Drain cleaning machine

A drain cleaning machine comprising:

• a snake inlet tube defining a snake axis, the snake inlet tube formed from a first material;
• a snake outlet tube coaxial with the snake axis, the snake outlet tube defining a snake outlet, the snake outlet tube formed from hardened steel;
• a clamping mechanism positioned between the snake inlet tube and the snake outlet tube, the clamping mechanism configured to selectively engage a drain cleaning snake extending through the snake inlet tube and the snake outlet tube;
• a motor switchable between a deactivated state and an activated state in which the motor is configured to rotate the clamping mechanism about the snake axis;
• and
• an actuating lever moveable between a deactivated position, in which the clamping mechanism is configured to disengage the drain cleaning snake, and an activated position, in which the clamping mechanism is configured to engage the drain cleaning snake.

A drain cleaning machine comprising:

• a first tube defining a snake axis;
• a second tube coaxial with the first tube;
• a motor operable to selectively transfer torque to rotate one of the first or second tube;
• a switch coupled to the motor and operable to change the motor between a deactivated state and an activated state;
• a cam follower moveable between a deactivated position, in which the motor is not activated by the switch, and an activated position, in which the motor is activated by the switch;
• an actuating lever moveable between a first position, in which torque from the motor is not transferred to the first tube and the second tube, and a second position, in which torque from the motor is transferred to the first tube or the second tube;
• and
• a pull rod including a first end coupled to the second tube and a second end coupled to the actuating lever, the second end defining a cam;
• wherein in response to the actuating lever moving from the first position to the second position, the cam engages the cam follower to move the cam follower from the deactivated position to the activated position.