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The invention discloses a reed leaf cooking and drying device with a function of reed leaf damage prevention. The reed leaf cooking and drying device comprises an outer shell, supporting legs are arranged on the front side of the lower end of the outer shell, casters are connected to the rear side of the lower end of the outer shell, the front lateral side of the outer shell is provided with a drain groove, and a controller is mounted on the front lateral side of the outer shell. The rear lateral side of the outer shell is connected with a pull rod through a reset rotating shaft, a rainproof canopy is arranged at the upper end of the outer shell, the inner and outer walls of the outer shell are connected through a first connecting shaft, and the outer end of the first connecting shaft penetrates the outer wall of the outer shell to connect with a rotating disk. The reed leaf cooking and drying device is convenient for workers to move and convenient to discharge water drops formed by condensation of hot and humid air, continuous reed leaf drying is facilitated, residual water drops in the device are avoided, reed leaves can be placed separately conveniently, and accordingly reed leaf drying efficiency can be improved while reed leaf damages caused by reed leaf stacking can be prevented.

The invention belongs to the field of the detection of the bearing capacity of a pile foundation and engineering foundation pile, and particularly relates to a large-diameter pile self-reaction force detection device convenient for pouring the concrete. The large-diameter pile self-reaction force detection device comprises an upper steel skeleton and a lower steel skeleton, which are identical in structure, both the upper steel skeleton and the lower steel skeleton are respectively of an annular structure, a circular through hole is formed in the center of each of the upper steel skeleton and the lower steel skeleton, and the annular structure comprises an inner steel ring and an outer steel ring, and connecting steel sheets and V-shaped reinforcing ribs are distributed between the inner steel ring and the outer steel ring at an equidistance interval; a plurality of jacks are fixedly arranged between the upper steel skeleton and the lower steel skeleton, the top and the bottom of each jack respectively push the lower surface of the V-shaped reinforcing ribs of the upper steel skeleton and the upper surface of the V-shaped reinforcing ribs of the lower steel skeleton. By adopting the large-diameter pile self-reaction force detection device, the problem that the concrete is uncompacted to grout surrounding the box body in the pile forming grouting process can be solved, and more accuracy in detection of the bearing capacity of a grouting pile can be realized. By adopting the hollowed steel skeleton structure, the consumption amount of the steel material is saved; a sounding pipe is used for substituting a displacement pipe to determine the displacement of an upper plate and a lower plate, so that the operation procedures are simplified, and the consumption amount of the steel material is further saved.