Deformable crutch

A deformable crutch, comprising:

• a hand-held part;
• a seat part;
• a support part;
• and
• a plurality of lock devices for locking a rotation angle between the hand-held part and the seat part, and a rotation angle between the seat part and the support part;
• wherein the hand-held part comprises a handlebar (10), a first connecting rod (11), a second connecting rod (12), and a first cross rod (13), and one end of the first connecting rod (11) and one end of the second connecting rod (12) are respectively connected with two ends of the handlebar (10), and another end of the first connecting rod (11) and another end of the second connecting rod (12) are respectively connected with two ends of the first cross rod (13),
• wherein the seat part comprises a third connecting rod (21), a fourth connecting rod (22) and a second cross rod (23), and one end of the third connecting rod (21) and one end of the fourth connecting rod (22) are respectively rotatably connected with the first cross rod (13), and another end of the third connecting rod (21) and another end of the fourth connecting rod (22) are respectively connected with two ends of the second cross rod (23), and
• wherein the seat part further comprises a second reinforcing rod (24), and two ends of the second reinforcing rod (24) are respectively connected with the third connecting rod (21) and the fourth connecting rod (22);
• or, two ends of the second reinforcing rod (24) are respectively connected with the first cross rod (13) and the second cross rod (23).