CS207448B1 - Check valve particularly for the vacuum pumps - Google Patents

Check valve particularly for the vacuum pumps Download PDF

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Publication number
CS207448B1
CS207448B1 CS884579A CS884579A CS207448B1 CS 207448 B1 CS207448 B1 CS 207448B1 CS 884579 A CS884579 A CS 884579A CS 884579 A CS884579 A CS 884579A CS 207448 B1 CS207448 B1 CS 207448B1
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CS
Czechoslovakia
Prior art keywords
sealing element
check valve
vacuum pumps
collar
flange
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Application number
CS884579A
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Czech (cs)
Slovak (sk)
Inventor
Jozef Sulej
Original Assignee
Jozef Sulej
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Jozef Sulej filed Critical Jozef Sulej
Priority to CS884579A priority Critical patent/CS207448B1/en
Publication of CS207448B1 publication Critical patent/CS207448B1/en

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  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Description

i (54) Zpatný ventil, najma pre vývevy(54) Non-return valve, especially for vacuum pumps

Vynález sa týká zpátného ventilu, najma pre vývevy.The invention relates to a non-return valve, particularly for vacuum pumps.

V súčasnej době sa u vývevy pri dosiahnutí potřebného vákua používá k uzavretiu jej sacej časti zpatný ventil, ktorého funkcia spočívá v tom, že po dosiahnutí potřebného vákua v evakuovanej j časti sa výveva odstaví a vzniklým podtlakom sa j přisaje tesniaci element zpátného ventilu, vedený i svojou vřetenovou častou v klznom ložisku, na j tesniacu plochu upravená priamo v telese ventilu, í Tento tesniaci element zpátného ventilu je tvořený j pryžovým těsněním zovretým medzi dvoma medzi- ; \ knižnými kružkami a je upevněný na vřetene, ; prechádzajúcom klzným ložiskom, upraveným pomocou rebier v dutině telesa ventilu. Pri poklese vákua sa tesniaci element znovu uvolní a výveva sa uvedie znovu do činnosti. Celá funkčná časť ventilu i je teda uložená vovnútri telesa ventilu, opatřeného ( dvomi připojovacími přírubami, ktorými je ventilAt present, when the vacuum pump reaches the required vacuum, a non-return valve is used to close the suction part. The function of the pump is to stop the vacuum pump after the necessary vacuum has been reached. with its spindle portion in the sliding bearing, on which the sealing surface is provided directly in the valve body. This non-return valve sealing element consists of a rubber gasket clamped between two intermediate parts; \ Book circles and is fixed to the spindle; passing through a plain bearing, modified by ribs in the cavity of the valve body. When the vacuum drops, the sealing element is released again and the pump is reactivated. Thus, the entire functional part of the valve 1 is housed within the valve body provided with (two connecting flanges which are

- zapojený medzi sacie potrubie vývevy a evakuovanú časť.- connected between the pump suction line and the evacuated part.

Ďalej je známy zpatný ventil napr. podía britského patentu č. 1,136.091, kde vřeteno tesniaceho elementu je nad klzným ložiskom odpružené, takže jeho přítlačná sila je regulovatelná. Vlastný tesnia- j d element je převedený ako gulová úseč dosadajú- ; ca svojou gulovou častou do časti sedla ventilu, i Nevýhodou týchto známých riešení je predovšet207448 j kým obtiažnosť montáže tesniaceho elementu, pracná a tým i nákladná výroba, zaradením zpátného ventilu medzi evakuovanú časť a sade potrubie vývevy sa predlžuje stavebná dížka agregátu a tým i jeho hmotnosť.A non-return valve e.g. according to British patent no. No. 1,136,091, wherein the spindle of the sealing element is springed above the sliding bearing, so that its thrust force is adjustable. The actual sealing element is converted as a spherical segment of the abutment; The disadvantage of these known solutions is especially the difficulty of assembling the sealing element, laborious and thus costly production, by including a check valve between the evacuated part and the pump piping set, the construction length of the aggregate and thus its weight are extended. .

Nevýhody a nedostatky známých riešení odstraňuje vynález, ktorým je žpátný ventil najmá preDisadvantages and drawbacks of the known solutions are overcome by the invention, which is the most suitable valve

I vývevy, tento pozostáva zo sacieho potrubia s pri- i pojovacím hrdlom, kde tesniaci element je tvořený driekom na ktorom je uložené medzi dvomi ί přítlačnými kružkami pryžové tesnenie. Jeho podstata spočívá v tom, že sade potrubie je v mieste j pripojovadeho hrdla opatřené pologulovou komorou, otvorenou smerom do pripojovadeho hrdla, i pričom v přírubě pripojovacieho hrdla je vsuvne i uložené vodiace teleso, pozostávajúce z dosadacej příruby a z nákružku, ktorého čelná plocha tvoří tesniacu plochu tesniaceho elementu.Also, the pump consists of a suction pipe with a connecting neck, where the sealing element is formed by a shaft on which a rubber gasket is placed between the two pressure rings. It consists in that the pipe set is provided with a hemispherical chamber at the j-junction, which is open towards the junction, and the connecting flange has a guide body consisting of a seating flange and a collar, the end face of which forms a sealing the surface of the sealing element.

Podstata vynálezu spočívá dalej v tom, že v dutii ne nákružku je upravené pomocou priečnych ‘ ! rebier klzné ložisko pre vedenie tesniaceho elementu. Jeho krajné polohy sú mrčené jednak osadenim drieku a tiež matici.The principle of the invention is further characterized in that it is provided in the hollow flange by means of transverse ‘! ribs sliding bearing for guiding the sealing element. Its extreme positions are mutilated both by fitting the shank and nut.

Vyšší účinok vynálezu spočívá predovšetkým v zjednodušení konštrukcie i zjednodušení montáže tesniaceho elementu, ktorý sa vloží ako celok s vodiacim telesom do pripojovadeho hrdla sadeho potrubia, v skrátení stavebnej dížky agregátu i 2 a tým i v znížení jeho hmotnosti, pretože odpadá celá dížka telesa ventilu.The greater effect of the invention is primarily to simplify the construction and simplify the assembly of the sealing element which is inserted as a whole with the guide body in the connection sleeve of the line pipe, to shorten the construction length of the unit 12 and thereby reduce its weight.

, Příklad konkrétného prevedenia vynálezu je' schématicky znázorněný na pripojenom výkrese znázorňujúcom osový rez ventUovej časti medzi sacím potrubím vývevy a evakuovanou častou. iAn example of a particular embodiment of the invention is shown schematically in the accompanying drawing showing an axial section of the valve portion between the pump intake manifold and the evacuated portion. and

PodTa vynálezu je sade potrubie 1 vývevy I 2 opatřené v mieste prípojovadeho hrdla 3 k evakuovanej časti 4 upravená pologutová komora 5 vyústěná do prípojovadeho hrdla 3. V prírube ! 6prípojovadeho hrdla 3 je vsuvne uložené vodiace teleso 7 tvořené dosadacou přírubou 8 a nákružkom 9 v jeho dutině je pomocou priečnych rebier 10 upravené klzné ložisko 11. Medzi dosadacou , přírubou 8 nákružku 9 a přírubou 6 prípojovadeho hrdla 3 je vložené tesnenie 12. Vlastný tesniad , element 13 pozostáva z drieku 14 opatřeného zo j strany sadeho potrubia 1 pryžovým těsněním 15 iiAccording to the invention, a set of piping 1 of the pump 12 provided at the point of the connection socket 3 to the evacuated part 4 is provided with a half-chamber 5 that opens into the connection socket 3. In the flange! 6the connecting throat 3 is a sliding bearing guide body 7 formed by the seating flange 8 and the collar 9 in its cavity a sliding bearing 11 is provided by means of transverse ribs 10. A sealing 12 is inserted between the seating flange 8 of the collar 9 and the flange 6 element 13 consists of a shank 14 provided with a rubber seal 15 ii

.......j [ zovretým medzi dvoma přítlačnými krúžkami 16, (17, z nich vnútomý přítlačný krúitok 17 přibližovaný ku klznému ložisku 11 má priemer zodpovedajúd vnútomému príemeru nákružku 9 vodiaceho i telesa 7. Dížka posuvu tesniaceho elementu 13 je í obmedzená jednako osadením 18 drieku 14 a maticou 19 uloženou na konci protiíahlom drieku 14. Čelná' plocha na krúžku 9 je upravená tak, že tvoři) tesniacu plochu 20 pre záběr s tesniacim elemenI tom 13.Clamped between two thrust rings 16, (17 of which the inner thrust ring 17 approaching the sliding bearing 11 has a diameter corresponding to the inner diameter of the collar 9 of the guide and body 7. The displacement length of the sealing element 13 is limited. however, the shoulder 18 of the shank 14 and the nut 19 mounted at the end of the opposing shank 14. The face surface on the ring 9 is adapted to form a sealing surface 20 for engagement with the sealing element 13.

I V případe vytvárania vákua v evakuovanej časti 4 je výveva 2 v činnosti a tesniad element 13 je v polohe znázornenej na výkrese, teda v otvorenej polohe, takže nebráni odsávaniu vzduchu z evakuovanej časti 4. Po dosiahnutí požadovaného stupňa I vákua, sa výveva 2 odstaví a tesniad element 13 je podtlakom v evakuovanej časti 4 přisátý na tesniacu plochu 20 nákružku 9 vodiaceho telesa 7.In the case of creating a vacuum in the evacuated part 4, the vacuum pump 2 is in operation and the sealing element 13 is in the position shown in the drawing, i.e. in the open position, so as not to obstruct the evacuation of air from the evacuated part 4. The sealing element 13 is sucked in the evacuated part 4 by suction onto the sealing surface 20 of the collar 9 of the guide body 7.

Claims (2)

j PREDMETj SUBJECT 1. Zpatný ventil, najma pre vývevy opatřené sacím potrubím s připojovacím hrdlom, kde tesniaci element je tvořený driekom, na ktorom je uložené medzi dvoma přítlačnými krúžkami pryžové tesnenie, vyznačujúce sa tým, že sade potrubie (1) je v mieste prípojovadeho hrdla (3) opatřené) pologulovou komorou (5), otvorenou smerom do prípojovadeho hrdla (3), pričom v prírube (6) prípojovadeho hrdla (3) je vsuvne uložené vodiace,Non-return valve, in particular for vacuum pumps having a suction line with a connection socket, wherein the sealing element is formed by a shaft on which a rubber seal is disposed between two thrust rings, characterized in that the tube set (1) is at the connection socket (3) provided with) a hemispherical chamber (5), open in the direction of the connection throat (3), the guide throat (3) being slidably mounted in the flange (6) of the connection throat (3), VYNÁLEZUINVENTION I teleso (7), pozostávajúce z dosadacej príruby (8) a z nákružku (9), ktorého čelná plocha tvoří tesniacu plochu (20) tesniaceho elementu (13).A body (7), comprising a bearing flange (8) and a collar (9), the end face of which forms the sealing surface (20) of the sealing element (13). 2. Zpatný ventil podlá bodu 1, vyznačujúci sa tým, že v dutině nákružku (9) je upravené pomocou priečnych rebier (10) klzné ložisko (11) pre . vedenie tesniaceho elementu (13), ktorého krajné plochy sú určené jednak osadením (18) drieku (14) a maticou (19).Check valve according to Claim 1, characterized in that a sliding bearing (11) is provided in the cavity of the collar (9) by means of transverse ribs (10). guiding the sealing element (13), the outer surfaces of which are determined on the one hand by the shoulder (18) of the shank (14) and the nut (19).
CS884579A 1979-12-17 1979-12-17 Check valve particularly for the vacuum pumps CS207448B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS884579A CS207448B1 (en) 1979-12-17 1979-12-17 Check valve particularly for the vacuum pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS884579A CS207448B1 (en) 1979-12-17 1979-12-17 Check valve particularly for the vacuum pumps

Publications (1)

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CS207448B1 true CS207448B1 (en) 1981-07-31

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CS884579A CS207448B1 (en) 1979-12-17 1979-12-17 Check valve particularly for the vacuum pumps

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