Shearing mechanism and garden shear

A shearing mechanism, comprising:

• a mounting bracket;
• a first shearing assembly, wherein the first shearing assembly comprises a first actuating arm rotatably arranged on the mounting bracket and a first shearing portion rotatably arranged on the mounting bracket, wherein the first actuating arm is provided with a first driving gear, and the first shearing portion is provided with a first driven gear engaged with the first driving gear;
• a second shearing assembly, wherein the second shearing assembly comprises a second actuating arm rotatably arranged on the mounting bracket and a second shearing portion rotatably arranged on the mounting bracket, wherein the second actuating arm is provided with a second driving gear, and the second shearing portion is provided with a second driven gear engaged with the second driving gear;
• and
• a linkage mechanism;
• wherein the linkage mechanism is arranged between the first actuating arm and the second actuating arm, wherein the first actuating arm and the second actuating arm are capable of rotating synchronously relative to each other in opposite directions;
• or,
• wherein the linkage mechanism is arranged between the first shearing portion and the second shearing portion, wherein the first shearing portion and the second shearing portion are capable of rotating synchronously relative to each other in opposite directions;
• wherein the linkage mechanism comprises a sliding pin slidably arranged on the mounting bracket, wherein the first shearing portion and the second shearing portion are respectively provided with a linkage slot matched with the sliding pin in a sliding manner;
• the mounting bracket comprises an upper mounting plate and a lower mounting plate, wherein one end of the upper mounting plate is connected to one end of the lower mounting plate via a first connecting shaft pin, wherein the other end of the upper mounting plate is connected to the other end of the lower mounting plate via a second connecting shaft pin;
• the first actuating arm and the second actuating arm are arranged between the upper mounting plate and the lower mounting plate and are rotatably matched with the first connecting shaft pin;
• the first shearing portion and the second shearing portion are arranged between the upper mounting plate and the lower mounting plate and are rotatably matched with the second connecting shaft pin;
• and
• the upper mounting plate is provided with a first guiding slot, the lower mounting plate is provided with a second guiding slot, both the first guiding slot and the second guiding slot are matched with the sliding pin in a sliding manner.