High-efficiency piston type oil delivery pump

The invention relates to the technical field of oil delivery pumps, and discloses a high-efficiency piston type oil delivery pump which is characterized in that an oil inlet pipe is fixedly connected to the rear side of an oil delivery pump body, an oil outlet pipe is fixedly connected to the front side of the oil delivery pump body, a filtering mechanism is arranged on the periphery of the oil outlet pipe, and a cleaning mechanism is arranged in the filtering mechanism; a collecting mechanism is arranged at the bottom of the filtering mechanism, a connecting pipe is arranged on the periphery of the filtering mechanism, the filtering mechanism comprises a filtering assembly and a fixing assembly, and the filtering assembly is arranged on the front side of the oil outlet pipe. Impurities existing in oil are filtered through the filtering disc in the filtering pipe, the using effect of the oil is improved, the service life of equipment is prolonged, the filtering pipe and the oil outlet pipe can be automaticall