A damping device having a multi-stage damping travel

Abstract

The utility model discloses a kind of damping devices with multi-section damping travel, including damping frame, pusher, damper and damping travel adjusting mechanism;The pusher includes first push block and second push block;The damping frame is respectively connected with first push block and second push block through first sliding structure between them, and it includes first slider and first sliding slot;The damping travel adjusting mechanism includes locking structure and travel selection mechanism;The locking structure includes multiple sets of first locking slot and first locking block;The travel selection mechanism includes bridge slider and travel selection drive mechanism;When first push block moves to the top of bridge slider, the bottom of first push block is supported by bridge slider;When first push block passes bridge slider, this first push block swings downward into corresponding first locking slot.This damping device of the utility model can realize the adjustment to damping travel, so as to be suitable for different application occasions.

Description

Technical Field

[0001] This utility model relates to a damper, specifically to a damping device with a multi-stage damping stroke. Background Technology

[0002] In modern furniture design, drawers, as high-frequency interaction components, directly determine the user experience through the technical configuration of their guide rail system. Traditional drawers rely on manual push-pull mechanical operation, but with the penetration of smart home technology, integrating damping buffers into the guide rail system has become an industry standard. This design, through a dynamic buffering mechanism, not only effectively dissipates the inertial impact force when closing, avoiding the risk of structural damage caused by drawer-cabinet collisions, but also controls operating noise below 45 decibels, improving the quality of home use from both physical safety and sensory experience perspectives.

[0003] Current mainstream drawer dampers suffer from significant functional bottlenecks: their preset fixed damping travel is ill-suited to diverse application scenarios. Whether it's the gentle 0.3m opening damping required for shallow drawers or the powerful 1.2m rebound buffer needed for deep drawers, existing damping devices cannot achieve dynamic parameter adjustment. This technological limitation is particularly pronounced in high-end custom furniture (such as intelligent drawer systems for villa walk-in closets), medical equipment storage units (requiring sterile environments and low-impact operation), and precision instrument storage cabinets (with vibration-resistant designs), where stringent requirements for cushioning performance exist, creating a clear technological gap in application. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this invention provides a damping device with a multi-segment damping stroke. The damping stroke can be adjusted, making it suitable for different applications and giving it a better market prospect.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is:

[0006] A damping device with a multi-stage damping stroke includes a damping frame, a pusher and a damper disposed within the damping frame, wherein,

[0007] The pushing component includes a first pushing block and a second pushing block, wherein the first pushing block is rotatably connected to the second pushing block by a pin; the first pushing block is provided with a groove; the damping frame is connected to the first pushing block and the second pushing block respectively by a first sliding structure, wherein the first sliding structure includes a first sliding member provided on the first pushing block and the second pushing block and a first sliding groove provided on the damping frame, wherein the first sliding groove extends along the length direction of the damping frame;

[0008] The damping rod of the damper is connected to the second push block;

[0009] It also includes a damping stroke adjustment mechanism, which includes a locking structure and a stroke selection mechanism. The locking structure includes multiple sets of first locking grooves disposed on the damping frame and a first locking block disposed on the first pushing block. The multiple sets of first locking grooves are arranged in parallel, and their upper ends are all connected to the first sliding groove. The stroke selection mechanism includes a bridge slider and a stroke selection drive mechanism for driving the bridge slider to move along the length direction of the damping frame. When the first pushing block moves above the bridge slider, the bridge slider is used to support the bottom of the first pushing block. When the first pushing block passes the bridge slider, the first pushing block swings downward and enters the corresponding first locking groove.

[0010] Preferably, the first locking groove is arc-shaped, and the arc of the first locking groove is the same as the arc of the first pushing block swinging downward.

[0011] Preferably, the first locking groove is in two sets, namely locking groove A and locking groove B.

[0012] Preferably, the second sliding structure includes a second slide groove disposed on the damping frame, the second slide groove extending through the damping frame along the width direction of the damper; the bridge slider is installed in the second slide groove, and one end of it passes through the second slide groove and extends to the outside of the damping frame to connect with the stroke selection drive mechanism.

[0013] Preferably, the stroke selection drive mechanism includes an unlocking switch plate; the unlocking switch plate is mounted on the side of the damping frame via a third sliding structure, and the unlocking switch plate is provided with a drive groove that cooperates with the bridge slider.

[0014] Preferably, the second sliding groove is provided with a second locking groove at a position close to the first locking groove, and the bridge slider is provided with a second locking block on the side opposite to the second locking groove.

[0015] Preferably, the damping frame has a limit block on the side of the second slide groove opposite to the second locking groove.

[0016] Preferably, the damping frame is provided with a cover plate.

[0017] Preferably, the height of the groove on the side away from the second push block is lower than the height on the side closer to the second push block.

[0018] Preferably, it also includes a rebounder, which includes a tension spring, one end of which is mounted on the damping frame and the other end of which is mounted on the second push block.

[0019] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0020] 1. The damping device with multi-stage damping stroke of this utility model selects the position of the bridge slider through the stroke selection drive mechanism. When the first pushing block moves to pass the bridge slider, since the bridge slider loses its support for the bottom of the first pushing block, the first locking block in the first pushing block will enter the corresponding first locking groove under the weight of the first pushing block itself or an external force (such as a torsion spring set on the pin shaft), thereby realizing the selection of the damping stroke.

[0021] 2. The damping device of this utility model with multi-stage damping stroke can select the corresponding damping stroke according to the actual application scenario, which has a wider range of applications and a good market prospect. Attached Figure Description

[0022] Figure 1 and Figure 2 These are two perspective views of the damping device with multi-segment damping stroke of this utility model.

[0023] Figure 3 This is an exploded view of the damping device with multi-stage damping stroke according to this utility model.

[0024] Figure 4 A 3D view of the unlock switch board.

[0025] Figure 5 and Figure 6 These are two perspective views of the damping frame.

[0026] Figure 7 and Figure 8 Two three-dimensional views of the actuator from different perspectives.

[0027] Figure 9 This is a 3D view of the bridge slider.

[0028] Figure 10 and Figure 11 These are two 3D views of the bridge slider located at the far right.

[0029] Figure 12 and Figure 13 These are two 3D views of the bridge slider located at the far left.

[0030] Figure 14 This is a schematic diagram showing the position of the first locking block in the first pushing block before it enters the locking groove A.

[0031] Figure 15This is a schematic diagram showing the position of the first locking block in the first pushing block after it enters the locking groove A.

[0032] Figure 16 This is a schematic diagram showing the position of the first locking block in the first pushing block before it enters the locking groove B.

[0033] Figure 17 This is a schematic diagram showing the position of the first locking block in the first pushing block after it enters the locking groove B. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0035] See Figures 1-17 The damping device of this utility model with multi-segment damping stroke includes a damping frame 2 and a pusher, a damper 3 and a rebounder disposed in the damping frame 2.

[0036] See Figures 1-17 The pushing component includes a first pushing block 4 and a second pushing block 5. The first pushing block 4 is rotatably connected to the second pushing block 5 via a pin 501, and a torsion spring can be provided at the rotatable connection. The spring force of the torsion spring causes the first pushing block 4 to swing downward. When no torsion spring is provided, the first pushing block 4 can swing downward by its own weight. The first pushing block 4 is provided with a groove 401, and the height of the side of the groove 401 away from the second pushing block 5 is lower than the height of the side closer to the second pushing block 5. The damping frame 2 is connected to the first pushing block 4 and the second pushing block 5 respectively via a first sliding structure. The first sliding structure includes a first sliding member (e.g., a sliding column) provided on the first pushing block 4 and the second pushing block 5 and a first sliding groove 201 provided on the damping frame 2. The first sliding groove 201 extends along the length direction of the damping frame 2.

[0037] See Figures 1-17 The damping rod of the damper 3 is connected to the second push block 5.

[0038] See Figures 1-17 The rebounder includes an elastic component, one end of which is mounted on the damping frame 2 and the other end is mounted on the second push block 5; in this embodiment, the elastic component is a tension spring 7.

[0039] See Figures 1-17 The damping device 3 of this utility model with multi-segment damping stroke further includes a damping stroke adjustment mechanism, which includes a locking structure and a stroke selection mechanism.

[0040] The locking structure includes multiple sets of first locking grooves disposed on the damping frame 2 and a first locking block 402 disposed on the first pushing block 4; the multiple sets of first locking grooves are arranged in parallel, and their upper ends are all connected to the first sliding groove 201; each set of first locking grooves is arc-shaped, and the arc of the first locking groove is the same as the arc of the first pushing block 4 swinging downward, so that the first pushing block 4 can swing downward and enter the corresponding first locking groove;

[0041] The stroke selection mechanism includes a bridge slider 6 and a stroke selection drive mechanism for driving the bridge slider 6 to move along the length direction of the damping frame 2. The bridge slider 6 is mounted on the damping frame 2 via a second sliding structure. The second sliding structure includes a second groove 204 disposed on the damping frame 2, which extends through the damping frame 2 along the width direction of the damper 3. The bridge slider 6 is installed in the second groove 204, and one end of it passes through the second groove 204 and extends to the outside of the damping frame 2, and is connected to the stroke selection drive mechanism.

[0042] When the first pushing block 4 moves above the bridge slider 6, the bridge slider 6 is used to support the bottom of the first pushing block 4; when the first pushing block 4 passes the bridge slider 6, the first pushing block 4 swings downward and enters the corresponding first locking groove.

[0043] In this embodiment, the first locking groove consists of two sets, namely locking groove A202 and locking groove B203.

[0044] See Figures 1-17 The stroke selection drive mechanism includes an unlocking switch plate 1, which is mounted on the side of the damping frame 2 via a third sliding structure. The unlocking switch plate 1 cooperates with the drive groove 101 of the bridge slider 6. In this embodiment, the third sliding structure can be implemented with reference to the first sliding structure and the second sliding structure.

[0045] With the above settings, when it is necessary to adjust the position of the bridge slider 6 in the second slide groove 204, the unlocking switch plate 1 can be pushed forward or backward, thereby driving the bridge slider 6 located in the drive groove 101 to move in the second slide groove 204, thereby adjusting the position of the bridge slider 6 in the second slide groove 204. In this embodiment, when the bridge slider 6 moves to the rightmost end of the second slide groove 204, the first locking block 402 on the first push block 4 will cooperate with the locking groove A202; and when the bridge slider 6 moves to the leftmost end of the second slide groove 204, the first locking block 402 on the first push block 4 will cooperate with the locking groove B203, thereby selecting different damping strokes.

[0046] See Figures 1-17 A second locking groove 205 is provided in the second slide groove 204 near the first locking groove (i.e., the leftmost end of the second slide groove 204). A second locking block 601 is provided on the side opposite to the second locking groove 205. When the bridge slider 6 moves to the leftmost end, the second locking block 601 in the bridge slider 6 will cooperate with the second locking groove 205 on the second slide groove 204, thereby restricting the bridge slider 6 to that position. In addition, the second locking groove 205 can also be provided at the rightmost end of the second slide groove 204. Correspondingly, the second locking block 601 can also be provided on the other side of the bridge slider 6. This can restrict the bridge slider 6 to the leftmost or rightmost end of the second slide groove 204, thereby preventing the bridge slider 6 from sliding during contact with the first pushing block 4.

[0047] See Figures 1-17 The damping frame 2 has a limiting block 206 on the side of the second slide groove 204 opposite to the second locking groove 205 for restricting the movement of the second pushing block 5. By setting the limiting block 206, the maximum movement stroke of the second pushing block 5 is limited, that is, at the maximum movement stroke, the first locking block 402 on the first pushing member is exactly located at the opening of the locking groove B203.

[0048] See Figures 1-17 A cover plate 8 is provided on the other side of the damping frame 2. By assembling the cover plate 8 with the damping frame 2, a complete shell structure is formed, so that each component of the damper 3 in this utility model is hidden in the sealed cavity formed by the cover plate 8 and the damping frame 2, thereby protecting each component.

[0049] See Figures 1-17 The working principle of the damping device with multi-segment damping stroke of this utility model is as follows:

[0050] First, the damping frame 2 / cover plate 8 of the damping device of this utility model is installed on a fixed component (such as a fixed rail in a slide rail or a cabinet), and the moving rail in the slide rail is connected to the first pushing block 4 through a connector; or the damping frame 2 / cover plate 8 of the damping device of this utility model is installed on a moving component (such as a moving rail in a slide rail), and the cabinet is connected to the first pushing block 4 through a connector; thereby enabling relative movement between the damping frame 2 / cover plate 8 and the first pushing block 4, wherein the connector is a connecting block, one end of the connecting block is installed on the moving rail, and the other end extends into the groove 401 of the first pushing block 4.

[0051] The following example illustrates the working principle of the damping device with multi-segment damping stroke of this utility model: "The damping frame 2 / cover plate 8 of the damping device of this utility model is installed on a fixed component (such as a fixed rail in a slide rail or a cabinet), and the moving rail in the slide rail is connected to the first pushing block 4 through a connector."

[0052] When the moving rail moves outward, it drives the first pushing block 4 to move outward. At this time, the damping rod in the damper 3 extends outward, while the elastic component is in a stretched state. The damping stroke is selected by controlling the position of the bridge slider 6, i.e., by driving the bridge slider 6 to move through the stroke selection drive mechanism. Specifically:

[0053] When the bridge slider 6 is at the rightmost end, after the first push block 4 moves past the bridge slider 6, it loses the support of the bridge slider 6. Therefore, under the action of its own weight or the elastic force of the torsion spring, the first push block 4 will swing downward and enter the locking groove A202, so that the vertically set groove 401 becomes inclined. As the moving rail continues to move outward, the connecting piece (e.g., connecting block) disengages from the groove 401 of the first push block 4, so that the moving rail can continue to move outward.

[0054] When the bridge slider 6 is at the leftmost end, when the first pushing block 4 moves to the opening of the locking groove A202, due to the support of the bridge slider 6, the first pushing block 4 will not swing downward into the locking groove A202. Moreover, as the moving rail continues to move until the first pushing block 4 passes the bridge slider 6, due to the loss of the support of the bridge slider 6, the first pushing block 4 will swing downward under its own weight or the elastic force of the torsion spring, thereby entering the locking groove B203, so that the vertically set groove 401 becomes inclined. As the moving rail continues to move outward, the connecting member (e.g., connecting block) disengages from the groove 401 of the first pushing block 4, so that the moving rail can continue to move outward.

[0055] When the moving rail moves inward (e.g., to close a drawer), the connector on the moving rail re-enters the groove 401. As the moving rail continues to move inward, the connector pushes the first push block 4 to the right, causing the first locking block 402 in the first push block 4 to disengage from the locking groove A202 or the locking groove B203. At the moment of disengagement, the first locking block 402 in the first push block 4 enters the first slide groove 201, causing the groove 401 to change from an inclined state to a vertical state, thereby clamping the connector connected to the moving rail. The elastic component (e.g., tension spring 7) pulls the first push block 4 inward, thereby driving the moving rail inward.

[0056] During the above process, the bridge slider 6 is moved by the stroke selection drive mechanism, thereby changing the support position of the bridge slider 6, so as to cause the first locking block 402 in the first push block 4 to enter the locking groove A202 or the locking groove B203, thereby selecting different damping strokes.

[0057] The above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A damping device having a multi-stage damping stroke, comprising a damping frame, a pusher disposed in the damping frame, a damper, and a rebounder, wherein, The pushing component includes a first pushing block and a second pushing block, wherein the first pushing block is rotatably connected to the second pushing block by a pin; the first pushing block is provided with a groove; the damping frame is connected to the first pushing block and the second pushing block respectively by a first sliding structure, wherein the first sliding structure includes a first sliding member provided on the first pushing block and the second pushing block and a first sliding groove provided on the damping frame, wherein the first sliding groove extends along the length direction of the damping frame; the damping rod of the damper is connected to the second pushing block; the rebounder includes an elastic component; The feature is that it further includes a damping stroke adjustment mechanism, which includes a locking structure and a stroke selection mechanism. The locking structure includes multiple sets of first locking grooves disposed on the damping frame and a first locking block disposed on the first pushing block. The multiple sets of first locking grooves are arranged in parallel, and their upper ends are all connected to the first sliding groove. The stroke selection mechanism includes a bridge slider and a stroke selection drive mechanism for driving the bridge slider to move along the length direction of the damping frame. When the first pushing block moves above the bridge slider, the bridge slider is used to support the bottom of the first pushing block. When the first pushing block passes the bridge slider, the first pushing block swings downward and enters the corresponding first locking groove.

2. The damping device with multi-segment damping stroke according to claim 1, characterized in that, The first locking groove is arc-shaped, and the arc of the first locking groove is the same as the arc of the first pushing block swinging downward.

3. The damping device with multi-segment damping stroke according to claim 1, characterized in that, The first locking groove consists of two sets, namely locking groove A and locking groove B.

4. The damping device with multi-segment damping stroke according to claim 1, characterized in that, The bridge slider is mounted on the damping frame via a second sliding structure; the second sliding structure includes a second slide groove disposed on the damping frame, the second slide groove extending through the damping frame along the width direction of the damper; the bridge slider is mounted in the second slide groove, and one end of it passes through the second slide groove and extends to the outside of the damping frame to connect with the stroke selection drive mechanism.

5. The damping device with multi-segment damping stroke according to claim 4, characterized in that, The stroke selection drive mechanism includes an unlocking switch plate; the unlocking switch plate is mounted on the side of the damping frame via a third sliding structure, and the unlocking switch plate is provided with a drive groove that cooperates with the bridge slider.

6. The damping device with multi-segment damping stroke according to claim 4, characterized in that, The second slide has a second locking groove located near the first locking groove, and the bridge slider has a second locking block on the side opposite to the second locking groove.

7. The damping device with multi-segment damping stroke according to claim 6, characterized in that, The damping frame has a limit block on the side of the second slide groove opposite to the second locking groove.

8. The damping device with multi-segment damping stroke according to claim 7, characterized in that, The damping frame is equipped with a cover plate.

9. The damping device with multi-segment damping stroke according to claim 1, characterized in that, The height of the groove on the side away from the second push block is lower than the height on the side closer to the second push block.

10. The damping device with multi-segment damping stroke according to claim 1, characterized in that, It also includes a rebounder, which comprises a tension spring, one end of which is mounted on the damping frame and the other end of which is mounted on the second push block.

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