3 results about "Rigid line" patented technology

The application discloses a high-rigidity linear sliding rail with automatic centering and four-direction load capacity, and particularly relates to the technical field of linear sliding rails, and comprises a guide rail, a sliding block is slidably arranged on the top of the guide rail, and a transmission unit is arranged on the inner side top end of the sliding block and comprises two groups of upper load bearings arranged in a symmetrical mode. The four-column circular-arc ball groove and the 45-degree contact angle of the steel ball can balance the four-direction load of the radial direction, the reverse radial direction and the horizontal and vertical directions, and realize automatic centering. Four groups of pre-pressing clamping positioning blocks are arranged between the sliding block and the bottom end of the guide rail, so that the installation precision and the operation stability of the sliding block on the guide rail can be obviously improved, the deviation and vibration in the sliding process can be further inhibited, the accurate positioning and the guiding constraint for the linear motion can be continuously provided, the high-precision smooth sliding of the sliding block along the guide rail axis direction is realized, and the positioning precision and the motion smoothness in the linear transmission process are double-protected.

A gasket (100) for placement over a stator pole (406) includes a rectangular material. The rectangle comprises: a first side (101) opposite a third side (103) of equal length; a second side (102) opposite a fourth side (104) of equal length; a plurality of inner lugs (111, 113) located on the inner edges of the first side (101) and the third side (103); outer lugs (121, 123) located on the outer edges of the first side (101) and the third side (103); an inner lug (134) located on an inner edge of the fourth side (104); two second projections (152) located at opposite ends of an outer edge of the second side (102); and two fourth projections (154) located at opposite ends of an outer edge of the fourth side (104).

The utility model relates to the field of unmanned aerial vehicles, and discloses a multi-rotor training unmanned aerial vehicle which comprises a center plate and a folding mechanism, a protective cover is detachably connected to the upper portion of the center plate, a battery bin is arranged under the center plate, racks are arranged on the two sides of the battery bin, the racks are fixedly connected with the lower portion of the center plate, and the folding mechanism is arranged on the center plate. One end of the rack is fixedly connected with a rack cross rod, a first folding arm is fixedly connected to the side wall of the center plate, and the first folding arm is connected with a second folding arm through a folding mechanism. The folding mechanism is provided with a button and an elastic element, mechanical locking can be formed while operation convenience is improved, the structural rigidity and stability of the folding arm during flight are ensured, accidental folding caused by vibration is avoided, flexible cable grooves are formed in the joints of the folding mechanism, telescopic wires are arranged in the folding arm, and the folding arm is convenient to fold. And excessive stretching or bending damage caused by folding of a traditional rigid line is avoided.