46results about How to "Good locking function" patented technology

A swash plate assembly includes a rotationally stationary swash plate and rotational swash plate which rotates relative to the rotationally stationary swash plate through a bearing system. Each servo control rod is attached to the swash plate assembly to communicate control inputs thereto through a respective servo lug. Each servo lug defines a servo pivot point off an in-line plane inboard of the bearing system. As the servo lugs extend below the rotationally stationary swash plate, a relatively uncomplicated attachment arrangement is facilitated which provides for redundant locking features at a highly inspectable location which simplifies maintenance and increased safety. By locating the servo pivot point just inboard of the bearing system, an exceeding compact load path is defined thereby. The load path is defined from the servo control, to the servo lug, through the rotationally stationary swash plate, bearing system, the rotational swash plate, the rotor pitch control point and into the pitch control rod.

A detachable swim fin includes a foot pocket and a fin blade. The fin blade is movably connected to the foot pocket through a locking buckle mechanism. With the detachable design of the fin blade and the foot pocket, the present invention provides an amphibious function. When they are detached, the foot pocket is capable of protecting the foot when walking on land, like a beach shoe or a fishing shoe. When they are assembled, the present invention is used as a swim fin. When going out, the user could take apart the swim fin for carrying conveniently and flexibly. This provides a compact and light design.

The invention relates to an oil cylinder rotation type locking device of a hydraulic opening and closing machine. A fixed plate is rotationally mounted in a main oil cylinder; a through hole is formed in the fixed plate, and is formed by communicating two circular through holes positioned in the same arc; a locking rod penetrates through the through hole to be slidingly connected with the main oil cylinder; the through hole includes a first circular through hole and a second circular through hole; a shaft shoulder is arranged at one end of the locking rod; the radius of the first circular through hole is equal to the radius of the cross section of the locking rod; the radius of the second circular through hole is larger than the radius of the cross section of the shaft shoulder; and the fixed plate is driven to rotate through a rotation driving device. The oil cylinder rotation type locking device of the hydraulic opening and closing machine rotates the fixed plate to perform an arc motion with a pin shaft as circle center, realizes the switching of an unlocking state and a locking state of the locking rod, has an excellent locking function, is simple in operation, long in service life and stable in locking function, can effectively prevent the glide of a hydraulic oil cylinder, improves the safety of the hydraulic oil cylinder, and is low in cost and excellent in commercial prospect.

A screwing device includes a threaded hole that extends from an insertion opening to an end of the screwing device, which end is opposite the insertion opening. In the region of the insertion opening a first radial sealing element is arranged that by way of the insertion opening extends outwards in an axial direction of the hole. Spaced apart from the first sealing element in an axial direction of the hole a second radial sealing element is arranged in the screwing device with the internal diameter of the second radial sealing element being smaller than the external diameter of the threaded hole. In this manner a screwing device may be provided that is self-locking, exchangeable, and fluid-proof and that is suitable especially for vehicles and in particular for aircraft.