Sliding door damper
By combining the variable track sliding buckle with the limit groove, along with the dual effects of damping and tension springs, the problem of impact damage and noise at the moment of closing of the sliding door is solved, achieving smooth and precise closing of the sliding door and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN MEILIWANG INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-09
AI Technical Summary
Existing sliding doors lack buffering at the moment of closing, resulting in impact damage and noise. Traditional limiter designs cannot accommodate gentle push closing, leading to unstable door operation and poor closing accuracy, resulting in a poor user experience.
The system employs a combination of a variable-track sliding buckle and a limiting groove, along with the dual effects of damping and tension springs, to achieve dynamic track-changing and limiting. The outward-expanding sliding door connecting groove design ensures smooth docking of the locking blocks. The swinging rotation shaft causes the buckle to flip down and change track to the fixed position of the limiting groove, enhancing structural stability. The damping evenly offsets the impact force, and the tension spring provides the reset traction force.
It achieves smooth, impact-free, and precise closing of sliding doors, avoiding strong impacts and solving the problem of incomplete closing caused by weak force, thus improving the user experience.
Smart Images
Figure CN224338812U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of furniture hardware technology, specifically to sliding door dampers. Background Technology
[0002] Furniture hardware refers to the metal components of furniture, or metal parts used on furniture that have functions such as drawer slides, hinges, sofa legs, lifters, backrest frames, springs, nails, foot brackets, connections, movements, fasteners, pull-out baskets, and decorations. It is also called furniture accessories. As early as the Spring and Autumn and Warring States periods in China, there were bronze hinges for cabinets and gilded bronze fittings and bronze table rings for the edges and legs of lacquered tables.
[0003] Existing sliding door closing technology has three main problems: First, the lack of buffering at the moment of closing leads to impact damage and noise; second, traditional limit design cannot take into account gentle push closing. These problems are manifested in unstable door operation, poor closing accuracy, and poor user experience.
[0004] Therefore, we proposed a sliding door buffer to solve the above problems. Summary of the Invention
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a sliding door buffer, which solves the problems of unstable operation, poor closing accuracy, and unsatisfactory user experience mentioned in the background.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0009] The sliding door damper includes a variable track sliding buckle and a track one. The track one has a groove inside, and the groove has a damping mechanism inside. The variable track sliding buckle is movably mounted on one end of the damping piston rod of the damping mechanism. The groove has a limit groove inside, and the variable track sliding buckle has a limit rod that matches the limit groove.
[0010] Furthermore, the top of the variable track sliding buckle is provided with a sliding door connecting groove.
[0011] Furthermore, one end of the damping piston rod is provided with a swing rotation shaft, and one end of the variable track sliding buckle is movably connected to the swing rotation shaft.
[0012] Furthermore, a tension spring is also provided inside the slide groove, located below the damping piston rod, with one end of the tension spring connected to one end of the slide groove cavity.
[0013] Furthermore, the bottom of the variable track sliding buckle is provided with a hook that is connected to one end of the tension spring.
[0014] Furthermore, the limiting rod is located on both sides of the variable track sliding buckle.
[0015] Furthermore, two guide rails are symmetrically arranged on both sides of the inner wall of the slide groove, located on both sides of the variable track sliding buckle, and the two limiting rods rest on the two guide rails respectively.
[0016] Furthermore, the limiting groove is formed by bending one end of the guide rail downwards.
[0017] (III) Beneficial Effects
[0018] Compared with the prior art, the present invention provides a sliding door buffer, which has the following beneficial effects:
[0019] This invention achieves dynamic track-changing and limiting by cooperating with a variable track sliding buckle and a limiting groove. Combined with the dual effects of damping and tension springs, it achieves automatic traction and buffering in the final stroke of the sliding door's opening and closing. The outward-expanding sliding door connecting groove design ensures smooth docking of the locking blocks. The swinging rotating shaft allows the buckle to flip down and change track to the fixed position of the limiting groove. The symmetrical guide rail and the one-piece molded limiting groove enhance structural stability. The damping evenly offsets the impact force, avoiding strong collisions. The tension spring continuously provides reset traction force, solving the problem of incomplete closure caused by small forces. Ultimately, it achieves smooth and impact-free precise closure of the sliding door. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the slide groove structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the variable track sliding buckle structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the damping piston rod in the retracted state of this utility model.
[0023] Figure 4 This is a cross-sectional view of the variable track sliding buckle structure of this utility model;
[0024] Figure 5 This is a schematic diagram of the variable track sliding buckle movement process of this utility model;
[0025] Figure 6 This is a schematic diagram of the variable track sliding buckle movement process of this utility model;
[0026] Figure 7 This is a schematic diagram of the variable track sliding buckle limiting process of this utility model;
[0027] Figure 8This is a schematic diagram of the variable track sliding buckle limiting state structure of this utility model;
[0028] Figure 9 This is a schematic diagram of the dual variable track sliding buckle structure of this utility model.
[0029] In the diagram: 1. Variable track sliding buckle; 11. Limiting rod; 12. Sliding door connecting groove; 13. Hook; 2. Slide groove; 21. Limiting groove; 22. Guide rail; 3. Damping; 31. Damping piston rod; 32. Swinging rotation shaft; 4. Tension spring; 5. Track 1; 6. Track 2. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0031] like Figure 1-9 As shown, a sliding door buffer proposed in one embodiment of the present invention includes a variable track sliding buckle 1 and a track 5. The track 5 has a groove 2 inside, and a damper 3 is provided inside the groove 2. The variable track sliding buckle 1 is movably disposed at one end of the damping piston rod 31 of the damper 3. The groove 2 has a limit groove 21 inside, and the variable track sliding buckle 1 is provided with a limit rod 11 that matches the limit groove 21.
[0032] like Figure 1-4 As shown, in some embodiments, the top of the variable track sliding buckle 1 is provided with a sliding door connecting groove 12.
[0033] The sliding door connecting groove 12 is used to connect the locking block installed on the sliding door. The two sides of the inner wall of the sliding door connecting groove 12 are outwardly flared. This design facilitates the locking block to slide into the groove when connecting, and also facilitates the locking block to slide out and drive the variable cabinet sliding buckle to flip down and change the movement trajectory.
[0034] like Figure 2-3 As shown, in some embodiments, one end of the damping piston rod 31 of the damping 3 is provided with a swing rotation shaft 32, and one end of the variable track sliding buckle 1 is movably connected to the swing rotation shaft 32.
[0035] One end of the variable track sliding buckle 1 is movably connected to the swing rotation shaft 32, so that the variable track sliding buckle 1 can move by dragging the damping piston rod 31 through the swing rotation shaft 32, and can also swing at one end of the swing rotation shaft 32 to realize track change.
[0036] like Figure 3 As shown, in some embodiments, a tension spring 4 located below the damper 3 is also provided inside the slide groove 2, and one end of the tension spring 4 is connected to one end of the inner cavity of the slide groove 2.
[0037] The number of tension springs 4 shall not be less than one. The function of tension spring 4 is to pull the variable track sliding buckle 1 to drag the sliding door and close it slowly under the action of damping 3 to avoid collision damage. The number of tension springs 4 can be increased or replaced with tension springs 4 of different sizes according to the specifications and stroke of damping 3.
[0038] like Figure 3 As shown, in some embodiments, the bottom of the variable track sliding buckle 1 is provided with a hook 13 connected to one end of the tension spring 4.
[0039] The hook 13 is located below the sliding door connecting groove 12 and below the swing rotation shaft 32. This means that the force applied by the tension spring 4 to the variable track sliding buckle 1 includes not only the axial pulling force on the damping piston rod 31, but also the force that pulls the variable track sliding buckle 1 to swing downward around the swing rotation shaft 32. When the variable track sliding buckle 1 separates from the sliding door, it will swing downward and change track under the action of the sliding door buckle, causing the limiting rod 11 to slide into the interior of the limiting groove 21. At this time, under the pulling force of the tension spring 4, the limiting rod 11 slides further into the concave position inside the limiting groove 21. At the same time, it is pulled by the continuous pulling force of the tension spring 4, so that the limiting rod 11 is stably locked inside the limiting groove 21. Meanwhile, the sliding door connecting groove 12 changes from a vertical upward orientation to an inclined state, ready to dock with the sliding door block again.
[0040] like Figure 3-4 As shown, in some embodiments, the limiting rod 11 is located on both sides of the variable track sliding buckle 1.
[0041] The design of the limiting rods 11 on both sides of the variable track sliding buckle 1 ensures the stability of the variable track sliding buckle 1 during the sliding process and the force is more even.
[0042] like Figure 4 As shown, in some embodiments, two guide rails 22 are symmetrically arranged on both sides of the inner wall of the slide groove 2, which are located on both sides of the variable track sliding buckle 1, and the two limiting rods 11 rest on the two guide rails 22 respectively.
[0043] When the limit rod 11 slides on the guide rail 22, the opening of the sliding door connecting groove 12 is perpendicular to the slide groove 2 and upward. The sliding door buffer is used to control a distance before the sliding door is fully closed, so that the sliding door closes slowly and will not collide with the door frame.
[0044] like Figure 4-5As shown, in some embodiments, the limiting groove 21 is formed by bending one end of the guide rail 22 downwards.
[0045] The limiting groove 21 and the guide rail 22 are integrally formed by bending one end of the guide rail 22 downwards. This design not only ensures the overall structural strength of the product, but also makes the sliding process of the limiting rod 11 from above the guide rail 22 into the limiting groove 21 smoother and more flexible in use.
[0046] like Figure 9 As shown, in some embodiments, a second track 6 is also included. The length of the second track 6 is greater than that of the first track 5. Variable track sliding buckles 1 and damping 3 are installed at both ends inside the slide groove 2 of the second track 6, which can buffer the opening and closing of the sliding door. Multiple slide grooves 2 can also be set up side by side to adapt to the needs of double or more sliding doors.
[0047] When using it, please refer to Figure 5 The tension spring 4 retracts the outer ring of the damping piston rod 31 via the variable track sliding buckle 1. At this time, the sliding door is in a fully closed or fully open state. (See reference...) Figure 6 When pulling the sliding door, a little force is required initially because the movement of the sliding door will stretch the tension spring 4 and extend the damping piston rod 31. As the sliding door continues to move, refer to... Figure 7-8 When the variable track sliding buckle 1 moves the limiting rod 11 to the limiting groove 21, the sliding door continues to move so that the limiting rod 11 slides into the interior of the limiting groove 21, so that the tension spring 4 and the damping piston rod 31 remain in a state of continuous tension and full extension. At the same time, the sliding door connecting groove 12 tilts with the swing of the variable track sliding buckle 1, so that the sliding door block can slide directly out from its interior and remain in the docking state, so as to buffer the opening or closing action when docking again.
[0048] When reconnecting, since the sliding door connecting groove 12 remains tilted, the sliding door block can smoothly slide into its interior. When it abuts against the inner wall on the other side, the variable track sliding buckle 1 in the variable track state is pried back from the tilted state to the horizontal state, so that the limit rod 11 slides out from the inside of the limit groove 21. At this time, the remaining opening or closing stroke of the sliding door is controlled and driven by the damper 3 and the tension spring 4. The damper piston rod 31 of the damper 3 retracts at a uniform speed and slowly, so that when the user moves the sliding door with a large force, the damper 3 will also cancel out the last stroke, avoiding the collision. Finally, under the continuous pulling of the tension spring 4, the damper piston rod 31 is completely retracted, and the sliding door moves into place.
[0049] In summary, this sliding door buffer achieves dynamic track changing and limiting through the cooperation of the variable track sliding buckle 1 and the limiting groove 21. Combined with the dual effects of damping 3 and tension spring 4, it achieves automatic traction and buffering in the final stroke of the sliding door opening and closing. The outward-expanding sliding door connecting groove 12 design ensures smooth docking of the buckle. The swing rotation shaft 32 allows the buckle to flip down and change track to the fixed position of the limiting groove 21. The symmetrical guide rail 22 and the integrally formed limiting groove 21 enhance structural stability. Damping 3 evenly offsets the impact force and avoids strong collisions. The tension spring 4 continuously provides reset traction force to solve the problem of incomplete closure caused by small forces. Finally, it achieves smooth and impact-free precise closure of the sliding door.
[0050] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A sliding door buffer, characterized in that, It includes a variable track sliding buckle (1) and a track (5). The track (5) has a groove (2) inside and a damper (3) inside. The variable track sliding buckle (1) is movably disposed at one end of the damping piston rod (31) of the damper (3). The groove (2) has a limit groove (21) inside and a limit rod (11) matching the limit groove (21) is provided on the variable track sliding buckle (1).
2. The sliding door buffer according to claim 1, characterized in that: The top of the variable track sliding buckle (1) is provided with a sliding door connecting groove (12).
3. The sliding door buffer according to claim 1, characterized in that: The damping piston rod (31) of the damper (3) is provided with a swing rotation shaft (32) at one end, and the variable track sliding buckle (1) is movably connected to the swing rotation shaft (32) at one end.
4. The sliding door buffer according to claim 1, characterized in that: The slide (2) is also provided with a tension spring (4) located below the damper (3), and one end of the tension spring (4) is connected to one end of the inner cavity of the slide (2).
5. The sliding door buffer according to claim 1, characterized in that: The bottom of the variable track sliding buckle (1) is provided with a hook (13) that is connected to one end of the tension spring (4).
6. The sliding door buffer according to claim 1, characterized in that: The limiting rod (11) is located on both sides of the variable rail sliding buckle (1).
7. The sliding door buffer according to claim 1, characterized in that: Two guide rails (22) are symmetrically arranged on both sides of the inner wall of the slide groove (2), which are located on both sides of the variable track sliding buckle (1), and the two limiting rods (11) rest on the two guide rails (22) respectively.
8. The sliding door buffer according to claim 1, characterized in that: The limiting groove (21) is formed by bending one end of the guide rail (22) downwards.