Leg supporting structure of automobile seat

Abstract

The utility model belongs to the technical field of automobile seats, and discloses an automobile seat leg supporting structure which comprises a seat base, a leg support arranged on one side of the seat base and hinged to the seat base, and an angle adjusting mechanism used for adjusting the supporting angle of the leg support. The buffering mechanism is arranged on the angle adjusting mechanism and used for adjusting the angle interval of the leg support with the adjusted supporting angle, the soft layer is arranged on the leg support and attached to the human body, and the comfort adjusting mechanism used for adjusting the comfort of the human body is arranged in the soft layer. The leg supporting device can effectively support legs, the supporting angle can be adjusted, an air bag is further arranged for supporting and adjusting, and comfort is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile seats, and in particular relates to a leg support structure of an automobile seat. Background Art

[0002] Car seats are an indispensable part of a car.

[0003] Authorization announcement number CN213948228U discloses a car seat leg support device, including a seat body, a mounting box fixedly installed at the bottom end of the seat body, a No. 1 gear installed inside the mounting box, a No. 2 gear installed above the No. 1 gear, a connecting rod installed at the front end face of the No. 2 gear, the No. 2 gear and the connecting rod are connected through a No. 1 short shaft, a slide rail located inside the mounting box is fixedly installed at one end of the connecting rod, a push rod is installed inside the slide rail, the push rod and the connecting rod are connected through the No. 2 short shaft, a footrest is movably connected to one side of the lower end face of the push rod, a fixed block is fixedly installed on the other side of the lower end face of the push rod, a No. 1 stepper motor is fixedly installed on one side of the fixed block, and a threaded rod is installed on the upper end face of the No. 1 stepper motor. The car seat leg support device has a simple structure, is easy to operate, easy to use, easy to store, and easy to adjust the rotation angle of the footrest according to the leg length of the user, thereby improving the comfort of the user.

[0004] But it has the following problems:

[0005] (1) Only the feet are supported, but the legs are not effectively supported.

[0006] (2) The comfort level is poor and cannot provide better service to users.

[0007] Therefore, a car seat leg support structure is needed to solve the above problems. Utility Model Content

[0008] The utility model provides a car seat leg support structure, which solves part or all of the technical problems existing in the prior art.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A car seat leg support structure, comprising:

[0011] Seat base;

[0012] A leg support is arranged on one side of the seat base and is hinged to the seat base;

[0013] An angle adjustment mechanism, used to adjust the angle of the leg support;

[0014] The buffer mechanism is arranged on the angle adjustment mechanism, and can selectively change the fixed angle positioning of the leg support after the support angle is adjusted to the angle range positioning;

[0015] The soft layer is arranged on the side of the leg support that fits the human body;

[0016] The comfort adjustment mechanism is arranged in the soft layer and is used for adjusting the comfort level to fit the human body.

[0017] Preferably, the leg rest comprises a bottom supporting plate hinged to the seat base, the bottom supporting plate is a drawer structure, and the bottom supporting plate is filled with a hard plastic plate.

[0018] Preferably, the angle adjustment mechanism includes a servo motor, a driving end of the servo motor is provided with a winding column, a traction rope is wound on the winding column, the end of the traction rope is connected to the edge of the bottom support plate away from the hinged end, and a steering wheel for changing the traction direction is also arranged along the traction rope.

[0019] Preferably, the buffer mechanism comprises a spring arranged at the bottom of the servo motor, and a limiting mechanism arranged at a side of the servo motor away from the spring for protecting the spring from excessive stretching.

[0020] Preferably, the limiting mechanism comprises a limiting rod capable of blocking the movement of the servo motor.

[0021] Preferably, the soft layer comprises an airbag layer and a sponge layer arranged on the upper end of the airbag layer, and a cortex layer that fits the human body is arranged on a side of the sponge layer away from the airbag layer.

[0022] Preferably, the comfort adjustment mechanism comprises a plurality of airbags arranged side by side in the airbag layer and a control device capable of controlling the air inlet and outlet of all the airbags.

[0023] Preferably, the control device comprises a control panel arranged on the seat base, an air pump for blowing air into the airbags, and an air outlet arranged on each airbag, each of the air outlets is provided with a solenoid valve, and the control panel can control the operation of the solenoid valve and the air pump;

[0024] The control panel is electrically connected to the angle adjustment mechanism.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] (1) By arranging the angle adjustment mechanism, the supporting effect of the leg rest can be adjusted, and a suitable supporting angle can be selected to improve comfort.

[0027] (2) By arranging a comfort adjustment mechanism, the air volume of all air bags is controlled by the air pump and solenoid valve through the control panel, so as to achieve more comfortable leg support. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the utility model;

[0029] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0030] Figure 3 for Figure 2 Schematic diagram of the structure at A in FIG.

[0031] Figure 4 It is a structural schematic diagram of the soft layer of the utility model;

[0032] Figure 5 It is a structural schematic diagram of the comfort adjustment mechanism of the utility model.

[0033] Description of reference numerals:

[0034] 1-seat base, 2-bottom supporting plate, 3-hard plastic plate, 4-servo motor, 5-winding column, 6-traction rope, 7-steering wheel, 8-spring, 9-limit rod, 13-sponge layer, 14-cortical layer, 15-airbag, 16-control panel, 17-air pump, 18-air outlet, 19-solenoid valve. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Embodiment 1:

[0037] like Figure 1 and Figure 2 As shown, a car seat leg support structure provided by this embodiment includes: a seat base 1 and a leg support arranged on one side of the seat base 1 and hinged to the seat base 1;

[0038] Among them, the leg rest includes a bottom support plate 2 hinged to the seat base 1, the bottom support plate 2 is a drawer structure, and the bottom support plate 2 is filled with a hard plastic plate 3, wherein the bottom support plate 2 is arranged with grille holes, which reduces the weight and reduces the use of materials without affecting the support. The hard plastic 3 can be arranged in a hollow structure, which also helps to reduce the weight and reduce the use of materials, and further reduces the production cost without affecting the support.

[0039] Embodiment 2:

[0040] like Figure 1-Figure 3 As shown, on the basis of Example 1, in order to improve the supporting effect of the leg rest, an angle adjustment mechanism is further arranged to adjust the supporting angle of the leg rest;

[0041] Specifically, the angle adjustment mechanism includes a servo motor 4, a winding post 5 is arranged at the driving end of the servo motor 4, a traction rope 6 is wound on the winding post 5, the end of the traction rope 6 is connected to the edge of the bottom support plate 2 away from the hinge end, and a steering wheel 7 for changing the traction direction is arranged along the traction rope 6. The winding post 5 is driven by the servo motor 4 to rotate and the traction rope 6 is wound on the winding post 5, so that the support plate 2 is pulled up by retracting the traction rope 6 and rotated around the hinge point with the seat base 1, so that it is flipped from one side of the seat base 1 to support the legs. The specific flipping angle is determined by the recovery amount of the traction rope 6, and the recovery amount of the traction rope 6 is determined by controlling the number of turns of the winding post 5 driven by the servo motor 4. In order to maintain the recovery amount of the traction rope 6, the servo motor 4 should have a self-locking ability, and a motor with a self-locking function is selected for use.

[0042] In order to provide a certain rebound space after the leg rest is adjusted, thereby improving the leg support effect and comfort, a buffer mechanism is arranged on the angle adjustment mechanism, which can selectively change the fixed angle positioning of the leg rest with the support angle adjusted to the angle range positioning;

[0043] Specifically, when the servo motor 4 controls the bottom support plate 2 to rotate to a required angle, the buffer structure allows the bottom support plate 2 to be fine-tuned within a small degree range based on the fixed position, thereby providing the legs with support and movement space when the human body moves, further improving the comfort. The buffer mechanism includes a spring 8 arranged at the bottom of the servo motor 4. The elastic force range of the spring 8 is the range of fine-tuning of the buffer structure. During specific use, springs 8 with different elastic forces can be selected for assembly and use according to needs. At the same time, in order to avoid excessive stretching of the spring 8, a limiting mechanism is provided on the side of the servo motor 4 away from the spring 8 to protect the spring 8 from excessive stretching.

[0044] Among them, the limiting mechanism includes a limiting rod 9 that can block the movement of the servo motor 4. The distance between the limiting rod 9 and the servo motor 4 is controlled to be less than the maximum stretching amount of the spring 8. The limiting rod 9 blocks the movement of the servo motor 4, thereby avoiding excessive stretching of the spring 8 and causing it to be scrapped.

[0045] Embodiment 3:

[0046] like Figure 1 , Figure 4 and Figure 5As shown, on the basis of Example 2, in order to further improve the comfort, a soft layer is arranged on the side of the leg support that fits the human body, and the soft layer includes an air bag layer and a sponge layer 13 arranged on the upper end of the air bag layer, and a cortex layer 14 that fits the human body is arranged on the side of the sponge layer 13 away from the air bag layer.

[0047] Furthermore, in order to improve the comfort level, a comfort adjustment mechanism for adjusting the comfort level of the human body is arranged in the soft layer;

[0048] Specifically, the comfort adjustment mechanism includes a plurality of airbags 15 arranged side by side in the airbag layer and a control device capable of controlling the air inlet and outlet of all the airbags 15 , and the comfort adjustment is performed by adjusting the maximum of each airbag 15 .

[0049] The control device includes a control panel 16 arranged on the seat base 1, an air pump 17 for blowing air into the airbag 15, and an air outlet 18 arranged on each airbag 15. The air outlet 18 is provided with a solenoid valve 19. The control panel can control the solenoid valve 19 and the air pump 17 to work. Several comfort levels can be edited first, and the required comfort level can be directly adjusted during use. Then, under the control of the air pump 17 and the solenoid valve 19, the air volume of each airbag 15 can be controlled to achieve the required comfort level.

[0050] The control panel 16 is electrically connected to the angle adjustment mechanism, and the operation of the whole machine is controlled by the control panel 16. The control panel has a built-in editable logic controller. The operation of the control panel through the editable logic controller controls the overall operation. This is a prior art principle and will not be introduced in detail.

[0051] Working principle: The required leg support angle is adjusted by the control panel 16, and the winding column 5 is rotated by the drive of the servo motor 4 to wind the traction rope 6 around the winding column 5, so that the support plate 2 is pulled up by the traction rope 6, and rotated around the hinge point with the seat base 1. The rotation angle is the angle required for the leg support.

[0052] The required comfort level is selected on the control panel 16, and the air volume of each airbag 15 is controlled under the control of the air pump 17 and the solenoid valve 19 to achieve the required comfort level.

[0053] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A car seat leg support structure, characterized in that: include: Seat base (1); A leg support, arranged on one side of the seat base (1) and hinged to the seat base (1); An angle adjustment mechanism, used to adjust the angle of the leg support; The buffer mechanism is arranged on the angle adjustment mechanism, and can selectively change the fixed angle positioning of the leg support after the support angle is adjusted to the angle range positioning; The soft layer is arranged on the side of the leg support that fits the human body; The comfort adjustment mechanism is arranged in the soft layer and is used for adjusting the comfort level to fit the human body.

2. The vehicle seat leg support structure according to claim 1, characterized in that: The leg rest comprises a bottom support plate (2) hinged to the seat base (1); the bottom support plate (2) is a drawer structure; and a hard plastic plate (3) is filled on the bottom support plate (2).

3. The vehicle seat leg support structure according to claim 2, characterized in that: The angle adjustment mechanism comprises a servo motor (4), a winding post (5) is arranged at the driving end of the servo motor (4), a traction rope (6) is wound around the winding post (5), an end of the traction rope (6) is connected to an edge of the bottom support plate (2) away from the hinge end, and a steering wheel (7) for changing the traction direction is also arranged along the traction rope (6).

4. The vehicle seat leg support structure according to claim 3, characterized in that: The buffer mechanism comprises a spring (8) arranged at the bottom of the servo motor (4), and a limiting mechanism arranged on a side of the servo motor (4) away from the spring (8) for protecting the spring (8) from excessive stretching.

5. The vehicle seat leg support structure according to claim 4, characterized in that: The limiting mechanism comprises a limiting rod (9) capable of blocking the movement of the servo motor (4).

6. The vehicle seat leg support structure according to claim 3, characterized in that: The soft layer comprises an air bag layer and a sponge layer (13) arranged on the upper end of the air bag layer, and a cortex layer (14) which fits the human body is arranged on a side of the sponge layer (13) away from the air bag layer.

7. The vehicle seat leg support structure according to claim 1, characterized in that: The comfort adjustment mechanism comprises a plurality of air bags (15) arranged side by side in the air bag layer and a control device capable of controlling the air inlet and outlet of all the air bags (15).

8. The vehicle seat leg support structure according to claim 7, characterized in that: The control device comprises a control panel (16) arranged on the seat base (1), an air pump (17) for blowing air into the airbag (15), and an air outlet (18) arranged on each airbag (15), wherein each air outlet (18) is provided with a solenoid valve (19), and the control panel is capable of controlling the operation of the solenoid valve (19) and the air pump (17); The control panel (16) is electrically connected to the angle adjustment mechanism.

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