An enhanced middle rail structure of a slide rail

Abstract

The utility model relates to slide rail technical field discloses a kind of reinforced slide rail middle rail structure, including middle rail body, reinforcing member being arranged in the side of the middle rail body;Two long sides of the middle rail body are formed along the length direction distribution's convex rib by projecting inward, the reinforcing member is arranged between two convex ribs parts, the middle rail body is equipped with several first connecting holes, the reinforcing member is equipped with the second connecting hole corresponding with first connecting hole, the first connecting hole, the second connecting hole are connected by riveting piece between, so that the outside of the reinforcing member and the inside of the middle rail body abut tightly.The utility model has the beneficial effects of good compression resistance, not easy to deform, keep track movement smooth.

Description

Technical Field

[0001] This utility model relates to the field of slide rail technology, and in particular to an enhanced slide rail middle rail structure. Background Technology

[0002] Slide rails, as a common mechanical component, are widely used in various scenarios requiring sliding functions, such as server racks, drawers, and mechanical equipment. Taking a three-section slide rail in a server rack as an example... Figure 7 As shown, the three-section slide rail includes an inner rail 4, a middle rail 6, and an outer rail 5. The inner rail is usually slidably connected to the middle rail through a beaded mesh, and the middle rail is also slidably connected to the outer rail through a beaded mesh.

[0003] When installing a three-section sliding rail, the inner rail connects to the rack, the outer rail connects to the cabinet, and the middle rail connects the inner and outer rails. When the cabinet is fully opened, the middle rail needs to bear most of the cabinet's weight. However, the middle rail itself has limited thickness, and bearing a large weight for a long time can easily cause the middle rail to deform, leading to sliding jamming and affecting performance. Utility Model Content

[0004] In order to solve the above-mentioned problems in the prior art, this utility model provides an enhanced slide rail middle rail structure, which improves the strength and pressure bearing capacity of the middle rail and effectively prevents the middle rail from deforming and causing the slide rail to slide poorly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An enhanced slide rail center rail structure includes a center rail body and a reinforcing member disposed on the side of the center rail body; the two long sides of the center rail body both protrude inward to form ribs distributed along the length direction, the reinforcing member is disposed between the two ribs, the center rail body is provided with a plurality of first connecting holes, the reinforcing member is provided with second connecting holes corresponding to the first connecting holes, the first connecting holes and the second connecting holes are connected by a riveting member, so that the outer side of the reinforcing member abuts against the inner side of the center rail body.

[0007] By adopting the above technical solution: protruding ribs are set at the edge of the middle rail body to increase the overall strength of the middle rail, and reinforcements are set at the parts of the middle rail body with the greatest stress to further increase the local strength. The reinforcements are riveted to the position between the two protruding ribs on the inner side of the middle rail body by riveting, so that the slide rail will not interfere with the outer rail or inner rail during the movement of the slide rail. This kind of reinforced middle rail has better load-bearing performance, compressive strength and is not easy to deform, so that the slide rail as a whole can maintain smooth movement for a long time.

[0008] Preferably, the middle rail body is provided with two sets of limiting plates, which are spaced apart along the width direction between two convex ribs and protrude from the inner side of the middle rail body; the reinforcing member is provided at the part between the two sets of limiting plates; the end of the limiting plate facing the reinforcing member and the middle rail body are provided with a notch that penetrates the middle rail body, and the two ends of the reinforcing member are bent outward to form a snap-fit ​​part, which passes through the notch and extends into the outside of the limiting plate. The limiting piece itself can increase the strength of the middle rail body; the two ends of the reinforcement are bent to form a snap-fit ​​part, which makes the longitudinal interface of the reinforcement part an irregular cross section, which can increase the strength of the reinforcement part itself; on the other hand, it can make the two ends of the reinforcement part better connected with the middle rail body, preventing the two ends of the reinforcement part from arching or warping and causing motion interference, and also preventing the two ends of the reinforcement piece from separating from the middle rail body; thirdly, after the snap-fit ​​part is inserted into the notch, when the middle rail body is subjected to the gravity of the cabinet and has a downward deformation tendency, the upper end of the snap-fit ​​part can directly abut against the upper end of the notch to directly bear the pressure of this deformation tendency, so as to overcome the deformation tendency of the middle rail body.

[0009] Preferably, the inner side of the limiting piece does not extend beyond the inner side of the protruding rib, and the outer side of the limiting piece extends beyond the inner side of the middle rail body. This ensures that when the engaging part passes through the notch, the inner side of the engaging part fits against the outer side of the limiting piece, and the outer side of the engaging part does not extend beyond the outer side of the middle rail body. By reasonably setting the positions of the inner and outer sides of the limiting piece, interference between the inner side of the limiting piece and the outer rail is prevented, as is interference between the outer side of the engaging part and the outer rail.

[0010] Preferably, the limiting piece is directly stamped onto the middle rail body. Notches are provided at both ends of the limiting piece where it intersects with the middle rail body along its length. The inner surface of the limiting piece is coplanar with the inner surface of the protruding rib. Stamping the limiting piece increases the load-bearing capacity of this part of the middle rail body. The notches on both sides of the limiting piece serve to avoid the locking part and prevent deformation of the middle rail body during stamping.

[0011] Preferably, the thickness of the middle rail body is configured as 'a', and the thickness of the reinforcing member is configured as 'b'; wherein 'a' is configured as 1mm≤a≤1.2mm, and the value of 'b / a' is configured as 0.78-0.85.

[0012] Preferably, the reinforcing member is made of spring steel.

[0013] Preferably, the inner side surface of the reinforcement is provided with raised ribs along its longitudinal edge, and the height of the raised ribs is configured as c, where 0.4mm ≤ c ≤ 0.8mm. The raised ribs further increase the strength of the reinforcement itself.

[0014] Preferably, the inner surface of the reinforcing member is provided with several grooves spaced apart along the width direction, and the two ends of the grooves are ribs. The grooves can weaken the horizontal strength of the reinforcing member, so that the middle rail body can maintain a certain deformation capacity in the horizontal direction to compensate for the installation error of the cabinet and the slide rail in the horizontal direction, prevent the slide rail from jamming, and reduce the wear of the ball bearings in the slide rail.

[0015] Preferably, the cross-section of the groove is configured as an arc surface, and the distance from the bottom of the groove to the inner side of the reinforcement is configured as d, where the value of d / b is configured as 0.45-0.55. The arc shape can better adapt to horizontal deformation. By reasonably configuring the value of d, the strength and compressive strength of the reinforcement can be ensured while also meeting the requirements for horizontal deformation.

[0016] Preferably, the edge of the rib abuts against the rib, and both ends of the rib are chamfered. The edge of the rib directly abuts against the rib, and the mechanical structure of the end face abuts further reduces the pressure on the rail body, while also effectively preventing deformation of the rib in this part (the rib is provided with a beaded track), ensuring more stable sliding of the rail.

[0017] Therefore, this utility model has the beneficial effects of good compressive strength, resistance to deformation, and smooth track movement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0019] Figure 2 for Figure 1 Exploded view.

[0020] Figure 3 This is a schematic diagram of the cross-section of the middle rail body and the reinforcing component.

[0021] Figure 4 This is a cross-sectional view of the middle rail body and the reinforcing component from another direction.

[0022] Figure 5 This is the second implementation method for the middle track.

[0023] Figure 6 This is a second implementation of the enhancement sheet.

[0024] Figure 7 This is a schematic diagram showing the coordinated state of the outer rail, middle rail, and inner rail. Detailed Implementation

[0025] To make the technical problem to be solved, the technical solution, and the beneficial technical effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and several exemplary embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the scope of protection of the present utility model.

[0026] It should be understood that the terms "first," "second," etc., used herein are for descriptive purposes only and should not be construed as indicating or implying relative importance, nor should they be construed as implicitly specifying the number of technical features indicated. Features defined with "first" or "second" may explicitly or implicitly indicate the inclusion of at least one of those features. In this embodiment, the terms "inner side" and "outer side" are used merely for ease of description to distinguish the sides of the middle rail body and the reinforcing member, and are not limitations on the installation direction or usage direction. In this embodiment, the length direction and long side direction refer to the direction of movement of the slide rail, while the width direction is the direction perpendicular to the length direction.

[0027] Example 1: As Figures 1-4 The illustrated reinforced slide rail structure includes a middle rail body 1 and a reinforcing member 2 disposed on the inner side of the middle rail body 1. The two long sides of the middle rail body 1 protrude inward to form ribs 10 distributed along the length direction. The reinforcing member 2 is disposed between the two ribs 10. The middle rail body 1 is provided with a plurality of first connecting holes 11. The reinforcing member 2 is provided with second connecting holes 20 corresponding to the first connecting holes 11. The first connecting holes 11 and the second connecting holes 20 are connected by a riveting member 3, so that the outer side of the reinforcing member 2 abuts against the inner side of the middle rail body 1.

[0028] The middle rail body 1 is provided with two sets of limiting plates 12. The two sets of limiting plates 12 are arranged at intervals between two protruding ribs 10 along the width direction and protrude from the inner side of the middle rail body 1. The reinforcing member 2 is arranged between the two sets of limiting plates 12. The end of the limiting plate 12 facing the reinforcing member 2 and the middle rail body 1 are provided with a notch 13 that penetrates the middle rail body 1. The two ends of the reinforcing member 2 are bent outward to form a snap-fit ​​part 21. The snap-fit ​​part 21 passes through the notch 13 and extends into the outside of the limiting plate 12.

[0029] The inner side of the limiting piece 12 does not extend beyond the inner side of the protruding rib 10, and the outer side of the limiting piece 12 extends beyond the inner side of the middle rail body 1, so that when the locking part 21 passes through the notch 13, the inner side of the locking part 21 fits against the outer side of the limiting piece 12, and the outer side of the locking part 21 does not extend beyond the outer side of the middle rail body 1.

[0030] In some embodiments, the limiting piece 12 is formed directly by stamping on the middle rail body 1. Notches 13 are provided at both ends of the limiting piece 12 along the length direction of the middle rail body 1 where they meet the middle rail body 1. The inner surface of the limiting piece 12 is coplanar with the inner surface of the protruding rib 10.

[0031] In some embodiments, the reinforcing member 2 has a plate-like structure and is made of spring steel. The two long sides of the reinforcing member 2 abut against two protruding ribs respectively. The thickness of the middle rail body 1 is configured as 'a', and the thickness of the reinforcing member 2 is configured as 'b'; where 'a' is configured as 1mm ≤ a ≤ 1.2mm, and the value of b / a is configured as 0.78-0.85. For example, in some embodiments, a = 1.2mm, b = 1mm, the distance between the protruding rib and the inner surface of the middle rail body is 1.2mm, therefore the distance between the protruding rib and the outer surface of the middle rail body is 2.4mm, and the total thickness (a+b) of the middle rail body and the reinforcing member is 2.2mm. Similarly, the total thickness of the limiting piece and the snap-fit ​​piece is 2.2mm, thereby ensuring that the reinforcing piece will not interfere with the outer rail 5 and the inner rail 4 (e.g., Figure 7 (As shown).

[0032] Example 2: Figure 5 and Figure 6 As shown, the structure of the middle rail body in Embodiment 2 is the same as that in Embodiment 1, except for the reinforcing member. Specifically, the inner side of the reinforcing member 2 is provided with a rib 22 along the length direction edge, and the height of the rib 22 is configured as c, where 0.4mm≤c≤0.8mm; the inner side of the reinforcing member 2 is provided with a number of grooves 23 distributed at intervals along the width direction, and the two ends of the grooves 23 pass through the ribs 22.

[0033] The cross-section of the groove 23 is configured as an arc surface, and the distance from the bottom of the groove 23 to the inner side of the reinforcement 2 is configured as d, where the value of d / b is configured as 0.45-0.55. The edge of the rib 22 abuts against the rib 10, and both ends of the rib 22 are provided with chamfers 220. In some embodiments, a=1.2mm, b=1mm, c=0.5mm, d=0.5mm.

[0034] To better support the weight of the cabinet, the reinforcing plate is placed at the part of the middle rail that bears the most weight. That is, when the outer rail is fully extended, the inner end of the outer rail is located between the two ends of the reinforcing plate. Furthermore, the inner end of the outer rail is aligned with the middle position of the reinforcing plate.

[0035] In Example 2, the reinforcing plate further enhances the load-bearing capacity in the vertical direction of gravity through the ribs, while the lateral (horizontal) strength is weakened by setting grooves to maintain a certain deformation capacity of the middle rail in the horizontal direction. Since there will be a certain assembly error between the size of the cabinet and the distance between the two slide rails when the cabinet is installed, the middle rail maintains a certain deformation capacity in the horizontal direction to compensate for this assembly error, thereby reducing the unilateral wear of the balls in the slide rail, improving the smoothness of the slide rail movement, and increasing the service life of the slide rail.

[0036] In the description of this utility model, it should be understood that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, and the other end are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the purpose of more clearly describing the technical solution of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0037] Although specific embodiments of the present invention are described in detail herein, they are given for illustrative purposes only and should not be construed as limiting the scope of the present invention. Various substitutions, alterations, and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. An enhanced slide rail middle rail structure, characterized in that, Includes a central rail body (1) and a reinforcing member (2) disposed on the side of the central rail body (1); The two long sides of the middle rail body (1) protrude inward to form ribs (10) distributed along the length direction. The reinforcing member (2) is disposed between the two ribs (10). The middle rail body (1) is provided with a plurality of first connecting holes (11). The reinforcing member (2) is provided with second connecting holes (20) corresponding to the first connecting holes (11). The first connecting holes (11) and the second connecting holes (20) are connected by a riveting member (3) so that the outer side of the reinforcing member (2) abuts against the inner side of the middle rail body (1).

2. The enhanced slide rail middle rail structure according to claim 1, characterized in that, The middle rail body (1) is provided with two sets of limiting plates (12), which are spaced apart between two protruding ribs (10) along the width direction and protrude from the inner side of the middle rail body (1); the reinforcing member (2) is provided at the part between the two sets of limiting plates (12). The limiting piece (12) has a notch (13) that penetrates the middle rail body (1) at the intersection of one end of the reinforcing member (2) and the middle rail body (1). The two ends of the reinforcing member (2) bend outward to form a snap-fit ​​part (21). The snap-fit ​​part (21) passes through the notch (13) and extends into the outside of the limiting piece (12).

3. The enhanced slide rail middle rail structure according to claim 2, characterized in that, The inner side of the limiting piece (12) does not extend beyond the inner side of the protruding rib (10), and the outer side of the limiting piece (12) extends beyond the inner side of the middle rail body (1), so that when the locking part (21) passes through the notch (13), the inner side of the locking part (21) fits against the outer side of the limiting piece (12), and the outer side of the locking part (21) does not extend beyond the outer side of the middle rail body (1).

4. The enhanced slide rail middle rail structure according to claim 2 or 3, characterized in that, The limiting piece (12) is formed by stamping directly on the middle rail body (1). The two ends of the limiting piece (12) along the length direction of the middle rail body (1) are provided with notches (13) at the intersection with the middle rail body (1). The inner side of the limiting piece (12) is coplanar with the inner side of the protruding rib (10).

5. The enhanced slide rail middle rail structure according to claim 1, 2, or 3, characterized in that, The thickness of the middle rail body (1) is configured as a, and the thickness of the reinforcing member (2) is configured as b; wherein a is configured as 1mm≤a≤1.2mm, and the value of b / a is configured as 0.78-0.

85.

6. The enhanced slide rail middle rail structure according to claim 5, characterized in that, The reinforcing member (2) is made of spring steel.

7. The enhanced slide rail middle rail structure according to claim 5, characterized in that, The inner side of the reinforcing member (2) is provided with ribs (22) along the length direction edge, and the height of the ribs (22) is configured as c, where 0.4mm≤c≤0.8mm.

8. The enhanced slide rail middle rail structure according to claim 7, characterized in that, The inner side of the reinforcing member (2) is provided with a plurality of grooves (23) spaced apart along the width direction, and the two ends of the grooves (23) are penetrated by ribs (22).

9. The enhanced slide rail middle rail structure according to claim 8, characterized in that, The cross-section of the groove (23) is configured as an arc surface, and the distance from the bottom of the groove (23) to the inner side of the reinforcement (2) is configured as d, wherein the value of d / b is configured as 0.45-0.

55.

10. The enhanced slide rail middle rail structure according to claim 7, characterized in that, The edge of the rib (22) abuts against the rib (10), and the two ends of the rib (22) are provided with chamfers (220).

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