Handle mechanism for an HVAC damper actuator

摘要

A damper system may include a handle mechanism for use with a damper actuator system. Illustratively, the handle mechanism may include a drive gear mechanism, a handle, a housing, and a spring, and may be actuated to set a crack pressure for the damper system. The handle may connect to the drive gear mechanism at a drive gear arm of the drive gear mechanism and may flip over or about the drive gear arm to move from a first position to a second position. In some instances, once the handle is in the second position, a force may be applied thereto to disengage the drive gear from a stop member and thereafter, the handle may be rotated to change the crack pressure of the damper system.

主权项

1. A handle mechanism for use with a damper actuator system having a damper blade configured to be positioned within a duct of a duct system, a shaft in communication with the damper blade, and a driven gear operatively coupled to the shaft, the handle mechanism comprising:
a drive gear configurable to be operatively coupled to the driven gear and for rotating the driven gear of the damper actuator system; a handle configured to rotate the drive gear, the handle has a first surface and an opposing second surface on an opposite side of the handle; a housing at least partially enclosing the drive gear, the housing defining an interior surface and an exterior surface; and a spring configured to bias the drive gear toward a first axial position relative to the housing; andwherein:
the first surface of the handle is configured to be adjacent the exterior surface of the housing when the handle is in a first handle position, and the opposing second surface of the handle is configured to be adjacent the exterior surface of the housing when the handle is in a second handle position; and applying a force to the handle toward the housing when the handle is in the second position moves the drive gear against the bias of the spring and in an axial direction from the first axial position toward the handle and to a second axial position relative to the housing along an axis that extends through the drive gear.