Valves and valve actuation – Mechanical movement actuator – Gear
Patent
1984-09-28
1986-09-30
Walton, George L.
Valves and valve actuation
Mechanical movement actuator
Gear
2512495, F16K 3154
Patent
active
046143297
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a cock or valve comprising a handle for rotating the plug of the cock or the valve body by means of a stem, and wherein a gear transmission is provided between the handle and the stem, one part of the gear transmission being constituted by an internal and centrally in the handle secured gear wheel, and wherein the handle is formed as a part of a housing which together with a housing element, which is non-rotatably connected with the housing of the valve or cock, form a cavity wherein the gear transmission is arranged
2. Prior Art
A cock or valve of the kind referred to above is disclosed and explained in the applicant's prior Danish patent application filed Mar. 30, 1978, sub application No. 1417/78, with the title "Valve or cock comprising a gear wheel transmission", the documents of this application having been made available to the public on Sept. 30, 1979. According to the valve or cock disclosed in the noted application, the gear wheel transmission is constituted by a planet gear comprising four planet wheels arranged upon a planet wheel support, and which engage with an internal toothed rim in the housing element which is secured to the valve or cock housing. The gear wheel centrally arranged in the handle serves as sun wheel for the planet wheels and the planet wheel support is coupled to the stem of the cock plug or the valve body.
SUMMARY OF THE INVENTION
The cock or valve according to the present invention is characterized in that the handle is positioned with the central axis of the handle displaced parallel to the axis of the stem, the stem moreover being non-rotatably connected with a gear wheel sector at the axis of the gear wheel sector, the teeth of the gear wheel sector moreover engaging with the teeth of the gear wheel of the handle. By means of this structure a very simple gear wheel transmission is achieved because for such transmission only the gear wheel of the handle and the gear wheel sector are needed and the parallel displacement of the axis of the handle with respect to the axis of the stem simultaneously offers a high leverage which, in connection with the fact that a high moment of force may be applied to the gear wheel of the handle due to the central positioning thereof, results in that it is only necessary to apply a small force to the handle in order to rotate the cock plug or the valve body. Simultaneously, the gear transmission may be constructed very compact in such a way that only minimal requirements must be fulfilled in order to accomodate the gear transmission and, accordingly, the handle and the housing element may be constructed with corresponding small dimensions, whereby it is achieved that the cock or valve according to the present invention may be produced with small dimensions and may be given an appealing appearance.
An embodiment of the cock or valve is according to the invention characterized in that the teeth of the gear wheel sector face inwardly towards the axis of the gear wheel sector. By means of this embodiment it is achieved that the handle obtains the same direction of rotation as the stem, and accordingly also as the cock plug or valve body, whereby a high degree of security against false manoeuvring of the cock or valve is achieved.
A further embodiment of the cock or valve is according to the invention characterized in that the teeth of the gear wheel sector extend along an arch of a circle of approximately 90.degree., that the gear wheel of the handle is provided with teeth along the full circumference and that the number of teeth of the gear wheel of the handle generally corresponds to the number of teeth of the gear wheel sector. This embodiment is of particular importance in connection with cocks or valves wherein only a rotation of 90.degree. of the cock plug or valve body is necessary because this embodiment results in that a full rotation of the handle will correspond to a quarter of a revolution of the cock plug or the valve body.
A further embodim
REFERENCES:
patent: 1055117 (1913-03-01), Woodworth
patent: 1456697 (1923-05-01), Kitts, Jr.
patent: 1924886 (1933-08-01), Semon
patent: 1951121 (1934-03-01), Babcock
patent: 1969375 (1934-08-01), Laurent
patent: 3026741 (1962-03-01), Schaverien
patent: 3679170 (1972-07-01), Bernas et al.
patent: 3744752 (1973-07-01), Massey
patent: 3776507 (1973-12-01), Tomlin et al.
patent: 4093180 (1978-06-01), Strabala
patent: 4141538 (1979-02-01), Bake et al.
patent: 4230300 (1980-10-01), Wiltse
Hansen Anders
Jepsen Bjarne
Broen Armatur A/S
Walton George L.
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