Clamp stall braking mechanism

The utility model discloses a pipeline clamp stall braking mechanism. A tachometer wheel mechanism is additionally arranged on the lower part of a clamp, and a solenoid valve is used for controlling air (oil) to carry out braking operation; a connecting rod (4) is fixed on the lower end of one side of a fixed seat (1); a guide rod (3) penetrates through a hole in the upper end of the other side of the fixed seat (1) and is in sliding connection with the fixed seat (1); the lower end of the guide rod (3) is also in sliding connection with the connecting rod (4); a compression spring (2) is sleeved on the guide rod (3) between the fixed seat (1) and the connecting rod (4); the other end of the connecting rod (4) is connected with a tachometer wheel (5); a bearing (6) is arranged between the tachometer wheel (5) and a shaft; a speed measurement encoder (7) is arranged in the center of the tachometer wheel (5); the solenoid valve (8) is arranged on the clamp; two ends of the solenoid valve (8) are connected with