路１２の内側端部１２ａ及び筒状胴部１０ａにそれぞれシール部材であるＯリング３５，３６を挟んだ位置に至る長さで形成されていることがより好ましい。これにより、より少ない回転量で、より確実にろ過カートリッジ２０の接続部（本実施形態では集液体３０）を固定キャップ１０に固着できる。また、上記と同様により少ない回転量で確実に装着することを目的として、傾斜溝１４及び傾斜突片３３は円周方向に所定間隔毎に複数形成することが好ましい。   However, in order to reduce the amount of rotation at the time of mounting and to enable mounting as easily as possible, the inclined groove 14 is tilted in one direction from the middle of the inner peripheral surface of the fixing cap 10 to the opening end to fix the mounting. It is preferable to form the cap 10 with a length of about 1/2 to 1/5 of the inner circumference. Further, when the relative movement of the inclined protrusion 33 along the inclined groove 14 is stopped, that is, when the rotation of the filtration cartridge 20 is finished, the inclined groove 14 has the inner cylindrical portion 31 and the outer cylindrical portion 32. However, it is more preferable that the inner cap 12a and the cylindrical body 10a of the fixing cap 10 are formed to have lengths that reach the positions where the O-rings 35 and 36 that are sealing members are sandwiched, respectively. Thereby, the connection part (the liquid collection 30 in this embodiment) of the filtration cartridge 20 can be more reliably fixed to the fixed cap 10 with a smaller amount of rotation. Moreover, it is preferable to form a plurality of inclined grooves 14 and inclined protrusions 33 at predetermined intervals in the circumferential direction for the purpose of securely mounting with a smaller amount of rotation as described above.

また、図１（ａ）及び図３に示したように、傾斜溝１４における傾斜突片３３の停止位置には、傾斜突片３３が入り込む凹部１４ａを設けておくことが好ましい。これにより、図３（ｄ）に示したように、凹部１４ａの手前段部１４ｂに傾斜突片３３が引っかかり抜け止め機能が果たされ、ろ過カートリッジ２０を固定キャップ１０により強固に接続できると共に、凹部１４ａに傾斜突片３３が入り込む時の音や操作感により両者が確実に嵌合したことがわかる。   Moreover, as shown in FIG. 1A and FIG. 3, it is preferable to provide a recess 14 a into which the inclined protruding piece 33 enters at the stop position of the inclined protruding piece 33 in the inclined groove 14. As a result, as shown in FIG. 3 (d), the inclined protrusion 33 is caught by the front step portion 14b of the recess 14a, and the retaining function is achieved. The filtration cartridge 20 can be firmly connected by the fixing cap 10, It can be seen from the sound and operation feeling when the inclined protrusion 33 enters the recess 14a that they are securely fitted.

本実施形態のカートリッジ式ろ過器は、固定キャップ１０の流入路１１を水道管などの被処理流体を供給する配管に接続し、流出路１２を処理流体を流出させる配管に接続して用いられる。ろ過カートリッジ２０は、接続部である集液体３０に設けた傾斜突片３３を、固定キャップ１０に形成された傾斜溝１４の開口端（下端）から係合させて所定方向に回転させて取り付けられる（図３（ａ）参照）。回転させることにより、傾斜突片３３が傾斜溝１４に沿って軸方向に進行し（図３（ｂ），（ｃ）参照）、傾斜突片３３が凹部１４ａに入り込むと回転が終了し（図３（ｄ）参照）、内筒部３１の内周面と流出路１２の内側端部１２ａの外周面との間にＯリング３５が介装された状態で、かつ、外筒部３２の外周面と固定キャップ１０の筒状胴部１０ａの内周面との間にＯリング３６が介装された状態で固定され、接続作業が完了する。従って、従来のように、軸方向に直線的に大きな力を与えて嵌合させる構造ではないため、接続作業を軽い力で行うことができると共に、作業時に配管等にかかる荷重も軽減できる。   The cartridge type filter of this embodiment is used by connecting the inflow path 11 of the fixed cap 10 to a pipe for supplying a fluid to be processed such as a water pipe, and connecting the outflow path 12 to a pipe for discharging the processing fluid. The filtration cartridge 20 is attached by engaging an inclined projecting piece 33 provided on the liquid collection 30 as a connecting portion from an open end (lower end) of the inclined groove 14 formed in the fixed cap 10 and rotating it in a predetermined direction. (See FIG. 3 (a)). By rotating, the inclined projecting piece 33 advances in the axial direction along the inclined groove 14 (see FIGS. 3B and 3C), and when the inclined projecting piece 33 enters the recess 14a, the rotation is finished (see FIG. 3). 3 (d)), with the O-ring 35 interposed between the inner peripheral surface of the inner cylindrical portion 31 and the outer peripheral surface of the inner end portion 12a of the outflow passage 12, and the outer periphery of the outer cylindrical portion 32. The O-ring 36 is fixed between the surface and the inner peripheral surface of the cylindrical body portion 10a of the fixing cap 10, and the connection work is completed. Therefore, since it does not have a structure in which a large force is applied linearly in the axial direction as in the prior art, the connection work can be performed with a light force, and the load applied to the piping or the like during the work can be reduced.

そして、被処理流体は、流入路１１を経て、集液体３０の筒状部３２ａ及びハウジング本体４０から形成されるハウジングとろ過体５０との間に浸入し、ろ過体５０を外側から内側へと厚み方向に通過しろ過処理される。ろ過処理された処理流体は、ろ過体５０の内側中空部から集液体３０の内筒部３１を経て流出路１２へ送り出される。   Then, the fluid to be treated enters through the inflow path 11 between the tubular portion 32a of the liquid collection 30 and the housing formed from the housing body 40 and the filter body 50, and the filter body 50 is moved from the outside to the inside. It passes in the thickness direction and is filtered. The filtered processing fluid is sent out from the inner hollow part of the filter body 50 to the outflow path 12 through the inner cylinder part 31 of the liquid collection 30.

ろ過処理の継続により圧力損失が所定以上に至った場合には、ろ過カートリッジ２０を固定キャップ１０から取り外す。この際、本実施形態では、ろ過カートリッジ２０を上記と逆方向に回転させれば、図３（ｄ）の状態から図３（ａ）の状態へと、傾斜突片３３が係合溝１４の開口端方向へ移動し、従来よりも小さな力で取り外すことができる。使用済みのろ過カートリッジ２０を取り外したならば、新たなろ過カートリッジを上記と同様にして固定キャップ１０に装着して使用する。   When the pressure loss reaches a predetermined value or more due to the continuation of the filtration process, the filtration cartridge 20 is removed from the fixed cap 10. At this time, in this embodiment, if the filtration cartridge 20 is rotated in the opposite direction to the above, the inclined projecting piece 33 moves from the state of FIG. 3D to the state of FIG. It moves in the direction of the opening end and can be removed with a smaller force than before. When the used filtration cartridge 20 is removed, a new filtration cartridge is mounted on the fixing cap 10 in the same manner as described above.

なお、上記実施形態においては、ろ過カートリッジ２０の接続部を、集液体３０により構成している。これは、集液体３０の外筒部３２に連設されている筒状部３２ａを、ハウジングの一部として構成しているためであり、例えば、図４に示した従来例のように、ハウジング１４０と集液体１３０とを別部材から形成し、ろ過体１５０を備えた集液体１３０を流出路１１２（中継アダプタ１１３）に接続した後に、ハウジング１４０を固定キャップ１１０に接続するタイプにおいては、集液体１３０だけでなく、ハウジング１４０の上部付近も含めて、本明細書で定義している接続部となる。従って、この場合には、ハウジングの上部外周面に、固定キャップの内周面に形成した傾斜溝に係合する傾斜突片を形成する。   In the above embodiment, the connection part of the filtration cartridge 20 is constituted by the liquid collection 30. This is because the cylindrical portion 32a connected to the outer cylindrical portion 32 of the liquid collection 30 is configured as a part of the housing. For example, as in the conventional example shown in FIG. In a type in which the housing 140 is connected to the fixed cap 110 after the liquid collection 140 having the filter body 150 is connected to the outflow passage 112 (relay adapter 113), and the housing 140 is connected to the fixed cap 110. Not only the liquid 130 but also the vicinity of the upper portion of the housing 140 is a connection portion defined in this specification. Therefore, in this case, an inclined protrusion that engages with an inclined groove formed on the inner peripheral surface of the fixed cap is formed on the upper outer peripheral surface of the housing.

また、上記実施形態では、固定キャップ１０に傾斜溝１４を形成し、ろ過カートリッジ２０の接続部に傾斜突片３３を形成しているが、傾斜溝をろ過カートリッジ２０の接続部に形成し、傾斜突片を固定キャップ１０に形成する構成とすることも可能である。また、上記実施形態では、集液体３０の外筒部３２に固定キャップ１０の筒状胴部１０ａを接続することで流入路１１に連通させ、集液体３０の内筒部３１に流出路１２を接続した構成とし、ろ過体５０の外側から内側に向かって被処理流体を通過させる構成としているが、逆方向にろ過処理されるような配管接続構成とすることも可能である。さらに、流入路１１及び流出路１２を固定キャップ１０の直径方向に沿って設けているが、例えば、図４の従来例のように固定キャップに対して垂直方向に形成するなど、その形成方向は任意である。   Moreover, in the said embodiment, although the inclination groove | channel 14 is formed in the fixed cap 10, and the inclination protrusion 33 is formed in the connection part of the filtration cartridge 20, an inclination groove | channel is formed in the connection part of the filtration cartridge 20, and it is inclined. It is also possible to adopt a configuration in which the protruding piece is formed on the fixed cap 10. In the above embodiment, the cylindrical body portion 10 a of the fixed cap 10 is connected to the outer cylindrical portion 32 of the liquid collection 30 to communicate with the inflow passage 11, and the outflow passage 12 is connected to the inner cylindrical portion 31 of the liquid collection 30. Although it is set as the structure connected and it is set as the structure which passes a to-be-processed fluid toward the inner side from the outer side of the filter body 50, it is also possible to set it as the piping connection structure which is filtered in the reverse direction. Furthermore, although the inflow path 11 and the outflow path 12 are provided along the diameter direction of the fixed cap 10, for example, the direction of formation is formed in a direction perpendicular to the fixed cap as in the conventional example of FIG. 4. Is optional.

図１は、本発明の一の実施形態にかかるカートリッジ式ろ過器に用いた固定キャップを示す図であり、（ａ）は断面図を、（ｂ）は底面図をそれぞれ示す。1A and 1B are diagrams showing a fixing cap used in a cartridge type filter according to an embodiment of the present invention, wherein FIG. 1A is a sectional view and FIG. 1B is a bottom view. 図２は、上記実施形態にかかるカートリッジ式ろ過器に用いたろ過カートリッジを示す図であり、（ａ）は断面図を、（ｂ）は側面図を、（ｃ）は平面図をそれぞれ示す。FIG. 2 is a view showing a filtration cartridge used in the cartridge type filter according to the embodiment, wherein (a) shows a cross-sectional view, (b) shows a side view, and (c) shows a plan view. 図３（ａ）〜（ｄ）は、ろ過カートリッジに設けた傾斜突片を固定キャップの傾斜溝に係合させる工程を説明するための図である。FIGS. 3A to 3D are views for explaining a process of engaging the inclined protrusion provided on the filtration cartridge with the inclined groove of the fixed cap. 図４は、従来のカートリッジ式ろ過器を示す断面図である。FIG. 4 is a cross-sectional view showing a conventional cartridge type filter.

符号の説明Explanation of symbols

１０ 固定キャップ
１０ａ 筒状胴部
１１ 流入路
１２ 流出路
１４ 傾斜溝
２０ ろ過カートリッジ
３０ 集液体
３１ 内筒部
３２ 外筒部
３２ａ 傾斜突片
３５ Ｏリング
３６ Ｏリング
４０ ハウジング本体
５０ ろ過体 DESCRIPTION OF SYMBOLS 10 Fixed cap 10a Cylindrical trunk | drum 11 Inflow path 12 Outflow path 14 Inclination groove 20 Filtration cartridge 30 Liquid collection 31 Inner cylinder part 32 Outer cylinder part 32a Inclined protrusion 35 O-ring 36 O-ring 40 Housing main body 50 Filter body

Claims (3)

一端開口の筒状に形成されていると共に、被処理流体の流入路及び処理流体の流出路を備え、この流入路及び流出路が配管に接続されて配設される固定キャップと、
前記固定キャップに密閉的に接続される接続部を備え、内部に収容されるろ過体を隔てた内側が前記流入路及び流出路の一方と連通され、外側が他方と連通されるろ過カートリッジと、を具備するカートリッジ式ろ過器であって、
前記固定キャップと前記接続部とのいずれか一方に傾斜溝が、他方に該傾斜溝に係合する傾斜突片が形成されており、ろ過カートリッジを回転させて固定キャップに嵌合装着可能であることを特徴とするカートリッジ式ろ過器。 A fixed cap that is formed in a cylindrical shape with an opening at one end, and includes an inflow path for a processing fluid and an outflow path for a processing fluid, and the inflow path and the outflow path are connected to a pipe;
A filtration cartridge having a connection portion hermetically connected to the fixed cap, the inside of the filter body accommodated inside is connected to one of the inflow path and the outflow path, and the outside is connected to the other; A cartridge type filter comprising:
An inclined groove is formed on one of the fixed cap and the connecting portion, and an inclined protrusion for engaging with the inclined groove is formed on the other, and the filtration cartridge can be rotated and fitted to the fixed cap. A cartridge type filter. 前記固定キャップが、内周面に、その中途から開口端に至るまで一方向に傾斜させて刻設された傾斜溝を備え、
前記接続部が、外周面に、前記傾斜溝の開口端から挿入されて係合し、ろ過カートリッジを回転させることにより該傾斜溝に案内される傾斜突片を備えていることを特徴とする請求項１記載のカートリッジ式ろ過器。 The fixed cap includes an inclined groove formed on the inner peripheral surface by being inclined in one direction from the middle to the opening end,
The connection portion includes an inclined protrusion that is inserted into and engaged with an outer peripheral surface from an opening end of the inclined groove and is guided by the inclined groove by rotating the filtration cartridge. Item 6. A cartridge type filter according to Item 1. 前記接続部は、二重筒構造に形成され、内筒部が前記固定キャップの流入路及び流出路のうちの一方に、外筒部が前記固定キャップの流入路及び流出路のうちの他方を形成する固定キャップの内周面に、それぞれシール部材を介して密閉的に接続される構成であり、
前記傾斜溝は、回転終了時点で、前記内筒部及び外筒部がそれぞれ前記シール部材を介して密閉的に接続される位置に至る長さで形成されていることを特徴とする請求項２記載のカートリッジ式ろ過器。 The connection part is formed in a double cylinder structure, an inner cylinder part is one of the inflow path and the outflow path of the fixed cap, and an outer cylinder part is the other of the inflow path and the outflow path of the fixed cap. It is configured to be hermetically connected to the inner peripheral surface of the fixed cap to be formed through a seal member,
3. The inclined groove is formed with a length that reaches a position where the inner tube portion and the outer tube portion are hermetically connected via the seal member at the end of rotation. The cartridge type filter as described.
JP2004171865A 2004-06-09 2004-06-09 Cartridge type filter Pending JP2005349283A (en)

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