Anti-pinch electric pedal

Abstract

The present invention relates to the technical field of electric pedals for electric vehicles, and discloses an anti-pinch electric pedal, comprising a footboard and an extending and extending unit arranged on the footboard, wherein the extending and extending unit comprises a moving part and a driving part arranged on the footboard; by arranging a lifting element and a control part in a transmission assembly, when a passenger's foot is placed on a trigger plate on the footboard, even if a mechanical part or a sensor is damaged, the transmission rod will not drive a rotating rod to rotate, thereby preventing the footboard from being retracted and pinching the foot. Only when the passenger's foot leaves the trigger plate can the trigger plate enable the transmission rod to drive the rotating rod to rotate again through the lifting element, thereby retracting the footboard, effectively preventing the passenger's foot from being pinched by the retracted footboard when the mechanical part or the sensor is damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of electric pedals for electric vehicles, and in particular to an anti-pinch electric pedal. Background Art

[0002] The electric pedal on an electric vehicle is an automatically retractable pedal device installed on both sides of the vehicle body. Its main function is to facilitate passengers to get off the vehicle, especially for SUV-type electric vehicles with a higher chassis. When the door is opened, the electric pedal will automatically extend to reduce the step height of passengers when getting on and off the vehicle. After the door is closed, the pedal will automatically retract to restore the original appearance and passability of the vehicle. The electric pedal consists of a pedal body, a motor and transmission system, a sensor system and a control unit. Its working principle is that when the door is opened, the door sensing sensor sends a signal to the control unit, the control unit drives the motor to run, and the motor drives the pedal to extend outward through the transmission system until it reaches the predetermined position. When the door is closed, the door sensing sensor sends a signal again, and the control unit reverses the motor and retracts the pedal through the transmission system.

[0003] Although electric step can effectively improve the convenience of passengers getting on and off the vehicle, the following problems still exist. The electric step is driven by a motor to achieve movement during the extension and retraction process. If the mechanical components fail, such as the transmission chain, gears and other components, or get stuck, the movement of the step may become uncontrolled. At this time, when the passenger's feet are still in the movement path of the step, it is easy to cause pinching. Even if there is an anti-pinch sensing system, if the sensing is not sensitive enough, there is a sensing blind spot, the response is delayed or the sensor is damaged, the passenger's feet cannot be detected in time, which will also cause pinching incidents. Summary of the Invention

[0004] In view of the problem in the prior art that mechanical parts are damaged or sensors are faulty, resulting in pinching injuries to passengers' feet, an anti-pinch electric pedal is proposed.

[0005] The present application provides an anti-pinch electric pedal, the purpose of which is: by arranging a lifting element and a control element in the transmission assembly, when a passenger's foot is placed on the trigger plate on the footboard, even if the mechanical components or sensors are damaged, the transmission rod will not drive the rotating rod to rotate, and the footboard will not be retracted to pinch the foot. Only when the passenger's foot leaves the trigger plate can the trigger plate enable the transmission rod to drive the rotating rod to rotate again through the lifting element, and then the footboard can be retracted, effectively avoiding the situation where the passenger's foot is pinched by the retracted footboard when the mechanical components or sensors are damaged.

[0006] The technical solution of the present invention is: an anti-pinch electric pedal, comprising a footboard, and an extension unit arranged on the footboard, wherein the extension unit comprises a moving part and a driving part arranged on the footboard;

[0007] The moving parts include a plurality of fixed plates arranged on the side walls of the footboard, rotating shafts respectively arranged at the lower ends of the plurality of fixed plates, a movable plate arranged on the outer wall of the rotating shaft, a plurality of rotating rods respectively arranged at one end of the plurality of movable plates, a plurality of fixed base plates respectively arranged at both ends of the plurality of rotating rods, a plurality of linkage gears respectively arranged on the outer walls of the plurality of rotating rods, and a transmission chain arranged between the plurality of linkage gears;

[0008] The plurality of rotating shafts are fixedly mounted on the lower ends of the corresponding fixed plates, the plurality of movable plates are slidably mounted on the outer walls of the corresponding rotating shafts, one ends of the plurality of movable plates are fixedly mounted on the outer walls of the corresponding rotating rods, and the transmission chain is sleeved and mounted between each linkage gear.

[0009] Furthermore, the driving component includes a driving cover arranged on the upper end of the fixed seat plate located in the middle position, a pad arranged on the upper end of the fixed seat plate, a servo motor arranged on the upper end of the pad, a driving rod arranged on the driving end of the servo motor, a bevel gear 1 arranged at one end of the driving rod, an intermediate plate arranged on the fixed seat plate, a mounting circular groove opened on the intermediate plate, a one-way bearing arranged in the mounting circular groove, a transmission rod arranged on the inner ring of the one-way bearing, a connecting disk arranged at the upper end of the transmission rod, and a bevel gear 2 arranged on the connecting disk, the bevel gear 1 and the bevel gear 2 are meshed with each other, a transmission assembly is installed between the one-way bearing and the corresponding rotating rod, and a locking assembly is installed between the transmission rod and the outer ring of the one-way bearing.

[0010] Furthermore, the transmission assembly includes a transition rod arranged at the upper end of the corresponding rotating rod, a connecting tube arranged at the upper end of the transition rod, and the upper end of the connecting tube is fixedly connected to the lower end of the outer ring of the one-way bearing.

[0011] Furthermore, the locking assembly includes vertical grooves on both sides of the outer wall of the transmission rod, a sliding plate slidably installed in the two vertical grooves, a telescopic spring installed between the sliding plate and the connecting plate, two clamping plates arranged at the lower end of the sliding plate, two clamping grooves opened at the upper end of the outer ring of the one-way bearing, the lower ends of the two clamping plates are located in the corresponding clamping grooves, and a lifting element is installed on the side wall of the sliding plate.

[0012] Furthermore, the lifting element includes a plain bearing arranged on the side wall of the sliding plate, a side plate arranged on the outer ring of the plain bearing, two lifting rods arranged at the lower end of the side plate, two liquid level cylinders arranged in the fixed seat plate, and piston plates respectively arranged at the lower ends of the two lifting rods. The two piston plates are respectively slidably installed on the inner walls of the corresponding liquid level cylinders, and a control component is installed between the two liquid level cylinders and the footboard.

[0013] Furthermore, the control component includes a square groove opened at the upper end of the footboard, two return springs arranged at the bottom end of the square groove, a trigger plate arranged at the upper end of the two return springs, the trigger plate is slidably installed in the square groove, a liquid dispensing block arranged at the upper end of the movable plate located in the middle position, an infusion hole opened on the inner wall of the square groove, a conduit 1 arranged between the infusion hole and the liquid dispensing block, and two conduits 2 arranged between the liquid dispensing block and the two liquid level cylinders, and the two liquid level cylinders are connected to the interior of the square groove through conduit 2 and conduit 1.

[0014] Furthermore, the conduit 1 and the conduit 2 are both corrugated hoses, and the square groove, the conduit 1, the conduit 2, and the liquid distribution block are all filled with hydraulic oil.

[0015] Furthermore, a plurality of anti-slip grooves are provided on the upper end of the trigger plate.

[0016] Beneficial effects of the present invention:

[0017] By setting a one-way bearing and a locking assembly, when the sensors or mechanical parts are normal, the transmission rod can normally drive the corresponding rotating rod to rotate through the locking assembly, thereby controlling the extension and retraction of the footboard. When the passenger's foot is on the footboard, the locking assembly slides upward through the control part and the lifting element, thereby releasing the transmission rod from controlling the rotating rod. Even if the mechanical parts or sensors fail and the footboard needs to be retracted, the transmission rod will not drive the rotating rod to rotate due to the one-way bearing, and the footboard cannot be retracted, causing pinching, thereby effectively improving the safety of the electric step.

[0018] The anti-pinch sensing system is expensive, and the long-term shaking of the tram during driving will cause damage to the internal components of the sensor, which makes it difficult to repair the damaged sensor. Compared with the anti-pinch sensing system, the present invention has a simple structure and low cost. When the electric step is damaged or malfunctions, it is convenient for maintenance personnel to repair it. While greatly improving the safety of the electric step, it greatly reduces the production cost and effectively avoids the occurrence of passengers' feet being pinched. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first viewing angle;

[0020] Figure 2 It is a schematic structural diagram of the driving component of the present invention;

[0021] Figure 3 For the present invention Figure 2 A in the middle is an enlarged structural diagram;

[0022] Figure 4 It is a schematic structural diagram of the moving parts of the present invention;

[0023] Figure 5 is a schematic diagram of a second perspective three-dimensional structure of the present invention;

[0024] Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0025] Figure 7 It is a schematic structural diagram of the transmission assembly of the present invention;

[0026] Figure 8 This is a schematic diagram of the installation structure of the telescopic spring of the present invention;

[0027] Figure 9 This is a schematic diagram of the side panel installation structure of the present invention;

[0028] Figure 10 It is a schematic diagram of the vertical trough structure of the present invention;

[0029] Figure 11 This is a schematic diagram of the card board and card slot installation structure of the present invention;

[0030] Figure 12 For the present invention Figure 11 The enlarged structural diagram at C in the middle;

[0031] Figure 13 Schematic diagram of the control structure of the present invention.

[0032] In the picture:

[0033] 1. Footboard; 2. Fixed plate; 3. Rotating shaft; 4. Movable plate; 5. Rotating rod; 6. Fixed seat plate; 7. Linkage gear; 8. Transmission chain; 9. Drive cover; 10. Pad; 11. Servo motor; 12. Drive rod; 13. Bevel gear 1; 14. Intermediate plate; 15. One-way bearing; 16. Drive rod; 17. Connecting plate; 18. Bevel gear 2; 19. Transition rod; 20. Connecting cylinder; 21. Vertical slot; 22. Sliding plate; 23. Telescopic spring; 24. Clamping plate; 25. Clamping slot; 26. Ordinary bearing; 27. Side plate; 28. Lifting rod; 29. Liquid level cylinder; 30. Piston plate; 31. Square slot; 32. Reset spring; 33. Trigger plate; 34. Liquid dispensing block; 35. Infusion hole; 36. Catheter 1; 37. Catheter 2. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] Example 1, with reference to Figures 1-4, which is the first embodiment of the present invention, provides an anti-pinch electric pedal, including a footboard 1, and an extension unit installed on the footboard 1, the extension unit including a moving part and a driving part installed on the footboard 1.

[0036] The moving parts include multiple fixed plates 2 fixedly mounted on the side walls of the footboard 1, rotating shafts 3 fixedly mounted on the lower ends of the multiple fixed plates 2, movable plates 4 rotatably mounted on the outer walls of the rotating shafts 3, multiple rotating rods 5 fixedly mounted on one end of the multiple movable plates 4, multiple fixed seat plates 6 rotatably mounted on both ends of the multiple rotating rods 5, multiple linkage gears 7 fixedly mounted on the outer walls of the multiple rotating rods 5, and a transmission chain 8 sleeved and installed between the multiple linkage gears 7.

[0037] Multiple rotating shafts 3 are fixedly installed at the lower ends of the corresponding fixed plates 2, multiple movable plates 4 are slidably installed on the outer walls of the corresponding rotating shafts 3, one ends of the multiple movable plates 4 are fixedly installed on the outer walls of the corresponding rotating rods 5, and the transmission chain 8 is installed between each linkage gear 7.

[0038] Specifically, the function of the moving component is to control the extension and retraction of the step 1. By controlling the rotation of the rotating rod 5 located in the middle position, the corresponding fixed linkage gear 7 on the rotating rod 5 rotates synchronously. The rotation of the linkage gear 7 drives the corresponding other linkage gears 7 to rotate synchronously through the transmission chain 8, and then drives the other rotating rods 5 to rotate. When multiple rotating rods 5 rotate synchronously, the overall movement of the step 1 will be driven through the fixed plate 2, and by controlling the rotation direction of the multiple rotating rods 5, the extension and retraction of the step 1 can be controlled. A mounting plate (not shown in the figure) is fixedly installed on the multiple fixed seat plates 6, and the multiple fixed seat plates 6 and the step 1 are installed at the lower ends of both sides of the electric vehicle (not shown in the figure) through the mounting plate.

[0039] Reference Figure 5-Figure 7 The driving components include a driving cover 9 fixedly mounted on the upper end of the fixed base plate 6 located in the middle position, a pad 10 fixedly mounted on the upper end of the fixed base plate 6, a servo motor 11 fixedly mounted on the upper end of the pad 10, a driving rod 12 fixedly mounted on the driving end of the servo motor 11, a bevel gear 13 fixedly mounted on one end of the driving rod 12, an intermediate plate 14 fixedly mounted on the fixed base plate 6, a mounting circular groove provided on the intermediate plate 14, a one-way bearing 15 rotatably mounted in the mounting circular groove, a transmission rod 16 fixedly mounted on the inner ring of the one-way bearing 15, a connecting disk 17 fixedly mounted on the upper end of the transmission rod 16, a bevel gear 2 18 fixedly mounted on the connecting disk 17, bevel gear 13 and bevel gear 2 18 mesh with each other, a transmission assembly is installed between the one-way bearing 15 and the corresponding rotating rod 5, and a clamping assembly is installed between the transmission rod 16 and the outer ring of the one-way bearing 15.

[0040] Specifically, the function of the driving component is to control the rotation and rotation direction of the rotating rod 5 located in the middle position. A sensor (not shown in the figure) is installed at the door of the electric car. The sensor is electrically connected to the servo motor 11. When the door of the electric car is opened, the sensor transmits the door opening signal to the servo motor 11 and controls the driving end of the servo motor 11 to rotate. The servo motor 11 drives the rotating rod 5 to rotate through some driving components. The rotation of multiple rotating rods 5 synchronously drives the footboard 1 to extend outward. At this time, the footboard 1 is in a working state. When the door of the electric car is closed, the sensor transmits the door closing signal to the servo motor 11 again and controls the servo motor 11 to rotate in the opposite direction, thereby retracting the footboard 1 through the opposite rotation of multiple rotating rods 5.

[0041] Existing anti-pinch recognition systems implement their anti-pinch function by providing a recognizer. However, if the recognizer in the anti-pinch recognition system fails to recognize or transmit a signal to the servo motor 11 while the passenger's foot is still on the step 1, and the step 1 is retracted, and the electric vehicle vibrates during extended periods of motion, the internal components of the recognizer are easily damaged, making it difficult to effectively prevent pinching. The present invention, inspired by this situation, is designed to "directly disconnect" the transmission rod 16 from the corresponding rotating rod 5 when the passenger's foot is on the step 1. This allows the transmission rod 16 to drive the inner race of the one-way bearing 15 to "idle" when the step 1 is retracted, even if the recognizer fails. (The operating principle of the one-way bearing 15 is that when the inner race rotates in the forward direction, it does not drive the outer race, but when the one-way bearing 15 rotates in the reverse direction, it drives the outer race to rotate synchronously.) The direction in which the rotating rod 5 rotates to drive the footboard 1 to be retracted is set to be forward rotation. In this way, even when the identifier or sensor fails and causes the footboard 1 to be retracted, if there is a passenger's foot on the footboard 1, the transmission rod 16 cannot drive the corresponding rotating rod 5 to rotate through the locking assembly. Only when there is no passenger's foot on the footboard 1 will the footboard 1 be retracted.

[0042] Example 2, reference Figure 7-11, which is the second embodiment of the present invention, differs from the first embodiment in that: the transmission assembly includes a transition rod 19 fixedly mounted on the upper end of the corresponding rotating rod 5, a connecting tube 20 fixedly mounted on the upper end of the transition rod 19, the upper end of the connecting tube 20 fixedly connected to the lower end of the outer ring of the one-way bearing 15. The engaging assembly includes vertical slots 21 defined on both sides of the outer wall of the transmission rod 16, a sliding plate 22 slidably mounted within the two vertical slots 21, a telescopic spring 23 installed between the sliding plate 22 and the connecting plate 17, two clamping plates 24 fixedly mounted on the lower end of the sliding plate 22, two clamping slots 25 defined on the upper end of the outer ring of the one-way bearing 15, the lower ends of the two clamping plates 24 located within the corresponding clamping slots 25, and a lifting element mounted on the side wall of the sliding plate 22.

[0043] The lifting element includes a plain bearing 26 fixedly mounted on the side wall of the sliding plate 22, a side plate 27 fixedly mounted on the outer ring of the plain bearing 26, two lifting rods 28 fixedly mounted on the lower end of the side plate 27, two liquid level cylinders 29 fixedly mounted in the fixed seat plate 6, and piston plates 30 respectively fixedly mounted on the lower ends of the two lifting rods 28. The two piston plates 30 are respectively slidably mounted on the inner walls of the corresponding liquid level cylinders 29, and a control component is installed between the two liquid level cylinders 29 and the footboard 1.

[0044] Specifically, the function of the transmission component is: when the outer ring of the one-way bearing 15 rotates, it can drive the corresponding rotating rod 5 at the lower end to rotate synchronously. The function of the clamping component is: because the inner ring of the one-way bearing 15 will not drive its outer ring to rotate when it rotates in the forward direction, the clamping component is designed so that when the inner ring of the one-way bearing 15 rotates normally in the forward direction, it can drive its outer ring to rotate through the clamping plate 24, and then drive the corresponding rotating rod 5 to rotate through the transmission component, so as to realize the normal retraction of the footboard 1. Because the clamping plate 24 is fixedly installed under the sliding plate 22, when the sliding plate 22 moves upward along the vertical slot 21, The card plate 24 is separated from the card slot 25, so that the inner ring of the one-way bearing 15 will not drive the outer ring to rotate when it rotates in the forward direction. Through this principle, when the passenger's foot is above the footboard 1, the control member can be used to make the sliding plate 22 move upward along the vertical groove 21, so that the card plate 24 is separated from the card slot 25, and then "cut off" the connection between the transmission rod 16 and the rotating rod 5, playing a role of guarantee. Even if the sensor or identifier fails, the rotation of the transmission rod 16 cannot drive the rotating rod 5 to rotate synchronously and retract the footboard 1, thereby avoiding the passenger's foot from being pinched from the source.

[0045] The remaining structures are the same as those of Example 1.

[0046] Example 3, reference Figure 7 as well as Figure 12-13This is the third embodiment of the present invention. This embodiment differs from the second embodiment in that the control element includes a square slot 31 formed at the top of the footboard 1, two return springs 32 fixedly mounted at the bottom of the square slot 31, a trigger plate 33 fixedly mounted above the two return springs 32, the trigger plate 33 slidably mounted within the square slot 31, a liquid dispensing block 34 fixedly mounted above the movable plate 4 located in the middle, a liquid infusion hole 35 formed on the inner wall of the square slot 31, a conduit 1 36 fixedly mounted between the liquid infusion hole 35 and the liquid dispensing block 34, and two conduits 2 37 fixedly mounted between the liquid dispensing block 34 and the two liquid level cylinders 29. The two liquid level cylinders 29 are connected to the interior of the square slot 31 via conduits 2 37 and 1 36. Conduits 1 36 and 2 37 are both corrugated hoses. The square slot 31, conduits 1 36, 2 37, and the liquid dispensing block 34 are all filled with hydraulic oil. The top end of the trigger plate 33 is provided with multiple anti-slip grooves.

[0047] Specifically, the principle of the control component is as follows: when the passenger's foot is above the step 1, the trigger plate 33 is subjected to the pressure of the passenger's foot and gravity, causing it to slide downward along the square groove 31. During the downward sliding process of the square groove 31, the hydraulic oil inside the square groove 31 is squeezed, so that the hydraulic oil inside the square groove 31 enters the corresponding liquid level cylinder 29 through the conduit 1 36, the liquid distribution block 34, and the conduit 2 37 during the squeezing process. As the hydraulic oil inside the liquid level cylinder 29 rises, the piston plate 30 moves upward under the action of the hydraulic oil, and then drives the side plate 27 to move upward through the lifting rod 28. As the side panel 27 moves upward, it drives the sliding panel 22 upward along the vertical slot 21, separating the catch 24 from the slot 25. This allows the sensor 16 to rotate and the footboard 1 to be retracted, preventing the passenger's foot from being pinched. Similarly, only when a passenger's foot is not on the trigger plate 33 will the catch 24 be positioned within the slot 25. Only then will the footboard 1 be retracted under the action of the drive component, preventing the passenger's foot from being pinched. The purpose of conduit 1 36 and conduit 2 37 being designed as corrugated hoses is to allow them to bend and stretch properly when the movable panel 4 rotates normally, ensuring proper communication between conduit 1 36 and conduit 2 37. Anti-slip grooves are provided on the trigger plate 33 to prevent passengers from slipping when using the footboard 1.

[0048] The remaining structures are the same as those of Example 2.

[0049] Based on Examples 1-3, the working principle of the present invention is as follows:

[0050] The present invention is installed on the bottom ends of both sides of the electric vehicle through the mounting plate, and a sensor is installed at the door of the electric vehicle, so that the servo motor 11 is electrically connected to the sensor. When the door of the electric vehicle is opened, the sensor transmits an open signal and controls the rotation of the driving end of the servo motor 11, and drives the transmission rod 16 at its lower end to rotate synchronously through the bevel gear 13 and the bevel gear 2 18. The transmission rod 16 rotates through the sliding plate 22 and the clamping plate 24 on the outer wall to drive the outer ring of the one-way bearing 15 to rotate synchronously. The outer ring of the one-way bearing 15 rotates through the transition rod 19 and the connecting tube 20 to drive the corresponding rotating rod 5 to rotate. The rotating rod 5 drives the remaining rotating rods 5 to rotate synchronously through the transmission chain 8, so that multiple movable plates 4 drive the footboard 1 to extend through the fixed plate 2, which is convenient for passengers to get on and off the vehicle.

[0051] When the passenger's foot is on the trigger plate 33 on the step 1 during getting on or off the vehicle (not completely on or off the vehicle), the trigger plate 33 slides downward along the square groove 31 and squeezes the hydraulic oil in the square groove 31 into the conduit 1 36, and enters the corresponding liquid level cylinder 29 through the liquid distribution block 34 and the conduit 2 37, so that the hydraulic oil level in the liquid level cylinder 29 rises, thereby driving the internal piston plate 30 to move upward synchronously. During the upward movement of the piston plate 30, the side plate 27 is driven to move upward synchronously through the lifting rod 28. During the upward movement of the side plate 27, the card plate 24 at its lower end is driven to move upward synchronously through the sliding plate 22. The servo motor 11 receives a signal to retract the footboard 1, and the servo motor 11 can only drive the transmission rod 16 to rotate through the driving end. However, the transmission rod 16 drives the inner ring of the one-way bearing 15 to rotate in the forward direction, and the card plate 24 cannot drive the outer ring to rotate through the card slot 25 due to its rise, so that the transmission rod 16 can only drive the inner ring of the one-way bearing 15 to rotate idly and cannot retract the footboard 1 through the rotation of the outer ring of the one-way bearing 15, thereby solving the problem of the footboard 1 being pinched when there is a passenger's foot on the footboard 1.

[0052] Similarly, when the passengers have completely boarded or exited the vehicle, the trigger plate 33 and the sliding plate 22 are reset under the elastic force of the corresponding reset spring 32 and the telescopic spring 23, so that the card plate 24 is again located in the card slot 25 (if the sensor or identifier fails and causes the transmission rod 16 to idle, the card plate 24 cannot be aligned with the card slot 25, and the step 1 cannot be retracted normally. At this time, the driver can directly judge that the identifier and sensor are faulty by the fact that the step 1 cannot be retracted, and can then repair them in time and manually align the card plate 24 with the card slot 25). If the sensor and identifier are normal, the transmission rod 16 will not rotate. At this time, when the passengers have completely boarded or exited the vehicle, the sliding plate 22 is reset under the elastic force of the telescopic spring 23, so that the card plate 24 is reinserted into the card slot 25. At this time, when the electric car door is closed, the sensor transmits a closing signal to control the retraction of the step 1.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An anti-pinch electric pedal, comprising a footboard, characterized in that: It also includes an extension unit provided on the footboard, the extension unit including a moving component and a driving component provided on the footboard; The moving parts include a plurality of fixed plates arranged on the side walls of the footboard, rotating shafts respectively arranged at the lower ends of the plurality of fixed plates, a movable plate arranged on the outer wall of the rotating shaft, a plurality of rotating rods respectively arranged at one end of the plurality of movable plates, a plurality of fixed base plates respectively arranged at both ends of the plurality of rotating rods, a plurality of linkage gears respectively arranged on the outer walls of the plurality of rotating rods, and a transmission chain arranged between the plurality of linkage gears; The plurality of rotating shafts are fixedly mounted on the lower ends of the corresponding fixed plates, the plurality of movable plates are slidably mounted on the outer walls of the corresponding rotating shafts, one end of the plurality of movable plates is fixedly mounted on the outer walls of the corresponding rotating rods, and the transmission chain is sleeved and mounted between each linkage gear; The driving component includes a driving cover arranged on the upper end of the fixed seat plate located in the middle position, a pad arranged on the upper end of the fixed seat plate, a servo motor arranged on the upper end of the pad, a driving rod arranged at the driving end of the servo motor, a bevel gear 1 arranged at one end of the driving rod, an intermediate plate arranged on the fixed seat plate, a mounting circular groove provided on the intermediate plate, a one-way bearing arranged in the mounting circular groove, a transmission rod arranged on the inner ring of the one-way bearing, a connecting disk arranged at the upper end of the transmission rod, a bevel gear 2 arranged on the connecting disk, the bevel gear 1 and the bevel gear 2 are meshed with each other, a transmission assembly is installed between the one-way bearing and the corresponding rotating rod, and a clamping assembly is installed between the transmission rod and the outer ring of the one-way bearing; The transmission assembly includes a transition rod provided at the upper end of the corresponding rotating rod, a connecting tube provided at the upper end of the transition rod, and the upper end of the connecting tube is fixedly connected to the lower end of the outer ring of the one-way bearing; The clamping assembly includes vertical grooves formed on both sides of the outer wall of the transmission rod, a sliding plate slidably mounted in the two vertical grooves, a telescopic spring installed between the sliding plate and the connecting plate, two clamping plates arranged at the lower end of the sliding plate, two clamping grooves formed on the upper end of the outer ring of the one-way bearing, the lower ends of the two clamping plates being located in the corresponding clamping grooves, and a lifting element installed on the side wall of the sliding plate; The lifting element includes a plain bearing provided on the side wall of the sliding plate, a side plate provided on the outer ring of the plain bearing, two lifting rods provided at the lower end of the side plate, two liquid level cylinders provided in the fixed base plate, and piston plates provided at the lower end of the two lifting rods, the two piston plates being slidably mounted on the inner walls of the corresponding liquid level cylinders, and a control member being installed between the two liquid level cylinders and the footboard; The control component includes a square groove provided at the upper end of the footboard, two return springs provided at the bottom end of the square groove, a trigger plate provided at the upper ends of the two return springs, the trigger plate being slidably installed in the square groove, a liquid dispensing block provided at the upper end of the movable plate located in the middle position, an infusion hole provided on the inner wall of the square groove, a first conduit provided between the infusion hole and the liquid dispensing block, and two second conduits provided between the liquid dispensing block and the two liquid level cylinders, the two liquid level cylinders being connected to the interior of the square groove via the second conduit and the first conduit.

2. The anti-pinch electric step according to claim 1, characterized in that: The first conduit and the second conduit are both corrugated hoses, and the square groove, the first conduit, the second conduit and the liquid distribution block are all filled with hydraulic oil.

3. The anti-pinch electric step according to claim 2, characterized in that: A plurality of anti-slip grooves are provided on the upper end of the trigger plate.

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