Valve Control Device
OwnerDavid Anthony Changinventor
Life of this patent
Estimating the term…
Abstract
A valve control device includes a housing provided with a control shaft, a motor for driving the control shaft to rotate, a control circuit board connected to the motor, and a sensor for detecting a rotational position of the control shaft. The sensor is connected to the control circuit board, which controls the motor to drive the control shaft to rotate in response to a position signal returned by the sensor. The valve control device may further include a position pointer, an indicating light, or a buzzer to facilitate observation of the opening and closing position of the valve.
Claims19
A valve control device comprising:
- a housing;
- a control shaft provided in the housing;
- a motor for driving the control shaft to rotate;
- a control circuit board connected to the motor;
- and
- a sensor for detecting a rotational position of the control shaft, the sensor being connected to the control circuit board, the control circuit board controlling rotation of the motor according to a position signal returned by the sensor so as to drive the control shaft to rotate;
- wherein the sensor comprises a position signal generating device having a positioner paddling plate and a position-following plate, the positioner paddling plate being rotatable synchronously with the control shaft, and connected with the control circuit board, the position-following plate being secured within the housing, the control shaft passing through the position-following plate, the positioner paddling plate being in contact with the position-following plate, the position signal generating device having the position-following plate and the positioner paddling plate being connected to the control circuit board, and when the control shaft rotates, the position-following plate outputs a position signal corresponding to the rotational position of the control shaft.
A valve control device comprising a housing, a control shaft provided in the housing, a motor for driving the control shaft to rotate, and a control circuit board connected to the motor, characterized by further comprising a sensor for detecting a rotational position of the control shaft, the sensor being connected to the control circuit board, the control circuit board controlling rotation of the motor according to a position signal returned by the sensor so as to drive the control shaft to rotate.
Dependencies are inferred from the claim text.