Valve assembly and plunger type high-pressure pump using same

The invention discloses a valve assembly and a plunger type high-pressure pump using the valve assembly, the valve assembly comprises a valve body, the upper end and the lower end of the valve body are respectively provided with a discharge concave hole and a suction concave hole which are coaxially arranged, the valve body is respectively provided with a plurality of discharge channels and suction channels, one end of each discharge channel is communicated with the lower end of the valve body, and the other end of each suction channel is communicated with the lower end of the valve body. One end of the suction channel communicates with the side wall of the valve body, and the other end of the suction channel communicates with the interior of the suction concave hole. The discharge valve plate is movably arranged in the discharge concave hole and is used for sealing the discharge channel or opening the discharge channel; the suction valve plate is movably arranged in the suction concave hole and used for seal