Stand adjustment device

A stand adjustment device, configured to be assembled into a stand with a tripod and a boom;

• the stand adjustment device comprising:
• a tripod-connecting member being cylindrical and configured to be connected to the tripod, the tripod-connecting member having:
• a seat positioning portion formed around an outer annular surface of the tripod-connecting member;
• a connecting seat rotatably located around the seat positioning portion of the tripod-connecting member and having:
• a first side and a second side disposed opposite each other;
• and
• an inner positioning portion formed on the first side;
• a distal clamping plate detachably attached to the second side of the connecting seat and having:
• a distal positioning portion formed on a surface, which faces toward the connecting seat, of the distal clamping plate;
• the distal positioning portion detachably abutting against the seat positioning portion of the tripod-connecting member;
• a boom-connecting tube detachably attached to the first side of the and being rotatable relative to the connecting seat;
• a rotating axis of the boom-connecting tube relative to the connecting seat being non-parallel to a rotating axis of the connecting seat relative to the tripod-connecting member;
• the boom-connecting tube having:
• two outer clamping holes each formed through a respective one of two opposite sides of the boom-connecting tube;
• and
• an outer positioning portion disposed on a side, which faces toward the connecting seat, of the boom-connecting tube;
• the outer positioning portion detachably engaging with the inner positioning portion of the connecting seat;
• a locking shaft slidably and sequentially mounted through the boom-connecting tube, the inner positioning portion of the connecting seat, and the distal clamping plate such that the boom-connecting tube is rotatable relative to the connecting seat;
• the locking shaft having:
• a first end and a second end disposed opposite each other;
• a shaft abutting portion formed on the first end;
• the shaft abutting portion movably disposed in the boom-connecting tube;
• and
• an inner clamping hole formed through the shaft abutting portion;
• the boom slidably mounted through the two outer clamping holes of the boom-connecting tube and the inner clamping hole of the locking shaft;
• and
• a manual operating member connected to the second end of the locking shaft and having:
• a manual abutting portion configured to move toward or away from the shaft abutting portion of the locking shaft;
• the manual abutting portion of the manual operating member and the shaft abutting portion of the locking shaft configured to clamp the boom-connecting tube, the inner positioning portion of the connecting seat, and the distal clamping plate therebetween into a locked condition;
• wherein, in the locked condition, a wall of the inner clamping hole of the locking shaft abuts against a far side of the boom, and walls of the two outer clamping holes of the boom-connecting tube abut against a near side of the boom to prevent the boom from sliding relative to the boom-connecting tube;
• wherein, in the locked condition, the outer positioning portion of the boom-connecting tube engages with the inner positioning portion of the connecting seat to prevent the boom-connecting tube from rotating relative to the connecting seat;
• and
• wherein, in the locked condition, the seat positioning portion of the tripod-connecting member is clamped between an inner surface of the connecting seat and the distal positioning portion of the distal clamping plate to prevent the connecting seat from rotating relative to the tripod-connecting member.