CN213393160U

CN213393160U - Three-section heavy bidirectional synchronous sliding rail

Info

Publication number: CN213393160U
Application number: CN202021183415.4U
Authority: CN
Inventors: 吴俊松; 吴俊峰; 陆魏魏; 夏何平
Original assignee: Foshan Gefieca Metal Products Co ltd
Current assignee: Foshan Gefieca Metal Products Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-06-08
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a heavy two-way synchronous slide rail of three section, including outer rail, well rail, interior rail, outer rail, well rail and outer rail are from outer to interior sliding connection in proper order, still including being used for the drive simultaneously outer rail and the synchronous gliding lazytongs of well rail, lazytongs is including the cable that remains the tensioning throughout, the cable both ends simultaneously with interior rail fixed connection, the cable still walk around well rail both ends and pass or walk around set up in guide on the outer rail.

Description

Three-section heavy bidirectional synchronous sliding rail

Technical Field

The utility model relates to a slide rail technical field especially relates to a heavy two-way synchronous slide rail of three section.

Background

The existing slide rail generally adopts a one-way telescopic sliding mode, has certain limitation on the use range and mode of the slide rail, and has the main technical difficulty that the two-way sliding slide rail is difficult to realize two-way buffering. In addition, when the existing sliding rail is stretched and retracted, the inner rail usually extends to the maximum length and then slides in the middle rail, so that the inner rail slides more frequently and is abraded more seriously, and meanwhile, when the inner rail slides to the end of the stroke, the middle rail is in a static state at the moment, so that the impact of collision is large, and a buffer structure is needed to buffer the inner rail.

Disclosure of Invention

An object of the utility model is to overcome prior art not enough, provide a novel structure can realize the synchronous bidirectional scalability of slide rail, slow down ball partial wear and reduce the heavy bidirectional synchronization slide rail of three section that the tensile striking of slide rail prolongs its life.

In order to realize the above purpose, the utility model discloses the technical scheme who adopts is: the utility model provides a heavy two-way synchronous slide rail of three section, includes outer rail, well rail, interior rail, outer rail, well rail and outer rail are from outer to interior sliding connection in proper order, still including being used for the drive simultaneously outer rail and well synchronous gliding lazytongs of rail, lazytongs is including the cable that remains the tensioning throughout, the cable both ends simultaneously with interior rail fixed connection, the cable still walk around well rail both ends and pass or walk around set up in guide on the outer rail.

The utility model has the advantages that: the utility model discloses a heavy two-way synchronous slide rail of three section, its cable can drive the in-process that the inner rail slides flexible and slide of well rail syntropy to realize the synchronous flexible slip of inner rail and well rail. Compared with the prior art, the synchronous telescopic moving mode can averagely distribute the telescopic stroke of the synchronous telescopic moving mode to the inner rail or the middle rail, avoid the too frequent stretching frequency of the inner rail or the middle rail and is beneficial to reducing the local abrasion. In addition, because the inner rail and the middle rail slide synchronously, the impact generated when the inner rail and the middle rail slide to the end of the stroke can be buffered in a certain length, and the service life of the sliding rail is further prolonged.

Further, a first ball strip is arranged between the inner wall of the outer rail and the outer wall of the middle rail, and balls on the first ball strip are in rolling contact with the inner wall of the outer rail and the outer wall of the middle rail; and a second ball strip is arranged between the outer wall of the inner rail and the inner wall of the middle rail, and balls on the second ball strip are in rolling contact with the outer wall of the inner rail and the inner wall of the middle rail simultaneously. Sliding connection between outer rail and the well rail can be realized through first ball strip, and sliding connection between well rail and the interior rail can be realized through second ball strip.

Further, the lengths of the first ball strip and the second ball strip are both smaller than the length of the middle rail; the shaping of outer rail both ends has first stopper, well rail both ends shaping has second stopper and third stopper, the shaping of interior rail both ends has the fourth stopper, first stopper and second stopper are all spacing to first ball strip, and stagger each other between first stopper and the second stopper in order to dodge between outer rail and the well rail relative slip, third stopper and fourth stopper all are spacing to second ball strip, and stagger each other between third stopper and the fourth stopper in order to dodge between well rail and the interior rail relative slip. Utilize the first stopper of outer rail one end and cooperate the both ends of first ball strip with the second stopper of the well rail other end spacing conflict respectively to restrict the slip stroke between outer rail and the well rail, in addition because stagger each other between first stopper and the second stopper, consequently can not receive first stopper and second stopper directly spacing between well rail and the outer rail, thereby can realize the both-way slip between the two. Utilize the third stopper of well rail one end and the spacing cooperation of fourth of the inner rail other end to the both ends of second ball strip spacing conflict respectively to the slip stroke between restriction inner rail and the well rail, in addition because stagger each other between third stopper and the fourth stopper, consequently can not receive between well rail and the inner rail that third stopper and fourth stopper are direct spacing, thereby can realize the two-way slip between the two.

Further, the guide part is a pulley or a pin shaft which is wound by the inhaul cable.

Furthermore, the guide piece is provided with a through hole for the stay cable to pass through.

Drawings

Fig. 1 is a schematic perspective view of an accommodating state according to an embodiment.

Fig. 2 is an exploded perspective view of the first embodiment.

Fig. 3 is a front view of the first embodiment.

Fig. 4 is a partially enlarged view of the area a in fig. 2.

Fig. 5 is a partially enlarged view of a region B in fig. 2.

Fig. 6 is a partially enlarged view of a region C in fig. 2.

FIG. 7 is a side sectional view of the first embodiment.

Fig. 8 is a partially enlarged view of a region D in fig. 7.

Fig. 9 is a schematic perspective view of an extended state according to an embodiment.

Fig. 10 is a schematic structural view of the guide 42 and the cable 41 according to the second embodiment.

Fig. 11 is a schematic structural view of the guide 42 and the cable 41 according to the third embodiment.

The device comprises an outer rail 1, a first limiting block 11, a middle rail 2, a second limiting block 21, a third limiting block 22, an inner rail 3, a fourth limiting block 31, a pull rope 41, a guide part 42, a first ball strip 5 and a second ball strip 6.

Detailed Description

The claimed technical solution of the present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

Example one

Referring to fig. 1 to 9, the three-section heavy bidirectional synchronous sliding rail in the present embodiment includes an outer rail 1, a middle rail 2, an inner rail 3, a first ball strip 5, a second ball strip 6, and a synchronous mechanism for driving the outer rail 1 and the middle rail 2 to synchronously slide.

Outer rail 1, well rail 2 and outer rail 1 are from outer to interior sliding connection in proper order, specifically be provided with first ball strip 5 between the inner wall of outer rail 1 and the outer wall of well rail 2, ball on the first ball strip 5 simultaneously with the inner wall of outer rail 1 and the outer wall rolling contact of well rail 2, realize the sliding connection between outer rail 1 and well rail 2 through first ball strip 5. Be provided with second ball strip 6 between 3 outer walls of inner rail and the 2 inner walls of well rail, ball on the second ball strip 6 simultaneously with 3 outer walls of inner rail and the 2 inner walls rolling contact of well rail, realize the sliding connection between well rail 2 and the inner rail 3 through second ball strip 6. In the present embodiment, the lengths of the first ball strip 5 and the second ball strip 6 are both smaller than the length of the middle rail 2.

The outer rail 1 both ends shaping has

first stopper

11, 2 both ends shaping of well rail have second stopper 21 and

third stopper

22, 3 both ends shaping of interior rail has fourth stopper 31. The first limiting block 11 and the second limiting block 21 both limit the first ball strip 5, and the first limiting block 11 and the second limiting block 21 are staggered with each other to avoid relative sliding between the outer rail 1 and the middle rail 2. Utilize the first stopper 11 of outer rail 1 one end and cooperate respectively spacing conflict to the both ends of first ball strip 5 with the second stopper 21 of the 2 other ends of well rail to restrict the slip stroke between outer rail 1 and well rail 2, in addition because stagger each other between first stopper 11 and the second stopper 21, consequently can not receive first stopper 11 and second stopper 21 directly spacing between well rail 2 and the outer rail 1, thereby can realize the both-way slip between the two.

The third limiting block 22 and the fourth limiting block 31 both limit the second ball strip 6, and the third limiting block 22 and the fourth limiting block 31 are staggered with each other to avoid relative sliding between the middle rail 2 and the inner rail 3. Utilize the spacing cooperation of the fourth of the third stopper 22 of 2 one ends of well rail and the 3 other ends of interior rail to the both ends of second ball strip 6 spacing conflict respectively to the slip stroke between restriction interior rail 3 and well rail 2, in addition because stagger each other between third stopper 22 and the fourth stopper 31, consequently can not receive between well rail 2 and the interior rail 3 that third stopper 22 and fourth stopper 31 are direct spacing, thereby can realize the both-way slip between the two.

The synchronous mechanism comprises a stay cable 41 which is always kept tensioned, two ends of the stay cable 41 are fixedly connected with the inner rail 3, and the stay cable 41 also bypasses two ends of the middle rail 2 and passes through or bypasses a guide piece 42 arranged on the outer rail 1. In this embodiment, the guide 42 is a pin around which the cable 41 passes. The inhaul cable 41 can drive the middle rail 2 to slide in the same direction in the sliding and stretching process of the inner rail 3, so that the inner rail 3 and the middle rail 2 can synchronously stretch and slide.

Example two

Referring to fig. 10, the main difference between this embodiment and the first embodiment is that the guide 42 is a pulley around which the cable 41 passes.

EXAMPLE III

Referring to fig. 11, the main difference of this embodiment compared with the first embodiment is that the guide 42 has a through hole for the cable 41 to pass through.

The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention in any way. Those skilled in the art can make further changes and modifications to the invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention. Therefore, the content of the technical scheme of the utility model, according to the equivalent change made by the idea of the utility model, should be covered in the protection scope of the utility model.

Claims

1. The utility model provides a heavy two-way synchronous slide rail of three section which characterized in that: including outer rail (1), well rail (2), interior rail (3), outer rail (1), well rail (2) and outer rail (1) are from outer to interior sliding connection in proper order, still including being used for the drive simultaneously outer rail (1) and well rail (2) synchronous sliding's lazytongs, lazytongs is including cable (41) that remain the tensioning all the time, cable (41) both ends simultaneously with interior rail (3) fixed connection, cable (41) still walk around well rail (2) both ends and pass or bypass set up in guide (42) on outer rail (1).

2. The three-section heavy bidirectional synchronous slide rail according to claim 1, characterized in that: a first ball strip (5) is arranged between the inner wall of the outer rail (1) and the outer wall of the middle rail (2), and balls on the first ball strip (5) are in rolling contact with the inner wall of the outer rail (1) and the outer wall of the middle rail (2) at the same time; be provided with second ball strip (6) between inner rail (3) outer wall and well rail (2) inner wall, ball on second ball strip (6) simultaneously with inner rail (3) outer wall and well rail (2) inner wall rolling contact.

3. The three-section heavy bidirectional synchronous slide rail according to claim 2, characterized in that: the lengths of the first ball strip (5) and the second ball strip (6) are both smaller than the length of the middle rail (2); outer rail (1) both ends shaping has first stopper (11), well rail (2) both ends shaping has second stopper (21) and third stopper (22), interior rail (3) both ends shaping has fourth stopper (31), first stopper (11) and second stopper (21) are all spacing to first ball strip (5), and stagger each other between first stopper (11) and second stopper (21) in order to dodge relative slip between outer rail (1) and well rail (2), third stopper (22) and fourth stopper (31) are all spacing to second ball strip (6), and stagger each other between third stopper (22) and fourth stopper (31) in order to dodge relative slip between well rail (2) and interior rail (3).

4. The three-section heavy bidirectional synchronous slide rail according to claim 1, characterized in that: the guide piece (42) is a pulley or a pin shaft wound by the inhaul cable (41).

5. The three-section heavy bidirectional synchronous slide rail according to claim 1, characterized in that: the guide piece (42) is provided with a through hole for the stay cable (41) to pass through.