Connection apparatus for telescopic joint

A connection device, comprising:

• a housing having a bore therethrough;
• a locking ring rotatably movable relative to the housing between a first position and a second position, where the locking ring includes a circumferential inner surface having an inner protrusion and a circumferential outer surface having an outer protrusion;
• an engagement member laterally moveable relative to the bore of the housing between a retracted position and an extended position;
• where, when the engagement member is in the retracted position, the engagement member is configured to engage the outer protrusion of the locking ring and, when the engagement member is in the extended position, the engagement member is configured to engage the inner protrusion of the locking ring.

An assembly, comprising:

• a first pipe;
• a second pipe;
• a connection device configured to be coupled to the first pipe, the connection device comprising:
• a housing having a bore therethrough;
• a locking ring rotatably movable relative to the housing between a first position and a second position, the locking ring having a circumferential inner surface and a circumferential outer surface;
• an engagement member laterally moveable relative to the bore of the housing between a retracted position and an extended position;
• and
• where, the locking ring is configured such that:
• movement from the first position to the second position causes the circumferential inner surface of the locking ring to contact the engagement member to move the engagement member from the retracted position to the extended position, and,
• movement from the second position to the first position causes the circumferential outer surface of the locking ring to contact the engagement member to move the engagement member from the extended position to the retracted position;
• and
• where, when the engagement member is in the extended position, the engagement member is configured to couple the connection device to the second pipe.