CN219651101U - Automobile electric pedal - Google Patents

Abstract

The utility model relates to an automobile electric pedal. The vehicle body comprises a driving bracket, a driving mechanism and a pedal, wherein the driving bracket and the driving mechanism are arranged on the same side of the bottom of a vehicle body; the driving bracket comprises a first transmission mechanism and a first connecting rod, and the front end of the first connecting rod is fixedly connected with the pedal; the first transmission mechanism drives the first connecting rod to be unfolded and retracted; the driving shaft of the driving mechanism is directly and fixedly connected with the first transmission mechanism and drives the first transmission mechanism to be unfolded and retracted so as to enable the first connecting rod to be unfolded and retracted; when the first connecting rod is unfolded, the pedal moves to the lower part of the outer side of the vehicle body; the included angle between the upper surface of the pedal and the ground is 3-8 degrees when the pedal is retracted; when unfolded, the upper surface of the device is basically parallel to the ground. The driving shaft of the driving mechanism is directly connected with the first transmission mechanism of the driving bracket, so that the traditional gear transmission mechanism is omitted, the manufacturing cost is reduced, the generation of abnormal noise is reduced, the included angle between the upper surface of the pedal and the ground is 3-8 degrees in the retracted state, the horizontal outward component force is not generated, and the pedal can be ensured to be retracted in position.

Description

Automobile electric pedal

Technical Field

The utility model relates to the technical field of automobile pedals, in particular to an automobile electric pedal.

Background

The vehicle step is classified into a stationary step and a retractable step, and as the name suggests, the stationary step cannot realize the function of expanding the step, and the retractable step always expands the side wall of the vehicle body in the mounted state, and the retractable step has the function of retracting the step in the non-use state and expanding the step in the use state because of the retractable support structure. The pedal can be retracted, and the lower end of the side part of the vehicle body can not protrude out of the vehicle body, so that the vehicle can not collide with the obstacle when passing through a narrow road section, and the damage of the pedal is avoided.

However, the retractable pedal in the prior art has a plurality of defects and shortcomings due to the unreasonable design of the retractable supporting structure:

1. when the pedal is in the retracted state, the driven support structure falls down or loosens due to the fact that the driven support structure is not tight.

2. The motor output end and the driving shaft are in complex gear transmission, the manufacturing precision is high, the manufacturing precision is difficult to ensure, the processing cost of the gear transmission mechanism is high, and abnormal noise is easy to occur in the gear transmission.

3. The drive shaft and the drive arm are not firmly connected to generate relative sliding (most of the drive shafts rotate relative to the drive arm), so that abnormal sound and noise are generated.

4. The transmission shaft and the connecting piece are fixed by adopting a locking bolt, and because the shaft is in clearance fit with the shaft hole, the transmission shaft is not resistant to vibration and impact and generates deformation and fracture.

5. The transmission shaft and the corresponding shaft hole are mostly iron-plated copper shaft sleeves, the lubrication effect is poor after long-term abrasion, and abnormal sound is generated along with continuous loss of the lubrication effect.

6. The shock pad is installed between drive arm and support arm, and the torsion that the drive shaft received is big, and actuating mechanism's stability and life-span are end.

U.S. patent specification (US 10649483B 2) discloses an automotive electric pedal which has these drawbacks as described above and needs to be improved.

Disclosure of Invention

The utility model aims to provide an automobile electric pedal, which solves the technical problems of the existing automobile electric pedal, wherein a driving shaft of a driving mechanism of the electric pedal is directly connected with a first transmission mechanism of a driving bracket, so that the traditional gear transmission mechanism is omitted, the manufacturing cost is reduced, the generation of abnormal noise is reduced, the included angle between the upper surface of the pedal and the ground is 3-8 degrees in a retracted state, the horizontal outward component force is not generated, and the pedal can be ensured to be retracted in place.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides an automobile electric pedal, includes an initiative support, a actuating mechanism and a step, initiative support and actuating mechanism are all installed at the automobile body bottom homonymy, its characterized in that: the driving bracket comprises a first transmission mechanism and a first connecting rod, and the front end of the first connecting rod is fixedly connected with the pedal; the first transmission mechanism drives the first connecting rod to be unfolded and retracted;

the driving shaft of the driving mechanism is directly and fixedly connected with the first transmission mechanism and drives the first transmission mechanism to be unfolded and retracted so as to enable the first connecting rod to be unfolded and retracted; when the first connecting rod moves from the retracted state to the unfolding state, the pedal is driven to move downwards outside the vehicle body; wherein, the included angle between the upper surface of the pedal in the retracted state and the ground is 3-8 degrees; in the deployed state, the upper surface is substantially parallel to the ground.

The automobile electric pedal is characterized in that: the driving mechanism comprises a driving motor arranged at the bottom of the vehicle body, a gearbox is arranged at the output end of the driving motor, and the gearbox is connected with the first transmission mechanism through a driving shaft.

The automobile electric pedal is characterized in that: the first transmission mechanism comprises a first connection base, a first driving arm and a first supporting arm; the driving shaft penetrates through the first connecting base and is fixedly connected with one end of the first driving arm; the other end of the first driving arm is rotationally connected with the first connecting rod; and two ends of the first supporting arm are respectively and rotatably connected with the first connecting base and the first connecting rod.

The automobile electric pedal is characterized in that: the first connecting rod is provided with a connecting lug, the connecting lug is provided with a first shaft hole and a second shaft hole which are perpendicular to the connecting lug, and the axis of the first shaft hole is parallel to the axis of the second shaft hole; the first connecting base is provided with a connecting plate, the connecting plate is provided with a third shaft hole and a fourth shaft hole which are perpendicular to the connecting plate, and the axis of the third shaft hole is parallel to the axis of the fourth shaft hole;

one end of the first supporting arm is fixedly provided with a first transmission shaft, and the other end of the first supporting arm is fixedly provided with a second transmission shaft;

a first transmission shaft on the first supporting arm is matched with a first shaft hole on the first connecting rod,

the second transmission shaft on the first support arm is matched with a third shaft hole on the first connection base;

One end of the first driving arm is fixedly provided with a third transmission shaft, and the third transmission shaft on the first driving arm is matched with a second shaft hole on the first connecting rod;

the driving shaft is fixedly connected with the other end of the first driving arm, and the driving shaft is matched with a fourth shaft hole on the first connecting base.

The automobile electric pedal is characterized in that: the two ends of the first supporting arm are penetrated and provided with a fifth shaft hole for installing the first transmission shaft and a sixth shaft hole for installing the second transmission shaft, the axis of the fifth shaft hole is parallel to the axis of the sixth shaft hole, one end of the first driving arm is penetrated and provided with a seventh shaft hole for installing the third transmission shaft, the other end of the first driving arm is penetrated and provided with an eighth shaft hole for installing the driving shaft, and the axis of the seventh shaft hole is parallel to the axis of the eighth shaft hole.

The automobile electric pedal is characterized in that: the two ends of the first supporting arm are respectively provided with a transmission shaft rotating device; one end of the first driving arm is provided with a transmission shaft rotating device, and the other end of the first driving arm is provided with a driving shaft locking device.

The automobile electric pedal is characterized in that: the transmission shaft rotating device comprises a shaft sleeve, two ends of the first transmission shaft, the second transmission shaft and the third transmission shaft are in rotary fit with the shaft sleeve, the first transmission shaft middle section is in interference lock fit with a first shaft hole of the first connecting base, the second transmission shaft middle section is in interference lock fit with a third shaft hole of the first connecting base, and the third transmission shaft middle section is in interference lock fit with a second shaft hole of the first connecting base.

The automobile electric pedal is characterized in that: the driving shaft locking device comprises a first locking bolt and a square fixing block, a flat groove is formed in the middle section of the driving shaft, one end of the first driving arm, which is connected with the driving shaft, is provided with a first through hole perpendicular to the eighth shaft hole and coaxial with the eighth shaft hole, the square fixing block is inserted into the eighth shaft hole from one side of the first driving arm and is matched with the flat groove in the driving shaft, a first threaded hole is formed in the square fixing block and coaxial with the square fixing block, and the first locking bolt is inserted into the first through hole from the other side of the first driving arm and is in threaded fit with the first threaded hole.

The automobile electric pedal is characterized in that: shaft sleeves are arranged in the fifth shaft hole, the sixth shaft hole and the seventh shaft hole, and a second shaft sleeve is arranged in the fourth shaft hole.

The automobile electric pedal is characterized in that: the pedal comprises a pedal body, a pedal rod and a pedal rod, wherein the pedal rod is fixedly connected with the pedal body; the driving support drives the second transmission mechanism to synchronously extend and retract through the pedal, so that the second connecting rod can synchronously extend and retract.

The automobile electric pedal is characterized in that: the structure of the driven bracket is consistent with that of the driving bracket, namely the driven bracket is composed of a second connecting base, a second driving arm, a second supporting arm and a second connecting rod, except that a driving mechanism and a driving shaft are not arranged, and the driving shaft is replaced by a fourth driving shaft.

The automobile electric pedal is characterized in that: and one sides of the first connecting rod and the second connecting rod, which face the first supporting arm and the second supporting arm, are respectively provided with a sinking groove, and shock pads are arranged in the sinking grooves.

The automobile electric pedal is characterized in that: be provided with T type groove on the step, install the connecting block that the cross-section is the T style of calligraphy in this T type inslot, be equipped with connecting block complex recess in the front end of first connecting rod and second connecting rod, be equipped with the second screw hole that is used for locking the step on the connecting block.

The automobile electric pedal is characterized in that: the step is disposed at an acute angle between its upper surface and the ground when in the retracted position and the extended position.

The automobile electric pedal is characterized in that: the upper surface of the pedal is inclined inwards by an angle of 0-5 degrees.

The utility model has the technical scheme, so the utility model has the following advantages:

1. the utility model has a special supporting structure, ensures that the retracted state and the unfolding state of the pedal are in a horizontal or similar horizontal state, ensures that the pedal can be positioned, and avoids the pedal unfolding in the running process of the vehicle, thereby influencing the trafficability of the vehicle body and generating danger. In particular, the pedal is retracted in a state in which the upper surface of the pedal is at an angle of 3-8 degrees to the ground, so that no horizontal outward component force is generated, and the pedal can be ensured to be retracted in position.

2. The output shaft of the driving mechanism is a driving shaft, replaces a transmission gear transmission mechanism, and has a good self-locking function.

3. According to the utility model, the driving shaft and the first driving arm are locked through the first locking bolt, so that the front surface of the square fixing block is tightly pressed against the flat groove on the driving shaft, and the connection firmness between the driving shaft and the first driving arm is ensured.

4. In the utility model, all the transmission shafts are fixedly matched with the corresponding support arms or driving arms through interference locking, so that the transmission shafts are integrated, and the transmission shafts are firmer and more shock-resistant than the locking bolts which are fixed in the shaft holes of the corresponding support arms or driving arms.

5. According to the utility model, the shaft sleeves made of special materials are arranged among all the transmission shafts, the driving shafts and the shaft holes, and have good self-lubricating effect, so that abnormal sound caused by poor lubricating effect after long-term use is avoided.

6. According to the utility model, the first connecting rod, the second connecting rod and the pedal are fixed through the connecting blocks, the pedal is provided with the T-shaped groove for installing the connecting blocks, the front ends of the first connecting rod and the second connecting rod are respectively provided with the grooves matched with the corresponding connecting blocks, so that the stress between the pedal and the first connecting rod and the stress between the pedal and the second connecting rod are not completely transferred to the outer wall of the connecting blocks by bolts, and the auxiliary connection of the connecting blocks can be adopted to detect whether the installation positions of the driving support and the driven support are correct.

Drawings

Fig. 1 is a schematic view of the active stent in a retracted state of the present utility model.

Fig. 2 is a schematic view showing an expanded state of the active stent in the present utility model.

Fig. 3 is a schematic perspective exploded view of the electric pedal for the automobile according to the present utility model.

Fig. 4 is a schematic perspective exploded view of the active bracket according to the present utility model.

Fig. 5 is a schematic perspective exploded view of the driven bracket in the present utility model.

Fig. 6 is an enlarged schematic view at a in fig. 2.

Fig. 7 is a schematic view of the movement of the active stent from the retracted position to the deployed position in accordance with the present utility model.

In the figure: 1-a vehicle body; 2-an active stent; 2 a-a first connection mount; 2 b-a first drive arm; 2 c-a first support arm; 2 d-a first link; 3-a driven bracket; 3 a-a second connection mount; 3 b-a second drive arm; 3 c-a second support arm; 3 d-a second link; 4-a driving mechanism; 4 a-a drive motor; 4 b-gearbox; 4 c-a drive shaft; 4c1, 4c 2-flat grooves; 5-stepping; a 5 a-T-shaped groove; 6-connecting lugs; 7-the ground; 8-connecting plates; 10-a first shaft hole; 11-a second shaft hole; 12-a third shaft hole; 13-fourth shaft holes; 14 a-a fifth shaft hole; 14 b-a sixth shaft hole; 15-seventh shaft holes; 16-eighth shaft holes; 18-a first drive shaft; 19-a second drive shaft; 20-a third transmission shaft; 21-a fourth drive shaft; 22-shaft sleeve; 23-a first locking bolt; 25-a first threaded hole; 26-a second threaded hole; 27-a first through hole; 28-the pedal retracted state with an angle between its upper surface and the ground; 29-square fixed blocks; 30-a second sleeve; 31-a shock pad; 32-the upper surface of the pedal is inclined inwardly at a positive angle; 33-connecting block.

Detailed Description

Referring to fig. 1-7, the utility model discloses an automobile electric pedal. As shown in the figure: it includes a initiative support 2, a actuating mechanism 4 and a step 5, initiative support 2 and actuating mechanism 4 all install at automobile body 1 bottom homonymy, its characterized in that: the driving bracket 2 comprises a first transmission mechanism and a first connecting rod 2d, and the front end of the first connecting rod 2d is fixedly connected with a pedal 5; the first transmission mechanism drives the first connecting rod 2d to be unfolded and retracted; the driving shaft 4c of the driving mechanism 4 is directly fixedly connected with the first transmission mechanism and drives the first transmission mechanism to be unfolded and retracted so as to enable the first connecting rod 2d to be unfolded and retracted; when the first connecting rod 2d moves from the retracted state to the extended state, the pedal 5 is driven to move downwards outside the vehicle body 1; wherein, the included angle 28 between the upper surface of the pedal 5 and the ground 7 in the retraction state is 3-8 degrees; in the unfolded state, its upper surface is substantially parallel to the ground 7.

In the present utility model, as shown in fig. 1, 2 and 4, the driving mechanism 4 includes a driving motor 4a mounted at the bottom of the vehicle body 1, a gearbox 4b is mounted at the output end of the driving motor 4a, and the gearbox 4b is connected with the first transmission mechanism through a driving shaft 4 c.

In the utility model, the first transmission mechanism comprises a first connection base 2a, a first driving arm 2b and a first supporting arm 2c; the driving shaft 4c penetrates through the first connecting base 2a and is fixedly connected with one end of the first driving arm 2 b; the other end of the first driving arm 2b is rotationally connected with a first connecting rod 2 d; the two ends of the first supporting arm 2c are respectively and rotatably connected with the first connecting base 2a and the first connecting rod 2 d.

In the utility model, the first connecting rod 2d is provided with a connecting lug 6, the connecting lug 6 is provided with a first shaft hole 10 and a second shaft hole 11 which are perpendicular to the connecting lug 6, and the axis of the first shaft hole 10 is parallel to the axis of the second shaft hole 11; the first connecting base 2a is provided with a connecting plate 8, the connecting plate 8 is provided with a third shaft hole 12 and a fourth shaft hole 13 which are perpendicular to the connecting plate 8, and the axis of the third shaft hole 12 is parallel to the axis of the fourth shaft hole 13; a first transmission shaft 18 is fixedly arranged at one end of the first supporting arm 2c, and a second transmission shaft 19 is fixedly arranged at the other end of the first supporting arm; the first transmission shaft 18 on the first support arm 2c is matched with the first shaft hole 10 on the first connecting rod 2d, and the second transmission shaft 19 on the first support arm 2c is matched with the third shaft hole 12 on the first connecting base 2 a; one end of the first driving arm 2b is fixedly provided with a third transmission shaft 20, and the third transmission shaft 20 on the first driving arm 2b is matched with the second shaft hole 11 on the first connecting rod 2 d; the driving shaft 4c is fixedly connected with the other end of the first driving arm 2b, and the driving shaft 4c is matched with a fourth shaft hole 13 on the first connecting base 2 a.

In the present utility model, the two ends of the first supporting arm 2c are provided with a fifth shaft hole 14a for installing the first driving shaft 18 and a sixth shaft hole 14b for installing the second driving shaft 19 in a penetrating way, the axis of the fifth shaft hole 14a is parallel to the axis of the sixth shaft hole 14b, one end of the first driving arm 2b is provided with a seventh shaft hole 15 for installing the third driving shaft 20 in a penetrating way, the other end of the first driving arm 2b is provided with an eighth shaft hole 16 for installing the driving shaft 4c in a penetrating way, and the axis of the seventh shaft hole 15 is parallel to the axis of the eighth shaft hole 16.

In the utility model, two ends of the first supporting arm 2c are respectively provided with a transmission shaft rotating device; one end of the first driving arm 2b is provided with a transmission shaft rotating device, and the other end is provided with a driving shaft locking device.

In the utility model, the transmission shaft rotating device comprises a shaft sleeve 22, two ends of the first transmission shaft 18, the second transmission shaft 19 and the third transmission shaft 20 are in rotating fit with the shaft sleeve 22, the middle section of the first transmission shaft 18 is in interference locking fit with the first shaft hole 10 of the first connecting rod 2d, the middle section of the second transmission shaft 19 is in interference locking fit with the third shaft hole 12 of the first connecting base 2a, and the middle section of the third transmission shaft 20 is in interference locking fit with the second shaft hole 11 of the first connecting rod 2 d.

In the utility model, the driving shaft locking device comprises a first locking bolt 23 and a square fixing block 29, wherein flat grooves 4c1 and 4c2 are arranged in the middle section of the driving shaft 4c, a first through hole 27 which is perpendicular to the eighth shaft hole 16 and coaxial with the first shaft hole 27 is formed in one end, connected with the driving shaft 4c, of the first driving arm 2b, the square fixing block 29 is inserted into the eighth shaft hole 16 from one side of the first driving arm 2b, the square fixing block 29 is matched with the flat grooves 4c1 and 4c2 on the driving shaft 4c, the square fixing block 29 is provided with a first threaded hole 25 coaxial with the square fixing block, and the first locking bolt 23 is inserted into the first through hole 27 from the other side of the first driving arm 2b and is in threaded fit with the first threaded hole 25.

In the present utility model, the fifth shaft hole 14a, the sixth shaft hole 14b and the seventh shaft hole 15 are each provided with a shaft sleeve 22, and the fourth shaft hole 13 is also provided with a shaft sleeve second shaft sleeve 30.

As shown in fig. 3 and 5, the electric pedal of the automobile further comprises at least one driven bracket 3, wherein the driven bracket 3 comprises a second transmission mechanism and a second connecting rod 3d, and the front end of the second connecting rod 3d is fixedly connected with the pedal 5; the driving bracket 2 drives the second transmission mechanism to synchronously extend and retract through the pedal 5 so as to synchronously extend and retract the second connecting rod 3 d.

Referring to fig. 4 specifically, the structure of the driven bracket 3 is identical to that of the driving bracket 2, that is, the driven bracket 3 is composed of a second connection base 3a, a second driving arm 3b, a second supporting arm 3c and a second connecting rod 3d, except that the driving mechanism 4 and the driving shaft 4c are not provided, and the driving shaft 4c is replaced by a fourth driving shaft 21.

Referring to fig. 6, the sides of the first connecting rod 2d and the second connecting rod 3d facing the first supporting arm 2c and the second supporting arm 3c are respectively provided with a sinking groove, and a shock pad 31 is installed in the sinking groove.

Referring to fig. 3, 4 and 5, in the present utility model, the pedal 5 is provided with a T-shaped slot 5a, a connecting block 33 with a T-shaped cross section is installed in the T-shaped slot 5a, grooves matching with the connecting block 33 are provided at the front ends of the first connecting rod 2d and the second connecting rod 3d, and a second threaded hole 26 for locking the pedal 5 is provided on the connecting block 33.

Preferably, the step 5 is disposed at an acute angle between its upper surface and the ground 7 in the retracted position and in the extended position.

Preferably, the upper surface of the step 5 is inclined inward at an angle 32 of 0 to 5 degrees.

As one embodiment of the electric automobile pedal, the utility model has a special supporting structure design, wherein the driving bracket 2 is directly connected with the driving shaft 4c of the driving mechanism 4, namely, the motor output shaft is the driving shaft 4c, thereby replacing a gear transmission mechanism, solving the defect that the pedal 5 is driven to zoom by the gear transmission mechanism to easily generate abnormal sound in transmission, and greatly reducing the manufacturing cost of the whole automobile pedal due to omitting a complex gear transmission mechanism; the driving motor 4a of the driving mechanism 4 is provided with the gearbox 4b, has a good self-locking function, is matched with a special supporting structure, ensures that the pedal 5 is always in a horizontal or similar horizontal position in the unfolding and retracting processes, particularly when in the retracting position, the included angle between the upper surface of the pedal 5 and the ground is 3-8 degrees, and cannot generate horizontal outward component force, namely the condition that the pedal 5 is not tightly folded due to the horizontal outward component force in the traditional retractable pedal 5 is avoided, and the problem that the pedal 5 is unfolded or the trafficability of a vehicle body is influenced due to the fact that the pedal 5 is not tightly folded in the running process of the vehicle is avoided, so that danger is generated.

In the utility model, the fixed connection between the driving shaft 4c and the first driving arm 2b is firm, specifically, the driving shaft locking device is matched with flat grooves 4c1 and 4c2 arranged on the driving shaft 4c and locked by the first locking bolt 23, so that the front surface of the square fixing block 29 is tightly pressed against the flat grooves 4c1 and 4c2 on the driving shaft 4c, the connection firmness between the driving shaft 4c and the first driving arm 2b is ensured, and the relative sliding caused by the loose connection between the driving shaft 4c and the first driving arm 2b in the long-term use process is effectively avoided; all the transmission shafts are fixed with the corresponding support arms or driving arms through the first locking bolts 23, so that the transmission shafts are integrated, and the transmission shafts are firmer than the transmission shafts are simply tightly matched in shaft holes on the corresponding support arms or driving arms; the shaft sleeve 22 and the second shaft sleeve 30 which are made of special materials are arranged between all the transmission shafts and the driving shafts 4c and the shaft holes, and the shaft sleeve 20 and the second shaft sleeve 30 have good self-lubricating effect, so that abnormal sound caused by poor lubricating effect after long-term use is avoided; the first link 2d is connected with the pedal 5 through the connecting block 33, so that the stress between the pedal 5 and the first link 2d is not completely applied by the bolts, and the stress condition is transferred to the outer wall of the connecting block 33.

In addition, the upper surface of the pedal 5 in the retracted state is inclined at an angle of 3-8 degrees inwards to the ground, so that broken stone sundries splashed in the running process of the vehicle are prevented from being remained on the pedal, and sundries are arranged on the pedal when the pedal is unfolded, and therefore usability of the pedal is affected, and danger is generated when the pedal is stepped; the upper surface of the pedal 5 is inclined at an angle of 3-8 degrees inwards to the ground in the retraction state, the gap between the pedal and the vehicle body is reduced, the pedal 5 is beneficial to hiding the pedal in the retraction state, and the visual sense of hiding the pedal is better.

According to the utility model, a special supporting structure design is adopted, the driving bracket 2 is connected with the driving mechanism 4, the driving mechanism 4 drives the driving bracket 2 to retract or expand, as shown in a state in fig. 1, the first driving arm 2b is attached to the first supporting arm 2c, at the moment, the pedal 5 arranged at the front end of the first connecting rod 2d is in a horizontal state or forms a small included angle with the horizontal direction, the stress of the first connecting rod 2d is the self gravity and the vertical downward force given by the pedal 5, the stress is the vertical direction, and when the driving bracket 2 is retracted in place, the influence of the self-locking force of the gearbox 4b is caused, and the force of pulling outwards is not very small enough to overcome the self-locking force of the gearbox 4b, so that the risk of expanding or expanding the driving bracket 2 to a certain degree does not occur, and the fit clearance between the pedal 5 and the vehicle body 1 is basically consistent.

In the utility model, the first connecting base 2a, the first connecting rod 2d, the first driving arm 2b and the first supporting arm 2c form a stable four-bar mechanism, and the stable unfolding and the stable folding of the first connecting rod 2d can be realized under the driving of the driving mechanism 4, so that the posture of the pedal 5 in the folding and unfolding state is ensured, namely the upper surface of the pedal 5 is ensured to be basically parallel to the ground, and further, the force exerted by the pedal 5 on the first connecting rod 2d in the folding or unfolding state is ensured to be vertically downward or basically vertically downward, and particularly, the phenomenon that the active bracket 2 cannot be folded in the folding state due to the generation of a component force of the horizontal outside is avoided.

In the utility model, the two ends of the first supporting arm 2c are respectively provided with a transmission shaft rotating device, one end of the first driving arm 2b is provided with a transmission shaft rotating device, and the other end is provided with a driving shaft locking device.

It should be emphasized that, since the driving shaft 4c adopts a detachable mounting manner and a corresponding driving arm, the mounting firmness of the driving shaft 4c directly affects the stability of the motion of the driving bracket 2, and abnormal noise may be caused by the unstable mounting. Accordingly, the drive shaft 4c locking means is provided for the drive shaft 4c in the present utility model.

In the utility model, the torque borne by the driving shaft 4c after being fixedly connected with the first driving arm 2b is far greater than that of other driving shafts, so that the driving shaft 4c locking device has a firmer locking function relative to the driving shaft locking device, wherein the square fixing block 29 and the first locking bolt 23 are respectively arranged on two sides of the first driving arm 2b, and the front surface on the square fixing block 29 and the flat grooves 4c1 and 4c2 on the driving shaft 4c can be pressed tightly by locking the first locking bolt 23, so that the driving shaft 4c and the first driving arm 2b are fixed more firmly.

In the present utility model, the fifth shaft hole 14a, the sixth shaft hole 14b, and the seventh shaft hole 15 are each provided with the boss 22, and the fourth shaft hole 13 is also provided with the second boss 30.

When the drive shaft 4c and each drive shaft are operated in conjunction with a corresponding shaft bore, a lubricating medium is typically required between the shaft and the bore interior for lubrication. Because the hole arm and the shaft are both made of metal materials, under the condition of no continuous lubrication medium supplement, the shaft and the shaft hole can be abraded due to long-term friction and abnormal sound can be generated, if special abrasion-resistant treatment is needed for improving the abrasion resistance of the shaft and the shaft hole, the manufacturing process is more complex, and the manufacturing cost is relatively increased. Therefore, the shaft sleeve 22 and the second shaft sleeve 30 are respectively arranged in all shaft holes, the shaft sleeve 22 and the second shaft sleeve 30 are made of special materials with self-lubricating function, and because the parts of the shaft sleeve 22 and the second shaft sleeve 30 are relatively smaller, the parts can be made of different materials with other parts, the manufacturing and the processing are easy, and the cost is reduced greatly.

In the present utility model, a sinking groove is provided on the side of the first connecting rod 2d and the second connecting rod 3d facing the first supporting arm 2c and the second supporting arm 3c, and a shock pad 31 is installed in the sinking groove.

The active bracket 2 should have good stability when the step 5 stays at the retracted position or the extended position, and should minimize collision and impact between the components when reaching the retracted position or the extended position. The shock pad 31 is mounted on the inner side of the first link 2d, specifically, toward the side of the first support arm 2 c. When the pedal 5 is in the fully-unfolded position, the first supporting arm 2C compresses the shock pad 31, at the moment, the first connecting rod 2d, the shock pad 31 and the first supporting arm 2C are tightly attached, so that self-locking is achieved when the driving bracket 2 is in the unfolded positioning state, the shock pad 31 ensures that the first connecting rod 2d and the first supporting arm 2C are tightly attached, meanwhile, collision between the first supporting arm 2C and the first connecting rod 2d is reduced, when the pedal is used, downward stepping gravity is decomposed into the first connecting rod 2d and the first supporting arm 2C to bear, the stress of the first driving arm 2b is reduced, and torsion born by the driving shaft 4C of the first driving arm 2b is reduced, so that the stability and the service life of the driving mechanism 4 are improved. When the pedal 5 is retracted, the shock pad 31 on the first link 2d is compressed by the first driving arm 2b, and the three are tightly attached, so that the driving bracket 2 is in another positioning state.

The driving support 2 should have good stability when the pedal 5 is in the unfolded position, and should have a self-locking function when reaching the unfolded position, specifically, when the pedal 5 is in the fully unfolded position, the first support arm 2c compresses the shock pad 31, and at this time, the first connecting rod 2d, the shock pad 31 and the first support arm 2c are tightly attached, so that the driving support 2 and the driven support 3 achieve self-locking when being in the unfolded positioning state, a self-locking mechanism is formed at the corresponding position of the shock pad 31, and the self-locking state is realized for a user to tread the electric side.

In the utility model, a T-shaped groove 5a is arranged on a pedal 5, a connecting block 33 with a T-shaped section is arranged in the T-shaped groove 5a, grooves matched with the connecting block 33 are arranged at the front ends of a first connecting rod 2d and a second connecting rod 3d, and a second threaded hole 26 for locking the pedal 5 is arranged on the connecting block 33.

The first link 2d is connected with the pedal 5 through the connecting block 33, so that the stress between the pedal 5 and the first link 2d is not completely applied by the bolts, and the stress condition is transferred to the outer wall of the connecting block 33.

The pedal 5 has an upper surface inclined at an angle of between 3 and 8 degrees inwardly to the ground in the retracted state and substantially parallel to the ground in the extended state.

Ideally, the upper surface of the pedal 5 is kept horizontal to the ground both in the retracted position and in the extended position, and specifically, the force applied to the first link 2d by the pedal 5 when retracted externally can be kept vertically downward without generating an outward horizontal component force, so as to ensure tightening of the active bracket 2.

Preferably, the foot rest 5 is at an acute angle between its upper surface and the ground in the retracted and extended positions.

The upper surface of the step 5 may be at a small angle to the ground in the retracted and extended positions without affecting use.

More specifically, in the retracted position, the upper surface of the step 5 is inclined inward by an angle of between 3 and 8 degrees, and in the extended position, the upper surface of the step 5 is inclined inward by an angle of between 0 and 5 degrees.

In order to ensure the reliability of the step 5, the upper surface of the step 5 is preferably inclined inwardly, so that the upper surface of the step 5 does not slip due to the inclined outwardly of the foot when the sole of the user is slippery, and in order to ensure the aesthetic appearance of the unfolded state of the step 5, that is, the inclined angle of the step 5 does not affect the appearance of the whole vehicle due to excessive increase, the inclined angle of the upper surface of the step 5 should be as small as possible, and in this embodiment, it is preferably between 0 and 5 degrees.

In another embodiment of the utility model, the driving support 2 is directly connected with the driving shaft 4c of the driving mechanism 4, namely, the motor output shaft is the driving shaft 4c, so that the gear transmission mechanism is replaced, the defect that abnormal sound is easy to occur when the pedal 5 is driven to zoom by the gear transmission mechanism is overcome, and the manufacturing cost of the whole automobile pedal 5 is greatly reduced due to the fact that a complex gear transmission mechanism is omitted; the driving motor 4a of the driving mechanism 4 is provided with the gearbox 4b, has a good self-locking function, is matched with a special supporting structure, ensures that the pedal is always in a horizontal or similar horizontal position in the unfolding and retracting processes, and particularly when the pedal is in the horizontal position in the retracting position, the acting force applied to the supporting structure by the self weight of the pedal cannot generate horizontal outward component force, namely the condition that the pedal 5 is not tightly folded due to the horizontal outward component force in the traditional retractable pedal 5 cannot occur, and the pedal 5 is unfolded due to the fact that the pedal is not tightly folded in the running process of an automobile, so that the trafficability of the automobile body is affected, and danger is avoided.

The driving shaft 4c is firmly connected with the first driving arm 2b, specifically, the driving shaft locking device is matched with flat grooves 4c1 and 4c2 arranged on the driving shaft 4c and locked by the first locking bolt 23, so that the front surface of the square fixing block 29 is tightly pressed against the flat grooves 4c1 and 4c2 on the driving shaft 4c, the connection firmness between the driving shaft 4c and the first driving arm 2b is ensured, and the relative sliding caused by loose connection between the driving shaft 4c and the first driving arm 2b in the long-term use process is effectively avoided; all the transmission shafts are fixed with the corresponding support arms or driving arms through the first locking bolts 23, so that the transmission shafts are integrated, and the transmission shafts are firmer than the transmission shafts are simply tightly matched in shaft holes on the corresponding support arms or driving arms; all transmission shafts, the shaft sleeve 22 and the second shaft sleeve 30 which are made of special materials are respectively arranged between the transmission shafts, the driving shafts 4c and the shaft holes, and the shaft sleeve 22 and the second shaft sleeve 30 have good self-lubricating effect, so that abnormal sound caused by poor lubricating effect after long-term use is avoided; the first connecting rod 2d and the second connecting rod 3d are connected with the pedal 5 through the connecting block 33, so that the stress between the pedal 5 and the first connecting rod 2d and the second connecting rod is not completely applied by bolts, the stress condition is transferred to the outer wall of the connecting block 33, and after the auxiliary connection by adopting the connecting block 33, whether the installation positions of the driving support 2 and the driven support 3 are correct or not can be detected, for example, the first connecting rod 2d on the driving support 2 is connected with the pedal 5, if the groove on the second connecting rod 3d cannot be exactly matched with the connecting block 33 at the corresponding position, the installation deviation of the driven support 3 and the driving support 2 is indicated, and vice versa.

The embodiment also comprises at least one driven bracket 3, wherein the driven bracket 3 comprises a second transmission mechanism and a second connecting rod 3d, and the front end of the second connecting rod 3d is fixedly connected with a pedal 5; the driving bracket 2 drives the second transmission mechanism to synchronously expand and retract through the pedal 5 so as to synchronously expand and retract the second connecting rod 3 d.

It should be noted that, the present utility model adopts a special support structure design, namely a driving support 2 and a driven support 3, wherein the driving support 2 is connected with a driving mechanism 4, the driving mechanism 4 drives the driving support 2 to retract or expand, so as to drive the driven support 3 to synchronously act relative to the driving support 2 through a pedal 5, as shown in the state of fig. 1, taking the driving support 2 as an example: the first driving arm 2b is attached to the first supporting arm 2c, at this time, the pedal arranged at the front end of the first connecting rod 2d is in a horizontal state or has a small included angle with the horizontal direction, the stress of the first connecting rod 2d is the gravity of the first connecting rod and the force in the vertical downward direction given by the pedal 5, the stress is in the vertical direction, after the driving bracket 2 is retracted in place, the driven bracket 3 is also retracted in place under the action of the traction force of the pedal, and under the influence of the self-locking force of the gearbox 4b, the self-locking force of the gearbox 4b is not overcome because the force pulled outwards or the pulling force is very small, the risk that the driving bracket 2 and the driven bracket 3 are unfolded or are unfolded to a certain degree does not occur, and the fit clearance between the pedal 5 and the vehicle body 1 is basically consistent;

The number of driven brackets 3 is determined according to the length of the step 5 in an actual vehicle model, and generally, when the step 5 is relatively long, a double-support structure of one driving bracket 2 and one driven bracket 3 may be adopted, or a multiple-support structure of one driving bracket 2 and a plurality of driven brackets 3 may be adopted.

The driving mechanism 4 comprises a driving motor 4a arranged at the bottom of the vehicle body 1, a gearbox 4b is arranged at the output end of the driving motor 4a, and a driving shaft 4c of the gearbox 4b is connected with the first transmission mechanism.

The driving shaft 4c of the gearbox 4b is directly connected with the first transmission mechanism, so that a complex gear transmission mechanism is omitted, and the manufacturing cost is reduced.

The first transmission mechanism comprises a first connecting base 2a, a first driving arm 2b and a first supporting arm 2c; the driving shaft 4c penetrates through the first connecting base and is fixedly connected with one end of the first driving arm 2 b; the other end of the first driving arm 2b is rotatably connected with the first connecting rod 2 d; two ends of the first supporting arm 2c are respectively and rotatably connected with the first connecting base 2a and the first connecting rod 2 d; the second transmission mechanism comprises a second connecting base 3a, a second driving arm 3b and a second supporting arm 3c, and two ends of the second driving arm 3b are respectively and rotatably connected with the second connecting base 3a and a second connecting rod 3 d; both ends of the second supporting arm 3c are respectively rotatably connected with the second connecting base 3a and the second connecting rod 3 d.

The first connecting rod 2d and the second connecting rod 3d are respectively provided with a connecting lug 6, the connecting lugs 6 are provided with a first shaft hole 10 and a second shaft hole 11 which are perpendicular to the connecting lugs 6, and the axis of the first shaft hole 10 is parallel to the axis of the second shaft hole 11; the first connecting base 2a and the second connecting base 3a are respectively provided with a connecting plate 8, the connecting plates 8 are provided with a third shaft hole 12 and a fourth shaft hole 13 which are perpendicular to the connecting plates 8, and the axes of the third shaft hole 12 and the fourth shaft hole 13 are parallel; one end of each of the first support arm 2c and the second support arm 3c is fixedly provided with a first transmission shaft 18, the other end of each of the first support arm 2c is fixedly provided with a second transmission shaft 19, the first transmission shaft 18 on the first support arm 2c is matched with the first shaft hole 10 on the first connecting base, the second transmission shaft 19 on the first support arm 2c is matched with the third shaft hole 12 on the first connecting base, the first transmission shaft 18 on the second support arm 3c is matched with the first shaft hole 10 on the second connecting base, and the second transmission shaft 19 on the second support arm 3c is matched with the third shaft hole 12 on the second connecting base; one end of each of the first driving arm 2b and the second driving arm 3b is fixedly provided with a third transmission shaft 20, the third transmission shaft 20 on the first driving arm 2b is matched with the second shaft hole 11 on the first connecting rod 2d, and the third transmission shaft 20 on the second driving arm 3b is matched with the second shaft hole 11 on the second connecting rod 3 d; the driving shaft 4c is fixedly connected with the other end of the first driving arm 2b, the driving shaft 4c is matched with the fourth shaft hole 13 on the first connecting base 2a, the other end of the second driving arm 3b is fixedly provided with a fourth driving shaft 21, and two ends of the fourth driving shaft 21 are matched with the fourth shaft hole 13 on the second connecting base 3 a.

The first connecting base 2a, the first connecting rod 2d, the first driving arm 2b and the first supporting arm 2c form a stable four-bar mechanism, and the stable unfolding and retracting of the first connecting rod 2d can be realized under the driving of the driving mechanism 4, so as to ensure the posture of the pedal 5 in the retracted and unfolded state, that is, ensure that the upper surface of the pedal 5 is basically parallel to the ground, and further ensure that the force exerted by the pedal 5 on the first connecting rod 2d is vertically downward or basically vertically downward in the retracted or unfolded state, and particularly avoid the occurrence of a component force of a horizontal outward side to cause the driving bracket 2 to be not in place in the retracted state. Similarly, the second connecting base 3a, the second connecting rod 3d, the second driving arm 3b and the second supporting arm 3c also form a stable four-bar mechanism, and the pedal does not generate a component force to the outside of the second connecting rod 3d in the retracted or extended state, so that the self-locking force of the gearbox 4b on the driving bracket 2 is enough to ensure that the driven bracket 3 can receive the position.

The first support arm 2c and the second support arm 3c are provided with a fifth shaft hole 14a for installing the first transmission shaft 18 and a sixth shaft hole 14b for installing the second transmission shaft 19 in a penetrating manner at both ends, one end of the first drive arm 2b and one end of the second drive arm 3b are provided with a seventh shaft hole 15 for installing the third transmission shaft 20 in a penetrating manner, the other end of the first drive arm 2b is provided with an eighth shaft hole 16 for installing the drive shaft 4c in a penetrating manner, and the other end of the second drive arm 3b is provided with an eighth shaft hole 16 for installing the fourth transmission shaft 21 in a penetrating manner.

The two ends of the first supporting arm 2c are respectively provided with a transmission shaft rotating device, one end of the first driving arm 2b is provided with a transmission shaft rotating device, and the other end is provided with a driving shaft locking device.

It should be emphasized that, since the driving shaft 4c adopts a detachable mounting manner and a corresponding driving arm, the mounting firmness of the driving shaft 4c directly affects the stability of the motion of the driving bracket 2, and abnormal noise may be caused by the unstable mounting. Accordingly, the drive shaft 4c locking means is provided for the drive shaft 4c in the present utility model.

The driving shaft locking device comprises a first locking bolt 23 and a square fixing block 29, wherein a flat groove 4c1 c2 is formed in the middle section of the driving shaft 4c, one end, connected with the driving shaft 4c, of the first driving arm 2b is provided with a first through hole 27 which is perpendicular to the eighth shaft hole 16 and coaxial with the eighth shaft hole, the square fixing block 29 is inserted into the circular shaft hole from one side of the first driving arm 2b, the square fixing block is matched with the flat grooves 4c1 and 4c2 on the driving shaft 4c, the square fixing block 29 is provided with a first threaded hole 25 coaxial with the square fixing block, and the first locking bolt 23 is inserted into the first through hole 27 from the other side of the first driving arm 2b and is in threaded fit with the first threaded hole 25.

Because the torque carried by the driving shaft 4c after being fixedly connected with the first driving arm 2b is far greater than that of other driving shafts, the driving shaft 4c locking device has a firmer locking function relative to the driving shaft locking device, wherein the square fixing blocks 29 and the second locking bolts 23 are respectively arranged on two sides of the first driving arm 2b, and the front surface on the square fixing blocks 29 and the flat grooves 4c1 and 4c2 on the driving shaft 4c can be pressed tightly by locking the first locking bolts 23, so that the driving shaft 4c and the first driving arm 2b are fixed more firmly.

The fifth shaft hole 14a, the sixth shaft hole 14b, and the seventh shaft hole 15 are each provided with a shaft sleeve 22, and the fourth shaft hole 13 is also provided with a second shaft sleeve 30.

When the drive shaft 4c and each drive shaft are operated in conjunction with a corresponding shaft bore, a lubricating medium is typically required between the shaft and the bore interior for lubrication. Because the hole arm and the shaft are both made of metal materials, under the condition of no continuous lubrication medium supplement, the shaft and the shaft hole can be abraded due to long-term friction and abnormal sound can be generated, if special abrasion-resistant treatment is needed for improving the abrasion resistance of the shaft and the shaft hole, the manufacturing process is more complex, and the manufacturing cost is relatively increased. Therefore, the shaft sleeve 22 and the second shaft sleeve 30 are respectively arranged in all shaft holes, the shaft sleeve 22 and the second shaft sleeve 30 are made of special materials with self-lubricating function, and because the parts of the shaft sleeve 22 and the second shaft sleeve 30 are relatively smaller, the parts can be made of different materials with other parts, the manufacturing and the processing are easy, and the cost is reduced greatly.

The first and second links 2d and 3d are each provided with a sink in which the shock pad 31 is installed toward one side of the first and second support arms 2c and 3 c.

The active bracket 2 should have good stability when the step 5 stays at the retracted position or the extended position, and should minimize collision and impact between the components when reaching the retracted position or the extended position. The shock pad 31 is mounted on the inner side of the first link 2d, specifically, toward the side of the first support arm 2 c. When the pedal 5 is in the fully-unfolded position, the first supporting arm 2C compresses the shock pad 31, at the moment, the first connecting rod 2d, the shock pad 31 and the first supporting arm 2C are tightly attached, so that self-locking is achieved when the driving bracket 2 is in the unfolded positioning state, the shock pad 31 ensures that the first connecting rod 2d and the first supporting arm 2C are tightly attached, meanwhile, collision between the first supporting arm 2C and the first connecting rod 2d is reduced, when the pedal is used, downward stepping gravity is decomposed into the first connecting rod 2d and the first supporting arm 2C to bear, the stress of the first driving arm 2b is reduced, the torsion of the driving shaft 4C of the first driving arm 2b is reduced, the stability and the service life of the driving mechanism 4 are improved, and when the pedal 5 is retracted, the shock pad 31 on the first connecting rod 2d is also compressed by the first driving arm 2b, and the three are tightly attached, so that the driving bracket 2 is in the other positioning state.

The driving support 2 and the driven support 3 should have good stability when the pedal 5 is in the unfolded position, and should have a self-locking function when reaching the unfolded position, specifically, when the pedal 5 is in the fully unfolded position, the first support arm 2c compresses the shock pad 31, and at the moment, the first connecting rod 2d, the shock pad 31 and the first support arm 2c are tightly attached, so that the driving support 2 and the driven support 3 achieve self-locking when being in the unfolded positioning state, a self-locking mechanism is formed at the corresponding position of the shock pad 31, and the self-locking state is realized for a user to tread the electric side.

The pedal 5 is provided with a T-shaped groove 5a, a connecting block 33 with a T-shaped cross section is mounted in the T-shaped groove 5a, grooves matched with the connecting block 33 are formed in the front ends of the first connecting rod 2d and the second connecting rod 3d, and a second threaded hole 26 for locking the pedal 5 is formed in the connecting block 33.

The first connecting rod 2d and the second connecting rod 3d are connected with the pedal 5 through the connecting block 33, so that the stress between the pedal 5 and the first connecting rod 2d and the second connecting rod is not completely applied by bolts, the stress condition is transferred to the outer wall of the connecting block 33, and after the auxiliary connection by adopting the connecting block 33, whether the installation positions of the driving support 2 and the driven support 3 are correct or not can be detected, for example, the first connecting rod 2d on the driving support 2 is connected with the pedal 5, if the groove on the second connecting rod 3d cannot be exactly matched with the connecting block 33 at the corresponding position, the installation deviation of the driven support 3 and the driving support 2 is indicated, and vice versa.

The pedal 5 has an upper surface inclined at an angle of between 3 and 8 degrees inwardly to the ground in the retracted state and substantially parallel to the ground in the extended state.

Ideally, the upper surface of the pedal 5 is kept horizontal to the ground both in the retracted position and in the extended position, and specifically, the force applied by the pedal 5 to the first link 2d and the second link 3d when the pedal is retracted externally can be kept vertically downward, so that no horizontal component force to the outside is generated, and the tightening of the active bracket 2 is ensured.

The foot rest 5 is at an acute angle between its upper surface and the ground in the retracted and extended positions.

The upper surface of the step 5 may be at a small angle to the ground in the retracted and extended positions without affecting use.

More specifically, in the retracted position, the upper surface of the step 5 is inclined inward by an angle of between 3 and 8 degrees, and in the extended position, the upper surface of the step 5 is inclined inward by an angle of between 0 and 5 degrees.

In order to ensure the reliability of the step 5, the upper surface of the step 5 is preferably inclined inwardly, so that the upper surface of the step 5 does not slip due to the inclined outwardly of the foot when the sole of the user is slippery, and in order to ensure the aesthetic appearance of the unfolded state of the step 5, that is, the inclined angle of the step 5 does not affect the appearance of the whole vehicle due to excessive increase, the inclined angle of the upper surface of the step 5 should be as small as possible, and in this embodiment, it is preferably between 0 and 5 degrees.

The foregoing description is merely illustrative of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model. Equivalent changes and modifications are intended to be within the scope of the present utility model as defined in the appended claims.

Claims (15)

1. The utility model provides an automobile electric pedal, includes an initiative support (2), a actuating mechanism (4) and a step (5), initiative support (2) and actuating mechanism (4) are all installed in automobile body (1) bottom homonymy, its characterized in that: the driving bracket (2) comprises a first transmission mechanism and a first connecting rod (2 d), and the front end of the first connecting rod (2 d) is fixedly connected with the pedal (5); the first transmission mechanism drives the first connecting rod (2 d) to be unfolded and retracted;

the driving shaft (4 c) of the driving mechanism (4) is directly and fixedly connected with the first transmission mechanism and drives the first transmission mechanism to extend and retract so as to extend and retract the first connecting rod (2 d); when the first connecting rod (2 d) moves from the retracted state to the unfolding state, the pedal (5) is driven to move to the lower side outside the vehicle body (1); wherein, the included angle between the upper surface of the pedal (5) and the ground (7) in the retraction state is 3-8 degrees (28); in the unfolded state, the upper surface is substantially parallel to the ground (7).

2. An automotive electric pedal as claimed in claim 1, wherein: the driving mechanism (4) comprises a driving motor (4 a) arranged at the bottom of the vehicle body (1), a gearbox (4 b) is arranged at the output end of the driving motor (4 a), and the gearbox (4 b) is connected with the first transmission mechanism through a driving shaft (4 c).

3. An automotive electric pedal as claimed in claim 2, characterized in that: the first transmission mechanism comprises a first connection base (2 a), a first driving arm (2 b) and a first supporting arm (2 c); the driving shaft (4 c) penetrates through the first connecting base (2 a) and is fixedly connected with one end of the first driving arm (2 b); the other end of the first driving arm (2 b) is rotationally connected with a first connecting rod (2 d); two ends of the first supporting arm (2 c) are respectively and rotatably connected with the first connecting base (2 a) and the first connecting rod (2 d).

4. An automotive electric pedal as claimed in claim 3, characterized in that: the first connecting rod (2 d) is provided with a connecting lug (6), the connecting lug (6) is provided with two first shaft holes (10) and second shaft holes (11) which are perpendicular to the connecting lug (6), and the axis of the first shaft holes (10) is parallel to the axis of the second shaft holes (11); the connecting base (2 a) is provided with a connecting plate (8), the connecting plate (8) is provided with two third shaft holes (12) and four shaft holes (13) which are perpendicular to the connecting plate (8), and the axis of the third shaft holes (12) is parallel to the axis of the fourth shaft holes (13);

One end of the first supporting arm (2 c) is fixedly provided with a first transmission shaft (18), and the other end of the first supporting arm is fixedly provided with a second transmission shaft (19);

a first transmission shaft (18) on the first supporting arm (2 c) is matched with a first shaft hole (10) on the first connecting rod (2 d),

the second transmission shaft (19) on the first supporting arm (2 c) is matched with the third shaft hole (12) on the first connecting base (2 a);

one end of the first driving arm (2 b) is fixedly provided with a third transmission shaft (20), and the third transmission shaft (20) on the first driving arm (2 b) is matched with the second shaft hole (11) on the first connecting rod (2 d);

the driving shaft (4 c) is fixedly connected with the other end of the first driving arm (2 b), and the driving shaft (4 c) is matched with a fourth shaft hole (13) on the first connecting base (2 a).

5. An automotive electric pedal as claimed in claim 4, wherein: the utility model discloses a motor drive mechanism, including first support arm (2 c), second support arm (2 b), first support arm (2 b), eighth shaft hole (16) that are used for installing drive shaft (4 c) are run through to be equipped with in both ends of first support arm (2 c), the axis in fifth shaft hole (14 a) and sixth shaft hole (14 b) are parallel, the one end of first drive arm (2 b) is run through and is equipped with seventh shaft hole (15) that are used for installing third transmission shaft (20), the other end of first drive arm (2 b) is run through and is equipped with eighth shaft hole (16) that are used for installing drive shaft (4 c), the axis in seventh shaft hole (15) and eighth shaft hole (16) are parallel.

6. An automotive electric pedal as claimed in claim 5, wherein: two ends of the first supporting arm (2 c) are respectively provided with a transmission shaft rotating device; one end of the first driving arm (2 b) is provided with a transmission shaft rotating device, and the other end of the first driving arm is provided with a driving shaft locking device.

7. An automotive electric pedal as claimed in claim 6, wherein: the transmission shaft rotating device comprises a shaft sleeve (22), two ends of a first transmission shaft (18), a second transmission shaft (19) and a third transmission shaft (20) are in rotating fit with the shaft sleeve (22), the middle section of the first transmission shaft (18) is in interference locking fit with a first shaft hole (10) of a first connecting rod (2 d), the middle section of the second transmission shaft (19) is in interference locking fit with a third shaft hole (12) of a first connecting base (2 a), and the middle section of the third transmission shaft (20) is in interference locking fit with a second shaft hole (11) of the first connecting rod (2 d).

8. An automotive electric pedal as claimed in claim 6, wherein: the driving shaft locking device comprises a first locking bolt (23) and a square fixing block (29), flat grooves (4 c1, 4c 2) are formed in the middle section of the driving shaft (4 c), one end, connected with the driving shaft (4 c), of the first driving arm (2 b) is provided with a first through hole (27) perpendicular to the eighth shaft hole (16) and coaxial with the eighth shaft hole, the square fixing block (29) is inserted into the eighth shaft hole (16) from one side of the first driving arm (2 b), the square fixing block (29) is matched with the flat grooves (4 c1, 4c 2) in the driving shaft (4 c), the square fixing block (29) is provided with a first threaded hole (25) coaxial with the square fixing block, and the first locking bolt (23) is inserted into the first through hole (27) from the other side of the first driving arm (2 b) and is in threaded fit with the first threaded hole (25).

9. An automotive electric pedal as claimed in claim 6, wherein: shaft sleeves (22) are arranged in the fifth shaft hole (14 a), the sixth shaft hole (14 b) and the seventh shaft hole (15), and a second shaft sleeve (30) is arranged in the fourth shaft hole (13).

10. An automotive electric pedal according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, characterized in that: the bicycle comprises a bicycle body, a pedal (5) and at least one driven bracket (3), wherein the driven bracket (3) comprises a second transmission mechanism and a second connecting rod (3 d), and the front end of the second connecting rod (3 d) is fixedly connected with the pedal; the driving bracket (2) drives the second transmission mechanism to synchronously extend and retract through the pedal (5) so as to synchronously extend and retract the second connecting rod (3 d).

11. An automotive electric pedal as claimed in claim 10, wherein: the structure of the driven bracket (3) is consistent with that of the driving bracket (2), namely the driven bracket (3) is composed of a second connecting base (3 a), a second driving arm (3 b), a second supporting arm (3 c) and a second connecting rod (3 d), except that a driving mechanism (4) and a driving shaft (4 c) are not arranged, and a fourth driving shaft (21) is adopted to replace the driving shaft (4 c).

12. An automotive electric pedal as claimed in claim 11, characterized in that: one side of the first connecting rod (2 d) and one side of the second connecting rod (3 d) facing the first supporting arm (2 c) and one side of the second supporting arm (3 c) are respectively provided with a sinking groove, and a shock pad (31) is arranged in each sinking groove.

13. An automotive electric pedal as claimed in claim 10, wherein: the pedal (5) is provided with a T-shaped groove (5 a), a connecting block (33) with a T-shaped section is arranged in the T-shaped groove (5 a), grooves matched with the connecting block (33) are formed in the front ends of the first connecting rod (2 d) and the second connecting rod (3 d), and a second threaded hole (26) for locking the pedal (5) is formed in the connecting block (33).

14. An automotive electric pedal as claimed in claim 10, wherein: the upper surface of the pedal (5) forms an acute angle with the ground (7) when the pedal is in the retracted position and the extended position.

15. An automotive electric pedal as claimed in claim 10, wherein: the upper surface of the pedal (5) is inclined inwards by an angle (32) of 0-5 degrees.