3 results about "Detent force" patented technology

The invention relates to the technical field of elderly nursing equipment, and discloses an autonomous bathing nursing device suitable for the elderly with physical inconvenience, which comprises a fixed shell, a fixed seat is slidably connected in the fixed shell, a connecting block is slidably connected in the fixed seat, and a driving cavity and a square notch are formed in the connecting block. A trigger end of a driving assembly is rotationally connected into the driving cavity; the driving assembly comprises a worm, the worm is meshed with a worm gear, the worm gear is fixedly connected to the rotating shaft, cams are fixedly connected to the positions, close to the two ends, of the rotating shaft, and the cams abut against the trigger ends of the wiping assemblies. According to the invention, the horizontal torque of the motor is efficiently converted into rotation power through the worm-worm gear, the self-locking characteristic of the worm-worm gear can effectively prevent accidental inversion in the power transmission process, and the operation stability is ensured; and the cam and the V-shaped connecting rod are matched to enable the wiping assembly to do arc-shaped wiping action, so that stiff friction to the skin of the old people is reduced, and discomfort is reduced.

The application discloses a Stirling cryocooler, which comprises a cylinder assembly, a power piston assembly and a linear motor assembly, the power piston assembly comprises a power piston and a power plate spring, the cylinder assembly comprises a power cylinder, and the linear motor assembly is configured to drive the power piston to make linear reciprocating motion in the power cylinder; wherein, a deviation prevention structure and a pneumatic suspension structure are arranged on the power piston and the power cylinder, the pneumatic suspension structure comprises a gas floating hole arranged on the power piston; the deviation prevention structure comprises a cylinder deviation prevention hole arranged on the power cylinder and an annular deviation prevention groove, a power piston deviation prevention hole and an axial channel arranged on the power piston. The cryocooler can effectively prevent the power piston from generating deviation and current surge in operation and improve the reliability and service life of the vibration reduction structure by improving the internal structure, in particular the deviation prevention structure and the power absorber structure.

The utility model discloses a transmission structure of a tray threading device, which relates to the field of tray threading devices and comprises a front side plate and a rear side plate, the front side plate and the rear side plate form a shell, two groups of driving components are mounted on one side of the front side plate, a transmission shaft is arranged at the output ends of the driving components, a chain wheel is sleeved on the outer wall of the transmission shaft, and the chain wheel is sleeved on the outer wall of the transmission shaft. Sliding grooves are formed in the inner walls of the interiors of the front side plate and the rear side plate correspondingly, and upper guide chains and lower guide chains are arranged on the inner walls of the sliding grooves. The running stability of the threading device is improved through transmission of the two sets of chain wheels, command programming can be executed on the motor through the control unit, the extension length of the upper guide chain or the lower guide chain can be dynamically and respectively adjusted, the threading requirements of trays of different specifications are met, and braking of the chains is stopped through the motor; and the connecting pieces are arranged in an I shape, and small-range limiting rotation between the two sections of connecting pieces can be achieved through mutual cooperation of limiting blocks and limiting grooves.