Pedal displacement and force relation measuring device

Abstract

The utility model discloses a pedal displacement and force relation measuring device which comprises a measuring frame and a pedal body placed in the measuring frame and used for being measured. A fixing frame is fixed to the right side of the top of the measuring frame, an electric push rod is installed on the inner wall of the fixing frame, the output end of the electric push rod is installed at the top of a pressure sensor, and the bottom of the pressure sensor is embedded into the protruding position of one side of the pedal body; a servo motor is fixedly installed in the measuring frame, the output end of the servo motor drives a limiting mechanism, and the limiting mechanism can adapt to pedal bodies of different sizes. According to the pedal displacement and force relation measuring device, the limiting mechanism is arranged, rotation of the rotating gear can be achieved through the limiting mechanism, the jacking rod can be driven to slide in the measuring frame, then the outer end of the jacking rod can abut against the outer wall of the pedal fixing piece, and pedal bodies of different sizes can be limited.

Description

Technical Field

[0001] This utility model relates to the field of pedal-related technology, specifically a device for measuring the relationship between pedal displacement and force. Background Technology

[0002] The pedal is one of the most important components in the vehicle control system. The measurement and evaluation of its pedal force and pedal travel are crucial for driving safety and driving experience. When measuring the relationship between pedal displacement and force, a measuring device can be used for auxiliary processing.

[0003] In automotive pedal measurement, a separate pedal force gauge, a separate travel sensor, a data acquisition device, and related accessories are typically used, which is cumbersome. To address this issue, a pedal force and travel measuring device disclosed in existing technology (Chinese patent application number CN202322894928.6, application date 2023-10-26) can be referenced. This measuring device integrates a cable displacement sensor and a pressure sensor, allowing the operator to conveniently and quickly measure both pedal force and travel simultaneously by holding the device. It does not damage the car's interior and displays real-time data on a screen, providing a clear view of changes in pedal force and travel. Especially in scenarios involving batch measurements of multiple cars, the device is easy to operate, highly efficient to install, and significantly improves measurement efficiency.

[0004] Although the above-mentioned device can greatly improve measurement efficiency, it still has some shortcomings in actual work. When changing and measuring different car pedals, the process is relatively cumbersome due to the different models of car pedals, which is not conducive to quick operation.

[0005] Therefore, we proposed a device for measuring the relationship between pedal displacement and force, which can effectively solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a device for measuring the relationship between pedal displacement and force, in order to solve the problem mentioned in the background art that the measuring devices currently on the market are cumbersome when replacing different car pedals due to the different models of car pedals, which is not conducive to quick operation.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a device for measuring the relationship between pedal displacement and force, comprising a measuring frame and a foot pedal body for measurement placed inside the measuring frame; a fixing frame is fixed to the top right side of the measuring frame, an electric push rod is installed on the inner wall of the fixing frame, the output end of the electric push rod is installed at the top of a pressure sensor, the bottom of the pressure sensor is embedded in a protruding part on one side of the foot pedal body, a servo motor is fixedly installed inside the measuring frame, the output end of the servo motor drives a limiting mechanism, and the limiting mechanism can be adapted to foot pedal bodies of different sizes.

[0008] As a preferred technical solution of this application, the foot pedal body includes a horizontally arranged foot pedal fixing member, and the left end of the foot pedal fixing member is rotatably connected to one side of the foot pedal block through a rotating shaft, and the rotating shaft has mating holes on both the front and rear sides.

[0009] As a preferred technical solution of this application, the docking hole is square, one side of the foot pedal block is fixedly connected to the side of the rotating shaft, and a display panel is installed on the surface of the measuring frame.

[0010] As a preferred technical solution of this application, the limiting mechanism includes the center position of a rotating gear fixed at the output end of the servo motor. The outer end of the rotating gear is meshed with the inner side of two sets of connecting block teeth. A push rod is fixed at the inner side of the connecting block. An embedding rod is also rotatably provided at the inner side of the left end of the connecting block. A fixing square rod is fixed at one end of the embedding rod that extends into the inner side of the measuring frame.

[0011] As a preferred technical solution of this application, the push rods are symmetrically distributed in two sets about the transverse center line of the measuring frame, and the outer side of the push rods extends into the interior of the measuring frame, and the outer end of the push rods abuts against one side of the foot pedal fixing member.

[0012] As a preferred technical solution of this application, a rotating disk is fixed on the outer side of the embedded rod, and the outer end of the rotating disk is connected to the inner wall of the measuring frame through a torsion spring. An indicator pin is also fixed on the outer wall of the measuring frame, and the outer end of the indicator pin corresponds to the scale position of the rotating disk.

[0013] As a preferred technical solution of this application, the outer end of the fixed square rod is embedded in the inner wall of the docking hole, and the moving distance of the rotating disk is greater than the distance by which the end of the fixed square rod is embedded in the docking hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This pedal displacement and force relationship measuring device is equipped with a limiting mechanism. The limiting mechanism allows the rotation of the rotating gear to drive the push rod to slide inside the measuring frame, thereby allowing the outer end of the push rod to abut against the outer wall of the foot pedal fixing component. This can limit the movement of foot pedal bodies of different sizes. The specific details are as follows:

[0015] 1. A rotating gear is provided. The rotation of the rotating gear can move the meshing connecting block to the front and rear sides of the measuring frame. This allows the connecting block to drive the push rod to slide inside the measuring frame, thereby limiting the outer side of the foot pedal body. Furthermore, a fixed square rod is provided. The movement of the connecting block allows the outer end of the fixed square rod to be embedded into the mating hole, facilitating the subsequent measurement of the pedal displacement distance.

[0016] 2. A foot pedal fixing component is provided. When the foot pedal fixing component is stepped on, it rotates on one side of the foot pedal block via a pivot. The pivot drives the fixed square rod and the rotating disk to rotate, thereby allowing the rotating disk to rotate at an angle. The scale of the rotating disk can be aligned with the side of the indicator pin, making it easy to understand the displacement of the foot pedal fixing component. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a side view of the rotating gear structure of this utility model;

[0021] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;

[0022] Figure 6 This is a schematic diagram of the main structure of the foot pedal body of this utility model.

[0023] In the diagram: 1. Measuring frame; 101. Display panel; 2. Foot pedal body; 201. Foot pedal fixing piece; 202. Docking hole; 203. Foot pedal block; 3. Fixing frame; 4. Electric push rod; 5. Pressure sensor; 6. Servo motor; 7. Rotating gear; 8. Connecting block; 9. Push rod; 10. Embedding rod; 11. Rotating disk; 12. Torsion spring; 13. Fixing square rod; 14. Indicating pin. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 The present invention provides the following technical solution: a device for measuring the relationship between pedal displacement and force.

[0026] Example 1: To address the issue that current measuring devices on the market are cumbersome when replacing different car pedals due to variations in pedal models, hindering rapid operation, the following solution can be found in the attached document. Figure 1 Appendix Figure 2 Appendix Figure 4 and attached Figure 6 The limiting mechanism includes the center position of the rotating gear 7 fixed at the output end of the servo motor 6. The outer end of the rotating gear 7 is meshed with the inner side of the tooth blocks of the two sets of connecting blocks 8. The inner side of the connecting block 8 is fixed with a push rod 9. The inner side of the left end of the connecting block 8 is also rotatably provided with an embedded rod 10. The end of the embedded rod 10 that extends into the inner side of the measuring frame 1 is fixed with a fixed square rod 13. There are two sets of push rods 9 symmetrically distributed about the transverse center line of the measuring frame 1. The outer side of the push rod 9 extends into the inner position of the measuring frame 1, and the outer end of the push rod 9 abuts against one side of the foot pedal fixing part 201.

[0027] First, place the foot pedal body 2 inside the measuring frame 1, ensuring that the foot pedal body 2 is positioned above the servo motor 6 on one side of the measuring frame 1. Then, by activating the servo motor 6, its output end rotates inside the measuring frame 1. This causes the servo motor 6 to drive the rotating gear 7 to rotate on the outside of the measuring frame 1. During rotation, the rotating gear 7 drives the two meshing connecting blocks 8 to move relative to each other on the outside of the measuring frame 1. The connecting blocks 8 then cause the push rod 9 to slide inside the measuring frame 1. The side will abut against the outside of the foot pedal fixing member 201, thereby limiting the foot pedal fixing member 201. At this time, the foot pedal body 2 of different models can be limited. Then, by activating the electric push rod 4, the output end of the electric push rod 4 can drive the pressure sensor 5 to move inside the fixing frame 3, so that the bottom position of the pressure sensor 5 is embedded in the protruding position on the rotating shaft fixedly connected to the foot pedal block 203. When the foot pedal fixing member 201 is displaced, the pressure on the foot pedal fixing member 201 can be known in time. At this time, the pressure value can be measured and processed through the display panel 101.

[0028] Example 2: To facilitate the measurement and processing of the relationship between pedal displacement and force, please refer to the attached document. Figure 1 -Appendix Figure 6 The system includes a measuring frame 1 and a foot pedal body 2 for measurement placed inside the measuring frame 1. A fixing frame 3 is fixed to the top right side of the measuring frame 1. An electric push rod 4 is installed on the inner wall of the fixing frame 3. The output end of the electric push rod 4 is installed at the top of a pressure sensor 5. The bottom of the pressure sensor 5 is embedded in a protruding part on one side of the foot pedal body 2. A servo motor 6 is fixedly installed inside the measuring frame 1. The output end of the servo motor 6 drives a limiting mechanism. The limiting mechanism can be adapted to foot pedal bodies 2 of different sizes. The foot pedal body 2 includes a horizontally arranged foot pedal fixing member 201. The left end of the foot pedal fixing member 201 is rotatably connected to one side of the foot pedal block 203 via a rotating shaft. The measuring frame 1 has a square-shaped docking hole 202 on both the front and rear sides of the rotating shaft. One side of the foot pedal block 203 is fixedly connected to the side of the rotating shaft. A display panel 101 is installed on the surface of the measuring frame 1. A rotating disk 11 is fixed to the outside of the embedded rod 10. The outer end of the rotating disk 11 is connected to the inner wall of the measuring frame 1 through a torsion spring 12. An indicator pin 14 is also fixed to the outer wall of the measuring frame 1. The outer end of the indicator pin 14 corresponds to the scale position of the rotating disk 11. The outer end of the fixed square rod 13 is embedded in the inner wall of the docking hole 202. The moving distance of the rotating disk 11 is greater than the distance that the end of the fixed square rod 13 is embedded in the docking hole 202.

[0029] When measuring the relationship between pedal displacement and force, the pedal body 2 is first limited. Then, the outer side of the fixed square rod 13 needs to be embedded in the docking hole 202. When the docking hole 202 is pressed, the docking hole 202 will drive the rotating shaft to rotate. In addition, the rotating shaft will also drive the docking hole 202 to rotate, which in turn will drive the fixed square rod 13 to rotate. At this time, the fixed square rod 13 drives the embedded rod 10 and the rotating disk 11 to rotate. The obtained value is indicated by the indicator pin 14. The pressure sensor 5 is located at the rotating shaft position between the foot pedal fixing part 201 and the foot pedal block 203, and the outer protruding position of the rotating shaft corresponds to the position below the pressure sensor 5. When the rotating shaft rotates, the protruding position squeezes the pressure sensor 5, and the pressure value can be obtained through the display panel 101. Through the above settings, the relationship between pedal displacement and force can be understood.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pedal displacement and force relationship measuring device, comprising a measuring frame (1) and a pedal body (2) for measurement placed inside the measuring frame (1); characterized in that A fixed frame (3) is fixed at the top right position of the measuring frame (1), an electric push rod (4) is installed at the inner wall position of the fixed frame (3), the output end of the electric push rod (4) is installed at the top position of a pressure sensor (5), the bottom position of the pressure sensor (5) is embedded into the protruding position of one side of the pedal body (2), a servo motor (6) is fixedly installed inside the measuring frame (1), and the output end of the servo motor (6) drives a limiting mechanism which can adapt to pedal bodies (2) of different sizes.

2. A pedal displacement versus force relationship measuring device according to claim 1, characterized in that: The pedal body (2) comprises a horizontally arranged pedal fixing part (201), and the left end of the pedal fixing part (201) is rotatably connected to one side of a pedal plate (203) through a rotating shaft, and the front and rear sides of the rotating shaft are provided with butt joints (202).

3. A pedal displacement versus force relationship measuring device according to claim 2, characterized in that: The butt joint (202) is square, the side of the pedal plate (203) is fixedly connected with the side of the rotating shaft, and a display panel (101) is installed on the surface of the measuring frame (1).

4. A pedal displacement versus force relationship measuring device as defined in claim 1, wherein: The limiting mechanism comprises the center of the rotating gear (7) fixed at the output end of the servo motor (6), the outer end of the rotating gear (7) is meshedly connected to the inner sides of two groups of tooth blocks of the linking blocks (8), the inner side of the linking block (8) is fixedly provided with a top-in rod (9), and the left inner side of the linking block (8) is also rotatably provided with an embedded rod (10), one end of the embedded rod (10) extending into the inner side of the measuring frame (1) is fixedly provided with a fixed square rod (13).

5. A pedal displacement versus force relationship measuring device according to claim 4, characterized in that: The top-in rods (9) are symmetrically distributed about the transverse center line of the measuring frame (1), the outer sides of the top-in rods (9) extend into the inner position of the measuring frame (1), and the outer ends of the top-in rods (9) abut against one side of the pedal fixing part (201).

6. A pedal displacement versus force relationship measuring device as defined in claim 4, wherein: The outer side of the embedded rod (10) is fixedly provided with a rotating disc (11), the outer end of the rotating disc (11) is connected between the inner wall of the measuring frame (1) and the torsion spring (12), the outer wall of the measuring frame (1) is also fixedly provided with an indicating thimble (14), and the outer end of the indicating thimble (14) corresponds to the scale position of the rotating disc (11).

7. A pedal displacement versus force relationship measuring device according to claim 6, characterized in that: The outer end of the fixed square rod (13) is embedded into the inner wall of the butt joint (202), and the moving distance of the rotating disc (11) is greater than the distance of the end of the fixed square rod (13) embedded into the inner part of the butt joint (202).

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