41results about How to "Adjust the range of motion" patented technology

The invention discloses a foldable and rail-variable upper and lower limb coordinated movement training chair which comprises a seat chair, a transmission device arranged at the lower part of the seat chair and a rack positioned at two sides of the seat chair, wherein two sides of the transmission device are respectively provided with an overhung driving shaft and an accessory shaft; one end of a crank of a seven-link mechanism at two sides of the seat chair is fixedly connected with the driving shaft, and the other end of the crank is hinged to the head end of a first connecting rod to form a rotating pair; the tail end of the first connecting rod is hinged to the head end of a second connecting rod to form a rotating pair; the tail end of a second connecting rod is hinged to the head end of a connecting rack rod to form a rotating pair; the tail end of the connecting rack rod is fixedly connected with the accessory shaft and hinged to the rack to form a rotating pair; one end of a third connecting rod is hinged to the crank or the first connecting rod or the second connecting rod to form a rotating pair, and the other end of the third connecting rod is hinged to the bottom end or the middle of a rocker to form a rotating pair; the middle or the bottom of the rocker is hinged to the rack to form a rotating pair; the first connecting rod or the second connecting rod is provided with a foot support; the upper end of the rocker is provided with a handle. The foldable and rail-variable upper and lower limb coordinated movement training chair is simple in structure and wide in application.

The invention discloses a motor-driven cloth puller which comprises frames. The frames comprise a fixed frame and a rotating frame. A stepping motor is installed above the fixed frame, an output shaft of the stepping motor penetrates the fixed frame to be connected with a first driving pulley, the first driving pulley is connected with a first driven pulley through a first belt, an axle of the first driven pulley penetrates the fixed frame and the rotating frame to be connected with a second driving pulley, the lower end of the rotating frame is connected with a cloth press support in a rotating mode, a support pulley is installed at the connection portion of the rotating support and the cloth press support, a second driven pulley is installed at the other end of the cloth press support, and a second belt is wound around the support pulley to be connected onto the second driving pulley and the second driven pulley. The cloth puller adopts the stepping motor as a power source and is simple in structure, accurate in operation and convenient to use.

The invention discloses a six-degree-of-freedom water tank navigator suitable for submerged ice-breaking research. The navigator mainly includes three parts: a guide rod movement mechanism, a cam movement mechanism and a waveform monitoring mechanism, wherein the guide rod movement mechanism and the cam movement mechanism The cooperation between the two mechanisms enables the submersible to produce a six-degree-of-freedom combined motion of surge, sway, heave, roll, pitch and yaw. The waveform monitoring mechanism is used to record the bending deformation response of the ice layer excited when the submerged body moves with different combined degrees of freedom. The ice water pool test instrument provided by the present invention can flexibly adjust the motion state of the submersible in the pool according to the experimental research requirements, and then explore the ice-breaking efficiency of the submersible under different motion states, and provide data support for the submersible to break ice and discharge water.

A recovery apparatus for exercising the hand muscles, improving the flexibility of hand movement and promoting the recovery of the patients of cerebrovascular disease and apoplexy by tracting the joints of hand is composed of fingers moving unit, crank module and finger pair moving unit. Several crank-slide block mechanisms are used to regulate the movement mode, angle, phase and stroke.