3results about How to "Adjustable friction" patented technology

This invention discloses an endoscope. The endoscope includes an endoscope body, a handwheel structure, and a damping structure. The endoscope body includes a housing and a curved portion located at the front end of the housing; the handwheel structure is rotatably mounted on the housing and connected to the curved portion; the damping structure is located inside the housing and has a damping surface that forms a frictional engagement with the handwheel structure; the handwheel structure can rotate relative to the housing under external force to adjust the bending angle of the curved portion; when the external force on the handwheel structure is removed, the frictional engagement between the damping surface and the handwheel structure restricts the rotation of the handwheel structure relative to the housing; the damping structure can move relative to the housing under external force to adjust the frictional force formed between the damping surface and the outer peripheral surface of the handwheel structure. This invention makes the handwheel structure less prone to jamming and smoother during use, and also prevents it from rotating arbitrarily, thus better ensuring operational stability and improving the user experience.

The utility model discloses a combined power distribution cabinet, which particularly relates to the field of power distribution cabinets and comprises a power distribution cabinet door structure and a horizontal power distribution cabinet structure which are mutually mounted in a combined manner. A plurality of wire harness positioning mechanisms for positioning component wire harnesses are mounted in the horizontal power distribution cabinet structure; the horizontal power distribution cabinet structure comprises a first power distribution cabinet frame part, second power distribution cabinet frame parts are fixedly installed on the two sides of the first power distribution cabinet frame part respectively, and a third power distribution cabinet frame part is fixedly installed on the side, away from the first power distribution cabinet frame part, of each second power distribution cabinet frame part. The combined power distribution cabinet adopts a flat design, the position of the combined power distribution cabinet is allowed to be flexibly adjusted in a narrow installation space, the plurality of power distribution cabinet frame pieces I are arranged in a positive and negative crossing or vertical stacking manner, so that equipment can be efficiently utilized in a limited space, the space utilization rate is greatly improved by the design, and the space utilization rate is reduced. The device is especially suitable for power distribution occasions with dense equipment.

The invention provides a reliable winch, comprising a motor, a transmission shaft, a reduction mechanism, a drum, a steel wire rope, a bracket, an overload limiter, a controller and a counter. The motor output shaft and the reduction mechanism are connected by transmission through the transmission shaft, the reduction mechanism is connected by transmission with the drum to drive the steel wire rope to be wound on the drum, the overload limiter comprises a first coupling, a second coupling, a first friction plate, a second friction plate and an adjusting member, the load on the steel wire rope is P1, the friction force between the first friction plate and the second friction plate is P2, the adjusting member can adjust P2, when P1≤P2, the first friction plate drives the second friction plate to rotate synchronously, when P1>P2, the first friction plate and the second friction plate rotate relatively to disconnect the connection between the motor output shaft and the transmission shaft, the counter measures the disconnection times N1 of the overload limiter, the controller is provided with a preset times N2, when N1≥N2, it indicates that P2 needs to be readjusted, the controller controls the motor to cut off power, and the reliability of the winch is improved.