Foot rest angle adjusting device and method for automobile man-machine verification

Abstract

The invention discloses a footrest angle adjusting device and method for automobile man-machine verification, and the angle adjusting device comprises a support frame, a pedal bearing plate for fixing a footrest sample piece, a rotary connection mechanism, and a drive adjusting mechanism. The rotary connecting mechanism is fixed between the pedal bearing plate and the supporting frame so that the pedal bearing plate can be rotatably connected to the supporting frame, a rotating axis is limited, the driving adjusting mechanism comprises a power driving part and a transmission assembly, the power driving part is fixed to the pedal bearing plate, and the output end of the power driving part is connected with the transmission assembly; the transmission assembly is further connected with the rotary connecting mechanism, and power of the power driving piece is transmitted to the rotary connecting mechanism through the transmission assembly so as to drive the pedal bearing plate to rotate around a rotation axis. Through cooperation of the rotary connecting mechanism and the driving adjusting mechanism, stable rotation of the pedal bearing plate is achieved, the overall structure is compact, the occupied space is small, the device can adapt to different types of automobile man-machine verification models, the verification efficiency is improved, and the verification cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of automotive human-machine interface technology, specifically to a footrest angle adjustment device and method for automotive human-machine interface verification. Background Technology

[0002] In the process of automotive interior design and ergonomic verification, the footrest, as an important component of the automotive interior, directly affects the driver's leg posture and fatigue during long-term driving due to its installation angle and position. Therefore, the position and angle of the footrest have an important impact on driving comfort. In the process of ergonomic verification, it is necessary to fully verify the different angles and positions of the footrest.

[0003] In existing technologies, verifying the angle position of a footrest during automotive human-machine interface verification typically requires creating multiple footrest models with different angles. Different angles are simulated by changing these models. However, existing footrest verification models suffer from the following problems during use:

[0004] On the one hand, the production of multiple models of resting boards at different angles is costly in terms of processing and manufacturing, which increases R&D investment;

[0005] On the other hand, the model replacement process is cumbersome and requires a lot of time and manpower, resulting in low verification efficiency and an inability to quickly achieve multi-angle comparative verification. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an angle adjustment device that is simple in structure, easy to adjust, low in cost, and can quickly switch and fix different angle positions of the footrest on a single model, thereby improving the efficiency of human-machine verification for automobiles and reducing verification costs, in order to address the shortcomings of the existing technology.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] On one hand, the present invention provides a footrest angle adjustment device for automotive human-machine verification. The angle adjustment device includes a support frame, a pedal support plate for fixing a footrest sample, a rotary connection mechanism, and a drive adjustment mechanism. The rotary connection mechanism is fixed between the pedal support plate and the support frame to rotatably connect the pedal support plate to the support frame and defines a rotation axis. The drive adjustment mechanism includes a power drive component and a transmission assembly. The power drive component is fixed to the pedal support plate, and the output end of the power drive component is connected to the transmission assembly. The transmission assembly is also connected to the rotary connection mechanism. The power of the power drive component is transmitted to the rotary connection mechanism via the transmission assembly to drive the pedal support plate to rotate around a rotation axis.

[0009] Furthermore, the rotating connection mechanism includes a connecting base plate and two sets of first connecting seats. The connecting base plate is fixed to the bottom surface of the pedal support plate, and the two sets of first connecting seats are symmetrically fixed to both ends of the connecting base plate. One end of the support frame is fixed with two sets of second connecting seats that cooperate with the two sets of first connecting seats. A hinge seat is also fixed to one side edge of the support frame. The hinge seat is located on one side of the second connecting seats. The two sets of first connecting seats of the pedal support plate are rotatably connected to the second connecting seats of the support frame through a transmission assembly.

[0010] Furthermore, the power drive component is a stepper motor, which is fixed on the support frame, and the motor output end of the stepper motor is connected to the transmission assembly.

[0011] Furthermore, the transmission mechanism includes a first worm, a transmission gear, a worm wheel, and a second worm. The second worm passes through two sets of first connecting seats at one end of the pedal bearing plate and is hinged to two sets of second connecting seats of the support frame. The output end of the power drive component is connected to the first worm. The transmission gear is sleeved on the second worm and meshes with the first worm. The worm wheel is fixed to the outside of the hinge seat of the support frame. The worm wheel is also fixed to one side of one set of first connecting seats and is connected to one end of the second worm.

[0012] Furthermore, both sets of second connecting seats are provided with hinge holes, and both sets of first connecting seats are provided with assembly holes. The two ends of the second worm pass through the hinge holes of the two sets of second connecting seats and the assembly holes of the two sets of first connecting seats, respectively. The hinge seat is provided with a through hole, and one end of the second worm also passes through the through hole of the hinge seat and is connected to the worm gear on the outside of the hinge seat for transmission.

[0013] Furthermore, the angle adjustment device includes an angle indicating unit, which includes an arc-shaped component and an indicating component. The arc-shaped component is fixed to the bottom surface of the pedal support plate, and the indicating component is fixed to the support frame. An angle scale mark is provided on the arc-shaped component along its arc trajectory, and the indicating component of the support frame points to the angle scale mark.

[0014] Furthermore, the angle adjustment device also includes a position sensing protection unit, which includes at least three sensors and a sensing trigger plate fixed to the support frame. The three sensors are fixed to the arc-shaped component on the bottom surface of the pedal support plate from top to bottom, and the three sensors are set sequentially to correspond to the upper limit position, middle position and lower limit position of the pedal support plate movement.

[0015] On the other hand, the present invention also provides a method for verifying the angle of a car footrest using the above-mentioned angle adjustment device, the method comprising the following steps:

[0016] Step S1: Install the footrest sample onto the pedal support plate of the angle adjustment device;

[0017] Step S2: Activate the power drive component of the drive adjustment mechanism, so that its output power is transmitted to the rotary connection mechanism through the transmission component, thereby driving the pedal bearing plate with the footrest sample installed to rotate around the rotation axis to the first target angle;

[0018] Step S3: Perform ergonomic verification of the footrest at the first target angle;

[0019] Step S4: Adjust the pedal support plate to the next target angle again through the drive adjustment mechanism, and repeat the verification process of step S3 until all preset target angles are verified.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The angle adjustment device of this invention includes a support frame, a pedal support plate for fixing a footrest sample, a rotary connection mechanism, and a drive adjustment mechanism. The rotary connection mechanism is fixed between the pedal support plate and the support frame to rotatably connect the pedal support plate to the support frame and defines a rotation axis. The drive adjustment mechanism includes a power drive component and a transmission assembly. The power drive component is fixed to the pedal support plate, and its output end is connected to the transmission assembly. The transmission assembly is also connected to the rotary connection mechanism. The power of the power drive component is transmitted to the rotary connection mechanism via the transmission assembly to drive the pedal support plate to rotate around a rotation axis. This invention achieves stable rotation of the pedal support plate through the cooperation of the rotary connection mechanism and the drive adjustment mechanism. The overall structure is compact, occupies little space, and can be adapted to different types of automotive human-machine verification models, improving verification efficiency and reducing verification costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the angle adjustment device of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the angle adjustment device of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the angle adjustment device of the present invention. Figure 3 ;

[0025] Figure 4 For the present invention Figure 3 Enlarged detail of part A in the image;

[0026] Figure 5 This is a schematic diagram showing the relationship between the pedal support plate, the rotary connection mechanism, and the drive adjustment mechanism of the present invention.

[0027] Figure 6 This is a schematic diagram illustrating the relationship between the support frame and the drive adjustment mechanism of the present invention. Figure 1 ;

[0028] Figure 7 This is a schematic diagram illustrating the relationship between the support frame and the drive adjustment mechanism of the present invention. Figure 2 ;

[0029] Figure 8 This is an electrical diagram showing the connection between the PLC controller, sensors, and stepper motor of the present invention.

[0030] In the figure, there are: support frame 1, second connecting seat 11, hinge seat 12, pedal bearing plate 2, rotary connecting mechanism 3, connecting base plate 31, first connecting seat 32, drive adjustment mechanism 4, power drive component 41, transmission assembly 42, first worm 421, transmission gear 422, worm wheel 423, second worm 424, angle indicating unit 5, arc-shaped component 51, indicating component 52, angle scale mark 53, position sensing protection unit 6, sensor 61, and sensing trigger piece 62. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figures 1-7As shown, Embodiment 1 of the present invention provides a footrest angle adjustment device for automotive human-machine verification. The angle adjustment device includes a support frame 1, a pedal support plate 2 for fixing a footrest sample, a rotary connection mechanism 3, and a drive adjustment mechanism 4. In this embodiment, the pedal support plate 2 is made of stamped steel plate, and its top surface is used to install the automotive footrest sample. The rotary connection mechanism 3 is fixed between the pedal support plate 2 and the support frame 1 to rotatably connect the pedal support plate 2 to the support frame 1 and define a rotation axis. The drive adjustment mechanism 4 includes a power drive component 41 and a transmission assembly 42. The power drive component 41 is fixed to the support frame 1, and the output end of the power drive component 41 is connected to the transmission assembly 42. The transmission assembly 42 is also connected to the rotary connection mechanism 3. The power of the power drive component 41 is transmitted to the rotary connection mechanism 3 through the transmission assembly 42 to drive the pedal support plate 2 to rotate around a rotation axis. This invention achieves stable rotation of the pedal support plate 2 by cooperating with the rotary connection mechanism 3 and the drive adjustment mechanism 4. The overall structure is compact and occupies little space. It can be adapted to different types of automotive human-machine verification models. The angle position of the footrest can be quickly adjusted by driving the power drive component 41 without changing the model. Verification of multiple angle positions can be completed on one model, which greatly improves verification efficiency and reduces verification cost.

[0033] In this embodiment, the support frame 1 is made of aluminum alloy profile and is used to provide a support base for the entire device. Its bottom can be fixed to the human-machine verification platform (not shown) by bolts to ensure the overall installation stability of the angle adjustment device.

[0034] The rotating connection mechanism 3 includes a connecting base plate 31 and two sets of first connecting seats 32. The connecting base plate 31 is fixed to the bottom surface of the pedal support plate 2. The two sets of first connecting seats 32 are symmetrically fixed to both ends of the connecting base plate 31. One end of the support frame 1 is fixed with two sets of second connecting seats 11 that cooperate with the two sets of first connecting seats 32. A hinge seat 12 is also fixed to one side edge of the support frame 1. The hinge seat 12 is located on one side of the second connecting seats 11. The two sets of first connecting seats 32 of the pedal support plate 2 are rotatably connected to the second connecting seats 11 of the support frame 1 through a transmission assembly 42. In this embodiment, the connecting base plate 31 is fixedly connected to the bottom surface of the pedal support plate 2 by bolts.

[0035] The power drive component 41 of this invention is a stepper motor, which is fixed to the support frame 1. The motor output end of the stepper motor is connected to the transmission component 42. The power drive component 41 of this invention uses a stepper motor, which features high adjustment accuracy and fast response speed, allowing for precise control of the rotation angle. The stepper motor is fixed to the bottom surface of the support frame 1 via a motor mounting bracket, which is a sheet metal part connected to the pedal support plate 2 by bolts. A rubber buffer pad is placed between the motor mounting bracket and the support frame 1. The buffer pad can be made of rubber or polyurethane material to absorb the vibration generated by the power drive component 41 during operation, improving the stability of the device operation and reducing the impact of vibration on the adjustment accuracy. By controlling the forward and reverse rotation of the power drive component 41, this invention can precisely control the tilt angle of the pedal support plate 2.

[0036] The transmission mechanism of the present invention includes a first worm 421, a transmission gear 422, a worm wheel 423, and a second worm 424. The second worm 424 passes through two sets of first connecting seats 32 at one end of the pedal bearing plate 2 and is hinged to two sets of second connecting seats 11 of the support frame 1. The output end of the power drive component 41 is connected to the first worm 421. The transmission gear 422 is sleeved on the second worm 424 and meshes with the first worm 421 for transmission. The worm wheel 423 is fixed to the hinge seat 12 of the support frame 1, fixed to one side of one set of first connecting seats 32, and connected to one end of the second worm 424 for transmission.

[0037] When the angle position of the footrest needs to be verified, the stepper motor is started. The output shaft of the stepper motor drives the first worm 421 to rotate. The first worm 421 drives the transmission gear 422 meshing with it to rotate. Since the transmission gear 422 is fixedly sleeved on the second worm 424, it drives the second worm 424 to rotate. The rotation of the second worm 424 is reduced in speed through the worm wheel 423 meshing with it (i.e., worm gear pair). The worm wheel 423 is fixed to the outside of one of the second connecting seats 11 and the hinge seat 12 of the support frame 1. It cannot rotate itself. According to the motion principle of the worm gear pair, when the worm (i.e., the second worm 424) rotates actively, since the worm wheel 423 is fixed, the entire worm gear pair will generate a reaction force. This reaction force manifests as a constraint on the tendency of the worm (i.e., the second worm 424) to rotate around its axis, but is transformed into a force that drives the component connected to the worm (i.e., the footrest bearing plate 2) to rotate around the worm axis. That is, the second worm 424 generates a rotational input under the drive of the motor. Since the worm wheel 423 meshing with it is fixed, the rotational motion is converted into a "torque" in the axial direction of the second worm 424. This torque drives the second worm 424 to rotate and swing around the axis (i.e., the hinge axis) of the second worm 424 through the pedal bearing plate 2 of the first connecting seat 32.

[0038] By controlling the forward or reverse rotation of the stepper motor, the pedal support plate 2 can be controlled to rotate upward or downward, thereby changing the tilt angle of the footrest plate mounted on it. After adjusting to the desired angle, the stepper motor is turned off. Because the worm gear pair has a reverse self-locking characteristic, meaning the worm (second worm 424) cannot drive the worm wheel (worm gear 423), and the worm gear 423 is fixed, the entire transmission chain is locked, and the angle of the pedal support plate 2 is firmly maintained, preventing easy change under external force, thus ensuring the stability of the verification state. The transmission mechanism of this invention adopts a worm gear reduction transmission structure. When the power drive component 41 is started, it drives the first worm 421 to rotate. The first worm 421 drives the transmission gear 422 to rotate, and the transmission gear 422 drives the second worm 424 to rotate. Simultaneously, the second worm 424 and the worm gear 423 constitute another stage of worm gear transmission, achieving two-stage reduction. This design provides a large reduction ratio and self-locking capability, and effectively transmits the torque of the power drive component 41 to the second worm gear 424. It has a compact structure, not only with good deceleration effect, but also with self-locking function, which can ensure that the pedal bearing plate 2 is stably fixed after being adjusted to the target angle, and avoid accidental rotation. At the same time, the worm gear drive has high transmission accuracy, which can realize precise angle adjustment and meet the accuracy requirements of human-machine verification.

[0039] In specific implementation, both sets of second connecting seats 11 of the present invention are provided with hinge holes, and both sets of first connecting seats 32 are provided with assembly holes. The two ends of the second worm 424 pass through the assembly holes of the two sets of first connecting seats 32 and the hinge holes of the two sets of second connecting seats 11, respectively. A through hole is provided in the hinge seat 12, and one end of the second worm 424 also passes through the through hole of the hinge seat 12 and is connected to the worm wheel 423 on the outside of the hinge seat 12 for transmission. In this embodiment, the second connecting seat 11 is fixed to one end of the support frame 1. The second connecting seat 11 is an ear plate, and a hinge hole coaxial with the second worm 424 is opened on the ear plate. The first connecting seat 32 adopts an inverted U-shaped steel plate structure. An assembly hole is opened at the bottom of the inverted U-shaped steel plate structure. The diameter of the assembly hole matches the outer diameter of the second worm 424 for installing and fixing the second worm 424. The two sets of first connecting seats 32 and two sets of second connecting seats 11 provided in this invention cooperate with the transmission assembly 42 to realize a rotatable connection between the pedal support plate 2 and the support frame 1. In this embodiment, the two ends of a second worm gear 424 are rotatably supported on the two sets of first connecting seats 32 and two sets of second connecting seats 11, so that the second worm gear 424 can rotate around its own axis. Two sets of first connecting seats 32 are provided on the bottom surface of the pedal support plate 2. The second worm gear 424 passes through the mounting holes of the two sets of first connecting seats 32, the hinge holes of the two sets of second connecting seats 11, and the through hole of the hinge seat 12, and is then fixed to the worm wheel 423. In this way, the rotation of the second worm gear 424 will directly drive the pedal support plate 2 to rotate around the axis of the second worm gear 424.

[0040] In other embodiments, a bearing (deep groove ball bearing) may also be embedded in the hinge hole of the second connecting seat 11 to reduce friction during rotation.

[0041] The angle adjustment device of the present invention includes an angle indicating unit 5, which includes an arc-shaped component 51 and an indicating component 52. The arc-shaped component 51 is fixed to the bottom surface of the pedal support plate 2, and the indicating component 52 is fixed to the support frame 1. An angle scale mark 53 is provided on the arc-shaped component 51 along its arc trajectory. The indicating component 52 of the support frame 1 points to the angle scale mark 53 to indicate the current angle of the pedal support plate 2 relative to the support frame 1.

[0042] The arc-shaped component 51 of the present invention is an arc-shaped plate fixed on the pedal support plate 2, and the indicator component 52 is a scale pointing plate fixed on the top surface of the support frame 1; the angle adjustment device of the present invention is provided with an angle indicator unit 5, which can display the current angle in real time and accurately, providing accurate data support for human-machine verification, evaluation and recording.

[0043] The angle adjustment device of the present invention also includes a PLC controller, the model of which is Siemens S7-200SMART PLC, and the PLC controller is fixedly installed on the human-machine verification model.

[0044] The angle adjustment device also includes a position sensing protection unit 6. The position sensing protection unit 6 includes at least three sensors 61 fixed to the support frame 1 and a sensing trigger plate 62 fixed to the support frame 1. The three sensors 61 are arranged sequentially to correspond to the upper limit position, middle position and lower limit position of the pedal support plate 2. During the movement of the sensor 61 at the upper limit position or the lower limit position on the pedal support plate 2, it will pass through the sensing trigger plate 62. The sensor 61 and the sensing trigger plate 62 will sense each other. At this time, the sensor 61 at the upper limit position or the lower limit position sends a signal to the controller. The controller can control the power drive component 41 to stop working, thereby realizing the automatic limit of the upper and lower limit positions and preventing the device from being damaged by excessive rotation.

[0045] In this embodiment, three sensors 61 are arranged at intervals on the outer side of the arc-shaped component 51 along its extension direction.

[0046] like Figure 8As shown, the input interface of the PLC controller of the present invention is electrically connected to the start switch SB1, stop switch SB2, motor manual control switch SB6, lower limit sensor 61SQ1, middle sensor 61SQ2, and upper limit sensor 61SQ3, respectively. The input interface of the PLC controller is also electrically connected to contactors KM1, KM2, and KM3, respectively. Contactors KM1 and KM2 are electrically connected to the stepper motor. The three sensors 61 provided in this invention are electrically connected to the input interface of the PLC controller, and the output port of the PLC controller is electrically connected to the stepper motor through contactors KM1 and KM2. The PLC controller can realize the operation of the sensors 61 and the stepper motor, thereby improving the automation level of the footrest angle adjustment.

[0047] On the other hand, the present invention also provides a method for verifying the angle of a car footrest using the above-mentioned angle adjustment device, the method comprising the following steps:

[0048] Step S1: Install the footrest sample onto the pedal support plate 2 of the angle adjustment device;

[0049] Step S2: Start the power drive component 41 of the drive adjustment mechanism 4, so that its output power is transmitted to the rotary connection mechanism 3 via the transmission component 42, thereby driving the pedal bearing plate 2 with the footrest sample installed to rotate around the rotation axis to the first target angle.

[0050] Step S3: Perform ergonomic verification of the footrest at the first target angle;

[0051] Step S4: Adjust the pedal support plate 2 to the next target angle again through the drive adjustment mechanism 4, and repeat the verification process of step S3 until all preset target angles are verified.

[0052] The method for verifying the angle of a footrest provided by this invention includes: installing a footrest sample; adjusting the pedal support plate 2 to the target angle through the drive adjustment mechanism 4; performing human-machine verification; repeating the adjustment and verification until all angle verifications are completed, so that the footrest can be quickly and accurately adjusted to the different angles required for verification.

[0053] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A footrest angle adjustment device for automotive human-machine interface verification, characterized in that: The angle adjustment device includes a support frame, a footrest plate for fixing the footrest sample, a rotary connection mechanism, and a drive adjustment mechanism. The rotary connection mechanism is fixed between the footrest plate and the support frame to rotatably connect the footrest plate to the support frame and defines a rotation axis. The drive adjustment mechanism includes a power drive component and a transmission assembly. The power drive component is fixed to the footrest plate, and the output end of the power drive component is connected to the transmission assembly. The transmission assembly is also connected to the rotary connection mechanism. The power of the power drive component is transmitted to the rotary connection mechanism via the transmission assembly to drive the footrest plate to rotate around a rotation axis.

2. The footrest angle adjustment device for automotive human-machine verification according to claim 1, characterized in that: The rotating connection mechanism includes a connecting base plate and two sets of first connecting seats. The connecting base plate is fixed to the bottom surface of the pedal support plate. The two sets of first connecting seats are symmetrically fixed to both ends of the connecting base plate. One end of the support frame is fixed with two sets of second connecting seats that cooperate with the two sets of first connecting seats. A hinge seat is also fixed to one side edge of the support frame. The hinge seat is located on one side of the second connecting seats. The two sets of first connecting seats of the pedal support plate are rotatably connected to the second connecting seats of the support frame through a transmission assembly.

3. The footrest angle adjustment device for automotive human-machine verification according to claim 1, characterized in that: The power drive component is a stepper motor, which is fixed on a support frame, and the motor output end of the stepper motor is connected to the transmission assembly.

4. The footrest angle adjustment device for automotive human-machine verification according to claim 1, characterized in that: The transmission mechanism includes a first worm, a transmission gear, a worm wheel, and a second worm. The second worm passes through two sets of first connecting seats at one end of the pedal bearing plate and is hinged to two sets of second connecting seats of the support frame. The output end of the power drive component is connected to the first worm. The transmission gear is sleeved on the second worm and meshes with the first worm. The worm wheel is fixed to the outside of the hinge seat of the support frame. The worm wheel is also fixed to one side of one set of first connecting seats and is connected to one end of the second worm.

5. The footrest angle adjustment device for automotive human-machine verification according to claim 2, characterized in that: Both sets of second connecting seats are provided with hinge holes, and both sets of first connecting seats are provided with assembly holes. The two ends of the second worm pass through the hinge holes of the two sets of second connecting seats and the assembly holes of the two sets of first connecting seats, respectively. The hinge seat is provided with a through hole, and one end of the second worm also passes through the through hole of the hinge seat and is connected to the worm gear on the outside of the hinge seat for transmission.

6. The footrest angle adjustment device for automotive human-machine verification according to claim 5, characterized in that: The angle adjustment device includes an angle indicating unit, which includes an arc-shaped component and an indicating component. The arc-shaped component is fixed to the bottom surface of the pedal support plate, and the indicating component is fixed to the support frame. An angle scale mark is provided on the arc-shaped component along its arc trajectory, and the indicating component of the support frame points to the angle scale mark.

7. The footrest angle adjustment device for automotive human-machine verification according to claim 6, characterized in that: The angle adjustment device also includes a position sensing protection unit, which includes at least three sensors and a sensing trigger plate fixed to the support frame. The three sensors are fixed to the arc-shaped component on the bottom surface of the pedal support plate from top to bottom. The three sensors are set sequentially to correspond to the upper limit position, middle position and lower limit position of the pedal support plate movement.

8. A method for verifying the angle of a car footrest using the angle adjustment device as described in any one of claims 1 to 7, characterized in that: The method includes the following steps: Step S1: Install the footrest sample onto the pedal support plate of the angle adjustment device; Step S2: Activate the power drive component of the drive adjustment mechanism, so that its output power is transmitted to the rotary connection mechanism through the transmission component, thereby driving the pedal bearing plate with the footrest sample installed to rotate around the rotation axis to the first target angle; Step S3: Perform ergonomic verification of the footrest at the first target angle; Step S4: Adjust the pedal support plate to the next target angle again through the drive adjustment mechanism, and repeat the verification process of step S3 until all preset target angles are verified.

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