Extraction connection system

A dust extraction system, comprising:

• a suction apparatus connection element that includes:
• a first end portion configured to operatively connect to a dust extraction hose;
• a second end portion;
• and
• an annular receiving recess located between the first end portion and the second end portion;
• a tool connection element that includes:
• a first end portion configured to operatively connect with a portable power tool;
• a second end portion configured to removably receive the second end portion of the suction apparatus connection element;
• and
• a first coupling portion extending from the second end portion toward the first end portion, the first coupling portion having a first latching recess and a second latching recess;
• a resilient annular fixing element positioned at least partially within the annular receiving recess;
• a first radial latching extension extending radially outwardly from the resilient annular fixing element;
• and
• a second radial latching extension extending radially outwardly from the resilient annular fixing element,
• wherein the first radial latching extension is movable between
• a first position whereat the first radial latching extension engages the first latching recess in the first coupling portion when the second end portion of the suction apparatus connection element is received in the second end portion of the tool connection element to operatively couple the tool connection element with the suction apparatus connection element, and
• a second position whereat the first radial latching extension does not engage the first latching recess when the second end portion of the suction apparatus connection element is received in the second end portion of the tool connection element;
• wherein the resilient annular fixing element is resiliently biased toward the first position,
• wherein tool connection element defines a longitudinal axis,
• wherein the first latching recess defines a maximum longitudinal extent along the longitudinal axis,
• wherein the first radial latching extension defines a maximum longitudinal extent along the longitudinal axis,
• wherein the maximum longitudinal extent of the first latching recess is greater than the maximum longitudinal extent of the first radial latching extension, such that when the resilient annular fixing element is in the first position each of (i) the resilient annular fixing element, (ii) the first radial latching extension, (iii) the second radial latching extension, and (iv) the suction apparatus connection element is movable relative to the tool connection element along the longitudinal axis,
• wherein the second radial latching extension engages the second latching recess in the tool connection element when the second end portion is operably coupled to the tool connection element and the resilient annular fixing element is in the first position, and
• wherein the second radial latching extension does not engage the second latching recess in the tool connection element when the second end portion is operably coupled to the tool connection element and the resilient annular fixing element is in the second position.