A light and small T-shaped steel-aluminum alloy slide rail

Abstract

The utility model discloses a portable and small T type structure steel aluminum alloy slide rail, including first outer rail, second outer rail, middle rail and double track cooperation mechanism, wherein double track cooperation mechanism includes C shaped groove, outer rail sliding slot, middle rail sliding slot and steel ball, outer rail sliding slot adopts the design of being located on the opposite inner wall of C shaped groove, and the middle rail sliding slot of cooperation setting at the opposite sides of middle rail makes that C shaped groove has the position cooperation effect of half surrounding to middle rail, adopts this cooperation mode, and middle rail can connect first outer rail and second outer rail simultaneously, and under the structure support of having C shaped groove, the overall width of slide rail is reduced, makes slide rail can adapt to more narrow space environment, satisfies the movement demand of first outer rail, second outer rail and middle rail in small space long distance, and the space adaptability of slide rail is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of slide rail technology, and in particular to a lightweight and compact T-shaped steel-aluminum alloy slide rail. Background Technology

[0002] Telescopic drawer slides, as the core component enabling linear extension and retraction, are widely used in guiding and load-bearing systems in furniture drawers, office equipment, industrial instruments, and aerospace and military industries. However, with product designs becoming increasingly compact and integrated, especially in smart homes, precision instruments, and portable devices where installation space is extremely limited, the structural limitations of traditional telescopic drawer slides are becoming increasingly apparent. Firstly, traditional telescopic drawer slides often use three or more layers of metal rails to achieve stacked extension and retraction via ball bearings or rollers. This stacked structure results in a large total thickness of the slide in the retracted state, leading to a bulky structure, poor space adaptability, and difficulty in integration into thin drawers or cabinets with strict thickness requirements. Secondly, within cavities with limited depth, the thickness of traditional slides makes it difficult to achieve a sufficient extension ratio. Therefore, traditional telescopic drawer slides can no longer meet the high standards of modern industry for space utilization and ease of installation. Thus, there is an urgent need for a drawer slide that is truly suitable for confined spaces and offers extended travel capabilities. Utility Model Content

[0003] The purpose of this utility model is to provide a lightweight and compact T-shaped steel-aluminum alloy slide rail, which solves the problems of poor space adaptability and large limitation of telescopic stroke of traditional telescopic slide rails.

[0004] The present invention provides the following technical solution: a lightweight and compact T-shaped steel-aluminum alloy slide rail, comprising a first outer rail, a second outer rail, a middle rail, and a double-rail cooperating mechanism. The first outer rail, the second outer rail, and the middle rail are arranged parallel to each other. The double-rail cooperating mechanism is provided between the first outer rail and the middle rail, and between the second outer rail and the middle rail. The double-rail cooperating mechanism includes a C-shaped groove, an outer rail groove, a middle rail groove, and a steel ball. The C-shaped groove is opened on the side of the first outer rail near the middle rail and extends along the length direction of the first outer rail. The outer rail groove is located on the inner wall opposite to the C-shaped groove. The middle rail groove is opened on both sides opposite to the middle rail and extends along the length direction of the middle rail. The steel ball is sandwiched between the outer rail groove and the middle rail groove, so that the first outer rail semi-encloses the middle rail along the length direction, and the first outer rail can slide along the length direction to be connected to the middle rail.

[0005] The lightweight and compact T-structured steel-aluminum alloy slide rail as described above, wherein the C-shaped groove is provided on a side of the second outer rail close to the middle rail, two middle rail sliding grooves arranged in parallel are respectively provided on two opposite sides of the middle rail, such that the first outer rail and the second outer rail are respectively semi-enclosed on two sides of the middle rail, and both can slide relatively along the length direction of the middle rail.

[0006] The lightweight and compact T-structured steel-aluminum alloy slide rail as described above, wherein the middle rail comprises a support beam and a chute platform arranged along the length direction, the chute platforms are respectively provided on both sides of the support beam, such that the cross-section of the middle rail is arranged in an "I" shape, and the middle rail sliding grooves are both opened on the chute platform.

[0007] The lightweight and compact T-structured steel-aluminum alloy slide rail as described above, wherein the cross-sections of the first outer rail and the second outer rail are both arranged in a "匚" shape, the dual-rail matching mechanism further comprises a limiting protrusion provided on the outer rail sliding groove, for limiting the sliding of the first outer rail or the second outer rail relative to the middle rail.

[0008] The lightweight and compact T-structured steel-aluminum alloy slide rail as described above, wherein the dual-rail matching mechanism further comprises a ball cage, the ball cages are respectively movably arranged between the first outer rail and the middle rail and between the second outer rail and the middle rail, and a plurality of ball sleeve holes for sleeving steel balls are opened on the ball cage.

[0009] The lightweight and compact T-structured steel-aluminum alloy slide rail as described above, wherein a vertical mounting bar is provided on a side of the first outer rail away from the middle rail, the vertical mounting bar extends along the length direction of the first outer rail and is perpendicular to the side surface of the first outer rail, and a plurality of side mounting holes are provided on the mounting bar.

[0010] The lightweight and compact T-structured steel-aluminum alloy slide rail as described above, wherein a plurality of front mounting holes are opened on a side of the second outer rail away from the middle rail.

[0011] The lightweight and compact T-structured steel-aluminum alloy slide rail as described above, wherein a plurality of mounting abdication holes correspondingly arranged with the front mounting holes are opened on the middle rail, and the aperture of the mounting abdication holes is larger than that of the front mounting holes.

[0012] The lightweight and compact T-structured steel-aluminum alloy slide rail as described above, wherein the first outer rail, the second outer rail and the middle rail are all made of steel-aluminum alloy.

[0013] Compared with the prior art, the present utility model has the following advantages: This utility model provides a lightweight and compact T-shaped steel-aluminum alloy slide rail, consisting of a first outer rail, a second outer rail, and a middle rail, further enhanced by a double-rail engagement mechanism. This mechanism includes a C-shaped groove, an outer rail groove, a middle rail groove, and steel balls. The outer rail groove is located on the inner wall of the C-shaped groove, and in conjunction with the middle rail grooves located on opposite sides of the middle rail, the C-shaped groove provides a semi-enclosed fit with the middle rail. This engagement method allows the middle rail to simultaneously connect to both the first and second outer rails. Supported by the C-shaped groove structure, the overall width of the slide rail is reduced, enabling it to adapt to narrower spaces and meet the long-distance movement requirements of the first, second, and middle rails within small spaces, greatly improving the slide rail's spatial adaptability. Attached Figure Description

[0014] Figure 1 This is a partially exploded perspective view of the slide rail of this utility model.

[0015] Figure 2 This is a front view of the slide rail of this utility model.

[0016] Figure 3 This is a three-dimensional schematic diagram of the slide rail of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. First outer rail; 2. Second outer rail; 3. Middle rail; 4. Double rail mating mechanism; 11. Vertical mounting strip; 21. Front mounting hole; 31. Support beam; 32. Slide platform; 33. Mounting clearance hole; 41. C-groove; 42. Outer rail slide groove; 43. Middle rail slide groove; 44. Steel ball; 45. Limiting protrusion; 46. Steel ball retainer; 111. Side mounting hole; 461. Steel ball sleeve hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: Please refer to the appendix Figure 1 To be continued Figure 3This embodiment provides a lightweight and compact T-shaped steel-aluminum alloy slide rail, characterized by: including a first outer rail 1, a second outer rail 2, a middle rail 3, and a double-rail mating mechanism 4. The first outer rail 1, the second outer rail 2, and the middle rail 3 are arranged parallel to each other. A double-rail mating mechanism 4 is provided between the first outer rail 1 and the middle rail 3, and between the second outer rail 2 and the middle rail 3. The double-rail mating mechanism 4 includes a C-shaped groove 41, an outer rail groove 42, a middle rail groove 43, and a steel ball 44. The C-shaped groove 41 is formed in... The first outer rail 1 is located on the side close to the middle rail 3, and the C-shaped groove 41 extends along the length of the first outer rail 1. The outer rail groove 42 is located on the inner wall opposite to the C-shaped groove 41. The middle rail groove 43 is located on the opposite sides of the middle rail 3 and extends along the length of the middle rail 3. The steel ball 44 is sandwiched between the outer rail groove 42 and the middle rail groove 43, so that the first outer rail 1 is partially surrounded by the middle rail 3 along the length, and the first outer rail 1 can slide and connect to the middle rail 3 along the length. This embodiment provides a lightweight and compact T-shaped steel-aluminum alloy slide rail, consisting of a first outer rail 1, a second outer rail 2, and a middle rail 3. A double-rail engagement mechanism 4 is added, comprising a C-shaped groove 41, an outer rail groove 42, a middle rail groove 43, and steel balls 44. The outer rail groove 42 is located on the inner wall of the C-shaped groove 41, and in conjunction with the middle rail grooves 43 located on opposite sides of the middle rail 3, the C-shaped groove 41 provides a semi-enclosed positional engagement with the middle rail 3. Using this engagement method, the middle rail 3 can simultaneously connect the first outer rail 1 and the second outer rail 2. With the structural support of the C-shaped groove 41, the overall width of the slide rail is reduced, allowing it to adapt to narrower spaces and meet the long-distance movement requirements of the first outer rail 1, the second outer rail 2, and the middle rail 3 within a small space, greatly improving the slide rail's spatial adaptability.

[0020] The second outer rail 2 has a C-shaped groove 41 on the side near the middle rail 3. Two parallel middle rail grooves 43 are provided on each of the opposite sides of the middle rail 3, allowing the first outer rail 1 and the second outer rail 2 to partially surround both sides of the middle rail 3, and both can slide relative to each other along the length of the middle rail 3. The C-shaped grooves 41 of the first outer rail 1 and the second outer rail 2 achieve a full enclosure effect on the middle rail 3, enabling the slide rail to adapt to narrower spaces and allowing for full extension and retraction of the three rail sections within such environments.

[0021] The middle rail 3 includes a support beam 31 and a sliding platform 32 arranged along the length direction. The sliding platform 32 is provided on both sides of the support beam 31, so that the cross-section of the middle rail 3 is arranged in an "I" shape. The middle rail sliding grooves 43 are all opened on the sliding platform 32.

[0022] Both the first outer rail 1 and the second outer rail 2 have a "U" shaped cross-section. The double-rail mating mechanism 4 also includes a limiting protrusion 45 on the outer rail groove 42 to restrict the sliding of the first outer rail 1 or the second outer rail 2 relative to the middle rail 3. The limiting protrusion 45 can prevent the rails from separating from each other under extreme tension.

[0023] The double-rail mechanism 4 also includes steel ball retainers 46, which are movably disposed between the first outer rail 1 and the middle rail 3, and between the second outer rail 2 and the middle rail 3. Each steel ball retainer 46 has multiple steel ball fitting holes 461 for fitting steel balls 44. The steel ball retainers 46 prevent the steel balls 44 from falling out, maintain the equidistant movement of the multiple steel balls 44, and simultaneously engage with the limiting protrusions 45 to prevent the slide rails from disengaging under extreme tension.

[0024] A vertical mounting strip 11 is provided on the side of the first outer rail 1 away from the middle rail 3. The vertical mounting strip 11 extends along the length of the first outer rail 1 and is perpendicular to the side of the first outer rail 1. The mounting strip 11 has multiple side mounting holes 111. The vertical mounting strip 11 and the first outer rail 1 form a T-shaped structure when viewed from the front. The vertical mounting strip 11 is detachably connected to the first outer rail 1, which can increase the rigidity of the first outer rail 1 during movement, increase the load-bearing capacity and smoothness of the slide rail, and make the installation of the slide rail more convenient and efficient.

[0025] The installation direction of the mounting tool in a confined space can be changed through the side mounting hole 111, making it easier to install the slide rail in a narrow space. Furthermore, multiple positive mounting holes 21 are provided on the side of the second outer rail 2 away from the middle rail 3. Multiple mounting clearance holes 33 are provided on the middle rail 3, corresponding to the positive mounting holes 21. The diameter of the mounting clearance holes 33 is larger than the diameter of the positive mounting holes 21, facilitating the insertion of the mounting tool into the positive mounting holes 21.

[0026] Preferably, the first outer rail 1, the second outer rail 2, and the middle rail 3 are all made of steel-aluminum alloy to meet the requirements of self-lubrication, corrosion resistance, and long service life of the slide rail.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight and compact T-shaped steel-aluminum alloy slide rail, characterized in that: Comprises a first outer rail (1), a second outer rail (2), a middle rail (3), and a double-rail fitting mechanism (4). Said first outer rail (1), said second outer rail (2) and said middle rail (3) are arranged parallel to each other, and said double-rail fitting mechanism (4) is provided both between said first outer rail (1) and said middle rail (3) and between said second outer rail (2) and said middle rail (3). Said double-rail fitting mechanism (4) comprises a C-shaped groove (41), outer rail sliding grooves (42), middle rail sliding grooves (43), and steel balls (44). Said C-shaped groove (41) is provided on a side of said first outer rail (1) adjacent to said middle rail (3), and said C-shaped groove (41) extends along the length direction of said first outer rail (1). Said outer rail sliding grooves (42) are provided on opposite inner walls of said C-shaped groove (41). Said middle rail sliding grooves (43) are provided on opposite two sides of said middle rail (3), and said middle rail sliding grooves (43) extend along the length direction of said middle rail (3). Said steel balls (44) are clamped between said outer rail sliding grooves (42) and said middle rail sliding grooves (43), such that said first outer rail (1) semi-surrounds said middle rail (3) along the length direction, and said first outer rail (1) is slidably connected to said middle rail (3) along the length direction.

2. The lightweight and compact T-shaped steel-aluminum alloy slide rail according to claim 1, characterized in that: A side of said second outer rail (2) adjacent to said middle rail (3) is provided with said C-shaped groove (41), and two parallel middle rail sliding grooves (43) are respectively provided on each of opposite two sides of said middle rail (3), such that said first outer rail (1) and said second outer rail (2) respectively semi-surround two sides of said middle rail (3), and both can slide relatively along the length direction of said middle rail (3).

3. The lightweight and compact T-shaped steel-aluminum alloy slide rail according to claim 2, characterized in that: Said middle rail (3) comprises a support beam (31) and sliding groove platforms (32) arranged along the length direction, said sliding groove platforms (32) are provided on both sides of said support beam (31), such that the cross-section of said middle rail (3) is arranged in an "I" shape, and all said middle rail sliding grooves (43) are provided on said sliding groove platforms (32).

4. The lightweight and compact T-shaped steel-aluminum alloy slide rail according to claim 3, characterized in that: The cross-sections of both said first outer rail (1) and said second outer rail (2) are arranged in a "匚" (C-shaped) form. Said double-rail fitting mechanism (4) further comprises a limiting protrusion (45) provided on said outer rail sliding groove (42), for limiting the sliding of said first outer rail (1) or said second outer rail (2) relative to said middle rail (3).

5. A lightweight and compact T-shaped steel-aluminum alloy slide rail according to claim 4, characterized in that: Said double-rail fitting mechanism (4) further comprises a ball retainer (46), said ball retainer (46) is movably arranged between said first outer rail (1) and said middle rail (3), and between said second outer rail (2) and said middle rail (3), and a plurality of ball socket holes (461) for socketing said steel balls (44) are formed on said ball retainer (46).

6. The lightweight and compact T-shaped steel-aluminum alloy slide rail according to claim 1, characterized in that: A side of said first outer rail (1) away from said middle rail (3) is provided with a vertical mounting strip (11), said vertical mounting strip (11) extends along the length direction of said first outer rail (1) and is perpendicular to the side surface of said first outer rail (1), and a plurality of side mounting holes (111) are provided on said mounting strip (11).

7. A lightweight and compact T-shaped steel-aluminum alloy slide rail according to claim 6, characterized in that: The second outer rail (2) has multiple positive mounting holes (21) on the side away from the middle rail (3).

8. A lightweight and compact T-shaped steel-aluminum alloy slide rail according to claim 7, characterized in that: The middle rail (3) is provided with a plurality of mounting clearance holes (33) corresponding to the positive mounting hole (21), and the diameter of the mounting clearance holes (33) is larger than the diameter of the positive mounting hole (21).

9. A lightweight and compact T-shaped steel-aluminum alloy slide rail according to claim 1, characterized in that: The first outer rail (1), the second outer rail (2), and the middle rail (3) are all made of steel-aluminum alloy.

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