Sliding rail device

Abstract

The utility model provides a sliding rail device which comprises a sliding rail inner rail and a sliding rail outer rail, a sliding rail groove is formed in the sliding rail outer rail, a first protruding block is arranged on one inner side wall of the sliding rail groove, a concave block is arranged at one end of the sliding rail inner rail, and the concave block is arranged in the sliding rail groove and slides along the sliding rail groove. The sliding rail inner rail and the sliding rail outer rail are hinged with each other, so that the sliding rail inner rail is connected with the sliding rail outer rail; on the premise of not depending on an external fastener or an adhesive, high-strength connection of the sliding rail inner rail and the sliding rail outer rail is achieved, the anti-seismic and anti-impact performance of the sliding rail is improved through structural optimization, and the sliding rail adapts to a dynamic load scene; meanwhile, the disassembly and assembly process is simplified, and the modular design requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of slide rail technology, and specifically to a slide rail device. Background Technology

[0002] As a core component of linear motion mechanisms, slide rails are widely used in furniture, industrial equipment, and transportation. Their core function is to achieve smooth movement and reliable fixation of the sliding components. Traditional slide rail connections often rely on external fasteners (such as screws and rivets) or adhesives to assemble the inner and outer rails. For example:

[0003] 1. Mechanical fastening connection: The inner rail is fixed to the outer rail with bolts or clips. Although this method can ensure the connection strength, it has technical problems such as complicated installation, difficult disassembly, and easy loosening due to vibration. In addition, it requires reserved space for drilling, which affects the overall compactness of the slide rail structure.

[0004] 2. Adhesive bonding: Chemical adhesives are used to fix the slide rail components. Although this avoids the aesthetic defects of mechanical connections, adhesives are susceptible to aging and failure due to environmental temperature and humidity, and cannot achieve modular disassembly and assembly, resulting in high repair or replacement costs.

[0005] The above background information is provided only to assist in understanding the utility model concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application, nor does it necessarily provide technical teaching. In the absence of clear evidence that the above information was disclosed before the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0006] To address the technical challenges of achieving a high-strength connection between the inner and outer rails of a slide rail without relying on external fasteners or adhesives; improving the slide rail's seismic and impact resistance through structural optimization to adapt to dynamic load scenarios; and simplifying the assembly and disassembly process to meet modular design requirements, this utility model proposes a slide rail device that achieves a high-strength connection between the inner and outer rails without relying on external fasteners or adhesives, improves the slide rail's seismic and impact resistance through structural optimization to adapt to dynamic load scenarios, and simplifies the assembly and disassembly process to meet modular design requirements.

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

[0008] On one hand, this utility model provides a slide rail device, including: an inner slide rail and an outer slide rail. The outer slide rail is provided with a slide rail groove, and a first protrusion is provided on an inner side wall of the slide rail groove. A concave block is provided on one end of the inner slide rail. The concave block is disposed in the slide rail groove and slides along the slide rail groove, and is interlocked with the first protrusion to realize the connection between the inner slide rail and the outer slide rail.

[0009] This utility model proposes a slide rail device that achieves a high-strength connection between the inner and outer rails of the slide rail without relying on external fasteners or adhesives. Through structural optimization, it improves the slide rail's seismic and impact resistance performance and adapts to dynamic load scenarios. At the same time, it simplifies the disassembly and assembly process and meets the requirements of modular design.

[0010] As a preferred technical solution, the concave block has a twisting groove on its side wall that matches the shape of the first protrusion, and the first protrusion is embedded in the twisting groove to form a twisting structure.

[0011] As a preferred technical solution, it includes: a first magnetic pad, the first magnetic pad being disposed on the inner bottom wall of the slide rail groove, the slide rail groove being connected to the concave block through the first magnetic pad to achieve adsorption positioning between the inner rail and the outer rail of the slide rail.

[0012] As a preferred technical solution, it includes: a second magnetic pad, the second magnetic pad being disposed on the first protrusion, the first protrusion being connected to the concave block through the second magnetic pad to achieve adsorption positioning between the inner rail and the outer rail of the slide rail.

[0013] As a preferred technical solution, a plurality of second protrusions are provided on one end of the inner rail of the slide rail, and the second protrusions are symmetrically arranged on both sides of the concave block;

[0014] One end of the outer rail of the slide rail is flat, and the other end of the outer rail of the slide rail is provided with multiple grooves. The second protrusion engages with the grooves to connect the inner rail of the slide rail and the outer rail of the slide rail.

[0015] As a preferred technical solution, a square tube is connected to the other end of the inner rail of the slide rail, and multiple shock-absorbing bolts are connected to the square tube.

[0016] As a preferred technical solution, the outer wall of the slide rail is provided with a tenon and mortise connection structure; the two slide rails are connected to each other by the tenon and mortise connection structure on the side wall to form a detachable or fixed combination structure.

[0017] As a preferred technical solution, the tenon and mortise connection structure on the side wall of the slide rail extends continuously along the length of the slide rail to form a single row of connection nodes. A protruding tenon is provided on one side wall of the slide rail, and a recessed tenon is provided on the other side wall of the slide rail. The geometric shapes of the protruding tenon of one slide rail and the recessed tenon of the other slide rail are matched to form a locking structure.

[0018] As a preferred technical solution, the N pole of the first magnetic pad faces the tenon side, and the S pole of the second magnetic pad faces the mortise side, so that the normal clamping force is provided when the two outer rails of the slide rail are connected by the magnetic pads with opposite poles.

[0019] As a preferred technical solution, a gap is reserved in the groove of the mortise and tenon, and the gap is used for the magnetic pad to automatically compensate for assembly deviations. The size of the gap is 0.3 to 0.7 mm.

[0020] The slide rail device provided by this utility model has the following beneficial effects:

[0021] 1) This utility model proposes a slide rail device that achieves a high-strength connection between the inner and outer rails of the slide rail without relying on external fasteners or adhesives. Through structural optimization, it improves the seismic and impact resistance of the slide rail and adapts to dynamic load scenarios. At the same time, it simplifies the disassembly and assembly process and meets the requirements of modular design.

[0022] 2) The present invention provides a slide rail device in which a first protrusion is provided on the inner side wall of the slide rail groove of the outer slide rail and a concave block is provided at the end of the inner slide rail. During the sliding process, the two form a mechanical lock through the precise engagement of their geometric shapes. The load is distributed by the interlocking contact surface of the protrusion and the concave block, avoiding local stress concentration and improving the connection strength. Compared with traditional screws or adhesives, this structure does not require pre-drilled mounting holes or chemical bonding surfaces, simplifying the manufacturing process and reducing costs.

[0023] The interlocking contact surfaces absorb energy through minute deformation under vibration or impact, reducing wear or deformation caused by rigid collisions. The slide rail groove constrains the sliding path of the concave block, and together with the engagement depth of the convex block, limits abnormal displacement between the inner and outer rails of the slide rail, avoiding the risk of derailment under dynamic loads. Through structural optimization, the seismic and impact resistance of the slide rail is improved, adapting to dynamic load scenarios. The concave block can be assembled or disassembled simply by sliding along the slide rail groove without the need for additional tools, simplifying the assembly and disassembly process, meeting the requirements for modular rapid replacement, and satisfying the needs of modular design.

[0024] 3) The slide rail device provided by this utility model uses a first magnetic pad and a second magnetic pad to achieve rapid positioning and precise adsorption between the inner rail and the outer rail of the slide rail. At the same time, it is equipped with a shock-absorbing bolt reinforcement system to form a triple protection mechanism of tenon-magnetic attraction-bolt, so that the product achieves a high balance between convenience and structural strength.

[0025] 4) The slide rail device provided by this utility model has the synergistic effect of the opposite-polar magnetic attraction between the first magnetic pad and the second magnetic pad and the mechanical interlock of the tenon structure. The first magnetic pad and the second magnetic pad provide normal clamping force to enhance friction. The tenon relies on the locking mechanism of the structure itself to resist lateral force through the shape of the tenon structure, providing the core shear strength of the mechanical interlock; the tenon structure provides shear force, realizing the efficient unity of "magnetic attraction for coarse positioning - mechanical locking for shear resistance";

[0026] A gap is reserved in the groove of the mortise and tenon joint. The gap is used for the magnetic shim to automatically compensate for assembly deviations. The size of the gap is 0.3 to 0.7 mm. The gap, together with the magnetic shim between the grooves, automatically compensates for assembly deviations, and separates the mechanical load and magnetic load. The shear force is borne by the mortise and tenon structure itself, while the normal force is provided by the magnetic shim, so as to suppress metal fatigue. Attached Figure Description

[0027] Figure 1 A schematic diagram of the structure of a slide rail device provided by this utility model;

[0028] Figure 2 A structural schematic diagram of a slide rail device provided by this utility model from another perspective;

[0029] Figure 3 A structural schematic diagram of a slide rail device provided by this utility model from another perspective;

[0030] Figure 4 A structural schematic diagram of a slide rail device provided by this utility model from another perspective;

[0031] Among them, 1-inner rail of slide rail; 2-outer rail of slide rail; 3-slide rail groove; 4-first protrusion; 5-concave block; 6-twisting groove; 7-first magnetic absorbing pad; 8-second magnetic absorbing pad; 9-second protrusion; 10-square tube; 11-shock-absorbing bolt; 12-tenon; 13-mortise. Detailed Implementation

[0032] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0033] like Figure 1-4 As shown, this utility model provides a slide rail device, including: an inner slide rail 1 and an outer slide rail 2. The outer slide rail 2 is provided with a slide rail groove 3. A first protrusion 4 is provided on an inner side wall of the slide rail groove 3. A concave block 5 is provided on one end of the inner slide rail 1. The concave block 5 is disposed in the slide rail groove 3 and slides along the slide rail groove 3, and is interlocked with the first protrusion 4 to realize the connection between the inner slide rail 1 and the outer slide rail 2.

[0034] This utility model proposes a slide rail device that achieves a high-strength connection between the inner and outer rails of the slide rail without relying on external fasteners or adhesives. Through structural optimization, it improves the slide rail's seismic and impact resistance performance and adapts to dynamic load scenarios. At the same time, it simplifies the disassembly and assembly process and meets the requirements of modular design.

[0035] Preferably, the concave block 5 has a hinge groove on its side wall that matches the shape of the first protrusion 4, and the first protrusion 4 is embedded in the hinge groove to form a hinge structure. Through the geometric adaptation of the hinge groove 6 and the first protrusion 4, the contact area is increased and a three-dimensional interlock is formed, which disperses the shear force and vibration load when the slide rail slides, and avoids local deformation or dislocation caused by stress concentration. This structure replaces traditional screws or adhesives, realizes the self-locking function without external fasteners, and reduces the risk of loosening caused by vibration. The first protrusion 4 is deeply embedded in the hinge groove, which restricts the lateral displacement of the inner rail 1 and the outer rail 2 of the slide rail, and prevents derailment under accidental impact. In the vibration scenario, the small deformation of the hinge structure can absorb energy, reduce the noise and wear generated by rigid collision, and improve durability. The matching design of the hinge groove 6 and the first protrusion 4 provides a guiding function, so that the concave block 5 automatically aligns when sliding along the slide rail groove 3, reducing the assembly complexity. Push-pull disassembly and assembly can be completed without tools, which meets the rapid maintenance needs of modular furniture, industrial equipment and other scenarios.

[0036] Preferably, it includes: a first magnetic pad 7, which is disposed on the inner bottom wall of the slide rail groove 3. The slide rail groove 3 is connected to the concave block 5 through the first magnetic pad 7 to achieve adsorption positioning between the inner slide rail 1 and the outer slide rail 2. By attracting the concave block 5 with the magnetic pad, rapid adsorption positioning is achieved at the moment the inner slide rail 1 and the outer slide rail 2 come into contact, reducing the risk of assembly misalignment caused by mechanical tolerances and improving the alignment accuracy of the slide rail. The magnetic force provides a continuous preload force during the sliding process, so that the concave block 5 automatically corrects small offsets when moving along the slide rail groove 3, reducing the risk of misalignment. The frequency is manually adjusted; magnetic attraction is superimposed on mechanical engagement to form a "magnetic attraction + mechanical" dual locking mechanism, which suppresses the lateral displacement of the slide rail under vibration or impact loads and reduces the risk of derailment; the magnetic attraction can dynamically fill the gaps in the mechanical structure caused by long-term use, delay the decrease in accuracy of the slide rail due to wear, and extend its service life; magnetic attraction allows the inner and outer rails of the slide rail to be separated by hand without the need for screwdrivers or other tools, simplifying the disassembly and assembly process. Magnetic positioning and mechanical locking work together, adsorption guides quick positioning during assembly, and the connection can be released by overcoming the magnetic attraction during disassembly, taking into account both operational convenience and connection reliability.

[0037] Preferably, the system includes: a second magnetic pad 8, which is disposed on the first protrusion 4. The first protrusion 4 is connected to the concave block 5 through the second magnetic pad 8 to achieve adsorption positioning between the inner rail 1 and the outer rail 2 of the slide rail; the complementary magnetic poles of the second magnetic pad 8 and the concave block 5 form multi-point adsorption, and the overall magnetic attraction is enhanced by optimizing the magnetic pole arrangement to ensure high-precision positioning between the inner rail 1 and the outer rail 2 of the slide rail; the second magnetic pad 8 is embedded in the surface of the first protrusion 4, and the first protrusion 4 and the concave block 5 are quickly adsorbed and engaged by magnetic attraction, reducing the positioning deviation caused by mechanical engagement gap; the magnetic attraction provides continuous preload for mechanical engagement, suppressing the lateral displacement of the slide rail under vibration or impact load, forming a dual anti-vibration mechanism of "magnetic attraction + protrusion engagement"; the magnetic attraction can compensate for the gap generated by long-term friction between the first protrusion 4 and the concave block 5, delaying the decline of slide rail accuracy and extending service life; the first protrusion 4 and the concave block 5 can be separated by applying axial tension, making disassembly and assembly convenient.

[0038] Preferably, a plurality of second protrusions 9 are provided on one end of the inner rail 1 of the slide rail, and the second protrusions 9 are symmetrically arranged on both sides of the concave block 5;

[0039] One end of the outer rail 2 is flat, and the other end of the outer rail 2 is provided with multiple grooves. The second protrusion 9 is engaged with the grooves to connect the inner rail 1 and the outer rail 2. The second protrusion 9 is symmetrically distributed on both sides of the concave block 5 and engages with the grooves of the outer rail 2 to limit the relative displacement of the inner and outer rails through mechanical interference. The engagement contact surface between the second protrusion 9 and the groove of the outer rail 2 provides frictional damping. Combined with the composite locking mechanism formed by the magnetic pad, it can suppress the rail deviation caused by high-frequency vibration.

[0040] Preferably, a square tube 10 is connected to the other end of the inner rail 1 of the slide rail, and a plurality of shock-absorbing bolts 11 are connected to the square tube 10; the square tube 10 is connected to the inner rail 1 of the slide rail through the multi-point shock-absorbing bolts 11, so as to evenly distribute the longitudinal / lateral load borne by the slide rail to the main body of the square tube 10, thereby reducing the risk of local stress concentration; the high cross-sectional moment of inertia of the square tube 10 can suppress the torsional deformation of the slide rail under dynamic load, and ensure the operational stability of the slide rail system; the high-frequency impact energy in the movement of the slide rail is absorbed by the compression deformation of the shock-absorbing bolts 11, thereby reducing the amplitude of vibration transmitted to the external structure.

[0041] Preferably, the outer wall of the slide rail 2 is provided with a tenon and mortise connection structure; the two slide rail outer rails 2 are connected to each other by the tenon and mortise connection structure on the side wall to form a detachable or fixed combination structure; the tenon and mortise structure realizes the seamless splicing of the slide rail outer rails 2, supports the adjustment of the slide rail length as needed, and adapts to the span requirements of different application scenarios; the tenon and mortise structure forms distributed contact through concave and convex interlocking surfaces, which improves the overall bending strength of the combined slide rail and avoids deformation or breakage caused by single-point stress concentration.

[0042] Preferably, the tenon and mortise connection structure on the side wall of the slide rail extends continuously along the length of the slide rail to form a single row of connection nodes. A protruding tenon 12 is provided on one side wall of the slide rail outer rail 2, and a recessed tenon 13 is provided on the other side wall of the slide rail outer rail 2. The geometric shapes of the protruding tenon 12 of one slide rail outer rail 2 and the recessed tenon 13 of another slide rail outer rail 2 are matched to form a locking structure. The single row of tenons and mortises extends along the length of the slide rail, which evenly transmits the longitudinal load to the adjacent slide rail outer rails, avoiding fatigue fracture caused by local stress concentration.

[0043] Preferably, the N pole of the first magnetic pad 7 faces the protruding tenon 12 side, and the S pole of the second magnetic pad 8 faces the recessed tenon 13 side. The opposite-pole magnetic pads provide the normal clamping force when the two outer rails 2 of the slide rail are connected. The opposite-pole magnetic attraction between the first magnetic pad 7 and the second magnetic pad 8 works synergistically with the mechanical interlock of the tenon structure. The first magnetic pad 7 and the second magnetic pad 8 provide the normal clamping force to enhance the friction. The tenon relies on the locking mechanism of the structure itself and resists the lateral force through the shape of the tenon structure, providing the core shear strength of the mechanical interlock. The tenon structure provides shear force, realizing the efficient unity of "magnetic attraction for coarse positioning - mechanical locking for shear resistance".

[0044] Preferably, a gap is reserved in the groove of the mortise 13, which is used for the magnetic shim to automatically compensate for assembly deviations. The size of the gap is 0.3-0.7 mm. The gap, combined with the magnetic shim between the grooves, automatically compensates for assembly deviations, separating the mechanical load and the magnetic load. The shear force is borne by the mortise and tenon structure itself, while the normal force is provided by the magnetic shim, thereby suppressing metal fatigue.

[0045] like Figure 1-4As shown, this utility model provides a slide rail device, including: an inner slide rail 1 and an outer slide rail 2. The outer slide rail 2 is provided with a slide rail groove 3, and a first protrusion 4 is provided on one inner side wall of the slide rail groove 3. A concave block 5 is provided on one end of the inner slide rail 1. The concave block 5 is disposed in the slide rail groove 3 and slides along the slide rail groove 3, and is interlocked with the first protrusion 4 to realize the connection between the inner slide rail 1 and the outer slide rail 2. A twisting groove adapted to the shape of the first protrusion 4 is opened on the side wall of the concave block 5, and the first protrusion 4 is embedded in the twisting groove 6 to form a twisting structure. The twisting groove 6 is embedded to form a twisting structure; the first magnetic pad 7 is disposed on the inner bottom wall of the slide rail groove 3, and the slide rail groove 3 is connected to the concave block 5 through the first magnetic pad 7 to achieve adsorption positioning between the inner slide rail 1 and the outer slide rail 2; the second magnetic pad 8 is disposed on the first protrusion 4, and the first protrusion 4 is connected to the concave block 5 through the second magnetic pad 8 to achieve adsorption positioning between the inner slide rail 1 and the outer slide rail 2; a plurality of second protrusions 9 are also provided on one end of the inner slide rail 1, and the second protrusions 9 are symmetrically arranged on both sides of the concave block 5; one end of the outer slide rail 2 is flat, and the other end of the outer slide rail 2 is flat. The slide rail has multiple grooves, and the second protrusion 9 engages with the grooves to connect the inner slide rail 1 and the outer slide rail 2. A square tube 10 is connected to the other end of the inner slide rail 1, and multiple shock-absorbing bolts 11 are connected to the square tube 10. A tenon-and-mortise connection structure is provided on the outer wall of the outer slide rail 2. Two outer slide rails 2 are connected by interlocking tenon-and-mortise connections on the side walls to form a detachable or fixed assembly structure. The tenon-and-mortise connections on the side walls of the outer slide rails extend continuously along the length of the slide rail to form a single row of connection nodes. A protruding tenon 12 is provided on one side wall of the outer slide rail 2, and a recessed tenon 13 is provided on the other side wall of the outer slide rail 2. The protruding tenon 12 of one outer slide rail 2... The tenon 12 and the recess 13 of another slide rail outer rail 2 are geometrically adapted to form a locking structure; the N pole of the first magnetic absorbing pad 7 faces the protruding tenon 12 side, and the S pole of the second magnetic absorbing pad 8 faces the recess 13 side, and the opposite pole magnetic absorbing pads provide normal clamping force when the two slide rail outer rails 2 are connected; a gap is reserved in the groove of the recess 13, and the gap is used for the magnetic absorbing pad to automatically compensate for assembly deviations. The size of the gap is 0.3 to 0.7 mm; without relying on external fasteners or adhesives, a high-strength connection between the inner and outer slide rails is achieved, and the vibration and impact resistance of the slide rail is improved through structural optimization to adapt to dynamic load scenarios; at the same time, the disassembly and assembly process is simplified to meet the needs of modular design.

[0046] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.

Claims

1. A slide rail device, characterized in that, include: The slide rail has an inner rail and an outer rail. The outer rail has a slide rail groove and a first protrusion on one inner sidewall of the slide rail groove. The inner rail has a concave block at one end. The concave block is disposed in the slide rail groove and slides along the slide rail groove, and is interlocked with the first protrusion to connect the inner rail and the outer rail.

2. The slide rail device according to claim 1, characterized in that, The concave block has a twisting groove on its side wall that matches the shape of the first protrusion, and the first protrusion is embedded in the twisting groove to form a twisting structure.

3. The slide rail device according to claim 2, characterized in that, include: A first magnetic pad is disposed on the inner bottom wall of the slide rail groove. The slide rail groove is connected to the concave block through the first magnetic pad to achieve adsorption positioning between the inner rail and the outer rail.

4. The slide rail device according to claim 3, characterized in that, include: The second magnetic pad is disposed on the first protrusion, and the first protrusion is connected to the concave block through the second magnetic pad to achieve adsorption positioning between the inner rail and the outer rail of the slide rail.

5. The slide rail device according to claim 1, characterized in that, The inner rail of the slide rail is also provided with a plurality of second protrusions, which are symmetrically arranged on both sides of the concave block. One end of the outer rail of the slide rail is flat, and the other end of the outer rail of the slide rail is provided with multiple grooves. The second protrusion engages with the grooves to connect the inner rail of the slide rail and the outer rail of the slide rail.

6. The slide rail device according to claim 5, characterized in that, A square tube is connected to the other end of the inner rail of the slide rail, and multiple shock-absorbing bolts are connected to the square tube.

7. The slide rail device according to claim 4, characterized in that, The outer wall of the slide rail is provided with a tenon and mortise connection structure; the two slide rails are connected to each other by the tenon and mortise connection structure on the side wall to form a detachable or fixed combination structure.

8. The slide rail device according to claim 7, characterized in that, The tenon and mortise connection structure on the side wall of the slide rail extends continuously along the length of the slide rail to form a single row of connection nodes. One side wall of the slide rail is provided with a protruding tenon, and the other side wall of the slide rail is provided with a recessed tenon. The geometric shapes of the protruding tenon of one slide rail and the recessed tenon of the other slide rail are matched to form a locking structure.

9. The slide rail device according to claim 8, characterized in that, The N pole of the first magnetic pad faces the protruding tenon side, and the S pole of the second magnetic pad faces the recessed tenon side. The opposite-pole magnetic pads provide the normal clamping force when the two outer rails of the slide rail are connected.

10. The slide rail device according to claim 8, characterized in that, A gap is reserved in the groove of the mortise and tenon, and the gap is used for the magnetic pad to automatically compensate for assembly deviation. The size of the gap is 0.3 to 0.7 mm.

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