Three-section synchronous slide rail

A three-section synchronous slide rail, which has simple structure, longer service life, is easy to install and replace is provided, which includes: two sets of slide rail assemblies which comprise a fixed rail, a middle rail and a sliding rail, synchronization components comprising a flexible deflector unit and a roller, the flexible deflector unit is connected with the fixed rail and the sliding rail, the middle rail is connected with a rope base, a first end of the flexible deflector unit is wound around a first end of the rope base and fixed to the rope base, and a second end of the flexible deflector unit bypasses the roller and is reversely wound on a second end of the rope base and the second end of the flexible deflector unit is fixed to the rope base, a connecting rod is connected between the rope bases.

BACKGROUND OF THE PRESENT INVENTION

Field of Invention

The invention relates to the technical field of slide rails, and more particular to a three-section synchronous slide rail.

Description of Related Arts

The conventional synchronous slide rail intelligently ensures that the slide rail is synchronized when the slide rail is in use, and cannot simultaneously ensure the synchronization of the middle rail during the movement.

At present, slide rail devices that can synchronize the synchronous movement of the intermediate slide rail have been disclosed in the field, such as a patent application with a publication number of CN105407760A, which discloses a pull-out system that can realize the synchronous movement of the middle slide rail and the movable rail; wherein at least one flexible deflection element11is fixed to the holder12and the holder14at the connection point13and the connection point15; and the flexible deflection element11surrounds the deflection roller16provided on the middle rail3in the front area, wherein the deflection is approximately 180°; and the flexible deflection element11between the running track2, the intermediate track3and the stationary track4can be used for sequential control to ensure that the running track2moves two times as fast as the intermediate track3and prevents slides between the tracks. Meanwhile the two pull-out guides1are connected to each other in the rear area after passing the flexible deflection element11, so that the flexible deflection element11and the two middle rails3move together in the rear area, i.e., moving the running rails2synchronously on the two sides are realized. However, the structure is complicated, and the length of the flexible deflection element needs to be strictly matched with the length of the slide rail and the distance between the slide rails. In actual use, the two slide rails are connected by the flexible deflection element and deflected by the flexible synchronization of the components will aggravate the wear of the flexible deflection element. It is difficult to replace the flexible deflection element, and after the installation is completed, there will be a deviation between the actual size and the theoretical size of the two slide rails. At this time, the flexible deflection element needs to be adjusted to keep it straining is more difficult.

SUMMARY OF THE PRESENT INVENTION

Technical Problem

In view of the complex structure of the conventional synchronous slide rail and the easy wear of the flexible deflection element, the present invention provides a three-section synchronous slide rail, which has a simple structure, is easy to install and replace, and has a longer service life.

Solutions to the Problem

Technical Solutions

The technical solution is as follows. A three-section synchronous slide rail, comprises: two sets of slide rail assemblies, wherein the two sets of the slide rail assemblies are respectively installed with synchronization components, the slide rail assemblies respectively comprise a fixed rail, a middle rail and a sliding rail, the synchronization components respectively comprise a flexible deflector unit and a roller provided on the middle rail, the flexible deflector unit is respectively connected with the fixed rail and the sliding rail, wherein the middle rail is further connected with a rope base, the rope base is capable of rotating on the middle rail, a first end of the flexible deflector unit is wound around a first end of the rope base and then fixed to the rope base, and a second end of the flexible deflector unit bypasses the roller, then is reversely wound on a second end of the rope base and fixed to the rope base, and a connecting rod is connected between the rope bases of the two sets of the slide rail assemblies.

Further characteristics of the present invention are as follows. A first connector is fixedly connected with the sliding rail, a second connector is fixedly connected with the fixed rail, and the first connector and the second connector are respectively configured to connect the flexible deflector unit. A spiral groove is provided on the rope base, and the flexible deflector unit is wound on the rope base along a rotation path of the spiral groove. The flexible deflector unit comprises a first flexible deflector, a second flexible deflector, and a third flexible deflector;

wherein a first end of the first flexible deflector is fixed and wound on the rope base, and a second end of the first flexible deflector is connected to a first end of the third flexible deflector via the first connector, and a second end of the third flexible deflector is connected to a first end of the second flexible deflector through the second connector after bypassing the roller; a second end of the second flexible deflector is wound and connected on the rope base.

Fixed grooves are provided on the openings of both ends of the spiral groove, fixed grooves are respectively provided on a middle portion of the first connector and the second connector, and the fixed grooves of the first connector and the second connector extend on both sides to form slots matching with a size of the flexible deflector unit; a first end of the first flexible deflector is installed in a first fixing groove on the rope base through a fixing block; a second end of the first flexible deflector and a first end of the third flexible deflector are installed in the fixing groove on the first connector through a fixing block; and a second end of the third flexible deflector and a first end of the second flexible deflector are installed in the fixing groove of the second connector through fixing block, and a second end of the second flexible deflector is installed in a second fixing groove of the rope base through the fixing block. The rope base is sheathed with a socket, the socket wraps the rope base, an opening for the flexible deflector is provided on the socket; a first hook-shaped connector is provided on a side where the socket contacts the middle rail; the first hook-shaped connector is clamped with a hole on the middle rail; a connecting protrusion is provided on a side where socket contacts the rope base; wherein protrusions are provided on the connecting protrusion, which are used for clamping with the second hook-shape connector in the groove on a side of the rope base. A front end of the first hook-shaped connector is provided with a thin front and a thick inclined surface, a rear end of the inclined surface is provided with a first clamping groove, and a through groove is opened in the middle of the first hook-shaped connector; front thick and rear thin inclined surfaces are provided on the protrusion, the front end of the protrusion is provided with a second clamping groove, and the front end of the second hook-shaped connector is provided with an inclined surface for matching the protrusion.

The Beneficial Effects of the Invention

Beneficial Effect

After adopting such a structure, the rope bases on both sides are rotated synchronously through the connecting rods fixedly connected to the rope base, and then the sliding rail and the middle rail are kept in synchronous movements through the function of the flexible deflector; The flexible deflector, the rope base and the connecting rod is capable of realizing the synchronous movement of the two sets of slide rails. The structure of the present invention is simple, and the installation and production are convenient; and because the flexible deflection member is wound and connected to the rope base, and then the two sets of slide rails are connected by the connecting rod, the rail assembly can be replaced separately during replacement, which is more convenient. Meanwhile, the connecting rod is used as the component connecting the two sets of slide rail assemblies, which is less prone to wear and has a longer service life.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The three-section synchronous slide rail shown inFIG.1andFIG.2, a three-section synchronous slide rail, comprising: two sets of slide rail assemblies1aand1b, wherein the two sets of the slide rail assemblies1aand1bare respectively installed with synchronization components, the slide rail assemblies1aand1brespectively comprise a fixed rail2, a middle rail3and a sliding rail4, the synchronization components respectively comprise a flexible deflector unit6and a roller5provided on the middle rail, wherein the flexible deflector unit6is respectively connected with the fixed rail2and the sliding rail4, wherein the middle rail3is further connected with a rope base7, the rope base7is capable of rotating on the middle rail3, a first end of the flexible deflector unit6is wound around a first end of the rope base7and then fixed to the rope base7, and a second end of the flexible deflector unit6bypasses the roller5, then is reversely wound on a second end of the rope base7and fixed to the rope base7, and a connecting rod8is connected between the rope bases7of the two sets of the slide rail assemblies1aand1b.

As shown inFIG.3,FIG.4, andFIG.8, a first connector9-1is fixedly connected to the sliding rail4, a second connector9-2is fixedly connected to the fixed rail2, and the first connector9-1and the second connector9-2are respectively configured to connect the first flexible deflection member6-1and the second flexible deflection member6-2which are connected with the rope base7, and the third flexible deflection member6-3is in contact with the roller5and further connected with the first connector9-1and the second connector9-2. Specifically, a first end of the first flexible deflecting piece6-1is fixed and wound on the rope base7, and a second end of the first flexible deflection piece6-1is connected to one end of the third flexible deflection member6-3via the first connector9-1, and a second end of the third flexible deflection member6-3passes by the roller5to connect the second flexible deflection member6-2via the second connection member9-2. A second end of the second flexible deflection member6-2is wound and fixedly connected to the rope base7. All ends of the first flexible deflection member6-1, the second flexible deflection member6-2, and the third flexible deflection member6-3are connected with fixing blocks10, Of course, there may be one, two or even more than three flexible deflection members6, and they may not be connected by connecting members, as long as the flexible deflection member6can be fixed to the sliding rail4and the fixed rail2in other ways.

Further, as shown inFIGS.5,6, and7, the rope base7is cylindrical and the rope base7is provided with a spiral groove12, and the flexible deflection member6is wound around the rope base7according to the rotation path of the spiral groove12; wherein a length of the flexible deflection member6wounded on the rope base7is greater than or equal to a length of the flexible deflection member6pulled out of the rope base7, that is, when the flexible deflection member6is fully pulled out, its pulled-out section can no longer be wound around the rope base7and only connected to the rope base7, and there may also be a part of the flexible deflection member6wounded on the rope base7. Specifically, the outlets12aand12bat the two ends of the spiral groove12are provided with fixed grooves11, fixing grooves11are respectively provided on both middle portions of first connector9-1and the second connector9-2; and two sides of the fixing grooves11of the first connector9-1and the second connector9-2extend to form grooves11-1matching with the size of the flexible deflection piece6. A first end of the first flexible deflector6-1is installed in a first fixing groove12aon the rope base7through a fixing block10; a second end of the first flexible deflector6-1and a first end of the third flexible deflector6-3are installed in the fixing groove11on the first connector9-1through a fixing block; and a second end of the third flexible deflector6-3and a first end of the second flexible deflector6-2are installed in the fixing groove11of the second connector9-2through fixing block and a second end of the second flexible deflector6-2is installed in a second fixing groove12bof the rope base7through the fixing block10.

The flexible deflector is specifically a rope. The protrusion10is inserted into the fixing groove11by pulling the flexible deflection member6. At this time, the flexible deflection member6shrinks, and the flexible deflection member6is always in a tensioned state by the pulling force of the rope. Not only is the flexible deflection element6easy to install, but the flexible deflection element6can be tensioned through a simple structure, and that in the actual installation process, a deviation of an actual distance and a theoretical distance between the two slide rail assemblies1a,1bwon't affect the tightness of the flexible deflector6and does not need to be adjusted. In addition, the connecting rod8is clamped with the rope base7. Specifically, as shown inFIGS.7and10, the connection7-3on the rope base7protrudes and has connecting hole7-4. The connecting hole7-4is flat and matches with the shape of the connecting end8-1of the connecting rod8. The connecting end8-1of the connecting rod8extends into the connecting hole7-4, so as to be clamped with the rope base7, so that the actual distance between the two slide rail assemblies1a,1bcan be adjusted to adjust the distance between the connecting end8-1of the connecting rod8inserting in a connection portion7-3of the rope base7to make axial adjustment. At the same time, rope base7drives the connecting rod8to rotate in a circumferential direction can be ensured as well.

As shown inFIG.2,FIG.4,FIG.6andFIG.9, the rope base7is covered with a socket13, the socket13wraps the rope base7, and the socket13is provided with a flexible deflector inlet14to prevent the wear of foreign objects, it can play the role of guiding and protecting the rope base7and the flexible deflection member6. Specifically, the contact side of the socket13and the intermediate rail3is provided with a first hook-shaped connecting member13-1. The connector13-1is clamped with the hole on the middle rail3; the contact side of the socket13and the rope base7is provided with a connecting protrusion13-2, and the connecting protrusion13-2is provided with a protrusion13-3which is configured to clamp with the second hook-shaped connector7-1in the groove on the side of the rope base7.

Further, the front end of the first hook-shaped connector13-1is provided with an inclined surface with a thin front and a thick rear surface, and the rear end of the inclined surface is provided with a first clamping groove13-11, and through slots13-12are provided on a middle portion of the first hook-shaped connector13-1, so that the first hook-shaped connector13-1can be easily inserted into the hole on the middle rail3, and when it needs to be disassembled, press the upper and lower ends of the first hook-shaped connector13-1, it can be separated from the middle rail3, which is easy to install and disassemble; the protrusion13-3is provided with a front thick and a rear thin slope, and the front end of the protrusion13-3is provided with a second clamping groove13-21, the front end of the a second hook shaped connector7-1is provided with an inclined surface that matches with the protrusion13-3, and the rear end of the inclined surface is a clamping groove, which is matched through the inclined surface of the second hook-shaped connector7-1and the inclined surface on the protrusion13-3during installation; the second hook-shaped connector7-1can be pressed into the second clamping groove13-21to complete the installation of the socket13and the rope base7, which is very convenient.

In addition, a positioning rod7-2is provided in the middle of the rope base7with a positioning block in the middle of the socket13, which is convenient for positioning during installation.

After adopting such a structure, when opened, most of the first flexible deflection member6-1wound on the rope base7is pulled out by the pulling force of the first connecting member9-1, and the rope base7rotate to receive the second flexible deflector6-2into the spiral groove12; when closed, the first connector9-1pulls the third flexible deflector6-3, and the third flexible deflector6-3pulls the second connector9-2to pull out the second flexible deflector6-2which is mostly wounded on the rope base7, and the rope base7rotates to receive the first flexible deflector6-1into the spiral groove12at the same time. The connecting rod8fixedly connected to the rope base7keeps the rope bases7on both sides rotating synchronously, and the sliding rail and the intermediate rail are kept in synchronous movement through the function of the flexible deflector6to realize the fixed rail2, the intermediate rail3and the sliding rail4on the two sets of sliding rail assemblies1aand1ball move synchronously; because only the flexible deflector6, the rope base7and the connecting rod8are needed to realize the synchronous movement of the two sets of sliding rails1aand1b, the structure is simple, and the installation, production, and replacement are convenient; and because the flexible deflection member6is wound and connected to the rope base7and then connected to the two sets of slide rail assemblies through the connecting rod8, the flexible deflection member6or the connecting rod8can be replaced separately during replacement, It is more convenient, and the connecting rod8is used as the component connecting the two sets of slide rail assemblies1a,1b, which is less prone to wear and has a longer life.