Electric pedals for automobiles

Abstract

The present invention relates to an electric pedal for an automobile, comprising a drive bracket, a drive mechanism and a pedal, the drive bracket and the drive mechanism being attached to the same side of the bottom of the vehicle body. The drive bracket comprises a first transmission mechanism and a first connecting rod, the front end of the first connecting rod is fixedly connected to the pedal, the first transmission mechanism drives the first connecting rod to be deployed and retracted, the drive shaft of the drive mechanism is directly fixedly connected to the first transmission mechanism, and drives the first transmission mechanism to be deployed and retracted, the first connecting rod drives the pedal to move downward outside the vehicle body when moving from a retracted state to a deployed state, the angle between the upper surface of the pedal and the ground is 3 to 8 degrees when the pedal is in the retracted state, and the upper surface of the pedal and the ground are approximately parallel when the pedal is in the deployed state. Since the drive shaft of the drive mechanism of the present invention is directly connected to the first transmission mechanism of the drive bracket, the conventional gear transmission mechanism is omitted, the manufacturing cost is reduced, and the generation of abnormal noise is reduced. When the pedal is in the stored state, the angle between the upper surface of the pedal and the ground is 3 to 8 degrees, so that no horizontal outward force component is generated, ensuring that the pedal is stored in the designated position.

Description

Technical Field

[0008] ,

[0001] The present invention relates to the technical field of automotive pedals, and particularly to electric automotive pedals.

Background Art

[0002] Vehicle pedals can be divided into fixed pedals and telescopic pedals. As the name implies, fixed pedals cannot realize the telescopic function of the pedals, and the pedals are always deployed against the side wall of the vehicle body when installed. However, telescopic pedals can realize the functions of storing the pedals in the non-use state and deploying the pedals in the use state through a telescopic support structure. When the pedals can be stored, they are located at the lower end of the side part of the vehicle body without protruding from the outside of the vehicle body, so when the vehicle passes through a narrow section, there will be no collision between the pedals and obstacles, and damage to the pedals is avoided.

[0003] However, the telescopic pedals of the prior art have many drawbacks and defects due to the unreasonable design of the telescopic support structure.

[0004] 1. When the pedal is in the stored state, the driven bracket structure is not firmly stored and will fall or loosen.

[0005] 2. The output end of the motor and the drive shaft have a complex gear transmission, which is difficult to ensure high manufacturing accuracy, the processing cost of the gear transmission mechanism is high, and abnormal noises are likely to occur in gear transmission.

[0006] 3. Between the drive shaft and the drive arm, due to the lack of a firm connection, relative sliding (mainly the rotation of the drive shaft relative to the drive arm) occurs, resulting in abnormal noises and noises.

[0007] 4. The transmission shaft and its connecting member are fixed by a lock bolt. Due to the clearance engagement between the shaft and the shaft hole, there is a clearance, which cannot withstand vibration and impact, and deformation and breakage occur.

[0008] 5. The drive shaft and the corresponding shaft bore are mostly made of iron with copper-plated shaft sleeves. After prolonged wear, the lubrication effect deteriorates, and the continuous loss of lubrication leads to the generation of abnormal noises.

[0009] 6. The shock-absorbing pad is installed between the drive arm and the support arm, resulting in a large torque being applied to the drive shaft, which reduces the stability and lifespan of the drive mechanism.

[0010] The U.S. Patent Specification (US10649483B2) discloses an electric pedal for automobiles. This electric pedal has the defects described above and needs to be improved urgently. [Overview of the project]

[0011] The object of the present invention is to provide an electric electric pedal for automobiles that solves the technical problems present in the conventional electric electric pedals for automobiles described above. The drive shaft of the drive mechanism of the electric pedal is directly connected to the first transmission mechanism of the drive bracket, eliminating the conventional gear transmission mechanism, which reduces manufacturing costs and simultaneously reduces the generation of abnormal noise. When the pedal is in the retracted position, the angle between its upper surface and the ground is 3 to 8 degrees, so no horizontal outward force component is generated, and it is possible to ensure that the pedal is retracted in the predetermined position.

[0012] To achieve the above objective, the technical means of the present invention are as follows.

[0013] An electric pedal for automobiles comprising a drive bracket, a drive mechanism, and a pedal, wherein the drive bracket and the drive mechanism are both mounted on the same side of the bottom of the vehicle body, the drive bracket includes a first transmission mechanism and a first connecting rod, the front end of the first connecting rod is fixedly connected to the pedal, the first transmission mechanism drives the deployment and retraction of the first connecting rod, the drive shaft of the drive mechanism is directly fixedly connected to the first transmission mechanism and drives the deployment and retraction of the first transmission mechanism to deploy and retract the first connecting rod, the pedal is driven to move the first connecting rod downward to the outside of the vehicle body when moving from a retracted state to an deployed state, the angle between the upper surface of the pedal and the ground is 3 to 8 degrees when the pedal is in the retracted state, and the upper surface of the pedal and the ground are substantially parallel when the pedal is in the deployed state.

[0014] The electric pedal for automobiles is characterized in that the drive mechanism includes a drive motor mounted on the bottom of the vehicle body, a gearbox is attached to the output terminal of the drive motor, and the gearbox is connected to a first transmission mechanism by a drive shaft.

[0015] The first transmission mechanism includes a first connecting base, a first drive arm, and a first support arm, wherein the drive shaft is fixedly connected to one end of the first drive arm by passing through the first connecting base, the other end of the first drive arm is rotatably connected to a first connecting rod, and both ends of the first support arm are rotatably connected to the first connecting base and the first connecting rod, respectively, in the electric pedal for an automobile.

[0016] The first connecting rod is provided with connecting lugs, and the connecting lugs have two first and second shaft holes perpendicular to the connecting lugs, with the axes of the first shaft holes parallel to each other. The first connecting base is provided with a connecting plate, and the connecting plate has two third and fourth shaft holes perpendicular to the connecting plate, with the axes of the third shaft holes parallel to each other. The first support arm has a first transmission shaft fixed to one end and a second transmission shaft fixed to the other end. An electric pedal for an automobile, characterized in that the first transmission shaft of the first support arm engages with the first shaft hole of the first connecting rod, the second transmission shaft of the first support arm engages with the third shaft hole of the first connecting seat, a third drive shaft is fixedly provided at one end of the first drive arm, the third drive shaft of the first drive arm engages with the second shaft hole of the first connecting rod, and the drive shaft is fixedly connected to the other end of the first drive arm and engages with the fourth shaft hole of the first connecting base.

[0017] An electric pedal for an automobile, characterized in that the first support arm has through-holes formed at both ends for mounting a first transmission shaft and a second transmission shaft, with the axes of the fifth and sixth shafts being parallel, and the first drive arm has a through-hole formed at one end for mounting a third transmission shaft and an eighth shaft through-hole formed at the other end for mounting a drive shaft, with the axes of the seventh and eighth shafts being parallel.

[0018] An electric pedal for an automobile, characterized in that a transmission shaft rotation device is provided at both ends of the first support arm, and the first drive arm is provided with a transmission shaft rotation device at one end and a drive shaft locking device at the other end.

[0019] The aforementioned power transmission shaft rotating device includes a shaft sleeve, and both ends of the first, second, and third power transmission shafts are rotatably engaged with the shaft sleeve, the central portion of the first power transmission shaft is interfering-locked with the first shaft hole of the first connecting rod, the central portion of the second power transmission shaft is interfering-locked with the third shaft hole of the first connecting base, and the central portion of the third power transmission shaft is interfering-locked with the second shaft hole of the first connecting rod, characterized in that the power transmission shaft rotating device includes a shaft sleeve, both ends of the first power transmission shaft, second power transmission shaft and third power transmission shaft are rotatably engaged with the shaft sleeve, the central portion of the first power transmission shaft is interfering-locked with the second shaft hole of the first connecting rod, and so on, for an electric pedal for an automobile.

[0020] The drive shaft locking device includes a first lock bolt and a rectangular fixing block, wherein a flat groove is formed in the central part of the drive shaft, a first through hole is formed at one end of the first drive arm connected to the drive shaft, perpendicular to and coaxial with the eighth shaft hole, the rectangular fixing block is inserted into the eighth shaft hole from one side of the first drive arm and engages with the flat groove of the drive shaft, a first screw hole is formed in the rectangular fixing block which is coaxial with it, and the first lock bolt is inserted into the first through hole from the other side of the first drive arm and screws into the first screw hole.

[0021] An electric pedal for an automobile, characterized in that shaft sleeves are provided in all of the fifth, sixth, and seventh shaft holes, and a shaft sleeve is also provided in the fourth shaft hole.

[0022] An electric pedal for an automobile, further comprising at least one driven bracket, the driven bracket comprising a second transmission mechanism and a second connecting rod, the front end of the second connecting rod being fixedly connected to the pedal, and the drive bracket causing the second connecting rod to synchronously extend and retract by driving the second transmission mechanism to do so by the pedal.

[0023] The electric pedal for an automobile is characterized in that the driven bracket has a structure identical to that of the drive bracket, that is, the driven bracket lacks a drive mechanism and drive shaft, and a fourth transmission shaft is used instead of a drive shaft, except that it consists of a second connecting base, a second drive arm, a second support arm, and a second connecting rod.

[0024] A sunken groove is formed on one side facing the first support arm and the second support arm of the first connecting rod and the second connecting rod, and a shock absorption pad is attached to both of them. The electric pedal for automobiles is characterized by this.

[0025] A T-shaped groove is formed on the pedal, and a connection block with a T-shaped cross-section is attached to it. A concave groove that engages with the connection block is formed at the front end of the first connecting rod and the second connecting rod. A second screw hole for locking the pedal is formed in the connection block. The electric pedal for automobiles is characterized by this.

[0026] When the pedal is in the storage position and the deployment position, an acute angle is formed between the upper surface of the pedal and the ground. The electric pedal for automobiles is characterized by this.

[0027] The angle at which the upper surface of the pedal inclines inward is 0 to 5 degrees. The electric pedal for automobiles is characterized by this.

[0028] Since the present invention has the above technical means, it has the following advantages.

[0029] 1. Since the present invention has a special support structure, it is guaranteed that the storage state and the deployment state of the pedal are horizontal or in a state similar to horizontal, and it is guaranteed that the pedal is stored in a predetermined position. When the pedal is deployed during the running process of the vehicle, it is avoided that the passing performance of the vehicle body is affected and danger is caused. In particular, when the pedal is in the storage state, the angle between the upper surface of the pedal and the ground is 3 to 8 degrees, and no horizontal outward component force is generated, and it can be guaranteed that the pedal is stored in a predetermined position.

[0030] 2. The output shaft of the drive mechanism of the present invention is a drive shaft, the conventional gear transmission mechanism is replaced, and it has a good self-locking function.

[0031] 3. In the present invention, the drive shaft and the first drive arm are locked by the first lock bolt, so that the front surface of the rectangular fixing block is pressed against the flat groove of the drive shaft, thereby ensuring the strength of the connection between the drive shaft and the first drive arm.

[0032] 4. In the present invention, all transmission shafts and their corresponding support arms or drive arms are fixed together by interference lock engagements, which is more robust and resistant to vibration and shock than fixing them to the shaft holes of the corresponding support arms or drive arms with lock bolts.

[0033] 5. In the present invention, a shaft sleeve made of a special material is provided between all transmission shafts and drive shafts and the shaft bore. Since the shaft sleeve has a good self-lubricating effect, abnormal noise due to a decrease in lubrication effect after long-term use is avoided.

[0034] 6. In the present invention, the first connecting rod and the second connecting rod and the pedal are fixed by a connecting block. The pedal has a T-shaped groove for attaching the connecting block. Since the front ends of both the first connecting rod and the second connecting rod have recessed grooves that engage with the corresponding connecting block, the force between the pedal and the first connecting rod and the second connecting rod is transmitted to the outer wall of the connecting block so that the force is not entirely dependent on the bolts. Furthermore, even after employing the auxiliary connection by the connecting block, it can be used to detect whether the mounting positions of the drive bracket and the driven bracket are correct. [Brief explanation of the drawing]

[0035] [Figure 1] This is a schematic diagram showing the storage state of the drive bracket of the present invention. [Figure 2] This is a schematic diagram showing the deployed state of the drive bracket of the present invention. [Figure 3] This is a schematic diagram of the three-dimensional exploded structure of an electric pedal for automobiles according to the present invention. [Figure 4]This is a schematic diagram of the exploded three-dimensional structure of the drive bracket of the present invention. [Figure 5] This is a schematic diagram of the exploded structure of the driven bracket of the present invention. [Figure 6] This is a magnified schematic diagram of area A in Figure 2. [Figure 7] This is a schematic diagram showing the movement of the drive bracket of the present invention from the stored position to the deployed position. [Modes for carrying out the invention]

[0036] Referring to Figures 1 to 7, the present invention discloses an electric pedal for an automobile. As shown in the figures, the electric pedal for an automobile includes a drive bracket 2, a drive mechanism 4, and a pedal 5. Both the drive bracket 2 and the drive mechanism 4 are mounted on the same side of the bottom of the vehicle body 1. The present invention is characterized as follows: The drive bracket 2 includes a first transmission mechanism and a first connecting rod 2d. The front end of the first connecting rod 2d is fixedly connected to the pedal 5. The first transmission mechanism drives the deployment and retraction of the first connecting rod 2d. The drive shaft 4c of the drive mechanism 4 is directly fixedly connected to the first transmission mechanism and drives the deployment and retraction of the first transmission mechanism, thereby causing the first connecting rod 2d to deploy and retract. The first connecting rod 2d drives the pedal 5 to move downward and outward from the vehicle body 1 when moving from a retracted state to an deployed state. When the pedal 5 is in the retracted state, the angle between the upper surface of the pedal 5 and the ground 7 is 3 to 8 degrees. When the pedal 5 is in the extended state, the upper surface of the pedal 5 and the ground 7 are approximately parallel.

[0037] As shown in Figures 1, 2, and 4, in the present invention, the drive mechanism 4 includes a drive motor 4a mounted on the bottom of the vehicle body 1. A gearbox 4b is attached to the output terminal of the drive motor 4a. The gearbox 4b is connected to the first transmission mechanism by a drive shaft 4c.

[0038] In the present invention, the first transmission mechanism includes a first connecting base 2a, a first drive arm 2b, and a first support arm 2c. The drive shaft 4c is fixedly connected to one end of the first drive arm 2b by passing through the first connecting base 2a. The other end of the first drive arm 2b is rotatably connected to a first connecting rod 2d. Both ends of the first support arm 2c are rotatably connected to the first connecting base 2a and the first connecting rod 2d, respectively.

[0039] In the present invention, the first connecting rod 2d is provided with connecting ears 6. Two first shaft holes 10 and second shaft holes 11 are formed in the connecting ears 6, perpendicular to the connecting ears 6. The axis of the first shaft hole 10 and the axis of the second shaft hole 11 are parallel. The first connecting base 2a is provided with a connecting plate 8. Two third shaft holes 12 and fourth shaft holes 13 are formed in the connecting plate 8, perpendicular to the connecting plate 8. The axis of the third shaft hole 12 and the axis of the fourth shaft hole 13 are parallel. The first support arm 2c has a first transmission shaft 18 fixed to one end and a second transmission shaft 19 fixed to the other end. The first transmission shaft 18 of the first support arm 2c engages with the first shaft hole 10 of the first connecting rod 2d. The second transmission shaft 19 of the first support arm 2c engages with the third shaft hole 12 of the first connecting seat 2a. A third drive shaft 20 is fixedly provided at one end of the first drive arm 2b. The third drive shaft 20 of the first drive arm 2b engages with the second shaft hole 11 of the first connecting rod 2d. The drive shaft 4c is fixedly connected to the other end of the first drive arm 2b and engages with the fourth shaft hole 13 of the first connecting base 2a.

[0040] In the present invention, a fifth shaft hole 14a for mounting a first transmission shaft 18 and a sixth shaft hole 14b for mounting a second transmission shaft 19 are formed through both ends of the first support arm 2c. The axis of the fifth shaft hole 14a and the axis of the sixth shaft hole 14b are parallel. The first drive arm 2b has a seventh shaft hole 15 formed through one end for mounting a third transmission shaft 20 and an eighth shaft hole 16 formed through the other end for mounting a drive shaft 4c. The axis of the seventh shaft hole 15 and the axis of the eighth shaft hole 16 are parallel.

[0041] In the present invention, a transmission shaft rotation device is provided at both ends of the first support arm 2c. The first drive arm 2b is provided with a transmission shaft rotation device at one end and a drive shaft locking device at the other end.

[0042] In the present invention, the transmission shaft rotating device includes a shaft sleeve 22. Both ends of the first transmission shaft 18, the second transmission shaft 19, and the third transmission shaft 20 are rotatably engaged with the shaft sleeve 22. The central portion of the first transmission shaft 18 interferentially locks into the first shaft hole 10 of the first connecting rod 2d. The central portion of the second transmission shaft 19 interferentially locks into the third shaft hole 12 of the first connecting base 2a. The central portion of the third transmission shaft 20 interferentially locks into the second shaft hole 11 of the first connecting rod 2d.

[0043] In the present invention, the drive shaft locking device includes a first lock bolt 23 and a rectangular fixing block 29. Flat grooves 4c1 and 4c2 are formed in the central part of the drive shaft 4c. A first through hole 27 is formed at one end of the first drive arm 2b that is connected to the drive shaft 4c, and is perpendicular to and coaxial with the eighth shaft hole 16. The rectangular fixing block 29 is inserted into the eighth shaft hole 16 from one side of the first drive arm 2b and engages with the flat grooves 4c1 and 4c2 of the drive shaft 4c. A first screw hole 25 is formed in the rectangular fixing block 29, which is coaxial with it. The first lock bolt 23 is inserted into the first through hole 27 from the other side of the first drive arm 2b and screws into the first screw hole 25.

[0044] In the present invention, shaft sleeves 22 are provided in all of the fifth shaft hole 14a, the sixth shaft hole 14b, and the seventh shaft hole 15. A shaft sleeve 30 is also provided in the fourth shaft hole 13.

[0045] As shown in Figures 3 and 5, the electric pedal for automobiles according to the present invention further includes at least one driven bracket 3. The driven bracket 3 includes a second transmission mechanism and a second connecting rod 3d. The front end of the second connecting rod 3d is fixedly connected to the pedal 5. The drive bracket 2 drives the second transmission mechanism so that the pedal 5 synchronously extends and retracts the second connecting rod 3d.

[0046] Specifically, referring to Figure 4, the driven bracket 3 has the same structure as the drive bracket 2. That is, the driven bracket 3 consists of a second connecting base 3a, a second drive arm 3b, a second support arm 3c, and a second connecting rod 3d, except that it lacks a drive mechanism 4 and a drive shaft 4c, and a fourth transmission shaft 21 is used instead of the drive shaft 4c.

[0047] Referring to Figure 6, recessed grooves are formed on either side of the first connecting rod 2d and the second connecting rod 3d facing the first support arm 2c and the second support arm 3c, with impact-absorbing pads 31 attached.

[0048] Referring to Figures 3, 4, and 5, in the present invention, the pedal 5 has a T-shaped groove 5a to which a connecting block 33 having a T-shaped cross-section is attached. The front ends of the first connecting rod 2d and the second connecting rod 3d have recessed grooves that engage with the connecting block 33. The connecting block 33 has a second screw hole 26 for locking the pedal 5.

[0049] In a preferred configuration, when the pedal 5 is in the retracted position and the extended position, the upper surface of the pedal 5 and the ground 7 form an acute angle.

[0050] In a preferred configuration, the angle at which the upper surface of the pedal 5 tilts inward is between 0 and 5 degrees 32 degrees.

[0051] One embodiment of the electric pedal for automobiles according to the present invention has a special support structure design. Here, the drive bracket 2 is directly connected to the drive shaft 4c of the drive mechanism 4. That is, the motor output shaft is the drive shaft 4c, and the gear transmission mechanism is replaced, solving the conventional drawback that the gear transmission mechanism drives the extension and retraction of the pedal 5, which tends to generate abnormal noise. The manufacturing cost of the entire automobile pedal is significantly reduced because the complex gear transmission mechanism is omitted. The drive motor 4a of the drive mechanism 4 is fitted with a gearbox 4b, which has a good self-locking function and, combined with the special support structure, ensures that the pedal 5 is always positioned horizontally or similarly horizontally during the process of extending and retracting. In particular, when in the retracted position, the angle between the upper surface of the pedal 5 and the ground is 3 to 8 degrees, and no horizontal outward force component is generated. That is, the situation in which conventional retractable pedals 5 are not properly retracted due to the above horizontal outward force component does not occur, and the pedal 5 is not properly retracted during the driving process, which can cause the pedal 5 to extend and thereby affect the vehicle's ability to pass through and create a dangerous situation.

[0052] In this invention, the fixed connection between the drive shaft 4c and the first drive arm 2b is robust. Specifically, the engagement of the drive shaft locking device with the flat grooves 4c1 and 4c2 provided on the drive shaft 4c, and the locking by the first lock bolt 23, presses the front surface of the rectangular fixing block 29 against the flat grooves 4c1 and 4c2 of the drive shaft 4c, thereby ensuring the robustness of the connection between the drive shaft 4c and the first drive arm 2b, and effectively avoiding relative sliding caused by loosening of the connection between the drive shaft 4c and the first drive arm 2b during long-term use. All transmission shafts and their corresponding support arms or drive arms are fixed together by the first lock bolt 23, making the connection more robust than simply engaging the transmission shaft with the shaft hole of the corresponding support arm or drive arm. Special material shaft sleeves 22 and 30 are provided between all transmission shafts and the drive shaft 4c and their shaft holes. The shaft sleeves 20 and 30 have a good self-lubricating effect, thus preventing abnormal noise caused by a decrease in lubrication after prolonged use. Since the first connecting rod 2d and the pedal 5 are connected by a connecting block 33, the force between the pedal 5 and the first connecting rod 2d is transmitted to the outer wall of the connecting block 33 so that the force is not entirely dependent on the bolt.

[0053] Furthermore, when the pedal 5 of the present invention is in the retracted state, the angle at which the upper surface of the pedal 5 and the ground are tilted inward is 3 to 8 degrees. Therefore, during the vehicle's operation, scattered crushed stone and other foreign matter accumulate on the pedal, and when the pedal is extended, the presence of foreign matter affects the usability of the pedal and creates a risk of stepping on it. When the pedal 5 is in the retracted state, the angle at which the upper surface of the pedal 5 and the ground are tilted inward is 3 to 8 degrees. This reduces the gap between the pedal and the vehicle body, which is advantageous for concealing the pedal when it is in the retracted state, and improves the visibility of the concealed pedal.

[0054] The present invention employs a special support structure design. The drive bracket 2 is connected to the drive mechanism 4. The drive mechanism 4 drives the drive bracket 2 to be retracted or extended. As shown in Figure 1, the first drive arm 2b is in close contact with the first support arm 2c. At this time, the pedal 5 provided at the front end of the first connecting rod 2d is in a horizontal position, or at a very small angle with the horizontal. The forces acting on the first connecting rod 2d are its own gravity and the vertically downward force exerted by the pedal 5, both of which are vertical. After the drive bracket 2 is retracted in a predetermined position, there is no outward pulling force due to the self-locking force of the gearbox 4b, or the pulling force is very small and insufficient to overcome the self-locking force of the gearbox 4b. Therefore, there is no risk of the drive bracket 2 being extended or extended to a certain extent, and the engagement gap between the pedal 5 and the vehicle body 1 is approximately the same.

[0055] In this invention, the four components—the first connecting base 2a, the first connecting rod 2d, the first drive arm 2b, and the first support arm 2c—constitute a stable four-bar linkage mechanism. The drive mechanism 4 enables stable deployment and retraction of the first connecting rod 2d, thereby guaranteeing the posture of the pedal 5 in the retracted and deployed states. Specifically, it is guaranteed that the upper surface of the pedal 5 is substantially parallel to the ground, and consequently, in the retracted or deployed state, the force applied by the pedal 5 to the first connecting rod 2d is guaranteed to be vertically downward or substantially vertically downward. In particular, the generation of a horizontally outward component force prevents the drive bracket 2 from being retracted into its predetermined position in the retracted state.

[0056] In the present invention, a transmission shaft rotation device is provided at both ends of the first support arm 2c. The first drive arm 2b is provided with a transmission shaft rotation device at one end and a drive shaft locking device at the other end.

[0057] Furthermore, since the drive shaft 4c employs a detachable mounting method with the corresponding drive arm, the rigidity of the drive shaft 4c's mounting directly affects the stability of the drive bracket 2's operation, and a weak mounting may cause abnormal noise. Therefore, in this invention, a drive shaft 4c locking device is provided for the drive shaft 4c.

[0058] In this invention, since the torque that can be withstood after the drive shaft 4c and the first drive arm 2b are fixedly connected is much greater than the torque of each of the other transmission shafts, the drive shaft 4c locking device has a stronger locking function than the transmission shaft locking device. Here, the rectangular fixing block 29 and the first lock bolt 23 are attached to both sides of the first drive arm 2b, and by locking the first lock bolt 23, the front surface of the rectangular fixing block 29 can be pressed tightly against the flat grooves 4c1 and 4c2 of the drive shaft 4c, thereby more firmly fixing the drive shaft 4c and the first drive arm 2b.

[0059] In this invention, shaft sleeves 22 are provided in all of the fifth shaft hole 14a, the sixth shaft hole 14b, and the seventh shaft hole 15. A shaft sleeve 30 is also provided in the fourth shaft hole 13.

[0060] When the drive shaft 4c and each transmission shaft and its corresponding shaft hole engage and operate, a lubricating medium is normally required between the shaft and the inside of the hole. Since both the hole and the shaft are made of metal, without continuous replenishment of the lubricating medium, friction between the shaft and the shaft hole will cause wear and generate noise over time. Improving the wear resistance of the shaft and shaft hole requires special wear-resistant treatment, which makes the manufacturing process more complex and relatively increases manufacturing costs. Therefore, in this invention, shaft sleeves 22 and 30 are provided in each of the shaft holes. Both shaft sleeves 22 and 30 are made of a special material that has a self-lubricating effect. Because the shaft sleeves 22 and 30 are relatively small, different materials can be used for them, which is convenient for manufacturing and processing and significantly reduces costs.

[0061] In the present invention, a recessed groove is formed on either the first support arm 2c or the second support arm 3c of the first connecting rod 2d and the second connecting rod 3d, with an impact-absorbing pad 31 attached to it.

[0062] When the pedal 5 is in the retracted or extended position, the drive bracket 2 should have good stability, and collisions and impacts between its components should be minimized when reaching the retracted or extended position. The shock-absorbing pad 31 is attached to the inside of the first connecting rod 2d, specifically on one side facing the first support arm 2c. When the pedal 5 is in the fully extended position, the first support arm 2c compresses the shock-absorbing pad 31. At this time, the three components—the first connecting rod 2d, the shock-absorbing pad 31, and the first support arm 2c—are in close contact, achieving self-locking when the drive bracket 2 is in the extended position. The shock-absorbing pad 31 ensures that the first connecting rod 2d and the first support arm 2c are in close contact, while simultaneously reducing collisions between the first support arm 2c and the first connecting rod 2d. When the pedal is pressed down and used, the downward force of gravity is distributed to the first connecting rod 2d and the first support arm 2c, reducing the force on the first drive arm 2b and the torsional force on the drive shaft 4c of the first drive arm 2b, thereby improving the stability and lifespan of the drive mechanism 4. When the pedal 5 is retracted, the shock-absorbing pad 31 of the first connecting rod 2d is similarly compressed by the first drive arm 2b, and the three are brought into close contact, causing the drive bracket 2 to be in a different positioning state.

[0063] When pedal 5 is in the extended position, the drive bracket 2 should have good stability and should also have a self-locking function when it reaches the extended position. Specifically, when pedal 5 is in the fully extended position, the first support arm 2c compresses the shock-absorbing pad 31. At this time, the three components, the first connecting rod 2d, the shock-absorbing pad 31, and the first support arm 2c, are in close contact, thereby achieving self-locking when the drive bracket 2 and the driven bracket 3 are in the extended position. By forming a self-locking mechanism at the corresponding position of the shock-absorbing pad 31, a self-locking state is achieved for the user to press down on the electric side pedal.

[0064] In this invention, the pedal 5 has a T-shaped groove 5a to which a connecting block 33 having a T-shaped cross-section is attached. The front ends of the first connecting rod 2d and the second connecting rod 3d have recessed grooves that engage with the connecting block 33. The connecting block 33 has a second screw hole 26 for locking the pedal 5.

[0065] Since the first connecting rod 2d and the pedal 5 are connected by a connecting block 33, the force conditions between the pedal 5 and the first connecting rod 2d are transmitted to the outer wall of the connecting block 33 so that the force acting on them does not depend entirely on the bolts.

[0066] When pedal 5 is in the retracted position, the angle at which the upper surface of pedal 5 and the ground are tilted inward is 3 to 8 degrees, and when it is extended, the upper surface of pedal 5 and the ground are almost parallel.

[0067] In the ideal state, regardless of whether the pedal 5 is in the retracted position or the extended position, the upper surface of the pedal 5 is kept horizontal to the ground. Specifically, when the pedal 5 is in the retracted position, the force applied to the first connecting rod 2d by the pedal 5 can be kept vertically downward, preventing the generation of an outward horizontal force component and ensuring that the drive bracket 2 is securely retracted.

[0068] When the pedal 5 is in the retracted position and the extended position, it is preferable that the upper surface of the pedal 5 and the ground form an acute angle.

[0069] Under conditions that do not affect its use, the upper surface of pedal 5 can form a small angle with the ground when in the stowed and extended positions.

[0070] More specifically, in the retracted position of pedal 5, the angle at which the upper surface of pedal 5 tilts inward is 3 to 8 degrees, and in the extended position, the angle at which the upper surface of pedal 5 tilts inward is 0 to 5 degrees.

[0071] To ensure the reliability of pedal 5, the upper surface of pedal 5 is preferably tilted inward. If the user's soles are relatively slippery, the upper surface of pedal 5 will not tilt outward, preventing the user from slipping and falling. To ensure the aesthetic appearance of pedal 5 in its deployed state, that is, to prevent the overall appearance of the vehicle from being affected by an excessively large tilt angle, the inward tilt angle of the upper surface of pedal 5 should be as small as possible, and in this embodiment, it is preferably 0 to 5 degrees.

[0072] Another embodiment of the present invention features a special support structure design. Here, the drive bracket 2 is directly connected to the drive shaft 4c of the drive mechanism 4. That is, the motor output shaft is the drive shaft 4c, and the gear transmission mechanism is replaced, solving the conventional drawback that the gear transmission mechanism is prone to generating noise when driving the extension and retraction of the pedal 5. The overall manufacturing cost of the automobile pedal is significantly reduced because the complex gear transmission mechanism is omitted. The drive motor 4a of the drive mechanism 4 is fitted with a gearbox 4b, which has a good self-locking function and, combined with the special support structure, ensures that the pedal 5 is always positioned horizontally or similarly horizontally during the process of extending and retracting. In particular, when in the retracted position, when the pedal 5 is in the horizontal position, the force applied to the support structure by the weight of the pedal does not generate a horizontal outward component force. That is, the situation in which conventional retractable pedals 5 are not properly retracted due to the above horizontal outward component force is avoided, and the pedal 5 is not properly retracted during the driving process, which can cause the pedal 5 to extend and thereby affect the vehicle's ability to pass through and create a dangerous situation.

[0073] The fixed connection between the drive shaft 4c and the first drive arm 2b is robust. Specifically, the engagement of the drive shaft locking device with the flat grooves 4c1 and 4c2 provided on the drive shaft 4c, and the locking by the first lock bolt 23, presses the front surface of the rectangular fixing block 29 against the flat grooves 4c1 and 4c2 of the drive shaft 4c, thereby ensuring the robustness of the connection between the drive shaft 4c and the first drive arm 2b, and effectively preventing relative sliding caused by loosening of the connection between the drive shaft 4c and the first drive arm 2b during long-term use. All transmission shafts and their corresponding support arms or drive arms are fixed together by the first lock bolt 23, making the connection more robust than simply engaging the transmission shaft with the shaft hole of the corresponding support arm or drive arm. Special material shaft sleeves 22 and 30 are provided between all transmission shafts and drive shafts 4C and their shaft holes. The shaft sleeves 20 and 30 have a good self-lubricating effect, thus avoiding abnormal noise due to a decrease in lubrication after long-term use. The first connecting rod 2d and the second connecting rod 3d are connected to the pedal 5 by a connecting block 33, so that the force between the pedal 5 and the first connecting rod 2d and the second connecting rod 3d does not depend entirely on the bolts, the force conditions are transmitted to the outer wall of the connecting block 33. Furthermore, even after employing the auxiliary connection by the connecting block 33, it can be used to detect whether the mounting positions of the drive bracket 2 and the driven bracket 3 are correct. For example, if the first connecting rod 2d of the drive bracket 2 is already connected to the pedal 5, and the groove of the second connecting rod 3d cannot engage with the connecting block 33 at the corresponding position in a predetermined position, it indicates that there is a deviation in the mounting of the driven bracket 3 and the drive bracket 2, and vice versa.

[0074] This embodiment includes at least one driven bracket 3. The driven bracket 3 includes a second transmission mechanism and a second connecting rod 3d. The front end of the second connecting rod 3d is fixedly connected to the pedal 5. The drive bracket 2 drives the second transmission mechanism so that the second connecting rod 3d is synchronously deployed and retracted by the pedal 5.

[0075] Furthermore, the present invention employs a special support structure design, namely a drive bracket 2 and a driven bracket 3. Here, the drive bracket 2 is connected to a drive mechanism 4. The drive mechanism 4 drives the drive bracket 2 to be retracted or extended. As shown in the state in Figure 1, taking the drive bracket 2 as an example, the first drive arm 2b is in close contact with the first support arm 2c. At this time, the pedal 5 provided at the front end of the first connecting rod 2d is in a horizontal position, or at a very small angle with the horizontal direction. The forces acting on the first connecting rod 2d are its own gravity and the vertically downward force exerted by the pedal 5, both of which are vertical. After the drive bracket 2 is retracted to a predetermined position, the driven bracket 3 is also retracted to its original position by the traction force of the pedal. Due to the self-locking force of the gearbox 4b, there is no outward pulling force, or the pulling force is very small and insufficient to overcome the self-locking force of the gearbox 4b. As a result, there is no risk of the drive bracket 2 and the driven bracket 3 being deployed or deployed to some extent, and the engagement gap between the pedal 5 and the vehicle body 1 is approximately the same.

[0076] The number of driven brackets 3 is determined based on the length of the pedal 5 in the actual vehicle. Typically, if the pedal 5 is relatively long, a dual support structure with one drive bracket 2 and one driven bracket 3 may be adopted, or a multi-support structure with one drive bracket 2 and multiple driven brackets 3 may be adopted.

[0077] The drive mechanism 4 includes a drive motor 4a mounted on the bottom of the vehicle body 1. A gearbox 4b is attached to the output terminal of the drive motor 4a. The drive shaft 4c of the gearbox 4b is connected to the first transmission mechanism.

[0078] By directly connecting the drive shaft 4c of the gearbox 4b to the first transmission mechanism, the complex gear transmission mechanism is eliminated, reducing manufacturing costs.

[0079] The first transmission mechanism includes a first connecting base 2a, a first drive arm 2b, and a first support arm 2c. The drive shaft 4c is fixedly connected to one end of the first drive arm 2b by passing through the first connecting base. The other end of the first drive arm 2b is rotatably connected to a first connecting rod 2d. Both ends of the first support arm 2c are rotatably connected to the first connecting base 2a and the first connecting rod 2d, respectively. The second transmission mechanism includes a second connecting base 3a, a second drive arm 3b, and a second support arm 3c. Both ends of the second drive arm 3b are rotatably connected to the second connecting base 3a and the second connecting rod 3d, respectively. Both ends of the second support arm 3c are rotatably connected to the second connecting base 3a and the second connecting rod 3d, respectively.

[0080] Both the first connecting rod 2d and the second connecting rod 3d are provided with connecting ears 6. The connecting ears 6 have two first shaft holes 10 and a second shaft hole 11 formed perpendicular to the connecting ears 6. The axis of the first shaft hole 10 and the axis of the second shaft hole 11 are parallel. Both the first connecting base 2a and the second connecting base 3a are provided with connecting plates 8. The connecting plates 8 have two third shaft holes 12 and a fourth shaft hole 13 formed perpendicular to the connecting plates 8. The axis of the third shaft hole 12 and the axis of the fourth shaft hole 13 are parallel. The first support arm 2c and the second support arm 3c are each provided with a first transmission shaft 18 fixed to one end and a second transmission shaft 19 fixed to the other end. The first transmission shaft 18 of the first support arm 2c engages with the first shaft hole 10 of the first connecting rod 2d. The second transmission shaft 19 of the first support arm 2c engages with the third shaft hole 12 of the first connecting base. The first transmission shaft 18 of the second support arm 3c engages with the first shaft hole 10 of the second connecting rod 3d. The second transmission shaft 19 of the second support arm 3c engages with the third shaft hole 12 of the second connecting base. A third transmission shaft 20 is fixedly provided at one end of either the first drive arm 2b or the second drive arm 3b. The third transmission shaft 20 of the first drive arm 2b engages with the second shaft hole 11 of the first connecting rod 2d. The third transmission shaft 20 of the second drive arm 3b engages with the second shaft hole 11 of the second connecting rod 3d. The drive shaft 4c is fixedly connected to the other end of the first drive arm 2b and engages with the fourth shaft hole 13 of the first connecting base 2a. A fourth transmission shaft 21 is fixedly mounted at the other end of the second drive arm 3b. Both ends of the fourth transmission shaft 21 engage with the fourth shaft hole 13 of the second connecting base 3a.

[0081] Here, the first connecting base 2a, the first connecting rod 2d, the first drive arm 2b, and the first support arm 2c constitute a stable four-bar linkage mechanism. The drive mechanism 4 enables stable deployment and retraction of the first connecting rod 2d, thereby guaranteeing the posture of the pedal 5 in the retracted and deployed states. That is, it is guaranteed that the upper surface of the pedal 5 is substantially parallel to the ground, and consequently, it is guaranteed that the force applied by the pedal 5 to the first connecting rod 2d is vertically downward or substantially vertically downward in the retracted or deployed state, and in particular, the generation of a horizontally outward component force prevents the drive bracket 2 from not being retracted to its predetermined position in the retracted state. Similarly, the second connecting base 3a, the second connecting rod 3d, the second drive arm 3b, and the second support arm 3c also constitute a stable four-bar linkage mechanism. Since no horizontally outward force component is generated on the second connecting rod 3d when the pedal is retracted or extended, the self-locking force of the gearbox 4b of the drive bracket 2 is sufficient to ensure that the driven bracket 3 can be retracted into place.

[0082] The first support arm 2c and the second support arm 3c have through-holes formed at both ends: a fifth shaft hole 14a for mounting the first transmission shaft 18 and a sixth shaft hole 14b for mounting the second transmission shaft 19. The first drive arm 2b and the second drive arm 3b have through-holes formed at one end: a seventh shaft hole 15 for mounting the third transmission shaft 20. The other end of the first drive arm 2b has an eighth shaft hole 16 for mounting the drive shaft 4c. The other end of the second drive arm 3b has an eighth shaft hole 16 for mounting the fourth transmission shaft 21.

[0083] The first support arm 2c is provided with a transmission shaft rotation device at both ends. The first drive arm 2b is provided with a transmission shaft rotation device at one end and a drive shaft locking device at the other end.

[0084] Furthermore, since the drive shaft 4c employs a detachable mounting method with the corresponding drive arm, the rigidity of the drive shaft 4c's mounting directly affects the stability of the drive bracket 2's operation, and a weak mounting may cause abnormal noise. Therefore, in this invention, a drive shaft 4c locking device is provided for the drive shaft 4c.

[0085] The drive shaft locking device includes a first lock bolt 23 and a rectangular fixing block 29. Flat grooves 4c1 and 4c2 are formed in the central part of the drive shaft 4c. A first through hole 27 is formed at one end of the first drive arm 2b that is connected to the drive shaft 4c, and is perpendicular to and coaxial with the eighth shaft hole 16. The rectangular fixing block 29 is inserted into the eighth shaft hole 16 from one side of the first drive arm 2b and engages with the flat grooves 4c1 and 4c2 of the drive shaft 4c. A first screw hole 25 is formed in the rectangular fixing block 29, which is coaxial with it. The first lock bolt 23 is inserted into the first through hole 27 from the other side of the first drive arm 2b and screws into the first screw hole 25.

[0086] Since the torque that can be withstood after the drive shaft 4c and the first drive arm 2b are fixedly connected is much greater than the torque of each of the other transmission shafts, the drive shaft 4c locking device has a stronger locking function than the transmission shaft locking device. Here, the rectangular fixing block 29 and the first lock bolt 23 are attached to both sides of the first drive arm 2b, and by locking the first lock bolt 23, the front surface of the rectangular fixing block 29 can be pressed more tightly against the flat grooves 4c1 and 4c2 of the drive shaft 4c, thereby more firmly fixing the drive shaft 4c and the first drive arm 2b.

[0087] A shaft sleeve 22 is provided in each of the fifth shaft hole 14a, the sixth shaft hole 14b, and the seventh shaft hole 15. A shaft sleeve 30 is also provided in the fourth shaft hole 13.

[0088] When the drive shaft 4c and each transmission shaft and its corresponding shaft hole engage and operate, a lubricating medium is normally required between the shaft and the inside of the hole. Since both the hole and the shaft are made of metal, without continuous replenishment of the lubricating medium, friction between the shaft and the shaft hole will cause wear and generate noise over time. Improving the wear resistance of the shaft and shaft hole requires special wear-resistant treatment, which makes the manufacturing process more complex and relatively increases manufacturing costs. Therefore, in this invention, shaft sleeves 22 and 30 are provided in each of the shaft holes. Both shaft sleeves 22 and 30 are made of a special material that has a self-lubricating effect. Because the shaft sleeves 22 and 30 are relatively small, different materials can be used for them, which is convenient for manufacturing and processing and significantly reduces costs.

[0089] A recessed groove is formed on either the first support arm 2c or the second support arm 3c of the first connecting rod 2d and the second connecting rod 3d, respectively, and to which an impact-absorbing pad 31 is attached.

[0090] Furthermore, when the pedal 5 is in the retracted or extended position, the drive bracket 2 should have good stability, and collisions and impacts between its components should be minimized when reaching the retracted or extended position. The shock-absorbing pad 31 is attached to the inside of the first connecting rod 2d, specifically on one side facing the first support arm 2c. When the pedal 5 is in the fully extended position, the first support arm 2c compresses the shock-absorbing pad 31. At this time, the three components—the first connecting rod 2d, the shock-absorbing pad 31, and the first support arm 2c—are in close contact, achieving self-locking when the drive bracket 2 is in the extended position. The shock-absorbing pad 31 ensures that the first connecting rod 2d and the first support arm 2c are in close contact, while simultaneously reducing collisions between the first support arm 2c and the first connecting rod 2d. When the pedal is pressed down and used, the downward force of gravity is distributed to the first connecting rod 2d and the first support arm 2c, reducing the force on the first drive arm 2b and the torsional force on the drive shaft 4c of the first drive arm 2b, thereby improving the stability and lifespan of the drive mechanism 4. When the pedal 5 is retracted, the shock-absorbing pad 31 of the first connecting rod 2d is similarly compressed by the first drive arm 2b, and the three are brought into close contact, causing the drive bracket 2 to be in a different positioning state.

[0091] When pedal 5 is in the extended position, the drive bracket 2 and the driven bracket 3 should have good stability and should also have a self-locking function when they reach the extended position. Specifically, when pedal 5 is in the fully extended position, the first support arm 2c compresses the shock-absorbing pad 31. At this time, the first connecting rod 2d, the shock-absorbing pad 31, and the first support arm 2c are in close contact, achieving self-locking when the drive bracket 2 and the driven bracket 3 are in the extended position. By forming a self-locking mechanism at the corresponding position of the shock-absorbing pad 31, a self-locking state is achieved for the user to press down on the electric side pedal.

[0092] The pedal 5 has a T-shaped groove 5a into which a connecting block 33, which has a T-shaped cross-section, is attached. The front ends of the first connecting rod 2d and the second connecting rod 3d have recessed grooves that engage with the connecting block 33. The connecting block 33 has a second screw hole 26 for locking the pedal 5.

[0093] Since the first connecting rod 2d and the second connecting rod 3d are connected to the pedal 5 by a connecting block 33, the force conditions are transmitted to the outer wall of the connecting block 33 so that the force between the pedal 5 and the first connecting rod 2d and the second connecting rod 3d does not depend entirely on the bolts. Furthermore, even after employing the auxiliary connection by the connecting block 33, it can be used to detect whether the mounting positions of the drive bracket 2 and the driven bracket 3 are correct. For example, if the first connecting rod 2d of the drive bracket 2 is already connected to the pedal 5, and the groove of the second connecting rod 3d cannot engage with the connecting block 33 in the predetermined position at the exact corresponding location, it indicates that there is a deviation in the mounting of the driven bracket 3 and the drive bracket 2, and vice versa.

[0094] When pedal 5 is in the retracted position, the angle at which the upper surface of pedal 5 and the ground are tilted inward is 3 to 8 degrees, and when it is extended, the upper surface of pedal 5 and the ground are almost parallel.

[0095] In the ideal state, regardless of whether the pedal 5 is in the retracted position or the extended position, the upper surface of the pedal 5 is kept horizontal to the ground. Specifically, when the pedal 5 is in the retracted position, the force applied by the pedal 5 to the first connecting rod 2d and the second connecting rod 3d can be kept vertically downward, preventing the generation of outward horizontal force components and ensuring that the drive bracket 2 is securely retracted.

[0096] When pedal 5 is in the retracted position or the extended position, the upper surface of pedal 5 and the ground form an acute angle.

[0097] Under conditions that do not affect its use, the upper surface of pedal 5 can form a small angle with the ground when in the stowed and extended positions.

[0098] More specifically, in the retracted position of pedal 5, the angle at which the upper surface of pedal 5 tilts inward is 3 to 8 degrees, and in the extended position, the angle at which the upper surface of pedal 5 tilts inward is 0 to 5 degrees.

[0099] To ensure the reliability of pedal 5, the upper surface of pedal 5 is preferably tilted inward. If the user's soles are relatively slippery, the upper surface of pedal 5 will not tilt outward, preventing the user from slipping and falling. To ensure the aesthetic appearance of pedal 5 in its deployed state, that is, to prevent the overall appearance of the vehicle from being affected by an excessively large tilt angle, the inward tilt angle of the upper surface of pedal 5 should be as small as possible, and in this embodiment, it is preferably 0 to 5 degrees.

[0100] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of the invention. In other words, equivalent changes and modifications made in accordance with the content of the patent application for the present invention are all within the technical scope of the present invention. [Explanation of Symbols]

[0101] 1. Vehicle body 2. Drive bracket 2a, First connection base 2b, First drive arm 2c, First support arm 2d, First Connecting Rod 3. Driven bracket 3a, Second connection base 3b, Second drive arm 3c, second support arm 3D, second connecting rod 4. Drive mechanism 4a, drive motor 4b, Gearbox 4c, drive shaft 4c1, 4c2, squamous groove 5. Pedals 5a, T-shaped groove 6. Connecting ear 7, ground 8. Connecting plate 10. First shaft hole 11. Second shaft hole 12. Third shaft hole 13. Fourth shaft hole 14a, fifth shaft hole 14b, 6th axis hole 15. Seventh shaft hole 16. 8th shaft hole 18. First transmission shaft 19. Second transmission shaft 20. Third transmission shaft 21. Fourth transmission shaft 22. Shaft sleeve 23. First rock bolt 25, First screw hole 26. Second screw hole 27. First through hole 28. Angle of inclination: 3-8° 29. Rectangular fixed block 30. Shaft sleeve 31. Shock-absorbing pad 32. Angle of inclination: 0-5° 33. Connection Block

Claims

1. The electric pedal for automobiles includes a drive bracket (2), a drive mechanism (4), and a pedal (5), wherein the drive bracket (2) and the drive mechanism (4) are both mounted on the same side of the bottom of the vehicle body (1), The drive bracket (2) includes a first transmission mechanism and a first connecting rod (2d), The front end of the first connecting rod (2d) is fixedly connected to the pedal (5), The first transmission mechanism drives the deployment and retraction of the first connecting rod (2d), The drive shaft (4c) of the drive mechanism (4) is directly fixed and connected to the first transmission mechanism, and by driving the deployment and retraction of the first transmission mechanism, the first connecting rod (2d) is deployed and retracted. The first connecting rod (2d) drives the pedal (5) to move downward and outward from the vehicle body (1) when moving from the stored state to the deployed state. When the pedal (5) is in the retracted position, the angle between the upper surface of the pedal (5) and the ground (7) is 3 to 8 degrees (28). When the pedal (5) is in the extended state, the upper surface of the pedal (5) and the ground (7) are approximately parallel. The first transmission mechanism includes a first connecting base (2a), a first drive arm (2b), and a first support arm (2c), The drive shaft (4c) is fixed and connected to one end of the first drive arm (2b) by passing through the first connecting base (2a). The other end of the first drive arm (2b) is rotatably connected to the first connecting rod (2d), Both ends of the first support arm (2c) are rotatably connected to the first connecting base (2a) and the first connecting rod (2d), respectively. When the pedal (5) is in the extended state, an impact-absorbing pad (31) is attached to the surface of the first connecting rod (2d) that faces the first support arm (2c), and the pad contacts the first support arm (2c). When the pedal (5) is in the extended state, a first recess is formed on the side of the first drive arm (2b) facing the first support arm (2c) to accommodate a part of the connection portion to which the first connecting base (2a) and the first support arm (2c) are connected. When the pedal (5) is in the extended state, a second recess is formed on the side of the first support arm (2c) facing the first connecting rod (2d) to accommodate a part of the connection portion to which the first drive arm (2b) and the first connecting rod (2d) are connected. An electric pedal for automobiles characterized by the following features.

2. The drive mechanism (4) includes a drive motor (4a) attached to the bottom of the vehicle body (1), A gearbox (4b) is attached to the output terminal of the drive motor (4a). The gearbox (4b) is connected to the first transmission mechanism by a drive shaft (4c). The electric pedal for automobiles according to feature 1.

3. The first connecting rod (2d) is provided with connecting ears (6), The connecting lug (6) has two axial holes (10) and (11) perpendicular to the connecting lug (6). The axis of the first shaft hole (10) and the axis of the second shaft hole (11) are parallel. The first connecting base (2a) is provided with a connecting plate (8), The connecting plate (8) has two third shaft holes (12) and a fourth shaft hole (13) perpendicular to the connecting plate (8). The axis of the third shaft hole (12) and the axis of the fourth shaft hole (13) are parallel, The first support arm (2c) is provided with a first transmission shaft (18) fixed to one end and a second transmission shaft (19) fixed to the other end. The first transmission shaft (18) of the first support arm (2c) engages with the first shaft hole (10) of the first connecting rod (2d), The second transmission shaft (19) of the first support arm (2c) engages with the third shaft hole (12) of the first connecting seat (2a), A third transmission shaft (20) is fixedly provided at one end of the first drive arm (2b). The third transmission shaft (20) of the first drive arm (2b) engages with the second shaft hole (11) of the first connecting rod (2d), The drive shaft (4c) is fixedly connected to the other end of the first drive arm (2b) and engages with the fourth shaft hole (13) of the first connecting base (2a). The electric pedal for automobiles according to feature 2.

4. A fifth shaft hole (14a) for attaching the first transmission shaft (18) and a sixth shaft hole (14b) for attaching the second transmission shaft (19) are formed through both ends of the first support arm (2c). The axis of the fifth shaft hole (14a) and the axis of the sixth shaft hole (14b) are parallel, The first drive arm (2b) has a seventh shaft hole (15) through which a third transmission shaft (20) is attached at one end, and an eighth shaft hole (16) through which a drive shaft (4c) is attached at the other end. The axis of the seventh shaft hole (15) and the axis of the eighth shaft hole (16) are parallel. The electric pedal for automobiles according to feature 3.

5. A transmission shaft rotation device is provided at both ends of the first support arm (2c), The first drive arm (2b) is provided with a transmission shaft rotation device at one end and a drive shaft locking device at the other end. The electric pedal for automobiles according to feature 4.

6. The aforementioned transmission shaft rotation device includes a shaft sleeve (22), Both ends of the first transmission shaft (18), the second transmission shaft (19), and the third transmission shaft (20) are rotatably engaged with the shaft sleeve (22), The central portion of the first transmission shaft (18) engages with the first shaft hole (10) of the first connecting rod (2d), The central part of the second transmission shaft (19) engages with the third shaft hole (12) of the first connecting base (2a), The central portion of the third transmission shaft (20) engages with the second shaft hole (11) of the first connecting rod (2d). The electric pedal for automobiles according to claim 5.

7. The drive shaft locking device includes a first locking bolt (23) and a rectangular fixing block (29). Flat grooves (4c1, 4c2) are formed in the central part of the drive shaft (4c). One end of the first drive arm (2b), which is connected to the drive shaft (4c), has a first through hole (27) formed therein, which is perpendicular to and coaxial with the eighth shaft hole (16). The rectangular fixing block (29) is inserted into the eighth shaft hole (16) from one side of the first drive arm (2b) and engages with the flattened grooves (4c1, 4c2) of the drive shaft (4c), The rectangular fixing block (29) has a first screw hole (25) that is coaxial with it. The first lock bolt (23) is inserted into the first through hole (27) from the other side of the first drive arm (2b) and screwed into the first threaded hole (25). The electric pedal for automobiles according to claim 5.

8. A shaft sleeve (22) is provided in each of the fifth shaft hole (14a), the sixth shaft hole (14b), and the seventh shaft hole (15). A shaft sleeve (30) is also provided in the aforementioned four shaft holes (13). The electric pedal for automobiles according to claim 5.

9. Further including at least one driven bracket (3), The driven bracket (3) includes a second transmission mechanism and a second connecting rod (3d), The front end of the second connecting rod (3d) is fixedly connected to the pedal (5). The drive bracket (2) is driven by the pedal (5) to drive the second transmission mechanism so as to synchronously extend and retract the second connecting rod (3d), thereby synchronously extending and retracting the second connecting rod (3d). An electric pedal for an automobile according to any one of claims 1 to 8.

10. The driven bracket (3) has the same structure as the drive bracket (2), that is, the driven bracket (3) lacks a drive mechanism (4) and a drive shaft (4c), and instead of a drive shaft (4c), a fourth transmission shaft (21) is used, and consists of a second connecting base (3a), a second drive arm (3b), a second support arm (3c), and a second connecting rod (3d). The electric pedal for automobiles according to feature 9.

11. The pedal (5) has a T-shaped groove (5a) to which a connecting block (33) having a T-shaped cross-section is attached. The front ends of the first connecting rod (2d) and the second connecting rod (3d) are formed with grooves that engage with the connecting block (33). The connecting block (33) has a second screw hole (26) for locking the pedal (5). The electric pedal for automobiles according to feature 9.

12. When the pedal (5) is in the retracted position and the extended position, the upper surface of the pedal (5) and the ground (7) form an acute angle. The electric pedal for automobiles according to feature 9.

13. The angle at which the upper surface of the pedal (5) tilts inward is 0 to 5 degrees (32). The electric pedal for automobiles according to feature 9.

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