Hang expansion of table and receive stay knot and construct

The utility model provides a hang expansion of table and receive stay knot and construct, hang that the table includes a support frame, board hangs solid keying structure, its characterized in that with one: the backboard facepiece has a heavy burden rib, and should bear a heavy burden between rib and the support frame pivot and be equipped with at least one and launch and receive the stay knot and construct, the expansions and receive the stay knot and construct and include a pin joint in the first rotatory support body and a pin joint in the rotatory support body of the second of the support frame lower edge of the heavy burden rib, and the the first rotatory support body has just an occasional, minor success and rotatory support body joint stationary location of the second and fork and the swing joint pivot of a pin joint in the rotatory support body of the second of bearing a heavy burden, and the second rotation support body has one and provides the the first rotatory support body expansion or receipts and close the movable accommodation space of rotation and one provide the swing joint pivot displacement gliding pivot guide rail, the utility model discloses make the board get more the quickly expanding to use to put down with quickly more and receive the beneficial effect who closes by providing the expansion and receive the stay knot and construct, reaching.