An elastic connecting element, a processing method thereof and a flexible drill including the elastic connecting element are provided. The elastic connecting element includes an elastic part and an outer housing sleeved over the elastic part, the outer housing being formed by connecting a plurality of connecting bodies; the connecting body including a main body and convex teeth provided at two ends of the main body; a groove being formed between each two adjacent convex teeth in each connecting body, such that the two adjacent connecting bodies are connected by fitting the convex teeth of one connecting body with the grooves of the other connecting body.

A bending mechanism includes: a shaft part; a bendable part linked to the shaft part; a forward end part linked to the bendable part; an operating rod or an operating wire inserted through grooves or holes of the shaft part and the bendable part and having a distal end thereof fixed to the bendable part; and a pressing portion configured to be able to press the operating rod or the operating wire against a fixed portion of the shaft part. The bendable part is configured to be bendable as a result of the operating rod or the operating wire being operated in an extending direction thereof. The operating rod or the operating wire is configured such that, when pressed against the fixed portion of the shaft part by the pressing portion, the operating rod or the operating wire is fixed by friction force.

Disclosed herein is an articulated support device. The articulated support device is formed to include a plurality of links connected to each other. A device stand is detachably coupled to the front end of the articulated support device and the rear end of the articulated support device is fixedly coupled to a structure detachably. The connection portions of the plurality of links are fixed not to move relative to each other or the connection portions are released to be rotatable relative to each other through an operation of a handle part provided on a front side of the articulated support device. The articulated support device includes a plurality of rotation and fixing units. Each of the plurality of rotation and fixing units includes a front link connection adapter, a wire central binding portion, a rotation regulation portion, a casing pipe, and an inner connection pipe.

An intramedullary affixing apparatus, comprising: a hollow shaft suitable for insertion into a bone and adapted to accommodate a proximal anchoring device, a transmission arrangement, and a distal anchoring device, wherein the hollow shaft comprises a proximal threaded actuator and a distal threaded actuator, wherein the threading-in of the proximal threaded actuator exerts a linear motion of the proximal anchoring device, the transmission arrangement, and the distal anchoring device towards the distal edge of the hollow shaft and the threading-in of the distal actuator exerts an opposite motion.

A wrist assembly for a surgical instrument includes a proximal joint member, a middle joint member, and a distal joint member. The proximal joint member defines a concavity formed in a distal facing surface thereof. The distal joint member defines concavity formed in a proximal facing surface thereof, a longitudinally extending central lumen, and a plurality of longitudinally extending radial lumens arranged in a radial array around the central lumen thereof. The middle joint member is interposed between the proximal joint member and the distal joint member. The middle joint member includes a proximal ball connector extending proximally therefrom and a distal ball connector extending distally therefrom, wherein the proximal ball connector is seated within the concavity formed in the distal facing surface of the proximal joint member and the distal ball connector is seated within the concavity formed in the proximal facing surface of the proximal joint member.

An all-terrain vehicle includes a frame; a cab located in the middle of the frame; a front axle located in front of the cab; a power assembly located behind the cab; and a transmission structure coupled to the front axle and the power assembly, and comprising a front transmission shaft, a rear transmission shaft, and an intermediate transmission component, the intermediate transmission component having a first end coupled to the front transmission shaft and a second end coupled to the rear transmission shaft; an end, away from the intermediate transmission component, of the front transmission shaft being coupled to the front axle, and an end, away from the intermediate transmission component, of the rear transmission shaft being coupled to the power assembly; and a connection point between the intermediate transmission component and the front transmission shaft being located in front of the cab.

An all-terrain vehicle includes a frame; a cab located in the middle of the frame; a front axle located in front of the cab; a power assembly located behind the cab; and a transmission structure coupled to the front axle and the power assembly, and comprising a front transmission shaft, a rear transmission shaft, and an intermediate transmission component, the intermediate transmission component having a first end coupled to the front transmission shaft and a second end coupled to the rear transmission shaft; an end, away from the intermediate transmission component, of the front transmission shaft being coupled to the front axle, and an end, away from the intermediate transmission component, of the rear transmission shaft being coupled to the power assembly; and a connection point between the intermediate transmission component and the front transmission shaft being located in front of the cab.

A segmented driveshaft for transmission of torque and thrust loads from one member to another along an eccentric axis of rotation. The segmented driveshaft includes a plurality of pivotally interconnected vertebrae that is distributed along a connecting rod that is pivotally connected to a drivetrain assembly. The each vertebra has male and female interlocks that are pivotally mated with the male and female interlocks of an adjacent vertebra. Interposed between the adjacent vertebrae are independent male and female pivots that pivotally engage with each another. The pivotally mated interlocks of adjacent vertebrae and the pivotally engaged pivots allow the driveshaft to extend between connecting points of a drivetrain assembly that have offset axes of rotation.

A segmented driveshaft for transmission of torque and thrust loads from one member to another along an eccentric axis of rotation. The segmented driveshaft includes a plurality of pivotally interconnected vertebrae that is distributed along a connecting rod that is pivotally connected to a drivetrain assembly. The each vertebra has male and female interlocks that are pivotally mated with the male and female interlocks of an adjacent vertebra. Interposed between the adjacent vertebrae are independent male and female pivots that pivotally engage with each another. The pivotally mated interlocks of adjacent vertebrae and the pivotally engaged pivots allow the driveshaft to extend between connecting points of a drivetrain assembly that have offset axes of rotation.

A tool called a spinner is interposed between a rotary driver and a flexible shaft that is being rotated and moved axially when a duct or chimney is being cleaned by a whip head at the end of the shaft. A tubular shape collar has a home position on the body of the spinner. Grasping and holding the collar at its home position, while the driver rotates, helps steady the driver as the body moves within the collar. To dampen oscillation of the shaft, the collar is moved lengthwise from the body, and along the shaft to a working position where it is held manually. The collar is retained on the body by frictional means. A user can overcome the retaining force and, without using a second tool, slide the collar off the body and along the shaft to the working position, while the spinner is rotating or stationary.