Hydraulic braking device for hydraulic braking of bicycle and bicycle

The utility model discloses a hydraulic braking device for hydraulic braking of a bicycle and the bicycle. The hydraulic braking device comprises a cylinder body, a push rod piston and a reset spring. One end of the push rod piston moves back and forth in the cylinder body by overcoming the elastic force of the reset spring; and a push rod head is arranged at the other end of the push rod piston. The hydraulic brake device cannot be in direct contact with a transmission part or an operating handle, can avoid abrasion of the push rod piston, is very convenient to maintain and does not need to replace the push rod piston. 本实用新型公开一种用于自行车液压制动的液压制动装置及自行车，所述液压制动装置包括缸体、推杆活塞以及复位弹簧；所述推杆活塞的一端通过克服所述复位弹簧的弹力在所述缸体内往复运动；所述推杆活塞的另一端设有推杆头。该液压制动装置不会与传动部件或者操作手柄直接接触，可以避免推杆活塞发生磨损，维修十分方便，无需更换推杆活塞。