38results about How to "Flexible and convenient rotation" patented technology

The invention provides a fixing part connected with a photo frame backboard. The fixing part comprises a rotating portion and a fixed portion connected with a photo frame, one end of the rotating portion is connected with the fixed portion, the other end of the rotating portion is connected with a fixing substrate for fixing the photo frame, and a concave rotating surface and a convex rotating surface are connected in an embedded manner to form the rotating portion. The invention further provides a method for manufacturing the fixing part connected with the photo frame backboard. The fixing part is simple and reasonable in structure, high in mechanization degree, convenient to use, fine in mounting consistency and high in production efficiency, and can be effectively and firmly connected and can flexibly rotate.

The invention relates to a reversible operating mechanism for an isolating switch. The reversible operating mechanism comprises a box, a manual transmission unit installed in the box, a mechanical transmission unit installed in the box, and a reversing unit installed at the upper end of the box. The reversing unit comprises a base. A round through hole is formed in the middle of the base. A crankshaft is installed in the round through hole and comprises a cylindrical embedding section located at the lower end, and an L-shaped connecting section located at the upper end. The embedding section is embedded into the round through hole in the base, the bottom end of the embedding section is connected with a transmission connecting rod through a key, and a universal joint is connected to the upper end of the connecting section. The outer end of the universal joint is sleeved with a rotating frame. The universal joint and the rotating frame are fixedly connected through a hinge pin. The rotating frame is connected with a transmission shaft of the isolating switch. The reversible operating mechanism has the advantages that by means of the reversible property of the mechanism, the installing modes of the isolating switch are diversified, and multiple shaft outputting and installing modes such as shaft outputting from the upper portion, shaft outputting from the left side and shaft outputting from the right side of the operating mechanism are achieved.

The present invention relates to material conveying apparatus comprising parallel 45 deg roller pedestals and 90 deg roller pedestals. The 45 deg roller pedestal is the combination of at least two 45 deg roller semi-pedestals set around the main axis, and 45 deg rollers with rotating shaft in the angle to the main axis of 45 deg are arranged in parallel around the main axis. The 90 deg roller pedestal is the combination of at least three 90 deg single roller pedestals set homogeneously around the main axis, and 90 deg rollers with rotating shaft in the angle to the main axis of 90 deg are located on the 90 deg roller pedestal. There are two bosses set on two ends of the 45 deg roller pedestal, one of the two bosses is fitted to the notch on one end of the 90 deg roller pedestal, and the 45 deg roller pedestal and the 90 deg roller pedestal are screwed into one integral structure.

The invention relates to a sick and wounded personnel handling device. A base is of a round table-shaped structure, a rotary supporting rod is fixedly installed at the central position of the base, the outer portion of the rotary supporting rod is sleeved with a rotary supporting rod sleeve, the bottom portion of the rotary supporting rod sleeve is connected with a rotary platform, an upright rod is fixedly installed on the rotary supporting rod sleeve, an inclined supporting rod is fixedly installed on the upright rod, a first pulley is arranged at the top end of the upright rod, a second pulley is arranged on an end portion of the inclined supporting rod, a stay cord is arranged on the first pulley and the second pulley, one end of the stay cord is connected with a motor arranged on the rotary platform, the other end of the stay cord is connected with a four-rope grab bucket, and a sick and wounded personnel protective sleeve is arranged on the inner side of a grab body of the four-rope grab bucket. When the sick and wounded personnel handling device is in use, the four-rope grab bucket is used for driving the sick and wounded personnel protective sleeve to move so as to grab a sick and wounded person upward from the ground or the horizontal platform, the sick and wounded person is grabbed into the sick and wounded personnel protective sleeve safely at a time, and then the sick and wounded person is conveyed to the position of a set object or a specific object.

The invention discloses a telescopic folding braking crank for hand braking of a rail vehicle. Chutes are formed inside both ends of a rotating rod; sliding rods are arranged in a sliding mode in the chutes; handgrips are arranged on the sliding rods; the sliding rods as well as the handgrips can slide in the chutes together, and stop blocks for preventing the sliding rods from falling out of the chutes are arranged at one ends of the sliding rods, which are positioned in the chutes; the handgrips are hinged to the sliding rods, can rotate around hinged shafts, and form two relative position states with the rotating rod, i.e., a perpendicular state and a parallel state. According to the telescopic folding braking crank disclosed by the invention, a length of the rotating rod is designed into an adjustable length, and a suitable length can be selected according to the space size of an operation environment; the length of the rotating rod is regulated, and rotating radii of the handgrips are changed, so that rotation of the handgrips becomes more flexible and convenient; the rotating rod with a proper length can be selected according to personal conditions, so that the telescopic folding braking crank is more comfortable and efficient to use; the rotating rod can extend and retract and the handgrips can be folded, so that the space is saved, and the telescopic folding braking crank is also more attractive in appearance.

The invention belongs to the technical field of medical service equipment, and discloses a hand-operated type automatic mounting and dismounting stretcher to achieve the technical purposes that by means of the hand-operated type automatic mounting and dismounting stretcher, canvas can directly pass through the part below the human body, and the safety guarantee of a patient is enhanced. According to the technical scheme, a transverse plate of a first long edge rod of a framework is provided with a fixing rolling rod, a movable pull plate is located in the middle of the framework and is parallel to the first long edge rod, a plate body of the movable pull plate is transversely provided with a plurality of sets of guiding rolling pipes in parallel, one end of a double-layer canvas belt is fixedly connected with the fixing rolling rod and winds the fixing rolling rod, the other end of the double-layer canvas belt is divided into two layers which are turned through the corresponding guiding rolling pipes to be fixedly connected with the transverse plate of the first long edge rod to form a multi-layer cloth belt, the two ends of the fixing rolling rod are connected with the two ends of the movable pull plate through steel wires and pulley sets respectively, a second long edge rod of the framework is provided with a buckle, and the two ends of the fixing rolling rod are provided with hand-operated device transmission devices for controlling rotation of the fixing rolling rod. The hand-operated type automatic mounting and dismounting stretcher can be widely applied to rescuing patients.