Valves and valve actuation – Mechanical movement actuator – Particularly packed or sealed
Patent
1988-07-07
1990-02-13
Walton, George L.
Valves and valve actuation
Mechanical movement actuator
Particularly packed or sealed
277152, 277165, 277212C, 277212F, 137315, F16K 4108, F16K 4300, F16J 1532
Patent
active
048999822
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to an upper valve component for sanitary fixtures, the component including a sleeve-like head fastenable in a valve housing and a rotatable spindle penetrating the center of the head and equipped with a socket head. Annular faces with which the spindle is radially guided in the head and grooves interrupting the annular faces, some of them accommodating sealing rings, are provided on the exterior of the spindle.
PRIOR ART
Upper valve components of the above-mentioned type are known from DE-C-3,207,895 and DE-A-3,323,008. The following problem occurs in connection with the prior art upper valve components: a slight amount of radial play exists between the spindle and the head and this is transferred by way of the socket head to the pressed-on handle of the fixture and--since the handle has a significantly larger radius than the spindle--gives the impression of a considerable amount of play. Moreover, if such fixtures having upper valve components are mounted horizontally on a wall and have heavy asymmetrical handles which thus exert a torque on the spindle of the upper valve component, it may happen that the handles pivot automatically from a radially upper position to a radially lower position when the valve is open.
DESCRIPTION OF THE INVENTION
The invention is intended to remedy this situation. It is the object of the invention to configure an upper valve component of the above-mentioned type in such a manner that play between spindle and head as well as undesired pivoting movements between spindle and head are avoided. This is accomplished according to the invention in that, on its inner edge facing the socket head, the head is provided with an annular recess into which is pressed an essentially sleeve-shaped, pre-tensioned bearing of limited elasticity so that it rests against one of the annular faces of the spindle and is in locking engagement with one of the grooves.
The pre-tensioned bearing prevents play between spindle and head in the radial direction as well as the inadvertent pivoting of the spindle in the head, even if the upper valve component is installed horizontally and a heavy asymmetrical fixture handle is employed. A further advantage of the invention is that the bearing takes over the function of the elastic packing as well as that of one of the sealing rings.
BRIEF DESCRIPTION OF THE DRAWINGS
One embodiment of the invention is illustrated in the drawing figures and will be described in greater detail below. It is shown in:
FIG. 1, a longitudinal sectional view of an upper valve component;
FIG. 2, an enlarged sectional view to a scale of 5:1 of FIG. 1 in the region of the bearing.
BEST MODE OF IMPLEMENTATION OF THE INVENTION
The upper valve component selected as the embodiment is screwed into the housing of a sanitary fixture, of which only part of the water intake channel is shown. The upper valve component includes a head 1, a spindle 2 penetrating the center of the head 1 and radially guided therein as well as a driver 3 which is form-lockingly connected with the spindle 2 and is radially guided in head 1. Between head 1 and spindle 2, on the side facing away from the water inlet, there is disposed a bearing 4. On the side of the water inlet, in the region of its end face, head 1 carries a first valve seat disc 5 of a ceramic material and a sealing ring 7 which projects beyond its end face. On the water inlet side, a second valve seat disc 6 of ceramic material is provided at the end face of driver 3.
Head 1 has the shape of a sleeve, i.e. it is composed of a rotationally symmetrical hollow body with, however, differing inner diameters, and its two end faces are open. In its interior, essentially in its center, head 1 has two axially spaced shoulders 14, 16. Spindle 2 is essentially solid and includes a socket head 20 in a multi-edge configuration 21 which is provided in its interior with an internally threaded blind bore 22 for fastening a handle (not shown). On its exterior, spindle 2 is provided with annular faces 23 with wh
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Fluhs Drehtechnik GmbH
Walton George L.
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