75results about How to "Reduce moving friction" patented technology

The invention discloses a high-efficiency double-layer parking device. The high-efficiency double-layer parking device comprises a support frame, driving devices, telescopic rods, a moving device, anupper layer parking frame and a lower layer parking frame. The driving devices are arranged at the two ends o the bottom of the support frame and are used for driving the telescopic rods to carry outextending and shortening actions in the horizontal direction, and the length of each telescopic rod is larger than the width of the upper layer parking frame. One ends of the telescopic rods are connected with the driving devices, and the other ends of the telescopic rods are connected with the lower layer parking frame. An installing groove is formed in the bottom of the lower layer parking frame, rollers are arranged in the installing groove, and the bottoms of the rollers press the ground tightly. The moving device is slidably arranged on the support frame, and slides in the vertical direction. The upper layer parking frame is arranged on the end portion of the moving device, grooves are formed in the bottom of the upper layer parking frame, and the telescopic rods penetrate through thegrooves. The end portions of the upper layer parking frame and the lower layer parking frame are in slope shapes curving downward gradually. According to the high-efficiency double-layer parking device, the upper and lower layer parking frames are convenient to park, the high-efficiency double-layer parking device is convenient to use, the efficiency of parking and picking up cars is high, and parking is stable and safe.

The invention relates to the technical field of wall paint treatment, and discloses a hand-held preliminary scraping device for peeling paint on the wall, which includes a cylinder body, the right end surface and the top of the cylinder body are fixedly connected with hand-held handles, and the inner top of the cylinder body is A mounting plate is fixedly connected with the bottom, the right side of the mounting plate is fixedly equipped with a battery, the left side of the mounting plate is fixedly connected with a drive motor through a fixing frame, and the output shaft of the drive motor is fixedly connected with a torque shaft through a coupling , the inner side of the cylinder is fixedly connected with the discharge pipe through the mounting frame, the torque shaft runs through the right end face of the discharge pipe at the end away from the drive motor and extends to the inner side of the discharge pipe, and the torque shaft runs through the discharge at the end far away from the drive motor right end of the tube and extends to the inside of the discharge tube. The hand-held preliminary scraping device for peeling paint on the wall prevents the scraping paint from splashing, conveys, removes and collects the scraped paint residue, and facilitates the preliminary treatment of the peeling paint on the wall.

The invention belongs to the technical field of hoisting equipment, and particularly relates to a semi-suspension type single-beam crane which comprises a base, a stand column, a walking track, an electric travelling crane and an electric hoist. The stand column is vertically fixed to the top face of the base, the walking track is installed on the stand column in an overhanging mode, the electric travelling crane is movably installed on the walking track, the electric hoist is fixed to the bottom of the electric travelling crane, and limiting damping assemblies are installed on the front side face and the rear side face of the electric travelling crane correspondingly. An auxiliary walking structure is further mounted on the electric travelling crane, and the auxiliary walking structure comprises a mounting plate and a connecting frame. According to the semi-suspension type single-beam crane, through the configured auxiliary walking structure, it is guaranteed that the electric travelling crane is more stable during moving, moving friction is reduced, and the service life of equipment is prolonged; by arranging the limiting damping assemblies, the safety of the electric travelling crane is guaranteed, and the situation that the electric travelling crane collides with the walking track in the moving process and is damaged is avoided.