Abstract: An inner slide rail mounting structure for a two-stage server slide rail includes an outer rail, a front bracket, a rear bracket, an outer rail reinforcement bar and an inner rail. The front bracket is affixed to a front end of a front bracket supplementary rail that is slidably inserted into the outer rail reinforcement bar. The rear end of the front bracket supplementary rail is connected with a spring plate that has one end thereof connected to the outer rail reinforcement bar through a tension spring and an opposite end thereof fixedly connected with an outer rail ejection control plate that has an abutment portion abutted against the outer rail reinforcement bar and a press portion extended from the abutment portion for pressing by the user to release the abutment portion from the outer rail reinforcement bar.

Abstract: An inner slide rail mounting structure for a two-stage server slide rail includes an outer rail, a front bracket, a rear bracket, an outer rail reinforcement bar and an inner rail. The front bracket is affixed to a front end of a front bracket supplementary rail that is slidably inserted into the outer rail reinforcement bar. The rear end of the front bracket supplementary rail is connected with a spring plate that has one end thereof connected to the outer rail reinforcement bar through a tension spring and an opposite end thereof fixedly connected with an outer rail ejection control plate that has an abutment portion abutted against the outer rail reinforcement bar and a press portion extended from the abutment portion for pressing by the user to release the abutment portion from the outer rail reinforcement bar.

Abstract: A hydraulic damping device includes a cylinder holding a hydraulic fluid, a piston rod moving in and out of the cylinder and having a pin at one end inside the cylinder, a rigid valve block affixed to the inner end of the pin of the piston rod and having equiangularly spaced through holes, a retainer affixed to the outer end of the pin of the piston rod, a piston coupled to the pin of the piston rod and movable along the pin between the rigid valve block and the retainer and having a plurality of axially extending through holes, a number of the through holes of the piston being respectively aimed at the through holes of the rigid valve block for allowing the hydraulic fluid to pass through the piston in one direction at a high speed during outward stroke of the piston rod and to pass through the piston in the other direction at a low speed during inward stroke of the piston, and a shock absorber that buffers the impact of the rigid valve block when the piston rod is extended out of the cylinder.

Abstract: A hydraulic damping device for drawer includes a cylinder holding a hydraulic fluid, a piston rod moving in and out of the cylinder and having a pin at one end inside the cylinder, a rigid valve block affixed to the inner end of the pin of the piston rod and having equiangularly spaced through holes, a retainer affixed to the outer end of the pin of the piston rod, a piston coupled to the pin of the piston rod and movable along the pin between the rigid valve block and the retainer and having a plurality of axially extending through holes, a number of the through holes of the piston being respectively aimed at the through holes of the rigid valve block for allowing the hydraulic fluid to pass through the piston in one direction at a high speed during outward stroke of the piston rod and to pass through the piston in the other direction at a low speed during inward stroke of the piston and a plurality of spring strips for stopping against the rigid valve block, and a shock absorbing device that buffers the imp

Abstract: A sliding rail assembly support frame and server frame mounting arrangement includes two server frames provided at front and rear sides inside a server, two support frames each having a flat frame base respectively affixed to front and rear ends of the outer rail of a sliding rail assembly and a mounting flange perpendicularly extended from one end of the flat frame base and a plurality of cylindrical mounting members provided at the mounting flange and selectively inserted through mounting holes on the server frames, and two clamping plates respectively clamped on the mounting members to secure the support frames to the server frames.

Abstract: A inner sliding rail mounting structure is disclosed to include a control plate pivoted with a front side thereof to an inner sliding rail of a sliding track assembly for engagement with a stop block of an intermediate sliding rail of the sliding track assembly to secure the inner sliding rail to the intermediate sliding rail, a slide pivoted to the rear side of the control plate and coupled to the inner sliding rail by a slip joint for biasing the control plate to disengage the control plate from the stop block of the intermediate sliding rail for allowing removal of the inner sliding rail from the intermediately sliding rail, and a carriage affixed to the rear side of the slide and holding a spring member against a locating block at the inner sliding rail for pulling by the user to force the slide to bias the control plate.

Abstract: A hydraulic damper includes a cylinder holding a hydraulic fluid, a piston rod movable in and out of the cylinder, a rigid valve block coupled to the piston rod and having equiangularly spaced through holes, a piston coupled to the piston rod and having a plurality of axially extending through holes, a number of the through holes of the piston being respectively aimed at the through holes of the rigid valve block for allowing the hydraulic fluid to pass through the piston in one direction at a high speed during outward stroke of the piston rod and to pass through the piston in the other direction at a low speed during inward stroke of the piston and a plurality of spring strips for stopping against the rigid valve block, and a cushion block that buffers the impact of the rigid valve block when the piston rod is extended out of the cylinder.

Abstract: A hidden type sliding rail assembly auto locking structure for drawer is disclosed comprised of a holder base, a slide, a coil spring member, a hook, a steel spring strip, a locking block, and an actuating block. When the outer sliding rail is moved outwards with the drawer, the actuating block pushes the steel spring strip to force the hook against the slide and to further force the locking block into a side notch and stopped at a stop edge at the holder base to prevent disconnection of the locking block, for enabling the coil spring member to return the drawer to the close position. Except the coil spring member, the holder base holds the other parts on the inside and keeps them from sight without the use of a cover, thereby saving much installation labor and time.

Abstract: A sliding rail assembly auto opening mechanism for drawer is disclosed to include a holder block affixed to the outer rail of a sliding rail assembly and defining two longitudinal sliding slots, a sliding hook slidably mounted in the longitudinal sliding slots, a spring member connected between the holder block and the sliding hook, and a rocker, which is pivoted to a pivot in the holder block and has a front locating rod insertable through guide-in groove, sliding groove, retaining groove and guide-out groove at the holder block to automatically lock the sliding rail assembly when the sliding rail assembly is received with the drawer in the desk and to automatically unlock the sliding rail assembly when the drawer is pushed backwards from the locking position over a predetermined distance.

Abstract: A hidden type sliding rail assembly auto locking structure for drawer is disclosed comprised of a holder base, a slide, a coil spring member, a hook, a steel spring strip, a locking block, and an actuating block. When the outer sliding rail is moved outwards with the drawer, the actuating block pushes:the steel spring strip to force the hook against the slide and to further force the locking block into a side notch and stopped at a stop edge at the holder base to prevent disconnection of the locking block, for enabling the coil spring member to return the drawer to the close position. Except the coil spring member, the holder base holds the other parts on the inside and keeps them from sight without the use of a cover, thereby saving much installation labor and time.

Abstract: A sliding rail assembly auto locking structure for drawer is disclosed comprised of a holder base, a swivel hook, a slide, two return springs, an actuating block. When an arched block of the swivel hook is approaching a recess in the holder base for positioning, the arched block does not fall to the recess directly, and at this time, oblique guide grooves of the swivel hook are moved over associating guide blocks of the holder base to guide the arched block into the recess slowly and smoothly, and therefore the inner sliding rail of the sliding rail assembly is moved with the drawer smoothly without vibration.

Abstract: A inner sliding rail mounting structure is disclosed to include a control plate pivoted with a front side thereof to an inner sliding rail of a sliding track assembly for engagement with a stop block of an intermediate sliding rail of the sliding track assembly to secure the inner sliding rail to the intermediate sliding rail, a slide pivoted to the rear side of the control plate and coupled to the inner sliding rail by a slip joint for biasing the control plate to disengage the control plate from the stop block of the intermediate sliding rail for allowing removal of the inner sliding rail from the intermediately sliding rail, and a carriage affixed to the rear side of the slide and holding a spring member against a locating block at the inner sliding rail for pulling by the user to force the slide to bias the control plate.

Abstract: A sliding rail assembly auto locking structure includes a holder base affixed to the outer rail of a sliding rail assembly, the holder base having two longitudinal sliding slots and two locating holes respectively downwardly extended from the front end of the longitudinal sliding slots, a movable hook slidably mounted in the longitudinal sliding slots and biasable when the front guide rod thereof entered the locating holes, a spring member connected between the holder base and the movable hook, and a locating block affixed to the inner sliding rail of the sliding rail assembly and forced into engagement with the movable hook to turn the movable hook out of the locating holes and to move with the movable hook to the back side upon return stroke of the inner sliding rail with the drawer, the locating block forcing the movable hook into the locating holes and moving away from the movable hook upon forward stroke of the inner sliding rail with the drawer.

Abstract: A release control stop member injection-molded from plastics and affixed to a first sliding rail being inserted into a second sliding rail having a locating block for stopping the first sliding rail from falling out of the second sliding rail is disclosed to have a flat rear engagement block affixed to the first sliding rail, a locating notch at a front side of the flat rear engagement block for engagement with the locating block of the second sliding rail to stop the first sliding rail from falling out of the second sliding rail, an arched neck, and a front operating handle connected to the flat rear engagement block through the arched neck for pulling axially forwards with the hand to deform the arched neck and to further disengage the locating notch from the locating block for enabling the first sliding rail to be disconnected from the second sliding rail.

Abstract: A ball sleeve coupled between inner sliding rail and outer sliding rail of a hidden sliding track assembly is disclosed having four longitudinal rows of openings for accommodating balls, a narrow thin wall portion longitudinally extended on the middle between two distal ends of the top wall thereof through which the user can expand said sleeve body for easy installation of the balls in the openings and easy coupling of the ball sleeve to the inner sliding rail of a hidden sliding track assembly, and a plurality of recessed bearing portions respectively disposed at two sides of each of opening for supporting the balls in the openings.