Mounting structure for thigh support of seat

Abstract

The utility model discloses a seat thigh support mounting structure which is characterized in that a leg support supporting plate is mounted above a seat basin, and a connecting block is mounted below the leg support supporting plate; a driving motor is mounted below the seat basin, and a screw rod is mounted at the output end of the driving motor in a threaded manner; a sliding strip-shaped groove is formed in the seat basin, and the connecting block penetrates through the sliding strip-shaped groove to be connected with the lead screw. The leg support has the advantages that the driving motor drives the lead screw to rotate to drive the leg support supporting plate to slide back and forth on the seat basin, and therefore automatic unfolding and folding of the leg support are achieved. The leg support supporting plate is assembled on the upper surface of the front portion of the seat basin, it is guaranteed that the leg support supporting plate and the seat cushion share one face sleeve, when the leg support is unfolded for use, the front end of the seat is seamless, comfort is guaranteed, and user experience is improved. According to the utility model, the installation assembly is simplified, and the assembly mode is optimized. Meanwhile, the requirement for the manufacturing process is low, and the weight is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electric seat technology, and in particular to a seat thigh support mounting structure. Background Technology

[0002] As living standards improve, consumers are demanding higher levels of comfort from their seats. Currently, both vehicle and home seating commonly incorporates electrically adjustable leg rests that automatically extend to support the user's thighs, thereby enhancing seating comfort.

[0003] The electric thigh support for a seat, patent number CN210707038U, includes: a slide, a connecting block, a push block, a leg support plate, a drive motor, and a lead screw. The slide is fixedly mounted on the upper surface of the seat basin and has two parallel sliding slots. The connecting block includes a lead screw connection portion and protrusions extending upwards at both ends of the lead screw connection portion. The lead screw connection portion is located on the lower side of the slide, and the protrusions can move back and forth within the corresponding sliding slots. The push block is slidably mounted on the slide and fixedly connected to the protrusions. The leg support plate is fixedly mounted on the upper surface of the push block. The drive motor is connected to the lower surface of the seat basin via a motor bracket. The lead screw is mounted on the output end of the drive motor and threadedly engages with the lead screw connection portion. The drive motor drives the lead screw to rotate, causing the leg support plate to slide back and forth on the seat basin, thus automatically unfolding and retracting the leg support. The leg rest has a relatively simple structure, high positioning accuracy between its components, and is easy to assemble. The leg rest slides smoothly, effectively improving the reliability and comfort of the product.

[0004] However, the aforementioned leg supports are all metal parts, which require high manufacturing processes, have a significant impact on geometric tolerances due to welding, are relatively heavy, and are not conducive to low-carbon and environmental protection. Utility Model Content

[0005] The purpose of this utility model is to provide a seat thigh support installation structure that simplifies the thigh support installation components, optimizes the assembly method, promotes low carbon emissions and environmental protection, reduces manufacturing processes, and is suitable for mass production.

[0006] A seat thigh support mounting structure includes a seat basin, the key feature of which is that a leg support support plate is installed above the seat basin, and a connecting block is installed below the leg support support plate; a drive motor is installed below the seat basin, and a lead screw is threaded onto the output end of the drive motor.

[0007] The seat basin has a sliding groove, and the connecting block passes through the sliding groove and is connected to the lead screw.

[0008] With the above structure, the drive motor drives the lead screw to rotate, causing the leg support plate to slide back and forth on the seat, thereby realizing the automatic unfolding and retraction of the leg support. The leg support plate is assembled on the upper front surface of the seat, ensuring that the leg support plate and the seat cushion share the same cover. When the leg support is unfolded, there is no gap at the front of the seat, ensuring comfort and improving the user experience.

[0009] This utility model simplifies the installation components and optimizes the assembly method.

[0010] Meanwhile, except for the motor and fasteners, all other components of this invention are made of low-carbon and environmentally friendly recycled or bio-based materials, which makes the manufacturing process less demanding and reduces the weight of this invention.

[0011] Furthermore, at least one base is installed between the seat basin and the leg support plate, and each base is fixedly connected to the seat basin by rivets;

[0012] The leg support plate is movably connected to the base and seat basin by anti-slip bolts; and the leg support plate has an anti-slip groove parallel to the sliding groove.

[0013] The anti-loosening bolt includes an anti-loosening screw, the teeth of which pass through the anti-loosening strip groove and the seat in sequence, and are threadedly connected to the anti-loosening nut.

[0014] The diameter of the head of the anti-loosening screw is greater than the width of the anti-loosening groove.

[0015] The base supports the leg rest support plate, optimizing support strength. Furthermore, this structure prevents the leg rest support plate from flying off the seat in the event of a vehicle collision, thus improving the safety performance of the leg rest.

[0016] Furthermore, the base has a spring plate mounting groove, and a spring plate is installed above the spring plate mounting groove, which contacts the lower surface of the leg support plate.

[0017] The spring absorbs tolerances from both sides, allowing for flexible adjustment of the sliding force of the leg support plate.

[0018] Furthermore, the leg support plate, connecting block, and base are all made of recycled plastic or bio-based materials.

[0019] The leg support plate, connecting block and base are made of low-carbon and environmentally friendly recycled plastic or bio-based materials, which not only reduces the weight of this utility model, but also makes it more low-carbon and environmentally friendly, actively responding to the national energy conservation and carbon reduction action.

[0020] Meanwhile, the rigidity strength of recycled plastics and bio-based materials, as determined by FEA analysis, is no weaker than that of metals. Furthermore, recycled plastics and bio-based materials have lower requirements for manufacturing processes, making them more suitable for mass production.

[0021] Furthermore, the connecting block includes a support plate connecting part, which is fixedly connected to the leg support plate. A lead screw connecting part is installed below the support plate connecting part, which passes through the sliding strip groove and is connected to the lead screw.

[0022] Furthermore, the support plate connecting part and the lead screw connecting part are integrally formed.

[0023] Furthermore, the leg support plate is provided with positioning holes, and the connecting part of the support plate is provided with positioning blocks, which engage with the positioning holes.

[0024] Furthermore, the support plate connecting part is integrally formed with the leg support plate.

[0025] Furthermore, the lead screw connection part clamps the lead screw, and the lead screw connection part and the lead screw are fixedly connected by a pin.

[0026] Furthermore, a motor bracket is installed below the seat, the motor bracket including an integrally formed seat fixing part and a motor mounting part, and the two are perpendicular to each other.

[0027] The basin fixing part is fixedly connected to the basin;

[0028] A reducer is installed at the output end of the drive motor. The housing of the reducer is fixedly connected to the motor mounting part. The bearing of the reducer is fitted onto the lead screw, and the two are threaded together.

[0029] Both the seat fixing part and the motor mounting part are plate-shaped structures, which facilitates processing and assembly.

[0030] Beneficial effects: The drive motor rotates the lead screw, causing the leg support plate to slide back and forth on the seat, thus achieving automatic unfolding and retraction of the leg support. The leg support plate is mounted on the upper front surface of the seat, ensuring that the leg support plate and seat cushion share a single cover. When the leg support is unfolded, there are no gaps at the front of the seat, ensuring comfort and improving the user experience. At the same time, it simplifies installation components and optimizes the assembly method.

[0031] The leg support plate, connecting block, and base are made from low-carbon and environmentally friendly recycled plastics or bio-based materials. This not only reduces the weight of the invention but also makes it more low-carbon and environmentally friendly, actively responding to the national energy conservation and carbon reduction initiatives. Furthermore, the rigidity strength of recycled plastics and bio-based materials, as determined by FEA analysis, is no weaker than that of metals. Moreover, recycled plastics and bio-based materials have lower requirements for manufacturing processes, making them more suitable for mass production.

[0032] In the event of a vehicle collision, the anti-slip grooves prevent the leg support plate from flying off the seat, thus improving the safety performance of the leg support.

[0033] The spring absorbs tolerances from both sides, allowing for flexible adjustment of the sliding force of the leg support plate. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of this utility model;

[0035] Figure 2 This is a schematic cross-sectional view of the present invention.

[0036] Figure 3 This is a schematic diagram of the base installation;

[0037] Figure 4 This is a schematic diagram of the support plate structure;

[0038] Figure 5 A schematic diagram of the sliding mechanism installation;

[0039] Figure 6 This is a schematic diagram of the motor and lead screw installation;

[0040] Figure 7 This is a schematic diagram showing the support plate and connecting block being integrally formed. Detailed Implementation

[0041] The specific embodiments and working principle of this utility model will be further described in detail below with reference to the accompanying drawings.

[0042] like Figure 3 As shown, a seat thigh support mounting structure includes a seat basin 1, on which a sliding strip groove 1a is formed, and the sliding strip groove 1a is centrally arranged.

[0043] like Figure 3 As shown, two bases 3 are installed above the seat basin 1. The two bases 3 are symmetrically arranged on both sides of the sliding strip groove 1a with the sliding strip groove 1a as the axis of symmetry, and are fixedly connected to the seat basin 1 by a number of rivets. A number of spring piece mounting slots 3a are opened on the base 3, and a spring piece 3b is installed above each spring piece mounting slot 3a. The two ends of the spring piece 3b are fixedly connected to the base 3, and the middle part of the spring piece 3b protrudes upward.

[0044] In addition, a base 3 can be installed above the basin 1. The base 3 is concave, and its protruding parts are located on both sides of the sliding strip groove 1a.

[0045] like Figure 1-2 , Figure 4As shown, a leg support plate 2 is installed above the base 3. The leg support plate 2 has two sets of anti-slip strip grooves. Each set of anti-slip strip grooves includes two anti-slip strip grooves 2a that are parallel to the sliding strip groove 1a. The two anti-slip strip grooves 2a are located on both sides of the central axis of the leg support plate 2.

[0046] The leg support plate 2, base 3, and seat 1 are connected by anti-loosening bolts.

[0047] The anti-loosening bolt includes an anti-loosening screw and an anti-loosening nut. The teeth of the anti-loosening screw pass through the anti-loosening strip groove 2a, the base 3, and the seat 1 in sequence, and are threadedly connected to the anti-loosening nut. The diameter of the head of the anti-loosening screw is greater than the width of the anti-loosening strip groove 2a.

[0048] like Figure 2 , 3 As shown, the middle part of all the spring pieces 3b is in contact with the lower surface of the leg support plate 2, and is located on both sides of the anti-slip groove 2a.

[0049] like Figure 1-2 , Figure 5-6 As shown, a drive motor 6, a lead screw 7, and a motor bracket 4 are installed below the seat basin 1. A reducer 10 is installed at the output end of the drive motor 6. The bearing of the reducer 10 is fitted onto the lead screw 7, and the two are threadedly connected.

[0050] The motor bracket 4 includes an integrally formed seat fixing part 4a and a motor mounting part 4b; the seat fixing part 4a is fixedly connected to the lower surface of the seat 1; the motor mounting part 4b is fixedly connected to the outer shell of the reducer 10.

[0051] Both the basin fixing part 4a and the motor mounting part 4b are plate-shaped structures, and they are perpendicular to each other.

[0052] like Figure 1-5 As shown, the leg support plate 2 is provided with a positioning hole 2b, and a connecting block 5 is installed below the leg support plate 2. The connecting block 5 includes an integrally formed support plate connecting part 5a and a lead screw connecting part 5b. A positioning block 5a1 is provided on the support plate connecting part 5a, and the positioning block 5a1 engages with the positioning hole 2b.

[0053] like Figure 7 As shown, the leg support plate 2 and the connecting block 5 can also be integrally formed.

[0054] After the lead screw connection part 5b passes through the sliding strip groove 1a, it clamps the lead screw 7, and the lead screw connection part 5b and the lead screw 7 are fixedly connected by the pin 9.

[0055] Except for the drive motor 6, reducer 10, anti-loosening screws, rivets and other fasteners, the above structures are all made of low-carbon and environmentally friendly recycled or bio-based materials.

[0056] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A seat thigh support mounting structure, comprising a seat basin (1), characterized in that, A leg support plate (2) is installed above the seat basin (1), and a connecting block (5) is installed below the leg support plate (2); a drive motor (6) is installed below the seat basin (1), and a lead screw (7) is threaded onto the output end of the drive motor (6); The basin (1) has a sliding groove (1a), and the connecting block (5) passes through the sliding groove (1a) and is connected to the lead screw (7).

2. The seat thigh support mounting structure according to claim 1, characterized in that, At least one base (3) is installed between the seat basin (1) and the leg support plate (2), and each base (3) is fixedly connected to the seat basin (1) by rivets; The leg support plate (2) is movably connected to the base (3) and the seat (1) by anti-slip bolts; and the leg support plate (2) has an anti-slip groove (2a) parallel to the sliding groove (1a); The anti-loosening bolt includes an anti-loosening screw, the teeth of which pass through the anti-loosening strip groove (2a) and the seat (1) in sequence, and are threadedly connected to the anti-loosening nut; The diameter of the head of the anti-loosening screw is greater than the width of the anti-loosening groove (2a).

3. The seat thigh support mounting structure according to claim 2, characterized in that, The base (3) has a spring plate mounting groove (3a), and a spring plate (3b) is installed above the spring plate mounting groove (3a). The spring plate (3b) is in contact with the lower surface of the leg support plate (2).

4. The seat thigh support mounting structure according to claim 2, characterized in that, The leg support plate (2), connecting block (5) and base (3) are all made of recycled plastic or bio-based materials.

5. The seat thigh support mounting structure according to claim 1, characterized in that, The connecting block (5) includes a support plate connecting part (5a), which is fixedly connected to the leg support plate (2). A screw connecting part (5b) is installed below the support plate connecting part (5a), which passes through the sliding strip groove (1a) and is connected to the screw (7).

6. The seat thigh support mounting structure according to claim 5, characterized in that, The support plate connecting part (5a) and the lead screw connecting part (5b) are integrally formed.

7. The seat thigh support mounting structure according to claim 6, characterized in that, The leg support plate (2) is provided with a positioning hole (2b), and the support plate connecting part (5a) is provided with a positioning block (5a1), which engages with the positioning hole (2b).

8. A seat thigh support mounting structure according to claim 6, characterized in that, The support plate connecting part (5a) is integrally formed with the leg support plate (2).

9. A seat thigh support mounting structure according to claim 5, characterized in that, The lead screw connection part (5b) clamps the lead screw (7), and the lead screw connection part (5b) and the lead screw (7) are fixedly connected by a pin (9).

10. A seat thigh support mounting structure according to claim 1, characterized in that, A motor bracket (4) is installed below the seat (1). The motor bracket (4) includes an integrally formed seat fixing part (4a) and a motor mounting part (4b), and the two are perpendicular to each other. The seat fixing part (4a) is fixedly connected to the seat (1); The output end of the drive motor (6) is equipped with a reducer (10), the outer housing of the reducer (10) is fixedly connected to the motor mounting part (4b), the bearing of the reducer (10) is fitted onto the lead screw (7), and the two are threadedly connected.

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