Slide rail and cabinet

Abstract

The utility model provides a slide rail and cabinet relates to slide rail structure field, it includes outer rail, the middle rail of sliding type installation in outer rail and the inner rail of sliding type installation in middle rail, the retraction end of middle rail rotatable type installation has locking lever, middle rail still is provided with the reset piece for resetting locking lever, the retraction end of inner rail is provided with the locking piece for being buckled on locking lever, the unfolding end of outer rail is provided with the unlocking piece, the unlocking piece is used for when the middle rail slides to the unfolding state, the locking lever is rotated to the locking piece and is away from the stirring of, the utility model discloses have improved the effect that the inner rail and the smoothness of middle rail unlocking.

Description

Technical Field

[0001] This utility model relates to the field of slide rail structure technology, and more specifically, to a slide rail and cabinet. Background Technology

[0002] A drawer slide is a mechanical device that enables smooth linear reciprocating motion. It typically consists of outer, middle, and inner rails. Due to its low friction, high load-bearing capacity, and precise guidance, it is widely used in scenarios requiring flexible movement or pull-out mechanisms. For example, in server racks, drawer slides are installed between the rack and the equipment, allowing servers to slide out smoothly for maintenance or hardware replacement, preventing damage from direct dragging. In home or office settings, drawer slides ensure smooth and silent opening and closing of storage spaces. Whether it's a deep drawer in a kitchen cabinet or a multi-tiered drawer in a desk or filing cabinet, high-quality drawer slides ensure long-term use without jamming or falling off, significantly improving operational convenience and space utilization.

[0003] Existing slide rail assemblies, such as the one disclosed in application number CN201510314478.6, include an outer slide rail, a middle slide rail, and an inner slide rail. The first protrusion of the outer slide rail is provided with a first unlocking edge, a first stop edge, and a second stop edge. The middle slide rail has a sliding groove and a positioning block is slidably mounted up and down. The positioning block has a first stop end and a second stop end. The second protrusion of the inner slide rail is provided with a first unlocking part, a first stop part, and a second stop part. The first stop end of the positioning block can be controlled to stop between the first stop edge and the second stop edge of the outer slide rail, and the second stop end can be controlled to stop between the first stop part and the second stop part of the inner slide rail. It has a front-to-back movement gap and a vertical displacement stroke, so that the middle slide rail and the inner slide rail can be sequentially closed or pulled out of the outer slide rail.

[0004] The above structure unlocks the middle and inner slide rails by sliding the positioning block up and down while pulling the inner rail. However, since the sliding direction of the positioning block is perpendicular to the sliding direction of the inner rail, there will be a certain sense of jamming when unlocking, which makes the unfolding process not smooth. Utility Model Content

[0005] Therefore, in order to solve the problem of a certain degree of sticking during unlocking, which makes the unfolding process less smooth, this utility model provides a sliding rail, the specific technical solution of which is as follows: A slide rail includes an outer rail, a middle rail slidably mounted on the outer rail, and an inner rail slidably mounted on the middle rail. A locking rod is rotatably mounted at the retracted end of the middle rail, and the middle rail is also provided with a reset member for resetting the locking rod. A locking member is provided at the retracted end of the inner rail for fastening onto the locking rod. An unlocking member is provided at the unfolded end of the outer rail, and the unlocking member is used to rotate the locking rod to disengage from the locking member when the middle rail slides to the unfolded state.

[0006] By adopting the above technical solution, when expansion is required, such as Figure 1 As shown, pulling the inner rail causes it to slide together with the middle rail because the locking element is engaged with the locking rod. Then, by using the unlocking element located at the temporarily open position of the outer rail, the locking rod is rotated to disengage from the locking element. Continuing to pull the inner rail will then unfold the inner rail and the middle rail. When retraction is required, as shown... Figure 2 As shown, pushing the inner rail causes the locking element to re-engage with the locking lever through the action of the reset component. Continuing to push the inner rail completes the entire retraction. During the above process, when unlocking the inner rail and middle rail after they have slid away from the outer rail simultaneously, the unlocking is accomplished by rotating the unlocking lever. Compared to sliding unlocking in the vertical direction, rotational unlocking reduces the feeling of jamming and improves the smoothness of unlocking the inner rail and middle rail.

[0007] Furthermore, the locking component includes a locking block and a first locking block. The locking block is disposed on the side of the inner rail near the middle rail, and a locking groove is formed on the downward-facing side of the locking block. The first locking block is disposed on the end of the locking rod near the unfolded end of the middle rail. When the inner rail is retracted into the middle rail, the first locking block engages in the locking groove, and the reset component is in a working state. A first guide inclined surface is provided on the side of the locking block away from the unfolded end of the inner rail. When the inner rail is in an unfolded state relative to the middle rail, the first guide inclined surface is directly opposite the first locking block.

[0008] Furthermore, the unlocking component includes an unlocking block and a second locking block. The unlocking block is disposed on the side of the outer rail near the middle rail. The second locking block is disposed on the end of the locking rod near the unfolded end of the middle rail, and the second locking block is located on the side of the locking rod near the outer rail. A second guide inclined surface is provided on the side of the unlocking block near the retracted end of the outer rail. When the middle rail is retracted into the outer rail, the second guide inclined surface is directly opposite the second locking block.

[0009] Furthermore, a slot is provided on the downward-facing side of the unlocking block. When the inner rail is in the unfolded state, the second locking block is inserted into the slot; when the inner rail is retracted into the middle rail, the second locking block leaves the slot.

[0010] Furthermore, the reset component includes a spring, one end of which is mounted on the middle rail and the other end of which is mounted on the side of the locking rod away from the first locking block; when the first locking block is engaged in the locking groove, the spring is in a compressed state.

[0011] Furthermore, a mounting hole is provided at the position of the spring on the middle rail, and the spring is installed in the mounting hole; a first positioning post is provided at the top of the mounting hole, and a second positioning post is provided on the side of the locking rod near the positioning post; the two ends of the spring are respectively sleeved on the first positioning post and the second positioning post.

[0012] Furthermore, a first guide arc surface is provided on the side of the first card block near the unfolded end of the central rail.

[0013] Furthermore, a second guide arc surface is provided on the side of the second card block near the unfolded end of the central rail.

[0014] Furthermore, the locking rod is installed on the side of the middle rail near the inner rail, and the middle rail has an arc-shaped groove for the second locking block to pass through, the arc-shaped groove extending in the direction in which the second locking block swings with the locking rod.

[0015] Accordingly, this utility model also provides a cabinet, including the slide rails described above. Attached Figure Description

[0016] The present invention can be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale; rather, the focus is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0017] Figure 1 This is a perspective structural diagram of the slide rail unfolding steps according to an embodiment of the present invention; Figure 2 This is a perspective structural diagram of the slide rail retraction step according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a slide rail structure according to an embodiment of the present invention; Figure 4 This is an exploded view of a slide rail structure according to an embodiment of the present invention; Figure 5 yes Figure 2 A magnified view of part A in the image; Figure 6 yes Figure 3 A magnified view of part B in the image; Figure 7 yes Figure 2 A magnified view of part C; Figure 8 yes Figure 4 A magnified view of part of D.

[0018] Explanation of reference numerals in the attached figures: 1. Outer rail; 2. Middle rail; 21. Arc groove; 22. Mounting hole; 23. First positioning post; 3. Inner rail; 4. Locking rod; 41. Second positioning post; 5. Spring; 6. Locking component; 61. Locking block; 611. Locking groove; 612. First guide inclined surface; 62. First locking block; 621. First guide arc surface; 7. Unlocking component; 71. Unlocking block; 711. Second guide inclined surface; 712. Locking groove; 72. Second locking block; 721. Second guide arc surface. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit its scope of protection.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0023] like Figure 3 and Figure 4 As shown, a slide rail in one embodiment of this utility model includes an outer rail 1, a middle rail 2 slidably mounted on the outer rail 1, and an inner rail 3 slidably mounted on the middle rail 2. A locking rod 4 is rotatably mounted at the retracted end of the middle rail 2, and the middle rail 2 is also provided with a reset member for resetting the locking rod 4. A locking member 6 for fastening onto the locking rod 4 is provided at the retracted end of the inner rail 3. An unlocking member 7 is provided at the unfolded end of the outer rail 1, which is used to move the locking rod 4 to rotate away from the locking member 6 when the middle rail 2 slides to the unfolded state. In this embodiment, the unfolded end refers to the front end of the slide rail in the unfolding direction (e.g., ...). Figure 1The arrow in the image indicates the unfolding direction; the retracting end refers to the front end of the slide rail in the retracting direction (e.g., ...). Figure 2 The arrow in the image indicates the direction of retraction.

[0024] Specifically, such as Figure 5 and Figure 6 As shown, the locking component 6 includes a locking block 61 and a first locking block 62. The locking block 61 is located on the side of the inner rail 3 near the middle rail 2, and a locking groove 611 is formed on the downward-facing side of the locking block 61. The first locking block 62 is located on the end of the locking rod 4 near the unfolded end of the middle rail 2. When the inner rail 3 is retracted into the middle rail 2, the first locking block 62 engages in the locking groove 611, and the resetting component is in working condition. A first guide inclined surface 612 is provided on the side of the locking block 61 away from the unfolded end of the inner rail 3. When the inner rail 3 is in the unfolded state relative to the middle rail 2, the first guide inclined surface 612 and the first locking block 62 are directly opposite each other. Directly opposite means that they are directly opposite each other in the sliding direction of the inner rail 3 relative to the middle rail 2. A first guide arc surface 621 is provided on the side of the first locking block 62 near the unfolded end of the middle rail 2. Figure 1 and Figure 5 As shown, when the middle rail 2 and inner rail 3 slide together to the position of the unlocking piece 7, the locking lever 4 can be rotated by the unlocking piece 7, causing the first locking block 62 to leave the locking groove 611. Then, by continuing to pull the inner rail 3, the inner rail 3 and the middle rail 2 can be unfolded. Figure 2 and Figure 5 As shown, push the inner rail 3 until the locking block 61 moves to the locking rod 4. Through the guiding action of the first guide inclined surface 612 and the first guide arc surface 621, the first locking block 62 is re-engaged into the locking groove 611. Then continue to push the inner rail 3 to complete the retraction.

[0025] like Figure 7 and Figure 8 As shown, the unlocking component 7 includes an unlocking block 71 and a second locking block 72. The unlocking block 71 is located on the side of the outer rail 1 near the middle rail 2; the second locking block 72 is located on the side of the locking lever 4 near the unfolded end of the middle rail 2, and is situated on the side of the locking lever 4 near the outer rail 1; a second guide inclined surface 711 is provided on the side of the unlocking block 71 near the retracted end of the outer rail 1. When the middle rail 2 is retracted into the outer rail 1, the second guide inclined surface 711 and the second locking block 72 are directly opposite each other, meaning they are directly opposite each other in the sliding direction of the middle rail 2 relative to the outer rail 1; a second guide arc surface 721 is provided on the side of the second locking block 72 near the unfolded end of the middle rail 2; as shown... Figure 1 , Figure 7 and Figure 8 As shown, when the middle rail 2 and the inner rail 3 slide together to the position of the unlocking block 71, the locking rod 4 can be driven to rotate by the guiding action of the second guide inclined surface 711 and the second guide arc surface 721, so that the first locking block 62 leaves the lock groove 611 and the unlocking is completed.

[0026] like Figure 6 and Figure 7 As shown, the locking rod 4 is installed on the side of the middle rail 2 near the inner rail 3. The middle rail 2 has an arc-shaped groove 21 through which the second locking block 72 passes. The arc-shaped groove 21 extends in the direction in which the second locking block 72 swings with the locking rod 4, so that the locking rod 4 can rotate stably.

[0027] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a slot 712 is provided on the downward-facing side of the unlocking block 71. When the inner rail 3 is in the unfolded state relative to the middle rail 2, the second locking block 72 engages in the slot 712, locking the position between the middle rail 2 and the outer rail 1. When the inner rail 3 is retracted into the middle rail 2, the second locking block 72 disengages from the slot 712. The reset component includes a spring 5, one end of which is mounted on the middle rail 2, and the other end is mounted on the side of the locking rod 4 away from the first locking block 62. When the first locking block 62 engages in the locking groove... When the inner rail 3 is pulled to the locking block 61 away from the locking rod 4, the locking rod 4 is driven to rotate by the elastic recovery of the spring 5, so that the second locking block 72 is engaged in the slot 712. When the inner rail 3 is pushed to the locking rod 4, the second locking block 72 is disengaged from the slot 712 by the guiding action of the first guide inclined surface 612 and the first guide arc surface 621, so that the first locking block 62 is re-engaged in the locking groove 611.

[0028] like Figure 5 As shown, the middle rail 2 has a mounting hole 22 at the position corresponding to the spring 5, and the spring 5 is installed in the mounting hole 22; a first positioning post 23 is provided at the top of the mounting hole 22, and a second positioning post 41 is provided on the side of the locking rod 4 near the positioning post. The two ends of the spring 5 are respectively sleeved on the first positioning post 23 and the second positioning post 41, thereby achieving stable installation of the elasticity.

[0029] The implementation principle of a slide rail in this embodiment is as follows: When it needs to be unfolded, the inner rail 3 is pulled. At this time, since the first locking block 62 is engaged in the locking groove 611, the inner rail 3 slides together with the middle rail 2 until it slides to the second guide inclined surface 711 on the unlocking block 71 abutting the second locking block 72. If the inner rail 3 is pulled further, the locking rod 4 will rotate due to the guiding action of the second guide inclined surface 711 and the second guide arc surface 721, causing the first locking block 62 to leave the locking groove 611. If the inner rail 3 is pulled further, when the locking block 61 leaves the locking rod 4, the locking rod 4 will recover elastically due to the spring 5. The action of the locking lever 4 causes the second locking block 72 to engage in the slot 712, thus achieving full expansion between the inner rail 3, middle rail 2, and outer rail 1. When retraction is required, the inner rail 3 is pushed until the locking block 61 moves to the locking lever 4. Through the guiding action of the first guide inclined surface 612 and the first guide arc surface 621, the locking lever 4 is driven to rotate, causing the second locking block 72 to leave the slot 712. The elastic action causes the first locking block 62 to re-engage in the locking slot 611. Continuing to push the inner rail 3 will achieve full retraction between the inner rail 3, middle rail 2, and outer rail 1.

[0030] This application also discloses a cabinet, which may be a power cabinet, monitoring cabinet, security cabinet, safe, server cabinet, etc. In this embodiment, the cabinet is a server cabinet, which includes the above-mentioned slide rails.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A slide rail, characterized in that, The system includes an outer rail, a middle rail that slides on the outer rail, and an inner rail that slides on the middle rail. A locking rod is rotatably mounted at the retracted end of the middle rail, and the middle rail is also provided with a reset member for resetting the locking rod. A locking member is provided at the retracted end of the inner rail for fastening onto the locking rod. An unlocking member is provided at the unfolded end of the outer rail, and the unlocking member is used to rotate the locking rod to move away from the locking member when the middle rail slides to the unfolded state.

2. The slide rail according to claim 1, characterized in that, The locking component includes a locking block and a first locking block. The locking block is located on the side of the inner rail near the middle rail, and a locking groove is formed on the downward-facing side of the locking block. The first locking block is located at the end of the locking rod near the unfolded end of the middle rail. When the inner rail is retracted into the middle rail, the first locking block engages in the locking groove, and the reset component is in a working state. The side of the locking block away from the unfolded end of the inner rail has a first guide inclined surface. When the inner rail is in an unfolded state relative to the middle rail, the first guide inclined surface is directly opposite the first locking block.

3. A slide rail according to claim 2, characterized in that, The unlocking component includes an unlocking block and a second locking block. The unlocking block is disposed on the side of the outer rail near the middle rail. The second locking block is disposed on the side of the locking rod near the unfolded end of the middle rail. The second locking block is located on the side of the locking rod near the outer rail. A second guide inclined surface is provided on the side of the unlocking block near the retracted end of the outer rail. When the middle rail is retracted into the outer rail, the second guide inclined surface is directly opposite the second locking block.

4. A slide rail according to claim 3, characterized in that, The unlocking block has a slot on its downward-facing side. When the inner rail is in the unfolded state, the second block is inserted into the slot; when the inner rail is retracted into the middle rail, the second block leaves the slot.

5. A slide rail according to claim 4, characterized in that, The reset component includes a spring, one end of which is mounted on the middle rail and the other end of which is mounted on the side of the locking rod away from the first locking block; when the first locking block is engaged in the locking groove, the spring is in a compressed state.

6. A slide rail according to claim 5, characterized in that, The middle rail has a mounting hole at the position corresponding to the spring, and the spring is installed in the mounting hole; a first positioning post is provided at the top of the mounting hole, and a second positioning post is provided on the side of the locking rod near the positioning post; the two ends of the spring are respectively sleeved on the first positioning post and the second positioning post.

7. A slide rail according to claim 2, characterized in that, The first card block has a first guide arc surface on one side near the unfolded end of the middle rail.

8. A slide rail according to claim 3, characterized in that, The second card block has a second guide arc surface on one side near the unfolded end of the middle rail.

9. A slide rail according to claim 3, characterized in that, The locking lever is installed on the side of the middle rail near the inner rail. The middle rail has an arc-shaped groove for the second locking block to pass through, and the arc-shaped groove extends in the direction in which the second locking block swings with the locking lever.

10. A server rack, characterized in that, Includes the slide rail as described in any one of claims 1-9.

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