A bolt arrangement may connect at least two mechanical elements. The arrangement may provide a bolt including an outer circumferential peripheral surface extending in a longitudinal direction of the bolt, and a sleeve presenting an outer circumferential peripheral surface and an inner circumferential peripheral surface extending in a longitudinal direction of the sleeve between a first and a second axial end of the sleeve. The inner peripheral surface provides a tapering profile in its longitudinal direction. A portion of the outer peripheral surface of the bolt provides a corresponding tapering profile matching the tapering profile of the inner peripheral surface of the sleeve. The sleeve further provides a portion extending radially outwards at one of the first and second axial ends.

A connection arrangement (4, 4) of two components (1, 2) according to the invention has a curved surface portion having a contact point on at least one of these components. The curved surface portion can extend over the entire surface of a groove, for example. The other component has a taper. When assembling the two components before a force is applied, a line connection is created from the 2-contact point connection and when force is applied, the line connection changes through plastic deformation into a strip connection, on the basis of which the two components (1, 2) hold together.

A joint includes a solid rod having a slit or opening into which a wedge is inserted. The rod and wedge are inserted into a fitting. The internal surface of the fitting has a contour which continuously and nonlinearly varies with distance along the fitting. The wedge has a dimension having a similar contour. The shape of the contour can be described by a polynomial of order two or higher.

A quick connect assembly having a male terminal with a plurality of circumferentially arrayed and elongated beams including forward-most arcuate projecting and outer diameter defining portions. A female terminal has a housing exhibiting an inner diameter inlet communicating with an interior arcuate and expanded extending recess which matches a profile defined by the outer diameter beam portions. A forwardly spring biased plug is displaceably supported within the female terminal housing and includes a forward most projecting snout portion which, upon installation of the male to female terminals, the projecting snout portion of the plug seats between the male beams, preventing unintended collapse and remove of the male beams from within the female housing.

The disclosure provides an assembly method of inner ring threaded-connection component device of wind-power locking plate. An internal thread (5) is processed in an inner hole of an inner ring flange (2), an external thread (4) is processed on an outer conical surface (8) at an large opening end of an inner ring (3), and after the processing of the internal thread (5) and the processing of the external thread (4) are respectively completed, an inner ring assembly formed by integral threaded connection of the inner ring flange (2) and the inner ring (3) is connected with the outer ring (1) through bolts so as to form a locking plate component; a shaft sleeve (9) sleeves the locking plate component to ensure that the inner hole of the inner ring (3) matches with the outer circumference of the shaft sleeve (9).

A method of manufacturing a hydraulic plug. A shell with a circumferential wall, a sealed end, an open end and an axially extending cavity within is provided in which the cavity is defined by an internal surface with an inner diameter which narrows towards the open end. A head of an expander is inserted into the cavity, the expander further comprising a stem extending from the cavity for applying a tensile force (T) to the head. A sleeve is provided on a stem side of the head extending into the cavity, an end of the sleeve adjacent the head having an inner diameter which is less than a maximum outer diameter of the head. The sleeve is formed by expanding the sleeve by forcing the head into the end of the sleeve through urging the sleeve and/or expander towards the other in an axial direction.

A refrigerant-channel branching component for connecting a connection pipe connected to an outdoor unit with a connection pipe directed toward a plurality of indoor units, the refrigerant-channel branching component includes: an inlet portion; and outlet portions. At least one of the plurality of outlet portions includes: a reference space into which a reference connection pipe with a predetermined outside diameter is inserted; a first space that is adjacent to the reference space and has an inside diameter greater than an inside diameter of the reference connection pipe; and a second space that is adjacent to the first space and has an inside diameter greater than the inside diameter of the first space.

Attachment device including: a conical insert in the form of a truncated cone, an internal ring which is provided with a recess in the form of a truncated cone the diameter of which narrows in the direction of the interior of the tube and the angle of which is equal to the angle of the truncated cone of the conical insert, and an external ring comprising a cylindrical portion the internal diameter of which is substantially equal to the external diameter of the tube, the external ring comprising a shoulder which partially closes an end of the external ring and which has a circular opening, the shoulder comprising an annular internal face which is intended to abut the end face of the tube and the transverse end face of the internal ring located at the side of the end of the tube.

The present invention relates to a screw actuated mechanical tubular elements connection system to connect a first tubular element provided with a screw hole with a second tubular element via a connector assembly adapted to be inserted into the passages of the tubular elements. The connector assembly includes a rigid body with a foot portion, a movable gripping element, a movable screw actuated portion and a transmission between these movable elements. The tubulars connection system is operable such that upon actuation of the screw, in succession the gripping element exerts a pushing force perpendicular to the wall, to provide a gripping connection between the movable gripping element and the inner surface and an engagement between the foot portion and the opposed inner surface, and a pulling force to pull the second tubular element towards the first tubular element.

A tension rod has an outer shaft slidably receiving an inner shaft. A tension mechanism includes a partially threaded rod with a threaded portion. A first end extends from the threaded portion and is adapted for fixing to an inner surface of the inner shaft; a second end has a tapered body with a greater transverse dimension closer to the second end. A wedge has a slot and an inner surface in facing sliding engagement with the tapered body between a nut threadedly engaged with the threaded portion and the second end. The nut is rotationally fixed to the outer shaft. Upon relative rotation of the inner and outer shafts, the nut moves along the threaded portion toward the second end, the wedge abutting and moving with the nut. The wedge contacts the tapered body, expands radially, and contacts the inner surface of the outer shaft, locking the shafts together.