2results about How to "Fixed and reliable" patented technology

This utility model relates to the field of steel formwork installation technology and discloses a steel formwork positioning structure. The steel formwork has positioning components installed on all four sides, and fixing holes are provided on all four sides. Positioning pins are installed on one side in both the horizontal and vertical directions, and positioning holes are provided on the corresponding positions on the other side. Adjustment holes are provided next to the positioning holes in the vertical direction. This steel formwork positioning structure, through the design of concave-convex fits on the left and right sides and rotatable positioning pins, achieves rapid alignment and initial locking of the steel formwork in the left and right directions. The concave and convex designs form a natural guide channel, eliminating the need for precise manual calibration during assembly. The convex side can naturally slide in along the mating surface of the concave side, significantly reducing the difficulty of positioning alignment. Furthermore, after the pin passes through the positioning hole, the head is rotated to be arranged laterally, utilizing the characteristic that the head length is greater than the width of the positioning hole to lock into the hole, effectively preventing the formwork from shifting before subsequent pin fixing.

The invention discloses an inner buckle type brushless motor and a manufacturing method thereof, the inner buckle type brushless motor comprises a rotor, a stator and an output shaft, the rotor is arranged on the periphery of the stator, the rotor sleeves the output shaft, the rotor comprises a shell, a cover block and a permanent magnet, the shell is provided with an accommodating cavity, and the permanent magnet is arranged in the accommodating cavity. The shell is provided with an inverted buckle extending towards the center of the containing cavity, the side portion of the cover block is provided with an annular groove, the bottom of the cover block is provided with an extending block, the extending block is embedded in the containing cavity, the inverted buckle is embedded in the annular groove, and the permanent magnet is embedded in the containing cavity and abuts against the extending block. According to the internal buckling type brushless motor, the cover block on the rotor can be fixed by the inverted buckle of the shell and the permanent magnet, compared with a traditional external pressing type cover block, the design is high in fixing reliability of the cover block, the concentricity of the cover block and the shell can be better guaranteed, the probability that the cover block is separated from the shell when the rotor rotates at a high speed is effectively reduced, and the service life of the motor is prolonged. And the safety is improved.