Fixing system and joint, for fixing an actuator to a valve
AssigneeFerrero Rubinetterie S.R.L.
InventorRiccardo Ferrero
Life of this patent
Estimating the term…
Abstract
An actuator (1) is fixed on a valve (2) through a fixing joint (3) which comprises a tubular sleeve (32) on which a tightening nut (30) is screwed; the nut (30) and the sleeve (32) are provided with a conical thread connection (34, 300); by screwing the nut (30), a plurality of longitudinal prolongations (40), arranged in a crown around the axis of the sleeve (32), tightens on a fixing head (20) of the valve (2), firmly fixing the actuator (1) to the valve (2); the joint at issue provides an alternative to a flange connection, equally solid and resistant to unscrewing due to vibrations; by resting against a mechanical stop surface (24) the nut (30), being unscrewed, can act as an extractor that easily removes the joint (3) from the head (20).
Claims17
System for fixing an actuator to a valve, comprising:
- a valve, the valve comprises:
- a valve body defining inside a fluid passing duct;
- a closing member arranged for opening and closing the fluid passing duct;
- a fixing joint arranged for fixing an actuator to the valve, so as to allow the closing member of the valve to be driven at least by the actuator,
- wherein at least one of the valve and of the fixing joint comprises a fixing head and the other of the valve and the fixing joint comprises:
- a collar having a substantially tubular shape and defining, at a free end thereof, a fitting seat arranged for contracting and expanding, and for being fitted on the fixing head so as to be fixed on the fixing head;
- a blocking element fitted on the collar and arranged for contracting and expanding the fitting seat by moving relative to the collar, so as to fix the collar on the fixing head;
- the fixing joint comprising a connection shaft that is inserted in the collar, is rotatable about a rotation axis and comprises an upper end configured to engage the actuator and a lower end configured to drive the closing member and wherein the collar provides a plurality of prolongations arranged to tighten the collar on the fixing head when the blocking element moves along the collar.
Fixing joint for fixing an actuator to a valve provided with a fixing head, wherein the joint comprises:
- a joint housing comprising:
- a first connecting interface through which joint the housing can reversibly be fixed to the valve, wherein the first connecting interface comprises:
- a collar having a substantially tubular shape defining, at a free end thereof, a fitting seat arranged for contracting and expanding and for being fitted on the fixing head of the valve so as to be fixed on the valve;
- a blocking element fitted on the collar and arranged for contracting and expanding the fitting seat by moving relative to the collar, so as to fix the collar to the valve;
- a second connecting interface through which the joint housing can be reversibly fixed to the actuator;
- a connection shaft arranged in the joint housing so as to be rotatable relative to the joint housing around a rotation axis, so as to drive a closing member of the valve;
- and
- the fixing joint further comprising a connection shaft that is inserted in the collar, is rotatable about the rotation axis and comprises an upper end configured to engage the actuator and a lower end configured to drive the closing member and wherein the collar provides a plurality of prolongations arranged to tighten the collar on the fixing head when the blocking element moves along the collar.
Dependencies are inferred from the claim text.