Tube set device and clamping assembly

A tube set device, comprising:

• a first tube and a second tube sleeved with each other, wherein the second tube comprises an opening, the first tube partially extends from the opening into the second tube, and the first tube is telescopic relative to the second tube;
• and
• a clamping assembly, disposed at the opening of the second tube, and the clamping assembly comprising:
• a quick-release tube-clamp, comprising a tightening body and a handle, wherein the handle is pivoted on the tightening body and is able to be switched pivotally between a released state and a locked state, and wherein, in the released state, the first tube is telescopic relative to the second tube, and in the locked state, the tightening body clamps the first tube and the second tube tightly;
• and
• a safety lock unit, comprising a first matching element and a second matching element, wherein the first matching element is disposed on one of the handle and the tightening body, and the second matching element is disposed on the other one of the handle and the tightening body,
• wherein, in the locked state, the first matching element is aligned with the second matching element, and the first matching element and the second matching element are able to be assembled with each other for fixing the handle to the tightening body and maintaining the locked state,
• wherein the first matching element is a safety screw, the second matching element is a lock-hole element, and the handle is fixed to the tightening body by screwing the safety screw into the lock-hole element,
• wherein a matching of the safety screw and lock-hole element becomes tighter when screwing the safety screw into the lock-hole element in a first rotation direction,
• and the matching of the safety screw and lock-hole element becomes looser when screwing the safety screw out of the lock-hole element in an opposite direction of first rotation,
• wherein the first matching element comprises a screw head, a shaft part, and a thread part;
• the shaft part is connected between the screw head and the thread part;
• and an outer diameter of the thread part is larger than an outer diameter of the shaft part, whereby the first matching member is idlingly disposed on one of the handle and the tightening body,
• wherein the second matching member comprises a lock hole and a nut column fixed in the lock hole,
• wherein the tightening body comprises a C-shaped tube sleeved on the second tube and a pair of wing plates extending outwardly from the C-shaped tube at an interval, and wherein the C-shaped tube has a notch, and the wing plates are correspondingly adjacent to the notch,
• wherein the handle comprises a cam part, an arm part, and a tail part, wherein the arm part is connected between the cam part and the tail part, and the cam part is pivotally connected to the tightening body about a fastener extending between the pair of wings, the cam part clamping the pair of wings toward each other in the locked state.