Abstract: Disclosed are a transportation device and a fixing seat thereof. The former includes at least one transportation trolley including a base and at least one fixing seat. The base includes a carrying surface having a plurality of first positioning structures. A screen box body is fixed between the fixing seat and the base. The fixing seat includes a plurality of second positioning structures at one side of the fixing seat facing the base. The base includes at least one caster on a side of the base facing away from the carrying surface. Each of the first positioning structures is at least one of a first positioning piece and a first positioning hole, and each of the second positioning structures is at least one of a second positioning hole and a second positioning piece. Each of the first positioning piece defines a first fixing hole configured to receive a fixing plug.

Abstract: Disclosed is an arc-shaped lock. The arc-shaped lock includes an adjusting mechanism and a fixing mechanism, the adjusting mechanism includes a sliding shaft fastened to a first LED box, and a cover sleeving on the sliding shaft, the sliding shaft sliding in the cover in an arc track. And the fixing mechanism includes a lock seat fastened to a second LED box adjacent to the first LED box, a handle assembly, and a connecting assembly configured to connect the lock seat with the cover under a control of the handle assembly. The present disclosure aims to adopt the arc-shaped lock to fixedly install two adjacent LED panels together, for improving an user experience and a safety factor of the installation.

Abstract: Disclosed is an arc-shaped lock. The arc-shaped lock includes an adjusting mechanism and a fixing mechanism, the adjusting mechanism includes a sliding shaft fastened to a first LED box, and a cover sleeving on the sliding shaft, the sliding shaft sliding in the cover in an arc track. And the fixing mechanism includes a lock seat fastened to a second LED box adjacent to the first LED box, a handle assembly, and a connecting assembly configured to connect the lock seat with the cover under a control of the handle assembly. The present disclosure aims to adopt the arc-shaped lock to fixedly install two adjacent LED panels together, for improving an user experience and a safety factor of the installation.

Abstract: Disclosed are a lifting lock and a LED display screen having the lifting lock. The lifting lock includes a first lifting mechanism and a second lifting mechanism. The first lifting mechanism includes a first base and a lock head, and a plug hole and a clamping groove are arranged on the lock head. The second lifting mechanism includes a second base, a plug structure, a safety structure arranged on the second base. The second base includes a lock hole extending along a longitudinal direction, and the lock head is movably inserted in the lock hole. The safety structure includes an elastic bolt movable along the horizontal direction and configured to cooperate with the clamping groove to lock the lock head. The plug structure includes a plug movable along a horizontal direction and configured to match with the plug hole to lock the lock head.

Abstract: Disclosed are an installation support and a display device. The installation support includes at least two carbon-fiber vertical frames and two aluminum-alloy horizontal frames. Each of the carbon-fiber vertical frames are spaced in sequence. One end of each carbon-fiber vertical frame is connected to one of the aluminum-alloy horizontal frames, and the other end is connected to the other aluminum-alloy horizontal frame. The aluminum-alloy material is precise in manufacturing reproduction, and can be repeatedly processed to ensure the reproduction accuracy. When the two aluminum-alloy horizontal frames of the two installation supports are installed, the two aluminum-alloy horizontal frames can be matched with each other more accurately.

Abstract: Disclosed are a transportation device and a fixing seat thereof. The former includes at least one transportation trolley including a base and at least one fixing seat. The base includes a carrying surface having a plurality of first positioning structures. A screen box body is fixed between the fixing seat and the base. The fixing seat includes a plurality of second positioning structures at one side of the fixing seat facing the base. The base includes at least one caster on a side of the base facing away from the carrying surface. Each of the first positioning structures is at least one of a first positioning piece and a first positioning hole, and each of the second positioning structures is at least one of a second positioning hole and a second positioning piece. Each of the first positioning piece defines a first fixing hole configured to receive a fixing plug.