Dual function buffer bounce synchronization device for drawer slide rails

Abstract

The application provides a dual-function buffer bounce synchronization device for a drawer slide rail, which comprises a left bounce component and a right bounce component, and the left bounce component and the right bounce component are each provided with a poking piece, a bounce sliding assembly and a synchronous transmission component, the synchronous transmission component comprises a synchronous transmission rod, a synchronous connecting rod and a synchronous linkage assembly, the bounce sliding assembly is provided with an elastic limiting piece, and the left bounce component and the right bounce component are provided with a limiting guide path; the bounce sliding assembly respectively pushes the sliding part of the synchronous linkage assembly to move forward, the front end of the left bounce component and the right bounce component is provided with a transmission guide path, the synchronous transmission rod pushes the sliding part of the synchronous linkage assembly to move backward while being oriented to bounce and slide on the transmission guide path, the structure is compact, the synchronization locking and unlocking are facilitated, the linkage stability of the pushing and pressing bounce actions is enhanced, the problems such as jamming are effectively avoided, the opening and closing double-buffering effects are achieved, and the product quality is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drawer slide rails, in particular to a dual-function buffer and rebound synchronization device for drawer slide rails. BACKGROUND

[0002] The functional accessories commonly used in slide rails include damping devices and pressing rebound devices. The damping device is used to store energy when the slide rail is opened, and automatically buffers the slide rail to be pulled back to close after the slide rail is closed to a certain extent. The pressing rebound device is used to store energy when the slide rail is closed, and leaves a space for pressing and unlocking. By pressing the drawer, the drawer and other pull-out furniture are unlocked and rebounded, realizing the automatic pop-up of the pull-out furniture, which is very convenient to use and improves the use safety.

[0003] According to the working principles of the damping device and the rebound device, the existing slide rail simultaneously realizes the damping closing and pressing rebound functions, and thus the damping device and the rebound device need to be structurally matched.

[0004] However, the existing pressing rebound device has the following deficiencies when matched with the damping device:

[0005] 1) The pressing rebound device has a complex structure, which leads to poor structural matching stability of the rebound device and the damping device, and is prone to jamming and other problems.

[0006] 2) The rebound device is prone to excessive speed under the rebounding action, which poses a safety hazard.

[0007] 3) The pressing rebound devices of the two groups of slide rails are not synchronized in action, which easily leads to the failure of the slide rails to be synchronously locked or unlocked, causing the slide rails to be tilted and jammed due to unbalanced force, poor stability, and increased failure rate of the slide rails.

[0008] 4) Due to the unsynchronized action of the pressing rebound devices of the two groups of slide rails, the pressing rebound devices are prone to unstable connection between the pushing and pressing rebound actions, and there is mutual interference between the components, which also leads to the jamming of the pressing rebound devices. SUMMARY

[0009] The present application aims to overcome the deficiencies of the prior art and provide a dual-function buffer and rebound synchronization device for drawer slide rails, which has a compact structure, is synchronized in locking and unlocking, has stable connection between the pushing and pressing rebound actions, effectively avoids the problems such as jamming, has the effects of double buffering for opening and closing, reduces safety hazards, and ensures the use quality of the product.

[0010] The application aims at achieving the following technical scheme: a dual-function buffer bounce synchronization device for a drawer slide rail, comprising a left bounce component and a right bounce component installed between the slide rail and the drawer, wherein each of the left bounce component and the right bounce component is provided with a toggle piece, a bounce sliding assembly and a synchronization transmission component, the synchronization transmission component comprises a synchronization transmission rod, a synchronization connecting rod and a synchronization linkage assembly,

[0011] The toggle piece is movably connected to the left bounce component and the right bounce component and is connected to or separated from the movable rail buckle of the slide rail when the drawer is opened or closed, the bounce sliding assembly is provided with an elastic limiting piece for limiting the movement and dislocation separation of the toggle piece, the elastic limiting piece is elastically stretched on the bounce sliding assembly and is connected to or separated from the toggle piece, and the left bounce component and the right bounce component are provided with a limiting guide path for directional sliding, fixed-point locking and bounce sliding of the elastic limiting piece.

[0012] The two ends of the synchronization connecting rod are respectively installed on the swing part of the synchronization linkage assembly, the sliding part of the synchronization linkage assembly is slidably connected to the left bounce component and the right bounce component, the bounce sliding assembly pushes the sliding part of the synchronization linkage assembly to move forward while moving forward in the left bounce component and the right bounce component, the front end of the left bounce component and the right bounce component is provided with a transmission guide path, the synchronization transmission rod is installed on the elastic end of the bounce sliding assembly and directionally bounces and slides on the transmission guide path under the pressing bounce action of the bounce sliding assembly, so as to push the sliding part of the synchronization linkage assembly to move backward.

[0013] According to the above optimization, the slide rail is provided with a closing buffer having a closing buffer function, the cylinder body of the closing buffer is installed on the fixed rail of the slide rail, the pushing rod of the closing buffer is connected to the movable rail of the slide rail, the bounce sliding assembly is provided with a bounce deceleration block having a bounce deceleration function, and the bounce deceleration block is slidably connected to the left bounce component and the right bounce component.

[0014] According to the above optimization, the left bounce component and the right bounce component each comprise a bounce fixing plate and a bounce base plate, the bounce fixing plate is installed on the fixed rail of the slide rail, and the bounce base plate is slidably connected to the bounce fixing plate, the toggle piece and the bounce sliding assembly are slidably connected to the bounce base plate, and the bounce base plate is provided with a limiting guide path and a transmission guide path.

[0015] According to the above optimization, the bounce base plate is provided with a first guide rail for the sliding of the toggle piece and a second guide rail for the sliding of the bounce sliding assembly, the limiting guide path is arranged between the first guide rail and the second guide rail, and the transmission guide path is arranged above the second guide rail.

[0016] According to the above optimization, the limiting guide path is provided with a spring, which separates the limiting guide path into a directional guide groove for the elastic limiting member to slide with the sliding rail closed, an inclined sliding groove for the elastic limiting member to be compressed to slide freely with the toggle piece, a fixed-point clamping groove for the elastic limiting member to be locked with the rebound sliding assembly, and an inclined guide groove for the elastic limiting member to slide back with the rebound sliding assembly unlocked.

[0017] The elastic limiting member is provided with a limiting pin for sliding in the directional guide groove, the inclined sliding groove, the fixed-point clamping groove, and the inclined guide groove in sequence with the opening and closing of the sliding rail.

[0018] According to the above optimization, the toggle piece is provided with an initial upper connection level for connecting with the elastic limiting member in an open initial state, and a rebound lower connection level for connecting with the rebound sliding assembly in a rebound opening process, and the initial upper connection level and the rebound lower connection level are distributed in sequence from inside to outside on the inside of the toggle piece.

[0019] According to the above optimization, the rebound sliding assembly includes a rebound sliding block and a spring member, the rebound sliding block is slidingly connected to the second guide rail, one end of the spring member is buckled to the rebound fixed plate, the other end of the spring member is buckled to the rebound sliding block, the elastic limiting member is elastically stretched and contracted on the rebound sliding block, and the rebound sliding block is provided with a pushing link for pushing the synchronous linkage assembly to move forward with the sliding rail closed.

[0020] According to the above optimization, the synchronous linkage assembly includes a synchronous sliding block, a linkage swing lever, and a synchronous connection sleeve, the synchronous sliding block slides on the rebound base plate of the left rebound component, the lower swing end of the linkage swing lever is clamped to the synchronous sliding block, the upper swing end of the linkage swing lever is installed on the synchronous connection sleeve, and the synchronous connection sleeve is sleeved on the left and right ends of the synchronous connecting rod, respectively.

[0021] According to the above optimization, the transmission guide path includes a transmission directional groove for the synchronous transmission rod to slide forward, a transmission positioning groove for the synchronous transmission rod to slide back and be connected to the synchronous sliding block at a fixed point, and a transmission inclined groove for the synchronous transmission rod to be dislocated and separated from the synchronous sliding block, and the transmission directional groove, the transmission positioning groove, and the transmission inclined groove are communicated in sequence.

[0022] The synchronous transmission rod is provided with a transmission positioning pin for slidingly connecting to the transmission directional groove, the transmission positioning groove, and the transmission inclined groove.

[0023] According to the above optimization, the rebound fixed plate is provided with a position adjusting member for adjusting the installation position of the rebound base plate, the position adjusting member includes an adjusting rotating wheel and an adjusting convex column, the adjusting convex column is arranged on the rebound fixed plate, the adjusting rotating wheel is rotationally connected to the rebound base plate, and the adjusting rotating wheel is provided with an adjusting spiral groove in sliding connection with the adjusting convex column.

[0024] The present application has the advantages of:

[0025] (1) By means of the cooperation of the limiting guide path and the push piece and the rebound sliding assembly, the push piece can drive the rebound sliding assembly to slide to the designated position during the closing of the drawer, the push piece is dislocated from the elastic limiting member to close the push piece under the cooperation of the closing buffer, and the closing buffer and the pressing rebound device are prevented from being stuck during the cooperation, the structure is compact, the structural stability is improved, and the use quality of the pressing rebound device is ensured.

[0026] (2) Under the action of the closing buffer and the rebound deceleration block, the rebound synchronous device has the opening and closing double buffering effect during the closing and rebound unlocking operation, and the use safety is improved.

[0027] (3) By means of the cooperation of the synchronous transmission rod, the synchronous connecting rod and the synchronous linkage assembly, the left rebound component and the right rebound component can be synchronously locked and unlocked, the sliding rail is prevented from being stuck due to the unbalanced force, the operation stability is improved, and the failure rate of the sliding rail is reduced.

[0028] (4) Under the cooperation of the transmission guide path and the synchronous transmission rod, the locking or pressing rebound action is smooth, unnecessary action interference between the components is reduced, the operation is stable and reliable, and the use quality of the product is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is an assembly diagram of the preferred embodiment of the present application.

[0030] Figure 2 It is a structure diagram of the preferred embodiment of the present application.

[0031] Figure 3 It is a structure diagram of the preferred embodiment of the present application in the opening initial state.

[0032] Figure 4 It is a structure diagram of the preferred embodiment of the present application in the pushing state.

[0033] Figure 5 It is a sectional view of the preferred embodiment of the present application in the pushing state.

[0034] Figure 6 It is a structure diagram of the preferred embodiment of the present application in the dislocation state.

[0035] Figure 7 It is a sectional view of the preferred embodiment of the present application in the dislocation state.

[0036] Figure 8 It is a partial enlarged view of the preferred embodiment of the present application. Figure 6

[0037] ​Figure 9 Structure diagram of the preferred embodiment of the present application in the closing state.

[0038] Figure 10 Sectional view of the preferred embodiment of the present application in the closing state.

[0039] Figure 11 Structure diagram of the preferred embodiment of the present application in the pressing action state.

[0040] Figure 12 Sectional view of the preferred embodiment of the present application in the pressing action state.

[0041] Figure 13 Exploded view of the synchronous transmission component of the preferred embodiment of the present application. DETAILED DESCRIPTION

[0042] The present application will be further described below with reference to the accompanying drawings.

[0043] According to the accompanying Figures 1 to 13 The dual-function buffer rebound synchronization device for drawer slide rails of the present application includes left rebound component 1 and right rebound component 2 installed between the slide rail and the drawer. The left rebound component 1 and the right rebound component 2 are each provided with a toggle piece 3, a rebound sliding assembly 4, and a synchronous transmission component.

[0044] The toggle piece 3 is movably connected to the left rebound component 1 and the right rebound component 2 and is coupled with or separated from the movable track buckle of the slide rail during the opening and closing of the drawer. The rebound sliding assembly 4 is provided with an elastic limiting piece 8 for limiting the movement and misalignment separation of the toggle piece 3. The elastic limiting piece 8 is elastically extended on the rebound sliding assembly 4 and is connected to or separated from the toggle piece 3. Moreover, the left rebound component 1 and the right rebound component 2 are provided with a limiting guide path 9 for the directional sliding, fixed-point locking, and rebound sliding of the elastic limiting piece 8.

[0045] The structure of the limiting guide path 9, the toggle piece 3, and the rebound sliding assembly 4 can make the toggle piece 3 drive the rebound sliding assembly 4 to slide during the closing of the drawer. When the toggle piece 3 is misaligned and separated from the elastic limiting piece 8 at the designated position, the left rebound component 1 and the right rebound component 2 are prevented from being stuck during the cooperation with other components during the opening and closing of the slide rail. The structure is compact, the structural stability is improved, and the quality of the pressing rebound device is ensured.

[0046] And, the synchronous transmission component includes a synchronous transmission rod 5, a synchronous connecting rod 6, and a synchronous linkage assembly 7. Two ends of the synchronous connecting rod 6 are respectively installed on swing parts of the synchronous linkage assembly 7, a sliding part of the synchronous linkage assembly 7 is slidingly connected on the left rebound component 1 and the right rebound component 2, and the rebound sliding assembly 4 respectively pushes the sliding part of the synchronous linkage assembly 7 to move forward while the left rebound component 1 and the right rebound component 2 move forward. The front end of the left rebound component 1 and the right rebound component 2 is provided with a transmission guide path 10, the synchronous transmission rod 5 is installed on the elastic end of the rebound sliding assembly 4 and is directed to rebound sliding on the transmission guide path 10 under the pressing rebound action of the rebound sliding assembly 4 to push the sliding part of the synchronous linkage assembly 7 to move backward.

[0047] Through the structure cooperation of the synchronous transmission component and the transmission guide path 10, the left rebound component 1 and the right rebound component 2 can be synchronously locked and unlocked, the sliding rail can be prevented from being tilted and stuck due to unbalanced force, the connection of the locking or pressing rebound action can be smooth, unnecessary action interference between components can be reduced, the operation is stable and reliable, and the use quality of the product is ensured.

[0048] Referring to Figure 1 and Figure 13 further refinement, the left rebound component 1 and the right rebound component 2 each include a rebound fixed plate 13 and a rebound base plate 14, the rebound fixed plate 13 is installed on the fixed rail of the sliding rail, the rebound base plate 14 is slidingly connected on the rebound fixed plate 13, the toggle piece 3 and the rebound sliding assembly 4 are respectively slidingly connected on the rebound base plate 14, and the rebound base plate 14 is provided with a limiting guide path 9 and a transmission guide path 10.

[0049] In actual application, the rebound base plate 14 is provided with a first guide rail 141 for the sliding of the toggle piece 3 and a second guide rail 142 for the sliding of the rebound sliding assembly 4, the limiting guide path 9 is arranged between the first guide rail 141 and the second guide rail 142, and the transmission guide path 10 is arranged above the second guide rail 142.

[0050] Moreover, the limiting guide path 9 is provided with an elastic piece 15. The elastic piece 15 divides the limiting guide path 9 into a directional guide groove 91 for the directional sliding of the elastic limiting piece 8 with the closing of the sliding rail, an inclined sliding groove 92 for the directional compression of the elastic limiting piece 8 for the free sliding of the toggle piece 3, a fixed-point clamping groove 93 for the fixed-point stay of the elastic limiting piece 8 for the locking of the rebound sliding assembly 4, and an inclined guide groove 94 for the rebound unlocking of the elastic limiting piece 8 for the directional rebound sliding. The elastic limiting piece 8 is provided with a limiting pin 16 for sequentially sliding in the directional guide groove 91, the inclined sliding groove 92, the fixed-point clamping groove 93, and the inclined guide groove 94 with the opening and closing of the sliding rail.

[0051] The toggle piece 3 is provided with an initial upper connecting level 31 for connecting with the elastic limiting piece 8 in the opening initial state, and a rebound lower connecting level 32 for connecting with the rebound sliding assembly 4 in the rebound opening process. The initial upper connecting level 31 and the rebound lower connecting level 32 are sequentially distributed from inside to outside on the inside of the toggle piece 3.

[0052] Further, the slide rail is provided with a closing buffer 11 having a closing buffer function, the cylinder body of the closing buffer 11 is installed on the fixed rail of the slide rail, and the pushing rod of the closing buffer 11 is buckled with the movable rail of the slide rail. The rebound sliding assembly 4 is provided with a rebound deceleration block 12 having a rebound deceleration function, and the rebound deceleration block 12 is slidingly connected on the left rebound component 1 and the right rebound component 2.

[0053] Further, the slide rail is provided with a closing buffer 11 having a closing buffer function, the cylinder body of the closing buffer 11 is installed on the fixed rail of the slide rail, and the pushing rod of the closing buffer 11 is buckled with the movable rail of the slide rail. The rebound sliding assembly 4 is provided with a rebound deceleration block 12 having a rebound deceleration function, and the rebound deceleration block 12 is slidingly connected on the left rebound component 1 and the right rebound component 2.

[0054] The working principle of the buffer rebound device of the structure is as follows:

[0055] When the drawer is closed, the toggle piece 3 is buckled with the movable rail of the slide rail and slides on the first guide rail 141 as the movable rail is closed. During this period, the elastic limiting piece 8 is connected with the initial upper connecting level 31 of the toggle piece 3 under the elastic action thereof, enters the initial limiting state, so as to make the limiting block slide in the slide rail closing direction along with the toggle piece 3, thereby driving the limiting pin 16 to slide in the directional guide groove 91, and the rebound sliding assembly 4 to slide on the second guide rail 142.

[0056] When the limiting pin 16 slides to the top of the inclined sliding groove 92, the elastic limiting piece 8 is compressed into the rebound sliding block 41, so that the elastic limiting piece 8 gradually moves away from the initial upper connecting level 31. When the limiting pin 16 passes through the inclined sliding groove 92, the limiting pin 16 is buckled on the fixed point buckle groove 93 under the elastic action of the elastic piece 15, and the elastic limiting piece 8 is in a misaligned state with the toggle piece 3, so that the toggle piece 3 is in a free sliding state on the first guide rail 141. Since the toggle piece 3 is buckled with the movable rail, the slide rail of the structure is provided with the closing buffer 11, so that the toggle piece 3 slowly moves inward on the first guide rail under the damping action of the closing buffer 11. During this period, the rebound sliding assembly 4 enters the rebound initial state under the reset elastic action of the spring piece 42, and the rebound sliding assembly 4 is connected with the rebound lower connecting level 32 of the toggle piece 3, and again enters the limiting state.

[0057] When pressing the drawer, the limiting pin 16 overcomes the elastic force of the elastic sheet 15 to disengage from the fixed-point clamping groove 93 and pass through the inclined guide groove 94 to enter the directional guide groove 91 under the elastic restoring action of the spring member 42, so that the elastic limiting member 8 pushes the toggle plate 3 to move outward along the first guide rail 141, thereby unlocking and opening the drawer. Then, the drawer can be pulled out to open, and the toggle plate 3 rotates and separates from the movable rail when moving to the end of the first guide rail 141. During this period, the rebounding lower connecting level 32 of the toggle plate 3 moves away from the elastic limiting member 8, so that the initial upper connecting level 31 of the toggle plate 3 passes over the elastic limiting member 8, and the elastic limiting member 8 is clamped on the initial upper connecting level 31, entering the initial open state.

[0058] Referring to Figures 1 to 13 Further refinement, as shown, the synchronous linkage assembly 7 includes a synchronous slider 71, a linkage swing lever 72, and a synchronous connecting sleeve 73. The synchronous slider 71 slides on the rebounding base plate 14 of the left rebounding member 1, the lower swing end of the linkage swing lever 72 is clamped on the synchronous slider 71, the upper swing end of the linkage swing lever 72 is installed on the synchronous connecting sleeve 73, and the synchronous connecting sleeve 73 is respectively sleeved on the left and right ends of the synchronous connecting rod 6.

[0059] The transmission guide path 10 includes a transmission directional groove 101 for forward directional sliding of the synchronous transmission rod 5, a transmission positioning groove 102 for rebounding sliding of the synchronous transmission rod 5 and fixed-point connection with the synchronous slider 71, and a transmission inclined groove 103 for dislocation and separation of the synchronous transmission rod 5 and the synchronous slider 71. The transmission directional groove 101, the transmission positioning groove 102, and the transmission inclined groove 103 are sequentially communicated, and the synchronous transmission rod 5 is provided with a transmission positioning pin 51 slidingly connected in the transmission directional groove 101, the transmission positioning groove 102, and the transmission inclined groove 103.

[0060] When the drawer is closed, the rebounding sliding block 41 slides forward along the movable rail closed on the second guide rail 142, and pushes the synchronous transmission rod 5 forward, thereby driving the transmission positioning pin 51 to slide in the transmission directional groove 101. At the same time, during the sliding of the rebounding sliding block 41, the push rod 43 pushes the synchronous slider 71 of the synchronous linkage assembly 7, so that the synchronous slider 71 moves forward on the rebounding base plate 14 and drives the swing linkage swing lever 72 to swing forward, thereby rotating the linkage synchronous connecting rod 6 to realize the synchronous action of the left rebounding member 1 and the right rebounding member 2 on the left and right sides of the drawer.

[0061] During the closing of the sliding rail, the transmission positioning pin 51 passes through the transmission directional groove 101 and enters the transmission positioning groove 102, and under the elastic action of the spring member 42, when the left rebounding member 1 and the right rebounding member 2 respectively enter the rebounding limiting state, the transmission positioning pin 51 slides back in the transmission guide groove while being connected with the synchronous slider 71.

[0062] When the drawer is pressed to open, the rebound sliding block 41 is unlocked and moves backward along the second guide rail 142 under the action of the reset elastic force of the spring member 42 of the left and right rebound members 1 and 2, thereby pulling the synchronous transmission rod 5 to move backward, making the transmission positioning pin 51 push the synchronous sliding block 71 to move backward, the linkage swing rod 72 swings immediately, and the synchronous connecting rod 6 swings backward, realizing the synchronous unlocking and rebound of the left and right rebound members 1 and 2.

[0063] When the slide rail rebounds to open, the transmission positioning pin 51 slides off the transmission positioning groove 102 and slides into the transmission inclined groove. At this time, the synchronous sliding block 71 presses the rebound sliding block 41, and the transmission positioning pin 51 is dislocated and separated from the synchronous sliding block 71, so that the synchronous linkage assembly 7 enters an open state, reducing the interference between components. Subsequently, the rebound sliding block 41 and the transmission connecting rod slide to the original open state.

[0064] In addition, the rebound fixed plate 13 is provided with a position adjusting member 17 for adjusting the installation position of the rebound base plate 14. The position adjusting member 17 includes an adjusting rotating wheel and an adjusting convex column, and the adjusting convex column is arranged on the rebound fixed plate 13. The adjusting rotating wheel is rotatably connected to the rebound base plate 14, and the adjusting rotating wheel is provided with an adjusting screw groove in sliding connection with the adjusting convex column.

[0065] During assembly, the adjusting rotating wheel is only needed to be rotated to adjust the forward or backward movement of the rebound base plate 14, thereby adjusting the assembly position of the rebound device, improving the use precision of the rebound device, ensuring the operation stability, and ensuring the use quality of the product.

[0066] The above specific embodiments are only preferred specific embodiments of the present application, and any structure identical or equivalent to the dual-function buffer rebound synchronization device for the drawer slide rail of the present application is within the protection scope of the present application.

Claims

1. A dual function buffer bounce synchronization device for drawer slide rail, comprising a left bounce component (1) and a right bounce component (2) installed between the slide rail and the drawer, characterized in that: The left rebound component (1) and the right rebound component (2) are each provided with a toggle piece (3), a rebound sliding assembly (4), a synchronous transmission component, the synchronous transmission component comprises a synchronous transmission rod (5), a synchronous connecting rod (6), a synchronous linkage assembly (7), The toggle piece (3) is movably connected on the left rebound component (1) and the right rebound component (2) and is buckled or separated from the movable rail of the slide rail according to the opening and closing of the drawer, the rebound sliding assembly (4) is provided with an elastic limiting piece (8) for limiting the movement and dislocation separation of the toggle piece (3), the elastic limiting piece (8) is elastically stretched on the rebound sliding assembly (4) and is connected or separated from the toggle piece (3), the left rebound component (1) and the right rebound component (2) are provided with a limiting guide path (9) for the directional sliding, fixed-point locking and rebound sliding of the elastic limiting piece (8); The two ends of the synchronous connecting rod (6) are respectively installed on the swing part of the synchronous linkage assembly (7), the sliding part of the synchronous linkage assembly (7) is slidably connected on the left rebound component (1) and the right rebound component (2), the rebound sliding assembly (4) respectively pushes the sliding part of the synchronous linkage assembly (7) to move forward while moving forward on the left rebound component (1) and the right rebound component (2), the front end of the left rebound component (1) and the right rebound component (2) is provided with a transmission guide path (10), the synchronous transmission rod (5) is installed on the elastic end of the rebound sliding assembly (4) and directionally rebounds and slides on the transmission guide path (10) under the pressing rebound of the rebound sliding assembly (4) to push the sliding part of the synchronous linkage assembly (7) to move backward; The limiting guide path (9) is provided with an elastic piece (15), the elastic piece (15) divides the limiting guide path (9) into a directional guide groove (91) for the directional sliding of the elastic limiting piece (8) according to the closing of the slide rail, an inclined sliding groove (92) for the directional compression of the elastic limiting piece (8) to allow the free sliding of the toggle piece (3), a fixed-point clamping groove (93) for the fixed-point stay of the elastic limiting piece (8) to lock the rebound sliding assembly (4), and an inclined guide groove (94) for the rebound unlocking of the elastic limiting piece (8) to directionally rebound and slide, The elastic limiting piece (8) is provided with a limiting pin (16) for sequentially sliding in the directional guide groove (91), the inclined sliding groove (92), the fixed-point clamping groove (93) and the inclined guide groove (94) according to the opening and closing of the slide rail; The synchronous linkage assembly (7) comprises a synchronous sliding block (71), a linkage swing rod (72) and a synchronous connecting sleeve (73), the synchronous sliding block (71) slides on the rebound base plate (14) of the left rebound component (1), the lower swing end of the linkage swing rod (72) is clamped on the synchronous sliding block (71), the upper swing end of the linkage swing rod (72) is installed on the synchronous connecting sleeve (73), and the synchronous connecting sleeve (73) is sleeved on the left and right two ends of the synchronous connecting rod (6).

2. The dual function bumper and snapback synchronization device for drawer slides of claim 1, wherein: The slide rail is provided with a closing buffer (11) with a closing buffer function, a cylinder body of the closing buffer (11) is installed on the fixed rail of the slide rail, a push rod of the closing buffer (11) is buckled with the movable rail of the slide rail, the rebound sliding assembly (4) is provided with a rebound deceleration block (12) with a rebound deceleration function, and the rebound deceleration block (12) is slidingly connected on the left rebound component (1) and the right rebound component (2).

3. The dual function bumper and snap synchronization device for drawer slides of claim 1, wherein: The left rebound component (1) and the right rebound component (2) each comprise a rebound fixed plate (13) and a rebound base plate (14), the rebound fixed plate (13) is installed on the fixed rail of the slide rail, the rebound base plate (14) is slidingly connected on the rebound fixed plate (13), the toggle piece (3) and the rebound sliding assembly (4) are slidingly connected on the rebound base plate (14) respectively, and the rebound base plate (14) is provided with a limiting guide path (9) and a transmission guide path (10).

4. The dual function bumper and snap synchronization device for drawer slides of claim 3, wherein: The rebound base plate (14) is provided with a first guide rail (141) for the sliding of the toggle piece (3) and a second guide rail (142) for the sliding of the rebound sliding assembly (4), the limiting guide path (9) is arranged between the first guide rail (141) and the second guide rail (142), and the transmission guide path (10) is arranged above the second guide rail (142).

5. The dual function cushioning and snap synchronization device for drawer slides of any of claims 1 to 4, wherein: The toggle piece (3) is provided with an initial upper connection level (31) connected with the elastic limiting piece (8) in an opening initial state and a rebound lower connection level (32) connected with the rebound sliding assembly (4) in a rebound opening process, and the initial upper connection level (31) and the rebound lower connection level (32) are sequentially distributed from inside to outside on the inside of the toggle piece (3).

6. The dual function bumper and snap synchronization device for drawer slides of claim 5, wherein: The rebound sliding assembly (4) comprises a rebound sliding block (41) and a spring piece (42), the rebound sliding block (41) is slidingly connected on the second guide rail (142), one end of the spring piece (42) is buckled on the rebound fixed plate (13), the other end of the spring piece (42) is buckled on the rebound sliding block (41), the elastic limiting piece (8) is elastically stretched on the rebound sliding block (41), and the rebound sliding block (41) is provided with a push connecting rod (43) for moving forward with the slide rail closing push synchronous linkage assembly (7).

7. The dual function bumper and snap synchronization device for drawer slides of claim 1, wherein: The transmission guide path (10) comprises a transmission directional groove (101) for the forward directional sliding of the synchronous transmission rod (5), a transmission positioning groove (102) for rebound sliding of the synchronous transmission rod (5) and connecting the synchronous transmission rod (5) with the synchronous sliding block (71) at a fixed point, and a transmission inclined groove (103) for dislocation separation of the synchronous transmission rod (5) and the synchronous sliding block (71), and the transmission directional groove (101), the transmission positioning groove (102) and the transmission inclined groove (103) are sequentially communicated. The synchronous transmission rod (5) is provided with a transmission positioning pin (51) slidingly connected on the transmission directional groove (101), the transmission positioning groove (102) and the transmission inclined groove (103).

8. The dual function bumper and snap synchronization device for drawer slides of claim 3, wherein: The fixed plate is provided with a position adjusting part (17) for adjusting the installation position of the rebound base, the position adjusting part (17) comprises an adjusting rotating wheel and an adjusting convex column, the adjusting convex column is arranged on the fixed plate, the adjusting rotating wheel is rotationally connected to the rebound base, and the adjusting rotating wheel is provided with an adjusting screw groove in sliding connection with the adjusting convex column.

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