Electric thigh support mounting structure

Abstract

The invention discloses an electric 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 invention, the mounting 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] The invention relates to the technical field of electric seats, in particular to an electric thigh support installation structure. Background Art

[0002] With the upgrading of consumption level, consumers have more and more stringent requirements for seat comfort. At present, whether it is used in vehicle seats or home seats, they are generally designed with electric leg rests that can be automatically deployed to support the user's thighs, thereby improving riding comfort.

[0003] The electric thigh leg rest for a seat in the patent number "CN210707038U" includes: a slide seat, a connection block, a push block, a leg rest support plate, a drive motor, and a screw rod, wherein the slide seat is fixedly mounted on the upper surface of the seat basin, and the slide seat is provided with two parallel slide bar grooves; the connection block includes a screw rod connection part, and protrusions extending upward at both ends of the screw rod connection part, wherein the screw rod connection part is located on the lower side of the slide seat, and the protrusions can move forward and backward in the corresponding slide bar groove; the push block is slidably mounted on the slide seat and fixedly connected to the protrusion; the leg rest 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 through the motor bracket; the screw rod is mounted on the output end of the drive motor and is threadedly matched with the screw rod connection part. The drive motor drives the screw rod to rotate, driving the leg rest support plate to slide forward and backward on the seat basin, thereby realizing the automatic deployment and retraction of the leg rest. The leg rest has a relatively simple structure, high positioning accuracy between the components, easy assembly, and smooth sliding of the leg rest, which effectively improves the reliability and comfort of the product.

[0004] However, the above-mentioned leg rests are all metal parts, which have high requirements on the manufacturing process, welding has a great influence on the geometric tolerance, and they are heavy. At the same time, they are not conducive to low-carbon and environmental protection. Summary of the invention

[0005] The purpose of the present invention is to provide an electric thigh support installation structure, which can simplify the leg support installation components, optimize the assembly method, is conducive to low-carbon and environmental protection, reduces the manufacturing process, and is suitable for mass production.

[0006] The electric thigh leg support installation structure includes a seat basin, the key of which is that a leg support plate is installed above the seat basin, and a connecting block is installed below the leg support plate; a driving motor is installed below the seat basin, and a screw rod is threadedly installed at the output end of the driving motor;

[0007] The seat basin is provided with a sliding strip groove, and the connecting block passes through the sliding strip groove and is connected with the screw rod.

[0008] With the above structure, the driving motor drives the screw rod to rotate, driving the leg rest support plate to slide forward and backward on the seat basin, thereby realizing the automatic deployment and retraction of the leg rest. The leg rest support plate is mounted on the upper surface of the front part of the seat basin, which provides a guarantee for the leg rest support plate and the seat cushion to share a cover. When the leg rest is deployed and used, there is no gap at the front end of the seat, ensuring comfort and improving user experience. The present invention simplifies the installation components and optimizes the assembly method.

[0009] At the same time, except for the motor and the fasteners, all materials used in the present invention are low-carbon and environmentally friendly recycled materials or bio-based materials, so that the present invention has lower requirements on the manufacturing process and reduces the weight.

[0010] 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;

[0011] The leg rest support plate is movably connected to the base and the seat basin through anti-slip bolts; and the leg rest support plate is provided with an anti-slip strip groove parallel to the sliding strip groove;

[0012] The anti-slip bolt comprises an anti-slip screw, the threaded portion of which passes through the anti-slip strip groove and the seat basin in sequence and is threadedly connected with the anti-slip nut;

[0013] The diameter of the head of the anti-slip screw is greater than the width of the anti-slip strip groove.

[0014] The base supports the leg rest support plate to optimize the support strength. At the same time, the above structure can prevent the leg rest support plate from flying off the seat basin when the vehicle collides, thereby improving the safety performance of the leg rest.

[0015] Furthermore, a spring sheet installation groove is formed on the base, a spring sheet is installed above the spring sheet installation groove, and the spring sheet contacts the lower surface of the leg rest support plate.

[0016] The spring piece absorbs two lateral tolerances and can flexibly adjust the sliding force of the leg rest support plate.

[0017] Furthermore, the leg rest support plate, the connecting block and the base are all made of recycled plastic or bio-based materials.

[0018] The leg support plate, the connecting block and the base are made of low-carbon and environmentally friendly recycled plastics or bio-based materials as raw materials, which not only reduces the weight of the invention but also makes the invention more low-carbon and environmentally friendly.

[0019] At the same time, FEA analysis of the rigidity strength of recycled plastics and bio-based materials is not inferior to that of metals, and recycled plastics and bio-based materials have lower requirements for manufacturing processes and are more suitable for mass production.

[0020] Furthermore, the connecting block includes a support plate connecting portion, which is fixedly connected to the leg rest support plate, and a screw rod connecting portion is installed below the support plate connecting portion, and the screw rod connecting portion passes through the sliding strip groove and is connected to the screw rod.

[0021] Furthermore, the support plate connecting portion and the screw rod connecting portion are integrally formed.

[0022] Furthermore, the leg rest support plate is provided with a positioning card hole, and the support plate connecting part is provided with a positioning card block, and the positioning card block is engaged with the positioning card hole.

[0023] Furthermore, the support plate connecting portion and the leg rest support plate are integrally formed.

[0024] Furthermore, the screw rod connecting portion clamps the screw rod, and the screw rod connecting portion and the screw rod are fixedly connected by a latch.

[0025] Furthermore, a motor bracket is installed under the seat basin, and the motor bracket includes an integrally formed seat basin fixing portion and a motor mounting portion, and the two are perpendicular to each other;

[0026] The seat basin fixing portion is fixedly connected to the seat basin;

[0027] A reducer is installed at the output end of the driving motor, the outer shell of the reducer is fixedly connected to the motor mounting part, the bearing of the reducer is sleeved on the screw rod, and the two are threadedly connected.

[0028] The seat basin fixing part and the motor mounting part are both plate-shaped structures, which are easy to process and assemble.

[0029] Beneficial effects: The driving motor drives the screw rod to rotate, driving the leg rest support plate to slide forward and backward on the seat basin, thereby realizing the automatic deployment and retraction of the leg rest. The leg rest support plate is assembled on the upper surface of the front part of the seat basin, which ensures that the leg rest support plate and the seat cushion share a cover. When the leg rest is deployed and used, there is no gap at the front end of the seat, ensuring comfort and improving user experience. At the same time, the installation components are streamlined and the assembly method is optimized.

[0030] The leg support plate, the connecting block and the base are made of low-carbon and environmentally friendly recycled plastic or bio-based materials, which not only reduces the weight of the invention, but also makes the invention more low-carbon and environmentally friendly. At the same time, the FEA analysis of the rigidity strength of recycled plastic and bio-based materials is not weaker than that of metal, and recycled plastic and bio-based materials have lower requirements for manufacturing process and are more suitable for mass production.

[0031] When the vehicle collides, the anti-slip groove can prevent the leg rest support plate from flying off the seat basin, thereby improving the safety performance of the leg rest.

[0032] The spring piece absorbs two lateral tolerances and can flexibly adjust the sliding force of the leg rest support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0035] Figure 3 This is a schematic diagram of the base installation;

[0036] Figure 4 is a schematic diagram of the support plate structure;

[0037] Figure 5 This is a schematic diagram of the installation of the sliding mechanism;

[0038] Figure 6 This is a schematic diagram of the motor and lead screw installation;

[0039] Figure 7 This is a schematic diagram of the integral molding of the support plate and the connecting block. DETAILED DESCRIPTION

[0040] The specific implementation manner and working principle of the present invention are further described in detail below with reference to the accompanying drawings.

[0041] like Figure 3 As shown, the electric thigh support installation structure includes a seat basin 1, on which a sliding strip groove 1a is opened, and the sliding strip groove 1a is arranged in the center.

[0042] 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 symmetry axis, and are fixedly connected to the seat basin 1 through a plurality of rivets. A plurality of spring-piece installation grooves 3a are opened on the base 3, and a spring piece 3b is installed above each spring-piece installation groove 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.

[0043] In addition, a base 3 can be installed above the basin 1. The base 3 is in a "concave" shape, and its protruding parts are respectively located on both sides of the sliding strip groove 1a.

[0044] like Figure 1-2 , Figure 4 As shown, a leg rest support plate 2 is installed above the base 3, and the leg rest support plate 2 has two groups of anti-slip strip groove combinations, each group of anti-slip strip groove combinations includes two anti-slip strip grooves 2a parallel to the sliding strip grooves 1a, and the two anti-slip strip grooves 2a are respectively located on both sides of the central axis of the leg rest support plate 2.

[0045] The leg support plate 2, the base 3 and the seat basin 1 are connected by anti-drop bolts.

[0046] The anti-slip bolt includes an anti-slip screw and an anti-slip nut. The thread of the anti-slip screw passes through the anti-slip strip groove 2a, the base 3, and the seat basin 1 in sequence, and is threadedly connected with the anti-slip nut. The diameter of the head of the anti-slip screw is greater than the width of the anti-slip strip groove 2a.

[0047] like Figure 2 , 3 As shown, the middle parts of all the spring pieces 3b are in contact with the lower surface of the leg support plate 2 and are respectively located on both sides of the anti-slip strip groove 2a.

[0048] like Figure 1-2 , Figure 5-6 As shown, a driving motor 6, a screw rod 7 and a motor bracket 4 are installed below the seat basin 1, and a reducer 10 is installed at the output end of the driving motor 6. The bearing of the reducer 10 is mounted on the screw rod 7, and the two are threadedly connected.

[0049] The motor bracket 4 includes an integrally formed seat basin fixing portion 4a and a motor mounting portion 4b; the seat basin fixing portion 4a is fixedly connected to the lower surface of the seat basin 1; and the motor mounting portion 4b is fixedly connected to the outer shell of the reducer 10.

[0050] The seat basin fixing portion 4a and the motor mounting portion 4b are both plate-shaped structures, and the two are perpendicular to each other.

[0051] like Figure 1-5 As shown, the leg rest support plate 2 is provided with a positioning card hole 2b, and a connecting block 5 is installed under the leg rest support plate 2, and the connecting block 5 includes an integrally formed support plate connecting part 5a and a screw connecting part 5b, and a positioning card block 5a1 is provided on the support plate connecting part 5a, and the positioning card block 5a1 is engaged with the positioning card hole 2b.

[0052] like Figure 7 As shown, the leg rest support plate 2 and the connecting block 5 can also be integrally formed.

[0053] After the screw rod connecting portion 5 b passes through the sliding strip groove 1 a , it clamps the screw rod 7 , and the screw rod connecting portion 5 b and the screw rod 7 are fixedly connected by a latch 9 .

[0054] Except for the driving motor 6, the reducer 10, the anti-drop screws, the rivets and other fasteners, the above structure is made of low-carbon and environmentally friendly recycled materials or bio-based materials.

[0055] 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, and such changes all fall within the scope of protection of the present invention.

Claims

1. An electric thigh support installation 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 screw rod (7) is threadedly installed at the output end of the drive motor (6); The seat basin (1) is provided with a sliding strip groove (1a), and the connecting block (5) passes through the sliding strip groove (1a) and is connected to the screw rod (7).

2. The electric thigh support installation structure according to claim 1 is 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 basin (1) via anti-slip bolts; and the leg support plate (2) is provided with an anti-slip strip groove (2a) parallel to the sliding strip groove (1a); The anti-slip bolt comprises an anti-slip screw, the threaded portion of which passes through the anti-slip strip groove (2a) and the seat basin (1) in sequence and is then threadedly connected with the anti-slip nut; The diameter of the head of the anti-slip screw is greater than the width of the anti-slip strip groove (2a).

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

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

5. The electric thigh support installation structure according to claim 1, characterized in that: The connecting block (5) comprises a support plate connecting portion (5a), the support plate connecting portion (5a) being fixedly connected to the leg support plate (2), a screw rod connecting portion (5b) being installed below the support plate connecting portion (5a), the screw rod connecting portion (5b) passing through the sliding strip groove (1a) and connected to the screw rod (7).

6. The electric thigh support installation structure according to claim 5, characterized in that: The support plate connecting portion (5a) and the screw rod connecting portion (5b) are integrally formed.

7. The electric thigh support installation structure according to claim 6, characterized in that: The leg support plate (2) is provided with a positioning card hole (2b), and the support plate connecting portion (5a) is provided with a positioning card block (5a1), and the positioning card block (5a1) is engaged with the positioning card hole (2b).

8. The electric thigh support installation structure according to claim 6, characterized in that: The support plate connecting portion (5a) is integrally formed with the leg support plate (2).

9. The electric thigh support installation structure according to claim 5, characterized in that: The screw rod connecting portion (5b) clamps the screw rod (7), and the screw rod connecting portion (5b) and the screw rod (7) are fixedly connected via a latch (9).

10. The electric thigh support installation structure according to claim 1, characterized in that: A motor bracket (4) is installed below the seat basin (1), and the motor bracket (4) comprises an integrally formed seat basin fixing portion (4a) and a motor mounting portion (4b), and the two are perpendicular to each other; The seat basin fixing portion (4a) is fixedly connected to the seat basin (1); A reducer (10) is installed at the output end of the driving motor (6), the outer shell of the reducer (10) is fixedly connected to the motor mounting portion (4b), the bearing of the reducer (10) is sleeved on the screw rod (7), and the two are threadedly connected.

Images