Hidden rail synchronous rebound device

Abstract

A hidden track synchronous rebound device includes a rebound device and a synchronization rod. The rebound device includes a bracket, a slide plate assembly, and a synchronization component. The slide plate assembly includes a slide plate and a hook. The slide plate is slidably mounted on the bracket, and the hook is rotatably mounted on the slide plate. The bracket has a first track groove. When the slide plate slides, it drives the hook to move on the first track groove. The synchronization component is mounted on the bracket and includes a synchronization member and a paddle that are linked together. This invention, by setting up a synchronization component, which includes a synchronization member and a paddle, and the synchronization member includes a transmission member and a sliding piece, and the synchronization component is driven by a gear and rack, and is connected to the left and right synchronization components by a synchronization rod, can cause the locking structures on both sides to reset in linkage when the drawer is closed, and can cause the locking structures on both sides to unlock synchronously when the drawer is opened, which can avoid jamming and improve stability. The synchronization component is set independently of the slide plate, and the tension of the spring is not applied to the synchronization component when the drawer is unlocked, thus the trigger sensitivity is high.

Description

Technical Field

[0001] This invention relates to the field of drawer technology, and in particular to a hidden rail synchronous rebound device. Background Technology

[0002] Chinese Patent Document No. CN221902943U disclosed on October 29, 2024, a drawer guide rail synchronous rebound device, including a fixed base, a sliding plate, and a tension spring. The sliding plate is slidably connected to the fixed base. One end of the tension spring is connected to the fixed base, and the corresponding other end of the tension spring is connected to the sliding plate. The front end of the sliding plate has a protruding push portion for being pushed backward by the drawer. The fixed base has an upper unlocking slide, and a sliding hook is slidably disposed in the upper unlocking slide. The rear part of the sliding plate has a rack portion. The rear part of the fixed base is rotatably connected to a synchronous connector. The axis of the synchronous connector extends in the left-right direction. One end of the synchronous connector has a gear portion, and the corresponding other end of the synchronous connector has a connecting shaft head for connecting the ends of the left and right synchronous connecting rods. The gear portion and the rack portion are meshed and connected. The fixed base provides a travel range for the sliding plate to maintain the meshing connection between the rack portion and the gear portion. The rack of the synchronous rebound device is set on the slide plate. When the drawer is unlocked, the slide plate will be affected by the tension of the tension spring. That is, the tension of the tension spring will be applied to the slide plate and the synchronous connector, resulting in the unlocking trigger being insensitive.

[0003] Therefore, further improvements are necessary. Summary of the Invention

[0004] The purpose of this invention is to provide a hidden track synchronous rebound device with simple and reasonable structure, high synchronization, high sensitivity, stability and reliability, and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] A hidden track synchronous rebound device designed for this purpose is characterized in that: the synchronous rebound device includes a rebound device and a synchronous rod, the rebound device includes a bracket, a slide plate assembly and a synchronous assembly, the slide plate assembly includes a slide plate and a hook, the slide plate is slidably mounted on the bracket, the hook is rotatably mounted on the slide plate, the bracket is provided with a first track groove, when the slide plate slides, it drives the hook to move on the first track groove, the synchronous assembly is mounted on the bracket and includes a synchronous component and a paddle that are linked together. When the skateboard drives the hook forward to the corresponding position, the hook acts on the synchronization component, causing the synchronization component to drive the paddle to the locking position, thereby resetting the synchronization component. The left and right synchronization components are connected by a synchronization rod, so that the resetting actions of the left and right synchronization components are kept synchronized. When the skateboard moves the hook backward, the hook pushes the paddle to the unlock position, and the paddle moves the synchronizing component to the initial position to unlock the synchronizing component. The synchronizing component drives another synchronizing component to unlock synchronously through the synchronizing rod, thereby causing the skateboard of the other rebound device to rebound synchronously under the action of elasticity.

[0006] The hidden rail includes slide rail assemblies respectively disposed on both sides of the drawer. The slide rail assembly includes a movable rail and a fixed rail that are slidably connected to each other. A rebound device is disposed on the fixed rail. The rebound device also includes an elastic element. The elastic element is disposed between the slide plate and the bracket. The synchronization component includes a transmission component and a sliding plate. The sliding plate is linked with the transmission component and the paddle respectively. The transmission components on the left and right sides are connected by a synchronization rod. The first track groove is provided with a first locking position, an unlocking position and a middle position. When the drawer is closed, the moving rail drives the slide plate assembly forward. When the slide plate drives the hook to the corresponding position, the hook acts on the sliding plate to push the sliding plate forward. In turn, the sliding plate drives the transmission component and the lever to rotate, so that the lever rotates to the locking position, realizing the reset of the synchronization component. After the hook pushes the sliding plate forward, it moves to the middle position. When the drawer is released, the slide plate drives the hook to retract under the elastic force of the elastic component, so that the hook moves to the first locking position, realizing the locking of the drawer. When the drawer is pressed open, the sliding plate moves the hook from the first locking position to the unlocking position. After the drawer is released, the sliding plate moves the hook backward under the elastic force of the elastic element, so that the hook acts on the lever, which in turn rotates the lever to the unlocking position. The lever then moves the sliding piece backward, which in turn drives the transmission component to rotate, thereby unlocking the synchronous component.

[0007] The first track groove is provided with a second locking position and a forward passage. The bracket is provided with an arc-shaped guide part. The forward passage is located between the arc-shaped guide part and the second locking position. When the slide moves the hook forward to the forward passage and the drawer is released, the slide moves the hook backward under the elastic force of the elastic element so that the hook moves to the second locking position.

[0008] The first track groove is provided with a reversing channel and a clearance position, and the paddle is provided with a guide surface; After the crochet hook pushes the lever to the unlocked position, the retraction channel is opened, the crochet hook retracts and enters the retraction channel, and then retracts along the retraction channel back to the open position; When the hook is in the retracting channel and the lever is turned to the locked position, the drawer is pushed forward, the slide moves the hook forward, and when the hook reaches the corresponding position, it contacts the guide surface and slides into the clearance position along the guide surface; When the hook is in the clearance position and the drawer is released, the slide plate, under the elastic force of the elastic element, drives the hook backward, so that the hook enters the retraction channel and returns to the open position along the retraction channel.

[0009] The hook is provided with a sliding post, which is slidably mounted on the first track groove. The sliding plate is provided with a first protrusion. The bracket is provided with a sliding hole groove, and one end of the sliding hole groove is provided with a blocking groove. The first protrusion slides between the sliding hole groove and the blocking groove. The bracket is provided with an arc-shaped guide part, which is located between the sliding hole groove and the blocking groove. When the slide plate moves the hook forward to the corresponding position, the sliding column pushes the first protrusion so that the first protrusion slides forward along the sliding hole groove and enters the blocking groove. The sliding column enters the middle position along the arc-shaped guide. When the drawer is released, the slide plate moves the hook backward under the elastic force of the elastic element so that the sliding column slides to the first locking position.

[0010] The paddle is provided with a second protrusion, and the second protrusion is provided with a first locking surface and an unlocking surface. The bracket is provided with a second locking surface and a fan-shaped sliding hole. The second protrusion is limited and slidably disposed on the sliding hole. The unlocking position is located at one end of the sliding hole, and the locking position is located at the other end of the sliding hole. When the second protrusion slides to the locking position, a first locking position is formed between the first locking surface and the second locking surface. When the sliding post slides to the first locking position, it is blocked by the first locking surface and the second locking surface together, so that the sliding post is locked in the first locking position. When the drawer is pressed open, the sliding column moves from the first locking position to the unlocking position. After the drawer is released, the slide plate moves the hook backward under the elastic force of the elastic element. When the hook moves to the corresponding position, the sliding column acts on the unlocking surface to make the lever rotate and the second protrusion moves to the unlocking position.

[0011] The skateboard assembly also includes a slider and a buffer block. The slider is rotatably mounted on the skateboard. The bracket is provided with a second track groove. When the skateboard slides, it drives the slider to move on the second track groove. The second track groove includes a rear sliding section, a front sliding section and a turning position. The turning position is located between the rear sliding section and the front sliding section. The slider is provided with a limit hook and the movable rail is provided with an action element. After the drawer is opened, the slider is located on the rear sliding section, and the limit hook is hidden inside the rebound device; When the drawer is closed, the moving rail pushes the slide plate assembly forward through the action member. The slider slides from the rear sliding section to the front sliding section through the turning position. The limit hook extends out of the rebound device, and the action member is limited between the limit hook and the buffer block. When the action member of the moving rail is locked by the limit hook of the slider, and the sliding column of the hook moves to the first locking position and is locked, the moving rail and the drawer are also locked at the same time. When the drawer is opened, the sliding plate pushes the movable rail relative to the fixed rail to open backward through the action component.

[0012] The slide is equipped with a buffer arm at one end and a limit part at the other end of the bracket; when the drawer is opened, the slide acts on the limit part through the buffer arm under the elastic force of the elastic element. The buffer block is fixed to the slide plate; when the drawer is closed, the movable rail acts on the buffer block through the actuator to make the slide plate assembly slide forward; when the drawer is opened, the slide plate acts on the actuator through the buffer block to push the movable rail to open backward relative to the fixed rail.

[0013] The bracket is provided with a sloping guide at the position corresponding to the first locking position; when the drawer is pressed open, the slide plate drives the hook forward so that the sliding column slides into the unlocking position along the sloping guide.

[0014] The transmission component is a gear connector. The transmission component is provided with a first transmission tooth, the sliding plate is provided with a first rack and a second rack, and the paddle is provided with a second transmission tooth. The first rack meshes with the first transmission tooth, and the second rack meshes with the second transmission tooth, so that the sliding plate is linked with the transmission component and the paddle respectively.

[0015] The concealed rail synchronous rebound device of the present invention features a synchronous component, which includes a synchronous member and a paddle. The synchronous member includes a transmission component and a sliding plate. The synchronous component is driven by a rack and pinion and connected to the left and right synchronous components by a synchronous rod. When the drawer is closed, the locking structures on both sides are reset in tandem. When the drawer is opened, the locking structures on both sides are unlocked synchronously, avoiding jamming and improving stability. In addition, the synchronous component is set independently of the slide plate, that is, the rack is not set on the slide plate. When the drawer is unlocked, the tension of the spring is not applied to the synchronous component, resulting in high trigger sensitivity. When the user opens the drawer, pressing any position on the drawer panel will operate it. Moreover, the trigger stroke is short, reducing the gap between the drawer panel and the cabinet, which helps maintain the drawer's airtightness. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the rebound device in one embodiment of the present invention.

[0017] Figure 2 This is a partial structural schematic diagram of the rebound device in one embodiment of the present invention.

[0018] Figure 3 This is a partial exploded view of the rebound device in one embodiment of the present invention.

[0019] Figure 4 This is a partial structural diagram of the rebound device from another position in one embodiment of the present invention.

[0020] Figure 5 This is a partial structural diagram of the third position of the rebound device in one embodiment of the present invention.

[0021] Figure 6 This is a top view of the bracket in one embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the overall structure of the bracket in one embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the overall structure of the bracket from another position in one embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the overall structure of the skateboard assembly in one embodiment of the present invention.

[0025] Figure 10 This is a schematic diagram of the overall structure of the synchronization component in one embodiment of the present invention.

[0026] Figure 11 This is a schematic diagram of the structure in one embodiment of the present invention where the first protrusion does not enter the shielding groove.

[0027] Figure 12 This is a schematic diagram of the structure after the first protrusion enters the shielding groove in one embodiment of the present invention.

[0028] Figure 13 This is a schematic diagram of the structure when the synchronization component is unlocked in one embodiment of the present invention.

[0029] Figure 14 This is a schematic diagram of the structure when the synchronization component is locked in one embodiment of the present invention.

[0030] Figure 15 This is a structural diagram of the rebound device when the slide rail assembly is fully opened, according to an embodiment of the present invention.

[0031] Figure 16 This is a cross-sectional view of the rebound device when the slide rail assembly is fully opened in one embodiment of the present invention.

[0032] Figure 17 This is a structural diagram of the rebound device when the synchronization component starts to reset, according to an embodiment of the present invention.

[0033] Figure 18 This is a cross-sectional view of the rebound device when the synchronization component begins to reset, according to an embodiment of the present invention.

[0034] Figure 19 This is a structural diagram of the rebound device when the synchronization component completes the reset in one embodiment of the present invention.

[0035] Figure 20 This is a cross-sectional view of the rebound device when the synchronization component completes the reset in one embodiment of the present invention.

[0036] Figure 21 This is a schematic diagram of the anti-collision locking structure of the rebound device in one embodiment of the present invention.

[0037] Figure 22 This is a cross-sectional view of the anti-collision locking structure of the rebound device in one embodiment of the present invention.

[0038] Figure 23 This is a structural diagram of the rebound device when the slide rail assembly is closed, according to an embodiment of the present invention.

[0039] Figure 24 This is a cross-sectional view of the rebound device when the slide rail assembly is closed, according to an embodiment of the present invention.

[0040] Figure 25 This is a structural diagram of the rebound device when the synchronization component begins to unlock, according to an embodiment of the present invention.

[0041] Figure 26 This is a cross-sectional view of the rebound device when the synchronization component begins to unlock, according to an embodiment of the present invention.

[0042] Figure 27 This is a structural diagram of the rebound device when the synchronization component completes unlocking in one embodiment of the present invention.

[0043] Figure 28 This is a cross-sectional view of the rebound device when the synchronization component completes unlocking in one embodiment of the present invention.

[0044] Figure 29 This is a schematic diagram of the protective structure of the rebound device in one embodiment of the present invention.

[0045] Figure 30 This is a cross-sectional view of the protective structure of the rebound device in one embodiment of the present invention. Detailed Implementation

[0046] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0047] See Figures 1-30 This concealed rail synchronous rebound device includes concealed rails comprising slide rail assemblies respectively disposed on both sides of the drawer. Each slide rail assembly includes a movable rail 3 and a fixed rail 4 slidably connected to each other. The drawer is fixedly mounted on the movable rail 3. The synchronous rebound device includes a rebound device 2 and a synchronous rod 13. The rebound device 2 is disposed on the fixed rail 4 and includes a bracket 5, a slide plate assembly, an elastic element 6, and a synchronous component. The slide plate assembly includes a slide plate 7 and a hook 8. The slide plate 7 is slidably disposed on the bracket 5, and the hook 8 is rotatably disposed on the slide plate 7. The elastic element 6 is disposed on the slide plate 7. Between the plate 7 and the bracket 5, the elastic element 6 is a tension spring. The bracket 5 is provided with a first track groove 501. When the slide plate 7 slides, it drives the hook 8 to move on the first track groove 501. The synchronization component is provided on the bracket 5, which includes a synchronization member and a paddle 11. The synchronization member includes a transmission member 9 and a sliding piece 10. The sliding piece 10 is linked with the transmission member 9 and the paddle 11 respectively. The transmission members 9 of the two synchronization components are connected by a synchronization rod 13. The first track groove 501 is provided with a first locking position 501-1 and an unlocking position 501-2. When the drawer is closed, the movable rail 3 drives the slide plate assembly forward. When the slide plate 7 drives the hook 8 to the corresponding position, the hook 8 acts on the sliding plate 10 to push the sliding plate 10 forward. Then, the sliding plate 10 drives the transmission component 9 and the lever 11 to rotate, so that the lever 11 rotates to the locked position b, thereby realizing the reset of the synchronization component. At this time, the synchronization component is in the locked state. The left and right transmission components 9 are connected through the synchronization rod 13 to keep the reset action of the left and right synchronization components synchronized. The transmission component 9 drives the transmission component 9 of another synchronization component to rotate through the synchronization rod 13. When the drawer is pressed open, the slide plate 7 drives the hook 8 from the first locking position 501-1 to the unlocking position 501-2. After the drawer is released, the slide plate 7 drives the hook 8 to retract under the elastic force of the elastic element 6, so that the hook 8 acts on the lever 11, thereby causing the lever 11 to rotate to the unlocking position a. The lever 11 drives the sliding piece 10 to retract, and the sliding piece 10 drives the transmission component 9 to rotate, so as to unlock the synchronous component. The transmission component 9 drives another synchronous component to unlock synchronously through the synchronous rod 13 (the transmission component 9 drives the transmission component 9 of the other synchronous component to rotate through the synchronous rod 13), thereby causing the slide plate 7 of the other rebound device 2 to rebound synchronously under the elastic force of the elastic element 6.

[0048] When any one of the three components—paddle 11, sliding plate 10, and transmission component 9—is activated, it will drive the other two components to move.

[0049] The first track slot 501 is provided with an intermediate position 501-3; The hook 8 pushes the sliding piece 10 forward and then moves to the middle position 501-3. When the drawer is released, the slide plate 7 drives the hook 8 backward under the elastic force of the elastic element 6, so that the hook 8 moves to the first locking position 501-1. The hook 8 is locked in the first locking position 501-1 by the lever 11, thereby locking the drawer.

[0050] The first track groove 501 is provided with a second locking position 501-4 and a forward passage 501-5. The bracket 5 is provided with an arc-shaped guide part 506. The forward passage 501-5 is located between the arc-shaped guide part 506 and the second locking position 501-4. When the slide plate 7 drives the hook 8 forward to the forward passage 501-5 and the drawer is released, the slide plate 7 drives the hook 8 backward under the elastic force of the elastic member 6, so that the hook 8 moves to the second locking position 501-4.

[0051] The first track groove 501 is provided with a reversing channel 501-6 and a clearance position 501-7, and the paddle 11 is provided with a guide surface 1101; After the hook 8 pushes the lever 11 to the unlock position a, the retraction channel 501-6 is opened. The hook 8 continues to retract and enters the retraction channel 501-6, and then retracts along the retraction channel 501-6 back to the open position c. At this time, the drawer is in the open state. When the hook 8 is in the retraction channel 501-6 and the lever 11 is rotated to the locked position b, the drawer is pushed forward, the slide plate 7 drives the hook 8 forward, and when the hook 8 moves to the corresponding position, it contacts the guide surface 1101 and slides into the clearance position 501-7 along the guide surface 1101. When the hook 8 is in the clearance position 501-7 and the drawer is released, the slide plate 7, under the elastic force of the elastic element 6, drives the hook 8 to move backward, so that the hook 8 enters the retraction channel 501-6 and moves back to the open position c along the retraction channel 501-6.

[0052] The first locking position 501-1, the unlocking position 501-2, the middle position 501-3, the second locking position 501-4, the forward channel 501-5, the backward channel 501-6, and the avoidance position 501-7 are part of the first track groove 501.

[0053] The hook 8 is provided with a sliding post 801, which is slidably disposed on the first track groove 501. The sliding piece 10 is provided with a first protrusion 1001, which is provided with a reset arc surface 1002. The bracket 5 is provided with a sliding hole groove 504, which is provided with a blocking groove 505 at one end. The first protrusion 1001 slides between the sliding hole groove 504 and the blocking groove 505. The bracket 5 is provided with an arc-shaped guide part 506, which is located between the sliding hole groove 504 and the blocking groove 505. When the slide plate 7 drives the hook 8 forward to the corresponding position, the sliding column 801 acts on the reset arc surface 1002 of the first protrusion 1001 to push the first protrusion 1001 to slide forward along the sliding hole groove 504 and enter the blocking groove 505. The sliding column 801 enters the middle position 501-3 along the arc guide part 506. When the drawer is released, the slide plate 7 drives the hook 8 to retract under the elastic force of the elastic member 6 so that the sliding column 801 slides to the first locking position 501-1.

[0054] The paddle 11 is provided with a second protrusion 1102, and the second protrusion 1102 is provided with a first locking surface 1103 and an unlocking surface 1104. The bracket 5 is provided with a second locking surface 5011 and a fan-shaped sliding hole 5010. When the paddle 11 rotates, the second protrusion 1102 is limited and slidably disposed on the sliding hole 5010. The unlocking position a is located at one end of the sliding hole 5010, and the locking position b is located at the other end of the sliding hole 5010. When the second protrusion 1102 slides to the locking position b, an angle is formed between the first locking surface 1103 and the second locking surface 5011, thus forming the first locking position 501-1. When the sliding post 801 slides to the first locking position 501-1, it is jointly abutted by the first locking surface 1103 and the second locking surface 5011, so that the sliding post 801 is locked on the first locking position 501-1. When the drawer is pressed open, the sliding column 801 moves from the first locking position 501-1 to the unlocking position 501-2. After the drawer is released, the slide plate 7 drives the hook 8 to retract under the elastic force of the elastic element 6. When the hook 8 moves to the corresponding position, the sliding column 801 acts on the unlocking surface 1104 to make the paddle 11 rotate, and the second protrusion 1102 moves to the unlocking position a.

[0055] When the drawer is closed, the slide plate 7 is pushed forward by the movable rail 3, which drives the hook 8 forward. When the hook 8 moves to the corresponding position, the sliding column 801 acts on the reset arc surface 1002 to push the sliding piece 10 forward. Then the sliding piece 10 drives the transmission component 9 and the paddle 11 to rotate, so that the second protrusion 1102 moves to the locking position b.

[0056] When the second protrusion 1102 slides to the locking position b, the second protrusion 1102 is located between the unlocking position 501-2 and the retraction channel 501-6, so that the unlocking position 501-2 and the retraction channel 501-6 are not connected to each other; when the second protrusion 1102 slides to the unlocking position a, the unlocking position 501-2 and the retraction channel 501-6 are connected to each other.

[0057] The skateboard assembly also includes a slider 12 and a buffer block 14. The slider 12 is rotatably mounted on the skateboard 7. The bracket 5 is provided with a second track groove 502. When the skateboard 7 slides, it drives the slider 12 to move on the second track groove 502. The second track groove 502 includes a rear sliding section 502-1, a front sliding section 502-2 and a turning position 502-3. The turning position 502-3 is located between the rear sliding section 502-1 and the front sliding section 502-2. The slider 12 is provided with a limit hook 1201, and the movable rail 3 is provided with an action member 1. After the drawer is opened, the slider 12 is located on the rear sliding section 502-1, and the limit hook 1201 is hidden inside the rebound device 2; When the drawer is closed, the movable rail 3 pushes the slide plate assembly forward through the actuating element 1. The slider 12 slides from the rear sliding section 502-1 through the turning position 502-3 to the front sliding section 502-2. The limiting hook 1201 extends out of the rebound device 2, and the actuating element 1 is limited between the limiting hook 1201 and the buffer block 14. When the actuating element 1 of the movable rail 3 is locked by the limiting hook 1201 of the slider 12, and the sliding column 801 of the hook 8 runs to the first locking position 501-1 and is locked, the movable rail 3 and the drawer are also locked at the same time. When the drawer is opened, the sliding plate 7 pushes the movable rail 3 relative to the fixed rail 4 to open backward through the action member 1.

[0058] The slide plate 7 is provided with a buffer arm 701 at one end, and the bracket 5 is provided with a limiting part 503 at one end. When the drawer is opened, the slide plate 7 acts on the limiting part 503 through the buffer arm 701 under the elastic force of the elastic element 6. The buffer arm 701 can prevent the slide plate 7 from colliding with the bracket 5 when it moves backward and causing damage to both. The buffer block 14 is fixed on the slide plate 7; when the drawer is closed, the movable rail 3 acts on the buffer block 14 through the actuating element 1 to make the slide plate assembly slide forward; when the drawer is opened, the slide plate 7 acts on the actuating element 1 through the buffer block 14 to push the movable rail 3 to open backward relative to the fixed rail 4.

[0059] The actuating element 1 is either a push block 101 or a dial pin 102; the dial pin 102 is provided with an actuating post 103. When the drawer is closed, the dial pin 102 acts on the buffer block 14 through the actuating post 103; when the drawer is opened, the slide plate assembly acts on the actuating post 103 through the buffer block 14; the push block 101 is provided on the slide rail front and rear adjuster.

[0060] A lever 1202 is provided on the slider 12, and the lever 1202 is slidably disposed on the second track groove 502.

[0061] The bracket 5 is provided with a sloping guide 507 at the position corresponding to the first locking position 501-1; when the drawer is pressed open, the slide plate 7 drives the hook 8 to move forward so that the sliding column 801 slides into the unlocking position 501-2 along the sloping guide 507.

[0062] The transmission component 9 is a gear connector. The transmission component 9 is provided with a first transmission tooth 903. The sliding plate 10 is provided with a first rack 1003 and a second rack 1004. The paddle 11 is provided with a second transmission tooth 1106. The first rack 1003 meshes with the first transmission tooth 903, and the second rack 1004 meshes with the second transmission tooth 1106, so that the sliding plate 10 is linked with the transmission component 9 and the paddle 11 respectively.

[0063] Drawer closing process: Push the drawer, the moving rail 3 slides forward, the actuating element 1 pushes the buffer block 14 of the rebound device 2, and drives the slide plate assembly to slide forward; when the sliding post 801 of the hook 8 touches the reset arc surface 1002 on the sliding plate 10, it will push the sliding plate 10 forward. The synchronous components on both sides of the drawer complete the synchronous reset through the linkage of the synchronous rod 13 and the mutual meshing of the transmission element 9, the sliding plate 10 and the paddle 11; the drawer is pushed to the end and the hand is released, the sliding post 801 of the hook 8 slides to the first locking position 501-1 and is locked by the locking surface 1103 of the paddle 11. At this time, the drawer completes the closing action.

[0064] Drawer opening process: Press any position on the drawer panel, push forward a short distance, and then release. The sliding post 801 of the hook 8 hooks onto the unlocking surface 1104 of the lever 11. Under the action of the tension spring, the lever 11 is rotated at an angle, making way for the sliding post 801 of the hook 8, allowing the slide plate assembly to continue sliding backward. Through the linkage of the actuator 1, the slide rail assembly is opened. In this process, even if one side is triggered to unlock first, because the two sides are linked by the synchronizing rod, the unlocking action of one side can be quickly transmitted to the other side, completing the synchronous unlocking and opening of the drawer, avoiding jamming and failure.

[0065] The rebound device 2 also includes a base plate 15. The bracket 5 is fixed to the base plate 15 by a buckle. The base plate 15 is provided with a connecting buckle 1501 and a locking buckle 1502. The fixed rail 4 is provided with a first buckle hole 401 and a second buckle hole 402. The connecting buckle 1501 is fastened to the first buckle hole 401, and the locking buckle 1502 is fastened to the second buckle hole 402, so that the base plate 15 is fixed to the fixed rail 4.

[0066] The rebound device 2 also includes an upper cover 16 and a lower cover 17. The skateboard assembly is installed in the internal space formed by the bracket 5 and the upper cover 16. The synchronization assembly is installed in the internal space formed by the bracket 5, the upper cover 16, and the lower cover 17. The upper cover 16 and the lower cover 17 are fixedly installed to the bracket 5 by buckles.

[0067] The skateboard 7 is provided with a first rotating shaft 702, and the hook 8 is provided with a first rotating hole 802. The first rotating shaft 702 is rotatably connected to the first rotating hole 802 so that the hook 8 is rotatably mounted on the skateboard 7.

[0068] The slide plate 7 is provided with a second rotating shaft 703, and the slider 12 is provided with a second rotating hole 1203. The second rotating shaft 703 is rotatably connected to the second rotating hole 1203 so that the slider 12 is rotatably mounted on the slide plate 7.

[0069] The bracket 5 is provided with a semi-circular rotating groove 508, and the transmission component 9 is provided with a rotating shaft 901, which is rotatably mounted on the rotating groove 508.

[0070] The transmission component 9 is provided with a plug hole 902, and the left and right ends of the synchronizing rod 13 are respectively plugged into the corresponding plug hole 902.

[0071] The bracket 5 is provided with a third rotating shaft 509, and the paddle 11 is provided with a third rotating hole 1105. The third rotating shaft 509 is rotatably connected to the third rotating hole 1105 so that the paddle 11 is rotatably mounted on the bracket 5.

[0072] The working principle of this hidden track synchronous rebound device: like Figure 15 , Figure 16As shown, when the drawer is open, the synchronization component is in the unlocked state, the first protrusion 1001 is fully exposed from the sliding groove hole 504, and the second protrusion 1102 is in the fully open position; the slide assembly is in the first position A, and the slide assembly is pulled by the elastic element 6, and the buffer arm 701 of the slide 7 rests on the limiting part 503 of the bracket 5; the lever 1202 of the slider 12 is located behind the turning position 502-3 of the second track groove 502, that is, on the rear sliding section 502-1, and the limiting hook 1201 of the slider is hidden inside the rebound device 2; like Figure 17 , Figure 18 As shown, when the drawer is closed, the sliding plate assembly is moved from the first position A to the second position B via the movable rail 3. During this process, the pin 1202 of the slider 12 passes through the turning position 502-3 of the second track groove 502, and the limiting hook 1201 of the slider 12 extends out of the rebound device 2 to provide a limit for the action pin 103 of the push block 101 or the pin 102. The sliding pin 801 of the hook 8 reaches the reset arc surface 1002 of the sliding piece 10 along the first track groove 501 and contacts it. From here, the reset action of the synchronization component will be triggered. The function of the slider 12 is to hook the push block 101 or the pin 102, so that the movable rail 3, the drawer and the sliding plate assembly are connected together. When the hook 8 of the sliding plate assembly is locked in the first locking position 501-1, the movable rail 3 and the drawer are also locked, so that they cannot be pulled out directly. like Figure 19 , Figure 20 As shown, the drawer continues to close forward, the slide assembly slides from the second position B to the third position C, and the synchronization assembly completes the reset action; during this process, the sliding post 801 of the hook 8 pushes against the reset arc surface 1002 of the sliding piece 10, causing the sliding piece 10 to slide forward until the first protrusion 1001 of the sliding piece 10 is hidden in the blocking groove 505 of the bracket 5; the sliding piece 10 moves forward, and through the meshing of the teeth, drives the paddle 11 and the transmission component 9 to rotate, causing the second protrusion 1102 of the paddle 11 to move to the locking position b; at the same time, the transmission components 9 on both sides are connected through the synchronization rod 13, so that the synchronization components on both sides keep the synchronization assembly reset synchronously; after the synchronization assembly completes the reset action, the sliding post 801 of the hook 8 contacts the arc-shaped guide part 506 of the bracket 5; like Figure 21 , Figure 22 As shown, when closing the drawer, during the process of the slide assembly moving from the first position A to the third position C, if the sliding post 801 of the hook 8 is released while it is in the forward passage 501-5, under the pulling force of the elastic element 6, the slide assembly will drive the movable rail 3 and the drawer to move backward and open; the sliding post 801 of the hook 8 moves backward along the forward passage 501-5 and is locked when it reaches the second locking position 501-4 to prevent the drawer from continuing to move backward and hitting a person; at this time, the slide assembly moves backward to the fourth position D; like Figure 23 , Figure 24 As shown, during the process of closing the drawer, when the sliding post 801 of the hook 8 reaches the third position C, the drawer is pushed forward. The sliding post 801 enters the middle position 501-3 of the first track groove 501 along the arc guide 506 of the bracket 5. Then, after the drawer is pushed to the end, the hand is released. Under the pulling force of the elastic element 6, the slide plate assembly moves back to the fifth position E. The sliding post 801 of the hook 8 is locked by the first locking surface 1103 of the paddle 11 and the second locking surface 5011 of the bracket 5, thus completing the drawer closing action. like Figure 25 , Figure 26 As shown, when the drawer is closed, pressing any position on the drawer panel causes the movable rail 3 to move the slide assembly forward a short distance, causing the sliding post 801 of the hook 8 to slide along the inclined guide 507 of the bracket 5 into the unlocking position 501-2 of the first track groove 501. After the drawer is pushed to the end and the hand is released, the slide assembly retracts to the sixth position F under the pulling force of the elastic element 6. The sliding post 801 of the hook 8 contacts the unlocking surface 1104 of the paddle 11, and from here the unlocking action of the synchronization component will be triggered. like Figure 27 , Figure 28 As shown, after the skateboard assembly retracts to the sixth position F, the sliding post 801 of the hook 8 acts on the unlocking surface 1104 of the paddle 11, causing the paddle 11 to rotate around the third pivot 509 of the bracket 5. Finally, the second protrusion 1102 of the paddle 11 slides to the unlocking position a, clearing a path for the hook 8 to continue retracting. At this point, the skateboard assembly retracts to the seventh position G. During this process, due to the meshing of the teeth, the first protrusion 1001 of the sliding piece 10 also completely retracts from the blocking groove 505 of the bracket 5, driving the transmission component 9 to rotate, and the synchronous assembly completes the unlocking action. Because the left and right transmission components 9 are connected by the synchronous rod 13, this allows... Even if one side triggers the unlocking action first, the unlocking action can be quickly transmitted to the other side via the synchronizing rod 13, so that the left and right synchronizing components keep unlocking synchronously and avoid the failure situation where one side unlocks while the other cannot (because when opening the drawer, it is impossible to press the exact center of the drawer panel every time. When pressing the corner of the drawer panel, the rebound device 2 on one side may trigger the unlocking action first. Therefore, the function of the synchronizing component is to ensure that the rebound devices 2 on both sides can unlock synchronously even when pressing the corner). Then the slide assembly and the moving rail 3 continue to move backward, and the slide assembly will return to the first position A, completing one cycle. like Figure 29 , Figure 30As shown, in some special cases, such as during installation, when the sliding post 801 of the hook 8 is in the retraction channel 501-6 of the first track groove 501 (at this time, the slide assembly is in the eighth position H), if the synchronization component is accidentally twisted to the locked state (i.e., the second protrusion 1102 moves to the locked position b), if the drawer is pushed forward, the sliding post 801 of the hook 8 will slide into the avoidance position 501-7 of the first track groove 501 after contacting the guide surface 1101 of the paddle 11, so as to avoid the hook 8 hitting the second protrusion 1102 of the paddle 11 and causing structural damage; after releasing the hand, the slide assembly and the moving rail 3 will switch back to the retraction state, the sliding post 801 of the hook 8 passes through the retraction channel 501-6 of the first track groove 501, and the slide assembly finally returns to the first position A.

[0073] The above describes the preferred embodiments of the present invention, illustrating and describing the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hidden track synchronous rebound device, characterized in that: The synchronous rebound device includes a rebound device (2) and a synchronous rod (13). The rebound device (2) includes a bracket (5), a slide plate assembly and a synchronous assembly. The slide plate assembly includes a slide plate (7) and a hook (8). The slide plate (7) is slidably mounted on the bracket (5), and the hook (8) is rotatably mounted on the slide plate (7). The bracket (5) is provided with a first track groove (501). When the slide plate (7) slides, it drives the hook (8) to move on the first track groove (501). The synchronous assembly is mounted on the bracket (5) and includes a synchronous component and a paddle (11) that are linked together. When the skateboard (7) drives the hook (8) to the corresponding position, the hook (8) acts on the synchronization component, causing the synchronization component to drive the paddle (11) to move to the locking position (b), thereby realizing the reset of the synchronization component. The left and right synchronization components are connected by the synchronization rod (13) so that the reset action of the left and right synchronization components is kept synchronized. When the skateboard (7) drives the hook (8) to move backward, the hook (8) pushes the paddle (11) to the unlock position (a), and the paddle (11) drives the synchronization component to the initial position to unlock the synchronization component. The synchronization component drives another synchronization component to unlock synchronously through the synchronization rod (13), thereby enabling the skateboard (7) of the other rebound device (2) to rebound synchronously under the action of elasticity.

2. The hidden track synchronous rebound device according to claim 1, characterized in that: The hidden rail includes slide rail assemblies respectively set on both sides of the drawer. The slide rail assembly includes a movable rail (3) and a fixed rail (4) that are slidably connected to each other. The rebound device (2) is set on the fixed rail (4). The rebound device (2) also includes an elastic element (6). The elastic element (6) is set between the slide plate (7) and the bracket (5). The synchronization component includes a transmission component (9) and a sliding piece (10). The sliding piece (10) is linked with the transmission component (9) and the paddle (11) respectively. The left and right transmission components (9) are connected by a synchronization rod (13). The first track groove (501) is provided with a first locking position (501-1), an unlocking position (501-2) and a middle position (501-3). When the drawer is closed, the movable rail (3) drives the slide plate assembly forward. When the slide plate (7) drives the hook (8) forward to the corresponding position, the hook (8) acts on the sliding piece (10) to push the sliding piece (10) forward. Then the sliding piece (10) drives the transmission component (9) and the paddle (11) to rotate, so that the paddle (11) rotates to the locking position (b) to realize the reset of the synchronous component. After the hook (8) pushes the sliding piece (10) forward, it moves to the middle position (501-3). When the drawer is released, the slide plate (7) drives the hook (8) backward under the elastic force of the elastic component (6) so that the hook (8) moves to the first locking position (501-1) to realize the locking of the drawer. When the drawer is pressed open, the slide plate (7) drives the hook (8) from the first locking position (501-1) to the unlocking position (501-2). After the drawer is released, the slide plate (7) drives the hook (8) to move backward under the elastic force of the elastic element (6), so that the hook (8) acts on the lever (11), thereby causing the lever (11) to rotate to the unlocking position (a). The lever (11) drives the sliding piece (10) to move backward, and the sliding piece (10) drives the transmission element (9) to rotate, so as to realize the unlocking of the synchronous component.

3. The hidden track synchronous rebound device according to claim 2, characterized in that: The first track groove (501) is provided with a second locking position (501-4) and a forward passage (501-5). The bracket (5) is provided with an arc-shaped guide (506). The forward passage (501-5) is located between the arc-shaped guide (506) and the second locking position (501-4). When the slide plate (7) drives the hook (8) forward to the forward passage (501-5) and the drawer is released, the slide plate (7) drives the hook (8) backward under the elastic force of the elastic element (6) so that the hook (8) moves to the second locking position (501-4).

4. The hidden track synchronous rebound device according to claim 2, characterized in that: The first track groove (501) is provided with a reversing channel (501-6) and a clearance position (501-7), and the paddle (11) is provided with a guide surface (1101). After the hook (8) pushes the lever (11) to rotate to the unlock position (a), the retraction channel (501-6) is opened, the hook (8) retracts and enters the retraction channel (501-6), and retracts along the retraction channel (501-6) back to the open position (c). When the hook (8) is in the back passage (501-6) and the lever (11) is rotated to the locked position (b), the drawer is pushed forward, the slide (7) drives the hook (8) forward, and when the hook (8) moves to the corresponding position, it contacts the guide surface (1101) and slides into the clearance position (501-7) along the guide surface (1101). When the hook (8) is in the clearance position (501-7) and the drawer is released, the slide (7) drives the hook (8) to move backward under the elastic force of the elastic element (6), so that the hook (8) enters the retraction channel (501-6) and moves back to the open position (c) along the retraction channel (501-6).

5. The hidden track synchronous rebound device according to claim 2, characterized in that: A sliding post (801) is provided on the hook (8), and the sliding post (801) is slidably disposed on the first track groove (501). A first protrusion (1001) is provided on the sliding piece (10). A sliding hole groove (504) is provided on the bracket (5). A blocking groove (505) is provided at one end of the sliding hole groove (504). The first protrusion (1001) slides between the sliding hole groove (504) and the blocking groove (505). An arc-shaped guide part (506) is provided on the bracket (5). The arc-shaped guide part (506) is located between the sliding hole groove (504) and the blocking groove (505). When the slide plate (7) drives the hook (8) forward to the corresponding position, the sliding column (801) pushes the first protrusion (1001) so that the first protrusion (1001) slides forward along the sliding hole groove (504) and enters the blocking groove (505). The sliding column (801) enters the middle position (501-3) along the arc-shaped guide (506). When the drawer is released, the slide plate (7) drives the hook (8) backward under the elastic force of the elastic element (6) so that the sliding column (801) slides to the first locking position (501-1).

6. The hidden track synchronous rebound device according to claim 5, characterized in that: The paddle (11) is provided with a second protrusion (1102), the second protrusion (1102) is provided with a first locking surface (1103) and an unlocking surface (1104), the bracket (5) is provided with a second locking surface (5011) and a fan-shaped sliding hole (5010), the second protrusion (1102) is limited to slide on the sliding hole (5010), the unlocking position (a) is located at one end of the sliding hole (5010), and the locking position (b) is located at the other end of the sliding hole (5010); When the second protrusion (1102) slides to the locking position (b), a first locking position (501-1) is formed between the first locking surface (1103) and the second locking surface (5011). When the sliding post (801) slides to the first locking position (501-1), it is jointly blocked by the first locking surface (1103) and the second locking surface (5011) so that the sliding post (801) is locked on the first locking position (501-1). When the drawer is pressed open, the sliding column (801) moves from the first locking position (501-1) to the unlocking position (501-2). After the drawer is released, the slide plate (7) drives the hook (8) to retract under the elastic force of the elastic element (6). When the hook (8) moves to the corresponding position, the sliding column (801) acts on the unlocking surface (1104) to make the paddle (11) rotate, and the second protrusion (1102) moves to the unlocking position (a).

7. The hidden track synchronous rebound device according to claim 2, characterized in that: The skateboard assembly also includes a slider (12) and a buffer block (14). The slider (12) is rotatably mounted on the skateboard (7). A second track groove (502) is provided on the bracket (5). When the skateboard (7) slides, it drives the slider (12) to move on the second track groove (502). The second track groove (502) includes a rear sliding section (502-1), a front sliding section (502-2), and a turning position (502-3). The turning position (502-3) is located between the rear sliding section (502-1) and the front sliding section (502-2). A limit hook (1201) is provided on the slider (12), and an action member (1) is provided on the movable rail (3). After the drawer is opened, the slider (12) is located on the rear sliding section (502-1), and the limit hook (1201) is hidden inside the rebound device (2); When the drawer is closed, the movable rail (3) pushes the slide plate assembly forward through the action (1), and the slider (12) slides from the rear sliding section (502-1) through the turning position (502-3) to the front sliding section (502-2). The limit hook (1201) extends out of the rebound device (2), and the action (1) is limited between the limit hook (1201) and the buffer block (14). When the action (1) of the movable rail (3) is locked by the limit hook (1201) of the slider (12) and the sliding column (801) of the hook (8) runs to the first locking position (501-1) and is locked, the movable rail (3) and the drawer are also locked at the same time. When the drawer is opened, the slide (7) pushes the movable rail (3) relative to the fixed rail (4) to open backward through the action (1).

8. The hidden track synchronous rebound device according to claim 7, characterized in that: The slide (7) is provided with a buffer arm (701) at one end and a limit part (503) at one end of the bracket (5); after the drawer is opened, the slide (7) acts on the limit part (503) through the buffer arm (701) under the elastic force of the elastic element (6); The buffer block (14) is fixed on the slide plate (7); when the drawer is closed, the movable rail (3) acts on the buffer block (14) through the actuator (1) to make the slide plate assembly slide forward; when the drawer is opened, the slide plate (7) acts on the actuator (1) through the buffer block (14) to push the movable rail (3) to open backward relative to the fixed rail (4).

9. The hidden track synchronous rebound device according to claim 5, characterized in that: The bracket (5) is provided with a sloping guide (507) at the position corresponding to the first locking position (501-1); when the drawer is pressed open, the slide plate (7) drives the hook (8) to move forward so that the sliding column (801) slides into the unlocking position (501-2) along the sloping guide (507).

10. The hidden track synchronous rebound device according to any one of claims 2-9, characterized in that: The transmission component (9) is a gear connector. The transmission component (9) is provided with a first transmission tooth (903). The sliding plate (10) is provided with a first rack (1003) and a second rack (1004). The paddle (11) is provided with a second transmission tooth (1106). The first rack (1003) meshes with the first transmission tooth (903), and the second rack (1004) meshes with the second transmission tooth (1106) so that the sliding plate (10) is linked with the transmission component (9) and the paddle (11) respectively.

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