2results about How to "Improve opening and closing effect" patented technology

The utility model relates to the technical field of shutter, disclose convenient to clean's building aluminium alloy shutter, including two protective housing, each protective housing inside all rotatoryly connected with a plurality of limit strip, a plurality of louver board are arranged between both sides protective housing, the louver board and both sides limit strip between interlock, the louver board outer wall is provided with cleaning assembly and rotating assembly, the cleaning assembly includes a plurality of sliding blocks, the sliding block is located the outer wall of louver board, the sliding block outer wall fixed connection is in a plurality of both sides of protective housing, the both sides of protective housing all are provided with connecting plate, the sliding block sliding connection is in the inside of connecting plate. In the utility model, through moving both sides protective housing, makes limit strip separate from both sides of louver board, realizes the disassembly of louver board, and utilizes the interlock between the sliding block inside and card block, fixes the position of protective housing, reaches the effect that the surface of louver board is conveniently cleaned, and the portability of louver board surface cleaning is strengthened.

The high-strength anti-explosion civil air defense door comprises a door frame, a hinge support and a door body, a first groove is formed in the bottom side of the door body, a clamping rod is fixedly connected in the first groove, a first clamping sleeve is connected to the clamping rod in a sleeved mode, a second clamping sleeve is connected to the bottom side of the first clamping sleeve in a sleeved mode, and a connecting frame is fixedly connected to the bottom end of the second clamping sleeve. A connecting frame is arranged on the bottom side of the door body, a supporting wheel is rotationally connected into the connecting frame through a rotating shaft, recesses are formed in the two sides of the supporting wheel, a limiting rod is fixedly connected to the upper end of the connecting frame, a spring is connected to the limiting rod in a sleeved mode, a protrusion is connected to the limiting rod in a sleeved mode, and the protrusion is fixedly connected to the bottom side of the first clamping sleeve. Movable support is provided for the side, away from the hinge support, of the door body, the friction force between the door body and the hinge support is reduced, therefore, the falling phenomenon of the door body is reduced, the opening and closing effect of the door body is improved, and meanwhile maintenance can be conveniently provided through the connecting frame and the supporting wheels which can be detached and replaced.