DE1863842U - O-RING SEAL ON ANY MOVING SPINDLE OR PISTON-LIKE PARTS OF FITTINGS. - Google Patents

Description

929-110.62 ..

0 ~ ring ~ diohtang on freely movable spindles or piston-like parts of fittings

The so-called ö «ßi ng (with a circular cut) is found as a * · sealing element "äiieh for spindles or bulb-like parts from small" * let s er faucets 'always' more widespread * With water valves, the very often used, especially with water nozzles objected, '3aJ3 "the Q-Ri'ng because of wear of its sealing surface as a result of abrasion, leaks for a relatively short time and therefore must be replaced. The cause of this deficiency is through the historical development of the G <-ring "theory. justified * ..

In the USA and in England the O ^ ring design was specially made for liquid or gaseous "media that are under very high pressures, So it was useful to move the "CWBing" too Spindles or bulge-like parts in a rectangular ring groove of certain depth "and" width ". Here the height pressure of the Medium squeeze the O ^ Rifig and seal it against the round slot between piston and cylinder on the side facing away from the medium press iso the O-ring keeps tight until its material is worn out by abrasion is consumed. * - - ....

This hat shape has now been made without hesitation when using the O-ring for moving spindles or piston-like parts also in "the most." stressed 'lasser nozzles taken over * ^ but here as a rule no "high ■" water pressure "acts on" the "©" ring, is the right tekige Groove shape disadvantageous. In the example of the "dispensing valves" is the one on the The water pressure acting on the spindle is usually so weak that it is incapable »· the O ~ ring "to see * and" so the seal leaks as soon as the insert « tension. .des © «ring that has been lost as a result of abrasion ·

To remedy this drawback, the present invention is for the O ~ Hing * -diction "with moving spindles or piston-like parts of fittings a "new" jorm of the ring groove proposed »it is through the drawing explains * _.._...

The following are shown as examples on a "four-fold enlarged scale: in Tig. 1'the previous type of export of the O-ring seal on the Spindle of a XLein ^ water heater and in its place in Mg * 2 die

proposed today "solution *" "

It denotes "ä the upper part of the valve body," b the movable spindle ^ e the ring groove "in the old form, -el the ring groove in the new" formv d the O ^ ring .and -WD ... the symbol of water pressure.

The old ring groove ' e "" is relatively narrow and rectangular, that is, the neck in the ring groove "is cylindrical. In contrast, the new ring groove el is considerably wider, and only in the lower part is the neck cylindrical here.""" N.äeh above conical * The neck can also only be conical in the area of the entire width of the lute.

The advantages of "the new Torrn" of the ring groove el are illustrated by the example as follows "marked: Maoh pushing the spindle b into the Upper part body '"ä" is the "©" ring ä ^ since it looks "upwards to a large extent stretch "ka." nn, very little tension and therefore is very small Water pressure (nozzle!) Its abrasion extremely low.Di "eser low But abrasion will have the consequence that a "very low water pressure." the 0-Ring.gegön advances the spindle cone, and so the seal

preserved*" ;-

Of course, the larger the doorway, the more intense it will be Water pressure is: "" *

It is "therefore evident that when the water pressure is weak, the ö-ring will retain its sealing properties for a very long time - and

Claims (1)

it is just as obvious that at high water pressures "his life" be-the-same in the long run .. will-be-like. with the old Bingnut. e * Since the old lörffi'der input "" © ■ ", as explained," "at very low Pressure of the medium "the O-input only a short-term covering Property "granted, means." The present invention for "the very large area of the AYmät'üren, in which a low "pressure of the Medium "comes into question, a large technical and economic Progress* Safety requirements O «In» Dichtuhg'än ^r b "any 'movable' spindles or piston-like parts"von'Armatur e "hj characterized in that the width 'of the Eihgnut (' el ') is about' twice as large as' the cross section. · * Diameter of the O ^ Bihges "Td) ₄ ¹ that within the Einnüt" (el) the neck of the "spindle b'ezw,""of the piston-like part (b) only in the lower Area tie "so far" usual cylindrical, on the other hand. In the .oberen area conical ^ designed "is so /" that with the decrease of the insert « tension of the O-inlet (d) "due to abrasion a low water pressure (or lower "pressure 'ejies' other medium) the 0" .Eihg (d) in' Eichtuhg to the Spi'ndelkonüs "(or * partial cone) move, and" so that Sealing 'works automatically for a long time despite constant abrasion ** can hold, O-ring "Dichtuhg öh" arbitrarily "movable" spindles or piston-like ' Share 'of "fittings" according to claim t, - however, "characterized that the neck "the" Spi'iidelbezw * the kölbenartlgen part (b) in the area the entire width of the insertion groove (o1) is only designed conically.