BUFFER SLIDE RAIL WITH DYNAMIC FRICTION SILENCING MECHANISM

Abstract

The present invention provides a buffer slide rail with a dynamic friction silencing mechanism, comprising an upper rail, a middle rail and a lower rail which are in sliding connection in sequence, a dynamic friction silencing assembly for reducing an axial moving speed is arranged between the connection of the upper rail and the middle rail, the dynamic friction silencing assembly including a rolling connecting block which comes into contact with the abrasion-resistant connecting block as the upper rail axially moves and is in rolling connection with the abrasion-resistant connecting block. The structure increases a coefficient of dynamic friction between the upper rail and the middle rail, reduce an axial moving speed of the upper rail, achieve a silencing effect, as well as ensure that the upper rail and the middle rail are opened or closed on the lower rail in sequence, improve the transmission stability of the slide rail.

Claims

1. A buffer slide rail with a dynamic friction silencing mechanism, comprising an upper rail (1), a middle rail (2) and a lower rail (3) which are in sliding connection in sequence, wherein a transmission lower bead nest in transmission connection with the middle rail (2) is assembled on the lower rail (3), and a transmission upper bead nest in transmission connection with the upper rail (1) is assembled on the middle rail (2), characterized in that a dynamic friction silencing assembly for reducing an axial moving speed is arranged between the connection of the upper rail (1) and the middle rail (2), the dynamic friction silencing assembly including an abrasion-resistant connecting block (6) and a rolling connecting block (7), wherein the rolling connecting block (7) comes into contact with the abrasion-resistant connecting block (6) as the upper rail (1) axially moves and is in rolling connection with the abrasion-resistant connecting block (6).

2. The buffer slide rail with a dynamic friction silencing mechanism according to claim 1, characterized in that the abrasion-resistant connecting block (6) is located between the connection of the transmission upper bead nest and is fixedly assembled on a bottom surface of the upper rail (1), a mounting base (8) in shaft connection with the rolling connecting block (7) is assembled on an upper surface of the middle rail (2), and the rolling connecting block (7) comes into soft contact with the abrasion-resistant connecting block (6) as the upper rail (1) axially moves and is in rolling connection with the abrasion-resistant connecting block (6) under the action of dynamic friction of the abrasion-resistant connecting block (6).

3. The buffer slide rail with a dynamic friction silencing mechanism according to claim 1, characterized in that the abrasion-resistant connecting block (6) is located between the sliding connection of the transmission upper bead nest and is assembled on an upper surface of the middle rail (2), a mounting base (8) in shaft connection with the rolling connecting block (7) is assembled on a bottom surface of the upper rail (1), and the rolling connecting block (7) comes into soft contact with the abrasion-resistant connecting block (6) as the upper rail (1) axially moves and is in rolling connection with the abrasion-resistant connecting block (6) under the action of dynamic friction of the abrasion-resistant connecting block (6).

4. The buffer slide rail with a dynamic friction silencing mechanism according to claim 1, characterized in that the abrasion-resistant connecting block (6) is located between the sliding connection of the transmission upper bead nest and is assembled on a left inner side surface or right inner side surface of the upper rail (1), a mounting base (8) in shaft connection with the rolling connecting block (7) is assembled in the middle rail (2), and the rolling connecting block (7) comes into soft contact with the abrasion-resistant connecting block (6) as the upper rail (1) axially moves and is in rolling connection with the abrasion-resistant connecting block (6) under the action of dynamic friction of the abrasion-resistant connecting block (6).

5. The buffer slide rail with a dynamic friction silencing mechanism according to claim 1, characterized in that the abrasion-resistant connecting block (6) is provided with a plurality of arc slots (9), the plurality of arc slots (9) being distributed on the abrasion-resistant connecting block (6), and arc bumps (10) which are in rolling connection with the arc slots (9) as the upper rail (1) moves are provided at an outer edge of the rolling connecting block (7).

6. The buffer slide rail with a dynamic friction silencing mechanism according to claim 5, characterized in that the plurality of arc slots (9) are distributed on a plane at one side of the abrasion-resistant connecting block (6) at equal interval, so that the plane at one side of the abrasion-resistant connecting block (6) has a wavy connecting plane.

7. The buffer slide rail with a dynamic friction silencing mechanism according to claim 6, characterized in that the abrasion-resistant connecting block (6) is at least one plate-shaped soft abrasion-resistant sheet.

8. The buffer slide rail with a dynamic friction silencing mechanism according to claim 5, characterized in that the arc bumps (10) are distributed at the outer edge of the rolling connecting block (7) at equal radian by taking the center of the rolling connecting block (7) as a fixed point, so that the rolling connecting block (7) is a petaloid rolling block used for rolling connection with the arc slots (9).

9. The buffer slide rail with a dynamic friction silencing mechanism according to claim 2, characterized in that the abrasion-resistant connecting block (6) is provided with a plurality of arc slots (9), the plurality of arc slots (9) being distributed on the abrasion-resistant connecting block (6), and arc bumps (10) which are in rolling connection with the arc slots (9) as the upper rail (1) moves are provided at an outer edge of the rolling connecting block (7).

10. The buffer slide rail with a dynamic friction silencing mechanism according to claim 9, characterized in that the plurality of arc slots (9) are distributed on a plane at one side of the abrasion-resistant connecting block (6) at equal interval, so that the plane at one side of the abrasion-resistant connecting block (6) has a wavy connecting plane.

11. The buffer slide rail with a dynamic friction silencing mechanism according to claim 10, characterized in that the abrasion-resistant connecting block (6) is at least one plate-shaped soft abrasion-resistant sheet.

12. The buffer slide rail with a dynamic friction silencing mechanism according to claim 9, characterized in that the arc bumps (10) are distributed at the outer edge of the rolling connecting block (7) at equal radian by taking the center of the rolling connecting block (7) as a fixed point, so that the rolling connecting block (7) is a petaloid rolling block used for rolling connection with the arc slots (9).

13. The buffer slide rail with a dynamic friction silencing mechanism according to claim 3, characterized in that the abrasion-resistant connecting block (6) is provided with a plurality of arc slots (9), the plurality of arc slots (9) being distributed on the abrasion-resistant connecting block (6), and arc bumps (10) which are in rolling connection with the arc slots (9) as the upper rail (1) moves are provided at an outer edge of the rolling connecting block (7).

14. The buffer slide rail with a dynamic friction silencing mechanism according to claim 13, characterized in that the plurality of arc slots (9) are distributed on a plane at one side of the abrasion-resistant connecting block (6) at equal interval, so that the plane at one side of the abrasion-resistant connecting block (6) has a wavy connecting plane.

15. The buffer slide rail with a dynamic friction silencing mechanism according to claim 14, characterized in that the abrasion-resistant connecting block (6) is at least one plate-shaped soft abrasion-resistant sheet.

16. The buffer slide rail with a dynamic friction silencing mechanism according to claim 13, characterized in that the arc bumps (10) are distributed at the outer edge of the rolling connecting block (7) at equal radian by taking the center of the rolling connecting block (7) as a fixed point, so that the rolling connecting block (7) is a petaloid rolling block used for rolling connection with the arc slots (9).

17. The buffer slide rail with a dynamic friction silencing mechanism according to claim 4, characterized in that the abrasion-resistant connecting block (6) is provided with a plurality of arc slots (9), the plurality of arc slots (9) being distributed on the abrasion-resistant connecting block (6), and arc bumps (10) which are in rolling connection with the arc slots (9) as the upper rail (1) moves are provided at an outer edge of the rolling connecting block (7).

18. The buffer slide rail with a dynamic friction silencing mechanism according to claim 17, characterized in that the plurality of arc slots (9) are distributed on a plane at one side of the abrasion-resistant connecting block (6) at equal interval, so that the plane at one side of the abrasion-resistant connecting block (6) has a wavy connecting plane.

19. The buffer slide rail with a dynamic friction silencing mechanism according to claim 18, characterized in that the abrasion-resistant connecting block (6) is at least one plate-shaped soft abrasion-resistant sheet.

20. The buffer slide rail with a dynamic friction silencing mechanism according to claim 17, characterized in that the arc bumps (10) are distributed at the outer edge of the rolling connecting block (7) at equal radian by taking the center of the rolling connecting block (7) as a fixed point, so that the rolling connecting block (7) is a petaloid rolling block used for rolling connection with the arc slots (9).

21. The buffer slide rail with a dynamic friction silencing mechanism according to claim 2, characterized in that a shaft hole (11) is formed in the center of the rolling connecting block (7), and a locating shaft (12) in shaft connection with the mounting base (8) is installed in the shaft hole (11).

22. The buffer slide rail with a dynamic friction silencing mechanism according to claim 13, characterized in that outer side surfaces of the rolling connecting block (7) are separately provided with limit concave holes (4) for increasing coefficients of dynamic friction, and the mounting base (8) is provided with limit bumps (5) slidably engaged or disengaged from the limit concave holes (4).

23. The buffer slide rail with a dynamic friction silencing mechanism according to claim 3, characterized in that a shaft hole (11) is formed in the center of the rolling connecting block (7), and a locating shaft (12) in shaft connection with the mounting base (8) is installed in the shaft hole (11).

24. The buffer slide rail with a dynamic friction silencing mechanism according to claim 23, characterized in that outer side surfaces of the rolling connecting block (7) are separately provided with limit concave holes (4) for increasing coefficients of dynamic friction, and the mounting base (8) is provided with limit bumps (5) slidably engaged or disengaged from the limit concave holes (4).

25. The buffer slide rail with a dynamic friction silencing mechanism according to claim 4, characterized in that a shaft hole (11) is formed in the center of the rolling connecting block (7), and a locating shaft (12) in shaft connection with the mounting base (8) is installed in the shaft hole (11).

26. The buffer slide rail with a dynamic friction silencing mechanism according to claim 25, characterized in that outer side surfaces of the rolling connecting block (7) are separately provided with limit concave holes (4) for increasing coefficients of dynamic friction, and the mounting base (8) is provided with limit bumps (5) slidably engaged or disengaged from the limit concave holes (4).

Description

BRIEF DESCRIPTION OF DRAWINGS

Description of Drawings

[0018] FIG. 1 is a structural schematic diagram of embodiment 1 of the present invention.

[0019] FIG. 2 is a sectional view of embodiment 1 of the present invention.

[0020] FIG. 3 is a partial enlarged view of FIG. 2 in embodiment 1 of the present invention.

[0021] FIG. 4 is an installation diagram of the rolling connecting block, the abrasion-resistant connecting block and the mounting base in embodiment 1 of the present invention.

[0022] FIG. 5 is an exploded view of the rolling connecting block, the abrasion-resistant connecting block and the mounting base in embodiment 1 of the present invention.

[0023] FIG. 6 is a sectional view of embodiment 2 of the present invention.

[0024] FIG. 7 is a partial enlarged view of FIG. 6 in embodiment 2 of the present invention.

[0025] FIG. 8 is a sectional view of embodiment 3 of the present invention.

[0026] FIG. 9 is a partial enlarged view of FIG. 8 in embodiment 3 of the present invention.

OPTIMAL EMBODIMENTS FOR IMPLEMENTING INVENTION

Best Mode

[0027] The present invention will be further described as below with reference to the drawings.

[0028] As shown in FIG. 1-FIG. 9, a buffer slide rail with a dynamic friction silencing mechanism of the present invention, comprising an upper rail 1, a middle rail 2 and a lower rail 3 which are in sliding connection in sequence, wherein a transmission lower bead nest in transmission connection with the middle rail 2 is assembled on the lower rail 3, and a transmission upper bead nest in transmission connection with the upper rail 1 is assembled on the middle rail 2, wherein a dynamic friction silencing assembly for reducing an axial moving speed is arranged between the connection of the upper rail 1 and the middle rail 2. The dynamic friction silencing assembly includes an abrasion-resistant connecting block 6 and a rolling connecting block 7, wherein the rolling connecting block 7 comes into contact with the abrasion-resistant connecting block 6 as the upper rail 1 axially moves and is in rolling connection with the abrasion-resistant connecting block 6.

[0029] As shown in FIG. 1-FIG. 5, the abrasion-resistant connecting block 6 is located between the connection of the transmission upper bead nest and is fixedly assembled on a bottom surface of the upper rail 1, a mounting base 8 in shaft connection with the rolling connecting block 7 is assembled on an upper surface of the middle rail 2, and the rolling connecting block 7 comes into soft contact with the abrasion-resistant connecting block 6 as the upper rail 1 axially moves and is in rolling connection with the abrasion-resistant connecting block 6 under the action of dynamic friction of the abrasion-resistant connecting block 6.

[0030] That is, during the opening or closing of the slide rail, the abrasion-resistant connecting block 6 comes into contact with the rolling connecting block 7 as the upper rail 1 axially moves. Meanwhile, driven by the abrasion-resistant connecting block 6, the rolling connecting block 7 rolls on the mounting base 8 and moves relatively along the abrasion-resistant connecting block 6, to generate dynamic friction resistance between the upper rail 1 and the middle rail 2, reduce an axial moving speed of the upper rail 1 effectively, achieve a silencing effect, as well as ensure that the upper rail 1 and the middle rail 2 are opened or closed on the lower rail 3 in sequence, improve the transmission stability of the slide rail, and guarantee the normal use of a drawer.

[0031] Wherein, the abrasion-resistant connecting block 6 is provided with a plurality of arc slots 9, the plurality of arc slots 9 being distributed on the abrasion-resistant connecting block 6, and arc bumps 10 which are in rolling connection with the arc slots 9 as the upper rail 1 moves are provided at an outer edge of the rolling connecting block 7. In practical application, the abrasion-resistant connecting block 6 is at least one plate-shaped soft abrasion-resistant sheet. Moreover, the plurality of arc slots 9 are distributed on a plane at one side of the abrasion-resistant connecting block 6 at equal interval, so that the plane at one side of the abrasion-resistant connecting block 6 has a wavy connecting plane. The arc bumps 10 are distributed at the outer edge of the rolling connecting block 7 at equal radian by taking the center of the rolling connecting block 7 as a fixed point, so that the rolling connecting block 7 is a petaloid rolling block used for rolling connection with the arc slots 9.

[0032] In this way, by means of the soft contact and rolling connection between the abrasion-resistant connecting block 6 with a wavy connecting plane and the petaloid rolling block, the dynamic friction area is enlarged, to increase a coefficient of dynamic friction between the upper rail 1 and the middle rail 2, reduce an axial moving speed, achieve a silencing effect, as well as ensure that the upper rail 1 and the middle rail 2 are opened or closed on the lower rail 3 in sequence, improve the transmission stability of the slide rail, and guarantee the normal use of a drawer.

[0033] In addition, a shaft hole 11 is formed in the center of the rolling connecting block 7, and a locating shaft 12 in shaft connection with the mounting base 8 is installed in the shaft hole 11. The smoothness and stability of operation are effectively improved, and the quality in use of the slide rail is guaranteed.

[0034] As shown in FIG. 1-FIG. 5, outer side surfaces of the rolling connecting block 7 are separately provided with limit concave holes 4 for increasing coefficients of dynamic friction, and the mounting base 8 is provided with limit bumps 5 slidably engaged or disengaged from the limit concave holes 4.

[0035] During opening or closing of the slide rail, as the upper rail 1 moves, the rolling connecting block 7 rolls on the mounting base 8 under the action of dynamic friction resistance, and the limit concave holes 4 are slidably engaged with the limit bumps 5 as the rolling connecting block 7 rolls. Then, under the pull of sufficient external force, the limit holes 4 are disengaged from the limit bumps 5, so that the slide rail is continuously opened or closed, to increase dynamic friction force, as well as ensure that the upper rail 1 and the middle rail 2 are opened or closed on the lower rail 3 in sequence, improve the transmission stability of the slide rail, and guarantee the normal use of a drawer.

[0036] As shown in FIG. 6-FIG. 7, embodiment 2 is different from the above-mentioned embodiment in that: the abrasion-resistant connecting block 6 is located between the sliding connection of the transmission upper bead nest and is assembled on an upper surface of the middle rail 2, a mounting base 8 in shaft connection with the rolling connecting block 7 is assembled on a bottom surface of the upper rail 1, and the rolling connecting block 7 comes into soft contact with the abrasion-resistant connecting block 6 as the upper rail 1 axially moves and is in rolling connection with the abrasion-resistant connecting block 6 under the action of dynamic friction of the abrasion-resistant connecting block 6.

[0037] During the opening or closing of the slide rail, the rolling connecting block 7 comes into soft contact with the abrasion-resistant connecting block 6 as the upper rail 1 axially moves. Meanwhile, the rolling connecting block 7 rolls on the mounting base 8 and moves relatively along the abrasion-resistant connecting block 6, to generate dynamic friction resistance between the upper rail 1 and the middle rail 2, reduce an axial moving speed of the upper rail 1 effectively, achieve a silencing effect, as well as ensure that the upper rail 1 and the middle rail 2 are opened or closed on the lower rail 3 in sequence, improve the transmission stability of the slide rail, and guarantee the normal use of a drawer.

[0038] As shown in FIG. 8-FIG. 9, embodiment 3 is different from the above-mentioned embodiment in that: the abrasion-resistant connecting block 6 is located between the sliding connection of the transmission upper bead nest and is assembled on a left inner side surface or right inner side surface of the upper rail 1, a mounting base 8 in shaft connection with the rolling connecting block 7 is assembled in the middle rail 2, and the rolling connecting block 7 comes into soft contact with the abrasion-resistant connecting block 6 as the upper rail 1 axially moves and is in rolling connection with the abrasion-resistant connecting block 6 under the action of dynamic friction of the abrasion-resistant connecting block 6.

[0039] During the opening or closing of the slide rail, the abrasion-resistant connecting block 6 comes into soft contact with the rolling connecting block 7 as the upper rail 1 axially moves. Meanwhile, driven by the abrasion-resistant connecting block 6, the rolling connecting block 7 rolls on the mounting base 8 and moves relatively along the abrasion-resistant connecting block 6, to generate dynamic friction resistance between the upper rail 1 and the middle rail 2, reduce the axial moving speed of the upper rail 1 effectively, achieve a silencing effect, as well as ensure that the upper rail 1 and the middle rail 2 are opened or closed on the lower rail 3 in sequence, improve the transmission stability of the slide rail, and guarantee the normal use of a drawer.

[0040] It is worth noting that optionally, the abrasion-resistant connecting block 6 may be an abrasion-resistant block made of nonmetal abrasion-resistant material, such as abrasion-resistant plastic block, abrasion-resistant silicone block or the like, and optionally, the rolling connecting block 7 may be a rolling block made of metal material or a rolling block made of nonmetal material, such as iron rolling block, steel rolling block, colloid rolling block or the like.

[0041] The above specific embodiments are specific embodiments with good effects of the present invention. Any structure identical or similar to that of the buffer slide rail with a dynamic friction silencing mechanism of present invention shall be covered in the protection scope of the present invention.