2results about How to "Guaranteed rotation angle" patented technology

The utility model discloses an automatic clamping corner device for a pipe bending machine, which comprises a fixing plate, a die-in fixing seat arranged on the fixing plate through a left-right sliding device, a corner seat arranged on the die-in fixing seat through an up-down sliding device, a rotating die arranged on the corner seat through a rotating device, and a clamping device arranged on the rotating die. The rotating die can rotate relative to the center line of the rotating die through the rotating device; a clamping groove is inwards formed in the circumference of the rotary die, and the position of the clamping groove ensures that the center line of a pipe is overlapped with the center line of the rotary die when the pipe is placed at the bottom of the clamping groove; and a pipe clamping die assembly for clamping the pipe to abut against the bottom of the clamping groove is arranged on the corner seat. The device is arranged near a pipe bending wheel module on the pipe bending machine, assists the pipe bending wheel module in pipe bending, is simple and compact in structure and small in occupied space, can accurately guarantee the rotating angle of a pipe, and greatly improves the percent of pass of products.

This application relates to the field of photovoltaic (PV) bracket design, and provides an adjustable solar PV bracket, including a main beam, at least one support column, and at least one semi-circular panel frame. The support column is fixed to a foundation carrier, and the main beam is rotatably mounted on the top of the support column. The semi-circular panel frame is fixed to the main beam, and an adjustment mechanism is provided between the semi-circular panel frame and the support column. The support column is equipped with a locking mechanism for positioning the rotation angle of the semi-circular panel frame. The locking mechanism includes a rotating rod and a sliding rod. The rotating rod is rotatably connected to the support column, and the rotation of the rotating rod can drive the sliding rod to move axially. In addition, a housing component is fixed to the side of the support column for covering the rotating rod and the first panel frame. Based on this, the accidental change of the installation angle of the PV bracket can be reduced, ensuring that the PV panel maintains good power generation efficiency.