DE2023491C - Filter device - Google Patents

Description

_{on the} filter head in the first hole in the filter head ^^

Thin, annular collar is formed, so on hand of

as contains a second through-opening which m tert It shows _{ - according to the invention

A second, annular collar is formed, the FIG. 1 the Drautsicni ^au . Components from

KrÄffÄsss ⁵ ? ^ S ^ ^{hkeit we8ßebro} "

head seals are provided between the feeder head and the closure member.

In short, the filter device of the present invention includes a feed head with a built-in one Shut-off valve that is firmly in the pressure medium to be filtered leading supply line are installed

ok

Fig. ^ Line 3-3 of the Figure of Kle

leg ^ ÄeFse

3S

zth section along _the lower half of the

Parent unit in _this

^ S ^^ are! ffi the clamping ring in a zim section and partially m

Inlets and outlets that work together in the filter head and in the feeder screen for a flow of fluid through the fi lter. Interlocking cams are provided on the filter head and on the clamping ring, whereby the clamping ring is displaced into a clamping position by rotation in one direction and the filtering device is brought into sealing contact with the t η feeder head. When turning this clamping ring in the opposite direction, the ringing device νβη? Filter head released. According to a further embodiment of the invention, a securing device is also provided which prevents the clamping ring from loosening as long as the shut-off valve is fully open Fluid pressure is present.

Ate at the filter device according to the invention the filtering device can be removed quickly and easily without the use of tools and change. The clamping ring, the groove of the filter

a »a

a ₅

a De * JJ
posed and

Closure cover w

12, mn

tion

30th

35

4 »^ voSieise metal manufacturing« £ _e * _th portion 11 nut ^"n _provided inlet

14 in connection _with extended drilling

L _n threaded section 16a

&% £ $ ££££ Also internal thread of the in! Schra «tovcrbma« ng _cine length -

Bore JS. The V ^ um ^ _w ^ _dem

™ * «". ^ '^ ISiJ, «, lever 18 connected to the end of a» £ «*» g ^ ^ _o . ^ _N ^ _s

is. ^ - ^ ntil ^ he 10 ^ _{together of the}

20 '^ end with the B ^ _{fc m f}

^Ve ntükorpe .st te ^ ^^ _mlt «n

ttil ASa can work together. When the Vta g ^ S ^ « _F i _g . HO- ^"1 1 and 2 ^ _§ ^ _{Uun ηά} ^ _dissolved the waste ^ Ua, whereby Ae the inlet 12 and a medium-

that the seal between the filtering direction and the filter head must be lifted off,

bevo. the pressure vessel can be removed, thus preventing that the device * _{dne middle} lbohg

_u men facing shoulder 24 α

_{Above the} bore section U contains one

acting approaches is provided on the lever and the clamping ring and a rotation of the clamping ring in its Entnegelungsstellung yerhouses if the shut-off valve is open. The inputs and Audüsie the F'ltervornchtung invention operate advantageously with inlet and outlet ports of the removable Filtnereinnchtung ^to-S Te ^en erfindun _g sgemäße filter device is further distinguished by a simple construction and consists of only a few components.

- and

second

u & _coffee . _Ve rkaufsautomaten, ^ _{6n. The} filleting head 10 can

_igl) , n the filter head comprises a _{thinner central} bore 27, _f-shaped bore

«Plonng, * £? %% _Sner integrally molded, identical

formed lugs 32 provided, the diametrically a substantially cylindrical container 59 auftral are arranged opposite one another (see Fig. 4). has, which is preferably made of metal. the The section 26 can be integrally attached to the first pressure vessel 59 is closed at the lower end and Section 11 molded on or separated from it at its other end by a closure member and then by means of suitable fastening means 5 60, which can consist of metal or plastic, be attached to section 11. lockable.

Each approach 32 is provided with a curved, in the we- The closure member 60 is essentially conical

The main horizontally running guide surface is shaped and has a flange 61 on the un-34, a helically curved or inclined lower end, a smaller collar 62 and one Guide surface 35 and a further curved, in * o relatively larger annular collar 63 is provided. The The substantially horizontally arranged guide upper end of the vessel 59 is solid and fluidic 36 provided. The guide surface 34 is tightly connected to the flange 61 of the closure member 60 connected to a stop surface 37, and crimped in a similar manner. The two coils and the flange Way gehl the guide surface 36 in a stop are arranged coaxially to one another. The ring collar area 38 over. At the lower edge of the collar 30 15 62 forms a through opening 64, which with the are two identically designed, diametrically arranged bore 22 and the opening 12, the one lying opposite one another in this area Lugs 40 provided, which forms the inlet of the exemplary embodiment, in connection The lower edge of the collar protrudes downwards and stands out from it. The port 64 supplies the interior of the print to each forms a guide surface 40 a. These approaches kesseis over the tubular extension 62 a of the two essentially diametrically opposite collars 62 with liquid separate the annular collar 63 is co-opposed, curved lower surfaces 41, which are arranged in an axially to the annular collar 62 and forms a common horizontal plane. Opening in the form of a through hole 65, the

A clamping device in the form of a clamping ring is located outside the collar 62 and with the Bohges 42 contains a sleeve 44 with inner diameter 24 and the opening 25, which in this embodiment opposing lugs 45, which is identical to the outlet, which forms the outlet, are formed and with the corresponding sowing A web 66 connects the flange 61 to the collar zen 32 can work together. Each lug 45 is 63. The first annular collar 62 can be used as an upper be formed on the upper edge of the clamping ring 42 and the end of a tube 67 which is attached to a includes a substantially horizontally extending web 68 connected to the closure member 60 downwardly directed guide surface 46 which is held in a 30 (see FIG. 6). In this case, the open-leaning or helically arched guide 65 through the entire space between the surface 47 merges The approach 45 also contains the outer circumference of the tube 67 and the inner circumference Stop surfaces 48 and 49. of the second annular collar 63 formed wherein the ring

Between the lugs 45, but then on the opposite side, there is a tubular extension of the web overlying lower edge of the clamping ring 42 are 35 66 is

two inner guide lugs 50 are provided, which are identical to the upper end of the collar 62 or raw table are formed and push by 180 ° against each other res 67 sealingly into the bore 22 to are offset. Each guide approach can be provided with a seal. To this The annular collar 62 or the tube 67 contains a curved, essentially horizontal, purpose stepped guide and support surface 52 verse- * o preferably an annular groove 69 in which an O-ring 70 hen, the ends of which are held in stop surfaces 53 and 54, respectively, which form a seal with the bore 22 pass over. forms. The collar 63 is similarly with

The clamping ring 42 is rotatably provided on the section 26 of an annular groove 71 in which an O-ring 72 andes The filter head is arranged, the guide surface being arranged, which forms a seal with the bore 24 Chen of the approaches 32 with the corresponding guides 45 in section 11 forms

Approximate surfaces of the approaches 45 cooperate. When the arrangement of the openings in the closure member

the clamping ring 42 is in the position shown in FIG. 1 is particularly advantageous because there is only a very ge-clamping position, the guide surfaces 34 are a ring surface on which a counter pressure and 35 can act on the corresponding guide surfaces 46. As a result, the total force, and 47 on and interact with these, and the 5 ° that is exerted on the pressure vessel when these stop surfaces 37 and 48 are in mutual release, is extremely small, and likewise the force, abutment. When the clamping ring 42 is rotated clockwise, which acts in the direction of loosening the pressure vessel (in the sense of FIG. 1), the guides from the filter head in the manner described below 35 and 47 and the stop surfaces 37 are kept extremely small ,
and 48 separated from each other. 55 The pressure vessel 59 contains a filter element sliding surfaces 34 and 46 on top of one another until the end is formed, for example, a folded filter bag 74 of the guide surface 46 with the guide surface 35 according to US Pat. No. 3,055,503 cooperates, whereupon the clamping ring 42 can be in. The liquid in the container 59 is filled in the axial direction or downwards in the direction of the tert and flows into the interior of the filter bag unlocking position begins to move The fully released unlocking position in a component 76 is formed by the interaction of the stops 49 of the clamping element formed in one piece on the locking member 60, the filtered, through the opening 75 ring 42 with the stops 38 of the section 26 flowing liquid is confined to a chamber 77. 65 leads, which is formed in the closure member and with-

The filter device according to the invention contains means of the trained in the collar 63 of the "closure member" Nilricrcinrichtung preferably in the form of an opening 65 with the outlet 25 in connection Filter insert 58, which is a pressure vessel in the form of the filter element in the container 59 can na-

023

For every arbitrary ^^ filter elements can contain a dosing - ^^ J lungsraum, as shown in, the ^ A -Patent ^ message Ser. No. 440831 of March 18, 1965 shown ^is the pressure vessel "^ metral see opposite,"

Attachment ribs 78, which also form the corresponding, stepped surfaces 52 on the outside

rungsansäte 50 added ^ "^ the filter insert 58 on the Wemmrmg 42. zu

The preferred embodiment example 1 for reasons of better understanding, including the filter insert 58 to be replaced, according to the invention, a reusable pressure vessel can also be used or a pressure vessel 59 is designed. The 59 could in this case be provided with a filter element, woto member 56 in one piece on
would. On the other hand, could
Closing link and the ** £ the separate, assemblable

which only the ^^^ '' ^ SuSbaTam In this case, would be the JerscWußg ^^ d 60 releasably at the top of ^{Dru <*} behalters ibetesngu However, it is particularly .vorteilhaft ^ "g bare filter unit as shown in ^ J ^ 58 is ^^ cally to use the filter cartridge such as the filter element nich dihtfaig "ng | idirt

A security measure is also prevented

roige _{B & henmgßmaaa to} the filter insert

__ Jjen ^ ^ ^^ £ _{fluid flow} o _m am

mustandnotfi «ag« g

Water for use i

did convey this

Handling a great advantage. ,,

The mode of operation of the filter device according to the invention will now be reduced . _d .

It is assumed that the Νΐ ^ε ™ ^ηβ ^ T ^m £ ner lower, loosened Entnegelun ^ lage filter insert 58 throws held by hand m position and inserted with semem * Ji clamping ring 42, the neck rib ^ ^

through the free Z ^^^ S ^ SSSS ^ of the guide lugs 50
iDF.lte

TA «for some reason so ™. _that ^ _{sentences 18 c} and 42 a

^ e have come free from each other, resulting in yes only partial hydraulic fluid supply

weke is closed off, a violation of the regret will be a ^ g J * ^ ^ ^^ _any e, nes

Component of the associated facility still built-in £ ^ s ^ ^ _{FUtcreinsatz 58}

nma £ _{42 without} ^ _{n nkht separated who-}

^ ^m _{can we} "" _the κι _εΐηΐηΗ η8 52 is adjusted in its Entnege-Wl. If the clamping ring 42 only separates a small amount from the filter head, the sealing rings 70 g ^ ^ ^^^ bores 22 and so that liquid can escape, which indicates to the gdLningsmann that the adjusting lever 18 is not in its firing position , η ^ this _{case τά ever! but} Fdtereinsatz 58 is not clamping ring 42 blown from a ₅ because the Ansatznppen 78 a _a terminal ^ ^^^ _{abeesea] ate} faces 52 of the

Guide lugs 50 are arranged, the stop surfaces 54 preventing further rotation. To remove the filter unit 58, they must team if necessary ^ ^ _aa ^ _{UBm are} d ^ t sje

_we can be itergedreht and Ansatznppen 78 _{m Au} fnchtung with the openings between the En-Fihnmgsansätze 50 enter and can be moved through these openings.

_{ßc; a} ^ _{eltenen Auswec} hseln of FUtereinsatzes _{κ 58 may} occur that the sealing rings 70 and Λ »Ka ^ ^ _liageTca life in quantitative together _pressed state with the corresponding holes adhere ₂ 2 and 24, and are difficult to free from these *? ^ _{The Fol since} the filter insert ß 58 only _χ ^ _{ή from} 10 püterkopf to remove. For this purpose, the guide surfaces 40 a are provided on the lower section 26, whereby when the clamping ring 42 is rotated clockwise in the sense of FIG. 1, the attachment ribs 78 of the filter

Fi _g. 4g

any direction opposite the rotated and slightly lowered ^ so set ribs 78 on the stepföJ «" J Chen 52 of the guide lugs 50 zn left as in the left part of the Fig. 3 shown.

The clamping ring 42 becomes "P" * ¹¹ upper, clamped position

the filter unit 78 fVf
ribs between

dien 52 and the surfaces 41 tes 26 are pressed tightly ^^^ is held tightly. File get a larger ring collar 62 and the larger closure link 60 m «^ en & ng ^ ff with speaking bores 22 and 24 J * part of the Fig. 3 shown ^" - ^ ΪΑ This means of action is brought to the filter category, in which the control lever 18 is brought into the horizontal position shown in FIGS. 1 and 2, an approach measure is the control lever 18 α provided, which can be indicated by a gcn ^ emen clamping ring,

hung ues μιπηι »" * «·

_{md hierdarch the} spring insert form-locking ^^^ _Mch ^ _{116n press} , whereby the opening rings 70 and 72 throw loose and the filter- ^^ B ^ clamping ring 42 can follow in its lower deflagration position.

The clamping ring 42 can easily be turned by hand in any direction; it is in order with _f ^ offset direction, provided in A "alrichtung verlaufen- ^ Kippm 42b erieichtern its rotation by hand. The clamping ring 42 can also be thrown rotated in both directions that the

_{da En (Jen the} ^

SSp ^ n 78 in abutment with "the stop _{surfaces s PP- n} ^ _{dadHrch dcr} ^," ^ "g _{42 in}

Throw offset rotation.

According to the invention, a filter device that is easy to handle is created which distinguishes ^^ _several ^^^ _ΜεΛπιΑ 1 _ε

^^ ^^^ _{several ΜεΛπιΑ} 1 ausze _ε 6 "The filter element can be easily distances ^6S" _{cn and} exchange, without using

ne ^ _Wcrkze ^, _{ohnc cin over} flow

_{or spill} and without an accident or injury

danger to the operator. As a result of the shut-off valve on the filter head, the operator must do not shut off the water supply at a remote location. Two security measures are provided: on the one hand, the clamping ring must be rotated and the pressure vessel removed from the filter head can be released, the control lever for the shut-off valve can be released from the clamping ring, the shut-off valve is brought into the closed position; however, if the shut-off valve is not fully closed When the clamping ring is partially loosened, a device provided on the clamping ring prevents it a complete loosening of the clamping ring,

10

whereby the risk is eliminated that the pressure vessel by the fluid pressure from Filter head is blown away. This is a possible injury to the operator or damage to the components when loosening the clamping ring 42 is avoided. The filter head and that Closure member of the filter insert are also advantageously cooperating with one and Provided outlet openings. The fluid pressure can only be applied to a very small area attack, and as a result is acting in the sense of a loosening of the filter element from the filter head Force very small.

1 sheet of drawings

Claims (6)

2 023 431 ι 2 which the valve body (16) is released from the valve seat (15a), the clamping ring (42) against a patent claims: rotation in the unlocked position secures and in a second position in which the valve body on 1. Filter device with a valve seat to be fil- 5 rests, releases the clamping ring,
terndes pressure medium leading supply line connectable feed head into which a cylindrical One end of the filtering device is detachable can be used, characterized in that. that the filter head (10) with a first centrally an- io
ordered, with the inlet (12) in connection standing small hole (22) and one '. coaxially adjoining the first bore The invention relates to a filter device second, larger bore (24) is provided, the device is supplied with a pressure medium to be filtered in the outlet (25) opens that the filtering 15 rende supply line connectable filter head into the means (58, 74) for detachable insertion into a cylindrical filtering device with one of its the filter head at one end a closure end can be releasably inserted. member (60> has a first through opening) Such filter devices are, for example (64), which are used in a first, centrally arranged in beverage vending machines, for example, when fastening the closure member on the FiI-20, coffee vending machines,
terkopf in the first bore (22) of the filter head Such vending machines are equipped with insertable, annular collar (62) formed different types of filter devices, as well as a second through opening (65) that contains that used to prepare the coffee, which is in a second , ring-shaped bunch of water, filter and clean it. Such a filter device (63) is formed, which is coaxial with the first ring as contain filter inserts, which are arranged in the form of a collar depending on the type and can normally be inserted into the second boh of the filter insert by means of a control (24) of the filter head, and that nungsmann that the vending machine waits, renews or refills as needed to seal the annular collars and the trap. In the case of associated bores in the filter head seals and the maintenance of a typical exemplary embodiment (70, 72) between the filter head (10) and 30 of such filter devices, the operating mechanism of the closure member (60) must be provided. man first the water supply to the sales car 2. Filter device according to claim 1, shut off marked maten by means of a suitable valve that characterized by one with the filter head (10) and usually remote from the vending machine Filtration device (58, 74) is arranged together. The operator opens the print end Clamping device (42) through which the boiler 35 and then removed the filter insert normal-closure member (60) can be releasably clamped to the filter head (10) using a tool is. device. The filter element is then either 3. Filter device according to claim 1 or 2, filled or reloaded and then again characterized in that connected to the opening and the vending machine. In some cases of closure of the inlet (12) in the filter head 40, a reserve insert can be provided, whereby (10) a shut-off valve (16, 16b ) is provided by the operator avoiding the refilling process. After the operating 4. Filter device after one of the previously a new or refilled filter insert pending claims, characterized by two built in, the water supply line must be restored at the upper end of the filter device (58,74) 45 are opened. trained, radially outwardly projecting and This is a relatively time-consuming provision diametrically opposed rib passage, which requires some dexterity on the part of the loading (78), the in-service condition of the filter attendant and the use of tools required on appropriately graded support surfaces. This process also takes chen (52) of inwardly protruding guide an- 50 often spills liquid and filter medium, which sets (50) of the clamping device (42) by the operator or another beehive. servants need to be mopped up. 5. The filter device according to one of the preceding aims of the invention is to provide an improved filter device Claims, characterized in that to create tervorrichtung in which the filter insert the clamping device has a clamping ring (42) with 55 quickly and easily even through untrained or we-guide surfaces (46, 47) contains that with appropriately trained personnel and without using any end Guide surfaces (34, 35) of the filter head rather tools can be exchanged. fes cooperate, the clamping ring in the case of a filter device of the aforementioned Rotation in one direction of the clamping type, this object is achieved in that the FiI- position in the unlocked position in the axial direction 60 terkopf with a first centrally arranged, with the slidable and when rotated in a small bore in communication with the opposite inlet the direction can be returned to the clamping position and one coaxially adjoins the first hole. is. ßenden second larger hole is provided, which is in 6. Filter device according to claim 5, characterized in that the outlet opens in that the filtering device characterized in that the valve body (16) of the 65 for releasable insertion into the filter head on the By turning the shut-off valve in the filter head, one end has a closure member which can be created is arranged and an adjusting lever (18, ste passage opening in a first, centrally 18 a) carries, which in one pivot position, in arranged, when attaching the closure member