Swivel knuckle connection

A swivel connection assembly between a power supply and a motor assembly, comprising:

• a first locking member aligned with an internal surface defined within a first annular member and positioned within a closed pocket formed in an external surface of a second annular member;
• an elongated open pocket defined in the external surface of the second annular member and configured to align with an axial groove in the internal surface of the first annular member to form a passage upon relative rotation thereof;
• and
• a second locking member positioned in the formed passage,
• wherein the first locking member and the second locking member axially and rotationally lock the first annular member relative to the second annular member.

A swivel connection assembly between a power supply and a motor assembly, comprising:

• a first portion having a first section and a second section, the second section extending at a non-zero angle relative to the first section;
• a second portion including:
• a first member defining a first axial locking groove extending substantially parallel to the second portion and defining a second locking groove extending transverse to the first axial groove;
• a second member defining both a first closed pocket and an elongated open pocket;
• a first locking member configured to be received in both the first closed pocket and the second locking groove;
• and
• a second locking member configured to be received in both the first axial locking groove and the elongated open pocket, wherein the first and second portions are configured to swivel relative to one another.