Damper valve and hydraulic damper using the same

A damper valve, comprising a damper valve assembly and a valve body, wherein the valve body is provided with an oil passage for oil inlet and outlet, and the damper valve assembly comprises a main valve sleeve, a main valve spool, and a first elastic member, wherein

• the main valve sleeve is provided with a mounting bore, an upper end of the mounting bore is provided with an opening, a side wall of the mounting bore is provided with a first passage, and the first passage is in communication with the oil passage;
• the main valve spool is inserted in the mounting bore of the main valve sleeve, the main valve spool is movable along an axial direction of the main valve sleeve, a gap formed between the main valve spool and the opening of the mounting bore is configured as a first flow path, the first flow path is in communication with the first passage, and the main valve spool is further provided with a through hole, a first side cavity is formed between the main valve spool and an inner wall of the mounting bore, the first passage is in communication with the first side cavity;
• and
• the first elastic member is configured to apply an elastic force to the main valve spool along an axial direction of the main valve spool.