PL94345B1

PL94345B1 -

Info

Publication number: PL94345B1
Application number: PL1974175802A
Authority: PL
Priority date: 1973-11-22
Filing date: 1974-11-20
Publication date: 1977-07-30
Also published as: ATA796374A; JPS5089926A; GB1428596A; DE2358161B2; SE7412351L; CH570571A5; DE2358161A1; JPS5411932B2; FR2252517B1; BR7409446A; BE822507A; FR2252517A1; NL7413639A; SE406361B; AT339105B

Description

Przedmiotem wynalazku jest zawór zwrotny skladajacy sie ; jednoczesciowego korpusu, zaopatrzonego od strony wlotu w gniazdo zaworowe elementu zamykajacego wspóldzialajacego z gniazdem zaworu, sprezyny do¬ ciskajacej ten element zamykajacy w kierunku zamkniecia oraz z lozyska oporowego umieszczonego przy wylo¬ cie korpusu zaworu.The invention relates to a non-return valve consisting of; simultaneous body, equipped with the inlet side into the valve seat of the closing element interacting with the valve seat, the spring to the pressing this closure element towards the closure and the thrust bearing located at the the valve body.

Znane sa zawory zwrotne posiadajace w otworze wylotovym korpusu siegajacy az do plaszczyzny czolo¬ wej zlacza wpust schodkowy, do którego od strony wylotowej jest wmontowane i dodatkowo umocowane osiowo lozysko oporowe. W zaworach tych caly nacisk wywierany przy tym przez element zamykajacy i sprezy¬ ne na lozysko oporowe jest przejety przez laczniki, a przy wiekszych cisnieniach roboczych przede wszystkim przez sruby. Takie zamocowanie lozyska oporowego i zwezonej wokól lozyska oporowego plaszczyzny czolo¬ wej zlacza korpusu jest niekorzystne.Non-return valves are known having in the outlet opening of the body reaching up to the plane of the face a stepped inlet to which from the outlet side is mounted and additionally fixed axially thrust bearing. In these valves, the entire pressure exerted by the closing element and the spring The thrust bearing is taken up by fasteners, and above all, at higher operating pressures through the screws. Such an attachment of the thrust bearing and the face taper around the thrust bearing body connection port is disadvantageous.

Celem wynalazku jest uproszczenie konstrukcji i montazu tego rodzaju zaworów zwrotnych jak równiez wyeliminowanie wspomnianych wyzej laczników lozyska oporowego. Ponadto celem wynalazku jest zastosowa¬ nie jednostajnej powierzchni czolowej zlacza, siegajacej az do wolnego przekroju przeplywowego wylotowego korpusu zaworu, jak równiez zastosowanie zaworu przy duzych cisnieniach roboczych.The object of the invention is to simplify the construction and assembly of such non-return valves as well elimination of the above-mentioned thrust bearing fasteners. Furthermore, it is an object of the invention to apply non-uniform face of the joint extending up to the free outlet flow section valve body, as well as the use of the valve at high operating pressures.

Cel ten osiagnieto dzieki konstrukcji zaworu zwrotnego zgodnego z wynalazkiem, którego istota polega na tym, ze lozysko oporowe jest wykonane jakc element obrotowy w ksztalcie gwiazdy z promieniowo rozmiesz¬ czonymi ramionami, który jest wprowadzany ukosnie przez otwór wylotowy do wnetrza korpusu, gdzie jest przy montazu obracany, przy czym wolne konce gwiazdy lozyska oporowego opierajac sie osiowo przylegaja do sciany czolowej korpusu, otaczajacej otwór wylotowy naprzeciw wnetrza korpusu.This object is achieved by the construction of the non-return valve according to the invention, the essence of which is based on in that the thrust bearing is designed as a rotating element in the shape of a star with a radial spacing connected arms, which is inserted obliquely through the outlet opening into the body, where it is at the assembly is rotated, with the free ends of the thrust bearing bearing axially adjacent to an end face of the body surrounding the outlet opening against the inside of the body.

Na skutek tego rozwiazania uzyskano to, ze lozysko oporowe opiera sie teraz poczynaj, od wnetrza korpusu na wylotowej scianie czolowej korpusu, która w ten sposób przejmuje bezposrednio sily oporu, przez co odpada koniecznosc specjalnego mocowania tego lozyska. Poza tym z uwagi na wpust otworu wylotowego nie ulega zawezeniu powierzchnia uszczelniajaca.' Ponadto zawór ten jest szczególnie prosty i wygodny i szybki w montazu.94 345 -a nieobtoczone krawedzie uniemozliwiaja poslizgniecie sie sworznia 19 poprzez tuleje prowadzaca 18 i dostanie sie go wniepokazany na rysunku przewód rurowy znajdujacy sie poza zaworem, gdyby sworzen ten na skutek nieprzewidzianych okolicznosci oddzielil' sie od dlawiacego elementu zamykajacego. Element zamykajacy 4 i lozysko oporowe 6 maja wspólosiowo schodkowo wykonane otwory 21, 22 o stopniowanych srednicach dla osadzenia sprezyny 5. Sprezyna w zaleznosci od potrzeby moze miec wymiary równe wymiarom otworów tworzacych schodki. Ramiona nosne gwiazdy lozyska oporowego 6 sa na swych koncach zewnetrznych 8 wykonane w postaci zderzaków 23 dla dlawiacego elementu zamykajacego 4.As a result of this solution, it has been obtained that the thrust bearing now abuts, from the inside of the body on the outlet end wall of the body, which thus takes over the drag forces directly, thus There is no need to mount this bearing specifically. Besides, due to the key of the outlet opening, no the sealing surface is narrowed down. ' Moreover, this valve is particularly simple and convenient and fast in assembly 94 345 -a Untreated edges prevent the pin 19 from slipping through the guide bushing 18 and getting into the not shown pipe outside the valve, if this pin does it separated from the choking closure element in unforeseen circumstances. Closing element 4 and the thrust bearing on 6 have coaxially staggered holes 21, 22 with stepped diameters for spring seating 5. The spring, depending on the needs, may have dimensions equal to the dimensions of the holes forming steps. The support arms of the thrust bearing star 6 are at their outer ends 8 made in the form of bumpers 23 for a choke closing element 4.

Montaz zaworu zwrotnego wedlug wynalazku odbywa sie nastepujaco.According to the invention, the assembly of the check valve is as follows.

Dlawiacy element zamykajacy 4 w polozeniu poziomym wklada sie w korpus zaworu 1 poprzez otwór wylotowy 11. Otwór ten w tym celu posiada nieco wiekszy przekrój niz przekrój dlawiacego elementu zamykaja¬ cego 4. Nastepnie naklada sie sprezyne 5 na dlawiacy element zamykajacy 4 i wprowadza sie sprezynujacy pierscien osadczy 15 z drutu w rowek pierscieniowy 14 wykonany w scianie czolowej 10 korpusu. Gdy sworzen 19 zostanie wsuniety od dolu w tuleje prowadziaca 18 gwiazdy lozyska oporowego 6, lozysko to razem ze sworzniem 19 wprowadza sie poprzez otwór 11 do wnetrza 9 korpusu 1 w polozeniu skosnym, to znaczy dwoma ramionami nosnymi 7 skosnie w dól, a trzecim ramieniem skierowanym skosnie w góre. Tam lozysko oporowe 6 zostaje ustawione poziomo, przy czym tuleje prowadzaca 18 wsuwa sie w sprezyne 5. Lozysko oporowe 6 ustawia sie tak, aby prowadnice centrujace byly zwrócone w kierunku tej powierzchni scianki z otworu wyloto¬ wego 11, w której zostal zamocowany sprezynujacy pierscien osadczy 15 z drutu, calym swym poprzecznym w rowek pierscieniowy 14. Nastepnie do otworu wylotowego 11 wprowadzona zostaje pionowo gwiazda lozyska oporowego 6 az do zetkniecia sie wolnych konców 8 ramion nosnych 7 ze strona zewnetrzna sciany czolowej .In the horizontal position, the throttle valve 4 is inserted into the valve body 1 through the opening outlet 11. For this purpose, this opening has a slightly larger cross-section than that of the throttle closing element cego 4. Then the spring 5 is placed on the throttle closing element 4 and the resilient a snap ring 15 made of wire into a ring groove 14 made in the end wall 10 of the body. When the pin 19 will be inserted from the bottom into the guide bushing 18 thrust bearing stars 6, this bearing together with the pin 19 is inserted through the opening 11 into the interior 9 of the body 1 in an oblique position, i.e. with two with the carrying arms 7 diagonally downwards and the third arm inclined upwards. Thrust bearing there 6 is positioned horizontally, with the guide sleeve 18 sliding into the spring 5. Thrust bearing 6 is positioned so that the centering guides point towards this wall surface from the hole to the outlet wego 11, in which a spring-loaded snap ring 15 made of wire is mounted, with its entire transverse a bearing star is then inserted vertically into the outlet opening 11 until the free ends of the 8 support arms 7 touch the outside of the front wall .

Bezposrednio po tym poprzez obrót gwiazdy lozyska oporowego 6 wykonuje sie splaszczenie 16 pierscie¬ nia osadczego 15 w postaci nosków do uchwycenia ramion nosnych w wybraniach 13. Jedno z ramion nosnych 7 przytrzymuje przy tym zabezpieczajace przed przekreceniem zaglebienie w pierscieniu 17. Koniec montazu nastepuje ostatecznie przez wkrecenie sworznia prowadzacego 19 w dlawiacy element zamykajacy 4.Immediately after this, the flattening 16 of the ring is performed by turning the thrust bearing star 6 in the form of noses for grasping the arms in the recesses 13. One of the carrying arms 7 In doing so, it holds the anti-twist recess in ring 17. End of assembly is finally done by screwing the guide pin 19 into the throttle closing element 4.

W tym celu dla czworokatnego sworznia prowadzacego 19 lub zderzaka 24 przytrzymujacego dlawiacy element zamykajacy 4 powinno byc przewidziane narzedzie srubowe.For this purpose, for the square guide pin 19 or the stop 24 for holding the throttle the closing element 4 should be provided with a screw tool.

Claims

Patent claims

1. A non-return valve, usually consisting of a simultaneous body, provided on the inlet side with a valve seat that interacts with the valve seat of the closing element, a spring pressing this element in the closure design and a thrust bearing located at the outlet of the valve body against which it rests a spring rests at its free end, characterized in that the thrust bearing (6) is built-in as a star-shaped rotating element with radially arranged bearing arms (7), inserted diagonally through the outlet opening (11) into the interior of the body (1), where it is inverted during assembly, whereby the free ends (8) of the thrust bearing (6) stars abut axially against the end wall (10) of the body (1) surrounding the outlet opening (11) opposite the inside of the body (9).

2. A check valve according to claim The bearing of claim 1, characterized in that the support arms (7) of the thrust bearing star (6) are provided with radial centering guides (12) extending into the outlet opening (11) of the body (1).

3. A check valve according to claim 1 or 2, characterized by the fact that the thrust bearing (6) forms a recess (13) running vertically to the axis of the feed (13) along its centering guides (12), for which they catch the lugs (16, 17) of the snap ring (15) directed radially into the outlet opening ( 11) of the body (1).

4. Non-return valve according to claim 3. A method according to claim 3, characterized in that the securing lugs (16, 17) are formed by segmental passages of the through-hole of the spring-loaded ring, which is arranged in the annular groove (14) of the front wall (10) provided for this purpose, opposite the carving 13).

5. A check valve according to claim 4. A circuit as claimed in claim 4, characterized in that the spring-loaded snap ring (15) is a wire ring (15) having radial flattenings (16) on its periphery serving as securing lugs.

6. A check valve according to claim 4. The method according to claim 5, characterized in that the retaining ring (15) made of wire f rests on at least one flat (16) on the outside, a recess (17) in which one of the arms (7) engages holding the thrust bearing star (6). 94 345

7. A check valve according to claim The method according to claim 6, characterized in that the thrust bearing star (6) or the element of the closing head (4) have stepped stepped coaxially bored holes (21, 22) serving as support surfaces for the different diameters of the valve springs (5).

8. A check valve according to claim The method according to claim 7, characterized in that the support arms (7) of the thrust bearing star (6) at their ends (8) form bumpers (23) protruding towards the choke closure element (4), serving as limitations limiting the advance of this choke closure element .

9. A check valve according to claim The process as claimed in claim 8, characterized in that the thrust bearing star (6) has a coaxial guide bush (18) for the guide pin (19) provided at the locking element (4).

10. A check valve according to claim The method of claim 9, characterized in that the guide pin (19) is screwed into the locking element (4).

11. A non-return valve according to claim The method of claim 10, characterized in that the guide pin (19) forms radial edges (20) extending beyond the guide surface in the guide sleeve (18) of the thrust bearing star (6) at its end on the side of the throttle element (4).

12. A check valve according to claim 11, with the fact that the guide pin (19) is made in the shape of a polygonal rod.

13. A check valve according to claim 12. The method of claim 12, characterized in that the radially projecting edges (20) are formed by rolling the edges of the bar in the range of the guide (19).

14. A check valve according to claim 13, with the fact that the closure element (4) on the inlet side has an abutment surface (24) for a screw tool. 94 345 Fig. 1 13 7 6 19 7 \ 12 11 15 10 20 2194 345 Fig. 2 works. Typographer. UP PRL, circulation 120 + 18 Price: PLN 10