3results about How to "Large rotation" patented technology

The application discloses a mechanical gripper convenient to fold and store, and relates to the technical field of mechanical grippers.The mechanical gripper comprises a mechanical arm, a first fixed seat, a second fixed seat rotatably arranged on the first fixed seat along a horizontal plane, a first power unit arranged on the first fixed seat and used for driving the second fixed seat to rotate, the second fixed seat and one end of a first swing arm are connected in up-and-down swing mode, a second power unit arranged on the second fixed seat and used for driving the first swing arm to rotate, the other end of the first swing arm and a third fixed seat are connected in up-and-down swing mode, a third power unit arranged on the third fixed seat and used for driving the third fixed seat to rotate, a fourth power unit further arranged on the third fixed seat and used for driving a second swing arm to swing, and an end gripper arranged on the second swing arm and used for clamping an article.

The utility model discloses a guide rail mechanism and massage chair skeleton, its technical scheme main point is that guide rail mechanism includes back frame guide rail and seat frame guide rail, and back frame guide rail is equipped with back frame rack, and seat frame guide rail is equipped with seat frame rack, transition guide rail is connected in back frame guide rail and seat frame guide rail between in proper order, and the number of transition guide rail is at least two, and transition guide rail is equipped with transition rack, and massage chair skeleton includes guide rail mechanism, adopts two above -mentioned rotating connection's transition guide rail, adopts the setting of rotating connection point on rack graduation line, satisfies the rack when the rotation of guide rail can smoothly link, and through two above -mentioned transition guide rail makes back frame and seat frame rotation amplitude become big, makes the lying posture more comfortable.

This utility model provides a UV spectrophotometer with protective function, relating to the field of UV spectrophotometer technology. The utility model includes a spectrophotometer body, an operation panel on the top of the spectrophotometer body, a placement groove on the top of the spectrophotometer body, a connecting cover hinged to one side of the inner wall of the placement groove, and a protective device on the top of the spectrophotometer body. The protective device includes a support rod, which is fixedly connected to the top of the spectrophotometer body. A cylinder is fixedly connected to the surface of the support rod, a rubber sleeve is fitted onto the surface of the cylinder, a sponge sleeve is fixedly connected to the surface of the rubber sleeve, and a first damping rod is uniformly fixedly connected to the surface of the cylinder. When using the protective device, as the connecting cover rotates away from the top of the placement groove, the end of the connecting cover away from the placement groove presses against the surface of the cylinder, thus preventing excessive rotation of the connecting cover to a certain extent.