Multi-angle self-adaptive elastic device sliding rail

By using a combination of universal ball joints and locking sliders, the elastic guide rail with multi-angle adaptive design solves the problems of uneven elastic force and unstable locking when the traditional guide rail is subjected to force deviation, and realizes the smoothness and stability of the guide rail under multiple working conditions.

CN224187897UActive Publication Date: 2026-05-01DONGGUAN LIANDA METAL PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN LIANDA METAL PRODUCTS CO LTD
Filing Date
2025-06-21
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing elastic guide rails lack an adaptive adjustment mechanism when the applied force direction deviates, resulting in uneven elastic force distribution and local stress concentration. Furthermore, traditional locking mechanisms rely on external devices and cannot achieve instant position fixation, affecting operational smoothness and structural stability.

Method used

It adopts a multi-angle adaptive design, combining a universal ball and a locking slider. The universal ball automatically adjusts the direction of the elastic force, and the locking slider and limit rubber block realize adaptive angle adjustment and instant locking. The low-friction coating and magnetic adsorption layer improve the smoothness and stability of sliding.

Benefits of technology

It achieves adaptive adjustment of the elastic guide rail under multi-directional force, improves the smoothness and reliability of operation, avoids jamming and unexpected movement, provides reliable mechanical constraints, and enhances applicability under multiple working conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of elastic device slide rails, in particular to a multi-angle self-adaptive elastic device slide rail which comprises an outer rail, a middle rail and an inner rail, the middle rail is arranged in an inner cavity of the outer rail in a sliding mode, the inner rail is arranged in an inner cavity of the middle rail in a sliding mode, universal balls are assembled on the two sides of the bottom of an elastic device assembly, and the universal balls are assembled in the inner cavity of the outer rail through bolts. The top of the elastic device assembly is provided with a friction surface, and the left side of the inner cavity of the outer rail is slidably connected with a locking sliding block. According to the multi-angle self-adaptive elastic device sliding rail, it is ensured that the elastic force output direction and the stress direction are always kept adaptive, the operation smoothness and the use reliability of the sliding rail assembly are improved, reliable mechanical guarantee is provided for application scenes needing to be kept in a fixed state, the overall design enhances the structural stability while guaranteeing the function flexibility, and the application range is wide. Meanwhile, the problem that a traditional elastic device is prone to clamping stagnation or needs to be repeatedly pressed and triggered due to stress deviation is effectively solved.
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Description

Technical Field

[0001] This utility model relates to the field of elastic device slide rails, specifically to a multi-angle adaptive elastic device slide rail. Background Technology

[0002] In the field of mechanical transmission and guiding device technology, slide rail assemblies, as core components for achieving linear motion or angle adjustment, are widely used in furniture, industrial equipment, and precision instruments. With the increasing complexity of application scenarios, traditional slide rail structures have gradually revealed their insufficient adaptability to multi-directional forces. Especially in situations requiring both flexible adjustment and stable limiting, existing technical solutions struggle to simultaneously meet the requirements of smooth operation and functional reliability.

[0003] Existing elastic force guide rails mostly adopt a fixed guide structure, which restricts the coupling between the elastic force output direction and the force direction. When the actual force direction deviates, traditional designs, lacking an adaptive adjustment mechanism, are prone to reduced elastic force transmission efficiency and motion jamming. Furthermore, the locking function of most rails relies on external auxiliary devices, which not only increases structural complexity but also suffers from drawbacks such as delayed locking mechanism response and insufficient limit accuracy. This makes it difficult to achieve an effective balance between dynamic adjustment and static holding, limiting the applicability of the equipment under various working conditions. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned shortcomings by providing a multi-angle adaptive elastic force guide rail. This solves the problem that when the applied force direction deviates, traditional components often exhibit uneven elastic force distribution or local stress concentration due to the lack of an angle compensation mechanism. This increases operating resistance and may cause mechanical wear. Furthermore, traditional locking mechanisms often rely on external limiting devices, which cannot achieve real-time position fixation during the operation of the rail. This makes the components prone to malfunction due to external interference when not in operation. In work scenarios where a specific angle needs to be maintained, there is a lack of reliable mechanical constraint methods, making it difficult to balance overall functional flexibility and structural stability.

[0005] The purpose of this utility model is achieved through the following means: a multi-angle adaptive elastic force strip rail, including an outer rail, a middle rail and an inner rail, wherein the middle rail is slidably disposed in the inner cavity of the outer rail, the inner rail is slidably disposed in the inner cavity of the middle rail, universal balls are mounted on both sides of the bottom of the elastic force assembly, the universal balls are mounted to the inner cavity of the outer rail by bolts, a friction surface is provided on the top of the elastic force assembly, a locking slider is slidably connected to the left side of the inner cavity of the outer rail, a track block is mounted on the bottom of the locking slider, a locking pin is inserted into the top of the locking slider, and a limit rubber block is mounted inside the locking slider.

[0006] Furthermore, the bottom of the inner cavity of the outer rail is provided with a track groove that matches the track block. The track groove is slidably connected to the track block. The track block adopts a dovetail cross-section design, which forms a mechanical limiting fit with the track groove to ensure that the locking slider can only slide along the outer rail axis. The track groove is coated with a low friction coefficient coating, which reduces the sliding resistance by more than 40% and prevents the slider from shifting due to vibration.

[0007] Furthermore, the bottom of the inner cavity of the outer rail is provided with a slot that matches the locking pin. The locking pin adopts a spring preload design and is automatically centered through a tapered guide surface when inserted into the slot. The slot spacing is distributed in equal intervals of 3-5mm to meet the locking requirements of different extension lengths of the inner rail.

[0008] Furthermore, the limiting rubber block is square and has a honeycomb-shaped pore compression deformation buffer structure inside. The limiting rubber block is made of silicone rubber material with a Shore hardness of 60A. The honeycomb pore structure realizes compression deformation buffer and absorbs impact energy when the locking slider moves to the limit position.

[0009] Furthermore, a buffer pad is fitted on the right side of the elastic component. The buffer pad has an anti-slip pattern on its outer surface. The buffer pad is made of highly elastic polyurethane, and its surface anti-slip pattern adopts a diamond-shaped raised array design. When the elastic component is compressed to the limit position, it absorbs the impact kinetic energy through deformation. At the same time, the pattern and the contact surface of the middle rail produce micro-mechanical engagement to prevent the slide rail from sliding unexpectedly in a vibration environment.

[0010] Furthermore, a locking groove is provided at the top of the inner rail, and rolling balls are assembled on both sides of the inner cavity of the middle rail and the outer rail. The locking grooves are equidistantly distributed along the axial direction of the inner rail, and a magnetic adsorption layer is provided at the bottom of the groove. The magnetic adsorption layer is adapted to the installation position of the magnetic pin of the locking slider to form auxiliary positioning. The rolling balls are made of steel and coated with grease. The sliding friction is converted into rolling friction through a three-point support layout.

[0011] The beneficial effects of this utility model are:

[0012] This multi-angle adaptive elastic force field slide rail, through the combination design of the elastic force field assembly and the universal ball, realizes the adaptive angle adjustment function of the elastic force field assembly when the force direction deviates. The universal ball structure of this multi-angle adaptive elastic force field slide rail enables the elastic force field assembly to automatically adjust the angle according to the actual force direction, ensuring that the elastic output direction and the force direction always remain adapted, thus improving the smoothness of operation and the reliability of use of the slide rail assembly.

[0013] This multi-angle adaptive elastic guide rail achieves active locking control of the omnidirectional ball position by setting a sliding locking slider in the inner cavity of the outer rail. When it is necessary to fix the elastic component at a specific angle or position, simply push the locking slider to complete the mechanical limit. This not only avoids the unexpected movement of the elastic component in the non-working state, but also provides reliable mechanical protection for application scenarios that require maintaining a fixed position. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a multi-angle adaptive elastic device slide rail according to the present invention;

[0015] Figure 2 This is a schematic diagram of a multi-angle adaptive elastic device slide rail according to the present invention;

[0016] Figure 3 This is a schematic diagram of a multi-angle adaptive elastic device slide rail according to the present invention.

[0017] In the diagram: 1. Outer rail; 2. Locking slider; 21. Track block; 22. Locking pin; 23. Limiting rubber block; 3. Elastic assembly; 31. Universal ball; 32. Friction surface; 4. Middle rail; 5. Inner rail; 51. Locking groove; 52. Rolling ball. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] In this embodiment, refer to Figure 1 , Figure 2 and Figure 3 The specific implementation of the multi-angle adaptive elastic device slide rail includes an outer rail 1, a middle rail 4 and an inner rail 5. The middle rail 4 is slidably disposed in the inner cavity of the outer rail 1, and the inner rail 5 is slidably disposed in the inner cavity of the middle rail 4. Universal balls 31 are mounted on both sides of the bottom of the elastic device assembly 3. The universal balls 31 are mounted to the inner cavity of the outer rail 1 by bolts. A friction surface 32 is provided on the top of the elastic device assembly 3. A locking slider 2 is slidably connected to the left side of the inner cavity of the outer rail 1.

[0020] The omnidirectional ball 31 achieves multi-angle adaptive swing through the ball joint, enabling the elastic device assembly 3 to automatically adjust the force angle according to the sliding direction of the middle rail 4 and the inner rail 5. The friction surface 32 enhances the contact resistance with the middle rail 4 through the surface micro-texture design, achieving an elastic damping effect. The locking slider 2 cooperates with the end of the elastic device assembly 3 through the inclined wedge clamping mechanism to form a multi-level locking force adjustment mechanism.

[0021] The bottom of the locking slider 2 is equipped with a track block 21. The bottom of the inner cavity of the outer rail 1 is provided with a track groove that matches the track block 21. The track groove is slidably connected to the track block 21. The track block 21 adopts a dovetail cross-section design and forms a mechanical limiting fit with the track groove to ensure that the locking slider 2 can only slide along the axial direction of the outer rail 1. The track groove is coated with a low friction coefficient coating, which reduces the sliding resistance by more than 40% and prevents the slider from shifting due to vibration.

[0022] The top of the locking slider 2 is provided with a locking pin 22, and the bottom of the inner cavity of the outer rail 1 is provided with a slot that matches the locking pin 22. The locking pin 22 adopts a spring pre-tightening design. When inserted into the slot, it achieves automatic centering through a tapered guide surface. The slot spacing is distributed in equal intervals of 3-5mm to meet the locking requirements of different extension lengths of the inner rail 5.

[0023] The locking slider 2 is internally equipped with a limiting rubber block 23, which is a square rubber pad made of silicone rubber with a Shore hardness of 60A. The limiting rubber block 23 achieves compression deformation buffering through a honeycomb pore structure and absorbs impact energy when the locking slider 2 moves to the limit position.

[0024] The right side of the elastic component 3 is equipped with a buffer pad. The buffer pad has anti-slip patterns on its outer surface. The buffer pad is made of high-elasticity polyurethane. Its surface anti-slip pattern adopts a diamond-shaped raised array design. When the elastic component 3 is compressed to the limit position, it absorbs the impact kinetic energy through deformation. At the same time, the pattern and the contact surface of the middle rail 4 produce micro-mechanical engagement to prevent the slide rail from sliding unexpectedly in a vibration environment.

[0025] The top of the inner rail 5 is provided with a locking groove 51. The inner cavities of the middle rail 4 and the outer rail 1 are equipped with rolling balls 52. The locking grooves 51 are equidistantly distributed along the axial direction of the inner rail 5. A magnetic adsorption layer is provided at the bottom of the groove, which forms an auxiliary positioning with the magnetic pin of the locking slider 2. The rolling balls 52 are made of steel balls and coated with grease. The sliding friction is converted into rolling friction through a three-point support layout.

[0026] By adding the universal ball 31, the elastic component 3 can adaptively adjust its angle during use, avoiding the elastic component 3 from getting stuck or failing to pop out due to the deviation of the force direction during use, requiring repeated pressing to trigger. Pushing the locking slider 2 into the interior of the universal ball 31 can lock the position of the universal ball 31, thereby preventing the elastic component 3 from continuing to move.

[0027] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A multi-angle adaptive elastic force strip rail, comprising an outer rail, a middle rail, and an inner rail, wherein the middle rail is slidably disposed within the inner cavity of the outer rail, and the inner rail is slidably disposed within the inner cavity of the middle rail, characterized in that: The elastic device assembly has universal balls mounted on both sides of its bottom. The universal balls are bolted to the inner cavity of the outer rail. The elastic device assembly has a friction surface on its top. A locking slider is slidably connected to the left side of the inner cavity of the outer rail. A track block is mounted on the bottom of the locking slider. A locking pin is inserted into the top of the locking slider. A limit rubber block is mounted inside the locking slider. A track groove that matches the track block is opened at the bottom of the inner cavity of the outer rail. The track groove is slidably connected to the track block. A buffer pad is mounted on the right side of the elastic device assembly. A locking groove is opened at the top of the inner rail. Rolling balls are mounted on both sides of the inner cavities of the middle rail and the outer rail.

2. The multi-angle adaptive elastic force guide rail according to claim 1, characterized in that: The track block adopts a dovetail cross-section design, which forms a mechanical limiting fit with the track groove, and the track groove is coated with a low friction coefficient coating.

3. The multi-angle adaptive elastic force guide rail according to claim 1, characterized in that: The bottom of the inner cavity of the outer rail is provided with a slot that matches the locking pin, and the slot spacing is distributed in equal intervals of 3-5mm.

4. The multi-angle adaptive elastic force guide rail according to claim 1, characterized in that: The limiting rubber block is square and has a compression deformation buffer structure with honeycomb-like pores inside.

5. The multi-angle adaptive elastic force guide rail according to claim 1, characterized in that: The outer surface of the cushioning pad is provided with anti-slip patterns, which are designed with a diamond-shaped raised array.

6. The multi-angle adaptive elastic force guide rail according to claim 1, characterized in that: The locking grooves are equidistantly distributed along the inner rail axis, and a magnetic adsorption layer is provided at the bottom of the groove. The magnetic adsorption layer is adapted to the installation position of the magnetic pin of the locking slider. The ball is made of steel and coated with grease on its surface.