Abstract: Disclosed is a suspension device comprising an upper connecting member and a lower bearing member. The upper connecting member comprises a first upper jointing portion and a second upper jointing portion, and the lower bearing member comprises a first lower jointing portion and a second lower jointing portion. The first upper jointing portion is provided with a first opening, the first lower jointing portion is substantially T-shaped. The root part of the first lower jointing portion can be rotated freely in the lower part of the first opening. The second upper jointing portion is provided with a second opening and a third opening that are elongated, the second lower jointing portion is provided with a first side plate and a second side plate configured to be inserted into the second opening and the third opening, respectively.

Abstract: A beam clamp, including a clamp body having a rectangular shape symmetrically bent and butt-jointed by a plate material is described. On one side of the body housing a butt seam is a butt-joint face, and clamping jaws are protruded on the two sides of the body at the two sides of the butt-joint face. A clamping plate face is convexly disposed on one side of the body opposite the butt-joint face, and a screw hole corresponding to the clamping jaw is bored on the plate face. The screw hole is tapped and a bolt is disposed therein. The bolt and jaws form three-point clamping, providing high fastening performance. Corresponding threaded rod holes are bored on the plate face and butt-joint face and tapped. The resulting clamp has high processing precision, efficiency, and adaptability; the structure strength is high; load performance is good; and the size is small.