Single-expansion-plate two-stage telescopic sliding installation structure applied to seat leg support

Abstract

The utility model discloses a single expansion plate two-stage telescopic sliding installation structure applied to a seat leg support, which comprises a leg support main support body and an expansion plate, a first sliding seat is fixedly arranged on the side part of the leg support main support body, a first sliding block is connected onto the first sliding seat in a sliding manner, a second sliding seat is fixedly assembled on the outer side of the first sliding block, and the expansion plate is fixedly assembled on the second sliding seat. The second sliding seat is slidably connected with a second sliding block, and the expansion plate is fixedly connected with the second sliding block. The leg support has the advantages that a traditional single group of sliding rails is replaced by the two groups of sliding rails which are arranged in a stacked mode, the whole length of the leg support is smaller when the leg support is folded while it is guaranteed that the extension length of the expansion plate is certain, the thickness of the leg support is smaller when the leg support is folded due to the adoption of a sliding extension mode, and the leg support is more convenient to use. Therefore, the overall space occupancy rate when the leg support is folded is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of leg supports, in particular to a single-expansion-plate two-level telescopic sliding installation structure applied to a seat leg support. Background Art

[0002] Leg rests are typically folded and mounted to the bottom of a car seat. They can be deployed manually or electrically to support the passenger's calves, ensuring a comfortable ride. In existing technology, leg rests often utilize a linkage mechanism to achieve forward extension and rotation. This structure results in a large overall size when folded, while the actual installation space is very limited, leaving room for improvement in the interior space layout of the vehicle.

[0003] To address these issues, a sliding extension leg rest has been introduced. This involves installing a slide rail on the leg rest bracket, onto which an extension plate slides. While this structure allows the overall length of the leg rest to be shortened to a certain extent when folded, to ensure the extended length of the leg rest extension plate to better support the occupant's calves, the single set of slide rails on the side of the leg rest bracket often needs to be designed to be relatively long. This results in a less-than-ideal length when the leg rest is folded, and further optimization is still needed. Utility Model Content

[0004] In view of this, the utility model provides a single expansion plate two-stage telescopic sliding installation structure applied to a seat leg rest, aiming to further shorten the folded size of the leg rest.

[0005] To achieve the above purpose, the technical solution of this utility model is as follows:

[0006] A single expansion plate two-stage telescopic sliding mounting structure for a seat leg rest includes a leg rest main support body and an expansion plate, and is characterized in that a first slide seat is fixedly provided on the side of the leg rest main support body, a first slider is slidably connected to the first slide seat, a second slide seat is fixedly assembled on the outer side of the first slider, a second slider is slidably connected to the second slide seat, and the expansion plate is fixedly connected to the second slider.

[0007] By adopting the above structure, the single set of slide rails is replaced by two stacked sets of slide rails. Under the premise of ensuring the same extension length of the expansion board, the leg rest can have a shorter folded length.

[0008] Preferably, a mounting plate is provided between the first sliding block and the second sliding seat, and an extension plate is fixedly provided on the top of the mounting plate. The above structure can further support the calf of the passenger, so that the calf of the passenger is supported more completely.

[0009] Preferably, the first slide seat has first folded portions at both ends thereof, and balls are provided between the upper and lower ends of the first slider and the corresponding first folded portions. The balls are supported on the first slider via positioning sleeves. This structure allows for more stable sliding of the first slider.

[0010] Preferably, the second slide has second folded portions at both ends thereof, and balls are provided between the upper and lower ends of the second slide and the corresponding second folded portions. The balls are supported on the second slide by positioning sleeves. This structure allows for more stable sliding of the second slide.

[0011] Preferably, one end of the first slide rests against the end of the leg support main support body close to the car seat, and one end of the second slide rests against the end of the first slider close to the car seat. With the above structure, the overall length of the leg support is smaller when folded.

[0012] Preferably, the first slide, the first slider, the second slide and the second slider are of the same length. The above structure can increase the overall extension length of the expansion board and also ensure that the length of the leg support is smaller when it is folded.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model provides a single expansion plate two-stage telescopic sliding installation structure for the seat leg rest, replacing the single set of slide rails with two stacked sets of slide rails. Under the premise of ensuring the same extension length of the expansion plate, the leg rest can have a shorter folded length. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the two-stage telescopic sliding installation structure in actual use;

[0016] Figure 2 It is a structural diagram of a two-stage telescopic sliding installation structure;

[0017] Figure 3 for Figure 2 A partial enlarged schematic diagram;

[0018] Figure 4 A structural diagram showing the assembly relationship between the first slide seat 2 and the first slider 3;

[0019] Figure 5 This is a diagram showing the working principle of the secondary telescopic sliding installation structure. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0021] like Figure 1 The figure shows a single-expansion-plate, two-stage telescopic sliding mounting structure for a seat leg rest, comprising a main leg rest support body 1 and an expansion plate 6. In this embodiment, the main leg rest support body 1 is flipped and mounted at the front end of the bottom of the vehicle seat, while the expansion plate 6 supports the occupant's lower legs. A first slide 2 is bolted to the side of the main leg rest support body 1, on which a first slider 3 is slidably mounted. A second slide 4 is also bolted to the outside of the first slider 3, on which a second slider 5 is slidably mounted. The expansion plate 6 is fixedly connected to the slider 5.

[0022] With this design, by replacing the traditional single set of slide rails with two stacked sets of slide rails, while ensuring a certain extension length of the expansion plate 6, the overall length of the leg rest is smaller when the leg rest is folded, and the sliding extension method makes the thickness of the leg rest lower when folded, thereby reducing the overall space occupancy rate when the leg rest is folded.

[0023] In this embodiment, the expansion plate 6 is fixedly installed on the outer side of the second slider 5 by bolts, and the front end of the expansion plate 6 is close to the front end of the second slider 5. With this design, the overall length of the leg rest will not be increased due to the expansion plate 6, thereby reducing the overall length of the leg rest when it is folded.

[0024] Further, such as Figure 2 As shown, a mounting plate 7 is fixedly installed between the first slider 3 and the second slider 4, and an extension plate 8 is fixedly installed on the top of the mounting plate 7 by bolts. In this embodiment, the length of the extension plate 8 is consistent with the length of the first slider 3. The extension plate 8 is also used to support the calf of the occupant. Such a design can enable the calf of the occupant to be supported more completely.

[0025] like Figure 4 As shown, in this embodiment, the upper and lower ends of the first slide 2 are folded outward to form a first folded portion 2a, and the upper and lower ends of the first slider 3 are installed between the corresponding first folded portions 2a. The ball 9 is supported on the first slider 3 through a positioning sleeve 10.

[0026] Similarly, if Figure 3 As shown, the second slide seat 4 has second folded portions 4a folded outward at both upper and lower ends, and balls 9 are installed between the upper and lower ends of the second slider 5 and the corresponding second folded portions 4a. The balls 9 are supported on the second slider 5 through positioning sleeves 10.

[0027] The balls 9 and the positioning sleeves 10 can enable the first slider 3 and the second slider 5 to slide more stably and smoothly.

[0028] like Figure 1 and Figure 2As shown, in this embodiment, the first slide 2, first slider 3, second slide 4, and second slider 5 are of the same length. One end of the first slide 2 abuts against the end of the leg rest main support body 1 closest to the car seat, while one end of the second slide 4 abuts against the end of the first slider 3 closest to the car seat. This design ensures that the expansion plate 6 can be extended a longer distance and also ensures that the overall length of the leg rest is smaller when folded, thereby optimizing the overall space occupancy of the leg rest.

[0029] Combine Figure 5 As shown, under the conventional single-layer slide rail, the first slide seat 2 and the first slider 3 slide together, in order to make the first slider 3 slide and extend to Figure 5 The rightmost position of the second slide 5 can only be achieved by increasing the length of the first slide 2 or the first slide 3. In this way, when the leg support is folded, the overall size of the leg support increases. Figure 5 When the leg rest is in the middle position and folded, its overall length is increased, which greatly optimizes the overall space occupancy of the leg rest.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention. Such changes fall within the scope of protection of the present invention.

Claims

1. A single expansion plate two-stage telescopic sliding installation structure for a seat leg rest, comprising a leg rest main support body (1) and an expansion plate (6), characterized in that: A first slide seat (2) is fixedly provided on the side of the main support body (1) of the leg support, a first slider (3) is slidably connected to the first slide seat (2), a second slide seat (4) is fixedly assembled on the outer side of the first slider (3), a second slider (5) is slidably connected to the second slide seat (4), and the expansion plate (6) is fixedly connected to the second slider (5).

2. The single expansion plate two-stage telescopic sliding installation structure for a seat leg rest according to claim 1, characterized in that: A mounting plate (7) is provided between the first sliding block (3) and the second sliding seat (4), and an extension plate (8) is fixedly provided on the top of the mounting plate (7).

3. The single expansion plate two-stage telescopic sliding installation structure for a seat leg rest according to claim 1, characterized in that: The upper and lower ends of the first slide seat (2) are both folded outward to form first folding portions (2a), and balls (9) are provided between the upper and lower ends of the first slide block (3) and the corresponding first folding portions (2a), and the balls (9) are supported on the first slide block (3) via positioning sleeves (10).

4. The single expansion plate two-stage telescopic sliding installation structure for a seat leg rest according to claim 3, characterized in that: The second sliding seat (4) has second folding portions (4a) folded outward at both upper and lower ends, and balls (9) are provided between the upper and lower ends of the second sliding block (5) and the corresponding second folding portions (4a). The balls (9) are supported on the second sliding block (5) via positioning sleeves (10).

5. The single expansion plate two-stage telescopic sliding installation structure for a seat leg rest according to claim 1, characterized in that: One end of the first slide seat (2) abuts against one end of the leg support main support body (1) close to the car seat, and one end of the second slide seat (4) abuts against one end of the first slide block (3) close to the car seat.

6. The single expansion plate two-stage telescopic sliding installation structure for a seat leg rest according to claim 5, characterized in that: The first slide seat (2), the first sliding block (3), the second slide seat (4) and the second sliding block (5) have the same length.

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