Dustproof structure for automobile slide rail

Abstract

This utility model relates to the field of automotive seats, specifically disclosing a dustproof structure for automotive sliding rails, including a lower guide rail, an upper rail base, a tensioning assembly, and a dustproof rubber strip. The upper rail base slides on the upper limit of the lower guide rail. The two ends of the dustproof rubber strip are fixedly connected to the two ends of the lower guide rail. The tensioning assembly includes a tension seat, a first tension wheel, a pawl, a ratchet, and a swing arm. The tension seat is fixedly mounted on the upper rail base, the pawl is mounted on the tension seat, the ratchet and the swing arm rotate coaxially on the tension seat, and the first tension wheel rotates on the connecting arm. The ratchet has several connecting grooves that mesh with the pawl. The dustproof rubber strip is driven by the first tension wheel. This utility model, by setting an adjustable tensioning assembly, allows the pawl to mesh with different ratchet teeth to adjust the position of the tension wheel, thereby adjusting the tension of the dustproof rubber strip, ensuring the tension force of the dustproof rubber strip, and thus ensuring the dustproof effect of the dustproof rubber strip.

Description

Technical Field

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

[0002] To meet the evolving needs of automotive spaces, long sliding rail structures for car seats have emerged. The appearance of these long sliding rail structures, applied in modern automotive spaces, directly impacts the overall visual appeal of the interior and the passenger experience.

[0003] Chinese patent CN115610288A, entitled "A Full-Coverage Slide Rail Mechanism for Automobile Seats," includes a lower guide rail, a dustproof rubber strip, an upper rail housing, and an upper rail top cover. The upper rail housing is slidably connected to the lower guide rail, and the upper rail top cover is fixed to the top of the upper rail housing. A first rib is provided on the lower guide rail. Semi-cylindrical grooves are symmetrically arranged at both ends of the bottom of the dustproof rubber strip to engage with the first rib on the lower guide rail. A rolling roller and a guide roller are fixed inside the upper rail housing. The rolling roller is located at both ends of the upper rail housing, and the guide roller is located between the rolling rollers. The upper surface of the dustproof rubber strip is connected to the rolling roller, and the guide roller is located on the lower surface of the dustproof rubber strip. Although this patent includes a first tensioning roller, the dustproof rubber strip gradually loses elasticity over time. Therefore, the first tensioning roller, located in a fixed position, cannot adjust the tension of the dustproof rubber strip in a timely manner, resulting in a significant reduction in the dustproof effect of the rubber strip.

[0004] The technical problem to be solved by this application is: how to adjust the tension of the dustproof rubber strip. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a dustproof structure for automobile slide rails.

[0006] The technical solution adopted by this utility model is as follows: a dustproof structure for automobile slide rails, including a lower guide rail, an upper rail base, a tensioning assembly, and a dustproof rubber strip. The upper rail base slides on the upper limit of the lower guide rail. The two ends of the dustproof rubber strip are fixedly connected to the two ends of the lower guide rail. The tensioning assembly includes a tensioning seat, a first tensioning wheel, a pawl, a ratchet, and a swing arm. The tensioning seat is fixedly installed on the upper rail base. The pawl is installed on the tensioning seat. The ratchet and the swing arm rotate coaxially on the tensioning seat. The first tensioning wheel rotates on the connecting arm. The ratchet has several connecting tooth grooves that mesh with the pawl. The dustproof rubber strip is driven by the first tensioning wheel.

[0007] In some embodiments, the tensioning seat is provided with an arc-shaped hole, a tension spring, a first connecting shaft and a second connecting shaft, a pawl connected to the first connecting shaft, the first connecting shaft sliding within the arc-shaped hole, and the ratchet and the swing arm rotating with the second connecting shaft. One end of the tension spring is connected to the pawl and the other end is connected to the second connecting shaft.

[0008] In some implementations, the outer wall of the first tensioning wheel is provided with anti-slip grooves.

[0009] In some embodiments, a tensioning component is provided at one end of the upper rail base, and a second tensioning wheel is provided at the other end of the upper rail base. The second tensioning wheel rotates at the upper limit of the upper rail base and is driven by the dustproof rubber strip.

[0010] In some implementations, the outer wall of the second tensioning pulley is provided with anti-slip grooves.

[0011] In some embodiments, the lower guide rail is provided with a connecting end, one end of the dustproof rubber strip is provided with a connecting tooth, the connecting end is provided with a connecting groove that matches the shape of the connecting tooth, and the connecting tooth is confined within the connecting groove.

[0012] In some embodiments, guide platforms are provided on both sides of the lower guide rail, which are used to support and limit the two sides of the dustproof rubber strip.

[0013] In some embodiments, a cover is included, with two covers respectively fixedly disposed at both ends of the upper rail base. A brush is provided at the end of the cover away from the upper rail base, and the brush is disposed above the dustproof rubber strip.

[0014] In some embodiments, the dustproof strip contains metal wires, fibers, or metal sheets.

[0015] In some embodiments, a movable guide rod is provided inside the lower guide rail, and the movable guide rod is fixedly installed inside the lower guide rail, with the upper rail base sliding along the movable guide rod for limitation.

[0016] The beneficial effects of this utility model are as follows:

[0017] This dustproof structure for automotive sliding rails features an adjustable tensioning component. A pawl engages with different ratchet teeth to adjust the position of the tensioning wheel, thereby adjusting the tension of the dustproof rubber strip. This ensures the tension of the strip and guarantees its dustproof effect. There are no gaps between the dustproof rubber strip and the lower guide rail, reducing the risk of slipping and ensuring passenger safety. The tensioning component ensures smooth operation of the sliding rail throughout the entire process, preventing jamming. The structure is simple and robust to install, has a long service life, and excellent durability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the cover;

[0020] Figure 3 This is a schematic cross-sectional view of the overall structure;

[0021] Figure 4 This is a schematic diagram of the tensioning assembly.

[0022] Figure 5 This is a schematic diagram of the tensioning component structure from another perspective;

[0023] Figure 6 This is an exploded view of the tensioning assembly structure.

[0024] Figure 7 This is a schematic diagram showing the structural connection between the connecting end and the dustproof rubber strip;

[0025] Figure 8 This is a schematic diagram showing the structural connection of the connecting end, dustproof strip, and fastener;

[0026] The labels and names in the diagram correspond as follows: 1. Lower guide rail; 2. Upper rail base; 3. Tensioning assembly; 4. Dustproof rubber strip; 5. Cover; 6. Guide pressure roller; 11. Moving guide rod; 12. Connecting end; 13. Guide platform; 14. Decorative strip; 15. Fixing component; 31. Tensioning seat; 32. First tensioning roller; 33. Pawl; 34. Racket tooth; 35. Swing arm; 311. Arc hole; 312. Tension spring; 313. First connecting shaft; 314. Second connecting shaft; 41. Connecting tooth; 51. Brush. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a dustproof structure for automotive slide rails, including a lower guide rail 1, an upper rail base 2, a tensioning assembly 3, a dustproof rubber strip 4, a cover 5, and a guide roller 6. The upper rail base 2 slides at its upper limit on the lower guide rail 1. The two ends of the dustproof rubber strip 4 are fixedly connected to the two ends of the lower guide rail 1, and the middle part of the dustproof rubber strip 4 passes through the upper rail base 2. Two covers 5 are fixedly installed at both ends of the upper rail base 2. The tensioning assembly 3 is fixedly installed on the upper rail base 2, and the guide roller 6 rotates at its upper limit on the cover 5, with the dustproof rubber strip 4 and the guide roller 6 engaging in a transmission mechanism.

[0029] Please see Figure 3 The lower guide rail 1 is provided with a movable guide rod 11, which is fixedly installed inside the lower guide rail 1. The upper rail base 2 slides along the movable guide rod 11.

[0030] Please see Figure 4-6 The tensioning assembly 3 includes a tensioning seat 31, a first tensioning wheel 32, a pawl 33, a ratchet 34, and a swing arm 35. The tensioning seat 31 is fixedly mounted on the upper rail base 2. The pawl 33 is mounted on the tensioning seat 31. The ratchet 34 and the swing arm 35 rotate coaxially on the tensioning seat 31. The first tensioning wheel 32 rotates within a limited position on the connecting arm. The ratchet 34 has several connecting tooth grooves that mesh with the pawl 33. The dustproof rubber strip 4 is driven by the first tensioning wheel 32 to ensure that the dustproof rubber strip 4 maintains tension. The pawl 33 can adjust the position of the first tensioning wheel 32 by meshing with different connecting tooth grooves, thereby adjusting the tension of the first tensioning wheel 32 on the dustproof rubber strip 4.

[0031] For ease of maintenance, in this embodiment, preferably, the tensioning seat 31 is provided with an arc-shaped hole 311, a tension spring 312, a first connecting shaft 313 and a second connecting shaft 314. The pawl 33 is connected to the first connecting shaft 313, and the first connecting shaft 313 slides within the arc-shaped hole 311. The ratchet 34 and the swing arm 35 are respectively connected to the second connecting shaft 314. The ratchet 34 and the swing arm 35 rotate with the second connecting shaft 314. The tension spring 312 is disposed between the pawl 33 and the second connecting shaft 314, with one end of the tension spring 312 connected to the pawl 33 and the other end connected to the second connecting shaft 314. Due to the elastic force of the tension spring 312, the tension spring 312 always pulls the pawl 33 toward the second connecting shaft 314, so that the first connecting shaft 313 is at the end of the arc-shaped hole 311 close to the second connecting shaft 314. At this time, the pawl 33 is engaged with the ratchet 34. When installation or maintenance is required, the first connecting shaft 313 is manually rotated downwards to the end of the arc-shaped hole 311 away from the second connecting shaft 314. The pawl 33 will then disengage from the connecting groove in the ratchet 34. At this time, the tensioning assembly 3 is in the unlocked state, which is convenient for initial installation and subsequent maintenance.

[0032] To prevent slippage between the first tensioning wheel 32 and the dustproof rubber strip 4 during transmission, the outer wall of the first tensioning wheel 32 is provided with anti-slip grooves, thereby improving the smoothness of the anti-slip rubber strip transmission.

[0033] The upper rail base 2 is provided with at least one set of tensioning components 3, or two sets of tensioning components 3, respectively located at both ends of the upper rail base 2. If only one set of tensioning components 3 is provided, one end of the upper rail base 2 is provided with a tensioning component 3, and the other end of the upper rail base 2 is provided with a second tensioning wheel. The second tensioning wheel rotates at its upper limit on the upper rail base 2 and is in transmission engagement with the dustproof rubber strip 4. In this embodiment, the upper rail base 2 is provided with one set of tensioning components 3 and a second tensioning wheel to adjust the tension of the dustproof rubber strip 4. The outer wall of the second tensioning wheel is provided with anti-slip tooth grooves.

[0034] To improve the durability of the dustproof strip 4, metal wires, fibers, or metal sheets are provided inside the dustproof strip 4 to increase its longitudinal tensile strength and improve its durability.

[0035] To increase the stability of the connection between the end of the dustproof rubber strip 4 and the lower guide rail 1, in this embodiment, please refer to... Figure 7 and Figure 8 The lower guide rail 1 is provided with a connecting end 12. One end of the dustproof rubber strip 4 is provided with a connecting tooth 41. The connecting end 12 is provided with a connecting groove that matches the shape of the connecting tooth 41. One end of the dustproof rubber strip 4 is pressed onto the connecting end 12 and the connecting tooth 41 is confined within the connecting groove. The connecting end 12 is provided with a fixing member 15, which presses the dustproof rubber strip 4 onto the connecting end 12 and is fixed to the connecting end 12 by screws.

[0036] To limit the position of the dustproof strip 4, please refer to Figure 3 Guide platforms 13 are provided on both sides of the lower guide rail 1. The guide platforms 13 are fixedly installed on one side of the lower guide rail 1. The guide platforms 13 are used to support and restrict the two sides of the dustproof rubber strip 4. The two guide platforms 13 restrict the offset of the dustproof rubber strip 4. For aesthetic purposes, the guide platforms 13 are provided with decorative strips 14. The two decorative strips 14 are connected to the corresponding guide strips and are respectively provided on both sides of the dustproof rubber strip 4.

[0037] In order to clean foreign objects on the dustproof rubber strip 4, a brush 51 is provided at the end of the cover 5 away from the upper rail base 2, and the brush 51 is positioned above the dustproof rubber strip 4.

[0038] 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 dustproof structure for automotive slide rails, comprising a lower guide rail (1), an upper rail base (2), and a dustproof rubber strip (4), wherein the upper rail base (2) slides on the lower guide rail (1), and the dustproof rubber strip (4) is fixedly connected at both ends to the two ends of the lower guide rail (1), characterized in that, The dustproof structure includes a tensioning assembly (3), which includes a tensioning seat (31), a first tensioning wheel (32), a pawl (33), a ratchet (34), and a swing arm (35). The tensioning seat (31) is fixedly mounted on the upper rail base (2). The pawl (33) is mounted on the tensioning seat (31). The ratchet (34) and the swing arm (35) rotate coaxially on the tensioning seat (31). The first tensioning wheel (32) rotates in a limited position on the connecting arm. The ratchet (34) has several connecting tooth grooves that mesh with the pawl (33). The dustproof rubber strip (4) is driven by the first tensioning wheel (32).

2. The dustproof structure for automotive slide rails according to claim 1, characterized in that, The tensioning seat (31) is provided with an arc-shaped hole (311), a tension spring (312), a first connecting shaft (313) and a second connecting shaft (314). The pawl (33) is connected to the first connecting shaft (313). The first connecting shaft (313) slides within the arc-shaped hole (311). The ratchet (34) and the swing arm (35) rotate with the second connecting shaft (314). One end of the tension spring (312) is connected to the pawl (33) and the other end is connected to the second connecting shaft (314).

3. The dustproof structure for automotive slide rails according to claim 1, characterized in that, The outer wall of the first tensioning wheel (32) is provided with anti-slip grooves.

4. The dustproof structure for automobile slide rails according to claim 1, characterized in that, One end of the upper rail base (2) is provided with a tensioning component (3), and the other end of the upper rail base (2) is provided with a second tensioning wheel. The second tensioning wheel rotates at the upper limit on the upper rail base (2), and the second tensioning wheel is in transmission cooperation with the dustproof rubber strip (4).

5. A dustproof structure for automotive slide rails according to claim 4, characterized in that, The outer wall of the second tensioning wheel is provided with anti-slip grooves.

6. A dustproof structure for automotive slide rails according to claim 1, characterized in that, The lower guide rail (1) is provided with a connecting end (12), and one end of the dustproof rubber strip (4) is provided with a connecting tooth (41). The connecting end (12) is provided with a connecting groove that matches the shape of the connecting tooth (41), and the connecting tooth (41) is confined within the connecting groove.

7. A dustproof structure for automotive slide rails according to claim 1, characterized in that, The lower guide rail (1) is provided with guide platforms (13) on both sides, and the guide platforms (13) are used to support and limit the two sides of the dustproof rubber strip (4).

8. A dustproof structure for automotive slide rails according to claim 1, characterized in that, Includes a cover (5), two covers (5) are respectively fixedly installed at both ends of the upper rail base (2), and a brush (51) is provided at the end of the cover (5) away from the upper rail base (2), and the brush (51) is located above the dustproof rubber strip (4).

9. A dustproof structure for automotive slide rails according to claim 1, characterized in that, The dustproof strip (4) has metal wires, fiber filaments or metal sheets inside.

10. A dustproof structure for automotive slide rails according to claim 1, characterized in that, The lower guide rail (1) is provided with a movable guide rod (11), which is fixedly installed in the lower guide rail (1), and the upper rail base (2) slides along the movable guide rod (11) for limitation.

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