2results about How to "Change arc" patented technology

The present application relates to steel formwork turning plate technical field, especially to a kind of steel formwork turning plate structure for power plant chimney and use method.It includes fixed seat, the fixed seat is provided with symmetric and evenly distributed through-hole, the fixed seat is fixed with first hydraulic rod, the fixed seat is slidably connected with mounting seat, the mounting seat is slidably connected with first steel plate, the first steel plate is provided with symmetric and evenly distributed through-hole, the mounting seat is fixed with second hydraulic rod, the first steel plate is rotatably connected with symmetric distribution second steel plate, the first steel plate is hinged with symmetric distribution first fixed shell, symmetric distribution the first fixed shell is slidably connected with first sliding rod on opposite side.The first sliding rod of the present application pushes adjacent second steel plate to produce rotation, so as to change the overall arc of the device, so that the device can adapt to the construction of various diameter chimneys, reduce the formwork cost when chimney is built.

The utility model relates to pipe fitting cutting technical field discloses a pipe fitting clamping mechanism for band saw cutting device, including first clamping mechanism and second clamping mechanism that set up in cutting table from left to right in proper order, first clamping mechanism includes the installation frame of left and right two ends opening, the installation frame has first clamping piece and second clamping piece from left to right in proper order, the first installation hole that the upper end of installation frame is opened has for the first cylinder stretches into, the piston rod of first cylinder passes through first installation hole and stretches into the inside of installation frame, second clamping mechanism includes support frame and fixed frame, support frame is fixed on fixed frame, the second installation hole that support frame is opened has for the piston rod of second cylinder stretches into, the piston rod of second cylinder passes through second installation hole and stretches into down and is fixedly connected with third upper circular arc clamping portion, the third lower circular arc clamping portion that fixed frame is located third upper circular arc clamping portion's just below is provided with.