An embedded slide rail automatic closing device

Abstract

The utility model discloses an embedded slide rail automatic closing device, including lower fixed rail, middle guide rail and upper slide rail, be equipped with the extension spring in the sliding groove of lower fixed rail, the side surface of lower fixed rail is equipped with the guide groove, and the inside of lower fixed rail is equipped with arc guide block and limit block, and the clearance of arc guide block that upper and lower parallel sets is as the extension of guide groove, and the side surface of lower fixed rail is opposite to arc guide block and is equipped with the gap of intercommunication with guide groove, and limit block is used for limiting middle guide rail, and the upper of guide groove is equipped with sliding block, and one side of slide rail stretches into the sliding groove of lower fixed rail, is used for the tension extension spring, and the other side is located the outside of lower fixed rail, and the outside fixed of upper slide rail has the lever, and the sliding block is in the state of slide rail unfolding and leans on arc guide block, and the lever pushes the sliding block and removes the restriction while the sliding block is positioned to the lever in the sliding process of upper slide rail, and under the tension of extension spring, upper slide rail slides to the side away from arc guide block fast.

Description

Technical Field

[0001] This utility model relates to the field of slide rail technology, and in particular to an embedded slide rail automatic closing device. Background Technology

[0002] Slide rail assemblies, as precise guiding structural components, are used in all aspects of our lives. In traditional slide rail restoration mechanisms, the core component, the "external restoration component," is externally mounted on the side of the fixed rail. This has certain drawbacks in practical applications: 1. The structure is complex, leading to a complicated installation process and high manufacturing and installation costs; 2. It is easily damaged. Because the external restoration component is located on the outside of the fixed rail, if a foreign object falls in, it can easily cause the rail to jam. Due to its complex structure, if it is forcibly pushed or pulled to open or close, it can easily damage the slide rail assembly, resulting in high maintenance costs. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model proposes an embedded slide rail automatic closing device. This automatic closing device adopts an embedded structure, which is simple in structure, has low manufacturing cost, strong structural stability, and occupies little space.

[0004] An embedded slide rail automatic closing device includes a lower fixed rail, a middle guide rail, and an upper sliding rail. A tension spring is installed in the sliding groove of the lower fixed rail. A guide groove is formed on the side of the lower fixed rail. An arc-shaped guide block and a limiting block are provided on the inner side of the lower fixed rail. The gap between the upper and lower parallel arc-shaped guide blocks extends from the guide groove. A notch communicating with the guide groove is provided on the side of the lower fixed rail opposite the arc-shaped guide block. The limiting block restricts the middle guide rail. A slider is provided on the guide groove. One side of the slide rail extends into the sliding groove of the lower fixed rail to tighten the tension spring, and the other side is located outside the lower fixed rail. A lever is fixed to the outer side of the upper sliding rail. In the unfolded state of the slide rail, the slider abuts against the arc-shaped guide block. During the sliding of the upper sliding rail, the lever pushes the slider to release the restriction, while the slider limits the lever. Under the tension of the tension spring, the upper sliding rail quickly slides away from the arc-shaped guide block.

[0005] As a preferred embodiment of the above technical solution, the slider includes a U-shaped locking block and a connecting rod fixed to the bottom of the U-shaped locking block. The U-shaped locking block is used to limit the lever, and the distal end of the connecting rod is used to tighten the tension spring.

[0006] As a preferred embodiment of the above technical solution, the connecting rod is offset from the longitudinal symmetry plane of the U-shaped locking block.

[0007] As a preferred embodiment of the above technical solution, a plug is installed at the far end of the lower fixed rail.

[0008] As a preferred embodiment of the above technical solution, the plug has a groove on its inner side, and the other end of the tension spring is confined within the groove.

[0009] As a preferred embodiment of the above technical solution, the limiting block and the arc-shaped guide block are located on the same side of the lower fixed rail and are arranged opposite to each other.

[0010] As a preferred embodiment of the above technical solution, the arc-shaped guide block and the limiting block are integrally stamped on the lower fixed rail.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. The structure is simple, and the production and installation costs are low. Compared with similar slide rail components, it can further reduce costs and improve the market competitiveness of the product to a certain extent.

[0013] 2. The embedded structure effectively avoids external interference with its operation, resulting in greater stability and helping to further reduce the size of the slide rail. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention when fully contracted.

[0015] Figure 2 This is a schematic diagram of the structure of the present invention in its unfolded state.

[0016] Figure 3 This is an exploded view of the present invention.

[0017] Figure 4 This is a schematic diagram of the slider's structure.

[0018] The attached diagram is labeled as follows: 1-lower fixed rail, 2-middle guide rail, 3-upper sliding rail, 4-tension spring, 5-guide groove, 6-arc guide block, 7-limiting block, 8-notch, 9-slider, 901-U-shaped locking block, 902-connecting rod, 10-pulling rod, 11-plug, 12-slot. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] like Figures 1 to 4An embedded slide rail automatic closing device is shown, comprising a lower fixed rail 1, a middle guide rail 2, and an upper sliding rail 3. A tension spring 4 is installed in the sliding groove of the lower fixed rail 1. A guide groove 5 is formed on the side of the lower fixed rail 1. An arc-shaped guide block 6 and a limiting block 7 are provided on the inner side of the lower fixed rail 1. The gap between the upper and lower parallel arc-shaped guide blocks 6 serves as an extension of the guide groove 5. A notch 8 communicating with the guide groove 5 is provided on the side of the lower fixed rail 1 opposite the arc-shaped guide block 6. The limiting block 7 is used to restrict the middle guide rail 2. The guide groove 3... The upper sliding rail 3 is equipped with a slider 9. One side of the slide rail 9 extends into the sliding groove of the lower fixed rail 1 to tighten the tension spring 4, and the other side is located outside the lower fixed rail 1. A lever 10 is fixed to the outside of the upper sliding rail 3. When the slide rail is unfolded, the slider 9 abuts against the arc-shaped guide block 6. During the sliding of the upper sliding rail 3, the lever 10 pushes the slider 9 to release the restriction, while the slider 9 limits the lever 10. Under the pulling force of the tension spring 4, the upper sliding rail 3 quickly slides away from the arc-shaped guide block 6.

[0021] In this embodiment, the slider 9 includes a U-shaped locking block 901 and a connecting rod 902 fixed to the bottom of the U-shaped locking block 901. The U-shaped locking block 901 is used to limit the lever 10, and the distal end of the connecting rod 902 is used to tighten the tension spring 4.

[0022] In this embodiment, the connecting rod 902 is offset from the longitudinal symmetry plane of the U-shaped locking block 901.

[0023] In this embodiment, a plug 11 is installed at the far end of the lower fixed rail 1.

[0024] In this embodiment, the plug 11 has a groove 12 on its inner side, and the other end of the tension spring 4 is confined within the groove 12.

[0025] In this embodiment, the limiting block 7 and the arc-shaped guide block 6 are located on the same side of the lower fixed rail 1 and are arranged opposite to each other.

[0026] In this embodiment, the arc-shaped guide block 6 and the limiting block 7 are integrally stamped on the lower fixed rail 1.

[0027] The working principle of this embodiment is as follows.

[0028] Expanded state, such as Figure 2 As shown, at this time, the slider 9 abuts against the arc-shaped guide block 6. Since the connecting rod 902 is deviated from the longitudinal symmetry plane of the U-shaped block 901 and is set close to the inner side of the arc-shaped guide block 6, the slider 9 can be stably positioned on the arc-shaped guide block 6 by the pulling of the tension spring 4.

[0029] During the contraction process, the upper sliding rail 3 is pushed to move towards the end cap 12. During this movement, the lever 10 pushes the slider 9 to release its restriction, while the U-shaped locking block 901 limits the lever 10. Under the tension of the tension spring 4, the upper sliding rail 3 quickly slides away from the arc-shaped guide block 6 until it reaches the end cap 12. Figure 1 The closed state is shown.

[0030] During the unfolding process, the upper sliding rail 3 is pulled away from the side of the plug 11. During this movement, the slider 9 moves to the vicinity of the arc-shaped guide block 6 and releases the restriction on the lever 10. At the same time, the slider 9 is stably positioned on the arc-shaped guide block 6, and the upper sliding rail 3 continues to slide until it reaches the desired position. Figure 2 The unfolded state shown.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An embedded slide rail automatic closing device, characterized in that: The system includes a lower fixed rail, a middle guide rail, and an upper sliding rail. A tension spring is installed in the sliding groove of the lower fixed rail. A guide groove is formed on the side of the lower fixed rail. An arc-shaped guide block and a limiting block are provided on the inner side of the lower fixed rail. The gap between the upper and lower parallel arc-shaped guide blocks extends from the guide groove. A notch communicating with the guide groove is provided on the side of the lower fixed rail opposite the arc-shaped guide block. The limiting block restricts the middle guide rail. A slider is provided on the guide groove. One side of the sliding rail extends into the sliding groove of the lower fixed rail to tighten the tension spring, and the other side is located outside the lower fixed rail. A lever is fixed to the outer side of the upper sliding rail. When the sliding rail is in the unfolded state, the slider abuts against the arc-shaped guide block. During the sliding of the upper sliding rail, the lever pushes the slider to release the restriction, while the slider limits the lever. Under the tension of the tension spring, the upper sliding rail quickly slides away from the arc-shaped guide block.

2. The embedded slide rail automatic closing device according to claim 1, characterized in that: The slider includes a U-shaped locking block and a connecting rod fixed to the bottom of the U-shaped locking block. The U-shaped locking block is used to limit the lever, and the distal end of the connecting rod is used to tighten the tension spring.

3. The embedded slide rail automatic closing device according to claim 2, characterized in that: The connecting rod is offset from the longitudinal symmetry plane of the U-shaped locking block.

4. The embedded slide rail automatic closing device according to claim 1, characterized in that: A plug is installed at the far end of the lower fixed rail.

5. The embedded slide rail automatic closing device according to claim 4, characterized in that: The plug has a groove on its inner side, and the other end of the tension spring is confined within the groove.

6. The embedded slide rail automatic closing device according to claim 1, characterized in that: The limiting block and the arc-shaped guide block are located on the same side of the lower fixed rail and are arranged opposite each other.

7. The embedded slide rail automatic closing device according to claim 6, characterized in that: The arc-shaped guide block and the limiting block are integrally stamped on the lower fixed rail.

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