Pull-out locking device of detachable sliding rail

Abstract

The utility model relates to a pull-out locking device of a detachable sliding rail, which comprises an inner rail and a middle rail, and the inner rail is connected onto the middle rail in a sliding manner; a push rod and a pull rod which do reciprocating motion in the length direction of the inner rail are arranged on the inner rail, and the push rod is fixedly connected with the pull rod; a pair of sliding blocks sliding in the width direction of the inner rail is arranged on the inner rail, one sliding block abuts against the push rod, and the other sliding block abuts against the end of the pull rod. A pair of rotating blocks is rotationally connected to the inner rail, and the two rotating blocks abut against the two sliding blocks correspondingly; an inner-middle locking piece is fixed on the middle rail, and in the locking state, the rotating block and the inner-middle locking piece are connected in a clamped mode, so that the sliding rail has the advantages that the inner rail and the middle rail are rapidly locked and unlocked, and maintenance work of the sliding rail is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of slide rail components, and in particular to a pull-out locking device for a detachable slide rail. Background Technology

[0002] A drawer slide is a hardware component that connects the cabinet body and the drawer, ensuring the drawer moves smoothly in and out of the cabinet. The quality and performance of the drawer slide directly affect the smoothness of the drawer's movement and its load-bearing capacity.

[0003] Slide rails inevitably suffer damage and dust accumulation during use, requiring regular maintenance and upkeep. Currently, the inner and outer rails of slide rails are locked together by spring clips. Users need to pry open the spring clips on the back of the slide rail to remove the inner rail from the slide rail. However, the complex spring clip mechanism has low reliability and, due to its complexity, makes maintenance and replacement inconvenient.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model discloses a pull-out locking device for a detachable slide rail.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A pull-out locking device for a detachable slide rail includes an inner rail and a middle rail, the inner rail being slidably connected to the middle rail; the inner rail is provided with a push rod and a pull rod that reciprocate along the length of the inner rail, the push rod and the pull rod being fixedly connected; the inner rail is provided with a pair of sliders that slide along the width of the inner rail, one slider abutting against the push rod, and the other slider abutting against the end of the pull rod; a pair of rotating blocks are rotatably connected to the inner rail, the two rotating blocks abutting against the two sliders respectively; an inner locking member is fixed on the middle rail, and when in the locked state, the rotating blocks and the inner locking member are engaged.

[0008] Furthermore, the inward end of the push rod is provided with an inclined inner wall, which abuts against the bottom of the outer slider.

[0009] Furthermore, the inward end of the pull rod is provided with an inclined inner wall 71, which abuts against the bottom of the inner slider.

[0010] Furthermore, the inner wall 72 is provided at the outward end of the pull rod, and a window is opened on the inner rail, with the inner wall 72 located at the window.

[0011] Furthermore, the slider has an elliptical cross-section, a groove in the middle of the slider, the groove being parallel to the wide side of the inner rail, and a rivet inserted into the groove, which is riveted to the inner rail to connect the slider and the inner rail.

[0012] Furthermore, a second rivet is inserted into the rotating block, the second rivet is riveted to the inner rail, and the rotating block rotates about the second rivet as an axis.

[0013] Furthermore, the rotating block is provided with an inner wall 61. When the inner rail slides inward and approaches the limit position, the inner wall 61 of the inner rotating block contacts the inner locking member, driving the rotating block to rotate.

[0014] Furthermore, the rotating block is provided with an inner wall 62, which is located next to the inner wall 61. When in the locked state, the inner locking element is engaged in the gap formed between the inner walls 62 of the two rotating blocks.

[0015] Furthermore, the rotating block is provided with an inner wall 63, which is located on the side opposite to the inner wall 62, and the inner wall 63 abuts against the slider.

[0016] Furthermore, a torsion spring is installed in the inner rail, and the torsion spring is disposed between the two rotating blocks.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. When the inner and middle rails are locked, the inner locking element is engaged in the notch formed by the two rotating blocks. When the inner rail needs to be disassembled, pull the lever. The lever drives the inner slider to move, and the slider then drives the corresponding rotating block to rotate, releasing the restriction of the inner locking element. The inner rail can continue to move along its length. When the slide rail needs to be closed, press the push rod. The push rod moves and squeezes the outer slider. The slider pushes the outer rotating block to rotate and disengage from the locked position. The inner rail can then be inserted into the middle rail, realizing quick locking and unlocking of the inner and middle rails, which facilitates the maintenance of the slide rail.

[0019] 2. When the push rod moves, it reciprocates along the length of the slide rail (X-axis direction), and one of the sliders moves along the inclined inner wall of the slide rail in the width direction (Y-axis direction). Similarly, the inner wall of the pull rod also drives the other slider to move in the Y-axis direction, ensuring that the push rod and pull rod drive the slider to move in the designed direction.

[0020] 3. The torsion spring rebounds when no external force is applied, causing the two rotating blocks to return to their initial positions. Attached Figure Description

[0021] Figure 1 This is an exploded structural diagram of the pull-out locking device for a detachable slide rail.

[0022] Figure 2 This is a schematic diagram of the rotating block.

[0023] Figure 3 This is a schematic diagram of the structure when the pull-out locking device of the detachable slide rail is locked.

[0024] Figure 4 This is a schematic diagram showing the structure of the pull-out locking device for the detachable slide rail when the inner rail is unlocked and pulled out.

[0025] Figure 5 This is a schematic diagram showing the structure when the pull-out locking device of the detachable slide rail is reinstalled into the inner rail.

[0026] In the diagram: 1. Inner rail; 11. Pressing block; 111. Push rod; 112. Inner wall 81; 12. Pull rod; 121. Inner wall 71; 122. Inner wall 72; 123. Tension spring; 13. Window; 14. Slider; 141. Slide groove; 142. Rivet 1; 15. Rotating block; 151. Inner wall 61; 152. Inner wall 62; 153. Inner wall 63; 154. Rivet 2; 2. Middle rail; 21. Middle rail retainer; 22. Inner locking component. Detailed Implementation

[0027] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0029] Example:

[0030] A pull-out locking device for a detachable slide rail, such as Figure 1 As shown, it includes an inner rail 1 and a middle rail 2, with the inner rail 1 slidably connected to the middle rail 2. A middle rail retainer 21 is provided between the inner rail 1 and the middle rail 2 to reduce the frictional resistance of the inner rail 1 sliding.

[0031] like Figure 1 As shown, a pressing block 11, a push rod 111, and a pull rod 12 are movably connected to the inner rail 1. The pressing block 11 is installed at the outward-facing end of the inner rail 1. The push rod 111 and the pull rod 12 are installed in the inner rail 1, parallel to the length direction of the inner rail 1. The end of the push rod 111 is fixed to the pressing block 11 by rivets, and the push rod 111 and the pull rod 12 are also fixed by rivets. A tension spring 123 is provided between the pull rod 12 and the inner rail 1, and the pull rod 12 is reset by the rebound of the tension spring 123.

[0032] like Figure 1 As shown, the inward-facing end of the lever 12 is provided with an inclined inner wall 71 121, and the outward-facing end of the lever 12 is provided with an inner wall 72 122. A window 13 is opened on the inner rail 1, and the inner wall 72 122 is located at the window 13. When unlocking the inner rail 1, the user presses the inner wall 72 122 at the window 13 to pull the lever 12.

[0033] like Figure 1 As shown, the inward-facing end of the push rod 111 is provided with an inclined inner wall 112.

[0034] like Figure 1 As shown, a pair of sliders 14 are provided on the inner rail 1, which slide along the width direction of the inner rail 1. The bottom of the outer slider 14 is abutted by the inner wall 112, and the bottom of the inner slider 14 is abutted by the inner wall 121. Thus, the push rod 111 and the pull rod 12 reciprocate in the X-axis direction, driving the slider 14 to reciprocate in the Y-axis direction.

[0035] The slider 14 has an elliptical cross-section and a groove 141 in the middle. A rivet 142 is inserted into the groove 141 and the tail end of the rivet 142 is fixed to the inner rail 1. The combination of the groove 141 and the rivet limits the sliding distance of the slider 14.

[0036] like Figure 1 and Figure 2 As shown, a pair of rotating blocks 15 are rotatably connected to the inner rail 1. The pair of rotating blocks 15 are arranged symmetrically, and the two rotating blocks 15 abut against the two sliders 14 respectively. When the sliders move up and down, the rotating blocks 15 also rotate accordingly. A second rivet 154 is inserted into the rotating block 15, and the tail end of the second rivet 154 is riveted to the inner rail 1. The rotating block 15 rotates about the second rivet 154 as an axis.

[0037] like Figure 2 As shown, the rotating block 15 is provided with inner wall 61 151, inner wall 62 152, and inner wall 63 153. Inner wall 61 151 is located at the tip of the rotating block 15, inner wall 62 152 is located beside inner wall 61 151, and inner wall 63 153 is located on the side opposite to inner wall 62 152. Figure 2 and Figure 3As shown, a gap is formed between the inner walls 152 of the two rotating blocks 15. The rotating blocks 15 abut against the slider 14 through the inner wall 153.

[0038] like Figure 1 and Figure 3 As shown, an inner locking member 22 is fixed on the middle rail 2, and the inner locking member 22 is located at the end of the middle rail 2. When in the locked state, the inner locking member 22 is engaged in the notch formed between the inner walls of the two rotating blocks 15 15 2.

[0039] Specific work process:

[0040] like Figure 3 As shown, the inner rail 1 slides forward. When it reaches the limit position, the inner wall of the rotating block 15 will contact the inner locking piece 22 and rotate. Then the inner locking piece 22 will be locked into the gap formed by the inner walls of the two rotating blocks 15. At this time, the inner rail 1 and the middle rail 2 are completely locked and cannot be pulled out or closed.

[0041] like Figure 4 As shown, when the inner rail 1 needs to be disassembled, press the inner wall 122 at window 13 and pull the lever 12. The sliding block of the curved wall 11 of the lever 12 contacts the rotating block 15, causing the rotating block 15 to rotate around the rivet 154. This causes the wall 62 on the rotating block 15 to separate from the inner locking piece 22 on the middle rail 2. The inner rail 1 can continue to move laterally along the X-axis until the middle rail 2 is removed.

[0042] like Figure 5 As shown, when the inner rail 1 is reinstalled, the pressing block 11 at the end of the slide rail is pressed to bend the wall. The pressing block 11 drives the push rod 111 to move laterally in the closing direction along the X-axis. The tail end of the push rod 111 pushes the outer slider 14 forward. The outer slider 14 pushes the inner wall 153 of the rotating block 15, causing the rotating block 15 to rotate around the rivet 154 and disengage from the inner locking piece 22 on the middle rail 2. The inner rail 1 can continue to close. After unlocking, the pressing block 11 is released. The pressing block 11 will return to its original position under the force of the tension spring 123, and the rotating block 15 will also return to its original position under the force of the torsion spring.

[0043] 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.

[0044] 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 pull-out locking device for a detachable slide rail, characterized in that: It includes an inner rail and a middle rail, wherein the inner rail is slidably connected to the middle rail; The inner rail is provided with a push rod and a pull rod that reciprocate along the length of the inner rail, and the push rod and pull rod are fixedly connected. The inner rail is provided with a pair of sliders that slide along the width direction of the inner rail, one slider abutting against the push rod and the other slider abutting against the end of the pull rod; A pair of rotating blocks are rotatably connected to the inner rail, and the two rotating blocks abut against the two sliders respectively; An inner locking component is fixed on the central rail. When in the locked state, the rotating block and the inner locking component engage.

2. The pull-out locking device for a detachable slide rail according to claim 1, characterized in that: The push rod has an inclined inner wall at its inward end, which abuts against the bottom of the outer slider.

3. The pull-out locking device for a detachable slide rail according to claim 2, characterized in that: The inward end of the pull rod is provided with an inclined inner wall 71, which abuts against the bottom of the inner slider.

4. The pull-out locking device for a detachable slide rail according to claim 3, characterized in that: The inner wall 72 is provided at the outward end of the pull rod, and a window is opened on the inner rail. The inner wall 72 is located at the window.

5. The pull-out locking device for a detachable slide rail according to claim 4, characterized in that: The slider has an elliptical cross-section and a groove in the middle. The groove is parallel to the wide side of the inner rail. A rivet is inserted into the groove and is riveted to the inner rail to connect the slider and the inner rail.

6. The pull-out locking device for a detachable slide rail according to claim 5, characterized in that: A second rivet is inserted into the rotating block, and the second rivet is riveted to the inner rail. The rotating block rotates about the second rivet as an axis.

7. The pull-out locking device for a detachable slide rail according to claim 6, characterized in that: The rotating block is provided with an inner wall 61. When the inner rail slides inward and approaches the limit position, the inner wall 61 of the inner rotating block contacts the inner locking member, driving the rotating block to rotate.

8. The pull-out locking device for a detachable slide rail according to claim 7, characterized in that: The rotating block is provided with an inner wall 62, which is located next to the inner wall 61. When it is in the locked state, the locking member inside is engaged in the gap formed between the inner walls 62 of the two rotating blocks.

9. The pull-out locking device for a detachable slide rail according to claim 8, characterized in that: The rotating block is provided with an inner wall 63, which is located on the side opposite to the inner wall 62, and the inner wall 63 abuts against the slider.

10. The pull-out locking device for a detachable slide rail according to claim 9, characterized in that: A torsion spring is installed in the inner rail, and the torsion spring is disposed between the two rotating blocks.

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