DE7246088U - LABORATORY BASIN DRAIN VALVE - Google Patents

Description

OR.-ΙΝβ. DIPL .. | N <», M. .C. DIP .. -ΡΗΥβ. OR. DIPL..H-MV .. HÖGER RIGHT TO GRIESSBACH - HAECKER PATENT LAWYERS IN 8TUTTBART

A 39 816 b

b - 135

Nov. 27, 1972

company

Blanc & Co.

7135 Oberderdingen

Plehinger Str. 59

Laboratory basin drain valve

The invention relates to a laboratory basin drain valve with a cup plate and a lower connecting piece for connection to common drain pipe connection devices.

In the known valves of this type, the lower connection piece is welded to the bottom of a laboratory basin, which makes the assembly cumbersome. Furthermore had to the lower end of the connecting piece can be threaded to fit over intermediate fittings and commercially available Connection devices to be able to connect the drain valve to a drain pipe.

A 39 816 b.:. '.. *.: · ■■■ -' · - ■■■ b - 135 - 2 -

Nov. 27, 1972

The invention was based on the requirement to create a corrosion-resistant laboratory basin drain valve which can be installed easily and quickly and, in particular, can be connected to the usual drain pipe connection devices without time-consuming preparatory work. In this connection it should be pointed out that there are essentially three common drain pipe connection devices on the market, namely a first in which the inner diameter of an elastic sealing ring is reduced by tightening it between the drain pipe and a union nut fitted thereon (Screw connection), a second, in which facing flanged flanges are tightened between clamping rings (flanged flange connection) ₍ and a third, in which a sealing ring provided with an inwardly protruding sealing lip is used by means of a clamp to open the gap between two pipe ends with the sealing lip which are each provided with an annular bead (so-called quick-fit connection).

The basic idea of the invention is now to give the consumer so many down to the various drain pipe connection devices to offer adapted connection pieces, as there are commercially available, such connection devices and to design the connecting pieces above all the same and in such a way that they no longer have to be welded to the pool floor. According to the invention, the above-mentioned object is achieved in that a set of connecting pieces is provided the lower ends of which correspond to the various drainpipe connection devices adapted and which are identical above and a contact surface for a seal between the pool floor

a 39 816 b -: "::. ·: '

b - 135 - "" 3 -

Nov. 27, 1972

and connection piece as well as an abutment for a tension screw engaging with its other end on the cup plate exhibit. In this way, the connecting piece and cup plate as well as the seal connected in between can be aligned with one another tighten and fasten together to ensure a good seal, with this in mind It should be noted that the use of lag screws between the cup plate and the lower connection piece of the common household sinks.

The invention thus not only allows a much faster assembly of the connection piece on the laboratory basin, but also a simpler and time-saving connection to a drain pipe with the help of commercially available connection devices, and finally, because of its simple structure, the drain valve according to the invention can be manufactured cheaply, and indeed also made of stainless steel, as is done in a preferred embodiment, so that it is completely corrosion resistant is.

With regard to the currently common connection devices the set of connecting pieces includes three such nozzles, which have a circular cylindrical end for the screw connection, have a flange for the flange connection or an annular bead for the quick-pit connection, while above all three connecting pieces have a flange, between which and the pool floor the seal with the help of mentioned tension screw is tightened.

A 39 816 b

b - 135 - 4 -

Nov. 27, 1972

So far, two types of goblet plates have been used, namely one type for stoppers and one for inserting so-called. Standpipes. In an advantageous development of the invention, it is now recommended that the goblet plate be embossed to provide such a depth, such a diameter and such a conicity that conventional stoppers and standpipes with metal cones can be used, so that one gets along with one type of goblet plate.

Further features and details of the invention emerge from the accompanying drawing of a Embodiment of the drain valve according to the invention with three different connecting pieces as well as description of the drawing; show it:

from three different connection pieces as well as / the following §

Fig. 1 is an axial section through a. Laboratory basin drain valve according to the invention with attached screw connection;

2 shows an axial section through the same drain valve, but with one for a flanged flange connection suitable connection piece, and

3 shows an axial section through the drain valve with a connection piece suitable for a quick-fit connection.

Figure 1 shows a broken out of a laboratory basin part of the basin floor 10, in which a circular Opening 12 is located. In this seated from stainless steel sheet embossed and punched cup plate 14 with a

A 39 816 b

b - 135

Nov. 27, 1972

conical wall area 14a and a rod 14c provided with drainage holes 14b. The latter also has a through hole 14d for a tension screw 16.

The laboratory basin drain valve according to the invention further comprises a first connection piece 18 with an upper flange 18a; otherwise the connection piece is purely circular-cylindrical. Inside a holding web is also welded 18b in it, ü-jr a through hole 18c has the lag screw 16 and is welded to the further a nut 18d for this lag screw.

Between the pool floor 10 and the upper flange 18a of the connecting piece 18 is now a corrosion-resistant seal 20, which can be tightened with the help of the tension screw 16, whereby the different parts of the drain valve are mounted together and on the pool floor at the same time.

The other parts shown in Figure 1 are commercially available, it is a screw connection on the market for connecting a drain pipe. This known screw connection has a threaded connector 22 with an external thread 22a, a union nut 2 4 with an internal thread 24a, a not substantially elastic intermediate ring 26 and an elastic sealing ring 28. When tightening the union nut 24, the elastic Sealing ring 28 deformed so that it not only rests tightly against the connecting piece 18, but also a firm, friction-locked one Connection guaranteed.

- 6 -

b - 135 r 6 -

Nov. 27, 1972

The cup plate 14 is designed so that in its conical Wall area 14a not only fits a commercially available stopper, not shown, but also one made of stainless steel sheet existing standpipe 30, which has a conical area 30a at the bottom, which in the conical wall area 14a fits. The cup plate 14 thus differs from the known cup plates for stoppers by the depth of their conical wall area 14a.

In FIGS. 2 and 3, parts that correspond to parts of the drain valve shown in FIG. 1 have been given the same reference numerals, but with the addition of a prime or two Strokes used. In addition, the drain valves according to Figures 2 and 3 differ only in the shape of the Connection piece from the valve according to Figure 1.

The connecting piece 18 'in Figure 2 has a flanged flange 18e' below, against which a flanged flange 40 a Drain pipe 42 is applied. In order to obtain a tight connection, two clamping rings 44 and 46 are provided between which is an elastic sealing ring 48 and the means Clamping screws 50 can be tightened against one another, whereby the crimped flanges 18e 'and 40 against one another at the same time be pressed. Figure 2 shows a.lao the usual Flare flange connection.

The connecting piece 18 ″ shown in FIG. 3 has an annular bead 18e ″, and a drain pipe closes at the bottom with an upper annular bead 52. The connection of the drain pipe with the connecting piece 18 "is now used by a so-called quick

72 ^ 6088 3/15/73

A 3S> 816 b b - 135

Nov. 27, 1972

Fit connection, which consists of a clamp 54 with tightening screw 56 and an elastic sealing ring 58, which with a sealing lip 60 engages between the annular beads 18e ″ and 52 and seals there when the tightening screw 56 is tightened.

From the above description and the drawing it can be seen that the drain valve according to the invention is merely through the tightening of screws can be mounted and connected to a drain pipe and that, depending on the connection device used, only the connection piece adapted to this must be used.

-B-

Claims (5)

> "Η ι r" * ι l t A 39 816 b b - 135 Nov. 27, 1972 Claims for protection 1. Laboratory basin drain valve with cup plate and lower Connection piece for connection to conventional drainpipe connection devices, characterized in that a Set of connecting pieces (18,18 ', 18 ") is provided, whose lower ends are adapted to the various drain pipe connection devices (22-28; 40,44-50; 54-60) and the are identical above and a contact surface (1> ϊ) for a Seal (20) between the pool floor (10) and connecting piece (18,18 ', 18 ") and an abutment (18b) for have a tension screw (16) engaging with its other end on the cup plate (14)., i /. 2. Drain valve according to claim 1, characterized in that the set comprises three connecting pieces that are below a circular cylindrical end has a flange (18e *) or an annular bead (ISe "), / 3. Drain valve according to claim 1 or 2, characterized in that all connecting pieces have a flange above (18a).] 4. Drain valve according to claim 1, characterized in that that the cup plate has an indentation (14a) of such depth, such a diameter and such a conicity, that conventional stoppers and standpipes (30) with metal cones (30a) can be used. 5. Drain valve according to one or more of the preceding claims, characterized in that all parts are made of stainless steel with the exception of the seal.