Flow Adjustment Assembly and Electronic Expansion Valve

A flow adjustment assembly, comprising a valve head and a sealing gasket, wherein the sealing gasket is provided with a communication channel, and the valve head is able to move relative to the sealing gasket, so as to adjust a flow of a medium in the communication channel;

• wherein the valve head is provided with a sealing surface and a first matching surface, and the sealing gasket is provided with a sealing matching surface and a second matching surface;
• and
• as the valve head moves relative to the sealing gasket, a circulation area between the sealing surface and the second matching surface is able to be adjusted to control the flow of the medium in the communication channel;
• and moreover, under the driving of the valve head, the first matching surface is able to extend into the communication channel, so as to perform flow guidance on a medium passing between the second matching surface and the sealing surface;
• or, as the valve head moves relative to the sealing gasket, the first matching surface is able to be driven to extend into the communication channel, and a circulation area between the first matching surface and the sealing matching surface is adjusted to control the flow of the medium in the communication channel;
• and moreover, under the driving of the valve head, the second matching surface is able to perform flow guidance on the medium passing between the first matching surface and the sealing matching surface.