DE2019817A1 - sprinkler - Google Patents

Description

Dr. A. Mentzel April 22, 1970

Dipl.-lng. W. Dahlke H-./L.

Patent attorneys

Ref rath near Cologne

Franco 137

If necessary / 3: jrinkier λ / 3

Sprinkler '■' ■ -.--

The invention relates to a sprinkler with a neck part that has a thread at one end and * at the other End has a protruding flange which carries two or more nozzles for a cross bridge, those with a plant part for one end of a temperature-sensitive Release element is provided, the other end of which is supported by a spring,

which has a closing part on an annular surface in the Neck part rests.

Sprinklers are known to be made from at least consist of two parts, one of which forms the neck and flange, while the other part forms the supports and forms the cross bridge. These two sprinkler parts are assembled in such a way that the release element is between these two sprinkler parts is clamped. That

009849/0246

The two parts are joined together, for example so that the parts arranged in the correct mutual position around the release element are deformed be fixed to one another in the stated position.

This known fastening method is inexpedient to the extent that it than the release element breaks easily during the deformation process. Also in production Consideration is the manufacture of a sprinkler from several parts with regard to the placement of the trigger element disadvantageous.

It is therefore the purpose of the present invention to provide a sprinkler whose neck portion, flange, Supports and cross bridge with contact surface can be cast in one piece. According to the invention, this is achieved by that one end of a bushing, which is inserted from the threaded end into the neck part, serves as an annular surface and liquid-tight ah this is attached after the release element, the spring and the closing part of the same neck end are used. This ensures that the release element can be used can after the neck part »the flange, the supports and the cross bridge with attachment part cast in one piece are. Since the finishing can be done in one operation, there is a precise distance between the contact part and the annular "contact surface, i.e. a precise pressure on the release ^ Xement is guaranteed.

0098 49/02 4 5 ■ ^;

In addition, the finished product has a higher strength. The inventive attachment of the temperature-sensitive Release element, in which one end of the element is supported by a spring, which rests on a ring-shaped socket via a locking device, the sprinkler can be adapted to various desired capacities by using different sockets.

According to the invention, the neck part can be on the inside

a. Area with small recesses, preferably f

have grooves running in the circumferential direction,

wherein the socket part opposite the recesses in the prescribed position of use from the inside of the socket can be deformed from beyond the flow limit in such a way that the bushing material enters the recesses penetrates. Advantages of this embodiment are: a secure fixation of the bush against axial displacement, a secure adjustment of the socket position and a durable watertight connection between socket and neck f part. In addition, a quick and easy assembly of the sprinkler is guaranteed in this embodiment.

The invention is explained in more detail below with reference to the drawing, which shows an embodiment of the sprinkler according to the invention in cross section.

The sprinkler has a neck part 1 that is attached to his

one end is provided with a thread 2 and at the other Has a protruding flange 3 at the end. Of the 009849/0245

Plansch carries two supports 4 for a cross bridge 5 with a part 6, on which one end of a temperature-sensitive Auslbseelements 7 rests, the other end of a washer 8 and a spring washer 8a, which rest via a closing part 9 on an annular contact surface 11 of the neck part. One end of the one serves as the contact surface 11

Bush 10, which according to the invention from the thread end in the neck part is inserted and liquid doves with it is connected after the trigger element, a spring and the closing part from the same end into the neck part are used. The half-part 1 has an inner area with grooves 12 running in the circumferential direction, which contribute to the liquid-tight fastening of the socket in the neck part. This fastening is done by that the prescribed after inserting the socket in eggs Position the socket part opposite the grooves from the inside of the socket over the flow limit addition is deformed in such a way that bushing material in the grooves 12 penetrates.

09849/0245

Claims (2)

-Patent claims 1. Sprinklers with a neck that has threads on one end and protrudes on the other Has splash, which two or more Carrying supports for a cross bridge, which is provided with an abutment part for one end of a temperature-sensitive trigger element, the other The end is supported by a spring which rests via a closing part on an annular surface in the neck part, f characterized in that one end of a bushing serves as an annular surface, which extends from the threaded end into the Neck part used and liquid-tight on this attached- · '£ st, after the Ausroseelement, the spring and the closing part inserted from the same neck end are. 2. Sprinkler according to claim 1 ', characterized in that that the neck part has an area on the inside with small recesses, preferably in the perimeter f direction running grooves, and that the In the prescribed position of use, the socket part opposite the recesses from the inside of the socket is deformed beyond the yield point in such a way that Bushing material penetrates into the recesses. L e r s e i i e