Abstract: A low-voltage lithium battery circuitry includes a busbar, a battery signal transmitter unit, a battery management system, and a lithium battery module connected to the battery management system through the busbar and the battery signal transmitter unit. The lithium battery module is configured to provide energy for an external load and supply power to the battery management system. The battery management system is configured to monitor electrical parameters acquired in the lithium battery module and, when any one of the electrical parameters exceeds a protection threshold range corresponding thereto, perform a protection operation.

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 heavy duty girder, having a plurality of outer sides and a mounting channel disposed on each of the outer sides and including a bottom surface and a pair of side surfaces. Each of the side surfaces has one end extending to the outer side by one or two bending portions including a first bending portion coupled to the outer side and a second bending portion coupled to the side surface, and the other end extending to the bottom surface by a third bending portion. The bending direction of the second bending portion is opposite to or perpendicular to the bending direction of the first bending portion. The second bending portion abuts against an inner wall of the hollow body.

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 funnel-shaped first opening, the first lower jointing portion is T-shaped. The T-shaped root of the first lower jointing portion can be rotated freely in the funnel head of the first funnel-shaped 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 second side plate and a third 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.

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.