DE1609233A1 - Siphon insert for urinals - Google Patents

Description

Dipk-tng. A. WEDDE Munich27, Schumannstf. 2 23 Sep. 1966

SVERNSI ΙΪΗΪ.Α. &., Zurich (Switzerland).

Siphon insert for urinals

In urinal systems, especially in those without water flushing, a drainage nozzle opens into each urinal bowl, in which a siphon insert is usually inserted, in order to prevent the rising of small items from the drainage pipe connected to the drainage pipe. The lower sub-unit of the siphon insert has the overflow pipe , which is provided with a foot piece protruding in the radial direction.The top of this foot piece slopes slightly towards its outer periphery and ends in the upper ring edge of an outer cone, by means of which the solidly formed The base of the siphon is located in the inner cone of the drainage socket.The upper part of the siphon insert has the bell with the inlet openings visible from above, with the dew tube extending radially inside the inlet openings and from the bottom of the bell downwards.

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This rope pipe surrounds the overflow pipe of the lower sub-unit with sufficient radial play and ends above the outer cone of the foot. The siphon pocket extends accordingly also above the outer cone of the foot piece and it becomes outside in the radial direction through the inner wall of the drainage nozzle. One of the two sub-units finally has additional support means in the mold from ribs »struts or extensions, by means of which the upper part of the siphon insert on its lower Partial unit parked and held in the required position · The outer cone in the foot piece and the corresponding one The inner cone provided in the drain is usually precisely ground to ensure a reliable seal to ensure · The common siphon inserts of this type consist of galvanized or tinned cast iron and they are therefore relatively heavy and expensive

In the above-mentioned siphontas now collect in the course the inevitable residues that eventually lead to a blockage of the siphon, if this is not subjected to regular cleaning · To carry out such a cleaning, the one with the bell is first provided sub-unit and then the one provided with the outer piece Partial unit lifted out of the drain socket · Both Partial units of the dismantled siphon insert as well as the

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Drain nozzles are on it at least by hosing down on all sides by means of a powerful jet of water from the residues to liberate »However, this work is perceived as unpleasant and reluctant to do it with sufficient thoroughness and care executed · It also happens frequently as a result of negligence before that when reinserting the siphon insert into the drain socket for the most varied of reasons, an only imperfect fit of the outer cone of the lower sub-unit results adjusts in the inner cone of the drainage nozzle, creating more or less pronounced drainage paths between the two conical ones Sealing surfaces result. As a result of such seepage paths but then the properly refilled siphon drains completely in a short time, so that through the empty siphon unhindered creeps rise from the drain pipe

The present invention relates to a siphon insert for urinal systems to be inserted into the outlet connection connected to the urinal bowl, the siphon insert having the bell provided with the inlet openings, the immersion tube, the overflow tube and a foot part, the latter being provided with an outer cone inner cone of the drain spout · Per Zweek the invention sits is the obm kura mentioned eliminate lack betriebSBiäseig occurring who siofc emerged in the maintenance and üeberaolung of Pissoir- anl & ea. According to the invention, this is

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achieved by the fact that the foot part is double-walled and one below the upper edge of its outer cone extending Has siphon pocket, and that furthermore the immersion tube extends into this siphon pocket to such an extent that its lower Edge runs below the upper edge of the outer cone · The advantages resulting from this as well as further details regarding the detailed design of the siphon insert according to the invention are explained in more detail below with reference to the exemplary embodiment illustrated in the drawing. In the drawing shows

Fig. 1 is an axial longitudinal section through the drain connection and the inserted siphon insert of a Pisso ir system, and

FIG. 2 is a cross section taken at 2-2 of FIG. 1 through the drain connection and the siphon insert

At the lowest point that is not illustrated in more detail in FIG. 1 The drainage nozzle 3 opens into the urinal bowl merges into a rejuvenation below · In this rejuvenation An inner cone 4 is ground, which serves as a seat for the siphon insert · The drain connection 5 is usually off Made of cast iron and has normalized dimensions throughout *

The siphon, as with the prior execution of two sub-units exist and accordingly be dismantled "The lower Taileinheit then consists of the overflow pipe 5 and the Fusstiiok 6, which jedooh not letateree as previously solid, but is double-walled, so that within ·

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16Ό9233

half of this foot 6 a siphon pocket 7 results in a tuck siphon also extends below the upper one Edge 3 of the outer cone 9, which is still attached in the foot piece 6. There are also three between the foot piece 6 and the overflow pipe 5 Reinforcing ribs 10 are present, the support shoulders 11 for setting down the further upper sub-unit of the siphon insert have »This upper sub-unit mainly consists of the immersion tube 12 and the bell 13 · At its outer periphery the bell 13 has inlet openings 14 recessed at regular intervals. The dip tube 12 is radially inward the inlet openings 14 are provided on the underside of the bell 13 » It extends downwards so far that its lower edge 15 resting on the support shoulders 11 is below the upper edge 8 of the outer cone 9 runs · the reinforcement ribs 10 also serve to center the pushed over Immersion pipe 12 opposite the overflow pipe 5

Usually the liquid level is the filled one Siphons approximately level with the upper edge of the overflow pipe 5 · Should now get out of any 0 & s $ fiBden Set the seepage path between the outer cone 9 of the siphon insert and the inner cone 4 of the drainage connector 3, so the The liquid level only drops to the height of the upper edge 3 of the outer cone 9 · The siphon pocket 7 remains in any case filled with liquid and since the Tauohrohr 12 always in the

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Siphontasohe T protrudes}, odors can escape from the drain line Under normal circumstances, do not go up through the siphon gases or vapors escaping from the outside are due to the small size Cross-section of the seepage paths in terms of quantity and per unit of time low »that experience has shown that they are hardly noticeable · In contrast to the previously known design of the siphon insert thus need the same in the described new design considerably less stringent requirements in terms of the seal between the outer cone 9 of the siphon insert and the inner cone 4 of the drain connection 3 · Ss is for this reason possible to depart from the previously required heavy and expensive design of the siphon insert and the sub-units of the same made from a cheap and easy-to-process plastic · Thermoplastics have proven to be particularly suitable for this Plastics and especially those based on Butadiene polystyrene. If the! Deil units 5 to 11 and 12 Up to 15 of the siphon insert made of such a plastic, so needs because of the smooth and homogeneous surfaces of the same and the good dimensional accuracy of the molded pieces obtained, the outer cone 9 of the junction piece no longer be ground. The production costs of such plastic siphon inserts can be kept so low that the time required for cleaning them is no longer worthwhile at all. It is then rather wixtsohaftliaher, a dirty or clogged '

Simply remove the siphon insert from the drain socket and to be replaced by a new, clean siphon insert then best destroyed and burned in an oven, for example, or charred «,.

Under the conditions described, however, the siphon insert itself no longer needs to be designed so that it can be dismantled To combine adhesive connections into a one-piece siphon insert. The adhesive connections are expediently between the radially outer ones
The end faces of the reinforcement ribs 10 and the inside of the immersion tube 12 are designed

When using the one-piece plastic siphon inserts explained, the periodic maintenance of the
Urinal system considerably simplified and also designed to be less uncomfortable

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Claims (3)

-JC- claims 1. Siphon insert for urinal systems to be inserted into the Urinal bowl adjoining drain connection, whereby the siphon insert the bell with the inlet openings, the immersion tube, the overflow pipe ,. as well as a foot part, which the latter, provided with an outer cone, sits in the inner cone of the drain connection, characterized in that the foot part (6) is double-walled and one below the top, edge (-8). its outer cone (9) has extending siphon pocket (7), and that furthermore the immersion tube (12) extends into this siphon pocket (7) so far that its lower edge (15) runs below the upper edge (8) of the outer cone (9) 2 · Siphon insert according to claim 1, characterized in that its sub-units (5 to 11 and 12 to 15) made of a thermoplastic Plastic and preferably made of a butadiene polystyrene 3. Siphon insert according to claim 2, characterized in that said sub-units (5 to 11 and 12 to 15) by means Adhesive connections are combined into a one-piece siphon insert " 109887/0384