105results about How to "Prevent self-moving" patented technology

The invention discloses a multifunctional household LED floor lamp. The lamp structurally comprises a limiting top block, a main supporting rod, a sliding rail, a connection base, a fixed rotary knob,a wire, a stop rotary knob, a controllable device, an operation panel, a lamp base, a lower adjusting support, a first connection rod, an upper end adjusting support, a second connection rod, a lamphead fixing base and a lampshade. The controllable device comprises a height adjusting mechanism, a transmission chain, a device shell, a right side moving mechanism, a driving wheel, a stop mechanism, a left side moving mechanism and an installation base. According to the multifunctional household LED floor lamp, the controllable device is internally provided with the height adjusting mechanism,the moving mechanisms and the stop mechanism, height adjustment and movement of the floor lamp can be achieved, the problems that time and labor are wasted and the dangerousness is large when workersadjust the illuminating height or carry the floor lamp are solved, and practicability is high.

The invention discloses an energy-saving and environment-friendly roadside warning board device, which comprises two mounting racks, wherein a connecting frame is connected between the end parts of the mounting racks, and one side of the connecting frame is connected with a transparent plate; first guide rails, wherein the other two sides of the connecting frame are connected with the first guide rails, the first guide rails are connected with first sliding sleeves in a sliding mode, and first reset springs are connected between the first sliding sleeves and the first guide rails; communicating pipes, which are connected into the first sliding sleeves in a sliding mode, wherein the hollow plates are connected between the communicating pipes; and brushes, wherein one sides of the hollow plates are connected with a plurality of brushes, and the brushes are in contact fit with the transparent plate. According to the invention, a prompt guide board can be placed through the connecting frame, the prompt guide board can be seen clearly through the transparent plate, and through the cooperation of the connecting frame, the transparent plate and the sliding strip, the prompt guide board can be limited and can be prevented from falling off, so that the prompt guide board can be replaced conveniently and quickly, and resources can be saved.

The invention discloses a teaching blackboard. The teaching blackboard comprises a blackboard body. A first writing board and a second writing board are arranged at the two ends of the blackboard bodycorrespondingly. First U-shaped sliding grooves are fixedly formed in the bottom end in the blackboard body, sliding strips are fixedly arranged at the bottom end of the first writing board and the bottom end of the second writing board correspondingly, and the first U-shaped sliding grooves are in sliding connection with the sliding strips. Grooves are formed in the bottom of one side of the first writing board and the bottom of one side of the second writing board. Second U-shaped sliding grooves are fixedly formed in the two inner side walls of the grooves. Through the arranged first writing board and the arranged second writing board, the function that when a teacher gives a lesson and the blackboard space is limited, the enough writing space is provided is achieved; through cooperation of an arranged first limiting block and an arranged second limiting block, the function of limiting the positions of the first writing board and the second writing board is achieved; through arranged first bolts, the function of fixing the first writing board and the second writing board is achieved; and through cooperation of the arranged sliding strips and the arranged first U-shaped slidinggrooves, the first writing board and the second writing board are convenient to move.

The invention relates to the technical field of audios, and discloses a smart audio convenient to move and fix. The smart audio comprises an audio body, universal wheels are fixedly connected to the bottom of the audio body, fixing plates are fixedly connected to the side faces of the audio body, a clamping plate is movably connected to the interior of each fixing plate, a sliding groove is formedin the top of the side face of each clamping plate, a moving rod is movably connected to the portion, in the corresponding sliding groove, of each clamping plate, a limiting groove is formed in the side face of each fixing plate, each moving rod is connected to the interior of the corresponding limiting groove, and a supporting plate is fixedly connected to the bottom of each clamping plate. According to the smart audio, by means of the universal wheels, convenience is brought to moving and steering of the audio body; and by means of moving of the moving rods in the moving grooves, the clamping plates move downwards in the fixing plates to drive the supporting plates to move downwards to make contact with the ground, convenience is brought to fixing of the audio body, the problem that theaudio body automatically moves due to external force when the audio body does not need to move is solved, and convenience is brought to fixing and transporting of the audio body.