Slide rail module

Abstract

A first rail is connected to a second rail in a sliding mode, the second rail is connected to a third rail in a sliding mode, the sliding rail module comprises a first auxiliary sliding assembly arranged between the first rail and the second rail, and a plurality of first rolling pieces are arranged on the first auxiliary sliding assembly; the elastic locking assembly is arranged between the third rail and the second rail, and after the second rail slides to a preset position relative to the third rail, the elastic locking assembly is switched from an unlocking state to a locking state through the elastic force of the elastic locking assembly so that the second rail can be locked on the third rail; the elastic unlocking assembly is arranged on the second rail; when the first rail slides relative to the second rail, the first auxiliary sliding assembly is driven to move through rolling friction force generated between the first rail and the first rolling piece, and after the first rail slides to a preset position relative to the second rail, the first auxiliary sliding assembly overcomes the elastic force of the elastic unlocking assembly to drive the elastic unlocking assembly to be switched to the second state. And the elastic unlocking assembly overcomes the elastic force of the elastic locking assembly to drive the elastic unlocking assembly to be switched into an unlocking state.

Description

Technical Field

[0001] This invention belongs to the field of slide rail technology, and particularly relates to a slide rail module. Background Technology

[0002] In modern industrial production and various equipment applications, slide rails are widely used in many scenarios where components need to slide relative to each other due to their sliding and telescopic capabilities. For example, in server racks, slide rails provide convenient pull-out space for server equipment, facilitating the installation, maintenance, and repair of equipment by technicians.

[0003] Server slide rails are commonly categorized into three-section and two-section types. Three-section slide rails have a relatively complex structure, consisting of an inner rail, a middle rail, and an outer rail, with each part connected by a specific method to achieve sliding. However, in actual use, the locking and positioning of the middle rail after it slides out becomes a critical factor affecting performance and user experience. A reliable locking and positioning mechanism is essential after the middle rail slides out; this is a crucial prerequisite for ensuring normal operation and safe use of the equipment. If the middle rail detaches during sliding out, it could lead to serious damage to the server equipment.

[0004] Currently, most server slide rails on the market typically place the locking and positioning mechanism of the middle rail and the subsequent unlocking mechanism on the middle rail and inner rail respectively. The space between the middle rail and inner rail is limited, and the design space is small, which greatly restricts the placement of the locking and positioning mechanism and the unlocking mechanism between the middle rail and inner rail. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide a slide rail module in which the first rail of the slide rail module releases the locking of the elastic locking component on the second rail by means of a first auxiliary sliding component when the first rail slides. The first auxiliary sliding component not only assists the sliding of the first rail, but also drives the elastic locking component to release the locking of the second rail.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A slide rail module includes a first rail, a second rail, and a third rail, wherein the first rail is slidably connected to the second rail, the second rail is slidably connected to the third rail, and further includes: A first auxiliary sliding component is disposed between the first rail and the second rail. The first auxiliary sliding component is provided with a plurality of first rolling elements, and the two sides of the first rolling elements are respectively tactilely connected to the first rail and the second rail. An elastic locking component, disposed between the third rail and the second rail, is configured to switch between an unlocked state and a locked state. After the second rail slides relative to the third rail to a predetermined position, the elastic locking component switches from the unlocked state to the locked state by its own elastic force, thereby locking the second rail onto the third rail. An elastic unlocking component is disposed on the second rail. In the sliding direction of the second rail, a portion of the elastic unlocking component overlaps with the elastic locking component and the first auxiliary sliding component. The elastic unlocking component is configured to switch between a first state and a second state, and the elastic unlocking component switches to the first state by its own elastic force. When the first rail slides relative to the second rail, the rolling friction generated between the first rail and the first rolling element drives the first auxiliary sliding component to move. After the first rail slides relative to the second rail to a predetermined position, the first auxiliary sliding component overcomes the elastic force of the elastic unlocking component and switches to the second state, so that the elastic unlocking component overcomes the elastic force of the elastic locking component and switches to the unlocked state.

[0007] According to an embodiment of the present invention, the direction in which the second rail slides away from the third rail and the first rail slides away from the second rail is defined as the sliding direction, and the direction opposite to the sliding direction is defined as the retraction direction. The elastic locking component includes: Locking groove, provided on the second rail A locking element is movably connected to the third rail; A first elastic element is disposed between the third rail and the locking element, providing the locking element with an elastic force toward the second rail; When in the unlocked state, the locking member elastically abuts against the second rail by the elastic force of the first elastic member; when the second rail slides relative to the third rail toward the sliding direction and drives the locking groove to move to be opposite the locking member, the locking member moves into the locking groove by the elastic force of the first elastic member to switch to the locked state.

[0008] According to an embodiment of the present invention, the elastic unlocking component includes: A sliding groove is provided on the second rail and extends along the sliding direction of the second rail; The unlocking component is slidably connected to the slide groove. One side of the unlocking component is provided with a driving component and the other side is provided with a guiding component. The driving component is located between the second rail and the first rail, and the guiding component is located between the second rail and the third rail. In the sliding direction of the second rail, the guiding component and the driving component are respectively aligned with the locking component and the first auxiliary sliding component. The second elastic element is disposed between the second rail and the unlocking element, and provides the unlocking element with an elastic force to slide in the sliding direction. When the elastic unlocking component is in the first state, the unlocking element abuts against the end of the slide groove in the sliding direction by the elastic force of the second elastic element. When the elastic locking component is in the locked state and the first rail slides relative to the second rail toward the retraction direction, it drives the first auxiliary sliding component to slide toward the retraction direction. When the first auxiliary sliding component slides to abut against the driving component, it drives the driving component to move with the guiding component. The guiding component overcomes the elastic force of the first elastic element and drives the locking component to leave the slide groove to switch to the unlocked state. At the same time, the elastic unlocking component switches to the second state.

[0009] According to one embodiment of the present invention, when the elastic locking component is in the unlocked state, the elastic unlocking component is located on the side of the locking member facing the retraction direction, wherein: When the second rail slides relative to the third rail toward the sliding direction, the end of the guide member on the unlocking member facing the sliding direction abuts against the locking member and overcomes the elastic force to move the locking member away from the second rail until it elastically abuts against the guide member. The guide member, through the reaction force and friction given by the locking member, drives the unlocking member to overcome the elastic force and move relative to the second rail toward the retraction direction. The second elastic member stores energy. When the guide member moves to a misalignment with the locking member, the unlocking member resets through the elastic force of the second elastic member and strikes the end of the slide groove facing the sliding direction. At the same time, the locking member moves into the locking groove through the elastic force of the first elastic member. When the elastic locking component is in the locked state, the elastic unlocking component is located on the side of the locking member facing the sliding direction, wherein: The first auxiliary sliding component slides toward the retraction direction, causing the unlocking member to move. The unlocking member overcomes the elastic force of the first elastic member through the guide component, causing the locking member to leave the lock groove. The first elastic member stores energy, and at the same time, the locking member elastically abuts against the guide component. When the guide component moves toward the retraction direction to a misalignment with the locking member, the locking member moves toward the second rail and impacts the second rail through the elastic force of the first elastic member.

[0010] According to one embodiment of the present invention, one end of the locking member is rotatably connected to the third rail, and the first elastic member provides the locking member with an elastic force to rotate toward the second rail; When the elastic locking component switches from the unlocked state to the locked state, the guide component abuts against the locking member and overcomes the elastic force to drive the locking member away from the second rail and rotate until it elastically abuts against the guide component. The first elastic member stores energy. After the guide component moves to a position that is misaligned with the locking member and the lock groove moves to a position that is opposite to the locking member, the locking member rotates into the lock groove by the elastic force of the first elastic member and impacts one side of the lock groove.

[0011] According to one embodiment of the present invention, the locking member is a rotating member, the third rail is provided with a first mounting member, the first mounting member is provided with a first mounting groove, the first mounting groove is provided with a rotating shaft, the rotating member is connected to the rotating shaft and is rotatably connected to the first mounting member through the rotating shaft; The first elastic element is a torsion spring, which includes an arc-shaped connecting piece and two spring arms disposed on both sides of the arc-shaped connecting piece. The arc-shaped connecting piece is provided with a connecting hole, and the arc-shaped connecting piece is sleeved on the rotating shaft through the connecting hole. The two spring arms elastically abut against the first mounting member and the rotating member, respectively.

[0012] According to one embodiment of the present invention, the locking member is slidably connected to the third rail, and the first elastic member provides the locking member with an elastic force to slide toward the second rail; According to one embodiment of the present invention, the locking member is a sliding member, the third rail is provided with a second mounting member, the second mounting member is provided with a second mounting groove, and the sliding member is slidably connected in the second mounting groove; The first elastic element is a spring, which is disposed in the second mounting groove and located between the sliding element and the second mounting element.

[0013] According to one embodiment of the present invention, the guiding component includes a guiding plate, the guiding plate having a first guiding surface, the guiding plate abutting against the locking member through the first guiding surface to overcome elastic force and guide it to switch to the unlocked state.

[0014] According to one embodiment of the present invention, a connecting member is provided between the driving member and the guiding member, the connecting member passing through and slidably connected in the slide groove, and the driving member and the guiding member are connected to each other through the connecting member.

[0015] According to one embodiment of the present invention, the connecting member is disposed on the guiding member, and the driving member includes a screw, which is threadedly connected to the connecting member, and the unlocking member is restricted within the slide groove by the head of the screw and the guiding member.

[0016] According to one embodiment of the present invention, the connecting component includes at least two studs, and the driving component includes at least two screws, each screw being threadedly connected to each of the studs.

[0017] According to one embodiment of the present invention, the second elastic element is a torsion spring, a fixing part is provided on the second rail, the torsion spring is provided on the fixing part, and one torsion arm of the torsion spring is fixed to the second rail, while the other torsion arm elastically abuts against the unlocking element.

[0018] According to one embodiment of the present invention, the fixing part is a rivet, which passes through the hole of the torsion spring and fixes it to the second rail; The second rail is provided with a fixing hole, one torsion arm of the torsion spring passes through the fixing hole, and the other torsion arm elastically abuts against the drive component.

[0019] According to one embodiment of the present invention, the first rail includes two first edge walls and a first connecting wall disposed between the two first edge walls; the second rail includes two second edge walls and a second connecting wall disposed between the two second edge walls; The first auxiliary sliding assembly includes two mounting portions and a connecting portion disposed between the two mounting portions. The two mounting portions are respectively disposed between the first edge wall and the second edge wall on both sides. Each mounting portion is provided with a plurality of first rolling elements. The two sides of the first rolling elements are respectively tactilely connected to the first edge wall and the second edge wall. The connecting part is located between the first connecting wall and the second connecting wall. After the first rail slides to a predetermined position, the connecting part drives the elastic unlocking component to switch to the second state.

[0020] According to one embodiment of the present invention, the first auxiliary sliding component is a ball nest, and the first rolling element is a first ball; The mounting part is a bracket plate, the connecting part is a connecting plate, the first ball is disposed on the bracket plate, and the bracket plate and the connecting plate extend along the length direction of the second rail.

[0021] According to one embodiment of the present invention, a limiting member is provided on the side of the first rail facing the second rail, and a stop point corresponding to the limiting member is provided on the first auxiliary sliding component; The limiting member limits the first auxiliary sliding component by cooperating with the stop point, and the limiting member abuts against the stop point at least after the first auxiliary sliding component drives the elastic unlocking component to switch to the second state.

[0022] Based on the same concept, the present invention also provides a slide rail module, including a first rail, a second rail, and a third rail, wherein the first rail is slidably connected to the second rail, the second rail is slidably connected to the third rail, and further includes: An elastic locking component, disposed between the third rail and the second rail, is configured to switch between an unlocked state and a locked state. After the second rail slides relative to the third rail to a predetermined position, the elastic locking component switches from the unlocked state to the locked state by its own elastic force, thereby locking the second rail onto the third rail. An elastic unlocking component is disposed on the second rail, and a portion of the structure of the elastic unlocking component overlaps with the elastic locking component in the sliding direction of the second rail; the elastic unlocking component is configured to switch between a first state and a second state, and the elastic unlocking component switches to the first state by its own elastic force; A pusher is disposed on the first rail. In the sliding direction of the second rail, a portion of the structure of the elastic unlocking component overlaps with the pusher. When the first rail slides relative to the second rail, the pusher contacts the elastic unlocking component to overcome its elastic force and push the elastic unlocking component to switch to the second state, so that the elastic unlocking component overcomes the elastic force of the elastic locking component and drives it to switch to the unlocked state.

[0023] According to an embodiment of the present invention, the direction in which the second rail slides away from the third rail and the first rail slides away from the second rail is defined as the sliding direction, and the direction opposite to the sliding direction is defined as the retraction direction. The elastic locking component includes: A locking groove is provided on the second rail; A locking element is movably connected to the third rail; A first elastic element is disposed between the third rail and the locking element, providing the locking element with an elastic force toward the second rail; When in the unlocked state, the locking member elastically abuts against the second rail by the elastic force of the first elastic member; when the second rail slides relative to the third rail toward the sliding direction and drives the locking groove to move to be opposite the locking member, the locking member moves into the locking groove by the elastic force of the first elastic member to switch to the locked state.

[0024] According to an embodiment of the present invention, the elastic unlocking component includes: A sliding groove is provided on the second rail and extends along the sliding direction of the second rail; An unlocking component is slidably connected to the slide groove. The unlocking component includes a driving component, a connecting component, and a guiding component. The connecting component is slidably connected within the slide groove, and its two sides are respectively connected to the driving component and the guiding component. The driving component is located between the second rail and the first rail, and the guiding component is located between the second rail and the third rail. In the sliding direction of the second rail, the guiding component and the driving component coincide with the locking component and the pushing component, respectively. The second elastic element is disposed between the second rail and the unlocking element, and provides the unlocking element with an elastic force to slide in the sliding direction. When the elastic unlocking component is in the first state, the unlocking element abuts against the end of the slide groove in the sliding direction by the elastic force of the second elastic element. When the elastic locking component is in the locked state and the first rail slides relative to the second rail toward the retraction direction, the pusher abuts against the drive component, causing it to move with the guide component. The guide component overcomes the elastic force of the first elastic member, causing the locking component to leave the slide groove to switch to the unlocked state. At the same time, the elastic unlocking component switches to the second state.

[0025] According to one embodiment of the present invention, when the elastic locking component is in the unlocked state, the elastic unlocking component is located on the side of the locking member facing the retraction direction, wherein: When the second rail slides relative to the third rail toward the sliding direction, the end of the guide member on the unlocking member facing the sliding direction abuts against the locking member and overcomes the elastic force to move the locking member away from the second rail until it elastically abuts against the guide member. The guide member, through the reaction force and friction given by the locking member, drives the unlocking member to overcome the elastic force and move relative to the second rail toward the retraction direction. The second elastic member stores energy. When the guide member moves to a misalignment with the locking member, the unlocking member resets through the elastic force of the second elastic member and strikes the end of the slide groove facing the sliding direction. At the same time, the locking member moves into the locking groove through the elastic force of the first elastic member. When the elastic locking component is in the locked state, the elastic unlocking component is located on the side of the locking member facing the sliding direction, wherein: When the first rail slides relative to the second rail toward the retraction direction, the pushing member abuts against the driving member, causing the unlocking member to move. The unlocking member, through the guiding member, overcomes the elastic force of the first elastic member, causing the locking member to leave the lock groove. The first elastic member stores energy, and at the same time, the locking member elastically abuts against the guiding member. When the guiding member moves toward the retraction direction to a misalignment with the locking member, the locking member moves toward the second rail and impacts the second rail through the elastic force of the first elastic member.

[0026] According to one embodiment of the present invention, one end of the locking member is rotatably connected to the third rail, and the first elastic member provides the locking member with an elastic force to rotate toward the second rail; When the elastic locking component switches from the unlocked state to the locked state, the guide component abuts against the locking member and overcomes the elastic force to drive the locking member away from the second rail and rotate until it elastically abuts against the guide component. The first elastic member stores energy. After the guide component moves to a position that is misaligned with the locking member and the lock groove moves to a position that is opposite to the locking member, the locking member rotates into the lock groove by the elastic force of the first elastic member and impacts one side of the lock groove.

[0027] According to one embodiment of the present invention, the guiding component includes a first guiding plate, the first guiding plate having a first guiding surface, the first guiding plate abutting against the locking member through the first guiding surface to overcome elastic force and guide it to switch to the unlocked state.

[0028] According to one embodiment of the present invention, the driving component is a second guide plate, the connecting component is a connecting block, and the connecting block connects the first guide plate and the second guide plate; The second guide plate is provided with a second guide surface, and the first rail abuts against the second guide plate through the pusher to drive the unlocking member to move toward the retraction direction to unlock the locking member; When the locking member is in the locked state, one end of the locking member moves through the locking groove to between the second rail and the first rail, and the second guide plate coincides with one end of the locking member in the sliding direction of the second rail. The distance between the second guide surface and the locking member is less than the distance between the first guide surface and the locking member. During unlocking, the second guide surface first contacts and drives the locking member to rotate, and then the first guide surface contacts and drives the locking member to rotate away from the lock groove.

[0029] According to one embodiment of the present invention, the second elastic element is a spring, which is disposed in the groove and its two ends are respectively connected to the inner wall of the end of the groove facing the retraction direction and the unlocking element.

[0030] Because the present invention adopts the above technical solution, it has the following advantages and positive effects compared with the prior art: 1. The present invention can realize the automatic locking of the second rail. When the second rail slides out to the predetermined position on the third rail, the elastic locking component switches from the unlocked state to the locked state through its own elastic force, so as to lock the second rail on the third rail.

[0031] Simultaneously, automatic unlocking of the second track can be achieved. In one embodiment of the invention, when the first track retracts onto the second track, the first track directly overcomes the elastic force of the elastic unlocking component and switches to the second state, thereby causing the elastic unlocking component to drive the elastic locking component to switch to the unlocked state and unlock the second track. In another embodiment, when the first track retracts onto the second track, the first track slides relative to the second track and drives the first auxiliary sliding component to move through the rolling friction generated between the first rolling member. The first auxiliary sliding component overcomes the elastic force of the elastic unlocking component and switches to the second state, thereby causing the elastic unlocking component to drive the elastic locking component to switch to the unlocked state and unlock the second track. That is to say, when the first track slides, the first auxiliary sliding component is used to release the elastic locking component from locking the second track, so that no additional driving unlocking structure is needed on the first track; the first auxiliary sliding component can be used directly. Thus, the first auxiliary sliding component not only assists the sliding of the first track but also drives the elastic locking component to release the lock on the second track.

[0032] 2. In this invention, when the second track is locked or unlocked by the elastic locking component, the user can obtain sound and vibration feedback through impact to indicate that the second track is locked or unlocked, thereby enhancing the interactivity, quality and user experience of the product.

[0033] Specifically, during locking, before the second rail slides out onto the third rail in the sliding direction to a predetermined position and is locked by the elastic locking component, the end of the guide component on the unlocking component facing the sliding direction first abuts against the locking component and overcomes the elastic force to move the locking component away from the second rail until it elastically abuts against the guide component. The guide component, through the reaction force and friction provided by the locking component, causes the unlocking component to overcome the elastic force and move relative to the second rail in the retraction direction. The second elastic component stores energy. When the guide component moves to a misalignment with the locking component, the unlocking component resets through the elastic force of the second elastic component and strikes the end of the slide groove facing the sliding direction to generate sound and vibration feedback through the impact. At the same time, the locking component moves into the lock groove through the elastic force of the first elastic component.

[0034] When unlocking, the first auxiliary sliding component or pushing component slides in the retraction direction, causing the unlocking component to move. The unlocking component overcomes the elastic force of the first elastic component through the guiding component, causing the locking component to leave the lock groove. The first elastic component stores energy, and at the same time, the locking component elastically abuts against the guiding component. When the guiding component moves in the retraction direction to the point of being misaligned with the locking component, the locking component moves towards the second rail through the elastic force of the first elastic component and impacts the second rail, so as to generate sound and vibration feedback through the impact.

[0035] In other words, the unlocking component of the present invention not only has the function of driving the elastic locking component to unlock, but also has the function of triggering impact feedback. When locked, it emits feedback through its own impact with the slide groove. When unlocked, it can drive the first elastic component to store energy and suddenly release the locking component to impact the second track to emit feedback.

[0036] 3. One end of the locking member of the present invention is rotatably connected to the third rail. The first elastic member provides the locking member with an elastic force to rotate toward the second rail. After the locking groove moves to be opposite to the locking member, the locking member rotates into the locking groove by the elastic force of the first elastic member and hits one side of the locking groove to produce sound and vibration feedback. The impact of the unlocking member and the sliding groove is superimposed, which enhances the sound and vibration feedback when the second rail is locked.

[0037] 4. The unlocking component of the present invention has a driving component on one side and a guiding component on the other side. The driving component is located between the second rail and the first rail, and the guiding component is located between the second rail and the third rail. In other words, the present invention distributes the unlocking component on both sides of the second rail, which reduces the design requirements for space. Because the gap between the first rail, the second rail and the third rail is very small, if the driving component and the guiding component are located on the same side of the second rail, it will greatly increase the design difficulty and increase the risk of interference with other components.

[0038] 5. The first track of the present invention has a limiting member on the side facing the second track, and the first auxiliary sliding component has a stop point corresponding to the limiting member. The limiting member abuts against the stop point at least after the first auxiliary sliding component drives the elastic unlocking component to switch to the second state.

[0039] When the rolling friction between the first auxiliary sliding component and the first rail is insufficient to unlock the elastic locking component, the first rail can directly unlock the elastic locking component through the cooperation of the limiting component and the stop point. This prevents the first rolling component from failing to form an effective rolling connection with the first rail due to wear, impurities, or other reasons, thus reducing the design, manufacturing, and assembly requirements of the first rolling component.

[0040] 6. The first auxiliary sliding component of this invention is a beaded nest, which includes two support plates and a connecting plate. The connecting plate is located between the first and second rails, and the two support plates are located on both sides of the connecting plate. The connecting plate drives the elastic unlocking component to switch to the second state. The connecting plate is relatively thin, which reduces the space occupied between the first and second rails. Attached Figure Description

[0041] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the slide rail module in the fully shortened state in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the second track completely sliding off the third track in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the slide rail module in its fully extended state in Embodiment 1 of the present invention; Figure 4 This is a cross-sectional view of the slide rail module in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the slide rail module in the fully shortened state of Embodiment 1 of the present invention, with the first and second rails hidden. Figure 6 This is a partial schematic diagram of the slide rail module in its fully extended state according to Embodiment 1 of the present invention; Figure 7 This is Embodiment 1 of the present invention. Figure 6 A partial exploded view; Figure 8 This is a schematic diagram of the slide rail module in Embodiment 1 of the present invention in its fully shortened state with the first and second rails hidden. Figure 9 This is a partial exploded view of the third track, rotating component, and torsion spring in Embodiment 1 of the present invention; Figure 10 This is a partial schematic diagram of the first mounting component in Embodiment 1 of the present invention; Figure 11 This is a partial exploded view of the first mounting component, torsion spring, and rotating component in Embodiment 1 of the present invention; Figure 12 This is a schematic diagram of Embodiment 1 of the present invention with the third track and the first track hidden; Figure 13 This is Embodiment 1 of the present invention. Figure 10 A magnified view of a portion of the image; Figure 14 This is Embodiment 1 of the present invention. Figure 10 A partial exploded view; Figure 15 This is a partial exploded view of the guide plate, rotating component, and second track in Embodiment 1 of the present invention; Figure 16This is an exploded view of the slide rail module in the fully shortened state according to Embodiment 1 of the present invention; Figure 17 This is a cross-sectional view of Embodiment 1 of the present invention when the locking component is a rotating component; Figure 18 This is a schematic diagram illustrating how the locking member moves to elastically abut against the guide plate when the slide rail module extends or shortens according to Embodiment 1 of the present invention. Figure 1 ; Figure 19 This is a schematic diagram of Embodiment 1 of the present invention, showing the locking member moving to elastically abut against the guide plate when the slide rail module extends or shortens. Figure 2 ; Figure 20 This is a schematic diagram of the rotating component located in the lock groove according to Embodiment 1 of the present invention; Figure 21 This is a cross-sectional view of the rotating component located in the lock groove in Embodiment 1 of the present invention; Figure 22 This is a schematic diagram of the rotating component in Embodiment 1 of the present invention, showing the first rail retracting into the second rail and the guide plate unlocking. Figure 23 This is a schematic diagram of the limiting member on the first track in Embodiment 1 of the present invention; Figure 24 This is a cross-sectional view of the locking component in Embodiment 1 of the present invention when it is a sliding component; Figure 25 This is a partial exploded view of Embodiment 1 of the present invention when the locking component is a sliding component; Figure 26 This is a schematic diagram of the slide rail module in the fully shortened state in Embodiment 2 of the present invention; Figure 27 This is a schematic diagram of the second track completely sliding off the third track in Embodiment 2 of the present invention; Figure 28 This is a schematic diagram of the slide rail module in its fully extended state in Embodiment 2 of the present invention; Figure 29 This is a cross-sectional view of the slide rail module in Embodiment 2 of the present invention; Figure 30 This is a schematic diagram of the slide rail module in the fully shortened state of Embodiment 2 of the present invention, with the first and second rails hidden. Figure 31 This is a partial schematic diagram of the slide rail module in its fully extended state in Embodiment 2 of the present invention; Figure 32 This is a partially exploded view of the slide rail module in its fully extended state in Embodiment 2 of the present invention; Figure 33 This is a schematic diagram of the slide rail module in Embodiment 2 of the present invention in its fully shortened state with the first and second rails hidden. Figure 34 This is a partial exploded view of the first mounting component, torsion spring, and rotating component in Embodiment 2 of the present invention; Figure 35 This is a partial schematic diagram of the locking element and the second track in Embodiment 2 of the present invention. Figure 1 ; Figure 36 This is a partially exploded view of the locking element and the second track in Embodiment 2 of the present invention; Figure 37 This is a partial schematic diagram of the locking element and the second track in Embodiment 2 of the present invention. Figure 2 ; Figure 38 This is an exploded view of the slide rail module in its fully shortened state in Embodiment 2 of the present invention; Figure 39 This is a cross-sectional view of the rotating component elastically abutting against the second rail in Embodiment 2 of the present invention; Figure 40 This is a schematic diagram of the rotating component moving to elastically abut against the guide plate when the slide rail module extends or shortens in Embodiment 2 of the present invention; Figure 41 This is a schematic diagram showing the movement of the unlocking component to the rotating component when the slide rail module is shortened in Embodiment 2 of the present invention; Figure 42 This is a schematic diagram of the cooperation between the unlocking component and the rotating component in Embodiment 2 of the present invention; Figure 43 This is a schematic diagram of the unlocking component pushing the rotating component away from the lock groove in Embodiment 2 of the present invention; Figure 44 This is a schematic diagram of the first track pushing unlocking component in Embodiment 2 of the present invention.

[0042] Explanation of reference numerals in the attached figures: 1. First rail; 11. First edge wall; 12. First connecting wall; 13. Limiting component; 2. Second rail; 21. Second edge wall; 22. Second connecting wall; 23. Locking groove; 24. Sliding groove; 25. Fixing hole; 26. First locking block; 3. Third rail; 31. Third edge wall; 32. Third connecting wall; 33. Hollowed-out groove; 34. Second locking groove; 4. Bead nest; 41. Support plate; 42. Connecting plate; 43. First ball bearing; 44. Stop point; 51. Rotating component; 52. Torque spring; 521. Spring arm; 522. Arc-shaped 53. Connecting piece; 54. Rotating shaft; 55. First mounting piece; 541. First mounting groove; 56. Sliding piece; 571. Sliding block; 582. Second guide surface; 59. Spring; 50. Second mounting piece; 51. Second mounting groove; 52. Restricting groove; 61. Guide plate; 611. Stud; 612. First guide surface; 613. Third guide surface; 62. Screw; 63. Torsion spring; 64. Rivet; 7. First limiting post; 71. First slot; 8. Second limiting post; 81. Second locking block; 9. Ball bearing; 91. Second ball bearing.

[0043] 10. First rail; 101. First edge wall; 102. First connecting wall; 103. Pushing component; 20. Second rail; 201. Second edge wall; 202. Second connecting wall; 203. Locking groove; 204. Sliding groove; 205. Limiting protrusion; 206. First locking block; 30. Third rail; 301. Third edge wall; 302. Third connecting wall; 303. Hollowed-out groove; 304. Second locking groove; 40. Bead nest; 401. Support plate; 402. Connecting plate; 403. First ball bearing; 501. Rotating component; 502. Torque Force spring; 5021, spring arm; 5022, arc-shaped connecting piece; 503, rotating shaft; 504, mounting part; 5041, mounting groove; 60, unlocking part; 601, first guide plate; 6011, first guide surface; 6012, third guide surface; 602, connecting block; 6021, limiting groove; 603, second guide plate; 6031, second guide surface; 604, spring; 70, first limiting post; 701, first slot; 80, second limiting post; 801, second locking block; 90, ball bar; 901, second ball. Detailed Implementation

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise ratios, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0045] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0046] Example 1 See Figures 1 to 25 The core of this invention is to provide a slide rail module, including a first rail 1, a second rail 2 and a third rail 3, wherein the first rail 1 is slidably connected to the second rail 2 and the second rail 2 is slidably connected to the third rail 3.

[0047] In other words, the present invention is a three-section slide rail, in which the second rail 2 can slide out from the third rail 3, and the first rail 1 can slide out from the second rail 2.

[0048] The direction in which the second rail 2 slides away from the third rail 3 and the first rail 1 slides away from the second rail 2 is defined as the sliding direction, and the direction opposite to the sliding direction is defined as the retraction direction. When the slide rail module of the present invention extends, the second rail 2 slides out onto the third rail 3 in the sliding direction, and the first rail 1 slides out onto the second rail 2 in the sliding direction; when the slide rail module of the present invention shortens, the first rail 1 slides into the second rail 2 in the retraction direction, and the second rail 2 slides into the third rail 3 in the retraction direction.

[0049] The slide rail module of the present invention further includes a first auxiliary sliding component, an elastic locking component, and an elastic unlocking component. The first auxiliary sliding component is disposed between the first rail 1 and the second rail 2, and is used to assist the first rail 1 in sliding relative to the second rail 2. The first auxiliary sliding component is provided with a plurality of first rolling elements, the two sides of which are respectively rolledly connected to the first rail 1 and the second rail 2. When the first rail 1 slides relative to the second rail 2, the rolling friction generated between the first rail 1 and the first rolling elements drives the first auxiliary sliding component to move.

[0050] The elastic locking component is located between the third rail 3 and the second rail 2 and is configured to switch between an unlocked state and a locked state. The elastic unlocking component is located on the second rail 2, and in the sliding direction of the second rail 2, a portion of the elastic unlocking component overlaps with the elastic locking component and the first auxiliary sliding component. The elastic unlocking component is configured to switch between a first state and a second state, and the elastic unlocking component switches to the first state by its own elastic force.

[0051] When the slide rail module extends, the second rail 2 slides out onto the third rail 3 in the sliding direction to a predetermined position. Then, the elastic locking component switches from the unlocked state to the locked state through its own elastic force, thereby locking the second rail 2 onto the third rail 3 and realizing the automatic locking of the second rail 2.

[0052] When the slide rail module is fully extended, the second rail 2 slides out onto the third rail 3 in the sliding direction to the predetermined position, and the first rail 1 slides out onto the second rail 2 in the sliding direction to the predetermined position, achieving the desired result. Figure 3 The state shown.

[0053] When the slide rail module shortens, the first rail 1 slides into the second rail 2 in the retraction direction. The first rail 1 slides relative to the second rail 2, and the rolling friction generated between the first rail 1 and the first rolling element drives the first auxiliary sliding component to move in the retraction direction. After the first rail 1 slides relative to the second rail 2 in the retraction direction to a predetermined position, the first auxiliary sliding component overcomes the elastic force of the elastic unlocking component and switches to the second state, so that the elastic unlocking component overcomes the elastic force of the elastic locking component and switches to the unlocked state. In other words, when the first rail 1 slides, the first auxiliary sliding component unlocks the second rail 2, so that no additional drive unlocking structure is needed on the first rail 1. The first auxiliary sliding component not only assists the sliding of the first rail 1, but also drives the elastic locking component to unlock the second rail 2.

[0054] For details, see Figure 4 The first track 1 includes two first edge walls 11 and a first connecting wall 12 disposed between the two first edge walls 11; the second track 2 includes two second edge walls 21 and a second connecting wall 22 disposed between the two second edge walls 21; the third track 3 includes two third edge walls 31 and a third connecting wall 32 disposed between the two third edge walls 31.

[0055] The first auxiliary sliding assembly includes two mounting parts and a connecting part disposed between the two mounting parts. The two mounting parts are respectively disposed between the first edge wall 11 and the second edge wall 21 on both sides. Each mounting part is provided with a plurality of first rolling elements. The two sides of the first rolling elements are respectively rolledly connected to the first edge wall 11 and the second edge wall 21. The connecting part is disposed between the first connecting wall 12 and the second connecting wall 22. After the first rail 1 slides to a predetermined position, the connecting part drives the elastic unlocking assembly to switch to the second state.

[0056] See Figure 4 In this embodiment, the first auxiliary sliding component is a ball nest 4, the first rolling element is a first ball 43; the mounting part is a bracket plate 41, the connecting part is a connecting plate 42, the first ball 43 is disposed on the bracket plate 41, and the bracket plate 41 and the connecting plate 42 extend along the length direction of the second rail 2, and the bracket plate 41 is provided with a plurality of first balls 43 in sequence along its length direction.

[0057] Since the first ball 43 is connected to the first edge wall 11 and the second edge wall 21 on both sides, when the first rail 1 slides a distance L relative to the second rail 2, the distance that the ball nest 4 moves is L / 2.

[0058] See Figures 6 to 8A second auxiliary sliding assembly is also provided between the second rail 2 and the third rail 3 to assist the second rail 2 in sliding relative to the third rail 3. The second auxiliary sliding assembly is provided with a plurality of second rolling elements, the two sides of which are respectively rolledly connected to the second rail 2 and the third rail 3. When the second rail 2 slides relative to the third rail 3, the rolling friction generated between it and the second rolling elements drives the second auxiliary sliding assembly to move.

[0059] In this embodiment, the second auxiliary sliding component is a ball strip 9, and the second rolling element is a second ball 91. A ball strip 9 is provided between the second edge wall 21 and the third edge wall 31 on both sides of the second rail 2 and the third rail 3, and a plurality of second balls 91 are arranged sequentially along the length of the ball strip 9.

[0060] The elastic locking assembly includes a locking groove 23, a locking member, and a first elastic member. The locking groove 23 is located on the second connecting wall 22 on the second rail 2, the locking member is movably connected to the third rail 3, and the first elastic member is located between the third rail 3 and the locking member, providing the locking member with an elastic force toward the second rail 2.

[0061] When in unlocked state, see Figure 8 , 17 The locking element elastically abuts against the second rail 2 by the elastic force of the first elastic element; see also Figure 20 , 21 When the second rail 2 slides relative to the third rail 3 in the sliding direction and drives the locking groove 23 to move to be opposite the locking member, the locking member moves into the locking groove 23 by the elastic force of the first elastic member to switch to the locked state and lock the second rail 2 on the third rail 3. That is to say, the second rail 2 is restricted in both the sliding direction and the retraction direction by the cooperation of the locking member and the locking groove 23.

[0062] The elastic unlocking component includes a slide groove 24, an unlocking member, and a second elastic member. The slide groove 24 is disposed on the second connecting wall 22 of the second rail 2 and extends along the sliding direction of the second rail 2. The unlocking member is slidably connected to the slide groove 24. The second elastic member is disposed between the second rail 2 and the unlocking member, and provides the unlocking member with an elastic force to slide in the sliding direction. When the elastic unlocking component is in the first state, the unlocking member abuts against the end of the slide groove 24 in the sliding direction by the elastic force of the second elastic member.

[0063] The unlocking component has a driving component on one side and a guiding component on the other side. The driving component is located between the second connecting wall 22 of the second rail 2 and the first connecting wall 12 of the first rail 1. The guiding component is located between the second connecting wall 22 of the second rail 2 and the third connecting wall 32 of the third rail 3. In the sliding direction of the second rail 2, the guiding component and the driving component coincide with the locking component and the bead nest 4, respectively.

[0064] Specifically, the guiding component includes a guide plate 61, which is attached to the second connecting wall 22 of the second rail 2, see [reference]. Figure 15 The guide plate 61 is provided with a first guide surface 612. The guide plate 61 abuts against the locking member through the first guide surface 612 to overcome the elastic force of the first elastic member and guide it to move towards the third rail 3 and away from the lock groove 23, so as to switch to the unlocked state. The first guide surface 612 is an arc surface or a slope surface and faces the retraction direction, so that it can gradually guide the locking member to move towards the third rail 3.

[0065] A connecting component is provided between the driving component and the guide plate 61. The connecting component passes through and is slidably connected in the slide groove 24. The driving component and the guide plate 61 are connected to each other through the connecting component.

[0066] Specifically, the connecting component is disposed on the guide plate 61, and the driving component includes screws 62, which are threadedly connected to the connecting component. The head of the screws 62 and the guide plate 61 constrain the unlocking component within the slide groove 24. The connecting component includes at least two studs 611, and the driving component includes at least two screws 62, each screw 62 being threadedly connected to a respective stud 611. The presence of at least two studs 611 prevents the guide plate 61 from rotating. In this embodiment, the connecting component includes two studs 611, and the driving component includes two screws 62.

[0067] The second elastic element is a torsion spring 63, which is disposed between the second connecting wall 22 of the second rail 2 and the first connecting wall 12 of the first rail 1. A fixing part is provided on the second connecting wall 22 of the second rail 2, and the torsion spring 63 is disposed on the fixing part. One torsion arm of the torsion spring 63 is fixed to the second rail 2, and the other torsion arm elastically abuts against the unlocking element. Specifically, the fixing part is a rivet 64, which passes through the hole in the torsion spring 63 and fixes it to the second rail 2. A fixing hole 25 is provided on the second connecting wall 22 of the second rail 2. One torsion arm of the torsion spring 63 passes through the fixing hole 25, and the other torsion arm is disposed between two screws 62 and elastically abuts against one of the screws 62.

[0068] When the elastic locking component is in the locked state and the first rail 1 slides in the retraction direction relative to the second rail 2, it causes the bead nest 4 to slide in the retraction direction. When the bead nest 4 slides to abut against the screw 62, it causes it to move with the guide plate 61. The guide plate 61 overcomes the elastic force of the first elastic element and causes the locking element to leave the lock groove 23 so that the elastic locking component switches to the unlocked state. At the same time, the elastic unlocking component switches to the second state.

[0069] See Figure 1 , 1618, 19 When the slide rail module is in the fully shortened state, the elastic locking component is in the unlocked state, and the elastic unlocking component is located on the side of the locking member facing the retraction direction. When the slide rail module extends, when the second rail 2 slides relative to the third rail 3 in the sliding direction, the end of the guide plate 61 facing the sliding direction abuts against the locking member and overcomes the elastic force of the first elastic member, causing the locking member to move away from the second rail 2 until it elastically abuts against the guide plate 61. The guide plate 61, through the reaction force given by the locking member and the friction between the guide plate 61 and the locking member, causes the unlocking member to overcome the elastic force of the torsion spring 63 and slide relative to the second rail 2 in the retraction direction. The torsion spring 63 stores energy. When the guide plate 61 moves in the sliding direction to the point of misalignment with the locking member, the unlocking member resets through the elastic force of the torsion spring 63. The stud 611 on the unlocking member strikes the end of the slide groove 24 facing the sliding direction, and at the same time, the locking member moves into the locking groove 23 to lock the second rail 2 through the elastic force of the first elastic member. The stud 611 impacts one end of the slide groove 24, which can provide sound and vibration feedback through impact, indicating to the user that the second track 2 has been locked.

[0070] See Figure 20 , 21 When the slide rail module is fully extended, the elastic locking component is locked, and the elastic unlocking component is located on the side of the locking component facing the sliding direction. When the slide rail module is shortened, the elastic locking component... Figure 18 , 19 22, 23. The first rail 1 slides relative to the second rail 2 in the retracting direction, and the friction with the first ball 43 drives the ball socket 4 to slide in the retracting direction. The connecting plate 42 of the ball socket 4 drives the guide plate 61 to move in the retracting direction through the screw 62. The guide plate 61 overcomes the elastic force of the first elastic element and drives the locking element to leave the lock groove 23. The first elastic element stores energy, and at the same time, the locking element moves away from the second rail 2 until it elastically abuts against the guide plate 61. When the guide plate 61 moves in the retracting direction and is misaligned with the locking element, the locking element moves towards the second rail 2 and impacts the second rail 2 through the elastic force of the first elastic element, so as to emit sound and vibration feedback to indicate to the user that the second rail 2 has been unlocked. It should be noted that although there is a certain time difference between the locking element leaving the lock groove 23 to unlock the second rail 2 and the locking element misaligning with the guide plate 61 to impact the second rail 2, the time delay of the unlocking impact feedback can be ignored because the guide plate 61 is small in size and the sliding speed of the first rail 1 is fast.

[0071] In other words, the present invention can obtain sound and vibration feedback through impact when the second track 2 is locked and unlocked by the elastic locking component, so as to prompt the user that the second track 2 is locked or unlocked, thereby enhancing the interactivity, quality and experience of the product.

[0072] The guide plate 61 of the present invention not only has the function of driving the elastic locking component to unlock, but also has the function of triggering impact feedback. When locked, it emits feedback through its own impact with the slide groove 24. When unlocked, it can drive the first elastic element to store energy and suddenly release the locking element to impact the second track 2 to emit feedback.

[0073] Further, see Figure 15 The guide plate 61 is also provided with a third guide surface 613 at one end facing the sliding direction. When the slide rail module is extended, when the second rail 2 slides relative to the third rail 3 in the sliding direction, the end of the guide plate 61 facing the sliding direction abuts against the locking member and overcomes the elastic force of the first elastic member through the guidance of the third guide surface 613, causing the locking member to move away from the second rail 2 until it elastically abuts against the guide plate 61. The third guide surface 613 can guide the locking member to move onto the guide plate 61. Specifically, the third guide surface 613 can be an inclined surface.

[0074] In one embodiment of the present invention, see Figure 9 , 11 One end of the locking member is rotatably connected to the third rail 3, and the first elastic member provides an elastic force to the locking member to rotate toward the second rail 2. Specifically, the locking member is a rotating member 51, and the third rail 3 is provided with a first mounting member 54. The first mounting member 54 is fixedly installed on the side of the third connecting wall 32 of the third rail 3 away from the second rail 2, and part of the structure of the first mounting member 54 is located in the hollow groove 33 of the third connecting wall 32. The first mounting member 54 is provided with a first mounting groove 541, and a rotating shaft 53 is provided in the first mounting groove 541. The rotating member 51 is connected to the rotating shaft 53 and is rotatably connected to the first mounting member 54 through the rotating shaft 53.

[0075] When the slide rail module extends, the locking groove 23 moves to be opposite the rotating member 51. The rotating member 51 rotates into the locking groove 23 by the elastic force of the first elastic member and hits one side of the locking groove 23 to produce sound and vibration feedback. The impact of the stud 611 and the slide groove 24 is superimposed, which enhances the sound and vibration feedback when the second rail 2 is locked.

[0076] The first elastic element is specifically a torsion spring 52, which includes an arc-shaped connecting piece 522 and two spring arms 521 located on both sides of the arc-shaped connecting piece 522. The arc-shaped connecting piece 522 has a connecting hole and is sleeved on the rotating shaft 53 through the connecting hole. The two spring arms 521 elastically abut against the first mounting member 54 and the rotating member 51, respectively. Of course, in other embodiments, the first elastic element can also be other elastic elements.

[0077] In another embodiment of the invention, see Figure 25 , 26The locking element is slidably connected to the third rail 3, and the first elastic element provides an elastic force to the locking element to slide towards the second rail 2. Specifically, the locking element is a sliding element 55. The third rail 3 is provided with a second mounting element 57, which is fixedly installed on the side of the third connecting wall 32 of the third rail 3 away from the second rail 2, and the second mounting element 57 is opposite to the hollow groove 33 on the third connecting wall 32. The second mounting element 57 is provided with a second mounting groove 571, which is opposite to the hollow groove 33 on the third connecting wall 32. The sliding element 55 passes through the hollow groove 33 and is slidably connected to the second mounting groove 571.

[0078] The second mounting groove 571 has a limiting groove 572 on each side, and the sliding member 55 has a sliding block 551 on each side. The two sliding blocks 551 are respectively located in the two limiting grooves 572 to realize the sliding member 55 slidingly connected in the second mounting groove 571. The sliding member 55 is hollow and has an opening facing the second mounting member 57. The first elastic element is a spring 56, which is located in the second mounting groove 571 and inside the sliding member 55. The two ends of the spring 56 elastically abut against the sliding member 55 and the second mounting member 57, respectively.

[0079] Furthermore, the slider 55 is provided with a second guide surface 552, which is used to cooperate with the guide plate 61. When the slider 55 is located in the locking groove 23, the guide plate 61 abuts against the second guide surface 552 through the first guide surface 612 to overcome the elastic force of the spring 56 and guide and drive the slider 55 to move towards the third rail 3 and away from the locking groove 23. The second guide surface 552 is specifically an inclined surface, and the slider 55 can be moved more smoothly through the first guide surface 612 and the second guide surface 552.

[0080] A limiting member 13 is provided on the side of the first connecting wall 12 of the first rail 1 facing the second rail 2, and a stop point 44 corresponding to the limiting member 13 is provided on the connecting plate 42 of the bead nest 4. The limiting member 13 limits the bead nest 4 by cooperating with the stop point 44, and the limiting member 13 abuts against the stop point 44 at least after the bead nest 4 drives the elastic unlocking component to switch to the second state. When the rolling friction between the bead nest 4 and the first rail 1 is insufficient to drive the elastic unlocking component to unlock the elastic locking component, the first rail 1 can directly drive the bead nest 4 to move by cooperating with the limiting member 13 and the stop point 44 to forcibly unlock the elastic locking component. This prevents the first rolling component from being unable to form an effective rolling connection with the first rail 1 due to wear, impurities, or other reasons, thus preventing the unlocking from being impossible. From another perspective, it also reduces the requirements for the design, manufacturing, and assembly of the first rolling component. At the same time, when the bead nest 4 cannot effectively follow the first rail 1 due to wear, impurities, or other reasons, the first rail 1 can also drive the bead nest 4 to move by cooperating with the limiting member 13 and the stop point 44.

[0081] In this embodiment, the limiting member 13 is integrally formed by stamping the first connecting wall 12 of the first rail 1; the blocking point 44 is integrally formed by stamping the connecting plate 42 of the bead nest 4.

[0082] A first limiting post 7 is provided on each side of the second rail 2 facing the retraction direction. The first limiting post 7 is located between the second connecting wall 22 of the second rail 2 and the third connecting wall 32 of the third rail 3. The first limiting post 7 is fixedly connected to the second connecting wall 22 and slidably connected to the third connecting wall 32. The first limiting post 7 can be made of plastic with a low coefficient of friction, such as POM.

[0083] In this embodiment, a first locking block 26 is integrally formed on the second connecting wall 22 by stamping, and a first locking groove 71 is provided on the first limiting post 7. The first limiting post 7 is locked on the first locking block 26 through the first locking groove 71 to realize the first limiting post 7 and the second connecting wall 22 being fixedly connected.

[0084] A second limiting post 8 is provided on each side of the third rail 3 facing the sliding direction. The second limiting post 8 is located between the second connecting wall 22 of the second rail 2 and the third connecting wall 32 of the third rail 3. The second limiting post 8 is fixedly connected to the third connecting wall 32, and the second limiting post 8 is slidably connected to the second connecting wall 22. The second limiting post 8 can be made of plastic with a low coefficient of friction, such as POM.

[0085] In this embodiment, the third connecting wall 32 is provided with a second slot 34, and the second limiting post 8 is provided with a second locking block 81. The second limiting post 8 is locked in the second slot 34 by the second locking block 81 to realize the second limiting post 8 and the third connecting wall 32 being fixedly connected.

[0086] The beaded bar 9 is positioned between the first limiting post 7 and the second limiting post 8, and the beaded bar 9, the first limiting post 7, and the second limiting post 8 coincide in the sliding direction of the second rail 2. The beaded bar 9 is limited between the second rail 2 and the third rail 3 by the first limiting post 7 and the second limiting post 8. At the same time, after the second rail 2 slides out from the third rail 3, the second rail 2 can be limited on the third rail 3 in the sliding direction by the cooperation of the first limiting post 7, the beaded bar 9, and the second limiting post 8. In this way, when the second rail 2 slides out relative to the third rail 3 and the locking element fails to enter the locking groove 23 due to an accident, the second rail 2 will not slip off the third rail 3. That is to say, the beaded bar 9, the first limiting post 7, and the second limiting post 8 prevent the second rail 2 from slipping off the third rail 3, thereby improving the reliability of the slide rail.

[0087] The unlocking component of this invention has a driving component on one side and a guiding component on the other side. The driving component is located between the second rail 2 and the first rail 1, and the guiding component is located between the second rail 2 and the third rail 3. In other words, this invention distributes the unlocking component on both sides of the second rail 2, which reduces the design requirements for space. Because the gap between the first rail 1, the second rail 2 and the third rail 3 is very small, if the driving component and the guiding component are located on the same side of the second rail 2, it will greatly increase the design difficulty and increase the risk of interference with other components.

[0088] Meanwhile, the present invention places the locking element on the third rail 3, making full use of the spatial advantage of the third rail 3 being away from the second rail 2 without interference from other components, thereby obtaining greater design margin, which is conducive to optimizing the structural layout and allows for increasing the size of the locking element, thus significantly improving the locking strength.

[0089] Furthermore, the first auxiliary sliding component of this invention is a beaded nest 4, which includes two support plates 41 and a connecting plate 42. The connecting plate 42 is located between the first rail 1 and the second rail 2, and the two support plates 41 are located on both sides of the connecting plate 42. The connecting plate 42 drives the elastic unlocking component to switch to the second state. The connecting plate 42 is relatively thin, which reduces the space occupied between the first rail 1 and the second rail 2.

[0090] The working process of this embodiment will be further explained below (taking the rotating part 51 as an example when the locking part is used): When the slide rail module extends from its fully shortened state, the second rail 2 slides relative to the third rail 3 in the sliding direction. The sliding of the second rail 2 causes the guide plate 61 to move synchronously. The end of the guide plate 61 facing the sliding direction abuts against the rotating member 51 and overcomes the elastic force of the torsion spring 52, causing the rotating member 51 to rotate away from the second rail 2 until it elastically abuts against the guide plate 61. The guide plate 61, through the reaction force from the rotating member 51 and the friction between the guide plate and the rotating member 51, causes the unlocking member to overcome the elastic force of the torsion spring 63 and slide relative to the second rail 2 in the retraction direction. The torsion spring 63 stores energy. When the guide plate 61 moves towards the sliding direction and becomes misaligned with the rotating member 51, the unlocking member resets due to the elastic force of the torsion spring 63. The stud 611 on the unlocking member strikes the end of the slide groove 24 facing the sliding direction. Simultaneously, the rotating member 51 rotates to the locking groove 23 due to the elastic force of the torsion spring 52 and strikes one side of the locking groove 23. At this point, the second rail 2 is locked. Then, the first rail 1 slides out relative to the second rail 2 in the sliding direction.

[0091] When the slide rail module shortens from its fully extended state, the first rail 1 slides relative to the second rail 2 in the retraction direction. Through friction with the first ball bearing 43, the ball socket 4 slides in the retraction direction. The connecting plate 42 of the ball socket 4, via screw 62, overcomes the elastic force of the torsion spring 63, causing the guide plate 61 to move in the retraction direction. The guide plate 61 overcomes the elastic force of the torsion spring 52, causing the rotating component 51 to rotate away from the locking groove 23. The torsion spring 52 stores energy, and simultaneously, the rotating component 51 rotates away from the second rail 2 until it elastically abuts against the guide plate 61, thus unlocking the second rail 2. When the guide plate 61 moves in the retraction direction and becomes misaligned with the rotating component 51, the rotating component 51 rotates towards the second rail 2 and impacts it through the elastic force of the torsion spring 52.

[0092] Example 2 See Figures 26 to 44 Another core aspect of this invention is to provide a slide rail module, including a first rail 10, a second rail 20 and a third rail 30, wherein the first rail 10 is slidably connected to the second rail 20 and the second rail 20 is slidably connected to the third rail 30.

[0093] In other words, the present invention is a three-section slide rail, in which the second rail 20 can slide out from the third rail 30, and the first rail 10 can slide out from the second rail 20.

[0094] The direction in which the second rail 20 slides away from the third rail 30 and the first rail 10 slides away from the second rail 20 is defined as the sliding direction, and the direction opposite to the sliding direction is defined as the retraction direction. When the slide rail module of the present invention extends, the second rail 20 slides out onto the third rail 30 in the sliding direction, and the first rail 10 slides out onto the second rail 20 in the sliding direction; when the slide rail module of the present invention shortens, the first rail 10 slides into the second rail 20 in the retraction direction, and the second rail 20 slides into the third rail 30 in the retraction direction.

[0095] See Figure 29 The first track 10 includes two first edge walls 101 and a first connecting wall 102 disposed between the two first edge walls 101; the second track 20 includes two second edge walls 201 and a second connecting wall 202 disposed between the two second edge walls 201; the third track 30 includes two third edge walls 301 and a third connecting wall 302 disposed between the two third edge walls 301.

[0096] A beaded nest 40 is provided between the first rail 10 and the second rail 20 to assist the first rail 10 in sliding relative to the second rail 20. The beaded nest 40 includes two support plates 401 and a connecting plate 402 disposed between the two support plates 401. The two support plates 401 are respectively disposed between the first edge wall 101 and the second edge wall 201 on both sides, and the connecting plate 402 is disposed between the first connecting wall 102 and the second connecting wall 202. A plurality of first balls 403 are sequentially provided along the length of the support plates 401, and the two sides of the first balls 403 are respectively in rolling connection with the first edge wall 101 and the second edge wall 201.

[0097] See Figures 31 to 33 A ball bearing 90 is also provided between the second rail 20 and the third rail 30 to assist the second rail 20 in sliding relative to the third rail 30. Specifically, a ball bearing 90 is provided between the second edge wall 201 and the third edge wall 301 on both sides of the second rail 20 and the third rail 30. The ball bearing 90 has a plurality of second balls 901 arranged sequentially along its length direction. The two sides of the second balls 901 are respectively rolledly connected to the second edge wall 201 and the third edge wall 301.

[0098] The slide rail module also includes an elastic locking component, an elastic unlocking component, and a pusher 103. The elastic locking component is located between the third rail 30 and the second rail 20 and is configured to switch between an unlocked state and a locked state. The elastic unlocking component is located on the second rail 20, and a portion of its structure overlaps with the elastic locking component in the sliding direction of the second rail 20. The elastic unlocking component is configured to switch between a first state and a second state, and it switches to the first state by its own elastic force. The pusher 103 is located on the surface of the first connecting wall 102 of the first rail 10 facing the second connecting wall 202, and the pusher 103 is integrally stamped from the first connecting wall 102. A portion of the structure of the elastic unlocking component overlaps with the pusher 103 in the sliding direction of the second rail 20.

[0099] When the slide rail module extends, the second rail 20 slides out onto the third rail 30 in the sliding direction to a predetermined position. Then, the elastic locking component switches from the unlocked state to the locked state through its own elastic force, thereby locking the second rail 20 onto the third rail 30 and realizing the automatic locking of the second rail 20.

[0100] When the slide rail module is fully extended, the second rail 20 slides out onto the third rail 30 in the sliding direction to the predetermined position, and the first rail 10 slides out onto the second rail 20 in the sliding direction to the predetermined position.

[0101] When the slide rail module shortens, the first rail 10 slides into the second rail 20 in the retracted direction. As the first rail 10 slides relative to the second rail 20, it contacts the elastic unlocking component through the pusher 103 to overcome its elastic force and push the elastic unlocking component to switch to the second state. This allows the elastic unlocking component to overcome the elastic force of the elastic locking component and switch to the unlocked state. In other words, the second rail 20 can be automatically unlocked by sliding the first rail 10 into the second rail 20 in the retracted direction.

[0102] The elastic locking assembly includes a locking groove 203, a locking member, and a first elastic member. The locking groove 203 is disposed on the second connecting wall 202 on the second rail 20, the locking member is movably connected to the third rail 30, and the first elastic member is disposed between the third rail 30 and the locking member, providing the locking member with an elastic force toward the second rail 20.

[0103] See Figure 39 When in the unlocked state, the locking member elastically abuts against the second rail 20 by the elastic force of the first elastic member; when the second rail 20 slides relative to the third rail 30 in the sliding direction and drives the locking groove 203 to move to be opposite the locking member, the locking member moves into the locking groove 203 by the elastic force of the first elastic member to switch to the locked state and lock the second rail 20 on the third rail 30. That is to say, the second rail 20 is restricted in both the sliding direction and the retraction direction by the cooperation of the locking member and the locking groove 203.

[0104] The elastic unlocking assembly includes a slide groove 204, an unlocking member 60, and a second elastic member. The slide groove 204 is disposed on the second connecting wall 202 of the second rail 20 and extends along the sliding direction of the second rail 20. The unlocking member 60 is slidably connected to the slide groove 204. The second elastic member is disposed between the second rail 20 and the unlocking member 60, providing an elastic force to the unlocking member 60 to slide in the sliding direction. When the elastic unlocking assembly is in the first state, the unlocking member 60 abuts against the end of the slide groove 204 facing the sliding direction by the elastic force of the second elastic member.

[0105] The unlocking component 60 includes a driving component, a connecting component, and a guiding component. The connecting component is slidably connected within the slide groove 204, and the driving component and the guiding component are respectively connected to its two sides. The driving component is located between the second rail 20 and the first rail 10, and the guiding component is located between the second rail 20 and the third rail 30. In the sliding direction of the second rail 20, the guiding component and the driving component coincide with the locking component and the pushing component 103, respectively.

[0106] See Figure 36 , 37Specifically, the guiding component includes a first guide plate 601, which is attached to the side of the second connecting wall 202 of the second rail 20 facing the third rail 30. The first guide plate 601 has a first guide surface 6011, which abuts against the locking member to overcome elastic force and guide it to switch to the unlocked state. The first guide surface 6011 is an arc or inclined surface facing the retraction direction, allowing it to gradually guide the locking member towards the third rail 30. The connecting component is specifically a connecting block 602, which is slidably connected within the slide groove 204.

[0107] The second elastic element is a spring 604, which is disposed within the slide groove 204 and its two ends are respectively connected to the inner wall of the end of the slide groove 204 facing the retraction direction and the connecting block 602 on the unlocking member 60. Specifically, a limiting protrusion 205 is provided on the inner wall of the end of the slide groove 204 facing the retraction direction, and a limiting groove 6021 is provided on the connecting block 602. One end of the spring 604 is sleeved on the limiting protrusion 205 and the other end is disposed in the limiting groove 6021. The limiting protrusion 205 and the limiting groove 6021 limit the spring 604.

[0108] When the elastic locking component is in the locked state and the first rail 10 slides relative to the second rail 20 in the retraction direction, the pusher 103 abuts against the drive component, causing it to move with the first guide plate 601. The first guide plate 601 overcomes the elastic force of the first elastic component, causing the locking component to leave the slide groove 204 to switch to the unlocked state. At the same time, the elastic unlocking component switches to the second state.

[0109] When the slide rail module is in its fully retracted state, the elastic locking component is unlocked, and the elastic unlocking component is located on the side of the locking element facing the retraction direction. When the slide rail module is extended, see [link to documentation]. Figure 40 When the second rail 20 slides relative to the third rail 30 in the sliding direction, the end of the first guide plate 601 facing the sliding direction abuts against the locking member and overcomes the elastic force of the first elastic member, causing the locking member to move away from the second rail 20 until it elastically abuts against the first guide plate 601. The first guide plate 601, through the reaction force and friction of the locking member, causes the unlocking member 60 to overcome the elastic force of the spring 604 and move relative to the second rail 20 in the retraction direction. The spring 604 stores energy. When the first guide plate 601 moves to a misalignment with the locking member, the unlocking member 60 resets due to the elastic force of the spring 604. The connecting block 602 on the unlocking member 60 strikes the end of the slide groove 204 facing the sliding direction. At the same time, the locking member moves into the locking groove 203 to lock the second rail 20 due to the elastic force of the first elastic member. See Figure 41 The connecting block 602 impacts one end of the slide groove 204, providing sound and vibration feedback to indicate to the user that the second track 20 has been locked.

[0110] When the slide rail module is in its fully extended state, the elastic locking component is in the locked state, and the elastic unlocking component is located on the side of the locking element facing the sliding direction. When the slide rail module is shortened, see... Figure 42 , 43 The first rail 10 slides relative to the second rail 20 in the retracting direction and abuts against the driving component via the pushing member 103, causing the unlocking member 60 to move. The unlocking member 60, through the first guide plate 601, overcomes the elastic force of the first elastic member, causing the locking member to leave the lock groove 203. The first elastic member stores energy, and simultaneously the locking member moves away from the second rail 20 until it elastically abuts against the first guide plate 601. When the first guide plate 601 moves in the retracting direction and is misaligned with the locking member, the locking member moves towards the second rail 20 through the elastic force of the first elastic member and impacts the second rail 20, providing audible and tactile feedback to indicate to the user that the second rail 20 has been unlocked. It should be noted that although there is a certain time difference between the locking member leaving the lock groove 203 to unlock the second rail 20 and the locking member misaligning with the first guide plate 601 to impact the second rail 20, the time delay of the unlocking impact feedback is negligible due to the small size of the first guide plate 601 and the relatively fast sliding speed of the first rail 10.

[0111] In other words, the present invention can obtain sound and vibration feedback through impact when the second track 20 is locked and unlocked by the elastic locking component, so as to prompt the user that the second track 20 is locked or unlocked, thereby enhancing the interactivity, quality and experience of the product.

[0112] See Figure 42 Furthermore, the first guide plate 601 is provided with a third guide surface 6012 at one end facing the sliding direction. When the slide rail module extends, when the second rail 20 slides relative to the third rail 30 in the sliding direction, the end of the first guide plate 601 facing the sliding direction abuts against the locking member and overcomes the elastic force of the first elastic member through the guidance of the third guide surface 6012, causing the locking member to move away from the second rail 20 and elastically abut against the first guide plate 601. The third guide surface 6012 can guide the locking member to move onto the first guide plate 601. Specifically, the third guide surface 6012 can be an inclined surface.

[0113] In this embodiment, one end of the locking member is rotatably connected to the third rail 30, and the first elastic member provides an elastic force to the locking member to rotate toward the second rail 20. For details, see [link to documentation]. Figure 34The locking element is a rotating element 501. A mounting element 504 is provided on the third rail 30. The mounting element 504 is fixedly installed on the side of the third connecting wall 302 of the third rail 30 away from the second rail 20, and part of the structure of the mounting element 504 is located in the hollow groove 303 of the third connecting wall 302. The mounting element 504 has a mounting groove 5041, and a rotating shaft 503 is provided in the mounting groove 5041. The rotating element 501 is connected to the rotating shaft 503 and rotatably connected to the mounting element 504 through the rotating shaft 503.

[0114] When the slide rail module extends, the locking groove 203 moves to be opposite the rotating member 501. The rotating member 501 rotates into the locking groove 203 by the elastic force of the first elastic member and hits one side of the locking groove 203 to produce sound and vibration feedback. The impact of the stud and the slide groove 204 is superimposed, which enhances the sound and vibration feedback when the second rail 20 is locked.

[0115] The first elastic element is specifically a torsion spring 502. The torsion spring 502 includes an arc-shaped connecting piece 5022 and two spring arms 5021 on both sides of the arc-shaped connecting piece 5022. The arc-shaped connecting piece 5022 is provided with a connecting hole. The arc-shaped connecting piece 5022 is sleeved on the rotating shaft 503 through the connecting hole. The two spring arms 5021 elastically abut against the mounting part 504 and the rotating part 501, respectively.

[0116] Furthermore, the driving component is a second guide plate 603, which is attached to the side of the second connecting wall 202 facing the first rail 10. The connecting block 602 connects the first guide plate 601 and the second guide plate 603. The second guide plate 603 is provided with a second guide surface 6031. The first rail 10 abuts against the second guide plate 603 through the pushing member 103 to drive the unlocking member 60 to move in the retraction direction to unlock the rotating member 501.

[0117] When the rotating member 501 is in the locked state, one end of the rotating member 501 moves through the locking groove 203 to the space between the second rail 20 and the first rail 10, and the second guide plate 603 coincides with one end of the rotating member 501 in the sliding direction of the second rail 20. The distance between the second guide surface 6031 and the rotating member 501 is less than the distance between the first guide surface 6011 and the rotating member 501.

[0118] During unlocking, the second guide surface 6031 first contacts and drives the rotating component 501 to rotate, and then the first guide surface 6011 contacts and drives the rotating component 501 to rotate away from the lock groove 203. By setting the first guide plate 601 and the second guide plate 603 to push the rotating component 501 away from the lock groove 203 in stages, the process of the rotating component 501 disengaging is made smoother and more gradual.

[0119] See Figure 32The second rail 20 is provided with a first limiting post 70 on each side of the end facing the retraction direction. The first limiting post 70 is located between the second connecting wall 202 of the second rail 20 and the third connecting wall 302 of the third rail 30. The first limiting post 70 is fixedly connected to the second connecting wall 202 and slidably connected to the third connecting wall 302. The first limiting post 70 can be made of plastic with a low coefficient of friction, such as POM.

[0120] In this embodiment, a first locking block 206 is integrally formed on the second connecting wall 202 by stamping, and a first locking groove 701 is provided on the first limiting post 70. The first limiting post 70 is locked on the first locking block 206 through the first locking groove 701 to realize the fixed connection between the first limiting post 70 and the second connecting wall 202.

[0121] A second limiting post 80 is provided on each side of the third rail 30 facing the sliding direction. The second limiting post 80 is located between the second connecting wall 202 of the second rail 20 and the third connecting wall 302 of the third rail 30. The second limiting post 80 is fixedly connected to the third connecting wall 302, and the second limiting post 80 is slidably connected to the second connecting wall 202. The second limiting post 80 can be made of plastic with a low coefficient of friction, such as POM.

[0122] In this embodiment, the third connecting wall 302 is provided with a second slot 304, and the second limiting post 80 is provided with a second locking block 801. The second limiting post 80 is locked in the second slot 304 by the second locking block 801 so as to realize the fixed connection between the second limiting post 80 and the third connecting wall 302.

[0123] A beaded bar 90 is positioned between the first limiting post 70 and the second limiting post 80, and the beaded bar 90, the first limiting post 70, and the second limiting post 80 coincide in the sliding direction of the second rail 20. The beaded bar 90 is limited between the second rail 20 and the third rail 30 by the first limiting post 70 and the second limiting post 80. Simultaneously, after the second rail 20 slides out from the third rail 30, the second rail 20 can be limited on the third rail 30 in the sliding direction by the cooperation of the first limiting post 70, the beaded bar 90, and the second limiting post 80. Thus, if the second rail 20 slides out relative to the third rail 30 and the locking element fails to enter the locking groove 203 due to an accident, the second rail 20 will not slip off the third rail 30. In other words, the beaded bar 90, the first limiting post 70, and the second limiting post 80 prevent the second rail 20 from potentially slipping off the third rail 30, improving the reliability of the slide rail.

[0124] The unlocking component 60 of the present invention has a driving component on one side and a guiding component on the other side. The driving component is located between the second rail 20 and the first rail 10, and the guiding component is located between the second rail 20 and the third rail 30. In other words, the present invention distributes the unlocking component 60 on both sides of the second rail 20, which reduces the design requirements for space. Because the gap between the first rail 10, the second rail 20 and the third rail 30 is very small, if the driving component and the guiding component are located on the same side of the second rail 20, it will greatly increase the design difficulty and increase the risk of interference with other components.

[0125] Meanwhile, the present invention places the locking element on the third rail 30, making full use of the spatial advantage of the third rail 30 being away from the second rail 20 without interference from other components, thereby obtaining greater design margin, which is conducive to optimizing the structural layout and allows for increasing the size of the locking element, thus significantly improving the locking strength.

[0126] The working process of this embodiment will be further explained below: When the slide rail module extends from its fully shortened state, the second rail 20 slides relative to the third rail 30 in the sliding direction. The sliding of the second rail 20 causes the first guide plate 601 to move synchronously. The end of the first guide plate 601 facing the sliding direction abuts against the rotating member 501 and overcomes the elastic force of the torsion spring 502, causing the rotating member 501 to rotate away from the second rail 20 until it elastically abuts against the first guide plate 601. The first guide plate 601 is affected by the reaction force given to it by the rotating member 501 and the friction between it and the rotating member 501. The unlocking component 60 overcomes the elastic force of the spring 604 and slides relative to the second rail 20 in the retracting direction. The spring 604 stores energy. When the first guide plate 601 moves in the sliding direction and is misaligned with the rotating component 501, the unlocking component 60 resets due to the elastic force of the spring 604. The connecting block 602 on the unlocking component 60 strikes the end of the slide groove 204 in the sliding direction. At the same time, the rotating component 501 rotates to the locking groove 203 and strikes one side of the locking groove 203 due to the elastic force of the torsion spring 502. At this time, the second rail 20 is locked. Then the first rail 10 slides out relative to the second rail 20 in the sliding direction.

[0127] When the slide rail module shortens from its fully extended state, the first rail 10 slides relative to the second rail 20 in the retraction direction. The first rail 10, through the contact between the pusher 103 and the second guide plate 603, overcomes the elastic force of the spring 604, causing the unlocking member 60 to move. The second guide plate 603 on the unlocking member 60 first contacts and overcomes the elastic force of the torsion spring 502 through the second guide surface 6031, causing the rotating member 501 to rotate. Then, the first guide plate 601 contacts and causes the rotating member 501 to rotate away from the locking groove 203 through the first guide surface 6011. The torsion spring 502 stores energy, and at the same time, the rotating member 501 rotates away from the second rail 20 until it elastically abuts against the first guide plate 601, thus unlocking the second rail 20. When the first guide plate 601 moves in the retraction direction and is misaligned with the rotating member 501, the rotating member 501 rotates towards the second rail 20 and impacts the second rail 20 through the elastic force of the torsion spring 502.

[0128] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A slide rail module, characterized in that, It includes a first rail, a second rail, and a third rail, wherein the first rail is slidably connected to the second rail, the second rail is slidably connected to the third rail, and further includes: A first auxiliary sliding component is disposed between the first rail and the second rail. The first auxiliary sliding component is provided with a plurality of first rolling elements, and the two sides of the first rolling elements are respectively tactilely connected to the first rail and the second rail. An elastic locking component, disposed between the third rail and the second rail, is configured to switch between an unlocked state and a locked state. After the second rail slides relative to the third rail to a predetermined position, the elastic locking component switches from the unlocked state to the locked state by its own elastic force, thereby locking the second rail onto the third rail. An elastic unlocking component is disposed on the second rail. In the sliding direction of the second rail, a portion of the elastic unlocking component overlaps with the elastic locking component and the first auxiliary sliding component. The elastic unlocking component is configured to switch between a first state and a second state, and the elastic unlocking component switches to the first state by its own elastic force. When the first rail slides relative to the second rail, the rolling friction generated between the first rail and the first rolling element drives the first auxiliary sliding component to move. After the first rail slides relative to the second rail to a predetermined position, the first auxiliary sliding component overcomes the elastic force of the elastic unlocking component and switches to the second state, so that the elastic unlocking component overcomes the elastic force of the elastic locking component and switches to the unlocked state.

2. The slide rail module according to claim 1, characterized in that, The direction in which the second rail slides away from the third rail and the first rail slides away from the second rail is defined as the sliding direction, and the direction opposite to the sliding direction is defined as the retraction direction. The elastic locking component includes: A locking groove is provided on the second rail; A locking element is movably connected to the third rail; A first elastic element is disposed between the third rail and the locking element, providing the locking element with an elastic force toward the second rail; When in the unlocked state, the locking member elastically abuts against the second rail by the elastic force of the first elastic member; when the second rail slides relative to the third rail toward the sliding direction and drives the locking groove to move to be opposite the locking member, the locking member moves into the locking groove by the elastic force of the first elastic member to switch to the locked state.

3. The slide rail module according to claim 2, characterized in that, The elastic unlocking component includes: A sliding groove is provided on the second rail and extends along the sliding direction of the second rail; The unlocking component is slidably connected to the slide groove. One side of the unlocking component is provided with a driving component and the other side is provided with a guiding component. The driving component is located between the second rail and the first rail, and the guiding component is located between the second rail and the third rail. In the sliding direction of the second rail, the guiding component and the driving component are respectively aligned with the locking component and the first auxiliary sliding component. The second elastic element is disposed between the second rail and the unlocking element, and provides the unlocking element with an elastic force to slide in the sliding direction. When the elastic unlocking component is in the first state, the unlocking element abuts against the end of the slide groove in the sliding direction by the elastic force of the second elastic element. When the elastic locking component is in the locked state and the first rail slides relative to the second rail toward the retraction direction, it drives the first auxiliary sliding component to slide toward the retraction direction. When the first auxiliary sliding component slides to abut against the driving component, it drives the driving component to move with the guiding component. The guiding component overcomes the elastic force of the first elastic element and drives the locking component to leave the slide groove to switch to the unlocked state. At the same time, the elastic unlocking component switches to the second state.

4. The slide rail module according to claim 3, characterized in that, When the elastic locking component is in the unlocked state, the elastic unlocking component is located on the side of the locking member facing the retraction direction, wherein: When the second rail slides relative to the third rail toward the sliding direction, the end of the guide member on the unlocking member facing the sliding direction abuts against the locking member and overcomes the elastic force to move the locking member away from the second rail until it elastically abuts against the guide member. The guide member, through the reaction force and friction given by the locking member, drives the unlocking member to overcome the elastic force and move relative to the second rail toward the retraction direction. The second elastic member stores energy. When the guide member moves to a misalignment with the locking member, the unlocking member resets through the elastic force of the second elastic member and strikes the end of the slide groove facing the sliding direction. At the same time, the locking member moves into the locking groove through the elastic force of the first elastic member. When the elastic locking component is in the locked state, the elastic unlocking component is located on the side of the locking member facing the sliding direction, wherein: The first auxiliary sliding component slides toward the retraction direction, causing the unlocking member to move. The unlocking member overcomes the elastic force of the first elastic member through the guide component, causing the locking member to leave the lock groove. The first elastic member stores energy, and at the same time, the locking member elastically abuts against the guide component. When the guide component moves toward the retraction direction to a misalignment with the locking member, the locking member moves toward the second rail and impacts the second rail through the elastic force of the first elastic member.

5. The slide rail module according to claim 4, characterized in that, One end of the locking member is rotatably connected to the third rail, and the first elastic member provides the locking member with an elastic force to rotate toward the second rail; When the elastic locking component switches from the unlocked state to the locked state, the guide component abuts against the locking member and overcomes the elastic force to drive the locking member away from the second rail and rotate until it elastically abuts against the guide component. The first elastic member stores energy. After the guide component moves to a position that is misaligned with the locking member and the lock groove moves to a position that is opposite to the locking member, the locking member rotates into the lock groove by the elastic force of the first elastic member and impacts one side of the lock groove.

6. The slide rail module according to claim 5, characterized in that, The locking component is a rotating component. The third rail is provided with a first mounting component. The first mounting component is provided with a first mounting groove. The first mounting groove is provided with a rotating shaft. The rotating component is connected to the rotating shaft and is rotatably connected to the first mounting component through the rotating shaft. The first elastic element is a torsion spring, which includes an arc-shaped connecting piece and two spring arms disposed on both sides of the arc-shaped connecting piece. The arc-shaped connecting piece is provided with a connecting hole, and the arc-shaped connecting piece is sleeved on the rotating shaft through the connecting hole. The two spring arms elastically abut against the first mounting member and the rotating member, respectively.

7. The slide rail module according to claim 4, characterized in that, The locking member is slidably connected to the third rail, and the first elastic member provides the locking member with an elastic force to slide toward the second rail.

8. The slide rail module according to claim 7, characterized in that, The locking element is a sliding element, and the third rail is provided with a second mounting element. The second mounting element is provided with a second mounting groove, and the sliding element is slidably connected in the second mounting groove. The first elastic element is a spring, which is disposed in the second mounting groove and located between the sliding element and the second mounting element.

9. The slide rail module according to claim 3, characterized in that, The guiding component includes a guiding plate with a first guiding surface. The guiding plate abuts against the locking member through the first guiding surface to overcome the elastic force and guide it to switch to the unlocked state.

10. The slide rail module according to claim 9, characterized in that, A connecting component is provided between the driving component and the guiding component. The connecting component passes through and is slidably connected within the slide groove. The driving component and the guiding component are connected to each other through the connecting component.

11. The slide rail module according to claim 10, characterized in that, The connecting component is disposed on the guiding component, and the driving component includes a screw, which is threadedly connected to the connecting component. The unlocking component is restricted within the slide groove by the head of the screw and the guiding component.

12. The slide rail module according to claim 11, characterized in that, The connecting component includes at least two studs, and the driving component includes at least two screws, each screw being threaded onto each of the studs.

13. The slide rail module according to claim 3, characterized in that, The second elastic element is a torsion spring. A fixing part is provided on the second rail. The torsion spring is provided on the fixing part, and one torsion arm of the torsion spring is fixed to the second rail, while the other torsion arm elastically abuts against the unlocking element.

14. The slide rail module according to claim 13, characterized in that, The fixing part is a rivet, which passes through the hole of the torsion spring and fixes it to the second rail; The second rail is provided with a fixing hole, one torsion arm of the torsion spring passes through the fixing hole, and the other torsion arm elastically abuts against the drive component.

15. The slide rail module according to claim 1, characterized in that, The first track includes two first edge walls and a first connecting wall disposed between the two first edge walls; the second track includes two second edge walls and a second connecting wall disposed between the two second edge walls; The first auxiliary sliding assembly includes two mounting portions and a connecting portion disposed between the two mounting portions. The two mounting portions are respectively disposed between the first edge wall and the second edge wall on both sides. Each mounting portion is provided with a plurality of first rolling elements. The two sides of the first rolling elements are respectively tactilely connected to the first edge wall and the second edge wall. The connecting part is located between the first connecting wall and the second connecting wall. After the first rail slides to a predetermined position, the connecting part drives the elastic unlocking component to switch to the second state.

16. The slide rail module according to claim 15, characterized in that, The first auxiliary sliding component is a ball nest, and the first rolling element is a first ball; The mounting part is a bracket plate, the connecting part is a connecting plate, the first ball is disposed on the bracket plate, and the bracket plate and the connecting plate extend along the length direction of the second rail.

17. The slide rail module according to claim 1, characterized in that, A limiting member is provided on the side of the first rail facing the second rail, and a stop point corresponding to the limiting member is provided on the first auxiliary sliding component; The limiting member limits the first auxiliary sliding component by cooperating with the stop point, and the limiting member abuts against the stop point at least after the first auxiliary sliding component drives the elastic unlocking component to switch to the second state.

18. A slide rail module, characterized in that, It includes a first rail, a second rail, and a third rail, wherein the first rail is slidably connected to the second rail, the second rail is slidably connected to the third rail, and further includes: An elastic locking component, disposed between the third rail and the second rail, is configured to switch between an unlocked state and a locked state. After the second rail slides relative to the third rail to a predetermined position, the elastic locking component switches from the unlocked state to the locked state by its own elastic force, thereby locking the second rail onto the third rail. An elastic unlocking component is disposed on the second rail, and a portion of the structure of the elastic unlocking component overlaps with the elastic locking component in the sliding direction of the second rail; the elastic unlocking component is configured to switch between a first state and a second state, and the elastic unlocking component switches to the first state by its own elastic force; A pusher is disposed on the first rail. In the sliding direction of the second rail, a portion of the structure of the elastic unlocking component overlaps with the pusher. When the first rail slides relative to the second rail, the pusher contacts the elastic unlocking component to overcome its elastic force and push the elastic unlocking component to switch to the second state, so that the elastic unlocking component overcomes the elastic force of the elastic locking component and drives it to switch to the unlocked state.

19. The slide rail module according to claim 18, characterized in that, The direction in which the second rail slides away from the third rail and the first rail slides away from the second rail is defined as the sliding direction, and the direction opposite to the sliding direction is defined as the retraction direction. The elastic locking component includes: A locking groove is provided on the second rail; A locking element is movably connected to the third rail; A first elastic element is disposed between the third rail and the locking element, providing the locking element with an elastic force toward the second rail; When in the unlocked state, the locking member elastically abuts against the second rail by the elastic force of the first elastic member; when the second rail slides relative to the third rail toward the sliding direction and drives the locking groove to move to be opposite the locking member, the locking member moves into the locking groove by the elastic force of the first elastic member to switch to the locked state.

20. The slide rail module according to claim 19, characterized in that, The elastic unlocking component includes: A sliding groove is provided on the second rail and extends along the sliding direction of the second rail; An unlocking component is slidably connected to the slide groove. The unlocking component includes a driving component, a connecting component, and a guiding component. The connecting component is slidably connected within the slide groove, and its two sides are respectively connected to the driving component and the guiding component. The driving component is located between the second rail and the first rail, and the guiding component is located between the second rail and the third rail. In the sliding direction of the second rail, the guiding component and the driving component coincide with the locking component and the pushing component, respectively. The second elastic element is disposed between the second rail and the unlocking element, and provides the unlocking element with an elastic force to slide in the sliding direction. When the elastic unlocking component is in the first state, the unlocking element abuts against the end of the slide groove in the sliding direction by the elastic force of the second elastic element. When the elastic locking component is in the locked state and the first rail slides relative to the second rail toward the retraction direction, the pusher abuts against the drive component, causing it to move with the guide component. The guide component overcomes the elastic force of the first elastic member, causing the locking component to leave the slide groove to switch to the unlocked state. At the same time, the elastic unlocking component switches to the second state.

21. The slide rail module according to claim 20, characterized in that, When the elastic locking component is in the unlocked state, the elastic unlocking component is located on the side of the locking member facing the retraction direction, wherein: When the second rail slides relative to the third rail toward the sliding direction, the end of the guide member on the unlocking member facing the sliding direction abuts against the locking member and overcomes the elastic force to move the locking member away from the second rail until it elastically abuts against the guide member. The guide member, through the reaction force and friction given by the locking member, drives the unlocking member to overcome the elastic force and move relative to the second rail toward the retraction direction. The second elastic member stores energy. When the guide member moves to a misalignment with the locking member, the unlocking member resets through the elastic force of the second elastic member and strikes the end of the slide groove facing the sliding direction. At the same time, the locking member moves into the locking groove through the elastic force of the first elastic member. When the elastic locking component is in the locked state, the elastic unlocking component is located on the side of the locking member facing the sliding direction, wherein: When the first rail slides relative to the second rail toward the retraction direction, the pushing member abuts against the driving member, causing the unlocking member to move. The unlocking member, through the guiding member, overcomes the elastic force of the first elastic member, causing the locking member to leave the lock groove. The first elastic member stores energy, and at the same time, the locking member elastically abuts against the guiding member. When the guiding member moves toward the retraction direction to a misalignment with the locking member, the locking member moves toward the second rail and impacts the second rail through the elastic force of the first elastic member.

22. The slide rail module according to claim 21, characterized in that, One end of the locking member is rotatably connected to the third rail, and the first elastic member provides the locking member with an elastic force to rotate toward the second rail; When the elastic locking component switches from the unlocked state to the locked state, the guide component abuts against the locking member and overcomes the elastic force to drive the locking member away from the second rail and rotate until it elastically abuts against the guide component. The first elastic member stores energy. After the guide component moves to a position that is misaligned with the locking member and the lock groove moves to a position that is opposite to the locking member, the locking member rotates into the lock groove by the elastic force of the first elastic member and impacts one side of the lock groove.

23. The slide rail module according to claim 20, characterized in that, The guiding component includes a first guiding plate with a first guiding surface. The first guiding plate abuts against the locking member through the first guiding surface to overcome the elastic force and guide it to switch to the unlocked state.

24. The slide rail module according to claim 23, characterized in that, The driving component is a second guide plate, and the connecting component is a connecting block, which connects the first guide plate and the second guide plate. The second guide plate is provided with a second guide surface, and the first rail abuts against the second guide plate through the pusher to drive the unlocking member to move toward the retraction direction to unlock the locking member; When the locking member is in the locked state, one end of the locking member moves through the locking groove to between the second rail and the first rail, and the second guide plate coincides with one end of the locking member in the sliding direction of the second rail. The distance between the second guide surface and the locking member is less than the distance between the first guide surface and the locking member. During unlocking, the second guide surface first contacts and drives the locking member to rotate, and then the first guide surface contacts and drives the locking member to rotate away from the lock groove.

25. The slide rail module according to claim 20, characterized in that, The second elastic element is a spring, which is disposed in the groove and its two ends are respectively connected to the inner wall of the groove facing the retraction direction and the unlocking element.

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