DE2002588A1 - Double back lock for drainage lines - Google Patents

Description

OiPL-CHiM. Dl.WlRNiH KOCH DiPL.-lNG * KLAUS DELf S

HAMBURO

2Q02588

DIMNG, RICHARD GLAWE DIPL-PHYS; DR. WAITER MOLL

MONCHiH

5Μβ KiaMrf SJ · Walliitroa · U · l «f If 33SS

MOO MiMh · »33 · Llallkerritr« ·· 30 ·! · (33 «34 ·

mam

iHKNACHiiCHTvöM

Munich

PASSA VANT-WER Kl

Mi ehe lbacher pltte b / Michelbach / ϊ Nassau

Back pressure double front foot for drainagei ^ Uhgßleitungea.

The invention relates to a double backflow lock

■ M

for drainage pipes, with a manually operated. Sealing element and an automatic one that can be actuated by the backwater Closure organ,

Double backflow locks are facilities in basement drains: and pipelines, in the event of backwater the excess

BATH ORIGINAL

prevention of low-lying rooms. For safety reasons, they must have both a hand- ■ have actuatable closure as well as an automatically actuating closure, the hand-actuated. The shutter should normally be closed and only be opened briefly to drain water should «Closing the manually operated lock is often a matter of convenience or forgetfulness Refrain from φ, so that the automatic closure often has the sole task of removing any backwater hold back. If the automatic lock is caused by dirt deposits, decaying foreign bodies or the like. blocked or leaking, the function of the entire double lock is thereby imprinted.

Dirt and foreign bodies washed up with the sewage in the direction of flow are usually carried through the Schrautzeimer upstream of the lock was retained. On the other hand, there is a risk that coarse dirt and foreign bodies will be strewn with the backwater advertise that block the automatic lock can. The invention aims to design a double backflow lock so that this risk is reduced.

For this purpose, according to the invention, the automatic closure member a locking device to hold back min-

. 2 - ^BAD ORIGINAL

109833/0168

desensι coarse Ve i-impurities seen in backflow line ^ upstream. ".- '"".-',:

- With this locking device it can in particular urn on the sieve or grille. To the unimpeded The drainage of the water to be drained off is not to be hindered in a preferred embodiment, the locking device designed as a flap opening in the outflow direction. This can be particularly advantageous if the grid or sieve forming the locking device with narrow openings 1st.

The flap that opens in the drainage direction needs but not designed as a sieve or grid or otherwise provided with openings. Rather, it can ge.näß a further embodiment of the invention as a waterproof seal forming an additional backwater seal Be formed flap. In this case too, of course, it fulfills its function, dirt and rubbish, and not just large parts of dirt, from to keep away the locking organs of the double backflow lock. . , -

The locking device or, if it is designed as a movable flap, also its holders, are preferably a separate structural unit that can be removed * ^: "- * · inserted into the double jam lock.

- 3 - ■ ORIGINAL BATHROOM

109833/0168 ^?

Embodiments of the invention are described below explained on the basis of the drawings. Show it:

Fig. 1 shows the double jam lock with an as Sieve flap trained locking device.

Fig. 2 shows the closure with one designed as a rigid sieve Locking device.

Fig. J5 the closure with a closing as watertight Flap trained locking device.

The illustrated jerk taudoppelVerschluß has a casing in one piece configured as a molded piece 1, the interior of which is accessible by a removable cover. 2 The interior is divided by a partition 3 into an inlet chamber 4 with mud bucket 5 and the closure members containing main chamber 6. In the main chamber S is provided as a manually operable closure is a means of hand wheel 7 and screw 8 can be raised and lowerable poppet valve 9 is provided which is opposite a valve seat Io with rubber seal acts. A float ball 11 serves as an automatic closing element, which is pressed against a rubber seal 12 on the underside of the valve seat Io by the water level rising when the water level rises (dashed position). A baffle 13 forms an ÖeruQhs-

Closure in the main chamber 6.

ORIGINAL BATHROOM - 4 -

109833/0166

A ring attachment 'I5 is inserted into the drainage socket 14, on which a flap 17 provided with sieve openings is pivotably mounted on a hinge 16 in such a way that they · by their weight as well as by any backwater a rubber seal 18 of the insert 15 is pressed. This sieve flap 17 prevents that coarser in backflow Dirt particles in the housing of the backflow double lock get and either the automatic lock .11 or block the manually operated lock9 or leak ^

can do. The flap is opened by leaking water on the other hand pivoted upwards so that they open the cross-section not significantly reduced. .

The normally draining water enters the inlet chamber 4 through the inlet grate 2o and deposits its contaminants in the dirt bucket 5. , Any coarser constituents still entrained are closed by a fixed sieve 21. held back so that they cannot get to the closure organs ■■ '_ ■' ■■■ 9 and 11. ''. _t ^ i

In the embodiment, according to Fig. 2 the blocking provision consists only of one _; Sieve plate 22 firmly connected to the housing 1. This also ensures that coarser dirt particles are held back;

^{; 5} _; BATH

109833/016 6

2Ü02588

Area of the sieve plate 22 is made up for again.

In the embodiment according to FIG. 3 , instead of the sieve plate 17, a watertight closing plate 17a is hinged to your pulling insert 15, which is pressed sealingly against the rubber seal 18 when backflow occurs and thus represents an additional automatic locking element. In this embodiment, no backwater at all normally gets into the main chamber 6 and the actual closure elements 9 and 11. so the water level rises slowly in the main chamber 6 with backflow until the float ball 11 is pressed against the seal 12, whereby it is practically impossible that this automatic closure is also leaky by penetrating foreign bodies.

The ring insert 15 is on the designated with I9 Bolted to the housing 1 and can after loosening the screws as a structural unit together with the attached to it Flap 17 or 17a are lifted out of the housing. This embodiment also makes it possible to deliver the double backflow lock optionally with or without the additional locking device.

109833/0166

Claims (5)

2 (102588 Claims; ί * J backwater double closure for drainage pipes, with a manually operable closure element, and an actuatable from the backwater -selbsttätigen Versehlußorgan, dadureh geke η η ζ eic la η et that the automatic Versclilußorgan (11) - a locking device (17, 17a, 22) for retaining at least coarse dirt is upstream seen in the backflow direction. 2. Backwater double closure Näen claim 1 , characterized ge k en η ζ e I η et that dis locking device (17, 22) is designed as a sieve or grid .. 3. Double backflow lock according to claim 1 or 2, characterized in that the locking device (17, 17a) is designed as a flap that opens against the backflow direction. 4. Rückstäudoppelveraohluß according to claim 3, characterized g eke η η ζ β Ig Kn β t that the Sperrvorriohtung (17a J as an additional β β Ibet active Bückst auverschluß forming waterproof flap is formed. 109033 / öiee 2Ü02588 5. backwater double closure according to claim; 5 or K, characterized in that the flap
(17, 17a) including suspension '16) and seat (15, IG) as
Removable unit is inserted into the rear double lock. BAD ORIGfNAL - 8th 109833/0166 tee rs e i-te