Pressing rebound damping device with switchable rebound function

Abstract

The utility model discloses a pressing rebounding damping device with a switchable rebounding function, and belongs to the technical field of sliding rails. The pressing rebounding damping device comprises a base, a rebounding assembly and a damping self-closing assembly, the rebounding assembly and the damping self-closing assembly are arranged on the base, a rebounding trigger block is arranged on the base, the rebounding trigger block is movably installed on the base in the pressing direction, and the rebounding assembly is controlled by pressing the rebounding trigger block to unlock rebounding; the base is further provided with a pluggable switching bolt, the rebound trigger block is provided with a locking groove corresponding to the switching bolt, and a bolt head at the end of the switching bolt can be embedded into the locking groove to limit movement of the rebound trigger block in the pressing direction. According to the rebounding damping device, the switching bolt is matched with the rebounding trigger block, so that the rebounding trigger block is locked or unlocked in the pressing direction, and the rebounding function of the pressing rebounding damping device is limited and flexibly switched; compared with the prior art, the device has the advantages of simple structure, convenience in installation, flexible and stable switching operation and the like.

Description

A press-to-rebound damping device with switchable rebound function Technical Field

[0001] This utility model relates to a slide rail accessory, and more specifically, to a press-rebound damping device with switchable rebound function. Background Technology

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

[0003] Based on the working principles of the damping device and the press-to-rebound device, to simultaneously achieve damping closure and press-to-rebound functions on a slide rail, the damping device and the press-to-rebound device need to be structurally and functionally stably coordinated. Common rebound-damped slide rails install the rebound device and damping device separately on the slide rail. Due to installation and manufacturing errors, it is usually necessary to adjust the relative positions of the rebound device and damping device on the slide rail to ensure stable functional coordination. This increases the assembly process, and the stability of the damping closure and press-to-rebound functions is difficult to guarantee, which is detrimental to product consistency. To address the aforementioned issues, Chinese Patent Application No. 202410971901.9 discloses a technical solution entitled "A Press-to-Rebound Damping Slide Rail." Specifically, it utilizes the cooperation of a transmission gear and clutch mechanism within a gearbox, as well as the cooperation between the gearbox and a self-closing tension spring seat, to achieve the conversion between press-to-rebound elastic energy storage / release and damping-close elastic energy storage / release. During the press-to-rebound process, the transmission gear drives the rack on the movable rail to rebound together, while the self-closing tension spring seat moves with the gearbox towards the proximal end of the self-closing damping frame without obstructing the press-to-rebound function. In the initial stage of slide rail closure, it simultaneously completes the elastic energy storage for both press-to-rebound and damping-close, and the forward and reverse rotation of the transmission gear allows the slide rail to be freely pushed and pulled. In the later stage of slide rail closure, the damping-close mechanism automatically drives the slide rail to close. This press-to-rebound damping device organically combines damping-close and press-to-rebound functions, ensuring that the stability of their cooperation is not reduced by factors such as installation errors. The aforementioned patent application also proposes a function switching handle, which uses rotation to restrict the press-rebound action. This allows the press-rebound damping slide rail to simultaneously possess both press-rebound and damping self-closing functions, or to have only a damping self-closing function, enabling free switching between different usage scenarios. However, this function switching handle has high requirements for installation space. While ensuring the structural strength of the handle, it must maintain stable strength in both the unlocked and locked positions during the press gap, especially requiring reliable restraint in the locked state, which increases structural complexity. Therefore, the application of this function switching handle design in press-rebound damping devices has significant limitations. Summary of the Invention

[0004] 1. Technical problem to be solved by the utility model

[0005] The purpose of this invention is to overcome the shortcomings of existing rebound damping devices, such as complex structure and limited installation location, and to provide a press-to-rebound damping device with switchable rebound function. This invention utilizes a pluggable switching pin in conjunction with a rebound trigger block to lock or unlock the rebound trigger block in the pressing direction, thereby enabling the restriction and flexible switching of the rebound function of the press-to-rebound damping device. Compared with existing designs, it has advantages such as simple structure, convenient installation, and flexible and stable switching operation.

[0006] 2. Technical Solution

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] This utility model discloses a press-to-rebound damping device with switchable rebound function, comprising a base, and a rebound component and a damping self-closing component respectively disposed on the base. The base is provided with a rebound trigger block, which is movably mounted on the base along the pressing direction. Pressing the rebound trigger block controls the rebound component to unlock and rebound. The base is also provided with a pluggable switching pin, and the rebound trigger block has a locking groove corresponding to the switching pin. The pin head at the end of the switching pin can be inserted into the locking groove to restrict the movement of the rebound trigger block in the pressing direction.

[0009] Furthermore, one side of the base is provided with a plug-in slot, the switching pin is installed in the plug-in slot, and there is also a positioning structure between the switching pin and the plug-in slot for keeping the switching pin in both the locked and unlocked positions of the rebound trigger block.

[0010] Furthermore, the positioning structure includes a positioning protrusion on the side wall of the insertion slot, and the side wall of the switching pin has two positioning grooves that cooperate with the positioning protrusion. The switching of the locking and unlocking states of the switching pin to the rebound trigger block is realized by the cooperation position of the positioning protrusion with different positioning grooves.

[0011] Furthermore, the switching pin is also provided with a cavity at the aforementioned positioning groove.

[0012] Furthermore, the bottom of the switching pin also has a guide block, and the bottom of the insertion slot also has a guide hole that guides and cooperates with the aforementioned guide block.

[0013] Furthermore, the base is also provided with a pressure block for pressing down the switching pin.

[0014] Furthermore, the base is also provided with a track groove, and the rebound trigger block has a pin limiting part extending to the track groove. When the switching pin is in the unlocked state of the rebound trigger block, the pin limiting part can move relative to the track groove by pressing to release the obstruction of the rebound path of the track groove.

[0015] The rebound assembly includes a sliding seat and a rebound spring. The sliding seat is slidably mounted on the base, and the rebound spring is installed between the sliding seat and the base. The sliding seat has a swing arm, a telescopic block, and a compression spring. One end of the swing arm is rotatably mounted in the sliding seat, and the other end is equipped with a sliding pin that can move sequentially in the track groove. The sliding pin can be blocked and locked by the aforementioned pin limiting part, and is released when the pin limiting part is pressed and moved. The telescopic block is movably disposed on one side of the swing arm, and the compression spring is disposed between the telescopic block and the swing arm. The sliding seat also has a notch for the telescopic block to extend out on one side.

[0016] The damping self-closing assembly includes a self-closing tension spring seat, a damper, a self-closing latch, and a self-closing tension spring. The self-closing tension spring seat is slidably mounted on the base and connected to the aforementioned sliding seat. One end of the self-closing tension spring is connected to the self-closing tension spring seat, and the other end is connected to the self-closing latch. The damper is mounted on the base and connected to the self-closing latch. The self-closing latch can be locked on the base at a position away from the pin limiting part, and can be unlocked by collision with the moving component and engage with the moving component, so that under the combined action of the damper and the self-closing tension spring, the moving component is driven to close in the opposite direction of the rebound direction.

[0017] Furthermore, the track groove includes a closed guide groove, a rebound guide groove, and a transition guide groove, with the pin limiting part located at the transition guide groove; when the sliding pin is in the closed guide groove, the telescopic block extends outward with the swing arm to engage with the moving member in the closing movement direction of the moving member and move accordingly; when the sliding pin is in the transition guide groove and the rebound guide groove, the telescopic block swings inward with the swing arm and disengages from the moving member.

[0018] Furthermore, a first reset spring is provided between the rebound trigger block and the base to give the pin limiting part an elastic tendency to remain within the transition guide groove; a blocking block is also movably provided on the base, one end of the blocking block having a guide slope located within the rebound guide groove, and when the blocking block moves in the rebound direction, the guide slope forms a reset channel connecting the rebound guide groove and the closed guide groove; a second reset spring is also provided between the blocking block and the base to give the blocking block an elastic tendency to close the reset channel.

[0019] Furthermore, the rebound component and the damping self-closing component are respectively located on opposite sides of the base. The self-closing tension spring seat is slidably disposed in the tension spring seat groove of the base. The self-closing tension spring seat has a boss that passes through the base and connects to the insertion hole on the sliding seat. The self-closing latch is connected to the damper and the self-closing tension spring through the self-closing slider. The self-closing latch is rotatably mounted on the self-closing slider. The base has a guide rib that slides with the self-closing latch. The end of the guide rib away from the pin limiting part has a corner. The self-closing latch has an arc groove that matches the corner. When the self-closing latch is pulled towards the corner by the moving component, the self-closing latch is rotated along the corner under the action of eccentric tension and engages with the corner and separates from the moving component.

[0020] 3. Beneficial effects

[0021] Compared with existing known technologies, the technical solution provided by this utility model has the following beneficial effects:

[0022] (1) The present invention provides a press-to-rebound damping device with switchable rebound function, comprising a base, and a rebound component and a damping self-closing component respectively disposed on the base. The base is provided with a rebound trigger block, which is movably mounted on the base along the pressing direction. Pressing the rebound trigger block controls the rebound component to unlock and rebound. The base is also provided with a pluggable switching pin, and the rebound trigger block has a locking groove corresponding to the switching pin. The pin head at the end of the switching pin can be embedded in the locking groove to restrict the movement of the rebound trigger block in the pressing direction. By using the pluggable switching pin in cooperation with the rebound trigger block, the rebound trigger block can be locked or unlocked in the pressing direction, thereby realizing the restriction and flexible switching of the rebound function of the press-to-rebound damping device. Compared with the existing design, it has the advantages of simple structure, convenient installation, and flexible and stable switching operation.

[0023] (2) The present invention provides a press-to-rebound damping device with switchable rebound function. The base has a plug-in groove on one side, and the switching pin is installed in the plug-in groove. There is also a positioning structure between the switching pin and the plug-in groove for keeping the switching pin in the two positions of locking and unlocking the rebound trigger block. The switching pin can be plugged in and pulled out in the plug-in groove and is stably positioned in the two positions of locking and unlocking, which ensures the switching of the rebound function and the stability of the press-to-rebound damping device.

[0024] (3) The present invention provides a press-rebound damping device with switchable rebound function. Its positioning structure includes a positioning protrusion on the side wall of the insertion slot. The side wall of the switching pin has two positioning grooves that cooperate with the above positioning protrusion. The switching pin can switch the locking state and unlocking state of the rebound trigger block by the cooperation position of the positioning protrusion and different positioning grooves. The structure is simple and compact, and the positioning is accurate and stable.

[0025] (4) The present invention provides a press-rebound damping device with switchable rebound function, wherein the switching pin is provided with a cavity at the above-mentioned positioning groove, so that the positioning side wall of the switching pin has better elasticity, and the insertion and removal operation of the switching pin is easier and more convenient.

[0026] (5) The present invention provides a press-rebound damping device with switchable rebound function, wherein the bottom of the switching pin is also provided with a guide block, and the bottom of the insertion and removal slot is also provided with a guide hole that cooperates with the above-mentioned guide block, further ensuring the stability of the insertion and removal operation of the switching pin; in addition, the base is also provided with a pressure block for pressing the switching pin, which facilitates the installation of the switching pin.

[0027] (6) A press-to-rebound damping device with switchable rebound function according to the present invention has a track groove on its base, and a pin limiting part extending to the track groove on the rebound trigger block. When the switching pin is in the unlocked state of the rebound trigger block, the pin limiting part can move relative to the track groove by pressing to release the obstruction of the rebound path of the track groove; the rebound assembly includes a sliding seat and a rebound spring. The sliding seat has a swing arm, a telescopic block and a compression spring. One end of the swing arm is rotatably installed in the sliding seat, and the other end is equipped with a sliding pin that can move sequentially in the track groove. The sliding pin can be limited by the aforementioned pin limiting part. The blocking lock is released when the pin limiter is pressed and moved; the damping self-closing assembly includes a self-closing tension spring seat, a damper, a self-closing latch, and a self-closing tension spring. The self-closing tension spring seat is slidably mounted on the base and connected to the aforementioned sliding seat; by using the cooperation of the aforementioned rebound assembly and the damping self-closing assembly, the force is transmitted through the self-closing latch of the damping self-closing assembly during both the pressing rebound and damping self-closing processes. This allows the rebound assembly to be responsible only for rebound triggering and closing energy storage, thereby simplifying the structure of the rebound assembly, reducing manufacturing difficulty and cost, and improving the structural compactness and applicability of the pressing rebound damping device;

[0028] (7) A press-rebound damping device with switchable rebound function according to the present invention has a track groove including a closed guide groove, a rebound guide groove and a transition guide groove. When the sliding pin is in the closed guide groove, the telescopic block extends outward with the swing arm to combine with the moving component in the closing movement direction of the moving component and move with it to realize the stretching and energy storage of the rebound spring. When the sliding pin is in the transition guide groove and the rebound guide groove, the telescopic block swings inward with the swing arm and disengages from the moving component, avoiding the interference of the telescopic block on the damping closure and rebound opening of the moving component.

[0029] (8) A press-to-rebound damping device with switchable rebound function of this utility model is provided between the rebound trigger block and the base, which is used to make the pin limiting part have an elastic tendency to stay in the transition guide groove, thus ensuring the stability of the rebound trigger block's reset action; a blocking block is also movably provided on the base, one end of the blocking block has a guide slope located in the rebound guide groove, and when the blocking block moves in the rebound direction, the guide slope forms a reset channel connecting the rebound guide groove and the closed guide groove; the blocking block closes the reset channel between the rebound guide groove and the closed guide groove during the closing process of the moving member, ensuring that the sliding pin can move stably and sequentially in the track groove, avoiding the sliding pin from accidentally entering the closed guide groove and causing the moving member to disengage from the telescopic block in advance, and at the same time, the sliding pin can push the blocking block open and reset during the rebound opening process of the moving member; in addition, a second reset spring is provided between the blocking block and the base, which is used to make the blocking block maintain an elastic tendency to close the reset channel, and the blocking block can play a certain buffering role for the sliding pin during the rebound opening process, effectively preventing the collision between the sliding seat and the base;

[0030] (9) The present invention provides a press-rebound damping device with switchable rebound function. The rebound component and the damping self-closing component are respectively located on opposite sides of the base, which further improves the structural compactness of the press-rebound damping device, reduces its overall size, and improves the installation applicability of the press-rebound damping device. In addition, the base has a guide rib that slides with the self-closing head. The end of the guide rib away from the pin limiting part has a corner. The self-closing head has an arc groove that matches the corner. When the self-closing head is pulled to the corner by the moving component, the self-closing head rotates along the corner under the action of eccentric tension and locks with the corner and separates from the moving component, realizing the combination or separation between the self-closing head and the moving component, as well as the locking or unlocking of the self-closing head and the guide rib. The structure is simple and the switching is stable. Attached Figure Description

[0031] Figure 1 is a schematic diagram of the overall structure of the press-rebound damping device with switchable rebound function of this utility model.

[0032] Figure 2 is a schematic diagram of the angle-split structure of the press rebound damping device with switchable rebound function of this utility model;

[0033] Figure 3 is a schematic diagram of the split structure of the press rebound damping device with switchable rebound function of this utility model from another angle.

[0034] Figure 4 is a schematic diagram of the installation structure of the rebound component on the base in this utility model;

[0035] Figure 5 is a schematic diagram of the installation structure of the damping self-closing component on the base in this utility model;

[0036] Figure 6 is a schematic diagram of the disassembled state of the damping self-closing component and the base in this utility model;

[0037] Figure 7 is a schematic diagram of the disassembled structure of the sliding seat in this utility model;

[0038] Figure 8 is a schematic diagram of the track groove on the base in this utility model;

[0039] Figure 9 is a schematic diagram of the switching pin in the press-to-rebound damping device with switchable rebound function of this utility model.

[0040] Figure 10 is a schematic diagram of the disassembled structure of the switching pin in this utility model;

[0041] Figure 11 is a partial enlarged structural diagram of point K in Figure 10;

[0042] Figure 12 is a schematic diagram of the switching pin being in the unlocked state of the rebound trigger block in this utility model;

[0043] Figure 13 is a schematic diagram of the switching pin in the locked state of the rebound trigger block in this utility model.

[0044] Explanation of the labels in the diagram:

[0045] 1. Base; 2. Base; 2-1. Track groove; 2-1a. Closing guide groove; 2-1b. Rebound guide groove; 2-1c. Transition guide groove; 2-1d. Reset channel; 2-2. Mounting shaft; 2-3. Adjusting protrusion; 2-4. Guide rib; 2-4a. Corner; 2-5. Damper mounting groove; 2-6. Tension spring seat slide groove; 2-7. Insertion and extraction groove; 2-7a. Positioning protrusion; 2-7b. Guide hole; 21. Rebound trigger block; 21-1. Trigger part; 21-2. Pin limiting part; 21-3. Rack; 21-4. First reset spring; 21-5. Locking groove; 22. Blocking block; 22-1. Guide slope; 22-2. Second reset spring; 23. Pressure block; 3. Top cover; 4. Rebound assembly; 41. Sliding seat; 41- 1. Sliding pin; 41-2. Swing arm; 41-2a. Shaft hole; 41-2b. Telescopic hole; 41-3. Telescopic block; 41-3a. Avoidance slope; 41-4. Compression spring; 41-5. Sliding housing; 41-5a. Rotating shaft; 41-5b. Insertion hole; 41-6. Cover plate; 42. Rebound spring; 43. Rebound adjustment block; 44. Rotating wheel; 5. Damping self-closing assembly; 51. Self-closing spring seat; 51a. Boss; 52. Damper; 53. Self-closing slider; 54. Self-closing latch; 55. Self-closing spring; 6. Synchronization assembly; 61. Synchronization gear; 62. Connector; 63. Synchronization transmission rod; 7. Switching pin; 7-1. Pin head; 7-2. Positioning groove; 7-3. Cavity; 7-4. Guide block; 8. Adjuster. Detailed Implementation

[0046] This invention discloses a press-to-open damping device with switchable rebound function, primarily used for providing automatic closing damping for pull-out products, allowing them to be pressed open and automatically closed slowly. Such pull-out products are commonly drawers, therefore this press-to-open damping device is installed on the drawer or drawer slide. The "moving component" mentioned herein refers to the movable rail of the drawer or slide, and the press-to-open damping device is used for the pressing open and automatic slow closing of the moving component.

[0047] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0048] [Example]

[0049] Referring to Figures 1 to 6 and Figures 9 to 11, this embodiment of a press-to-rebound damping device with switchable rebound function includes a base 2, and a rebound component 4 and a damping self-closing component 5 respectively disposed on the base 2. The rebound component 4 is used to trigger the press-to-rebound action and provide the rebound force, while the damping self-closing component 5 is used to provide the pulling force and damping force for automatic pull-back. A rebound trigger block 21 is provided on the base 2, which is movably mounted on the base 2 along the pressing direction. Pressing the rebound trigger block 21 controls the rebound component 4 to unlock and rebound. Unlike existing rebound damping devices, the base 2 is also provided with a pluggable switching pin 7. The switching pin 7 can change its relative position on the base 2 through a plugging and unplugging operation. The rebound trigger block 21 has a locking groove 21-5 corresponding to the switching pin 7. The pin head 7-1 at the end of the switching pin 7 can be embedded in the locking groove 21-5 to restrict the movement of the rebound trigger block 21 in the pressing direction. The insertion and removal direction of the switching pin 7 can be perpendicular to the pressing and moving direction of the rebound trigger block 21. Referring to Figure 12, when the pin head 7-1 of the switching pin 7 is dislodged from the locking groove 21-5, the pressing and moving direction of the rebound trigger block 21 is unrestricted, so it can be pressed to trigger the rebound normally. Referring to Figure 13, when the pin head 7-1 of the switching pin 7 is inserted into the locking groove 21-5, the rebound trigger block 21 is fixed by the switching pin 7, so the switching pin 7 cannot be pressed, thus limiting the rebound function. However, the damping self-closing component 5 can still function at this time. As can be seen, the press-to-rebound damping device of this embodiment can freely switch the rebound function by switching the pin 7. During handling, transportation, or when press-to-rebound is not required, the pin 7 can be used to lock the rebound trigger block 21 to prevent accidental triggering of the rebound. In this case, the damping self-closing function can be used alone. When the pin 7 is pulled outward, the lock on the rebound trigger block 21 is released. The rebound trigger block 21 can then be unlocked by pressing, realizing the press-to-rebound function. This achieves flexible switching between the rebound function and the damping self-closing function, meeting the different functional needs of different usage scenarios. Compared with existing rebound damping devices, the use of the pluggable pin 7 in conjunction with the rebound trigger block 21 allows for locking or unlocking of the rebound trigger block 21 in the pressing direction, thereby limiting and flexibly switching the rebound function of the press-to-rebound damping device. It has advantages such as simple structure, convenient installation, and flexible and stable switching operation.

[0050] As shown in Figures 9 to 11, in this embodiment, the base 2 has a insertion slot 2-7 on one side. The switching pin 7 is installed in the insertion slot 2-7, and a positioning structure is provided between the switching pin 7 and the insertion slot 2-7 to keep the switching pin 7 in both locked and unlocked positions relative to the rebound trigger block 21. The switching pin 7 can be inserted and removed in the insertion slot 2-7 and is stably positioned in both locked and unlocked positions, ensuring the switching of the rebound function and the stability of the press-to-rebound damping device. Specifically, the positioning structure includes a positioning protrusion 2-7a on the side wall of the insertion slot 2-7, and two positioning grooves 7-2 on the side wall of the switching pin 7 that cooperate with the positioning protrusion 2-7a. The switching of the locking and unlocking states of the switching pin 7 to the rebound trigger block 21 is achieved by the cooperation positions of the positioning protrusion 2-7a and the different positioning grooves 7-2. That is, when the positioning protrusion 2-7a engages with the positioning groove 7-2 near the pin head 7-1, the switching pin 7 disengages from the locking groove 21-5 and remains in the unlocked state; conversely, when the positioning protrusion 2-7a engages with another positioning groove 7-2, the switching pin 7 inserts into the locking groove 21-5 and remains in the locked state. The above positioning structure design is simple and compact, and provides accurate and stable positioning.

[0051] Furthermore, as shown in Figure 10, a cavity 7-3 is provided on the switching pin 7 at the aforementioned positioning groove 7-2. The cavity 7-3 provides better elasticity to the positioning sidewall of the switching pin 7, making the insertion and removal of the switching pin 7 easier and more convenient. As shown in Figure 11, the bottom of the switching pin 7 also has a guide block 7-4, and the bottom of the insertion and removal groove 2-7 also has a guide hole 2-7b that guides and cooperates with the aforementioned guide block 7-4, further ensuring the stability of the insertion and removal operation of the switching pin 7. In addition, the base 2 is also provided with a pressing block 23 for pressing the switching pin 7. The pressing block 23 is used to stably hold the switching pin 7 in the insertion and removal groove 2-7, facilitating the installation of the switching pin 7.

[0052] The aforementioned switching pin 7 can be applied in various press-to-rebound damping devices to achieve the limitation and flexible switching of the rebound function. This embodiment also provides a specific structure of a press-to-rebound damping device. Referring to Figures 2 to 8, the press-to-rebound damping device of this embodiment has a track groove 2-1 on its base 2, and a pin limiting part 21-2 extending to the track groove 2-1 on the rebound trigger block 21. When the switching pin 7 is in the unlocked state of the rebound trigger block 21, the pin limiting part 21-2 can move relative to the track groove 2-1 through a pressing action, thereby releasing the obstruction of the rebound path of the track groove 2-1. The rebound assembly 4 includes a sliding seat 41 and a rebound spring 42. The sliding seat 41 is slidably disposed on the base 2. The rebound spring 42 is installed between the sliding seat 41 and the base 2 to apply a rebound force to the sliding seat 41. The sliding seat 41 has a swing arm 41-2, a telescopic block 41-3 and a compression spring 41-4. One end of the swing arm 41-2 is rotatably installed in the sliding seat 41, and the other end is equipped with a sliding pin 41-1 that can move sequentially in the track groove 2-1. During the opening or closing process of the moving component (such as the movable rail of the slide rail), the sliding pin 41-1 can move in the track groove 2-1. At the same time, the sliding pin 41-1 can be blocked and locked by the aforementioned pin limiting part 21-2, and is released when the pin limiting part 21-2 is pressed and moved. Generally, the pressing action causes the moving component to move in the opposite direction of the rebound. The moving component then moves the rebound trigger block 21, thereby releasing the pin limiting part 21-2 from obstructing the rebound path in the track groove 2-1. At this time, the sliding seat 41 can rebound under the action of the rebound spring 42. To facilitate contact between the rebound trigger block 21 and the moving component, a trigger part 21-1 protruding from the base 2 can be provided on the rebound trigger block 21. Referring to Figures 4 and 7, the aforementioned telescopic block 41-3 is movably disposed on one side of the swing arm 41-2, and the compression spring 41-4 is disposed between the telescopic block 41-3 and the swing arm 41-2 to maintain the elastic tendency of the telescopic block 41-3 to extend outward from the swing arm 41-2. A notch for the telescopic block 41-3 to extend is also provided on one side of the sliding seat 41. During the closing process of the moving component, the moving component can move the sliding seat 41 through the telescopic block 41-3 to stretch and store energy in the rebound spring 42. The damping self-closing assembly 5 includes a self-closing tension spring seat 51, a damper 52, a self-closing latch 54, and a self-closing tension spring 55. The self-closing tension spring seat 51 is slidably mounted on the base 2 and connected to the aforementioned sliding seat 41, so that the self-closing tension spring seat 51 can move together with the sliding seat 41. One end of the self-closing tension spring 55 is connected to the self-closing tension spring seat 51, and the other end is connected to the self-closing latch 54. The damper 52 is mounted on the base 2 and connected to the self-closing latch 54. The damper 52 can provide a damping effect opposite to the tension of the self-closing tension spring 55, so that the self-closing tension spring 55 can pull the self-closing latch 54 to move slowly.The self-closing latch 54 can lock onto the base 2 at a position away from the pin limiting part 21-2, and unlock upon collision with the moving component, engaging with the moving component to dampen and close the moving component in the opposite direction of the rebound under the combined action of the damper 52 and the self-closing tension spring 55. Since the self-closing tension spring seat 51 is connected to the sliding seat 41, after the sliding seat 41 unlocks and rebounds, the sliding seat 41 drives the self-closing tension spring seat 51 to rebound together, and at this time the self-closing tension spring 55 is also in a stretched state, which can simultaneously provide a rebound force, using the self-closing latch 54 to drive the moving component to rebound and open; when the moving component closes from the open state, the moving component first drives the sliding seat 41 to move in the opposite direction of the rebound, stretching and storing energy in the rebound tension spring 42 and the self-closing tension spring 55, and after the moving component collides and engages with the self-closing latch 54, the self-closing tension spring 55 drives the self-closing latch 54 and the moving component to automatically pull back, and move slowly under the action of the damper 52.

[0053] By using the above-mentioned rebound component 4 and damping self-closing component 5, the force is transmitted through the self-closing head 54 of the damping self-closing component 5 during both the pressing rebound and damping self-closing processes. This allows the rebound component 4 to be responsible only for rebound triggering and closing energy storage, thereby simplifying the structure of the rebound component 4, reducing manufacturing difficulty and cost, and improving the structural compactness and applicability of the pressing rebound damping device.

[0054] As shown in Figure 8, the aforementioned track groove 2-1 includes a closing guide groove 2-1a, a rebound guide groove 2-1b, and a transition guide groove 2-1c. The pin limiting part 21-2 is located at the transition guide groove 2-1c and is used to block and lock or unlock and release the sliding pin 41-1 at the transition guide groove 2-1c. The closing guide groove 2-1a is arranged along the opening and closing direction of the moving member. When the sliding pin 41-1 is in the closing guide groove 2-1a, the telescopic block 41-3 extends outward with the swing arm 41-2 to engage with the moving member in the closing movement direction of the moving member and move with it. When the sliding pin 41-1 is in the transition guide groove 2-1c and the rebound guide groove 2-1b, the telescopic block 41-3 swings inward with the swing arm 41-2 and disengages from the moving member. Through the above arrangement, the interference of the telescopic block 41-3 on the damping closure and rebound opening of the moving member is avoided, and it has the advantages of simple and compact structure, convenient manufacturing and assembly, and stable and reliable movement. As further shown in Figure 7, the sliding seat 41 in this embodiment includes a housing composed of a sliding box 41-5 and a cover plate 41-6. A rotating shaft 41-5a is provided on the sliding box 41-5, and a shaft hole 41-2a is provided on the swing arm 41-2. The swing arm 41-2 is rotatably mounted on the rotating shaft 41-5a through the shaft hole 41-2a. An arc-shaped hole for the sliding pin 41-1 to pass through is also provided at the bottom of the sliding box 41-5. The cover plate 41-6 is fixed to the sliding box 41-5 with screws, so that the entire swing arm 41-2 is located inside the sliding box 41-5. A telescopic hole 41-2b is also provided on one side of the swing arm 41-2. The tail end of the telescopic block 41-3 is located in the telescopic hole 41-2b. A limiting protrusion is also provided on the side wall of the telescopic block 41-3, so that the telescopic block 41-3 can be stably limited on the swing arm 41-2 and can move flexibly in telescopic motion. In addition, the extended end of the telescopic block 41-3 has a relief slope 41-3a that is set in the rebound direction of the moving member. During the rebound opening process, the moving member can apply pressure to the telescopic block 41-3 by contacting the relief slope 41-3a, causing it to contract, thereby allowing the moving member to easily pass over the telescopic block 41-3, ensuring the reliability and smoothness of the rebound.

[0055] As shown in Figure 8, a first reset spring 21-4 is provided between the aforementioned rebound trigger block 21 and the base 2 to give the pin limiting part 21-2 an elastic tendency to remain within the transition guide groove 2-1c. The end of the pin limiting part 21-2 is concave arc-shaped, which is used to guide the sliding pin 41-1 from the transition guide groove 2-1c to the rebound guide groove 2-1b. When the pin limiting part 21-2 extends into the transition guide groove 2-1c, the sliding pin 41-1 is blocked and locked by the reduction in the size of the transition guide groove 2-1c. Furthermore, the closed guide groove 2-1a and the transition guide groove 2-1c are connected by a guide arc. When the rebound pin 82a pushes the telescopic block 41-3 along the closing movement direction of the moving member, the sliding pin 41-1 is guided into the transition guide groove 2-1c by the guide arc, and causes the telescopic block 41-3 to tilt inward, so that the moving member compresses the telescopic block 41-3, causing it to contract and pass over the telescopic block 41-3. In this embodiment, the end of the rebound guide groove 2-1b away from the transition guide groove 2-1c also has a reset channel 2-1d for guiding the sliding pin 41-1 into the closed guide groove 2-1a for reset. To improve the reliability of the sliding pin 41-1 moving within the track groove 2-1, in this embodiment, a blocking block 22 is also movably provided on the base 2. One end of the blocking block 22 has a guide slope 22-1 located within the rebound guide groove 2-1b. When the blocking block 22 moves in the rebound direction, the guide slope 22-1 forms a reset channel 2-1d that connects the rebound guide groove 2-1b with the closed guide groove 2-1a. Conversely, the reset channel 2-1d is closed. A second reset spring 22-2 is also provided between the blocking block 22 and the base 2 to keep the blocking block 22 in an elastic tendency to close the reset channel 2-1d. The blocking block 22 closes the reset channel 2-1d between the rebound guide groove 2-1b and the closing guide groove 2-1a during the closing process of the moving component. This ensures that the sliding pin 41-1 can move stably and sequentially within the track groove 2-1, preventing the sliding pin 41-1 from accidentally entering the closing guide groove 2-1a and causing the moving component to disengage from the telescopic block 41-3 prematurely. Simultaneously, during the rebound opening process of the moving component, the sliding pin 41-1 can push the blocking block 22 away and reset it. Furthermore, the second reset spring 22-2 provides elastic force to the blocking block 22. During the rebound opening process, the blocking block 22 can provide a certain buffering effect on the sliding pin 41-1, effectively preventing collisions and abnormal noises between the sliding seat 41 and the base 2.

[0056] As shown in Figures 2 to 6, in this embodiment, the rebound component 4 and the damping self-closing component 5 are respectively disposed on opposite surfaces of the base 2, further improving the structural compactness of the press-rebound damping device, reducing its overall size, and improving the installation applicability of the press-rebound damping device. The damper 52 is installed in the damper mounting groove 2-5 of the base 2, and the self-closing tension spring seat 51 is slidably disposed in the tension spring seat groove 2-6 of the base 2. The self-closing tension spring seat 51 is provided with a boss 51a, which passes through the base 2 and connects to the insertion hole 41-5b on the sliding seat 41 to realize the synchronous movement of the sliding seat 41 and the self-closing tension spring seat 51; the self-closing latch 54 is connected to the damper 52 and the self-closing tension spring 55 through the self-closing slider 53, and the self-closing latch 54 is rotatably mounted on the self-closing slider 53. 3. The base 2 has a guide rib 2-4 that slides with the self-closing latch 54. The end of the guide rib 2-4 away from the pin limiting part 21-2 has a corner 2-4a. The self-closing latch 54 has an arc groove that matches the corner 2-4a. When the self-closing latch 54 is pulled by the moving component to move towards the corner 2-4a, the self-closing latch 54 is subjected to eccentric pulling force and rotates along the corner 2-4a to engage with the corner 2-4a and separate from the moving component. At this time, the moving component can continue to be pulled open.

[0057] Furthermore, similar to existing press-and-rebound damping devices, in this embodiment, the base 2 is also provided with a rotating wheel 44, and the rebound spring 42 passes around the rotating wheel 44. The rebound spring 42 is connected to the base 2 through a rebound adjustment block 43. The base 2 has at least two rebound force adjustment grooves that can engage with the rebound adjustment block 43. By adjusting the connection of the rebound adjustment block 43 with different rebound force adjustment grooves, the preload of the rebound spring 42 can be adjusted, thereby adjusting the magnitude of the rebound force. The rotating wheel 44 is rotatably mounted on the mounting shaft 2-2 of the base 2. By passing the rebound spring 42 around the rotating wheel 44, the length of the rebound spring 42 can be longer without increasing the length of the base 2, thus improving the structural compactness. This press-and-rebound damping device also includes a synchronization component 6, which includes a synchronization gear 61, a connector 62, and a synchronization transmission rod 63. The synchronization gear 61 is rotatably mounted on the base 2. The rebound trigger block 21 has a rack 21-3 that meshes with the synchronization gear 61. The synchronization gear 61 is coaxially connected to the synchronization transmission rod 63 through the connector 62. The pressing triggering motion of the rebound trigger block 21 drives the synchronous transmission rod 63 to rotate. This design is simple in structure, provides stable transmission, and enables the synchronization of the actions of two sets of pressing rebound damping devices. In this embodiment, the base 2 is slidably mounted on the base 1. The base 1 is used to connect with the stationary component that mounts the moving component. An adjuster 8 is also provided between the base 2 and the base 1 to adjust the relative position of the base 2 on the base 1. Similar to existing technologies, the adjuster 8 adopts a dial structure with a spiral groove on one side and an indexing positioning groove on the other. The adjuster 8 is rotatably mounted on the base 2. The base 2 has adjusting protrusions 2-3 that cooperate with the spiral groove, and the base 1 has positioning protrusions that cooperate with the indexing positioning groove. By moving the adjuster 8, the front-to-back position between the base 2 and the base 1 can be adjusted, thereby adjusting the pressing gap. The upper part of the base 2 is also provided with a top cover 3, which is fixed to the base 2 with screws, thus confining the entire rebound assembly 4 within the base 2. The damping self-closing assembly 5 is located on the back of the base 2 and is confined within the base 2 by the base 1.

[0058] This embodiment provides a press-to-rebound damping device with switchable rebound function, which can be installed on a drawer slide rail. During installation, the press-to-rebound damping device is mounted on the fixed rail of the slide rail via a base 1. A rebound pin that cooperates with the trigger part 21-1 in the press-to-rebound damping device and a self-closing pin that cooperates with the self-closing latch 54 are provided on the movable rail.

[0059] When using the press-and-rebound function, simply pull the switching pin 7 outwards. At this time, the rebound trigger block 21 can move in the pressing direction. When the drawer needs to be opened, by applying a pressing action to the drawer panel, the rebound pin of the moving rail contacts the trigger part 21-1, causing the rebound trigger block 21 to move in the opposite direction of the rebound. The pin limiting part 21-2 loses its restrictive effect on the sliding pin 41-1. At this time, the sliding pin 41-1 can enter the rebound guide groove 2-1b from the transition guide groove 2-1c. Under the action of the rebound spring 42 and the self-closing spring 55, the sliding seat 41 and the self-closing spring seat 51 rebound and move together, and the self-closing latch 54 drives the moving rail to open. When the drawer is closed, the moving rail moves in the closing direction. At this time, the rebound pin first contacts the telescopic block 41-3 and pushes the telescopic block 41-3 to move together, which in turn drives the sliding seat 41 and the self-closing tension spring seat 51 to move together, stretching and storing energy for the rebound spring 42 and the self-closing tension spring 55, and stretching the damper 52 to the open state. When the sliding pin 41-1 moves to the position of the transition guide groove 2-1c, under the action of the guide arc between the closing guide groove 2-1a and the transition guide groove 2-1c, the sliding pin 41-1 enters the transition guide groove 2-1c and is blocked and limited by the pin limiting part 21-2, completing the stretching of the rebound spring 42 and the self-closing tension spring 55. The tension spring 55 stores energy during tension. When the sliding pin 41-1 enters the transition guide groove 2-1c, the swing arm 41-2 and the telescopic block 41-3 sway. At this time, due to the inclination of the contact surface between the rebound pin and the telescopic block 41-3, a compressive force is generated on the telescopic block 41-3, causing the telescopic block 41-3 to contract inward. This causes the rebound pin to pass over the telescopic block 41-3 and continue to move forward. At the same time, the self-closing pin collides with the self-closing latch 54, causing it to separate from the corner 2-4a and rotate to the position where it engages with the self-closing pin. At this time, under the action of the self-closing tension spring 55 and the damper 52, the movable rail and drawer can be slowly pulled to close.

[0060] When the press-to-rebound function is not in use, simply insert the switching pin 7 inwards so that the pin head 7-1 of the switching pin 7 is inserted into the locking slot 21-5. At this time, the rebound trigger block 21 cannot move to unlock and rebound, thus restricting the press-to-rebound function. At this time, the movable rail can be pulled outwards normally, which will cause the self-closing tension spring 55 to stretch and store energy, while keeping the self-closing latch 54 at the corner 2-4a. When closing the drawer, the damping self-closing function can also be achieved by using the self-closing tension spring 55 and the damper 52.

[0061] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A press-to-rebound damping device with switchable rebound function, comprising a base (2), and a rebound assembly (4) and a damping self-closing assembly (5) respectively disposed on the base (2), wherein a rebound trigger block (21) is provided on the base (2), the rebound trigger block (21) is movably mounted on the base (2) along the pressing direction, and the rebound assembly (4) is unlocked and rebounded by pressing the rebound trigger block (21); characterized in that: The base (2) is also provided with a pluggable switching pin (7), and the rebound trigger block (21) has a locking groove (21-5) corresponding to the switching pin (7). The pin head (7-1) at the end of the switching pin (7) can be embedded in the locking groove (21-5) to restrict the movement of the rebound trigger block (21) in the pressing direction.

2. The press-rebound damping device with switchable rebound function according to claim 1, characterized in that: The base (2) has a plug-in slot (2-7) on one side, the switching pin (7) is installed in the plug-in slot (2-7), and there is a positioning structure between the switching pin (7) and the plug-in slot (2-7) for keeping the switching pin (7) in both the locked and unlocked positions of the rebound trigger block (21).

3. The press-rebound damping device with switchable rebound function according to claim 2, characterized in that: The positioning structure includes a positioning protrusion (2-7a) on the side wall of the insertion slot (2-7), and the side wall of the switching pin (7) has two positioning grooves (7-2) that cooperate with the positioning protrusion (2-7a). The switching pin (7) switches the locking and unlocking states of the rebound trigger block (21) by the cooperation position of the positioning protrusion (2-7a) with different positioning grooves (7-2).

4. The press-rebound damping device with switchable rebound function according to claim 3, characterized in that: The switching pin (7) is also provided with a cavity (7-3) at the positioning groove (7-2).

5. The press-rebound damping device with switchable rebound function according to claim 2, characterized in that: The bottom of the switching pin (7) also has a guide block (7-4), and the bottom of the insertion slot (2-7) also has a guide hole (2-7b) that guides and cooperates with the guide block (7-4).

6. The press-rebound damping device with switchable rebound function according to claim 2, characterized in that: The base (2) is also provided with a pressure block (23) for pressing down the switching pin (7).

7. The press-rebound damping device with switchable rebound function according to any one of claims 1 to 6, characterized in that: The base (2) is also provided with a track groove (2-1), and the rebound trigger block (21) has a pin limiting part (21-2) extending to the track groove (2-1). When the switching pin (7) is in the unlocked state of the rebound trigger block (21), the pin limiting part (21-2) can move relative to the track groove (2-1) by pressing to release the obstruction of the rebound path of the track groove (2-1); the rebound assembly (4) includes a sliding seat (41) and a rebound spring (42), and the sliding seat (41) is slidably disposed on the base (2). On the slide (41), the rebound spring (42) is installed between the slide seat (41) and the base (2). The slide seat (41) has a swing arm (41-2), a telescopic block (41-3) and a compression spring (41-4). One end of the swing arm (41-2) is rotatably installed in the slide seat (41), and the other end is equipped with a sliding pin (41-1) that can move sequentially in the track groove (2-1). The sliding pin (41-1) can be blocked and locked by the pin limiting part (21-2) and is pressed by the pin limiting part (21-2). Released when moving; the telescopic block (41-3) is movably disposed on one side of the swing arm (41-2), the compression spring (41-4) is disposed between the telescopic block (41-3) and the swing arm (41-2), and the sliding seat (41) is also provided with a notch for the telescopic block (41-3) to extend on one side; the damping self-closing assembly (5) includes a self-closing tension spring seat (51), a damper (52), a self-closing latch (54) and a self-closing tension spring (55), the self-closing tension spring seat (51) is slidably disposed on the base (2) and is connected to the aforementioned sliding seat (41-2). The self-closing tension spring (55) is connected to the self-closing tension spring seat (51) at one end and to the self-closing locking head (54) at the other end. The damper (52) is mounted on the base (2) and connected to the self-closing locking head (54). The self-closing locking head (54) can be locked on the base (2) at a position away from the pin limiting part (21-2), and unlocked by collision with the moving member and combined with the moving member, so that the moving member can be damped and closed in the opposite direction of the rebound direction under the combined action of the damper (52) and the self-closing tension spring (55).

8. The press-rebound damping device with switchable rebound function according to claim 7, characterized in that: The track groove (2-1) includes a closed guide groove (2-1a), a rebound guide groove (2-1b), and a transition guide groove (2-1c). The pin limiting part (21-2) is located at the transition guide groove (2-1c). When the sliding pin (41-1) is in the closed guide groove (2-1a), the telescopic block (41-3) extends outward with the swing arm (41-2) to engage with the moving member in the closed movement direction of the moving member and move accordingly. When the sliding pin (41-1) is in the transition guide groove (2-1c) and the rebound guide groove (2-1b), the telescopic block (41-3) swings inward with the swing arm (41-2) and disengages from the moving member.

9. The press-rebound damping device with switchable rebound function according to claim 8, characterized in that: A first reset spring (21-4) is provided between the rebound trigger block (21) and the base (2) to make the pin limiting part (21-2) have an elastic tendency to stay in the transition guide groove (2-1c); a blocking block (22) is also movably provided on the base (2), one end of the blocking block (22) has a guide slope (22-1) located in the rebound guide groove (2-1b), when the blocking block (22) moves in the rebound direction, the guide slope (22-1) forms a reset channel (2-1d) that connects the rebound guide groove (2-1b) and the closed guide groove (2-1a); a second reset spring (22-2) is also provided between the blocking block (22) and the base (2) to make the blocking block (22) maintain an elastic tendency to close the reset channel (2-1d).

10. The press-rebound damping device with switchable rebound function according to claim 8, characterized in that: The rebound assembly (4) and the damping self-closing assembly (5) are respectively located on opposite sides of the base (2). The self-closing tension spring seat (51) is slidably located in the tension spring seat groove (2-6) of the base (2). The self-closing tension spring seat (51) is provided with a boss (51a), which passes through the base (2) and is connected to the insertion hole (41-5b) on the sliding seat (41). The self-closing latch (54) is connected to the damper (52) and the self-closing tension spring (55) through the self-closing slider (53). The self-closing latch (54) is rotatably mounted on the self-closing spring. On the closed slider (53), the base (2) has a guide rib (2-4) that slides with the self-closing latch (54). The end of the guide rib (2-4) away from the pin limiting part (21-2) has a corner (2-4a). The self-closing latch (54) has an arc groove that matches the corner (2-4a). When the self-closing latch (54) is pulled towards the corner (2-4a) by the moving component, the self-closing latch (54) rotates along the corner (2-4a) under the action of eccentric pulling force and engages with the corner (2-4a) and separates from the moving component.

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