Step buffer, telescopic support and electric pedal

Abstract

The application discloses a hierarchical buffer, a telescopic support and an electric pedal. The hierarchical buffer is applied to the telescopic support of the electric pedal, and the front surface of the hierarchical buffer is in a wave shape. When first-stage compression buffering occurs, the wave crest of the wave shape is compressed to a certain extent. When second-stage compression buffering occurs, the wave crest of the wave shape is further compressed or the front surface of the wave shape is compressed to be close to a plane. When the telescopic support is in a retracted state, the hierarchical buffer generates the first-stage compression buffering, and a gap exists between the mounting seat of the telescopic support and the telescoping rod. When the telescopic support is in the retracted state and the telescoping rod bears a lifting force, the hierarchical buffer generates the second-stage compression buffering to eliminate the gap, so that the telescoping rod can abut against the mounting seat, and thus the telescopic support forms a rigid support body in the first direction and the second direction. In the above manner, the telescopic support provided by the application can be safely, conveniently and comfortably lifted when the telescopic support is in the retracted state.

Description

[0001] This invention application is a divisional application. The information of its parent application is as follows: the application date is January 24, 2024, the application number is CN202410094636.0, the patent name is "telescopic bracket, electric pedal and vehicle", and the applicant is Zhongshan Aoduo Electronic Technology Co., Ltd. Technical Field

[0002] This application relates to the automotive field, and in particular to a graded buffer, a telescopic bracket, and an electric pedal. Background Technology

[0003] On some vehicles with higher chassis, such as SUVs and off-road vehicles, running boards are usually installed on the side skirts to assist passengers in easily entering and exiting the cabin. Running boards generally include fixed running boards and electric running boards. Electric running boards are popular because they can automatically extend when the door is opened to assist passengers in easily entering and exiting the cabin, and automatically retract when the door is closed to ensure vehicle passability and aesthetics. However, when electric running boards are installed, the retracted running boards can obstruct the lifting points on the side beams of the chassis, making it difficult to lift the vehicle and consequently affecting vehicle maintenance. Summary of the Invention

[0004] The present application provides a telescopic bracket, an electric pedal, and a vehicle, which can solve the problem in the prior art that when the electric pedal is installed on a vehicle and is in the retracted state, it will block the lifting position on the side beam of the vehicle chassis, thus making it difficult to lift the vehicle and affecting the maintenance of the vehicle.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution: A telescopic bracket is provided for use with an electric pedal. The telescopic bracket includes: a mounting base for fixing to the chassis of a vehicle; a telescopic rod for connecting to the pedal body of the electric pedal; a first swing arm, one end of which is hinged to the telescopic rod and the other end of which is hinged to the mounting base; a second swing arm, one end of which is hinged to the telescopic rod and the other end of which is hinged to the mounting base; and a graded buffer member disposed between the first swing arm and the second swing arm and fixed to either the first or second swing arm. When the telescopic bracket is in a retracted state, the graded buffer member generates a first-level compression buffer, and a gap exists between the mounting base and the telescopic rod. When the telescopic bracket is in a retracted state and the telescopic rod is subjected to a lifting force, the graded buffer member generates a second-level compression buffer to eliminate the gap, allowing the telescopic rod to abut against the mounting base, thereby forming a rigid support in a first direction and a second direction. The first direction is parallel to the direction of the lifting force, and the second direction is parallel to the telescopic rod's extension direction and perpendicular to the first direction.

[0006] In one embodiment, the graded buffer is fixed to the second swing arm. The graded buffer includes: a graded buffer portion disposed between the first swing arm and the second swing arm and facing the first swing arm; and a mounting portion connected to the side of the graded buffer portion away from the first swing arm and fixed to the second swing arm.

[0007] In one embodiment, the surface of the graded buffer portion facing the first swing arm is wavy.

[0008] In one embodiment, the mounting portion is provided with elastic ribs on its periphery, and the second swing arm is recessed on the side facing the first swing arm away from the first swing arm to form a slot. The mounting portion is accommodated in the slot and is held and connected to the slot by the compression deformation of the elastic ribs.

[0009] In one embodiment, the graded buffer member has a stepped hole that passes through the graded buffer portion and the mounting portion. The second swing arm is recessed on the side facing the first swing arm away from the first swing arm to form a groove. The bottom of the groove has a threaded hole. The mounting portion is accommodated in the groove. The telescopic bracket also includes a bolt. The bolt passes through the stepped hole and is screwed into the threaded hole, so that the graded buffer member is fixed to the second swing arm.

[0010] In one embodiment, the telescopic bracket further includes a capped bushing, which passes through and is held in the stepped hole, and the bolt passes through and abuts against the capped bushing and is screwed into the threaded hole.

[0011] In one embodiment, the telescopic rod includes a pedal connector, a first hinged side plate, and a base plate. The pedal connector is used to connect to the pedal body. Two first hinged side plates are fixed side-by-side to the side of the pedal connector facing away from the pedal body. The base plate is fixed between the two first hinged side plates and disposed close to the pedal connector, and the base plate is used to bear the lifting force. A first swing arm is disposed between the two first hinged side plates and hinged at one end to the two first hinged side plates. A second swing arm is disposed between the two first hinged side plates and hinged at one end to the two first hinged side plates. The mounting base includes a chassis connecting plate and a second hinged side plate. The chassis connecting plate is used to fix to the chassis of the vehicle, and the two second hinged side plates are fixed side-by-side to the chassis. The connecting plate faces the telescopic rod on one side; the first swing arm is disposed between the two second hinged side plates and its other end is hinged to the two second hinged side plates, the second swing arm is disposed between the two second hinged side plates and its other end is hinged to the two second hinged side plates; the first hinged side plate has a first abutment surface on the side facing the mounting base, and the second hinged side plate has a second abutment surface on the side facing the telescopic rod; wherein when the telescopic bracket is in the retracted state, there is a gap between the first abutment surface and the second abutment surface; wherein when the telescopic bracket is in the retracted state and the base plate bears the lifting force, the first abutment surface can abut against the second abutment surface, so that the telescopic bracket forms the rigid support body in the first direction.

[0012] In one embodiment, the first contact surface is parallel to the second contact surface, and both the first contact surface and the second contact surface extend obliquely upward along the negative direction of the second direction and form a first angle with the lifting and receiving surface of the base plate.

[0013] In one embodiment, the first included angle is greater than 5° and less than 20°.

[0014] In one embodiment, the first hinged side plate has a third abutment surface at the end facing the mounting base and near the pedal connector, the third abutment surface being smoothly connected to the first abutment surface; the second hinged side plate has a fourth abutment surface at the end facing the telescopic rod and near the pedal connector, the fourth abutment surface being smoothly connected to the second abutment surface; wherein when the telescopic bracket is in the retracted state, there is another gap between the third abutment surface and the fourth abutment surface; wherein when the telescopic bracket is in the retracted state and the base plate bears the lifting force, the third abutment surface can abut against the fourth abutment surface, so that the telescopic bracket forms the rigid support body in the second direction.

[0015] In one embodiment, the third contact surface is parallel to the fourth contact surface, and both the third and fourth contact surfaces extend obliquely upward along the positive direction of the second direction and form a second angle with the lifting and receiving surface of the base plate.

[0016] In one embodiment, the second included angle is greater than 45° and less than 90°.

[0017] In one embodiment, each of the first hinged side plates has two first through holes with parallel axes at the end away from the pedal connector. The first and second swing arms each have a second through hole at one end. The drive telescopic bracket further includes a transmission shaft. One transmission shaft passes through the second through hole at one end of the first swing arm, is driven to the first swing arm, and its two ends pass through the first through holes of the two first hinged side plates respectively, and is rotatably connected to the first hinged side plate. The other transmission shaft passes through the second through hole at one end of the second swing arm, is driven to the second swing arm, and its two ends pass through the first through holes of the two first hinged side plates respectively, and is rotatably connected to the first hinged side plate. The plane containing the axes of the two first through holes of the first hinged side plate extends obliquely upward along the negative direction of the second direction and forms a third angle with the lifting bearing surface of the base plate.

[0018] In one embodiment, the third included angle is greater than 10° and less than 45°.

[0019] In one embodiment, each of the second hinged side plates is provided with a third through hole and a first through hole with mutually parallel axes. The other end of the first swing arm is provided with a fourth through hole, and the other end of the second swing arm is provided with a second through hole. The telescopic bracket further includes a drive shaft, which passes through the fourth through hole at the other end of the first swing arm, is drivenly connected to the first swing arm, and has its two ends respectively passing through the third through holes of the two second hinged side plates and is rotatably connected to the second hinged side plates. Another transmission shaft passes through the second through hole at the other end of the second swing arm, is drivenly connected to the second swing arm, and has its two ends respectively passing through the first through holes of the two second hinged side plates and is rotatably connected to the second hinged side plates. The telescopic bracket further includes an elastic coupling, one end of which is connected to the drive shaft, and the other end of which is used to connect to the output shaft of the drive device.

[0020] In one embodiment, the gap is less than or equal to 5 mm.

[0021] Another technical solution adopted in this application is: providing an electric pedal, the electric pedal comprising: a pedal body; a drive telescopic bracket connected to one end of the pedal body; a driven telescopic bracket connected to the other end of the pedal body; and a drive device drivenly connected to the drive telescopic bracket; wherein the drive telescopic bracket is any of the telescopic brackets described above, and the driven telescopic bracket is any of the telescopic brackets described above except for the embodiments including a drive shaft and an elastic coupling.

[0022] Another technical solution adopted in this application is to provide a vehicle, which includes the above-mentioned electric pedal.

[0023] The beneficial effects of this application are as follows: Unlike existing technologies, in the solution of this application, when the telescopic bracket is in the retracted state and the telescopic rod bears the lifting force, the graded buffer generates a second-level compression buffer, allowing the telescopic rod to abut against the mounting base, thereby forming a rigid support in both the first and second directions. The second-level compression buffer allows the telescopic rod to abut against the mounting base more easily without generating significant noise or force on the first swing arm. The formation of the rigid support in the second direction ensures that the telescopic bracket will not unfold during lifting and will not transmit excessive torsional force to the drive device through the first swing arm. Therefore, when the telescopic bracket is in the retracted state, it can be lifted safely, conveniently, and comfortably, thus enabling vehicles equipped with electric pedals including this telescopic bracket to be lifted safely, conveniently, and comfortably, facilitating maintenance and repair. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the telescopic bracket provided in the embodiment of this application when it is in the retracted state; Figure 2 This is a top view of the telescopic bracket provided in the embodiment of this application when it is in the retracted state; Figure 3 This is a front view of the telescopic bracket provided in the embodiment of this application when it is in the retracted state; Figure 4 yes Figure 2 A cross-sectional view of the telescopic bracket at point AA; Figure 5 yes Figure 4 A magnified view of the telescopic support in area M; Figure 6 This is an exploded view of the telescopic support provided in the embodiments of this application; Figure 7This is a schematic diagram of the structure of the graded buffer provided in the embodiments of this application; Figure 8 This is a schematic diagram of the structure of the second swing arm provided in the embodiment of this application; Figure 9 This is a schematic diagram of the structure of the telescopic rod provided in the embodiment of this application; Figure 10 This is a schematic diagram of the mounting base provided in the embodiments of this application; Figure 11 This is a schematic diagram of the electric pedal in the retracted state according to an embodiment of this application; Figure 12 This is a schematic diagram of the vehicle structure provided in the embodiments of this application; Explanation of reference numerals in the attached drawings: 100-Telescopic bracket, 110-Mounting base, 111-Chassis connecting plate, 112-Second hinged side plate, 1121-Second contact surface, 1122-Fourth contact surface (i.e., the second inclined portion of the second contact surface), 120-Telescopic rod, 121-Pedal connector, 122-First hinged side plate, 1221-First contact surface, 1222-Third contact surface (i.e., the second inclined portion of the first contact surface), 123-Base plate, 1231-Lifting bearing surface, 130-First swing arm, 140-Second swing arm, 141-Slot, 1411-Threaded hole, 150-Graded buffer component, 15 1-Graded buffer section, 152-Mounting section, 1521-Elastic rib, 153-Stepped hole, 160-Capped bushing, 170-Drive shaft, 180-Drive shaft, 190-Elastic coupling, Z-First direction, X-Second direction, B-Bolt, C-Clearance, F-Lifting force, α-First included angle, θ-Second included angle, β-Third included angle, H1-First through hole, H2-Second through hole, H3-Third through hole, H4-Fourth through hole, 1000-Electric pedal, 200-Pedal body, 300-Drive telescopic bracket, 400-Driven telescopic bracket, 500-Drive device, 2000-Vehicle. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] refer to Figure 3 and Figure 4 Wherein, "first direction" refers to the direction indicated by the Z-axis, and "second direction" refers to the direction indicated by the X-axis. "Up," "lifting direction," and "positive direction of the first direction" refer to the direction indicated by the Z-axis arrow, while "down" and "negative direction of the first direction" refer to the direction away from the direction indicated by the Z-axis arrow. "Right," "extend or unfold direction," and "positive direction of the second direction" refer to the direction indicated by the X-axis arrow, while "left," "retract direction," and "negative direction of the second direction" refer to the direction away from the direction indicated by the X-axis arrow.

[0030] The telescopic bracket provided in this application is applied to an electric pedal. The telescopic bracket includes: a mounting base for fixing to the chassis of a vehicle; a telescopic rod for connecting to the pedal body of the electric pedal; a first swing arm, one end of which is hinged to the telescopic rod and the other end of which is hinged to the mounting base; a second swing arm, one end of which is hinged to the telescopic rod and the other end of which is hinged to the mounting base; and a graded buffer member disposed between the first swing arm and the second swing arm and fixed to either the first or the second swing arm. When the telescopic bracket is in a retracted state, the graded buffer member generates a first-level compression buffer, and a gap exists between the mounting base and the telescopic rod. When the telescopic bracket is in a retracted state and the telescopic rod is subjected to a lifting force, the graded buffer member generates a second-level compression buffer to eliminate the gap, allowing the telescopic rod to abut against the mounting base, thereby forming a rigid support in a first direction and a second direction. The first direction is parallel to the direction of the lifting force, and the second direction is parallel to the telescopic rod's extension direction and perpendicular to the first direction. When the telescopic bracket is in the retracted state and the telescopic rod bears the lifting force, the graded buffer generates a second-level compression buffer, allowing the telescopic rod to abut against the mounting base. This, in turn, forms a rigid support in both the first and second directions. The second-level compression buffer allows the telescopic rod to easily abut against the mounting base without generating significant noise or force on the first swing arm. The rigid support in the second direction ensures that the telescopic bracket will not unfold during lifting and will not transmit excessive torsional force to the drive device through the first swing arm. Therefore, when the telescopic bracket is in the retracted state, it can be lifted safely, conveniently, and comfortably, enabling vehicles equipped with electric pedals including this telescopic bracket to be lifted safely, conveniently, and comfortably, facilitating maintenance and repair.

[0031] Please refer to the following: Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 , Figure 1 This is a schematic diagram of the telescopic bracket provided in this application when it is in the retracted state. Figure 2 This is a top view of the telescopic bracket provided in the embodiment of this application when it is in the retracted state. Figure 4 yes Figure 2 A cross-sectional view of the telescopic bracket at point AA. Figure 5 yes Figure 4 A magnified view of the telescopic support in area M. Figure 6This is an exploded view of the telescopic bracket provided in an embodiment of this application. The telescopic bracket 100 may include, but is not limited to, a mounting base 110, a telescopic rod 120, a first swing arm 130, a second swing arm 140, and a graded buffer 150. The mounting base 110 is used to fix it to the chassis of a vehicle. The telescopic rod 120 is used to connect to the pedal body of an electric pedal. One end of the first swing arm 130 is hinged to the telescopic rod 120, and the other end of the first swing arm 130 is hinged to the mounting base 110. One end of the second swing arm 140 is hinged to the telescopic rod 120, and the other end of the second swing arm 140 is hinged to the mounting base 110. The graded buffer 150 is disposed between the first swing arm 130 and the second swing arm 140 and is fixed to the second swing arm 140. Wherein, when the telescopic bracket 100 is in the retracted state, the graded buffer 150 generates a first-level compression buffer to protect the first swing arm 130 and the second swing arm 140 and reduce noise, and there is a gap C between the mounting base 110 and the telescopic rod 120. When the telescopic bracket 100 is in the retracted state and the telescopic rod 120 is subjected to the lifting force F, the graded buffer 150 generates a second-stage compression buffer to eliminate the gap C, allowing the telescopic rod 120 to abut against the mounting base 110. This results in the telescopic bracket 100 forming a rigid support in the first direction Z and the second direction X. The first direction Z is parallel to the direction of the lifting force F. The second direction X is parallel to the telescopic direction of the telescopic rod 120 and perpendicular to the first direction Z. The second-stage compression buffer allows the telescopic rod 120 to abut against the mounting base 110 more easily without generating excessive noise or force on the first swing arm 130. The rigid support in the first direction Z allows the vehicle 2000 fixed to the mounting base 110 to be lifted along the direction of the lifting force F when the telescopic rod 120 is subjected to the lifting force F. The rigid support in the second direction X ensures that the telescopic bracket 100 will not unfold during lifting and will not transmit excessive torsional force to the drive device 500 through the first swing arm 130.

[0032] Optionally, the gap C between the mounting base 110 and the telescopic rod 120 is less than or equal to 5 mm, so that the telescopic rod 120 can more easily abut against the mounting base 110 and will not transmit excessive torsional force to the drive device 500.

[0033] Please refer to the following: Figure 2 , Figure 4 , Figure 6 , Figure 7 and Figure 8 , Figure 2 This is a top view of the telescopic bracket provided in the embodiment of this application when it is in the retracted state. Figure 4 yes Figure 2 A cross-sectional view of the telescopic bracket at point AA. Figure 6 This is an exploded view of the telescopic bracket provided in the embodiment of this application. Figure 7This is a schematic diagram of the structure of the graded buffer provided in the embodiments of this application. Figure 8 This is a schematic diagram of the structure of the second swing arm provided in this application embodiment. The graded buffer 150 may include, but is not limited to, the graded buffer portion 151 and the mounting portion 152. The graded buffer portion 151 is disposed between the first swing arm 130 and the second swing arm 140 and faces the first swing arm 130 to achieve elastic compression buffering. The surface of the graded buffer portion 151 facing the first swing arm 130 is wavy, so that when the first stage of compression buffering occurs, the wave crest of the wave shape is compressed to a certain extent, and when the second stage of compression buffering occurs, the wave crest of the wave shape is further compressed or the wavy surface is compressed to near a plane. The wavy arrangement of the surface of the graded buffer portion 151 facing the first swing arm 130 makes it easier for the telescopic rod 120 to abut against the mounting base 110 when the graded buffer 150 undergoes the second stage of compression buffering without generating large noise or force on the first swing arm 130, thus preventing the first swing arm 130 from transmitting excessive torsional force to the drive device 500 and damaging the drive device 500. Mounting part 152 is connected to the side of graded buffer part 151 opposite to the first swing arm 130 and fixed to the second swing arm 140. Elastic ribs 1521 are provided on the periphery of mounting part 152. Stepped holes 153 penetrating graded buffer part 151 and mounting part 152 are provided inside graded buffer member 150.

[0034] In other embodiments, the graded buffer 150 can be fixed to the first swing arm 130, and correspondingly, the graded buffer portion 151 faces the second swing arm 140, and the surface of the graded buffer portion 151 facing the second swing arm 140 is wavy.

[0035] Furthermore, the second swing arm 140 is recessed into a groove 141 on the side facing away from the first swing arm 130. The bottom of the groove 141 has a threaded hole 1411. The mounting part 152 is accommodated in the groove 141 and is held in place by the compression deformation of the elastic rib 1521. The telescopic bracket 100 also includes a bolt B. The bolt B passes through the stepped hole 153 and is screwed into the threaded hole 1411, thereby fixing the graded buffer 150 to the second swing arm 140.

[0036] Furthermore, the telescopic bracket 100 also includes a capped bushing 160. The capped bushing 160 passes through and is held in place by the stepped hole 153. The bolt B passes through, abuts against the capped bushing 160, and is screwed into the threaded hole 1411. The capped bushing 160 protects the graded buffer 150 and prevents deformation of the graded buffer 150 during installation.

[0037] Please refer to the following: Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 9 and Figure 10 , Figure 2 This is a top view of the telescopic bracket provided in the embodiment of this application when it is in the retracted state. Figure 3 This is a front view of the telescopic bracket provided in the embodiment of this application when it is in the retracted state. Figure 4 yes Figure 2 A cross-sectional view of the telescopic bracket at point AA. Figure 5 yes Figure 4 A magnified view of the telescopic support in area M. Figure 6 This is an exploded view of the telescopic bracket provided in the embodiment of this application. Figure 9 This is a schematic diagram of the telescopic rod provided in an embodiment of this application. Figure 10 This is a schematic diagram of the mounting base provided in an embodiment of this application. The telescopic rod 120 includes a pedal connector 121, a first hinged side plate 122, and a base plate 123. The pedal connector 121 is used to connect to the pedal body. Two first hinged side plates 122 are fixed side-by-side to the side of the pedal connector 121 facing away from the pedal body. The base plate 123 is fixed between the two first hinged side plates 122 and is disposed close to the pedal connector 121. The base plate 123 is used to bear the lifting force F. The mounting base 110 includes a chassis connecting plate 111 and a second hinged side plate 112. The chassis connecting plate 111 is used to fix to the chassis of the vehicle. Two second hinged side plates 112 are fixed side-by-side to the side of the chassis connecting plate 111 facing the telescopic rod 120.

[0038] Furthermore, the first swing arm 130 is disposed between the two first hinge side plates 122 and one end is hinged to the two first hinge side plates 122. The second swing arm 140 is disposed between the two first hinge side plates 122 and one end is hinged to the two first hinge side plates 122. The first swing arm 130 is disposed between the two second hinge side plates 112 and the other end is hinged to the two second hinge side plates 112. The second swing arm 140 is disposed between the two second hinge side plates 112 and the other end is hinged to the two second hinge side plates 112.

[0039] Furthermore, the first hinged side plate 122 has a first contact surface 1221 on the side facing the mounting base 110, and the second hinged side plate 112 has a second contact surface 1121 on the side facing the telescopic rod 120. Figures 3 to 5 As can be seen, the first contact surface 1221 and the second contact surface 1121 have a horizontal surface and a first inclined surface. When the telescopic bracket 100 is in the retracted state, a gap C exists between the first contact surface 1221 and the second contact surface 1121. When the telescopic bracket 100 is in the retracted state and the base plate 123 bears the lifting force F, the first contact surface 1221 can abut against the second contact surface 1121, making the telescopic bracket 100 a rigid support in the first direction Z, thereby allowing the vehicle fixed to the mounting base 110 to be lifted along the direction of the lifting force F.

[0040] Furthermore, the first hinged side plate 122 has a third contact surface 1222 (i.e., the second inclined portion of the first contact surface) at the end facing the mounting base 110 and near the pedal connector 121. The third contact surface 1222 is smoothly connected to the horizontal portion of the first contact surface 1221. The second hinged side plate 112 has a fourth contact surface 1122 (i.e., the second inclined portion of the second contact surface) at the end facing the telescopic rod 120 and near the pedal connector 121. The fourth contact surface 1122 is smoothly connected to the horizontal portion of the second contact surface 1121. When the telescopic bracket 100 is in the retracted state, there is another gap C between the third contact surface 1222 and the fourth contact surface 1122. When the telescopic bracket 100 is in the retracted state and the base plate 123 is subjected to the lifting force F, the third contact surface 1222 can abut against the fourth contact surface 1122, so that the telescopic bracket 100 forms a rigid support body in the second direction X, thereby preventing the telescopic bracket 100 from unfolding during the lifting process and preventing excessive torsional force from being transmitted to the drive device 500 through the first swing arm 130.

[0041] Furthermore, the first contact surface 1221 and the second contact surface 1121 are parallel, ensuring full contact between them. Both the first contact surface 1221 and the second contact surface 1121 extend obliquely upwards along the negative direction of the second direction X. Figures 3 to 5 As can be seen, the first inclined portion of the first contact surface 1221 and the first inclined portion of the second contact surface 1121 both extend obliquely upward in the negative direction of the second direction X, to conform to the direction of movement of the telescopic rod 120 when subjected to the lifting force F. The first inclined portion of the first contact surface 1221 and the first inclined portion of the second contact surface 1121 both form a first included angle α with the lifting receiving surface 1231 of the base plate 123. The third contact surface 1222 and the fourth contact surface 1122 are parallel, so that the third contact surface 1222 and the fourth contact surface 1122 fully abut against each other. The third contact surface 1222 (i.e., the second inclined portion of the second contact surface) and the fourth contact surface 1122 (i.e., the second inclined portion of the first contact surface) both extend obliquely upward in the positive direction of the second direction X, to increase the contact area where the telescopic rod 120 is locked in the retraction direction when subjected to the lifting force F. The third contact surface 1222 and the fourth contact surface 1122 both form a second included angle θ with the lifting bearing surface 1231 of the base plate 123. The lifting bearing surface 1231 of the base plate 123 refers to the surface of the base plate 123 that bears the lifting force F.

[0042] Optionally, the first included angle α is greater than 5° and less than 20° to better match the direction of movement of the telescopic rod 120 when subjected to the lifting force F. Specifically, the first included angle α can be 6°, 7°, 10°, 15°, 18°, 19°, etc. Optionally, the second included angle θ is greater than 45° and less than 90° to achieve better locking effect and force distribution. Specifically, the second included angle θ can be 46°, 47°, 50°, 55°, 60°, 70°, 80°, 89°, etc.

[0043] Furthermore, each of the first hinged side plates 122 has two first through holes H1 with parallel axes at one end away from the pedal connector 121. The first swing arm 130 and the second swing arm 140 each have a second through hole H2 at one end. The drive telescopic bracket 300 also includes a drive shaft 170. One drive shaft 170 passes through the second through hole H2 at one end of the first swing arm 130, is drivenly connected to the first swing arm 130, and its two ends pass through the first through holes H1 of the two first hinged side plates 122, respectively, and are rotatably connected to the first hinged side plates 122. The other drive shaft 170 passes through the second through hole H2 at one end of the second swing arm 140, is drivenly connected to the second swing arm 140, and its two ends pass through the first through holes H1 of the two first hinged side plates 122, respectively, and are rotatably connected to the first hinged side plates 122. The plane containing the axes of the two first through holes H1 of the first hinged side plate 122 extends obliquely upward along the negative direction of the second direction X, so that when the telescopic rod 120 is subjected to the lifting force F, it moves upward and retracts at the same time, and the plane containing the axes forms a third angle β with the lifting bearing surface 1231 of the base plate 123.

[0044] Optionally, the third included angle β is greater than 10° and less than 45° to ensure that when the telescopic rod 120 is subjected to the lifting force F, it moves in the retracting direction while moving upward, and does not transmit excessive torsional force to the drive device 500 through the first swing arm 130. Specifically, the third included angle β can be 11°, 12°, 14°, 16°, 20°, 25°, 30°, 35°, 43°, 44°, etc.

[0045] Furthermore, each of the second hinged side plates 112 is provided with a third through hole H3 and a first through hole H1 with mutually parallel axes. The other end of the first swing arm 130 is provided with a fourth through hole H4. The other end of the second swing arm 140 is provided with a second through hole H2. The telescopic bracket 100 also includes a drive shaft 180. The drive shaft 180 passes through the fourth through hole H4 at the other end of the first swing arm 130, is drivenly connected to the first swing arm 130, and its two ends pass through the third through holes H3 of the two second hinged side plates 112 respectively, and are rotatably connected to the second hinged side plates 112. Another drive shaft 170 passes through the second through hole H2 at the other end of the second swing arm 140, is drivenly connected to the second swing arm 140, and its two ends pass through the first through holes H1 of the two second hinged side plates 112 respectively, and are rotatably connected to the second hinged side plates 112.

[0046] Furthermore, the telescopic support 100 also includes a flexible coupling 190. One end of the flexible coupling 190 is connected to the drive shaft 180. The other end of the flexible coupling 190 is used to connect to the output shaft of the drive unit 500. The flexible coupling 190 is configured such that when the telescopic rod 120 is subjected to the lifting force F, the torsional force transmitted through the first swing arm 130 can be partially or completely absorbed by the flexible coupling 190, thus preventing excessive torsional force from damaging the drive unit 500.

[0047] The telescopic bracket 100 provided in this application is applied to an electric pedal. The telescopic bracket 100 includes: a mounting base 110 for fixing to the chassis of a vehicle; a telescopic rod 120 for connecting to the pedal body of the electric pedal; a first swing arm 130, one end of which is hinged to the telescopic rod 120 and the other end of which is hinged to the mounting base 110; a second swing arm 140, one end of which is hinged to the telescopic rod 120 and the other end of which is hinged to the mounting base 110; and a graded buffer 150, disposed between the first swing arm 130 and the second swing arm 140 and fixed to either the first swing arm 130 or the second swing arm 140; wherein the telescopic bracket 100 is in the position of In the retracted state, the graded buffer 150 generates a first-stage compression buffer, and a gap C exists between the mounting base 110 and the telescopic rod 120. When the telescopic bracket 100 is in the retracted state and the telescopic rod 120 is subjected to a lifting force F, the graded buffer 150 generates a second-stage compression buffer to eliminate the gap C, allowing the telescopic rod 120 to abut against the mounting base 110, thereby making the telescopic bracket 100 a rigid support in the first direction Z and the second direction X. The first direction Z is parallel to the direction of the lifting force F, and the second direction X is parallel to the telescopic direction of the telescopic rod 120 and perpendicular to the first direction Z. When the telescopic bracket 100 is in the retracted state and the telescopic rod 120 is subjected to the lifting force F, the graded buffer 150 generates a second-stage compression buffer, allowing the telescopic rod 120 to abut against the mounting base 110. This forms a rigid support body for the telescopic bracket 100 in the first direction Z and the second direction X. The second-stage compression buffer allows the telescopic rod 120 to abut against the mounting base 110 more easily without generating excessive noise or force on the first swing arm 130. The rigid support body in the second direction X ensures that the telescopic bracket 100 will not unfold during lifting and will not transmit excessive torsional force to the drive device 500 through the first swing arm 130. Therefore, when the telescopic bracket 100 is in the retracted state, it can be lifted safely, conveniently, and comfortably, thus enabling vehicles equipped with electric pedals including the telescopic bracket 100 to be lifted safely, conveniently, and comfortably for maintenance.

[0048] Please see Figure 11 , Figure 11This is a schematic diagram of the electric pedal in the retracted state according to an embodiment of this application. The electric pedal 1000 may include, but is not limited to, a pedal body 200, a drive telescopic bracket 300, a driven telescopic bracket 400, and a drive device 500. The drive telescopic bracket 300 is connected to one end of the pedal body 200. The driven telescopic bracket 400 is connected to the other end of the pedal body 200. The drive device 500 is drivenly connected to the drive telescopic bracket 300. The drive telescopic bracket 300 is the telescopic bracket 100 described in any of the above embodiments. The driven telescopic bracket 400, relative to the drive telescopic bracket 300 100, does not include a drive shaft 180 and a flexible coupling 190.

[0049] Please see Figure 12 , Figure 12 This is a structural schematic diagram of the vehicle provided in the embodiments of this application. The vehicle 2000 may include, but is not limited to, the electric pedal 1000.

[0050] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.

Claims

1. A progressive damping member for use in an electrically powered pedal, the progressive damping member comprising: Includes a graded buffer section and a mounting section; The front of the graded buffer section is wavy. When the first-level compression buffer occurs, the peak of the wave shape is compressed to a certain extent. When the second-level compression buffer occurs, the peak of the wave shape is further compressed or the front of the wave shape is compressed to near a plane. The mounting part is connected to the back side of the graded buffer part, and the front side and the back side are arranged opposite each other along the thickness direction of the graded buffer part.

2. The hierarchical cushioning element of claim 1, wherein, The graded buffer member is provided with at least one of elastic ribs and stepped holes. The elastic ribs are provided on the outer periphery of the mounting part, and the stepped holes are located inside the graded buffer member and penetrate the graded buffer part and the mounting part.

3. The hierarchical cushioning element of claim 2, wherein, A capped bushing is provided in the stepped hole. The capped bushing passes through and is held in the stepped hole. The capped bushing has a channel for threaded parts to pass through.

4. A telescopic support for an electrically powered scooter, characterized in that, include: Mounting bracket, used to secure to the chassis of a vehicle; A telescopic rod is used to connect to the pedal body of the electric pedal. The telescopic rod includes a base plate, which is disposed close to the pedal body and is used to bear the lifting force. The first swing arm has one end hinged to the telescopic rod and the other end hinged to the mounting base; The second swing arm is hinged at one end to the telescopic rod and at the other end to the mounting base; The graded buffer member according to any one of claims 1-3 is disposed between the first swing arm and the second swing arm, the mounting part is fixed to the second swing arm, and the front side of the graded buffer part faces the first swing arm; The telescopic rod has a first contact surface on the side facing the mounting base, and the mounting base has a second contact surface on the side facing the telescopic rod, with the first contact surface and the second contact surface being parallel. When the telescopic bracket is in the retracted state, the graded buffer generates the first level of compression buffer, there is a gap between the mounting base and the telescopic rod, and there is a gap between the first contact surface and the second contact surface; When the telescopic bracket is in the retracted state and the base plate is subjected to lifting force, the graded buffer generates a second-level compression buffer to eliminate the gap, so that the telescopic rod can abut against the mounting base, the first contact surface can abut against the second contact surface, thereby making the telescopic bracket form a rigid support body in the first direction and the second direction; The first direction is parallel to the direction of the lifting force, and the second direction is parallel to the extension and retraction direction of the telescopic rod and perpendicular to the first direction.

5. A telescoping support according to claim 4, wherein, The second swing arm is recessed on the side facing the first swing arm, away from the first swing arm, to form a groove. The mounting part is accommodated in the groove, and the bottom of the groove is provided with a threaded hole communicating with the groove; and / or, the gap is less than or equal to 5mm.

6. The telescoping support of claim 4, wherein, Both the first contact surface and the second contact surface include a horizontal surface and an inclined surface connected to one end of the horizontal surface. The inclined surface includes at least one of a first inclined surface and a second inclined surface. The first inclined surface extends obliquely upward along the second direction and near the center of the vehicle, and forms a first angle with the lifting bearing surface of the floor. The second inclined surface extends obliquely upward along the second direction and near the pedal body, and forms a second angle with the lifting bearing surface of the floor.

7. A telescoping support according to claim 6, wherein, The first included angle is greater than 5° and less than 20°, and the second included angle is greater than 45° and less than 90°.

8. The telescoping support of claim 4, wherein, The telescopic bracket also includes a transmission shaft and a drive shaft; The mounting base includes a chassis connecting plate and a second hinged side plate. The chassis connecting plate is used to fix to the chassis of the vehicle. The two second hinged side plates are fixed side by side to the side of the chassis connecting plate facing the telescopic rod. The mounting base is provided with a second abutment surface on the side facing the telescopic rod. The telescopic rod also includes a pedal connector and a first hinged side plate. The pedal connector is used to connect to the pedal body of the electric pedal. Two first hinged side plates are fixed side by side to the side of the pedal connector away from the pedal body. The base plate is fixed between the two first hinged side plates and is located close to the pedal connector. The first hinged side plate has a first abutment surface on the side facing the mounting base. Each of the first hinged side plates has two first through holes with parallel axes at one end away from the pedal connector, and the first and second swing arms each have a second through hole at one end. Each of the second hinged side plates is provided with a third through hole and a first through hole with parallel axes; the other end of the first swing arm is provided with a fourth through hole; and the other end of the second swing arm is provided with a second through hole. The drive shaft passes through a second through hole at one end of the first swing arm, is driven and connected to the first swing arm, and its two ends pass through the first through holes of the two first hinge side plates respectively, and are rotatably connected to the first hinge side plates. Another drive shaft passes through a second through hole at one end of the second swing arm, is driven to connect with the second swing arm, and passes through the first through holes of the two first hinge side plates at both ends, and is rotatably connected to the first hinge side plates. Another drive shaft passes through a second through hole at the other end of the second swing arm, is driven and connected to the second swing arm, and has its two ends respectively passing through the first through holes of the two second hinge side plates, and is rotatably connected to the second hinge side plates; The drive shaft passes through the fourth through hole at the other end of the first swing arm, is driven and connected to the first swing arm, and its two ends pass through the third through holes of the two second hinge side plates respectively, and is rotatably connected to the second hinge side plates. The plane containing the axes of the two first through holes of the first hinged side plate extends obliquely upward along the second direction towards the center of the vehicle, and forms a third angle with the lifting and receiving surface of the bottom plate.

9. A telescoping support according to claim 8, wherein, The third included angle is greater than 10° and less than 45°; and / or, the telescopic bracket further includes a flexible coupling, one end of which is connected to the drive shaft, and the other end of which is used to connect to the output shaft of the drive device.

10. An electrically powered pedal characterized in that, include: pedal body; A telescopic support is driven and connected to one end of the pedal body; A driven telescopic bracket is connected to the other end of the pedal body; The drive unit is connected to the drive telescopic bracket. Wherein, the driving telescopic bracket is the telescopic bracket as described in any one of claims 1 to 9, and the driven telescopic bracket is the telescopic bracket as described in any one of claims 1 to 9.

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