Abstract: An expansion tool structure for a steering knuckle of a vehicle contains: a body, a multiple-section positioning set, and a rotatable connector. The body includes a receiving orifice, a first rotation portion, a recess, a second rotation portion, a stopped face, two retainers, a holding protrusion, a notch, a hollow accommodation section, and a threaded orifice. The multiple-section positioning set includes a locating ball, a resilient element, and a threaded post. The rotatable connector includes a holder, four slots, a first rotatable coupling section, a second rotatable coupling section, a stepped edge, an extension, a C-shaped ring, and a non-circular joining portion. The rotatable connector further includes an actuation projection, and the actuation projection has two opposite elongated faces and two opposite short faces. Preferably, a width of a respective one short face is equal to or is less than a width of a respective one retainer.

Abstract: A removal device for a belt pulley contains: a guiding rod, two clamping members, and two paws. The guiding rod includes a screwing hole defined on a central position thereof to screw with a push rod. The two clamping members slide along the guiding rod, and each clamping member includes a guide orifice for inserting the guiding rod, a first guide rail, and a first engaging portion, wherein a first direction of the first guide rail is perpendicular to a second direction of the screwing hole. Each paw includes a second guide rail for matching with the first guide rail, such that each of the two paws is connected with or removed from each of the two clamping members, wherein the second guide rail has a second engaging portion for cooperating with the first engaging portion.

Abstract: A removal device for a belt pulley contains: a guiding rod, two clamping members, and two paws. The guiding rod includes a screwing hole defined on a central position thereof to screw with a push rod. The two clamping members slide along the guiding rod, and each clamping member includes a guide orifice for inserting the guiding rod, a first guide rail, and a first engaging portion, wherein a first direction of the first guide rail is perpendicular to a second direction of the screwing hole. Each paw includes a second guide rail for matching with the first guide rail, such that each of the two paws is connected with or removed from each of the two clamping members, wherein the second guide rail has a second engaging portion for cooperating with the first engaging portion.

Abstract: An improved wall unit used in construction. The wall unit is mainly used for the construction and formation of walls of buildings. The wall unit includes a main body and a metallic net. The front surface is pre-fabricated and provided. with designs, patterns and colors according to specifications. Therefore, after the wall unit is installed on a wall, no extra work or modification needs to be done on the front surface. The metallic net is disposed on the back of the main body and several steel strips are provided on the metallic net for the purpose of reinforcement after the metallic net is partially embedded into the main body. Because a portion of the metallic net and the steel strips stick out of the main body, such arrangement may facilitate the spot welding of the steel strips.

Abstract: A hose clamp pliers comprises first and second pliers bodies axially combined together by a pivot pillar for forming operating segments and working segments thereon including fitting seats disposed on the front ends thereof for fitting clamping members therein individually, the clamping members including positioning portions for accommodation various types of hose members mounted on one ends thereof, and including shanks with smaller diameters coupled on another ends thereof and inserting through the fitting seats respectively, the inner end surfaces of the positioning portions being biased against the inner end surfaces of the fitting seats respectively, and one ends of the shanks projecting out of the outer end surfaces of the fitting seats, the shanks including holes formed therein for receiving compression springs including balls placed on the free ends thereof and pushed out of the shanks thereby for being retained on the outer end surface of the fitting seats respectively, thus quickly replacing differe

Abstract: A tool holder includes a holding member for supporting tool members, one or more magnetic members attached to the rear portion of the holding member for attracting and attaching the holding member to a supporting surface, and an anti-slip member also attached to the rear portion of the holding member for frictionally engaging with the supporting surface. The holding member includes a tool carrier for engaging with and for supporting tool elements or tool members or tool devices which may be quickly obtained by the workers particularly when the workers are worked beneath the chassis of the vehicle, and for avoiding the workers from moving into and out of the tiny space beneath the chassis of the vehicle.