A type of press-rebound damping slide rail

Abstract

This invention discloses a press-to-rebound damping slide rail, belonging to the field of slide rail technology. The press-to-rebound damping slide rail of this invention includes a slide rail assembly and a press-to-rebound damping device. The slide rail assembly includes a fixed rail and a movable rail. The gearbox of the press-to-rebound damping device is equipped with a transmission gear and a clutch mechanism that mesh with a rack on the movable rail. In the first position, the gearbox has a rebound spring and a self-closing spring stretched and stored energy, and the gearbox is locked in the base. In the first position, the trigger part of the trigger transmission block is pushed by the trigger plate on the movable rail, causing the gearbox to unlock and rebound to the second position. The clutch mechanism locks the reverse rotation of the transmission gear and drives the rack and movable rail to rebound and move together. This invention organically combines the press-to-rebound mechanism and the damping closing mechanism, ensuring that the stability of their cooperation is not reduced by factors such as installation errors, making assembly simpler and more convenient, and guaranteeing product consistency.

Description

Technical Field

[0001] This invention relates to a slide rail assembly, and more specifically, to a press-rebound damping slide rail. Background Technology

[0002] To improve the ease and safety of opening and closing drawer slides in furniture, cabinets, and drawers, many functional accessories have emerged on the market for these slides. Common accessories include damping devices and push-to-rebound devices. A damping device stores energy when the slide is open and automatically and slowly pulls it back to the closed position after it has closed to a certain extent, enabling a soft closing of drawers and other pull-out furniture. A push-to-rebound device stores energy when the slide is closed and provides space for pressing to unlock; pressing on the drawer or other pull-out furniture unlocks it and allows it to automatically spring open.

[0003] Based on the working principles of the damping device and the press-and-rebound device, to simultaneously achieve damping closure and press-and-rebound functions on the slide rail, the damping device and the press-and-rebound device need to be structurally and functionally stably coordinated. Chinese Patent No. ZL202110996044.4 discloses a "Rebound Device for Damped Closing Slide Rail and Damped Closing-Press-and-Rebound Slide Rail," with an authorization announcement date of April 25, 2023. The rebound device for the damped closing slide rail in this application includes a housing, a striker head, a sliding seat, a trigger unlocking component, an energy accumulator, and a locking rod. During the advance of the rebound device, the push mechanism, in cooperation with the striker head, stores energy in the rebound device, while simultaneously reserving space for the slide rail's damping closure. During the press-and-rebound process of the rebound device, the striker head pushes open the stop of the trigger unlocking component, unlocking and retracting the sliding seat, causing the striker head to return to its original position. The advance and press-and-rebound actions of the rebound device are stably connected, achieving a smooth transition with the damper. However, the aforementioned rebound device and damping device are independent of each other and are installed independently on the slide rail. Due to factors such as installation and processing errors, it is usually necessary to adjust the relative positions of the rebound device and damping device on the slide rail to ensure that they function stably. This increases the assembly process, and the stability of the damping closure and press rebound functions is not easy to guarantee, which is not conducive to product consistency. Summary of the Invention

[0004] 1. The technical problem that the invention aims to solve

[0005] The purpose of this invention is to provide a press-rebound damping slide rail to solve the problems of poor stability in the coordination of press-rebound and damping closure functions in existing press-rebound damping slide rails. The technical solution of this invention cleverly utilizes the coordination of the transmission gear and clutch mechanism within the gearbox, as well as the coordination between the gearbox and the self-closing tension spring seat, to achieve the conversion between press-rebound elastic energy storage / release and damping closure elastic energy storage / release. During the press-rebound process, the transmission gear can drive the rack on the movable rail to rebound together, while the self-closing tension spring seat can move with the gearbox towards the proximal end of the self-closing damping frame without obstructing the press-rebound function. In the initial stage of slide rail closure, elastic energy storage for both press-rebound and damping closure can be completed simultaneously, and the forward and reverse rotation of the transmission gear allows the slide rail to be freely pushed and pulled. In the later stage of slide rail closure, the damping closure mechanism can automatically drive the slide rail to close. By organically combining the press-rebound mechanism and the damping closure mechanism, the coordination stability of the two is not reduced due to installation errors or other factors, making assembly simpler and more convenient, and ensuring product consistency.

[0006] 2. Technical Solution

[0007] To achieve the above objectives, the technical solution provided by the present invention is as follows:

[0008] The present invention provides a press-rebound damping slide rail, comprising a slide rail assembly and a press-rebound damping device. The slide rail assembly includes a fixed rail and a movable rail that can slide relative to the fixed rail. The movable rail is provided with a rack, a trigger plate and a self-closing pin.

[0009] The press-and-rebound damping device includes a base, a self-closing damping frame, a self-closing tension spring seat, a self-closing tension spring, a damper, a self-closing locking head, a gearbox, a trigger transmission block, and a rebound tension spring. The base and the self-closing damping frame are mounted on a fixed rail. The gearbox is slidably mounted inside the base along the sliding direction of the rail. The rebound tension spring is located between the gearbox and the base. The trigger transmission block is located inside the base, and one end of the trigger transmission block has a trigger part that cooperates with a trigger plate. The gearbox has a transmission mechanism that meshes with a rack. The gear and a clutch mechanism for switching the bidirectional and unidirectional rotation of the transmission gear; the self-closing tension spring seat is slidably disposed in the self-closing damping frame along the sliding direction of the slide rail, and one end of the self-closing tension spring seat abuts against the gearbox, one end of the self-closing tension spring is connected to the self-closing tension spring seat, and the other end of the self-closing tension spring is connected to the self-closing clasp, the damper is disposed in the self-closing damping frame, and the damper is connected to the self-closing clasp, and the self-closing clasp can engage or disengage with the self-closing pin in the stretched state of the damper;

[0010] The gearbox has a first position and a second position within the base. In the first position, the rebound spring is stretched and stores energy, and the gearbox is locked within the base. The clutch mechanism releases the transmission gear, allowing it to rotate in both directions. Simultaneously, the self-closing spring seat is located at the distal end of the self-closing damping frame, allowing the self-closing spring to stretch and store energy. In the first position, the triggering part of the triggering transmission block is pushed by the trigger plate on the movable rail, causing the gearbox to unlock and rebound towards the second position. During the process of the gearbox disengaging from the first position and moving towards the second position, the clutch mechanism locks the reverse rotation of the transmission gear and drives the rack and movable rail to rebound and move together. Simultaneously, the self-closing spring seat moves with the gearbox towards the proximal end of the self-closing damping frame.

[0011] Furthermore, the transmission gear is mounted on a one-way mechanism, and the transmission gear can only rotate in the forward direction relative to the one-way mechanism. The clutch mechanism cooperates with the one-way mechanism. At the first position, the clutch mechanism disengages from the one-way mechanism so that the transmission gear can rotate in both directions. During the process of the gearbox disengaging from the first position and moving to the second position, the clutch mechanism engages with the one-way mechanism so that the transmission gear can only rotate in the forward direction.

[0012] Furthermore, the one-way mechanism is a one-way bearing, the transmission gear is mounted on the rotating shaft via the one-way bearing, a stop gear is fixedly mounted at the lower end of the rotating shaft, the gearbox is provided with a swingable clutch arm, the clutch arm is provided with serrations that can mesh with the stop gear, at the first position, the clutch arm is disengaged from the stop gear; during the process of the gearbox disengaging from the first position and moving to the second position, the clutch arm meshes with the stop gear.

[0013] Furthermore, one end of the clutch arm is rotatably mounted inside the gearbox via a swing shaft, and the other end of the clutch arm is provided with a sliding pin that can move within a track groove in the base. The track groove has a straight groove section and an arc-shaped guide groove and a snap-fit ​​groove located at the distal end of the straight groove section. A trigger pin is also provided on one side of the clutch arm. A synchronous trigger block is provided at the distal end of the trigger transmission block. The synchronous trigger block has a rebound unlocking part, and the rebound unlocking part has a pushing inclined surface that can cooperate with the trigger pin. In the gearbox at the first position... During movement, the sliding pin deflects to one side from the straight groove section through the arc-shaped guide groove, causing the clutch arm to disengage from the stop gear, and the sliding pin engages in the engagement groove to lock the gearbox in the first position; in the first position, the trigger part of the trigger transmission block is pushed by the trigger plate on the movable rail to move the rebound unlocking part to the far end, the pushing inclined surface pushes the trigger pin to deflect the clutch arm towards the stop gear, causing the sliding pin to disengage from the engagement groove and enter the straight groove section to unlock, while the clutch arm engages with the stop gear.

[0014] Furthermore, the synchronous trigger block and the trigger transmission block are separately arranged. The synchronous trigger block is provided with a trigger extension arm that abuts against the trigger transmission block. A first return spring is also provided between the synchronous trigger block and the base, and a second return spring is also provided between the trigger transmission block and the base. One end of the synchronous trigger block is also provided with a toggle groove. The base is provided with a synchronous rotating shaft. The synchronous rotating shaft is provided with a protrusion that can be inserted into the toggle groove. The synchronous rotating shaft is connected to a synchronous rotating shaft in another set of press rebound damping slide rails through a synchronous rod.

[0015] Furthermore, the self-closing damping frame is fixed to one side of the base. The proximal end of the self-closing damping frame has a guide portion with guide ribs. The proximal end of the guide ribs has a corner. The self-closing latch is connected to the self-closing tension spring and damper via a self-closing slider. The self-closing latch is rotatably mounted on the self-closing slider. The self-closing latch has a latch groove for engaging with the self-closing pin, a guide groove for sliding with the guide ribs, and a corner groove for engaging with the corner. When the movable rail is pulled from the closed state... During the opening process, the self-closing pin engages with the locking head groove and drives the self-closing locking head to move towards the corner. When the self-closing locking head moves to the corner, it is rotated by the corner groove, causing the self-closing pin to separate from the locking head groove. At the same time, the corner groove of the self-closing locking head engages with the corner. During the closing process of the movable rail from the open state, when the self-closing pin touches the self-closing locking head, the self-closing locking head rotates and disengages from the corner to unlock. At the same time, the self-closing pin engages with the locking head groove and moves together with the self-closing pin towards the closing direction of the slide rail.

[0016] Furthermore, the self-closing tension spring seat has an abutting part that abuts against the gearbox, and a buffer spring sheet that cooperates with the gearbox at a second position is provided between the gearbox and the base.

[0017] Furthermore, the base is provided with a rotating wheel, one end of the rebound spring is connected to the gearbox, and the other end passes around the rotating wheel and is connected to the rebound spring seat. The base is provided with at least two levels of slots for engaging with the rebound spring seat, and the rebound force is adjusted by changing the position of the rebound spring seat on the base.

[0018] Furthermore, the base is mounted on a fixed rail via a base, the base is provided with several adjustment holes, the base is provided with several buckles that can slide in the corresponding adjustment holes, an adjuster is rotatably provided on the base, one side of the adjuster is provided with a spiral groove, and the base is provided with a boss that cooperates with the spiral groove. By rotating the adjuster, the front and rear position of the base on the base is changed, so as to adjust the pressing gap of the movable rail.

[0019] Furthermore, the trigger transmission block is provided with a conversion handle at one end near the trigger part, and the base has an abutment surface on the side near the trigger part. The conversion handle has a lock position and an unlock position that can be rotated and switched. In the lock position, the conversion handle abuts against the abutment surface to eliminate the movement space of the trigger transmission block in the pressing gap; in the unlock position, the conversion handle disengages from the abutment surface so that the trigger transmission block can be pressed normally.

[0020] 3. Beneficial effects

[0021] Compared with existing known technologies, the technical solution provided by this invention has the following significant advantages:

[0022] (1) A press-rebound damping slide rail of the present invention includes a slide rail assembly and a press-rebound damping device. The slide rail assembly includes a fixed rail and a movable rail that can slide relative to the fixed rail. The movable rail is provided with a rack, a trigger plate, and a self-closing pin. The press-rebound damping device includes a base, a self-closing damping frame, a self-closing tension spring seat, a self-closing tension spring, a damper, a self-closing chuck, a gearbox, a trigger transmission block, and a rebound tension spring. The gearbox is provided with a transmission gear that meshes with the rack and a clutch mechanism for switching the bidirectional and unidirectional rotation of the transmission gear. The gearbox has a first position and a second position in the base. In the first position, the rebound tension spring is stretched and stores energy, and the gearbox is locked in the base. The clutch mechanism releases the transmission gear so that the transmission gear can rotate in both directions. At the same time, the self-closing tension spring seat is located at the far end of the self-closing damping frame so that the self-closing tension spring is stretched and stores energy. In the first position, the trigger part of the trigger transmission block is pushed by the trigger plate on the movable rail to cause the gearbox to unlock and rebound to the second position. During the process of the gearbox disengaging from the first position and moving to the second position... In this design, the clutch mechanism locks the reverse rotation of the transmission gear, causing the rack and movable rail to rebound and move together. Simultaneously, the self-closing tension spring seat moves with the gearbox towards the near end of the self-closing damping frame. By cleverly utilizing the cooperation between the transmission gear and the clutch mechanism within the gearbox, as well as the cooperation between the gearbox and the self-closing tension spring seat, the conversion between press-to-rebound elastic energy storage / release and damping-closure elastic energy storage / release is achieved. During the press-to-rebound process, the transmission gear can drive the rack on the movable rail to rebound together, while the self-closing tension spring seat can move with the gearbox towards the near end of the self-closing damping frame without obstructing the press-to-rebound function. At the initial stage of slide rail closure, both press-to-rebound and damping-closure elastic energy storage can be completed simultaneously, and the forward and reverse rotation of the transmission gear allows the slide rail to be freely pushed and pulled. At the later stage of slide rail closure, the damping-closure mechanism automatically drives the slide rail to close. By organically combining the press-to-rebound mechanism and the damping-closure mechanism, the stability of their cooperation is not reduced by installation errors or other factors, making assembly simpler and more convenient, and ensuring product consistency.

[0023] (2) A press-rebound damping slide rail of the present invention has a transmission gear mounted on a one-way mechanism, and the transmission gear can only rotate in the forward direction relative to the one-way mechanism. The clutch mechanism cooperates with the one-way mechanism. At the first position, the clutch mechanism disengages from the one-way mechanism so that the transmission gear can rotate in both directions. During the process of the gearbox disengaging from the first position and moving to the second position, the clutch mechanism engages with the one-way mechanism so that the transmission gear can only rotate in the forward direction. By adopting the above-mentioned clutch mechanism and one-way mechanism design, the transmission gear can freely switch between forward and reverse rotation and one-way rotation. Under the condition that the slide rail is normally opened and closed, the elastic energy storage of press-rebound and damping closure can be achieved by the movement of the gearbox, and the cooperation is stable and reliable.

[0024] (3) The present invention provides a press-rebound damping slide rail, wherein the one-way mechanism is a one-way bearing, the transmission gear is mounted on the rotating shaft through the one-way bearing, the lower end of the rotating shaft is fixedly mounted with a stop gear, the gearbox is provided with a swingable clutch arm, the clutch arm is provided with saw teeth that can mesh with the stop gear, at the first position, the clutch arm disengages from the stop gear; during the process of the gearbox disengaging from the first position and moving to the second position, the clutch arm meshes with the stop gear; the one-way bearing is used to realize the one-way rotation of the transmission gear, the structure is simple and compact, and the clutch arm and the stop gear can be used to lock or unlock the rotating shaft, thereby allowing the transmission gear to switch between forward and reverse rotation and one-way rotation, the structure is simple in design, and it is convenient to manufacture and assemble.

[0025] (4) A press-rebound damping slide rail of the present invention has a clutch arm, one end of which is rotatably mounted in a gearbox via a swing shaft, and the other end of which is provided with a sliding pin that can move in a track groove in the base. The track groove has a straight groove section and an arc-shaped guide groove and a snap-fit ​​groove located at the far end of the straight groove section. A trigger pin is also provided on one side of the clutch arm, and a synchronous trigger block is provided at the far end of the trigger transmission block. The synchronous trigger block has a rebound unlocking part, and the rebound unlocking part has a pushing inclined surface that can cooperate with the trigger pin. When the gearbox moves to the first position, the sliding pin swings to one side from the straight groove section through the arc-shaped guide groove, causing the clutch arm to disengage from the stop gear, and The sliding pin engages with the engagement groove to lock the gearbox in the first position. In the first position, the triggering part of the triggering block is pushed by the trigger plate on the movable rail, causing the rebound unlocking part to move to the far end. The pushing inclined surface pushes the trigger pin, causing the clutch arm to swing towards the stop gear, causing the sliding pin to disengage from the engagement groove and enter the straight groove section to unlock. At the same time, the clutch arm meshes with the stop gear. The engagement or disengagement of the clutch arm with the stop gear is achieved through the cooperation of the track groove and the clutch arm. The pushing inclined surface on the rebound unlocking part causes the clutch arm to swing to unlock and rebound. The structure is simple and ingenious, easy to assemble and manufacture, and the press-to-rebound trigger is stable and reliable.

[0026] (5) A press-rebound damping slide rail of the present invention has a synchronous trigger block and a trigger transmission block separately set. The synchronous trigger block is provided with a trigger extension arm that abuts against the trigger transmission block. A first reset spring is also provided between the synchronous trigger block and the base, and a second reset spring is also provided between the trigger transmission block and the base. One end of the synchronous trigger block is also provided with a toggle groove. The base is provided with a synchronous rotating shaft. The synchronous rotating shaft is provided with a protrusion that can be inserted into the toggle groove. The synchronous rotating shaft is connected to the synchronous rotating shaft in another set of press-rebound damping slide rails through a synchronous rod. By using the synchronous trigger block and the synchronous rotating shaft in cooperation, the synchronous action of the two sets of slide rails can be realized, so that the synchronous unlocking and rebound of the two sets of slide rails can be realized no matter which side is pressed, thus avoiding jamming due to asynchronous unlocking on both sides.

[0027] (6) The present invention provides a press-rebound damping slide rail, wherein the self-closing latch and the guide rib are fitted with a corner groove and a corner structure. By utilizing the eccentric effect of the latch groove and the rotation center of the self-closing latch, the self-closing latch automatically swings when it moves to the corner, thereby realizing the engagement or separation of the self-closing latch and the self-closing pin, as well as the locking or unlocking of the self-closing latch and the guide rib. The structure is simple and the conversion is stable.

[0028] (7) A press-rebound damping slide rail of the present invention has an abutting part on its self-closing tension spring seat that abuts against the gearbox, and a buffer spring sheet that cooperates with the gearbox and the base at a second position is provided, which can reduce the collision noise generated by the rebound and improve the product quality.

[0029] (8) A press-rebound damping slide rail of the present invention has a rotating wheel on its base, one end of the rebound spring is connected to the gearbox, and the other end passes around the rotating wheel and is connected to the rebound spring seat. The base has at least two levels of slots for engaging with the rebound spring seat. The rebound force can be adjusted by changing the position of the rebound spring seat on the base. The slide rail rebound force can be flexibly adjusted as needed to meet the rebound requirements of different applications.

[0030] (9) A press-rebound damping slide rail of the present invention has a base mounted on a fixed rail via a base, and an adjuster is provided between the base and the base to adjust the pressing gap of the movable rail, so as to conveniently adjust the pressing gap and eliminate the influence of slide rail installation error.

[0031] (10) A press-rebound damping slide rail of the present invention has a conversion handle at one end of the trigger transmission block near the trigger part, which can limit the slide rail from being accidentally triggered and causing it to bounce out, such as during handling, transportation, accidental collision and other non-subjective pressing situations; when the conversion handle is used to limit the pressing function, the slide rail can be pulled open or closed normally, so it can be used as a normal damping slide rail; that is to say, the press-rebound damping slide rail has both a rebound function and a damping self-closing function, which can meet two usage scenarios and can be switched freely. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a press-rebound damping slide rail according to the present invention at one angle;

[0033] Figure 2 This is a schematic diagram of the overall structure of a press-rebound damping slide rail according to the present invention from another angle;

[0034] Figure 3 This is a schematic diagram of the overall disassembled structure of a press-rebound damping slide rail according to the present invention;

[0035] Figure 4 This is a schematic diagram of the mounting structure of the rack, trigger plate, and self-closing pin on the movable rail in this invention.

[0036] Figure 5 This is a schematic diagram of the pressing rebound damping device in this invention;

[0037] Figure 6 This is a schematic diagram of the press-rebound damping device in this invention (with the top cover omitted);

[0038] Figure 7 This is a schematic diagram of the press-rebound damping device in this invention (omitting the top cover and gearbox top cover plate);

[0039] Figure 8 This is a schematic diagram of the overall disassembled structure of the press-rebound damping device in this invention;

[0040] Figure 9 This is a schematic diagram of the internal fit relationship of the base of the press-rebound damping device in this invention;

[0041] Figure 10 for Figure 9 A schematic diagram of the internal fit and structure of the base of the press-rebound damping device;

[0042] Figure 11 This is a schematic diagram of the overall structure of the gearbox in this invention;

[0043] Figure 12 This is a schematic diagram of the disassembled structure of the gearbox in this invention;

[0044] Figure 13 This is a schematic diagram of the engagement structure between the transmission gear and the clutch arm inside the gearbox in this invention;

[0045] Figure 14 This is a schematic diagram of the engagement structure between the clutch arm and the stop gear in this invention;

[0046] Figure 15 This is a schematic diagram of the disassembled structure of the self-closing damping module in this invention;

[0047] Figure 16(a) is a schematic diagram of the self-closing latch in the self-closing damping module of the present invention in the state of engagement with the self-closing pin.

[0048] Figure 16(b) is a schematic diagram of the self-closing latch in the self-closing damping module of the present invention being in a state of separation from the self-closing pin.

[0049] Figure 17 This is a schematic diagram of the internal structure of the base in this invention;

[0050] Figure 18 This is a schematic diagram of the back structure of the base in this invention;

[0051] Figure 19(a) is a schematic diagram of the engagement state of the transmission gear and the clutch arm when the gearbox is in the first position in this invention;

[0052] Figure 19(b) is a schematic diagram of the press-to-unlock state when the gearbox is in the first position in this invention;

[0053] Figure 19(c) is a schematic diagram of the engagement state of the transmission gear and the clutch arm when the gearbox is in the second position in this invention;

[0054] Figure 20(a) is a schematic diagram of the component positions of the press-rebound damping device of the present invention in the press-unlock state;

[0055] Figure 20(b) is a schematic diagram of the component positions of the press-rebound damping device of the present invention in the unlocked rebound state;

[0056] Figure 20(c) is a schematic diagram of the self-closing latch and the self-closing pin of the press rebound damping device of the present invention after it is released;

[0057] Figure 21(a) is a schematic diagram of the component positions of the pressing rebound damping device of the present invention in the initial closed state of the slide rail;

[0058] Figure 21(b) is a schematic diagram of the position of the component of the press rebound damping device of the present invention when the slide rail is closed and the gearbox is locked;

[0059] Figure 21(c) is a schematic diagram of the pressing rebound damping device of the present invention in the engagement state of the locking head and the pin after the slide rail is closed;

[0060] Figure 21(d) is a schematic diagram of the component position of the press rebound damping device of the present invention in the fully closed state of the slide rail;

[0061] Figure 22 This is a schematic diagram showing the different position states of the conversion handle in a press-rebound damping slide rail according to the present invention;

[0062] Figure 23 This is a schematic diagram of the synchronous transmission structure of a press-rebound damping slide rail according to the present invention.

[0063] Explanation of the labels in the diagram:

[0064] 1. Fixed rail; 2. Movable rail; 2-1. Rack and pinion holder; 2-2. Rack; 2-3. Trigger plate; 2-4. Self-closing pin; 3. Intermediate rail; 4. Base; 4-1. Adjustment hole; 4-2. Positioning plate; 5. Base; 5-1. Buckle; 5-2. Slot; 5-3. Rail groove; 5-3a. Straight groove section; 5-3b. Arc-shaped guide groove; 5-3c. Snap-fit ​​groove; 5-4. First buffer spring; 5 -5. Mounting shaft; 5-6. Boss; 5-7. Abutment surface; 6. Top cover; 7. Rebound spring seat; 8. Adjuster; 9. Synchronizing rod; 10. Self-closing damping frame; 10-1. Guide part; 10-2. Guide rib; 10-2a. Corner; 10-3. Damper mounting groove; 10-4. Spring seat slide groove; 11. Self-closing spring seat; 11-1. Abutment part; 12. Self-closing spring; 13. Damper; 14. 15. Self-closing slider; 15-1. Self-closing latch; 15-2. Latch groove; 15-3. Corner groove; 16. Trigger transmission block; 16-1. Trigger part; 17. Synchronous trigger block; 17-1. Rebound unlocking part; 17-2. Pushing inclined surface; 17-3. Trigger extension arm; 18. Synchronous rotating shaft; 18-1. Protruding tongue; 19. First return spring; 20. Housing; 20-1. Second buffer spring. ; 21. Upper cover plate; 22. Transmission gear; 23. Rebound spring; 24. Rotating wheel; 25. Shift handle; 26. Second return spring; 27. One-way bearing; 28. Lower cover plate; 28-1. Waist-shaped hole; 29. ​​Stop gear; 30. Rotating shaft; 31. Clutch arm; 31a. Sawtooth; 31-1. Swing shaft; 31-2. Actuating pin; 31-3. Sliding pin; A. Gearbox; W. Pressing gap. Detailed Implementation

[0065] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments.

[0066] [Example]

[0067] Combination Figures 1 to 8As shown, this embodiment of a press-rebound damping slide rail includes a slide rail assembly and a press-rebound damping device. The slide rail assembly includes a fixed rail 1 and a movable rail 2 that can slide relative to the fixed rail 1. For a three-section slide rail, an intermediate rail 3 may also be provided between the fixed rail 1 and the movable rail 2. The other structures of the slide rail assembly are similar to those of existing slide rails. The difference is that the movable rail 2 is provided with a rack 2-2, a trigger plate 2-3, and a self-closing pin 2-4. The rack 2-2 can be mounted on the movable rail 2 through a rack fixing seat 2-1. The rack fixing seat 2-1 can be an L-shaped sheet metal part, with one side fixed to one side of the movable rail 2. The rack 2-2 is fixedly mounted on the rack fixing seat 2-1, and the extension direction of the rack 2-2 is the sliding direction of the slide rail. The self-closing pin 2-4 can be fixed to the proximal end of the rack fixing seat 2-1, and the trigger plate 2-3 is fixed to the proximal end of the movable rail 2. The relative positions of rack 2-2, self-closing pin 2-4, and trigger plate 2-3 on the moving rail 2 can be referenced. Figure 4As shown. The press-and-rebound damping device includes a base 5, a self-closing damping frame 10, a self-closing tension spring seat 11, a self-closing tension spring 12, a damper 13, a self-closing latch 15, a gearbox A, a trigger transmission block 16, and a rebound tension spring 23. The base 5 and the self-closing damping frame 10 are mounted on the fixed rail 1. The base 5 and the self-closing damping frame 10 can be two independent components or an integral structure. The gearbox A is slidably mounted inside the base 5 along the sliding direction of the slide rail. The rebound tension spring 23 is located between the gearbox A and the base 5 to provide the slide rail rebound force. The trigger transmission block 16 is located inside the base 5. At one end of the trigger transmission block 16, there is a trigger part 16-1 that cooperates with the trigger plate 2-3. There is a pressing gap W between the trigger part 16-1 and the base 5. When the slide rail is closed, pressing the movable rail 2 causes the trigger plate 2-3 to drive the trigger part 16-1 to move. The system includes a transmission gear 22 that meshes with the rack 2-2 and a clutch mechanism for switching between bidirectional and unidirectional rotation of the transmission gear 22. In other words, the transmission gear 22 has two operating states: bidirectional and unidirectional rotation. In the bidirectional rotation state, the movable rail 2 can be freely opened or closed. At this time, the rack 2-2 moves, and the transmission gear 22 rotates, which in turn moves the gearbox A. In the unidirectional rotation state, i.e., the movable rail 2 rebounds, the transmission gear 22 cannot rotate in the opposite direction (counterclockwise). After the gearbox A is unlocked by pressing the trigger part 16-1, the rebound spring 23 pulls the gearbox A to rebound. Since the transmission gear 22 cannot rotate counterclockwise at this time, it will cause the rack 2-2 and the movable rail 2 to rebound together. After the movable rail 2 springs open, since the transmission gear 22 can rotate unidirectionally, it can continue to open the movable rail 2.The self-closing tension spring seat 11 is slidably disposed within the self-closing damping frame 10 along the sliding direction of the slide rail. One end of the self-closing tension spring seat 11 abuts against the gearbox A, and one end of the self-closing tension spring 12 is connected to the self-closing tension spring seat 11. The other end of the self-closing tension spring 12 is connected to the self-closing locking head 15. That is, the self-closing tension spring seat 11 can move together with the gearbox A. During the rebound process of the gearbox A, the self-closing tension spring seat 11 also moves together with the gearbox A. This is equivalent to the self-closing tension spring 12 being in its shortest state, with minimal tension on the movable rail 2, and will not affect the rebound force of the movable rail 2. The damper 13 is disposed within the self-closing damping frame 10 and is connected to the self-closing locking head 15. The damper 13 is used to prevent the self-closing tension spring from moving too far. Spring 12 acts as a buffer during the self-closing process of the movable rail 2, allowing the movable rail 2 to close slowly. The self-closing latch 15 can engage or disengage with the self-closing pin 2-4 when the damper 13 is stretched. That is, during the opening process of the movable rail 2, the self-closing pin 2-4 pulls the self-closing latch 15 to move together, causing the damper 13 to be stretched. After the damper 13 is stretched, the self-closing pin 2-4 separates from the self-closing latch 15, and the self-closing latch 15 stays in the position where it is separated from the self-closing pin 2-4. During the self-closing process of the movable rail 2, the self-closing pin 2-4 engages with the self-closing latch 15, and at the same time, the self-closing latch 15 is unlocked. The self-closing spring 12 and the damper 13 work together to pull the self-closing latch 15 back.

[0068] Gearbox A has a first position and a second position within the base 5. In the first position, the rebound spring 23 is stretched and stores energy, and gearbox A is locked within the base 5. The clutch mechanism releases the transmission gear 22 so that the transmission gear 22 can rotate in both directions. At the same time, the self-closing spring seat 11 is at the far end of the self-closing damping frame 10 so that the self-closing spring 12 is stretched and stores energy (see the state shown in Figure 20(a)). In the first position, the trigger part 16-1 of the trigger transmission block 16 is pushed by the trigger piece 2-3 on the movable rail 2, causing gearbox A to unlock and rebound to the second position. During the process of gearbox A disengaging from the first position and moving to the second position, the clutch mechanism locks the reverse rotation of the transmission gear 22 and drives the rack 2-2 and the movable rail 2 to rebound and move together. At the same time, the self-closing spring seat 11 moves with gearbox A toward the near end of the self-closing damping frame 10 (see the state shown in Figure 20(b)).

[0069] The aforementioned press-rebound damping slide rail cleverly utilizes the cooperation between the transmission gear 22 and the clutch mechanism within gearbox A, as well as the cooperation between gearbox A and the self-closing tension spring seat 11, to achieve the conversion between press-rebound elastic energy storage / release and damping closing elastic energy storage / release. During the press-rebound process, the transmission gear 22 can drive the rack 2-2 on the movable rail 2 to rebound together, while the self-closing tension spring seat 11 can move with gearbox A towards the near end of the self-closing damping frame without obstructing the press-rebound function. In the initial stage of slide rail closure, it can simultaneously complete the elastic energy storage of press-rebound and damping closing, and the forward and reverse rotation of the transmission gear 22 allows the slide rail to be pushed and pulled freely. In the later stage of slide rail closure, the damping closing mechanism can automatically drive the slide rail to close. By organically combining the press-rebound mechanism and the damping closing mechanism, the stability of their cooperation will not be reduced due to factors such as installation errors, making assembly simpler and more convenient, and ensuring product consistency.

[0070] In this embodiment, the transmission gear 22 can rotate in both directions at the first position, allowing the movable rail 2 to be pushed and pulled normally. After leaving the first position, the transmission gear 22 can only rotate in one direction, allowing the movable rail 2 to spring open when the gearbox A rebounds, and for the movable rail 2 to close, it can return the gearbox A to the first position to store energy. The switching between the forward / reverse and unidirectional rotation states of the transmission gear 22 can be achieved using existing structures, such as a ratchet mechanism. In the first position, the ratchet mechanism is released, allowing the transmission gear 22 to rotate in both directions. After leaving the first position, the ratchet mechanism activates, allowing the transmission gear 22 to rotate only in one direction. In this embodiment, the transmission gear 22 is mounted on a unidirectional mechanism, and the transmission gear 22 can only rotate forward relative to the unidirectional mechanism. The clutch mechanism engages with the unidirectional mechanism. At the first position, the clutch mechanism disengages from the unidirectional mechanism, allowing the transmission gear 22 to rotate in both directions. During the process of the gearbox A moving from the first position to the second position, the clutch mechanism engages with the unidirectional mechanism, allowing the transmission gear 22 to rotate only in the forward direction. In other words, the one-way mechanism allows the transmission gear 22 to rotate only in the forward (clockwise) direction relative to the one-way mechanism. By locking or unlocking the one-way mechanism through a clutch mechanism, it can switch between free rotation and a fixed state, thus enabling the transmission gear 22 to rotate in both forward and reverse directions as well as in one direction. This clutch and one-way mechanism design allows the transmission gear 22 to freely switch between forward and reverse rotation and unidirectional rotation. Under the condition that the slide rail opens and closes normally, the movement of the gearbox A can achieve elastic energy storage through press-and-rebound and damped closure, ensuring stable and reliable operation. Figures 11 to 14As shown, as a preferred solution, the aforementioned one-way mechanism can be a one-way bearing 27. A one-way bearing 27 is a type of bearing that can rotate freely in one direction while locking in the other; it is also called an overrunning clutch, and is a mature existing product. The transmission gear 22 is mounted on the rotating shaft 30 via the one-way bearing 27. A stop gear 29 is fixedly mounted at the lower end of the rotating shaft 30. The gearbox A contains a swinging clutch arm 31, which has serrations 31a that mesh with the stop gear 29. In the first position, the clutch arm 31 disengages from the stop gear 29, allowing the stop gear 29 to be in a free state, at which point the transmission gear 22 can rotate in both directions. During the process of the gearbox A moving from the first position to the second position, the clutch arm 31 meshes with the stop gear 29, at which point the transmission gear 22 can only rotate in one direction. In specific assembly, the stop gear 29 and the rotating shaft 30 are tightly fitted together, forming a single unit after press-fitting. Similarly, the outer ring of the one-way bearing is tightly fitted to the inner hole of the transmission gear 22, also forming a single unit after press-fitting. Once the one-way bearing is installed in the rotating shaft 30, when the rotating shaft 30 is fixed, the transmission gear 22 can only rotate in one direction. Utilizing the one-way bearing to achieve unidirectional rotation of the transmission gear 22 results in a simple and compact structure. By using the clutch arm 31 in conjunction with the stop gear 29, the rotating shaft 30 can be locked or unlocked, allowing the transmission gear 22 to switch between forward / reverse rotation and unidirectional rotation. The structural design is simple, and manufacturing and assembly are convenient.

[0071] Further integration Figures 11 to 14 As shown, and refer to Figure 17 , Figures 19(a) to 19(c) One end of the aforementioned clutch arm 31 is rotatably mounted in the gearbox A via a swing shaft 31-1, allowing the clutch arm 31 to rotate around the swing shaft 31-1. The other end of the clutch arm 31 is provided with a sliding pin 31-3 that can move within the track groove 5-3 of the base 5. Figure 17As shown, the track groove 5-3 has a straight groove section 5-3a, an arc-shaped guide groove 5-3b located at the far end of the straight groove section 5-3a, and a snap-fit ​​groove 5-3c. The straight groove section 5-3a can extend along the rebound direction. The snap-fit ​​groove 5-3c is located on one side of the arc-shaped guide groove 5-3b. A trigger pin 31-2 is also provided on one side of the clutch arm 31. The trigger pin 31-2 is offset to one side from the line connecting the swing shaft 31-1 and the sliding pin 31-3. A synchronous trigger block 17 is provided at the far end of the trigger transmission block 16. The synchronous trigger block 17 has a rebound unlocking part 17-1. The rebound unlocking part 17-1 has a pushing inclined surface 17-2 that can cooperate with the trigger pin 31-2. When the gearbox A moves to the first position... The sliding pin 31-3 swings to one side from the straight groove section 5-3a through the arc guide groove 5-3b, causing the clutch arm 31 to disengage from the stop gear 29. The sliding pin 31-3 is engaged in the locking groove 5-3c, so that the gearbox A is locked in the first position. In the first position, the trigger part 16-1 of the trigger transmission block 16 is pushed by the trigger piece 2-3 on the movable rail 2, causing the rebound unlocking part 17-1 to move to the far end. The pushing inclined surface 17-2 pushes the trigger pin 31-2, causing the clutch arm 31 to swing towards the stop gear 29, causing the sliding pin 31-3 to disengage from the locking groove 5-3c and enter the straight groove section 5-3a to unlock. At the same time, the clutch arm 31 meshes with the stop gear 29. The engagement and disengagement of the clutch arm 31 and the stop gear 29 are determined by the left and right swinging position of the sliding pin 31-3. The engagement or disengagement of the clutch arm 31 and the stop gear 29 is achieved through the cooperation of the track groove 5-3 with the clutch arm 31. The clutch arm swings to unlock and rebound by using the pushing inclined surface 17-2 on the rebound unlocking part 17-1. The structure is simple and ingenious, easy to assemble and manufacture, and the press-rebound trigger is stable and reliable.

[0072] Figures 19(a) to 19(c)The diagram illustrates the engagement states of the transmission gear 22 and the clutch arm 32 when the gearbox A is in different positions. In Figure 19(a), the gearbox A is in the first position mentioned above. At this time, the sliding pin 31-3 on the clutch arm 31 swings away from the stop gear 29 via the arc-shaped guide groove 5-3b, causing the sawtooth 31a on the clutch arm 31 to disengage from the stop gear 29. The transmission gear 22 can then rotate in both directions. Simultaneously, the sliding pin 31-3 engages with the locking groove 5-3c, restricting the gearbox A to the first position. In the state shown in Figure 19(a), the movable rail 2 can be opened or closed normally, and with the damping self-closing module, it can be used as a normal damping slide rail. As shown in Figure 19(b), when the movable rail 2 is pressed to move, the trigger plate 2-3 on the movable rail 2 will push the trigger part 16-1 to move. At this time, the rebound unlocking part 17-1 moves to the far end, and the pushing inclined surface 17-2 will push the trigger pin 31-2 to one side, causing the clutch arm 31 to swing towards the stop gear 29. This causes the sliding pin 31-3 to disengage from the locking groove 5-3c and enter the straight groove section 5-3a through the arc-shaped guide groove 5-3b. Since the gearbox A is no longer restrained, it will rebound under the action of the rebound spring 23. Furthermore, since the serration 31a of the clutch arm 32 is engaged with the stop gear 29 at this time, the transmission gear 22 cannot rotate counterclockwise, thus causing the movable rail 2 to pop out. Figure 19(c) shows the state of gearbox A rebounding to the second position. At this time, the sawtooth 31a of clutch arm 32 is engaged with the stop gear 29, so the transmission gear 22 can only rotate in one direction. At this time, the movable rail 2 can continue to be pulled outward, and when the movable rail 2 is pushed inward, since the transmission gear 22 cannot rotate counterclockwise, the rack 2-2 on the movable rail 2 will drive gearbox A to move to the first position. After returning to the first position, it will lock again, and the rebound spring 23 will be stretched and stored.

[0073] like Figure 11 and Figure 12 As shown, the aforementioned transmission gear 22, stop gear 29, and clutch arm 31 are all integrated inside the gearbox A. The gearbox A includes a housing 20, an upper cover plate 21, and a lower cover plate 28. The upper cover plate 21 is fixed to the upper part of the housing 20, forming an upper mounting cavity. The lower cover plate 28 is fixed to the lower part of the housing 20, forming a lower mounting cavity. The transmission gear 22 is located in the upper mounting cavity, and the stop gear 29 and clutch arm 31 are located in the lower mounting cavity. The lower cover plate 28 also has oblong holes 28-1 corresponding to the positions of the actuating pin 31-2 and sliding pin 31-3 on the clutch arm 31. The actuating pin 31-2 and sliding pin 31-3 pass through the corresponding oblong holes 28-1 and engage with the corresponding rebound unlocking part 17-1 and track groove 5-3. Figure 5 As shown, an upper cover 6 is also fixed on the base 5. The upper cover 6 can effectively restrict unnecessary movement of the gearbox A to ensure the stability of the gearbox A's movement.

[0074] The aforementioned synchronous trigger block 17 can be an integral part of the trigger transmission block 16, or it can be a separate structure; in this embodiment, the latter is preferred. Figure 9 and Figure 10 As shown, the synchronous trigger block 17 and the trigger transmission block 16 are separately arranged. The synchronous trigger block 17 is provided with a trigger extension arm 17-3 that abuts against the trigger transmission block 16 (see...). Figure 23 A first return spring 19 is provided between the synchronous trigger block 17 and the base 5, and a second return spring 26 is provided between the trigger transmission block 16 and the base 5 to ensure stable reset of both. The trigger extension arm 17-3 and the trigger transmission block 16 are kept in contact, and the synchronous trigger block 17 can move together when the trigger transmission block 16 moves. One end of the synchronous trigger block 17 is also provided with a toggle groove, and a synchronous rotating shaft 18 is provided in the base 5. The synchronous rotating shaft 18 is provided with a protrusion 18-1 that can be inserted into the toggle groove. When the synchronous trigger block 17 moves, it can drive the protrusion 18-1 to swing, thereby causing the synchronous rotating shaft 18 to rotate. Figure 23 As shown, slide rails are generally used in pairs. The synchronous rotating shaft 18 is connected to the synchronous rotating shaft 18 in another set of press-rebound damping slide rails via the synchronous rod 9. In this way, when one slide rail is pressed, the pressing action is transmitted to the other set of slide rails via the synchronous rod 9 to ensure synchronous unlocking and rebound, avoiding jamming due to asynchronous unlocking on both sides. It should be noted that since the synchronous trigger block 17 and the trigger transmission block 16 are set separately, after the pressing action is transmitted to the other set of slide rails via the synchronous rod 9, the passive synchronous rotating shaft 18 drives the synchronous trigger block 17 to move to unlock, without having to drive the corresponding trigger transmission block 16 to move, which can reduce the transmission path and resistance.

[0075] like Figure 15As shown in Figures 16(a) and 16(b), the self-closing damping frame 10 is fixed to one side of the base 5. The proximal end of the self-closing damping frame 10 has a guide portion 10-1, and a guide rib 10-2 is provided on the guide portion 10-1. The proximal end of the guide rib 10-2 has a corner 10-2a. The self-closing latch 15 is connected to the self-closing tension spring 12 and the damper 13 through the self-closing slider 14. The self-closing latch 15 is rotatably mounted on the self-closing slider 14. The self-closing latch 15 has a latch groove 15-1 for cooperating with the self-closing pin 2-4, a guide groove 15-2 for slidingly cooperating with the guide rib 10-2, and a corner groove 15-3 for cooperating with the corner 10-2a. Referring to Figure 16(a), during the process of the movable rail 2 being pulled open from the closed state, the self-closing pin 2-4 engages with the locking head groove 15-1 and drives the self-closing locking head 15 to move towards the corner 10-2a. At this time, the guide groove 15-2 of the self-closing locking head 15 cooperates with the straight guide rib 10-2 to maintain the state shown in Figure 16(a), and the self-closing pin 2-4 can be kept in the locking head groove 15-1; referring to Figure 16(b), when the self-closing pin 2-4 engages with the corner groove 15-1 to maintain the self-closing locking head 15 to move towards the corner 10-2a, the self-closing locking head 15 can move towards the corner 10-2a. When the self-closing locking head 15 moves to corner 10-2a, it is rotated by the corner groove 15-3, causing the self-closing pin 2-4 to separate from the locking head groove 15-1. At the same time, the corner groove 15-3 of the self-closing locking head 15 engages with corner 10-2a, keeping the self-closing locking head 15 at corner 10-2a. At this time, the damper 13 is pulled out, and one end of the self-closing tension spring 12 also moves to the end closer to corner 10-2a. During the closing process of the movable rail 2 from the open state, when the self-closing pin 2-4 touches the self-closing locking head 15, the self-closing locking head 15 rotates and disengages from corner 10-2a. At the same time, the self-closing pin 2-4 engages with the locking head groove 15-1 and moves together with the self-closing pin 2-4 in the direction of rail closure. It is easy to see that the rotation center of the card slot 15-1 and the self-closing card 15 is set eccentrically. When the self-closing card 15 moves to the corner 10-2a, it automatically swings to realize the engagement or separation of the self-closing card 15 and the self-closing pin 2-4, as well as the locking or unlocking of the self-closing card 15 and the guide rib 10-2. The structure is simple and the conversion is stable.

[0076] Reference Figure 15 As shown, the self-closing damping frame 10 is provided with a damper mounting groove 10-3 and a tension spring seat slide groove 10-4. The damper 13 is fixed in the damper mounting groove 10-3, and the self-closing tension spring seat 11 is slidably installed in the tension spring seat slide groove 10-4. The self-closing tension spring seat 11 has an abutment portion 11-1 that abuts against the gearbox A. The abutment portion 11-1 extends out of the self-closing damping frame 10 and extends into the base 5 to abut against the housing 20 of the gearbox A. In order to prevent the gearbox A from generating impact noise when it rebounds against the base 5, a buffer spring plate that cooperates at a second position is provided between the gearbox A and the base 5. Specifically, a first buffer spring plate 5-4 (e.g., ...) can be provided near the end of the base 5. Figure 17As shown), a second buffer spring 20-1 is provided near the end of the housing 20 of gearbox A (as shown). Figure 11 As shown, during the rebound of gearbox A, the first buffer spring 5-4 contacts the housing 20, and the second buffer spring 20-1 contacts the base 5. The buffer springs generate a buffering effect through deformation, which effectively reduces the noise generated by the collision.

[0077] like Figures 6 to 10 As shown, in this embodiment, a rotating wheel 24 is provided on the base 5. The rotating wheel 24 is rotatably mounted on the mounting shaft 5-5 on the base 5, allowing the rotating wheel 24 to rotate freely. One end of the rebound spring 23 is connected to the gearbox A, and the other end passes around the rotating wheel 24 and is connected to the rebound spring seat 7. The base 5 is provided with at least two levels of slots 5-2 for engaging with the rebound spring seat 7. The rebound force is adjusted by changing the position of the rebound spring seat 7 on the base 5. Figure 7 As shown, three slots 5-2 are provided on the base 5. The rebound spring seats 7 correspond to different stretching states of the rebound spring 23 on different slots 5-2, which in turn correspond to different pulling forces exerted by the rebound spring 23 on the gearbox A, i.e., rebound force. The rebound force of the slide rail changes, and the drawer's opening distance also changes. Different application scenarios and usage habits have different requirements for the rebound distance of the drawer (slide rail), which can be achieved by adjusting the rebound amount. One end of the rebound spring 23 can be engaged in the U-shaped groove on the lower edge of the box body 20 and limited by the lower cover plate 28, making the connection between the gearbox A and the rebound spring 23 simple and convenient.

[0078] When installing rebound drawer slides, a certain pressing gap W is usually left between the drawer panel and the cabinet body to facilitate pressing the drawer and triggering the rebound mechanism to pop it out. However, in reality, installation errors or factors such as the machining precision of the cabinet body and drawer can affect the accuracy of the pre-set pressing gap W, causing it to be insufficient. Therefore, it is necessary to adjust the pressing gap W to resolve this issue. Figure 2 and Figure 18As shown, in this embodiment, the base 5 is mounted on the fixed rail 1 via a base 4. The base 4 is a sheet metal part with several adjustment holes 4-1 and several latches 5-1 that can slide within the corresponding adjustment holes 4-1, allowing the base 5 and base 4 to move within a certain range. The extension direction of the adjustment holes 4-1 is the sliding direction of the slide rail, meaning the base 5 can be adjusted in position along the sliding direction of the slide rail on the base 4. An adjuster 8 is also rotatably mounted on the base 4. The adjuster 8 is a knob structure with a spiral groove on one side. The base 5 has a boss 5-6 that mates with the spiral groove. The boss 5-6 is crescent-shaped. By rotating the adjuster 8, the front and rear position of the base 5 on the base 4 is changed to adjust the pressing gap W of the movable rail 2. To facilitate the positioning of the regulator 8, a positioning piece 4-2 is provided on one side of the regulator 8 on the base 4. The positioning piece 4-2 can be punched inward to form protrusions. Several grooves are provided on the other side of the regulator 8 along the circumferential direction. The grooves and the protrusions on the positioning piece 4-2 can cooperate to position the regulator 8.

[0079] Reference Figure 22 As shown, in this embodiment, the trigger transmission block 16 is also provided with a switching handle 25 at one end near the trigger part 16-1. The base 5 has an abutment surface 5-7 on the side near the trigger part 16-1. The switching handle 25 has a lock position and an unlock position that can be rotated and switched. In the lock position, the switching handle 25 abuts against the abutment surface 5-7 to eliminate the movement space of the trigger transmission block 16 within the pressing gap W. In the unlock position, the switching handle 25 disengages from the abutment surface 5-7 so that the trigger transmission block 16 can be pressed normally. When the switching handle is in the unlock position, there is a gap between the trigger transmission block 16 and the base 5, and the trigger transmission block 16 can move back and forth. Pressing the moving rail 2 forward drives the trigger piece 2-3 to trigger the rebound device to achieve a rebound. When the conversion handle 25 is rotated 45 degrees and is in the locked position, the gap between the trigger transmission block 16 and the base 5 is blocked by the front end of the conversion handle 25, so the trigger transmission block 16 cannot move back and forth, and thus the rebound device cannot be triggered. At this time, the movable rail 2 cannot move forward, and the rebound function is restricted. However, the movable rail 2 can move backward, that is, the movable rail 2 (drawer) can be pulled open and can be used as a normal damping drawer (slide rail). In other words, the conversion handle 25 can prevent the slide rail from being accidentally triggered and rebounding, such as in the case of non-subjective pressing such as during handling, transportation, or accidental collision. When the pressing function is restricted by the conversion handle, the slide rail can be pulled open or closed normally, so it can be used as a normal damping slide rail. That is, this press-rebound damping slide rail has both a rebound function and a damping self-closing function, which can meet two usage scenarios and can be switched freely.

[0080] To further understand the technical content of the press-rebound damping slide rail of the present invention, it is now combined with Figures 20(a) to 20(c)as well as Figures 21(a) to 21(d) The working principle of the present invention will be further explained.

[0081] Figures 20(a) to 20(c) This describes the opening process and principle of the press-and-rebound damping slide rail. As shown in Figure 20(a), when the slide rail or drawer is closed, gearbox A is locked in the first position on base 5. At this time, the transmission gear 22 inside gearbox A can rotate clockwise or counterclockwise, thus allowing the movable rail 2 or drawer panel to be opened or closed normally. When the movable rail 2 or drawer panel is pressed, the transmission block 16 triggers gearbox A to unlock and rebound. Gearbox A moves outward under the force of the rebound spring 23. At this time, the transmission gear 22 does not rotate counterclockwise, which can drive the rack 2-2 to move outward, popping out the movable rail 2. At the same time, the self-closing spring seat 11 and the self-closing latch 15 also move with gearbox A, causing the self-closing spring 12 to stop. This will hinder the rebound of the movable rail 2, as shown in Figure 20(b); the gearbox A rebounds to the second position, at which point the movable rail 2 continues to move outward under the action of inertia (or pulls the movable rail 2 to move outward), the self-closing pin 2-4 on the movable rail 2 drives the self-closing locking head 15 to move outward, when the self-closing locking head 15 moves to the corner 10-2a of the self-closing damping frame 10, the self-closing locking head 15 rotates along the corner 10-2a and locks at the corner 10-2a, and disengages from the self-closing pin 2-4, as shown in Figure 20(c), the movable rail 2 releases the tension of the self-closing spring 12 and is in a free state, the movable rail 2 continues to move outward until the movable rail 2 is fully ejected.

[0082] Figures 21(a) to 21(d)The closing process and principle of the press-and-rebound damping slide rail are described in Figure 21(a). When closing the drawer or slide rail, the movable rail 2 is pushed inward. Since the transmission gear 22 in the gearbox A cannot rotate counterclockwise at this time, the rack 2-2 of the movable rail 2 meshes with the transmission gear 22, causing the gearbox A to move inward as well, moving the gearbox A from the second position in Figure 21(a) to the first position in Figure 21(b). At this time, the rebound spring 23 is pulled out to store energy, and at the same time, the self-closing spring seat 11 moves inward with the gearbox A, causing the self-closing spring 12 to stretch and store energy. Referring to Figures 19(a) to 19(c), during this process, the sliding pin 31-3 of the clutch arm 31 in the gearbox A enters the locking groove 5-3c from the straight groove section 5-3a through the arc-shaped guide groove 5-3b. The clutch arm 31 separates from the stop gear 29. At this time, the transmission gear 22 can rotate counterclockwise, and the gearbox A is locked in the first position. As shown in Figure 21(c), the movable rail 2 continues to move inward. When the self-closing pin 2-4 encounters the self-closing latch 15, it triggers the self-closing latch 15 to rotate. The self-closing latch 15 engages with the self-closing pin 2-4, and under the action of the self-closing tension spring 12, it pulls the self-closing pin 2-4 inward, causing the movable rail 2 and the drawer to move inward as well. At the same time, the damper 13 starts to work, generating a force opposite to that of the self-closing tension spring 12, which has a buffering effect. Under the force of the self-closing tension spring 12, the movable rail 2 continues to move inward, and the drawer moves inward along with it until the movable rail 2 or the drawer is completely closed, forming the state shown in Figure 21(d).

[0083] This invention discloses a press-rebound damping slide rail, which ingeniously utilizes the cooperation of the transmission gear and clutch mechanism within the gearbox, as well as the cooperation between the gearbox and the self-closing tension spring seat, to achieve the conversion between press-rebound elastic energy storage / release and damping closing elastic energy storage / release. During the press-rebound process, the transmission gear can drive the rack on the movable rail to rebound together, while the self-closing tension spring seat can move with the gearbox towards the near end of the self-closing damping frame without obstructing the press-rebound function. In the initial stage of slide rail closure, the elastic energy storage of press-rebound and damping closing can be completed simultaneously, and the slide rail can be freely pushed and pulled by the forward and reverse rotation of the transmission gear. In the later stage of slide rail closure, the damping closing mechanism can automatically drive the slide rail to close. By organically combining the press-rebound mechanism and the damping closing mechanism, the stability of their cooperation will not be reduced due to factors such as installation errors, making assembly simpler and more convenient, and ensuring product consistency.

[0084] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A press-rebound damping slide rail, comprising a slide rail assembly and a press-rebound damping device, wherein the slide rail assembly comprises a fixed rail (1) and a movable rail (2) capable of sliding relative to the fixed rail (1), characterized in that: The movable rail (2) is equipped with a rack (2-2), a trigger plate (2-3), and a self-closing pin (2-4); The press-and-rebound damping device includes a base (5), a self-closing damping frame (10), a self-closing tension spring seat (11), a self-closing tension spring (12), a damper (13), a self-closing locking head (15), a gearbox (A), a trigger transmission block (16), and a rebound tension spring (23). The base (5) and the self-closing damping frame (10) are mounted on a fixed rail (1). The gearbox (A) is slidably mounted inside the base (5) along the sliding direction of the slide rail. The rebound tension spring (23) is located between the gearbox (A) and the base (5). The trigger transmission block (16) is located inside the base (5). At one end of the trigger transmission block (16), there is a trigger part (16-1) that cooperates with the trigger plate (2-3). The gearbox (A) is equipped with a rack and pinion mechanism. (2-2) meshing transmission gears (22) and a clutch mechanism for switching the bidirectional and unidirectional rotation of the transmission gears (22); the self-closing tension spring seat (11) is slidably disposed in the self-closing damping frame (10) along the sliding direction of the slide rail, and one end of the self-closing tension spring seat (11) abuts against the gearbox (A), one end of the self-closing tension spring (12) is connected to the self-closing tension spring seat (11), and the other end of the self-closing tension spring (12) is connected to the self-closing locking head (15), the damper (13) is disposed in the self-closing damping frame (10), and the damper (13) is connected to the self-closing locking head (15), and the self-closing locking head (15) can engage or disengage with the self-closing pin (2-4) in the stretched state of the damper (13); The gearbox (A) has a first position and a second position in the base (5). In the first position, the rebound spring (23) is stretched and stored, and the gearbox (A) is locked in the base (5). The clutch mechanism releases the transmission gear (22) so that the transmission gear (22) can rotate in both directions. At the same time, the self-closing spring seat (11) is at the far end of the self-closing damping frame (10) so that the self-closing spring (12) is stretched and stored. In the first position, the trigger part (16-1) of the trigger transmission block (16) is pushed by the trigger piece (2-3) on the movable rail (2) to cause the gearbox (A) to unlock and rebound to the second position. During the process of the gearbox (A) leaving the first position and moving to the second position, the clutch mechanism locks the reverse rotation of the transmission gear (22) and drives the rack (2-2) and the movable rail (2) to rebound and move together. At the same time, the self-closing spring seat (11) moves with the gearbox (A) towards the near end of the self-closing damping frame (10).

2. The press-rebound damping slide rail according to claim 1, characterized in that: The transmission gear (22) is mounted on the one-way mechanism, and the transmission gear (22) can only rotate in the forward direction relative to the one-way mechanism. The clutch mechanism cooperates with the one-way mechanism. At the first position, the clutch mechanism disengages from the one-way mechanism so that the transmission gear (22) can rotate in both directions. During the process of the gearbox (A) moving away from the first position and moving to the second position, the clutch mechanism engages with the one-way mechanism so that the transmission gear (22) can only rotate in the forward direction.

3. The press-rebound damping slide rail according to claim 2, characterized in that: The one-way mechanism is a one-way bearing (27). The transmission gear (22) is mounted on the rotating shaft (30) through the one-way bearing (27). A stop gear (29) is fixedly installed at the lower end of the rotating shaft (30). The gearbox (A) is provided with a swingable clutch arm (31). The clutch arm (31) is provided with serrations (31a) that can mesh with the stop gear (29). At the first position, the clutch arm (31) disengages from the stop gear (29). During the process of the gearbox (A) disengaging from the first position and moving to the second position, the clutch arm (31) meshes with the stop gear (29).

4. The press-rebound damping slide rail according to claim 3, characterized in that: One end of the clutch arm (31) is rotatably mounted in the gearbox (A) via a swing shaft (31-1). The other end of the clutch arm (31) is provided with a sliding pin (31-3) that can move within a track groove (5-3) of the base (5). The track groove (5-3) has a straight groove section (5-3a) and an arc-shaped guide groove (5-3b) and a snap-fit ​​groove (5-3c) located at the far end of the straight groove section (5-3a). A trigger pin (31-2) is also provided on one side of the clutch arm (31). A synchronous trigger block (17) is provided at the far end of the trigger transmission block (16). The synchronous trigger block (17) has a rebound unlocking part (17-1). The rebound unlocking part (17-1) has a pushing inclined surface (17-2) that can cooperate with the trigger pin (31-2). When the gearbox (A) moves to the first position, The sliding pin (31-3) swings to one side from the straight groove section (5-3a) through the arc-shaped guide groove (5-3b) to disengage the clutch arm (31) from the stop gear (29), and the sliding pin (31-3) engages in the engagement groove (5-3c) to lock the gearbox (A) in the first position; in the first position, the trigger part (16-1) of the trigger transmission block (16) is pushed by the trigger piece (2-3) on the movable rail (2) to move the rebound unlocking part (17-1) to the far end, and the pushing inclined surface (17-2) pushes the trigger pin (31-2) to swing the clutch arm (31) towards the stop gear (29), causing the sliding pin (31-3) to disengage from the engagement groove (5-3c) and enter the straight groove section (5-3a) to unlock, while the clutch arm (31) meshes with the stop gear (29).

5. The press-rebound damping slide rail according to claim 4, characterized in that: The synchronous trigger block (17) and the trigger transmission block (16) are separately arranged. The synchronous trigger block (17) is provided with a trigger extension arm (17-3) that abuts against the trigger transmission block (16). A first reset spring (19) is also provided between the synchronous trigger block (17) and the base (5). A second reset spring (26) is also provided between the trigger transmission block (16) and the base (5). One end of the synchronous trigger block (17) is also provided with a toggle groove. The base (5) is provided with a synchronous rotating shaft (18). The synchronous rotating shaft (18) is provided with a protrusion (18-1) that can be inserted into the toggle groove. The synchronous rotating shaft (18) is connected to the synchronous rotating shaft (18) in another set of press rebound damping slide rails through a synchronous rod (9).

6. The press-rebound damping slide rail according to any one of claims 1 to 5, characterized in that: The self-closing damping frame (10) is fixed to one side of the base (5). The proximal end of the self-closing damping frame (10) has a guide part (10-1). The guide part (10-1) is provided with a guide rib (10-2). The proximal end of the guide rib (10-2) is provided with a corner (10-2a). The self-closing latch (15) is connected to the self-closing tension spring (12) and the damper (13) through the self-closing slider (14). The self-closing latch (15) is rotatably mounted on the self-closing slider (14). The self-closing latch (15) has a latch groove (15-1) for cooperating with the self-closing pin (2-4), a guide groove (15-2) for sliding cooperation with the guide rib (10-2), and a corner groove (15-3) for cooperating with the corner (10-2a). During the process of the movable rail (2) being pulled open from the closed state... The self-closing pin (2-4) engages with the locking head groove (15-1) and drives the self-closing locking head (15) to move towards the corner (10-2a). When the self-closing locking head (15) moves to the corner (10-2a), it is rotated by the corner groove (15-3), causing the self-closing locking head (15) to separate from the self-closing pin (2-4) and the locking head groove (15-1). At the same time, the corner of the self-closing locking head (15) rotates. The groove (15-3) engages with the corner (10-2a); during the closing process of the movable rail (2) from the open state, when the self-closing pin (2-4) touches the self-closing latch (15), the self-closing latch (15) rotates and disengages from the corner (10-2a) to unlock. At the same time, the self-closing pin (2-4) engages with the latch groove (15-1) and moves together with the self-closing pin (2-4) in the direction of slide rail closure.

7. The press-rebound damping slide rail according to claim 6, characterized in that: The self-closing tension spring seat (11) has an abutting part (11-1) that abuts against the gearbox (A), and a buffer spring is provided between the gearbox (A) and the base (5) at a second position.

8. The press-rebound damping slide rail according to claim 1, characterized in that: The base (5) is provided with a rotating wheel (24). One end of the rebound spring (23) is connected to the gearbox (A), and the other end passes around the rotating wheel (24) and is connected to the rebound spring seat (7). The base (5) is provided with at least two levels of slots (5-2) for engaging with the rebound spring seat (7). The rebound force is adjusted by changing the position of the rebound spring seat (7) on the base (5).

9. The press-rebound damping slide rail according to claim 1, characterized in that: The base (5) is mounted on the fixed rail (1) via the base (4). The base (4) has several adjustment holes (4-1). The base (5) has several buckles (5-1) that can slide in the corresponding adjustment holes (4-1). The base (4) has an adjuster (8) that is rotatably mounted on it. One side of the adjuster (8) has a spiral groove. The base (5) has a boss (5-6) that cooperates with the spiral groove. By rotating the adjuster (8), the front and rear positions of the base (5) on the base (4) are changed to adjust the pressing gap (W) of the movable rail (2).

10. The press-rebound damping slide rail according to claim 1, characterized in that: The trigger transmission block (16) is provided with a conversion handle (25) at one end near the trigger part (16-1). The base (5) has an abutment surface (5-7) on the side near the trigger part (16-1). The conversion handle (25) has a lock position and an unlock position that can be rotated and switched. In the lock position, the conversion handle (25) abuts against the abutment surface (5-7) to eliminate the movement space of the trigger transmission block (16) in the pressing gap (W). In the unlock position, the conversion handle (25) disengages from the abutment surface (5-7) so that the trigger transmission block (16) can be pressed normally.

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