DE1052917B - Float-controlled inlet valve, especially for toilet flush boxes, with a noise damper - Google Patents

Description

GERMAN

The invention relates to a float-controlled inlet valve, in particular for toilet cisterns with a silencer arranged on the outlet pipe of the valve.

In a known inlet valve of this type, there is a downwardly directed valve outlet pipe at the end a shower head through which the water is sprayed into the cistern. This facility as well as other well-known institutions. those with a throttle device or similar Means provided outlet pipe opens down into the cistern, have the disadvantage that under Under certain circumstances, water in the cistern can be sucked off backwards through the outlet pipe can. In addition, there is a clearly audible rush of water with the known noise suppressors not been avoided.

The invention overcomes the disadvantages outlined above in that the outlet pipe is closed at the end of the inlet valve is above the highest water level in the cistern and with water passage openings is provided over which a sleeve made of coarse-pored material, for. B. foam rubber or Plastic, is drawn up so that the inflowing water is sprayed into the cistern in a fine jet.

Further useful features and advantages of the inlet valve according to the invention are given below explained in more detail on the basis of the drawing, the single figure of which is a longitudinal section through a preferred one Embodiment shows.

The float-controlled inlet valve 2 is attached to the cistern 1. This inlet valve 2 has a housing 3 into which an inlet nozzle 4 is screwed, which at the same time forms the valve seat 5 . On the valve closure body 6 is the float? supporting float rod 8 articulated by means of a bolt 9. In this case, the float rod 8 is screwed into a ScheibelO seated on the bolt 9 , which has a shoulder 11 which lies in an annular groove 12 of a union nut 13. When the float 7 is lifted, the disc 10 pivots around its extension 11 and thereby presses the valve closure body 6 with its sealing insert 14 against the valve seat 5 via the bolt 9 , whereby the passage of the water from the inflow channel 15 to the annular space 16 is blocked.

At the top of the annular space 16 , an outlet pipe 17 is screwed, which has a short vertical leg 17 ' and a long horizontal leg 17 " which extends above the upper edge of the cistern 1. On the horizontal pipe leg 17", which at its free end through a screw cap 18 is completed, sits a sleeve 19 made of coarse-pored rubber. The cuff

Float-controlled inlet valve,
especially for toilet cisterns,
with a silencer

Applicant:

Gebert & Cie.,
Rapperswil, St. Gallen (Switzerland)

Representative: Dipl.-Ing. M. Licht, Berlin-Steglitz,
and Dr. R. Schmidt, Oppenau (Renchtal),
Am Ottersberg 457, patent attorneys

Claimed priority:
Switzerland from February 4, 1957

Paul Stähli, Rapperswil, St. Gallen (Switzerland),
has been named as the inventor

19 is located in a horizontal on the leg 17 "seated hollow cylindrical bush 20 which is closed by a closure ring 21, which is also on the tube legs 17" sits and is overlapped by the sleeve 20th The socket 20 has an outlet slot 22 at the bottom. The pipe limb 17 ″ is provided within the cuff 19 with a plurality of passage openings 23 through which the water can reach the cuff 19.

When the inlet valve 2 is open, the water flows through the outlet pipe 17 and the openings 23 into the coarse pores of the cuff 19 and emerges from the same in the area of the outlet slot 22 in the form of fine jets 24 . These rays are so fine that a spray hits the water in the container 1 without making a noise.

In the drawing, 25 is a nut, 26 is a sealing sleeve and 27 is a sealing ring. An insert pin 28 is guided in a longitudinal slot 29 of the housing 3 in order to prevent the valve closure body 6 from twisting.

In addition to noise damping, various other advantages are achieved by the inlet valve shown. Since the outlet slot 22 is located above the highest water level, it is avoided in a manner known per se that in the event of a disturbance in the inlet line or in the event of a sudden very. heavy withdrawal from the water network, for example through

809 769/30

Claims (3)

open a hydrant, the water in the cistern 1 can be sucked backwards through the outlet pipe. In the previously known arrangements, however, the float valve was arranged further down in the cistern 1 for this purpose and the outlet pipe was initially directed downwards and then bent upwards inside the container above the highest water level, resulting in a loss of usable container space. In addition to better utilization of the container space, the illustrated outlet device also ensures better closing of the inlet valve 2. H. that when the valve closure body 6 approaches the closed position, very little water flows through the valve and. hence the swimmer? is only lifted very slowly. For the waterworks, this has the disadvantage that a certain, by no means negligible, amount of water flows so slowly through the water meter that the latter no longer works. With the described arrangement of the outlet device, there is always a fairly high pressure in the annular space 16 when the valve 2 is open counteracts the closing of the valve Valve 2. The fact that coarse-pored rubber is a good soundproofing agent increases the effect of the sleeve 19, especially with regard to line noise in the cover not shown in the drawing of the cistern 1, a recess or a bulge for the outlet pipe 17, the socket 20, the locking ring 21 and the screw cap 18 can be arranged. Patent claims: 1. Float-controlled inlet valve, especially for toilet cisterns, with a noise damper arranged on the outlet pipe of the valve, designed as a spray distributor, characterized in that the outlet pipe (17) of the inlet valve (2) , which is closed at the end, is above the highest water level of the cistern (1) and is provided with water passage openings (23) through which a sleeve (19) made of coarse-pored material, for. B. foam rubber or plastic, so that the inflowing water is finely sprayed into the 'cistern (1). 2. Inlet valve according to spoke 1, characterized in that the sleeve (19 ) lies in a sleeve (20) designed as a hollow cylinder, which is provided with an outlet slot (22) . 3. Intake valve according to claim 2, characterized ge ¹ -kennzeichnet that the bush (20) consists of a unilaterally closed annular sleeve, the other end side ring by a closure (21) is covered. Considered publications:
Swiss Patent No. 191 497;
U.S. Patent No. 2,738,851. For this "! Sheet of drawings © 80 & 76m0 3.59