Driving end side treading connecting rod mechanism, side treading assembly and vehicle

Abstract

The invention provides a driving end side treading connecting rod mechanism, a side treading assembly and a vehicle, and relates to the technical field of vehicle parts, the driving end side treading connecting rod mechanism comprises a first rack, a first connecting plate, a second connecting plate, a first connecting rod, a first pin shaft and a locking structure, one end of the first connecting plate is used for being rotationally connected with a first rack through a driving shaft, one end of the second connecting plate is rotationally connected with the first rack through a first pin shaft, and the other end of the first connecting plate and the other end of the second connecting plate are rotationally connected with a first connecting rod through first pin shafts correspondingly. One end of the first connecting rod away from the first connecting plate is connected with the side pedal body; a mounting groove is formed in the first connecting plate, and the locking structure is used for being separated from the mounting groove so as to be separated from the driving shaft when the side pedal body is manually withdrawn. According to the invention, the collision injury of the side pedal assembly with obstacles and pedestrians when the side pedal assembly fails and cannot be retracted electrically can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle parts, and in particular to a driving end side step connecting rod mechanism, a side step assembly and a vehicle. Background Art

[0002] With the development of automobile technology, in order to improve the convenience of drivers and passengers getting on and off the vehicle, some models with higher chassis have been equipped with intelligent side steps.

[0003] In the current related technologies, the intelligent side step, such as the side step assembly, mainly includes a driving device, a side step body and a driving-end side step connecting rod mechanism. The side step body is installed on the vehicle body through the driving-end side step connecting rod mechanism. The driving device is connected to the driving-end side step connecting rod mechanism, and is used to drive the driving-end side step connecting rod mechanism to drive the side step body to expand or retract relative to the vehicle body.

[0004] When the side step assembly is in the deployed state and cannot be electrically retracted by the driving device due to, for example, an electronic control failure, the side step assembly will have at least the following problems. For example, the side step assembly will not only reduce the height of the chassis from the ground when in the deployed state, but also increase the width of the vehicle. If the vehicle is driving at this time, obstacles on the road surface can easily hit the driving end side step linkage mechanism, thereby damaging the driving end side step linkage mechanism and causing collision injuries to pedestrians on the road surface. Summary of the invention

[0005] The problem solved by the present invention is how to reduce the collision damage between the side step assembly and obstacles and pedestrians when the side step assembly fails and cannot be electrically retracted.

[0006] In order to solve the above problems, the present invention provides a driving end side step connecting rod mechanism, a side step assembly and a vehicle.

[0007] In a first aspect, the present invention provides a driving end side step link mechanism, comprising a first frame, a first connecting plate, a second connecting plate, a first connecting rod, a first pin shaft and a locking structure, wherein the first frame is used to connect to a vehicle chassis, one end of the first connecting plate is used to be rotatably connected to the first frame through a driving shaft, one end of the second connecting plate is rotatably connected to the first frame through the first pin shaft, the other ends of the first connecting plate and the second connecting plate are respectively rotatably connected to the first connecting rod through the first pin shaft, and one end of the first connecting rod away from the first connecting plate is used to connect to a side step body;

[0008] The first connecting plate is provided with a mounting groove, and the locking structure is used to be inserted into the mounting groove to abut against the driving shaft; alternatively, the locking structure is used to disengage from the mounting groove to separate from the driving shaft when the side step body is manually retracted.

[0009] Optionally, the locking structure comprises a locking block, at least a portion of which is inserted into the mounting groove and abuts against the drive shaft.

[0010] Optionally, the locking structure further includes a connecting piece, and the locking block is detachably mounted on the first connecting plate via the connecting piece.

[0011] Optionally, the first connecting plate is provided with a connecting hole communicating with the mounting groove, the locking block is provided with a through hole, and the connecting member passes through the through hole of the locking block and is connected with the connecting hole of the first connecting plate.

[0012] Optionally, a limiting groove structure is provided on the driving shaft, and the size of one end of the locking block becomes smaller along the direction of insertion into the installation groove to the opposite other end, and the portion between the two ends in the extension direction of the locking block is used to abut or disengage from the limiting groove structure.

[0013] Optionally, the rotation connection point between the first connecting plate and the first frame is a first position point, the rotation connection point between the first connecting plate and the first connecting rod is a second position point, the rotation connection point between the second connecting plate and the first frame is a third position point, and the rotation connection point between the second connecting plate and the first connecting rod is a fourth position point. The first position point and the second position point form a first connecting line after being connected, and the third position point and the fourth position point form a second connecting line after being connected. The intersection of the first connecting line and the second connecting line is made into a perpendicular line to the side step body, and the foot of the perpendicular formed by the intersection of the perpendicular line and the side step body is on the side step body.

[0014] Optionally, the driving end side pedal connecting rod mechanism further includes a limiting member, and the limiting member is arranged between the first connecting plate and the second connecting plate.

[0015] Optionally, the limiting member is arranged on the side wall of the second connecting plate facing the first connecting plate, or the limiting member is arranged on the side wall of the first connecting plate facing the second connecting plate, or the limiting member is arranged on both the first connecting plate and the second connecting plate.

[0016] Optionally, a first portion between two ends of the first connecting plate in the extension direction is bent toward a direction away from the second connecting plate, and a second portion between two ends of the second connecting plate in the extension direction is bent toward a direction away from the first connecting plate.

[0017] In a second aspect, the present invention provides a side step assembly, including a side step body and the driving end side step connecting rod mechanism as described above.

[0018] Optionally, the side step assembly includes a drive device, which includes a drive body and a drive shaft. The drive body is used to be installed on the vehicle body chassis, and the drive shaft passes through the first connecting plate of the driving end side step linkage mechanism and is connected to the first frame. The drive device is connected to the drive shaft and is used to drive the first connecting plate to rotate via the drive shaft.

[0019] In a third aspect, the present invention provides a vehicle, comprising the driving end side step linkage mechanism as described above, or comprising the side step assembly as described above.

[0020] The driving end side step connecting rod mechanism, side step assembly and vehicle of the present invention have the following beneficial effects:

[0021] The first frame can be fixed at the bottom of the vehicle chassis, for example, and one end of the first connecting plate and the second connecting plate are rotatably connected to the first frame through a drive shaft and the first pin shaft respectively, and the other ends of the first connecting plate and the second connecting plate are rotatably connected to the first connecting rod through another different first pin shaft. The end of the first connecting rod away from the first connecting plate is used to connect the side step body, so that the first connecting plate can be driven to rotate by the drive shaft to drive the second connecting plate and the first connecting rod to work in conjunction, and then drive the side step body to unfold from the bottom of the vehicle chassis to facilitate the driver and passengers to get on and off the vehicle.

[0022] When the side step body is in the deployed state and cannot be retracted electrically through the drive shaft due to, for example, an electronic control failure, the side step body can be manually reset and retracted. For example, the driver and passenger can remove the locking structure from the mounting groove of the first connecting plate to cancel the restriction of the locking structure on the drive shaft, and then operate the side step body to smoothly rotate upward around the axis of the drive shaft through the first connecting rod and the first connecting plate that has lost the restriction of the locking structure, thereby realizing the manual retraction and reset of the side step body and hiding it at the bottom of the vehicle body chassis. Since the side step body moves upward to the retracted position, the ground clearance of the vehicle body chassis will not be reduced, and the size of the vehicle in the left and right directions will not be increased. Therefore, when the vehicle is driving to, for example, a car repair station, the probability of obstacles on the road hitting the drive-end side step connecting rod machine is effectively reduced, and collision injuries with pedestrians can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the side step assembly in a retracted state according to an embodiment of the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at EE in the middle;

[0025] Figure 3 This is one of the structural schematic diagrams of the side step assembly in the unfolded state according to an embodiment of the present invention;

[0026] Figure 4for Figure 3 Schematic diagram of the cross-sectional structure at FF;

[0027] Figure 5 is a schematic diagram of a partial structure of a side step assembly in an unfolded state according to an embodiment of the present invention;

[0028] Figure 6 is a schematic structural diagram of a first connecting plate in an embodiment of the present invention;

[0029] Figure 7 A schematic diagram of the structure of a driving device in an embodiment of the present invention;

[0030] Figure 8 A schematic diagram of a side step assembly in an embodiment of the present invention being converted from an extended state to a retracted state;

[0031] Fig. 9 for Figure 1 Schematic diagram of the cross-sectional structure at GG in the middle;

[0032] Fig.10 Schematic diagram of the exploded structure of the side step assembly in an embodiment of the present invention;

[0033] Fig.11 The second structural schematic diagram of the side step assembly in the deployed state according to the embodiment of the present invention;

[0034] Fig.12 This is the second structural schematic diagram of the side step assembly in the retracted state according to an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 100-driving end side pedal connecting rod mechanism; 110-first frame; 120-first connecting plate; 121-mounting groove; 122-connecting hole; 130-second connecting plate; 140-first connecting rod; 150-first pin shaft; 160-locking structure; 161-locking block; 1611-through hole; 162-connecting piece; 170-limiting piece; 200-driving piece; 201-driving body; 202-driving shaft; 2021-limiting groove structure; 300-side pedal body; 400-following end side pedal connecting rod mechanism; 410-second frame; 420-third connecting plate; 430-fourth connecting plate; 440-second connecting rod. DETAILED DESCRIPTION

[0037] 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 in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0038] The Z axis in the drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis represents the top, and the reverse direction of the Z axis represents the bottom; the X axis in the drawings represents the horizontal direction, and is designated as the front and back position, and the positive direction of the X axis represents the front side, and the reverse direction of the X axis represents the back side; the Y axis in the drawings represents the left and right position, and the positive direction of the Y axis represents the right side, and the reverse direction of the Y axis represents the left side. It should also be noted that the aforementioned Z axis, Y axis, and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 to the present invention.

[0039] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0040] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0041] In view of the problems existing in the above-mentioned related technologies, this embodiment provides a driving end side step connecting rod mechanism, a side step assembly and a vehicle.

[0042] like Figure 1 and Figure 2As shown, a driving end side step link mechanism provided by an embodiment of the present invention comprises a first frame 110, a first connecting plate 120, a second connecting plate 130, a first connecting rod 140, a first pin shaft 150 and a locking structure 160, wherein the first frame 110 is used to connect to a vehicle chassis, one end of the first connecting plate 120 is used to be rotatably connected to the first frame 110 through a driving shaft 202, one end of the second connecting plate 130 is rotatably connected to the first frame 110 through the first pin shaft 150, the other ends of the first connecting plate 120 and the second connecting plate 130 are rotatably connected to the first connecting rod 140 through the first pin shaft 150 respectively, and one end of the first connecting rod 140 away from the first connecting plate 120 is used to connect to a side step body 300;

[0043] The first connecting plate 120 is provided with a mounting groove 121 , and the locking structure 160 is inserted into the mounting groove 121 to abut against the driving shaft 202 ; the locking structure 160 is used to disengage from the mounting groove 121 to separate from the driving shaft 202 when the side step body 300 is manually retracted.

[0044] Specifically, the first frame 110 can be used as a connecting component for the first connecting plate 120 and the second connecting plate 130 to be installed on the vehicle chassis. The driving end side step link mechanism 100 can include three first pins 150, and the driving shaft may not be a component of the driving end side step link mechanism, wherein one end of the first connecting plate 120 is rotatably connected to the first frame 110 through the driving shaft 202, and the two ends of the second connecting plate 130 are rotatably connected to the first frame 110 and the first connecting rod 140 through different first pins 150, and the other end of the first connecting plate 120 is rotatably connected to the first connecting rod 140 through the first pin 150, so that the first connecting plate 120 can be rotated under the driving action of the driving shaft 202 to drive the second connecting plate 130 and the first connecting rod 140 to work in conjunction.

[0045] The first connecting rod 140 may serve as a connecting component between the first connecting plate 120 , the second connecting plate 130 and the side step body 300 .

[0046] An installation groove 121 is opened on a side wall of the first connecting plate 120 away from the second connecting plate 130 so that the driver and passengers can use vehicle-mounted tools to insert the locking structure 160 into the installation groove 121 to abut against the drive shaft 202, or remove the locking structure 160 from the installation groove 121 of the first connecting plate 120.

[0047] Among them, when the vehicle is in normal driving, the locking structure 160 is in the installation groove 121 and abuts against the drive shaft 202, so that the first connecting plate 120 and the drive shaft 202 can be fixed as an integral structure through the locking structure 160, so that the first connecting plate 120 can rotate under the driving action of the drive shaft 202, so as to drive the first connecting rod 140 to work together, and drive the side step body 300 to unfold from the bottom of the vehicle body chassis, which is helpful for the driver and passengers to get on and off the vehicle; when it is in the unfolded state and an electric control failure occurs, such as an electric control failure, and it cannot be electrically retracted by the drive device 200, at this time, the driver and passengers can use the vehicle-mounted tool to remove the locking structure 160 from the installation groove 121 of the first connecting plate 120, so that the first connecting plate 120 and the drive shaft 202 lose the restriction of the locking structure 160, which helps the driver and passengers to apply a force to the side step body 300, so that the first connecting plate 120 can rotate smoothly around the drive shaft 202, thereby realizing the manual reset of the side step body 300 from the unfolded state to the retracted state.

[0048] In this embodiment, the first frame 110 can be fixed at, for example, the bottom of a vehicle chassis, and one end of the first connecting plate 120 and the second connecting plate 130 are rotatably connected to the first frame 110 via the drive shaft 202 and the first pin shaft 150 respectively, and the other ends of the first connecting plate 120 and the second connecting plate 130 are rotatably connected to the first connecting rod 140 via another different first pin shaft 150 respectively. One end of the first connecting rod 140 away from the first connecting plate 120 is used to connect the side step body 300, so that the first connecting plate 120 can be driven to rotate by the drive shaft 202 to drive the second connecting plate 130 and the first connecting rod 140 to work in conjunction, thereby driving the side step body 300 to unfold from the bottom of the vehicle chassis to facilitate the driver and passengers to get on and off the vehicle.

[0049] When the side step body 300 is in the deployed state and cannot be electrically retracted through the drive shaft 202 due to, for example, an electronic control failure, the side step body 300 can be manually retracted and reset. For example, the driver and passenger can remove the locking structure 160 from the mounting slot 121 of the first connecting plate 120 to cancel the restriction of the locking structure 160 on the drive shaft 202, and then operate the side step body 300 to smoothly rotate upward around the axis of the drive shaft 202 through the first connecting rod 140 and the first connecting plate 120 that has lost the restriction of the locking structure 160, thereby realizing the manual retraction and reset of the side step body 300 and hiding it at the bottom of the vehicle body chassis. Since the side step body 300 moves upward to the retracted position, the ground clearance of the vehicle body chassis will not be reduced, and the size of the vehicle in the left and right directions will not be increased. Therefore, when the vehicle is driving to, for example, a car repair station, the probability of obstacles on the road hitting the drive-end side step connecting rod machine is effectively reduced, and collision injuries with pedestrians can also be avoided.

[0050] Optionally, combined Figure 2 , Figure 4 and Figure 5 As shown, the locking structure 160 includes a locking block 161 , at least a portion of which is inserted into the mounting slot 121 and abuts against the driving shaft 202 .

[0051] Specifically, the outer shape of the locking block 161 may match the inner shape of the mounting groove 121 , which helps the locking block 161 to be smoothly inserted into or removed from the mounting groove 121 .

[0052] For example, if the locking block 161 is a polygonal column structure, the mounting groove 121 may be a groove having a polygonal column shape; if the locking block 161 is a polygonal pyramid structure, the mounting groove 121 may be a groove having a polygonal pyramid shape.

[0053] At least part of the locking block 161 is inserted into the installation slot 121 , which means that part of the locking block 161 is inside the installation slot 121 and the other part is outside the installation slot 121 ; or, the entire locking block 161 is inside the installation slot 121 .

[0054] In this optional embodiment, since at least a portion of the locking block 161 is inserted into the mounting groove 121 and abuts against the drive shaft 202, not only can the first connecting plate 120 and the drive shaft 202 be fixed as an integral structure through the locking block 161, which helps to basically transmit the rotational force of the drive shaft 202 to the first connecting plate 120, thereby reducing the loss of driving force and enabling the side pedal body 300 to smoothly switch between the deployed state and the retracted state under the drive action of the drive shaft 202, but it also helps the driver and passengers to operate the locking block 161 in the mounting groove 121 to insert or disengage from the mounting groove 121.

[0055] Optionally, combined Figure 2 and Figure 4 As shown, the locking structure 160 further includes a connecting member 162 , and the locking block 161 is detachably mounted on the first connecting plate 120 via the connecting member 162 .

[0056] Specifically, the locking block 161 can be detachably installed in or detached from the installation groove 121 of the first connecting plate 120 through the connecting piece 162 .

[0057] For example, the connector 162 may be a snap plate, a bolt connector, or the like.

[0058] In this optional embodiment, the locking block 161 can be detachably mounted on the first connecting plate 120 via a connecting piece 162 to increase the stability of the locking block 161 installed in the installation slot 121 and effectively prevent the locking block 161 from being separated from the installation slot 121.

[0059] Optionally, the connector 162 can be used to mount the locking block 161 on the first connecting plate 120 in the following manner, for example, by combining Figure 5 and Figure 6 As shown, the first connecting plate 120 is provided with a connecting hole 122 communicating with the mounting groove 121 , the locking block 161 is provided with a through hole 1611 , and the connecting member 162 penetrates the through hole 1611 of the locking block 161 and is connected to the connecting hole 122 of the first connecting plate 120 .

[0060] Specifically, the extending direction of the through hole 1611 of the locking block 161 may be consistent with the insertion direction of the locking block 161 into the mounting groove 121. The size of the connecting member 162 may match the size of the through hole 1611, so that the connecting member 162 can smoothly pass through the through hole 1611 of the locking block 161 and connect to the connecting hole 122 of the first connecting plate 120.

[0061] The connecting member 162 and the connecting hole 122 can be connected in the following manner. For example, if the connecting member 162 is a connecting bolt, the connecting hole 122 is a threaded hole, so that the connecting member 162 is threadedly connected to the connecting hole 122 of the first connecting plate 120; or, if the end of the connecting member 162 is a plug connector, the connecting member 162 as a plug connector can be plugged into the connecting hole 122 of the first connecting plate 120.

[0062] The connection hole 122 may pass through the first connection plate 120 , or may not pass through the first connection plate 120 .

[0063] In this optional embodiment, when the locking structure 160 is plugged into the mounting slot 121, the connecting piece 162 passes through the through hole 1611 of the locking block 161 and is connected to the connecting hole 122. At this time, the portion between the two ends of the locking block 161 in the extension direction can abut against the drive shaft 202, so as to fix the locking block 161 in the mounting slot 121 of the first connecting plate 120 through the connecting piece 162; when the locking structure 160 is separated from the mounting slot 121, the connecting piece 162 can be operated to disengage from the connecting hole 122, and under the pulling force of the driver and passenger, the locking block 161 can be removed from the mounting slot 121, so that after the first connecting plate 120 and the drive shaft 202 lose the limiting effect of the locking block 161, it helps the side pedal body 300 to be converted from the deployed state to the retracted state under the manual external force of the driver and passenger.

[0064] Optionally, combined Figure 5 and Figure 7As shown, a limit groove structure 2021 is provided on the driving shaft 202, and the size of one end of the locking block 161 becomes smaller along the direction of insertion into the installation groove 121 to the opposite other end, and the portion between the two ends of the extension direction of the locking block 161 is used to abut or disengage from the limit groove structure 2021.

[0065] Specifically, the surface shape of the limiting groove structure 2021 can match the shape of the portion between the two ends of the locking block 161 in the extension direction.

[0066] Combination Figure 5 As shown, along the insertion direction of the locking block 161 into the installation groove 121, the size of the locking block 161 from one end to the opposite other end gradually decreases. It can be understood that the locking block 161 can be a wedge-shaped key block, and the inner diameter of the corresponding installation groove 121 gradually decreases along the insertion direction. Correspondingly, along the insertion direction of the locking block 161, the width of the limiting groove structure 2021 from one end to the other end also gradually decreases.

[0067] In this optional embodiment, since the size of one end of the locking block 161 becomes smaller along the direction of insertion into the installation groove 121 to the other opposite end, when the locking block 161 is inserted into the installation groove 121, as the locking block 161 is continuously inserted, the portion between the two ends in the extension direction of the locking block 161 can gradually contact the limiting groove structure 2021 of the drive shaft 202, so that the locking block 161 has a certain guiding effect relative to the limiting groove structure 2021 of the drive shaft 202, and can make it quickly and automatically adapt to abut against the limiting groove structure 2021 of the drive shaft 202, so as to improve the abutment between the locking block 161 and the limiting groove of the drive shaft 202. Quickness; and, after at least a portion of the locking block 161 is inserted into the mounting groove 121, the connecting piece 162 can penetrate the through hole 1611 of the locking block 161 and connect to the connecting hole 122. During the fastening process of the connecting piece 162 and the connecting hole 122, the connection tightness between the portion between the two ends of the locking block 161 and the limiting groove structure 2021 of the drive shaft 202 can be further improved, and the connection stability between the locking block 161 and the first connecting plate 120 is correspondingly improved, effectively reducing the loss generated in the process of transmitting the driving force of the drive shaft 202 to the first connecting plate 120, and correspondingly ensuring the driving stability of the side pedal body 300 when unfolding or retracting.

[0068] Optionally, combined Figure 8As shown, the rotation connection point between the first connecting plate 120 and the first frame 110 is a first position point, the rotation connection point between the first connecting plate 120 and the first connecting rod 140 is a second position point, the rotation connection point between the second connecting plate 130 and the first frame 110 is a third position point, and the rotation connection point between the second connecting plate 130 and the first connecting rod 140 is a fourth position point. The first position point and the second position point form a first connecting line after being connected, and the third position point and the fourth position point form a second connecting line after being connected. The intersection of the first connecting line and the second connecting line is perpendicular to the side step body 300, and the foot of the perpendicular formed by the intersection of the perpendicular line and the side step body 300 is on the side step body 300.

[0069] Specifically, the first connecting plate 120 can be connected to the first frame 110 through the driving shaft 202. Therefore, the rotation connection point between the first connecting plate 120 and the first frame 110 can be the axis position of the driving shaft 202 (i.e., the first position point). Figure 8 The first connecting plate 120 can be connected to the first connecting rod 140 by rotation through the first pin 150, and the rotation connection point between the first connecting plate 120 and the first connecting rod 140 can be the axis position of the first pin 150 (i.e., the second position point), which can be used Figure 8 The second connecting plate 130 can be connected to the first frame 110 through another first pin 150, and the rotation connection point between the second connecting plate 130 and the first frame 110 can be the axis position of the other first pin 150 (i.e., the third position point), which can be used Figure 8 The second connecting plate 130 can be connected to the first connecting rod 140 by rotation through the first pin 150, and the second connecting plate 130 and the first connecting rod 140 can be connected to the first connecting rod 140 by rotation at the axis position of the first pin 150 (ie, the fourth position point). Figure 8 The letter C is marked.

[0070] Combination Figure 8 As shown, the first line formed by connecting the first position point and the second position point can be defined as the AB line, the second line formed by connecting the third position point and the fourth position point can be defined as the DC line, and the intersection point of the first line (AB line) and the second line (DC line) can be defined as Figure 8 The letter P is marked in the middle, and a perpendicular line is drawn from the intersection point (point P) of the first connecting line and the second connecting line toward the upper surface of the side step body 300. The foot of the perpendicular formed by the intersection of the perpendicular line and the side step body 300 can be marked with the letter Q, and the letter Q is located on the side step body 300.

[0071] Combination Figure 8 As shown, the side step body 300 indicated by the dotted line is in an expanded state (or expanded position), and the side step body 300 indicated by the solid line is in a retracted state (or retracted position).

[0072] In this optional embodiment, since the vertical foot formed by the intersection of the first connecting line and the second connecting line toward the upper surface of the side step body 300 is located on the side step body 300, during the movement of the side step body 300 from the deployed state to the retracted state, at least one point on the side step body 300 initially moves upward. Figure 8 As shown, the movement trajectory T of the side step body 300 from the deployed state to the retracted state moves upward at the beginning, moves to the highest point H, and then moves downward, so that the side step body 300 forms a self-locking state (or retracted position).

[0073] When the side step body 300 is in the unfolded state and cannot be electrically retracted by the drive shaft 202 due to, for example, an electric control failure, the driver and passenger can remove the locking structure 160 from the mounting groove 121 of the first connecting plate 120 to cancel the restriction of the locking structure 160 on the drive shaft 202, and then operate the side step body 300 to smoothly rotate upward around the axis of the drive shaft 202 through the first connecting rod 140 and the first connecting plate 120 without the restriction of the locking structure 160, so as to realize the manual retraction and reset of the side step body 300 and hide it at the bottom of the vehicle chassis to be in the retracted state. At this time, since the above-mentioned side step body 300 forms a self-locking in the retracted state, the side step body 300 can be effectively prevented from automatically unfolding under the action of gravity, and the connecting member 162 and the locking block 161 do not need to be reinstalled. The side step body 300 can be kept in the retracted state at this time to complete the manual resetting. Finally, the vehicle can be driven into the car repair station to repair the electric control part of the side step assembly. After the repair, the side step assembly can continue to be used normally.

[0074] In the related art, for a vehicle's side step assembly, if the side step body 300 is stepped on sideways during its retraction process or at its retracted position, the stepping force will be directly transmitted to the inside of the driver body of the side step assembly via the drive shaft, causing damage to the driver body, such as the motor.

[0075] Therefore, combined Fig. 9 As shown, the driving end side pedal link mechanism 100 further includes a limiting member 170 , and the limiting member 170 is disposed between the first connecting plate 120 and the second connecting plate 130 .

[0076] Specifically, the limiting member 170 may be a plate-shaped structure with flexible characteristics.

[0077] In this optional embodiment, a limit member 170 is provided between the first connecting plate 120 and the second connecting plate 130. When the driver and passenger steps on the side step body 300 when the side step body 300 is in the retracted position or the retracted state, the pedaling force acting on the side step body 300 will be transmitted to the limit member 170 via the side step body 300, the first connecting rod 140 and the second connecting plate 130 in sequence, and then absorbed by the limit member 170, so as to reduce the pedaling force acting on the side step body 300 and transmitted to the drive shaft 202, so as to protect the drive shaft 202.

[0078] Optionally, the limit member 170 can adopt the following three installation positions, for example, the limit member 170 is arranged on the side wall of the second connecting plate 130 facing the first connecting plate 120, or, the limit member 170 is arranged on the side wall of the first connecting plate 120 facing the second connecting plate 130, or, the limit member 170 is arranged on both the first connecting plate 120 and the second connecting plate 130.

[0079] Specifically, the limit member 170 can be pre-fixed and installed on a side wall of the second connecting plate 130 facing the first connecting plate 120; or, the limit member 170 can be pre-fixed and installed on a side wall of the first connecting plate 120 facing the second connecting plate 130; or, the limit member 170 can be pre-set on a side wall of the first connecting plate 120 facing the second connecting plate 130, and on a side wall of the second connecting plate 130 facing the first connecting plate 120.

[0080] The limiting member 170 may be fixed to the side wall of the first connecting plate 120 and / or the second connecting plate 130 by the following methods, such as bonding, riveting, bolting, etc.

[0081] Optionally, combined Figure 2 , Figure 4 and Fig. 9 As shown, a first portion between two ends of the first connecting plate 120 in the extension direction is bent toward a direction away from the second connecting plate 130 , and a second portion between two ends of the second connecting plate 130 in the extension direction is bent toward a direction away from the first connecting plate 120 .

[0082] Specifically, a portion between two ends of the first connecting plate 120 in the extending direction may be defined as a first portion, and a portion between two ends of the second connecting plate 130 in the extending direction may be defined as a second portion.

[0083] A first portion between the two ends of the first connecting plate 120 in the extension direction is bent toward a direction away from the second connecting plate 130, which can be understood as the first portion of the first connecting plate 120 is bent toward a direction away from the second connecting plate 130. In other words, the first connecting plate 120 can be an arc-shaped plate structure; similarly, a second portion between the two ends of the second connecting plate 130 in the extension direction is bent toward a direction away from the first connecting plate 120, which can be understood as the second portion of the second connecting plate 130 is bent toward a direction away from the first connecting plate 120. In other words, the second connecting plate 130 can be an arc-shaped plate structure, and the bending direction of the first connecting plate 120 is opposite to that of the second connecting plate 130.

[0084] In this optional embodiment, since the first portion of the first connecting plate 120 is bent in a direction away from the second connecting plate 130, and the second portion of the second connecting plate 130 is bent in a direction away from the first connecting plate 120, this is equivalent to increasing the distance between the first connecting plate 120 and the second connecting plate 130, and correspondingly increasing the swing margin of the side step body 300 relative to the first connecting plate 120 through the first connecting rod 140 and the second connecting plate 130, and correspondingly increasing the convenience of stepping on the side step body 300 for the driver and passenger and the stepping stride range.

[0085] Another embodiment of the present invention provides a side step assembly, including a side step body 300 and the driving end side step connecting rod mechanism 100 as described in the above embodiment.

[0086] The beneficial effects of the side step assembly of this embodiment relative to the prior art are the same as those of the above-mentioned driving end side step connecting rod mechanism 100 , and will not be described in detail here.

[0087] Optionally, combined Fig.10 As shown, the side step assembly includes a drive device 200, and the drive device 200 includes a drive body 201 and a drive shaft 202. The drive body 201 is used to be installed on the vehicle body chassis, and the drive shaft 202 passes through the first connecting plate 120 of the driving end side step linkage mechanism 100 and is connected to the first frame 110. The drive device 200 is connected to the drive shaft 202 and is used to drive the first connecting plate 120 to rotate through the drive shaft 202.

[0088] Specifically, the driver body 201 may be a motor body, and the drive shaft 202 may be a motor shaft, or a transmission shaft coaxially connected to the motor shaft.

[0089] Alternatively, the driver body 201 is a hydraulic cylinder, and the drive shaft 202 may be a rotating shaft of the hydraulic cylinder.

[0090] Fig.11 is a schematic diagram of the side step body 300 in an unfolded state, Fig.12It is a schematic diagram showing the side step body 300 in a retracted state.

[0091] Combination Fig.11 and Fig.12 As shown, the driver body 201 can drive the first connecting plate 120 to rotate through the driving shaft 202, so as to drive the second connecting plate 130 and the first connecting rod 140 to work together through the first connecting plate 120, so as to realize the conversion of the side step body 300 between the deployed position and the retracted position.

[0092] The side step assembly also includes at least one follower-end side step linkage mechanism 400, and at least one follower-end side step linkage mechanism 400 and the driving-end side step linkage mechanism 100 are spaced apart along the extension direction of the side step body 300 to ensure the stability of the side step body 300 in the conversion between the deployed position and the retracted position, as well as the support strength for the driver and passengers.

[0093] Among them, the follower end side step linkage mechanism 400 may include a second frame 410, a third connecting plate 420, a fourth connecting plate 430, a second connecting rod 440 and a second pin shaft (not shown in the figure), the second frame 410 is used to connect to the vehicle body chassis, one end of the third connecting plate 420 and the fourth connecting plate 430 are rotatably connected to the second frame 410 through different second pin shafts, the other ends of the third connecting plate 420 and the fourth connecting plate 430 are rotatably connected to the second connecting rod 440 through different second pin shafts, and the end of the second connecting rod 440 away from the third connecting plate 420 is used to connect to the side step body 300.

[0094] Another embodiment of the present invention provides a vehicle, comprising the driving end side step connecting rod mechanism as described in the above embodiment, or comprising the side step assembly as described in the above embodiment.

[0095] The beneficial effects of the vehicle of this embodiment compared to the prior art are the same as those of the above-mentioned drive-end side step connecting rod mechanism or side step assembly, and will not be described in detail here.

[0096] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A driving end side step connecting rod mechanism, characterized in that: The invention comprises a first frame (110), a first connecting plate (120), a second connecting plate (130), a first connecting rod (140), a first pin shaft (150) and a locking structure (160); the first frame (110) is used to connect to a vehicle chassis; one end of the first connecting plate (120) is used to be rotatably connected to the first frame (110) through a driving shaft (202); one end of the second connecting plate (130) is rotatably connected to the first frame (110) through the first pin shaft (150); the other ends of the first connecting plate (120) and the second connecting plate (130) are respectively rotatably connected to the first connecting rod (140) through the first pin shaft (150); and one end of the first connecting rod (140) away from the first connecting plate (120) is used to be connected to a side step body (300); The first connecting plate (120) is provided with a mounting groove (121), and the locking structure (160) is inserted into the mounting groove (121) to abut against the driving shaft (202); the locking structure (160) is used to disengage from the mounting groove (121) to separate from the driving shaft (202) when the side step body (300) is manually retracted.

2. The driving end side step connecting rod mechanism according to claim 1, characterized in that: The locking structure (160) comprises a locking block (161), at least a portion of which is inserted into the mounting groove (121) and abuts against the driving shaft (202).

3. The driving end side step connecting rod mechanism according to claim 2, characterized in that: The locking structure (160) further comprises a connecting piece (162), and the locking block (161) is detachably mounted on the first connecting plate (120) via the connecting piece (162).

4. The driving end side step connecting rod mechanism according to claim 3, characterized in that: The first connecting plate (120) is provided with a connecting hole (122) communicating with the mounting groove (121); the locking block (161) is provided with a through hole (1611); the connecting member (162) passes through the through hole (1611) of the locking block (161) and is connected to the connecting hole (122) of the first connecting plate (120).

5. The driving end side step connecting rod mechanism according to claim 2, characterized in that: The drive shaft (202) is provided with a limit groove structure (2021), and the size of one end of the locking block (161) decreases along the direction of insertion into the installation groove (121) to the other opposite end, and the portion between the two ends of the locking block (161) in the extension direction is used to abut against or disengage from the limit groove structure (2021).

6. The driving end side step connecting rod mechanism according to claim 1, characterized in that: The rotation connection point between the first connecting plate (120) and the first frame (110) is a first position point, the rotation connection point between the first connecting plate (120) and the first connecting rod (140) is a second position point, the rotation connection point between the second connecting plate (130) and the first frame (110) is a third position point, and the rotation connection point between the second connecting plate (130) and the first connecting rod (140) is a fourth position point. The first position point and the second position point form a first connecting line after being connected, and the third position point and the fourth position point form a second connecting line after being connected. The intersection of the first connecting line and the second connecting line is perpendicular to the side step body (300), and the foot of the perpendicular formed by the intersection of the perpendicular line and the side step body (300) is on the side step body (300).

7. The driving end side step link mechanism according to any one of claims 1 to 6, characterized in that: It also includes a limiting member (170), wherein the limiting member (170) is arranged between the first connecting plate (120) and the second connecting plate (130).

8. The driving end side step connecting rod mechanism according to claim 7, characterized in that: The limiting member (170) is arranged on the side wall of the second connecting plate (130) facing the first connecting plate (120), or the limiting member (170) is arranged on the side wall of the first connecting plate (120) facing the second connecting plate (130), or the limiting member (170) is arranged on both the first connecting plate (120) and the second connecting plate (130).

9. The driving end side step connecting rod mechanism according to claim 7, characterized in that: A first portion between the two ends of the first connecting plate (120) in the extension direction is bent in a direction away from the second connecting plate (130), and a second portion between the two ends of the second connecting plate (130) in the extension direction is bent in a direction away from the first connecting plate (120).

10. A side step assembly, characterized in that: It comprises a side step body (300) and a driving end side step connecting rod mechanism as claimed in any one of claims 1 to 9.

11. The side step assembly according to claim 10, characterized in that: The vehicle also comprises a driving device (200), the driving device (200) comprising a driving body (201) and a driving shaft (202), the driving body (201) being used for being installed on a vehicle chassis, the driving shaft (202) penetrating through a first connecting plate (120) of the driving end side pedal link mechanism (100) and being connected to a first frame (110), the driving device (200) being connected to the driving shaft (202) and being used for driving the first connecting plate (120) to rotate via the driving shaft (202).

12. A vehicle, characterized in that: It comprises the driving end side step connecting rod mechanism as described in any one of claims 1 to 9, or comprises the side step assembly as described in claim 10 or 11.

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