High -pressure pump

The utility model belongs to the technical field of the technique of pump valve and specifically relates to a high -pressure pump is related to, including the pump body and with the pump cover of pump body fastening connection, be equipped with inlet opening and apopore on the pump body, be equipped with the outlet pipe on the apopore, be equipped with on the outlet pipe with outlet pipe looks vertically fine setting body, the fine setting body is equipped with water return hole with the one end that goes out water piping connection, is equipped with the valve rod that one end was equipped with the case in the fine setting body, the case can push up to the water return hole on, installs the inching switch on the other end of fine setting body, the tip of valve rod stretches out the fine setting body and can touch the inching switch, the one side that is close to the inching switch in the fine setting body is equipped with the spring holder, the cover is equipped with reset spring on the valve rod between case