Abstract: A drawing device of the present invention includes a first driving element, a bolt, a plurality of second driving elements, and a plurality of clipping rods. The first driving element drives the second driving elements to rotate simultaneously, so that the clipping rods are able to be rotated and operated. Also, a hook portion of each clipping rod is able to hook to a bottom of objects to be drawn out, and the bolt is disposed on a threaded hole of the first driving element and abuts against the objects to be drawn out. At the same time, the clipping rods are moved outward.

Abstract: According to the present invention, the oil filter replacement device has a number of pins for clamping an oil filter, and the pins are extended eccentrically from corresponding secondary gear members. The secondary gear members are engaged to spin simultaneously by a main gear member. As such, the pins could be adjusted to fit on oil filters of various sizes. Additionally, each pin is rotatable and has at least a flat face. As the pins rolls along the circumference of the oil filter, their flat faces are turned to interface the flat faces around the oil filter. As such, the oil filter is tightly and reliably clamped by the oil filter replacement device, thereby preventing the problem of uneven exertion of force and deforming the oil filter.