Compact slide rail

Abstract

A compact slide rail includes a rail, a slider, and at least one pulley assembly. The track comprises a track body and a sliding groove. The sliding block comprises a sliding block body, an adjusting assembly and at least one pulley installation hole. Each pulley assembly comprises a pulley shaft and a pulley arranged on the pulley shaft in a sleeving mode. And one side of the pulley shaft is fixedly connected with the sliding block through the pulley mounting hole. And the pulleys are accommodated in the sliding grooves. The sliding groove is formed in the middle of one side of the track body, and therefore the sliding block can be installed on the track in a sliding mode only by arranging a row of pulley assemblies. And meanwhile, the two expansion slots are symmetrically formed in the two sides of the track main body, so that a limiting assembly, a photoelectric switch and the like can be mounted on the track main body, and the utilization rate of the track is increased while the functions of the track are improved and expanded.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of track, especially a compact slide rail. BACKGROUND

[0002] Track is a kind of mechanical device for realizing the smooth movement of object, which can be divided into various types according to structure and function, including pulley type, steel ball type, gear type and damping track, etc. Pulley track is widely used in various industries such as furniture manufacturing, automation equipment and conveying system due to its characteristics of fast, smooth and low noise.

[0003] The invention patent with publication number CN101836799A discloses a new pulley type drawer track, which includes a back plate and a sliding plate. Two rows of needle roller sleeve covers are horizontally and parallelly arranged on the back plate, and pulleys are arranged on the needle roller sleeve covers. Slides are arranged on the outer two sides, and the concave grooves on the pulleys are in contact with the slides and clamp the two sides, so that the back plate is guided along the slides.

[0004] The new pulley type drawer track needs to arrange two rows of pulleys along the sliding direction, which results in a large required structural space during installation and use, thereby leading to low space utilization and being not conducive to small space use. SUMMARY

[0005] Therefore, the utility model provides a compact slide rail to solve the above problems.

[0006] A compact slide rail includes a track, a sliding block arranged on one side of the track, and at least one pulley assembly arranged in the track and fixedly connected with the sliding block. The track includes a track main body and a sliding groove arranged on the track main body. The sliding groove is centrally arranged on one side of the track main body. The sliding block includes a sliding block main body, an adjusting assembly arranged in the middle of the sliding block main body, and at least one pulley mounting hole corresponding to the pulley assembly and arranged on the sliding block main body and the adjusting assembly. Each pulley assembly includes a pulley shaft and a pulley sleeved on the pulley shaft. One side of the pulley shaft is fixedly connected with the sliding block through the pulley mounting hole. The pulley is accommodated in the sliding groove.

[0007] Further, the track further includes two expansion grooves symmetrically arranged on both sides of the track main body.

[0008] Further, the sliding groove and the expansion groove are both C-shaped structures.

[0009] Further, the adjusting assembly comprises an adjusting block mounting hole arranged on the slider body, an adjusting block accommodated in the adjusting block mounting hole, and an adjusting hole arranged on one side of the slider body.

[0010] Further, the adjusting hole is in communication with the adjusting block mounting hole.

[0011] Further, the pulley shaft comprises a shaft body, a limiting ring arranged on the shaft body, and two fixing holes arranged at two ends of the shaft body respectively.

[0012] Further, the pulley comprises two roller bearings fixedly sleeved on the pulley shaft, and a pulley sleeve sleeved outside the two roller bearings.

[0013] Further, along the axial direction of the shaft body, two ends of the pulley sleeve are in the structure of a circular truncated cone, i.e., the diameters of the two ends are smaller than that of the middle part.

[0014] Compared with the prior art, the compact sliding rail of the utility model opens the sliding groove in the middle part of the track body, so that the pulley assembly only needs to be arranged in one row to slide and install the slider on the track. Two expansion grooves are symmetrically arranged on both sides of the track body, so that the limiting assembly and the photoelectric switch can be installed on the track body, thereby improving the function of the track and the utilization rate of the track. The arrangement of the adjusting assembly can adjust the position between the roller and the track, so that when the gap between the roller and the track is generated due to the wear of both sides of the roller, the roller can be adjusted by the adjusting block, thereby filling the gap between the worn side of the roller and the track, so that the roller can always be located in the middle of the track, thereby ensuring the running stability of the sliding rail and prolonging the service life of the sliding rail. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a structural schematic view of the compact sliding rail of the utility model.

[0016] Figure 2 FIG. 2 is an exploded structural schematic view of the compact sliding rail of the utility model. Figure 1

[0017] FIG. 3 is an exploded structural schematic view of the pulley assembly of the compact sliding rail of the utility model. Figure 3 Figure 1 FIG. 4 is a sectional structural schematic view of the pulley sleeve of the compact sliding rail of the utility model.

[0018] Figure 4 Figure 1 ​​​

[0019] Figure 5 For Figure 1 The compact slide rail has a structure diagram of a pulley shaft.

[0020] Figure 6 For Figure 1 The compact slide rail has a structure diagram of a pulley shaft. DETAILED DESCRIPTION

[0021] The following will be further described in detail. It should be understood that the description of the present application is not intended to limit the scope of the present application.

[0022] As Figures 1 to 6 shown, it is a structure diagram of a compact slide rail provided by the present application. The compact slide rail comprises a track 10, a sliding block 20 slidingly arranged on one side of the track 10, and at least one pulley assembly 30 slidingly arranged in the track 10 and fixedly connected with the sliding block 20. It is conceivable that the compact slide rail should also include some other functional components, such as mounting components, assembly components, etc., which are all prior art known to those skilled in the art and will not be described here.

[0023] The track 10 comprises a track body 11, a sliding groove 12 arranged on the track body 11, and two expansion grooves 13 symmetrically arranged on both sides of the track body 11.

[0024] The size of the track body 11 can be specifically set according to the use scenario, and is made of metal or alloy with good oxidation resistance and hard texture, such as aluminum alloy. The track body 11 itself is a prior art and will not be described here.

[0025] The sliding groove 12 is centrally arranged on one side of the track body 11 and is used to accommodate the pulley assembly 30. The sliding groove 12 is arranged on the track body 11 along the extension direction of the track body 11, and the cross section thereof can be a C-shaped structure.

[0026] Two expansion grooves 13 are arranged on both sides of the track body 11 along the extension direction of the track body 11. The expansion groove 13 can also be arranged in a C-shaped structure, and one side of the C-shaped opening thereof penetrates the outer side wall of the track body 11. The expansion groove 13 can accommodate a limiting component (not shown) for preventing the pulley assembly 30 from derailing and a photoelectric switch (not shown) for detecting the running condition of the sliding block 20, thereby expanding the function of the track 10 and improving the utilization rate of the track 10. The limiting component and the photoelectric switch should be a prior art and will not be described here.

[0027] The sliding block 20 is fixedly connected with the pulley assembly 30, so that the sliding block 20 can be slidably connected with the track 10 through the pulley assembly 30. The sliding block 20 comprises a sliding block body 21, an adjusting assembly 22 arranged in the middle of the sliding block body 21, and at least one pulley mounting hole 23 arranged in the sliding block body 21 and the adjusting assembly 22 corresponding to the pulley assembly 30.

[0028] The sliding block body 21 can be a rectangular structure, which is used to carry transported objects or is fixedly connected with other connected objects, so that the connected objects can be slidably connected with the track 10, such as a drawer. The sliding block body 21 is located on the side of the track body 11 facing the opening direction of the sliding groove 12, and is fixedly connected with the pulley assembly 30, so that it can slide back and forth along the extension direction of the track 10 under the action of the pulley assembly 30.

[0029] The adjusting assembly 22 comprises an adjusting block mounting hole 221 arranged on the sliding block body 21, an adjusting block 222 accommodated in the adjusting block mounting hole 221, and an adjusting hole 223 arranged on one side of the sliding block body 22.

[0030] The adjusting block mounting hole 221 is used to accommodate the adjusting block 222. The adjusting block mounting hole 221 is located on the side of the sliding block body 21 opposite to the track 10, and can be a waist-shaped hole.

[0031] The shape of the adjusting block 222 matches the adjusting block mounting hole 221. The adjusting block 222 is used to adjust the position of the pulley assembly 30 on the track 10 perpendicular to the sliding direction. Specifically, the length of the adjusting block 222 is less than the length of the adjusting block mounting hole 221 in the direction perpendicular to the sliding direction of the sliding block body 21, so that a gap is formed between the adjusting block mounting hole 221 and the adjusting block mounting hole 222. Due to the existence of the gap, the adjusting block 222 can move left and right in the adjusting block mounting hole 221. The pulley mounting hole 23 is also provided on the adjusting block 222, and the pulley assembly 30 can be fixed on the adjusting block 222 through the pulley mounting hole 23, so that the pulley assembly 30 can move left and right with the adjusting block 222, thereby adjusting the position of the pulley assembly 30 in the sliding groove 12, and adjusting the contact force between the pulley assembly 30 and the track 10, thereby adjusting the tightness between the pulley assembly 30 and the track 10. At the same time, by adjusting the contact force between the pulley assembly 30 and the track 10, the tightness requirement can be met after all the pulley assemblies 30 are worn out, thereby prolonging the service life of the compact slide rail.

[0032] The extending direction of the adjusting hole 223 is perpendicular to the sliding direction of the sliding block body 21, and the adjusting hole 223 is arranged on one side of the sliding block body 21. The adjusting hole 223 is in communication with the adjusting block mounting hole 221. An adjusting rod (not shown) should be fixedly arranged on the side of the sliding block body 21 facing the adjusting hole 223. The adjusting hole 223 can be a threaded hole, and the adjusting rod can be a screw. One end of the adjusting rod passes through the adjusting hole 223 and is rotatably connected with the adjusting block 222. When the pulley assembly 30 needs to be adjusted, the adjusting rod can be rotated, so that the adjusting rod moves during extension and retraction, thereby adjusting the position of the pulley assembly 30.

[0033] The number of pulley mounting holes 23 is consistent with the number of pulley assemblies 30, which is used to fixedly install the sliding block 20 on one side of the pulley assembly 30. When two or more pulley assemblies 30 are arranged, a plurality of pulley mounting holes 23 for installing the pulley assembly 30 are arranged in a straight line along the sliding direction of the sliding block body 21 and are centrally arranged on the sliding block body 21 and the adjusting assembly 22. The pulley mounting hole 23 can be a circular stepped structure, and its size is adapted to the diameter of the pulley shaft 31 of the pulley assembly 30.

[0034] The pulley assembly 30 is fixedly connected with the sliding block 20 and is used to drive the sliding block 20 to slide along the sliding groove 12. In the embodiment, in order to ensure the stability of the sliding block 20, three pulley assemblies 30 are arranged along the center line of the sliding block 20. Each pulley assembly 30 comprises a pulley shaft 31 and a pulley 32 sleeved on the pulley shaft 31.

[0035] The pulley shaft 31 comprises a shaft body 311, a limiting ring 312 arranged on the shaft body 311, and two fixing holes 313 arranged at two ends of the shaft body 311 respectively.

[0036] The shaft body 311 is a cylindrical structure, and the diameter of the shaft body 311 is matched with the inner diameter of the pulley 32. The shaft body 311 is used to arrange the pulley 32.

[0037] The limiting ring 312 is located on the side of the shaft body 311 facing the sliding block 20. When the shaft body 311 is installed on the sliding block body 221 and the pulley 32 is assembled, one side of the limiting ring 312 abuts against one side of the pulley 32, thereby limiting one side of the pulley 32, so as to fix the pulley 32 on the shaft body 311.

[0038] The fixing hole 313 can be a threaded hole arranged at two ends of the pulley shaft 31. The fixing hole 313 at one end of the pulley shaft 31 abuts against the pulley mounting hole 23, and then a bolt or other fastener is used for fixed connection, thereby fixing the pulley shaft 31 on the sliding block 20. The fixing hole 313 at the other end of the pulley shaft 31 is used to limit the other side of the pulley 32 after the bolt is screwed, so as to fix the pulley 32 between the bolt and the limiting ring 312.

[0039] The pulley 32 comprises two roller bearings 321 fixedly arranged on the pulley shaft 311 respectively, and a pulley sleeve 322 sleeved on the outer side of the roller bearing 31.

[0040] The inner rings of the two roller bearings 321 are fixedly connected with the pulley shaft 31, thereby fixing the pulley 32 on the pulley shaft 31. The specific fixed connection mode can be interference fit.

[0041] The pulley sleeve 322 is covered and fixed on the outer rings of the two roller bearings 321 and forms a roller shape under the support of the outer rings of the two roller bearings 321. The pulley sleeve 322 can be made of wear-resistant materials such as Teflon, or mute materials such as rubber and the like. Figure 4As shown, the inner hole of the pulley sleeve 322 has a partition ring for separating the two roller bearings 321. In the axial direction of the shaft body 311, the two ends of the pulley sleeve 322 are in the form of a circular truncated cone, that is, the diameters of the two ends are smaller than the diameter of the middle part, so that the outer contour of the roller 32 is matched with the inner contour of the sliding groove 12, so that when the roller 32 is accommodated in the sliding groove 12, the outer contour can be matched with the inner contour of the sliding groove 12, thereby ensuring the stability of the roller 32.

[0042] Compared with the prior art, the compact slide rail provided by the utility model sets the sliding groove 12 in the middle part of the rail body 11, so that only one row of pulley assemblies 30 is needed to slide the sliding block 20 on the rail 10. Two expansion grooves 13 are symmetrically arranged on both sides of the rail body 11, so that the limiting assembly and the photoelectric switch can be installed on the rail body 11, thereby improving the function and utilization rate of the rail 10. The adjustment assembly 22 is arranged to adjust the position between the roller 32 and the rail 10, so that when the gap between the roller 32 and the rail 10 is generated due to wear on both sides of the roller 32, the roller 32 can be adjusted by the adjusting block 222, thereby filling the gap between the worn side of the roller 32 and the rail 10, so that the roller 32 can always be located in the middle of the rail 10, thereby ensuring the running stability of the slide rail and prolonging the service life of the slide rail.

[0043] The above is only a preferred embodiment of the utility model, and is not used to limit the protection scope of the utility model, and any modification, equivalent replacement or improvement within the spirit of the utility model is covered in the claim scope of the utility model.

Claims

1. A compact slide rail, characterized in that: The compact slide rail includes a track, a slider slidably disposed on one side of the track, and at least one pulley assembly slidably disposed within the track and fixedly connected to the slider. The track includes a track body and a sliding groove disposed on the track body, the sliding groove being centrally located on one side of the track body. The slider includes a slider body, an adjustment component disposed in the middle of the slider body, and at least one pulley mounting hole corresponding to the pulley assembly, which is opened on the slider body and the adjustment component. Each pulley assembly includes a pulley shaft and a pulley sleeved on the pulley shaft. One side of the pulley shaft is fixedly connected to the slider through the pulley mounting hole, and the pulley is housed within the sliding groove.

2. The compact slide rail as described in claim 1, characterized in that: The track also includes two expansion slots symmetrically arranged on both sides of the track body.

3. The compact slide rail as described in claim 2, characterized in that: Both the sliding groove and the expansion groove are C-shaped structures.

4. The compact slide rail as described in claim 1, characterized in that: The adjustment assembly includes an adjustment block mounting hole disposed on the slider body, an adjustment block accommodated in the adjustment block mounting hole, and an adjustment hole disposed on one side of the slider body.

5. The compact slide rail as described in claim 4, characterized in that: The adjustment hole is connected to the adjustment block mounting hole.

6. The compact slide rail as described in claim 1, characterized in that: The pulley shaft includes a shaft body, a limiting ring disposed on the shaft body, and two fixing holes respectively disposed at both ends of the shaft body.

7. The compact slide rail as described in claim 6, characterized in that: The pulley includes two roller bearings fixedly mounted on the pulley shaft, and a pulley sleeve mounted on the outside of the two roller bearings.

8. The compact slide rail as described in claim 7, characterized in that: Along the axial direction of the shaft, the two ends of the pulley sleeve are frustum structures, that is, the diameter of the two ends along the axial direction is smaller than the diameter of the middle part.

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