Multi-functional knife

A multi-functional folding knife, comprising:

• a housing, wherein the housing comprises an outer housing and an inner housing, the inner housing is rotatably and foldably mounted in the outer housing, the inner housing is provided with an accommodating cavity and an end opening, and the end opening is provided at a first end of the inner housing;
• a blade holder, wherein the blade holder is configured to hold a blade, and is rotatably mounted in the accommodating cavity;
• a first guide assembly, wherein the first guide assembly comprises a first guide rail and a drive member, the drive member is drivably connected to a first side of the blade holder to cause the blade holder to move along the first guide rail, and the drive member is provided with a driving surface;
• a second guide assembly, wherein the second guide assembly comprises a fixed surface and a second guide rail extends through the fixed surface, a second side of the blade holder is pivotally connected to the second guide rail to cause the blade holder to move along the second guide rail, and when the drive member moves relative to the fixed surface, the blade holder is selectively rotated into or out of the accommodating cavity, so that an orientation of the blade holder is changed to a plurality of positioning angles between a longitudinal position and a transverse position alternately;
• and
• a sliding assembly, wherein the sliding assembly is mounted on the driving surface to drive the drive member to move,
• wherein the blade holder comprises a first guide member and a second guide member, the first guide member and the second guide member are respectively arranged on the first side and the second side of the blade holder in a staggered manner, the first guide member protrudes from the first side of the blade holder and is pivotally connected to a first end of the driving surface and the first guide rail to drive the blade holder to move along the first guide rail, and the second guide member protrudes from the second side of the blade holder and is pivotally connected to the second guide rail to drive the blade holder to move along the second guide rail, so that a longitudinal driving force applied by the sliding assembly to the drive member is converted to a force applied by the drive member to move the blade holder to the plurality of positioning angles.