DE202005005553U1 - Outlet valve, comprising conical area with circular groove for accommodation of sealing ring - Google Patents

Abstract

The outlet valve (1) is assembled of a housing (2) and a locking element (4) accommodated within the housing (2). The locking element (4) has a conical rear area with a circular groove holding a sealing ring (7) touching the inner surface (8) of the housing (2) when the valve (1) is closed. Four transversal bores (9) are connected to the inner space (10). For opening the valve (1) the textured front area (11) of the locking element (4) is rotated moving the element (4) towards the front and releasing the sealing ring (7) from the groove. The water can flow freely through the bores (9) and through the inner space (10).

Description

The The invention relates to a drain valve for insertion into a shut-off valve, with a in a housing via a thread in closed and open position axially movable closure body.

Known In particular, drain valves allow for larger systems just a drain that takes a relatively long time.

Of the Invention has for its object to provide a drain valve, which allows a fast emptying of a system and easy to use is.

These The object is achieved in that the closure body on inner closed end of a conical outer ring surface with an immediately behind it provided first circumferential groove for receiving a closed position on a conical inner ring surface of the housing adjacent first O-ring and behind the first O-ring several in the cavity of the closure body leading transverse holes and a further circumferential groove for receiving a second O-ring, on a cylindrical inner surface of the housing of the drain valve seals.

Appropriately points the closure body at the outer end a knurled one peripheral surface as well as an external thread for screwing on a protective cap.

The Invention will now be described with reference to the drawings, the one embodiment demonstrate. It shows

1 in an enlarged view a side view of the closed drain valve, half-cut longitudinally,

2 in an enlarged view a perspective view of the drain valve,

3 in an enlarged view of the closure body of the drain valve and

4 in an enlarged view, the housing of the drain valve.

This in 1 illustrated, usually made of brass complete drain valve 1 , which is preferably screwed into the housing of a shut-off valve (not shown) consists essentially of two parts: a housing 2 and one in it over a thread 3 axially adjustable closure body 4 that enlarges into 3 is shown.

At the inner closed end, the closure body 4 a conical outer ring surface 5 and immediately behind a first outer annular groove 6 for receiving a first O-ring 7 on, in the closed position of the drain valve 1 on a conical inner ring surface 8th of the housing 2 is applied.

Behind the first O-ring are several, here for example four cross holes 9 provided in a cavity 10 the closure body 4 to lead. At the outer end, the closure body 4 a knurled peripheral surface 11 for opening and closing the drain valve 1 as well as an external thread 12 for screwing on a protective cap, not shown, which is captive with the drain valve 1 or with the closure body 4 , for example, connected to a chain.

To open the drain valve 1 after unscrewing the protective cap, not shown on the knurled peripheral surface 11 the closure body 4 over a thread 13 turned back so that the first O-ring 7 from the conical inner surface 8th of the housing 2 is dissolved and the medium (water) of the system through the cross holes 9 and the cavity 10 the closure body 4 can drain away. When opening and closing the drain valve 1 slides a second O-ring 14 in another circumferential groove 15 the closure body 4 sits, over a cylindrical inner surface 16 of the housing 2 ,

1

drain valve gen.

2

Housing of 1

3

Thread of 4

4

closure body

5

conical outer ring surface of 4

6

first circumferential groove for 7

7

first O-ring

8th

conical inner ring surface of 2

9

Cross bores of 4

10

Cavity of 4

11

knurled peripheral surface of 4

12

external thread for protective cap

13

thread (to open and closing)

14

second O-ring

15

Circumferential groove for 14

16

cylindrical inner surface of 2

Claims (2)

Discharge valve for insertion into a shut-off valve, with a housing in a housing in the closed and open position axially movable closure body, characterized in that the closure body ( 4 ) at the inner closure NEN end a conical outer ring surface ( 5 ) with an immediately behind provided first circumferential groove ( 6 ) for receiving a in a closed position on a conical inner ring surface ( 8th ) of the housing ( 2 ) adjacent first O-ring ( 7 ) and behind the first O-ring ( 7 ) several in the cavity ( 10 ) of the closure body ( 4 ) leading transverse bores ( 9 ) and another circumferential groove ( 15 ) for receiving a second O-ring ( 14 ), which on a cylindrical inner surface ( 16 ) of the housing ( 2 ) of the drain valve ( 1 ) seals. Discharge valve according to claim 1, characterized in that the closure body ( 4 ) at the outer end a knurled peripheral surface ( 11 ) and an external thread ( 12 ) for screwing on a protective cap.