Electric pedal device and automobile

Abstract

An electric pedal device comprises a mounting base, a driving part, a telescopic part and a pedal. The driving part comprises a driving shaft and a bracket fixedly connected with the mounting base, and further comprises a driving motor, a planetary reducer, a worm and a worm wheel which are mounted on the bracket; the driving motor, the planetary reducer and the worm are sequentially in transmission connection, the worm is in meshing transmission connection with the worm gear, and the worm gear drives the driving shaft to rotate; the telescopic part is mounted on the mounting base, and the telescopic part and the mounting base form a four-bar mechanism; the pedal is installed on the telescopic part, the driving shaft drives the telescopic part to swing, and the telescopic part drives the pedal to be unfolded or folded. The utility model further relates to an automobile provided with the electric pedal device. According to the utility model, the cost of the device is reduced, the service life of the device is prolonged, and the height of the device is reduced, so that a vehicle with a low chassis can be installed.

Description

Technical Field

[0001] The utility model relates to an electric pedal for a car, in particular to an electric pedal device and also to a car. Background Art

[0002] With the continuous advancement of intelligence, the pedal devices designed to facilitate people getting on and off the vehicle are also developing in a smarter direction.

[0003] In order to provide sufficient supporting force for the pedal, most pedal devices in the prior art are driven by dual motors, and the motors are subjected to secondary reduction to increase the torque of the pedals. The motors are first connected to a worm gear mechanism and then to a planetary gear reduction pair.

[0004] The above scheme has the following problems: 1. The number and type of motors lead to a high cost of the pedal device: Although the dual motors and the existing drive method can provide sufficient support for the pedal, the deceleration they can achieve is relatively small, and it is necessary to select a motor with higher power. The number and type of motors have a great impact on the size and cost of the pedal device. 2. The pedal is directly connected to the planetary gear reduction pair. When the pedal is subjected to instantaneous force, the planetary gear reduction is easily damaged when it is impacted by the force, which affects the service life of the pedal device.

[0005] In addition, the pedal device in the prior art is mainly used on vehicles with high chassis. Its vertical height is too high and cannot be adapted to vehicles with low chassis to meet the needs of children, the elderly and other groups. The pedal device is also easily scratched when the vehicle is driving on complex road conditions.

[0006] In summary, the existing pedal device has the problems of high cost and excessive vertical height of the device. Utility Model Content

[0007] In view of the technical problems existing in the prior art, the purpose of the utility model is to provide an electric pedal device with low cost and low vertical height.

[0008] Another object of the utility model is to provide a car equipped with an electric pedal device.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] An electric pedal device comprises a mounting base, a driving part, a telescopic part and a pedal; the driving part comprises a driving shaft, a bracket fixedly connected to the mounting base, and also comprises a driving motor, a planetary reducer, a worm and a worm wheel mounted on the bracket; the driving motor, the planetary reducer and the worm are sequentially connected in transmission, the worm is meshingly connected with the turbine, and the worm wheel drives the driving shaft to rotate; the telescopic part is mounted on the mounting base and forms a four-bar linkage with the mounting base; the pedal is mounted on the telescopic part, the driving shaft drives the telescopic part to swing, and the telescopic part drives the pedal to unfold or fold.

[0011] As a preferred embodiment, the bracket includes a power chamber and a worm gear chamber which are interconnected, and the worm gear chamber is located in the rear section of the power chamber; the drive motor and the planetary reducer are both fixed in the power chamber, the worm is installed in the power chamber through a bearing, and the worm gear is arranged in the worm gear chamber.

[0012] As a preferred embodiment, the telescopic part includes a front transmission arm, a lower swing arm, and a rear transmission arm; the upper end of the front transmission arm is rotatably connected to the mounting base and fixedly connected to the drive shaft, the lower end of the front transmission arm is hinged to the front end of the lower swing arm, the middle part of the lower swing arm is hinged to the lower end of the rear transmission arm, and the upper end of the rear transmission arm is hinged to the mounting base; the pedal is installed at the rear end of the lower swing arm.

[0013] As a preferred embodiment, the lower swing arm includes a mounting section and an extension section which are arranged obliquely to each other, the front transmission arm is connected to the front end of the mounting section, and the rear transmission arm is connected to the rear end of the mounting section.

[0014] As a preferred embodiment, the number of pedals is one, and the length direction is arranged along the left-right direction; the number of mounting bases is two, the number of telescopic parts is two, and the mounting bases and the telescopic parts are arranged in one-to-one correspondence; the number of driving parts is one, which is connected to one group of mounting bases and telescopic parts.

[0015] As a preferred embodiment, the pedal includes a connecting section and a pedal section, the connecting section is located in the front and upper part of the pedal section; a T-shaped slot is opened at the lower end of the connecting section and runs through along the length direction, and the T-shaped clamping block is embedded in the T-shaped slot; a connecting slot is provided above the rear end of the lower swing arm, and the connecting block is arranged in the connecting slot; the bolt passes through the lower swing arm and the connecting block in sequence, and is screwed into the T-shaped clamping block, thereby fixing the lower swing arm and the pedal together.

[0016] As a preferred embodiment, the pedal section is a hollow structure with reinforcing ribs provided inside.

[0017] As a preferred embodiment, the upper end surface of the pedal section is provided with a plurality of anti-slip strips.

[0018] A car is equipped with an electric pedal device.

[0019] The utility model has the following advantages:

[0020] 1. The planetary reducer is arranged between the drive motor and the worm gear mechanism. On the one hand, the reduction ratio can be increased and a lower-power motor can be selected, which is beneficial to reducing the cost of the device. On the other hand, the planetary reducer is connected to the drive shaft through the worm gear and worm. When the pedal is subjected to instantaneous force, the planetary gear is not easily damaged. This driving method can protect the planetary gear and thus ensure the service life of the pedal device.

[0021] 2. The specific layout of the design driving part can effectively reduce the height of the device itself, so that the electric pedal device is not only suitable for vehicles with high chassis, but also can be installed on vehicles with low chassis, and has a wide range of applications.

[0022] 3. The drive unit is basically wrapped by a bracket that matches its appearance, with a compact structure and effective protection of internal parts.

[0023] 4. A four-link telescopic part is designed to convert the rotation of the drive shaft into the swing of the connecting rod, thereby driving the pedal to unfold or fold, and at the same time driving the telescopic part to unfold or fold, with a simple structure and a compact overall size.

[0024] 5. Design multiple sets of mounting bases and telescopic parts to ensure stable support of the pedals.

[0025] 6. The pedal is set to a hollow structure and is equipped with reinforcing ribs to reduce the weight of the pedal while ensuring rigidity.

[0026] 7. Anti-slip strips are set on the pedals to ensure safe use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a perspective view of the electric step device in an unfolded state.

[0028] Figure 2 It is a three-dimensional diagram from another perspective of the electric step device in the unfolded state.

[0029] Figure 3 It is a top view of the electric step device in the unfolded state.

[0030] Figure 4 It is a schematic diagram of the structure of the drive unit.

[0031] Figure 5 This is a disassembled diagram of the drive unit.

[0032] Figure 6 This is a partial enlarged view of the drive unit.

[0033] Figure 7 It is a three-dimensional diagram of the telescopic part.

[0034] Figure 8 It is a diagram of the electric step device in a folded state.

[0035] Fig. 9This is a diagram of the electric step device in an expanded state.

[0036] Fig.10 It is a cross-sectional view of a planetary reduction gearbox.

[0037] Fig.11 It is a schematic diagram of the structure of the driving part of the second embodiment and the third embodiment.

[0038] Fig.12 This is a diagram of the electric pedal device of the second embodiment in a folded state.

[0039] Fig.13 This is a diagram of the electric pedal device of the third embodiment in a folded state.

[0040] Among them, 1 is a mounting base, 2 is a driving part, 3 is a telescopic part, 4 is a pedal, 5 is a T-shaped clamping block, 6 is a connecting block, and 7 is a bolt.

[0041] 2-1 is the driving motor, 2-2 is the planetary reducer, 2-3 is the worm, 2-4 is the worm wheel, 2-5 is the driving shaft, and 2-6 is the bracket.

[0042] 3-1 is the front transmission arm, 3-2 is the lower swing arm, 3-3 is the rear transmission arm, 3-2-1 is the installation section, and 3-2-2 is the extension section.

[0043] 4-1 is a connecting section, 4-2 is a pedal section, 4-3 is a reinforcing rib, and 4-4 is an anti-slip strip. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below in conjunction with specific implementation methods.

[0045] Figure 1-10 1 is an accompanying drawing of Embodiment 1, Fig.11 Figures for Embodiment 2 and Embodiment 3, Fig.12 This is the accompanying drawing of Embodiment 2, Fig.13 This is an accompanying drawing of Embodiment 3.

[0046] Embodiment 1

[0047] An electric pedal device includes a mounting base, a driving part, a telescopic part, and a pedal; the driving part includes a driving shaft, a bracket fixedly connected to the mounting base, and also includes a driving motor, a planetary reducer, a worm, and a worm wheel mounted on the bracket; the driving motor, the planetary reducer, and the worm are sequentially connected in transmission, the worm is meshed with the turbine in transmission connection, and the worm wheel drives the driving shaft to rotate; the telescopic part is mounted on the mounting base and forms a four-bar linkage with the mounting base; the pedal is mounted on the telescopic part, the driving shaft drives the telescopic part to swing, and the telescopic part drives the pedal to unfold or fold. In this embodiment, the worm wheel is arranged below the worm.

[0048] The bracket includes a power chamber and a worm gear chamber which are interconnected, and the worm gear chamber is located at the rear section of the power chamber; the drive motor and the planetary reducer are both fixed in the power chamber, the worm is installed in the power chamber through a bearing, and the worm gear is arranged in the worm gear chamber.

[0049] The telescopic part includes a front transmission arm, a lower swing arm, and a rear transmission arm; the upper end of the front transmission arm is rotatably connected to the mounting base and fixedly connected to the drive shaft, the lower end of the front transmission arm is hinged to the front end of the lower swing arm, the middle part of the lower swing arm is hinged to the lower end of the rear transmission arm, and the upper end of the rear transmission arm is hinged to the mounting base; the pedal is installed at the rear end of the lower swing arm.

[0050] The lower swing arm comprises a mounting section and an extension section which are arranged obliquely to each other, the front transmission arm is connected to the front end of the mounting section, and the rear transmission arm is connected to the rear end of the mounting section.

[0051] There is one pedal, and the length direction is arranged along the left-right direction; there are two mounting bases and two telescopic parts, and the mounting bases and the telescopic parts are arranged one by one; there is one driving part, which is connected to one set of mounting bases and telescopic parts. In this embodiment, the driving part is arranged at the telescopic part on the right side of the pedal.

[0052] The pedal includes a connecting section and a pedal section, wherein the connecting section is located above and in front of the pedal section; a T-shaped slot running through the lower end of the connecting section is provided along the length direction, and a T-shaped clamping block is embedded in the T-shaped slot; a connecting slot is provided above the rear end of the lower swing arm, and the connecting block is arranged in the connecting slot; bolts pass through the lower swing arm and the connecting block in sequence, and are screwed into the T-shaped clamping block, thereby fixing the lower swing arm and the pedal in connection.

[0053] The pedal section is a hollow structure with reinforcing ribs inside.

[0054] The upper end surface of the pedal section is provided with a plurality of anti-skid strips. In the present embodiment, the anti-skid strips are arranged along the entire length direction of the pedal to improve the safety of getting on and off the vehicle.

[0055] The operation mode of the utility model is as follows:

[0056] The initial state is the folded state, such as Figure 8 As shown, the front transmission arm extends forward to a horizontal state, the rear transmission arm is inclined from the upper rear to the lower front, the mounting section of the lower swing arm is inclined from the upper front to the lower rear, and the extension section of the lower swing arm is arranged horizontally backward.

[0057] When unfolding, the drive motor starts and the motor output shaft rotates. The motor output shaft drives the worm to rotate through the planetary reducer, and the planetary reducer reduces the speed of the worm. The worm drives the worm wheel to rotate, and the worm wheel drives the drive shaft to rotate, increasing the torque at the same time. The drive shaft rotates, driving the front transmission arm to swing downward and backward from a forward horizontal state. Under the action of the four-bar linkage, the lower swing arm swings, driving the pedal to extend downward and backward to complete the unfolding.

[0058] Expanded state Fig. 9 As shown, the front transmission arm is inclined from the front upper part to the rear lower part, the rear transmission arm is inclined from the front upper part to the rear lower part, the mounting section of the lower swing arm is inclined from the front upper part to the rear lower part, and the extension section of the lower swing arm is arranged horizontally backward.

[0059] When folding, the drive motor starts and the motor output shaft rotates in the reverse direction. The motor output shaft drives the worm to rotate in the reverse direction through the planetary reducer, and the planetary reducer reduces the speed of the worm. The worm drives the worm wheel to rotate in the reverse direction, and the worm wheel drives the drive shaft to rotate in the reverse direction, while increasing the torque. The drive shaft rotates in the reverse direction, driving the front transmission arm to swing upward and forward. Under the action of the four-bar linkage, the lower swing arm swings in the reverse direction, driving the pedal to retract upward and forward to complete the folding.

[0060] A planetary reducer is arranged at the rear end of the motor. The planetary reducer has a small force load and can set a larger reduction ratio with a smaller space requirement. The worm gear reducer can bear the external load. The planetary reducer has a low load and is not easily damaged.

[0061] Embodiment 2

[0062] In this embodiment, the worm wheel is arranged above the worm, and the driving part is arranged at the telescopic part on the left side of the pedal. Other arrangements are the same as those in the first embodiment.

[0063] Embodiment 3

[0064] In this embodiment, the driving part is arranged at the telescopic part on the right side of the pedal, and other arrangements are the same as those of the second embodiment.

[0065] Embodiment 4

[0066] A car is equipped with an electric pedal device according to the first embodiment.

[0067] In addition to the above-mentioned embodiments, it is possible to use only one set of mounting base and telescopic part structure that is wider in the left and right directions, rather than two sets of mounting base and telescopic part structures. These variations are all within the protection scope of the present utility model.

[0068] In the description of the above embodiments, the terms "upper", "lower", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0069] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An electric pedal device, characterized in that: It includes a mounting base, a driving part, a telescopic part, and a pedal; the driving part includes a driving shaft, a bracket fixedly connected to the mounting base, and also includes a driving motor, a planetary reducer, a worm, and a worm wheel installed on the bracket; the driving motor, the planetary reducer, and the worm are sequentially connected in transmission, the worm is meshed and connected with the turbine, and the worm wheel drives the driving shaft to rotate; The telescopic part is installed on the mounting base and forms a four-bar linkage with the mounting base; The pedal is installed on the telescopic part, the driving shaft drives the telescopic part to swing, and the telescopic part drives the pedal to unfold or fold.

2. An electric pedal device according to claim 1, characterized in that: The bracket includes a power chamber and a worm gear chamber which are interconnected, and the worm gear chamber is located at the rear section of the power chamber; the drive motor and the planetary reducer are both fixed in the power chamber, the worm is installed in the power chamber through a bearing, and the worm gear is arranged in the worm gear chamber.

3. An electric pedal device according to claim 1, characterized in that: The telescopic part includes a front transmission arm, a lower swing arm, and a rear transmission arm; the upper end of the front transmission arm is rotatably connected to the mounting base and fixedly connected to the drive shaft, the lower end of the front transmission arm is hinged to the front end of the lower swing arm, the middle part of the lower swing arm is hinged to the lower end of the rear transmission arm, and the upper end of the rear transmission arm is hinged to the mounting base; the pedal is installed at the rear end of the lower swing arm.

4. An electric pedal device according to claim 3, characterized in that: The lower swing arm comprises a mounting section and an extension section which are arranged obliquely to each other, the front transmission arm is connected to the front end of the mounting section, and the rear transmission arm is connected to the rear end of the mounting section.

5. An electric pedal device according to claim 3, characterized in that: There is one pedal, and its length direction is arranged along the left-right direction; there are two mounting bases, and two telescopic parts, and the mounting bases and the telescopic parts are arranged one by one; there is one driving part, and it is connected to one set of mounting bases and telescopic parts.

6. An electric pedal device according to claim 5, characterized in that: The pedal includes a connecting section and a pedal section, wherein the connecting section is located above and in front of the pedal section; a T-shaped slot running through the lower end of the connecting section is provided along the length direction, and a T-shaped clamping block is embedded in the T-shaped slot; a connecting slot is provided above the rear end of the lower swing arm, and the connecting block is arranged in the connecting slot; bolts pass through the lower swing arm and the connecting block in sequence, and are screwed into the T-shaped clamping block, thereby fixing the lower swing arm and the pedal in connection.

7. An electric pedal device according to claim 6, characterized in that: The pedal section is a hollow structure with reinforcing ribs inside.

8. An electric pedal device according to claim 6, characterized in that: The upper end surface of the pedal section is provided with a plurality of anti-slip strips.

9. A car, characterized in that: An electric pedal device according to any one of claims 1 to 8 is installed.

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