CN217682842U

CN217682842U - Heavy-duty slide rail assembly

Info

Publication number: CN217682842U
Application number: CN202222087322.7U
Authority: CN
Inventors: 章文帮; 陆波; 梁志发; 司彤
Original assignee: Wuxi Jingmei Precise Slide Co ltd
Current assignee: Wuxi Jingmei Precise Slide Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-10-28
Anticipated expiration: 2032-08-09

Abstract

The utility model relates to a heavy-duty type sliding rail set spare, including last rail, well rail, lower rail, between last rail and the well rail respectively slidable between well rail and the lower rail sets up the roller train, the roller train includes the holder, rotatably set up the gyro wheel on the holder, when sliding rail set spare removes the gyro wheel upper and lower surface respectively with last rail internal surface, well rail surface contact to and with well rail internal surface, lower rail surface contact, the gyro wheel includes the metal gyro wheel and sets up the outside plastic gyro wheel of metal gyro wheel, the required power of motion of gyro wheel is little in the motion process, and does not have the noise of metalwork collision, and the iron powder that the friction between the metalwork produced can not appear yet in long-time use, and when the slide rail bore greatly, inboard metal gyro wheel is as bearing the main part, and the phenomenon of out of roundness can not appear in the roller train, has improved sliding rail set spare's use smoothness and life.

Description

Heavy-duty slide rail assembly

Technical Field

The utility model relates to a slide rail technical field especially relates to heavy load type sliding rail set spare.

Background

At present, the common roller train slide rail on the market is divided into two types according to the roller material: plastic rollers and metal rollers. The plastic roller group has better elasticity, self-lubricating nature, and the slide rail has advantages such as the motility is little, small in noise, the hand is smooth in the use, but when the slide rail load is great, the plastic gyro wheel can appear out of round phenomenon, and the slide rail motility increases this moment, and the gyro wheel is very easily cracked in the use, leads to the risk that the slide rail became invalid to appear. Metal roller train is comparatively close with the slide rail material because its material performance, and the bearing capacity has very big reinforcing than the plastic gyro wheel, but the slide rail metal gyro wheel can collide the noise production with the metal track when the motion, and long-time back metal gyro wheel and metal track friction can produce the iron powder, increase the frictional force between the track and influence the slide rail and use and feel.

SUMMERY OF THE UTILITY MODEL

To address the above-discussed shortcomings of the prior art, it is an object of the present invention to provide a heavy duty slide rail assembly to address one or more problems of the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

heavy-duty type sliding rail set spare, including last rail, well rail, lower rail, between last rail and the well rail respectively slidable sets up the roller train between well rail and the lower rail, the roller train includes the holder, rotatably set up the gyro wheel on the holder, surface contact with last rail internal surface, well rail surface respectively about the gyro wheel when sliding rail set spare removes to and well rail internal surface, lower rail surface contact, the gyro wheel includes the metal gyro wheel and sets up the outside plastic gyro wheel of metal gyro wheel.

Furthermore, the holder is provided with a mounting groove, two sides of the mounting groove are provided with shaft protrusions, and the shaft protrusions on the two sides are clamped into two ends of the plastic roller.

Furthermore, the near end and the far end of the upper part of the retainer are provided with elastic parts.

Furthermore, the retainer comprises two upper rail retainers and a lower rail retainer, the upper rail retainers are of a half-wrapped frame structure, and the lower rail retainers are of a full-wrapped frame structure.

Furthermore, at least two first limiting blocks are arranged on the inner side of the upper rail and used for limiting the movement of the upper rail retainer.

Furthermore, a second limiting block is arranged at the near end of the outer surface of the middle rail, and a third limiting block is arranged at the far end of the outer surface of the middle rail and used for limiting the movement of the upper rail retainer.

Furthermore, the lower part of the middle rail is provided with a second limiting edge, and the inner side of the middle rail and the surface of the second limiting edge are provided with fourth limiting blocks for limiting the movement of the lower rail retainer.

Furthermore, the lower rail is provided with a third limiting edge, and a fifth limiting block is respectively arranged at the near end and the far end of the third limiting edge and used for limiting the movement of the lower rail retainer.

Furthermore, the lower rail retainer is provided with a gap for the third limiting edge to be clamped in.

Furthermore, the outer surface of the middle rail is provided with a limiting wheel, the lower part of the upper rail is provided with a first limiting edge, and the first limiting edge surrounds the outer side of the limiting wheel.

Compared with the prior art, the utility model discloses a beneficial technological effect as follows:

(one) the utility model discloses a gyro wheel includes the metal gyro wheel and sets up the outside plastic gyro wheel of metal gyro wheel, the required power of motion of gyro wheel is little in the motion process, and does not have the noise of metalwork collision, and the iron powder that the friction between the metalwork produced can not appear yet in long-time use, bears when great when the slide rail, and inboard metal gyro wheel is as bearing the main part, and the phenomenon of out of round can not appear in the wheel train, has improved sliding rail set's use and has been felt and life in the same direction as smooth.

The near end and the far end on the upper portion of the retainer are provided with elastic parts which are used for pushing and pulling the sliding rail assembly to abut against the limiting block in place, so that the sliding rail assembly is prevented from being damaged by excessive force in pushing and pulling, and noise generated by collision of the sliding rail and the retainer is reduced.

Drawings

Fig. 1 shows an axonometric view of a heavy-duty slide rail assembly provided by an embodiment of the present invention.

Fig. 2 shows a schematic side view of a heavy-duty slide rail assembly according to an embodiment of the present invention.

Fig. 3 shows a side-view exploded view of a heavy-duty slide rail assembly according to an embodiment of the present invention.

Fig. 4 shows a schematic structural diagram of a top rail holder in a heavy-duty slide rail assembly according to an embodiment of the present invention.

Fig. 5 shows a schematic structural diagram of a lower rail holder in a heavy-duty slide rail assembly according to an embodiment of the present invention.

Fig. 6 shows a schematic structural diagram of a roller in a heavy-duty slide rail assembly according to an embodiment of the present invention.

In the drawings, the reference numbers:

1. rail mounting; 11. a first stopper; 12. a first limit edge; 2. a middle rail; 21. a second limiting block; 22. a third limiting block; 23. a fourth limiting block; 24. a limiting wheel; 25. a second limit edge; 3. a lower rail; 31. a fifth limiting block; 32. a third limit edge; 4. a roller set; 41. an upper rail retainer; 42. a lower rail retainer; 421. a void; 43. an elastic member; 44. mounting grooves; 441. carrying out shaft bulging; 45. a roller; 451. plastic rubber rollers; 4511. salient points; 4512. a through hole; 452. a metal roller; 4521. and (4) a groove.

Detailed Description

To make the objects, features and advantages of the present invention more comprehensible, please refer to the attached drawings. It should be understood that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the limitation of the implementation of the present invention, so that the present invention does not have the essential technical meaning, and any modification of the structure, change of the proportion relation or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function and the achievable purpose of the present invention.

In the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like are defined to indicate an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the present invention and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In order to describe the structure of the heavy-duty slide rail assembly more clearly, the present invention defines the terms "distal end" and "proximal end", the "distal end" is indicated as being close to the pushing direction of the slide rail assembly, the "proximal end" is indicated as being close to one end of the pulling direction of the slide rail assembly, and fig. 1 is taken as an example, the left side of the lower rail 3 in fig. 1 is the proximal end, and the right side of the lower rail 3 in fig. 1 is the distal end.

Example one

Referring to fig. 1 and 2, the heavy-duty slide rail assembly includes an upper rail 1, a middle rail 2, and a lower rail 3, wherein roller sets 4 are slidably disposed between the upper rail 1 and the middle rail 2, and between the middle rail 2 and the lower rail 3, respectively, the roller sets 4 include a holder, a roller 45 is rotatably disposed on the holder, when the slide rail assembly moves, upper and lower surfaces of the roller 45 respectively contact an inner surface of the upper rail 1 and an outer surface of the middle rail 2, and contact an inner surface of the middle rail 2 and an outer surface of the lower rail 3, and the roller 45 includes a metal roller 452 and a plastic roller 451 disposed outside the metal roller 452.

The specific structure of the roller group 4 is described below as follows:

specifically, referring to fig. 5, the plastic roller 451 has a through hole 4512, an inner wall of the through hole 4512 has a bump 4511, and an inner wall of the metal roller 452 has a groove 4521 matched with the bump 4511 for increasing the friction between the plastic roller 451 and the metal roller 452. Of course, in other embodiments of the present invention, the plastic roller 451 and the metal roller 452 may be integrally molded by casting, and the plastic roller 451 may be fixed outside the metal roller 452 without further limitation.

Referring to fig. 4, further, the upper portion and both sides of the holder are provided with mounting grooves 44, shaft protrusions 441 are disposed on both sides in the mounting grooves 44, and the shaft protrusions 441 on both sides are clamped in through holes 4512 at both ends of the plastic roller 451.

Referring to fig. 4 and 5, further, the proximal end and the distal end of the upper portion of the retainer are provided with elastic members 43 for abutting against the limiting block when the sliding rail assembly is pushed and pulled in place, so as to prevent the sliding rail assembly from being damaged due to excessive pushing and pulling force.

Referring to fig. 3, 4 and 5, further, the holder includes two upper rail holders 41 and a lower rail holder 42, the upper rail holders 41 are half-wrapped frame structures, and the lower rail holder 42 is a full-wrapped frame structure.

Referring to fig. 1, fig. 2 and fig. 3, further, two first limiting blocks 11 are disposed inside the upper rail 1, and two second limiting blocks 21 are disposed at the proximal end of the outer surface of the middle rail 2, opposite to each other, for limiting the movement of the upper rail holder 41 at the proximal end.

Referring to fig. 1, fig. 2 and fig. 3, two third stoppers 22 are oppositely disposed at the distal end of the outer surface of the middle rail 2, and are used for limiting the movement of the distal upper rail holder 41.

Referring to fig. 1, fig. 2 and fig. 3, further, the middle rail 2 is a half-wrapped frame structure, the lower portion of the middle rail 2 is provided with a second limiting edge 25, and the distal end of the inner side of the middle rail 2 and the distal end surface of the second limiting edge 25 are provided with a fourth limiting block 23 for limiting the movement of the lower rail holder 42.

Referring to fig. 1, fig. 2 and fig. 3, further, the lower rail 3 has a third limiting edge 32, and a proximal end and a distal end of the third limiting edge 32 are respectively provided with a fifth limiting block 31 for limiting the movement of the lower rail holder 42.

Referring to fig. 2 and 3, further, the lower rail holder 42 has a gap 421 for the third limiting edge 32 to be inserted into.

The moving distance of the upper rail holder 41 at the proximal end between the two second stoppers 21, the moving distance of the upper rail holder 41 at the distal end between the two third stoppers 22, and the moving distance of the lower rail holder 42 between the two fifth stoppers 31 are equal.

Referring to fig. 1, fig. 2 and fig. 3, further, two sides of the outer surface of the middle rail 2 are provided with limiting wheels 24, the upper rail 1 is of a half-wrapped frame structure, two sides of the lower portion of the upper rail 1 are provided with first limiting edges 12, and the first limiting edges 12 surround the outer sides of the limiting wheels 24, so that the upper rail 1 is prevented from being separated from the middle rail 2 when the sliding rail assembly moves.

The utility model discloses a concrete work flow as follows:

when the upper rail holder 41 is pulled out to the near end along the pulling direction from the far end between the upper rail 1 and the middle rail 2, the lower rail holder 42 is pulled out to the near end from the far end between the middle rail 2 and the lower rail 3, when the upper rail holder 41 is pulled out to the right position, the elastic part 43 of the upper rail holder 41 at the near end abuts against the first limit block 11 at the inner side near end of the upper rail 1 and the second limit block 21 at the outer surface near end of the middle rail 2, the upper rail holder 41 at the far end abuts against the first limit block 11 at the inner side far end of the upper rail 1 and the third limit block 22 at the outer surface near end of the middle rail 2, and the lower rail holder 42 abuts against the fifth limit block 31 at the inner side of the lower rail 3 and the outer surface near end.

The upper rail retainer 41 moves from the near end between the upper rail 1 and the middle rail 2 to the far end along the propelling direction, the lower rail retainer 42 moves from the near end between the middle rail 2 and the lower rail 3 to the far end along the propelling direction, when the upper rail is propelled to the place, the elastic part 43 of the upper rail retainer 41 at the near end abuts against the second limiting block 21 at the far end of the outer surface of the middle rail 2, the upper rail retainer 41 at the far end abuts against the third limiting block 22 at the far end of the outer surface of the middle rail 2, and the lower rail retainer 42 abuts against the fifth limiting block 31 at the far end of the inner side of the lower rail 3 and the fourth limiting block 23 at the second limiting edge 25 of the middle rail 2.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Heavy load type slide rail set spare, its characterized in that: including last rail, well rail, lower rail, between last rail and the well rail, respectively slidable sets up the roller train between well rail and the lower rail, the roller train includes the holder, rotatably set up the gyro wheel on the holder, the surface contact with last rail internal surface, well rail surface respectively about the gyro wheel when slide rail assembly removes to and well rail internal surface, lower rail surface contact, the gyro wheel includes the metal gyro wheel and sets up the outside plastic gyro wheel of metal gyro wheel.

2. The heavy duty slide rail assembly of claim 1 wherein: the plastic idler wheel is characterized in that the retainer is provided with a mounting groove, two sides in the mounting groove are provided with shaft protrusions, and the shaft protrusions on the two sides are clamped into two ends of the plastic idler wheel.

3. The heavy duty slide assembly of claim 2 wherein: the near end and the far end of the upper part of the retainer are provided with elastic pieces.

4. The heavy duty slide rail assembly of claim 2 wherein: the retainer comprises two upper rail retainers and a lower rail retainer, wherein the upper rail retainers are of a half-wrapped frame structure, and the lower rail retainers are of a full-wrapped frame structure.

5. The heavy duty slide rail assembly of claim 4 wherein: at least two first limiting blocks are arranged on the inner side of the upper rail and used for limiting the movement of the upper rail retainer.

6. The heavy duty slide rail assembly of claim 5 wherein: the near end of the outer surface of the middle rail is provided with a second limiting block, and the far end of the outer surface of the middle rail is provided with a third limiting block used for limiting the movement of the upper rail retainer.

7. The heavy duty slide assembly of claim 6 wherein: the lower part of the middle rail is provided with a second limiting edge, and the inner side of the middle rail and the surface of the second limiting edge are provided with fourth limiting blocks for limiting the movement of the lower rail retainer.

8. The heavy duty slide assembly of claim 7 wherein: the lower rail is provided with a third limiting edge, and the near end and the far end of the third limiting edge are respectively provided with a fifth limiting block for limiting the movement of the lower rail retainer.

9. The heavy duty slide rail assembly of claim 8 wherein: the lower rail retainer is provided with a gap for the third limiting edge to be clamped in.

10. The heavy duty slide rail assembly of claim 1 wherein: the outer surface of the middle rail is provided with a limiting wheel, the lower portion of the upper rail is provided with a first limiting edge, and the first limiting edge surrounds the outer side of the limiting wheel.