Gas valve including timer
AssigneeHwei Keh Enterprise Co., Ltd.
InventorJih-Ching Lai
Life of this patent
Estimating the term…
Abstract
An improved gas valve including a timer includes: a valve body including a direction indicating mark; a timer arranged in an interior of the valve body; a rotary knob connected to the timer and including a protrusion, the rotary knob being provided, in a circumferentially arranged manner, with a closure region, a full opening region at one side of the closure region, and a time counting region at an opposite side of the closure region; a stop device mounted to the valve body, the stop device being subjected to an elastic effect to reciprocally move between a stop position and a passage position in such a way as to be normally set at the stop position as being acted upon by the elastic effect and located on a rotating path of the protrusion of the rotary knob.
Claims8
An improved gas valve including a timer, comprising:
- a valve body, which is formed, in an interior thereof, with a valve compartment and is provided, in an exterior thereof, with an inlet opening extending to and in communication with the valve compartment and an outlet opening extending to and in communication with the valve compartment, a valve core being arranged in an interior of the valve compartment, the valve core being adapted to be operated by an external force to switchably set the inlet opening to be in communication with or not in communication with the outlet opening, a direction indicating mark being arranged on a surface of the valve body;
- a timer, which is mounted to the valve body and is fixed in the interior of the valve compartment, the timer being connected to the valve core to control opening and closing of the valve core;
- a rotary knob, which is arranged on the valve body and connected with the timer, the rotary knob having a bottom surface that is provided with a protrusion, the rotary knob having a top surface that is provided, in a circumferentially arranged form, a closure region, a full opening region at one side of the closure region, and a time counting region at an opposite side of the closure region;
- and
- a stop device, which is mounted to the valve body, the stop device being operated with an elastic effect to be reciprocally movable between a stop position and a passage position in such a way as to be set at the stop position as being acted upon by the elastic effect to be located on a rotating path of the protrusion of the rotary knob, wherein when the closure region of the rotary knob is in alignment with the direction indicating mark, the protrusion is in contact engagement with the stop device to prevent the closure region from moving to pass over the direction indicating mark, and when the stop device is at the passage position, the stop device is moved out of and does not stay on the rotating path of the protrusion of the rotary knob.
Dependencies are inferred from the claim text.