Angle-adjustable umbrella without rope

An angle-adjustable umbrella, comprising:

• a column having a sliding block slidably sleeved on the column;
• a transverse rod having a top end and a bottom end;
• a tilted rod having a top end and a bottom end;
• an umbrella frame having an upper nest and a lower nest;
• a clutch mechanism for adjusting the angle of umbrella frame;
• wherein,
• the tilted rod comprises a first tilted rod and a second tilted rod, and the top end of the first tilted rod is hinged to the top of the column, the bottom end of the first tilted rod is rotatably connected to a connector on the second tilted rod through a tilted rod joint, the bottom end of the second tilted rod is hinged to the lower nest in the umbrella frame;
• the umbrella at least comprises an upper segment, the upper nest, the lower nest, long ribs, short ribs, a plurality of support ribs, and a middle nest;
• the upper nest is connected to the upper segment, and rotatably connected to top ends of the long ribs;
• a first end of each short rib far away from the lower nest is rotatably connected to a middle portion of the long ribs, and a second end of each short rib is rotatably connected to the lower nest;
• a first end of each support rib is rotatably connected to the middle nest, and a second end of each support rib is rotatably connected to the long ribs near the upper nest;
• the transverse rod comprises a first transverse rod and a second transverse rod which are connected with each other by connecting pieces, and the connecting pieces are coupled to the tilted rod, the bottom end of the transverse rod is connected to a slider joint through the clutch mechanism, the slider joint is rotatably connected to the sliding block slidably sleeved on the column, and the top end of the transverse rod is rotatably connected to the upper nest in the umbrella frame.