FOSITEK CORPORATION

A quick connect female coupler structure includes an outer sleeve internally defining a receiving space and having a radially inward annular stop section formed around a lower end thereof; a fixed member having a lower end formed into a limiting section to rest on the stop section of the outer sleeve; a spring fitted around the fixed member; a movable member axially movably fitted around an upper end of the fixed member; and a coupling sleeve having the fixed member received therein with a lower end thereof pressed on the limiting section and assembled to the outer sleeve. With the above arrangements, the fixed member is stably held by the outer sleeve and the coupling sleeve to an axially centered position in the outer sleeve; and the quick connect female coupler structure has simplified structure, low failure rate, reliable connection, and good airtightness.

A sliding rail device includes an exterior frame, an outer rail, an intermediate rail, and a blocking mechanism that has a positioning member, a blocking member having a blocking protrusion and a blocking groove, a linking piece sleeved on the positioning member, and a resilient member. When the intermediate rail is moved relative to the outer rail in a longitudinal direction, the positioning member is pushed by the blocking member to move downwardly along an inclined portion of the blocking groove, and is consequently adapted to move a linking member downwardly. When the intermediate rail is moved in a direction opposite to the longitudinal direction relative to the outer rail, the positioning member is driven by a resilient force of the resilient member, via the linking piece, to move upwardly along the inclined portion.

A fluid coupler includes a body with a docking platform, a support portion annularly disposed around the body's first end adjacent to the docking platform's rear side, a valve assembly, a switch member, and an interlocking mechanism. The support portion contains a limiting cavity and a latch pin hole, the limiting cavity communicating with a safety pin hole and the latch pin hole opening at the first mounting surface. The valve assembly has a valve ball with a passage, pivotally mounted in the body. The switch member, on the first mounting surface, includes a handle with a limiting groove and a latch tongue. The interlocking mechanism features a safety pin with an annular groove in the limiting cavity, a spring maintaining its position, and a latch pin matching the handle's limiting groove and the safety pin's annular groove for locking or unlocking the handle.

A female coupler connection structure includes a main body having an internal plugging passage and a front engagement section with two diametrically opposite tangential slots communicable with the plugging passage; a retaining module fitted around the engagement section and including two pin members that pass through the tangential slots into the plugging passage to provide an actuation portion; a spring having two ends pressed against the retaining module and an annular locating groove formed around the engagement section; and a pulling cover fitted around the retaining module, which has a front end pressed against the pulling cover. A male coupler can be locked to or unlocked from the plugging passage by moving the pulling cover to swing the pin members. The female coupler connection structure requires a relatively short operating distance and can be advantageously used in a relatively narrow space to connect to or disconnect from the male coupler.

A slide rail device for a server case includes an outer rail unit, a middle rail unit and an inner rail unit. The outer rail unit includes an outer rail having outer first and second ends, and an outer abutting protrusion adjacent to the outer second end. The middle rail unit includes a middle rail slidable along the outer rail, and a detent member pivotably disposed on the middle rail. The detent member is in abutting engagement with the outer abutting protrusion to prevent sliding movement of the middle rail relative to the outer rail. The inner rail unit includes an inner rail slidable along the middle rail, and a releasing member moved to abut and press the detent member, during sliding movement of the inner rail, to make the detent member turn so as to release the detent member from the outer abutting protrusion.

A support frame for a server cabinet includes a first rod member, a second rod member, a third rod member and a connection unit. The first rod member extends in a first direction. The second rod member and the third rod member are respectively disposed on opposite ends of the first rod member that are spaced apart from each other in the first direction. The second rod member is slidable relative to the first rod member in the first direction between a usage position and a storage position. The third rod member is pivotable relative to the first rod member between an unfolded position and a folded position. The connection unit is disposed on the first rod member, the second rod member and the third rod member for being connected to the server cabinet.

A sliding rail securing device includes a rear support unit, a front support unit, and a reinforcement structure. The rear support unit has at least one first through hole unit. The at least one first through hole unit each includes a plurality of first through holes that are arranged in a front-rear direction. The front support unit is adapted to be mounted to a sliding rail, is connected to the rear support unit, and is movable along an axis extending in the front-rear direction for adjusting a length of the sliding rail securing device. The reinforcement structure is mounted to the rear support unit. The reinforcement structure and the at least one first through hole unit are arranged in a top-bottom direction transverse to the front-rear direction.

A sliding rail securing device includes a front support rail, and a front bracket module including a front bracket, and a front lock member pivotally mounted to the front bracket, and including a position hook adapted to be engaged with a chassis hook member of a chassis. The front support rail is movably connected to the front bracket, and is adapted to be fixed to a sliding rail. When the front support rail is in an unlocked state and the position hook is adapted to be spaced apart from the chassis hook member, the front support rail is rearwardly movable relative to the front bracket during rearward movement of the chassis, thereby driving the chassis hook member to move rearwardly and engage the position hook.

A roller screw bidirectional and alternated preloading structure includes a screw, a nut fitted around the screw, a roller unit including first and second rollers alternately arranged between and meshing with the screw and the nut, two preload maintaining units located at two ends of the roller unit and respectively including a retainer including retaining holes for receiving locating ends of the rollers and a metal spring including circumferentially spaced elastic protrusions tilted toward the roller unit and radially offset from the retaining holes, and a retaining unit. Gaps are formed between bottoms of the retaining holes and the locating ends, while the elastic protrusions are pressed against and elastically deformed by pointed ends of the rollers to create two opposite preloads alternately applied to the first and second rollers from two directions. This structure compensates fitting gaps and enables increased transmission accuracy and motion stability of the roller screw.

A mistouch prevention locking structure includes a main body, a sleeve, and a pressing assembly. The main body with a plug channel formed inside, a combination groove recessed in the plug channel of the main body, and a hole penetrating from one side of the combination groove. The sleeve is disposed outside the main body and is provided with an opening. The pressing assembly has a ring body, a pressing body and a spring, the ring body is arranged in the combination groove, the pressing body is arranged inside the opening and is connected to the ring body through the hole, the spring is located between the pressing body and the main body. One end of the main body is provided with a stopper, the outer diameter of the stopper has the same height as a pressing surface of the pressing body or is slightly higher depth.