Split combined type oil brake upper pump

The utility model relates to a split combined type oil brake upper pump, which comprises a handle seat detachably fixed on a handlebar pipe, the handle seat is provided with an oil cylinder part, the oil cylinder part is provided with an oil cavity for containing oil, one end of the oil cylinder part is fixed on the handle seat, the other end of the oil cylinder part is provided with an oil pipe interface communicated with the oil cavity, and the oil pipe interface is used for connecting an oil pipe; the brake handle is movably installed on the handle seat, and when the brake handle moves, oil in the oil cavity is driven to move; wherein an external oil pool piece is detachably fixed to the outer side of the oil cylinder piece, the external oil pool piece is provided with an oil pool cavity, and the oil pool cavity is in through connection with the oil liquid cavity so as to adjust oil pressure. According to the oil brake upper pump, split type independent machining is adopted, the forming difficulty is reduc