DE1931755U - BUTTERFLY VALVE, IN PARTICULAR FOR HOT WATER HEATING. - Google Patents

Description

ί. if

Essen, November 9, 1965

Patent Attorney (25o49 / Pre +)

Dr. Andre] ewsM,
43Essen, KettwigerStr. 36

CAiaHauptbahnhoi · tichtburs)
Telephone 25802

Utility model registration

of the company Karl zur Steege KG
Essen, Wandastr. 9

Butterfly valve, especially for hot water heating

Butterfly valves, especially for hot water heating, are in various embodiments known and exist in generally from a flap housing and a flap body pivotably mounted therein, as well as suitably arranged Seals between the valve body and the valve body. In the known embodiments of such butterfly valves often leaves the tightness to be desired in the closed state. Butterfly valves with adjustable seals have therefore already been proposed, but they have to be adjusted of these seals, since they are only accessible from inside the flap housing, the shut-off flaps are removed from the Pipeline to be expanded, which requires extremely laborious work. :;

The invention is based on the object of a shut-off: to design flap in such a way that their seals are easily readjusted and leaks without occurring

Removal of the butterfly valve can be corrected.

The invention relates to a butterfly valve, in particular. For Hot water heaters, consisting of a flap housing and a flap body pivoted in it, as well as adjustable ones Seals between the valve body and the valve body.

The invention consists in that grooves are provided in the flap housing, the width and / or depth of the outside are adjustable, and that elastic diehtmittel are inserted into the grooves, assigned to which sealing seats on the valve body are.

In particular, the invention can be implemented in various ways be realized. A preferred embodiment is characterized in that the sealing means are used as sealing rings and the grooves as annular grooves running around the valve body are executed, and that at least one groove side wall is formed by a clamping ring adjustable from the outside transversely to the groove is. The sealing rings are expediently designed as O-rings and the grooves have a cross-sectional shape adapted to the sealing rings, so that while the groove is narrowed Sealing ring is pressed further out of the groove, but with Security remains held in the groove.

To adjust the clamping rings, clamping wedges are preferably provided, which are attached to the lateral keJLlflflächen of the clamping rings; _: attack and by means of guided through the valve body

and clamping screws that can be operated from outside are adjustable. In the case of two parallel grooves, the groove side walls facing one another are expediently formed by a clamping ring each and the clamping wedges are arranged between the two clamping rings and work simultaneously on both clamping rings. It is advisable to arrange the clamping wedges evenly over the circumference of the valve body. Next is according to the invention provided that the clamping screws against the The valve housing is sealed and for this purpose sealing means, in particular O-rings, are inserted into the ring grooves of the clamping screw shaft are.

In structural terms, a particularly simple embodiment of the inventive shut-off valve is characterized in that the Klappengehäüse is cylindrical and on the inside an the one hand ι by a circumferential shoulder limited cylindrical guide surface for the - clamping rings has, on the other hand closed by a detachably inserted into the valve housing shoulder ring is, and that the shoulder and the shoulder ring form the fixed groove side walls associated with the clamping rings and the guide surface form the groove bases. Here, the shoulder ring is conveniently carried out in an open edge groove of the _flap: used housing and secured by axially set screws on the valve body.

The advantages achieved by the invention consist essentially in the fact that it is possible in the inventive shut-off valve "the Diehtmittel between the valve body and

Adjust the valve body from the outside, so that leaks can be remedied without removing the butterfly valve. this is in a preferred embodiment of the invention Butterfly valve in a structurally very simple and therefore ' Realized in a cost-saving and operationally reliable manner.

In the following the invention is based on only one Embodiment illustrated drawing explained in more detail; show it:

1 shows an axial view, partly in section, of a shut-off plate according to the invention,

Fig. 2 is a section in II-II through the butterfly valve according to Fig. 1.

The shut-off plate illustrated in the figures is .ins toes, intended for Warmwasserhexzungen and consists of a valve housing 1 and a pivotally stored flap body 2. In the valve housing 2 grooves are provided which are elastic sealing means 5 inserted in ■■, which sealing seats 4 on Flap body 2 are assigned. The grooves which the sealing means J> take on, are generally adjustable in width and / or depth from the outside, so that the sealing means 5 can be more or less pushed out over the groove edge by narrowing the groove cross-section, whereby the: sealing against the assigned Sealing seats 4 on the valve body 2 is improved. In the exemplary embodiment, the sealing means 3 & ls sealing rings and the grooves are designed as annular grooves running around the flap housing, which are only in their

The width can be adjusted, including at least one groove side wall 5 is formed by a clamping ring 6 which can be adjusted transversely to the groove from the outside. As shown in FIG. 2, the sealing rings are J5 designed as O-rings and the grooves have a Sealing rings adapted cross-sectional shape, so that the sealing rings remain securely held in the grooves at all times, even if they are are increasingly pushed out over the edge of the groove. To adjust the clamping rings β clamping wedges 7 are provided, which engage the lateral wedge surfaces 8 of the clamping rings 6 and by means of Clamping screws 9 are radially adjustable. These clamping screws are passed through the valve housing 1 and are accessible from the outside. The figures show an embodiment with two parallel grooves. In this case, the mutually facing groove side walls 5 are each formed by a clamping ring 6. Between These two clamping rings 6, the clamping wedges 7 are arranged, which work simultaneously on both clamping rings. The clamping wedges 7 are uniform over the circumference of the valve body distributed. The tensioning screws 9 are against the valve housing 1 sealed, for which purpose the clamping screw shafts have annular grooves 10 in the exemplary embodiment, in which suitable sealing means, esp. O-rings 11 are inserted, their associated Sealing surface through the wall of the clamping screw 9 receiving Hole 12 is formed in the valve body 1. \

The figures show a particularly simple embodiment in which the valve housing 1 is cylindrical and has a guide surface IJ on the inside for the clamping rings 6, which is supported on the one hand by a circumferential shoulder 14 and on the other hand by a shoulder ring 15 detachably inserted into the valve housing 1

is limited. The shoulder 14 and the shoulder ring 15 form the stationary side walls associated with the clamping rings 6 The shoulder ring 15 is in a groove 17 open on the edge of the flap housing 1 and fastened to the flap housing 1 by axially set screws 18. As a result, can the arrangement shown can be assembled in a particularly simple manner.

A η s ρ r ü c he

Claims (1)

RA.eG6t6Me.it.65 ' - Ύ - A η s ρ r ü o h e 1. Butterfly valve, especially for hot water heating; existing from the valve body and the valve body pivoted in it, as well as adjustable seals between the valve body and valve body, characterized in that in the valve housing (l) Grooves are provided that are wide and / or deep are adjustable from the outside, and that elastic in the grooves Sealing means (j) are inserted, which sealing seats (4) on the valve body (2) are assigned. 2. Butterfly valve according to claim 1, characterized in that the sealing means (5) are designed as sealing rings and the grooves as annular grooves running around the valve housing (l), and that at least one groove side wall (5) is adjustable from the outside transversely to the groove Clamping ring (β) is formed.. " ^: 5. Butterfly valve according to Claims 1 and 2, characterized in that that the sealing rings (j5) are designed as O-rings, and the grooves have a cross-sectional shape adapted to the sealing rings. ■ 4. Butterfly valve according to claims 1 to 3, characterized marked that for adjusting the clamping rings (6) Clamping wedges (7) are provided on the side wedge surfaces (8) of the clamping rings (6) attack and by means of the flap housing (l) guided and actuatable from the outside Tensioning screws (9) are adjustable. 5. Butterfly valve according to claims 1 to 4, characterized in that with two parallel grooves the one another facing groove side walls (5) each by a clamping ring (6) formed and the clamping wedges (7) between the two clamping rings are arranged, which work simultaneously on both clamping rings (β). 6. Butterfly valve according to claims 1 to 5, characterized in that the clamping wedges (7) are arranged evenly over the circumference of the valve housing (l). 7 · Butterfly valve according to claims 1 to 6, characterized characterized in that the clamping screws (9) are sealed against the valve housing (l) and for this purpose in annular grooves (10) of the clamping screw shaft sealant, in particular _: O-rings (11) are inserted. 8. Butterfly valve according to claims 1 to 7 j1 thereby characterized in that the valve housing (l) is cylindrical and on the inside one on the one hand by a circumferential Shoulder (l4) limited guide surface (lj5) for the clamping rings (6), which on the other hand is detachable in the valve housing (l) inserted shoulder ring (15) completed is, and that the shoulder (l4) and the shoulder ring (15) form the fixed groove side walls (l6) assigned to the clamping rings (6). 9. Butterfly valve according to claims 1 to 8, characterized characterized in that the shoulder ring (15) in an edge side Open groove (17) of the valve housing (1) inserted and axially set screws (l8) on the "valve housing (l) is attached. Patent attorney Dr Andre j ewski