Sliding rail structure

Abstract

The utility model relates to the technical field of electric sliding rails, and discloses a sliding rail structure which comprises a lower rail, a first belt winding wheel and a second belt winding wheel, the lower rail is provided with an upward opening in the length direction of the lower rail, and the end close to the lower rail is provided with the first belt winding wheel; the upper rail module is arranged on the lower rail and can slide along the opening; one end of the shielding belt is connected to the upper rail module, and the other end of the shielding belt is connected to the upper rail module after bypassing the first belt winding wheel and the second belt winding wheel; when the upper rail module slides along the opening, the shielding belt is driven, and the shielding belt keeps shielding the opening all the time. The sliding rail structure has the advantages that foreign matters can be prevented from entering the lower rail, the safety performance is good, the attractiveness is high, and the bearing capacity of the shielding belt is high.

Description

Technical Field

[0001] This utility model relates to the field of electric slide rail technology, and in particular to a slide rail structure. Background Technology

[0002] Electric sliding rails are often used at the bottom of car seats to drive the seat to adjust its fore-and-aft position.

[0003] The sliding rail mainly consists of a lower rail assembly and an upper rail assembly. The lower rail is longer and has an upward-facing cavity, which is fixed to the vehicle floor. The upper rail is shorter and is used to install the car seat. The upper rail can slide relative to the lower rail along its extension direction to adjust the fore-and-aft position of the car seat.

[0004] Because the upper rail cannot completely cover the lower rail, dust and other foreign objects can easily enter the lower rail cavity through the opening, affecting the sliding performance of the electric sliding rail, causing noise, reduced comfort of the car seat, and in severe cases, jamming or loss of function. Furthermore, the lower rail opening also results in poor visual appeal and even poses safety hazards, such as passengers slipping and falling with their high heels, or children getting their fingers stuck and injured. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a slide rail structure that can prevent foreign objects from entering the lower rail, has good safety performance, and is aesthetically pleasing.

[0006] The technical solution adopted by this utility model to solve its technical problem is to propose a slide rail structure, including:

[0007] The lower rail has an upward opening along its length, and a first pulley is provided at one end near the lower rail, and a second pulley is provided at the other end near the lower rail;

[0008] The upper rail module is disposed on the lower rail and can slide along the opening;

[0009] A shielding strip, one end of which is connected to the upper rail module, and the other end of which passes over the first and second winding pulleys and is then connected to the upper rail module;

[0010] When the upper rail module slides along the opening, it drives the shielding strip, and the shielding strip always keeps the opening covered.

[0011] Furthermore, the lower rail is provided with a guide groove along its length, and the shielding strip is movably engaged in the guide groove.

[0012] Furthermore, the lower rail is provided with a first edge and a second edge on both sides of the opening, and the guide groove is provided on both the first edge and the second edge;

[0013] One side of the shielding strip is movably engaged in the guide groove on the first edge, and the other side of the shielding strip is movably engaged in the guide groove on the second edge.

[0014] Furthermore, the guide groove includes a snap-fit ​​section and a connecting section along its transverse direction, the connecting section being close to and communicating with the opening;

[0015] The shielding strip is provided with a locking strip on each side, the locking strip is movably engaged with the locking section, and the width of the locking strip is greater than the width of the slot of the connecting section.

[0016] Furthermore, the two ends of the shielding strip are respectively connected to the upper rail module to form a closed-loop shielding structure;

[0017] The sum of the lengths of the shielding strip and the upper rail module is greater than or equal to twice the length of the opening, so that the opening is always completely shielded when the upper rail module slides to any position of the opening.

[0018] Furthermore, the distance between the first winding pulley and the second winding pulley is greater than or equal to the length of the opening.

[0019] Furthermore, the lower rail includes a rail body and a first end cover and a second end cover respectively connected to both ends of the rail body, the first winding wheel is disposed on the first end cover, and the second winding wheel is disposed on the second end cover.

[0020] Furthermore, each end of the shielding strip is provided with a buckle, and the two ends of the shielding strip are respectively engaged with the upper rail module through the buckles.

[0021] Furthermore, the shielding strip includes a base material and a reinforcing material, wherein the base material is rubber, polyurethane, or silicone, and the reinforcing material is fiberglass, nylon, or steel wire.

[0022] Furthermore, the first and second pulleys are configured as fixed pulleys.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] In this invention, a first winding pulley is located at one end near the lower rail, and a second winding pulley is located at the other end near the lower rail. One end of the shielding strip is connected to the upper rail module, and the other end passes sequentially around the first and second winding pulleys before connecting to the upper rail module, forming a closed-loop shielding structure. When the upper rail module slides along the opening, it drives the shielding strip to move, and the shielding strip always keeps the opening covered. This effectively prevents foreign objects from entering the lower rail through the opening and affecting the normal operation of the slide rail, ensuring good safety and aesthetics. Compared to zipper-type shielding structures, it has a stronger load-bearing capacity and simpler manufacturing and assembly processes.

[0025] In this invention, the distance between the first and second winding pulleys is greater than or equal to the length of the opening, ensuring that the shielding strip provides sufficient shielding coverage along the length of the opening. A first edge and a second edge are respectively provided on both sides of the lower rail opening, and guide grooves are symmetrically formed on the first and second edges. The locking strips on both sides of the shielding strip are movably engaged in the guide grooves, ensuring that the shielding strip provides sufficient shielding coverage along the width of the opening and that the opening is always completely shielded.

[0026] In this invention, the guide groove includes a snap-fit ​​section and a connecting section near the opening side, and the width of the snap-fit ​​strips on both sides of the shielding strip is greater than the width of the groove at the connecting end, to prevent the snap-fit ​​strips from detaching from the guide groove and to ensure the stability of the shielding structure. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the slide rail structure of this utility model;

[0028] Figure 2 for Figure 1 A schematic diagram of the structure after removing the lower rail;

[0029] Figure 3 for Figure 2 A plan view;

[0030] Figure 4 for Figure 1 Exploded view;

[0031] Figure 5 This is a schematic diagram of the lower rail structure;

[0032] Figure 6 This is a schematic diagram of the cross-section of the main track body;

[0033] Figure 7 This is a schematic diagram of the cross-section of the shielding strip.

[0034] In the picture:

[0035] 1. Lower rail; 10. Rail body; 10A. First edge; 10B. Second edge; 100. Opening; 101. Guide groove; 101A. Snap-fit ​​section; 101B. Connecting section; 11. First end cap; 110. First pulley; 12. Second end cap; 120. Second pulley;

[0036] 2. Upper rail module;

[0037] 3. Shielding strip; 30. Clip; 31. Buckle. Detailed Implementation

[0038] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0039] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0040] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0043] like Figures 1-7As shown, this embodiment of a slide rail structure mainly includes: a lower rail 1, an upper rail module 2, a shielding strip 3, a first winding wheel 110, and a second winding wheel 120. The lower rail 1 has an upward-facing opening 100 along its length, provided because the upper rail module 2 needs to slide along the lower rail 1. The first winding wheel 110 is located near one end of the lower rail 1, and the second winding wheel 120 is located near the other end. The first and second winding wheels 110 and 120 are used for the shielding strip 3 to be wound, facilitating the reversal of the shielding strip 3. The upper rail module 2 is mounted on the lower rail 1 and can slide along the opening 100. Generally, this slide rail structure is applied to car seats, with the bottom of the car seat equipped with the slide rail structure of this embodiment. Specifically, the car seat is fixedly connected to the upper rail module 2 and slides along with the upper rail module 2. When the upper rail module 2 slides along the lower rail 1, it drives the car seat to move back and forth, adjusting the front and rear position of the car seat. One end of the shielding strip 3 is connected to the upper rail module 2, and the other end of the shielding strip 3 passes over the first winding wheel 110 and the second winding wheel 120 before being connected to the upper rail module 2. In actual use, when the upper rail module 2 slides along the opening 100, it drives the shielding strip 3, and the shielding strip 3 always keeps the opening 100 covered.

[0044] In this embodiment, the two ends of the shielding strip 3 are respectively connected to the upper rail module 2, forming a closed-loop shielding structure. Furthermore, the sum of the lengths of the shielding strip 3 and the upper rail module 2 is greater than or equal to twice the length of the opening 100, ensuring that the opening 100 is always completely shielded when the upper rail module 2 slides to any position.

[0045] Specifically, a buckle 31 is provided at each end of the shielding strip 3, and both ends of the shielding strip 3 are respectively engaged with the upper rail module 2 through the buckles 31. More specifically, one end of the shielding strip 3 is detachably fixed to the upper rail module 2 through one buckle 31, and the other end of the shielding strip 3 is detachably fixed to the upper rail module 2 through another buckle 31, ensuring that the shielding strip 3 is easy to replace and disassemble. The shielding strip 3 in this embodiment includes a base material and a reinforcing material, wherein the base material is rubber, polyurethane, or silicone, and the reinforcing material is fiberglass, nylon, or steel wire. The base material slides in contact with the metal lower rail 1, reducing or even avoiding sliding noise, while the reinforcing material effectively increases the strength of the shielding strip 3. The shielding strip 3 in this embodiment is easy to manufacture and process, and has higher strength than zippers and fabrics.

[0046] In actual use, the slide rail structure of this embodiment has a first winding wheel 110 at one end near the lower rail 1 and a second winding wheel 120 at the other end near the lower rail 1. One end of the shielding strip 3 is connected to the upper rail module 2, and the other end passes through the first winding wheel 110 and the second winding wheel 120 in sequence before being connected to the upper rail module 2, forming a closed-loop shielding structure. When the upper rail module 2 slides along the opening 100, it drives the shielding strip 3 to move, and the shielding strip 3 always keeps the opening 100 covered. This can effectively prevent foreign objects from entering the lower rail 1 from the opening 100, thereby affecting the normal operation of the slide rail, ensuring good safety and high aesthetics of the slide rail.

[0047] In existing zipper-type concealing structures, one zipper strip is fixed to a decorative strip, and another strip is fixed to another decorative strip. The zipper head is connected to the upper rail. When the upper rail slides along the lower rail 1, the two strips are engaged by the zipper head, and the two decorative strips conceal the opening 100. This zipper-type concealing structure has two drawbacks: firstly, the zipper has weak load-bearing capacity and is easily damaged during use, posing a safety hazard; secondly, the process of fixing the zipper strips to the decorative strips is complex, and the assembly process of the zipper is also complicated.

[0048] Compared to the zipper-type shielding structure, in the slide rail structure of this embodiment, the two ends of the shielding strip 3 are respectively connected to the upper rail module 2 to form a closed-loop shielding structure, and the two sides of the shielding strip 3 are respectively movably engaged with the lower rail 1, which has a stronger load-bearing capacity and a simpler manufacturing and assembly process.

[0049] Specifically, in this embodiment, the distance between the first winding wheel 110 and the second winding wheel 120 is greater than or equal to the length of the opening 100, ensuring that the span of the shielding belt 3 is large enough to cover the length of the opening 100.

[0050] The lower rail 1 is provided with a guide groove 101 along its length direction. The shielding strip 3 is movably engaged in the guide groove 101. The lower rail 1 is provided with a first edge 10A and a second edge 10B on both sides of the opening 100. The guide groove 101 is provided on both the first edge 10A and the second edge 10B. One side of the shielding strip 3 is movably engaged in the guide groove 101 on the first edge 10A, and the other side of the shielding strip 3 is movably engaged in the guide groove 101 on the second edge 10B.

[0051] In actual use, the distance between the first winding pulley 110 and the second winding pulley 120 is greater than or equal to the length of the opening 100, ensuring that the shielding size of the shielding strip 3 in the length direction of the opening 100 is sufficient. A first edge 10A and a second edge 10B are respectively provided on both sides of the opening 100 of the lower rail 1. Guide grooves 101 are symmetrically opened on the first edge 10A and the second edge 10B. The retaining strips 30 on both sides of the shielding strip 3 are movably engaged in the guide grooves 101, ensuring that the shielding size of the shielding strip 3 in the width direction of the opening 100 is sufficient, and ensuring that the opening 100 is always in a completely shielded state.

[0052] Furthermore, the guide groove 101 includes a snap-fit ​​section 101A and a connecting section 101B along its transverse direction (i.e., the transverse direction of the lower rail 1). The connecting section 101B is close to and communicates with the opening 100. Each side of the shielding strip 3 is provided with a locking strip 30, which is movably snapped into the snap-fit ​​section 101A. The width of the locking strip 30 is greater than the slot width of the connecting section 101B, meaning the cross-section of the snap-fit ​​section 101A is larger than the cross-section of the connecting section 101B. In actual use, the guide groove 101 includes the snap-fit ​​section 101A and the connecting section 101B near the opening 100, and the width of the locking strips 30 on both sides of the shielding strip 3 is greater than the slot width at the connecting end, preventing the locking strips 30 from detaching from the guide groove 101 and ensuring the stability of the shielding structure. During assembly, the locking strips 30 can be inserted into the snap-fit ​​section 101A from the end of the rail body 10.

[0053] In this embodiment, the lower rail 1 includes a rail body 10 and a first end cap 11 and a second end cap 12 respectively connected to both ends of the rail body 10. The first end cap 11 and the second end cap 12 are made of plastic, while the rail body 10 is made of metal. The first end cap 11 is snapped onto one end of the rail body 10, and the second end cap 12 is snapped onto the other end of the rail body 10. The first winding pulley 110 is mounted on the first end cap 11, and the second winding pulley 120 is mounted on the second end cap 12, ensuring convenient assembly of the first winding pulley 110 and the second winding pulley 120. Furthermore, the first winding pulley 110 and the second winding pulley 120 are configured as fixed pulleys, meaning that their positions remain fixed during use.

[0054] In the slide rail structure of this solution, a first winding wheel 110 and a second winding wheel 120 are respectively set at both ends near the lower rail 1. One end of the shielding strip 3 is connected to the upper rail module 2, and the other end passes around the first winding wheel 110 and the second winding wheel 120 in sequence before being connected to the upper rail module 2, forming a closed-loop shielding structure that fully shields the opening 100 of the lower rail 1. This effectively blocks foreign objects and prevents them from entering the lower rail 1. It has a large load-bearing capacity, good visual effect, high aesthetics, and is easy to process and assemble.

Claims

1. A slide rail structure, characterized in that, include: The lower rail has an upward opening along its length, and a first pulley is provided at one end near the lower rail, and a second pulley is provided at the other end near the lower rail; The upper rail module is disposed on the lower rail and can slide along the opening; A shielding strip, one end of which is connected to the upper rail module, and the other end of which passes over the first and second winding pulleys and is then connected to the upper rail module; When the upper rail module slides along the opening, it drives the shielding strip, and the shielding strip always keeps the opening covered.

2. The slide rail structure according to claim 1, wherein, The lower rail is provided with a guide groove along its length, and the shielding strip is movably engaged in the guide groove.

3. The slide rail structure according to claim 2, wherein, The lower rail is provided with a first edge and a second edge on both sides of the opening, and the guide groove is provided on both the first edge and the second edge. One side of the shielding strip is movably engaged in the guide groove on the first edge, and the other side of the shielding strip is movably engaged in the guide groove on the second edge.

4. The slide rail structure according to claim 3, characterized in that, The guide groove includes a snap-fit ​​section and a connecting section along its transverse direction. The connecting section is close to the opening and communicates with the opening. The shielding strip is provided with a locking strip on each side, the locking strip is movably engaged with the locking section, and the width of the locking strip is greater than the width of the slot of the connecting section.

5. The slide rail structure according to claim 1, wherein The two ends of the shielding strip are respectively connected to the upper rail module to form a closed-loop shielding structure; The sum of the lengths of the shielding strip and the upper rail module is greater than or equal to twice the length of the opening, so that the opening is always completely shielded when the upper rail module slides to any position of the opening.

6. The slide rail structure according to claim 1 or 5, characterized in that, The distance between the first winding pulley and the second winding pulley is greater than or equal to the length of the opening.

7. The slide rail structure according to claim 1, wherein The lower rail includes a rail body and a first end cover and a second end cover respectively connected to both ends of the rail body. The first winding wheel is disposed on the first end cover, and the second winding wheel is disposed on the second end cover.

8. The slide rail structure according to claim 1, wherein Each end of the shielding strip is provided with a buckle, and the two ends of the shielding strip are respectively engaged with the upper rail module through the buckles.

9. The slide rail structure according to claim 1, wherein The shielding strip includes a base material and a reinforcing material, wherein the base material is rubber, polyurethane, or silicone, and the reinforcing material is fiberglass, nylon, or steel wire.

10. The slide rail structure according to claim 1, wherein The first and second pulleys are configured as fixed pulleys.

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