137results about How to "Non-blocking" patented technology

The invention discloses a perming device with a diameter variable structure. The perming device comprises a perming assembly and a handle. The perming assembly comprises a perming cylinder, two fixing bases and two rotating pieces. The handle is connected with the perming assembly in the mode that clamping grooves are fixedly connected with the fixing bases in a clamped mode. The perming cylinder comprises a fixed perming cylinder component, a movable perming cylinder component, a middle shaft and two auxiliary perming cylinder components. The fixed perming cylinder component is arranged at the lower portion of the perming cylinder in the radial direction. The movable perming cylinder component is arranged at the upper portion of the perming cylinder in the radial direction. The two auxiliary perming cylinder components are oppositely arranged with the middle shaft as a symmetry axis. The movable perming cylinder component and the two auxiliary perming cylinder components penetrate through the fixing bases and are rotatably connected with the rotating pieces. Rotary knobs are embedded in the positions, corresponding to the clamping grooves, of the outer end of the handle. The rotary knobs are in mortise and tenon connection with the rotating piece at the outer end of the handle. The rotary knobs are twisted, the rotating pieces drive the movable perming cylinder component and the two auxiliary perming cylinder components to move, and the diameter of the perming cylinder is adjusted. The perming device is exquisite and ingenious in structure, convenient to use and capable of perming hair rollers with the different sizes ranging from 25 mm to 45 mm.

The invention discloses a leftward and rightward door opening mechanism and a refrigerator. The leftward and rightward door opening mechanism comprises a hinge module arranged on a refrigerator door body and a driving module arranged on a refrigerator box body, wherein the driving module comprises a driving bottom plate, two first gears oppositely arranged on the driving bottom plate, a driving rack driven through the first gears and second gears separately driven by the first gears, and the driving rack is guided and limited by the second gears; the hinge module comprises a hinge bottom plate and two hinges oppositely arranged on the hinge bottom plate, and the hinges drive the first gears; when the two hinges are both meshed with the first gears, the door body is locked; and when the hinge on one side is separated from the first gear but the hinge on the other side is still meshed with the first gear, the door body is open. As rotating shafts are arranged on the door body, the door can be opened from the left side as well as the right side without making any adjustment.

The invention discloses a left and right door opening mechanism and a refrigerator. The left and right door opening mechanism comprises a hinge module and a transmission module which are arranged on a refrigerator body and a refrigerator door body correspondingly. The hinge module comprises a hinge bottom plate and arc-shaped bosses located on the two sides of the hinge bottom plate, wherein the hinge bottom plate and the arc-shaped bosses are provided with open grooves toward the direction of the refrigerator door body. The transmission module comprises a transmission bottom plate and a plurality of shafts fixedly arranged on the transmission bottom plate. Each shaft comprises a first shaft body and a second shaft body, wherein the first shaft body is located in the corresponding open groove so as to achieve rotation of the door body, and the second shaft body is located outside the corresponding open groove so as to limit the corresponding arc-shaped boss. When the first shaft bodies and the second shaft bodies on one side of the transmission module leave the inner sides and the outer sides of the arc-shaped bosses, the first shaft bodies and the second shaft bodies on the other side of the transmission module are located on the inner sides and the outer sides of the arc-shaped bosses correspondingly, and the door body is opened. According to the left and right door opening mechanism and the refrigerator, the hinge module and the transmission module are provided with the arc-shaped bosses and the multiple shaft bodies correspondingly, and thus left side door opening and right side door opening can be achieved simultaneously under the circumstance without any adjustment.