Musical instrument stand

A musical instrument stand comprises:

• a pair of first leg devices, a pair of second leg devices, a pair of adjustment mounts, a main connector, a collar, a clamping device, and an adjustment tube,
• a first rivet fastening one of the first leg devices, one of the second leg devices, and one of the adjustment mounts together,
• a bolt fastening the main connector and one of the adjustment mounts together,
• the clamping device having a lower sleeve,
• the collar receiving the lower sleeve of the clamping device,
• the clamping device receiving an upper portion of the main connector,
• the adjustment tube inserted through the clamping device and the main connector,
• the clamping device further having a hollow clamping block disposed on the lower sleeve,
• the hollow clamping block having a first arm, a second arm, and a slit formed between the first arm and the second arm,
• the collar having an upper round hole and a lower circular hole communicating with the upper round hole,
• each of the first leg devices having a leg pipe and a first joint disposed on the leg pipe,
• each of the second leg devices having a leg tube and a second joint disposed on the leg tube,
• the first joint having an upper recess, a slot, and a first circular aperture communicating with the slot,
• the second joint having an upper groove and a second circular aperture matching the first circular aperture of the first joint,
• the second joint inserted in the slot of the first joint,
• an annular casing enclosing a corresponding leg pipe, the annular casing having two upper elastic plates and two lower braces, a support block having a through aperture and two lower elastic bars surrounding the corresponding leg pipe, the support block disposed on a bottom of the annular casing, and a bracket passing through the through aperture of the support block.