Connecting rod type automobile seat pedal transmission structure

Abstract

The utility model discloses a connecting rod type automobile seat pedal transmission structure which comprises a backrest and a pedal, a rotating rod is arranged at the inner end of the pedal, the two ends of the rotating rod are rotationally arranged on the lower portion of the rear side of the backrest, a rotating shaft and a driving assembly for driving the rotating shaft to rotate are arranged on one side of the backrest, and a linkage assembly is arranged between the rotating shaft and the rotating rod. The driving assembly drives the rotating shaft to rotate, and under the linkage effect of the linkage assembly, the rotating rod can be driven to rotate so that the pedal can turn over on the lower portion of the rear side of the backrest. The utility model has the beneficial effects that the driving component drives the rotating shaft to rotate and is matched with the linkage component to drive the rotating rod to rotate, so that the overturning movement of the pedal at the lower part of the rear side of the backrest is realized.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, specifically to a linkage-type automotive seat foot pedal transmission structure. Background Technology

[0002] With the rapid development of the automotive industry, attention has been increasing to the comfort of rear passengers. Therefore, providing footrest support for rear passengers has become an important direction for optimizing the riding experience.

[0003] In existing technology, rear footrests in automobiles are typically mounted on the back of the front seats. When not in use, the footrests can be folded back to the front seatbacks; when in use, they can be unfolded by rotating them outwards. However, this method of installation has several obvious drawbacks. Firstly, the components controlling the footrest rotation are complex and space-consuming. Secondly, when the footrests are unfolded, the gooseneck rod in the connecting structure is exposed. This exposed gooseneck rod not only affects the overall aesthetics of the vehicle interior but also occupies limited interior space, interfering with the legroom of rear passengers. Utility Model Content

[0004] In view of this, the present invention provides a linkage-type automotive seat foot pedal transmission structure, which has the advantages of simple and compact structure.

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

[0006] A linkage-type car seat foot pedal transmission structure includes a backrest and a foot pedal. The key features are: a rotating rod is provided at the inner end of the foot pedal, the two ends of the rotating rod are rotatably disposed at the lower side of the backrest, a rotating shaft and a drive assembly for driving the rotating shaft are provided on one side of the backrest, and a linkage assembly is provided between the rotating shaft and the rotating rod.

[0007] The drive component drives the rotating shaft to rotate, and under the linkage of the linkage component, it can drive the rotating rod to rotate, so as to realize the flipping movement of the foot pedal on the lower side of the backrest.

[0008] Using the above structure, the drive component drives the rotating shaft to rotate, which in turn drives the rotating rod to rotate, thereby realizing the flipping motion of the foot pedal on the lower side of the backrest. In use, when not in use, the foot pedal is folded to the backrest. When in use, the drive component drives the rotating shaft to rotate, which in turn drives the rotating rod to rotate, causing the foot pedal to flip downwards and unfold.

[0009] Preferably, the linkage assembly includes a first link, a second link, and a third link hinged sequentially at their ends. The end of the first link away from the second link is fixedly connected to the rotating shaft, and the end of the third link away from the second link is fixedly connected to the rotating rod. With this structure, rotation of the rotating shaft is transmitted sequentially to the second and third links via the first link, thereby driving the rotating rod to rotate. This linkage assembly has a simple structure and can flexibly and accurately transmit the rotation of the rotating shaft to the rotating rod, ensuring the stability of the foot pedal during the flipping process.

[0010] Preferably, the end of the first connecting rod furthest from the second connecting rod engages with the spline of the rotating shaft. This structure allows the rotation of the rotating shaft to be transmitted efficiently and stably to the first connecting rod, improving connection accuracy and achieving precise control of the rotating rod, thus meeting the user's needs for adjusting the foot pedal position.

[0011] Preferably, the end of the third link furthest from the second link is fixedly welded to the rotating rod. This structure improves the stability of the connection between the third link and the rotating rod.

[0012] Preferably, the lower inner side of the backrest is provided with rotating rod fixing brackets at both ends, with each rotating rod fixing bracket at least partially protruding from the backrest. The two ends of the rotating rod are rotatably supported on the protruding portions of the two rotating rod fixing brackets. This structure ensures the stability of the foot pedal's rotating installation.

[0013] Preferably, a reinforcing bracket is provided on one side of the backrest, and the drive assembly is disposed within the space enclosed by the reinforcing bracket and the rotating rod fixing frame on the same side. The two ends of the rotating shaft are rotatably supported on the reinforcing bracket and the rotating rod fixing frame on the same side, respectively. This structure makes the overall structure more compact.

[0014] Preferably, the foot pedal further includes a mounting base, one end of which is fixed to the rotating rod, and the other end extends radially outward along the rotating rod. With this structure, the mounting base provides a stable foundation for the foot pedal's installation, enhancing the stability of the connection between the foot pedal and the rotating rod.

[0015] Preferably, a limiting component is provided between the rotating rod fixing frame and the mounting base frame to limit the rotation angle of the pedal. This structure prevents the pedal from interfering with or colliding with other components due to excessive rotation.

[0016] Preferably, the mounting base is located on one side of the rotating rod fixing frame, and the limiting component includes a positioning block disposed on the rotating rod fixing frame. A limiting block is provided at one end of the mounting base that is fixed to the rotating rod. When the foot pedal rotates downwards to its limit position, the limiting block abuts against the lower end of the positioning block. With this structure, when the foot pedal flips downwards to its limit position, the limiting block can abut against the lower end of the positioning block, thereby precisely limiting the rotation angle of the foot pedal and allowing it to flip within a reasonable angle range.

[0017] Preferably, the mounting base is located between the two rotating rod fixing brackets. This structure ensures that no parts are exposed when the footrest is unfolded, maintaining the overall aesthetics of the seat.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The linkage-type car seat footrest transmission structure provided by this utility model uses a drive assembly to drive a rotating shaft, which in turn drives a rotating rod to rotate, thereby achieving a flipping motion of the footrest on the lower side of the backrest. In use, when not in use, the footrest is folded back against the backrest. When in use, the drive assembly drives the rotating shaft to rotate, causing the rotating rod to rotate, thus flipping the footrest downwards and unfolding it, providing an adjustable footrest support position for rear passengers and improving the comfort and flexibility of the seat. Furthermore, the rational layout of the rotating rod, shaft, drive assembly, and linkage assembly results in a small overall footprint and a compact structure.

[0020] 2. The use of linkage components has the advantage of simple structure, and the linkage components can flexibly and accurately transmit the rotation of the shaft to the rotating rod, ensuring the stability of the foot pedal during the flipping process.

[0021] 3. The first connecting rod and the rotating shaft are connected by a spline engagement, which allows the rotation of the rotating shaft to be efficiently and stably transmitted to the first connecting rod, and improves the connection accuracy, achieving precise control of the rotating rod and meeting the user's needs for adjusting the foot pedal position. In addition, it also has the advantages of easy installation and disassembly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a linkage-type automotive seat foot pedal transmission structure.

[0023] Figure 2 Another schematic diagram of a linkage-type automotive seat foot pedal transmission structure;

[0024] Figure 3 A partial schematic diagram showing the connection relationship between the rotating shaft 3, the rotating rod 21, and the linkage component 5;

[0025] Figure 4 A cross-sectional view showing the internal structure of a linkage-type automotive seat foot pedal drive mechanism;

[0026] Figure 5 This is a partial schematic diagram showing the structure of the limiting component;

[0027] Figure 6 The left view of the linkage-type car seat foot pedal transmission structure with foot pedal 2 folded down;

[0028] Figure 7 This is a left view of the linkage-type car seat foot pedal transmission structure with foot pedal 2 in the deployed state. Detailed Implementation

[0029] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0030] Combination Figure 1 and Figure 3 As shown, a linkage-type car seat foot pedal transmission structure includes a backrest 1 and a foot pedal 2 rotatably mounted on the back side of the backrest 1. The foot pedal 2 has a rotating rod 21 at its inner end, with both ends of the rotating rod 21 rotatably mounted on the lower rear side of the backrest 1. A rotating shaft 3 and a drive assembly 4 for driving the rotating shaft 3 are provided on the lower side of the backrest 1. In this embodiment, the rotating shaft 3 extends along the width direction of the backrest 1. A linkage assembly 5 is provided between the rotating shaft 3 and the rotating rod 21. The drive assembly 4 drives the rotating shaft 3 to rotate, and under the linkage action of the linkage assembly 5, it can drive the rotating rod 21 to rotate, thereby realizing the flipping movement of the foot pedal 2 on the lower rear side of the backrest 1.

[0031] This linkage-type car seat foot pedal transmission structure drives the rotating shaft 3 to rotate via the drive assembly 4, which in turn drives the rotating rod 21 to rotate via the linkage assembly 5, thereby realizing the flipping movement of the foot pedal 2 on the lower rear side of the backrest 1. In application, such as... Figure 6 As shown, when not in use, footrest 2 is folded behind backrest 1, for reference. Figure 7 In use, the drive assembly 4 drives the rotating shaft 3 to rotate, which in turn drives the rotating rod 21 to rotate, causing the footrest 2 to flip downwards and unfold, thus providing an adjustable footrest support position for rear passengers and improving the comfort and flexibility of seat use. At the same time, the reasonable layout of the rotating rod 21, rotating shaft 3, drive assembly 4 and linkage assembly 5 can make the overall space occupied small, with the advantage of a compact structure.

[0032] Furthermore, such as Figure 3As shown, the linkage assembly 5 includes a first link 51, a second link 52, and a third link 53, which are hinged sequentially at their ends. Specifically, one end of the first link 51 is fixedly sleeved on the rotating shaft 3, and the other end of the first link 51 is hinged to one end of the second link 52. The end of the second link 52 away from the first link 51 is hinged to one end of the third link 53, and the end of the third link 53 away from the second link 52 is fixedly connected to the rotating rod 21. When the rotating shaft 3 rotates, the rotation is transmitted sequentially to the second link 52 and the third link 53 through the first link 51, thereby driving the rotating rod 21 to rotate. This linkage assembly 5 has a simple structure and can flexibly and accurately transmit the rotation of the rotating shaft 3 to the rotating rod 21, ensuring the stability of the foot pedal 2 during the flipping process.

[0033] To ensure that the third link 53 and the rotating rod 21 are fixedly and reliably fixed, in this embodiment, the end of the third link 53 away from the second link 52 is fixedly welded to the rotating rod 21.

[0034] Depend on Figure 3 As can be seen, in this embodiment, the end of the first connecting rod 51 furthest from the second connecting rod 52 is splinedly engaged with the rotating shaft 3. That is, the outer surface of the rotating shaft 3 has longitudinal key teeth, and the end of the first connecting rod 51 furthest from the second connecting rod 52 has a splined hole, which is fitted onto the rotating shaft 3. The splined engagement between the first connecting rod 51 and the rotating shaft 3 allows the rotation of the rotating shaft 3 to be efficiently and stably transmitted to the first connecting rod 51, improving connection accuracy and achieving precise control of the rotating rod 21, thus meeting the user's needs for adjusting the foot pedal position. In addition, it also offers the advantage of convenient installation and disassembly.

[0035] Please refer to Figure 1 and 2 To improve the stability of the footrest 2 during rotation, rotating rod fixing brackets 6 are provided at both ends of the lower inner side of the backrest 1. Each rotating rod fixing bracket 6 protrudes at least partially from the rear side of the backrest 1. The two ends of the rotating rod 21 are rotatably supported on the protruding portions of the two rotating rod fixing brackets 6. Specifically, the front end of the rotating rod fixing bracket 6 is bolted to the front side of the backrest 1, and the rear end is bolted to the bottom of the backrest 1. The rotating rod fixing bracket 6 has an extension 62 protruding from the rear side of the backrest 1, and the two ends of the rotating rod 21 are rotatably connected to the extensions 62 of the two rotating rod fixing brackets 6. This design forms a stable triangular frame between the rotating rod fixing bracket 6 and the backrest 1, enhancing the overall strength and stability of the backrest 1. It also improves the stability of the rotating rod fixing bracket 6 during installation, allowing it to provide stable support for the rotating rod 21 and ensuring its smooth rotation.

[0036] Further, refer to Figure 4A reinforcing bracket 7 is provided on the inner side of one side of the lower part of the backrest 1. The front end of the reinforcing bracket 7 is fixed to the rotating rod fixing frame 6, and the rear end is fixed to the backrest 1. The drive assembly 4 is set in the space enclosed by the reinforcing bracket 7 and the rotating rod fixing frame 6 on the same side, making the overall structure more compact. The two ends of the rotating shaft 3 are respectively rotatably supported on the reinforcing bracket 7 and the rotating rod fixing frame 6 on the same side. The rotating rod fixing frame 6 and the reinforcing bracket 7 provide a stable support structure for the rotating shaft 3, ensuring the stability of the rotating shaft 3 during rotation, thereby improving the efficiency and accuracy of power transmission, making the flipping movement of the foot pedal 2 more stable and reliable, and improving the user experience.

[0037] like Figure 1 As shown, the foot pedal 2 also includes a mounting base 22, which is a rod-shaped structure. One end of the mounting base 22 is fixedly welded to the rotating rod 21, and the other end extends radially outward along the rotating rod 21. In this embodiment, there are at least two sets of mounting bases 22, located between two rotating rod fixing frames 6. The mounting base 22 provides a stable foundation for the installation of the foot pedal, enhances the stability of the connection between the foot pedal and the rotating rod 21, and provides the user with more stable foot pedal support.

[0038] In this embodiment, a limiting component is provided between the rotating rod fixing bracket 6 and the mounting base 22. This limiting component is used to limit the rotation angle of the foot pedal 2 to prevent the foot pedal 2 from interfering with or colliding with other components due to excessive rotation, thereby improving the safety and stability of the entire car seat foot pedal transmission structure.

[0039] Combined Figure 1 , Figure 2 and Figure 4 As shown, the two sets of mounting bases 22 are located inside the two rotating rod fixing frames 6 respectively. Each mounting base 22 and the corresponding rotating rod fixing frame 6 are provided with a limiting component. Therefore, the following explanation will take the limiting component on one side as an example.

[0040] For details, please refer to Figure 5 The limiting component includes a positioning block 61 mounted on the rotating rod fixing frame 6. The positioning block 61 protrudes from the rotating rod fixing frame 6 and extends towards the mounting base 22. The mounting base 22, which is fixed to the rotating rod 21, has a radially outward protruding limiting block 221 at one end. When the foot pedal 2 is flipped downward to its limit position, the limiting block 221 abuts against the lower end of the positioning block 61, thereby precisely limiting the rotation angle of the foot pedal 2, allowing the foot pedal 2 to flip within a reasonable angle range.

[0041] 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 linkage-type automotive seat foot pedal transmission structure, comprising a backrest (1) and a foot pedal (2), characterized in that: The foot pedal (2) is provided with a rotating rod (21) at its inner end. The two ends of the rotating rod (21) are rotatably arranged on the lower rear side of the backrest (1). The backrest (1) is provided with a rotating shaft (3) and a driving assembly (4) for driving the rotating shaft (3) to rotate. A linkage assembly (5) is provided between the rotating shaft (3) and the rotating rod (21). The drive assembly (4) drives the rotating shaft (3) to rotate. Under the linkage of the linkage assembly (5), it can drive the rotating rod (21) to rotate, so as to realize the foot pedal (2) flipping motion on the lower part of the backrest (1). The linkage assembly (5) includes a first link (51), a second link (52) and a third link (53) that are hinged at their ends in sequence. The end of the first link (51) away from the second link (52) is fixedly connected to the rotating shaft (3), and the end of the third link (53) away from the second link (52) is fixedly connected to the rotating rod (21).

2. The linkage-type automotive seat foot pedal transmission structure according to claim 1, characterized in that: The end of the first link (51) away from the second link (52) is splined into the shaft (3).

3. The linkage-type automotive seat foot pedal transmission structure according to claim 1, characterized in that: The end of the third link (53) away from the second link (52) is fixedly welded to the rotating rod (21).

4. The linkage-type automotive seat foot pedal transmission structure according to claim 1, characterized in that: The lower inner side of the backrest (1) is provided with a rotating rod fixing bracket (6) at both ends. The rotating rod fixing bracket (6) protrudes at least partially from the backrest (1). The two ends of the rotating rod (21) are respectively rotatably supported on the parts of the two rotating rod fixing brackets (6) that protrude from the backrest (1).

5. The linkage-type automotive seat foot pedal transmission structure according to claim 4, characterized in that: The backrest (1) is provided with a reinforcing bracket (7) on one side. The drive assembly (4) is located in the space enclosed by the reinforcing bracket (7) and the rotating rod fixing frame (6) on the same side. The two ends of the rotating shaft (3) are respectively rotatably supported on the reinforcing bracket (7) and the rotating rod fixing frame (6) on the same side.

6. The linkage-type automotive seat foot pedal transmission structure according to claim 4, characterized in that: The foot pedal (2) also includes a mounting base (22), one end of which is fixed on the rotating rod (21), and the other end extends radially outward along the rotating rod (21).

7. The linkage-type automotive seat foot pedal transmission structure according to claim 6, characterized in that: A limiting component is provided between the rotating rod fixing frame (6) and the mounting base frame (22), which is used to limit the rotation angle of the foot pedal (2).

8. The linkage-type automotive seat foot pedal transmission structure according to claim 7, characterized in that: The mounting base (22) is located on one side of the rotating rod fixing frame (6). The limiting component includes a positioning block (61) set on the rotating rod fixing frame (6). The mounting base (22) is fixed to the rotating rod (21) at one end and a limiting block (221) is provided. When the foot pedal (2) rotates downward to the limit position, the limiting block (221) abuts against the lower end of the positioning block (61).

9. The linkage-type automotive seat foot pedal transmission structure according to claim 6, characterized in that: The mounting base (22) is located between the two rotating rod fixing frames (6).

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